JP2009263998A - Window regulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a window regulator by which quality of mounting of a first arm part and a second arm part can be visually inspected. <P>SOLUTION: The window regulator includes a non-circular hole 1012a formed in the second arm part 1012, and a non-circular projection which is formed in the first arm part 1011 in a manner that it penetrates a hole 1005a of a lift arm 1005 and the hole 1012a formed in the second arm part 1012 and that the part projecting outside from the hole 1012a of the second arm part 1012 is swaged to abut on a peripheral edge of the hole 1012a of the second arm part 1012 so that the first arm part 1011 and the second arm part 1012 may be rotated together. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is provided with a lift arm that is rotatably provided and formed with a circular hole penetrating in the middle portion, and a guide that is attached to the window glass and extends in a direction crossing the opening / closing direction of the window glass, A lift arm bracket that engages with a tip of the lift arm by a guide, a first arm portion, and a second arm portion, and the first arm portion and the second arm portion are connected through a hole of the lift arm. When attached, but attached, the middle part of the lift arm is pivotably attached to the middle part of the lift arm so as to intersect the lift arm in an X shape, and the tip part engages with the lift arm bracket. And an equalizer arm bracket that guides a base end portion of the equalizer arm with the guide, the lift arm being To the rolling, about the window regulator for raising and lowering the window glass.

First, an X arm type window regulator will be described with reference to FIG.
In the figure, a base plate 1 is attached to a door panel (inner) (not shown), and a driven gear 3 is rotatably attached to the base plate 1 with pins 2. The pin 2 is located at the center of the addendum circle of the driven gear 3.

  Since the window regulator shown in FIG. 7 is a power-type window regulator, a drive motor 4 is attached to the base plate 1 together with a reduction gear box, and the final output shaft, the rotary shaft 4a, Although not shown in FIG. 2, a pinion is provided, and the tooth portion 3a of the driven gear 3 is meshed with the pinion. Therefore, if the rotating shaft 4a is driven clockwise in the figure by the motor 4, the driven gear 3 rotates counterclockwise. Conversely, if the rotating shaft 4a is driven counterclockwise, the driven gear 3 rotates clockwise. Will rotate.

The lift arm 5 is attached to the driven gear 3 in the radial direction of the tip circle.
The lift arm bracket 6 is attached to a lower portion of a window glass (not shown), has a substantially C-shaped cross section, and is formed with a slit-shaped guide 6a extending in a direction crossing the opening / closing direction M of the window glass. Yes. The lift arm bracket 6 is fitted with a slider 7 which can move in the guide direction of the guide 6a. The slider 7 is pivotally locked to the lift arm 5 with a pin 8.

  The equalizer arm 10 is pivotally attached to the intermediate portion of the lift arm 5 so as to be pivotable and intersect the X shape. If it demonstrates in detail, the equalizer arm 10 will be comprised by attaching the 1st arm part 11 and the 2nd arm part 12 which were shape | molded separately. That is, as shown in FIG. 8 which is a sectional view taken along the line AA in FIG. 7, the cylindrical portion 114 of the first arm portion 11 rotatably fitted in the hole 51 c of the lift arm 5, and the lift arm 5. The cylindrical part 124 of the second arm part 12 disposed opposite to the first arm part 11 is attached by the projection welding method with the end surfaces (bottom parts) being abutted against each other. For this reason, the 1st arm part 11 and the 2nd arm part 12 rotate integrally in the front and back of the lift arm 5. FIG.

  Returning to FIG. 7 again, the equalizer arm bracket 13 is attached to a door panel (inner) (not shown), has a substantially C-shaped cross section, and a guide 13a parallel to the guide 6a of the lift arm bracket 6 is formed. Has been. The equalizer arm bracket 13 is fitted with a slider 14 that can move in the guide direction of the guide 13a. The slider 14 is pivotally locked to the base end portion (first arm portion 11) of the equalizer arm 10 with a pin 15.

  On the other hand, a slider 16 is pivotally locked by a pin 17 to the tip end portion (second arm portion 12) of the equalizer arm 10, and the slider 16 is movable in the guide direction of the guide 6a of the lift arm bracket 6. Is fitted.

Next, the operation of the X arm type window regulator configured as described above will be described.
FIG. 7 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 rotary shaft 4a may be driven counterclockwise in FIG. 7 by the motor 4 to rotate the lift arm 5 clockwise. 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 down in the guide direction of the guide 6a, and the lift arm The bracket 6 is lowered in the M direction. Therefore, the window glass is also lowered. Thereafter, in order to raise the window glass, the rotation shaft 4 a may be driven clockwise by the motor 4.
JP 2001-219278 A (FIGS. 4 to 5)

  However, the first arm portion 11 and the second arm portion 12 of the equalizer arm 10 are attached by a projection welding method. Therefore, the management of the welding state is complicated due to variations in projection shape, electrode wear, contamination of foreign matter into the nugget (melted and solidified portion generated in the welded portion), and the like. On the other hand, the welded portion is formed at a location where the end surface (bottom surface) of the cylindrical portion 114 of the first arm portion 11 and the end surface (bottom surface) of the cylindrical portion 124 of the second arm portion 12 are abutted.

Therefore, the quality of the welded portion cannot be visually confirmed, and the quality of the attachment between the first arm portion and the second arm portion due to destruction is checked, which increases costs.
This invention is made | formed in view of the said problem, The subject is providing the window regulator which can confirm the quality of attachment of a 1st arm part and a 2nd arm part visually.

  The invention according to claim 1 is provided with a lift arm which is rotatably provided and formed with a circular hole penetrating in an intermediate portion, and a guide which is attached to the window glass and extends in a direction intersecting with the opening / closing direction of the window glass. A lift arm bracket that engages with the tip of the lift arm by the guide, a first arm portion, and a second arm portion, and the first arm portion and the second arm through holes of the lift arm. The intermediate portion is pivotally attached to the lift arm so as to be pivotable and intersect the lift arm in an X-shape, and one end is engaged with the lift arm bracket. And an equalizer arm bracket that guides the other end of the equalizer arm with the guide and rotates the lift arm. In the window regulator for raising and lowering the window glass, the non-circular hole formed in the second arm part, the hole formed in the first arm part, and the hole formed in the second arm part are inserted, and the first A non-circular shape in which a portion protruding outward from the hole of the two arm portions is caulked so as to contact a peripheral edge of the hole of the second arm portion, and the first arm portion and the second arm portion rotate integrally. And a convex portion of the window regulator.

  A non-circular hole formed in the second arm portion and a portion formed in the first arm portion, passing through the hole formed in the second arm portion, and protruding outside from the hole of the second arm portion Is provided with a convex portion that is caulked so as to hit the periphery of the hole of the second arm portion, so that peeling between the first arm portion and the second arm portion is prohibited.

  The shape of the hole of the second arm portion and the cross-sectional shape of the convex portion of the first arm portion are non-circular so that the first arm portion and the second arm portion rotate together. As a result, relative rotation between the first arm portion and the second arm portion is prohibited.

The invention according to claim 2 is the window regulator according to claim 1, wherein the convex portion is polygonal.
The invention according to claim 3 is the window regulator according to claim 1 or 2, wherein the convex portion has a bottomed cylindrical shape.

  According to the first to third aspects of the invention, the crimped portion, that is, the convex portion of the first arm portion is exposed to the outside. Therefore, it is possible to visually check the attachment quality of the first arm portion and the second arm portion.

  Also, a through hole formed in the second arm portion and a hole formed in the first arm portion, passing through the hole of the second arm portion, and a portion protruding outward from the hole are the holes of the second arm portion. With a simple configuration of a convex portion crimped so as to hit the periphery of the hole, it is possible to prohibit separation of the first arm portion and the second arm portion and prohibit relative rotation between the first arm portion and the second arm portion. Therefore, the manufacturing cost can be reduced.

  According to the invention which concerns on Claim 3, since a convex part is a bottomed cylinder shape, the intensity | strength of a convex part is high.

  The difference between the configuration of the window regulator of this embodiment and the configuration of the window regulator described in the background section is the attachment of the lift arm and the equalizer arm, and the other parts are the same, so the same parts Are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 4, the equalizer arm 1010 of the present embodiment includes a first arm portion 1011 and a second arm portion 1012 in the same manner as the window regulator described in the background art section. By attaching the first arm portion 1011 and the second arm portion 1012 through the hole 1005, the first arm portion 1011 and the second arm portion 1012 can be pivoted to the middle portion of the lift arm 1005, and the middle so as to intersect the lift arm 1005 in an X shape. The department is pivotally attached.

  Next, attachment of the lift arm 1005 and the equalizer arm 1010 will be described with reference to FIGS. 1 is a cross-sectional view taken along the line BB in FIG. 4, FIG. 2 is a view showing an assembled state before caulking in FIG. 1, and FIG. 3 is a perspective view of a punch and die used for caulking.

  As shown in FIG. 1 to FIG. 2, a circular hole 1005a that penetrates is formed in the intermediate portion of the lift arm 1005 by a burring method or the like, and the second of the equalizer arm 1010 is formed along the peripheral surface of the circular hole 1005a. A cylindrical standing wall portion 1005b extending in the direction of the arm portion 1012 is formed.

  In FIG. 1 to FIG. 2, the second arm portion 1012 of the equalizer arm 1010 disposed on the upper side of the lift arm 1005 is formed with a cylindrical recess 1012 b that fits into the standing wall portion 1005 b of the lift arm 1005. . The outer peripheral portion of the recess 1012b is a cylindrical portion 1012c that rotatably supports the circular hole 1005a of the lift arm 1005. A through hole 1012a is formed in the bottom surface of the recess 1012b.

  The first arm portion 1011 of the equalizer arm 1010 disposed on the lower side of the lift arm 1005 has a through hole 1011a formed by a burring method or the like, and a cylindrical standing wall portion (convex) along the hole 1011a. Part) 1011b is formed. The standing wall portion 1011b is inserted through the hole 1012a of the second arm portion 1012 and protrudes from the hole 1012a of the second arm portion 1012 to the outside.

  The shape of the hole 1012a of the second arm portion 1012 and the sectional shape of the first arm portion 1011 of the cylindrical upright wall portion 1011b of the first arm portion 1011 in the rotation plane direction are the same as the first arm portion 1011 and the second arm portion 1011. The arm portion 1012 has a quadrangular shape (non-circular shape) that rotates integrally.

Next, a method for attaching the lift arm 1005 and the equalizer arm 1010 will be described.
(1) As shown in FIG. 2, the second arm portion 1012 of the equalizer arm 1010 is disposed above the lift arm 1005, and the cylindrical portion 1012c of the second arm portion 1012 is fitted in the standing wall portion 1005b of the lift arm 1005. Combine.

  Also, the first arm portion 1011 of the equalizer arm 1010 is disposed below the lift arm 1005, and the upright wall portion 1011b of the first arm portion 1011 is assembled so as to protrude outside from the hole 1012a of the second arm portion 1012.

Then, caulking is performed by using an upper punch 1500 and a die 1600 as shown in FIGS.
At the center of the surface of the upper punch 1500 facing the die 1600, a prismatic vertical wall caulking portion 1501 having a truncated pyramid tip is provided. The upright wall caulking portion 1501 performs caulking processing such that when the quadrangular frustum-like portion is inserted into the hole 1011 a of the first arm portion 1011, the tip end portion of the upright wall portion 1011 b is expanded. On the surface facing the upper punch 1500 of the die 1600, a hole 1601 having a square cross-sectional shape into which the standing wall caulking portion 1501 can be inserted is formed.

  When such an upper punch 1500 and the die 1600 are used, the second arm portion 1012 of the standing wall portion 1011b of the first arm portion 1011 is caused by the standing wall portion caulking portion 1501 of the punch 1500 as shown in FIG. The portion protruding outside from the hole 1012a is caulked so as to contact the periphery of the hole 1012a of the second arm portion 1012, and the first arm portion 1011 and the second arm portion 1012 are prevented from being peeled off.

  The shape of the hole 1012a of the second arm portion 1012 and the sectional shape of the first arm portion 1011 of the standing wall portion (convex portion) 1011b of the first arm portion 1011 in the rotation plane direction are the same as the first arm portion 1011 and the first arm portion 1011. Since the two arm portions 1012 are non-circular so as to rotate together, relative rotation between the first arm portion 1011 and the second arm portion 1012 is prohibited.

According to such a window regulator, the following effects can be obtained.
(1) The crimped portion, that is, the tip of the standing wall portion 1011b of the first arm portion 1011 is exposed to the outside. Therefore, it is possible to visually check the attachment quality of the first arm portion 1011 and the second arm portion 1012.
(2) A through-hole 1012a formed in the second arm portion 1012 and a portion formed in the first arm portion 1011 through the hole 1012a of the second arm portion 1012 and projecting outside from the hole 1012a are second The simple structure of the standing wall portion (convex portion) 1011b that is caulked so as to hit the periphery of the hole 1012a of the arm portion 1012, prohibition of the separation between the first arm portion 1011 and the second arm portion 1012, and the first arm portion 1011 And the relative rotation between the second arm portion 1012 and the second arm portion 1012 can be prohibited.

  The present invention is not limited to the above embodiment. The first arm portion 1011 is on the equalizer arm bracket side, and the second arm portion 1012 is on the lift arm bracket side. Conversely, the first arm portion 1011 is on the lift arm bracket side and the second arm portion 1012 is on the equalizer arm bracket side. Also good.

  Moreover, as a shape of a convex part, as shown in FIG. 6, the bottomed cylinder part 1011c formed by extruding the 1st arm part 1011 may be sufficient. Then, as shown in FIG. 5, the portion protruding from the hole 1012 a of the second arm portion 1012 of the bottomed cylinder portion 1011 c may be caulked so as to hit the periphery of the hole 1012 a of the second arm portion 1012.

By using the bottomed cylindrical portion 1011c as the convex portion, the strength can be made higher than that of the standing wall portion 1011b.
In addition, the shape of the hole of the second arm portion 1012 and the cross-sectional shape of the convex portion of the first arm portion 1011 are quadrangular, but may be a triangle or a non-circular shape such as a pentagon or more polygon or an ellipse. Good.

FIG. 5 is a cross-sectional view taken along a cutting line BB in FIG. 4. It is a figure which shows the assembly | attachment state before crimping in FIG. It is a perspective view of the punch and die used for caulking. It is a figure which shows the location where the lift arm and equalizer arm of the example were attached. It is a figure explaining the other example of a form. It is a figure which shows the assembly | attachment state before crimping in FIG. It is a figure explaining an X arm type window regulator. It is sectional drawing of the cutting line AA of FIG.

Explanation of symbols

1005 Lift arm 1005a Hole 1010 Equalizer arm 1011 First arm portion 1011a Hole 1011b Standing wall portion (convex portion)
1012 Second arm portion 1012a Hole

Claims (3)

A lift arm provided rotatably and having a circular hole penetrating in the middle part;
A lift arm bracket that is attached to the window glass and that extends in a direction that intersects with the opening and closing direction of the window glass, and that engages the tip of the lift arm with the guide;
It consists of a first arm part and a second arm part, and can be rotated to the intermediate part of the lift arm by joining the first arm part and the second arm part through the hole of the lift arm, and An intermediate part pivotally attached so as to intersect the lift arm in an X shape, and one end part is an equalizer arm that engages with the lift arm bracket;
A guide is formed, and an equalizer arm bracket that guides the other end of the equalizer arm with the guide;
In the window regulator that rotates the lift arm and raises and lowers the window glass,
A non-circular hole formed in the second arm portion;
It is formed in the first arm part, inserted through the hole formed in the second arm part, and caulked so that the part protruding outside from the hole of the second arm part is in contact with the peripheral edge of the hole of the second arm part. A non-circular convex portion in which the first arm portion and the second arm portion rotate together.
A window regulator comprising: The convex portion is
The window regulator according to claim 1, wherein the window regulator is a polygon. The convex portion is
The window regulator according to claim 1 or 2, wherein the window regulator has a bottomed cylindrical shape.

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