Improvements relating to keyboards专利检索- 触觉反馈专利检索查询-专利查询网

Improvements relating to keyboards
申请号	EP83301417	申请日	1983-03-15	公开(公告)号	EP0090542A3	公开(公告)日	1985-11-06
申请人	LRE RELAYS & ELECTRONICS LIMITED;			发明人	Fuller, Maurice Donald; Joyce, David Brian;
摘要	A keyboard (30), particularly for control of electronics in vehicles, has at least one key (33) mounted in a recess in the keyboard (30) and pivotable about a pivot (51) to press against a shaped portion (67) of a rubber gasket (63) to operate an electrical switch (69). A display (80), preferably a multiple character LCD, for labelling the switch is visible through a transparent member (49) and connected to a p.c.b. by zebra striped members (81, 82). The display (80) ist not obscured by a finger operating the key (33). The key (33) has a transverse bore (54) 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 (51) and forming detent means to give the key (33) a tactile operation. Preferably the key (33) operates three switches (69) by way of three shaped portions (67).
权利要求
说明书全文