Tools – Including tool driving by impact delivering component or... – Motor or gear driven
Patent
1985-02-22
1986-04-15
Bell, Paul A.
Tools
Including tool driving by impact delivering component or...
Motor or gear driven
81434, 81435, 227136, 227120, B25B 1900, B25B 2100
Patent
active
045819645
ABSTRACT:
A fastener driving tool comprising a tool body defining a fastener drive track, a fastener driver mounted in the drive track for movement through successive drive and return strokes, a magazine providing a space for retaining a coiled strip of fasteners, a guide passage leading from the magazine to the drive track along which a leading end portion of the strip with supported fasteners can be moved, and a fastener feeding mechanism for moving the leading end portion of the strip with fasteners along the guide passage. The feeding mechanism includes a L-shaped member having a horizontally extending portion and a vertical portion extending upwardly therefrom. The L-shaped member is disposed with respect to the guide passage such that the horizontal extending portion extends through a continuous longitudinal gap in the strip and the vertically extending portion extends alongside the inner surface of the continuous wall of the strip defining the upper portion of the gap. The feeding mechanism also includes a feeding pawl mounted for movement through successive operative cycles each of which includes a feed stroke and a return stroke, and a piston and cylinder unit for effecting movement of the pawl such that the same will be engaged within one of a series of notches formed in the lower edge of the continuous wall of the strip at the end of each return stroke so that the strip will be moved with the pawl during the drive stroke thereof.
REFERENCES:
patent: 3450255 (1969-06-01), Mosetich
patent: 3543987 (1970-12-01), Obergfell
patent: 3885669 (1975-05-01), Potucek
patent: 4508254 (1985-04-01), Fujiwara
Bell Paul A.
Max Co. Ltd.
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