JP4859024B2 - Outslide door device for vehicle - Google Patents

Description

  The present invention relates to a slide door used for opening and closing a doorway provided on a side surface of a vehicle such as a railway, a bus, and a passenger car. More specifically, in a closed state, the slide door is flush with a side surface of a vehicle body, and is in an open state. The present invention relates to a vehicular out-slide door device in which a slide door slides in the front-rear direction of the vehicle body, stays parallel to the side surface of the vehicle body, and moves outward in the vehicle width direction of the vehicle body.

Conventionally, as a sliding door for a vehicle, when the sliding door is closed, the outer surface of the sliding door can be set to be flush with the side surface of the vehicle, while when the sliding door is opened, the sliding door is separated from the side surface of the vehicle to slide. Outslide doors have been developed that avoid interference between the door and the side of the vehicle. As an outslide door device for a vehicle, Japanese Patent Application Laid-Open No. 11-48783 discloses a guide rail having a bowed shape for movably guiding a stay supporting a slide door, and both ends connected to the stay. A slide having a single drive tape disposed so as to draw a closed curve along the shape of the rail, a rotary drive device that drives the drive tape, and a tension mechanism that applies a predetermined tension to the drive tape. A drive mechanism for an outslide door is disclosed in which when the door is opened, the slide door slides in the front-rear direction of the vehicle and moves outward in the vehicle width direction of the vehicle.
Japanese Patent Laid-Open No. 11-48783

  However, the conventional vehicle out-slide door device has a complicated drive mechanism, requires a large installation space because of the drive with the closed-curve drive tape, and has a weak door opening / closing force due to the rotation drive by the motor, and the weight of the door There is also a problem in durability for supporting the tire, and there is also a problem in attachment to the vehicle body at high cost.

  The present invention provides an outslide door device for a vehicle that solves the problems of the prior art, has a simple structure, has a strong door opening / closing force, is durable, has a small installation space, and is easy to mount a vehicle body. Objective. In the present invention, “front” refers to the direction in which the slide door is closed, and “rear” refers to the direction in which the slide door is open.

In order to solve the above-described problems, the vehicle outslide door device of the present invention has an air cylinder (1) fixed in the vicinity of the entrance of a vehicle body, and a rear portion is straight and a front portion is below the air cylinder (1). A guide rail (8) formed continuously so as to form a curved portion that bends inwardly is disposed, and a rear connecting shaft (2) is provided behind a connecting member (3) having a length substantially the same as the length of the curved portion. The front connecting shaft (6) is fixedly connected to the front, the rear connecting shaft (2) and the lower portion of the front connecting shaft (6) are rear rollers (4) coaxially with the connecting shafts, A front roller (5) is rotatably attached, the rollers (4) and (5) are disposed on the guide rail (8) so as to be able to travel, and the upper end of the rear connecting shaft (2) and the air cylinder ( 1) Connect the tip of the piston rod to the front connecting shaft ( ) In characterized by rotatably connecting the connecting plate for connecting the sliding door (9) (7).

In the vehicle out-slide door device according to the present invention, the linear portion of the guide rail (8) can be used when the rear roller (4) of the rear connecting shaft (2) is in any state of opening / closing operation of the slide door (9). It arrange | positions so that it may be located in.

In the vehicular out-slide door device of the present invention, the linear portion of the guide rail (8) is disposed immediately below the air cylinder (1) in parallel with the direction in which the piston of the air cylinder (1) extends. Features.

An air cylinder is fixed in the vicinity of the entrance of the vehicle body, and a guide rail formed continuously so as to be a curved portion where the rear portion is a straight portion and the front portion is bent inward is disposed at the lower portion of the air cylinder . The rear connecting shaft is rotatably connected to the rear of the connecting member having the same length as the length, the front connecting shaft is fixedly connected to the front, and the lower connecting shaft and the front connecting shaft are coaxial with the connecting shafts. A rear roller and a front roller are rotatably attached to each other, each of the rollers is movably disposed on the guide rail, the rear connecting shaft and the tip of the piston rod of the air cylinder are connected, and slide on the front connecting shaft. Due to the structure in which the connecting plate that connects the doors is rotatably connected, the drive means is an air cylinder that moves linearly, so the door opening / closing force is strong, the installation space is small, and the installation to the vehicle body is easy. In can provide a low-cost out-of-sliding door system.
Further, by adopting a configuration in which the length of the curved portion of the guide rail is substantially the same as the length of the connecting member, the curvature and length of the curved portion of the guide rail are reduced, so that the running resistance when the front roller travels the curved portion is reduced. In addition, the amount of protrusion of the slide door from the side surface of the vehicle body can be set to the minimum distance at which the slide door and the side surface of the vehicle body do not interfere with each other.
With the configuration in which the rear roller of the rear connecting shaft is positioned so as to be positioned on the straight portion of the guide rail in any state of the opening / closing operation of the slide door, it is not necessary to provide a rotation mechanism such as a clevis mechanism in the air cylinder body. The number of parts can be reduced and a low-cost outslide door device can be obtained.
By connecting the straight portion of the guide rail directly below the air cylinder in parallel with the direction in which the air cylinder extends, the connecting portion of the rear connecting shaft with the air cylinder and the rear roller running on the guide rail are coaxial. And the installation space can be reduced.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a door closed state and a door open state of an outslide door device for a vehicle according to the present invention, FIG. 2 is a front view of the door closed state, and FIG. 3 is a front view of the door open state. FIG. 4 is a side view of the door closed state, and FIG. 5 is a side view of the door open state.

  In the outslide door device for a vehicle, an air cylinder 1 for driving a slide door that expands and contracts in the sliding direction of the slide door 9 is fixedly disposed in the vicinity of the entrance of the vehicle. A guide rail 8 is fixedly disposed immediately below the air cylinder 1. The guide rail 8 is U-shaped in cross section, and is fixedly arranged so that its opening faces upward. The guide rail 8 is continuously formed so that the direction in which the slide door 9 slides to the open state is a straight portion, and the direction in which the slide door 8 is closed is a curved portion that bends inward in the vehicle. Yes. The linear portion of the guide rail 8 is arranged and fixed so as to be in a position directly below the direction in which the air cylinder 1 extends. In the present invention, for convenience of explanation, the direction in which the slide door 9 is in the open state is referred to as the rear, and the direction in which the slide door 9 is in the closed state is referred to as the front.

  The connecting member 3 is disposed between the air cylinder 1 and the guide rail 8. The connecting member 3 is U-shaped in cross section and is arranged so that the opening thereof faces the outside of the vehicle. The rear connecting shaft 2 is connected to the rear end portion of the connecting member 3 so as to be rotatable with respect to the connecting member 3 about the vertical axis. The upper and lower ends of the rear connecting shaft 2 are arranged so as to protrude from the upper and lower surfaces of the connecting member 3 having a U-shaped cross section. The front connecting shaft 6 is fixedly connected to the front end of the connecting member 3. Only the lower end portion of the front connecting shaft 6 is disposed so as to protrude from the lower surface of the connecting member 3 having a U-shaped cross section.

  The upper end of the rear connecting shaft 2 is connected to the tip of the piston rod of the air cylinder 1. A roller 4 is connected to the lower end of the rear connecting shaft 2 so as to be rotatable about a vertical axis. A roller 5 is coupled to the lower end of the front coupling shaft 6 so as to be rotatable about a vertical axis. The rollers 4 and 5 are movably disposed in a U-shaped guide rail 8 whose upper surface is open. A connecting plate 7 is connected to the front connecting shaft 6 so as to be rotatable with respect to the front connecting shaft about a vertical axis. The connecting plate 7 is a plate-shaped member having a self-shaped L section, and a sliding door 9 is fixed to the tip of the connecting plate 7.

  The roller 4 connected to the lower end portion of the rear connecting shaft 2 is positioned in a straight line portion near the curved portion of the guide rail 8 when the slide door 9 is in the closed state, and the guide rail 8 is also in the fully open state. It arrange | positions so that it may be located in a straight part. Since the rear roller 4 connected to the rear connecting shaft 2 connected to the tip of the piston rod of the air cylinder 1 that moves linearly travels only on the straight portion of the guide rail 8, the rear end of the air cylinder 1 and the piston It is not necessary to provide a rotation mechanism such as a clevis mechanism at the connecting portion of the rod tip, and the number of parts can be reduced. In addition, since the linear portion of the guide rail 8 is arranged so as to extend in parallel and directly below the direction in which the air cylinder 1 expands and contracts, the connecting portion between the upper end of the rear connecting shaft 2 and the air cylinder 1, and the rear connecting shaft 2 Since the rear roller 4 connected to the lower end of each of the two is aligned in a straight line, the installation space can be reduced.

  The front roller 5 connected to the lower end of the front connecting shaft 6 is located near the front end of the curved portion of the guide rail 8 when the slide door 9 is closed, and the guide rail when the slide door is fully open. It arrange | positions so that it may be located in 8 linear parts. The curvature and length of the curved portion of the guide rail 8 are such that when the sliding door 9 is opened and closed, the sliding door 9 projects outward at an interval that does not interfere with the side surface of the vehicle body, and the rear roller 4 traveling on the straight portion It is set so that the running resistance of the front roller 5 running along the curved portion does not increase. The distance between the rollers may be substantially the same as the length of the curved portion, and the length of the connecting member 3 in which the front connecting shaft 6 and the rear connecting shaft 2 are arranged in the vicinity of both ends thereof is substantially the curve of the guide rail 8. The length of the part is preferable.

  Next, the opening / closing operation | movement of the outslide door apparatus for vehicles of this invention is demonstrated. The left side of FIG. 1 and FIGS. 2 and 4 show the closed state of the slide door 9, and the slide door 9 supported by the connecting plate 7 is in a position flush with the outer surface of the vehicle. In this state, the front roller 5 connected to the front connection shaft 6 is positioned in the vicinity of the front end of the curved portion of the guide rail 8, and the rear roller 5 connected to the rear connection shaft 2 is connected to the guide rail 8. It is located in the straight line part in the vicinity of the boundary with the arcuate part.

  When the piston rod of the air cylinder 1 is extended by an operation from the driver's seat, the rear roller 4 of the rear connection shaft 2 connected to the tip of the piston rod travels with the straight portion of the guide rail 8 facing rearward. The front roller 5 of the front connecting shaft 6 that rotatably connects the sliding door 9 via the connecting plate 7 first travels along the curved portion of the guide rail 8 while keeping the sliding door 9 parallel to the side surface of the vehicle body. While sliding backward, it moves outside a predetermined distance from the outer surface of the vehicle body. When the front roller 5 passes through the curved portion, the front roller 5 and the rear roller 4 smoothly slide and move rearward along the straight portion, and the slide door 9 is fully opened. Reference numeral 10 denotes an opening / closing locus of the slide door 9.

  The sliding door 9 is closed by reversing the piston rod of the air cylinder 1 in reverse to the opening operation.

It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention.

Explanation of symbols

1: Air cylinder 2: Rear connecting shaft 3: Connecting member 4: Back roller 5: Front roller 6: Front connecting shaft 7: Connecting plate 8: Guide rail 9: Slide door 10: Opening / closing locus of the slide door

Claims (3)

An air cylinder (1) is fixed in the vicinity of the entrance / exit of the vehicle body, and a guide rail (8) is formed continuously at the lower part of the air cylinder (1) so that the rear part is a straight part and the front part is a curved part that curves inward. ), The rear connecting shaft (2) is rotatably connected to the rear of the connecting member (3) having a length substantially the same as the length of the curved portion , and the front connecting shaft (6) is fixedly connected to the front. A rear roller (4) and a front roller (5) are rotatably attached to the lower part of the rear connection shaft (2) and the front connection shaft (6) coaxially with the connection shafts, respectively, and the rollers (4), (5) is movably disposed on the guide rail (8), the upper end of the rear connecting shaft (2) and the tip of the piston rod of the air cylinder (1) are connected to the front connecting shaft (6). A connecting plate (7) for connecting the slide door (9) is rotatably connected. Preparative vehicle out sliding door device according to claim.   The rear roller (4) of the rear connecting shaft (2) is disposed so as to be positioned on the straight portion of the guide rail (8) when the sliding door (9) is opened or closed. The vehicle outslide door device according to claim 1.   3. The vehicular out according to claim 1 or 2, wherein the straight portion of the guide rail (8) is arranged directly below the air cylinder (1) and parallel to the direction in which the piston of the air cylinder (1) extends. Sliding door device.

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