JP2534723Y2 - L-shaped terminal extraction tool - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an L-shaped terminal extraction tool suitable for extracting an L-shaped terminal called a load break elbow connected to an electric device, for example, a ground transformer, from the ground transformer. Things.

[0002]

2. Description of the Related Art FIG. 5 shows an example of the structure of an L-type terminal 1. The cable 2 connected to the L-shaped terminal 1 is stripped off at its end to form a cable sheath 3.
, The cable shielding layer 4, the cable insulating layer 5, and the cable conductor 6 are sequentially exposed. A ground wire 8 is connected to the exposed cable shielding layer 4 via an end seal adapter 7.
Is connected. In the exposed cable insulation layer 5,
The spacer 9 is fitted. The compression terminal 10 is compression-connected to the exposed cable conductor 6. A pin contact 11 is screwed to the distal end of the compression terminal 10 in an orthogonal direction so as to form an L shape. The distal ends of these spacers 9 and the compression terminals 1 which are assembled to form an L-shape
0, the inner conductive layer 1 over the base of the pin contact 11
2 are provided in an L-shape. An L-shaped insulating layer 13 is provided over the base side of the spacer 9, the inner conductive layer 12, and the tip of the pin contact 11, and an outer conductive layer 14 is provided on the outer periphery thereof in an L-shape. . The external conductive layer 14 is also connected to the ground line 8 via a ground line 15 and a bolt type connector 16. A hook locking portion 17 is provided on the external conductive layer 14 so as to form a loop so as to be located on the rear side of the pin contact 11. A detection terminal 18 is provided adjacent to the hook locking portion 17 and separated from the external conductive layer 14. A power detection cover 19 is provided so as to cover the tip of the power detection terminal 18.

FIG. 6 shows an example of a conventional L-shaped terminal extracting tool 20 used for extracting the L-shaped terminal 1 as described above. That is, the conventional L-shaped terminal extraction tool 20
Has a structure in which a hook 22 is attached to the tip of a handle 21.

Conventionally, such an L-shaped end extraction tool 2
The L-shaped terminal 1 was pulled out by hooking the hook 22 of No. 0 on the hook engaging portion 17 of the L-shaped terminal 1 and grasping and pulling the handle 21. If it does not come off, 2-3
The L-shaped terminal 1 was pulled out by a person.

[0005]

However, an L-shaped terminal 1 using such a conventional L-shaped terminal extracting tool 20 as described above.
When the L-shaped terminal 1 comes off, there is a problem that the worker easily falls down later when the L-shaped terminal 1 comes off because the pull-out of the L-shaped terminal 1 has to be performed with the strength of the arm.

There is a problem that a large working space is required adjacent to the place where the L-shaped terminal 1 is attached due to such a pulling operation.

[0007] An object of the present invention is to provide an L-shaped terminal drawing tool that can easily pull out an L-shaped terminal.

[0008]

The configuration of the present invention for achieving the above object will be described. An L-shaped terminal extracting tool according to the present invention is an L-shaped terminal fitting portion for fitting an L-shaped terminal to be extracted. A contact portion is provided at the tip of the body for contacting a device to which the L-shaped terminal is connected, and the body cannot rotate, but can rotate back and forth. The linear motion converter is supported, and the rotary motion
The linear motion converter is connected and supported with a hook to be hooked to the hook locking portion of the L-shaped terminal, and the body has a threaded end screwed to the rotary motion / linear motion converter and an intermediate portion. The body is provided with a rotating shaft that is rotatable but not movable back and forth, and a rotating handle is provided at a base end of the rotating shaft protruding out of the body. I do.

[0009]

The L-type end pulling tool is an L-shaped terminal drawing tool.
The mold terminal fitting portion is fitted to the L-shaped terminal, and the hook is locked to the hook locking portion of the L-shaped terminal. In this state, when the rotating handle is turned in a certain direction, the rotational force is converted into a rectilinear motion by a rotary motion / linear motion converter, whereby the L-shaped terminal is pulled via a hook, and the L-shaped terminal is pulled. The mobile terminal is pulled out of electrical equipment such as a ground transformer.

Therefore, according to the L-shaped terminal extracting tool of the present invention, the L-shaped terminal can be easily pulled out simply by turning the rotating handle. For this reason, according to the present invention, there is an advantage that a large work space is not required adjacent to the mounting position of the L-shaped terminal.

[0011]

1 to 4 show an embodiment of an L-shaped end drawing tool 20 according to the present invention. L of the present embodiment
The mold end extraction tool 20 includes a cylindrical body 24 having an L-shaped end fitting portion 23 for fitting the L-shaped end 1 to be extracted as described above. An opening 25 is provided on the lower surface of the body 24 for fitting the L-shaped terminal 1 to the L-shaped terminal fitting portion 23. The body 24 is formed of metal.

At the tip of the body 24, there is provided a contact portion 26 for contacting a device (not shown) to which the L-type terminal 1 is connected. The contact portion 26 is formed of plastic or the like so as not to damage the electric device during operation.

The body 24 supports a rotary motion / linear motion converter 27 which cannot rotate but can move back and forth. The rotary motion / linear motion converter 27 includes a body 24.
A long hole 28 provided along the longitudinal direction on both left and right sides of the
A slide pin 29 having both ends fitted in these elongated holes 28 and sliding back and forth, and a clevis 30 in which a forked portion 30 a is fitted in the center of the slide pin 29. A screw hole 31 is formed in the base of the clevis 30.

Such a rotary / linear motion converter 27
The fork part 30a of the clevis 30 is
In between, the base of the hook 32 is rotatably fitted and connected and supported. The hook 32 is for locking the hook locking portion 17 of the L-shaped terminal 1. The hook 32 is urged by a spring 33 fitted to the slide pin 29 so as not to come off the hook locking portion 17. A tapered surface 32a is provided on the distal end side of the hook 32 for sliding the hook 32 when the hook 32 is moved to the left in FIG. The hook 32 is a hook engaging portion 1 of the L-shaped terminal 1.
In order to confirm that it has been locked to
4 has been opened.

On the base end side of the body 24, an intermediate portion of a rotating shaft 35 is supported by the body 24 so as to be rotatable but not to move back and forth. That is, a small diameter portion 35a is provided at an intermediate portion of the rotating shaft 35, and the small diameter portion 35a is rotatably supported by a flange portion 36 of the body 24.
By being gripped from both sides by the set collar 37 fitted to the small diameter portion 35a, the rotating shaft 35 is rotatable by the body 24, but is supported so as not to move back and forth.

The tip of the rotating shaft 35 is a screw portion 35b. The screw portion 35a of the rotating shaft 35 is a clevis 3
0 is screwed into the screw hole 31. Thus, the rotary motion / linear motion converter 27 is supplied with forward and reverse rotation inputs from the rotation shaft 35.

A rotation handle 38 for rotating the rotation shaft 35 in the forward and reverse directions is provided at the base end of the rotation shaft 35 protruding outside the body 24.

Such an L-shaped terminal extraction tool 20 fits the L-shaped terminal fitting portion 23 of the body 24 to the L-shaped terminal 1,
For example, by turning the rotation handle 38 in the forward direction,
The linear motion converter 27 converts the forward rotational motion into a linear forward motion, and moves the hook 32 forward to lock the hook 32 on the hook locking portion 17 of the L-shaped terminal 1. At this time, if the hook 32 hits the hook locking portion 17 during the forward movement, the hook 32 escapes one end outward against the bias of the spring 33,
When the hole of the hook locking portion 17 faces the claw of the hook locking portion 17, the bias of the spring 33 causes the hook of the hook locking portion 17 to enter the hole of the hook locking portion 17 to be locked. .

In this state, when the rotating handle 38 is turned, for example, in the opposite direction, the rotating motion is converted into a linear retreating motion by the rotary motion / linear motion converter 27, whereby the L-shaped terminal 1 is connected via the hook 32. Is pulled out, and the L-type terminal 1 is pulled out of an electric device such as a ground transformer.

Therefore, such an L-shaped end extraction tool 2
According to 0, the L-shaped terminal 1 can be easily pulled out simply by turning the rotation handle 38. For this reason,
According to the L-shaped terminal extracting tool 20, a large work space is not required adjacent to the mounting position of the L-shaped terminal 1.

[0021]

As described above, according to the L-shaped terminal extracting tool according to the present invention, the L-shaped terminal fitting portion of the body is fitted to the L-shaped terminal, and the L-shaped terminal is engaged with the hook locking portion of the L-shaped terminal. The hook is locked, and in this state, the rotation handle is turned in a certain direction, and the rotational force is converted into a rectilinear motion by a rotary motion / linear motion converter, whereby the L-shaped terminal is pulled through the hook. Therefore, the L-shaped terminal can be easily pulled out from an electric device such as a ground transformer. According to the L-shaped terminal extracting tool for pulling out the L-shaped terminal by turning the handle in this way, even one worker can easily pull out the L-shaped terminal, and the L-shaped terminal can be easily removed from the mounting position of the L-shaped terminal. And does not require a large work space.

[Brief description of the drawings]

FIG. 1 is a partial vertical longitudinal side view of an embodiment of an L-shaped end extraction tool according to the present invention.

FIG. 2 is a horizontal vertical sectional side view of the L-shaped end drawing tool shown in FIG.

FIG. 3 is a sectional view taken along line XX of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a vertical sectional side view showing an example of an L-type terminal.

FIG. 6 is a side view of a conventional L-shaped end extraction tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 L-type terminal 11 Pin contact 14 Outer conductive layer 17 Hook latching part 20 L-type terminal extraction tool 23 L-type terminal fitting part 24 Body 25 Opening 26 Contact part 27 Rotational / linear motion converter 28 Slot 29 Slide pin 30 Clevis 30a Bifurcated part 31 Screw hole 32 Hook 32a Tapered surface 33 Spring 34 Window 35 Rotation axis 35a Small diameter part 35b Screw part 36 Flange part 37 Set collar 38 Rotation handle

Claims (1)

(57) [Scope of request for utility model registration] 1. A body having an L-shaped terminal fitting portion for fitting an L-shaped terminal to be withdrawn, and a contact portion for contacting a device to which the L-shaped terminal is connected is provided at a tip of the body. A rotation / linear motion converter is supported on the body so that it cannot rotate but can move back and forth, and the rotary / linear motion converter is engaged with a hook engaging portion of the L-shaped terminal. A hook for stopping was connected and supported, a threaded portion at the tip was screwed to the rotary motion / linear motion conversion tool, and an intermediate portion was supported by the body so that it could rotate but could not move back and forth. An L-shaped end extraction tool, wherein a rotation shaft is provided, and a rotation handle is provided at a base end of the rotation shaft protruding out of the body.