JPS6321765A - Conductor for multi-circuit branch body - 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 (Industrial Application Field) This invention provides a multi-circuit branch body in which a rod-shaped connecting conductor is skewered with a plurality of branch bodies each having a multipolar ring drive contact provided on the inner periphery of one through hole. It is related to conductors for use. □ (Prior Art) Some multi-circuit branch bodies have one end of a plurality of branch bodies attached to a rod-shaped connecting conductor to form a skewer shape, and branch cables are led out from each of these branch bodies.

When attempting to maintain the insulation of each of these branch bodies at short surface distances, a method is used to pressurize the creeping surfaces.

These pressures are applied by forming a tightening part using bolts and nuts provided outside the branch body or the connecting conductor, and by tightening the tightening part, pressure is applied to the creeping surface (contact surface) of the insulating part of each of the plurality of branch bodies.

(Problem to be solved by the invention) However, this method of providing the tightening part externally has the disadvantage that it cannot withstand long-term use due to the large structure and rusting of the bolts. Accordingly, the present invention provides a conductor for a multi-circuit branch body, in which a spring is provided inside the conductor, and the insulating creeping surface of each branch body is pressurized by the spring.

The specific structure of the present invention is to slidably insert a mandrel protruding from the inside of the female cap into a hole bored in one end surface of a rod-shaped connecting conductor, and apply a force that constantly draws the mandrel into the hole. A biasing spring spring is provided in the hole, a multipolar ring drive contact is provided on the inner periphery of the through hole, and the connection is made to each of the through holes of a plurality of branch bodies having a connecting portion for connecting a branch cable at one end. This is a multi-circuit branch conductor in which each contactor is brought into contact with a connecting conductor through a conductor, and a male cap is screwed onto the other end of the connecting conductor by pressing the female cage and the branch bodies together.

(Function) The female cap is urged inward into the connecting conductor by a spring spring provided in the hole of the mandrel, and the male cap is screwed and fastened to the other end of the connecting conductor. Therefore, the plurality of branched arrows covered around the outer periphery of the connecting conductor between the female cap and the male cap are held between the female cap and the male cap, and the insulating creeping surface of each branch is pressure-welded. are doing. Moreover, since each branch body has one end pivotably attached to the outer periphery of the connection conductor, each branch body can be rotated and fixed at a desired position.

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

1 is a rod-shaped connecting conductor, 2 is a cylindrical hole bored in one end surface of this connecting conductor 1, 3 is a mandrel slidably inserted into this hole 2, and 7 langes 4 are attached to one end of this mandrel 3. is attached with screws 5. 6 is a flange fitted on the outer periphery of the other end of this mandrel 3; 7 is a spring spring provided on the outer periphery of the mandrel 3 between this flange 6 and the 7 flange 4; 8 is a spring spring fitted from both opposite sides of one end of the connecting conductor 1; These screws 8 are screwed into the wire holes 9, and these screws 8 lock the outside of the flange 6. As a result, the mandrel 3 is urged toward the inner part of the hole 2 by the force of the spring spring 7. 10 is a screw hole drilled in the end face of the mandrel 3 on the open end side of the hole 2; 11 is a substantially disk-shaped fixing washer; a screw 12 is passed through the center hole of the fixing washer 11; Screws 13 are passed through several holes drilled at regular intervals, and these screws 13 are in the opposite direction to the screws 12. Reference numeral 14 denotes push-button seats and metal protrusions provided at intervals on the outer periphery of the fixed washer 11, excluding the 13 screws.
When the screw 12 is screwed into the screw hole 10 of the mandrel 3 and the fixed washer 11 is brought into contact with the end of the mandrel 3, the press washer 14 avoids the head of the screw 80 and projects to the outer periphery of the connecting conductor 1. 15
is a fixture having a recessed portion 15 m on one side, and this recessed portion 15
Drill a groove 16 in the center of the bottom of a, and insert several screw holes 1 around it.
7, fit the fixing washer 11 into this recess 15a, insert the head of the screw 12 into @16, screw each screw 13 into the screw hole 17, and fix the fixing metal fitting 5 to the fixing washer 11. This is what I did. Reference numeral 18 denotes an insulating layer integrally molded around the outer periphery of the fixture 15, and this outer periphery is sequentially covered with a conductive layer 19 and a shield outer covering made of a rigid metal or the like.

21 are these shield outer coverings, a conductive layer 19, and an insulating layer 1.
8. A female cap consisting of a fixing fitting 15 and a fixing washer 11, and this female cap 21 has its recess 20 as described above.
A connecting conductor 1 is made to protrude from approximately the center. n is an annular projection protruding from the shield outer cover at the top of this female cap 21, B is a pin protruding from both sides of the outer circumference of this annular projection n, and 24 is an insulating layer 18 inside the annular projection n. This conductive layer is not in contact with the conductive layer 19 and is exposed to the outside inside the annular protrusion n.

Reference numeral 5 denotes a conductive cap made of conductive rubber that covers the annular protrusion n, and key-shaped locks are provided on both sides of the conductive cap 50.
25 a, cover the annular protrusion ρ, and attach the pin n
When the conductive cap 6 is inserted into this locking groove 25a and the conductive cap δ is turned, the conductive cap 6 is locked to this annular protrusion n. 25
b is a string connecting the conductive cap 5 and the female cap 21. 5 is a male cap that is screwed onto the outer threaded portion 5 of the other end of the connecting conductor 1, and this male cap n is a nut metal fitting having an inner threaded portion. A shield jacket 31 made of a conductive layer and a rigid metal or the like is sequentially provided on the outer circumferential surface of the shield. It should be noted that on the outer top of this male character 7'27 (032 having 1 nut m27a) is a branched body that is crowned with many skewers on this connecting conductor 1,
This is a compressed conductor of each branch body 32, and this compressed conductor has a through hole 34 at one end and a compression hole at the other end. The male member is a multi-polar ring drive contactor inserted into the above-mentioned through hole A, and this contactor I has a large number of contact pieces 38 arranged in a ring shape around the outer periphery of the support tube 37, and the outer end between these contact pieces is The support tube 37 is made to protrude outward, and a spring band 39 is provided on the outer periphery of each of these contact pieces, and retaining rings are provided at both open ends of the through hole to prevent the contacts from coming off from the through hole. There are 40. 41 is the core wire 4 inside the compression hole.
The branch cable 42 is an insulating layer provided on the outer periphery of the compressed conductor, and this insulating layer 42 reaches the end of the branch cable 41 and is integrally molded with these. The insulating layer 42 has a concave portion 4 on the opening side of the through-hole, which has a tapered inner periphery toward the periphery of the opening.
3, and on the other side of the opening, a convex portion is formed, which has a hole having approximately the same diameter as the through hole from the periphery of the opening, and has a tapered outer periphery at the tip. 45 is the branch cable 41 mentioned above.
A spacer provided between the outer periphery of the end and the inner periphery of the insulating layer 42, 46 a conductive layer provided on the outer periphery of the insulating layer 42 excluding the recess 43 and the convex shrine, 47 a conductive layer 46 at the end of the branch cable 41
A semi-conductive tape is wound from the end, 48 is a grounding wire connected to this semi-conductive tape 47, and 49 is the semi-conductive tape 4
Waterproof tubes 7 are placed over the outer periphery, and 50 is a presser tape wrapped around the upper and lower ends of these waterproof tubes 49.

Reference numeral 54 designates a connection portion cover provided on the outer periphery of the joint portion of each branch body 32.

This embodiment has the above-mentioned configuration, and as shown in FIG.
are mated and this branch body! The convex part 44 of the next adjacent branch body 32 fits into the concave part of the opening, and in this way, the adjacent branch bodies 32 come into close contact with each other, and the male cap n forms a proverbial branch body with a flat end. It fits into the recess 43. When the male cap M is tightened, the female cap 21 at the other end is biased against the inside of the connecting conductor 1, and the fitting portions are pressurized by the caps 21 and n on both sides, and are brought into closer contact.

In the above embodiment, the method of inserting the mandrel 3 provided with the spring spring 7 into the hole 2 of the connecting conductor 1 was explained using FIG. The spring 7' is made of a memory alloy and its shape under certain conditions is memorized, and the spring 7' is deformed and wound around the outer periphery of the mandrel 3 as shown in FIG. 7(A). There is also a method of inserting the spring 7 into the hole 2 and returning the spring 7 to its original shape inside the hole 2, as shown in Figure WJ7 (b).

In addition, since the large number of branch bodies 32 are rotatably supported on the outer periphery of the connecting conductor 1, as shown in Fig. 1 and Fig. WFJq,
Each branch 32 can be at any angle. Among these, the one in FIG. 7 has each branched body proverb mounted on and supported by a number of rods 52 spread between both side plates 510.
FIG. 1O is a plan view thereof.

(Effects of the Invention) The present invention has the above configuration, and the outer periphery of the connecting conductor between the female cap and the male cap is Since the insulation creeping surfaces of the plurality of crowned branch books are pressurized, normal insulation strength is always maintained. Furthermore, since this spring spring is inserted inside the connecting conductor, it is not affected by current, voltage, or wind and rain, so the characteristics of the spring spring are maintained well over a long period of time. Since each branch body is pivotally supported by the rod-shaped connecting conductor, each branch body can be positioned at any angle.

[Brief explanation of the drawing]

Fig. 1 is a partially cross-sectional side view of the present invention, and Figs. 2 (a), middle), and (c) respectively show that a mandrel wrapped with a spring spring is inserted into the hole of the connecting conductor of the present invention, and a fixing washer is inserted. An explanatory diagram showing the procedure for attaching the fixing fittings, FIG. 3 is a partially sectional side view showing the connecting conductor, female cap, and male cap of the present invention, and FIG. 3 is a sectional view taken along the line A-A in FIG. Fig. 5 is a partially sectional side view of the branch body of the present invention, Fig. 6 is a partially sectional side view of the compressed conductor of the branch body of the present invention, and Fig. 7 (A).
, (b) are explanatory diagrams showing other embodiments in which a mandrel around which a spring spring is wound is inserted into the hole of the connecting conductor of this invention, FIG. J is a front view showing the state of use of this invention, and FIG. 9 1 is a front view showing another state of use of the invention, and FIG. 1O is a plan view thereof. In the figure, 1 is a connecting conductor, 2 is a hole, 3 is a mandrel, 7 is a spring spring, 11 is a fixing washer, 15 is a fixing metal fitting, 21 is a female cap, 5 is a conductive cap, n is a male cap, 3
2 is a branched body, A is a through hole, I is a multipolar ring drive contact, 41
is a branch cable. Patent applicant: Saneisha Manufacturing Co., Ltd.
'n'j'・1,; Figure 2 (If Figure 7

Claims (1)

[Claims] A mandrel protruding from the inside of the female cap is slidably inserted into a hole bored in one end surface of the rod-shaped connection conductor, and a spring spring is inserted into the hole to apply a force that constantly draws the mandrel into the hole. Passing the connecting conductor through the through-hole of a plurality of branch bodies having a multipolar ring drive contact on the inner periphery of the through-hole and having a connecting part for connecting a branch cable at one end, and connecting each contact to a connecting conductor. 1. A conductor for a multi-circuit branch body, characterized in that the conductor is brought into contact and branched into each branch body, and a male cap is screwed onto the other end of the connecting conductor by pressing the female cap and each branch body into pressure contact with each other.