Specification

The present invention relates generally to a support system for raised floors. In particular, it relates to a support system for raised floors which is quickly and easily adjustable in height.

As is well known, raised floors are suspended flooring systems in which the walking surface rests on a structure raised above the ground, usually made of suspended modular elements. Between the bottom and the walking surface there is a technical compartment that can be inspected, for example for the passage of cables.

The floor level must be placed at a height above the floor, which may vary from case to case, depending on the different requirements of the environment in which the floor is being laid and the dimensions of the technical compartment to be obtained.

Consequently, it is often necessary to vary the height of the flooring from site to site.

For this purpose, adjustable support systems have been introduced that allow the height of the floor to be varied from the bottom according to the different needs of the individual construction site.

However, these adjustable support systems are impractical, as they take time to adjust.

In addition, such support systems do not allow rapid identification of the height to which the support has been set.

The aim of the invention is, therefore, to realise a support system for raised floors which overcomes the problems of the known technique. A further scope of the invention is to provide a raised floor support system that is adjustable in a practical and fast manner.

A further purpose of the invention is to provide a raised floor support system that allows immediate identification of the height to which the support system itself has been adjusted.

According to the invention, all purposes and more are achieved by a support system for creating raised floors with a walking surface spaced apart from a base, comprising a lower rotor capable of resting on the base, and an upper rotor capable of resting above the lower rotor.

In particular, the support system is characterised in that the lower rotor comprises a spiral profile on which an upper inclined plane is defined, and the upper rotor comprises a spiral element on which a lower inclined plane is defined.

The upper inclined plane rests on the lower inclined plane, so that as the upper rotor rotates relative to the lower rotor, the upper rotor is raised or lowered relative to the lower rotor depending on the direction of rotation.

Thanks to this conformation of the two rotors, a relative rotation of the two rotors is sufficient to vary the height, i.e. the thickness created by the two rotors together on top of each other.

Advantageously, the bottom rotor may comprise a central cylindrical body that fits into a central hole in the top rotor, thus ensuring perfect coaxiality of the bottom rotor with the top rotor.

In addition, the lower rotor may comprise a protruding element suitable for being grasped to ensure an optimal grip of the lower rotor itself.

An end hole may be defined in the protruding element into which a user may insert their finger to improve grip. Similarly, the upper rotor may comprise protruding bodies to provide a grip for the upper rotor itself.

Advantageously, the protruding bodies may be angularly equidistant from each other, so as to improve grip and rotation measurement for the user.

Furthermore, in order to have a clear idea of the height defined once the two rotors have been rotated together, there may be markings on the upper rotor identifying various measures of the height obtainable from the upper rotor with respect to the lower rotor, and a point may protrude radially from the lower rotor to identify the marking on the upper rotor corresponding to the actual height achieved.

Advantageously, the support system may comprise a connecting plate arranged to rest on the upper rotor and to allow the arrangement of the elements making up the walking surface.

Further, the support system may comprise an extension plate arranged between the base plate and the lower rotor, so as to raise the lower rotor by a height equal to the thickness of the extension plate.

Advantageously, through-holes for draining water or other liquids may be provided in the lower rotor and/or the upper rotor.

Further features and details of the invention may be better understood from the following description, given by way of non-limiting example, as well as from the accompanying drawing plates, wherein: figure 1 is an axonometric view of a support system according to the invention; figure 2 is an exploded axonometric view of the support system of figure 1 ; figure 3 is a side sectional view of the support system of figure 1 ;

Figure 4 is a view of a detail of figure 3, indicated by E; Figure 5 is a top view of a first element of the figure 1 support system; figure 6 is a side view of the element of figure 5 in section in the plane A-A;

Figure 7 is a top view of a second element of the support system of figure 1 ;

Figure 8 is a side view of the element of figure 7 in section according to the plane B-B;

With reference to the appended figures, in particular figures 1 to 3, 10 indicates a support system according to the invention for creating raised floors, so as to arrange a walking surface formed by wooden tiles or battens at a height from the base.

According to the embodiment illustrated herein, the support system 10 comprises:

- a lower rotor 12

- an upper rotor 14 suitable for being supported above the lower rotor 12;

- a connection plate 16, supported at the top of the upper rotor 14;

- a first extension plate 18, positioned inferiorly to the lower rotor 12;

- a second extension plate 20, arranged inferiorly to the first extension plate 18 and suitable for resting on a reference ground.

The lower rotor 12 comprises a base disc 22 defined perimeterally by an edge 26 and having a central cylindrical body 24.

From the base disc 22 radially protrudes a projecting element 28 in which an end hole 29 is formed. A point 31 protrudes from the opposite side of the protruding element 28.

From the base disc 22 there protrudes vertically upwards a spiral profile 30 on which an upper inclined plane 32 is defined.

In the central part and in the peripheral part of the base disc 22, arcuate openings 23 are obtained through which water may be discharged.

The upper rotor 14 comprises an outer ring 34 from which radially projecting bodies 36 protrude at an angle equidistant from each other.

From the outer ring 34 starts a spiral element 38 on which a lower inclined plane 40 is defined.

The upper rotor 14 centrally comprises an annular support 42 with a central hole 44.

On the annular support 42 of the upper rotor 14 rests the connecting plate 16 which includes a vertical fin 17 and is suitable to allow coupling with tiles or wooden boards or with a support frame.

The spiral element 38 is also rigidly fixed to the outer ring 34 and the annular support 42 by means of radial elements 39.

In the lower portion of the spiral element 38, in correspondence with the radial elements 39, holes 41 are provided for the passage of any water.

The upper rotor 14 is supported on top of the lower rotor 12, so that the central cylindrical body 24 fits into the central hole 44.

Furthermore, the lower inclined plane 40 of the spiral element 38 of the upper rotor 14 rests on the upper inclined plane 32 of the spiral profile 30 of the lower rotor 12, as illustrated by figure 3.

By rotating the upper rotor 14 relative to the lower rotor 12 in a clockwise direction, the lower inclined plane 40 of the spiral element 38 slides on the upper inclined plane 32 of the spiral profile 30 and thus forces the upper rotor 14 to rise relative to the lower rotor 12.

The rotation of the two rotors 12, 14 is easily carried out by an operator who can, with one hand, lock the lower rotor 12 in position, grasping it by means of the protruding element 28, inserting a finger in the relative terminal hole 29, and with the other hand grasp and turn the upper rotor 14 by gripping the protruding bodies 36.

On the upper rotor 14, specifically on the outer ring 34, there are markings identifying various measures of the height to which the upper rotor 14 is brought in relation to the lower rotor 12.

The height actually reached is indicated by the tip 31 of the lower rotor 12 in correspondence to the corresponding inscription shown on the upper rotor 14.

The first extension plate 18 and the second extension plate 20 are optional and are used to raise the lower rotor 12 and thus the upper rotor 14 to a greater height.

A different element can be used as an alternative to the connecting plate 16, depending on the type of flooring to be installed.

There are snap-on mechanisms for coupling the lower rotor 12 to the upper rotor 14, the connecting plate 16 to the upper rotor 14, the first extension plate 18 to the lower rotor 12, and between the extension plates 18, 20.

Further variants and embodiments other than those illustrated above are possible and are to be considered within the scope of protection defined by the appended claims.

For example, the elements for gripping the two rotors can be of different conformation, as can the indications of the heights reached.