Short-stroke dome-shaped disc film spring

Details Short-stroke dome-shaped disc film spring Short-stroke dome-shaped disc film spring

1996-08-09

1998-02-24

Graham, Matthew C.

Spring devices

Bendable along flat surface

Snap spring

200 83R, F16F 118

Patent

active

057204721

ABSTRACT:
A short-stroke dome-shaped disc film spring comprising a dome-shaped portion and a skirt figure portion, wherein the cross section of the skirt figure portion rises in a line, the rise angel is inclined inward between 40 degrees and 60 degrees, the height of the skirt figure portion is between 0.2 mm and 0.4 mm, and the dome-shaped portion and the skirt figure portion are formed from a resin film of thickness 75 to 200 .mu.m. The dome-shaped film spring has a short stroke at which a feeling of a click is obtained.

REFERENCES:
patent: 2860208 (1958-11-01), Epstein
patent: 3873070 (1975-03-01), Wolf
patent: 4667069 (1987-05-01), Cholkeri

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