JP2016163433A - Wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring harness capable of locking a clip part to a stationary member in a state where a wire group is separated from the stationary member, and making the wire group close to the stationary member in a plurality of stages after locking.SOLUTION: The wiring harness comprises: a head part 12 to which a wire group 1 is tied by a band part 11; a clip part 13 which is locked into a locking hole Q of a vehicle body panel P; and a coupling mechanism 20 for coupling the head part 12 and the clip part 13 in such a manner that an interval of the locking hole Q in an axial direction is set in a plurality of stages. The coupling mechanism 20 includes: a shank 21 extending from the head part 12 to the clip part 13; a cylinder part 22 extending from the clip part 13 to the head part 12; and clip part positioning means 23 and 24 by which positions of the shank 21 in the axial direction to be pushed into the cylinder part 22 are successively fixed in a plurality of stages and restricted in such a manner that the positions are prevented from being moved in a direction where the shank 21 is pulled out of the cylinder part 22.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire harness provided with a clamp that binds an electric wire group and supports it on a fixing member.

  Conventionally, a clamp as shown in FIG. 7 is known (see, for example, Patent Document 1). In this clamp 101, a clip portion 104 having a shaft portion 102 and a pair of locking arms 103 is locked in a locking hole Q of the vehicle body panel P. The clamp 101 includes a clip portion 104, a first attachment portion 105 that supports the clip portion 104, and a second attachment portion 106 on which the electric wire group 110 is banded. Between the second mounting portion 106, there is an adjustment projection 109 having an engagement projection 107 and a plurality of engagement recesses 108 for adjusting the offset amount L in the vertical direction. Thereby, the electric wire group 110 is attached at a low position and then pulled up to a required height.

Japanese Patent Laid-Open No. 11-201327

  However, depending on the wiring condition of the wire harness, there are many cases where the wire group is routed close to the lower side or the upper side along the horizontal body panel, and in the state where the wire harness is approached to the body panel, In some cases, it is difficult to grasp the clip portion and bring it close to the mounting hole of the vehicle body panel. In particular, when the electric wire group is hard and has poor flexibility, such connection becomes more difficult.

  The above-described conventional clamp 101 is proposed to be routed sideways along the vertical vehicle body panel P and above the clip portion 104, and the electric wire group 110 is connected to the horizontal vehicle body panel P. There is a problem that it cannot be applied when routing close to the lower side or upper side.

  The present invention was made in order to solve the above-described problems, and the clip portion can be locked to the fixing member in a state where the electric wire group is separated from the fixing member. It aims at providing the wire harness which can be set as the state which approached the fixing member in multiple steps.

  In order to achieve the above object, the wire harness according to the present invention includes an electric wire group and a band clip that binds the electric wire group and is locked in a locking hole of a fixing member. A band part that binds the electric wire group, a head part that is provided integrally with one end part of the band part, and that has a band part passage through which the other end part of the band part is inserted, and provided in the head part. Band part retaining means for preventing the band part from slipping out from the band part passage, a clip part inserted into and locked in the locking hole part of the fixing member for assembling the electric wire group, and the head part And a coupling mechanism that couples the clip portion so that the axial intervals of the locking hole portions are set in a plurality of stages, the coupling mechanism from the head portion to the clip portion A shaft portion extending integrally, a tube portion extending integrally from the clip portion toward the head portion and having a shaft portion receiving space capable of receiving the shaft portion, and the shaft portion and the tube portion. Clip portion positioning that is formed in between and fixes the axial position of the shaft portion pushed into the tube portion in a plurality of stages in order, and restrains the shaft portion from moving in the direction of being pulled out from the tube portion. Means.

  With this configuration, the wire harness according to the present invention is in a state in which the distance between the head portion and the clip portion is widest when the tip portion of the shaft portion is accommodated in the tip portion of the tube portion. The longer the proportion of the shaft portion accommodated in the portion accommodating space, the narrower the distance between the head portion and the clip portion.

  For this reason, in the wire harness according to the present invention, with the distal end portion of the shaft portion accommodated in the distal end portion of the cylindrical portion, the clip portion is opposed to the locking hole portion of the fixing member, and the cylindrical portion is used as the fixing member. When pressed, the tube portion pushes the clip portion into the locking hole portion of the fixing member, and the clip portion is locked to the locking hole portion in a state where the distance between the head portion and the clip portion is widest. . Therefore, the wire harness which concerns on this invention can latch a clip part to a fixing member in the state which the electric wire group separated from the fixing member.

  Further, the wire harness according to the present invention increases the ratio of the shaft portion accommodated in the shaft portion accommodating space of the cylindrical portion by the clip positioning means after the clip portion is locked to the fixing member. The interval is narrowed and the shaft portion is constrained not to move in the direction of being pulled out from the tube portion. Therefore, the wire harness which concerns on this invention can fix the space | interval of a head part and a clip part in the state suitable for the assembly | attachment of the electric wire group with respect to a fixing member.

  In the above-described wire harness, the clip portion positioning means is arranged so as to be aligned in the axial direction with a fixed claw portion that protrudes radially outward from the distal end portion of the shaft portion and can be pushed toward the center side in the radial direction. And a plurality of window portions into which the fixed claw portions can be fitted.

  With this configuration, in the wire harness according to the present invention, when the fixed claw portion is fitted into one of the plurality of window portions, the shaft portion and the tube portion are maintained so that the head portion and the clip portion maintain a predetermined interval. The relative position in the axial direction is fixed. Therefore, the wire harness which concerns on this invention can fix reliably the space | interval of a head part and a clip part in the state suitable for the assembly | attachment of the electric wire group with respect to a fixing member.

  In the wire harness, the fixing claw portion is positioned on the clip portion side of the locking surface portion, the locking surface portion engageable with the opening edge portion of the window portion from the clip portion side, and the head portion It is preferable to have a guide surface portion that is inclined from the outer side of the shaft portion toward the center side toward the clip portion side from the side.

  With this configuration, the wire harness according to the present invention pushes the fixed claw portion toward the radial center side of the shaft portion, and pushes the shaft portion into the back side of the shaft portion accommodation space of the tube portion via the head portion. The fixed claw portion rides over the opening edge portion of the window portion while the opening edge portion of the window portion and the guide surface portion of the fixed claw portion rub against each other. Therefore, the wire harness which concerns on this invention can set easily the space | interval of a head part and a clip part in the state suitable for the assembly | attachment of the electric wire group with respect to a fixing member.

  In the wire harness according to the present invention, when the fixed claw portion is fitted into the window portion, the locking surface portion of the fixed claw portion comes into contact with the opening edge portion of the window portion. Therefore, the wire harness which concerns on this invention can be restrained reliably so that a shaft part may not move to the direction pulled out from a cylinder part.

  According to the present invention, the clip portion can be locked to the fixing member in a state in which the electric wire group is separated from the fixing member, and after the locking, the electric wire group can be brought into a state of approaching the fixing member in a plurality of stages. A wire harness that can be provided can be provided.

It is a schematic block diagram of the wire harness which concerns on embodiment of this invention. It is a fragmentary perspective view which shows the state before attaching a cylinder part to a axial part in the band clip used for the wire harness which concerns on embodiment of this invention. In the hand clip used for the wire harness according to the embodiment of the present invention, it is a partial cross-sectional view showing a stage of transition from a state where the fixed claw portion of the shaft portion and the window portion of the cylindrical portion are disengaged, ( a) is a state in which the fixed claw portion is fitted to the window portion, (b) is a state in which the fixed claw portion is pushed into the radial center of the shaft portion, and (c) is a guide of the opening edge portion of the window portion and the fixed claw portion. A state in which the surface portions rub against each other, (d) is a state in which the fixed claw portion has passed over the opening edge portion of the window portion. It is a perspective view which shows the state which the space | interval of a head part and a clip part spread most in the band clip used for the wire harness which concerns on embodiment of this invention. It is a perspective view which shows the state which the space | interval of a head part and a clip part narrowed a little in the band clip used for the wire harness which concerns on embodiment of this invention. It is a perspective view which shows the state where the space | interval of a head part and a clip part was the narrowest in the band clip used for the wire harness which concerns on embodiment of this invention. It is a schematic block diagram of the conventional clamp.

  Hereinafter, a wire harness according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the wire harness W according to the present embodiment includes an electric wire group 1 in which a plurality of electric wires 1a are bundled and a band clip 2 that binds the electric wire group 1, and the band clip 2 is attached to the vehicle body. The panel P is locked. The vehicle body panel P corresponds to a fixing member in the present invention.

  The band clip 2 includes a band unit 11 wound around the electric wire group 1, a head unit 12 provided integrally with one end of the band unit 11 and having a band unit passage 12a through which the other end of the band unit 11 is inserted, The clip portion 13 inserted into the locking hole Q formed in the vehicle body panel P to which the electric wire group 1 is assembled and locked, the head portion 12 and the clip portion 13 are connected in the axial direction of the locking hole Q. And a coupling mechanism 20 that is coupled substantially coaxially so that the interval is set in a plurality of stages, and is formed of a resin material such as polypropylene.

  The band portion 11 has a serration 11a having a predetermined length at the other end. The head portion 12 has a fixed claw portion 12b that engages with the groove portion of the serration 11a inside the band portion passage 12a. The engagement structure between the band portion 11 and the head portion 12 is configured in the same manner as a known binding band. The serration 11a and the fixed claw portion 12b correspond to the band portion retaining means in the present invention.

  The band part 11 is wound around the electric wire group 1 and the other end is inserted into the band part passage 12a of the head part 12, and the fixing claw part 12b of the head part 12 is engaged with the groove part of the serration 11a. 1 is in close contact with the outer peripheral surface.

  The clip portion 13 includes a substantially disc-shaped receiving portion 13a, a support portion 13b protruding from one end surface of the receiving portion 13a, a locking arm 13c extending from the distal end portion of the support portion 13b toward the receiving portion 13a, And a protrusion 13d that is formed at the distal end of the stop arm 13c and engages with the inner peripheral edge of the locking hole Q of the vehicle body panel P. The basic structure of the clip portion 13 is substantially the same as that of a known clip portion.

  As shown in FIGS. 2 to 6, the coupling mechanism 20 includes a hollow shaft portion 21 that integrally extends from the head portion 12 toward the clip portion 13, and a receiving portion 13 a of the clip portion 13 toward the head portion 12. And a cylindrical portion 22 having a shaft portion accommodation space 22a that extends integrally and can accommodate the shaft portion 21.

  The shaft portion 21 has a pair of fixing claws 23 that protrude radially outward from the tip portion and that can be pushed radially toward the center. The fixed claw portion 23 is disposed symmetrically about the axis of the shaft portion 21. Moreover, the cylinder part 22 has a plurality of window parts 24 which are opened side by side in the axial direction and into which the fixed claw part 23 can be fitted. The rows formed by the plurality of window portions 24 arranged in the axial direction of the cylindrical portion 22 are arranged symmetrically around the axial line of the cylindrical portion 22 so as to correspond to the fixed claw portion 23.

  The fixed claw portion 23 includes a plate-like spring portion 23a that integrally extends from the back portion of the notch portion 21a formed toward the head portion 12 side from the tip portion of the shaft portion 21 toward the clip portion 13 side, and a plate-like shape. A locking surface portion 23b that protrudes from the distal end portion of the spring portion 23a toward the radially outer side of the shaft portion 21 and can be engaged with the opening edge portion of the window portion 24 from the clip portion 13 side, and a clip portion of the locking surface portion 23b And a guide surface portion 23c which is located on the 13 side and is inclined from the outer side of the shaft portion 21 toward the center side from the head portion 12 side toward the clip portion 13 side. The fixed claw part 23 and the window part 24 correspond to the clip part positioning means in the present invention.

  As shown in FIG. 4, the wire harness W according to the present embodiment has the largest distance between the head portion 12 and the clip portion 13 in the state where the tip portion of the shaft portion 21 is accommodated in the tip portion of the cylindrical portion 22. As shown in FIGS. 5 and 6, the space between the head portion 12 and the clip portion 13 becomes narrower as the ratio of the shaft portion 21 accommodated in the shaft portion accommodating space 22 a of the cylindrical portion 22 becomes longer. .

  For this reason, in the wire harness W according to the present invention, the distal end portion of the shaft portion 21 is accommodated in the distal end portion of the cylindrical portion 22, and the fixed claw portion 23 is fitted to the window portion 24 located closest to the head portion 12 side. In this state, when the clip portion 13 is opposed to the locking hole Q of the vehicle body panel P and the tube portion 22 is pressed toward the vehicle body panel P, the tube portion 22 uses the clip portion 13 to lock the vehicle body panel P. The clip portion 13 is locked in the locking hole Q in a state in which the gap between the head portion 12 and the clip portion 13 is most widened by being pushed into the hole Q.

  That is, the wire harness W according to the present embodiment can lock the clip portion 13 in the locking hole Q of the vehicle body panel P in a state where the electric wire group 1 is separated from the vehicle body panel P in the vertical direction.

  Further, in the wire harness W according to the present embodiment, after the clip portion 13 is locked in the locking hole Q, the fixing claw portion 23 is moved in the radial direction of the shaft portion 21 as shown in FIG. When the shaft portion 21 is pushed toward the center side and the shaft portion 21 is pushed into the inner side of the shaft portion accommodating space 22a of the cylindrical portion 22 through the head portion 12, the opening edge portion of the window portion 24 as shown in FIG. And the guide surface portion 23c of the fixed claw portion 23 rub against each other, as shown in FIG. 3 (d), the fixed claw portion 23 gets over the opening edge of the window portion 24, and as shown in FIG. It fits into the window part 24 on the clip part 13 side. By repeating this, the axial position of the shaft portion 21 pushed into the cylindrical portion 22 is fixed over a plurality of stages.

  That is, the wire harness W according to the present embodiment can be assembled in a state in which the electric wire group 1 approaches the vehicle body panel P in a plurality of stages after the clip portion 13 is locked to the vehicle body panel P. The electric wire group 1 which is hard and has poor flexibility can be easily assembled to the vehicle body panel P.

  Further, in the wire harness W according to the present embodiment, when the fixed claw portion 23 is fitted into the window portion 24, the locking surface portion 23 b of the fixed claw portion 23 comes into contact with the opening edge portion of the window portion 24. Therefore, the wire harness W according to the present embodiment can be surely restrained so that the shaft portion 21 does not move in the direction in which the shaft portion 21 is pulled out from the cylindrical portion 22, and the distance between the head portion 12 and the clip portion 13 is set to the vehicle body. It can be fixed in a state suitable for assembling the electric wire group 1 to the panel P.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and various design changes may be made to the technical scope of the present invention described in the claims without departing from the spirit of the invention. included.

  In the embodiment described above, the cylindrical portion 22 and the clip portion 13 are positioned substantially coaxially. However, instead of this, the clip portion 13 may be configured to protrude laterally with respect to the cylindrical portion 22. It is.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and various design changes may be made to the technical scope of the present invention described in the claims without departing from the spirit of the invention. included.

  As described above, the wire harness according to the present invention can lock the clip portion to the fixing member in a state where the electric wire group is separated from the fixing member. It has the effect of being able to be in a state close to a stage, and is useful for wire harnesses in general.

W Wire harness P Car body panel (fixing member)
Q Locking hole 1 Wire group 2 Band clip 11 Band part 11a Serration (band part retaining means)
12 Head part 12b Fixing claw part (band part retaining means)
13 Clip part 20 Connection mechanism 21 Shaft part 22 Tube part 22a Shaft part accommodation space 23 Fixed claw part (clip part positioning means)
23a Plate-like spring part (clip part positioning means)
23b Locking surface portion (clip portion positioning means)
23c Guide surface part (clip part positioning means)
24 Window part (clip part positioning means)

Claims (3)

An electric wire group, and a band clip that binds the electric wire group and is locked in the locking hole of the fixing member,
The band clip is
A band part for binding the wire group;
A head portion provided integrally with one end portion of the band portion and having a band portion passage through which the other end portion of the band portion is inserted;
Band part retaining means provided on the head part for preventing the band part from coming out of the band part passage;
A clip portion to be inserted and locked into the locking hole portion of the fixing member for assembling the electric wire group;
A coupling mechanism for coupling the head portion and the clip portion so that the axial intervals of the locking hole portions are set in a plurality of stages,
The coupling mechanism is
A shaft portion extending integrally from the head portion toward the clip portion;
A cylindrical portion extending integrally from the clip portion toward the head portion and having a shaft portion accommodating space capable of accommodating the shaft portion;
The axial position of the shaft portion formed between the shaft portion and the tube portion and pushed into the tube portion is fixed in order over a plurality of stages, and the shaft portion is pulled out from the tube portion. And a clip portion positioning means for restraining the wire harness from moving. The clip part positioning means is
A fixed claw that protrudes radially outward from the tip of the shaft and can be pushed toward the radial center;
2. The wire harness according to claim 1, further comprising: a plurality of window portions that are opened so as to be lined up in the axial direction in the cylindrical portion and into which the fixed claw portion can be fitted. The fixed claw portion is
A locking surface portion engageable with the opening edge portion of the window portion from the clip portion side;
And a guide surface portion that is located on the clip portion side of the locking surface portion and is inclined from the outer side of the shaft portion toward the center side from the head portion side toward the clip portion side. The wire harness according to claim 2.

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