JPH0626007Y2 - Connector tool switchable socket adapter - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) This invention is intended to be used in a connector tool for mounting bolt-type connectors or vise-type connectors for wire connection in work using indirect live-wiring tools such as high-voltage distribution lines. A socket adapter in which this is set, and the tightening portion of the connector is gripped and rotated to tighten, and the diameter of the gripping portion can be switched according to the diameter of the tightening portion Is.

(Prior Art) In a conventional copper wire connector tool (indirect live wire tool), a socket adapter is prepared for each size according to the diameter of the tightening portion of the connector.

Then, select a socket adapter according to the diameter (size) of the tightened part of the connector to be installed, set it in the connector tool, attach this connector tool to the tip of a rotary stick, etc. Hold by hand to grip the socket grip in the connector tool with the connector tightening part, rotate the center shaft of the rotary stick, and rotate the socket grip part in conjunction with this to rotate the socket grip to tighten the connector tightening part. Is to tighten.

(Problems to be solved by the invention) However, the size of the above-mentioned connector to be attached to an electric wire is large, which increases the types of socket adapters to be set in the above-mentioned connector tool, and the preparation and transportation of tools including these socket adapters. However, selection becomes complicated and the burden on the operator is increasing.

Therefore, the present invention solves the above problem by providing a socket in which the diameter of the grip portion can be switched according to the size of the tightening portion of the connector or the like.

(Means for Solving the Problem) According to the present invention, a socket outer tube is rotatably locked in an upper opening of a bottomed cylindrical socket case. For example, the outer peripheral edge of the lower end of the socket outer tube may be locked to the inner peripheral edge of the upper opening of the socket case. Several socket claws are axially supported at intervals along the inner circumference of this socket outer tube, and the axes of these socket claws are provided parallel to the axis of the socket outer tube.

A fitting groove for gripping the connector tightening portion is formed on the inner circumference of these socket claws. A disc body is integrally fixed to an upper end of a shaft body of a cam frame inserted into the socket case through a central hole of a bottom plate of the socket case, and the disc body and the socket outer tube can be fitted to each other. For example, a protrusion provided on the outer periphery of the disc body can be freely fitted into any of several grooves drilled at the lower end of the socket outer tube, and the disc body is always urged to press it against the outer periphery of the lower end of the socket outer tube. It may be equipped with an ammunition. On the upper surface of this disc body, several cams having different thicknesses are provided in the circumferential direction so as to intervene between the lower end of the outer periphery of each of the socket claws and the inner periphery of the outer socket of the socket to gradually change the interval between them. did. In addition, an inner tool pusher that extends to the upper central portion of the socket outer tube and has bifurcated free ends for gripping both sides of the body of the connector is rotatably provided at opposite positions on the outer circumference of the socket case. Is.

(Operation) Insert this socket adapter into the connector tool body, fix the socket case inside the tool body, and connect the shaft of the cam frame protruding from the bottom of the socket case to the rotary shaft inside the tool body to complete the setting. . Then, bring the connector tool body attached to the tip of the rotary stick etc. to near the connector attached to the electric wire,
Insert the connector's tightening part into the above-mentioned fitting groove of the socket adapter, and further rotate the inner tool pusher provided at the opposite position on the outer circumference of the socket case to extend each free end to the upper center part of the socket outer tube. , Grasp both sides of the body of the connector with the bifurcation of each free end. When the shaft body of the cam frame is rotated in conjunction, the cam frame and the socket outer tube rotate together. As a result, several socket claws also rotate while gripping the tightening portion of the connector, and the tightening portion of the connector is tightened.

When changing the diameter of the fitting groove formed on the inner circumference of the above several socket claws, hold the socket outer tube by hand and pull the cam frame shaft by hand to pull out the socket outer tube and cam frame. Then, the cam frame is rotated with respect to the socket outer tube, and the disk body of the cam frame is re-fitted to the socket outer tube. As a result, a cam portion having a different thickness is interposed between the inner circumference of the socket outer tube and the lower outer circumference of the free end of each socket claw, and the free end of each socket claw rotates inward from the socket outer tube. Positioned, the diameter of the fitting groove formed on the inner circumference of these socket claws is switched.

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

A socket case 1 having a wide cylindrical shape and having an upper opening 2 is provided, and an inner peripheral edge 2a of the upper opening 2 of the socket case 1 is locked with an outer peripheral edge 3a provided at its lower end. The pipe 3 is connected to the upper opening 2 of the socket case 1.
The socket outer tube 3 is rotatable relative to the socket case 1. A pair of bearings 4 are provided so as to project from the inner circumference of the socket outer tube 3 at three positions, and the socket claw pins 5 are attached to the bearings 4 of each pair, and one end of the socket claw 6 is fitted to the socket claw pins 5. I support you. The socket claw pin 5 is attached parallel to the axial direction of the socket outer tube 3.

FIG. 6 is a perspective view of the socket claw 6 seen from above, and FIG. 7 is a perspective view seen from below. Each of these socket claws 6 has, at one end, a shaft supporting portion 6a for supporting the socket claw pin 5 and is bent from this shaft supporting portion 6a to one side at a certain length, and to another portion at a certain length. It is bent to the side to form a free folding end 6b. The bending free end 6b has a portion projecting downward from the shaft supporting portion 6a. In addition, when the socket claw 6 is pivotally supported on the socket outer tube 3, an inner peripheral projecting edge 6d that horizontally protrudes is provided at a lower portion of the inner side surface 6c that is an inner side of the socket claw 6.

Therefore, when these socket claws 6 are pivotally supported on the socket outer tube 3, the inner side surface 6c of each socket claw 6 faces the center of the socket outer tube 3, and the inner peripheral projecting edges 6d are located on the same plane with each other. .

A disk body 8 of a cam frame 7 is rotatably inserted in the socket case 1, and a shaft body 9 hangs from the lower surface of the disk body 8 below the socket case 1. Cams having protrusions 11, 11 horizontally projecting from opposite side edges of the disk body 8 and having outer surfaces along the outer peripheral edges at three positions spaced apart from the outer peripheral edge of the upper surface of the disk body 8. 12, 1
Two cams 12 and 12 project from each other, and each of these cams 12 has inner surfaces 12a, 12b, 12c having different thicknesses arranged side by side in the circumferential direction. Each of these cams 12 can be inserted into the lower part of the inner peripheral surface of the socket outer tube 3, and at that time, the free end 6b of each socket claw 6 is located at a lower end face 6e (first end) located below the shaft supporting part 6a. The inner surface 12 of each cam 12 is shown in FIG.
One of a, 12b, 12c hits.

Further, a hollow hole 13 is provided from the upper surface in the center of the disk body 8 and the shaft body 9 of the cam frame 7, and a shaft hole 14 is bored to the lower end surface of the shaft body 9 following the hollow hole 13. An annular spring case 15 having a central hole 10 is fixed to the lower end of the socket case 1, and a spring 16 is interposed between the upper surface of the spring case 15 and the lower surface of the disc body 8. This spring 16 is always the cam frame 7
The disk body 8 is pushed upward, so that the protrusions 11 on both sides of the disk body 8 are fitted into one of the three grooves 17 provided on both sides of the lower end of the socket outer tube 3. ing. In addition, a pair of bearing bodies 18 are provided at four outer sides of the socket case 1, respectively, and one end of a middle tool pusher 20 is axially supported by a pin 19 of each pair of the bearing bodies 18. Two pushers 20 are located facing each other, and their free ends 20a extend to the upper central portion of the socket outer tube 3 and are bifurcated. In addition, each of these middle tool pushes 2
The bottom plate of the bearing body 18 of No. 0 is a spring plate 21 that presses the end portion of each of the inner tool pushers 20.

In the case of this embodiment, first, the position of the socket claw 6 of this socket adapter is adjusted according to the diameter of the bolt head of the connector to be attached to the electric wire or the like. To do this, hold the outer socket tube 3 with one hand and pull the shaft 9 of the cam frame 7 against the force of the spring 16 with the other hand. As a result, the projections 11 projecting from the disk body 8 of the cam frame 7 are disengaged from the grooves 17 on both sides of the socket outer tube 3, and together with this, the three cams 12 projecting from the upper surface of the disk body 8 of the cam frame 7.
Also comes off from the lower part of the inner circumference of the socket outer tube 3. The cam frame 7 is free with respect to the socket outer tube 3 and is rotatable. Therefore, the cam frame 7 is rotated to align the positions of the protrusions 11 of the cam frame 7 with the other grooves 17 on both sides, and the cam frame 7 is released. 17 above-mentioned each projection 1
1, the socket outer tube 3 and the cam frame 7 are integrated. Each cam 12 of the cam frame 7 is interposed between the inner circumference of the socket outer tube 3 and the lower end surface of the free bending end 6b of the socket claw 6. FIG. 9 shows that the thinnest inner surface 12a of each cam 12 is the inner circumference of the socket outer tube 3 and the free end of bending of the socket claw 6.
FIG. 10 shows the case where they are interposed between the lower end faces of 6b. FIG. 10 shows the middle thickness inner surface 12b of each cam 12, and FIG. 11 shows each cam 12
Shows the case where the thickest inner surface 12c of each of them is interposed. In this way, three grooves 17 are formed on each side of the lower end of the socket outer tube 3.
Depending on which of the two, the projection 11 of the cam frame 7 is fitted, a portion where the thickness of the cam 12 is different is interposed between the inner periphery of the socket outer tube 3 and the lower end surface of the bending free end 6b of the socket claw 6. At that time, each socket claw 6 is rotated around the socket claw pin 5 to be positioned inward. A spring (not shown) may be provided on the shaft support portion of each socket claw 6 so that the bendable free end 6b of each socket claw 6 can be lightly pressed against the inner peripheral surface of the socket outer tube 3 at all times. . As a result, the free end 6b of the socket claw 6 is fixed to the inner surface 12 of each cam 12.
Always pressed against a, 12b, or 12c.

In this way, the diameter of the fitting groove formed on the inner side surfaces 6c of several socket claws 6 is matched with the diameter of the bolt head of the above connector, and one of the two pairs of inner tool presses 20 is selected. Then, the other pair of inner tool pushers 20 is pushed down, this socket adapter is put into the connector tool body (not shown), the socket case 1 is fixed in the tool body, and the shaft body 9 of the cam frame 7 is fixed to the tool body. Connect to the inner shaft. Then, this connector tool main body is attached to the tip of a rotary stick (not shown) and brought close to the connector, and as shown in FIG. 8, the connector main body 22 is grasped by the free ends 20a of the pair of projecting inner tool pushers 20, 20. Then, the bolt head 23 of the connector is fitted into the fitting groove formed by the inner side surfaces 6c of the several socket claws 6. At this time, the inner peripheral projecting edge 6d of each socket claw 6 locks the outer surface of the bolt head 23 of the connector. When the center shaft of the rotary stick is driven to rotate, the shaft body 9 of the socket adapter rotates via the shaft in the connector tool body, and this rotation causes the cam frame 7 and the socket outer tube 3 to rotate integrally. , Connector bolt head 2
3 is gripped by each socket claw 6, rotates, and is fastened to the connector body 22.

In the above embodiment, three socket claws 6 are provided, but the number is not limited to this, and a suitable number may be provided. Further, the fitting of the disk body 8 of the socket outer tube 3 and the cam frame 7 is not limited to that of the above-mentioned embodiment, but the fitting and the detachment can be made by an appropriate means. Further, the present invention can be applied not only as an indirect live-line tool as described above but also as a tip active tool in various robots.

(Effect of device) This device has the above-mentioned structure, and the inner circumference of the socket outer tube,
Cams with side surfaces having different thicknesses are respectively interposed between the outer periphery of the lower end of the tip of each of several socket claws that grip the tightening portion of the connector, and the cam frame having these cams and the socket outer tube Can be fitted and removed freely, and the diameter of the fitting groove formed by several socket claws can be adjusted by switching the thickness of the cam according to the size of the tightening portion of the connector. Therefore, if this socket adapter is prepared, it is possible to tighten connectors of various kinds of diameters, and it is complicated to prepare, transport, store, and select a large number of socket adapters of different sizes as in the past. The work is eliminated, and the work of attaching the connector is labor-saving.

Further, in this invention, when the connector is tightened, the tightening portion is rotated while gripping the connector body at the free end of the pair of inner tool pushes, so that the rotating load is not applied to the electric wire or the like to which the connector is attached, It does not damage the wires.

[Brief description of drawings]

1 is a plan view of the present invention, FIG. 2 is a bottom view thereof, FIG. 3 is a front view thereof, FIG. 4 is a longitudinal sectional view thereof, and FIG. 5 is an exploded view of a socket outer tube and a cam frame of the present invention. FIG. 6 is a perspective view of the socket claw of the present invention, FIG. 7 is a bottom perspective view of the same, and FIG. 8 is an explanatory perspective view showing a state in which the bolt head of the connector is tightened according to the present invention. 11 to 11 are explanatory views showing a state in which the present invention is fitted to bolt heads having different diameters. In the figure, 1 is a socket case, 2 is an upper opening, 3 is a socket outer tube, 6 is a socket claw, 7 is a cam frame, 8 is a disk body, 9 is a shaft body, 11 is a protrusion, 12 is a cam, 17 Is a groove, 22 is a connector, and 23 is a bolt head.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 999999999 Kayo Denki Kogyo Co., Ltd. 2-1, 6 Hamamatsucho, Minato-ku, Tokyo (72) Inventor Tomio Obata 5-2-1, Ebara, Shinagawa-ku, Tokyo Stocks Company Saneisha Works (72) Inventor Kaoru Tadaka 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyo Electric Power Company (72) Inventor Hiroshi Kaneo 4-83-3 Shibaura, Minato-ku, Tokyo KANDENKO Co., Ltd. (72) Inventor Keiji Yoshitomi 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Line Co., Ltd. (72) Inventor Heizaburo Uryu 2-6 Hamamatsucho, Minato-ku, Tokyo Stock Market Shakayo Electric Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A socket outer tube is rotatably locked in an upper opening of a bottomed cylindrical socket case, and several socket claws are spaced along the inner circumference of the socket outer tube. It is rotatably supported in parallel with the axis of the outer tube, and a fitting groove is formed on the inner circumference of these socket claws to hold the tightening part of the connector, and it is freely rotatable in the socket case from the center hole of the bottom plate of the socket case. The disk body provided on the upper end of the shaft body of the inserted cam frame and the socket outer tube can be fitted freely, and the upper surface of the disk body of the cam frame can be fitted to the lower outer periphery of the free end of each socket claw and the socket outer tube. A cam is provided so as to change the distance between them in a stepwise manner so as to intervene between them and has a bifurcated free end that extends to the upper central portion of the socket outer tube and grips both sides of the body of the connector. Press the tool on the outer circumference of the socket case. Characterized by providing rotatably relative position, the connector tool switchable socket adapter.