US1907687A - Coil supporting spider - Google Patents

Coil supporting spider Download PDF

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Publication number
US1907687A
US1907687A US473265A US47326530A US1907687A US 1907687 A US1907687 A US 1907687A US 473265 A US473265 A US 473265A US 47326530 A US47326530 A US 47326530A US 1907687 A US1907687 A US 1907687A
Authority
US
United States
Prior art keywords
coil
coil supporting
supporting
supporting spider
arms
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
US473265A
Other languages
English (en)
Inventor
Pieter Hendrik Abraham Van Lis
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.)
RCA Corp
Original Assignee
RCA 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
Priority claimed from GB3079229A external-priority patent/GB337173A/en
Application filed by RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of US1907687A publication Critical patent/US1907687A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering

Definitions

  • This invention has reference to a supporting and centering body for the coil of an electro-dynamic device for converting electric oscillations into acoustic or conversely such, for example, as electro dynamic loudspeakers, microphones, pick-ups or the like.
  • the body is made of insulating material and the electric connection between the coil and the point of connection for the speech currents consists of metal conductors which pass through or are mounted on the material of the said body.
  • the body is made of the substance known under the registered trademark Bakelite and if the connection consists, for example, of conductive wires they can be readily pressed into the Bakelite during the manufacture of the body.
  • the electric connection is established by locally squirting the body with metal in a pulverized state.
  • Figure 2 is a plan of a different form of construction of such a body.
  • l designates the supporting and centering body, for example of Bakelite, for the coil 2 of an electrodynamic loudspeaker said coil being movably arranged in a magnetic field.
  • the windings of the coil are arranged on a small cylinder 3 integral with the body.
  • the ends of the arms 4 have mounted in them copper rings 5 by means of which the body is secured to the magnet system (not shown).
  • At least two of thepoints of attachment serve as points of connection to the conductors 6 and 7 by means of which the speech currents which are led through the conductors 8 and conductors 6 and 7, which may consist, for example, of copper. wire, are .pressed into the Bakelite during the manufacture of the body, said manufacture and the pressing operation being efiected at one manipulation. In order that it may stand out clearly that the wires are imbedded in the bakelite they are designated by dotted lines.
  • a supporting and centering body for I the coil of an electro dynamic acoustic device comprising a central portion adapted to have sald coil secured thereto, a plurality of flexible non-conducting elements extending outwardly from said central portion, andmeans for supplying speech currents to said coil,
  • said means conslsting oflayers of conducting material deposited upon at least two ofsaid flexible elements.
  • a supporting and centering body for the diaphragm and driving coil of an electro dynamic acoustic device comprising an ,annular central portion adapted to have said coil secured thereto, and a plurality of flexible non-conducting portions extending substantially radially therefrom, at least two of said vice, comprising a'relatively rigid portion adapted to have said coil secured thereto, a plurality of flexible non-conducting elements extending outwardly from said rigid portion,
  • said means consisting of layers of deposited metal carried by at least two of said flexible elements.
  • a supporting member for the voice coil of an electro-dynamic acoustic device comprising a portion adapted to be secured to the voice coil .or the voice coil supporting member, a plurality of flexible arms extending outwardly from said portion, and conductors pressed into and carried by at least one of said arms.
  • a supporting member for the voice coil of an electrodynamic acoustic device comprising a portion adapted tobe secured to the voice coil. or the voice coil supporting member, a plurality of flexible arms extending from said 1 portion, an unbroken layer of metallic material deposited on one'side ofone; of said arms, and a second unbroken layer of metallic; material deposited. on one side of another of said arms, said layers of metallic material constituting the leads for said voice coil. 7 1

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
US473265A 1929-09-03 1930-08-05 Coil supporting spider Expired - Lifetime US1907687A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1907687X 1929-09-03
GB3079229A GB337173A (en) 1929-10-10 1929-10-10 Improvements in or relating to electro-dynamic devices for converting electric oscillations into acoustic vibrations or conversely

Publications (1)

Publication Number Publication Date
US1907687A true US1907687A (en) 1933-05-09

Family

ID=26260601

Family Applications (1)

Application Number Title Priority Date Filing Date
US473265A Expired - Lifetime US1907687A (en) 1929-09-03 1930-08-05 Coil supporting spider

Country Status (4)

Country Link
US (1) US1907687A (enrdf_load_stackoverflow)
BE (1) BE372585A (enrdf_load_stackoverflow)
DE (1) DE548070C (enrdf_load_stackoverflow)
FR (1) FR700634A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526836A (en) * 1944-12-08 1950-10-24 Reproducers And Amplifiers Ltd Electrodynamic sound reproducer
US2538621A (en) * 1945-04-23 1951-01-16 Bell Telephone Labor Inc Electrodynamic transducer and connector therefor
US3014997A (en) * 1957-03-06 1961-12-26 Carl A Swanson Speaker construction
US3014996A (en) * 1956-05-18 1961-12-26 Swanson Carl Axel Speaker construction
US3516151A (en) * 1965-07-16 1970-06-23 Philips Corp Electrodynamic transducer and method of manufacturing same
US3819876A (en) * 1971-09-04 1974-06-25 Pioneer Electronic Corp Loudspeaker with improved voice coil support
US5008945A (en) * 1988-05-23 1991-04-16 Pioneer Electronic Corp. Water-proof speaker unit
US5790682A (en) * 1996-05-28 1998-08-04 Pioneer Electronic Corporation Damper for speaker
US6269167B1 (en) 1994-03-29 2001-07-31 Harman International Industries, Incorporated Loudspeaker spider, method of making it and loudspeaker incorporating it
US20120177244A1 (en) * 2011-01-07 2012-07-12 American Audio Components Inc. Speaker
US20230247369A1 (en) * 2020-05-25 2023-08-03 Goertek Inc. Application device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526836A (en) * 1944-12-08 1950-10-24 Reproducers And Amplifiers Ltd Electrodynamic sound reproducer
US2538621A (en) * 1945-04-23 1951-01-16 Bell Telephone Labor Inc Electrodynamic transducer and connector therefor
US3014996A (en) * 1956-05-18 1961-12-26 Swanson Carl Axel Speaker construction
US3014997A (en) * 1957-03-06 1961-12-26 Carl A Swanson Speaker construction
US3516151A (en) * 1965-07-16 1970-06-23 Philips Corp Electrodynamic transducer and method of manufacturing same
US3819876A (en) * 1971-09-04 1974-06-25 Pioneer Electronic Corp Loudspeaker with improved voice coil support
US5008945A (en) * 1988-05-23 1991-04-16 Pioneer Electronic Corp. Water-proof speaker unit
US6269167B1 (en) 1994-03-29 2001-07-31 Harman International Industries, Incorporated Loudspeaker spider, method of making it and loudspeaker incorporating it
US7082667B2 (en) 1994-03-29 2006-08-01 Harman International Industries, Incorporated Method of making a loudspeaker
US5790682A (en) * 1996-05-28 1998-08-04 Pioneer Electronic Corporation Damper for speaker
US20120177244A1 (en) * 2011-01-07 2012-07-12 American Audio Components Inc. Speaker
US20230247369A1 (en) * 2020-05-25 2023-08-03 Goertek Inc. Application device
US12375858B2 (en) * 2020-05-25 2025-07-29 Goertek Inc. Application device including an elastic member

Also Published As

Publication number Publication date
FR700634A (fr) 1931-03-05
BE372585A (enrdf_load_stackoverflow)
DE548070C (de) 1932-04-11

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