JPS6346607Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to an improvement of an automobile window opening/closing device using a control cable (hereinafter simply referred to as a cable). More specifically, this is a window opening/closing device that automatically absorbs the slack in the inner cable when the inner cable is stretched due to a load applied to the inner cable, thereby preventing problems in opening and closing the window. It is.

A well-known conventional window opening/closing device is one in which a gear is used as a drive part, and an arm having a gear that meshes with the gear is used to raise and lower a window glass to open and close it. For such devices,
Since the window glass is moved up and down by the arc movement of the tip of the arm, problems can easily occur due to sliding between the arm and the window glass, and the distance from the drive gear to the tip of the arm is constant, making it versatile. There are some shortcomings.

In addition, a device using a wire has been proposed as proposed in Japanese Utility Model Publication No. 55-103376, but in this device, the wire winding and unwinding mechanism and the guide rail part are attached to the door of an automobile. After installing,
It is necessary to adjust the tension of the wire, and since the wiring range of the wire is essentially wide, a large installation space is required. There are drawbacks that cannot be changed.

The main object of the present invention is to provide a window opening/closing device that can smoothly open and close a window glass and that automatically absorbs the slack when the inner cable is stretched and always operates accurately.

Another object of the present invention is to provide a highly versatile window opening/closing device in which the position of the driving device (device that drives the cable) relative to the driven device (device that opens and closes the window glass) can be extremely arbitrarily determined, and that requires only a small installation space. is to provide.

Other objects and advantages of the present invention will become apparent from the following description.

An embodiment of the present invention will be explained with reference to the drawings.
As shown in FIG. 1, the window opening/closing device is roughly divided into a driving device A and a driven device B.

First, the drive device A will be explained with reference to FIGS. 2 and 3. A casing 1, a shaft 2 that is pivotally supported by the casing and can be rotated, and a shaft that engages with a square shaft portion 2' of the shaft. A first pulley 3 provided with a square hole 3' and driven by rotation of the shaft, a second pulley 4 pivotally supported by the shaft and having the same diameter as the first pulley 3, and a second pulley 4 provided on the first pulley. A coil spring 5 has both ends 5' and 5'' hooked to the inner surface of the recess 3'' and an extension 4' provided near the shaft 2 of the second pulley.

An elastic member 15 is fitted between the second pulley 4 and the bottom surface 1' of the casing, and presses the second pulley against the first pulley with an appropriate force. are provided with ratchet teeth 6 and 7, respectively.

The cable 8 consists of a conduit 9 and an inner cable 10 slidably inserted into the conduit.
The cable a passes through one guide tube 16 and is wound around the first pulley 3 an appropriate number of times, and then its end 10' is locked to the engaging part 18 of the first pulley, and the inner cable 10b at the other end
is passed through the other guide tube 17 and wound around the second pulley 4 an appropriate number of times, and then its end 10'' is locked to the engaging portion 19 of the second pulley.

The second ratchet tooth 6 of the first pulley 3
The ratchet teeth 7 of the pulley 4 are assembled by being biased in the sliding direction (anti-engagement direction) by the repulsive force of the coil spring.

Next, the driven device B will be explained with reference to FIG.
A bracket 21 having a guide rail 20 (not shown) that is attached to the inside of a car door, for example, and a slide shoe 22 that can be slid in directions E and F along the guide rail, and a rotatable bracket 21 at one end of the guide rail. Guide member 2 attached to
3 and two cable guides 24a and 24b provided at the other end of the guide rail, and both cable guides have two fixing parts 25a and 25b for fixing the ends of the two conduits 9a and 9b. are provided for each.

The inner cable 10a on one end side is connected to one cable guide 2.
4a in the direction of the guide member 23, and the inner cable 10b on the other end side is bent in the direction of the driven pulley 23 by the other cable guide 24b.

The bracket 21 is provided with a fixing means 27 for fixing the inner cable 10 (in this embodiment, the inner cable 1 on one end side).
0a] at a suitable position, and a window glass 26 is attached to the bracket.

To explain the function and effect of this invention, lever 12
When the is rotated in the forward direction (rotation in the c direction), the first pulley also rotates in the forward direction due to the engagement between the square shaft portion 2' of the shaft 2 and the square hole portion 3' of the first pulley 3, and the ratchet of the first pulley is rotated in the forward direction. By engaging the teeth 6 with the ratchet teeth 7 of the second pulley 4, the second pulley also rotates in the forward direction. In this case, since the second pulley 4 is pressed in the direction of the first pulley 3 by the elastic member 15, the two ratchet teeth do not disengage.

As described above, by rotating the first pulley 3 and the second pulley 4 in the forward direction, the inner cable 10a at one end is unwound from the first pulley and the inner cable 10b at the other end is wound around the second pulley. By the U-shaped operation of the inner cable 10 whose intermediate portion is engaged with the driven pulley 23, the bracket 21 fixed to the inner cable 10a on one end side by the fixing means 27 is operated in the E direction, and the bracket The window glass fixed to the window will be opened.

Next, when the lever 12 is reversely rotated (rotated in the D direction), the first pulley 3 engaged with the shaft 2 as described above
The bracket 21 rotates in the opposite direction and winds the inner cable 10a at one end around the first pulley, so the bracket 21 operates in the F direction.
The window glass will be closed. In this case, the ratchet teeth 6 of the first pulley 3 try to slide against the ratchet teeth 7 of the second pulley 4, but the movement of the inner cable 10a on the one end side in the G direction is prevented by being curved by the guide member 23. Since the inner cable 10b at the other end is operated in the H direction, the inner cable at the other end whose other end 10'' is locked to the second pulley 4 causes the second pulley to
Like pulley 3, it rotates in the opposite direction.

The inner cable 10 has one end 10' engaged with the engaging part 18 of the first pulley 3, and the other end 10'' engaged with the engaging part 19 of the second pulley 4, so that both cables on the driven device B side are engaged with each other. It is engaged with the driven pulley 23 via guides 24a and 24b, and the space between both guide cylinders 16 and 17 of drive device A and both fixed parts 25a and 25b of driven device B is flexible but not expandable. Since the inner cable 10 is inserted into both conduits 9a and 9b, which are not connected to each other, normally there is no problem such as slack in the inner cable 10 and play in opening and closing the window glass 26, but if a load is applied to the window glass. Even if the inner cable 10 is stretched due to reasons such as the above, the window opening/closing device of the present invention automatically absorbs the slack in the inner cable as described below.

That is, when the inner cable 10 becomes slack, the first pulley 3 and the second pulley 4 are stopped by the repulsive force of the coil spring 5 whose both ends 5' and 5'' are engaged as described above.
The second pulley 4 is biased to rotate in the forward direction (rotation in the C direction) with respect to the pulley 3, and the forward rotation direction of the second pulley with respect to the first pulley is such that the second pulley 4 is biased against the ratchet teeth 6 of the first pulley. ratchet tooth 7
is the sliding direction (anti-engagement direction), the second pulley 4 overcomes the pressure of the elastic member 15 in the first pulley 3 direction and rotates forward relative to the first pulley 3 by the slack of the inner cable 10. At that position, both the ratchets 6 and 7 mesh with each other due to the pressure, and the inner cable 10 is rotated by the next forward and reverse rotations of the lever 12.
The window glass 26 can be opened and closed accurately by the driving operation.

The elongation of the inner cable 10 is several mm per meter at most.
Therefore, the biasing length of the coil spring 5 may be sufficient to absorb the slack of the inner cable, and the diameter of the coil spring may also be small. Since the diameter can also be made small, the drive device A can be made small.

In addition, since the cable 8 is flexible, the driven device B of the driving device A is
The mounting position can be any position not only in the vertical and horizontal directions in Fig. 1, but also in the front and back directions, and therefore it is extremely versatile because it can immediately respond to changes in the shape of the car door, etc., and for the same reason. This is a window opening/closing device that can be installed in a small space and has great practical effects.

Note that even if the bracket 21 is fixed to the inner cable 10b at the other end, or the second pulley 4 is engaged with and driven by the shaft 2, and the bracket 21 is pivoted about the first pulley 3, other methods as shown in the drawings are possible. It goes without saying that any structural changes that can be easily imagined from the described embodiments still fall within the technical concept of the present invention.

[Brief explanation of drawings]

The drawings relate to one embodiment of the present invention, and include
Fig. 1 is a partially cutaway front view, Fig. 2 is a partially cutaway enlarged front view of the drive device in Fig. 1, and Fig. 3 is Fig. 2-
FIG. A: Drive device, B: Driven device, C: Forward rotation direction, D: Reverse rotation direction, 1: Casing, 2: Shaft,
2': Square shaft part, 3: First pulley, 3': Square hole part,
4: Second pulley, 4': Extension part, 5: Coil spring,
5', 5'': both ends of the coil spring, 6: ratchet teeth of the first pulley, 7: ratchet teeth of the second pulley,
8: Control cable, 9a, 9b: Conduit,
10a, 10b: inner cable, 10': one end of inner cable, 1
0″: Other end of inner cable, 12: Lever, 16, 17:
Guide tube, 18, 19: engaging portion, 20: guide rail, 21: bracket, 22: slide show,
23: Guide member, 24a, 24b: Cable guide, 25a, 25b fixing part, 26: Window glass.

Claims (1)

[Scope of utility model registration request] A window regulator comprising a driven device that raises and lowers a window glass, and a drive device connected to the driven device so as to transmit power via a control cable, the driven device being provided at least in the vertical direction. A guide rail, a bracket slidably provided on the guide rail and to which a window glass is attached, and an inner cable of the control cable pivotally connected to one end of the guide rail and driven by the drive device are engaged. a driven device comprising a guide member fixed to the other end of the guide rail, and one end side of the driving device and the driven device are two conduits through which both ends of the inner cable are inserted. are connected by
The drive device includes a shaft that is pivotally supported by a casing and rotationally driven, a first pulley that follows the rotation of the shaft, a second pulley that is pivotally supported by the shaft and has approximately the same diameter as the first pulley, and An elastic member that presses the second pulley in the direction of the first pulley and ratchet teeth are provided on the pressing surfaces of the first and second pulleys, and the ratchet teeth of the second pulley are arranged in the forward rotation direction of the first pulley. A coil spring is fitted between the first pulley and the second pulley, the ends of which are respectively engaged with both pulleys, and which is configured to be able to slide in the reverse direction of rotation. A pulley is urged in the reverse rotation direction relative to the first pulley, one end of the inner cable of the control cable is locked to the first pulley so that it can be wound (or unwound), and the second pulley is A window opening/closing device characterized by a structure in which the other end of the inner cable is locked so that it can be unwound (or wound up).