JP3040975B2 - Vertical wrench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical wrench used as a tool for turning a pipe having an opening in the longitudinal direction of a handle.

[0002]

2. Description of the Related Art Conventionally, a vertical wrench as shown in Japanese Utility Model Publication No. 50-37112 has been widely used, but this vertical wrench generally has the following configuration.

[0005] For example, as shown in FIG. 5, a long handle 21 has a pair of jaws 23A and 23B which bend the tip of the handle slightly to the side and clamp a driven member 22 such as a pipe at the tip. A clamping portion 23 is provided, and jaws 23A and 23B of the clamping portion 23 are provided.
An opening 24 for introducing the driven member 22 therebetween is provided in the length direction of the handle 21.

Specifically, a yoke 25 is pivotally attached to the end of the handle 21 in a bag-like shape and protruded sideways against an elastic body, and is exposed from the outer surface of the yoke 25. Warm to state
26 is rotatably provided, and a moving body 28 provided with rack teeth 27 meshing with the worm 26 is movably provided in the yoke 25,
One jaw 23A is integrally formed at a right angle to the moving body 28, and the other jaw 23B is provided at the tip of the handle 21 in a state facing the one jaw 23A. The movable body 28 is moved by the operation, and one jaw 23A is movably provided with respect to the other jaw 23B, so that the opposing interval between the jaws 23A and 23B can be adjusted, and the yoke 25 rotates. Therefore, one jaw 23A is configured to be rotatable and movable.

Therefore, the facing distance between the jaws 23A and 23B of the holding portion 23 can be adjusted by rotating the worm 26 in accordance with the outer diameter of the driven member 22 such as a pipe or a nut to be held. For example, when the driven member 22 is to be removed from the holding portion 23 after the tightening rotation by the pressing of the yoke 25, the yoke 25 is rotated toward the base end side of the handle portion 21 against the elastic body 11 and one of the jaws is rotated. The portion 23A can be easily removed by rotating (lifting up) the opening 23A relative to the other jaw 23B.

[0006]

However, as described above, the conventional vertical wrench simply has a worm 26 and rack teeth 27 provided on a bag-like yoke 25 provided at the end of the handle 21 so as to protrude laterally. The movable body 28 provided with the one jaw 23A is provided so as to be movable by engagement of the movable body 28. For example, when the movable body 28 is moved to reduce the facing distance between the jaws 23A and 23B, the movable body 28 is moved. The base end 28 </ b> A of the body 28 abuts the side surface of the tip of the handle 21. Moreover, the base end 2 of the moving body 28
When 8A hits the tip side surface of handle 21 in this way, or when approaching considerably, yoke 25 opens and cannot rotate (lift up is impossible).

Therefore, since the lift-up function is not actually lost, the movable body 28 cannot be moved until the base end portion 28A abuts on it, so that the interval between the jaws 23A and 23B cannot be made too small. In other words, the range of pipe sizes that can be turned is narrow.

That is, the handle 21 and the moving body 28 (chin 23A)
When the jaw 23A is moved in the direction to close the opening 24 in order to turn the small diameter pipe 22, the moving body 28 provided with the jaw 23A is gripped by the base end 28A. The configuration is such that the yoke 25 hits the handle portion 21 and, even immediately before hitting, the yoke 25 becomes unrotatable and loses the lift-up function of the yoke 25.
Actually, the base end portion 28A of the moving body 28 can move only to a position where it does not interfere at all even when the yoke 25 is rotated, and thus there is a problem that it cannot be applied to a very small pipe.

On the other hand, in order to turn the large-diameter pipe 22, on the other hand, the jaws 23A need to be moved in the wide open direction. The 25 protrusion lengths must be long enough.

For this reason, a medium-diameter pipe 22 or a small-diameter pipe
When one of the jaws 23A is moved in the closing direction when the clamp 22 is held, the tip of the yoke 25 is placed outside the jaws 23A.
The 25A protrudes greatly, impairing operability and convenience in a narrow space and increasing the weight.

For this reason, conventionally, the amount of movement of the jaw portion 23A in the opening direction cannot be made large in order to limit the protruding length of the yoke 25.

As described above, the conventional vertical wrench has a problem that the range of adjustment of the facing distance between the jaws 23A and 23B of the holding portion 23 for accommodating the pipe diameter cannot be made large and the range of use is narrow.

The present invention finds such a problem, and solves this problem with a simple structure. The present invention can be applied to a large-diameter driven member, and when a small-diameter driven member is clamped, as in the conventional example. The tip of the yoke does not protrude outward beyond the chin, and can be applied to small diameters, without losing the rotation function (lift-up function) of the yoke. It is intended to provide an innovative vertical wrench that can be used in a wider range.

[0014]

The gist of the present invention will be described with reference to the accompanying drawings.

At the tip of the handle part 1, there is provided a clamping part 3 comprising a pair of jaws 3A, 3B for clamping a driven member 2 such as a pipe or a nut, between the jaws 3A, 3B of the clamping part 3. The opening 4 for introducing the driven member 2 is inserted into the handle 1
A vertical Katachire inch provided in the length direction, the Nigie unit 1
The pivoting portion 5A of the yoke 5 is pivotally attached to the neck of the yoke 5 with a pivot pin 12, and a flat butting portion 5B opposite to the pivoting portion 5A is provided on the curved portion 14 of the handle handle 1. The yoke 5 is rotatably mounted about the pivot pin 12 by inserting the yoke 5 into the groove 15, and a substantially L-shaped moving body 8 having rack teeth 7 meshing with the worm 6 provided on the yoke 5 is provided. The movable body 8 is movably fitted along a guide hole 16 provided in the yoke 5, and the one jaw portion 3 </ b> A is formed at the distal end side of the movable body 8. Move it,
The distance between the jaws 3A and 3B of the holding portion 3 is configured to be adjustable, and the jaw 3A is configured to be rotatable with respect to one jaw 3B by the rotational movement of the yoke 5. A rotation guide portion 9 is provided as a space for allowing the rotation movement of the yoke 5 and the back and forth movement of the movable body 8 and ensuring the rotation movement so that the base end portion 8A does not hit the handle portion 1. Recessed in the bow 14 of the handle 1 ;
The rotation guide portion 9 is provided with the
A movement that allows further protruding movement of the base end 8A of the moving body 8
A moving recess 9A is provided on the outer surface of the distal end of the handle 1 and
The width of the concave portion 9A in the rotation direction of the yoke 5 is set wide.
The present invention relates to a vertical wrench having a configuration.

Further, a finger hook 10 which functions as a stopper for abutting against the handle portion 1 when the yoke 5 rotates and prevents excessive rotation is protruded from the yoke 5. 1. A vertical wrench according to item 1.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to implement the invention), which is considered to be the best, will be briefly described with reference to the drawings, showing its operational effects.

For example, when turning the driven member 2 having a small outer diameter such as a small-diameter pipe, the worm 6 is rotated to move the movable body 8 provided with one jaw 3A along the yoke 5. The base end 8A of the moving body 8 does not abut on the handle 1 and, because of the lift-up operation, even if the yoke 5 is rotated against the elastic body 11, the rotation provided on the handle 1 The base 8A of the moving body 8 does not abut against the handle 1 by the movement guide 9, and can be rotated together with the yoke 5 without interfering with the handle 1.

Therefore, even if the moving body 8 is moved along the yoke 5, the lift-up function is not impaired (the yoke 5 does not become unrotatable). The facing distance can be reduced. Therefore, the small diameter side of the use range can be expanded. On the other hand, the moving body 8 projects from the tip of the yoke 5 by the rotation of the worm 6, and the jaw 3
If the opposing interval between A and 3B can be adjusted widely, the opposing interval can be adjusted widely by projecting the moving body 8 from the yoke 5 without having to design the protruding length of the yoke 5 longer than in the conventional example. . Therefore, when the moving body 8 is moved in the proximal direction to reduce the distance between the jaws 3A and 3B and is used, the moving body 8 projecting from the yoke 5 becomes
The yoke 5 does not protrude outside the holding portion 3 when the jaw portions 3A, 3B are used with a narrow facing distance as in the conventional example because they are retracted inward.

That is, according to the present invention, the facing distance between the jaws 3A and 3B can be adjusted widely without increasing the protruding length of the yoke 5 itself as in the conventional example. Therefore, the facing distance between the jaws 3A and 3B is reduced. Even so, the yoke 5 can be configured so that no protruding portion is formed outside the jaw portion 3A, and the workability near the wall surface is not impaired, and the convenience is improved.

As described above, according to the present invention, the jaws 3A, 3B
The range of adjustment of the facing distance can be set wider, there is no problem with the lift-up function, and there is almost no problem with the protruding part as in the conventional example. It is a configuration that can be easily enlarged and designed, and is a vertical wrench with excellent workability.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

The distal end of the long handle 1 is bent slightly to the side, and a clamping portion 3 comprising a pair of jaws 3A and 3B for clamping a driven member 2 such as a pipe is provided at the distal end. An opening 4 for introducing the driven member 2 is provided between the jaws 3A and 3B of the portion 3 in the longitudinal direction of the handle 1.

More specifically, the turning portion 5A of the yoke 5 is pivotally mounted on the tip neck portion 13 of the handle portion 1 with a pivot pin 12 with a pivoting pin, and the abutting flat portion 5B on the opposite side to the turning portion 5A. Is inserted into a groove 15 provided in the bent portion 14 of the handle 1 and the yoke 5 is turned around the pivot pin 12 against the elastic body 11 so as to protrude to the side of the handle 1. A worm 6 rotatably mounted on the outer surface of the yoke 5 so as to be exposed, and a rack-shaped moving body 8 having a predetermined length provided with rack teeth 7 meshing with the worm 6 on its side edges. Is provided movably along a guide hole 16 (slide guide portion) inside the yoke 5, and one jaw portion 3 </ b> A is integrally formed on the movable body 8 at a substantially right angle, and the other jaw portion 3 </ b> B is The movable body 8 is moved by rotating the worm 6 so that one jaw 3A is attached to the other end of the handle 3 so as to face the jaw 3A. The jaw 3B is provided movably with respect to the jaw 3B so that the distance between the jaws 3A and 3B can be adjusted. The rotation of the yoke 5 allows the one jaw 3A to move relative to the other jaw 3B. It is configured to be rotatable and movable.

Accordingly, the facing distance between the jaws 3A and 3B of the holding portion 3 can be adjusted by rotating the worm 6 in accordance with the outer diameter of the driven member 2 such as a pipe or a nut to be held. For example, when the driven member 2 is to be removed from the holding portion 3 after the tightening rotation by the pushing, the yoke 5 is rotated toward the base end side of the handle portion 1 against the elastic body 11 and one jaw is rotated. The structure is such that the part 3A can be easily removed by rotating (lifting up) with respect to the other jaw part 3B in the opening direction.

In this embodiment, the base end 8A of the moving body 8 does not hit the handle 7 so that the base 8A of the moving body 8 does not prevent the rotational movement of the yoke 5. In addition, a rotation guide portion 9 that enables the yoke 5 to rotate can be provided at the distal end of the handle 1.

That is, in the present embodiment, the yoke 5 is formed in a substantially square shape instead of a long tube as in the conventional example, and the length of the protrusion from the tip end of the handle portion 1 to the side is shorter than in the conventional example. A rod-shaped moving body 8 having a predetermined length movably provided along the inner slide guide portion of the yoke 5 is configured so that both the distal end portion and the base end portion of the yoke 5 can pass through, protrude and retreat. I have. When the base end 8A of the moving body 8 protrudes from the yoke 5, the base end 8A of the moving body 8 that rotates together with the yoke 5 even when the yoke 5 rotates is moved to the grip handle portion. A rotation guide portion 9 is provided on the curved portion of the handle portion 1 so that the yoke 5 can rotate and move without hitting the yoke 5.

Further, in this embodiment, the base end 8A of the moving body 8 protruding from the yoke 5 does not abut against the side surface of the handle 1 so that the worm 6 can be further protruded and moved by rotating the worm 6. A moving recess 9A is provided on the outer surface of the curved portion of the handle 9 and the width of the moving recess 9A in the direction of rotation of the yoke 5 is set to be large to form the rotation guide portion 9.

Also, the one jaw 3A is integrally and substantially protruded from the tip end of the movable body 8 projecting from the yoke 5, and the movable body 8 including the jaw 3A is formed into an L-shaped rod. The moving body 8 is configured to pass through and protrude from the tip of the yoke 5. On the other hand, if the moving body 8 is moved backward, the protruding portion of the moving body 8 will sink into the yoke 5. Make up.

Therefore, when turning the driven member 2 having a small outer diameter, such as a small-diameter pipe, as shown in FIG. 1, the movable body having one jaw 3A provided along the yoke 5 by rotating the worm 6 is provided. 8 is moved, the base end 8A of the moving body 8 is moved.
Does not come into contact with the handle 1 and is located in the moving recess 9A on the outer surface of the distal end of the handle 1. Even if the yoke 5 is rotated against the elastic body 11 for the lift-up operation, The base end 8A of the moving body 8 does not abut against the handle 1 by the rotation guide 9 having a wide guide recess 9A, and can be rotated together with the yoke 5 without interfering with the handle 1.

That is, in this embodiment, even if the moving body 8 is moved to narrow the gap between the jaws 3A and 3B sufficiently, the moving body 8 moves backward toward the moving concave portion 9A provided as the rotation guide portion 9. As shown in FIG. 1, the yoke 5 can pass through the handle portion 1 to the outside, and even if the yoke 5 is rotated in this state, the width of the moving recess 9A is widened. The base end 8A of the moving body 8 that rotates together with the yoke 5 does not interfere with the handle 1 as well.

Therefore, even if the moving body 8 is moved along the yoke 5, the lift-up function is not impaired (the yoke 5 does not become unrotatable). The facing distance can be made sufficiently small. Accordingly, the small diameter side of the use range can be considerably expanded.

On the other hand, since the moving body 8 is projected from the tip of the yoke 5 by the rotation of the worm 6, the opposed distance between the jaws 3A and 3B can be adjusted widely. Even if the moving body 8 is not designed to be long as in the example, the facing distance can be adjusted widely by projecting the moving body 8 from the yoke 5. Therefore, when the moving body 8 is moved backward in the proximal direction and the interval between the jaws 3A and 3B is reduced and used, the moving body 8 protruding from the yoke 5 is set into the yoke 5. Because it retreats, as in the conventional example,
The yoke 5 does not protrude significantly outside the holding portion 3 when the opposed spaces A and 3B are used with a narrow facing distance.

That is, the interval between the jaws 3A and 3B can be adjusted widely without increasing the length of the yoke 5 itself as in the conventional example. Therefore, even if the interval between the jaws 3A and 3B is reduced, the yoke 5 can be adjusted. As a result, no projecting portion is formed on the outside of the chin portion 3A, and the convenience is improved without impairing the workability near the wall surface.

As described above, in the present embodiment, the jaws 3A,
The range of adjustment of the 3B facing distance can be set wider, there is no problem with the lift-up function, and there is no problem of the projecting portion as in the conventional example. It becomes a vertical wrench that expands and has excellent workability.

For example, the length of the portion having the rack teeth 7 of the moving body 8 is set to a size of 450 in the market, and the yoke 25 is a combination of the conventional handle 21 and the yoke 25 having the configuration described in the conventional example. When the length is set to be the same as the protruding length, the conventional product has a minimum use opening (interval between the jaws 23A and 23B) of 32 mm, a maximum opening of 70 mm, and an effective movement difference (adjustment range). On the other hand, in this product, the minimum use opening (interval between the jaws 3A and 3B) is 20 mm, and the maximum opening difference is 83 mm, and the effective movement difference (adjustment range) is 63 mm. The opening size is increased by 65%, and widening can be easily achieved.

Further, in the conventional product, in order to increase the opening of the mouth, the protruding length of the yoke 25 must be increased, so that the position of the worm 26 is also far from the handle 21.
In the present embodiment, the yoke 5
Can be determined irrespective of the maximum opening size (interval between the jaws 3A, 3B), so in this embodiment, it is substantially square, and the position of the worm 6 can be as close to the handle 1 as possible. Was.

Therefore, the operator can rotate the worm 6 with the finger holding the handle 1.

Further, when the yoke 5 rotates, the finger hook 10 functions as a stopper which abuts on the handle 1 to prevent excessive rotation and protrudes from the base of the handle 1 of the yoke 5. doing.

Accordingly, the lift-up operation for rotating the yoke 5 can be performed with the fingertip of the hand gripping the handle 1, and the operation of the worm 6 and the yoke 5 can be performed while both the grips are held. It is.

The finger hook 10 also functions as a stopper for the yoke 5, prevents over-rotation, prevents damage to the elastic body 11 (a coil spring in the embodiment) due to over-compression, and improves durability.

[0042]

Since the present invention is constructed as described above, even when one of the jaws is moved in the direction to close the opening when the driven member having a small diameter is to be clamped, the base end of the moving body remains. Because it can be lifted up and rotated with the yoke without hitting the handle, and without interfering with the handle, the distance between the jaws can be reduced compared to the conventional example, and the range of use is expanded. It becomes a vertical wrench.

That is, according to the present invention , the opposing interval can be adjusted widely by projecting the movable body from the yoke without having to design the projecting length of the yoke as long as the conventional example, while exhibiting the above-mentioned functions and effects reliably. , yet the problem of lug portions as in the prior art also hardly occurs, use range from large pipe to the small diameter pipe is configured to be easily expanded design than the prior art, also Xiu be workability, also very simple Configuration
Thus, an extremely innovative vertical wrench that can achieve the object of the present invention is provided .

According to the second aspect of the present invention, the lift-up operation for rotating the yoke can be performed with the fingertip of the hand gripping the handle, which is extremely excellent in workability.

The finger hook also functions as a stopper for the yoke, prevents over-rotation, prevents damage to the elastic body (coil spring in the embodiment) due to over-compression, and improves durability.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view in a state where a small-diameter pipe as a main part of the present embodiment is sandwiched.

FIG. 2 is an explanatory plan view in a state where a large-diameter pipe as a main part of the present embodiment is sandwiched.

FIG. 3 is an explanatory side view of the present embodiment.

FIG. 4 is an enlarged explanatory perspective view of a main part of the embodiment.

FIG. 5 is an explanatory plan view of a main part of a conventional example.

[Explanation of symbols]

1 Nigie unit 2 driven member 3 clamping unit 3A jaw 3B jaws 4 opening 5 yoke 5A rotating portion 5B flat part 6 worm 7 rack teeth 8 mobile 8A proximal portion 9 rotating guide portion 9A moving recesses 10 Finger hook part 12 Pivot pin 14 Curved part (curved neck part) 15 Groove part

Claims (2)

(57) [Claims] 1. A grip portion comprising a pair of jaws for holding a driven member such as a pipe or a nut at an end of a handle, and an opening for introducing the driven member between the jaws of the grip portion. part a vertical Katachire bench provided in the longitudinal direction of the Nigie portion, the neck portion of the Nigie portion, the rotating portion of the yoke and the shaft wear in pivot pin, said pivot portion Is inserted into a groove provided in the curved portion of the handle, and the yoke is rotatably mounted around the pivot pin, and meshes with a worm provided in the yoke. A substantially L-shaped movable body having rack teeth to be inserted is movably fitted along a guide hole provided in the yoke, and the one jaw portion is formed at a tip end of the movable body, and rotation of the worm is performed. By moving the moving body by operation, the opposing distance between the jaws of the holding portion can be adjusted freely. In both cases, the jaw portion is configured to be rotatable with respect to one jaw portion by the rotational movement of the yoke, so that the rotational movement of the yoke and the longitudinal movement of the movable body are possible, and the base end is recessed the rotation guide part to bend in the neck of the Nigie portion as a space for securing a rotating movement so as not impinge on the Nigie portion, the pivot guide part,
Further protrusion of the base end of the moving body protruding from the yoke
A transfer recess that allows out-and-out movement is provided on the outer surface of the tip of the handle.
And the width of the yoke of the moving concave portion in the rotation direction is increased.
A vertical wrench characterized by a set configuration . 2. The vertical type according to claim 1, wherein a finger-hook portion, which functions as a stopper for abutting against the handle portion when the yoke rotates and prevents excessive rotation, is provided on the yoke. wrench.