JP3262567B2 - Vehicle door opening and closing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for opening and closing a door for a vehicle, and more particularly to an improvement in a mechanism for opening and closing a door that slides along a side surface of a body, such as a one-box car door.

[0002]

2. Description of the Related Art Conventionally, opening and closing of a door of an automobile configured to open and close a rear entrance of a side surface of a body by sliding substantially parallel to a side surface of the body like a door on a rear side of a one-box car. As a mechanism, for example, FIG.
There is something like that shown in (b).

The rear side door 2 of the one-box car 1 is located behind the driver's seat 3, and an opening / closing mechanism 4 allows the doorway 5 to be opened and closed. This opening / closing mechanism 4
Is a chain installed on the step 6 of the entrance 5 and stretched endlessly in the front-rear direction, a gear box 7 for transmitting a driving force to a sprocket for stretching the chain, and the gear box 7 is driven. It is composed of a motor and the like.
A groove-shaped guide rail 8 extending rearward from the entrance 5 is formed on the side surface of the body, and a guided roller at the tip of a guide arm 9 protruding from the door 2 is rotatably engaged in the guide rail 8. . However, in the above-mentioned conventional opening / closing mechanism, the chain and gear box constituting the opening / closing mechanism 4 project from the upper surface of the step 6, so that it is difficult to ensure the safety at the time of ascending and descending and the stability as a scaffold. It has become.

In view of such circumstances, it has been proposed to dispose an opening / closing mechanism including a motor on the lower surface of the step. As a result, a situation in which the opening / closing mechanism is damaged easily occurs.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle door opening / closing mechanism which eliminates various problems caused by disposing a door opening / closing mechanism above or below a step of an entrance.

[0006]

According to the present invention, there is provided an opening / closing mechanism for opening and closing an entrance formed in a body by moving substantially in parallel along a side surface of the body. The opening / closing mechanism is disposed in a hollow portion in the inside, and the opening / closing mechanism is stretched endlessly along at least the opening / closing direction of the door and a wire partially fixed to the door, and the wire is connected to the output shaft. It is characterized by comprising a motor that is wound and driven, and a pulley that stretches the wire in an endless manner.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the preferred embodiments shown in the accompanying drawings.

FIGS. 1 and 2 are a horizontal sectional view and a vertical sectional view, respectively, showing the structure of an embodiment of the present invention. The guide rail 8 of the one-box car shown in FIGS. 3 (a) and 3 (b) is formed. The opening and closing mechanism is arranged inside the thickness of the body side wall. In the description of the present embodiment, FIG.
(b) is also referred to, the same portions are denoted by the same reference numerals, and duplicate description will be omitted.

Doorway 5 on the side wall of the body of the one-box car
A groove-shaped upper guide rail 8 extending rearward is formed on the outer surface (intermediate height position) of the body 20 located rearward of the body 20 (exposed arrangement).
Axis extending from an intermediate height position of the door 2 while being location) 21
The roller 22 is rotatably supported by the upper guide rail 8. A roller 25 rotatably supported by a shaft 24 extending from a lower portion of the door 2 is provided on the lower guide rail 6 on the step.
a. The configuration in which the door 2 is guided by the guide rails 8 and 6a and moves in the front-rear direction substantially in parallel with the side surface of the body to open and close the entrance is the same as the conventional example.

In this embodiment, as shown in FIG.
A motor constituting the opening / closing mechanism 27 in a hollow portion having a thickness of 0
30, at least two pulleys 31, 32, wire 40
Structure part disposed, and to drive the door 2 by the opening and closing mechanism 27 is different from the conventional example.

That is, the opening / closing mechanism 27 includes a support member 29 provided at an appropriate position in the space 20 a inside the upper guide rail 8.
a, small motors 3 mounted on 29b, 29c respectively
0, pulleys 31 and 32, wire insertion holes 33 and 34 provided in the inner wall of the groove forming the guide rail 8, and insertion holes 3
Auxiliary pulleys 35 arranged as needed near 3, 34;
And at least one round around the output shaft outer periphery of the motor 30 and is stretched endlessly by each of the pulleys 31, 32, 35 , and 36 , and further partially at an appropriate position of the door (the shaft 21 in this embodiment). And a wire 40 fixed thereto.
When the output shaft of the motor 30 rotates forward and backward, the wire
40 runs in the door opening and closing direction. Of the movement path of the wire 40
Some are located in the space 20a, while others are guides.
The inside of the groove constituting the rail 8 (in FIG.
It is exposed in the recess indicated by the lead line).

As the support members 29a, 29b, 29c, existing ribs or the like may be used, or may be newly provided as necessary. Further, in order to apply sufficient tension to the wire 40, it is preferable to provide a tension roller 41 spring-biased toward the wire at an appropriate position within the body thickness.

When the door 2 is to be opened, an operation switch (reference numeral 38 in FIG. 3B) provided in the driver's seat is operated to rotate the motor 30 forward to drive the wire 40 in the direction of arrow A. Thereby, the door 2 fixed to the wire 40 is moved in the opening direction to open the entrance 5. Conversely, when closing the door 2, the operation switch is operated to rotate the motor 30 in the reverse direction to drive the wire in the direction of arrow B, thereby moving the door in the closing direction and closing the doorway 5.

The reason why a wire is used as a driving force transmitting means without using a chain or a timing belt in this embodiment is that it is convenient when the door 2 is manually opened and closed. That is, when the wire is wound around the pulley or the output shaft of the motor, the wire is reliably driven in two directions by the motor in the automatic opening and closing mode by the motor, while the door is opened and closed in the manual opening and closing mode. This is because, at times, the wire slips on the outer peripheral surface of the motor output shaft to facilitate manual opening and closing.

Normally, the side wall of the body has a thickness of about 80 to 90 mm. However, if the thickness of the body is not sufficient to accommodate the motor or the like, a part of the motor may protrude toward the passenger compartment. However, in this case, the outer surface of the motor protruding toward the passenger compartment may be covered with an interior cover or the like.

The layout of the motors and the pulleys are not limited to those shown in the drawings, but may be changed arbitrarily within a range that does not impair the opening and closing function of the door. For example, in the above embodiment, the wire is stretched horizontally in the lateral direction of the guide rail 8 without terminal. However, the wire may be stretched above or below the guide rail.

In any case, in the present invention, an opening / closing mechanism is provided inside the body thickness along a guide rail on the side of the body provided at a position sufficiently higher than the step 6, for example, at an intermediate position at the height of the door. This makes it possible to eliminate various inconveniences caused by the opening and closing mechanism being concentrated near the step, and any similar technology having such a function is included in the scope of the present invention.

[0018]

As described above, according to the present invention, a door is automatically opened and closed by providing an opening / closing mechanism comprising an endless wire and a motor inside a guide rail provided sufficiently above the step. Therefore, it is possible to eliminate various disadvantages (inconvenience at the time of getting on and off due to the protrusion on the step, and damage due to the protrusion on the road) of the related art in which the opening and closing mechanism is provided on the upper surface or the lower surface of the step.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a configuration of a preferred embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

3 (a) and 3 (b) are a front view and a plan view showing a configuration of a conventional one-box car door.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... One box car, 2 ... Door, 3 ... Driver seat, 4 ... Opening / closing mechanism, 5 ... Doorway, 6 ... Step, 6a ... Guide rail, 7 ... Gear box,
8 Upper guide rail, 9 Guide arm, 2
0 ... body, 21 ... axis, 24 ... axis, 25
..Roller, 27 opening / closing mechanism, 29a, 29b, 2
9c: Support member, 30: Small motor, 31, 3
2 ... pulley, 33, 34 ... wire insertion hole, 3
5, 36: auxiliary pulley, 40: wire

Claims (1)

(57) [Claims] 1. A and the vehicle door for opening and closing a doorway formed in the body side by moving substantially in parallel along the vehicle body side, the intermediate height position of the output inlet behind the body side
One groove-shaped guide that is exposed and placed in the front and rear direction
A rail and an intermediate position between the vehicle door and the rail.
In a vehicle including a roller that rolls in the front-rear direction along the id rail and an opening and closing mechanism that opens and closes the vehicle door , at least a part of the opening and closing mechanism includes the guide rail.
Inside, above or below the groove to be formed
The opening and closing mechanism is disposed at least in the opening and closing direction of the vehicle door.
Along the end of the vehicle,
Driven with the fixed wire and the wire wound around the output shaft
To move the wire in the door opening and closing direction.
A motor disposed in a hollow portion of the body, and the wire;
A plurality of pulleys extending in an endless manner, wherein the motor and at least two of the pulleys are
The wire is provided in a groove that constitutes the guide rail.
Arranged from the hollow part of the body to the groove through the insertion hole
The wire portion positioned in the groove is turned to the vehicle door.
An opening / closing mechanism for a vehicle door, which is fixed to the vehicle.