JPS6226534Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a window regulator for an automobile.

Conventionally, upper and lower pulleys are attached to the upper and lower parts of the guide member that guides the window glass holding member up and down.
A drum is placed on the side between the upper and lower pulleys, a wire is stretched between the drum and the upper and lower pulleys in a triangular shape, and the holding member is moved up and down via the wire by rotation of the drum using a handle, etc., and the window is closed. A window regulator for opening and closing glass has been proposed (Utility Model Application No. 41996/1983).

By the way, in the above-mentioned window regulator, each bracket of the upper and lower pulleys and the bracket of the drum are connected to each other by a flexible coil member through which a wire is inserted so as to maintain the distance between them. Because it was necessary to assemble the coil under tension and attach it to the vehicle body, the coil member was often large and difficult to handle and install, and the coil member needed to have a structure that had both rigidity and flexibility. A bracket was also required to hold it, making it expensive and heavy.

This idea was made in view of the above-mentioned conventional problems, and a spring member is provided on at least one of each support member to which upper and lower pulleys are attached at the upper and lower parts of the guide member, and the support member is moved in the direction in which the wire is stretched. At the same time, before installing the vehicle body, the support member is unlatched to the non-tensioned position so that the wire is not tensioned, and when the vehicle body is installed, after the guide member and the drum are attached to the vehicle body,
By threading the vehicle body mounting screws, the support member is unlocked and the wire is stretched, which reduces the size before installation and makes handling and installation easier. This eliminates the need to reduce costs and weight.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a window regulator for an automobile door 1 includes a bar-shaped guide member 5 that vertically guides a holding member 4 to which the lower part of a window glass 2 is fixed with screws 3, 3. An upper bracket 6 is fixed to the upper part of the guide member 5, and a lower bracket 7 is fixed to the lower part of the guide member 5, and a door inner plate 8 (Fig. Attach the guide member 5 to (see b).

An upper pulley 10 is attached to the upper bracket 6 with a shaft 9.
The lower bracket 7
A tension arm 12 is supported by a pin 11, and a lower pulley 14 is rotatably supported by the tension arm 12 by a shaft 13.

The upper bracket 6 is provided with a cover portion 6a along the outer periphery of the upper pulley 10, and the tension arm 1
2 is provided with a cover portion 12a along the outer periphery of the lower pulley 7 to prevent wires 15 (described later) from coming off the upper and lower pulleys 6 and 7, respectively.

As shown in FIG.
A drum body 7, which has both ends fixed thereto, is fixed to a drum shaft 19 rotatably supported by a casing 18, and a brake spring 24 is attached to the drum shaft 9.
is provided, and the wire 15 is moved in both directions by operating a handle 20 attached to the drum shaft 19.

The drum 16 has holes 18a in the casing 18,
..., 18a to attach it to the door inner plate 8.

The lower bracket 7 has a
As shown in FIG. b, an opening 21 is provided through which the extension 12b of the tension arm 12 is inserted.
A spring 22 is stretched between the extension part 12b inserted through the lower bracket 7, and the tension arm 12
is biased in the wire tensioning direction A, and the opening 2
1 is provided with a temporary locking step portion 21a for locking the extension portion 12b of the tension arm 12, which is swung in the non-tensioning direction B, at the relevant position.

The screw holes 7a of the lower bracket 7 are aligned with the extensions 12a of the tension arm 12 in the non-tensioned position, so that when the lower bracket 7 is attached to the door inner plate 8, As shown, when the screw 23 is engaged and the screw tip pushes down the extension part 12b, it is removed from the temporary locking part 21a.

Incidentally, the upper bracket 6 side or both may have the same structure as the lower bracket 7 and the tension arm 12.

If the window regulator is configured as described above, the tension arm 12 is temporarily locked in the non-tensioned position B and the wire 15 is
As shown in FIG. 2, the wire 15 can be left slack by moving the drum 16 toward the guide member 5 without applying any tension to the wire 15.

Therefore, since the shape is miniaturized, it is easy to handle and can be inserted into the inner diameter of the door inner plate 8 even through the small opening 8a (see FIG. 1) of the door inner plate 8 during installation work.

After inserting the drum 16 into the door inner plate 8, first fix the drum 16 to the door inner plate 8 from the outside with screws through the holes 18a, and then insert the upper bracket 6 into the screw holes 6a.
Secure with screws in the same way.

Finally, when the lower bracket 7 is fixed with the screw 23 through the screw hole 7a, the tip of the screw 23 pushes down the extension part 12b of the tension arm 12 and removes it from the temporary locking step part 21a. is swung in the tensioning direction A by the biasing force of the spring 22, and the wire 15 is stretched in a triangular shape between the upper and lower pulleys 10, 14 and the drum 16.
Installation work is completed.

As is clear from the above explanation, this invention uses a spring member to bias the support member of the pulley in the wire tensioning direction, and temporarily locks the support member in the non-stretched position before mounting it on the vehicle body. When installing, the support member is unlocked using the car body mounting screws and the wire is stretched, so there is no need to tension the wire before installing it to the car body, and the shape is It becomes smaller and easier to handle and install.

Furthermore, since the conventional coil members and brackets are not required, the cost is reduced and the weight is also reduced.

[Brief explanation of the drawing]

Figure 1 is a front view of the window regulator after being attached to the vehicle body, Figure 2 is a front view of the window regulator before being attached to the vehicle body, Figure 3 is a sectional view of the drum,
Fig. 4a is a front view of the tension arm in the non-tensioned position, Fig. 4b is a side view of Fig. 4a, Fig. 5a is a front view of the tension arm in the tensioned position, Fig. 5b is a side view of FIG. 5a; 1...door, 2...window glass, 4...
Holding member, 5... Guide member, 6... Upper bracket, 7... Lower bracket, 8... Door inner plate, 1
0...Upper pulley, 12...Tension arm, 1
4... Lower pulley, 15... Wire, 16... Drum, 22... Spring, 23... Screw, A... Tensioning direction (position), B... Non-tensioning direction (position).

Claims (1)

[Claims for Utility Model Registration] (1) A guide member that guides the window glass holding member up and down, upper and lower pulleys that are attached to the upper and lower parts of the guide member via support members, and lateral parts between the upper and lower pulleys. A window regulator is provided with a drum disposed in the upper and lower pulleys, and a wire stretched in a triangular shape between the drum and upper and lower pulleys, and in which a holding member is moved up and down via the wire by rotation of the drum. A spring member is provided on at least one of the support members to urge the support member in the wire tensioning direction, and a temporary locking portion that locks the support member in the non-stretched position before installation on the vehicle body is attached to the guide member. 1. A window regulator for an automobile, characterized in that the support member is disposed on the side and is released from the support member by screwing with a screw for mounting the vehicle body. (2) The automotive window regulator according to claim 1, wherein each of the supporting members also serves as a cover for preventing the wire from coming off the pulley.