JPS5546679A - Speaker diaphragm and edge material - Google Patents

Speaker diaphragm and edge material

Info

Publication number
JPS5546679A
JPS5546679A JP12085378A JP12085378A JPS5546679A JP S5546679 A JPS5546679 A JP S5546679A JP 12085378 A JP12085378 A JP 12085378A JP 12085378 A JP12085378 A JP 12085378A JP S5546679 A JPS5546679 A JP S5546679A
Authority
JP
Japan
Prior art keywords
resin
foamless
foamed sheet
edge
bonded
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
JP12085378A
Other languages
Japanese (ja)
Inventor
Shozo Matsuyama
Yoshitaka Matsukawa
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.)
AZUMA KASEI KK
Original Assignee
AZUMA KASEI KK
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 AZUMA KASEI KK filed Critical AZUMA KASEI KK
Priority to JP12085378A priority Critical patent/JPS5546679A/en
Publication of JPS5546679A publication Critical patent/JPS5546679A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To obtain a thin and lightweiht material suitable for an edge with its air-permeability reduced by forming a foam-less-resin layer of bonded foamless resin on a foamed sheet and then by obtaining the speaker edge by cutting after thermal formation. CONSTITUTION:A resin material such as urethane resin and polyethylene is made into a foamed sheet and foamless resin such as acrylic resin and polyester resin is bonded on this base material. Of this bonded resin, a foamless resin layer is formed on the foamed sheet and after thermal formation, it is cut to obtain a speaker edge. Consequently, the foamless resin layer is formed on the foamed sheet to reduce its air-permeability and , in consequence, a thin and lightweight material can be obtained which is suitable for the edge.
JP12085378A 1978-09-29 1978-09-29 Speaker diaphragm and edge material Pending JPS5546679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12085378A JPS5546679A (en) 1978-09-29 1978-09-29 Speaker diaphragm and edge material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12085378A JPS5546679A (en) 1978-09-29 1978-09-29 Speaker diaphragm and edge material

Publications (1)

Publication Number Publication Date
JPS5546679A true JPS5546679A (en) 1980-04-01

Family

ID=14796556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12085378A Pending JPS5546679A (en) 1978-09-29 1978-09-29 Speaker diaphragm and edge material

Country Status (1)

Country Link
JP (1) JPS5546679A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8315420B2 (en) 2007-02-28 2012-11-20 Bose Corporation Spider
US20210409869A1 (en) * 2018-10-11 2021-12-30 Sony Corporation Speaker edge, diaphragm unit, and method of manufacturing speaker edge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4928922U (en) * 1972-06-15 1974-03-12
JPS5066229A (en) * 1973-10-11 1975-06-04
JPS5357838A (en) * 1976-11-04 1978-05-25 Ibm Droplet shape control device in ink jet printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4928922U (en) * 1972-06-15 1974-03-12
JPS5066229A (en) * 1973-10-11 1975-06-04
JPS5357838A (en) * 1976-11-04 1978-05-25 Ibm Droplet shape control device in ink jet printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8315420B2 (en) 2007-02-28 2012-11-20 Bose Corporation Spider
US20210409869A1 (en) * 2018-10-11 2021-12-30 Sony Corporation Speaker edge, diaphragm unit, and method of manufacturing speaker edge

Similar Documents

Publication Publication Date Title
CA2096123A1 (en) Polypropylene sheet material with improved cut resistance
JPS5310182A (en) Process for forming corrugated cardboard
JPS5546679A (en) Speaker diaphragm and edge material
GB2020606A (en) Method and apparatus for dividing boards and other sheet material
JPS535284A (en) Agricultural light reflecting sheet and its preparation
GB976843A (en) Reinforced porous and permeable sheet material and method of making same
IE37953L (en) Foamed synthetic plastics laminate
JPS5437718A (en) Diaphragm for speakers
JPS56109097A (en) Diaphragm plate for speaker and its manufacture
JPS5318077A (en) Punch made of composite material with cemented carbide cutting edge
JPS5487784A (en) Laminate sheet
ES466030A1 (en) Method of producing thinclad materials for printed circuits
JPS5611218A (en) Edge treating method for interior packaging parts with pad material incorporated therein
JPS565000A (en) Manufacture of edge for speaker diaphragm
JPS5311931A (en) Method of laminating surface material in the production of corrugated board for interior
JPS5333281A (en) Foamed and laminated sheet, tile block for construction and production of the same
JPS5217281A (en) Cutting method of synthetic resin forms
JPS5428340A (en) Bonding of sheets, films, and mats
JPS5565904A (en) Reflector for traffic signals or the like and production thereof
JPS5490371A (en) Method of making decorative laminate with side edge covered with decorative layer
JPS5565513A (en) Production of cover piece for thermoplastic synthetic resin bag
JPS5616396A (en) Manufacture of speaker diaphragm edge
JPS57182405A (en) Patterning internal finish material by high frequency
JPS5769995A (en) Diaphragm for speaker
JPS5511972A (en) Molded chiling for automobile