JPH034713Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism for tensioning wires in a wind regulator.

Generally, a wind regulator that opens and closes the window of a car door drives a wire to run a slider connected to the wire along a rail.
The slider is configured to open and close the window glass attached to the slider.

The wire must be kept under tension at all times. If the wire is loose, for example, the winding of the wire around the drum used to drive the wire will become unstable, making it impossible to drive the wire stably and smoothly, resulting in inconveniences such as unreliable opening and closing operations of window glass. This is because

By the way, the wind regulator is assembled by loosening the wires a little in order to make the assembly work easier. Therefore, the wires were loose when the assembly was completed, and it was necessary to tighten them.

Conventionally, the following mechanism was used to tension the wire. That is, a portion of the wire is slidably inserted into a flexible support tube, and both ends of the support tube are locked by receiving members. Only the wire is inserted through this receiving member. One receiving member is screwed to the supporting member. By rotating this receiving member, the space between the receiving members is narrowed, the support tube is deflected, and the wire can be tensed by the amount of this deflection.

However, in the above-mentioned conventional configuration, the wire is tensed by twisting the receiving member.
This work was tedious. Further, even if the receiving member is fixed with a nut, the nut may loosen due to vibration or the like and may return due to the reaction force from the support tube, resulting in the disadvantage that sufficient tension cannot be maintained for a long period of time.

The present invention was developed based on these circumstances, and its purpose is to provide a wire tensioning mechanism for a wind regulator that allows for easy wire tensioning work and that can provide sufficient tension over a long period of time. Our goal is to provide the following.

In order to achieve the above object, the tensioning mechanism of the present invention uses a ratchet mechanism.

An embodiment of the present invention will be described below with reference to the drawings.

A schematic configuration of a window regulator for opening and closing a door window of an automobile is shown in FIG. In the figure, reference numeral 1 indicates a rail. Corner members 2a and 2b are attached to the upper and lower ends of this rail. A wire 3 is hung between the corner members 2a and 2b. This wire 3 is adapted to be driven by a drive mechanism 4. Drive mechanism 4 is case 5
A drum 6 on which the wire is wound is provided inside, and the wire 3 is driven by operating a handle (not shown). A slider 7 is connected to the wire 3. This slider 7 is adapted to travel along the rail 1 by driving the wire 3.
A bracket 8 is attached to the slider 7, and a window glass (not shown) is attached to the bracket 8 either directly or through another member.

Next, the wire tensioning mechanism, which is an important feature of the present invention, will be explained. As shown in FIG. 1, a bracket 10 (supporting member) made of sheet metal is immovably fixed to a case 5 (fixed system member) of the drive mechanism 4, and a resin receiver is attached to the lower end of this bracket 10. A member 11 is attached. A flexible support tube 12 is provided between the receiving member 11 and the lower corner member 2b (another receiving member). The support tube 12 is composed of, for example, a spiral tube formed by spirally winding a metal wire and a tube covering the spiral tube. The wire 3 is slidably inserted into the support tube 12.

The relationship between the lower end of the bracket 10 and the receiving member 11 is shown in FIGS. 2 to 4. Receiving member 1
Teeth portions 13 are formed on both sides of 1 along the longitudinal direction. Projections 14a and 14b are formed on the upper and lower sides of the toothed portion 13 to project laterally. Furthermore, a protrusion 15 is formed on the receiving member 11 .
As shown in FIG. 3, the receiving member 11 has a first insertion hole 16 into which the end of the support tube 12 is inserted and a wire 3
A second insertion hole 17 for inserting a chisel is formed in series. The second insertion hole 17 is the first insertion hole 1
The portion adjacent to the first insertion hole 16 has a smaller diameter than the first insertion hole 16, and the diameter gradually increases toward the end. The first insertion hole 16 and the second insertion hole 17
A stepped portion 18 is formed at the boundary between the two, and the support tube 12 is secured to this stepped portion 18. On the other hand, a support portion 19 is formed at the lower end of the bracket 10. This support part 19 includes a bottom part 19a, side parts 19b, 19b formed on both sides of this bottom part 19a, and side parts 19b, 19b,
19b and has upper side portions 19c, 19c that are parallel to the base portion 19a. The side portions 19b, 19b are cut and raised with claws 20, 20 directed inward. This nail 2
0 and 20 and the tooth portions 13 and 13 of the receiving member 11 constitute a ratchet mechanism 31. Then, the receiving member 11 is inserted into this supporting portion 19 from the direction of arrow A in FIG.
9, the bottom part 19a, the side part 19b, and the top part 19c
It is supported so that it is surrounded by. At this time, the claws 20, 20 are attached to the protrusions 14a, 1 of the receiving member 11.
4b and engages with the teeth 13, 13. As a result, the receiving member 11 can move in the direction approaching the support tube 12, that is, in the direction of arrow A, but cannot retreat in the opposite direction. Further, as shown in FIG. 3, the lower corner member 2b has a guide groove 21 for slidably supporting the wire 3, and an insertion hole 22 connected to the guide groove 21. The other end of the support tube 12 is inserted into this insertion hole 22 . A stepped portion 2 is provided at the boundary between the guide groove 21 and the insertion hole 22.
3 is formed, and the support tube 12 is attached to this stepped portion 23.
The end of the frame is designed to be locked. The wire tensioning mechanism is configured as described above.

At the upper end of the bracket 10 is another receiving member 25.
is attached. A flexible support tube 26 is also provided between the receiving member 25 and the upper corner member 2a. The wire 3 is slidably inserted through the support tube 26. A protrusion 27 having an inclined surface 27a is formed on both sides of the receiving member 25. When the receiving member 25 is press-fitted into the upper end of the bracket 10 from the direction B in FIG. It is attached to the bracket 10. As shown in FIG. 3, inside the receiving member 25, a first insertion hole 29 into which the end of the support tube 26 is inserted, and a second insertion hole 30 into which only the wire 3 is inserted are formed in series. . A step portion 31 is formed at the boundary between the insertion holes 29 and 30, and the end portion of the support tube 26 is secured to the step portion 31. Note that the upper corner member 2a supports the support tube 26 and the wire 3 in the same manner as the lower corner member 2b described above.

In the above configuration, when the wire 3 is driven by the drive mechanism 4, the slider 7 connected to the wire 31 runs along the rail 1, and the window glass is opened and closed.

The wire 3 is loosened after the wind regulator is assembled, but it is tightened as follows. That is, when the projection 15 of the receiving member 11 is grasped and the receiving member 11 is pushed in the direction of arrow A in FIG.
0 and 20 are elastically deformed and expanded, and the receiving member 11 is moved in the direction of arrow A. When the receiving member 11 moves in the A direction, the distance between the receiving member 11 and the lower corner member 2b narrows. As a result, the support tube 12 is bent, and the wire 3 is tensed according to the amount of this bending, in other words, depending on the amount of movement of the receiving member 11. Said claw 20,
20 is a toothed portion 13 of the receiving member 11 due to its spring action.
This securely locks the receiving member 11 at A.
Since movement in the opposite direction is prohibited, the flexible state of the support tube 12 is maintained, and as a result, the taut state of the wire 3 is maintained. Since the wire 3 is under tension, it is stably wound around the drum 6 of the drive mechanism 4, and as a result, the above-mentioned opening/closing operation of the window glass is performed stably and smoothly. Further, the above-described tensioning work of the wire 3 is extremely simple because it only involves moving the receiving member 11 linearly.

Note that the present invention is not limited to the embodiments described above and can be modified in various ways. For example, in the embodiment described above, the claws 20, 20 of the ratchet mechanism 31 were formed by cutting and raising a part of the support tube 19 of the bracket, but as in the embodiment shown in FIG. may be formed. By design,
Reference numeral 40 denotes a claw member made of a spring material, and claws 41a, 41b, 41b are cut and raised on the upper side 40a and both side sides 40b, 40b, respectively. Also, both sides 40b, 40b
Engagement pieces 42, 42 are formed at the lower end of.
On the other hand, 43 is a support part formed at the lower end of the bracket, and both sides 43a of this support part 43,
Upper side portions 43b, 43b are formed at the upper end of 43a with a gap 44 in between. Both sides 43
Engagement holes 45, 45 are formed in a, 43a. Also, from both sides 43a, 43a to the upper side 43
Insertion holes 46, 46 are formed across b, 43b. When the claw member 40 is inserted into the support portion 43 while being elastically deformed in the direction of arrow C in FIG. It is attached to the support part 43. In this installation state,
Claw 41a on which upper side 40a of claw member 40 is formed
is inserted into the gap 44 and directed inward of the support portion 43. Also, both sides 40 of the claw member 40
The claws 41b, 41b formed on the holes 46, 40b are inserted into the insertion holes 46, 46 and are directed into the support portion 43. In the figure, 47 is a receiving member, and toothed portions 48 are formed on both side surfaces and the upper surface of this receiving member 47. This receiving member 47 is the sixth
It is designed to be inserted into the support portion 43 from the direction of arrow D in the figure. The locking action between the teeth 48 of the receiving member 47 and the claws 41a, 41b, 41b of the claw member 40 is the same as in the previous embodiment. In this case, the support portion 43 and the claw member 40 constitute a support member. Further, the receiving member 47 has grooves 4 for escaping the locking pieces 42, 42 of the claw member 40.
9,49 are formed.

Further, in the above-described embodiment, a ratchet mechanism was formed between the lower end of the bracket and the receiving member supported by the ratchet mechanism to tension the wire, but the ratchet mechanism was formed between the lower end of the bracket and the receiving member supported by the ratchet mechanism. A ratchet mechanism may also be formed between the members.

Furthermore, the support member movably supported by the receiving member by the ratchet mechanism may be separate from the bracket. Further, the other receiving member may also be separate from the corner member.

Furthermore, the present invention can be applied to a wind regulator in which rollers are rotatably attached to both ends of the rail in place of the corner members, and wires are strung around the rollers to support the rollers. In this case, a bracket may be fixed to the spindle of the roller, and the receiving member may be supported by this bracket via a ratchet mechanism.

As explained above, according to the present invention, by using the ratchet mechanism, the wire can be tensioned by moving the receiving member linearly, so this tensioning work is easy. The claws are formed by cutting and raising a part of the sheet metal support member, and this support member is immovably fixed to the fixed system member to ensure that the wire tension is maintained over a long period of time. can be maintained.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being a front view of a wind regulator, Figure 2 being a front view showing a part of the wire tensioning mechanism, and Figure 3 being a front view of a wind regulator. Fig. 4 is an exploded perspective view of the bracket and the receiving member, Fig. 5 is an exploded perspective view of the bracket and other receiving members, and Fig. 6 shows another embodiment of the present invention. It is a perspective view of the important part shown. 1...Rail, 2a...Upper corner member, 2b
... lower corner member, 3 ... wire, 4 ... drive mechanism, 7 ... slider, 10 ... bracket (supporting member), 11, 47 ... receiving member, 12 ... support tube, 13, 48 ... Teeth, 5...Case (fixed system member), 20, 41a, 41b...Claw, 31...
Ratchet mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] In a wind regulator which operates a slider connected to the wire along a rail by driving the wire to open and close a window glass attached to the slider, (a) a wire; a flexible support tube through which a portion of the support tube is slidably inserted; (b) a resin receiving member that locks the end of the support tube and through which the wire is inserted; and (c) a fixed member. a support member made of sheet metal that is immovably fixed and that wraps around the receiving member and supports the receiving member so as to be movable in the direction in which the wire extends; (d) teeth provided on the receiving member; and The ratchet mechanism is formed by cutting and raising a part of the support tube inward, and includes a pawl that engages with the teeth, and allows the support member to move only in the direction approaching the support tube. A wire tensioning mechanism in a wind regulator.