JPH1148154A - Drawing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drawing tool capable of easily carrying out work and extremely excellent in workability. SOLUTION: This drawing tool draws a wire 1 drawn out of a wire clamp 2 against a wire fastening metal fitting 2 to engage the inserted wire 1 impossible to draw out, constituted into a head end opening and closing type tool 3 to widen and narrow an opposed interval of an opening and closing part 5 on the head end side on the opposite by gripping and operating a base end side gripping part 4 of a pivotal installation part, a metal fitting holding part 6 to fit and hold the wire clamp 2 on one of head end side opening and closing parts 5a free to connect and disconnect is provided, and a wire locking part 7 to lock and hold the wire 1 drawn out of the wire clamp 2 on the other of the head end side opening and closing parts 5b is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tightening tool.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 17, an end of a wire 1 is passed through a ring member 9 to form an annular portion 1a, and the annular portion 1a is tightened. There is an operation of securely connecting the wire 1 and the ring member 9. Symbol 2 is the inserted wire 1
17 is a known wire clamp (“Gripple (trade name)”) that can lock the wire 1 so that it cannot be pulled out. The wire 1 has a wire 1 inserted into an insertion hole (not shown) in FIG.
When the wire 1 is inserted in the middle a and a 'directions, the wire 1 can be inserted without being locked. On the contrary, when the wire 1 is inserted in the b and b' directions in FIG. A detachment prevention mechanism is provided. Therefore, the wire 1 can be inserted only one way through the wire fastener 2.
Once the wire 1 is inserted, the wire 1 cannot be pulled out unless a wire or the like is inserted from the insertion hole to release the locking action on the wire 1 (the same reference numerals are given to the same components as those in the present embodiment). did.).

[0003] At the time of the work using the wire fastener 2, the wire fastener 2 is held with one hand and the wire 1 is held with the other hand, and the tip of the wire 1 is fastened with the wire. The wire 1 is inserted into a first insertion hole (not shown) of the metal fitting 2, and the wire 1 protruding from the first extraction hole 2 a for a predetermined length is passed through the ring member 9 and bent to form an annular portion 1 a, and the distal end of the wire 1 is formed again. Is inserted into the second insertion hole 2b of the wire tightening fitting 2 and protrudes from a second extraction hole (not shown), and the wire 1 protrudes from the second extraction hole.
Is formed with the wire 1 by pinching and pulling out with a holding tool P such as pliers or a tensioner.
(Hereinafter referred to as the conventional method).

[0004] By the way, when the work is performed by the conventional method, it is difficult to perform the work because the front end holding portion of the holding tool P for holding the wire 1 is slippery. That is, in order to reliably pull out the wire 1 while preventing the tip holding portion of the holding tool P for holding the wire 1 from slipping, the wire 1
Must be drawn straight out according to the axis of the insertion hole, and of course, the gripping tool P must be firmly held to hold the wire 1 securely (for example, if the wire 1 is inserted into the axis of the insertion hole). If the wire 1 is not pulled out straight according to the above, the wire 1 cannot be smoothly inserted into the insertion hole, so that the wire 1 must be pulled out extra strongly.)

[0005] Therefore, in the conventional method, the work is troublesome because the tip holding portion of the holding tool P for holding the wire 1 is slippery. In addition, one hand firmly holds the wire clamp 2 and the other hand. In this case, the wire 1 must be pulled out strongly while securely holding the wire 1 with the holding tool P, so that the work cannot be performed satisfactorily and the workability is extremely poor.

[0006] In the conventional method, it is extremely difficult to adjust the amount of tightening of the wire 1. That is, if the user does not know how to pull the wire 1, the wire 1 may be pulled out too much. As described above, the wire 1 that has been pulled out is released from the insertion hole by, for example, inserting a wire or the like to release the locking action to the wire 1. If the wire 1 is unnecessarily pulled out unnecessarily, the wire 1 needs to be adjusted carefully every time the wire 1 is unnecessarily pulled out. Therefore, also in this point, there is a problem that workability is extremely poor in the conventional method.

[0007] The present invention provides a tightening tool that solves the above-mentioned problems.

[0008]

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

A tightening tool for tightening the wire 1 pulled out from the wire fastening fitting 2 with respect to the wire fastening fitting 2 which locks the inserted wire 1 so that the wire 1 cannot be pulled out. A gripping operation of the end-side gripping portion 4 constitutes a front-end opening / closing tool 3 in which an opposing gap of the opening / closing portion 5 on the opposite end side is widened and narrowed, and the one end-side opening / closing portion 5a is provided with the wire fastening fitting. A metal holding portion 6 for detachably locking and holding the wire 2 is provided, and a wire 1 pulled out from the wire fastening metal fitting 2 is provided to the other end side opening / closing portion 5b.
The wire tightening tool according to claim 1, further comprising a wire locking portion 7 for removably locking and holding the wire.

Further, the tip openable tool 3 is characterized in that the grip portion 4 on the proximal end side is urged in the opening direction and the opening and closing portion 5 on the distal end side is urged in the closing direction. The tightening tool according to claim 1.

When the opening / closing portion 5 on the distal end side is opened in the opening direction, the wire 1 is locked by the wire locking portion 7 so that the wire 1 is locked. When performing the closing operation, the wire locking portion 7
The tightening tool according to any one of claims 1 and 2, wherein a lock release switching mechanism (8) for switching the lock holding state to the wire (1) to a released state is provided. It is related.

When the opening / closing section 5 is closed in the closing direction from the open state, the wire locking section 7 is closed.
From the state in which the locked and held state to the wire 1 is released,
The lock release switching mechanism 8 is configured to be automatically switched by a gripping operation of the grip portion 4 so that the lock release switching mechanism 8 can automatically return to the locked holding state to the wire 1 again. A tightening tool according to claim 3.

Further, the tip openable tool 3 is provided with a switching operation section 20 which can be operated to switch from a state in which the wire locking section 7 is locked and held to the wire 1 to a state in which the locked holding state is released. When the opening / closing section 5 is in the open state, the switching operation section 20 in the state where the wire holding section 7 is released from the state of holding and holding the wire 1 is fixedly held, and the opening / closing section 5 is closed. A lock mechanism that can release the fixed holding state to the switching operation unit 20 with
A switching operation unit 20 of the lock mechanism 21 is provided.
When the fixed holding state is released, the wire locking portion 7
5. A structure in which a state is provided in which a state in which the locked state of the wire 1 is released is automatically restored to a state in which the wire 1 is locked and held again. The present invention relates to the tightening tool described in (1).

[0014]

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.

According to the present invention, in use, for example, with the wire 1 being inserted through the wire fastener 2, the wire fastener 2 is provided on one tip side opening / closing portion 5 b of the tip opening / closing tool 3. The wire 1 pulled out from the wire tightening fitting 2 is locked and held by the wire locking portion 7 provided on the other opening / closing portion 5a on the other end while the wire 7 is locked and held by the portion 7. Then, the tip opening and closing type tool 3
The opening / closing portion 6 on the distal end side is widened by gripping the proximal holding portion 4 of the pivoting portion according to the above, so that the wire 1 pulled out from the wire fastener 2 can be tightened.

Since the present invention is configured as described above, work can be performed better than in the conventional method, and workability can be dramatically improved. That is, as in the above-described conventional method, it is necessary to hold the wire clamp 2 firmly with one hand and strongly pull out the wire 1 with the other hand while securely holding the wire 1 with the clamping tool P. Unlike the troublesome work, it is possible to tighten the wire 1 pulled out from the wire clamp 2 simply by lightly gripping the proximal grip 4 with one hand, for example, using pliers. Since it can be done, the work can be done easily, and it is a tightening tool that exhibits an unprecedented epoch-making effect such as extremely excellent workability.

[0017]

1, 2, 3, 4, 5, 6, 7, 8, 9 are the first embodiment of the present invention, and FIGS. 10, 11, 12, 13, 14, 15, 16 are the second embodiment of the present invention. Two examples are described below.

A first embodiment will be described.

In the first embodiment, as shown in FIGS. 1 and 2, there is provided a tip-opening / closing tool 3 in which a pair of holding halves 3a and 3b are pivotally attached at positions near the respective tips. ,
By gripping the proximal grip portion 4 of the distal opening / closing tool 3, the opposing interval of the opposite distal opening / closing portion 5 can be widened or narrowed. Specifically, a pair of bent-shaped holding halves 3a and 3b are provided, and the bending portions 3a 'and 3b' of the holding halves 3a and 3b are overlapped with each other.
Therefore, the front opening / closing tool 3 widens the facing gap of the opening / closing section 5 on the distal side (by opening in the opening direction) by reducing the facing gap of the grip section 4 on the proximal end side (by closing in the closing direction). Open operation).

In the vicinity of the base end of the pivoting portion of the openable / closable tool 3 near the base end, as shown in FIGS. 1 and 2, a spring 9 (spiral laminated plate) which constantly urges the gripping portion 4 in the opening direction. (Spring) is provided. Accordingly, since the opening / closing section 5 is always urged in the closing direction, the state where the grip section 4 is gripped is
The opening / closing section 5 can be returned from the open state to the closed state through the closing operation satisfactorily simply by weakening the gripping portion 4. As shown in FIGS. 1, 2, and 3, a tip end of one of the holding half bodies 3a (one tip side opening / closing portion 5a) is provided with a bottom material 6a and a rising shape from both left and right ends of the bottom material 6a. And left and right side members 6b and 6c having bent pieces 6b 'and 6c' provided at an upper end thereof at predetermined intervals and having locking plate members 6d and 6e provided at an end thereof at predetermined intervals. A metal fitting holding portion 6 is provided, which has a predetermined space in which the wire fastening metal 2 can be detachably arranged. The bending pieces 6b ', 6 according to the metal fitting holding portion 6
The interval P of c ′ is set to an interval capable of preventing the upward movement (disengagement) by the contact of the wire fastener 2 arranged in the hardware holder 2, and the locking plate members 6 d and 6 e. Can be passed only through the wire 1 while the wire fastener 2 disposed in the metal holder 6 is in contact with the wire fastener 2 to prevent the wire fastener 2 from moving (falling) in the distal direction. The interval is set.

At the distal end of the other clamping half 3b (the other distal opening / closing portion 5b), a bent receiving portion 11 formed by bending the distal end of the clamping half 3b is provided. A locking portion 10a having locking teeth 10a 'provided at the tip of a rod 10 rotatably mounted on a shaft, and a wire fastening fitting locked and held by the fitting holding portion 6. Wire locking portion 7 that can lock and hold wire 1 pulled out from wire 2
Is provided.

The rod 10 is always urged via the ridge 12 in the direction in which the locking portion 10 a provided at the tip of the rod 10 tries to contact the bent receiving portion 11. End grip 10
By rotating (gripping operation) b, the bent receiving portion 11 of the wire locking portion 7 and the locking portion 10a can be brought into contact with or not in contact with each other. The wire 1 can be locked and held by the lock 11 and the locking portion 10a, or the wire 1 can be switched to a released state. This is the switching operation unit 20 described in the claims. When the opening / closing unit 5 on the distal end opens in the opening direction, the switching operation unit 20 locks the wire 1 by the wire locking unit 7. In the locked state,
When the opening / closing section 5 performs the closing operation in the closing direction, a lock release switching mechanism 8 that switches the state in which the wire holding section 7 locks and holds the wire 1 to the released state.
It constitutes.

When the opening / closing section 5 is in an open state, a wire locking section 7 is provided at a base end side position near the pivoting section of the tip opening / closing tool 3.
The switching operation unit 20 in the state where the locking and holding state to the wire 1 is released is fixed and held, and the opening and closing unit 5 is closed to release the fixed holding state to the switching operation unit 20. A lock mechanism 21 is provided.
Further, when the lock mechanism 21 according to the present embodiment releases the fixed holding state of the lock mechanism 21 to the switching operation unit 20, the wire locking unit 7 releases the locked holding state of the wire 1. Then, it is configured to automatically return to the locked and held state to the wire 1 again.

More specifically, as shown in FIG. 4, the locking mechanism 21 is a plate-like member having one insertion half 13a formed at one end thereof and fixed to the other holding half 3a with a screw body 15. Insert
13 and a plate-like locking body 14 having a suitable elasticity and fixed to the other holding half 3b by a screw body 16 and having a rising protruding piece 14b formed at the tip. When the opening / closing section 5 is opened in the opening direction as shown in FIGS. 4 and 5, the insertion step 13a provided at the tip end of the insertion body 13 engages with the locking body.
14 is inserted into the inserted portion 14a, and the inserted body 13 is
When the locking body 14 is pushed up, the rising protrusion 14b provided at the tip end of the locking body 14 rises (projects in the direction of the arrow Y in FIG. 4). 10 is rotated against the bias, and the gripping portion 10 of the rod-shaped body 10 is rotated.
When b rises over the elasticity of the rising protrusion 14b, the grip portion 10b of the rod 10 comes into contact with the rising protrusion 14b and is fixed and held.

Further, when the opening / closing section 5 is closed in the closing direction, the insert 13 that has pushed up the locking body 14 comes off the inserted section 14a, so that the rising projection of the locking body 14 The piece 14b descends and the fixed holding state of the rod 10 to the grip portion 10b is released, and at the same time, the rod 10 returns to the original position by the urging of the spring 12. Therefore, the wire locking portion 7 can automatically return to the locked and held state to the wire 1 again from the state in which the locked and held state of the wire 1 is released.

The openable / closable tool 3 constructed as described above
Will be described with reference to the drawings.

First, as shown in FIG. 6, the wire 1 is inserted into the wire fastener 2 in the same manner as in the conventional method, and in this state, the wire fastener 2 is placed in the metal holder 6. Then, the wire 1 pulled out from the wire fastening fitting 2 is locked and held while being held between the bent receiving portion 11 and the locking portion 10a of the wire locking portion 7.

Subsequently, as shown in FIG.
Is operated in the closing direction to open and close the opening / closing section 5 in the opening direction. Then, the opening / closing section 5 becomes the metal holding section 6
Then, the wire 1 is tightened and held, and the wire 1 is opened in the opening direction while the wire 1 is locked and held by the wire locking portion 7, so that the wire 1 is tightened.

Subsequently, as shown in FIG.
As described above, the grip 10b of the rod 10 is locked by the lock mechanism 21 by rotating the rod 10 related to the switching operation unit 20 against the bias while keeping the opening open. The rising protrusion 14b of the body 14 is fixed and held.

Subsequently, as shown in FIG.
When the opening / closing section 5 is closed in the closing direction by weakening the gripping force, the rod 10 moves up with the rising protrusion 14 b of the locking body 14 related to the lock mechanism 21.
The fixed holding state with b is released, and the original position is returned by the urging of the spring 12. At this time (when the opening / closing section 5 is closed in the closing direction from the open state and closed),
The wire locking portion 7 automatically returns to the locked and held state to the wire 1 again from the state in which the locked and held state to the wire 1 is released.

As described above, the wire 1 pulled out from the wire tightening fitting 2 has been tightened by H in FIG.

In order to further increase the amount of tightening of the wire 1 pulled out of the wire fastener 2, it is possible to continuously and satisfactorily perform the above operation.

Thus, according to the present embodiment, work can be performed better than in the conventional method, and workability can be dramatically improved. That is, as in the above-described conventional method, it is necessary to hold the wire clamp 2 firmly with one hand and strongly pull out the wire 1 with the other hand while securely holding the wire 1 with the clamping tool P. Unlike the troublesome work, the wire 1 pulled out from the wire clamp 2 can be tightened simply by lightly holding the proximal grip 4 with one hand, for example, using pliers. The work can be easily performed and the workability can be extremely improved. Further, by repeating the gripping operation of the gripping portion 4 or increasing or decreasing the gripping force of the gripping portion 4, the delicateness of the wire 1 can be improved. It is extremely excellent because the amount of tightening can be adjusted.

Further, the tip opening / closing tool 3 is configured such that the grip portion 4 on the base end side is urged in the opening direction and the opening / closing portion 5 on the distal end side is urged in the closing direction. Good tightening work. That is, for example, each time the gripping unit 4 is gripped, the gripping unit 4 is gripped by the hand opposite to the hand gripping the gripping unit 4.
It is not necessary to return the gripper 4 to its original state, and it is possible to return the gripper 4 to the original state simply by weakening the gripping force of the gripper 4. Excellent workability.

When the opening / closing section 5 on the distal end side is opened in the opening direction, the wire 1 is locked by the wire locking section 7 so that the wire 1 is locked, and the opening / closing section 5 is moved in the closing direction. When the closing operation is performed, a lock release switching mechanism 8 that switches the state where the wire locking portion 7 is locked and held to the wire 1 is released is provided. By releasing the state of holding the wire 1 pulled out from the wire 1 and holding this state, the user can hold the wire 1 with the hand opposite to the hand gripping the grip portion 4 while holding the unlocked state. It is not necessary to return the part 4 to its original state, and the state can be returned to the state of the grip part 4 simply by weakening the force of the hand holding the grip part 4, so that the work can be easily performed and the workability is extremely excellent. Will be.

Further, the lock release switching mechanism 8 causes the opening / closing portion 5 to close (return) the closing direction, so that the release holding state of the wire 1 is automatically released and the wire locking portion 7 Since the locking state can be restored, the gripping portion 4 is simply grasped with one hand, for example, when the wire 1 is tightened only once and then the wire is to be tightened once more continuously. Since the tightening amount can be increased simply by repeating the operation, the work can be performed easily and the workability is extremely excellent.

In the present embodiment, the clamping halves 3a and 3b constituting the openable / closable front end tool 3 are pivotally mounted at a position close to the front end. The facing distance between the gripping portions 6 is widened, so that a strong tightening force in the opening / closing portion 5 can be obtained by gripping the gripping portion 4 lightly.

A second embodiment will be described.

In the second embodiment, as shown in FIGS. 10 to 12, a locking mechanism 21 is provided at a position near one of the metal fitting holding portions 6 of one of the holding halves 3a so as to be able to be protruded and retracted via a projection 17.
18 and a lock mechanism 21 formed by a groove 19c 'provided in a bent portion 19c of a U-shaped rod 19 related to a switching operation portion 20 provided at the tip of the other holding half 3b. It has been adopted.

An example of use of the second embodiment will be described with reference to the drawings.

As in the first embodiment, as shown in FIG. 13, the wire 1 is placed in the metal holder 6 with the wire 1 being inserted through the metal fastener 2 and pulled out from the metal fastener 2. The held wire 1 is locked and held while being held between the bent receiving portion 11 of the wire locking portion 7 and the locking portion 19 a provided at the tip of the rod 19.

Subsequently, as shown in FIG.
Is operated in the closing direction to open and close the opening / closing section 5 in the opening direction. Then, the opening / closing section 5 is opened in the opening direction while the wire fastener 2 is locked and held by the metal holding section 6 and the wire 1 is locked and held by the wire locking section 7, so that the wire 1 is tightened. Will be done.

Subsequently, as shown in FIGS. 12 and 15, the rod 19 relating to the switching operation unit 20 is rotated against the urging of the spring 22 so that the grip of the rod 19 is held. The projection 19b of the lock mechanism 21 provided on the other holding half 3b is moved over the projection 19b and is fixed and held in the groove 19c '.

Subsequently, as shown in FIG.
When the opening / closing portion 5 is closed in the closing direction by weakening the gripping force, the projection 18 moves through the groove 19c 'of the rod 19 in FIG.
By moving in the middle X direction, the fixed holding state is released, and the rod 19 returns to its original position by the urging of the spring 22. At this time (when the opening / closing portion 5 is closed by moving the opening / closing portion 5 in the closing direction in the closing direction), the wire locking portion 7 releases the locking / holding state to the wire 1 and then returns to the wire 1 again. This automatically returns to the locked state.

As described above, the wire 1 pulled out from the wire tightening fitting 2 has been tightened by H in FIG.

The rest is the same as in the first embodiment.

[0047]

Since the present invention is constructed as described above, the work can be performed better than the conventional method, and the workability can be dramatically improved. That is, as in the above-described conventional method, it is necessary to hold the wire clamp 2 firmly with one hand and strongly pull out the wire 1 with the other hand while securely holding the wire 1 with the clamping tool P. Unlike the troublesome work, the wire 1 pulled out from the wire clamp 2 can be tightened simply by lightly holding the proximal grip 4 with one hand, for example, using pliers. The work can be easily performed, and the workability is extremely excellent. Moreover, by repeating the gripping operation of the gripping portion 4 or by increasing or decreasing the gripping force of the gripping portion 4, the delicateness of the wire 1 can be improved. It is a tightening tool that exhibits an unprecedented breakthrough effect such as the ability to adjust the amount of tightening.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a side view showing the first embodiment.

FIG. 3 is a perspective view illustrating a first embodiment.

FIG. 4 is an explanatory perspective view of a main part according to the first embodiment.

FIG. 5 is an AA sectional view of a main part according to the first embodiment.

FIG. 6 is a front view illustrating a use state of the first embodiment.

FIG. 7 is a front view illustrating a use state of the first embodiment.

FIG. 8 is a front view illustrating a use state of the first embodiment.

FIG. 9 is a front view illustrating a use state of the first embodiment.

FIG. 10 is a front view showing a second embodiment.

FIG. 11 is a side view showing a second embodiment.

FIG. 12 is a BB cross-sectional view of a main part according to the second embodiment.

FIG. 13 is a front view illustrating a use state of the second embodiment.

FIG. 14 is a front view illustrating a use state of the second embodiment.

FIG. 15 is a front view illustrating a use state of the second embodiment.

FIG. 16 is a front view illustrating a use state of the second embodiment.

FIG. 17 is a perspective view illustrating a conventional method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire 2 Wire fastening metal fitting 3 Tip opening / closing tool 4 Gripping part 5 Opening / closing part 5a Tip side opening / closing part 5b Tip side opening / closing part 6 Hardware holding part 7 Wire locking part 8 Lock release switching mechanism 20 Switching operation part 21 Lock mechanism

Claims (5)

[Claims] 1. A tightening tool for tightening a wire pulled out from a wire fastener against a wire fastener which locks an inserted wire so that the wire cannot be pulled out. The open / close portion on the opposite front end side is widened and narrowed by gripping operation of the gripping portion to constitute a front end opening / closing tool, and the wire fastener is detachably locked to this one front side opening / closing portion. A tightening tool comprising: a fitting holding portion for holding the wire; and a wire locking portion for detachably locking and holding a wire drawn from the wire fastening fitting on the other end side opening / closing portion. 2. The front opening / closing tool is configured such that a grip portion on a proximal end side is urged in an opening direction and an opening / closing portion on a distal side is urged in a closing direction. 1. The tightening tool according to 1. 3. When the opening / closing portion on the distal end side opens in the opening direction, the wire is held by the wire locking portion in a locked state, and the opening / closing portion closes in the closing direction. The lock release switching mechanism for switching the wire locking portion to a state in which the wire locking portion is locked and held on the wire is provided. The tightening tool described in the section. 4. When the opening / closing section is closed by closing the opening / closing section in the closing direction from the open state, the wire locking section releases the locking / holding state to the wire and then locks / holds to the wire again. 4. The tightening tool according to claim 3, wherein the lock release switching mechanism is configured to be automatically switched by a gripping operation of a gripping part so that the state can be automatically returned to a state. 5. A switching operation section which can be operated to switch from a state in which a wire is locked and held to a wire in a wire locking section to a state in which the locked and held state is released, and wherein the opening and closing section is opened. In the state, the switching operation unit in a state in which the state of retaining and holding the wire in the wire locking unit is released is fixed and held, and the opening and closing unit is closed to perform the fixed holding to the switching operation unit. A lock mechanism capable of releasing the state is provided, and when the fixed holding state to the switching operation unit in the lock mechanism is released, the wire locking unit is connected to the wire again from the state where the locked holding state of the wire is released. The tightening tool according to any one of claims 1 to 4, wherein the tightening tool is provided so as to automatically return to the locked state.