Photography – With exposure objective focusing means – focusing aid – or... – Mechanical mechanism for displacement of exposure objective
Reexamination Certificate
2006-09-05
2006-09-05
Perkey, W. B. (Department: 2851)
Photography
With exposure objective focusing means, focusing aid, or...
Mechanical mechanism for displacement of exposure objective
C396S089000, C396S133000
Reexamination Certificate
active
07103273
ABSTRACT:
A worm gear is provided on a rotating shaft of an AF motor. A first supporting cylinder includes a gear portion and a receiving portion. A wheel gear, which is in engagement with the worm gear, is formed on an outer surface of the gear portion. A slit is formed at the receiving portion. A second supporting cylinder includes a supported portion which is placed in the receiving portion of the first supporting cylinder, and a receiving portion which supports an AF coupler. A gear is in engagement with a portion which connects the supported portion and the receiving portion of the 2nd supporting cylinder. A clutch spring is wound around the supported portion, being in contact with the outer surface of the supported portion. Both ends of the clutch spring cross each other and are in engagement with a pair of walls, of the slit, which are parallel to an axis of the receiving portion.
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Hasegawa Takuya
Hosokawa Tetsuo
Itou Naoki
Greenblum & Bernstein P.L.C.
PENTAX Corporation
Perkey W. B.
Suthar Rishi
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