JPH06171367A - Sliding door opening/closing device for vehicle - Google Patents

Abstract

PURPOSE:To obtain powerful opening/closing operating force and secure sufficient opening/closing strokes. CONSTITUTION:A sliding door opening/closing device for a vehicle is provided with the stator 1 of a linear motor provided horizontally in a sliding door S, and a movable element 2 connected to the tip of an arm 6, protruding from a vehicle body, movably within its length in the horizontal direction so as to move relatively along the stator 1. The sliding door opening/closing device is also provided with engaging members 3A, 3B provided at both moving direction end parts 21, 22 on the movable element 2 so as to be engaged alternatively with the tip of the arm 6; an engagement release rod 4 operated to release the engagement between the tip of the arm 6 and the engaging member 3A or 3B positioned on the far side from the stator end part 11 or 12 when the movable element 2 reaches the end part 11 or 12 of the stator 1; and a control device for moving the movable element 2 in the reverse direction after moving the movable element in the normal direction and making the movable element reach the stator end part 11 or 12, then engaging the engaging member 3A or 3B, positioned on the closer side to the stator end part 11 or 12, with the tip of the arm 6 and moving the movable element 2 again in the normal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for automatically opening / closing a sliding door of a vehicle.

[0002]

2. Description of the Related Art Conventionally, an opening / closing device of this kind has been proposed, in which a drive motor provided at an opening edge of a vehicle body is used to hang a wire to move and open / close a sliding door in a horizontal direction. No. 61-109887, etc.), they have a relatively complicated structure and require an installation space.

Therefore, for example, in Japanese Utility Model Laid-Open No. 1-79781, a linear motor is used to directly horizontally move a sliding door, and the door can be opened and closed with a compact and simple structure. .

[0004]

However, as a problem when this linear motor is used, in order to obtain a strong opening / closing operation force, the mover that relatively moves on the long stator is lengthened in the moving direction. However, if a sufficient electromagnetic force is received from the stator coil, the mover portion becomes a dead space and a sufficient opening / closing stroke cannot be obtained.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vehicle slide door opening / closing device which can solve such problems and can obtain a strong opening / closing operation force and a sufficient opening / closing stroke.

[0006]

To explain the structure of the present invention, a long stator 1 of a linear motor fixedly arranged horizontally on a slide door S and an end of an arm 6 projecting from a vehicle body are connected. , The connection point between the movable element 2 that relatively moves along the stator 1 and the arm 6 of the movable element 2 is selectively switched to either one of both ends in the moving direction of the movable element 2. Connection point switching means 3A, 3B,
4 and 5 are provided.

[0007]

When the mover 2 is relatively moved in the forward direction,
The stator 1 and the slide door S are moved in opposite directions and opened / closed. In this state, after the sliding door S reaches the open end or the closed end, the connecting point switching means 3A, 3
When the arm 6 connected to the rear end portion in the moving direction of the mover 2 by B, 4, 5 is switched to the front end portion in the moving direction, the slide door S is not opened further because the mover 2 is moved by that length. It can move in the closing direction, so it can be opened and closed with a large stroke.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a sliding door S for opening and closing a side opening of a vehicle body is provided with a latch 71, which will be described in detail later, at a central position of a rear edge thereof, and engages with a striker 72 provided at an edge of a body opening. ing. The latch 71 is operated by an attached motor 73, and the motor 73 is drive-controlled by the control device 5 housed in the door panel.

At the lower edge of the slide door S, a stator 1 of the linear motor is horizontally extended along the lower edge of the slide door S, and a movable element 2 is provided so as to be movable relative to the stator 1.
The mover 2 is fixed to the tip of an arm 6 protruding from the lower edge of the vehicle body.

A wiring 52 extends from an operation switch 51 provided in a console box or the like in the driver's seat, and extends to a control device 5 in the slide door S via a movable rack (not shown).

2 and 3 show details of the stator 1 and the mover 2. The stator 1 is a long plate-shaped body extending in the left-right direction, and a large number of coils 13 are provided on the plate surface at regular intervals in the longitudinal direction. The mover 2 is formed into a flat rectangular tube shape, and the stator 1 is relatively movably inserted through guide rollers 24 arranged at a plurality of positions in the tube (FIG. 4).

Magnets 23A and 2A are provided on the inner walls of the mover 2 facing each other with the coil 13 installation portion of the stator 1 interposed therebetween.
3B is provided, and when the energization of each coil 13 is switched by the control device 5 by a known method, the mover 2 moves forward and backward relative to the stator 1. A large number of Hall elements 14 are provided on the bottom surface of the stator 1 at equal intervals to the coil 13, while magnets 25 are provided on the inner wall of the mover 2 facing the bottom surface at equal intervals to the magnets 23A and 23B. The relative position of the stator 1 and the mover 2 and the moving position of the mover 2 are detected by being provided.

Both ends 21, 2 in the longitudinal direction of the mover 2
2, the engaging members 3A and 3B, respectively, as shown in FIG.
The engaging members 3A and 3B have the same shape and are arranged symmetrically toward each other inwardly facing each other. The details of the engagement member 3A will be described with reference to FIG.
1, the base end 32 of which is coupled to a horizontal rotation shaft 33 and is rotatable in the vertical direction. The engaging member 3A is the base end 3
2 by the coil spring 34, one end of which is fixed to the protrusion 2
1 is urged in the descending direction, and a groove 35 is formed on the inner side surface thereof. The groove 35 is formed on the base end 32 of the engaging member 3A.
After being further inclined toward the tip 31, it is bent vertically downward.

A disengagement rod 4 is provided on the mover 2 so as to be horizontally movable. The rod 4 is formed by bending a long plate and is movable in long holes 41 formed at a plurality of longitudinal positions. The locking pin 26 provided on the side wall of the child 2 is inserted and held so as to be relatively movable between the end faces of the elongated hole 41. The engagement releasing rod 4 is provided with a pin 44 projecting from both ends 42, 43 (FIG. 2) having a narrow width, and the pin 44 is engaged with the engaging member 3 described above.
When the engaging rod 3 is fitted in the groove 35 of A, 3B and moves to the left in FIGS. 2 and 5, the tip 31 of the engaging member 3A moves upward, and when it moves to the right, the engaging member 3A engages. The tip of 3B rotates upward.

When the engaging member 3A is in the horizontal posture, the pin 44 is located at the bent portion of the groove 35 as shown in FIG. 5, and when an external force is applied upward in this state, the pin 4
4 moves relatively in the vertical portion of the groove to move the tip 3 of the engaging member 3A.
1 can be raised and rotated freely. Further, the length of the disengagement rod 4 is longer than that of the movable element 2, and when the movable element 2 reaches the end portion of the stator 1, the end surface of the rod 4 protruding is the end surface of the stator 1. It is pushed in by abutting against.

A rectangular recess 3 is formed on the lower surface of the engaging member 3A.
6 is formed, and the rectangular convex portion 611 of the tip piece 61 forming the arm 6 is fitted and engaged with the recess 36 (FIG. 5). The distal end piece 61 is bent and connected to the intermediate piece 62 so as to be horizontally rotatable, and the intermediate piece 62 is connected to the base end piece 63 so as to be vertically rotatable. Then, the base end piece 63 can be moved back and forth in the axial direction (that is, the inner and outer directions of the vehicle body opening) by a guide mechanism (not shown). The engaging member 3A is the end piece 61 of the arm 6.
When the stator coil 13 is energized and the mover 2 is relatively moved while being engaged with the mover 2, the mover 2 is fixed to the arm 6, so that the stator 1, that is, the slide door S actually moves.

The cover plate S2 (FIG. 5) fixed to the door panel of the slide door S is provided with plate spring stoppers 8 at two positions (FIG. 2) in the longitudinal direction of the stator 1 and the lower surface of the arm tip piece 61. A stopper roller 612 protruding from the upper end of the roller rides on the stopper 8 at a predetermined position of the stator 1, that is, the slide door S, and is locked in the arc-shaped recess 81 (FIG. 5).

A schematic structure of the latch 71 portion shown in FIG. 1 will be described with reference to FIG. 6. A pin 711 projecting from the latch 71 is in contact with one end of a link arm 78 which rotates around a support shaft 79, and The other end of the arm 78 projects into the movement locus of the cam 75.

From the state in which the latch 71 is half-engaged with the striker 72 (half-lock), the cam 73 is driven by the motor 73.
When 5 is rotationally moved in the direction of the arrow in the figure, it abuts against the other end of the link arm 78 to rotate it upward (arrow in the figure), and the latch 71 is fully locked in the direction (arrow in the figure) via the pin 711. ). With the striker 72 completely held in the recess of the latch 71,
Fully engages bar 74.

Even after the cam 75 has passed and the contact state with the link arm 78 has been released, the latch 71 is retained by the bar 74.
Keeps the full lock state, and when the bar 74 is unlocked and rotated by a solenoid (not shown) or the like when the door is opened, the latch 71 can freely rotate.

The operation of the switchgear having the above structure will be described below with reference to FIG. In the figure, white circles are engagement members 3A, 3
B shows the engagement between the arm 6 and the black circle indicates the leaf spring stopper 8
Shows engagement of the arm 6 with the stopper roller 612.

FIG. 7 (1) shows a state in which the slide door S is closed, and the movable member 2 is engaged with the arm 6 by the engaging member 3A provided at the end 21 thereof. When the operation switch 51 (FIG. 1) is opened in this state, the pole 74 and the latch 7 are opened.
The engagement of 1 is released, and the latch 71 can freely rotate.

Next, when the stator coil 13 is energized by the controller 5 to move the mover 2 relatively to the front of the vehicle (rightward in FIG. 2), the mover 2 is fixed to the arm 6, The stator 1, that is, the sliding door S moves to the rear of the vehicle, the engagement between the latch 71 and the striker 72 is released, and the door is opened.

When the slide door S moves open and the mover 2 reaches the other end 12 of the stator 1 (FIG. 7 (2)), the stopper roller 612 of the arm 6 rides on the plate spring stopper 8 and engages with it. At the same time, the protruding end 43 (FIG. 2) of the engagement releasing rod 4 abuts against the end face of the stator end 12 and is pushed in, and the engagement between the arm 6 and the engaging member 3A is released. .

In this state, when the energization of the stator coil 13 is switched to move the mover 2 rearward of the vehicle, the inside of the stator 1 stopped by the engagement between the leaf spring stopper 8 and the stopper roller 612 of the arm 6 is moved. The mover 2 moves, and the tip piece 61 of the arm 6 pushes up the other engagement member 3B to fit and engage in the recess 36 of the other engagement member 3B (FIG. 7 (3)).

When the energization of the stator coil 13 is switched again, the stator 1 is fixed with respect to the mover 2 fixed to the arm 6.
That is, the slide door S moves further to the rear of the vehicle and is in a fully opened state (FIG. 7 (4)). At this time, the slide door S
With the movement of, the engagement between the stopper roller 612 of the arm 6 and the leaf spring stopper 8 is released.

When the sliding door S is to be closed, the course opposite to that at the time of opening is followed to the fully closed state (FIG. 7 (5),
(6), (7)). When the slide door S is fully closed, the striker 72 enters the recess 712 of the latch 71 (FIG. 6), and the pole 74 returned to the original position engages with the latch 71 and becomes a half-latch state ( (Figure 6). The control device 5 that detects this state latches the latch 71.
Is rotated and is in the full latch state.

As described above, since the movable element 2 can be further moved in the opening or closing direction by the length of the slide door S which has been opened or closed, the movable element 2 is dead. It is possible to secure a sufficient opening / closing stroke without a stroke.

In addition to the structure shown in the above embodiment, the structure of the latch portion is such that, as shown in FIG. 8, the striker 72 is not movable inward and outward at the edge of the body opening (chain line in the figure), and at the outer end. The striker 72 may be pulled inward after the latch 71 of the closed slide door S is engaged with the located striker 72 in a fully locked state. In this case, the motor for turning the latch 71 to the full lock is unnecessary.

Further, when a sufficient opening / closing operation force of the slide door is obtained, the above-mentioned structure for moving the striker in and out is also unnecessary.

[0031]

As described above, according to the slide door opening / closing device of the present invention, the opening / closing stroke of the door can be sufficiently secured even if the mover is large in size to obtain the necessary opening / closing operation force.

[Brief description of drawings]

FIG. 1 is a perspective view of a slide door provided with an opening / closing device of the present invention as seen from the inside of a vehicle.

FIG. 2 is an overall front view of a linear motor.

FIG. 3 is an overall plan view of a linear motor.

FIG. 4 is a cross-sectional view of a linear motor.

FIG. 5 is a perspective view of a main part of a linear motor.

FIG. 6 is a schematic plan view of a door lock portion.

FIG. 7 is a conceptual diagram showing an operation of the opening / closing device.

FIG. 8 is a horizontal sectional view showing another example of the door lock portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stator 11, 12 Stator end part 2 Movable part 21, 22 Movable part end part 3A, 3B Engagement member (connection point switching means) 4 Engagement release rod (engagement release means) 5 Control device (control means) 6 arms

Claims (2)

[Claims] 1. A linear motor long stator (1) fixedly mounted horizontally on a slide door (S) and an end of an arm (6) projecting from a vehicle body, the stator (1) ), The connection point between the mover (2) relatively moving along the armature (2) and the arm (6) of the mover (2) is selected to be one of both ends in the moving direction of the mover (2). Connection point switching means (3A, 3B, 4,
5) A slide door opening / closing device for a vehicle, comprising: 2. An engagement member (wherein the connection point switching means is provided on both ends of the mover (2) in the moving direction thereof and selectively engages with the tip of the arm (6). 3A,
3B) and the ends (11, 12) of the stator (1) are farther from the ends (11, 12) of the stator of the engaging members (3A, 3B) when the mover (2) arrives. And the movable element (2).
After the stator ends (11, 12) have been moved in the positive direction, the mover (2) is moved in the reverse direction to reach the stator ends (11, 12) of the engaging members (3A, 3B). 2. A sliding door opening / closing device for a vehicle according to claim 1, further comprising a control means (5) for engaging the end of said arm (6) closer to said arm (6) and again moving the mover (2) in the forward direction.