Elongated-member-driving apparatus – With interlock means
Patent
1983-01-27
1986-02-18
Meister, James M.
Elongated-member-driving apparatus
With interlock means
227114, 227120, 227130, B25C 102
Patent
active
045708401
ABSTRACT:
A fore chamber assembly of a nailing gun serially feeds nails by gravity through a channel into a firing chamber. A nail head fence prevents the heads of trailing nails from underriding the heads of preceding nails and getting more than one nail in the firing chamber. The fence is vertically adjustable to work on different thickness nail heads. A safety link prevents firing of the gun unless the gun abuts the structure to be nailed and in that attitude applies a friction lock to nails in the fore chamber to prevent kickback of these nails upon gun firing. This lock is through a sliding cam and lever that engages a resilient button that in turn engages some of the nails. A feed magazine has spaced rails defining a slot that accepts loose nails in any orientation so long as their heads are on the rails with the nail shanks in the slot. The magazine rails are secured together by a cover that overlies the slot and nail heads and depending flanges that attach to the rails. A keeper interdicts the firing chamber to engage a nail in the chamber and hold it in place, and retracts under the force of the nail driver against the bias of a spring upon gun firing.
REFERENCES:
patent: 2879509 (1959-03-01), Congden
patent: 3437249 (1969-04-01), Baum
patent: 3491932 (1970-01-01), Novak
patent: 3580455 (1971-05-01), Cast
patent: 3820705 (1974-06-01), Beals
patent: 3920169 (1975-11-01), De Caro
patent: 4136810 (1979-01-01), Bull
patent: 4139136 (1979-02-01), Catalano
patent: 4313552 (1982-02-01), Maurer
patent: 4326661 (1982-04-01), Maurer
Knoble John L.
Meister James M.
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