JP4673052B2 - Platform movable step device - Google Patents

Description

  The present invention relates to a movable step device for a platform which is installed on a platform in a station yard of a rail vehicle and which closes a gap formed between a train and an edge of the platform.

  The step is installed when a passenger is likely to fall into a large gap between the vehicle and the platform edge that occurs when the platform is on a curved line or on a three-line rail or when a vehicle with a small vehicle cross section enters.

There exists patent document 1 as a conventional movable step apparatus for platforms. In this publication, a rotation base shaft is provided at both ends of the step, while a support member having a rotation base shaft and a drive unit are provided on the door pocket track side of the movable home fence, and the drive unit is configured by connecting two rotation base shafts with an arm. Thus, the steps can be moved up and down efficiently and reliably by configuring with a simple mechanism for rotating the arm. The step is above the platform surface and has a feature that a step with the floor surface of the vehicle is made small and digging of the platform for installation is unnecessary.
JP 2001-328529 A

  In the known example, an arm, a rotation base shaft, and a drive unit are provided above the step so as to facilitate installation on the platform, and an immovable cover member is provided on the upper surface of the step. By arranging the step above the home surface, the step difference from the vehicle floor surface is minimized, but on the other hand, the cover covering the step is higher than the home surface, so there is a step difference on the home surface as shown in FIG. As a result, it is necessary to devise a way to eliminate the level difference from the home surface by providing a gentle slope to the cover, so there is a problem in safety when getting on and off passengers or passing along the platform. . In addition, all the step-in and out mechanisms are located at the top of the step, and the support structure for the step is provided on the movable platform fence side, so it is necessary to make the frame structure of the platform fence robust and the platform fence itself becomes heavy. There is. In addition, the step support and drive mechanism can be seen on the track side end of the door fence of the platform fence and on the platform surface, and the passage of the crew entry / exit is narrow at the passenger entrance / exit of the leading vehicle and the passenger's exit / exit. In addition, there is a possibility that a person may be pushed between the vehicle and the platform fence when getting on and off in a line area where there are many passengers, but the support and drive mechanism may be hindered and a safety problem may occur. There is sex. Furthermore, the visibility of the drive mechanism from the opposite home gives rise to a sense of intimidation, a psychological anxiety, and a loss of aesthetics in terms of design.

  Accordingly, an object of the present invention is to provide a platform movable step device having a simple structure similar to that of the known example, a safe and reliable device for passing and getting on and off passengers' homes, and a device having a simple structure. There is to do. Another object of the present invention is to provide a platform step device that ensures the safety of passengers to and from passengers and takes into account the response to a device failure.

  In order to solve the above-mentioned problems, the present invention has a configuration in which a step device is integrated into a single box and installed below the home surface, and a step support and drive mechanism is provided in the box, and the step is caused to appear and disappear by a rotating mechanism. . Rotating base shafts are arranged at two locations on the lower surface of the integrated box, and two arms having bearings at two locations are respectively fitted to the two rotating base shafts. On the other hand, a rotation base shaft is fitted to a bearing, and the rotation base shaft is fitted into two holes provided in an integral plate as a step and fixed. In order to make the steps appear and disappear in parallel by rotating the arm around the rotation base axis, an arm can be attached to the rotation base axis side of each arm in the direction perpendicular to the straight line between the bearings, and the tip of the arm can be adjusted Connect with a single stick. In the electric drive, one of the arms is further lengthened and connected to the link, and the other is connected to the slide guide and the ball screw integrated type, and the arm is pulled by pulling the link by the ball screw drive. By rotating the arm, the other arm is also rotated by being connected by an adjustable single rod, and the step is projected. To move it in the retracted direction, follow the reverse procedure described above. On the other hand, manual driving is performed by fitting a gear to an opposite rotation base shaft having an electric drive unit, and a rotation shaft having a pinion and a pulley fitted on one shaft for meshing the gear, A pulley shaft is arranged on the belt and connected to the belt. By providing a boss to which the handle is attached to the pulley shaft and manually rotating the pulley shaft to rotate the pinion and the gear via the belt, the arm can be rotated and the step can be easily moved up and down. In addition, the step is operated in conjunction with the platform fence provided separately on the platform, or in relation to the movement of the movable fence on the platform fence, or in relation to the operation of the entrance door on the vehicle side. In order to ensure safety, a mechanism that mechanically locks the step so that it does not move in the retracting direction when the step overhangs and passengers get on and off is provided, and a structure with higher safety did.

  According to the present invention, the movable step device is arranged in an integrated box provided under the platform surface, and the arms arranged in two places for driving the step for getting on and off are formed in a U shape, The center is fixed to the main body frame, one is supported by the step and the other is connected to each other with a single adjustable rod, so that the boarding step can be moved horizontally in a limited space Therefore, it is possible to realize a step device that has a simple mechanism and is easy to assemble and maintain. In addition, since it is possible to flatten the lower surface of the main body frame with an integrated box, the installation work was arranged along the side edge of the platform, so the platform surface was dug to the minimum flat. It can be easily installed by itself, and installation workability is further improved. In addition, by providing a handle that can be easily attached to rotate the arm part, it becomes possible to manually move the step when the drive part fails and the operation by the drive part becomes impossible, There is an effect that it is possible to realize a platform step device that does not hinder the operation of the vehicle even in the event of a drive unit failure. In addition, a step is provided on the movable fence portion of the platform fence provided on the platform, and the step is operated in relation to the operation of the movable fence, or the step is operated in relation to the operation of the vehicle entrance door. This has the effect of further improving the safety of passengers. In addition, by attaching a cushioning material to the step, even if the vehicle enters in a state where the step protrudes (use position) and the step collides with the vehicle, the impact force is reduced and the step device and the vehicle are damaged. Has the effect of minimizing. Further, because of the structure, the step is moved to the storage position by the collision force, so that there is an effect that safety is achieved.

The best mode for carrying out the present invention will be described.
Embodiments of the platform movable step device of the present invention will be described below with reference to the drawings.

Example 1 will be described. FIG. 1 is a plan view showing a mounting state of the platform movable step device of the present embodiment, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB in FIG. 1, 2, the movable step apparatus of the present embodiment, as shown in FIG 3 is provided at the edge 10a of the platform 10, so as to block the gap formed between the edge 10a and the vehicle platform 10 The safety of passengers when getting on and off the vehicle is ensured.

  The movable step device is provided with a step 1 for preventing a fall made of an integral plate arranged along the edge 10 a of the platform 10. Step 1 is stored in the storage portion 15 provided in the cutout portion formed in the main body frame 2 and the edge portion 10 a of the platform 10. The storage unit 15 includes a step 1 that protrudes from the storage position to an extended position on the track side and closes part or all of the gap with the vehicle, and a rotation mechanism that allows the step 1 to appear and disappear. . The storage unit 15 is further provided with a drive mechanism for driving the step 1 so that it can be moved up and down by the rotation mechanism.

The movable step device is disposed below the platform surface, and support portions having the rotation base shaft 3 are disposed at two internal bottom surfaces of the main body frame 2. Arms 5 and 6 are coupled to the rotating base shaft 3 via a bearing 4 so as to be freely rotatable in the horizontal direction, and the other of the arms 5 and 6 is fitted with a rotating base shaft 7 via a bearing 4. Are coupled together with step 1. On the side of the rotary base shaft 3 of the arms 5 and 6, arms 5a and 6a are attached in a direction perpendicular to the center line of the two bearings, bushes are attached to the positions of the same length, and a connecting rod 8 whose position can be adjusted. Connect with The arm 5a of the arm 5 further connects the short link 9 by making the arm longer. The other of the links 9 is connected to a bracket 14 that is supported by a slide guide 11 and fixed to a ball screw nut 13 of a ball screw 12. Ball screw 12 is connected to a drive motor 16 via a coupling supported on the fixed side support unit. On the other hand, on the arm 6 side, the gear 17 is coupled to the rotating base shaft 3 side so as to be integrated with the arm 6. A rotating shaft 19 having a pinion 18 that meshes with the gear 17 is disposed, and a pulley 20 is fitted in the same row as the pinion 18. On the other side, a pulley shaft 22 connected by a timing belt 21 is arranged. The pulley shaft 22 has a hexagonal head shape on the top surface and can be easily rotated with a box spanner or the like.

With this configuration, when the drive motor 16 is activated, the ball screw 12 rotates, and the bracket 14 fixed to the slide guide 11 and the ball screw nut 13 moves directly. When the fixed bracket 14 is at the position of the phantom line shown in FIG. 1, that is, when the step is at the retracted position, the link 9 is pulled and the arm 5 is moved by moving to the drive motor 16 side. Rotating force acts on the arm 5a, and the arms 5a and 6a are connected by an adjustable connecting rod 8, so that the rotating force acts on the arm 6a of the arm 6 and the arms 5 and 6 rotate in the horizontal direction. Thus, the step 1 coupled to the arms 5 and 6 can be projected to the vehicle 31 side in parallel while rotating in the horizontal direction, and moved to the use position. FIG. 1 shows a state in which step 1 protrudes to the use position, but by rotating the drive motor 16 in the reverse direction, the drive unit operates in the reverse direction, and step 1 is moved from the use position to the storage position. I can do it.

  According to the present embodiment, when placing the platform step position that closes the large gap (gap) between the vehicle 31 and the platform 10, the dug-down work of the platform 10 is minimal, and the installation on the existing platform is easy. A platform platform step device is realized. At the same time, by disposing the cover of the movable step device on the same surface as the upper surface of the normal platform, it is possible to provide a movable step device for a platform that does not give any sense of incongruity with the prior art. In addition, the drive mechanism is simple with the application of parallel links, making it easy to assemble and maintain. In addition, since the rotation base shaft of the support part supports the step from the bottom and does not disturb passengers, the interval between the rotation base shafts can be freely set.For example, the open width of the movable fence that is separately provided on the platform It can also be made narrower.

  In this device, the movement from the retracted position to the extended position in Step 1 is linked to the opening operation of the vehicle entrance door or the opening operation of the movable door portion of the platform fence 32 after the vehicle stops. And make it work. Further, the movement from the projecting position to the retracted position in Step 1 can be operated in conjunction with the door closing operation of the passenger door of the vehicle or the door closing operation portion of the movable door portion of the platform fence 32.

  Further, when the drive motor 16 fails and the drive operation becomes impossible, a pulley (belt) for manually rotating the pulley shaft 22 with a handle (such as a commercially available wrench) that can be easily attached to the pulley shaft 22 is provided. Although the combination is described, since the belt is a replacement part, a combination of multi-stage gears is also possible instead of the belt. In addition, by attaching a rubber plate or the like with the longitudinal end portions of Step 1 in an inclined shape, even if Step 1 protrudes (use position) and the vehicle enters, and Step 1 and the vehicle collide, The rubber plate serves as a cushioning material, and step 1 is returned to the retracted position by the collision force, and damage to the step device can be minimized.

  A second embodiment will be described. FIG. 4 shows another embodiment of the present invention. The gear 17 is attached directly below the arm, and the gear is directly meshed with a drive motor with a pinion to rotate the arm so that the step 1 appears and disappears. The gear 17 of FIG. 1 is similarly arranged on the other rotation base shaft 3 side, and a pinion 34 and a drive motor 35 for meshing with the gear 17 are attached. The direct drive system has a very simple structure, few parts, and good assemblability, but the drive motor 35 has a large size and projects below the lower surface of the main body frame 36. Somewhat inferior. In any of the embodiments, the overhang amount can be adjusted by the rotation angle of the arm, and a platform step device for closing a large gap (gap) between the vehicle 31 and the platform 10 can be realized. Therefore, a platform step device that does not feel uncomfortable with the prior art can be realized.

The top view which removed the upper cover of the movable step apparatus for platforms of Example 1. FIG. AA sectional drawing of FIG. BB sectional drawing of FIG. The top view of the movable step apparatus of Example 2. FIG. The movable step apparatus side view of a well-known example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Step 2 ... Main body frame 3 ... Rotation base shaft 4 ... Bearing 5 ... Arm 5a ... Arm 6 ... Arm 6a ... Arm 7 ... Rotation base shaft 8 .. Adjustable connecting rod 9 ... Link 10 ... Platform 10a ... Platform edge 11 ... Slide guide 12 ... Ball screw 13 ... Ball screw nut 14 ... Bracket 15 ... Step storage unit 16 ... drive motor 17 ... gear 18 ... pinion 19 ... rotary shaft 20 ... pulley 21 ... belt 22 ... pulley shaft 31 ... vehicle 32 ...・ Home fence 34 ... Pinion 35 ... Drive motor 36 ... Main body frame

Claims (6)

Plugging part or all of the gap formed between the train and the edge of the platform;
A storage section provided in a notch in the platform edge for storing the step;
A drive unit installed in the storage unit for driving to project and store the step;
A plurality of rotation base shafts supporting the step provided in the storage unit;
A plurality of arms that connect the rotating base shaft and the step on one end side, and connect the rotating base shaft and the drive unit on the other end side;
A connecting rod that connects the other end side of the arm connected to the first rotation base shaft and the other end side of the arm connected to the second rotation base shaft;
With
By the other end of the arm coupled to the first rotational base shaft is connected to the driving unit, the first rotational base shaft rotates, the second rotation base shaft is the driven through the connecting rod A platform movable step device , wherein the step is rotated by receiving power from the unit and the step is extended and stored. The movable step device for a platform according to claim 1,
One end side and the other end side of the arm are formed in a substantially square shape with arms extended in a substantially right angle direction, respectively. The movable step device for a platform according to claim 1 or 2,
The platform movable step device characterized in that the interval between the rotation base shafts of the support portion is narrower than the opening width of the movable boarding fence provided separately on the platform. The platform movable step device according to any one of claims 1 to 3,
At least one rotation base shaft has a gear and is connected to a pinion which is a manual drive mechanism . Plugging part or all of the gap formed between the train and the edge of the platform;
A storage section provided in a notch in the platform edge for storing the step;
A drive unit installed in the storage unit to drive the step to project and store, and a plurality of rotation base shafts supporting the step provided in the storage unit;
A plurality of arms that connect the rotary base shafts and the step on one end side, and connect the rotary base shafts and the drive unit on the other end side;
A connecting rod for connecting the arms,
With
The connecting rod connects the other ends of the arms connected to the rotation base shaft and each of the other rotation base shafts, and at least one of the plurality of rotation base shafts is directly connected to the drive unit, When the drive unit is driven, the rotation base shaft directly connected to the drive unit is rotated, and the other rotation base shaft is rotated by receiving power from the drive unit via the connecting rod, and the step is extended and stored. A movable step device for a platform. The platform movable step device according to claim 5, wherein one end side and the other end side of the arm are each formed in a substantially square shape with arms extended in a substantially right angle direction .

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