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Patent Searching and Data


Title:
KEYBOARD HARMONICA
Document Type and Number:
WIPO Patent Application WO/2018/150825
Kind Code:
A1
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.

Inventors:
NOGUCHI YOSHITAKA (JP)
Application Number:
PCT/JP2018/002106
Publication Date:
August 23, 2018
Filing Date:
January 24, 2018
Export Citation:
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Assignee:
YAMAHA CORP (JP)
International Classes:
G10D7/16; G10D9/10; G10D9/04
Foreign References:
JPS5635682U1981-04-06
Attorney, Agent or Firm:
CHUBU PATENT OFFICE (JP)
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