Elongated-member-driving apparatus – With interlock means
Patent
1987-10-01
1988-05-31
Bell, Paul A.
Elongated-member-driving apparatus
With interlock means
227131, B25C 515
Patent
active
047475307
ABSTRACT:
A safety punching device for staple guns comprising a safety plate extending beyond a staple outlet, a tapered block disposed at the upper end of the safety plate, a horizontal plate contacting with the inclined surface of the tapered block at left end, a pushing block disposed at right end of the horizontal plate to control a safety switch and a resilient sheet engaged with the left end of the horizontal plate to move above-mentioned means back when released. The trigger is pulled and the safety plate is pressed inwardly in order to punch a staple out of the staple gun.
REFERENCES:
patent: 3786978 (1974-01-01), Manganaro
patent: 4298072 (1981-11-01), Baker et al.
patent: 4417681 (1983-11-01), Bernecki et al.
patent: 4573621 (1986-03-01), Merkator et al.
patent: 4573624 (1986-03-01), Muller et al.
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