Sequential pivot pin multiplier

Details Sequential pivot pin multiplier Sequential pivot pin multiplier

1992-06-09

1993-10-12

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating to reciprocating

72450, 72452, 74516, 74522, F16H 2110, B21J 918

Patent

active

052515028

ABSTRACT:
A mechanical force enhancement device which both amplified an input force to produce a larger output force while also reducing the speed of an output member during the latter part of the output stroke. The device employs a sequential pivoting operation which is capable of providing the above results while being uncomplicated in its design and construction. The device includes a housing having a pair of spaced-apart camming plates. Each camming plate has a pair of opposing camming contours formed therein so as to define two sets of spaced-apart camming contours. At one end of each camming contour is a recess so as to define two sets of spaced-apart recesses. A linkage member is disposed between the camming plates and includes a driven end adjacent one of the sets of spaced-apart camming contours and a driving end adjacent the other set of spaced-apart camming contours. The linkage member also includes a pair of camming members, each of which engages a corresponding one of the sets of spaced-apart camming contours. The camming members are able to engage their respective recesses only when the other camming member is engaged with its respective camming contours. A stroking device is engaged with the driven end of the linkage member and a rod is engaged with the driving end to reciprocate relative to the housing. A tool can be attached to the distal end of the rod to perform work on a workpiece.

REFERENCES:
patent: 3453914 (1969-07-01), Lemper et al.
patent: 3482830 (1969-12-01), Sendoykas
patent: 3680400 (1972-08-01), Lemper et al.
patent: 3926033 (1975-12-01), Forichon
patent: 4429589 (1984-02-01), Stocker
patent: 4932128 (1990-06-01), Dacey, Jr.

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