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Storage member for long material and method of manufacturing the storage member

a technology of storage members and long materials, applied in the field of housing members, can solve the problems of resin loss, and heavy weight of housing members

Inactive Publication Date: 2005-06-16
MIRAI KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] An object of the present invention is to provide a housing member for an elongate material which is high in strength, light in weight and easy to handle, and is capable of being manufactured at low cost, and a manufacturing method therefor.
[0010] Another object of the present invention is to provide a connecting tool which easily and reliably connects the housing members, and enhances efficiency in a lay-out operation.
[0011] Still another object of the present invention is to prevent bending of the housing member and make it possible to place the housing members with a minimum number of racks.

Problems solved by technology

However, in general, housing members are made of concrete or metal, and therefore are heavy in weight.
In order to maintain strength, it is necessary to increase the plate thickness for the housing member, and as a result, the housing member becomes heavy in weight.
As a result, the advantage of being made of resin is lost, thus hampering transportation and operation.
Further, in order to carry out wiring according to the aforementioned second method, the base and the cover have to be separately molded, and therefore the cost increases.
However, in the state in which the aforesaid base is only connected to the connecting base body, the connection is imperfect.
When the above-described connecting tool is used, especially at the time of lay-out operations when the aforesaid housing members are exposed or buried outdoors, there exist the following problems.
Therefore, if the cable is placed on a large number of the aforesaid bases which are incompletely connected by only the connecting base bodies along the lay-out path, the bases and the connecting base bodies are easily disconnected by the impact due to placement of the cable and the weight of the cable.
Further, the connection state is not stabilized, and therefore there is the possibility that the connecting base bodies will be displaced with respect to the bases and disconnected.
Therefore, the lay-out operation for the cable becomes troublesome and difficult.
Especially as the housing member including the base and the cover, becomes difficult to attach and detach the cover to and from the base and as a result that the housing member bends.
In order to relieve or prevent bending of the housing member, it is suitable to increase the number of racks per unit length, but since a large number of racks are needed, the lay-out operation becomes cumbersome.

Method used

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  • Storage member for long material and method of manufacturing the storage member
  • Storage member for long material and method of manufacturing the storage member
  • Storage member for long material and method of manufacturing the storage member

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0077] Hereinafter, the present invention will be explained based on FIG. 1 to FIG. 10. In the following explanation, for each part of an intermediate molded product T′ of a housing member (trough) T, “dash” is given to the reference numeral and character of each part of the finished product, and thereby the housing member T and the intermediate molded product T′ are distinguished.

[0078] As shown in FIG. 1, in the intermediate molded product T′ forming a cylindrical shape made of a resin, the shape of a section perpendicular to its longitudinal direction forms an approximately square shape, and has approximately uniform wall thickness. The intermediate molded product T′ has a pair of left and right portions to be cut off 31′, which continue along a longitudinal direction S, a cover C′ located at an upper position from them, and a base B′ located at a lower position from the aforesaid pair of portions to be cut off 31′. The pair of portions to be cut off 31′, the cover C′ and the bas...

second embodiment

[0098] Next, the present invention will be explained based on FIG. 11 to FIG. 16. In this embodiment, first and second reinforcement tools R1 and R2 are included in the housing member T in the embodiment shown in FIG. 1 to FIG. 10. The same reference numerals and characters are given to the same components as those in the embodiment in FIG. 1 to FIG. 10, and the explanation thereof will be omitted.

[0099] As shown in FIG. 11 and FIG. 12, the first reinforcement tools R1 are inserted in concave portions 33, which are each formed in an inner side of the convex portion 2 of the base B, at predetermined intervals along the longitudinal direction S of the base B. Each of the reinforcement tools R1 forms an approximately U-shape corresponding to the sectional shape of the base B. As shown in FIG. 13 and FIG. 14, the first reinforcement tool R1 is inserted into the concave portion 33 so that predetermined spaces are formed between both end portions (upper end portions of upright portions in...

third embodiment

[0104] Next, the present invention will be explained based on FIG. 17 to FIG. 27. The housing member T of this embodiment is the same as the housing member T explained in the embodiment explained in FIG. 1 to FIG. 10, and the explanation thereof will be omitted.

[0105] As shown in FIG. 17 and FIG. 25, a connecting tool J made of a resin and connects two of the housing members T in a connecting direction (lay-out path) S. The connecting tool J has an approximately similar shape to the sectional shape of the housing member T when the opening of the housing member T is seen from the front, and includes a connecting cover body Jc and a connecting base body Jb each forming a semi-cylindrical shape. The connecting cover body Jc and the connecting base body Jb are assembled along a vertical direction Q. As shown in FIG. 25, the end portions of the corresponding housing members T are overlaid and held in each of the connecting ports 31 of the connecting tool J, whereby the two housing member...

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Abstract

A housing member for housing a long material includes a base and a cover. The base includes an opening extending along a longitudinal direction, and a plurality of convex portions arranged at predetermined pitches along a longitudinal direction. The cover covers the opening of the base. Each of the convex portions of the cover extends along a circumferential direction of the cover. The cover includes a plurality of convex portions provided at predetermined intervals along the longitudinal direction of the cover. The arranged pitch of the convex portions of the base and the arranged pitch of the convex portions of the cover are the same. When the cover is assembled to the base, the convex portion of the cover and the convex portion of the base are fitted to each other so as to overlay on each other.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a housing member for housing an elongate material, such as a wire material, optical cable, electric wire, and pipe material, for example, and its manufacturing method. DESCRIPTION OF RELATED ART [0002] Housing members are conventionally used to lay wire materials and pipe materials esthetically without impairing views or to protect such materials from wind and rain. However, in general, housing members are made of concrete or metal, and therefore are heavy in weight. Therefore, in order to reduce the weight, the housing members molded of a synthetic resin are sometimes used. Light housing members made of a resin have fewer burdens on transportation even when they are molded to be long, and there are a smaller number of connecting spots for the housing members at the time of a laying operation, thus enhancing the operation efficiency. As compared with housing members of concrete and metal, cutting work or the like is easi...

Claims

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Application Information

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IPC IPC(8): F16L3/26F16L11/11H02G3/04H02G3/32
CPCF16L3/26H02G3/32H02G3/0468
Inventor SHIMIZU, SHOHACHIKITAMURA, YUSUKE
Owner MIRAI KOGYO KK