Control system for a vehicle press
OwnerThomas G. Cantine, Jr., Robert J. Stacyinventors
Life of this patent
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Abstract
An automatic control system for use with a known type of vehicle crushing press that is presently equipped with manual or semi-automatic controls. The press includes a base and a pressure head that can be moved vertically toward the base to crush a vehicle positioned thereon. Movement of the pressure head is effected by an independently operable hydraulic cylinder at each end of the head, and the control system of the invention is adapted to be integrated with the hydraulic system for the cylinders. The control system provides for automatic skewing of the pressure head during the crushing operation, automatic termination of the crushing operation and, if desired, automatic repetition of the operation after a predetermined time lapse.
Claims5
A control system for a vehicle crushing press, said press including an elongated base, an elongated pressure head that can be moved vertically toward the base to crush a vehicle positioned thereon and a power unit at each end of the pressure head for moving the latter toward and away from the base;
- the improvement comprising a lower control and a raise control normally operable to simultaneously actuate the pressure head power units to respectively move the head toward or away from the base, a skew control forming a part of the lower control and operable when actuated to cause alternate actuation of the pressure head power units, means responsive to a build-up of a first predetermined pressure in either power unit to actuate the skew control, means responsive to the build-up of a second and higher predetermined pressure in both power units to render the lower control inoperable and the raise control operable, and means forming a part of the raise control to render the latter inoperable when the pressure head reaches its uppermost position.
Dependencies are inferred from the claim text.