Window regulator

Abstract

A window regulator (1) can prevent a large force from being applied to an arm member. A first arm (50), one end side of which is rotatably supported by a vehicle member (10) constituting a door and the other end side of which is rotatably supported by the bracket; and a second arm (60), one end side of which is rotatably supported by the vehicle member and the other end side of which is rotatably supported by the bracket. And a drive member (20) that drives a bracket that supports the window glass by driving and rotating the first arm and the second arm. The rotation center axis of one end side of the first arm and the rotation center axis of one end side of the second arm are staggered in the driving direction of the bracket for supporting the window glass. The rotation center axis of the other end side of the first arm and the rotation center axis of the other end side of the second arm are staggered in the driving direction of the bracket supporting the window glass.

Description

Technical Field

[0001] The invention relates to a vehicle window regulator. Background Art

[0002] Patent document 1 describes an arm-type window regulator device for raising and lowering a window glass of a car. In the window regulator device, a door inner panel is arranged on the inner side of a door outer panel of a vehicle body in the vehicle width direction, and a side beam is arranged on the door outer panel between the door outer panel and the door inner panel and along the front-rear direction of the vehicle body. A guide rail for conveying the window glass is arranged between the door outer panel and the door inner panel along the front-rear direction of the vehicle body, and a connecting rod is arranged in the guide rail so as to be freely engaged along the length direction. One end portion and a portion close to the one end portion of the connecting rod are respectively freely engaged with the guide rail, and a bottom plate is arranged on the door inner panel. A main arm is freely swingably arranged on the bottom plate, and a sub-arm parallel to the main arm is freely swingably arranged on the side beam. The top end portion of the main arm is rotatably connected to the connecting rod, and the top end portion of the sub-arm is rotatably connected to the connecting rod.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 6-26264

[0006] Technical problem to be solved by the invention

[0007] However, the window regulator device of Patent Document 1 has the following problem: when the main arm and the auxiliary arm rotate, especially when the main arm and the auxiliary arm overlap when viewed from the direction of the rotation axis of the main arm and the auxiliary arm, a large force (a force intended to deform the main arm and the auxiliary arm) is applied to the main arm and the auxiliary arm. Summary of the invention

[0008] The present invention has been made based on the above-mentioned problem awareness, and an object of the present invention is to provide a window regulator capable of preventing a large force from being applied to an arm member.

[0009] Technical means for solving technical problems

[0010] The window regulator of this embodiment comprises: a bracket that supports a window glass; a first arm, one end of which is rotatably supported on a vehicle component that constitutes a door, and the other end of which is rotatably supported on the bracket; a second arm, one end of which is rotatably supported on the vehicle component, and the other end of which is rotatably supported on the bracket; and a driving component, which drives the bracket that supports the window glass by driving and rotating the first arm and the second arm, the rotation center axis of the one end of the first arm and the rotation center axis of the one end of the second arm are offset in the driving direction of the bracket that supports the window glass, and the rotation center axis of the other end of the first arm and the rotation center axis of the other end of the second arm are offset in the driving direction of the bracket that supports the window glass.

[0011] Effects of the Invention

[0012] According to the present invention, a window regulator can be provided in which the rotation center axes of the first arm and the second arm are offset in the driving direction of the bracket so that the first arm and the second arm do not overlap and a strong force can be prevented from being applied to the arm member. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The diagram shows the fully open position, the fully closed position, and the intermediate position of the window regulator when viewed from the vehicle width direction.

[0014] Figure 2 This is an exploded perspective view of the components of a window regulator.

[0015] Figure 3 The figure shows the fully closed position of the window regulator as viewed from the vehicle width direction.

[0016] Figure 4A , Figure 4B , Figure 4C It is along Figure 3 Cross-sectional views along line 4A-4A, line 4B-4B, and line 4C-4C.

[0017] Figure 5 This is an enlarged view showing the single body structure of the base.

[0018] Fig. 6A , Figure 6B , Figure 6C , Fig.6D , Fig. 6E It is along Figure 5 Cross-sectional views along lines 6A-6A, 6B-6B, 6C-6C, 6D-6D, and 6E-6E.

[0019] Fig. 7AThis is an enlarged view showing the monomer structure of the first arm. Figure 7B It is along Fig. 7A A cross-sectional view of line 7B-7B.

[0020] Fig. 8A is an enlarged view showing the monomer structure of the second arm. Figure 8B It is along Fig. 8A A cross-sectional view of line 8B-8B.

[0021] Fig.9A This is an enlarged view showing the single body structure of the bell crank. Fig. 9B It is along Fig.9A The cross-sectional view of line 9B-9B, Fig. 9C It is along Fig.9A A cross-sectional view of line 9C-9C.

[0022] Fig.10 This is a diagram of the window regulator as viewed from above and below.

[0023] Fig.11 This is a diagram showing a window regulator according to another embodiment at a fully opened position, as viewed from the vehicle width direction.

[0024] Fig.12 This is a diagram showing an intermediate position of a window regulator according to another embodiment, as viewed from the vehicle width direction.

[0025] Fig.13 This is a diagram showing a fully closed position of a window regulator according to another embodiment, as viewed from the vehicle width direction.

[0026] FIG. 14 is an enlarged view showing the single body structure of the bell crank.

[0027] Fig.15 It is an enlarged view showing the single body structure of the first arm.

[0028] Figure 16 is along Fig.15 Cross-sectional views of line 16A, line 16B, and line 16C.

[0029] FIG. 17 is a diagram showing still another embodiment of a window regulator. DETAILED DESCRIPTION

[0030] The "window regulator" specified in the scope of protection claimed by the present invention is used as a concept that includes both a window regulator in a state of being assembled in an automobile (vehicle) and a window regulator in a state of a component (sub-component) before being assembled in an automobile (vehicle) (both are included in the technical scope of the patent invention). In addition, "rotation" and "rotation" can also be interchangeable (can also be synonymous). In addition, "rotation support part (rotation support part)" and "rotation center axis (rotation center axis)" can also be interchangeable (can also be synonymous). For example, the rotation center (rotation center) of the rotation support part (rotation support part) can also be called the rotation center axis (rotation center axis).

[0031] Reference Figures 1 to 10 , the window regulator 1 of this embodiment is described in detail. The up-down direction, the front-back direction, and the vehicle width direction (the vehicle interior and exterior direction) used below are described based on the arrow directions marked in each figure. For example, Figure 1 , Figure 3 It is a diagram viewed from the inside of the vehicle in the vehicle width direction (the front side of the paper is the inside of the vehicle and the back side of the paper is the outside of the vehicle). In addition, the up and down direction can also be replaced by "vehicle up and down direction", and the front and rear direction can also be replaced by "vehicle front and rear direction" (they can also be synonymous).

[0032] The window regulator 1 of the present embodiment is mounted inside a door panel of a right front seat (driver's seat in the case of a right steering wheel) of an automobile (vehicle), and raises and lowers (opens and closes) the window glass W of the right front seat (in the case of a right steering wheel). Figure 3 Window glass W is depicted in FIG. 1 ). In addition, the window regulator 1 may be mounted inside a door panel of a left front seat (passenger seat in the case of a right steering wheel) or a rear seat of a car to raise or lower the window glass of the seat.

[0033] The window regulator 1 includes a base (bottom plate) 10 , a motor unit (driving member) 20 , a bracket (lifting arm bracket) 30 , a bell crank (sliding member) 40 , a first arm (main arm, lifting arm, arm member) 50 , and a second arm (sub-arm, EQ lever, arm member) 60 .

[0034] The base 10 is a basic part of the window regulator 1 that directly or indirectly supports the motor unit 20, the bracket 30, the bell crank 40, the first arm 50, the second arm 60, and other various components. The base 10 is assembled in the automobile (vehicle) as a basic part of the window regulator 1 in the assembly (subassembly) state (assembly is performed based on the base 10). Figure 5As shown in the figure, the base 10 has insertion holes 11 located at four corners, and four fastening components (not shown) inserted into the respective insertion holes in the insertion holes 11 are fastened (fastened together) to the door panel (inner panel, outer panel). That is, the base 10 is assembled only to one of the inner panel or the outer panel of the vehicle. It also includes components installed on the inner panel or the outer panel. It can be directly installed on the inner panel or the outer panel, or it can be installed indirectly. Furthermore, the base 10 can also be equivalent to "a vehicle component constituting a door". Furthermore, the base 10 of the present embodiment is composed of a single component, but it can also be composed of a component obtained by combining (combining, joining) a plurality of components, or a plurality of components located at separate positions. In the case of being composed of a plurality of components located at separate positions, it can also be that one of the plurality of bases supports the first arm, and another of the plurality of bases supports the second arm.

[0035] The motor unit 20 includes a motor and a built-in gear mechanism for transmitting the rotational driving force of the motor to the first arm 50 (a driven gear 53 described later). Figure 2 , Figure 5 As shown in the figures, the base 10 has a fitting hole 12 and three insertion holes 13 located around the fitting hole 12. The central axis (e.g., a sawtooth axis) of the built-in gear mechanism of the motor unit 20 is fitted into the fitting hole 12, and three fastening members 13X are inserted into the three insertion holes 13 and fastened to the fastening holes of the motor unit 20, thereby supporting the motor unit 20 on the base 10 (see Figure 2 In this supported state, the rotational driving force of the motor unit 20 is transmitted to the first arm 50 (driven gear 53 described later).

[0036] The bracket 30 is a channel member extending in the front-rear direction (extension direction). Two insertion holes 31 are formed on both sides of the bracket 30 in the front-rear direction. The window glass W ( Figure 3 ) is supported by the bracket 30. A sliding rail 32 extending in the front-to-back direction is formed in the middle of the two insertion holes 31 in the bracket 30, and the bell crank 40 is supported on the sliding rail 32 so as to be slidable in the front-to-back direction (extension direction). The bell crank 40 can also be understood as a part of the bracket 30.

[0037] like Figure 2As shown in FIG. 9 and the like, the bell crank 40 is a substantially L-shaped (substantially boomerang-shaped) component consisting of a first side portion 41 extending in the front-to-back direction (the direction in which the sliding rail 32 of the bracket 30 extends) and a second side portion 42 bent downward (in a direction intersecting the direction in which the sliding rail 32 of the bracket 30 extends) from the rear end portion of the bracket 30. A through hole 43 is provided on the front side of the first side portion 41, a through hole (rotation support hole) 44 is provided on the lower side of the second side portion 42, and a through hole (rotation support hole) 45 is provided at the connection portion between the first side portion 41 and the second side portion 42. Two sliding shoes 43X and 45X separated in the front-to-back direction are slidably supported on the sliding rail 32 of the bracket 30 in the front-to-back direction, and the fitting pin of the sliding shoe 43X fits in the through hole 43, and the fitting pin of the sliding shoe 45X fits in the through hole 45. In this way, the bell crank 40 is supported by the slide rail 32 of the bracket 30 so as to be slidable in the front-rear direction (extending direction).

[0038] One end side of the first arm 50 is rotatably supported by the base 10, and the other end side is rotatably supported by the bracket 30 (bell crank 40). Figure 2 7, etc., a rotation support hole 51 is provided at a position slightly closer to the middle than one end of the first arm 50, and a rotation support hole 52 is provided at the other end of the first arm 50. In addition, a driven gear 53 is provided at one end of the first arm 50 (at a position closer to the top end than the rotation support hole 51). The driven gear 53 is a gear component having a tooth portion (gear mechanism) 53X. Figure 2 , Figure 5 As shown in FIG. 1 , a rotation support hole 14 is formed in the base 10, and the rotation support hole 14 and the rotation support hole 51 are coaxially located to insert and support the rotation support pin P3 ( Figure 4C ), whereby one end side of the first arm 50 is rotatably supported on the base 10. In this supported state, the driven gear 53 meshes with the central axis (e.g., a sawtooth axis) of the built-in gear mechanism of the motor unit 20 to transmit the rotational driving force of the motor unit 20 to the first arm 50. Furthermore, the rotation support hole 52 of the first arm 50 is rotatably inserted and supported by the engaging pin of the sliding shoe 45X in a state aligned with the through hole 45 of the bell crank 40. Thus, the other end side of the first arm 50 is rotatably supported on the bracket 30 (bell crank 40).

[0039] One end side of the second arm 60 is rotatably supported by the base 10, and the other end side is rotatably supported by the bracket 30 (bell crank 40). Figure 2As shown in FIG. 8 and the like, the second arm 60 has a narrow portion 61 located between one end and the other end, and a wide portion 62 located between one end and the other end. A rotation support hole 63 is provided through the wide portion 62 at one end of the second arm 60, and a rotation support hole 64 is provided through the wide portion 62 at the other end of the second arm 60. Figure 2 , Figure 5 As shown in the figure, the base 10 is formed with a rotation support hole 15, and the rotation support hole 15 and the rotation support hole 63 are coaxially arranged to insert and support the rotation support pin P1 ( Figure 4B , Figure 4C ), whereby one end side of the second arm 60 is rotatably supported on the base 10. Furthermore, by inserting the rotation support pin P2 ( Figure 4B ), so that the other end side of the second arm 60 is rotatably supported by the bracket 30 (bell crank 40). In this way, the second arm 60 has: a narrow width portion 61, which is located in the middle of the one end side and the other end side; a wide width portion 62 (rotation support hole 63), which is located at the one end side and is rotatably supported by the base 10; and a wide width portion 62 (rotation support hole 64), which is located at the other end side and is rotatably supported by the bracket 30 (bell crank 40). By setting one end and the other end of the second arm 60 formed with the rotation support holes 63 and 64 as the wide width portion 62, the same rigidity as the narrow width portion 61 can be ensured (uniform rigidity can be ensured throughout the length direction of the second arm 60).

[0040] The width of the first arm 50 is greater than that of the second arm 60 in the longitudinal direction of the first arm 50 and the second arm 60. By optimally setting the width and the arm length of the first arm 50 and the second arm 60, the first arm 50 and the second arm 60 and the window regulator 1 can be metered and driven smoothly.

[0041] As referenced later Fig.10 As described above, when viewed from the top and bottom direction (vehicle top and bottom direction), at least a portion of the first arm 50 and the second arm 60 overlap (there is a portion where the first arm 50 and the second arm 60 overlap). As a result, the window regulator 1 can be miniaturized (thinned) in the vehicle width direction. In the conventional products including the above-mentioned Patent Document 1, the main arm and the auxiliary arm do not overlap in the top and bottom direction, and are separated in the vehicle width direction, which results in a larger (thicker) window regulator in the vehicle width direction.

[0042] Furthermore, one end side of the first arm 50 and one end side of the second arm 60 are rotatably supported by the base 10 so as to be offset in the driving direction of the bracket 30 supporting the window glass W and the vehicle width direction.

[0043] Here, as in Figure 3 As indicated by the symbols in , the rotation support position (rotation center) of one end side of the first arm 50 relative to the base 10 is called "rotation axis R1", the rotation support position (rotation center) of the other end side of the first arm 50 relative to the bracket 30 (bell crank 40) is called "rotation axis R2", the rotation support position (rotation center) of one end side of the second arm 60 relative to the base 10 is called "rotation axis R3", and the rotation support position (rotation center) of the other end side of the second arm 60 relative to the bracket 30 (bell crank 40) is called "rotation axis R4". A four-bar linkage rotation fulcrum (four-bar linkage adjuster) is formed as follows: the rotation axes R1-R4 are different from each other, and the distances between the rotation axes R1 and R2 and the distances between the rotation axes R3 and R4 are equal to each other, and the short sides are formed with the distances between the rotation axes R1 and R3 and the distances between the rotation axes R2 and R4 being equal to each other.

[0044] When the base 10 is fixed to the automobile (vehicle), the rotational driving force of the motor unit 20 is transmitted to the first arm 50, and the rotational driving force is also transmitted to the second arm 60, resulting in the bracket 30 and the window glass W being raised and lowered (driven) in the vertical direction (driving direction). Figure 1 As shown in the fully open position, fully closed position, and intermediate position in the figure, the long sides of the four-bar pivot (the sides connecting the rotation axis R1 and the rotation axis R2, and the rotation axis R3 and the rotation axis R4, respectively) are parallel to each other, the short sides of the four-bar pivot (the sides connecting the rotation axis R1 and the rotation axis R3, and the rotation axis R2 and the rotation axis R4, respectively) are parallel to each other, and the first arm 50 and the second arm 60 do not cross each other (only the angle of the parallelogram changes). The first arm 50 is directly transmitted with the rotational driving force of the motor unit 20 and mainly bears the lifting function of the window glass W. In this sense, it can also be called the main arm. The second arm 60 is indirectly transmitted with the rotational driving force of the motor unit 20 and auxiliaryly bears the lifting function of the window glass W (also bears the anti-rotation function described later). In this sense, it can also be called the auxiliary arm. In summary, the motor unit 20 functions as a "driving component" that raises and lowers (drives) the bracket 30 supporting the window glass W by rotationally driving (directly driving) the first arm 50 relative to the base 10 and the bracket 30, and rotationally driving (driven driving) the second arm 60 relative to the base 10 and the bracket 30.

[0045] However, the conventional window regulator has the following problem: a force in the rotational direction is applied to the window glass at or near the top dead center of the window glass, causing the window glass to rotate. This phenomenon is caused by insufficient length of the glass end, and is more problematic in front doors where the length of the glass end is easily shortened (not problematic in rear doors where the length of the glass end is easily ensured).

[0046] As the types of conventional window regulators, single-arm and X-arm window regulators are known, but the single-arm window regulator cannot completely eliminate the problem of applying a force in a rotational direction to the windshield, causing the windshield to rotate, especially when applied to the windshield. On the other hand, the X-arm window regulator can achieve a certain effect of preventing the window glass from rotating, but the structure is complex and large, and it is also easy to lead to high costs.

[0047] Therefore, in the window regulator 1 of the present embodiment, a four-link rotation fulcrum (four-link regulator) based on the base 10, the bracket 30, the first arm 50 and the second arm 60 is realized, and the force of the window glass W that is intended to rotate to the front side (preventing forward tilting) is received by the cooperative action of the first arm 50 and the second arm 60 at or near the top dead center of the window glass W. More specifically, the first arm 50 performs the main function of raising and lowering the bracket 30 (window glass W), while the second arm 60 supported by the bell crank 40 directly below the first arm 50 at or near the top dead center of the window glass W auxiliary supports the first arm 50, thereby receiving the force of the window glass W that is intended to rotate to the front side (preventing forward tilting). In addition, the four-link regulator of the present embodiment has the advantages of simple structure, small size and low cost compared to the X-arm type window regulator.

[0048] Furthermore, the window regulator 1 of the present embodiment forms a four-link pivot point (four-link regulator) as follows: in the assembly (subassembly) state before being assembled to the automobile (vehicle), one end side of the first arm 50 and the second arm 60 is supported on the base 10 in a rotatable manner at different positions, and the other end side of the first arm 50 and the second arm 60 is supported on the bracket 30 (bell crank 40) in a rotatable manner at different positions. Therefore, it is possible to simplify the installation to the automobile (vehicle) (the structure and process of installation can be simplified, and the man-hour and deviation can be reduced). More specifically, the window regulator 1 is installed to the automobile (vehicle) only by inserting four fastening members (not shown) through the four insertion holes 11 of the base 10 and fastening (fastening together) to the door panel. In addition, it is only necessary to support the window glass W on the bracket 30 at an appropriate time. On the other hand, in the above-mentioned Patent Document 1, since the auxiliary arm is swingably provided on the side sill disposed inside the door outer panel, the man-hours and variations in installation to the automobile (vehicle) increase.

[0049] like Figure 2 , Figure 4B , Figure 6B , Figure 6C As shown in the figures, the base 10 has a side wall portion 16 extending in the vehicle width direction and a second support plane portion 17 connected to the side wall portion 16. When viewed in cross section, the side wall portion 16 and the second support plane portion 17 have a U-shaped shape in which the ends of the vehicle outer sides of a pair of side wall portions 16 extending in the vehicle width direction are connected to each other by the second support plane portion 17. A rotation support hole 15 is provided through the second support plane portion 17. Figure 1 to Figure 3 , Figure 5 , Figure 6B As shown in FIGS. 1 and 2 , the base 10 has a first support plane portion 18 located around the rotation support hole 14 (the rotation support hole 14 is provided through the first support plane portion 18 ).

[0050] Thus, the base 10 has: a first support plane portion 18 (rotation support hole 14), on which one end side of the first arm 50 is rotatably supported; and a second support plane portion 17 (rotation support hole 15), on which one end side of the second arm 60 is rotatably supported. Moreover, the first arm 50, on which one end side is supported by the first support plane portion 18 (rotation support hole 14), and the second arm 60, on which one end side is supported by the second support plane portion 17 (rotation support hole 15), are offset in the vehicle width direction. Figure 6B As shown, the first support plane portion 18 and the second support plane portion 17 are slightly offset in the vehicle width direction. The first arm 50 and the second arm 60 are respectively bent gently in the vehicle width direction from the rotation support portion on one end side to the rotation support portion on the other end side, but even considering the bending degree, the first arm 50 and the second arm 60 are offset in the vehicle width direction from the rotation support portion on one end side to the rotation support portion on the other end side. As a result, it is possible to prevent the first arm 50 and the second arm 60 from interfering with each other during rotation (rotation), and the first arm 50 and the second arm 60 from interfering with other structural elements (including being sandwiched between the two arms), and to achieve smooth movement with improved layout efficiency.

[0051] When the plate surface position where the four insertion holes 11 are formed is set as the reference surface of the base 10, the first support plane portion 18 is formed in a dome-shaped shape protruding from the reference surface in the vehicle width direction, thereby ensuring the rigidity of the portion (near the rotation axis R1) that supports one end of the first arm 50. In addition, in order to also ensure the rigidity of the portion (near the rotation axis R3) that supports one end of the second arm 60, since the support position of the second arm 60 is not too far from the support position of the first arm 50, a shape extending in the radial direction from the above-mentioned dome-shaped portion (the portion with a gentle slope of the first support plane portion 18) is formed. Figure 5), a pair of side wall portions 16 and a second support plane portion 17 are formed. Therefore, it is easy to manufacture the base 10 by stamping, and it is also easy to manage the offset amount in the vehicle width direction of the two support plane portions 17 and 18. In this way, when viewed from the side in Figure 5 , a pair of side wall portions 16 extend toward the outer diameter direction of the first support plane portion 18.

[0052] In addition, one end side of the second arm 60 is supported by the second support plane portion 17 (rotating support hole 15) of the connecting portion having a U-shaped cross section so as to be rotatable, the position of the rotating support shaft (rotating support pin P1) in the vehicle width direction can be appropriately set (adjusted), and the rigidity of the connecting portion between the second arm 60 and the base 10 is maintained high. In the above-mentioned Patent Document 1, the main arm and the sub-arm are supported in a state separated in the vehicle width direction, so the rigidity of the arm member becomes insufficient, which may also lead to deterioration and deviation of the assembly accuracy.

[0053] One end side of the first arm 50 and one end side of the second arm 60 of the window regulator 1 according to the present embodiment are rotatably supported by the base 10, and the other end side of the first arm 50 and the other end side of the second arm 60 are rotatably supported by the bracket 30 (bell crank 40) (it is a four-link window regulator with four different rotating support positions). And, as Figure 1-Figure 3 shown, the rotation center axis of one end side of the first arm 50 and the rotation center axis of one end side of the second arm 60 are offset in the driving direction (vertical direction) of the bracket 30 that supports the window glass W, and the rotation center axis of the other end side of the first arm 50 and the rotation center axis of the other end side of the second arm 60 are offset in the driving direction (vertical direction) of the bracket 30 that supports the window glass W.

[0054] In Figure 3 , if focusing on the positional relationship between the rotation axis R1 and the rotation axis R3, the rotation axis R1 and the rotation axis R3 are largely offset in the vertical direction, (almost) not offset in the front-rear direction, and offset in the vehicle width direction to an extent that prevents interference between the first arm 50 and the second arm 60. Similarly, if focusing on the positional relationship between the rotation axis R2 and the rotation axis R4, the rotation axis R2 and the rotation axis R4 are largely offset in the vertical direction, (almost) not offset in the front-rear direction, and offset in the vehicle width direction to an extent that prevents interference between the first arm 50 and the second arm 60. Moreover, as Figure 1 shown, the positional relationship between the rotation axis R1 and the rotation axis R3, and the positional relationship between the rotation axis R2 and the rotation axis R4 always maintain the same state regardless of the rotation positions of the first arm 50 and the second arm 60 (the opening position of the window glass W). As a result, the first arm 50 and the second arm 60 do not overlap (cross) during rotation, and thus, it is possible to prevent local forces (forces that tend to deform the first arm and the second arm) from being applied to the first arm 50 and the second arm 60.

[0055] In the above-mentioned Patent Document 1, the rotation support parts on one end side of the main arm and the auxiliary arm are offset only in the front-rear direction of the vehicle (the positions in the up-down direction are the same), and the rotation support parts on the other end side of the main arm and the auxiliary arm are offset only in the front-rear direction of the vehicle (the positions in the up-down direction are the same). Moreover, when the main arm and the auxiliary arm rotate, the two overlap (cross), so that a local force (a force that deforms the main arm and the auxiliary arm) is applied to the main arm and the auxiliary arm. More specifically, the moment arm applied to the overlapping (crossed) main arm and auxiliary arm is infinite, and the load acting on the auxiliary arm in particular increases, which also leads to the enlargement of the auxiliary arm (it has to be enlarged).

[0056] The window glass W is fixed to the bracket 30 by two fastening members (not shown) respectively inserted into the two insertion holes 31. In addition, when the window glass W is to be rotated, the rotation axis is generated by Figure 3 The torque generated by the positional relationship of the rotation axis R1-rotation axis R4. In particular, in order to stop (impede) the rotation torque M starting from the rotation axis R2, a force P in the direction in which the second arm 60 is pulled is required to be generated by the bell crank 40, but when the distance between the long sides of the four-bar rotation fulcrum (four-bar regulator) is L, the force P is expressed by P=M / L. In the above-mentioned patent document 1, at the moment when the main arm and the auxiliary arm overlap (intersect), L=0, the force P is infinite, and as a result, a local force (a force intended to deform the main arm and the auxiliary arm) is applied to the main arm and the auxiliary arm. In this regard, in the window regulator 1 of the present embodiment, since the distance L between the long sides of the four-bar rotation fulcrum (four-bar regulator) is always constant, the force P can be maintained to a degree that can prevent the rotation of the window glass W, and the application of a local force (a force intended to deform the first arm and the second arm) to the first arm 50 and the second arm 60 can be prevented. Furthermore, stable driving of the window regulator 1 (window glass W) can also be achieved.

[0057] The bracket 30 includes a bell crank 40 that can slide in the extension direction (front-rear direction) of the slide rail 32 of the bracket 30. The other end side of the first arm 50 and the other end side of the second arm 60 are offset in the driving direction (up-down direction) of the bracket 30 supporting the window glass W, and are rotatably supported by the bell crank 40 (see FIG. Figure 3 By rotationally supporting the other end side of the first arm 50 and the other end side of the second arm 60 in an offset state via the bell crank 40, stable driving of the window regulator 1 (window glass W) can be achieved.

[0058] The bell crank 40 is a substantially L-shaped (substantially boomerang-shaped) member consisting of a first side portion 41 extending in the front-rear direction (the direction in which the slide rail 32 of the bracket 30 extends) and a second side portion 42 bent downward (in a direction intersecting the direction in which the slide rail 32 of the bracket 30 extends) from the rear end portion of the bracket 30. The other end side of the first arm 50 is rotatably supported at a connection portion ( Figure 3 The other end of the second arm 60 is rotatably supported on the second side portion 42 ( Figure 3 The angle formed by the first side 41 and the second side 42 of the bell crank 40 may be a right angle, an acute angle, or an obtuse angle, but in order to achieve the vertical offset of the rotation axis R2 and the rotation axis R4, it is preferably 80° or more and 100° or less. In particular, by setting the angle formed by the first side 41 and the second side 42 of the bell crank 40 to an acute angle (e.g., 80° or more and less than 90°), the input of the load to the first arm 50 and the second arm 60 can be reduced (the difference in input load is reduced) at the top dead center and its vicinity, and the bottom dead center and its vicinity of the window glass W.

[0059] In the window regulator 1 of the present embodiment, within the movable range of the first arm 50, the line segment connecting the rotation center of one end side and the rotation center of the other end side of the first arm 50 (the line segment connecting the rotation axis R1 and the rotation axis R2) does not overlap with the rotation center of one end side (rotation axis R3) and the rotation center of the other end side (rotation axis R4) of the second arm 60. Thus, damage to the window regulator 1 can be prevented within the movable range of the first arm 50, and stable driving of the window regulator 1 (window glass W) can be achieved.

[0060] In the window regulator 1 of the present embodiment, when the window glass W is at the bottom dead center, the amount of misalignment in the driving direction (vertical direction) between the rotation support portion (rotation axis R1) at one end side of the first arm 50 and the rotation support portion (rotation axis R3) at one end side of the second arm 60, and the amount of misalignment in the driving direction (vertical direction) between the rotation support portion (rotation axis R2) at the other end side of the first arm 50 and the rotation support portion (rotation axis R4) at the other end side of the second arm 60 are shorter than the distance between the rotation center (rotation axis R2) at the other end side of the first arm 50 and the lower surface of the vehicle door panel. Thus, even when the window glass W is at the bottom dead center, interference with the vehicle door panel can be prevented, and stable driving of the window regulator 1 (window glass W) can be achieved.

[0061] However, in the window regulator device of Patent Document 1, the lifting and lowering trajectory of the window glass is offset from the driving trajectory of the main arm and the auxiliary arm, thereby causing an unfavorable force to act on the window glass, thereby preventing smooth lifting and lowering. This problem is caused not only by the fact that the main arm and the auxiliary arm describe a straight track, but also by the fact that the window glass and the door frame describe a track with curvature, but also by the fact that the rotation center axes (rotation support axes) of the main arm and the auxiliary arm are oriented in the vehicle width direction, and a tensile force due to the deflection of the main arm and the auxiliary arm acts when the window glass is raised and lowered, or a compressive force is generated when the window glass is fully closed.

[0062] The window regulator 1 of the present embodiment solves the above-mentioned problem by making the window glass W and the driving trajectory of the arm member (the first arm 50, the second arm 60) close to each other, thereby suppressing the force acting on the window glass W and realizing smooth driving. For this purpose, when viewed from the up-down direction (the vehicle up-down direction), at least one of the rotation center axis on one end side and the rotation center axis on the other end side of the arm member (the first arm 50, the second arm 60) is tilted in the front-rear direction (the vehicle front-rear direction) relative to the vehicle width direction. More specifically, when viewed from the up-down direction (the vehicle up-down direction), at least one of the rotation center axis (rotation axis R1) on one end side of the first arm 50, the rotation center axis (rotation axis R2) on the other end side of the first arm 50, the rotation center axis (rotation axis R3) on one end side of the second arm 60, and the rotation center axis (rotation axis R4) on the other end side of the second arm 60 is tilted in the front-rear direction (the vehicle front-rear direction) relative to the vehicle width direction.

[0063] When viewed from the top-bottom direction, at least one of the rotation center axis at one end side and the rotation center axis at the other end side of the arm member (first arm 50, second arm 60) is inclined toward the front-rear direction (front or rear) of the vehicle as it moves toward the vehicle outside. More specifically, when viewed from the top-bottom direction, at least one of the rotation center axis (rotation axis R1) at one end side of the first arm 50, the rotation center axis (rotation axis R2) at the other end side of the first arm 50, the rotation center axis (rotation axis R3) at one end side of the second arm 60, and the rotation center axis (rotation axis R4) at the other end side of the second arm 60 is inclined toward the front-rear direction (front or rear) of the vehicle as it moves toward the vehicle outside.

[0064] like Fig.10As shown, one end side of the first arm 50 is supported to be rotatable relative to the base 10 at the rotation center axis (rotation axis R1), and when viewed from the top and bottom direction, the rotation center axis (rotation axis R1) is inclined toward the front-rear direction (front) of the vehicle as it moves toward the outside of the vehicle. In addition, one end side of the second arm 60 is supported to be rotatable relative to the base 10 at the rotation center axis (rotation axis R3), and when viewed from the top and bottom direction, the rotation center axis (rotation axis R3) is inclined toward the front-rear direction (front) of the vehicle as it moves toward the outside of the vehicle. Fig.10 In FIG. 1 , the rotation axes R1 and R3 overlap in the vertical direction, so they are depicted by a single axis.

[0065] like Fig.10 As shown, the other end side of the first arm 50 is supported so as to be rotatable relative to the bracket 30 (bell crank 40) on the rotation center axis (rotation axis R2), and when viewed from the top and bottom direction, the rotation center axis (rotation axis R2) is inclined in the vehicle front-rear direction (front) as it moves toward the outside of the vehicle. In addition, the other end side of the second arm 60 is supported so as to be rotatable relative to the bracket 30 (bell crank 40) on the rotation center axis (rotation axis R4), and when viewed from the top and bottom direction, the rotation center axis (rotation axis R4) is inclined in the vehicle front-rear direction (front) as it moves toward the outside of the vehicle. Fig.10 In FIG. 1 , the rotation axes R2 and R4 overlap in the vertical direction, so they are depicted by a single axis.

[0066] In a case where the rotation center axis at one end side of the arm component (the first arm 50, the second arm 60) is located rearward in the front-rear direction of the vehicle relative to the rotation center axis at the other end side, when viewed from the upper and lower directions of the vehicle, at least one of the rotation center axis at one end side and the rotation center axis at the other end side of the arm component (the first arm 50, the second arm 60) is inclined toward the front of the front-rear direction of the vehicle as it moves toward the outside of the vehicle. In a case where the rotation center axis at one end side of the arm component (the first arm 50, the second arm 60) is located frontward in the front-rear direction of the vehicle relative to the rotation center axis at the other end side, when viewed from the upper and lower directions of the vehicle, at least one of the rotation center axis at one end side and the rotation center axis at the other end side of the arm component (the first arm 50, the second arm 60) is inclined toward the rear of the front-rear direction of the vehicle as it moves toward the outside of the vehicle.

[0067] Although it is the inclination of the rotation axis R1-rotation axis R4, if the curvature of the general window glass and the door frame is assumed, when it is rotated about 10° forward or backward based on the vehicle width direction, it can perform an action consistent with (following) the curvature of the window glass and the door frame. Among them, regarding the inclination of the rotation axis R1-rotation axis R4, various design changes can be made according to the curvature of the window glass and the door frame (for example, even if the inclination angle that does not meet the most preferred inclination angle is set, a certain effect can be obtained). In addition, the linear regulator has the advantage of easily following the lifting and lowering trajectory of the window glass, but the window regulator 1 of this embodiment adopts a four-link rotation fulcrum (four-link regulator) and has the advantage of being able to follow the lifting and lowering trajectory of the window glass at the same level as the linear regulator.

[0068] By inclining the above rotation center axis (rotation axis), the force acting on the window glass W in the vehicle width direction is reduced, and the tensile force based on the first arm 50 and the second arm 60 acts when the window glass W is raised or lowered, or the squeezing force when the window glass W is completely closed is prevented, and the window glass W can be smoothly raised or lowered (driven). In addition, the rotation of the window glass W can be prevented by the four-link rotation fulcrum (four-link adjuster).

[0069] like Fig.10 As shown, the rotation support part (rotation center axis or its vicinity) at one end side and the rotation support part (rotation center axis or its vicinity) at the other end side of the first arm 50 have a relatively large inclination with respect to the front-rear direction of the vehicle, and the inclination with respect to the front-rear direction of the vehicle is relatively small at the intermediate side between the one end side and the other end side. For example, the first arm 50 may be inclined relatively sharply toward the outside of the vehicle near the rotation support part at one end side from the front to the rear, relatively gently toward the inside of the vehicle or the outside of the vehicle at the intermediate side between the one end side and the other end side, and relatively sharply toward the outside of the vehicle near the rotation support part at the other end side. By optimally setting the inclination of the first arm 50 according to the front-rear position, the dimension of the first arm 50 in the vehicle width direction can be reduced, and the window regulator 1 can be arranged with high layout efficiency even in a narrow space in the door panel. The intermediate side may extend in the front-rear direction, or may not be inclined toward the inside of the vehicle or the outside of the vehicle. The relatively small inclination of the intermediate side also includes the case where there is no inclination.

[0070] Similarly, the rotation support part (rotation center axis or its vicinity) at one end side and the rotation support part (rotation center axis or its vicinity) at the other end side of the second arm 60 may be relatively tilted to the front-rear direction of the vehicle, and the middle side between the one end side and the other end side may be relatively tilted to the front-rear direction of the vehicle. For example, the second arm 60 may be tilted relatively sharply toward the outside of the vehicle near the rotation support part at one end side from the front to the rear, relatively gently toward the inside of the vehicle or the outside of the vehicle at the middle side between the one end side and the other end side, and relatively sharply toward the outside of the vehicle near the rotation support part at the other end side. By optimally setting the tilt degree of the second arm 60 according to the front-rear position, the dimension of the second arm 60 in the vehicle width direction can be reduced, and the window regulator 1 can be arranged with high layout efficiency even in a narrow space in the door panel. The middle side may extend in the front-rear direction, or may not be tilted toward the inside of the vehicle or the outside of the vehicle. The relatively small tilt degree of the middle side also includes the case where there is no tilt.

[0071] like Figure 4A As shown, when the rotation axis R2 on the other end side of the first arm 50 is tilted, the base of the sliding shoe 45X does not tilt, and smooth sliding in the forward and backward directions relative to the sliding rail 32 is ensured, and only the displacement support portion having the engaging pin tilts, and the displacement support portion is supported on the base of the sliding shoe 45X with play. In this way, by constituting the sliding shoe with the base and the displacement support portion having the engaging pin, and the displacement support portion being supported on the base with play, the rotation axis can be flexibly tilted while absorbing the deviation of the assembly.

[0072] The window regulator 1 of this embodiment includes a driven gear (gear member) 53 having a tooth portion (gear mechanism) 53X for transmitting the rotational driving force of the motor unit (drive member) 20 to the arm members (first arm 50, second arm 60). Fig.10 As shown, when viewed from the upper and lower directions of the vehicle, the tooth portion 53X of the driven gear 53 is inclined in the front-rear direction of the vehicle relative to the vehicle width direction. That is, the inclination amount of the tooth portion 53X of the driven gear 53 is consistent with the inclination amount near the rotation support portion (rotation center axis or its vicinity) on one end side of the first arm 50 and the second arm 60. By optimally setting the inclination amount of the tooth portion 53X of the driven gear 53, even when the rotation center axis (rotation axis) of the arm member (first arm 50, second arm 60) is tilted, the meshing between the center axis (e.g., sawtooth axis) of the built-in gear mechanism of the motor unit 20 and the tooth portion 53X of the driven gear 53 can be well maintained.

[0073] On the other hand, when the base 10 is fastened (fastened together) to the door panel by the fastening member (not shown) inserted through the four insertion holes 11, the axial direction of the fastening member (insertion hole 11) is oriented in the vehicle width direction and is not parallel to the rotation center axis of one end side or the rotation center axis of the other end side of the arm member (first arm 50, second arm 60) (both are inclined). Thus, the assembly of the window regulator 1 can be simplified.

[0074] Here, the first direction and the second direction are defined as directions opposite to each other (for example, one direction and the other direction in the front-rear direction of the vehicle). In this case, when the first arm 50 and the second arm 60 extend in the first direction and the window glass W rotates in the first direction with the other end side of the first arm 50 as the center, the second arm 60 is arranged on the upper side of the first arm 50. On the other hand, when the first arm 50 and the second arm 60 extend in the first direction and the window glass W rotates in the second direction with the other end side of the first arm 50 as the center, the second arm 60 is arranged on the lower side of the first arm 50. As a result, the second arm 60 is resistant to tension and has a higher load resistance than compression resistance, and the second arm 60 can be miniaturized.

[0075] More specifically, assuming Figure 3 In the configuration state, the first arm 50 and the second arm 60 extend from the front of the vehicle to the rear of the vehicle. Furthermore, when the window glass W rotates toward the rear of the vehicle with the other end side of the first arm 50 as the center, the second arm 60 is configured on the upper side of the first arm 50. On the other hand, when the window glass W rotates toward the front of the vehicle with the other end side of the first arm 50 as the center, the second arm 60 is configured on the lower side of the first arm 50.

[0076] In addition, assuming a reversal Figure 3 Configuration status (to make Figure 3 In the case of the configuration of the vehicle front and the vehicle rear opposite), the first arm 50 and the second arm 60 extend from the vehicle rear to the vehicle front. Furthermore, when the window glass W rotates toward the vehicle front with the other end side of the first arm 50 as the center, the second arm 60 is arranged on the upper side of the first arm 50. On the other hand, when the window glass W rotates toward the vehicle rear with the other end side of the first arm 50 as the center, the second arm 60 is arranged on the lower side of the first arm 50.

[0077] However, in the window regulator device of the above-mentioned Patent Document 1, two slides are provided on the connecting rod for freely moving in the longitudinal direction in the guide rail. However, since the connection portion between the main arm and the connecting rod is provided at a position closer to the front side of the vehicle than the two slides, if the distance between the two slides is increased to prevent looseness, when the window glass is tilted, the distance from the main arm as the rotation center becomes larger, and load is applied to the two slides when the window glass rotates. As a result, the torque becomes larger due to the distance between the rotation center and the portion to which the load is applied, and the connecting rod may be deformed.

[0078] Below, the above-mentioned problems are understood as important technical problems. Figure 11 to Figure 1 7, another embodiment of the window regulator is described, in which the load and even the torque applied to the two sliding members in the bracket are reduced, thereby preventing the bracket from deforming. In the description of another embodiment, Figures 1 to 10 Common parts are denoted by common symbols and repeated description is omitted.

[0079] Fig.11 , Fig.12 , Fig.13 1 is a diagram showing the fully open position, the intermediate position, and the fully closed position of a window regulator according to another embodiment, as viewed from the vehicle width direction. In another embodiment of the window regulator, the structure of the base 10, the motor unit 20, the bracket 30, and the second arm 60 are similar to Figures 1 to 10 In another embodiment of the window regulator, instead of Figures 1 to 10 The bell crank 40 and the first arm 50 of the embodiment are replaced with a bell crank 70 and a first arm 80. In a window regulator of another embodiment, the bell crank 70 may constitute a part of the bracket 30 (the bell crank 70 may be included in the bracket 30).

[0080] Fig.14A , Fig. 14B : is an enlarged view showing the single body structure of the bell crank 70. The bell crank 70 has sliding support holes 71 and 72 that are separated in the front-rear direction. The sliding support hole 71 is located at the front, and the sliding support hole 72 is located at the rear. The bell crank 70 has rotation support holes 73 and 74 that are located between the sliding support holes 71 and 72 in the front-rear direction and separated in the up-down direction so as to sandwich the sliding support holes 71 and 72. The rotation support hole 73 is located at the top, and the rotation support hole 74 is located at the bottom. The bell crank 70 is a quadrilateral (rhombus) with the sliding support holes 71 and 72 and the rotation support holes 73 and 74 as vertices.

[0081] Two sliding shoes (sliding shoe components) 71X and 72X that are separated in the front-to-back direction are supported by the sliding rail 32 of the bracket 30 so as to slide freely in the front-to-back direction. The interlocking pin of the sliding shoe 71X is interlocked with the sliding support hole 71, and the interlocking pin of the sliding shoe 72X is interlocked with the sliding support hole 72. In this way, the bell crank 70 is supported by the sliding rail 32 of the bracket 30 so as to slide freely in the front-to-back direction (extension direction). The interlocking pin uses a common component in the sliding shoes 71X and 72X, thereby reducing costs. The sliding shoes 71X and 72X themselves also use a common component, thereby reducing costs. Of course, it is not necessary to use a common component.

[0082] One end side of the first arm 80 is rotatably supported by the base 10, and the other end side is rotatably supported by the bell crank 70 (bracket 30). Fig.15 16, etc., a rotation support hole 81 is formed at a position slightly closer to the middle than one end side of the first arm 80, and a rotation support hole 82 is formed at the other end side of the first arm 80. In addition, a driven gear 83 is provided at one end side of the first arm 80 (the side closer to the top end than the rotation support hole 81), and the driven gear 83 is a gear member ( Figure 11 to Figure 13 ). The rotation support hole 14 of the base 10 and the rotation support hole 81 of the first arm 80 are coaxially positioned and a rotation support pin (not shown in the figure) is inserted for support, thereby one end side of the first arm 80 is supported on the base 10 in a rotatable manner. In this supported state, the driven gear 83 meshes with the central axis (e.g., a sawtooth shaft) of the built-in gear mechanism of the motor unit 20 and transmits the rotational driving force of the motor unit 20 to the first arm 80. Furthermore, the rotation support hole 82 of the first arm 80 and the rotation support hole 73 of the bell crank 70 are coaxially positioned and a rotation support pin (not shown in the figure) is inserted for support, thereby the other end side of the first arm 80 is supported on the bell crank 70 (bracket 30) in a rotatable manner.

[0083] like Fig.15 As shown in Fig. 16, when viewed along the cross section, the first arm 80 has a central rib 84 extending from the center in the width direction to the length direction and peripheral flanges 85 extending from both ends in the width direction to the length direction. The central rib 84 and the peripheral flanges 85 can improve the strength (rigidity) of the first arm 80.

[0084] Here, as described above, in the window regulator device of Patent Document 1, since the connection portion between the main arm and the link is provided at a position closer to the front side of the vehicle than the two slides, if the distance between the two slides is increased to prevent looseness, when the window glass is tilted, the distance from the main arm, which is the rotation center, becomes longer, and load is applied to the two slides when the window glass rotates. As a result, the torque becomes larger due to the distance between the rotation center and the load application portion, and the link may be deformed.

[0085] In order to solve the above-mentioned problems, the window regulator 1 of the present embodiment includes a structure for reducing the load or torque applied to the two sliding shoes (shoe members) 71X and 72X in the bracket 30 (bell crank 70) to prevent deformation of the bracket 30 (bell crank 70).

[0086] More specifically, the bell crank 70 constituting the bracket 30 has two sliding shoes 71X and 72X that are separated in the front-rear direction of the vehicle, and the rotation center axis (rotation axis R2) of the other end side of the first arm 80 is located between the two sliding shoes 71X and 72X in the front-rear direction of the vehicle. Similarly, the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is located between the two sliding shoes 71X and 72X in the front-rear direction of the vehicle. Figure 11 to Figure 13 In the figure, when two straight lines extending in the up and down direction (vertical) of the vehicle through the center axes of the two sliding shoes 71X and 72X are specified, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are configured so as to fall between the two straight lines.

[0087] In this way, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are located between the two sliding shoes 71X and 72X in the vehicle front-rear direction, so that the distance between the two sliding shoes 71X and 72X can be ensured, and the distance between the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 and the two sliding shoes 71X and 72X is set short. As a result, the load and even the torque applied to the two sliding shoes 71X and 72X in the bracket 30 (bell crank 70) are reduced, and deformation of the bracket 30 (bell crank 70) can be prevented.

[0088] Furthermore, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are offset toward the upper side of the vehicle or the lower side of the vehicle compared to the two sliding shoes 71X and 72X in the vertical direction of the vehicle. The rotation center axis (rotation axis R2) of the other end side of the first arm 80 is offset toward the upper side of the vehicle compared to the two sliding shoes 71X and 72X in the vertical direction of the vehicle, and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is offset toward the lower side of the vehicle compared to the two sliding shoes 71X and 72X in the vertical direction of the vehicle. Figure 11 to Figure 13 In the embodiment, when a straight line extending horizontally through the center axes of the two sliding shoes 71X and 72X is defined, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 is located on the upper side of the straight line and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is located on the lower side of the straight line. By configuring in this way, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are symmetrically arranged with respect to the two sliding shoes 71X and 72X, and as a result, the layout efficiency can be improved.

[0089] When the window regulator 1 is mounted on an automobile (vehicle), other vehicle components (such as a door panel, a bracket, etc.) are often located on the side of the bracket 30 that slidably supports the two slide shoes 71X and 72X. In this regard, as in this other embodiment, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are offset to the upper side or the lower side of the vehicle in the vehicle vertical direction relative to the two slide shoes 71X and 72X. Therefore, even after the two slide shoes 71X and 72X are mounted on the slide rails 32 of the bracket 30, the other vehicle components described above do not hinder the mounting of the other end sides of the first arm 80 and the second arm 60 on the bell crank 70 (bracket 30), resulting in an increase in the degree of freedom of assembly.

[0090] Even with the above-mentioned points, the load or torque applied to the bracket 30 and the bell crank 70 via the two sliding shoes 71X and 72X cannot be completely zero (even so, the problem of bracket deformation will not occur). Therefore, in this embodiment, in order to more reliably ensure the rigidity of the bell crank 70 and realize the miniaturization of the bell crank 70, ribs are formed on the bell crank 70.

[0091] Mainly as Fig.14A , Fig. 14BAs shown in FIGS. 1 and 2 , the bell crank 70 has ribs between the rotation center axis (rotation axis R2) on the other end side of the first arm 80, the rotation center axis (rotation axis R4) on the other end side of the second arm 60, and the two sliding shoes 71X and 72X. The ribs include a rib connecting the rotation center axis (rotation axis R2) on the other end side of the first arm 80 and the two sliding shoes 71X and 72X, a rib connecting the rotation center axis (rotation axis R4) on the other end side of the second arm 60 and the two sliding shoes 71X and 72X, and a rib connecting the rotation center axis (rotation axis R2) on the other end side of the first arm 80 and the rotation center axis (rotation axis R4) on the other end side of the second arm 60.

[0092] In the figure, the rib connecting the rotation center axis (rotation axis R2) at the other end side of the first arm 80 and the sliding shoe 71X is marked with the symbol 75, the rib connecting the rotation center axis (rotation axis R2) at the other end side of the first arm 80 and the sliding shoe 72X is marked with the symbol 76, the rib connecting the rotation center axis (rotation axis R4) at the other end side of the second arm 60 and the sliding shoe 71X is marked with the symbol 77, the rib connecting the rotation center axis (rotation axis R4) at the other end side of the second arm 60 and the sliding shoe 72X is marked with the symbol 78, and the rib connecting the rotation center axis (rotation axis R2) at the other end side of the first arm 80 and the rotation center axis (rotation axis R4) at the other end side of the second arm 60 is marked with the symbol 79.

[0093] The number, shape, type, etc. of the ribs 75-79 illustrated here can be increased with various design changes. For example, ribs (not shown) connecting the two sliding shoes 71X and 72X may be added in a manner that intersects with the rib 79 connecting the rotation center axis (rotation axis R2) on the other end side of the first arm 80 and the rotation center axis (rotation axis R4) on the other end side of the second arm 60.

[0094] Fig.17A , Fig. 17B , Fig. 17C1 is a diagram showing another embodiment (modification) of the window regulator 1. In the above embodiment, in the front-rear direction of the vehicle, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are located between the two sliding shoes 71X and 72X. On the other hand, in the front-rear direction of the vehicle, only the rotation center axis (rotation axis R2) of the other end side of the first arm 50 is located between the two sliding shoes 71X and 72X, and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is not located between the two sliding shoes 71X and 72X. In addition, in the above embodiment, in the upper and lower directions of the vehicle, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are located at positions offset to the upper side or the lower side of the vehicle compared to the two sliding shoes 71X and 72X. Specifically, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 is offset to the upper side of the vehicle in the vehicle vertical direction relative to the two sliding shoes 71X and 72X, and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is offset to the lower side of the vehicle in the vehicle vertical direction relative to the two sliding shoes 71X and 72X. In contrast, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 may or may not be offset in the vehicle vertical direction relative to the two sliding shoes 71X and 72X, and the offset direction can be set with freedom.

[0095] exist Fig.17A In the embodiment, the bell crank 70 is formed into a rectangular shape having long sides in the front-rear direction of the vehicle and short sides in the up-down direction of the vehicle. In addition, the vertical height of the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are made the same as the two sliding shoes 71X and 72X, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 is located between the two sliding shoes 71X and 72X, and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is located behind the two sliding shoes 71X and 72X.

[0096] exist Fig. 17BIn the embodiment, the bell crank 70 is formed into a rectangular shape having long sides in the front-rear direction of the vehicle and short sides in the up-down direction of the vehicle. In addition, the vertical height of the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are made the same as the two sliding shoes 71X and 72X, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 is located between the two sliding shoes 71X and 72X, and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 and the rotation support axis of the sliding shoe 72X are located at the same position (the sliding axis and the rotation axis are common and fastened at the same time).

[0097] exist Fig. 17C In the embodiment, the bell crank 70 is formed into a rectangular shape having long sides in the front-rear direction of the vehicle and short sides in the up-down direction of the vehicle. In addition, the rotation center axis (rotation axis R2) of the other end side of the first arm 80 and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 are staggered toward the upper side of the vehicle compared to the two sliding shoes 71X and 72X, and the rotation center axis (rotation axis R2) of the other end side of the first arm 80 is located between the two sliding shoes 71X and 72X, and the rotation center axis (rotation axis R4) of the other end side of the second arm 60 is located behind the two sliding shoes 71X and 72X.

[0098] The invention of the present disclosure is described in detail above, but it is obvious to those skilled in the art that the invention of the present disclosure is not limited to the embodiments described in the present disclosure. The invention of the present disclosure can be implemented as a modification and variation without departing from the gist and scope of the invention determined based on the description of the scope of protection claimed in the present invention. Therefore, the description of the present invention is for the purpose of illustrative description and does not have any limiting meaning on the invention of the present disclosure.

[0099] In the above-mentioned embodiment, the electric window type window regulator 1 is described by way of example in which the motor unit 20 drives the first arm 50 and the second arm 60 to rotate. However, the present invention can also be applied to a manual type (manual type) window regulator that transmits a driving force for manual rotation (manual rotation) to the first arm and the second arm. That is, the specific form of the driving component that drives the first arm and the second arm (arm component) to rotate has a degree of freedom, and various design changes can be made.

[0100] In the above-described embodiment, the case where the other ends of the first arm 50 and the second arm 60 are rotatably supported by the bell crank (shoe member) 40 is slidably supported by the bracket 30 is exemplified. However, a mode in which the other ends of the first arm and the second arm are rotatably supported by a part of the bracket or other supporting member of the bracket may be adopted.

[0101] In the above-mentioned embodiment, the other end side of the first arm 50 is rotatably supported at the connection portion between the first side portion 41 and the second side portion 42, and the other end side of the second arm 60 is rotatably supported at the second side portion 42, whereby the rotation support portions at the other end sides of the first arm 50 and the second arm 60 are offset from each other in the vertical direction and (almost) not offset in the front-rear direction. However, it is also possible that the rotation support portions at the other end sides of the first arm 50 and the second arm 60 are offset from each other in both the vertical direction and the front-rear direction by supporting the other end side of the first arm 50 at the first side portion 41 in a rotatable manner. However, in this case, it is also preferable that the offset amount in the vertical direction is larger than the offset amount in the front-rear direction.

[0102] In the above-described embodiment, the case where one end portion of the first arm 50 and the second arm 60 is rotatably supported on the base 10 is exemplified. However, one end portion of the first arm 50 and the second arm 60 may be rotatably supported on a vehicle component other than the base 10, for example, a vehicle component other than the window regulator 1 in an assembled (intermediate assembly) state.

[0103] This application is based on Japanese Patent Application No. 2022-139936 filed on September 2, 2022, Japanese Patent Application No. 2022-139937 filed on September 2, 2022, and Japanese Patent Application No. 2022-168910 filed on October 21, 2022. The contents thereof are incorporated herein in their entirety.

[0104] Explanation of symbols

[0105] 1 window regulator, 10 base (vehicle component constituting a floor panel and a door), 11 insertion hole, 12 fitting hole, 13 insertion hole, 13X fastening component, 14 rotation support hole, 15 rotation support hole, 16 side wall portion, 17 second support plane portion, 18 first support plane portion, 20 motor unit (driving component), 30 bracket (lifting arm bracket), 31 insertion hole, 32 slide rail, 40 bell crank (sliding shoe component), 41 first side portion, 42 second side portion, 43 through hole, 43X sliding shoe, 44 through hole (rotation support hole), 45 through hole (rotation support hole), 45X sliding shoe, 50 first arm (main arm, lifting arm, arm component), 51 rotation support hole, 52 rotation support hole, 53 driven gear (gear component), 53X tooth portion (gear machine structure), 60 second arm (auxiliary arm, EQ rod, arm component), 61 narrow width portion, 62 wide width portion, 63 rotation support hole, 64 rotation support hole, 70 bell crank (bracket), 71 sliding support hole, 71X sliding shoe (sliding shoe component), 72 sliding support hole, 72X sliding shoe (sliding shoe component), 73 rotation support hole, 74 rotation support hole, 75 rib, 76 rib, 77 rib, 78 rib, 79 rib, 80 first arm (main arm, lifting arm, arm component), 81 rotation support hole, 82 rotation support hole, 83 driven gear (gear component), 83X tooth portion (gear mechanism), 84 central rib, 85 peripheral flange, P1 rotation support pin, P2 rotation support pin, P3 rotation support pin, R1 rotation shaft, R2 rotation shaft, R3 rotation shaft, R4 rotation shaft, W window glass.

Claims

1. A vehicle window regulator, characterized in that: have: a bracket supporting the window glass; a first arm having one end side rotatably supported by a vehicle component constituting the door and the other end side rotatably supported by the bracket; a second arm having one end side rotatably supported by the vehicle component and the other end side rotatably supported by the bracket; as well as a driving member that drives the bracket supporting the window glass by driving and rotating the first arm and the second arm, The rotation center axis of the one end side of the first arm and the rotation center axis of the one end side of the second arm are offset in the driving direction of the bracket supporting the window glass. The rotation center axis of the other end side of the first arm and the rotation center axis of the other end side of the second arm are offset from each other in a driving direction of the bracket supporting the window glass.

2. The vehicle window regulator according to claim 1, characterized in that: When viewed from the vehicle up-down direction, at least a portion of the first arm and the second arm overlap.

3. The vehicle window regulator according to claim 1 or 2, characterized in that: The bracket has a sliding shoe component, which can slide along the extending direction of the sliding track of the bracket. The other end side of the first arm and the other end side of the second arm are offset in the driving direction of the bracket supporting the window glass and are rotatably supported by the shoe member. The sliding shoe component has a first side portion and a second side portion, the first side portion extends along the extension direction of the bracket, and the two side portions are bent from the first side portion in a direction intersecting the extension direction of the bracket. The other end of the first arm is rotatably supported by the first side portion or a connecting portion between the first side portion and the second side portion. The other end side of the second arm is rotatably supported by the second side portion.

4. The vehicle window regulator according to claim 1 or 2, characterized in that: In the movable range of the first arm, a line segment connecting the rotation center at the one end side and the rotation center at the other end side of the first arm does not overlap with the rotation center at the one end side and the rotation center at the other end side of the second arm.

5. The vehicle window regulator according to claim 1 or 2, characterized in that: When the vehicle window glass is at the bottom dead point, the offset amount in the driving direction between the rotating support part on the one end side of the first arm and the rotating support part on the one end side of the second arm, and the offset amount in the driving direction between the rotating support part on the other end side of the first arm and the rotating support part on the other end side of the second arm are shorter than the distance between the rotation center of the other end side of the first arm and the lower surface of the vehicle door panel.

6. The vehicle window regulator according to claim 1 or 2, characterized in that: The width of the first arm is greater than the width of the second arm.

7. The vehicle window regulator according to claim 1 or 2, characterized in that: The one end side of the first arm and the one end side of the second arm are offset in a driving direction of the bracket supporting the window glass and a vehicle width direction, and are rotatably supported by the vehicle component.

8. The vehicle window regulator according to claim 1, characterized in that The vehicle component is a base mounted on one of an inner panel and an outer panel of a vehicle. The driving member drives the first arm to rotate relative to the base and the bracket, and drives the second arm to rotate relative to the base and the bracket, thereby driving the bracket supporting the window glass.

9. The vehicle window regulator according to claim 8, characterized in that The base is constructed from a single component.

10. The vehicle window regulator according to claim 8 or 9, characterized in that: When viewed from the vehicle up-down direction, at least a portion of the first arm and the second arm overlap.

11. The vehicle window regulator according to claim 8 or 9, characterized in that: The base has a pair of side wall portions extending in the vehicle width direction and a second support plane portion connected to the pair of side wall portions. The one end side of the second arm is rotatably supported by the second supporting plane portion of the base.

12. The vehicle window regulator according to claim 11, characterized in that The base has a first support plane portion and a second support plane portion, the one end side of the first arm is rotatably supported on the first support plane portion, and the one end side of the second arm is rotatably supported on the second support plane portion, The first arm whose one end side is supported by the first support plane portion and the second arm whose one end side is supported by the second support plane portion are offset in the vehicle width direction.

13. The vehicle window regulator according to claim 8 or 9, characterized in that: The second arm includes a narrow width portion located at a middle side between the one end side and the other end side, and a wide width portion located at the one end side and rotatably supported by the base.

14. The vehicle window regulator according to claim 1, characterized in that The bracket has two sliding shoe components separated in the front-rear direction of the vehicle. The rotation center axis of the other end side of the first arm and the rotation center axis of the other end side of the second arm are located between the two shoe members in the vehicle front-rear direction.

15. The vehicle window regulator according to claim 14, characterized in that The bracket has a rib located between the rotation center axis on the other end side of the first arm, the rotation center axis on the other end side of the second arm, and the two shoe members.

16. The vehicle window regulator according to claim 14 or 15, characterized in that The rotation center axis of the other end side of the first arm and the rotation center axis of the other end side of the second arm are offset toward the vehicle upper side or the vehicle lower side than the two shoe members in the vehicle up-down direction.

17. The vehicle window regulator according to claim 1 or 2, characterized in that: When the first arm and the second arm extend in a first direction and the window glass rotates in the first direction around the other end of the first arm, the second arm is arranged above the first arm. When the first arm and the second arm extend in a first direction and the window glass rotates in a second direction around the other end of the first arm, the second arm is arranged below the first arm, and the first direction and the second direction are opposite directions to each other.

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