Patent ID: 7234337

Claim:
A punch press, comprising: a motor; a ram which is installed so as to freely elevate and lower and which drives a press tool; a crank mechanism which converts a rotating motion transmitted to a crank shaft into an elevating and lowering operation of said ram; and a drive transmitting mechanism which transmits rotation of the motor to said crank shaft while reducing a rotation speed, said motor being placed by the side of said crank mechanism so that a rotating axis of said motor is parallel to an axis of said crank shaft, said motor having a concentric first and second output shaft portions projecting from respective sides of the motor, opposite ends of said crank shaft being a first and second input shaft portions, respectively, said drive transmitting mechanism having a first drive transmitting section which transmits rotation from said first output shaft portion to the first input shaft portion of said crank shaft and a second drive transmitting section which transmits rotation from said second output shaft portion to the second input shaft portion of said crank shaft.