JPH11131902A - Window regulator - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable a window glass to be always smoothly moved up and down even if a sliding member is inclined together with the window glass. SOLUTION: A sliding member 17 has a flexible first slider 20 sliding on a bottom surface 16a of a guide rail 16, and a flexible second slider sliding on one side surface 16c of the guide rail 16.
A slider 17d is provided, and each of the sliders 20, 1
Urging member 1 for urging 7d in the direction of each surface 16d, 16c
8a and 18b are provided, and the sliding surface of the first slider 20 on the bottom surface 16a (16b) of the guide rail 16 and the sliding surface 17f of the sliding member 17 on the upper surface 16d of the guide rail 16 are: The sliding member 1d is formed in an arc shape in the sliding direction with the symmetrical positions at the vertices c and d, and the sliding surface of the second slider 17d on one side surface 16c of the guide rail 16 and the sliding member 1
7 slide surface 1 to the other side surface 16c of the guide rail 16
7e is formed in an arc shape in the sliding direction with the symmetrical positions at the vertices a and b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window regulator capable of always moving up and down a window glass smoothly.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, for example, as a window regulator for an automobile, a front channel and a rear channel 3 provided on a door 1 slide a front end and a rear end of a window glass 4. While holding it freely,
The lower end of the window glass 4 is fixed to a sliding member (carrier plate) 6 guided by a guide rail 5 provided between each of the channels 2 and 3, and a wire 8 of a motor (or a manual operation handle) 7 is used. There is one in which the sliding member 6 is moved up and down to raise and lower the window glass 4 (see Japanese Utility Model Laid-Open No. 63-71383).

In the above-described window regulator, in order to effectively prevent rattling of the window glass in the front-rear direction and in the thickness direction, the present applicant employs a guide rail attached to a door as shown in FIG. 5, a sliding member 6 slidably guided by the guide rail 5, and a carrier plate 9 attached to the sliding member 6 to hold the window glass 4.
A first flexible slider 10 that slides on the bottom surface 5a of the guide rail 5 and a second flexible slider 11 that slides on one side surface 5c of the guide rail 5 are provided. A window regulator provided with biasing members 12 and 13 for biasing the sliders 10 and 11 in the directions of the surfaces 5a and 5c has been proposed (see Japanese Patent Application No. 8-241155).

In this window regulator, the first slider 10 of the sliding member 6 is urged by the urging member 12 to slide on the bottom surface 5a of the guide rail 5 so that the sliding member 6 is guided by the guide rail. 5 is pressed against the upper surface 5b.
The window glass 4 does not rattle in the thickness direction. In addition, the second slider 11 of the sliding member 6 is urged and slid on the one side surface 5c of the guide rail 5 by the urging member 13, so that the sliding member 6 is moved to the other side of the guide rail 5. Side 5
Since the window glass 4 is pressed against d, an effect that the window glass 4 does not rattle in the front-back direction can be obtained.

[0005]

However, if there is a difference in sliding resistance between the front channel 2 and the rear channel 3 when the window glass 4 moves up and down, the window glass 4 is inclined and the sliding member 6 of the guide rail 5 is tilted. The sliding resistance increases rapidly, and in the worst case, the sliding member 6 may not be able to slide.

As a cause of this, as shown in FIG. 6B, since the second slider 11 has an arc shape, it comes into contact with one side surface 5c of the guide rail 5 at an arc-shaped vertex a. The side surface 6a of the moving member 6 is the other side surface 5d of the guide rail 5.
In addition, since the straight line connecting these contact points a and b 'is inclined at an angle of θ degrees in order to make contact with the flat surface part b' offset from the vertex a, the sliding member 6 is inclined together with the window glass 4, This is because the side surface 6a of the sliding member 6 bites into the other side surface 5d of the guide rail 5 in a wedge shape.

Similarly, as shown in FIG. 6 (c), the first slider 10 contacts the bottom surface 5a of the guide rail 5 at a flat vertex c, and the upper surface 6b of the sliding member 6 is Since the straight line connecting these contact points c and d 'is inclined at an angle of θ to contact the upper surface 5b at a flat surface portion d' offset from the vertex c, the sliding member 6 is inclined together with the window glass 4. Thereby, the upper surface 6b of the sliding member 6 bites into the inner upper surface 5b of the guide rail 5 in a wedge shape.

The present invention has been made in order to solve the above-mentioned problem. Even if the sliding member is inclined together with the window glass, the window glass is devised so as not to bite into each surface of the guide rail in a wedge shape. It is an object of the present invention to provide a window regulator capable of always moving up and down smoothly.

[0009]

In order to solve the above-mentioned problems, the present invention provides a guide rail attached to a door,
A sliding member slidably guided by the guide rail; and a carrier plate attached to the sliding member to hold the window glass. The sliding member slides on the bottom surface of the guide rail. A flexible first slider and a flexible second slider that slides on one side surface of the guide rail are provided, and biasing members bias each slider in the direction of each surface. While the member is provided, the sliding surface of the first slider to the bottom surface of the guide rail and the sliding surface of the sliding member to the upper surface of the guide rail are circles in the sliding direction whose apex is a symmetric position. The sliding surface of the second slider on one side of the guide rail and the sliding surface of the sliding member on the other side of the guide rail have an apex at a symmetrical position. A window regulator characterized by being formed in an arc shape in the sliding direction. It is intended to provide.

According to the present invention, each sliding surface of the sliding member that slides on each surface of the guide rail and each sliding surface of the first and second sliders have the symmetrical positions as vertices. By forming the sliding member along with the window glass in any direction, the sliding surfaces of the sliding member and the sliding surfaces of the first and second sliders are formed by the guide rail. The surfaces of the guide rails are always in contact with each other without being offset, so that there is no possibility that the surfaces of the guide rail will bite into each other.

According to a second aspect of the present invention, when the bottom surface and the upper surface of the guide rail are formed in an arc shape following the curvature of the window glass, the sliding surface of the first slider and the sliding surface of the first slider are formed. The sliding surface of the member is preferably formed in an arc shape with a smaller curvature than the bottom and top surfaces of the guide rail.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. The parts having the same configuration and operation as those of the prior art shown in FIG.

As shown in FIG. 1, the guide rail 16 provided on the door 1 has a bottom surface 16a, a concave bottom surface 16b recessed at the center of the bottom surface 16a, and side surfaces 16c rising from both sides of the bottom surface 16a. , 16c and this side 1
Upper surface 16 bent inward from each end of 6c, 16c
d and 16d. This guide rail 16
As shown in FIG. 3B, the bottom surface 16a and the top surface 16d are formed in an arc shape following the curvature of the window glass 4.

The sliding member 17 made of synthetic resin, which is slidably guided by the guide rail 16, is a window glass 3.
Rising portion 19a of the carrier plate 19 holding the
Base part 1 between a pair of upper and lower mounting parts 17a, 17a for molding and mounting 19a (see FIGS. 2 and 4)
7c, a flexible second slider 17d that slides on one side surface 16c of the guide rail 16;
A sliding surface 17e that slides on the other side surface 16c and a sliding surface 17f that slides on the upper surface 16d of the guide rail 16 are formed.

As shown in FIG. 3 (a), the second slider 17d and the sliding surface 17e have a symmetrical position at the vertex (contact point).
The sliding surface 17f is formed in an arc shape in the sliding direction having an apex (contact point) d, as shown in FIG. 3B. I have.

A second bow-shaped spring plate 18b made of metal is inserted into a concave portion 17g formed along the second slider 17d formed on the base portion 17c of the sliding member 17 to thereby form the second spring.
Due to the spring plate 18b, the second slider 17d comes into contact with one side surface 16c of the guide rail 16 by spring force and slides.

A first slider 20 made of synthetic resin is disposed on a base portion 17c of the sliding member 17 on the bottom surface 16a side of the guide rail 16, and the first slider 20 has Hook holes 17h, 17h of base 17c
hook portions 20a, 20 to be inserted and locked from direction a
a are formed, and on both sides of the hook portions 20a, 20b, first slider portions 20b, 20b that slide on the concave bottom surface 16b of the guide rail 16 are formed, respectively. As shown in FIG. 3B, each of the first sliders 20b, 20b is also formed in an arc shape in the sliding direction having a vertex (contact point) c. Vertex c
And the vertex d of the sliding surface 17f are set at symmetrical positions.

The base portion 17c of the sliding member 17 and the first
Between the slider 20 and the first bow-shaped spring plate 1 made of metal
8a, the first spring plate 18a allows the first slider portions 20b, 20b to slide on the concave bottom surface 16b of the guide rail 16 by spring force.

The second slider 17d and the sliding surface 17e of the sliding member 17 are connected to both side surfaces 16c, 1 of the guide rail 16.
6c is straight, the shape may be an arc shape that does not make flat contact. However, the first slider portions 20b and 20b of the first slider 20 and the sliding surface 17f are formed on the bottom surface of the guide rail 16. 16a and upper surface 16d are window glass 4
Is formed in an arc shape following the curvature of the lower surface 16a and the upper surface 16d.

With the above configuration, the first slider portions 20b and 20b of the first slider 20 of the sliding member 17 contact the concave bottom surface 16b of the guide rail 16 by the spring force of the first spring plate 18a. The sliding surface 17f of the sliding member 17 is pressed against the upper surfaces 16d and 16d of the guide rail 16 by the reaction force, so that the window glass 4 does not rattle in the thickness direction together with the sliding member 17.

Also, one side surface 16 of the guide rail 16
c, the second slider 17d of the sliding member 17 comes into contact with the spring force of the second spring plate 18b, and the sliding surface 17e of the sliding member 17 presses the other side surface 16c of the guide rail 16 by the reaction force. Therefore, the window glass 4 does not rattle in the front-rear direction together with the sliding member 17.

On the other hand, the concave bottom surface 16b of the guide rail 16
The sliding surfaces 17e, 17f, the second slider 17d, and the first slider portion 20b of the sliding member 17, which slides on both side surfaces 16c, 16c and the upper surfaces 16d, 16d, respectively have symmetrical positions at the vertices (contact points). ) Since they are formed in an arc shape of a to d,
Regardless of the direction in which the sliding member 17 is tilted together with the window glass 4, the arc-shaped sliding surfaces 17e, 17
f, the second slider 17d and the first slider portion 20b are connected to the respective surfaces 16b, 16c, 16c, 16d, 1 of the guide rail 16.
6d comes into contact without offset.

Therefore, as in the prior art, the sliding member 17
Of each of the sliding surfaces 17e and 17f of the guide rail 16
Since there is no danger of cutting into 6c and 16d in a wedge shape,
The lifting and lowering of the window glass 4 becomes smooth.

[0024]

As is clear from the above description, in the window regulator of the present invention, the respective sliding surfaces of the sliding members and the respective sliding surfaces of the first and second sliders are set in symmetrical positions. Since it is formed in the shape of an arc with the apex, each sliding surface of the sliding member always comes into contact with each surface of the guide rail without offset regardless of the direction in which the sliding member is tilted together with the window glass. As a result, there is no danger that the guide rail will bite into each surface of the guide rail, so that the window glass can always be raised and lowered smoothly. Further, a separate member for preventing the inclination of the sliding member is not required, and the sliding member and the sliding element need only be slightly modified, so that the cost is low.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a sliding member of a window regulator of the present invention.

FIG. 2 is a cross-sectional view corresponding to line AA in FIG.

3 (a) is a plan view, FIG. 3 (b) is a side view, and FIG. 3 (c) is a sectional view corresponding to line BB in FIG.

FIG. 4 is a perspective view of a main part of the carrier plate.

FIG. 5 is a front view of a conventional window regulator.

6A and 6B are sliding members of a window regulator according to the prior art, where FIG. 6A is an exploded perspective view, FIG. 6B is a plan view, and FIG.
Is a side view.

[Explanation of symbols]

 Reference Signs List 1 door 4 window glass 16 guide rail 16a bottom surface 16b concave bottom surface 16c side surface 16d top surface 17 sliding member 17d second slider 17e, 17f sliding surface 18a, 18b spring plate 19 carrier plate 20 first slider 20b first Slider part a to d apex (contact point)

Claims (2)

[Claims] A guide rail attached to the door;
A sliding member slidably guided by the guide rail; and a carrier plate attached to the sliding member to hold the window glass. The sliding member slides on the bottom surface of the guide rail. A flexible first slider and a flexible second slider that slides on one side surface of the guide rail are provided, and biasing members bias each slider in the direction of each surface. While the member is provided, the sliding surface of the first slider to the bottom surface of the guide rail and the sliding surface of the sliding member to the upper surface of the guide rail are circles in the sliding direction whose apex is a symmetric position. The sliding surface of the second slider on one side of the guide rail and the sliding surface of the sliding member on the other side of the guide rail have an apex at a symmetrical position. A window regulator characterized by being formed in an arc shape in the sliding direction. . 2. The bottom surface and the upper surface of the guide rail are formed in an arc shape following the curvature of the window glass, and the sliding surface of the first slider and the sliding surface of the sliding member are: 2. The window regulator according to claim 1, wherein the guide rail is formed in an arc shape with a smaller curvature than the bottom surface and the top surface.