1995-10-31
1996-07-30
Gray, David M.
354242, G03B 910, G03B 932
Patent
active
055416942
ABSTRACT:
A caulking pin joint for use with a light shielding blade in a shutter or aperture mechanism of a camera. The caulking pin has a disc-shaped head, a circular protrusion depending therefrom, and a hollow-circular segment depending from the circular protrusion. The actuation arm of the shutter or aperture rests on the head, while the light shielding blade rests on the circular protrusion. The hollow circular section is then spread outward so as to rotatably secure the actuator arm to the light shielding blade. The interior surface of the hollow circular section is chamfered such that when it is folded over on top of the light shielding blade, it presents only a small smooth protuberance from the light shielding blade. This allows a second light shielding blade to be positioned close to the first light shielding blade without fear of collisions or interference between the blades. The circular protrusion upon which the light shielding blade rests, may be provided with a surface inclined up to and including 15.degree. for receiving the light shielding blade. A punch and dye is used to deform both the hollow section and the periphery of the insertion hole in the light shielding blade.
REFERENCES:
patent: 4956139 (1990-09-01), Koizumi et al.
patent: 4962202 (1990-10-01), Fukuda et al.
patent: 4965617 (1990-10-01), Matsubara
patent: 5025278 (1991-06-01), Matsubara
Hasuda Masanori
Matsubara Takashi
Ohshima Hiroyuki
Gray David M.
Nikon Corporation
Tuccillo Nicholas J.
LandOfFree
Light shielding blade caulking pin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light shielding blade caulking pin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light shielding blade caulking pin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1663778