Browse Prior Art Database

Membrane Switch Activator

IP.com Disclosure Number: IPCOM000061944D
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Trommer, RH: AUTHOR [+2]

Abstract

A membrane switch is activated by a polyester snap spring that provides both tactile feel and audible feedback through a polycarbonate layer that may function as a key button for activating the membrane switch through the polyester snap spring.

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Membrane Switch Activator

A membrane switch is activated by a polyester snap spring that provides both tactile feel and audible feedback through a polycarbonate layer that may function as a key button for activating the membrane switch through the polyester snap spring.

A membrane switch 1, which includes a contact 2 on its upper layer 3 and a contact 4 on its bottom layer 5, has a polyester snap spring 6 mounted on top of the upper layer 3.

The polyester snap spring 6 has a formed circular dome 7 for engagement by a polycarbonate layer 8. Depression of the polycarbonate layer 8 causes engagement with the dome 7 of the spring 6 to move the spring 6 downwardly so that the contact 2 on the upper layer 3 is moved into engagement with the contact 4 on the bottom layer 5.

Depression of the polycarbonate layer 8 and the polyester snap spring 6 results in an audible noise when the contacts 2 and 4 engage. The polycarbonate layer 8 also provides a tactile feel to the operator.

Disclosed anonymously.

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