JP2002019526A - Vehicle slope device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a slope plate protrude from under the floor or to be stored under the floor by relatively light work of rotating a screw rod when a slope plate drive motor fails. A rail is provided under the floor of the vehicle so as to extend substantially parallel to the floor surface and in the vehicle width direction, and a moving body (18) is provided so as to be able to reciprocate along the rail. A base end of a slope plate 12 is pivotally attached to the moving body, and the slope plate is configured to be able to protrude outward from the vehicle from the entrance of the vehicle. A driving means 19 for reciprocating the moving body along the rail is provided with a screw rod 19a rotatably mounted under the floor over substantially the entire width of the vehicle and having a locking portion 19d formed at an end on the side opposite to the entrance and exit, and a moving body. And a slope plate driving motor 19c for rotating the screw bar forward or backward.
And When the slope plate drive motor fails, the operation handle 33 is locked to the locking portion of the screw bar so that the screw bar can be manually rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope device capable of projecting or retracting a slope plate suspended between a floor surface of a vehicle and a road surface such as a sidewalk or a roadway outside the vehicle by a motor.

[0002]

2. Description of the Related Art In general, vehicles such as buses in the city have
The floor of the vehicle is set higher than the sidewalk outside the vehicle. Therefore, one or more steps are provided at the entrance of such a vehicle. By getting on and off using this step, safety at the time of getting on and off of passengers and the like can be ensured. However, some passengers use so-called wheelchairs in which the steps cannot be used effectively. Such a wheelchair user needs to have an attendant get on and off the bus, and there is a problem that a wheelchair user cannot use the bus without an attendant.

In order to solve this problem, the mounting structure has a top panel serving as a floor of a vehicle, and a pair of side beams provided at lower portions on both sides of the panel. The platform is stored so that it can protrude outside the vehicle,
Furthermore, a compact type movable ramp assembly in which a platform is configured to be movable in a substantially linear direction between a retracted position and a protruded position is disclosed (Japanese Patent Laid-Open No. 10-1998).
236213). In this movable ramp assembly, a driving means for driving the platform is provided with a ball screw rotatably mounted on the mounting structure, and an alignment guide block fixed to the alignment structure connected to the platform and receiving the ball screw. And a motor for driving the ball screw. A moving guide for guiding the platform from the horizontal state to the inclined state or from the inclined state to the horizontal state is provided in the side beam. Further, a pivoting door seal is pivotally attached to the opening of the mounting structure via a hinge, and the seal is urged by a spring mechanism in a direction to close the opening.

In the movable ramp assembly constructed as described above, when the driving means drives the platform to shift the platform from the retracted position to the protruding position, the platform moves along the moving guide and tilts. Since the front end of the vehicle contacts the road surface and is bridged between the floor surface of the vehicle and the road surface, the wheelchair user can smoothly get on and off the vehicle. On the other hand, if the motor fails,
After the manual release bar is locked to the outer surface of the pivot door seal and the pivot door seal is opened, the platform can be deployed by locking and pulling the manual release bar to the outer edge of the platform. ing.

[0005] Between the platform and the mounting structure, there is provided an interlocking mechanism for locking the platform in the mounting structure when the platform is in the storage position. The interlocking mechanism includes a pivot pin that is protrudably mounted on the mounting structure, a spring that biases the pivot pin in a protruding direction, and a solenoid that retracts the pivot pin against the elastic force of the spring. , A triangular stop fixed to an alignment structure connected to the platform. In this mutual locking mechanism, when the platform is deployed by operating the remote control switch, the solenoid retracts the pin and the triangular stop member is released from the pin, so that the platform can be deployed by rotating the ball screw by the motor. . On the other hand, when the platform is accommodated, as the platform moves from the deployed position to the accommodated position, the pivot pin is retracted by the hypotenuse surface of the triangular stop member, and when the pivot pin passes through the hypotenuse surface,
The platform is protruded by the elastic force of the spring to lock the platform in the storage position.

[0006]

However, in the compact type movable ramp assembly disclosed in the above-mentioned conventional Japanese Patent Application Laid-Open No. 10-236213, when the motor fails and the platform is pulled out using the manual release bar. In addition, there is a problem that the ball screw and the motor must be rotated, and an extremely large drawing force is required. Also, in the conventional compact type movable ramp assembly described above, since the platform deployment operation of the remote control switch for controlling the motor and the pin retracting operation of the solenoid are linked, the motor breaks down and the platform is manually operated. At the time of withdrawal, the platform must be manually pulled out with the pivot pin manually withdrawn against the elastic force of the spring, and there has been a problem that the operation is extremely troublesome. SUMMARY OF THE INVENTION An object of the present invention is to provide a slope device for a vehicle in which a slope plate can be protruded from under the floor or stored under the floor with relatively light work of rotating a screw rod when a failure of a slope plate drive motor occurs. is there. It is another object of the present invention to provide a slope device for a vehicle, which eliminates the need to manually remove a lock pin from a stopper even if a slope plate driving motor fails.

[0007]

The invention according to claim 1 is
As shown in FIG. 1, FIG. 2 and FIG.
Rails 16 and 17 provided below and extending substantially parallel to the floor surface and in the vehicle width direction, a movable body 18 that can reciprocate along the rails 16 and 17, and the movable body 18 along the rails 16 and 17 Driving means 19 for reciprocating the moving body 1
8. A slope device for a vehicle comprising: a slope plate 12 pivotally attached to the vehicle 8 and projecting outward from the entrance / exit 10b of the vehicle 10 and having a tip end capable of contacting a road surface in a protruding state;
A screw rod 19a having a driving means 19 rotatably mounted under the floor over substantially the entire width of the vehicle in parallel with the rails 16 and 17 and having a locking portion 19d formed at an end on the side opposite to the entrance;
It has a nut 19b fixed to the moving body 18, screwed to the screw rod 19a and movable along the screw rod 19a by rotation of the screw rod 19a, and a slope plate drive motor 19c for rotating the screw rod 19a forward or reverse. When the slope plate drive motor 19c fails, the operation handle 33 is locked to the locking portion 19d of the screw bar 19a so that the screw bar 19a can be manually rotated.

In the vehicle slope device according to the first aspect of the present invention, when the moving body 18 is driven by the driving means 19 to protrude from the underfloor together with the slope plate 12, the slope plate 12 has its tip end. Since the vehicle 10 descends and inclines, and is bridged between the floor surface and the road surface of the vehicle 10, the wheelchair user can smoothly get on and off the vehicle using the slope plate 12. On the other hand, the slope plate drive motor 19
In the event that c is out of order, the operation handle 33 is locked to the locking portion 19d of the screw rod 19a, and when the screw rod 19a is manually rotated, the slope plate 12 is projected from under the floor or stored under the floor. Can be.

The invention according to claim 2 is the invention according to claim 1, and furthermore, as shown in FIG. 1, FIG. 2, FIG. 14, and FIG. And a lock means 6 configured to allow the slope plate 12 to protrude from under the floor by a lock pin driving body 67 that locks or releases the lock pin 66 with the stopper 65.
4, an opening / closing lid 56 for opening and closing a through hole 14a for allowing the slope plate 12 to protrude or retract from under the floor, an opening / closing lid sensor 68 for detecting opening / closing of the opening / closing lid 56, and a detection output of the opening / closing lid sensor 68. 2. The vehicle slope device according to claim 1, further comprising a controller configured to control the lock pin driving body based on the controller. In the vehicle slope device according to the second aspect, a slope plate drive motor 19 is provided.
Even if c is out of order, the controller 76 controls the lock pin driver 67 based on the detection output of the open / close lid sensor 68 when the open / close lid 56 is opened, and pushes the lock pin 66 to the stopper 6.
Remove from 5. As a result, even if the lock pin 66 is not manually disengaged from the stopper 65, the operation handle 33 is locked to the locking portion 19d of the screw rod 19a and the screw rod 19a is locked.
The slope plate 12 can be protruded from under the floor or can be stored under the floor simply by manually rotating the slope plate 12.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIGS. 1 to 4, in the present embodiment, a vehicle 10 is a route bus, and a slope plate 12 which is bridged between a floor surface and a road surface through a doorway 10 b under a floor 10 a of the bus 10. Is provided. A step 13 is provided at the entrance 10b of the bus 10 to make it easy for passengers to get on and off (FIGS. 2 and 3), and the step 13 is installed at a height almost intermediate between the floor surface and the road surface. . The inner edge of the step 13 and the side edge of the floor 10a are connected by a vertical plate 14, and the slope plate 12 is stored under the floor so as to protrude from a through hole 14a formed in the vertical plate 14 (FIG. 3). ). It should be noted that the vehicle is not limited to a route bus, but may be a shuttle bus to one of various facilities such as a facility for the physically challenged or a nursing home, a one-box car, or another vehicle.

The slope device 11 includes a pair of rails 16 and 17 (FIG. 4) provided under the floor substantially in parallel with the floor surface, and a movable body 18 reciprocable along the rails 16 and 17.
A driving means 19 for reciprocating the moving body 18 along the pair of rails 16 and 17; and the slope plate 12 having a base end pivotally attached to the moving body (FIGS. 1 to 4). The pair of rails 16 and 17 extend in the vehicle width direction at predetermined intervals, and are provided with a pair of channel-like first rails 16a and 16a.
17a, and a pair of channel-like second rails 16b, respectively accommodated in the first rails 16a, 17a and having a cross section slightly smaller than the first rails 16a, 17a, respectively.
17b (FIG. 4). The moving body 18 includes a board 18a provided between a pair of rails 16 and 17,
8a, and has a pair of board holding portions 18b, 18b fixed to both ends of the board 8a and extending in the vehicle width direction (FIG. 1). The second rails 16b, 17 are provided on the outer surfaces of the pair of substrate holding portions 18b, 18b.
A plurality of first rollers 21 that roll inside b are rotatably mounted (FIGS. 1, 4, and 9).

The driving means 19 is provided with a screw rod 19a provided substantially at the center between the pair of rails 16 and 17 so as to extend in the vehicle width direction.
A nut 19b attached to the lower surface of the substrate 18a and screwed to the screw rod 19a via a steel ball (not shown), and a slope plate drive motor 19c having a built-in speed reducer for rotating the screw rod 19a. (FIG. 1). The screw rod 19a is rotatably mounted on a bottom plate 28 bridged between the lower surfaces of the pair of first rails 16a, 17a via a pair of bearings 29, 30.
9 on the bottom plate 28 in the vicinity. Reference numeral 34 in FIG.
Reference numerals 35 and 36 denote gears for transmitting the rotational force generated by the motor 19c to the screw rod 19a by increasing its rotational speed. At the base end of the screw rod 19a, that is, at the end close to one of the bearings 29, there is formed a quadrangular prism-shaped locking portion 19d capable of locking the operation handle 33. A flip-up lid 10d facing the locking portion 19d is provided on the side of the bus opposite to the entrance 10b (FIG. 3). Further, when the output shaft of the motor 19c is rotated, the motor 19c functions as a generator. In other words, when the output shaft of the motor 19c is rotated from the outside, the motor 19c functions as a motor brake in which electromagnetic force acts in a direction to prevent the rotation.

A pair of support arms 26 and 27 are pivotally attached to the movable body (FIGS. 1 and 10). In particular,
Near the center of the pair of support arms 26 and 27 is the first pin 3 at the end of the pair of substrate holding portions 18b and 18b on the entrance side.
They are pivotally connected via the first and the first 31, respectively. The distal ends of the pair of support arms 26 and 27 are provided so as to extend in the vehicle width direction toward the entrance 10b, and the base ends extend toward the opposite side to the entrance 10b and are bent in a direction approaching each other. (FIG. 1). A first cam follower 41 is rotatably mounted outside the distal ends of the support arms 26 and 27 (FIGS. 1 and 11), and a second cam follower 42 is rotatably mounted inside the base ends of the support arms 26 and 27. (FIGS. 1 and 5 to 8). Also, a pair of support arms 2
A receiving plate 37 is erected between the distal ends of the slope plates 6 and 27, and the base end of the slope plate 12 is fixed to the support arms 26 and 27 via the receiving plate 37 (see FIGS. 1, 3, and 5 to 5). (FIG. 8). The slope plate 12 has a pair of flanges 12 on both side edges.
a, 12a, is formed in a substantially inverted hat shape in cross section, protrudes outward from the bus from the entrance / exit 10b, and in this protruding state, the tip is configured to be able to contact the road surface (FIGS. 1, 2, and 11 to 11) (FIG. 13).

A pair of first guide members 51 are provided at the ends of the pair of second rails 16b and 17b on the entrance / exit side.
The first guide member 51 is provided so as to protrude toward the entrance 10b in the longitudinal direction of 6b and 17b so that the tip end of the slope plate 12 descends and slopes when the slope plate 12 projects outside the bus. Guide the first cam follower 41 (FIG. 5)
~ FIG. 8). A pair of rails 16 and 17 are provided in parallel with the rails 16 and 17 on the lower surface of a pair of bridge members 43 and 44 provided on the upper surfaces of the pair of first rails 16a and 17b. The second guide member 52 guides the second cam follower 42 such that when the slope plate 12 protrudes outward from the bus, the tip end of the slope plate 12 is lowered and inclined. (FIGS. 5-8). The first guide member 51 has an inclined portion 51a that is inclined downward toward the entrance 10b.
The guide member 52 includes a horizontal portion 52a, a first inclined portion 52b that is gently inclined upward toward the entrance 10b,
A second inclined portion 52c that relatively inclines upward relatively sharply toward the entrance 10b. The first cam follower 41 is configured to roll in the second rail 17b when located in the second rail 17b (FIG. 5).

A pair of compression coil springs 46, 46 are interposed between the pair of support arms 26, 27 and the pair of substrate holders 18b, 18b, respectively (FIGS. 1 and 5 to 8). A rod 47 is loosely inserted into the compression coil spring 46, and a plate 48 is fixed to one end of the rod 47. The plate 48 is provided at a substantially central portion of the support arm 27 above the second pin 3 at a predetermined distance from the first pin 31.
2 (FIG. 10). The rod 47 is a rectangular plate-like rod guide 49 fixed to the substrate holding portion 18b.
The two lock nuts 54, 54 are screwed into the other end of the rod 47 via a spring receiving member 53 (FIGS. 1 and 5 to 8). Compression coil spring 4
Numeral 6 is interposed between the rod guide 49 and the spring receiving member 53, and is configured to prevent the tip of the slope plate 12 from suddenly descending when the slope plate 12 projects. That is, the moment due to the weight of the slope plate 12 when the slope plate 12 protrudes is set slightly larger than the moment by the elastic force of the compression coil spring 46. The elastic body is not a compression coil spring but a tension coil spring.
A leaf spring, rubber or other elastic body may be used.

An upper edge of an opening / closing lid 56 is pivotally attached to a side edge of the floor 10a, and the opening / closing lid 56 closes a through-hole 14a formed in the vertical plate 14 in a releasable manner (FIGS. 2, FIG. 2). 3 and FIGS. 5 to 8). Reference numerals 57 and 58 in FIG. 2 denote a pair of double doors which openably close both sides of the through hole 14a. A bottom plate 2 between a pair of rails 16 and 17
A first flat bar 61 extending in the vehicle width direction is fixed on the upper surface 8 and the first flat bar 61 on the lower surface of the substrate 18a.
Are rotatably mounted via roller brackets 63 (see FIGS. 1 and 4). By sandwiching the first flat bar 61 between the plurality of second rollers 22, rattling of the moving body 18 in the width direction is prevented. The bottom plate 28 and the substrate 18a are provided with lock means 64 for fixing the slope plate 12 in a state of being stored under the floor and allowing the slope plate 12 to project from under the floor (FIGS. 1 and 15). The locking means 64 includes an angled stopper 65 fixed to the lower surface of the substrate 18a and a pair of bearings 64a, 64 on the bottom plate 28.
a and a large number of teeth 66a on the side.
And a lock pin drive motor 67 in which a pinion 67b meshing with the teeth 66a is formed at the tip of the output shaft 67a. The lock pin 66 is a rack. The lock pin 66 protrudes and is locked to the stopper 65 to prevent the slope plate 12 from protruding outside the bus (FIG. 15B).
15 is released, the slope plate 12 is allowed to protrude outward from the bus.
(A)). In this embodiment, although a motor is used as the lock pin driving body, an air cylinder or another driving body may be used.

A pair of flanges 12a of the slope plate 12,
A plurality of third rollers 23 and a plurality of fourth rollers 24 are rotatably mounted on the lower surface of the 12a at predetermined intervals (FIGS. 1, 12, and 13). The plurality of third rollers 23 roll on the side surface of the second flat bar 62 fixed to the inner surface of the first rail 17a above the second rail 17b (FIG. 12), and the plurality of fourth rollers 24 rotate on the upper surface of the second rail 17b. It rolls (FIG. 13). The slope plate 12 is formed by the third roller 23.
Of the fourth roller 24 is prevented from rattling in the width direction.
Accordingly, the movement resistance of the slope plate 12 at the time of reciprocation is reduced.

An open / close lid sensor 68 for detecting the open / close of the open / close lid 56 is provided below the vertical plate 14.
4) On the bottom plate 28, a pair of slope plate entrance / exit sensors 69 for detecting the entrance / exit of the slope plate 12 by detecting the position of the moving body 18 are provided (FIGS. 1 and 14).
The position of the lock pin 66 is detected by a pair of lock pin access sensors 71 (FIGS. 1 and 14), and
The opening / closing of the door 10e (FIG. 3) for opening and closing b is detected by the door sensor 72 (FIG. 14). Switch housing 10c provided on the side surface near the entrance 10b of bus 10
(FIG. 2) houses a slope plate operation switch 73 for switching the slope plate drive motor 19c to forward rotation, reverse rotation, or stop (FIG. 14), and the above-mentioned slope plate operation switch 73 is provided in the bus seat (not shown). There is provided a driver side slope plate switch 74 for switching the state to a usable state or an unusable state (FIG. 14). The opening / closing lid sensor 68, the slope plate in / out sensor 69, the lock pin in / out sensor 71, and the entry / exit door sensor 72 are constituted by limit switches. Further, each detection output of the open / close lid sensor 68, the slope plate in / out sensor 69, the lock pin in / out sensor 71, the entrance / exit door sensor 72, the slope plate operation switch 73, and the driver side slope plate switch 74 is connected to the control input of the controller 76,
The control output of the controller 76 is the slope plate drive motor 1
9c and the lock pin drive motor 67 (FIG. 14). Reference numeral 77 in FIGS. 1 and 4 denotes a tapered plate provided on one side surface of the second roller 22. When the slope plate in / out sensor 69 comes into contact with or separates from the plate 77, the slope plate 12 The position of the moving body 18 is configured to be detected. In addition, when the slope plate drive motor 19c is turned off in the driver's seat, the voltage application to the slope plate drive motor 19c is completely shut off, and the function of the motor 19c as a generator (motor brake) is lost. A normally closed emergency switch 75 (FIG. 14) is provided.

A method of using the bus slope device configured as described above will be described. When the driver of the route bus 10 visually recognizes that a wheelchair user is at a stop while traveling, the driver stops the bus 10 at the stop, opens the entrance / exit door 10e, and then sets a driver side slope plate provided at the driver's seat. Switch 7
4 is turned on, and the opening / closing lid 57 is further lifted up so that a pair of
Open 7,58. The controller 76 is a door sensor 7
2. The lock pin drive motor 6 is controlled based on the detection outputs of the driver side slope plate switch 74 and the open / close lid sensor 68.
7, the lock pin 66 is retracted from the locked position to the unlocked position, and the slope plate operation switch 73 is switched to a usable state. Thus, when the driver operates the slope plate operation switch 73, the slope plate drive motor 19c rotates forward. The forward rotation of the slope plate driving motor 19c causes the screw rod 19a to rotate forward, and the nut 19b moves to the entrance / exit side along the screw rod 19a.
The support arms 26 and 27 and the slope plate 12 also move toward the entrance. At this time, the first roller 21 and the first cam follower 41 roll in the first rails 16a and 17a, and the second roller 22 rolls on both side surfaces of the first flat bar 61.
The third roller 23 rolls on the side surface of the second flat bar 62, and the fourth roller 24 rolls on the upper surfaces of the second rails 16b and 17b. As a result, the moving body 18, the support arms 26, 2
7 and the slope plate 12 move smoothly.

When the slope plate 12 projects outside the bus from the entrance 10b and the first cam follower 41 starts rolling on the inclined portion 51a of the first guide member 51, the slope plate 1
2 is lowered, and the slope plate 12 is
The second cam follower 42 abuts on the lower surface of the horizontal portion 52a of the second guide member 52 because it is inclined downward toward the outside of the bus together with 27 (FIG. 6). When the slope plate 12 moves to the outside of the bus in this state, the first cam follower 41
Is separated from the inclined portion 51a and the second cam follower 42 rolls on the horizontal portion 52a, so that the slope plate 12 and the support arms 26 and 27 are maintained at a predetermined gentle inclination angle. When the second cam follower 42 starts rolling on the lower surface of the first inclined portion 52b, the tip of the slope plate 12 descends, the inclination angle of the slope plate 12 and the support arms 26 and 27 increases (FIG. 7), and the second cam follower When the roller 42 starts rolling on the lower surface of the second inclined portion 52c, the tip of the slope plate 12 further descends, and the inclination angle of the slope plate 12 and the support arms 26 and 27 further increases (FIG. 8). For this reason, the tip of the slope plate 12 contacts the sidewalk (road surface), and the slope plate 12
It is hung between the floor of No. 0 and the sidewalk. When the open / close lid 56 is rotated in the direction of the solid arrow in FIG. 8 in this state, the open / close lid 56 is bridged from the side edge of the floor 10 a to the base end of the slope plate 12. As a result, the driver or the attendant pushes the wheelchair (while the wheelchair user is on the wheelchair) and raises the slope plate 12 and the opening / closing lid 56, so that the wheelchair user can be smoothly put on the bus.

When the ride of the wheelchair user is completed, the driver flips up the open / close lid 56 and then operates the slope plate operation switch 73 to reverse the slope plate drive motor 19c. The screw rod 1 is rotated by the reverse rotation of the slope plate driving motor 19c.
9a is reversed, and the nut 19b moves toward the anti-egress / exit side along the screw rod 19a.
6, 27 and the slope plate 12 also move to the side opposite to the entrance.
At this time, while the second cam follower 42 rolls on the lower surfaces of the second inclined portion 52c and the first inclined portion 52b and further rolls on the lower surface of the horizontal portion 52a, the inclination angle of the slope plate 12 becomes gradually gentle. When the first cam follower 41 comes into contact with the inclined portion 51a and starts rolling on the inclined portion 51a, the second cam follower 42 separates from the lower surface of the horizontal portion 52a, and the first cam follower 41 rolls in the second rails 16b and 17b. As it begins to move, the slope plate 12 becomes horizontal. When the open / close lid 56 is closed after the slope plate 12 is stored under the floor and the pair of double doors 57 and 58 is closed, the controller 76 causes the lock pin 66 to protrude to the lock position by the lock pin drive motor 67 and engages with the stopper 65. To stop. Further, when the driver returns to the driver's seat, turns off the driver's seat side slope plate switch 74, and closes the entry / exit door 10e, the bus 10 can be started. When a wheelchair user who gets on the bus 10 is dropped off at another stop, the same operation as described above is performed. In this way, the wheelchair can be put on and off the bus 10 together with the user in a short time with relatively light work.

On the other hand, if the slope plate drive motor 19c fails, the driver opens the door 10e, turns on the driver side slope plate switch 74 and turns off the emergency switch 75, and further opens and closes the open / close lid 57. Is opened to open the pair of doors 57, 58. The controller 76 drives the lock pin drive motor 67 to retract the lock pin 66 from the lock position to the unlock position based on the detection outputs of the door sensor 72, the driver side slope plate switch 74 and the open / close lid sensor 68 ( FIG. 15 (a)). Emergency switch 7
By turning off 5 as described above, the application of the voltage to the slope plate drive motor 19c is completely cut off. In this state, when the lid 10d provided on the side of the bus opposite to the entrance 10b is jumped up and locked to the locking portion 19d, and the screw rod 19a is manually rotated, the slope plate driving motor 1
Since 9c has lost its function as a generator (motor brake), the screw rod 19a can be rotated with a relatively small torque, and the slope plate 12 can smoothly project from under the floor. After the slope plate 12 is bridged between the floor and the road surface, if the opening / closing lid 56 is erected from the side edge of the floor 10a to the base end of the slope plate 12, the wheelchair user can be put on the wheelchair in the same manner as described above. The wheelchair can be smoothly put on the bus by pushing the wheelchair while riding on it, and raising the slope plate 12 and the opening / closing lid 56. After the ride of the wheelchair user is completed, the screw rod 19a is rotated in the opposite direction to the above by using the operation handle 33, and the slope plate 12 is stored under the floor. When closed, the controller 76 controls the lock pin drive motor 67 so that the lock pin 66
Is projected to the lock position and locked to the stopper 65 (FIG. 15B). Thus, the slope plate driving motor 1
Even if 9c breaks down, the operation rod 33 is used to remove the screw rod 1
9a is a relatively light work of rotating the slope plate 1
2 can project from under the floor or be stored under the floor.

[0023]

As described above, according to the present invention, the base end of the slope plate is pivotally attached to the movable body reciprocating along the rail under the floor, and the movable body is reciprocated along the rail. A screw rod having a locking portion formed at the end on the side opposite to the doorway, a nut fixed to the moving body and screwed to the screw rod,
By having a slope plate drive motor that rotates the screw bar forward or backward, when the slope plate drive motor fails, the operation handle is locked to the locking portion of the screw bar, and the screw bar is rotated manually, The slope plate can project from under the floor or be stored under the floor. Also, in comparison with the conventional compact type movable ramp assembly which requires an extremely large pulling force when pulling out the platform using the manual release bar due to the failure of the motor, the operation handle is rotated by the screw rod according to the present invention. It can be performed with extremely light work of rotating.

Further, the locking means fixes the slope plate in a state of being stored under the floor and allows the slope plate to protrude from under the floor, the opening / closing lid closes the through hole so as to be openable, and detects the opening / closing of the opening / closing lid. If the controller is configured to control the lock pin driving body of the locking means based on the detection output of the lid sensor, even if the slope plate driving motor has failed,
The controller controls the lock pin driver based on the detection output of the open / close lid sensor when the open / close lid is opened, and releases the lock pin from the stopper. As a result, without manually releasing the lock pin from the stopper, the slope plate can be projected from under the floor or beneath the floor only by locking the operation handle to the locking portion of the screw rod and rotating the screw rod manually. Can be stored.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of a vehicle slope device according to an embodiment of the present invention.

FIG. 2 is an essential part perspective view showing a state in which the slope plate is projected outward of the vehicle and is hung between a floor surface and a road surface.

FIG. 3 is a sectional view taken along line AA of FIG. 4;

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a sectional view taken along line CC of FIG. 4;

FIG. 6 is a cross-sectional view corresponding to FIG. 5, showing a state in which the first cam follower is rolling on an inclined portion of the first guide plate and the second cam follower is rolling on a horizontal portion of the second guide plate.

FIG. 7 is a cross-sectional view corresponding to FIG. 5, showing a state where the second cam follower is rolling on the first inclined portion of the second guide plate.

FIG. 8 is a cross-sectional view corresponding to FIG. 5, showing a state in which the second cam follower is rolling on the second inclined portion of the second guide plate.

FIG. 9 is a sectional view taken along line DD of FIG. 5;

FIG. 10 is a sectional view taken along line EE of FIG. 5;

FIG. 11 is a sectional view taken along line FF of FIG. 5;

FIG. 12 is a sectional view taken along line GG of FIG. 5;

FIG. 13 is a sectional view taken along line HH of FIG. 5;

FIG. 14 is a block diagram illustrating control of a slope plate drive motor and the like based on detection outputs of sensors and the like by a controller.

FIG. 15 is an essential part perspective view showing a process in which a lock pin of a lock unit shifts from an unlocked position to a locked position.

[Explanation of symbols]

 Reference Signs List 10 bus (vehicle) 10a floor 10b entrance 11 slope device 12 slope plate 14a through hole 16, 17 rail 18 moving body 19 drive means 19a screw rod 19b nut 19c slope plate drive motor 19d locking portion 33 operating handle 56 opening / closing lid 64 Locking means 65 Stopper 66 Lock pin 67 Lock pin drive motor (Lock pin drive) 68 Open / close lid sensor 76 Controller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shuichi Sano 1-125 Shirite, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside Hino Auto Body Co., Ltd. (72) Inventor Takashi Hase 2-315 Kamikatai, Nishi-ku, Nagoya-shi, Aichi Address Toshintec Co., Ltd. (72) Inventor Mayu Sahashi 2-315 Kamikatai, Nishi-ku, Nagoya-shi, Aichi F-term in Toshintec Co., Ltd. 3D022 AA02 AB08 AC02 AD02 AE08 AE11 AE13

Claims (2)

[Claims] 1. A rail (16, 17) provided under a floor (10a) of a vehicle (10) substantially in parallel with a floor surface and extending in a vehicle width direction, and along the rails (16, 17). Reciprocating moving body (18)
Driving means (19) for reciprocating the moving body (18) along the rails (16, 17); and a vehicle (10) having a base end pivotally connected to the moving body (18). A slope device for a vehicle comprising a slope plate (12) configured to protrude from the mouth (10b) to the outside of the vehicle and to be able to contact a road surface in a protruded state, wherein the driving unit (19) is A screw rod (19a) rotatably mounted under the floor over substantially the entire width of the vehicle (10) in parallel with the rails (16, 17) and having a locking portion (19d) formed at an end on the side opposite to the entrance / exit port. A nut (19b) fixed to the moving body (18), screwed to the screw rod (19a), and movable along the screw rod (19a) by rotation of the screw rod (19a); Slope plate drive motor to rotate screw bar (19a) forward or reverse
(19c), when the slope plate drive motor (19c) fails, the screw rod
A slope device for a vehicle, wherein the operating handle (33) is locked to a locking portion (19d) of the (19a) so that the screw rod (19a) can be manually rotated. 2. The locking of the lock pin (66) to the stopper (65) or the release of the lock pin (66) from the fixing of the slope plate (12) in the storage state under the floor and the allowance of the slope plate (12) from the floor below the floor. A lock means (64) configured to be performed by a lock pin driving body (67), and an opening / closing opening / closing mechanism for opening / closing a through hole (14a) for allowing the slope plate (12) to protrude or store from under the floor. A lid (56), an open / close lid sensor (68) that detects opening / closing of the open / close lid (56), and a controller that controls the lock pin driver (67) based on a detection output of the open / close lid sensor (68). The slope device for a vehicle according to claim 1, further comprising (76).