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Patent Searching and Data


Title:
HORN FOR SPEAKERS AND HORN SPEAKER
Document Type and Number:
WIPO Patent Application WO/2019/092966
Kind Code:
A1
Abstract:
The horn (6) for speakers is provided with a horn body (24) having: a circular first opening (28) formed at a first end part (26); a second opening (34) formed at a second end part (32) and having a shape other than a circular shape; and a sound path (38) providing communication between the first opening (28) and the second opening (34). In a cross-section including a central axis (40) of the horn body (24), an inner surface of the sound path (38) expands from the first opening (28) toward the second opening (34) while forming a quartic curve. The length (L2) from the first end part (26) to the second end part (32) of the horn body (24) is at least 0.8 times that of the radius (R) of the first opening (28).

Inventors:
IKEUCHI, Kazuhiko
ASAHINA, Kazuya
Application Number:
JP2018/033083
Publication Date:
May 16, 2019
Filing Date:
September 06, 2018
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
H04R1/30
Foreign References:
JPS6278996A1987-04-11
JPH02199993A1990-08-08
JPS55690A1980-01-07
JPS573495A1982-01-08
JPS53100925U1978-08-15
Attorney, Agent or Firm:
NII, Hiromori et al. (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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