International Standard Electric Corporation

Nokia Unterhaltungselektronik

Kurt Leipold

Ulrich Kizak

Bernhard Puls

Hermann Gruber

Richard Schonberger

Max Huttereer

The invention specifies a calotte-type (encased) loudspeaker distinguished by very small dimensions. The pot magnet (12) is joined to a single-piece case component (11) exclusively by means of elastic snap catches (32) such that a terminal locking hook (35) forming an integral part of the said snap catches (32) engages with a collar (25) arranged on the pot magnet (12). After the case component (11) and the pot magnet (12) have been joined together, the membrane (21) is kept in position between the case component (11) and the pot magnet (12) exclusively by virtue of the fact that the part of the membrane (21) that bears against the pot magnet (12) is pressed against the said pot magnet (12) by the free end (29) of the piece of tubing (28) attached to the case component (11).

Calotte-type treble loudspeaker

The moving coil (voice coil) of the loudspeaker is so designed that the loudspeaker will become suitable for automatic production. For this purpose, the moving coil is positioned on a coilform, and as a connecting line extending to the ends of the moving coil there are used flexible ribbon conductors secured to a plastics carrier.

Loudspeaker

Growing community of inventors

Feldkirchen, Germany

Kurt Leipold