Presses – Reciprocating press construction – With mechanical force multiplier
Patent
1985-10-18
1987-01-27
Wilhite, Billy J.
Presses
Reciprocating press construction
With mechanical force multiplier
72452, 74 55, 83628, 100292, B30B 106
Patent
active
046387315
ABSTRACT:
A press machine has a frame; a horizontal input shaft rotatably carried by the frame and rotationally driven by a driving system; a cam means including at least one cam mounted on the input shaft; a cam follower means including a cam follower slide embracing the cam and mounted on the frame for free vertical movement, the cam follower slide being adapted to be moved reciprocatingly up and down in accordance with the rotation of the cam; a movable die portion fixed to the lower end of the cam follower slide; and a stationary die portion provided on the bottom of the frame for cooperation with the movable die portion. The cam has a contour which approximates a spherical regular polygon such as a spherical triangle, having 2n+1 apices (n being an integer) which are rounded, the surfaces of the sides of the spherical regular polygon being formed by the same curve.
REFERENCES:
patent: 1091098 (1914-03-01), Valiquet
patent: 2387421 (1945-10-01), Bergh
patent: 2759366 (1956-08-01), Reid
patent: 2857968 (1958-10-01), Cousino
patent: 3768359 (1973-10-01), Koefferlein
patent: 3785194 (1974-01-01), Bradlee
Page 52 from book entitled "Getriebetechnik", 1930 by H. J. Knab.
Sankyo Manufacturing Co. Ltd.
Wilhite Billy J.
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