JP2006009528A - Wire-type window regulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire-type window regulator less in secular deterioration of a driving wire in the wire-type window regulator moving window glass vertically by the driving wire. <P>SOLUTION: The wire-type window regulator is provided with at least a pair of wire guide members provided in an upper position and a lower position in a vehicular door; the driving wire wound around the upper and lower wire guide members and connected to the window glass through a wire end between the upper and lower directions of the upper and lower wire guide members; and a normal-reverse winding drive unit for winding the driving wire on one side and delivering it on the other side to vertically move the window glass. The wire end has a mounting part mounted to the window glass, and a wire holding part extended in an opposite direction from the mounting part to insert and fix the driving wire. The wire holding part is provided with a diameter enlarged hole for releasing the driving wire being gradually separated from the driving wire in a direction of pulling the driving wire to the outside of the wire holding part from a fixing part for holding the driving wire inside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wire-type window regulator, and more particularly to a structure of a portion for coupling a drive wire to a window glass.

The wire type window regulator arranges the wire guide members 110 and 120 above and below the vehicle door regardless of the raising / lowering guide in the vehicle door of the window glass, while winding the drive wire 132 on the middle portion on the one hand. On the other hand, a forward / reverse winding drive device 130 is arranged, and the vertical end of the drive wire 132 extending between the upper and lower wire guide members 110 and 120 is fixed to the window glass 150 (FIG. 7). The present applicant has previously proposed a wire end 140 for fixing a vertical portion of the drive wire 132 that moves the window glass 150 up and down (FIG. 8, Patent Document 1). The wire end 140 has an annular portion 142 having a fixing hole 141 at the center, and a wire holding portion 143 having a driving wire 132 therein and extending vertically around the annular portion 142. The wire end 140 is fixed to the window glass 150 via a bolt or the like penetrating the fixing hole 141.
Japanese Patent Laid-Open No. 2002-206371

  The drive wire 132 is embedded in the wire holding part 143 by insert molding of a resin material or cast molding of a metal material. When the drive wire 132 is pulled in a direction away from the straight line connecting the wire guide members 110 and 120, the drive wire 132 receives a shearing force from the contact angle portion 144 of the wire holding portion 143 (FIG. 9). . Therefore, the wire end 140 can only be applied to a wire-type window regulator for window glass that moves linearly in parallel with the extending direction of the wire holding portion 143.

  Therefore, the present invention has been made with the object of providing a wire-type window regulator in which the window glass is moved up and down by a drive wire, and the drive wire has little deterioration over time.

  The present invention that achieves this object is wrapped around at least a pair of wire guide members provided in an upper position and a lower position in a vehicle door, and the upper and lower wire guide members, and the upper and lower wire guide members are arranged in the vertical direction. A wire-type window equipped with a drive wire that is locked to the window glass via a wire end, and a forward / reverse winding drive device that winds up the drive wire on one side and moves the window glass up and down. In the regulator, the wire end includes a mounting portion that is mounted on the window glass, and a wire holding portion that extends in a direction opposite to the mounting portion and into which the driving wire is inserted and fixed. The holding part gradually moves away from the driving wire in the direction of pulling out from the fixing part that holds the driving wire inside to the outside of the wire holding part. That it comprises a diameter holes to release the drive wire, the has a feature.

  The profile of the longitudinal section of the diameter-enlarged hole has a curved shape that is convex inward and has a gradually increasing curvature from the fixed part side toward the opening direction. The shape is preferably a curved shape that is continuous with the curved shape.

The wire end has an annular portion having a fixing hole at the center as a mounting portion, and is pivotally supported with respect to the window glass by an axis passing through the fixing hole.
Each wire holding portion of the wire end protrudes from the annular portion in the diameter direction.
More practically, the wire end is formed of a synthetic resin material, and the drive wire is insert-molded into a fixed portion that is continuous with the diameter expansion hole of the wire holding portion. Alternatively, it is made of a cast metal material, and the drive wire is cast and fixed in a fixed portion connected to the diameter-expanded hole in the wire holding portion.

  The drive wire can be prevented from coming out of the wire end when the drive wire is circulated at least once in the non-cutting drive wire connected in the wire holding portion and the annular portion or in the annular portion.

  According to the present invention, even if the direction of the drive wire drawn out from the wire end connected to the window glass changes or swings, it does not receive a shearing force or the like from the enlarged diameter hole. That is, even if the wire end does not move on a straight line connecting the upper and lower wire guide members, or even if the drive wire is twisted or pulled in the twisting direction, the drive wire does not receive a shearing force or the like from the wire end. Therefore, the drive wire is not cut.

  1 to 3 show a first embodiment in which a wire type window regulator according to the present invention is applied to a single wire type. As shown in FIG. 1, a guide pulley (wire guide member) 12 is rotatably supported by a shaft 11 on an upper bracket 10 that is fixed upward in a vehicle door (panel), and is fixed downward. 20, a guide pulley (wire guide member) 22 is rotatably supported by a shaft 21. The upper bracket 10 and the lower bracket 20 are usually fixed to the inner panel of the vehicle door.

  A winder bracket 30 is fixed inside the vehicle door in front of the upper bracket 10 and the lower bracket 20 and at the approximate center in the height direction of the brackets 10 and 20. A winding drum 31 of a forward / reverse winding drive device is rotatably supported by the winding device bracket 30. As is well known, the winding drum 31 is rotationally driven forward and backward by an electric drive unit or a manual handle.

  A drive wire 32 is wound between the guide pulley 12, the guide pulley 22 and the winding drum 31. When the drive wire 32 is viewed around the winding drum 31, both ends of the drive wire 32 wound around the winding drum 31 are directed toward the guide pulley 12 of the upper bracket 10 and the guide pulley 22 of the lower bracket 20. After being wound around the guide pulley 12 and the guide pulley 22, the guide pulley 12 and the guide pulley 22 are guided in directions approaching each other, and the respective end portions 32 c are fixed to the wire end 40. Between the winding device bracket 30 and the upper bracket 10 and the lower bracket 20, an upper and lower outer cable 33 in which a drive wire 32 is inserted so as to be relatively slidable is disposed. One end is fixed to the winding device bracket 30, and the other end is fixed to the upper bracket 10 and the lower bracket 20.

  As shown in FIG. 2, the wire end 40 includes an annular part 42 having a fixing hole 41 at the center part, and a wire fixing cylinder that extends substantially symmetrically in the diameter direction from the outer peripheral surface of the annular part 42. And a wire-shaped portion (wire holding portion) 43. A cutting end portion 32c of the driving wire 32 guided by the guide pulley 12 and a cutting end portion 32c of the driving wire 32 guided by the guide pulley 22 are respectively connected to the fixing portions 43a in the upper and lower wire fixing cylindrical portions 43. Inserted and fixed to the fixing portion 43a. Inside the wire fixing cylindrical portion 43, there is an enlarged diameter hole 43b for gradually increasing the inner diameter in the direction in which the driving wire 32 is pulled out from each fixing portion 43a and releasing the driving wire 32 gradually away from the driving wire 32. Is formed. It is preferable that the contour of the longitudinal section of the diameter-enlarged hole 43b is a curved shape that is convex inward and gradually increases in curvature from the fixed portion 43a side toward the opening direction. According to this configuration, even if the drive wire 32 swings or the wire end 40 moves in a direction deviating from the straight line connecting the guide pulleys 12 and 22, the drive wire 32 extends from the fixed portion 43a along the inner surface of the enlarged diameter hole 43b. Therefore, the driving wire 32 is hardly subjected to a shearing force. Furthermore, it is preferable to process the opening edge of the enlarged diameter hole 43b into a smooth curve by connecting the curved shape of the enlarged diameter hole 43b to the outer peripheral surface. Even if the wire end 40 moves in a direction far from the straight line connecting the guide pulleys 12 and 22, the drive wire 32 bends along the curved surface, so that the shearing force acting on the drive wire 32 is small.

  On the other hand, a glass channel 51 having a glass insertion groove 52 is fixed to the lower end portion of the window glass 50 guided up and down by the vehicle door, and a fixing hole for fixing the wire end 40 is provided in the glass channel 51. 53 is formed.

  The drive wire 32 that reaches the take-up drum 31 via the guide pulley 12 and the drive wire 32 that reaches the take-up drum 31 via the guide pulley 22 are usually divided at the take-up drum 31 portion, and at the end thereof. , And a retaining protrusion for coupling with the take-up drum 31. The pair of drive wires 32 are wound around the take-up drum 31 as a whole as a series of annular drive wires via the retaining protrusions, and when the take-up drum 31 is rotated in the forward and reverse directions, 32 is wound up on the one hand and fed out on the other hand, and circulates around the guide pulleys 12 and 22. Accordingly, the wire end 40 to which the drive wire 32 is fixed, that is, the window glass 50 is pulled by the drive wire 32 to move upward (close direction) or descend (open direction). Such a winding structure and procedure of the drive wire 32 are well known.

  When assembling, the wire type window regulator having the above configuration fixes the upper bracket 10, the lower bracket 20, and the winding device bracket 30 in the vehicle door, and between these guide pulley 12, guide pulley 22, and winding drum 31. Next, the drive wire 32 having the wire end 40 is wound. Further, the window glass 50 having the lower end inserted into the glass insertion groove 52 and fixed to the glass channel 51 is inserted between the inner panel and the outer panel of the vehicle door. Then, the positions of the fixing hole 41 of the wire end 40 and the fixing hole 53 of the glass channel 51 are aligned, and the fixing wire 54 is inserted and fixed to both the fixing holes 41 and 53, thereby coupling the drive wire 32 and the window glass 50. can do. The connection between the wire end 40 and the glass channel 51 by the fixing screw 54 may be configured such that the wire end 40 can swing around the fixing screw 54.

  According to the configuration of the wire end 40 in this wire type wind regulator, the drive wire 32 extending in the opposite direction from the wire end 40 does not contact the inner surface of the enlarged diameter hole 43b in a normal state. When the winding wire 31 rotates and the driving wire 32 circulates and moves the window glass 50 up and down, for example, if the driving wire 32 tilts or twists due to vibration, the twist is small. The drive wire 32 contacts the curved surface of the enlarged diameter hole 43b in the vicinity of the fixed portion 43a (FIG. 4). When the twist or the like becomes large, the driving wire 32 gradually and smoothly contacts the curved surface of the diameter expansion hole 43b from the adjacent portion of the fixing portion 43a toward the outside, so that a shearing force or the like acts on the driving wire 32. There is no. Depending on the shape of the window glass 50 and the like, the movement trajectory of the wire end 40 may deviate from the straight line connecting the guide pulleys 12 and 22 when the window glass 50 moves near the top dead center or near the bottom dead center. However, in this case as well, the drive wire 32 gradually and smoothly contacts the curved surface of the enlarged diameter hole 43b from the adjacent portion of the fixed portion 43a toward the outside, so that a shearing force or the like may act on the drive wire 32. Absent. As described above, according to the wire type window regulator of the present embodiment, there is little deterioration over time of the drive wire, and there is no fear of cutting or the like.

  Further, the wire-type window regulator provided with the wire end 40 has a structure in which any one of the guide pulley 12, the guide pulley 22 and the wire end 40 is offset in the axial direction, or the window glass 50 is top dead. The present invention can be applied to a structure in which the wire end 40 moves off the straight line connecting the guide pulley 12 and the guide pulley 22 between the point (closed position) and the bottom dead center (open position).

  In the illustrated embodiment, the extension of the drive wire 32 drawn in the opposite direction from the wire end 40 passes through the center of the fixing hole 41, but may be configured to pass through a position away from the center.

  In the above embodiment, the wire end 40 serves to couple the pair of drive wires 32, but a mode in which a series of drive wires 32 are embedded and fixed in the wire end 40 is also possible. FIG. 5 shows that the drive wire 32 embedded in the upper and lower wire fixing cylindrical portions 43 of the wire end 40 by insert molding of a resin material or casting of a metal material is passed through the annular portion 42 as an uncut drive wire 32 ′. It is an embodiment. FIG. 6 is an embodiment in which the non-cutting drive wire 32 ′ is embedded in the annular portion 42 ′ by rotating it around the fixing hole 41 ′. In any of the embodiments, the diameter-expanded holes 43b and 43b ′ whose diameter gradually increases in the opening direction in which the non-cutting drive wire 32 ′ is drawn out from the embedded fixing portion in the wire fixing cylindrical portions 43 and 43 ′. Is provided.

1 is a front view showing a first embodiment of a wire-type window regulator according to the present invention. It is a disassembled perspective view of the wire end of the wire type window regulator of FIG. 1, and its peripheral part. It is the side view which looked at the wire end of FIG. 2 from the arrow III direction. It is a side view which shows a state when one of the drive wires extended in the opposite direction from the wire end of the embodiment inclines from the wire extension direction. It is a perspective view which shows another embodiment of the wire end. It is a perspective view which shows another embodiment of the wire end. It is a front view which shows the conventional wire type window regulator. It is a perspective view of the wire end used for the conventional wire type window regulator. In the conventional wire type window regulator, it is a perspective view which shows a state when one of the drive wires extended in the opposite direction from a wire end inclines from the wire extension direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Upper bracket 12 22 Guide pulley 20 Lower bracket 30 Winding device bracket 31 Winding drum 32 Drive wire 32c Cutting end 33 Outer cable 40 Wire end 41 Fixing hole 42 Annular part 43 Wire fixing cylindrical part (wire holding part)
43a Fixing part 43b Expanding hole 50 Window glass 51 Glass channel 52 Glass insertion groove 53 Fixing hole 54 Fixing screw

Claims (8)

At least a pair of wire guide members provided at an upper position and a lower position in the vehicle door, and the window glass wound around the upper and lower wire guide members and between the upper and lower directions of the upper and lower wire guide members via a wire end In a wire type window regulator provided with a forward / reverse winding drive device that winds up and moves the window glass by winding up the drive wire on one side and winding the drive wire on the other side,
The wire end includes a mounting portion that is mounted to the window glass, and a wire holding portion that extends in a direction opposite to the mounting portion and into which the drive wire is inserted and fixed.
The wire holding portion includes a diameter-enlarged hole for gradually releasing the drive wire from the drive wire in a direction of pulling out the wire holding portion from a fixed portion holding the drive wire inside; A wire type window regulator. In the wire type window regulator according to claim 1, the contour of the longitudinal section of the diameter-expanded hole is a curved shape that is convex inward and gradually increases in curvature toward the opening direction from the fixed portion side, The wire type window regulator which made the longitudinal cross-sectional shape of the opening edge part of the said diameter expansion hole the curve shape connected to the said curve shape. 3. The wire type window regulator according to claim 1, wherein the wire end has an annular portion having a fixing hole at the center as the mounting portion, and swings with respect to the window glass by an axis passing through the fixing hole. A wire-type window regulator that is pivotally supported. 4. The wire type window regulator according to claim 3, wherein each of the wire holding portions projects in a diametrical direction from the annular portion. 5. The wire-type window regulator according to claim 4, wherein the wire end is made of a synthetic resin material, and a drive wire is insert-molded in a fixed portion connected to the diameter-enlarged hole of the wire holding portion. 5. The wire type window regulator according to claim 4, wherein the wire end is made of a cast metal material, and the drive wire is cast and fixed in a fixed portion connected to an enlarged diameter hole in the wire holding portion. The wire-type window regulator according to claim 5 or 6, wherein the drive wire is a non-cutting drive wire connected in the wire holding portion and the annular portion. 8. The wire type window regulator according to claim 7, wherein the drive wire circulates at least once in the annular portion.

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