Positive lock for infinite adjustable stroke mechanism
AssigneeThe Minster Machine Company
InventorsJohn B. Bornhorst, Richard J. Oen, Charles H. Dickman
Life of this patent
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Abstract
A positive lock for infinite adjustable stroke alignment mechanism for a mechanical press with an eccentric bushing disposed within a press connection member with a second eccentric member disposed within the eccentric bushing. A rotatable crankshaft is connected to the second eccentric member. A positive lock alignment mechanism is included for aligning the press connection member with the eccentric bushing to prevent rotation therebetween and permitting rotation of the second eccentric member with the eccentric bushing for infinite stroke adjustment whereby rotation of the crankshaft, when the mechanism is activated causes a press stroke adjustment.
Claims12
A mechanical press comprising:
- a press connection member;
- an eccentric bushing disposed within said press connection member;
- a second eccentric member disposed within said eccentric bushing creating an interface therebetween, said second eccentric member releasably connectable with said eccentric bushing;
- a rotatable crankshaft connected to said second eccentric member;
- a means for connecting said eccentric bushing with said press connection member by a temporary press fit to prevent rotation there between whereby rotation of said crankshaft when said means is activated then causes a press stroke adjustment;
- and
- a means for aligning said press connection member and said eccentric bushing during said press stroke adjustment, said alignment means being mounted in said press connection member, said alignment means being selectively actuatable into a positive lock position with said eccentric bushing, said positive lock position with said eccentric bushing defining a first limit of movement for said alignment means.
A mechanical press comprising:
- a press connection member;
- an eccentric bushing disposed within said press connection member;
- a second eccentric member disposed within said eccentric bushing creating an interface therebetween, said second eccentric member releasably connectable with said eccentric bushing;
- a rotatable crankshaft connected to said second eccentric member;
- a means for connecting said eccentric bushing with said press connection member by a temporary press fit to prevent rotation there between whereby rotation of said crankshaft when said means is activated then causes a press stroke adjustment;
- and
- a means for aligning said press connection member and said eccentric bushing during said press stroke adjustment, said means of alignment including at least one of a double acting cylinder and a spring to hold the alignment means in position to ensure that the alignment means and connection member do not collide during the operation of the press.
Dependencies are inferred from the claim text.