JPH1193506A - Sliding member for window regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability by preventing the dispersion of the rocking force of a support shaft to a slider and obviating looseness between a sliding member for a window regulator and a rail, to which the sliding member is fitted, in the sliding member for the window regulator consisting of the slider, the support shaft and a cushioning member. SOLUTION: The sliding member 80 composed of a slider 81, a support shaft 82 and a cushioning member 83 is constituted in an approximately square-shaped front shape made up of a main body section 81a, in which the slider 81 is insert- molded of a synthetic resin material to the spherical section 82a of the support shaft 82 and corner sections 81b two-color formed of an elastomer to notched sections at the four corners of the main body section 81a. The cushioning member 83 is formed in two colors of the elastomer to a mounting hole 82c section on the end face of the spherical section 82a of the support shaft 82 at the same time as the formation of the corner sections 81b, the corner sections 81b are fitted slidably to a rail 70 under a compressed and elastically deformed state, and the head section 83a of the cushioning member 83 is brought into contact elastically onto the vertical surface 70c of the rail 70 under the state and looseness is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding member of a window regulator for a vehicle, that is, a window regulator of an X-arm type or a single-arm type, which is attached to a tip portion of an arm and is attached along a lower edge of a window glass. The present invention relates to a sliding member slidably fitted in a guide rail provided.

[0002]

2. Description of the Related Art As a vehicle window regulator,
For example, as shown in FIG. 3, a main arm 1 having a gear 2 attached to a base and a sliding member 8 attached to a distal end, and sliding members 8 and 8 attached to the main arm 1 so that a central portion is rotatable at both ends. The main arm 1 is attached to a base plate 4 fixed to a door inner panel by a shaft 5 so that a sliding member 8 of the main arm 1 and one sliding member 8 of the sub arm 3 are attached. Window glass 10
And the other slide member 8 of the sub arm 3 is slidably fitted on a fixed rail 9 attached to the door inner panel, and the base plate 4 is slidably fitted on the guide rail 7 provided on the lower edge of the base plate 4. By rotating the pinion 6 mounted on the windowpane, the main arm 1 swings up and down around the shaft 5 via the gear 2 meshing with the pinion 6, and the sub arm 3 swings up and down with the rotation. A so-called X-arm type window regulator in which the 10 is moved up and down is generally used.

A so-called single-arm type window regulator in which the sub-arm 3 and the fixed rail 9 are omitted from the X-arm type window regulator and the window glass is moved up and down only by vertically swinging the main arm 1 is also known. It is commonly used.

In the above, conventionally, as the sliding member 8,
As shown in FIG. 4, one end has a roller-shaped slider 8a and a spherical portion press-fitted into a spherical hole formed in the center of the slider 8a. Or a three-part assembly comprising a support shaft 8b fixed by caulking to 3 and a plug-shaped buffer member 8c press-fitted into a central hole recessed in the distal end surface of the spherical portion of the support shaft 8b. It is generally done. The slider 8a is fitted on the channel-shaped guide rail 7 or the fixed rail 9, and the slider 8a slides on the lower surfaces 7a and 9a of the rail 7 or 9 with the vertical swing of the arm 1. The head of the cushioning member 8c slides on the vertical surfaces 7c, 9c of the rails 7 or 9 at that time, so that the a of the support shaft 8b with respect to the slider 8a.
The rails 7 and 9 are prevented from slipping out in the direction of the arrow.
Is to minimize backlash in the thickness direction.

[0005]

The conventional sliding member 8 described above.
In the above, the spherical hole formed at the center of the slider 8a is formed by forcibly removing a spherical male mold after molding the slider 8a, and the spherical hole of the support shaft 8b is formed in the spherical hole. Since the fitting is performed by press-fitting, the error in the interference between the spherical hole and the spherical portion is relatively large, and the swinging force of the support shaft 8b with respect to the slider 8a is too large or too tight to move. There is a problem that the variation is large.

The slider 8a, the support shaft 8b, and the cushioning member 8
c is separately manufactured and assembled, so that the dimensional accuracy varies greatly, and the clearance c between the head of the cushioning member 8c and the vertical surfaces 7c, 9c of the rails 7, 9 varies, or the rail 7 , 9, upper surface 7b, 9b and slider 8
There is a problem that the clearance b between the first and second a may be too large to cause judder and abnormal noise when the window glass is raised and lowered.

Further, since the slider 8a slides on the lower surfaces 7a and 9a of the rails 7 and 9 in line contact with each other, a load is concentrated on the line contact portion, and the slider 8a is moved by the line contact. There is also a problem that the part may be crushed or broken.

An object of the present invention is to solve the above conventional problems.

[0009]

SUMMARY OF THE INVENTION The present invention provides a slider which is slidably fitted on at least a rail attached to a window glass side, and a spherical portion which is swingably connected to the slider. A support shaft having at one end a mounting portion for mounting to a window regulator arm by caulking or the like, and a buffer member fixed to a mounting hole recessed in an end surface of a spherical portion of the support shaft. In the sliding member consisting of:
The support shaft consists of a main body part formed by insert molding with a synthetic resin material on the spherical part, and a notch part at four corners of the main body part with a corner part formed by two colors of another synthetic resin material or rubber material. The corner portion is swelled at least below and above the lower and upper sides of the main body, and the lower and upper swelling portions are compressed and elastically deformed into the rail. By being configured to be slidably fitted, there is no variation in the swinging power of the support shaft with respect to the slider, and there is no backlash between the upper and lower surfaces of the rail and the slider. The load is not concentrated on a part of the part, and the durability can be improved.

[0010] Furthermore, by simultaneously forming the two colors of the corner portion, the buffer member is formed of the same synthetic resin material or rubber material as the corner portion in the mounting hole portion of the end portion of the spherical portion of the support shaft. The play between the head of the buffer member and the vertical surface of the rail can be eliminated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a view showing a first embodiment of the present invention. Reference numeral 80 denotes an arm of an X-arm or single-arm window regulator (for example, corresponding to the main arm 1 or the sub-arm 3 in FIG. 3). The sliding member 80 includes a slider 81 having a substantially square (for example, square or rectangular) front shape, a support shaft 82, and a cushioning member 83. .

The support shaft 82 has a spherical portion 82a at the tip and an arm (for example, the main arm 1 in FIG. 3) at the other end.
Or an arm corresponding to the sub-arm 3), which has a mounting portion 82b for fixing by caulking or the like, and a mounting hole 82c for a cushioning member 83 is formed in the center of the end face of the spherical portion 82a. Is done.

The slider 81 comprises a main body 81a in which four corners of a square are cut out in a stepped manner, and a corner part 81b which integrally fills the four corners of the main body 81a. Then, after the main body portion 81a made of a resin material such as polyacetal resin or nylon resin is insert-molded in the spherical portion 82a of the support shaft 82, subsequently, the notch portions at the four corners of the main body portion 81a and the spherical portion 82a are formed. Is formed in two colors with a synthetic resin material having high strength and rubber-like elasticity in a wide temperature range from a low temperature to a high temperature such as an elastomer (thermoplastic polyetherester elastomer). , The corner portion 81b and the cushioning member 83 are integrally formed to form the sliding member 80. In this example, the notch portions at the four corners of the main body portion 81a are formed in a step shape, and the outer peripheral portion of the corner portion 81b is formed in the main body portion 8a.
Thin belt-like portion 81c made of the same synthetic resin material as 1a
This shows an example in which the corner portion 81b and the main body portion 81a are firmly and integrally connected to each other to form an integral slider 81 by adopting the structure surrounded by.
In addition, instead of the synthetic resin material such as the elastomer or the like, a two-color rubber material is used to form corner portions 81b at notch portions at four corners of the main body portion 81a and mounting holes 82c of the spherical portion 82a.
And the buffer member 83 may be integrally formed.

The dimension H between the upper and lower sides of the main body 81a of the slider 81 is configured to substantially match the dimension H between the upper and lower sides of the rail 70, and the corner 81b is slightly smaller than each side of the main body 81a. When fitted to the channel-shaped rail 70, the upper and lower sides of the main body portion 81 a substantially contact the lower surface 70 a and the upper surface 70 b of the rail 70, and the corner portion 81 b is slightly The lower surface 70a and the upper surface 70b of the rail 70 in a state of being elastically deformed in the vertical direction.
And a head 8 which is elastically contacted with and has a chevron section of the cushioning member 83.
The central portion of 3a is configured to be slightly compressed and elastically deformed to be in elastic contact with the vertical surface 70c of the rail 70.

The rail 70 is, for example, a rail corresponding to the guide rail 7 or the fixed rail 9 in FIG.

FIG. 2 shows a second embodiment of the present invention. FIG. 1 shows a stepped notch and a belt-like portion 81c.
In the example of FIG. 2, instead of the step-shaped notch portion and the belt-like portion in FIG. 1, the main body portion 81a and the corner portion 81b are firmly connected to each other.
A thin flange-like portion 81d having a through hole 81e is integrally formed in the notch at each of the four corners, and the corner 81b is formed in the notch by two-color formation of a synthetic resin material such as an elastomer or a rubber material. When formed, the flange portion 81d becomes the core of the corner portion 81b, and the through hole 81e is formed.
An example is shown in which the corner portion 81b and the main body portion 81a are securely connected to each other by being filled with a synthetic resin material such as an elastomer or a rubber material, thereby forming a firm integrated slider 81. . 2, the configuration other than the above is the same as the configuration shown in the first embodiment in FIG. 1, and the same reference numerals as those in FIG. 1 denote the same parts as in FIG.

As shown in the examples of FIGS. 1 and 2, the main body portion 81a of the slider 81 is insert-molded on the spherical portion 82a of the support shaft 82, so that the spherical portion 82a and the main body portion 81a into which the spherical portion 82a fits. The interference with the central spherical hole is always constant, and the fluctuation of the swinging power of the support shaft 82 with respect to the slider 81 is completely eliminated.

Further, the notch portions at the four corners of the main body portion 81a and the mounting holes 82c formed in the spherical portion 82a of the support shaft 82 are formed in two corners such as synthetic resin material such as elastomer or rubber material to form the corner portion 81b. And the cushioning member 83, it is possible to stabilize the bulging amount of each of the sides of the main body portion 81a of the corner portion 81b, the protrusion amount of the head portion 83a of the cushioning member 83, and the like. 81b and the cushioning member 83 are fitted to the rail 70 in a state where they are slightly compressed and elastically deformed, so that the space between the slider 81 and the upper surface of the rail 70 and the head 83a of the cushioning member 83 and the vertical surface of the rail 70 are formed. There is no backlash between the window glass and the window glass 70c, and problems such as generation of judder and abnormal noise when the window glass is raised and lowered are completely eliminated.

Further, the corners 81b at the four corners of the slider 81 having a substantially square front shape are formed on the lower surface 70a of the rail 70.
Slides in a state of elastic contact with the upper surface 70b and the main body 81a.
Since the lower side and the upper side are in sliding contact with the lower surface 70a and the upper surface 70b of the rail 70, the load does not concentrate on one place, and there is no fear that a part of the slider 81 may be bent or broken for a long time. Can withstand enough.

Further, if the slider 81 has a structure having a substantially square frontal shape as shown in the illustrated embodiment, it can be easily inserted into the channel-shaped rail 70, and the length of one side of the slider can be improved. Can be used as it is as a slider of a window regulator already equipped in a conventional vehicle by matching the diameter of a roller-shaped slider having a conventional circular front shape, which is very advantageous. .

[0022]

As described above, according to the present invention, in the sliding member of the window regulator including the slider, the support shaft and the buffer member, the swinging force of the support shaft with respect to the slider is extremely simple. And eliminates backlash between the rails, eliminating the occurrence of judder and abnormal noise when moving the windowpane up and down, as well as improving the durability of the sliding member. Combined with the low cost, can bring a great effect in practical use.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention;
(A) is a front view of the sliding member, (B) is a cross-sectional view taken along line BB of (A), and (C) is a cross-sectional view taken along line CC of (A), showing a state of being fitted to the rail.

FIG. 2 shows a second embodiment of the present invention.
(A) is a front view of the sliding member, (B) is a BB sectional view of (A), and (C) is a CC sectional view of (A).

FIG. 3 is a front view showing an example of a vehicle window regulator to which the present invention is applied.

4A and 4B show an example of a conventional sliding member, in which FIG. 4A is a front view of the sliding member, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main arm 2 Gear 3 Sub arm 4 Base plate 5 Axis 6 Pinion 7 Guide rail 8, 80 Sliding member 9 Fixed rail 10 Window glass 70 Rail 70a Lower surface 70b Upper surface 70c Vertical surface 81 Slider 81a Main body 81b Corner 81c Belt shape Part 81d Flange part 81e Through hole 82 Support shaft 82a Spherical part 82b Mounting part 82c Mounting hole 83 Buffer member 83a Head

Claims (4)

[Claims] A sliding member of a window regulator adapted to raise and lower a window glass by swinging an arm up and down, wherein the sliding member is slidably fitted on at least a rail attached to the window glass side. A support shaft having, at one end, a spherical portion that is swingably coupled to the slider, and a mounting portion at the other end for mounting to the arm by swaging or the like; A sliding member comprising a shock-absorbing member fixed to a mounting hole recessed in an end surface of the portion, wherein the slider is inserted into a spherical portion of a support shaft by a synthetic resin material; The main body is formed in a substantially square front shape including a notch at four corners of the main body and a corner formed with two colors of another synthetic resin material or rubber material, and the corner is at least from the lower side and the upper side of the main body. Bulging downward and upward, and downward and upward A sliding member for a window regulator, wherein a swollen corner portion is slidably fitted in the rail in a state of being compressed and elastically deformed. 2. A sliding member for a window regulator according to claim 1, wherein when two corners are formed of another synthetic resin material or rubber material in the cutouts at the four corners of the main body, At the same time, the other synthetic resin material or rubber material is used to form a buffer member by forming two colors in the mounting hole recessed in the end face of the spherical portion of the support shaft, and the slider is fitted to the rail. A sliding member for a window regulator, wherein a head having a chevron-shaped cross section of the buffer member is configured to be in elastic contact with a vertical surface of the rail. 3. The sliding member for a window regulator according to claim 1, wherein the notch in the main body of the slider is formed in a stepped shape, and the notch in the stepped shape is formed in a stepped shape.
A sliding member for a window regulator, characterized in that the outer peripheral portion of the color-formed corner portion is surrounded by a thin belt-shaped portion made of the same synthetic resin material as the main body portion. 4. A sliding member for a window regulator according to claim 1, wherein a notch portion of the main body of the slider has a thin flange-like portion having a through-hole integrally formed thereon. In a state where the corner portion is formed in two colors in the notch portion, the flange portion becomes the core portion of the corner portion, and the synthetic resin material or the rubber material forming the corner portion is filled in the through hole, A sliding member for a window regulator, wherein the main body and the corner are integrally connected.