| 摘要 |
PROBLEM TO BE SOLVED: To change a stroke in a short time. SOLUTION: A press comprises a link mechanism having a pair of levers connected to each other so as to be expanded/contracted by the rotational motion of a crank shaft, and an eccentric shaft disposed on a frame rotatably around the axis extending in a horizontal direction, the eccentric shaft is connected to the link mechanism via a connection piece, one lever and the other lever are connected to the crank shaft and a slide, respectively, and the crank shaft and the eccentric shaft are rotated by separate drive sources.
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