| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent obstruction of touch of keys, even in performance which will not allow a string striking sound by a hammer to be generated. <P>SOLUTION: A hammer head and a hammer shank striking strings through turning are provided. A jack turned by pushing them up from downward and a key for transmitting force to the jack are provided. A push-out part is provided on the hammer shank by being pushed out to the outside of a turning range of the hammer head. A hammer stopper, abutting against the push-out part is provided immediately prior to striking the strings by the hammer head. Abutment or non-abutment of the hammer stopper and the push-up part is switched with a switching means. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
