| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a key applied to a keyboard apparatus with a mass body to be diverted to the keyboard apparatus with no mass body. <P>SOLUTION: An L-shape drooping setting part 24 which has a side view L shape comprised of a drooping part 25 vertically sunk down on the lower side and an extended part 26 extended backward from a lower end part of the drooping part 25 is provided from a key body part 23 of a key 20. The L-shape drooping setting part 24 has the same structure as the key in a keyboard apparatus with no hammer. A hammer HM is turnably arranged corresponding to each key 20, and a driven part 33 is provided at a front end of a stick part 31 of the hammer HM. The driven part 33 is crimped and fitted between an upper surface 26a of the extended part 26 of the L-shape drooping setting part 24 and an opposed lower surface 23a opposed to the upper surface 26a of the extended part 26 in the key body part 23. The driven part 33 normally engages between the key body part 23 and the extended part 26, and the key 20 and the hammer HM interlock to turn in a two-way direction of a turning back and forth direction. <P>COPYRIGHT: (C)2009,JPO&INPIT |
