Motor driven screwdriver

Details Motor driven screwdriver Motor driven screwdriver

1996-08-23

1997-07-22

Chilcot, Richard

Measuring and testing

Dynamometers

Responsive to torque

73862191, 73862321, 81 5731, 81467, B25B 2300

Patent

active

056505736

ABSTRACT:
A motor driven screwdriver has a drive train including a driving shaft, a driven shaft, and a planetary transmission arranged between the shafts, a measuring value transducer located in the drive train for determining a torque transmitted in the drive train, the measuring value transducer having a torsion shaft which transmits the drive torque, the torsion shaft being formed as a part of the driven shaft, and the driven shaft having an end which faces the planetary transmission and carries planetary gears of the planetary transmission.

REFERENCES:
patent: 2756622 (1956-07-01), LaBelle
patent: 3589489 (1971-06-01), Fehlings
patent: 3803952 (1974-04-01), Whale, Jr.
patent: 3934629 (1976-01-01), Boman
patent: 4333220 (1982-06-01), Aspers
patent: 4366871 (1983-01-01), Dieterle et al.

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