JPS5533339A - Center cap for conical boronic diaphragm - Google Patents

Center cap for conical boronic diaphragm

Info

Publication number
JPS5533339A
JPS5533339A JP10554478A JP10554478A JPS5533339A JP S5533339 A JPS5533339 A JP S5533339A JP 10554478 A JP10554478 A JP 10554478A JP 10554478 A JP10554478 A JP 10554478A JP S5533339 A JPS5533339 A JP S5533339A
Authority
JP
Japan
Prior art keywords
center cap
boronic
diaphragm
reproduction
conical
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
JP10554478A
Other languages
Japanese (ja)
Inventor
Tatsuo Saito
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP10554478A priority Critical patent/JPS5533339A/en
Publication of JPS5533339A publication Critical patent/JPS5533339A/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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or 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 ensure a high-efficiency reproduction at the high range by giving the boron diffusion process through permeation of the boron layer onto the surface of the base metal. CONSTITUTION:Boron layer 3 is permeated onto the surface of titanium material 2 functioning as the base metal through a high-temperature diffusion process at about 1000 deg.C, thus forming the center cap. This boronic center cap is incorporated into the boronic diaphragm to be assembled into an acoustic speaker. As a result, the homogeneous radiant sound quality can be obtained, and at the same time the center cap itself can be used for the high range reproduction. Thus a high-efficiency high range reproduction is ensured by using the center cap as part of the diaphragm because of a high vertical elastic coefficient of the center cap.
JP10554478A 1978-08-31 1978-08-31 Center cap for conical boronic diaphragm Pending JPS5533339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10554478A JPS5533339A (en) 1978-08-31 1978-08-31 Center cap for conical boronic diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10554478A JPS5533339A (en) 1978-08-31 1978-08-31 Center cap for conical boronic diaphragm

Publications (1)

Publication Number Publication Date
JPS5533339A true JPS5533339A (en) 1980-03-08

Family

ID=14410518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10554478A Pending JPS5533339A (en) 1978-08-31 1978-08-31 Center cap for conical boronic diaphragm

Country Status (1)

Country Link
JP (1) JPS5533339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174758A (en) * 1981-04-18 1982-10-27 Aloka Co Ltd Reconstituted arithmetic processing method of tomogram image for calculated tomogram image method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124622A (en) * 1974-03-18 1975-09-30
JPS50124623A (en) * 1974-03-18 1975-09-30

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124622A (en) * 1974-03-18 1975-09-30
JPS50124623A (en) * 1974-03-18 1975-09-30

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174758A (en) * 1981-04-18 1982-10-27 Aloka Co Ltd Reconstituted arithmetic processing method of tomogram image for calculated tomogram image method
JPH0236990B2 (en) * 1981-04-18 1990-08-21 Aloka

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