JP4060262B2 - Wind regulator device - Google Patents

Description

  The present invention relates to a window regulator device for raising and lowering a window glass of an automobile.

  As shown in FIG. 15, a wire type window regulator device is known in which a window glass 13 supported by the slider 12 is moved up and down by moving the slider 12 up and down along a guide rail 11 provided in the door panel 10. . 15, the upper wire 16 and the lower wire 17 are wound around pulleys 14 and 15 provided at the upper and lower ends of the guide rail 11, and one end and the other end of each wire are wound around the slider 12 respectively. It is connected to the rotating drum 18. The winding drum 18 is rotated in the forward and reverse directions by the actuator 19, and the upper wire 16 and the lower wire 17 are relatively pulled and fed by the rotation. As a result, the slider 12 moves along the guide rail 11 and the window glass is moved. 13 is raised and lowered. Of course, a type in which the winding drum 18 is manually operated without using a power source such as the actuator 19 is also known.

FIG. 17 shows an example of a conventional slider 12. A pair of guide shoes 21 made of synthetic resin is provided on a metal base plate 20 that supports the window glass 13 so as to be spaced apart in the advancing and retreating direction of the slider 12, and the pair of guide shoes 21 is connected to the guide rail 11. The slider 12 is guided by the guide rail 11 by being slidably engaged with the guide rail 11. A slight clearance is secured at the engagement portion between the guide shoe 21 and the guide rail 11 in consideration of an assembly error of the guide rail 11 with respect to the door panel 10. The guide shoe 21 is simply engaged with the guide rail 11. There is a risk that problems such as chattering may occur when the window glass 13 is raised or lowered. In particular, as shown in FIG. 16 , the guide rail 11 is curved in the thickness direction (plate thickness direction) according to the curvature of the door panel 10 and the window glass 13, so that the slider 12 swings in the bending direction. Cheap. In order to prevent such shaking, the slider 12 is provided with an elastic lip 22 for steadying. In the example of FIG. 17, three elastic lips 22 </ b> A, 22 </ b> B, and 22 </ b> C are provided to stably support the slider 12 with respect to the curved guide rail 11. Each elastic lip 22A, 22B, 22C is made of synthetic resin and has flexibility. Among these, the elastic lips 22A and 22C on both sides abut on the surface side of the guide rail 11 facing the base plate 20 (the left side surface in FIG. 16), and the central elastic lip 22B is on the back side of the guide rail 11 (see FIG. 16 and the guide rail 11 is clamped from both sides by these three elastic lips 22A, 22B and 22C. Each elastic lip 22 is elastically deformed in the sandwiched state, and the clearance between the guide shoe 21 and the guide rail 11 is absorbed by this elastic deformability, and the slider 12 is held without play.

When a plurality of steady rests (elastic lips) are provided between a pair of guide shoes as in the slider 12 of FIG. 17, in the conventional slider, the plurality of steady rests are independent of the pair of guide shoes. Formed as a molded part. Therefore, the distance (shoe pitch) between the pair of guide shoes tends to be long (large), and it is difficult to reduce the size of the slider. Accordingly, an object of the present invention is to reduce the size and weight of the window regulator device while ensuring the smoothness and stability of the operation of the slider.

In order to achieve the above object, the present invention provides a slider having a base plate that supports a window glass, a guide rail that slidably supports the slider and is curved in the thickness direction of the window glass , and the slider is a guide rail. In the window regulator apparatus having a drive mechanism for moving the window glass up and down along with the slider, a pair of synthetic resin molding portions are provided on the base plate of the slider so as to be separated from each other in the sliding direction of the slider. A guide shoe that slidably engages with the guide rail and an elastically deformable steady rest that elastically contacts the guide rail and stabilizes the slider in the bending direction of the guide rail are integrally formed on each resin molded portion. It is characterized by.

A pair of slide stop portion contacts the one surface of the front and back of the bending direction of the respective guide rails, the bending direction of the pair of elastic deflection further between retaining portion, and a pair of synthetic resin molded portion is formed separately from the guide rail It is desirable to provide an intermediate steady rest that elastically contacts the other surface of the front and back .

  In each of the pair of synthetic resin molded portions, it is preferable that the guide shoe is located closer to the outer edge portion of the base plate than the steady rest portion.

The base plate of the slider is preferably a metal member.

According to the present invention as described above, while the smoothness and stability of the operation of the slider are ensured by the steadying portion, the steadying portion and the guide shoe are integrally formed to reduce the size and weight of the slider in the forward and backward direction. Is achieved.

  FIG. 1 shows a slider 30 for a window regulator to which the present invention is applied. 2 and 3 are side views of the slider 30, and FIGS. 3 to 10 are cross sections of the slider 30 along the sectional line shown in FIG. In each cross-sectional view, only the metal part is hatched. The overall structure of the window regulator device on which the slider 30 is mounted is the same as that described in the background art, and a detailed description thereof will be omitted (the same reference numerals are used for common members). That is, the slider 30 of this embodiment is mounted instead of the slider 12 of FIG. In the following description of the slider 30, the front surface refers to the surface on the side shown in FIG. 1, and the back surface refers to the surface on the opposite side (the back side of the paper).

  In the slider 30, first to third resin molding parts (synthetic resin molding parts) 32, 33 and 34 are formed on a metal base plate 31. Each resin molding part is formed by injection molding. The first resin molding part 32 and the second resin molding part 33 are spaced apart from each other in the advancing / retreating direction of the slider 30 with respect to the guide rail 11 (left-right direction in FIG. 1). The third resin molding part 34 is located between the molding parts 33. As can be seen from FIGS. 1 to 3, the first resin molding portion 32 is provided on one side of the base plate 31, and the second resin molding portion 33 is provided on the other side of the base plate 31.

  In the first resin molding portion 32, a guide shoe 35 and an elastic lip (an anti-rest portion) 36 are integrally molded. In the first resin molding portion 32, the guide shoe 35 is located on the outer edge side of the base member 31, and the elastic lip 36 is located on the inner side (side closer to the third resin molding portion 34). 2 and 4, the guide shoe 35 includes a first claw portion 35a substantially parallel to the base plate 31, a rail holding recess 35b on the inner surface side of the first claw portion 35a, and a first claw portion 35a. And a second claw portion 35c that defines the opening shape of the rail holding recess 35b. The guide rail 11 is slidably engaged with the guide shoe 35. The mode of engagement will be described later.

  A through hole 37 penetrating the front and back of the slider 30 is formed at a position adjacent to the guide shoe 35, and the elastic lip 36 protrudes from the back side of the slider 30 toward the front side through the through hole 37. More specifically, as shown in FIG. 5, the elastic lip 36 has an arm portion 36 b extending obliquely from the base portion 36 a connected to the back surface side of the base plate 31 toward the front surface side of the slider 30. The tip of the portion 36 b is an arc-shaped contact portion 36 c that is folded back in a direction approaching the base plate 31. The elastic lip 36 formed as a part of the first resin molding portion 32 has flexibility, and the amount of protrusion to the surface side of the slider 30 can be changed by elastic deformation.

  Similar to the first resin molding part 32, the second resin molding part 33 is integrally formed with a guide shoe 38 and an elastic lip (an anti-rest part) 39. As can be seen from FIGS. 3, 8, and 9, the guide shoe 38 and the elastic lip 39 are substantially symmetrical with the guide shoe 35 and the elastic lip 36 of the first resin molding portion 32 across the third resin molding portion 34. It has a shape. That is, the guide shoe 38 is positioned on the outer edge side of the base member 31 and the elastic lip 39 is positioned on the inner side (side closer to the third resin molding portion 34). The guide shoe 38 includes a first claw portion 38a substantially parallel to the base plate 31, a rail holding recess 38b on the inner surface side of the first claw portion 38a, and a rail holding recess facing the tip portion of the first claw portion 38a. And a second claw portion 38c that defines the opening shape of 38b. Further, a through hole 40 penetrating the front and back of the slider 30 is formed at a position adjacent to the guide shoe 38, and the elastic lip 39 is an arm portion 39 b extending obliquely from a base portion 39 a connected to the back side of the slider 30. Protrudes to the surface side of the slider 30 through the through hole 40. An arcuate abutting portion 39c is formed at the protruding end of the arm portion 39b so as to be folded back toward the base plate 31. The elastic lip 39 has flexibility, and the amount of protrusion toward the surface of the slider 30 can be changed by elastic deformation.

  The second resin molding portion 33 is further integrally formed with a wire support portion 41 and a rain removal portion 42. The wire support portion 41 has a stopper storage space 41a into which a wire stopper (not shown) connected to the ends of the upper wire 16 and the lower wire 17 is inserted, and a slit 41b communicating with the stopper storage space 41a. . The upper wire 16 and the lower wire 17 are inserted into the stopper storage space 41a through the slit 41b and fixed to the wire stopper. When the upper wire 16 and the lower wire 17 are pulled, the pulling force is transmitted to the slider 30 via the wire stopper. Moreover, the rain removal part 42 is provided in the shape of a long piece on the back side of the base plate 31, and is used to transmit rain and remove it.

  An elastic lip (intermediate steady rest part) 43 is formed in the third resin molding part 34. As shown in FIG. 6, the elastic lip 43 has an arm portion 43a located on the surface side of the slider 30, and a contact portion 43b having a spherical cross section is formed at the tip of the arm portion 43a. The arm portion 43a is inclined so as to approach the base plate 31 as it approaches the tip portion (contact portion 43b), contrary to the arm portion 36b of the elastic lip 36 and the arm portion 39b of the elastic lip 39. The elastic lip 43 has flexibility and can displace the position of the contact portion 43b in a direction approaching and separating from the base plate 31.

  FIG. 10 shows the positional relationship between the first resin molding part 32, the second resin molding part 33, and the third resin molding part 34 in the direction orthogonal to the plate surface of the base plate 31. The guide shoe 35 (first claw portion 35a and rail holding recess 35b) of the first resin molding portion 32 and the guide shoe 38 (first claw portion 38a and rail holding recess 38b) of the second resin molding portion 33 are formed on the base plate 31. The amount of protrusion from is substantially equal. In other words, the rail holding recess 35 b and the rail holding recess 38 b on both sides are located on the same line in the direction parallel to the plate surface of the base plate 31. When the space on the extension of the rail holding recesses 35b and 38b is a rail insertion space S, the elastic lip 36 formed integrally with the guide shoe 35 and the elastic lip 39 formed integrally with the guide shoe 38 are respectively The contact portion 36c and the contact portion 39c are positioned on the rail insertion space S. In the free state of the elastic lips 36, 39, the abutting portion 36c and the abutting portion 39c are located at positions close to the base plate 31 in the rail insertion space S (positions far from the extension of the first claw portions 35a, 38a). is there. If the most projecting portions of the contact part 36c and the contact part 39c at this time are P1 and P2, respectively, P1 and P2 are located on substantially the same plane. On the other hand, in the free state of the elastic lip 43, the contact portion 43b is also located in the rail insertion space S, but the contact portion 43b is located farther from the base plate 31 than the contact portions 36c and 39c on both sides. When the most projecting portion of the contact portion 43b is P3, a predetermined phase D is set between P3, P1, and P2 in a direction orthogonal to the plate surface of the base plate 31.

When the window regulator is in use, the edge 11a of the guide rail 11 is inserted into the rail holding recesses 35b and 38b of the guide shoes 35 and 38 (see FIGS. 11 and 12). Although a specific attachment procedure will be described later, in the inserted state, the slider 30 is supported by the guide shoes 35 and 38 so as to be slidable in the longitudinal direction of the guide rail 11, and the first claw portions 35a and 38a and the second claw portions 35a and 38a. The claw portions 35b and 38b prevent the guide rail 11 from falling off. At this time, the rail holding recesses 35b, 38b are loosely fitted to the guide rail 11, it is elastically supported at three points of the elastic lips 36, 39 and 43 (sandwich) Shi versus the guide rail 11 by The deflection in the bending direction (the thickness direction of the window glass 13) is prevented. That is, the guide rail 11 inserted into the rail holding recesses 35b and 38b is located in the rail insertion space S, and the contact portions 36c, 39c and 43b, which are also located in the rail insertion space S, serve as the guide rail 11. The elastic lips 36, 39 and 43 are elastically deformed by being pressed, and the guide rail 11 is sandwiched by the restoring force to stabilize the slider 30. Specifically, as shown in FIG. 13, the abutting portion 36 c and the abutting portion 39 c are in contact with one of the front and back surfaces of the guide rail 11 in the bending direction ( the surface facing the base plate 31). The elastic lip 36 and the elastic lip 39 are pushed in a direction approaching the base plate 31 and elastically deformed. Moreover, as shown in FIG. 14, the contact part 43b is contact | abutted to the other surface (surface on the side facing the 1st nail | claw part 35a and the 1st nail | claw part 38a) of the front and back of the curve direction of the guide rail 11. The elastic lip 43 is pushed in a direction away from the base plate 31 to be elastically deformed. Thus, the elastic lip 36 and 39 and an intermediate resilient lip 43 at both ends sandwich the guide rail 11 which is curved from opposite sides of the curved (thickness) direction, the guide rails 11 between these (the edge portion) The aforementioned phase D is ensured according to the thickness. The positional phase between the elastic lips or the amount of protrusion of each elastic lip from the base plate 31 can be arbitrarily set according to the plate thickness and curvature of the guide rail so as to obtain an appropriate holding force.

  Details of the operation of attaching the slider 30 to the guide rail 11 are as follows. As shown in FIGS. 11 to 14, the edge portion 11a of the guide rail 11 is bent in a direction substantially orthogonal to the main body portion 11b, and the intermediate portion is bent again in a direction along the main body portion 11b. However, the tip portion is curved so as to be convex toward the base plate 31 side of the slider 30. The tip of the edge portion of the conventional guide rail is often a flat plate parallel to the main body. The cross-sectional shapes of the rail holding recesses 35 b and 38 b in the guide shoes 35 and 38 are curved so as to be convex toward the base plate 31 side corresponding to the edge portion 11 a of the guide rail 11. Further, the tips of the first claw portions 35a and 38a also have a convex arc shape in cross section. Therefore, as shown by broken lines in FIGS. 11 and 12, the end (edge) of the edge 11a of the guide rail 11 is used as the opening of the rail holding recesses 35b and 38b (first claw 35a and 38a and second claw When the guide rail 11 and the slider 30 are rotated relative to each other about the straight line connecting the first claw portions 35a and 38a on both sides in a state of being along the gaps 35c and 38c), the edge portion 11a of the guide rail 11 is gradually moved. Into the rail holding recesses 35b and 38b. When the edge portion 11a enters the rail holding recesses 35b and 38b up to the position indicated by the solid line in FIGS. 11 and 12, the edge portion 11a is shown in the figure by the first claw portions 35a and 38a and the second claw portions 35c and 38c. Drop-off in the vertical direction is restricted, and drop-off in the left-right direction in the figure is restricted by the first claw portion 35a (and the main body portions of the resin molding portions 32 and 33 facing the first claw portion 35a). . At the same time when the guide rail 11 is attached to the guide shoes 35, 38, one side surface of the edge portion 11a (the convex side of the guide rail 11) is formed on the contact portions 36c, 39c of the elastic lips 36, 39 as shown in FIG. The elastic lips 36 and 39 are elastically deformed by contact, and the other side surface of the edge portion 11a (concave surface side of the guide rail 11) contacts the contact portion 43b of the elastic lip 43 as shown in FIG. 43 is elastically deformed to be in the above-described steady state. As described above, in this embodiment, the slider 30 can be attached to the guide rail 11 by a rotation operation about an axis substantially parallel to the advancing / retreating direction of the slider 30. Many conventional sliders are attached by inserting them in the sliding direction from one end of the guide rail, and there are many restrictions during work. On the other hand, in the structure of the present embodiment, the slider 30 can be mounted at an arbitrary position in the longitudinal direction with respect to the guide rail 11, so that the slider 30 can be easily attached even after other parts are assembled to the guide rail 11. It is excellent in workability.

As described above, in the present embodiment , the slider 30 is elastically held in the bending direction with respect to the curved guide rail 11 by the three locations of the elastic lips 36 and 39 on both sides and the intermediate elastic lip 43. The back and forth operation of the window can be performed reliably and stably while suppressing the backlash of the slider 30. Since the elastic lips 36 and 39 on both sides of these elastic steady rests are formed integrally with the guide shoes 35 and 38, respectively, the elastic steady rest (elastic lips 36 and 39) and the slide guide part (guide shoes 35 and 38) are formed. ) Is omitted, and the shoe pitch (the distance between the guide shoes 35 and 38) can be made smaller than before. That is, the slider 30 can be downsized. Further, as the size is reduced, the area of the base plate 31 is reduced, and the weight of the slider 30 is reduced.

  In this embodiment, the elastic lips 36 and 39 on both sides are formed integrally with the guide shoes 35 and 38, but the elastic lips 36 and 39 on both sides are not the guide shoes 35 and 38 but the intermediate elastic lip 43. Even if they are integrally formed, only three resin molding portions on the slider 30 are required. However, in order to stably hold the slider 30, a predetermined interval is required between the three elastic lips, and it is difficult to reduce the size of the slider in an embodiment in which the three elastic lips are integrally formed. For example, when the elastic lips 36 and 39 are formed integrally with the elastic lip 43 instead of the guide shoes 35 and 38, the positions of the elastic lips 36 and 39 are shifted closer to the center of the slider 30 than the positions shown in FIG. Thus, the effective support length for the guide rail 11 is reduced. As a result, it becomes difficult to effectively prevent the slider 30 from shaking. Alternatively, if the elastic lips 36 and 39 on both sides are separated as much as shown in FIG. 1 while integrally forming the three elastic lips, the distance between the guide shoes 35 and 38 becomes wider than that in FIG. The effect is impaired. On the other hand, in the present embodiment, the elastic lips 36 and 39 on both sides are separated to the position closest to the guide shoes 35 and 38, so that the interval between the elastic lips is sufficiently increased without increasing the distance between the guide shoes 35 and 38. Therefore, the slider 30 can be stably held.

As mentioned above, although this invention was demonstrated based on illustration embodiment, this invention is not limited to this embodiment. The gist of the present invention is to integrally form a pair of guide shoes and steady rests on both sides of the slider advance / retreat direction , and the support mode of the intermediate part depends on conditions such as the curvature of the guide rail and the shape of the slider. It can be changed as appropriate. From the viewpoint of compatibility between the simplicity of the configuration and the support stability, it is preferable to provide one elastic lip 43 at the intermediate portion as in the embodiment, but it is also possible to provide a plurality of intermediate elastic lips, A support structure having a different form from the elastic lip may be used. Alternatively, the intermediate elastic lip can be omitted on the assumption that necessary and sufficient support stability is obtained. For example, as a modification of the illustrated embodiment, the intermediate elastic lip 43 may be omitted, and the first claw portions 35a and 38a may always be in contact with one side portion of the guide rail 11. In any of these aspects, by applying the present invention, both stability and miniaturization of the slider can be achieved.

It is a front view of the slider in the window regulator apparatus to which this invention is applied. It is an II arrow directional view of FIG. FIG. 3 is a view taken in the direction of arrow III in FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing which follows the VV line of FIG. It is sectional drawing which follows the VI-VI line of FIG. It is sectional drawing which follows the VII-VII line of FIG. It is sectional drawing which follows the VIII-VIII line of FIG. It is sectional drawing which follows the IX-IX line of FIG. It is sectional drawing which follows the XX line of FIG. It is a side view which shows the relationship between the guide rail and guide shoe in the mounting operation | work of the slider to a guide rail. FIG. It is a sectional side view which shows the contact state of the guide rail and the elastic lip of both sides in the mounting operation | work of the slider to a guide rail. It is a sectional side view which shows the contact state of the guide rail and intermediate | middle elastic lip in the mounting | wearing operation | movement of the slider to the guide rail. It is a key map showing one mode of a window regulator device to which the present invention is applied. FIG. 16 is an XVI arrow view of the window regulator device of FIG. 15. It is a figure which shows the one aspect | mode of the conventional slider in a window regulator apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door panel 11 Guide rail 13 Window glass 30 Slider 31 Base plate 32 1st resin molding part 33 2nd resin molding part 34 3rd resin molding part 35 38 Guide shoe 35a 38a 1st nail | claw part 35b 38b Rail holding recessed part 35c 38c 2nd nail | claw part 36 39 Elastic lip (rest part)
36a 39a Base part 36b 38b Arm part 36c 39c Contact part 43 Elastic lip (intermediate steady rest part)
43a Arm part 43b Contact part

Claims (4)

A slider provided with a base plate for supporting the window glass, a guide rail that supports the slider so as to be slidable and curved in the thickness direction of the window glass , and moves the slider along the guide rail to raise and lower the window glass. In a window regulator device having a drive mechanism,
A pair of synthetic resin molded portions are provided on the slider base plate so as to be separated from each other in the sliding direction of the slider, and a guide shoe is slidably engaged with the guide rail in each of the pair of synthetic resin molded portions. And an elastically deformable steady rest that elastically contacts the guide rail and stabilizes the slider in the bending direction of the guide rail . 2. The window regulator device according to claim 1, wherein each of the pair of steady rests is in contact with one surface of the front and back surfaces of the guide rail in the bending direction , and the pair of synthetic resin is interposed between the pair of elastic steady rests. A window regulator device having an intermediate steady stop portion that is formed separately from the molding portion and elastically contacts the other surfaces of the guide rail in the bending direction . 3. The window regulator device according to claim 1, wherein in each of the pair of synthetic resin molding portions, the guide shoe is located closer to an outer edge portion of the base plate than the steadying portion. 4. 4. The window regulator device according to claim 1, wherein the base plate of the slider is a metal member.

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