JPH0326218Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a wire guide device for a wire drum window regulator used for raising and lowering window glasses such as door glasses and rear side glasses of automobiles.

BACKGROUND OF THE INVENTION Among wind regulators, a wire drum wind regulator using a wire and a drum is disclosed in, for example, Japanese Utility Model Application Publication No. 17473/1983. To explain this with reference to FIG. 6, a glass holder 2 is attached to a guide rail 1 housed in the door body so as to be able to slide up and down, and a door glass (not shown) is fixed to this glass holder 2. Then, attach the door glass to the guide rail 1 via the glass holder 2.
It is designed to go up and down along the A main pulley 3 is pivotally supported at the upper end of the guide rail 1, and a wire 6, which is wound up and rewound by a drum 4 rotated by a regulator handle 5, is suspended from the main pulley 3. The glass holder 2 is connected to one of the wires 6 which is hung on the main pulley 3 and reversed, and the door glass is raised and lowered as described above by winding and unwinding the wire 6 by the drum 4. be. A wire guide member 7 made of a resin material is fitted and fixed to the lower end of the guide rail 1 in order to route a wire 6 to be wound around the drum 4 and unwound along the guide rail 1. This wire guide member 7 is integrally provided with a wire introduction part 8 into which the wire 6 is introduced by fitting and fixing the end of the outer tube 6a of the wire 6 on the side on which the drum 4 is disposed, and also on one side of the guide rail 1. a first arcuate guide part 9 that directs the wire 6 toward one side of the main pulley 3 on the wire introduction side of the main pulley 3; and a second arcuate guide that deflects the wire 6 reversed to the other side of the main pulley 3 toward the wire introduction part 8 side. The portion 10 is integrally molded.

Problems to be Solved by the Invention The above-mentioned first arcuate guide portion 9 is integrally molded immediately after the wire introduction portion 8, and the sliding contact length of the wire 6 from the wire introduction portion 8 to the first arcuate guide portion 9 is is relatively short, so the sliding resistance of the wire 6 does not become so large.However, since the second arcuate guide section 10 is far from the wire introduction section 8, the wire 6 of the second arcuate guide section 10 is tangentially moved. Since the sliding contact length from the sliding side edge to the wire introduction part 8 becomes significantly large, the sliding resistance of the wire 6 becomes very large on the second arcuate guide part 10 side, and the regulator handle 5 There were problems in that not only did the operating force become large, but it also tended to interfere with the smooth raising and lowering of the door glass.

SUMMARY OF THE INVENTION Therefore, the present invention provides a wire guide device for a wire drum regulator, which has a simple structure, can reduce the operating force of the regulator, and can smoothly raise and lower the window glass.

Means for solving the problem In the present invention, a main pulley is provided at one end of the guide rail on which the glass holder is slidably arranged, and the main pulley is introduced from one side of the other end of the guide rail. In this structure, a wire which is wound and unwound by a drum is hung thereon, and a glass holder is connected to this wire so that the glass holder is raised and lowered by winding and unwinding of the wire by the drum. The guide pulley is pivotally supported at the other end of the guide rail, and has an arcuate guide portion that deflects the wire led out from the drum side to one side of the main pulley, and has an arcuate guide portion provided between the guide rail and the guide pulley. a base part formed with a back plate part which is connected to the seat part and which holds the guide rail; Deflection is led out to the drum side.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, with the same reference numerals assigned to the same parts as in the conventional structure.

1 to 3, a main pulley 3 is arranged at the upper end of a guide rail 1 on which a glass holder 2 is slidably arranged, and a drum is introduced into the main pulley 3 from one side of the other end of the guide rail 1. A wire 6 to be wound up and unwound by the drum 4 is suspended, and a glass holder 2 is connected to the wire 6.
The basic structure in which the door glass is raised and lowered via the glass holder 2 by winding and unwinding the wire 6 is the same as that of the prior art.

Here, at the lower end of the guide rail 1, there is provided an arcuate guide part 11 that pivotally supports the guide pulley 12 and deflects the wire 6 led out from the drum 4 side to one side of the main pulley 3. 1 and a guide pulley 12; and a base portion 14 formed with a back plate portion 21 having a slit 16 facing and facing the seat portion 20 and holding the guide rail 1 therebetween. have. The guide pulley 12 has a spindle 13 directly caulked to the guide rail 1 and is rotatably arranged, while the arcuate guide part 11 has a wire introduction part 15 on one side, and has a seat part 20 and a back plate part. Immediately after the wire introduction part 15, it is integrally molded into the base part 14 which has a slit 16 formed by 21 and into which the lower end of the guide rail 1 is fitted. A notch 17 for escape of the support shaft 13 is formed on the side surface of the base portion 14 on the side where the guide pulley 12 is disposed. Also,
A groove 18 is formed at the bottom of the notch 17 to receive the end of the support shaft 13 and to prevent the base 14 from slipping out.

According to the apparatus of the above embodiment, the wire 6, which is reversed by the main pulley 3, is deflected toward the wire introduction part 15 at the lower end of the guide rail 1 by the guide pulley 12 which is pivotally supported by the guide rail 1. For,
Even if the dimension from the wire deflection section to the wire introduction section 15 is widened, the sliding resistance of the wire 6 at the guide pulley 12 portion is small because the guide pulley 12 rotates as the wire 6 is wound up and unwinded. Therefore, the regulator operation force can be reduced to improve operability, and the door glass can be raised and lowered smoothly. Further, the guide pulley 12 can be sub-assembled to the guide rail 1 together with the main pulley 3, and the wire guide section 11 can be easily retrofitted by fitting the base section 14 to the end of the guide rail 1. It has the advantage of being able to be placed.

In the embodiment shown in FIGS. 4 and 5, the base portion 14
A rib 19 is concentrically protruded around the notch 17 of the guide pulley 12. Even when an excessive input is applied to the guide pulley 12, the rib 19 prevents the pulley 12 from falling down, and the side surface of the pulley 12 and the guide rail are 1
This is to avoid surface contact with the material and to prevent an increase in sliding resistance. In addition, in this embodiment, instead of fixing the support shaft 13 by caulking, a retaining head 13a is formed at the end of the support shaft 13.
A mounting hole 1a into which the head 13a can be inserted is formed in the guide rail 1, followed by a long hole 1b into which the support shaft 13 can be inserted.
After inserting the head 1 into the mounting hole 1a, slide it toward the long hole 1b to prevent the guide rail 1 from coming off in the plate direction.
By receiving and locking the support shaft 13, the support shaft 13 is prevented from coming off in the side direction of the guide rail 1, thereby improving the workability of installing the guide pulley 12.

Effects of the Invention As described above, according to the present invention, the device is introduced from one side of the other end of the guide rail, is deflected by the arcuate guide part, and is hung on the main pulley at one end of the guide rail.
Since the reversed wire is deflected toward the wire introduction side by the guide pulley at the other end of the guide rail, even if the dimension from the wire deflection part to the wire introduction part of the guide pulley is widened, the wire winding, Since the guide pulley rotates as it rewinds, there is no sliding resistance of the wire at the guide pulley, which reduces the regulator operating force and improves operability, and allows the windshield to move up and down smoothly. This has a great practical effect.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a wind regulator equipped with the device of the present invention, Fig. 2 is an exploded perspective view of the same embodiment of the device, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a perspective view of a wind regulator equipped with the device of the present invention. FIG. 5 is a perspective view showing a different example of the present invention, FIG. 5 is a sectional view taken along the line - in FIG. 4, and FIG. 6 is a perspective view of a wind regulator equipped with a conventional device. 1...Guide rail, 2...Glass holder, 3
...Main pulley, 4...Drum, 6...Wire, 11...Wire guide section, 12...Guide pulley.

Claims (1)

[Scope of utility model registration request] A main pulley is disposed at one end of the guide rail on which the glass holder is slidably disposed, and a wire that is introduced from one side of the other end of the guide rail and is wound and rewound by the drum is hung on this main pulley. At the same time, connect a glass holder to this wire,
In the structure in which the glass holder is moved up and down by winding and unwinding the wire by the drum, a guide pulley is pivotally supported at the other end of the guide rail, and the wire led out from the drum side is connected to the main pulley. A seat part that has an arc-shaped guide part that is deflected to one side and is interposed between the guide rail and the guide pulley, and a back plate part that is connected to face the seat part and that clamps the guide rail are formed. 1. A wire guide device for a wire drum wind regulator, characterized in that the wire wrapped around the main pulley is deflected and guided toward the drum by the guide pulley.