Sewing – Elements – Guards
Patent
1983-05-16
1985-04-09
Schroeder, Werner H.
Sewing
Elements
Guards
181287, D05B 7700
Patent
active
045094420
ABSTRACT:
An acoustical shield assembly for an industrial sewing machine includes a plurality of shield components readily movable from operating sound attenuating positions to open positions permitting easy access to a sewing machine. The assembly preferably includes front and face shields pivotally mounted in overlapping relationship. A lower side shield is positionable beneath a sewing plate of a sewing machine and movable to an overlapping relationship with the front shield. A tubular shield is pivotally mounted above and to the rear of the sewing plate. Acoustical material is mounted in top of the tubular shield to dissipate machine generated noise. The assembly may also include a rear shield for partially enclosing the rear and one side of the sewing machine. The rear shield preferably has a top face cooperating in spaced relationship with a top face of the front shield, but defining an opening for passage of thread and the dissipation of heat. Selective shield components have multilayer acoustical coverings on their internal surfaces to absorb the sound energy.
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Hoover, R. M. et al, "Double Wall Noise Control Enclosure for an Impulsive Sound Source", Noise Control, vol. 7, No. 5, pp. 12-17.
Falik Andrew M.
Marvel Specialty Company
Schroeder Werner H.
LandOfFree
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