Speaker grill including stress regions

Details Speaker grill including stress regions Speaker grill including stress regions

1978-01-06

1980-04-08

Tomsky, Stephen J.

Acoustics

Diaphragm and enclosure

Reflector baffle

181149, 181171, 181175, H05K 500, G10K 1100

Patent

active

041967917

ABSTRACT:
The speaker grill is a part of a molded plastic member which may form a wall of housing for a device which includes an audio transducer. The plastic member includes provisions for supporting the audio transducer adjacent the grill, which has openings for the transmission of sound. The grill has stress regions in which there are no openings, which are in tension when the grill is flexed to thereby increase the strength of the grill. The stress regions may extend across the grill in an "X" pattern, or in any other pattern wherein one of a plurality of such regions extends transversely with respect to another region. The openings for sound transmission may be slots extending from the sides of grooves, which form labyrinth openings so that there is no direct passage through the grill, thereby tending to prevent entry of undesired objects.

REFERENCES:
patent: 3108654 (1963-10-01), Hammes
patent: 3716671 (1973-02-01), Karr
patent: 3731760 (1973-05-01), Hammes
patent: 3909530 (1975-09-01), Gosswiller
patent: 3938618 (1976-02-01), Ambruoso, Sr.
patent: 3989909 (1976-11-01), Hodsdon et al.

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