Importance

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Abstract

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

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First Claim