JP2007215386A - Wiring harness branch clamp and wiring harness branch structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring harness branch clamp that can be arranged at the center in a branch when branching a branch wire from a group of electric wires in the wiring harness for wiring, and can be adapted to every branch form without being restricted by the number of branches. <P>SOLUTION: The wire harness branch clamp fixes a branch in the wiring harness, and has first and second clamps 12, 13. The first clamp has: a substrate 15 arranged at the lower side of the branch; a post 16 that is installed vertically on the upper surface of the substrate and passes through nearly the center of the branch in the wiring harness; and a plurality of elastically deformable locking sections 17 that are radially enlarged in a tapered shape from the tip side to the base end side on the outer-periphery surface of the post and are formed from the tip side toward the base end side. The second clamp is a planar member having a through hole 13a where the post passes through while elastically deforming the locking section, and can lock the locking section of the first clamp. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wire harness branch clamp and a wire harness branch structure for clamping a branch portion between a main line and a branch line of a wire harness.

  To assemble a wire harness to be routed in a vehicle, a harness jig is erected on the workbench along the wiring path of the wire harness, and the wire group constituting the wire harness is sequentially routed through the harness jig. After the wiring is completed, an adhesive tape or the like is wound and bound. At the time of assembling this wire harness, the branch wire (branch line) wire harness is branched from the wire harness group of the main line (trunk line) and routed, but at the branch position to the harness jig on the branch line end side through the harness jig The branch line is only branched and arranged, and the branch position between the main line and the branch line is not fixed. Therefore, it is necessary to fix this branch position.

  Conventionally, when fixing a branch portion of a wire harness, after the harness branch processing, for example, as shown in FIG. The branch lines 10b, 10c, 10d, and 10e are branched and converged, or as shown in FIG. 11, the main line 10a and the branch lines 10b, 10c, 10d and 10e are branched and converged, or the main line 10a and the branch lines 10d, 10e, and 10f are branched and bound by the band clamp 7 as shown in FIG. 12, or as shown in FIG. The main wire 10a side and the branch wires 10d, 10e, and 10f side are branched and bound to one end of the cantilever plate clamp 8 in the wiring direction by the tape 9.

  Moreover, the band type clamp for wire harnesses which attaches the two branch winding bands which are extended to the base as a both-end clamp member and wound around the wire harness to the electric wire branching portion which is locked through the insertion locking hole of the base Is known (see, for example, Patent Document 1).

Further, a central partition plate made of a vertical plate as a cantilever clamp member, a branch holding portion projecting from one end surface of the central partition plate in the wiring direction, and a branch holding portion by both side surfaces of the central partition plate It has a trunk holding part and branch line locking part consisting of a U-shaped frame or binding band in the orthogonal direction, and the trunk line and branch line of the wire harness are held through the trunk line holding member, and the trunk line held by the trunk line holding part is in the trunk wiring direction A branch positioning material is known in which the branch line is folded back through a branch holding portion provided on the front end surface of the central partition plate and held in the branch line holding portion and then wired in the branch wiring direction (for example, Patent Document 2). reference).
Japanese Utility Model Publication No. 6-65683 (pages 6 to 7, FIG. 1) Japanese Patent Laid-Open No. 11-34141 (pages 4 to 6, FIG. 2)

  However, since the branch band clamp 1 shown in FIG. 10 has a resin molding structure, as shown in FIG. 14, the width dimension W1 for branching is limited and the number of branches is restricted. 10 and 11 has a resin-molded structure, the lengths L1 and L2 in the wiring direction are limited. Further, the band clamp 7 shown in FIG. 12 and the cantilever plate clamp shown in FIG. 13 cannot be fixed unless they are fixed at a position separated from the branch center O by the width dimension W2, as shown in FIG. The center O and the clamp center O ′ are not at the same position and cannot be arranged at the center of the branch, and it is difficult to branch in a predetermined direction and to be drawn with good appearance.

  Further, any of the clamps shown in FIGS. 10 to 13 needs to secure the length of the clamp in the wiring direction, and may interfere with other parts or cause variations in the harness branching portion. The clamps disclosed in Patent Documents 1 and 2 also have the same problem as described above.

  The present invention has been made in view of the above points, and when the wire harness is assembled, the branch wire harness is branched from the electric wire group of the main wire harness and arranged at the center position of the branch. An object of the present invention is to provide a wire harness branch clamp and a wire harness branch structure that can be applied to any branch form without being restricted by the number of branches.

  In order to achieve the above object, a wire harness branch clamp according to the present invention is a wire harness branch clamp that fixes a branch portion of a wire harness, and includes a first clamp and a second clamp. The clamp has a base plate disposed below the branch portion, a post suspended from an upper surface of the substrate and penetrating through a substantially center of the branch portion of the wire harness, and a base end from the front end side to the outer peripheral surface of the post. And a plurality of engaging portions formed from the distal end side to the proximal end side, the diameter of which increases in a tapered shape toward the side and is elastically deformable. A plate-like member having a through-hole penetrating while being elastically deformed, wherein the locking portion of the first clamp can be locked.

  A harness jig is erected along the wiring path of the wire harness, and a first clamp substrate is placed at substantially the center (the center of the branch) of the harness jig arranged at the branch position, and the column is suspended. And the electric wire group which comprises a wire harness is routed through a harness jig one by one, and a branch line is branched to a predetermined direction centering | focusing on the support | pillar of the 1st clamp arrange | positioned at the branch part. Next, the second clamp is attached to the tip end side of the support column protruding from the approximate center of the branch of the wire harness. The strut is inserted into the insertion hole while elastically deforming the engaging portion that expands in a tapered shape from the distal end side to the proximal end side, and the engaging portion returns to its original shape after inserting the insertion hole. It is fixed to the second clamp. Thereby, the branch part of a wire harness is fixed.

  Moreover, the wire harness branch clamp according to claim 2 of the present invention is the wire harness branch clamp according to claim 1, wherein an inner peripheral surface of the insertion hole of the second clamp is provided with the first clamp. It has the latching claw which latches a latching | locking part, It is characterized by the above-mentioned.

  The locking portion formed in the first clamp post in a tapered shape from the distal end side toward the proximal end side is elastically deformed by the locking claw formed on the inner peripheral surface of the insertion hole of the second clamp. After being inserted and inserted through the locking claw, it returns to its original shape and is locked by the locking claw.

  Moreover, the wire harness branch structure according to claim 3 of the present invention is a wire harness branch structure in which the wire harness branch clamp according to claim 1 or 2 is attached to a branch portion of the wire harness, The branch portion of the wire harness is formed so that the first clamp column penetrates through substantially the center thereof, and the second clamp extends from the tip of the first clamp column protruding from the branch portion of the wire harness. Is inserted, and the locking part of the first clamp is fixed in a retaining state by the locking claw of the second clamp.

  A harness jig is erected along the wiring path of the wire harness, and a first clamp substrate is placed at substantially the center (the center of the branch) of the harness jig arranged at the branch position, and the column is suspended. And the electric wire group which comprises a wire harness is routed through a harness jig one by one, and a branch line is branched to a predetermined direction centering | focusing on the support | pillar of the 1st clamp arrange | positioned at the branch part. Next, an engaging portion that is inserted into the insertion hole of the second clamp from the distal end side of the support column that protrudes from the approximate center of the branch of the wire harness and expands in a tapered shape from the distal end side to the proximal end side of the support column. It is inserted while being elastically deformed by a locking claw formed on the inner peripheral surface of the insertion hole. After the locking portion is inserted through the locking claw, the locking portion returns to its original shape, is locked by the locking claw, and is fixed in a retaining state. Thereby, the branch part of a wire harness is fixed.

  Moreover, the wire harness branching structure according to claim 4 of the present invention is the wire harness branching structure according to claim 3, wherein the tip end side of the first clamp column protruding above the branching part of the wire harness is It is characterized by being cut and removed by a predetermined length.

  The front end side of the first clamp column protruding from the second clamp is cut to a predetermined length and removed, so that the front end of the column does not interfere with other parts and the appearance is improved.

  Moreover, the wire harness branching structure according to claim 5 of the present invention is the wire harness branching structure according to claim 3 or claim 4, wherein the first clamp column protrudes from above the second clamp. Is an anchor portion, which is characterized by being inserted and fixed in a wire harness mounting hole formed in the vehicle body.

  When the wire harness diameter is thin and the length of the upper part of the column protruding from the second clamp of the branching portion is long, the wire harness is formed on the vehicle body by cutting at a position where a plurality of locking portions are left to be an anchor portion. It is inserted into the mounting hole and locked by the locking portion. When the wire harness diameter is large and the length of the upper portion of the support column protruding from the second clamp at the branching portion is short, it is used as it is as the anchor portion without being particularly cut.

  Moreover, the wire harness branch structure according to claim 6 of the present invention is the wire harness branch structure according to any one of claims 3 to 5, wherein the branch portion of the wire harness is held in a branched state by tape winding. It is characterized by being.

  The branch part of the wire harness branched by the first clamp and the second clamp is wound with a tape to fix the wire harness and the first and second clamps integrally. Thereby, the branch state of the branch part of a wire harness is hold | maintained. Further, by winding the tape, the first clamp and the second clamp are not visible from the outside, and the appearance is improved.

  According to the present invention, the columnar column is suspended substantially at the center of the upper surface of the substrate of the first clamp, so that it can be easily penetrated through the center of the branch, so that the branch line looks good in a desired direction. Can be branched. Further, it is not limited by the number of branches, and can be applied to any branching form, and is easily clamped. In addition, since the shape is simple, the mold drawing direction is simple and the manufacture is easy.

  Moreover, since the post of the first clamp protruding from the second clamp can be cut after fixing the branch portion, the length of the post can be formed long, and various harnesses from small diameter to large diameter Can adapt to the diameter. Furthermore, the column of the first clamp can be easily cut and shortened with an appropriate length, and the appearance can be improved and interference with other parts can be prevented.

  Further, after fixing the branching portion, the upper portion of the first clamp post protruding from the second clamp can be inserted into the wire harness mounting hole formed in the vehicle body as an anchor portion and locked. It can be fixed to the car body easily and nicely.

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an assembly perspective view of a wire harness branch clamp according to the present invention. The wire harness branch clamp 11 includes a first clamp 12 and a second clamp 13. In the first clamp 12, a columnar column 16 is suspended from the center position of the upper surface of the rectangular substrate 15, and the length thereof is set to a length applicable to a certain wire harness diameter. A large number of locking portions 17 are formed on the outer peripheral surface of the support column 16 from the vicinity of the distal end portion 16a to the vicinity of the proximal end portion 16b with a predetermined interval (pitch) along the axial direction.

  The locking portion 17 is circular with a diameter larger than that of the support column 16 and is concentric with the support column 16. As shown in FIG. 1, the locking portion 17 expands in a tapered shape from the distal end portion 16a side to the proximal end portion 16b side. It has a circular fin shape (umbrella shape) that is diameter and inclined when viewed from the side (see FIG. 2). Further, as shown in FIG. 2, the locking portion 17 gradually decreases in thickness with a taper from the base portion (connected portion with the column 16) 17 a toward the outer peripheral edge portion (tip portion) 17 b. It is formed to become. The first clamp 12 is integrally formed of a resin member. Accordingly, the locking portion 17 has elasticity, and the outer peripheral edge portion 17b can be elastically deformed (deformed so as to squeeze the umbrella) in the tapered direction. The first clamp 12 has a simple shape, a simple die cutting direction, and is easy to manufacture.

  As shown in FIG. 1, the second clamp 13 is a substantially quadrangular plate-like member that is slightly larger than the substrate 15 of the first clamp 12, and a locking portion 17 formed on the column 16 at the center. As shown in FIG. 2, the opening ends 13b and 13b on both sides are chamfered so that the column 16 and the locking portion 17 can be seen from any opening end side. Easy to insert. And the latching claw 18 is formed in the inner peripheral surface substantially center position of the insertion hole 13a so that it may protrude concentrically inward (center direction) along the circumferential direction.

  As shown in FIG. 2, the locking claw 18 has a mountain shape with a substantially isosceles triangle shape, and the inner diameter of the sharp tip (ridge) is slightly larger than the outer diameter of the support column 16. The thickness of the base portion is substantially the same as the interval (pitch) of the locking portions 17 formed in the axial direction on the support column 16. The first clamp 13 is also integrally formed of a resin member.

  Then, when the second clamp 13 is fitted to the first clamp 12, when the support 16 of the first clamp 12 is inserted into the insertion hole 13 a of the second clamp 13 in the direction of arrow A in FIG. The locking claw 18 of the second clamp 13 acts so as to sag the locking portion 17 that forms a taper shape (an umbrella shape) in the insertion direction, and can be easily inserted. However, although the locking claw 18 acts to warp the locking portion 17 that tapers in the insertion direction with respect to the direction of the arrow B, the locking portion 17 is unlikely to warp and is difficult to come off. That is, the locking portion 17 of the first clamp 12 has a structure in which the second clamp 13 can be easily attached to the support column 12 and is not easily detached.

  The clamp 11 is arranged at the center position of the branch of the wire harness, and the substrate 15 and the second clamp 13 of the first clamp 12 have a shape smaller than the outer diameter of the wire harness, and the center of the branch The struts 16 of the first clamp 12 located at a small diameter are also used. In addition, the shape of the board | substrate 15 of the 1st clamp 12 and the 2nd clamp 13 is not restricted to the square shape mentioned above, Other shapes, for example, circular, may be sufficient.

  The usage example of the clamp of the said structure is demonstrated below. For the assembly of the wire harness, a harness jig is erected along the wiring path of the wire harness on the work table, and the wire groups constituting the wire harness are sequentially routed through the harness jig. And when fixing the branch part of a wire harness, as shown in FIG. 3, the board | substrate 15 of the 1st clamp 12 is set to the approximate center position of the mounting base 22 of the harness jig 21 arrange | positioned in a branch position, ie, the center position of a branch. Mount and suspend the column 16. Since the column 16 has a rod shape (cylindrical shape), it can be easily arranged at the center position of the branch.

  Next, as shown in FIG. 4, a group of wires constituting the wire harness 10 is sequentially arranged on the mounting table 22 of the harness jig 21 and the substrate 15 of the first clamp 12 (see FIG. 3). Branch lines (branches) 10b, 10c, 10d, and 10e are branched in a predetermined direction and extended. The locking portion 17 is inclined in a tapered shape (on the umbrella) from the distal end side toward the proximal end side (downward), so that when the electric wire group is routed from above the support column 16, the locking portion 17 It is possible to slide down 17 and easily arrange.

  The support | pillar 16 is formed long as mentioned above, and can be applied to a certain amount of wire harness diameter. In this state, the upper part of the support column 16 protrudes from the wire harness 10. Next, as shown in FIG. 5, the 1st clamp 12 is converged with the tape 23 with the wire harness 10, and the branch part 10g is formed. Accordingly, the substrate 15 is wound by the tape 23 and is not visible from the outside. Further, the upper portion of the column 16 protrudes upward from the tape 23.

  Next, as shown in FIG. 6, the second clamp 13 is attached to the support 16 and pressed against the tape 23. As shown in FIG. 2, the second clamp 13 is locked by a locking portion 17 formed on the column 16 with a locking claw 18, and is locked and fixed at this position so as not to deviate. Thereby, the branch part 10g of the wire harness 10 is fixed. Next, as shown in FIG. 7, the upper portion of the column 16 protruding from the second clamp 13 is cut with a margin leaving an appropriate position, for example, about one locking portion 17 as shown in FIG. Thereby, the protrusion part of the branch part 10g becomes short, and it can improve appearance, and can also prevent interference with other components.

  Further, the support column 16 has a cylindrical shape, the locking portion 17 has a concentric shape with the support column 16, the insertion hole 13a has a circular shape, the opening ends 13b on both sides thereof are chamfered, and the cross-sectional shape of the locking claw 18 Has a substantially isosceles triangle shape, the second clamp 13 can be mounted on the support column 16 in any direction without any distinction between the upper and lower sides and the front, rear, left, and right directions, thereby improving workability. Figured.

  Further, as shown in FIGS. 8 and 9, the tip end portion of the column 16 protruding from the second clamp 13 is cut at a position where a plurality of, for example, about four locking portions 17 are left to form an anchor portion. It may be inserted into the formed hole 26 for attaching the wire harness and fixed by the locking portion 17. When the wire harness 10 is attached to the vehicle body 25 in this manner, the first and second clamps 12 and 13, that is, the wire harness branching clamps 11 are completely invisible from the outside, and the appearance is improved.

It is an assembly perspective view of the wire harness branch clamp concerning the present invention. It is principal part sectional drawing of the state which assembled | attached the wire harness branch clamp shown in FIG. It is a perspective view in the state where the 1st clamp shown in Drawing 1 was laid on the harness jig arranged in the branching part of a wire harness. FIG. 4 is a perspective view of a state where a wire harness is arranged and branched on the harness jig and the first clamp shown in FIG. 3. It is a perspective view of the state which converged the 1st clamp with the wire harness shown in FIG. FIG. 6 is a perspective view of a state in which a second clamp is mounted on a first clamp column protruding from the center of a branching portion of the wire harness illustrated in FIG. 5. It is the perspective view of the state which cut | disconnected the upper part of the support | pillar of the 1st clamp which removed from the harness jig | tool shown in FIG. 6 and protruded from the 2nd clamp of the branch part. Description of the case of removing the first clamp column protruding from the second clamp of the branching part from the harness jig shown in FIG. 6 to an appropriate length and attaching it to the wire harness mounting hole of the vehicle body as an anchor part FIG. It is principal part sectional drawing of the state which attached the wire harness branch part shown in FIG. 8 to the wire harness attachment hole of a vehicle body via the anchor part. It is explanatory drawing of the branch part of the wire harness which branched and converged the main line side and branch line side of the wire harness with the conventional exclusive branch band clamp. It is explanatory drawing of the branch part of the wire harness which branched and converged the main line side and branch line side of the wire harness with the conventional both-ends clamp and tape. It is explanatory drawing of the branch part of the wire harness which branched and bound the main line side and branch line side of the wire harness with the conventional band clamp. It is explanatory drawing of the branch part of the wire harness which branched and bound the main line side and branch line side of the wire harness with the conventional cantilever plate clamp and the tape. It is explanatory drawing of the length of the wiring direction of the branch part by the clamp shown in FIG.10 and FIG.11. It is explanatory drawing of position shift with the branch center of the branch part by the clamp shown in FIG.12 and FIG.13, and the center of a clamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Branch band clamp 2, 3 Band 5 Both-end holding plate clamp 6 Tape 7 Hand clamp 8 Cantilever plate clamp 9 Tape 10 Wire harness 10a Main line (main line)
10b, 10c, 10d, 10e, 10f Branch line (branch line)
10g Branch part 11 Wire harness branch clamp 12 First clamp 13 Second clamp 13a Insertion hole 13b Open end 15 Substrate 16 Post 16a Tip 16b Base end 17 Locking part 17a Base 17b Outer peripheral edge (tip)
18 Locking Claw 21 Harness Jig 22 Mounting Base 23 Tape 25 Vehicle Body 26 Hole for Wire Harness Installation O Branch Center O 'Clamp Center

Claims (6)

A wire harness branch clamp for fixing a branch portion of a wire harness,
Having a first clamp and a second clamp;
The first clamp is
A substrate disposed below the branch part;
A support column that is suspended from the upper surface of the substrate and penetrates substantially the center of the branch portion of the wire harness;
The outer peripheral surface of the support column has a plurality of locking portions formed from the distal end side to the proximal end side, the diameter increasing in a tapered shape from the distal end side toward the proximal end side and elastically deformable,
The second clamp is a plate-like member having a through-hole through which the support column elastically deforms the locking portion, and is capable of locking the locking portion of the first clamp. Wire harness branch clamp characterized by.   The wire harness branch clamp according to claim 1, wherein the inner peripheral surface of the insertion hole of the second clamp has a locking claw for locking the locking portion of the first clamp. A wire harness branch structure in which the wire harness branch clamp according to claim 1 or 2 is attached to a branch portion of the wire harness,
The branch portion of the wire harness is formed so that the support of the first clamp penetrates substantially the center thereof,
The second clamp is inserted from the tip of the first clamp column protruding from the branch portion of the wire harness,
The wire harness branching structure, wherein a locking portion of the first clamp is fixed in a retaining state by a locking claw of the second clamp.   The wire harness branching structure according to claim 3, wherein a tip end side of the first clamp column protruding above the branching portion of the wire harness is cut and removed by a predetermined length.   The first clamp column protruding from above the second clamp is used as an anchor, and is fixed by being inserted into a wire harness mounting hole formed in the vehicle body. The wire harness branching structure according to claim 3 or 4.   The wire harness branching structure according to any one of claims 3 to 5, wherein the branching portion of the wire harness is wound with tape to maintain a branching state.

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