Keyboard lid, its open-close structure and arm members for keyed

Details Keyboard lid, its open-close structure and arm members for keyed Keyboard lid, its open-close structure and arm members for keyed

1994-12-09

1996-01-30

Spyrou, Cassandra C.

Music

Instruments

General features

84179, 312312, G01C 312, G01C 302, A47B 5100

Patent

active

054873215

ABSTRACT:
An apparatus for slidingly opening and closing a keyboard lid for covering a keyboard of a keyed instrument between an open position and a close is provided. The keyboard lid has a front end with a pair of opposite sides and a rear end with a pair of opposite sides. A pair of front guide projections project laterally from the opposite sides of the front end of the keyboard lid. A pair of rear guide projections project laterally from the opposite sides of the rear end of the keyboard lid. A pair of side plates are arranged on opposite sides of the keyboard. Each one of the pair of side plates has a front guide groove engaging with a respective one of the pair of front guide projections and a rear guide groove engaging with a respective one of the pair of rear guide projections. In this manner, the keyboard lid is slidably guided between an open position and a close position.

REFERENCES:
patent: 602808 (1898-04-01), Kracht
patent: 2113045 (1938-04-01), Evans

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