Patent Number: 6,254,289

Title: Lens cover apparatus for camera

Abstract: A pivot of a lens cover provided between a camera body and a casing is arranged in a space enclosed by a film cartridge chamber, a fixed cylinder of a lens barrel and a finder in the camera body. The front of the film cartridge chamber is thus utilized as a recessed space for the lens cover. Projecting parts are formed on the peripheral surface of the fixed cylinder, and chips are formed at the inner circumference of a drive ring, which is rotatably arranged on the peripheral surface of the fixed cylinder and transmits a rotational force of the motor to the lens cover. The drive ring is mounted on the fixed cylinder with the chips being joined with the projecting parts, and is rotated by a predetermined amount so that the projecting parts can prevent the drive ring from coming off. This eliminates the necessity of adding a member for preventing the drive ring from coming off. A power transmission mechanism in the lens cover driving mechanism is arranged in a conventionally-unused recession between the fixed cylinder and the film cartridge chamber. A cam member for moving the movable lens holding frames of the zoom finder is connected to the lens cover. The lens cover is opened and closed by a driving force of the cam member. This eliminates the necessity of providing a special mechanism for driving the lens cover. One motor drives the lens cover and the movable lens holding frames of the zoom finder.

Inventors: Manabe; Mitsuo (Omiya, JP), Nagata; Kazuaki (Omiya, JP), Kobayashi; Hideo (Omiya, JP)

Assignee: Fuji Photo Optical Co., Ltd.

International Classification: G03B 17/00 (20060101); G03B 017/00 ()

Expiration Date: 07/03/2018