Extendable pivot shaft mechanism, and an extendable pivot...

Details Extendable pivot shaft mechanism, and an extendable pivot... Extendable pivot shaft mechanism, and an extendable pivot...

2008-01-01

2008-01-01

Mahoney, Christopher (Department: 2851)

Photography

Camera support

Operator supported

C396S535000

Reexamination Certificate

active

11121074

ABSTRACT:
An extendable pivot shaft mechanism of a camera includes two concentric cylindrical members fixed to a camera body and a rotatable grip, respectively; an advancing/retreating lock control member supported by one of the concentric cylindrical members and linearly movable along a rotational axis without rotating relative thereto, the advancing/retreating lock control member being operated from outside the camera body or the grip; a rotation locking mechanism for changing a state of the advancing/retreating lock control member and the other of the two concentric cylindrical members between a rotation locked state and a rotation unlocked state in accordance with a linear movement of the advancing/retreating lock control member relative to the one of the concentric cylindrical members; and a lock biasing device for biasing the advancing/retreating lock control member in a rotation locking direction to cause the rotation locking mechanism to change to the rotation locked state.

REFERENCES:
patent: 5442453 (1995-08-01), Takagi et al.
patent: 5784206 (1998-07-01), Nomura et al.
patent: 2006/0051083 (2006-03-01), Yamamoto
patent: 2007/0053680 (2007-03-01), Fromm
patent: 2007/0140686 (2007-06-01), Misawa
U.S. Appl. No. 11/121,062 to Nakamura, filed May 4, 2005.
U.S. Appl. No. 11/121,095 to Nakamura et al., filed May 4, 2005.
U.S. Appl. No. 11/052,798 to Nakamura, filed Feb. 9, 2005.

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