Window regulator

Abstract

To provide a window regulator in which a slide-contact piece that slidably contacts the base part of a guide rail can be prevented from being caught in a concave connection part formed on the base part.SOLUTION: A window regulator comprises a carrier plate 11 to support a window glass, a guide rail 12 to slidably support the carrier plate 11, and lift means to move the carrier plate 11 up and down along the guide rail 12. The guide rail 12 comprises a base part 31 that extends in the lifting / lowering direction of the window glass, a right-side plate part 32 and a left-side plate 33 which both stand on the base part 31, and a concave connection part 35 formed on the base part 31. The carrier plate 11 has a slide-contact piece 46 formed so as to slidably contact the base part 31. The slide-contact piece 46 has a slide-contact part 52, which slidably contacts the base part 31, formed being larger than the concave part 35a of the concave connection part 35 and straddling the entire area of the concave part 35a.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a window regulator. [Background technology]

[0002] Conventionally, there has been a window regulator in which a carrier plate is provided with a sliding contact piece that slides against the base of a guide rail (see Patent Document 1). This window regulator includes a carrier plate that supports the window glass, a guide rail that slidably supports the carrier plate, a closing wire and an opening wire that pull the carrier plate, a wire drive device that drives the closing wire and the opening wire, and a pulley attached to the upper end of the guide rail via a pulley bracket. In this window regulator, the sliding contact piece is provided on the carrier plate, which makes it possible to reduce rattle of the carrier plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-177836 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional window regulators, when a concave joint is formed in the guide rail by joining the guide rail to the pulley bracket using a TOX (registered trademark) joint or the like, there is a problem in that the tip of the sliding contact piece falls into the recess of the concave joint and gets caught when the window glass is raised or lowered. When the sliding contact piece gets caught in the concave joint, it generates abnormal noise and causes improper raising and lowering.

[0005] Therefore, an object of the present invention is to provide a window regulator that can prevent the sliding contact piece that slides against the base of the guide rail from getting caught in the concave joint formed in the base. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention provides a window regulator comprising a carrier plate that supports a window glass, a guide rail that supports the carrier plate so that it can slide freely, and a lifting means for raising and lowering the carrier plate along the guide rail, wherein the guide rail has a base extending in the direction in which the window glass is raised and lowered, a side plate portion erected from the base, and a concave joint portion formed in the base, and wherein the carrier plate is formed with a sliding piece that slides against the base, and the sliding portion of the sliding piece that slides against the base is larger in the width direction of the base than the concave portion of the concave joint and is formed so as to span the entire area of ​​the concave portion. [Effects of the Invention]

[0007] The window regulator according to the present invention can prevent the sliding contact piece that slides against the base of the guide rail from getting caught in the concave joint formed in the base. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic front view showing a window regulator according to an embodiment of the present invention and a vehicle door to which the window regulator is attached. [Figure 2] FIG. 2(a) is a front view showing the window regulator when the window glass is in an open state, and FIG. 2(b) is a front view showing the window regulator when the window glass is in a closed state. [Figure 3] (a) is an end view of the guide rail and pulley bracket taken along line A-A' in Figure 2(a), (b) is an end view of the carrier plate, guide rail and pulley bracket taken along line B-B' in Figure 2(b), and (c) is an end view of the carrier plate, guide rail and pulley bracket taken along line C-C' in Figure 2(b). [Figure 4]1A is a front view, FIG. 1B is a plan view, and FIG. 1C is a back view showing a carrier plate. [Figure 5] 1A is a side view showing a carrier plate, and FIG. 1B is a rear perspective view showing the carrier plate. [Figure 6] 1A and 1B are a rear view and a side view, respectively, showing the sliding contact piece. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a window regulator according to one embodiment of the present invention will be described with reference to the accompanying drawings. This window regulator is a lifting device that is attached to the inside of a vehicle door provided in a vehicle (e.g., an automobile) and lifts and lowers the window glass of the vehicle door. In particular, this window regulator has a sliding contact piece that slides against the base of the guide rail and is shaped so that it does not get caught on a concave joint formed in the base. Hereinafter, the direction in which the vehicle window glass is lifted and lowered will be simply referred to as the lifting and lowering direction. Also, hereinafter, left and right, front and rear, and up and down will be defined as shown in each drawing. In this embodiment, it is assumed that the lifting and lowering direction coincides with the up and down direction of the window regulator, and that the vehicle width direction coincides with the front and rear direction of the window regulator. Also, the direction perpendicular to the lifting and lowering direction and the vehicle width direction is referred to as the left and right direction of the window regulator.

[0010] (Window regulator configuration) 1 and 2, a window regulator 10 is attached to a vehicle door 1 and includes a carrier plate 11 that supports a window glass W, a guide rail 12 that supports the carrier plate 11 so that it can slide in the raising and lowering direction, an ascending wire 13 and a descending wire 14 that pull the carrier plate 11, a drive unit 15 that is provided at the lower end of the guide rail 12 and drives the ascending wire 13 and the descending wire 14, and a pulley 16 that is provided at the upper end of the guide rail 12 via a pulley bracket 17 and changes the direction of the ascending wire 13. In other words, the window regulator 10 is a wire-driven window regulator that raises and lowers the carrier plate 11 using the wires 13 and 14, and is also a bottom rail-type window regulator in which the drive unit 15 is disposed at the lower end of the guide rail 12. The ascending wire 13, the descending wire 14, and the drive unit 15 are an example of a lifting means that raises and lowers the carrier plate 11 along the guide rail 12.

[0011] One end of the ascending-side wire 13 is connected to a rotating drum 22 (described later) of the drive unit 15, is fed upward from the drive unit 15 to the pulley 16, is redirected downward by the pulley 16, and then the other end is attached to the carrier plate 11. On the other hand, one end of the descending-side wire 14 is connected to the rotating drum 22 of the drive unit 15, is fed upward from the drive unit 15, and the other end is attached to the carrier plate 11. In this embodiment, a thin rail with a small width is used as the guide rail 12, so when viewed from the front-to-rear direction, the ascending-side wire 13 and the descending-side wire 14 do not overlap with the guide rail 12, and are arranged with a positional deviation in the left-to-right direction relative to the guide rail 12.

[0012] 2, the drive unit 15 has a motor 21, a cylindrical rotating drum 22 that is rotationally driven by the motor 21 and rotates to wind and unwind the ascending-side wire 13 and the descending-side wire 14, a reducer (not shown) that transmits the rotation of the motor 21 to the rotating drum 22, a drum housing 23 into which the lower end of the guide rail 12 is fitted and which rotatably houses the rotating drum 22, and a motor housing 24 that holds the motor 21. The motor housing 24 incorporates the reducer and is fixed to the drum housing 23 so as to cover the drum housing portion of the drum housing 23.

[0013] When the motor 21 is driven in the forward direction, the rotating drum 22 rotates in the forward direction, and accordingly, the descending side wire 14 is unwound while the ascending side wire 13 is wound up. As a result, the carrier plate 11 is pulled by the ascending side wire 13 and moves upward in the lifting / lowering direction. As a result, the window glass W attached to the carrier plate 11 rises. On the other hand, when the motor 21 is driven in the reverse direction, the rotating drum 22 rotates in the reverse direction, and accordingly, the ascending side wire 13 is unwound while the descending side wire 14 is wound up. As a result, the carrier plate 11 is pulled by the descending side wire 14 and moves downward in the lifting / lowering direction. As a result, the window glass W attached to the carrier plate 11 falls. As a result, the carrier plate 11 and the window glass W rise and fall along the guide rails 12 (raising and lowering operation of the window glass W).

[0014] The pulley bracket 17 is made of a metal plate and rotatably supports the pulley 16. The pulley bracket 17 is disposed so as to overlap the rear side of the upper end of the guide rail 12, and is joined to the guide rail 12 by a TOX joint.

[0015] The guide rail 12 is formed by bending a long metal plate toward the outside of the vehicle compartment at a predetermined curvature, and is disposed inclined rearward in the vehicle front-rear direction relative to the vehicle door 1.

[0016] 2 and 3 , the guide rail 12 integrally includes a plate-shaped base 31 having a width in the left-right direction and extending in the elevation direction; a right side plate 32 extending in the elevation direction and erected forward from the right end of the base 31 in the width direction; a left side plate 33 extending in the elevation direction and erected forward from the left end of the base 31 in the width direction; and a right flange 34 extending in the elevation direction and projecting rightward from the front end of the right side plate 32. The right flange 34 is formed substantially parallel to the base 31. The right side plate 32 is a side plate on the reference side, and the guide rail 12 slidably supports the carrier plate 11 mainly by the right side plate 32. The right side plate 32 and the left side plate 33 are examples of side plates.

[0017] Furthermore, two concave joints 35 are formed in the center of the upper end of the base 31 in the left-right direction by TOX joining to the pulley bracket 17. Each concave joint 35 has a recess 35a that extends from the front face of the base 31 to the rear face.

[0018] (Carrier plate configuration) As shown in Figures 4 and 5, the carrier plate 11 is made of resin (for example, polyacetal resin) and has a plate-shaped main body 40, two mounting holes 41, 41 formed on the left and right ends of the main body 40, a rail sliding portion 42 formed toward the right of the center of the rear side of the main body 40, an ascending side wire mounting portion 43 formed to the right of the rail sliding portion 42 on the main body 40, a descending side wire mounting portion 44 formed to the right of the ascending side wire mounting portion 43 on the main body 40, a flange sliding fin 45 formed in the center of the rear side of the main body 40, and a pair of upper and lower sliding contact pieces 46, 46 formed above and below the flange sliding fin 45 on the main body 40 and in sliding contact with the base 31 of the guide rail 12.

[0019] The two mounting holes 41, 41 are for mounting two glass holders (not shown) fixed to the window glass W. By mounting the two glass holders fixed to the window glass W in the respective mounting holes 41, 41, the window glass W is mounted to the carrier plate 11 via the two glass holders.

[0020] One end of the ascending side wire 13 is attached to the ascending side wire attachment portion 43. On the other hand, one end of the descending side wire 14 is attached to the descending side wire attachment portion 44. In other words, the carrier plate 11 is configured to be pulled upward in the ascending / descending direction by the ascending side wire 13 via the ascending side wire attachment portion 43, and to be pulled downward in the ascending / descending direction by the descending side wire 14 via the descending side wire attachment portion 44.

[0021] The rail sliding portion 42 slides on the right side plate portion 32 of the guide rail 12. As the rail sliding portion 42 slides on the right side plate portion 32, the carrier plate 11 is supported on the guide rail 12 so as to be slidable.

[0022] The flange sliding fin 45 is formed in an arc shape with the rear side convex, and slides on the right flange portion 34 of the guide rail 12.

[0023] (Configuration of sliding contact piece) As shown in Figures 3(b), 3(c) and 6, each sliding piece 46 has an arm portion 51 that has a width in the left-right direction (the width direction of the guide rail 12) and extends rearward, and a sliding portion 52 that is formed at the tip of the arm portion 51 and slides against the base 31 of the guide rail 12.

[0024] The arm 51 is formed to tilt upward, and presses the sliding contact portion 52 against the base 31 like a leaf spring, causing the sliding contact portion 52 to slide against the base 31. By causing the sliding contact portion 52 of the sliding contact piece 46 to slide against the base 31 in this way, rattle (rotational rattle) of the carrier plate 11 in the front-to-rear direction can be suppressed. This makes it possible to suppress fluttering of the carrier plate 11 and the window glass W in the front-to-rear direction when the window glass W is raised or lowered. In addition, a pair of notches are formed on the left and right sides of the arm 51 in the middle part in the longitudinal direction, and the springiness of the arm 51 is adjusted to be an optimum value for pressing the sliding contact portion 52 against the base 31.

[0025] The sliding contact portion 52 is formed in an arc shape extending upward from the tip of the arm portion 51 and has a width in the left-right direction (the width direction of the base portion 31). The sliding contact portion 52 has a width dimension equivalent to the front surface of the base portion 31, is larger than the recess 35a of the concave joint portion 35 in the width direction, and is formed so as to straddle the entire recess 35a. That is, the sliding portion of the sliding contact portion 52 is larger than the recess 35a of the concave joint portion 35 in the width direction and is formed so as to straddle the entire recess 35a. As a result, even when the sliding contact portion 52 is positioned on the concave joint portion 35, the left and right ends of the sliding contact portion 52 contact the front surface of the base portion 31 and straddle the recess 35a of the concave joint portion 35. Therefore, when the carrier plate 11 passes over the concave joint portion 35 during the raising and lowering operation of the window glass W, it is possible to prevent a part or all of the sliding contact portion 52 from falling into the recess 35a.

[0026] (Actions and Effects of the Embodiments) As described above, according to the configuration of the above embodiment, the sliding portion of the sliding contact piece 46 is larger than the recess 35a of the concave joint 35 in the width direction of the base 31 and is formed so as to straddle the entire area of ​​the recess 35a, so that when the carrier plate 11 passes over the concave joint 35, the sliding portion 52 of the sliding contact piece 46 straddles the entire area of ​​the recess 35a. Therefore, a part of the sliding portion 52 does not fall into the recess 35a, and the sliding contact piece 46 can be prevented from getting caught on the recess 35a. This makes it possible to suppress the generation of abnormal noise and improper lifting and lowering caused by the concave joint 35.

[0027] Furthermore, by joining the guide rail 12 and the pulley bracket 17 by press joining (caulking), chip grinding and peeling work can be eliminated compared to a configuration in which joining is performed by welding, thereby improving the productivity of the window regulator 10. Furthermore, compared to welding, etc., power consumption during joining can be reduced, and there are no sparks or smoke generated during welding, which improves the production environment for the window regulator 10.

[0028] (Other embodiments) Although the embodiments of the present invention have been described above, the invention according to the claims is not limited to the above-described embodiments. It should be noted that not all of the combinations of features described in the embodiments are necessarily essential to the means for solving the problems of the invention. The present invention can be implemented by modifying it as appropriate within the scope of its spirit.

[0029] For example, in the above embodiment, the sliding portion 52 (sliding portion) of the sliding piece 46 was configured to have a width equal to that of the front surface of the base 31, but it is sufficient that the sliding portion 52 (sliding portion) is larger in the left-right direction than the recess 35a of the concave joint 35 and is formed so as to span the entire area of ​​the recess 35a, and the width dimension of the sliding portion 52 (sliding portion) of the sliding piece 46 may be configured to be smaller than that of the front surface of the base 31.

[0030] Furthermore, in the above embodiment, the guide rail 12 is configured to have a right flange portion 34, but it may be configured not to have the right flange portion 34, or may be configured to further have a left flange portion extending to the left side from the front end of the left side plate portion 33.

[0031] In the above embodiment, the guide rail 12 has both the right side plate portion 32 and the left side plate portion 33, but it may have only one of the right side plate portion 32 and the left side plate portion 33. In fact, it may have neither the right side plate portion 32 nor the left side plate portion 33.

[0032] Furthermore, in the above embodiment, the carrier plate 11 is configured to have two sliding contact pieces 46, one above the other, but may have only one sliding contact piece 46. [Explanation of symbols]

[0033] 10: window regulator, 11: carrier plate, 12: guide rail, 13: rising wire, 14: falling wire, 15: drive unit, 31: base, 32: right side plate portion, 33: left side plate portion, 35: concave joint portion, 35a: recess, 46: sliding contact piece, 51: arm portion, 52: sliding contact portion, W: window glass

Claims

[Claim 1] a carrier plate supporting the window glass; a guide rail that slidably supports the carrier plate; a lifting means for lifting and lowering the carrier plate along the guide rail, The guide rail has a base portion extending in the lifting direction of the window glass, a side plate portion erected from the base portion, and a concave joint portion formed in the base portion, The carrier plate is formed with a sliding piece that is in sliding contact with the base portion, A window regulator characterized in that the sliding portion of the sliding piece that slides against the base is larger in the width direction of the base than the recess of the concave joint and is formed so as to span the entire area of ​​the recess.

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