| 摘要 |
A suction unit includes a rotary driving source which is arranged outside of a casing, a substantially oblong circular crank member which is rotatable and which is connected to a rotary shaft of the rotary driving source, a connecting rod which has one end rotatably supported on one end of the crank member, a connecting member on which the other end of the connecting rod is rotatably supported, a shaft which is inserted into the casing and which has a substantially central portion to which the connecting member is connected, and a suction pad which is attached to one end of the shaft and which attracts a workpiece.
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