Convertible contact/sequential trip trigger

Details Convertible contact/sequential trip trigger Convertible contact/sequential trip trigger

1994-08-10

1996-09-03

Rada, Rinaldi I.

Elongated-member-driving apparatus

With interlock means

227130, 227120, B25C 104

Patent

active

055516203

ABSTRACT:
A fastener driving tool including an improved trigger assembly including control structure constructed and arranged to be manually movable between (1) a sequential operating mode position whereby movement of a contact responsive assembly to its operative position followed by movement of the trigger assembly to its actuated position moves a valve actuator to its operative position permitting a piston and fastener driving element of the tool to move through a fastener driving stroke, and movement of the trigger assembly to its actuated position prior to movement of the contact responsive assembly to its operative position prevents movement of the valve actuator to its operative position so that inadvertent movement of the contact responsive assembly will not actuate the fastener driving tool, and (2) a contact operating mode position whereby repeated movement of the contact responsive assembly to its operative position repeatedly moves the valve actuator to its operative position to move the piston and fastener driving element through successive fastener driving strokes only so long as the trigger assembly is in the actuated position. Release of the trigger assembly from the actuated position causes the control structure to move to its sequential operating mode position. The control structure is constructed and arranged to remain in its contact operating mode position only when the trigger assembly is in its actuated position.

REFERENCES:
patent: 3784077 (1974-01-01), Burke, Jr. et al.
patent: 4378084 (1983-03-01), Scala
patent: 4509668 (1985-04-01), Klaus et al.
patent: 4523646 (1985-06-01), Doyle et al.
patent: 4629106 (1986-12-01), Howard et al.
patent: 4716813 (1988-01-01), Prundencio
patent: 4830253 (1989-05-01), Hunter
patent: 5083694 (1992-01-01), Lemos

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