JP4223994B2 - Window regulator - Google Patents

Description

  The present invention includes a lift arm that is rotatably provided on a base end side with respect to a door panel, a lift arm bracket that is attached to a window glass and formed with a guide that extends in a direction crossing the opening / closing direction of the window glass, A first shoe provided at the tip of the lift arm and movably engaged with the guide of the lift arm bracket, pivotable to an intermediate portion of the lift arm, and intersects the lift arm in an X shape An equalizer arm pivotally attached to the intermediate portion, a second shoe provided at one end of the equalizer arm and movably engaged with a guide of the lift arm bracket, and provided on the door panel , An equalizer arm bracket in which a guide is formed in parallel with the guide of the lift arm bracket, and the equalizer arm Provided at the end of the square, to a window regulator having a third shoe movably engaged with the guide of the equalizer arm bracket.

  As a window regulator for opening and closing a window glass W of a vehicle, there is a so-called X-arm type using two arms that intersect as shown in FIG. In the figure, reference numeral 101 denotes a lift arm provided so that the base end side is rotatable with respect to the door panel 103. The window glass 105 is provided with a lift arm bracket 107 formed with a guide extending in a direction intersecting with the opening / closing direction (arrow direction in the drawing) of the window glass 105. A first shoe 109 movably engaged with the lift arm bracket 107 is provided at the tip of the lift arm 101.

  An intermediate portion of the lift arm 101 is provided with an equalizer arm 111 pivotally attached to the intermediate portion so as to intersect the lift arm 101 in an X shape. At one end of the equalizer arm 111, a second shoe 113 is provided that is movably engaged with the guide of the lift arm bracket 107.

  On the other hand, the door panel 103 is provided with an equalizer arm bracket 115 having a guide parallel to the guide of the lift arm bracket 107. A third shoe 117 that is movably engaged with the equalizer arm bracket 115 is provided at the other end of the equalizer arm 111.

  The lift arm 101 is rotationally driven by a motor 121. When the motor 121 is driven to rotate the lift arm 101 upward or downward, the lift arm bracket 107 is raised and lowered, and the window glass 105 is also raised and lowered. At this time, the equalizer arm 111 rotates so that the window glass 105 moves up and down while keeping the level.

  In such a window regulator, the equalizer arm bracket 115 has a shape as shown in FIG. In the drawing, the cross-sectional shape of the equalizer arm bracket 115 in the direction orthogonal to the longitudinal direction of the arm includes a bottom portion 201, first and second side wall portions 203 and 205 bent in the same direction from both ends of the bottom portion 201, It consists of first and second bent portions 207 and 209 that bend in a direction approaching each other from the tips of the second side wall portions 203 and 205 and form a slit S along the longitudinal direction of the arm between the tips. A guide for movably engaging the third shoe 117 is formed in a space surrounded by the bottom portion 201, the first and second side wall portions 203 and 205, and the first and second bent portions 207 and 209. . Further, a pin 117 a for attaching the third shoe 117 to the equalizer arm 111 protrudes outside the equalizer arm bracket 115 through the slit S.

  Pierce nuts 221 and 221 ′ for attaching the equalizer arm bracket 115 to the door panel 103 are provided by caulking at the bottoms of both ends of the equalizer arm bracket 115.

  In order to reduce the manufacturing process of such an equalizer arm bracket 115, the pressing process of the equalizer arm bracket 115 and the caulking process of the pierce nuts 221 and 221 ′ are performed in one process, and then the third shoe 117 is assembled. Can be found.

Therefore, in order to assemble the third shoe 117 to the guide of the equalizer arm bracket 115, the first and second bent portions 207 and 209 on one end side of the equalizer arm bracket 115, and the first and second side wall portions. A part of 203 and 205 is cut away to form an insertion portion A in which the third shoe 117 can be inserted into the guide. Further, claw portions 213 and 215 are formed at the tips of the first and second side wall portions 203 and 205 of the insertion portion A. Then, after the third shoe 117 is inserted from the insertion portion A, the claw portions 213 and 215 are bent as shown in the drawing to form a stopper on one side of the moving range of the third shoe 117. The stopper on the other side of the movement range of the third shoe 117 is a pierce nut 221 ′ (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2003-253958 (FIG. 5)

However, the equalizer arm bracket 115 configured as shown in FIG. 4 has the following problems.
(1) The range B from the claw parts 213 and 215 to the pierce nut 221 is a useless part, which increases the cost.
(2) Since the equalizer arm bracket 115 has different shapes on the left and right, there is a problem that if the wrong assembly is made, the movement range of the third shoe 117 is shifted, and the window regulator device cannot be moved.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a window regulator that can be reduced in cost and can be easily assembled.

According to the first aspect of the present invention, there is provided a lift arm having a base end portion that is rotatable with respect to the door panel, and a lift arm that is attached to the window glass and that extends in a direction crossing the opening / closing direction of the window glass. A bracket, a first shoe provided at a tip of the lift arm and movably engaged with a guide of the lift arm bracket; and a pivot between the lift arm and an intermediate portion of the lift arm; An equalizer arm pivotally attached so as to intersect in a letter shape; a second shoe provided at one end of the equalizer arm and movably engaged with a guide of the lift arm bracket; An equalizer arm bracket provided on a door panel, parallel to the guide of the lift arm bracket and formed with a guide; and the equalizer And a third shoe provided at the other end of the arm and movably engaged with a guide of the equalizer arm bracket, wherein the equalizer arm bracket includes a bottom surface of the third shoe, The facing bottom, the first and second side walls facing the side surfaces of the third shoe, and the directions approaching each other from the tips of the first and second side walls, bent in the same direction from both ends of the bottom A first bent portion and a second bent portion facing the top surface of the third shoe, the bottom portion, the first and second side wall portions, and the first and second bent portions. A space surrounded by a square serves as a guide for the third shoe, and the third shoe can be brought into contact with the bottoms of both ends of the equalizer arm bracket to fix the equalizer arm bracket to the door panel. The binding member is provided, the guide, at least the first and second bent part no, the third shoe forms an insertion portion insertable into the guide, further to the insertion portion, the first Provided with a retaining means for preventing the third shoe from coming off in the direction of the first and second bent portions without interfering with the movement of the third shoe along the guide after insertion of the third shoe . It is a window regulator characterized by this.

The third shoe moves while being guided by a guide surrounded by the bottom portion of the equalizer arm bracket, the first and second side wall portions, and the first and second bent portions.
When the lift arm is rotated upward or downward, the lift arm bracket is raised and lowered, and the window glass is also raised and lowered. At this time, the equalizer arm rotates so that the window glass moves up and down while keeping the level.

  The invention according to claim 2 is characterized in that the retaining means is a claw portion formed integrally with at least one of the first side wall portion and the second side wall portion. The window regulator according to claim 1.

  The invention according to claim 3 is the window regulator according to claim 1 or 2, wherein the insertion portion is formed adjacent to a fastening member at one end of the equalizer arm bracket.

  According to the first to third aspects of the present invention, the bottom of each end portion of the equalizer arm bracket is provided with a fastening member that can contact the third shoe and that fixes the equalizer arm bracket to the door panel. As a result, the equalizer arm bracket can be formed symmetrically and easy to assemble.

Further, after the third shoe is inserted into the guide from the insertion portion, the fastening member is prevented from coming off in the direction of the first and second bent portions using the retaining means, so that the fastening member becomes the third shoe. The stopper moves in the guide moving direction, and there is no useless part, so that the cost can be reduced.

  According to the second aspect of the present invention, the retaining means is a claw portion integrally formed on at least one of the first sidewall portion and the second sidewall portion. Therefore, when manufacturing the equalizer arm bracket, the claw portion can be formed together with the bottom portion, the first and second side wall portions, the first and second bent portions, and the manufacturing cost is reduced.

  According to the invention of claim 3, the insertion portion is formed adjacent to the fastening member at one end of the equalizer arm bracket, so that the first and second folds are formed on the fastening member side of the retaining means. The music part can be eliminated. Therefore, after the third shoe is inserted from the insertion portion, a tool for functioning the retaining means is easily inserted from the fastening member side, and assembly is facilitated.

  Embodiments of the present invention will be described with reference to the drawings. 3 and 4 showing the present embodiment and the conventional example are the equalizer arm brackets, and the other parts are the same, so only the equalizer arm bracket will be described.

  In FIG. 1, which is a perspective view of an equalizer arm showing the invention part of the embodiment, the cross-sectional shape of the equalizer arm bracket 5 in the direction orthogonal to the longitudinal direction of the arm is bent in the same direction from the bottom 11 and both ends of the bottom 11 The first and second side wall portions 13 and 15 and the first and second side wall portions 13 and 15 are bent in a direction approaching each other from the tips thereof, and a slit S is formed between the tips along the longitudinal direction of the arm. 1 and second bent portions 17 and 19. And the space enclosed by the bottom part 11, the 1st and 2nd side wall parts 13 and 15, the 1st and 2nd bending parts 17 and 19 becomes a guide with which the 3rd shoe 117 engages movably.

  Pierce nuts 21 and 21 ′ for attaching the equalizer arm bracket 5 to the door panel 103 are provided by caulking at the bottoms of both ends of the equalizer arm bracket 5. In this embodiment, these pierce nuts 21 and 21 ′ also function as a stopper that restricts the movement range of the third shoe 117.

  In order to reduce the manufacturing process of the equalizer arm bracket 5 like this, the pressing process of the equalizer arm bracket 5 and the caulking process of the pierce nuts 21 and 21 ′ are performed in one process, and then the third process. The shoe 117 is inserted.

  In this embodiment, in order to insert the third shoe 117 into the guide of the equalizer arm bracket 5, as shown in FIG. 2, in a portion adjacent to the pierce nut 21 on one end side of the equalizer arm bracket 5, A portion where the first and second bent portions 17 and 19 and a part of the first and second side wall portions 13 and 15 are not present in a range longer than the length (C) of the third shoe 117 in the guide moving direction, that is, The insertion part A to the guide of the equalizer arm bracket 5 of the third shoe 117 is formed.

  Further, first and second claw portions 33 and 35 as a retaining means are integrally formed at the tips of the first and second side wall portions 13 and 15 of the insertion portion A. Then, after the third shoe 117 is inserted from the insertion portion A, the third shoe 117 is prevented from coming off from the insertion portion A in the direction of the first bent portion 17 and the second bent portion 19. Further, the first claw portion 23 and the second claw portion 25 are bent in a direction approaching each other as shown in FIG.

According to such a configuration, the following effects can be obtained.
(1) The equalizer arm bracket 5 is provided with pierce nuts 21 and 21 ′ that can fix the equalizer arm bracket 5 to the door panel at the bottom portions 11 at both ends of the equalizer arm bracket 5. The bracket 5 can be formed symmetrically, and the movement range of the third shoe 117 when the left and right are attached reversely as in the prior art is not shifted, so that assembly is facilitated.
(2) The first and second bent portions within a range longer than the length (C) of the third shoe 117 in the guide moving direction at a portion adjacent to the pierce nut 21 on one end side of the equalizer arm bracket 5 17 and 19 and the insertion part A to the guide of the equalizer arm bracket 5 of the third shoe 117 having no part of the first and second side wall parts 13 and 15 is formed.

Furthermore, first and second claw portions 33 and 35 are formed at the tips of the first and second side wall portions 13 and 15 of the insertion portion A. Then, after the third shoe 117 is inserted from the insertion portion A, the third shoe 117 is prevented from coming off from the insertion portion A in the direction of the first bent portion 17 and the second bent portion 19. Further, the first claw portion 23 and the second claw portion 25 are bent in a direction approaching each other as shown in FIG. That is, since the pierce nuts 21 and 21 'serve as stoppers in the guide movement direction of the third shoe 117, there is no useless part as in the prior art, and the cost can be reduced.
(3) The insertion portion A is formed adjacent to the pierce nut 21 at one end of the equalizer arm bracket 5 so that one side of the first and second claw portions 33 and 35 (the pierce nut 21 side). The first and second bent portions 17 and 19 can be eliminated, and the tool can easily enter from one side of the first and second claw portions 33 and 35. In addition, the process which bends becomes easy In addition, this invention is not limited to the said example of a form. In the above embodiment, the insertion portion A is formed adjacent to the pierce nut 21, but at the bottom portion 11 of the equalizer arm bracket 5, the first and second side wall portions 13 and 15, and the first and second bent portions 17 and 19. The insertion portion A may be formed anywhere in the formed guide.

  Further, in the above-described embodiment, the insertion portion A is not formed until a part of the first and second side wall portions 13 and 15 is formed, but only the first and second bent portions 17 and 19 are eliminated. The third shoe 117 can be inserted.

  Further, if the equalizer arm bracket 5 has a symmetrical shape and further eliminates a useless portion, the insertion portion A is not adjacent to the pierce nut 21 on one end side of the equalizer arm bracket 5, for example, Even if it is formed at the middle part of the collizer arm bracket 5, the object can be achieved.

Further, the first claw portion 33 and the second claw portion 35 are provided on the first side wall portion 13 and the second side wall portion 15, but the claw portion is formed only on the first side wall portion 13 and only on the second side wall portion 15. Also good.
Moreover, although the 1st nail | claw part 33 and the 2nd nail | claw part 35 were integrally formed with the 1st side wall part 13 and the 2nd side wall part 15, another member may be sufficient.

It is a perspective view of the equalizer arm which shows the invention part of a form example. FIG. 1 is a perspective view before the third shoe 117 is assembled in FIG. It is a block diagram of a window regulator. It is a perspective view of the conventional equalizer arm bracket.

Explanation of symbols

5 Equalizer arm bracket 13 1st side wall part 15 2nd side wall part 17 1st bending part 19 2nd bending part 21,21 'Pierce nut (fastening member)
33 First claw part 35 Second claw part 117 Third shoe

Claims (3)

A lift arm that is rotatably provided on the base end side with respect to the door panel;
A lift arm bracket formed with a guide attached to the window glass and extending in a direction crossing the opening / closing direction of the window glass;
A first shoe provided at a tip of the lift arm and movably engaged with a guide of the lift arm bracket;
An equalizer arm pivotably attached to an intermediate portion of the lift arm and pivotally attached to the lift arm so as to intersect the lift arm in an X-shape;
A second shoe provided at one end of the equalizer arm and movably engaged with a guide of the lift arm bracket;
An equalizer arm bracket provided on the door panel, parallel to the guide of the lift arm bracket and formed with a guide;
A third shoe provided at the other end of the equalizer arm and movably engaged with a guide of the equalizer arm bracket;
In the window regulator with
The equalizer arm bracket is
A bottom portion facing the bottom surface of the third shoe, first and second side wall portions bent in the same direction from both ends of the bottom portion, and facing the side surface of the third shoe, and the first and second Bending in a direction approaching each other from the front end of the side wall portion, and having first and second bent portions facing the top surface of the third shoe,
A space surrounded by the bottom, the first and second side walls, and the first and second bent portions serves as a guide for the third shoe,
The bottom of the both ends of the equalizer arm bracket is provided with a fastening member that can contact the third shoe and that fixes the equalizer arm bracket to the door panel;
The guide has at least the first and second bent portions, and the third shoe forms an insertion portion that can be inserted into the guide,
Further, after the third shoe is inserted into the insertion portion, the third shoe does not interfere with the movement of the third shoe along the guide, and the third shoe is detached in the first and second bent portions. A window regulator characterized in that it is provided with retaining means for stopping.   2. The window regulator according to claim 1, wherein the retaining means is a claw portion formed integrally with at least one of the first side wall portion and the second side wall portion.   The window regulator according to claim 1 or 2, wherein the insertion portion is formed adjacent to a fastening member at one end of the equalizer arm bracket.

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