One-way rotational transfer mechanism, and a lens barrel...

Details One-way rotational transfer mechanism, and a lens barrel... One-way rotational transfer mechanism, and a lens barrel...

2006-09-05

2006-09-05

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

With support

C192S038000, C192S044000, C359S703000, C396S144000

Reexamination Certificate

active

07102837

ABSTRACT:
A one-way rotational transfer mechanism includes a rotary input shaft, a rotary output shaft, a clutch member, a differential rotating member, a circumferentially-uneven-width-space forming portion formed on the rotary input shaft, a torque transfer member, and an associating device. The torque transfer member wedges between the circumferentially-uneven-width-space forming portion and the clutch member while making the torque transfer member contact the clutch so that the rotary input shaft and the clutch member become integral upon rotation of the rotary input shaft. The associating device causes the clutch member to transfer torque thereof to the rotary output shaft, and the clutch member to release engagement of the rotary input shaft with the clutch member when the rotary output shaft is rotated so that a relative rotational torque greater than a predetermined torque determined by a shape of the associating device.

REFERENCES:
patent: 5052781 (1991-10-01), Iizuka
patent: 5701208 (1997-12-01), Sato et al.
patent: 5915514 (1999-06-01), Nojiri et al.
patent: 6827190 (2004-12-01), Hamasaki
patent: 2-253210 (1990-10-01), None
patent: 02-253214 (1990-10-01), None
patent: 08-177878 (1996-07-01), None
patent: 11-023939 (1999-01-01), None
patent: 11-202181 (1999-07-01), None
U.S. Appl. No. 10/958,219, filed Oct. 5, 2004.
U.S. Appl. No. 10/971,118, filed Oct. 25, 2004.

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