JP2556335Y2 - Automotive window regulator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automotive window regulator.

[0002]

2. Description of the Related Art Various types of window regulators which support a window glass attached to a door of an automobile and drive the glass up and down have been proposed and put into practical use.

As one of them, the present inventors have been developing a wire-type window regulator for driving a transmission wire locked on a window glass by a motor to raise and lower the window glass. This type of window regulator has an excellent advantage that the structure can be simplified and that the glass can be easily moved up and down while rotating the glass in a substantially plane.

[0004]

However, according to the conventional window regulator of this type, there is a slight problem in the stability of supporting the window glass, and when the window glass is moved up and down, the glass is slightly rattled. When the window glass is raised and lowered, there is a risk that the window glass may be slightly tilted due to the frictional force from the weather strip acting on the window glass.

An object of the present invention is to provide a wire-type window regulator that eliminates the above-mentioned conventional disadvantages.

[0006]

According to the present invention, a motor supported by an inner panel of a door body having an inner panel and an outer panel, and a motor supported by the inner panel and rotated by the motor. A first drum to be driven, a second drum supported by an inner panel portion rearward in the front-rear direction of the vehicle body with respect to the first drum, and rotationally driven by the motor; and between the inner panel and the outer panel. A first guide roller rotatably supported by a lower portion of a window glass arranged and raised and lowered, and rotatably supported by a window glass portion on the rear side in the front-rear direction of the vehicle body with respect to the first guide roller. Second
A first guide rail fixed to the inner panel, the first guide roller being rotatably fitted therein, and a first guide rail for guiding an ascending and descending wind crow;
A second guide rail fixed to an inner panel portion on the rear side in the front-rear direction of the vehicle body with respect to the guide rail, the second guide roller being fitted in a rotatable manner, and guiding the ascending and descending window glass; A first transmission wire wound around a guide pulley rotatably supported by the inner panel and rotatably supported by the inner panel, and wound around the second drum, and wound around the second drum, In addition, it is wound around a guide pulley rotatably supported by the inner panel, and is locked to a windshield portion on the rear side in the front-rear direction of the vehicle body with respect to a locking portion between the first transmission wire and the windshield. A second transmission wire, and the second drum is moved from the second drum so that the operation speed of the first transmission wire is higher than that of the second transmission wire when the window glass is moved up and down. Suggest automobile window regulator, characterized in that the larger the diameter of the first drum.

[0007]

The first and second transmission wires are operated by the rotation of the first and second drums, and the window glass is raised and lowered while being guided by the first and second guide rails.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, and the above-mentioned disadvantages in a wire type window regulator developed conventionally will be more specifically clarified with reference to the drawings.

FIG. 1 is a view of a rear door of a four-door type automobile and a wind regulator attached thereto as viewed from the inside of the automobile, and a body supporting the door is not shown.

The door body 1 has an inner panel 2 located on the inside of the vehicle and an outer panel 3 located on the outside of the vehicle, and both panels 2 and 3 are integrated at their edges by hemming. In FIG. 1, the inner panel 2 is cut away to clarify a window regulator 4 and a window glass 5 disposed between the panels 2 and 3. Details of the window regulator 4 are as follows.

As shown in FIG. 2, a motor 7 having a gear box 6 is fixedly supported on the inner panel 2, and a worm gear 8 driven by the motor 7 and first and The second worm wheel 9, 9a is accommodated. Each worm wheel 9,
First and second drums 10 and 10a are fixed to the shaft of 9a, respectively, and the first worm wheel 9 is located forward of the second worm wheel 9a in the front-rear direction of the vehicle body. Therefore, the first drum 10 is supported by the inner panel 2 via the gear box 6 and is driven to rotate by the motor 7 as described later. Further, the second drum 10a is supported by a gear box 6 on an inner panel portion on the rear side in the front-rear direction of the vehicle body with respect to the first drum 10, and is driven to rotate by a motor 7 as described later.

The window glass 5 is disposed between the inner panel 2 and the outer panel 3 and is moved up and down as described later. First and second windows are provided below the window glass 5.
A first roller rotatably supporting the guide rollers 11, 11a
The second support brackets 12 and 12a are integrally fixed (see FIG. 3). As described above, the first and second windows are provided below the window glass 5 via the support brackets 12 and 12a.
Are rotatably supported, and the second guide roller 11a is supported by a window glass portion on the rear side in the front-rear direction of the vehicle body with respect to the first guide roller 11.

The inner panel 2 of the door body 1 has a first
And the second guide rail 13a located on the rear side in the front-rear direction of the vehicle body with respect to the guide rail 13 are fixed,
As shown in FIG. 4, the guide rails 13 and 13a have the first and second guide rollers 11 and 11a.
Are fitted in a freely rolling manner, and when the window glass 5 moves up and down as described later, both guide rails 13 and 13a
Guided by

First and second upper and lower guide pulleys 14 and 15 are rotatably supported on the inner panel 2 and second upper and lower guide pulleys 14a and 15a are respectively supported on the inner panel portion on the rear side thereof.

A first transmission wire 16 is wound around the first drum 10 several times as shown in FIG. 2, and one wire portion extending upward away from the drum 10 is connected to the first upper wire. It is wound around a guide pulley 14, and its end is locked to a lower portion of the window glass 5 via a first support bracket 12. The other wire portion extending downward from the first drum 10 is a first lower guide pulley 15
And turns upward again in a different direction, and the end of the first support bracket 1 is attached to the lower portion of the window glass 5.
2 are locked. In this example, as shown in FIG. 3, a stopper 18 is fixed to a pair of ears 17 formed by cutting and raising the first support bracket 12 itself, and a block 19 fixed to each end of the transmission wire 16 is used as a stopper. 1
8 by fitting them into the grooves formed in each of the blocks 8 and hooking each block 19 into the engaging groove 20 of the ear 17.
Each end of the transmission wire 16 is locked to the support bracket 12.

The second transmission wire 16a is wound around the second drum 10a in exactly the same manner as described above, and the second transmission wire 16a is connected to the second upper and lower guide pulleys 14a.
a, 15a, each end of which is engaged with the second support bracket 12a, that is, the lower portion of the window glass 5, in the same manner as shown in FIG.

The portion where the first transmission wire 16 and the second transmission wire 16a are locked to the window glass 5 via the support brackets 12 and 12a is connected to the first locking portion 21 and the second locking wire 21a.
When referred to as the locking portion 21a, the second locking portion 21
“a” is located on the rear side in the front-rear direction of the vehicle body with respect to the first locking portion 21, and a space indicated by D is provided between the locking portions 21 and 21 a. The first and second transmission wires 1
6, 16a are inserted into outer tubes indicated by reference numerals 22, 22a in FIG. 1 and are protected by these tubes. When such outer tubes 22, 22a interfere with the elevating operation of the window glass 5, the tubes 22, 22a may be omitted.

As described above, the window glass 5 moves up and down between the uppermost position shown by the solid line in FIG. 1 and the lowermost position shown by the chain line. , 10a are also stopped, so the window glass 5
Is stopped at any position, the glass 5 is connected to the two transmission wires 16, 16a at the locking portions 21, 21a.
Through the door body 1.

Here, the operation of lowering the window glass 5 from its uppermost position will be described. First, an occupant in the vehicle depresses a switch (not shown). As a result, the motor 7 starts operating, and its rotation is changed to the worm gear 8.
Is transmitted to the first and second drums 10 and 10a via the first and second worm wheels 9 and 9a. The first drum 10 is clockwise in FIG. 1, and the second drum 10a is Each is driven to rotate in the counterclockwise direction in FIG. Thereby, the first and second transmission wires 16, 1
6a operates in the directions indicated by A and B, respectively, so that the window glass 5 descends while being supported at two points at the locking portions 21 and 21a.

When raising the window glass 5, the switch 7 is pressed to rotate the motor 7 in the opposite direction to that described above, so that the first drum 10 is turned counterclockwise and the second drum 10a is turned clockwise. Driving each transmission wire 1
6, 16a are operated in the directions opposite to the arrows A and B, respectively. As a result, the window glass 5 is fixed to the two locking portions 21,
It rises while being supported by 21a.

The window glass 5 moves up and down while drawing a curved trajectory substantially in a plane as indicated by a chain line arrow P. In order to make this possible, the lower portions of the first and second guide rails 13 and 13a are slightly bent relative to the upper portions thereof as shown in FIG. Is larger than the second transmission wire 16a when the window glass 5 is moved up and down.
The operation speed of the transmission wire 16 is increased.

The above-described configuration of the window regulator 4 enhances the support stability of the window glass 5 and prevents the occurrence of rattling when the glass is moved up and down. The window regulator is described with reference to FIG.

The window regulator shown in FIG. 5 has one drum 10, one transmission wire 16 and the like.
The transmission wire 16 is locked to the window glass 5 at one locking portion 21. Instead, the guide rail 13
The upper and lower two guide rollers 11 which are automatically engaged with rolling are provided on a rear guide rail 13b fixed to an inner panel portion on the rear side of the guide rail 13 as shown in FIG.
As shown in the figure, a guide block 26 fixed to the window glass 5 via a bracket 25 is slidably fitted. Even with this configuration, the transmission wire 16 is operated by the rotation of the motor 7, and the window glass 5 can be moved up and down between the uppermost position shown by the solid line and the lowermost position shown by the chain line. One stop 21
At the time of raising and lowering the window glass 5, the glass 5 is liable to rattle in the rotation direction substantially in the plane. In order to suppress this problem, two upper and lower guide rollers 11 fitted to the guide rail 13 are provided so that the window glass 5 does not rattle in the plane.
Since the interval between the two guide rollers 11 cannot be set so large in view of the layout of each element of the window regulator, it is difficult to reliably prevent the window glass 5 from rattling. Also, when the window glass 5 is raised, the pressing point on the glass 5 is only one locking portion 21. Therefore, when the glass is raised to the uppermost position, a weather strip (not shown) attached to the vehicle body Therefore, when the frictional force indicated by the arrow Q in FIG.

However, according to the window regulator 4 shown in FIG. 1, the first and second two front and rear locking portions 2 are provided.
Since the window glass 5 is supported by 1, 21a, when the window glass 5 is raised, the glass receives a lifting force from these two places. For this reason, the support stability of the window glass 5 is enhanced, and there is no possibility that the window glass 5 will rattle in the rotational direction in the plane. Since the interval D between the locking portions 21 and 21a can be at least two to three times the interval between the two guide rollers 11 shown in FIG. 5, the window glass 5 can be reliably supported in a stable state. . Further, when the window glass 5 reaches the uppermost position, there is no danger that the glass 5 will tilt even if it receives a frictional force in the direction of arrow Q from the weather strip.

[0025]

As described above, according to the present invention, the support stability of the window glass can be enhanced, and the backlash and inclination can be prevented.

[Brief description of the drawings]

FIG. 1 is a view of a door provided with a window regulator according to an embodiment of the present invention as viewed from the inside of a vehicle.

FIG. 2 is a perspective view showing a motor and first and second drums.

FIG. 3 is a perspective view showing a first support bracket and elements attached thereto.

FIG. 4 is a cross-sectional view showing a first guide rail and a first guide roller fitted to the first guide rail.

FIG. 5 shows a door with a conventional window glass;
FIG. 2 is a view similar to FIG. 1.

FIG. 6 is a sectional view taken along line XX of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door main body 2 Inner panel 3 Outer panel 4 Window regulator 5 Window glass 7 Motor 10 1st drum 10a 2nd drum 11 1st guide roller 11a 2nd guide roller 13 1st guide rail 13a 2nd guide rail 14 Guide Pulley 14a Guide Pulley 15 Guide Pulley 15a Guide Pulley 16 First Transmission Wire 16a Second Transmission Wire 21 Locking Part

Claims (1)

(57) [Scope of request for utility model registration] 1. A motor which is supported on the inner panel of a door body having an inner panel and the outer panel, the in-
It napaneru is supported on a first drum which is rotated by the motor, the first vehicle body than the drum
It is supported by the inner panel on the rear side in the front-rear direction,
A second drum rotatably driven by a motor, a first guide roller rotatably supported by a lower portion of a window glass disposed between the inner panel and the outer panel and raised and lowered, and the first guide. A second guide roller rotatably supported by a window glass portion rearward in the front-rear direction of the vehicle body with respect to the roller, and the first guide roller fixed to an inner panel and rotatably fitted; A first guide rail for guiding the rising and falling wind crow,
A second guide rail fixed to the inner panel portion on the rear side in the front-rear direction of the vehicle body with respect to the first guide rail, wherein the second guide roller is rotatably fitted, and guides the ascending and descending window glass; A first transmission wire wound around a guide pulley wound around the first drum and rotatably supported by the inner panel and locked at a lower portion of a window glass; and wound around the second drum. The first transmission wire is wound around a guide pulley rotatably supported by the inner panel, and is engaged with a window glass portion on the rear side in the front-rear direction of the vehicle body with respect to a locking portion between the first transmission wire and the window glass. And a second transmission wire stopped when the window glass is moved up and down.
The operation speed of the first transmission wire is higher than that of the ear
Thus, the diameter of the first drum is set to be larger than that of the second drum.
An automotive window regulator characterized by the following: