KR20130132104A - Wire-type window regulator - Google Patents

Abstract

The present invention relates to a wire type window regulator for opening and closing a door window by a wire and, more specifically, to a wire type window regulator including: an inner panel which has a penetration hole and is arranged inside a door; a rotatable drive shaft in which one end, the other end, and a connection part connecting the one end with the other end are included, a handle connection part combined with a handle at the one end is arranged, and at least one part of the connection part penetrates the penetration hole of the inner panel; a drum which is arranged in the opposite side of the handle connection part with the inner panel between the drum and the handle connection part and winds or unwinds the wire according to the rotation of the drive shaft by being combined with the other end of the drive shaft; and a balance spring which is arranged in the opposite side of the drum with the inner panel between the balance spring and the drum and is able to add a load to the rotation of the drive shaft.

Description

Wire-type window regulator

The present invention relates to a wire-type window regulator, and more particularly, to a wire-type window regulator that separates the balance spring from the drum and installs it on the opposite side of the inner panel to prevent the wire from bending due to lack of space due to the balance spring. .

In general, a door is provided in a vehicle to open and close the door. This window is configured to open and close the door while ascending and descending. On the other hand, the inside of the door is provided with a regulator which is a mechanism for raising and lowering the window of the vehicle.

Such a regulator is classified into an arm type and a wire type, and the wire type is a method of elevating a window using a wire as the power means rotates a drum on which the wire is wound.

Such a window must have a different rotational force for rotating the drum winding the wire when the window is raised and a rotational force for rotating the drum winding the wire when the window is lowered. For example, when the window is raised, the rotational force for rotating the drum should be increased in consideration of the window's own weight. If the window is lowered, the rotational force for rotating the drum should be lowered in consideration of the window's own weight. In particular, when the window is lowered separately, when the window is raised, a lot of rotational force is required to rotate the drum. A balance spring is installed to minimize the difference in the drum rotational force during the rise and fall.

The balance spring is installed on the drive shaft connected to the handle, and is operated by winding and releasing the drive shaft. In other words, when the balance spring is wound, the play of the balance spring is suppressed to prevent the play of the play.In the case of the lift, the balance spring is released by the compression force of the balance spring accumulated at the time of descent to assist the lifting force of the window. This reduces the force of the person turning the motor or the handle.

The window regulator according to the prior art is as shown in Figs.

The window regulator 100 includes a guide rail 110 extending in the vertical direction of the door, a carrier plate 120 sliding along the guide rail 110, and having a window fixed thereto, and coupled to the carrier plate 120. And a wire (not shown) for lifting or lowering the carrier plate 120, the drum 140 wound around the wire (not shown), and rotatably supported by the inner panel 180, and the drum 140. It includes a drive shaft 150 for rotating, a balance spring 160 installed on the drum 140 and connected to the drive shaft 150 and a handle 170 connected to the drive shaft 150.

In such a window regulator, when the handle 170 is rotated, the drive shaft 150 rotates with the handle 170 to rotate the drum 140, and thus, the wire (not shown) is wound or unwound while the carrier plate 120 is rotated. To raise or lower. The window W coupled to the carrier plate 120 moves together with the carrier plate 120 to open or close the door. At this time, when the window W is lowered, the balance spring 160 is wound and accumulates elastic energy. When the window W is raised, the balance spring 160 wound up is released and the rotation force of the driving shaft 150 is released. To help.

The window regulator according to the prior art has the following problems.

First, as the balance spring is installed on the drum, the thickness from the inner panel increases, so that the upper end of the balance spring may contact the window. As a result, the drum including the balance spring is generally positioned low. When the drum is positioned low, the wires are not horizontally positioned as shown in FIG. 2 and are curved while forming a constant curvature around the drum. When the wire is located in a curved state as described above, the wire is not naturally moved due to constant tension on the wire in the tube.

In addition, the balance spring is coupled to the bent portion of the center portion is fitted into a single slot formed at the end of the drive shaft, there is a disadvantage that it is not easy to accurately position in a single slot. In particular, the space inside the door in which the drum is installed is so narrow that the operator must install a balance spring on the drum that does not have sufficient sia, which may prevent the balance spring from being correctly inserted into a single slot. Due to this problem, there is a problem in that it takes a long time and the work is cumbersome to mount the balance spring on the drum side.

In addition, the bent portion of the balance spring inserted into the slot of the drive shaft is integrally connected to the spirally wound spring. As the diameter of the drive shaft is narrow, the angle between the bent portion and the spirally wound spring is sharply bent, which may easily break the connection portion. There is a disadvantage.

Republic of Korea Patent Publication No. 2003-0006799

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a wire type window regulator capable of efficiently disposing a space and eliminating curvature of wires.

In addition, an object of the present invention is to provide a wire-type window regulator that can simplify the assembly of the balance spring and minimize the breakage of the balance spring.

Wire-type window regulator of the present invention for achieving the above object, in the wire-type window regulator for opening and closing the door window by a wire,

An inner panel having a through hole formed therein and disposed in the door;

One end, the other end and the connecting portion for connecting the one end and the other end, the one end is provided with a handle connecting portion coupled to the handle and at least a portion of the connecting portion rotatable drive shaft passing through the through hole of the inner panel;

A drum disposed on the opposite side of the handle coupling portion with the inner panel interposed therebetween and coupled to the other end of the drive shaft to wind or unwind the wire in accordance with the rotation of the drive shaft; And

A balance spring disposed on the opposite side of the drum with the inner panel therebetween and capable of adding a load to the rotation of the drive shaft.

In the wired window regulator,

The balance spring,

It is disposed between the inner panel and the handle,

It is made of a coil wound in a spiral form may be provided with a bent portion in the center.

In the wired window regulator,

Further comprising a connection portion is fixed to the drive shaft so as not to rotate relative to the drive shaft and provided with a slot to which the bent portion is fitted,

The bent portion may be rotated together with the drive shaft as the bent portion is fitted into the slot.

In the wired window regulator,

Wherein the connecting portion comprises:

A boss having a cylindrical shape and fixedly coupled to the drive shaft; And

It is composed of a plurality of fitting parts protruding outward from the boss portion and spaced apart from each other along the circumferential direction,

The slot may be formed between fitting portions adjacent to each other.

In the wired window regulator,

The connection part may be made of a synthetic resin material.

In the wire type window regulator according to the present invention, since the balance spring is installed on the opposite side of the drum with the inner panel interposed there is no fear of obstructing the movement path of the window moving up and down on the drum side, it is not necessary to position the drum as a whole. Accordingly, there is an advantage that the curvature of the wire can be minimized.

In addition, the wire-type window regulator according to the present invention has a merit that the balance spring is coupled to a plurality of slots provided in the connection part, so that the assembly is easy and the breakage of the balance spring can be minimized.

1 is a perspective view of a window regulator according to the prior art.
Fig. 2 is a side view of Fig. 1; Fig.
3 is a sectional view taken along the line III-III of FIG. 1;
4 is a perspective view obliquely from above of a window regulator according to an embodiment of the present invention;
5 is a perspective view obliquely from below of the window regulator of FIG.
Fig. 6 is an exploded perspective view of Fig. 5; Fig.
7 is a view showing a view from below with the top cover removed from the window regulator of FIG.
8 is a cross-sectional view taken along line VIII-VIII of FIG.

Hereinafter, a window regulator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Wire-type window regulator 10 of the present invention is for opening and closing the door window by a wire, specifically, characterized in that the structure including the balance spring (50).

Such a wire window regulator 10 includes an inner panel 20, a drive shaft 30, a drum 40, and a balance spring 50.

The inner panel 20 is disposed inside the door and has a plate shape in which a through hole 21 is formed. The inner panel 20 is made of a metal material and can be equipped with a variety of known components required for the car door. For example, the guide rail for lifting the door window is attached or configured to attach other motors or the like. On the other hand, the inner panel 20 is not limited to made of a metal material, it is also possible that the plastic material is produced by injection molding.

The drive shaft 30 is configured to include one end, the other end and the connecting portion, but is formed in a substantially rod shape. One end of the drive shaft 30 is provided with a handle connecting portion 31 to which a handle (not shown) for applying rotational force to the drum 40 is coupled. In addition, the other end of the drive shaft 30 is coupled to the drum 40, the connection portion of the drive shaft 30 is configured to pass at least a portion of the through hole 21 of the inner panel 20.

The drive shaft 30 is provided with a slot 323 which is fixed to the drive shaft 30 so that the bent portion 51 of the balance spring 50 to be described later is fitted so as not to be rotated relative to the drive shaft 30. The connection part 32 is arrange | positioned. The connection part 32 may be made of plastic synthetic resin material, but is not limited thereto. If the moldability is good, a metal material or other material may be used.

The connecting portion 32 includes a boss portion 321 and a fitting portion 322.

The boss 321 is formed in a cylindrical shape, but is fixedly coupled to the driving shaft 30, and an inner diameter of the boss 321 may be slightly smaller than an outer diameter of the driving shaft 30.

The fitting part 322 protrudes outward from the boss part 321 and is spaced apart from each other along the circumferential direction, and a plurality of fitting parts 322 are disposed around the boss part 321. The fitting portion 322 has a substantially rounded cross section of a trapezoidal shape, and a slot 323 is formed between the fitting portions 322 adjacent to each other, and the bent portion 51 is fitted. Accordingly, the slot 323 may have a somewhat larger distance than the thickness of the bent portion 51 so that the bent portion 51 may be fitted.

As the bent portion 51 of the balance spring 50 is fitted to any one of the plurality of fitting portions 322, the bent portion 51 is configured to rotate together with the connecting portion 32.

The drum 40 is disposed on the opposite side of the handle coupling portion with the inner panel 20 interposed therebetween and coupled to the other end of the drive shaft 30 to wind or unwind a wire according to the rotation of the drive shaft 30. It is configured to be. The drum 40 is configured such that the wire is wound in a spiral shape on its outer circumferential surface. The drum 40 is disposed on the opposite side of the balance spring 50 with the inner panel 20 therebetween.

The balance spring 50 is disposed on the opposite side of the drum 40 with the inner panel 20 interposed therebetween and may be added to the rotation of the drive shaft 30. The balance spring 50 is a spring wound in a coil shape on a plane with a thin long strip metal having a constant cross section, and a spiral spring may be used.

The balance spring 50 is formed in a substantially disc shape, but is disposed inside the spring body portion, the edge of which is bent, the outermost end is fixedly coupled to the spring body portion, the center of the bent portion 51 is bent inward It is arranged. The bent portion 51 is configured to be coupled to the slot 323 described above. At this time, the spring body portion is configured such that the upper cover 52 and the lower body 53 is detachably coupled to each other.

The balance spring 50 is disposed between the inner panel 20 and the handle, and in particular, the balance spring 50 is disposed at the same position as the connection portion 32 that is fitted and coupled to the drive shaft 30. When the drive shaft 30 is rotated while the outermost end is fixed to the spring body, the balance spring 50 is configured to be able to add or remove a load to the drive shaft 30 while the coil spring is unwinded or unwound. do.

Wire-type window regulator 10 according to an embodiment of the present invention has the following effects.

First, as shown in FIG. 6, the spring body portion including the balance spring 50 therein is co-axially spaced from the driving shaft 30. Thereafter, the center bent portion 51 of the balance spring 50 is lowered to allow the bent portion 51 to fit into the slot 323 of the connection portion 32. In this case, a plurality of slots 323 are arranged, and even when the position between the bent portion 51 and the slot 323 is slightly shifted, when the spring body is somewhat rotated in a predetermined direction, the bent portion 51 is rotated in the slot. It can be easily inserted in 323.

After rotating the bent part 51 in the slot 323 as described above, the spring body part is rotated at an angle to configure the balance spring 50 to have a predetermined elastic force, and then the spring body part is inner. Fixing the position on the panel 20 side to complete the assembly.

The wire-type window regulator produced in this way has a balance spring disposed on the opposite side of the drum, not on the upper side of the drum on which the door window is installed, so that the drum does not need to be excessively moved to the handle side, so that the wire is excessively The curvature can be prevented. When the wire is not excessively bent in this manner, the wire can be prevented from being caught or unnaturally moved in the tube.

In addition, according to the wire-type window regulator according to the present invention, when inserted into any one of the plurality of slots bent in the center of the balance spring can be configured to be rotatable with the drive shaft has the advantage that the assembly is easy. That is, the assembly can be made simpler because it only needs to be inserted into any one of the plurality of slots, rather than being inserted into the drive shaft formed with a single slot as in the prior art.

In addition, according to the wire-type window regulator according to the present invention, since the center bent portion of the balance spring is fitted to the connection portion having a larger outer diameter than the drive shaft, there is an advantage that the radius of the bent portion can be increased than when directly coupled to the drive shaft. When the radius of the bend becomes larger, the radius of curvature between the bend and the coil is slightly larger than when the radius of the bend is smaller than before, so there is no fear of suddenly bent areas. The advantage is that it is not easily broken.

It is to be understood that the invention is not limited thereto and that the scope of the claims may be broadly construed to the extent that they can be reasonably interpreted by the claims of the present invention.

10 ... Windows regulator 20 ... Inner panel
21 Through hole 30 Drive shaft
31.Handle connection 32 ... Connection
321 ... boss part 322 ... fitting part
323 ... Slot 40 ... Drum
50 ... balance spring 51 ... bend
Top cover 53 Bottom body

Claims (5)

In the wire type window regulator for opening and closing the door window by a wire,
An inner panel having a through hole formed therein and disposed in the door;
One end, the other end and the connecting portion for connecting the one end and the other end, the one end is provided with a handle connecting portion coupled to the handle and at least a portion of the connecting portion rotatable drive shaft passing through the through hole of the inner panel;
A drum disposed on the opposite side of the handle coupling portion with the inner panel interposed therebetween and coupled to the other end of the drive shaft to wind or unwind the wire in accordance with the rotation of the drive shaft; And
And a balance spring disposed on the opposite side of the drum with the inner panel interposed therebetween and capable of adding a load to the rotation of the drive shaft. The method of claim 1,
The balance spring,
It is disposed between the inner panel and the handle,
Wire wound window regulator, characterized in that the coil is wound in a spiral form is provided in the center. 3. The method of claim 2,
Further comprising a connection portion is fixed to the drive shaft so as not to rotate relative to the drive shaft and provided with a slot to which the bent portion is fitted,
And the bent portion is rotated together with the drive shaft as the bent portion is fitted into the slot. The method of claim 3,
Wherein the connecting portion comprises:
A boss having a cylindrical shape and fixedly coupled to the drive shaft; And
It is composed of a plurality of fitting parts protruding outward from the boss portion and spaced apart from each other along the circumferential direction,
The slotted window regulator, characterized in that the slot is formed between the adjacent adjacent parts. The method according to claim 3 or 4,
The connection part is a wire window regulator, characterized in that made of a synthetic resin material.

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