Shank flange for piano
AssigneeKabushiki Kaisha Kawai Gakki Seisakusho
InventorKenji Yoshisue
Life of this patent
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Abstract
A shank flange for use in a piano for supporting a hammer which makes a pivotal movement in response to depression on a key. The shank flange comprises a molding made of thermoplastic resin containing long fibers for reinforcement. The molding is molded by a long-staple method. The long fibers are carbon fibers. The shank flange excels in homogeneity and dimension stability, and has a high rigidity which can assure a smooth and stable action of the hammer. Also, dust and the like can be prevented from sticking to the shank flange and its surroundings, thus maintaining a precise action of the hammer and an aesthetically good appearance around the shank flange.
Claims10
A shank flange for use in a piano for supporting a hammer which makes a pivotal movement in response to depression on a key, said shank flange comprising:
- a molding made of thermoplastic resin containing long fibers for reinforcement, said molding comprising an injection molded pellet that is coated with a thermoplastic resin and contains a fibrous reinforcing material containing fibers having a same length as a length of the pellet.
A method for manufacturing a shank flange for use in a piano for supporting a hammer which makes a pivotal movement in response to depression on a key, comprising the steps of:
- molding the shank flange by injection molding of a pellet that is coated with a thermoplastic resin and contains a fibrous reinforcing material containing fibers having a same length as a length of the pellet.
Dependencies are inferred from the claim text.