JPH0722048Y2 - Electric wire sleeve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a structure of a sleeve for electric wires, for example, a sleeve for restoring a edging wire by an uninterruptible construction method.

(Prior Art) A cylindrical jumper sleeve a as shown in FIG. 6 or a branch sleeve b as shown in FIG. 7 is provided for connecting the electric wire cutting portion as shown in FIG. In the case of the cylindrical jumper sleeve a, one electric wire c is easily passed as shown in FIG. 9, but the other electric wire c ′ is retracted by bending the electric wire c ′ once, and then inserted into the sleeve a. Had to insert. In particular, when the length of the electric wire such as a edging wire is short, the rigidity of the electric wire is high and it may be difficult to bend, and this work was not easy. Further, in the case of the branch sleeve b, the addition line d (Fig. 10) is required.

Further, since the sleeve e having a C-shaped cross section as shown in FIG. 11 allows the electric wire to be inserted through the opening f, the connecting work is easy. However, when the C-shaped sleeve is compressed and connected a plurality of times, the elongation amount in the longitudinal direction is different between the A side and the B side in FIG. 12, so that there is a problem that the sleeve e is bent as shown in FIG. .

(Problem to be solved by the invention) An object of the present invention is to provide an electric wire sleeve in which the electric wire can be easily inserted when connecting the electric wire with the sleeve and the connecting portion is not bent even after the connection.

(Means for Solving the Problems) A wire sleeve has a C-shaped cross section, has a wire insertion port 2 on one side in the longitudinal direction, and one or a plurality of longitudinal grooves on the opposite side of the wire insertion port 2. 3 and the electric wire sleeve 1 for electric wire
After being inserted along the electric wire insertion port 2, the plurality of positions are compressed and connected from the direction substantially orthogonal to the electric wire insertion port 2 and the longitudinal groove 3.

(Example) In FIGS. 1-2, the code | symbol 1 is a sleeve for electric wires. The electric wire sleeve 1 has a C-shaped cross section, and has an electric wire insertion port 2 opening in the longitudinal direction at a side portion thereof, through which an electric wire can be inserted. Reference numeral 3 denotes a longitudinal groove provided on the side opposite to the electric wire insertion port 2 in parallel with the axis of the electric wire sleeve 1. When the electric wire is compressed by this and the electric wire is connected, the electric wire opened due to the existence of the longitudinal groove 3 The amount of expansion with the insertion port 2 side is made substantially uniform, and bending in the longitudinal direction at the connection portion of the wire sleeve 1 can be prevented. 4 is positioned by inserting the ends of the left and right electric wires against the center pin provided in the central portion when inserting. In addition, 5 shows a single swaging width (compression width) by die compression.

FIG. 3 shows an example in which a plurality of longitudinal grooves 3 (three in the figure) are provided. As a result, the amount of expansion on the side of the wire insertion port 2 is made more uniform, and bending after compression can be prevented even if compressed multiple times.

In the case of FIG. 4 and FIG. 5, the wire insertion port 2 is not continuous in the longitudinal direction, and the central portion has an elliptical cross section. Since the tip of the electric wire is inserted into this elliptical section, the electric wire is less likely to come off.

(Effect) The cross section of the wire sleeve 1 is C-shaped and the wire insertion port 2 is provided on the side.
Since the electric wire can be inserted from a position parallel to the insertion opening 2 of the electric wire sleeve 1, the electric wire can be easily inserted and the workability is further improved.

Further, since the longitudinal groove 3 is provided on the side opposite to the wire insertion port 2, when the wire is connected by compressing the wire sleeve 1 multiple times with a die from the direction orthogonal to these, the wire insertion port 2
Side and the longitudinal recessed groove 3 side both sides are made uniform in the amount of extension, and the electric wire sleeve can be prevented from bending.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention. FIG. 2 is a right side view of FIG. FIG. 3 shows an embodiment having a plurality of slits. FIG. 4 shows a sleeve in which the central portion has a round cross section and the both sides have a C-shaped cross section in the first embodiment. FIG. 5 is a right side view of FIG. 6 and 7 are perspective views of a known sleeve. FIG. 8 shows a cut electric wire, and FIG. 9 shows a state in which the jumper sleeve of FIG.
The figure shows a state in which an attempt is made to connect using the branch sleeve of FIG. FIG. 11 shows a known sleeve having a C-shaped cross section, and FIG. 12 shows a curved state of the sleeve when connected by a C-shaped cross section. In the figure; 1 ... Sleeve for electric wire, 2 ... Electric wire insertion slot 3 ... Groove in longitudinal direction, 4 ... Center top 5 ... Caulking width, 6 ... Central hole

Claims (1)

[Scope of utility model registration request] 1. A C-shaped cross section having an electric wire insertion port (2) on one side in the longitudinal direction, and one or more longitudinal grooves (3) on the opposite side of the electric wire insertion port (2). Provided, the electric wire is inserted along the electric wire insertion opening (2) of the electric wire sleeve (1), and then compressed and connected at a plurality of positions in a direction substantially orthogonal to the electric wire insertion opening (2) and the longitudinal groove (3). A sleeve for electric wires characterized by: