Alphanumeric keyboard
AssigneeSiemans Nixdorf Informationssysteme AG
InventorsGunter Baitz, Joachim Burchart
Life of this patent
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Abstract
An alphanumeric keyboard comprises a plurality of key operated switches and a cover frame which covers the switches and has bosses for receiving switch operating rams carried by key buttons having projections which receive the rams and which fit into the bosses. At least one compound key of the keyboard is associated with at least two switches and includes a compound key head which overlies at least two bosses. At least one of the rams of this compound key is so mounted on the compound key head that it can be adjusted relative to the compound key head parallel to the keying direction.
Claims11
An alphanumeric keyboard including a plurality of switches (14,16) operable by keys and a cover frame (22) overlying the switches (14,16) with guide bosses (24) for key rams (26) carried by a key head (28) overlying the guide bosses (24), each of said guide bosses having a generally vertically extending bore, and means restricting said key head to translational movement relative to said cover frame in a keying direction extending parallel to the bores of said guide bosses characterized in that at least one compound key is associated with at least two switches (14,16) and has a compound key head (28) overlying at least two guide bosses, and that at least one of the rams (26) carried by said compound key head (28) is supported on said compound key head (28) for adjustment relative to said compound key head parallel to said keying direction.
Dependencies are inferred from the claim text.