Breakage prevention mechanism of a transfer apparatus and transfer apparatus use of the breakage prevention mechanism

摘要

A breakage prevention mechanism includes a pair of arms which is synchronized and moves approximately parallel, and a crossbar bridged between the top end of the arms. Both end of the crossbar and the arm are connected pivotably around two axis. Both end of the crossbar are configured to be slidable against the arm in X axis direction. A plunger is placed between both end of the crossbar and arm, which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given.

主权项

1. A breakage prevention mechanism of a crossbar system transfer apparatus, comprising;
a pair of transferring members that is synchronized and moves in approximately parallel with each other, a crossbar connected with the pair of transferring members so as to be bridged between the pair of transferring members, a pivoting block provided so as to be pivotable around a Z axis of an approximately vertical direction to a Y axis of a work transfer direction, and a slide block fixed to an end portion of the crossbar, wherein both ends of the crossbar and the transferring member express a pivoting state being pivotable around the Z axis and the Y axis, and being approximately centered at a connection portion of the transferring member and the crossbar, at the same time, at least one end of the crossbar in the connection portion expresses a sliding state being slidable in an X axis of the axis direction of the crossbar to the transferring member, a through groove extending in the X axis direction to which the crossbar is extended is formed in one of the pivoting block and the slide block, and a pivoting support portion is provided in the other of the pivoting block and the slide block, and a slide member is supported by the pivoting support portion so as to be pivotable, and the slide member is fitted to the through groove so as to be slidable.