Keypad and method of manufacture

Details Keypad and method of manufacture Keypad and method of manufacture

H - Electricity

04

M

H04M 1/23 (2006.01) B29C 45/14 (2006.01) B29C 45/16 (2006.01) G06F 3/02 (2006.01) H01H 13/70 (2006.01)

Patent

CA 2056828

A keypad is comprised of a supporting frame, a plurality of snap action domes, and a plurality of pushbuttons each overlying a dome, all of the above being integrated and formed of a single piece of elastomeric material, the pushbuttons each being surrounded by a thin piece of the material buttressing the pushbutton upwardly, each of the thin pieces of material and an associated portion of the pushbutton forming a dome. The thin pieces of material extend from and are continuous with the frame. Each conducting button is disposed below a corresponding dome and is located such that when a pushbutton is pushed downwardly, its associated dome collapses, moving an associated button downwardly.

L'invention est un clavier constitué d'un cadre de support, d'une pluralité de dômes à pression et d'une pluralité de boutons-poussoirs superposés chacun à un dôme, tous ces éléments étant intégrés et formés d'une seule pièce de matériau élastomérique, chacun des boutons poussoir étant entouré d'une pièce mince du matériau qui le repousse vers le haut, chacune des pièces minces de matériau et une partie associée du bouton-poussoir formant un dôme. Les pièces minces du matériau s'étendent de façon continue à partir du cadre. Chaque bouton conducteur est monté sous un dôme correspondant et est placé de telle façon que, quand un bouton-poussoir est enfoncé, le dôme connexe s'affaisse et pousse le bouton associé vers le bas.

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