JP7021987B2 - Movable home fence - Google Patents

Description

The present invention relates to a movable home fence.

Movable platform fences are required to have wide openings to accommodate various train formations with different vehicle door positions and widths, as well as deviations in train stop positions. Movable home fences called "double slide type" and "two-stage sliding door type" that accommodate a plurality of door panels are known as one of the solutions (see, for example, Patent Documents 1 to 4).

Japanese Unexamined Patent Publication No. 2000-177580 Japanese Unexamined Patent Publication No. 2000-108890 Japanese Unexamined Patent Publication No. 2000-16281 Japanese Unexamined Patent Publication No. 2010-42812

The present invention has also been devised with the primary object of allowing the opening to be wider.

In addition, the second object of the present invention is to realize a configuration advantageous in reducing manufacturing cost, size, and weight. That is, in the configuration disclosed in Patent Document 4, since the motor or the like moves together with the first door (first door panel), the electric wire or the like connected to the motor also moves. Therefore, electric wires and the like are required to have sufficient durability to withstand repeated bending and wear, and it is also necessary to attach various protective members to prevent disconnection, which has been a factor of high cost. In addition, since the structure is such that the drive unit is attached to the first door, the first door becomes heavier by that amount, and it is necessary to equip a large drive unit that can handle a high load. Then, the door pocket becomes heavy and large in order to secure a large internal space for moving the large drive unit while supporting the large weight of the first door. Large and heavy movable platform fences were apt to be shunned because they occupied the platform and could require reinforcement work for installation. Further, for example, a movable platform fence having a high height may have a poor visibility on the platform for train crews and staff at the time of safety confirmation accompanying opening and closing of doors.

The first invention for solving the above problems includes a front door panel, a rear door panel that movably supports the front door panel in the opening / closing direction, a door pocket portion that movably supports the rear door panel in the opening / closing direction, and the above. A drive unit for moving the rear door panel with respect to the door pocket portion, a first link having one end connected to the first position of the front door panel, and one end connected to the other end of the first link. A second link whose end is connected to the second position of the door pocket, and a third where one end is connected to the middle of the first link and the other end is connected to the third position of the rear door panel. The rear door panel is moved by the drive unit to include a link and a fourth link having one end connected to the third position and the other end connected to the middle of the second link. By moving the three positions, the first to fourth links form a stretchable pantograph mechanism with the second position as a base point, the pantograph mechanism sandwiches the reduced state, and the first position is the second position. It is a movable home fence that opens and closes by transitioning between two states, an extended state when the door is closed, which is on the front side of the position, and an extended state when the door is opened, where the first position is on the rear side of the second position. ..

According to the first invention, if the rear door panel is moved by the drive unit, the front door panel can be moved in the same direction as the rear door panel by interlocking the first to fourth links. Therefore, when a movable home fence having the same width of the opening can be realized, the length of the door pocket portion in the width direction (opening / closing direction) can be made smaller than the conventional one. Therefore, it is possible to provide a movable home fence that is advantageous in terms of reduction in manufacturing cost, size, and weight.

Further, in the second invention, the first position is on the lower rear side of the front door panel, the second position is higher than the first position, and the third position is in the height direction. The movable home fence of the first invention, which is at a height intermediate between the first position and the second position.

Further, in the third invention, the movable platform of the first or second invention has the third position in the frame portion on the rear side of the rear door panel and is located in the door pocket portion in the extended state when the door is closed. It is a fence.
According to the second or third invention, the first link that pushes / pulls the front door panel is connected to the second link that swings in the door pocket portion from the second position as a base point, and is connected to the second link that swings in the door pocket portion during the opening / closing operation. Functions as a rod that flexes appropriately. Therefore, it is possible to obtain the same effect as that of the first invention, and it is possible to keep the height of the door pocket portion low even if the width of the door panel is increased.

A front view of the movable platform fence as seen from the platform side, showing the fully closed state. FIG. 1A is a cross-sectional view taken along the line AA of FIG. BB sectional view of FIG. It is a figure for demonstrating the operation of a movable home fence, and is a partial sectional view showing a fully closed state. It is a figure for demonstrating the operation of the movable home fence, and is a partial sectional view which shows the example of the movable home fence in the intermediate state from the fully closed state to the fully open state. It is a figure for demonstrating the operation of a movable home fence, and is a partial sectional view which shows the example of the movable home fence in a fully open state. A front view of a partial cross-sectional display for explaining the configuration of a modified example of a movable home fence.

Hereinafter, examples of embodiments of the present invention will be described, but it goes without saying that the embodiments to which the present invention can be applied are not limited to the following embodiments.

FIG. 1 is a front view of the movable platform fence as viewed from the platform side, and is a view showing a fully closed state. However, the door pocket portion is shown as a vertically cross-sectional view. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a cross-sectional view taken along the line BB of FIG.

The movable home fence 10 of the present embodiment is a "double sliding door type" home fence in which two door panels, a front door panel 20 and a rear door panel 30, can be accommodated in the door pocket 40.
In the movable home fence 10 of the present embodiment, the front door panel 20 and the rear door panel 30 are taken in and out from the left side when facing the front of the door pocket portion 40, and the door pocket portion 40 is installed on the right side of the vehicle boarding / alighting position when viewed from the platform 3. Although it is exemplified as a "right-mounted type", the "left-mounted type" in which the structure is reversed left and right, that is, the front door panel 20 and the rear door panel 30 are taken in and out from the right side of the door pocket 40 and viewed from the platform 3. The door pocket portion 40 may be installed on the left side of the vehicle boarding / alighting position.

The front door panel 20 has a transparent panel 22 inside the frame portion 21, so that the platform side and the track side can be seen through.

The door pocket side of the front door panel 20 is inserted inside the frame portion 31 of the rear door panel 30. A slider 23 is provided on the upper portion of the frame portion 21, and the slider 23 is engaged with the guide rail 33 provided on the upper portion of the frame portion 31 of the rear door panel 30 to form the first linear motion mechanism portion 51. There is. Similarly, a guide rail 24 is provided at the lower portion of the frame portion 21, which engages with the slider 34 provided at the lower portion of the frame portion 31 of the rear door panel 30 to form the second linear motion mechanism portion 52. There is. That is, the front door panel 20 is movably supported with respect to the rear door panel 30 in the opening / closing direction.

The rear door panel 30 has a transparent panel 32 inside the frame portion 31, so that the platform side and the track side can be seen through.

The door pocket side of the rear door panel 30 is inserted inside the door pocket portion 40. A slider 35 is provided on the upper portion of the frame portion 31, and the slider 35 is engaged with the guide rail 45 provided on the upper portion of the door pocket portion 40 to form the third linear motion mechanism portion 53. Similarly, the guide rail 36 is provided at the lower portion of the frame portion 31, and the guide rail 36 is engaged with the slider 46 provided at the lower portion of the door pocket portion 40 to form the fourth linear motion mechanism portion 54. That is, the rear door panel 30 is movably supported in the opening / closing direction with respect to the door pocket portion 40.

The door pocket 40 contains a drive unit 12 that moves the rear door panel 30 in the door opening / closing direction, and a control device 14 that controls the operation of the drive unit 12. Of course, equipment other than these can be built in as appropriate.

The drive unit 12 of the present embodiment is a belt drive type, and is a belt drive type.
1) The drive pulley 12d fixed to the door pocket 40 and
2) The driven pulley 12j fixed to the rear door panel,
3) An annular toothed belt 12v spanned over both pulleys,
4) A belt clamp 12c fixed to the rear door panel 30 with respect to the toothed belt 12v, and
5) An electric motor 12m driven and controlled by the control device 14 and
6) It has a deceleration mechanism unit 12g that decelerates the rotation of the output shaft of the electric motor 12m and transmits it to the drive pulley 12d.
The drive unit 12 may adopt another type of linear motion mechanism. For example, a type using a ball screw, a type using a rack and pinion, and the like can be selected.

The control device 14 includes electronic / electrical components for driving and controlling the electric motor of the drive unit 12 in accordance with a drive command from the outside.

The front door panel 20, the rear door panel 30, and the door pocket portion 40 are connected by a pantograph mechanism.

The pantograph mechanism includes a first link 71, a second link 72, a third link 73, and a fourth link 74.

The first link 71 is a rod material whose both ends are pivotally supported by a swing shaft and can swing in the vertical direction, and one end portion (the left end portion in the example of FIG. 1) is a frame portion 21 of the front door panel 20. It is connected to the first position P1 set at the lower part, and the other end is connected to the second link 72.

The second link 72 is a rod material whose both ends are pivotally supported by a swing shaft and can swing in the vertical direction, and one end (the lower end in the example of FIG. 1) is the other end of the first link 71. It is connected to (the right end portion in the example of FIG. 1), and the other end portion is connected to the second position P2 set at the lower end of the second position bracket 47 suspended from the lower surface of the upper frame of the door pocket portion 40.

The third link 73 is a rod material whose both ends are pivotally supported by a swing shaft and can swing in the vertical direction, and one end portion (the lower end portion in the example of FIG. 1) is an intermediate portion of the first link 71. The other end (upper end in the example of FIG. 1) is connected to the third position P3 set in the third position bracket 37 fixed to the frame 31 of the rear door panel 30.

The fourth link 74 is a rod material whose both ends are pivotally supported by a swing shaft and can swing in the vertical direction, and one end portion (the left end portion in the example of FIG. 1) is connected to the third position P3. The other end (the right end in the example of FIG. 1) is connected to the middle portion of the second link 72.

Next, the operation of the movable home fence 10 of the present embodiment from the fully closed state to the fully open state will be described.

FIG. 4 is a diagram for explaining the operation of the movable home fence 10, and is a partially cross-sectional view showing a fully closed state. Arrows indicating the direction of movement and the action of force are shown at key points in the figure. The pantograph mechanism including the first link 71, the second link 72, the third link 73, and the fourth link 74 is in an extended state when the door is closed, in which the first position P1 is on the far side (door closing direction side) from the second position P2. be.

From this state, when the drive pulley 12d is driven counterclockwise when viewed from the platform side (arrow A1), the toothed belt 12v is driven counterclockwise when viewed from the platform side. Since the frame portion 31 of the rear door panel 30 is connected to the toothed belt 12v by the belt clamp 12c, the rear door panel 30 begins to be pulled into the door pocket portion 40 (arrow A2).

The movement of the rear door panel 30 is a force that pushes the second link 72 in the door opening direction (to the right in the figure) at the fourth link 74 via the third position bracket 37 (arrow A3).
Since the second link 72 is relatively fixed to the door pocket portion 40 at the second position P2, the second link 72 pushed by the fourth link 74 uses the second position P2 as a base point (in this case, the second link 72). The lower end swings in the door opening direction as a fulcrum) (arrow A4).

Then, the first link 71 is pulled in the door opening direction by this swing, and the front door panel 20 is moved in the direction of the door pocket portion 40 (arrow A5). Seen from the platform side, the front door panel 20 and the rear door panel 30 seem to start being pulled into the door pocket 40 at the same time.

FIG. 5 is a partial cross-sectional view showing an example of a movable home fence in an intermediate state from a fully closed state to a fully open state, and shows arrows indicating an operating direction and an action of a force at key points.
The electric motor 12m continues to rotate counterclockwise when viewed from the platform side (arrow A1'), and the rear door panel 30 also continues to move in the door opening direction (arrow A2').
In the pantograph mechanism, the fourth link 74 continues to push the second link 72 in the door opening direction (arrow A3'), and the second link 72 continues to swing (arrow A4') while moving toward the reduced state. Then, the front door panel 20 also continues to move in the door opening direction via the first link 71 (arrow A5').

FIG. 6 is a partial cross-sectional view showing an example of a movable home fence 10 in a fully open state.
The electric motor 12m is stopped after a predetermined number of rotations. Alternatively, when the front door panel 20 or the rear door panel 30 pulled into the door pocket 40 reaches a predetermined position and the limiter switch (not shown) is operated, the movable home fence 10 is fully opened and is on the platform. The opening for getting on and off is fully opened. At this time, the pantograph mechanism is in an extended state when the door is opened, in which the first position P1 is on the rear side (door opening direction side) from the second position P2. That is, the movable home fence 10 is opened when the pantograph mechanism transitions from the extended state when the door is closed to the extended state when the door is opened with the reduced state sandwiched between them.

To return the movable platform fence 10 from the fully open state to the fully closed state, the electric motor 12m is rotated in the reverse direction, and the drive pulley 12d is driven clockwise when viewed from the platform side. Then, the toothed belt 12v also rotates clockwise when viewed from the platform side, and the rear door panel 30 moves in the door closing direction together with the belt clamp 12c and is pulled out from the door pocket portion 40.

When the rear door panel 30 moves in the door closing direction, the third link 73 pulls the first link 71 in the door closing direction via the third position bracket 37. At the upper end of the first link 71, the second link 72 acts like a stick to the second position P2 and hardly moves, and as a result of being pulled by the third link 73, the lower end of the first link 71 is Swings in the direction of closing the door. As a result, the front door panel 20 also begins to be pulled out from the door pocket portion 40 in conjunction with it. Eventually, it returns to the fully closed state shown in FIG. 4 through the intermediate state shown in FIG. That is, the movable home fence 10 is closed when the pantograph mechanism transitions from the extended state when the door is opened to the extended state when the door is closed with the reduced state sandwiched between them.

As described above, according to the present embodiment, the opening can be made wider. Further, since the drive unit 12 is not provided on the door panel and is installed in the door pocket unit 40, it is advantageous in reducing the manufacturing cost, size, and weight as compared with the structure in which the drive unit is attached to the door panel as in Patent Document 4. Can be realized.

In addition, by configuring the pantograph mechanism using the first to fourth links with the first to third positions fixed, the increase in the height of the door pocket with respect to the increase in the width (width in the opening / closing movement direction) of the door panel is suppressed. can. If the width of the door panel (width in the opening / closing movement direction) must be increased in order to widen the opening, and the height of the door pocket must be increased inevitably, the height of the door pocket must be increased. As a result, train crews and staff may have poor visibility on the platform when checking safety when opening and closing doors. However, in the present embodiment, the pantograph mechanism is adopted, and the reduced state can be sandwiched in the process of transitioning from the extended state when the door is opened to the extended state when the door is closed, so that the width of the door panel (width in the opening / closing movement direction). It is possible to suppress the increase in the height of the door pocket with respect to the increase in the number of doors.

[Modification example]
The embodiment to which the present invention is applicable is not limited to the above embodiment, and components can be added, omitted, or changed as appropriate.

For example, like the movable home fence 10W illustrated in FIG. 7, the "right-mounted type" movable home fence 10 shown in the above embodiment and the "left-mounted type" whose structure is reversed left and right. By integrating the door pocket portion 40 and the control device 14 in common, a "double open type" can be configured.

3 ... Platform 10 ... Movable home rail 12 ... Drive unit 12c ... Belt clamp 12d ... Drive pulley 12g ... Deceleration mechanism unit 12j ... Driven pulley 12m ... Electric motor 12v ... Toothed belt 14 ... Control device 20 ... Front door panel 21 ... Frame Part 22 ... Transparent panel 23 ... Slider 24 ... Guide rail 30 ... Rear door panel 31 ... Frame part 32 ... Transparent panel 33 ... Guide rail 34 ... Slider 35 ... Slider 36 ... Guide rail 37 ... Third position bracket 40 ... Door pocket part 45 ... Guide rail 46 ... Slider 47 ... 2nd position bracket 51 ... 1st linear motion mechanism 52 ... 2nd linear motion mechanism 53 ... 3rd linear motion mechanism 54 ... 4th linear motion mechanism 71 ... 1st link 72 ... 2nd link 73 ... 3rd link 74 ... 4th link P1 ... 1st position P2 ... 2nd position P3 ... 3rd position

Claims (3)

With the door panel of the other party,
A rear door panel that movably supports the front door panel in the opening / closing direction, and
A door pocket that movably supports the rear door panel in the opening and closing direction,
A drive unit that moves the rear door panel with respect to the door pocket portion,
A first link whose one end is connected to the first position of the front door panel,
A second link having one end connected to the other end of the first link and the other end connected to the second position of the door pocket.
A third link, one end of which is connected to the middle of the first link and the other end of which is connected to the third position of the rear door panel.
A fourth link having one end connected to the third position and the other end connected to the middle of the second link.
The rear door panel is moved by the drive unit to move the third position, so that the first to fourth links form a stretchable pantograph mechanism with the second position as a base point, and the pantograph is provided. There are two states: an extended state when the door is closed, where the first position is on the front side of the second position, and an extended state when the door is opened, where the first position is on the rear side of the second position, with the mechanism sandwiching the reduced state. A movable home fence that opens and closes by transitioning between two states. The first position is on the lower rear side of the front door panel.
The second position is higher than the first position.
The third position is at a height intermediate between the first position and the second position in the height direction.
The movable home fence according to claim 1. The third position is located in the frame portion on the rear side of the rear door panel, and is located in the door pocket portion in the extended state when the door is closed.
The movable home fence according to claim 1 or 2.

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