JPH0226623Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention allows adjustment of the clamping part to match the size of the object to be clamped (bolts, nuts, etc.) within the main body without using a socket. This invention relates to a self-adjusting socket trench.

[Conventional technology and its problems]

Conventionally, socket trenches have been used by storing sockets of various standards in a tool box, and selecting the socket of the appropriate standard when using it and fitting it into the latch handle. Not only is this troublesome, but it also causes confusion between the dimensions of two types of bolts and nuts, which are expressed in inches (inches) or millimeters (mm). This was by no means easy, and there were cases where it was lost during use. Furthermore, in the case of a monkey wrench, it is necessary to repeatedly insert and remove the tool each time the work is carried out, which is disadvantageous in that it is time consuming.

[Means for solving problems]

Therefore, in order to solve the above-mentioned problems, the self-adjusting socket trench according to this invention has a long hole in the center of the disc-shaped rotating gear body 4 to form a guide path 6, and a guide path 6 is formed on the lower surface of the rotating gear body 4. A moving groove 5 is formed on both sides of the guide path 6 for locking the moving rods 3 and 3', which will be described later.
The movable rods 3, 3' of the left joint part 2 and the right joint part 2' are connected to each other, and a spare gear 7 consisting of a pinion gear is provided at one end on the upper surface side of the rotating gear main body 4 in which a guide path 6 is formed. A double worm 8, which has two worm gears facing each other with gears in opposite directions, is placed facing the guide path 6 so that each worm gear meshes with the racks 1 and 1', and the worm shaft 10 A disc-shaped mounting adjustment plate 9a is rotatably disposed on the center line of the rotating gear body 4 and has a crown gear adjustment plate gear 9 formed on its lower surface, and is mounted so that the adjustment plate gear 9 meshes with the spare gear 7. An adjustment plate 9a is arranged coaxially with the rotating gear main body 4, and a spring 11 is arranged so as to pull the mounting adjustment plate 9a and the rotating gear main body 4 together in the circumferential direction, and a stepped portion is formed below. A rotary gear is housed in the interior 14 of the main body 16, which is a round hole, so that the lower surface of the rotary gear main body 4 rotates while contacting the upper surface of the stepped portion, and engages with the rotary gear 4b of the rotary gear main body 4. Rotating gear body 4 due to stop
Make sure that the mounting adjustment plate 9 rotates only in one direction.
When a is rotated, the spare gear 7 meshing with the adjustment plate gear 9 is rotated, when the spare gear 7 is rotated, the integrally formed double worm 8 is rotated, and when the double worm 8 is rotated, the opposing worm gear is rotated. are in opposite directions, the racks 1 and 1' move in opposite directions, and the size of the clamping part can be changed by rotating the mounting adjustment plate 9a. ) The holding part can be adjusted to match the size of the holding part.

〔Example〕

Next, one embodiment of the self-adjusting socket trench according to this invention will be described based on the drawings. The movable rods 3, 3' of the left joint part 2 and the right joint part 2', which have racks 1, 1' formed on their upper parts, are connected to the disc-shaped rotating gear body 4.
Insert into the lower movement groove 5. A spare gear 7 is installed in the guide path 6 and the guide recess 6a formed in the rotating gear body 4.
Attach the double worm 8 with the adjustment plate 9a with the adjustment plate gear 9. The guide path 6 is formed by a long hole passing through the center of the rotating gear body 6, and the moving grooves 5 are formed on both sides of the guide path 6.
However, the width becomes narrower toward the bottom. Further, the double worm 8 which has a spare gear 7 consisting of a pinion gear at one end has a configuration in which two worm gears with gears facing in opposite directions are opposed, so that the pinion gear and the worm gear rotate integrally. It's summery. Then, each worm gear faces the guide path 6 so as to mesh with the racks 1 and 1', inserts the worm shaft 10 into the shaft hole 8a of the double worm 8, and connects both ends of the worm shaft 10 to the rotating gear body. Worm shaft support hole 10 formed in 4
The double worm 8 is fixed by fitting into the holes a and 10a'. The mounting adjustment plate 9a is inserted into the guide recess 6a on the spare gear 7 configured in this manner so that the mounting adjustment plate 9a is coaxial with the rotating gear main body 4, and is meshed with the adjustment plate gear 9 made of a crown gear. do. Then, the spring 11 is connected to the spring pin holes 12a, 12'a via the spring hanging pins 12, 12',
The grip attachment adjustment plate 9a and the rotating gear main body 4 are connected so as to attract each other in the circumferential direction.

Such an overall structure allows the lower surface of the rotating gear main body 4 to come into contact with the upper surface of the step in the inner part 14 of the main body 16, which is a round hole with a step formed at the bottom, and to be in close contact with the outer wall 4a of the rotating gear main body 4. The toes 15 of the rotating gear 4a are housed inside the main body 16 in a state where they are engaged with each other, and both ends of the spring operating rod 17 are fitted into the rotating gear stop recess 18 and the main body recess 18.
It is inserted between a and internally.

After assembling in this way, the lid 19 is attached to the main body 1.
6, the lid inner wall 20 is engaged with the adjustment plate lid fitting part 20a of the mounting adjustment plate 9a, and the adjustment rod hole 21 is engaged with the rotating gear stopper 21a, and then the lid Rotating gear stopper 21 from above 19
Fix the operating lever 22 to a, and tighten the main body 1 with the screw 23.
The lid 1 is inserted through the screw hole 24 of No. 6 and the hole 24a of the lid.
9 is assembled and fastened to the main body 16.

[Effect]

To explain the operation of this device configured as described above, as shown in FIG.
Since the mounting adjustment plate 9a and the rotating gear main body 4 are pulled together in opposite directions by the
and the right joint portion 2' are in contact with each other via the spare gear 7 and double worm 8 so that they can face each other. In this state, when the mounting adjustment plate 9a is rotated clockwise using the adjustment plate knob 9b, the spring 11 connected to the mounting adjustment plate 9a is expanded as shown in FIG. 5, and the rotating gear body 4 is rotated in the same direction. Try to rotate it. However, since the rotation end 15 is fitted to the rotation gear 4b, the rotation gear main body 4 is fixed and the mounting adjustment plate 9
Only part a rotates clockwise, and as the spring 11 stretches, the left joint part 2 and the right joint part 2' are separated and moved outward. That is, the adjustment plate gear 9 of the attachment adjustment plate 9a turns the spare gear 7 of the double worm 8, and the double worm 8 opens the left and right joints 2 and 2' from each other while rotating the racks 1 and 1' that are engaged with each other. This is to put it in a good state.

When this preparation state is completed, align the object to be loosened or tightened (bolts, nuts, etc.) with the clamping parts 2a, 2'a, and then release the adjustment plate knob 9b that was held by hand. , mounting adjustment plate 9a
and a spring 11 extending to the rotating gear body 4.
The adjustment plate gear 9 rotates the spare gear 7 while rotating the mounting adjustment plate 9a in the opposite direction toward the initial position due to the contraction action. At that time, the double worm 8 arranged in the shaft hole 8a and the worm shaft support holes 10a, 10'a through the worm shaft 10 rotates, and the racks 1, 1' of the left joint part 2 and the right joint part 2' are rotated. The moving rod 3 of the left joint part 2 and the right joint part 2' is connected through the
3' moves inward along the moving groove 5, and the object is held between the holding parts 2a and 2'a. After fixing in this way, when the operator rotates the operating lever 22 in the desired direction, the internal spring 11' of the resilient operating rod 17 inserted into the rotary gear locking recess 18 and the main body recess 18a is activated. It is stopped in the direction. After stopping in this way, if the handle portion 26 of the main body 16 is moved repeatedly over a constant width, the object rotates only in the direction in which it stopped, so that the object is tightened or loosened.

Thereafter, when the main body 16 is pulled upward and removed from the object, the spring 11 contracts and returns to the state before use.

[Effect of idea]

As mentioned above, according to the self-adjusting socket trench according to this invention, the disc-shaped rotating gear body 4 includes:
A long hole is provided in the center part to form a guide path 6,
A left coupling portion 2 in which moving grooves 5 for locking the moving rods 3 and 3' described later are formed on both sides of the guide path 6 on the lower surface of the rotating gear main body 4, and racks 1 and 1' are formed in the moving grooves 5. A spare gear 7 consisting of a pinion gear is provided at one end on the upper surface side of the rotating gear main body 4, which connects the movable rods 3, 3' of the right side coupling part 2' and forms a guide path 6. A double worm 8 with two worm gears facing each other is placed facing the guide path 6 so that each worm gear meshes with the racks 1 and 1', and the worm shaft 10 rotates the rotating gear main body 4. A disk-shaped mounting adjustment plate 9a is arranged on the center line and has a crown gear adjustment plate gear 9 formed on the lower surface.The mounting adjustment plate 9a is connected to the rotating gear main body 4 so that the adjustment plate gear 9 meshes with the spare gear 7. arranged on the same axis,
A spring 11 is disposed so as to attract the mounting adjustment plate 9a and the rotating gear main body 4 to each other in the circumferential direction. Gear body 4
The rotary gear body 4 is housed so that it rotates with its lower surface in contact with the upper surface of the step, and the rotary gear stop that engages with the rotary gear 4b of the rotary gear body 4 allows the rotary gear body 4 to rotate in only one direction. It can be adapted to objects of different dimensions, and not only does it eliminate the need to have sockets of various standards in the tool box, but it also eliminates the risk of losing them, allowing you to tighten the bolts and nuts of the object in a short time. It is possible to do work such as tightening or loosening, and has the effect of being easy to use and shortening the working time.

[Brief explanation of the drawing]

The drawings show an embodiment of the self-adjusting socket trench according to this invention, and FIG. 1A is an exploded perspective view, FIG. 1B is an exploded perspective view of the spring-actuating rod, and FIG. , FIG. 3 is a vertical sectional view of the main part, FIG. 4 is a partially cutaway sectional view of the stopped state before operation,
FIG. 5 is a partially cutaway cross-sectional view of the mounting preparation state. 1, 1'...Rack, 2...Left joint part, 2'...
... Right joint part, 2a, 2'a... Holding part, 3,
3'...Moving rod, 4...Rotating gear body, 4a...
Outer wall of rotating gear main body, 4b...Rotating gear, 5...
Movement groove, 6... Guide path, 7... Spare gear, 8...
...double worm, 8a...shaft hole, 9...adjustment plate gear, 9a...installation adjustment plate, 9b...adjustment plate knob, 10...worm shaft, 10a, 10'a...
Worm shaft support hole, 11, 11'...spring,
12, 12'...Spring hanging pin, 12a,
12'a...Spring pin hole, 14...Body 1
Inside of 6, 15...Rotating gear toe, 16...Main body, 17...Bulging lever, 18...Rotating gear retaining recess, 19...Lid body, 19a...Lid body fitting recess, 2
0... Lid internal wall, 20a... Adjustment plate cover fitting part, 21... Adjustment rod hole, 21a... Rotating gear stopper, 22... Operating lever, 23... Screw, 24...
...Threaded hole, 24a...Lid hole, 26...Handle portion.

Claims (1)

[Scope of utility model registration request] A guide path 6 is formed by providing a long hole in the center of the disc-shaped rotating gear main body 4, and moving rods 3, 3' (described later) are provided on both sides of the guide path 6 on the lower surface of the rotating gear main body 4.
A moving groove 5 is formed to lock the guide path 6, and the moving rods 3, 3' of the left connecting part 2 and the right connecting part 2', in which racks 1, 1' are formed in the moving groove 5, are connected.
A spare gear 7 made of a pinion gear is provided at one end on the upper surface side of the rotating gear body 4 formed with a
A double worm 8 having two opposing worm gears with gears facing in opposite directions is placed facing the guide path 6 so that each worm gear meshes with the racks 1 and 1', and is rotatable by the worm shaft 10. A disk-shaped mounting adjustment plate 9a is disposed on the center line of the rotating gear main body 4 and has a crown gear adjustment plate gear 9 formed on the lower surface.The mounting adjustment plate 9a is installed so that the adjustment plate gear 9 meshes with the spare gear 7. This mounting adjustment plate 9a is arranged coaxially with the rotating gear main body 4.
A spring 11 is disposed so as to pull the rotating gear main body 4 together in the circumferential direction, and the lower surface of the rotating gear main body 4 is inserted into the interior 14 of the main body 16, which is a round hole with a step formed at the bottom. The rotating gear body 4 is stored so that it rotates in contact with the upper surface of the stepped part.
A self-adjusting socket trench characterized in that a rotating gear main body 4 is configured to rotate only in one direction by a rotating gear stop that engages with a rotating gear 4b.