Counterbalanced reciprocating mechanism

Details Counterbalanced reciprocating mechanism Counterbalanced reciprocating mechanism

1990-11-13

1992-01-14

Watts, Douglas D.

Cutlery

Cutting tools

Saw

30393, 74 50, B23D 4916, B23D 4900, F16H 2118

Patent

active

050798448

ABSTRACT:
The motor drives the crown gear which has an upwardly projecting eccentric drive pin which drivingly engages the channel fixed on the spindle which reciprocates in the fixed tube and supports a saw blade. The induced vibration is counterbalanced by the reciprocating counterbalance which slides on the outside of the tube. The crown gear has a cylindrical drive member which engages the cylindrical hole in the transfer block. The transfer block is moved in an orbital path and the opposed parallel sides engage and reciprocate the counterweight. The crown gear and cylindrical drive member have material removed to counterbalance the two drives.

REFERENCES:
patent: 3170496 (1965-02-01), Kohler et al.
patent: 3863342 (1975-02-01), Griffies et al.
patent: 3971132 (1976-07-01), Griffies et al.
patent: 4699036 (1987-10-01), Henne
patent: 4976164 (1990-12-01), Lentino

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