TRANSPORT VEHICLE WITH DRIVING AND LOADING PLATFORM AND COUPLED RESTRAINT AND IMMOBILIZATION FUNCTIONS

Abstract

A transport device (TD) comprises a braking device (FD) having first and second states preventing and allowing wheel rotation (R), and a platform (PS) comprising: - front (PV) and rear (PR) parts capable of accommodating a driver and an object (O), - an arm (B1) capable of being placed in a first or second position, - retaining parts (PR1-PR2) movably mounted on lateral sides (CL1-CL2), and - a mechanism (M1) placing the braking device (FD) in its first state and moving the retaining parts (PR1-PR2) into a position allowing the installation of the object (O) when the arm (B1) is in its first position, or placing the braking device (FD) in its second state and moving the retaining parts (PR1-PR2) into a position allowing the object (O) to be retained when the arm (B1) is in its second position. Figure 2

Description

Title of the invention: TRANSPORT VEHICLE WITH DRIVING AND LOADING PLATFORM WITH COUPLED RESTRAINT AND IMMOBILIZATION FUNCTIONS Technical field of the invention

[0001] The invention relates to transport vehicles comprising a platform suitable for accommodating a driver and receiving at least one object to be transported. State of the art

[0002] Certain motorized transport devices include a structure to which at least three wheels are coupled enabling its movements, and comprising, on the one hand, a braking device suitable for being placed in a first state preventing the rotation of at least one wheel, or in a second state allowing the rotation of at least one wheel, and, on the other hand, a platform having a front part suitable for accommodating a driver and a rear part suitable for receiving at least one object to be transported.

[0003] It should be noted that this type of transport equipment may be motorized or not.

[0004] When at least one large and (relatively) heavy object has been loaded onto the rear of the platform of this type of transport vehicle, it is generally necessary to secure it so that it does not move during transport in order to prevent damage. For this purpose, ropes or straps are generally used, which may be attached separately and must be connected to anchoring devices fixed to the platform. It will be understood that this securing operation is quite time-consuming and tedious, and often not very ergonomic.

[0005] Furthermore, to ensure the smooth installation and securing of the object, it is strongly recommended that the driver first secure the transport vehicle by engaging its braking system in its initial position, which prevents the rotation of at least one wheel. Failure to do so may result in the transport vehicle moving, potentially causing damage to the vehicle itself and / or the object, and / or injury to a person involved in the installation and / or securing process. It should be noted that the same applies during the unloading of the object(s).

[0006] The invention therefore aims in particular to improve the situation. Presentation of the invention

[0007] In particular, it proposes for this purpose a transport device comprising a structure to which at least three wheels are coupled enabling its movement, and comprising, on the one hand, a braking device suitable for being placed in a first, respectively second, state in which it prevents, respectively allows, a rotation of at least one wheel, and, on the other hand, a platform comprising a front part suitable for accommodating a driver and a rear part suitable for receiving at least one object to be transported.

[0008] This transport device is characterized by the fact that it also includes:

[0009] - at least one arm suitable for being rotated on a lateral side of the platform so as to be selectively placed in one of the first and second positions,

[0010] - at least one pair of right and left retaining pieces movably mounted on the platform on the right and left lateral sides of the platform, and

[0011] - a mechanism suitable for placing the braking device in its first state and to move the right and left retaining parts simultaneously and in opposite directions so that they are placed in an installation position in which they allow the object to be installed on the rear part of the platform when the arm is in its first position, or to place the braking device in its second state and to move the right and left retaining parts simultaneously and in opposite directions so that they are placed in a restraining position in which they are suitable for laterally restraining the object on the rear part of the platform when the arm is in its second position.

[0012] Thus, by operating a rotating arm it is now possible to couple the functions of releasing object(s) and immobilizing the transport vehicle, or the functions of immobilizing object(s) and releasing the transport vehicle, which significantly simplifies loading and unloading operations.

[0013] The transport device according to the invention may include other features which may be taken separately or in combination, and in particular:

[0014] - it may comprise two arms, right and left, generally L-shaped and specific to to be rotated respectively on the right and left lateral sides of the platform;

[0015] - in the presence of the first option, the right and left arms can be coupled by a transverse bar, mounted to rotate on the platform and coupled to the Ml mechanism, so as to be driven simultaneously in rotation;

[0016] - each arm can be installed near a separation interface between the front and rear parts of the platform;

[0017] - it may include two pairs of right and left retaining parts installed respectively in front and rear sub-parts of the rear part of the platform;

[0018] - each arm can have a general L-shape, and can be clean in its first position to prohibit access to the front part of the platform, and in its second position to allow access to the front part of the platform;

[0019] - in the presence of the last option, it may include at least one panel fixedly attached to an arm and bearing information indicating a prohibition of access to the front part of the platform when this arm is placed in its first position.

[0020] - it may include a separation device installed at an interface of separation between the front and rear parts of the platform, and arranged in such a way as to define a stop capable of blocking a translation of the installed object towards the front part of the platform;

[0021] - it may include a transmission chain attached to the structure, coupled at least one drive wheel, and comprising at least one drive machine capable of providing the drive torque to rotate each drive wheel;

[0022] - in the presence of the last option, it may include, on the one hand, a front block attached to the structure and in which are installed the transmission chain and a front axle comprising at least one front drive wheel coupled to the braking device, and, on the other hand, two rear wheels mounted for rotation on the structure, under the platform. Brief description of the figures

[0023] Other features and advantages of the invention will become apparent from an examination of the detailed description below, and the accompanying drawings (obtained using CAD / CAM (“Computer-Aided Design / Computer-Aided Manufacturing”)), in which:

[0024] [Fig-1] schematically illustrates, in a side perspective view, an example of the construction of a transport device according to the invention, on which a driver is installed who is reversing it towards a vehicle containing an object to be transferred,

[0025] [Fig.2] illustrates schematically and partly functionally, in another view In perspective from the side, the transport device of [Fig. 1] is immobilized next to the vehicle after its driver left his platform and placed an arm in its first position,

[0026] [Fig.3] schematically illustrates, in another side perspective view, a part of the transport device of [Fig.1] with the object transferred from the vehicle onto the rear part of its platform and still immobilized because its arms are still in their first position, and

[0027] [Fig.4] schematically illustrates, in a side perspective view, a part of the transport device of [Fig.1] with the object transferred from the vehicle onto the rear part of its platform and ready to leave because its arms are now in their second position holding the object and allowing the driver access to the front part of its platform. Detailed description of the invention

[0028] The invention aims in particular to provide a transport device ET intended to support and transport a driver CE and at least one object O on a platform PS with coupled restraint and immobilization functions.

[0029] In what follows, by way of non-limiting example, the transport vehicle ET is considered to have two front wheels R and two rear wheels R' enabling its movement, as illustrated in [Fig. 1]. However, the invention is not limited to this type of transport vehicle. It relates to any transport vehicle comprising a structure to which at least three wheels are coupled enabling its movement, and comprising a platform having a front portion adapted to accommodate a driver and a rear portion adapted to receive at least one object to be transported. Thus, the transport vehicle ET could have a single front wheel and two rear wheels, or two front wheels and a single rear wheel. Furthermore, the transport vehicle ET could be a delivery shuttle or a cargo tricycle.

[0030] In figures 1 to 4, the direction X is the longitudinal direction of the transport vehicle ET, which is substantially parallel to the lateral (or longitudinal) sides CLj of its platform PS (described later), the direction Y is the transverse direction of the transport vehicle ET, which is perpendicular to the longitudinal direction X, and the direction Z is the vertical direction of the transport vehicle ET, which is perpendicular to the longitudinal direction X and the transverse direction Y.

[0031] An example of the realization of an ET transport vehicle according to the invention (here a three-wheeled vehicle) has been schematically illustrated in [Fig.1].

[0032] As illustrated at least partially in [Fig.1], a transport device ET, according to the invention, comprises a structure, to which are coupled at least three wheels R enabling its movements, and comprising a braking device DF, a platform PS, at least one arm Bj, at least one pair of right retaining pieces PR1 and left retaining pieces PR2, and a mechanism Ml.

[0033] The structure may, for example, comprise a set of tubes fixedly joined together, for example by welding and / or screwing, and to which is fixedly attached a front assembly BV comprising a front axle with at least one front wheel R, optionally coupled to the braking device DF. In this case, each rear wheel R is rotatably mounted on the tubular assembly, under the platform PS. It should be noted that in the example illustrated, but not limited to, in Figures 1 and 2, the front axle comprises two front wheels R and two rear wheels R, right and left, installed under the platform PS. However, the front axle could comprise only one front wheel R.

[0034] The braking device DF is arranged so as to be placed either in a first state in which it prevents the rotation of at least one wheel R (and therefore allows the immobilization of the transport vehicle ET), or in a second state in which it allows the rotation of at least one wheel R (and therefore the movements of the transport vehicle ET).

[0035] For example, this braking device DF may include a hydraulic or pneumatic circuit coupled to at least one disc brake(s) coupled to a wheel R. Alternatively, the braking device DF could include at least one cable coupled to a caliper brake coupled to a wheel R.

[0036] The platform PS is fixedly attached to the structure and comprises a front section PV and a rear section PR that extend from each other. As illustrated in Figures 1 and 4, the front section PV is designed to accommodate a driver CE, while the rear section PR is designed to receive at least one object O to be transported by the transport vehicle ET. This platform PS comprises two lateral (or longitudinal) sides CLj, one located on the right (CL1, j = 1) and the other on the left (CL2, j = 2). It will be understood that these two lateral sides CLj extend along the longitudinal direction X. For example, this platform PS may comprise a rigid and resistant wall made of metal, plastic, or synthetic material.

[0037] It will be noted that in the example illustrated non-limitingly in Figures 1 and 2 the object O is initially housed in a vehicle V and must be transferred onto the platform PS of the transport vehicle ET, in order to be transported by the latter (ET) to its destination.

[0038] The (each) arm Bj is arranged so as to be driven in rotation on one of the two lateral sides right CL1 and left CL2 of the platform PS in order to be placed selectively in a first position (illustrated in figures 2 and 3) or in a second position (illustrated in figures 1 and 4).

[0039] Each pair comprises right retaining pieces PR1 and left retaining pieces PR2 which are movably mounted on the platform PS respectively on its right lateral sides CL1 and left lateral sides CL2. Each of the right retaining pieces PR1 and left retaining pieces PR2 of a pair can be placed in at least one installation position (illustrated in Figures 2 and 3) or one retaining position (illustrated in Figures 1 and 4).

[0040] In their installation position, the right retaining pieces PR1 and left PR2 of a pair allow the installation (free (or unobstructed)) of at least one object O on the rear part PR of the platform PS.

[0041] In their retained position, the right retaining pieces PR1 and left retaining pieces PR2 of a pair are suitable for laterally retaining at least one object O on the rear part PR of the platform PS.

[0042] The mechanism Ml is coupled to each arm Bj, to the braking device DF, and to the right retaining parts PR1 and left retaining parts PR2 of each pair. Furthermore, the mechanism Ml is arranged either to place the braking device DF in its first state and to move the right retaining parts PR1 and left retaining parts PR2 simultaneously and in opposite directions so that they are placed in their installation position when the arm Bj is in its first position, or to place the braking device DF in its second state and to move the right retaining parts PR1 and left retaining parts PR2 simultaneously and in opposite directions so that they are placed in their retaining position when the arm Bj is in its second position.

[0043] In other words, when the driver CE (for example) rotates an arm Bj to its first position, this automatically and simultaneously causes the braking device DF to move to its first state, immobilizing the transport vehicle, and the right restraints PR1 and left restraints PR2 to move to their installation position, allowing at least one object O to be placed on the rear part PR of the platform PS. Conversely, when the driver CE (for example) rotates an arm Bj to its second position, this automatically and simultaneously causes the braking device DF to move to its second state, allowing the transport vehicle to move, and the right restraints PR1 and left restraints PR2 to move to their restraint position, which holds (or immobilizes) each object O on the rear part PR of the platform PS.Thus, the functions of releasing object(s) O and immobilizing the transport device ET, just like the functions of immobilizing object(s) O and releasing the transport device ET, are coupled by a simple action on an arm Bj (rotating), thanks to the mechanism Ml. .

[0044] It will be noted that during the unloading of the object O, an arm Bj will first be moved from its second position to its first position in order to cause the immobilization of the transport vehicle ET and the end of the retention of the object O.

[0045] In addition, there is no longer any need to provide ropes or straps (possibly added) and anchoring means on the platform to immobilize an object for the purpose of transporting it.

[0046] The invention therefore makes it possible to significantly simplify the operations of loading and unloading object(s) O.

[0047] For example, the right retaining parts PR1 and left retaining parts PR2 of each pair can be mounted in translation along the transverse direction Y of the platform PS. In this case, in their installation position, the right retaining parts PR1 and left retaining parts PR2 of a pair are separated from each other by a maximum distance along the transverse direction Y, so as to allow the installation, between them (PR1 and PR2), of at least one object O on the rear part PR of the platform PS. And, in their restraint position the right restraint pieces PR1 and left restraint pieces PR2 of a pair are separated from each other by a minimum distance (strictly less than the aforementioned maximum distance) along the transverse direction Y, so as to exert pressures in opposite directions (along the latter (Y)) on the right and left sides of each object O installed between them (PR1 and PR2) on the rear part PR of the platform PS, and thus restrain (or immobilize) each object O.

[0048] However, in an alternative embodiment illustrated in Figures 3 and 4, the right retaining pieces PR1 and left retaining pieces PR2 of each pair can be mounted for rotation about axes parallel to the longitudinal direction X of the platform PS, preferably being aligned along the transverse direction Y of the platform PS. In this case, in their installed position, the right retaining pieces PR1 and left retaining pieces PR2 of a pair are folded substantially against the rear part PR of the platform PS, so as to allow the installation, between them (PR1 and PR2), of at least one object O on the rear part PR of the platform PS.And, in their restrained position, the right restraint pieces PR1 and left restraint pieces PR2 of a pair are straightened substantially vertically, so as to exert pressures in opposite directions (along the transverse direction Y) on the right and left sides of each object O installed between them (PR1 and PR2) on the rear part PR of the platform PS, and thus restrain (or immobilize) each object O.

[0049] Also, for example, and as illustrated without limitation in Figures 1 to 4, the transport device ET may include a right arm B1 (j = 1) and a left arm B2 (j = 2) which are adapted to be driven in rotation respectively on the right lateral sides CL1 and left lateral sides CL2 of the platform PS. This advantageously allows the driver CE (for example) to actuate the right arm B1 if he dismounts from the platform PS on its right lateral side CL1, or to actuate the left arm B2 if he dismounts from the platform PS on its left lateral side CL2.

[0050] Also, for example, and as illustrated, without limitation and at least partially, in Figures 1 to 4, the right arm B1 and left arm B2 can be coupled by a crossbar BT, which is rotatably mounted on the platform PS (along the transverse direction Y) and coupled to the mechanism M1, so as to be driven in rotation simultaneously. This allows for a single coupling between the mechanism M1 and the two arms B1, via the crossbar BT, which simplifies the arrangement, and ensures that the two arms B1 move in the same way simultaneously.

[0051] Also, for example, and as illustrated but not limited to Figures 1 to 4, each arm Bj can be installed near the separation interface IS between the front PV and rear PR sections of the PS platform. This prevents each arm Bj from obstructing the CE driver when getting on or off the front PV section of the PS platform.

[0052] Also, for example, and as illustrated without limitation in Figures 1 to 4, the transport device ET may include two pairs of right-hand retaining elements PR1 and left-hand retaining elements PR2, which are installed respectively in a front sub-section SPV and a rear sub-section SPR of the rear section PR of the platform PS. This allows for increased immobilization of the object O when the arm(s) Bj is / are placed in the second position. However, the number of pairs may be any value greater than or equal to one. It should be noted that when there is only one pair, it is preferable for it to be installed approximately in the middle of the longitudinal extension of the rear section PR of the platform PS.

[0053] Also, for example, and as illustrated non-limitingly in Figures 1 to 4, the right retaining pieces PR1 and left PR2 of each pair can be angle brackets (with an L-shaped cross-section). But they could also be slides having an open internal housing in which a possible corresponding rib defined on a lower lateral side of the object O can be housed.

[0054] Also, for example, and as illustrated non-limitingly in figures 1 to 4, each arm Bj can have a general L-shape. In this case, each arm is suitable in its first position to prohibit access to the front part PV of the platform PS (see figures 2 and 3), and in its second position to allow access to the front part PV of the platform PS (see figures 1 and 4).

[0055] It will be understood that when an arm Bj is in its first position, its first part PI, mounted for rotation on the platform PS, is substantially vertical, while its second part P2, substantially perpendicular to its first part PI, is positioned substantially horizontally above a lateral side CLj in the space allowing access to the front part PV of the platform PS. This prevents the driver CE from accessing this front part PV while ensuring that the transport unit ET is immobilized and completely freeing access to the lateral sides CLj. It should be noted that the prohibition of access to the front part PV is intended to enhance the safety of the driver CE during the loading / unloading of the object O.

[0056] Conversely, when an arm Bj is in its second position, its first part PI is positioned substantially horizontally above a lateral side CLj in the space allowing access to the rear part PR of the platform PS, while its second part P2 is substantially vertical. This allows the first parts PI of the arms Bj to define, above the lateral sides CLj, retaining "barriers" for the object O installed on the rear part PR of the platform PS, while completely freeing access to the front part PV of the platform PS. Thus, when the driver CE steps onto the front part PV of the platform PS, it is certain that the object O has been immobilized.

[0057] It will be noted, as illustrated non-limitingly in figures 1 to 4, that each arm Bj may optionally include an inclined reinforcement bar connecting its first PI and second P2 parts.

[0058] Also, for example, and as illustrated, but not limited to, in Figures 1 to 4, the transport unit ET may also include at least one PA sign fixedly attached to an arm Bj and bearing information indicating a prohibition of access to the front part PV of the platform PS when this arm Bj is in its first position. It will be understood that, in the presence of arms Bj generally shaped like an L, the PA sign is preferably fixedly attached to the second part P2 of the arm(s) Bj so as to be clearly visible when the latter (Bj) is in its first position (and thus remind the driver CE that he must not go onto the front part PV of the platform PS).

[0059] Also, for example, and as illustrated but not limited to Figures 1 to 4, each PA sign may include the word stop. Alternatively, each PA sign could include a red circle with a horizontal white bar similar to a no entry sign.

[0060] Also, for example, and as illustrated, but not limited to, in Figures 1 to 4, the transport vehicle ET may also include a separation device DS installed at the separation interface IS between the front PV and rear PR sections of the platform PS. In this case, this separation device DS is arranged to define a stop that is designed to block the translation of the object O installed towards the front PV section of the platform PS. It will be understood that this separation device DS extends transversely and substantially vertically. It may be a wall (possibly with a central opening (as illustrated, but not limited to)) or at least a substantially vertical bar, for example.

[0061] It should be noted, although not illustrated in the figures, that the front part PV of the PS platform could include a seat for the CE driver. However, the ET transport unit can be driven with the CE driver in a standing position, as illustrated (but not limited to) in Figures 1 and 4. In the absence of a seat, a small backrest could be attached to the upper end of the possible DS separation device.

[0062] Also, for example, and as illustrated, without limitation and partly functionally, in [Fig. 2], the transport unit ET can be motorized. In this case, it also includes a transmission chain attached to its structure and coupled to at least one drive wheel R. This transmission chain includes at least one drive machine MM which is capable of providing the motor torque to rotate each drive wheel R. It should be noted that in the example illustrated, without limitation, in [Fig. 2], the transmission chain is installed inside the block The front BV is fixed to the structure and includes a front axle with two driven front wheels (R) coupled to the DF braking system. However, the drive chain could be fixed to the structure under the PS platform, in which case the rear wheels (R) are driven.

[0063] For example, each drive unit MM can be an electric machine associated with a rechargeable battery BR equipping the transport vehicle ET and designed to store electrical energy, particularly to power it when it needs to operate to move the transport vehicle ET. But in an alternative embodiment, each drive unit MM could be a heat engine.

[0064] In the presence of reversible electric drive machine(s) MM, this / these latter (MM) can / may be arranged to recover torque in a regenerative braking phase and to transform this recovered torque into electrical current to recharge the battery BR.

[0065] Also, for example, and as illustrated non-limitingly and partly functionally in [Fig. 2], the mechanism M1 may, for example, comprise a rack installed under the platform PS along the longitudinal direction X, engaging a toothed wheel fixedly to the crossbar BT, and to which are coupled, for example by rotation, the first ends of two pairs of rigid rods having second ends opposite to their first ends and coupled respectively, for example by rotation, to the right retaining pieces PR1 and left retaining pieces PR2 of the two pairs. This rack is also coupled to a control element controlling the state in which the braking device DF is placed.It will be understood that with such an arrangement, when an arm Bj is driven in rotation in a first direction, the rack is translated in a first direction (towards the rear) which forces the four rods to pull on the right retaining parts PR1 and left PR2 of the two pairs to bring them together and thus retain the object O, and at the same time puts the control member into a first state which causes the braking device DF to stop working (and therefore allows the transport vehicle ET to move).Conversely, when an arm Bj is rotated in a second direction (opposite to the first direction), the rack is translated in a second direction (forward) which forces the four rods to push the right retaining pieces PR1 and left PR2 of the two pairs away from the object O and thus release it, and at the same time puts the control member into a second state which causes the braking device DF to operate (and therefore allows the transport unit ET to be immobilized).

[0066] Of course, other embodiments of the mechanism M1 can be envisaged, and in particular with one or more computers associated with actuators (or control elements) designed to act on the right retaining parts PR1 and left PR2 of the two pairs and the braking device DF according to instructions (or commands) provided by the associated computer. Thus, and as partially and non-limitingly illustrated in Figures 3 and 4, when the right retaining parts PR1 and left PR2 of (each) pair are mounted to rotate about axes parallel to the longitudinal direction X of the PS platform, the mechanism MI can, for example, comprise two longitudinal shafts installed under the PS platform along the longitudinal direction X, to which the right retaining parts PR1 and left PR2 of the two pairs are fixedly attached respectively, and provided with bevel gears meshing respectively with two other bevel gears fixedly attached to two ends of the BT crossbar, in order to define two bevel gears.Thus, the rotation of an arm Bj causes the crossbar BT to rotate, and consequently the two longitudinal shafts to rotate, which in turn causes the right retaining parts PR1 and left retaining parts PR2 of the two pairs to rotate. The mechanism M1 may also include a part (or a cable), for example coupled to the crossbar BT, designed to act on a control element that regulates the state of the braking device DF. Therefore, the rotation of an arm Bj in a first direction causes the crossbar BT to rotate in that first direction, which puts the control element into a first state that deactivates the braking device DF (and thus allows the transport vehicle ET to move).Conversely, rotating an arm Bj in a second direction (opposite to the first direction) causes the crossbar BT to rotate in this second direction, which puts the control unit into a second state which causes the braking device DF to operate (and thus makes it possible to immobilize the transport vehicle ET).

Claims

Demands

1. Transport device (ET) comprising a structure to which are coupled at least three wheels (R) enabling its movements, and comprising i) a braking device (DF) adapted to be placed in a first, respectively second, state in which it prevents, respectively permits, a rotation of at least one wheel (R), and ii) a platform (PS) having a front part (PV) adapted to accommodate a driver (CE) and a rear part (PR) adapted to receive at least one object (0) to be transported, characterized in that it further comprises a) at least one arm (Bj) adapted to be driven in rotation on a lateral side (CLj) of said platform (PS) in order to be selectively placed in one of the first and second positions, b) at least one pair of right (PR1) and left (PR2) retaining pieces movably mounted on said platform (PS) on right (CL1) and left (CL2) lateral sides of said platform (PS),and c) a mechanism (M1) suitable either for placing said braking device (DF) in its first state and for moving said right (PR1) and left (PR2) retaining parts simultaneously and in opposite directions so that they are placed in an installation position in which they allow the installation of said object (0) on said rear part (PR) when said arm (Bj) is in its first position, or for placing said braking device (DF) in its second state and for moving said right (PR1) and left (PR2) retaining parts simultaneously and in opposite directions so that they are placed in a restraint position in which they are suitable for laterally restraining said object (0) on said rear part (PR) when said arm (Bj) is in its second position.

2. Transport device according to claim 1, characterized in that it comprises two right (B1) and left (B2) arms adapted to be driven in rotation respectively on said right (CL1) and left (CL2) lateral sides of said platform (PS).

3. Transport device according to claim 2, characterized in that said right (B1) and left (B2) arms are coupled by a crossbar (BT), mounted for rotation on said platform (PS) and coupled to said mechanism (M1), so as to be driven simultaneously in rotation.

4. Transport device according to any one of claims 1 to 3, characterized in that each arm (Bj) is installed near a separation interface (IS) between said front (PV) and rear (PR) parts of the platform (PS).

5. Transport device according to any one of claims 1 to 4, characterized in that it comprises two pairs of right (PR1) and left (PR2) retaining parts installed respectively in front (SPV) and rear (SPR) sub-parts of said rear part (PR) of the platform (PS).

6. Transport device according to any one of claims 1 to 5, characterized in that each arm (Bj) has a general L-shape and is suitable in its first position for prohibiting access to said front part (PV) of the platform (PS), and in its second position for allowing access to said front part (PV) of the platform (PS).

7. Transport device according to claim 6, characterized in that it comprises at least one panel (PA) fixedly attached to an arm (Bj) and bearing information indicating a prohibition of access to said front part (PV) of the platform (PS) when this arm (Bj) is placed in its first position.

8. Transport device according to any one of claims 1 to 7, characterized in that it comprises a separation device (DS) installed at a separation interface (IS) between said front (PV) and rear (PR) parts, and arranged so as to define a stop suitable for blocking a translation of said object (0) installed towards said front (PV) part of the platform (PS).

9. Transport device according to any one of claims 1 to 8, characterized in that it comprises a transmission chain attached to said structure, coupled to at least one drive wheel (R), and comprising at least one drive machine (MM) capable of providing drive torque to rotate each drive wheel (R).

10. Transport equipment according to claim 9, characterized in that it comprises i) a front block (BV) attached to said structure and in which are installed the transmission chain and a front axle comprising at least one front wheel (R) driven and coupled to said braking device (DF), and ii) two rear wheels (R) mounted for rotation on said structure, under said platform (PS).

Images