JP7363759B2 - window regulator - Google Patents

Description

The present invention relates to a window regulator.

Patent Document 1 describes a window regulator that opens and closes a window glass provided in a door of a vehicle. This window regulator includes a drive unit, a base plate, a sector gear, and an arm. The drive unit generates a driving force that moves the window glass up and down. A drive unit is attached to the base plate. The sector gear rotates relative to the base plate under the driving force of the drive unit. The arm has a long plate shape, with one longitudinal end connected to the window glass, the other longitudinal end connected to the base plate, and rotates together with the sector gear. The arm has a plate-shaped inner extending portion extending in the longitudinal direction at the center portion in the width direction, and a pair of outer bead portions formed at both ends in the width direction, and has a sector gear in the inner extending portion. A fixing part is formed to which the is fixed. The outer bead portion has an inclined portion at an end in the width direction of the arm that is inclined with respect to the inner extending portion, and the inclined portion extends toward the other end of the arm than the position in the longitudinal direction of the fixing portion. It is formed by

JP 2016-118053 Publication

However, in the window regulator of Patent Document 1, there is room for improvement in the strength or durability of the arm when rotating to open and close the window glass.

The present invention has been made based on the awareness of the above problems, and an object of the present invention is to provide a window regulator with improved arm strength or durability.

The window regulator of this embodiment has an arm for driving a window glass, and the arm has first and second beads spaced apart in the lateral direction of the arm and extending in the longitudinal direction of the arm, a third bead connecting the first and second beads on the distal end side in the longitudinal direction of the arm; and a seat surface located on the distal end side of the third bead in the longitudinal direction of the arm. , the third bead protrudes to one side in the thickness direction of the arm, the seat surface protrudes to the other side in the thickness direction of the arm, and the third bead and the seat surface It is characterized by being connected so as to straddle the thickness direction .

The seat surface is for installing a sliding member connecting member, and may protrude toward the outside of the vehicle, which is the side of the sliding member driven by the sliding member connecting member, and the third bead may protrude toward the inside of the vehicle.

At least one of the first and second beads may extend in the longitudinal direction of the arm to another component associated with the arm.

At least one of the first and second beads may extend in the longitudinal direction of the arm to a position in front of other components related to the arm.

The arm may include a flange portion on an outer periphery of the arm that rises in the thickness direction of the arm, and the flange portion may extend in the longitudinal direction of the arm to other components related to the arm.

The flange portion connects first and second portions that are spaced apart from each other in the lateral direction of the arm and extend in the longitudinal direction of the arm, and the first and second portions on the distal end side in the longitudinal direction of the arm. and a third portion.

The arm may include a matching portion extending further toward the distal end from the distal end in the longitudinal direction of the arm.

According to the present invention, it is possible to provide a window regulator with improved arm strength or durability.

It is a front view showing a window regulator of this embodiment. It is a back view showing the window regulator of this embodiment. It is a front view showing each drive position of the window regulator of this embodiment. 4 is an enlarged view of section IV in FIG. 3. FIG. 4 is an enlarged view of section V in FIG. 3. FIG. 4 is an enlarged view of the VI section of FIG. 3. FIG. It is a perspective view showing a lift arm of a 1st aspect. It is a top view which shows the lift arm of a 1st aspect. 9 is a sectional view taken along line AA in FIG. 8. FIG. 9 is a sectional view taken along line BB in FIG. 8. FIG. 9 is a sectional view taken along line CC in FIG. 8. FIG. 9 is a sectional view taken along line DD in FIG. 8. FIG. 9 is a sectional view taken along line EE in FIG. 8. FIG. 9 is a sectional view taken along line FF in FIG. 8. FIG. It is a perspective view which shows the lift arm of a 2nd aspect. It is a top view which shows the lift arm of a 2nd aspect. 17 is a sectional view taken along line GG in FIG. 16. FIG.

<Definition of terms>
The terms "longitudinal direction" and "lateral direction" in this specification are not used in a strict sense, but mean general directions that are not limited to the longitudinal direction and transverse direction of the orthogonal coordinate system.

<Overall structure of window regulator 1>
The overall configuration of the window regulator 1 of this embodiment will be described with reference to FIGS. 1 to 3. 1 is a front view showing the window regulator 1, FIG. 2 is a rear view showing the window regulator 1, and FIG. 3 is a front view showing each drive position of the window regulator 1.

The window regulator 1 includes a lift arm (arm) 10, an equalizer arm (other components) 20, a lift arm bracket (guide rail, sliding member) 30, an equalizer arm bracket 40, and a drive unit 50. have.

The lift arm 10 is composed of a long plate-like member extending in the longitudinal direction.

The tip side (one end side) of the lift arm 10 is connected to a lift arm bracket 30 to which a window glass (not shown) is fixed, and supports the lift arm bracket 30. More specifically, a slider (sliding member, shoe) 12 is attached to the tip side of the lift arm 10 via a roller pin (slider connecting member, sliding member connecting member) 11, and the slider 12 is connected to the lift arm bracket. 30 and is accommodated in and guided by a guide (sliding portion, sliding groove) 31.

The base end side (the other end side) of the lift arm 10 is rotatably (rotatably, swingably) supported by a drive unit 50. More specifically, the drive unit 50 includes a motor 51 and a sector gear 52 that is driven to rotate (rotate, swing) by the motor 51. The base end side of the lift arm 10 is configured to rotate together with the sector gear 52 as the drive unit 50 is driven (rotation of the sector gear 52 by the motor 51).

The equalizer arm 20 has a first arm 21 and a second arm 22. The first arm 21 and the second arm 22 are joined at a through hole 13 (FIGS. 7, 8, and 13 to 17, which will be described later) in the center (intermediate portion) of the lift arm 10 in the longitudinal direction. The lift arm 10 and the equalizer arm 20 are pivotally connected in an X-shape by joining the proximal end portions (root portions) of the first arm 21 and the second arm 22 with their respective surfaces in close contact with each other. Note that the first arm 21 and the second arm 22 can be joined by any means such as caulking or welding.

The tip of the first arm 21 of the equalizer arm 20 is connected to an equalizer arm bracket 40. More specifically, a slider (shoe) 21S is attached to the tip of the first arm 21 of the equalizer arm 20, and the slider 21S is accommodated and guided by the guide 41 of the equalizer arm bracket 40.

The tip of the second arm 22 of the equalizer arm 20 is connected to a lift arm bracket 30. More specifically, a slider (shoe) 22S is attached to the tip of the second arm 22 of the equalizer arm 20, and the slider 22S is accommodated and guided by the guide 31 of the lift arm bracket 30.

As described above, the window regulator 1 connects the base ends of the first arm 21 and the second arm 22 of the equalizer arm 20 to each other at the central portion of the lift arm 10 in the longitudinal direction. This is a so-called X-arm type window regulator, which is pivoted in an X-shape. In the window regulator 1, when the lift arm 10 is rotated by the drive unit 50, the lift arm bracket 30 connected (supported) to the lift arm 10 and, by extension, the window glass fixed to the lift arm bracket 30 are raised and lowered (driven). . In this way, the lift arm 10 is a component for raising and lowering (driving) the window glass. For example, FIG. 3 depicts each driving position of the window regulator 1, which corresponds to a fully open position, an intermediate opening position, and a fully closed position of the window glass.

<Detailed structure and effects of lift arm 10>
As a result of extensive research, the present inventor found that in an arm-type window regulator, there is room for improvement in the strength or durability of the lift arm when the lift arm is rotated to open and close the window glass. For example, if you open or close the window glass with paper or stickers affixed to its surface, the weather strip will wrap around the paper or stickers, applying torsional force to the tip of the lift arm, causing the lift arm to There is a possibility that the tip side becomes a weak part where torsional stress is concentrated. Furthermore, if the tip end edge of the lift arm to which torsional force is applied gets caught in the guide of the lift arm bracket, there is a risk that a force will act to buckle (compress) the lift arm.

The window regulator 1 of this embodiment succeeds in improving the strength or durability of the lift arm 10 against torsional stress and buckling force (compressive force) by devising and optimizing the shape of the lift arm 10. are doing. The detailed structure and effects of the lift arm 10 will be described below.

[Lift arm 10 of first aspect]
The lift arm 10 of the first embodiment will be described with reference to FIGS. 7 to 14. 7 and 8 are a perspective view and a plan view showing the lift arm 10 of the first embodiment. 9, FIG. 10, FIG. 11, FIG. 12, FIG. 13, and FIG. 14 are lines AA, BB, CC, DD, EE, and FF in FIG. It is a sectional view along a line.

As described above, the lift arm 10 is composed of a long plate-like member extending in the longitudinal direction, and has a tapered shape in which the length (width) in the transverse direction gradually decreases from the proximal end to the distal end. are doing. The base end side of the lift arm 10 corresponds to the side connected to the drive unit 50, and the distal end side of the lift arm 10 corresponds to the side connected to the lift arm bracket 30.

The lift arm 10 has a reference wall portion (bottom wall portion) 14 extending over a plane including the longitudinal direction and the lateral direction. The reference wall part 14 does not need to be completely planar, and includes a first bead 15A, a second bead 15B, a third bead 15C, and a flange part 18 (a first part 18A and a second part), which will be described later. Any component may be used as long as the portion 18B and the third portion 18C have a reference surface on which the third portion 18C is formed.

The lift arm 10 has a first bead 15A and a second bead 15B that are spaced apart from each other in the lateral direction of the lift arm 10 and extend in the longitudinal direction of the lift arm 10. The lift arm 10 has a third bead 15C that connects the first bead 15A and the second bead 15B on the tip side in the longitudinal direction of the lift arm 10.

The first bead 15A and the second bead 15B extend so as to gradually approach each other toward the distal end side in the longitudinal direction of the lift arm 10. At the point where the first bead 15A and the second bead 15B are closest, the tips of the first bead 15A and the second bead 15B are connected to each other by the third bead 15C. The third bead 15C has an R shape that connects the tips of the first bead 15A and the second bead 15B. The third bead 15C is formed from a portion where the tips of the first bead 15A and the second bead 15B begin to curve (a portion where the R shape begins), and with this portion as a boundary, the third bead 15A and A second bead 15B and a third bead 15C are defined.

Here, there is a degree of freedom in the form of the first bead 15A, the second bead 15B, and the third bead 15C, and various design changes are possible. For example, the first bead 15A and the second bead 15B may extend completely in parallel along the longitudinal direction of the lift arm 10. Further, the third bead 15C may connect the first bead 15A and the second bead 15B slightly before the tips (the first bead 15A and the second bead 15B connect to the third bead 15C). (It may protrude further toward the tip). The expression that the third bead 15C connects the first bead 15A and the second bead 15B on the "tip side" in the longitudinal direction of the lift arm 10 is meant to include this aspect. Furthermore, the third bead 15C does not have to have a constant (uniform) R shape, but may have an angular shape that connects the tips of the first bead 15A and the second bead 15B. However, it is preferable that the third bead 15C has an R shape, since good moldability can be obtained regardless of the material.

In this way, the third bead 15C is connected to the first bead 15A and the second bead 15B so as to wrap around the tip end side in the longitudinal direction of the lift arm 10, and the third bead 15C and the first bead By receiving a load at the connection between the bead 15A and the second bead 15B, it is possible to improve the strength or durability of the lift arm 10, especially the strength or durability against torsional stress and buckling force (compressive force). (prevents twisting and buckling (compression) from occurring).

Incidentally, in the conventional technology including Patent Document 1, the pair of beads extending in the longitudinal direction was interrupted (separated), so the vicinity of the tips of the pair of beads became a weak part where torsional stress was concentrated. , the strength or durability of the lift arm was insufficient.

At least one of the first bead 15A and the second bead 15B includes an equalizer arm 20 (first arm 21, second arm 22) as another component related to the lift arm 10 in the longitudinal direction of the lift arm 10. It extends to The lift arm 10 and the equalizer arm 20 rotate relative to each other about the pivot portion as the window regulator 1 is driven, thereby changing the degree to which they overlap with each other. Therefore, by extending the first bead 15A and the second bead 15B of the lift arm 10 to the equalizer arm 20, the strength or durability of the lift arm 10 can be improved regardless of the relative rotational position with respect to the equalizer arm 20. There is. More specifically, the first bead 15A and the second bead 15B extend to the pivot joint between the lift arm 10 and the equalizer arm 20 with zero overlap, or alternatively, the first bead 15A and the second bead 15B extend to the pivot joint between the lift arm 10 and the equalizer arm 20 with zero overlap. and extends to a position where it overlaps (overlaps) the equalizer arm 20. In particular, the strength or durability of the lift arm 10 can be improved by wrapping the first bead 15A and the second bead 15B with the equalizer arm 20 (entering the arc of the pivot joint). For example, the first bead 15A and the second bead 15B extend to the end edge (plate) of the equalizer arm 20 serving as a pivot portion so as to have no overlap or to overlap. In particular, when the amount of overlap between the lift arm 10 and the equalizer arm 20 is the smallest (the angle between them is approximately 90 degrees), the first bead 15A and the second bead 15B act as the equalizer as a pivot joint. It is preferable to extend to the end edge (plate) of the arm 20 with no amount of overlap or to overlap. Note that at least one of the first bead 15A and the second bead 15B is located in front of the equalizer arm 20 as another component related to the lift arm 10 in the longitudinal direction of the lift arm 10, specifically, in the lift arm 10. 10 and the equalizer arm 20 may extend to the front of the pivot point. Here, the front side of the pivot joint between the lift arm 10 and the equalizer arm 20 means, for example, a range of at least 50 mm from the edge (plate) of the equalizer arm 20 as the pivot joint. In other words, the position of the edge (plate) of the equalizer arm 20 as a pivot point is defined as 0 mm, the position 50 mm before there is defined, and the base from which the first bead 15A and the second bead 15B extend is defined. When the position of the end portion is defined as X mm, 0<X<50 or 0<X≦50 can be satisfied.

The lift arm 10 has a seat surface 16 located closer to the tip than the third bead 15C in the longitudinal direction of the lift arm 10. The seat surface 16 is used for installing a roller pin (slider connecting member, sliding member connecting member) 11, and the roller pin 11 is rotatably supported in an installation hole provided in the center of the seat surface 16. Furthermore, a slider 12 is attached via a roller pin 11, and the slider 12 is accommodated and guided by a guide 31 of a lift arm bracket 30. The seat surface 16 protrudes toward the outside of the vehicle, which is the side of the slider 12 driven by the roller pin 11. The seat surface 16 functions as a reference surface for the roller pin 11 and slider 12 as mounting members.

The third bead 15C and the seat surface 16 are connected to each other by a connecting portion 17. More specifically, the third bead 15C protrudes from one side (inside the vehicle) of the lift arm 10 in the thickness direction, and the seat surface 16 protrudes from the other side (outside the vehicle) of the lift arm 10 in the thickness direction. It stands out. The third bead 15C and the seat surface 16 are connected to each other by a connecting portion 17 so as to span the thickness direction of the lift arm 10. In the illustrated embodiment, the connecting portion 17 constitutes a connecting surface that connects the rising portion of the third bead 15C and the rising portion of the seat surface 16 in a planar manner. This plane connection surface constitutes an inclined connection surface that does not completely coincide with the thickness direction of the lift arm 10, but is inclined by a slight amount with respect to the thickness direction of the lift arm 10.

The third bead 15C and the seat surface 16 (roller pin 11) are provided in a positional relationship that does not overlap each other when viewed in the longitudinal direction of the lift arm 10 (the connecting portion 17 is separated from each other by

The strength or durability of the lift arm 10, especially torsional stress and buckling, can be improved by providing a seat surface 16 located on the distal side of the third bead 15C in the longitudinal direction of the lift arm 10 and receiving a load on the seat surface 16. The strength or durability against force (compression force) can be improved (the occurrence of twisting and buckling (compression) can be prevented).

Moreover, by connecting the third bead 15C and the seat surface 16 via the connecting portion 17 with the protruding directions of the third bead 15C and the seat surface 16 being opposite to each other, the lift arm 10 can be straddled in the thickness direction. By receiving the load at the connecting portion 17, the strength or durability of the lift arm 10, especially the strength or durability against torsional stress and buckling force (compressive force), can be further improved. compression).

Note that it is also possible to make the protrusion directions of the third bead 15C and the seat surface 16 in the same direction and omit the connecting portion 17 that connects the third bead 15C and the seat surface 16.

When the lift arm 10 is viewed from above, the outer periphery of the lift arm 10 is the outer periphery end (outer periphery edge) of the reference wall portion (bottom wall portion) 14, and the tip side where the seat surface 16 protrudes from the reference wall portion 14. , and the outer peripheral edge (outer peripheral edge) of the seat surface 16.

The lift arm 10 has a flange portion 18 that rises in the thickness direction of the lift arm 10 on the outer periphery of the lift arm 10 (the outer periphery end of the reference wall portion 14 and/or the seat surface 16). The flange portion 18 stands up on one side (inside the vehicle) in the thickness direction of the lift arm 10 (projects in the same direction as the first bead 15A, second bead 15B, and third bead 15C).

The flange portion 18 has a first portion 18A and a second portion 18B that are spaced apart from each other in the lateral direction of the lift arm 10 and extend in the longitudinal direction of the lift arm 10. The flange portion 18 has a third portion 18C that connects the first portion 18A and the second portion 18B on the distal end side in the longitudinal direction of the lift arm 10.

The first portion 18A and the second portion 18B extend gradually toward the distal end side of the lift arm 10 in the longitudinal direction in accordance with the shape of the lift arm 10. At the point where the first portion 18A and the second portion 18B are closest, the tips of the first portion 18A and the second portion 18B are connected to each other by the third portion 18C. The third portion 18C has an R shape that matches the shape of the seat surface 16 and connects the tips of the first portion 18A and the second portion 18B. The third portion 18C is formed from a portion where the tips of the first portion 18A and the second portion 18B begin to curve (a portion where the R shape begins), and with this portion as a boundary, the first portion 18A and A second portion 18B and a third portion 18C are defined.

The first portion 18A and the second portion 18B constitute a tapered side portion whose height gradually decreases from the distal end side to the proximal end side of the lift arm 10. For example, as shown in FIGS. 11 and 12, the height of the first portion 18A and the second portion 18B on the distal end side of the lift arm 10 (FIG. 11) is the same as the height of the first portion 18A on the distal end side of the lift arm 10 and the height of the second portion 18B on the proximal end side of the lift arm 10. The height is greater than that of the portion 18A and the second portion 18B (FIG. 12).

At least one of the first portion 18A and the second portion 18B includes an equalizer arm 20 (first arm 21, second arm 22) as another component related to the lift arm 10 in the longitudinal direction of the lift arm 10. It extends to The lift arm 10 and the equalizer arm 20 rotate relative to each other about the pivot portion as the window regulator 1 is driven, thereby changing the degree to which they overlap with each other. Therefore, by extending the first portion 18A and the second portion 18B of the lift arm 10 to the equalizer arm 20, the strength or durability of the lift arm 10 can be improved regardless of the relative rotational position with respect to the equalizer arm 20. There is. More specifically, the first portion 18A and the second portion 18B extend with zero overlap to the pivot joint between the lift arm 10 and the equalizer arm 20, or alternatively, the first portion 18A and the second portion 18B extend to the pivot joint between the lift arm 10 and the equalizer arm 20 with zero overlap. and extends to a position where it overlaps (overlaps) the equalizer arm 20. In particular, the strength or durability of the lift arm 10 can be improved by wrapping the first portion 18A and the second portion 18B with the equalizer arm 20 (entering the arc of the pivot portion). For example, the first portion 18A and the second portion 18B extend to the end edge (plate) of the equalizer arm 20 as a pivot portion so as to have no overlap or overlap. In particular, when the amount of overlap between the lift arm 10 and the equalizer arm 20 is the smallest (the angle between them is approximately 90°), the first portion 18A and the second portion 18B act as the equalizer as a pivot joint. It is preferable to extend to the end edge (plate) of the arm 20 with no amount of overlap or to overlap. Note that at least one of the first portion 18A and the second portion 18B is located in front of the equalizer arm 20 as another component related to the lift arm 10 in the longitudinal direction of the lift arm 10, specifically, in the lift arm 10. 10 and the equalizer arm 20 may extend to the front of the pivot point. Here, the front side of the pivot joint between the lift arm 10 and the equalizer arm 20 means, for example, a range of at least 50 mm from the edge (plate) of the equalizer arm 20 as the pivot joint. In other words, the position of the edge (plate) of the equalizer arm 20 as a pivot joint is defined as 0 mm, the position 50 mm before this is defined, and the base from which the first portion 18A and the second portion 18B extend is defined. When the position of the end portion is defined as Ymm, 0<Y<50 or 0<Y≦50 can be satisfied.

In the flange portion 18, a first portion 18A and a second portion 18B are connected at a third portion 18C (connected at the tip of the lift arm 10), and at least the tip of the lift arm 10 in the longitudinal direction The slider (sliding member) 12 provided on the side is located within the width A of the lift arm bracket (sliding member) 30 on which it slides. Here, the width A of the lift arm bracket 30 means not only the width of the guide 31 but also the entire width of the lift arm bracket 30 including the guide 31 (not only the flange portion where the guide 31 is known but also the flat surface). ). In FIGS. 1 to 3, the width A of the lift arm bracket 30 defined as described above is illustrated with a reference symbol.

In this way, by positioning the flange portion 18 at least within the range of the width A of the lift arm bracket 30 on which the slider 12 slides, for example, when the third bead 15C receives the torsional force, The strength or durability of the lift arm 10 can be improved by absorbing the torsional force applied from the lift arm 10 (the occurrence of torsion can be prevented). Further, the strength or durability of the lift arm 10 against buckling force (compressive force) can be improved.

Furthermore, at least a portion (for example, the tip) of the third portion 18C of the flange portion 18 is located at the tip in the longitudinal direction of the lift arm 10 and within the range of the guide 31 of the lift arm bracket 30. ing. Further, at least a portion of the third portion 18C of the flange portion 18 (for example, a certain area including the tip portion) is located at at least a portion of the corner portion of the seat surface 16 located on the tip side in the longitudinal direction of the lift arm 10. are doing. Thereby, the strength or durability of the lift arm 10 against torsional stress and buckling force (compressive force) can be improved.

Furthermore, the flange portion 18 has rounded surface portions 18AR, 18BR, and 18CR that stand up in a rounded manner from a surface that is located on the outer periphery of the lift arm 10 and is continuous with the flange portion 18 within the range of the width A of the slider 12. . The first portion 18A has an R surface portion 18AR that stands up in a rounded manner from the reference wall portion 14 that is located on the outer periphery of the lift arm 10 and is continuous with the flange portion 18 within the range of the width A of the slider 12 ( Figure 11, Figure 12). The second portion 18B has an R surface portion 18BR that stands up in a rounded manner from the reference wall portion 14 that is located on the outer periphery of the lift arm 10 and is continuous with the flange portion 18 within the range of the width A of the slider 12. Figure 11, Figure 12). The third portion 18C has a reference wall portion 14 that is located on the outer periphery of the lift arm 10 and is connected to the flange portion 18, and a rounded surface portion 18CR that stands up from the seat surface 16 within the range of the width A of the slider 12. (Figures 9 and 10).

By providing such R surface portions 18AR, 18BR, and 18CR, the strength or durability of the lift arm 10 against torsional stress and buckling force (compressive force) can be further improved. Furthermore, when the window regulator 1 is driven, the flange portion 18 can be prevented from interfering (getting caught) with other components (for example, the equalizer arm 20).

The lift arm 10 has a matching portion 19 extending further toward the distal end from the distal end of the lift arm 10 in the longitudinal direction. More specifically, the matching portion 19 further rises from the distal end portion (third portion 18C) of the flange portion 18, and then is bent and extends further toward the distal end side. The matching portion 19 is a portion for connecting to other materials during molding of the lift arm 10, etc., and only needs to have a minimum length for bending. By providing the matching portion 19, the length of the tip end side of the lift arm 10 can be increased.

[Lift arm 10 of second aspect]
A second embodiment of the lift arm 10 will be described with reference to FIGS. 4 to 6 and 15 to 17. 4, 5, and 6 are enlarged views of section IV, section V, and section VI of FIG. 3. 15 and 16 are a perspective view and a plan view showing the lift arm 10 of the second embodiment. FIG. 17 is a sectional view taken along line GG in FIG. 16.

In the lift arm 10 of the first embodiment, the first portion 18A and the second portion 18B of the flange portion 18 were connected at the third portion 18C (connected at the tip of the lift arm 10). On the other hand, in the lift arm 10 of the second embodiment, a recess 18D is formed in which the third portion 18C is interrupted at the tip of the lift arm 10. A matching portion 19 is formed to protrude from the inside of this recessed portion 18D.

Also in the lift arm 10 of the second aspect, by positioning the flange portion 18 at least within the range of the width A of the lift arm bracket 30 on which the slider 12 slides, for example, the third bead 15C can reduce the torsional force. The strength or durability of the lift arm 10 can be improved by absorbing the torsional force applied from the outside when the lift arm 10 is received (the occurrence of torsion can be prevented). Further, the strength or durability of the lift arm 10 against buckling force (compressive force) can be improved.

In the above embodiment, the lift arm 10 includes the first bead 15A, the second bead 15B, the third bead 15C, and the flange portion 18 (the first portion 18A and the second portion 18B are The case where the portion 18C) is provided has been explained as an example. However, the window regulator 1 of the present embodiment has a first bead 15A, a second bead 15B, and a third bead 15C. The first bead 15A, the second bead 15B, and the third bead 15A are omitted. It is also possible to omit the third bead 15C. In either embodiment, the strength or durability of the lift arm 10 against torsional stress and buckling force (compressive force) can be improved.

In the above embodiment, the base ends of the first arm 21 and the second arm 22 of the equalizer arm 20 are joined to each other at the central portion in the longitudinal direction of the lift arm 10, thereby forming the lift arm 10 and the equalizer arm 20 into an X-shape. The so-called X-arm type window regulator 1, which is pivotally connected to the window regulator 1, has been described as an example. However, the window regulator 1 of this embodiment is also applicable to a so-called single-arm type window regulator in which the equalizer arm 20 is omitted and only the lift arm 10 is used.

In the above embodiment, the power type (electric type) window regulator 1 in which the lift arm 10 is rotated by the drive unit 50 has been illustrated and explained. However, the window regulator 1 of this embodiment can also be applied to a manual window regulator instead of the drive unit 50.

In the above embodiment, the equalizer arm 20 has been described as an example of other components related to the lift arm 10, but other components related to the lift arm 10 include various members, parts, etc. other than the equalizer arm 20. It may be a part, etc.

1 Window regulator 10 Lift arm (arm)
11 Roller pin (slider connecting member, sliding member connecting member)
12 Slider (sliding member, shoe)
13 Through hole 14 Reference wall part (bottom wall part)
15A First bead 15B Second bead 15C Third bead 16 Seat surface 17 Connection portion 18 Flange portion 18A First portion 18AR R surface portion 18B Second portion 18BR R surface portion 18C Third portion 18CR R surface portion 18D Recess 19 Matching section 20 Equalizer arm (other components)
21 1st arm 21S slider (shoe)
22 Second arm 22S slider (shoe)
30 Lift arm bracket (guide rail, sliding member)
31 Guide (sliding part, sliding groove)
40 Equalizer arm bracket 50 Drive unit 51 Motor 52 Sector gear

Claims (7)

It has an arm for driving the window glass,
The arm is
first and second beads spaced apart in the lateral direction of the arm and extending in the longitudinal direction of the arm;
a third bead connecting the first and second beads on the longitudinal end side of the arm;
a seat surface located on the distal end side of the third bead in the longitudinal direction of the arm;
has
the third bead protrudes to one side in the thickness direction of the arm;
The seat surface protrudes to the other side in the thickness direction of the arm,
The third bead and the seat surface are connected so as to straddle the thickness direction of the arm,
A window regulator characterized by: The seat surface is for installing a sliding member connecting member, and protrudes to the outside of the vehicle, which is the sliding member side driven by the sliding member connecting member,
The third bead projects toward the inside of the vehicle.
The window regulator according to claim 1 , characterized in that: at least one of the first and second beads extends in the longitudinal direction of the arm to another component associated with the arm;
The window regulator according to claim 1 or claim 2, characterized in that: At least one of the first and second beads extends in the longitudinal direction of the arm to a position in front of other components related to the arm.
The window regulator according to claim 1 or claim 2, characterized in that: The arm has a flange portion on the outer periphery of the arm that rises in the thickness direction of the arm,
The flange portion extends in the longitudinal direction of the arm to other components related to the arm.
The window regulator according to any one of claims 1 to 4 , characterized in that: The flange portion is
first and second portions that are spaced apart from each other in the lateral direction of the arm and extend in the longitudinal direction of the arm;
a third portion connecting the first and second portions on the tip side in the longitudinal direction of the arm;
The window regulator according to claim 5 , characterized in that it has: The arm has a matching part that extends further toward the distal end from the distal end in the longitudinal direction of the arm.
The window regulator according to any one of claims 1 to 6 , characterized in that:

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