| 主权项 |
1. An arm support apparatus for supporting an arm of an operator, the arm support apparatus comprising:
an arm holder having a longitudinal mount on which a forearm of the operator's arm is mountable, the longitudinal mount having a first end and a second end opposite to the first end in a longitudinal direction thereof; an elbow locator provided on the first end of the mount, the elbow locator locating an elbow of the operator's arm when the forearm is mounted on the mount; a multijoint supporting member having a plurality of joints and movably supporting the mount via motions of the joints; and at least one weight provided on at least part of the multijoint supporting member, the at least one weight suppressing movement around at least one of the joints based on gravity while the forearm is mounted on the mount, the joints including a rotary joint having a rotary axis, the rotary axis having a vertical component, the mount being rotatably joined to the rotary joint, while the forearm is mounted on the mount so that the elbow of the operator's arm is located by the elbow locator, the rotary axis being located with a distance with respect to the elbow to enable both the first and second ends of the mount to swing about the rotary axis, the distance being set to be equal to or longer than 50 mm, wherein the arm holder comprises a rotating member rotatably joined to the rotary joint, the mount being mounted on a surface of the rotating member, the mechanism comprises: a plurality of adjustment holes formed through the mount and aligned in the longitudinal direction of the mount; at least one hole formed on the surface of the rotating member; and at least one bolt being fixedly fitted through at least one selected adjustment hole in the plurality of adjustment holes in the at least one hole of the rotating member. |
