US3835265A - Vibrating member for acoustic transducer - Google Patents

Vibrating member for acoustic transducer Download PDF

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Publication number
US3835265A
US3835265A US00303544A US30354472A US3835265A US 3835265 A US3835265 A US 3835265A US 00303544 A US00303544 A US 00303544A US 30354472 A US30354472 A US 30354472A US 3835265 A US3835265 A US 3835265A
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US
United States
Prior art keywords
film
marking
vibrating
vibrating member
set forth
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.)
Expired - Lifetime
Application number
US00303544A
Other languages
English (en)
Inventor
T Itagaki
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
Tokorozawa Electronics Corp
Original Assignee
Pioneer Electronic Corp
Tokorozawa Electronics 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, Tokorozawa Electronics Corp filed Critical Pioneer Electronic Corp
Application granted granted Critical
Publication of US3835265A publication Critical patent/US3835265A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • 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
    • H04R7/04—Plane diaphragms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer

Definitions

  • ABSTRACT A vibrating member for an acoustic transducer made of a transparent or translucent thin film and bearing a marking thereon, by which possible overlap of two or more vibrating members can be readily determined visually, and a method for producing the vibrating member comprising'a marking step, a heating step and a punching step.
  • the present invention generally relates to a vibrating member and, more particularly, to a transparent or translucent vibrating member for use in such an electroacoustic transducer as a small-sized speaker or a microphone and a method for producing a vibrating member of this character.
  • an object of the present invention to provide an improved vibrating member for facilitating and ensuring visual confirmation of an overlap of two or more vibrating members to be incorporated in electro-acoustic transducers.
  • the present invention provides a vibrating member for use in an electroacoustic transducer, consisting essentially of a transparent or translucent thin film and a marking borne thereon to facilitate a visual confirmation of an overlap with other vibrating members.
  • FIG. 1 is a schematic view illustrating a preferred example of the manner of producing the vibrating member according to the present invention
  • FIG. 2 is a fragmentary plan view of the thin film undergoing processing in the manner shown in FIG. 1;
  • FIG. 3 is a perspective view illustrating a preferred example of the vibrating member of the invention.
  • FIG. 4 is a fragmentary plan view of the thin film undergoing processing in a manner similar to that shown in FIG. 1.
  • a transparent or translucent film of plastic having a considerable thinness and which is shown to be. rolled on a shaft 2.
  • Means for providing markings on the plastic film l or a printer 3 is disposed to provide a suitable marking which may be in the form of dots (a) as shown in FIG. 2 or a continuous wave-like line (b) as indicated in FIG. 4.
  • the printer 3 is followed by heating means 4 which is adapted to heat the film l for thereby consecutively configuring vibrating members 5 one of which is indicated in FIG. 3 by way of example.
  • punching means or a press which is operable to punch the film.
  • the plastic thin film l is first fed from the shaft 2 to the printer 3 which then provides the film l with the marking of dots (a) or continuous wave-like line (b).
  • the film 1 thus bearing markings thereon is then subjected to a heating process by means of the heating means 4 and, thus, formed with shapings of vibrating members 5 of a desired configuration.
  • the press 6 disposed to follow the heating means then punches the film for thereby separating the shapings of the vibrating members away from the film.
  • the dots (a) are shown and described as being in similar positional relationships to one another, they may be provided in irregular fashion with respect to one another. In this instance, the dots (a) on a given vibrating member do not coincide in their positions with those on other vibrating members, so that the markings will not align with one another.
  • the continuous line (b) shown in FIG. 4 is provided in the form of a wave-like line because the marking will be borne on the vibrating members in a more effective manner due to the different lengths and positions of lines on the respective vibrating members.
  • the vibrating member and the method for producing the vibrating member according to the present invention are advantageous in that the vibrating member has its markings thereon positioned so as to not align or coincide with those on other vibrating members and, thus, an overlap of two or more vibrating members can be readily found out visually with an efficiency superior to that of the tactual confirmation conventionally practiced.
  • the vibrating member has its markings thereon positioned so as to not align or coincide with those on other vibrating members and, thus, an overlap of two or more vibrating members can be readily found out visually with an efficiency superior to that of the tactual confirmation conventionally practiced.
  • the vibrating member may have the marking provided thereon after the forming step.
  • the vibrating member is capable of improving the efficiency of assembling of, for example, the microphone although it is required to descriminate an overlap of the vibrating members where the marking step is preceded by the forming step of the vibrating member.
  • a vibrating member for use in an electroacoustic transducer comprising a transparent or translucent thin film and a marking borne thereon to facilitate a visual confirmation of an overlap with other vibrating members.
  • a vibratable member for use in an electroacoustic transducer consisting of a one-piece, annular, transparent or translucent, thin plastic film of uniform thickness and having a visible marking printed on the surface of the film to facilitate a visual confirmation of an overlap of the film with other similar films.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
US00303544A 1971-11-08 1972-11-03 Vibrating member for acoustic transducer Expired - Lifetime US3835265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971103200U JPS5116284Y2 (enExample) 1971-11-08 1971-11-08

Publications (1)

Publication Number Publication Date
US3835265A true US3835265A (en) 1974-09-10

Family

ID=14347860

Family Applications (1)

Application Number Title Priority Date Filing Date
US00303544A Expired - Lifetime US3835265A (en) 1971-11-08 1972-11-03 Vibrating member for acoustic transducer

Country Status (3)

Country Link
US (1) US3835265A (enExample)
JP (1) JPS5116284Y2 (enExample)
DE (1) DE2254292B2 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467979A (en) * 1982-02-01 1984-08-28 Noma Inc. Cord reel
EP0185833A1 (en) * 1984-12-27 1986-07-02 Audiotecnica Italina srl Membrane in plastic materials for loudspeakers
US6554098B1 (en) * 1999-06-15 2003-04-29 Nec Corporation Panel speaker with wide free space
US7035422B1 (en) 2000-02-15 2006-04-25 Soundtube Entertainment, Inc. Wearable speaker garments
US7440581B2 (en) 2000-04-12 2008-10-21 Soundtube Entertainment, Inc. Backpack with integrated speakers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626743A (en) * 1925-02-21 1927-05-03 American Telephone & Telegraph Cone loud-speaker diaphragm
US1688730A (en) * 1928-10-23 Best available cop
US2030501A (en) * 1934-01-31 1936-02-11 Rca Corp Loudspeaker cone diaphragm and method of producing same
US2044608A (en) * 1935-05-03 1936-06-16 Du Pont Viscoloid Co Diaphragm for electrical reproduction of sound

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688730A (en) * 1928-10-23 Best available cop
US1626743A (en) * 1925-02-21 1927-05-03 American Telephone & Telegraph Cone loud-speaker diaphragm
US2030501A (en) * 1934-01-31 1936-02-11 Rca Corp Loudspeaker cone diaphragm and method of producing same
US2044608A (en) * 1935-05-03 1936-06-16 Du Pont Viscoloid Co Diaphragm for electrical reproduction of sound

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467979A (en) * 1982-02-01 1984-08-28 Noma Inc. Cord reel
EP0185833A1 (en) * 1984-12-27 1986-07-02 Audiotecnica Italina srl Membrane in plastic materials for loudspeakers
US6554098B1 (en) * 1999-06-15 2003-04-29 Nec Corporation Panel speaker with wide free space
US7035422B1 (en) 2000-02-15 2006-04-25 Soundtube Entertainment, Inc. Wearable speaker garments
US7440581B2 (en) 2000-04-12 2008-10-21 Soundtube Entertainment, Inc. Backpack with integrated speakers

Also Published As

Publication number Publication date
JPS4875630U (enExample) 1973-09-19
DE2254292B2 (de) 1976-04-22
JPS5116284Y2 (enExample) 1976-04-28
DE2254292A1 (de) 1973-05-17

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