JPS57184396A - Horn speaker - Google Patents

Horn speaker

Info

Publication number
JPS57184396A
JPS57184396A JP56068329A JP6832981A JPS57184396A JP S57184396 A JPS57184396 A JP S57184396A JP 56068329 A JP56068329 A JP 56068329A JP 6832981 A JP6832981 A JP 6832981A JP S57184396 A JPS57184396 A JP S57184396A
Authority
JP
Japan
Prior art keywords
horn
horn speaker
resonance
speaker
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56068329A
Other languages
Japanese (ja)
Inventor
Shoji Ogasawara
Katsuhiro Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56068329A priority Critical patent/JPS57184396A/en
Publication of JPS57184396A publication Critical patent/JPS57184396A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To prevent the resonance of a horn speaker, by forming a resin film at the outer circumference of the horn part of the horn speaker by spraying the resin mixed with a filler. CONSTITUTION:A resin film 5 is formed at the outer circumference of the horn part 1 of a horn speaker in order to prevent the resonance. The film 5 contains an essential component of alkyd resin and asbestos, rubber and cotton to ensure the effect of a resonance preventing agent. Furthermore the filler in a composition of the diatomaceous earth, silica powder and talc. As a result, the resoance of a horn speaker is avoided.
JP56068329A 1981-05-08 1981-05-08 Horn speaker Pending JPS57184396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56068329A JPS57184396A (en) 1981-05-08 1981-05-08 Horn speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56068329A JPS57184396A (en) 1981-05-08 1981-05-08 Horn speaker

Publications (1)

Publication Number Publication Date
JPS57184396A true JPS57184396A (en) 1982-11-13

Family

ID=13370676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56068329A Pending JPS57184396A (en) 1981-05-08 1981-05-08 Horn speaker

Country Status (1)

Country Link
JP (1) JPS57184396A (en)

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