| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard device by which a key touch close to that of a grand piano can be obtained without making the moment of inertia of a hammer large. SOLUTION: This keyboard device equipped with a hammer 7 which swings in cooperation with a key 1 of an electronic piano and gives a force of inertia to a swing of the key 1 is provided with an elastic deformation part 9 which increases in deformation as the strength of key touching increases at the contact part 8 between the hammer and key. The elastic deformation part is made of elastic resin 9a provided to the hammer, or the hammer is made of resin and the hammer is provided with an elastic structure 9b serving as the elastic deformation part. |
