JPH0443581Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a balance device for a wind regulator that raises and lowers a window glass using a cable, and is used, for example, in a door window of an automobile.

[Prior Art] As a balance device for this type of wind regulator, for example, the present applicant previously proposed Utility Model Application No. 60-103373.
(Utility Model Application Publication No. 11985/1985).

The balance device of this wind regulator is
As shown in Fig. 5, a drum e is pivotally supported in a drum case b fixed to a base plate a by a support shaft d whose one end c is fixed to the base plate a, and an end face f of the drum e is formed on the side of the drum case b. A spiral spring h is housed in the recess g, which applies rotational force to the drum e in a certain direction, and the cables j and k wound around the drum e are biased in the upward direction of the window glass. The other end j of d is fixed to the drum case b.

In such a balance device for a wind regulator, the drum case b is connected to the other end j of the support shaft d.
The drum e is not restrained from moving in the axial direction until the drum e is fixed to the drum case b. It remains open until it is caulked to the other end j of the support shaft d.

Next, the work of assembling the balance device of this wind regulator will be explained.

Fix one end c of the support shaft d to the base plate a,
A spiral spring h whose outer end is engaged with the inner periphery of the recess g pivots the drum e housed in the recess g to the support shaft d. At this time, the inner end of the spiral spring h is engaged with the support shaft d.

Next, the drum e is wound up, but if the drum e is wound up as it is, there is nothing to press the top of the recess g, so the spiral spring h deforms in the axial direction and pops out from the inside of the recess g. In order to prevent this from popping out, the winding is carried out while holding down the top of the recess g, and after winding up the window glass a predetermined number of times, the cable i that pulls the window glass upward is hooked to the outer periphery of the drum e, and the cable i is wound around the outer periphery of the drum e by being rewound again. is wound around. After rewinding, a cable k that is connected to a drive unit (not shown) and that pulls down the window glass is attached to the outer periphery of the drum e. In order to prevent the cable k from coming off the outer periphery of the drum e, it is necessary to attach it to the outer periphery of the drum e at a position where it passes through the inside of the drum case at least once, so before fixing the drum case b. need to be routed.

As described above, the series of operations from winding up to unwinding and cable routing must be carried out while pressing the concave portion g of the drum e in an appropriate manner. lastly,
The other end j of the support shaft d of the drum case b is caulked to the base plate a to complete the assembly work.

[Problems to be solved by the present invention] In the wind regulator balance device as described above, a series of steps from winding to unwinding to cable routing are carried out until the drum case b is finally attached. The work must be carried out while holding down the concave part g of the drum e, and the movement of the drum e in the axial direction is not restrained and is therefore unstable, making assembly difficult and having poor work efficiency. It was hot. Furthermore, as mentioned above, until the drum case b is attached, the drum e and the spiral spring h are in an unstable state, so the work from winding to unwinding and cable routing must be completed in one process. Not only that, but also the drive unit (not shown) connected to the cable k was also assembled at the same time, so there was a problem that the work time was concentrated in this process and the work time was not well balanced with other processes. .

The object of the present invention is to provide a balance device for a wind regulator that solves these problems.

[Means for Solving the Problems] In the wind regulator balance device of the present invention, a drum is pivotally supported by a support shaft whose one end is fixed to the base plate, and an end surface of the drum opposite to the base plate is attached to the drum. Inside the formed recess,
In a balance device for a wind regulator, which houses a spiral spring that applies rotational force to the drum in a certain direction, and biases a cable wound around the drum in the upward direction of the window glass, the other end of the support shaft is A holding plate is provided over a concave portion of the drum housing the spiral spring, and the axial movement of the drum is restrained by the expanding diameter locking portion of the support shaft. By doing so, we are trying to solve the above problems.

[Function] In the balance device for the wind regulator of the present invention, the drum is pivotally attached to the support shaft formed with the enlarged diameter locking portion through the presser plate, so that the drum can move into the recess independently from the drum case. It is possible to prevent the inner spiral spring from jumping out, and the axial movement of the drum is restrained, making it stable. As a result, the drum case can be assembled as appropriate after winding, unwinding, cable routing, etc. have been completed.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

A window regulator 1 shown in FIG. 1 is installed in a door of an automobile to raise and lower a window glass (not shown).

In the window regulator 1, a pair of guide rails 2 and 3 are arranged in parallel in the front and back along the up-and-down direction of the window glass on the door, which is the mounting part, and the upper ends of both guide rails 2 and 3 are aligned with each other, and the lower ends of both guide rails are aligned with each other. are fixed by base plates 4 and 5, respectively. The base plates 4, 5 are fastened to the inner panel of the door with bolts.

Cable 6 that can move vertically along guide rail 2
are routed around guide pulleys 7 and 8 mounted on base plates 4 and 5.

Carrier plates 9, 1 fixed to window glass
0 is slidably fitted into the guide rails 2 and 3, and the carrier plate 9 is fixed to the cable 6.

The cable 6 wound around the guide pulley 8 is inserted into a flexible outer tube 11, and one end of the cable 6 is wound around and locked on the winding drum 21 of the drive section 20.

The other end of the cable 6 wound around the guide pulley 7 is wound around and locked around the outer periphery 31e of a drum 31 of a balance device 30 fixedly provided on the base plate 4.

One end of a cable 60 is wound around the outer periphery 31e of the drum 31 in a direction opposite to that of the cable 6 and is locked therein. The cable 60 is inserted through the flexible outer tube 12, and the other end of the cable 60 is wound around the winding drum 21 in the opposite direction to the cable 6 and locked.

One end of the outer tube 11 is connected to the base plate 5
The plug 5a is fixed to the plug 5a, and the other end is locked by a first holding part 24 provided on the drive part 20, respectively.

One end of the outer tube 12 is a balance device 30
A plug 32a fixed to the base plate 32 of
Therefore, the other ends are respectively locked by the second holding portions 25.

In the drive unit 20, the winding drum 21 is rotatably supported on a base plate 22, the winding drum 21 projects from one side of the base plate 22, and the drive shaft 23 of the winding drum 21 projects from the other side. A manual handle (not shown) or an actuator (not shown) is connected to the drive shaft 23.

In the wind regulator 1 assembled in this manner, when the drive shaft 23 of the drive unit 20 is rotated by a manual handle or an actuator, the cable 6 moves vertically between the guide pulleys 7 and 8, and the carrier The window glass moves up and down via the plate 9.

The drum 31 of the balance device 30 is a spiral spring 3
4 and 35, the cable 6 is biased counterclockwise in FIGS.
8, the window glass can be raised with a relatively light force.

As shown in FIGS. 2 to 4, the balance device 30 includes a drum 31, a base plate 32,
The support shaft 36 of the drum 31, the drum case 33 fixed to the base plate 32, and the spiral spring 3
4, 35, a press plate 37 provided between the drum case 33 and the drum 31, and a shim 38 provided between the drum 31 and the base plate 32.

The drum 31 has a first storage part 31b that stores the spiral spring 34 and a spiral spring 3 separated by a central wall part 31a.
and a second storage section 31c for storing 5.
A through hole 31d into which the support shaft 36 is rotatably fitted is bored in the central wall portion 31a. The outer periphery of the drum 31 has a locking hole 31f in which each end of the cables 6, 60 wound around the outer periphery 31e is locked.
and another locking hole (not shown) are formed.

In order to bias the drum 31 counterclockwise in FIGS. 1 and 2, the spiral spring 34 has its inner end 34a inserted into the engagement groove 36a of the support shaft 36, and its outer end 34a.
4b are respectively engaged with the engagement portions 31h of the drum 31.

Similar to the spiral spring 34, the spiral spring 35 is held within the second housing portion 31c of the drum 31 in order to bias the drum 31 in the counterclockwise direction in FIGS. 1 and 2.

The shim 38 is made of resin and prevents the spiral spring 35 from expanding and contracting and rubbing against the base plate 32 and causing abnormal noise.

The holding plate 37 is made of resin and prevents the spiral spring 34 inside the first storage portion 31b from jumping out to the outside, and has a through hole 37a formed in the center thereof.

The support shaft 36 has a fixing portion 36b formed at one end for fixing to the mounting hole 32b of the base plate 32,
An enlarged diameter locking portion 36c is formed at the other end, and extends from one end to the other end in the axial direction of the outer circumferential portion, and the spiral spring 34
A locking groove 36a is formed which locks with the inner end 34a. Similarly, the inner end of the spiral spring 35 also has a locking groove 3.
It is attached to 6a.

The procedure for assembling the balance device 30 having the above configuration is as follows: from below, the shim 38, the spiral springs 34, 35 are mounted on the base plate 32 in which the mounting hole 32b is bored
Stack the drum 31 containing the and the presser plate 37 in that order,
Insert the fixed portion 36b side of the support shaft 36 into the through hole 37a of the presser plate 37 from the presser plate 37 side, and then
While the inner end 34a of the spiral spring 35 is engaged with the engagement groove 36a, the inner end of the spiral spring 35 is also engaged with the engagement groove 36a.
a through the through hole 31d of the drum 31, insert the fixing part 36b into the mounting hole 32b of the base plate 32, and fix it by caulking.

The drum 31 is now attached to the support shaft 3 via the presser plate 37.
Movement in the axial direction is restricted by the enlarged diameter locking portion 36c of No. 6. Further, the presser plate 37 is attached to the first storage section 3 of the drum 31.
It is provided above the opening of the first storage portion 31b in a manner that presses down the spiral spring 34 inside the first storage portion 31b.

Next, the drum 31 is wound up a predetermined number of times in the counterclockwise direction in FIGS.
By unwinding the cable 6 in the counterclockwise direction, the cable 6 is wound around the outer periphery 31e of the drum 31. Furthermore, the drive section 2
The cable 60 connected to 0 is locked in another locking hole (not shown) of the drum 31, and the cable routing work is completed.

Finally, attach the drum case 33 to the base plate 32.
The assembly of the balance device 30 is completed. An escape hole 33a is formed in the drum case 33 at a portion where the enlarged diameter locking portion 36c and the drum case 33 interfere.

Note that the drum case 33 has an outer circumference 31e of the drum 31.
This is provided to prevent the cables 6 and 60 wound around the coil from coming off, and has nothing to do with preventing the spiral spring 34 from popping out, which is the gist of the present invention.

As an effect of this embodiment, the presser plate 37 can be moved by the shim 38.
Since it is made of resin of the same quality, even if the spiral spring 34 expands and contracts and rubs against the presser plate 37, it has the effect of preventing abnormal noise. Furthermore, since the support shaft is a shaft with an enlarged diameter locking portion (a shaft with a flange), caulking with the drum case 33 is no longer necessary, resulting in a reduction in the number of machining steps.

[Effects of the Invention] As detailed above, according to the balance device for a wind regulator of the present invention, the support shaft having the enlarged diameter locking portion pivotally attaches the drum via the holding plate, thereby achieving the following effects. The drum is independent of the drum case.
This prevents the spiral spring from popping out inside the recess, and the axial movement of the drum is restrained and stabilized, so during a series of operations from winding to unwinding to cable routing, the spiral spring can be prevented from jumping out of the recess of the drum. There is no need to keep holding it down, making the work easier and improving the assembly workability. In addition, after winding, the cable that pulls the window glass upwards is attached to the outer periphery of the drum, and it can be assembled into a unit in the rewound state, so it is possible to separate the work process for assembling the cable connected to the drive part, and to use other parts. It also has the effect of improving the work time balance with the process.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing a wind regulator, FIG. 2 is a plan view showing a balance device, and FIG. 3 is a perspective view showing a wind regulator.
The figures are a sectional view taken along the line -- in FIG. 2, FIG. 4 is an exploded perspective view showing a balance device, and FIG. 5 is a longitudinal sectional view showing a conventional balance device for a wind regulator. 1... Wind regulator, 6, 60... Cable, 30... Balance device, 31... Drum, 31b... First storage section (recess), 31e...
Outer periphery, 32... Base plate, 33... Drum case, 34, 35... Spiral spring, 36... Support shaft, 36c... Expanded diameter locking portion, 37... Presser plate.

Claims (1)

[Claims for Utility Model Registration] A drum is pivotally supported by a support shaft whose one end is fixed to a base plate, and a rotational force in a certain direction is applied to the drum in a recess formed on the end surface of the drum opposite to the base plate. In a balance device for a wind regulator, which houses a spiral spring to provide energy and biases a cable wound around the outer periphery of the drum in the upward direction of the window glass, the other end of the support shaft has an enlarged diameter locking part. A presser plate is provided over the concave portion of the drum in which the spiral spring is accommodated, and the axial movement of the drum is restrained by the enlarged diameter locking portion of the support shaft. Balance device for wind regulator.