JPS63310514A - Binding method for insulating wires - Google Patents

Abstract

PURPOSE:To bind insulating wires safely by bending a belt-formed thin plate into U-shape, inserting plural insulating wires inside the U-shape, and imposing a pressure to the wires from the opening side. CONSTITUTION:In a calking jig 3 which consists of an upper pattern 3a and the lower pattern 3b, a pressing rod 3a-1 buffed with a compressive spring 3a-2 inside the upper pattern 3a is arranged being hung at the center position of calking movable in the direction of the calking. By using a calking jig 3 which has recesses 3c in the form to calk a binding ring 1 in a ring form by combining the upper and the lower patterns 3a and 3b, and the binding ring 1, plural insulating wires are bound into a single line. Consequently, the pressing rod 3a-1 which is buffed by the compressive spring 3a-2 can impose a constant pressure to the insulating wires 2 in the process of calking until the U-shaped opening is closed, and the insulating wires 2 are prevented from pinching partially or swelling out.

Description

[Detailed Description of the Invention] [Summary] A method for bundling a plurality of coated insulated wires, which involves bending a strip-shaped thin plate into a U-shape, inserting a plurality of insulated wires,
By bundling the insulated wires while applying pressure from above, the insulated wires are prevented from being caught in the seam or sticking out.

[Industrial application field]

The present invention relates to an improved method for bundling a plurality of coated insulated wires.

When unraveling each insulated wire in a cable and connecting it to the terminal pin of a connector, tie the bases of the multiple unraveled insulated wires with a binding ring, and attach this binding ring to the connector to prevent direct external force from being applied to each insulated wire. It is fixed inside.

Therefore, there is a need for a method that can safely bind a plurality of unraveled insulated wires without fear of disconnection.

[Conventional technology]

Conventionally, as shown in the perspective view of FIG. 5, a binding ring 11 is made by bending a strip-shaped thin metal plate into a U-shape, bending the U-shape into a ring shape, and providing unevenness 11a so that the joints are engaged with each other.
As shown in the side sectional view of FIG. 7, the upper mold 13a and the lower mold 1
3b, and the upper and lower molds 13a, 13b are each provided with a plurality of recesses 13c, each having a shape that allows the binding ring 11 to be bent into a ring shape by combining the upper and lower molds 13a, 13b. This is a method of bundling insulated wires.

As shown in the perspective view of FIG. 6, the caulking work is carried out by combining a plurality of separate insulated wires 2 into one wire prior to the caulking work, wrapping them with a thin insulating tape 2a, and then attaching them to the side as shown in FIG. As shown in the cross-sectional view, the binding ring 11 is fitted into the recessed part placed on the lower mold 13b, and the upper mold 1 is pressed by pressing (the path shown in the figure).
3a is lowered in the direction of the arrow, pressure is applied to the binding ring 11, the U-shaped opening is closed, and caulking is performed.

FIG. 8 shows the state immediately before the completion of caulking, and FIG. 9 shows the state after the completion of caulking.

[Problems to be Solved by the Invention] However, according to the above-mentioned method, the apparent volume occupied by the plurality of insulated wires becomes smaller than the content of the binding ring when the wires are combined into one wire before crimping. When the binding ring is caulked into a ring shape, as shown in the cross-sectional view in Figure 10, the insulated wire may become caught between the unevenness on both ends, or a portion of the wire may protrude, resulting in defective caulking. There was such a problem.

The present invention provides a method for bundling insulated wires to solve the above problems.

[Means for solving problems]

The problem with the conventional shape is that a strip-shaped thin plate is bent into a U-shape, a plurality of insulated wires are fitted into the U-shaped recess, and pressure is constantly applied to the insulated wires from the U-shaped opening to open the opening. This problem can be solved by closing the insulated wires and tying the insulated wires together.

[Effect]

By applying pressure to the insulated wire through the U-shaped opening, the floating portion of the insulated wire is constantly suppressed and the opening is closed while reducing the apparent volume to the actual volume. It never sticks out.

〔Example〕

The gist of the present invention will be specifically explained below with reference to an embodiment shown in the drawings. In addition, in the drawings, the same reference numerals as the conventional one indicate the same parts or parts as the conventional one.

As shown in the perspective view of FIG. 1, a strip-shaped thin metal plate is bent into a U-shape, the U-shape is bent into a ring shape, and the presser 13a of the caulking jig 3 shown in FIG. As shown in the side cross-sectional view of FIG. A presser bar 3a-1 buffered by 3a-2 is vertically disposed movably in the crimping direction at the crimping center position, and a recess 3 has a shape that allows the binding ring 1 to be crimped into a ring shape by aligning the upper and lower molds 3a and 3b.
This is a method of bundling a plurality of insulated wires using a caulking jig 1, each of which is equipped with c.

The caulking work is carried out by fitting the tape-wrapped insulated wire 2 shown in FIG.

The side sectional view of FIG. 2 shows the crimping state using the crimping jig 3, the side sectional view of FIG. 3 shows the state immediately before crimping is completed, and the perspective view of FIG. 4 shows the state after crimping is completed.

The presser bar 3a-1, which is buffered by the compression spring 3a-2, can constantly apply pressure to the insulated wire 2 until the U-shaped opening is closed during the caulking operation, as shown in FIG. , part of the insulated wire will not be pinched or protruded.

Note that the above explanation assumes that each insulated wire in the cable is unraveled and tied together, but it can also be applied to the case where multiple single wires such as general insulated wires, such as vinyl-covered wires, are tied together. Needless to say, there is no problem.

〔Effect of the invention〕

As described above in detail, the method of the present invention exhibits the practically extremely useful effect of safely bundling a plurality of insulated wires without pinching any part of the wires.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a perspective view of one embodiment of the present invention, and Fig. 2 is a perspective view of an embodiment of the present invention.
Fig. 3 is a side sectional view showing the state immediately before the crimping shown in Fig. 2 is completed; Fig. 4 is a perspective view showing the state after crimping is completed in Fig. 3; Fig. 5 is a perspective view according to the prior art, FIG. 6 is a perspective view showing the taping state according to the prior art, FIG. 7 is a side sectional view showing the caulking state shown in FIG. 5, and FIG. 8 is the state immediately before the caulking is completed as shown in FIG. 9 is a perspective view showing the state after the caulking is completed as shown in FIG. 8, and FIG. 10 is a sectional view showing the state of defective caulking according to the prior art. In the figure, 1 is a binding ring, 1a is a notch, 2 is an insulated wire, 2a is an insulating tape, 3 is a caulking jig, 3a is an upper mold, 3a-1 is a presser bar, 3a-2 is a compression spring, 3b is a Lower mold, No. 28i! 1

Claims (1)

[Claims] An insulation characterized by bending a strip-shaped thin plate into a U-shape, fitting a plurality of insulated wires into the U-shaped recess, and bundling the insulated wires while applying pressure to the insulated wires from the U-shaped opening. How to tie wires.