Title: Key of musical instrument
Application Number: 02151483 Application Date: 2002.10.16
Publication Number: 1412740 Publication Date: 2003.04.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10C3/12
Applicant(s) Name: Kawai Gakki Seisakusho K.K. Address:
Inventor(s) Name: Okubo Kenichi
Attorney & Agent: wen dapeng zheng jianhui
Abstract:
    A key for a musical instrument is provided for effectively giving a touch load to the key, while employing an alternative material having a specific gravity equal to or larger than a predetermined value, instead of lead, as a material for the weight, simplifying works involved in fixing the weight in a key body, and reducing the frequency of troubles such as cracking of the key body, thereby reducing the manufacturing cost. The key comprises a swingable key body formed with an embedding hole which extends through a front plate in the vertical direction to reach the key body, and a weight made of an alternative material other than lead. The weight has a smooth portion and a knurled portion on the outer peripheral surface thereof. The weight is press-fitted into the embedding hole from the smooth portion and thereby fixed in the key body.
Time: 7
<- Previous Patent:Keys of musical instrument   |  Next Patent:Keyboard musical instrument for g... ->