JP2012106591A - Movable platform fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable platform fence that minimizes the installation space thereof and keeps high maintainability.SOLUTION: Two support and guide structures, two driving mechanism sections, and a control device 190 are arranged at different heights inside a door pocket section 100. Specifically, a right door guide section 120 for supporting and guiding a right platform door 20R and a left door guide section 130 for supporting and guiding a left platform door 20L are installed at substantially the same height from the installation surface and are arranged so that the both are looked to overlap on the front surface in the view from a maintenance opening 103 opening to the home side. Adjusting bolts 125 and 135 for adjusting each height are arranged so that they are at different heights in the view from the home side.

Description

  The present invention relates to a waist-high movable home fence provided with a door pocket portion that opens and closes a home door disposed along the edge of the platform.

  Conventionally, an openable platform door (also called an entrance / exit door, movable fence, etc.) arranged along the edge of the platform prevents passengers from falling from the platform to the track side, and prevents contact with the incoming train. What is known as a movable platform fence to prevent, a platform door device, etc. is known.

  In general, a door pocket portion is installed on the platform to accommodate the platform door when getting on and off the train. One of the technical problems is how the home door can be stored in the door pocket in a space-efficient manner so that the opening area of the home door can be used as wide as possible and the traffic area in the home can be as large as possible. Of course, downsizing of the portion corresponding to the door pocket is also important.

  In some cases, two support members for the home door are installed on the platform, and the support member is covered with the home door so that the two support members are accommodated inside the two home doors. Is known (see, for example, Patent Document 1). According to this, it is possible to reduce the size of the installation space by not designing the internal space for accommodating the home door, and yet devising the support member so as not to be fully visible from the outside.

JP 2006-142887 A

  Now, the movable home fence is regularly maintained, and even if there is a request to make the door pocket as small as possible, the arrangement of components and the shape of each component become complicated, making maintenance work difficult. It is not desirable.

  The present invention has been made in view of such circumstances, and an object of the present invention is to realize a movable home fence that maintains high maintainability while minimizing the installation space of the movable home fence.

A first form for solving the above-described problem is that the left and right passenger doors (for example, the right home door 20R and the left home door 20L in FIG. 1) are stacked in the front-rear direction when viewed from the platform side, and are stored in the left-right direction. A waist-high movable home fence with a door pocket that opens and closes
Maintenance openings that open to the home side (for example, maintenance hatch 101 in FIG. 1, maintenance opening 103 in FIG. 6),
Two guide members that are provided at substantially the same height in the door pocket portion and support the entrance door and guide the left and right directions respectively (for example, the right door guide portion 120 and the left door guide portion 130 in FIGS. 6 and 7). And comprising
The front guide member (for example, the right door guide portion 120 in FIGS. 6 and 7) viewed from the home side is the front side of the entrance door (for example, the right home door 20R in FIGS. 7 and 9) in front of the hand. The rear guide member (for example, the left door guide portion 130 in FIGS. 7 and 9) is a front entrance door and a rear entrance door (for example, the left home door 20L in FIGS. 7 and 9). It is a movable home fence provided between, and can visually recognize the support state of the said right-and-left passenger door by opening the said maintenance opening part.

According to the first embodiment, the two guide members that support the left and right passenger doors and guide the left and right doors in the left-right direction are relatively large and require space as elements built in the door pocket. Provide the two at the same height in the door pocket so as to overlap the front and rear when viewed from the platform, and make the support state of the left and right passenger doors visible by opening the maintenance opening. Thus, the thickness of the door pocket portion can be suppressed, and the accommodation space for the guide member in the height direction can be halved.
Therefore, a small door pocket with good maintainability can be realized.

The second form is a hand front adjustment section (for example, the adjustment bolt 125 in FIGS. 6 and 13) that adjusts the height of the guide member in front of the hand, and a depth adjustment that adjusts the height of the guide member in the back. Parts (for example, adjustment bolts 135 in FIGS. 6 and 14) with different heights,
It is a movable home fence of the 1st form in which both the hand front adjustment part and the depth adjustment part can be adjusted from the maintenance opening.

  According to the second embodiment, the same effect as the home fence of the first embodiment can be obtained, and maintenance work can be easily performed from the maintenance opening to both the hand front adjustment unit and the back adjustment unit. Furthermore, maintainability is improved.

  A 3rd form is a movable home fence of a 2nd form which can adjust the said hand front adjustment part and the said back adjustment part in the state in which the said passenger door was supported by the said guide member.

  According to the 3rd form, while being able to obtain the same effect as the movable platform fence of the 2nd form, it can be adjusted while supporting the passenger door, that is, optimal for the use form.

The fourth embodiment includes a widened portion (for example, the sub-holder 136 in FIG. 14) that expands the width in the height direction of the guide member at the back than the width in the height direction of the guide member in front of the hand.
The depth adjustment unit adjusts the height of the guide member in the back by adjusting the height of the widening portion, and each of the hand front adjustment unit and the depth adjustment unit can be viewed from the side of the maintenance opening. It is a movable home fence of a certain 2nd or 3rd form.

  According to the 4th form, while the same effect as the movable home fence of the 2nd or 3rd form is acquired, a back part adjustment part and a hand front adjustment part are arranged in a place with a different height by the widening part, Space for maintenance work for each can be secured.

  In the fifth aspect, the hand front adjustment portion and the depth adjustment portion are provided at the left and right ends of the guide member to be adjusted, respectively, and when the passenger door in front of the hand is fully closed, the entrance door of the passenger door Any one of the second to fourth, in which the shape of the passenger door in front of the hand and / or the position of the rear adjustment unit is determined so that the rear adjustment unit can be viewed from the side of the maintenance opening. It is a movable home rail in some form.

  According to the fifth aspect, the same effects as those of the movable platform fence of any one of the second to fourth aspects can be obtained, and when the passenger door at the front of the hand is fully closed, the rear adjustment unit is at the passenger door at the front of the hand. Prevents the user from being in the shadow of being unable to maintain. Therefore, maintainability can be further improved.

  In the sixth embodiment, the passenger door has an overhanging portion (for example, the slider mounting portion 26 in FIG. 16) that protrudes toward the door bottom, and the overhanging portion includes a supported portion that is supported by the guide member. (Slider 28 in FIG. 16) is provided, and the overhanging portion remains in the door pocket when the passenger door is fully closed, and the passenger door is supported by the movable door according to any one of the first to fifth aspects. It is a fence.

  According to the sixth embodiment, the same effects as those of the movable home fence in any one of the first to fifth embodiments can be obtained, and when the maintenance opening is opened when the passenger door is fully closed, the objects to be maintained immediately are aligned. Therefore, workability is improved.

  A 7th form is a movable home fence in any one of the 1st-6th form in which the said guide member is provided in the upper part in the said door pocket part.

  According to the 7th form, while the effect similar to any one of the 1st-6th form is acquired, a passenger door can be supported advantageously in intensity | strength. Therefore, the components related to the support of the passenger door can be further reduced in size and weight.

  The eighth form is a movable home fence according to the seventh form provided with a shake restraining portion (for example, the guide roller 34 and the door steady stop 108 in FIG. 9) that restrains the lower end of the passenger door from swinging in the front-rear direction. .

  According to the 8th form, while the same effect as a 7th form is acquired, it can suppress that the lower end of a passenger door shakes.

The front view which shows the usage type of 1st Embodiment to which this invention is applied. The conceptual diagram which shows the example of the layout of a support / guide structure of a home door, and a drive structure. It is a figure which shows the example of the internal structure of the simulated home door, Comprising: (1) The example of the type of home door supported by the upper part, (2) The example of the type of home door supported near the height center is shown . The stress distribution figure which shows the simulation result using the type of platform door supported by the upper part. The stress distribution map which shows the simulation result using the type of platform door supported near the height center. It is a front view of the closed state which shows the structural example of a movable home fence, Comprising: The front view of the state in which the maintenance opening part which abbreviate | omitted illustration of the maintenance hatch provided in the home side front surface so that attachment or detachment was possible was opened. AA sectional drawing in FIG. BB sectional drawing in FIG. CC sectional drawing in FIG. It is a front view of the open state which shows the structural example of a movable home fence, Comprising: The front view of the state in which the maintenance opening part which abbreviate | omitted illustration of the maintenance hatch provided in the home side front surface so that attachment or detachment was possible was opened. DD sectional drawing in FIG. EE sectional drawing in FIG. It is a figure which shows the structural example of the support structure of a right platform door, Comprising: (1) Front view, (2) Top view, (3) FF sectional drawing. It is a figure which shows the structural example of the support structure of a left platform door, Comprising: (1) Front view, (2) Top view, (3) GG sectional drawing. It is a figure which shows the structural example of a drive mechanism part, Comprising: (1) The front view of a left door drive mechanism part, (2) The front view of a right door drive mechanism part. It is a figure which shows the example of a structure of a home door, Comprising: (1) The front view of the right home door which cut and described some front side exterior boards, (2) The left home door which represented the front side exterior board Front view.

  FIG. 1 is a front view showing a usage pattern of a first embodiment to which the present invention is applied. The movable platform fence 10 according to the present embodiment is an automatic opening / closing fence that stores two left and right platform doors 20R and 20L in a single door pocket portion 100, as viewed from the platform side.

A plurality of movable platform fences 10 are arranged along the end of the platform 2 near the track.
The movable platform fence 10 is in a “closed state” that closes the left and right home doors 20R and 20L and prevents the passenger from falling from the platform or coming into contact with the incoming train 4 except for the timing of getting on and off the incoming train 4. . Then, before starting getting on and off (sliding in the direction indicated by the white arrow in the figure), the home doors 20R and 20L are housed in the door pocket portion 100, and an opening 8 for getting on and off is formed in front of the entrance 6 "Open state"" After the boarding / alighting is completed, the boarding / opening opening 8 is closed, and the home doors 20R, 20L are housed in the door pocket 100 again (sliding in the opposite direction as indicated by white arrows in the figure) to return to the “closed state”. This is repeated every time you get on and off the train 4.

  Today, with the common use of railroad companies, multiple types of trains will enter the same platform 2 as well. Since the relative position of the entrance / exit door 6 with respect to the platform 2 differs depending on the type of the train 4, it is necessary to allow a difference in the relative position of the entrance / exit door 6 by providing the entrance / exit 8 wide. Such a layout that accommodates the two home doors 20R and 20L in one door pocket 100 can be said to be very effective as a point of view for providing a wide opening 8 for boarding / exiting, and as a device for using the platform 2 more widely.

[Explanation of layout concept]
Next, the concept of the layout of the support / guide structure and drive structure of the movable door fence 10, particularly the home doors 20R and 20L housed in the door pocket 100 will be described.
The movable home fence 10 needs regular maintenance. It is no exaggeration to say that where the maintenance hatch 101 is provided is determined by the layout of the support / guide structure of the platform doors 20R and 20L and the drive structure. In a configuration in which a plurality of maintenance hatches 101 are required, work efficiency is deteriorated because the maintenance work 101 is repeatedly performed around the back of the door pocket 100 or returned to the front each time maintenance work is performed. It is preferable that the maintenance hatch 101 is gathered at one place on the front side of the home and laid out so that the maintenance worker can perform necessary maintenance work from the front of the home side.

  Therefore, in the door pocket part 100 of this embodiment, the maintenance hatch 101 is opened by arranging main structures related to support, guidance, and driving of the home doors 20R and 20L to be maintained in parallel at different heights in the door pocket part. The maintenance work can be performed from the front with respect to any of the support / guide / drive structures.

FIG. 2 is a conceptual diagram showing an example of the layout of the support / guide structure and drive structure of the platform doors 20R, 20L, and the maintenance hatch 101 is omitted.
From the viewpoint of reducing the number of maintenance objects as much as possible while avoiding an increase in the size of the door pocket portion 100, the support / guide structures 12R and 12L are respectively provided as the home doors 20R and 20L. Then, the structure which is the object of the maintenance work is a control device 16 for controlling the support / guide structures 12R and 12L of the left and right home doors 20R and 20L, the drive structures 14R and 14L, and the movable home fence 10 in an integrated manner. There are a total of 5 elements.

When arranging these elements in parallel within the door pocket portion 100 at different heights, first, as shown in FIG. 2 (1), a layout in which each of these elements is divided into five stages can be considered.
However, this embodiment does not employ this layout for the following reason.
The first reason is that in this layout, the support structure of the right home door 20R and the left home door 20L must be separated on the left and right. Therefore, the design requirements are different between the support / guide structures 12R and 12L, and the design requirements are different between the platform doors 20R and 20L. This is because it is necessary to prepare dedicated parts on the left and right sides.

  The second reason is a maintenance problem. Considering the safety point of view so that passengers waiting for the train do not fall onto the platform 2 even if they hit the platform doors 20R, 20L, the wind pressure when entering the train, etc. It is necessary to support the home doors 20R and 20L so as to withstand the load in the longitudinal direction. Therefore, the support / guide structures 12R and 12L are relatively large.

  In the layout of FIG. 2 (1), since the support / guide structures 12R and 12L are arranged at different heights in a single stage, the above-mentioned five elements in the height direction are cramped, and the tool space during maintenance is reduced. It is difficult to secure. Of course, if the door pocket 100 itself is made larger in size, it can be accommodated in steps with sufficient distance between the elements, but the viewpoint of reducing the feeling of pressure on passengers on the platform and the viewpoint of aesthetics Therefore, it is a coping method that should be avoided if possible.

  Therefore, as shown in FIGS. 2 (2) and 2 (3), by arranging the support guide structures 12R and 12L at substantially the same height, the internal space of the door pocket portion 100 can be effectively used, and the tool space and the like can be used. The drive structures 14R and 14L and the control device 16 can be arranged while ensuring.

  What should be considered here is at which height of the door pocket 100 the support / guide structures 12R and 12L are provided. In the present embodiment, from the viewpoint of strength, a case where a load in the front-rear direction as viewed from the platform is applied to the closed home doors 20R and 20L is simulated, and the height at which the load can be effectively received is determined. Selected.

FIG. 3 is a diagram showing an example of the simulated internal structure of the home door, and is a view seen through the front decorative plate (exterior plate).
The home doors 20A and 20B have reinforcing beams 23 that extend to the left and right of the door frame 22 that form the outer shape of the panel, and reinforcing columns 24 that extend vertically. And the slider attachment part 26 which attaches the slider 25 (supported part) engaged with support / guide structure 12R, 12L of the door pocket part 100 so that it may be connected with these is outside the door frame 22 (door bottom side). It extends so as to overhang. The drive structures 14R and 14L of the door pocket portion 100 are engaged with a clamp 29 provided on the clamp mounting portion 30.

  In the home door 20A, the reinforcing beam 23 and the slider mounting portion 26 are provided at the top of the door, and in another home door 20B, the reinforcing beam 23 and the slider mounting portion 26 are provided near the center in the height direction of the door. . In the simulation, a load to be pushed from the home side to the track side (the back direction in the figure in FIG. 3) is set at the upper part of each door.

FIG. 4 is a stress distribution diagram showing a simulation result using the platform door 20A. FIG. 5 is a stress distribution diagram showing a simulation result using the platform door 20B.
As is apparent from these drawings, in the home door 20A in which the reinforcing beam 23 and the slider mounting portion 26 are provided at the upper portion of the door, the joint portion of the reinforcing beam 23 and the door frame 22, the slider mounting portion 26 and the door frame 22 are provided. The stress is only slightly concentrated on the joint portion (see the white arrow in FIG. 4). On the other hand, in the home door 20B in which the reinforcing beam 23 and the slider mounting portion 26 are provided near the center of the door, the connecting portion between the reinforcing beam 23 and the door frame 22 and the connecting portion between the slider mounting portion 26 and the door frame 22 are of course. High stresses are generated at other locations (see white arrows in FIG. 5).
When the reinforcing beam 23 and the slider mounting portion 26 are arranged further below the center of the door, the number of places where higher stress is generated than the result of FIG. 4 increases as in FIG. 5, or the stress itself becomes higher. It will be easily imagined.

  Therefore, from these simulation results, the support / guide structures 12R and 12L are provided as high as possible in the door pocket portion 100. As a result, it is more advantageous in terms of strength when the reinforcing beam 23 and the slider mounting portion 26 are provided on the upper portion of the door, and the home door can be lightened. As a result, since the strength requirements of the support / guide structures 12R and 12L can be kept low, the weight and manufacturing cost of the entire movable home fence 10 can be reduced, and the size can be reduced.

[Detailed description of configuration]
Next, the detailed configuration of the movable home fence 10 in the present embodiment will be described.
FIG. 6 is a front view showing a configuration example of the movable home fence 10 in a closed state, in which a maintenance hatch 101 provided in a detachable or openable manner on the front side of the home is omitted, and the maintenance opening 103 is opened. FIG. 7, FIG. 8, and FIG. 9 are an AA sectional view, a BB sectional view, and a CC sectional view in FIG. 6, respectively.

  FIG. 10 is a perspective front view of an open state showing an example of the configuration of the movable home fence 10. The maintenance hatch 101 provided on the front side of the home so as to be detachable or openable is omitted, and the maintenance opening 103 is provided. It is a front view of the open state. 11 and 12 are a DD sectional view and an EE sectional view in FIG. 10, respectively.

  The movable platform fence 10 of the present embodiment includes a door pocket portion 100, a right home door 20R, and a left home door 20L.

  The door pocket portion 100 covers a frame 104 in which four struts are connected to each other on the pedestal 102 fixed to the upper surface of the platform 2 with an exterior plate 106, and includes a right door guide portion 120 and a left door inside. The door guide part 130, the right door drive mechanism part 180, the left door drive mechanism part 160, and the control apparatus 190 for electronically / electrically controlling the opening / closing control of a door are provided. As the control device 190, a known similar device can be used as appropriate, and a detailed description thereof is omitted here.

  Openings through which the home doors 20R and 20L can be inserted during opening and closing movements are respectively provided on the left and right side surfaces of the exterior plate 106, and a detachable or openable maintenance hatch 101 is provided on the front (see FIGS. 7 and 8). Is provided.

  A right door guide portion 120 that is a support / guide structure for the right home door 20 </ b> R is fixed to the frame 104 via a right door guide holder 124 on the upper front side of the internal space of the door pocket portion 100. Similarly, a left door guide portion 130 that is a support / guide structure for the left home door 20 </ b> L is fixed to the frame 104 via a left door guide holder 134 on the upper back side of the internal space.

The right door guide part 120 and the left door guide part 130 are installed at the same height, and the right door guide part 120 appears to overlap the left door guide part 130 when viewed from the front side on the home side. When viewed from the home side, the right home door 20R is arranged behind the right door guide portion 120, and then the left door guide portion 130 is arranged, and the left home door 20L is arranged most recently among the four door doors.
Note that the “same height” here includes a state where there is no strict difference in height, but allows a slight difference in height. The allowable amount is a range in which the load applied to the structure for guiding and supporting the left and right home doors 20R and 20L is not significantly different in the above-described simulation, and is within the range of the height position adjustment amount described later. However, more accurately expressed, it is installed at “approximately the same height”.

These support / guide structures will be specifically described.
FIG. 13 is a diagram illustrating a configuration example of the right door guide portion 120 and the right door guide holder 124, where (1) a front view, (2) a top view, and (3) in the FF cross section of (1). It corresponds to an exploded view.

The right door guide part 120 fulfills a guide function for opening and closing the right home door 20R.
Specifically, the right door guide part 120 has a linear rail 120b fixed to the back of a horizontally long guide plate 120a. The linear rail 120b is engaged with a slider 28 (see FIG. 16) attached to the right home door 20R to constitute a linear motion guide mechanism.

  The left and right ends of the guide plate 120a are provided with elongated holes 120d (see FIG. 13 (3)) that are elongated in the vertical direction, and are vertically attached to the front of the base portion 124a of the right door guide holder 124. It is fixed to the surface 124d by fixing bolts 121. Of course, the bolt head of the fixing bolt 121 faces the front side of the door pocket portion 100.

  The right door guide holder 124 connects and supports the right door guide part 120 to the frame 104 and functions as an adjustment part (a hand front adjustment part in the layout of the present embodiment) that adjusts the height of the guide part. .

Specifically, the base 124a of the right door guide holder 124 is fixed to the frame 104 by bolting or welding. An adjustment bolt support piece 124b extends from the lower end of the base portion 124a. The adjustment bolt 125 is screwed onto the adjustment bolt support piece 124b so that the tip of the adjustment bolt 125 contacts the lower end of the right door guide portion 120.
That is, after the fixing bolt 121 is slightly loosened, the right door guide part 120 is adjusted to a desired height by turning the adjusting bolt 125, and the fixing bolt 121 is tightened and fixed at the adjusted height. it can. The length of the long hole 120d in the vertical direction is an adjustment range of the height position of the right door guide portion 120.

  FIG. 14 is a diagram showing a configuration example of the left door guide portion 130 and the left door guide holder 134, (1) front view, (2) top view, and (3) in the GG cross section of (1). It corresponds to an exploded view.

The left door guide part 130 performs a guide function for opening and closing the left home door 20L.
Specifically, the left door guide portion 130 has a linear rail 130b fixed to the back of a horizontally long guide plate 130a. The linear rail 130b is engaged with a slider attached to the left home door 20L to constitute a linear guide mechanism.

The guide plate 130 a is fixed to the left door guide holder 134 via the sub holder 136.
Specifically, bolt holes 130c (see FIG. 14 (3)) are provided at the left and right ends of the guide plate 130a.
The sub-holder 136 is a vertically long plate material provided with a guide plate fitting groove 136a for fitting the guide plate 130a and longer than the vertical width of the guide plate 130a, and is provided with long elongated holes 136b vertically above and below.

  The guide plate 130a is fixed to the guide plate fitting groove 136a of the sub-holder 136 by a fixing bolt 133. The sub-holder 136 itself is fixed by a fixing bolt 131 to a vertical attachment surface 134d formed on the front surface of the base portion 134a of the left door guide holder 134. Of course, the bolt head of the fixing bolt 131 faces the front side of the door pocket portion 100.

  The left door guide holder 134 includes a sub-holder 136, and connects and supports the left door guide portion 130 to the frame 104, and as an adjustment portion that adjusts the height of the guide portion (the depth adjustment portion in the layout of the present embodiment). Responsible for the function. In other words, the sub-holder 136 functions as a widened portion that expands the width in the height direction of the back guide member (in this case, the left door guide portion 130) larger than the width in the height direction of the guide member in front of the hand.

Specifically, the base portion 134a of the left door guide holder 134 is fixed to the frame 104 by bolting or welding at a position just behind the right door guide holder 124. An adjustment bolt support piece 134b extends from the lower end of the base portion 134a. The adjustment bolt support piece 134b is provided below the adjustment bolt support piece 124b of the right door guide holder 124 and at different positions in the left-right direction when viewed from the front side on the home side. The adjustment bolt 135 is screwed onto the adjustment bolt support piece 134b so that the tip of the adjustment bolt 135 is in contact with the lower end of the sub-holder 136.
That is, after the fixing bolt 131 is slightly loosened, the left door guide part 130 is adjusted to a desired height by turning the adjusting bolt 135, and the fixing bolt 131 is tightened and fixed at the adjusted height. it can. The length in the vertical direction of the long hole 136d is an adjustment range of the height position of the left door guide portion 130.

  Here, when viewed from the front of the home side, the relative position of the adjustment bolt 125 that adjusts the height of the right door guide portion 120 and the adjustment bolt 135 that adjusts the height of the left door guide portion 130 is seen in FIG. As shown in FIG. 3, these two adjusting bolts are separated from each other and are arranged at different heights. Therefore, during maintenance, the adjustment bolt on the side hidden behind the shadow can be easily adjusted with respect to each of the adjustment bolts without the trouble of turning the tool in the back, for example by twisting the wrist. It has become.

  FIG. 15 is a diagram illustrating a configuration example of a drive mechanism in the present embodiment, and (1) a left door drive mechanism unit 160 for the left home door 20L, and (2) a right door drive mechanism of the right home door 20R. Each part 180 is shown.

  In this embodiment, a timing belt is used as a drive mechanism for opening and closing the home doors 20R and 20L. In the door pocket 100, a left door drive mechanism 160 is disposed on the front side of the left home door 20L below the right guide door 120 and the left door guide 130, and further below the right door drive mechanism. Part 180 is arranged. The right door drive mechanism 180 is disposed on the front side of the left door drive mechanism 160 and the right home door 20R (see FIG. 9).

  Specifically, the left door drive mechanism 160 includes a door opening / closing motor 163 (integrated with the drive pulley 162) fixed to the right frame 104 of the door pocket 100 by a motor stay 161, and a pulley stay 164 to the left frame 104. And a toothed belt 167 stretched between these pulleys.

The door opening / closing motor 163 is rotationally driven and controlled by a control device 190 (see FIG. 6).
The pulley stay 164 includes a slide stay 164b that pivotally supports the driven pulley 165 so as to be slidable in the left-right direction with respect to the base stay 164a. An adjustment bolt 166 is screwed onto the base stay 164a, and the left and right positions of the slide stay 164b with respect to the base stay 164a can be finely adjusted by abutting the tip of the adjustment bolt 166 with the end surface of the slide stay 164b. That is, the tension of the toothed belt 167 can be adjusted.

  Further, the motor stay 161 and the pulley stay 164 have a stopper 33 (see FIG. 16) of the left home door 20L and stopper receiving portions 161c and 164c that are in contact with each other in the open / closed state. In these cases, the storage position or the door protruding position of the left home door 20L is regulated.

  The left door drive mechanism 160 has basically the same configuration as the right door drive mechanism 180. However, the arrangement relationship of the respective elements is reversed left and right with respect to the right door drive mechanism unit 180. Further, the motor stay 161 and the pulley stay 164 have a stopper 33 (see FIG. 16) of the right home door 20R and stopper receiving portions 161c and 164c that are in contact with each other in the closed state / open state, respectively. In these cases, the storage position or the door protruding position of the right home door 20R is regulated.

Next, the structure of the platform doors 20R and 20L will be described.
FIG. 16 is a diagram illustrating a configuration example of the platform doors 20R and 20L in the present embodiment, and (1) a front view of the right platform door 20R in which a part of the exterior plate on the front side is cut, and (2). This corresponds to a front view of the left home door 20L in which a front side exterior plate is shown.

  The right home door 20R forms a skeleton by passing reinforcing beams 23 left and right on the inner upper part of a rectangular door frame 22 in front view and attaching reinforcing columns 24 vertically. And the exterior board 25 is each attached to the front side and back side of the door frame 22, and the main external shape of a panel-shaped door is formed.

  On the door bottom side (left side of FIG. 16 (1)) accommodated in the door pocket portion 100 of the door frame 22, the slider mounting portion 26 is connected to the left end of the door frame 22, the reinforcing beam 23, and the reinforcing column 24. Protrudes laterally from the door frame 22 and protrudes. On the front side of the slider mounting portion 26, a slider 28 that is engaged with the linear rail (guide rail) 120b of the right door guide portion 120 built in the door pocket portion 100 and serves as a supported portion is mounted.

  In addition, a clamp mounting portion 30 protrudes from the side of the door frame 22 accommodated in the door pocket portion 100, below the slider mounting portion 26. The clamp mounting portion 30 is in contact with the clamp 32 that sandwiches the toothed belt 167 (see FIG. 15) of the right door drive mechanism portion 180 and the stopper receiving portions 161c and 164c, thereby restricting the storage position and the protruding position of the door. A stopper 33 is attached.

  A guide roller 34 is fixed to the lower surface of the door frame 22 on the side accommodated in the door pocket portion 100. When the door is in the closed state, the guide roller 34 is fitted and engaged with the door steady rest 108 attached to the frame 104 of the door pocket portion 100 to suppress the swing of the door.

  The right home door 20R of the present embodiment has a substantially U-shaped notch in front view on the side of the home door on the side of the storage side by projecting the slider mounting portion 26 and the clamp mounting portion 30. A portion 36 is formed (see FIG. 16). As shown in FIG. 6, when the cutout portion 36 is closed and maintenance work is performed, the adjustment bolt 135 of the left door guide holder 134 and the drive pulley 162 of the left door drive mechanism portion 160 are connected to the right home. A space for maintenance is secured so as not to be hidden behind the door 20R.

  The left home door 20L is basically the same as the right home door 20R except that the notch 36 is omitted, and the left and right arrangements are opposite.

  According to this embodiment, among the elements built in the door pocket portion 100, the guide portion of the relatively large platform door is set to have substantially the same height from the ground surface, and is arranged so that it can be seen from the maintenance opening that opens to the platform side. To do. Thereby, it is possible to effectively utilize the internal space of the door pocket portion 100 and arrange the guide portion, the drive mechanism portion, and the control device in steps while securing a work space for maintenance. Therefore, the small door pocket portion 100 having good maintainability can be realized.

  In addition, adjustment bolts 125 and 135 for adjusting the height of the right door guide part 120 and the left door guide part 130 are arranged at different heights so that both can be seen from the front of the maintenance opening 103 at a time. Since the work can be performed, maintenance is further improved.

  Further, when performing maintenance work, the right side door 20R in the closed state is behind the right side door 20R so that the adjustment bolt 135 of the left door guide 130, the drive pulley 162 of the left door drive mechanism 160, etc. are not hidden. The home door 20 </ b> R is provided with a notch 36, and the adjustment bolt 135 and the driving pulley 162 can be seen from the notch 36. Therefore, the maintainability is further improved.

[Modification]
As described above, the embodiments to which the present invention is applied have been described. However, the application forms of the present invention are not limited to these, and additions, omissions, and modifications of components may be appropriately made without departing from the gist of the invention. it can.

  For example, the notch 36 may be a window instead of a notch. Moreover, it is good also as a structure which abbreviate | omits the notch part 36 by devising the arrangement position of the drive pulley 162 of the left door drive mechanism part 160. FIG.

DESCRIPTION OF SYMBOLS 10 Movable home fence 20R Right home door 20L Left home door 28 Slider 32 Clamp 34 Guide roller 36 Notch part 100 Door cover part 108 Door steadying 120 Right door guide part 125 Adjustment bolt 130 Left door guide part 135 Adjustment bolt 136 Sub holder 160 Left door driving mechanism 180 Right door driving mechanism 190 Control device

Claims (8)

A waist-high movable home fence with a door pocket that houses the left and right entrance doors in front and back as viewed from the platform, and opens and closes in the left-right direction,
A maintenance opening that opens to the home side;
Two guide members that are provided at substantially the same height in the door pocket part and support the entrance door and respectively guide in the left-right direction;
The guide member in front of the hand as viewed from the home side is provided on the front side of the passenger door in front of the hand, and the guide member in the back is provided between the passenger door in front of the hand and the passenger door in the back, A movable home fence characterized in that the maintenance state of the left and right passenger doors can be visually confirmed by opening a maintenance opening. A hand front adjustment unit that adjusts the height of the guide member in front of the hand and a back adjustment unit that adjusts the height of the back guide member are provided at different heights,
The movable home fence according to claim 1, wherein both the hand front adjustment unit and the depth adjustment unit can be adjusted from the maintenance opening. In the state where the passenger door is supported by the guide member, the hand front adjustment unit and the back adjustment unit can be adjusted.
The movable home fence according to claim 2. A widened portion that widens the width of the back guide member in the height direction than the width in the height direction of the front guide member,
The depth adjustment unit adjusts the height of the guide member in the back by adjusting the height of the widening portion, and each of the hand front adjustment unit and the depth adjustment unit can be viewed from the side of the maintenance opening. is there,
The movable home fence according to claim 2 or 3. The hand front adjustment portion and the depth adjustment portion are provided at the left and right ends of the guide member to be adjusted,
The shape of the passenger door in front of the hand and / or the rear adjuster so that the rear adjuster near the entrance of the passenger door can be viewed from the side of the maintenance opening when the passenger door in front of the hand is fully closed. The arrangement position of is determined,
The movable home fence as described in any one of Claims 2-4. The passenger door has an overhanging portion that protrudes to the door end side,
The overhang portion is provided with a supported portion supported by the guide member, and the overhang portion remains in the door pocket portion when the entrance door is fully closed, and the entrance door is supported.
The movable home fence as described in any one of Claims 1-5. The movable home fence according to any one of claims 1 to 6, wherein the guide member is provided at an upper portion in the door pocket. The movable home fence according to claim 7, further comprising a swing suppression unit that suppresses the lower end of the passenger door from swinging in the front-rear direction.