JPH0965542A - Protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector that protects and holds electric wires, wiring harnesses and the like. SOLUTION: A protector houses wiring harnesses 2 in its gutter-shaped body 1 and thereby protects them. A plurality of holding portions 6 are formed on one side wall 1a of the protector body at appropriate intervals. One wiring harness 2b is clamped at the holding portions with another wiring harness 2a housed in the protector body. Thus the wiring harnesses are separately secured on the protector body. A pair of slits 3, 3, a lock 4 and a catch 5 are formed at each of the holding portions 6. The slits are orthogonal to the direction of the insertion of the another wiring harness 2a, and extend from one end to the other end of the side wall 1a. The lock 4, positioned between a pair of the slits, is anchored on the one wiring harness 2b through an elastic piece connecting to the side wall. The catch 5, extending from the other end of the side wall and bridging the two slits, receives the one wiring harness. The one wiring harness is clamped and held between the lock 4 and the catch 5. In addition an electric wire retaining lug is formed at least one of the opposed surfaces of the lock 4 and catch 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protector used for protecting and fixing electric wires, wire harnesses and the like arranged on a vehicle body of a vehicle.

[0002]

2. Description of the Related Art A conventional example of a protector used to prevent a plurality of electric wires constituting a wire harness and signals transmitted through a specific electric wire from being interfered with by currents flowing through other electric wires 5-48533) will be described with reference to the drawings. In FIG. 5A, 15 is a protector body,
Reference numeral 16 is a wire harness, 16a is a current line in which a current or the like flows among a plurality of electric wires in the wire harness 16, 16b
Is a signal line for transmitting a signal such as a telephone line.

As shown in FIG. 5B, line insertion grooves 17a are formed at both ends of a rectangular electric wire holding portion 17, and a current line 16a is attached to one of the insertion grooves 17a.
As shown in (a), the signal line 16b is attached to the other side. Ribs 18 are provided upright on the bottom wall 15a of the protector body 15, and notches 19 are formed at appropriate intervals in the longitudinal direction of the ribs 18.
To form The holding portion 17 to which each line is attached is fitted into the notch 19 of the rib 18. As a result, the current line 16a and the signal line 16b are separately fixed in the protector body 15. However, the protector body 15
Since it is integrally molded from synthetic resin, the holding part 17 must be prepared separately from the protector body 15, and cannot be reasonably molded.

Therefore, in FIG. 6, a plurality of locking pieces 20a for the current line 16a and a plurality of locking pieces 20b for the signal line 16b are provided on the bottom wall 15a of the protector main body 15 so as to project at appropriate intervals. The lines 16a and 16b are sandwiched and fixed by the respective locking pieces. However, since both the current line 16a and the signal line 16b are fixed to the bottom wall 15a, the signal line 16b may be interfered by the current line 16a, and noise or the like may occur in the signal line 16b.

Therefore, in FIG. 7 (a), an inverted L-shaped standing wall 21 is provided in two rows 21a on the bottom wall 15a of the protector body 15.
21b is provided. In FIG. 7B, the L-shaped orthogonal walls 22 are formed on the inner surfaces of the side walls 15b, 15b of the protector body 15, respectively.
a and 22b are provided. The current line 16a is provided on one of the upright wall 21 and the orthogonal wall 22, and the signal line 16 is provided on the other.
Engage each b. However, since the lines 16a and 16b are not held in the above configuration, there is a risk that the lines 16a and 16b may come off the standing wall 21 or the orthogonal wall 22 due to vehicle vibration or the like.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention forms a holding portion for holding and fixing a current line and a signal line in different paths at the same time as the protector body, and the signal line interferes with the current line. An object of the present invention is to provide a protector that prevents noise from occurring by preventing the lines from coming into contact with each other and prevents each line from coming off from the holding portion due to vehicle vibration or the like.

[0007]

To achieve the above object, the present invention relates to a protector for accommodating and protecting a wire harness inside a gutter-shaped protector body, wherein a holding portion is provided on one side wall of the protector body. A plurality of wire harnesses are juxtaposed at appropriate intervals, and one of the wire harnesses is housed inside the protector body, and the other harness of the wire harness is sandwiched by the holding portion. The structure of the protector that clamps and secures the harness to the main body of the protector via a different route is adopted.

The holding portion forms a pair of slits extending from one end of the one side wall to the other end orthogonal to the one harness insertion direction, and an elastic piece connected to the one side wall between the slits. A lock part that engages with the other harness is provided, and an L-shaped receiving part that receives the other harness is provided from the other end of the one side wall across the pair of slits. The structure of the protector that clamps and fixes the other harness is also effective. Furthermore, a structure of a protector in which an electric wire pressing claw is provided on at least one of the facing surfaces of the lock portion and the receiving portion is also adopted.

According to the first aspect of the present invention, one harness is housed inside the protector body, and a plurality of holding portions arranged in parallel with one side wall of the protector body sandwich the other harness. As a result, one harness and the other harness take different paths and are fixed to the same protector body.

According to the second aspect of the present invention, since the lock portion is provided between the pair of slits with the elastic piece interposed therebetween, when the elastic piece bends, the lock portion also bends. According to the third aspect, since the electric wire pressing claw is provided on at least one of the facing surfaces of the lock portion and the receiving portion, the electric wire inserted in the receiving portion receives a force in the electric wire inserting direction.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of embodiments of the invention will be described below with reference to the drawings. 1 to 4 show an embodiment of a protector according to the present invention. In FIG.
Reference numeral 1 is a gutter-shaped or U-shaped protector body, 2 is a wire harness, 2a is a main harness of the wire harness 2 through which an electric current or the like flows, and 2b is a sub-harness including a telephone line or a sensor for transmitting a sound or a signal.

A main harness 2a is inserted into the inside 4 of the protector body 1, a holding portion 6 for inserting the sub-harness 2b is provided on one side wall 1a, and an attaching portion 7 for attaching the protector body 1 to a vehicle is provided. It is provided on one side wall 1a. The holding portion 6 includes a pair of slits 3 and 3 formed on the one side wall 1 a, an elastic piece 8 that is connected to the one side wall 1 a between the slits 3, a lock portion 4 that is continuous with the elastic piece 8, and a lock portion 4. And a receiving portion 5 located below the. Slit 3
Is formed from the upper end to the lower end of the side wall 1a in the longitudinal direction of the side wall 1a, that is, in the direction orthogonal to the insertion direction of the main harness 2a.

As shown in FIG. 2, the elastic piece 8 has its upper end connected to the side wall 1a and its lower end connected to the lock portion. The elastic piece 8 allows the lock portion 4 to bend. FIG.
As shown in, the lock portion 4 is provided with a convex rib 4a as a wire holding claw at the center. A taper 4b for facilitating the insertion of the sub-harness 2b is formed on the elastic piece 8 side of the rib 4a, and the sub-harness 2b inserted into the receiving portion 5 is prevented from coming off on the receiving portion 5 side of the rib 4a. A stopper 4c is formed.

The receiving portion 5 has an L shape and is provided upright on the side wall 1a across the pair of slits 3 and 3. The bottom wall 5a of the receiving portion 5 is formed with a hole 5b, and the standing side wall 5c of the receiving portion 5 is provided with a projection 5d as a wire holding claw on the lock portion 4 side. The protrusion 5d is formed with a taper 5e for facilitating the insertion of the sub-harness 2b on the upper end side of the side wall 1a, and a stopper 5f for preventing the sub-harness 2b from coming off on the bottom wall 5a side of the receiving portion 5. Are formed. The holes 5b formed in the bottom wall 5a are used for die-cutting the synthetic resin when the protector A having the lock portion 4 and the receiving portion 5 is integrally molded from the synthetic resin in the protector body 1. used.

The receiving portion 5 is erected at the lower end of the side wall 1a, and the distance between the protrusion 5d and the bottom wall 5a of the receiving portion 5 is substantially equal to the distance between the rib 4 and the bottom wall 5a. Further, in a normal state, the distance between the protrusion 5d and the rib 4a is smaller than the outer diameter of the sub harness 2b. The shapes of the stopper 5f on the side of the protrusion 5d and the stopper 4c on the side of the rib 4a can be made to correspond to the peripheral edge of the sub-harness 2b. Further, in the specific example of the present invention, the pair of holding portions 6 are provided on the side wall 1a of the protector body 1 at appropriate intervals, but the number of holding portions 6 can be increased more. Further, the holding portion 6 is attached to the side wall 1a of the protector body 1.
Not only, but it is also possible to provide on both side walls 1a, 1b or the bottom wall 1c.

Next, the procedure for inserting the wire harness 2 into the protector A and the operation of the holding portion 6 will be described.
As shown in FIG. 4A, the main harness 2 a of the wire harness 2 is inserted into the protector body 1.
Then, pass the sub-harness 2b under the mounting portion 7,
It is placed on the taper 4b of the lock portion 4 and the taper 5e of the receiving portion 5.

As shown in FIG. 4A, the sub-harness 2
By pressing b in the direction of the bottom wall 5a of the receiving portion 5 (the direction of arrow P), the lock portion 4 rotates inside the protector body 1 via the elastic piece 8, and the distance between the rib 4a and the protrusion 5d is increased. Gradually becomes wider. Then, when the distance becomes the widest, that is, when it becomes equal to the outer diameter of the sub-harness 2b, the sub-harness 2b gets over the projection 5d. Then, as the sub-harness 2b enters the inside of the receiving portion 5, the gap between the rib 4a and the protrusion 5d is gradually narrowed by the rotation of the lock portion 4.

As shown in FIG. 4C, the sub-harness 2
When b comes into contact with the bottom wall 5a of the receiving portion 5, the stopper 4c of the lock portion 4 and the stopper 5f of the receiving portion 5 receive an external force in the downward direction of the sub harness 2b.
Is prevented from coming off. In this way, the main harness 2a and the sub-harness 2b are clamped and fixed to the protector A by different routes.

[0019]

As described above, according to the present invention, since one harness and the other harness are fixed to the protector main body through different paths, for example, a current is passed through one harness and a signal is transmitted through the other harness. Etc., the other harness is not interfered by the current flowing in the one harness. This can prevent noise and the like from being generated in the other harness. Further, since the lock portion is provided between the pair of slits via the elastic piece, the elastic piece can bend the lock portion. Thereby, for example, when inserting the other harness into the receiving portion, the worker can insert the other harness with a weaker force than before, and the insertion force is reduced.

Furthermore, since the other harness receives a force in the inserting direction by the wire holding claw, it is possible to prevent the other harness from returning from the receiving portion. Furthermore, by reducing the insertion force when the other harness is inserted and preventing the other harness from returning after the insertion, it is possible to improve the workability of attaching the other harness to the receiving portion. Thus, the worker can quickly and surely attach the one harness and the other harness to the protector by different routes.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a protector according to the present invention.

FIG. 2 is a perspective view of FIG. 1 viewed from the xx direction.

FIG. 3 is an enlarged view of a main part of FIG. 2;

FIG. 4 is a vertical cross-sectional view showing a procedure of inserting a sub-harness into a main part of a protector according to the present invention, in which (a) shows a state before the attachment and (b) shows an intermediate state. (C) is a figure which shows the state after insertion.

FIG. 5 is a diagram showing a first example of a conventional protector,
(A) is a perspective view, (b) is an enlarged view of a main part of (a).

FIG. 6 is a perspective view showing a second example of a conventional protector.

FIG. 7 is a perspective view showing a third example of a conventional protector, where (a) shows a case in which a standing wall is provided on the bottom wall of the protector body, and (b) shows orthogonal walls provided inside both side walls. It is a figure showing the case where it is.

[Explanation of symbols]

 1 protector body 2 wire harness 3 slit 4 lock part 5 receiving part 6 holding part

Claims (3)

[Claims] 1. A protector for accommodating and protecting a wire harness inside a gutter-shaped protector body, wherein a plurality of holding portions are juxtaposed on one side wall of the protector body at appropriate intervals. A structure in which one harness and the other harness of the wire harness are clamped by the holding portion in a state where one harness is accommodated in the protector body, and the one harness and the other harness are clamped and fixed to the protector body by another route. Protector. 2. The elastic piece, wherein the holding portion forms a pair of slits extending from one end portion to the other end of the one side wall at right angles to the one harness insertion direction, and between the slits, the elastic piece is connected to the one side wall. A lock portion that engages with the other harness via the other harness, and an L-shaped receiving portion that receives the other harness from the other end portion of the one side wall across the pair of slits. The protector according to claim 1, wherein the other harness is clamped and fixed by the above. 3. The protector according to claim 2, wherein an electric wire pressing claw is provided on at least one of the facing surfaces of the lock portion and the receiving portion.