JP2013090521A - Band for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate band fastening lock operation for a band for wire harness of a side lock.SOLUTION: There is provided a band 1 for wire harness formed by uniting a main body part 2 having lock pieces 4A and 4B projected from both right and left inner surfaces of a through hole 3, and a band part 5 projecting from the main body part 2. The band part 5 is provided with locked projections 6A and 6B, to which the lock pieces 4A and 4B of the main body part 2 are locked, so as to face each other on both right and left side faces along a length thereof, successively at constant intervals, holes 7 are bored in a right-left width-directional center part of the band part 5 at intervals along the length, and also provided in the center part of the band part 5 between the locked projections 6A and 6B projecting at right and left opposite positions, and connection parts 8 where the holes 7 are not provided are present in the right-left width direction between the locked projections 6A and 6B adjoining each other along the length.

Description

  The present invention relates to a band for a wire harness, and more specifically, is used for binding a wire harness to be routed in an automobile, and in particular, a side lock type that can be suitably attached to a wire harness to be routed in a narrow routing space. This facilitates the band tightening and locking operation of the wire harness band.

  2. Description of the Related Art Conventionally, for example, a wire harness band (band clamp) 100 shown in FIGS. 6 and 7 is used to bind a wire harness composed of a group of electric wires arranged in an automobile. In the wire harness band 100, a band portion 101 for binding the wire harness W / H is projected from a box-shaped main body 103, and the band portion 101 wound around the wire harness W / H is attached to the main body 103. A through-hole 104 is provided, and a clamp portion 107 that locks to the vehicle body panel P is provided on the outer surface of the upper wall of the main body portion 103. A locked groove 102 is continuously provided in the central portion of the band portion 101 in the left-right width direction at intervals in the length direction, and on the inner surface of the upper wall surrounding the through hole 104 of the main body portion 103. A locking piece 106 that locks in the locked groove 102 of the band portion 101 is projected. With the above configuration, the band portion 101 is wound around the wire harness W / H, the band portion 101 is tightened through the through hole 104 of the main body portion 103, and the upper wall of the through hole 104 is engaged with the locked groove 102 of the band portion 101. By locking the locking piece 106 on the inner surface side, the wire harness band 100 can be attached to the wire harness W / H.

  However, in the wire harness band 100 having the above configuration, in order to lock the locking piece 106 on the inner surface of the upper wall of the through hole 104 in the locked groove 102 of the band portion 101 as shown in FIG. Since a space for bending the locking piece 106 upward as shown in FIG. 7A is required, the height of the main body 103 of the wire harness band 100 is large, and the wire harness is routed in a narrow space. May not be attached.

  In view of this, the applicant of Japanese Patent Application Laid-Open No. 2011-149456 discloses that the locking pieces 116A, 116B from the inner surfaces of the left and right side walls 115A, 115B surrounding the through hole 114 of the main body 113, as shown in FIG. And projections (1/4 arc ribs) 112A and 112B to which the locking pieces 116A and 116B are locked on the left and right side surfaces of the band portion 111 passing through the through hole 114 are continuous in the length direction. The band portion 111 wound around the outer periphery of the wire harness W / H and tightened through the through hole 114 of the main body portion 113 is engaged by the side lock between the locking pieces 116A and 116B and the locked projections 112A and 112B. A wire harness band 110 to be stopped is proposed. The side lock makes it possible to keep the height of the main body 113 low.

JP 2011-149456 A

  In the side lock type of the wire harness band 110, as shown in FIG. 8C, the locking pieces 116A and 116B projecting on the inner surfaces of the side walls 115A and 115B of the main body 113 are provided on the left and right side surfaces of the band 111. In order to lock the locking projections 112A and 112B provided, the side walls 115A and 115B of the main body 113 with protruding locking pieces 116A and 116B are bent outward as shown in FIG. 8B. However, the locked projections 112A and 112B of the band portion 111 must get over the locking pieces 116A and 116B. Therefore, in order to lock the band portion 111 passed through the through hole 114 with the side lock, a considerably large tensile force is required, and there is a problem that the tightening locking operation of the band portion 111 is not easy.

  This invention is made in view of the said problem, and makes it the subject to make it easy to perform the band clamp | tightening latching work of the band for side lock type wire harnesses.

In order to solve the above-mentioned problem, the present invention is a wire harness band in which a main body portion protruding locking pieces from the left and right inner surfaces of a through hole and a band portion protruding from the main body portion are integrally formed,
The band part is continuously provided with a projection to be engaged with the locking piece of the main body part at a predetermined interval so as to oppose the left and right side surfaces along the length direction, and the band part. A hole is provided in the center in the width direction of the portion with a space in the length direction, and each hole is provided in the center of the band portion sandwiched between the locked protrusions protruding at the left and right facing positions; A wire harness band is provided in which a connecting portion that does not have the hole is provided in the lateral width direction of the band portion between the locked projections adjacent in the length direction. .

  As described above, the wire harness band of the present invention is configured to be locked with side locks, and the locking pieces protrude from the inner surfaces of the left and right sides of the through hole of the main body portion, and the length of the band portion that passes through the through hole. Locked projections to be locked with the locking pieces are continuously provided on the left and right side surfaces along the direction at regular intervals at left and right opposing positions. In particular, since the hole is provided at the center position in the left-right width direction of the band portion sandwiched between the engagement protrusions provided at the left and right facing positions, when the band portion is tightened through the through hole, the band portion is covered. It is possible to easily get over the locking piece on the through hole side while the locking projection deforms the hole adjacent in the width direction. Accordingly, the locking piece can be flexibly bent inwardly without bending the side wall of the main body portion provided with the locking piece protruding outward as in the prior art. Can be locked to the locked protrusions, and the tightening locking operation of the band portion can be facilitated.

  Further, by providing the hole in the band part, the amount of resin for manufacturing the band part can be reduced, and the manufacturing cost can be reduced. Further, when the wire harness is disassembled, the band portion can be easily cut by the hole and the band portion can be removed from the wire harness, so that impurities during the recycling process of the wire harness can be reduced.

  In addition, as described above, a connecting portion not provided with the hole in the left-right width direction of the band portion is provided between the locked protrusions adjacent in the length direction of the band portion, Both sides are connected to give an appropriate tension in the width direction of the band part. In this way, by providing the connecting portion between the locked projections adjacent to each other in the length direction of the band portion, the band portion is excessively secured while ensuring the bending for the locked projection to get over the locking piece. It is possible to prevent the locking piece and the locked protrusion from being unlocked by restricting the bending.

  It is preferable that the main body has a box shape, and a clamp for locking the vehicle body projects from the upper surface of the main body to form a band clamp.

  Since the wire harness band according to the present invention can hold the body portion at a low height as a structure that is locked with a side lock as described above, even when a clamp is attached to the upper surface of the body portion and fixed to the vehicle body panel. The distance from the wire harness bound at the band portion to the vehicle body panel can be kept small. Therefore, the wire harness band of the present invention as a band clamp can be effectively used even when the wire harness is routed and fixed in a narrow space.

  The shape of the hole provided in the band part is not particularly limited as long as the band part can be bent, but the front end side in the insertion direction to the through hole is a rectangle, an ellipse, an ellipse having a large length direction dimension. It is preferable that the base is a triangular shape, and ribs are provided on the periphery of the hole.

By making the hole into a rectangle, an ellipse, an ellipse, or a triangle with a large size in the length direction, the band part with the projections to be locked projecting on both sides can be flexed smoothly along the length direction. Therefore, the locked protrusion of the band portion can smoothly get over the locking piece on the through hole side. In addition, as the hole has a triangular shape with the front end side in the insertion direction into the through hole as the base and the rear end side as the apex angle, the locking stability between the locking piece and the locked protrusion is enhanced and locked. Detachment can be prevented.
Furthermore, by providing ribs at the periphery of the hole, the strength of the hole periphery can be increased, and excessive bending of the band portion can be restricted to prevent the locking piece and the locked protrusion from being unlocked.

  As described above, the wire harness band of the present invention is of a side lock type, and has locking pieces projecting from the inner surfaces of the left and right sides of the through hole of the main body portion, and along the length direction of the band portion passing through the through hole. Locked projections to be locked with the locking pieces are continuously provided on the left and right side surfaces at regular intervals at left and right facing positions. In particular, since the hole is provided at the center position in the left-right width direction of the band portion sandwiched between the engagement protrusions provided at the left and right facing positions, when the band portion is tightened through the through hole, the band portion is covered. It is possible to easily get over the locking piece on the through hole side while the locking projection deforms the hole adjacent in the width direction. Therefore, even if the side wall of the main body portion protruding from the locking piece is not bent outward as in the prior art, the band portion provided with the locked protrusion is flexibly bent inward to Since it can be made to latch to a to-be-latched protrusion, the fastening operation | work of a band part can be performed easily, without requiring big tensile force.

  In addition, as described above, a connecting portion not provided with the hole in the left-right width direction of the band portion is provided between the locked protrusions adjacent in the length direction of the band portion, Both sides are connected to give an appropriate tension in the width direction of the band part. In this way, by providing the connecting portion between the locked projections adjacent to each other in the length direction of the band portion, the band portion is excessively secured while ensuring the bending for the locked projection to get over the locking piece. It is possible to prevent the locking piece and the locked protrusion from being unlocked by restricting the bending.

BRIEF DESCRIPTION OF THE DRAWINGS The band for wire harnesses of embodiment of this invention is shown, (A) is a front view, (B) is an AA sectional view. It is sectional drawing which shows the state which locked the band for wire harnesses attached to the wire harness to the vehicle body panel. (A) is explanatory drawing which shows the state just before fastening the band part which let the through-hole pass, and latching the latching piece by the side of a through-hole to the latching protrusion by the side of a band part, (B) is after latching It is explanatory drawing which shows a state. The 1st modification and 2nd modification of this embodiment which changed the shape of the hole of a band part are shown, (A) is a figure which shows the shape of the hole of the band part in a 1st modification, (B) is 2nd It is a figure which shows the shape of the hole of the band part in a modification. It is a front view which shows the band for wire harnesses of the 3rd modification of this embodiment. A prior art example is shown, (A) is a front view of the band for wire harnesses, and (B) is a cross-sectional view along the line BB. A conventional example is shown, and (A) shows a state immediately before a band portion wound around the outer periphery of a wire harness is tightened through a through hole, and a locking piece on the through hole side is locked in a locked groove on the band side. Sectional drawing which shows, (B) is sectional drawing which shows the state after latching. A conventional example is shown, (A) is a front view of a band for a wire harness, (B) is tightening a band portion that is passed through a through hole, and locks a locking piece on the through hole side to a locked protrusion on the band side. Explanatory drawing which shows the state just before making it perform, (C) is explanatory drawing which shows the state after latching.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of the present invention. As shown in FIGS. 1 and 2, the wire harness band 1 of the present embodiment includes a box-shaped main body portion 2 for locking the band, a band portion 5 protruding from the main body portion 2, and the main body portion 2. The band clamp is a resin molded product integrally provided with a clamp 9 for locking the vehicle body protruding from the outer surface of the upper wall.

  The main body portion 2 is provided with a through hole 3 through which the band portion 5 penetrates in the front-rear direction of the main body portion 2 of the wire harness band 1 shown in FIG. The band portion 5 is projected from the vicinity of the edge of the one side opening 3 a of the through hole 3, the opposite other side opening 3 b is used as an inlet for inserting the band portion 5, and the one side opening 3 a is used as an outlet for drawing out the band portion 5. A pair of locking pieces 4A and 4B project from the inner surfaces of the left and right side walls surrounding the through hole 3 at opposite positions, and are respectively locked to the locked projections 6A and 6B provided on the left and right side surfaces of the band portion 5 described later. Thus, the band portion 5 is side-locked.

  The band portion 5 is continuously provided with locked projections 6A and 6B for locking the locking pieces 4A and 4B at left and right side surfaces along the length direction at regular intervals at left and right opposing positions. In addition, a rectangular hole 7 having a large size in the length direction is provided at a constant interval in the length direction at the center of the band portion 5 sandwiched between the locked protrusions 6A and 6B at the left and right facing positions, Between the holes 7 adjacent to each other in the length direction, connecting portions 8 for connecting the left and right sides of the band portion 5 are provided in the width direction, and the left and right ends of the connecting portion 8 are locked projections adjacent to each other in the length direction. It is located between 6A and 6B.

  The clamp part 9 has the same shape as the clamp part of the conventional band clamp. That is, a plate portion 9a is projected on the outer surface of the upper wall of the main body portion 2, and a support shaft portion 9b is erected from the center of the bottom surface of the plate portion 9a, and is folded back from a position facing the tip of the support shaft portion 9b. A pair of locking blade portions 9 c are provided so as to project, and a locking step portion 9 d that locks to the periphery of the locking hole 21 of the vehicle body panel 20 is provided at the tip of each locking blade portion 9 c.

  As shown in FIG. 2, the wire harness band 1 having the above-described configuration has a band portion 5 wound around the outer periphery of a wire harness W / H including a plurality of electric wires W, and the band portion 5 is passed through the through hole 3 of the main body portion 2. Is inserted from the inlet 3b and pulled out from the outlet 3a. The pulled-out band portion 5 is pulled and tightened in the direction of the arrow in FIG. 3A, and the locking pieces 4A and 4B on the inner surfaces of the left and right side walls of the main body portion 2 are connected to the left and right side surfaces of the band portion 5 as shown in FIG. The wire harness band 1 is attached to the wire harness W / H by being locked to the locked protrusions 6A and 6B. The wire harness W / H is routed in an automobile, and the clamp portion 9 of the wire harness band 1 is inserted and locked into the locking hole 21 of the vehicle body panel 20 as shown in FIG.

  As described above, the wire harness band 1 of the present embodiment is configured to be locked by side locks, and the locking pieces 4A and 4B project from the inner surfaces of the left and right side walls surrounding the through hole 3 of the main body 2, and The projections 6A and 6B to be locked with the locking pieces 4A and 4B are continuously provided at left and right opposing positions on the left and right side surfaces along the length direction of the band portion 5 passing through the through-hole 3 at regular intervals. Provided. In particular, since the rectangular hole 7 having a large length direction dimension is provided at the center position in the width direction of the band portion 5 sandwiched between the locked projections 6A and 6B provided at the left and right facing positions, the band portion 5 When tightening through the through-hole 3, the locked projections 6A, 6B of the band part 5 easily get over the locking pieces 4A, 4B on the through-hole 3 side while deforming the hole 7 adjacent in the width direction. [FIGS. 3A and 3B]. Therefore, the band portion 5 provided with the locked projections 6A and 6B is flexibly bent inwardly without engaging the side wall of the main body portion protruding with the locking pieces as in the prior art. Since the stop pieces 4A and 4B can be locked to the locked protrusions 6A and 6B, the tightening and locking operation of the band portion 5 can be facilitated without requiring a large tensile force. In addition, by providing the hole 7 in the band part 5, the amount of resin for manufacturing the band part 5 can be reduced, so that the manufacturing cost can be reduced.

  Further, as described above, the connecting portion 8 not provided with the hole 7 in the left-right width direction of the band portion 5 is provided between the locked projections 6A and 6B adjacent to each other in the length direction of the band portion 5, The right and left sides of the band part 5 are connected by the part 8 to give an appropriate tension in the width direction of the band part 5. In this way, by providing the connecting portion 8 between the locked projections 6A and 6B adjacent to each other in the length direction of the band portion 5, the locked projections 6A and 6B get over the locking pieces 4A and 4B. It is possible to prevent the locking pieces 4A and 4B and the locked projections 6A and 6B from being unlocked by restricting excessive bending of the band portion 5 while securing the bending of the locking portions 4A and 6B.

4A and 4B show a first modification and a second modification of the present embodiment.
In the first modification, instead of the rectangular hole 7 in the present embodiment, an oval hole 17 is used as shown in FIG. 4A, and a connecting portion is provided between the hole 17 and the hole 17 adjacent in the length direction. 18 is provided. Further, in the second modification, instead of the rectangular hole 7 in the present embodiment, as shown in FIG. 4 (B), it is an isosceles triangular hole 27 with the front end side in the insertion direction to the through hole 3 as the base, A connecting portion 28 is provided between the holes 27 adjacent to each other in the length direction.

FIG. 5 shows a third modification of the present embodiment.
In the third modification, a rib 10 is provided on the periphery of the hole 7 of the band portion 5 in the present embodiment.

  As described above, the rib 10 is provided at the periphery of the hole 7 of the band portion 5 to increase the strength of the periphery of the hole 7 and restrict excessive bending of the band portion 5 to prevent the locking pieces 4A and 4B from being covered. The locking protrusions 6A and 6B can be prevented from being unlocked.

DESCRIPTION OF SYMBOLS 1 Wire harness band 2 Main-body part 3 Through-hole 4A, 4B Locking piece 5 Band part 6A, 6B Locking protrusion 7, 17, 27 Hole 8, 18, 28 Connection part 9 Clamp part 10 Rib

Claims (3)

A wire harness band integrally formed with a main body portion projecting a locking piece from the left and right inner surfaces of the through hole and a band portion projecting from the main body portion,
The band part is continuously provided with a projection to be engaged with the locking piece of the main body part at a predetermined interval so as to oppose the left and right side surfaces along the length direction, and the band part. A hole is provided in the center in the width direction of the portion with a space in the length direction, and each hole is provided in the center of the band portion sandwiched between the locked protrusions protruding at the left and right facing positions; A wire harness band characterized in that a connecting portion not provided with the hole is provided in the left-right width direction of the band portion between the locked protrusions adjacent in the length direction.   The band for a wire harness according to claim 1, wherein the main body portion has a box shape, and a clamp for locking the vehicle body projects from the upper surface of the main body portion to form a band clamp.   The hole provided in the band portion is a rectangle, an ellipse, an ellipse having a large length direction dimension, or a triangular shape with the front end side in the insertion direction into the through hole as a base, and ribs are provided on the periphery of the hole. The band for wire harnesses according to claim 1 or 2.

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