| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a keyboard capable of easily adjusting a touch weight while using a replaced material replaced for lead as a material of a weight and suppressing the cost low without changing a production facility by the same caulking method as the conventional one. SOLUTION: The keyboard is provided with a weight-attached recess part 2a having a rectangular cross section, extending in the before and behind direction and formed on a lower face along the before and behind direction, a swingable keyboard body having caulking rod insertion holes 2b and 2b penetrating the keyboard body 2 in the right and left direction and crossing and forming the weight attached recess 2a, a plate-like weight 3 composed of a material except for lead, having holes 3a and 3a corresponding to the caulking rod insertion holes 2b and 2b, inserted in the weight attached recess part 2a of the keyboard body 2 and giving the weight to the keyboard body 2, and a caulking rod 4 composed of a material except for lead and fixing the weight 3 on the keyboard body 2 by caulking it in the state that it is inserted in the caulking rod insertion holes 2b and 2b and holes 3a and 3a of the weight 3.</p> |
