Automatic impact driver

Details Automatic impact driver Automatic impact driver

1989-05-22

1990-04-24

Yost, Frank T.

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

173119, 173124, B25B 2102

Patent

active

049192167

ABSTRACT:
An automatic impact driver for applying a large torque to a tip chuck by only pressing down a casing so as to remove corroded screws etc. A cylindrical slider freely movable in an axial direction is disposed in the casing, a cam mechanism is installed in between the slider and the chuck, and the chuck is turned by applying an impact force on a plunger through the slider. Since the impact driver is constructed as described above, a loss of impact transmitting force is decreased as compared with a conventional structure in which the slider is directly struck by the casing.

REFERENCES:
patent: 2960864 (1960-11-01), Watts
patent: 3054312 (1962-09-01), Zengerer
patent: 3135147 (1964-06-01), Curtis et al.
patent: 3177952 (1965-04-01), West

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