Ribbon type speaker and method of assembling magnetic circuit th

Details Ribbon type speaker and method of assembling magnetic circuit th Ribbon type speaker and method of assembling magnetic circuit th

1981-05-20

1984-07-24

Pitts, Harold I.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

179115R, 179181R, 179180, 181166, 181171, 181172, H01R 900

Patent

active

044619324

ABSTRACT:
An improved ribbon-type speaker having an independent magnetic circuit unit and vibration system assembly to thereby reduce second harmonic wave distortion and to provide a speaker which is easy to assemble and disassemble. The case of the magnetic circuit unit can be used as a jig in assembling the magnetic circuit thereby largely reducing the number of steps and the number of tools needed in assembly. The ribbon-type speaker further incorporates advantageously recess portions in a supporting frame of the vibration system assembly together with semicircular cut-out portions provided at both ends of long sides of the opening in the supporting frame. The rigidity of the vibrating plate is thus enhanced and the deformation and elongation of the damper member of the vibration system assembly is reduced.

REFERENCES:
patent: 2147137 (1939-02-01), Anderson
patent: 4276452 (1981-06-01), Suyama

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