EP4008300A1 - Device for access to a control deck of a vehicle, and vehicle provided with such an access device - Google Patents

Abstract

Device (1) for access to a cab (25) for piloting a vehicle (24), said device (1) comprising a base (2) that can be positioned on the vehicle (24), a mast (5) of adjustable carried by the base (2) and a platform (9) carried by the mast (5). The telescopic platform (9) is pivotally coupled to the mast (5) by a pivot connection with a horizontal axis extending transversely to the 'longitudinal axis (XX') of the mast (5) for pivoting movement of said platform (9) between a folded position against the mast (5) and a deployed, horizontal position, in which it forms an angle close to 90° with the longitudinal axis (XX') of the mast (5), and the base (2) comprises at least one fixed part (3) and one movable part (4) mounted to move in the direction of approaching or separation of the fixed part (3) from the base (2), the mast (5) being coupled to the mobile part (4) of the base.

Description

The present invention relates to a device for access to a cockpit of a vehicle, such as a heavy vehicle, in particular for a person with reduced mobility, as well as a vehicle, such as a heavy vehicle equipped with such an access device.

It relates in particular to a device for access to a so-called high cockpit of a vehicle, such as a heavy vehicle, for a person with reduced mobility in a wheelchair, to allow the ascent or descent of said cockpit. , said device comprising a base that can be positioned on the vehicle, a mast of adjustable length carried by the base and a platform carried by the mast.

Some vehicles, in particular heavy vehicles also called road tractor vehicles, such as road tractors or carrier vehicles, have the particularity of having a cockpit at height. This cabin is said to be high. By high cabin, it is meant that the floor of such a cockpit is spaced from the ground by a distance at least equal to 800 mm, generally between 850 and 1600 mm. The same is true for some load handling vehicles. This results in the impossibility for a driver whose mobility is reduced, in particular a driver in a wheelchair, to access the seat of the cockpit from the ground without the help of a third party.

An object of the invention is to provide an access device of the aforementioned type whose design allows, for a person with reduced mobility, that is to say for a person traveling in a wheelchair, the ascent or descent from the cockpit located at the height of a vehicle without the help of a third party.

To this end, the subject of the invention is a device for access to a cockpit of a vehicle, such as a heavy vehicle, said device comprising a base that can be positioned on the vehicle, a mast of adjustable length carried by the base and a platform carried by the mast, characterized in that the platform is a telescopic platform pivotally coupled to the mast by a pivot connection with a so-called horizontal axis extending transversely to the longitudinal axis of the mast for a pivoting movement of said platform between a folded position against the mast and a deployed position, called horizontal, in which it forms an angle close to 90° with the longitudinal axis of the mast, and in that the base comprises at least one fixed part and one part mobile mobile mounted in the direction of a rapprochement or a separation of the fixed part of the base, the mast being coupled to the mobile part of the base. The platform is therefore a platform that at least supports people. In particular, the platform makes it possible to support at least one person with reduced mobility in a wheelchair. This design makes it possible to have a compact device that can be positioned behind the cockpit inside the road gauge defined by the cockpit in the folded state of the platform against the mast and brought closer to the mast of the fixed part of the base. This design also allows for raising and lowering of the cockpit without external assistance for the driver of the vehicle.

According to one embodiment of the invention, the mobile part of the base is, for its mobile mounting in the direction of bringing together or moving apart from the fixed part of the base, mounted mobile in a direction parallel to the axis of the pivot connection of the platform to the mast. In other words, the movable part of the base is, for its movable mounting in the direction of bringing the fixed part of the base closer to or moving apart, mounted movable in a direction orthogonal to the longitudinal axis of the mast. The mast thus moves parallel to itself during the movement of the mobile part of the base in the direction of a rapprochement or a separation of the fixed part of the base.

According to one embodiment of the invention, the movable part and the fixed part of the base are connected to each other by a sliding interlocking connection. This sliding interlocking connection makes it possible to reduce the size of the device in the position close to the movable part of the fixed part of the base. The interlocking direction is a direction parallel to the pivot axis of the pivot connection of the platform to the mast.

According to one embodiment of the invention, the telescopic platform comprises a platform forming a floor and a support for said platform, said platform being slidably mounted on the support for movement of the tray between a position in which it extends at least partially plumb and above the support and a position in which it extends at least partially cantilever -false with respect to the support. This arrangement makes it possible to limit the displacements of the mast and of the mobile part of the base to which the mast is coupled while allowing the user to approach as close as possible to the control station of the cabin in order to facilitate the transfer. The plate of the platform is slidably mounted on the support in a direction transverse to the axis of the pivot connection of the platform to the mast.

According to one embodiment of the invention, the plate of the platform, which has a so-called active load support face, is equipped with guardrails pivotally coupled to the plate around an axis perpendicular or parallel to the axis of the pivot connection of the platform to the mast for movement of said railings between a folded position bearing on the active load support face of the plate of the platform and a position of use in which they extend in the state erected projecting from the active load support face of said plate. The coupling of the guardrails to the platform ensures the safety of the person being carried whatever the position of the platform platform.

According to one embodiment of the invention, the plate of the platform is delimited by so-called transverse edges extending transversely to the sliding direction of the plate on the support and longitudinal edges, and one of the transverse edges free of railing is equipped with an access ramp. This access ramp makes it easier for a wheelchair to climb onto the platform. The transverse edge of the deck of the platform without guardrails is the transverse edge of the deck farthest from the mast.

According to one embodiment of the invention, the access ramp is mounted to move between a raised position in which it projects from the active load support face of the plate and forms a stopper along one of the transverse edges of the plate and a lowered position in which it forms, in the state positioned horizontally of the plate with the active face load support of the plate forming the face of the top of the plate, an inclined ramp with a downward slope from the face active load carrier of said tray. Thanks to that design, the access ramp also constitutes a safety device preventing undesired descent of the platform.

According to one embodiment of the invention, the ramp is equipped with at least one return member in the raised position and the platform is equipped with a drive control member for moving the ramp from the raised position to the lowered position, this mounted control member movable between an inactive position in which the ramp is raised and an active position in which the ramp is lowered extending at least partially projecting from the so-called underside face opposite the active face supporting the tray load in inactive position. This control member is thus configured to move between an inactive position in which the ramp is raised and an active position in which the ramp is lowered by simple bearing contact with the ground in the state driven in movement of said platform in the direction of a lowering of said platform to a support position on the ground of said platform. This construction makes it possible to guarantee the safety of the platform as soon as the platform is raised.

According to one embodiment of the invention, the mast of adjustable length is a telescopic mast comprising a plurality of elements, such as frames, mounted in sliding interlocking. The adjustable length mast is coupled to the movable part of the base by the part of the mast which forms the upper part of the mast in the longest configuration of the mast. Thus, the mast can pass from the retracted position to the extended position by extending towards the ground in the upright state of the mast.

According to one embodiment of the invention, said device comprises actuators configured at least to allow some, the driving in displacement of the mobile part of the base or of the platform, the others, the telescoping of the platform or the length adjustment of the mast, and an actuator control unit. The actuators can thus be controlled manually and/or automatically.

According to one embodiment of the invention, the device comprises presence and/or position sensors and the control unit is configured to acquire data from different sensors and to control the actuators according to said data. It is thus possible to interrupt a movement at any time or, conversely, to automatically control a movement.

According to one embodiment of the invention, the device comprises a preferably wireless communication system able to communicate with a remote terminal, and a control unit configured to acquire data from the communication system and to control the actuators according to at least of said data. Thus, the control of the access device can be done entirely remotely by the person having to access the cabin.

The invention also relates to a heavy vehicle comprising a cockpit and an access device, characterized in that the access device is of the aforementioned type and is arranged behind the cockpit taken with respect to the direction progress of the vehicle and falls within the road gauge defined by the cockpit in the folded state of the platform against the mast and brought closer to the mast of the fixed part of the base.

According to one embodiment of the invention, the pilot's cabin comprises an access door to the interior of the cabin and a system for opening/closing the door, said system for opening/closing the door being equipped with a remote control to allow remote control of said door opening/closing system.

Brief description of the drawings

• [Fig. 1] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position rapprochée des parties fixe et mobile de la base et à l'état rabattu de la plateforme contre le mât ;
• [Fig. 2] représente une vue partielle en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position rapprochée des parties fixe et mobile de la base et à l'état rabattu de la plateforme contre le mât ;
• [Fig. 3] représente une vue partielle en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base et à l'état rabattu de la plateforme contre le mât ;
• [Fig. 4] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base et à l'état rabattu de la plateforme contre le mât ;
• [Fig. 5] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base et à l'état déployé de la plateforme ;
• [Fig. 6] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base, à l'état déployé de la plateforme et des garde-corps ;
• [Fig. 7] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base, à l'état déployé de la plateforme et en position sortie du mât, c'est-à-dire dans la position de plus grande longueur du mât ;
• [Fig. 8] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base, à l'état déployé de la plateforme et en position rentrée du mât, c'est-à-dire dans la position de plus petite longueur du mât ;
• [Fig. 9] représente une vue en perspective d'un véhicule lourd équipé d'un dispositif d'accès en position écartée des parties fixe et mobile de la base, à l'état déployé de la plateforme, en position sortie du mât et à l'état disposé en porte-à-faux du plateau de la plateforme ;
• [Fig. 10] représente une vue en perspective du dispositif d'accès en position rapprochée des parties fixe et mobile de la base et à l'état rabattu de la plateforme contre le mât ;
• [Fig. 11] représente une vue en perspective du dispositif d'accès en position écartée des parties fixe et mobile de la base et à l'état rabattu de la plateforme contre le mât ;
• [Fig. 12] représente une vue en perspective du dispositif d'accès en position écartée des parties fixe et mobile de la base, à l'état déployé de la plateforme et en position en porte-à-faux du plateau de la plateforme ;
• [Fig. 13] représente une vue en perspective du dispositif d'accès en position écartée des parties fixe et mobile de la base, à l'état déployé de la plateforme, en position en porte-à-faux du plateau de la plateforme et en position sortie du mât ;
• [Fig. 14] représente une vue en perspective d'un dispositif d'accès en position éclatée des éléments le constituant ;
• [Fig. 15] représente une vue en perspective d'un dispositif d'accès en position éclatée des éléments le constituant ;
• [Fig. 16] représente une vue en perspective d'un dispositif d'accès en position assemblée des éléments le constituant ;
• [Fig. 17] représente sous forme d'une vue en perspective et d'une vue partielle en perspective la plateforme en position abaissée de la rampe ;
• [Fig. 18] représente sous forme d'une vue en perspective et d'une vue partielle en perspective la plateforme en position relevée de la rampe.

The invention will be better understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:

• [ Fig. 1 ] shows a perspective view of a heavy vehicle equipped with an access device in the close position of the fixed and mobile parts of the base and in the folded state of the platform against the mast;
• [ Fig. 2 ] shows a partial perspective view of a heavy vehicle equipped with an access device in the close position of the fixed and mobile parts of the base and in the folded state of the platform against the mast;
• [ Fig. 3 ] shows a partial perspective view of a heavy vehicle equipped with an access device in the separated position of the fixed and mobile parts of the base and in the folded state of the platform against the mast;
• [ Fig. 4 ] shows a perspective view of a heavy vehicle equipped with an access device in a position separated from the fixed and mobile parts of the base and in the folded state of the platform against the mast;
• [ Fig. 5 ] shows a perspective view of a heavy vehicle equipped with an access device in a position separated from the fixed and mobile parts of the base and in the deployed state of the platform;
• [ Fig. 6 ] shows a perspective view of a heavy vehicle equipped with an access device in a position separated from the fixed and mobile parts of the base, in the deployed state of the platform and the guardrails;
• [ Fig. 7 ] shows a perspective view of a heavy vehicle equipped with an access device in a position away from the fixed and mobile parts of the base, in the deployed state of the platform and in the extended position of the mast, i.e. that is to say in the position of greatest length of the mast;
• [ Fig. 8 ] shows a perspective view of a heavy vehicle equipped with an access device in a position separated from the fixed and mobile parts of the base, in the deployed state of the platform and in the retracted position of the mast, i.e. i.e. in the position of shortest length of the mast;
• [ Fig. 9 ] shows a perspective view of a heavy vehicle equipped with an access device in a position separated from the fixed and mobile parts of the base, in the deployed state of the platform, in the extended position of the mast and in the state arranged cantilevered from the plate of the platform;
• [ Fig. 10 ] shows a perspective view of the access device in the close position of the fixed and mobile parts of the base and in the folded state of the platform against the mast;
• [ Fig. 11 ] shows a perspective view of the access device in the separated position of the fixed and mobile parts of the base and in the folded state of the platform against the mast;
• [ Fig. 12 ] shows a perspective view of the access device in the separated position of the fixed and mobile parts of the base, in the deployed state of the platform and in the cantilevered position of the plate of the platform;
• [ Fig. 13 ] shows a perspective view of the access device in a position separated from the fixed and mobile parts of the base, in the deployed state of the platform, in the cantilevered position of the platform plate and in the extended position of the mast;
• [ Fig. 14 ] shows a perspective view of an access device in the exploded position of the elements constituting it;
• [ Fig. 15 ] shows a perspective view of an access device in the exploded position of the elements constituting it;
• [ Fig. 16 ] shows a perspective view of an access device in the assembled position of the elements constituting it;
• [ Fig. 17 ] shows in the form of a perspective view and a partial perspective view of the platform in the lowered position of the ramp;
• [ Fig. 18 ] shows in the form of a perspective view and a partial perspective view of the platform in the raised position of the ramp.

As mentioned above, the subject of the invention is a device 1 for access to a cockpit 25 of a vehicle 24, such as a heavy vehicle for a person who may be a person with reduced mobility, in particular in wheelchair, as well as a vehicle 24, such as a heavy vehicle, equipped with such an access device 1, as illustrated in picture 2 . Although the invention can be applied to any type of vehicle, in particular load-handling vehicles, crane-type vehicles or the like, the invention will be described more particularly below in connection with a heavy vehicle. In general, the invention tends to apply to any type of vehicle whose cabin is a high cabin. The height of the cabin makes access to this cabin difficult, in particular for a person with reduced mobility in a wheelchair. By heavy vehicle 24 is meant here a tractor vehicle, such as a road tractor or a carrier vehicle comprising a cockpit 25 and a rolling chassis supporting the cockpit 25 . Carrier vehicle is understood to mean a vehicle comprising a pilot's cabin and a support frame for the cabin capable of receiving a load-carrying platform or a box. Road tractor means a vehicle comprising a cabin and a cabin support frame, said frame being provided with means for coupling to a trailer, or a semi-trailer. In all cases, a part of the rolling frame, supporting the cockpit, extends behind the cockpit. On this part of the chassis arranged behind the cockpit, can come to rest either a load-carrying trailer or a semi-trailer in the case of a road tractor, or a load-carrying platform or a box in the case of a carrier vehicle. This vehicle is said to be heavy because its gross vehicle weight (PTAC) is generally greater than 3.5 tonnes.

Regardless of the type of vehicle, the cockpit 25 of the latter comprises a door 26 for access to the interior of the cockpit 25 and a system 27 for opening/closing the door 26. This system 27 of opening/closing of the door 26 can be equipped with a remote control 28 to allow remote control of said system 27 for opening/closing of the door 26 and movement of the door 26 between a closed position, in which the door 26 is closer to the cockpit and closes the enclosure delimited by said cockpit, and an open position, in which the door 26 is spaced from the cockpit and allows access to the enclosure delimited by said cabin piloting.

To allow such movement of the door 26, the system 27 for opening/closing the door 26 may comprise an actuator, such as a cylinder, arranged between the door and the frame of the cockpit. This actuator causes the opening of the door during its passage from the retracted position to the extended position and the closing of the door during its passage from the extended position to the retracted position. As a variant, and/or in addition, the opening/closing of the door 26 can be manual.

The access device 1, object of the invention, is intended to be arranged behind the cockpit 25 of the vehicle 24, taken with respect to the direction of travel of the vehicle 24. In particular, this access device 1 fits, in at least one configuration, inside the road clearance defined by the cockpit 25 . In other words, in at least one configuration, the access device 1 does not project beyond the right and left side walls of the cockpit 25 on the back of which it is arranged.

This access device 1 is positioned resting on the part of the chassis of the heavy vehicle behind the cockpit. Thus, this access device 1 is interposed between the back or rear face of the cockpit 25 and the trailer in front of the hearth hitched to the heavy vehicle 24 in the case of a road tractor, or between the rear face of the cabin 25 steering and the body or the active load-carrying surface of the platform in the case of a carrier vehicle.

In these cases, this access device 1 rests at least partially on the rolling chassis supporting the cockpit 25 of the heavy vehicle 24 . In the case of a load handling vehicle with counterweight behind the cockpit, the access device 1 can be positioned above the counterweight.

This access device 1 comprises, as illustrated for example in figure 2 , a base 2 that can be positioned on the heavy vehicle 24, a mast 5 of adjustable length carried by the base 2 and a platform 9 carried by the mast 5. The base 2 comprises at least one fixed part 3 and one mobile part 4 mounted mobile in the direction of a rapprochement or a separation of the fixed part 3 of the base 2. The mast 5 is coupled to the mobile part 4 of the base 2. The platform 9 is itself a telescopic platform pivotally coupled to the mast 5 by a pivot connection 12 of said horizontal axis YY' extending transversely to the longitudinal axis XX' of mast 5 for a pivoting movement of said platform 9 between a folded position against mast 5 and an extended position, called horizontal, in which it forms an angle close to 90°, that is to say within ± 15°, with the longitudinal axis XX' of the mast 5.

In the examples shown, the telescopic platform 9 comprises a plate 10 forming a floor and a support 11 of said plate 10. The plate 10 is slidably mounted on the support 11 for movement of the plate 10 between a position in which it extends at the at least partially plumb and above the support 11 and a position in which it extends at least partially cantilevered with respect to the support 11.

To allow such movement of the plate 10, at least one actuator 22, such as a cylinder, is arranged between the support 11 of the plate and the plate 10. Thus, the extended position of the actuator 22, in particular of the rod of the cylinder, corresponds to the cantilevered position of the plate 10 with respect to the support 11 while the retracted position of the actuator 22, in particular of the cylinder rod, corresponds to the position in which the plate 10 extends above and plumb with the support 11. Each time the actuator, when it consists of a jack, which can be an electric, hydraulic or pneumatic jack.

The plate 10 of the platform is a quadrangular plate. This plate 10 is delimited by two so-called transverse edges, shown at 110 in the figures and extending transversely to the sliding direction of the plate 10 on the support 11 and longitudinal edges 120. This plate 10 of the platform 9 has a side 100 called active load carrier, which forms the top face of the plate 10, and an opposite bottom face, shown at 130 in the figures. The active load support face 100 of the platform 10 is intended to receive the person with reduced mobility in a wheelchair wishing to access or descend from the cockpit 25, as will be described below. This plate 10 of the platform is equipped with guardrails 14. These guardrails 14 are here produced in the form of a simple barrier with two uprights and crosspieces connecting said uprights together. These guardrails 14 are pivotally coupled to the plate 10 around an axis perpendicular or parallel to the axis YY' of the pivot connection 12 of the platform 9 to the mast 5 for a movement of said guardrails 14 between a folded position bearing on the active load support face 100 of the plate 10 of the platform 9 and a position of use in which they extend in the upright state projecting from the active load support face 100 of the said plate 10.

In the examples shown, the plate 10 has two railings extending one along a transverse edge 110 of the plate 10 of the platform 9, the other along a longitudinal edge 120 of the plate 10 of the platform 9. The longitudinal edge of the plate equipped with a guardrail 14 is the longitudinal edge of the plate farthest from the heavy vehicle 24 in the deployed position of the platform is in the position separated from the movable part of the fixed part from the base. The transverse edge 110 of the plate 10 of the platform 9 equipped with a guardrail is the transverse edge 110 of the plate 10 closest to the mast 5 in the deployed position of the platform.

To allow the guardrails 14 to pass from the folded position to the position of use in which the guardrail forms with the plate 10 an angle close to 90° to within ± 15° and vice versa, the access device 1 understand, at each guardrail 14, an actuator, such as a jack shown at 29 in the figures. This actuator 29 is each time arranged between the plate 10 of the platform 9 and the guardrail 14. Again, the retracted position of the actuator 29 corresponds to the folded position of the guardrail 14 while the extended position of the actuator 29 corresponds to the position of use of the guardrail 14. The transverse edge 110 of the plate 10, free of guardrail 14, is equipped with a ramp 15 for access. This transverse edge 110 of the plate 10 free of guardrails 14 is the transverse edge 110 of the plate 10 farthest from the mast in the deployed position of the platform. This access ramp 15 is mounted to move between a raised position in which it projects from the active face 100 of the load support of the plate 10 and forms a stopper along one of the transverse edges 110 of the plate 10 and a lowered position in which it forms, in the horizontally positioned state of the plate 10 with the active face 100 of the load support of the plate 10 forming the top face of the plate 10, an inclined ramp with a downward slope from the face 100 active load support of said tray 10.

In the examples shown in figure 17 and 18 , the ramp 15 is equipped with at least one return member 16 in the raised position and the platform 9 is equipped with a drive control member 17 in movement of the ramp 15 from the raised position to the lowered position. This control member 17, which extends at least partially projecting from the so-called underside face 130 opposite the active load support face 100 of the plate 10, is configured to pass from an inactive position, in which the ramp 15 is raised, to an active position, in which the ramp 15 is lowered by simple bearing contact with the ground in the state driven in displacement of said platform 9 in the direction of a lowering of said platform 9 to a support position on the ground of said platform 9. This lowering of the platform 9 can be obtained by extending the mast and/or by pivoting movement of the platform in the direction of deployment.

The control member 17 is here in the form of a pivoting lever connected by a linkage to the access ramp 15 . The return member 16 in the raised position of the ramp 15 is itself formed by a spring. As a variant, and/or in addition, the ramp 15 can be returned to the raised position under the effect of its own weight. The mast 5 of adjustable length and of longitudinal axis XX' is itself a telescopic mast comprising a plurality of elements 6 mounted in sliding interlocking in a direction parallel to the longitudinal axis of the mast. These elements 6 are here each formed by a frame. These frames are interconnected by actuators, such as cylinders shown at 23 in the figures or by chains shown at 8 in the figures. Again, extending or retracting the actuators makes it possible to vary the length of mast 5.

The platform 9 is pivotally coupled to the lowermost element 6 of the mast 5 while the movable part of the base is coupled to the uppermost element of the mast in the extended position, that is to say of maximum length of the mast 5. In the example shown, the mast 5 comprises three elements mounted in sliding interlocking, namely an upper element coupled to the movable part 4 of the base 2, an intermediate element and a lower element to which the platform , in particular the support 11 of the platform 9, is pivotally connected. The mast therefore extends by displacement of the intermediate element and of the lower element relative to the upper element. The number of intermediate elements of the mast can vary between 0 and n, n being an integer. The mast therefore generally comprises at least two elements mounted in sliding interlocking, namely an upper element coupled to the movable part 4 of the base 2 and a lower element to which the platform, in particular the support 11 of the platform 9 , is pivotally connected, and from 0 to n intermediate elements.

The mobile part 4 of the base 2 to which this mast 5 is coupled is for its part, for its mobile mounting in the direction of a rapprochement or a separation of the fixed part 3 of the base 2, mounted mobile according to a direction parallel to the YY' axis of the pivot connection 12 from the platform 9 to the mast 5. Thus, the mobile part 4 and the fixed part 3 of the base 2 are connected to each other by a connection 13 to sliding interlock.

In the examples shown, as illustrated for example in figure 11 , the fixed part 3 of the base 2 is in the form of a parallelepipedic block whose base is adapted to be fixed, for example by bolting on the part of the chassis arranged at the rear of the cockpit of the heavy vehicle. This parallelepipedal block is crossed by a section of hollow beam. The mobile part of the base 4 is formed by a U-shaped stirrup inside which one of the constituent frames of the mast 5 is inserted. This frame is formed by the frame forming the upper part of the mast in the extended position of the mast 5. The stirrup is also equipped with a section of beam. The beam section of the fixed part 3 of the base 2 and the beam section of the mobile part 4 of the base 2 fit one inside the other. At least one actuator 20, such as a jack, extends between the parallelepipedic block of the fixed part 3 and the stirrup of the mobile part 4 of the base 2. The extension, that is to say the extension of the rod of the actuator, causes a movement of the mobile part 4 of the base 2 in the direction of a spacing of the fixed part 3 of the base 2 while the retraction of the rod of the actuator causes a movement of the mobile part 4 of the base 2 in the direction of a rapprochement of the fixed part 3 of the base 2.

To complete the access device 1, the latter comprises a communication system 18 . This communication system 18 can communicate with a remote terminal 19 by wired or wireless link. In the example shown, the communication system 18 is a wireless communication system, such as a radio transmitter/receiver, configured to communicate with the remote terminal 19 which can form a single and same element with the remote control 28 of the system. 27 for opening/closing the door of the cockpit 25, as described above. This communication system 18 allows an exchange of information with the remote terminal 19 held by the user of the device 1 for access. The access device 1 also comprises a control unit 7 configured to acquire data from the communication system 18 and to control the actuators 20, 21, 22, 23 according to at least said data. Said control unit 7 is in the form of an electronic and computer system which comprises for example a microprocessor and a working memory. According to a particular aspect, the control unit can take the form of a programmable automaton. That is, the described functions and steps can be implemented as a computer program or via hardware components (eg programmable gate arrays). In particular, the functions and steps performed by the control unit or its modules can be performed by instruction sets or computer modules implemented in a processor or controller or be performed by dedicated electronic components or components of the FPGA or ASIC. It is also possible to combine computer parts and electronic parts.

When it is specified that the unit or means or modules of said unit are configured to carry out a given operation, this means that the unit comprises computer instructions and the corresponding means of execution which make it possible to carry out said operation and/ or that the unit includes corresponding electronic components.

To allow access to the cockpit 25 by a person in a wheelchair who can act on the remote terminal 19, and if necessary on the remote control 28, the operation of the access device 1 is as follows. It is assumed that the fixed 3 and mobile 4 parts of the base 2 are close to each other and that the platform is in the folded position against the mast, as illustrated in figure 1 and 2 . The actuation by the person in the wheelchair of an actuation member, such as a button of the remote terminal, initially causes the movement of the mobile part of the base 2 in the direction of a separation of the fixed part of the base 2 up to a position in which the mast extends outside the chassis of the heavy vehicle above the ground, as illustrated in figure 4 . The mobile part of the base is therefore movable in a direction transverse to the front/rear direction of the heavy vehicle. In this position separated from the mobile part of the base where the mast is above the ground, the platform can be brought into the deployed position by pivoting towards the front of the heavy vehicle and the guardrails 14 in the position of use, as shown in figure 6 . The mast frames are then moved by sliding movement in the direction of an increase in the length of the mast towards the ground so that the lower end of the mast equipped with the platform comes to rest on the ground as illustrated in figure 7 . In this position, the ramp 15 for access to the platform 9 is in the lowered position and the wheelchair user can, by rolling his wheelchair, bring his wheelchair onto the platform 9 in a position in which he extends back to the mast in order to be able to exit forwards via the access ramp 15 of the platform 9. Once the wheelchair user has boarded the platform 9, the frames of the mast are driven in displacement in the direction of a reduction in the length of the mast to bring the platform 9 to the level of the floor of the cockpit, the opening of the cockpit having been previously ordered. From the start of the command to reduce the length of the mast, which is accompanied by a separation of the platform from the ground, the access ramp 15 is returned to the raised position to form a stop for the chair. This configuration is shown in figure 8 . The movement of the platform plate to a position in which the plate extends cantilevered relative to the support 11 is controlled to allow the user to come opposite the opening of the cabin of steering closed by the door. In this position, the user can transfer to the driver's seat of the cockpit before manually folding his wheelchair to store it in the cockpit. Once the transfer has been made, the user has the possibility of ordering an additional elevation of the platform to facilitate the dismantling of the chair. Subsequently, the plate 10 of the platform 9 is brought plumb and above the support 11 and the platform 9 is folded against the mast 5 before moving the movable part 4 of the base 2 and the associated mast in the meaning of bringing the fixed part closer to the base. The vehicle driven by the user can then move. Of course, the driving members of such a vehicle can be manually operated members suitable for a person in a wheelchair in a manner known per se. Similarly, the access device 1 is arranged on the heavy vehicle so that, in the position separated from the mobile part of the base from the fixed part of the base, the movement of the platform plate from the position in which it extends plumb and above the support to a position in which it extends cantilevered relative to the support is effected by moving the platform in the direction of the front of the vehicle.

To allow the user of the heavy vehicle to descend from the cockpit, the procedure is similar. Thus, from his cockpit, the user controls, using his remote terminal, the deployment of the access device 1 for bringing the plate from the platform opposite the opening of the cockpit. The user can then transfer himself manually onto the plate of the platform after having positioned his wheelchair on said plate. The plate of the platform is then driven in sliding movement to a position in which it is arranged to plumb and above the platform support. The mast frames can then be moved in the direction of an elongation of the mast to bring the platform 9 in contact with the ground. The wheelchair user can then disembark from the platform 9. Once the disembarkation has taken place, the frames of the mast can be driven in the direction of a reduction in the length of the mast 3, the platform 9 folded down along the mast and the mobile part of base 2 brought closer to the fixed part of base 2. The disembarkation process is complete. Obviously, presence and/or position sensors can be provided at different locations of the access device 1 to allow synchronized control of the movements, as described above. The control unit 7 is also configured to acquire the data from these various sensors. The design of the access device 1, as described above, allows either the driving of such a heavy vehicle by a person in a wheelchair or by a person whose mobility is not reduced.

Claims (14)

Device (1) for access to a cab (25) for piloting a vehicle (24), such as a heavy vehicle, said device (1) comprising a base (2) that can be positioned on the vehicle (24), a mast (5) of adjustable length carried by the base (2) and a platform (9) carried by the mast (5), characterized in that the platform (9) is a telescopic platform pivotally coupled to the mast (5) by a pivot connection (12) with said horizontal axis (YY') extending transversely to the longitudinal axis (XX') of the mast (5) for a pivoting movement of said platform (9) between a folded position against the mast (5) and a deployed position, called horizontal, in which it forms an angle close to 90° with the longitudinal axis (XX') of the mast (5), and in that the base (2) comprises at least one fixed part (3) and a mobile part (4) mounted to move in the direction of bringing the fixed part (3) closer to or apart from the base (2), the mast (5) being coupled to the mobile (4) of the base (2). Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to claim 1, characterized in that the movable part (4) of the base (2) is, for its movable mounting in the direction of a rapprochement or a separation of the fixed part (3) of the base (2), mounted movable in a direction parallel to the axis (YY ') of the connection ( 12) pivot from the platform (9) to the mast (5). Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to one of Claims 1 or 2, characterized in that the movable part (4) and the fixed part (3) of the base (2) are connected to each other by a connection (13) with sliding interlocking. Device (1) for access to a cab (25) for piloting a vehicle (24), such as a heavy vehicle according to one of Claims 1 to 3, characterized in that the telescopic platform (9) comprises a tray (10) forming a floor and a support (11) of said tray (10), said tray (10) being slidably mounted on the support (11) for movement of the tray (10) between a position in which it extends at least partially plumb and above the support (11) and a position in which it extends at least partially cantilevered with respect to the support (11). Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to claim 4, characterized in that the plate (10) of the platform (9), which has a face (100) called active load support, is equipped with guardrails (14) pivotally coupled to the plate (10) about an axis perpendicular or parallel to the axis (YY ') of the connection ( 12) pivot of the platform (9) to the mast (5) for a displacement of said guardrails (14) between a folded position of support on the face (100) active load support of the plate (10) of the platform ( 9) and a position of use in which they extend in the upright state projecting from the face (100) active load support of said plate (10). Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to one of Claims 4 or 5, characterized in that the plate (10) of the platform (9) is delimited by so-called transverse edges (110) extending transversely to the sliding direction of the tray (10) on the support (11) and longitudinal edges (120), and in that one of transverse edges (110) free of railings (14) is equipped with a ramp (15) for access. Device (1) for access to a cab (25) for piloting a vehicle (24), such as a heavy vehicle according to claim 6, characterized in that the access ramp (15) is mounted to move between a raised position in which it projects from the face (100) which activates the load support of the tray (10) and forms a stopper along one of the transverse edges (110) of the tray (10) and a position lowered in which it forms, in the state positioned horizontally of the plate (10) with the active face (100) of the load support of the plate (10) forming the top face of the plate (10), a ramp inclined at downward slope from the face (100) active load support of said plate (10). Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to claim 7, characterized in that the ramp (15) is equipped with at least one member (16) for returning to the raised position and in that the platform (9) is equipped with a drive control member (17) for moving the ramp (15) from the raised position to the lowered position, this control member (17) mounted movable between an inactive position in which the ramp is raised and a position active in which the ramp is lowered extending at least partially projecting from the so-called underside face (130) opposite the face (100) active load support of the plate (10) in the inactive position. Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to one of Claims 1 to 8, characterized in that the mast (5) of length adjustable is a telescopic mast comprising a plurality of elements (6), such as frames, mounted in sliding interlocking. Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to one of Claims 1 to 9, characterized in that the said device (1) comprises actuators (20, 21, 22, 23) configured at least to allow one (20, 21), the displacement drive of the mobile part (4) of the base (2) or of the platform (9), the others (22, 23), the telescoping of the platform (9) or the length adjustment of the mast (5), and a unit (7) for controlling the actuators (20, 21, 22, 23). Device (1) for access to a cab (25) for piloting a vehicle (24), such as a heavy vehicle according to claim 10, characterized in that it comprises presence and/or position sensors and in that the control unit (7) is configured to acquire data from different sensors and to control the actuators (20, 21, 22, 23) according to said data. Device (1) for access to a cabin (25) for piloting a vehicle (24), such as a heavy vehicle according to one of Claims 10 or 11, characterized in that the said device (1) comprises a preferably wireless communication system (18) capable of communicating with a remote terminal (19), and in that the control unit (7) is configured to acquire data from the communication system (18) and to control the actuators (20, 21, 22, 23) as a function of at least said data. Vehicle (24), in particular a heavy vehicle comprising a cockpit (25) and a device (1) for access to the cockpit (25) for a person, such as a person with reduced mobility in a wheelchair, characterized in that the access device (1) is in accordance with one of claims 1 to 10 and is arranged behind the cabin (25) of control taken with respect to the direction of travel of the vehicle (24) and falls within the road gauge defined by the control cabin (25) in the folded state of the platform (9) against the mast (5 ) and closer to the mast (5) of the fixed part (3) of the base (2). Vehicle (24) according to Claim 13, characterized in that the piloting cabin (25) comprises a door (26) for access to the interior of the cabin (25) and an opening/closing system (27) of the door (26), said system (27) for opening/closing the door (26) being equipped with a remote control (28) to allow remote control of said system (27) for opening/closing the gate (26).

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