JPH08270314A - Lift device of window glass - Google Patents

Abstract

PURPOSE: To raise and lower a window glass smoothly by rotatably supporting a guide pulley as wire guide member securely without increasing the number of parts. CONSTITUTION: A shaft section 12A which supports a guide pulley 11 rotatably is provided and protrudes in a guide member 12 for preventing coming-off of a wire from the guide pulley 11 on which the wire is stretched over. A hole section 10B which fits in a tip of the shaft section 12A is formed in a bracket 10 as base member on which the guide member 12 is attached to support substantially both ends of the shaft section 12A which becomes a support shaft of the guide pulley 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window glass raising / lowering device for raising / lowering an automobile window glass or the like using a wire.

[0002]

2. Description of the Related Art Generally, as an elevating device of this type, for example, an elevating device which is incorporated in a side door of an automobile to elevate a side window glass is provided between a pair of vertically arranged wire guide members. Strand the wire, connect the carrier plate that supports the window glass to the wire,
Then, by moving the wire in the axial direction, the window glass is moved up and down together with the carrier plate. As the wire guide member, a rotatable guide pulley having a wire guide groove formed on the outer peripheral surface thereof, or a guide block for guiding while sliding the wire is used. The former guide pulley is used particularly when the tension of the wire is large and a high power transmission efficiency is required for the wire, and the outer peripheral portion thereof is provided with a guide member for preventing the wire from coming off.

Conventionally, in an elevating device using such a guide pulley, the base end of a shaft serving as the rotation axis of the guide pulley is assembled by means such as caulking, and the guide pulley is attached at the tip of the shaft. It is designed to be pivotally supported.

On the other hand, Japanese Patent Laid-Open No. 5-280247 discloses a means for moving a wire in the axial direction.
A drum in which a wire is wound and driven to rotate is described. The drum is rotatably held between a housing and a casing attached to the housing. The casing functions as a guide member for preventing the wire from coming off from the outer peripheral portion of the drum, and a locking pin as a rotary shaft of the drum is provided in a protruding manner. The locking pin rotatably supports the drum by inserting the tip of the locking pin into a locking pin receiving hole on one side of the drum.

[0005]

However, in the former case where the shaft as the rotating shaft of the guide pulley is assembled by means such as caulking, the guide member for preventing the shaft and the wire from coming off. As a result, the number of parts was increased and the assembly was troublesome. Moreover, since the shaft is a so-called cantilever in which only the base end portion is fixed, there is a risk that the guide pulley rattles due to the shaft runout, which hinders the smooth movement of the window glass.

Further, if the structure for axial support of the drum described in the latter Japanese Patent Laid-Open No. 5-280247 is applied to axially support such a guide pulley, the casing will be In addition to the function as the guide member for preventing the wire from coming off, the locking pin protruding from the casing also has the function as the shaft of the guide pulley. However, since the locking pin that functions as the shaft is a so-called cantilever, there is a possibility that the guide pulley is loosened due to the shaft runout, as in the former case.

An object of the present invention is to provide a window glass raising / lowering device capable of smoothly raising and lowering a window glass by positively supporting a guide pulley as a wire guide member without increasing the number of parts. To do.

[0008]

SUMMARY OF THE INVENTION A window glass lifting device according to the present invention comprises a carrier for supporting the window glass, a guide pulley arranged at a predetermined distance from each other, and at least one of which is rotatably supported by a base member. A pair of wire guide members, a wire hung between the pair of wire guide members and connected to the carrier, and a drive unit for moving the wire in the axial direction. A guide member that is attached to the base member and that is located outside the guide pulley to prevent the wire from coming off; and a guide member that is provided on one side of a facing portion between the base member and the guide member. It is characterized in that it is provided with a shaft portion that rotatably supports the pulley and a hole portion that is provided on the other side of the facing portion and that fits into the tip of the shaft portion.

[0009]

According to the window glass raising / lowering device of the present invention, the guide member for preventing the wire from coming off from the guide pulley around which the wire is wound and the base member to which the guide member is attached face each other on one side. A shaft portion that rotatably supports the guide pulley is provided in a projecting manner, and a hole portion that fits with the tip of the shaft portion is formed on the other side to substantially form the shaft portion that serves as the support shaft of the guide pulley. As both ends are supported, the shaft runout is prevented and the window glass is smoothly moved up and down.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. The present embodiment is an example of application as an elevating device for a window glass that is mounted on a side door of an automobile, and the window glass is supported by a carrier plate 1.

On the carrier plate 1, a slider 3, which is slidably guided by a guide rail 2 having a substantially U-shaped cross section, is provided.
3 (see FIG. 2) is attached. The guide rail 2 of this example is inclined as shown in FIG. 1 in a side view of the side door, and when the side door is viewed from the rear, the upper portion is inside the vehicle as shown in FIG. 2 (right side in the figure). The shape is curved toward. Mounting brackets 4 and 5 are attached to the upper and lower ends of the guide rail 2, and the brackets 4 and 5 serve to guide the guide rail 2 to the door panel P.
(See Figure 2).

Further, the first and second brackets 10 and 20 and the third bracket 30 are attached to the upper and lower end portions and the intermediate portion of the guide rail 1, respectively.
A guide pulley 11 and a guide block 21 as a pair of wire guide members are attached to the brackets 10 and 20, respectively.

As shown in FIGS. 4 and 5, the guide pulley 11 is formed with a guide groove 11A having a substantially V-shaped cross section on the outer peripheral surface thereof, and a shaft hole 11B is formed at the center thereof. Reference numeral 12 denotes a guide member, and a shaft portion 12A projecting from the lower portion thereof is fitted into a shaft hole 11B of the guide pulley 11 to rotatably support the guide pulley 11. The guide member 12 has a claw portion 12B-1,
Two elastic mounting pieces 12B, 12B having 12B-1
Are formed, and they are elastically deformed
The brackets 10 are fitted into the square holes 10A, 10A, and the claw portions 12B-1, 12B-1 are fitted in the square holes 10A, 10A.
By being hooked on the inner edge of A, the guide member 12 is attached to the fixed position of the first bracket 10 as shown in FIG. In FIG. 3, the upper square hole 10A is formed as a cutout portion that is opened upward in FIG. The first bracket 10 is formed with a hole 10B that fits with the tip of the shaft 12A when the guide member 12 is attached. In the case of this example, two slits 12A-1 as shown in FIG. 3 are formed 180 ° apart from each other at the tip end of the shaft portion 12A, and only the portion corresponding to the slits 12A-1 is allowed. By utilizing the change in the outer diameter of the shaft portion 12A, the tip of the shaft portion 12A is press-fitted into the hole portion 10B.

A skirt portion 12C having a substantially semi-arcuate shape is formed on the outer peripheral portion of the guide member 12 so as to surround the outer peripheral portion of the guide pulley 11. The skirt portion 12C prevents the first wire W1 described later from coming off. . Further, guide portions 12D, 12D for guiding the portion of the wire W1 coming in and out of the guide groove 11A of the guide pulley 11 are formed at both ends of the skirt portion 12C. In the guide portion 12D, the bottom inclined surface 12D-1 and the side inclined surface 1 are used as restriction surfaces for restricting the position of the wire W1 in consideration of the deflection of the wire W1 as the carrier plate 1 moves up and down.
2D-2 and the like are formed.

On the other hand, the guide block 21 has a substantially semicircular shape in a plane, and a guide groove 2 having a V-shaped cross section on which a second wire W2, which will be described later, is hung on a peripheral surface portion of the plane arc shape.
1A is formed. Further, the second bracket 20 is provided with guide bodies 22, 22 for guiding the portion of the wire W2 coming in and out of the guide groove 21A into the guide groove 21A.

The wire W is attached to the third bracket 30.
Drum 31 around which W1 and W2 are wound, and its drum 3
A motor 32 for rotating 1 is provided. By the drum 31 and the motor 32, the wire W
A drive means A for moving the vehicle in the axial direction is configured.

A portion of the first wire W1 on the one end W1-1 side is wound around the drum 31, and intermediate portions W1-3 and W1-4 between the other end W1-2 and the other end W1-2 are guided by the guide pulley 11. It is hung on the groove 11A. A part of the second wire W2 on the one end W2-1 side is wound around the drum 31, and intermediate parts W2-3 and W2-4 between the second wire W2 and the other end W2-2 are formed in the guide groove 21A of the guide block 21. It is hung. The other ends W1-2 and W2-2 of the wires W1 and W2 are connected to a stretching mechanism 40 provided at a fixed position of the carrier plate 1. In the extension mechanism 40, the first and second arms 41 and 42 centering on the shaft centers O1 and O2 are indicated by arrows X1 and X, respectively.
2 and is rotatably supported in the Y1 and Y2 directions,
The wire ends W1-
Wire ends E1 and E2 of W2 and W2-2 are connected. The rotation range of these arms 41, 42 is restricted by a stopper (not shown), and the axes O1, O2
Torsion coil springs 43 and 44 are provided around the. One end 43A of the spring 43 is locked at a fixed position of the carrier plate 1, and the other end 43B is locked at the base end of the arm 41 to urge the arm 41 in the arrow X1 direction. Similarly, one end 44A of the spring 44 is locked in place on the carrier plate 1 and the other end 44B is fixed to the arm 42.
Is locked to the base end of the arm 42 to urge the arm 42 in the arrow Y1 direction.

In the elevator thus constructed, the drum 31 is driven to rotate in the directions of arrows Z1 and Z2, so that the window glass moves up and down along with the guide rail 2 together with the carrier plate 1. At that time, the shaft portion 12A that pivotally supports the rotating guide pulley 11 has its lower end fitted and positioned in the hole portion 10B of the first bracket 10, and is substantially so-called both-ends support. The carrier plate 1 moves up and down smoothly without causing shaft runout.

Further, the skirt portion 12C of the guide member 12
The wire W1 is prevented from coming off the guide groove 11A of the guide pulley 11, and the guide groove 11A
The portion of the wire W1 that moves in and out is properly guided by the guide portions 12D and 12D regardless of the vertical position of the carrier plate 1. Also, the first and second wires W
1, the slack of W2, the arm 41 by the spring 43,44,
It is absorbed by the urging force of the arrow 42 in the X1 and Y1 directions. Further, since such a guide member 12 also has a function as a support shaft of the guide pulley 11 by its shaft portion 12A, the number of parts is reduced and the configuration can be reduced as compared with the case where the support shaft is specially provided. It is possible to realize simplification and improvement in assembling workability.

By the way, in this embodiment, since the tension of the wire W1 is large during the raising / lowering operation of the window glass, the guide pulley 11 is used as the upper wire guide member, while the second wire during the raising / lowering operation of the window glass is used. Since the tension of W2 is small, the guide block 21 is used as the lower wire guide member. Of course, the guide pulley 11 may be used as the lower wire guide member.

Incidentally, contrary to the above embodiment, the shaft portion 12A may be provided on the first bracket 10 side so as to project, and the hole portion 10B may be formed on the guide member 12 side. Further, by forming the square hole 10A and the hole portion 10B in the guide rail 2, the first
Instead of the bracket 10, the guide rail 2 may be used as a base member, and the guide pulley 11 may be provided between the guide rail 2 and the guide member 12. In that case, the shaft 12A may be provided so as to project toward the guide rail 2 and the hole 10B may be formed at the guide member 12 side.
Further, instead of the two wires W1 and W2, it is also possible to use one wire in a form in which one ends W1-1 and W2-1 thereof are connected to each other.

[0022]

As described above, the window glass raising / lowering device of the present invention includes the guide member for preventing the wire from being detached from the guide pulley around which the wire is wound, and the base member to which the guide member is attached. At the opposite part of
Since a shaft portion that rotatably supports the guide pulley is provided on one side and a hole portion that fits with the tip of the shaft portion is formed on the other side, the shaft portion that serves as the support shaft of the guide pulley is formed. As both ends are supported substantially, the shaft runout can be prevented, the window glass can be smoothly moved up and down, and the guide member or the base member also has a function as a support shaft of the guide pulley. The number of parts can be reduced, the configuration can be simplified, and the assembling workability can be improved as compared with the case of being prepared for.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a view on arrow II in FIG.

FIG. 3 is an enlarged sectional view of a main part taken along line III-III in FIG.

FIG. 4 is an exploded perspective view of a guide pulley portion shown in FIG.

5 is a perspective view of a partial cutout in a combined state of the guide pulley and the guide member shown in FIG. 4. FIG.

[Explanation of symbols]

 1 Carrier Plate 2 Guide Rail 10 Bracket (Base Member) 10B Hole 11 Guide Pulley (One Wire Guide Member) 12 Guide Member 12A Shaft 21 Guide Block (Other Wire Guide Member) 31 Drum A Drive Means W1, W2 Wire

Claims (2)

[Claims] 1. A pair of wire guide members, which are spaced apart by a predetermined distance from a carrier supporting a window glass, and at least one of which is a guide pulley rotatably supported by a base member, and the pair of wire guides. A windowpane elevating and lowering device including a wire that is bridged between members and connected to the carrier, and a drive unit that moves the wire in an axial direction, the device being attached to the base member and outside the guide pulley. A guide member that is located at a position to prevent the wire from coming off; a shaft portion that is provided so as to project from one side of a facing portion of the base member and the guide member and that rotatably supports the guide pulley; An elevating / lowering device for a window glass, which is provided on the other side of the portion and has a hole portion that fits into the tip of the shaft portion. 2. The regulating surface for regulating the position of the portion of the wire that moves in and out of the guide pulley is provided on at least one of the base member and the guide member. Window glass lifting device.