JP2017144833A - Roller unit and opening/closing body driving device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller unit which enables improvement of assemblability while maintaining holding rigidity to a cable and inhibits enlargement, and to provide an opening/closing body driving device for a vehicle.SOLUTION: A roller unit includes: a base bracket 2 supporting a slide door; a support shaft 23 erected on the base bracket 2; a vertical roller 21 which is rotatably supported by the support shaft 23 and rolls in a center rail; a cable holder 11 which holds the other ends of an opening cable 112 and a closing cable 113; and a cable guide 40 which is disposed at an opposite side of the cable holder 11 across the vertical roller 21, is integrally provided with the cable holder 11, and guides the opening cable 112 and the closing cable 113. A through hole, into which the support shaft 23 may be inserted, is formed at the cable holder 11, and an opening part 45, into which the support shaft 23 may be inserted, is formed at the cable guide 40.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a roller unit and a vehicle opening / closing body driving device.

Conventionally, in vehicles such as wagon cars and one-box cars, the sliding door that opens and closes the opening for getting on and off provided on the side of the vehicle body is driven by an electric motor to improve the convenience for passengers to get on and off. There are known drive devices.
The slide door is supported by a guide rail extending along the front-rear direction of the vehicle body so as to be slidable through a roller unit. In front of the guide rail, a curved portion that is curved toward the vehicle interior side is provided. When the sliding door is in the fully closed state, the roller unit is guided to the curved portion, so that the sliding door is drawn inside the vehicle body so as to be flush with the side surface of the vehicle body.

  One end of two cables is connected to the roller unit. The other ends of these two cables are each connected to a driving device. The drive device is configured to separately pull the other ends of the two cables. When the cable is pulled, the roller unit slides along the guide rail, and the sliding door is opened and closed.

Here, when the roller unit is guided to the curved portion of the guide rail, the cable wiring path length (circumferential length) becomes long. In order to suppress such a change in the wiring path length of the cable, it is desirable that the position of each cable be as close as possible to the guide rail.
Therefore, a technique of providing a cable guide (cable support) to bring one end side of two cables connected to the roller unit closer to the guide rail side is disclosed (for example, see Patent Document 1).

  The cable guide is provided in the roller unit. Since the tension of each cable is applied to the cable guide, rigidity for holding each cable is required. In patent document 1, in order to raise the holding | maintenance rigidity with respect to the cable of a cable guide, the attachment tab for hold | maintaining a cable guide is provided. The mounting tab is provided integrally with the main body portion of the roller unit, and is formed by processing a part of the main body portion. Thereby, the rigidity of the mounting tab is ensured and the holding rigidity of the cable guide with respect to the cable is ensured.

JP 2009-235891 A

However, in the above-described prior art, there is a problem that a mounting tab is provided in order to increase the holding rigidity of the cable guide with respect to the cable, and further, the processing takes time to increase the rigidity of the mounting tab.
In addition, since laborious processing is performed, not only the assembly performance of the roller unit is deteriorated, but also the roller unit is increased in size.

  Therefore, the present invention has been made in view of the above-described circumstances, and provides a roller unit and a vehicle opening / closing body drive device that can improve assembly while maintaining the holding rigidity of a cable and can suppress an increase in size. It is to provide.

  In order to solve the above-described problems, a roller unit according to the present invention supports a slide door slidably along a guide rail provided in a vehicle body, and automatically opens and closes the slide door. In the roller unit to which the other end of each of the opening cable and the closing cable connected to one end is connected to the guide rail and the slide door, the opposite side of the vehicle body is provided. A bracket that supports the slide door at an end; a support shaft that is erected on the bracket; a roller that is rotatably supported by the support shaft and rolls within the guide rail; and the support shaft of the bracket And a cable holder for holding the other end of each of the opening cable and the closing cable; and A cable guide that is disposed on the opposite side of the cable holder across the cable and is provided integrally with the cable holder and guides the cable for opening and the cable for closing. A holder-side through hole through which the support shaft can be inserted is formed in the holder, and a guide-side through hole through which the support shaft can be inserted is formed in the cable guide.

Thus, by providing the cable holder and the cable guide integrally, the tension applied to each cable can be received by both the cable holder and the cable guide. For this reason, the holding rigidity with respect to the cable of the roller unit can be maintained.
In addition, a holder side through hole is formed in the cable holder and a guide side through hole is formed in the cable guide. Therefore, the cable holder and the cable guide integrated with the bracket are set, and the roller is set, and then each through hole is set. The support shaft can be inserted into the hole, and the support shaft can be attached to the bracket. For this reason, the assembly property of a roller unit can be improved.
Furthermore, since it is not necessary to form the cable holder and the cable guide so as to avoid the support shaft, the cable holder and the cable guide can be reduced in size.

  In the roller unit according to the present invention, at least the end portion of the support shaft on the cable guide side has a caulking portion formed to have a diameter larger than the shaft diameter of the support shaft, and the hole diameter of the guide side through hole is: It is set larger than the outer diameter of the caulking portion.

By comprising in this way, a spindle and a roller can be attached to a bracket only by carrying out buckling deformation of the edge part of a spindle and forming a caulking part. For this reason, the assembly property of a roller unit can further be improved.
Further, since the hole diameter of the guide side through hole is set larger than the outer diameter of the caulking portion, the support shaft can be buckled and deformed from above the cable guide via the guide side through hole. For this reason, the assembly property of a roller unit can be improved.

  In the roller unit according to the present invention, a guide groove for wiring the opening cable and the closing cable is formed in the cable guide, and the guide side through hole is formed on the guide groove. Features.

  Thus, the cable guide can be further miniaturized by forming the guide groove and the guide side through hole at the same position.

  In the roller unit according to the present invention, the roller is a rolling bearing having an inner ring and an outer ring, and is in contact with the inner ring around a holder side through hole of the cable holder and between the cable holder and the roller. It is characterized in that a spacer is provided to ensure the gap.

  By comprising in this way, a roller can be rolled smoothly. For this reason, a roller unit can be operated efficiently.

  In the roller unit according to the present invention, the opening cable and the closing cable are each guided by the cable guide in a state of intersecting on the cable guide.

  With this configuration, only one guide groove is formed in one cable guide, and two cables can be wired together in the guide groove. For this reason, a roller unit can be reduced in size.

  In the roller unit according to the present invention, the other end of each of the opening cable and the closing cable includes a columnar cable end, and the cable holder includes the opening cable and the closing cable. A cable end holding portion disposed on the side where the tension at the other end is applied; a cable hook disposed on the opposite side of the cable end holding portion at the other end of each of the opening cable and the closing cable; The cable end holding portion and the cable hook hold the outer peripheral portion of each cable end.

  By comprising in this way, the operation | work which attaches the other end of each cable to a cable holder can be facilitated.

  In the roller unit according to the present invention, the opening cable and the closing cable are offset to the guide rail side from the other ends of the opening cable and the closing cable by the cable guide. It is characterized by being wired.

With this configuration, each cable can be brought as close to the guide rail as possible.
For this reason, when a roller unit slides along a guide rail, it can suppress that the wiring route length of a cable changes in the middle of this sliding movement.

  A vehicle opening / closing body driving device according to the present invention includes the roller unit described above, and the driving device to which one end of each of the opening cable and the closing cable is coupled. To do.

With this configuration, when the roller unit slides along the guide rail, the vehicular opening / closing body drive device that can reliably suppress the change in the wiring path length of the cable during the sliding movement. Can provide.
In addition, it is possible to provide an opening / closing body drive device for a vehicle that can improve assembly while maintaining the holding rigidity with respect to the cable and can suppress an increase in size.

According to the present invention, by providing the cable holder and the cable guide integrally, the tension applied to each cable can be received by both the cable holder and the cable guide. For this reason, the holding rigidity with respect to the cable of the roller unit can be maintained.
In addition, a holder side through hole is formed in the cable holder and a guide side through hole is formed in the cable guide. Therefore, the cable holder and the cable guide integrated with the bracket are set, and the roller is set, and then each through hole is set. The support shaft can be inserted into the hole, and the support shaft can be attached to the bracket. For this reason, the assembly property of a roller unit can be improved.
Furthermore, since it is not necessary to form the cable holder and the cable guide so as to avoid the support shaft, the cable holder and the cable guide can be reduced in size.

It is a side view of the vehicle in the embodiment of the present invention. It is a top view which shows the attachment structure to the vehicle main body of the slide door in embodiment of this invention. It is the perspective view which looked at the roller unit in 1st Embodiment of this invention from the upper side. It is the side view which looked at the roller unit in 1st Embodiment of this invention from the lower side. It is the perspective view which looked at the state which removed the holder guide from the roller unit in 1st Embodiment of this invention from the upper side. It is a perspective view of the holder guide in 1st Embodiment of this invention. It is explanatory drawing which shows the assembly | attachment procedure of the roller unit in 1st Embodiment of this invention. It is explanatory drawing which shows the assembly | attachment procedure of the roller unit in 1st Embodiment of this invention. It is explanatory drawing which shows the assembly | attachment procedure of the roller unit in 1st Embodiment of this invention. It is the perspective view which looked at the roller unit in 2nd Embodiment of this invention from the upper side. It is the perspective view which looked at the roller unit in 2nd Embodiment of this invention from the lower side. It is a perspective view of the cable holder in 2nd Embodiment of this invention. It is a perspective view of the cable guide in 2nd Embodiment of this invention.

  Next, embodiments of the present invention will be described with reference to the drawings.

(vehicle)
FIG. 1 is a side view of a vehicle 100 on which a slide door automatic opening / closing device 110 according to the present invention is mounted, and FIG. 2 is a plan view showing a structure for mounting a slide door 103 to a vehicle body 101. In the following description, in order to simplify the description, the ground side of the vehicle 100 is simply the lower side, the ceiling side of the vehicle 100 is simply the upper side, the front in the traveling direction of the vehicle 100 is simply the front, and the rear in the traveling direction is simply the rear. It expresses and explains.

  As shown in FIG. 1, a vehicle main body 101 of a vehicle 100 is provided with a slide door 103 for opening and closing an opening 102 of the vehicle main body 101 on a side portion. The sliding door 103 includes an upper rail 104 disposed on the upper side of the opening 102, a lower rail 105 disposed on the lower side of the opening 102, and approximately the center in the vertical direction of the opening 102 and the rear The center rail 106 disposed on the side is slidably supported.

As shown in FIG. 2, the center rail 106 is integrally formed with a linear straight portion 106a extending in the front-rear direction and a curved portion 106b that is curved toward the vehicle interior side with respect to the straight portion 106a. It is a thing. The center rail 106 is fixed to the vehicle body 101 with the curved portion 106b facing forward.
Although not shown, the upper rail 104 and the lower rail 105 are also composed of a linear portion that extends in the front-rear direction and a curved portion that is curved toward the vehicle interior side with respect to the linear portion. ing.

  A center arm 107 is provided at a position corresponding to the center rail 106 at the rear end of the slide door 103. The tip of the center arm 107 is slidably supported on the center rail 106 via the roller unit 1.

  In addition, although illustration is abbreviate | omitted, while the upper arm is provided in the upper end part in front of the slide door 103, the lower arm is provided in the lower end part. The upper rail 104 supports the tip of the upper arm slidably through a roller unit. On the other hand, on the lower rail 105, the tip of the lower arm is slidably supported via a roller unit. As the roller units attached to the upper rail 104 and the lower rail 105, those having the same structure as the roller unit 1 attached to the center rail 106 can be adopted.

  Here, the vehicle 100 is equipped with a slide door automatic opening / closing device 110 for automatically opening and closing the slide door 103. The slide door automatic opening / closing device 110 is a so-called cable-type automatic opening / closing device, and includes a drive unit 111 disposed substantially in the center of the center rail 106 in the front-rear direction and inside the vehicle main body 101, and a drive unit 111. And an opening cable 112 that connects the rear part of the roller unit 1 and a closing cable 113 that connects the drive unit 111 and the front part of the roller unit 1.

An open pulley 114 is provided at the rear end of the center rail 106. On the other hand, a closed pulley 115 is provided at the front end of the center rail 106.
The opening cable 112 is wired across both the first and the first 111 so that one end is connected to the driving unit 111 and the other end is connected to the roller unit 1 via the opening pulley 114. On the other hand, the closing cable 113 is wired over the both ends 1, 111 so that one end is connected to the drive unit 111 via the closed pulley 115 and the other end is connected to the roller unit 1.

  The drive unit 111 includes an electric motor 116, a cable drive mechanism (not shown), and a control device 117 for performing drive control of the electric motor 116. Then, when the electric motor 116 controlled by the control device 117 rotates forward and backward, a cable driving mechanism (not shown) is driven, and the opening cable 112 and the closing cable 113 are pulled. As a result, the slide door 103 slides along the rails 104 to 16 via the roller unit 1. Then, the sliding door 103 is automatically opened and closed.

  Here, when the sliding door 103 is in the open state, when the closing cable 113 is pulled, the roller unit 1 is guided to the curved portion 106 b of the center rail 106, and the curved portions of the upper rail 104 and the lower rail 105 are used. A roller unit (both not shown) is guided. Then, the slide door 103 is drawn obliquely from the outside of the vehicle main body 1 toward the vehicle interior side, and is then closed flush with the side surface of the vehicle main body 101.

(First embodiment)
(Roller unit)
FIG. 3 is a perspective view of the roller unit 1 as viewed from above, and FIG. 4 is a side view of the roller unit 1 as viewed from below. FIG. 5 is a perspective view of the state in which the holder guide 120 is removed from the roller unit 1 as viewed from above, and corresponds to FIG.
As shown in FIGS. 3 to 5, the roller unit 1 has a base bracket 2 having one end attached to the tip of the center arm 107. The base bracket 2 is formed by pressing a metal plate or the like, and has a base body 3 having a substantially L-shaped cross section. The base body 3 includes a vertical wall 3a that extends along the vertical direction, and a horizontal wall 3b that bends and extends along the horizontal direction from the lower end of the vertical wall 3a. And the vertical wall 3a is arrange | positioned in the state which faced the center rail 106 side which is the vehicle main body 101 side.

  A rising wall 4 is bent and extended upward on one side of the horizontal wall 3 b of the base body 3, and further, a tongue piece portion 5 is provided at the upper end of the rising wall 4 so as to be parallel to and opposed to the horizontal wall 3 b. Is bent and extended. The lateral wall 3b, the rising wall 4 and the tongue piece 5 form a substantially U-shaped receiving portion 6 in which a center arm 107 extending from the slide door 103 is accommodated.

  Further, the horizontal wall 3b and the tongue piece 5 are formed with an insertion hole 8 into which a shaft (not shown) can be inserted along the vertical direction. Then, the base bracket 2 and the center arm 107 are connected via a shaft (not shown). That is, the base bracket 2 is attached to the center arm 107 so as to be rotatable about the shaft 7.

  On the other hand, at the upper end of the vertical wall 3a, the horizontal roller mounting seats 9a, 9a, 9c are formed at both ends in the width direction toward the center rail 106 side (the front side in FIG. 3 and FIG. 5). 9b is bent and extended. The horizontal roller mounting seats 9a and 9b are respectively provided with horizontal rollers (sub-rollers) 10a and 10b accommodated in the center rail 106. Each horizontal roller 10a, 10b is configured by a so-called sliding bearing. The horizontal rollers 10a and 10b are rotatably supported by support shafts 20a and 20b protruding upward from the horizontal roller mounting seats 9a and 9b, respectively.

Further, a substantially central portion in the width direction at the upper end of the vertical wall 3 a is a vertical roller mounting seat 22. A part of the vertical roller mounting seat 22 protrudes slightly upward. A through hole 24 is formed in the vertical roller mounting seat 22, and a support shaft 23 is inserted into the through hole 24. The support shaft 23 protrudes from the vertical wall 3a toward the center rail 106 side. A vertical roller (main roller) 21 is rotatably supported on the support shaft 23. The vertical roller 21 is a so-called rolling bearing, and includes an inner ring 21a and an outer ring 21b provided to be rotatable with respect to the inner ring 21a.
At both ends of the support shaft 23, caulking portions 26 formed by buckling deformation are provided. This prevents the support shaft 23 from coming off from the base bracket 2 and prevents the vertical roller 21 from coming off from the support shaft 23.

  Thus, the support shafts 20a and 20b of the horizontal rollers 10a and 10b provided in the roller unit 1 and the support shaft 23 of the vertical roller 21 are provided so as to be substantially orthogonal to each other. That is, the horizontal rollers 10 a and 10 b roll in the center rail 106 while restricting the horizontal movement of the roller unit 1. On the other hand, the vertical roller 21 receives a load applied to the roller unit 1 and rolls in the center rail 106 while transmitting this load to the center rail 106.

  A cutout 25 is formed on the vertical wall 3a of the base body 3 slightly below the horizontal roller mounting seats 9a and 9b at both ends in the width direction. A holder guide 120 is provided on the vertical wall 3 a so as to engage with the notch 25. The holder guide 120 is disposed below the horizontal roller mounting seats 9a and 9b.

(Holder guide)
FIG. 6 is a perspective view of the holder guide 120.
As shown in the figure, the holder guide 120 is made of resin. The holder guide 120 is formed by integrally forming the cable holder 11 disposed on the vertical wall 3a side of the base bracket 2 and the cable guide 40 disposed on the center rail 106 side of the cable holder 11. .

(Cable holder)
The cable holder 11 has a function of holding a cylindrical cable end 112 a provided at the other end of the opening cable 112 and a cylindrical cable end 113 a provided at the other end of the closing cable 113. ing.
The cable holder 11 has a holder base 12 formed long along the width direction of the base bracket 2. In the following description, the longitudinal direction of the cable holder 11 may be simply referred to as a longitudinal direction, and the short direction of the cable holder 11 may be simply referred to as a short direction.

At the center in the longitudinal direction of the holder base 12, a through hole 32 that penetrates in the thickness direction and can be inserted through the support shaft 23 of the vertical roller 21 is formed. The support shaft 23 is inserted into the through hole 32, and the vertical roller 21 is disposed near the center rail 106 of the holder base 12.
A ring-shaped spacer 13 is formed on the inner peripheral edge of the through hole 32 so as to protrude toward the center rail 106 side. The spacer 13 is for securing a gap S between the holder base 12 and the vertical roller 21. The spacer 13 is formed so as to contact the inner ring 21 a of the vertical roller 21.

  Furthermore, leg portions 14 and 15 project from the longitudinal ends of the holder base 12 toward the vertical wall 3a of the base bracket 2 (base body 3). These leg parts 14 and 15 are inserted in the notch part 25 currently formed in the vertical wall 3a. At the tips of the leg portions 14 and 15, flange portions 14a and 15a extending upward are integrally formed. The leg portions 14 and 15 inserted into the cutout portion 25 of the vertical wall 3a and the base bracket 2 are engaged by the flange portions 14a and 15a.

  Moreover, the 1st side wall 12a and the 2nd side wall 12b are standingly arranged by the longitudinal direction both ends of the holder base 12, and the transversal direction both sides, respectively. A width W1 between the first side wall 12a and the second side wall 12b facing each other in the short direction is set to a width that allows the cables 112 and 113 to be inserted. In addition, cable end insertion holes 16a and 16b penetrating in the vertical direction are formed in the central portions of the first side wall 12a and the second side wall 12b, respectively. The cable ends 112a and 113a of the cables 112 and 113 are inserted into the cable end insertion holes 16a and 16b.

Of the two side walls 12a and 12b, the second side wall 12b extends obliquely from the slide door 103 side to the outside in the longitudinal direction of the holder base 12 slightly from the substantially center in the in-vehicle direction of the cable end insertion hole 16b. A slit 37 is formed. The cables 112 and 113 are inserted between the two side walls 12a and 12b through the slit 37.
Here, with respect to the side walls 12a and 12b, with respect to the cable end insertion holes 16a and 16b, the center side in the longitudinal direction of the holder base 12 is a cable end holding portion 34, and both end sides in the longitudinal direction are cable hooks 35. The roles of the cable end holding portion 34 and the cable hook 35 will be described later.

(Cable guide)
The cable guide 40 is for guiding the cable ends 112 a and 113 a of the cables 112 and 113 fixed to the cable holder 11. The cable guide 40 is formed long along the longitudinal direction of the cable holder 11 and is formed so as to straddle the side walls 12 a and 12 b provided at both ends of the cable holder 11.
The cable holder 11 and the cable guide 40 are integrally formed, and the vertical roller 21 is disposed in the opening 120 a surrounded by the cable holder 11 and the cable guide 40. That is, the cable guide 40 is disposed on the opposite side of the cable holder 11 with the vertical roller 21 interposed therebetween.

The cable guide 40 is formed in a substantially U-shaped cross section so that the center rail 106 side opens. That is, the cable guide 40 has a bottom wall 41 and two side walls 43 and 44 that rise from both sides of the bottom wall 41 in the short direction.
The width W2 between the two side walls 43 and 44 is set to be the same as the width W1 between the first side wall 12a and the second side wall 12b of the cable holder 11. The two side walls 43 and 44 are formed so as to be smoothly connected to the side walls 12a and 12b of the cable holder 11, respectively. The bottom wall 41 and the side walls 43 and 44 form a guide groove 42. The cables 112 and 113 are wired in the guide groove 42.

  Further, curved portions 43 a and 44 a are formed at the substantially longitudinal center of the two side walls 43 and 44, that is, at a position facing the vertical roller 21, so as to bulge in a direction away from each other. Further, the curved portions 43a and 44a are formed along the same circle. The bottom wall 41 at a position corresponding to the curved portions 43a and 44a is cut off. As a result, the curved portions 43 a and 44 a form the opening 45. Further, the opening 45 has a shape formed on the guide groove 42.

  Further, the curved portions 43 a and 44 a are formed such that the opening area of the opening 45 is slightly larger than the area of the caulking portion 26 of the support shaft 23. Accordingly, a part of the inner ring 21 a of the vertical roller 21 and the support shaft 23 that pivotally supports the vertical roller 21 are exposed to the outside of the cable guide 40 through the opening 45.

(Assembly method of roller unit and action of roller unit)
Next, the assembly method of the roller unit 1 and the operation of the roller unit 1 will be described with reference to FIGS.
7-9 is explanatory drawing which shows the assembly | attachment procedure of the roller unit 1. FIG.
First, as shown in FIG. 7, the horizontal rollers 10 a and 10 b are assembled to the base bracket 2 in advance.

  Then, the holder guide 120 is attached to such a base bracket 2. Specifically, the holder guide 120 is inserted so that the legs 14 and 15 of the holder guide 120 face the notch 25 of the base bracket 2 and the legs 14 and 15 are inserted into the notch 25. Install. At this time, the holder guide 120 is engaged with the base bracket 2 by the flange portions 14a and 15a formed integrally with the leg portions 14 and 15, respectively. For this reason, the holder guide 120 is maintained attached to the base bracket 2.

  Subsequently, as shown in FIG. 8, the vertical roller 21 is set in the opening 120 a of the holder guide 120. Thereafter, the support shaft 23 that pivotally supports the vertical roller 21 is inserted into the opening 45 and the through hole 32 of the holder guide 120, the vertical roller 21, and the through hole 24 of the base bracket 2. Then, both ends of the support shaft 23 are buckled and deformed using a tool or the like to form the caulking portion 26. As a result, the base bracket 2, the holder guide 120, and the vertical roller 21 are integrated by the support shaft 23.

At this time, since the spacer 13 is integrally formed in the holder guide 120, even if both ends of the support shaft 23 are buckled and deformed, the holder guide 120 is securely connected between the holder base 12 and the vertical roller 21. A gap S is formed in the gap.
Further, when buckling and deforming the end portion of the support shaft 23, the end of the support shaft 23 opposite to the base bracket 2 is moved from above the cable guide 40 of the holder / guide 120 with a tool or the like. Will be pressed. Here, the cable guide 40 is formed with an opening 45 to the extent that the caulking portion 26 is exposed by the curved portions 43a and 44a. For this reason, the end portion of the support shaft 23 can be buckled and deformed easily from above the cable guide 40.

  It should be noted that one end portion of both ends of the support shaft 23 may be buckled and deformed in advance to form the caulking portion 26. In this case, the tip on the side where the caulking portion 26 is not formed is inserted into the opening 45 and the through hole 32 of the holder guide 120, the vertical roller 21, and the through hole 24 of the base bracket 2. After that, the base bracket 2, the holder guide 120, and the vertical roller 21 are integrated by the support shaft 23 by forming the caulking portion 26 at the tip.

  Next, as shown in FIG. 9, the cable ends 112 a and 113 a of the cables 112 and 113 are inserted into the cable end insertion holes 16 a and 16 b of the holder guide 120. At this time, first, the base bracket 2 is turned upside down from the normal direction. Of the cable end insertion holes 16a and 16b located on the corresponding drawing direction side of the cables 112 and 113, the cable ends 112a and 113a are connected to the cable end insertion holes 16b of the second side wall 12b where the slits 37 are formed. insert.

Thereafter, the cable ends 112a and 113a are inserted into the cable end insertion hole 16a of the first side wall 12a while passing the cables 112 and 113 through the slit 37. The drawn state of the cables 112 and 113 at this time is indicated by a two-dot chain line in FIG.
Subsequently, the cables 112 and 113 intersect on the cable guide 40 by twisting the base bracket 2 in a normal direction (indicated by a solid line in FIG. 9). The cables 112 and 113 are accommodated in the guide groove 42 of the cable guide 40.

That is, in FIG. 9, the opening cable 112 is pulled out to the left, and the cable end 112 a of the opening cable 112 is inserted into the cable end insertion holes 16 a and 16 b on the right side of the holder guide 120.
On the other hand, in FIG. 9, the closing cable 113 is drawn rightward, and the cable end 113 a of the closing cable 113 is inserted into the cable end insertion holes 16 a and 16 b on the left side of the holder guide 120. The cables 112 and 113 drawn from the cable ends 112a and 113a are accommodated in the guide grooves 42 so as to intersect with each other on the cable guide 40.

  Here, in a state where the cable ends 112a and 113a are inserted into the cable end insertion holes 16a and 16b, the cable ends 112a and 113a are rotatable with respect to the cable end insertion holes 16a and 16b. For this reason, when the base bracket 2 is twisted in a normal direction, the cable ends 112a and 113a rotate, and the cables 112 and 113 can be easily crossed without being twisted.

  The lengths of the cables 112 and 113 are defined in such a manner that the base bracket 2 is in the normal direction (the state where the cables 112 and 113 intersect on the cable guide 40). Therefore, when the cable ends 112a and 113a are inserted into the cable end insertion holes 16a and 16b, respectively (when the direction of the base bracket 2 is turned upside down), the cables 112 and 113 are loosened. ing. For this reason, the cable ends 112a and 113a can be inserted into the cable end insertion holes 16a and 16b, respectively, with no tension applied to the cables 112 and 1113.

  The cable ends 112a and 113a are attached to the cable holder 11 and the orientation of the base bracket 2 is set to a normal orientation, and then the roller unit 1 is attached to the center rail 106. Thereby, the assembly of the roller unit 1 is completed.

  With this configuration, when tension is applied to the cables 112 and 113, the cable guide 40 is pressed, and this pressing force is transmitted to the cable holder 11. That is, the tension of the cables 112 and 113 is received by the entire holder guide 120 (the cable holder 11 and the cable guide 40).

  Further, since the cables 112 and 113 intersect on the cable guide 40, when the cables 112 and 113 are tensioned, the cable ends 112 a and 113 a press the cable end holding portion 34. That is, the cable end holding part 34 receives the load of the cable ends 112a and 113a and holds the cable ends 112a and 113a. On the other hand, the cable hook 35 functions to prevent the cable ends 112 a and 113 a from coming off from the cable end holding portion 34.

  As described above, in the first embodiment described above, the cable holder 11 and the cable guide 40 are integrally provided. Therefore, the tension applied to the cables 112 and 113 by both the cable holder 11 and the cable guide 40 can be reduced. Can receive. For this reason, the holding rigidity with respect to each cable 112,113 of the roller unit 1 can be maintained.

  Further, since the through hole 32 is formed in the cable holder 11 and the opening 45 is formed in the cable guide 40, the holder guide 120 is attached to the base bracket 2, and then added to the base bracket 2 and the holder guide 120. The vertical roller 21 can be assembled at once using the support shaft 23. For this reason, the assembly property of the roller unit 1 can be improved. Furthermore, since the through hole 32 and the opening 45 are formed, it is not necessary to form the cable holder 11 and the cable guide 40 so as to avoid the support shaft 23. For this reason, the cable holder 11 and the cable guide 40 can be reduced in size.

  Further, the curved portions 43 a and 44 a of the cable guide 40 are formed such that the opening area of the opening 45 is slightly larger than the area of the caulking portion 26 of the support shaft 23. For this reason, when the caulking portion 26 is formed on the end portion of the support shaft 23, the end portion of the support shaft 23 can be easily buckled and deformed from above the cable guide 40. Even if the caulking portion 26 is formed in advance at the end of the support shaft 23, the vertical roller 21, the through hole 32 of the cable holder 11 through the opening 45 from above the cable guide 40, The support shafts 23 can be inserted through the through holes 24 of the base bracket 2. For this reason, the assembly property of the roller unit 1 can further be improved.

The opening 45 of the cable guide 40 is formed on the guide groove 42. Thus, the cable guide 40 can be reduced in size by forming the opening 45 and the guide groove 42 at the same position.
Further, since the spacer 13 is integrally formed on the holder guide 120, even when both ends of the support shaft 23 are buckled and deformed, it is ensured that the holder base 12 and the vertical roller 21 are securely connected. A gap S is formed. Moreover, the spacer 13 is formed so as to contact the inner ring 21 a of the vertical roller 21. For this reason, the vertical roller 21 can be smoothly rolled and the roller unit 1 can be operated efficiently.

  The cables 112 and 113 are wired so as to intersect on the cable guide 40. For this reason, only by forming one guide groove 42 in one cable guide 40, the two cables 112 and 113 can be wired together in the guide groove 42. For this reason, the roller unit 1 can be reduced in size.

  Furthermore, cable end insertion holes 16a and 16b are formed in the cable holder 11, and the function of the cable end holding part 34 that receives the load of the cable ends 112a and 113a on the two side walls 12a and 12b, respectively, and the cable end holding part 34 And the function of the cable hook 35 for preventing the cable ends 112a and 113a from coming off from the cable end. For this reason, while being able to simplify the shape of the location concerning the cable holder 11, the operation | work which attaches each cable end 112a, 113a to the cable holder 11 can be made easy.

The cable guide 40 is disposed closer to the center rail 106 than the cable hook 35 in which the cable end insertion holes 16a and 16b are formed. In other words, the cables 112 and 113 in the locations accommodated in the guide grooves 42 of the cable guide 40 are separated from the holder base 12 (base bracket 2) of the cable holder 11 rather than the positions where the cable ends 112a and 113a are attached. The direction is shifted. In other words, the cables 112 and 113 at the locations accommodated in the guide grooves 42 of the cable guide 40 are wired in a form offset to the center rail 106 side from the position where the cable ends 112a and 113a are attached. ing.
Therefore, the cables 112 and 113 can be brought as close to the center rail 106 as possible. Therefore, even when the center rail 106 is configured by the straight portion 106a and the curved portion 106b, it is possible to suppress the change in the wiring path length of the cables 112 and 113 depending on the slide position of the roller unit 1. .

  Further, cylindrical cable ends 112a and 113a are provided at the other ends of the cables 112 and 113, respectively, and the holder guide 120 and the cables 112 and 113 are connected via the cable ends 112a and 113a. Accordingly, the cable ends 112a and 113a are rotatable with respect to the cable holder 11 around the axes of the cable ends 112a and 113a.

  For this reason, when the roller unit 1 is assembled, the base bracket 2 is temporarily turned upside down from the normal orientation, and after the cable ends 112a and 113a are assembled to the base bracket 2, the base bracket 2 is twisted to the normal orientation. It can be. Thus, even if the base bracket 2 is twisted, the cables 112 and 113 can be prevented from being twisted. Therefore, when assembling the cable ends 112a and 113a to the holder guide 120, the cables 112 and 113 can be bent, and the assembling work of the roller unit 1 can be facilitated.

  In the first embodiment described above, the case where the holder / guide 120 is attached to the base bracket 2, the vertical roller 21 is set, and the support shaft 23 is assembled thereafter is described. However, the present invention is not limited to this, and the assembling procedure of each part can be arbitrarily changed. For example, the support shaft 23 may be provided in the base bracket 2 in advance.

(Second Embodiment)
(Roller unit)
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same aspect as 1st Embodiment.
FIG. 10 is a perspective view of the roller unit 201 as viewed from above, and corresponds to FIG. 3 described above. FIG. 11 is a perspective view of the roller unit 201 as viewed from below.

  As shown in FIGS. 10 and 11, the difference between the first embodiment and the second embodiment is that the shape of the holder guide 120 of the first embodiment and the shape of the holder guide 220 of the second embodiment. Is in a different point. More specifically, in the holder guide 220 of the second embodiment, the cable holder 211 and the cable guide 240 are configured separately from each other. Further, the cable holder 211 and the cable guide 240 are each formed by pressing a metal plate. Hereinafter, the cable holder 211 and the cable guide 240 will be described in detail.

(Cable holder)
FIG. 12 is a perspective view of the cable holder 211.
As shown in FIGS. 10 to 12, the cable holder 211 has a holder base 212 that is formed long along the width direction of the base bracket 2. The holder base 212 is integrated with the base bracket 2 by welding or the like. The holder base 212 is formed in a substantially U-shaped cross section, and includes a bottom wall 212a in contact with the base bracket 2 and two side walls 212b and 212c (first first) formed rising from both sides in the short direction of the bottom wall 212a. Side wall 212b and second side wall 212c).

A central portion in the longitudinal direction of the bottom wall 212a is a base expansion portion 231 that is slightly bulged in the vertical direction. A substantially oval through-hole 232 that penetrates in the thickness direction is formed in the base enlarged portion 231.
The side walls 212b and 212c are notched at positions corresponding to the base enlarged portion 231. The notched portions of the side walls 212b and 212c and the base enlarged portion 231 are connected to the vertical roller arrangement portion 233. Has been. The vertical roller 21 is arranged on the vertical roller arrangement portion 233. A base end of the support shaft 23 that pivotally supports the vertical roller 21 is fixed to the base bracket 2 through a through hole 232 of the holder base 212.

  As shown in FIGS. 10 to 12, the height H <b> 1 of each of the side walls 212 b and 212 c is set to be substantially the same as the height of the end surface of the vertical roller 21 on the center rail 106 side. The width W2 between the side walls 212b and 212c is set to a width that allows the cables 112 and 113 to be inserted.

  Of the two side walls 212b and 212c, the first side wall 212b disposed on the upper side is formed in a substantially square shape in plan view. In addition, a cable end insertion hole 236a into which the cable ends 112a and 113a can be inserted is formed substantially at the center of the first side wall 212b. The first side wall 212b functions as the cable end holding portion 234 at the center in the longitudinal direction with the cable end insertion hole 236a as the center. On the other hand, both end sides in the longitudinal direction function as cable hooks 235.

In addition, of the two side walls 212b and 212c, the second side wall 212c disposed on the lower side is formed in a substantially C shape in a plan view in the vertical direction. The second side wall 212c includes a cable end holding portion 234 located on the center side in the longitudinal direction, and cable hooks 235 located on both ends in the longitudinal direction.
Further, the inner peripheral side of the second side wall 212c is a cable end insertion hole 236b. Moreover, since the cable end holding part 234 and the cable hook 235 are substantially C-shaped as a whole, the portion of the second side wall 212c that constitutes the cable hook 235 is located at the approximate center in the vehicle width direction. A slit 237 is formed.

Under such a configuration, the collar 243 is inserted into the cable end insertion hole 236a of the first side wall 212b and the cable end insertion hole 236b of the second side wall 212c. The collar 243 is formed with a slit 243a through which the cables 112 and 113 can be inserted.
The cable ends 112a and 113a are inserted into the cable end insertion holes 236a and 236b through the collar 243. In addition, the cables 112 and 113 are inserted through the slit 237 from the outside in the vertical direction of the second side wall 212c to the inside. The cable guide 240 is attached to the cable holder 211 configured as described above.

(Cable guide)
FIG. 13 is a perspective view of the cable guide 240.
As shown in FIGS. 10, 11, and 13, the cable guide 240 has a mounting portion 241 formed in a substantially L-shaped cross section. The mounting portion 241 includes a horizontal wall 241a that faces the horizontal roller mounting seats 9a and 9b, and a vertical wall 241b that bends and extends downward from the lower edge of the horizontal wall 241a.

  The horizontal wall 241a is formed long along the width direction of the base bracket 2 so as to straddle between the two horizontal roller mounting seats 9a, 9b. A through-hole 251 through which the support shafts 20a, 20b pivotally supporting the horizontal rollers 10a, 10b is formed in a portion of the horizontal wall 241a facing the horizontal roller mounting seats 9a, 9b. Each of the support shafts 20a and 20b protrudes above the lateral wall 241a through the through hole 251. The horizontal roller mounting seats 9a and 9b (base bracket 2) and the lateral wall 241a (cable guide 240) are integrated by the support shafts 20a and 20b.

  A bulging portion 252 that slightly bulges toward the center rail 106 side is formed at substantially the center in the longitudinal direction of the vertical wall 241b. Further, a guide portion 253 that extends downward and covers the center rail 106 side of the vertical roller 21 is integrally formed at a location corresponding to the bulging portion 252. In other words, the guide portion 253 is disposed on the opposite side of the cable holder 11 with the vertical roller 21 interposed therebetween.

The guide part 253 is for guiding the cable ends 112 a and 113 a of the cables 112 and 113 fixed to the cable holder 211. In the guide portion 253, a guide groove 242 is formed along the longitudinal direction of the vertical wall 241b. The cables 112 and 113 are wired in the guide groove 242.
In addition, a bead portion 254 is formed at a substantially center between the bulging portion 252 and the guide portion 253 so as to partially overlap the guide groove 242. The bead portion 254 is for increasing the rigidity of the vertical wall 241b and the guide portion 253. The bead portion 254 is formed in a circular shape when viewed from the inside and outside of the vehicle, and is formed to be slightly recessed toward the vertical roller 21 side.

  Further, the guide portion 253 is formed with tapered portions 255a and 255b on both longitudinal sides of the vertical wall 241b. The two taper portions 255a and 255b are formed so as to expand toward the base bracket 2 side. By forming the tapered portions 255a and 255b, the cables 112 and 113 drawn out from the cable ends 112a and 113a are smoothly wired in the guide groove 242 of the guide portion 253.

Therefore, according to the above-described second embodiment, it is possible to prevent the cables 112 and 113 from being forcibly bent between the cable ends 112a and 113a and the guide groove 242 of the guide portion 253. For this reason, damage of each cable 112,113 can be prevented.
Even when the cable holder 211 and the cable guide 240 are formed by pressing each metal plate, only one guide groove 242 is formed in one cable guide 240. The two cables 112 and 113 can be wired together. For this reason, the roller unit 201 can be reduced in size.

  Further, cable end insertion holes 236a and 236b are formed in the cable holder 211, and the function of the cable end holding portion 234 that receives the load of the cable ends 112a and 113a on the two side walls 212b and 212c, and the cable end holding portion 234, respectively. A cable hook 235 for preventing the cable ends 112a and 113a from coming off from the cable end. For this reason, while being able to simplify the shape of the location concerning the cable holder 11, the operation | work which attaches each cable end 112a, 113a to the cable holder 211 can be made easy.

  Further, the cable guide 240 is provided with a guide portion 253 closer to the center rail 106 than a portion where the cable end insertion holes 236a and 236b are formed. Therefore, the cables 112 and 113 can be brought as close to the center rail 106 as possible. Therefore, even when the center rail 106 is configured by the straight portion 106a and the curved portion 106b, it is possible to suppress the wiring path length of the cables 112 and 113 from being changed depending on the slide position of the roller unit 201. .

  Further, even when the cable holder 211 and the cable guide 240 are respectively formed by pressing a metal plate, when assembling the roller unit 201, the base bracket 2 is once turned upside down from the normal direction. After assembling the cable ends 112a and 113a to the base bracket 2, the base bracket 2 can be twisted to have a normal orientation. For this reason, when assembling each cable end 112a, 113a to the holder guide 220, each cable 112, 113 can be bent, and the assembly work of the roller unit 201 can be facilitated.

  The present invention is not limited to the above-described embodiment, and includes various modifications made to the above-described embodiment without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the cylindrical cable end 112a is provided at the other end of the opening cable 112, the cylindrical cable end 113a is provided at the other end of the closing cable 113, and the cable ends 112a and 113a are The case where it attaches to the cable holders 11 and 211 was demonstrated. However, the shape of the cable ends 112a and 113a is not limited to a cylindrical shape, and it is only necessary that the other ends of the cables 112 and 113 are attached to the cable holders 11 and 211 so as to be rotatable. For example, the other ends of the cables 112 and 113 may be attached to the cable holders 11 and 211 via cable ends of a ball field instead of the columnar shape.

1, 201 ... Roller unit 2 ... Base bracket (bracket)
11, 211 ... Cable holder 13 ... Spacer 21 ... Vertical roller (roller, rolling bearing)
21a ... Inner ring 21b ... Outer ring 23 ... Support shaft 26 ... Caulking portion 32 ... Through hole (holder side through hole)
34,234 ... Cable end holding portion 35,235 ... Cable hook 40,240 ... Cable guide 42,242 ... Guide groove 45 ... Opening portion (guide side through hole)
101 ... Vehicle body 103 ... Slide door 106 ... Center rail (guide rail)
110. Automatic sliding door opening / closing device (vehicle opening / closing body driving device)
111 ... Drive unit (drive device)
112 ... Opening cables 112a, 113a ... Cable end 113 ... Closing cable

Claims (8)

Each of a cable for opening and a cable for closing which supports a sliding door slidably along a guide rail provided in a vehicle body and is connected to a driving device for automatically opening and closing the sliding door. In the roller unit to which the other end is connected,
A bracket that is provided to straddle the guide rail and the slide door, and that supports the slide door at an end opposite to the vehicle body;
A spindle erected on the bracket;
A roller rotatably supported by the support shaft and rolling in the guide rail;
A cable holder disposed at a position where the support shaft of the bracket is erected, holding the other end of each of the opening cable and the closing cable;
A cable guide disposed on the opposite side of the cable holder across the roller and provided integrally with the cable holder to guide the opening cable and the closing cable;
With
In the cable holder, a holder side through-hole through which the support shaft can be inserted is formed,
A roller unit, wherein a guide-side through hole into which the support shaft can be inserted is formed in the cable guide. At least the end portion on the cable guide side of the support shaft has a caulking portion formed to have a diameter larger than the shaft diameter of the support shaft,
The roller unit according to claim 1, wherein a hole diameter of the guide-side through hole is set to be larger than an outer diameter of the caulking portion. In the cable guide, a guide groove for wiring the opening cable and the closing cable is formed,
The roller unit according to claim 1, wherein the guide-side through hole is formed in the guide groove. The roller is a rolling bearing having an inner ring and an outer ring,
4. A spacer is provided around the holder-side through hole of the cable holder so as to abut against the inner ring and to secure a gap between the cable holder and the roller. The roller unit according to any one of the above.   The said opening cable and the said cable for closure are each guided by the said cable guide in the state crossed on the said cable guide, The any one of Claims 1-4 characterized by the above-mentioned. Roller unit. Each of the other ends of the opening cable and the closing cable includes a columnar cable end,
The cable holder is
A cable end holding portion disposed on the side where the tension of the other end of each of the opening cable and the closing cable is applied;
A cable hook disposed on the opposite side of the cable end holding portion at the other end of each of the opening cable and the closing cable;
With
The roller unit according to any one of claims 1 to 5, wherein an outer peripheral portion of each cable end is sandwiched between the cable end holding portion and the cable hook.   By the cable guide, the opening cable and the closing cable are wired in a form offset from the other ends of the opening cable and the closing cable toward the guide rail. The roller unit according to any one of claims 1 to 6. The roller unit according to any one of claims 1 to 7,
The driving device to which one end of each of the opening cable and the closing cable is coupled;
An opening / closing body drive device for a vehicle, comprising:

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