JP2602869Y2 - Clamp for wire harness - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness clamp suitable for fixing and holding a wire harness wired in an engine room of an automobile. More specifically, the present invention relates to a wire harness attached to a pipe as a pipe for an air conditioner. The present invention relates to a wire harness clamp used for fixing.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional wire harness clamp of this type. In the example shown in FIG. 3, a band clamp 2 is attached to one pipe 21 of two metal pipes 21 serving as an air conditioner pipe.
2A and 2B, the wire harness 23 is secured and fixed. In the example shown in FIGS. 4A and 4B, the wire 21 is elastically fitted with a resin-made elastic clamp 24 on the pipe 21. A method for fixing the harness 23,
(A) uses one pipe 21 and (B) uses two pipes 21 for fixing.

[0003]

However, the above-described conventional wire harness clamp has the following disadvantages. That is, in the case of the band clamp system, the workability of attaching the wire harness 23 to the pipe 21 is poor, and if the tightening force of the band clamp 22 is difficult to be constant and too weak, the vehicle vibration For example, there is a problem that the position of the wire harness 23 shifts around the pipe 21 and the route of the wire harness 23 varies. In the case of a resin-made elastic clamp system, in the case of fixing to one pipe 21, the wire harness 23 may be displaced around the pipe 21 together with the clamp after mounting, so that it is the same as the band clamp case. There is a problem that the path of the wire harness 23 varies, and the fixing method of either one or two methods is a catch method, so the clamp 2
There is a problem in that the holding ability in the pullout direction of No. 4 is weak.

In view of the above-mentioned problems, the present invention has good workability in that it can be fixed with a secure holding force between two members having a circular cross section as a portion to be mounted, and can be mounted by one-touch operation. It is an object of the present invention to provide a wire harness clamp.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is configured as follows. That is, a wire harness clamp including a clamp portion for holding the wire harness and a clip portion formed integrally with the clamp portion and inserted and fixed between two members having a substantially circular cross section as an attached portion. Then, the clip portion,
It Na insertable substantially arcuate in such a way as to wrap around along opposite circumferential surface between the two members, a pair of the distal end side is opposite V-shape
Insertion leg piece and a serrated engagement member provided on the inner surface of the insertion leg piece.
The insertion leg is inserted between the pawl and the insertion leg piece.
A piece is inserted so as to go around the outer peripheral surface of the two members.
A wedge-shaped locking member and a serrated shape provided on the outer surface of the locking member
And the insertion leg piece rotates between the two members.
In the inserted state, the locking teeth of the insertion leg and the locking member are locked.
The insertion leg piece and the locking member
Are locked so that they can not move relative to each other.

[0006]

In the clamp for a wire harness according to the present invention constructed as described above, the distal ends of the pair of insertion legs are locked between the two members having a circular cross section, and are locked between the insertion legs. When the member is inserted, a pair of substantially arc-shaped insertion leg pieces engaged with the engagement member are inserted along the outer peripheral surface between the two members, and the distal ends of the pair of insertion legs are connected to the two members. Wrap around the outer surface. In other words, the arc-shaped insertion leg piece is fitted between the opposing surfaces of the two members having the circular cross section. Then, in this state, the locking teeth of the insertion leg
The locking teeth of the members engage each other, whereby the locking member is locked with respect to the insertion leg so as to be immovable relative to the insertion leg, and the insertion leg is prevented from slipping out between the two members. Thus, by performing the operation of pushing the locking member, the insertion leg piece of the clip portion can be mounted between the two members as the mounted portion. It is fixed to the mounted portion with a secure holding force by the stopping action.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a free state immediately before the mounting of the wire harness clamp, and FIG. 2 shows a fixed state where the wire harness clamp is mounted between two pipes which are portions to be mounted. The clamp 1 for a wire harness according to the present embodiment is a resin integrally molded product made of, for example, polypropylene or the like, and has a clamp portion 2 for holding the wire harness 14 so as to hold the wire harness 14 and a circular cross section as a portion to be attached. And a clip portion 3 inserted and fixed between two parallel metal pipes 15 serving as air conditioner pipes in an engine room of an automobile.

The clamp portion 2 includes a pair of semi-annular gripping pieces 5 joined to each other by an integral hinge 4, and an abutment piece 6 for connecting the gripping pieces 5 to each other at a substantially central portion on the back side thereof. As shown in FIG. 1, both holding pieces 5 are always kept in an expanded state.

When the wire harness 14 to be gripped is inserted between the holding pieces 5 and pressed against the integral hinge 4 as shown by the arrow in the figure, the holding pieces 5 are moved as shown by the phantom line in FIG. The wire harness 14 is pivotally moved in the closing direction about the integral hinge 4 so as to hold the wire harness 14. When the joint of the grip pieces 5 with the integral hinge 4 passes through the joint with the abutment piece 6, a force in the closing direction acts on the grip pieces 5 to positively grip the wire harness 14. This gripping state is maintained by the claws 5a provided at the tips of both gripping pieces 5 engaging each other.

On the other hand, the clip portion 3 is fixed to the pipe 15 by being inserted between the pipes 15, and has a pair of insertion leg pieces 7 formed of substantially rectangular plates facing each other at a predetermined interval. And a locking member 8 composed of a substantially wedge-shaped block for inserting the insertion leg piece 7 between the pipes 15 and preventing the insertion leg piece 7 from coming off after insertion. In addition, the clip part 3 has an integral structure with the clamp part 2 by connecting the base end of one insertion leg piece 7 to one end of the abutment piece 6 of the clamp part 2 via a connecting piece 9. .

Thus, the pair of insertion leg pieces 7 are formed in a substantially arc shape so as to be able to wrap around in a state of engagement along the peripheral surfaces of both pipes 15 when inserted between the opposed pipes 15. In a normal state, the distal end side (insertion side) is positioned so as to have a narrow substantially C shape. The distance between the outer surfaces of the distal ends of both insertion leg pieces 7 is set substantially equal to the distance between the narrowest portions of the peripheral surfaces of both pipes 15. In addition, the insertion leg piece 7
The ribs 12 are protrudingly provided on both sides in the width direction on the outer surface (rear surface) side and on the distal end side and the base side. Therefore, since the ribs 12 actually engage with the peripheral surface of the pipe 15, the outer surface side including the ribs 12 which are the engagement surfaces with the peripheral surface of the pipe 15 is formed in a shape closest to an arc. I have.

The pair of insertion leg pieces 7 are connected to each other by thin elastically deformable thin pieces 10 at their distal ends, and both the insertion leg pieces 7 and the locking portion 8 are connected to the base end side thereof. Are connected by elastically deformable thin pieces 11. Note that the distal thin piece 10 normally has a substantially U-shaped curved shape, while the base thin piece 11 has a generally linear shape.

On the other hand, a locking member 8 for pushing the insertion leg 7 between the pipes 15 by pushing it between the two insertion leg pieces 7 has a base end having a flat surface suitable for pressing. A pressing portion 8c is formed, and an engaging portion 8a is provided at the distal end thereof, which can abut on a shoulder 7a having a step-like shape formed on the inner surface of the distal end portion of each of the insertion leg pieces 7. A substantially serrated locking tooth 7b is formed on the inner surface of the insertion leg piece 7, and a substantially serrated locking tooth 8 is formed on the outer surface of the locking member 8 correspondingly.
b is formed. When the teeth are inserted into the space between the pipes 15, the locking teeth 7 b and 8 b bite each other, so that the insertion leg 7 and the locking portion 8 are locked so as to be relatively immovable. A substantially triangular hollow portion 13 is set at the center of the locking portion 8.

Next, the wire harness 1 with the wire harness clamp 1 according to the present embodiment configured as described above is used.
4 will be described. First, when the wire harness 14 to be attached is pushed between the pair of gripping pieces 5 in the expanded state of the clamp portion 2, both gripping pieces 5 rotate around the integral hinge 4, as indicated by phantom lines in FIG. 1. While being displaced toward the abutment piece 6 side. As a result, the wire harness 14 is gripped so as to be held by the gripping pieces 5, and the claws 5 a of the gripping pieces 5 bite to maintain the gripping state.

Subsequently, the rib 12 on the rear surface of the distal end portion of the insertion leg piece 7 in the clip portion 3 is substantially halfway between the outer circumferential surfaces of a pipe 15 as an air conditioner pipe which is shown in phantom lines in FIG. Insert and engage. In this state, when a pressing force in the direction of the arrow is applied to the pressing portion 8c of the locking member 8 to be pressed in, the engaging portion 8a of the locking member 8 engages with the shoulder 7a of both the insertion leg pieces 7, and Is inserted between the two pipes 15 together with the locking member 8.

At the time of this insertion, both insertion leg pieces 7 are pressed inward by the pipe 15 on the base side.
The tip side after passing through the narrowest portion between the pipes 15 is released from the restraint by the pipes 15. That is, the insertion leg piece 7 is inserted while being displaced such that the base side approaches and the tip side separates, and as a result, the insertion leg piece 7 is inserted so as to wrap around the peripheral surface of the pipe 15. Therefore, both insertion leg pieces 7
Is separated from the engaging portion 8a of the locking member 8, but the locking tooth 7b of the insertion leg piece 7 sequentially engages with the locking tooth 8b of the locking member 8 from the distal end side, and finally, The state is as shown in FIG.

That is, the two insertion leg pieces 7 are engaged so as to wind around the opposed outer peripheral surface of the pipe 15, and in this engaged state, the locking member 8 is locked in a wedge shape with respect to the insertion leg piece 7. , The relative movement becomes impossible. The clip portion 3 attached between the two pipes 15 in this manner is prevented from rotating with respect to the pipe 15, the movement in the insertion / removal direction is fixed, and the
The movement is fixed by the frictional force of the engaging surface with the engaging member. Thus, the clip 3 is securely fixed to the pipe 15 in any direction. The thin pieces 10 and 11 respond to expansion and contraction of the insertion leg pieces 7 on the distal end side and the base part side by elastic deformation.

As described above, the clamp 1 for the wire harness according to the present embodiment can be easily operated by a one-touch operation of merely pushing the locking member 8 while pressing the tip of the insertion leg piece 7 between the pipes 15. It can be attached, and can be reliably fixed to the pushed-in position with a strong holding force.

In this embodiment, the pipe 15 for an air conditioner has been described as an example of a portion to which the wire harness clamp 1 is to be attached. However, the present invention is not necessarily limited to this. If the two members are present at a fixed interval, they can be attached parts. The rib 12 may be omitted.

[0020]

As described above in detail, according to the wire harness clamp of the present invention, it can be fixed to a mounting portion with a certain holding force and can be mounted by one-touch operation, so that a vehicle vibration or the like can be obtained. The wire harness can be held at the specified position without being affected by the above, and the working efficiency for mounting can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a state before mounting a wire harness clamp according to an embodiment of the present invention.

FIG. 2 is a side view showing a state where a wire harness is gripped and attached between pipes.

FIG. 3 is an explanatory view of a conventional example of fixing a wire harness using a band clamp.

4A and 4B are explanatory diagrams of a conventional example of fixing a wire harness using an elastic clamp, wherein FIG. 4A shows an example of fixing to one pipe, and FIG. 4B shows an example of fixing to two pipes. ing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wire harness clamp 2 ... Clamp part 3 ... Clip part 7 ... Insert leg piece 7a ... Shoulder part 7b ... Locking tooth 8 ... Locking member 8a ... Engaging part 8b ... Locking tooth 8c ... Pressing part 12 ... Rib

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F16L 3/08 H02G 3/26 F16L 3/22

Claims (1)

(57) [Scope of request for utility model registration] 1. A wire harness comprising: a clamp portion for holding a wire harness; and a clip portion formed integrally with the clamp portion and inserted and fixed between two members having a substantially circular cross section as an attached portion. a use clamps, the clip portion, to name the two members between insertable substantially arcuate in such a way as to wrap around along opposite circumferential surface of its distal end
A pair of inverted leg-shaped insertion legs, serrated locking teeth provided on the inner surface of the insertion leg , and the insertion leg inserted by being inserted between the insertion legs.
A substantially wedge-shaped engaging member inserted around the outer peripheral surface of the two members
A stop member, and a serrated locking tooth provided on an outer surface of the locking member, wherein the insertion leg piece is wound around between the two members,
The locking teeth of the insertion leg and the locking teeth of the locking member engage each other
As a result, the insertion leg piece and the locking member
A clamp for a wire harness that is stopped.