| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a keyboard lid opening/closing device of a keyboard musical instrument which can adjust the closing speed of a keyboard lid to a proper speed that a user desires without replacing a shock absorber. <P>SOLUTION: The device has a link bar 6 and is equipped with a link mechanism 6 which has one end fixed to the keyboard lid 2, the shock absorber 5 which is fitted to a back lid 3 and has the link bar 9 fixed and brakes the keyboard lid 2 through the link mechanism 6 when the keyboard lid 2 rotates in the closing direction, and a fixing means which fixes the link bar 9 to the shock absorber 5 at an arbitrary lengthwise position. <P>COPYRIGHT: (C)2003,JPO</p> |
