| 摘要 |
PURPOSE: To provide a key touch detector of a keyboard musical instrument which is adjustable in height from a lower side with a simple structure and is settable at the low height over the entire part of the detector. CONSTITUTION: This key touch detector 1 of the keyboard musical instrument which is disposed between a key frame cross rail 2 and a keyboard 3 and detects the key touch state of the keyboard 3 is provided with a sensor 4 which detects the presence or absence of the descending of the keyboard 3 according to key touch, a base plate 6 which is attached with the sensor 4 on its upper surface, stays 7 which hold the base plate 6, a base plate 10 which is fixed to the upper surface of the key frame cross rail 2 and adjusting screws 8 which are freely rotatably attached to the base plate 10 and are screwed into thread holes 11 of stays 7. The adjusting screws 8 are disposed upside down in such a manner that the rotating operation thereof is made possible from the lower side. The thread holes 11 are disposed in the positions higher than the base plate 6. |
