发明名称 |
PIVOTABLE KEY KEYBOARD WITH BIASED DETENTS |
摘要 |
<p>INVENTION OF Morris Donald FULLER and David Brian JOYCE TITLE OF THE INVENTION IMPROVEMENTS RELATING TO KEYBOARDS A keyboard, particularly for control of electronics in vehicles, has at least one key mounted in a recess in the keyboard and pivotable about a pivot to press against a shaped portion of a rubber gasket to operate an electrical switch. A display, preferably a multiple character LCD, for labellingthe switch is visible through a transparent member and connected to a p.c.b. by zebra striped members. The display is not obscured by a finger operating the key. The key has a transverse bore in which a compression spring is mounted with balls at the end of the spring to co-operate with stepped generally cylindrical members mounted with their axes perpendicular to the pivot pin and forming detent means to give the key a tactile operation. Preferably the key operates three switches by way of three shaped portions.</p> |
申请公布号 |
CA1218726(A) |
申请公布日期 |
1987.03.03 |
申请号 |
CA19830424333 |
申请日期 |
1983.03.24 |
申请人 |
LRE RELAYS & ELECTRONICS LIMITED |
发明人 |
FULLER, MAURICE D.;JOYCE, DAVID B. |
分类号 |
H01H13/70;H01H13/785;H01H13/807;H01H21/22;(IPC1-7):H01H13/70 |
主分类号 |
H01H13/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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