Keyboard device
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United States of America Patent
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-
Sep 23, 2014
Grant Date -
Nov 21, 2013
app pub date -
May 14, 2013
filing date -
May 17, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A keyboard device of the present invention includes a front guide shaft that is provided on the front portion of a front lid and projects toward sides of the front lid, a rear guide shaft that is provided on the front portion of a rear lid and projects toward sides of the rear lid, and a guide groove that guides the front guide shaft and the rear guide shaft in the front and back directions of a musical instrument case. The guide groove is provided with a guide recess where the rear guide shaft comes in so that the front lid and the rear lid are placed on the same plane when a keyboard lid is closed and covers a keyboard section.
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