Patent ID: 8915348
Filing Date: 2014-12-23
Classification: B21D,B25J

Abstract:
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.