Patent ID: 9505137
Filing Date: 2016-11-29
CPC Classification: B25J,F16H,Y10S,Y10T

Claim Text:
1. A Scott Russell mechanism device, comprising: a main arm member; a sub arm member pivotably coupled to the main arm member by a coupling shaft; and an angle changer for changing a coupling angle between the main arm member and the sub arm member, wherein a base end part of the main arm member and a base end part of the sub arm member that is on the opposite side from the coupling side of the sub arm member are positioned on the same virtual straight line, and a first distance from the base end part of the main arm member to a coupling position of the main arm member to the sub arm member, a second distance from the coupling position of the main arm member to a tip end part thereof, and a third distance from the base end part of the sub arm member to the coupling position are equal to each other, wherein the main arm member is protrudingly provided with a convex part at a side coupled to the sub arm member on the coupling position, wherein the main arm member is formed into a boomerang shape such that the coupling position is curved to make the base end part of the main arm member, the coupling shaft of the convex part, and the tip end part of the main arm member positioned on a same straight line, and wherein an angle of the side coupled to the sub arm member on the coupling position is made narrower than 180°.