| 主权项 |
1. An arm support apparatus for supporting an arm of an operator, the arm support apparatus comprising:
a longitudinal mount on which a part of the arm of the operator is mountable, the longitudinal mount having a first end, a second end opposite to the first end in a longitudinal direction thereof, and a predetermined lateral width; a support member that has at least one joint and supports the longitudinal mount to be movable based on bending of the at least one joint; a first limiter that limits motion of the at least one joint to limit movement of the longitudinal mount when an operation mode of the arm support apparatus is set to a first mode, the first limiter releasing limit of motion of the at least one joint to release limit of movement of the longitudinal mount when the operation mode of the arm support apparatus is set to a second mode; a biasing mechanism that applies biasing force to the longitudinal mount to bias the longitudinal mount upwardly when the operation mode of the arm support apparatus is set to the second mode; a grippable member connected to the longitudinal mount and located such that a part of the grippable member is grippable by a hand of the arm when the part of the arm is mounted on the longitudinal mount, the hand being located to be closer to the first end of the longitudinal mount than to the second end of the longitudinal mount; and a second limiter that limits movement of the part of the arm mounted on the longitudinal mount in both a first direction and a second direction, the first direction being away from the second end of the longitudinal mount in the longitudinal direction, the second direction being parallel to the lateral width of the longitudinal mount and perpendicular to the longitudinal direction. |
