Media feed arm with directional damping

Details Media feed arm with directional damping Media feed arm with directional damping

1997-03-17

1999-02-09

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separators

B65H 306

Patent

active

058683852

ABSTRACT:
Bracket (1) containing a gear train holds the end of spring (19) wound in a direction to be opened when the bracket moves up from the paper tray (7). Spring (19) is wound on an arbor (15) which is mounted on a shaft (9) which is located on the pivot axis of the bracket. Spring (17) is wound on a second part of the arbor in a direction to be closed when the bracket moves away from the tray. Spring (19) has a much tighter grip on the arbor than spring (17). In operation the bracket resists upward movement under the influence of stiff paper being fed, and is slowed in its downward movement to reduce bounce, which increases the speed at which a second sheet can be fed.

REFERENCES:
patent: 3507488 (1970-04-01), Yanagawa
patent: 4934686 (1990-06-01), Ono et al.
patent: 5085420 (1992-02-01), Sata
patent: 5265859 (1993-11-01), Watson et al.
patent: 5527026 (1996-06-01), Padget et al.
patent: 5624109 (1997-04-01), Tanaka
IBM Technical Disclosure Bulletin, Dec. 1981, vol. 24, No. 7B, pp. 3763-3764, System for Minimizing Solenoid Requirements.
IBM Technical Disclosure Bulletin, Sep. 1975, vol. 18, No. 4, pp. 955-956, Mechanical Picker Lift Mechanism.
IBM Technical Disclosure Bulletin, May, 1980, vol. 22, No. 12, pp. 5265-5266, Solinoid Rebound Damper.

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