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Speaker-enclosure

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Speaker enclosure

Details

Inventors: Forbes, Lonnie R.;
Assignee: Fort Enterprises, Limited (Albuquerque, NM)
Primary Examiner: Tomsky; Stephen J.
Assistant Examiner:
Attorney, Agent or Firm: Babcock; William C.

An acoustic speaker enclosure of sufficiently thin design that it may be suspended from a wall and then concealed by a framed picture being hung thereover. Forwardly directed sound from the speaker radiates transversely through 360.degree. through a first passage defined in the enclosure. Rearwardly directed sound from the speaker is transmitted to the resonator frame through a second free transverse passage as well as a baffled third passage. A rearwardly disposed resonance board of the speaker enclosure is in abutting contact with the wall, and rearwardly sound from the enclosure is transmitted through this resonance board to the wall to resonate the latter to radiate sound to the room in which the speaker enclosure is disposed. Due to the multiplicity of sources of sound from the acoustic disclosure, a hearer in a room is not cognisant of the location thereof, particularly when the enclosure is concealed by a framed picture. The speaker enclosure if desired may be modified to provide a desk or table supported unit.

DETAILED DESCRIPTION The acoustic loud speaker enclosure in a preferred form is sufficiently thin as to be suspended in abutting contact with a wall and concealed behind a framed picture hung from the wall.
The enclosure includes a multi-sided resonator frame that has marginal side portions of forwardly and rearwardly disposed resonance boards secured to the peripheral edge surfaces thereof, and the frame and forward and rearward resonance boards cooperating to define an enclosed volume.
The forward resonance board has a centered first aperture that is sized for mounting a large end of an acoustic speaker therein.
Groups of spaced first and second blocks are rigidly secured to the forward and rearward surfaces of the forward resonance board, with the first blocks supporting a coverboard forwardly of the forward resonance board, and the second blocks supporting a baffle sheet intermediately between the forward and rearward resonance boards.
The baffle sheet has a second aperture therein through which the magnet end of the acoustic speaker extends.
The magnet end and second aperture cooperate to define an annulus space.
A number of spaced first and second elongate baffles are rigidly secured to the adjacent surfaces of the baffle and second resonance board.
Forwardly directed sound from the acoustic speaker travels transversely in all directions through a first passage defined between the coverboard and first resonance board.
Rearwardly directed sound from the acoustic speaker travels freely through a second transverse passage formed between the first resonance board and baffle to the resonator frame.
Also, rearwardly directed sound from the acoustic speaker also travels transversely through a labyrinth to the resonator frame.
The labyrinth is defined by the spaced baffles, the rearward surface of the baffle sheet, and the forward surface of the rearward resonance board.
Rearwardly directed sound also is transmitted to the wall through the rearward resonance board, with the wall resonating as a result thereof

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