Stepping mechanism

Details Stepping mechanism Stepping mechanism

1976-10-15

1977-12-20

Schaefer, Robert K.

58 5, 58 7, G04B 1924

Patent

active

040634116

ABSTRACT:
A stepping gear is rotatably mounted with freedom of axial movement and formed with an axially facing shoulder and with teeth and tooth spaces defined by said teeth. A rotatably mounted pawl roller has first and second peripheral rings. A spring urges said pawl roller against said stepping gear. The first peripheral ring is adapted to enter one of said tooth spaces to oppose a rotation of said stepping gear. The second peripheral ring radially overlaps said shoulder to limit the freedom of axial movement of said stepping gear.

REFERENCES:
patent: 3703805 (1972-11-01), Gantier et al.
patent: 3871171 (1975-03-01), Charbonnet
patent: 3878674 (1975-04-01), Muerrle
patent: 3879929 (1975-04-01), Charbonnet

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