JPH0117570Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a cable winding device for winding and unwinding a cable onto a drum having a spiral winding groove.

"Prior art" As a conventional cable winding device, for example,
There is something like the one shown in the figure.

That is, a drum 2 is pivotally supported on a housing 1, and cables 3a, 3 are inserted into spiral cable winding grooves 2a, 2b formed on both sides of the outer peripheral surface of the drum 2.
b is wound, and cables 3a and 3b are
The cables are guided by guide tubes 1a and 1b fixedly attached to the housing 1, and are extended into the cable winding grooves 2a and 2b of the drum 2, with the tip end pulled into the inside of the drum 2 and fixed to the drum 2.

``Problems to be solved by the invention'' However, in such a conventional cable winding device, the guide tubes 1a and 1b are fixed, so the cable winding grooves are fixed as the cables 3a and 3b are wound up and unwinded. 2a, 2b and cables 3a, 3b
If the angle changes and the angle changes significantly, the cables 3a and 3b will rub against the side walls of the cable winding grooves 2a and 2b, making an abnormal noise. There was a problem in that the side walls of the grooves 2a and 2b were worn, resulting in reduced durability.

The present invention was created by focusing on these conventional problems, and is a cable winding system that solves the above problems by allowing the cable to be wound up or unwound straight into the winding groove of the drum. The purpose is to provide equipment.

``Means for Solving the Problems'' The gist of the present invention for achieving the above purpose is to provide a cable winding device that winds and unwinds a cable on a drum having a spiral winding groove on its circumference. In the apparatus, a guide member is supported in a housing that rotatably supports the drum, facing the peripheral surface of the drum and movable along the axis of the drum, and a part of the guide member is attached to the winding groove of the drum. The cable winding device is characterized in that the guide member is provided with a guide groove which is slidably fitted into the guide member and which guides the cable in the direction in which the cable is fed into and taken out of the winding groove.

``Operation'' Since the guide member guides the cable straight into the cable winding groove of the drum, the cable is prevented from riding on or rubbing against the side wall of the cable winding groove.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 4 show an embodiment of the present invention.

As can be seen in FIG. 4, this embodiment is applied to a window regulator 10 for an automobile.
The window regulator 10 has a guide rail 1
1, a carrier plate 12 is fitted in such a way that it can be raised and lowered, and a cable 20 for raising and lowering the carrier plate 12 is routed above and below the guide rail 11 and is extended to a drive section 13, which is connected to a cable winding section. It comprises a device 30 and a motor 14 for driving it.

As shown in FIGS. 1 to 3, the cable winding device 30 includes a housing 33 consisting of a base plate 31 and a cover 32. Inside the housing 33 is a drum 40 for winding the cable 20 via a pivot 34. It is pivotally supported.

The drum 40 has spiral winding grooves 41 and 42 at both ends of its outer peripheral surface, one end 21 of the cable 20 is wound around the winding groove 41, and the other end of the cable 20 is wound around the winding groove 42. The side 22 is wound around, and the one end side 21 has a lead-in hole 4 bored in the peripheral wall of the drum 40.
3 into the drum 40 and solidified therein, and the other end 22 is also drawn into the drum 40 from the lead-in hole 44.
0 and is solidified inside.

Looking at the circumferential surface of the drum 40, the pivot 34 of the drum 40
A first guide member 50a and a second guide member 50b are disposed corresponding to the winding grooves 41 and 42 so as to be movable in the axial direction. The first guide member 50a and the second guide member 50b have the same structure except that their positional relationship is reversed.The first guide member 50a will be explained below as a representative, and the second guide member 50b will be described in detail. A detailed explanation will be omitted, and similar parts will be described with the same reference numerals.

The first guide member 50a is connected to the winding groove 4 of the drum 40.
1, and a guide groove 52 facing substantially tangentially to the drum 40, the outer end of the guide groove 52 widening to receive the cable 20. , the inner end of the guide groove 52 is the winding groove 41
is coming.

A connecting pin 53 is provided at the rear of the first guide member 50a.
The relay member 54 is pivotally connected via the relay member 54.
is pivotally supported via a pivot pin 56 to a support bracket 55 fixed to one side wall of the cover 32 of the cable winding device 30. Thereby, the first guide member 50a is supported so as to be movable along the circumferential surface of the drum 40 in the axial direction of the pivot shaft 34 of the drum 40.

Each end side 21, 22 of the cable 20 has a winding groove 4.
1 and 42, the guide tube 3 passes through the guide grooves 52 and 52 of the first guide member 50a and the second guide member 50b, and is fixed to the housing 33 of the cable winding device 30.
5 and 36 to the upper part of the guide rail 11.

Next, the action will be explained.

When the motor 14 is energized by operating an on/off switch (not shown), the drum 40 is rotated, each end of the cable 20 is fed in and out, the carrier plate 12 is raised and lowered along the guide rail 11, and the carrier plate 12 is moved up and down along the guide rail 11. A window glass (not shown) fixed to the plate 12 moves up and down. Considering the case where the one end side 21 of the cable 20 is fed in and out, since the winding groove 41 has a spiral shape, the drum 40 moves as the drum 40 rotates.
The position where it moves in and out changes.

Since the engaging leg portion 51 of the first guide member 50a is fitted into the winding groove 41, when the drum 40 rotates, the fitting position is displaced, and the entire first guide member 50a is fitted onto the circumferential surface of the drum 40. move along. The movement of the first guide member 50a is synchronized with the rotation of the drum 40, and the inner end of the guide groove 52 is connected to the winding groove 4 fitted at that time.
Always facing direction 1.

Therefore, the first guide member 50a moves along the circumferential surface of the drum 40 together with the one end side 21 of the cable 20 being fed in and out, and the one end side 21 is always in the guide groove 52.
will be guided to. The direction of the guide groove 52 is almost the same as that of the drum 4.
Since the cable 20 is oriented in the tangential direction of 0, the cable 20 can be stably fed in and out.

The second guide member 50b is also moved and displaced in the same way as the first guide member 50a, and the movement is similar to that of the first guide member 50a.
Since it is the same as the moving direction of the first guide member 50
Even if the guide member a and the second guide member 50b are arranged close to each other, they do not interfere with each other.

Note that the structure for movably supporting the guide member is not limited to the above embodiment, and it goes without saying that other known structures can be adopted.

"Effect of the invention" According to the cable winding device according to the invention, the cable can be wound around the drum from a certain stable direction.
In addition, since the cable can be unwound, the cable does not rub against the side wall of the winding groove, making noise, or the cable does not wear out or come off. The durability of equipment that employs the device can be improved.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a vertical sectional view of a cable winding device, and FIG.
The figure is an exploded perspective view of the vicinity of the drum, Figure 3 is a side view, Figure 4 is a front view of a window regulator using a cable winding device, and Figure 5 is a longitudinal sectional view of a conventional cable winding device. It is. 20... Cable, 30... Cable winding device, 40... Drum, 41, 42... Winding groove, 5
0a...first guide member, 50b...second guide member, 51...engaging leg portion, 52...guide groove.

Claims (1)

[Scope of utility model registration request] In a cable winding device that winds and unwinds a cable on a drum having a spiral winding groove on its circumference, a housing that rotatably supports the drum is provided with a housing that rotatably supports the drum.
A guide member is supported movably along the axis of the drum facing the circumferential surface of the drum, a part of the guide member is slidably fitted into a winding groove of the drum, and a part of the guiding member is slidably fitted into a winding groove of the drum. A cable winding device characterized in that the guide member is provided with a guide groove for guiding the cable in a direction in which the cable is fed into and taken out of the cable.