JP2003013663A - Window regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window regulator following the movement to the direction of the width of a vehicle when a windowpane is opened and shut and having a narrow inclination of the windowpane. SOLUTION: Torsional rigidity for the longitudinal axis of a first arm section 111 of an equalizer arm 110 and flexural rigidity in the direction of the width of the vehicle are set smaller than torsional rigidity for the longitudinal axis of a second arm section 121 and flexural rigidity in the direction of the width of the vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driven gear having a center of a tip circle as a center of rotation, a lift arm having a base end fixed to the driven gear and a through hole formed in an intermediate portion, and a window glass. And a first arm portion and a second arm portion, which form a guide extending in a direction intersecting with the opening / closing direction of the window glass, the guide being engaged with the distal end portion of the lift arm. By connecting the first arm portion and the second arm portion through the hole of the lift arm, the middle portion of the lift arm is rotatable and intersects with the lift arm in an X shape. An intermediate portion is pivotally attached, and the first arm portion engages with the lift arm.
A guide parallel to the guide of the lift arm bracket is formed, and an equalizer arm bracket for guiding the second arm portion of the equalizer arm with the guide is provided, and the lift arm is rotated by rotating the driven gear. And a window regulator for opening and closing the window glass.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram of a conventional window regulator. A drive motor 4 is attached to the base plate 1 together with a reduction gear box, and a rotary shaft 4a, which is the final output shaft thereof, is provided with a pinion (not shown), and the driven gear 3 is attached to the pinion. The tooth portions 3a of are meshed with each other. Therefore, if the rotation shaft 4a is driven clockwise by the motor 4 in the figure, the driven gear 3 rotates counterclockwise, and conversely, the rotation shaft 4a rotates.
If is driven counterclockwise, the driven gear 3 will rotate clockwise.

The lift arm 5 is, in the present embodiment,
It is fixed to the driven gear 3 in the radial direction of the addendum circle. The lift arm bracket 6 is attached to the lower portion of a window glass (not shown), has a substantially C-shaped cross section, and has a slit-shaped guide 6a extending in a direction intersecting the opening / closing direction M of the window glass. There is. A slider 7 movable along the guide 6a is fitted to the lift arm bracket 6. The slider 7 is rotatably locked to the tip portion 55 of the lift arm 5 by a pin 8.

The equalizer arm 10 is a lift arm 5
The intermediate portion is pivotally attached to the intermediate portion so as to be rotatable and intersect in an X shape. In this conventional example, the equalizer arm 10 is configured by integrally fixing separately molded first arm portions 11 and second arm portions 12 having substantially the same shape.

The equalizer arm bracket 13 is attached to a door panel (inner) not shown,
The cross section is substantially C-shaped, and a guide 13a parallel to the guide 6a of the lift arm bracket 6 is formed. The equalizer arm bracket 13 includes a guide 13a.
A slider 14 that is movable along is fitted. The slider 14 is rotatably locked to the base end portion (second arm portion 12) of the equalizer arm 10 with a pin 15.

On the other hand, a slider 16 is rotatably locked by a pin 17 at the tip end portion (first arm portion 11) of the equalizer arm 10, and the slider 16 extends along the guide 6a of the lift arm bracket 6. It is movably fitted.

Next, the operation of this embodiment will be described.
FIG. 5 shows a state in which the window glass is closed. For this reason,
The lift arm 5 rotates counterclockwise until the window glass comes into contact with the window frame. In order to lower the window glass from this state, the motor 4 drives the rotating shaft 4a in the counterclockwise direction to rotate the lift arm 5 in the clockwise direction. If driven in this way, the equalizer arm 10 rotates counterclockwise in conjunction with the rotation of the lift arm 5, and eventually the sliders 7 and 16 move to the guide 6
While descending while moving in the guide direction of a, the lift arm bracket 6 is descended in the M direction. Therefore, the window glass also descends. After that, in order to raise the window glass, the motor 4 may drive the rotary shaft 4a in the clockwise direction.

[0008]

In the window regulator of this type, since the window glass slightly moves in the vehicle width direction when opening and closing, the equalizer arm 10 flexes and follows the movement in the vehicle width direction, that is, the equalizer. Arm 1
The bending stiffness in the plate thickness direction of 0 needs to be an appropriate value.

The equalizer arm 10 also needs to have sufficient torsional rigidity about its longitudinal axis to prevent the window glass from tilting. However, the first arm portion 11 and the second arm portion 12 constituting the equalizer arm 10 having the above-mentioned configuration are made of the same material and have the same plate thickness, and have the same shape except for the shape of the connecting portion between them, and the plate thickness The directional bending stiffness and the torsional stiffness about the longitudinal axis are approximately the same.

Therefore, if the followability of the window glass in the vehicle width direction is improved, the torsional rigidity with respect to the longitudinal axis of the equalizer arm is insufficient and the window glass tilts. Conversely, if the window glass is not tilted. , The equalizer arm's bending thickness in the plate thickness direction is too large, and the followability of the window glass in the vehicle width direction deteriorates, and both (followability of the window glass in the vehicle width direction and tilt prevention of the window glass) are established. It is difficult.

The present invention has been made in view of the above problems, and a first object thereof is to provide a window regulator that follows movement in the vehicle width direction when opening and closing a window glass and has a small inclination of the window glass. Especially.

A second object of the present invention is to provide a window regulator which can be reduced in weight.

[0013]

According to a first aspect of the present invention for solving the above-mentioned problems, a driven gear having a center of a tip circle as a rotation center and a base end portion fixed to the driven gear and penetrating an intermediate portion. A lift arm having a hole formed therein, and a lift arm bracket attached to the window glass and having a guide extending in a direction intersecting with the opening / closing direction of the window glass, the guide being engaged with the distal end portion of the lift arm. A first arm part and a second arm part, and by connecting the first arm part and the second arm part through a hole of the lift arm, the first arm part and the second arm part are pivotable to an intermediate part of the lift arm, An equalizer arm having an intermediate portion pivotally attached so as to intersect the lift arm in an X shape, the first arm portion engaging with the lift arm bracket, and the lift arm bracket. A guide that is parallel to the guide of the gear and has an equalizer arm bracket that guides the second arm portion of the equalizer arm with the guide, and the lift arm is rotated by rotating the driven gear. In a window regulator for opening and closing a window glass, the equalizing arm has a torsional rigidity with respect to a longitudinal axis of a first arm portion and a bending rigidity with respect to a vehicle width direction as a torsional rigidity and a vehicle width direction with respect to a longitudinal axis of the second arm portion. It is a window regulator characterized by being set smaller than the bending rigidity of the.

By setting the bending rigidity of the first arm portion of the equalizer arm in the vehicle width direction to be smaller than the bending rigidity of the second arm portion in the vehicle width direction, that is, in the plate thickness direction on the tip side of the equalizer arm. By reducing the bending rigidity, the tip side is easily bent in the vehicle width direction, and the equalizer arm favorably follows the movement of the window glass in the vehicle width direction when opening and closing the window glass.

Further, since the equalizer arm properly follows the movement of the window glass in the vehicle width direction when opening and closing the window glass, the sliding resistance between the guide for guiding the window glass in the opening and closing direction and the window glass is reduced, You can get a smooth opening and closing of the window glass, and less wear of the guide.

Further, the torsional rigidity about the longitudinal axis of the first arm portion of the equalizer arm is set smaller than the torsional rigidity about the longitudinal axis of the second arm portion, that is, the base end side of the equalizer arm. The twist rigidity of the window glass is set to be larger than that of the tip side, so that the inclination of the window glass is reduced.

According to a second aspect of the present invention, the outer shapes of the first arm portion and the second arm portion are substantially the same, and the first arm portion and the second arm portion are at substantially the same position. ,
2. The wind regulator according to claim 1, wherein the beads having substantially the same plane shape are formed, and the height of the beads of the first arm portion is set lower than the height of the beads of the second arm portion.

The outer shapes of the first arm portion and the second arm portion are substantially the same, and beads having substantially the same plane shape are provided at substantially the same positions as the first arm portion and the second arm portion. The height of the bead of the first arm portion to the second
By setting it lower than the height of the bead of the arm part,
The torsional rigidity about the longitudinal axis and the bending rigidity in the vehicle width direction of the first arm portion of the equalizer arm are the second.
It is smaller than the torsional rigidity about the longitudinal axis of the arm portion and the bending rigidity in the vehicle width direction.

By forming the beads on the first arm portion and the second arm portion, the rigidity is improved, a thinner material than the conventional material is required, and the weight can be reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a window regulator according to an embodiment of the present invention.

Since the difference between the present embodiment and the conventional example is the equalizer arm and the other parts are the same, the same parts as those in FIG. The description will be omitted.

The equalizer arm 110, which is pivotally attached to the intermediate portion of the lift arm 5 so as to be rotatable and intersects in an X shape, has a first arm portion 111 and a first arm portion 111, which are molded separately and have substantially the same shape. It is configured by integrally fixing the two arm portions 121.

Next, the first arm portion 111 will be described with reference to FIG. The figure (a) is a plan view, the figure (b) is a sectional view taken along the section line AA of the figure (a), and the figure (c) is the section line B of the figure (a).
It is sectional drawing in -B.

One end portion of the first arm portion 111 forms an intermediate portion of the equalizer arm 110.
A cylindrical portion 114 (see FIG. 4) that is rotatably fitted in the hole 51c of the lift arm 5 is formed.

A projection 114a for projection welding is formed on the cylindrical portion 114. On the other hand, the first
A hole 113 for attaching the pin 17 is formed at the other end of the arm 111.

A bead (projection) 115 is formed in the middle portion of the first arm portion 111. Next, the second arm portion 121 will be described with reference to FIG. 7A is a plan view, FIG. 6B is a cross-sectional view taken along section line C-C in FIG. 7A, and FIG. 7C is a cross-sectional view taken along section line D-D in FIG.

One end of the second arm portion 121 forms an intermediate portion of the equalizer arm 110.
A cylindrical portion 124, which has a larger diameter than the cylindrical portion 114 of the first arm portion 111 and is projection welded to the cylindrical portion 114 of the first arm portion 111, is formed.

On the other hand, a hole 123 for mounting the pin 15 is formed at the other end of the second arm portion 121. The first arm is provided in the middle part of the second arm part 121.
A bead 125 having substantially the same plane shape is formed at substantially the same position as the bead 115 of the arm portion 111.

Next, referring to FIG. 4, the first arm portion and the second arm portion
A method of fixing the arm portion will be described. Cylindrical portion 114 of the first arm portion 111 fitted in the hole 51c of the lift arm 5
And the cylindrical portion 124 of the second arm portion 121, which is arranged to face the first arm portion 111 with the lift arm 5 interposed therebetween,
They are fixed to each other by projection welding with their bottoms abutted against each other.

Therefore, the first arm portion 111 and the second arm portion 121 rotate integrally on the front and back of the lift arm 5. An annular pressing portion 119 is formed on the outer side of the cylindrical portion 114 of the first arm portion 111, and the lift arm 5 is pressed by this portion so that there is no play between the lift arm and the lift arm 5. ing.

The bead 11 of the first arm portion 111
5 of the height (H1) bead 125 of the second arm portion 121
The height was set lower than the height (H2). Next, the operation of this embodiment will be described. FIG. 1 shows a state in which the window glass is closed. Therefore, until the window glass contacts the window frame,
The lift arm 5 rotates counterclockwise. In order to lower the window glass from this state, the motor 4 drives the rotary shaft 4a in the counterclockwise direction to rotate the lift arm 5 in the clockwise direction. If driven in this way, the equalizer arm 10 rotates counterclockwise in conjunction with the rotation of the lift arm 5, and eventually the slider 7
And 16 descend while moving in the guide direction of the guide 6a, and lower the lift arm bracket 6 in the M direction. Therefore, the window glass also descends. After that, in order to raise the window glass, the motor 4 may drive the rotary shaft 4a in the clockwise direction.

According to the above configuration, the first arm portion 111
And the second arm portion 121 has the same outer shape,
Forming beads 115 and 125 having substantially the same plane shape at substantially the same positions as the arm portion 111 and the second arm portion 121,
By setting the height (H1) of the bead 115 of the first arm portion 111 to be lower than the height (H2) of the bead 125 of the second arm portion 121, the first arm portion 110 of the equalizer arm 110 is
The bending rigidity of the arm portion 111 in the vehicle width direction is determined by the second arm portion 1.
21 is smaller than the flexural rigidity in the vehicle width direction, that is, the flexural rigidity in the plate thickness direction on the tip side of the equalizer arm 110 is decreased, so that the tip side is easily bent in the vehicle width direction, and the equalizer arm is opened and closed when the window glass is opened and closed. Favorably follows the movement of the window glass in the vehicle width direction.

Further, since the equalizer arm 110 favorably follows the movement of the window glass in the vehicle width direction when opening and closing the window glass, sliding resistance between the window glass and the guide for guiding the window glass in the opening and closing direction is reduced. , You can get a smooth opening and closing of the window glass, less wear of the guide.

The torsional rigidity of the first arm portion 111 of the equalizer arm 110 with respect to the longitudinal axis is smaller than the torsional rigidity of the second arm portion 121 with respect to the longitudinal axis, that is, the base end side of the equalizer arm 110. Since the torsional rigidity is higher than that at the tip side, the inclination of the window glass is reduced.

Further, by forming the beads 115 and 125 on the first arm portion 111 and the second arm portion 121, the rigidity of the first arm portion 111 and the second arm portion 121 is improved, and the material is thinner than before. The weight can be reduced.

The present invention is not limited to the above embodiment. In the above-described embodiment, a bead is formed on the first arm portion 111 and the second arm portion 121, and the rigidity of the first arm portion 111 and the second arm portion 121 is set by the height of the bead. Did, but in addition, the first
Bending flanges may be formed on the periphery of the arm portion 111 and the second arm portion 121, and the rigidity may be set depending on the width of the flange, or the first arm portion 111 and the second arm portion 121.
It is also possible to open a hole in and to set the magnitude of rigidity by the area and number of holes.

[0037]

As described above, according to the invention of claim 1, the bending rigidity of the first arm portion of the equalizer arm in the vehicle width direction is smaller than the bending rigidity of the second arm portion in the vehicle width direction. By setting it, that is, by reducing the bending rigidity in the plate thickness direction on the tip side of the equalizer arm, the tip side becomes easier to bend in the vehicle width direction, and the equalizer arm is set in the vehicle width direction of the window glass when opening and closing the window glass. Follows movement well.

Further, since the equalizer arm properly follows the movement of the window glass in the vehicle width direction when opening and closing the window glass, the sliding resistance between the guide for guiding the window glass in the opening and closing direction and the window glass is reduced, You can get a smooth opening and closing of the window glass, and less wear of the guide.

The torsional rigidity of the first arm portion of the equalizer arm with respect to the longitudinal axis is set to be smaller than the torsional rigidity of the second arm portion with respect to the longitudinal axis, that is, the base end side of the equalizer arm. The twist rigidity of the window glass is set to be larger than that of the tip side, so that the inclination of the window glass is reduced.

According to the second aspect of the present invention, the outer shapes of the first arm portion and the second arm portion are substantially the same, and the first arm portion and the second arm portion are substantially the same. By forming a bead having substantially the same plane shape at the position and setting the bead height of the first arm portion lower than the bead height of the second arm portion, the length of the first arm portion of the equalizer arm is increased. The torsional rigidity with respect to the axial direction and the bending rigidity in the vehicle width direction are smaller than the torsional rigidity with respect to the longitudinal axis of the second arm portion and the bending rigidity in the vehicle width direction.

By forming the beads on the first arm portion and the second arm portion, the rigidity is improved, a thinner material than the conventional material is required, and the weight can be reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a window regulator according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a first arm portion of the equalizer arm of FIG.

FIG. 3 is a diagram illustrating a second arm portion of the equalizer arm of FIG.

4 is a first arm portion and a second portion of the equalizer arm of FIG.
It is a figure explaining the fixing method with an arm part.

FIG. 5 is a configuration diagram of a conventional window regulator.

[Explanation of symbols]

5 lift arms 6 Lift arm bracket 13 Equalizer arm bracket 110 equalizer arm 111 First arm part 115,125 beads 121 Second arm part

Claims (2)

[Claims] 1. A driven gear having a center of a tooth tip circle as a rotation center, a lift arm having a base end fixed to the driven gear and a hole penetrating in an intermediate portion thereof, and attached to a window glass and a window glass. A guide extending in a direction intersecting with the opening / closing direction of the lift arm, the lift arm bracket engaging with the tip of the lift arm by the guide, and a first arm portion and a second arm portion. By connecting the first arm portion and the second arm portion through a hole, the middle portion of the lift arm is pivotable so that the middle portion of the lift arm is pivotable and intersects the lift arm in an X shape. An equalizer arm that is attached to the lift arm bracket and has a guide parallel to the guide of the lift arm bracket. A equalizer arm bracket that guides a second arm portion of the equalizer arm, and a wind regulator that rotates the lift arm and opens and closes the window glass by rotating the driven gear. The torsional rigidity with respect to the longitudinal axis of the arm portion and the bending rigidity in the vehicle width direction are set to the second value.
A wind regulator characterized by being set to be smaller than the torsional rigidity about the longitudinal axis of the arm portion and the bending rigidity in the vehicle width direction. 2. The first arm part and the second arm part have substantially the same outer shape, and the first arm part and the second arm part have substantially the same planar shape at substantially the same position. The wind regulator according to claim 1, wherein a bead is formed, and a height of a bead of the first arm portion is set lower than a height of a bead of the second arm portion.