JP2014180174A - Wire harness clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness clamp of a novel structure which can be fastened to a wire harness so as to be freely unfastened and is capable of surely and easily locking an excessive portion of a winding band to the winding band which is wound around the wire harness.SOLUTION: In a wire harness clamp 10, a winding band 20 to be wound around a wire harness 18 extends from one end portion 16 of a base part 14 where a clamp portion 12 is protrusively provided. In the base part 14, a band insert hole 32 is provided which penetrates the base part 14 in a direction of extension of the winding band 20 and does not include a lock piece. In the winding band 20, on the other hand, a plurality of lock holes 26 are disposed while being spaced apart from each other in the direction of extension and on a surface 22 of the winding band 20, a lock protrusion 24 is provided protrusively.

Description

  The present invention relates to a wire harness clamp that is used to hold a wire harness by attaching it to the outer periphery of the wire harness and fixing the protruding clip portion to an attachment portion of a vehicle body panel or an in-vehicle device. is there.

  2. Description of the Related Art Conventionally, a wire harness clamp is used in an automobile or the like in order to fix a wired wire harness to a mounting portion of a vehicle body panel or an in-vehicle device. For example, as described in Japanese Patent Laid-Open No. 8-275346 (Patent Document 1), the wire harness clamp has a base portion integrally formed at one end of a winding band wound around the wire harness, At the base portion, a clip portion that is fitted into an attachment portion such as a fitting hole provided in the vehicle body panel or the like and is locked and fixed is projected. In addition, a serrated locking groove is formed on one surface of the winding band, while a band insertion hole through which the winding band is inserted is formed in the base portion, and inside the band insertion hole. Is provided with a locking piece. Then, the winding band is inserted into the band insertion hole from the other end, and the locking piece is locked in the locking groove of the winding band, thereby preventing the winding band from being pulled out from the band insertion hole. Thus, the wire harness can be tightened so as not to be loosened. Thereby, the clip part of the clamp for wire harnesses can be fixedly provided at a predetermined position of the wire harness.

  Further, in Patent Document 1, a winding band is provided with a locking set mechanism for a surplus portion including a plurality of locking holes and a locking protrusion protruding from the back surface of the winding band. Thus, after the wire harness is tightened so as not to be loosened, the winding band in which the locking protrusion provided at the leading end portion of the winding band of the excessive portion of the winding band protruding from the band insertion hole is wound around the wire harness. By fitting into any one of the locking holes, the surplus portion can be overlapped and fixed to the portion of the winding band wound around the wire harness.

  However, the wire harness clamp described in Patent Document 1 is fastened around the wire harness so as not to be loosened. Therefore, when the wire harness is fixed to a mounting portion provided on a vehicle body panel or the like, the wire harness clamp is fixed. The position of the wire harness cannot be changed, and due to the variation in the length of the wire harness, there is a possibility that the adjustment when the position of the mounting portion and the wire harness clamp does not match cannot be sufficiently performed. On the other hand, it is also conceivable to tighten the wire harness clamp loosely with respect to the wire harness so as to easily cope with variations in the length of the wire harness. However, the wire harness clamp may move and interfere with other members during transportation of the wire harness, which is not a desirable measure.

  In addition, with regard to the locking setting mechanism of the surplus portion consisting of the locking projection and the locking hole, when the locking projection is fitted into the locking hole of the winding band wound around the wire harness, It may be difficult for the wire harness to interfere and completely fit into the locking hole. Therefore, there is room for improvement in the locking stability and workability of the surplus portion.

JP-A-8-275346

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that the wire harness can be loosely tightened and the surplus portion of the winding band is wound around the wire harness. An object of the present invention is to provide a clamp for a wire harness having a novel structure that can be reliably and easily locked to a winding band.

  Hereinafter, embodiments of the present invention made to solve the above-described problems will be described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

  A first aspect of the present invention is the wire harness clamp in which a winding band wound around the wire harness is extended from one end portion of the base portion on which the clip portion protrudes. A band insertion hole that penetrates in the extending direction of the winding band and does not have a locking piece is provided, while the winding band has a plurality of locking holes spaced apart from each other in the extending direction. It is arranged, and a locking projection protrudes from the surface of the winding band.

  According to this aspect, since the locking piece is not provided in the band insertion hole, it is advantageously avoided that the winding band inserted through the band insertion hole is locked to the locking piece in an unreleasable manner. Yes. Further, the winding band is provided with a plurality of locking holes provided in the winding band and spaced apart from each other in the extending direction of the winding band. Then, after winding the winding band around the wire harness, the leading end portion is inserted into the band insertion hole, and the winding band is protruded from the band insertion hole until the winding band is fastened to the wire harness without a gap. Next, the wire harness is inserted into the wire harness by fitting the locking protrusion protruding on the surface of the winding band into one of the locking holes provided in the protruding portion of the winding band protruding from the band insertion hole. The clamp can be tightened and fixed in a relaxed state. Therefore, in the wire harness clamp according to this aspect, when the wire harness is fixed to the attachment portion of the vehicle body panel or the like, the wire harness clamp and the attachment portion may be Even when the positions do not match, by releasing the engagement between the locking projections and the locking holes, the wire harness clamp can be easily loosened to change the fixing position, and can be tightened to the optimum position. Therefore, the variation in the length of the wire harness can be adjusted well.

  The locking projection is provided on the surface of the winding band. As a result, the locking protrusion can be securely locked through the locking hole of the winding band that is overlapped from the outside of the locking protrusion, so that the locking protrusion and the wire harness interfere with each other as in the conventional case. Thus, the problem that the locking projection cannot be fitted into the locking hole is advantageously prevented.

  According to a second aspect of the present invention, there is provided the first aspect according to the first aspect, wherein a plurality of the locking protrusions are provided, and the locking hole is N times the locking protrusion (N is an arbitrary positive number). And a plurality of combinations of the one locking projection and the N locking holes in the extending direction, and the adjacent locking projection and the locking hole. The adjacent locking holes are arranged with a certain gap therebetween.

  According to this aspect, since the plurality of locking protrusions are provided, the fastening force of the wire harness clamp to the wire harness can be improved by fitting the plurality of engaging protrusions with the locking holes. In addition, when the fixed gap is reduced or when the locking hole is provided more than twice the locking projection, the winding length (diameter) of the winding band against the variation in the diameter of the wire harness The adjustment accuracy can be further advantageously improved.

  A third aspect of the present invention is the one described in the first or second aspect, wherein a plurality of combinations of one locking protrusion and one locking hole are provided, and the locking protrusion And the locking holes are alternately arranged with a certain gap in the extending direction.

  According to this aspect, since a plurality of combinations of one locking projection and one locking hole are provided, the fitting portion between the locking projection and the locking hole can be increased, and the wire to the wire harness can be increased. The fastening force of the harness clamp can be further improved.

  According to the clamp for wire harness of the present invention, since the locking piece is not provided in the band insertion hole, the wound band inserted through the band insertion hole may be locked to the locking piece so as not to be released. It is advantageously avoided. Furthermore, in the winding band, a plurality of locking holes provided in the winding band are arranged apart from each other in the extending direction of the winding band, By fitting the locking protrusion protruding on the surface of the winding band, the wire harness clamp can be tightened and fixed to the wire harness in a relaxed state. As a result, even when the position of the wire harness clamp and the mounting portion do not match, by releasing the engagement of the locking projection and the locking hole, the wire harness clamp can be easily loosened and the fixing position can be changed, It can be tightened to the optimum position.

The perspective view which shows the clamp for wire harnesses as 1st embodiment of this invention. The perspective view for demonstrating a mode that the clamp for wire harnesses shown in FIG. 1 is fastened and fixed with respect to a wire harness. The III-III cross-sectional enlarged view of FIG. The side view which shows the wiring structure of the wire harness using the clamp for wire harnesses shown in FIG. 1 ((a) Before position correction, (b) After position correction). The perspective view which shows the clamp for wire harnesses as 2nd embodiment of this invention. The perspective view for demonstrating a mode that the clamp for wire harnesses shown in FIG. 5 is fastened and fixed with respect to a wire harness.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, the clamp 10 for wire harnesses as 1st embodiment of this invention is shown in FIGS. 1-3. As shown in FIG. 1, the wire harness clamp 10 is extended from a base portion 14 from which a clip portion 12 is protruded and one end portion 16 of the base portion 14 so as to extend to a wire harness 18 (FIGS. 2 to 4). And a winding band 20 wound around (see). As is well known, the wire harness clamp 10 is integrally formed of a synthetic resin material, and the winding band 20 can be bent and deformed.

  As shown in FIG. 1, the winding band 20 has an elongated flat plate shape with a rectangular cross section. The surface 22 of the winding band 20 is provided with a plurality of combinations 27 (seven sets in this embodiment) each having one locking projection 24 and one locking hole 26, while The blind holes 26 are alternately arranged from the one end portion 16 of the base portion 14 in the extending direction of the winding band 20 with a certain gap therebetween. The locking hole 26 is a circular through-hole that penetrates in the thickness direction of the winding band 20, while the locking protrusion 24 protrudes vertically from the surface 22 of the winding band 20 and has a cylindrical shape. The base end portion 28 and the hemispherical distal end portion 30 have a so-called mushroom shape. Note that the diameter: R1 of the hemisphere of the distal end portion 30 of the locking protrusion 24 is slightly larger than the diameter: R2 of the locking hole 26.

  On the other hand, as shown in FIG. 1, the base 14 of the wire harness clamp 10 is provided with a band insertion hole 32 that penetrates in the extending direction of the winding band 20 and does not have a locking piece. . Further, on the upper surface 34 of the base portion 14, a clip portion 12 for fixing the wire harness 18 (see FIGS. 2 to 4) to a vehicle body panel, an in-vehicle device or the like protrudes. The clip portion 12 includes a disk-shaped dish portion 36 provided at the base end portion and a locking head 38 provided at the distal end portion. The locking head 38 includes a π-shaped locking column 40 in a front view and a pair of locking wings 42, 42 provided at the upper end of the locking column 40 and projecting in an arrow shape. . Here, the plate portion 36 is used for contact with a mounting portion 48 described later, while the pair of locking wings 42 and 42 are inserted into the clip holding holes 50 of the mounting portion 48 to prevent the plate portion 36 from coming off. Is.

  Next, as shown in FIGS. 2 and 3, the wire harness clamp 10 having the above structure is fastened and fixed to the wire harness 18. More specifically, after winding the winding band 20 around the wire harness 18, the leading end portion is inserted into the band insertion hole 32 until the winding band 20 is fastened to the wire harness 18 without a gap. The attached band 20 is protruded from the band insertion hole 32. Next, the locking projections 24, 24 protruding from the surface 22 of the winding band 20 are fitted into the locking holes 26, 26 provided in the protruding portion 44 of the winding band 20 protruding from the band insertion hole 32. That is, by applying a sufficient force to push the tip portions 30 of the locking projections 24, 24 into the locking holes 26, 26, the diameter of the hemispherical tip portion 30 of the locking projections 24, 24: R1 The holes 26, 26 are elastically deformed until the diameter becomes equal to or less than R2, and can be inserted. In addition, after insertion, the wire harness clamp 10 is fastened and fixed to the wire harness 18 by elastically restoring and engaging the tip portions 30 of the locking projections 24 and 24 with the locking holes 26 and 26. You will be able to do it. Similarly, the engagement of the locking protrusions 24 and 24 with respect to the locking holes 26 and 26 can be released by applying a sufficient force outwardly to the protruding portion 44 of the winding band 20. Moreover, in this embodiment, since the locking piece is not provided in the band insertion hole 32, the winding band 20 inserted through the band insertion hole 32 may be locked to the locking piece so as not to be released. It is advantageously avoided. From the above, in the wire harness clamp 10 of the present embodiment, the wire harness clamp 10 can be fastened and fixed to the wire harness 18 in a relaxable state.

  Further, in the present embodiment, substantially the same number of the locking projections 24 and the locking holes 26 are provided, and alternately arranged with a certain gap in the extending direction of the winding band 20. Yes. Thereby, the locking projections 24 can be fitted into all the locking holes 26 provided in the protruding portion 44 of the wound band 20 protruding from the band insertion hole 32. As a result, compared with the conventional case where only one locking hole is provided, the fitting portion between the locking protrusion 24 and the locking hole 26 can be increased, and the wire to the wire harness 18 can be increased. The fastening force of the harness clamp 10 can be further improved.

  Further, as shown in FIGS. 2 and 3, the locking protrusion 24 is provided on the surface 22 of the winding band 20. As a result, the locking protrusion 24 is passed through the locking hole 26 provided in the protruding portion 44 of the winding band 20, which is overlapped from the outside of the locking protrusion 24, and can be reliably locked. Therefore, the conventional problem that the locking projection and the wire harness interfere with each other and the locking projection cannot be fitted into the locking hole is advantageously prevented.

  Next, the case where the wire harness 18 around which a plurality of wire harness clamps 10 are fastened is fixed to an attachment portion 48 provided on a vehicle body 46 such as a vehicle body panel or an in-vehicle device will be described with reference to FIG. . The wire harness 18 is attached to the vehicle body 46 by fitting a locking head 38 provided at the tip end of the clip portion 12 of the wire harness clamp 10 into a clip holding hole 50 penetrating the attachment portion 48. Is done. At this time, the pair of locking wings 42, 42 provided on the locking head 38 is prevented from coming off from the mounting portion 48, and the outside of the plate portion 36 provided at the proximal end portion of the clip portion 12. The peripheral edge abuts against the mounting portion 48, advantageously realizing that the wire harness clamp 10, that is, the wire harness 18, is stably fixed to the vehicle body 46.

  When the wire harness 18 is fixed to the mounting portion 48 provided on the vehicle body 46, the wire harness clamp 10 and the mounting portion 48 may not be aligned due to variations in the length of the wire harness 18. For example, in the example shown in FIG. 4A, the right-end wire harness clamp 10 is difficult to reach the attachment portion 48, and conversely, the left-end wire harness clamp 10 is attached at a position beyond the attachment portion 48. The extra length of the wire harness 18 is increased. Even in such a case, in the present embodiment, by releasing the engagement between the locking protrusion 24 and the locking hole 26, the wire harness clamp 10 can be easily loosened and the fixing position can be changed. As shown in (b), it can be retightened to the optimum position. Therefore, the length variation of the wire harness 18 can be adjusted well.

  Next, FIGS. 5 and 6 show a wire harness clamp 52 as a second embodiment of the present invention. As shown in FIG. 5, in this embodiment, the wire harness clamp 52 is provided with a plurality of locking protrusions 24 (five in this embodiment) and the locking holes 26 are locked. The projection 24 is provided N times (N is an arbitrary positive integer, twice in this embodiment). Then, there are a plurality of combinations 54 of one locking projection 24 and N locking holes 26 (N is an arbitrary positive integer, two in this embodiment) in the extending direction of the winding band 20. Groups (5 groups in this embodiment) are arranged. Further, the adjacent locking projections 24, the locking holes 26, and the adjacent locking holes 26 are arranged with a certain gap therebetween.

  As shown in FIG. 6, when the wire harness clamp 52 is fastened to the wire harness 18 and fixed, the three pieces provided on the protruding portion 44 of the winding band 20 protruding from the band insertion hole 32. Two locking projections 24 protruding from the surface 22 of the winding band 20 are fitted into two of the locking holes 26. As a result, the wire harness clamp 10 can be fastened and fixed to the wire harness 18, and the wire harness clamp 10 can be loosened relative to the wire harness 18 as in the previous embodiment. It becomes possible to tighten and fix with.

  Thus, in the present embodiment, since a plurality of locking projections 24 are provided as in the previous embodiment, the fitting of the plurality of locking projections 24 and the locking holes 26 allows the wire harness 18 to be fitted. The fastening force of the wire harness clamp 52 can be improved. Further, since the locking hole 26 is provided twice as large as the locking protrusion 24, the adjustment accuracy of the winding length (diameter) of the winding band 20 can be improved with respect to the variation in the diameter of the wire harness 18. This can be achieved more advantageously.

  As mentioned above, although embodiment of this invention was explained in full detail, this is an illustration to the last, Comprising: This invention is not limited at all by the concrete description in this embodiment.

  For example, the shapes of the locking protrusions 24 and the locking holes 26 are not limited to the illustrated embodiment, and the wire harness clamps 10, 50 can be fastened and fixed to the wire harness 18 in a relaxed state. Any shape can be selected. For example, as the shape of the distal end portion 30 of the locking projection 24, a conical shape, a truncated cone shape, a pyramid shape, or the like is conceivable in addition to the hemispherical shape of the illustrated embodiment. Other than the circular shape of the embodiment, an elliptical shape, a star shape, or the like is conceivable.

  In addition, in the illustrated embodiment, a plurality of locking protrusions 24 are provided, but the present invention is not limited to this, and the number of locking protrusions 24 may be one. In this case, the plurality of locking holes 26 need only be spaced apart from each other in the extending direction of the winding band 20 and may not be spaced apart from each other. Also good. In this case, it is desirable that the locking protrusion 24 is provided at the base end portion with respect to the extending direction of the winding band 20. As a result, the locking protrusion 24 can be securely passed through the locking hole 26 provided in the protruding portion 44 of the winding band 20 and locked.

  In the illustrated embodiment, the locking protrusions 24 and the locking holes 26 other than the combinations 27 and 54 are not provided, but may be provided. For example, in the embodiment shown in FIG. 1, one locking hole 26 provided in the extended end portion is eliminated, and six combinations 27 having one locking protrusion 24 and one locking hole 26 are provided. In addition, the number of the locking protrusions 24 may be one. At this time, it is desirable to shorten the winding band 20 accordingly.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements and the like are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

10, 52: Clamp for wire harness, 12: Clip part, 14: Base part, 16: One end part, 18: Wire harness, 20: Wound band, 22: Surface, 24: Locking protrusion, 26: Locking Hole, 27, 54: Combination, 32: Band insertion hole

Claims (3)

In the wire harness clamp in which the winding band to be wound around the wire harness is extended from one end portion of the base portion where the clip portion protrudes,
While the base is provided with a band insertion hole that penetrates in the extending direction of the winding band and does not have a locking piece,
The winding band is provided with a plurality of locking holes spaced apart from each other in the extending direction, and a locking projection is provided on the surface of the winding band. Wire harness clamp. A plurality of the locking protrusions are provided, and the locking hole is provided N times the locking protrusion (N is an arbitrary positive integer),
A plurality of combinations of one locking projection and N locking holes are arranged in the extending direction, and the adjacent locking projection, the locking hole and the adjacent locking hole, The wire harness clamp according to claim 1, wherein is arranged with a certain gap therebetween.   A plurality of combinations of one locking protrusion and one locking hole are provided, and the locking protrusions and the locking holes are alternately arranged with a certain gap in the extending direction. The clamp for wire harnesses of Claim 1 or 2 currently provided.

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