JP7198874B1 - barber scissors - Google Patents

Abstract

An object of the present invention is to reduce the physical burden in cutting work for a user who has difficulty in stably gripping scissors for hairdressing and beauty. A stationary blade unit having a stationary blade, a stationary blade handle portion and a stationary blade ring portion; a moving blade unit including a moving blade, a moving blade handle portion and a moving blade ring portion; and a fulcrum shaft portion. an elongated moving-blade-side adjusting hole is formed in the moving-blade handle, and the moving-blade ring portion is movable in the moving-blade-side adjusting hole in the longitudinal direction and perpendicular to the longitudinal direction. A connecting portion for the moving blade is provided so as to be rotatably inserted in a direction around the shaft and connected to the handle portion for the moving blade, and the connecting portion for the moving blade in the moving blade side adjustment hole is provided. The position and orientation of the movable blade ring portion with respect to the movable blade can be adjusted according to the movement and rotation. [Selection drawing] Fig. 1

Description

The present invention relates to hairdressing scissors for cutting hair.

A structure of scissors for hairdressing and beauty is known that enables a special cutting technique to be realized and also reduces the cutting burden on the hairdresser.

For example, in Patent Document 1, when a special cutting technique is adopted and the way of holding hairdressing scissors is changed, the angle of the handle, which is the part where the finger is placed so as to match the position of the finger in the cutting technique to be adopted, is described. Disclosed are hairdressing scissors that allow adjustment of the

JP 2007-167097 A

By the way, no hairdresser has the same finger characteristics. For example, the finger balance varies from hairdresser to hairdresser. In addition, there are some barbers and beauticians who have difficulty in gripping hairdressing scissors stably due to a narrow range of motion of their fingers due to factors such as aging, accidents, and diseases.

When such a hairdresser uses normal hairdressing scissors standardized to a certain standard, it is difficult to hold the hairdressing and beauty scissors stably if they do not fit the fingers of the hairdresser. In some cases, an unreasonable burden is placed on the fingers, which may cause stiff shoulders and tendonitis. Especially in recent years, with the aging of barbers and beauticians, the number of salons with low fees, which is rapidly increasing, is increasing the time required for treatments. It is a big physical burden for the beautician.

In recent years, cutting techniques have become more diversified, and some of these cutting techniques require a change in how hairdressing scissors are held. If normal hairdressing scissors are used at this time, the hairdresser will have to hold them in an unreasonable way in order to realize the cutting technique, and there is a possibility that the hairdresser will have a great physical burden compared to the normal cutting work. .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to reduce the physical burden of cutting work regardless of the range of movement of the fingers of each hairdresser.

The hairdressing and beauty scissors according to the present invention comprise a static blade, a static blade handle continuous with the base of the static blade, and the static blade handle into which the fingers of a hairdresser (user) can be inserted. a stationary blade unit having a stationary blade ring portion continuous to one end of the stationary blade unit; a moving blade; a moving blade handle portion continuous to the base of the moving blade; a moving blade unit having a moving blade ring portion continuous with one end portion of the moving blade handle portion; and a fulcrum shaft portion rotatably connecting the stationary blade unit and the moving blade unit to each other. An elongated moving-blade-side adjustment hole is formed in the moving-blade handle portion, and an axis perpendicular to the longitudinal direction is provided in the moving-blade ring portion so as to be movable in the longitudinal direction of the moving-blade-side adjusting hole. A moving blade connection part is provided that is inserted in a rotatable state in the direction around the axis of the moving blade and is connected to the moving blade handle part, and the movement of the moving blade connection part in the moving blade side adjustment hole and The position and orientation of the movable blade ring portion with respect to the movable blade can be adjusted according to the rotation.

As a result, by moving and rotating the movable blade connecting portion, the position and orientation of the movable blade ring portion with respect to the movable blade can be adjusted according to the size of the fingers of the hairdresser, the movable range of the fingers, and the cutting technique to be adopted. freely adjustable.

Advantageous Effects of Invention According to the present invention, it is possible to reduce the physical burden in cutting work of a hairdresser who has a narrow range of motion of fingers and has difficulty in stably gripping hairdressing and beauty scissors.

FIG. 2 to FIG. 13 show the whole or a part of hairdressing and beauty scissors according to an embodiment of the present invention, and this figure is a perspective view of the hairdressing and beauty scissors. FIG. 2 is a perspective view of the hairdressing scissors seen from a direction different from that of FIG. 1; 4 is a cross-sectional view showing a fulcrum shaft portion and the like; FIG. 3 is an exploded perspective view of a static blade unit; FIG. 4 is an exploded perspective view of the moving blade unit; FIG. It is a perspective view of an elastic member. FIG. 10 is a diagram showing a state in which one end of the elastic member is pressed against the movable blade handle; FIG. 10 is a view showing a state in which the other end of the elastic member is pressed against the moving blade handle; It is a perspective view of an elastic member and an adjustment shaft part. FIG. 4 is an explanatory diagram showing an example of how to hold hairdressing scissors. FIG. 5 is a diagram showing an example of how to hold hairdressing and beauty scissors in a state in which the movable blade ring portion is rotated; FIG. 4 is a plan view showing a state in which the movable blade ring portion is moved forward; FIG. 4 is a plan view showing a state in which the moving blade rotating portion is rotated with respect to the moving blade handle;

Embodiments will be described below with reference to FIGS. 1 to 13. FIG.
It should be noted that some of the configurations described in the drawings referred to in the description of the present embodiment extract and show the necessary portions and peripheral configurations for realizing the present embodiment. In addition, the drawings are schematic, and the relationship, ratio, etc. between the thickness of each structure and the planar dimensions shown in the drawings are merely examples. Therefore, various modifications can be made in accordance with the design and the like without departing from the technical idea of the present invention.

First, a configuration example of hairdressing and beauty scissors 1 according to the embodiment will be described with reference to FIGS. 1 to 6. FIG.

Hairdressing scissors 1 have a stationary blade unit 2, a movable blade unit 3, a fulcrum shaft portion 4, and an elastic member 5 (see FIGS. 1 and 2). The stationary blade unit 2 and the moving blade unit 3 are connected by a fulcrum shaft portion 4 and are rotatable about the axis of the fulcrum shaft portion 4 . The elastic member 5 is supported by the fulcrum shaft portion 4 and one end thereof is pressed against the movable blade unit 3 .

In the following description, for the sake of convenience, the direction toward the cutting edge of the stationary blade unit 2 and the moving blade unit 3 is defined as the front, and the direction opposite to the direction toward the cutting edge is defined as the rear.

First, a configuration example of the stationary blade unit 2 will be described.
The stationary blade unit 2 has a stationary blade 11 , a stationary blade handle portion 12 and a stationary blade ring portion 13 .

The stationary blade 11 is formed so that the width becomes narrower toward the cutting edge 11a. The surface 11b of the stationary blade 11, which overlaps the moving blade 31, is formed with a warp curved in the longitudinal direction and a back slit curved in the width direction with a twist.

The stationary blade handle portion 12 has a stationary blade handle base portion 14 and a stationary blade rotating portion 15 .
The stationary blade handle base portion 14 has a stationary blade base portion 16 , a stationary blade handle portion 17 , a stationary blade annular portion 18 and a stationary blade support portion 19 .

The stationary blade base portion 16 is formed continuously rearward from the edge 11 c of the stationary blade 11 , and has a stationary blade side connection hole for coupling with the moving blade unit 3 by the fulcrum shaft portion 4 . 16a are formed (see FIG. 3).

The stationary blade handle portion 17 is formed continuously from the stationary blade base portion 16 so that the width becomes narrower toward the rear (see FIGS. 1 and 2).

The stationary blade annular portion 18 is formed continuously with the rear end of the stationary blade handle portion 17 and has an annular insertion hole 18a (see FIG. 4).

The stationary blade unit 2 includes a stationary blade 11, a stationary blade base portion 16, a stationary blade handle portion 17, and a stationary blade annular portion 18, which are integrally formed.

The stationary blade support portion 19 is, for example, a screw member, and has a male screw portion 19a and a head portion 19b.
A male screw portion 19a of the stationary blade support portion 19 is screwed into a female screw hole 15a formed in the stationary blade rotation portion 15 by inserting the spring washer 20, the annular insertion hole 18a and the spring washer 21 in this order. By screwing the male threaded portion 19a into the female threaded hole 15a, the stationary blade rotating portion 15 is rotatably connected to the stationary blade handle base portion 14 with the male threaded portion 19a as a fulcrum.

Therefore, the stationary blade rotating portion 15 is rotatable with respect to the stationary blade handle base portion 14 in the direction around the axis of the annular insertion hole 18a. position is adjustable.

It is also possible to integrally form the stationary blade annular portion 18 and the stationary blade support portion 19 by integrally providing the male screw portion 19a so as to protrude from the stationary blade annular portion 18. FIG. In this case, the female threaded hole 15a is formed as a through hole having no thread groove, the male threaded portion 19a is passed through this through hole and screwed to the nut, and the stationary blade rotating portion 15 is formed as a stationary blade handle. It is rotatably connected to the base portion 14 . By integrally forming the stationary blade annular portion 18 and the stationary blade support portion 19, the number of parts can be reduced.

A female screw hole 15a is formed in the front end portion of the rotating portion 15 for the static blade, and a static blade side adjustment hole 15b is formed in the rear end portion. The stationary blade side adjustment hole 15b is formed in an elongated hole shape extending in a direction perpendicular to the penetration direction of the female screw hole 15a and connecting the female screw hole 15a and the stationary blade side adjustment hole 15b. By forming the female screw hole 15a in the stationary blade rotating portion 15 in this way, it is not necessary to use a member such as a nut when connecting the stationary blade rotating portion 15 to the stationary blade handle base portion 14. FIG.

It is also possible to integrally form the stationary blade rotating portion 15 and the stationary blade support portion 19 by integrally providing the male screw portion 19a so as to protrude from the stationary blade rotating portion 15. FIG. In this case, the male threaded portion 19a is passed through the annular insertion hole 18a of the stationary blade annular portion 18 and screwed into the nut, so that the stationary blade rotating portion 15 can rotate to the stationary blade handle base portion 14. concatenated. By integrally forming the stationary blade rotating portion 15 and the stationary blade supporting portion 19, the number of parts can be reduced.

The stationary blade ring portion 13 has a stationary blade finger ring portion 22 , a finger hook portion 23 , a stationary blade connecting portion 24 and a stationary blade connecting portion 25 .

The stationary blade finger ring portion 22 is formed in a ring shape so that a hairdresser's (user's) ring finger or the like can be inserted.
Further, the finger hooking portion 23 is formed so as to protrude rearward from the rear end of the stationary blade finger ring portion 22 so that a hairdresser's little finger or the like can be hooked thereon.

The stationary blade connecting portion 24 is formed to protrude forward from the front end of the stationary blade finger ring portion 22 and has a female screw hole 24a at the tip.
The static blade connecting portion 25 is, for example, a screw member, and has a male screw portion 25a and a head portion 25b.

A male threaded portion 25a of the stationary blade connecting portion 25 is inserted into the spring washer 26, the stationary blade side adjustment hole 15b and the spring washer 27 in this order and screwed into the female threaded hole 24a. By screwing the male threaded portion 25a into the female threaded hole 24a, the stationary blade ring portion 13 can move in the longitudinal direction of the stationary blade side adjustment hole 15b and can rotate in the direction around the axis perpendicular to the longitudinal direction. It is connected to the stationary blade rotating portion 15 in this state.

Thereby, the position and orientation of the stationary blade ring portion 13 with respect to the stationary blade 11 can be adjusted according to the movement and rotation of the male thread portion 25a in the stationary blade side adjustment hole 15b.

Instead of forming the stationary blade side adjusting hole 15b in the stationary blade rotating portion 15, an elongated hole may be formed in the stationary blade connecting portion 24. FIG. The position and orientation of the stationary blade ring portion 13 with respect to the stationary blade 11 can be adjusted by moving and rotating the male screw portion 25a inserted into the elongated hole. In this case, for example, a circular hole through which the male threaded portion 25a is inserted may be formed in the rear end portion of the stationary blade rotating portion 15, and the male threaded portion 25a passing through the long hole is fastened with a nut or the like. As a result, the stationary blade ring portion 13 is connected to the stationary blade rotating portion 15 .

Further, the stationary blade connecting portion 24 and the stationary blade connecting portion 25 can be integrally formed by integrally providing the male screw portion 25a so as to protrude from the stationary blade connecting portion 24. FIG. In this case, the male screw portion 25a is passed through the stationary blade side adjustment hole 15b of the stationary blade rotating portion 15 and screwed into the nut, and the stationary blade rotating portion 15 rotates to the stationary blade connecting portion 24. Connected as possible. The number of parts can be reduced by integrally forming the stationary blade connecting portion 24 and the stationary blade connecting portion 25 .

Next, a configuration example of the movable blade unit 3 will be described.
The movable blade unit 3 has a movable blade 31, a movable blade handle portion 32, and a movable blade ring portion 33 (see FIGS. 1 and 2).

The movable blade 31 is formed so that the width becomes narrower toward the cutting edge 31a. A surface 31b of the movable blade 31 overlapping the surface 11b of the stationary blade 11 is formed with a warp curved in the longitudinal direction and a back slit curved in the width direction formed with a twist.

The moving blade handle portion 32 has a moving blade handle base portion 34 and a moving blade rotating portion 35 .
The movable blade handle base portion 34 has a movable blade base portion 36 , a movable blade handle portion 37 , a movable blade annular portion 38 and a movable blade support portion 39 .

The moving blade base portion 36 is formed continuously rearward from the blade base 31c of the moving blade 31, and the moving blade side connection hole for connecting with the stationary blade unit 2 by the fulcrum shaft portion 4 is formed in the moving blade base portion 36. 36a are formed (see FIG. 3).

The moving blade handle portion 37 is formed continuously from the moving blade base portion 36 so that the width becomes narrower toward the rear (see FIGS. 1 and 2).

A hit point 40 that defines the positions of the stationary blade unit 2 and the moving blade unit 3 in the rotating direction of the stationary blade 11 and the moving blade 31 toward the closing direction is supported on the moving blade handle portion 37 (see FIG. 5). ).

Usually, in general hairdressing scissors 1, the regulation positions of the cutting edge 31a of the moving blade 31 and the cutting edge 11a of the stationary blade 11 are adjusted by bending the handle portion 37 for the moving blade and the handle portion 17 for the stationary blade. As the hit point 40 of this embodiment, for example, a screw member is used, and the hit point 40 is screwed into the screw hole 37a of the movable blade handle portion 37, for example. The amount of protrusion of the hit point 40 from the moving blade handle portion 37 is changed according to the tightness of the hit point 40 with respect to the screw hole 37a, and the regulating positions of the stationary blade unit 2 and the moving blade unit 3 are adjusted. That is, it is possible to adjust the regulating positions of the blade edge 31a and the blade edge 11a without bending the moving blade handle portion 37 and the stationary blade handle portion 17. FIG.

As a result, the hit point 40 can be positioned at a suitable position according to the hairdresser, so that the physical burden of the hairdresser when using the hairdressing scissors 1 can be reduced.

The hit point 40 may be formed of resin or the like and attached to the movable blade handle portion 37 . Also, the hit point 40 provided as a screw member may be screwed into the stationary blade handle portion 17 .

The movable blade annular portion 38 is formed continuously with the rear end of the movable blade handle portion 37 and has an annular insertion hole 38a (see FIG. 5).

The movable blade unit 3 includes a movable blade 31, a movable blade base portion 36, a movable blade handle portion 37, and a movable blade annular portion 38, which are integrally formed.

The movable blade support portion 39 is, for example, a screw member, and has a male screw portion 39a and a head portion 39b.
The male threaded portion 39a of the moving blade support portion 39 is screwed into the female threaded hole 35a formed in the rotating portion 35 for the moving blade by inserting the spring washer 46, the annular insertion hole 38a and the spring washer 47 in this order. By screwing the male threaded portion 39a into the female threaded hole 35a, the moving blade rotating portion 35 is rotatably connected to the moving blade handle base portion 34 with the male threaded portion 39a as a fulcrum.

Therefore, the moving blade rotating portion 35 is rotatable with respect to the moving blade handle base portion 34 in the direction around the axis of the annular insertion hole 38a. position is adjustable.

It is also possible to integrally form the moving blade annular portion 38 and the moving blade support portion 39 by integrally providing the male screw portion 39a so as to protrude from the moving blade annular portion 38. FIG. In this case, the female threaded hole 35a is formed as a through hole having no thread groove, the male threaded portion 39a is passed through the through hole and screwed to the nut, and the moving blade rotating portion 35 is formed as a moving blade handle. It is rotatably connected to the base portion 34 . By integrally forming the movable blade annular portion 38 and the movable blade support portion 39, the number of parts can be reduced.

A female threaded hole 35a is formed in the front end portion of the moving blade rotating portion 35, and a moving blade side adjustment hole 35b is formed in the rear end portion. The moving blade side adjusting hole 35b is formed in an elongated hole shape extending in a direction connecting the female screw hole 35a and the moving blade side adjusting hole 35b. By forming the female screw hole 35a in the moving blade rotating portion 35 in this manner, it is not necessary to use a member such as a nut when connecting the moving blade rotating portion 35 to the moving blade handle base portion 34. FIG.

It is also possible to integrally form the moving blade rotating portion 35 and the moving blade support portion 39 by integrally providing the male screw portion 39a so as to protrude from the moving blade rotating portion 35. FIG. In this case, the male screw portion 39a is passed through the annular insertion hole 38a of the moving blade annular portion 38 and screwed into the nut, so that the moving blade rotating portion 35 can rotate to the moving blade handle base portion 34. concatenated. By integrally forming the movable blade rotating portion 35 and the movable blade support portion 39, the number of parts can be reduced.

The moving blade ring portion 33 has a moving blade finger ring portion 43 , a moving blade connecting portion 44 and a moving blade connecting portion 45 .

The movable blade finger ring portion 43 is formed in an annular shape into which a hairdresser's thumb or the like can be inserted.
The moving blade connecting portion 44 is provided continuously with the moving blade finger ring portion 43 as the front end portion of the moving blade ring portion 33 and has a female screw hole 44a.
The movable blade connecting portion 45 is, for example, a screw member, and has a male screw portion 45a and a head portion 45b.

The male threaded portion 45a of the moving blade connecting portion 45 is inserted into the spring washer 46, the moving blade side adjustment hole 35b, and the spring washer 47 in this order and screwed into the female threaded hole 44a. By screwing the male threaded portion 45a into the female threaded hole 44a, the moving blade ring portion 33 can move in the longitudinal direction of the moving blade side adjustment hole 35b and can rotate in the direction around the axis perpendicular to the longitudinal direction. It is connected to the movable blade rotating portion 35 in this state.

Accordingly, the position and orientation of the moving blade ring portion 33 with respect to the moving blade 31 can be adjusted according to the movement and rotation of the male screw portion 45a in the moving blade side adjustment hole 35b.

Instead of forming the moving blade side adjustment hole 35b in the moving blade rotating portion 35, a long hole may be formed in the moving blade connecting portion 44. FIG. The position and orientation of the moving blade ring portion 33 with respect to the moving blade 31 can be adjusted by moving and rotating the male screw portion 45a inserted into the elongated hole. In this case, for example, an elongated hole through which the male threaded portion 45a is inserted may be formed in the rear end portion of the movable blade rotating portion 35, and the male threaded portion 45a passing through the elongated hole may be fastened with a nut or the like. As a result, the moving blade ring portion 33 is connected to the moving blade rotating portion 35 .

Further, by integrally providing the male screw portion 45a so as to protrude from the moving blade connecting portion 44, the moving blade connecting portion 44 and the moving blade connecting portion 45 can be integrally formed. In this case, the male screw portion 45a is passed through the moving blade side adjustment hole 35b of the moving blade rotating portion 35 and screwed into the nut, and the moving blade rotating portion 35 rotates to the moving blade connecting portion 44. Connected as possible. The number of parts can be reduced by integrally forming the movable blade connecting portion 44 and the movable blade connecting portion 45 .

A configuration example of the elastic member 5 will be described below (see FIG. 6).
The elastic member 5 is made of, for example, a SUS (Steel Special Use Stainless) member and has a plate spring portion 51 and a pressing protrusion 52 .

An elongated support hole 51 a extending in the front-rear direction is formed at one end of the leaf spring portion 51 . The fulcrum shaft portion 4 is inserted through the support hole 51 a , and the leaf spring portion 51 is supported by the stationary blade handle portion 12 by the fulcrum shaft portion 4 .

The pressing protrusion 52 is continuous with the other end of the plate spring portion 51 and is bent substantially perpendicularly to the plate spring portion 51 . The tip edge of the pressing protrusion 52 is formed in a curved state. That is, the pressing protrusion 52 is curved so that the length of the pressing protrusion 52 in the direction of protrusion at each of the one end 52a and the other end 52b in the width direction is longer than the length in the direction of protrusion at the center in the width direction. formed.

The fulcrum shaft portion 4 has a support bolt 41 and a nut 42 (see FIG. 3).
The support bolt 41 is fastened to the nut 42 while being passed through the ball bearings 61 and 62 and the washers 63 , 64 and 65 .

The support bolt 41 is inserted through the support hole 51a, the washer 63, the ball bearing 61, the stationary blade side connection hole 16a, the washer 64, the ball bearing 62, the washer 65, and the moving blade side connection hole 36a in this order, and is screwed into the nut 42. By screwing the support bolt 41 into the nut 42, the plate spring portion 51 is supported by the stationary blade handle portion 12, and the stationary blade unit 2 and the moving blade unit 3 are rotatably connected to each other.

By arranging the washer 63 between the ball bearing 61 and the plate spring portion 51, the ball of the ball bearing 61 is prevented from protruding from the support hole 51a. Further, since the ball bearing 61 is arranged between the stationary blade handle 12 and the elastic member 5, the position of the elastic member 5 with respect to the stationary blade handle 12 can be smoothly adjusted. 12 and the moving blade handle 32, the stationary blade handle 12 and the moving blade handle 32 can be smoothly rotated.

Further, by arranging washers 64 and 65 on both sides of the ball bearing 62 respectively, the urging force of the washers 64 and 65 ensures a firm fastening state between the support bolt 41 and the nut 42 .

Since the plate spring portion 51 is supported by the stationary blade handle portion 12, the pressing protrusion 52 is pressed against the movable blade base portion 36, and the movable blade 31 is urged in a direction approaching the stationary blade 11 in the thickness direction. As a result, a large shearing force can be generated between the stationary blade 11 and the moving blade 31 when the stationary blade unit 2 and the moving blade unit 3 rotate in the closing direction.

Further, at this time, since the pressing protrusion 52 is formed in a shape with a curved tip edge, it contacts the moving blade base portion 36 at two points, one end 52a and the other end 52b in the width direction.

As a result, the movable blade base portion 36 is pressed by two points of the pressing protrusion 52 in a point contact state. Therefore, the pressing force from the elastic member 5 to the movable blade handle portion 32 can be efficiently transmitted without spreading. The pressing projection 52 may contact the moving blade base portion 36 at three or more points, or may contact the entire tip edge.

Further, since the plate spring portion 51 is supported by the stationary blade handle portion 12 in a state in which the support bolt 41 is inserted into the elongated support hole 51a, it can move in the longitudinal direction of the stationary blade handle portion 12. state. Therefore, since the leaf spring portion 51 can adjust the contact position of the pressing protrusion 52 with respect to the moving blade base portion 36 , the biasing force applied to the moving blade 31 can be adjusted to generate a force between the stationary blade 11 and the moving blade 31 . Shear force can be adjusted.

In the hairdressing scissors 1, by deforming the leaf spring portion 51 of the elastic member 5 and adjusting the contact angle of the one end 52a or the other end 52b of the pressing protrusion 52 with respect to the movable blade base portion 36, The degree of twist of the movable blade 31 is adjustable (see FIGS. 7 and 8).

For example, it is possible to adjust the contact angle in a state where one end 52a of the pressing projection 52 is in contact with the moving blade base portion 36 and the other end 52b is not in contact with the moving blade base portion 36 (see FIG. 7).

In this case, the pressing protrusion 52 is pressed only against the left end portion of the movable blade handle portion 32 when viewed from behind the cutting edge 31 a of the movable blade base portion 36 . As a result, the movable blade 31 is twisted so that the outer edge of the movable blade 31 is separated from the stationary blade 11 in the thickness direction.

Conversely, for example, it is possible to adjust the contact angle in a state where the other end 52b of the pressing projection 52 is in contact with the moving blade base portion 36 and the one end 52a is not in contact with the moving blade base portion 36 (see FIG. 8). ).

In this case, the pressing protrusion 52 is pressed only against the right end portion of the movable blade handle portion 32 when viewed from behind the cutting edge 31 a of the movable blade base portion 36 . As a result, the movable blade 31 is twisted so that the outer edge of the movable blade 31 approaches the stationary blade 11 in the thickness direction.

In this way, it is possible to accurately adjust the degree of twist of the moving blade 31 with respect to the stationary blade 11, and to freely adjust the magnitude of the shearing force. Therefore, it is possible to reduce the physical burden on the hairdresser in the cutting work.

Further, the structure for holding down the movable blade base portion 36 is not limited to the structure using the elastic member 5 described above, and a structure as shown in FIG. 9 can be used.

In such a configuration, for example, instead of the elastic member 5, an elastic member 5A and an adjustment shaft portion 6 are provided.
The elastic member 5A is a leaf spring and has a support hole 51a formed at one end and an insertion hole 51b formed at the other end. The insertion hole 51b is formed in an elongated shape extending in the width direction.

The adjustment shaft portion 6 is inserted through the insertion hole 51b so that the position of the adjustment shaft portion 6 with respect to the elastic member 5A in the axial direction can be adjusted. Therefore, the adjustment shaft portion 6 is movable with respect to the elastic member 5 in the longitudinal direction of the insertion hole 51b.
The adjustment shaft portion 6 is connected to the elastic member 5A by sandwiching the elastic member 5A using the connection nuts 7 and 8 while being inserted into the insertion hole 51b.

The elastic member 5A is supported by the stationary blade handle portion 12 by fastening a nut 42 to a support bolt 41 inserted through the support hole 51a. The tip 6a of the adjusting shaft portion 6 is pressed against the movable blade base portion 36 by the biasing force of the elastic member 5A.

By adjusting the position of the adjusting shaft portion 6 with respect to the elastic member 5A in the axial direction in this manner, the degree of pressure of the moving blade 31 against the stationary blade 11 can be adjusted. In addition, by adjusting the position of the adjustment shaft portion 6 with respect to the elastic member 5A in the longitudinal direction of the insertion hole 51b, any desired movement of the moving blade handle portion 32 in the left-right direction when viewed from the rear of the cutting edge 31a of the moving blade base portion 36 can be achieved. The adjusting shaft portion 6 can be pressed to the position of .

As a result, the degree of twist of the movable blade 31 with respect to the stationary blade 11 can be adjusted with high accuracy, and the magnitude of the shearing force can be freely adjusted. Therefore, it is possible to reduce the physical burden on the hairdresser in the cutting work.

However, in the configuration in which the elastic member 5 is used to apply the biasing force to the movable blade 31, the degree of twist of the movable blade 31 with respect to the stationary blade 11 can be adjusted with high accuracy using only one member. Therefore, when the elastic member 5 is used, the manufacturing cost can be reduced by reducing the number of parts.

On the other hand, in the configuration in which the elastic member 5A is used to apply the biasing force to the moving blade 31, the biasing force is applied from the elastic member 5A to the moving blade 31 by adjusting the axial position of the adjustment shaft portion 6 with respect to the elastic member 5A. The magnitude of the biasing force can be adjusted, and the degree of freedom in adjusting the biasing force can be improved.

Next, operation of hairdressing scissors 1 according to the present embodiment will be described with reference to FIGS. 10 to 13. FIG. 12 and 13 schematically show plan views of the hairdressing scissors 1 viewed from the movable blade unit 3 side.

The hairdresser holds the hairdressing scissors 1 by, for example, inserting the ring finger rf into the stationary blade finger ring portion 22 of the stationary blade unit 2 and inserting the thumb tb into the moving blade finger ring portion 43 of the moving blade unit 3. (See FIG. 10). At this time, by placing the little finger lf on the finger hooking portion 23 of the stationary blade unit 2, the hairdresser can hold the hairdressing scissors 1 in a stable state.

When hair is cut by the scissors 1 for hairdressing and beauty, a cutting force causes the pair of stationary blade 11 and moving blade 31 to separate from each other. The movable blade 31 is urged in the direction of approaching the stationary blade 11 in the thickness direction.

Therefore, the hairdresser does not need to apply a strong force to the movable blade unit 3 with the thumb tb to overcome the cutting resistance, and even if the stationary blade 11 and the movable blade 31 are opened and closed while a large shearing force is applied, the hair will not be cut. Cutting work can be easily performed.

Therefore, the burden on the thumb tb of the hairdresser during the cutting work is reduced, and the occurrence of symptoms such as pain at the base of the thumb tb, tenosynovitis, and shoulder stiffness can be suppressed.

In addition, for example, in a cutting technique called a slide cut or a stroke cut for thinly shaving hair, a hairdresser uses the scissors 1 for hairdressing and beauty while waving his hand widely. difficult to continue. Hairdressing and beauty scissors 1 are preferable because they can perform the cutting work without applying a large force to the thumb tb even when such a cutting technique is used.

Subsequently, in the moving blade unit 3 of the hairdressing scissors 1, as described above, the male screw portion 45a of the moving blade connection portion 45 is rotated in the axial direction with respect to the moving blade rotation portion 35. , the orientation of the moving blade ring portion 33 with respect to the moving blade 31 can be freely adjusted.

As a result, the hairdresser can adjust the orientation of the movable blade ring portion 33 with respect to the movable blade 31 in accordance with the size and movable range of his/her fingers and cutting technique to be employed.

For example, it is difficult to insert the thumb tb into the movable blade ring portion 33 in a normal use state (see FIG. 10) where the range of motion of the fingers is narrow, and it is difficult to stably hold the hairdressing scissors 1. There is also a hairdresser.

In such a case, for example, by rotating the moving blade ring portion 33 with respect to the moving blade rotating portion 35, a hairdresser with a narrow range of motion of fingers can reach the moving blade ring portion 33 with the thumb tb. can be easily inserted (see FIG. 11).

As a result, even a hairdresser with a narrow movable range of fingers can easily apply force to the thumb tb, thereby reducing the physical burden in the cutting work. In addition, the scissors for hairdressing and beauty care 1 can be suitably used for a cutting technique that requires changing the way of holding, regardless of the movable range of fingers of the hairdresser.

Further, in the moving blade unit 3, by moving the male screw portion 45a of the moving blade connecting portion 45 with respect to the moving blade rotating portion 35 in the longitudinal direction of the moving blade side adjusting hole 35b, the moving blade 31 can be moved. The position of the blade ring portion 33 can be adjusted. For example, by moving the male screw portion 45a forward, the position of the movable blade ring portion 33 can be adjusted so as to approach the movable blade 31 (see FIG. 12).

In this manner, in addition to rotating the male threaded portion 45a of the moving blade connecting portion 45 with respect to the moving blade rotating portion 35 in the direction around the axis, moving the moving blade side adjustment hole 35b in the longitudinal direction causes the male screw portion 45a to rotate. , the position and orientation of the moving blade ring portion 33 with respect to the moving blade 31 can be adjusted with two degrees of freedom.

Therefore, the hairdresser can adjust the position and orientation of the movable blade ring portion 33 with respect to the movable blade 31 with a high degree of freedom in accordance with the size and movable range of his fingers and the cutting technique to be employed. Therefore, by more flexibly adjusting the position and orientation of the movable blade ring portion 33 according to the preferences of the hairdresser and the range of motion of the fingers, the physical burden of the hairdresser's cutting work can be reduced. can be done. In addition, since the degree of freedom in adjusting the position and orientation of the movable blade ring portion 33 is improved, the physical burden on the hairdresser when using various cutting techniques is further reduced.

In the hairdressing scissors 1, the rotation axis of the stationary blade rotating portion 15 with respect to the stationary blade handle base portion 14 is orthogonal to the rotation axis of the stationary blade connecting portion 25 in the stationary blade side adjustment hole 15b. ing. In this way, the position and orientation of the stationary blade ring portion can be adjusted in various ways by differentiating the axial directions of the rotary shaft of the stationary blade rotary portion 15 and the rotary shaft of the stationary blade connecting portion 25. This makes it possible to further reduce the physical burden on the hairdresser in the cutting work.

In particular, the axial direction of the rotating shaft of the stationary blade rotating portion 15 and the rotating shaft of the stationary blade connecting portion 25 are perpendicular to each other, so that the thumb tb and the ring finger rf are respectively connected to the moving blade ring portion. 33 and the stationary blade ring portion 13 are stably inserted into the stationary blade ring portion 13, the position and orientation of the stationary blade ring portion 13 with respect to the stationary blade 11 are adjusted, and the position and direction of the moving blade ring portion 33 with respect to the moving blade 31 are adjusted. direction adjustment can be performed smoothly and easily.

Further, in the moving blade unit 3, the position of the moving blade ring portion 33 with respect to the moving blade 31 can be adjusted by rotating the moving blade rotating portion 35 with respect to the moving blade handle base portion 34. . For example, by rotating the moving blade rotating portion 35 clockwise with respect to the moving blade handle base portion 34 , the position of the moving blade ring portion 33 can be adjusted so as to approach the moving blade 31 . (See FIG. 13).

As a result, the position and orientation of the movable blade ring portion 33 with respect to the movable blade 31 can be adjusted with three degrees of freedom in combination with the above.

Therefore, the position and orientation of the movable blade ring portion 33 can be adjusted more precisely according to the preferences of the hairdresser and the range of motion of the fingers, etc., thereby further reducing the physical burden of the hairdresser during cutting work. can do. In addition, by further improving the adjustment accuracy of the position and orientation of the movable blade ring portion 33, it becomes possible to flexibly cope with various cutting techniques.

On the other hand, in the stationary blade unit 2, by rotating the male screw portion 25a of the stationary blade connecting portion 25 with respect to the stationary blade rotation portion 15 in the direction around the axis, the stationary blade ring portion 13 is rotated with respect to the stationary blade 11. direction can be adjusted freely.

As a result, the hairdresser can adjust the orientation of the stationary blade ring portion 13 with respect to the stationary blade 11 in accordance with the size and movable range of his/her fingers and cutting technique to be employed.

Therefore, it is possible to reduce the physical burden of a hairdresser, who has a narrow range of motion of fingers, in cutting work. In addition, it is possible to flexibly cope with a cutting technique that requires a different way of holding the hairdressing scissors 1.例文帳に追加

Further, in the stationary blade unit 2, by moving the male screw portion 25a of the stationary blade connecting portion 25 in the longitudinal direction with respect to the stationary blade rotation portion 15, the stationary blade 11 is stabilized. The position of the blade ring portion 13 can be adjusted.

In this manner, in addition to rotating the male threaded portion 25a of the stationary blade connecting portion 25 with respect to the stationary blade rotating portion 15 in the direction around the axis, moving it in the longitudinal direction of the stationary blade side adjustment hole 15b is performed. , the position and orientation of the stationary blade ring portion 13 with respect to the stationary blade 11 can be adjusted with two degrees of freedom.

Therefore, the hairdresser can adjust the position and direction of the stationary blade ring portion 13 with respect to the stationary blade 11 with a high degree of freedom in accordance with the size and movable range of his/her fingers and cutting technique to be employed. Therefore, by more flexibly adjusting the position and orientation of the static blade ring portion 13 according to the preferences of the hairdresser and the movable range of the fingers, etc., the physical burden of the hairdresser's cutting work can be reduced. can be done. In addition, since the degree of freedom in adjusting the position and orientation of the stationary blade ring portion 13 is improved, the physical burden on the hairdresser when using various cutting techniques is further reduced.

Further, in the stationary blade unit 2, the position of the stationary blade ring portion 13 with respect to the stationary blade 11 can be adjusted by rotating the stationary blade rotating portion 15 with respect to the stationary blade handle base portion 14. .

As a result, the position and orientation of the stationary blade ring portion 13 with respect to the stationary blade 11 can be adjusted with three degrees of freedom in combination with the above.

Therefore, the position and orientation of the static blade ring portion 13 can be adjusted more precisely according to the hairdresser's preference, the range of movement of the fingers, etc., and the physical burden of the hairdresser's cutting work can be further reduced. can do. In addition, by further improving the adjustment accuracy of the position and orientation of the stationary blade ring portion 13, it becomes possible to flexibly cope with various cutting techniques.

As described above, in the hairdressing scissors 1, each of the stationary blade unit 2 and the movable blade unit 3 has three degrees of freedom, and the movable blade ring portion 33 and the stationary blade ring portion 13 can be moved with a total of six degrees of freedom. The orientation and position with respect to the blade 31 and stationary blade 11 can be adjusted. Therefore, the positions and orientations of the stationary blade ring portion 13 and the movable blade ring portion 33 can be adjusted with high accuracy according to the preferences of the hairdresser and the movable range of the fingers.

In addition, the plate spring portion 51 of the elastic member 5 is formed with an elongated support hole 51a extending in the front-rear direction at one end (see FIG. 6). By moving the support bolt 41 of the fulcrum shaft portion 4 in the longitudinal direction with respect to the support hole 51a, the contact position of the pressing protrusion 52 on the movable blade base portion 36 can be adjusted.

As a result, it is possible to adjust the biasing force from the elastic member 5 in the direction in which the moving blade 31 approaches the stationary blade 11 in the thickness direction, thereby reducing the physical burden on the operator during the cutting operation.

Further, a screw member is used as the hit point 40, and by changing the amount of protrusion of the hit point 40 from the moving blade handle portion 37 according to the degree of tightening of the hit point 40 with respect to the screw hole 37a, the stationary blade unit 2 and the The restricted position of the movable blade unit 3 can be adjusted.

Since the hit point 40 can be adjusted to a suitable position according to the hairdresser's preference, the range of movement of the fingers, etc., this also reduces the physical burden of the hairdresser when using the hairdressing scissors 1. can be mitigated.

The effects described in the present disclosure are examples and are not limited, and other effects may be obtained, or part of the effects described in the present disclosure may be obtained. . Moreover, the embodiments described in the present disclosure are merely examples, and the present invention is not limited to the above-described embodiments. Therefore, it goes without saying that various modifications other than the above-described embodiment can be made according to the design and the like within the scope of the technical idea of the present invention. Note that not all combinations of configurations described in the embodiments are essential for solving the problem.

1 hairdressing scissors 2 stationary blade unit 3 movable blade unit 4 fulcrum shaft portion 5 elastic member 11 stationary blade 12 stationary blade handle portion 13 stationary blade ring portion 15 stationary blade rotating portion 15b stationary blade side adjustment hole 25 stationary Blade connecting portion 31 Moving blade 32 Moving blade handle portion 33 Moving blade ring portion 35 Moving blade rotating portion 35b Moving blade side adjustment hole 40 Hit point 45 Moving blade connecting portion

Claims (8)

It has a stationary blade, a stationary blade handle portion continuous to the base of the stationary blade, and a stationary blade ring portion continuous to one end portion of the stationary blade handle portion into which a user's finger can be inserted. a stationary blade unit;
It has a moving blade, a moving blade handle continuous with the base of the moving blade, and a moving blade ring part continuous with one end of the moving blade handle into which a user's finger can be inserted. a moving blade unit;
a fulcrum shaft portion that rotatably connects the stationary blade unit and the moving blade unit to each other;
An elongated moving-blade-side adjusting hole is formed in the moving-blade handle,
The moving blade ring portion is inserted into the moving blade side adjustment hole in a state that it can move in the longitudinal direction and rotate in the direction around the axis perpendicular to the longitudinal direction, and the moving blade handle portion has a A connecting portion for the moving blade to be connected is provided,
The position and orientation of the moving blade ring portion with respect to the moving blade can be adjusted according to the movement and rotation of the moving blade connecting portion in the moving blade side adjustment hole ,
an elastic member supported by a base portion of the stationary blade handle continuous from the base of the stationary blade and having one end pressed against the moving blade handle;
The movable blade is biased toward the stationary blade in the thickness direction in a state where the movable blade handle is pressed by the elastic member,
The elastic member has a leaf spring portion supported by the base portion and a pressing protrusion pressed against the movable blade handle portion,
Either of the two points on both ends in the width direction of the tip edge of the pressing protrusion is in contact with the handle for the movable blade.
Hairdressing scissors. A female threaded hole is formed in the moving blade ring portion,
A screw member is used as the connecting portion for the moving blade,
2. The moving-blade ring portion is connected to the moving-blade handle portion by screwing the moving-blade connecting portion inserted into the moving-blade-side adjustment hole into the female screw hole. Hairdressing scissors. The moving blade handle portion has a moving blade rotating portion connected to the moving blade ring portion and a moving blade handle base portion continuing to the base of the moving blade,
3. The hairdressing and beauty scissors according to claim 1, wherein the moving blade rotating portion is rotatably connected to the moving blade handle base portion. An elongated stationary blade adjustment hole is formed in the stationary blade handle,
The stationary blade ring portion is inserted into the stationary blade adjustment hole so as to be movable in the longitudinal direction and rotatable in a direction around the axis perpendicular to the longitudinal direction. A connecting portion for a stationary blade to be connected is provided,
4. The position and orientation of the stationary blade ring portion with respect to the stationary blade can be adjusted according to the movement and rotation of the stationary blade connecting portion in the stationary blade adjustment hole. Hairdressing scissors according to Crab. The stationary blade handle portion has a stationary blade rotation portion connected to the stationary blade ring portion and a stationary blade handle base portion continuous to the base of the stationary blade,
5. The hairdressing and beauty scissors according to claim 4, wherein the stationary blade rotating portion is rotatably connected to the stationary blade handle base portion. 6. The apparatus according to claim 5, wherein the rotational axis of the stationary blade rotating portion with respect to the stationary blade handle base portion and the rotational axis of the stationary blade ring portion with respect to the stationary blade rotating portion have different axial directions. Hairdressing scissors. a hit point for regulating the positions of the stationary blade unit and the moving blade unit in the direction of rotation in the closing direction;
7. The hairdressing and beauty scissors according to any one of claims 1 to 6 , wherein a screw member that is screwed into the moving blade handle portion or the stationary blade handle portion is used as the hit point. It has a stationary blade, a stationary blade handle portion continuous to the base of the stationary blade, and a stationary blade ring portion continuous to one end portion of the stationary blade handle portion into which a user's finger can be inserted. a stationary blade unit;
It has a moving blade, a moving blade handle continuous with the base of the moving blade, and a moving blade ring part continuous with one end of the moving blade handle into which a user's finger can be inserted. a moving blade unit;
a fulcrum shaft portion that rotatably connects the stationary blade unit and the moving blade unit to each other;
An elongated moving-blade-side adjusting hole is formed in the moving-blade handle,
The moving blade ring portion is inserted into the moving blade side adjustment hole in a state that it can move in the longitudinal direction and rotate in the direction around the axis perpendicular to the longitudinal direction, and the moving blade handle portion has a A connecting portion for the moving blade to be connected is provided,
The position and orientation of the moving blade ring portion with respect to the moving blade can be adjusted according to the movement and rotation of the moving blade connecting portion in the moving blade side adjustment hole ,
an elastic member formed as a leaf spring and supported by a base portion of the stationary blade handle continuous from the base of the stationary blade;
an adjusting shaft portion inserted through the elastic member and capable of adjusting a position with respect to the elastic member in the axial direction;
One end of the adjustment shaft in the axial direction is pressed against the moving blade handle by the biasing force of the elastic member.
Hairdressing scissors.

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