Cutlery – Cutting tools – Saw
Patent
1990-07-26
1991-07-30
Watts, Douglas D.
Cutlery
Cutting tools
Saw
30273, B23D 4906, B26B 700
Patent
active
050350595
ABSTRACT:
A hand-held scroll saw having a blade includes a body having a handle provided at the upper portion of the body, a foot plate provided at the lower portion of the body so as to be slid on a workpiece which is to be cut by the saw, a piston provided over the front portion of the plate so as to be moved upwardly and downwardly, and a motor provided between the handle and the plate so as to move the piston up and down. A hung member is removably secured to the sawing blade at the upper end thereof, and a hanger is secured to the piston at the lower end thereof and engaged with the hung member. A U-shaped arm having an upper portion secured to the body and a lower portion located near the lower end of the blade so that the arm does not interfere with the workpiece. A pulled-down member is removably secured to the blade at the lower end thereof, and a pulling-down member is engaged with the pulled-down member. A spring is attached to the arm so as to pull the pulled-down member downwardly by the elastic restoring force of the spring as the piston is moved downwardly.
REFERENCES:
patent: 2738812 (1956-03-01), Waddell
patent: 2762122 (1956-09-01), Hermann
patent: 3097430 (1963-07-01), Lewinski et al.
patent: 3412767 (1968-11-01), Green, Jr.
patent: 3895438 (1975-07-01), Burkepile et al.
patent: 4365397 (1982-12-01), Felpel
patent: 4670986 (1987-06-01), Chen
patent: 4949464 (1990-08-01), Adomatis
Miyamoto Kouichi
Takahashi Shoji
Heyrana Sr. Paul M.
Ryobi Ltd.
Watts Douglas D.
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