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 axisInfo
- 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
Links
- 230000007935 neutral effect Effects 0.000 title claims description 4
- 238000003801 milling Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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)
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 |
GB25393/28A GB309067A (en) | 1928-04-04 | 1928-09-04 | Improvements in and relating to loud speakers |
GB2539428A GB315140A (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) |
-
1928
- 1928-04-04 DE DEI34064D patent/DE471811C/en not_active Expired
- 1928-09-04 GB GB25393/28A patent/GB309067A/en not_active Expired
- 1928-10-22 US US31418528 patent/US1790437A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB309067A (en) | 1929-06-27 |
US1790437A (en) | 1931-01-27 |
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