Carrier plate and vehicle window regulator

Abstract

A carrier plate is pulled by a cable to slide on a guide rail and lift a window glass, and is provided with: a cable end housing part for housing an end part of the cable; and a receiving groove for receiving a cable extending from the cable end receiving portion toward the outside of the carrier plate, the carrier plate having a structure in which a protrusion contacting the cable is formed only on one of two opposing side walls of the receiving groove. With such a structure, it is possible to provide a carrier plate and a window regulator that suppress vibration of the cable and facilitate sliding of the cable in a balanced manner.

Description

Technical Field

[0001] The present invention relates to a carrier plate and a window regulator. Background Art

[0002] Conventionally, a window regulator that uses a cable to pull and hold a window glass of a vehicle and slides it on a guide rail to raise and lower the window glass has been widely used. The window regulator is provided in a door of an automobile or the like.

[0003] For example, Patent Document 1 discloses the following window regulator: a groove bent in an S shape is formed in a carrier plate, and a cable is inserted and held in the groove, thereby suppressing the vibration of the cable and reducing abnormal noise generated by the vibration of the cable.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2018-66192 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] In the window regulator of Patent Document 1 described above, a spring is provided in a housing portion that houses an end portion of a cable, and the cable is pulled by the force of the spring to prevent the cable from becoming slack. However, in such a structure, the cable is strongly pressed from both sides by the S-shaped groove, so that the cable is not easily slidable in the groove, and it is difficult to prevent the cable from becoming slack.

[0009] The present invention has been made in view of such problems, and an object thereof is to provide a carrier plate and a window regulator that can achieve both suppression of cable vibration and ease of cable sliding in a balanced manner.

[0010] Means for Solving the Problems

[0011] In order to achieve the above object, the carrier plate in the present invention is a carrier plate that is pulled by a cable and slides on a guide rail to raise and lower a window glass, and includes: a cable end housing portion that houses an end portion of the cable; and a housing groove that houses the cable extending from the cable end housing portion toward the outside of the carrier plate, and a convex portion that contacts the cable is formed only on one of the opposite two side walls of the housing groove.

[0012] The window regulator in the present invention includes the above-described carrier plate.

[0013] Effects of the Invention

[0014] The carrier plate and the window regulator of the present invention can achieve both suppression of cable vibration and ease of cable sliding in a balanced manner. Brief Description of the Drawings

[0015] Figure 1 ​​Figure 1 is the front view of a window regulator according to an embodiment of the present invention.

[0016] Figure 2 Figure 2 is the side view of the window regulator.

[0017] Figure 3 Figure 3 is the front view of the carrier plate assembled to the guide rail.

[0018] Figure 4 Figure 4 is the rear view of the carrier plate assembled to the guide rail.

[0019] Figure 5 Figure 5 is the perspective view of the carrier plate showing the convex portion formed on the side wall of the downward-side cable housing groove for housing the downward-side cable.

[0020] Figure 6 Figure 6 is the rear view of the carrier plate showing the convex portion formed on the side wall of the downward-side cable housing groove for housing the downward-side cable. Detailed Embodiment

[0021] Refer to Figure 1 and Figure 2 to describe a window regulator 10 according to an embodiment of the present invention. Figure 1 is the front view of a window regulator 10 according to an embodiment of the present invention. Figure 2 is the side view of the window regulator 10.

[0022] In addition, in each of the figures shown in the present embodiment, the X-axis, Y-axis, and Z-axis are shown. The X-axis represents the thickness direction of the carrier plate 12 described below, the Y-axis represents the width direction of the carrier plate 12, and the Z-axis represents the lifting direction of the carrier plate 12.

[0023] The window regulator 10 is supported by a vehicle door panel (not shown). The window regulator 10 is a mechanism for lifting and lowering a window glass (not shown) as a moving object.

[0024] As Figure 1 and Figure 2 shown, the window regulator 10 mainly includes a guide rail 11, a carrier plate 12, an upward-side cable 13, a downward-side cable 14, and a drive unit 15.

[0025] The guide rail 11 is provided along the lifting direction of the window glass and is a component that guides the carrier plate 12 in the lifting direction of the window glass. The guide rail 11 extends substantially in the vehicle up-and-down direction (Z direction) and is provided in a slightly inclined manner with respect to the installed window glass (not shown).

[0026] ​​​​​​​​​​In addition, as Figure 2 shown, the guide rail 11 bends gently in accordance with the bending of the window glass of the vehicle. The guide rail 11 is made of, for example, stainless steel, aluminum alloy, or other hard materials.

[0027] Figure 3 is a front view of the carrier plate 12 assembled to the guide rail 11 as viewed from the front side. The carrier plate 12 holds the lower end portion of the window glass and is slid on the guide rail 11 by being pulled by the ascending side cable 13 or the descending side cable 14 to raise and lower the window glass. The structure of the carrier plate 12 will be described in detail later.

[0028] As Figure 1 shown, a pulley 16 is provided at the upper end portion of the guide rail 11 as a direction changing member for changing the moving direction of the ascending side cable 13.

[0029] A drive unit 15 for winding and unwinding the ascending side cable 13 and the descending side cable 14 is provided at the lower end of the guide rail 11. The drive unit 15 includes a reel housing 17, a reel (not shown), and a drive motor 18.

[0030] The reel housing 17 has a fitting portion that fits with the guide rail 11 and a cylindrical reel accommodating portion. A cylindrical recess for accommodating the reel is formed in the reel accommodating portion. Further, the reel housing 17 has an ascending side cable outlet groove 17a and a descending side cable outlet groove 17b for guiding the ascending side cable 13 and the descending side cable 14 out of the recess to the outside.

[0031] The reel housing 17 supports the reel so as to be rotatable. The drive motor 18 is integrally mounted on the reel housing 17 and rotates the reel in both forward and reverse directions. Further, the reel housing 17 is mounted on the lower end portion of the guide rail 11 and fixes the guide rail 11 to a vehicle door panel (not shown).

[0032] The ascending side cable 13 and the descending side cable 14 pull the carrier plate 12 in the vertical direction (Z direction). The ascending side cable 13 and the descending side cable 14 can be known cables formed by gathering a plurality of metal wires or resin fiber wires.

[0033] One end of the ascending side cable 13 is connected to the carrier plate 12, wound around the pulley 16, and the other end is connected to the reel. One end of the descending side cable 14 is connected to the carrier plate 12, and the other end is connected to the reel.

[0034] The drive motor 18 rotates the reel, thereby winding and unwinding the ascending side cable 13 and the descending side cable 14.

[0035] Figure 4It is a rear view of the carrier plate 12 assembled to the guide rail 11 as viewed from the dorsal side. At one end of the ascending side cable 13 and the descending side cable 14, an ascending side cable end 13a and a descending side cable end 14a are respectively provided.

[0036] The ascending side cable end 13a and the descending side cable end 14a are formed, for example, by die-casting of a metallic material, and respectively have a base end portion for mounting one end of the ascending side cable 13 and the descending side cable 14, and a flange portion having an outer diameter larger than that of the base end portion.

[0037] The base end portion is formed in a cylindrical shape or a frustum shape, and is fixed to one end of the ascending side cable 13 or the descending side cable 14 by casting, riveting, bonding, welding, bolt fixing, or other methods.

[0038] A helical spring 13b and a helical spring 14b are respectively mounted on the ascending side cable end 13a and the descending side cable end 14a. The helical spring 13b and the helical spring 14b are respectively force-applying members that apply force to the ascending side cable end 13a and the descending side cable end 14a in a direction to eliminate the slack of the ascending side cable 13 and the descending side cable 14.

[0039] Next, except for Figure 3 and Figure 4 in addition, Figure 5 and Figure 6 are also used to describe the structure of the carrier plate 12 in the present embodiment.

[0040] Figure 5 It is a perspective view of the carrier plate 12 showing the convex portion 27 formed on the side wall 26b of the descending side cable receiving groove 26 for receiving the descending side cable 14. Figure 6 It is a rear view of the carrier plate 12 showing the convex portion 27 formed on the side wall 26b of the descending side cable receiving groove 26 for receiving the descending side cable 14.

[0041] As Figure 3 and Figure 4 show, the carrier plate 12 has a front surface 12a, a back surface 12b, an upper side edge portion 12c, a lower side edge portion 12d, a left side edge portion 12e, and a right side edge portion 12f.

[0042] The front surface 12a is the surface located on the negative side of the X-axis, and the back surface 12b is the surface located on the positive side of the X-axis. The upper side edge portion 12c is the edge portion of the outer periphery of the carrier plate 12 that is located on the positive side of the Z-axis and extends from the end portion on the negative side of the Y-axis to the end portion on the positive side of the Y-axis. The lower side edge portion 12d is the edge portion of the outer periphery of the carrier plate 12 that is located on the negative side of the Z-axis and extends from the end portion on the negative side of the Y-axis to the end portion on the positive side of the Y-axis.

[0043] The left edge portion 12e is an edge portion of the outer periphery of the carrier plate 12 that is on the positive side of the Y-axis and extends from the end portion on the negative side of the Z-axis to the end portion on the positive side of the Z-axis along an inclined direction. The right edge portion 12f is an edge portion of the outer periphery of the carrier plate 12 that is on the negative side of the Y-axis and extends from the end portion on the negative side of the Z-axis to the end portion on the positive side of the Z-axis along an inclined direction.

[0044] Mounting portions 19 and 20 are provided on the surface 12a. Holes 21 and 22 through which bolts pass are formed in the mounting portions 19 and 20, and a bracket (not shown) for holding a window glass (not shown) is fastened to the mounting portions 19 and 20 by bolts.

[0045] On the back surface 12b, an upward-side cable end housing portion 23, a downward-side cable end housing portion 24, an upward-side cable housing groove 25, and a downward-side cable housing groove 26 are provided.

[0046] The upward-side cable end housing portion 23 houses the end portion of the upward-side cable 13. Specifically, the upward-side cable end housing portion 23 houses the upward-side cable end 13a connected to one end of the upward-side cable 13 and the coil spring 13b mounted on the upward-side cable end 13a.

[0047] The downward-side cable end housing portion 24 houses the end portion of the downward-side cable 14. Specifically, the downward-side cable end housing portion 24 houses the downward-side cable end 14a connected to one end of the downward-side cable 14 and the coil spring 14b mounted on the downward-side cable end 14a.

[0048] The upward-side cable housing groove 25 houses the upward-side cable 13 extending from the upward-side cable end housing portion 23 toward the outside of the carrier plate 12. The upward-side cable housing groove 25 has two opposing side walls 25a and 25b.

[0049] The side wall 25a is the side wall on the side where the guide rail 11 is provided, and the side wall 25b is the side wall on the side opposite to the side where the guide rail 11 is provided. The side wall 25b protrudes toward the outside of the carrier plate 12 compared to the side wall 25a in the longitudinal direction.

[0050] The downward-side cable housing groove 26 houses the downward-side cable 14 extending from the downward-side cable end housing portion 24 toward the outside of the carrier plate 12. The downward-side cable housing groove 26 has two opposing side walls 26a and 26b.

[0051] The side wall 26a is the side wall on the side where the guide rail 11 is provided, and the side wall 26b is the side wall on the side opposite to the side where the guide rail 11 is provided. The side wall 26b protrudes toward the outside of the carrier plate 12 compared to the side wall 26a in the longitudinal direction.

[0052] In the present embodiment, the convex portion 27 that comes into contact with the descending side cable 14 when the descending side cable 14 is housed in the descending side cable housing groove 26 is formed only on the side wall 26b out of the side walls 26a and 26b.

[0053] By the convex portion 27 coming into contact with the descending side cable 14, vibration of the descending side cable 14 can be suppressed and abnormal noise can be reduced when the vehicle door is closed or the like.

[0054] In addition, the convex portion 27 is provided only on the side wall 26b out of the side walls 26a and 26b. Thus, compared with the case where convex portions are provided on both the side wall 26a and the side wall 26b, suppression of vibration of the descending side cable 14 and ease of sliding of the descending side cable 14 can be achieved in a balanced manner.

[0055] Furthermore, Figure 1 The window regulator 10 shown in the figure pulls up the ascending side cable 13 to raise the carrier plate 12 on the guide rail 11. When the carrier plate 12 is constrained at the upper end position, the portion of the carrier plate 12 on the positive Y-axis side with respect to the guide rail 11 is pulled toward the positive Z-axis side by the ascending side cable 13, and the carrier plate 12 slightly rotates clockwise when viewed from the negative X-axis side.

[0056] In this case, the descending side cable 14 moves toward the side wall 26a on the side where the guide rail 11 is provided.

[0057] Therefore, when the convex portion 27 is provided on the side wall 26b on the side opposite to the side where the guide rail 11 is provided, even if the descending side cable 14 moves toward the side wall 26a, the descending side cable 14 is not strongly pressed by the convex portion 27. As a result, damage to the descending side cable 14 due to bending fatigue can be prevented.

[0058] In addition, the convex portion 27 is formed at the end portion on the side opposite to the descending side cable end housing portion 24 side out of the two end portions in the longitudinal direction of the side wall 26b. Thus, the descending side cable 14 comes into contact with the convex portion 27 at a position as far as possible from the descending side cable end housing portion 24, so vibration of the descending side cable 14 is further suppressed and the effect of reducing abnormal noise is increased.

[0059] Moreover, an elastic body 28 such as rubber for cushioning the impact when the carrier plate 12 comes into contact with the drum housing 17 is provided on the lower edge portion 12d. The portion of the side wall 26b where the convex portion 27 is provided constitutes one holding portion 29a on the side where the guide rail 11 is provided out of the two holding portions 29a and 29b that sandwich and hold the elastic body 28 from both sides.

[0060] In this way, by providing the convex portion 27 on the side wall 26b that functions as the holding portion 29a, there is no need to add a new component to the carrier plate 12, so the shape of the carrier plate 12 can be simplified and the carrier plate 12 can be miniaturized.

[0061] Next, the shape of the convex portion 27 will be further described in detail. Figure 5 and Figure 6 The structure of the carrier board 12 near the convex portion 27 is shown.

[0062] As Figure 6 shown, the end portion of the side wall 26a on the opposite side of the descending side cable end accommodating portion 24 is formed in an arc shape with a radius of curvature R2.

[0063] Thus, even if the convex portion 27 is provided on the side wall 26b, the descending side cable 14 can be easily accommodated in the descending side cable accommodating groove 26.

[0064] In addition, as described above, as a result of pulling the ascending side cable 13 and raising the carrier board 12 on the guide rail 11, even if the descending side cable 14 moves toward the side wall 26a, the descending side cable 14 contacts the arc-shaped end portion of the side wall 26a, so it will not be pressed by the angular portion. Therefore, damage to the descending side cable 14 due to bending fatigue can be prevented.

[0065] In addition, the convex portion 27 provided at the end portion of the side wall 26b on the opposite side of the descending side cable end accommodating portion 24 has a first portion 27a on the side of the descending side cable end accommodating portion 24, a second portion 27b on the side opposite to the side of the descending side cable end accommodating portion 24, and a third portion 27c connecting the first portion 27a and the second portion 27b between the first portion 27a and the second portion 27b.

[0066] When observing the back surface 12b of the carrier board 12 in a direction perpendicular to the back surface 12b, the first portion 27a and the second portion 27b are formed in arc shapes, and the radius of curvature R3 of the first portion 27a is larger than the radius of curvature R1 of the second portion 27b.

[0067] The third portion 27c is formed to have a straight line portion parallel to the length direction of the descending side cable accommodating groove 26 when observing the back surface 12b of the carrier board 12 in a direction perpendicular to the back surface 12b.

[0068] The first portion 27a is a portion that guides the descending side cable 14 accommodated in the descending side cable accommodating groove 26 to the third portion 27c. The second portion 27b is a portion that guides the descending side cable 14 to the outside of the carrier board 12. In addition, the third portion 27c is a portion that guides the descending side cable 14 in the length direction of the descending side cable accommodating groove 26.

[0069] By making the radius of curvature R3 of the first part 27a larger than the radius of curvature R1 of the second part 27b, it is possible to avoid generating large bending stress on the descending side cable 14 in the first part 27a, and to prevent the descending side cable 14 from contacting the angular part in the second part 27b and deteriorating the strength of the descending side cable 14.

[0070] In addition, in the above-described embodiment, the case where the convex portion 27 is provided only on the side wall 26b located on the side opposite to the side where the guide rail 11 is provided has been described. However, the convex portion may be provided only on the side wall 26a located on the side where the guide rail 11 is provided, and the convex portion may be brought into contact with the descending side cable 14.

[0071] In addition, the convex portion 27 is formed at the end of the two end portions in the length direction of the side wall 26b on the side opposite to the descending side cable end accommodating portion 24 side. However, the convex portion 27 may be provided at a position closer to the descending side cable end accommodating portion 24 side than this end portion.

[0072] In these cases, it is also possible to suppress the vibration of the descending side cable 14 and reduce abnormal noise.

[0073] In addition, in the above-described embodiment, in the above length direction, the side wall 26b protrudes more than the side wall 26a, and the protruding portion constitutes the holding portion 29a, and the holding portion 29a holds the elastic body 28 that alleviates the impact when the carrier plate 12 contacts the reel housing 17. However, when a convex portion is provided on the carrier plate that does not have the elastic body 28, the side wall 26b does not necessarily have to protrude more than the side wall 26a.

[0074] Moreover, the shape of the convex portion 27 is not limited to being formed by the first part 27a having a radius of curvature R3, the second part 27b having a radius of curvature R1, and the third part 27c connecting the first part 27a and the second part 27b. As long as it contacts the descending side cable 14, it can be any shape.

[0075] In addition, in the above-described embodiment, the convex portion is formed only on the side wall 26b of the two opposite side walls 26a and 26b of the descending side cable accommodating groove 26. However, the convex portion may be formed only on one of the two opposite side walls 25a and 25b of the ascending side cable accommodating groove 25.

[0076] In this case, it is possible to evenly achieve suppression of the vibration of the ascending side cable 13 and ease of sliding of the ascending side cable 13.

[0077] The above describes one embodiment of the present invention. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the invention. In particular, the multiple embodiments and modification examples described in this specification can be arbitrarily combined as needed.

[0078] Industrial Applicability

[0079] The present invention can be applied to a window regulator for driving the raising and lowering of a window glass of an automobile.

[0080] Explanation of Reference Numerals

[0081] 10 Window regulator

[0082] 11 Guide rail

[0083] 12 Carrier plate

[0084] 12a Surface

[0085] 12b Back surface

[0086] 12c Upper edge portion

[0087] 12d Lower edge portion

[0088] 12e Left edge portion

[0089] 12f Right edge portion

[0090] 13 Upward side cable

[0091] 13a Upward side cable end

[0092] 13b Helical spring

[0093] 14 Downward side cable

[0094] 14a Downward side cable end

[0095] 14b Helical spring

[0096] 15 Driving portion

[0097] 16 Pulley

[0098] 17 Reel housing

[0099] 18 Driving motor

[0100] 19, 20 Mounting portion

[0101] 21, 22 Hole

[0102] 23 Upward side cable end receiving portion

[0103] 24 Downward side cable end receiving portion

[0104] 25 Upward side cable receiving groove

[0105] 25a, 25b Side wall

[0106] 26 Downward side cable receiving groove

[0107] Side walls 26a, 26b

[0108] Protrusion 27

[0109] First part of the protrusion 27a

[0110] Second part of the protrusion 27b

[0111] Third part of the protrusion 27c

[0112] Elastomer 28

[0113] Retention parts 29a, 29b

Claims

1. A carrier plate is pulled by a cable to slide on a guide rail and raise or lower the window glass, wherein: The carrier board has: A cable end receiving portion for receiving an end of the cable; and a receiving groove for receiving the cable extending from the cable end receiving portion toward the outside of the carrier board, A convex portion contacting the cable is formed on only one of the two opposite side walls of the receiving groove.

2. The carrier board according to claim 1, wherein: The one side wall is a side wall located on a side opposite to a side where the guide rail is provided.

3. The carrier board according to claim 1, wherein: The convex portion is formed at an end portion on a side opposite to a side of the cable end receiving portion, among two end portions in the longitudinal direction of the one side wall.

4. The carrier board according to claim 3, wherein: The one side wall protrudes in the length direction relative to the other of the two side walls.

5. The carrier board according to claim 4, wherein: The portion of the one side wall that protrudes from the other side wall holds the elastic body, and the elastic body mitigates the impact when the carrier plate contacts other components.

6. The carrier board according to claim 3, wherein: When observing the surface from a direction perpendicular to the surface of the carrier, a first portion of the protrusion located on one side of the cable end receiving portion has a curvature radius greater than a second portion of the protrusion located on a side opposite to the cable end receiving portion.

7. The carrier board according to claim 6, wherein: When the surface of the carrier board is viewed from a direction perpendicular to the surface, the projection has a straight line portion between the first portion and the second portion, the straight line portion connecting the first portion and the second portion.

8. A window regulator comprising the carrier plate according to claim 1.

Images