Mobile speaker system

Details Mobile speaker system Mobile speaker system

1989-04-25

1990-05-29

Fuller, Benjamin R.

Acoustics

Combined

181144, 181148, 181153, 181156, 181199, 381 86, H05K 500

Patent

active

049287877

ABSTRACT:
A mobile speaker system for mounting on a rear parcel tray attachment portion of a vehicle, the speaker system includes: a bottom casing elongated along a vehicle's width; an upper casing mounted over the elongated bottom casing so as to form a speaker cabinet, the bottom casing having a plurality of first ribs projecting in a first direction, and a plurality of second ribs projecting in a second direction which is substantially perpendicular to the first direction; and fixing metal fittings attached to at least one of the ribs so as to prevent transformation of the bottom casing. In one embodiment, the upper casing includes a recess portion at a central portion thereof, an opening portion formed in the recess portion for mounting a woofer unit, and two ducts for a bass-reflex type cabinet are formed at opposite sides of the opening portion.

REFERENCES:
patent: 4514599 (1985-04-01), Yanagishima et al.
patent: 4551849 (1985-11-01), Kasai et al.
patent: 4582162 (1986-04-01), Kutsuno

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