Sewing machine noise and vibration reduction

Details Sewing machine noise and vibration reduction Sewing machine noise and vibration reduction

1974-04-25

1976-05-25

Scott, Samuel

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

308233, 3081871, F16H 2512

Patent

active

039584607

ABSTRACT:
Noise and vibration are reduced in an axial cam drive mechanism by spring loading the rotary cam assembly to one end of its limit of axial travel. The spring load is applied through an antifriction axial thrust bearing, and is reacted by a second antifriction axial thrust bearing. The spring load applied exceeds the axial component of the maximum reaction load applied by the cam driven mechanism during operation so that there is no tendency of the rotary cam assembly to shift axially upon reversal of the reaction load.

REFERENCES:
patent: 1766224 (1930-06-01), Montevaldo
patent: 2351890 (1944-06-01), Turner
patent: 2673768 (1954-03-01), Douglas
patent: 3332536 (1967-07-01), Ebly et al.
patent: 3345115 (1967-10-01), Olender et al.
patent: 3433543 (1969-03-01), Eck
patent: 3572862 (1971-03-01), Teramachi
patent: 3682005 (1972-08-01), Frantz

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