JP6722504B2 - scissors - Google Patents

Description

The present invention relates to scissors that can be used, for example, by a hairdresser (referred to as a barber and a hairdresser) in business, or when a person other than a hairdresser cuts paper or cloth.

The conventional scissors for hairdressing and beauty use first and second scissor members, in which a first scissor member having a moving blade and a second scissor member having a stationary blade are detachably and rotatably connected by a screw. Each of the bases had an annular finger hook for receiving the thumb and ring finger. With this scissors for hairdressing and cosmetics, the thumb is usually put in the annular finger hook of the first scissor member and the ring finger is put in the annular finger hook of the second scissor member to perform hair cutting work. Therefore, the scissors can be held using the annular finger hooking portion of the second scissor member and the ring finger and the middle finger. However, since there is a gap between the annular finger hooking portion of the first scissor member and the inserted thumb, the thumb is not supported. It was moving in the ring finger rest. Furthermore, since the hairdresser changes the inclination of the hairdressing scissors held in his hand to cut the hair, the operating distance of the thumb becomes long, and the entire scissors for hairdressing and beauty are supported by the ring finger, middle finger, and index finger. There was a problem that the burden on each finger was heavy.

In view of this, Patent Document 1 proposes a substantially U-shaped finger hook portion in which a part of an annular thumb hook portion for holding a thumb is removed.
Further, in Patent Document 2, the elastic means (coil spring) is constantly urged to open the blade portion, and the circular finger hook ring through which the middle finger or the ring finger is inserted is left, and the finger hook ring through which the thumb is inserted is eliminated. Hairdressing and scissors with a thumb surface have been proposed.

Japanese Patent Publication No. 3-8223 Japanese Patent No. 4249968

However, in the scissors for hairdressing and beauty treatment described in Patent Document 1, when the scissors blade portion is to be opened with the thumb, the force exerted is poor and it is difficult to use for a long time.
Further, in the scissors for hairdressing and beauty treatment described in Patent Document 2, since the scissors blade portion is always urged in the opening direction by the elastic means, it is necessary to operate the scissors member against the urging force. There was a problem of getting tired when used for a long time.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide scissors that can be easily opened and closed and can be used for a long time and that can be used for hairdressing and cosmetics or for other purposes.

The scissors according to the present invention in accordance with the above object are scissors in which first and second scissor members each having a finger hook portion on the base side are rotatably connected at the center,
The finger hook of the first scissors member serves as an annular finger hook, and the hem is connected to the annular finger hook, and the thumb hook has a hemispherical shape, a truncated cone shape (including a conical shape), or a spoon scooping portion. Is provided. Here, the hemispherical shape may be a completely hemispherical shape, a partially spherical shape, or a shape in which the diameters of the circles orthogonal to each other in plan view are different (minor diameter, major diameter). It is applied if the tip of the thumb fits inside the depression.

In the scissors according to the present invention, the depth of the thumb hook is preferably in the range of 4 to 10 mm.

In the scissors according to the present invention, it is preferable that the circumference of the thumb hook is integrally connected to the annular finger hook.

Further, in the scissors according to the present invention, the periphery of the thumb hook may be detachably connected to the annular finger hook.

In the scissors according to the present invention, first and second scissor members having finger hook portions on the base side are rotatably connected at the center to form a finger hook portion of the first scissor member in an annular shape. Since the hem has a hemispherical, frustoconical, or spoon scooping portion-shaped thumb hook portion connected to it, the following effects are obtained.

In the conventional scissors, when only the tip of the thumb is put in the annular finger hook of the first scissor member and the first scissor member is operated, there is a gap between the annular finger hook and the thumb. The contact position (point of action) between the thumb and the ring finger hook differs depending on whether the second scissor member is closed (when hair is cut) or when the first and second scissor members are opened, resulting in unnecessary movement of the thumb. However, in the case of the present invention, since the recess of the thumb hook portion into which the tip of the thumb is inserted has a narrow width at the back, there is no unnecessary movement of the thumb when opening and closing the first and second scissors members. Even if you work for a long time, you will not get tired easily.

Also, since the back of the thumb hook gradually becomes narrower, even if the size of the thumb changes, the position of the thumb does not change, and the thumb hits the annular finger hook of the first scissors member. Masters can also use this scissors in common.

Furthermore, when a beginner uses conventional scissors, the thumb tends to be inserted vertically or obliquely up to the base part of the annular finger hook of the first scissor member, but in the scissors according to the present invention, the annular finger hook is Since the thumb hook is not provided and does not penetrate, the operation position of the thumb is also determined, and even beginners can perform scissor work that does not cause fatigue.

In addition, even for beginners and veterans who have poor work efficiency, the use of this scissor corrects the way of holding scissors with poor work efficiency, the scissors are easy to cut and the fingers are ideal for less fatigue. It will be held and work efficiency will be improved.

(A) is a front view of scissors according to an embodiment of the present invention, (B) is a side view of the same, (C) is a sectional view taken along the line P-P' in FIG. 1(A), and (D) is a diagram. FIG. 1B is a cross-sectional view taken along the line QQ′ in FIG. (A) is the same rear view, (B) is the same side view. It is explanatory drawing of the use condition of the same scissors. It is explanatory drawing of the use condition of the same scissors.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1(A) to 1(D), FIG. 2(A), and (B), scissors 10 according to an embodiment of the present invention are made of hard stainless steel or special steel, and have a blade. The first and second scissors members 15 and 16 having the ring fingers 13 and 14 which are examples of finger hooks on one side (front side) and the other side (base side) of the parts 11 and 12 are provided in the middle part. It is configured to be rotatably connected by a screw 17 that is a combination of a bolt and a nut that penetrates the small hole.
The annular finger hooking portion 13 of the first scissors member 15 is provided with a thumb hooking portion 19 whose skirt is connected to the annular finger hooking portion 13.

The thumb hook portion 19 has a hemispherical shape, a truncated cone shape, or a spoon scooping portion shape, is narrowed on the back side, and has a depth d of 3 to 15 mm (preferably 4 to 10 mm). As a result, the operator's thumb 23 (see FIG. 3) smoothly fits into the thumb hook portion 19, and the fitted thumb 23 does not have a gap with the surroundings, and the inside diameter of the thumb hook portion 19 is the usual scissors. Like, it has an oval shape. The thickness of the thumb hook 19 is 1 to 2 mm.

As shown in FIG. 1(A), the direction of the depression of the thumb hook 19 is such that the annular finger hook 14 of the second scissors member 16 is on the right and the annular finger hook 13 of the first scissors member 15 is on the left. , The inner side (that is, the lower side perpendicular to the paper surface).
3 and 4 are explanatory views of the usage state when the scissors 10 are viewed from the back side, and the thumb hook portion 19 projects to the front (front side) in FIGS. 3 and 4. The scissors 10 according to this embodiment have been described for the right-handed person. However, in the case of the left-handed person, it is natural that the direction of the depression of the thumb rest is reversed.

In FIG. 1, the thumb hook portion 19 of the scissors 10 is integrally connected at its edge to the surrounding ring finger hook portion 13. In this case, the thumb hook portion 19 may be manufactured separately from the first scissors member 15 and welded or brazed to the annular finger hook portion 13, or an inner plate may be provided inside the annular finger hook portion 13 to perform press working. You may shape|mold by etc.

In some cases, the thumb rest may be removably arranged on the surrounding annular finger rest. In this case, the circumference of the thumb hook is folded back in a U-shape in cross section, and this bent back portion is hooked and fixed to the annular finger hook. Since the conventional scissors except for the thumb rest, the scissors can be used by attaching thumb rests having different shapes according to preference.

The first and second scissors members 15 and 16 are the same as ordinary scissors except for the thumb hook portion 19, and the blade portion 12 of the second scissors member 16 serves as a fixed blade (stationary blade). The blade portion 11 of the scissors member 15 serves as a movable blade, and the movable blade intersects with the fixed blade to cut the object (hair) by the shearing force.
In addition, since the ring finger hooks 13 and 14 of the first and second scissors members 15 and 16 are substantially in the same plane, the movable blade can smoothly operate with respect to the fixed blade.

A method of using the scissors (scissors for beauty treatment) 10 will be described with reference to FIGS. 3 and 4. First, the ring finger 20 is inserted into the annular finger hook portion 14 of the second scissor member 16 up to the first joint, and the second scissor member 16 is held using the middle finger 21 and the index finger 22. Regarding the second scissors member 16, the ring finger 20 and the middle finger 21 may be put in the annular finger hook portion 14. In this state, the tip of the thumb 23 is put in the thumb rest 19. Since the depth of the depression of the thumb hook 19 is constant, the insertion position of the thumb 23 is constant.

Next, the hair to be cut is placed on the blade portion (fixed blade) 12, the thumb 23 is raised (that is, brought closer to the annular finger hook portion 14 side of the second scissors member 16), and the blade portion ( The movable blade 11 is made to intersect the blade portion 12, and the blade portions 11 and 12 are closed to cut the hair as shown in FIG.
Then, the thumb 23 is immediately lowered to open the blade portions 11 and 12 as shown in FIG. 3, but since the thumb 23 is held in the recess of the thumb rest portion 19, the movement of the thumb 23 is prevented. The first scissors member 15 moves linearly. Therefore, since there is no waste in the movement of the thumb 23, there is an advantage that the hairdressing and beauty work does not get tired.

The present invention is not limited to the above-described embodiments, and the configuration can be changed without departing from the spirit of the present invention. For example, in the above-described embodiment, the second scissor member is provided with the ring finger hook portion, but the ring finger hook portion is not an essential requirement, and the second scissor member can be fixed using the ring finger, the middle finger, and the index finger. Any structure (fingers) may be used.
Further, although the present invention has been described using specific numbers, numerical limits can be removed within a range that does not change the gist.
Further, the scissors according to the present invention can be applied not only when the hairdresser uses the scissors for hairdressing and beauty, but also when the general person uses the scissors as ordinary scissors such as stationery.

10: Scissors, 11, 12: Blade part, 13, 14: Annular finger hooking part, 15: First scissor member, 16: Second scissor member, 17: Screw, 19: Thumb hooking part, 20: Ring finger, 21 : Middle finger, 22: Index finger, 23: Thumb

Claims (4)

In scissors in which first and second scissor members each having a finger hook portion on the base side are rotatably connected at the center,
The finger hook portion of the first scissors member serves as an annular finger hook portion, and the thumb hook portion having a hemispherical shape, a truncated cone shape, or a spoon scooping portion shape in which the hem portion is connected to the annular finger hook portion is provided. Characteristic scissors. The scissors according to claim 1, wherein the depth of the thumb hook portion is in the range of 4 to 10 mm. The scissors according to claim 1 or 2, wherein the periphery of the thumb hook is integrally connected to the annular finger hook. The scissors according to claim 1 or 2, wherein the periphery of the thumb hook is detachably connected to the annular finger hook.

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