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KNOB WITHOUT ACCIDENTAL MOMENTARY CONTACT DURING SWITCH SLIDING ACTUATION

IP.com Disclosure Number: IPCOM000006003D
Original Publication Date: 1990-Oct-01
Included in the Prior Art Database: 2001-Nov-23
Document File: 1 page(s) / 59K

Publishing Venue

Motorola

Related People

Tuan K. Nguyen: AUTHOR [+2]

Abstract

This idea can be applied to both current art multiple slide switches that have a momentary contact function incor- porated, or to switch knob covers that are used as environmental protection to the switch component. This design idea is used to prevent any accidental momentary contact function while sliding the switch knob (or switch knob cover) from a current position the next desired position. For this example we will use the switch knob to illustrated the functionality of this design. A mechanical key feature is incorporated on the stem of the switch knob. This key feature may have many embodiments, but for this example we will use a solid cube.

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MOlOROLA Technical Developments Volume 11 October 1990

KNOB WITHOUT ACCIDENTAL MOMENTARY CONTACT DURING SWITCH SLIDING ACTUATION

by Tuan K. Nguyen and Tom Rollins

   This idea can be applied to both current art multiple slide switches that have a momentary contact function incor- porated, or to switch knob covers that are used as environmental protection to the switch component. This design idea is used to prevent any accidental momentary contact function while sliding the switch knob (or switch knob cover) from a current position the next desired position. For this example we will use the switch knob to illustrated the functionality of this design. A mechanical key feature is incorporated on the stem of the switch knob. This key feature may have many embodiments, but for this example we will use a solid cube.

   The pager housing still has the opening for the knob to protrude out of, but an additional wall is placed behind it with the negative shapes of the key. The number of negative spaces is equal to the number of positions, limited by the switch component. The distance between the spaces is equal to the distance between the slide switch positions. When a slide switch is at a position the knob will be allowed to perform the momentary contact function because at that position there is a corresponding negative key space. When the slide switch is being moved, the knob key is not aligned with the negative key space, therefore with a solid wall behind the knob key t...