JPS6082009A - How to connect and grip non-circular wires - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Aspects 1 and 1 of the Invention] Electric wires normally have a circular cross section. Therefore, accessories and tools for holding, connecting, or clamping the electric wire also have a circular cross section on the inner surface that comes into contact with the electric wire.

However, in recent years, many special electric wires have been developed that are expected to have special effects, such as low noise electric wires, low wind pressure electric wires, low vibration electric wires, low corona electric wires, and anti-snow electric wires. Electric wires with non-circular cross-sections have been proposed as shown.

In other words, both Figures 1 and 2 were developed for the purpose of low noise and low wind pressure vibration.
In order to disturb the periodicity of the air fluid flowing around the first
In the case of the figure, a stepped surface 10a is formed by 11 small wires l and large wires 2.

10b is formed, and in FIG. 2, a missing portion 20 is formed by cutting out the strands of the stranded wire of the layer (FIG. 2).

Even if the electric wire 10 or 10' having such a cross-sectional shape is gripped by the conventional retaining clamp having a circular inner surface or by a reclamp having a connecting sleeve crimped, the crimping or gripping effect cannot be achieved sufficiently because of the concave portion on the outer peripheral surface. In addition, the electrical characteristics between the wire and the accessory become insufficient. Therefore, it is necessary to prepare accessories with special shapes, which significantly increases the labor and economic burden.

The present invention is intended to provide a connection or gripping method for the non-circular electric wire that allows conventionally used products and tools to be used as they are.

[Summary of the invention]

The gist of the present invention is to attach an auxiliary IJJ member that can be filled into a concave portion of an electric wire having a stepped surface, and to form an outer circumferential surface formed by the auxiliary IJJ member and the electric wire into a circular cross section. The purpose of this method is to attach a joining member having a circular inner surface to the formed circular cross-sectional part, thereby making it possible to use a conventional general-purpose item or tool.

〔Example〕

Preformed auxiliary part I4'3 used in the invention
An example of 0 is shown in FIG. In this case, although it is shown as being attached to an electric wire having a shape as shown in Boxes 1 and 2, the shape can of course be selected as appropriate depending on the shape of the electric wire. The thickness of the auxiliary member 30 is approximately equal to the difference between the stepped surfaces 10a and 10b in the electric wire 10, and its width is approximately equal to 11 of the lower stepped surface 10a.

FIG. 4 is an explanatory view showing a case where a connection sleeve 40 is crimped onto the electric wire 10 shown in FIG. 1 without the auxiliary member 30 shown in FIG. 3 attached thereto.

Since the auxiliary member 30 is filled in the stepped surface 10a, which was a concave portion of the electric wire 10, the entire surface has a circular cross section, the inner surface of the connecting sleeve 40 is tightly compressed as a whole, and no voids are formed. The connection is complete both physically and electrically.

〔Effect of the invention〕

As described above, according to the present invention, even a special-shaped electric wire can be used for a conventional circular cross-section electric wire by simply preparing an auxiliary member such as a preform F lot that is easy to manufacture and easy to attach. Eleven general-purpose accessories and tools can be used as they are, and the benefits are great.

[Brief explanation of drawings]

1 and 2 are cross-sectional views showing examples of non-circular electric wires, FIG. 3 is a sketch showing an example of the auxiliary member according to the present invention, and FIG.
The figure is an explanatory view showing how the connection sleeve is crimped by the method according to the present invention. 10.10': Non-circular electric wire, 10a, 10b: Step surface, 20: Wire missing part, 30:
Auxiliary part $4.40 = connection sleeve. Continued on page 51 Minor inventor Takashi Kawakami 355 Hatachi, Kidayo-cho, Tsuchiura City Inventor Kenji Yamasui Hitachi Ichikawa n1500I Minor inventor Takashi Yamazaki 150 Hatachi, Kawajiri-cho, Hitachi City Hitachi Cable Co., Ltd. Metal Research Tokoroga Electric Cable Co., Ltd. Toyoura Factory Inside Keden Cable Co., Ltd. Toyoura Factory

Claims (1)

[Claims] (1) When connecting or gripping an electric wire that has a stepped surface on its outer circumferential surface, an auxiliary member that can be filled into the recessed part of the electric wire is attached so that the outer circumferential surface formed by the electric wire and the auxiliary member has a circular cross section. A method for connecting and holding a non-circular electric wire, in which a connecting member having a circular inner surface is fixedly attached to the circular cross-section.