DE471811C - Loudspeaker system with a magnetically neutral armature rotating around its central axis - Google Patents

Loudspeaker system with a magnetically neutral armature rotating around its central axis

Info

Publication number
DE471811C
DE471811C DEI34064D DEI0034064D DE471811C DE 471811 C DE471811 C DE 471811C DE I34064 D DEI34064 D DE I34064D DE I0034064 D DEI0034064 D DE I0034064D DE 471811 C DE471811 C DE 471811C
Authority
DE
Germany
Prior art keywords
armature
loudspeaker system
central axis
rotating around
spring
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
Application number
DEI34064D
Other languages
German (de)
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.)
IDEAL WERKE AG
Original Assignee
IDEAL WERKE AG
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 to NL27089D priority Critical patent/NL27089C/xx
Application filed by IDEAL WERKE AG filed Critical IDEAL WERKE AG
Priority to DEI34064D priority patent/DE471811C/en
Priority to DEI35186D priority patent/DE481259C/en
Priority to GB2539428A priority patent/GB315140A/en
Priority to GB25393/28A priority patent/GB309067A/en
Priority to US31418528 priority patent/US1790437A/en
Priority to FR668893D priority patent/FR668893A/en
Priority to CH137793D priority patent/CH137793A/en
Application granted granted Critical
Publication of DE471811C publication Critical patent/DE471811C/en
Expired 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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

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

Description

Lautsprecher-System mit magnetisch neutralem, sich um seine Mittelachse drehendem Anker Die Erfindung bezieht sich auf Lautsprecher-Systeme, deren Anker, ähnlich wie bei den bekannten Telegraphierelais, in magnetisch neutraler Lage zwischen zwei Magnetpolpaaren schwebt und unter deren Einfiusse der Sprechströme Drehschwingungen um seine Mittelachse ausführt. B_ @ei solchen Lautsprecher-Systemen ist es nicht leicht möglich, die Lage des Ankers zwischen den Magnetpolen während des Betriebes durch eine Regelschraube einzustellen. Die Erfindung löst diese Aufgabe mit verhältnismäßig einfachen Mitteln.Loudspeaker system with magnetically neutral, revolving around its central axis rotating armature The invention relates to loudspeaker systems whose armature, similar to the known telegraph relays, in a magnetically neutral position between two pairs of magnetic poles floats and under their influence of speech currents torsional vibrations executes around its central axis. B_ @ei such loudspeaker systems is not easily possible, the position of the armature between the magnetic poles during operation can be adjusted by means of a regulating screw. The invention solves this problem with relative simple means.

Die Abbildungen zeigen eine zweckmäßige Ausführungsform der Erfindung. Es sind nur die für die Erklärung der Wirkungsweise wesentlichen Teile dargestellt, und zwar in Abb. i in Ansicht von der Seite, in Abb. z in Ansicht von oben, in den Abb. 3, q. und 5 im Schnitt. Insbesondere sind der Stahlmagnet und seine Polschuhe sowie die Spulen in deren Hohlraum der Anker schwingt, weggelassen.The figures show an expedient embodiment of the invention. Only the parts that are essential for the explanation of the mode of operation are shown, namely in Fig. i in view from the side, in Fig. z in view from above, in the Fig. 3, q. and 5 on average. In particular, the steel magnet and its pole pieces are as well as the coils in the cavity of which the armature oscillates, omitted.

Der Ankern wird von einer Blattfederb getragen, durch deren Mitte er hindurchgeht, und an der er festgelötet ist. An seinem einen Ende ist der Schallstifts für die Membran befestigt. Die Blattfeder b erlaubt die Drehschwingungen des Ankers, deren Richtung in Abb. q. durch zwei kleine Pfeile angedeutet ist. Diese Blattfeder wird von einem Bock c getragen, welcher zweckmäßig aus einem massiven Messingstück mit einer Anzahl von Einfräsungen k besteht. Der Bock selbst ist mit zwei Schraubend an der zweckmäßig aus Spritzauß hergestellten rahmenförmigen Grundplatte g befestigt, die nach oben- einen torförmigen Fortsatz t besitzt. Dieser dient zur Befestigung der Polschuhe usw. und spielt hier keine Rolle.The anchor is carried by a leaf spring through the middle he goes through, and to which he is soldered. At one end is the sound pen attached for the membrane. The leaf spring b allows the torsional vibrations of the armature, their direction in Fig. q. is indicated by two small arrows. This leaf spring is carried by a bracket c, which is expediently made of a solid brass piece with a number of millings k. The bracket itself has two screws attached to the frame-shaped base plate g, which is expediently made from injection molding, which has a gate-shaped extension t upwards. This is used for fastening the pole shoes etc. and does not matter here.

Der Mittelteil des Bockes c ist dank seiner Ausfräsungen k um die Punkte x, x elastisch schwenkbar. Die so geschaffene Drehungsachse liegt in einer Linie mit der des Ankers, Bei Verdrehung des Bockes um diese Achse wird der von ihm getragene Anker mitgenommen und erfährt daher die gewünschte Verstellung. Bewirkt wird diese Verdrehung und somit die Verstellung des Ankers durch die Regelschraubelt (Abb. q.), bei deren Rechtsdrehung der Bock c gegen den Druck der Feder f nach rechts gezogen wird. Die Feder stützt sich dabei gegen das in einer Einsenkung der Grundplatte g befestigte Blechstück!. Dieses ist in Abb. i der Deutlichkeit halber weggelassen und dafür in Abb.6 dargestellt. Uni die Drehung der Regelschraubeh und damit die Verstellung des Ankers zu begrenzen, trägt erstelle einen beiderseits aus ihr vorstehenden Stift m; der gegen den Stift n des Stückes i anschlägt und daher nur eine Drehung von weniger als i8o° der Regelschraube gestattet.The middle part of the block c is thanks to its millings k around the Points x, x can be swiveled elastically. The axis of rotation created in this way lies in one Line with that of the anchor, when the bracket is rotated around this axis, the of Anchors worn by him are taken along and therefore undergoes the desired adjustment. Causes this rotation and thus the adjustment of the armature by the control screw (Fig. Q.), When it is turned to the right, the block c turns to the right against the pressure of the spring f is pulled. The spring is supported against that in a depression in the base plate g attached piece of sheet metal !. This is omitted in Fig. I for the sake of clarity and shown in Fig. 6. Uni the rotation of the regulating screw and thus the Limiting displacement of the anchor bears creating one protruding from it on either side Pen m; which strikes against the pin n of the piece i and therefore only one rotation less than i8o ° of the adjustment screw.

Claims (1)

ljAT1:NTANSPRÜCli1;: i. Lautsprecher-System mit magnetisch neutralem, sich um seine Mittelachse drehendem Anker, dessen Lagerung aus einer Feder besteht, dadurch gekennzeichnet, daß zur Ermöglichung einer Einstellung !des Ankers zwischen. den Magnetpolen die Tragfeder des Ankers auf einem Bock befestigt ist, welcher um die Verlängerung der Drehachse des Ankers elastisch drehbar ist und von einer Regelschraube bewegt wird. z. Lautsprecher-System nach Anspruch i, dadurch gekennzeichnet, daß der die Ankerfeder tragende Bock aus einem einzigen Metallstück besteht, welches in der Verlängerung der Ankerfeder durch Einfräsungen (k) so geschwächt ist, daß es um dieselben eine geringe elastische Drehung ausführen. kann.ljAT1: NTANSPRÜCli1 ;: i. Loudspeaker system with magnetically neutral, armature rotating around its central axis, the bearing of which consists of a spring, characterized in that to enable adjustment! of the armature between. the magnetic poles the suspension spring of the armature is attached to a bracket, which is around the extension of the axis of rotation of the armature is elastically rotatable and by a regulating screw is moved. z. Loudspeaker system according to claim i, characterized in that the bracket supporting the armature spring consists of a single piece of metal, which is so weakened in the extension of the armature spring by millings (k) that make a slight elastic twist around them. can.
DEI34064D 1928-04-04 1928-04-04 Loudspeaker system with a magnetically neutral armature rotating around its central axis Expired DE471811C (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL27089D NL27089C (en) 1928-04-04
DEI34064D DE471811C (en) 1928-04-04 1928-04-04 Loudspeaker system with a magnetically neutral armature rotating around its central axis
DEI35186D DE481259C (en) 1928-04-04 1928-08-10 Loudspeaker system with magnetically neutral armature rotating around its central axis
GB2539428A GB315140A (en) 1928-04-04 1928-09-04 Improvements in and relating to loud speakers
GB25393/28A GB309067A (en) 1928-04-04 1928-09-04 Improvements in and relating to loud speakers
US31418528 US1790437A (en) 1928-04-04 1928-10-22 munsch
FR668893D FR668893A (en) 1928-04-04 1929-02-02 Adjustable core speaker
CH137793D CH137793A (en) 1928-04-04 1929-02-09 Drive system with adjustable armature for loudspeaker.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI34064D DE471811C (en) 1928-04-04 1928-04-04 Loudspeaker system with a magnetically neutral armature rotating around its central axis

Publications (1)

Publication Number Publication Date
DE471811C true DE471811C (en) 1929-02-20

Family

ID=7188608

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI34064D Expired DE471811C (en) 1928-04-04 1928-04-04 Loudspeaker system with a magnetically neutral armature rotating around its central axis

Country Status (3)

Country Link
US (1) US1790437A (en)
DE (1) DE471811C (en)
GB (1) GB309067A (en)

Also Published As

Publication number Publication date
GB309067A (en) 1929-06-27
US1790437A (en) 1931-01-27

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