Elongated-member-driving apparatus – With interlock means
Patent
1993-04-14
1994-11-22
Smith, Scott A.
Elongated-member-driving apparatus
With interlock means
227130, B25C 104
Patent
active
053661320
ABSTRACT:
A fastener driving device including a housing having a power operated drive therein. A fastener driving element is slidably mounted in a drive track and operatively connected with the power operated drive so as to drive a leading fastener fed into the drive track from a magazine outwardly of the drive track and into a workpiece during a drive stroke of the drive. An actuating mechanism includes a contact trip element and a trigger member and is operable to actuate the power operated drive in response to the movement of the contact trip element and the trigger member into operative positions. The actuating mechanism is such that an unwanted actuation of the power operated drive will occur in response to an inadvertent impact of the housing with a foreign object during an upward manual movement of the housing while the operator is exerting digital pressure on the trigger member by the continued upward movement of the contact trip from the inoperative position thereof into the operative position. An actuation preventing mechanism is provided for preventing an unwanted actuation of the power operated drive in response to an inadvertent impact of the housing with a foreign object during an upward manual movement of the housing.
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Smith Scott A.
Stanley-Bostitch Inc.
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