JPS5814327B2 - Vehicle sliding door opening/closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing device for a sliding door for a vehicle.

An object of the present invention is to provide a smooth opening for easy entry and exit when the sliding door is opened, and to improve the appearance.

Conventionally, the opening/closing device of a general sliding door was flush with the body surface when closed, and the opening/closing operation needed to move back and forth parallel to the body surface, so it moved outward from the closed position and protruded from the body surface. It was supported by parallel links, curved parallel links, etc. so that it could move parallel to the body surface, and guide rails were provided on the outer surface of the body.

In this case, since the guide rail protrudes the door outward from the body and moves parallel to the body, the guide rail is exposed on the outer surface of the body and degrades the appearance of the vehicle when the door is closed.

Furthermore, since the link mechanism is distributed in various parts of the door and the body, the structure is complicated, and the number of parts is large, resulting in a large number of man-hours for assembling the vehicle.

In addition, the large number of parts and the distributed arrangement of the mechanisms occupied extra space.

The present invention provides an opening/closing device that eliminates the above-mentioned conventional problems.In particular, conventionally, vehicles with sliding doors were limited to van-type vehicles, but by adopting the present invention, it can also be applied to passenger cars. It has the following characteristics.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, 17 is a sliding door (hereinafter simply referred to as a door), and a guide rail 13 is provided inside the door 17 in the front-rear direction.

The slide arm A provided on the body side is connected to the guide rail 13 to open and close the door 17.

Details of the slide arm mechanism A shown in FIG. 1 will be explained with reference to FIGS. 2 to 4.

In FIG. 2, reference numeral 1 denotes a main arm support, which is fixed to the inner surface of the body of the closing portion of the door 17.

The rear end of a main arm 2 is rotatably attached to the main arm support 1 by a pin 3.

Further, the tip of the main arm 2 is pivotally connected by a pin 5 to a support member 4 that is slidably mounted within a guide rail 13 that is attached to the inside of the door 17 in the front-rear direction.

Furthermore, 6 is a sub-arm support, which is also fixed to the body.

A first sub-arm 7 is pivotally connected to the sub-arm support 6 by a pin 8, and a second sub-arm 9 is connected to the tip of the first sub-arm 7 by a pin 10 so as to be flexible and extensible.

The tip of the second sub-arm 9 is pivotally connected to the support member 4 by a pin 12 at a required distance from the pivot point of the main arm 2 by the pin 5.

The bending/extending connection points of the first and second sub-arms 7 and 9 by the pins 10 are slidably engaged with the guide slots 11 provided in the main arm 2 via the pins 10. The pin 10 slides in the guide elongated hole 11 based on the rotational movement, and thereby the first and second sub-arms 7, 9
is C-shaped to perform bending, extending, and turning movements.

Note that the guide slot 11 can also be curved.

In addition, in this embodiment, the pin 10 is restrained at the tip of the guide slot 11, so that it cannot be released from the restraint unless a force exceeding a certain level is applied.
A round elastic suppressing piece 18 is provided.

In this embodiment, the support member 4, which is slidably attached to the guide rail 13, has guide rails 1 at its upper and lower parts.
A guide roller 14 that comes into contact with 3 and regulates the horizontal direction, and a guide roller 15 that regulates the vertical direction are provided on the front surface.

Further, the front and rear ends of the support member 4 are provided with stoppers 16a and 16b that come into contact with cushioning material provided on the end face of the guide rail 13 (not shown) and restrict the front and rear sliding ends of the door 17.

Further, a locking piece 19 is fixedly installed at the tip of the main arm 2 and stands inverted integrally with the main arm 2, and the locking piece 19 is attached to the support member 4 and the guide rail 13 at a position corresponding to the locking piece 19. Openings 20 and 21 are formed for the guide rail to appear and retract, and a stopper 22 with which the locking piece 19 engages is formed at the end of the opening 21 of the guide rail.

Since the present invention has the above-described structure, the door 17 is opened by the main arm 2 and the first and second sub-arms 7 and 9 via the guide rail 13 provided inside the door 17 and the support member 4. The supporting weight is shared and supported by each other.

Further, the first and second sub-arms 7 and 9 have a function of ensuring the parallel posture of the door 17 in cooperation with the main arm 2.

Therefore, to explain the opening/closing operation of the door 17, the state shown by the solid line in FIGS. 2 and 3 is the state in which the door 17 is protruded outward from the body surface, but when the door 17 is in the locked state, the main arm 2 is Turn to the left as shown in the imaginary line in Figure 3,
The door 17 is pulled in so that it is flush with the body.

In this state, the pin 10 slides to the lower part of the guide elongated hole 11 as shown in the figure, and the first and second sub-arms 7 and 9 are attached to the pin 10.
The interior angle of the connection point due to is expanding.

In addition, a locking piece 1 fixed at the tip of the main arm 2
9 protrudes from the opening 20.21 and engages with a stopper 22 at the end of the opening 21 of the guide rail 13 to restrain movement of the door 17.

To open the door 17 from the closed state, when the door lock is released and the door 17 is pushed outward from inside the vehicle or pulled from outside the vehicle, the main arm 2 pivots in the upright direction, and the length of the main arm 2 increases. The door 17 is pulled out with a stroke corresponding to the stroke.

As the main arm 2 pivots, the pins 10 of the first and second sub-arms 7 and 9 slide through the guide elongated holes 11, and bend while reducing the inner angles to follow the pivoting of the main arm 2.

Therefore, the door 17 maintains a parallel posture and protrudes out of the body surface.

During the pivoting movement of the main arm 2 from the closed state to the time when the door 17 protrudes to the outside of the body, the locking piece 19 fixed at the tip of the main arm 2 engages with the stopper 22. Although the movement of the door 17 is reliably restrained, when the door 17 reaches the upright state with the main arm 2 protruding outward from the body, the locking piece 19 is retracted from the openings 20 and 21 and turns sideways, causing the locking piece 19 to become sideways and engage the stopper 22. The engagement is released and the door 17 is free to move.

Further, when the main arm 2 stands up, the pin 10 is restrained by the elastic pressing piece 18 at the tip of the guide elongated hole 11.
The pivoting movement of the main arm 2 is restrained, the door 17 is maintained in its protruding state, and swinging toward the body due to wind pressure or the like is prevented.

In other words, the main arm 2 is placed in a locked state.

Therefore, since the support member 4 is also in a stopped state, only the door 17 is allowed to move in the longitudinal direction with respect to the vehicle body along the guide rail 13, and the door 17 has a slight gap on the outside of the body surface. The door can be opened and closed by moving in parallel.

At the end of the left and right movement of the door 17, stoppers 16a and 16b come into contact with a cushioning material (not shown) to regulate the movement.

Note that the main arm 2, in which the pin 10 is locked in the notch hole 18, is unlocked by sliding it toward the front of the vehicle body when closing the door 17, and the cushioning material at the end of the guide rail 13 comes into contact with the stopper 16b, supporting the main arm 2. It is automatically released when a turning force is applied to the main arm 2 in the left direction in FIG. 2 via the member 4, and is inevitably unlocked when the door 17 is closed.

As described above, according to the device of the present invention, only the door can slide in the direction parallel to the body surface with respect to the main arm that stands up in the horizontal direction, so the door fully opens the entrance and exit, making it easy to get in and out. In addition, the guide rail for sliding the door in a parallel direction is provided inside the door, so it is not attached to the outside of the body and exposed as in the past, improving the appearance of the vehicle and improving the van-type design. It can be used not only for vehicles but also for two-door passenger cars.

Furthermore, since there is a main arm and a bending/extending sub-arm that follows the main arm and supports the door in a parallel position via a support member, the supporting load of the door is shared between the main arm and the sub-arm. As a result, there is no need for the door to lower, and there is no need to form a special reinforcing structure on the body.

Therefore, it is possible to reduce the weight of the vehicle body and reduce the number of man-hours required for body assembly.

In addition, since the support point of the sub-arm to the body utilizes the gap between the body and the door, the main arm can be placed as close to the body opening as possible, making it possible to improve the ease of getting in and out of the vehicle and downsize the main arm. It has many advantages.

[Brief explanation of drawings]

Fig. 1 is a side view of the door section showing an outline of the mounting structure of the device of the present invention, Fig. 2 is a perspective view showing the structure of the device of the present invention, Fig. 3 is a horizontal sectional view of Fig. 2, and Fig. 4 is a It is a sectional view of a door support part. 1...- Main arm support, 2...
Main arm, 3... pin, 4... support member, 5... pin, 6... sub arm support, 7... first Sub-arm, 8...
...Pin, 9...Second sub-arm, 10
... Pin, 11 ... Guide slot, 12.
... Bin, 13 ... Guide rail, 16
a, 16b... Stopper, 17... Sliding door, 18... Elastic pressing piece, 19...
... Locking piece, 20, 21 ... Opening, 22.
...Stoppa.

Claims (1)

[Claims] 1. A guide rail is provided inside the sliding door in the front-rear direction, and a support member is slidably attached to the guide rail, and a main arm support and a sub-arm support are fixedly installed on the body side. The main arm support and the support member are pivotally connected by a main arm, and the sub-arm support and the support member are further pivotally connected by a first sub-arm and a second sub-arm, which are flexiblely connected to the support member by a pivot pin. An opening/closing device for a sliding door for a vehicle, characterized in that a pivot pin of a bending/extending connection portion of the first and second sub-arms is slidably engaged with a guide elongated hole provided in the main arm. 2. Claim 1, in which a locking piece is attached to the tip of the main arm to restrict the front and back movement of the door by engaging with a stopper provided on the door side only from the closed position of the door until it projects outside the body. The vehicle sliding door opening/closing device described in Section 1. 3. In order to maintain the upright state of the main arm with the door protruding outward from the body at the end of the long guide hole provided in the main arm, the pivot pins of the bending/extending joints of the first and second sub-arms are elastically attached. An opening/closing device for a sliding door for a vehicle according to claim 1, which is provided with an elastic pressing piece for restraining.