JPH077868U - Deep socket tool - Google Patents

Abstract

(57) [Abstract] [Purpose] This invention always holds a washer such as a plain washer or a spring washer together with a nut so that the nut can be tightened quickly, reliably and smoothly. The present invention provides a deep socket tool that can be used. [Structure] A washer-holding socket member 2 having a magnet 3 is internally provided at an upper end of a substantially cylindrical holder-1.
In order to fit the socket member 2, a nut holding deep socket body 6 having a required length is inserted from a lower end portion of the holder -1 via a biasing member 8 so as to be vertically movable. By fitting and holding the required washers 58a and 58b and the nut 57 on the socket member 2 and the deep socket body 6, respectively, the deep socket body 6 is fitted on the socket member 2 and rotated upward. Tighten the required fastening bolts 59.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deep socket tool used for tightening a nut to a required tightening bolt.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, for example, a deep socket tool provided with an insulating operating rod of a required length is known as a nut tightening tool used for performing an indirect live work of an overhead power distribution line. Further, such a deep socket tool is said to indirectly perform a required indirect live work such as tightening a nut to a required fastening bolt through an operating rod and attaching a pin insulator. However, while such a conventional deep socket tool can securely perform the nut tightening work with respect to the fastening bolt, it does not have a means for holding a washer such as a flat washer or a spring washer that is required when tightening the nut. No measures have been taken at all, and because of the unstable working environment at high places, when tightening the nut, the work of attaching the washer to the fastening bolt is very troublesome and troublesome, and the frequency of dropping Is very high, especially in the case of fastening bolts located laterally or obliquely.

As a solution to such a conventional problem, a deep socket tool shown in FIG. 4 is disclosed, which will be described with reference to FIG. That is, in the figure, 51 is a nut holding deep socket main body having a required length, and 52 is a required length of insulating property connected to the lower end of the deep socket main body 51 via a universal joint 53. An operating rod, 54 is a spring material fitted in the universal joint 53, and 55 is a plate magnet with a nut insertion hole 56 attached to the tip end surface of the deep socket body 51. In addition, 57 is a nut, 58a is a plain washer, 58b is a spring washer, and 59 is a required fastening bolt.

In the conventional example configured as described above, the nut 57 is fitted and held in the deep socket body 51, and the flat washer 58a and the spring washer 58b are magnetically held on the magnet 55 corresponding to the nut 57. (See Figure 4). Then, the operation socket 52 is used to rotate the deep socket main body 51, and the nut 57 is screwed while fitting the flat washer 58a and the spring washer 58b to the fastening bolt 59 to perform the tightening work.

[0005]

[Problems to be solved by the device]

 In the above conventional example, while the flat washer 58a and the spring washer 58b are magnetically held together with the nut 57 in the deep socket body 51, the nut 57 can be tightened smoothly and efficiently, while the flat washer 58a is Since the spring washer 58b and the spring washer 58b are merely magnetically held by the magnet 55, the holding is insufficient and unstable. Since the magnetic sticking position is likely to be displaced or fall due to contact, there is a drawback that reliable tightening work is difficult.

This invention solves the conventional problems all at once and always holds the washer such as the flat washer 58a and the spring washer 58b together with the nut 57, so that the nut 57 can be tightened quickly and surely. Moreover, it is intended to provide a practical deep socket tool that can be smoothly operated.

[0007]

[Means for Solving the Problems]

 That is, according to this invention, a washer-holding socket member 2 having a magnet 3 is internally provided on an upper end portion of a substantially cylindrical holder-1 and a lower end portion of the holder-1 is fitted to the socket member 2 so as to be fitted therein. A nut holding deep socket main body 6 having a required length is vertically movably inserted through an urging member 8, and required washers 58a and 58b are respectively attached to the socket member 2 and the deep socket main body 6. While the nut 57 and the nut 57 are fitted and held, the deep socket body 6 is fitted to the socket member 2 and is rotated upward to be tightened to the required fastening bolt 59.

[0008]

[Action]

 A nut 57 is fitted and held in the deep socket body 6 and a washer such as a flat washer 58a and a spring washer 58b is fitted in the socket member 2 and magnetically held by the magnet 3. After that, the washers 58a and 58b are fitted to the required fastening bolts 59 through the insulating operation rod 52 and the like, and the deep socket body 6 is rotated against the urging blade 8 while operating vertically. The nut 57 is screwed onto the fastening bolt 59 to perform the tightening work.

[0009]

【Example】

 An embodiment of the present invention shown in the drawings will be described below. Reference numeral 1 is a cylindrical holder having a required height, 2 is a washer holding socket member provided at an upper end of the holder 1, and 3 is provided along the inner peripheral surface of the socket member 2 at predetermined intervals. The magnet 4 is a required number of guide bars vertically provided on the lower end surface of the socket member 2, and 5 is a stopper formed at the lower end portion of each guide bar-4. The lower end surface is supposed to be located at substantially the same level as the lower end surface of the holder-1. 6 is a deep socket main body of a required length which is vertically movably inserted from the lower end of the holder-1 so as to be fitted into the socket member 2, and 7 is the deep socket main body 6 along the guide bar-4. A guide plate 8 is attached to the deep socket body 6 to move it vertically, and a compression spring 8 is fitted to the guide bar 4 so as to constantly urge the guide plate 7 downward. At the time of the bottom dead center of the guide plate 7, a part of the tip of the deep socket body 6 is fitted into the socket member 2, and at the same time the dead center of the guide socket 7 slightly protrudes from the upper end surface of the socket member 2. The movable width of the guide plate 7 is set appropriately. The other parts are the same as in the conventional example, and the same reference numerals indicate the same parts.

Next, the operation of the embodiment configured as described above will be described. First, the guide plate 7 is positioned at the bottom dead center by the urging force of the compression spring 8, the nut 57 is fitted and held in the deep socket body 6, and a washer, for example, a flat washer, is placed in the socket member 2. 58a and spring washers 58b are fitted and magnetically held by the magnet 3 (see FIG. 3). Then, the washers 58a and 58b are fitted to the fastening bolts 59 while operating with the insulating operating rod 52. At this time, the washers 58a and 58b are fitted to the socket member 2 and magnetically held, so that the holding is sufficient, and there is no possibility of slipping or falling when hitting an object. After the fitting of the washers 58a and 58b is completed, the nut 57 is applied to the tip of the fastening bolt 59 and the operation socket 52 is used to operate the deep socket body 6 upward against the bias of the compression spring 8. Rotate and screw the nut 57 onto the fastening bolt 59. Then, when the guide plate 7 reaches the top dead center, the rotation operation of the deep socket body 6 is stopped, and the tightening of the nut 57 is completed.

Although the deep socket tool shown in the above embodiment is supposed to have the operation rod 52 attached to it so as to be applied to the indirect live work of the overhead power distribution line, it is not limited to this. Instead, it can be applied as a general bolt / nut tightening tool by attaching a required handle or the like instead of the operation rod 52.

[0012]

[Effect of device]

 Since the present invention is constructed as described above, the nut 57 is fitted and held in the deep socket body 2, and the washer such as the flat washer 58a and the spring washer 58b is fitted in the socket member 2 so as to be magnetized. After holding it magnetically to No. 3, fit washers 58a and 58b to the required fastening bolts 59 via the operating rod 52, and move the deep socket body 6 up and down against the biasing spring 8. By rotating it while rotating it, the nut 57 can be screwed into the fastening bolt 59 to perform the tightening work, and the washer such as the flat washer 58a and the spring washer 58b is always securely held together with the nut 57. In this state, the nut 57 can be tightened not only in the upward direction but also diagonally or laterally, quickly, reliably, and smoothly.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a vertical sectional view showing the same usage state.

FIG. 4 is a vertical cross-sectional view showing a usage state of a conventional example.

FIG. 5 is a cross-sectional view showing the operating rod 52.

[Explanation of symbols]

 1 Holder-2 Socket Member 3 Magnet 6 Deep Socket Main Body 8 Compression Spring 52 Operation Rod 57 Nut 58a Plain Washer 58b Spring Washer 59 Fastening Bolt

Claims (1)

[Scope of utility model registration request] 1. A washer-holding socket member 2 having a magnet 3 is internally provided at an upper end portion of a substantially cylindrical holder-1 and is required from a lower end portion of the holder-1 to be fitted into the socket member 2. A long nut holding deep socket main body 6 is vertically movably inserted and attached via an urging member 8.
Required by fitting and holding the required washers 58a, 58b and the nut 57 on the socket member 2 and the deep socket body 6, respectively, while fitting the deep socket body 6 on the socket member 2 and rotating it upward. A deep socket tool configured to be fastened to the fastening bolt 59.