JP3040506U

JP3040506U - Conduit that makes it easy to pull in electric wires

Info

Publication number: JP3040506U
Application number: JP1997001886U
Authority: JP
Inventors: 英一鈴木
Original assignee: 英一鈴木
Priority date: 1997-02-13
Filing date: 1997-02-13
Publication date: 1997-08-26
Anticipated expiration: 2003-02-13

Abstract

(57)【要約】【目的】従来、電気工事業界における配線工事で、電
線管内に電線を引き入れる際、電線管が長くかつ曲がり
があると、電線管内壁と電線の接触する面積が大きくな
り、摩擦が増す事によって、大きな力で引き入れなけれ
ばならなかった。電線管が長くかつ曲がりがあっても、
普通の力で電線間内に電線を引き入れる事が可能な電線
管の考案を目的とする。【構成】第１図に本考案に係る電線管を示す。電線管
の内壁に長さ方向全面に渡り半球を多数配置した形状
か、長さ方向の断面がＶ字形状、又は断面がＵ字形状で
螺旋状に巻回している。電線管内壁と電線の接触する面
積を減らし、摩擦を少なくして目的を達成した。 (57) [Abstract] [Purpose] Conventionally, in the wiring work in the electric construction industry, when the electric wire is drawn into the electric wire tube, if the electric wire tube is long and bent, the area of contact between the inner wall of the electric wire tube and the electric wire increases, Due to the increased friction, I had to pull in with great force. Even if the conduit is long and bent,
The purpose of the invention is to devise a conduit tube that can draw an electric wire between electric wires with normal force. [Structure] FIG. 1 shows a conduit according to the present invention. The inner wall of the conduit tube has a shape in which a large number of hemispheres are arranged over the entire surface in the length direction, or has a V-shaped cross section in the length direction or a U-shaped cross section and is wound in a spiral shape. The contact area between the inner wall of the conduit and the wire has been reduced to reduce friction and achieve the purpose.

Description

[Detailed description of the invention] [Industrial use range]

電気工事業界における配線工事で、電線管内に電線を引き入れる作業が簡単にでき、作業効率を上げる。 In wiring work in the electrical work industry, it is easy to pull wires into the conduit, improving work efficiency.

[Prior art]

従来から使用されている電線管の形状は、チューブ構造をしており、内壁は長さ方向全面に渡り、長さ方向の断面がフラット形状となっている。 The shape of the conduit that has been used conventionally is a tube structure, and the inner wall extends over the entire length, and the cross section in the length direction is flat.

[Problems to be solved by the device]

従来、電気工事業界における配線工事で配線管内に電線を引き入れる際、電線管が長くかつ曲がりがあると電線管内壁と電線の接触する面積が増し、摩擦が大きくなるため、大きな力でなければ、引き入れられなかった。 Conventionally, when a wire is drawn into a conduit during wiring work in the electrical construction industry, if the conduit is long and bent, the contact area between the inner wall of the conduit and the wire increases and friction increases. I wasn't drawn in.

[Means for Solving the Problems]

電線管の内壁に、長さ方向全面に渡り、半球を多数設置した形状か、長さ方向の断面がＶ字形状、又は断面Ｕ字形状を螺旋状に巻回した電線管を用いる事によって、電線管内壁と電線の接触する面積を、従来に比較して十分減少させる事により、摩擦を少なくして、配線工事における電線管内への電線の引き入れを簡単にする。 On the inner wall of the conduit, the shape of a large number of hemispheres installed over the entire surface in the length direction, or the conduit in which the cross section in the length direction is V-shaped or U-shaped in cross section is spirally wound. Therefore, the contact area between the inner wall of the conduit and the wire is sufficiently reduced compared to the conventional method, so that friction is reduced and the wire can be easily drawn into the conduit during wiring work.

[Brief description of the drawings]

【第１図】に本考案に係る電線管を示す。FIG. 1 shows a conduit according to the present invention.

【第２図】に従来から使用されている電線管を示す。第１図は第２図と違い、電線管の内壁が長さ方向に渡
り、半球を多数配置した形状か長さ方向の断面がＶ字形
状又は、断面がＵ字形状で螺旋状に巻回している。その
効果として、電線管内への電線の引き入れの際に、電線
管内部面と電線の間での接触面積が減少する。その結
果、配線工事における電線管内への電線の引き入れの力
が、従来の電線管に比較して小さくてすむ。FIG. 2 shows a conventionally used conduit tube. 1 is different from FIG. 2 in that the inner wall of the conduit extends in the lengthwise direction and a large number of hemispheres are arranged, or the section in the lengthwise direction is V-shaped or the section is U-shaped and spirally wound. ing. As a result, the contact area between the inner surface of the conduit and the electric wire is reduced when the electric wire is pulled into the electric conduit. As a result, the force for drawing the electric wire into the conduit during wiring work can be smaller than that of the conventional conduit.

Claims

[Utility model registration claims]

1. An inner wall of an electric conduit, characterized in that a large number of hemispheres are arranged over the entire surface in the lengthwise direction, or a V-shaped or U-shaped cross-section in the lengthwise direction is spirally wound. Conduit to do.