JP2001341078A - Plier with holding lock mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plier with a right and a left holding part which can work to open and close as an ordinary plier and to extend and become narrower accordingly by improving a holding lock mechanism R and to furnish the holding lock mechanism the same as conventional. SOLUTION: This plier with a holding lock mechanism is constituted free to open and close holding half bodies 2A, 2B with holding parts 1A, 1B on their head ends round their crossing journalled part 13 as their fulcrum by crossing and journalling them with each other, free to open and close the both holding parts 1A, 1B as both gripping parts 3A, 3B become free to open and close each other by providing the one side gripping part 3A on a base end part of the one holding half body 2A and providing the other side gripping part 3B to be in a state opposed to the one side gripping part 3A by journalling its head end part on the head end part of the other holding half body 2B and to adjust a movement adjustment mechanism S to move and adjust a journalled part position by journalling the base end part of the other holding half body 2B arranged between these both gripping parts 3A, 3B on the other side gripping part 3B through a connecting part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pliers with a locking mechanism.

[0002]

2. Description of the Related Art A state in which a holding object is held can be locked, for example, it is possible to hold the holding object even when the grip is loosened or released, in other words, it is possible to fix the state in which the pliers are held between the holding object. Pliers with a locking mechanism are commercially available.

[0003] In this pinching lock mechanism, in a clamping state in which the gripping portion is gripped and the clamped object is clamped by the clamping portion at the tip, the intermediate pivoting portion of the three pivoting portions is set at the top as the three points. An axle-shaped connection portion is formed in which the shaft attachment portion is arranged in a U-shape, and the vertex is located at a position where the K-shaped connection portion becomes a reversely warped shape by gripping the gripping portion more strongly. It is configured such that the pinched state is locked by moving the shaft attaching portion.

For example, to explain more specifically, a conventional pliers with a clamping lock mechanism is, for example, as shown in FIG. 7, a clamping half 21A having a clamping portion 21A at the distal end and a one-side gripping portion 23A at the base end. The other end of the other clamping half 22B (clamping jaw 22B) having a clamping portion 21B at the distal end is pivotally mounted on the base 22A, and the other clamping half 22B is connected to the other end of the other clamping half 22B by the other end. By pivotally attaching the side gripping portion 23B and opening / closing the other side gripping portion 23B with respect to the one side gripping portion 23A, the pivoting portion at the proximal end of the other clamping half 22B is formed. Holding part at the tip with 30 as a fulcrum
The holding portion 21B is configured so as to open and close so that the holding portion 21B widens and narrows, and the link connecting portion 24 connecting the other side holding portion 23B and the one side holding portion 23A is inclined in the middle of the other side holding portion 23B. It is configured such that a movement adjusting mechanism S which can be axially mounted in the installed state and which can move and adjust the position of the shaft mounting portion 26 with the link connecting portion 24 is provided on one side grip portion 23A.

That is, a shaft attachment portion 25 is formed between the other end portion on the base end side of the other holding half body 22B and the tip portion of the other holding portion 23B, and a link connecting portion 24 is provided between the middle portion of the other holding portion 23B and the link connecting portion 24. The pivotal attachment portion 27 between the shaft attachment portion 26 and the link connection portion 24 and the middle of the one-side grip portion 23A,
The above-mentioned K-shaped connecting portion K which is arranged in a U-shape in the sandwiched state
Is formed, and the other-side grip portion 23B, which is the apex of the U-shaped connecting portion K, is gripped and pressed by the other-side grip portion 23B against the one-side grip portion 23A in the sandwiched state. The shaft attachment portion 26 between the link and the link connection portion 24 is pressed inward, and the U-shaped connection portion K is bent in a reverse U-shape by clearance or the like at each shaft attachment portion so that the pinched state can be locked.

[0006] The other grip portion 23B is provided with a release operating portion for returning the locked (moved) vertex shaft attaching portion 26 to return.
28 are provided.

Accordingly, the link connecting portion 24 and the one-side gripping portion 23A are arranged so that the K-shaped connecting portion K is slightly shaped by the movement adjusting mechanism S using the adjusting bolt while the holding object 29 is held.
The position of the shaft attaching portion 27 is moved, and the link connecting portion 24 is moved.
It is configured such that the inclination can be adjusted and the squeezing lock can be performed as described above by grasping strongly.

[0008]

However, in such a conventional pliers with a clamping lock mechanism, in order to provide this clamping lock mechanism R, one clamping half 22A is connected to the other clamping half 22B in the usual manner. One holding half 22A having a holding portion 21A at the distal end and a one-side gripping portion 23A at the base end cannot be mounted on a cross shaft like a plier, and the other holding portion 21
B, a so-called clamping jaw 22B is pivotally mounted, and the clamping jaw 22B is pivotally mounted on the other-side gripping portion 23A for opening and closing the pivoting portion 30 as a fulcrum.
Also, one of the holding portions 21A does not operate, and the one-side holding portion 23A
In contrast, when the other-side gripping portion 23B is opened and closed (when the approaching / separating operation is performed), only the other holding portion 21B performs the wide / narrowing operation (approaching / separating operation) with respect to the one holding portion 21A,
It was a pliers with a one-sided opening and closing structure.

[0009] For this reason, it has been said that the pliers have a drawback that they are difficult to use because they do not operate largely and narrowly.

The present invention finds such a problem in the conventional pliers with a locking mechanism, and solves the problem. By improving the locking mechanism R, the pliers can be gripped on both the left and right sides just like a normal pliers. The pliers can be opened and closed, so that both the left and right holding parts can be operated in a wide and narrow manner. Furthermore, the pliers can be provided with a holding lock mechanism as before, so that the original usability as a plier for gripping work is improved. An object of the present invention is to provide an innovative pliers with a clamping lock mechanism which is very easy to use and can lock the clamping state by a gripping operation by providing a clamping lock mechanism.

[0011]

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

The grip portions 3A, 3B are gripped to hold the grip portions 1A,
In a clamping state in which the object to be clamped is clamped by 1B, a square-shaped connecting part K is formed, which is composed of three shaft mounting parts and is arranged in a V-shape with three intermediate shaft mounting parts O as vertices. And
By holding the holding portions 3A and 3B more strongly, the holding portion 3A is relatively moved in the direction in which the shaft-attached portion O is in the shape of a straight line or an inverted warp, and the holding state is locked. In the pliers provided with the mechanism R, clamping halves 2A and 2B provided with clamping portions 1A and 1B at the ends thereof are cross-shaft-attached, and the cross-shaft attaching portion 13 is configured to be freely opened and closed at a fulcrum. A one-side grip portion 3A is provided at the base end of the body 2A,
The other gripping portion 3B which is attached to the distal end portion of the other gripping half body 2B so as to be opposed to the one-side gripping portion 3A.
Is provided so that the two grip portions 3A and 3B are openable and closable with each other so that the two grip portions 1A and 1B are openable and closable with each other, and are arranged between the two grip portions 3A and 3B. The base end portion of the other holding half body 2B is axially attached to the other grip portion 3B via the connecting portion 4 and the movement adjusting mechanism S for adjusting the position of one of the axial attaching portions is adjusted. The tip of the one-side holding half 2A and the other-side grip 3
B, a shaft attachment portion 5 with the other grip portion 3B and the connection portion 4, and a shaft attachment portion with the connection portion 4 and the base end of the other clamping half 2B. Reference numeral 7 designates the V-shaped connecting portion K, and a shaft mounting portion at an intermediate position between the three shaft mounting portions 5, 6, and 7 is a shaft mounting portion O of the vertex of the V-shaped connecting portion K which moves relatively. The present invention relates to a pliers with a sandwiching lock mechanism, wherein

3. The pliers with a pinch lock mechanism according to claim 1, further comprising a release operating portion 8 for pressing and returning the relatively-moved shaft attachment portion O in the locked state. .

A pair of holding halves 2A and 2B provided with opposing holding parts 1A and 1B at their ends are cross-shafted to each other so as to be openable and closable with the cross-shaft mounting part 13 as a fulcrum.
A one-side grip portion 3A is provided at the base end portion of A, and the one-side grip portion 3A is attached to the distal end portion of the other clamping half 2B by pivotally attaching the distal end portion.
The other grip part 3B is provided in a state opposed to A, so that both grip parts 3A, 3B can be opened and closed with each other, so that the two holding parts 1A, 1B can be opened and closed with each other,
A base end of the other holding half 2B is provided so as to be located between the gripping portions 3A and 3B provided in the facing state, and a base end of the other holding half 2B is connected to the other side. It is axially attached to the grip portion 3B via the connecting portion 4, and the other holding half 2
A telescopic adjustment mechanism S is provided as the movement adjustment mechanism S at the base end portion of B or the connection portion 4 or the other side grip portion 3B, and at least one of the positions of the shaft attachment portions 6 and 7 of the connection portion 4 is adjusted. It is provided so as to be movable and adjustable, and by performing expansion and contraction adjustment by this expansion and contraction adjustment mechanism S, the shaft adjustment part 5 between the tip end of the one-side holding half 2A and the other-side grip part 3B, the other side Shaft attachment portion 6 between grip portion 3B and connection portion 4
Further, a shaft-attaching portion 7 between the connecting portion 4 and the base end of the other clamping half 2B becomes the above-described V-shaped connecting portion K, and a shaft-joining portion at an intermediate position between the three-point shaft-attaching portions 5, 6, and 7. The grip portion 3A, the grip portion 3A,
3B, the shaft attachment portion O is relatively moved in the direction in which the shaft attachment portion O is in the shape of a straight line or an inverted warp so that the clamping state is locked. Of the gripping portions 3A,
The pliers with a locking mechanism according to any one of claims 1 and 2, characterized in that the holding portions (1A, 1B) are configured to move in a wide and narrow manner even by opening and closing operations of the opening (3B).

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

When the one-side grip 3A and the other-side grip 3B are opened and closed, the one holding half 2A and the other holding half 2A are opened.
One of the holding portions 1A moves in a wide and narrow manner with the cross shaft attaching portion 13 with B as a fulcrum, and the other holding portion 1B also opens and closes the other holding portion 3B to hold the holding half body via the connecting portion 4. The base end of 2B opens and closes, and the other holding portion 1B also opens and closes.

Therefore, instead of the conventional one-side open / close structure, both grip portions 3A and 3B can be opened and closed, whereby both sandwich portions 1A and 1B can be operated to widen and narrow each other, and the range of expansion can be expanded. And easier to grasp,
The usability as a pliers is greatly improved.

In addition, the sandwiching lock mechanism R operates reliably as before.

That is, the holding half 2 is moved by the movement adjusting mechanism S.
By moving and adjusting the position of the base end of B, a shaft attachment portion 5 between the distal end portion of the one-side holding half 2A and the other-side grip portion 3B, the other-side grip portion 3B and the connection portion 4 are formed. Shaft attachment 6 with
Also, a shaft attachment portion 7 between the connection portion 4 and the base end of the other holding half body 2B becomes the above-mentioned U-shaped connection portion K. For example, a shaft attachment portion between the other side grip portion 3B and the connection portion 4 6 is configured so as to be the shaft attachment portion O of the apex which moves relatively, and the gripping portions 3A and 3B are gripped more strongly by the expansion and contraction adjustment of the expansion and contraction adjusting mechanism S in the sandwiching state, so that the character is slightly shaped. The shaft attachment portion O of the U-shaped connecting portion K in the state of being moved moves the U-shaped connecting portion K in a reversely warped shape, and the holding state is locked.

[0020]

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

Two clamping halves 2A and 2B having opposed clamping portions 1A and 1B at their ends are cross-shaft-attached to each other, and this cross-shaft attaching portion 13 is configured to be openable and closable about a fulcrum.
A one-side grip portion 3A is provided at the base end portion of A, and the one-side grip portion 3A is attached to the distal end portion of the other clamping half 2B by pivotally attaching the distal end portion.
The other holding portion 3B is provided in a state opposed to A, and the base end of the other holding half 2B is provided so as to be located between the holding portions 3A and 3B provided in the opposed state, and the movement adjustment is performed. A telescopic adjustment mechanism S is provided as a mechanism S so as to be freely expandable and contractible, and a base end portion that is adjusted by expansion and contraction by the expansion and contraction adjustment mechanism S and adjusted in movement is connected to the middle of the other-side grip portion 3B via a connecting portion 4. I'm wearing a shaft.

As described above, the expansion / contraction adjustment mechanism S is used as the expansion / contraction adjustment mechanism S. In this embodiment, the clamping half 2B extending between the one-side gripping portion 3A and the other-side gripping portion 3B is used.
A bag-shaped nut tube 11 is provided at the base end of the bag-shaped nut tube 11.
An expansion / contraction adjustment bolt 12 is screwed onto the end of the short piece-shaped connecting portion 4 with the expansion / contraction adjustment bolt 12 as a base end, and this is used as a shaft attachment portion 7. The opposite end of the connecting portion 4 is screwed on the other side of the holding portion 3B.
This is referred to as a shaft attachment portion 6 (the shaft attachment portion O of the V-shaped connecting portion K).

That is, in the present embodiment, the shaft holding portion 5 between the tip of the one-side holding half 2A and the tip of the other-side grip portion 3B, the other-side grip portion 3B and the connecting portion are provided. A state in which the holding portion 9 is held between the holding portions 1A and 1B by the adjustment of the expansion / contraction adjustment mechanism S of the holding portion 6 with the holding portion 4 and the holding portion 7 between the connecting portion 4 and the base end of the other holding half 2B. At the top, the shaft-shaped connecting portion K of the vertex to which the shaft-mounted portion 6 of the other-side gripping portion 3B and the connecting portion 4 relatively moves becomes a square-shaped connecting portion K which is slightly arranged in a character shape. By gripping the gripping portions 3A and 3B more strongly, the shaft attaching portion O moves and the K-shaped connecting portion K becomes reversely curved and the holding state is locked. .

Accordingly, the holding portions 1A and 1B are configured to move in a wide and narrow manner by opening and closing operations of any of the holding portions 3A and 3B, and the pliers have a holding lock mechanism R.

Further, a release operation section 8 for pressing and returning the relatively-moved shaft attachment section O in the locked state is provided on the other side grip section 3B. Specifically, a lever is pivotally mounted as the release operation unit 8 along the other-side grip part 3B, and the base end side is pushed outward, whereby the distal end of the lever pushes the coupling part 4 to pivot the shaft. The character-shaped connecting portion K for returning the attachment portion O is returned to the original character-shaped state, so that the lock of the sandwiching lock mechanism R can be released.

In the second embodiment shown in FIG. 6, a telescopic adjustment mechanism S is provided on the other grip part 3B on the other side, and the connecting part 4 is pivotally mounted at a position adjusted by the telescopic adjustment mechanism S. It has a configuration. The release operation unit 8 is provided at the base end of the other holding half 2B.

As described above, the expansion / contraction adjustment mechanism S may be provided at any one of the torque mechanisms (the base end of the other holding half 2B, the connecting portion 4, and the other holding portion 3B). What is necessary is just to comprise so that the shaft attachment part O of the part K can be adjusted to the position which grips and moves and locks.

[0028]

Since the present invention is constructed as described above, the left and right grips can be opened and closed similarly to a normal plier by improving the grip lock mechanism, whereby both the left and right grips can be opened. A pliers that works wide and narrow,
In addition, it is possible to equip it with a pinch lock mechanism as before, and the original usability as a plier for gripping work is improved, it is very easy to use, and it is possible to lock the pinch state by gripping operation by using the pinch lock mechanism Pliers with a typical clamping lock mechanism.

That is, the other holding part is pivotally mounted on the tip part of one holding half in a state opposite to the one holding part of the base end of the holding half, and disposed between the holding parts. By forming the clamping lock mechanism by pivotally attaching the base end of the other clamping half to the gripping part on the other side by a connecting part, a plier with a clamping lock mechanism exhibiting the above-described operation and effect can be realized. Pliers with a typical clamping lock mechanism.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a holding state in which a thick holding object of the present embodiment is held.

FIG. 2 is an explanatory plan view of a state in which the holding state is locked by further gripping the holding state of FIG. 1 of the embodiment.

FIG. 3 is an explanatory plan view of a state in which the pinching lock state of FIG. 2 of this embodiment is unlocked by a release operation unit.

FIG. 4 is an explanatory plan view of a state in which the thin holding object of the present embodiment is held (a state in which the expansion / contraction adjustment mechanism is adjusted with respect to FIG. 1).

5 is an explanatory plan view of a state in which the gripping state is further locked from the gripping state of FIG.

FIG. 6 is an explanatory plan view of the second embodiment.

FIG. 7 is an explanatory plan view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Holding part 1B Holding part 2A Holding half 2B Holding half 3A One side gripping part 3B The other side gripping part 4 Connecting part 5 Axle part 6 Axle part 7 Axle part 8 Release operation part 13 Axle part K O-shaped connecting part O Shaft attachment part R Nipping lock mechanism S Movement adjustment mechanism (Expansion adjustment mechanism)

Claims (3)

[Claims] 1. In a clamping state in which a gripping portion is gripped and a holding object is gripped by the gripping portion, the three shaft mounting portions are formed into a V-shape with three intermediate shaft mounting portions as vertexes. The K-shaped connecting portion K is formed, and the gripping portion is gripped more strongly, so that the shaft-attached portion K is relatively moved in a straight or reverse-curved shape. In the pliers provided with a clamping lock mechanism in which the clamping state is locked, clamping halves provided with a clamping portion at the tip are cross-shaft mounted, and the cross-shaft mounting portion is configured to be freely openable and closable at a fulcrum. The one-side grip is provided at the base end of the holding half, and the tip of the other holding half is pivotally attached to the other end so that the other holding is opposed to the one-side grip. A structure is provided in which both gripping portions are openable and closable with each other so that the two gripping portions can be freely opened and closed with each other. And the base end of the other clamping half disposed between the two gripping portions is pivotally attached to the other gripping portion via a connecting portion, and the position of one of the pivoting portions is moved. By adjusting the movement adjusting mechanism to be adjusted, a shaft attachment portion between the tip portion of the one-side holding half body and a tip portion of the other-side grip portion, and a shaft attachment portion between the other-side grip portion and the connection portion. Further, a shaft attachment portion between the connection portion and the base end portion of the other holding half is the above-described U-shaped connection portion, and a shaft attachment portion at an intermediate position between the three shaft attachment portions is a U-shaped connection portion. A pliers with a pinching lock mechanism, wherein the pliers are configured to be a shaft attachment portion at the vertex of the relative movement of the K. 2. The pliers with a pinching lock mechanism according to claim 1, further comprising a release operating portion for pressing and returning the shaft attachment portion in the locked state which has been relatively moved. 3. A pair of clamping halves having opposed clamping portions at their ends are cross-shafted to each other so as to be openable and closable with the cross-shafted portion as a fulcrum. A side grip portion is provided, and the tip portion is pivotally attached to the tip portion of the other holding half, and the other grip portion is provided in a state facing the one grip portion, and both grip portions are opened and closed with each other. The two holding portions are configured to be freely openable and closable by being free, and the base end of the other holding half is provided so as to be located between the holding portions provided in the facing state. The base end of the other holding half is axially attached to the other holding portion via a connecting portion,
A telescopic adjustment mechanism is provided as the movement adjustment mechanism at the base end of the other holding half or at the connection part or the other side gripping part, so that at least one position of the shaft attachment part of the connection part can be freely adjusted. By providing the extension and contraction adjustment by this extension and contraction adjustment mechanism to adjust the movement, the shaft attachment portion between the tip portion of the one-side holding half body and the other-side holding portion, the other-side holding portion and the connecting portion, The shaft-attached portion and the shaft-attached portion between this connecting portion and the base end of the other holding half are the K-shaped connecting portions K. The shaft-attached portion at an intermediate position between the three shaft-attached portions is relatively It is configured to be a pivoted portion of the moving apex, and in the pinched state, the gripping portion is gripped more strongly by expansion and contraction adjustment of a telescopic adjustment mechanism, so that the shafted portion is straightened in a straight line. Alternatively, the pinch state is locked by relatively moving in the direction of The position of the shaft attachment portion is adjusted and set so that the holding portion is widened and narrowed by the opening and closing operation of any of the gripping portions. 2. A pliers with a clamping lock mechanism according to 1.