JP5145093B2 - Power feeding device for slide structure - Google Patents

Description

  The present invention relates to a power supply apparatus for a slide structure that is mounted on a slide structure such as a slide door of an automobile and has a wire harness arranged along a slider and a swinging member along a horizontal guide rail.

  FIG. 8 shows an embodiment of a conventional power feeding device for a slide structure (see Patent Document 1).

  The power supply device 71 is mounted on a slide door 72 of an automobile, and is slidably engaged with a synthetic resin case (protector) 73, a horizontal guide rail 74 provided at a lower portion of the case 73, and the guide rail 74. Slider 75, upper vertical arm 76 provided on slider 75 so as to be rotatable in the vertical plane direction, lower horizontal arm 77 provided on slider 75 so as to be rotatable in the horizontal plane direction, and both arms 76, 77. And a wire harness 78 that is fixed to the case and inserted into the case.

  The case 73 includes a base portion and a cover portion (not shown). One end of the wire harness 78 is connected to an auxiliary machine or the like in the slide door, and the other end of the wire harness 78 is connected to the wire harness 79 on the vehicle body side. From the case 73 to the harness fixing portion 81 of the vehicle body 80, the wire harness 78 includes a corrugated tube (exterior member) made of synthetic resin on the outer periphery. The wire harness 78 is composed of a plurality of electric wires and a corrugated tube having a circular cross section.

  When the slide door 72 of FIG. 8 is fully closed, the slider 75 is positioned on the rear end side of the guide rail 74, and the slider 75 moves forward along the guide rail 74 as the slide door 72 is slid rearward and opened. The wire harness 78 swings in the front-rear direction as the arms 76 and 77 rotate. The horizontal distance from the slider 75 to the harness fixing portion 81 on the vehicle body side, that is, the length of the transition portion of the wire harness 78 does not change.

  FIG. 9 shows another embodiment of a conventional power feeding device for a slide structure.

  The power supply device 82 includes a case 83 made of synthetic resin, a horizontal guide rail 84 provided below the case 83, a slider 85 slidably engaged with the guide rail 84, and a horizontal rotation with respect to the slider 85. The swing member 86 is connected freely, and the wire harness 87 is routed from the top of the case 83 through the slider 85 and the hole of the swing member 86. The wire harness 87 includes a plurality of electric wires 87a and a corrugated tube 87b having a flat cross section (oval shape).

  In the fully closed state of the slide structure in FIG. 9, the slider 85 is positioned on the rear end side of the guide rail 84, the swinging member 86 is rotated rearward, and the slider 85 is moved as the slide structure is opened rearward. While moving forward along the guide rail 84, the wire harness 87 swings forward with the harness fixing portion 88 at the upper part of the case as a fulcrum, and at the same time, the swinging member 86 rotates together with the corrugated tube portion 87b of the wire harness 87. Move.

As a conventional power supply device (not shown) for a slide structure other than the above, in Patent Document 3, a guide rail is horizontally provided on a slide door of an automobile, and the slider is slidably engaged with the guide rail. One end of a pair of substantially V-shaped links is rotatably connected, the other end of the link is rotatably connected to a slide door, and a wire harness (electric wire) is routed along both links and the slider. Things are listed.
JP 2001-354085 A (FIGS. 1 to 2) Japanese Patent Laying-Open No. 2007-151377 (FIG. 5) JP 2001-197649 A (FIG. 1)

  However, in the conventional power feeding device of FIG. 8, when the lateral arm 77 swings back and forth with the vertical shaft 89 as a fulcrum as the slide door 72 is opened and closed, the bent portion 78 a of the wire harness 78 is applied. There is a concern that stress such as torsion and bending acts and the durability of the bent portion 78a may be lowered by repeated stress, and that the structure around the slider 75 is complicated and enlarged by the arms 76 and 77 protruding vertically and horizontally. There was a problem.

  In the conventional power feeding device of FIG. 9, the slider 85 is moved in accordance with the opening and closing of the slide structure in a state where the electric wire portion 87 a of the wire harness 87 is inserted and fixed in the vertical hole 90 of the slider 85. By moving back and forth, there is a concern that bending stress is applied to the electric wire portion 87a of the wire harness 87 at the periphery of the hole 90 of the slider 85, and the durability of the wire harness portion 87a may be lowered by repetition of the bending stress.

  In view of the above points, the present invention does not cause excessive stress to act on the wire harness in the slider portion along with the movement of the slider along the guide rail. An object of the present invention is to provide a power feeding device for a slide structure that can be enhanced.

  To achieve the above object, a power supply device for a slide structure according to claim 1 of the present invention includes a horizontal guide rail disposed on the slide structure side, and a slider slidably engaged with the guide rail. A holding member that is pivotally connected to the slider at a shaft portion on a vertical surface, a swinging member that is swingably engaged with the holding member, and the swinging member from above the guide rail. And a wire harness arranged horizontally on the fixed structure side.

  With the above configuration, as the slide structure is slidably opened / closed to the fixed structure, the slider moves forward / backward along the guide rail in the closing / opening direction (in the case of closing, the slider moves in the opening direction, and in the case of opening) Is moved in the closing direction), the swinging member swings in the closing and opening direction together with the wire harness. At this time, the holding member receives the bending force of the wire harness and rotates in the direction of the bending force. The bending stress of the wire harness is reduced. The direction of rotation is reversed when opening and closing. In the middle of the guide rail in the longitudinal direction, the holding member does not rotate and becomes a neutral horizontal position. In addition, the holding member rotates in the direction of the bending force, so that the wire harness portion is smoothly bent with a large radius from the swinging member to the upper portion of the guide rail, so that the space occupied by the wire harness portion is increased. Reduced. “On the vertical plane” means an imaginary vertical plane or a vertical plane of the slide structure.

  The power supply device for a slide structure according to a second aspect is the power supply device for the slide structure according to the first aspect, wherein the shaft portion projects from the holding member, and the shaft portion is rotated in the circumferential direction. A hole portion that is movably supported is provided.

  With the above configuration, the shaft portion of the holding member is rotatably engaged with the hole portion of the slider so that the holding member can be smoothly rotated. The tip of the shaft is engaged with the slider so as not to come out of the hole.

  The power supply device for the slide structure according to claim 3 is the power supply device for the slide structure according to claim 1 or 2, wherein the holding member is configured to divide the swing member so as to freely swing. Is provided.

  With the above configuration, the swinging member is incorporated into the holding member in a state where the annular part is divided, and the swinging member is swingably held by the holding member by uniting the annular part.

  A power supply device for a slide structure according to a fourth aspect is the power supply device for the slide structure according to any one of the first to third aspects, wherein the holding member and the slider are rotated at an angle of rotation of the holding member. Is provided with a stopper for regulating

  With the above configuration, when the stoppers are in contact with each other, further rotation of the holding member is restricted, and excessive bending and twisting of the wire harness due to excessive rotation of the holding member is prevented.

  A power supply device for a slide structure according to claim 5 is the power supply device for a slide structure according to any one of claims 1 to 4, wherein a case for fixing the guide rail is provided, and an upper portion of the case is provided. The wire harness is fixed in a swingable manner.

  With the above configuration, the wire harness is swingably protected in the case from the harness fixing portion at the upper part of the case to the swinging member. And since the holding member rotates in the direction of the bending force, the wire harness is smoothly bent in the case with a large radius, so that the height of the case is reduced.

  According to the first aspect of the present invention, the holding member rotates by receiving the bending force of the wire harness, so that the bending stress of the wire harness is reduced, the bending durability of the wire harness is improved, and The occupied space is reduced, and the power supply device can be downsized.

  According to the second aspect of the present invention, the holding member can be reliably supported by the slider so as to be freely rotatable with a simple structure.

  According to the third aspect of the invention, the swinging member can be easily and reliably assembled to the holding member by the split-type annular portion.

  According to the invention described in claim 4, by preventing the holding member from being excessively rotated by the stopper, the wire harness is prevented from being excessively bent and the durability of the wire harness is increased.

  According to the fifth aspect of the present invention, since the holding member rotates in the direction of the bending force of the wire harness and the wire harness is smoothly bent with a large radius within the case, the height of the case is reduced. Thus, the power supply device using the case can be made compact.

  1 to 2 show an embodiment of a power feeding device for a slide structure according to the present invention.

  The power feeding device 1 includes a case (protector) 3 that is fixed vertically to a sliding door (sliding structure) 2 of an automobile, a horizontal guide rail 4 provided at a lower portion of the protector 3, and slides on the guide rail 4. A substantially plate-like slider (sliding member) 5 that is freely engaged, a holding member 7 that is pivotally connected to the slider 5 by a horizontal shaft portion 6 (FIG. 3), and a holding member 7 A swinging member 8 that is swingably connected, and a wire harness that is routed through the holding member 7 and the swinging member 8 from the upper part of the case 3 to the harness fixing portion 9 on the vehicle body (fixed structure) side 10.

  The case 3 is formed in a rectangular shape with a base portion 3a and a cover portion 3b made of synthetic resin. The shape of the case 3 can be appropriately set according to the bent shape of the inner wire harness 10. The guide rail 4 is preferably made of a metal material and extends from the front end to the rear end of the case 3.

  As shown in FIG. 2, the wire portion 24 of the wire harness 10 is fixed to the upper rear end of the case 3 by fixing means such as a band to form a harness fixing portion 45. In the case, the electric wire portion 24 is routed in a curved shape from the harness fixing portion 45 to the holding member 7 and the swinging member 8, and the harness fixing portion 45 is used as a fulcrum by the forward and backward movement of the slider 5 (FIG. 3) along the guide rail 4. The case can be swung back and forth.

  As shown in FIG. 3, the guide rail 4 includes a pair of upper and lower guide portions 11 having a substantially U-shaped longitudinal section and a base wall portion 12 that connects the upper and lower guide portions 11 to each other. A groove 13 that allows the tip of the shaft portion 6 to escape (does not interfere) is formed horizontally in the center in the direction. The guide portion 11 includes a vertical inner wall 11a that is flush with the base wall portion 12, a bowl-shaped vertical outer wall 11b that faces the inner wall 11a, and a horizontal connecting the inner wall 11a and the outer wall 11b. It consists of a connecting wall 11c. The guide rail 4 is fixed to the base portion 3a of the case 3 by screwing or the like. As shown in FIG. 1, the base portion 3a is set to have a short hem side so that the holding member 7 and the swinging member 8 are exposed to the outside.

  A pair of upper and lower flange portions 14 of the plate-like slider 5 are slidably engaged with the guide portion 11 of the guide rail 4 (FIG. 3). As shown in FIGS. 4A and 4B, the slider 5 is preferably composed of a pair of upper and lower flange portions 14 and a central thick plate portion 15 made of a synthetic resin having a low friction coefficient. As shown in FIG. 3, the contact area with the holding member 7 may be increased by widening the central plate portion 15 in a tapered shape (the widened portion is indicated by reference numeral 15 a). A circular hole 16 through which the shaft portion 6 is inserted is formed through the center of the plate portion 15.

  As shown in FIG. 4A, the shaft portion 6 protrudes from the center of the vertical substrate portion 17 of the holding member 7. The holding member 7 includes a synthetic resin holding member main body 7 ′, and a synthetic resin semi-annular member 19 (FIG. 1) that engages with the semi-annular portion 18 at the upper end of the holding member main body 7 ′ to form an annular portion. Consists of. The semi-annular portion 18 and the semi-annular member 19 are locked to each other by locking means such as a flexible locking frame piece and a locking protrusion 20. For convenience, reference numerals 18 and 19 are referred to as split-type annular portions.

  The holding member body 7 ′ includes the vertical substrate portion 17, the shaft portion 6 projecting from the center of the substrate portion 17, a semi-annular portion 18 projecting horizontally from the upper end portion of the substrate portion 17, and a substrate portion 17 includes a bottom plate portion 21 that protrudes horizontally from the lower end portion of 17, a vertical hole portion 22 formed in the bottom plate portion 21, and an annular wall 23 that protrudes to the upper peripheral edge of the hole portion 22.

  As shown in FIGS. 1 and 3, a plurality of electric wires 24 of the wire harness 10 are inserted inside a horizontal annular portion (represented by reference numeral 19) at the upper end of the holding member 7. The plurality of electric wires 24 may be covered with an exterior member such as a flexible mesh tube in the case 3.

  As shown in FIG. 3, the shaft portion 6 is rotatably inserted into the hole portion 16 of the slider 5, and the holding member 7 is supported by the slider 5 so as to be rotatable in the vertical plane direction around the shaft portion 6. “Vertical plane direction” means “along an imaginary vertical plane”. The tip portion of the shaft portion 6 protrudes from the hole portion 16 and is positioned in the groove 13 of the guide rail 4.

  For example, a circumferential groove (not shown) is formed at the tip portion of the shaft portion 6, and a C ring or the like is engaged with the circumferential groove so that the shaft portion 6 is engaged with the hole portion 16 of the slider 5 without coming out. Alternatively, a bolt may be used as the shaft portion 6, the male screw portion of the bolt may be screwed into the female screw portion of the substrate portion 17 of the holding member 7, and the bolt head portion may be accommodated in the groove 13 of the guide rail 4.

  The shaft portion 6 is preferably made of metal in order to ensure strength, and the metal shaft portion 6 can be fixed to the substrate portion 17 of the holding member 7 by insert molding or the like. If the strength is ensured, the resin shaft portion 6 may be integrally molded with the substrate portion 17 of the holding member 7. It is also possible to project the shaft portion (6) on the slider 5 and to provide the holding member 7 with a hole portion (16) for engaging the shaft portion (6) so as to be rotatable in the circumferential direction.

  As shown in FIGS. 1 and 3, the swing member 8 made of synthetic resin is held by the holding member 7 so as to be rotatable in the horizontal direction. The swinging member 8 is formed so as to be divided into an upper member 8a and a lower member 8b, and the wire harness 10 is inserted into the inner insertion space 25 with both the members 8a and 8b being opened. The wire harness 10 and the wire harness 10 are assembled to the holding member 7 in a state where the wire 8 is closed and locked by a locking means such as a flexible locking frame 32 and a locking projection (in this case, the upper semi-annular member 19 is The upper semi-annular member 19 is assembled, and the swing member 8 is held together with the wire harness 10 by the holding member 7 so as to be rotatable.

  On the bottom surface of the lower member 8b, a short columnar boss portion 26 that is engaged with the inside of the annular wall 23 of the holding member 7 is formed to project. The lower member 8b includes a horizontal bottom wall 27, a vertical back wall 28, a boss portion 26 of the bottom wall 27, and a semi-annular wall 29 (FIG. 1) integrally formed on the upper side of the bottom wall 27. Have. The upper member 8a has a vertical side wall 31 on both sides joined to the back wall 28 of the lower member 8b, and a semi-annular wall 30 protruding from the side wall 31 in the horizontal direction.

  The semi-annular walls 29 and 30 of both members 8a and 8b are combined to form an oval annular wall in this example, and a horizontal (laterally) harness insertion hole 33 is formed inside the annular wall. A harness insertion hole 34 in the vertical direction (upward) is formed by being surrounded by 28 and both side walls 31. Both insertion holes 33 and 34 communicate with each other in the orthogonal direction to form a substantially L-shaped harness insertion hole (indicated by reference numeral 25). The harness insertion hole (25) has an upper opening (34) and a side opening (33).

  An arc-shaped rib (not shown) projects from the inner peripheral surface of the annular wall 30, and the rib engages with a concave groove on the outer periphery of the corrugated tube 41 of the wire harness 10, so that one end of the corrugated tube 41 is annular. Fixed to the wall 30. The corrugated tube 41 of this example is of a flat cross-section (oval shape) with improved horizontal flexibility and space saving. The other end portion of the corrugated tube 41 is similarly fixed to the harness fixing portion 9 on the vehicle body side in FIG.

  As shown in FIGS. 5A to 5C, the rotation angle θ of the holding member 7 with respect to the slider 5 is regulated by stoppers 42 and 43. In this example, two protrusions 42 in the direction of 180 ° are provided on the outer periphery of the base end of the shaft portion 6 of the holding member 7, and a pair of circular arcs having a diameter larger than that of the hole portion 16 on the inlet side of the hole portion 16 of the slider 5. The groove 44 is provided, and the protrusion 42 abuts against the end surface (end wall) 43 of the groove 44, thereby preventing further rotation of the holding member 7.

  This rotation restriction is for preventing an excessive twist of the electric wire 24 in the corrugated tube 41. In addition to providing the stoppers 42 and 43 as the rotation restricting structure in the shaft portion 6 and the hole portion 16, for example, it is also possible to provide them on the vertical substrate portion 17 of the holding member 7 and the plate portion 15 of the slider 5.

In FIG. 1, the diagram on the right side shows the fully closed state of the slide door 2, and the diagram on the left side shows the fully opened state of the slide door 2 with solid lines for convenience. 2, the right holding member 7, the swinging member 8, and the wire harness 10 correspond to the fully opened state of the left sliding door 2 in FIG.
The left holding member 7, the swinging member 8, and the wire harness 10 are shown by solid lines for convenience corresponding to the fully closed state of the right sliding door 2 in FIG. 1.

  When the slide door 2 is fully closed, the wire harness 10 is pulled rearward with the harness fixing portion 9 on the vehicle body side as a fulcrum as shown in the right side of FIG. 1 and the left side of FIG. , The swinging member 8 swings backward, and the holding member 7 rotates together with the swinging member 8 in the clockwise direction on the imaginary vertical surface as shown by the arrow. As a result, the harness portion led out from the case 3 to the vehicle body side (crossover portion) through the swing member 8 is bent into a large curved shape (the bent portion is indicated by reference numeral 24a), and the bending stress applied to the harness portion 24a. Is reduced.

  When the non-rotatable holding member 7 ″ integrated with the slider 5 is used as shown on the right side of FIG. 6 and the left side of FIG. 7, the case 3 ′ passes the swinging member 8 toward the vehicle body side. The derived harness portion 24 'is bent in a substantially crank shape (the bent portion is indicated by reference numeral 24a') and is subjected to a large bending stress, and compared with this, the structure using the rotatable holding member 7 in FIG. The stress of the wire harness 10 is reduced and the durability is improved.

  When the slide door 2 is slid rearward and fully opened (the slide door 2 moves away from the outside of the vehicle body immediately after opening) as shown in the left diagram of FIG. 1 and the right diagram of FIG. 10 is pulled forward with the harness fixing portion 9 on the vehicle body side as a fulcrum, while the slider 5 moves forward along the guide rail 4, the swinging member 8 swings forward and the holding member 7 swings. The member 8 is integrally rotated with the member 8 on the imaginary vertical surface so as to move upward in the counterclockwise direction as indicated by an arrow. As a result, the harness portion 24 led out from the case 3 to the vehicle body side (crossover portion) through the swing member 8 is bent into a large curved shape (the bent portion is indicated by reference numeral 24b), and the harness portion 24 is bent. Stress is reduced.

  As shown on the left side of FIG. 6 and the right side of FIG. 7, when a non-rotatable holding member 7 ″ integrated with the slider 5 is used, the case 3 ′ passes the swinging member 8 toward the vehicle body side. The lead-out harness portion 24 ′ is bent in a substantially L shape (the bent portion is indicated by a reference numeral 24b ′) and receives a large bending stress, and the structure using the rotatable holding member 7 of FIG. Thereby, the stress of the wire harness 10 is reduced and durability is improved.

  When the non-rotatable holding member 7 ″ shown in FIG. 7 is used, the wire harness 10 ′ bends with a large bending stress in the case 3 ′, so that the height H ′ of the case 3 ′ is reduced in order to reduce the stress. On the other hand, by using the rotatable holding member 7 as shown in Fig. 2, a large bending stress is not applied to the wire harness portion 24 in the case, and the wire harness 24 is Since it bends smoothly with a large radius, the height H of the case 3 can be reduced, and the power supply device 1 can be made compact by reducing the height of the case 3.

  In the above embodiment, the case 3 is used. However, the case 3 may be omitted, and the guide rail 4 may be directly fixed to the metal door panel 2a of the slide door 2 or the like. In this case, the wire harness portion 24 is fixed to the door panel or the like so as to be swingable in the front-rear direction by a harness fixing portion (45) such as a metal fitting on the upper side of the guide rail 4. As the height of the case 3 is reduced, the space occupied by the wire harness portion 24 from the upper harness fixing portion 45 to the upper opening of the swinging member 8 in the slide structure 2 is reduced.

  Moreover, in the said embodiment, although the corrugated tube 41 was used for the transition part of the wire harness 10, it replaced with the corrugated tube 41, used other bellows-like or a flexible protective tube, rain water other than the sliding door of a motor vehicle, The corrugated tube 41 can be omitted in a slide structure that is not exposed to dust or the like.

It is a perspective view which shows one Embodiment of the electric power feeder for slide structures which concerns on this invention corresponding to the time of a fully closed and fully opened slide structure. It is a front view which similarly shows a power supply device corresponding to the time of fully closed and fully opened of a slide structure. It is a longitudinal cross-sectional view which shows the principal part of an electric power feeder. (A) is a disassembled perspective view which shows one form of the structure of a holding member and a slider, (b) is a perspective view which shows a slider. (A) is a front view which shows the rotation control angle of a holding member, (b) is a side view similarly, (c) is a front view which similarly shows a rotation control state. It is a perspective view which shows the harness bending form of the electric power feeder at the time of using a non-rotating holding member. It is a front view which similarly shows the electric power feeder using a non-rotating holding member. It is a perspective view which shows one form of the electric power feeder for the conventional slide structure. It is a perspective view which shows the other form of the electric power feeder for the conventional slide structure.

Explanation of symbols

1 Power feeding device 2 Sliding door (sliding structure)
DESCRIPTION OF SYMBOLS 3 Case 4 Guide rail 5 Slider 6 Shaft part 7 Holding member 8 Swing member 10 Wire harness 16 Hole part 18, 19 Split-type annular part 42, 43 Stopper 45 Harness fixing part (theta) Rotation angle

Claims (5)

  A horizontal guide rail disposed on the slide structure side, a slider slidably engaged with the guide rail, a holding member pivotally connected to the slider on a vertical surface at a shaft portion, and the holding A sliding structure comprising: a swinging member engaged with a member so as to swing freely; and a wire harness horizontally routed from above the guide rail to the fixed structure side through the swinging member Power supply device.   2. The power feeding device for a slide structure according to claim 1, wherein the holding member is provided with the shaft portion projecting, and the slider is provided with a hole portion that rotatably supports the shaft portion in a circumferential direction. .   The power supply apparatus for a slide structure according to claim 1 or 2, wherein the holding member is provided with a split-type annular portion that holds the swinging member in a swingable manner.   The power supply device for a slide structure according to any one of claims 1 to 3, wherein the holding member and the slider are provided with a stopper that defines a rotation angle of the holding member.   The power supply device for a slide structure according to any one of claims 1 to 4, further comprising: a case for fixing the guide rail, wherein the wire harness is swingably fixed to an upper portion of the case. .

Images