JPH0775234A - Mold protector for wire harness - Google Patents

Abstract

PURPOSE:To facilitate the management of a mold protector for wire harnesses while improving the freedom of the design of its cover and reducing the number of its parts, by making developable through a hinge coupling of the corner of its U-shaped groove type mold protector main body and its cover, and by making developable through another hinge coupling of the corner of its bottom plate and its cover piece which is a comer present on the same side as the foregoing corner. CONSTITUTION:A wire harness is protected by its storage in a U-shaped groove type mold protector main body 1 fitted with a cover 2. The corner of the U-shaped groove type protector main body 1 and the cover 2 is configured in a developable way by a hinge 6. Also, the corner of a cover piece 7 and a bottom plate 4 which is a corner present on the same side as the foregoing corner is configured in a developable way by a hinge 5. By the hinges 6, 5, the protector main body 1 is developed, and as a result, an opening section 8 is formed, and then, the wire harness is stored in the opening section 8, and thereafter, a main groove 9 is formed by the folding of the developed protector main body 1. Further, branched grooves 10A, 10B are provided in an extended way from the main groove 9, and then, the wire harness is stored in the branched grooves 10A, 10B by its branching. Thereby, the freedom of the design of the cover 2 is improved, and the number of the parts of the protector is reduced, and in its turn, the complexity of the management of the parts is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a U-shaped elongated groove body as a main part, in which a wire harness electric wire group is housed and attached to a vehicle body / apparatus, a vehicle body of a wire harness, etc. The present invention relates to a molded protector for a wire harness that is used to arrange and hold an arrangement posture of the wire harness.

[0002]

2. Description of the Related Art A molded protector for a wire harness accommodates an electric wire group in a long groove body and is attached to a vehicle body or the like. Therefore, in order to prevent the stored electric wire from protruding, a cover is provided at a key portion of the groove body. The one provided is often used, and the one having such a lid is configured by connecting the opening / closing lid to the upper edge of the groove body side plate through a thin hinge portion and closing the hinged opening / closing lid. Of the structure for closing the upper opening and the structure for closing the upper opening by detaching a separate lid.

[0003]

Among the known examples of the molding protector for a wire harness with a lid, the one having the opening / closing lid with a hinge is the opening / closing lid when the molding protector is resin-molded by a resin molding die. Since it is not possible to form the die-cutting hole in the groove bottom plate portion, it is necessary to open the opening / closing lid to form the development shape substantially parallel to the groove bottom plate. However, since the groove body of the molded protector has a curved portion and a branched portion, when it is formed into the above-mentioned developed shape,
The groove may overlap under the open / close lid in the open position,
In such a case, resin molding of the open / close lid becomes impossible, so
There is a restriction that the shape of the opening / closing lid must be changed or divided to form the opening / closing lid shape that avoids the overlapping of the opening / closing lid and the groove body.

Therefore, due to the shape limitation, a lid functional problem that a required shape of the opening / closing lid cannot be formed at a required place occurs, and, for example, in the case of the above-mentioned divided lid, when the opening / closing lid is closed, Since there is a restriction that there is no choice but to provide a "lock part to the groove body" on any of the split lids, and the common lock part will be actuated by defining the split lid closing procedure, after storing the wire group The work of closing and locking the opening / closing lid is troublesome, and there is a risk that defective closing lock may occur due to a defective procedure.

On the other hand, the latter one having a separate lid is a combination of the protector main body of the groove body and the separate two members of the lid, so that the number of molding dies becomes plural and the cost becomes high. There is a problem that the number of parts increases and the manageability of parts of the molding protector, which has various shapes and sizes, deteriorates. The present invention provides a molded protector for a wire harness with an opening / closing lid that solves the above-mentioned conventional problems.

[0006]

A wire harness molded protector of the present invention which solves the above technical problems is described as follows: "A cover of an upper opening of the molded protector body is provided at a key part of the molded protector body having a U-shaped groove. In a molded protector for a wire harness having a body, the groove body side plate of the molded protector body in a side edge of the groove body bottom plate of the molding protector body or an intermediate first hinge portion of the groove body side plate and the closed posture of the lid body. Having a second hinge portion along the upper edge of, while making the tip portion from the second hinge portion into a lid body of a required shape,
The structure is characterized in that a lid leg piece is provided between the first hinge portion and the second hinge portion.

Then, the lid leg piece between the first hinge portion and the second hinge portion is formed in such a shape as to be superposed and attached to the outside of the groove body side plate of the molded protector body, or the closing posture of the lid body. At this time, a mode in which the groove body side plate of the molded protector body is configured is adopted, and the second hinge part is bent along the upper edge of the groove body side plate by the bending of the first and second hinge parts. The upper opening is closed by a lid existing at the tip of the part.

[0008]

The lid of the wire harness molding protector of the present invention having the above-described structure has the first and second hinge portions, so that when the resin is molded, "the lid should be parallel to the groove bottom plate. When it is in the "open expanded shape", the lid existing at the tip of the second hinge portion is separated from the groove side plate of the molded protector body by the length of the lid leg piece between the first and second hinge portions. Present the posture that exists in the position. Therefore, the possibility that the developed cover body will interfere with the groove body of the molded protector body is extremely small geometrically, and the degree of freedom of forming a cover body having a necessary and sufficient shape at a key portion of the molded protector body. And the restrained lid formation in the above-mentioned prior art can be remarkably alleviated. Further, the integral structure of the molded protector body and the lid can be secured by the plurality of hinge portions.

[0009]

Embodiments will be described in detail below based on embodiments. First, referring to FIG. 1 showing a first embodiment of the present invention, a U-shaped long groove body is formed, a wire group (not shown) of a wire harness is housed in the groove, and the wire harness is attached and fixed to a vehicle body. In a protector for a wire harness for an automobile, which has a lid 2 for closing the opening 8 at a key portion of the upper opening 8, a wire protector for a wire harness is provided at an intermediate portion of a protector body 1 having a U-shaped long groove body. The first hinge portion 5 and the second hinge portion, which will be described in detail below, are provided at the portions where the main groove body 9 for storing the main wire is branched into Y-shaped branch groove bodies 10A and 10B for storing the branch electric wires. A lid body 2 with a lid leg piece 7 having 6 is provided.

That is, the first hinge portion 5 is a thin-walled hinge formed along the side edge of the groove bottom plate 4 at the end of the main groove 9 where the main groove 9 branches into the branch groove 10B. The two hinge portions 6 are also thin hinges, and are arranged so as to be positioned along the upper edge of the groove body side plate 3A in which the first hinge portion 5 is present in a posture in which the lid body 2 is covered with the opening portion 8. The space between the first hinge portion 5 and the second hinge portion 6 is the lid leg piece 7 of the lid body 2.
In addition to the above, the lid 2 having a required shape is formed at the tip of the second hinge portion 6.

When the lid leg piece 7 and the lid body 2 are bent toward the main groove body 9 with the first and second hinge portions 5 and 6 serving as bending points, the lid leg piece 7 is moved to the main groove body 9 side. The lid 2 is erected in line with the groove side plate 3A, and the lid 2 has an opening of "main groove body 9, branch groove body 10A, part of branch groove body 10B" as shown in FIGS. The portion 8 is collectively closed and has a structure that functions as a molded protector for a wire harness with a lid.
In this embodiment, the groove body side plate 3A of the first hinge portion 5 is omitted to form a cutout window, and the first and second hinge portions 5 and 6 are bent to open the lid body 2 in the opening portion. When the cover leg piece 8 is covered, the cover leg piece 7 in the standing posture becomes a part of the groove body side plate, and is continuous with the groove body side plate 3A which is integrally erected on the groove body bottom plate 4. .

In the above embodiment, as shown in FIG. 1 (A), when the cover 2 is opened and expanded in the same plane as the groove bottom plate 4, the cover 2 is Since the cover leg piece 7 is separated from the molded protector main body 1 by the length of the cover leg piece 7, there is no interference with the branch groove body 10B that is curved from the main groove body 9 and bulges toward the lid body 2 in the open position, and the lid is not covered. The punching hole of the molding die of the body 2 can be set in the mold, and the above-described action can be achieved. In addition, 12 in the figure is a protector main body 1
Is a mounting portion for mounting and fixing the. Then, the lid 2 is provided with a closing lock portion (not shown) that locks the posture of covering the opening 8 as necessary.

Next, another embodiment of the present invention will be described with reference to FIGS. That is, similarly to the embodiment of FIG. 1, it has a first hinge part 5 and a second hinge part 6, and a cover leg piece 7 and a tip of the second hinge part 6 are required between the first and second hinge parts 5 and 6. In the molded protector for a wire harness with a lid that forms the lid 2 in the shape of FIG. 2, the lid leg piece 7 is composed of two parallel thin flexible strips 13 and the thin strip 13 is formed.
Of the first hinge part 5 integrally connected to the side edge of the groove bottom plate 4 and the other end of the second hinge part 6 are connected to the lid body 2. Then, when the lid 2 is attached to the opening 8 with the first and second hinge portions 5 and 6 as the bending points, the lid leg pieces 7 of the thin strip 13 are attached to the groove side plate 3A of the main groove 9. It stands up in contact with the outside and functions as a leg piece of the lid 2.

On the other hand, in FIG. 3, the first hinge part 5 is
Located in the upper and lower middle of the groove body side plate 3A of the main groove body 9,
The lid leg piece 7 is slightly shorter. Then, when the lid body 2 is in the deployed state, the lid body 2 in the deployed state is the branch groove body 10B.
It is located at the shortest distance (shortest distance from the main groove body 9) that does not interfere with. In the embodiment of FIG. 3,
The opening of the mold of the lid 2 is made as close as possible to the mold of the protector body 1 so as to miniaturize the resin molding die, which can be miniaturized according to the approaching amount. .
The first hinge portion 5 in the embodiment of FIG. 3 does not necessarily have to be parallel to the groove bottom plate 4, and the dotted line 5A shown in the figure.
As described above, the groove bottom plate 4 may be slightly inclined to further improve the interference avoidance property in the expanded state.

[0015]

As described above, in the wire harness molding protector of the present invention, a lid is provided at a key part of the U-shaped groove molding protector. In the resin molding die, the lid molding die is used. Since the setting performance of the punch hole is improved, the design freedom of the shape and setting position of the lid is improved, and the lid having a necessary and sufficient function is provided to improve the performance of the wire harness molding protector. With the integrated structure including the hinge portion, there is an effect that complexity of component management is suppressed.

[Brief description of drawings]

FIG. 1 shows a wire harness molding protector according to a first embodiment of the present invention, in which FIG.
(B) in the figure is a perspective view of the cover-covered state, and (C) in the figure is a cross-sectional view of the cover-covered state.

2A and 2B show a molded protector for a wire harness according to another embodiment of the present invention, in which FIG. 2A is a perspective view of a lid body in a developed state, and FIG. 2B is a cross-sectional view of the lid body in a covered state. Figure

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Molding protector main body 2 Lid body 3A / 3B Groove side plate 4 Groove bottom plate 5 First hinge part 6 Second hinge part 7 Lid leg piece 8 Opening part 9 Main groove body 10A / 10B Branch groove body 13 Thin band piece

Claims (3)

[Claims] 1. A wire harness molded protector having a lid of an upper opening of the molded protector body in a main part of the molded protector body of a U-shaped groove body, wherein a side edge of a groove bottom plate of the molded protector body or A first hinge part in the middle of the groove body side plate and a second hinge part along the upper edge of the groove body side plate of the molding protector body in the closed posture of the lid body, and a tip part from the second hinge part Is a lid body having a required shape, and a lid protector is provided between the first hinge portion and the second hinge portion. 2. The molded protector for a wire harness according to claim 1, wherein the cover leg piece is a cover leg piece that overlaps with the outside of the groove body side plate of the mold protector body when the cover body is in the covering posture. 3. The molded protector for a wire harness according to claim 1, wherein the cover leg piece is a cover leg piece having a shape which forms a part of the groove body side plate of the molded protector body in the covering posture of the cover body.