Cutting – Means to drive or to guide tool – Means to change datum plane of tool or tool presser stroke
Patent
1990-04-20
1991-10-01
Rosenbaum, Mark
Cutting
Means to drive or to guide tool
Means to change datum plane of tool or tool presser stroke
83615, 83632, 74603, 100257, B30B 500
Patent
active
050522574
ABSTRACT:
The balancing weights are hingedly mounted at their lower ends to link rods. These link rods are hingedly mounted to an extended section of first rods. At opposite ends the balancing weights are hingedly mounted to reversing levers that in turn are hingedly mounted to second rods. The first rods and the second rods are supported on a common eccentric sleeve. Accordingly, the drive of the balancing weights does not come from structural members of the machine which are directly mounted to the ram. Accordingly, no mass forces and oscillations of the balancing weights and of the structures driving same can be transmitted onto the ram. Conclusively, the moving sequence of the ram and accordingly the cutting or embossing action is no longer influenced detrimentally such that the quality of a respective product produced is improved.
REFERENCES:
patent: 4156387 (1979-05-01), Portmann
patent: 4757734 (1988-07-01), Portmann
Bruderer AG
Rosenbaum Mark
Schrock Allan M.
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