FR3096381A1 - TOOL-FREE PLATFORM ASSEMBLY SYSTEM - Google Patents

Abstract

Platform (1, 2) comprising a plate (3) arranged between a first side part (4) and a second side part (5), the plate integrating a first end portion (6) and a second end portion (7) , the first lateral part being disposed on the first end portion, and the second lateral part being disposed on the second end portion, the first end portion comprising an assembly means (8) provided with a hooking means (35) able to fit into the second lateral part, the assembly means being movable longitudinally by sliding relative to the plate so as to move between a retracted position and an extended position, the assembly means being in the retracted position located between the first end portion and the second end portion, the assembly means being in the extended position projecting from the first end portion.

Description

Description Title of the invention: SYSTEM FOR ASSEMBLING PLATFORMS WITHOUT TOOLS

The invention relates to platforms, and in particular to low-height work platforms, that is to say platforms offering a workstation arranged at a height of less than one meter.

Such platforms can meet the EN 14183 standard.

[0002] Such work platforms are referred to throughout the remainder of the description by the term platform.

The invention relates in particular to dc work platforms called "plasterer's bench", used by specialists in dc interior finishing work, insulation and development, in particular plasterers and drywall workers.

If the stilts are an option, and offered for example for plaquistcs, for work at height, they do not prevent the risk of falling and are actually themselves dc fall factors.

Work platforms are preferred and commonly used as a workstation.

[0005] The platforms are conventionally formed of a work plate and two side supports forming a support for the plate.

[0006] The side supports are generally formed of two interconnected uprights which include steps allowing the user access to the tray, and of at least one crosspiece allowing the uprights to be stiffened between them.

[0007] In order to allow transport and storage of the platform, the side supports are mounted articulated with respect to the plate, so as to be able to be unfolded or folded.

[0008] When the side supports are unfolded, the platform is in the configuration with the supports resting on the ground via the uprights, the user being able to access the platform in a secure manner.

In such a configuration, the tray can be considered as a temporary workstation.

[0009] When the side supports are folded, the platform is in a compact configuration, and occupies a reduced volume compared to the volume occupied in the working configuration.

[0010] Examples of such platforms are described in the documents US1912947 (Martin), US2729516 (Colvin), US5246085 (Werner), US5368126 (Woodward), US6892860 (Cosco), US7690316 (Yoo), U59752334 (Tricam), US10035255 ( Cindric), US10012000 (Yoo), US20070261916 (Swai-d), U52009078165 (Tseng), US2010071996 (Huang), US 20180363307 (Werner), EP1788167 (Telesteps), 2 EP2163721 (Laing Ban), EP3222796 (2297), EP3222796 (2297), EP3222796 (2297), EP3222796 (2297), EP1788167 (Telesteps), Werner), EP3372751 (Werner), FR 2777929 (Raymond).

[0011] Due to compactness requirements related to transport and storage constraints, the plate of the platform generally does not exceed a length of between one meter fifty and two meters.

[0012] However, in some cases, such a length may prove to be insufficient for the user, in particular for carrying out building work such as plasterboard, painting or masonry work.

[0013] The user then has no choice but to position two platforms side by side.

[0014] However, such a situation, in addition to being uncomfortable for the user, puts him at risk of falling.

[0015] Indeed, the spacing between the plates of each platform creates a discontinuity in the work surface.

[0016] The user is forced to step over the empty space between the two platforms to go from one platform to the other.

[0017] Platforms provided with an adjustable-length tray have been proposed.

[0018] The documents IPH11343731 (Hascgawa) or US8042653 (Werner) propose running boards having a telescopic platform formed by tubes sliding one inside the other.

[0019] However, such devices have the effect of making the platform heavier, which is detrimental to its transport.

Furthermore, the extension length of the plate is limited, due to the risk of buttressing between the sliding tubes.

Another solution is to assemble between them two platforms previously arranged side by side, so as to allow the realization of a continuous floor.

[0021] US4951781 (Bliss) thus proposes the assembly of two benches by means of a joint.

However, such an assembly does not allow rapid separation of the benches, nor a separation of the benches which can be achieved without tools.

[0022] DE19904411 (Baumann) and US10145128 (Werner) describe platforms having at their end hooking means such as hooks.

[0023] Such attachment means protrude, generating a risk of involuntary attachment by the user during assembly, which can injure the user.

Furthermore, if one of the benches is disassembled from another bench, the remaining bench, in the use configuration, has projecting hooks.

[0024] Such hooks are also liable to be snagged or struck by an operator or by a moving machine on the site.

This may result in injury.

The bench may also be unbalanced and a user possibly located on the board may then fall.

[0025] The method of attaching the benches as described in the document US10145128 can be improved, the realization of a good interlocking not appearing to the user, a thorough visual verification of the good realization of the assembly being necessary.

The document US5746288 (O'Neal) proposes an assembly of benches using clips, which is tedious.

The application proposes to respond to the aforementioned drawbacks.

[0028] A first objective is to provide a platform that can be easily assembled with another plateforrne, such assembly requiring no tools and no special learning.

[0029] A second objective is to provide such a platform having no protruding parts.

[0030] A third objective is to provide an easily transportable and storable platform.

[0031] To this end, it is proposed, first, a platform comprising a plate disposed between a first side part and a second side part, the plate integrating a first end portion and a second end portion, the first side part being arranged on the first end portion, the second lateral part being arranged on the second end portion, the first end portion comprising an assembly means provided with a hooking means capable of being fitted onto the second lateral part, the assembly means being longitudinally movable in sliding relative to the plate, so as to move between a retracted position and an extended position, the assembly means being, in the retracted position, located between the first end portion and the second end portion , the assembly means being, in the extended position, projecting from the first end portion.

[0032]Various additional characteristics may be provided, alone or in combination: the assembly means comprises a body and two wings which extend on either side of the body, each of the wings being provided with a means hooking the assembly means comprises a sheet having a central curve complementary to a corrugation formed on the plate; the first side part and the second side part each comprise two uprights connected by at least one crosspiece, the assembly means comprising a notch, the notch having a section complementary to the crosspiece of the first side part, and of the second part side, the notch, the crosspiece of the first side part and the crosspiece of the second side part each have a semicircular section, of identical diameter; the assembly means comprises a fixing means, making it possible to block the movement of the assembly means relative to the plate; the fastening means comprises a screw, a wheel nut engaged on the screw, the screw being secured to a housing provided with a thread, the housing being arranged between an upper face and a lower face of the assembly means; the assembly means comprises a front edge provided with a tab, the tab extending from the front edge defining an angled portion and a flat portion, the flat portion extending perpendicular to the plate; the assembly means comprises a side opening of oblong shape, the side opening allowing the passage of guide pins arranged on the plate; the side parts are pivotable and foldable in a folded position relative to the platform, the platform comprising a snap-locking means holding the first side part in position in the folded position, and allowing the second side part to be held in the folded position, the second side part when folded being clamped between the plate and the first side part.

[0033] It is proposed, secondly, an assembly comprising a first platform and a second platform as presented above, the assembly means of the second platform being in the extended position and assembling the first platform to the second platform , the trays each having an upper face intended to receive a user, the upper faces of the trays being coplanar.

[0034] Other characteristics and advantages of the invention will appear more clearly and concretely on reading the following description of embodiments, which is made with reference to the appended drawings in which: [Fig.

I] represents a schematic perspective view of a platform, [Fig. 2] represents a partial schematic perspective view of the platform, an end part of the platform is represented in dotted lines, [Fig. 3] represents a partial schematic perspective view of the platform according to medallion III of FIG. 2, an end part of the platform is represented in dotted lines, a medallion represents a detail of a first lateral part, [Fig. 4] represents a schematic bottom view of the platform, [Fig. 5] represents a schematic view in partial section of the platform according to the section plane V-V of FIG. 4, [Fig. 6] represents a schematic side view of the platform, an upright being represented in dotted lines, [Fig.7] represents a schematic perspective view of the connecting means, with an inset representing a detail on a wing, a tongue and part of the body, [Fig. 8] represents a schematic perspective view of an assembly step of a first platform on a second platform, [Fig. 9] represents a schematic perspective view of an assembly step of a first platform on a second platform, [Fig. 10] represents a schematic perspective view of an assembly step of a first platform on a second platform, [Fig. 11] represents a schematic perspective view of an assembly step of a first platform on a second platform.

Reference is made to Figures 1 to 6 showing a platform 1, 2 comprising a plate 3, two lateral parts 4, 5 arranged on extreme portions 6, 7 of the plate 3, and an assembly means 8.

The lateral parts 4, 5 are advantageously hinged to the plate 3 so that they can be positioned folded or unfolded.

[0037] When the side parts 4, 5 are in the unfolded position, and rest on the ground, the platform 1, 2 is said to be in the use configuration, as shown in Figures 1 to 6.

When the 4.5 side parts are folded, the platform 1, 2 is in compact configuration, and occupies a reduced volume pai- compared to the configuration of use.

In this way, the platform 1, 2 can be transported by a single person, and stored by limiting the volume occupied.

The assembly means 8, arranged on one of the extreme portions 6, 7, slides relative to the plate 3 between a retracted position, as shown in Figures 1 to 6 as well as 8 and 9, and an extended position, as illustrated in Figures 10 and II.

The assembly means 8 is in the retracted position when the platform 1, 2 is used alone, or to facilitate transport and storage.

The assembly means 8 is put in the extended position when an assembly between several platforms 1, 2 is sought, for example between a first platform 1 and a second platform 2.

The side parts 4, 5 are provided with two parallel uprights 9 interconnected by one or more steps 10.

[0044] Such steps 10 allow access to the user on the plate 3.

The steps 10 may include an upper support surface made of perforated sheet metal, ribbed sheet metal or grating.

The steps are made of a metal alloy, for example steel or an aluminum alloy, or a composite material.

One defines with respect to the platform 1, 2 in the configuration of use an orthogonal reference 6 XYZ, comprising three perpendicular axes two by two, namely: an X axis, defining a longitudinal direction, horizontal, coincident with a general direction of extension of the plate 3; a Y axis, defining a transverse, horizontal direction, which with the X axis defines a horizontal XY plane; a Z axis, defining a vertical direction, perpendicular to the horizontal XY plane, and extending in the opposite direction to the ground.

In the embodiment dc shown, the two side parts 4.5 are identical except for symmetry along a vertical plane, so that we are limited to describing only one of the parts 4, 5 side.

[0047] Advantageously, the steps 10 are ribbed or are provided with a non-slip coating, in order to avoid any slipping during the use of one of the lateral parts 4, 5 to access the plate 3.

The uprights 9 include free ends 11 intended to be in contact with the ground.

Advantageously, non-slip shoes 12, made for example of thermoplastic material or elastomer, are fixed to the uprights 9, for example by cm-limping.

The lateral parts 4, 5 each advantageously comprise at least one crosspiece 13 intended to stiffen each of the lateral parts 4, 5.

[0051] The crosspieces 13 advantageously have a circular section

In the embodiment shown, the crosspiece 13 is arranged between a step and the plate 3, so as not to constitute an obstacle to the passage of the user the parts 4, 5 side.

[0053] Furthermore, the crosspiece 13 is located close to the plate 3, making it possible to provide support or support for making an assembly between two platforms 1, 2.

[0054] The plate 3 advantageously has a rectangular shape along a horizontal plane, the width of the rectangle extending in a transverse direction, the length of the rectangle being the side extending in a longitudinal direction.

The plate 3 includes a first end portion 6 and a second end portion 7, both symmetrical to each other with respect to a transverse plane.

When a first platform 1 is assembled to a second platform 2, the first extreme portion 6 of the first platform 1 is contiguous with the second extreme portion 7 of the second platform 2.

When the platforms 1, 2 are thus assembled, the trays 3 together constitute a continuous work surface.

The plate 3 comprises an upper face 14 and a lower face 15, both opposite to each other, the lower face 15 facing the ground when the 7 platform 1, 2 is in the configuration of 'use.

The upper face 14 is intended to serve as a support for the user.

The upper face 14 is for example coated with a non-slip material, in order to prevent the user from slipping.

The upper face 14 and the lower face 15 are connected to each other on their respective periphery by means of two side faces 16 and two end faces 17 .

The side faces 16 each form a longitudinal plane, while the end faces 17 each form a transverse plane.

The upper face 14 and the lower face 15 are advantageously made in the form of metal plates, steel or aluminum alloy.

[0064] Thus, such provisions allowing the obtaining of the hollow plate 3, cc which makes it possible to limit the mass, and promotes the transport of the platform 1, 2.

In the embodiment shown, the upper face 14 and the lower face 15 are profiled corrugated sheets have ribs 18.

[0066] In the embodiment shown, the lower face 15 comprises an undulation 19.

To facilitate the gripping of the platform 1, 2 by a hand dc the user, a light 20 is provided on the upper face 14 and the lower face 15.

The platform 1, 2 advantageously comprises a handle 21 arranged for example on a side face 16 of the plate 3.

Such a handle 21 can be grasped by the hand of a user, and allows the transport of the platform 1, 2 when the side parts 4, 5 are folded.

The uprights 9 are each provided with an extension 22, for example in the form of lugs with an opening 23.

Each opening 23 allows the insertion of a shaft 24 intended to enter a bore (not visible in the figures) provided on the side face 16 of the plate 3, so as to articulate the lateral parts 4, 5 with the tray 3.

[0071] Such a joint is produced without a significant increase in the overall mass of the platform 1, 2.

So as to allow the maintenance in the unfolded position of the side parts 4, 5, the plate 3 is advantageously provided with first buttons 25, each connected to a first stud 26 respectively.

[0073] Each first pin 26 moves within a first hole 27 made in the side face 16 on the first end portion 6 and on the second end portion 7, the movement being controlled by a pressure action on the first button 25.

The first button 25 and the first pin 26 are advantageously coupled to a first return means 28, allowing the first button 25 to remain projecting after having been pressed by the user.

In the embodiment shown, each of the first holes 27 is intended to be covered by an extension 22 of the side parts 4, 5, when the respective side parts 4, 5 are unfolded.

Opposite each first hole 27, a first cavity 29 is provided in the extension 22 of the lateral parts 4, 5.

Thus, when one of the lateral parts 4, 5 is unfolded, the respective first stud 26 is inserted into the respective first cavity 29 producing a snap-fastening allowing the rotation of the lateral part 4, 5 to be prevented with respect to the plate 3 .

In this way, the side part 4, 5 concerned is locked in the unfolded position, that is to say maintained in the unfolded position.

Such a snap also makes it possible to give the user a mark as to the correct unfolding of the side part 4, 5.

Pressing the first button 25 causes a retraction of the first stud 26, which causes the release of the first lateral part 4 or the second lateral part 5 concerned allowing the repl iagc of the first lateral part 4 or the second part 5 side concerned.

In order to allow the locking in the folded position of the lateral parts 4, 5, the plate 3 is advantageously provided with a second button 30, connected to a second pin 31.

Such a second stud 31 is associated with one of the side portions 4.5, so as to form a snap-locking means of a side portion 4.5, as described later in the description.

Thus, in the embodiment shown, only one locking means is fitted to the platform 1, 2, the side parts 4, 5 being sufficiently close to each other for a side part 4, 5 to be able to hold it in position. folded the other side part 4, 5.

[0080] In embodiments not shown, the plate comprises two second buttons 30, each connected to a respective second stud 31, allowing the formation of two locking means for each side part 4, 5.

The second pin 31 moves within a second hole 32 made in the side face 16 on the first end portion 6 and on the second end portion 7, the movement being controlled by pressing the second button 30.

The second button 30 and the second pin 31 are advantageously coupled to a second return means 33, allowing the second button 30 to remain projecting after being pressed by the user.

In the embodiment shown, the second hole 32 is intended to be covered by an extension 22 of the relevant side part 4, 5, when the respective side part 4, 5 is folded.

Opposite each second hole 32, a second cavity 34 is provided in the extension 22 of the lateral parts 4, 5. 9

[0085] Thus, when one of the lateral parts 4, 5 is folded, the respective second pin 31 is inserted into the respective second cavity 34 realizing a snap-fastening allowing to prevent the rotation of the lateral part 4, 5 relative to the plate 3.

In this way, the relevant side part 4.5 is locked in the folded position.

Advantageously, the stud 31 is rigid enough to be able to support the mass of two lateral parts 4, 5.

Thus, a side part 4, 5, for example the second side part 5 can be pushed against the plate 3 by the other side part 4.5, for example the first side part 4 which is kept folded using of the locking means.

In such a situation, a side part 4, 5, for example the second side part 5 is held in a vice between the plate 3 and the other side part 4, 5, for example the first side part 4.

In this way, only a locking means is necessary to maintain the two folded side parts 4, 5

Pressing the second button 30 causes a retraction of the second stud 31, which causes the release, the unlocking of the side part 4, 5 concerned, for example the first side part 4.

The other side part 4, 5, for example the second side part 5, unfolds by gravity.

The unfolding of the side parts 4, 5 is thus facilitated, since the two side parts 4, 5 unfold almost simultaneously by a simple action on the second button 30.

We will now describe the assembly means 8, with reference to Figures 2 to 7, and more particularly to Figure 7.

The assembly means 8 is advantageously arranged on the first end portion 6, but in other embodiments, not shown, the assembly means 8 is arranged on the second end portion 7.

The assembly means 8 is mounted on the plate 3, advantageously on the lower face 15, and moves by sliding between an extended position and a retracted position.

In the extended position, the assembly means 8 protrudes from the first end portion 6, and so as to be able to hook the hooking means 35 on a second side part 5 of another platform 1, 2.

As can be seen in Figure 7, the assembly means 8 according to the embodiments shown comprises a body 36, and two wings 37 arranged on either side of the body 36.

Advantageously, the body 36 is in the form of a sheet which offers a profile comprising curves 38, 39 along a transverse plane.

In the embodiments shown, the body describes a central curve 38 and side curves 39, the role of such curves 38, 39 being described later.

The assembly means 8 has a width similar to the spacing of the two uprights 9, and a length allowing it to extend sufficiently to be able to place the attachment means 30 on the second end portion 7 as explained later in this description.

[0097] The assembly means 8 thus occupies a minimum space on the platform 1, 2, making it possible to facilitate handling during the assembly of the platforms 1, 2.

The body 36 has a front edge 40 which is set back from the end face 17 of the first end portion 6, when the assembly means 8 is in the retracted position.

In the retracted position, the assembly means 8 therefore does not protrude from the platform 1, 2, and does not constitute an attachment point which could hinder or even injure the user.

[0100] In the embodiment represented, the shape of the central curve 38 is complementary to the undulation 19 of the lower face 15, which makes it possible to form a guide to contribute to the translation of the assembly means 8 on board 3.

The assembly means 8 is advantageously produced by stamping and by cutting.

[0102] Thanks to such a method, the assembly means 8 has a minimum weight.

In the embodiment shown, the side curves 39 are at distances from the plate 3, that is to say are not in contact with the lower face 15.

The friction between the plate 3 and the assembly means 8 facilitates the handling of the platform 1, 2 during assembly.

[0105] Thus, as can be seen in FIGS. 2, 3, 4 and 6, the body 36 incorporates oblong openings 41, 42, for example a central opening 41, and two side openings 42.

In the embodiment shown, the lateral ouvenures41 allow the insertion of guide pins 43 arranged on the plate 3, which makes it possible to contribute to the successful completion of the translation between the assembly means 8 and the plate 3.

[0107] The central opening 41 advantageously offers the passage of a fixing means 44, detailed later in this description.

In the embodiment shown, the wings 37 are made from the material of the body 36 and advantageously extend in a longitudinal plane.

The body 36 then defines with each wing 37 a right angle, so that each wing 37 can be housed between the crosspiece 13 and an internal side 45 of the upright 9.

The space occupied by the assembly means 8 is then minimized.

The wings 37 extend to the front edge 40, avoiding protruding from the plate 3 when the assembly means 8 is in the retracted position.

[0112] Advantageously, each wing 37 comprises hooking means 30, so as to allow a homogeneous distribution of the forces during the hooking of the assembly means 8, limiting the risks of buttressing.

The wings 37 are symmetrical to each other with respect to a longitudinal plane 11 passing through the middle of the assembly means 8, so we limit ourselves to describing in detail only one wing 37.

[0114] The means 35 for attaching the wing 37 comprise a notch 46, two of which are advantageously cut out on a lower lip 47 of the wing 37.

Such a notch 46 has a section complementary to the crosspiece 13 of the first side part 4.

In this way, the first notch 46 is able to be inserted within the crosspiece 13 of the first lateral part 4, allowing for example to maintain the assembly means 8 in the retracted position.

So as not to have any sharp or pointed part, the notch 41 has a semi-circular cross section, identical to the cross section 13 of the first side part 4 and of the second side part 5.

Advantageously, the notch 46 is arranged so that when the assembly means 8 is in the retracted position, the front edge 40 is set back, that is to say does not protrude from the end face 17 of plate 3.

The trays 3 of the platforms 1.2 as assembled are coplanar and aligned.

As illustrated in Figure 7, the assembly means 8 advantageously comprises a housing 48, a screw 49 and a wheel nut 50, the screw 49 successively passing through, for example, the wheel nut 50, the body 36, the lower face 15 and engaging in a thread provided in the housing 48.

[0120] In this way, the blocking between the assembly means 8 and the plate 3 is effected by gripping the central undulation 19 of the body 36 and the lower face 15 in a vice, generating enough grip to avoid any movement.

Thus, when placed in the extended or retracted position, the assembly means 8 is stopped or unlocked by a single action on the wheel nut 50, without the use of a tool.

In the embodiment shown, the housing 48 is an independent part arranged between the upper face 14 and the lower face 15.

[0123] In this way, it is not necessary to make a full plate 3, which limits the mass of the plate 3, and consequently favors the transport of the platform 1, 2 for the user.

In order to allow easy handling by the user, the assembly means 8 comprises a tongue 51, the tongue 51 extending from the front edge 40 by defining a bent portion 52 and a flat portion 53, the flat portion 53 extending perpendicularly to the plate 3.

In the embodiment shown, the tongue 51 does not extend beyond the transverse plane defined by the edge 40 front.

[0126] Thus, when the assembly means 8 is in the retracted position, the tongue 51 does not protrude from the platform 1, 2.

Reference is now made to Figures 7 to 11, which show different stages 12 of assembly between a first platform 1 and a second platform 2.

[0128] It is assumed that platform 1 and platform 2 are configured

The fixing means 44 is, for example, initially loosened by the user, which makes it possible to release the assembly means 8.

The first platform 1 is pivoted relative to an axis passing through the shoes 12 of the second side part 5, in order to lift the first end portion 6, the shoes 12 of the first side part 4 no longer being in contact of the ground.

Pressing the first button 25 releases the first side part 4, which due to gravity is pivoted so as to be placed in a substantially vertical position.

Such a situation is illustrated in Figure 8.

The first side part 4 is folded so as to cause the first side part 4 to snap onto the floor 3, as can be seen in Figure 9.

[0133] Such a configuration reached, the user can maintain the first platform 1 in balance on the second side part 5 of the first platform 1, a first hand of the user supporting the first extreme portion 6, a second hand of the user ensuring the output of the assembly means 8.

To perform such an exit from the assembly means 8, the user performs an upward action, thus releasing the notch 46 of the crosspiece 13 of the first side part 4, and pulls on tab 51 in order to move the assembly means 8.

[0135] Once the assembly means 8 in the extended position, as shown in Figure 10, the user's second hand is free, which allows the user to lift the second extreme portion 7 of the second platform 2 and press the button 25 so as to cause a pivoting by gravity of the second side part 5 of the second platform 2.

The space available between the lower face 15 and the crosspiece 13 of the second platform 2 is thus increased.

The user inserts the front edge 40 of the assembly means 8 of the first platform 1 between the crosspiece 13 and the lower face 15 of the second platform 2, and continues bringing the platforms together by fitting 1 notch 46 on the crosspiece 13 of the second side part 5 of the second platform 2.

The user then places the two platforms 1, 2 linked together on the ground, allowing the assembly to be finalized, as shown in Figure 11.

In such an assembly, the plates 3 of the platforms 1, 2 are coplanar and aligned.

The user can thus immediately see whether the assembly by interlocking has been correctly carried out.

In order to prevent any movement of the platforms 1, 2 between them, the fixing means 13 44 is tight.

[0142] The platform 1, 2, and the assembly means 8 as described find applications for people performing work at low height, that is to say work that does not require standing on a workstation at a height greater than one meter.

[0143] More specifically, the platcforme 1.2 provided with the assembly means 8 is for example suitable for work carried out in the field of construction, such as painting, electricity, masonry, carpentry, plumbing, heating, or air conditioning.

The plateforrne 1.2 provided with an assembly means 8 as described above offers many advantages.

[0145] A plurality of platforms 1.2 can be assembled together without requiring the use of tools.

The interlocking between the platcformes 1.2 is obtained easily, the good realization of the interlocking being immediately verifiable by the user.

When assembled, the plates 3 of the platforms 1.2 make it possible to obtain a continuous work surface for the user.

[0148] The plateforrne 1.2 in the use configuration does not have assembly means 8 projecting from the plate 3, which ensures use without risk of injury or snagging for the user.

The impact of the assembly means on the transport and the size of the platetbrme 1, 2 is minimal, because the assembly means 8 offers a reduced volume.

[0150] The reduced weight and volume of assembly means 8 makes it possible to limit the overall mass of the platform 1, 2. 14

Claims (2)

CLAIMS[Claim I] Platform (1, 2) comprising a plate (3) disposed between a first lateral part (4) and a second lateral part (5), the plate (3) incorporating a first end portion (6) and a second end portion (7), the first lateral part (4) being arranged on the first end portion (6), the second lateral part (5) being arranged on the second end portion (7), the first end portion (6) comprising assembly means (8) provided with a hooking means (35) capable of fitting onto the second lateral part (5), the platform (1, 2) being characterized in that the assembly means (8) is longitudinally movable in sliding relative to the plate (3), so as to move between a retracted position and an extended position, the assembly means (8) being, in the retracted position, located between the first end portion (6) and the second portion ( 7) end, the assembly means (8) being, in the extended position, projecting from the first end portion (6). [Claim 2] Platform (1, 2) according to the preceding claim, characterized in that the assembly means (8) comprises a body (36) and two wings (37) which extend on either side of the body (36), each of the wings (37) being provided with a hooking means (35). [Claim 3] Platform (1, 2) according to the preceding claim, characterized in that the assembly means (8) comprises a sheet having a central curve (38) complementary to an undulation (19) provided on the plate (3 ). [Claim 4] Platform (1, 2) according to any one of the preceding claims, characterized in that the first lateral part (4) and the second lateral part (5) each comprise two uprights (9) connected by at least one crosspiece (13), the assembly means (8) comprising a notch (46), the notch (46) having a section complementary to the crosspiece (13) of the first lateral part (4), and of the second part (5) lateral; the notch (46), the crosspiece (13) of the first lateral part (4) and the crosspiece (13) of the second lateral part (5) each have a semicircular section of identical diameter. [Claim 5] Platform (1, 2) according to any one of the preceding claims, characterized in that the assembly means (8) comprises a fixing means (44) making it possible to block the movement of the means (8) of assembly relative to the plate (3). 15 [Claim 6] [Claim 7] [Claim 8] [Claim 9] [Claim 10] Platform (1, 2) according to the preceding claim, characterized in that the fixing means (44) comprises a screw (49), a knurled nut (50) engaged on the screw (49), the screw (49) being secured to a housing (48) provided with a thread, the housing (48) being arranged between a face (14) upper and a lower face (15) of the assembly means (8). Platform (1, 2) according to any one of the preceding claims, characterized in that the assembly means (8) comprises a front edge (40) provided with a tongue (51), the tongue (51) being extending from the front edge (39) defining an angled portion (52) and a planar portion (53), the planar portion (53) extending perpendicular to the plate (3). Platform (1, 2) according to any one of the preceding claims, characterized in that the assembly means (8) comprises a lateral opening (42) of oblong shape, the lateral opening (42) allowing the passage of pins (43) guide arranged on the plate (3). Platform (1, 2) according to any one of the preceding claims, characterized in that the lateral parts (4, 5) are pivotable and foldable in a folded position with respect to the platform (3), the platform (1, 2) comprising a snap-locking means (30, 31) holding the first side part (4) in position in the folded position, and allowing the second side part (4) to be held in the folded position, the second side part (5) when folded being held in a vice between the plate (3) and the first pallie (4) side. Assembly comprising a first platform (1) according to any one of claims 1 to 9, and a second platform (2) according to any one of claims 1 to 9, the means (8) for assembling the second platform ( 2) being in the extended position and assembling the first platform (1) to the second platform (2), the trays (3) each having an upper face (14) intended to receive a user, the upper faces (14) of the trays ( 3) being coplanar.