JP2006182237A - Wire harness wiring structure between vehicle body and door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure capable of easily attaching a wire harness wiring from a vehicle body side to a door, and eliminating the need of inefficiently dividing a circuit. <P>SOLUTION: The covering material 10 comprises a first chain portion 11 wherein a plurality of units 14 are rotatably coupled with each other and bent in a fixed direction; a second chain portion 12 wherein the plurality of units 14 are rotatably coupled with each other and bent in the fixed direction; and an angle converting unit 13 interposed between the first chain portion 11 and the second chain portion 12, and relay-coupling the second chain portion 12 and the first chain portion 11 while rotating the second chain portion 12 about an axis in regard to the first chain portion 11. One end side is attached to an interior surface side of a back door 41 while a bending direction of the first chain portion 11 is made to match a rotating direction of the back door 41. On the other hand, the other end side is attached to a roof panel 40 while a bending direction of the second chain portion 12 is made to match an interior surface of the roof panel 40, thereby absorbing excessive length. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wire harness routing structure between a vehicle body and a door, and more particularly to a structure for suitably assembling a wire harness, a washer hose, and the like spanned between a roof panel and a back door.

  Conventionally, a wire harness that is spanned between a roof panel and a back door of an automobile is exposed to the outside when the back door is opened, so that a grommet is exteriorized as disclosed in JP 2001-97143 A, and the like. It prevents rainwater from entering and prevents damage to the wire harness.

  Specifically, as shown in FIGS. 9A and 9B, the back door 2 rotates in the vertical direction with respect to the roof panel 1 of the vehicle body, and a waterproof end is provided at the boundary end of the roof panel 1 with the back door 2. The weather strip 6 is provided. The wire harness W / H1 passes through the through holes 2a and 2b of the back door 2, passes through the outdoor area outside the weather strip 6, and then passes through the through hole 1a of the roof panel 1 and returns to the indoor area. Take. At this time, a rubber grommet 3 is externally mounted on a portion located in the outdoor region of the wire harness W / H1, and one end of the grommet 3 is fitted into the through hole 1a and the other end is inserted into the through hole 2a. It is fitted and locked. A roof lining 4 is attached to the indoor surface side of the roof panel 1, and a back door trim 5 is attached to the indoor surface side of the back door 2.

However, since the grommet 3 reliably seals with the through holes 1a and 2a, it is necessary to contract and penetrate the grommet larger than the hole diameter, and there is a problem that the assembling workability is poor. In particular, the operation of penetrating the grommet 3 from the back door 2 side has to pass through the second through hole 2a in a state in which it is not visible to the operator after passing through the first through hole 2b. The burden increases.
In addition, if the wire harness W / H1 is long, it is difficult to penetrate the through holes 1a, 2a, and 2b. Therefore, the wire harness W / H2 is separated from the through hole 1a into a separate wire harness W / H2 at an appropriate position. Although it is necessary to connect, there are problems that the number of wire harnesses and the number of connectors are increased, and that a work for fitting the connector C is required separately, which increases the number of work steps.
JP 2001-97143 A

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide a structure in which a wire harness routed from a vehicle body side to a door can be easily attached and the circuit does not need to be divided inefficiently. Yes.

In order to solve the above-mentioned problems, the present invention provides a plurality of cylindrical unit units that form an insertion space, and externally connects the unit units to each other so as to form a chain shape. It is a structure that is routed between the car body and the door,
The exterior material includes a first chain part in which a plurality of the unit units are rotatably connected and bent in a fixed direction, and a second chain part in which the plurality of the unit units are rotatably connected and bent in a fixed direction; An angle conversion unit that connects the second chain part with the first chain part rotated in an axial direction, and makes the bending direction of the first chain part and the second chain part different from each other. And
In a state where the bending direction of the first chain portion is matched with the rotation direction of the door, one end side of the first chain portion is attached to the indoor surface side of the door,
A vehicle body and a door, wherein the second chain portion is attached to the vehicle body at the other end of the second chain portion in a state in which the bending direction of the second chain portion is aligned with the interior surface of the vehicle body, and the extra length can be absorbed. The wire harness wiring structure between the two is provided.

With this configuration, the exterior material can be bent and absorb the extra length, so it can be installed across the vehicle body and the interior of the door, eliminating conventional grommet penetration work, improving workability To do. That is, when the surplus length absorption range is small as in the conventional grommet, it is necessary to attach it to the outside of the door with a small radius of rotation of the door. And the second chain portion can absorb the extra length, so that the wire harness can be bridged and attached to the indoor side having a large door rotation radius.
Furthermore, when the wire harness is bridged between the vehicle body and the door, it is not necessary to penetrate the vehicle body, so there is no need to divide the wire harness wastefully, and the number of wire harnesses and connectors can be reduced and the number of assembly operations is reduced. Can also be reduced.

  In addition, for example, when a cable bear or the like known as an exterior material capable of absorbing the surplus length is simply bridged between the vehicle body and the door, the surplus length portion of the cable bear hangs down by its own weight, so There is a problem that the indoor space is occupied wastefully by the height dimension in the direction. However, according to the present invention, the first chain part and the second chain part are cross-linked by the angle conversion unit so that the bending direction is different, and the bending direction of the second chain part is aligned with the interior surface of the vehicle body. Therefore, even if the door is closed, an extra length is generated along the indoor surface, and it is possible to prevent a large space from being occupied in a direction perpendicular to the indoor surface, and a sufficient indoor space can be secured.

The door is a back door and the vehicle body is a roof panel, and the bending direction of the second chain portion is orthogonal to the bending direction of the first chain portion,
It is preferable that a roof lining is attached to the interior surface side of the roof panel so as to cover the exterior material.

  With the above configuration, the exterior material can be attached with the bending direction of the second chain portion along the indoor surface of the roof panel, and there is no need to provide an extra length absorption space downward from the roof panel. It becomes possible to make the height space between roof linings very small.

The opening area of the second chain part is smaller than the opening area of the angle conversion unit on the connection side with the second chain part, and a merge part is formed at the opening on the second chain part side of the angle conversion unit. ,
The wire harness is inserted through the second chain part, the angle conversion unit and the first chain part,
It is preferable that a washer hose and / or an antenna wire is inserted into the first chain part through the junction part without being inserted into the second chain part.

  For example, a washer hose or / and an antenna that is inserted from the connecting side with the second chain part of the angle conversion unit and wants to be inserted through the first chain part but cannot be inserted through the second chain part due to restrictions in the wiring direction. In the case where a line is present, with the above-described configuration, the first chain part can be passed from the junction part without passing through the second chain part.

At least one third chain portion is connected to the merging portion of the angle conversion unit,
It is preferable that the washer hose and / or the antenna wire pass through the third chain portion.

  That is, by connecting a third chain part in parallel with the second chain part to the opening on the second chain part side of the angle conversion unit, a washer hose or / and an antenna wire that cannot be inserted through the second chain part is provided. It becomes possible to protect the exterior with the third chain part.

  As apparent from the above description, according to the present invention, since the exterior material of the wire harness can be attached to the interior side of the vehicle body and the door, the conventional grommet penetration operation is abolished and the workability is improved. Furthermore, since it is not necessary to carry out the wire harness through the vehicle body, it is not necessary to divide the wire harness unnecessarily, and the number of parts and the number of assembly operations can be reduced. In addition, the first chain part and the second chain part are cross-linked by the angle conversion unit so that the bending direction of the second chain part is along the interior surface of the vehicle body, so that it is perpendicular to the interior surface even when the door is closed. No extra length is generated in the direction, and an extra length is generated along the indoor surface, so that sufficient indoor space can be secured.

  Also, if the opening area on the side connected to the second chain part of the angle conversion unit is made larger than the opening area of the second chain part, the second chain part is inserted for reasons of arrangement direction restrictions. What cannot be done can be inserted from the junction into the first chain. In that case, if a 3rd chain part is connected to the confluence | merging part of an angle conversion unit, what cannot insert a 2nd chain part can carry out exterior protection by the 3rd chain part.

Embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment. A wire harness W / H, a washer hose H, and an antenna wire A that are bridged between a roof panel 40 and a back door 41 are inserted into the exterior material 10, and the exterior material 10. One end is fixed to the back door 41 and the other end is fixed to the roof panel 40.

  As shown in FIGS. 2 to 4, the exterior material 10 includes a plurality of cylindrical unit units 14 that are rotatably connected to each other and can be bent in a predetermined direction, and a plurality of cylindrical units. The unit unit 14 is connected to each other in a rotatable manner so that the second chain part 12 can be bent in a certain direction, and the second chain part 12 is interposed between the first chain part 11 and the second chain part 12. An angle conversion unit 13 is provided that is cross-linked with the first chain portion 11 rotated 90 degrees around the axis.

The unit unit 14 is integrally formed of a synthetic resin, and as shown in FIG. 4, as shown in FIG. 4, the unit unit 14 has a substantially rectangular tube shape in which an insertion space is formed by the side walls 26, the upper wall 27 and the bottom wall 36. 28 and 29 protrude. On the other side of the upper wall 27 and the bottom wall 36, the connecting piece 31 protrudes from the inside through the step portion 33. In other words, the connecting piece 31 is projected from the inside so as to be along the inner surface side of the connecting wall 28 of the adjacent unit unit 14.
The connection walls 28 and 29 are provided with connection holes 28a and 29a, and arc-shaped notches 28b and 29b are provided at the center portions of the arc-shaped end surfaces of the connection walls 28 and 29. The connecting pieces 30 and 31 have a tapered shape, and a substantially cylindrical connecting protrusion 30a having a tapered portion 30a-1 on the distal end side is projected from the outer surface thereof. The step portion 33 has a substantially arc shape and is provided with a protrusion 34 at the center thereof. Concave portions 35 are formed on both the left and right sides of one end of the upper wall 27, and interference protrusions 32 are provided on the left and right sides of the other end.

As shown in FIG. 3, the first chain portion 11 includes a plurality of unit units 14 having the above-described configuration arranged in the same direction, and the connecting pieces 30 and 31 of the unit unit 14 are connected to the connecting wall 28 of the adjacent unit unit 14. 29, and the connecting protrusion 30a is fitted into the connecting hole 28a from the inside to be connected to each other in a rotatable manner so that it can be bent in the vertical direction on the XZ plane as a whole. Yes.
When the first chain portion 11 is bent, the interference protrusion 32 of the unit unit 14 comes into contact with the concave portion 35 of the adjacent unit unit 14 and the protrusion 34 comes into contact with the edge of the notches 28b and 29b. Is limited to a predetermined range.
As shown in FIGS. 2A and 2B, a fixing unit 15 is attached to one end side of the first linkage portion 11. The fixing unit 15 has a protruding piece 15b protruding outward from the upper wall 15a, and has an arrow-shaped clip portion 15c protruding from the upper surface side of the protruding piece 15b.

  As shown in FIG. 3, the second chain portion 12 is connected to the unit unit 14 in a state where the unit unit 14 is rotated by 90 ° from the unit unit 14 constituting the first chain portion 11, and the connecting pieces 30, 31 of the unit unit 14 are connected. Are inserted between the connecting walls 28 and 29 of the adjacent unit units 14, and the connecting projections 30a are fitted into the connecting holes 28a from the inside to be connected to each other so as to form a chain. It can be bent in the horizontal direction on the Y plane. Further, as shown in FIGS. 2A and 2B, a fixing unit 16 is attached to the other end side of the second linkage portion 12. The fixing unit 16 has a protruding piece 16b protruding outward from the upper wall 16a, and has an arrow-shaped clip portion 16c protruding from the upper surface side of the protruding piece 16b.

The angle conversion unit 13 is integrally formed of synthetic resin, and as shown in FIG. 4, the angle conversion unit 13 has a substantially rectangular tube shape forming an insertion space with both side walls 18, an upper wall 19 and a bottom wall (not shown). The connecting walls 20 and 21 protrude from one side, and the connecting walls 22 and 23 protrude from the other side of the upper wall 27 and the bottom wall.
The connecting walls 20 to 23 are provided with connecting holes 20a to 23a, and arc-shaped notches 20b to 23b are provided in the central portions of the arc-shaped end surfaces of the connecting walls 20 to 23. In addition, recesses 24 and 25 are provided on both the left and right sides of one end of the upper wall 19 and the upper and lower sides of the other end of the side wall 18, respectively.

  Between the connection walls 20 and 21 on one side of the angle conversion unit 13, the connection pieces 30 and 31 at the end of the first linkage part 11 are inserted, and the connection protrusion 30 a is fitted into the connection holes 20 a and 21 a from the inside. Match. On the other hand, between the connecting walls 22 and 23 on the other side of the angle conversion unit 13, the connecting pieces 30 and 31 at the end of the second chain portion 12 are inserted, and the connecting protrusion 30 a is connected to the connecting holes 22 a and 23 a from the inside. Is fitted.

1A and 2A show a state where the back door 41 is closed, and FIGS. 1B and 2B show a state where the back door 41 is opened.
The back door 41 rotates in the vertical direction with respect to the roof panel 40, and a waterproof weather strip 44 is provided at a boundary end of the roof panel 40 with the back door 41. The exterior material 10 inserts the wire harness W / H, the antenna wire A, and the hose H into the communicating internal space, and connects the clip portion 16c of the fixing unit 16 of the second chain portion 12 to the locking hole 40a of the roof panel 40. On the other hand, the clip portion 15c of the fixing unit 15 of the first chain portion 11 is inserted and locked into the locking hole 41a of the back door 41 and fixed. A roof lining 42 is attached to the roof panel 40 side on the lower surface side of the exterior material 10, and a back door trim 43 is attached to the back door 41 side.

In the state in which the back door 41 is closed, as shown in FIG. 2A, the bending direction of the second chain portion 12 where the extra length portion is generated is restrained on the horizontal plane (XY plane). The material 10 does not hang down in the vertical direction (Z direction). Therefore, the extra length absorption direction is regulated without using a guide rail or the like, and the space efficiency is greatly improved. In addition, since the bending direction of the first chain portion 11 is constrained on the vertical plane (ZX plane), the movable range of the exterior member 10 in the horizontal direction Y can also be restricted to a predetermined range.
On the other hand, in the state where the back door 41 is opened, as shown in FIG. 2 (B), the first chain part 11 bends upward and the second chain part 12 absorbs expansion and contraction in the X direction. Smoothly follows the direction separation.

With the above configuration, the exterior material 10 is bent up and down at the first chain part 11 and can absorb the extra length in the horizontal direction at the second chain part 12, so that the chamber between the roof panel 40 and the back door 41 is used. It can be installed over the inside, eliminating the conventional grommet penetration work and improving workability. Further, since the work of penetrating the wire harness W / H through the roof panel 40 and the back door 41 is not required, it is not necessary to divide the wire harness W / H wastefully, and the number of parts and the assembly work man-hour are reduced. Can do.
Even when the back door 41 is closed, the bending direction of the second chain portion 12 is horizontal, so that the extra length portion of the exterior material 10 does not hang down due to its own weight, and the roof panel 40 and roof lining 42 The height dimension L can be kept small, and a large indoor space can be secured.
In this embodiment, the clip portions 15c and 16c are provided for fixing, but a bolt hole may be provided instead. In this embodiment, it is used for connection to the back door, but may be used for other doors.

5 and 6 show a second embodiment.
The difference from the first embodiment is that the first chain part 52 and the angle conversion unit 53 are wide, and the merging part 53 is opened on the second chain part 52 side of the angle conversion unit 53.

  As shown in FIG. 6, the first chain portion 52 has a width in the Y direction of the upper wall 56 and the bottom wall 57 of the unit unit 14 ′ that is twice the width of the second chain portion 12. Further, the angle conversion unit 51 has the width of the upper wall 54 and the bottom wall 55 in the Y direction double the width of the second chain portion 12, and the connecting wall 22, 23 protrudes. Since other configurations are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

  Between the connection walls 20 and 21 on one side of the angle conversion unit 51, the connection pieces 30 and 31 at the end of the first chain portion 52 are inserted, and the connection protrusion 30a is fitted into the connection holes 20a and 21a from the inside. Match. On the other hand, between the connecting walls 22 and 23 on the other side of the angle conversion unit 51, the connecting pieces 30 and 31 at the end of the second linkage part 12 are inserted, and the connecting protrusions 30a are connected to the connecting holes 22a and 23a from the inside. Is fitted. At this time, since the opening area of the second chain part 12 is smaller than the opening area on the connection side with the second chain part 12 of the angle conversion unit 51, the junction part 53 is adjacent to the second chain part 12. Is opened.

When the exterior material 50 of the present embodiment is bridged from the vehicle roof panel 40 to the back door 41 as described above, as shown in FIG. 5, the wire harness W / H is connected to the second chain portion 12, the angle conversion unit. 53 and the first chain part 52 are inserted, while the washer hose H and the antenna wire A are inserted into the junction part 53 without passing through the second chain part 12 and penetrate the first chain part 52.
If it does as mentioned above, even when the washer hose H and the antenna line A cannot be inserted through the second chain part 12 due to the limitation of the wiring direction, they pass through the first chain part 52 through the junction part 53 without any problem. It becomes possible.

7 and 8 show a third embodiment.
The difference from the second embodiment is that one side of the angle conversion unit 61 is connected in parallel with the second chain part 12 by joining the third chain part 63.

  The angle conversion unit 61 projects two pairs of connecting walls 22 and 23 and a connecting wall 62 (the bottom wall side is not shown) in parallel from the other ends of the upper wall 54 and the bottom wall 55. The connecting walls 22, 23, 62 are provided with connecting holes 22a, 62a, and arc-shaped notches 22b, 62b at the center of the arc-shaped end surface. The 3rd chain part 63 is the structure which connected the several unit unit 14 similarly to the 2nd chain part 12, and reverse | inverts the bending direction by rotating 180 degree | times and arrange | positioning. Since other configurations are the same as those of the second embodiment, the same reference numerals are given and description thereof is omitted.

Between the connection walls 20 and 21 on one side of the angle conversion unit 61, the connection pieces 30 and 31 at the end of the first linkage portion 52 are inserted, and the connection protrusion 30a is fitted into the connection holes 20a and 21a from the inside. Match. On the other hand, between the connecting walls 22 and 23 on the other side of the angle conversion unit 61, the connecting pieces 30 and 31 at the end of the second chain portion 12 are inserted, and the connecting protrusion 30a is connected to the connecting holes 22a and 23a from the inside. Is fitted. Further, the connecting wall 62 (the bottom wall side is not shown) is inserted with the connecting pieces 30 and 31 at the end of the third chain 63, and the connecting protrusions 30a and 31a are fitted into the connecting holes 62a from the inside. is doing.
With this configuration, the washer hose H and the antenna wire A that cannot be inserted through the second chain portion 12 can also be externally protected by the third chain portion 63. In addition, in this embodiment, although the two chain parts connected in parallel with one side of the angle conversion unit are two, it is good also as three or more.

(A) (B) is sectional drawing which shows the attachment structure of the wire harness between the back door and roof panel of 1st Embodiment of this invention. (A) (B) is a perspective view which shows the exterior | packing material of 1st Embodiment. It is a principal part perspective view of the exterior material of 1st Embodiment. It is a principal part disassembled perspective view of the exterior material of 1st Embodiment. It is a perspective view which shows the exterior material of 2nd Embodiment. It is a principal part disassembled perspective view of the exterior material of 2nd Embodiment. It is a perspective view which shows the exterior material of 3rd Embodiment. It is a principal part disassembled perspective view of the exterior material of 3rd Embodiment. (A) (B) is drawing which shows a prior art example.

Explanation of symbols

10, 50, 60 Exterior material 11 First chain part 12 Second chain part 13, 51, 61 Angle conversion unit 14 Unit unit 15 Fixing unit 15c Clip part 16 Fixing unit 16c Clip part 18 Side wall 19 Upper walls 20, 21 , 22, 23 Connecting walls 20a, 21a, 22a, 23a, 28a, 29a Connecting hole 30a Connecting projection 40 Roof panel 41 Back door 42 Roof lining 43 Back door trim 44 Weather strip A Antenna wire H Washer hose W / H Wire harness

Claims (4)

A structure in which a plurality of cylindrical unit units forming an insertion space are provided, and the unit units are connected to each other in a rotatable manner so that a chain-like exterior material is sheathed on a wire harness and routed between a vehicle body and a door. Because
The exterior material includes a first chain part in which a plurality of the unit units are rotatably connected and bent in a fixed direction, and a second chain part in which the plurality of the unit units are rotatably connected and bent in a fixed direction; An angle conversion unit that connects the second chain part with the first chain part rotated in an axial direction, and makes the bending direction of the first chain part and the second chain part different from each other. And
In a state where the bending direction of the first chain portion is matched with the rotation direction of the door, one end side of the first chain portion is attached to the indoor surface side of the door,
A vehicle body and a door, wherein the second chain portion is attached to the vehicle body at the other end of the second chain portion in a state in which the bending direction of the second chain portion is aligned with the interior surface of the vehicle body, and the extra length can be absorbed. Wiring harness routing structure between. The door is a back door and the vehicle body is a roof panel, and the bending direction of the second chain portion is orthogonal to the bending direction of the first chain portion,
The wire harness routing structure between the vehicle body and the door according to claim 1, wherein a roof lining is attached to the indoor surface side of the roof panel so as to cover the exterior material. The opening area of the second chain part is smaller than the opening area of the angle conversion unit on the connection side with the second chain part, and a merge part is formed at the opening on the second chain part side of the angle conversion unit. ,
The wire harness is inserted through the second chain part, the angle conversion unit and the first chain part,
The wire between the vehicle body and the door according to claim 1 or 2, wherein a washer hose and / or an antenna wire is inserted into the first chain portion through the merging portion without being inserted into the second chain portion. Harness routing structure. At least one third chain portion is connected to the merging portion of the angle conversion unit,
The wire harness routing structure between the vehicle body and the door according to claim 3, wherein the washer hose and / or the antenna wire is inserted through the third chain portion.

Images