JP2007185057A - Wire harness clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire harness clamp capable of attaining use in both a round hole and an elongated hole, easy insertion into the elongated hole, and high stability after the insertion into the elongated hole. <P>SOLUTION: This wire harness clamp includes a band 12, a band lock portion 14, and an anchor portion 16. The anchor portion 16 is provided with a pair of shaft portions 20A, 20B formed at an interval corresponding to the width of the band 12 and a pair of elastic latching pieces 22A, 22B formed in such a manner as to be folded back from the ends of the pair of shaft portions to both sides. The band lock part 14 has a first band insertion hole 26 which penetrates straight from the band insertion hole to the opposite side, and a second band insertion hole 28 which penetrates into between the pair of shaft parts 20A, 20B by making a 90° turn from the band insertion hole. For the round hole, the band 12 is inserted into the first band insertion hole 26 to contact the ends of the pair of shaft portions 20A, 20B. For the elongated hole, the band 12 is inserted into the second band insertion hole 28 to be intervened between the pair of shaft portions 20A, 20B. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wire harness clamp used for attaching a wire harness to an automobile body or the like.

  When wiring the wire harness in the automobile, various wire harness clamps are usually used to attach the required part of the wire harness to the body or panel of the automobile. Among these clamps for wire harnesses, what is called the band type is the band that tightens the wire harness, the band lock part that is formed integrally with the base end of this band, and the opposite side of the surface of the band lock part on the wire harness side And an anchor portion integrally formed on the side surface. The anchor portion has a shaft portion protruding from the band lock portion, and a pair of elastic locking pieces formed so as to be folded back to the base side of the shaft portion while spreading from the tip of the shaft portion to both sides of the shaft portion. Yes. The elastic locking piece is configured such that a shoulder portion formed at the release end is hooked on the edge on the back side of the hole of the fixed substrate.

  When attaching the wire harness to the body, etc., with this wire harness clamp, when assembling the wire harness, wrap the band around the specified part of the wire harness, insert the band tip into the band lock, and tighten the wire harness. Secure the clamp to the wire harness. If the wire harness is routed in this state and the anchor portion is inserted into the hole formed in the body or the like, the wire harness can be attached to the body or the like.

  By the way, the hole formed in the body or the like includes a round hole that does not regulate the direction of the clamp (direction of the wire harness) and a long hole that regulates the direction of the clamp. For this reason, conventionally, a clamp for a round hole and a clamp for a long hole are prepared, and two types of clamps are properly used depending on the shape of the hole. However, this requires two types of fasteners, which is not only costly but also cumbersome to use.

  In order to solve this problem, Patent Literature 1 proposes a wire harness clamp that can be used for both round holes and long holes. In this clamp, the shoulder portion at the tip of the elastic locking piece of the anchor portion has two stages for a round hole and a long hole, and a positioning plate portion extending from the base portion of the shaft portion in the long diameter direction of the long hole is formed. Is.

JP-A-10-238659

  However, in the wire harness clamp disclosed in Patent Document 1, when the anchor portion is inserted into the elongated hole, the elastic locking pieces on both sides are directed in the minor axis direction of the elongated hole, and the positioning plate portion is aligned with the elongated hole. Inserting in the long-diameter direction and making the tip of the positioning plate abut the edge of the long-hole in the long-diameter direction, the insertion work into the long hole is troublesome unlike conventional clamps for long holes. . Further, if the wire harness clamp is tilted, the tip of the positioning plate part may be disengaged from the edge of the elongated hole, and the rotation of the clamp may not be restricted.

  The object of the present invention can be used for both round holes and long holes, and can be inserted into the long holes as easily as conventional clamps for long holes, and stability after being inserted into the long holes. It is also to provide a good wire harness clamp.

  In order to achieve this object, the present invention provides a wire harness having a band for fastening a wire harness, a band lock portion integrally formed at the base end of the band, and an anchor portion integrally formed on the band lock portion. In the clamp for use, the anchor portion is formed so as to be folded back while spreading from the tip of the pair of shaft portions to both sides, and a pair of elastically deformable shaft portions formed at intervals corresponding to the width of the band. The band lock portion is formed of a pair of elastic locking pieces, and the band lock portion is disconnected between the first band insertion hole that passes from the band insertion port to the opposite side and the direction from the band insertion port and is removed between the pair of shaft portions. And a second band insertion hole.

  The wire harness clamp of the present invention is preferably provided with a shaft portion coupling means for holding the tip portions of the pair of shaft portions in contact with each other.

  This clamp for wire harness can be used as a round hole clamp by inserting the band wound around the wire harness into the first band insertion hole of the band lock part and tightening it. If tightened, it can be used as a clamp for long holes. That is, in a state where the band is inserted into the first band insertion hole, the pair of shaft portions of the anchor portion can be elastically deformed. Therefore, if the pair of shaft portions are elastically deformed so that the tip portions are in contact with each other, Since the maximum outer surface dimension of the elastic locking piece can be reduced to fit the round hole, if the anchor portion is inserted into the round hole in this state, the elastic locking piece can be locked to the edge of the round hole. it can. In the state where the band is inserted through the second band insertion hole, the tip of the band coming out of the insertion hole enters between the pair of shaft portions of the anchor portion, and the pair of shaft portions approach each other. It will be in a state where it cannot be elastically deformed. As a result, the dimension between the maximum outer surfaces of the pair of elastic locking pieces is maintained in a state that matches the long diameter of the long hole.In this state, if the anchor portion is inserted into the long hole, the elastic locking piece is It can be locked to the edge in the major axis direction.

  Thus, the wire harness clamp of the present invention can be used for both round holes and long holes, and the insertion work into the long holes can be performed in exactly the same way as conventional long hole clamps. It is easy to insert into the long hole when wiring the harness. In addition, when used as a long hole, the band is interposed between the pair of shafts so that the distance between the pair of shafts is not reduced. There is no fear of pulling out, and the mounting stability is also good.

  Further, if a shaft coupling means for holding the tip portions of the pair of shaft portions in contact with each other is provided, when used for a round hole, the tip portions of the pair of shaft portions are previously moved by the shaft coupling means. Since it can be made in the contacted state, when routing a wire harness, the operation | work which inserts an anchor part into a round hole can be performed easily.

  FIG. 1 shows an embodiment of the present invention. In the figure, 10 is a clamp for a wire harness, 12 is a band for tightening the wire harness, 14 is a band lock portion that locks the inserted band 12 so that it cannot be pulled out, and 16 is a surface of the band lock portion 14 on the wire harness side. An anchor portion 18 projecting integrally on the opposite surface is an elastic umbrella portion that abuts against the periphery of the hole when the anchor portion 16 is inserted into a round hole or a long hole to ensure pull-out prevention. The elastic umbrella portion 18 may be omitted.

  The anchor portion 16 includes a pair of shaft portions 20A and 20B projecting from the band lock portion 14, and the shaft portions 20A and 20B while extending from the tips of the pair of shaft portions 20A and 20B to both sides of the shaft portions 20A and 20B. It is composed of a pair of elastic locking pieces 22A and 22B formed so as to be folded back to the base side of 20B. The pair of shaft portions 20A and 20B are formed at an interval corresponding to the width of the band 12, and can be elastically deformed in directions in which the tip portions approach and separate from each other. Also, shoulders 24 are formed at the open ends of the elastic locking pieces 22A and 22B, respectively, which are hooked to the edge on the back side of the hole when the elastic locking pieces 22A and 22B are inserted into round holes or long holes. The form of the elastic locking pieces 22A and 22B is the same as that of the conventional anchor portion.

  Further, the band lock portion 14 includes a first band insertion hole 26 that goes straight out from the band insertion port to the opposite side, and a first band insertion portion that changes 90 degrees from the band insertion port and moves between the pair of shaft portions 20A and 20B. A second band insertion hole 28 is formed. The first and second band insertion holes 26 and 28 are respectively provided with claw pieces 30 and 32 for preventing the inserted band 12 from being pulled out. The band 12 is formed with jagged edges (not shown) on which the claw pieces 30 and 32 are caught.

  FIG. 2 shows a case where the wire harness clamp 10 configured as shown in FIG. 1 is attached to the wire harness 34 and the anchor portion 16 is inserted and locked in a round hole 38 formed in the body 36 or the like of the automobile. . In this case, the band 12 wound around the wire harness 34 is inserted into the first band insertion hole 26 of the band lock portion 14 and tightened. After that, if the pair of shaft portions 20A and 20B of the anchor portion 16 are elastically deformed so that the tip portions are in contact with each other as shown in the drawing, the anchor portion 16 has a size that fits the round hole 38. If the anchor portion 16 is inserted into the round hole 38, the shoulder portion 24 of the elastic locking pieces 22 </ b> A and 22 </ b> B can be locked to the edge on the back side of the round hole 38.

  FIG. 3 shows a case in which the wire harness clamp 10 configured as shown in FIG. 1 is attached to the wire harness 34 and the anchor portion 16 is inserted and locked into the long hole 40 formed in the body 36 or the like of the automobile. Show. In this case, the band 12 wound around the wire harness 34 is inserted into the second band insertion hole 28 of the band lock portion 14 and tightened. Then, since the front end portion of the band 12 rises between the pair of shaft portions 20A and 20B, the pair of shaft portions 20A and 20B cannot be elastically deformed in a direction approaching each other. As a result, the anchor portion 16 is held in a size that matches the long diameter of the long hole 40. Therefore, if the anchor portion 16 is inserted into the long hole 40, the shoulder portions 24 of the elastic locking pieces 22A and 22B are connected to the back side of the long hole 40. Can be locked to the edge in the major axis direction.

  Next, FIG. 4 and FIG. 5 show examples in which shaft coupling means for holding the tip portions of the pair of shaft portions 20A and 20B in contact with each other is provided. In the example of FIG. 4, as shown in FIGS. 4A and 4B, claw holding pieces 42 are provided on both sides of one shaft portion 20 </ b> B. By holding the other shaft portion 20A as in (D), the tip portions of the pair of shaft portions 20A and 20B are held in contact with each other.

  5A and 5B, a headed protrusion 44 is provided on the inner surface of one shaft portion 20B, and the head of the headed protrusion 44 is provided on the other shaft portion 20A. A small hole 46 having a slightly smaller inner diameter is provided, and the headed protrusion 44 is pushed into the small hole 46 until the head penetrates the small hole 46 as shown in FIGS. The tip portions of the shaft portions 20A and 20B are held in contact with each other.

  In this way, if a shaft coupling means for holding the tip portions of the pair of shaft sections 20A and 20B in contact is provided, when the clamp 10 is used for a round hole, the shaft coupling means is used in advance. Since the tip portions of the pair of shaft portions 20A and 20B can be kept in contact with each other, when the wire harness is routed, the operation of inserting the anchor portion 16 into the round hole can be easily performed.

BRIEF DESCRIPTION OF THE DRAWINGS One Embodiment of the clamp for wire harnesses which concerns on this invention is shown, (A) is a partially cutaway front view, (B) is BB sectional drawing of (A), (C) is a top view. The state which attaches the clamp for wire harnesses of FIG. 1 to a round hole, (A) is a partially cutaway front view, (B) is a cross-sectional view, (C) is a plan view of a round hole formed in a body or the like. The state which attaches the clamp for wire harnesses of FIG. 1 to a long hole, (A) is a partially cutaway front view, (B) is a cross-sectional view, (C) is a plan view of a long hole formed in a body or the like. 1 shows an example of a case where shaft portion coupling means for bringing the tip ends of a pair of shaft portions into contact with the wire harness clamp of FIG. 1, (A) is a front view of a state where the tip portions of the pair of shaft portions are not contacted, (B) is a cross-sectional view of the portion provided with the shaft portion coupling means of (A), (C) is a front view of the state where the tip portions of the pair of shaft portions are in contact, and (D) is the shaft portion of (C). Sectional drawing of the part which provided the coupling means. The other example at the time of providing the axial part coupling | bonding means which contacts the front-end | tip part of a pair of axial part to the clamp for wire harnesses of FIG. 1 is shown, (A) is the front of the state which does not contact the front-end | tip part of a pair of axial part (B) is a cross-sectional view of a portion provided with the shaft coupling means of (A), (C) is a front view of the pair of shaft portions in contact with each other, and (D) is a diagram of (C). Sectional drawing of the part which provided the axial part coupling means.

Explanation of symbols

10: Wire harness clamp 12: Band 14: Band lock part 16: Anchor part 20A, 20B: Shaft part 22A, 22B: Elastic locking piece 26: First band insertion hole 28: Second band insertion hole 30, 32: Pull-out preventing claw piece 34: Wire harness 36: Auto body 38: Round hole 40: Long hole 42: Holding piece with claw (shaft portion coupling means)
44: Headed projection (shaft coupling means)
46: Small hole (shaft coupling means)

Claims (2)

In a wire harness clamp having a band for tightening a wire harness, a band lock portion formed integrally with the base end of the band, and an anchor portion formed integrally with the band lock portion,
The anchor portion includes a pair of elastically deformable shaft portions formed at intervals corresponding to the width of the band, and a pair of shaft portions extending from both ends of the pair of shaft portions to both sides of the pair of shaft portions. It consists of a pair of elastic locking pieces formed so as to be folded back to the base side, and the band lock part changes the direction from the band insertion port, the first band insertion hole that goes out from the band insertion port to the opposite side A wire harness clamp, comprising: a second band insertion hole extending between the pair of shaft portions.   The clamp for wire harnesses according to claim 1, further comprising a shaft coupling means for holding the tip portions of the pair of shaft portions in contact with each other.

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