| 摘要 |
PROBLEM TO BE SOLVED: To reduce the inertia force and to reduce the number of parts required for the power transmission mechanism. SOLUTION: A press machine 10 includes plural crank shafts 18 supported with frames 12, 14, 16 so that rotary axial lines are extended parallel, a york 20 to connect crank shafts 18 in order to transmit the rotary motion of at least one crank shaft to the other crank shaft, and plural connecting rods which are connected at one end part to the eccentric part of the crank shaft 18 and which have the other end part connected to the moving body arranged so as to freely reciprocate on the frame. |
