JPS5552697A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5552697A
JPS5552697A JP12714278A JP12714278A JPS5552697A JP S5552697 A JPS5552697 A JP S5552697A JP 12714278 A JP12714278 A JP 12714278A JP 12714278 A JP12714278 A JP 12714278A JP S5552697 A JPS5552697 A JP S5552697A
Authority
JP
Japan
Prior art keywords
cone
concave
convex
pleats
cross
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
JP12714278A
Other languages
Japanese (ja)
Inventor
Shosuke Sasaki
Takeji Kebugawa
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.)
IMAOKA NORIYOSHI
KEBUGAWA MITSUO
MATSUDA KIYOHISA
Original Assignee
IMAOKA NORIYOSHI
KEBUGAWA MITSUO
MATSUDA KIYOHISA
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 IMAOKA NORIYOSHI, KEBUGAWA MITSUO, MATSUDA KIYOHISA filed Critical IMAOKA NORIYOSHI
Priority to JP12714278A priority Critical patent/JPS5552697A/en
Publication of JPS5552697A publication Critical patent/JPS5552697A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To increase greatly the minimum frequency of the cone's division vibration and thus to secure the flat frequency characteristics by giving the concave and convex pleats to the cone so that the direction of the line formed by continuation of the concave and convex areas of the pleats may be set to the direction where the sound wave propagates on the cone. CONSTITUTION:Plane and rectangular cone 107 contains the concave and convex pleats on its cross section and formed into the cross-section waveform shape. And the cross section is formed into an rectangle on the surface vertical to the moving direction of voice coil 105 in accordance with the shape of cone 107. At the same time, the direction of the line formed by continuation of the convex and concave areas of cone 107 is set to the direction where the sound wave propagates on cone 107. Then the minimum frequency is increased for the division vibration of the cone thus securing the flat frequency characteristics.
JP12714278A 1978-10-12 1978-10-12 Speaker Pending JPS5552697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12714278A JPS5552697A (en) 1978-10-12 1978-10-12 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12714278A JPS5552697A (en) 1978-10-12 1978-10-12 Speaker

Publications (1)

Publication Number Publication Date
JPS5552697A true JPS5552697A (en) 1980-04-17

Family

ID=14952648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12714278A Pending JPS5552697A (en) 1978-10-12 1978-10-12 Speaker

Country Status (1)

Country Link
JP (1) JPS5552697A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151797A (en) * 1982-03-05 1983-09-09 Mitsubishi Electric Corp Diaphragm for speaker
JPS58135190U (en) * 1982-03-05 1983-09-10 三菱電機株式会社 Diaphragm for speaker
US7146021B2 (en) * 2001-02-01 2006-12-05 Pioneer Speakers, Inc. Whizzer cone for loudspeaker for producing uniform frequency response

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151797A (en) * 1982-03-05 1983-09-09 Mitsubishi Electric Corp Diaphragm for speaker
JPS58135190U (en) * 1982-03-05 1983-09-10 三菱電機株式会社 Diaphragm for speaker
US7146021B2 (en) * 2001-02-01 2006-12-05 Pioneer Speakers, Inc. Whizzer cone for loudspeaker for producing uniform frequency response

Similar Documents

Publication Publication Date Title
JPS5552697A (en) Speaker
JPS5657391A (en) Ultrasonic oscillator
JPS56126397A (en) Speaker system
JPS56134819A (en) Surface wave filter
JPS52139414A (en) Non-directional horn speaker
JPS542715A (en) Speaker cone and production of the same
JPS53132246A (en) Elastic surface wave filter
JPS5245921A (en) Speaker of full surface driven type
JPS5299809A (en) Flat speaker
JPS546523A (en) Diaphragm of speakers
JPS52154623A (en) Sound diaphragm
JPS5571394A (en) Speaker
JPS51113594A (en) Landupan-type vibrator
JPS5317244A (en) Surface wave filter and its production
JPS56168496A (en) Speaker
JPS5219994A (en) Sound wave converter unit
JPS53132333A (en) Diaphragm for acoustic transducers
JPS57199316A (en) Surface acoustic wave filter
JPS5413321A (en) Multi-way speaker system
JPS51129219A (en) Dynamic electrical acoustic converter
JPS55124393A (en) Acoustic reproducer
JPS5555615A (en) Surface acoustic wave filter
JPS5580997A (en) Speaker
JPS5347817A (en) Vibrating plate for speaker
JPS51150321A (en) Electric echo converter