JP2008094133A - Link-type movable harness wiring structure - Google Patents

Abstract

[PROBLEMS] To prevent damage to a hinge plate for supporting a harness accompanying opening / closing of a door and damage due to interference of a wire harness, thereby improving the reliability of constant power supply.
A movable body 1 is connected to a stationary body 4 by a horizontal link arm 2 so as to be opened and closed, a harness protector 11 is provided along the link arm, and one end of a rotating grommet 15 is connected to the harness protector. The other end of the wire harness 14 was rotatably engaged with the vertical portion 34 of the harness protector 16 on the movable body side, and the wire harness 14 was inserted inside the harness protectors and the rotating grommet while being fixed on the movable body side. On the movable body side, a push-back wall 41 that suppresses deformation of the rotating grommet 15 when the movable body is opened and closed is provided. The gap S ₁ between the push-back wall 41 and the other end of the rotating grommet 15 was set to be narrow so that the other end from the vertical portion 34 does not come off.
[Selection] Figure 1

Description

  The present invention relates to a harness wiring structure of a link type movable body that supports, for example, a door of an automobile as a movable body so as to be freely opened and closed on a vehicle body that is a fixed body with a link, and a wire harness for power supply is always routed along the link. It is about.

  FIG. 7 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. 7 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. 7, 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 Also on the side, care must be taken so that the wire harness 68 does not bite into the link arm 66 or the like (because there is a management point on both the door side and the vehicle body side), so that power can always be supplied reliably. There was a problem that the design and management etc. were difficult.

  Therefore, the applicant first provided a harness protector along the link arm, and routed the wire harness in the harness protector so as to be movable in the longitudinal direction. A harness routing structure (not shown) has been proposed in which the length is pushed out from the door side along the harness protector to the vehicle body side and the excess length is managed only on the vehicle body side (Japanese Patent Application No. 2005-374691).

  However, in this structure, the wire harness is fixed to the flexible hinge plate of the door side harness protector on the door side and swings back and forth. There was a concern that it may cause deterioration of the material due to the deterioration of the bending durability due to low temperature curing. In addition, because the wire harness is exposed between the door side protector and the link arm side protector, there is a concern that it may be damaged by interference during packaging transportation, vehicle assembly, or when the door is fully open, There was a problem that it looked bad.

  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 not only reduces the management point of the extra length of the wire harness, but also eliminates the concern about the damage to the hinge plate for supporting the harness accompanying the opening and closing of the door. It is an object of the present invention to provide a link movable body harness arrangement structure that can prevent the interference with the outside and further improve the reliability of constant power supply.

  In order to achieve the above object, according to the link movable body harness wiring structure according to claim 1 of the present invention, the movable body is connected to the fixed body by a horizontal link arm so as to be freely opened and closed, and along the link arm. A harness protector is provided, one end of the rotating grommet is connected to the harness protector, the other end of the rotating grommet is rotatably engaged with a vertical portion of the harness protector on the movable body side, and the wire harness 14 is While being fixed on the movable body side, the harness protector and the rotating grommet are inserted inside.

  With the above configuration, the link arm rotates (swings) in the horizontal direction integrally with the harness protector and rotating grommet on the link arm side as the movable body opens and closes, and at this time, the other end of the rotating grommet on the link arm side Rotates in the circumferential direction around the vertical portion of the harness protector on the movable body side. The wire harness is fixed on the harness protector side on the movable body side, and as the link arm turns, the excess length (slack) of the wire harness is pushed out toward the fixed body inside the harness protector on the link arm side, and the wire is fixed on the fixed body side. The extra length is absorbed, for example, by bending the harness. The wire harness is twisted in the circumferential direction within the vertical portion of the harness protector. As the harness protector on the link arm side, a slide type or a fixed type can be used. In the case of the fixed type, the wire harness is routed with a surplus length in the harness protector. The wire harness is inserted from the harness protector on the link arm side through the rotating grommet and into the harness protector on the fixed body side, and is safely protected without interference with the outside. The harness protector is preferably hard and the rotating grommet is preferably elastic.

  The harness movable structure of the link type movable body according to claim 2 is the harness wiring structure of the link type movable body according to claim 1, wherein the vertical portion of the harness is arranged in the fitting portion on the other end side of the rotary grommet. The concave grooves are engaged with each other.

  As the link arm rotates, the vertical flange of the harness protector on the movable body side smoothly rotates (slids) in the circumferential direction (horizontal direction) along the concave groove in the fitting portion of the rotating grommet. The collar portion engages with the concave groove to prevent the rotation grommet from slipping out (detaching).

  The harness movable structure of the link type movable body according to claim 3 is the link structure of the link type movable body according to claim 1 or 2, wherein the rotary grommet is deformed when the movable body is opened and closed on the movable body side. It is characterized in that a pushback wall for restraining is provided.

  With the above configuration, when the rotation grommet is pushed and deformed in the horizontal direction by the harness protector on the link arm side when the link arm is rotated, the rotation grommet contacts the pushback wall on the movable body side and further deformation is prevented. The

  The harness movable structure of the link movable body according to claim 4 is the harness movable structure of the link movable body according to claim 3, wherein the push-back wall is curved at the same opening angle as the rotation angle of the link arm. It is characterized by being formed.

  With the above configuration, the rotating grommet can contact the curved surface inside the push-back wall on the movable body side in the entire range of rotation of the link arm. The radius of curvature of the curved surface of the pushback wall is preferably larger than the radius of the cylindrical vertical portion of the rotating grommet and is concentrically arranged.

  The harness movable structure of the link type movable body according to claim 5 is the harness wiring structure of the link type movable body according to claim 3 or 4, wherein the clearance between the pushback wall and the other end of the rotary grommet. Is narrowly set so as not to cause the other end portion to be detached from the vertical portion.

  With the above configuration, even when a strong tensile force acts on the rotating grommet and the other end of the rotating grommet is about to come off the harness protector on the movable body side, the other end is caught in a narrow gap between the pushback wall. This prevents the rotating grommet from coming off.

  According to the first aspect of the invention, the wire harness is pushed out along the link arm side harness protector along the link arm side harness protector as the movable body is opened and closed, and the extra length is absorbed only on the fixed body side. The length of the management point is reduced, and the reliability of constant power supply is improved, as well as the wire harness is not supported by the flexible hinge plate on the movable body side. The fear of lowering the bending durability due to curing has been eliminated, and the wire harness is protected from the link arm to the movable body by both harness protectors and the rotating grommet without interference with the outside. Reliability is improved.

  According to the second aspect of the present invention, the flange engages with the concave groove to prevent the rotating grommet from coming off, and the rotating grommet smoothly rotates with respect to the harness protector on the movable body side.

  According to the third aspect of the present invention, the rotating grommet is prevented from being deformed in the horizontal direction by the push-back wall on the rotating body side, and harmful deformation of the rotating grommet and the wire harness in the rotating grommet is prevented. Sex is secured.

  According to the fourth aspect of the present invention, the deformation of the rotating grommet is reliably prevented by the push-back wall in the entire range of the rotation of the link arm, and harmful deformation of the rotating grommet and the wire harness in the rotating grommet are surely prevented. Is done.

  According to the fifth aspect of the present invention, even when a strong tensile force acts on the rotating grommet, the rotating grommet is prevented from coming off by the narrow gap between the pushing back wall and the wire harness is always waterproof and dust-proof. This increases the reliability of constant power supply.

  FIGS. 1-6 shows one Embodiment of the harness wiring structure of the link type movable body which concerns on this invention.

  As shown in FIG. 1, the link-type movable body is a link-type door 1 of an automobile, and the link-type door 1 is supported by a link arm 2 on a vehicle body 4 that is a fixed body so as to be able to swing (turn). The link arm 2 is formed of a metal material such as iron or aluminum alloy with high strength and rigidity.

  Another link arm (not shown) is provided facing the upper side of the link arm 2, another link arm (not shown) is provided in front of or behind the link arm 2, or what is the link arm 2? Alternatively, the door 1 can be supported by a guide rail (not shown).

  The distal end portion of the link arm 2 is rotatably supported by the shaft bracket 7 on the door (movable body) side link bracket 5, and the base end portion of the link arm 2 is rotated by the shaft portion 7 on the vehicle body side link bracket 6. It is supported freely. The link bracket 6 on the vehicle body (fixed body) side is disposed inside the rocker panel 8. When a pair of front and rear parallel link arms is used, the pair of link arms are connected by a pair of left and right long link brackets.

  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, and the chain line indicates the fully closed state of the door 1. When the door 1 is fully opened, the link arm 2 protrudes outward from the vehicle body 4 and extends obliquely rearward. An opening 9 for getting on and off is formed on the front side of the door 1, and a crossing space 10 is formed between the door 1 and the vehicle body 4. When the door 1 is fully closed, the link arm 2 falls to the front side, and the door 1 and the vehicle body 4 come into close contact with each other. When the door 1 is opened and closed, the link arm 2 swings and the link brackets 5 and 6 are always positioned in parallel.

  A harness protector 11 made of synthetic resin is horizontally disposed on the outer surface (front side surface) of the link arm 2. The harness protector 11 includes a rectangular tubular outer protector 12 and an inner protector 13 that is slightly narrower than the outer protector 12, and the outer protector 12 is positioned closer to the door and fixed to the link arm 2 in an immobile manner. The inner protector 13 is positioned closer to the vehicle body and can slide within the outer protector 12.

  A wire harness (a plurality of round insulated wires) 14 is inserted into the slide protector, one portion 14a of the wire harness 14 is led out to the door 1 side from the tip of the outer protector 12, and the wire harness is drawn from the tip of the inner protector 13. 14 is led out to the vehicle body 4 side. The wire harness 14 is fixed to the inner protector 13 by tape winding or band winding, and is not fixed to the outer protector 12 at all.

As shown in FIGS. 1 and 2, one portion 14 a of the wire harness 14 is formed from an end portion of the horizontal harness protector 11 on the link arm side with a substantially L-shaped synthetic rubber (elastic) rotating grommet 15 and the door side. It is raised vertically along a synthetic resin substantially inverted L-shaped harness protector 16 (the raised portion of the wire harness 14 is indicated by 14a ₁ ), and further bent horizontally (laterally) to form the harness protector 16. is routed horizontally along the waterproof grommet 17 (shown horizontal section of the wire harness 14 by the reference numeral 14a _2), further vertical (portrait) to bent the door side of the synthetic rubber from the harness protector 16 (elastic) Then, it is routed along the door inner panel 1a.

Raised portion of the wire harness 14 at the time of opening and closing the door by (vertical portion) 14a ₁ is twisted in the circumferential direction, the excess length of the harness in the door side is absorbed. The unfolded length of the harness raising portion 14a ₁ becomes longer when twisted and becomes shorter when the twist is released.

  As shown in FIG. 2, the harness protector 11 on the link arm side is formed shorter than the link arm 11, and the inner protector 13 protrudes from the outer protector 12 toward the vehicle body when the door is fully opened. As shown in FIG. 3, the inner protector 13 protrudes from the outer protector 12 to the door side when the door is fully closed. The inner protector 13 of this example is formed longer than the outer protector 12 and is inserted through the entire length of the outer protector 12 so as to be slidable in the longitudinal direction.

  The inner protector 13 is formed shorter than the outer protector 12, protrudes only to the door side and is connected to the rotating grommet 15, and the vehicle body side end portion 12b (FIG. 2) of the outer protector 12 is connected to the inner protector end of FIG. It is also possible to extend to the part 13b.

  As shown in FIG. 2, the outer protector 12 is locked to the upper and lower walls of the U-shaped main body 21 with locking means (the locking claw 19 and the locking frame 20) with the front wall 18 serving as a lid wall. Has been. Further, as shown in FIG. 3, the inner protector 13 is also formed in a divided manner and locked to each other by locking means (locking claws 27 and locking frames 28) on the side walls.

  A guide recess 29 for sliding with respect to the inner protector 13 is formed on the inner surfaces of the upper and lower wall portions of the outer protector 12. The inner protector 13 is divided and the wire harness 14 is inserted and the rotating grommet 15 is attached, and the outer protector 12 is divided and the inner protector 13 is attached.

  A flange 30 for contacting the end surface 12 a of the outer protector 12 and a cylindrical wall 31 protruding from the flange 30 are provided at one end portion (door side end portion) of the inner protector 13. A cylindrical wall 31 is inserted and fitted into a cylindrical portion 32 on one horizontal end of the rotary grommet 15 having a circular cross section (cylindrical shape). A short cylindrical portion (vertical portion) 33 on the other end of the rotating grommet 15 facing upward is engaged with a downward vertical cylindrical wall (vertical portion) 34 of the harness protector 16 on the door side so as to be rotatable in the circumferential direction. ing.

  As shown in FIG. 4, a circular annular fitting portion 35 is integrally formed with the vertical cylindrical portion 33 of the rotary grommet 15, and the fitting portion 35 has a circumferential annular groove 36 inside. An annular flange 37 is integrally provided on the outer end of the downward-facing cylindrical wall 34 of the harness protector 16 on the door side, and the flange 37 engages in a recessed groove 36 of the fitting portion 35 so as to be slidable in the circumferential direction. Yes. The extension part 34a of the cylindrical wall 34 continues below the flange part 37, and the extension part 34a is in contact with the inner surface of the short cylindrical part 33, thereby making it difficult to disengage the flange part 37 and the fitting part 35 from each other. .

  The harness protector 16 is fixed to the door inner panel 1a side by a locking clip 38 (FIG. 3 shows a state before locking), and the fitting portion of the rotating grommet 15 is rotated with the rotation of the link arm 2 when the door is opened and closed. 35 rotates in the horizontal direction integrally with the harness protector 11 on the link arm side along the flange portion 37 of the harness protector 16 on the door side.

  The rotating grommet 15 includes a horizontal cylindrical portion 32 on one end side, a flexible hollow bellows portion 39 that follows, a bent portion (intersection portion) 40 that follows the bellows portion 39, and a short end on the other end side that follows the bent portion 40. The cylindrical portion 33 and the fitting portion 35 at the tip thereof are integrally formed. When the inner protector 13 of FIG. 3 slides to the door side, the bellows portion 39 is pressed and compressed in the axial direction to absorb the sliding amount of the inner protector 13 to some extent.

  As shown by the chain line in FIG. 5, the pressing force cannot be absorbed by the bellows portion 39, the rotating grommet 15 is pushed toward the door side, and the bent portion 40 and the upward cylindrical portion 33 are displaced (deformed) as indicated by the arrow A. Corresponding to this case, as shown in FIGS. 4 and 6, the door inner panel 1a is provided with a vertical push-back wall (abutment wall) 41 curved like a fan.

  The pushback wall 41 is formed in a fan shape with the same opening angle θ as the rotation angle of the link arm 2 in FIG. 6. The rotating grommet 15 can contact the pushback wall 41 in the entire range of rotation of the link arm 2. The radius of curvature of the curved surface 41 a inside the push-back wall 41 is larger than the radius of the cylindrical portion 33 of the rotary grommet 15, and the curved surface 41 a is disposed concentrically with the cylindrical portion 33. A flange portion 42 is integrally formed at the lower end of the push-back wall 41 so as to protrude.

The curved inner surface 41a in a plan view of the push-back wall 41 has an outer surface of a short vertical cylindrical portion 33 in a range from slightly above the fitting portion 35 of the rotating grommet 15 to slightly below the bent portion 40. It is located vertically in parallel. The inner surface 41a of the push-back wall 41 is located opposite to exist a gap S ₁ annular little fitting portion 35 of the upper end of the rotating grommet 15.

  As the door 1 shifts from fully open to fully closed, the inner protector 13 (FIG. 3) slides to the door side, and the rotating grommet 15 is pushed to the door side by the inner protector 13 as shown in FIG. However, when deformed like a chain line, the outer surface (circumferential surface) of the cylindrical portion 33 of the rotary grommet 15 comes into contact with the inner surface 41a of the push-back wall 41, and more than that. Deformation is prevented, and the extra length of the wire harness 14 is prevented from being generated on the door side when the door is closed, and the extra length generated on the door side when the next door is opened is reliably pushed together with the inner protector 13 to the vehicle body 4 side. Thus, when the door is fully opened, the wire harness 14 is bent on the vehicle body side and the surplus length is reliably absorbed.

The size of the gap S ₁ between the push-back wall 41 and the fitting portion 35 is the amount of protrusion S ₂ of the flange portion 37 of the harness protector 16 on the door side fitted to the fitting portion 35 or the fitting portion 35. It is set smaller than the thickness dimension T. As a result, even if the rotating grommet 15 is pulled strongly and the fitting portion 35 is likely to be detached from the flange portion 37, the outer surface 35a of the fitting portion 35 contacts the inner surface 41a of the pushback wall 41. Disengagement is prevented.

  The link arm 2 and the rotating grommet 15 indicated by solid lines in FIG. 6 are those when the door is fully closed, and the link arms 2 indicated by chain lines are those when the door is fully open. The pushback wall 41 is fixed to the door 1 and does not move.

The flange 42 at the lower end of the push-back wall 41 in FIG. 4 acts as a wall portion for preventing the rotating grommet 15 from coming off together with the narrow gap S ₁ between the fitting portion 35. In addition, the flange portion 42 is provided in a fan-like shape at the intermediate portion in the height direction of the pushback wall 41 so as to contact the outer surface of the upward cylindrical portion 33 of the rotary grommet 15 instead of the inner surface of the pushback wall 41a. Also good.

  In FIG. 4, the U-shaped member 5 is a door side link bracket. The pushback wall 41 is fixed to the link bracket 5. A vertical plate 44 is fixed to the horizontal bowl-shaped upper wall 43 of the push-back wall 41, and the door side harness protector 16 is fixed to the plate 44 with an integral locking clip 38. The locking clip 38 is an existing one composed of a column 38a, a pair of flexible inclined claw portions 38b, and a disc spring 38c.

  As shown in FIGS. 2 to 4, the door side harness protector 16 includes a horizontal rectangular cylindrical portion 45, a vertical cylindrical wall 34 protruding downward on the front end side of the rectangular cylindrical portion 45, and a rectangular cylindrical portion 45. And a cylindrical wall 46 projecting horizontally from the rear end. A locking clip 38 is integrally projected on the outer surface of the rectangular tubular portion 45. The locking clip 38 is inserted and locked in the hole 47 of the plate portion 44 on the inner panel side. The waterproof grommet 17 on the door side is fitted to the cylindrical wall 46 at the rear end.

  As shown in FIG. 2, the waterproof grommet 17 on the door side includes a bellows portion 48 bent in a substantially L shape, a fitting portion 49 in the middle thereof, and a harness fixing portion 49 protruding from the upper end of the bellows portion 48 toward the passenger compartment. have. The fitting portion 49 is fitted into a hole in the upper wall 51 of the skirt 50 on the lower end side of the door inner panel 1a, and the door side harness protector 16 is disposed inside the skirt 50 (recessed space). The configurations of the door side harness protector 16 and the waterproof grommet 17 are appropriately set as necessary.

  As shown in FIG. 1, on the vehicle body side, the other portion 14b of the wire harness 14 is routed horizontally with a surplus length along the rocker panel 8 of the vehicle body 4 from the harness protector 11 on the link arm side. 8 is routed into the vehicle body through the hole 22, held in the hole 22 by an elastic waterproof grommet 23, and a flexible protective tube (corrugated tube made of synthetic resin between the harness protector 11 and the waterproof grommet 23. ) 24 is protected. This harness wiring structure on the vehicle body side is an example, and can be set as appropriate as necessary.

  The harness protector 11 on the link arm side 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.

  In this operation, for example, the harness protector 11 is arranged eccentrically from the axis center of the link arm 2 toward the harness fixing point on the vehicle body side, and the slide protector 11 when the door is fully closed approaches the harness fixing point on the vehicle body side. to cause. The harness fixing point is, for example, a part of the grommet 23 or a part where the corrugated tube 24 is fixed to the rocker panel 8 (near reference numeral 25).

  The other part 14b of the wire harness 14 is gently bent with a large radius from the slide protector 11 to the rocker panel 8 when the door 1 is fully opened, as shown by the solid line in FIG. 1, and from the slide protector 11 to the rocker panel 8 when the door 1 is fully closed. And bent while being folded at a relatively small radius as indicated by a chain line (the bent portion is indicated by reference numeral 26), thereby absorbing the extra harness length.

  As described above, the wire harness 14 is supported on the door side without slack and supported by the rotating grommet 15 so as to be swingable (swingable), and the extra length of the wire harness 14 is generated and absorbed only on the vehicle body side. Therefore, the management point of the extra length is narrowed down to one place (vehicle body side), the design and management for ensuring the constant power supply are facilitated, and the reliability of the constant power supply is improved.

  In the above embodiment, the slide type harness protector 11 including the inner protector 13 and the outer protector 12 is used along the link arm 2. However, instead of the slide type harness protector 11, a single rectangular cylindrical shape is used. Using a harness protector (not shown), the wire harness 14 can be bent and accommodated in the harness protector and pushed out toward the vehicle body as the door 1 is opened and closed.

  In this case, for example, the rotating grommet 15 is fixed to the door side end of the harness protector. Since the rotary grommet 15 is arranged eccentrically from the axis of the link arm 2, the rotary grommet 15 expands and contracts in the longitudinal direction as the link arm 2 rotates (deforms as shown in FIG. 5). Better. The wire harness 14 extends linearly in the harness protector when the door (movable body) 1 is fully opened, and bends in a wave shape or a spiral in the harness protector when the door 1 is fully closed.

  Further, the outer protector 12 on the fixed side of the harness protector 11 is made longer and the inner protector 13 on the movable side is made shorter, and the inner protector is slidably arranged in the outer protector near the vehicle body, not near the door, and the rotating grommet 15 It is also possible to fix to the door side end 12a of the outer protector 12. Also in this case, it is better to provide the pushback wall 41.

  Further, a rail (not shown) is provided along the link arm 2, and a cylindrical harness protector (not shown) is slidably engaged with the rail, and the wire harness 14 is inserted and fixed to the harness protector. And it is also possible to make it slide integrally with the harness protector. In this case, the rotation grommet 15 is fixed to the end portion on the door side of the harness protector, and expands and contracts integrally with the sliding operation of the harness protector.

  Moreover, in the said embodiment, although the ditch | groove 36 of the fitting part 35 of the rotary grommet 15 was engaged with the collar part 37 of the harness protector 16 by the side of a door, contrary to this, the harness protector 16 by the side of a door It is also possible to form a fitting part (35) having a concave groove (36) in the upper part and form a flange part (37) in the rotary grommet 15.

  Moreover, in the said embodiment, although it wired in the state in which the wire harness 14 was exposed in the rocker panel 8 side of the vehicle body (fixed body) 4, it corrugated to the exposed part (a code | symbol 14b substitutes) of this wire harness 14. It is possible to attach a tube, or to attach an elastic waterproof grommet or a swing type protector (not shown).

  Moreover, the shape of the harness protector 16 and the waterproof grommet 17 on the door (movable body) side can be appropriately set as long as the wire harness 14 is firmly fixed without generating a surplus length.

  In addition to the link door 1 of the automobile as a link type movable body, the link type movable body harness such as a link type door such as a train or a locomotive, a link type door or a link type cover of a processing machine or an inspection device, etc. It is also possible to apply a routing 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 perspective view at the time of door full open which shows the harness protector and the harness protector structure by the side of a door similarly along a link arm. It is a perspective view at the time of a door fully closed which similarly shows the rotation grommet which connects between both harness protectors. It is a longitudinal cross-sectional view which similarly shows the structure of the rotation grommet, the door side harness protector, and its vicinity. It is explanatory drawing (side view) which shows the state which a rotation grommet deform | transforms with a continuous line and a chain line. It is a top view which shows the pushback wall which suppresses rotation of a link arm, a rotation grommet, and its deformation | transformation. 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 Link arm 4 Vehicle body (fixed body)
DESCRIPTION OF SYMBOLS 11 Harness protector 14 Wire harness 15 Rotating grommet 16 Door side harness protector 34 Cylindrical wall (vertical part)
35 fitting part 36 concave groove 37 collar part 39 bellows part 41 pushing back wall θ opening angle S ₁ gap

Claims (5)

  The movable body is connected to the fixed body by a horizontal link arm so as to be opened and closed. A harness protector is provided along the link arm, and one end of the rotating grommet is connected to the harness protector, and the other end of the rotating grommet is connected to the movable body. Linkable movable, characterized in that it is rotatably engaged with a vertical part of the harness protector on the movable body side, and the wire harness is inserted inside the harness protectors and the rotating grommet while being fixed on the movable body side. Body harness routing structure.   The harness routing structure for a link type movable body according to claim 1, wherein a concave groove in a fitting portion on the other end side of the rotary grommet is engaged with the flange portion of the vertical portion.   3. The link movable body harness wiring structure according to claim 1, wherein a pushback wall is provided on the movable body side to suppress deformation of the rotating grommet when the movable body is opened and closed.   4. The harness movable structure for a link type movable body according to claim 3, wherein the push-back wall is formed in a curved shape with the same opening angle as the rotation angle of the link arm.   The clearance gap between the said pushing-back wall and the other end part of the said rotation grommet was narrowly set so that the disconnection of this other end part from the said perpendicular | vertical part might not be produced. Link-type movable harness wiring structure.

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