JP4054743B2 - Slider for window regulator - Google Patents

Description

  The present invention relates to an X arm type or wire type window regulator, which is attached to the tip of an arm or a carrier plate and slides along a guide rail.

In general, a window regulator that raises and lowers the window glass of an automobile includes a wire type window regulator that pulls up and down by pulling a carrier plate that supports the window glass with a wire, and a tip of a main arm and a sub arm that are pivotably intersected. There is an X-arm type window regulator that supports the window glass and moves the window glass up and down by rotating the base end of the main arm using a motor and a gear.
In the wire type window regulator, the slider mounted on the carrier plate slides along the guide rail arranged in the vertical direction. In the X arm type window regulator, the slider is mounted on the tip of the main arm and the sub arm. The slider slides along a guide rail disposed in the front-rear direction on the window glass, and a slider mounted on the other end of the sub-arm is disposed in the door body in the front-rear direction. The window glass moves up and down smoothly along a fixed track.

As a slider for a window regulator, a hemispherical part is formed at one end of a support pin, a supporting shaft part is formed at the other end, and a roller is rotatably fitted on the outer periphery of the hemispherical part. (See Patent Document 1).
However, with such a slider, it is easy to rattle in the depth direction of the cross section of the guide rail during sliding, noise is generated as the window glass moves up and down, and the slider is caught by the guide rail, and the window glass is There is a risk that it cannot be moved up and down smoothly. In addition, there is a possibility that a rattling noise may occur due to the opening and closing of the door.

In addition, a hemispherical portion is formed at the tip of the support provided on the carrier plate, and a roller that engages with the guide rail is rotatably fitted on the outer periphery of the hemispherical portion. There is also known a slider in which a buffer member is provided between the two and the movement of the carrier plate in the vehicle body inside and outside is absorbed by the buffer member (see Patent Document 2).
However, in this case, since the buffer member is attached to the tip of the support at the center of the roller, even if the movement of the support itself is absorbed, the roller swings with respect to the support and the guide rail I was worried about getting caught.

Japanese Utility Model Publication No. 2-4021 Japanese Utility Model Publication No. 1-94582

  The problem to be solved by the present invention is to provide a slider for a window regulator that can reliably prevent rattling against a guide rail and that can smoothly move up and down without generating noise.

The window regulator slider of the present invention includes a support shaft portion and a rail engaging member that is mounted on the outer periphery of the tip end portion of the support shaft portion and slidably engages with a guide groove of the guide rail, rail engaging member is a synthetic resin as a material, when viewed from the distal end surface is slightly shorter square than the length of one side width of the guide groove, slightly smaller rather form than the depth of thickness of the guide groove In the front end surface of the rail engaging member, a pair of diagonal positions symmetrical to the center of the front end surface is provided with a fin portion where the front end portion is pressed against the inner surface of the guide groove at a corner portion along the diagonal line. The through holes are formed at positions facing the back of the fin portion of the rail engaging member.

According to the present invention, the fin portion formed on the front end surface of the rail engaging member is pressed against the guide groove of the guide rail to prevent the slider from rattling in the depth direction of the guide groove. Noise is unlikely to occur.
In addition, since the fin portion is provided at a pair of diagonal positions on the front end surface of the rail engaging member, the rail engaging member is not tilted in the depth direction of the guide groove and caught in the guide groove. The window glass moves up and down smoothly.
Furthermore, since the through hole is formed in the rail engaging member so as to face the back of the fin portion, it is possible to simplify the dividing of the resin mold even if the fin portion that is difficult to mold is formed.

Hereinafter, an embodiment which is a slider for an X-arm type window regulator will be described in detail with reference to the drawings.
As shown in FIG. 6, the window regulator according to the present invention includes a main arm 1 and a sub arm 2 that pivotably intersect each other, and the main arm 1 and the sub arm 2 are attached to a door at the intersecting portion.
A sector gear 3 is fixed to one end of the main arm 1, and the sector gear 3 meshes with a pinion gear 5 that is rotationally driven by a motor 4.

A guide rail 6 extending in the front-rear direction of the vehicle body is disposed on the window glass, and another guide rail 7 extending in the front-rear direction of the vehicle body is disposed on the door.
Further, the slider A attached to one end of the sub arm 2 is slidably engaged with the guide groove 7 a of the other guide rail 7, and the slider attached to the other end of the main arm 1 and the sub-therm 2. A is slidably engaged with the guide groove 6 a of the guide rail 6.
When the motor 4 is operated, the pinion gear 5 is rotated, the sector gear 3 meshing with the pinion gear 5 is rotated, and the main arm 1 is rotated around the attachment portion to the door. As a result, while the slider A at the other end of the main arm 1 slides along the guide rail 6, the guide rail 6 is moved up and down, and the sub arm 2 is rotated as the guide rail 6 is moved up and down. The sliders A mounted on the slider slide along the guide rail 6 and the other guide rail 7, respectively.

As shown in FIGS. 1 to 4, the slider A includes a metal support shaft portion 8 and a rail engaging member 9 made of synthetic resin.
The base end portion of the support shaft portion 8 is a small-diameter mounting shaft 10 that is attached to the main arm 1 or the sub arm 2, and a hemispherical portion 11 is formed at the distal end portion of the support shaft portion 8.
Rail engaging member 9, when viewed from the distal end surface, a side length of a guide groove 6a, 7a slightly less square than the width of a thickness of the guide groove 6a, a little smaller rather form than the depth dimension of 7a The

As shown in FIG. 1, a support shaft engagement hole 12 that penetrates from the front end surface to the back surface is formed along the central axis of the rail engagement member 9. An intermediate portion of the support shaft engagement hole 12 is a spherical hole 13 so as to be fitted to the hemispherical portion 11 of the support shaft portion 8, and a tapered hole 14 gradually increases in diameter near the back surface from the spherical hole 13. It has become.
Further, as shown in FIGS. 2 and 3, the outer periphery of the rail engaging member 9 is formed to be slightly smaller on the front end side and the rear surface side, and the rail that slides on the guide grooves 6a and 7a so that the friction does not become excessive. The width of the side surface of the engaging member 9 is narrowed.

As shown in FIG. 1 to FIG. 3, a pair of diagonal portions at the front end surface of the rail engaging member 9 is a low step portion 17, and the low step portion 17 penetrates from the front end surface to the back surface. A hole 15 is formed.
As shown in FIG. 4, a cavity 16 that opens to the back side is formed in the other pair of diagonal portions of the rail engaging member 9.
As shown in FIG. 2, a pair of fin portions 18 projecting along the diagonal line from the inner periphery toward the corner are provided on the pair of diagonal portions on the front end surface of the rail engaging member 9.
These fin portions 18 are integrally projected from the side surface of the low step portion 17 at positions symmetrical with respect to the center of the front end surface of the rail engaging member 9 and are disposed in front of the through hole 15. By providing the through-hole 15 facing the back of the fin portion 18 as described above, even if the fin portion 18 is provided, only two opposite directions are required for resin molding, and therefore the rail engaging member The resin molding die 9 can be simplified and the die can be easily removed.
Further, as shown in FIGS. 1 and 3, the fin portion 18 is inclined so as to move away from the through hole 15 as it approaches the tip, and the tip portion protrudes slightly from the tip surface of the rail engaging member 9. .

As shown in FIG. 1, the hemispherical portion 11 of the support shaft portion 8 is fitted into the spherical hole 13 of the rail engagement member 9, and the support shaft portion 8 is inserted into the support shaft engagement hole 12 of the rail engagement member 9. Install so that it can swing.
Further, as shown in FIG. 5, a small-diameter mounting shaft 10 formed at the proximal end portion of the support shaft portion 8 is inserted into the end portion of the main arm 1 or the sub arm 2, and the distal end thereof is caulked and fixed.
When the rail engaging member 9 is engaged with the guide grooves 6a and 7a of the guide rails 6 and 7, the tip portion of the fin portion 18 protruding from the tip surface of the rail engaging member 9 becomes the guide groove 6a and 7a. Pressed against the back surface.

When the main arm 1 and the sub arm 2 are rotated, the upper and lower surfaces of the rail engaging member 9 and the tip of the fin portion 18 become sliding surfaces with respect to the guide grooves 6a, 7a, and the slider A becomes the guide rails 6, 7 Smoothly slides along.
Moreover, since the fin part 18 is provided in the position symmetrical with respect to the front-end | tip surface center of the rail engaging member 9, and it press-contacts to the inner surface of the guide grooves 6a and 7a, the rail engaging member 9 is a guide. The grooves 6a and 7a do not rattle in the depth direction, and the rail engaging member 9 does not tilt in the depth direction of the guide grooves 6a and 7a and is not caught by the guide grooves 6a and 7a.
In the wire type window regulator, the slider of the present invention can be attached to a carrier plate that supports the window glass.

Sectional drawing of the slider which shows the Example of this invention. The front view of the slider which shows the Example of this invention. The side view of the slider which shows the Example of this invention. The back view of the slider which shows the Example of this invention. The side view of the slider engaged with the guide rail. The front view of the window regulator which concerns on the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main arm 2 Sub arm 3 Sector gear 4 Motor 5 Pinion gear 6 Guide rail 6a Guide groove 7 Other guide rail 7a Guide groove 8 Support shaft part 9 Rail engagement member 10 Mounting shaft 11 Hemispherical part 12 Support shaft engagement hole 13 Sphere Surface hole 14 Tapered hole 15 Through hole 16 Cavity part 17 Low step part 18 Fin part

Claims (1)

And a rail engaging member that is attached to the outer periphery of the tip end portion of the supporting shaft portion and slidably engages with the guide groove of the guide rail. The rail engaging member is made of synthetic resin. , when viewed from the distal end surface is slightly shorter square than the length of one side width of the guide groove, the thickness is slightly rather smaller form than the depth of the guide groove, the distal end surface of the rail engaging members And a pair of diagonal positions symmetrical with respect to the center of the front end surface, and a fin portion where the front end portion presses against the inner surface of the guide groove is provided so as to protrude toward the corner portion along the diagonal line, and the rail engagement A slider for a window regulator, wherein through holes are formed at positions facing the back of the fin portion of the member.

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