JP4272558B2 - Wheelchair lifter device for railway vehicles - Google Patents

Description

  The present invention relates to an improvement of a wheelchair lifter device used for getting on and off passengers using a wheelchair in a railway vehicle.

  In a railway vehicle, when there is a step between the floor surface of the entrance and exit and the station platform, it is difficult to get on and off with a wheelchair, and therefore, a wheelchair lifter device for raising and lowering a wheelchair has been proposed.

Conventionally, as a wheelchair lifter device for this type of railway vehicle, for example, as disclosed in Patent Document 1, as shown in FIG. 9, a lift plate 101 on which a wheelchair is mounted, and a parallel link for raising and lowering the lift plate 101 A mechanism 102 and a storage mechanism 103 for folding and storing the mechanism 102 are provided.
JP-A-8-175382

  However, in such a conventional wheelchair lifter device for a railway vehicle, since the lift plate 101 and the parallel link mechanism 102 are folded and stored, a plurality of actuators are required, and the structure becomes complicated. There was a problem of requiring a large 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 that can simplify the structure and reduce the storage space.

  1st invention is applied to the wheelchair lifter apparatus for rail vehicles which enables getting on and off of a wheelchair.

And, the boarding plate on which the wheelchair is placed, the lifting post to which the boarding plate is connected, the base frame provided on the side of the entrance of the vehicle, the lifting post by the upper link and the lower link connecting the lifting post and the base frame A parallel link mechanism that supports the base frame to be movable up and down;
Equipped with a stay damper that is interposed between the upper link and the base frame and urges the lifting post in the lifting direction, and a lifting actuator that rotates the parallel link mechanism. A horizontal support shaft that is pivotally supported between a deployment position where the boarding plate is deployed substantially horizontally with respect to the post and a standing position that stands up along the vehicle entrance and exit, and the boarding plate with respect to the lifting post. The storage support shaft is rotatably supported between the standing position and the storage position along the base frame, and the boarding plate is stored in an upright position along the base frame . The boarding plate is at the storage position. The upper link, the lower link, and the stay damper are arranged side by side and extend in a substantially vertical direction. Comprising a biasing means for biasing the ring plate from the deployed position in a direction of rotating into the standing position, and characterized in that a manually pivotable constituting the boarding plates about a horizontal supporting axis and storing the support shaft Wheelchair lifter device for railway vehicles.

  According to the first invention, since the wheelchair lifter device can be deployed and retracted without using an actuator, the number of parts can be reduced, the weight and size can be reduced, and the cost of the product can be reduced. .

  Further, by storing the boarding plate along the base frame, the storage space can be reduced so that the device does not get in the way of the vehicle.

Then, the boarding plate is urged in the lifting direction to reduce the load for raising the boarding plate.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 to 5, the entrance / exit 1 is provided on the side wall of the railway vehicle, and the entrance / exit 1 is opened and closed by a door 8. A wheelchair lifter device 2 is provided on the vehicle floor 4 inside the entrance 1.

  The wheelchair lifter device 2 includes a boarding plate 11 on which a wheelchair is placed, an elevating post 31 to which the boarding plate 11 is connected, a base frame 20 provided on the side of the entrance 1 of the vehicle, and the elevating post 31 as a base frame. The parallel link mechanism 21 supported so as to be movable up and down with respect to 20 and the lift actuator 60 that rotates the parallel link mechanism 21 are provided, and the boarding plate 11 is automatically lifted and lowered on the station platform 3.

  The wheelchair lifter device 2 includes a horizontal support shaft 40 that is rotatably supported between a deployment position where the boarding plate 11 is deployed substantially horizontally with respect to the lift post 31 and a standing position where the boarding lifter 1 stands along the entrance / exit 1. A storage support shaft 50 that supports the boarding plate 11 so as to be rotatable between the standing position and the storage position along the base frame 20 with respect to the lifting post 31 is provided. It is configured to store in a standing posture.

  As shown in FIGS. 1 and 5, the base frame 20 is disposed on the side of the vehicle entrance 1 and fastened to the vehicle floor 4 via a plurality of bolts. The wheelchair lifter device 2 is stored along the base frame 20 so as not to obstruct people getting on and off.

  As shown in FIG. 2, the parallel link mechanism 21 includes upper and lower links 22 and 23 that connect the elevating post 31 and the base frame 20, and one end of the upper and lower links 22 and 23 rotates to the elevating post 31 via shafts 24 and 25. In the middle of the upper link 22, the other end of the lower link 23 is rotatably connected to the base frame 20 via shafts 26 and 27.

  The distance between the shafts 24 and 26 of the upper link 22 and the distance between the shafts 25 and 27 of the lower link 23 are formed to be substantially equal, and the lifting post 31 is moved substantially in parallel with the rotation of the upper and lower links 22 and 23. .

  The upper link 22 is integrally formed with an arm portion 29 protruding from the shaft 26. The lifting / lowering actuator 60 is configured to rotate the arm portion 28. The lifting / lowering actuator 60 uses a unit in which an electric motor, a hydraulic pump, a hydraulic cylinder, a hydraulic switching valve, and the like are unitized, and does not require hydraulic piping or the like.

  A stay damper 41 is interposed between the upper link 22 and the base frame 20. The stay damper 41 urges the lifting post 31 in the lifting direction by the gas spring force to reduce the load on the lifting actuator 60.

  As shown in FIG. 3, an eye bracket 32 is formed at the lower end portion of the lifting post 31, and a pair of brackets 51 sandwiching the eye bracket 32 are formed at the proximal end portion of the storage support shaft 50. The support shaft 40 is provided through the eye bracket 32 and each bracket 51.

  A first stopper 33 protrudes from the elevating post 31, and an adjuster bolt 52 is provided on the storage support shaft 50, and this first stopper 33 abuts the adjuster bolt 52, thereby restricting the rotation range of the storage support shaft 50. The boarding plate 11 is held at the unfolded position where the boarding plate 11 is unfolded substantially horizontally.

  As shown in FIG. 4, the second stopper 34 protrudes from the elevating post 31, and the storage support shaft 50 abuts against the second stopper 34, whereby the rotation range of the storage support shaft 50 is restricted, and the boarding plate 11. Is held in a standing position where it stands along the entrance 1.

  A pair of stay dampers 55 are interposed between the brackets 51 of the storage support shaft 50 and the elevating posts 31 as urging means for urging the boarding plate 11 in the direction of rotating from the deployed position to the standing position. Each stay damper 55 urges the storage support shaft 50 in the lifting direction by the gas spring force, and reduces the load for raising the storage support shaft 50.

  A pair of brackets 12 are formed on the boarding plate 11, and each pin 13 is coupled to each bracket 12. The storage support shaft 50 is cantilevered from the bracket 51 and includes bearings (not shown) that rotatably support the pair of pins 13 at both ends thereof.

  Three adjustment bolts 53 are fastened to the storage support shaft 50, and ribs 14 are fastened to the boarding plate 11, and the rotation range of the boarding plate 11 is restricted by the ribs 14 coming into contact with the adjustment bolts 53. The boarding plate 11 is held at the unfolded position where it is unfolded substantially horizontally.

  First and second flaps 16 and 17 are connected to the left and right end portions of the boarding plate 11 through hinges 18 and 19, respectively, so as to be rotatable. The first flap 16 is stretched over the vehicle floor 4, and the second flap 17 is spanned over the station platform 3, so that the wheelchair can get on and off the boarding plate 11 smoothly.

  A pair of wheels 37 are attached to the back surface of the second flap 17, and each wheel 37 rolls on the station platform 3.

  The wheelchair lifter device 2 is configured as described above, and the operation during boarding is performed according to the following procedure.

  As shown in FIG. 1, with the boarding plate 11 lowered onto the station platform 3, the second flap 13 is unfolded, and the wheelchair is placed on the boarding plate 11 from the station platform 3 by self-propelled.

  A switch (not shown) is operated to extend the lifting actuator 60 to raise the boarding plate 11. At this time, the boarding plate 11 moves in parallel while being kept substantially horizontal.

When the boarding plate 11 is raised to substantially the same height as the vehicle floor 4 as indicated by a two-dot chain line in FIG. 2, the elevating actuator 60 stops. In this state, the first flap 16 is manually deployed and passed over the vehicle floor 4, and the wheelchair is moved from the boarding plate 11 through the first flap 16 into the vehicle by self-propelling.

  Operate the switch to operate the elevating actuator 60 and raise the boarding plate 11 to the retracted position.

When the boarding plate 11 comes to the retracted position, the lifting / lowering actuator 60 stops. In this state, the upper and lower links 22, 23 of the parallel link mechanism 21, the stay damper 41, and the like are stored so as to extend substantially vertically alongside each other.

  The boarding plate 11 is manually rotated around the horizontal support shaft 40 and moved from the deployed position deployed substantially horizontally to the standing position standing upright along the entrance 1.

  Subsequently, the boarding plate 11 is manually rotated around the storage support shaft 50 and moved to the standing position and the storage position along the base frame 20.

  4 and 5, the wheelchair lifter device 2 is stored along the base frame 20, and the hook 38 is spanned between the lifting post 31 and the storage support shaft 50 to lock these movements. .

  The operation at the time of getting off is performed in the reverse order of the operation at the time of getting on. After the boarding plate 11 is moved from the stowed position to the deployed position through the standing position, the parallel link mechanism 21 is operated to step the boarding plate 11. To lower.

  As described above, since the wheelchair lifter device 2 is configured to deploy and retract the boarding plate 11 without using an actuator, there is no need to provide a dedicated actuator, and the number of parts can be reduced, and the size and weight can be reduced. At the same time, product costs can be reduced.

  The wheelchair lifter device 2 can store the boarding plate 11 and the parallel link mechanism 21 along the base frame 20 to reduce the storage space so that the device does not become an obstacle in the vehicle.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

  The present invention can be applied to a wheelchair lifter device for a railway vehicle that allows a wheelchair to get on and off.

The top view of the wheelchair lifter apparatus which shows embodiment of this invention. Similarly front view. Similarly side view. Similarly front view. FIG. The front view of the wheelchair lifter apparatus which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle entrance / exit 2 Wheelchair lifter 3 Station platform 11 Boarding plate 20 Base frame 21 Parallel link mechanism 31 Lifting post 40 Horizontal support shaft 41 Stay damper 50 Storage support shaft 55 Stay damper

Claims (1)

In the wheelchair lifter device for railway vehicles that enables getting on and off the wheelchair,
A boarding plate on which a wheelchair can be placed;
The lifting post to which this boarding plate is connected,
A base frame provided on the side of the entrance of the vehicle;
A parallel link mechanism that supports the lift post so as to be lifted and lowered with respect to the base frame by an upper link and a lower link connecting the lift post and the base frame;
A stay damper interposed between the upper link and the base frame to urge the lifting post in the lifting direction;
A lifting actuator for rotating the parallel link mechanism,
The boarding plate is lifted and lowered on the station platform.
A horizontal support shaft rotatably supported between a deployment position where the boarding plate is deployed substantially horizontally with respect to the lift post and a standing position which stands up along the entrance of the vehicle;
A retracting support shaft that rotatably supports the boarding plate with respect to the lifting post between the standing position and the retracted position along the base frame;
The boarding plate is stored in a standing position along the base frame .
When the boarding plate comes to the retracted position, the upper link, the lower link, and the stay damper are arranged side by side and extend in a substantially vertical direction,
An urging means for urging the boarding plate in a direction to rotate from the deployed position to the standing position;
A wheelchair lifter device for a railway vehicle, wherein the boarding plate can be manually rotated about a horizontal support shaft and a retractable support shaft .

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