JP2003230599A - Wheelchair lifter device for railroad vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair lifter device for a railroad vehicle simplified in structure and having a small housing space. <P>SOLUTION: The wheelchair lifter device 2 for the railroad vehicle enabling the getting on and off of a wheelchair is equipped with boarding plate 11 on which the wheelchair is placed, a jack mechanism 21 raised and lowered on a platform 10 while holding the boarding plate 11 to a horizontal state, a horizontal guide frame 50 extending to the region above the platform 10 from the getting on and off port 1 of the vehicle to support the jack mechanism 21 in a parallely movable manner between the inside of the vehicle and the platform 10 and a housing mechanism 49 for housing the horizontal guide frame 50 in the vehicle in an inverted state. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a wheelchair lifter device used for getting on and off passengers who use a wheelchair in a railroad vehicle whose floor is higher than the platform of a station.

[0002]

2. Description of the Related Art In a railway vehicle, if there is a step between the floor of the entrance and exit and the platform of the station, it is difficult to get on and off with a wheelchair. There is.

Conventionally, as a wheelchair lifter device of this type for a railroad vehicle, for example, a device disclosed in Japanese Patent Laid-Open No. 8-175382 is shown in FIG. A link mechanism 102 for raising and lowering the plate 101, and a storage mechanism 103 for folding and standing them upright and storing them are provided.

[0004]

However, in such a conventional wheelchair lifter device for railway vehicles,
Since the lift plate 101 and the link mechanism 102 are folded and stored, two cylinder-type actuators are required for raising and lowering and for storing, which complicates the structure and increases the storage space.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wheelchair lifter device for a railway vehicle which has a simplified structure and a small storage space.

[0006]

The first aspect of the present invention is applied to a wheelchair lifter device for a railway vehicle that allows a user to get on and off a wheelchair.

Then, a boarding plate on which a wheelchair is placed, a jack mechanism for raising and lowering the boarding plate on the platform while maintaining the horizontal state, and a jack mechanism extending from the vehicle entrance / exit to the platform to extend the cabin mechanism on the platform and on the platform. It is characterized in that it is provided with a horizontal guide frame which is supported so as to be movable in parallel between them, and a storage mechanism which stores the horizontal guide frame in an inverted manner in the vehicle.

In a second aspect based on the first aspect, the storage mechanism divides the horizontal guide frame into a fixed frame fixed to the vehicle floor and a movable guide frame rotatably connected to the vehicle floor. The movable guide frame is configured so as to be stood upright so as to be lined up with the jack mechanism on the fixed frame and stored.

In a third aspect based on the first or second aspect, the jack mechanism includes an elevating motor for raising and lowering the boarding plate, and a manual input shaft for manually rotating the elevating motor from the outside. It was characterized by.

[0010]

According to the first aspect of the invention, in the wheelchair lifter device, the horizontal guide frame is extended from the inside of the vehicle onto the platform, and the jack mechanism is moved horizontally between the retracted position inside the vehicle and the operating position on the platform. , The movement curve of the boarding plate is horizontal and vertical,
The number of actuators used can be reduced, and the number of sensors for detecting the operating position of each part can be reduced to simplify the structure.

According to the second aspect of the present invention, the movable guide frame extending on the platform is erected and stored horizontally upside down between the vehicle entrance and exit and the jack mechanism, so that the storage space of the wheelchair lifter device can be small.

According to the third invention, it becomes possible to manually operate the wheelchair lifter device when the power source or the like fails.
You can ensure safety in an emergency.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, dedicated entrances / exits 1 through which wheelchairs 6 get in and out are respectively provided on the left and right side walls of the railway vehicle, and the entrances / exits 1 are opened and closed by doors 5.
A step 3 is provided inside the entrance 1 and a wheelchair lifter device 2 is provided inside the step 3. A pair of wheelchair lifter devices 2 are provided symmetrically with respect to the center line of the vehicle, so that the wheelchair 6 can get in and out of the left and right doorways 1 of the vehicle.

As shown in FIGS. 2 and 3, the wheelchair lifter device 2 has a boarding plate 11 which extends substantially horizontally and on which the wheelchair 6 is placed, and the boarding plate 11.
Is provided with a jack mechanism 21 that moves up and down on the home 10 while maintaining the horizontal state, and a horizontal slide mechanism 41 that horizontally translates the jack mechanism 21 between the home 10 and the inside of the vehicle.

Flaps 14 and 15 are rotatably attached to the front and rear ends of the boarding plate 11. The flaps 14 and 15 are manually operated, the flaps 14 are lowered onto the platform 10, and the flaps 15 are lowered onto the floor surface 4 of the vehicle, so that the function of the slope that facilitates getting on and off the wheelchair 6 with respect to the boarding plate 11 is achieved. Is fulfilled. Further, by raising the flaps 14 and 15, the function of stopping the wheelchair 6 is fulfilled.

As shown in FIGS. 4 and 5, the jack mechanism 2
1 includes a pair of guide rails 23 and 33 fixed to the boarding plate 11, a pair of upper and lower slide bushes 24 and 34 movably supporting the guide rails 23 and 33 in the vertical direction, and one guide rail 23. And an elevating and lowering drive mechanism 26 for elevating and lowering. The other guide rail 2
Reference numeral 4 does not include a lifting drive mechanism, and is adapted to move up and down following the guide rail 23.

The guide rails 23 and 33 rise vertically from both ends of the boarding plate 11 and are mounted on the boarding plate 11 via columns 25 and 35 having a T-shaped cross section.
Fixed to. The cross-sectional shapes of the guide rails 23 and 33 are recessed at the central portions thereof, and are slidably fitted to the slide bushes 24 and 34 having the same cross-sectional shape. The slide bushes 24, 34 provided in a pair in the upper and lower sides are fixed to the storage frames 42, 43. Thus guide rail 2
The boarding plates 11 can be moved up and down while the horizontal state is maintained by the guides 3 and 33 by the slide bushes 24 and 34.

The lifting drive mechanism 26 includes a rack 27 formed on the column 25 and a pinion 2 that meshes with the teeth of the rack 27.
8 and an elevating motor 29 that rotationally drives this pinion 28
And a speed reducer 30 that decelerates the rotation of the lifting motor 29 and transmits it to the pinion 28. Lifting motor 29 and speed reducer 3
0 is attached to the storage frame 42. Lifting motor 2
When 9 rotates to one side, the boarding plate 11 rises, and when the lifting motor 29 rotates in the opposite direction, the boarding plate 11 descends.

The lift motor 29 has a built-in brake, and when the current supply is stopped, the brake is activated to prevent the boarding plate 11 from being lowered by gravity, and a fail-safe function is performed to prevent the wheelchair 6 from freely falling. . This brake is automatically released when the lifting motor 29 is operated, and can be manually released mechanically.

As a manual operating means for manually operating the lifting drive mechanism 31 of the wheelchair lifter device 2, the lifting motor 2 is used.
9 is provided with a manual input shaft 36 protruding to the outside. The manual input shaft 36 is configured such that the lifting motor 29 can be manually rotated by using a handle (not shown) that engages with the manual input shaft 36. As a result, a fail-safe function of manually raising and lowering the boarding plate 11 when the power source or the like fails is fulfilled.

The horizontal slide mechanism 41 extends from the entrance / exit 1 of the vehicle onto the platform 10 and supports a pair of horizontal guide frames 50 for supporting the jack mechanism 21 in parallel movement. The jack mechanism 21 is attached to each horizontal guide frame 50. A horizontal drive mechanism 61 for moving is provided.

4 provided in each storage frame 42, 43
The individual guide rollers 51 are in rolling contact with the respective horizontal guide frames 50, so that the boarding plate 11 moves in the left-right direction of the vehicle while maintaining the horizontal state. Horizontal guide frame 50 with a U-shaped cross section
Has upper and lower rail surfaces 52 and 53 on the inner side thereof, and the guide rollers 51 are in rolling contact with the upper and lower rail surfaces 52 and 53.

The horizontal drive mechanism 61 includes a rack 62 attached to one of the horizontal guide frames 50, a pinion 63 that meshes with the teeth of the rack 62, and the pinion 63.
A horizontal slide motor 64 that drives the rotation of the horizontal slide motor 64, and a speed reducer 65 that transmits the rotation of the horizontal slide motor 64 to the pinion 63.
With. The horizontal slide motor 64 is the storage frame 4
It is attached to 2. When the horizontal slide motor 64 rotates in one direction, the boarding plate 11 moves outward (to the right in FIG. 2), and when the horizontal slide motor 64 rotates in the opposite direction, the boarding plate 11 inwards (to the right in FIG. 2). ) Move to.

Lifting motor 29, horizontal slide motor 64
Is supplied with current from a battery (not shown) via the controller. When a command signal is input from an operation switch (not shown), this controller controls the operation of the lifting motor 29 and the horizontal slide motor 64 in a predetermined procedure through a limit switch (not shown) to keep the boarding plate 11 continuous with the floor surface 4 of the vehicle. Ascending position and home 10
Then, it automatically moves to the descending position and stops. Further, the controller moves the boarding plate 11 to an arbitrary position and stops it in response to a signal from a switch operated by the operator.

A retractable cover 70 is provided on the storage frames 42, 43 and the boarding plate 11. The cover 70 has a structure in which both ends of a cover member divided into a plurality of sheets are rotatably connected to the storage frames 42 and 43, and each cover member is slid to be opened and closed. When getting on and off, it is manually lowered as shown on the left side of FIG. 1 to cover and protect the occupants' elbows, etc., and when stowed, it is manually folded up on the storage frames 42, 43 as shown on the right side of FIG. Can be set up.

When the wheelchair lifter device 2 is activated, the horizontal guide frame 50 extends from above the vehicle floor 4 to above the platform 10 as shown on the left side of FIG. On the other hand, when the wheelchair lifter device 2 is stored, a part of the horizontal guide frame 50 stands up on the vehicle floor 4 and the space between the storage frames 42 and 43 and the vehicle entrance / exit 1 as shown on the right side of FIG. Is stored in.

Thus, as the storage mechanism 49 for storing the horizontal guide frame 50 upside down in the vehicle, the horizontal guide frame 50 is movably connected to the fixed guide frame 55 fixed to the vehicle floor 4 and the vehicle floor 4. The movable guide frame 56 is divided into the guide frames 56, and the movable guide frame 56 is stood upright so as to be lined up with the jack mechanism 21 on the fixed frame 4 and stored.

The end of the movable guide frame 56 is rotatably connected to the end of the fixed guide frame 55 via a pin 57. The movable guide frame 56 and the fixed guide frame 55 have diagonal fitting ports 56a and 55a, and the upper and lower rail surfaces 52 and 53 are continuous without a step at the operating position where the fixed guide frame 55 extends horizontally.

The movable guide frame 56 is manually driven to the operating position and the storage position. A spring 58 for holding the movable guide frame 56 in the storage position is provided.

The operation of passengers in the wheelchair 6 when getting into the vehicle from the platform 10 is performed in the following procedure. The door 5 of the entrance / exit 1 is opened. The movable guide frame 56 is manually tilted from the storage position to the operating position that extends horizontally. The horizontal slide mechanism 41 operates, the jack mechanism 21 travels on the horizontal guide frame 50, and the platform 10 is moved from inside the vehicle.
Moves up automatically. The jack mechanism 21 operates and the boarding plate 1
1 is automatically lowered onto the home 10. The flap 14 is lowered, and the wheelchair 6 gets on the boarding plate 11. Then, the cover 70 is lowered to protect the occupant's elbow and the like. The front and rear flaps 14 and 15 are set up, and the jack mechanism 21
Is activated to automatically raise the boarding plate 11 to a predetermined position higher than the vehicle floor 4. The horizontal slide mechanism 41 operates, and the jack mechanism 21 travels on the horizontal guide frame 50 via the rollers 51 and automatically moves from the top of the platform 10 to the inside of the vehicle. The flap 15 is lowered, and the wheelchair 6 descends from the boarding plate 11 to the vehicle floor 4. The movable guide frame 56 is set up and the cover 7
0 is set up and stored, and the door 5 of the entrance / exit 1 is closed.

In this way, the wheelchair lifter device 2 extends the horizontal guide frame 50 from the inside of the vehicle onto the platform 10,
Since the jack mechanism 21 is horizontally moved between the retracted position inside the vehicle and the operating position on the platform 10, the movement curve of the boarding plate 11 is in two directions, that is, the horizontal direction and the vertical direction. In addition to reducing the number of sensors, the number of sensors that detect the operating position of each part is reduced, and the structure can be simplified.

When the power source or the like fails, a brake built in the motor 29 is operated to stop the descending of the boarding plate 11 due to gravity, thereby performing a fail-safe function of preventing the wheelchair 6 from descending arbitrarily. .

When the power source or the like fails, the brake built in the motor 29 is manually released, and then the lifting motor 29 can be manually rotated by using a handle or a tool that engages with the manual input shaft 36. It is possible to manually operate the wheelchair lifter device 2 when the power source or the like fails, and it is possible to ensure safety in an emergency. Since the speed reducers 65 and 74 are reversible, the boarding plate 11
You can slide by pressing.

The horizontal guide frame 50 can be stored in the wheelchair lifter device 2 in a small space by standing the movable guide frame 56 upright and storing the inverted guide space between the vehicle entrance / exit 1 and the jack mechanism 21. As a result, the pair of wheelchair lifter devices 2 can be arranged symmetrically with respect to the center line of the vehicle, and the passenger can get in and out through the left and right entrances / exits 1 of the vehicle.

The drive mechanisms 26 and 61 are rack-mounted.
Not limited to the pinion mechanism, a drive mechanism using a wire or a push-pull chain may be provided.

The speed reducer 30 may be provided with an irreversible transmission mechanism that transmits the rotation of the lifting motor 29 to the pinion 28 but does not transmit the rotation of the pinion 28 to the lifting motor 29. This prevents the boarding plate 11 from descending due to gravity when the power source or the like fails, and performs a fail-safe function of preventing the wheelchair 6 from descending arbitrarily.

The horizontal drive mechanism 61 may not have the horizontal slide motor 64, and the jack mechanism 21 may be manually moved along the horizontal guide frame 50.

It is obvious that the present invention is not limited to the above-mentioned embodiments and various modifications can be made within the scope of the technical idea.

[Brief description of drawings]

FIG. 1 is a front view of a railway vehicle showing an embodiment of the present invention.

FIG. 2 is a plan view of the wheelchair lifter device.

FIG. 3 is a side view of the wheelchair lifter device.

FIG. 4 is a side view of a drive mechanism and the like.

5 is a sectional view taken along the line AA of FIG.

FIG. 6 is a configuration diagram of a wheelchair lifter device showing a conventional example.

[Explanation of symbols]

1 Vehicle entrance / exit 2 Wheelchair lifter device 10 Home 11 boarding plate 21 Jack mechanism 26 Lifting drive mechanism 29 Lifting motor 30 reducer 36 Manual input shaft 41 Horizontal slide mechanism 49 Storage mechanism 50 horizontal guide frame 55 Fixed guide frame 56 Movable guide frame 61 Horizontal drive mechanism 64 horizontal slide motor

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Joji Otsuka             2-4-1, Hamamatsucho, Minato-ku, Tokyo World Trade             Center Building Kayaba Industry Co., Ltd.

Claims (3)

[Claims] 1. A wheelchair lifter device for a railway vehicle that allows a user to get in and out of a wheelchair, a boarding plate on which a wheelchair is placed, a jack mechanism for moving the boarding plate up and down on a platform while maintaining the horizontal state, and a boarding / alighting of the vehicle. A horizontal guide frame that extends from the mouth to the platform to support the jack mechanism so that the jack mechanism can move in parallel between the interior of the vehicle and the platform, and a storage mechanism that stores the horizontal guide frame upside down in the vehicle. Wheelchair lifter device for rolling stock. 2. The storage mechanism divides the horizontal guide frame into a fixed frame fixed to a vehicle floor and a movable guide frame rotatably connected to the vehicle floor, and the movable guide frame is fixed frame. A wheelchair lifter device for a railway vehicle, which is configured to be stood upright so as to be lined up with an upper jack mechanism and stored. 3. The jack mechanism includes an elevating motor for elevating and lowering the boarding plate, and a manual input shaft for manually rotating the elevating motor from the outside. Wheelchair lifter device for a railway vehicle as described.