Keyboard apparatus

Details Keyboard apparatus Keyboard apparatus

1999-05-18

2000-10-31

Hilten, John S.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-board including row of keys having different heights

4004951, 200341, B41J 514

Patent

active

061392073

ABSTRACT:
A key base side pivot point on one side of a pantograph is supported on a key base and a key top height adjusting mechanism that has a holder that supports the other key base side pivot point and a reciprocating link that links swingably to this holder is also supported thereon, the holder of this key top height adjusting mechanism being caused to swing by a reciprocating movement of the reciprocating link.

REFERENCES:
patent: 5695047 (1997-12-01), Tanahashi
patent: 5735390 (1998-04-01), Takagi et al.
patent: 5767464 (1998-06-01), Dyer et al.
patent: 5793605 (1998-08-01), Sellers
patent: 5874696 (1999-02-01), Hayashi et al.

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