JP2508117Y2 - Support device for closed position of plug door - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a technique for reliably holding a door in a closed position when the plug door is in a fully closed state, and ensuring the airtightness thereof.

[Conventional technology]

As showing the structure of the conventional plug door,
For example, there is a technique described in Japanese Utility Model Publication No. 57-58043.
The structure of this plug door will be described with reference to the drawings of the publication and the reference numerals thereof. An upper guide rail 7 and a lower rail 8 for guiding the upper and lower portions of a door (side sliding door) 1 are attached to a vehicle body, and both rails 7 The doors 1 and 8 are curved inwardly of the vehicle body, the opening / closing cylinder 12 fixed to the vehicle body moves the door 1 in the direction along the side wall of the vehicle body, and the guide cylinder 20 fixed to the vehicle body moves. Door 1 to both rails by
It is designed to move along the orbit of the curved part of 7,8.

The upper end of the door 1 is supported by the upper guide rail 7 through the connecting metal 3 and the guide door wheel 2 at the door end side, and at the rear end of the door through the guide roller 24 and the levers 17 and 18, the cylinder of the guide cylinder 20. It is supported by the rod 21, and the lower part of the door 1 is supported by the lower rail 8 only on the door tip side via the connecting metal 5 and the guide metal 4. That is, the door 1 is held in the closed position in a state where only the upper and lower parts of the door 1 on the door end side and the upper part of the door tail side are supported.

[Problems to be solved by the device]

However, according to the above-mentioned publication, when the door 1 is in the closed position, the lower part of the door tail side of the door 1 is pushed out toward the outside of the vehicle body due to a pressure difference between the inside and outside of the vehicle body and a deliberate external force generated during traveling. As a result, the airtightness of the interior of the vehicle is deteriorated to give an occupant an uncomfortable feeling, or a finger is stuffed in the gap between the door 1 and the side wall of the vehicle body.

Further, as means for securely holding the door 1 in the closed position,
It is conceivable to increase the number of connection points between the door 1 and the opening / closing device that contributes to the door opening / closing operation, and to increase the rigidity of the door 1. In the former case, the connecting mechanism of the opening / closing device becomes complicated, and the airtight holding force of the door 1 depends on the closing force of the driving part of the opening / closing device. Therefore, the output of the driving part (driving cylinder) must be increased. For this reason, it becomes necessary to increase the hydraulic pressure (or air pressure) that is the drive source or to increase the cylinder diameter of the drive unit, which leads to an increase in the size of the switchgear and a complicated structure. In the latter case, it is necessary to increase the strength of the vehicle side wall (around the entrance / exit) and the opening / closing device due to the increase in the weight of the door 1, which causes a problem of high cost.

In view of the above problems, the present invention proposes a closed position of a plug door that can reliably keep the door airtight without increasing the rigidity of the door or the side wall of the vehicle body (around the entrance / exit) and without increasing the cylinder output of the opening / closing device. The technical problem is to provide a supporting device.

[Means for solving the problem]

As a concrete means for achieving the above technical problem, the opening / closing movement of the door is performed in parallel with the entrance / exit opening formed in the vehicle side wall in a diagonal direction inside and outside the vehicle and along the vehicle side wall. In a plug door configured to be moved by moving in a direction, a locking member having an engaging surface formed in the same or substantially the same direction as the parallel movement direction is provided on either one of the door and the vehicle side wall, A protruding member facing the locking member and extending in the same or substantially the same direction as the engaging surface is provided on either the door or the vehicle side wall, and the door moves from the open position to the closed position at the tip of the protruding member. Is guided to approach either one of the door and the vehicle side wall along the engaging surface when the door is closed, and restricts the outward displacement of the door at the door closed position. There is a contact part.

[Action]

According to the above means, the locking member is provided on one of the door and the vehicle side wall and the projecting member is provided on the other side, and the contact portion provided at the tip of the projecting member moves the door from the open position to the closed position. At this time, since it is guided so as to approach either one of the door or the vehicle side wall along the engagement surface, and is configured to restrict the displacement of the door to the vehicle outside at the door closed position, When the door moves diagonally in and out of the vehicle at the time of opening and closing the door, the contact portion of the protruding member and the engagement surface of the locking member can move smoothly in the direction of separation, as a matter of course. The overall structure is extremely simple and the number of parts can be reduced.

Further, when the door moves from the open position to the closed position, the engaging surface of the locking member guides the abutting portion of the projecting member, and when the door reaches the closed position, the engaging surface of the locking member. Since the abutting portion of the protruding member is completely engaged with the door, it is possible to mechanically prevent the door in the closed position from moving to the outside of the vehicle side wall. Further, the locking member and the projecting member may be arranged so as to face each other when the door reaches the vicinity of the closed position, and may be arranged at any place where a gap is created between the door and the vehicle side wall. Although it may be installed, if this is the place where the door and the opening / closing device are not connected, for example, in the case of the conventional one (Japanese Utility Model Publication No. 57-58043), below the door end side of the door, In the case of the plug door of the type shown in the following embodiment, it is possible to obtain a sufficient effect only by installing it on the upper part of the door on the door tail side.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a schematic configuration of a plug door opening / closing device to which the present invention is applied will be described with reference to FIGS. 4 to 6.

When the door 1 is in the closed position, the opening / closing cylinder 2, the loading / unloading cylinder 3, the guide rail 4, the frame body 5 and the connecting rod 6 are held in the state shown by the solid line in the figure, and are attached to the peripheral portion of the door 1. The seal member 7 is in pressure contact with the vehicle side wall 8. Next, when the opening / closing device starts the opening operation, both the piston rod 2a of the opening / closing cylinder 2 and the piston rod 3a of the loading / unloading cylinder 3 project and move.
The guide rail 4, the frame 5 and the connecting rod 6 are guide mechanisms.
The door 1 fixed to the frame 5 through the connecting rod 5a is integrally guided to the vehicle 1 in the diagonal direction outward of the vehicle, and the door 1 is also fixed in the diagonal direction outward of the vehicle (see FIG. 4a). Direction). Then, when the piston rod 3a of the loading / unloading cylinder 3 is projected and moved to a predetermined position, the movement is stopped, and thereafter only the piston rod 2a of the opening / closing cylinder 2 is further projected and moved so that the frame 5 and the connecting rod 6 are moved. The door 1 also moves in the direction along the vehicle side wall 8 and the door 1 also moves in the direction along the vehicle side wall 8 (direction b in FIG. 4), and at the time when it reaches the moving end, that is, when it reaches the fully open position, the chain line The state shown in. In this way, when the upper part of the door 1 moves in the a direction and the b direction, the lower part of the door 1 is, as shown in FIG.
The guide rollers 10a and 11a attached to the tips of the arms 10 and 11 on the door tip side and the door butt side are a pair of guide rails 12,
The door 1 is guided in the directions a and b by 13, and the door 1 is in the closed position when the door 1 is in the closed position, and in the fully open position when the door 1 is in the broken line.

In addition to the above configuration, this plug door is provided with a support device 15 that supports the door 1 in the closed position. As shown in FIG. 1 to FIG. 3, the support device 15 is fixed to a locking member 16 fixed to the upper part of the door 1 on the side of the door but above the entrance opening A in the vehicle side wall 8. And a roller 18 as an abutting portion at the tip of the protruding member 17.
Is attached.

The engaging surface 16a of the locking member 16 (see FIG. 1) is the door 1
The inclined surface is the same as or substantially the same as the vehicle inside / outside diagonal direction (direction a), which is the moving direction of the vehicle. At the closed position of the door 1 shown by the solid line in FIG.
The peripheral surface of 8 is closely engaged.

Therefore, when the door 1 is in the closed position, even if a pressing force is applied to the door 1 in the vertical direction outside the vehicle (direction c), the engagement surface 16a of the locking member 16 and the roller at the tip of the protruding member 17 can be prevented. By engaging with 18, the pushing movement of the door 1 in the c direction is blocked. Further, since the engaging surface 16a is the same or substantially the same inclined surface as the a direction, when the door 1 is translated in the diagonal direction (a direction) inside and outside the vehicle,
Since the engagement surface 16a can move smoothly along the roller 18, it does not hinder the opening and closing operation of the door 1.

In addition, in the above-described embodiment, since three points of the door tip side upper and lower portions of the door 1 and the door tail side lower portion are supported by the opening / closing device, the door 1 is not supported on the door tail side upper portion. Although the support device 15 is provided only at the corresponding position, it has been
For the type in which the lower part of the door 1 on the door sill side is not supported by the opening / closing device as in Japanese Patent Laid-Open No. 57-58043), it is preferable to provide the support device 15 at a position corresponding to the lower part of the door sill side.

Further, in the above embodiment, although the lower part of the door 1 on the front side and the lower part on the rear side of the door are supported by the guide rails 12 and 13,
Since some rattling in the inward and outward directions of the vehicle cannot be avoided, the supporting devices are also provided at the positions corresponding to the lower part of the door tip side and the lower part of the door tail side in this embodiment, respectively.
Needless to say, 15 may be provided.

Further, in the above-described embodiment, the locking member 16 is fixed to the door 1 and the protruding member 17 is fixed to the vehicle side wall 8. On the contrary, the protruding member 17 is fixed to the door 1. However, the locking member 16 may be fixed to the vehicle side wall 8.

[Effect of device]

As described above, the locking member is provided on one of the door and the vehicle side wall and the projecting member is provided on the other side, and the contact portion provided at the tip of the projecting member moves the door from the open position to the closed position. At this time, since it is guided so as to approach either one of the door or the vehicle side wall along the engagement surface, and is configured to restrict the displacement of the door to the vehicle outside at the door closed position, Without exerting any adverse effect on the opening / closing operation of the door, it is possible to reliably receive the pressing force exerted on the door in the vertical direction to the outside of the vehicle. Also, the situation that the door is pushed out of the vehicle can be avoided, and the advantage that the airtightness in the vehicle can be reliably maintained is obtained. In addition, it is not necessary to increase the output of the opening / closing cylinder or to increase the rigidity of the door or the vehicle side wall in order to obtain a sufficient airtight holding force, and it is not necessary to increase the number of connecting points between the door and the opening / closing device. The advantage is that it is possible to effectively prevent the structure from becoming complicated and the cost from increasing. Further, the locking member and the projecting member can be installed at arbitrary positions without any connection with the opening / closing device, so that a plurality of installations are possible, and there is an advantage that the rigidity of the door does not decrease.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a cross-sectional plan view showing the structure of a closed position support device, and FIG. 2 is a front view showing the structure of the closed position support device. FIG. 4 is a side view of a longitudinal section of a main part of the closed position supporting device, FIG. 4 is a plan view showing the upper structure of the plug door, FIG. 5 is a front view showing the upper structure of the plug door, and FIG. It is a top view which shows a lower structure. 1 ... Door 8 ... Vehicle side wall 15 ... Supporting device 16 ... Engaging member 16a ... Engaging surface 17 ... Projecting member 18 ... Abutting part (roller) A ... Entrance / exit opening

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Yoshi ▼ Tomio Kawa 7 862, Hagigaoka, Shirayakiji-cho, Nara City, Nara Prefecture, Japan (56) References: 62-59269

Claims (1)

(57) [Scope of utility model registration request] 1. Opening and closing movement of a door includes parallel movement in a diagonal direction inside and outside a vehicle with respect to an entrance / exit opening formed in a side wall of the vehicle.
In a plug door configured to be moved in a direction along a vehicle side wall, one of the door and the vehicle side wall has an engagement surface formed in the same or substantially the same direction as the parallel movement direction. A stopper member is provided, and a protruding member facing the locking member and extending in the same or substantially the same direction as the engaging surface is provided on the other of the door and the vehicle side wall, and the door is provided at the tip of the protruding member. Is engaged with the engagement surface when moving from the open position to the closed position and is guided so as to approach either one of the door or the vehicle side wall along the engagement surface, and at the door closed position, A closed position support device for a plug door, comprising an abutting portion for restricting displacement of the door to the outside of the vehicle.