JP5053005B2 - Protector base structure for power supply - Google Patents

Description

  The present invention relates to a protector base structure for power supply in which a power supply device for constantly supplying power from a fixed structure such as a vehicle body to a slide structure such as a slide door of an automobile is attached to the slide structure or the like.

  FIG. 9 shows a first form of a conventional power feeding device for a slide structure (see Patent Document 1).

  The power feeding device 51 includes a guide rail 53 provided horizontally on a slide door 52 of an automobile, a slider 54 slidably engaged with the guide rail 53, one end connected to the slider 54, and the other end to the guide rail 53. A pair of openable and closable mountain-shaped links 55 and 56 are provided.

  The wire harness 57 is routed from the link arm 55 to the fixing portion 59 on the vehicle body 58 side while being bent in a substantially U shape via the slider 54, and one end of the wire harness 57 is connected to the wire harness 60 on the slide door side by a connector. The other end is connected to the vehicle body side wire harness 61 by a connector.

  As the slide door 52 is opened and closed, the pair of links 55 and 56 opens and closes (extends and contracts), and the slider 54 moves along the guide rail 53 and is always positioned in the vicinity of the fixed portion 59 on the vehicle body side.

  FIG. 10 shows a second form of a conventional power feeding device for a slide structure (see Patent Document 2).

  The power supply device 62 is configured by connecting three long and short links 65 between a slide door 63 and a vehicle body 64 of an automobile so as to be swingable in a horizontal direction. A wire harness 66 is connected to the vehicle along each link 65. It is routed from the body 64 to the slide door 63.

  As the slide door 63 opens and closes, the links 65 rotate in opposite directions to absorb the amount of movement of the slide door 63.

  FIGS. 11-12 shows the 3rd form of the conventional electric power feeder for slide structures (refer patent document 3).

  The power supply device 67 has a protector (case) 32 made of synthetic resin assembled to a slide door 68 of an automobile, and one end side is fixed in the protector, and the wire harness 69 is supported and biased upward at the other end side. A metal leaf spring 70 is provided. The protector 32 includes a base 32a and a cover 32b (FIG. 13).

  The wire harness 69 is routed from the opening 71 at the front end of the protector 32 to the slide door side, passes from the elongated opening 72 at the lower end of the protector 32 through the crossing space 73, and the harness fixture 12 near the step on the vehicle body 74 side (FIG. 13) and is connected from the harness fixture 12 to a wire harness (not shown) on the vehicle body side.

  The wire harness 69 is composed of a plurality of insulated coated electric wires and a flexible corrugated tube made of synthetic resin that covers the wires. A corrugated tube having an oblong cross section (flat type) is routed between the protector 32 and the harness fixture 12 with the long diameter portion being vertical.

When the sliding door 68 of FIG. 11 is fully closed, the wire harness 69 is pulled backward with the harness fixture 12 as a fulcrum while bending the leaf spring 70 downward, and when the sliding door 68 is fully opened (FIG. 12 shows a state immediately before full opening). The wire harness 69 is pulled forward with the harness fixture 12 as a fulcrum while bending the leaf spring 70 downward, and when the slide door 68 is half-opened, the wire harness 69 hangs down as shown by a chain line in FIG. However, it is urged upward by the leaf spring 70 to absorb the excess length, and it is possible to prevent the wire harness 69 from being drooped and being caught when the door is closed.
JP 2001-122054 (FIG. 1) JP 2001-151042 A JP 2002-17032 A (FIGS. 4 to 5)

  However, in the first power supply device 51 of FIG. 9 described above, there is a problem that the number of parts and the weight increase due to the long guide rail 53 and the links 55 and 56, and the wire harness 57 has a shaft portion 66 for supporting the link arm. There is a concern that the durability of the wire harness 57 may be reduced by interfering with the door or the like or with the door-side components. Further, in the second power supply device 62 of FIG. 10 described above, there is a concern that the wire harness 66 may be bent in a complicated manner with the rotation of each link 65 and the durability of the wire harness 66 may be lowered.

  Further, in the third power supply device 67 of FIG. 11 described above, the protector 32 is increased in size in order to absorb (accommodate) the extra length of the wire harness 69 along the leaf spring 70 into the protector 32 in a curved shape. There is a concern that it occupies a large area inside the slide door 68 and the degree of freedom of arrangement of other auxiliary machines is limited. Moreover, in order to bend and accommodate the wire harness 69 in the protector, a long wire harness 69 is required (corrugated tube and electric wire part becomes long), and there is a concern that the cost is increased and the weight is increased.

  These concerns can occur in the same way when each power supply device is applied to a slide structure such as a slide door of a train or the like, a manufacturing device, a detection device, or the like as well as a slide door of an automobile. . In this case, the vehicle body, the apparatus main body, and the like are collectively referred to as a fixed structure.

  In view of the above-described points, the present invention can reduce the size and cost of a power feeding structure, and can eliminate the damage caused by interference of the wire harness and improve the durability of the wire harness. An object is to provide a protector base structure.

In order to achieve the above object, a protector base structure for power supply according to claim 1 of the present invention is provided with a shaft portion on the protector base, and a link arm is rotatably supported on the shaft portion. the harness holder is provided, the wire harness to the harness holder is held, in the protector base in the vicinity of the shaft portion, a curved partition wall to prevent interference between the wire harness and the shaft portion, the protector base A portion of the link arm near the shaft portion facing the protector base that is close to the projecting tip of the partition wall and is pivotably positioned so as to be rotatable. The harness holder is led out to the outside through the outside of the partition wall along the protector base .

With the above configuration, the link arm rotates along the protector base with the shaft portion as a fulcrum, and the wire harness led out from the harness holder swings along the protector base. When the protector base is disposed on the slide structure, the wire harness is led out (wired) toward the fixed structure. The harness holder may be integral with the link arm or may be rotatable separately. When the link arm is rotated, the wire harness is led out along the partition wall, and comes into contact with the partition wall, thereby preventing the wire harness from entering the shaft portion side and preventing the shaft portion and the wire harness from interfering with each other. The link arm rotates on the protruding front end side of the partition wall, and the partition wall is located between the front surface of the protector base and the back surface of the link arm.

Protector base structure for power supply according to claim 2, claim 1 in the protector base structure for power feeding according, some or all the partitions of the elastic member for urging the front Symbol link arm to the harness excess length absorbing direction It is arranged inside.

  With the above configuration, the wire harness abuts against the partition wall when the link arm is rotated, and interference with the elastic member is prevented. For example, the wire harness is pulled out from the protector base when the slide structure is fully opened and closed, and is pulled by the urging force of the elastic member when the slide structure is half-opened to be absorbed.

  The protector base structure for power supply according to claim 3 is the protector base structure for power supply according to claim 1 or 2, wherein the protector base has a wall portion for restricting rotation of the link arm following the partition wall. It is provided.

  With the above configuration, the link arm or the harness holder abuts against the wall portion when the link arm is rotated, and further rotation of the link arm is prevented. The wire harness bends smoothly along the partition wall from the rotation-preventing wall.

  The protector base structure for power supply according to claim 4 is the protector base structure for power supply according to any one of claims 1 to 3, wherein the partition wall is provided with a wall portion for leading out the harness on the wire harness fixing side. It is characterized by that.

  With the above configuration, the harness lead-out wall portion also serves as a part of the partition wall, and the wire harness contacts the harness lead-out wall portion and is prevented from entering the shaft portion side. The wire harness is routed to, for example, the slide structure side to which the protector base is fixed while being fixed on the harness lead-out wall side.

  The protector base structure for electric power feeding which concerns on Claim 5 is the protector base structure for electric power feeding in any one of Claims 1-4. WHEREIN: It passes between the said protector base and the said link arm from the said harness holder. The wiring harness is routed.

With the above structure, a wire harness harness holder along the protector base surface (in contact with) is routed, while passes between the back surface and the protector base surface of the link arm, is supported by the rear surface of the link arm Then, lifting (jumping out) from the surface of the protector base is prevented, and the protector base is led out from the harness lead-out portion to the protector base mounting side (for example, the slide structure side).

  The protector base structure for electric power feeding concerning Claim 6 is a protector base structure for electric power feeding in any one of Claims 2-5. WHEREIN: The part which supports one side of the said elastic member is the said protector base inside the said partition. And the link arm is provided with a portion for supporting the other of the elastic members.

  With the above configuration, one of the elastic members is supported by the protector base inside the partition wall without worrying about interference with the wire harness. It is preferable that the other elastic member is supported by the link arm in a range inside the partition wall. As the elastic member, a torsion spring, a leaf spring, a coil spring, or the like can be used.

  A protector base structure for feeding according to claim 7 is the protector base structure for feeding according to any one of claims 1 to 6, wherein the protector base is joined to a large separate protector base. The harness holder is located along a protector base.

  With the above configuration, the large protector base is joined to the small protector base to protect the link arm and the harness holder from interference with the outside with a large area. It is possible to change the shape and size of a separate protector base according to the vehicle type, etc., and to share a small protector base.

  According to the first aspect of the present invention, since the interference between the wire harness and the shaft portion is prevented by the partition wall, the wire harness is prevented from being damaged or deformed due to the interference, the durability of the wire harness is increased, and the electric power is always supplied. Reliability is improved. In addition, by using only the protector base instead of the conventional bulky protector, the structure can be reduced in size and cost, space saving on the mounting side of the slide structure, etc., and the flexibility of layout of other parts can be expanded. It becomes.

  According to the second aspect of the present invention, since the interference between the wire harness and the elastic member is prevented by the partition wall, damage or deformation of the wire harness due to the interference is prevented, the durability of the wire harness is increased, and the power is always supplied. Reliability is improved.

  According to the third aspect of the present invention, unnecessary rotation of the link arm is prevented, so that the link arm can be rotated smoothly and efficiently, and the harness extra length can be absorbed smoothly without waste. Further, the wire harness is bent smoothly from the wall portion for preventing rotation along the partition wall, and the bending stress of the wire harness is relieved. In addition, the height of the power feeding device can be reduced by preventing the wire harness from coming into contact with the rotation-preventing wall and protruding further outside.

  According to the invention described in claim 4, the protector base structure is simplified, miniaturized, and reduced in cost because the harness lead-out wall portion also serves as a part of the partition wall.

  According to the invention of claim 5, since the wire harness is routed while being supported in the protector base thickness direction between the protector base and the link arm, the interference between the wire harness and the outside can be achieved without using the protector cover. The structure can be simplified, reduced in size, and reduced in cost by omitting the protector cover.

  According to the invention of claim 6, since at least one of the elastic members is located inside the partition wall and interference with the wire harness is prevented, damage or deformation of the wire harness accompanying interference is prevented, and the wire harness is prevented. As a result, the reliability of continuous power supply is improved.

  According to the seventh aspect of the invention, by sharing a small protector base according to the vehicle type or the like and changing the large protector base, it is possible to easily cope with a difference in specifications at a low cost.

1 to 5 show an embodiment of a protector base structure for feeding according to the present invention. 1 shows a protector base assembly 1a including a protector base 2 and a link arm assembly 21, FIGS. 2 to 3 show a protector base 2, FIG. 4 shows a link arm assembly 21, and FIG. 5 shows a wire attached to the protector base assembly 1a . Each embodiment of the electric power feeder 1 (schematic diagram) which wired the harness 13 is each shown.

  As shown in FIGS. 1 to 3, the protector base 2 is made of synthetic resin as a material, and a shaft portion 3 that rotatably supports the link arm 4 is provided on the surface of a rectangular substrate portion 7. 3, a curved partition wall (harness guide wall) 79 for preventing interference between the wire harness 13 (FIG. 5) and the shaft portion 3 and the spring 5 is formed up and formed inside the partition wall 79. The shaft portion 3 is disposed on the base plate portion 7 a, the spring support protrusion 23 having a substantially hook shape is provided on the base plate portion 7 a adjacent to the bent inner surface 79 a of the partition wall 79, and one outer surface of the partition wall 79 in the vicinity of the spring support protrusion 23. The harness lead-out portion 82 is provided subsequent to 79b, and the rotation restricting wall portion 10 that prevents the link arm 4 from popping out is provided continuously to the other side of the partition wall 79.

  The protector base 2 is disposed vertically (vertically) on a slide door (not shown) of the automobile, the shaft portion 3 is located on the upper front side of the substrate portion 7, and the partition wall 79 is a short serving as a harness leading wall on the front end side. A vertical wall portion 78 and a wall portion curved in a curved shape from the lower end of the harness leading-out wall portion 78 toward the rear upper portion (represented by reference numeral 79) are provided. At the upper end, it continues across the horizontal regulating wall 10.

  The vertical wall portion 78 constitutes a harness lead-out wall together with the longer vertical parallel wall portion 8 at the front end of the substrate portion 7, and an opening 15 is formed on the upper end side of the harness lead-out walls 8 and 78. A hole frame portion 81 for inserting a band as a harness fixing portion is provided in the portion, and a slit 15 a for inserting the band is formed in the other side portion of the opening 15 by notching.

  The shaft portion 3 is formed in a hollow cylindrical shape, is raised from a circular seat portion 83 on the surface of the substrate portion 7a, and a pair of retaining members that are in sliding contact with the surface of the link arm 4 on the outer surface of the tip portion of the shaft portion 3. The flange portion 46 is formed to protrude. The flange 46 passes through a pair of axial grooves 24b in the hole 24 (FIG. 4) of the link arm 4 and protrudes to the surface side of the link arm 4. When the link arm 4 is rotated in the actual use state, 24b is set so as not to align with the flange 46. Instead of the flange portion 46, the link arm 4 can be pivotally locked to the shaft portion 3 with a stop ring, a stop nut or the like (not shown).

  In the vicinity of the shaft portion 3, a curved wall portion (79 is substituted) of the partition wall 79 is located. The height of the shaft portion 3 is formed higher than the height of the partition wall 79, and the link arm 4 supported by the shaft portion 3 as shown in FIG. 1 has a slight (diameter of the wire harness 13) between the protruding end 79 c of the partition wall 79. It intersects in a freely rotating manner with a narrower gap.

  As shown in FIGS. 1 and 4, the link arm 4 has a hole portion 24 through which the shaft portion 3 of the protector base 2 is inserted on the front end (base end) side. The tip of the boss 24a is pivotally in contact with the surface of the seat 83 of the protector base 2, and the link arm 4 has a length corresponding to the length of the boss 24a outside the partition wall 79. A space 84 for inserting a wire harness is formed between the back surface and the surface of the substrate portion 7. The partition wall 79 prevents the wire harness 13 from entering the inside of the partition wall 79, that is, the shaft portion 3 side.

  The distal end side of the link arm 4 is bent in a substantially square shape in an inclined downward direction (the bent portion is indicated by reference numeral 4a). In the example of FIG. A bearing plate 19 is integrally provided via the width portion 18, and the harness holder 6 is rotatably connected to the bearing plate 19 by a horizontal shaft portion 20. In the example of FIG. 1, the harness holder 6 is rotatably provided via a shaft portion 20 at a rotating front end (rear end) portion of the link arm 4. A link arm assembly 21 is configured by the link arm 4 and the harness holder 6.

  A hook-shaped spring support piece (support portion) 22 that hooks the projecting piece 5a in the latter half of the torsion spring 5 (FIG. 5) protrudes from the upper portion of the link arm 4 on the back surface side in the longitudinal direction. The protruding piece 5b at the front end of the torsion spring 5 is supported by being hooked on a spring support protrusion (support portion) 23 on the protector base side. The central winding portion 5c of the torsion spring 5 is disposed on the outer periphery of the boss portion 24a. The link arm 4 is preferably made of synthetic resin or metal.

In the example of FIG. 4, the harness holder 6 includes a holder base 6a and a holder cover 6b made of synthetic resin. The holder base 6a includes a rectangular hook-shaped portion (portion for holding the corrugated tube 17 ) 26, a short hook portion 27 protruding to one side of the hook-shaped portion, and a long protrusion protruding to the other side of the hook-shaped portion 26. It is comprised with the plate-shaped part (part which connects the link arm 4) 28. FIG. The holder cover 6 b includes a central rectangular cover portion 40 and flanges 41 on both sides having bolt insertion holes 42.

  The upper end portion of the plate-like portion 28 of the holder base 6a protrudes slightly longer than the flange-like portion 26, and a hole portion 29 through which the shaft portion 20 is inserted is provided at the upper end portion. The shaft portion 20 has a collar portion 20a for retaining the same as the shaft portion 3 on the base end side, and the hole portion 29 has a groove 29a that penetrates the collar portion 20a. It is set so as not to be aligned with the flange 20a.

  Bolt insertion holes 42 for fixing the holder cover 6b to the flange portion 27 and the plate-like portion 28 of the holder base 6a are provided symmetrically. A rib 31 protrudes from the periphery of the upper end portion of the plate-like portion 28, and the concern that the upward bent portion 13 c of the wire harness 13 interferes with the shaft portion 20 is eliminated by the rib 31.

  The hook-shaped portion 26 is configured by being surrounded on both sides by both side walls 33 and a bottom wall 34, and a plurality of strips that engage with the concave grooves in the circumferential direction of the corrugated tube 17 on the inner peripheral surfaces of the wall portions 33, 34. Ribs 35 are formed to protrude. A plate-like portion 28 is disposed orthogonally to an intermediate portion in the height (standing) direction of one side wall 33. The bottom wall 34 is disposed lower than the plate-like portion 28.

  The bottom wall 34 has an inclined portion 34a and a flat extension portion 34b following the inclined portion 34a on the upper end side, and an insulation lock through hole, that is, an electric wire portion of the wire harness 13 (FIG. 5) led out from the corrugated tube 17 ( A pair of holes 36 are provided for inserting a band for binding and fixing the substitute (reference numeral 13). The electric wire portion 13 is fixed to at least one end of the corrugated tube 17 with a tape or a band. The electric wire portion 13 can be freely inserted into the corrugated tube without being fixed to the corrugated tube 17. The wire harness 13 includes a plurality of electric wires (electric wire portions) and a corrugated tube 17.

  It is preferable that a plurality of ribs (35) that engage with the circumferential grooves of the corrugated tube 17 are also formed to protrude on the inner peripheral surface of the holder cover 6b. After setting the corrugated tube 17 to the holder base 6a, the holder cover 6b is mounted. A tube insertion space 37 is formed between the holder base 6a and the holder cover 6b.

  Since the hook-like portion 26 of the holder base 6 a is disposed adjacent to the plate-like portion 28 having the shaft hole 29, the wire harness 13 passing through the hook-like portion 26 is arranged offset from the shaft portion 20. Searched for. Thereby, the upward bending part 13c of the electric wire part of the wire harness 13 is spaced apart from the axial part 20, and is wired by a big bending radius, and the bending stress concerning an electric wire part is reduced.

  It is also possible to eliminate the flange portion 27 of the holder base 6a and connect the holder cover 6b to the holder base 6a so as to be openable and closable with a thin and integral hinge (not shown). In the example of FIG. 1, a holder cover (not shown) is fixed to the holder base of the harness holder 6 (represented by reference numeral 6) by the locking means 38.

  The locking means 38 is a locking claw provided on both side walls 33 of the holder base 6 and an engaging recess (not shown) on the holder cover side. The corrugated tube 17 of the wire harness 13 may be fixed to the holder base 6 with a band (not shown) instead of the locking means 38, and the holder cover may be omitted. The band is inserted through the hole 39 of the plate-like portion 28 adjacent to the flange-like portion 26.

  The plate-like portion 28 is formed longer than the flange-like portion 26, an annular boss portion (not shown) is provided on the upper end side of the plate-like portion 28, and the shaft portion 20 is formed in the hole (29) inside the boss portion. Is inserted. The shaft portion 20 is covered with the boss portion, and interference between the wire portion of the wire harness 13 and the shaft portion 20 is prevented.

  The plate-like portion 28 is disposed perpendicular to the intermediate portion in the height (standing) direction of one side wall 33 of the flange-like portion 26, and the bottom wall 34 of the flange-like portion 26 is positioned lower than the plate-like portion 28. Yes. As a result, similarly to the example of FIG. 4, the wire harness 13 is disposed close to the substrate portion 7 of the protector base 2, so that the protector 2 can be thinned, that is, the power supply device 1 can be made compact in the thickness direction. Become.

  As shown in FIGS. 1 and 5, the distal end portion of the link arm 4 is located so as to protrude rearward from the rear end 2 b of the protector base 2. In FIG. 5, the link arm 4 is shown straight. The link arm 4 or the harness holder 6 comes into contact with the wall 10 on the ceiling side of the protector base 2 to prevent further rotation of the link arm 4 in the clockwise direction.

  When the ceiling-side wall portion 10 is protruded higher than the partition wall 79, the upper end of the distal end portion 4a of the link arm 4 comes into contact with the lower surface of the wall portion 10, and the ceiling-side wall portion 10 and the partition wall 79 are at the same height. If this is the case, the plate-like portion 28 of the harness holder 6 contacts the wall portion 10 on the ceiling side.

  Further, the wire portion of the wire harness 13 led upward from the harness holder 6 abuts against the ceiling-side wall portion 10 (FIG. 1), so that further upward protrusion of the wire portion is prevented, and the power feeding device 1 Can be reduced.

  Fixing holes 80 are provided at the corners of the substrate portion 7 of the protector base 2, and the substrate portion 7 can be directly fixed to the slide door panel (not shown) with bolts, for example. When a protector cover (not shown) is not used, the link arm 4 and the harness holder 6 are covered and protected with a synthetic resin door trim (not shown), and the wire harness 13 is secured from the lower end (horizontal opening) of the door trim. Derived to the vehicle body side. Even if the protector cover is not used, the wire harness 13 is stably supported between the back surface of the link arm 4 and the surface of the protector base 2 without protruding in the protector base plate thickness direction, so that there is no problem in practical use.

  Alternatively, as shown in FIG. 6, a separate large protector base 2 ′ made of a synthetic resin can be overlapped on the surface side of the protector base 2 and the hole 80 can be joined by bolting or heat-sealing. It is. A separate protector base 2 ′ engages with the small protector base 2 below the partition wall 79. The upper part of the front end of the separate protector base 2 ′ is notched in a curved shape along the partition wall 79, and the substrate portion 7 a is exposed in the notch. Alternatively, a separate protector base 2 ′ not cut out can be joined to the back side of the small protector base 2. In either case, a power feeding device 1 ′ as shown in FIG. 6 can be formed.

Feed unit 1 'is perpendicular to the motor vehicle sliding door (slide structure) (vertical) synthetic resin protector base to be mounted on 2' of FIG. 6 and the base side shaft portion 3 to the protector base 2 ' One link arm 4 that is rotatably supported, a torsion spring (elastic member) 5 that urges the link arm 4 upward, and a harness holder that is rotatably connected to the tip of the link arm 4 6.

The protector base 2 ′ includes a vertically long rectangular substrate portion 7 ′ including a front upper substrate portion 7 a , a front vertical wall portion 8, an upper horizontal wall portion 10, and a lower elongated opening 11. And. It is also possible to eliminate the upper wall 10 and integrally form a peripheral wall composed of the vertical wall 9 at the rear end and the upper horizontal wall 10 '. The upper wall 10 is located on the same horizontal line as the wall 10 'in the example of FIG. It is also possible to integrally form one protector base (2 ′ ) including the structure of the small protector base 2 described above.

'Preferable that the protector cover (not shown) is mounted in this case, the protector base 2' protector base 2 protector composed of a protector cover. The protector base 2 ' is fixed to the slide door panel with bolts or the like (not shown). A harness guide 2a having a curved longitudinal section as shown in FIG. 8 described later is formed at the edge of the lower opening 11 ' of the protector cover close to the passenger compartment. When the protector cover is not used, it is preferable that a separate harness guide 2a is provided on the slide door side, or a door trim (not shown) made of, for example, a synthetic resin is used as the protector cover.

The link arm 4 and the harness holder 6 are housed and protected in the protector so as to be rotatable along the base plate portion 7 ′ of the protector base 2 ′ , and the wire harness 13 is connected to the vehicle body (from the elongated lower opening 11 ′ of the protector). Derived to the fixed structure) side. The harness holder 6 is positioned so as to be rotatable along the surface of the protector base 2 ′. Even if the link arm 4 is rotated counterclockwise in the example of FIG. 6, the harness holder 6 may protrude outward from the lower end 11 ′ of the protector base 2 ′. In this case, the corrugated tube portion 17 of the wire harness 13 bends toward the vehicle body side with the harness holder 6 as a fulcrum.

The shaft portion 3 is disposed on the upper substrate portion 7a of the protector base 2 ' . A cylindrical boss portion 24a of the link arm 4 is rotatably engaged with the outer peripheral surface of the shaft portion 3, and an intermediate winding portion 5c of the torsion spring 5 is extrapolated to the boss portion 24a in advance. The link arm 4 is pivotally locked to the shaft portion by a flange portion 46 (FIG. 1), a stop ring, or the like.

  The projecting piece 5a in the latter half of the torsion spring 5 projects rearwardly through the tip 79c of the partition wall 79 (the gap between the tip 79c of the partition wall 79 and the back surface of the link arm 4). It is also possible to shorten the projecting piece 5a in the latter half or to extend the partition 79 itself backward so that the torsion spring 5 is disposed inside the partition 79.

  Adjacent to the front side of the board portion 7a, the harness outlet 15 is provided upward, and the harness guide walls 8, 78 are erected in parallel from the plate wall 14 on both sides of the lower portion of the outlet 15. The vertical portion 13 a of the wire portion of the wire harness 13 that passes between 78 is fixed to the frame-shaped portion (harness fixing portion) 81 having the band insertion hole outside the outlet 15 by the tie band 16.

  The wire harness 13 is bent downward from the vertical portion 13a (the downward bent portion is indicated by reference numeral 13b), and then bent upward (the upward bent portion is indicated by reference numeral 13c), while the back side of the distal end side of the link arm 4 is It passes through the corrugated tube 17 made of synthetic resin on the harness holder 6 side. The corrugated tube 17 is an existing bellows-like harness protection tube having good flexibility, in which circumferential grooves and ridges (not shown) are alternately arranged in the tube longitudinal direction.

  7 to 8 show a simplified operation of the power feeding device 1 "similar to the power feeding devices 1 and 1 'described above. The power feeding device 1" shown in FIGS. This is the same as that proposed in Japanese Patent Application No. 2006-295324.

  In the example of FIG. 7, the link arm 4 is rotatably supported by the vertical protector base 2 ″ on the slide door side by the shaft portion 3. In FIG. 7, the right side is the slide door (slide structure). 76 shows the fully closed state, the center diagram shows the half-opened state of the slide door 76, and the left diagram shows the fully opened state of the slide door 76. The power feeding device 1 ″ moves forward and backward together with the slide door 76. The wire harness 13 is routed from the harness holder 6 on the distal end side of the link arm 4 to the harness fixing portion 77 on the vehicle body (fixed structure) side.

  As the slide door 76 is slid rearward and opened, the link arm 4 rotates counterclockwise against the biasing force of the spring 5 (FIG. 6), and the harness holder on the distal end side of the link arm 4 6 is rotated counterclockwise, and the wire harness 13 is always routed smoothly between the link arm tip and the harness fixing portion 77 on the vehicle body side at a shortest distance and with a large bending radius. The bending of the wire harness 13 is reduced by preventing the small-diameter bending, and the wire harness 13 can be bent smoothly and the sliding door 76 can be opened and closed. This effect is more remarkably exhibited when the wire harness 13 is offset and wired with respect to the shaft portion 20 of the harness holder 6 as in the above embodiment.

  In FIG. 8A, the wire harness 13 tries to hang down when the sliding door 76 is half open, but the link arm 4 is rotated upward (clockwise) as indicated by the arrow by the force of the spring 5 (FIG. 6). The state which absorbs the slack (extra length) of the wire harness 13 is shown. In FIG. 8A, reference numeral 2a denotes a lower end portion of the protector 2 (FIG. 6), and the lower end portion 2a has an elongated lower opening 11 that leads the wire harness 13 toward the harness fixing portion 77 on the vehicle body side. Have.

  As shown in FIG. 8B, the link arm 4 is arranged along (close to) the slide door panel 76a, so that the wire harness 13 extends from the harness holder 6 at the end of the link arm to the harness fixing portion 77 on the vehicle body side. It bends smoothly and smoothly with a radius (the bent portion is indicated by reference numeral 13e), and the power feeding device 1 "itself is thinned.

  In FIG. 8B, the wire harness 13 is led out from the harness holder 6 to the vehicle body side at a substantially central position in the thickness direction of the power feeding device 1 ″. This is conspicuous when the hook-shaped portion 26 is arranged closer to the door inner panel 76a than the link arm 4.

  In the above embodiment, the separate harness holder 6 is provided on the link arm 4 so as to be rotatable. However, the harness holder 6 may be provided integrally (non-rotatably) on the link arm 4. In the above embodiment, the link arm 4 is urged in the surplus length absorption direction by an elastic member such as the torsion spring 5. However, the rigidity (repulsive force) of the corrugated tube 17 of the wire harness 13 is omitted by omitting the elastic member. ), The link arm 4 can be rotated in the extra length absorption direction.

  Moreover, in the said embodiment, the partition 79 which prevents interference with the wire harness 13 and axial part 3 (24a) etc. is formed in curved shape, and the wire harness 13 is curved with a big radius along the partition 79. Although it is made to be bent, the shape of the partition wall 79 can be formed in an inclined shape, a trapezoidal shape, a rectangular shape, or the like.

  Moreover, in the said embodiment, the cylindrical boss | hub part 24a was integrally provided in the link arm 4, and the boss | hub part 24a was engaged with the outer side of the axial part 3 so that rotation was possible, but a solid axial part ( 3) is provided with a seating surface (not shown) at the tip, and the back surface of the link arm 4 is slidably (rotatably) arranged on the seating surface, and the tip of the small-diameter shaft (not shown) at the center of the seating surface. It is also possible to prevent the link arm 4 from coming off with a portion (46), a stop ring or the like.

  Further, in each of the above embodiments, the corrugated tube 17 is used as the harness protective tube, but a resin tube having no irregularities (bellows) other than the corrugated tube, a flexible net-like tube (not shown), or a protective tube is used. It is also possible to use a plurality of electric wires bundled by tape winding or the like without using a wire. In these cases, the wire harness is held and fixed to the harness holder 6 on the distal end side of the link arm by a band or the like, or the wire harness is clamped and fixed by the holder base 6a and the holder cover 6b.

  Further, in the above embodiment, the power feeding devices 1 and 1 ′ are arranged vertically (vertically) on the slide door (slide structure) 76, but as shown in FIG. 6 as a plan view, for example, When there is an allowance in the thickness, the power feeding devices 1 and 1 ′ can be arranged horizontally (horizontal) on the slide door 76.

  Further, instead of the slide door 76, the power feeding devices 1 and 1 'may be disposed horizontally (horizontal) on the vehicle body (fixed structure), and the harness fixing portion 77 may be disposed on the slide door 76 side instead of the vehicle body. Is possible.

  Moreover, although the example applied to the slide door 76 of a motor vehicle was demonstrated in the said embodiment, not only the slide door 76 of a motor vehicle but slide structures, such as a slide door of trains, a manufacturing apparatus, a detection apparatus, etc. It is also possible to apply the power feeding devices 1 and 1 'to the above. The vehicle body and the like are collectively referred to as a fixed structure.

  In addition to the protector base structure for power supply, the above-described configuration of the present invention is also effective as a power supply device for the slide structure itself, a power supply structure, a harness wiring structure for the slide structure, and the like.

It is a perspective view showing one embodiment of a protector base structure for electric power feeding concerning the present invention. It is a perspective view which similarly shows a protector base. It is a front view which similarly shows a protector base. It is a perspective view which shows one Embodiment of a link arm assembly. It is a front view which simplifies and shows one Embodiment of an electric power feeder. It is a front view which shows other embodiment of an electric power feeder. It is a front view (description figure) which simplifies and shows the effect | action of the other form of an electric power feeder. (A) is the front view which simplifies and shows the other form of an electric power feeder, (b) is a side view similarly. It is a perspective view which shows the 1st form of the conventional electric power feeder. It is a perspective view which shows the 2nd form of the conventional electric power feeder. It is a perspective view at the time of full closure of the slide structure which shows the 3rd form of the conventional electric supply device. It is a perspective view just before full opening of the slide structure similarly showing a 3rd form. It is a side view which similarly shows the hanging state of a wire harness.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1 'Feeding device 2 Protector base 2' Separate protector base 3 Shaft part 4 Link arm 5 Torsion coil spring (elastic member)
6 Harness holder 10 Wall portion for restricting rotation 13 Wire harness 22 Support piece (support portion)
23 Support protrusion (support part)
79 Bulkhead 79c Projection tip 78 Harness leading wall

Claims (7)

A shaft portion is provided on the protector base, a link arm is rotatably supported on the shaft portion, a harness holder is provided on the link arm, a wire harness is held on the harness holder, and the wire harness is held near the shaft portion. The protector base is provided with a curved partition wall that prevents interference between the wire harness and the shaft portion, and protrudes in the plate thickness direction of the protector base , and is close to the shaft portion of the link arm that faces the protector base. wherein the portion of positioned rotatably in proximity along the protruding end of the partition wall, the wire harness is led out through the outer partition wall along the protector base from the harness holder A protector base structure for power supply. 2. The protector base structure for power feeding according to claim 1, wherein a part or all of an elastic member that urges the link arm in a harness surplus length absorption direction is disposed inside the partition wall.   The protector base structure for power feeding according to claim 1 or 2, wherein a wall portion for restricting rotation of the link arm is provided on the protector base following the partition wall.   The power supply protector base structure according to any one of claims 1 to 3, wherein the partition wall is provided with a harness lead-out wall on the wire harness fixing side.   The protector base structure for power feeding according to any one of claims 1 to 4, wherein the wire harness is routed from the harness holder between the protector base and the link arm.   6. A part for supporting one of the elastic members is provided on the protector base inside the partition wall, and a part for supporting the other elastic member is provided on the link arm. The protector base structure for electric power feeding in any one.   The power protector base according to any one of claims 1 to 6, wherein the protector base is joined to a large separate protector base, and the harness holder is positioned along the separate protector base. Construction.

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