JP2005001646A - Footrest for rolling stock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a footrest for a rolling stock capable of manufacturing at low cost with simple structure by putting an operating member for height adjustment out of the way. <P>SOLUTION: Height adjustment of the footrest member 5 is performed by using an actuator 11 having a changing length. An locking release pedal 12 is disposed on the upper side of the actuator 11, and the locking and unlocking of the actuator 11 are performed by stepping on/releasing stepping on the unlocking pedal 12. The length of the actuator 11 is adjusted to adjust the height of the footrest member 5 in a state where the unlocking pedal 12 is stepped. When it comes to the desired height, the actuator 11 is locked to the length by releasing the stepping on. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a footrest used by a driver of a railway vehicle.

  In general, it is known that taking a seating posture with a foot placed on a footrest with an appropriate inclination angle provides good sitting comfort and is less tiring even if the seating posture is maintained for a long time.

  Therefore, conventionally, in a railway vehicle, as a driver's footrest (footrest), a gas with a lock mechanism that can adjust the length steplessly as an actuator that moves the plate up and down in the center of the footrest plate An arrangement in which a spring hydraulic damper is arranged is known.

  In such a footrest, since the operation member including the switch portion for releasing the lock of the gas spring hydraulic damper with the lock mechanism is positioned to protrude upward in the central portion, the protruding operation member is located on the driver's foot. It is a hindrance for reasons such as hitting, and is heavy and expensive.

  Therefore, such an operating member (protruding portion upward) is not located in the center, and has good operability and is an easy-to-use footrest, so that the lower plate placed on the mounting surface and the lower plate are superimposed and separated. The upper plate is provided with an upper plate pivoted to one side edge of the lower plate, and an operating member extending from the pivoted portion is provided on the pivoted side of the upper plate. On the back side, there are several locking grooves that are lined up from the non-pivoting side to the pivoting side and each tilted to the pivoting side, and the upper surface of the lower plate falls on the upper surface of the lower plate in a free state and stands up. The upper plate is lifted by the above-mentioned operation so that a stopper that can be engaged with and disengaged in any of the locking grooves in the order from the anti-pivoting side to the pivoting side is pivotally attached, and this stopper can be raised. A knob provided outside the upper plate is known (see, for example, Patent Document 1).

In addition, a lower plate placed on the floor and an upper plate assembled to the lower plate so as to be tiltable by a hinge mechanism are provided, and a filling material such as air is filled between the lower plate and the upper plate. There is also known a configuration in which a bag body that expands and contracts by discharging is arranged and the inclination angle of the upper plate is adjusted by the expansion and contraction of the bag body (for example, see Patent Document 2).
JP-A-9-263168 (paragraph numbers 0018 to 0025 and FIGS. 3 to 6) JP-A-10-95265 (paragraph numbers 0009 to 0012 and FIGS. 1 and 2)

  Since the thing of the said patent document 1 has provided the latching groove | channel and stopper which comprise the mechanism for changing the height (inclination angle) of the said upper board (footrest part) on the lower side of an upper board. The footrest angle must be adjusted manually, resulting in poor operability.

  Moreover, since the thing of the said patent document 2 adjusts the inclination angle of an upper board by expansion | swelling / contraction of the bag body located between a lower board and an upper board, an internal structure becomes complicated again. Since the upper plate on which the foot is placed is supported by the bag body, the support stability is poor compared to the support by the mechanical adjustment mechanism.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a railcar footrest that can be manufactured at low cost with a simple structure without causing an operation member for height adjustment to become an obstacle.

  The present invention is a footrest for a railway vehicle comprising a support member fixed on a vehicle body floor portion and a footrest member provided on the support member so as to be height-adjustable, and a side portion of the footrest member And an actuator for changing the height of the footrest member between the support member and the vehicle body floor, and an operation member for causing the actuator to perform a height changing operation of the footrest member is provided above the actuator. It is provided so that it may be located in. Here, the height of the footrest member refers to the height from the floor portion of the footrest member where the driver's foot is placed.

  In this way, the actuator that changes the height of the footrest member (the position where the foot is supported by the footrest member) can be operated by operating the operation member (for example, by the driver's foot). The height of the footrest member can be adjusted with good operability.

  And since an actuator for changing (adjusting) the height of the footrest member is located on the side of the footrest member, a conventional case in which a height adjustment mechanism is provided on the lower side of the footrest member (Patent Document 1, Patent Document 1). Compared to the technique described in (2), the structure is simple, and the structure can be manufactured at low cost. In addition, since the operating member is provided on the upper side of the actuator, and the actuator and the operating member thereof are located on the side of the footrest member, the operating member for height adjustment does not get in the way. This is advantageous in reducing the overall size.

  The footrest member includes a left and right arm portion whose base end portion is rotatably connected to the support member, and a connecting portion that connects between the distal end portions of the left and right arm portions. And the actuator is connected to one of the left and right arm portions.

  If it does in this way, while a footrest member becomes a simple structure, a driver | operator's leg can be stably supported in a connection part. In addition, since the actuator is connected (directly connected) to one of the left and right arm portions, the footrest member can be rotated by the actuator to achieve stable height adjustment.

  In this case, as described in claim 3, the operation member includes an upper plate portion and an outer edge of the upper plate portion that extends in a direction perpendicular to the upper plate portion, and a distal end portion is longer than the other portion. A vertical plate portion and a lower plate portion extending in parallel with the upper plate portion from the front end portion of the vertical plate portion may be provided, and the front end portion may be formed in a U-shaped cross section.

  In this case, since the distal end portion of the operation member has a U-shaped cross section, the angle of the operation member with respect to the footrest member (arm portion) is limited, and the operation member rotates and moves away from the actuator. It is prevented and stable operation can be realized.

  Further, as described in claim 4, one of the left and right arm portions has a pair of plate members arranged at a predetermined interval, and among the plate members, the plate member is disposed on the inner side (center side). An actuator may be connected, and an operation member and an actuator may be arranged vertically between the pair of plate members.

  In this way, the rigidity of the arm part to which the actuator is connected is increased.

  As described in claim 5, the pair of plate members constituting one of the left and right arm portions is substantially fan-shaped, and a center angle thereof is set larger than a rotatable angle of the footrest member. It is desirable to have a configuration. Here, “the configuration in which the center angle is set to be larger than the rotatable angle of the footrest member” means that the footrest member is merely a normal rotation operation (height adjustment operation). It means that no gap is formed between the support member and the support member.

  In this way, no gap is formed between the arm portion of the footrest member and the support member so that the driver's feet or the like are sandwiched, and the driver's feet or the like are sandwiched between them in a normal state. There is no such thing.

  In addition, as described in claim 6, the actuator can unlock and lock the length adjustment mechanism by pushing and releasing the lock release pin, and the length can be adjusted steplessly in the unlocked state. And a gas spring hydraulic damper with a lock mechanism configured to hold a certain length in a locked state, wherein the operation member is provided so as to be able to push in and release the lock release pin. Is desirable.

  According to a seventh aspect of the present invention, the operation member is a lock release pedal whose base end portion is rotatably connected to the support member, and a tip of a lock release pin of the actuator is connected to the lock release pedal. It is advantageous to simplify the structure if a switch portion is provided so as to face the portion and the lock release pin can be pushed in by depressing the lock release pedal.

  According to an eighth aspect of the present invention, the footrest member may include two pipe members arranged in parallel and a flat plate member provided between them.

  If it does in this way, a foot can be put on a flat plate member, and a foot will be supported stably.

According to a ninth aspect of the present invention, the operation member includes a lock release pedal having a base end portion rotatably connected to the support member, and a lock release member rotatably provided to the footrest member. ,
The unlocking member is configured to rotate when the unlocking pedal is stepped on, and the unlocking member faces the tip of the unlocking pin of the actuator so that the unlocking is released by pressing the unlocking pedal. It can also be set as the structure by which the switch part which can push in a pin is provided.

  In the present invention, as described above, the operation member for the actuator that changes (adjusts) the height of the footrest member is positioned above the actuator, so that the operation member for height adjustment is provided. Can be manufactured inexpensively with a simple structure.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is an explanatory view showing an arrangement in the vicinity of a driver's seat in a railway vehicle, a cross-sectional view taken along line AA in FIG. 3, and FIG. 2 is a view similar to FIG. FIG. 3 is a schematic plan view of the vicinity of the driver's seat.

  As shown in FIGS. 1 and 2, the driver's seat 1 on which the driver D sits is supported on the vehicle body floor 2 so that the height of the seat itself can be adjusted, and the vehicle body floor 2 below the front side thereof. A footrest 3 (footrest device) is disposed on the foot. The footrest 3 includes a support member 4 fixed to the vehicle body floor portion 2 and a footrest member 5 provided on the support member 4 so as to be adjustable in height and on which the foot D1 of the driver D is placed. 7 is a console.

  The footrest member 5 has a driver side end connected to the support member 4 through a rotation support shaft 8 so as to be rotatable, and can be in a low state as shown in FIG. 1 or as shown in FIG. It is configured to be able to be in a high state.

  As shown in FIG. 3, the driver's seat 1 is disposed so as to be offset from the vehicle body center S1 so that the center line of the footrest member 5 coincides with the driver's seat center line S2.

  Specifically, the footrest 3 is configured as shown in FIGS. That is, the support member 4 is attached to the vehicle body floor portion 2, and the support member 4 has an inclined upper surface 4a whose height increases toward the front side. On the other hand, the footrest member 5 includes left and right plate-shaped (flat plate-shaped) arm portions 5A and 5B whose base end portions (driver-side end portions) are rotatably supported, and the left and right arm portions 5A and 5B. It has a pipe-like connecting portion 5C that connects the tip portions, and is formed in a substantially U-shape in plan view.

  Further, the support member 4 is provided with a support bracket 6 on the vehicle body floor 2 below the (driver side), and the base end portions of the left and right arm portions 5A and 5B are respectively provided on the vertical wall portion 6a of the support bracket 6. It is connected rotatably. Further, an engaging portion 5a protrudes from the base end portion of the arm portion 5B, and the footrest member 5 (arm portion 5A) until the engaging portion 5a hits the stopper portion 6b of the support bracket 6 and the rotation operation is restricted. , 5B and the connecting portion 5C) are rotatable.

  Further, a groove-like recess 4b extending in the left-right direction in which the connecting portion 5C can be stored is formed in a portion corresponding to the connecting portion 5C in the support member 4, and the height of the footrest member 5 is the lowest. In the state, it is possible to make the protruding portion of the footrest member 5 almost absent from the upper surface of the support member 4.

  An actuator 11 for changing the height of the footrest member 5 (height adjustment) is provided between the right arm portion 5B of the footrest member 5 and the vehicle body floor portion 2 (or the bottom portion of the support member 4). It has been. As will be described later, this actuator 11 is a gas spring hydraulic damper with a lock mechanism, which unlocks and locks the length by pushing and releasing the lock release pin 26, and the length is stepless in the unlocked state. It is adjustable and is configured to hold a certain length in the locked state.

  A base end portion of an unlocking pedal 12 as an operation member is rotatably attached to an outer position of the arm portion 5B of the footrest member 5.

  The unlocking pedal 12 includes an upper plate portion 12a that is stepped on by the driver, and extends in a direction (downward) perpendicular to the upper plate portion 12a from the outer edge of the upper plate portion 12a. A longitudinal plate portion 12b having a longer length and a lower plate portion 12c extending in parallel with the upper plate portion 12a (to the lower side of the connecting portion 5C of the footrest member 5) from the front end portion of the longitudinal plate portion 12b. However, only the tip portion is formed in a U-shaped cross section. Thereby, since the front-end | tip part of the lock release pedal 12 is made into the U-shaped cross section, the rotation angle with respect to the footrest member 5 (arm part 5B) of the lock release pedal 12 is restrict | limited. Therefore, the lock release pedal 12 is prevented from rotating more than necessary in the direction away from the actuator 11 due to rotation.

  The attachment position to the arm portion 5B is on the driver side (rear side) from the connection position with the actuator 11, and the lock release pedal 12 is located above the actuator 11. Therefore, the lock release pin 26 can be pushed in or released by depressing the lock release pedal 12 or releasing the depression. Specifically, the right arm portion 5B has a mounting hole 5b into which the rotating shaft 13 of the unlocking pedal 12 is inserted, while the rotating shaft 13 of the unlocking pedal 12 has a thickness approximately equal to the thickness of the arm portion 5B. It has an insertion shaft portion 13a which is fixed (for example, welded) by inserting the mounting hole 5b with an equal length. Thereby, it is avoided that protrusions, such as a nut, are located in the opposite side to the side in which the rotating shaft 13 is provided. In addition, the structure which avoids this protrusion is applied also to the axis | shaft 17 which attaches the below-mentioned connection bracket 32 to the right arm part 5B.

  Further, the rotary shaft 13 is attached to the right arm portion 5B so as to protrude sideways, and the base end portion of the lock release pedal 12 is attached to the rotary shaft 13 so as to be rotatable. The rotary shaft 13 includes a shaft main body portion 13b connected to the insertion shaft portion 13a and a pedal mounting shaft portion 13c (tip) having a smaller diameter than the shaft main body portion 13b and fitted with the mounting hole 12d of the unlocking pedal 12. Has a threaded portion having the same diameter. Due to this step, overtightening of the nut 16 can be easily avoided. The step for avoiding overtightening or the like is also applied to shafts 17 and 33 described later.

  Further, the lock release pedal 12 is provided with a block-shaped switch portion 14 facing the tip portion of the lock release pin 26 of the actuator 11. Here, the switch portion 14 does not need to be in contact with the distal end portion of the lock release pin 26, but can contact the lock release pin 26 only when the lock release pedal 12 is depressed and can push the lock release pin 26. If so, the switch portion 14 and the tip of the lock release pin 26 may be separated from each other.

  Further, a coil spring 15 is provided between the unlock pedal 12 and the arm portion 5B to urge the unlock pedal 12 in the unlock direction. The coil spring 15 is wound around the rotary shaft 13. The coil spring 15 prevents the switch portion 14 from inadvertently pressing the tip end portion of the unlocking pin 26 of the actuator 11 so that the length of the actuator 11 does not change.

  The lock release pedal 12 is configured to be positioned slightly above (the driver side) from the footrest member 5 in a state where the switch portion 14 faces (or contacts) the tip of the lock release pin 26. Therefore, the driver can step on the unlocking pedal 12 to the position of the footrest member 5, and by this stepping, the switch portion 14 can push the unlocking pin 26 without difficulty, and the length of the actuator 11 can be adjusted. Can be easy to condition.

  As shown in FIG. 8, this actuator 11 is a gas spring hydraulic damper with a lock mechanism, and includes a length adjustment mechanism capable of adjusting the length steplessly. The actuator 11 is integrated with the movable rod 22 inside the cylinder tube 21. A piston 23 that slides in the axial direction is provided. The piston 23 is provided with a valve 24 for blocking the oil flow. In addition, an orifice 25 is formed in the piston 23, and the speed of the movable rod 22 in the direction of expansion or contraction can be adjusted by the size (inner diameter) of the orifice 25. By operating a lock release pin 26 protruding from the tip of the movable rod 22, the length adjusting mechanism can be locked and released. That is, when the lock release pin 26 located at the tip is pushed, the lock is released and changes in the extending direction. On the other hand, by releasing the press of the lock release pin 26, the length at the time when the press is released is obtained. It is configured to be locked. In addition, 27 is a sealing material and 28 is a stopper.

  Specifically, in the locked state, as shown in FIG. 9A, the orifice 25 that connects the first chamber R <b> 1 and the second chamber R <b> 2 partitioned by the piston 23 is formed by a valve 24 provided in the piston 23. It is interrupted and the movable rod 22 (piston 23) is locked. The first and second chambers R1 and R2 are filled with oil, but the first chamber R1 is partially filled with compressed gas G.

  Then, as shown in FIG. 9 (b), when the lock release pin 26 at the tip of the movable rod 22 is pushed in, the valve 24 is opened, and the first chamber R1 and the second chamber R2 communicate with each other through the orifice 25 and move. The lock of the rod 22 is released. In this unlocked state, the movable rod 22 protrudes due to the gas reaction force and tends to extend its entire length. However, when an external force greater than the gas reaction force is applied to the movable rod 22, the movable rod 22 enters the tube 21. It is pushed in and the total length shrinks. When the lock release pin 26 is released, the valve 24 automatically returns due to the gas reaction force as shown in FIG. 9C, and the communication between the first chamber R1 and the second chamber R2 by the orifice 25 is blocked. Then, the locked state shown in FIG.

  The tube 21 of the actuator 11 is connected to the vehicle body floor 2 via a mounting shaft 33 and a base end portion via a mounting bracket 31. On the other hand, the vicinity of the distal end portion of the movable rod 22 protruding from the distal end side of the tube 21 is connected and fixed to the right arm portion 5B via a connection bracket 32 having an L-shaped cross section as shown in FIG. The connection bracket 22 includes a first portion 32a that is fixedly attached to a predetermined position of the screw portion 22a at the tip of the movable rod 22 with a fixing nut, and extends perpendicularly to the first portion 32a. And a second portion 32b attached using a washer.

  Next, a method for adjusting the height of the footrest member 5 in the footrest 3 will be described.

  First, the operator depresses the unlocking pedal 12, pushes the unlocking pin 26 into the movable rod 22, and allows the first chamber R1 and the second chamber R2 to communicate with each other so that the length of the actuator 11 can be adjusted. To. In this state, unless the footrest member 5 is stepped on and the movable rod 22 is prevented from protruding from the tube 21, the length of the actuator 11 changes in the extending direction.

  In this way, the length of the actuator 11 is adjusted while the unlocking pedal 12 is depressed, and the height of the footrest member 5 is adjusted.

  When the desired height is reached, as shown in FIGS. 10A and 11, if the depression is released, the actuator 11 is locked to that length. As a result, the footrest member 5 is held at a desired height. FIG. 10B shows a cross-sectional shape of the distal end portion of the unlocking pedal 12.

In the first embodiment, the left and right arm portions have a rectangular plate shape when viewed from the side. However, in order to reduce the gap with the unlocking pedal as much as possible, as in the second embodiment described below, It can also have a substantially fan shape.
(Second Embodiment)
As shown in FIGS. 12 to 17, the left arm portion 5A ′ of the footrest 3 ′ is a substantially fan-shaped plate member, but the right arm portion 5B ′ is a 1 It consists of a pair of substantially fan-shaped plate materials 5Ba and 5Bb, and the actuator 11 is connected to one of the plate materials 5Bb. An unlocking pedal 12 'is rotatably provided above the actuator 11 and between the plate members 5Ba and 5Bb. Therefore, the unlocking pedal 12 'and the actuator 11 are arranged above and below between the pair of plate members 5Ba and 5Bb.

  Further, the left and right plate members 5Ba and 5Bb are connected by a connecting metal fitting 43 in the vicinity of the distal end so as to maintain a constant interval, and the base end is connected to the rotation support shaft 8 '. A rubber cushion 42 (buffer material 9) is disposed in the recess 4b 'of the support member 4'.

  Since the arm portions 5A ′ and 5B ′ are substantially fan-shaped in this way, even when the height of the footrest member 5 ′ is high, there is a gap between the footrest member 5 ′ and the support member 4 ′. Will not occur. Therefore, it is avoided that a foot etc. are pinched | interposed between them.

  The unlocking pedal 12 'has a base end portion rotatably supported, and a distal end portion thereof is curved corresponding to the shape of the connecting portion (footrest member 5'). A side plate portion 12d extending downward is provided at a portion following the tip portion. The side plate portion 12d fills a gap formed between the unlocking pedal 12 'and the arm portion 5B'.

In the second embodiment, a lift prevention mechanism for preventing the unlocking pedal from floating more than necessary is not described. However, as shown in FIG. 17, the rear end from the center of rotation of the unlocking pedal 12 ′ is not shown. If the block material 41 is provided between the plate materials 5Ba and 5Bb (arm portion 5B ′) and is lifted more than necessary, the lock release pedal 12 ′ collides with the block material 41 and restricts further lifting. A configuration can be employed.
(Third embodiment)
As shown in FIGS. 18 to 23, in this embodiment, the actuator (cylinder) is arranged at the center position in the left-right direction of the footrest. As described above, the actuator is arranged at the center position in the left-right direction of the footrest when the actuator is provided near either of the left and right arms as in the first and second embodiments. This is to avoid the fact that the amount of sinking was large when the foot was placed on.

  As shown in FIGS. 18 to 21, the footrest 3 ″ is incorporated in the central portion of the support member 4 ″, and upper plates 51 and 52 are provided on both sides thereof.

  The footrest member 5 "is connected to the mounting seat 6" in the form of a parallel link through the pair of arm members 5Aa, 5Ab, 5Ba, 5Bb on the left and right sides of the joint portion 5C "on which the foot is placed. It is movable in the height direction of 5C ″. In addition, in the state where height is the lowest, it becomes a flat shape about 50 mm in height from the floor surface.

  The connecting portion 5C ″ on which the foot is placed is composed of two shaft members 5Ca and 5Cb (covered with a pipe material) arranged in parallel at a predetermined interval, and a footrest fixed between them by screwing. A cylinder receiving member 55 is provided near the center of the shaft member 5Cb (footrest portion 5C ″), the tip end portion of the cylinder 21 is connected, and the base end portion is attached to the mounting seat 6. ”Is rotatably connected.

  Further, a rotation support shaft 8 ″ is rotatably supported on the mounting seat 6 ″ in parallel with the shaft members 5Ca and 5Cb of the footrest portion 5C ″, and a cylinder 21 is provided at a substantially central portion of the rotation support shaft 8 ″. The base end portion of the unlocking pedal 12 ″ that also functions as a cover member is screwed. The unlocking pedal 12 ″ has left and right side plate portions 12A ″ and 12B ″ for protection.

  As shown in FIGS. 22 and 23, the tip of the cylinder 21 is fixed to a connecting bracket 32 ″, and the connecting bracket 32 ″ is attached to a cylinder receiving member 55.

  The connecting bracket 32 ″ is provided with an unlocking member 57 having an unlocking block 14 ″ (switch portion) so as to be rotatable about the rotary shaft 58, and the tip of the unlocking pedal 12 ″ presses the unlocking member 57. Thus, the lock release member 57 rotates around the rotation shaft 58, and presses the tip (lock release pin 26) of the cylinder 21 to release the lock, whereby the length of the cylinder 21 can be adjusted and the lock is released. A return force (restoring force) is generated by the leaf spring force of the release pedal 12 ″ (the restoring spring is not necessary as in the above embodiment).

  Note that, as in the present embodiment, the connecting part on which the foot is placed has two shaft members arranged in parallel with a constant interval, and a footrest plate fixed between them. The configuration in which the cylinder (actuator) is unlocked by the combination of the unlocking pedal and the unlocking member is also applied to the first and second embodiments in which the cylinder is located on the side of the footrest member. Can do.

  The footrest according to the present invention can be configured as follows in addition to the embodiment.

  (i) In addition to the gas spring hydraulic damper with a lock mechanism, the actuator can be locked / unlocked by operating the operating member (unlocking pedal) by the driver, and the height of the footrest member is stepped in the unlocked state. As long as it can be changed (adjusted) continuously or steplessly, it can be used.

  (ii) The base end portion of the actuator 11 is rotatably connected to the vehicle body floor portion below the support member 4. However, the connection portion with the vehicle body floor portion is not limited to the lower portion of the support member, and an actuator is required. It is possible to change appropriately according to the stroke amount.

  (iii) The shape of the unlocking pedal 12 is not particularly limited as long as the unlocking pin 26 that allows the length of the actuator 11 to be adjusted can be pushed in by a driver stepping on the foot.

  (iv) If the weights of the unlocking pedal 12 and the switch portion are not large enough to push the unlocking pin 26 by their own weight in the unlocked state, the coil spring that biases the unlocking pedal 12 is not necessarily required.

  (v) In the above embodiment, the footrest portion (connecting portion 5C) is formed in a pipe shape, but the shape of the footrest portion is not limited thereto, and a wide bar shape is adopted. It is also possible to do. In that case, it is also possible to arrange a whistle foot switch or a deadman switch on the bar.

It is explanatory drawing which shows arrangement | positioning near the driver's seat in the rail vehicle which concerns on the 1st Embodiment of this invention, and is sectional drawing in the AA of FIG. It is a figure similar to FIG. 1 about the state which made the height of the footrest member high. FIG. 3 is a schematic plan view of the vicinity of the driver's seat. It is a schematic side view of the footrest according to the present invention. It is the same top view. It is explanatory drawing of the attaching part of a lock release pedal. It is explanatory drawing of the attaching part of an actuator. It is explanatory drawing of an actuator. (A)-(c) is an operation explanatory view of an actuator, and shows a locked state, a unlocked state, and a relocked state, respectively. (A) is the same figure as FIG. 4 which shows the state where the height of a footrest is high, (b) is sectional drawing of the front-end | tip part of a lock release pedal. It is a perspective view of the footrest which is 1st Embodiment. It is a schematic plan view of the footrest about 2nd Embodiment. It is sectional drawing in the BB line of FIG. It is a top view of the arm part by the side to which an actuator is connected. It is sectional drawing in the CC line | wire of FIG. It is a figure similar to FIG. 15 which shows the state where the height of a footrest is high. It is a lift prevention mechanism figure which prevents that a lock release pedal lifts more than necessary. It is a top view which shows 3rd Embodiment of a footrest. It is sectional drawing in the DD line | wire of FIG. It is sectional drawing in the EE line | wire of FIG. It is a top view of a footrest part. It is sectional drawing in the FF line of FIG. It is sectional drawing in the GG line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's seat 2 Car body floor part 3,3 ', 3 "Footrest stand 4,4', 4" Support member 5,5 ', 5 "Footrest member 5A, 5B Arm part 5Ba, 5Bb Plate material 5C, 5C' , 5C "connecting part 11 actuator 12, 12 ', 12" unlocking pedal (operation member)
14, 14 "switch portion 21 cylinder 22 movable rod 26 lock release pin 57 lock release member

Claims (9)

A railcar footrest comprising a support member fixed on the vehicle body floor and a footrest member provided on the support member so as to be adjustable in height,
An actuator for changing the height of the footrest member is provided between the side or center portion of the footrest member and the support member or the vehicle body floor portion.
A railcar footrest, wherein an operating member that causes the actuator to change the height of the footrest member is positioned above the actuator. The footrest member has left and right arm portions whose base end portions are rotatably connected to the support member, and a connecting portion that connects between the distal end portions of the left and right arm portions,
The railcar footrest according to claim 1, wherein the actuator is connected to one of the left and right arm portions.   The operating member includes an upper plate portion, a vertical plate portion extending in a direction perpendicular to the upper plate portion from an outer edge of the upper plate portion, and a tip portion having a longer length than the other portions, and a tip portion of the vertical plate portion. The railcar footrest according to claim 1 or 2, further comprising a lower plate portion extending in parallel with the upper plate portion, and a tip portion formed in a U-shaped cross section. One of the left and right arm portions has a pair of plate members arranged at a constant interval, and the actuator is connected to an inner plate member of the plate members,
The railcar footrest according to claim 1 or 2, wherein an operation member and an actuator are vertically arranged between the pair of plate members.   The pair of plate members constituting one of the left and right arm portions has a substantially fan shape, and a central angle thereof is set larger than a rotatable angle of the footrest member. Footrest. The actuator unlocks and locks the length adjustment mechanism by pushing and releasing the lock release pin. The length can be adjusted steplessly in the unlocked state, and a fixed length is maintained in the locked state. A gas spring hydraulic damper with a lock mechanism configured to
The railcar footrest according to any one of claims 1 to 5, wherein the operation member is provided so as to be able to push in and release the lock release pin. The operation member is a lock release pedal whose base end portion is rotatably connected to the support member,
The railcar foot according to claim 6, wherein the unlocking pedal is provided with a switch portion that faces a tip portion of the unlocking pin of the actuator and that can push the unlocking pin by depressing the unlocking pedal. Platform.   The railcar footrest according to claim 1, wherein the footrest member includes two pipe members arranged in parallel and a flat plate member provided therebetween. The operation member has a lock release pedal whose base end portion is rotatably connected to the support member, and a lock release member rotatably provided on the footrest member,
The unlocking member is configured to rotate when the unlocking pedal is stepped on, and the unlocking member faces the tip of the unlocking pin of the actuator so that the unlocking is released by pressing the unlocking pedal. The footrest for a railway vehicle according to any one of claims 1 to 5, further comprising a switch portion into which a pin can be pushed.

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