Press with hydraulically operated linkage mechanism with rollers

Details Press with hydraulically operated linkage mechanism with rollers Press with hydraulically operated linkage mechanism with rollers

1996-09-16

1998-09-01

Gerrity, Stephen F.

Presses

Reciprocating press construction

Fluid pressure actuation

7245303, 100285, B30B 108

Patent

active

057995737

ABSTRACT:
A single-cylinder hydraulic press has a ram member spaced apart from a lower head die, and a work area being defined therebetween. The cylinder and the piston rod enable reciprocating movement of the ram member relative to the lower head die. A linkage mechanism enables cooperative engagement between the piston rod and the ram member. The linkage mechanism provides rolling contact with the ram member along four distinct linear locations. The linkage mechanism includes four pivot brackets, enabling pivotal rotation of the bell cranks relative thereto, and two lever pins retaining the bell cranks with the piston rod. Sandwiched between the bell cranks are two cam followers, which are driven upwardly and downwardly by the piston rod, the bell cranks each including a pair of rollers which engage with the ram member and provide "four point" contact therewith.

REFERENCES:
patent: 153289 (1874-07-01), Walker
patent: 178174 (1876-05-01), Martin
patent: 402636 (1889-05-01), Webb
patent: 553827 (1896-02-01), Block
patent: 2105053 (1938-01-01), Patrick
patent: 2135299 (1938-11-01), Benander
patent: 2204413 (1940-06-01), Hubbert
patent: 3196700 (1965-07-01), Gron
patent: 3908541 (1975-09-01), Meidell
patent: 4457684 (1984-07-01), Gram
patent: 4470787 (1984-09-01), Gram
patent: 5361662 (1994-11-01), Levy
patent: 5365818 (1994-11-01), Levy
patent: 5463892 (1995-11-01), Nakagawa

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