JPH0231983Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a conductor connector for a conduit aerial cable.

(Prior art) Conventionally, in order to reduce as much as possible the conductor axial force caused by temperature rise, the conductor of the conduit aerial cable was
It is composed of multiple stranded wire conductors made by twisting together thin wires of 1.5 mm or less, and when an axial force is generated, the stranded wire conductor curls inside the storage tube so that the axial force can be absorbed. When connecting the stranded wire conductors of a conduit aerial cable configured in this way, conventionally, multiple stranded wire conductors were connected individually with crimp sleeves to prevent wire breakage, or the stranded wire conductors were The conductors were V-cut and individually welded and connected, but in the former case not only a large number of crimp sleeves were required, but
Since multiple stranded wire conductors must be crimped and connected individually, the crimping process takes a long time, and the outside diameter of the connection part becomes significantly large. Not only does the welding work require a lot of effort and a long time to make V-cuts and weld them individually, but it is also necessary to take special measures to prevent spatter during welding from entering the storage pipe. There were some problems.

(Structure of the present invention) The present invention was made with the aim of eliminating the above-mentioned drawbacks.The stranded conductor of the cable is inserted and crimped onto the outer peripheral surface of the shaft rod, which is made of conductive metal and protrudes from the plate surface of the flange. An inscribed sleeve having a plurality of semicircular grooves arranged vertically at predetermined intervals to be crimped, and a stranded wire conductor that is placed over the inscribed sleeve and has a plurality of semicircular grooves arranged vertically at predetermined intervals on its inner peripheral surface. It is characterized by comprising a circumscribed sleeve for crimping.

(Embodiment of the present invention) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. Multiple semicircular grooves 4 into which the stranded conductor of the cable is inserted and crimped.
The inscribed sleeve 5 is made of conductive metal and has a plurality of semicircular grooves 6 on its inner peripheral surface.
This is an external sleeve for crimping a stranded wire conductor, which has two halves or cuts formed by longitudinally disposing strands at predetermined intervals. A plurality of stranded wire conductors are separated and inserted, a circumferential sleeve 5 for conductor crimping is placed over the stranded conductors, and the circumferential sleeve 5 is crimped from the outer periphery to form a semicircle of the inner sleeve 1 as shown in FIG. The stranded wire conductor of the pipeline air cable inserted into the groove 4 is crimped and fixedly connected.
In addition, when using the external sleeve 5 for conductor crimping having the cut shown in FIG. After separating and inserting the stranded conductor of the conduit aerial cable into the semicircular groove 4 of the inner sleeve 1, the outer sleeve 5 for crimping the conductor is pulled over and covered with compression crimping from the outer periphery. do. Figure 4 shows a plurality of semicircular grooves 4, into which stranded wire conductors are inserted and crimped, placed vertically at predetermined intervals in shaft rods 3, 3 protruding from both sides of the plate surface of the flange 2 of the internal sleeve 1. The stranded wire conductors of the conduit aerial cables to be connected are separated and inserted into the semicircular grooves 4 vertically installed in the double axial rods 3, 3, respectively, and the stranded wire conductors are separately inserted and inserted into the double axial rods 3, 3. 3,3
A circumscribing sleeve 5 for crimping a stranded wire conductor having a plurality of semicircular grooves 6 arranged vertically at predetermined intervals on the inner circumferential surface is placed on top of the circumferential sleeve 5 and compressed from the outer periphery. FIG. 7 is an explanatory diagram showing another embodiment of the present invention in which the stranded conductors of both conduit aerial cables fitted into grooves 4 and 4 can be compressed and connected to each other. Fifth
Fig. 6 shows a plurality of strips in which shaft rods 3, 3 are protruded from both plate surfaces of the flange 2 of the internal sleeve 1, and a stranded conductor is inserted and crimped onto the outer peripheral surface of one shaft rod 3. vertically arranged semicircular grooves 4 at predetermined intervals, a plurality of stranded conductors of a pipeline aerial cable are separately inserted into the semicircular grooves 4, and a plurality of strips are placed on the inner circumferential surface. A circumscribing sleeve 5 for crimping a stranded wire conductor, in which semicircular grooves 6 are vertically arranged at predetermined intervals, is placed over the circumferential sleeve 5, and the circumscribing sleeve 5 is compressed and caulked from the outer periphery to crimp and connect the stranded conductor of the pipe air cable. A rigid pipe conductor 8 of a rigid type conduit aerial cable is connected to the other shaft rod 4 protruding from the plate surface of the section 2 via a connecting fitting 7.
FIG. 4 is an explanatory diagram showing another embodiment of the present invention configured to be slidably connected. In addition,
In Fig. 6, 9 is an externally corrugated sheath, 10 is an internally corrugated sheath, 11 is an external smooth sheath, 12 is a spacer,
13 is a shield, and 14 is a patch skin. According to the embodiments shown in FIGS. 5 and 6, the respective conductors of a flexible conduit aerial cable having stranded conductors and a rigid conduit aerial cable having a rigid pipe conductor can be connected very easily. be able to.

In addition, in each of the above embodiments, the internal sleeve 1
When the stranded wire conductor of the conduit aerial cable inserted into the semicircular groove 4 is compressed and crimped with the circumscribed sleeve 5 placed over it, there is a risk that the strands will break at the ends of both sleeves 1 and 5. If there is such a problem, it can be prevented by tapering the ends of both sleeves 1 and 5.

(Effects of the present invention) According to the present invention, a plurality of semicircular grooves 6 in which the stranded wire conductor is inserted and crimped onto the outer peripheral surface of the shaft rod 3 protruding from the plate surface of the collar portion 2 as described above. A stranded conductor of a conduit aerial cable is separated and inserted into the semicircular grooves 4 of the inscribed sleeve 1, which are vertically arranged at predetermined intervals. 6 were placed vertically at predetermined intervals and covered with a circumferential sleeve 5 for crimping a stranded wire conductor, and the circumferential sleeve 5 was compressed and crimped around its outer periphery, and then separately fitted into the semicircular groove 4 of the inner sleeve 1. Since it is configured so that the stranded wire conductors of the pipeline aerial cable can be crimped and crimped, the conductor connection of the pipeline aerial cable can be performed extremely easily, quickly and reliably, and it is possible to connect a large number of stranded wires as in the past. There is no need to use a crimp sleeve for connecting conductors, and there is no risk that spatters generated when connecting stranded conductors of aerial pipe cables by welding will enter the storage pipe. It has excellent advantages such as being able to connect the cable to a rigid type aerial cable.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view showing another embodiment of the external sleeve for crimping stranded wire conductors constituting the present invention, FIG. 3 is a cross-sectional view showing the stranded wire conductor connection state according to the present invention, and FIGS. FIG. 6 is a perspective view and a center line sectional view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Inner sleeve, 2... Flange, 3... Shaft rod, 4... Semicircular groove, 5... External sleeve for crimping stranded conductor, 6... Semicircular groove.

Claims (1)

[Scope of utility model registration request] an inscribed sleeve made of conductive metal and having a plurality of semicircular grooves vertically arranged at predetermined intervals on the outer peripheral surface of a shaft rod protruding from the plate surface of the flange, into which the stranded conductor of the cable is inserted and crimped; A conductor connector for a conduit aerial cable, comprising an external sleeve for crimping a stranded conductor, which is placed over the internal sleeve and has a plurality of semicircular grooves vertically arranged at predetermined intervals on the inner peripheral surface. .