WO2022034000A1

WO2022034000A1 - Device for aiding in the cutting of cladding in the form of a reel, and vehicle comprising such a device

Info

Publication number: WO2022034000A1
Application number: PCT/EP2021/072116
Authority: WO
Inventors: Luc Barbier; Thierry Barbier
Original assignee: Luc Barbier; Thierry Barbier
Priority date: 2020-08-11
Filing date: 2021-08-09
Publication date: 2022-02-17
Also published as: EP4178896A1

Abstract

A device (10) for aiding in the cutting of a reel of cladding (105), along a cutting axis (100), which comprises: - a flat bed (101) for receiving at least one reel of cladding and provided with: - wheels (106, 107) by means of which a reel can move along a direction parallel to the cutting axis; - means (108) for inclining the wheels, by means of which a wheel (106) can be inclined in order to make it easier for the reel of cladding to pass over said wheel; and - means (109) for locking the inclination of the wheels; - a drawer (110) that is able to move in translation relative to the flat bed, comprising at least two rollers (112, 113) that are arranged so as to receive the reel of cladding after it has moved over each pair of wheels.

Description

TITLE: COIL CUTTING AID DEVICE AND VEHICLE COMPRISING SUCH A DEVICE

Technical field of the invention

The present invention relates to a coating cutting aid device in the form of a coil and a vehicle comprising such a device. It applies, in particular, to the cutting of swimming pool coatings such as liner or polyvinyl chloride (acronym “PVC”) which can be reinforced. The present invention also relates to a device for laying a strip on a covering, a device for motorized winding of a covering comprising such a device and a kit comprising such a laying device. It applies, in particular, to the laying of strips on swimming pool coatings such as liner or polyvinyl chloride (acronym “PVC”) which can be reinforced. The present invention also relates to a device for unwinding a coating in the form of a coil against a peripheral wall of a swimming pool. It applies, in particular, to the handling, positioning and installation of coating, for example liner or polyvinyl chloride (acronym "PVC") which can be reinforced, on the peripheral walls of swimming pools.

State of the art

Swimming pool coatings, for example liner or polyvinyl chloride, are presented in the form of reels. These coils can weigh several tens of kilograms and represent a length between the two ends of the coil of between one and two meters. This size makes the reel difficult to handle, especially when it is necessary to cut the coating to the dimensions of the pool to be coated or when it is necessary to position the coating in a vehicle. In addition, to cut the coating, the swimming pool specialists must unroll the coating on the ground, grains, pebbles and impurities then clinging to it. Since the cutting is then carried out directly on the ground, problems arise for cutting the coating perpendicular to the edges of the coil. The liner does not then have the right dimensions and must be re-cut at the time of installation. This tedious work represents a waste of time for swimming pool specialists.

In addition, liner strips are necessary to create a grip between the liner and the wall of a swimming pool. Currently, a liner is unrolled on the floor, the strip is positioned against the edge of the liner, then an operator passes with a hot air gun to weld the strip to the liner. The work carried out is therefore imperfect, in particular because impurities may have been introduced between the strip and the coating or even because the operator moves more or less away from the strip or remains more or less long in one place of the strip, creating welds of varying resistance. In addition, the strip may not be in position against the edge of the coating, then creating folds or roughness visible on the coating once laid.

Finally, swimming pool coatings, for example liner or polyvinyl chloride, are presented in the form of reels. These reels can weigh several tens of kilograms and represent a length between the two ends of the reel between one and two meters. This size makes the reel difficult to handle, especially when the coating has to be unrolled in order to lay it against a peripheral wall of the swimming pool to be coated. In addition, the liner has a strip welded to the liner that must be inserted into a groove on the pool wall. It is therefore difficult to manipulate the reel of coating to simultaneously unroll the coating and introduce the strip into the groove.

Presentation of the invention

The present invention aims to remedy all or part of these drawbacks. In particular, the present invention makes it possible to cut coatings without impurities clinging to them and by limiting the efforts of the operators.

To this end, according to a first aspect, the present invention relates to a coating cutting aid device in the form of a coil, a device which has a cutting axis and comprises:

- a plate having a plane for receiving at least one coating roll whose axis is parallel to the cutting axis, the plate being provided with:

- at least one pair of rollers, allowing a reel to move in a direction parallel to the cutting axis, a mobile axis of rotation perpendicular to the cutting axis when the rollers are in the locked position,

- tilting means for each pair of rollers, the tilting means having an axis of rotation parallel to the cutting axis allowing to tilt one roller of each pair of rollers to facilitate the crossing of said roller by the coil coating and

- Means for locking the inclination of the set of wheels in the locked position; and

- a drawer in translation relative to the plate along an axis parallel to the cutting axis, comprising at least two unwinding rollers with axes parallel to the cutting axis arranged to receive the coating reel after its displacement on each pair rollers, so that the coating can unroll while being held laterally by the rollers to be cut parallel to the cutting axis.

Thanks to these provisions, several coatings can be stored on the tray. The movement of the coatings is facilitated for the operator thanks to the wheels and rollers. Finally, the unwinding of the coating reel is facilitated thanks to the unwinding rollers and the cutting can be carried out on the drawer with no impurities.

In some embodiments, the cutting aid device further comprises a slot along the cutting axis to guide a blade during cutting. These embodiments make it possible to guide the blade along an axis perpendicular to the edges of the unrolled covering, the position of which is controlled thanks to the unwinding rollers.

In some embodiments, the object device for aiding cutting further comprises a means for winding the unrolled covering arranged on the drawer, the winding means and the at least two unwinding rollers being arranged on either side. and sides of the slot.

Such winding means make it possible to facilitate the unwinding of the covering before it is cut, then to roll up the cut covering for its subsequent movement.

In some embodiments, the cutting aid object device further comprises an arm switchable between a drive position of the winding means and a drive position of the reel positioned on the unwinding rollers. Thanks to these provisions, the reel of cut coating can easily be recut, measured or undergo a particular treatment such as the application of a strip.

In embodiments, the winding means and the arm have driving reliefs in mechanical correspondence. These embodiments make it possible to ensure the rotation of the winding means by the arm.

In embodiments, the winding means comprises a motor for rotating a reel and a motor actuating pedal configured to be actuated by the foot of an operator. These embodiments allow the operator to have his hands free when the winding is carried out, to apply a treatment to the coating, such as the application of a strip.

In embodiments, the drawer includes an odometer rotating along an axis parallel to the cutting axis to measure a distance of unrolled coating.

The advantage of an odometer is to precisely measure the distance of the unrolled coating to be able to cut the coating precisely according to the measurements of the pool.

In embodiments, the drawer comprises a level and a means for adjusting the horizontality of the drawer. These embodiments allow the liner to be cut horizontally to ensure the angle of the cut relative to the edges of the liner.

In some embodiments, the cutting aid object device comprises means for attaching at least one strap to hold a reel of coating in place on the plate. Thanks to provisions, the movement of the reels of coating on the plate during transport is avoided.

In some embodiments, the cutting aid object device further comprises a removable handle for actuating the tilting means. These embodiments make it possible to create a lever arm to tilt the rollers while limiting the efforts for the operator.

In some embodiments, the cutting aid object device further comprises a hot air gun facing an edge of the unrolled coating to weld a strip to the unrolled coating. Thanks to these provisions, the coating already has the strip before being wound on the winding means. The installation of the coating against a vertical wall of a swimming pool is then facilitated for the operator.

According to a second aspect, the present invention relates to a vehicle comprising a cutting aid device, for example in a trailer or in a trunk.

The aims, advantages and particular characteristics of the vehicle which is the subject of the invention being similar to those of the device which is the subject of the invention, they are not repeated here.

According to a third aspect, the present invention relates to the use of a cutting aid device for cutting a coating in the form of a coil. The aims, advantages and particular characteristics of this method of use being similar to those of the cutting aid device which is the subject of the invention, they are not repeated here.

According to a fourth aspect, the present invention relates to a device for laying a strip on an edge of a covering, which comprises:

- a support for a reel of strip, - mechanical fixing with a hot air gun for welding the strip to the coating,

- a strip guide to position the strip first facing the hot air gun then resting on the edge of the covering and

- a positioning stop of the strip guide relative to the edge of the coating to superimpose the strip with the coating, the strip welded to the coating having an L profile. Thanks to these provisions, replacement of the strip against the edge of the coating is controlled thanks to the positioning stop. In addition, the strip is unrolled and placed automatically. Finally, the hot air gun is at a constant distance from the strip for uniform heating of the strip during welding. More specifically, the aim is to facilitate the installation of a strip on a swimming pool coating and to make the weld between the strip and the coating homogeneous over the entire length of the weld.

In some embodiments, the laying object device further comprises a means for crushing the strip against the coating to stretch and unroll the strip. These embodiments make it possible to stretch the strip against the coating for better welding homogeneity. In some embodiments, the crushing means comprises means for adjusting the tension of the tape. Thanks to these provisions, the installed strip is stretched to the right value without creating folds or roughness in the coating.

In some embodiments, the crushing means comprises two flat surfaces facing each other between which the strip and the superposed coating are positioned. These embodiments make it possible to properly align the strip against the edge of the coating.

In some embodiments, the positioning device comprises means for adjusting the position of the positioning stop relative to the guide. These embodiments make it possible to adapt the location of the stop to the dimensions of the strip.

In some embodiments, the laying object device comprises means for controlling the heating temperature of the strip.

The advantage of such a control means is to adapt the heating temperature to the thickness and to the material of the strip.

In some embodiments, the laying object device comprises means for matching the heating temperature and the speed of relative movement between the device and the coating.

In some embodiments, the laying object device comprises a means for controlling the heating temperature to the speed of relative movement between the device and the coating.

In some embodiments, the laying object device comprises a means for controlling the speed of relative movement between the device and the coating at the heating temperature. These control means constitute two examples of means for matching the heating temperature and the speed of relative movement between the device and the coating.

Thanks to each of these arrangements, the strip is heated in a homogeneous manner, regardless of the speed of movement of the device relative to the coating.

According to a fifth aspect, the present invention relates to a device for motorized rolling up of a covering comprising a device for applying a strip which is the subject of the invention. Goals, advantages and particular characteristics of this motorized winding device being similar to those of the laying device which is the subject of the invention, they are not repeated here.

According to a sixth aspect, the present invention relates to a kit comprising a device for placing a strip on an edge of a covering and a hot air gun. The aims, advantages and particular characteristics of this kit being similar to those of the installation device which is the subject of the invention, they are not repeated here.

According to a seventh aspect, the present invention relates to a device for unrolling a coating in the form of a coil against a peripheral wall of a swimming pool, which comprises:

- a frame provided with a support for a reel of coating, the support being free to rotate relative to the frame along an axis called the "unwinding axis" parallel to a side face of the wall,

- a first set of at least two rollers with axes of rotation parallel to the axis of unwinding to roll the frame against the side face of the wall and

- a second set of at least two rollers with rotation axes perpendicular to the side face of the wall to roll the frame on an upper face of the wall.

Thanks to these provisions, the coil is placed on the frame which is pressed against and on the peripheral wall. The weight of the reel and the device keeps the sets of casters leaning against and on the wall. The device can roll against the side face of the wall to move the spool of liner to where the liner is to be unrolled and laid.

In particular, the aim is to facilitate the movement and unwinding of a reel of coating against a peripheral wall of a swimming pool.

In some embodiments, the second set of at least two rollers is mounted on a mobile frame in translation relative to the frame along an axis parallel to the unwinding axis. These embodiments make it possible to adjust the position of the second set of rollers to adapt it to the dimensions of the peripheral wall.

In some embodiments, the movable armature comprises means for locking the position of the movable armature relative to the frame. The advantage of the locking means is to be able to fix the position of the movable armature relative to the frame once the adjustment has been made.

In some embodiments, the reel support comprises a first relief around which is positioned one end of the reel and a second relief that is movable relative to the frame and fits together with another end of the reel. These embodiments make it possible to adapt the dimension between the two reliefs of the coil support to the dimensions of the coil.

In some embodiments, the second relief comprises means for displaying the position of the second relief relative to said other end of the coil.

The advantage of these embodiments is to facilitate the visualization of the location of said other end relative to the support to set up the second relief.

In some embodiments, the unwinding object device comprises means for adapting to a dimension between the ends of the reel, the difference between the first relief and the second relief. Thanks to these provisions, the device is adaptable to the various coils known to those skilled in the art. In embodiments, the frame comprises at least one handle for moving the frame relative to the wall. These embodiments facilitate the handling of the device.

In some embodiments, the unwinding device further comprises at least a third set of at least two rollers, axes of rotation parallel to the unwinding axis, supporting the reel to facilitate in rotation of the spool along the unwinding axis. Thanks to these provisions, the reel is positioned in abutment against the set of rollers and the coating unrolls more easily.

In embodiments, at least two rollers of the third set of rollers are mounted on shafts with parallel axes, the shafts being connected by a compression spring. These embodiments make it possible to keep the rollers bearing against the reel despite the reduction in diameter due to the unwinding of the coating.

Brief description of figures

Other advantages, aims and particular characteristics of the invention will emerge from the non-limiting description which follows of at least one particular embodiment of the device, of the vehicle and of the method which is the subject of the present invention, with reference to the appended drawings, wherein :

Figure 1 shows, schematically and in rear view, a first particular embodiment of the cutting aid device according to the invention in a first position in which a reel of coating is placed on the at least one pair of rollers ,

Figure 2 shows, schematically and in rear view, the device illustrated in Figure 1 in a second position in which each pair of rollers is inclined to receive a reel of coating,

Figure 3 represents, schematically and in rear view, a particular embodiment of the drawer of the cutting aid device,

Figure 4 shows, schematically and in front view, from the side and mounted on a drive means, a particular embodiment of arm drive reliefs and a reel of the cutting aid device,

Figure 5 represents, schematically and in the form of a flowchart, a succession of particular steps of a method of using the aid device that is the subject of the invention,

Figure 6 shows, schematically and in side view, an embodiment of a vehicle which is the subject of the invention comprising a cutting aid device which is the subject of the invention,

Figure 7 shows, schematically in top view, the device illustrated in Figures 1 and 2, before deployment of the drawer,

Figure 8 shows, schematically in top view, the device illustrated in Figures 1, 2 and 7, after deployment of the drawer and in the process of transferring a coil from an upper plate to the lower drawer,

Figure 9 shows, schematically in side view, the device illustrated in Figures 1, 2, 7 and 8, after deployment of the drawer and before transfer of a coil from an upper plate to the lower drawer, Figure 10 shows, schematically, a first particular embodiment of the laying device that is the subject of the invention,

Figure 11 represents, schematically, the installation device illustrated in figure 10 in use, Figure 12 schematically represents a first particular embodiment of the covering cutting aid device, object of the invention, provided with a laying device, object of the invention,

Figure 13 represents, schematically and in the form of a flowchart, a particular succession of steps of a laying process that is the subject of the invention,

Figure 14 represents, schematically in side view, a particular embodiment of the unwinding device object of the invention,

Figure 15 represents, schematically in front view, the device illustrated in figure 14 and

Figure 16 shows, schematically in side view, the unwinding device object of the invention provided with a reel and placed against a peripheral wall of a swimming pool.

Description of embodiments

This description is given on a non-limiting basis, each characteristic of an embodiment being able to be combined with any other characteristic of any other embodiment in an advantageous manner. Note that the figures are not to scale.

Throughout the description, what is at the top in FIGS. 1 to 3, 6 and 9 is called "top", "above" or "upper". is at the bottom in these figures. What is on the left in figures 6 and 9 and at the top in figures 7 and 8 is called "front" and what is on the right in figures 6 and 9 and below in figures 7 and 8 is called "rear". "right", which is on the right in figures 1 to 3, 7 and 8, "left", which is on the left in figures 1 to 3, 7 and 8 and "from the side", a view from right or left of the device. These various orientations correspond to the physical orientations of a vehicle or a trailer when the device which is the subject of the invention is in the normal position of use at the rear of a vehicle or on a trailer connected to a vehicle, for example . There is seen in Figures 1, 7, 8 and 9, a schematic view of an embodiment of the device 10 for aiding cutting object of the invention.

The device 10 for aiding the cutting of coating in the form of a coil 105 has a cutting axis 100 and comprises a plate 101 having a receiving plane 102 of at least one coil of coating, 103, 104 or 105, the axis; 127, 128 or 129, is parallel to the cutting axis 100.

The plate 101 is equipped with:

- at least one pair of rollers, 106 and 107, allowing a reel 105 to move in a direction parallel to the cutting axis 100, with a movable axis of rotation, 130, 131, 132, perpendicular to the cutting axis 100 when the wheels are in the locked position,

- tilting means 108 of each pair of rollers, 106 and 107, the tilting means 108 having an axis of rotation 126 parallel to the cutting axis 100 allowing to tilt a roller 106 of each pair of rollers, 106 and 107, to facilitate the crossing of said roller 106 by the reel 105 of coating and

- Locking means 109 of the inclination of all the rollers, 106 and 107, in the locked position.

A drawer 110, moved in translation relative to the plate 101 along an axis parallel to the cutting axis 100, comprises at least two rollers, 112 and 113, for unwinding axes, 114 and 115, parallel to the axis of die 100. These rollers 112 and 113 are arranged to receive the reel 105 of coating after it has moved on each pair of rollers, 106 and 107, so that the coating 105 can be unwound while being held laterally by the rollers, 112 and 113, to be cut parallel to the cutting axis 100.

It is noted that, apart from the mobile axes of rotation, 130, 131 and 132, which are adjustable, the other axes mentioned in the description are all horizontal. Furthermore, in the locked position, the mobile axes of rotation, 130, 131 and 132, are also horizontal.

The device 10 which is the subject of the invention shown in FIG. 1 thus preferably has a frame in two substantially superimposed parallelepipedal parts. The upper part has the tray 101 and side walls on three sides, right, left and front. The lower part has the shape of a compartment under the tray 101. The compartment is closable by means of a door (not shown) mounted on hinges (not shown). The door is mounted on the rear side of the drawer. The rear side, without side wall, of the upper part is perpendicular to the cutting axis 100. The compartment houses the drawer 110 mounted on sliders 111 to slide inside the compartment, parallel to the cutting axis 100 The drawer 110 is thus completely retractable inside the compartment. This makes it possible to limit the size of the device 10 to position it on a trailer or in a trunk 61 of a utility vehicle 60, for example.

Figure 1 shows a section of the device 10, a single pair of rollers, 106 and 107, is therefore shown. Each pair of rollers, 106 and 107, has axes of rotation, 130, 131, 132 parallel to each other and perpendicular to the cutting axis 100. Preferably, the device 10 comprises at least three pairs of rollers, 106 and 107, aligned along an axis 126 parallel to the cutting axis 100 and distributed such that a first pair of rollers is positioned close to the rear side of the tray without side wall, a second pair of rollers is positioned close to the front side, the third pair of rollers being positioned between the first and second pair of rollers. "Close" means that the distance between the pair of rollers and the side of the upper part of the frame, in the axis of alignment 126 of the pairs of rollers, is less than ten percent of the distance between the two opposite sides of the upper part of the frame in the axis of alignment 126 of the pairs of rollers. Preferably, the rollers, 106 and 107, of a pair of rollers, 106 and 107, are mounted on the same shaft so that the axis of rotation 126 of the rollers, 106 and 107, is substantially in the plane 102 of the plate 101 and perpendicular to an axis parallel to the cutting axis 100 in the plane 102 of the plate 101 .

Preferably, the shafts supporting the pairs of rollers, 106 and 107, are mounted on the same tilting means 108. The tilting means 108 are the same tilting shaft, with an axis of rotation 126, relative to the frame, parallel to the cutting axis 100. Thus, all the pairs of rollers, 106 and 107, are tilted simultaneously by actuating the tilting means 108 and a single locking means 109 is necessary.

The tilting means 108 may have a removable actuating handle 124 of the tilting means 108. The removable interlocking of the actuating handle 124 of the tilting means 108 is known to those skilled in the art and can be made by screwing or by key of non-circular section, for example. The locking means 109 may consist of any latch known to those skilled in the art preventing the rotation of the tilting means 108 relative to the chassis. The position locked, shown in Figure 1, is the position in which the axis of rotation 126 of the rollers is in a plane parallel to the plane 102 of the plate 101.

In Figure 2, the rollers, 106 and 107, the coating reel 105, the handle 124 and the tilting means 108 are shown in dotted lines in a tilted position. We see in Figure 2, a wheel 106 of the pair of wheels shown in the mode of use of the device 20, is inclined to enter the lower part of the frame so that the wheel does not exceed, or little, of the surface 102 of the plate 101 receiving the reel 105 of coating. It is then possible to roll the reel 105 of coating on the surface 102 of the plate 101, and cross the roller 106 without substantial effort before straightening the pair of rollers, 106 and 107, according to the position represented in FIG. 1 and locking this position with the locking means 109.

In some embodiments, the device 10 comprises a means of attachment, 122 and 123, of at least one strap 125 (see FIG. 7) to hold in place at least one reel, 103, 104 and 105, of coating. The attachment means, 122 and 123, is composed of at least two openings facing each other and positioned on two right and left side walls of the upper part of the frame. The drawer shown in Figures 1 and 2 is detailed in Figure 3. In Figure 3, the drawer is taken out of the lower part of the frame by sliding on the slides 111. For more stability, the drawer is supported on at least two feet , 310 and 311 , adjustable. In Figure 3, the frame and the plate 101 are not shown. Preferably, the drawer 110 comprises a level 312 and a means of adjustment, 310 and 311, of the horizontality of the drawer. Indeed, the feet, 310 and 311 being adjustable in height, the adjustment of the height of the feet makes it possible to adjust the horizontality of the drawer 110.

In the embodiment represented in FIG. 3, the reel 105 of coating has been transferred to the drawer 110, by manual displacement in translation in a direction parallel to the cutting axis 100 by rolling each pair of rollers, 106 and 107 The reel 105 is then positioned on at least two rollers, 112 and 113, for unwinding the reel 105. The unwinding rollers, 112 and 113, create two linear supports parallel with the axis 127 of the reel 105. The weight of the spool 105 keeps the spool resting against the two unwind rollers, 112 and 113.

The unwinding rollers, 112 and 113, have axes, 114 and 115, parallel to the cutting axis 100 and to the axis 127 of the reel 105 positioned resting on the unwinding rollers, 112 and 113. unwinding rollers, 112 and 113, allow the reel 105 to unwind easily by creating a support rotated when the reel 105 is unwound. The efforts of the operator to unwind the reel 105 are therefore minimized.

Preferably, the unwinding rollers, 112 and 113, can be positioned symmetrically with respect to a plane of symmetry comprising the axis 126 around which the inclination of the rollers, 106 and 107 is carried out, and perpendicular to the plane 102 of the plate 101.

In embodiments (not shown), the device 10 comprises a removable pad positioned in the extension of the axis of rotation 126 of the set of rollers and the axes of rotation, 114 and 115, the unwinding rollers, 112 and 113. When the shoe is put in position, it is supported by the unwinding rollers, 112 and 113, and on the tilting means 108 to help slide the end of the reel 105 during its transfer on the rollers unwinding, 112 and One observes, in FIG. 3, a plane 120 for aiding the cutting of the unrolled covering 301 . The weight of the unrolled covering 301 presses the unrolled covering 301 against the plane 120. The plane 120 includes a slot 121 along the cutting axis 100 to guide a blade during cutting. The plane 120 is preferably parallel to the plane 102 of the plate 101.

In some embodiments, the device further comprises a means 314 for winding the unrolled covering 301 arranged on the drawer 110, the winding means 314 and the at least two rollers, 112 and 113, for unwinding being arranged on either side of the slot 121. The winding means 314 preferably comprises a cylindrical reel 302 and a motor 304 for driving the reel 302. The reel 302 has an axis parallel to the cutting axis 100. On the cylindrical surface of the spool 302 can be fixed the leading edge of the unrolled coating. The term “leader edge” is defined as an edge of the coating, substantially parallel to the axis 127 of the coil 100. By manipulating the leader edge around the axis 127 of the coil 100, the coating can be unrolled . In some embodiments, the spool 302 bears on two rollers, 116 and 117, for holding in position. The holding rollers, 116 and 117, create two linear supports parallel with the axis of the spool 302. The weight of the spool 302 and of the coating wound on the spool 302 keeps the spool bearing against the two holding rollers, 116 and 117 The holding rollers, 116 and 117, have axes, 118 and 119, parallel to the cutting axis 100 and to the axis of the reel 302. The holding rollers, 116 and 117, allow the coating to be easily wound around the spool 302. The efforts of the operator to wind the coating 301 are therefore minimized.

When the leader edge is fixed to the reel 302, by actuating the motor 304, the operator unrolls the coating from the reel 105. Preferably, the holding rollers, 116 and 117, are positioned symmetrically to the unwinding rollers, 112 and 113, relative to a plane of symmetry comprising the cutting axis 100 and perpendicular to the plane 120.

The device 10 comprises the motor 304 for rotating the spool 302 and a pedal 306 for actuating the motor 304 configured to be actuated by the foot of an operator. The pedal 306 can be connected to a power supply 305 and control the supply of the motor 304 with electrical energy. Preferably, the more pressure the operator applies to the pedal 306, the higher the speed of rotation of the motor 304. Preferably, the motor 304, the pedal 306 and the power supply 305 are removable to allow more compactness of the drawer.

In other embodiments, the rotation of the spool 302 is carried out by hand or by means of a removable crank.

In Figure 3, the device 30 further comprises an extendable arm 303 switchable between a reel drive position 302 and a reel drive position 105 of coating positioned on the unwind rollers, 112 and 113.

The extension of the switchable arm 303 can be performed by any means known to those skilled in the art, for example by means of a slide and a slider.

The switchable arm 303 has two ends, one being removably attached to the drawer 110 and the other by winding means 314. In the embodiments in which the means winding 314 comprises a motor 304, the motor 304 can be fixed intermediately between the reel 302 and the switchable arm 303 at one end of the switchable arm 303.

Preferably, the end of the switchable arm fixed to the drawer 110 is fixed in a plane comprising the cutting axis 100 and perpendicular to the plane 120. Thus, when the arm switches between the two positions, it drives either the coating reel which rests on the unwinding rollers, 112 and 113, or the reel 302 which is resting on the holding rollers, 116 and 117, arranged symmetrically with respect to the plane comprising the cutting axis 100 and perpendicular to the plane 120 .

Preferably, the spool 302 and the arm 303 have corresponding driving reliefs, 40 and 42. When the motor 304 is attached to the arm 303 intermediate between the end of the arm 303 and the reel 302, the motor has the drive relief, 40 or 42, corresponding to that of the reel 302. The drive reliefs, 40 and 42, are shown in Figure 4. A first drive relief, 40 and 41, is shown in front view 40 and in side view 41 in Figure 4.

The first training relief, 40 and 41, has a straight truncated cone 401 with a circular base. The circular face with the smallest diameter is provided with two rods 402 and 403 of circular section. One of the rods 402 has a groove 404.

The second driving relief 42 is a plate 420 provided with orifices, 421 and 422, arranged similarly to the rods, 402 and 403, so that the rods, 402 and 403, penetrate through the orifices 421 and 422. Given the weight of the reel 302, the periphery of the orifice, 421 or 422, accommodating the rod 402 fitted with the groove 404, rests in the groove which makes it possible to prevent the reliefs from coming off while the reel 302 is rotating .

Furthermore, since the relief, 40 and 41, has two rods, 402 and 403, inserted into the orifices, 421 and 422, of the corresponding relief 42, the rotation of a relief, 40 and 41 or 42, causes the rotation of the another relief, 40 and 41 or 42.

Preferably, the spool 302 has the driving relief 42 and the motor 304 or the arm 303 has the driving relief, 40 and 41.

In some embodiments, the drawer 110 comprises an odometer, 307 and 308, in rotation along an axis parallel to the cutting axis 100 to measure a distance of unrolled coating 301. An odometer is a device provided with a wheel 308 , which when rotated activates a counter 307 for measuring a distance traveled on the perimeter of the wheel. We could also have used the term “roulette counter”. In the embodiment shown in Figure 3, the odometer, 307 and 308, is mounted on a positionable arm 309 removable relative to the drawer 110. The positionable arm 309 can have any configuration known to those skilled in the art.

Preferably, the odometer, 307 and 308, is positioned opposite the slot 121.

In some embodiments, the device 30 further comprises a hot air gun 313 facing an edge of the unrolled coating 301 to weld a strip to the unrolled coating. The hot air gun can be positioned on a positionable arm 309 and provided with a reel of tape automatically unwinding against the edge of the liner. Heating the strip causes it to adhere to the coating. FIG. 5 shows a method of using a device 10 which is the subject of the invention. The initial situation is a situation in which one or more reels, 103, 104, 105, of coating are placed on the receiving plane 102 of the plate 101. To use the device which is the subject of the invention, at least one roller 106 of each pair of rollers, 106 and 107, is tilted 51 in a first direction by actuating the handle 124 connected to the tilting means 108. Then, rolls 52 the reel 105 of coating that one wishes to cut to cross the wheel 106 inclined. Is inclined 53 then, in the opposite direction, each pair of wheels, 106 and 107, to position the wheels in a substantially horizontal position shown in Figure 1. It locks 53 this position.

The reel 105 is translated 54 by pulling on it, the wheels, 106 and 107, therefore begin to roll to facilitate the translation of the reel 105. At the end of the translation, the reel 105 is positioned on the rollers, 112 and 113 , unfolding.

The reel 105 is partially unwound to hook the leader edge to the reel 302. Then, the winding means 314 are operated to unwound the reel 105 and wind the coating around the reel 302 by measuring 56 the unwound distance. The actuation of the winding means 314 can be carried out by applying pressure to a pedal 306 to operate a motor 304. Finally, when the unwound distance corresponds to the desired distance, the coating 301 is cut, for example by sliding a cutter in a slot 121. These steps can be preceded by steps for installing the device 10. To install the device 10, the drawer 110 is pulled, which slides on the sliders 111. The removable feet 310 are fixed and 311 and each foot is adjusted according to the level indication 312 so that the drawer 110 is substantially horizontal. Then, we set up the power supply 305, the switchable arm 303, the pedal 306, the motor 304 which are removable.

It is observed in Figure 6, a vehicle 60 object of the invention, having a trunk 61 comprising a device 10 object of the invention according to the embodiments described above. In some embodiments, the vehicle 60 comprises a trailer in which the device 10 which is the subject of the invention is positioned. The vehicle 60 is, for example, a utility vehicle, such as a van.

We recall the following definitions:

- an "edge" is a limit of a surface, in particular the smallest side of a rectangular section commonly known as a "thickness", and

- a "profile" is the section of a straight volume, i.e. generated by straight lines.

In the rest of the description, it is considered that the coating and the strip each unwind from a reel or a roll, the profile of the coating or of the strip is a section in a plane comprising the axis of the reel or of the roll. The profile of the coating or of the strip is rectangular at any point of the strip or of the coating.

A schematic view of an embodiment of the laying device 400 object of the invention is observed in FIG. 10. The device 400 for placing a strip 402 on an edge 404 of a covering 401 comprises:

- a support 420 of a reel 401 of strip 402,

- a mechanical fixing 416 with a hot air gun, 405 and 406, for welding strip 402 to coating 501, - a strip guide 403 to position the strip 402 first facing the hot air gun, 405 and 406, then resting on the edge 504 of the coating 501 and

- a stop 410 for positioning the guide 403 of the strip 402 with respect to the edge 504 of the coating 401 to superimpose the strip 402 with the coating 501, the strip welded to the coating having an L profile.

The support 420 of the reel 401 is a shaft with a diameter corresponding to the diameters of the reels 401 of the strip 402 known to those skilled in the art. The shaft may include a stop and a means for holding the coil 401, such as a nut screwed onto a thread of the shaft, for example. The holding means is preferably removable in order to be able to replace the coil. The coil 401 is placed around the shaft until it reaches the stop, then the means for holding the coil 401 is put in place. The stopper and the holding means allow the spool 401 to be rotated relative to the support 420 around the axis of the shaft while being held in position to prevent lateral movement of the spool 401. Preferably, the support 420 of the reel 401 is fixed to the mechanical attachment 416, by a positionable arm 404. The positionable arm 404 can have at least one axis of rotation parallel to the unwinding axis to adjust the spacing between the support 420 of the coil 401 as a function of the dimensions of the coil 401 and in particular of the diameter of the coil 401 .

The hot air gun, 405 and 406, is preferably a hot air gun having a frame 406 and a nozzle 405. The mechanical attachment 416 is, for example, a flange, positioned around the frame of the hot air gun 406 and tight against the frame of the hot air gun 406. The hot air gun, 405 and 406, comprises a power supply means 407, preferably an electrical outlet to be plugged into a power outlet. In some embodiments, the electrical power supply means is an independent electrical power source, such as a battery, for example.

The hot air gun, 405 and 406, also comprises a means 408 for operating the hot air gun, for example a push button controlling the electrical supply of the hot air gun. The nozzle 405 of the hot air gun 406 comprises the guide 403 of the strip 402 to position the strip 402, during its movement, first facing the hot air gun, 405 and 406, which heats the strip, then resting on the edge 504 of the coating 501 where the strip 402 is welded to the edge 504 of the coating 501 . The guide 403 is a tube with dimensions corresponding to the dimensions of the strips known to those skilled in the art. The dimensions of the tube can be ten percent greater than the dimensions of the strips known to those skilled in the art. The tube 403 is fixed to the end of the nozzle 405 so that the strip 402, inserted in the tube 403, comes out of the tube 403 facing the nozzle 405 to be heated and positioned on the edge 504 of the coating 501 . Preferably, the strip guide 403 and the nozzle 405 are a single mechanical part. One can define an unwinding axis of the strip as being the axis of the tube 403. The device 400 also comprises a stop 410 for positioning the guide 403 of the strip 402 with respect to the edge 504 of the coating 501 to superimpose the strip 402 with the coating 501. The strip 402 welded to the edge 504 of the coating 501 has an L-shaped profile. The abutment 410 preferably comprises a plate normal to the coating 501 and parallel to the unwinding axis. When unrolling the strip, the edge of the strip comes into contact with the plate which is positioned against the edge 504 of the covering 501 . Thus, the edges, 503 and 504, of the strip 502 and of the coating 504 coincide to form the L-section.

In some embodiments, the device 400 comprises a means for crushing, 416 and 417, the strip 402 against the coating 501 to stretch and unroll the strip 402. The crushing means, 416 and 417, preferably has two surfaces planes, 416 and 417, parallel to each other and perpendicular to the abutment 410. The plane surfaces, 416 and 417, face one another. A flat surface 416 may be attached to nozzle 405 downstream of tube 403 to guide strip 402 once heated. The other flat surface 417 may be attached to the stopper 410. A chamfer or rounding may be present at the junction between each flat surface, 416 and 417, and the nozzle 405 or the stopper 410 respectively.

The distance between the flat surfaces, 416 and 417, corresponds to the sum of the thicknesses of the strip 402 and of the coating 501 . The strip 402 is unrolled by friction between the strip 402 and the coating 501 on the one hand, and the strip 402 and the flat surface 416, on the other hand. In embodiments, the crushing means, 416 and 417, comprises means 413 for adjusting the tension of the strip 402. The means for adjusting 413 the tension of the strip 402 is a means for adjusting the spacing between the flat surfaces 416 and 417.

In the embodiment shown, the stopper 410 and the flat surface 417 are attached to a shoe 409. The shoe 409 is intended to slide against the coating 501 to guide the device 400. The shoe 409 is attached to the heat gun 406. The shoe 409 includes a wheel 413 for adjusting the distance between the hot air gun 406 and the shoe 409 thus adjusting the distance between the flat surfaces 416 and 417. The wheel adjustment 413 can be any wheel known to those skilled in the art. job.

In some embodiments, the device 400 comprises means 41 1 for adjusting the position of the abutment 410 for positioning relative to the guide 403. The pad 409 is, for example, mounted around a screw with a threaded rod of axis normal to the stop 410. The screw is inserted into a corresponding hole attached to the hot air gun 406. By tightening or loosening the screw, the stop 410 is moved laterally. "Laterally" means along the axis of the screw which is parallel to the axis of the coil support 401 and normal to the plane of the stop 410.

The adjustment means 411 can be any adjustment means known to those skilled in the art for adjusting the relative position of two objects in translation along an axis.

In some embodiments, the device 400 includes a damper 412 to keep the shoe 409 in contact against the coating 501. The damper 412 can be a compression spring, for example. These embodiments make it possible to prevent the device 400 from moving relative to the coating and to maintain homogeneous welding of the strip 402. In some embodiments, the device 400 comprises a means for controlling 414 the heating temperature of the strip 402. The control means 414 can be a knob to adjust the heating temperature.

Preferably, the device 400 comprises a means 415 for matching the heating temperature and the speed of relative movement between the device and the coating. For example, this matching means 415 may include: - a means of measuring the speed of relative movement between the device and the coating and

- a means for controlling the heating temperature as a function of the measured relative displacement speed.

The means for measuring the relative speed can be any means known to those skilled in the art, for example:

- a reel rotation speed sensor 401 to deduce the length of unwound strip 402 and therefore the relative speed between the device 400 and the coating,

- if the device is moving and the coating is fixed, a gyroscope or

- an odometer, also known as a roller counter, the odometer is equipped with a timer to calculate a speed and can for example be fixed to the skate and configured so that the roller rolls on the 501 surface.

In other embodiments, the mapping means 515 includes:

- a means of measuring the heating temperature and

- a means for controlling the speed of relative movement between the device and the coating as a function of the measured heating temperature.

The servo means can be incorporated into the control means and be a control program in which the greater the relative speed of movement, the higher the heating temperature, and vice versa.

In other embodiments, the matching means 515 includes a smoke detector and if smoke is detected, the heating temperature is stabilized. In other embodiments, the matching means 515 includes a smoke detector and if when the smoke density is greater than a predetermined value, the heating temperature is reduced and/or the speed of relative movement between the device and the coating is increased.

When the device 400 is mounted on a device 30 for motorized winding of a covering, the speed of the motor, driving the covering, can be slaved to the heating temperature. Or, in other embodiments, the motor speed is measured and the heating temperature is slaved to the measured speed.

To summarize, the device 400 comprises two parts fixed to each other:

- a shoe 409 of adjustable position relative to the hot air gun, provided with a stop 410 and a flat surface 417 perpendicular to this stop, on which the coating 501 rests, the stop being in contact with the edge 504 of the 501 coating and

- a hot air gun 406 provided with a support 420 of reel 401 and a nozzle 405 on which there is a tube 403 through which the strip 402 passes which is pinched in a flat surface 416, fixed to the nozzle 405, and the coating 501 , itself positioned on the flat surface 417.

It is observed in FIG. 11 that the strip 402 passes through the tube 403, is heated by means of the nozzle 405. Then the heated strip 502 is crushed against the coating 501 by the flat surfaces, 416 and 417. device 400 bring abutment 410 into contact with edge 504 of coating 501 and edge 503 of strip 502. The hot air gun, 405 and 406, and device 400 can be presented in the form of a kit. One observes, in FIG. 12, a particular embodiment of a device 30 for motorized winding of a covering comprising a device 400 for laying a strip 402 which is the subject of the invention. The device 30 comprises a hot air gun 400 facing an edge of the unrolled coating 301 to weld a strip to the unrolled coating.

We observe, in figure 12, a plane 315 to help cut the unrolled covering 301 . The weight of the unrolled covering 301 presses the unrolled covering 301 against the plane 315. The plane 315 includes a slot 314 along a cutting axis to guide a blade during cutting.

In FIG. 13, a method 70 of using a device 400 that is the subject of the invention can be seen. It is considered that the adjustments concerning the position of the stopper 410 and the tension of the strip 402 have been made beforehand.

To manipulate the device 400, the abutment 410 is placed 71 in position against the edge 504 of the covering 501 . Part of the strip is unrolled 72 and the unrolled end of the strip 402 is positioned 73 between the flat surfaces 416 and 417 of the crushing means. Then one begins the heating 73 of the strip and the movement of the device 74. By moving the device the strip unwinds 72 continuously, the unwound part being heated 73. By moving 74 the device 400, one calculates 75 the speed of relative movement of the device 400 with respect to coating 501 and the heating temperature is slaved 76 as a function of the calculated speed.

The term "peripheral wall" of a swimming pool refers to a side wall of a swimming pool, in other words, a side wall of the swimming pool corresponding to the edges, generally vertical, of the swimming pool, as opposed to the bottom of the swimming pool. A peripheral wall has a "side face" and a "top face". The side face is the face containing the water when the pool is filled, against which the liner is laid. The upper face is the face on which the copings, or a swimming pool deck, are placed. Throughout the description, what is at the top in FIGS. 14 to 16 is called "top", "above" or "upper". on these figures. We call “front” what is on the left in figures 14 and 16 and “rear” what is on the right in figures 14 and 16. We call “right” what is on the right in figure 15 and “ left”, which is on the left in Figure 15 and “side”, a view from the right or left of the device.

Figures 14 and 15 show schematic side and front views of a particular embodiment of the unwinding device 600 which is the subject of the invention. The device 600 for unwinding a coating in the form of a coil 701 against a peripheral wall 702 of a swimming pool, comprises a frame 601 fitted with a support 633 for a coil 701 of coating. The support 633 is free to rotate relative to the frame along an axis 650 called the "rolling axis" parallel to a side face 703 of the wall 702. The device 600 also comprises a first set of at least two rollers 605 of axes of rotation 630 parallel to the axis of unwinding 650 to cause the frame 601 to roll against the side face 703 of the wall 702 and a second set of at least two rollers 602 with axes of rotation 629 perpendicular to the side face of the wall to roll the frame 601 on an upper face 704 of the wall 702.

Frame 601 has two assembled frames: - a lower frame having two so-called "lateral" reinforcements, 612 and 613, in the form of a straight cylinder trunk with a rectangular guide curve and a generating curve parallel to the unwinding axis 650, and two so-called "transverse" reinforcements, 615 and 618, as a truncated right cylinder with a rectangular directing curve and a generating curve perpendicular to the axis of unwinding 650 and to the axis of rotation 629 of the second set of rollers 602 and

- an upper frame having two so-called "lateral" reinforcements, 620 and 621, in the form of a right cylinder trunk with a rectangular guide curve and a generating curve parallel to the unwinding axis 650, and two so-called "transverse" reinforcements, 610 and 617, in truncated right cylinder with a rectangular directing curve and a generating curve perpendicular to the axis of unwinding 650 and to the axis of rotation 629 of the second set of rollers 602.

Preferably, the transverse frame 618 is arranged at the upper ends of the side frames, 612 and 613. And the transverse frame 617 is arranged at the lower ends of the side frames, 620 and 621. When the lower and upper frames are assembled, the frames transverse, 617 and 618, are supported one on the other and assembled by any assembly means 619 known to those skilled in the art, such as screws and nuts, for example. The left armatures, 613 and 621, are aligned, and the right armatures, 612 and 620, are aligned. The implementation of two dis-assemblable frames makes it possible to disassemble the device 600 and to limit its size. Preferably, a first part 607 of the support 633 of the coil 701 is fixed to the lower frame by means of a lower base 614. The lower base 614 has the shape of two truncated right cylinders with a rectangular guiding curve. The first truncated cylinder has a generating curve perpendicular to the axis of unwinding 650 and perpendicular to the axis of rotation 629 of the second set of rollers 602. The second truncated cylinder has a generating curve parallel to the axis of rotation 629 of the second set of rollers 602. The second cylinder trunk is assembled, by one end, to the first cylinder trunk, substantially in the middle of the first cylinder trunk.

The support 633 of the coil 701 comprises a circular plate 607 whose center coincides with the unwinding axis 650. The plate 607 of the coil 701 has a relief called "first relief" in the form of a right truncated cone 606 with a circular director whose center coincides with the unwinding axis 650, the top of the cone also being coincident with the unwinding axis 650. The larger diameter base of the truncated cone 106 is positioned on the plate 607. with 701 coating coils of different diameters. The lower end of the coil 701 is positioned around the first relief 606.

The upper frame has a second relief 608 movable relative to the frame and fitting with the upper end of the coil 701. The second relief 608 is, for example, a rod fitting into the coil 701 of coating.

In embodiments, the second relief 608 has a right truncated cone with a circular base. The circular face with the smallest diameter is provided with two rods of circular section distributed at the same distance from the center of the circular face. One of the rods has a groove. The second relief 608 fits into a corresponding relief on the end of the coil 701 . This corresponding relief on the coil 701 is provided with orifices arranged similarly to the rods so that the rods penetrate through the orifices.

In some embodiments, the second relief 608 includes a means 633 for adapting the gap between the first relief 607 and the second relief 608, this adaptation taking place in one dimension between the ends of the coil.

For example, the second relief 608 can be mounted on an upper plinth 634 similar to the lower plinth 614. The difference between the upper plinth 634 and the lower plinth 614 lies in the fact that the upper plinth 634 comprises the upper transverse frame 610, which is movable in translation relative to the side frames, 620 and 621. The upper base 634 may include a means 611 for locking its position relative to the side frames, 620 and 621. The blocking means 61 1 can be any means known to those skilled in the art.

In embodiments not shown, the lower base 614 is also movable in translation relative to the side frames, 612 and 613, and has means for locking its position relative to the side frames, 612 and 613.

Preferably, the second relief 608 includes a means 609 for displaying the position of the second relief 608 with respect to this other end of the coil 701 . The display means 609 is, for example, a mirror aligned with the rod or rods of the second relief 608. The operator can therefore look in the mirror to see if the second relief 608 and the end of the coil 701 are aligned, before lowering the second relief 608 to block the coil 701 between the first 607 and the second relief 608 and to lock its position.

The first set of at least two rollers 605 is preferably fixed to the lower frame. The rollers 605 are positioned on the transverse frame 615 symmetrically with respect to the unwinding axis 650. The first and second reliefs, 607 and 608, are arranged in front of the side frames, 612 and 620, and the set of rollers 605 is arranged at the rear of the side frames, 612 and 620. Thus, only the rollers 605 come into contact with the side face 703 of the wall 702.

The second set of at least two rollers 602 is preferably fixed to the upper frame. In the embodiment shown, the second set of rollers 602 comprises four rollers 602. The rollers 602 are positioned on a mobile frame 616 symmetrically with respect to the unwinding axis 650. The first and second reliefs, 607 and 608, are arranged at the front of the side frames, 612 and 620, and the set of wheels 602 is arranged at the rear of the side frames, 612 and 620.

The armature 616 is movable in translation relative to the frame 601 along an axis parallel to the unwinding axis 650. The armature 616 is a truncated right cylinder with a rectangular directing curve and a generating curve perpendicular to the unwinding axis 650 and the axis of rotation 629 of the second set of wheels 602. The frame 616 may have two shaped holes corresponding to the section of the side frames, 620 and 621, to slide on the side frames, 620 and 621. Preferably , the movable armature 616 comprises a locking means 604 of the position of the movable armature 616 relative to the frame 601. The locking means 604 may comprise a crank which actuates the movement of elements deviating and entering into contact with reinforcement side, 620 and 621 to lock the position of the movable armature 616. The elements can be plates provided with an adherent coating, for example.

In some embodiments, the frame 601 comprises at least one handle 603 for moving the frame 601 relative to the wall 702. Preferably, the frame 601 comprises two handles 603, on either side of the unwinding axis 650 In the embodiment shown, the handles 603 are positioned on the mobile armature 616, respectively to the left and to the right of the second set of rollers 602.

In embodiments (not shown), a handle 603 is positioned on the left frame 621 and another handle is positioned on the right frame 620.

The device 600 further comprises at least a third set of at least two rollers, 623, 624, 626 and 627, with an axis of rotation, 631 or 632, parallel to the axis of unwinding 650, of support of the spool 701 to facilitate the rotation of the spool 701 along the unwinding axis 650. Preferably, the third set of wheels has four wheels, 623, 624, 626 and 627, distributed in pairs on either side of the unwind axis 650.

A pair of wheels, 623 and 624, is fixed, on the one hand, to a shaft 622 with axis 631 parallel to the unwinding axis and, on the other hand, to the right frame 612 of the lower frame. The other pair of rollers, 626 and 627, is fixed, on the one hand, to a shaft 625 with axis 632 parallel to the unwinding axis and, on the other hand, to the left frame 613 of the lower frame .

In other embodiments (not shown), the rods, 622 and 625, are attached to the side frames, 620 and 621, of the upper frame.

The pairs of rollers, 623 and 624, and 626 and 627, form linear supports, with axes parallel to the axis of unwinding 650, against the coil 701. These supports make it possible to press firmly against the reel 701 to unroll the coating.

Preferably, the shafts, 622 and 625, are connected by a spring 628 in compression. The spring 628 therefore tends to push the shafts, 622 and 625, and therefore to maintain the rollers, 623, 624, 626 and 627 in contact with the coil 701 .

We observe, in Figure 16, a device 600 object of the invention in use against a side wall

702 of a swimming pool. It is observed that the first set of rollers 605 bears against the side face

703 of the wall 702 and that the second set of rollers 602 rests on an upper face 704 of the wall 702. The coil 701 is positioned on the device 400 between the first relief 607 and the second relief 608. The position adjustments rollers 602 and second relief 608 have been made to match wall 702 and coil 701 .

The method for producing a swimming pool which is the subject of the invention comprises at least one of the use of the cutting aid device which is the subject of the invention, the use of the laying device which is the subject of the invention and the use of the unwinding device which is the subject of the invention. Preferably, this method of making a swimming pool comprises at least two of these uses and, even more preferably, these three uses. Preferably, the vehicle which is the subject of the invention comprises at least two of these devices which are the subject of the invention and, even more preferably, these three devices.

Claims

1. Device (10, 20, 30) for aiding the cutting of coating in the form of a coil (103, 104, 105), the device having a cutting axis (100) and being characterized in that it comprises:

- a plate (101) having a reception plane (102) of at least one coating reel, the axis (127) of which is parallel to the cutting axis, the plate being provided with:

- at least one pair of rollers (106, 107), allowing a reel to move in a direction parallel to the cutting axis, with an axis of rotation (130, 131, 132) movable perpendicular to the cutting axis when the wheels are in the locked position,

- inclination means (108) of each pair of rollers, the inclination means having an axis of rotation (126) parallel to the cutting axis making it possible to tilt a roller (106) of each pair of rollers to facilitate the crossing of said roller by the coating reel and

- Locking means (109) of the inclination of all the wheels in the locked position; and

- a drawer (110) in translation relative to the plate along an axis parallel to the cutting axis, comprising at least two rollers (112, 113) for unwinding axes (114, 115) parallel to the cutting axis arranged to receive the reel of coating after it has moved on each pair of rollers, so that the coating can unroll while being held laterally by the rollers to be cut parallel to the cutting axis.

2. Device (10, 20, 30) according to claim 1, which further comprises a slot (121) along the cutting axis (100) to guide a blade during cutting.

3. Device (30) according to claim 2, which further comprises a winding means (302, 304, 314) of the unrolled coating (301) arranged on the drawer (110), the winding means and the at least two unwinding rollers (112 and 113) being arranged on either side of the slot (121).

4. Device (30) according to claim 3, which further comprises a switchable arm (303) between a driving position of the winding means (302, 304, 314) and a driving position of the reel coating positioned on the unwinding rollers (112 and 113).

5. Device (30) according to claim 4, wherein the winding means (302, 304) and the arm (303) have drive reliefs (40, 41, 42) in mechanical correspondence.

6. Device (30) according to one of claims 3 to 5, wherein the winding means (314) comprises a motor (304) for rotating a reel (302) and an actuating pedal ( 306) of the engine configured to be actuated by the foot of an operator.

7. Device (30) according to one of claims 1 to 6, wherein the drawer (110) comprises an odometer (307, 308) rotating along an axis parallel to the cutting axis (100) to measure a distance of unrolled coating.

8. Device (30) according to one of claims 1 to 7, wherein the drawer (110) comprises a level

(312) and an adjustment means (310, 311) of the horizontality of the drawer.

9. Device (10, 20) according to one of claims 1 to 8, which comprises an attachment means (122, 123) of at least one strap (125) to hold in place a coil (103, 104, 105) of coating on the tray.

10. Device (10, 20) according to one of claims 1 to 9, which comprises a removable handle (124) for actuating the tilting means (108).

11 . Device (30) according to one of Claims 1 to 10, which additionally comprises a hot air gun

(313) facing an edge of the unrolled coating (301) to weld a strip to the unrolled coating.

12. Device (30) according to one of claims 1 to 11, which comprises a device for laying a strip (402) on an edge (504) of a coating (501), laying device which comprises:

- a support (400) for a reel (401) of strip,

- a mechanical fixing (416) with a hot air gun (405, 406) for welding the strip to the coating,

- a guide (403) for the strip to position the strip first facing the hot air gun then resting on the edge of the covering and

- a stop (410) for positioning the guide of the strip relative to the edge of the coating to superimpose the strip with the coating, the strip welded to the coating having an L profile.

13. Device (30) according to claim 12, wherein the laying device further comprises a means for crushing (416, 417) the strip (402) against the coating to split and unroll the strip (402) .

14. Device (30) according to claim 13, wherein the crushing means (416, 417) comprises means for adjusting (413) the tension of the strip (402).

15. Device (30) according to one of claims 13 or 14, wherein the crushing means (416, 417) comprises two flat surfaces (416, 417) facing each other between which are positioned the strip (402, 502) and coating (501) superimposed.

16. Device (30) according to one of claims 12 to 15, wherein the laying device comprises means for adjusting (412) the position of the abutment (410) for positioning relative to the guide (403).

17. Device (30) according to one of claims 12 to 16, wherein the laying device comprises a control means (414) of the heating temperature of the strip (402).

18. Device (30) according to claim 17, in which the laying device comprises means (415) for controlling the heating temperature to the speed of relative movement between the laying device and the coating (501).

19. Device (30) according to one of Claims 17 or 18, in which the laying device comprises means (405) for controlling the speed of relative movement between the laying device and the coating (501) at the heating temperature.

20. Vehicle (60) comprising a device (10, 30) according to one of claims 1 to 19, for example in a trailer or in a trunk (61).