JPH10227176A - Guide slider for window lift structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate occurrence of abnormal sound, shaking feel, looseness between rails by insert-molding a pivot spherically formed at the head of a blank into synthetic resin-made guide body. SOLUTION: A synthetic resin-made guide body 1 is slidably fitted to the inside of a rail 12 and a pivot 2 is positioned at its center. A steel-made blank 4 knurling-processing the head part is insert-molded to spherical synthetic resin 5 to mold the pivot 2. Furthermore, the pivot 2 is insert-molded to a oil- contained resin-made guide body 1. Driving force from a regulator arm is transmitted to a window glass through the pivot 2, the body 1 and a rail 12. At the time, because the pivot 2 and the body 1 are adhered without any gap, the pivot 2 is driven in proper sliding resistance to the body 1 without looseness, and with regard to the body 1 and the rail 12, elastic parts 7, 8 and a projection 9 are brought into contact with each other to prevent looseness. Thereby smooth movement can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide slider for a window elevating mechanism of an automobile.

[0002]

2. Description of the Related Art A window elevating mechanism for a vehicle has a rail 12 fixed to a lower portion of a window glass 11 as shown in FIG.
A guide roller at the tip of a regulator arm 13 driven by a motor is slidably fitted to the rail 12,
The structure is such that the window glass 11 is raised and lowered. Conventionally, as a guide roller for this window lifting mechanism, FIG.
The structure shown in FIG. In this case, a steel blank 22 is press-fitted into a bottomed cylindrical resin guide 21, and this resin guide 21 is fitted to the rail 12 and used. However, the guide roller for the window elevating mechanism has the following problems.

Since the steel blank 22 is press-fitted after the resin guide 21 is formed, the resin guide 21 is deformed,
A minute gap is easily generated between the resin guide 21 and the steel blank 22. For this reason, the sliding between the two becomes less awkward, and abnormal noise is easily generated. Due to the gap between the resin guide 21 and the steel blank 22, a wobble is likely to occur between the rail 12 and the guide roller. Since the cylindrical resin guide 21 contacts the rail 12 only at the upper and lower two points, play in the vertical direction is likely to occur between the rail 12 and the guide roller.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems and to provide a guide member for a window elevating mechanism which is free from abnormal noise, wobble, and rattling between rails. It was done in.

[0005]

A guide slider for a window elevating mechanism according to the present invention, which has been made to solve the above-mentioned problems, comprises a pivot made by forming a blank head in a spherical shape, and a guide made of synthetic resin. It is characterized by being insert-molded in the main body. The present invention can be embodied in a form in which a pivot formed by insert-molding the head of the blank into a spherical synthetic resin is insert-molded into a guide body made of synthetic resin.

Incidentally, the spherical synthetic resin and the synthetic resin forming the guide body can be embodied as different kinds of synthetic resins having different melting temperatures. It is preferable to use a PBT (polybutylene terephthalate) resin and a polyacetal resin as a synthetic resin forming the guide body. Further, it is preferable that the guide has a rectangular shape having an elastic portion.

Further, the present invention can be preferably embodied in a form in which a pivot formed by integrally forming a blank and its head with the same metal is inserted into a guide body made of polyacetal resin.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred first embodiment of the present invention will be described below. FIG. 1 is a front view of a guide slider for a window elevating mechanism according to the present invention, FIG. 2 is a left side view, and FIG. 3 is a central longitudinal sectional view. As shown in FIG. 1, the guide slider of the present invention comprises a guide body 1 made of a synthetic resin which is slidably fitted inside a rail 12, and a pivot 2 located at the center thereof.

As shown in FIG. 4, the guide slider according to the present invention has a steel blank 4 having a knurled head 3.
Is inserted into a spherical synthetic resin 5 to form a pivot 2
And the pivot 2 is insert-molded into the guide body 1 made of an oil-impregnated resin. This synthetic resin 5
As nylon resin or PBT with high strength and hardness
(Polybutylene terephthalate) resin can be used,
In this embodiment, PBT is used.

As the synthetic resin constituting the guide body 1, a synthetic resin which is not likely to adhere to the spherical synthetic resin 5 of the pivot 2 at the time of molding is selected. When PBT is used as the synthetic resin 5 as described above, the guide body 1 is preferably made of polyacetal resin. It is also preferable to use an oil-containing resin such as an oil-containing polyacetal resin in terms of sliding characteristics. Further, since the head of the pivot 2 which is insert-molded in the guide body 1 is not press-fitted after molding as in the related art, there is no gap at the contact portion between the two. In addition, since the spherical synthetic resin 5 of the pivot 2 and the synthetic resin forming the guide 1 are different resins, the pivot 2 can be smoothly rotated inside the guide body 1.

[0011] As shown in FIG.
The elastic portions 7 and 8 are provided at the center of the upper and lower two sides and the center of the left and right two sides, respectively. These elastic portions 7 and 8 are for preventing the play. The elastic portion 7 prevents the play in the vertical direction of the vehicle and the elastic portion 8 prevents the play in the lateral direction of the vehicle. Also, arc-shaped projections 9 are provided at both ends of the upper and lower sides so that the rail 12 and the arc-shaped projection 9 come into contact when a force is applied.

The guide slider of the present invention thus constructed is incorporated in a window elevating mechanism like a conventional product, and is used for elevating the window glass 11.
The driving force from the regulator arm 13 is transmitted to the window glass 11 via the pivot 2, the guide body 1, and the rail 12, but as described above, the pivot 2 and the guide body 1 are brought into close contact with each other without any gap by insert molding. Therefore, there is no play between the pivot 2 and the guide main body 1, and the pivot 2 pivots with an appropriate sliding resistance with respect to the guide main body 1. Further, since the elastic portions 7 and 8 and the arc-shaped projection 9 are in contact with the guide body 1 made of oil-impregnated resin and the rail 12 to prevent backlash, smooth movement as a whole is possible without generating abnormal noise. .

In addition, in the guide roller of the present invention, since the pivot 2 and the guide main body 1 are in close contact with a constant load, there is an advantage that sliding is smooth and that the guide roller 1 does not easily fall off.

Next, a second embodiment of the present invention will be described. As shown in FIG.
And a spherical head 3a integrally formed of the same metal, for example, stainless steel, and a pivot 2 is formed by insert molding in a guide body 1 made of polyacetal resin. In this embodiment, since the spherical head 3a can be simultaneously processed in the same molding step when manufacturing the blank 4, as in the first embodiment, a nylon resin or a PBT (polybutylene terephthalate) resin is used. Except that the number of steps for insert molding with a synthetic resin can be omitted, the advantages of the first embodiment can be similarly enjoyed.

[0015]

As described above, in the guide slider of the present invention, the pivot 2 having the head of the blank 4 formed in a spherical shape is insert-molded in the guide body 1 made of synthetic resin. There is an advantage that occurrence of abnormal noise, wobble, rattling between the rail 12 and the like is prevented, and smooth movement is possible.

[Brief description of the drawings]

FIG. 1 is a front view of a guide slider for a window elevating mechanism according to the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a central longitudinal sectional view of FIG. 1;

FIG. 4 is a manufacturing process diagram.

FIG. 5 is a central longitudinal sectional view of the second embodiment.

FIG. 6 is an explanatory diagram of a window elevating mechanism.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide main body 2 Pivot 3 Head 3a Spherical head 4 Blank 5 Spherical synthetic resin 7 Elastic part 8 Elastic part 9 Arc projection 11 Window glass 12 Rail 13 Regulator arm 21 Bottom cylindrical resin guide 22 Blank

Continued on the front page (72) Inventor Yoshihiro Murase 1-8-8 Takahashi, Oguchi-machi, Niwa-gun, Aichi Prefecture Inside the Oguchi Plant of Aoyama Seisakusho (72) Inventor Ryuji Utsuno 1-8-8 Takahashi, Oguchi-machi, Niwa-gun, Aichi Prefecture Aoyama Factory Oguchi Factory

Claims (6)

[Claims] 1. A guide slider for a window lifting / lowering mechanism, wherein a pivot having a blank head formed in a spherical shape is insert-molded in a guide body made of synthetic resin. 2. A guide slider for a window elevating mechanism according to claim 1, wherein a pivot made by insert-molding the head of the blank into a spherical synthetic resin is insert-molded into a guide body made of synthetic resin. . 3. The guide slider according to claim 2, wherein the spherical synthetic resin and the synthetic resin forming the guide body are different synthetic resins. 4. The guide slider according to claim 2, wherein the spherical synthetic resin is a PBT (polybutylene terephthalate) resin, and the synthetic resin forming the guide body is a polyacetal resin. 5. The guide slider according to claim 2, wherein the guide body is a square having an elastic portion. 6. A guide slider for a window lifting mechanism according to claim 1, wherein a pivot formed by integrally forming a blank and its head with the same metal is inserted into a guide body made of polyacetal resin.