JPH0620666Y2 - Vehicle slide door guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device for guiding opening and closing of a slide door in a vehicle such as an automobile.

[Conventional technology]

The sliding door of an automobile moves toward the outer side of the vehicle body once at the beginning of opening, then moves rearward in parallel with the side surface of the vehicle body, and when closing, the reverse of the above case. Many of them follow the path.

As a conventional guide device for guiding the slide door along such a movement locus, for example, the actual opening 57-454
There is one disclosed in Japanese Patent No. 24.

In this conventional device, at least one pair of pivot arms that are pivotally attached to a vehicle body with an axis directed in the up-down direction and are parallel to each other connect a connecting member that is substantially parallel to the surface of the vehicle body. Thus, a parallelogram link mechanism is constituted by a part of the vehicle body, both rotating arms, and a connecting member, and the supporting head fixed to the upper end of the connecting member is attached to a substantially horizontal guide rail fixed to the slide door. By slidably fitting, the sliding door is supported so that it can slide along the surface of the vehicle body and can move laterally.

However, with such a configuration alone, the rotating arm can freely rotate regardless of the position of the slide door, and therefore, for example, when the slide door is open, the rotating arm faces the inside of the vehicle. There is a possibility that the vehicle may be rotated and the sliding door may come into contact with the side surface of the vehicle body and damage the vehicle body.

Therefore, in the conventional device described above, the sliding door
A striker is provided on the inner surface of the
An engaging portion is provided at the tip of the arm, and the connecting member is
Engage with striker to slide against support head
A) A sliding prevention part that prevents the sliding of the
To prevent rotation of the rotating arm with respect to the connecting member
And the sliding prevention portion is engaged with the striker.
When the rotation prevention part is disengaged from the engagement part,
When engaged with the engaging part, the slide prevention part
Switching lever (control section)
Material), so that the rotation of the rotation arm and the support head
The sliding of the sliding door with respect to
The ride door moves along the desired trajectory as described above.
I am trying to get it.

[Problems to be solved by the invention]

In the conventional device as described above, since the striker is projected from the inner surface of the slide door, when the slide door is closed, the striker obstructs the interior space of the vehicle, or when the slide door is opened, the striker contacts the outer surface of the vehicle body. The amount of lateral movement of the slide door must be increased so that the slide door does not come into contact with it, which makes the rotating arm and the like longer, which increases the size and weight of the entire device and supports the slide door. There are problems such as instability.

An object of the present invention is to provide a vehicle slide door guide device that solves such problems.

[Means for solving problems]

In the guide device for a sliding door for a vehicle of the present invention,
By providing a striker on the inner surface of the guide rail, providing a switching lever in the support head, and directly connecting the support head to the tip of the rotating arm, as compared to the above-described conventional device, The problem of the conventional device as described above is solved.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, (1) is a vehicle body of a truck, and openings (4) for getting on and off are formed on both sides of a driver's cab (2) in the vehicle body so as to be opened and closed by slide doors (3). Has been done.

The sliding door (3) is a guide device shown in detail from FIG. 2 onward.
It is supported by (5) and is guided so as to move along a locus to be described later when opening and closing.

(6) is a base member that is fixed to the lower part of the rear edge of the opening (4) in the vehicle body (1) and forms a part of the vehicle body (1). Pair of rotating arms (7) (8)
The base ends of the are respectively pivoted with axes (9) and (10) oriented substantially vertically.

At the tip of each rotating arm (7) (8), the front part and the middle part of the support head (11), which is substantially parallel to the side surface of the vehicle body (1), are provided with axes (12) (13 ) Are connected to each other.

The base member (6), the two rotating arms (7) and (8), and the support head (11) form a parallelogram link mechanism (A), which allows the support head (11) to move. , The side surface of the vehicle body (1) is always kept parallel to the vehicle body (1) so that the vehicle body can swing outward.

At the upper and lower edges of the front and rear ends of the support head (11), guide rollers (14), (14), (15) and (15), each having a substantially rhombic shape, have horizontal shafts (16) that face the left and right directions. Each is pivoted.

A support plate (17) is provided between the guide rollers (15) (15) on the lower surface of the support head (11) in the front-back direction 1 with the left-right direction provided in the support plate (17) as the major axis direction. It is fixed by a bolt (19) inserted in a pair of long holes (18) so that the position can be adjusted in the left-right direction.On the lower surface of this support plate (17), a horizontal roller (20) is attached.
Is pivotally supported by a shaft (21) directed in the up-down direction so as to slightly project outward from the outer surface of the support head (11).

A guide rail (22) is fixed to the inner surface of the slide door (3), the guide rail (22) having a vertical cross-section that opens inward.

V-shaped grooves (23) and (24) are formed on the lower surface of the upper wall (22a) and the upper surface of the bottom wall (22b) of the guide rail (22), and there are V-shaped liners (25). ) (26) are attached respectively.

In the support head (11), the upper guide roller (14) has a liner (2
5), the lower guide roller (15) rolls on the liner (26), and the horizontal roller (20) rolls along the inner surface of the side wall (22c) of the guide rail (22). (twenty two)
Is fitted to.

Thus, the sliding door (3) is supported so as to be slidable along the side surface of the vehicle body (1) and capable of swinging outward.

The inner surface of the side wall (22c) at the front end of the guide rail (22) contacts the front end of the support head (11) when the slide door (3) reaches the rear end position with respect to the support head (11). The slide door (3) to stop the rearward movement of the slide door (3).
7) and when reaching the rear end position of the slide door (3), the planar shape formed on the outer surface of the support head (11) is a V-shaped recess.
A leaf spring that retains an appropriate restraining force when the chevron bent portion (29a) formed in the middle portion is engaged with (28) and the sliding door (3) tries to move forward from the rear end position. (29) are fixed together with bolts (30).

On the inner surface of the side wall (22c) at the rear end of the guide rail (22), when the slide door (3) reaches the front end position with respect to the support head (11), the rear end of the support head (11) is provided. A stopper (31), which comes into contact with the support head (11) and prevents the slide door (3) from moving further forward with respect to the support head (11), is fixed by a bolt (32).

Side wall (22) slightly forward of the rear end of the guide rail (22)
A pin-shaped striker (33) is fixed to the inner surface of c) so as to project inward.

A notch (34) is formed in an intermediate portion of the support head (11) so that the striker (33) can enter when the slide door (3) advances to the above-mentioned front end position.

Reference numeral (35) is a switching lever pivotally mounted in the support head (11) with a shaft (36) directed in the up-and-down direction, and is a first lever that projects into the movement locus of the striker (33) through the notch (34). Arm (3
5a), the second arm portion (35b) protruding rearward at an included angle of about 90 ° with the first arm portion (35a), and the relationship of about 180 ° with the first arm portion (35a) Above the second arm portion (35b) and the third arm portion (35c) protruding inward.
A fourth arm portion (35d) having the same shape as that of b) and pointing in the same direction is provided.

Each end of the tension spring (38) is locked to the third arm portion (35c) and the pin (37) projectingly provided on the inner surface of the support head (11) in front of the third arm portion (35c). 38) Switching lever
(35) is always urged counterclockwise in FIG.

A fan-shaped cam portion (39) having an opening angle of approximately 90 ° is continuously provided on the peripheral edge around the shaft (13) at the tip of the rear rotating arm (8). Switch lever (35) on the outer circumference of
The fourth arm portion (35d) of the second arm portion (35d) may be slidably contacted, or the tip of the fourth arm portion (35d) may be engaged with the engaging portion (40) formed by the front edge of the cam portion (39). Has become.

As shown by the phantom line in FIG. 3, the switching lever (35) has both pivot arms (7) and (8) facing the front of the vehicle body (1), and the slide door (3) in the fully closed position. Both rotating arms from the position
(7) (8) pivots outwards and rear pivot arm (8)
However, until the state immediately before contacting the stopper (41) provided on the base member (6), the tip end of the fourth arm portion (35d) remains at the cam portion (3
9) is in contact with the outer periphery of the first arm portion (35a) and the second arm portion (35b)
By sandwiching the striker (33) from the front and back, the striker (33) and the slide door (3) integrally formed with the striker (33) are located at a slide prevention position that prevents the slide door (3) from sliding in the front-rear direction, and the rearward rotation is prevented. When the arm (8) reaches the position immediately before contacting the stopper (41), as shown by the solid line in FIG. 3, the fourth arm portion (35d)
Engages with the engaging portion (40) to prevent clockwise rotation of the rotating arm (8) with respect to the support head (11), and the second arm portion (35b) moves the striker (33). It deviates inward from the locus and is positioned at a rotation blocking position that allows the striker (33) and the entire slide door (3) to slide rearward.

Thus, in this embodiment, the first arm portion (35a) and the second arm portion (35b) of the switching lever (35) are engaged with the striker (33) to slide the door to the support head (11). A sliding prevention part (B) for preventing the sliding of (3) is formed, and the fourth arm part (35d) engages with the engagement part (40) to rotate with respect to the support head (11). A rotation blocking portion (C) for blocking the rotation of the arms (7) and (8) is formed.

Next, the operation of this embodiment will be described.

As shown by the phantom line in FIG. 3, when the slide door (3) is in the fully closed position, both rotations (7) and (8) face forward and the switching lever (35) slides. Located in the blocking position, the striker (33) is connected to the first arm (35a) of the switching lever (35) and the second arm (35a).
It is pinched and constrained by the arm (35b),
The sliding door (3) is locked with respect to the support head (11).

When the door lock (not shown) is released from this state and the slide door (3) is opened, the rotating arms (7) and (8) move counterclockwise in FIG. 3 with respect to the vehicle body (1). Rotate toward.

At this time, since the switching lever (35) is maintained at the slide preventing position, the slide door (3) does not slide in the front-back direction with respect to the support head (11).

When both rotating arms (7) and (8) rotate to a direction substantially orthogonal to the side surface of the vehicle body (1), the cam portion (39) causes the switching lever (3) to move.
It comes off from the tip of the 4th arm part (35d) of 5), and the switching lever (35)
Is rotated to the rotation blocking position by the urging force of the tension spring (38).

Then, the tip end of the fourth arm portion (35d) of the switching lever (35) engages with the engaging portion (40) to prevent the turning arm (8) from returning clockwise in FIG. And the second arm (35
d) The striker (33) deviates from the trajectory of the striker (33), and the striker (33)
Also, sliding of the sliding door (3) to the rear is allowed.

Immediately after the switching lever (35) is switched to the rotation blocking position side, the rotation arm (8) contacts the stopper (41), and the third arm
Further rotation in the counterclockwise direction in the figure is also prevented, so that both rotation arms (7), (8) and the support head (11) are completely restrained at the position shown by the solid line in FIG. .

From this state, push the slide door (3) backward, and the guide rollers (14) (15) and horizontal roller (20) will move to the guide rail (2
By rolling relatively along the inner surface of (2), the guide rail (22) and the slide door (3) are directed rearward in parallel with the side surface of the vehicle body (1) with respect to the support head (11). Can be moved smoothly.

Immediately before the rotation arm (B) contacts the stopper (41), the switching lever (35) is switched to the rotation blocking position side, and the restraint of the striker (33) is released.
Due to its inertia, (3) smoothly shifts from the outward swinging movement of the vehicle body (1) to the backward linear movement.

When the sliding door (3) reaches the end position, the stopper (27)
Comes into contact with the front end of the support head (11), and the chevron bent portion (29a) of the leaf spring (29) engages with the concave portion (28), so that the slide door (3) stops at the fully open position and has a proper degree. It is held by elastic restraining force.

To close the sliding door (3) from the fully open position to the fully closed position, the sliding door (3) is pulled forward with a force stronger than the restraining force of the leaf spring (29).

Then, the mountain-shaped bent portion (29a) of the leaf spring (29) comes off from the recessed portion (28), the guide rail (22) is guided by the guide rollers (14) (15) and the horizontal roller (20), and the support head ( Sliding forward against 11).

Immediately before the guide rail (22) reaches the limit position, the striker (33) contacts the first arm portion (35) of the switching lever (35), and the switching lever (35) causes the tension spring (38) to move. The striker (33) is rotated against the biasing force of the
Is the first arm portion (35a) and the second arm portion (35b) of the switching lever (35).
Sandwiched between and.

Almost at the same time or shortly thereafter, when the stopper (31) comes into contact with the rear end of the support head (11), the inertial force of the slide door (3) acts to push the support head (11) forward. , The rotating arms (7) and (8) try to rotate clockwise in FIG.

At this time, the switching lever (35) has already been rotated to the sliding prevention position as described above, and the fourth arm portion (35
Since d) is disengaged from the engaging portion (40), the rotation of both rotating arms (7) and (8) at this time is allowed.

When the rotating arm (8) slightly rotates clockwise from the position shown by the solid line in FIG. 3, the fourth arm portion (35) of the switching lever (35) is moved.
The cam portion (39) enters between the tip of d) and the shaft (13), and thereafter, the tip of the fourth arm portion (35d) abuts on the outer circumference of the cam portion (39) to switch. The return rotation of the lever (35) to the rotation blocking position side is blocked, and the striker (33) moves to the first arm (3
The slide door (3) is restrained from being relatively sandwiched between the support head (11) while being held between the support arm (5a) and the second arm portion (35d).

In this way, the sliding door (3) smoothly shifts from the forward linear motion to the swinging motion toward the side surface of the vehicle body (1), and when the fully closed position is reached, the door lock is engaged, Held in that position.

At this time, both the rotating arms (7) and (8), the switching lever (35) and the like are maintained in the original state.

Although the turning arm and the supporting head are provided on the vehicle body side and the guide rail is provided on the sliding door side in the above-described embodiment, the mounting positional relationship between them may be reversed.

[Effect of device]

As is apparent from the above, in the present invention, since the striker is provided in the guide rail, when the slide door is closed, the striker does not project into the vehicle, and the striker reduces the vehicle interior space. There is an advantage that it can be lost.

Further, by providing the striker integrally with the guide rail, there is an advantage that the position adjustment of the striker with respect to the switching lever is not bothered as in the conventional case where the striker is attached to the slide door later.

Further, in the present invention, the striker is provided in the guide rail, the switching lever is provided in the support head that relatively slides in the guide rail, and the tip of the rotating arm is directly supported by the support head. With the structure in which the pivot arm, the switching lever and the striker are all engaged and disengaged within the guide rail, the lateral movement of the slide door can be made significantly smaller than the conventional one. ,
It is possible to reduce the size and weight of the entire device and improve the stability of support of the slide door.

That is, according to the present invention, the slide door can be opened and closed in a state of being extremely close to the surface of the vehicle body.

[Brief description of drawings]

FIG. 1 is a side view showing a front portion of a truck equipped with the device of the present invention, FIG. 2 is an exploded perspective view of an embodiment of the present invention seen from the inside of the vehicle, and FIG. A cross-sectional plan view showing the opened state with a solid line and the closed state with an imaginary line, FIG. 4 is a vertical sectional side view taken along the line XX of FIG. 3, and FIG. It is a vertical side view which follows the YY line of FIG. (A) Parallelogram link mechanism (B) Sliding prevention part, (C) Rotation prevention part (1) Vehicle body, (3) Sliding door (5) Guide device, (6) Base member (7) (8) Rotating arm, (11) Support head (14) (15) Guide roller, (20) Horizontal roller (22) Guide rail, (33) Striker (35) Switching lever, (39) Cam part (40) Engagement part

Claims (1)

[Scope of utility model registration request] 1. A horizontal guide rail is provided on either one of a vehicle body and a slide door, and at least one pair of rotating arms parallel to each other is pivotally attached to the other by an axis extending vertically. A parallelogram linkage mechanism is formed by connecting a support head, which is substantially parallel to the surface of the vehicle body, to the tip of the rotating arm, and the support head is slidably fitted to the guide rail. Thus, the slide door is supported so as to be slidable along the surface of the vehicle body and capable of moving laterally, and a striker is provided on the inner surface of the guide rail. An engaging portion is provided at the tip portion, and a slide preventing portion that engages with the striker in the support head to prevent sliding of the slide door with respect to the support head is engaged with the engaging portion. On the supporting head A rotation blocking portion that blocks the rotation of the rotating arm, and when the sliding blocking portion is engaged with the striker, the rotation blocking portion disengages from the engaging portion and, conversely, the rotation blocking portion. A guide device for a sliding door for a vehicle, characterized in that a switching lever is provided so that the sliding prevention portion is disengaged from the striker when is engaged with the engaging portion.