Camera having a focal plane shutter

• US 4,819,017 A
• Filed: 01/21/1988
• Issued: 04/04/1989
• Est. Priority Date: 01/21/1987
• Status: Expired due to Term

• Current Assignee: Seiko Precision Incorporated (Seiko Group)
• Original Assignee: Seikosha Co., Ltd.
• Inventors: Misawa, Atsushi, Aosaki, Ko, Nemoto, Ichiro, Otora, Takahito
• Primary Examiner(s): Gellner, Michael L.
• Application Number:
  US07/146,331
• Time in Patent Office: 439 Days
• Field of Search: 354/250, 354/261, 354/288
• US Class Current: 396/535
• CPC Class Codes: G03B 17/02 Bodies
• CPC Class Codes: G03B 9/18 More than two members

Abstract

A camera having a focal plane shutter comprising two sets of blades which are movable to form a slit which opens a shutter aperture includes a body formed from a plastic material. A rail plate having a plurality of film guide rails is attached to the camera body. A plurality of drive shafts are provided on the camera body or the rail plate for supporting at least the blades. The camera body and the rail plate define therebetween a space in which the blades are housed.

Claims

1. In a camera having a focal plane shutter comprising two sets of blades which are movable to form a slit which opens a shutter aperture, the improvement which comprises:

a camera body formed from a plastic material;

a rail plate attached to said body and having a plurality of film guide rails; and

a plurality of drive shafts provided for supporting at least said blades;

said body and said rail plate defining therebetween a space in which said blades are housed.

2. A camera as set forth in claim 1, wherein said shafts are provided on said body.

3. A camera as set forth in claim 2, further including a shutter operating mechanism supported on said shafts, said blades being rotatably supported between said body and said rail plate.

4. A camera as set forth in claim 1, wherein said shafts are provided on said rail plate.