Patent ID: 6595125
Filing Date: 2003-07-22
Classification: B30B

Abstract:
A slide drive unit of a press, comprising:a main gear (11); a main gear supporting fixed shaft (20) for the main gear to be supported; a double-arm link (12) and a single-arm link (13) rotatably fitted to an eccentric drum (11A) integrated with the main gear (11) of which a rotation center is eccentric relative to the main gear supporting fixed shaft; a connecting rod (14) connected to one end of the double-arm link (12); an intermediate link (15) connected to the other end of the double-arm link (12); and a triaxial link (16) rotated around a fixed shaft (23) parallel to the main gear supporting fixed shaft (20), the triaxial link being connected with the intermediate link (15) and the single-arm link (13), wherein an angle (&thgr;) formed by a straight line (A) connecting a connecting shaft (24) of the intermediate link (15) with the fixed shaft (23) of the triaxial link (16) and another straight line (B) connecting a connecting shaft (25) of the single-arm link (13) and the triaxial link (16) and the fixed shaft (23) of the triaxial link (16) is acute.