JPS6137740Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a wind regulator using a control cable having a drive device with a mechanism for automatically absorbing the permanent elongation of the inner cable.

2. Description of the Related Art Window regulators have been well known in the past, in which a window glass is opened and closed by moving the window glass up and down using an arm that meshes with an operating section using gears. This device uses many parts, such as gears and arms, which are pressed onto iron plates, making the device mechanically complex and costly, and furthermore, the device as a whole is relatively large and extremely heavy.
In order to eliminate such drawbacks, various proposals have been made for devices using toothed cables having spiral teeth, such as in Japanese Patent Application Laid-Open No. 108424/1982. This requires a rigid guide pipe with a longitudinal slit over its entire length, which increases the size of the device.For example, in automobiles, the door panel must have a large cutout, and a Since it is a device, it is extremely difficult to attach it to the door. Furthermore, since the toothed cable slides inside the guide pipe, the spiral teeth come into sliding contact with the inner circumferential surface of the guide pipe, which inevitably generates noise every time the operation is performed, which is unpleasant for automobile passengers. It is the cause of pleasure. In addition, a device using a wire has been proposed as in Japanese Utility Model Application Publication No. 55-103376, but in this device, the wire winding and unwinding mechanism (drive device) and the guide rail part are separately installed in the automobile. The tension of the wire must be adjusted after it is attached to the door, and a wire without a conduit requires a large space for wiring and has the disadvantage that it can only be wired in two dimensions.

A wire made of stranded metal wire undergoes permanent elongation (elongation that cannot be restored) due to the load applied to it. This elongation is large at the beginning of use, but gradually decreases and eventually becomes almost impossible to elongate. There is play between the operation of the drive device and the driven window glass, making it impossible to drive the window glass accurately, and eventually the driven window glass becomes unstable in a constant state, and the wire with the play cannot be wound up. There is a serious defect in that buckling fatigue is added by returning the wire and the wire eventually breaks, and there is also a risk that the wire may come off from the pulley, guide groove, etc. due to stretching of the wire, making it impossible to operate. In order to absorb such wire elongation, a conventional method has been to add a tension pulley mechanism to the pulley with which the cable is engaged, and remove the wire elongation by moving the tension pulley. be. However, with this type of structure, the wire elongation absorption has to be adjusted each time, which requires space, and the work is extremely troublesome, and the disadvantage is that it is not easy to adjust depending on the installation location. There is.

The main purpose of the present invention is to eliminate each of the drawbacks of the conventional methods as described above, to use a drive device equipped with a mechanism that automatically absorbs wire elongation whenever it occurs, and to use a flexible control cable. To provide the wind regulator used.

The window regulator of the present invention will be explained with reference to the drawings. In the following explanation, the window regulator for an automobile will be explained as a representative example. In Fig. 1, reference numeral 1 denotes a guide rail which can be attached to the inside of an automobile door, reference numeral 3 denotes a slide shoe 2 which slides along the guide rail 1, and reference numeral 4 denotes a rope end fitting 9 fixed to one end of inner ropes 9a, 9b.
The bracket has a locking groove 3b for locking the inner cable 1b, 92b. A guide member 4 is attached to one end of the guide rail 1, and a cable guide 5 is attached to the other end of the guide rail.
The cable guide has one end of two flexible conduits 7a, 7b of a control cable 6 (hereinafter simply referred to as cable) through which inner cables 9a, 9b are inserted.
The other ends of 7a and 7b are fixed to a casing 11 of the drive unit 8, and a shaft 12 is pivotally supported on said casing as shown in Fig. 2. A first pulley having first ratchet teeth 13a of an appropriate width engraved around the entire circumference of one side of said shaft 12 and having an inner rope engaging hole 13b drilled at an appropriate position on its outer periphery is fitted on said shaft 12 so as to rotate together with it.
Further, second ratchet teeth 14a are provided in close contact with the first pulley 13 and mesh with the first ratchet teeth 13a.
A cylindrical ratchet roller 14 with a bottom and grooves on one side is pivotally supported on the shaft 12 so as to be rotatable and move slightly in the axial direction, and is pressed against the first pulley 13 by an elastic member 17. A cylindrical second pulley 15 is rotatably supported on the outer circumferential surface of the ratchet roller 14, and a sector-shaped adjustment projection 15a projecting radially inward is provided at an appropriate position on one side of the second pulley 15 opposite the first pulley 13. A cylindrical clutch boss 11c, concentric with the central shaft hole 11b of the bottom 11a of the casing 11, projects axially inward from the bottom 11a by an appropriate length, and a clutch spring 16 is wound around the outer circumferential surface 11d of the boss. One end 16a of the clutch spring 1 is engaged with a clutch spring engaging groove 14b provided in the ratchet roller 14 as shown in FIG.

Next, the locking member 91a fixed to one end of the inner cable 9a inserted into the conduit 7a in the cable is connected to the first
The inner cable is locked in the inner cable locking hole 13b formed in the pulley 13, and the lever 10 is moved to A as shown in FIG.
When rotated in the direction, the end 91 of the inner cable is attached to the first pulley.
The inner cable 9a reaches the bracket 3 through the first guide groove 5a of the cable guide, and the locking member 91b at the other end is locked in the locking groove 3a. Inner cable 9b inserted into conduit 7b
The locking member 92a fixed to one end is locked to the inner cable locking hole 15b formed in the second pulley 15, and when the lever 10 is rotated in the direction A as shown in FIG. The inner cable 9b, which is unwound from the second pulley, is engaged with the guide member 4 through the second guide groove 5b of the cable guide 5, and the inner cable 9b is unwound from the second pulley.
A locking member 92b fixed to the other end of the inner cable is locked in the locking groove 3a provided in the inner cable.In this case, the orientation of the ratchet teeth is such that when the first pulley rotates in direction A, The teeth are not aligned and it appears to be spinning idly.

To explain the function and effect of the wind regulator of the present invention, when the lever 10 fixed to the shaft 12 is rotated in the direction A, the first pulley to which the shaft 12 is fitted also rotates in the direction A, and the inner The end 91 of the cable 9a is pulled in the G direction and wound around the first pulley. Thus, the bracket 3, to which the locking member 91b fixed to the other end of the inner cable 9a is locked, is pulled and slid in the D direction. Furthermore, when the inner cable does not stretch or slack, the inner cable 9b is also moved in the D direction by the locking member 92b fixed to one end of the inner cable 9b that is locked in the locking groove 3a of the bracket 3 that has slid in the D direction. The sliding direction is changed by the guide member 4, and the cable slides in the c direction, passes through the second guide groove 5b of the cable guide 5, slides in the conduit 7b in the H direction, and slides in the H direction of the drive device 8. The end portion 92 of the inner cable wound around the second pulley is pulled in the H direction and unwound, thereby rotating the second pulley in the A direction. When the second pulley is rotated in the A direction, the adjustment protrusion 15a provided on one side of the second pulley pushes the one end 16b of the clutch spring 16 wound around the clutch boss 11d in the A direction, that is, the clutch is rotated. Spring 1
6 is pushed in the direction of unraveling, so the other end 16a of the clutch spring starts rotating at the same time in the direction A.
The ratchet roller 14 that is locked is also
direction. In this way, the ratchet can move to the first position without idling even though it is not in the direction of meshing.
The pulley, second pulley, and ratchet roller work together to rotate in direction A to move the window glass to D.
It can be slid in the direction.

When the lever is rotated in direction B, the inner cable wound around the first pulley is unwound, and at the same time the first ratchet tooth 13a carved on the first pulley 13 and the ratchet roller 14 are engraved. Since the second ratchet tooth 14a is in the meshing direction, the ratchet roller 14 also rotates in the B direction at the same time. One end 16a of the clutch spring 16, which is locked in the clutch spring locking groove 14b provided on one side of the ratchet roller 14, is rotated in the direction B, so that the clutch spring 16 is pushed in the unraveling direction. simultaneously rotates in the B direction, and the second
The adjustment protrusion 15a provided on one side of the pulley
As it rotates while pushing in direction B, the ends 92 of the inner cables wound around the second pulley are pulled and wound in direction G. At this time, the ends of each inner cable are locked. The bracket can be slid in the C direction.

To summarize the above action, when there is no slack in the inner cable, when the lever 10 is rotated in the direction A, the bracket slides in the direction D by the inner cable to close the window glass, and when the lever is rotated in the direction B. Bracket 3
can be slid in direction C to open the window glass.

Inner cable 9 in the wind regulator of the present application
When the lever 10 is rotated in the A direction, the extension is absorbed when the lever 10 is rotated in the A direction.In other words, when the lever 10 is rotated in the A direction, the end 91 of the inner cable is pulled by the first pulley. Although it is wound in the G direction, the end 92 of the inner cable wound around the second pulley is stretched and slack, so it does not immediately slide in the H direction and stops, so naturally the second pulley also stops. At that time, since the adjusting protrusion 15a does not push the one end 16b of the clutch spring in the direction A, the clutch spring 1
The ratchet roller 14, which is in close contact with the first pulley 13, is pressed by an elastic member 17 and rotates in the direction A at the same time as the first pulley. However, since the end portion 16a of the clutch spring, which is locked in the clutch spring locking groove 14b provided in the ratchet roller, is in the direction of wrapping around the clutch boss 11c, rotation is prevented and the ratchet teeth are Since it is not in the meshing direction, it will idle and the first
Only the pulley rotates in the A direction and absorbs the elongation. As mentioned above, the wind regulator of the present invention has the effect of automatically absorbing even the slightest elongation of the wire by simply raising and lowering the window glass.

Furthermore, in the case of a wind regulator having a drive device with a mechanism that absorbs the elongation of the inner cable as described above, after the device is assembled to the door, adjustment work is required to apply a constant tension to the inner cable as in the conventional method. We provide an unprecedented and excellent wind regulator that can automatically obtain the desired tension by simply winding the inner cable around each pulley and then rotating the lever without having to do any additional work. can do.

In addition, it is extremely light in weight compared to other conventional wind regulators, with conventional arm-type wind regulators weighing only 1200g for medium-sized cars, excluding the glass.
~1300g, whereas in the device of this application it is approximately 550g.
Since it is possible to reduce the weight by more than 50%, it has the effect of greatly contributing to the weight reduction of automobiles, etc. for resource and energy conservation, and the driven part (around the guide rail) and drive unit are made of flexible conduits. Since they are connected, by attaching them three-dimensionally or three-dimensionally as shown in Figure 7, an unprecedented effect can be achieved without interfering with the door lock mechanism or the drive belt operating mechanism installed inside the door. It also has excellent effects that can be used widely regardless of the type of car.

In addition, Fig. 1 of the present application shows an example in which the bracket is installed with the guide member 4 facing down and the glass rising in the direction D, but conversely, the bracket is installed with the guide member 4 facing upward and the glass rising in the direction C. Of course, it may also be used in the opposite direction.

[Brief explanation of the drawing]

The drawings are related to the present invention, and FIG. 1 is a partially cutaway front view showing an outline of one embodiment, FIG. 2 is a perspective view showing the disassembled state of the drive device, and FIG. 3 is a drive device. 4 is a rear view taken along the line ``-'' in FIG. 3, FIG. 5 is a partially cutaway rear view taken along the line ``-'' in FIG. FIG. 3 is a partially cutaway rear view (partially omitted) showing the locked state of the inner cable in cross section, and FIG. 7 is a partially cutaway side view showing the device attached to the door. 1: Guide rail, 2: Slide show, 3:
Bracket, 3a: Locking groove, 4: Guide member,
5: Cable guide, 5a: First guide groove, 5
b: Second guide groove, 6: Control cable,
7a, 7b: conduit, 8: drive device, 9a, 9b:
Inner cable, 10: Lever, 11: Casing, 11
a: bottom, 11b: shaft hole, 11c: clutch boss, 11d: clutch boss outer peripheral surface, 12: shaft, 1
3: First pulley, 13a: First ratchet tooth, 1
3b: Locking hole, 14: Ratchet roller, 14
a: Second ratchet tooth, 14b: Clutch spring locking groove, 15: Second pulley, 15a: Adjustment protrusion, 1
5b: Locking hole, 16: Clutch spring, 1
7: Elastic member.

Claims (1)

[Scope of utility model registration request] A window regulator that opens and closes a window glass of an automobile by winding and unwinding an inner cable of a control cable, the wind regulator includes at least one guide rail, the inner cable is locked at an appropriate position, and the inner cable runs along the guide rail. a bracket having a slide shoe that can be slid along the guide rail and to which the window glass is attached; a guide member attached to one end of the guide rail and with which the inner cable is slidably engaged; and a guide member fixed to the other end of the guide rail. a cable guide, one end of which is connected to the cable guide, and two flexible conduits through which the inner cable is inserted; and a flexible conduit that is fixed to the other end of the conduit and that simultaneously winds and unwinds both ends of the inner cable. The drive device consists of a shaft that is pivotally supported by the casing and rotated by a lever, and a first ratchet tooth that is fitted onto the shaft and has an appropriate width carved around the entire circumference of one side. a first pulley, around which one end of the inner cable is wound; a first pulley that is in close contact with the first pulley, is rotatably and axially movably supported on the shaft, and meshes with the first ratchet teeth; A ratchet roller having two ratchet teeth carved on one side and a clutch spring locking groove on the other side, and a side rotatably crowned on the outer peripheral surface of the ratchet roller and opposite to the first pulley. A substantially cylindrical second pulley is provided with a fan-shaped adjustment protrusion projecting radially inward on its outer peripheral surface and has an inner cable appropriately wound around its outer peripheral surface, and the ratchet roller is connected to the first pulley side. a clutch spring for regulating the rotation of the ratchet roller; and a cylindrical clutch boss projecting in the axial direction from the bottom of the casing for winding the clutch spring, A wind regulator having a drive device equipped with a mechanism that automatically absorbs the elongation of the inner cable being wound up or rewound by the two pulleys.