TWI721052B - Window regulator - Google Patents

Abstract

A window regulator (10), comprising: a guide rail (11) extending in a vertical direction; a slider base (14) which is configured to be slidably supported by the guide rail, and to which a window glass is fixed; a driving wire (15, 16) connected to the slider base, a wire guide (17) having a winding portion (17g) which is supported at an end of the guide rail and which is configured to be provided at a position where the winding portion (17g) is configured to wind the driving wire at a position being off-set, in a vehicle-width direction, with respect to the guide rail; a driving portion (25) which is configured to ascent or descent the slider base via the driving wire, is provided to prevent the guide rail from being deformed even if the guide rail is made thinner and a cross-sectional shape thereof is varied. The wire guide (17) is supported by the guide rail (11) via at least a stopper portion (11g, 11h) and a pressing portion (11f); the stopper portion is formed on the guide rail in a manner that the stopper portion prevents the wire guide from coming off from the guide rail; the pressing portion is formed on the guide rail in manner that the guide rail is pressed toward the other end thereof; and the pressing portion is positioned on the side of the other end of the guide rail than the stopper portion is positioned off-set, in a vehicle-width direction, on the side of the winding portion than the side of the stopper portion.

Description

Window adjuster

The invention relates to a window regulator for raising and lowering the window glass of a vehicle.

As a known car window adjuster, it has: a guide rail, which extends in the up and down direction; a sliding base supported by the guide rail freely up and down, fixed with a window glass: a pair of drive wires extending up and down from the sliding base; A pair of upper and lower wire guide members guide the pair of driving wires; and a driving means (driving motor) that drives a pair of driving wires guided by the upper and lower wire guide members (Patent Document 1).

In this type of window regulator, at least one of the upper and lower wire guide members is supported at the end of the rail. The same way the rail is separated from the upper and lower ends of the rail due to the space problem in the door (the wire guide member is The inner position of the extension direction of the guide rail) is fixed to the door panel (inner panel) via a fixing bracket (panel fixing part) (the upper and lower ends of the guide rail cannot be fixed to the door panel).

【Prior Technical Literature】

【Patent Literature】

[Patent Document 1] JP 2012-246671 A

As vehicles are required to be lighter, the window regulators are also required to be lighter. As a means of lighter weight, research has been done to reduce the thickness of the metal plates that constitute the guide rails. However, when the guide rail is made thinner, the problem of deformation of the guide rail is newly caused.

That is, at the end of the guide rail, as the window glass rises and falls, tension is applied via the drive wire and the wire guide member. On the other hand, because the fixing position of the guide rail to the door panel is in the inner direction of the extension direction of the guide rail of the wire guide member (take the upper wire guide member as an example, it is located below the same wire guide member). The fixed position of the panel may be deformed in the upper or lower rail. This deformation is caused in the width direction of the vehicle with the fixed position of the door panel as the center, Temporarily referred to as "bow deformation". In addition to thinning, the configuration of wire guides and drive wires, cutting off the ends of the guide rails to change the cross-sectional shape (reducing the cross-sectional coefficient), or the high torque of the drive motor is also the cause of the bow deformation.

Therefore, the object of the present invention is to obtain a vehicle window adjuster in which even if the guide rail is thinned or the cross-sectional shape is deformed, it is difficult to cause "bow deformation" of the guide rail.

A vehicle window adjuster has: a guide rail extending in the up and down direction; a sliding base supported by the guide rail freely up and down, and fixed with a window glass: a drive wire connected to the sliding base; a wire guide, supported At one end of the guide rail, the wire guide has a winding part for winding the driving wire, the winding part deviates from the position of the guide rail in the vehicle width direction; and a driving part that lifts and lowers the sliding base via the driving wire, wherein The wire guide is supported on the guide rail by at least a stop portion and a pressing portion, the stop portion is engaged with the guide rail to prevent the wire guide from deviating from the guide rail in the vehicle width direction, and the pressing portion is engaged with the guide rail to press the guide rail On the other end side of the guide rail, the pressing portion is located closer to the other end side than the stop portion, and is formed at a position that is more deviated to the winding portion side than the stop portion in the vehicle width direction.

In one aspect, the pressing portion is located on a moving plane of the driving wire that moves with the wire guide, or is farther from the stop portion side than the plane.

When the pressing portion is viewed from the front-rear direction of the vehicle, it is preferable that a part of the panel fixing portion that fixes the rail to the door panel overlaps the position in the vertical direction.

In one embodiment, the wire guide is composed of a pulley bracket and a pulley that is rotatably supported by the pulley bracket and surrounded by the drive wire. The stop portion includes a pulley shaft, and the pulley and the pulley bracket Supported by the guide rail, the pressing portion is formed on the pulley bracket.

The pulley bracket preferably has: a pulley shaft support portion connected to the pressing portion, positioned in the vehicle width direction such that the stop portion sandwiches the pulley, and is meshed with the pulley shaft, and the pulley shaft connects the pulley shaft support portion Press on the other end side.

The above-mentioned pressing part is actually constituted by a protrusion on one side and a hole engaged with the protrusion on the other side.

According to the present invention, it is possible to obtain a vehicle window adjuster in which even if the guide rail is thinned or the cross-sectional shape is deformed, it is difficult to cause "bow deformation" of the guide rail.

10: Window adjuster

11: Rail

11a: bottom wall

11b, 11c: two side walls

11c1: Height gradient wall

11c2: high side wall

11c3: Pulley guide wall

11d, 11e: flange wall

11e1: widened flange wall

11e2: wide flange wall

11e3: low flange wall

11e4: inclined wall

11f: biting hole

11g: Pulley pin support hole (wire guide stop part, fixed part)

11h: Pulley bracket support hole (wire guide stop part, fixed part)

12, 13: Fixed bracket (panel fixing part)

12a, 13a: deburring sticks

14: Sliding base

15, 16: drive line

15P: plane

17: Guide pulley (pulley, wire guide)

17a: Shaft pin (pulley shaft, stop pin)

17a1: Small diameter at the tip

17a2: Flange

17a3: bottom hole

17b: Shaft hole

17g: Wire guide groove (winding part)

18: guide piece

20: Tube cover

21, 22: guide tube

25: Drive motor (drive part)

30, 30A: pulley bracket (wire guide)

31: Guide pulley support wall

31a: Pulley pin insertion hole

31b: Fixed protrusion

31c, 31d: reinforcing ribs

32: press arm

32a: Engagement protrusion

32b: Inclined rib

33: Eaves

33a: Eaves cut

34: Guide tube support department

35: Pulley shaft support part (support wall)

35a: Insert support hole

36: Insert into the gap

X, X': meshing part (pressing part)

The first figure is a front view of a window regulator to which the present invention is applied.

The second figure is the rear view of the window regulator.

The third figure is a side view of the window regulator.

The fourth figure is an enlarged view of the IV part of the second figure.

The fifth figure is an enlarged view of the V part of the third figure.

The sixth figure is a cross-sectional view along the VI-VI line of the fourth figure.

The seventh figure is a cross-sectional view along the line VII-VII of the fourth figure.

The eighth figure is a cross-sectional view along the line VIII-VIII of the fourth figure.

The ninth figure is a cross-sectional view along the line IX-IX of the fourth figure.

Figure 10 shows an exploded perspective view of the guide rail and the wire guide member fixed to the guide rail in a state before being fixed.

The eleventh figure is an explanatory diagram showing the relationship between the wire guide member fixed to the rail and the pressing arm (pressing portion) of the wire guide member in a skeleton.

Figure 12 is a diagram corresponding to Figure 4 of another embodiment of the window regulator of the present invention.

Figure 13 is a cross-sectional view of Figure 12 along the line XIII-XIII.

The window regulator 10 shown in the first to third figures is a person who is installed in a door panel (not shown) of a vehicle and lifts and lowers a window glass (not shown). The upper and lower directions indicated by the arrows in the first to third figures correspond to the vertical direction of the vehicle.

The window regulator 10 has a long rail 11, and the rail 11 is fixed to a door panel (inner panel) via fixing brackets 12 and 13 provided at different positions in the longitudinal direction. The fixing brackets (panel fixing parts) 12, 13 are fixed to the inner surface of the guide rail 11 by the deburring rods 12a, 13a. The sliding base 14 supporting the window glass is supported so as to be movable along the longitudinal direction of the guide rail 11. Each end of a pair of driving wires 15 and 16 (the second figure) is connected to the sliding base 14.

The drive wire 15 extends upward from the slide base 14 along the guide rail 11 and is guided by a guide pulley (wire guide) 17 provided in the vicinity of the upper end of the guide rail 11 via a pulley bracket 30. The guide pulley 17 can rotate around a shaft pin (stop pin) 17a, and a wire guide groove (winding portion) 17g (refer to the sixth figure) formed on the outer peripheral surface supports the drive wire 15. The drive wire 16 extends downward from the slide base 14 along the guide rail 11 and is guided by a guide piece 18 provided near the lower end of the guide rail 11. The guide piece 18 is fixed to the guide rail 11, and supports the drive wire 16 so as to advance and retreat along a wire guide groove (not shown) formed in the guide piece 18.

The drive wires 15 and 16 from the guide pulley 17 and the guide piece 18 are inserted through the guide tubes 21 and 22, and are wound around the winding drum (not shown in the figure) provided in the tube cover 20 connected to the guide tubes 21 and 22 ). The cylinder cover 20 is fixed to the door panel (inner panel). The winding drum is rotatably driven by a driving motor (driving part) 25. When the winding drum rotates forwards and backwards, one of the drive wires 15, 16 will wind up the winding drum (winded up by the winding drum), and the other is sent out from the winding drum because of the pair of drive wires The sliding base 14 moves along the guide rail 11 due to the relationship between the traction of 15 and 16 and the slowness. The window glass is raised and lowered in response to the movement of the sliding base 14.

The fourth to tenth figures show the support structure around the guide pulley 17 at the upper end of the guide rail 11. The guide rail 11 is shown most clearly as shown in the fourth and ninth figures, except for the general cross section of the upper and lower ends, it has a bottom wall 11a, two side walls 11b, 11c, and a convex extending outward from the free ends of the two side walls 11b, 11c. The cap-shaped cross section of the edge walls 11d and 11e. Relative to the side wall 11b and the bottom wall 11a are almost perpendicular, the side wall 11c and the bottom wall 11a are not perpendicular and slightly open.

Because the side wall 11c and the flange wall 11e of the guide rail 11 support the guide pulley 17 and the pulley bracket (wire guide) 30, they have different shapes from the vicinity of the fixed bracket 12 to the upper side. In other words, first, the side wall 11c has: a height-gradual wall 11c1 (figure 6), the direction perpendicular to the bottom wall 11a is taken as the height direction, and the height is smoothly raised upward from the vicinity of the fixed bracket 12; the highest height The high side wall 11c2; and the pulley introduction wall 11c3 (same figure), since then the high side wall 11c2 sharply decreases in height.

The flange wall 11e connected to the upper end of the height-gradual wall 11c1 in the height direction passes through the widened flange wall 11e1 that gradually increases in width (the length in the front-rear direction of the vehicle) from the vicinity of the fixed bracket 12 upwards (Figures 4 and 10) It becomes the wide flange wall 11e2, and 11 f (pressing part, deviation support part) is penetrated in the vicinity of the boundary part of the widened flange wall 11e1 and the wide flange wall 11e2. Even in the vicinity of the widened flange wall 11e1 and the wide flange wall 11e2, even in the guide rail 11, the section coefficient with respect to the neutral axis of the vehicle front and rear direction is the largest (section coefficient reinforced part). On the other hand, at the upper end of the height direction of the pulley introduction wall 11c3, a low flange wall 11e3 that is substantially parallel to the bottom wall 11a is formed. The wide flange wall 11e2 and the low flange wall 11e3 are connected by an inclined wall 11e4 (sixth and tenth figures). In the low flange wall 11e3, a pulley pin support hole (wire guide stop part, fixed part) 11g and a pulley bracket support hole (wire guide stop part, fixed part) 11h are penetrated.

The pulley bracket 30 composed of a molded article of synthetic resin material, as shown in the oblique view from the back in the tenth figure, has: a guide pulley support wall 31, which is a flat circular shape on the side of the guide rail bottom wall 11a. Pressing arm (deviation support portion, deviation extension portion) 32 extending downward from the support wall 31; eaves 33 located above and below the guide pulley 17; and the guide tube support portion 34. The lower eaves 33 is connected to the pressing arm 32 as shown in the sixth and tenth figures.

In the guide pulley support wall 31, a pulley pin insertion hole 31a (figure 6) is formed in the center of the guide pulley support wall 31. On the surface of the guide pulley support wall 31 on the low flange wall 11e3 side, a built-in pulley bracket is protrudingly provided. The fixing protrusion 31b of the hole 11h (figures 6 and 10). The pressing arm 32 is formed in a substantially triangular shape with a narrow tip as viewed in a plane, and extends from the pulley pin insertion hole 31a in a direction substantially parallel to the extending direction of the guide rail 11, and an engaging protrusion is formed at its tip to engage the engaging hole 11f 32a. The engagement portion of the engaging hole 11f and the engaging protrusion 32a is in a positional relationship overlapping with a part of the fixed bracket 12 in the vertical direction when viewed from the front-rear direction of the vehicle. In addition, an inclined rib 32 b is formed on the surface of the pressing arm 32 on the side of the guide rail 11, and the inclined rib 32 b abuts against the inclined wall 11 e 4 of the guide rail 11.

On the back surface of the guide pulley support wall 31 of the pulley bracket 30 (the surface on the side of the low flange wall 11e3 of the guide rail 11), a plurality of reinforcing ribs 31c, 31d (seventh to tenth figures) are formed, and the reinforcing ribs 31c, 31d The guide pulley support wall 31 extends in the direction opposite to the eaves 33 and extends in the extension direction of the guide rail 11. This reinforcing rib 31c abuts on the inner surface of the side wall 11c of the guide rail 11, and the reinforcing rib 31d extends along the outer end portion (the end portion opposite to the side wall 11c) of the low flange wall 11e3 of the guide rail 11.

The pulley bracket 30 and the guide pulley 17 are supported by the low flange wall 11e3 of the guide rail 11 as follows. As shown most clearly in the sixth figure, the metal shaft pin 17a is inserted into the shaft hole 17b of the guide pulley 17, and the small diameter portion 17a1 of the front end of the shaft pin 17a is inserted into the pulley pin support hole 11g of the low flange wall 11e3. At the same time, the engaging protrusion 32a of the pressing arm 32 is inserted into the engaging hole 11f, and the fixing protrusion 31b is inserted into the engaging hole 11f. The pulley bracket supports the hole 11h. The shaft pin 17a has a flange portion 17a2 at an end portion opposite to the tip small-diameter portion 17a1, and a bottomed hole 17a3 at the shaft portion. In the state where the riveting jig is inserted into the bottomed hole 17a3, the shaft pin 17a is fixed to the low flange wall 11e3 by riveting the head of the small-diameter front end portion 17a1, and the flange portion 17a2 of the shaft pin 17a is connected to the guide The guide pulley 17 is rotatably supported between the pulley support walls 31 (front end small-diameter portion 17a1, low flange wall 11e3), and the pulley bracket 30 can be fixed to the low flange wall 11e3. The fixing protrusion 31b is thermally fused while being fitted into the pulley bracket supporting hole 11h. This fixing protrusion 31b is also a fixing part of the pulley bracket 30 to the guide rail 11. The drive wire 15 is wound around the wire guide groove 17 g on the circumferential surface of the guide pulley 17, and then is wound around a winding drum provided in the barrel cover 20.

The above-mentioned pulley bracket 30 is fixed to the low flange wall 11e3 (rail 11) at the two positions of the shaft pin 17a and the fixing protrusion 31b (the pulley bracket supporting hole 11h). In this state, the engagement protrusion of the pressing arm 32 Since 32a is fitted in the engaging hole 11f of the guide rail 11 (wide flange wall 11e2), the deformation of the guide rail 11 when pressure is applied downward to the guide pulley 17 via the drive wire 15 is suppressed. Because the fixing bracket 12 is fixed to the door panel by the fixing screw 12b, there is no room for arcuate deformation of the guide rail 11 below the fixing bracket 12, and because the engaging hole 11f of the guide rail 11 engages with the pressing arm 32 The engagement portion of the protrusion 32a is in a positional relationship that overlaps with a part of the fixed bracket 12 in the vertical direction when viewed from the front and rear direction of the vehicle, so the possibility that the rail 11 is bowed is less likely to deform. In addition, as the inclined rib 32b abuts on the inclined wall 11e4, the combined section factor of the neutral axis of the guide rail 11 and the pulley bracket 30 in the longitudinal direction of the vehicle increases, and the deformation of the guide rail 11 can be suppressed. Furthermore, the reinforcing ribs 31c and 31d formed on the back surface of the guide pulley supporting wall 31 also suppress the (arc) deformation of the pulley bracket 30 itself and the arc deformation of the guide rail 11 in the same way.

The effect of preventing deformation of the guide rail 11 due to the engagement of the engaging protrusion 32a with the engaging hole 11f will be described. As shown in Figures 6 and 7, in the present embodiment, the engaging portion (pressing portion) X between the engaging protrusion 32a and the engaging hole 11f is on the end side of the guide pulley 17 where the guide rail 11 does not exist, and is located at the side containing the drive On the plane 15P of the wire 15, the drive wire 15 is wound around the wire guide groove 17 g of the guide pulley 17. That is, the engagement portion (pressing portion) X of the engaging protrusion 32a and the engaging hole 11f is formed in the vehicle width direction more than the pulley pin support hole 11g and the pulley bracket support hole (wire guide stop portion) 11h The position on the 17g side of the deflection wire guide groove (winding part). Therefore, even if the guide pulley 17 is pulled downward by the tension applied to the drive wire 15, the force does not only act as a force that compresses the guide rail 11 (the wide flange wall 11e2) in the up and down direction. The cause of the bow shape deformation. The eleventh figure is a skeleton showing the positional relationship between the engaging portion X of the engaging protrusion 32a and the engaging hole 11f, and the plane 15P including the driving wire 15. If the engaging portion X'of the engaging protrusion 32a and the engaging hole 11f is located (offset) farther from the fixed bracket 12 than the plane 15P including the drive wire 15, a force in the direction opposite to the arcuate deformation acts on the width of the guide rail 11 ( The flange wall 11e2) does not produce bow-shaped deformation.

Figures 12 and 13 show another embodiment of the window regulator of the present invention. The twelfth picture corresponds to the fourth picture, and the thirteenth picture corresponds to the sixth picture. In this embodiment, the shape of the pulley bracket 30A is changed, so in addition to the pulley bracket 30 of the above embodiment, it is integrated with the pressing arm 32 to form a pulley shaft support portion ( Support wall) 35. The pulley shaft support portion 35 becomes parallel to the guide pulley support wall 31, and an insertion gap 36 for the guide pulley 17 is formed between the guide pulley support walls 31. At the front end portion (upper end portion of the figure) of the pulley shaft support portion 35, an insertion support hole 35a for the shaft pin 17a is formed.

On the other hand, the pulley bracket 30A of this embodiment is different from the pulley bracket 30 of the above embodiment in that the eaves cut part 33a (Twelfth figure) which cuts off a part of the eaves part 33 is formed. The guide pulley 17 can be inserted into the insertion slit 36 from this eaves cut part 33a. The other structure is the same as the previous embodiment, and the same parts are given the same symbols.

In this embodiment, when the shaft hole 17b of the guide pulley 17 and the insertion support hole 35a of the pulley shaft support portion 35 are inserted into the insertion slot 36 of the pulley bracket 30A, the shaft pin 17a is inserted, and the tip small diameter portion 17a1 is inserted. The pulley pin insertion hole 31a is inserted into the pulley pin support hole 11g fixed to the guide rail 11 by riveting, the flange portion 17a2 is fitted into the insertion support hole 35a, and both ends of the shaft pin 17a are supported by the pulley bracket 30A at both ends . Therefore, the force applied to the guide pulley 17 via the drive wire 15 can be efficiently transmitted to the guide rail 11 via the pressing arm 32.

The above is the embodiment in which the pulley bracket 30 with the guide pulley 17 is used as the wire guide, but the present invention can also be applied to wire guide members that do not have a guide pulley (such as the guide pieces shown in the first and second figures). 18).

The pressing arm 32 of the above embodiment has a substantially triangular shape viewed in a plane with a narrow tip, and an engaging protrusion 32a inserted into the engaging hole 11f is formed at the front end portion thereof, but the pressing arm can be formed as a substantially rectangular shape in a plan view. . In this aspect, the engaging protrusion 32a may also be provided with two corners of the rectangular pressing arm.

10: Window adjuster

11a: bottom wall

11b, 11c: two side walls

12, 13: Fixed bracket (panel fixing part)

12a: Deburring stick

14: Sliding base

15, 16: drive line

17: Guide pulley (pulley, wire guide)

17a: Shaft pin (pulley shaft, stop pin)

18: guide piece

20: Tube cover

21, 22: guide tube

25: Drive motor (drive part)

30, 30A: pulley bracket (wire guide)

Claims (6)

A vehicle window adjuster has: a guide rail extending in the up and down direction; a sliding base supported by the guide rail freely ascending and descending, and fixed with a window glass; a driving wire connected to the sliding base; a wire guide, supported At one end of the guide rail, the wire guide has a winding part for winding the driving wire, the winding part deviates from the position of the guide rail in the vehicle width direction; and a driving part that lifts and lowers the sliding base via the driving wire; wherein The wire guide is supported on the guide rail by at least a stop portion and a pressing portion, the stop portion is engaged with the guide rail to prevent the wire guide from deviating from the guide rail in the vehicle width direction, and the pressing portion is engaged with the guide rail to press the guide rail The portion that engages with the pressing portion is to the other end side of the rail; the pressing portion is formed on the other end side of the rail closer than the stop portion, and the pressing portion is formed at a position where the rail The portion meshing with the pressing portion is more deviated to the winding portion side in the vehicle width direction than the portion meshing with the stop portion of the guide rail. The window regulator according to claim 1, wherein the pressing portion is located on a moving plane of the drive wire that moves with the wire guide, or is farther from the stop portion side than the plane. The window regulator according to claim 1 or 2, wherein when the pressing part is viewed from the front and rear direction of the vehicle, a part of the panel fixing part that fixes the guide rail to the door panel overlaps with a position in the up and down direction. The window adjuster described in item 1 or 2 of the scope of patent application, wherein: the wire guide is composed of a pulley bracket and a pulley that is rotatably supported by the pulley bracket and surrounds the drive wire, The stop portion includes a pulley shaft that supports the pulley and the pulley bracket on the guide rail, and the pressing portion is formed on the pulley bracket. The window regulator described in item 4 of the scope of patent application, wherein: the pulley bracket is connected to the pressing portion, The pulley bracket has a pulley shaft support portion meshed with the pulley shaft, the pulley shaft support portion and the stop portion are located at positions sandwiching the pulley in the vehicle width direction, and the pulley shaft presses the pulley shaft support portion against the pulley shaft. The other end side of the guide rail. The window regulator according to the first or second patent application, wherein the pressing portion has a protrusion that engages with the hole of the guide rail.

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