JP4033124B2 - Wiring harness routing structure for vehicles - Google Patents

Description

    In the present invention, a wire harness is routed along a panel surface of a passenger compartment, the wire harness is covered together with the panel surface by an interior member of the passenger compartment, and a distal end portion of the wire harness is connected to the outside of the interior member from a terminal portion of the interior member. The present invention relates to a wiring harness wiring structure for a vehicle that extends to a vehicle.

  Taking a wire harness connected to a defogger of a back door such as a wagon car, as shown in FIG. 8, a defogger hot wire heater 8 is attached to the surface of the window glass 9 of the back door D on the vehicle interior side. In addition, connectors 80 at both ends of the hot-wire heater 8 are provided at the left and right corners of the upper end of the window glass 9, respectively. The wire harness 2 for the defogger is extended to the vicinity of both the left and right corners along the vehicle room side panel surface of the upper edge frame 1 of the back door D, and the main body of the wire harness 2 is the panel of the upper edge frame 1. Together with the surface, it is covered with garnish 3B which is an interior member of the passenger compartment. Note that the wire harness is covered and fixed to the panel surface of the upper edge frame 1 by a not-shown clamp or the like. As shown in FIG. 9, the tip 20 of the wire harness 2 is extended to the outside of the garnish 3B through an opening 31B cut out from the terminal wall 30 of the end of the garnish 3B located near the corner. The tip connector 21 is connected to the connector 80 of the defogger.

  By the way, the wiring position is unstable at the front end portion 20 of the wire harness 2 attached to the upper edge frame 1 side of the door, and when the garnish 3B is attached to the panel surface of the upper edge frame 1 from the passenger compartment side, The tip 20 of the wire harness 2 is likely to be displaced with respect to the opening 31B of the 3B, and the wire harness 2 may be caught between the panel surface and the terminal wall 30 of the garnish 3B. Therefore, in order to prevent the wire harness 2 from being bitten, the opening width of the opening 31B of the garnish 3B is increased to cope with the positional deviation of the distal end portion 20 of the wire harness 2. However, if the opening width is large, the opening 31B is conspicuous and the appearance is impaired.

  In order to prevent displacement of the wire harness, a plurality of side walls facing each other are formed in the longitudinal direction on the inner surface side of the interior member as described in Patent Document 1 below, and the wire harness is arranged between the side walls. And a wiring structure that melts and holds the wire harness on the inner surface of the interior member by partially melting the side wall, or a magnet portion on the inner surface side of the interior member as described in Patent Document 2 below. Or a magnetized part and a magnetized part or magnet part on the wire harness side so that the magnetized part or magnetized part of the wire harness is magnetized on the magnet part or magnetized part of the interior member A structure has been proposed.

However, in either of the wiring structures of Patent Documents 1 and 2, the wiring harness must be routed along the inner surface of the interior member, and the wiring work that holds the wiring harness is troublesome. There was a problem that the structure became complicated.
JP-A-10-181466 Japanese Patent Laid-Open No. 11-178172

  Accordingly, the present invention provides a wire harness routing structure in which the tip of a wire harness covered with an interior member is extended to the outside of the interior member. It is possible to improve the workability of the wiring harness wiring by inserting the wire harness through the opening of the terminal portion of the interior member, and to improve the appearance of the terminal portion of the interior member extending the wire harness. An object of the present invention is to provide a wiring harness routing structure.

According to the present invention, a wire harness is routed along a panel surface of a passenger compartment, the wire harness is covered together with the panel surface by an interior member of the passenger compartment, and a distal end portion of the wire harness is opened from an opening of a terminal portion of the interior member In the wiring harness wiring structure for a vehicle in which the wire harness extends outside the interior member, the wire harness is routed along a substantially square-shaped recess in the panel surface, and the wire harness is adjacent to the end portion of the interior member. A holding member for holding the wire harness surrounding the outer periphery of the wire harness with the recess is attached to a portion housed in the interior member at a position and having a substantially L-shaped or cross-sectional shape facing the recess. to the terminal portion proximate position in the interior of the member, the in the rib to form a rib in a direction perpendicular to the wire harness notch to engage the retaining member Form, notch is formed substantially Ku-shaped folding bending angle is larger than the folding bending angle of the bent portion of the holding member of the bent portion, the notch the holding when coating the wire harness in the interior member By engaging with the member, the holding member is guided and positioned at a position where the distal end portion of the wire harness is inserted into the opening of the terminal portion (claim 1).

When attaching the interior member, the notch of the interior member guides the holding member of the wire harness to a position where both the bent portions match, so that the wire harness is in a proper position to be inserted into the opening of the terminal portion of the interior member. Since it is corrected and positioned, the interior member can be attached with good workability without fear of biting of the wire harness. Moreover, the opening part of the terminal part of an interior member can be made into the minimum required size which can insert a wire harness, and can improve appearance.

The holding member is made of synthetic resin, along the wire harness includes an extension extending in the innermost direction of the interior member, the distal end of the extension portion is fixed to the panel surface (claim 2). Before attaching the interior member to the panel surface of the vehicle body, the wire harness is temporarily fixed to the panel surface by the retaining member having the extension, and when the interior member is attached, the body of the retaining member is bent while the extension of the retaining member is bent. It is guided to a regular position by the rib of the interior member.

  According to the present invention, when attaching the interior member, the distal end portion of the wire harness is automatically positioned at a proper position through which the opening of the terminal portion of the interior member is inserted. Accordingly, the interior member can be easily attached without any fear of biting the wire harness. In addition, since the wire harness is positioned at a proper position, the opening of the terminal portion of the interior member can be made the minimum necessary size for inserting the wire harness, and the appearance of the terminal portion of the interior member from which the wire harness extends can be seen. Can be improved.

First, a wire harness routing structure that has been developed by the inventors in the process of achieving the present invention and forms the basis of the present invention will be described as a reference example. As shown in FIG. 8, the wire harness 2 extends along the vehicle compartment side of the door upper edge frame 1 of the back door D to the vicinity of both left and right corners of the upper end of the window glass 9. The wire harness 2 is covered with a garnish 3 that is an interior member of the passenger compartment that covers the upper edge frame 1. And the front-end | tip part of the wire harness 2 is extended from the terminal part of the garnish 3 to the garnish 3 outer side, and is connected with the terminal connector 80 of the heat ray heater 8. FIG.

1 to 4 show a wire harness wiring structure of a reference example. In addition, the wiring structure of the front-end | tip of the right-and-left both sides of the wire harness 2 is the same structure, and it demonstrates centering around one wiring structure. As shown in FIGS. 1 to 3, the panel surface on the passenger compartment side of the upper edge frame 1 of the back door D is substantially flat, and the wire harness 2 is routed along the panel surface.

  A holding member 4 is attached in the vicinity of the distal end portion 20 of the wire harness 2. The holding member 4 includes a main body 40 having a substantially U-shaped cross section surrounding the outer periphery of the wire harness 2, and a thin and narrow width extending from the main body 40 along the wire harness 2 toward the center of the upper edge frame 1 (inner depth direction of the garnish 3). Synthetic resin integral molding comprising a belt-like extension portion 41 and a locking portion 42 which is provided at a curved tip portion where the tip of the extension portion 41 is bent upward and is locked to the panel surface of the upper edge frame 1. Is the body.

  The holding member 4 arranges the wire harness 2 along the center position in the width direction inside the main body 40 and the extension portion 41, and attaches the wire harness 2 with an adhesive tape at a site near the main body 40 of the extension portion 41. The harness 2 is held. A misalignment prevention protrusion 403 is provided on the inner surface of the bottom wall 401 of the main body 40 so as to prevent the position of the wire harness 2 from being displaced from the center in the width direction. Yes.

  The holding member 4 fits and locks the locking leg of the locking portion 42 protruding to the panel surface side of the upper edge frame 1 into the locking hole of the panel surface, and the outer surface of the bottom wall 401 of the main body 40 is brought into contact with the panel surface. The wire harness 2 is temporarily fixed and held on the upper edge frame 1 side in a state of contact.

  A garnish 3 that covers the panel surface of the upper edge frame 1 is an integrally molded body of synthetic resin having a substantially U-shaped cross section that opens toward the upper edge frame 1, and a terminal portion is closed by a terminal wall 30. The terminal wall 30 is formed with an opening 31 through which a part of the edge is cut out in a U-shape so that the tip 20 of the wire harness 2 can be inserted outside the garnish 3.

  Inside the garnish 3, ribs 32 are integrally formed at a position close to the terminal wall 30 corresponding to the main body 40 of the holding member 4 attached to the wire harness 2 with a slight gap in parallel with the terminal wall 30. is there. The rib 32 has a vertical wall shape substantially perpendicular to the wiring direction of the wire harness 2, and the edge of the rib 32 abuts against the panel surface of the upper edge frame 1 when the garnish 3 is attached to the upper edge frame 1. It is like that.

  A trapezoidal notch 33 is formed at the edge of the rib 32 corresponding to the opening 31 of the terminal wall 30. The opening width of the notch 33 is sufficiently larger than the width of the main body 40 of the holding member 4, and the width of the bottom edge 34 is a width that matches the width of the main body 40. The opposite side edges 35 of the notch 33 are tapered so as to spread in a C shape from both ends of the bottom edge 34 toward the opening side. The depth of the notch 33 is substantially the same as the height of the main body 40 of the holding member 4. The notch 33 is formed at a position where the center of the bottom edge 34 in the width direction coincides with the center position in the width direction of the opening 31 of the terminal wall 30 of the garnish 3 (YY line position in FIG. 2).

  The garnish 3 configured in this manner is attached from the passenger compartment side so as to cover the panel surface of the upper edge frame 1 and the wire harness 2, and the notch 33 of the rib 32 is the main body of the holding member 4 of the wire harness 2. 40, the both ends of the bottom edge 34 abut the tip edges of the side walls 402 of the holding member 4. Thereby, the front end portion 20 of the wire harness 2 held at the center in the width direction of the main body 40 of the holding member 4 and the center position of the opening portion 31 of the terminal wall 30 of the garnish 3 are matched, and the front end portion 20 of the wire harness 2 is matched. Extends through the opening 31 to the outside of the garnish 3. Although not shown, the garnish 3 is fixedly secured to the panel surface of the upper edge frame 1 at a plurality of locations. Further, the distal end portion 21 of the wire harness 2 has a distal end connector 21 connected to a connector 80 of a defogger hot wire heater 8 terminal.

As shown in FIG. 4, when the garnish 3 is attached to the panel surface of the upper edge frame 1, the positions of the main body 40 of the holding member 4 and the wire harness 2 held by the holding member 4 are displaced with respect to the notch 33 of the rib 32. If the garnish 3 is pressed against the panel surface of the upper edge frame 1 from the passenger compartment side as indicated by a white arrow, the tip of one side wall 402 of the main body 40 is notched with one of the tapered shapes of the notches 33. The main body 40 is brought into contact with the side edge 35 and is automatically guided by the side edge 35 to a position where the front ends of the side walls 402 coincide with the bottom edge 34 of the notch 33, thereby routing the front end portion 20 of the wire harness 2. The position is corrected to a position that matches the opening 31 of the garnish 3.

According to this structure, even if the wire harness 2 routed on the panel surface of the upper frame 1 is misaligned, the wire harness 2 is automatically corrected to the normal position when the garnish 3 is attached. Therefore, the garnish 3 can be attached with good workability without the wire harness 2 being bitten between the panel surface of the upper edge frame 1 and the garnish 3.

  Further, the opening 31 of the garnish 3 through which the wire harness 2 is inserted does not need to be wide as in the conventional structure, and is the minimum size necessary for inserting the wire harness 2, so that the opening 31 is conspicuous. The appearance of the garnish 3 terminal can be improved.

This structure is a simple structure in which the wire harness 2 is provided with the holding member 4 surrounding the outer periphery thereof, while the rib 32 is provided inside the garnish 3 and the notch 33 is formed at the edge thereof.

Next, an embodiment of the present invention will be described with reference to FIGS. The basic structure of the present embodiment is substantially the same as the reference example described above, and the description will focus on the differences. In the drawings, the same members are denoted by the same reference numerals, and description thereof is omitted. As shown in FIGS. 5 to 7, the panel surface of the upper edge frame 1 </ b> A of the back door D is a recess 10 whose lower half is bent in a substantially square shape in cross section, and the wire harness 2 extends along the recess 10. Is routed.

  The holding member 4A for holding the wire harness 2 has a main body 40A formed in a substantially L-shaped cross section facing the recess 10 and has one end of the main body 40A abutting against one inclined surface 11 of the recess 10 and the other. The end is brought into contact with the other inclined surface 12 of the recess 10 to form a space through which the wire harness 2 is passed between the main body 40 </ b> A and the recess 10.

  The extension portion 41 extends from the main body 40A along the indentation 10, the tip is bent upward along the one inclined surface 11, and a locking portion 42 is provided at the curved tip portion.

  In the holding member 4A, the wire harness 2 is disposed along the bent inner surface of the main body 40A and the extension 41 extending from the main body 40A, and is fixed to the extension 41 with an adhesive tape. The holding member 4 temporarily locks the wire harness 2 with the locking portion 42 fitted and locked to the panel surface of the upper edge frame 1 </ b> A so that the bent inner surface of the main body 40 </ b> A faces the recess 10. In this case, the position of the main body 40A can be changed by bending the extension portion 41.

  The garnish 3A has a rounded and substantially cross-sectional shape. The terminal wall 30 that closes the terminal portion has a portion corresponding to the recess 10 and a part of the edge thereof is cut out in an approximately L shape facing the recess 10. An opening 31 through which the distal end portion 20 of the wire harness 2 is inserted is formed.

  Inside the garnish 3A, ribs 32A are provided in parallel to the terminal wall 30 at a position close to the terminal wall 30 corresponding to the main body 40A of the holding member 4A of the wire harness 2 with a slight gap therebetween. The rib 32A protrudes from the inner surface of the lower half of the garnish 3A and has a vertical wall shape that is substantially orthogonal to the wiring direction of the wire harness 2. The rib 32A has an end edge at a position corresponding to the opening 31 of the terminal wall 30. A notch 33A is formed. The notch 33A is a bottom that comes into contact with the longitudinal outer peripheral side 405 of the main body 40A of the L-shaped holding member 4A of the wire harness 2 when the garnish 3A is attached to the upper edge frame 1A from the passenger compartment side. The edge 34 and the side edge 35 that is bent and extended from the bottom edge 34 in an obtuse angle shape are formed in a substantially square shape. The bending angle of the bent portion of the notch 33A is larger than that of the bent portion of the main body 40A of the holding member 4A.

  In the state where the garnish 3A is attached and the wire harness 2 is routed as shown in FIG. 6, the bent portion of the notch 33A of the rib 32A of the garnish 3A matches the bent portion of the main body 40A of the holding member 4A. In this position, the bottom edge 34 abuts on the outer peripheral side 405 of the main body 40A, and the distal end portion 20 of the wire harness 2 is in a position that matches the opening 31 of the terminal wall 30 of the garnish 3A, and is inserted through the opening 31. ing.

  When attaching the garnish 3A, if the main body 40A of the holding member 4A is displaced downward from the recess 10 of the upper edge frame 1A due to its weight, the weight of the wire harness 2, etc., the garnish 3A is moved to the upper edge frame. When set from the passenger compartment side of 1A, the side edge 35 of the notch 33A comes into contact with the outer surface bent portion of the main body 40A of the holding member 4A, and when the garnish 3A is further pushed in, the main body 40A is guided by the side edge 35 and moves. The main body 40A is positioned at a position where the bent portion thereof matches the bent portion of the notch 33A. At this time, the distal end portion 20 of the wire harness 2 is in a proper position that coincides with the opening portion 31 of the terminal wall 30 of the garnish 3A, and the distal end portion 20 is routed while being inserted into the opening portion 31 without being bitten. .

According to the present embodiment, the same effects as those of the previous reference example can be obtained, and the garnish 3A can be attached with good workability without the possibility of biting at the distal end portion 20 of the wire harness 2. Moreover, the opening part 31 can be made small and appearance can be improved.

In the above embodiment , the extension portion 41 is provided in the main body 40A in order to stabilize the holding of the wire harness 2 by the holding member 4A . However, the extension portion 41 may not be provided and only the main body 40A may be provided. Further , the main body 40A of the holding member 4A is not limited to the L shape, and may be formed in a square shape whose bending angle is smaller than the bending angle of the notch 33A.

It is a principal part front view of the reference example of the wire harness wiring structure of a vehicle . It is sectional drawing in the position which follows the II-II line | wire of FIG. It is sectional drawing in the position which follows the III-III line | wire of FIG. FIG. 4 is a cross-sectional view illustrating an operation of correcting the positional deviation of the wiring position of the wire harness when the interior member is attached, corresponding to FIG. 2. It is a principal part front view of the wire harness wiring structure of the vehicle of this invention. It is sectional drawing in the position which follows the VI-VI line of FIG. It is sectional drawing in the position which follows the VII-VII line of FIG. It is a front view by the side of the compartment of the back door of a car. It is a figure which shows the conventional wire harness wiring structure corresponding to FIG. 1, FIG.

Explanation of symbols

D Back door 1,1A Upper edge frame (panel surface)
10 hollow 2 wire harness 20 tip 3,3A garnish (interior member)
30 Terminal wall (terminal part)
31 Opening 32, 32A Rib 33, 33A Notch 34 Bottom edge 35 Side edge 4, 4A Holding member 40, 40A Main body 402 Side wall 41 Extension part 42 Locking part (tip of extension part)

Claims (2)

The wire harness is routed along the panel surface of the passenger compartment, the wire harness is covered together with the panel surface by the interior member of the passenger compartment, and the tip of the wire harness is connected to the interior member from the opening of the terminal portion of the interior member. In the vehicle wiring harness wiring structure that extends outward,
A wire harness is routed along a recess having a substantially square shape in cross section on the panel surface, and the wire harness is opposed to the recess at a portion housed in the interior member at a position near the terminal portion of the interior member. Attach a holding member that holds the wire harness by encircling the outer periphery of the wire harness with the above-mentioned depression, with a substantially L-shaped or square-shaped cross section ,
In the interior member , a rib is formed at a position close to the terminal portion in a direction perpendicular to the wire harness, and a notch engaging with the holding member is formed in the rib, and the notch is formed in a bent portion. Forming a substantially square shape in which the bending angle is larger than the bending angle of the bent portion of the holding member;
When covering the wire harness with the interior member, the notch is engaged with the holding member, and the holding member is guided and positioned at a position where the distal end portion of the wire harness is inserted into the opening of the terminal portion. A wiring harness wiring structure for a vehicle, characterized in that 2. The vehicle wire harness according to claim 1, wherein the holding member is made of a synthetic resin, and includes an extension portion extending inwardly of the interior member along the wire harness, and a distal end of the extension portion is fixed to the panel surface. Routing structure.

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