JPH0718371Y2 - Structure of the pivotal joint in haircutting scissors - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of haircutting scissors used in barber shops and beauty shops.

[0002]

2. Description of the Related Art Conventional scissors for hairdressing use, as shown in FIG.
The flat portions C and D formed on the bases of the blade bodies A and B are pivotally attached to each other by a pivot shaft E while keeping the flat portions C and D in contact with each other, and the blade body A is directed from the flat portions C and D toward the tip. , B are bent toward each other so that the two blades A, B are engaged with each other at their tip portions when the blades A, B are closed, and the blades A, B between the engagement portion F and the flat portions C, D There is a slight gap G between the facing surfaces. Then, while the blade bodies A and B are opened and closed to move the meshing portion F, the hair is cut at the meshing portion F.

[0003]

However, in the above structure, since the flat portions C and D of the two blade bodies A and B are in close contact with each other, the opening and closing operation becomes heavy and fatigue increases,
Hairdressing work for a long time cannot be done, and further,
The meshing pressure of the meshing portion F for cutting the hair is determined by the double blades A and B.
Since it is set to a constant value depending on the amount of bending, the haircut scissors suitable for the user cannot be obtained because it is not possible to adapt to the user's habit and opening / closing force. The present invention has been made in view of the above problems, and provides a structure of a pivoting portion in haircutting scissors in which opening / closing operations can be smoothly performed and the engagement pressure of both blades can be adjusted according to the user. It is a thing.

[0004]

In order to achieve the above-mentioned object, the hairpin scissors of the present invention has a pivotally attached portion, in which the flat portions 4 and 5 formed on the base portions of the blade bodies 1 and 2 are rotated by a pivot shaft 3. In haircutting scissors movably pivoted, a supporting plate piece 7 is superposed on the flat portion 4 of one blade 1, and one end of the supporting plate piece 7 is pivotally attached to the flat portion 4 by a pivot 8 and the supporting plate is also supported. Center part of piece 7 and double-edged body
1 and 2 flat portions 4 and 5 and a small space 19 between the flat portions 4 and 5.
A structure in which it is left in the existing state and is pivotally attached by the pivot shaft 3 , and further, an adjusting screw 9 is screwed into the other end of the supporting plate piece 7 and the tip thereof is pressed against the flat portion 4 of one blade body 1. Have.

[0005]

[Function] Since the flat portions 4 and 5 of the double blades 1 and 2 are rotatably pivoted by the pivot shaft 3 with the small gap 19 left therebetween, the opening and closing operation can be performed lightly and a long hairdressing operation can be performed. Fatigue is reduced even in. When the adjusting screw 9 is rotated,
The support plate piece 7 is finely moved and displaced in a direction of coming closer to and away from the flat surface 4 of the blade 1 with the support shaft 8 as a fulcrum, and is mounted on the shaft cylinder 10 inserted in the central portion of the support plate piece 7. The pivot shaft 3 moves in the lengthwise direction according to the amount of displacement thereof, and the other blade body 2 fixed to the tip of the pivot shaft 3 approaches or separates from the one blade body 1.

Therefore, when both blades 1 and 2 move in the approaching direction, the meshing pressure of the meshing part 6 increases, and when they move in the separating direction, the meshing pressure of the meshing part 6 decreases and the user. Can be adjusted to a suitable meshing pressure.

[0007]

Embodiments of the present invention will now be described with reference to the drawings, in which blades 1 and 2 are barber scissors, the bases of which are flat parts 4 and 5 pivotally attached to each other by a pivot 3. The blade meshing portion 6 is formed by slightly bending the flat portions 4 and 5 in the directions approaching each other toward the tips. Further, as is known, a thumb ring 11 and a finger ring 12 are respectively extended from the flat portions 4 and 5 rearward.

Reference numeral 7 denotes a support plate piece made of a metal plate disposed on the flat portion 4 of one blade 1, one end of which is pivotally attached to the rear end portion of the flat portion 4 by a support shaft 8 made of a countersunk screw. At the same time, a screw hole 13 is provided at the other end, and the adjusting screw 9 is screwed through the screw hole 13, and the tip thereof is brought into contact with the front end surface of the flat portion 4. The support shaft 8 is screwed into the rear end of the flat portion 4 from the surface to an appropriate depth to pivotally attach one end of the support plate piece 7, and the head 8a is recessed in the support plate piece 7. The support plate piece 7 is fitted in the head-fitting hole 14 and is pivotally mounted so that the support plate piece 7 can be undulated in the bending direction about the support shaft 8.

Reference numeral 10 denotes a shaft cylinder fitted in central holes 15 and 16 which are formed in the central portions of the supporting plate piece 7 and the flat portion 4 so as to communicate with each other, and are provided on the outer peripheral surface and the flat portion 4. A small gap is provided between the inner peripheral surfaces of the provided center holes 16 so that the barrel 10 can slide in the vertical direction about the support shaft 8.
The pivot 3 is fitted into the barrel 10 via a bearing 17. Further, the upper end flange portion 20 of the shaft cylinder 10 is brought into contact with the support plate piece 7.

The lower portion of the pivot 3 projects downward from the flat portion 4 and a screw portion 3a is formed on the protruding portion, and the screw portion 3a is formed.
By screwing the blades 1 and 2 into a screw hole 18 provided in the center of the flat portion 5 of the other blade body 2 facing each other, with a small gap 19 between the flat portions 3 and 4. It is freely pivotally attached. Further, the disk-shaped head 3b of the pivot 3 is arranged so as to overlap the shaft cylinder 10, and engaging small holes 21 for a turning tool are formed on both sides thereof. A spring 22 is interposed between the lower surface of the head portion 9a of the adjusting screw 9 and the upper surface of the front end portion of the support plate piece 7, and always biases the adjusting screw 9 upward.

In the hairdressing scissors configured as described above, the pivot shaft 3 is rotated in advance at the time of assembly or before use to provide an appropriate small interval 19 between the flat portions 4 and 5 of the blade bodies 1 and 2. . That is, Axis 3
When the screw is advanced, the flat portion 5 of the other blade body 2 is attracted to the flat portion 4 of the one blade body 1 to reduce its interval, and when it is screwed back, the spacing is increased.

As described above, when the blades 1 and 2 are opened and closed with the small gap 19 provided between the flats 4 and 5 of the blades 1 and 2, the flats 4 and 5 are not in sliding contact with each other. Therefore, frictional resistance does not occur, and therefore, a light opening and closing is possible.

When the adjusting screw 9 is advanced in hairdressing or the like, the tip end of the adjusting screw 9 is the flat portion 4 of the blade 1.
Since it is in contact with the upper side, the support plate piece 7 through which the adjusting screw 9 is threaded moves upward with the support shaft 8 as a fulcrum, and the shaft cylinder 10 fitted in the center hole 15 of the support plate piece 7 Is the flat part 4 of the blade 1.
It is lifted in the direction to project from
The pivot shaft 3 attached to the shaft also moves up integrally, and the other blade body 2 screwed to the tip of the pivot shaft 3 is pulled to draw the small gap between the flat portions 3 and 4 of the blade bodies 1 and 2. The space between the gaps 19 becomes narrower.

On the contrary, when the adjusting screw 9 is unscrewed, the space between the small space portions 19 between the flat portions 3 and 4 of the blade bodies 1 and 2 is adjusted to be wide. Therefore, when the blade bodies 1 and 2 move in the approaching direction, the meshing pressure of the meshing portion 6 increases, and when moving in the separating direction, the meshing pressure of the meshing portion 6 decreases, and the meshing pressure suitable for the user is obtained. Adjustable to pressure.

[0015]

As described above, according to the structure of the pivoting portion of the haircutting scissors of the present invention, the supporting plate piece 7 is superposed on the flat portion 4 of the one blade 1 and one end thereof is pivoted to the pivot shaft 8. By flat part 4
It is pivotally attached to the central part of the support plate piece 7 and the double-edged body 1,
2 flat portions 4 and 5 with a small space 19 between the flat portions 4 and 5.
Since the flat portions 4 and 5 are not slidably contacted with each other as in the conventional haircutting scissors since they are pivotally attached by the pivot shaft 3 in the closed state , not only can the occurrence of shoe scratches be eliminated,
The blades 1 and 2 can be opened and closed easily, thus reducing fatigue and enabling long-time hairdressing work.
It will be.

Furthermore, since the adjusting screw 9 is screwed into the other end of the supporting plate piece 7 and the tip thereof is pressed against the flat portion 4 of one blade 1, the adjusting screw 9 is rotated. By doing so, the gap between the two blade bodies 1, 2 can be finely adjusted, and the adjustment can accurately adjust the meshing pressure of the meshing portion 6 of the both blade bodies 1, 2 to a meshing pressure suitable for the user. The hairdressing work can be performed efficiently.

[Brief description of drawings]

FIG. 1 is an enlarged vertical side view of a pivotal attachment portion of a double-edged body,

FIG. 2 is a plan view of haircutting scissors having the pivot structure.

FIG. 3 is a simplified side view thereof,

FIG. 4 is a simplified side view of conventional haircutting scissors.

[Explanation of symbols]

 1 Blade 2 Blade 3 Pivot 4 Flat 5 Flat 6 Engagement 7 Support Plate 8 Support Spindle 9 Adjusting Screw 10 Shaft Cylinder 15 Center Hole 16 Center Hole 19 Small Spacing

Claims (1)

[Scope of utility model registration request] 1. A barber scissor in which flat portions (4, 5) formed at the bases of blade bodies (1), (2) are pivotally attached by a pivot shaft (3), on flat portion (4) of one blade body (1). The support plate piece 7 is superposed on the base plate, and one end of the support plate piece 7 is pivotally attached to the flat part 4 by a pivot 8 and the central part of the support plate piece 7 and the flat parts of the two blades 1, 2 are joined together.
4 and 5 with a small gap 19 between the flat parts 4 and 5
And then is pivotally attached by the pivot 3 , and further, an adjusting screw 9 is screwed into the other end of the support plate piece 7 and the tip thereof is pressed against the flat portion 4 of the one blade body 1 for hairdressing. Structure of the pivot point in.