JPH0716497Y2 - Sliding device for automobile sliding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a slide device for an automobile slide door.

(Prior Art) Generally, in a one-box type vehicle and a part of a two-box type vehicle, the rear door is located above,
It is a slide door that is slidable in the front-rear direction by being guided by the center and lower guide rails.

The movement locus of the sliding door is a combination of movement in the vehicle width direction as well as movement in the front-back direction. That is, at the time of fully closing, after the forward sliding, it becomes a movement toward the vehicle body side,
Also, at the time of opening, after moving away from the vehicle body, it slides backward. For this reason, the guide roller on the door side, which travels along the guide rail provided on the vehicle body side, ensures smooth movement in the front-rear direction and the vehicle width direction.
The movable bracket that supports the guide roller is rotatably attached to the door.

(Problems to be Solved by the Invention) As described above, the movable bracket having the guide roller is rotatably attached. Specifically, the movable bracket is rotated by the connecting shaft with respect to the fixed bracket fixed to the door side. Can be freely connected.

The movable brackets thus mounted are arranged at three positions in the upper part, the lower part, and the middle of the slide door, and are guided by the three guide rails provided on the vehicle body side. In this case, the guide rails at the three locations have relative positional changes that cannot be prevented from being assembled, and there is a risk that smooth travel of the slide door may be hindered. Further, if there is play in the connecting portion between the movable bracket and the fixed bracket, there is a problem in that play easily causes rattling, which appears as a vibrating sound and deteriorates the quality.

Therefore, an object of the present invention is to provide a sliding device for a sliding door for an automobile, which allows the sliding door to smoothly run and prevents rattling at a connecting portion between a fixed bracket and a movable bracket.

[Means for Solving the Problem] (Means for Solving the Problems) In order to achieve the above object, in the present invention, a sliding device for a slide door that slides while being guided by a plurality of guide rails provided on the vehicle body side. The sliding device is a movable bracket provided with a guide roller that can run along at least a guide rail located below the vehicle body side, and a movable shaft that is rotatable with the movable bracket by a connecting shaft attached to the sliding door side. A bearing member having a fixed bracket connected thereto, a fixed bracket support portion mounted on the connecting shaft to support the fixed bracket and a movable bracket support portion to support the movable bracket, a fixed bracket support portion of the bearing member and a movable bracket support And an elastic member that is provided between the member and the member and that is urged in the axial direction.

(Operation) According to such a slide device, when the slide door is opened and closed, the movable bracket is smoothly rotated by the bearing member and is capable of coping with the relative position change of the guide rail due to the axial biasing force of the elastic member. The looseness of the movable bracket and the vibration noise are absorbed, and the quality is not deteriorated.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings of FIGS. 1 to 5.

Reference numeral 1 in the figure shows a sliding door of a two-box car 3.

The slide door 1 is slidable in the front-rear direction by being guided by three guide rails 5, 7, 9 which are an upper guide rail 5, an intermediate guide rail 7 and a lower guide rail 9.

The upper guide rail 5 is arranged on the roof side rail 11, the middle guide rail 7 is arranged on the body side 13, and the lower guide rail 9 is arranged and fixed on each area of the side sill 15, so that each guide rail 5, 7, 9 is a linear area a. And a curved region b that curves from the straight line region a toward the indoor side.

FIG. 1 shows a lower guide rail 9 and a guide roller 17 that can run along the guide rail 9. The guide rail 9 is a pair of substantially horizontal horizontal planes 19 bent in a C-shaped cross section. , 19 and a pair of left and right vertical surfaces that are almost vertical 21,21
It is formed with and has a long shape in the front and back.

The guide roller 17 includes a first roller 23 that runs along a lower horizontal surface 19 and a vertical surface 21 that is arranged in front of and behind the first roller 23.
Consisting of a pair of second rollers 25, 25 running along
The first roller 23 is a support roller. The first and second rollers 23, 25 are rotatably mounted by a vertical roller shaft 29 protruding from the movable bracket 27 and a horizontal roller shaft 31, respectively. The first roller 23 is mounted on the roller shaft 31. A collar 33 for positioning is interposed.

Movable bracket 27 is upper bracket 35 and lower bracket
37 and a U-shaped cross section, and is rotatably connected to a fixed bracket 41 by a connecting shaft 39.

The fixing bracket 41 has an upper mounting portion 43 and a lower mounting portion 45 which respectively face the upper bracket 35 and the lower bracket 37 from the outside, and the base portion 46 is fixed to the inner panel 1a of the slide door 1 by bolts 48. There is.

The connecting shaft 39 includes the mounting holes 43a, 35a, 37a, 45 of the upper mounting portion 43 and the upper bracket 35, the lower bracket 37 and the lower mounting portion 45.
The upper end is a flange 39a which penetrates each a and contacts the upper mounting portion 43. Also, the lower end is the lower mounting part 45
It is crimped 39b to restrain the movement in the axial direction (arrow a).

Mounting holes 35a, 37 for upper bracket 35 and lower bracket 37
A bearing member 47 made of a synthetic resin for ensuring smooth rotation with respect to the connecting shaft 39 is press-fitted into a. As shown in FIG. 2, the bearing member 47 includes a shaft tubular portion 49 and a shaft tubular portion through which a connecting shaft 39 is passed.
It is composed of a fixed bracket support portion 51a and a movable bracket support portion 51b protruding from the disk 49 in a disk shape, and an elastic member 53 such as rubber is assembled between the fixed bracket support portion 51a and the movable bracket 51b. Also, the fixed bracket support
The central portion of the upper surface of 51a is a recess 54, and the fixed bracket support portion 51a has a shape that is elastically deformable in the axial direction.

That is, in the bearing member 47 on the upper bracket 35 side, the fixed bracket support portion 51a is in elastic contact with the upper attachment portion 43, and the movable bracket support portion 51b is in surface contact with the upper bracket 35. On the other hand, in the bearing member 47 on the lower bracket 37 side,
The fixed bracket support portion 51a is in elastic contact with the lower mounting portion 45, and the movable bracket support portion 51b is in surface contact with the lower bracket 37. As a result, the fixed bracket support portion 51a and the movable bracket support portion 51b can be expanded and contracted in the axial direction (arrow a), and the upper mounting portion 43 and the upper bracket 35,
The lower mounting portion 45 and the lower bracket 37 are each adapted to be provided with a biasing force in the axial direction (arrow a).

In this case, as shown in FIG. 6, the fixed bracket support portion 51a and the movable bracket support portion 51b of the bearing member 47 are completely divided, and a coil spring that expands and contracts in the axial direction (arrow a) between them.
55 may be provided.

In addition, a movable bracket 59 having a guide roller 57 that travels along the middle guide rail 7 and a movable bracket 63 that has a guide rail 61 that travels along the upper guide rail 11 are connected to each other at a lower portion during opening and closing. Since the influence of vibration is smaller than that of the movable bracket 27 of the guide roller 17, the bearing members 47 in which the elastic member is omitted are respectively provided, but a bearing member in which the elastic member is incorporated may be adopted.

According to the slide device of the slide door configured as described above, the slide door 1 is opened and closed by being guided by the three guide rails 5, 7, and 9. At this time, the movable bracket 27 traveling along the lower guide rail 9 which is most affected by vibration
Since the bearing roller 47 rotates, the guide roller 17 smoothly slides on the guide rail 9 and travels smoothly. During this traveling, the connecting portion of the movable bracket 27 responds to the relative position change of the guide rails 5, 7 and 9 by the urging force urged by the elastic member 53 in the direction of the axis (arrow A), and the rattling and the vibration noise As a result, the quality is not deteriorated.

[Advantages of the Invention] As described above, according to the sliding device of the present invention, the elastic member provided on the bearing member allows the sliding door to travel smoothly, and the rattling of the movable bracket and the vibration noise can be suppressed. As a result, the sense of quality can be enhanced.

[Brief description of drawings]

FIG. 1 shows the slide device of the present invention, II- of FIG.
A sectional view taken along the line II, FIG. 2 is a cross-sectional view of the bearing member, FIG. 3 is a schematic perspective view showing the mounting position, and FIG. 4 is a movable bracket traveling along a lower guide rail mounted on a fixed bracket. FIG. 5 is a partially cutaway plan view, FIG. 5 is a side view of an automobile carrying out the present invention, and FIG. 6 is a cutaway view similar to FIG. 1 showing a modified example of an elastic member. 1 …… Slide door 9 …… Guide rail 17 …… Guide roller 27 …… Movable bracket 39 …… Coupling shaft 41 …… Fixed bracket 47 …… Bearing member 51a …… Fixed bracket support 51b …… Movable bracket support 53 ...... Elastic member

Claims (1)

[Scope of utility model registration request] 1. A slide device for a slide door that slides while being guided by a plurality of guide rails provided on the vehicle body side, wherein the slide device can run along at least a guide rail located below the vehicle body side. A movable bracket having a guide roller, a fixed bracket rotatably connected to the movable bracket by a connecting shaft mounted on the slide door side, a fixed bracket support portion mounted on the connecting shaft and supporting the fixed bracket, and a movable bracket. A bearing member having a movable bracket support portion that supports the bracket, and an elastic member that is provided between the fixed bracket support portion and the movable bracket support portion of the bearing member and that can extend and contract in the axial direction. A sliding device for a sliding door for an automobile, which is characterized by: