| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard device which is capable of improving the assembling characteristic of a supporting member and a mass body drive body and the mass body. SOLUTION: A part H to be fitted is formed by screwing a shouldered screw 60 with a washer to a keybed 2 and a fitting part K is composed of a collar part 27 extending forward from the lower part of the front wall part of the supporting member 20. The supporting member 20 is slid forward and the fitting part K is fitted to the part H to be fitted by putting the collar part 27 between the washer 60d and a head lower part 60aa and thereafter a fixing part M is fixed by a screw 61. On the other hand, the supporting member 20 mounted with the mass body 40 is assembled to the keybed 2 and when a key 1 is successively moved backward by placing the key 1 on a fulcrum pin 6 and applying a rear end upper part 1b to an under surface front part 46c of the mass body 40, the rear end upper part 1b progresses along the under surface 46a from an under surface front part 46c and the rear end upper part 1b is guided so as to sneak under the head 41a without being hooked by an adjusting screw 41. Shortly, the fulcrum pin 6W penetrates the fulcrum hole 1Wa of the key 1 and shifts naturally itself to a non-key touch state. |
