Automatic screwdriver

Details Automatic screwdriver Automatic screwdriver

1985-01-02

1986-12-09

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5737, 81435, 227117, B25B 2306

Patent

active

046273166

ABSTRACT:
An automatic screwdriver for driving a screw in a horizontal direction comprises a chute for supplying screws with their shanks hanging down, a gate for allowing the screws to be discharged one at a time out of the chute, an index mechanism for carrying a screw discharged from the chute along an angular interval to a catcher disposed in front of a screwdriver bit unit. The index mechanism has a carrier arm angularly movable between a first position in which it receives the screw from the chute and a second position in which the screw is transferred from carrier arm onto the catcher. The screwdriver bit unit comprises a suction pipe for drawing the screw therein from the catcher and a screwdriver bit rotatably disposed in the suction pipe and axially movable for driving the screw into a workpiece. The automatic screwdriver is driven by a pneumatic control system for actuating the gate, the index mechanism, and the screwdriver bit unit.

REFERENCES:
patent: 2544165 (1951-03-01), Krasnow
patent: 3438411 (1969-04-01), Rech
patent: 3583451 (1971-06-01), Dixon et al.
patent: 4392300 (1983-07-01), Billman et al.

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