Jack motion-restricting device for upright piano
AssigneeKabushiki Kaisha Kawai Gakki Seisakusho
InventorHidenori Kugimoto
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Abstract
A jack motion-restricting device for an upright piano, which is capable of maintaining constant a jack motion-restricting position by a simple construction to thereby obtain an intended operation of the jack. The jack motion-restricting device restricts the motion of the jack operating in accordance with key depression by having the jack abut thereagainst. A base part of the device is provided at a location close to the jack. A base layer of the same is formed of a material having dimensional stability, and is affixed to the base part. A surface layer of the same is formed of a material having abrasion resistance and flexibility, and is affixed to the base layer, for having the jack abut thereagainst.
Claims5
A jack motion-restricting device for an upright piano, which restricts motion of a jack operating in accordance with key depression, by having the jack abut thereagainst, comprising:
- a base part that is provided at a location close to the jack;
- a base layer that is formed of a material having dimensional stability, and is affixed to said base part;
- and
- a surface layer that is formed of a material having abrasion resistance and flexibility, and is affixed to said base layer, for having the jack abut thereagainst.
Dependencies are inferred from the claim text.