JP2010195241A - Step device for platform - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a step device for a platform capable of shortening a position adjusting time of linear guides at an installation site. <P>SOLUTION: The step device 1 for the platform is equipped with: a case 3 to be embedded in a platform 100; a frame 4 provided movably back and forth within the case 3 and provided with a step 2 installed at the tip in its advancing direction; a plurality of linear guides 5 for guiding the frame 4 in directions of both back and forth; a drive mechanism 6 that advances and contacts the frame 4; and a mounting plate 7 on which a plurality of the linear guides 5 are fixed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a platform step device that prevents a passenger from falling between a platform and a stopped vehicle.

Conventionally, as a platform step device for preventing a passenger from falling between a platform and a stopped vehicle, a device described in Patent Document 1 is known.
The platform step device is provided at an end of the platform, and automatically advances the step toward the vehicle when the vehicle arrives and stops. This fills the gap between the platform and the vehicle. And when a passenger gets on and off, the step is retracted to the platform side.

JP 2008-44543 A

The platform step device described in Patent Document 1 has a plurality of linear motion guides arranged so as to extend in a direction substantially perpendicular to the direction along the platform, and the steps are guided along the linear motion guides. Is done. Each of the plurality of linear motion guides is fixed to the base plate of the platform step device at a predetermined interval. However, if the mutual positions are out of order, the steps cannot be smoothly guided, which becomes a problem. .
In particular, when a base plate to which a plurality of linear motion guides are fixed is manufactured by welding a plurality of mold materials or the like, the relative positions of the plurality of linear motion guides are likely to be incorrect.
For this reason, in the conventional configuration, it takes a lot of time to adjust the relative positions of the plurality of linear motion guides at the installation site.

  In view of the above circumstances, an object of the present invention is to provide a platform step device capable of shortening the time for adjusting the position of the linear motion guide at the installation site.

  In order to achieve the above object, the platform step device according to the present invention has several features as follows. That is, the platform step device of the present invention includes the following features alone or in combination as appropriate.

  In order to achieve the above object, the first feature of the platform step device according to the present invention is that a case embedded in the platform, a step is provided in the case, and a step is provided at the tip in the advance direction. And a frame, a plurality of linear motion guides for guiding the frame in the advancing and retreating direction, a drive mechanism for advancing and retracting the frame, and a mounting plate to which the plurality of linear motion guides are fixed.

  According to this configuration, since the plurality of linear motion guides are fixed to one mounting plate, the relative positioning of the plurality of linear motion guides can be performed easily and reliably. As a result, it is possible to reduce the trouble of adjusting the position of the linear motion guide in the field, and it is possible to shorten the position adjustment time.

  A second feature of the platform step device according to the present invention is that the drive mechanism moves the frame forward and backward with rotation of the motor, and the motor is fixed to the mounting plate. It is.

  According to this configuration, since the motor and the linear motion guide are provided on one mounting plate, the relative positioning of the motor and the linear motion guide can be easily and reliably performed. Thereby, the trouble of position adjustment of these components can further be reduced.

  A third feature of the platform step device according to the present invention is that each of the plurality of linear motion guides is provided in a groove formed in the mounting plate.

  According to this configuration, when machining a plurality of grooves on one mounting plate, the relative dimension between the plurality of grooves becomes extremely high, so the linear guide is fitted into the groove, or A plurality of linear motion guides can be easily positioned by being brought into contact with the edge of the groove.

  The fourth feature of the platform step device according to the present invention is that the linear motion guide includes a guide portion fixed to the mounting plate and a rail portion fixed to the frame, and the rail portion. The guide groove is formed on the upper surface of the guide portion.

  According to this structure, since the rail part fixed to the flame | frame is supported from the downward direction by a guide part, it can support stably compared with the case where it is supported by a guide part from the side, for example.

  In addition, a fifth feature of the platform step device according to the present invention is that the frame includes a plate member disposed substantially horizontally, and the rail portion is fixed to a lower surface of the plate member. .

  According to this structure, the deformation | transformation in the horizontal surface of a flame | frame can be suppressed with a simple structure. Furthermore, relative positioning between the plurality of rail portions can be easily and reliably performed by fixing the plurality of rail portions to the one plate member.

  Further, a sixth feature of the platform step device according to the present invention is that a rotation support body capable of rolling in the advancing / retreating direction of the step is provided on the upper surface of the plate member while being in contact with the surface facing the inside of the case. It is being done.

  According to this configuration, it is possible to suppress the rattling of the step up and down and to move the step forward and backward stably.

  Further, the seventh feature of the platform step device according to the present invention is provided so as to protrude downward from the frame, and comes into contact with the case when the frame is bent downward by a predetermined amount. A bending prevention portion that restrains the bending of the frame toward the frame, and the bending prevention portion is provided at a position sandwiching the plurality of linear motion guides in a direction along the platform.

  According to this configuration, excessive bending at both ends of the frame can be prevented.

  According to the present invention, relative positioning of a plurality of linear motion guides can be performed easily and reliably. Thereby, the position adjustment time of the linear motion guide on site can be shortened.

The schematic diagram which shows the state which installed the platform step apparatus which concerns on embodiment of this invention in the platform. The perspective view which shows the step apparatus for platforms shown in FIG. The perspective view which shows the state which removed the step and top plate of the platform step apparatus shown in FIG. The expansion perspective view which shows the state which removed the reinforcement board of the step apparatus for platforms shown in FIG. The exploded view which shows the member installed on the attachment board shown in FIG. The perspective view which shows the state which removed the attachment plate and flame | frame of the platform step apparatus shown in FIG. The X1-X1 cross-sectional schematic diagram of the platform step apparatus shown in FIG. X2-X2 cross-sectional schematic diagram of the platform step apparatus shown in FIG.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a platform step device 1 (hereinafter referred to as “step device 1”) is provided at an edge portion of the platform 100 corresponding to a vehicle door position when the vehicle stops in a fixed position stop range. . The step device 1 complements each other with a screen type home door device 200 installed so as to cut off the platform side and the track side (vehicle side) to ensure the safety of passengers. Step 2 that can be advanced and retracted toward is provided. The home door apparatus 200 is provided with a pair of doors 201 that can be opened and closed. Hereinafter, the direction in which the step advances / retreats (arrow A1 direction) is referred to as “step advance / retreat direction”, and the direction along the platform, that is, the direction orthogonal to the step advance / retreat direction (arrow A2 direction) is referred to as “step width direction”. .

  As shown in FIGS. 2 to 4, the step device 1 includes a case 3 (see FIG. 2) embedded in the platform 100, and is provided in the case 3 so as to be able to advance and retract, and a step 2 is provided at the tip in the advance direction. Frame 4 (see FIG. 3), two linear motion guides 5 (see FIG. 4) for guiding the frame 4 in the forward and backward directions, a drive mechanism 6 (see FIG. 4) for moving the frame 4 forward and backward, and two And a mounting plate 7 (see FIG. 4) to which the linear guide 5 and the drive mechanism 6 are fixed.

  As shown in FIGS. 2 and 3, the case 3 serves as a tread surface for passengers and passengers, and a plurality of flat base plates 31, side members 32 that form the other three sides excluding a surface facing the vehicle. A plurality of top plates 33 are provided. The case 3 is fixed to a recess 100a (see FIG. 1) formed in an edge portion of the platform 100 by an anchor or the like.

  As shown in FIG. 6, an opening 31 a is formed in the base plate 31 disposed at a substantially central portion in the step width direction. The opening 31a has a front opening a1 that is formed in a rectangular shape on the vehicle side, and a rear opening a2 that extends from the center in the step width direction at the opposite end of the front opening a1 to the anti-vehicle side. ing.

As shown in FIGS. 4 and 7, the base plate 31 is fixed with a mounting plate 7 made of a highly rigid metal such as SUS with bolts or the like. The mounting plate 7 is fixed in a state in which the mounting plate 7 is fitted into the opening 31a (front opening a1) of the base plate 31.
As shown in FIG. 5, two guide installation grooves 7 a extending in parallel with the step advance / retreat direction are formed on the upper surface of the mounting plate 7. A rail guide 51 (guide portion) is installed in the guide installation groove 7a. Two rail guides 51 are arranged in the guide installation groove 7a at a predetermined interval in the step advance / retreat direction. A guide groove 51a extending in parallel with the step advance / retreat direction is formed on the upper surface of the rail guide 51, and a rail 52 (rail portion) is slidably fitted into the guide groove 51a. Further, as shown in FIG. 7, the upper surface of the rail 52 is fixed to the lower surface of the frame 4. One linear motion guide 5 is configured by two rail guides 51 arranged in one guide installation groove 7 a and one rail 52 fitted in the guide groove 51 a of the rail guide 51.

  As shown in FIG. 5, the mounting plate 7 is formed with a slit 7 b that extends to the end on the side opposite to the vehicle in parallel with the step advance / retreat direction at the center in the step width direction. The slit 7b extends from the substantially central position in the longitudinal direction of the guide installation groove 7a to the end on the side opposite to the vehicle in the step advance / retreat direction. That is, the non-vehicle side of the mounting plate 7 is divided into two forks. The mounting plate 7 is provided with a bottom cover 71 made of a thin metal plate so as to cover the slit 7b from above. The drive mechanism 6 is fixed to the mounting plate 7 so as to be positioned above the bottom cover 71.

As shown in FIGS. 3 and 4, the frame 4 has a frame-like portion in which a plurality of square bar-like members arranged substantially parallel to the base plate 31 are fixed to each other by welding or the like, and passes through the center in the step width direction. The shape is substantially symmetric with respect to a vertical plane (a plane extending in parallel with the step advance / retreat direction).
The frame-like portion is formed of rectangular bar-like members 41a to 41h (hereinafter referred to as vertical members 41a to 41h) extending substantially parallel to the step advance / retreat direction and substantially parallel to the step width direction (substantially orthogonal to the vertical member). (Ii) extending rectangular bar-like members 42a to 42e (hereinafter referred to as horizontal members 42a to 42e).

The horizontal member 42e is provided at the vehicle-side end of the step device 1, and the vertical members 41a to 41h have their tips (vehicle-side end) fixed to the horizontal member 42e.
The horizontal member 42a is connected to the end of the vertical member 41a on the side opposite to the vehicle, the end of the vertical member 41b on the side opposite to the vehicle, and the intermediate part of the vertical member 41c. It is arranged to be located inside. Similarly, the horizontal member 42d is connected to the end of the vertical member 41h on the side opposite to the vehicle, the end of the vertical member 41g on the side opposite to the vehicle, and the middle of the vertical member 41f. These are arranged so as to be located in the case 3.
The horizontal member 42b is disposed at the end of the frame 4 on the side opposite to the vehicle, and is connected to the end of the vertical member 41c on the side opposite to the vehicle and the end of the vertical member 41d on the side opposite to the vehicle. Similarly, the horizontal member 42c is disposed at the end of the frame 4 on the side opposite to the vehicle, and is connected to the end of the vertical member 41f on the side opposite to the vehicle and the end of the vertical member 41e on the side opposite to the vehicle.

The frame 4 has a reinforcing plate 43 (plate member) that is disposed substantially parallel to the base plate 31 and is fixed to the frame-like portion with a bolt or the like.
The reinforcing plate 43 is disposed at the center in the step width direction. Specifically, the reinforcing plate 43 is positioned between the vertical member 41d and the vertical member 41e, and is disposed between the horizontal member 42b and the horizontal member 42c disposed at the end of the frame-like portion on the side opposite to the vehicle, and the frame. It is fixed to a lateral member 42e provided at the end of the body portion on the vehicle side.

  As shown in FIG. 4, the upper surface of the rail 52 is fixed to the lower surface of the reinforcing plate 43 near both ends in the step width direction. Further, as shown in FIG. 3, a plurality of ball casters 44 (rotation support bodies) are provided on the upper surface of the reinforcing plate 43. The ball casters 44 are provided in two rows (5 per row, 10 in total) in parallel with the step advance / retreat direction. As shown in FIGS. 7 and 8, the ball caster 44 is configured to be able to roll and move while contacting the lower surface of the top plate 33 (in FIGS. 7 and 8, the step 2 and the top plate 33 are arranged). Shows a cross-section in a certain state). Thereby, the excessive movement to the upper direction of the flame | frame 4 can be controlled, without preventing the movement of the flame | frame 4 with respect to case 3 moving.

  A step 2 having a plurality of treads extending in the step width direction is fixed to the upper surface of the frame 4 on the vehicle side. In step 2, the vicinity of the outer periphery is supported by the vertical member 41a, the vertical member 41h, the horizontal member 42a, the horizontal member 42d, and the horizontal member 42e, and the lower surfaces on the inner side are the vertical members 41b to 41g and the reinforcing plate 43. Is supported by

As shown in FIGS. 3 and 4, the drive mechanism 6 includes a motor 61 fixed to the upper surface of the mounting plate 7 by bolts, a drive screw 62 rotatably mounted on the mounting plate 7 via a bearing 66, A nut 63 that moves along the drive screw 62, a connecting member 64 that connects the nut 63 and the reinforcing plate 43 of the frame 4, and a fixing member 7 fixed to the mounting plate 7 via a receiving member 67. And a coupling bearing 65 that couples the drive shaft.
Thus, the frame 4 and step 2 can be moved forward and backward relative to the vehicle by rotating the drive shaft of the motor 61 forward and backward.

  Further, as shown in FIGS. 3 and 8, a square member 45 (a deflection preventing portion) having a predetermined thickness is attached to the lower surface of the transverse member 42a and the transverse member 42d. The square members 45 are provided in the vicinity of both ends in the width direction of the frame 4. Thereby, when both ends in the width direction of the frame 4 are bent downward by a predetermined amount, the square member 45 can be prevented from coming into contact with the upper surface of the base plate 31 of the case 3 and the frame 4 can be prevented from being bent excessively. The square member 45 may be made of a highly rigid metal or the like, or may be made of an elastic member such as rubber.

(Effects of Configuration of Embodiment)
(1)
As described above, the step device 1 includes the case 3 embedded in the platform 100, the frame 4 provided in the case 3 so as to freely advance and retract, and the step 2 provided at the tip in the advance direction, and the frame 4 being advanced and retracted. Two linear motion guides 5 for guiding in the direction, a drive mechanism 6 for moving the frame 4 back and forth, and a mounting plate 7 to which the two linear motion guides 5 are fixed are provided.
Thereby, since the two linear motion guides 5 are fixed to one mounting plate, the relative positioning of the two linear motion guides 5 can be easily and reliably performed. Thereby, the trouble of position adjustment of the linear motion guide 5 on site can be reduced.

(2)
The drive mechanism 6 moves the frame 4 forward and backward with the rotation of the drive motor 61, and the drive motor 61 is fixed to the mounting plate 7.
As a result, the motor 61 and the linear motion guide 5 are provided on a single mounting plate, so that the relative positioning of the driving motor 61 and the linear motion guide 5 can be easily and reliably performed. Therefore, the labor for adjusting the position of these members can be further reduced.

  Since the drive screw 62 is fixed to the mounting plate 7 via the bearing 66 and the coupling bearing 65 is fixed to the mounting plate 7 via the receiving member 67, the drive screw 62 and the coupling bearing 65 are fixed. Positioning can also be performed easily.

  Further, by installing the linear motion guide 5 and the drive mechanism 6 on the mounting plate 7 in advance at a factory and installing them on the platform 100 as they are, the installation work time of the step device 1 at the site can be further reduced. Can do.

(3)
Further, when the two linear guides 5 are machined into two guide installation grooves 7a formed in the attachment plate 7, respectively, in the one attachment plate 7 fitted in the two guide installation grooves 7a. The relative dimension between the two guide installation grooves 7a becomes extremely high. The two linear motion guides 5 can be easily positioned by fitting the rail guides 51 of the linear motion guides 5 into the two guide installation grooves 7a formed as described above.

  In the present embodiment, since one linear guide 5 includes two rail guides 51, the two rail guides 51 can be easily fitted by fitting these two rail guides 51 into one guide installation groove 7a. The guide grooves 51a can be arranged on a straight line.

  The rail guide 51 is not limited to being fitted into the guide installation groove 7a, but the rail guide 51 is brought into contact with one groove edge (an edge extending in the step advance / retreat direction) of the guide installation groove 7a. 51 positioning can be performed.

  It is also possible to form a groove in the mounting plate 7 into which the motor 61 or the connecting member of the motor 61 can be fitted, and to position the motor 61 by fitting the motor 61 or the connecting member of the motor 61 into the groove. It is. Further, a groove in which the bearing 66 or the receiving member 67 can be fitted may be formed in the mounting plate 7.

(4)
The linear guide 5 includes a rail guide 51 fixed to the mounting plate 7 and a rail 52 fixed to the frame 4, and a guide groove 51 a for guiding the rail 52 is formed on the upper surface of the rail guide 51. Is formed.
Thereby, the rail 52 fixed to the frame 4 can be supported from below by the rail guide 51. In this case, compared with the case where the rail 52 is supported by the rail guide 51 from the side (configuration described in Patent Document 1), the rail 52 can be supported stably.

(5)
In addition, the frame 4 includes a reinforcing plate 43 arranged substantially horizontally, and the rail 52 is fixed to the lower surface of the reinforcing plate 43.
Thereby, the deformation | transformation in the horizontal surface of the flame | frame 4 can be suppressed with the simple structure using the reinforcement board 43 compared with the case where the flame | frame 4 is comprised only by the vertical members 41a-41h and the horizontal members 42a-42e. .
Furthermore, by fixing to the reinforcing plate 43 of the two rails 52, relative positioning between the two rails 52 can be easily and reliably performed.

(6)
In addition, a ball caster 44 is provided on the upper surface of the reinforcing plate 43 and can roll in the step advance / retreat direction while being in contact with the surface facing the inside of the case 3 (the lower surface of the top plate 33).
Thereby, the up-and-down rattling of Step 2 can be suppressed without preventing the movement of Step 2 in the forward / backward direction.

  In the present embodiment, a plurality of (5) ball casters 44 are arranged side by side in the step advance / retreat direction, and the row of the five ball casters 44 is the center in the step width direction (drive mechanism 6). Two rows are arranged so as to sandwich them. Thereby, the inclination of step 2 can be suppressed and step 2 can be moved forward and backward stably.

(7)
Further, the upper surface of the base plate 31 of the case 3 is provided so as to protrude downward from the frame 4 (the horizontal member 42a and the horizontal member 42d) and when both end portions in the step width direction of the frame 4 are bent downward by a predetermined amount. Is provided with a square member 45 that restrains the bending of the frame 4 downward, and the bending preventing portion is provided at a position between the two linear motion guides 5 in the step width direction.
Thereby, excessive bending at both ends of the frame 4 can be prevented.

  Here, in the present embodiment, the mounting plate 7 is disposed in the center of the case 3 in the step width direction, and the width of the mounting plate 7 (length in the step width direction) is the width of the case 3 (step width). 1/3 or less of the length in the direction). Therefore, the two linear motion guides 5 provided on the mounting plate 7 are arranged near the center in the step width direction. Since the frame 4 is supported by the two linear motion guides 5 from below, the frame 4 is easily bent when a downward load is applied in the vicinity of both ends of the frame 4 in the step width direction. However, by providing the square member 45 in the vicinity of both ends of the frame 4, it is possible to suppress the bending of the frame 4 to the extent that plastic deformation does not occur.

(8)
In addition, the mounting plate 7 is formed so as to have higher rigidity than the base plate 31 (for example, formed thicker than the base plate 31 or made of a material having higher strength than the base plate 31). The distortion of the mounting plate 7 due to the poor flatness is prevented. Thereby, it is possible to prevent the relative position of the linear guide 5 from being distorted due to distortion of the member to which the linear guide 5 is attached.

(9)
Further, since the mounting plate 7 is arranged so that the portion where the guide installation groove 7 a is formed fits into the opening 31 a of the base plate 31, when the portion of the mounting plate 7 is arranged on the upper surface of the base plate 31. In comparison, the thickness of the step device 1 can be reduced.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims.

  The platform step device according to the present invention can be used to prevent a passenger from falling between the platform and a stopped vehicle.

1 Step device for platform 2 Step 3 Case 4 Frame 43 Reinforcement plate (plate member)
44 Ball caster (rotating support)
45 Square material (flexure prevention part)
5 Linear guide 51 Rail guide (guide part)
51a Guide groove 52 Rail (rail part)
6 Drive mechanism 61 Motor 7 Mounting plate 7a Guide installation groove 100 Platform

Claims (7)

A case buried in the platform;
A frame provided in the case so as to freely advance and retract, and a step provided at the tip in the advance direction;
A plurality of linear motion guides for guiding the frame in the advancing and retracting directions;
A drive mechanism for moving the frame forward and backward;
A mounting plate to which the plurality of linear motion guides are fixed;
A platform step device. The drive mechanism moves the frame forward and backward with the rotation of a motor,
The platform step device according to claim 1, wherein the motor is fixed to the mounting plate. 3. The platform step device according to claim 1, wherein each of the plurality of linear motion guides is provided in a groove formed in the mounting plate. 4. The linear motion guide includes a guide portion fixed to the mounting plate, and a rail portion fixed to the frame,
The platform step device according to any one of claims 1 to 3, wherein a guide groove for guiding the rail portion is formed on an upper surface of the guide portion. The frame includes a plate member disposed substantially horizontally,
The platform step device according to claim 4, wherein the rail portion is fixed to a lower surface of the plate member. The platform step device according to claim 5, wherein a rotation support body capable of rolling in an advancing / retreating direction of the step is provided on an upper surface of the plate member while being in contact with a surface facing the inside of the case. Provided with a bend preventing portion that is provided so as to protrude downward from the frame, and abuts against the case when the frame is bent downward by a predetermined amount, and restrains the frame from being bent downward;
The platform step device according to any one of claims 1 to 6, wherein the deflection preventing portion is provided at a position sandwiching the plurality of linear motion guides in a direction along the platform.

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