A SUPPORT DEVICE, A CONCRETE FORM SYSTEM, METHOD FOR MOUNTING A CONCRETE FORM AND A USE OF A MAGNET

FIELD OF THE INVENTION

The present invention relates to a support device and more particularly to a support device according to the preamble of claim 1.

The present invention also relates to a concrete form system and more particularly to a concrete form system according to the preamble of claim 6.

The present invention also relates to a method for mounting a concrete form and more particularly to a method for mounting a concrete form according to the preamble of claim 13.

The present invention also relates to a use of a magnet and more particularly to use of a magnet according to the preamble of claim 17.

BACKGROUND OF THE INVENTION

Some steel structures such as cooling pipes of a blast furnace are covered with concrete.

In the prior art the concrete forms are fixed to vertical steel structures with welding.

One of the problems associated with the prior art is that welding is slow and complicate to produce. Furthermore, welding is difficult remove when the concrete form is moved to other position.

BRIEF DESCRIPTION OF THE INVENTION

An object of the present invention is to provide a support device, a concrete form system, a method for mounting a concrete form and use of a magnet so as to solve or at least alleviate the prior art disadvantages.

The objects of the invention are achieved by a support device which are characterized by what is stated in the independent claim 1.

The objects of the invention are also achieved by a concrete form system which is characterized by what is stated in the independent claim 6.

The objects of the invention are also achieved by a method for mounting a concrete form which is characterized by what is stated in the independent claim 13.

The objects of the invention are also achieved by a use of a magnet which is characterized by what is stated in the independent claim 17.

The preferred embodiments of the invention are disclosed in the dependent claims.

The invention is based on the idea of providing a support device for supporting a concrete form on a ferromagnetic structure. According to the present invention the support device comprises a support surface arranged to be positioned on the ferromagnetic structure, a magnet for attaching the support device on the ferromagnetic structure, a housing, a detaching mechanism for detaching the support device from the ferromagnetic structure, a concrete form mounting arrangement for mounting a concrete form to the support device. The support device is arranged to carry a tension force from the concrete form mounting arrangement to the support surface, the tension force being transverse in relative to the support surface.

In other words, the support device is arranged to transfer a tension load of the concrete form to the ferromagnetic structure. The tension load pulls the concrete form away from the ferromagnetic structure in a direction transverse to the support surface.

In one embodiment, the magnet being permanent magnet.

A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic. These include the elements iron, nickel, cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone. Typically, ferromagnetic materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic.

The permanent magnet does not need external electric power; thus, it is easy to use.

In one embodiment, the concrete form mounting arrangement is connected to the housing, the housing is arranged between the concrete form mounting arrangement and the support surface, and the housing is arranged to carry the tension force between the concrete form mounting and the support surface.

In one embodiment, the housing comprising the support surface.

In one embodiment, the housing comprises one or more holes arranged to the magnet.

In other words, the housing being made of a rigid material . The housing may be made of steel, metal, aluminium, plywood or polymer.

In one embodiment, the housing comprises a honeycomb structure.

In this application a honeycomb structure means man-made structures that have the geometry of a honeycomb to allow the minimization of the amount of used material to reach minimal weight and minimal material cost. The geometry of honeycomb structures can vary but the common feature of all such structures is an array of hollow cells formed between thin vertical walls

In one embodiment, the support device comprises wooden material, plywood material, polymer material, steel material or aluminium material.

In one embodiment, the support device comprises a honeycomb structure.

In one embodiment, the detaching mechanism comprises a crowbar arranged to detach the support device from the ferromagnetic structure.

The crowbar enables beginning detaching the magnet from one edge and thus, it reduces need force for detaching.

In an alternative embodiment, the magnet being permanent magnet, the detaching mechanism comprises a crowbar arranged to detach the support device from the ferromagnetic structure.

The permanent magnet does not need external electric power; thus, it is easy to use. The crowbar enables beginning detaching the magnet from one edge and thus, it reduces need force for detaching.

In another alternative embodiment, the magnet being permanent magnet, the detaching mechanism comprises a crowbar and a detaching part, and the crowbar is arranged to detach the support device from the ferromagnetic structure with the detaching part.

In a yet another alternative embodiment, the magnet being permanent magnet, the detaching mechanism comprises a crowbar and a detaching part, and the crowbar is arranged to push the detaching part against the ferromagnetic structure.

In a yet another alternative embodiment, the magnet being permanent magnet, the detaching mechanism comprises a crowbar, a detaching part and a detaching mechanism hinge between the crowbar and the detaching part, the crowbar is arranged to push the detaching part towards the ferromagnetic structure. In a yet another alternative embodiment, the magnet being permanent magnet, the detaching mechanism comprises a crowbar, a detaching part, a detaching part support and a detaching opening provided to the detaching part support and a detaching mechanism hinge between the crowbar and the detaching part, the crowbar is arranged to move the detaching part towards the ferromagnetic structure relative and the detaching part extends through the detaching opening.

In a yet another alternative embodiment, the magnet being permanent magnet, the detaching mechanism comprises a crowbar, a detaching part, a detaching part support, a detaching opening provided to the detaching part support and a detaching mechanism hinge between the crowbar and the detaching part, the crowbar is arranged to move the detaching part towards the ferromagnetic structure relative, the detaching part extends through the detaching opening, and the detaching mechanism is connected to the housing.

The detaching mechanism connected to the housing further eases detaching the support device from the ferromagnetic structure.

In a yet another alternative embodiment, the magnet being an electromagnet and the detaching mechanism comprises an electric switch arranged to turn off electric power to the magnet.

The electromagnet is easy to detach with the electric power switch.

In one embodiment, the support device comprises a transverse support arrangement comprising a support part, the support part comprises a first transverse support surface arranged to be supported on the ferromagnetic structure. The first transverse support surface being transverse in relative to the support surface.

In an alternative embodiment, the support device comprises a transverse support arrangement comprising a support part protruding from the support surface in a direction away from the magnet, the support part comprising a first transverse support surface arranged to be supported on the ferromagnetic structure, and the first transverse support surface being transverse in relative to the support surface.

In another alternative embodiment, the support device comprises a transverse support arrangement comprising a support part protruding from the support surface in a direction away from the magnet, the support part comprising a first transverse support surface arranged to be supported on the ferromagnetic structure, the first transverse support surface being transverse in relative to the support surface, and the first support surface comprises a curved portion.

The transverse support arrangement supports the support device in direction transverse to the support surface. In other words, the contact of the support part to the ferromagnetic structure provides a horizontal support for the support device.

In one embodiment, the transverse support arrangement further comprises a second support surface, and the first support surface and the second support surface are arranged to be positioned on the ferromagnetic structure.

In an alternative embodiment, the transverse support arrangement further comprises a second support surface, and the first support surface and the second support surface face in opposite directions.

In another alternative embodiment, the support part further comprises a second support surface, the first support surface and the second support surface are arranged to be positioned on the ferromagnetic structure , and the first support surface and the second support surface face in opposite directions.

In a yet another alternative embodiment, the support part further comprises a second support surface, the first support surface and the second support surface are arranged to be positioned on the outer surface of the ferromagnetic structure, and the first support surface and the second support surface face in opposite directions.

In a yet another alternative embodiment, the support part further comprises a second support surface, the first support surface and the second support surface are arranged to be positioned on the outer surface of the ferromagnetic structure, and the first support surface and the second support surface face in opposite directions, and the transverse support arrangement further comprises a distance adjustment arrangement for adjusting a distance between the first support surface and the second support surface.

In a yet another alternative embodiment, the support part further comprises a second support surface, the first support surface and the second support surface are arranged to be positioned on the ferromagnetic structure , and the first support surface and the second support surface face in opposite directions, and the second support surface being circular.

In a yet another alternative embodiment, the support part further comprises a second support surface, the first support surface and the second support surface are arranged to be positioned on the outer surface of the ferromagnetic structure, and the first support surface and the second support surface face in opposite directions, and the second support surface being circular the transverse support arrangement further comprises a distance adjustment arrangement for adjusting a distance between the first support surface and the second support surface.

The second support surface provides a support for the support device in opposite directions. In other words, the contact of the support part to the ferromagnetic structure provides a horizontal support for the support device in opposite directions.

In one embodiment, the mounting arrangement comprises a mounting surface arranged to mount a ferromagnetic material to the support device.

In other words, the concrete form comprises a ferromagnetic part which may attached on the mounting surface of the support device.

This is a fast way to mount the concrete form to the support device.

In an alternative embodiment, the mounting arrangement comprises a mounting part comprising one or more mounting part openings for a screw.

This kind of mounting part is simple to manufacture.

In another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement.

In another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement, the lock mechanism comprises an eccentric part and a lock bar connected to the eccentric part, the lock bar is arranged to turn the eccentric part against the support member of the concrete form.

The lock mechanisms provides a fast way to connect a concrete form to the support device.

In a yet another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement, the lock mechanism comprises an eccentric part and a lock bar connected to the eccentric part, the lock bar is arranged to turn the eccentric part against the support member of the concrete form, and the concrete form mounting arrangement is movable connected to the housing.

The movable connection enable position the mounting arrangement near to the concrete form.

In a yet another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement, the lock mechanism comprises an eccentric part and a lock bar connected to the eccentric part, the lock bar is arranged to turn the eccentric part against the support member of the concrete form, the concrete form mounting arrangement is movable connected to the housing, the concrete form mounting arrangement is arranged to be moved between a first position and a second position, and the concrete form mounting arrangement is arranged to cover at least a part of the detaching mechanism in the first position and in the second position the detaching mechanism being exposed.

The detaching mechanism is not possible to use accidentally when the concrete form mounting arrangement is movable connected to the housing and the concrete form mounting arrangement is arranged to cover at least a part of the detaching mechanism in the first position.

In a yet another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement, the lock mechanism comprises an eccentric part and a lock bar connected to the eccentric part, the lock bar is arranged to turn the eccentric part against the support member of the concrete form, the concrete form mounting arrangement is movable connected to the housing, the concrete form mounting arrangement is arranged to be moved between a first position and a second position, and the concrete form mounting arrangement is arranged to cover at least a part of the detaching mechanism in the first position and in the second position the detaching mechanism being exposed, and the support device comprises a connection clearance between the housing and the concrete form mounting arrangement.

The connection clearance equalises a pulling force on the support surface. In a yet another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement, the lock mechanism comprises an eccentric part and a lock bar connected to the eccentric part, the lock bar is arranged to turn the eccentric part against the support member of the concrete form, the concrete form mounting arrangement is movable connected to the housing, the concrete form mounting arrangement is arranged to be moved between a first position and a second position, and the concrete form mounting arrangement is arranged to cover at least a part of the detaching mechanism in the first position and in the second position the detaching mechanism being exposed, the support device comprises a connection clearance between the housing and the concrete form mounting arrangement, and the connection clearance being between 0,1 mm to 1 mm.

The connection clearance 0,1 mm to 1 mm is sufficient to equalise a pulling force on the support surface.

In a yet another alternative embodiment, the mounting arrangement comprises a mounting part comprising a mounting arrangement recess for receiving a support member of a concrete form and a lock mechanism arranged to lock the support member of the concrete form to the concrete form mounting arrangement, the lock mechanism comprises an eccentric part and a lock bar connected to the eccentric part, the lock bar is arranged to turn the eccentric part against the support member of the concrete form, the concrete form mounting arrangement is movable connected to the housing, the concrete form mounting arrangement is arranged to be moved between a first position and a second position, the concrete form mounting arrangement is arranged to cover at least a part of the detaching mechanism in the first position and in the second position the detaching mechanism being exposed, the support device comprises an extendable connecting part between the housing and the concrete form mounting arrangement, the support device comprises a connection clearance between the housing and the concrete form mounting arrangement, and the connection clearance being between 0,1 mm to 1 mm.

The housing carries a force form the concrete form mounting arrangement to the ferromagnetic structure.

The present invention also relates to a concrete form system. The concrete form system comprises a ferromagnetic structure, the ferromagnetic structure having an outer surface of the ferromagnetic structure, the ferromagnetic structure having a first end and a second end, the outer surface of the ferromagnetic structure extending in vertical direction. The concrete form system further comprises one or more support devices comprising a magnet for attaching the one or more support devices on the outer surface of the ferromagnetic structure, a housing, a detaching mechanism for detaching the one or more support devices from the ferromagnetic structure and a concrete form mounting arrangement arranged to mount a concrete form to the one or more support devices. The concrete form system further comprises a concrete form mounted to the one or more support devices.

In this context vertical direction means a direction having an angle between the direction and the surface of the ground being between 70 degrees to 110 degrees. The surface of the ground is horizontal.

In one embodiment, the concrete form comprises a first support member, the one or more support devices comprises a first support device and a second support device, the second support device is arranged at a distance from the first support device, the first support device and the second support device are arranged above the concrete form, and the first support device and the second support device are arranged to support the first support member of the concrete form.

The first support device and the second support device above the concrete form provides a support to concrete form such that wet concrete remains inside the form.

In an alternative embodiment, the concrete form comprises a first support member and a second support member, the one or more support devices comprises a first support device, and a third support device, the third support device is arranged at a distance from the first support device, the first support device is arranged to support the first support member of the concrete form and the third support device is arranged to support the second support member of the concrete form.

This reduces a pulling force in the one or more support devices.

In another alternative embodiment, the concrete form comprises a first support member and a second support member, the one or more support devices comprises a first support device, a second support device, a third support device and a fourth support device, the third support device is arranged at a distance from the first support device, the first support device and the second support device are arranged to support the first support member of the concrete form and the third support device and the fourth support device are arranged to support the second support member of the concrete form.

This further reduces a pulling force in the one or more support devices. In a yet another alternative embodiment, the concrete form comprises a first support member and a second support member, the one or more support devices comprises a first support device, a second support device, a third support device and a fourth support device, the third support device is arranged at a distance from the first support device, the first support device and the second support device are arranged to support the first support member of the concrete form and the third support device and the fourth support device are arranged to support the second support member of the concrete form, and the first support member and the second support member extending in a vertical direction.

This further reduces a pulling force in the one or more support devices.

In one embodiment, the system comprises a first gap between the magnet and the outer surface of the ferromagnetic structure, and the first gap being between 0,001 - 2 mm, or the first gap being between 0,001 - 0,1 mm.

The magnet should be close to the ferromagnetic structure for providing a sufficient magnetic force.

In an alternative embodiment, the system comprises a first gap between the magnet and the outer surface of the ferromagnetic structure, and the first gap being less than 2 mm, or the first gap being less than 0,1 mm.

The magnet should be close to the ferromagnetic structure for providing a sufficient magnetic force.

In one embodiment, the concrete form system comprises a load bearing structure and the first end of the ferromagnetic structure is fixed to the load bearing structure.

The load bearing provides a support for the ferromagnetic structure such that the load bearing structure transfers loads from the ferromagnetic structure for instance to a foundation.

In one embodiment, the ferromagnetic structure being a steel beam; or a concrete reinforcement; or a steel tube.

Typically, a concrete reinforcement comprises rebars made of steel so that the rebars are intended to strengthen a solid concrete structure.

In other words, the ferromagnetic structure comprises a steel structure providing a sufficient magnetic force.

In one embodiment, the ferromagnetic structure comprises two or more steel tubes.

In an alternative embodiment, the ferromagnetic structure comprises two or more steel beams.

In another alternative embodiment, the ferromagnetic structure comprises two or more steel pipes, and adjacent the two or more steel pipes are connected to each other.

In some embodiments, the two or more steel pipes connected to each other form a wall.

The ferromagnetic structure is arranged to carry a loads of the concrete form, the one or more support device and wet concrete.

In one embodiment, a first support member and a second support member are made of wooden material, plywood, polymer, steel or aluminium.

In one embodiment, the first support member and the second support comprises a honeycomb structure.

In one embodiment, the first support member and the second support member are made of ferromagnetic material.

In one embodiment, the first support member is made of ferromagnetic material.

In one embodiment, the second support member is made of ferromagnetic material.

In one embodiment, the first support member is made of wooden material and the concrete form system further comprises a first support member stiffener connected to the one or more support devices and the first support member.

In one embodiment, the first support member stiffener is made of ferromagnetic material.

In one embodiment, the second support member is made of wooden material and the concrete form system further comprises a second support member stiffener connected to the one or more support devices and the second support member.

In one embodiment, the first support member stiffener is made of wooden material, plywood, polymer, steel or aluminium.

In one embodiment, the first support member stiffener comprises a honeycomb structure.

In one embodiment, the second support member stiffener is made of wooden material, plywood, polymer, steel or aluminium.

In one embodiment, the second support member stiffener comprises a honeycomb structure.

In one embodiment, the concrete form is made of wooden material, plywood, polymer, steel or aluminium.

In one embodiment, the concrete form comprises a honeycomb structure.

In one embodiment, the concrete form comprises an edge comprising a tongue and groove.

In one embodiment, the second support member stiffener is made of ferromagnetic material.

In one embodiment, the concrete form is arranged to surround the ferromagnetic structure.

In an alternative embodiment, the concrete form is arranged at a distance from the ferromagnetic structure.

In one embodiment, the system comprises concrete inside the concrete form.

In one embodiment, the ferromagnetic structure being a honeycomb structure.

In one embodiment, the concrete form system comprises a lifting device arranged to lift the concrete form.

The lifting device eases lifting up the concrete form when it is needed to cast more concrete above earlier casted concrete.

In an alternative embodiment, the concrete form system comprises a lifting device connected to the one or more support devices and to the concrete form, and the lifting device is arranged to lift the concrete form.

The lifting device eases lifting the concrete form when it is needed to cast more concrete above earlier casted concrete.

In one embodiment, the concrete form system comprises any embodiment of a support device as described above.

The present invention also relates to a method for mounting a concrete form on a ferromagnetic structure. The method being carried out with a concrete form system comprising a ferromagnetic structure having an outer surface of the ferromagnetic structure, a first end of the ferromagnetic structure and a second end of the ferromagnetic structure. The concrete form system further comprising one or more support devices comprising a magnet for attaching the one or more support device on the outer surface of ferromagnetic structure, a housing, a detaching mechanism for detaching the support device from the ferromagnetic structure and a concrete form mounting arrangement arranged to mount a concrete form to the one or more support devices. The concrete form system further comprising a concrete form system comprising a concrete form and a load bearing structure. The first end of the ferromagnetic structure being fixed to the load bearing structure such that the outer surface of the ferromagnetic structure extending in vertical direction

The method comprises:

- attaching one or more support devices on the outer surface of the ferromagnetic structure at a distance from the first end; and

- mounting a concrete form to the concrete form mounting arrangement of the one or more support devices.

In this context vertical direction means a direction having an angle between the direction and the surface of the ground being between 70 degrees to 110 degrees. The surface of the ground is horizontal.

In one embodiment, the one or more support devices comprises a first support device and a second support device, and the step of attaching one or more support devices on the outer surface of the ferromagnetic structure at a distance from the first end comprising attaching the first support device and the second support device on the outer surface of ferromagnetic structure.

This reduces a pulling force in the one or more support devices.

In an alternative embodiment, the concrete form comprises a first support member and a second support member, the one or more support devices comprises a first support device and a second support device, and the step of attaching one or more support devices on the outer surface of the ferromagnetic structure at a distance from the first end comprises attaching the first support device on the outer surface of ferromagnetic structure at a distance from the first end and supporting the second support device on the outer surface of ferromagnetic structure at a distance from the first end, and the step of mounting a concrete form to the one or more support devices comprises mounting the first support member to the first support device and mounting the second support member to the second support device. This further reduces a pulling force in the one or more support devices. In another alternative embodiment, the concrete form comprises a first support member and a second support member, the one or more support devices comprises a first support device a second support device, a third support device and a fourth support device, and the step of attaching one or more support devices on the outer surface of the ferromagnetic structure at a distance from the first end comprises attaching the first support device, and the second support device at a first distance from the first end of the ferromagnetic structure and attaching the third support device and the fourth support device on the outer surface of the ferromagnetic structure at a second distance from the first end of the ferromagnetic structure, and the step of mounting a concrete form to the one or more support devices comprises mounting the first support member to the first support device and to the second support device and mounting the second support member to the third support device and to the fourth support device.

This further reduces a pulling force in the one or more support devices.

In one embodiment, the method further comprises detaching the one or more support devices from the ferromagnetic structure with the detaching mechanism.

In one embodiment, the method is carried out with any embodiment of a concrete form system as described above.

The present invention further relates to use of a magnet in a support device arranged to be attached on an outer surface of a ferromagnetic structure, the outer surface extending in vertical direction and the support device comprises a concrete form mounting arrangement for mounting a concrete form to the support device.

In this context vertical direction means a direction having an angle between the direction and the surface of the ground being between 70 degrees to 110 degrees. The surface of the ground is horizontal.

In one embodiment, the support device is any embodiment of a support device as described above.

In one embodiment, the concrete form system is any embodiment of a concrete form system as described above.

An advantage of the invention is that it enables attaching a concrete form to a vertical ferromagnetic structure with a magnetic force. Furthermore, a position of the concrete form may easily be changed. BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described in detail by means of specific embodiments with reference to the enclosed drawings, in which

Figure 1 shows schematically a side view of a support device according one embodiment to the present invention;

Figure 2 shows schematically an end view of the support device of figure 1;

Figure 3 shows schematically a side view of a detaching mechanism of a support device according to one embodiment of present invention;

Figure 4 shows schematically an end view of the detaching mechanism of figure 3;

Figures 5 - 8 show schematically an end view of a transverse support arrangement of a support device according to different embodiments of present invention;

Figure 9a shows schematically an end view of a concrete form mounting arrangement of a support device according to one embodiment of present invention;

Figure 9b shows schematically an end view of a concrete form mounting arrangement of a support device according to one embodiment of present invention;

Figure 10 shows schematically a side view of a concrete form mounting arrangement of a support device according to one embodiment of present invention;

Figure 11 shows schematically an end view of a movable connection between a concrete form mounting arrangement and a housing of a support device according to one embodiment of present invention;

Figure 12 shows schematically a side view the concrete form mounting arrangement of a support device according to one embodiment of present invention in a first position;

Figure 13 shows schematically a side view the concrete form mounting arrangement of a support device according to one embodiment of present invention in a second position;

Figure 14 shows schematically a front view of a concrete form system according to one embodiment of the present invention;

Figure 15 shows schematically a side view of the concrete form system of figure 14; Figure 16 shows schematically a top view of a concrete form system according to one embodiment of the present invention;

Figure 17 shows schematically a top view of a concrete form system according to one embodiment of the present invention;

Figure 18 shows schematically a front view of a concrete form system according to one embodiment of the present invention, and

Figure 19 shows schematically an end view of a support device according to one embodiment of present invention.

DETAILED DESCRIPTION OF THE INVENTION

Figures 1 and 2 show schematically a side view of a support device 1 according one embodiment to the present invention.

The support device 1 is arranged to support a concrete form 300 on a ferromagnetic structure 200. It should be noted that in this embodiment of the support device 1, the concrete form 300 and the ferromagnetic structure 200 are not parts of the support device 1. The ferromagnetic structure 200 and the concrete form 300 are shown in figures 14 - 18,

The ferromagnetic structure 200 extending in a direction transverse relative to the surface of the ground G. In other words, ferromagnetic structure 200 extending in vertical direction in relative to the surface of the ground G. In this context vertical direction means a direction having an angle between the direction and the surface of the ground G being between 70 degrees to 110 degrees. The surface of the ground G is horizontal. The ferromagnetic structure 200 having an outer surface 201 of the ferromagnetic structure 200.

The support device 1 comprises a support surface 60 arranged to be positioned on the ferromagnetic structure 200.

The support device 1 further comprises a magnet 20 for supporting the support device 1 on the ferromagnetic structure 200. In other words, the support device 1 is supported on the outer surface 201 of the ferromagnetic structure 200 with a magnetic force.

The magnet 20 may be an electromagnet or a permanent magnet.

In a preferred embodiment, the magnet 20 being a permanent magnet.

The support device 1 further comprises a housing 10 arranged to receive the magnet 20.

The magnet may be fixed to the housing for instance with magnet force, with screws or with glue. The support device 1 further comprises a detaching mechanism 30 for detaching the support device 1 from the ferromagnetic structure 200.

In one embodiment, the magnet 20 being a permanent magnet and the detaching mechanism 30 comprises a crowbar 31 arranged to detach the support device 1 from the ferromagnetic structure 200. In other words, the crowbar 31 is arranged to lift an edge of magnet 20 away from the outer surface 201 of the ferromagnetic structure 200.

Alternatively, the magnet 20 being an electromagnet 20 and the detaching mechanism 30 comprises an electric switch arranged to turn off electric power to the magnet 20.

The support device 1 further comprises a concrete form mounting arrangement 40 for mounting a concrete form 300 to the support device 1.

In a preferred embodiment, the concrete form 300 is releasable mounted to the concrete form mounting arrangement 40.

The support device 1 is arranged to carry a tension force T from the concrete form mounting arrangement 40 to the support surface 60, the tension force T being transverse in relative to the support surface 60.

In other words, the support device 1 is arranged to transfer a tension load of the concrete form 300 to the ferromagnetic structure 200. The tension load pulls the concrete form 300 away from the ferromagnetic structure 200 in a direction transverse to the support surface 60.

In one embodiment, the support device 1 comprises a transverse support arrangement 50 arranged to be supported on the outer surface 201 of the ferromagnetic structure 200. The transverse support arrangement 50 extending at a distance from the magnet 20. In other words, the transverse support arrangement 50 is arranged to be supported on a side of the ferromagnetic structure 200. This means that the transverse support arrangement 50 is arranged to be positioned on the ferromagnetic structure 200 for transferring horizontal load to the ferromagnetic structure 200.

Figures 3 and 4 show schematically a detaching mechanism of a support device according to one embodiment of present invention.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of the detaching mechanism 30.

The magnet 20 being permanent magnet 20. The detaching mechanism 30 comprises a crowbar 31 arranged to detach the support device 1 from the ferromagnetic structure 200.

In one embodiment, the detaching mechanism 30 further comprises a detaching part 32, and the crowbar 31 is arranged to detach the support device 1 from the ferromagnetic structure 200 with the detaching part 32.

In one embodiment, the crowbar 31 is arranged to move the detaching part 32 against the ferromagnetic structure 200.

In an alternative embodiment, the crowbar 31 is arranged is arranged to lift an edge of the magnet 20 with lifting the detaching part 32.

In one embodiment, the detaching mechanism 30 further comprises a detaching mechanism hinge 33 between the crowbar 31 and the detaching part 32 and the crowbar 31 is arranged to move the detaching part 32 towards the ferromagnetic structure 200.

In one embodiment, the detaching mechanism 30 further comprises a detaching part support 34 and a detaching opening 35 provided to the detaching part support 34 and a detaching mechanism hinge (3 between the crowbar (31) and the detaching part 32, the crowbar 31 is arranged to move the detaching part 32 towards the ferromagnetic structure 200 relative and the detaching part 32 extends through the detaching opening 35

In one embodiment, the detaching mechanism 30 is connected to the housing 10.

In one embodiment, the detaching mechanism 30 is fixed to the housing 10.

Figure 5 show schematically an end view of a transverse support arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of the transverse support arrangement 50.

In this embodiment, the support device 1 further comprises a transverse support arrangement 50 comprising a support part 52. The support part 52 comprises a first transverse support surface 51 arranged to be supported on the ferromagnetic structure 200. The first transverse support surface 51 being transverse in relative to the support surface 60.

In one embodiment, the support part 52 protruding from the support surface 60 in a direction away from the magnet 20. In one embodiment, the transverse support arrangement 50 further comprises a second support surface 53, and the first support surface 51 and the second support surface 53 are arranged to be positioned on the ferromagnetic structure 200.

In one embodiment, the transverse support arrangement 50 further comprises a second support surface 53, and the first support surface 51 and the second support surface 53 face in opposite directions.

In one embodiment, the first support surface 51 and the second support surface 53 face in opposite directions.

In one embodiment, the first support surface 51 and the second support surface 53 form a support recess 56 arranged to receive the ferromagnetic structure 200.

Figure 6 show schematically an end view of a transverse support arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of the transverse support arrangement 50.

In this embodiment, the support device 1 comprises a transverse support arrangement 50 comprising a support part 52 protruding from the support surface 60 in a direction away from the magnet 20. The support part 52 comprising a first transverse support surface 51 arranged to be supported on the ferromagnetic structure 200. The first transverse support surface 51 being transverse in relative to the support surface 60. The first support surface 51 comprises a curved portion. The support part 52 further comprises a second support surface 53, the first support surface 51 and the second support surface 53 are arranged to be positioned on the ferromagnetic structure 200, and the first support surface 51 and the second support surface 53 face in opposite directions, and the second support surface 53 being circular.

In one embodiment, the support part 52 protruding from the support surface 60 in a direction away from the magnet 20.

Figures 7 show schematically an end view of a transverse support arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of the transverse support arrangement 50. In this embodiment, the support device 1 comprises a transverse support arrangement 50 comprising a support part 52 protruding from the support surface 60 in a direction away from the magnet 20. The support part 52 comprising a first transverse support surface 51 arranged to be supported on the ferromagnetic structure 200. The first transverse support surface 51 being transverse in relative to the support surface 60. The first support surface 51 comprises a curved portion.

In one embodiment, the support part 52 further comprises a second support surface 53, the first support surface 51 and the second support surface 53 are arranged to be positioned on the ferromagnetic structure 200, and the first support surface 51 and the second support surface 53 face in opposite directions, and the second support surface 53 being circular.

It should be noted that the first support surface 51 and the support surface element 60 may be portions of the same arched or curved surface. It should be noted that the second support surface 53 and the support surface element 60 may be portions of the same arched or curved surface.

In one embodiment, the first support surface 51 and the second support surface 53 form a support recess 56 arranged to receive the ferromagnetic structure 200.

In an alternative embodiment, the first support surface 51 forms a support recess 56 arranged to receive the ferromagnetic structure 200.

In one embodiment, the support part 52 protruding from the support surface 60 in a direction away from the magnet 20.

Figures 8 show schematically an end view of a transverse support arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of the transverse support arrangement 50.

In this embodiment, the transverse support arrangement 50 further comprises a distance adjustment arrangement 54 for adjusting a distance between the first support surface 51 and the second support surface 53.

It should be noted that the transverse support arrangement 50 shown in figure 5 may comprise any of the following embodiments of a distance adjustment arrangement 54.

It should be noted that the transverse support arrangement 50 shown in figure 6 may comprise any of the following embodiments of a distance adjustment arrangement 54.

It should be noted that the transverse support arrangement 50 shown in figure 6 may comprise any of the following embodiments of a distance adjustment arrangement 54.

The transverse support arrangement 50 further comprises a distance adjustment arrangement 58 for adjusting a distance between the first support surface 51 and the second support surface 53.

In one embodiment, the support part 52 comprises a first support part portion 58 and a second support part portion 59. The first support part portion 58 having the first support surface 51 and the second support part portion 59 having the second support surface 53. The distance adjustment arrangement 54 is arranged to adjust a distance between the first support part portion 58 and the second support part portion 59.

A distance between the first support part portion 58 and the second support part portion 59 may be adjusted such that a position of the first support part portion 58 is changed. The first support part portion 58 may be connected with screws and there several position for the screws. Alternatively, the first support part portion 58 and the second support part portion 59 are connected with a adjusting bar comprising thread such that a distance between the first support part portion 58 and the second support part portion 59 may changed by turning the adjusting bar.

Figure 9a shows schematically an end view of a concrete form mounting arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of a concrete form mounting arrangement 40.

In this the concrete form mounting arrangement 40 comprises a mounting part 41.

In one embodiment, the mounting part 41 comprises one or more mounting part openings 42 for a screw. In other words, the concrete form 300 may be connected to the concrete form mounting arrangement 40 with screws which penetrates the one or more mounting part openings 42. Typically, the concrete form comprises a wooden support member which is connected to the concrete form mounting arrangement 40. Figure 9b shows schematically an end view of a concrete form mounting arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of a concrete form mounting arrangement 40.

In this embodiment, the concrete form mounting arrangement 40 comprises a mounting surface 49 arranged to mount a ferromagnetic material to the support device 1. In other words, the concrete form 300 comprises a ferromagnetic material such that the concrete form may be mounted to the support device 1 with a magnet force.

Figure 10 shows schematically an end view of a concrete form mounting arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of a concrete form mounting arrangement 40.

The concrete form mounting arrangement 40 comprises a mounting part 41comprising a mounting arrangement recess 43 for receiving a support member of a concrete form 300 and a lock mechanism 44 arranged to lock the support member of the concrete form 300 to the concrete form mounting arrangement 40.

In one embodiment, the lock mechanism 44 comprises an eccentric part 46 and a lock bar 45 connected to the eccentric part 46, the lock bar 45 is arranged to turn the eccentric part 46 against the support member of the concrete form 300.

In other words, the eccentric part 46 is arranged to be pressed on the support member of the concrete form 300.

Figure 11 shows schematically an end view of a concrete form mounting arrangement of a support device according to one embodiment.

It should be noted that the support device 1 shown in figure 1 may comprise any of the following embodiments of a concrete form mounting arrangement 40.

It should be noted that the concrete form mounting arrangement 40 shown in figure 9 may comprises any of following embodiments.

It should be noted that the concrete form mounting arrangement 40 shown in figure 10 may comprises any of following embodiments.

In this embodiment, concrete form mounting arrangement 40 is movable connected to the housing 10. The concrete form mounting arrangement 40 is arranged to be moved between a first position and a second position shown. The concrete form mounting arrangement 40 is arranged to cover at least a part of the detaching mechanism 30 in the first position as shown in figure 12. In the second position the detaching mechanism 30 being exposed as shown in figure 13.

In one embodiment, the support device 1 comprises an extendable connecting part 47 between the housing 10 and the concrete form mounting arrangement 40.

In one embodiment the extendable connecting part 47 comprises an outer connecting tube 471 and an inner connecting bar 472. The inner connecting bar 472 is arranged to slide in an outer connecting tube 471

In one embodiment, the support device 1 comprises a connection clearance 48 between the housing 10 and the concrete form mounting arrangement 40, and the connection clearance 48 being between 0,1 mm to 1 mm. In other words, the smallest distance between the housing 10 and the concrete form mounting arrangement 40 being between 0,1 mm to 1 mm.

Figure 12 shows schematically a side view the concrete form mounting arrangement of a support device according to one embodiment of present invention in a first position.

In the first position, the concrete form mounting arrangement 40 is arranged to cover at least a part of the detaching mechanism 30

Figure 13 shows schematically a side view the concrete form mounting arrangement of a support device according to one embodiment of present invention in a second position.

In the second position the detaching mechanism 30 being exposed.

Figures 14 and 15 show schematically a concrete form system according to one embodiment of the present invention. A concrete form system 100 comprises a ferromagnetic structure 200, the ferromagnetic structure 200 having an outer surface 201 of the ferromagnetic structure 200, the ferromagnetic structure 200 having a first end 202 and a second end 203, the outer surface 201 of the ferromagnetic structure 200 extending in a vertical direction. The concrete form system 100 further comprises one or more support devices 1 comprising a magnet 20 for attaching the one or more support devices 1 on the outer surface 201 of the ferromagnetic structure 200, a housing 10, a detaching mechanism 30 for detaching the one or more support devices 1 from the ferromagnetic structure 200 and a concrete form mounting arrangement 40 arranged to mount a concrete form 300 to the one or more support devices 1. The concrete form system 100 further comprises a concrete form 300 mounted to the one or more support devices 1.

In one embodiment, the concrete form 300 comprises a first support member 301, the one or more support devices 1 comprises a first support device la and a second support device lb, the second support device lb is arranged at a distance from the first support device la, the first support device la and the second support device lb are arranged above the concrete form 300, and the first support device la and the second support device lb are arranged to support the first support member 301 of the concrete form 300.

In an alternative embodiment, the concrete form 300 comprises a first support member 301 and a second support member 302, the one or more support devices 1 comprises a first support device la, and a third support device lc, the third support device lc is arranged at a distance from the first support device la, the first support device la is arranged to support the first support member 301 of the concrete form 300 and the third support device lc is arranged to support the second support member 302 of the concrete form 300.

In another alternative embodiment, the concrete form 300 comprises a first support member 301 and a second support member 302, the one or more support devices 1 comprises a first support device la, a second support device lb, a third support device lc and a fourth support device Id, the third support device lc is arranged at a distance from the first support device la, the first support device la and the second support device lb are arranged to support the first support member 301 of the concrete form 300 and the third support device lc and the fourth support device Id are arranged to support the second support member of the concrete form 300.

In yet alternative embodiment, the concrete form 300 comprises a first support member 301 and a second support member 302, the one or more support devices 1 comprises a first support device la, a second support device lb, a third support device lc and a fourth support device Id, the third support device lc is arranged at a distance from the first support device la, the first support device la and the second support device lb are arranged to support the first support member 301 of the concrete form 300 and the third support device lc and the fourth support device Id are arranged to support the second support member of the concrete form 300, and the first support member 301 and the second support member 302 extending in a vertical direction.

In one embodiment, the concrete form system 100 further comprises a load bearing structure 400 and the first end 202 of the ferromagnetic structure 200 is fixed to the load bearing structure 400.

The load bearing structure 400 may be for instance a concrete or a steel structure having a capacity to carry loads of the ferromagnetic structure 200 and the concrete in the concrete form.

The ferromagnetic structure 200 may be fixed to the load bearing structure 400 for instance with concrete, with welding or with bolts.

In one embodiment, the ferromagnetic structure 200 being a steel beam.

In one embodiment, the ferromagnetic structure 200 being a concrete reinforcement.

In one embodiment, the ferromagnetic structure 200 being a steel tube.

In one embodiment, the ferromagnetic structure 200 comprises two or more steel tubes.

In one embodiment, the ferromagnetic structure 200 comprises two or more steel beams.

In one embodiment, the ferromagnetic structure 200 comprises two or more steel pipes 204, and adjacent the two or more steel pipes 204 are connected to each other.

Figure 16 shows schematically a top view of a concrete form system according to one embodiment.

The system comprises a first gap F between the magnet 20 and the outer surface 201 of the ferromagnetic structure 200. In other words, the first gap F is a smallest distance between the magnet 20 and the outer surface 201 of the ferromagnetic structure 200.

In one embodiment, the first gap F being between 0,001 - 2 mm.

In one embodiment, the first gap F being between 0,001 - 0,1 mm.

In one embodiment, the first gap F being less than 2 mm.

In one embodiment, the first gap F being less than 0,1 mm.

Figure 17 shows schematically a top view of a concrete form system according to one embodiment.

In this embodiment, the ferromagnetic structure 200 comprises two or more steel pipes 204, and adjacent the two or more steel pipes 204 are connected to each other. In one embodiment, the two or more steel pipes being cooling pipes of blast furnace.

Figure 18 shows schematically a front view of a concrete form system according to one embodiment of the present invention.

In one embodiment, the concrete form system 100 comprises a lifting device 500 arranged to lift the concrete form 300.

In one embodiment, the lifting device 500 is connected to the one or more support device 1 and to the concrete form 30.

In one embodiment, the lifting device 500 comprises a lifting cable 501 and a lifting winch 503.

In one embodiment, the lifting device 500 comprises a lifting support 502 for mounting the lifting winch 503.

In one embodiment, the lifting cable 501 is connected to the concrete form 300 and to the lifting winch 503.

In one embodiment, the first support member 301 is made of wooden material and the concrete form system 100 further comprises a first support member stiffener 311 connected to the one or more support devices 1 and the first support member 301.

In one embodiment, the first support member stiffener 311 is made of ferromagnetic material.

In one embodiment, the second support member 302 is made of wooden material and the concrete form system 100 further comprises a second support member stiffener 312 connected to the one or more support devices 1 and the second support member 302.

In one embodiment, the second support member stiffener 312 is made of ferromagnetic material.

Figures 19 shows schematically an end view of a support device according to one embodiment.

It should be noted that the support device 1 shown in any of figures 1 - 18 may comprise any of the following embodiments of the support device.

In the embodiment shown in figure 19, the magnet 20 comprises a first magnet element 1201 and a second magnet element 1202.

In some embodiments, the support surface 60 comprises a first support surface element 1601 and a second support surface element 1602.

The first support surface element 1601 is arranged to be supported on a first element of the ferromagnetic structure 200, and the second support surface element 1602 on a second element of the ferromagnetic structure 200. In other words, the ferromagnetic structure 200 comprises two or more ferromagnetic elements extending in the vertical direction.

In some embodiments, the support device 1 comprises a transverse support arrangement 50 comprising one or more support parts 52 or a support part 52 protruding from the first support surface element 1601 and from the second support surface element 1602 in a direction away from the first magnet element 1201 and the second magnet element 1202.

In other words, the support device 1 may comprise more than one support parts 52 protruding from the first support surface element 1601 and from the second support surface element 1602.

The one or more support parts 52 or the support part 52 comprises a first transverse support surface 1511 arranged to be supported on the ferromagnetic structure 200. The first transverse support surface 1511 being transverse in relative to the first support surface element 1601. It should be noted that the first transverse support surface 1511 and the first support surface element 1601 may be portions of the same arched or curved surface.

The one or more support parts 52 or the support part 52 comprises a second transverse support surface 1531 arranged to be supported on the ferromagnetic structure 200. The second transverse support surface 1531 being transverse in relative to the first support surface element 1601. It should be noted that the second transverse support surface 1531 and the first support surface element 1601 may be portions of the same arched or curved surface.

In some embodiments, the one or more support parts 52 or the support part 52 comprises a third transverse support surface 1512 arranged to be supported on the ferromagnetic structure 200. The third transverse support surface 1512 being transverse in relative to the second support surface element 1602. It should be noted that the third transverse support surface 1512 and the second support surface element 1602 may be portions of the same arched or curved surface.

In some embodiments, the one or more support parts 52 or the support part 52 comprises a fourth transverse support surface 1532 arranged to be supported on the ferromagnetic structure 200. The fourth transverse support surface 1532 being transverse in relative to the second support surface element 1602. It should be noted that the fourth transverse support surface 1532 and the second support surface element 1602 may be portions of the same arched or curved surface.

In some embodiments, the one or more support parts 52 or the support part 52 comprises a first support recess 1561 arranged to receive the first element of the ferromagnetic structure 200 and the one or more support parts 52 or the support part 52 further comprises a second support recess 1562 arranged to receive the second element of the ferromagnetic structure 200.

The present invention further provides a method for mounting a concrete form 300 on a ferromagnetic structure 200.

The method being carried out with a concrete form system 100 comprising a concrete form 300; a ferromagnetic structure 200 having an outer surface 201 of the ferromagnetic structure 200, a first end 202 of the ferromagnetic structure 200 and a second end 203 of the ferromagnetic structure 200; one or more support devices 1 comprising a magnet 20 for attaching the one or more support device 1 on the outer surface 201 of ferromagnetic structure 200, a housing 10, a detaching mechanism 30 for detaching the support device 1 from the ferromagnetic structure 200 and a concrete form mounting arrangement 40 arranged to mount a concrete form 300 to the one or more support devices 1 and a load bearing structure 400. The first end 202 of the ferromagnetic structure 200 being fixed to the load bearing structure 400 such that the outer surface 201 of the ferromagnetic structure 200 extending in vertical direction

The method comprises:

- attaching one or more support devices 1 on the outer surface 201 of the ferromagnetic structure 200 at a distance from the first end 202; and

- mounting a concrete form 300 to the concrete form mounting arrangement 40 of the one or more support devices 1.

In one embodiment, the one or more support devices 1 comprises a first support device la and a second support device lb, and the step of attaching one or more support devices 1 on the outer surface 201 of the ferromagnetic structure 200 at a distance from the first end 202 comprising attaching the first support device la and the second support device lb on the outer surface 201 of ferromagnetic structure 200.

In one embodiment, the concrete form 300 comprises a first support member 301 and a second support member 302, the one or more support devices 1 comprises a first support device la and a second support device lb, and the step of attaching one or more support devices 1 on the outer surface 201 of the ferromagnetic structure 200 at a distance from the first end 202 comprises attaching the first support device la on the outer surface 201 of ferromagnetic structure 200 at a distance from the first end 202 and supporting the second support device lb on the outer surface 201 of ferromagnetic structure 200 at a distance from the first end 202, and the step of mounting a concrete form 300 to the one or more support devices 1 comprises mounting the first support member

301 to the first support device la and mounting the second support member 302 to the second support device lb.

In one embodiment, the concrete form 300 comprises a first support member 301 and a second support member 302, the one or more support devices 1 comprises a first support device la a second support device lb, a third support device lc and a fourth support device Id, and the step of attaching one or more support devices 1 on the outer surface 201 of the ferromagnetic structure 200 at a distance from the first end 202 comprises attaching the first support device la, and the second support device lb at a first distance from the first end 202 of the ferromagnetic structure 200 and attaching the third support device lc and the fourth support device Id on the outer surface 201 of the ferromagnetic structure 200 at a second distance from the first end 202 of the ferromagnetic structure 200, and the step of mounting a concrete form 300 to the one or more support devices 1 comprises mounting the first support member 301 to the first support device la and to the second support device lb and mounting the second support member

302 to the third support device lc and to the fourth support device Id.

In one embodiment, the method further comprises detaching the one or more support devices 1 from the ferromagnetic structure 200 with the detaching mechanism 30.

The method may be carried out with any of above disclosed embodiment of a concrete form system 100.

The method may be carried out with any of above disclosed embodiment of a support device 1.

The present invention further relates to a use of a magnet 20 in a support device 1 arranged to be attached on an outer surface 201 of a ferromagnetic structure 200, the outer surface 201 extending in vertical direction and the support device 1 comprises a concrete form mounting arrangement 40 for mounting a concrete form 300 to the support device 1. In this context vertical direction means a direction having an angle between the direction and the surface of the ground G being between 70 degrees to 110 degrees.

In the context of this patent application a vertical direction means a direction having an angle between the surface of the ground G such that the angle being between 70 degrees to 110 degrees. In other words, the vertical direction means an upright position having an inclination between 0 to 20 degrees.

In one embodiment, the support device 1 being any of above disclosed embodiment of a support device 1.

The invention has been described above with reference to the examples shown in the figures. However, the invention is in no way restricted to the above examples but may vary within the scope of the claims.