JP2010283965A - Corrugated clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably arrest the rotation of a corrugated tube and hold and fix it with a single touch without crushing a wire rod like a washer tube. <P>SOLUTION: Multiple protruded pieces 21 are projected in parallel in the circumferential direction so that they are erected outward in the radial direction. The protruded pieces are provided on one end side in the direction of the axial line along the outer circumferential end edges of a pair of half annular cylindrical parts 12A, 12B to be fit and fixed on a corrugated tube 30. A hinge 22 is formed on the base end side of the protruded pieces 21 and the protruded pieces 21 and the outer circumferential faces of the half annular cylindrical parts 12A, 12B are coupled together by a strut 27. Each protruded piece 21 is provided with a wire through-hole 23 and a pair of locking parts 25 is projected from its tip. A wire 51 is passed through the wire through-hole 23 in a protruded piece 21A and fixed on a corrugated clamp 10. The other protruded piece 21B is cut at the strut 27 and tipped along the hinge 22. The locking parts 25 are inserted and locked in slits 32 of the corrugated tube 30 to arrest the rotation of the corrugated tube 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a corrugated clamp, and more specifically, is a corrugated clamp that is attached to the outer periphery of a corrugated tube that is sheathed on a wire harness and is fixed to a vehicle body panel, and is intended to prevent rotation of the corrugated clamp attached to the corrugated tube.

  Wire harnesses routed in automobiles are flexible resin-molded products in which annular valleys and ridges are alternately provided in the axial direction in the required area to prevent external interference with other in-vehicle components. It is covered with a corrugated tube. In order to fix the wire harness to the vehicle body panel, a corrugated clamp is attached to the outer periphery of the corrugated tube externally attached to the wire harness, and a bracket protruding from the vehicle body is inserted and locked to a vehicle body locking portion provided on the corrugated clamp.

This type of corrugated clamp is generally shaped as shown in FIGS. 6A and 6B proposed in Japanese Patent Application Laid-Open No. 2004-166403.
The corrugated clamp 1 connects a pair of semi-annular portions 3A, 3B fitted around the corrugated tube T with a thin hinge 2, and the inner circumferential surface of the semi-annular portions 3A, 3B has a valley portion of the corrugated tube T. The rib 4 which fits to is provided. A lock claw 6 is provided at the tip of one semi-annular portion 3A, while a buckle portion 5 is provided at the tip of the other semi-annular portion 3B, and a lock hole into which the lock claw 6 can be inserted and locked. 7 and an insertion port 8 for a bracket (not shown) protruding from the vehicle body.

  This type of corrugated clamp 1 having the above-described configuration can position and fix the corrugated tube T in the axial direction by fitting the ribs 4 to the valleys of the corrugated tube T. However, until the corrugated clamp 1 is fixed to the vehicle body panel, the corrugated tube T and the corrugated clamp 1 are rotatable, and the corrugated tube T cannot be held at a predetermined circumferential position with respect to the corrugated clamp 1.

  In some cases, a washer tube 102, an opener cable, or the like is wired along the corrugated tube T that is externally mounted on the wire harness, and is wound by tape. In such a case, as shown in FIG. 7, the corrugated clamp 1 mounted on the corrugated tube T is positioned on the outer peripheral side of the washer tube 102, and the washer tube 102 is easily crushed by the corrugated clamp 1. Damage may occur.

JP 2004-166403 A

  The present invention has been made in view of the above problems, and restricts rotation in the circumferential direction with respect to the corrugated tube and crushes a wire material such as a washer tube wired along the corrugated tube sheathed on the wire harness. It is an object of the present invention to provide a corrugated clamp that can be easily attached without any problem.

In order to solve the above problems, the present invention is a corrugated clamp that is attached to a corrugated tube that is externally mounted on a wire harness and fixed to a vehicle body panel,
A plurality of projecting pieces are provided radially outwardly via hinges along the outer peripheral edge of a pair of semi-annular tube portions in which a cylindrical portion that is fitted and fixed to the corrugated tube is halved. Projecting and connecting the projecting piece and the outer peripheral surface of the cylindrical portion with a bendable column to hold the standing posture of the projecting piece; and
A pair of wire through holes provided in communication with a groove opened at the tip of each projecting piece, inserted into the slit in the axial direction of the corrugated tube from both ends of the groove, and locked to the inner surfaces on both sides of the slit The locking part of
The wire rod penetrating the wire rod through hole of the projecting piece can be wired along the axial direction on the outer peripheral surface of the cylindrical portion, and the other one projecting piece not passing the wire rod through the wire rod through hole is the There is provided a corrugated clamp characterized in that the strut is cut and tilted to insert and lock the pair of locking portions into the slit of the corrugated tube.

  The corrugated clamp having the above-described configuration uses the protruding piece as a wire holding material / corrugated tube rotation restricting material. When the protruding piece is used as the wire holding material, the wire can be easily held and fixed through the wire through hole of the protruding piece in the standing state without cutting the support column. When the projecting piece is used as a corrugated tube rotation restricting material, the pair of locking portions of the projecting piece is inserted into the slit of the corrugated tube by cutting the support column and tilting the projecting piece, and the corrugated tube and the corrugated clamp. And the positional deviation in the circumferential direction of the corrugated tube can be prevented. Further, since a plurality of protruding pieces are provided in the circumferential direction, one protruding piece at an arbitrary position can be used as the corrugated tube rotation restricting material, and the protruding piece at another position can be used as the wire fixing material.

Further, when the washer tube is passed through the wire rod through hole of the protruding piece, the washer tube passes through the outer peripheral surface of the corrugated clamp, so that the washer tube does not become the inner peripheral side of the corrugated clamp as shown in FIG. The tube is not crushed by the corrugated clamp. Further, the wiring position in the circumferential direction of the washer tube is also positioned with respect to the corrugated clamp so that the wiring is not performed at a position sandwiched between the corrugated tube and the vehicle body.
In addition, the wire can be easily attached to the corrugated clamp by a one-touch operation of pushing the wire into the wire through-hole from the groove opened on the outer surface of the protruding piece, eliminating the conventional work of attaching the corrugated tube to the corrugated tube. Can improve workability.

The plurality of protruding pieces are continuously provided in the circumferential direction with a cut line, and the protruding piece that penetrates the wire and the protruding piece that inserts and locks the locking portion into the slit of the corrugated tube, It is preferable to set it as the structure divided by.
As described above, when the protruding pieces are continuously provided in the circumferential direction through the cut line, when there are a plurality of wires such as a washer tube and an opener cable, the protruding pieces are inserted into the wire through holes of the protruding pieces at arbitrary positions, respectively. Can be attached. And the protrusion piece of the position of the required angle of the circumferential direction with respect to a wire can be cut | disconnected by a cut line, and can be inserted and latched in the slit of a corrugated tube. The cut line is easily broken by an operator by hand to improve workability.

While the cylindrical part that halves the corrugated clamp is made of resin, the support column and the protruding piece are preferably made of rubber, and these resin and rubber are integrally formed by two-color molding,
Instead of integral molding, the rubber posts and projecting pieces are provided as a single unit, while the cylindrical part of the corrugated clamp made of resin is provided separately from the cylindrical part, and the rubber part is provided in the cylindrical part. You may connect.
Thus, by making the support and the protruding piece made of rubber, the support can be easily cut when the protruding piece is used as the corrugated tube rotation restricting material. In addition, by making the protruding piece made of rubber having excellent elastic deformability, it is easy to push the wire from the groove into the wire through hole and insert the locking portion provided on the protruding piece into the slit of the corrugated tube. In addition, it is possible to prevent the wire from being damaged when pushed into the wire through hole.

  The pair of semicircular cylindrical portions of the cylindrical portion constituting the main body portion of the corrugated clamp has one end connected with a thin hinge portion and the other end provided with a lock engaging portion that is locked to each other. A fixing part of the vehicle body panel is provided on one or both of the locking parts, and a convex part that fits with the concave part of the corrugated tube is provided on the inner peripheral surface of the semi-annular tube part.

  As described above, according to the present invention, a wire rod such as a washer tube is passed through the wire rod through hole of the protruding piece protruding in an upright state from the outer peripheral edge of the corrugated clamp, and a washer tube or the like is provided on the outer peripheral side of the corrugated clamp. Since it is wired, it can be held by the corrugated clamp so that the washer tube is not crushed. In addition, it is possible to eliminate the fixing work by winding the washer tube around the corrugated tube with tape. Further, by cutting the support that holds the protruding piece in an upright position, tilting the protruding piece, and inserting the locking portion provided on the protruding piece into the slit of the corrugated tube, the corrugated tube is surrounded by the corrugated clamp. Rotation in the direction can be prevented.

(A) (B) is a perspective view of the open state of the corrugated clamp which concerns on 1st embodiment of this invention. It is a principal part expanded sectional view which shows the vehicle body fixing structure of the corrugated clamp shown in FIG. The lock closed state of the corrugated clamp shown in FIG. 1 is shown, (A) is a rear view, (B) is a side view. (A) (B) shows the operation | work which falls down the protrusion piece shown in FIG. 1, (A) is principal part front explanatory drawing, (B) is the BB sectional explanatory drawing of (A). The state which fixed the wire harness and the wire to the corrugated clamp shown in FIG. 1 is shown, (A) is a perspective view, (B) is a fragmentary sectional view. (A) (B) is sectional drawing which shows the corrugated clamp of a prior art example. It is sectional drawing which shows the conventional method of fixing a washer tube to a wire harness.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a corrugated clamp 10 according to a first embodiment of the present invention.
As shown in FIGS. 1 (A) and 5 (A), the corrugated clamp 10 is externally fitted and fixed to a corrugated tube 30 sheathed on a wire harness W / H routed in an automobile, and the corrugated clamp 10 is connected to the wire harness. A washer tube 51 for wiring along W / H is attached.

  The corrugated clamp 10 includes a cylindrical portion 11 composed of a pair of semicircular cylindrical portions 12A and 12B, and a lock engaging portion 15 that locks and closes the semicircular cylindrical portions 12A and 12B on the corrugated tube 30. The cylindrical portion 11 and the lock locking portion 15 are integrally formed of resin.

  As shown in FIGS. 1 (A) and 1 (B), one end of each of the pair of semi-annular tube portions 12A and 12B is connected to each other via a thin hinge portion 13 so as to be freely opened and closed. On the inner peripheral surfaces of the semi-annular cylindrical portions 12A and 12B, a plurality of ribs 14 that fit into the concave portions 31 of the corrugated tube 30 are projected.

  As shown in FIGS. 1A and 1B, the lock engaging portion 15 includes a lock piece 16A extending from the other end side of one semi-annular tube portion 12A and the other semi-annular tube portion 12B. And a lock frame portion 16B formed on the other end side of the. Lock locking claws 17 project from both ends of the lock piece 16A in the width direction, and a pair of lock locking holes 18 for inserting and locking the lock locking claws 17 are formed in the lock frame portion 16B. It is set as the structure which can carry out lock coupling | bonding of cylinder part 12A, 12B in a closed state.

  As shown in FIGS. 1B and 2, the lock piece 16 </ b> A has a bracket piece 40 having a lock hole 41 protruding from the vehicle body B side between the pair of lock lock claws 17. A bracket through-hole 19 is formed for penetration. Between the pair of lock locking holes 18 of the other lock frame portion 16B, a bracket insertion groove 20 that communicates with the bracket through-hole 19 and inserts and locks the bracket piece 40 is formed. A locking claw 28 that engages with the locking hole 41 of the bracket piece 40 projects from the inner surface of the bracket insertion groove 20.

As shown in FIG. 1 (A) and FIGS. 3 (A) and 3 (B), each semi-annular cylindrical portion 12A, 12B has a plurality of parallel in the circumferential direction along the outer peripheral edge on one end side in the axial direction. The protruding piece 21 protrudes outward in the radial direction. Each protruding piece 21 and the semicircular cylindrical portions 12A and 12B are connected to each other via a bendable column 27 that is inclined. Specifically, one end of the support column 27 is connected to the peripheral edge of the bottom portion of the wire rod through-hole 23 of each protruding piece 21, while the other end is connected to the outer peripheral surface of the semi-annular tube portions 12 </ b> A and 12 </ b> B The piece 21 is held in a standing posture.
In the present embodiment, there are three protruding pieces 21 (21A to 21C) in the semi-annular tube portion 12A, and four in the semi-annular tube portion 12B, and the protruding pieces 21 are continuously arranged in the circumferential direction. A cut line 26 is formed between adjacent protruding pieces 21.

  A thin hinge portion 22 is formed between the base end of each protruding piece 21 and the semi-annular cylindrical portions 12A and 12B. Each protruding piece 21 is provided with a wire through-hole 23 made of a round hole at the approximate center on the tip side of the hinge portion 22. In addition, a wire rod insertion groove 24 that opens to the protrusion end side and communicates with the wire rod through hole 23 is formed on the protrusion end side of each protrusion piece 21, and is opposed to each other from both ends that sandwich the wire rod insertion groove 24. A pair of L-shaped locking portions 25 that bend in the direction are projected.

  The hinge part 22, the projecting piece 21 and the support column 27 are made of rubber, and are integrated with the semi-annular cylindrical parts 12A and 12B of resin products by two-color molding.

  Next, a method for fixing the wire harness W / H and the washer tube 51 wired along the wire harness W / H to the corrugated clamp 10 will be described.

  First, the semi-annular cylindrical portions 12A and 12B of the corrugated clamp 10 are externally fitted to the corrugated tube 30 packaged on the wire harness W / H. At that time, the ribs 14 formed on the inner peripheral surfaces of the semicircular cylindrical portions 12A and 12B are fitted into the concave portions 31 of the corrugated tube 30, and the corrugated tube 30 is attached so as to be immovable in the axial direction. In this state, the lock latching claw 17 is inserted and latched into the lock latching hole 18, and the semi-annular cylindrical portions 12A and 12B are locked and coupled in the closed state.

Next, among the plurality of projecting pieces 21 projecting from the corrugated clamp 10 in a standing posture, one projecting piece 21B at a required position is placed along the cut line 26 on both sides as shown in FIG. , 21C. After the support 27 that holds the projecting piece 21B is cut, as shown in FIG. 4B, the tip end side is tilted toward the corrugated tube 30 with the hinge portion 22 of the projecting piece 21B as a fulcrum.
Next, as shown in FIGS. 5A and 5B, the pair of locking portions 25 of the protruding piece 21 </ b> B are inserted into the slits 32 of the corrugated tube 30, and locked to the inner surfaces on both sides of the slit 32. Thereby, the corrugated clamp 10 and the corrugated tube 30 cannot be relatively rotated, and the circumferential position of the corrugated tube 30 is positioned and held with respect to the corrugated clamp 10.

As shown in FIGS. 5 (A) and 5 (B), the washer tube 51 wired along the wire harness is a wire rod of one protruding piece 21A at a required position among the plurality of protruding pieces 21 other than the protruding piece 21B. The corrugated clamp 10 is inserted into the insertion groove 24 and penetrates the wire through hole 23, and is arranged and fixed along the axial direction on the outer peripheral surface of the cylindrical portion 11 of the corrugated clamp 10.
Note that another wire such as an opener cable may be passed through and fixed to the wire rod through hole 23 of the other protruding piece 21.
Further, when the protruding piece 21 that does not penetrate the wire material such as the washer tube 51 interferes with the external member, it may be cut by the cut line 26 and cut by the hinge portion 22 to be removed.

  As shown in FIGS. 5 (A) and 5 (B), the corrugated clamp 10 having the above-described configuration is formed by inserting the locking portion 25 of the protruding piece 21B, which is formed by cutting the support column 27 into the slit 32 of the corrugated tube 30. The corrugated tube 30 can be held against the corrugated clamp 10 so as not to rotate in the circumferential direction.

  Further, the washer tube 51 is passed through the wire through-hole 23 formed of a round hole of the other protruding piece 21A and fixed, and wired on the outer periphery of the tube portion 11 of the corrugated clamp 10, whereby the washer tube 51 is made of a resin tube. The part 11 is not crushed. Further, the fixing operation of the washer tube 51 is easily completed by a one-touch operation in which the washer tube 51 is pushed into the wire material through hole 23 from the wire material insertion groove 24 of the protruding piece 21A. Therefore, the conventional tape winding operation of the washer tube around the corrugated tube is unnecessary, and the washer tube is not crushed by the tape winding operation.

  Further, a plurality of protruding pieces 21A to 21C are continuously provided in the circumferential direction with the cut line 26, and when the protruding piece 21B is tilted, the protruding piece 21B is formed along the cut line 26 from the protruding pieces 21A and 21C on both sides. Since it has the structure which divides | segments, the protrusion piece 21 of arbitrary positions can be used as the rotation control member of a corrugated tube, and the protrusion piece 21 of a required position can be used as wire rod holding members, such as a washer tube.

  In addition, this invention is not limited to the said embodiment, The said rubber-made protrusion piece 21 and the support | pillar 27 are shape | molded separately from the resin-made cylindrical part 11 and the lock | rock latching | locking part 15, and the cylindrical part 11 is formed after shaping | molding. You may connect to.

DESCRIPTION OF SYMBOLS 10 Corrugated clamp 11 Cylindrical part 12A, 12B Semi-annular cylinder part 13 Thin hinge part 15 Lock latching part 21, 21A-21C Protruding piece 22 Hinge part 23 Wire rod through-hole 24 Wire rod insertion groove 25 Locking part 26 Break line 27 Post 30 Corrugated tube 32 Slit W / H Wire harness

Claims (4)

A corrugated clamp that is attached to a corrugated tube that is externally mounted on a wire harness and fixed to a vehicle body panel,
A plurality of projecting pieces are provided radially outwardly via hinges along the outer peripheral edge of a pair of semi-annular tube portions in which a cylindrical portion that is fitted and fixed to the corrugated tube is halved. Projecting and connecting the projecting piece and the outer peripheral surface of the cylindrical portion with a bendable column to hold the standing posture of the projecting piece; and
A pair of wire through holes provided in communication with a groove opened at the tip of each projecting piece, inserted into the slit in the axial direction of the corrugated tube from both ends of the groove, and locked to the inner surfaces on both sides of the slit The locking part of
The wire rod penetrating the wire rod through hole of the projecting piece can be wired along the axial direction on the outer peripheral surface of the cylindrical portion, and the other one projecting piece not passing the wire rod through the wire rod through hole is the A corrugated clamp, characterized in that the column is cut and tilted to insert and lock the pair of locking portions into the slit of the corrugated tube.   The plurality of protruding pieces are continuously provided in the circumferential direction with a cut line, and the protruding piece that penetrates the wire and the protruding piece that inserts and locks the locking portion into the slit of the corrugated tube, The corrugated clamp according to claim 1, which is divided by   The cylindrical portion is made of resin and the support column and the protruding piece are made of rubber, and are integrally formed by two-color molding, or the support column and the protruding piece are connected to the cylindrical portion separately from the cylindrical portion. The corrugated clamp according to claim 1 or 2.   The cylindrical portion has one end of the pair of semi-annular cylindrical portions connected to each other by a thin hinge portion, and a lock engaging portion that is locked to each other at the other end, and one or both of the lock engaging portions. A fixing portion for the vehicle body panel is provided on the inner circumferential surface of the semi-annular cylindrical portion, and a convex portion that fits into the concave portion of the corrugated tube is provided. The corrugated clamp according to any one of claims 1 to 3, wherein the corrugated clamp is a washer tube and / or an opener cable.

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