JPH0668985B2 - Processing method of cable terminal with connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The outer sheath of the cable end is removed, the exposed core wire is covered with a heat-shrinkable tube, and only one end of the heat-shrinkable tube is heated to be heat-cured. The remaining part of the cable retains its flexibility while being uncured, and the connector is mounted on the heat-shrinkable tube of the heat-cured part to improve workability and secure the connector securely. A method is disclosed.

[Industrial application field]

The present invention relates to a cable terminal processing method, and more particularly to a terminal processing method for fixing a connector to a cable terminal.

In a communication device or the like, a cable is connected to a rack device that accommodates a large number of printed boards. In this case, the jacket of the cable end is removed by a certain length, the inner core wire is separated into a plurality of bundles, the core wire is protected and the connector is fixed to the tip while maintaining flexibility for each bundle. Combine with the connector of the printed board to be connected. In the terminal treatment of such a cable with a connector, it is desirable to securely fix the connector to the end portion of the cable and to perform the treatment work efficiently and in a short time.

[Conventional technology]

FIG. 3 shows a structure of a cable end formed by a conventional method of processing a cable end with a connector. Cable 1
Is composed of a core wire 2 and a jacket 3. Cable 1
The outer sheath removing portion at the end of is covered with a spiral tube 4 for core wire protection. A heat-shrinkable tube 5 is attached to the end of the spiral tube 4 to fix the spiral tube 4, and the whole heat-shrinkable tube 5 is heated to shrink and heat-set. The protective tape 6 is placed on the heat-cured heat-shrinkable tube 5.
Is wound. The fixing metal fitting 8 is fastened and fixed on the protective tape 6 by the fixing band 7. The connector 9 is composed of a pair of upper and lower mold bodies (the vertical direction is the vertical direction in the drawing), and one bent end portion of the fixing metal fitting 8 is sandwiched between the root portions 10 of the upper and lower mold bodies. Is clamped between both connector molds and screwed through the screw hole 11.

FIG. 4 shows a conventional structure in which a plurality of connectors 9 are attached to the end of one cable 1. The outer sheath 3 at the end of the cable 1 is removed, the inner core wire is divided into a plurality (three in this example), each is covered with a spiral tube 4, and the connector 9 is attached in the same manner as in the example of FIG. A protective tape 12 is wound around the roots of the three branch core wires.

[Problems to be solved by the invention]

In the above-mentioned conventional cable terminal processing method, there are cases where space is restricted when the cable for winding the spiral tube around the cable core swells and is bundled into a plurality of cables. Further, since the connector is clamped from above the spiral tube, the tightening force for the core wire is weak and the cable may come off the connector. In addition, since a spiral tube is wound around the core wire, a heat shrinkable tube is mounted on the core tube, and a protective tape is wound around the core wire, there are many work steps, which makes the terminal processing operation troublesome and is not preferable in terms of cost.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object thereof is to provide a processing method of a cable terminal with a connector, which enables easy and efficient processing of the cable terminal and can reliably clamp the connector to the cable. To do.

[Means for solving problems]

In order to achieve the above-mentioned object, in the present invention, in a processing method of a cable terminal with a connector in which a connector is attached to an end portion of a cable consisting of a core wire and an outer sheath, a sheath of a cable end portion is removed by a predetermined length, The core wire of the jacket removal portion is covered with a heat-shrinkable tube, only one end of the heat-shrinkable tube is heated to be heat-cured, and the remaining heat-shrinkable tube is left uncured to retain flexibility, and the heat-cured Provided is a method of processing a cable end with a connector, characterized by mounting a connector on a shrinkable tube.

[Work]

The entire core wire of the jacket removing portion is covered with a heat shrinkable tube. The heat-shrinkable tube is heated only at the connector mounting portion at one end thereof to be heat-cured, and the remaining portion remains uncured and remains flexible to achieve a core wire protecting function and a cable distributing function by flexibility.

〔Example〕

FIG. 1 is a block diagram of a cable terminal processed by the method of the present invention. The jacket 3 of the cable 1 is removed by a predetermined required length, and the heat shrinkable tube 14 is mounted on the core wire 2. Only the end portion of the heat-shrinkable tube 14 is heated and heat-shrinks and is fixed on the core wire 2 to form a heat-cured portion 14a. The remaining portion of the heat-shrinkable tube 14 is not heated and is left as an uncured flexible portion 14b to protect the core wire 2 and allow free movement of the cable to smoothly perform the cable distribution work. Protective tape 6 on the thermosetting part 14a of the heat shrink tube 14
Wrap around. The fixing bracket 8 is fixed on the protective tape 6 by the fixing band 7. The connector 9 is attached to the end of the cable via the fixing metal fitting 8. Reference numeral 13 is a screw for clamping the fixing member 8 from above and below with the connector 9 and then tightening and fixing.

FIG. 2 shows a plurality of core wires 2 of the cable 1 (four in this example).
Shown below is a configuration in which the connector is divided into two and a plurality of connectors are attached.
A protective tape 16 is wound around the root of the branched core wire. The mounting structure of each connector 9 is the same as the structure shown in FIG.

〔The invention's effect〕

As described above, in the present invention, the entire exposed core wire is covered with a heat-shrinkable tube without using a spiral tube, and only the heat-shrinkable tube of the connector mounting portion is heat-cured and the remaining portion is uncured and remains flexible. , And the connector is clamped and attached to the thermosetting part. Therefore, since the heat-shrinkable tube of the connector mounting portion is securely fixed to the core wire, the tightening force of the connector with respect to the core wire is increased and the connector is securely fixed to the cable end portion. Further, since it is not necessary to wind the spiral tube as in the conventional case, the number of working steps is reduced, and the cable end processing operation can be easily performed in a short time. The heat-shrinkable tube is flexible in the uncured state, the length can be easily adjusted, and the versatility with respect to the thickness of the cable and the length of the terminal processing part is large, so the terminal processing work can be done efficiently and smoothly. Done.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a block diagram of another embodiment of the present invention, FIG. 3 is a block diagram of a conventional cable end portion, and FIG. 4 is a conventional cable end portion. It is a block diagram of another example. 1 ... Cable, 2 ... Core wire, 3 ... Outer sheath, 9 ... Connector, 14 ... Heat shrink tube, 14a ... Thermosetting part, 14b ... Flexible part.

Claims (2)

[Claims] 1. A method of processing a cable terminal with a connector, wherein a connector (9) is attached to the end of a cable (1) consisting of a core wire (2) and a jacket (3), and the jacket of the cable end is predetermined. Remove only the length, cover the core wire of the jacket removal part with a heat shrink tube (14), heat only one end of the heat shrink tube to heat cure, and the remaining heat shrink tube is uncured and flexible And a connector (9) is mounted on the heat-cured heat-shrinkable tube, and a method of processing a cable end with a connector. 2. A protective tape (6) is wound around the heat-cured heat-shrinkable tube, and a connector (9) is mounted on the protective tape via a fixing band (7) and a fixing metal fitting (8). A processing method of a cable terminal with a connector according to claim 1, wherein: