Isolation mount for an optical encoder

Details Isolation mount for an optical encoder Isolation mount for an optical encoder

1984-10-01

1987-03-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

G01D 534

Patent

active

046477705

ABSTRACT:
In accordance with the present invention, a drum (10) has a central shaft (11) which is rotatably mounted to a drum supporting frame (12). A mount (26) pivotally connects one side (30) of the frame (12) to a cabinet (14) for pivoting about a frame pivot (73). A mount (15) rigidly secures the other frame side (32) to the base (14). An isolation mounting bracket (86) supports an optical encoder (84) in position to monitor the velocity of the shaft (11). Bracket (86) has pivots (98, 100) which cooperate with the frame pivot (73) to provide in effect a parallelogram support structure for the optical encoder (84). Thus, the encoder (84) may translate, but not rotate, in response to vibrations of the frame (12) so as to minimize or eliminate erroneous encoder velocity readings otherwise arising from such vibrations.

REFERENCES:
patent: 4182953 (1980-01-01), Hurley et al.
patent: 4363026 (1982-12-01), Salmon
patent: 4501963 (1985-02-01), Perisic

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