| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a keyboard device which prevents the disengagement of a key fulcrum member from a chassis without using the parts to be exclusively used. SOLUTION: The mounting of a bearing 16 for supporting a key fulcrum 15 at the chassis 11 is executed by inserting the L-shaped leg 18 of the bearing 16 into an insertion part 17, then holding the peripheral portion of the insertion port 17 between the L-shaped leg 18 and the lower surface of the bearing 16 and fastening a screw 8 into the threaded hole 9 of the chassis 11 through an oblong hole 61a formed in a flange part 6 in the state of press-contacting the flange part 61 of a center rail 60 to the rear end of the L-shaped leg 18, thereby fixing the bearing 16 in an unslidable state to the chassis 11. The removing of the keyboard 14 is carried out by first loosening the screw 8, sliding the center rail 60 backward along the oblong hole 61a, moving the bearing 16 backward in the insertion port 17 and releasing the holding of the peripheral part of the insertion port 17 by the L-shaped leg 18, then pulling the bearing upward.</p> |
