Tool driving or impacting – Convertible
Patent
1996-01-25
1997-01-21
Smith, Scott A.
Tool driving or impacting
Convertible
30376, 30392, 30500, 144 486, 408 20, B23D 5110
Patent
active
055952500
ABSTRACT:
The drill attachment is a cordless, electric or pneumatic drill device having three (3) flush cut features which enables user to saw in a reciprocating action. A compact metal enclosure has steel bevel gears together to generate perpetual motion onto an eccentric peg to drive arm to blade. The rotation of the drill enters the tool by the removable hexagonal shaft which can be inserted into the tool at three (3) different angles depending on the task. The small bevel gear meshes with a larger bevel hub gear having an eccentric peg that is inside an elongated slot of the blade drive armature. As the small bevel gear rotates, its speed is increased by ratios in the larger bevel hub gear; the rotation of the larger bevel hub gear is converted to a linear reciprocating motion which drives the blade.
REFERENCES:
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patent: 2547922 (1951-04-01), Bechtold
patent: 2631619 (1953-03-01), Folli
patent: 2713271 (1955-07-01), Dodegge
patent: 2764188 (1956-09-01), Hoffman
patent: 2822005 (1958-02-01), Lee et al.
patent: 3398588 (1968-08-01), Mejia
patent: 3496972 (1970-02-01), Rees
patent: 3876015 (1975-04-01), Kivela
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