JPS6337578A - Terminal treatment for coaxial cable - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a coaxial cable terminal processing method in which a heat-shrinkable tube is fitted to the terminal portion of the coaxial cable, and the tube is heated and shrunk to insulate the shield wire.

(Prior Art) A coaxial cable is formed by covering a coated core wire with a shield wire, which is further covered with a jacket. In order to connect this coaxial cable to other electrical components, the outer jacket of the terminal is stripped to expose the core wire and shield wire. However, if the shield wire is left in this exposed state, a portion of the shield wire that is not necessary for connection is usually exposed, and therefore, it is necessary to cover this portion with an insulating material and insulate it.

FIGS. 2(a), 2(b), and 2(C) are perspective views illustrating an example of a conventional terminal processing method for coaxial cables. First, the second
As shown in Figure 2(a), the outer sheath 2 of the coaxial cable 1 is stripped to expose the core wire 3 and shielded wire 4, and a heat shrink tube 6 is fitted to the end portion 11. As shown, the heat-shrinkable tube 6 is first fitted and moved to the main body portion 12 covered with the jacket 2, and then the heat-shrinkable tube 7 is fitted onto the shield wire 4 separated from the core wire 3. In this state, the heat-shrinkable tube 7 is heated and shrunk. Finally, as shown in FIG. 2(c), the aforementioned heat-shrinkable tube 6 is returned, and with the three parts of the main body 12, core wire 3, and heat-shrinkable tube 7 housed inside, the end is heated and shrunk. Processing completes.

(Problem) As mentioned above, in the conventional terminal processing method, if the heat shrinking treatment of the heat shrink tube is incomplete, the heat shrink tube may shift from the predetermined position and no longer function as an insulator. This also affected the reliability of the electrical equipment itself.

Furthermore, at least two heat shrink tubes are required, so
It is necessary to cut the heat-shrinkable tubes according to the required number of tubes, and also requires a lot of construction work such as fitting the tubes. As a result, work efficiency was reduced and costs were increased.

(Means for Solving the Problems) The present invention has been devised to solve the above problems.

That is, a notch is provided in the middle of the heat-shrinkable tube, and the heat-shrinkable tube is fitted onto the end of the coaxial cable whose outer sheath has been peeled off to expose the core wire and shield wire. In this step, the core wire is pulled out from the notch. The end of the coaxial cable is treated by heating and shrinking the heat shrink tube with the main body of the coaxial cable and the shield wire housed in the heat shrink tube.

(Function) According to the above method, the heat-shrinkable tube with a notch in the middle can reliably insulate and hold the shield wire while separating the core wire and the shield wire at the end. .

(Example) An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1(a), 1(b), and 1(C) are perspective views illustrating an example of a coaxial cable terminal processing method according to the present invention. First, as shown in Fig. 1(a), the terminal part 1 of the coaxial cable l is
In step 1, the outer jacket 2 is peeled off to expose the core wire 3 and the shield wire 4, and a heat shrink tube 5 is fitted. At this time, the heat-shrinkable tube 5 is pre-prepared to a length necessary and sufficient to cover the shielded wire 4 of the terminal portion 11 and the main body portion 12 covered with the outer sheath 2, and to allow the tip of the shielded wire 4 to slightly protrude. Further, a notch 51 is provided in the middle of the heat-shrinkable tube 5 for passing the core wire 3 through.

The construction of the terminal processing method of the present invention in the above configuration will be explained.

First, as shown in FIGS. 1(a) and 1(b), attach the heat shrink tube 5 to the end of the coaxial cable 1. ! s11 and pull out the core wire 3 from the notch 51, and the shield wire 4 and the main body part 12 are housed in the heat shrink tube 5. Also, place the end of the shield wire 4 so that it slightly protrudes from the heat shrink tube 5.
Adjust.

Next, heat shrink tube 5 is heated using a dryer or the like. Then, the heat-shrinkable tube 5 is shrunk with the core wire 3 and the shield wire 4 separated, and the end of the coaxial cable 1 is processed as shown in FIG. 1(C).

That is, the core wire 3 and the shield wire 4 are completely separated by the heat-shrinkable tube 5, and the core [3] of the shield wire 4 is completely separated by the heat-shrink tube 5.
The portion close to the shield wire 4 is covered with the heat shrink tube 5, and the shield wire 4 is held together with the coaxial cable 1 by the heat shrink tube 5.

(Effects) As described above, according to the terminal processing method of the present invention,
Even if the heat-shrinking treatment of the heat-shrinkable tube is incomplete, the ends will not shift from the specified position and lose their insulation properties, unlike conventional terminal processing methods, and in other words, the terminals will not be processed reliably. This improves the reliability of the electrical equipment itself. Moreover, since the construction method is simple, the labor rate is good.

Furthermore, since only one piece of heat-shrinkable tube is required as a material, costs can be reduced.

[Brief explanation of the drawing]

FIGS. 1(a), (b), and (c) are perspective views illustrating an example of the coaxial cable terminal processing method according to the present invention. FIGS. 2(a), (b), and (C) are coaxial cables. FIG. 2 is a perspective view illustrating an example of a conventional cable terminal processing method. l... Coaxial cable, 11... Terminal section. 12--Main part, 2--Outer cover, 3--Core wire. 4... Shield wire, 5... Heat shrink tube. 51... Notch. Agent Patent Attorney Kuninori Funabashi Figure 1 (Q) (b) (C) (α) Figure 2 (b) (C)

Claims (1)

[Claims] (1) A method of processing the end of a coaxial cable by fitting a heat-shrinkable tube to the end of the coaxial cable whose jacket has been stripped to expose the core wire and shielded wire, the method comprising a notch provided in the middle of the heat-shrinkable tube. After pulling out the core wire from the coaxial cable, the main body of the coaxial cable and the shield wire are housed in the heat shrink tube, and the heat shrink tube is heated to shrink, thereby insulating the shield wire. terminal processing method.