发明名称 |
DEVICE FOR OPENING AND CLOSING OF KEYBOARD MUSICAL INSTRUMENT COVER |
摘要 |
<p>PURPOSE:To put a cover on or off without using tools by installing a protruding guide in parallel with the rack on a shaft guide peak part and by fitting an approximately L shaped slider with a pinion axis so that the slider freely slides. CONSTITUTION:A pinion axis 6 is held by plural number of bearings 10a which are installed in the back portion of a cover 4 itself and the axis is freely rotatable. Then, a slider 14 is energized at the left and the right end of the pinion axis 6 by a spring 13 so that the slider is pushed against a pinion 5. The pinion 5 is then mounted on the pinion axis 6 by screws. The guide 8a formed on the cover peak part 7 and the fitting section 14a of the slider 14 which is mounted on the pinion axis 6 are fitted or removed by a sliding action. Thus, the cover is incorporated or removed without using tools.</p> |
申请公布号 |
JPH04194991(A) |
申请公布日期 |
1992.07.14 |
申请号 |
JP19900328646 |
申请日期 |
1990.11.27 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
YAMAMURA HIROFUMI;KANEYOSHI MASAZUMI |
分类号 |
G10B3/00;G10C3/12 |
主分类号 |
G10B3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|