Title:
鍵盤ハーモニカ
Document Type and Number:
Japanese Patent JP6724814
Kind Code:
B2
Abstract:
The present invention provides a keyboard harmonica capable of adjusting tones without the need for a complex structure. The aperture ratio of the valve packing 40 of a keyboard harmonica 1 is less than 1 for a midrange SA2 and a high range SA3. Therefore, flowing air strikes the valve packing 40 in reed chambers 10 corresponding to the midrange SA2 and the high range SA3 to change an airflow pathway R, thereby causing tones for the midrange SA2 and the high range SA3 to be mellow. Furthermore, since the shapes of the openings 41 of the valve packing 40 are modified, tones can be adjusted without requiring a complex structure.
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Inventors:
Yoshitaka Noguchi
Application Number:
JP2017027092A
Publication Date:
July 15, 2020
Filing Date:
February 16, 2017
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
G10D7/16; G10D9/10; G10D9/04
Domestic Patent References:
| JP56035682U |
Attorney, Agent or Firm:
Patent business corporation NEXT