Support Arm For Wheel Balancer Air Inflation Hose

原文（中国語）

A wheel balancing system having an air supply system including a retractable air hose carried within a pivoting support arm adjacent to a pivoting hood assembly for partially enclosing a wheel assembly mounted to a rotationally driven spindle. The retractable air hose couples a source of pressurized air to an air chuck configured for attachment to a wheel assembly inflation valve. A retraction mechanism contained within the pivoting support arm enables the air chuck and air hose to be drawn from the pivoting support arm during use, and to be automatically retracted to a stowed positioned within the support arm when not in use.