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(11) | EP 1 207 038 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Press machine |
(57) This press machine comprises a crankshaft (16) rotatably supported on a frame (14)
and a power transmission (30) for transmitting rotary motion of the crankshaft to
a slide (20). The power transmission includes: a bell crank (70) supported on the
frame so as to oscillate about an axis parallel to the rotation axis of the crankshaft;
a connection member (72) for connecting the bell crank and the slide so that the slide
can perform vertical motion with oscillation of the bell crank; a slider (38) disposed
on the frame so as to move vertically; a connecting mechanism (36) connected with
the crankshaft, the bell crank and the slider so that the bell crank can oscillate
with rotation of the crankshaft; and a position adjusting mechanism (40) for adjusting
the position of the slider vertically. |