JP2009056911A - Holder for wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent generation of noise and to prevent interference to the other member such as a door inner panel and a door trim by eliminating vibration of an excessive part of a wire harness at opening/closing of a door. <P>SOLUTION: In the holder for the wire harness, the excessive part is provided on the wire harness laid from an inner surface side of the door inner panel of the door of the automobile to a vehicle body side, and the excessive part is drawn out from an excessive part absorption part provided at the inside of the door and is drawn-in into the excessive part absorption part according to opening/closing of the door. The holder comprises a resin molded product in which a clip part engaged with the door inner panel for forming the excessive part absorption part; a connection piece part having one end connected to the clip part and provided with a hinge becoming a bending fulcrum; and an annular part continued to the other end of the connection piece part and externally fitted to the wire harness are provided. The hinge of the connection part is bent/stretched according to movement of the excessive part of the wire harness, and it is mounted so as to follow the wire harness. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wire harness holder spanned between an automobile and a door, and more specifically, an extra length portion is provided in the wire harness spanned from the inner surface side of the door inner panel of the side door to the vehicle body side, The present invention relates to a wire harness holder that is pulled out from a surplus length absorbing portion provided inside the door in accordance with opening and closing of the door and that is pulled into the surplus length absorbing portion.

  Conventionally, wire harnesses for doors that are routed to the side door and pulled out to the vehicle body side are routed in a space composed of the door outer panel and the door inner panel, and are drilled on the vehicle body side end surface of the door inner panel In many cases, the pierced through hole is passed to the vehicle body side through a grommet fitted in a through hole formed in the door outer panel of the vehicle body. However, it is very difficult to penetrate the wire harness through the through hole.

  In order to solve the problem, various proposals have been made to route the door inner panel from the indoor surface side to the body side so as not to pass through the through hole. In this way, if the door frame is not provided with a through hole and the wiring is attempted from the vehicle body side to the door side, the wiring harness wiring position is displaced from the hinge coupling position of the vehicle body and the door to the indoor side, and the body and door Since the disconnection occurs due to the bending of the wire harness in the meantime, it is necessary to expand and contract the wire harness when the door is opened and closed to absorb the extra length.

  Japanese Laid-Open Patent Publication No. 58-20405 (Patent Document 2) provides a wiring and piping structure to an automobile door as an extra length of the wire harness having an absorbing function. In the wiring and piping structure, as shown in FIG. 6, as the extra length absorbing function, the inner plate 4 a of the door panel is formed with a housing recess 4 b that is recessed outwardly from the vehicle, and when the door 1 is closed, the wire harness W The central portion 5 of / H bends in the storage recess 4b to absorb the extra length when the door is closed.

  However, in the wiring and piping structure to the door of an automobile disclosed in Patent Document 2, the wire harness W / H is routed without being fixed to the inner plate 4a. When the center portion 5 of the swaying member swings, it may interfere with the inner plate 4a and generate noise, and the wire harness W / H may be damaged.

Japanese Utility Model Publication No. 58-20405

  The present invention has been made in view of the above problems, and in the wire harness surplus length absorption structure, the occurrence of abnormal noise is prevented by eliminating the swing of the wire harness in the surplus length absorbing portion inside the door when the door is opened and closed. In addition, it is an object to prevent interference with other members such as a door inner panel and a door trim.

In order to solve the above-described problems, the present invention provides an extra length portion in a wire harness that extends from the inner surface side of a door inner panel of an automobile door to the vehicle body side, and the extra length portion is adapted to open and close the door. A wire harness holder that is pulled out from the surplus length absorbing portion provided inside the door and pulled into the surplus length absorbing portion,
A clip portion that is locked to the door inner panel that forms the extra length absorbing portion, a connection piece portion having one end connected to the clip portion and a hinge serving as a bending fulcrum, and continuous to the other end of the connection piece portion In addition, it is made of a resin molded product provided with an annular part that fits externally to the wire harness, and the hinge of the connecting part bends and stretches according to the movement of the extra length of the wire harness so that it can follow the wire harness. There is provided a wire harness retainer characterized by the above.

The wire harness is pulled out from the wire harness outlet of the door trim and routed to the vehicle body side, and is fixed to the door inner panel at a lower position at a predetermined distance from the wire harness outlet. When the door is closed, the wire harness bends in a U-shape from the outlet to the fixed part in a direction away from the outlet, and when the door is opened, the door is opened and closed by being substantially straight from the outlet to the fixed part. Follow up and absorb extra length.
In the wire harness retainer of the present invention, a connection that can follow the movement of the extra length of the wire harness between the annular portion that fixes one end of the wire harness to the movable wire harness and the clip portion that is fixed to the door side. One part is provided.
The clip portion, the connecting piece portion, and the annular portion of the wire harness holder may be integrally formed with resin or may be provided separately.

  By holding the wire harness of the surplus length absorbing portion with the wire harness holder of the present invention, the wiring path can be stabilized while following the movement of the surplus length portion of the wire harness. Can be prevented.

  It is preferable that the connecting piece bends and stretches only in the direction parallel to the door inner panel forming the extra length absorbing portion, and restricts the displacement of the wire harness in the orthogonal direction close to the door inner panel.

  Thus, since the connecting piece is bent and extended only in the direction parallel to the door inner panel, the wire harness connected to one end of the connecting piece also moves only in the direction parallel to the door inner panel, and when the door is opened and closed While following the movement of the extra length portion of the wire harness, displacement in the direction perpendicular to the axis of the wire harness, that is, the direction of another member that may come into contact with the wire harness on the door side is regulated. Therefore, the door inner panel and other members are not interfered with when the door is opened and closed, so that the generation of abnormal noise can be prevented and the wire harness can be prevented from being damaged.

The connecting piece portion is a thin flat plate, and the hinges are provided at two locations spaced in the length direction of the connecting piece portion, and each hinge is formed by providing a groove on the outer peripheral surface of the connecting piece portion,
Preferably, the connecting piece extends linearly when the door is opened, and is bent into a Z shape or an S shape between the wire harness and the door inner panel with the hinge as a fulcrum when the door is closed.

When the door is opened, the annular portion with the wire harness fitted close to the wire harness lead-out port of the door trim is close to the connecting piece portion, and the two hinge portions are alternately bent. The hinge portion extends away from the wire harness outlet and becomes linear.
In this way, by flexing and extending the connecting deformed portion in accordance with the movement of the extra length portion of the wire harness accompanying opening and closing of the door, the movement of the extra length portion of the wire harness can be smoothly followed, and the wire harness can be It can be moved only in the direction parallel to the panel.

The clip portion that is locked to the door inner panel projects a locking blade portion that is inserted and locked into a through hole formed in the door inner panel from a plate portion that contacts the door inner panel. It is preferable that the connecting piece part is connected to the part.
The connecting piece portion is connected to a plate portion so as to be able to bend and extend in a direction parallel to the door inner panel, and the plate portion is fixed to the door inner panel by a locking blade portion.

As described above, by holding the wire harness of the surplus length absorbing portion with the wire harness retainer of the present invention, the wire path is stabilized and swung while following the movement of the wire harness when the door is opened and closed. By eliminating the, it is possible to stabilize the route.
In addition, since the connecting piece portion can bend and stretch only in the direction parallel to the door inner panel forming the extra length absorbing portion and the displacement of the wire harness in the direction perpendicular to the axis can be restricted, the door inner panel can be opened and closed when the door is opened and closed. In addition, it is possible to prevent the generation of abnormal noise without interfering with other members and to prevent the wire harness from being damaged.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment of the present invention.
A door wire harness W / H (hereinafter referred to as a wire harness W / H) routed to the side door 10 of the automobile is routed toward the vehicle body 20, and between the side door 10 and the vehicle body 20. A grommet 30 is externally mounted on the wire harness W / H of the crossed portion.

Specifically, as shown in FIG. 1, a wire harness W / H routed in a side door 10 (hereinafter referred to as a door 10) includes a door inner panel 12 joined to a door outer panel 11, and the door inner panel. 12 is pulled out from a space sandwiched between door trims 13 attached to the indoor surface side, and the wire harness W / H is pulled out and pulled out from the door 10 side according to the opening and closing of the door 10.
In the space between the door inner panel 12 and the door trim 13, as shown in FIG. 2, a speaker 15 having an arcuate outer peripheral surface is arranged at the corner of the door trim 13, and is wound around the wire harness W / H with tape. Alternatively, the clamp 16 fixed with the band is fixed to the door inner panel 12 at a side position of the speaker 15.

  A wire harness lead-out port 13c serving as a wire harness lead-out position is provided at a position facing the speaker 15 on the vehicle body facing wall 13a of the door trim 13, and the wire harness W / H is drawn out to the vehicle body 20 side through the wire harness lead-out port 13c. Yes. The wire harness W / H drawn from the wire harness outlet 13c is bridged through the indoor side of the weather strip 14 provided on the door 10.

  As shown in FIG. 2, the wire harness W / H routed inside the door 10 is not fixed from the wire harness outlet 13 c to the attachment position of the clamp 16 that fixes the wire harness W / H. The surplus length absorber 50 absorbs the surplus length of the wire harness W / H. The surplus length absorbing portion 50 follows the opening and closing of the door 10 and has a size that allows the wire harness W / H to be bent and accommodated in the surplus length absorbing portion 50 when the door is closed, and from the surplus length absorbing portion 50 when the door is opened. It is pulled out and extended. The electric wire group which comprises the wire harness W / H currently wired in this door 10 has wound the tape roughly.

As shown in FIG. 2, the wire harness W / H is held on the door inner panel 12 by the wire harness holder 40 in the middle from the wire harness outlet 13 c of the surplus length absorbing portion 50 to the clamp 16.
As shown in FIG. 3, the wire harness holder 40 includes a clip portion 41 that is locked to the door inner panel 12, a connecting piece portion 42 that is connected to the clip portion 41 at one end, and the connecting piece portion 42. And an annular portion 43 that is continuous with the other end and is externally fitted to the wire harness W / H. The wire harness holder 40 is integrally formed of resin.

As shown in FIGS. 3 (A) and 3 (B), the connecting piece portion 42 is a strip-shaped thin flat plate, and is formed by providing grooves 42b on the outer peripheral surface at two locations spaced in the length direction. 42a.
The width direction of the connecting piece 42 is arranged perpendicular to the door inner panel 12 and can be bent and stretched only in the direction parallel to the door inner panel 12 with the hinge 42a as a fulcrum. When the door is opened, as shown in FIG. 2 (A), the extra length absorbing portion 50 bends in a Z shape with the hinge 42a as a fulcrum, while when the door is closed, it extends linearly as shown in FIG. 2 (B). To do. The connecting piece 42 may be bent into an S shape with the hinge 42a as a fulcrum.

The clip portion 41 includes a flat plate portion 41 a that contacts the door inner panel 12, and a pair of locking blade portions 41 b and 41 b that protrude from the plate portion 41 a toward the door inner panel 12. Yes. The locking blade portions 41 b and 41 b are inserted and locked into the through holes 12 a of the door inner panel 12 to fix the wire harness holder 40 to the door inner panel 12.
The annular portion 43 has a cylindrical shape, and is externally fitted by inserting the wire harness W / H through the wire harness insertion hole 43a. A side peripheral surface 43 b of the annular portion 43 is connected to one end of the connecting piece portion 42.
The clip portion 41 of the wire harness holder 40 may be fixed to the door trim 13.

Next, the operation of the wire harness W / H interlocked with the opening / closing of the door 10 will be described.
In the state where the door 10 is opened, as shown in FIG. 2A, the wire harness W / H along the outer peripheral surface of the speaker 15 moves from the outer peripheral surface of the speaker 15 as the door 10 opens. It moves in the direction of separating, and the surplus length portion W / Ha of the wire harness W / H is pulled out from the surplus length absorbing portion 50.

At this time, as shown in FIG. 2A, the wire harness W / H moves to the wire harness outlet 13c side in the surplus length absorbing portion 50 and becomes substantially linear. Following the movement of the wire harness W / H, the annular portion 43 that externally fits the wire harness W / H moves in the direction X1 close to the wire harness lead-out port 13c, and the connecting piece 42 supports the two hinges 42a. Are alternately bent into a Z shape.
At this time, as shown in FIG. 4 (A), the connecting piece 42 is bent only in parallel with the door inner panel 12, so that the Y-axis orthogonal direction Y of the wire harness W / H close to or away from the door inner panel 12 is obtained. The displacement of is limited.

  On the other hand, when the door 10 is closed, the surplus length portion W / Ha of the wire harness W / H is accommodated in the surplus length absorbing portion 50 as shown in FIG. Further, the wire harness W / H that has been separated from the speaker is routed along the outer peripheral surface of the speaker 15, bent into a U shape at the top, and pulled out from the upper end position of the wire harness outlet 13c.

At this time, as shown in FIG. 2 (B) and FIG. 4 (B), the annular portion 43 that externally fits the wire harness W / H follows the movement of the wire harness W / H and moves away from the outlet 13c. The connecting piece portion 42 that has moved to X2 and bent in the Z shape when the door is opened becomes substantially straight.
At this time, as shown in FIG. 4B, the connecting piece 42 extends only in parallel with the door inner panel 12, so that the wire harness W / H extends in the orthogonal direction Y close to or away from the door inner panel 12. The displacement is limited, and it moves only in parallel with the door inner panel 12.

  With the above configuration, the wire harness W / H of the surplus length absorbing portion 50 is held by the wire harness holder 40 of this embodiment, so that the movement of the wire harness W / H can be followed while the door inner panel 12 and It bends and stretches only in the parallel directions X1 and X2, and is not displaced in the direction perpendicular to the axis Y. Therefore, the wire harness W / H can be prevented from making an abnormal sound without coming into contact with the door trim 13 and the door inner panel 12, and damage to the wire harness W / H can be prevented.

FIG. 5 shows a second embodiment of the present invention.
The wire harness holder 60 of the second embodiment is different from the first embodiment in that the clip portion 61, the connecting piece portion 62, and the annular portion 63 are separated.
The clip portion 61, the connecting piece portion 62, and the annular portion 63 are each molded from resin, and the clip portion 61 and the connecting piece portion 62, and the connecting piece portion 62 and the connecting portion 64 of the annular portion 63 are provided at the end portions. By inserting the metal fitting pin P through the pin hole H, they are connected to each other so as to be rotatable.
In addition, a grommet 70 is provided on the inner periphery of the annular portion 63, and the wire harness W / H inserted through the annular portion 63 is inserted into the grommet 70 so that the wire harness W / H is fitted on the annular portion 63. It is fixed.
A claw portion 62 b is projected from the coupling portion 64 of the coupling piece portion 62, and a rib 63 a is projected at a position facing the claw portion 62 b of the coupling portion 64 of the annular portion 63. Bending the annular portion 63 in the direction D1 is regulated by bringing the claw portion 62b of the connecting piece portion 62 into contact with the rib 63a of the annular portion 63 in a state where the connecting piece portion 62 and the annular portion 63 are not bent. And it is set as the structure bent only in D2 direction.
By providing the grommet 70 in the annular portion 63, the wire harness W / H and the annular portion 63, which is a resin molded product, are not in direct contact with each other, so that damage to the wire harness W / H can be prevented. In addition, by restricting the rotation direction by bringing the claw portion 62b of the connecting piece portion 62 into contact with the rib 63a of the annular portion 63, the annular portion 63 can be reliably bent in the D2 direction. / H can smoothly follow the movement.
Since other configurations and operational effects are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

It is drawing which shows the wiring structure of the wire harness of 1st Embodiment of this invention. The wiring harness wiring structure is shown (A) is a drawing showing a state in which the door is opened, and (B) is a drawing showing a state in which the door is closed. (A) is a holder plan view for a wire harness, and (B) is a rear view. (A) is sectional drawing which shows the holder for wire harnesses of the state which opened the door, (B) It is sectional drawing which shows the holder for wire harnesses of the state which closed the door. (A) (B) is a figure which shows 2nd Embodiment of this invention. It is a figure which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door 12 Door inner panel 12a Through hole 40, 60 Wire harness holder 41 Clip part 41a Plate part 41b Locking blade part 42 Connection piece part 42a Hinge 42b Groove 43 Ring part 50 Surplus length absorption part W / H Wire harness W / Ha extra length

Claims (4)

An extra length is provided in the wire harness that extends from the inner surface of the door inner panel of the automobile door to the vehicle body, and the extra length is pulled out from the extra length absorber provided inside the door in accordance with the opening and closing of the door. And a wire harness holder that is pulled into the extra length absorbing portion,
A clip portion that is locked to the door inner panel that forms the extra length absorbing portion, a connection piece portion having one end connected to the clip portion and a hinge serving as a bending fulcrum, and continuous to the other end of the connection piece portion In addition, it is made of a resin molded product provided with an annular part that fits externally to the wire harness, and the hinge of the connecting part bends and stretches according to the movement of the extra length of the wire harness so that it can follow the wire harness. A retainer for a wire harness, characterized in that   The connection piece portion bends and stretches only in a direction parallel to the door inner panel forming the surplus length absorbing portion, and restricts displacement of the wire harness in an orthogonal direction close to the door inner panel. The holder for wire harnesses of description. The connecting piece portion is a thin flat plate, and the hinges are provided at two locations spaced in the length direction of the connecting piece portion, and each hinge is formed by providing a groove on the outer peripheral surface of the connecting piece portion,
The connecting piece portion extends linearly when the door is opened, and bends in a Z shape or an S shape with the hinge as a fulcrum between the wire harness and the door inner panel when the door is closed. Item 3. A wire harness holder according to Item 2.   The clip portion that is locked to the door inner panel projects a locking blade portion that is inserted and locked into a through hole formed in the door inner panel from a plate portion that contacts the door inner panel. The wire harness holder according to any one of claims 1 to 3, wherein the connecting piece portion is connected to a portion.

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