JP2004150060A - Guide pulley and wind-regulator equipped with the guide pulley - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide pulley capable of ensuring bearing strength of a pulley, at the same time, cutting down costs of mounting work and increasing working efficiency. <P>SOLUTION: The guide pulley comprises a guide body having a slit section required to be put on the flat end section of a mounted member and an introduction section inserting a laying inner cable therein, the pulley set along one partition of partitions formed in both sides of the slit section, an insertion hole formed in both partitions and a pulley shaft inserted in the hole of the pulley and, at the same time, a neck section required to be fitted to the U-shaped slit formed in the flat end section of the mounted member is formed on the circumference of the pulley shaft. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a guide pulley and a window regulator provided with the guide pulley. More specifically, the present invention relates to a guide pulley used for a window regulator fixed in a door panel of an automobile, for example, and a window regulator provided with the guide pulley.
[0002]
[Prior art]
The window regulator includes a carrier plate for supporting the window glass, a guide rail for guiding the carrier plate to move up and down, an inner cable routed vertically from the carrier plate, and an end portion of the guide rail. And a rotary drive unit for operating the inner cable (see Patent Document 1).
[0003]
The guide pulley is rotatably attached to the guide rail so as to guide the movement of the inner cable when the direction is changed, and to reduce a resistance loss portion when transmitting the inner cable. In mounting the guide pulley, first, the shaft hole of the pulley is positioned in the pulley shaft insertion hole formed in the guide rail, and then the pulley is arranged on the guide rail. Next, the pulley shaft is inserted into the pulley shaft insertion hole and the shaft hole, and the tip of the pulley shaft projects from the back surface of the guide rail. Next, the tip of the pulley shaft is swaged to a guide rail.
[0004]
[Patent Document 1]
Japanese Patent No. 3119762 [0005]
[Problems to be solved by the invention]
However, since such a caulking process requires the use of a riveting device, there is a problem that the equipment cost is high. In addition, this caulking structure of the guide pulley requires a caulking work process, and if the caulking portion of the pulley shaft is small, the supporting strength of the pulley is reduced. Is reduced.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a guide pulley and a window regulator including the guide pulley, which can ensure the supporting strength of the pulley, reduce the mounting cost and improve the work efficiency. With the goal.
[0007]
[Means for Solving the Problems]
The guide pulley of the present invention is formed on both sides of the slit main body, which has a slit portion for mounting on the flat end of the member to be mounted and an introduction portion for inserting an inner cable to be routed. Among the partition walls, a pulley is arranged along one of the partition walls, an insertion hole formed in each of the partition walls, and a pulley shaft inserted into the hole of the pulley. A neck portion for fitting into a U-shaped slit formed at a flat end of the mounting member is formed.
[0008]
A window regulator provided with a guide pulley of the present invention includes a carrier plate supporting a window glass, a guide rail for guiding the carrier plate to move up and down, and an inner cable routed vertically from the carrier plate, A window regulator comprising: a guide pulley provided at an end of the guide rail; and a rotary drive unit for operating the inner cable, wherein the guide pulley has a slit for mounting on the end of the guide rail. A guide body having a section and an introduction section through which the inner cable is inserted; a pulley arranged along one of the partitions formed on both sides of the slit section; and an insertion formed on both the partitions. A hole and a pulley shaft inserted into the hole of the pulley. The outer periphery of the shaft, characterized in that formed by the neck portion for fitting in the U-shaped slit formed at the end of the guide rail formation.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a guide pulley and a window regulator provided with the guide pulley of the present invention will be described with reference to the accompanying drawings.
[0010]
As shown in FIGS. 1 to 5, a window regulator according to an embodiment of the present invention includes a carrier plate (not shown) for supporting a window glass, and a guide rail 1 for guiding the carrier plate up and down. An inner cable 2 routed vertically from the carrier plate, a guide pulley 3 provided at an end of the guide rail 1, and a rotation driving means (not shown) for operating the inner cable 2. It is configured. The guide rail 1 is fixed to a door panel. Further, as the rotation driving means, an actuator composed of a wire drum capable of automatically circulating the inner cable 2 and an electric motor or a winding drum circulating the inner cable 2 with an operation handle can be used. . A guide slit 4 and a flange 5 are formed at the end of the guide rail 1 for guiding the insertion of the guide pulley 3 and preventing rotation after the guide pulley 3 is mounted. In addition, a U-shaped slit 6 for fitting a neck portion 21 of the pulley shaft 10 described later is formed in the end portion. The shape of the slit 6 and the neck portion 21 may be square or oval to stop the rotation of the pulley shaft 10. Further, in the present embodiment, in order to absorb the manufacturing error of the guide rail 1 and the guide pulley 3, that is, the dimensional error, and to secure the positioning of the slit 6 and the neck portion 21, the guide portion is provided at the opening of the slit 6. Although the guide 7 is formed, the guide 7 may be omitted.
[0011]
The guide pulley 3 is composed of a guide body 8 attached to the guide rail 1 from a parallel direction, a pulley 9 having a U-shaped groove on the outer periphery, and a pulley shaft 10 rotatably supporting the pulley 9. It is configured.
[0012]
The guide body 8 has a slit portion 11 to be attached to the end of the guide rail 1 and an introduction portion 12 into which the outer casing 2a is inserted. Partition walls 13 and 14 are formed on both sides by the slit portion 11. . Insertion holes 13a and 14a for inserting the pulley shaft 10 are formed in the partition walls 13 and 14, respectively. The pulley 9 is arranged along the partition 13 among the partitions 13 and 14. The other partition 14 has a guide portion 15 inserted into the guide slit 4 and a guide groove 16 into which the flange 5 is inserted.
[0013]
The pulley shaft 10 is formed by processing an annular groove 20 between a head 17 for retaining, a large-diameter rotary support 18, a small-diameter rotary support 19, and both rotary supports 18, 19. It is constituted by a neck portion 21 for preventing the falling off. The pulling shaft 9 can receive the force that the pulley 9 tends to come off due to the tension of the inner cable 2. Further, a force for the guide body 8 to come off due to the reaction force of the outer casing 2a is received at a portion where the pulley shaft 10 and the insertion hole 14a of the guide body 8 are fitted.
[0014]
In the present embodiment, in order to securely fix the guide pulley 3 to the guide rail 1, a protrusion cut and raised a predetermined distance from the end face of the guide rail 1 (a portion near the maximum pushing portion of the guide pulley 3). A coupling structure is adopted in which a rectangular-shaped engaging portion 32 elastically fitted into the base 31 is formed on the guide main body 8.
[0015]
In the present embodiment, as shown in FIGS. 4 and 5, first, after the pulley 9 is arranged on the side of the guide pulley 8, the pulley shaft 10 is inserted into the insertion holes 13 a, 14 a of the partition walls 13, 14 and the pulley 9. The guide pulley 3 is assembled by inserting it into the hole 9a. Then, as shown in FIG. 6A, the guide pulley 3 is pushed horizontally with its guide portion 15 and guide groove 16 (see FIG. 5) along the guide slit 4 and the flange 5 of the guide rail 1. . Further, as shown in FIG. 6B, after the tip of the engaging portion 32 is brought into contact with the projection 31, it is deformed, and the engaging portion 32 is fitted into the projection 31 as shown in FIG. 1. At the same time, the neck 21 of the pulley shaft 10 is fitted into the slit 6 of the guide rail 1. As a result, assembling of the guide pulley 3 and the guide rail 1 is completed, and as shown in FIG. 3, the slit 6 of the guide rail 1 is formed by the large-diameter rotary support 18 and the small-diameter rotary support 19. Since the pulley shaft 10 is sandwiched, the pulley shaft 10 is prevented from coming off.
[0016]
In the present embodiment, since the pulley and the pulley shaft can be set on the pulley body and attached to the guide rail at the same time, if the guide pulley composed of the pulley body, the pulley, and the pulley shaft is assembled in the previous step, Since assembly to the guide rail is completed in one process, the assembly process can be simplified.
[0017]
Further, since the supporting strength of the pulley is determined by the shape and dimensions of the pulley shaft, it is possible to omit the caulking process management and the subsequent guarantee as in the related art.
[0018]
Also, when it is necessary to disassemble the guide pulley 3 from the guide rail 1 at the time of maintenance, after releasing the tension of the inner cable 2, the engaging portion 32 is elastically deformed to release the engagement with the projection 31, Then, the guide pulley 3 can be easily disassembled by pulling it out horizontally with respect to the guide rail 1.
[0019]
Note that the guide pulley in the present invention is not limited to being used for a window regulator, but may be appropriately applied to any attached member having a flat end.
[0020]
【The invention's effect】
As described above, according to the present invention, the pulley support strength can be easily secured by the shape and dimensions of the pulley shaft. In addition, since the pulley shaft is formed with a neck portion that prevents the guide rail from slipping off, it is possible to assemble only by fitting the guide pulley into the slit of the guide pulley, thereby achieving a reduction in mounting work cost and an improvement in work efficiency. it can.
[Brief description of the drawings]
FIG. 1 is a plan view showing a guide pulley for a window regulator according to an embodiment of the present invention.
FIG. 2 is a rear view showing the guide pulley of FIG. 2;
FIG. 3 is a sectional view taken along line II of FIG. 1;
FIG. 4 is an exploded view of the guide pulley of FIG.
FIG. 5 is a side view of the guide pulley of FIG. 1;
FIG. 6 is a diagram illustrating a procedure for attaching a guide pulley.
[Explanation of symbols]
1 Guide Rail 2 Inner Cable 2a Outer Casing 3 Guide Pulley 4 Guide Slit 5 Flange 6 U-Shaped Slit 7, 15 Guide Part 8 Guide Body 9 Pulley 9a Hole 10 Pulley Shaft 11 Slit Part 12 Introducing Parts 13, 14 Partition 13a, 14a Insertion hole 16 Guide groove 17 Head 18 Large-diameter rotary support 19 Small-diameter rotary support 20 Annular groove 21 Neck 31 Projection 32 Engagement

Claims (4)

A guide body having a slit for mounting on a flat end of the mounted member and an introduction portion for inserting an inner cable to be routed, and one of the partitions formed on both sides of the slit; And a pulley shaft inserted into the holes of the partition walls and a pulley shaft inserted into the holes of the pulleys. A guide pulley formed with a neck portion for fitting into a U-shaped slit formed in the guide pulley. The guide pulley according to claim 1, wherein the guide body is formed with an engagement portion that is elastically fitted into a projection cut and raised by the attached member. A carrier plate supporting the window glass, a guide rail for guiding the elevation of the carrier plate, an inner cable routed vertically from the carrier plate, and a guide pulley provided at an end of the guide rail. A window regulator comprising: a rotary drive unit for operating the inner cable, wherein the guide pulley has a slit for mounting on an end of the guide rail and an introduction unit for inserting the inner cable. A guide main body, a pulley disposed along one of the partitions formed on both sides of the slit portion, an insertion hole formed in the both partitions, and a pulley shaft inserted into the hole of the pulley. And at the outer periphery of the pulley shaft, at the end of the guide rail. U-shaped window regulator which neck portion for fitting in the slit is formed. 4. The window regulator according to claim 3, wherein the guide body is formed with an engaging portion which is elastically fitted into a projection cut and raised by the guide rail.

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