JP2001187282A - Hand control tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hand control tool making use of the spring force which is easy in attachment, detachment, evacuation or storage of a spring, and excel lent convenience in use. SOLUTION: The spring 20 has a two forked shape having a pair of legs 28, and a roller 30 is fitted to a stretch portion 29 located between the legs 28. A support portion 22 supporting the spring 20 is provided on an inner wall of a grip 19a. The support portion 22 is provided with a pair of grooves 24 to integratedly form an external wall 23 and a wall 25. A support hole 26 is opened in the external wall 23, and a notch 27 is provided by cutting out the wall 25 at the position facing the support hole 26. The spring 20 can be easily moved whether or not the spring is in use by supporting the spring 20 by the support 22 in an easily turntable manner. The spring 20 can be easily attached/ detached by providing the notch 27 at the position facing the support hole 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual tool such as scissors and pliers.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a handy device such as scissors and pliers provided with a spring for urging an operating piece in an opening direction thereof. Also, various springs used in manual levers are known. For example, it is a leaf spring, a tension spring, a compression spring, or the like.

A scissor provided with a leaf spring has been proposed in Japanese Patent Publication No. 2736867. The feature of the invention in Japanese Patent No. 2736867 is that the operating piece is automatically opened by utilizing a spring force,
In addition, by moving the base end of the leaf spring, the leaf spring can be switched to the accommodation position or the use position.

[0004] According to this, there is an advantage that a small force such as an infant can be used easily without using much force, especially when opening a grip. And, when not in use, the manual lever can be stored with each operating piece closed, which has an advantage that it is convenient to carry and store.

[0005]

However, the above-mentioned patent No. 2
In the invention of No. 736867, it is difficult to directly support the leaf spring on the handle portion of the operating piece because the leaf spring is formed of a single plate-shaped article. For this reason, the base end of the leaf spring is combined with a separate support to support the leaf spring on the handle, so that the assembly of the spring and the handle is troublesome. In addition, when the leaf spring is removed, the spring cannot be directly removed from the handle, and the leaf spring must first be removed from the support, which is inconvenient for removing the spring. Further, when the leaf spring is not in use, the retracting and storing of the leaf spring is troublesome and troublesome, since the retracting and storing of the leaf spring is performed by sliding the support fixing the base end of the leaf spring.

An object of the present invention is to provide a hand-operated tool which can smoothly open and close by utilizing a spring force.
An object of the present invention is to provide an easy-to-use manual tool which is easy to assemble, remove, retract and accommodate a spring.

[0007]

According to the first aspect of the present invention, a bifurcated spring having a pair of legs and a bridging portion located between the legs is used. In both legs, supported on the handle of one of the operating pieces, the handle is provided with a wall located between the two legs, and the wall has a notch that allows the leg to pass through. It is assumed that it has been established.

Accordingly, the position of the spring can be regulated by the wall portion, and the spring can be held at a predetermined position, and the spring force can be reliably applied to the operating piece. Also,
By using a bifurcated spring with a pair of legs at the base end of the spring, the spring can be attached and detached simply by expanding and contracting between the two legs using the notch in the wall, making it easy to attach and detach the spring. Becomes

According to a second aspect of the present invention, in the first aspect of the invention, a roller is rotatably fitted to the bridging portion, and an outer peripheral surface of the roller is engaged with an inner edge of the other operating piece. The gist is that it is provided so that

Therefore, when the erection portion slides on the inner edge of the operation piece, the roller rotates, thereby reducing the resistance between the inner edge of the operation piece and the erection portion. Therefore, the opening and closing operation of each operating piece is performed smoothly.

According to a third aspect of the present invention, in the first aspect of the present invention, the spring is provided between an operating position for applying a spring force and a housing position for housing the spring therefrom. Is to be rotatable.

When the spring force is used, the function of biasing the spring force can be exerted by rotating the spring to an operation position where the spring engages with the inner edge of the operating piece.
Also, when the spring force is not used, the spring is rotated to a storage position that does not interfere with the opening and closing operation of the operating piece,
It can be easily placed out of the way. Furthermore, if the spring is arranged at the storage position, the force in the opening direction on the operating piece does not act, so that the portable unit can be carried with the operating part closed.
Can be stored.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the handle has a pair of grooves for accommodating the two legs, respectively. The gist of the present invention is that the wall portion is formed in the above.

The wall portion exerts a position regulating function that the spring can be fixed. As a result, the spring does not come off except for the position where the work of attaching and detaching the spring is performed at the place where the notch is provided. For this reason, the spring can be stably held. In addition, if a pair of grooves is provided, a wall portion is inevitably formed between them, which facilitates manufacture.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a support hole for rotatably supporting both legs is provided on both outer wall portions of the pair of grooves. The gist is that the notch is provided on the wall so as to face the support hole.

When the ends of the two legs of the spring are arranged in the cutouts, the ends of the two legs face the support holes formed in the outer walls on both sides of the wall. Therefore, the notch can be effectively used for the attaching / detaching operation, and the attaching / detaching operation can be easily performed.
In addition, since the support holes for rotatably supporting the two legs are provided on both outer wall portions of the handle portion, the spring can be easily supported on the handle portion without preparing a separate support tool. The spring can be turned around the support hole as a center of rotation.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, the scissors according to the present invention include a pair of operating pieces 11,
Each operating piece 11 is connected by a shaft 12 so as to be able to open and close.

Each operating piece 11 has blades 14a and 14b as operating portions for performing a functional operation at a distal end side, and has handle portions 15a and 15b at a proximal end side. And a pair of operating pieces 1
1 rotates the opening and closing about the shaft 12 so that the blade 1
4a and 14b open and close, and can perform the function operation as scissors.

The handles 15a, 15b are provided with synthetic resin grips 19a, 19 molded into a shape that is easy to grip. A support portion 22 for supporting the spring 20 is provided on the inner side wall of the grip 19a.

As shown in FIGS. 3 and 4, the support portion 22 includes a pair of parallel outer wall portions 23 which are part of the grip 19a, and a wall portion 25 located between the outer wall portions 23. 23
A pair of parallel grooves 24 for accommodating the two leg portions 28 are formed between the first and second wall portions 25. The outer wall portion 23, the pair of grooves 24, and the wall portion 25 are integrally formed by providing a pair of parallel grooves 24 on the inner side wall of the grip 19a.

The outer wall 23 is provided with support holes 26 for rotatably supporting the two legs 28 of the spring 20, and the wall 25 is provided with two legs of the spring 20 so as to face the support holes 26. A notch 27 through which the portion 28 can pass is formed.

Therefore, when the spring 20 is supported by the support portion 22, the position of the spring 20 is regulated by the outer wall portion 23 and the wall portion 25. Therefore, when the spring 20 is attached or detached at the place where the notch 27 is provided. , Except that the spring 20 does not come off.

As shown in FIGS. 3 and 4, the spring 20 is made of a wire spring and is composed of a pair of legs 28 and a bridging portion 29 located between the legs 28, and has a bifurcated shape. Have. The spring 20 is rotatably supported by inserting the distal ends of the pair of leg portions 28 into the two support holes 26, respectively. Therefore, the spring 20 is provided in the support hole 2.
It is possible to freely rotate between the operation position and the storage position around the rotation center 6.

The spring 20 has an urging force in a direction in which the legs 28 are opened, and the ends of the legs 28 are pressed against the support holes 26 respectively. Further, when the spring 20 is disposed at the operation position, the spring 20 has a shape that is expanded toward the erection portion 29, so that a part of the spring 20 is press-fitted between the grooves 24. Become. Accordingly, the spring 20 is pressed against the outer wall 23 and is reliably held between the outer wall 23 and the wall 25.

A roller 30 is rotatably fitted to the bridging portion 29, and in the operating position, the roller 30 is engaged with the inner edge of the other operating piece 11 on which the spring 20 is not supported. Since the roller 30 can smoothly roll the inner edge of the operation piece 11, the opening and closing of each operation piece 11 is performed smoothly.

When the spring 20 is mounted, the legs 28 are pressed inwardly of each other so that
While the gap is shortened, the tip of the leg 28 is inserted between the notches 27, and the spring 28 is used to bias each leg 28 into the support hole 26 by utilizing the urging force acting between the legs 28 in the expanding direction. Insert the tip of. Since the support hole 26 is provided in the outer wall portion 23 at a position facing the notch 27, the spring 20 can be attached very easily.

On the other hand, when the spring 20 is removed,
As shown by the solid line in FIG.
7, and thereafter, the tip of each leg 28 is taken out from the support hole 26 by pressing the legs 28 inward to each other, and then the spring 20 is easily removed from the notch 27. Can be removed.

Further, since the outer wall 23 of the grip 19a is provided with the support hole 26 for rotatably supporting each leg 28, the spring 20 can be easily gripped without preparing a separate support tool. 19a.

When the scissors are used, the spring 20 functions to bias the spring force in the opening direction of the operating piece 11 by disposing the spring 20 at the operating position (the position in FIG. 1). Therefore, when the scissors are used, the respective operating pieces 11 are automatically opened by the spring force, and the scissors can be used easily.

When the scissors are not used, the spring 20 is disposed at a storage position which does not interfere with the opening / closing operation of each of the operating pieces 11 between the grips 19a and 19b, so that the spring force on the operating piece 11 in the opening direction is reduced. Can be released. Therefore, since the spring 20 can be stored with the blades 14a and 14b closed, the scissors can be carried and stored with the blades 14a and 14b closed.

The above embodiment has the following advantages. When the scissors are used, when the spring 20 is arranged at the operating position, the respective operating pieces 11 are automatically opened by the spring force, so that the scissors can be used easily. When the spring is not used, the spring 20 is disposed at the storage position, so that the spring 2 is not used.
0 can be retracted to a position that does not interfere with the opening and closing operation of each operating piece 11. Therefore, the scissors can be conveniently carried and stored with each operating piece 11 closed.

Since the notch 27 is provided at a position facing the support hole 26, the notch 27 can be used when attaching and detaching the spring 20, and the attaching and detaching work of the spring 20 can be performed very easily.

Since the position of the spring 20 is regulated by the outer wall portion 23 and the wall portion 25, the spring 20 does not come off except when the work of attaching and detaching the spring 20 is performed at the place where the notch 27 is provided. Therefore, the scissors can be used stably.

Since the space between the two legs 28 of the spring 20 is urged in the expanding direction, the tip of the leg 28 is held in the support hole 26 in the inserted state, and the spring 20 is held in the groove 24. Is done.

When the spring 20 is arranged at the operation position, the spring 20 has a shape that is expanded toward the erection portion 29, so that a part of the spring 20 is pressed into the groove 24. Becomes Accordingly, each leg 28 is pressed against the outer wall 23, and the spring 20 is reliably held between the outer wall 23 and the wall 25.

Since the roller 30 is rotatably fitted to the bridging portion 29, the bridging portion 2 on the inner edge of the operating piece 11
9 can be smoothly slid, so that the opening and closing of each operating piece 11 can be easily performed with a small force.

The above embodiments of the present invention can be modified and implemented in the following different forms. -Each blade 14a, 14b applies this invention to a handy tool of another shape. For example, a manual delicate device such as pliers may be used.

The grips 19a and 19b are made of another material such as wood. As shown in FIGS. 5 to 14, unlike the first embodiment, the spring 20 is supported by the support portion 22 of the grip 19b. Even in such a mode, the same effects as those of the first embodiment can be obtained.

[0039]

According to the first aspect of the present invention, a bifurcated spring provided with a pair of legs is used, and a notch is formed in the wall of the support so that the leg can pass therethrough. It is possible to obtain an easy-to-use handy device that can be easily attached and detached.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in the above, since the roller is rotatably fitted to the erection portion and the outer peripheral surface of the roller is provided so as to engage with the inner edge of the other operating piece, the opening and closing movement of the operating piece is performed. It can be done smoothly.

According to the invention described in claim 3, according to claim 1
In addition to the effects of the inventions described in (1) to (2), since the spring is rotatably supported, the arrangement of the spring is facilitated, and the carrying and storage of the manual lever is convenient.

According to the invention described in claim 4, claim 1
In addition to the effects of the inventions described in (1) to (3), a pair of grooves for accommodating the both legs are provided on the handle, and the wall is formed between the grooves, so that the wall can be easily formed. Become.

According to the invention set forth in claim 5, according to claim 1,
In addition to the effects of the inventions described in (1) to (4) above, a support hole for rotatably supporting the spring is provided on both outer wall portions of the pair of grooves, and the notch is arranged on the wall portion so as to face the support hole. ,
The attachment and detachment of the spring is further facilitated. Also,

[Brief description of the drawings]

FIG. 1 is a front view of a manual lever with an operating piece opened.

FIG. 2 is a front view and a left and right side view of a manual trick with a working piece closed.

FIG. 3 is a perspective view of an inner wall of a handle.

FIG. 4 is a front view and a side view of a handle.

FIG. 5 is a front view and a rear view of a manual trick.

FIG. 6 is a right side view and a left side view of the manual trick.

FIG. 7 is a plan view, a bottom view, and A in FIG.
-A sectional drawing.

FIG. 8 is a reference front view of the manual trick device in an open state.

FIG. 9 is a sectional view taken along the line BB in FIG. 5;

FIG. 10 is a reference perspective view from the front and bottom sides of the manual lever in an open state.

FIG. 11 is a reference front view and a reference right side view of the manual lever with the spring removed.

12 is a sectional view taken along the line CC in FIG. 11;

FIG. 13 is a reference bottom view of the manual lever in a state where a spring is removed, and a DD sectional view and an EE sectional view in FIG. 11;

FIG. 14 is a sectional view taken along line FF in FIG. 11;

[Explanation of symbols]

11 ... operating piece, 12 ... shaft, 15a, 15b ... handle, 20
... Spring, 24 ... Groove, 25 ... Wall, 26 ... Support hole, 27 ...
Notch, 28: leg, 29: bridge, 30: roller.

Claims (5)

[Claims] 1. A pair of operating pieces are connected to each other so as to be openable and closable by a shaft, and a handle portion made of synthetic resin is provided on a base end side of each operating piece and an operating section for performing a functional operation is provided on a distal end side thereof. A manual lever provided with a spring for urging a spring force in an opening direction between the one operating piece and the other operating piece, wherein the spring is a pair of legs and a position between the pair of legs. The spring is supported on the handle of the operating piece at both legs thereof, and the handle is provided with a wall located between the legs, A manual lever with a cutout that allows the leg to pass through. 2. The manual lever according to claim 1, wherein a roller is rotatably fitted to the bridging portion, and an outer peripheral surface of the roller is engaged with an inner edge of the other operation piece. 3. The manual lever according to claim 1, wherein the spring is rotatable between an operation position for applying a spring force and a storage position for storing the spring therefrom. 4. The manual lever according to claim 1, wherein the handle has a pair of grooves for accommodating both legs, and the wall is formed between the grooves. 5. A supporting hole for rotatably supporting both legs respectively on both outer wall portions of the pair of grooves, and the notch is arranged on the wall portion so as to face the supporting hole. 5. The manual skill set according to any one of items 1 to 4.