pulley device

Abstract

Provided is a belt wheel device capable of extending a maintenance period. A front-side belt wheel device (30) changes a moving direction of a closed-side cable (22) driven by a driving source, and includes: a belt wheel housing (31) fixed to a main body panel (11a); a first belt wheel housing portion and a second belt wheel housing portion provided inside the belt wheel housing (31); a first belt wheel shaft (PS1) and a second belt wheel shaft (PS2) provided in the first belt wheel housing portion and the second belt wheel housing portion, respectively; a first belt wheel and a second belt wheel rotatably supported on the first belt wheel shaft (PS1) and the second belt wheel shaft (PS2), respectively, for winding the closed-side cable (22); and a first cable entry hole (HL1) and a second cable entry hole (HL2) provided in the belt wheel housing (31) to communicate the inside and outside of the belt wheel housing (31).

Description

Technical Field

[0001] This invention relates to a pulley device for changing the direction of cable movement. Background Technology

[0002] On the side of a one-box vehicle or similar vehicle, a sliding door is provided, which moves in the longitudinal direction of the vehicle to open and close its opening. The sliding door moves along a guide rail via a vehicle opening and closing device. Such a vehicle opening and closing device is described, for example, in Patent Document 1.

[0003] The vehicle opening and closing device described in Patent Document 1 is a cable-driven vehicle opening and closing device, in which a sliding door is opened and closed by driving a cable through a drive device. Furthermore, the vehicle opening and closing device described in Patent Document 1 includes a pulley unit that changes the direction of cable movement in order to guide the cable along a guide rail.

[0004] [Existing technical documents]

[0005] [Patent Literature]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2020-084605 Summary of the Invention

[0007] [The problem the invention aims to solve]

[0008] In the pulley unit described in Patent Document 1, a pulley and a guide plate are used to change the direction of cable movement, and the cable moves while rubbing against the guide plate. Therefore, there is a concern that the resin film covering the surface of the cable will wear out prematurely, resulting in a shorter maintenance cycle.

[0009] The purpose of this invention is to provide a pulley device that can extend the maintenance cycle.

[0010] [Technical means to solve the problem]

[0011] In one embodiment of the invention, a pulley device is provided for changing the direction of movement of a cable driven by a drive source, and includes: a pulley housing fixed to an object to be installed; a plurality of pulley receiving portions disposed inside the pulley housing; pulley shafts respectively disposed in the plurality of pulley receiving portions; a plurality of pulleys rotatably supported on the plurality of pulley shafts for winding the cable; and a pair of cable inlet / outlet holes disposed in the pulley housing to communicate between the inside and outside of the pulley housing.

[0012] [The effects of the invention]

[0013] According to the present invention, a pulley device capable of extending the maintenance cycle can be realized. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a vehicle equipped with a powered sliding door system.

[0015] Figure 2 It means Figure 1 A three-dimensional view of the power sliding door device.

[0016] Figure 3 This is a perspective view illustrating the mounting structure of the front side pulley assembly onto the main panel.

[0017] Figure 4 This is a three-dimensional view of the front pulley assembly viewed from the left and rear sides.

[0018] Figure 5 This is a perspective view of the front pulley assembly viewed from the right and rear sides.

[0019] Figure 6 This is a diagram showing the front pulley assembly viewed from above.

[0020] Figure 7 This is a diagram showing the front pulley assembly viewed from the rear.

[0021] Figure 8 It is a three-dimensional view showing the details of the inner side of the base component.

[0022] Figure 9 It is a three-dimensional view showing the details of the inner side of the cover component.

[0023] Figure 10 This is a three-dimensional diagram illustrating the cable configuration inside the pulley housing.

[0024] Explanation of icon numbers

[0025] 10: Vehicles

[0026] 11: Vehicle body

[0027] 11a: Main panel (object to be installed)

[0028] 12: Opening

[0029] 13: Sliding door

[0030] 14: Guide rail

[0031] 14a: Straight section

[0032] 14b: Bend

[0033] 15: Roller Assembly

[0034] 20: Powered sliding door device

[0035] 21: Open-side cable

[0036] 21a: Open-side cable end

[0037] 22: Closed-side cable (cable)

[0038] 22a: Closed-side cable end

[0039] 23: Driver Source

[0040] 23a: Motor section

[0041] 23b: Drive unit

[0042] 23c: Roller

[0043] 23d: Outer shell

[0044] 23e: Tensioner mechanism

[0045] 24: Rear side pulley device

[0046] 30: Front side pulley assembly (pulley assembly)

[0047] 31: Pulley housing

[0048] 32: Base components

[0049] 32a: Base side bottom wall

[0050] 32b: Side wall portion of the base

[0051] 32c: Engaging claw portion

[0052] 32d: Base side fixing recess

[0053] 32e: Fixed part

[0054] 32f: Bolt insertion hole

[0055] 32g: First pulley containment section (pulley containment section)

[0056] 32h: Base side shaft fixing hole

[0057] 32k: Shaft support protrusion

[0058] 32m: Shaft fixing hole

[0059] 32n: Second pulley containment section (pulley containment section)

[0060] 33: Cover component

[0061] 33a: Side plate portion

[0062] 33b: Outer edge

[0063] 33c: Engaging protrusion

[0064] 33d: Cover side fixing recess

[0065] 33e: First pulley cover

[0066] 33f: Side shaft fixing hole

[0067] 33g: Second pulley cover

[0068] AS: Passenger seat

[0069] C1, C2: Axis

[0070] DR: Driver's Seat

[0071] DS: Dead Zone

[0072] FL: Floor

[0073] G: Cable tray

[0074] HL1: First cable inlet / outlet (cable inlet / outlet)

[0075] HL2: Second cable inlet / outlet (cable inlet / outlet)

[0076] M1, M2, M3, M4: Arrows

[0077] P1, P2: Extension amount

[0078] PR1: First pulley (pulley)

[0079] PR2: Second pulley (pulley)

[0080] PS1: First pulley axle (pulley axle)

[0081] PS2: Second pulley axle (pulley axle)

[0082] R: Grease receiving recess

[0083] RS: Rear Seat

[0084] SF1: Inner side of the base

[0085] SF2: Outer side of the base

[0086] SF3: Inner side of the cover

[0087] SF4: Outer side of the cover Detailed Implementation

[0088] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0089] Figure 1 This is a schematic diagram of a vehicle equipped with a powered sliding door system. Figure 2 It means Figure 1 A three-dimensional view of the power sliding door device.

[0090] <Overview of Sliding Doors>

[0091] Figure 1 The vehicle 10 shown is a single-box vehicle. A relatively large opening 12 is provided on the side of the vehicle body 11 forming the vehicle 10 for passengers to board and alight, or for loading and unloading goods. The opening 12 is opened and closed via a sliding door 13 that moves in the longitudinal direction of the vehicle body 11. Here, the sliding door 13 can move along a guide rail 14 fixed to the side of the vehicle body 11.

[0092] like Figure 1 and Figure 2 As shown, the guide rail 14 is fixed to the rear side of the opening 12 at approximately the center of the vehicle body 11 in the vertical direction. Moreover, the guide rail 14 includes: a straight portion 14a extending in the longitudinal direction of the vehicle body 11; and a curved portion 14b curving from the front side of the straight portion 14a toward the interior side (left side) of the vehicle.

[0093] Additionally, a roller assembly 15 is provided on the rear side of the sliding door 13. The roller assembly 15 is movably mounted on the guide rail 14. Then, the roller assembly 15 moves along the guide rail 14 in the front-rear direction of the vehicle body 11, thereby opening and closing the opening 12 of the sliding door 13.

[0094] Specifically, when the roller assembly 15 moves to the rear side of the straight section 14a of the guide rail 14, the sliding door 13 is in the open state (see reference). Figure 1 (Solid line). Additionally, when the roller assembly 15 moves towards the front of the curved portion 14b of the guide rail 14, the sliding door 13 is pulled into the interior of the vehicle, closing (see reference). Figure 1 (The double-dotted line).

[0095] Furthermore, the vehicle body 11 is equipped with a power sliding door device 20 to automatically open and close the sliding door 13.

[0096] Here, the side of vehicle body 11 with the driver's seat DR is defined as the "right side," and the side with the passenger seat AS is defined as the "left side." Furthermore, the side of vehicle body 11 with both the driver's seat DR and passenger seat AS is defined as the "front side," and the side with the rear seat RS is defined as the "rear side." Moreover, the side of vehicle body 11 with the floor FL is defined as the "lower side," and the side with the roof panel (not shown) is defined as the "upper side."

[0097] <Powered sliding door device>

[0098] The power sliding door device 20 includes an opening cable 21 connected to the rear side of the roller assembly 15 and a closing cable 22 connected to the front side of the roller assembly 15. That is, the power sliding door device 20 is a cable-operated automatic opening and closing device. Furthermore, the power sliding door device 20 has a drive source 23 that drives the opening cable 21 and the closing cable 22. The drive source 23 is located approximately at the center of the guide rail 14 along its long side and inside the vehicle interior. Therefore, the drive source 23 is not exposed to wind and rain.

[0099] The open-side cable 21, extending rearward from the drive source 23, is redirected to the front direction via a rear-side pulley assembly 24 located on the rear side of the guide rail 14. The front end of the open-side cable 21 connects to the roller assembly 15 from the rear side of the guide rail 14. Conversely, the closed-side cable 22, extending forward from the drive source 23, is redirected to the rear direction via a front-side pulley assembly 30 located on the front side of the guide rail 14. The front end of the closed-side cable 22 connects to the roller assembly 15 from the front side of the guide rail 14.

[0100] like Figure 2 As shown, the drive source 23 includes a motor unit 23a and a drive unit 23b. The drive unit 23b drives the open-side cable 21 and the closed-side cable 22 by driving the motor unit 23a. In addition, the motor unit 23a can rotate its rotation axis (not shown) in both directions by switching the power-on state.

[0101] Additionally, the drive unit 23b includes a roller 23c, which has grooves for the open-side cable 21 and the closed-side cable 22 to be wound around, respectively. Specifically, the base ends of the open-side cable 21 and the closed-side cable 22 are fixed on the roller 23c, and the open-side cable 21 and the closed-side cable 22 are wound around the grooves of the roller 23c in opposite directions.

[0102] Therefore, when roller 23c rotates clockwise, the open-side cable 21 is wound around roller 23c, and the closed-side cable 22 is discharged from roller 23c. Consequently, the sliding door 13 is pulled backward to open. Conversely, when roller 23c rotates counterclockwise, the closed-side cable 22 is wound around roller 23c, and the open-side cable 21 is discharged from roller 23c. Consequently, the sliding door 13 is pulled forward to close.

[0103] Here, between the drive unit 23b and the rear pulley assembly 24 and the front pulley assembly 30, housings 23d are respectively provided to guide the movement of the open-side cable 21 and the closed-side cable 22. Lubricants such as grease (not shown) are applied inside these housings 23d. Therefore, the open-side cable 21 and the closed-side cable 22 can move smoothly respectively.

[0104] Furthermore, in the drive unit 23b, tensioner mechanisms 23e are provided corresponding to the open-side cable 21 and the closed-side cable 22, respectively. These tensioner mechanisms 23e have the function of applying a certain tension to the open-side cable 21 and the closed-side cable 22. As a result, even if the open-side cable 21 and the closed-side cable 22 elongate due to changes in time, their slack can be eliminated.

[0105] <Front Side Pulley Assembly>

[0106] Next, the detailed structure of the front-side pulley device 30 to which the present invention is applied will be described with reference to the accompanying drawings. However, the present invention is not limited to the front-side pulley device 30, but can also be applied to the rear-side pulley device 24. Furthermore, the front-side pulley device 30 is equivalent to the pulley device in the present invention.

[0107] Figure 3 This is a perspective view illustrating the mounting structure of the front side pulley assembly onto the main panel. Figure 4 This is a three-dimensional view of the front pulley assembly viewed from the left and rear sides. Figure 5 This is a perspective view of the front pulley assembly viewed from the right and rear sides. Figure 6 This is a diagram showing the front pulley assembly viewed from above. Figure 7 This is a diagram showing the front pulley assembly viewed from the rear. Figure 8 It is a three-dimensional view showing the details of the inner side of the base component. Figure 9 It is a three-dimensional view showing the details of the inner side of the cover component. Figure 10 This is a three-dimensional diagram illustrating the cable configuration inside the pulley housing.

[0108] like Figures 3 to 5 As shown, the front-side pulley assembly 30 includes a pulley housing 31 forming its outer contour. The pulley housing 31 is fixed to the vehicle body 11 (see reference). Figure 1 The portion of the main panel 11a is specifically fixed to the interior side of the main panel 11a. The pulley housing 31 has a segmented structure, including a base member 32 and a cover member 33. Both the base member 32 and the cover member 33 are injection-molded articles containing resin materials such as plastic. Furthermore, the main panel 11a corresponds to the mounting object in this invention.

[0109] Furthermore, with the front pulley assembly 30 fixed to the main panel 11a, the base member 32 is disposed inside the vehicle interior, and the cover member 33 is disposed outside the vehicle exterior (right side). Specifically, the main panel 11a has a through hole (not shown) that passes through the inside and outside of the vehicle interior, and the pulley housing 31 is provided across the main panel 11a through the through hole (see reference). Figure 6 and Figure 7 ).

[0110] Furthermore, a portion of the cover member 33 on the pulley housing 31 protrudes, while the remaining portion forms a generally thin-walled, roughly box-shaped structure. This suppresses the enlargement of the front-side pulley assembly 30. Additionally, the protruding portion of the cover member 33 is positioned in the dead zone DS located on the exterior side of the main body panel 11a (see reference). Figure 3 , Figure 6 and Figure 7 )superior.

[0111] In addition, Figure 3 In this document, the diagram of driver source 23 is simplified. Additionally, in... Figures 3 to 7 and Figure 10 The illustration of the outer shell 23d is omitted in the text.

[0112] <Base Components>

[0113] like Figure 4 and Figure 8 As shown, the base member 32 includes a base side bottom wall portion 32a that extends in the vertical and horizontal directions and is formed into a plate shape. A base side inner surface SF1 is provided on the inner side (right side) of the base side bottom wall portion 32a, and a base side outer surface SF2 is provided on the outer side (left side) of the base side bottom wall portion 32a. In addition, a base side side wall portion 32b that protrudes from the base side bottom wall portion 32a to the outer side (right side) of the vehicle body at a predetermined height is integrally provided on the outer edge of the base side bottom wall portion 32a.

[0114] Furthermore, the base sidewall 32b is integrally provided with engaging protrusions 33c that hook onto the cover member 33 (see reference). Figure 9 The base member 32 and the cover member 33 are connected to each other in the width direction (left-right direction) of the vehicle body 11 and are connected in a way that prevents them from wobbling.

[0115] Additionally, on the inner side SF1 of the base side bottom wall 32a, a casing 23d (see reference) is provided. Figure 2 The base side fixing recess 32d is fixed to the end of the base. Furthermore, a pair of fixing parts 32e fixed to the main body panel 11a are integrally provided on the base side wall 32b.

[0116] A pair of fixing portions 32e provided on the base member 32 are respectively arranged facing each other in the vertical direction of the base member 32. Specifically, one (upper) fixing portion 32e protrudes upward from the base side wall portion 32b of the base member 32 at a predetermined height. The other (lower) fixing portion 32e protrudes downward from the base side wall portion 32b of the base member 32 at a predetermined height. Furthermore, the pair of fixing portions 32e are arranged in the horizontal direction of the base member 32 on the right side of the base side wall portion 32b (in...). Figure 8 The front side is the exterior side of the vehicle.

[0117] Additionally, each of the pair of fixing parts 32e is provided with a bolt insertion hole 32f that extends in the left-right direction. Fixing bolts (not shown) for fixing the front side pulley device 30 to the main body panel 11a are inserted into these bolt insertion holes 32f.

[0118] <First Wheeled Containment Department>

[0119] Furthermore, such as Figure 8 As shown, a first pulley receiving portion 32g is provided inside the base member 32 and between a pair of fixing portions 32e along the vertical direction. The first pulley receiving portion 32g is the part that rotatably receives the first pulley PR1 around which the supply and closing side cable 22 is wound, and a base side shaft fixing hole 32h is provided at approximately the center of the first pulley receiving portion 32g. One end (left end) of the first pulley shaft PS1 is fixed to the base side shaft fixing hole 32h. In addition, the other end (right end) of the first pulley shaft PS1 is fixed to the cover side shaft fixing hole 33f provided in the cover member 33 (see reference). Figure 9 Thus, a first pulley shaft PS1 is provided in the first pulley housing section 32g.

[0120] Here, both the base side shaft fixing hole 32h and the cover side shaft fixing hole 33f extend in the left-right direction along the front side pulley device 30. That is, the axis C1 of the first pulley axle PS1 fixed in these base side shaft fixing holes 32h and cover side shaft fixing holes 33f extends in the vehicle width direction (left-right direction) of the vehicle body 11.

[0121] Furthermore, the first pulley housing 32g is disposed inside the pulley housing 31, corresponding to the pulley housing in this invention. Additionally, the first pulley shaft PS1 corresponds to the pulley shaft in this invention. Furthermore, the first pulley PR1 corresponds to the pulley in this invention.

[0122] <Second Pulley Containment Department>

[0123] In addition, such as Figure 8 As shown, a pair of shaft support protrusions 32k supporting both ends of the second pulley axle PS2 are provided on the rear side of the first pulley receiving portion 32g. These shaft support protrusions 32k are arranged at predetermined intervals in the vertical direction of the front pulley assembly 30 and protrude from the inner side surface SF1 of the base side towards the outer side (right side) of the vehicle body at a predetermined height. Specifically, the protrusion height of the pair of shaft support protrusions 32k is higher than that of the side wall portion 32b of the base side. Therefore, the front end of the pair of shaft support protrusions 32k is positioned further out of the vehicle body than the pair of fixing portions 32e.

[0124] Furthermore, near the front end of each pair of shaft support protrusions 32k, shaft fixing holes 32m are respectively provided for fixing the second pulley shaft PS2 on both axial sides. Thus, the second pulley PR2, which allows the closed-side cable 22 to be wound and rotatably supported on the second pulley shaft PS2, is rotatably housed between the pair of shaft support protrusions 32k. In other words, a second pulley housing portion 32n is provided between the pair of shaft support protrusions 32k, and the second pulley shaft PS2 is housed in the second pulley housing portion 32n.

[0125] Furthermore, the second pulley housing 32n is disposed inside the pulley housing 31, corresponding to the pulley housing in this invention. Additionally, the second pulley shaft PS2 corresponds to the pulley shaft in this invention. Furthermore, the second pulley PR2 corresponds to the pulley in this invention.

[0126] Here, each shaft fixing hole 32m extends vertically along the front side pulley assembly 30. That is, the axis C2 of the second pulley shaft PS2, which is fixed in a pair of shaft fixing holes 32m, extends vertically along the front side pulley assembly 30.

[0127] Therefore, when viewing the first pulley shaft PS1 and the second pulley shaft PS2 from the front-side pulley assembly 30 in the front-rear direction, the angle they form with each other is 90 degrees (right angle) (see reference). Figure 7 Thus, the first pulley shaft PS1, configured on axis C1, and the second pulley shaft PS2, configured on axis C2, extend in opposite directions. Specifically, the first pulley shaft PS1 and the second pulley shaft PS2 are in a "torsional position" that are neither parallel to each other nor intersecting.

[0128] By configuring the first pulley axle PS1 and the second pulley axle PS2 in this way, as follows: Figure 5 , Figure 6 and Figure 10 As shown, the first pulley shaft PS1 and the second pulley shaft PS2 are positioned close to each other, without requiring the closed-side cable 22 to be forcibly bent and wound around the first pulley shaft PS1 and the second pulley shaft PS2. Furthermore, in the left-right direction (vehicle width direction) of the front pulley assembly 30, the first cable inlet / outlet HL1 and the second cable inlet / outlet HL2 can be positioned close to each other, and the second cable inlet / outlet HL2 on the side where the sliding door 13 is located can be close to the main body panel 11a. Therefore, the configuration space of the front pulley assembly 30 can be reduced (space saving).

[0129] Here, assuming that the first pulley PR1 is removed and only the second pulley PR2 is provided, the second cable inlet / outlet HL2 is configured on a pair of shaft support protrusions 32k (refer to...). Figure 8 The portion near the front end of the closed-side cable 22. Therefore, the closed-side cable 22 becomes... Figure 6The arrangement shown by the double-dotted line allows for a larger configuration space for the front pulley device 30 in this closed-side cable 22 configuration. Furthermore, the closed-side cable 22 corresponds to the cable in this invention.

[0130] In addition, the pulley housing 31 is formed by a base member 32 fixed to the main panel 11a and a cover member 33 covering the base member 32. A first pulley receiving portion 32g and a second pulley receiving portion 32n are provided on the base member 32.

[0131] Therefore, for example, compared to the case where the first pulley receiving portion 32g and the second pulley receiving portion 32n are respectively provided on different components, the configuration accuracy of the first pulley receiving portion 32g and the second pulley receiving portion 32n can be improved. That is, the configuration accuracy of the first pulley shaft PS1 (first pulley PR1) and the second pulley shaft PS2 (second pulley PR2) can be improved. As a result, the generation of abnormal noise during the operation of the front pulley assembly 30 is suppressed, thereby improving quietness.

[0132] <Cover Components>

[0133] like Figure 5 and Figure 9 As shown, the cover member 33 covers the base-side inner surface SF1 side of the base member 32, and includes a cover-side flat plate portion 33a that extends in the vertical and horizontal directions and is formed into a plate shape. A cover-side inner surface SF3 is provided on the inner side (left side) of the cover-side flat plate portion 33a, and a cover-side outer surface SF4 is provided on the outer side (right side) of the cover-side flat plate portion 33a.

[0134] Here, the cover-side flat plate portion 33a is different from the base-side bottom wall portion 32a of the base member 32 (see reference). Figure 8 The wall thickness is such that a total of four engaging protrusions 33c are integrally provided on the outer edge 33b of the cover side plate portion 33a. A total of four engaging claw portions 32c provided on the side wall portion 32b of the base are hooked onto these engaging protrusions 33c respectively.

[0135] Additionally, on the inner surface SF3 side of the cover-side flat plate portion 33a, a fixing recess 32d for fixing to the base side is provided (see reference). Figure 8 ) Facing each other and supplying the outer casing 23d (refer to) Figure 2 ), the cover side fixing recessed portion 33d is fixed at the end.

[0136] Here, the base-side fixing recess 32d and the cover-side fixing recess 33d for fixing the end of the housing 23d are arranged on the drive source 23 side of the front pulley device 30, and form a first cable inlet / outlet hole HL1 for the closed-side cable 22 to enter and exit relative to the pulley housing 31.

[0137] <First Pulley Cover Section>

[0138] Furthermore, such as Figure 9 As shown, a first pulley cover portion 33e is provided inside and on the front side of the cover member 33. The first pulley cover portion 33e covers the first pulley receiving portion 32g (see reference) from the right side of the front pulley assembly 30. Figure 8 Furthermore, a cover-side shaft fixing hole 33f is provided at approximately the center of the first pulley cover portion 33e for fixing the other end (right end) of the first pulley shaft PS1. Thus, the axial sides of the first pulley shaft PS1 are respectively fixed to the base member 32 and the cover member 33 of the pulley housing 31.

[0139] <Second Pulley Cover>

[0140] In addition, such as Figure 9 As shown, a second pulley cover 33g is provided on the rear side of the first pulley cover 33e. The second pulley cover 33g covers the second pulley receiving portion 32n (see reference) from the right side of the front pulley assembly 30. Figure 8 Specifically, the second pulley cover 33g is designed to cover a pair of shaft support protrusions 32k (see reference 32k) provided in the base member 32. Figure 8 The second pulley cover 33g protrudes to the right side of the front pulley assembly 30 from the outer side of the cover plate portion 33a at a predetermined height. As a result, a pair of shaft support protrusions 32k, the second pulley shaft PS2, and the second pulley PR2 are covered by the second pulley cover portion 33g.

[0141] Furthermore, such as Figure 5 As shown, a second cable inlet / outlet hole HL2 is provided in the second pulley cover portion 33g. The second cable inlet / outlet hole HL2 is disposed on the roller assembly 15 of the front side pulley device 30 (see reference). Figure 2 ( ) side, and becomes the opening for the closed-side cable 22 to enter and exit relative to the pulley housing 31.

[0142] Thus, the front-side pulley assembly 30 is provided with a first cable inlet / outlet hole HL1 and a second cable inlet / outlet hole HL2 that connect the inside and outside of the pulley housing 31. Furthermore, the first cable inlet / outlet hole HL1 and the second cable inlet / outlet hole HL2 respectively connect the inside and outside of the pulley housing 31, equivalent to the cable inlet / outlet holes in this invention.

[0143] Here, as Figure 6 and Figure 7 As shown, with the front side pulley device 30 fixed to the main panel 11a, the first pulley shaft PS1 is arranged on one side of the main panel 11a (the left side in the vehicle width direction is the interior side) with the pulley housing 31 (a pair of fixing parts 32e) as the center, and the second pulley shaft PS2 is arranged on the other side of the main panel 11a (the right side in the vehicle width direction is the exterior side).

[0144] Therefore, the second pulley PR2 side (extension P1) of the front pulley assembly 30 can be positioned in the dead zone DS on the exterior (right) side of the main body panel 11a. On the other hand, the first pulley PR1 side (extension P2) of the front pulley assembly 30 is positioned on the interior (left) side of the main body panel 11a, but the extension P2 is approximately half the extension P1 (P2≒P1 / 2), thus suppressing the narrowing of the interior side.

[0145] <Pulley Structure>

[0146] like Figure 8 As shown, both the first pulley PR1 and the second pulley PR2 are identical. Furthermore, the first pulley PR1 is rotatably supported on the first pulley shaft PS1, and the second pulley PR2 is rotatably supported on the second pulley shaft PS2. These first pulleys PR1 and second pulleys PR2 are each formed in a generally disc-shaped manner, and cable grooves G are provided on their outer circumferences. The closed-side cable 22 enters the cable grooves G of the first pulley PR1 and the second pulley PR2 in a bent state.

[0147] Furthermore, multiple grease-receiving recesses R are provided on the inner periphery of the first pulley PR1 and the second pulley PR2, facing the outer periphery of the first pulley shaft PS1 and the second pulley shaft PS2. These grease-receiving recesses R contain a predetermined amount of lubricant or other lubricant (not shown). In other words, the grease-receiving recesses R function as so-called "grease storage sections." As a result, the first pulley PR1 and the second pulley PR2 can rotate smoothly relative to the first pulley shaft PS1 and the second pulley shaft PS2 over a long period.

[0148] <Cable Structure>

[0149] Furthermore, such as Figure 4 and Figure 5 As shown, the closed-side cable 22 wound around the first pulley PR1 and the second pulley PR2 is formed by twisting multiple fine metal wires (not shown), and its surface is covered with a protective film made of resin (not shown). This prevents the fine metal wires from rusting. Furthermore, a cylindrical (e.g., drum-shaped) closed-side cable end 22a is integrally provided on the sliding door 13 side (roller assembly 15 side) in the long side direction of the closed-side cable 22. The closed-side cable end 22a is mounted on the roller assembly 15 (see reference 15). Figure 2 (The front side of)

[0150] In addition, such as Figure 2 As shown, in the open-side cable 21, similarly to the closed-side cable 22, an open-side cable end 21a is integrally provided on its sliding door 13 side (roller assembly 15 side). Furthermore, the open-side cable end 21a is mounted on the roller assembly 15 (see reference 15). Figure 2 The back side of ).

[0151] Assembly sequence

[0152] Next, the assembly sequence of the front side pulley assembly 30 formed as described above will be explained in detail using the accompanying drawings. Furthermore, the assembly sequence shown below is an example, and other sequences may also be used.

[0153] First, such as Figure 8 As shown, one end of the first pulley shaft PS1 is inserted into the base side shaft fixing hole 32h for fixation. Then, as... Figure 10 As shown by arrows M1 and M2, the closed-side cable 22 is wound into the cable groove G of the first pulley PR1, and the first pulley PR1 is mounted on the first pulley shaft PS1. At this time, a predetermined amount of grease is applied to the grease-receiving recess R. Additionally, as... Figure 10 As indicated by arrow M3, the closed-side cable 22 is positioned between a pair of shaft support protrusions 32k.

[0154] Then, a second pulley PR2 is inserted between a pair of shaft support protrusions 32k, and the closed-side cable 22 is wound around the cable groove G of the second pulley PR2. Furthermore, the axis of the second pulley PR2 and the axis of the pair of shaft fixing holes 32m are respectively arranged coaxially. Moreover, a second pulley shaft PS2 is installed in the pair of shaft fixing holes 32m that include the inner circumference of the second pulley PR2.

[0155] Next, prepare cover component 33 (refer to...) Figure 5 and Figure 9 Then, as Figure 10 As indicated by arrow M4, while stretching the closed-side cable 22 (closed-side cable end 22a), the closed-side cable 22 is inserted from the inner side of the cover SF3 toward the outer side of the cover SF4 into the second cable inlet / outlet hole HL2 of the cover member 33.

[0156] Then, the inner surface SF1 of the base member 32 on the base side is aligned with the inner surface SF3 of the cover member 33 on the cover side, and the cover side shaft fixing hole 33f of the cover member 33 is arranged on the axis of the first pulley shaft PS1 (see reference). Figure 9 Then, the other end of the first pulley shaft PS1 is inserted into the side shaft fixing hole 33f for fixation. Next, the four engaging claws 32c are hooked onto the four engaging protrusions 33c.

[0157] Thus, the assembly of the front side pulley device 30 is completed.

[0158] As described in detail above, according to this embodiment, a front-side pulley device 30 converts the movement direction of a closed-side cable 22 driven by a drive source 23, and includes: a pulley housing 31 fixed to a main body panel 11a; a first pulley receiving portion 32g and a second pulley receiving portion 32n disposed inside the pulley housing 31; a first pulley shaft PS1 and a second pulley shaft PS2 respectively disposed in the first pulley receiving portion 32g and the second pulley receiving portion 32n; a first pulley PR1 and a second pulley PR2 respectively rotatably supported on the first pulley shaft PS1 and the second pulley shaft PS2 for winding the closed-side cable 22; and a first cable inlet / outlet hole HL1 and a second cable inlet / outlet hole HL2 disposed in the pulley housing 31, so that the inside and outside of the pulley housing 31 are connected.

[0159] Therefore, the direction of movement of the closed-side cable 22 can be changed by rotating the first pulley PR1 and the second pulley PR2 as the closed-side cable 22 moves. This eliminates friction on the closed-side cable 22 and prevents wear on its surface. Consequently, the front pulley assembly 30 can operate smoothly for a long period, extending the maintenance cycle of the front pulley assembly 30 (powered sliding door assembly 20).

[0160] Furthermore, according to this embodiment, the first pulley shaft PS1 and the second pulley shaft PS2 are located in a position of mutual torsion.

[0161] This allows the first pulley PR1 and the second pulley PR2 to be positioned close to each other, and allows the closed-side cable 22 to be wound around the first pulley PR1 and the second pulley PR2 without being forcibly bent (see reference). Figure 10 Additionally, in the left-right direction of the front side pulley assembly 30, the first cable inlet / outlet HL1 and the second cable inlet / outlet HL2 can be arranged close to each other (see reference). Figure 6 Therefore, smooth operation of the front side pulley device 30 can be ensured, and the configuration space is reduced, thus saving space.

[0162] Furthermore, according to this embodiment, the pulley housing 31 is provided across the main body panel 11a, the first pulley shaft PS1 is disposed on one side (left side) of the main body panel 11a, and the second pulley shaft PS2 is disposed on the other side (right side) of the main body panel 11a.

[0163] Therefore, the second pulley PR2 side (extension P1) of the front pulley assembly 30 can be positioned in the dead zone DS located on the exterior (right) side of the main body panel 11a. Thus, the extension P2 of the front pulley assembly 30 into the interior can be suppressed, and the narrowing of the interior can be prevented.

[0164] In addition, according to this embodiment, the pulley housing 31 includes: a base member 32 fixed to the main body panel 11a; and a cover member 33 covering the base member 32, wherein a first pulley receiving portion 32g and a second pulley receiving portion 32n are provided on the base member 32.

[0165] This improves the configuration accuracy of the first pulley housing 32g and the second pulley housing 32n, thereby improving the configuration accuracy of the first pulley PR1 containing the first pulley shaft PS1 and the second pulley PR2 containing the second pulley shaft PS2. Consequently, abnormal noise during the operation of the front pulley assembly 30 can be suppressed, thus improving noise reduction.

[0166] Furthermore, according to the implementation method, the maintenance cycle of the front side pulley device 30 can be extended, thus enabling labor-saving reduction of energy required for disassembly or reassembly operations. Therefore, it is possible to achieve, in particular, Goal 7 (ensuring access to affordable, reliable and sustainable modern energy for all) and Goal 13 (taking urgent action to address climate change and its impacts) of the United Nations Sustainable Development Goals (SDGs).

[0167] This invention is not limited to the described embodiments, and various modifications can be made without departing from its spirit. For example, in the described embodiment, a form is shown in which a first pulley receiving portion 32g and a second pulley receiving portion 32n are provided inside the pulley housing 31, that is, a form including a first pulley PR1 and a second pulley PR2. However, this invention is not limited to this and can also be applied to a form in which three or more pulleys are provided inside the pulley housing.

[0168] Furthermore, in the above embodiment, the form of the front side pulley device 30 of the power sliding door device 20 with the drive source 23 fixed to the vehicle body 11 is shown. However, the present invention is not limited to this and can also be applied to the pulley device of the power sliding door device with the drive source fixed inside the sliding door 13.

[0169] In addition, the material, shape, size, quantity, and location of each component in the above embodiments are arbitrary as long as they achieve the present invention, and are not limited to the above embodiments.

Claims

1. A pulley device for changing the direction of movement of a cable driven by a drive source, the pulley device comprising: The pulley housing is fixed to the object being installed. Multiple pulley housings are disposed inside the pulley housing; Each pulley shaft is disposed in one of the multiple pulley receiving portions; Multiple pulleys are rotatably supported on multiple pulley shafts for winding the cable; as well as A pair of cable inlet / outlet holes are provided in the pulley housing, allowing the inside and outside of the pulley housing to communicate.

2. The pulley device according to claim 1, wherein, The pulley housing has: A first pulley housing section for housing the first pulley shaft; and The second pulley housing section is for housing the second pulley shaft. The first pulley shaft and the second pulley shaft are in a position of mutual torsion.

3. The pulley device according to claim 2, wherein, The pulley housing is provided across the object to be installed. The first pulley shaft is disposed on one side of the object to be installed. The second pulley shaft is located on the other side of the object being mounted.

4. The pulley device according to claim 2 or 3, wherein, The pulley housing includes: Base component, fixed to the mounting object; and Cover component, covering the base component, The base component is provided with a first pulley receiving part and a second pulley receiving part.

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