JP2016146697A - T-shaped clamp for wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a T-shaped clamp for a wiring harness having a new structure capable of stably holding the wiring harness by a placement plate part.SOLUTION: Disclosed is a T-shaped clamp 10 which includes: a placement plate part 14 which is placed on a wiring harness 12 and bound and fixed thereto; and an off-set plate part 16 which protrudes to the lateral of the placement plate part 14 and in which a clip part 32 is protruded at a protrusion end. The placement plate part 14 is made to include: a plate part body 18 which extends in the longitudinal direction of the wiring harness 12 and makes the off-set plate part 16 protrude from one of both side edges; a guide wall part 20 which protrudes from the plate part body 18, which extends in the longitudinal direction of the wiring harness 12 and which is abutted and held on the outer peripheral surface of the wiring harness 12 by a portion different from the plate part body 18.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a T-shaped clamp for a wire harness that is used to fix a clip portion that is attached to the outer periphery of a wire harness and protrudes at a position offset from the wire harness to an attachment portion of a vehicle body panel or an in-vehicle device. It is.

  Conventionally, when there is no vehicle-side fixing portion in the immediate vicinity of a wire harness routed in a vehicle such as an automobile, in order to fix the wire harness to the vehicle-side fixing portion provided at a position offset from the wire harness A T-clamp for a wire harness is used. Such a T-shaped clamp for a wire harness is placed on a wire harness and bound and fixed with a binding tape or the like as described in FIG. 2 of Japanese Patent Laid-Open No. 11-201327 (Patent Document 1), for example. And an offset plate portion that protrudes to the side of the placement plate portion and has a clip portion projecting from the protruding end portion. Then, the wire harness is fixed to the vehicle side by fitting the clip portion to the vehicle-side fixing portion.

  By the way, in the T-shaped clamp for the wire harness, the wire harness is supported in a cantilevered manner at a position separated from the fixed portion on the vehicle side by the length of the substantially offset plate portion. As a result, the mounting plate portion may be displaced with respect to the fixed portion on the vehicle side. However, in the conventional T-clamp for wire harness, the T-shaped clamp for wire harness is fixed to the wire harness by placing the flat plate-shaped mounting plate portion on the arcuate outer peripheral surface of the wire harness and fixing with tape. Therefore, the mounting plate portion is in contact with the wire harness only at one point in the circumferential direction of the outer peripheral surface of the wire harness, that is, in a very narrow range. For this reason, the wire harness cannot be reliably held by the mounting plate portion, and the mounting plate portion is displaced due to vibration, and the wire harness is inclined with respect to the mounting plate portion. There was a risk of interference.

  Therefore, as shown in FIG. 2 of Japanese Patent Application Laid-Open No. 2010-233281 (Patent Document 2), the mounting plate portion of the T-clamp for wire harness and the wire harness are firmly bound and fixed by using a binding band. A structure has been proposed. According to such a fixing structure, it is possible to easily and firmly fix the mounting plate portion and the wire harness as compared with the fixing structure using the binding tape.

  However, it is not solved that the placing plate portion is in contact with the wire harness only at one point in the circumferential direction of the arcuate outer peripheral surface of the wire harness, that is, within a very narrow range. Therefore, similarly to the conventional structure, the problem that the wire harness is inclined with respect to the mounting plate due to the displacement of the mounting plate due to vehicle vibration, and as a result, the wire harness interferes with other members is solved. Not.

Japanese Patent Laid-Open No. 11-201327 JP 2010-233281 A

  The present invention has been made in the background of the above-mentioned circumstances, and a solution to the problem is a T-clamp for a wire harness having a novel structure that can stably hold the wire harness at the mounting plate portion. Is to provide.

  A first aspect of the present invention is a mounting plate portion that is placed on a wire harness and bound and fixed, and an offset plate portion that protrudes to the side of the mounting plate portion and has a clip portion protruding from the protruding end portion. A wire harness T-shaped clamp, wherein the mounting plate portion extends in the longitudinal direction of the wire harness and the offset plate portion protrudes from one of both side edge portions; And a guide wall portion that protrudes from the plate body and extends in the longitudinal direction of the wire harness and is held in contact with the outer peripheral surface of the wire harness at a portion different from the plate body. .

  According to this aspect, the placing plate portion projects from the plate portion main body and extends in the longitudinal direction of the wire harness and is held in contact with the outer peripheral surface of the wire harness at a portion different from the plate portion main body. Includes guide walls. As a result, when the placement plate portion is placed along the wire harness, the plate portion main body and the guide wall portion are continuously arranged in the longitudinal direction on the outer peripheral surface of the wire harness at two places different in the circumferential direction of the wire harness. Abutted. In such a state, the T-shaped clamp for the wire harness is bound and fixed to the wire harness with a binding tape or the like, so that the mounting plate portion is wide in the circumferential direction of the outer peripheral surface of the wire harness with respect to the longitudinal direction of the wire harness. Thus, positioning can be surely performed. Therefore, even if the mounting plate portion is displaced with respect to the fixed portion on the vehicle side due to vibration or the like during driving of the automobile, it is advantageous that the mounting plate portion is inclined with respect to the wire harness. Can be prevented. Further, when the plate body is placed on the wire harness, the tape winding operation can be performed after the wire harness is extended and positioned along the guide wall portion. As a result, since the longitudinal direction of the mounting plate portion can be reliably aligned with the longitudinal direction of the wire harness, the clip portion can also be disposed at a predetermined position.

  According to a second aspect of the present invention, in the one described in the first aspect, the guide wall portion has an arc cross-sectional shape smaller than ¼ of the circumference from at least one of the both side end portions of the plate portion main body. It is something that is projecting.

  According to this aspect, since the wire harness has a generally circular cross section, the contact area of the guide wall portion with respect to the outer peripheral surface of the wire harness can be increased by making the guide wall portion have an arc cross-sectional shape. it can. Thereby, a wire harness can be hold | maintained more stably by the mounting board part. In addition, since the guide wall portion protrudes with an arc cross-sectional shape that is smaller than ¼ of the circumference, the guide wall portion can be advantageously brought into contact with the outer peripheral surface of the wire harness having various diameters. The versatility can be improved. It should be noted that a wire having a wider range of diameters when the guide wall is provided only on one side edge of the plate body than when the guide wall is provided on both side edges of the plate body. Since the harness can be held, it can be said that it is more versatile.

  A third aspect of the present invention is the one described in the first or second aspect, wherein the guide wall portion is provided on the side edge portion on the clip portion side of the plate portion main body. is there.

  According to this aspect, since the guide wall portion is provided on the side edge portion on the clip portion side of the plate portion main body, the wire harness is mainly used even when holding a large-diameter wire harness. It will protrude to the opposite side to the clip part. Therefore, even if the T-shaped clamp for the wire harness of this aspect is attached to a large-diameter wire harness, the separation distance from the wire harness and the vehicle-side fixing portion, that is, the offset length can be kept substantially constant, Interference between other members in the vicinity of the vehicle-side fixed portion and the wire harness can be reliably prevented.

  According to the present invention, the placing plate portion includes the plate portion main body and the guide wall portion that is held in contact with the outer peripheral surface of the wire harness at a portion different from the plate portion main body. Thereby, when the placement plate portion is placed along the wire harness, the plate portion main body and the guide wall portion are brought into contact with the outer peripheral surface of the wire harness at two different locations in the circumferential direction of the wire harness. The mounting plate portion can be reliably positioned and maintained in a wide range in the circumferential direction of the outer peripheral surface of the wire harness. Therefore, even if the mounting plate portion is displaced with respect to the fixed portion on the vehicle side due to vibration or the like during driving of the automobile, it is advantageous that the mounting plate portion is inclined with respect to the wire harness. Can be prevented. In addition, when the plate body is placed on the wire harness, the wire harness can be extended and positioned along the guide wall, and then the tape winding operation can be performed. The longitudinal direction of the mounting plate portion can be matched, and the clip portion can also be arranged at a predetermined position.

The perspective view which shows the T-shaped clamp for wire harnesses as 1st embodiment of this invention. The perspective view which shows the state which bound and fixed the wire harness to this embodiment. The front view of FIG. It is a front view which shows the T-shaped clamp for wire harnesses as 2nd embodiment of this invention, Comprising: The figure corresponded in FIG. It is a front view which shows the T-shaped clamp for wire harnesses as 3rd embodiment of this invention, Comprising: The figure corresponded in FIG.

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

  First, the T-clamp 10 for wire harnesses as 1st embodiment of this invention is shown in FIGS. 1-3. The wire harness T-shaped clamp 10 is substantially T-shaped in a plan view, and is placed on the wire harness 12 to be bound and fixed, and the wire harness 12 is offset from the wire harness 12. It includes an offset plate portion 16 for fixing to a vehicle-side fixing portion (not shown) provided at a position. The wire harness T-shaped clamp 10 is integrally formed by injection molding or the like with synthetic resin such as polypropylene (PP) or polyamide (PA). In the following description, “upper” means the upper side in FIG. 3, and “lower” means the lower side in FIG.

  As shown in FIG. 1, the mounting plate portion 14 of the wire harness T-shaped clamp 10 includes a plate portion main body 18 and a guide wall portion 20. As shown in FIGS. 1 and 2, the plate portion main body 18 has a flat plate shape extending in a substantially strip shape in the longitudinal direction of the wire harness 12 along the wire harness 12, and the upper surface 22 is formed on the wire harness 12. It is set as the mounting surface to be mounted. Further, a pair of tape retaining protrusions 26, 26 projecting outward in the width direction are provided at both longitudinal ends of both side edges extending in the longitudinal direction of the plate body 18. On the other hand, the guide wall portion 20 protrudes in a substantially arc cross-sectional shape outwardly and obliquely upward from one side edge portion in the width direction of the upper surface 22 of the plate body 18, that is, a side edge portion on the clip portion 32 side described later. At the same time, the plate portion main body 18 is configured to extend over substantially the entire length in the longitudinal direction. Here, it is desirable that the inner surface 28 of the guide wall 20 is set to be smaller than a quadrant when viewed from the front. More specifically, as shown in FIG. 3, the projection length L from the plate body 18 of the inner surface 28 of the guide wall 20 is calculated from the radius of curvature r of the inner surface 28 of the guide wall 20. Circumference to be performed: It is desirable to set it to be smaller than 1/4 of 2πr, and in this embodiment, it is set to approximately 1/5 of the circumference. In addition, in order to understand easily, in FIG. 3, the wire harnesses 12 and 12a are described with the virtual line.

  In addition, as shown in FIGS. 1 and 2, the longitudinally central portion of one side edge portion extending in the longitudinal direction of the plate body 18 is orthogonal to the longitudinal direction of the plate body 18 and the plate portion. A substantially rectangular flat plate-shaped offset plate portion 16 is projected from the same horizontal plane as the main body 18. A clip portion 32 that protrudes downward is provided on the lower surface 30 of the protruding end portion of the offset plate portion 16. The clip part 32 includes a disk-shaped dish part 34 provided at the protruding base end part and a locking head 36 provided at the protruding tip part. The locking head 36 includes a substantially prismatic locking column 38 and a pair of locking wings 40, 40 provided at the tip of the locking column 38 and projecting in an arrow shape. Here, the plate portion 34 is used for contact with a vehicle side such as a vehicle body panel or an in-vehicle device (not shown), while the pair of locking wings 40, 40 are inserted into a fixing portion on the vehicle side and pulled out. Used to make a stop.

  Next, the wire harness T-shaped clamp 10 having the above-described structure is bound and fixed to the wire harness 12 as shown in FIG. More specifically, first, after positioning so that the outer peripheral surface of the wire harness 12 contacts the upper surface 22 of the plate portion main body 18 and the inner surface 28 of the guide wall portion 20, the wire harness 12 is used from below the wire harness 12. The mounting plate portion 14 of the T-shaped clamp 10 is mounted on the wire harness 12. As a result, as shown in FIG. 3, the mounting plate portion 14 is brought into contact with the outer circumferential surface of the wire harness 12 continuously in the longitudinal direction at two different locations in the circumferential direction of the outer circumferential surface of the wire harness 12. The That is, the mounting plate portion 14 is brought into contact with the outer peripheral surface of the wire harness 12 at the upper end 22 of the plate portion main body 18 and the protruding end portion 44 of the inner surface 28 of the guide wall portion 20. Subsequently, the mounting plate portion 14 is bound and fixed to the wire harness 12 by a binding tape 42 at both longitudinal ends of the mounting plate portion 14. In this manner, the wire harness T-shaped clamp 10 fixed to the wire harness 12 is prepared.

  According to the wire harness T-shaped clamp 10 configured as described above, when the mounting plate portion 14 of the wire harness T-shaped clamp 10 is mounted on the wire harness 12, At the protruding end portion 44 of the inner surface 28 of the guide wall portion 20, the mounting plate portion 14 is continuously in contact with the outer peripheral surface of the wire harness 12 in the longitudinal direction. Therefore, in this state, the mounting plate portion 14 is bound and fixed to the wire harness 12 by the binding tape 42, so that the mounting plate portion 14 is placed on the outer circumferential surface of the wire harness 12 with respect to the longitudinal direction of the wire harness 12. Positioning and holding can be stably performed over a wide range in the circumferential direction. Thereby, even if the mounting plate part 14 is displaced with respect to the fixed part on the vehicle side due to vibration or the like during traveling of the automobile, a problem that the mounting plate part 14 is inclined with respect to the wire harness 12 occurs. Can be advantageously prevented. Further, since the tape winding operation can be performed in a state where the wire harness 12 is extended and positioned along the guide wall portion 20, the longitudinal direction of the wire harness 12 and the mounting plate portion 14 can be surely matched. The clip portion 32 can also be disposed at a predetermined position offset from the wire harness 12.

  In addition, since the wire harness 12 has a generally circular cross section, the contact area of the guide wall portion 20 with respect to the outer peripheral surface of the wire harness 12 can be increased by making the guide wall portion 20 have an arc cross-sectional shape. it can. Thereby, the wire harness 12 can be hold | maintained more stably in the mounting board part 14. FIG. Moreover, since the inner surface 28 of the guide wall portion 20 is set to be smaller than a quadrant when viewed from the front, the outer peripheral surface of the wire harness 12 having various diameters is applied to the inner surface 28 of the guide wall portion 20. Therefore, the versatility of the T-clamp 10 for wire harness can be improved.

  In addition, since the guide wall portion 20 is provided on the side edge portion of the plate portion main body 18 on the clip portion 32 side, as shown in FIG. 3, the mounting plate portion 14 has a large-diameter wire harness. Even in the case where 12a is mounted, the large-diameter wire harness 12a protrudes mainly on the side opposite to the clip portion 32 as compared with the wire harness 12. Therefore, even when the large-diameter wire harness 12a is attached to the mounting plate portion 14 of the T-clamp 10 for the wire harness, the separation distance, that is, the offset length between the large-diameter wire harness 12a and the clip portion 32 is made substantially constant. Thus, it is possible to reliably prevent interference between the other members in the vicinity of the fixed portion on the vehicle side where the clip portion 32 is fixed and the large-diameter wire harness 12a.

  Next, the wire harness T-shaped clamp 46 according to the second embodiment of the present invention will be described in detail with reference to FIG. 4, but members and parts having the same structure as the above embodiment are illustrated in the drawing. By attaching the same reference numerals as those in the above embodiment, detailed description thereof will be omitted. That is, the wire harness T-shaped clamp 46 has a guide wall portion 48 from the other side edge portion in the width direction of the upper surface 22 of the plate body 18, that is, from the side edge portion facing the side edge portion on the clip portion 32 side. An embodiment different from the first embodiment described above is shown in that it protrudes obliquely upward outward. Also in the T-clamp 46 for the wire harness of the present embodiment, the position where the guide wall portion 20 is protruded is different from that of the first embodiment. The substantially same effect as the T-shaped clamp 10 for wire harnesses can be obtained.

  In the present embodiment, when the large-diameter wire harness 12 a is attached to the mounting plate portion 14, the large-diameter wire harness 12 a protrudes mainly toward the clip portion 32 compared to the wire harness 12. . Therefore, when the large-diameter wire harness 12a is mounted on the mounting plate portion 14 of the T-clamp 46 for wire harness, the large-diameter wire harness 12a is outside the mounting plate portion 14 of the T-clamp 46 for wire harness. (The right side in FIG. 4) hardly protrudes, and interference between other members near the outside of the mounting plate portion 14 of the T-clamp 46 for the wire harness and the large-diameter wire harness 12a occurs. It can be surely prevented.

  Next, the wire harness T-shaped clamp 50 according to the third embodiment of the present invention will be described in detail with reference to FIG. 5, but members and parts having the same structure as the above-described embodiment are illustrated in the drawing. By attaching the same reference numerals as those in the above embodiment, detailed description thereof will be omitted. In other words, the wire harness T-shaped clamp 50 is such that the guide walls 20 and 48 are respectively protruded obliquely upward and outward from both side edges in the width direction of the upper surface 22 of the plate body 18. An embodiment different from the first and second embodiments is shown. In the present embodiment, a wide range in the circumferential direction of the outer peripheral surface of the wire harness 52 having a radius close to the curvature radius r of the inner surface 28 of the guide wall portions 20 and 48 can be held by the guide wall portions 20 and 48. Therefore, although the versatility is inferior, the wire harness 52 having a diameter that matches the curvature radius r of the inner surface 28 of the guide walls 20 and 48 can be more stably held.

  As mentioned above, although embodiment of this invention has been described, this invention is not limited at all by the specific description in this embodiment. For example, in the above-described embodiment, the guide wall portions 20 and 48 both project from the side edge portion of the upper surface 22 of the plate portion main body 18 in a substantially arc cross-sectional shape outward and obliquely upward. You may protrude in arbitrary cross-sectional shapes, such as a shape and a polygonal cross-sectional shape. Moreover, although both the guide wall parts 20 and 48 extended and formed over substantially the full length of the longitudinal direction of the board part main body 18, they extended in the longitudinal direction and may be formed intermittently.

10, 46, 50: T-clamp for wire harness, 12, 52: Wire harness, 14: Placement plate, 16: Offset plate, 18: Plate body, 20, 48: Guide wall, 32: Clip Part

Claims (3)

A wire configured to include a mounting plate portion that is mounted on a wire harness and is bound and fixed, and an offset plate portion that protrudes to the side of the mounting plate portion and has a clip portion protruding from the protruding end portion. In T-clamp for harness,
The mounting plate portion extends in the longitudinal direction of the wire harness, the plate portion main body from which the offset plate portion protrudes from one of both side edge portions, and protrudes from the plate portion main body and extends in the longitudinal direction of the wire harness. And a T-shaped clamp for a wire harness including a guide wall portion that is in contact with and held on the outer peripheral surface of the wire harness at a portion different from the plate body.   The T-clamp for a wire harness according to claim 1, wherein the guide wall portion protrudes from at least one of the side end portions of the plate portion main body with an arc cross-sectional shape smaller than ¼ of the circumference.   The T-shaped clamp for a wire harness according to claim 1 or 2, wherein the guide wall portion is provided on the side edge portion on the clip portion side of the plate portion main body.