JP4291224B2 - Plug door device for vehicle - Google Patents

Description

  The present invention relates to a vehicular plug door device, and more particularly to a vehicular plug door device configured such that a door that closes an entrance / exit on a side wall of a vehicle has a structure along an outer plate of the vehicle at the end of the closing operation. .

  Conventionally, what was shown in FIG. 3 as a plug door apparatus for vehicles is known.

  The door portion 51 of the plug door device is suspended via a bracket 53 from a guide rail 52 provided in the ceiling 51a above the entrance / exit 50a, and the traveling wheel 54 provided on the bracket 53 is guided by the guide rail. By rolling on 52, it opens and closes.

  The guide rail 52 can swing in the direction of the arrow ab about the support shaft 55, 56 is a pneumatic cylinder as a door opening / closing actuator, and its rod is connected to the bracket 53.

  When the door 51 moves to the closed position, the rods of the four door presser cylinders 57a, 57b and 58a, 58b extend all at once in the direction of the arrow c, and the airtight seal 59 provided at the peripheral edge of the entrance 50a. The door 51 is pressed against the door 51, whereby an airtight state is obtained (see, for example, Patent Document 1).

  By the way, recent high-speed railway vehicles, for example, the leading vehicle on the Shinkansen, tend to have a long nose with a streamlined tip to lower the air resistance and lower the ceiling of the vehicle body. For this reason, conventionally, the main components of the plug door device, specifically, the guide rail, the door drive device, the door closing switch, and the like have been stored in the ceiling portion above the entrance / exit, but the storage space cannot be secured.

  Also, as shown in FIG. 4, a plug door device is also known in which a guide rail 60 is arranged not in the upper part of the door part 61 but in the state parallel to the door part 61 (see, for example, Patent Document 2).

In the figure, reference numeral 62 denotes an arm that connects the door portion 61 and the guide rail 60. The arm 62 is connected to a carriage 63, and the carriage 63 slides on a sliding path 64. .
Japanese Patent Publication No. 7-47387 Japanese Patent Publication No. 7-17195

  In such a configuration, since the main components of the plug door device are arranged on the side of the door portion 61, it is not necessary to secure a space for storing the main components above the door portion 61.

  However, with this configuration, the guide rail 60 must be disposed above the boarding passage so as not to obstruct passengers getting on and off, so the vertical size of the door portion 61 eventually increases, and the door drive device also increases accordingly. Since the size must be increased, the plug door device cannot be made compact.

  The present invention has been made in consideration of the above-described problems in the conventional plug door device for a vehicle. For example, the present invention is applicable to a vehicle that cannot secure a sufficient space in a ceiling portion by being formed in a streamlined manner. An object of the present invention is to provide a compact vehicle plug door device that can be applied.

The present invention provides a door provided on the side wall of the vehicle body for opening and closing the entrance / exit, a door rail for guiding the door from the open position to the closed position along the side wall of the vehicle body, and vice versa, and the door in the open position and the closed position. A door drive means for moving between the door and a lateral movement means for moving the door away from the entrance / exit when the door is opened and moving the separated door toward the entrance when the door is closed The door rail is suspended from the ceiling of the vehicle body at a predetermined distance away from the door inward, and the lateral movement means is provided between the door rail and the door. A door hanger that extends in a substantially horizontal direction from the door rail toward the door and moves along the door rail, and is fixed to the door in a state of being laid on the door hanger and the door. A movable portion that moves relative to the door hanger in the vehicle width direction, and a guide rail that moves the movable portion toward the entrance / exit when the door is closed, and the door driving means drives the door to move the door. It is configured to guide the guide portion of the guide rail when moving to the closed position, move the movable portion toward the entrance, and close the door to which the movable portion is attached , and A vehicle plug door device in which either one of the door hanger and the movable part is provided with a slide rail, and the other is provided with a slide block that is guided by the slide rail and slides in the vehicle width direction. .

According to the present invention, the door hanger extends from the door rail toward the door in a substantially horizontal direction, and the door hanger and the door are installed by a movable part that moves relative to the door hanger in the vehicle width direction. The mechanism for opening and closing the door is configured to be flat in the horizontal direction, so that the plug door device can be provided in a compact manner even in a vehicle that cannot secure a sufficient space in the ceiling portion. In addition, since either one of the door hanger and the movable part is provided with a slide rail and the other is provided with a slide block that is guided by the slide rail and slides in the vehicle width direction, the door hanger is attached to the door lateral movement means. Since it can be used as a part of the configuration, the lateral movement means can be arranged in the vicinity of the door hanger.

In the present invention, if the door driving means is disposed on the opposite side of the door rail to the lateral movement means in the vehicle width direction, the weight balance between the door driving means and the lateral movement means suspended from the ceiling can be stabilized.

  In the present invention, if the guide rail is formed with a linear guide portion arranged along the door rail and a curved guide portion that is formed at the door closing side end portion of the linear guide portion and curves toward the door, the guide rail The door can be brought into contact with or separated from the entrance with a simple configuration in which the movable part is moved along each guide part.

As is apparent from the above description, according to the present invention of claim 1, the door hanger extends from the door rail toward the door in a substantially horizontal direction, and the door hanger and the door are connected to the door hanger. Since a movable part that moves relatively in the width direction is installed, the mechanism for opening and closing the door is configured to be flat in the horizontal direction, so that a plug door device can be provided compactly even for vehicles that cannot secure sufficient space in the ceiling. Can do. In addition, since either one of the door hanger and the movable part is provided with a slide rail and the other is provided with a slide block that is guided by the slide rail and slides in the vehicle width direction, the door hanger is attached to the door lateral movement means. Since it can be used as a part of the configuration, the lateral movement means can be arranged in the vicinity of the door hanger.

  According to the second aspect of the present invention, if the door driving means is disposed on the opposite side of the door rail from the lateral movement means, the weight balance between the door driving means and the lateral movement means suspended from the ceiling can be stabilized.

According to the present invention of claim 3 , the door can be brought into contact with or separated from the entrance / exit with a simple configuration in which the movable portion is moved along the linear guide portion or the curved guide portion of the guide rail. .

  Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 shows an embodiment of a vehicle plug door device according to the present invention. A vehicle to which this plug door device is applied is, for example, a front end in order to make air resistance smaller like a leading vehicle of a bullet train. This is a vehicle having a streamlined part and a long nose, that is, a vehicle whose ceiling is lower than that of a conventional vehicle body.

  The cross-sectional view shown in the figure is a view of the vehicle body from the front (corresponding to the EE arrow in FIG. 2). The entrance / exit 2 is opened and closed by moving 3 in the front-rear direction (depth direction of the paper). In the figure, the door 3 is further moved in the vehicle width direction from the closed position and is in a state along the outer plate of the vehicle (hereinafter referred to as a fully closed state).

  A truss structure frame 5 constituting the ceiling 4 of the vehicle is formed in an arc shape, and a door rail 6 is arranged at a position away from the door 3 by a predetermined distance S on the vehicle inner side.

  The door rail 6 is fixed to a U-shaped bracket 7 suspended from the frame 5 via a mounting bracket 8 having an angle.

  A rail groove 6a for running the door hanger 9 is formed on the left side wall of the door rail 6 (opposite to the guide rail 14 described later), and a bearing holding metal fitting 6b is attached to the rail groove 6a. The upper end portion 9a of the door hanger 9 is supported through the upper and lower bearings held by the door.

  The door hanger 9 includes a vertical plate portion 9b suspended from the upper end portion 9a, and a horizontal plate portion 9c bent from the vertical plate portion 9b toward the door 3 in a substantially horizontal direction.

  A sliding block 11 for sliding a slide rail 10 to be described later is attached to the distal end portion 9d of the horizontal plate portion 9c.

  The sliding block 11 is formed in a C shape with a cross section opening upward when viewed from the direction of the arrow A, and holds the slide rail 10 in a state of being sandwiched from both sides (the front-rear direction in FIG. 1). The slide rail 10 is allowed to slide.

  The slide rail 10 that slides on the slide block 11 is fixed to the right end 12a of the movable plate 12 that is laid on the door hanger 9 and the door 3 in the vehicle width direction, and the left end 12b of the movable plate 12. Is bent downward and fixed to the upper inner wall 3 a of the door 3.

  A rotating shaft 13 a of the guide roller 13 is planted on the upper surface of the right end 12 a of the movable plate 12. The movable plate 12 and the guide roller 13 function as a movable part.

  The guide roller 13 is adapted to engage with the guide groove 14 a of the guide rail 14, and the guide rail 14 is fixed to the right side wall in a state parallel to the door rail 6.

  As shown in the plan view of FIG. 2, the guide rail 14 has a straight guide portion 14b parallel to the door rail 6 and a curved guide portion 14c formed at the end on the door closing side, and the guide groove 14a has both guide portions. 14b and 14c are formed so as to communicate with each other.

  Therefore, the guide roller 13 engaged with the guide groove 14a moves linearly when traveling on the linear guide portion 14b, and changes its direction to approach the entrance 2 when traveling on the curved guide portion 14c. Will move.

  The guide roller 13 is provided at the center of the movable plate 12 (corresponding to the center of the door 3). When the guide roller 13 moves to the tip of the curved guide portion 14a, the center p. The guide rail 14 is positioned so as to be positioned at c. In the figure, w1 is the entrance / exit width, w2 is the door width, d. s indicates a door stroke.

  Reference numeral 15 denotes a pneumatic cylinder (door driving means), which is fixed to the left side of the door rail 6, specifically, to the mounting bracket 8.

  When the rod tip 15a of the cylinder 15 expands and contracts between a contracted position (shown by a solid line in the figure) and an extended position (see 15a 'shown by a two-dot chain line in the figure) and moves to the extended position The guide roller 13 on the movable plate 12 moves to the position 13 '. As a result, the door 3 is moved rearward (see 3 ') in a state where the door 3 is pulled inward from the entrance 2 and the entrance 2 is opened. Reference numeral 16 denotes a connecting member that connects the rod tip 15a and the door hanger 9.

  Returning to FIG.

  An L-shaped bracket 17 is attached to the lower inner wall of the door 3 toward the right side (inside of the door 3), and the rotating shaft 18 a of the second guide roller 18 is fixed to the lower surface of the bracket 17. .

  The second guide roller 18 can move along the guide groove 19a of the second guide rail 19 fixed to the vehicle frame. The second guide rail 19 is the above-described guide rail. 14 and basically the same configuration. Therefore, the door 3 is opened and closed by being guided by the guide rails 14 and 19 at both upper and lower sides.

  Next, the operation of the plug door apparatus having the above configuration will be described with reference to FIG.

  It is assumed that the door 3 is in a fully closed state.

  When air pressure is supplied to the opposite side of the rod of the pneumatic cylinder 15 and the rod tip 15a extends in the direction of arrow B, the door hanger 9 (see FIG. 1) is also interlocked in the direction of arrow B via the connecting member 16.

  Since the door hanger 9 and the movable plate 12 are connected via the slide block 11 and the slide rail 10, the movable plate 12 also moves in the direction of the arrow B. At this time, the guide roller attached to the movable plate 12 Since 13 moves along the curved guide portion 14c of the guide rail 14, the movable plate 12 first slides in the vehicle width direction (arrow D direction). Since the movable plate 12 and the door 3 are fixed, the door 3 is drawn into the vehicle body.

  Next, when the guide roller 13 moves from the curved guide portion 14c to the linear guide portion 14b, the pull-in operation of the door 3 is finished, and the door open operation is continued.

  The door opening operation ends when the door 3 reaches a stopper (not shown). At this time, the guide roller 13 is positioned at the terminal end portion 14d of the linear guide portion 14b. As a result, the door 3 stops at the open position (see the door 3 'shown by the two-dot chain line).

  On the other hand, the door closing operation is performed through the reverse process to the above, but when the guide roller 13 moves from the linear guide portion 14b to the curved guide portion 14c, the guide roller 13 moves in the direction parallel to the door rail 6. Therefore, the door 3 is pushed out toward the entrance 2 and the guide roller 13 is moved to the tip of the curved guide portion 14c.

  During the door opening / closing operation, since the second guide roller 18 is moved along the second guide rail 19 also in the lower portion of the door 3, a stable opening / closing operation can be obtained.

  As described above, the plug door device shown in the above embodiment connects the door rail 6 and the door 3 using the door hanger 9 and the movable plate 12 that are disposed sideways, and connects the door hanger 9 and the movable plate 12 to each other. Further, a guide rail 14 as a guide for performing the lateral movement is provided between the door rail 6 and the door 3, specifically, opposite to the rail groove 6 a of the door rail 6. Since the guide rails 14 are arranged in the empty space on the side, the main mechanism for opening and closing the door 3 can be accommodated in a flat space. As a result, it is possible to incorporate the plug door device even in a vehicle where the ceiling space is limited.

  In addition, in the arrangement of the horizontal plate portion 9c and the movable plate 12 of the door hanger 9 of the above-described embodiment, the substantially horizontal means that the guide roller 13 guided by the guide rail 14 moves in the horizontal direction along with the door 3. It can be arranged slightly downward or slightly upward toward the door 3 within the range that can be achieved. If the door 3 is disposed slightly forward, the movement of the door 3 during the door fully closing operation is smooth, and if it is disposed slightly forward, the airtight opening of the door 3 during the door opening operation is smooth.

  Further, the distance S between the door rail 6 and the door 3 may be a distance that allows the guide rail 14 to be disposed and a stroke for moving the door 3 in a substantially horizontal direction can be secured. Further, by adjusting the height of the bracket 7, it is possible to deal with vehicles having different ceiling heights.

  The door driving means of the present invention is constituted by a pneumatic cylinder in the above embodiment, but is not limited thereto, and may be constituted by an electric motor and a ball screw connected to its output shaft.

It is side surface sectional drawing which shows the whole structure of the plug door apparatus which concerns on this invention. It is a top view of the plug door apparatus shown in FIG. It is side surface sectional drawing of the conventional plug door apparatus. It is a perspective view of another conventional plug door device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle side wall 2 Entrance / exit 3 Door 4 Ceiling 5 Frame 6 Door rail 7 Bracket 9 Door hanger 10 Slide rail 11 Sliding block 12 Movable plate 13 Guide roller 14 Guide rail 14a Guide groove 14b Straight guide part 14c Curved guide part 15 Pneumatic cylinder 16 Connection member 18 Second guide roller 19 Second guide rail

Claims (3)

A door provided on the side wall of the vehicle body for opening and closing the entrance / exit, a door rail for guiding the door from the open position to the closed position along the side wall of the vehicle body and vice versa, and the door between the open position and the closed position In a vehicle plug door device comprising: a door drive means for movement; and a lateral movement means for separating the door from the entrance / exit when the door is opened and moving the door separated to the entrance / exit when the door is closed.
The door rail is suspended from a vehicle body ceiling at a predetermined distance away from the door, and the lateral movement means is provided between the door rail and the door. A door hanger that extends in a substantially horizontal direction toward the door and moves along the door rail, and is fixed to the door in a state of being laid on the door hanger and the door, and the vehicle width direction with respect to the door hanger And a guide rail that moves the movable part toward the entrance / exit when the door is closed, and the guide is used when the door is moved to the closed position by driving the door driving means. while guided by the guide portion of the rail is moved toward the entrance to the movable portion is configured to operate to close the door to which the movable portion is mounted, and, on While the slide rail is provided on one of the door hangers and the movable part, for vehicles, wherein the sliding block is provided which slides guided on the slide rail to the other in the vehicle width direction Plug door device. 2. The vehicle plug door device according to claim 1, wherein the door driving means is disposed on the side of the door rail opposite to the lateral movement means in the vehicle width direction . The guide rails, and a linear guide which is arranged along the door rail, to claim 1 or 2 and a curved guide portion which is curved toward the door are formed in the door closing side end portion of the linear guide The plug door device for vehicles as described.

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