Single-pivot type focal-plane shutter drum mechanism

Details Single-pivot type focal-plane shutter drum mechanism Single-pivot type focal-plane shutter drum mechanism

1980-05-02

1981-11-03

Adams, Russell E.

354244, G03B 932

Patent

active

042982642

ABSTRACT:
A single-pivot type focal-plane shutter mechanism having a reduced size and correspondingly increased angle of rotation of the top and bottom curtain drums. The top and bottom curtain drums are provided with protrusions extending in opposite directions. An engaging ring is disposed between the top and bottom curtain drums rotatably mounted on the same shaft. The engaging ring has protrusions extending from opposite sides thereof which engage, upon rotation of the drums, with the protrusions on the top and bottom curtain drums. With this structure, the top and bottom curtain drums can rotate through angles of approximately 600.degree..

REFERENCES:
patent: 3657982 (1972-04-01), Uno et al.
patent: 3687044 (1972-08-01), Watanabe
patent: 3688674 (1972-09-01), Kuramoto et al.
patent: 3688675 (1972-09-01), Yamashita et al.
patent: 3713373 (1973-01-01), Sato
patent: 4053913 (1977-10-01), Sato
patent: 4153360 (1979-05-01), Kodaira et al.
patent: 4215925 (1980-08-01), Date et al.

Affiliated with

Also associated with

Rating

Single-pivot type focal-plane shutter drum mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Single-pivot type focal-plane shutter drum mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-pivot type focal-plane shutter drum mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1062055