JPH07143638A - Forming protector for wire harness - Google Patents

Abstract

PURPOSE:To fix the combination posture of outside and inside enclosures and then achieve a function as a single protector with an arbitrary length by locking a clamp for wire harness at the outer enclosure and then engaging a locking leg part with the leg-part locking window of the inside enclosure. CONSTITUTION:A bundle of electric wires 9 of wire harness are housed in an inside enclosure 3 with a square cross section. In the inside enclosure 3, a number of leg-part locking windows 5 are formed in a line horizontally and are inserted into an outer enclosure 2 on a square cross surface to constitute a protector body 1. A number of locking windows 4 for clamping are formed at the outer enclosure 2. The combination of the locking windows 4 and 5 is selected, the length L of the protector 1 is set to a desired length, and then a clamp 10 is inserted into the combined locking windows 4 and 5. With a clamp 10, a locking part 7 is erected at a locking leg part 8 and the clamp 10 is sealed to a specific part of body at a locking head 6 of the tip, thus varying the length of the protector to a desired length, reducing the number of parts of the protector, and then reducing the cost owing to mass-production.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness molding protector used for accommodating a wire bundle of a wire harness and arranging the wire harness in a vehicle body / apparatus, and adjusting and holding the wire harness. Is.

[0002]

2. Description of the Related Art A molded protector for a wire harness has a cylindrical body or a U-shaped groove for accommodating an electric wire bundle of the wire harness, and has a length and a straight curve shape that are matched to individual installation conditions of a vehicle body and equipment. It has a shape having a cross-sectional area suitable for accommodating a predetermined amount of electric wires, and is used by being attached to a vehicle body or the like. Since the wire harness molding protector arranged in the automobile body has different wire harness arrangement conditions depending on the vehicle type and vehicle number, even if the shape protector has the same cross-sectional area and has a straight shape, Since the required length often differs depending on the vehicle number, a molding protector having the same shape and different lengths only is prepared for many product numbers, and an appropriate one is selected and used.

[0003]

Since the molded protector for a wire harness having the above-described conventional structure has the same cross-sectional shape and a straight shape, it is necessary to manufacture an extremely large number of parts for each required length. There is a problem that the cost becomes high and the complexity of partial management is caused by the existence of many product numbers. The present invention provides a molded protector for a wire harness that solves the above-mentioned drawbacks of the prior art.

[0004]

A molded protector for a wire harness according to the present invention which solves the above technical problem is "a pair of an outer cylinder and an inner cylinder having a shape for inserting and storing a wire bundle of a wire harness, It consists of a protector body that slidably inserts the inner cylinder into the outer cylinder and combines them,
A group of leg locking windows are formed in a row in the inner cylinder, and a clamp locking window is provided in the outer cylinder, and the legs are set in the stepwise insertion amount of the inner cylinder into the outer cylinder. At least one of the part locking windows is arranged in a window arrangement overlapping with the clamp locking window, and a locking head for the vehicle body / device is provided upright at the locking part for the clamp locking window. And, a wire harness clamp having locking legs that are inserted and locked in the leg locking windows is inserted and locked in the clamp locking windows and the leg locking windows in the overlapping posture, It has a structure in which the combined length of the outer tubular body and the inner tubular body is fixed to an arbitrary amount, and the locking head is in a projecting posture from the outer tubular body ". In addition, as a mode of the above-described configuration, a curved tubular body portion may be provided on the inner and outer tubular bodies, or the leg locking window of the inner tubular body may have a shape that can also be used as a clamp locking window.

[0005]

In the wire harness molding protector of the present invention having the above-described structure, the inner cylinder is inserted into the outer cylinder in an appropriate amount, and the wire harness is provided in the clamp locking window and the leg locking window in the overlapping posture. When the wire clamp is inserted and locked, the wire harness clamp is locked and fixed to the outer cylinder by the lock portion of the clamp locked in the clamp lock window, and at the same time, the wire harness clamp locking leg. Since the part engages with the leg locking window of the inner cylinder, the combined posture of the outer and inner cylinders is fixed, and the outer and inner cylinders are integrated to form a single wire harness of arbitrary length Functions as a protector.

Since the above-mentioned coupling and integration can be achieved by gradually selecting the insertion amount of the outer and inner cylinders, the protector of various sizes having different lengths depending on the pair of outer and inner cylinders. Can be set and used. Furthermore, since the outer and inner cylinders can be connected and fixed only by inserting and fixing the wire harness clamp, tape winding for connecting and fixing is not required, and a simple operation can immediately provide a molded protector with a different length. In addition, the number of molding protector parts can be reduced.

[0007]

Embodiments will be described in detail below based on embodiments. First, with reference to FIG. 1 showing a first embodiment of the present invention, a wire protector for a wire harness according to the present invention has an outer cylindrical body 2 having a square cross-section both ends opening and an inner side through which a wire bundle 9 of a wire harness is inserted and housed. The protector body 1 has a structure in which the cylindrical bodies 3 form a pair, and an arbitrary amount of the inner cylindrical body 3 is slidably inserted into the outer cylindrical body 2 without rattling to form a protector body 1.

On the side wall of the outer cylindrical body 2, two clamp locking windows 4 having a proper span are formed, and on the side wall of the inner cylindrical body 3, a leg locking window 5 is formed. When the inner cylindrical body 3 is inserted into the outer cylindrical body 2 and the insertion amount L1 is changed stepwise, the leg locking window 5 and the clamp locking are formed. At least one of the windows 4 is superposed, and a wire harness clamp 10 (hereinafter, simply referred to as a clamp 10) described below is inserted and locked in the superposed window, and a combined length of the inner and outer tubular bodies 2 and 3 is obtained. The length L can be fixedly set to an arbitrary amount.

More specifically, the clamp 10 is shown in FIG.
For reference, a locking head 6 that is fitted and locked in a fitting hole (not shown) of the vehicle body is erected on a plate-shaped locking portion 7, and two parallel projecting pieces are provided below the locking portion 7. Clamp window 4 having a shape having locking legs 8 made of
Has a wide insertion hole 12 communicated with above the narrow lock hole 11, and the lock hole 11 is provided at the center of the insertion hole 12.
Has a shape in which a stopper piece 13 is provided so that the locking portion 7 of the clamp 10 is inserted from the insertion hole 12 and lowered downward as shown by an arrow in the drawing, the locking portion 7 is locked as shown by a dotted line in the drawing. The stopper piece 13 comes into contact with the base of the locking head 6 so that the clamp 10 does not come out of the clamp locking window 4 while being inserted into and fixed to the back side of the hole 11. There is.

The locking leg portion 8 of the clamp 10 has a shape that fits into the leg locking window 5 of the inner cylinder 3 without rattling, and the clamp 10 is inserted into the clamp locking window 4. 1C, the locking leg portion 8 is fitted into the leg locking window 5 overlapping with the clamp locking window 4 to fix the inner cylindrical body 3. Then, the total length L of the molded protector body 1 formed by the combination of the outer and inner cylindrical bodies 2 and 3 is selected and set stepwise based on the arrangement pitch of the leg locking windows 5, and used as a single molded protector. It is structured. The outer / inner cylinders 2 and 3 of this embodiment are formed by bending a molded product in an expanded state and connecting at the connecting portion 14, and the locking head 6 is opened from the upper end of the locking column 17. A known shape having a pair of elastic locking pieces 16 suspended in a leg shape is used.

Next, another embodiment of the present invention will be described with reference to FIGS. That is, the one shown in FIG. 2 is composed of the outer cylinder 2 having the clamp locking windows 4 and the inner cylinder 3 having the leg locking windows 5, and the outer cylinder 2 has four clamp locking windows 4. Are provided at an equal pitch of the pitch P1, and the inner cylindrical body 3 is provided with a group of leg locking windows 5 of the pitch P2, and the pitch P1 is a multiple of the pitch P2. According to the embodiment of FIG. 2, the distance between the clamps 10 can be changed by selecting two of the four clamp locking windows 4. From the relationship of the multiple of the pitch, the wall portion of the inner cylindrical body 3 in the nonexistent portion of the leg locking window 5 does not appear in the clamp locking window 4, and the clamp 10 is clamped in any clamp locking window 4. Can be freely inserted and locked.

On the other hand, in FIG. 3, part or all of the leg locking window 5 of the inner cylindrical body 3 also serves as the clamp locking window 4 into which the locking portion 7 of the clamp 10 can be inserted and locked. It has a shape. When the inner cylinder 3 of FIG. 3 is used, the clamp 10 can be engaged with the inner cylinder 3 protruding from the outer cylinder 2, so that various mounting conditions of the clamp 10 can be dealt with.

In FIG. 4, the straight tubular body portion 15 of the inner tubular body 3 to be inserted into the outer tubular body 2 is followed by a curved tubular body portion 18 having an arbitrary curvature. The thing of this FIG. 4 is suitable when a wire harness is curvedly arranged. The wire harness molding protector of the present invention is not limited to the above-described embodiment, and for example, the locking portion 7 and the locking leg portion 8 of the clamp locking window 4 and the clamp 10, and
There are changes such that the locking head 6 has another shape and the curved cylindrical body portion 18 is provided on the outer cylindrical body 2.

[0014]

As described above, since the wire harness molding protector of the present invention can be used as a molding protector having a variable length and different lengths, the number of parts of the wire harness molding protector can be reduced. By improving the manageability and mass production by sharing it,
It has the effect of promoting cost reduction.

[Brief description of drawings]

FIG. 1 shows a molded protector for a wire harness according to a first embodiment of the present invention, in which (A) is a perspective view thereof, and (B) is a perspective view of its clamp and a clamp locking window. (C) is a cross-sectional view of the state of use

FIG. 2 is a perspective view of a molding protector for a wire harness according to another embodiment of the present invention.

FIG. 3 is a perspective view of a wire harness molding protector according to another embodiment of the present invention.

FIG. 4 is a plan view of a wire harness molding protector according to another embodiment of the present invention.

[Explanation of symbols]

 1 Protector Main Body 2 Outer Cylinder 3 Inner Cylinder 4 Clamp Locking Window 5 Leg Locking Window 6 Locking Head 7 Locking Section 8 Locking Leg 9 Wire Bundle 10 Wire Harness Clamp 11 Lock Hole 12 Insertion Hole 13 Stopper piece 15 Straight cylinder part 18 Curved cylinder part

Claims (3)

[Claims] 1. A protector main body comprising a pair of an outer tubular body and an inner tubular body having a shape for inserting and housing a wire bundle of a wire harness, and slidably inserting the inner tubular body into the outer tubular body to be assembled. A group of leg locking windows are formed in a row in the inner cylinder, and a clamp locking window is provided in the outer cylinder, and in the stepwise insertion amount of the inner cylinder into the outer cylinder, At least one of the leg locking windows is arranged in a window arrangement that overlaps with the clamp locking window, and a locking head for the vehicle body / device is erected at the locking portion for the clamp locking window. And a wire harness clamp having locking legs that are inserted and locked in the leg locking windows is inserted and locked in the clamp locking window and the leg locking windows in the overlapping position. , The combined length of the outer cylinder and the inner cylinder is fixed to an arbitrary amount, and the locking head is fixed to the outer cylinder. Molded protector for wire harness, which is characterized by a structure in which it is in a protruding posture. 2. The molded protector for a wire harness according to claim 1, wherein the protector comprises an inner cylindrical body having a leg locking window that has a dual function as a clamp locking window and the leg locking window. 3. The molded protector for a wire harness according to claim 1, comprising an outer cylinder or an inner cylinder having a curved cylinder portion.