JP2007283949A - Harness wiring structure for link type movable body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of control points of extra length of a wire harness in a movable body of an automobile door etc., and to enhance reliability of continuous electric power supply. <P>SOLUTION: The movable body 1 is rotatably connected to a fixation body 4 by a link arm 2, and the wire harness 14 is wired from the fixation body 4 to the movable body 1 along the link arm 2. A movable body side portion 14a<SB>2</SB>of the wire harness 14 is wired in one end side of the link arm 2 so as to be bendable, and the wire harness 14 is wired from the other end side of the link arm 2 to the fixation body side so as to be bendable. Rigidity is applied to the movable body side portion 14a<SB>2</SB>of the wire harness 14 so as to eliminate looseness of the movable body side portion 14a<SB>2</SB>of the wire harness 14. By fixing the movable body side portion 14a<SB>2</SB>of the wire harness 14 to a movable hinge part 18 in the movable body side and applying tape winding 36 to the movable body side portion 14a<SB>2</SB>of the wire harness 14, rigidity is applied to the movable body side portion 14a<SB>2</SB>of the wire harness 14. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a harness wiring structure of a link type movable body in which, for example, a door of an automobile is connected as a movable body by a link so as to be opened and closed, and a power supply wire harness is routed along the link.

  FIG. 8 shows an embodiment of a conventional link movable body harness wiring structure (see Patent Document 1).

  This link type movable body is a link type door 62, and the door 62 is swingably supported by the vehicle body 70 by a single substantially L-shaped support arm 71. The support arm 71 has high rigidity to support the dead weight of the door 62.

  In addition to the support arm 71, a pair of front and rear link arms 65, 66 are provided in parallel. The base ends of the link arms 65, 66 are pivotally supported by the vehicle body 70, and the distal ends of the link arms 65, 66 are provided. Is rotatably supported by a slider 64, and the slider 64 is slidably engaged with a horizontal guide rail 63 on the door side.

  As a harness support structure, a wire harness 68 is routed from the vehicle body side along the outer surface of the front link arm 66, fixed to the link arm 66 by a holder 72, and a caterpillar following the slider 64 in the guide rail on the door side. It is introduced into the door while being bent in a substantially U-shape or J-shape along the outer casing member 69, and is connected to auxiliary equipment and electrical equipment in the door. The right side in FIG. 8 is the vehicle front side.

  Examples of the auxiliary machine include a power window motor, a door lock unit, a speaker, a door opening / closing drive device, and the like. Link arms 65, 66, a guide rail 63, a slider 64, and an exterior member 69 are employed as a mechanism for absorbing the opening / closing stroke of the door 62 in order to constantly supply power to these auxiliary machines. The exterior member 69 is received by a storage case 67 below the guide rail 63.

  When the door 62 is fully closed, the support arm 71 and the link arms 65 and 66 extend forward, the slider 64 moves to the front end side of the guide rail 63, and one of the wire harnesses 68 is accommodated by the bending operation of the exterior member 69. 67. The wire harness 68 rotates together with the link arm 66.

When the door 62 is fully opened, the link arms 65 and 66 maintain the door half-open state of FIG. 8, the support arm 71 extends rearward, the slider 64 moves to the rear end side of the guide rail 63, and the wire harness 68 is externally mounted. It is pulled out backward together with the member 69.
Japanese Patent Application Laid-Open No. 10-175483 (FIGS. 5 and 9)

  However, in the above-described conventional link movable body harness routing structure, the guide rail 63, the slider 64, the caterpillar type exterior member 69, and the like are required to absorb the extra length of the wire harness 68. There was a problem that the structure was complicated and the cost increased. Further, when the door 62 is opened and closed, the wire harness 68 is loosened or pulled on the base end side (vehicle body 70 side) of the link arm 66. Therefore, in addition to the extra length absorption on the door side, the vehicle body Even on the side, care must be taken so that the wire harness 68 does not bite into the link arm 66 and the like, and there is a management point for excess length absorption on both the door side and the vehicle body side, so power supply is always ensured. There was a problem that the design and management for doing it was difficult.

  Even when doors other than automobile doors or other movable bodies are used as the movable body, there is a concern that the same problem as described above may occur when the harness wiring structure of the link movable body is applied. .

  In view of the above-described points, the present invention is a link-type movable that can reduce the management point of the extra length of the wire harness and improve the reliability of constant power supply while simplifying and reducing the structure for power supply. An object is to provide a body harness routing structure.

  In order to achieve the above object, a harness-type wiring structure for a link-type movable body according to claim 1 of the present invention is such that the movable body is rotatably connected to a fixed body by a link arm, and a wire is provided along the link arm. The harness is routed from the fixed body to the movable body, and the movable body side portion of the wire harness is flexibly wired at one end side of the link arm, and the other end side of the link arm is moved from the other end side to the fixed body side. The wire harness is flexibly routed, and rigidity is imparted to the movable body side portion of the wire harness, thereby eliminating looseness of the movable body side portion of the wire harness.

  With the above configuration, the rigidity of the movable body side portion of the wire harness on the one end side of the link arm is high, so that the movable body side portion of the wire harness is not loosened, that is, the extra length is generated when the movable body is rotated (opening and closing). The surplus length generation site of the wire harness is limited to the link arm portion and the fixed body side portion, the management point of the surplus length is reduced, and pinching of the wire harness when the movable body is closed is prevented. As a means for imparting rigidity to the movable body part of the wire harness, for example, the movable body part of the wire harness is fixed to the movable hinge part on the movable body side, or the tape is wound around the movable body part of the wire harness, or the wire harness For example, a reinforcing member may be fixed to the movable body side portion. The wire harness should not be firmly fixed along the link arm (it should be loosely fixed) but be inserted into the fixed body side. Thereby, the extra length of the wire harness is pushed out from the link arm to the fixed body side when the movable body rotates. It is also effective to arrange a harness protector along the link arm on the movable body side.

  The harness movable structure of the link type movable body according to claim 2 is the link structure of the link type movable body according to claim 1, wherein the movable body side portion of the wire harness is fixed to the movable hinge portion on the movable body side. Thus, rigidity is imparted to the movable body side portion of the wire harness.

  With the above configuration, the movable body side portion of the wire harness is fixed to the movable hinge portion of the harness protector on the movable body side, and the rigidity is increased, so that the generation of the extra length is prevented on the movable body side, and the extra length of the wire harness is removed from the link arm. Pushed to the fixed body side. The movable body side portion of the wire harness swings in the rotational direction of the movable body together with the movable hinge portion. The movable hinge portion is preferably formed integrally with the harness protector on the movable body side. It is also possible to provide the movable hinge part on the panel of the movable body.

  The harness movable structure of the link type movable body according to claim 3 is the harness wiring structure of the link type movable body according to claim 1, wherein the wire harness is provided by tape winding the movable body side portion of the wire harness. The movable body side portion is provided with rigidity.

  With the above-described configuration, the movable body side portion of the wire harness is stiffened by tape winding, so that generation of a surplus length is prevented on the movable body side, and the surplus length of the wire harness is reliably pushed out from the link arm to the fixed body side. The tape is preferably thick.

  The harness wiring structure of the link type movable body according to claim 4 is the harness wiring structure of the link type movable body according to any one of claims 1 to 3, wherein the harness protector disposed in the link arm includes the harness routing structure. The wiring harness is routed.

  With the above configuration, the extra length of the wire harness is pushed out along the harness protector toward the fixed body when the movable body rotates. Alternatively, the extra length of the wire harness is generated in the harness protector, and the harness protector is safely protected from interference with the outside. The harness protector may be of a slide type (for example, a wire harness is fixed to the inner protector and the inner protector is slidably engaged with the outer protector on the fixed side).

  The harness movable structure of the link type movable body according to claim 5 is the harness movable structure of the link type movable body according to any one of claims 1 to 4, wherein the movable body is a door, and the fixed body is It is a vehicle body.

  According to the above configuration, the effects of the inventions according to claims 1 to 4 are achieved with the opening and closing of the door of the automobile, the wire harness is damaged due to the bending of the wire harness on the door side, and the wire harness is caught when the door is closed. Is prevented, and the reliability of constant power supply to the automobile door is increased.

  According to the first aspect of the present invention, since the slack of the movable body side portion of the wire harness is prevented on one end side of the link arm, the occurrence of the surplus length of the wire harness is prevented on the movable body side, and the surplus length is ensured. Pushed from the link arm to the fixed body side, the excess length management point is reduced, and the wire harness is prevented from being caught when the movable body is closed, and the reliability of constant power supply from the fixed body to the movable body is improved. . In addition, since a surplus length absorbing mechanism on the movable body side is unnecessary, the structure for supplying power is simplified and the cost is reduced.

  According to invention of Claim 2, the effect similar to invention of Claim 1 is exhibited because the movable body side part of a wire harness raises rigidity by a movable hinge part.

  According to invention of Claim 3, the effect similar to invention of Claim 1 is exhibited because the movable body side part of a wire harness raises rigidity by tape winding.

  According to the fourth aspect of the present invention, the surplus length of the wire harness is smoothly pushed out to the fixed body side along the harness protector on the link arm side, and the surplus length is reliably absorbed on the fixed body side.

  According to the invention of claim 5, since no extra length is generated in the door-side wire harness, damage to the wire harness caused by bending of the door-side wire harness, pinching of the wire harness when the door is closed, and the like are prevented. This increases the reliability of constant power supply to automobile doors.

  1 to 3 show an embodiment of a harness wiring structure for a link movable body according to the present invention.

  This link type movable body is a link type door 1 of an automobile, and the link type door 1 is supported by a vehicle body 4 which is a fixed body by a pair of front and rear link arms 2 and 3 so as to be swingable (turnable). The link arms 2 and 3 are made of a metal material such as iron or aluminum alloy with high strength and rigidity. It is also possible to use one link arm instead of two, or to support the door 1 with a guide rail or the like (not shown) separately from the link arm.

  The distal ends of the link arms 2 and 3 are rotatably supported by a shaft bracket 7 on a door (movable body) side link bracket 5, and the base ends of the link arms 2 and 3 are pivoted on a vehicle body side link bracket 6. The part 7 is rotatably supported. The link bracket 6 on the vehicle body (fixed body) side is disposed inside the rocker panel 8 having a U-shaped cross section.

  In FIG. 1, the left side is the vehicle front side, and the right side is the vehicle rear side. In FIG. 1, the solid line indicates the fully open state of the door 1, the chain line indicates the fully closed state of the door 1, FIG. 2 indicates the fully open state of the door 1, and FIG. 3 indicates the fully closed state of the door 1.

  When the door 1 is fully opened, the link arms 2 and 3 project outward from the vehicle body 4 and extend obliquely rearward, and an opening 9 for getting on and off is formed on the front side of the door 1. 10 is formed, and when the door 1 is fully closed, the link arms 2 and 3 fall to the front side, and the door 1 and the vehicle body 4 are in close contact with each other. When the door 1 is opened and closed, the link arms 2 and 3 swing, and the link brackets 5 and 6 are always positioned in parallel.

  A rectangular tubular harness protector 11 made of synthetic resin is horizontally disposed on the outer side surface (front side surface) of the front link arm 2. A wire harness (a plurality of round insulated wires) 14 is inserted into the harness protector, and one portion 14a of the wire harness 14 is led out from the distal end side of the harness protector 11 to the door 1 side, and the proximal end side of the harness protector 11 The other portion 14b of the wire harness 14 is led out to the vehicle body 4 side while being covered with a protective tube 24 such as a corrugated tube made of synthetic resin.

  The harness protector 11 is preferably composed of an outer protector fixed to the link arm 2 and an inner protector that fixes the wire harness 14 and slides inside the outer protector. Alternatively, it is also effective to insert the wire harness 14 into the harness protector 11 without fixing it.

One portion 14 a of the wire harness 14 is raised along the vertical portion 15 of the harness protector 47 on the door side (the raised portion is indicated by 14 a ₁ ), and is routed horizontally along the horizontally long horizontal portion 16. However, it is routed from the horizontal portion 16 to the inside of the door inner panel 1a via the second vertical portion 17. The vertical portions 15 and 17 and the horizontal portion 16 of the harness protector 47 on the door side may be integrally formed of synthetic resin or may be formed separately.

  4 to 5 show one embodiment of the harness protector 47 on the door side.

  The harness protector 47 is formed by bending the base 19 and the cover 20 fixed to each other by the locking means 21 into a substantially crank shape, and projects in the horizontal direction on one side of the opening 15a of the lower vertical portion 15. The movable hinge portion (swinging portion) 18 is integrally provided. The harness protector 47 is fixed to the door inner panel 1a by a back side locking clip 58 (FIG. 2).

  The movable hinge portion 18 includes a flexible plate portion 31 and an arc-shaped harness fixing portion 32 integrally formed on the distal end side of the flexible plate portion 31, and the thickness direction of the flexible plate portion 31 is in the horizontal direction. The plate width direction matches the vertical direction.

  One portion 14a (FIG. 1) of the wire harness 14 is horizontally fixed to the movable hinge portion 18 by a band or tape winding, and the wire harness 14 can be bent integrally with the movable hinge portion 18 as the door 1 is opened and closed. Become.

In this way, the bent portion (the movable body side portion to be bent) 14a ₂ of the wire harness 14 is fixed to the movable hinge portion 18, whereby the bent portion 14a ₂ is given rigidity, and the wire harness 14 on the door side is provided. Occurrence of slack (excess length) is reliably prevented.

  Thereby, the surplus length is generated in the wire harness 14 only on the inside of the harness protector 11 on the link arm side or on the vehicle body 4 side. If the harness protector 11 is composed of a sliding inner protector and a fixed outer protector, the wire harness 14 is pushed out to the vehicle body side integrally with the inner protector when the door 1 is opened and closed, and the wire harness only on the vehicle body side. 14 has an extra length. The extra length on the vehicle body side is absorbed as a bent portion 26 (FIGS. 1 and 3) when the door is closed.

  4 and 5, reference numeral 2 is a link arm, 5 is a link bracket, 33 is a weather strip, 34 is an elastic seal member disposed between the weather strip 33 and the upper vertical portion 17 of the harness protector 47, Reference numeral 35 denotes a groove of the door inner panel 1a in which the vertical portion 17 is disposed. 5 indicates the direction of rotation of the link arm 2 and the movable hinge 18 when the door is closed, and arrow B indicates the direction of rotation of the link arm 2 and the movable hinge 18 when the door is opened.

As shown in FIGS. 2 to 3, as the door 1 is opened and closed, the wire harness 14 swings integrally with the movable hinge portion 18 of the door-side harness protector 47 and runs along the lower vertical portion 15. The rising portion 14a ₁ performs a twisting operation in the circumferential direction, and absorbs the bending of the harness accompanying the rotation of the link arm 2. In the harness protector 47 on the door side, the wire harness 14 is firmly fixed without slack, and no extra length is generated when the door is opened and closed.

  As shown in FIG. 2, the other portion 14 b of the wire harness 14 is routed horizontally from the harness protector 11 on the link arm side along the wall portion 13 of the rocker panel 8 of the vehicle body 4 while bending with a surplus length. It is routed in the vehicle body from the hole 22 of the rocker panel 8 and is held by the elastic waterproof grommet 23 in the hole 22, and the flexible protective tube 24 made of synthetic resin between the harness protector 11 and the waterproof grommet 23. Protected by etc.

  When the harness protector 11 is slid, the harness protector 11 extends when the door 1 is fully opened and is compressed when the door 1 is fully closed. As the harness protector 11 extends, the wire harness 14 is pushed out from the door side to the vehicle body side, and the harness surplus length is concentrated on the vehicle body side.

As shown in FIGS. 3 and 6, when the door is fully closed, the horizontal portion of the wire harness 14 is bent in a curved shape outside the shaft portion 7 of the link arm 2 between the door 1 side and the link arm 2 side. (Denoted by reference numeral 14a ₂ ). As shown in FIG. 2, when the door is fully opened, the bent portion 14a ₂ extends substantially linearly and enters the harness protector 11 on the link arm side.

  In FIG. 6, reference numeral 34 denotes a band integrally formed with the arc-shaped harness fixing portion 32, and reference numeral 35 denotes a vinyl tape for focusing the wire harness. The tape 35 is for facilitating fixing with the band 34 and is not essential.

  When the harness protector 11 is not slidable, the wire harness 14 is bent into a wave shape or the like in the harness protector 11 to generate a surplus length, while the wire harness 14 is bent and absorbed by the vehicle body side. Even if the wire harness 14 is loosened in the harness protector 11, there is no problem because the wire harness 14 is safely protected from interference with the outside in the harness protector 11. In any case, management of the harness surplus length on the door side is not necessary.

  Since the wire harness 14 is supported by the movable hinge portion 18 of the harness protector 47 on the door side to increase rigidity, and the excess length of the wire harness 14 is generated and absorbed on the vehicle body side, the management point of the excess length is the vehicle. Designed and managed to ensure constant power supply is reduced to one location on the body side, and the reliability of constant power supply is improved.

FIG. 7 shows another embodiment of the harness wiring structure of the link type movable body according to the present invention, in which the movable hinge portion 18 of the harness protector 47 is eliminated, and instead the bent portion of the wire harness 14 (when the door is opened and closed). the bent portions) 14a ₂ wrapped with tape 36 illustrates an example of imparting rigidity to the bent portion 14a _2.

  The tape 36 is preferably a thick adhesive tape containing a cloth material or the like rather than a thin vinyl tape. If it is a thin tape, it can be used by making multiple windings such as double winding. One end of the tape 36 may be wound to the vicinity of the opening of the vertical portion 15 of the door-side harness protector 47 ', and the other end of the tape 36 may be wound to the door-side end opening of the harness protector 11 on the link arm side. preferable.

  The configuration of FIG. 7 is the same as the configurations of FIGS. 1 to 6 except for the tapes 35 and 36 and the movable hinge portion 18, and the same components are denoted by the same reference numerals and description thereof is omitted.

  As a means for increasing the rigidity of the bent portion of the wire harness, it is also possible to arrange a thin flexible resin plate inside the tape winding. In addition to tape winding, as a means for increasing the rigidity of the bent portion of the wire harness, it is also effective to wind a synthetic resin sheet or to attach a protective tube made of synthetic resin to the bent portion.

  Since the effect of the harness wiring structure of the link type movable body using the means for increasing the rigidity of the bent portion of the wire harness is the same as in the embodiment of FIGS.

  In the above embodiment, instead of the slide inner protector and the fixed outer protector, for example, a rail (not shown) is provided along the link arm 2 as the harness protector 11 on the link arm side. A tubular harness protector can be slidably engaged, and the wire harness 14 can be inserted and fixed to the harness protector.

  In the above embodiment, the protective tube 24 is attached to the wire harness 14 on the vehicle body side. However, an elastic waterproof grommet, a swinging protector (not shown), etc. can be attached in addition to the protective tube. It is.

Moreover, the shape of the door-side harness protector 47 can be appropriately set as long as the wire harness 14 is firmly fixed without generating a surplus length. The movable hinge portion 18 is not limited to a plate shape but may be a rod shape or the like. The wire harness portion 14a led out from the slide protector 11 is supported or fixed horizontally or substantially horizontally, and the wire harness 14 is started up when the door is opened or closed. if the parts 14a ₁ intended for pivoting back and forth without slack of harness portion 14a as a fulcrum, it may not be of flexible. It is also possible to provide the movable hinge portion 18 on the inner panel 1 a of the door 1 separately from the protector 47.

  In addition to the link doors of automobiles as link-type movable bodies, the link-type movable body harness is arranged on link-type doors such as trains and locomotives, link-type doors and link-type covers of processing machines and inspection devices, etc. It is also possible to apply a cable structure. In this case, a vehicle body such as a train or a locomotive, a machine body of a processing machine, an apparatus body of an inspection apparatus, or the like is referred to as a fixed body.

It is a perspective view which shows one Embodiment of the harness wiring structure of the link type movable body which concerns on this invention. It is a principal part top view which shows the harness wiring form at the time of a fully open similarly movable body. It is a principal part top view which similarly shows the harness wiring form at the time of a fully closed movable body. It is a perspective view which shows one form of the harness protector by the side of a movable body (door). It is the perspective view which similarly looked at the harness protector by the side of a movable body from which the angle was changed. It is a perspective view which shows the bending part of the wire harness by the side of a movable body. It is a principal part perspective view which shows other embodiment of the harness wiring structure of a link type movable body. It is a perspective view which shows one form of the harness wiring structure of the conventional link type movable body.

Explanation of symbols

1 Door (movable body)
2, 3 Link arm 4 Vehicle body (fixed body)
14 Wire harness 14a ₂ Bent part (movable body side part)
18 Movable hinge 36 Tape

Claims (5)

  A movable body is rotatably connected to a fixed body by a link arm, a wire harness is routed from the fixed body to the movable body along the link arm, and the movable body side of the wire harness is connected to one end of the link arm. The wire harness is routed in a bendable manner, and the wire harness is flexibly routed from the other end side of the link arm to the fixed body side, and rigidity is imparted to the movable body side portion of the wire harness. A harness wiring structure for a link-type movable body, wherein loosening of the movable body side portion of the harness is eliminated.   The harness wiring of a link type movable body according to claim 1, wherein rigidity is imparted to the movable body side portion of the wire harness by fixing the movable body side portion of the wire harness to the movable hinge portion on the movable body side. Construction.   2. The link movable body harness wiring structure according to claim 1, wherein rigidity is imparted to the movable body side portion of the wire harness by tape winding the movable body side portion of the wire harness.   The harness wiring structure of the link type movable body according to any one of claims 1 to 3, wherein the wire harness is routed in a harness protector disposed on the link arm.   The harness movable structure of the link type movable body according to any one of claims 1 to 4, wherein the movable body is a door and the fixed body is a vehicle body.

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