| 摘要 |
PROBLEM TO BE SOLVED: To reduce the load of a worker by eliminating half-sitting work.SOLUTION: A synchronous carriage is used in a vehicle assembly line in which a worker attaches a part to a being carried vehicle and is movable in synchronization with the vehicle and includes a the synchronous carriage body part 12, a chair 30 which can be folded in the synchronous carriage body part 12 or mounted in an expandable way and allows a worker to carry out part assembly work as seating at the expansion position, an urging mechanism which applies a force to the chair 30 in the folding direction, an expansion holding mechanism for holding the chair 30 at the expansion position against the force of the urging mechanism and a lock release mechanism 60 which can release the holding condition of the expansion holding mechanism through an operation of the worker. |
