JP2919769B2 - Window glass elevating device and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window glass elevating device for elevating and lowering a window glass for automobiles using a wire, and a manufacturing direction thereof.

[0002]

2. Description of the Related Art Conventionally, as this type of elevating device, for example, a device described in Japanese Utility Model Application Laid-Open No. 56-54162 is known.

[0003] Such an elevating device connects a windowpane to a wire ("rope" in the publication) laid between a total of three pulleys, and moves the wire in the axial direction to raise and lower the windowpane. And three pulleys are provided on each of the three brackets individually attached to the door panel. One of the three pulleys is provided so as to be position-adjustable with respect to the corresponding bracket, and the position adjustment causes the wire to be tensioned. The pulley is aligned along the direction of tensioning the wire by turning a screw threaded into place on the corresponding bracket.

[0004]

Generally, in an elevating device that raises and lowers a window glass using a wire, the wire is loosened in a totally assembled state due to variations in the accuracy of each component and the assembling accuracy. Hereinafter, the initial amount of slack of the wire is referred to as “initial elongation amount”. The slack of the wire causes rattling when the window glass is moved up and down, and therefore needs to be removed.

[0005] In this respect, the above-mentioned conventional lifting device is
After the three brackets are individually attached to the door panel and the wires are tensioned, the initial elongation of the wire is determined by the position of one pulley after attaching the three brackets to the door panel, that is, after assembling the lifting device to the door panel. The adjustment will remove it. Alternatively, by adjusting the mounting positions of the three brackets with respect to the door panel, the initial elongation of the wire is removed.

However, removing the initial slack of the wire after assembling the elevating device as in the former case is troublesome, and adjusting the mounting position of the bracket as in the latter is difficult in assembling the elevating device itself. There is a problem that workability is deteriorated. Further, in this conventional technique, the screw is moved in a direction in which the wire is tensioned, so that the force for tightening the wire and the force for tightening the screw need to be substantially the same. In such a case, the wires may be over-tensioned, which may cause breakage of the wires and the like, and in this respect, there is a problem that the assembling workability is deteriorated.

An object of the present invention is to improve the workability of assembling the elevating device itself and the workability of assembling the elevating device to a vehicle body or the like, since the initial slack of the wire can be removed before the assembling device itself is assembled. An object of the present invention is to provide a glass elevating device and a manufacturing method thereof.

[0008]

According to the present invention, there is provided a window glass elevating / lowering apparatus, comprising: a carrier for supporting the window glass; a guide rail for movably guiding the carrier; and a pair of guide rails attached to both ends of the guide rail. In a window glass elevating / lowering apparatus comprising: a wire guide member, a wire wound between the pair of wire guide members and connected to the carrier, and a driving unit for moving the wire in an axial direction. One of the wire guide members is held by a bracket, and at an opposing position where the bracket and the guide rail are relatively displaced to each other until a predetermined tension is applied to the wire, at an opposing portion between the bracket and the guide rail, And a pair of connecting portions that can be integrally connected from directions substantially orthogonal to each other.

According to the method for manufacturing a window glass elevating device of the present invention, a carrier for supporting a window glass, a guide rail for movably guiding the carrier, and a pair of wire guide members attached to both ends of the guide rail are provided. A method for manufacturing a windowpane lifting / lowering apparatus, comprising: a wire wound between the pair of wire guide members and connected to the carrier; and driving means for moving the wire in an axial direction. One of the pair of wire guide members is held by a bracket, the other of the pair of wire guide members is attached to the guide rail, and after the wire is wrapped between the pair of wire guide members, a predetermined The bracket and the guide rail are relatively displaced until a tension is applied, and in the displaced position, The opposing portion in a direction substantially perpendicular to the bracket and the guide rail, characterized in that integrally coupled.

[0010]

According to the present invention, a predetermined tension is applied to a wire after holding one of a pair of wire guide members on which a wire for driving a windowpane is hung over a bracket and attaching the other of the wire guide members to a guide rail. At a position where the bracket and the guide rail are relatively displaced so that the bracket and the guide rail are opposed to each other, the opposing portions of the bracket and the guide rail are integrally coupled from each other in a direction substantially orthogonal to the displacing direction.

[0011]

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

A slider 3, which is slidably guided by a guide rail 2 having a substantially U-shaped cross section, is provided on a carrier plate 1.
3 (see FIG. 2) is attached. The guide rail 2 of the present example is inclined as shown in FIG. 1 when the side door is viewed from the side, and when viewed from the rear, the upper part is inside the vehicle as shown in FIG. 2 (right side in FIG. 1). The shape is curved toward. Attachment brackets 4 and 5 are attached to the upper and lower ends of the guide rail 2.
(See FIG. 2).

Further, first and second brackets 10 and 20 and a third bracket 30 are attached to upper and lower ends and an intermediate portion of the guide rail 1, respectively.
First and second wire guides 11 and 21 as a pair of wire guide members are attached to the brackets 10 and 20. As will be described later, the second bracket 20 is attached at three points P1, P2, and P3 at opposing portions of the flat extension portion 20A (flat portion) and the flat bottom portion 2A (flat portion) of the guide rail 1. This is performed by integrally connecting P3.

The first wire guide 11 is a rotatable guide pulley, and a guide groove 11A having a V-shaped cross section in which the first wire W1 is hung is formed on the outer peripheral surface thereof. The first bracket 10 has a guide groove 1.
1A to prevent the wire W1 from coming off.
A guide member 12 is provided for guiding a portion of the wire W1 that enters and exits 1A to the guide groove 11A. On the other hand, the second
The wire guide 21 has a substantially semicircular shape in a plane, and a guide groove 21A having a V-shaped cross section in which the second wire W2 is hung is formed in a plane arc-shaped peripheral surface portion. Also,
The second bracket 20 is provided with guide bodies 22, 22 for guiding a portion of the wire W2 entering and leaving the guide groove 21A to the guide groove 21A.

As shown in FIGS. 4 and 5, the second wire guide 21 is formed with a hole 21B that fits into the cylindrical portion 20B of the second bracket 20, and a retaining piece 21C. , One part 21C is inserted into the hole 20C of the second bracket 20.
By turning the second wire guide 21 after passing through (see FIG. 3), the second wire guide 21 is connected to the second bracket 20 and is prevented from coming off. A positioning jig 51 described later is provided inside the cylindrical portion 20B.
(See FIG. 5).

The third bracket 30 has a wire W
1. A drum 31 around which W2 is wound, and the drum 3
A motor 32 for rotating the motor 1 is provided. By these drum 31 and motor 32, wire W
Drive means A for moving the motor in the axial direction.

The first wire W1 has one end W1-1 side wound around the drum 31 and an intermediate portion W1-3, W1-4 between the other end W1-2 and the first wire guide 11 connected thereto. In the guide groove 11A. Second wire W2
Are intermediate portions W2-3 and W2-4 between one end W2-1 and the other end W2-2.
Is hooked on the guide groove 21 </ b> A of the second wire guide 21. The other ends W1-2 and W2-2 of the wires W1 and W2 are
The carrier plate 1 is connected to a stretching mechanism 40 provided at a fixed position. The extension mechanism 40 has an axis O
The first and second arms 41 and 42 are rotatably supported in the directions of arrows X1 and X2 and Y1 and Y2 around the center 1 and O2. , W2-2 are connected to wire ends E1 and E2. The rotation ranges of the arms 41 and 42 are regulated by stoppers (not shown), and torsion coil springs 43 and 44 are provided around the axes O1 and O2. One end 43A of the spring 43 is locked at a fixed position on the carrier plate 1, and the other end 43B is
And urges the arm 41 in the direction of arrow X1. Similarly, one end 44A of the spring 44 is locked at a fixed position on the carrier plate 1, and the other end 44B is locked at the base end of the arm 42, and urges the arm 42 in the direction of arrow Y1.

In the lifting device constructed as described above, the window glass moves up and down along the guide rail 2 together with the carrier plate 1 by rotating the drum 31 in the directions of arrows Z1 and Z2. At that time, the slack generated in the wires W1 and W2 is absorbed by the urging forces of the arms 41 and 42 in the directions of the arrows X1 and Y1 by the springs 43 and 44.

By the way, the wires W1 and W2 generated due to the variation in the accuracy of the components of the lifting device and the assembling accuracy.
The “initial elongation” is removed as follows when assembling the lifting device.

First, in a state where the carrier plate 1 and the first and third brackets 10 and 30 are mounted on the guide rail 2 and the second bracket 20 is not yet mounted, the drum 31 and the first and second wires are not mounted. Wires W1 and W2 are extended between the guides 11 and 21 and the extension mechanism 40 of the carrier plate 1. At that time, the second wire guide 21 has already been attached to the second bracket 20.

Then, as shown in FIG. 5, a jig 51 installed at a fixed position in the space S of the second bracket 20 is provided.
And the second bracket 20 is positioned at a fixed position. Thereafter, the guide rail 2 is moved in the direction of arrow B in FIGS. 3 and 4, that is, the wires W1 and W2 while the flat extension 20A of the second bracket 20 and the flat bottom 2A of the guide rail 2 are overlapped. Are shifted in the pulling direction, and a predetermined tension is applied to the wires W1 and W2 so as to obtain the initial elongation.

FIG. 6 (a) shows a state in which a predetermined tension is applied to the wires W1 and W2 to obtain an initial elongation.
As shown in (b), using a die 52 and a punch 53,
At three locations P1, P2, and P3, the second bracket 2
The overlapping portion between the 0 extension portion 20A and the bottom portion 2A of the guide rail 2 is plastically deformed from the thickness direction, and they are integrally joined. Such a coupling method is called press-fitting. Since this pressure caulking integrally couples the second bracket 20 and the guide rail 2 from a direction substantially perpendicular to the arrow B direction in which the guide rail 2 is shifted to apply tension to the wires W1 and W2, The bonding force does not affect the tension of the wires W1 and W2, and the wires W1 and W2 are not over-tensioned by the bonding force. Also,
These can be easily combined, and the assembling work of the lifting device itself can be improved.

As described above, when the second bracket 20 is attached to the guide rail 2, the elevating device is naturally attached to the door panel P in order to take the initial elongation of the wires W1 and W2. At this point in time, the initial elongation of the wires W1, W2 has been removed. Therefore, there is no trouble to remove the initial elongation of the wires W1 and W2 after attaching the lifting device to the door panel P. Removing the initial elongation of the wires W1 and W2 also reduces the load on the stretching mechanism 40, and the stretching mechanism 40 can be reduced in size accordingly. Moreover, in this example, since the second bracket 20 is attached to the guide rail 2 by press-fitting and crimping, the workability of the attachment, and furthermore, the workability of assembling the elevating device are good, and the number of parts does not increase. Further, the first and third brackets 30 may be attached to the guide rail 2 by similar press-fitting. Further, instead of the two wires W1 and W2, their ends W1-1 and W1-1
It is also possible to use one wire having a form in which 2-1 are connected to each other.

[0024]

As described above, according to the present invention, one of the pair of wire guide members on which the window glass driving wire is wound is held by the bracket, and the other of the pair of wire guide members is attached to the guide rail. At a position where the bracket and the guide rail are relatively displaced in order to apply a predetermined tension to the wire, the opposing portions of the bracket and the guide rail are integrally joined from a direction substantially orthogonal to the displacing direction. Therefore, it is possible to remove the initial slack of the wire before assembling the elevating device itself, thereby improving the assembling workability of the elevating device itself and the assembling workability of the elevating device to a vehicle body or the like.

[Brief description of the drawings]

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

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is an enlarged front view of a main part of the elevating device shown in FIG.

FIG. 4 is a perspective view of a main part shown in FIG. 3;

FIG. 5 is a sectional view taken along the line VV of FIG. 3;

FIG. 6 is a sectional view of a main part for describing a method of connecting the guide rail and the second bracket shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrier plate 2 Guide rail 2A Bottom part (facing part) 10, 20, 30 Bracket 20 Extension part (facing part) 11, 21 Wire guide (wire guide member) 31 Drum 32 Motor 51 Positioning jig 52 Dice 53 Punch A Driving means W1, W2 Wire

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E05F 11/48

Claims (4)

(57) [Claims] 1. A carrier for supporting a window glass, a guide rail for movably guiding the carrier, a pair of wire guide members attached to both ends of the guide rail, and a hook between the pair of wire guide members. In a window glass elevating / lowering apparatus including a wire passed and connected to the carrier, and a driving unit for moving the wire in an axial direction, one of the pair of wire guide members is held by a bracket, and A pair of pairs that can be integrally connected to a portion facing the guide rail from a direction substantially orthogonal to the direction of the shift at a position where the wires are relatively shifted until a predetermined tension is applied to the wire. A window glass elevating / lowering device comprising a connecting portion. 2. The window glass elevating device according to claim 1, wherein the pair of connecting portions are flat plate portions that can be integrally connected by press-fitting and crimping in a thickness direction. 3. A carrier for supporting a window glass, a guide rail for movably guiding the carrier, a pair of wire guide members attached to both ends of the guide rail, and a hook between the pair of wire guide members. What is claimed is: 1. A method for manufacturing a window glass elevating / lowering apparatus, comprising: a wire passed and connected to the carrier; and a driving unit for moving the wire in an axial direction, wherein one of the pair of wire guide members is held by a bracket. The other of the pair of wire guide members is attached to the guide rail, and after the wire is laid between the pair of wire guide members, the bracket and the guide rail until a predetermined tension is applied to the wire. Relative to the bracket, and at the shifted position, the bracket and the front are substantially perpendicular to the shifting direction. A method of manufacturing a window glass elevating / lowering apparatus, wherein an opposing portion to the guide rail is integrally joined. 4. The manufacturing apparatus according to claim 3, wherein the opposing portions of the bracket and the guide rail are integrally joined by press-fitting and crimping in a thickness direction. Method.