Squeegee with selectable rotation mode

DESCRIPTION Field of the invention

The present invention relates to the field of surface cleaning tools.

In particular, the invention relates to a squeegee with a joint capable of allowing different rotation modes. Description of the prior art

Squeegee are known which comprise different rotation mechanisms between the handle and the cleaning blade, in order to facilitate the use and adapt the position of the cleaning blade to different phases of cleaning a glass or other similar surface.

In addition to allow the blocking of the cleaning blade according to a certain angle of rotation with respect to the handle, these rotation mechanisms can allow the operator to use the squeegee in the "swivel" mode, i.e. with a free rotation between the cleaning blade and the handle that allows to speed up the sweeping of the glass according to variable directions .

An example is shown in BE1024299, which describes a squeegee comprising a handle and a cleaning body rotatable around a first rotation axis, to work in "swivel" mode. Furthermore, the cleaning body can be locked in at least two positions .

However, this "swivel" mode can be difficult for an inexperienced user to use, as it can cause the blade to jam when it is parallel to the handle, greatly slowing down the cleaning operation.

There are known mechanisms in the prior art which allow to constrain this rotation not to exceed 90°. However, these systems, unlike those mentioned above, do not allow the blade to be placed parallel to the handle, an essential position for cleaning at a great distance from the operator.

Furthermore, there is a need for a system that allows you to choose the blade rotation mode to adapt to the various cleaning phases. Summary of the invention

It is therefore a feature of the present invention to provide a cleaning device surfaces which allows to choose the mode of rotation of the blade to adapt to the various cleaning phases, even in the case of use by a non-expert user.

These and other objects are achieved by a cleaning device according to claim 1.

Further aspects of the present invention are described in the claims from 2 to 9.

Brief description of the drawings Further characteristic and/or advantages of the present invention are more bright with the following description of an exemplary embodiment thereof, exemplifying but not limitative, with reference to the attached drawings in which:

— Fig. 1A shows, in top view, an exemplary embodiment of the cleaning device according to the present invention;

— Fig. IB shows, in side view, the cleaning device Fig. 1A;

— Fig. 2A shows, in detail, a possible exemplary embodiment of the first selection mechanism when the first pivotal constraint is in the locked rotation mode;

— Fig. 2B shows an exemplary embodiment of the first selection mechanism of Fig. 1A when the first pivotal constraint is in the constrained rotation mode ;

— Fig. 2C shows an exemplary embodiment of the first selection mechanism of Fig. 1A when the first pivotal constraint is in the free rotation mode;

— Figs. 3A, 3B and 3C schematically show a possible exemplary embodiment of the first selection mechanism with the crown and the selector, respectively, in the relative positions P _lf P ₂ and

/¾; Figs. 4A and 4B show, respectively in top and front view, a possible alternative of the first selection mechanism;

— Fig. 5 shows an exemplary embodiment of the cleaning device of Figs. 1A and IB, in the constrained rotation mode.

Description of a preferred exemplary embodiment

With reference to Figs. 1A and IB, the cleaning device 100 comprises a handle 110, for the grip of the cleaning device 100 by a user, and a cleaning body 120 comprising a blade arranged to wipe a surface, in particular a glass.

The cleaning device 100 also comprises a first pivotal constraint 130 arranged to allow a relative rotation a between the handle 110 and the cleaning body 120 about a first rotation axis x orthogonal to the cleaning plane p defined by the cleaning body 120.

The cleaning device 100 comprises then a second pivotal constraint 140 arranged to allow a relative rotation b between the handle 110 and the cleaning body 120 about a second rotation axis y parallel to the cleaning plane n.

With reference even at Figs. 2A, 2B and 2C, the cleaning device 100 comprises then a first selection mechanism 150 arranged to make the first pivotal constraint 130 to switch between :

a free rotation mode, where the handle 110 and the cleaning body 120 can rotate freely to each other with respect to the first rotation axis x [Fig. 2C ] ;

— a locked rotation mode, wherein said handle 110 and said cleaning body 120 cannot rotate to each other with respect to said first rotation axis x [Fig. 2A] ;

— a constrained rotation mode, where the relative rotation a has a maximum value equal to a predetermined value a [Fig. 2B] .

Such value a can be for example of 90°.

The selection mechanism 150 can be operated by the user by the button 150', visible in Fig. 1A.

In particular, the selection mechanism 150 comprises a crown 159 that has at least two distant teeth 151 and two close teeth 152, and a selector 155. The selector 155 is adapted to carry out a relative translation, in particular in a radial direction with respect to the crown 159, to switch between 3 mode of rotation, due to the translation of the button 150' .

In particular, in Fig. 2A the selector 155 is in the position P ₂ where the selector 155 is at a minimum distance d _min with respect to the centre c of the crown 159 and is blocked between two close teeth 152. This way, the first pivotal constraint 130 is in the locked rotation mode. Such mode can be used for blocking the relative rotation a at different relative angles between the handle 110 and the cleaning body 120, from the angle wherein handle 110 and cleaning body 120 are orthogonal to the angle wherein they are parallel to each other.

In Fig. 2B the selector 155 is in the position P ₃ where the selector 155 is at an intermediate distance d _med with respect to the centre c of the crown 159 and, during the relative rotation a, can meet only the two distant teeth 151. This way, the first pivotal constraint 130 is in the constrained rotation mode.

In this mode it is possible to use the cleaning device 100 in the "swivel" mode preventing the jamming of the blade of the cleaning body 120 even by an inexperienced operator.

In Fig. 2C the selector 155 is in the position P ₁ where the selector 155 is at a maximum distance d _max with respect to the centre c of the crown 159 and, during the relative rotation a, cannot meet neither a distant tooth 151 nor a close tooth 152. This way, the first pivotal constraint 130 is in the free rotation mode.

This mode, in addition to allow use the cleaning device 100 in the "swivel" mode, allows the user to switch between the constrained mode and the blocked mode, or to block the rotation at different angles between the handle 110 and the cleaning body 120; Figs. 3A, 3B and 3C schematically show the operation of a possible exemplary embodiment of the selection mechanism 150 similar to that of Figs. 2A, 2B and 2C.

In particular, in Fig. 3A the first pivotal constraint 130 is in the locked rotation mode with the selector 155 blocked between the internal close teeth 152 and, therefore, with the handle 110 and the cleaning body orthogonal to each other .

In Fig. 3B the first pivotal constraint 130 is in the constrained rotation mode with the selector 155 free to slide between the distant teeth 151 during the relative rotation a .

In Fig. 3C the first pivotal constraint 130 is in the locked rotation mode with the selector 155 blocked between the external close teeth 152' and, therefore, with the handle 110 and the cleaning body parallel to each other.

In the figures 4A and 4B it is shown a possible alternative of the first selection mechanism 150, wherein the crown 159 may have 3 planes 159a, 159b and 159c on which the teeth 151, 152 and 152' can be arranged in different possible combinations .

For example, the distant teeth 151 and the external close teeth 152' can be arranged in the plane 159a, whereas the close teeth inner 152 can be arranged in the plane 159b. This way, by making the selector 155 move axially, it is possible to move it between one plane and another, allowing the first pivotal constraint 130 to pass between the aforementioned rotation modes .

The plane 159c, not including teeth, can be used both for free rotation, and for making the selector 155 to pass between the position blocked between the internal close teeth 152 and that one blocked between the external close teeth 152'. Such plane 159c may also not be present.

Although not shown in the figure for simplicity, all the various embodiments which make use of teeth arranged on at least two planes of the crown 159 are covered by figures 4A and 4B, allowing the selector 155 to move both in the axial and radial position with respect to the crown itself.

The foregoing description some exemplary specific embodiments will so fully reveal the invention according to the conceptual point of view, so that others, by applying current knowledge, will be able to modify and/or adapt in various applications the specific exemplary embodiments without further research and without parting from the invention, and, accordingly, it is meant that such adaptations and modifications will have to be considered as equivalent to the specific embodiments. The means and the materials to realise the different functions described herein could have a different nature without, for this reason, departing from the field of the invention, it is to be understood that the phraseology or terminology that is employed herein is for the purpose of description and not of limitation .