JP2000210481A - Three-point supporting scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide inexpensive three-point supporting scissors wherein the structures of three rotational supporting parts are simple. SOLUTION: A pair of blades 2 and 3 are provided with shaft parts made by bending elastic materials like bows, cutter parts 7a and 7b obliquely protruded, and finger rests 10a and 10b. The pair of blades are rotatably assembled at the three points of a tip side rotational supporting part 17A, a middle rotational supporting part 17B formed by pressing the middle parts of both shaft sides to approach each other, and a base end side rotational supporting part 17C, the middle rotational supporting part 17B is positioned away from an axis connecting the other rotational supporting parts, and a spring force directed to open both cutter parts is generated between the pair of blades 2 and 3. The tip side rotational supporting part 17A is constructed by the pressure contacts of the cutter abutting parts 12a and 12b of the blades 2 and 3, and the other rotational supporting parts 17B and 17C are constructed by fitting pipes 4 and 5 respectively for a middle part and a base end to the shaft parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to three-point support scissors, and more particularly to three-point support scissors suitable for cosmetics for cutting eyebrows and the like.

[0002]

2. Description of the Related Art A shaft formed by bending an elastic material into an arc shape, a blade protruding laterally from the tip of the shaft, and a shaft protruding from the shaft to the same side as the blade. A pair of blade bodies having a finger rest are joined to each other, and a tip-side rotation support portion at the base end of both blade portions, an intermediate rotation support portion brought close by pressing an intermediate portion between both shaft portions, and both At three points of the proximal rotation support portion on the proximal side of the shaft portion, the intermediate rotation support portion projects from the axis line connecting the distal rotation support portion and the proximal rotation support portion to the finger contact. When they are mounted on the opposite side so as to be rotatable relative to each other, three-point supporting scissors can be formed.

In the three-point supporting scissors, a spring force is applied between the pair of blades in a direction in which the blade and the finger rest open, and the finger rest and the blade differ by bending the blade. Since it opens and closes on a flat surface, scissors are easy to use as cosmetics for cutting eyebrows, etc., but the structure of the three-point rotating support parts to be formed on a pair of blades constituting the scissors is complicated and simple. There is a difficulty in making it cheap.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a three-point support scissor which can make the structure of a three-point rotation support part simple and inexpensive. Another object of the present invention is to provide a holding means having a simple structure for holding a blade portion in a closed state by effectively utilizing a pipe constituting a rotation support portion. It is another object of the present invention to provide a three-point support scissor in which a means for preventing a pipe constituting a support portion from coming off can be easily configured by utilizing the holding means.

[0005]

In order to solve the above-mentioned problems, a three-point supporting scissor according to the present invention comprises a shaft formed by bending an elastic material into an arcuate shape, and a diagonal direction from a tip of the shaft. A pair of blades having a blade portion protruding from the shaft portion and a finger pad protruding from the shaft portion to the same side as the blade portion, and these blade bodies are formed such that the arc-shaped shaft portion is formed at an intermediate portion. They are joined to each other so as to be separated from each other, and the rotation support portion at the distal end at the base end of the two blade portions, the intermediate rotation support portion formed by bringing the middle portion of both shaft portions into close proximity by pressing, and the base of the both shaft portions. At three points of the proximal rotation support portion of the end, they are assembled so as to be rotatable with each other, and at this time, the intermediate rotation support portion connects the distal rotation support portion and the proximal rotation support portion. The blade body is formed so as to be located away from the axis on a side opposite to a side where the finger rest protrudes, and a pair of blade bodies is formed. In the three-point support scissors in which a spring force in a direction in which the blade portion and the finger rest are opened around each rotation support portion, the tip-side rotation support portion is provided on a pair of blade bodies. Parts are rotatably fitted to each other, and the intermediate rotation support part and the proximal rotation support part are configured by fitting pipes to the shafts of these blades. It is a feature.

The pipe fitted to the shaft portion at the intermediate rotation support portion is held by the spring force of the two shaft portions in the expanding direction, and the pipe fitted to the shaft portion at the proximal rotation support portion is attached to the pipe. The pipe which constitutes the base side rotation support section is provided with holding means for holding the finger pads provided on the pair of blades in a closed state. It is effective to provide, more specifically, holding means in the pipe constituting the proximal rotation support portion,
At the finger contact side end of the pipe slidable with respect to the shaft portion, a notch is provided to sandwich the closed finger pad from both sides. It is effective to use a locking portion that locks to the key claw on the portion, and to constitute a slip-out preventing means for preventing the pipe from slipping out of the shaft portion. Furthermore,
Instead of a pipe that is fitted to the shaft portions of the pair of blades to form a base rotation support portion, the base rotation support portion is one of the base ends of the shaft portions of the pair of blades. And a shaft hole provided on the other side are rotatably fitted to each other.

[0007]

In the above-mentioned three-point support scissors, the intermediate rotation support part of the three-point rotation support parts for assembling a pair of blades constituting the scissors is replaced with the other two rotation support parts. Since it is provided at a position away from the axis connecting the two blades, it is possible to apply a spring force in the opening direction of the blade to the pair of blades,
In this case, the intermediate rotation support portion and the proximal rotation support portion are each formed by fitting a pipe to a pair of blades or by fitting a simple small shaft and a shaft hole. The structure of the pivot support of the point support scissors can be simple and inexpensive.

Further, since the pipe constituting the base end side rotation support portion of the three-point support scissors is provided with holding means for holding the finger pads provided on the pair of blades in the closed state, the spring force is applied. By closing the blade portion to be opened by the holding means, it is possible to prevent the blade portion from being damaged or danger due to the blade portion. In addition, since the holding means merely provides a notch that sandwiches the closed finger pad from both sides in the pipe constituting the base-side rotation support portion, it can be easily configured, The prevention means for preventing the pipe from slipping out can be configured simply by providing a locking portion for turning the pipe at the cut portion inward and locking the key nail on the shaft portion at the stage of providing the cut. Can be.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. The three-point supporting scissors 1 are shown in FIGS. 6 (A) and 6 (B).
A first blade 2 and a second blade 3 as clearly shown in FIG.
And a pair of blades 2 as shown in FIGS.
3 is provided with an intermediate pipe 4 and a proximal pipe 5 constituting the intermediate pivot support section and the proximal pivot support section.

The first blade 2 shown in detail in FIG.
As shown in FIG. 4, a shaft 8a is formed of an elastic material such as spring steel so as to bend in an arc shape with respect to a joint surface with the second blade 3, and a tip of the shaft 8a. 7a protruding obliquely from the front, and a finger pad 1 protruding from the intermediate portion of the shaft 8a to the same side as the inclined side of the blade 7a.
0a and a pipe guide 11a formed by cutting out both sides of the shaft 8a near the finger rest 10a;
A rotary shaft-shaped blade portion matching portion 12a rotatably fitted to a groove-shaped blade portion matching portion 12b at a base portion of the blade portion 7b of the blade body 3; Finger rest 1
0a, and a shaft end stopper 14a for receiving the base end of the second blade body 3 formed by bending the base end of the shaft portion 8a. The blade body 2 is integrally formed of a material.

On the other hand, a second blade body 3 shown in detail in FIG. 6 (B) is almost the same shape as the first blade body 2 and is made of an elastic material such as spring steel. The shaft 8b is formed in a bow shape with respect to the joining surface of the shaft 8b, the blade 7b protruded obliquely from the tip of the shaft 8b, and the blade 7b from the middle of the shaft 8b. A finger rest 10b protruding on the same side as the inclined side, a pipe guide 11b formed by cutting both sides of the shaft part 8b near the finger rest 10b, and a base end of the blade part 7b in the shaft part 8b A groove-shaped blade portion matching portion 12b is provided and rotatably fitted with the rotary shaft-shaped blade portion matching portion 12a of the blade body 2, and is formed near the base-side finger rest 10b of the shaft portion 8b. Key 13b and a shaft base end 1 that abuts on a shaft end stopper 14a at the base end of the first blade body 2. And a b, these parts are integrally formed by material constituting both the blade body 3 like the first blade body 2.

The blade portions 7a, 7 in these blade bodies 2, 3
b constitutes scissor blades which open and close by slidingly contacting each other when the blade bodies 2 and 3 are assembled as described below, and each of the sliding contact portions is provided with a blade. The finger pads 10a and 10b are provided with finger holes 15 respectively.
The shape is not limited to the shape shown in the figure, but may be a shape excellent in design, a shape convenient for use, or the like.

The pair of blades 2 and 3 formed of a material having elasticity such as spring steel are provided with shaft portions 8a and 8 having an arcuate shape.
b so that they are separated from each other in the middle part (FIG. 2)
And FIG. 4), and the two blades 7a and 7b are assembled so as to be rotatable relative to each other, as described in detail below.
, The intermediate rotation support portion 17B formed by bringing the intermediate portion of the two shaft portions 8a and 8b into close proximity by pressing, and the base of the base end portions of the two shaft portions 8a and 8b. This is performed at three points of the end side rotation support portion 17C.

The tip-side rotation support portion 17A includes a rotary shaft-shaped blade portion matching portion 12a and a groove-shaped blade portion matching portion provided at the base ends of the blade portions 7a and 7b of the pair of blade bodies 2 and 3. 12b
(See FIG. 5 (A)) so as to be rotatable with each other (see FIG. 5 (A)). The fitting force between the blade portion matching portion 12a and the blade portion matching portion 12b is maintained by the spring force generated in the shaft portions 8a and 8b.

As shown in FIG. 6 (C), the intermediate rotation support portion 17B is provided on pipe guides 11a, 11b formed by cutting out both sides of the shaft portions 8a, 8b of the blade bodies 2, 3. It is constituted by fitting a suitable intermediate pipe 4. The intermediate pipe 4 shown in FIG. 6 (C) has a cylindrical shape that can be fitted around the pipe guides 11a, 11b, and the shaft portions 8a, 8 from the blade portions 7a, 7b side of the blade bodies 2, 3.
b and can be fitted to the periphery of the pipe guides 11a and 11b, and the intermediate pipe 4 is brought into contact with the pipe guides 11a and 11b in a state where the intermediate portions of the both shaft portions 8a and 8b are pressed close to each other.
11b, and by releasing the above-mentioned pressurization in that state, the spring force in the expanding direction generated in both shaft portions causes
The intermediate pipe 4 is held so as not to come off from the periphery of the pipe guides 11a and 11b formed by the notches (see FIG. 5B).

Similarly, the base-end side rotation support portion 17C
The base body 5 is configured by fitting a base end pipe 5 as shown in FIG. 6 (D) to the base end of the shaft portions 8a, 8b of the blade bodies 2, 3. The base end pipe 5 shown in FIG. 6D has a bottomed cylindrical shape that can be fitted on the base end side of the shaft portions 8a and 8b of the blade bodies 2 and 3, and the blade portions 7a and 7b are used when not in use. A finger pad 1 provided on a pair of blades 2 and 3 to hold the blade in a closed state
As a holding means for holding 0a, 10b in a closed state, a finger contact side end of the base end pipe 5 slidable with respect to the shaft portions 8a, 8b, that is, an opening end of the pipe 5,
A notch 18 is provided to sandwich the finger pads 10a and 10b in the closed state from both sides. In addition, the base end pipe 5
As the escape prevention means for preventing the escape from the shaft portions 8a, 8b, the key claw 13 on the shaft portions 8a, 8b is folded back by turning the pipe 5 of the cut 18 inward.
A locking portion 19 that locks to a and 13b is formed.

The base end pipe 5 is connected to a shaft 8a,
8b, and slightly move in the direction of pulling out from the lock portion 1b.
By holding the key 9 to the key claws 13a, 13b, the holding of the finger pads 10a, 10b by the cut 18 is released, and the cutting operation of the scissors by opening and closing the blade portions 7a, 7b is enabled. , Cut the pipe 5 for the base end 1
By pushing the finger rests 10a and 10b in the closed state into the shaft parts 8a and 8b until they are sandwiched from both sides,
The blade portions 7a and 7b can be held in a closed state.

The shaft portions 8a of the three-point support scissors 1 are
As can be seen from FIGS. 1 and 3, reference numeral 8b designates a position in which the intermediate rotation supporting portion 17B projects from the axis line connecting the distal rotation supporting portion 17A and the proximal rotation supporting portion 17C to the finger supports 10a and 10b. Are curved or bent, respectively, so that they are located slightly apart on the opposite side. As a result, a pair of blades 2, 3
Are rotatably mounted to each other by the intermediate pipe 4 and the base pipe 5, the blade portions 7 a and 7 b and the finger rest 10 between the pair of blade bodies 2 and 3 around the respective rotation support portions.
The spring force in the direction in which the a and b open is applied.

Assembling of the blade bodies 2 and 3 of the three-point supporting scissors 1 having the above-described structure is performed by fitting the blade matching portions 12a and 12b of the both blade bodies 2 and 3 together.
The shaft base end 14b of the second blade body 3 is brought into contact with the shaft end stopper 14a at the base end of the first blade body 2, and the longitudinal positions of the blade bodies 2 and 3 are adjusted. From the side of the parts 7a, 7b, the intermediate pipe 4 is provided with pipe guides 11a,
11b, and by fitting the base end pipe 5 to the base ends of the blade bodies 2 and 3, whereby the pair of blade bodies 2 and 3 can be easily assembled. The tip side rotation support portion 17A is formed by fitting the blade portion matching portions 12a, 12b, and the pipe guide 11a,
The intermediate rotation support portion 17B is configured by fitting the intermediate pipe 4 to 11b, and the proximal rotation support portion 17C is configured by fitting the proximal pipe 5 to the shaft portions 8a, 8b.

In the state shown in FIGS. 1 and 2, the three-point supporting scissors 1 sandwich a pair of finger pads 10a and 10b between fingertips and resist the spring force of the rotation supporting portions 17A, 17B and 17C. When the blade portions 7a and 7b of the blade bodies 2 and 3 are opened and closed, the object can be cut by the blade provided on the blade portions 7a and 7b. When the pair of finger pads 10a and 10b is released, the spring force is released. As a result, the blade bodies 2 and 3 return to the states shown in FIGS. 1 and 2, and the blade portions 7a and 7b are opened. Therefore, by pressing the finger pads 10a and 10b, for example, eyebrows and beards can be easily cut.

With the pair of finger rests 10a and 10b sandwiched between the fingertips, the proximal end pipe 5 is pushed into the shaft portions 8a and 8b, and the notches provided in the proximal end pipe 5 as shown in FIGS. When the finger rests 10a, 10b are sandwiched by 18, the blade bodies 2, 3 are locked with the blade portions 7a, 7b closed. In this state, the base pipe 5 is connected to the shaft 8a,
When the fingertips 10a and 10b are slightly pulled out, the gripping of the finger rests 10a and 10b by the notch 18 is released, so that the blade portions 7a and 7b are opened as shown in FIGS. State.

In the above-described embodiment, the three-point support of the pair of blades 2 and 3 is achieved by using the blade matching portion 12 formed on the pair of blades 2 and 3.
a, 12b and the fitting of the two pipes 4, 5 to these blades, the rotation support mechanism of the pair of blades 2, 3 is simple, and the three-point scissors 1 are thereby provided. Can be inexpensive. The notch 18 provided in the base end pipe 5 allows the pair of blades 2
Since the blade portions 7a and 7b provided in 3 can be held in a closed state, the blade portions 7a and 7b may be damaged by hitting other objects in the opened state, or may be injured by the blade portions 7a and 7b. Can be prevented.

Further, blade portions 7a, 7 provided on blade bodies 2, 3
key claw 13a, 13b provided on the blade when the base end pipe 5 is slightly pulled out in order to open b by spring force.
When the notch 18 is provided in the base pipe 5, the notch portion is formed by folding the notch portion into the base pipe 5. In this regard, the structure is extremely simple also in this respect, and the product can be provided at low cost.

FIG. 7 shows another embodiment of the present invention.
Shaft portions 8a and 8b of a pair of blade bodies 2 and 3 in the embodiment.
Instead of the base end pipe 5 that is fitted to the base end side rotation support portion 17C, the base end side rotation support portion 17C is connected to the shaft portions 28a and 28b of the pair of blades 22 and 23. A small shaft 35b provided on one shaft base end 34b and a shaft hole 35a formed in a shaft end stopper 34a formed by bending the base end of the other shaft portion 28a are rotatably fitted to each other. It is constituted by. The other configurations and operations in this embodiment are the same as those in the above-described embodiment, and thus description thereof is omitted.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal sectional front view of an unlocked state of an embodiment of a three-point supporting scissors according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a partially longitudinal sectional front view of the locked state.

FIG. 4 is a plan view of the same.

5 (A) to 5 (C) respectively show a-a in FIG.
It is a cut end view in a, bb, and cc line.

6 (A) to 6 (D) are front views of components of the three-point support scissors according to the present invention.

FIG. 7 is a partially broken plan view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-point support scissors 2, 3, 22, 23 Blade body 4 Intermediate pipe 5 Base end pipe 7a, 7b Blade part 8a, 8b, 28a, 28b Shaft part 10a, 10b Finger contact 12a, 12b Blade part matching part 17A , 17B, 17C Rotation support part 18 Notch (holding means) 19 Engagement part (meaning prevention means) 35a Shaft hole 35b Small shaft

Claims (5)

[Claims] 1. A shaft formed by warping in an arcuate shape with an elastic material, a blade protruding obliquely from the tip of the shaft, and protruding from the shaft on the same side as the blade. And a pair of blades having a finger rest which has been set, and these blades are joined to each other such that the shaft portions forming the arc shape are separated from each other at an intermediate portion, and the distal ends of the base ends of the both blade portions are rotated. The support part, the intermediate rotation support part formed by bringing the middle part of the two shaft parts into close proximity by pressing, and the base rotation support part of the base end parts of the two shaft parts are rotatable with each other. At this time, the intermediate rotation support portion is located at a position away from an axis line connecting the distal-side rotation support portion and the proximal-side rotation support portion to a side opposite to a protruding side of the finger rest. By forming the blade body, a spring force is exerted between the pair of blade bodies in a direction in which the blade part and the finger pad are opened around each rotation support part. In the three-point support scissors adapted to be used, the tip-side rotation support portion is configured by rotatably fitting a blade portion matching portion provided on a pair of blades with each other, and an intermediate rotation support is provided. The three-point support scissors, characterized in that the part and the proximal rotation support part are constituted by fitting a pipe to the shaft part of these blades. 2. A pipe fitted on a shaft portion at an intermediate rotation support portion is held by a spring force in an expanding direction on both shaft portions, and is connected to a pipe fitted on the shaft portion at a proximal rotation support portion. 3. The three-point support scissors according to claim 1, further comprising escape prevention means for preventing escape from the shaft portion. 3. The pipe according to claim 1, further comprising a holding means for holding a finger rest provided on the pair of blades in a closed state, on the pipe constituting the base side rotation supporting portion. Three-point support scissors as described. 4. A closed finger rest is sandwiched from both sides by a finger rest side end of said pipe slidable with respect to a shaft part of a holding means of a pipe constituting a base end side rotation support part. By forming a cut, the pipe at the cut is turned inward to form a locking portion that locks to the key claw on the shaft, thereby forming a means for preventing the pipe from falling out of the shaft. The three-point support scissors according to claim 2 or 3, wherein the scissors are provided. 5. A shaft formed by bending an elastic material into an arc, a blade protruding obliquely from the tip of the shaft, and protruding from the shaft to the same side as the blade. And a pair of blades having a finger rest which has been set, and these blades are joined to each other such that the shaft portions forming the arc shape are separated from each other at an intermediate portion, and the distal ends of the base ends of the both blade portions are rotated. The support part, the intermediate rotation support part formed by bringing the middle part of the two shaft parts into close proximity by pressing, and the base rotation support part of the base end parts of the two shaft parts are rotatable with each other. At this time, the intermediate rotation support portion is located at a position away from an axis line connecting the distal-side rotation support portion and the proximal-side rotation support portion to a side opposite to a protruding side of the finger rest. By forming the blade body, a spring force is exerted between the pair of blade bodies in a direction in which the blade part and the finger pad are opened around each rotation support part. In the three-point support scissors to be used, the tip-side rotation support portion is configured by rotatably fitting a blade portion matching portion provided on a pair of blades with each other, and the intermediate rotation is performed. The support portion is configured by fitting a pipe to the shaft portion of the pair of blades, and the base-side rotation support portion is provided with a small shaft provided at one of the base ends of the shaft portions of the pair of blades, and the like. The three-point support scissors, characterized in that the shaft holes provided on the other side are rotatably fitted to each other.