In-the-ear hearing aid
First Claim
1. An in-the-ear hearing aid to be inserted in the auditory canal, of the type having a face plate, a housing adjoining and tapering away from said face plate, a button cell having a sidewall, and a cover hinged to said housing, wherein the improvemnt comprises:
- said face plate including a central passage,said cover including a recess having a cylindrical inside wall in the side of said cover nearest said housing and an opening in the side of said cover remote from said housing,a pushbutton passing through said opening,a mounting plate disposed on the side of said face plate nearest said housing,a pressure switch disposed substantially in the middle of said central passage of said face plate on the side of said mounting plate nearest said face plate, andmeans for holding said button cell axially displaceable between said pressure switch and said pushbutton in such a way that pressure exerted upon said pushbutton causes said button cell to move toward and rest against said pressure switch, thereby actuating said pressure switch.
2 Assignments
0 Petitions
Accused Products
Abstract
A face plate includes a passage for receiving a button cell. Disposed on the back of the face plate is a mounting plate. Between the mounting plate and the face plate, the edge of a diaphragm is gripped, the center part of which bulges resiliently outward. By means of pressure on the center part of the diaphragm, a circuit is closed. A cover having a center opening is hinged to the face plate. Through the opening there extends a pushbutton which is rotatable within limits relative to the cover and axially displaceable. Resting against the inside of the pushbutton is an annular contact element which is rotatingly integral therewith and has a contact tongue connected via a crosspiece. By rotating the pushbutton, the contact tongue can be brought into contact with a contact member disposed in a groove in the cover for turning on the hearing aid. By pressing the pushbutton, the button cell is axially displaced inwardly against the return force of the outwardly bulging portion of the diaphragm, and the mentioned circuit is closed. The hearing aid thus has only a single, relatively large operating element by means of which it can be turned on and off, and the volume controlled.
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Citations
7 Claims
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1. An in-the-ear hearing aid to be inserted in the auditory canal, of the type having a face plate, a housing adjoining and tapering away from said face plate, a button cell having a sidewall, and a cover hinged to said housing, wherein the improvemnt comprises:
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said face plate including a central passage, said cover including a recess having a cylindrical inside wall in the side of said cover nearest said housing and an opening in the side of said cover remote from said housing, a pushbutton passing through said opening, a mounting plate disposed on the side of said face plate nearest said housing, a pressure switch disposed substantially in the middle of said central passage of said face plate on the side of said mounting plate nearest said face plate, and means for holding said button cell axially displaceable between said pressure switch and said pushbutton in such a way that pressure exerted upon said pushbutton causes said button cell to move toward and rest against said pressure switch, thereby actuating said pressure switch. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification