发明授权
US3911234A Keyboard type switch assembly having fixed and movable contacts disposed on foldable flexible printed circuit board 失效
键盘式开关组件,其具有设置在可折叠柔性印刷电路板上的固定和可移动触点

Keyboard type switch assembly having fixed and movable contacts disposed on foldable flexible printed circuit board
摘要:
A switch is formed from a flexible printed circuit folded about an apertured spacer so that contacts on the circuit face through the aperture and are engageable by flexure of the circuit. Suitably the spacer is of elastomer and is multi-apertured to provide a multiple or keyboard switch. The flexible circuit lamina may be provided with a logic device and visual display mounted directly on the lamina for use as an electronic logic device of simplified construction.
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