Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1997-08-11
2000-02-29
Gellner, Michael L.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200333, H01H 925
Patent
active
060311894
ABSTRACT:
Disclosed is a keyboard device wherein arm portions formed at an interval are provided at one end or at the other end of the first or second lever section and wherein a connecting section for connecting the end portions of these arm portions is provided at the end of these arm portions, this connecting section being engaged with the engagement section of the support member or the key top, whereby the strength of the end portions of the arm portions increases, and the deflection of the arm portions can be reduced, so that the inclination of the key top when it is depressed decreases, thereby providing a keyboard device having a satisfactory operability.
REFERENCES:
patent: 5280147 (1994-01-01), Mochizuki et al.
patent: 5799772 (1998-09-01), Sanda et al.
Narusawa Tsuyoshi
Watanabe Kazutoshi
Alps Electric Co. ,Ltd.
Gellner Michael L.
Nguyen Nhung
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