JPH0925765A - Window regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the breakage of a wire end case by connecting the wire end case hooked with the end section of a wire to a slider base provided on a door glass with a mechanical connecting means. SOLUTION: One end section of a wire 9 is coupled with the groove 30c of a wire end case 30. A slide bush 32 having the outer diameter larger than a coil spring 31 and the groove 30c and capable of being kept in contact with the inner wall face of the case 30 is inserted to one end section of the wire 9, and a wire end 33 is fixed by caulking. The other end section of the wire 9 is inserted into the hole 30b of the case 30. A slide bush 35 having the outer diameter larger than the coil spring 31 and capable of being kept in contact with the inner wall face of the case 30 is inserted to the other end section of the wire 9, and a wire end 36 is fixed by caulking. A screw 40 is movably coupled with a guide 6, it is inserted into the hole 27g of a slider base 27 provided on a door glass, and it is screwed to the screw hole 30f of the case 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window regulator that raises and lowers a door glass by using a wire drawn from a drum.

[0002]

2. Description of the Related Art Next, a conventional example will be described with reference to the drawings.
FIG. 6 is an overall configuration diagram of a conventional window regulator, FIG.
FIG. 7 is an exploded perspective view of the slider base in FIG. 6.

First, the overall construction of the window regulator will be described with reference to FIG. In the figure, 1 is a door glass,
2 is an upper base attached to the upper part inside the door panel, 3
Is a lower base mounted on the lower part of the door panel.

A turn guide 4 as an upper guide member is rotatably attached to the upper base 2, and a turn guide 5 as a lower guide member is rotatably attached to the lower base 3.

The upper end of the door 6 is attached to the upper base 2, and the lower end of the door 6 is attached to the lower base 3.
Is a guide provided along the up-and-down direction of which the slider base 7 is slidably engaged.

Reference numeral 8 is a drum around which an intermediate portion of a wire 9 is wound. The drum 8 is rotationally driven by a drive motor or the like (not shown). One end of the wire 9 engages with the turn guide 4 and is locked to a wire end case 7f provided on the slider base 7. The other end of the wire 9 engages with the turn guide 5 and is locked to a wire end case portion 7f described later.

Next, a detailed description around the slide base will be given with reference to FIG. In the figure, 7a and 7b are resin slider portions which are formed on the slider base 7 made of metal by the outsert molding method and which are slidably engaged with the guide 6. Further, the slider base 7 is provided with holes 7c, 7d, 7e for mounting the door glass 1.

Further, a resin wire end case portion 7f is formed on the slider base 7 by an outsert molding method. The wire end case portion 7f is a box body having an open top surface, and has substantially U-shaped grooves 7g, 7 on the side surface.
h is formed.

Then, both ends of the wire 9 have grooves 7g,
The slide bush 1 is inserted into the wire 7h and has a diameter larger than the widths of the grooves 7g and 7h at both ends of the wire 9 and is capable of contacting the inner wall surface of the wire end case portion 7f.
Nos. 1 and 12 are fixed to prevent them from coming off.

Further, at both ends of the wire 9 of this conventional example,
Springs 13 and 14, one end of which can contact the slide bushes 11 and 12 and the other end of which can contact the inner wall surface of the wire end case portion 7f, are provided to wind the wire 9. Absorbing slack.

The open upper surface of the wire end case portion 7f is covered with a lid 16 fixed by using a pin 15 crimped into a hole 7i formed in the slider base 7.

Next, the operation of the above configuration will be described. When the drum 8 is rotated, one side of the wire 9 is wound around the drum 8 and the other side of the wire 9 is paid out from the drum 8. By this movement of the wire 9, the slider base 7 on which the wire 9 is locked moves along the guide 6, and the door glass 1 moves up and down.

[0013]

However, in the window regulator having the above structure, the tension of the wire 9 is constantly applied to the wire end case portion 7f, and in addition to that, the impact is generated when the window regulator is activated or stopped. Load acts.

When such a window regulator is used in a high temperature and high humidity environment, since the wire end case 7f is made of resin, it is particularly close to the grooves 7g and 7h of the wire end case 7f with which the wire 9 engages. Cracks are likely to occur and breakage is likely to occur.

Further, the coefficient of thermal expansion of the metallic slider base 7 and the coefficient of thermal expansion of the resin wire end case portion 7f formed on the slider base 7 by the outsert molding method are greatly different. Since the window regulator is provided in the door panel having a large temperature difference (for example, 100 ° C.), thermal stress acting on the wire end case portion 7f made of resin is likely to cause the wire end case portion 7f to be broken such as a crack. .

Further, since the wire end case portion 7f is a resin that deteriorates over time, the older it is, the more likely it is that it will break. The present invention has been made in view of the above problems, and a first object thereof is to provide a window regulator in which the wire end case is not broken.

A second object of the present invention is to provide a window regulator which can reduce the number of parts. Further, a third object of the present invention is to provide a window regulator capable of sharing components.

[0018]

A window regulator of the present invention which solves the above-mentioned problems is a window regulator which raises and lowers a door glass by using a wire drawn from a drum. The window regulator is provided along the ascending and descending direction of the door glass. Guides, a slider base slidably engaged with the guides, to which the door glass is attached, an upper guide member provided above the guides, and a lower guide member provided below the guides. And a drum around which an intermediate portion of the wire is wound, and one end of the wire that is disposed on the slider base and that engages with the upper guide is locked and engages with the lower guide. Machine for joining a metal wire end case to which the other end side of the wire is locked, and the slider base and the wire end case It is obtained; and a joining means.

In the window regulator of the present invention,
Since the wire end case is made of metal, the resistance to the tensile stress constantly acting on the wire and the impact load at the time of operating and stopping the window regulator is improved.

By using the wire end case as a separate part, the wire end case can be diverted to another vehicle type, and the parts of the wire end case can be shared. Here, examples of the wire end case include a metal casting product and a metal sheet metal product.

The wire end case is a box whose surface facing the slider base is open, so that the slider base has an upper surface, and the wire end case is hermetically sealed by being attached to the slider base. ,
The lid, which was required in the past, is no longer needed, and the number of parts can be reduced.

Further, the wire end case and the slider base are provided with a projection on one side and a hole on the other side with which the projection engages, thereby positioning and stopping rotation of the wire end case.

Further, as an example of a locking structure between the wire and the wire end case, the wire end case is provided so as to be slidable in the hole into which the wire is inserted and the wire end case. A slide bush provided with a hole through which the wire is inserted, a hole in the wire end case, and an end of the wire inserted through the hole in the slide bush, and is set to a diameter larger than the hole in the slide bush. A wire end member and a spring, one end of which abuts on the inner wall surface of the wire end case and the other end of which abuts on the slide bush, and which applies tension to the wire through the slide bush. There is.

As described above, by constantly applying tension to the wire using the spring, the glass can be smoothly moved up and down. Here, a through hole through which the wire is inserted is formed, and a cylindrical portion that can be fitted into the hole of the wire end case, and a flange portion that can abut the peripheral edge of the opening of the hole on the inner wall surface side of the wire end case. By providing the resin spacer made of, it is possible to prevent the wire from slidingly contacting the metal wire end case and being worn.

Further, in order to prevent the load concentration near the through hole of the spacer, it is preferable that the slide bush has a shape capable of abutting on the vicinity of the outer edge of the flange portion of the spacer.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 is an exploded perspective view of a main part of an embodiment of the present invention, FIG. 2 is a view for explaining a wire end case in FIG. 1, (a) is a top view, (b) is a front view, and (c) is a front view. ) Is a bottom view, (d) is a right side view of (b), (e) is a left side view of (b).

The difference between this embodiment and the conventional example shown in FIGS. 6 and 7 lies in the vicinity of the slider base, and the other parts are the same. Therefore, the same parts are designated by the same reference numerals. The description is omitted.

In FIG. 1, the slider base 27 includes:
Similar to the conventional example, resin slider portions 27a and 27b slidably engaged with the guide 6 are formed on the slider base 27 by the outsert molding method. Further, holes 27c, 27d, 27e for attaching the door glass 1 are opened.

Reference numeral 30 is a metal wire end case mounted on the slider base 27 using a mechanical joining means. In this embodiment, the wire end case 30 is made of aluminum die cast.

As shown in FIG. 2, the wire end case 30 has an open surface 30 facing the slider base 27.
It is a box body which is a, a hole 30b into which one end of the wire 9 is inserted on one side surface, and an open surface 3 on the other side surface.
There are provided U-shaped grooves 30c that extend to 0a and engage the other end of the wire 9.

Further, on the lower surface of the wire end case 30, there is formed a linear projection 30d which engages with a long groove 27f formed in the slider base 27 and positions the wire end case 30 and stops rotation. .

Here, the wire 9 and the wire end case 3
The locking structure with 0 will be described. In FIG. 1, one end of the wire 9 engages with the groove 30c of the wire end case 30, has an outer diameter larger than that of the coil spring 31 and the groove 30c, and can abut the inner wall surface of the wire end case 30. Insert the slide bush 32, and wire end 3
3 is fixed by caulking.

Similarly, the other end of the wire 9 is inserted through the hole 30b of the wire end case 30 and has an outer diameter larger than those of the coil spring 34 and the hole 30b and abuts on the inner wall surface of the wire end case 30. A possible slide bush 35 is inserted, and a wire end 36 is fixed by caulking.

Next, the mechanical joining means for joining the wire end case 30 and the slider base 27 will be described. The wire end case 30 is formed with a female screw hole 30f extending from the upper surface toward the slider base 27.

On the other hand, a hole 27g facing the female screw hole 30f is formed on the slider base 27, and the screw 40 is inserted through the hole 27g of the slider base 27 and screwed into the female screw hole 30f of the wire end case 30. By doing so, the wire end case 30 and the slider base 27 are joined.

According to the above structure, the following effects can be obtained. (1) Since the wire end case 30 is made of metal, the resistance to the tensile stress constantly applied by the wire 9 and the impact load at the time of operating and stopping the window regulator is improved.

(2) Since the wire end case 30 is made of metal, deterioration over time is eliminated. (3) Since the slider base 27 and the wire end case 30 are joined by the mechanical joining means, thermal stress due to the difference in thermal expansion coefficient between them does not occur in the wire end case, and the heat of the wire end case 30 does not occur. Elimination of stress damage.

(4) Since the wire end case 30 is a separate part, it can be diverted to another vehicle type, and the wire end case 30 can be used in common. (5) Since the surface of the wire end case 30 facing the slider base 27 is an open surface and has an upper surface, by attaching the wire end case 30 to the slider base 27, the inside of the wire end case 30 is sealed. The lid, which was required in the past, is no longer needed, and the number of parts can be reduced.

(6) Protrusion 30d on the wire end case 30
The long groove 2 in which the protrusion 30d engages with the slider base 27.
By providing 7f, the wire end case 30 can be positioned and prevented from rotating. Therefore, the wire end case 30 can be fixed onto the slider base 27 with the single screw 40.

The present invention is not limited to the above embodiment. Wire end case 30 of the above embodiment
Although the hole 30b is formed on one end face and the groove 30c is formed on the other end face, holes may be formed on both end faces.

Further, the wire end case 30 has a protrusion 30.
Although the long groove 27f in which the projection 30d is engaged is formed in the slider base 27, the projection may be formed on the slider base 27 and the long groove may be formed in the wire end case 27.

Further, although the wire end case 30 of the above-mentioned embodiment is formed with the linear projection 30d, it may have a shape like the wire end case 40 as shown in FIG. In FIG. 3, the wire end case 40 is a box body having an open surface 40a facing the slider base 27, one side surface having a hole 40b into which one end of the wire 9 is inserted, and the other side surface. Each has a U-shaped groove 40c that extends to the open surface 40a and engages with the other end of the wire 9.

Further, the lower surface of the wire end case 30 is engaged with two holes provided in the slider base 27 and having a circular cross section, thereby positioning the wire end case 30 and stopping the rotation. Two circular protrusions 40d are formed.

Reference numeral 40f is a female screw hole for attaching the wire end case 40 to the slider base 27.
Even with such a configuration, the same effects as those of the above-described embodiment can be obtained, and the processing of the protrusion 40d is simpler than that of the linear protrusion 30d.

Further, although the open surface of the wire end cases 30 and 40 in the above embodiment is the surface facing the slider base 27, it may be the side surfaces of the wire end cases 30 and 40.

Further, the wire 9 and the wire end case 30
The locking structure for and is not limited to the above embodiment. FIG. 4 is a diagram for explaining another locking structure between the wire and the wire end case.

In FIG. 4, a through hole 50a through which the wire 9 is inserted is formed at 50, and a cylindrical portion 50b that can be fitted into the hole 30b (groove 30c) of the wire end case 30 and the inner wall surface side of the wire end case 30 are provided. The spacer is made of resin and includes a flange portion 50c that can come into contact with the peripheral edge of the opening of the hole 30b (groove 30c).

By providing the spacer 50 having such a structure in the hole 30b (groove 30c) of the wire end case 30, the metal wire 9 is made into the metal wire end case 3.
It is possible to prevent abrasion and damage by sliding contact with the 0 hole 30b (groove 30c).

Further, it is possible to prevent the slide bushes 32, 35 from coming into contact with the inner wall surface of the wire end case 30 and generating abnormal noise. Further, the spacer 50 is assembled by mounting the hole 30b (groove 30
Even if it is assembled without being inserted into c), by operating the window regulator, the urging force of the springs 31 and 34 naturally causes the hole 30b of the wire end case 30 to be released.
As it is inserted into (groove 30c), it is easy to assemble.

In addition, the slide bush 32 having the above structure,
Since 35 has a substantially conical shape, the slide bushes 32, 3
5 presses the vicinity of the peripheral edge of the through hole 50a of the spacer 50,
The spacer 50 may be destroyed. Therefore, as shown in FIG. 5, by making the shape of the slide bushes 60 and 61 into a shape capable of abutting on the vicinity of the outer edge of the flange portion 50c of the spacer 50, load concentration is eliminated in the vicinity of the through hole 50a of the spacer 50. The destruction of the spacer 50 is also eliminated.

[0051]

As described above, according to the window regulator of the present invention, since the wire end case is made of metal, the tensile stress constantly applied by the wire,
Improves resistance to shock load when the window regulator is activated and stopped.

Further, since the wire end case is made of metal, deterioration over time is eliminated. Since the slider base and the wire end case are joined by the mechanical joining means, thermal stress due to the difference in thermal expansion coefficient between the slider base and the wire end case does not occur in the wire end case, and the wire end case is not destroyed by the thermal stress.

By using the wire end case as a separate part, the wire end case can be diverted to another vehicle type, and the parts of the wire end case can be shared. The wire end case has an upper surface that faces the slider base and has an upper surface. By attaching the wire end case to the slider base, the wire end case is hermetically sealed, eliminating the need for a conventional lid. Therefore, the number of parts can be reduced.

Further, the wire end case and the slider base are provided with a projection on one side and a hole on the other side with which the projection engages, thereby positioning and stopping rotation of the wire end case.

Furthermore, a through hole through which the wire is inserted is formed, and a collar portion that can be fitted into the hole of the wire end case and a collar that can abut on the periphery of the opening of the hole on the inner wall surface side of the wire end case. It is possible to prevent the wire from slidingly contacting the metal wire end case and being worn by providing the resin spacer including the portion.

Further, the slide bush has a shape capable of abutting the vicinity of the outer edge of the flange portion of the spacer, whereby the load concentration in the vicinity of the through hole of the spacer can be prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts of an embodiment of the present invention.

2A and 2B are views for explaining the wire end case in FIG. 1, where FIG. 2A is a top view, FIG. 2B is a front view, and FIG. 2C is a bottom view.
Figure (d) is a right side view of Figure (b), and Figure (e) is a left side view of Figure (b).

3A and 3B are views illustrating a wire end case according to another embodiment of the present invention, in which FIG. 3A is a top view, FIG. 3B is a front view, and FIG.
The figure is a bottom view, (d) is a right side view of (b), (e) is a left side of (b), and (f) is a sectional view taken along line AA of (b).

FIG. 4 is a diagram illustrating a locking structure between a wire end case and a wire according to another embodiment of the present invention.

FIG. 5 is a diagram illustrating a locking structure between a wire end case and a wire according to another embodiment of the present invention.

FIG. 6 is an overall configuration diagram of a conventional window regulator.

7 is an exploded perspective view of the slider base in FIG.

[Explanation of symbols]

 6 Guide 9 Wire 27 Slider base 30 Wire end case 30f Female screw hole 40 Screw

Front page continuation (72) Inventor Toshiyuki Matsumoto 2 Kirihara-cho, Fujisawa-shi, Kanagawa Shiroki Industry Co., Ltd.

Claims (7)

[Claims] 1. A window regulator for raising and lowering a door glass by using a wire drawn from a drum, wherein a guide provided along the up and down direction of the door glass and slidably engaged with the guide, A slider base to which the door glass is attached; an upper guide member provided on the upper portion of the guide; a lower guide member provided on the lower portion of the guide; and a drum around which an intermediate portion of the wire is wound, A metal wire end case that is disposed on a slider base and has one end side of the wire engaged with the upper guide locked and the other end side of the wire engaged with the lower guide locked And mechanical joining means for joining the slider base and the wire end case to each other. 2. The window regulator according to claim 1, wherein the wire end case is a cast metal product or a processed metal sheet metal product. 3. The window regulator according to claim 1, wherein the wire end case is a box body having an open surface facing the slider base. 4. The wire end case and the slider base are provided with a projection on one of them and a hole with which the projection engages with the other to position and lock the wire end case. The window regulator according to any one of 1 to 3. 5. The locking structure between the wire and the wire end case is provided in the wire end case, is provided in a hole into which the wire is inserted, and is slidably provided in the wire end case, A slide bush provided with a hole through which a wire is inserted, a hole of the wire end case, a wire attached to an end of the wire inserted through the hole of the slide bush and having a diameter larger than the hole of the slide bush. And an end member, one end of which is in contact with the inner wall surface of the wire end case and the other end of which is in contact with the slide bush, and which applies tension to the wire through the slide bush. The window regulator according to any one of claims 1 to 4. 6. A cylindrical portion which is formed with a through hole through which the wire is inserted and which can be fitted into the hole of the wire end case, and a collar which can abut against the periphery of the opening of the hole on the inner wall surface side of the wire end case. The window regulator according to any one of claims 1 to 5, further comprising a resin spacer formed of a portion. 7. The window regulator according to claim 1, wherein the slide bush has a shape capable of being brought into contact with a vicinity of an outer edge of a flange portion of the spacer.