Object moving device and window regulator

Abstract

To provide an object moving device which can reduce the inclination of a drum when the device is attached to a drum housing and can suppress the separation of the drum from the drum housing.SOLUTION: In an object moving device, a support shaft 34 of a drum housing 13 has a first shaft section 51, a second shaft section 52, and a claw section 54. The first shaft section 51 is disposed on the distal end side. The second shaft section 52 is disposed closer to the bottom surface 42 than the first shaft section 51. The claw section 54 is disposed on the outer side surface 51a of the first shaft section 51. At least a part of the first shaft section 51 has a small diameter section 61, the length from the center shaft 34o of the support shaft 34 of the first shaft section 51 to the outer side surface 51a being shorter than the length from the center shaft 34o of the support shaft 34 of the second shaft section 52 to the outer side surface 52a. A drum 11 has a flange section 25 formed from the inner peripheral surface of a shaft hole 21 toward the center of the shaft hole 21, and is mounted to the support shaft 34 so that the flange section 25 faces the second shaft section 52.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an object moving device and a window regulator.

Background Art

[0002] As an object moving device that moves an object using a cable, a window regulator that opens and closes a window of an automobile can be cited (see, for example, Patent Document 1). When assembling such an object moving device that drives an object using a cable, the motor may be attached to the drum housing with the drum around which the tensioned cable is wound disposed on the support shaft of the drum housing.

[0003] In this case, since tension is acting on the cable, before attaching the motor, there was a risk that the drum would tilt with the support shaft of the drum housing as a fulcrum and the drum would detach from the drum housing.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In order to suppress the detachment of the drum from the drum housing, it is conceivable to provide an engaging claw on the support shaft of the housing. However, with such a configuration, when attaching the drum to the housing, it is necessary to tilt the drum with respect to the drum housing for attachment. For this reason, the drum housing is enlarged, and a gap is formed between the outer peripheral surface of the drum when the drum is accommodated and the inner peripheral surface of the drum housing. The presence of such a gap causes the wire to separate from the cable groove of the drum, leading to cable entanglement.

[0006] The present disclosure aims to provide an object moving device and a window regulator that can reduce the inclination of a drum when attached to a drum housing and suppress detachment of the drum from the drum housing.

Means for Solving the Problems

[0007] The object moving device of the present disclosure includes a moving member, a cable, a drum, and a drum housing. The moving member is attached to an object to be moved. The cable is connected to the moving member. The drum has a shaft hole at its center and winds or unwinds the cable. The drum housing rotatably accommodates the drum. The drum housing protrudes from the bottom surface of the accommodating portion that accommodates the drum and has a support shaft that is inserted into the shaft hole of the drum. The support shaft has a first shaft portion, a second shaft portion, and a protruding portion. The first shaft portion is disposed on the tip side of the support shaft. The second shaft portion is disposed on the bottom surface side rather than the first shaft portion. The protruding portion is disposed on the side surface of the first shaft portion. The first shaft portion has a small diameter portion at least partially, and the length from the central axis of the support shaft of the first shaft portion to the side surface is shorter than the length from the central axis of the support shaft of the second shaft portion to the side surface. The drum has a flange portion formed from the inner peripheral surface of the shaft hole toward the center of the shaft hole, and the flange portion is attached to the support shaft so as to face the second shaft portion.

[0008] The window regulator of the present disclosure includes a carrier plate, a cable, a cable guide, a drum, and a drum housing. The carrier plate holds the window glass. One end of the cable is connected to the carrier plate and pulls the carrier plate in a predetermined direction. The cable guide changes the direction of the cable. The drum has the other end of the cable connected thereto and winds or unwinds the cable wound around the cable guide. The drum housing rotatably houses the drum. The drum housing protrudes from the bottom surface and has a support shaft inserted through the axial hole of the drum. The support shaft has a first shaft portion, a second shaft portion, and a protruding portion. The first shaft portion has a small-diameter portion that is smaller in diameter than the second shaft portion at least in part. The drum has a flange portion formed from the inner peripheral surface of the axial hole toward the center of the axial hole, and the flange portion is attached to the support shaft so as to face the second shaft portion.

Advantages of the Invention

[0009] According to the present disclosure, it is possible to provide an object moving device and a window regulator that can reduce the inclination of the drum when attaching the drum to the drum housing and suppress the drum from detaching from the drum housing.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12A

Figure 12B

Figure 12C

Mode for Carrying Out the Invention

[0011] Hereinafter, a window regulator will be described as an example of an object moving device according to the present disclosure with reference to the drawings. Note that the following embodiments are merely examples, and the object moving device is not limited to the following embodiments.

[0012] (Outline of Window Regulator 1) The window regulator 1 is disposed on a door panel of a vehicle door. The window regulator 1 is a mechanism for moving a window glass W (an example of a moving object) of a vehicle up and down. FIG. 1 is a perspective view seen from the outside of the vehicle with the window regulator 1 attached to the vehicle. FIG. 2 is a perspective view seen from the inside of the vehicle with the window regulator 1 attached to the vehicle.

[0013] As shown in FIGS. 1 and 2, the window regulator 1 includes a guide rail 2, a carrier plate 3 (an example of a moving member), a cable guide 4, a drive unit 5, and cables 6 and 7.

[0014] The guide rail 2 is arranged along the lifting direction of the window glass W (only partially shown by the dotted line). The guide rail 2 is a member that guides the carrier plate 3 in the lifting direction of the window glass W.

[0015] The carrier plate 3 holds the lower end portion of the window glass W. The carrier plate 3 is a member that engages with the guide rail 2 and is slidably guided in the lifting direction of the window glass W. The carrier plate 3 moves up and down along the guide rail 2.

[0016] The cable guide 4 changes the moving direction of the cable 6. The cable guide 4 is arranged at the upper end of the guide rail 2. The cable guide 4 is, for example, a pulley.

[0017] The drive unit 5 winds and unwinds the cables 6 and 7. The drive unit 5 is arranged at the lower end of the guide rail 2. The drive unit 5 is provided with a drum 11 (see FIG. 5 described later), and the ends of the cables 6 and 7 are connected thereto.

[0018] The vertical direction when the cable guide 4 is attached to the vehicle is indicated by A. Among the vertical direction A, the upward direction toward the cable guide 4 is indicated by the arrow A1, and the downward direction toward the drive unit 5 is indicated by the arrow A2. Also, the front-rear direction of the vehicle when the cable guide 4 is attached to the vehicle is indicated by B. Among the front-rear direction B, the forward direction is indicated by the arrow B1, and the rearward direction among the front-rear direction B is indicated by the arrow B2. Further, the width direction of the vehicle perpendicular to the vertical direction A and the front-rear direction B is indicated by C. Among the width direction C, the inner direction when the cable guide 4 is attached to the vehicle is indicated by the arrow C1, and the outer direction is indicated by the arrow C2.

[0019] Cable 6 is a lifting cable for lifting the carrier plate 3. One end of cable 6 is connected to the carrier plate 3. Cable 6 extends upward from the carrier plate 3, is wound around the cable guide 4, and extends downward from the cable guide 4. The other end of cable 6 is connected to the drum 11.

[0020] Cable 7 is a lowering cable for lowering the carrier plate 3. One end of cable 7 is connected to the carrier plate 3. Cable 7 extends downward from the carrier plate 3. The other end of cable 7 is connected to the drum 11.

[0021] As cables 6 and 7, known ones in which a plurality of metal strands or resin fiber strands are brought together can be used.

[0022] (Drive unit 5) Figure 3 is a cross-sectional view of the drive unit 5. As shown in FIGS. 1 to 3, the drive unit 5 includes a drum 11, a motor 12, a drum housing 13, and a motor housing 14.

[0023] (Drum 11) The ends of cables 6 and 7 are connected to the drum 11. The drum 11 winds up and pays out cables 6 and 7. The motor 12 rotates the drum 11. The motor 12 is configured to be capable of rotating forward and backward, and rotates the drum 11 forward and backward. Thereby, cables 6 and 7 connected to the drum 11 are wound up by the drum 11 or paid out from the drum 11. As shown in FIGS. 1 and 2, the motor 12 is provided integrally with the motor housing 14. The output shaft (not shown) of the motor 12 is connected to the drum 11 via a speed reduction mechanism (not shown) disposed in the motor housing 14, and rotates the drum 11.

[0024] Figure 4 is a perspective view showing the drum 11 and the drum housing 13. Figure 5 is a perspective view showing a state where the drum 11 is taken out from the drum housing 13. Figure 6 is a cross-sectional view of the drum 11.

[0025] As shown in FIG. 5, the drum 11 is cylindrical. The drum 11 has a shaft hole 21 along the central axis of the cylinder. As shown in FIG. 6, the drum 11 has an inner-direction C1 side surface 22 and an outer-direction C2 side surface 23. The shaft hole 21 is provided so as to penetrate from the surface 22 to the surface 23. A plurality of grooves 24a are formed on the cylindrical side surface 24 of the drum 11. The cables 6 and 7 wound around the drum 11 are arranged along the grooves 24a. As shown in FIG. 6, the drum 11 has a flange portion 25. The flange portion 25 is arranged from the inner peripheral surface 21b of the shaft hole 21 toward the central axis 21o of the shaft hole 21. The flange portion 25 is formed over the entire circumference in the circumferential direction of the shaft hole 21.

[0026] As shown in FIG. 6, the shaft hole 21 has a first shaft hole portion 211 and a second shaft hole portion 212. The first shaft hole portion 211 is arranged on the inner-direction C1 side of the shaft hole 21. The second shaft hole portion 212 is arranged on the outer-direction C2 side of the shaft hole 21. The second shaft hole portion 212 is formed to have a larger inner diameter than the first shaft hole portion 211. A plurality of convex portions and concave portions are formed in the second shaft hole portion 212 by spline machining parallel to the central axis 21o of the shaft hole 21. A speed reduction mechanism to which the driving force of the motor 12 is transmitted is connected to the second shaft hole portion 212.

[0027] The flange portion 25 is arranged at the inner-direction C1 side end of the first shaft hole portion 211. An inclined surface 25a is provided on the inner-direction C1 side of the flange portion 25. The inclined surface 25a is inclined so as to face the outer-direction C2 side as it faces the center of the shaft hole 21. The shaft hole 21 is narrowed at the flange portion 25, and the inner diameter of the shaft hole 21 at the flange portion 25 is formed to be approximately the same size as the outer diameter of the second shaft portion 52 of the support shaft 34 described later.

[0028] (Drum housing 13) FIG. 7 is a front view of the drum housing 13. The drum housing 13 has a mounting portion 31, a connecting portion 32, a housing portion 33, and a support shaft 34. The mounting portion 31 is attached to an object to be attached such as a door panel. In the present embodiment, two mounting portions 31 are provided. The two mounting portions 31 are provided on the outer peripheral portion of the drum housing 13. A fastening hole through which a fastening member such as a bolt is inserted is formed in the mounting portion 31. The fastening member is fastened to the object to be attached through the fastening hole.

[0029] The connecting portion 32 is provided for connecting to the motor housing 14. In the present embodiment, four connecting portions 32 are provided. The connecting portions 32 are provided on the outer peripheral portion of the drum housing 13. A fastening hole through which a fastening member such as a bolt is inserted is formed in the connecting portion 32, and a fastening hole is also formed in the motor housing 14. The drum housing 13 and the motor housing 14 are fastened by inserting the fastening member into the fastening hole of the connecting portion 32 and the fastening hole of the motor housing 14. In FIG. 3, a bolt 100 is shown as an example of the fastening member.

[0030] The accommodating portion 33 houses the drum 11. FIG. 8 is a perspective view of the vicinity of the accommodating portion 33 of the drum housing 13 viewed from the downward A2 side. FIG. 9 is a perspective view of the vicinity of the accommodating portion 33 of the drum housing 13 viewed from the upward A1 side. The accommodating portion 33 has a side wall portion 41 and a bottom surface 42. The side wall portion 41 forms the side wall of the accommodating portion 33. The side wall portion 41 is formed along the width direction C as shown in FIG. 3. The side wall portion 41 has a first side wall portion 411 and a second side wall portion 412 as shown in FIGS. 8 and 9. The first side wall portion 411 is curved so as to follow the side surface 24 of the drum 11. The first side wall portion 411 is disposed on the upward A1 side of the accommodating portion 33. The second side wall portion 412 is curved so as to follow the side surface 24 of the drum 11. The second side wall portion 412 is disposed on the downward A2 side with respect to the first side wall portion 411. A space is provided between the rearward B2 side end of the first side wall portion 411 and the second side wall portion 412. This space forms a cable outlet 35 through which the cable 6 connected to the drum 11 extends upward in the A1 direction. A space is provided between the forward B1 side end of the first side wall portion 411 and the second side wall portion 412. This space forms a cable outlet 36 through which the cable 7 connected to the drum 11 extends upward in the A1 direction.

[0031] As shown in FIG. 3, the bottom surface 42 is disposed perpendicular to the width direction C. The bottom surface 42 is circular as shown in FIGS. 8 and 9. The side wall portion 41 is formed outward in the C2 direction from around the bottom surface 42.

[0032] As shown in FIG. 3, the bottom surface 42 has an inclined portion 42a around the support shaft 34. The inclined portion 42a is inclined toward the outer C2 side as it approaches the support shaft 34. The inclined portion 42a of the bottom surface 42 faces the inclined surface 25a of the flange portion 25 of the drum 11.

[0033] (Support shaft 34) As shown in FIGS. 8 and 9, the support shaft 34 is disposed on the bottom surface 42. As shown in FIG. 3, the support shaft 34 projects from the bottom surface 42 toward the outer direction C2. When the drum 11 is housed in the drum housing 13, the support shaft 34 is inserted into the shaft hole 21 of the drum 11. The support shaft 34 is disposed inside the first shaft hole portion 211 of the shaft hole 21. The support shaft 34 is cylindrical, and a shaft extending from the speed reducer side disposed in the motor housing 14 is inserted inside thereof.

[0034] FIG. 10 is a cross-sectional view of the support shaft 34. FIG. 11 is an enlarged view of the support shaft 34 in FIG. 7.

[0035] The support shaft 34 has a first shaft portion 51, a second shaft portion 52, a tapered portion 53, and a claw portion 54 (an example of a protruding portion). The first shaft portion 51 is disposed on the tip side (outer direction C2 side) of the support shaft 34. The second shaft portion 52 is disposed on the bottom surface 42 side rather than the first shaft portion 51. The second shaft portion 52 has a cylindrical shape. In FIG. 10, the central axis 34o of the second shaft portion 52 is shown. The central axis 34o can be said to be the central axis of the support shaft 34. In a state where the drum 11 is attached to the support shaft 34, as shown in FIG. 3, the central axis 34o substantially coincides with the central axis 21o of the shaft hole 21 of the drum 11. The tapered portion 53 connects the first shaft portion 51 and the second shaft portion 52. The length of the first shaft portion 51 in the direction along the central axis 34o is formed to be longer than the length of the second shaft portion 52.

[0036] As shown in FIG. 10, the first shaft portion 51 has a small-diameter portion 61. The small-diameter portion 61 is a portion of the first shaft portion 51 where the length Ls (see FIG. 11) from the central axis 34o of the first shaft portion 51 to the outer surface portion 61a (an example of a second outer surface portion) is shorter than the length L2 (see FIG. 11) from the central axis 34o of the second shaft portion 52 to the outer surface 52a.

[0037] As shown in FIG. 9, a notch is formed in part along the circumferential direction of the central axis 34o on the outer surface 51a of the first shaft portion 51, and a small-diameter portion 61 is formed on the first shaft portion 51 by the notch. The small-diameter portion 61 is formed over the entire first shaft portion 51 in the direction along the central axis 34o. The portion of the outer surface 51a of the first shaft portion 51 where the notch is formed is the outer surface portion 61a of the small-diameter portion 61. In the present embodiment, as shown in FIG. 11, among the cylindrical first shaft portions 51, the columnar portion with a substantially fan-shaped cross-sectional shape, which is delimited by the arc on which the outer surface portion 61a is disposed, and the straight lines connecting both ends of the arc and the central axis 34o respectively, can be said to be the small-diameter portion 61.

[0038] As shown in FIG. 8, of the outer surface 51a of the first shaft portion 51, the portion other than the outer surface portion 61a is defined as the outer surface portion 51b (an example of the first outer surface portion). The outer surface portion 61a is provided on the upward A1 side of the outer surface 51a of the first shaft portion 51. When attaching the drum 11 to the drum housing 13, since the tension of the cables 6 and 7 acts on the drum 11 in the upward A1 direction, it can be said that the outer surface portion 61a is disposed on the outer surface 51a on the side in the direction in which the tension of the cables 6 and 7 acts on the drum 11 when the shaft hole 21 of the drum 11 is inserted into the first shaft portion 51.

[0039] As shown in FIGS. 10 and 11, the length from the central axis 34o to the outer surface portion 51b is the same length L2 as the radius of the second shaft portion 52. In the present embodiment, the outer surface portion 51b has an arc shape when viewed along the central axis 34o. The radius of the outer surface portion 51b is constant and is length L2.

[0040] As shown in FIG. 11, the length Ls from the central axis 34o to the outer surface portion 61a is the shortest at the upper A1-side end of the outer surface portion 61a. The upper A1-side end of the outer surface portion 61a is indicated by position P1. The length Ls from the central axis 34o to position P1 is indicated by length L1.

[0041] Also, as it goes forward in the forward direction B1 along the circumferential direction from the upward A1 side (see arrow D1), the length Ls becomes longer and becomes the length L2 at the position P2 of the end on the forward B1 side. Also, as it goes backward in the backward direction B2 along the circumferential direction from the upward A1 side (see arrow D2), the length Ls becomes longer and becomes the length L2 at the position P3 on the backward B2 side. The small-diameter portion 61 is a substantially fan-shaped region from the position P2 to the position P3 that includes the position P1 and is centered on the central axis 34o.

[0042] As described above, the outer surface 52a of the second shaft portion 52 is circular in shape when viewed along the central axis 34o, and the radius length is L2. Therefore, as shown in FIG. 10, the outer surface 52a of the second shaft portion 52 is arranged on the same plane as the outer surface portion 51b of the first shaft portion 51. On the other hand, the outer surface portion 61a of the outer surface 51a of the first shaft portion 51 is located closer to the central axis 34o side than the outer surface 52a. For this reason, a step is formed between the outer surface portion 61a and the outer surface 52a.

[0043] As shown in FIG. 10, the tapered portion 53 connects between the outer surface portion 61a and the outer surface 52a. The tapered portion 53 is formed to be inclined so that the distance from the central axis 34o increases from the outer surface portion 61a toward the outer surface 52a.

[0044] The claw portion 54 is arranged to project radially outward from the outer surface portion 51b of the first shaft portion 51. The claw portion 54 is arranged on the downward A2 side of the outer surface 51a of the first shaft portion 51. In other words, it can be said that the claw portion 54 is arranged on the outer surface 51a of the first shaft portion 51 on the side opposite to the direction in which the tension of the cables 6 and 7 acts on the drum 11. As shown in FIG. 11, the claw portion 54 is provided on the opposite side of the outer surface 51a of the first shaft portion 51 across the central axis 34o from the position P1 of the small-diameter portion 61.

[0045] As shown in Fig. 10, the claw portion 54 has an inclined surface 54a disposed on the outer direction C2 side. The inclined surface 54a is inclined from the tip side of the support shaft 34 toward the bottom surface 42 side of the drum housing 13. The inclined surface 54a is inclined such that the bottom surface 42 side is farther from the central axis 34o of the support shaft 34 in the radial direction than the tip side. In the present embodiment, as shown in Fig. 11, the claw portion 54 is formed in a substantially rectangular shape when viewed along the central axis 34o. As shown in Fig. 10, when the length from the central axis 34o to the end of the claw portion 54 is L3, and the length from the outer surface 51a of the first shaft portion 51 passing through the central axis 34o and perpendicular to the central axis 34o to the end of the claw portion 54 is X, and the diameter of the outer periphery of the second shaft portion 52 is Y (i.e., Y = L2 + L2), in the present embodiment, 1.08 ≦ Y / X ≦ 1.2 is satisfied.

[0046] The first shaft portion 51 has an insertion portion 511 on the tip side of the claw portion 54. The insertion portion 511 is inserted into the shaft hole 21 of the drum 11 when attaching the drum 11 to the drum housing 13, and is a portion for positioning the drum 11 with respect to the drum housing 13.

[0047] As shown in Fig. 3, in the state where the drum 11 is housed in the drum housing 13, the claw portion 54 is disposed on the outer direction C2 side of the flange portion 25 of the drum 11. Also, as described above, the inner diameter of the flange portion 25 is formed to be approximately the same size as the outer diameter of the second shaft portion 52 of the support shaft 34, and the flange portion 25 is attached to the support shaft 34 so as to face the second shaft portion 52.

[0048] (Mounting method) Next, the attachment of the drum 11 to the drum housing 13 will be described.

[0049] Figs. 12A to 12C are diagrams for explaining the attachment of the drum 11 to the drum housing 13 in the present embodiment.

[0050] As shown in FIG. 12A, the shaft hole 21 of the drum 11 is inserted into the insertion portion 511 of the support shaft 34 of the drum housing 13. Here, cables 6 and 7 are attached to the drum 11, and a tension is applied to the drum 11 in the upward direction A1. For this reason, the shaft hole 21 is located closer to the upper side with respect to the support shaft 34. Specifically, as shown in FIG. 12A, the portion on the downward A2 side of the flange portion 25 abuts against the insertion portion 511 of the support shaft 34, and the portion on the upward A1 side of the flange portion 25 is separated from the support shaft 34. By inserting the insertion portion 511 of the support shaft 34 into the shaft hole 21 of the drum 11, the position of the drum 11 can be determined with respect to the drum housing 13.

[0051] Next, the shaft hole 21 of the drum 11 is pushed into the support shaft 34 of the drum housing 13. As a result, as shown in FIG. 12B, the flange portion 25 of the drum 11 abuts against the claw portion 54, and the flange portion 25 moves downward A2 along the inclined surface 54a of the claw portion 54.

[0052] When the shaft hole 21 is further pushed into the support shaft 34 from the state of FIG. 12B, the flange portion 25 further moves along the inclined surface 54a, and the flange portion 25 gets over the claw portion 54 and moves to the bottom surface 42 side. As shown in FIG. 12C, the flange portion 25 is positioned so as to face the second shaft portion 52. Further, the portion on the upward A1 side of the flange portion 25 of the drum 11 moves to a position facing the second shaft portion 52 while sliding on the tapered portion 53.

[0053] Next, the drive unit 5 can be assembled by fastening the motor housing 14 in which the motor 12 is disposed to the drum housing 13.

[0054] As shown in FIGS. 12A to 12C, in the window regulator 1 of the present embodiment, the drum 11 can be attached to the drum housing 13 without being largely inclined with respect to the drum housing 13.

[0055] (Features, etc.) In the window regulator 1 of the present embodiment, even when the claw portion 54 is provided on the support shaft 34 to which the drum 11 is attached in order to suppress the detachment of the drum 11, the drum 11 can be attached to the support shaft 34 through the small diameter portion 61. Therefore, the inclination of the drum 11 when attaching the drum 11 to the drum housing 13 can be reduced. Further, by disposing the flange portion 25 of the drum 11 on the second shaft portion 52 of the support shaft 34 of the drum housing 13, the rotational stability of the drum 11 can be improved.

[0056] In the window regulator 1 of the present embodiment, the claw portion 54 is disposed on the outer surface 51a on the side opposite to the direction in which the tension of the cables 6 and 7 acts on the drum 11 of the first shaft portion 51.

[0057] Thus, since the claw portion 54 is provided at a portion where the drum 11 is likely to separate from the drum housing 13 due to the action of the tension, it is possible to effectively suppress the drum 11 from detaching from the drum housing 13.

[0058] In the window regulator 1 of the present embodiment, at least a part of the small diameter portion 61 of the first shaft portion 51 is provided on the outer surface portion 61a on the side opposite to the central axis 34o of the support shaft 34 and the outer surface portion 51b where the claw portion 54 of the first shaft portion 51 is disposed.

[0059] Thereby, the drum 11 can be attached to the drum housing 13 while reducing the inclination with respect to the drum housing 13.

[0060] In the window regulator 1 of the present embodiment, the claw portion 54 has an inclined surface 54a inclined from the tip side of the support shaft 34 toward the bottom surface 42 side, and the bottom surface 42 side of the inclined surface 54a is located at a position radially outward from the central axis 34o of the support shaft 34 compared to the tip side.

[0061] Thereby, when attaching the drum 11 to the drum housing 13, the flange portion 25 of the drum 11 can move to a position facing the second shaft portion 52 while sliding on the inclined surface 54a, making it easier to attach.

[0062] In the window regulator 1 of the present embodiment, the support shaft 34 further has a tapered portion 53 that connects the first shaft portion 51 and the second shaft portion 52.

[0063] Thereby, when the drum 11 is attached to the drum housing 13, the flange portion 25 of the drum 11 can move to a position facing the second shaft portion 52 while sliding on the tapered portion 53, making the attachment easier.

[0064] In the window regulator 1 of the present embodiment, when the length from the outer surface portion 61a of the first shaft portion 51 to the end of the claw portion 54 passing through the central axis 34o of the second shaft portion 52 and perpendicular to the central axis 34o is X, and the outer diameter of the second shaft portion 52 is Y, 1.08 ≦ Y / X ≦ 1.2 is satisfied.

[0065] Thereby, the drum 11 can be attached to the bottom surface 42 of the drum housing 13 without being greatly inclined, making the attachment easier.

[0066] In the window regulator 1 of the present embodiment, the length from the outer surface portion 51b of the first shaft portion 51 where the claw portion 54 is disposed to the central axis 34o is the same as the length from the outer surface 52a of the second shaft portion 52 to the central axis 34o. The length from the outer surface portion 61a of the first shaft portion 51 on the side opposite to the claw portion 54 across the central axis 34o to the central axis 34o is shorter than the length from the outer surface 52a of the second shaft portion 52 to the central axis 34o, and the outer surface portion 61a is disposed on the side in the direction in which the cable tension of the first shaft portion 51 acts.

[0067] Thereby, even when the claw portion 54 for preventing the drum 11 from detaching is provided when the drum 11 is attached to the drum housing 13, the drum 11 can be attached to the drum housing 13 without being greatly inclined. By disposing the flange portion 25 of the drum 11 on the second shaft portion 52 of the support shaft 34 of the drum housing 13, the rotational stability of the drum 11 can be improved.

[0068] In the window regulator 1 of the present embodiment, the length of the first shaft portion 51 in the direction along the central axis 34o of the second shaft portion 52 is longer than the length of the second shaft portion 52.

[0069] Accordingly, when attaching the drum 11 to the drum housing 13, the small-diameter portion 61 serves as a guide, making it easy to attach.

[0070] In the window regulator 1 of the present embodiment, the first shaft portion 51 has an insertion portion 511 on the side opposite to the bottom surface 42 with the claw portion 54 interposed therebetween.

[0071] Accordingly, when attaching the drum 11 to the drum housing 13, the shaft hole 21 of the drum can be inserted into the tip portion of the small-diameter portion 61, making it easy to perform positioning.

[0072] (Other embodiments) Although one embodiment of the present disclosure has been described above, the present disclosure is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present disclosure.

[0073] (A) In the above embodiment, as an example of the object moving device, the window regulator 1 that moves the window glass as an object has been described as an example. However, the present disclosure is not limited thereto, and the present disclosure can be applied to any device that drives an object by winding and feeding out a cable by a drum.

[0074] (B) In the above embodiment, the inclined portion 42a is formed around the support shaft 34 of the bottom surface 42. However, the inclined portion 42a may not be formed.

[0075] (C) In the above embodiment, when the support shaft 34 of the drum housing 13 is inserted into the shaft hole 21 of the drum 11, the flange portion 25 and the support shaft 34 do not bend. However, the support shaft 34, the shaft hole 21, and the flange portion 25 may be configured such that the flange portion 25 or the support shaft 34 bends.

[0076] (D) In the above embodiment, the flange portion 25 is provided at the end on the surface 22 side of the shaft hole 21, but it is not limited thereto, and it may be provided in the middle in the thickness direction C of the first shaft hole portion 211.

[0077] (E) In the above embodiment, the cross-sectional shape of the small-diameter portion 61 of the cylindrical first shaft portion 51 is fan-shaped, but the line connecting the position P2 and the position P3 may be a straight line, and the cross-sectional shape from the position P2 to the position P3 including the position P1 and centered on the central axis 34o may be substantially triangular.

Industrial Applicability

[0078] The object moving device of the present disclosure has an effect of reducing the inclination of the drum when attached to the drum housing and suppressing the detachment of the drum from the drum housing, and is useful for a window regulator or the like.

Explanation of Reference Numerals

[0079] 1: Window regulator, 2: Guide rail, 3: Carrier plate, 4: Cable guide, 5: Driving part, 6: Cable, 7: Cable, 11: Drum, 12: Motor, 13: Drum housing, 14: Motor housing, 21: Shaft hole, 21a: Inner peripheral surface, 21o: Central axis, 22: Surface, 23: Surface, 24: Side surface, 24a: Groove, 25: Flange portion, 25a: Inclined surface, 31: Mounting part, 32: Connecting part, 33: Accommodating part, 34: Support shaft, 34o: Central axis, 35: Cable outlet, 36: Cable outlet, 41: Side wall part, 42: Bottom surface, 42a: Inclined part, 51: First shaft part, 51a: Outer surface, 51b: Outer surface part, 52: Second shaft part, 52a: Outer surface, 53: Taper part, 54: Claw part, 54a: Inclined surface, 61: Small-diameter part, 61a: Outer surface part, 211: First shaft hole part, 212: Second shaft hole part, 411: First side wall part, 412: Second side wall part, 511: Insertion part, W: Window glass

Claims

1. A moving member attached to an object to be moved, A cable connected to the moving member, A drum having a shaft hole at the center for winding or unwinding the cable, A drum housing for rotatably accommodating the drum, and comprising: The moving member is pulled by the cable and moves as the drum winds up, The drum housing protrudes from the bottom surface of the accommodating portion that accommodates the drum and has a support shaft inserted into the shaft hole of the drum, The support shaft, A first shaft portion disposed on the tip side, A second shaft portion disposed on the bottom surface side rather than the first shaft portion, And a protruding portion disposed on the side surface of the first shaft portion, At least a part of the first shaft portion has a small-diameter portion where the length from the central axis of the support shaft of the first shaft portion to the side surface is shorter than the length from the central axis of the support shaft of the second shaft portion to the side surface, The drum has a flange portion formed from the inner peripheral surface of the shaft hole toward the center of the shaft hole, and is attached to the support shaft such that the flange portion faces the second shaft portion, An object moving device.

2. The protruding portion is disposed on the side surface of the first shaft portion on the side opposite to the direction in which the tension of the cable acts on the drum, The object moving device according to Claim 1.

3. At least a part of the small-diameter portion of the first shaft portion is provided on the side surface opposite to the side surface where the protruding portion of the first shaft portion is disposed and the central axis of the support shaft, The object moving device according to Claim 1.

4. The protruding portion has an inclined surface inclined from the tip side to the bottom surface side of the support shaft, and the bottom surface side of the inclined surface is located at a position radially outward from the center of the support shaft rather than the tip side, The object moving device according to Claim 1.

5. The support shaft further has a tapered portion connecting the first shaft portion and the second shaft portion, The object moving device according to Claim 1.

6. When the length from the side surface of the first shaft portion to the end of the protruding portion passing through the central axis of the second shaft portion and perpendicular to the central axis is X, and the outer diameter of the second shaft portion is Y, 1.08 ≦ Y / X ≦ 1.2 is satisfied, The object moving device according to Claim 1.

7. The length from the first outer surface portion where the protruding portion is disposed of the first shaft portion to the central axis of the second shaft portion is the same as the length from the outer surface of the second shaft portion to the central axis, The length from the second outer surface portion of the first shaft portion, which is on the side opposite to the protruding portion with respect to the central axis, to the central axis is shorter than the length from the outer surface of the second shaft portion to the central axis. The second outer surface portion is disposed on the side in the direction in which the cable tension of the first shaft portion acts. The object moving device according to claim 1.

8. The length of the first shaft portion in the direction along the central axis of the second shaft portion is longer than the length of the second shaft portion. The object moving device according to claim 1.

9. The first shaft portion has an insertion portion on the side opposite to the bottom surface with respect to the protruding portion. The object moving device according to claim 1.

10. A carrier plate for holding a window glass; A cable having one end connected to the carrier plate and pulling the carrier plate in a predetermined direction; A cable guide for changing the direction of the cable; A drum that is connected to the other end of the cable and winds or unwinds the cable wound around the cable guide; A drum housing for housing the drum, and The drum housing has a support shaft that protrudes from the bottom surface and is inserted into the shaft hole of the drum. The support shaft A first shaft portion disposed on the tip side; A second shaft portion disposed on the bottom surface side with respect to the first shaft portion; And a protruding portion disposed on the side surface of the first shaft portion. The first shaft portion has a small-diameter portion at least partially, and the length from the central axis of the support shaft of the first shaft portion to the side surface is shorter than the length from the central axis of the support shaft of the second shaft portion to the side surface. The drum has a flange portion formed from the inner peripheral surface of the shaft hole toward the center of the shaft hole, and the flange portion is attached to the support shaft so as to face the second shaft portion. Window regulator.

Images