公开(公告)号：US20140290071A1

公开(公告)日：2014-10-02

申请号：US14224333

申请日：2014-03-25

Applicant: PLUS CORPORATION

Inventor： Naoya YOSHIDA

IPC: B26B13/06

CPC classification number: B26B13/06

Abstract: Scissors include two scissor members. The two scissor members are pivotably connected with a joint member. The each scissor member includes a blade portion linked to a connecting portion. The blade portion includes a curved blade and an intermediate portion width between a tip and a base portion is made widest. The curved blade includes a receding portion between an end portion of the base portion side and a side edge of the connecting portion and is formed such that a curvature is larger at a base portion side than a tip side. An arc-shaped surface groove is formed on a rear surface of the blade portion along the curved blade. The blade portion is formed such that the rear surface thereof is formed in a concave shape so as to form the arc-shaped surface groove.

Abstract translation: 剪刀包括两个剪刀成员。 两个剪刀构件与接头构件可枢转地连接。 每个剪刀构件包括连接到连接部分的叶片部分。 叶片部分包括弯曲刀片，并且在尖端和基部之间的中间部分宽度最宽。 弯曲刀片包括在基部侧的端部与连接部的侧缘之间的后退部，并且形成为比尖端侧的基部侧的曲率大。 沿着弯曲的刀片在刀片部的后表面上形成弧形的表面槽。 刀片部分形成为使得其后表面形成为凹形以形成弧形表面槽。

公开(公告)号：US20130305543A1

公开(公告)日：2013-11-21

申请号：US13895532

申请日：2013-05-16

Applicant: PLUS CORPORATION

Inventor： Yusuke YONETSU ,  Naoya YOSHIDA

IPC: B26B13/06

CPC classification number: B26B13/06

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: R=Y*exp(θ*Cot(X/2)).

Abstract translation: 假设剪刀打开时，左右切割刀片交叉的交点与旋转中心之间的距离为Y，将交叉点连接到左侧的线，设置有切割刀的弯曲形状的剪刀 并且右切割刀片相交并且旋转中心是旋转基准线B，从剪刀的旋转中心到左右切割刀片上的固定点A的距离为R（mm），连接 与旋转基准线B相交的切割刀片和旋转中心之间的固定点A为θ（rad），并且由左右切割刀片上的固定点A的切线形成的角度为X（rad） 切割刀片的形状由极坐标方程表示：R = Y * exp（θ* Cot（X / 2））。