JP2717961B2 - Vehicle sliding door structure - Google Patents

Description

The present invention relates to a structure of a slide door which can be opened and closed by sliding along a guide rail provided on a vehicle body.

2. Description of the Related Art For example, a slide door that is slidable in the front-rear direction of a vehicle along a guide rail provided on the vehicle body is provided on a rear seat side of a wagon type vehicle. As an opening / closing drive device that automatically opens and closes by sliding the sliding door along a guide rail, various opening / closing drive devices using a chain driven by a motor, an air cylinder, or the like have been developed.

As an example, there is an automatic opening / closing device for a sliding door for a vehicle described in Japanese Patent Application Laid-Open No. 59-170381, and the automatic opening / closing device includes a sliding door slidable along a rail attached to a vehicle body. A pair of flexible cables each having one end connected to both side portions of the slide door and the other end wound around driving means disposed at a predetermined position of the vehicle body, respectively. The sliding door is slid in the front-rear direction of the vehicle body by opening and closing the cable by pulling the cable and causing the cable to travel forward and backward.

(Problems to be Solved by the Invention) By the way, when closing the slide door as described above, the slide door is slid in the closing direction along the guide rail, and at the final stage of sliding in the closing direction. The sliding door can be securely closed by pressing the sliding door toward the inside of the vehicle body. However, as described above, when the sliding door is slid in the closing direction, the sliding door is directed toward the inside of the vehicle body different from the sliding direction. Therefore, it is difficult to reliably close the slide door simply by sliding the slide door in the closing direction, and operability at the time of closing the slide door has been a problem.

The present invention addresses the above-described situation, and when the slide door is closed by sliding the slide door along a guide rail provided on the vehicle body, the slide door is slid just before the full closing at the time of the closing. It is an object of the present invention to provide a slide door structure that can properly close the slide door by properly moving the door toward the inside of the vehicle body.

(Means for Solving the Problems) In order to solve the above problems, the present invention is characterized in that it is configured as follows.

That is, in a structure of a slide door slidable along a guide rail provided on a vehicle body, a helical shaft provided along a moving direction of the slide door, and a driving unit for rotating the helical shaft; A sliding member engaged with the helical shaft and sliding on the shaft with rotation of the shaft to open and close a sliding door; and a sliding member rotatably provided on the vehicle body and detachable from the sliding door. And a link mechanism for engaging the hook member with the door and moving the door inward in the vehicle body in conjunction with the sliding operation of the slide member immediately before the slide door is fully closed when the slide door is closed. It is characterized by the following.

(Action) According to the above configuration, the hook member rotatably provided on the vehicle body is engaged with the slide member by the link mechanism during the sliding operation of the slide member immediately before the slide door is fully closed, and the link member is engaged with the slide member. The door can be moved toward the inside of the vehicle body by the hook member, whereby the slide door can be securely closed.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, a slide door 3 slidable in the front-rear direction of the vehicle body for opening and closing the rear compartment 2 is provided on a side surface of the vehicle body 1.
A channel-shaped lower rail 4 extending in the front-rear direction of the vehicle body and having a front end slightly curved toward the inside of the rear compartment 2 is fixedly provided on a lower surface of a side portion of the vehicle body 1. Inner panel 3a forming the sliding door 3
The front end of the guide bracket 5 fixed below the front end (see FIG. 2) is engaged. The outer panel 6a forming the rear side surface of the vehicle body 1 extends substantially in the vertical direction at the center in the front-rear direction of the vehicle body, and the front end portion is formed in the rear casing 2.
A channel-shaped center rail 7 that is slightly curved is fixed inside the center of the sliding door 3. The center rail 7 includes a guide member 8 rotatably supported by the rear end of the inner panel 3 a of the slide door 3. The tip is engaged. Further, a channel-shaped upper rail 10 extending in the front-rear direction of the vehicle body is fixed to a lower surface of a side portion of the roof panel 9 of the vehicle body 1. The upper rail 10 is slightly curved toward the inside of the rear compartment 2, and the inner panel 3a of the slide door 3 is attached to the upper rail 10.
The tip of a guide arm 11 fixed to the upper edge is engaged. As a result, the slide 3 is moved forward along the guide rails 4, 7, and 10 from the open state located on the side of the outer panel 6a forming the rear side surface of the vehicle body 1 as shown in the figure. In the final stage, the door moves along the curved shape of the front end of each of the guide rails 4.7 and 10 toward the inside of the vehicle (toward the rear compartment 2), thereby closing the door shown in solid lines in FIG. It is in a state.

As shown in FIG. 1, a striker 12 is fixed to a predetermined position of an opening edge 1a of the vehicle body 1 where the rear edge of the slide door 3 contacts when the slide door 3 is closed. The striker 12 is engaged by a lock mechanism (not shown) provided at the rear end of the slide door 3, thereby locking the slide door 3 in a closed state. .

Further, an opening / closing drive device 13 for sliding the slide door 3 in the longitudinal direction of the vehicle along the guide rails 4.7 and 10 to open and close the door 3 is disposed below the side of the vehicle body 1. The drive unit 13 includes a pair of brackets 14a and 14b which are opposed to each other in the front-rear direction of the vehicle body and are attached to, for example, a lower surface of a floor panel (not shown).
6 are parallel to each other, and both shafts 15 and 16 are rotatably mounted. A motor 17 for driving the helical shaft 16 to rotate forward and reverse is further provided. The member 18 is engaged with the camshaft 15 and the helical shaft 16, and when the drive motor 17 is started from the ON state of the clutch mechanism, the slide member 18
Is the vehicle rear side (door opening direction) according to the motor rotation direction,
Alternatively, the vehicle is configured to travel toward the front side of the vehicle body (the door closing direction).

Further, the opening / closing drive device 13 includes a bendable four-joint link mechanism 19 pivotally connected to four links 19a to 19d, and one joint portion 20a of the four-joint link mechanism 19 (see FIG. 2) is provided. As a rotation fulcrum of the link mechanism 19, on the vehicle body side opposite to the slide door 3 with the helical shaft 16 interposed therebetween, for example, on the lower surface side of the floor panel, it is rotatably supported via a bracket 21 (see FIG. 1). One link 19b connected to a joint 20b (see FIG. 2) located diagonally to the rotation center joint 20a is extended beyond the joint 20b, and its extended free end is The slide door 3 is connected to the lower end on the front side via a mounting bracket 22, and an intermediate portion of another link 19 a connected to the link 19 b is connected to the slide member 18.

In this case, the link between the link 19a and the slide member 18 is
A pivot pin 23 is erected on the upper surface of the slide member 18, and the distal end of a slide link 24 that is supported by the pivot pin 23 so as to freely swing horizontally is supported by a link 19a. Accordingly, for example, when the slide member 18 travels toward the rear of the vehicle body in a state where the slide door 3 is closed as shown in FIG. Acting on the four-joint link mechanism 19, the four-joint link mechanism 19 rotates while bending in the same direction with the rotation center joint 20a as a fulcrum during the traveling, and the slide door 3 slides in the opening direction. Similarly, when the slide member 18 travels in the opposite direction, the movement of the member 18 is transmitted to the slide door 3 by the four-joint link mechanism 19, and the door 3 slides in the closing direction. When the linear movement of the slide member 18 is converted into the rotation movement of the four-joint link mechanism 19, the change in the relative positional relationship between the slide member 18 and the link 19a is determined by the swing movement of the swing link 24. Is absorbed by

Further, the slide member 18 has a built-in clutch mechanism 25 for engaging and disengaging the member 18 with the spiral shaft 16 as necessary. FIG. 3 and FIG.
Referring to the drawings, a support shaft 26 is fixed to the lower surface of the central portion of the slide member 18 in parallel with the spiral shaft 16 and the cam shaft 15, and a clutch member supported by the support shaft 26 so as to be able to swing up and down. 27 is housed in a concave portion 18a formed at the center of the lower surface of the slide member 18, and this clutch member 27 is a pair of coils interposed between both side portions of the member 27 and the slide member 18. By the springs 28, 28,
In addition to being urged to the position shown by the solid line in FIG. 4, a convex portion 27a abutting on the outer peripheral portion of the camshaft 15 is provided on one side of the clutch member 27, and a female screw meshing with the spiral shaft 16 on the other side. The portions 27b are integrally formed. And
The urging force of the coil springs 28, 28 keeps the convex portion 27a into the concave portion 15a of the camshaft 15, and from this state, the camshaft 15 rotates, for example, by a predetermined angle as shown by a chain line in FIG. When the projection 27a
Is disengaged from the recess 15a and is pushed down, and the clutch member 27 is
The female screw portion 27b meshes with the spiral shaft 16. Therefore, when the spiral shaft 16 is rotated forward and reverse by the drive motor 17 from this state, the slide member 18 reciprocates along the spiral shaft 16.

Further, as shown in FIGS.
Is pivoted about the support shaft 26 with the rotation of the camshaft 15 so that the female screw portion 27b of the clutch member 27 is
An operating means 30 to be engaged with the bracket 6 supports the ends of the camshaft 15 and the helical shaft 16 respectively.
This operating means 30 is provided on the 14a side, is rotated by the drive motor 17 via an appropriate interlocking mechanism (not shown), and has a large-diameter first disk plate 31 formed integrally therewith. A first shaft 32, a front end of which is externally fitted to the rear end of the first shaft 32, and a second disk plate 33 having a large diameter are integrally formed and rotatably supported by the bracket 14a. 2 shaft 34 and bracket 14
and a third disc plate 35 integrally provided at an end of the camshaft 15 protruding from a. An engagement pin 36 is fixed to the third disc plate 35,
The first and second disk plates 31 and 33 are formed with notches 31a and 33a, respectively, for engaging the engagement pins 36 fixed to the third disk plate 35. Further, a coil spring 37 is mounted on the first shaft 31, and both leg portions 37a, 37b of the coil spring 37 are engaged with engaging holes 31b, 33b formed in the disk plates 31, 33, respectively. Have been. On the other hand, a coil spring 38 is also mounted on the camshaft 15, and both leg portions 38a, 38b of the coil spring 38 have engagement holes 14b, 35a formed in the bracket 14a and the third disk plate 35.
The engagement pins 36 fixed to the disk plate 35 are respectively engaged with the first and second disk plates 3.
The disc plate 35 is urged in a state where the disc plate 35 is engaged with each of the engagement holes 31a and 33a of the discs 1 and 33. Also,
A small-diameter shaft portion 16a formed integrally with the front end of the helical shaft 16 is rotatably fitted in a rear portion of the second shaft 34, and a drive pin 39 is fixed to the small-diameter shaft portion 16a. The second shaft 34 has a circumferential hole 34a formed in a predetermined range in the circumferential direction. The second shaft 34 is engaged with the drive pin 39 in the circumferential hole 34a. 34
And the small diameter shaft portion 16a of the spiral shaft 16 are connected.

Therefore, the first shaft 32 is
As shown in FIG. 8 (I), when it is rotated in the direction of arrow A, the first disk plate 31 integrated with the first shaft 32 starts to rotate.
The notch 31a presses the engagement pin 36 fixed to the third disk plate 35, and the third disk plate 35 turns in the direction of arrow B against the coil spring 38. Then, the camshaft 15 integrated with the third disk plate 35 rotates at a predetermined angle.
As a result, the clutch member 27 of the clutch mechanism 25 (see FIGS. 3 and 4) swings, and the female screw portion 27a of the clutch member 27 meshes with the spiral shaft 16.
As described above, in the initial rotation of the first shaft 32, that is, the first disk plate 31, the coil spring
37 is slightly changed, and the first disk plate 31 and the second disk plate 33 are rotated together by the coil spring 37 with their phases slightly changed. In this case, As shown in FIG. 8 and (II), the end of the peripheral hole 34a formed in the second shaft 34 integral with the second disk plate 33 is fixed to the small-diameter shaft 16a integral with the helical shaft 16. The driving pin 39 provided is not in contact with the driving shaft 39, and therefore, the first shaft
In this state, the rotational force of the shaft 32 is not transmitted.

Further, when the first shaft 32 (the first disc plate 31) rotates, as shown in FIG. 8 (IV), the peripheral hole 34a of the second shaft 34 that rotates together with the first shaft 32.
One end of the shaft abuts on the drive pin 39, whereby the spiral shaft 16 is rotated, and the slide member 18 slides along the shaft 16. In this case, as shown in FIG. 8 (III), the addition from the spiral shaft 16 side acts on the second shaft 34,
For this reason, the coil spring 37 locked on the second disk plate 33 and the first disk plate 31 integral with the second shaft 34 is greatly deformed. They rotate together with their phases largely changed. As a result, the positions of the notches 31a and 33a in both disc plates 31 and 33 are shifted, and the engaging pin 36 does not engage with any of the notches 31a and 33a. The third disk plate 35, that is, the camshaft 15 is kept rotated at a predetermined angle.

Also. When the drive motor 17 is stopped, the first disk plate 31 and the second disk plate 31 are moved by the urging force of the coil spring 37 as shown in FIGS.
33 and the notches 31a and 33a are aligned with each other, but the notches 31a and 33a may be shifted from the engagement pin 36. . In this case, by slightly reversing the drive motor 17, the first disk plate 31 and the second disk plate 33 are rotated in the direction indicated by the arrow A, and the notches 31a,
The engagement pin 36 can be engaged with 33a, whereby the camshaft 15 returns to the original state,
The clutch member 27 is disengaged from the helical shaft 16.

It should be noted that, even when the drive motor 17 is slightly reversed, as shown in FIG.
Is formed with a peripheral hole 34a, so that the helical shaft 16 does not reversely rotate via the drive pin 39. The notch 33a in the second disk plate 33 has a notch in a wider range than the notch 33a formed in the first disk plate 51. Opposite to the first disk plate 31
The notch 31a of the second disk plate 33 may have a notch in a wider range than the notch 33a of the second disk plate 33. In each case, the drive motor 17 is slightly rotated in the reverse direction to make each cut. Each of the notches 31a, 33 is formed so that the engagement pin 36 can be favorably engaged with the notches 31a, 33a.
The shape of a is set.

Here, a drive circuit for operating the drive motor 17 will be described. As shown in FIG. 9, the drive circuit 40 comprises a first system of two systems for connecting both poles of the drive motor 17 and the earth 41, respectively. , The second installation circuits 42 and 43, and the power supply 44
Connected to the first and second power supply circuits 45, respectively.
The power supply circuits 46 and 47 and the respective closing switches 48a and 48b for closing the slide door 3 provided on the first grounding circuit 42 are provided.
48c, open switches 49a, 49b, 49c for opening the slide door 3 also provided on the second ground circuit 43, and third switches connected to the first and second power supply circuits 46, 47, respectively. ,
Fourth power supply circuits 50 and 51, and first and second power supply circuits 46 and 47
Controls the operation of the closing switch 48b and the closing switch 49b provided in the middle of the fifth and sixth power supply circuits 52 and 53 respectively connected to the third and fourth power supply circuits 50 and 51. Switch 54 for the power supply and the fifth and sixth power supply circuits 5
A changeover switch 55 is provided in the middle of the switches 2 and 53 and controls whether the closing switch 48c and the opening switch 49c are activated. The slide door 3 is moved to a predetermined position (open position and closed position) by a position detection sensor (not shown) such as a limit switch for detecting the open state and closed state of the slide door 3. ) Is provided with a switch 56 for stopping the operation of the drive motor 17 when the condition (1) is reached. Therefore, when the changeover switches 54 and 55 are closed and the third and fifth power supply paths 50 and 52 are connected to the power supply 44, one of the closing switches 48a, 48b and 48c is turned off. When the power supply is turned on, the first ground circuit 42 is opened, and the power supply 44 and the drive motor 17 are connected via one of the first, third, and fifth power supply circuits 46, 50, and 52 to drive the drive. Motor 17
Is rotationally driven, the cam shaft 15 is rotated by a predetermined angle via the actuating means 30, and the clutch member 27 is rotated about the support shaft 26 as shown by a chain line in FIG. As a result, the female screw 27b of the clutch member 27 meshes with the helical shaft 16, and as a result, the slide member 18 moves on the helical shaft 16 toward the front of the vehicle body. It is designed to slide in the closing direction. In the same manner as above, the changeover switch 54
And 55 are closed and the fourth and sixth power supply circuits 51 and 53 are connected to the power supply 4
4 is connected to each open switch 49a, 49b, 4
9c, the second grounding circuit 43
Is opened, and the drive motor 17 is connected to the power supply 44 via any one of the second, fourth, and sixth power supply circuits 47, 51, and 53, and the drive motor 17 is driven in the opposite direction to the above. As a result, the actuating means 50 is driven in the same manner as described above.
The female screw portion 27b of the clutch member 27 is
As a result, the slide member 18 is moved in the opposite direction to the above, so that the slide door 3 is slid in the opening direction. When the closing switches 48a, 48b, 48c and the opening switches 49a, 49b, 49c are not operated, as shown by the solid line in FIG. Thus, the slide door 3 can be opened and closed by manual operation.

Note that, for example, the respective close / open switches 48a, 49a are on the driver's seat side, the respective close / open switches 48b, 48b are on the vehicle interior side near the slide door 3, and the respective close / open switches 48c, 49c are Each of the first and second power supply circuits 46 and 47 is provided with a driving motor 1
A controller 5 comprising a variable resistor for controlling the operation of 7 and varying the opening / closing speed when the sliding door 3 is opened / closed.
7,58 are provided respectively.

In the present embodiment, when the slide door 3 is slid in the closing direction, a closing mechanism 60 is provided for moving the door 3 toward the inside of the vehicle body at the final stage to reliably bring the door into the closed state. ing. As shown in FIGS. 2 and 10, the mechanism 60 is disposed between the opening / closing drive device 13 and the vehicle body, and includes a bracket 14 for supporting the drive motor 17.
A bracket 62 is provided between a first link 61 rotatably supported by an extension of a and a predetermined position of the vehicle body, that is, an outer panel 6a and an inner panel 6b (see FIG. 2) constituting a rear side surface of the vehicle body. Rod member 63 rotatably supported via
And a second link 64 fixed to the lower end of the rod member 63.
And a third link 66, one end of which is connected to the second link 64 via a connecting pin 65 and the other end of which is connected to the first link 61. A hook member 69 is fixedly provided on the rear end 3c of the slide door 3 via a mounting bracket 67 so as to be engageable with an engaging pin 68. Further, an engagement pin 70 is fixedly provided on one side of the first link 61. The engagement pin 70 is engaged with a hook member 71 fixedly provided on the lower surface of one side of the slide member 18. Are to be combined. Therefore, when the slide member 18 further moves on the spiral shaft 16 in the closing direction of the slide door 3 from the state shown in FIG. 10, the first member is fixed to the hook member 71 fixed to the slide member 18. Link 61
The first pin 61 is rotated in the direction of the arrow shown in FIG. 10, and the second and third links are thereby rotated. 64 and 66 are also rotated or moved in the directions of the arrows, so that the hook member 69 is rotated via the rod member 63 integrated with the second link 66, and the hook member 69 is The engaging member 68 engages with an engaging pin 68 fixed to the rear end portion, and furthermore, with the rotation of the hook member 69, the slide door 3 is moved toward the inside of the vehicle body immediately before the door is fully closed at the time of closing. The door 3 can be reliably closed.

Next, the operation of the present embodiment will be described. For example, when the slide door 3 is in a closed state as shown by a solid line in FIG. The camshaft 15 is rotated at a predetermined angle via 30 so that the clutch mechanism
The 25 clutch members 27 are engaged with the spiral shaft 16, and the slide member is rotated with the rotation of the spiral shaft 16.
18 will run to the rear of the vehicle. As a result, the four-joint link mechanism 19 connected to the slide member 18 by the swing link 24 is rotated toward the rear of the vehicle body as shown by a chain line in FIG. Can be opened. When the slide door 3 is in the open state, as shown by the chain line in FIG.
The slide member 18 travels along the helical shaft 16, and the four-joint link mechanism 19 connected to the slide member 18 by the swing link 24 is turned forward as shown by the solid line in FIG. As a result, the slide door 3 can be automatically closed. In particular, in this embodiment,
At the final stage when the slide door 3 is closed, the hook member 69 of the shutoff mechanism 60 engages with the engagement pin 68 fixed to the rear end 3c of the slide door 3 in conjunction with the slide operation of the slide member 18. In this case, the sliding door 3 is preferably pushed into the vehicle body in accordance with the rotation of the hook member 69, and the door 3 can be reliably closed.

Further, by utilizing the sliding operation of the slide member 18 for opening and closing the slide door 3, it becomes possible to operate the closing mechanism 60.
No special driving means for operating the shutoff mechanism 60 is required, whereby the slide door 3 can be reliably closed with a relatively simple configuration.

(Effects of the Invention) As described above, according to the present invention, when the sliding member slides, the hook mechanism is engaged with the door immediately before the sliding door is fully closed by the link mechanism, and the door is moved inward of the vehicle body. The sliding door can be closed, and the sliding door can be securely closed.

In addition, by utilizing the sliding operation of the slide member that opens and closes the slide door, it is possible to configure a mechanism that securely closes the slide door, thereby enabling the slide door to be reliably closed with a relatively simple configuration. Can be.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is a schematic perspective view of a main part of an automobile to which a slide door structure of the present embodiment is applied, FIG. 2 is an enlarged sectional view of a main part of FIG. FIG. 3 is a longitudinal sectional view of the slide member, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 is a perspective view showing the structure of the actuating means, FIG. 7 is a sectional view taken along the line VII-VII of FIG. 6, FIG. 8 is a schematic diagram for explaining the operation state of the operating means, and FIG. 9 is a drive circuit diagram of the opening / closing drive device. FIG. 10 is a perspective view showing the structure of the shutoff mechanism. DESCRIPTION OF SYMBOLS 1 ... Body, 3 ... Slide door, 4, 7, 10 ... Guide rail, 16 ... Helical shaft, 17 ... Drive motor (drive means), 18 ... Slide member, 69 ... Hook member, 61 , 64,
66 ... link mechanism (61 ... first link, 64 ... second link, 66 ... third link).

Claims (1)

(57) [Claims] 1. A structure of a slide door slidable along a guide rail provided on a vehicle body, comprising: a helical shaft provided along a moving direction of the slide door; and a helical shaft. Drive means for rotating, a slide member engaged with the helical shaft and sliding on the shaft as the shaft rotates to open and close a slide door, and the slide door rotatably provided on the vehicle body And a link for engaging the hook member with the door and moving the door inward of the vehicle body in conjunction with the sliding operation of the slide member immediately before the slide door is fully closed when the slide door is closed. A sliding door structure for a vehicle, comprising a mechanism.