WO2010119582A1

WO2010119582A1 - Band type clamp

Info

Publication number: WO2010119582A1
Application number: PCT/JP2009/067762
Authority: WO
Inventors: 善己内田; 学久米
Original assignee: 住友電装株式会社
Priority date: 2009-04-17
Filing date: 2009-10-14
Publication date: 2010-10-21
Also published as: JP2010252579A

Abstract

A band type clamp which can be mounted to a group of wires so as not to be displaced sideways. A band type clamp is a resin molded product provided with a band engaging section (2), a band (3) projecting from the band engaging section, and a vehicle body engaging section (4) projecting from the band engaging section. The band (3) is equipped with projections (18, 19) provided to one surface of the band so as to be located at intervals along at least both sides of said surface in the lateral direction thereof, said surface being a winding surface (15) to be wound around a group of wires. The projections are staggered in the width direction. An electric wire is caused to meander through an electric wire insertion path between longitudinally adjacent projections.

Description

Band type clamp

The present invention relates to a band-type clamp, and more specifically, is used for binding a wire group of a wire harness routed to an automobile and fixing it to a vehicle body panel.

2. Description of the Related Art Conventionally, a band-type clamp is attached to a wire harness in order to route a wire harness composed of a bundle of electric wires to an automobile and fix the wire harness to a vehicle body panel or the like at a required position.
As shown in FIG. 7A, the widely used band type clamp C has a blade-like locking portion 102 for locking the vehicle body protruding from the outer surface of the band locking portion 101 where the band 100 is protruded. . The band 100 has a serrated engagement groove 103 continuously on one surface and a smooth surface 104 on the other surface, a band through hole 105 is provided on the band engagement portion 101, and an inner peripheral surface of the band through hole 105. A locking piece 106 that locks in the locking groove 103 is provided.

The band clamp C is attached to the electric wire group W at a position where the electric wire group W is attached to the vehicle body panel, as shown in FIG. Specifically, after the smooth surface 104 of the band 100 is wound as a winding surface around the electric wire group, the band 100 is passed through the band through hole 105, and the locking piece protrudes from the inner peripheral surface of the band through hole 105. 106 is locked in the locking groove 103 on the outer peripheral surface side of the band 100, and the wire group W is fastened and attached.
In this way, the blade-like locking portion 102 of the band-type clamp C attached to the wire group W is pushed into the locking hole H of the vehicle body panel P and locked as shown in FIG.

Therefore, if a positional shift occurs between the position of the band-type clamp C attached to the wire group W and the locking hole H of the vehicle body panel P, a problem that the wire group W cannot be attached to the vehicle body panel P occurs.
However, since the smooth surface 104 of the band 100 is wound in contact with the wire group W, the band 100 is likely to slip, and the band clamp C slides sideways in the length direction of the wire group W, so that the vehicle body panel P There is a possibility that a deviation occurs between the engagement hole H and the engagement hole H.

When a large number of electric wire groups are converged and wired, conventionally, as shown in FIG. 8A, an adhesive tape T1 is wound around the electric wire group W in advance and bound, and a band-type clamp C is attached to the outer peripheral surface of the adhesive tape T1. Are often installed. In addition, when the adhesive tape is wound and the electric wire group is not bundled in advance, as shown in FIG. 8 (B), the adhesive tape T2 is first wound around the attachment position of the band-type clamp, and this is wound downward. A band-type clamp C is wound around and attached to the outer peripheral surface of the adhesive tape T2, thereby preventing slippage.
However, when the adhesive tapes T1 and T2 are used as described above, a tape winding operation is required, and a tape cost is required, resulting in a cost increase.

Japanese Patent Application Laid-Open No. 11-255260 proposes a band-type clamp C-1 shown in FIG. 9 as an example in which this type of band-type clamp is attached to a corrugated tube packaged around an electric wire group.
In the band type clamp C-1, a convex portion 202 is provided at a position corresponding to a concave portion of the corrugated tube on the smooth surface 201 of the band 200 wound around the corrugated tube, and the band 200 is positioned and attached to the corrugated tube. .
However, as a band-type clamp used when the corrugated tube is not externally mounted on the electric wire group, a band-type clamp with a measure for preventing skidding has not been proposed.
Further, even if the band-type clamp C-1 shown in FIG. 9 is used, since the electric wire is only passed between the convex portions 202, there is no function of preventing the electric wire from sliding.

JP-A-11-255260

The present invention has been made in view of the above problems. When the corrugated tube does not cover the electric wire group and the electric wire group is not bound with the adhesive tape, as shown in FIG. An object of the present invention is to provide a band type clamp that does not cause a side slip with respect to the electric wire group even if the band type clamp is attached without winding the lower tape on the attachment position of the band type clamp.

In order to solve the above-mentioned problem, the present invention is a band-type clamp that is wound around the outer periphery of a plurality of electric wires and bound as a group of electric wires and fixes the electric wires group to a vehicle body,
A resin molded product comprising a band locking part, a band protruding from the band locking part, and a vehicle body locking part protruding from the band locking part,
The band is provided with convex ribs on one side of the band that is a winding surface around the electric wire group at intervals along at least both sides in the width direction, and these convex ribs are staggered in the width direction. , Let the wire meander through the wire insertion path between the convex ribs adjacent in the length direction,
A locking groove is continuously provided on both end surfaces in the width direction orthogonal to the winding surface of the band or on the surface opposite to the winding surface,
A band through hole is provided in the housing of the band locking portion, a locking piece protruding from the inner peripheral surface of the through hole and locking to the locking groove is provided, and the vehicle body is formed on the outer surface of the housing. A band-type clamp is provided in which a locking portion is projected.

The convex ribs are provided at both ends in the width direction to be arranged in two rows, or are arranged in three rows by providing convex ribs at both ends and the center in the width direction.

As described above, on the winding surface of the band to the electric wire group, when the convex ribs are spaced in the length direction and arranged in a staggered manner in the width direction, the electric wires passing between the convex ribs meander and cross the band. To do. Therefore, even if a load is applied to the band in the side-sliding direction in the length direction of the electric wire group, one of the convex ribs in the width direction is caught on the electric wire, and the side-slip of the band-type clamp can be prevented.

When the continuous locking grooves provided in the band are provided on both end faces in the direction orthogonal to the winding surface provided with the convex rib, the band is locked from both side surfaces of the band through hole provided in the housing of the band locking part. A piece is protruding.
On the other hand, when the continuous locking groove provided in the band is provided on the outer peripheral surface opposite to the winding surface provided with the convex rib, the locking piece protrudes from the upper surface of the band through hole of the band locking portion. ing.

The convex rib has an interval in the length direction through which the electric wire having the maximum outer diameter in the electric wire group can be inserted.
By setting as described above, even when the electric wire having the maximum outer diameter is located on the outer periphery of the electric wire group, the electric wire can be caused to meander and cross the band through the convex ribs. Even if a plurality of electric wires having a small outer diameter are passed through one electric wire insertion passage of adjacent convex ribs, they can be meandered together.

The convex rib has a circular, rectangular or rhombus cross-sectional shape.
The shape of the convex rib is not limited as described above, and when the rhombus or rectangle is formed and the edge is rounded, the lateral displacement of the electric wire can be more reliably prevented without damaging the electric wire.

As described above, in the band type clamp of the present invention, the convex ribs are provided in a staggered arrangement on the band winding surface around the electric wire group, so that the lateral displacement of the band type clamp with respect to the electric wire group can be prevented. Therefore, it is possible to eliminate the need for the lower winding tape at the band-type clamp mounting portion described above, eliminating the tape winding work, and eliminating the tape cost, thereby reducing the cost.
And since an electric wire passes between adjacent convex ribs and is not pressing down an electric wire with a convex rib, there also exists an advantage which does not generate | occur | produce an injury to an electric wire.

The state which attached the band type clamp of embodiment of this invention to the electric wire group is shown, (A) is a perspective view, (B) is principal part sectional drawing. It is a perspective view of the band type clamp. The principal part of the said band type clamp is shown, (A) is a perspective view, (B) is a top view, (C) is sectional drawing. It is a top view which shows the state which has passed the electric wire through the band of the said band type clamp. It is a top view which shows the principal part of 2nd embodiment. It is a top view which shows the principal part of 3rd embodiment. (A), (B), and (C) are drawings showing band-type clamps that are conventionally used. (A) (B) is explanatory drawing in the case of attaching the band type clamp of FIG. It is drawing which shows another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a band-type clamp according to the first embodiment.

As shown in FIG. 1, the band-type clamp 1 is not wound and bundled with a number of electric wires w (w1, w2, w3,... Wn) and is not covered with a corrugated tube, The band-type clamp 1 is attached to these electric wire groups 10 in a disassembled state in which the lower winding tape is not partially wound around the attachment position. And the attachment position of this band type | mold clamp 1 is a position corresponding to the locking hole provided in the vehicle body panel when wiring the wire harness which consists of the focusing body of these electric wire groups 10 to a motor vehicle.

The band-type clamp 1 is made of a resin molded product. As shown in FIG. 2, the band-clamping part 2, the band 3 protruding from the band-locking part 2, and the band-locking part 2 protruding in a direction perpendicular to the band 3 are provided. The vehicle body locking part 4 to be provided is integrally provided.

The band locking portion 2 has a band-shaped through hole 12 in a box-shaped housing 11, and locking pieces 13 project from left and right sides of the inner peripheral surface surrounding the band through-hole 12. A band 3 protrudes from one end side of the band through-hole 12, and a blade-like vehicle body locking portion 4 protrudes from the outer surface of the housing 11. The vehicle body locking portion 4 is provided with a wing portion 4b in a folded shape on both sides from the tip of a shaft portion 4a protruding from the housing 11, and a locking step portion 4c is provided at the tip of each blade portion 4b.

As shown in an enlarged view in FIG. 3A, the band 3 has both end surfaces 16 in the width direction on the winding surface 15 around the electric wire group 10 in a sawtooth shape, and a continuous locking groove 17 is provided. Provided. When the band 3 is inserted into the band through hole 12 of the band locking portion 2, the locking piece 13 is locked into these locking grooves 17.

Convex ribs 18 and convex ribs 19 project from the winding surface 15 of the band 3 at regular intervals along substantially the entire length in the longitudinal direction along both end edges in the width direction. Are provided in two rows.
As shown in FIG. 3 (B), these

convex ribs

18 and 19 on both sides are not positioned on a straight line in the width direction, but are arranged in a staggered manner, and the other side corresponding to the convex rib 18 on one end side is an adjacent convex rib. An electric wire insertion path 20 sandwiched between 19 is used. Similarly, the wire insertion passage 21 between the adjacent convex ribs 18 is provided at a position corresponding to the convex rib 19.

The

convex ribs

18 and 19 are projected in a conical shape as shown in FIG.
In this embodiment, the width W of the band 3 is 6.4 mm, the protruding dimension L1 in the width direction of the

convex ribs

18 and 19 is 1.0 mm, and the protruding height H of the

convex ribs

18 and 19 is 0.4 mm. .

The dimension L2 of the electric wire insertion path 21 between the convex ribs 18 adjacent in the length direction and the electric wire insertion path 20 between the convex ribs 19 is 0.6 mm. This dimension L2 is preferably substantially equal to the outer diameter of the electric wire w having the maximum outer diameter in the electric wire group 10 to be wound.

When the band-shaped clamp 1 having the above-described shape is wound around the electric wire group 10 composed of the separated electric wires w1 to wn, as shown in FIG. The wire 18 is passed through the wire insertion passage 21 between the 18, and then passed through the wire insertion passage 20 between the convex ribs 19. Since the

wire insertion paths

21 and 20 are not provided at positions that cross the band 3 linearly, each wire w meanders and crosses the band 3. And it hold | maintains between the adjacent convex ribs 18 and the convex ribs 19 in this crossing state.

As described above, the wire 3 is wound in an arc shape with the winding surface 15 of the band 3 as the inner peripheral surface while the electric wire w is passed through the band 3, and the band 3 is passed through the band through hole 12 of the band locking portion 2 from the tip. pull. Accordingly, the locking pieces 13 are locked from both sides in the locking grooves 17 at both ends in the width direction of the band 3, and the electric wire group 10 is fastened by band tightening. *

In this way, by winding the band 3 around the electric wire group 10, the electric wire w meanders and crosses the band 3 even if the band 3 is subjected to a side slide in the length direction of the electric wire group 10. The electric wire w is caught by the rib 18 or the convex rib 19, and the side slip of the band 3 can be prevented.
Therefore, the band-type clamp 1 can be held at the mounting position set with respect to the electric wire group 10, and can be accurately aligned with the locking hole provided in the vehicle body panel when being wired in the automobile.

FIG. 5 shows a second embodiment.
The

convex ribs

18 and 19 have a rhombus shape in cross section, and the

convex ribs

18 and 19 are arranged in a staggered manner, whereby one side 18a of the convex rib 18 and one side 19a of the convex rib 19 are arranged in parallel, and the electric wire w is connected to this gap. By passing it through, the electric wire is held to prevent lateral slippage. The rhombic

convex ribs

18 and 19 are provided with a radius R at the edge which is the apex so as not to damage the electric wire w.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.

FIG. 6 shows a second embodiment.
In the second embodiment, three rows of

convex ribs

18, 19, and 25 are provided.
That is,

convex ribs

18 and 19 are provided on the winding surface 15 of the belt 3 at both ends in the width direction at intervals along the length direction, and at the center portion with intervals along the length direction. 25 is provided.
The

convex ribs

18 and 19 on both sides in the width direction are arranged at opposing positions, and the central convex ribs 25 are arranged in a staggered manner with respect to the

convex ribs

18 and 19.
The

convex ribs

18, 19 and 25 are all cylindrical.

As described above, when three rows of convex ribs are provided, the electric wires w passing through the wire insertion paths between the convex ribs 18 adjacent to each other in the length direction, between the convex ribs 25, and between the convex ribs 19 meander in an S shape. Therefore, the lateral displacement of the band-type clamp with respect to the electric wire group can be prevented more reliably.

The present invention is not limited to the above-described embodiment, and a serrated locking groove is provided on the surface opposite to the winding surface provided with the convex ribs of the band, and the locking piece is formed on the upper surface of the band through hole of the band locking portion. May be projected.

DESCRIPTION OF SYMBOLS 1 Band type clamp 2 Band locking part 3 Band 4 Car body locking part 10 Electric wire group 11 Housing 12 Band through-hole 13 Locking piece 15 Winding surface 17 Locking groove
18, 19, 25

Convex rib

20, 21 Electric wire insertion path

Claims

A band-type clamp that wraps around the outer periphery of a plurality of electric wires and binds them as an electric wire group and fixes the electric wire group to the vehicle body,
A resin molded product comprising a band locking part, a band protruding from the band locking part, and a vehicle body locking part protruding from the band locking part,
The band is provided with convex ribs on one side of the band that is a winding surface around the electric wire group at intervals along at least both sides in the width direction, and these convex ribs are staggered in the width direction. , Let the wire meander through the wire insertion path between the convex ribs adjacent in the length direction,
A locking groove is continuously provided on both end surfaces in the width direction orthogonal to the winding surface of the band or on the surface opposite to the winding surface,
A band through hole is provided in the housing of the band locking portion, a locking piece protruding from the inner peripheral surface of the through hole and locking to the locking groove is provided, and the vehicle body is formed on the outer surface of the housing. A band-type clamp characterized by protruding a locking portion.
The band-type clamp according to claim 1, wherein the convex ribs are provided at both ends in the width direction to be arranged in two rows, or are arranged in three rows by providing convex ribs at both ends and the center in the width direction.
The band-type clamp according to claim 1 or 2, wherein the convex rib has an interval in the length direction through which the electric wire having the maximum outer diameter in the electric wire group can be inserted.
The band-type clamp according to any one of claims 1 to 3, wherein the convex rib has a cross-sectional shape of a circle, a rectangle, or a rhombus.