Drive coupling device for optical instruments

Details Drive coupling device for optical instruments Drive coupling device for optical instruments

1985-08-20

1987-12-08

Punter, William H.

192 clutches and power-stop control

Elements

Wear compensators

192 67R, 403300, G02B 700, F16D 110, F16D 112

Patent

active

047115289

ABSTRACT:
A drive coupling device for transmitting a rotational drive force from an optical instrument such as a camera body to another optical instrument such as an exchangeable lens has a construction which couples driving and driven coupling members steadily while centerizing the center axes of the driving and driven coupling members for efficient drive force transmission. A flat male engaging portion having a top surface and parallel side walls is formed on the driving coupling member while a slotted female engaging portion having a concave bottom wall and parallel side walls is formed on the driven coupling member. With the optical instruments connected to each other, the male engaging portion is brought into engagement with the female engaging portion under a force of a spring.

REFERENCES:
patent: 1012657 (1911-12-01), Kurschus
patent: 1241713 (1917-10-01), Dahlqvist
patent: 3212613 (1965-10-01), Carlson
patent: 4252224 (1981-02-01), F'Geppert
patent: 4449807 (1984-05-01), Miki et al.
patent: 4564265 (1986-01-01), Miki

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