Deflection pulley device

Abstract

A deflection pulley device is provided that can extend a maintenance cycle. A front deflection pulley device (30) reverses the direction of movement of a closing side cable (22) driven by a power source. The front deflection pulley device includes: a deflection pulley housing (31) attached to a body panel (11a); a first and a second deflection pulley receptacle provided within the deflection pulley housing (31); a first and a second deflection pulley shaft (PS1) and (PS2) provided in the first and second deflection pulley receptacles, respectively; and a first and a second deflection pulley rotatably displaced from the first deflection pulley shaft (PS1) and (PS2), respectively.the second idler pulley shaft (PS2) and around which the closing side cable (22) is wound; and a first and a second cable entry and exit hole (HL1) and (HL2) which are provided in the idler pulley housing (31) and communicate between the inside and outside of the idler pulley housing (31).

Description

BACKGROUND Technical area

[0001] The disclosure relates to a deflection pulley device that changes the direction of movement of a cable. Description of the state of the art

[0002] A sliding door is provided on a side panel of a single-room vehicle or the like, which moves in the front-to-rear direction of the vehicle to open and close an opening section. The sliding door is moved along a guide rail by a vehicle opening and closing device. Such a vehicle opening and closing device is described, for example, in patent specification 1.

[0003] The vehicle opening and closing device described in patent document 1 is a cable-type vehicle opening and closing device, and opens and closes the sliding door by driving a cable with a drive device. Furthermore, the vehicle opening and closing device described in patent document 1 includes a deflection pulley unit that changes the direction of movement of the cable to guide the cable along a guide rail. [Document(s) of the prior art][Patent document(s)]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-084605 SUMMARY [Problems to be solved by the invention]

[0005] In the deflection pulley unit described in patent document 1, a deflection pulley and a guide plate are used to change the direction of movement of the cable, and the cable is moved while rubbing against the guide plate. Therefore, there is a possibility that the plastic coating covering the surface of the cable will wear out prematurely, thus shortening the maintenance cycle.

[0006] One objective of the disclosure is to provide a deflection pulley device that can extend the maintenance cycle. [Means of solving the problems]

[0007] According to one aspect of the disclosure, a deflection pulley device that converts the direction of motion of a cable driven by a drive source comprises: a deflection pulley housing attached to a mounting object; several deflection pulley receiving parts provided within the deflection pulley housing; a deflection pulley shaft provided in each of the deflection pulley receiving parts; several deflection pulleys, each rotatably mounted on the deflection pulley shafts and around which the cable is wound; and a pair of cable entry and exit holes provided in the deflection pulley housing, communicating between the inside and outside of the deflection pulley housing. [Effects of the invention]

[0008] According to the disclosure, a deflection pulley device can be implemented which can extend a maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a schematic view of a vehicle equipped with an electric sliding door device. Fig. Figure 2 is a perspective view showing the electric sliding door mechanism. Fig. 1 shows. Fig. Figure 3 is a perspective view to describe a mounting structure of a front deflection pulley device on a body panel. Fig. Figure 4 is a perspective view of the front deflection pulley assembly as seen from the left side and the rear. Fig. Figure 5 is a perspective view of the front deflection pulley assembly seen from the right side and the rear. Fig. Figure 6 is a view of the front deflection pulley assembly seen from above. Fig. Figure 7 is a view of the front deflection pulley assembly seen from the rear. Fig. Figure 8 is a perspective view showing details of the inside of a basic element. Fig. Figure 9 is a perspective view showing details of the inside of the cover element. Fig. Figure 10 is a perspective view to describe the installation state of a cable within a deflection pulley housing. DESCRIPTION OF THE EXECUTION FORMS

[0009] The following describes in detail one embodiment of the disclosure with reference to the drawings.

[0010] Fig. Figure 1 is a schematic view of a vehicle equipped with an electric sliding door device. Fig. Figure 2 is a perspective view showing the electric sliding door mechanism. Fig. 1 shows. <Overview of the sliding door>

[0011] The in Fig. The vehicle 10 shown is a single-compartment vehicle. A relatively large opening 12 is provided on one side panel of the vehicle body 11, which forms the vehicle 10. This opening allows passengers to enter and exit, and luggage to be loaded and unloaded. The opening 12 is opened and closed by a sliding door 13, which moves in the front-to-back direction of the vehicle body 11. The sliding door 13 is movable along a guide rail 14, which is attached to the side panel of the vehicle body 11.

[0012] As in Fig. 1 and Fig. As shown in Figure 2, the guide rail 14 is essentially attached to a central part along an up-down direction of the vehicle body 11 and to a rear side of the opening part 12. The guide rail 14 comprises a linear part 14a, which extends in the longitudinal or front-back direction of the vehicle body 11, and a curved part 14b, which is curved from the front of the linear part 14a towards the inside of the vehicle (left side).

[0013] Additionally, a roller assembly 15 is provided on the rear of the sliding door 13. The roller assembly 15 is movably mounted on the guide rail 14. The sliding door 13 opens and closes the opening section 12 by moving the roller assembly 15 along the guide rail 14 in a front-to-back direction along the vehicle body 11.

[0014] In particular, when the roller assembly 15 is moved to the rear of the linear part 14a of the guide rail 14, the sliding door 13 is in an open state (see the solid line in Fig. 1) Additionally, when the roller assembly 15 is moved towards the front of the curved part 14b of the guide rail 14, the sliding door 13 is pulled towards the inside of the vehicle and is in a closed position (see the double dashed line in Fig. 1).

[0015] In addition, an electric sliding door device 20 is mounted on the vehicle body 11 to automatically open and close the sliding door 13.

[0016] Here, the side of the vehicle body 11 on which a driver's seat DR is located is defined as the "right side," and the side on which a passenger seat AS is located is defined as the "left side." Furthermore, the side of the vehicle body 11 on which the driver's seat DR and the passenger seat AS are located is defined as the "front," and the side on which a rear seat RS is located is defined as the "rear." Additionally, the side of the vehicle body 11 on which the floor surface FL is located is defined as the "bottom," and the side on which the ceiling (not shown) is located is defined as the "top." <Elektrische Schiebetürvorrichtung>

[0017] The electric sliding door device 20 comprises: an opening side cable 21 connected to the rear of the roller assembly 15; and a closing side cable 22 connected to the front of the roller assembly 15. That is, the electric sliding door device 20 is an automatic cable-type opening and closing device. Furthermore, the electric sliding door device 20 has a drive source 23 that drives the opening side cable 21 and the closing side cable 22. The drive source 23 is located essentially in a central part of the guide rail 14 along its longitudinal axis and on the interior side of the vehicle. Therefore, the drive source 23 is not exposed to wind or rain.

[0018] The direction of movement of the opening side cable 21, which is pulled from the drive source 23 to the rear, is redirected to the front by a rear deflection roller device 24 provided on the rear of the guide rail 14. The tip of the opening side cable 21 is connected to the roller assembly 15 from the rear of the guide rail 14. Furthermore, the direction of movement of the closing side cable 22, which is pulled from the drive source 23 to the front, is redirected to the rear by a front deflection roller device 30 provided on the front of the guide rail 14. The tip of the closing side cable 22 is connected to the roller assembly 15 from the front of the guide rail 14.

[0019] As in Fig. As shown in Figure 2, the drive source 23 includes a motor part 23a and a drive part 23b, which drives the opening side cable 21 and the closing side cable 22 by driving the motor part 23a. The motor part 23a can rotate its rotating shaft (not shown) in forward and reverse directions by switching an excitation state.

[0020] Furthermore, the drive part 23b includes a drum 23c provided with grooves around which the opening side cable 21 and the closing side cable 22 are wound, respectively. Specifically, the base end parts of the opening side cable 21 and the closing side cable 22 are attached to the drum 23c, and the opening side cable 21 and the closing side cable 22 are wound around the grooves of the drum 23c in opposite directions.

[0021] When the drum 23c is rotated forward, the opening side cable 21 is wound around the drum 23c and the closing side cable 22 is discharged from the drum 23c. This pulls the sliding door 13 backward and opens it. Conversely, when the drum 23c is rotated backward, the closing side cable 22 is wound around the drum 23c and the opening side cable 21 is discharged from the drum 23c. This pulls the sliding door 13 forward and closes it.

[0022] Here, outer housings 23d are provided between the drive unit 23b and the rear deflection roller assembly 24, as well as between the front deflection roller assembly 30. These housings guide the movement of the opening side cable 21 and the closing side cable 22. A lubricant (not shown), such as grease, is applied inside the outer housings 23d. This allows the opening side cable 21 and the closing side cable 22 to move with minimal friction.

[0023] The drive unit 23b is provided with clamping mechanisms 23e, one each corresponding to the opening side cable 21 and the closing side cable 22. The clamping mechanisms 23e serve to exert a constant tension on the opening side cable 21 and the closing side cable 22. Even if the opening side cable 21 and the closing side cable 22 expand due to changes in temperature or similar factors, any loosening can thus be prevented. <Vordere Umlenkrollenvorrichtung>

[0024] Next, the detailed structure of the front deflection pulley device 30, to which the disclosure is applied, will be described with reference to the drawings. However, the disclosure can be applied not only to the front deflection pulley device 30, but also to the rear deflection pulley device 24. The front deflection pulley device 30 corresponds to the deflection pulley device in the disclosure.

[0025] Fig. Figure 3 is a perspective view that describes the mounting structure of the front deflection pulley assembly on the body panel. Fig. Figure 4 is a perspective view of the front deflection pulley assembly as seen from the left side and the rear. Fig. Figure 5 is a perspective view of the front deflection pulley assembly seen from the right side and the rear. Fig. Figure 6 is a view of the front deflection pulley assembly seen from above. Fig. Figure 7 is a view of the front deflection pulley assembly seen from the rear. Fig. Figure 8 is a perspective view showing details of the interior of the base element. Fig. Figure 9 is a perspective view showing details of the interior of the cover element. Fig. Figure 10 is a perspective view that describes the routing state of the cable inside the deflection pulley housing.

[0026] As in the Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the front deflection pulley assembly 30 includes a deflection pulley housing 31, which forms its outer casing. The deflection pulley housing 31 is a section that is attached to the body panel 11a, which forms the vehicle body 11 (see Figure 5). Fig. 1) It is attached to the inside of the vehicle body panel 11a. The deflection pulley housing 31 has a split structure and comprises a base element 32 and a cover element 33. Both the base element 32 and the cover element 33 are injection-molded parts made of a resin material, for example, a plastic material. The body panel 11a corresponds to the assembly object in the disclosure.

[0027] In the state where the front idler pulley assembly 30 is attached to the body panel 11a, the base element 32 is located on the inside of the vehicle and the cover element 33 is located on the outside of the vehicle (right side). In particular, the body panel 11a is provided with a hole (not shown) that penetrates both the inside and outside of the vehicle, and the idler pulley housing 31 ( ) is positioned to span the body panel 11a over the hole (see Figure 1). Fig. 6 and Fig. 7).

[0028] The deflection pulley housing 31 has a section on the side of the cover element 33 that protrudes, while other sections have a substantially thin-walled, substantially box-like shape. This prevents an enlargement of the front deflection pulley assembly 30. Additionally, the protruding section of the cover element 33 is located in a dead space DS (see Fig. 3, Fig. 6 and Fig. 7) arranged on the outside of the vehicle body panel 11a.

[0029] In Fig. Figure 3 is a simplified representation of the drive source 23. Additionally, in Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. 7 and Fig. 10. The illustration of the outer casing 23d has been omitted. <basiselement>

[0030] As in Fig. 4 and Fig. As shown in Figure 8, the base element 32 includes a base-side floor wall section 32a, which extends in the top-bottom and front-back directions and is formed in a plate shape. A base-side inner surface SF1 is provided on the inside (right side) of the base-side floor wall section 32a, and a base-side outer surface SF2 is provided on the outside (left side) of the base-side floor wall section 32a. Additionally, a base-side side wall section 32b, which projects from the base-side floor wall section 32a towards the outside of the vehicle (right side) at a predetermined height, is integrally provided at an outer edge section of the base-side floor wall section 32a.

[0031] The base-side side wall part 32b is integrally provided with a total of four engagement claw parts 32c, each of which is attached to engagement convex parts 33c (see Fig. 9) of the cover element 33 are hooked in. Accordingly, the base element 32 and the cover element 33 abut each other in the vehicle width direction (left-right direction) of the vehicle body 11 and are connected in such a way that they do not rattle against each other.

[0032] Additionally, a base-side mounting recess 32d is provided on the side of the base-side inner side SF1 of the base-side bottom wall part 32a, to which an end part of the outer housing 23d (see Fig. 2) is attached. In addition, the base-side side wall part 32b is integrally provided with a pair of fastening parts 32e which are attached to the body panel 11a.

[0033] The pair of fastening elements 32e provided on the base element 32 are arranged oppositely in the top-bottom direction of the base element 32. In particular, one (upper) fastening element 32e projects upwards from the base-side side wall part 32b of the base element 32 at a predetermined height. Additionally, the other (lower) fastening element 32e projects downwards from the base-side side wall part 32b of the base element 32 at a predetermined height. Furthermore, the two fastening elements 32e are located on the right side (the front side) of the base element 32. Fig. 8, on the outside of the vehicle) of the base-side side wall part 32b in the left-right direction of the base element 32.

[0034] Additionally, both fastening parts 32e are each provided with a bolt insertion hole 32f running in the left-right direction. Fastening bolts (not shown) for attaching the front idler pulley assembly 30 to the body panel 11a are inserted through the bolt insertion holes 32f. <Erstes Umlenkrollenaufnahmeteil>

[0035] As in Fig. As shown in Figure 8, a first deflection pulley mounting part 32g is also provided on the inside of the base element 32 and between the pair of mounting parts 32e along the top-bottom direction. The first deflection pulley mounting part 32g is a section that rotatably receives a first deflection pulley PR1, around which the closing side cable 22 is wound, and a base-side shaft mounting hole 32h is provided on a substantially central portion of the first deflection pulley mounting part 32g. One end (left end) of the first deflection pulley shaft PS1 is attached to the base-side shaft mounting hole 32h. The other end (right end) of the first deflection pulley shaft PS1 is attached to a cover-side shaft mounting hole 33f (see Figure 8). Fig. 9) attached, which is provided in the cover element 33. In this way, the first deflection pulley shaft PS1 is provided in the first deflection pulley mounting part 32g.

[0036] Here, both the base-side shaft mounting hole 32h and the cover-side shaft mounting hole 33f extend in the left-right direction of the front idler pulley assembly 30. That is, the axis C1 of the first idler pulley shaft PS1, which is attached to the base-side shaft mounting hole 32h and the cover-side shaft mounting hole 33f, extends in the vehicle width direction (left-right direction) of the vehicle body 11.

[0037] The first deflection pulley mounting part 32g is provided within the deflection pulley housing 31 and corresponds to the deflection pulley mounting part in the disclosure. Additionally, the first deflection pulley shaft PS1 corresponds to the deflection pulley shaft in the disclosure. Furthermore, the first deflection pulley PR1 corresponds to the deflection pulley in the disclosure. <Zweites Umlenkrollenaufnahmeteil>

[0038] Additionally, as in Fig. Figure 8 shows a pair of shaft support projections 32k, which support both end parts of the second idler pulley shaft PS2, provided on the rear of the first idler pulley mounting part 32g. The shaft support projections 32k are arranged at predetermined intervals in the top-bottom direction of the front idler pulley assembly 30 and project from the base-side inner surface SF1 toward the vehicle exterior (right side) at a predetermined height. In particular, the projection height of the pair of shaft support projections 32k is higher than the base-side side wall part 32b. Therefore, the tip side of the pair of shaft support projections 32k is located on the vehicle exterior relative to the pair of mounting parts 32e.

[0039] Shaft mounting holes 32m, to which both sides of the second idler pulley shaft PS2 are axially attached, are provided in sections near the tips of the pair of shaft support projections 32k. Accordingly, the second idler pulley PR2, around which the closing side cable 22 is wound and which is rotatably supported by the second idler pulley shaft PS2, is rotatably received between the pair of shaft support projections 32k. That is, the second idler pulley receiving part 32n is provided between the pair of shaft support projections 32k, and the second idler pulley shaft PS2 is provided in the second idler pulley receiving part 32n.

[0040] The second deflection pulley mounting part 32n is provided within the deflection pulley housing 31 and corresponds to the deflection pulley mounting part in the disclosure. Additionally, the second deflection pulley shaft PS2 corresponds to the deflection pulley shaft in the disclosure. Furthermore, the second deflection pulley PR2 corresponds to the deflection pulley in the disclosure.

[0041] Here, each of the shaft mounting holes 32m extends in the top-bottom direction of the front deflection pulley assembly 30. That is, the axis C2 of the second deflection pulley shaft PS2, which is attached to the pair of shaft mounting holes 32m, extends in the top-bottom direction of the front deflection pulley assembly 30.

[0042] Therefore, when the first idler pulley shaft PS1 and the second idler pulley shaft PS2 are viewed from the front-to-back direction of the front idler pulley assembly 30, the angle formed between them is 90 degrees (right angle) (see Fig. 7) In this way, the first idler pulley shaft PS1, located on axis C1, and the second idler pulley shaft PS2, located on axis C2, extend in opposite directions. In particular, the first idler pulley shaft PS1 and the second idler pulley shaft PS2 are in "inclined positions" that are neither parallel to each other nor intersecting.

[0043] By arranging the first idler pulley shaft PS1 and the second idler pulley shaft PS2 in this way, as shown in Fig. 5, Fig. 6 and Fig. As shown in Figure 10, the first deflection pulley PR1 and the second deflection pulley PR2 are arranged close together, while the closing side cable 22 can be wound around the first deflection pulley PR1 and the second deflection pulley PR2 without excessive bending. Furthermore, in the left-right direction (vehicle width direction) of the front deflection pulley assembly 30, a first cable entry and exit hole HL1 and a second cable entry and exit hole HL2 can be arranged close together, and the second cable entry and exit hole HL2 on the side where the sliding door 13 is located can be positioned closer to the body panel 11a. This reduces the installation space required for the front side pulley assembly 30 (space saving).

[0044] Here, the case is assumed that the first deflection pulley PR1 is omitted and only the second deflection pulley PR2 is used, with the second cable entry and exit hole HL2 being located on a section near the tip of the pair of shaft support projections 32k (see Fig. 8). Therefore, the closing side cable 22 is guided as by the two-point catenary line in Fig. The cable is laid out as shown in Figure 6, and with such a laying of the closing-side cable 22, the installation space of the front deflection pulley device becomes large. The closing-side cable 22 corresponds to the cable in the disclosure.

[0045] Additionally, the deflection pulley housing 31 is formed from the base element 32 attached to the body panel 11a and the cover element 33 covering the base element 32, and the base element 32 is provided with the first deflection pulley mounting part 32g and the second deflection pulley mounting part 32n.

[0046] Accordingly, compared to the case where, for example, the first idler pulley mounting part 32g and the second idler pulley mounting part 32n are provided as separate elements, it is possible to improve the alignment accuracy of the first idler pulley mounting part 32g and the second idler pulley mounting part 32n. In other words, the alignment accuracy between the first idler pulley shaft PS1 (first idler pulley PR1) and the second idler pulley shaft PS2 (second idler pulley PR2) can be improved. Therefore, the generation of abnormal noise during the operation of the front idler pulley assembly 30 can be suppressed, thereby improving smooth running. <abdeckelement>

[0047] As in Fig. 5 and Fig. As shown in Figure 9, the cover element 33 covers the side of the base-side inner surface SF1 of the base element 32 and includes a cover-side plate part 33a that extends in the top-bottom and front-back directions and is formed in a plate shape. A cover-side inner surface SF3 is provided on the inside (left side) of the cover-side plate part 33a, and a cover-side outer surface SF4 is provided on the outside (right side) of the cover-side plate part 33a.

[0048] Here, the cover-side plate part 33a is thicker than the base-side floor wall part 32a (see Fig. 8) of the base element 32, and a total of four engagement convex parts 33c are integrally provided on the outer edge part 33b of the cover-side plate part 33a. A total of four engagement claw parts 32c, which are provided on the base-side side wall part 32b, are configured so that they can each be hooked onto the engagement convex parts 33c.

[0049] Additionally, a cover-side fastening recess 33d is provided on the side of the cover-side inner surface SF3 of the cover-side plate part 33a, which corresponds to the base-side fastening recess 32d (see Fig. 8) opposite and at which the end part of the outer casing 23d (see Fig. 2) is attached.

[0050] Here, the base-side mounting recess 32d and the cover-side mounting recess 33d, to which the end parts of the outer housing 23d are attached, are arranged on the side of the drive source 23 of the front deflection pulley device 30 and form a first cable entry and exit hole HL1, through which the closing-side cable 22 enters and exits the deflection pulley housing 31. <Erstes Umlenkrollenabdeckteil>

[0051] As in Fig. As shown in Figure 9, a first deflection pulley cover part 33e is also provided on the inside and front of the cover element 33. The first deflection pulley cover part 33e is a section that includes the first deflection pulley receiving part 32g (see Figure 9). Fig. 8) from the right side of the front idler pulley assembly 30. A shaft mounting hole 33f on the cover side, to which the other end part (right end part) of the first idler pulley shaft PS1 is attached, is provided essentially in the middle of the first idler pulley cover part 33e. In this way, both sides of the first idler pulley shaft PS1 are axially attached to the base element 32 and the cover element 33 of the idler pulley housing 31, respectively. <Zweites Umlenkrollenabdeckteil>

[0052] Additionally, as in Fig. Figure 9 shows a second deflection pulley cover part 33g provided on the reverse side of the first deflection pulley cover part 33e. The second deflection pulley cover part 33g is a section that accommodates the second deflection pulley receiving part 32n (see Figure 9). Fig. 8) from the right side of the front deflection pulley assembly 30. In particular, the second deflection pulley cover part 33g projects from the cover-side outer surface SF4 of the cover-side plate part 33a to the right side of the front deflection pulley assembly 30 at a predetermined height, so that it covers the pair of shaft support projections 32k (see Fig. 8) can cover those provided on the base element 32. This means that the pair of shaft support projections 32k, the second idler pulley shaft PS2 and the second idler pulley PR2 are covered by the second idler pulley cover part 33g.

[0053] Furthermore, as in Fig. Figure 5 shows the second deflection pulley cover part 33g with a second cable entry and exit hole HL2. The second cable entry and exit hole HL2 is located on the side of the pulley assembly 15 (see Figure 5). Fig. 2) the front deflection roller device 30 and serves as an opening through which the closing side cable 22 enters and exits the deflection roller housing 31.

[0054] In this way, the front deflection pulley device 30 is provided with a first cable inlet and outlet hole HL1 and a second cable inlet and outlet hole HL2, which connect the inside and outside of the deflection pulley housing 31. The first cable inlet and outlet hole HL1 and the second cable inlet and outlet hole HL2 each establish a connection between the inside and outside of the deflection pulley housing 31 and correspond to the cable inlet and outlet hole in the disclosure.

[0055] Here, as in Fig. 6 and Fig. Figure 7 shows a state in which the front idler pulley device 30 is attached to the body panel 11a, with the body panel 11a, to which the idler pulley housing 31 (the pair of mounting parts 32e) is attached, as its center point, the first idler pulley shaft PS1 is arranged on one side of the body panel 11a (on the left side in the direction of vehicle width and on the inside of the vehicle) and the second idler pulley shaft PS2 is arranged on the other side of the body panel 11a (on the right side in the direction of vehicle width and on the outside of the vehicle).

[0056] This allows the side of the second deflection pulley PR2 (projection dimension P1) of the front deflection pulley assembly 30 to be positioned in the dead space DS on the vehicle's outer (right) side of the body panel 11a. Conversely, the side of the first deflection pulley PR1 (projection dimension P2) of the front deflection pulley assembly 30 is positioned on the vehicle's inner (left) side of the body panel 11a, but since the projection dimension P2 is essentially half the projection dimension P1 (P2 ≒ P1 / 2), a narrowing of the vehicle's inner side can be suppressed. <umlenkrollenstruktur>

[0057] As in Fig. As shown in Figure 8, the first deflection pulley PR1 and the second deflection pulley PR2 are configured identically. The first deflection pulley PR1 is rotatably mounted on the first deflection pulley shaft PS1, and the second deflection pulley PR2 is rotatably mounted on the second deflection pulley shaft PS2. The first deflection pulley PR1 and the second deflection pulley PR2 are each essentially disc-shaped, and cable grooves G are provided on their outer circumferential sections. The closing-side cable 22 enters the cable grooves G of the first deflection pulley PR1 and the second deflection pulley PR2 in a curved state.

[0058] Furthermore, several grease retention recesses R are provided on the inner circumferential sections of the first idler pulley PR1 and the second idler pulley PR2, facing the outer circumferential sections of the first idler pulley shaft PS1 and the second idler pulley shaft PS2. The grease retention recesses R hold a predetermined quantity of lubricant (not shown), for example, grease. That is, the grease retention recesses R serve as so-called "grease reservoirs." This allows the first idler pulley PR1 and the second idler pulley PR2 to rotate with low friction relative to the first idler pulley shaft PS1 and the second idler pulley shaft PS2 over a long period of time. <kabelstruktur>

[0059] As in Fig. 4 and Fig. As shown in Figure 5, the closing side cable 22, wound around the first deflection pulley PR1 and the second deflection pulley PR2, is further formed by twisting several fine metal wires (not shown), and its surface is covered with a protective coating (not shown) made of resin. This prevents the fine metal wires from rusting. An end section 22a of the closing side cable with a cylindrical shape (for example, a drum shape) is integrally provided on the side of the sliding door 13 (the side of the roller assembly 15) in the longitudinal direction of the closing side cable 22. The end section 22a of the closing side cable is attached to the front of the roller assembly 15 (see Figure 5). Fig. 2).

[0060] As in Fig. As shown in Figure 2, the opening side cable 21, similar to the closing side cable 22, also has an end part 21a integrally provided on the side of the sliding door 13 (the side of the roller assembly 15). The end part 21a of the opening side cable is attached to the rear of the roller assembly 15 (see Figure 2). Fig. 2). <anordnungsprozedur>

[0061] Next, the assembly procedure for the front deflection pulley device 30, configured as described above, will be described in detail with reference to the drawings. The assembly procedure shown below is an example, and the device can also be assembled using other procedures.

[0062] First, as in Fig. As shown in Figure 8, one end of the first idler pulley shaft PS1 is inserted into the base-side shaft mounting hole 32h and secured there. Next, as indicated by arrows M1 and M2 in Figure 8, the shaft is inserted into the base-side shaft mounting hole 32h and secured. Fig. As shown in Figure 10, the closing side cable 22 is wound around the cable groove G of the first deflection pulley PR1, and the first deflection pulley PR1 is mounted onto the first deflection pulley shaft PS1. At this point, a predetermined amount of grease is applied to the grease retention recess R. Additionally, as indicated by arrow M3 in Figure 10, the first deflection pulley PR1 is mounted onto the first deflection pulley shaft PS1. Fig. 10 shows the closed side cable 22 arranged between the pair of shaft support projections 32k.

[0063] Next, the second deflection pulley PR2 is inserted between the pair of shaft support projections 32k, and the closing side cable 22 is wound around the cable groove G of the second deflection pulley PR2. Furthermore, the axis of the second deflection pulley PR2 and the axes of the pair of shaft mounting holes 32m are arranged coaxially. Then, the second deflection pulley shaft PS2 is mounted in the pair of shaft mounting holes 32m, including the inner circumferential part of the second deflection pulley PR2.

[0064] Next, the cover element 33 (see Fig. 5 and Fig. 9) prepared. Then, as indicated by arrow M4 in Fig. 10 shown, while the closing side cable 22 (end part 22a of the closing side cable) is being pulled, the closing side cable 22 is inserted through the second cable entry and exit hole HL2 of the cover element 33 from the side of the cover side inner surface SF3 to the cover side outer surface SF4.

[0065] Afterwards, the base-side inner surface SF1 of the base element 32 and the cover-side inner surface SF3 of the cover element 33 face each other, and the cover-side shaft mounting hole 33f (see Fig. 9) The cover element 33 is arranged on the axis of the first deflection roller shaft PS1. Then the other end of the first deflection roller shaft PS1 is inserted into the shaft mounting hole 33f on the cover side and secured therein. In addition, a total of four engagement claw parts 32c are hooked onto a total of four engagement convex parts 33c.

[0066] This completes the assembly of the front deflection pulley assembly 30.

[0067] As described in detail above, the front deflection pulley device 30, which converts the direction of movement of the closing side cable 22 driven by the drive source 23, comprises, according to the embodiment: the deflection pulley housing 31 attached to the body panel 11a; the first deflection pulley mounting part 32g and the second deflection pulley mounting part 32n, which are provided within the deflection pulley housing 31; the first deflection pulley shaft PS1 and the second deflection pulley shaft PS2, which are provided in the first deflection pulley mounting part 32g and in the second deflection pulley mounting part 32n, respectively; the first deflection pulley PR1 and the second deflection pulley PR2, which are rotatably connected to the first deflection pulley shaft PS1 and PS2, respectively.the second idler pulley shaft PS2 is mounted and around which the closing side cable 22 is wound; and the first and second cable entry and exit holes HL1 and HL2, which are provided in the idler pulley housing 31 and connect the inside and outside of the idler pulley housing 31.

[0068] This allows the direction of movement of the closing side cable 22 to be reversed by the first deflection roller PR1 and the second deflection roller PR2, which rotate in conjunction with the movement of the closing side cable 22. Therefore, the sections where the closing side cable 22 rubs can be eliminated, and wear on the surface of the closing side cable 22 can be prevented. Consequently, the front deflection roller assembly 30 can operate with low friction for extended periods, and the maintenance cycle of the front deflection roller assembly 30 (electric sliding door assembly 20) can be extended.

[0069] Furthermore, according to the embodiment, the first deflection roller shaft PS1 and the second deflection roller shaft PS2 are in inclined positions relative to each other.

[0070] This allows the first deflection pulley PR1 and the second deflection pulley PR2 to be positioned close together, and the closing side cable 22 can be wound around the first deflection pulley PR1 and the second deflection pulley PR2 without forced bending (see Fig. 10). Furthermore, in the left-right direction of the front deflection pulley device 30, the first cable entry and exit hole HL1 and the second cable entry and exit hole HL2 can be arranged close to each other (see Fig. 6) Therefore, while ensuring low-friction operation of the front deflection pulley device 30, the installation space can be reduced to save space.

[0071] Furthermore, according to the embodiment, the deflection roller housing 31 is provided such that it spans the body panel 11a, wherein the first deflection roller shaft PS1 is arranged on one side (left side) of the body panel 11a and the second deflection roller shaft PS2 is arranged on the other side (right side) of the body panel 11a.

[0072] This allows the side of the second deflection pulley PR2 (projection dimension P1) of the front deflection pulley assembly 30 to be positioned in the dead space DS on the vehicle's outer (right) side of the body panel 11a. Therefore, the projection dimension P2 of the front deflection pulley assembly 30 towards the vehicle's interior can be reduced, thus preventing a narrowing of the vehicle's interior.

[0073] Furthermore, the deflection pulley housing 31 according to the embodiment includes: the base element 32 attached to the body panel 11a; and the cover element 33 covering the base element 32, wherein the base element 32 is provided with the first deflection pulley receiving part 32g and the second deflection pulley receiving part 32n.

[0074] This improves the alignment accuracy of the first idler pulley mounting part 32g and the second idler pulley mounting part 32n, and consequently improves the alignment accuracy of the first idler pulley PR1, including the first idler pulley shaft PS1, and the second idler pulley PR2, including the second idler pulley shaft PS2. Therefore, the generation of unusual noises during operation of the front idler pulley assembly 30 can be suppressed, thus improving smooth running.

[0075] Furthermore, according to the embodiment, the maintenance cycle of the front deflection pulley device 30 can be extended, thus saving the energy required for disassembly and reassembly work. Therefore, it is possible to achieve, in particular, Goal 7 (Ensure access to affordable, reliable, sustainable and modern energy for all) and Goal 13 (Take urgent action to combat climate change and its impacts) of the United Nations Sustainable Development Goals (SDGs).

[0076] The disclosure is not limited to the embodiment shown, and it is understood that various modifications can be made without deviating from the essential features. For example, in the embodiment shown, the deflection pulley housing 31 is shown with the first deflection pulley receiving part 32g and the second deflection pulley receiving part 32n inside, that is, including the first deflection pulley PR1 and the second deflection pulley PR2, but the disclosure is not limited thereto and can be applied to a deflection pulley housing with three or more deflection pulleys inside.

[0077] Furthermore, the embodiment shows the front deflection roller device 30 of the electric sliding door device 20, in which the drive source 23 is attached to the vehicle body 11, but the disclosure is not limited to this and can be applied to a deflection roller device of an electric sliding door device in which the drive source is attached inside the sliding door 13.

[0078] Furthermore, the material, shape, dimensions, number, location of the components, and the like of the individual components in the embodiment can be arbitrary, as long as the disclosure can be achieved, and are not limited to the embodiment above. [List of reference symbols]

[0079] 10: Vehicle, 11: Vehicle body, 11a: Body panel (assembly object), 12: Opening part, 13: Sliding door, 14: Guide rail, 14a: Linear part, 14b: Curved part, 15: Roller assembly, 20: Electric sliding door device, 21: Opening side cable, 21a: End part of the opening side cable, 22: Closing side cable (cable), 22a: End part of the closing side cable, 23: Drive source, 23a: Motor part, 23b: Drive part, 23c: Drum, 23d: Outer housing, 23e: Tensioning mechanism, 24: Rear deflection roller assembly, 30: Front deflection roller assembly (deflection roller assembly), 31: Deflection roller housing, 32: Base element, 32a: Base-side bottom wall part, 32b: Base-side side wall part 32c: Engagement claw part, 32d: Base-side mounting recess, 32e: Mounting part, 32f: Bolt insertion hole, 32g: First deflection pulley mounting part (deflection pulley mounting part), 32h: Base-side shaft mounting hole, 32k: Shaft support projection, 32m: Shaft mounting hole,32n: second deflection pulley mounting part (deflection pulley mounting part), 33: cover element, 33a: cover-side plate part, 33b: outer edge part, 33c: engagement convex part, 33d: cover-side mounting recess, 33e: first deflection pulley cover part, 33f: cover-side shaft mounting hole, 33g: second deflection pulley cover part, AS: passenger seat, C1, C2: axle, DR: driver's seat, DS: dead space, FL: floor area, G: cable groove, HL1: first cable entry and exit hole (cable entry and exit hole), HL2: second cable entry and exit hole (cable entry and exit hole), P1, P2: overhang, PR1: first deflection pulley (deflection pulley), PR2: second deflection pulley (deflection pulley), PS1: first deflection pulley shaft (deflection pulley shaft), PS2: second Deflection pulley shaft (deflection pulley shaft), R: grease retention recess, RS: rear seat, SF1: base-side inner surface, SF2: base-side outer surface, SF3: cover-side inner surface, SF4: cover-side outer surface, QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2020-084605

[0004] < / anordnungsprozedur> < / kabelstruktur> < / umlenkrollenstruktur> < / abdeckelement> < / basiselement>

Claims

A deflection pulley device (30) that converts the direction of motion of a cable driven by a drive source (23), the deflection pulley device (30) comprising: a deflection pulley housing (31) attached to a mounting object (11a); several deflection pulley receiving parts (32g, 32n) provided within the deflection pulley housing (31); a deflection pulley shaft (PS1, PS2) provided in each of the deflection pulley receiving parts (32g, 32n); several deflection pulleys (PR1, PR2) each rotatably held by the deflection pulley shafts (PS1, PS2) and around which the cable is wound; and a pair of cable inlet and outlet holes (HL1, HL2) provided in the deflection pulley housing (31) and communicating between the inside and outside of the deflection pulley housing (31). Deflection roller device (30) according to claim 1, wherein the deflection roller housing (31) comprises: a first deflection roller receiving part (32g, 32n) in which a first deflection roller shaft (PS1, PS2) is provided; and a second deflection roller receiving part (32g, 32n) in which a second deflection roller shaft (PS1, PS2) is provided, wherein the first deflection roller shaft (PS1, PS2) and the second deflection roller shaft (PS1, PS2) are arranged in positions inclined relative to each other. Deflection roller device (30) according to claim 2, wherein the deflection roller housing (31) is provided such that it spans the mounting object (11a), the first deflection roller shaft (PS1, PS2) is arranged on one side of the mounting object (11a) and the second deflection roller shaft (PS1, PS2) is arranged on another side of the mounting object (11a). Deflection pulley device (30) according to claim 2 or 3, wherein the deflection pulley housing (31) comprises: a base element (32) that is attached to the mounting object (11a); and a cover element (33) that covers the base element (32), and wherein the base element (32) is provided with the first deflection pulley receiving part (32g, 32n) and the second deflection pulley receiving part (32g, 32n).

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