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Title:
SCISSORS
Document Type and Number:
Japanese Patent JP2013240399
Kind Code:
A
Abstract:

To provide scissors 10 which can cut an object to be cut easily in a stable condition by using cutting blades 27 from roots to tips thereof.

Scissors 10 are provided wherein in a curved shape of cutting blades 27, assuming that when the scissors 10 are opened, a distance between an intersection point where the left and right cutting blades 27 intersect and a rotational center is Y, a line connecting the intersection point where the left and right cutting blades 27 intersect and the rotational center is a rotation reference line B, a distance from the rotational center of the scissors 10 to fixed points A on the left and right cutting blades 27 is R (mm), an angle at which a line connecting the fixed point A on one of the cutting blades 27 and the rotational center intersects the rotation reference line B is θ (rad), and an angle which is formed by tangents touching the fixed points A on the left and right cutting blades 27 is X (rad), the shape of the cutting blades 27 is expressed by a polar equation: R=Y*exp(θ*Cot(X/2)).


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Inventors:
YONEZU YUSUKE
YOSHIDA NAOYA
Application Number:
JP2012114335A
Publication Date:
December 05, 2013
Filing Date:
May 18, 2012
Export Citation:
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Assignee:
PLUS KK
International Classes:
B26B13/06
Domestic Patent References:
JPS6368972U1988-05-09
JPS5296482A1977-08-13
JPS5465895A1979-05-26
JPH0125556Y21989-07-31
JPH0551248U1993-07-09
Foreign References:
US4422240A1983-12-27
Attorney, Agent or Firm:
Kiyoshi Mizuno
Hitoshi Kitamura
Tatsuo Itami



 
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