JPH0230227Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> This invention relates to a self-adjusting socket trench that can be used when tightening or loosening bolts or nuts located in deep parts.

<Conventional technology and its problems> Conventional socket trenches store sockets of various standards in a tool box, and when used, select the socket of the appropriate standard and fit it into the latch handle. However, this method is not only cumbersome to carry, but also causes confusion between the dimensions of two types of bolts and nuts, which are expressed in inches (inches) or millimeters (mm). It was not easy to find and use it unless you were a skilled worker, and it was sometimes lost during use. Furthermore, in the case of a monkey wrench, it is necessary to repeat the act of inserting and removing it each time the work is performed, which has the disadvantage of being time consuming. Furthermore, since conventional devices are generally flat, they cannot be used in deep locations. Although there are cylindrical wrenches that have a fixed length, these wrenches come in a plurality of different sizes, which causes inconveniences such as having to use different wrenches depending on the size of the bolt or nut.

<Means for Solving the Problems> Therefore, in order to solve the above-mentioned problems, the self-adjusting socket trench according to this invention has a left joint part 2 and a right joint part 2' having racks 1 and 1' formed on their upper parts. The moving rods 3, 3' are inserted into the moving grooves 4a of the actuating body 4, and a long hole 5 is formed in the actuating body 4, and a gear 7 for the chain tape 6 is installed in the central part of the long hole 5. The worm tube 10a has a worm tube 10a having a double worm 8, which has two worm gears facing each other with opposite gears on both sides. A large number of holes 6 are formed so as to mesh with the
A chain-shaped tape 6 with a hole in it is fitted to the gear 7, the protective cap 12 is fixed to the operating body 4, and the lower end of the pipe-shaped insertion tube 15 is connected to the protective cap 12. The chain tape 6 is passed through the insertion tube 15, and the hook 14 connected to one end of the chain tape 6 is arranged so as to slide through a long hole 16 provided on the outer peripheral surface of the insertion tube 15 in the axial direction. At the same time, the other end of the chain-shaped tape 6 is fixed to the operating lever 17 which is attached to the spring 19.
It is connected to the hook part 18a of the fixed hexagonal part 18 provided at the upper end of the insertion tube through the insertion tube, and when the actuating lever 17 is pulled so as to slide in the elongated hole 16, it is fixed to the actuating lever 17. The hook 14 also moves in the same way as the actuating lever 17, and therefore the chain tape 6 is also pulled, causing the gear 7 to rotate, and the double worm 8 to rotate, causing the racks 1 and 1' to engage with their respective worm gears. move in opposite directions, the distance between the left side coupling part 2 and the right side coupling part 2' increases, and when the operating lever 17 is released, the gear 7 rotates in the opposite direction due to the force of the spring 19, so that the left side coupling part 2' The distance between and the right joint part 2' narrows, and the bolt
It is designed to be able to freely adjust the size of the nut and to reach deep places.

<Example> Next, an example of the automatic adjustment socket trench according to this invention will be described based on the drawings. The moving rods 3, 3' of the left connecting part 2 and the right connecting part 2', which have racks 1, 1' formed on their upper parts, are inserted into the moving groove 4a in the lower part of the circular operating body 4. Further, 5 is a long hole formed in this actuating body 4, and 6 is a chain-like tape having a large number of holes 6a. This chain-like tape 6 is meshed with the gear 7, and
This gear 7 is formed on a worm tube 10a, and on both sides of the gear 7 on this worm tube 10a, a double worm 8 is formed in which two worm gears with gears facing in opposite directions are formed. It has been done. In this state, the double worm 8 is placed in the elongated hole 5 of the operating body 4, and the worm shaft 11 is fitted into the worm shaft support hole 9 and the shaft hole 10 to be movable. 1 and Rack 1' are meshed with each other. Next, the protective cap 12 is placed over the actuating body 4, fixed with bolts 13 and 13', and the lower end of the pipe-shaped insertion tube 15 is connected to the protective cap 12.
The chain-shaped tape 6 is passed through the insertion tube 15, and one end of the chain-shaped tape 6 is hung on the hook 14. It is fixed to the lever 17 with a bolt 13''.The other end of the chain tape 6 is connected to the fixed hexagonal part 18 provided at the upper end of the insertion tube 15 via a gear 7 and a spring 19.
It is connected to the hook portion 18a of.

<Function> To explain the function of this device configured in this way, as shown in FIGS. 2A and 2B, the insertion tube 15
When the operating lever 17 in the elongated hole 16 is grasped upward and pulled up, the hook 14 on which the chain-shaped tape 6 is hung on the inside is pulled upward, and when the chain-shaped tape 6 is pulled, the fixed hexagonal part 18 The spring 19 fixed to the hook portion 18a is stretched, and the chain tape 6 moves. At this time, the double worm 8 in the long hole 5 of the actuating body 4 is rotated by the rotation of the gear 7, and thereby the left joint portion 2
and the racks 1, 1' formed on the moving rods 3, 3' on the upper part of the right coupling part 2' are moved, and the left coupling part 2 and the right coupling part 2' are moved left and right along the moving groove 4a of the actuating body 4. It will be opened.

After opening the left and right joints 2, 2' in this way, align the clamping parts 2a, 2'a with the bolt or nut that you want to tighten or loosen, and release the operating lever 17 that you are holding. Therefore, while the chain tape 6 rotates in the opposite direction, the gear 7 fitted in the many holes 6a is moved to rotate the double worm 8, and the moving rods 3, 3' forming the racks 1, 1' are moved. The bolt or nut is fixed and clamped while tightening along the groove 4a.

After fixing in this way, insert socket trench 2.
0 to the fixed hexagonal part 18 at the upper part of the insertion tube 15 and rotate it in the direction to loosen or tighten it.

<Effects of the invention> As described above, according to the self-adjusting socket trench according to this invention, the movable rods 3, 3, 3, 3, 3, 4, 3, 3, 3, 4, 4, 4, 3, 3, 4, 4 in the left side joint part 2 and the right joint part 2', respectively, have racks 1, 1' formed on their upper parts.
3' is inserted into the movement groove 4a of the actuating body 4, and a long hole 5 is formed in the actuating body 4.
A worm that has a gear 7 for a chain-like tape 6 in the center thereof, and a double worm 8 on both sides of which two worm gears with opposing gears are provided. tube 10a
, each worm gear is connected to the rack 1,
A chain-shaped tape 6 with a large number of holes 6a is provided so as to mesh with the gear 7, and the protective cap 12 is fixed to the actuating body 4 to form a pipe-shaped tape. The lower end of the insertion tube 15 is connected to the protective cap 12, the chain-shaped tape 6 is passed through the insertion tube 15, and the hook 14 connected to one end of the chain-shaped tape 6 is provided on the outer peripheral surface of the insertion tube 15 in the axial direction. A hook portion 18a of a fixed hexagonal portion 18 is fixed to an operating lever 17 disposed so as to slide through the elongated hole 16, and the other end of the chain-shaped tape 6 is provided at the upper end of the insertion tube via a spring 19.
Since the clamping parts can be adjusted to different dimensions, there is no need to have sockets of various standards in the tool box, there is no risk of losing them, and it is short and easy to use. Bolts and nuts can be tightened or dismantled in a matter of minutes, making it easy to use and reducing work time. This has the effect of making it possible.

[Brief explanation of the drawing]

The drawings show an embodiment of the self-adjusting socket trench according to this invention, in which Fig. 1 is an exploded perspective view, and Fig. 2 is a vertical sectional view, of which A is a vertical sectional view showing the state before the actuation lever is actuated. Figures 3 and B are longitudinal cross-sectional views showing the state of the actuating lever after actuation, and Fig. 3 is a cross-sectional view showing part of the state of the clamping part, of which A is a longitudinal cross-sectional view showing the state before actuation, and B is a longitudinal cross-sectional view showing the state before actuation. FIG. 4 is a longitudinal sectional view showing the state after operation, and a perspective view showing the state of use. 1, 1'...Rack, 2...Left joint part, 2'...
... Right joint part, 2a, 2'a... Holding part, 3,
3'...Movement rod, 4...Operating body, 4a...Movement groove,
5, 16...Long hole, 6...Chain tape, 6
a...hole, 7...gear, 8...double worm,
9...Worm shaft support, 10...Shaft hole, 10a...
... Worm tube, 11 ... Worm shaft, 12 ... Protective cap, 13, 13', 13'' ... Bolt, 1
4... Hook, 15... Insertion tube, 17... Operating lever, 18... Fixed hexagonal part, 18a... Hook part, 19... Spring, 20... Socket trench.

Claims (1)

[Scope of utility model registration request] Left joint part 2 with racks 1 and 1' formed on the upper part
Insert the moving rods 3, 3' of the right side coupling part 2' into the moving grooves 4a of the actuating body 4, and form a long hole 5 in the actuating body 4, and insert a chain-shaped hole in the central part of the long hole 5. A worm tube 10a having a gear 7 for the tape 6, and a double worm 8 having two opposite worm gears on both sides of the worm tube 10a is connected to each worm gear. meshes with said racks 1 and 1',
A chain-shaped tape 6 having a large number of holes 6a is disposed in a state where it is fitted to the gear 7, a protective cap 12 is fixed to the actuating body 4, and the lower end of the pipe-shaped insertion tube 15 is connected to the protective cap. 12, the chain-shaped tape 6 is passed through the insertion tube 15, and the hook 14 connected to one end of the chain-shaped tape 6 slides through a long hole 16 provided on the outer peripheral surface of the insertion tube 15 in the axial direction. The automatic adjustment is fixed to an actuating lever 17 disposed in the insertion tube, and the other end of the chain-shaped tape 6 is connected via a spring 19 to a hook part 18a of a fixed hexagonal part 18 provided at the upper end of the insertion tube. socket trench.