Scroll saw

Details Scroll saw Scroll saw

1991-07-01

1992-08-18

Watts, Douglas D.

Cutlery

Cutting tools

Saw

30393, 83783, B23D 4904, B23D 4910, B23D 5500

Patent

active

051387697

ABSTRACT:
A scroll saw having a blade includes a body, a piston connected to the blade as to be moved upwardly and downwardly, and a motor for driving the piston upwardly and downwardly. A hung member is removably secured to the sawing blade. A pulled-down member is removably secured to the other end of the blade. A hanger is engaged with the hung member, and an arm secured to the body is configured so as not to interfere with the workpiece. A pulling-down member is engaged with the pulled-down member, and a suspension unit including a spring is attached to the arm and adapted to tension the blade by the elastic restoring force of the spring as the piston moves. The scroll saw machine is appropriately used as a fixed-installation type or a hand-held type saw.

REFERENCES:
patent: 1839647 (1932-01-01), Combs
patent: 3895438 (1975-07-01), Burkepile et al.
patent: 4503742 (1985-03-01), Sutton
patent: 4838138 (1989-06-01), Rice
patent: 4949616 (1990-08-01), Chang
patent: 4953431 (1990-09-01), Chen
patent: 5018420 (1991-05-01), Plomb

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