Keyboard instrument with keyboard cover mechanism

Details Keyboard instrument with keyboard cover mechanism Keyboard instrument with keyboard cover mechanism

1991-03-19

1992-12-29

Gellner, Michael L.

Music

Instruments

Stringed

84DIG17, 3122932, G10C 302

Patent

active

051753863

ABSTRACT:
A keyboard instrument includes an instrument main body, a keyboard cover, a link member, a guide abutment portion, and a guide member. The instrument main body has a keyboard portion arranged thereon. The keyboard cover pivots about a portion near a rear end thereof to open/cover the keyboard portion on the instrument main body. The link member has one end pivotally supported on the instrument main body, and the other end pivotally supported on a portion near the rear end portion of the keyboard cover. The guide abutment portion is arranged at a position separated from the position, at which the other end of the link member is pivotally supported, in a direction of a rear surface of the instrument main body by a predetermined distance. The guide member is fixed in the instrument main body so as to cause the guide abutment portion to be moved in contact with the guide member upon opening/closing of the keyboard cover.

REFERENCES:
patent: 545926 (1895-09-01), Waldecker
patent: 690125 (1901-12-01), Vollmar
patent: 1715280 (1929-05-01), Cheek
patent: 2178565 (1939-11-01), Day
patent: 2218949 (1940-10-01), Day
patent: 2481103 (1949-09-01), Fuller
patent: 4742749 (1988-05-01), Kira et al.

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