Patent ID: 9427865
Filing Date: 2016-08-30
CPC Classification: B25J,F16M

Claim Text:
1. A system for supporting an arm of a user while using tool, comprising: a harness configured to be worn on a body of a user, the harness comprising a shoulder harness configured to be worn over or around one or both shoulders of the user including a first pivot point above the shoulder of a user when the harness is worn by the user; an arm support comprising a first arm support segment pivotally coupled to the first pivot point, a second arm support segment pivotally coupled to the first arm support segment for supporting an upper arm of the user, and a third arm support segment pivotally coupled to the second arm support segment for supporting a lower arm of the user; a linkage coupled between the first arm support segment and the third arm support segment such that a vertical angle of the third arm support segment is not affected by rotation of the second arm segment; a tool mount coupled to the third arm support segment; and a first set of compensation elements coupled to the second arm support segment for at least partially offsetting a gravitational force acting on the upper arm, and a second set of compensation elements coupled to the third arm support segment for at least partially offsetting a gravitational force acting on the lower arm.