| 摘要 |
<p>In a motor-operated press mechanism, a rocking link is rockingly supported by a supporting shaft which is pivotally supported by a top plate of a press machine, while a crank shaft which supports a crank is supported on one end portion of the rocking link, and a drive section is provided on the other end portion of the rocking link as opposed to the one end portion with respect to the supporting shaft, which, in an ordinary press working operation, regulates the position of the rocking link so that the crank shaft, the supporting shaft, and the press ram are substantially on a straight line, and, in a resetting operation after jamming or in an emergency during a press working operation, swings the rocking link so that the press ram is moved to a retracting position above the position where it is located in the ordinary press working operation. <IMAGE></p> |
