DE877210C - Magnetic recorder - Google Patents

Magnetic recorder

Info

Publication number
DE877210C
DE877210C DES24183A DES0024183A DE877210C DE 877210 C DE877210 C DE 877210C DE S24183 A DES24183 A DE S24183A DE S0024183 A DES0024183 A DE S0024183A DE 877210 C DE877210 C DE 877210C
Authority
DE
Germany
Prior art keywords
magnetic
magnetic head
sound carrier
air
openings
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
DES24183A
Other languages
German (de)
Inventor
Allan Dr Darre
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.)
Siemens AG
Original Assignee
Siemens 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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES24183A priority Critical patent/DE877210C/en
Application granted granted Critical
Publication of DE877210C publication Critical patent/DE877210C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/62—Maintaining desired spacing between record carrier and head

Description

Bei Magnettongeräten -mit Magnettonträgern" welche als Folie ausgebildet sind, vor allem bei Bandspielern, hat sich die Schwierigkeit ergeben, daß durch Flattern des Bandes bzw. anders geformter. Magnettonträger vor den Magnetköpfen Störmadulätionen auftreten.In the case of magnetic sound devices - with magnetic sound carriers "which are designed as a film are, especially with tape players, the difficulty has arisen that through Flapping of the belt or other shaped. Magnetic sound carrier in front of the magnetic heads Disturbance adulations occur.

Erfindungsgemäß wird dieser Nachteil dadurch vermieden, daß der Magnettonträger in der Nähe des Luftspaltes eines Magnetkopfes einer pneumatischen Druck- oder Saugwirkung ausgesetzt ist, welche ein glattes Anliegen des Tonträgers auf dem Magnetkopf bzw: einer dem Magnetkopf benachbarten@ Führung bewirkt.According to the invention, this disadvantage is avoided in that the magnetic sound carrier near the air gap of a magnetic head of a pneumatic pressure or suction effect which is a smooth application of the sound carrier on the magnetic head or: a guide adjacent to the magnetic head.

Eine besonders zweckmäßige Ausbildung der Einrichtung nach der Erfindung besteht darin, daß der Magnetkopf bzw. sein Gehäuse selbst längs der Gleitfläche :des Magnettonträgers mit Öffnungen versehen ist und Mittel vorgesehen sind, welche in diesen Öffnungen eine pneumatische Saugwirkung hervorrufen.A particularly useful embodiment of the device according to the invention consists in that the magnetic head or its housing itself along the sliding surface : the magnetic sound carrier is provided with openings and means are provided which create a pneumatic suction effect in these openings.

In der Zeichnung -ist eine Ausführungsform der Einrichtung nach der Erfindung beispielsweise dargestellt.In the drawing -is an embodiment of the device according to the Invention shown for example.

U sind die Pole eines Magnetkopfes, der zum Aufsprechen; Wiedergeben oder Löschen dient. Erfindungsgemäß ist die Polanordnung des Magnetkopfes von einem mit Öffnungen L versehenen, im übrigen aber luftdichten Gehäuse G umgeben. Ein Pumpstutzen P führt vorn Gehäuse G zu einer Luftpumpe. Es sind Mittel vorgesehen, welche bewirken; daß sich die Pumpe automatisch dann einschaltet,- sobald das Bandlaufwerk in Tätigkeit tritt und/oder :der Magnetkopf elektrisch eingeschaltet wird.U are the poles of a magnetic head that is used for recording; Play back or delete. According to the invention, the pole arrangement of the magnetic head is one Enclosed with openings L, but otherwise airtight housing G. A pump nozzle P leads in front of housing G to an air pump. Means are provided which effect; that the pump turns on automatically - as soon as the tape drive is in operation occurs and / or: the magnetic head is switched on electrically.

Die Wirkungsweise der Einrichtung besteht darin, daß das. Magnettonband B durch Saug-Wirkung an die Öffnungen L und damit an die Führungsunterlage F des Magnetkopfgehäuses angepreßt wird, wodurch jegliches Flattern des Bandes vermieden wird.The mode of operation of the device is that the magnetic tape B by suction to the openings L and thus to the guide pad F des Magnetic head housing is pressed, thereby avoiding any flutter of the tape will.

Die Erfindung ist nicht auf das Ausführungsbeispiel beschränkt. Unter Umständen können die Pole des Magnetkopfes selbst ganz oder teilweise als Gehäusewände ausgebildet sein und dementsprechend mit Perforationslöchern versehen sein. An die Stelle der Saugwirkung kann auch eine pneumatische Druckwirkung treten, die von Düsen auf das Band ausgeübt wird, welche dem Magnetkopf gegenüber auf der anderen Seite des Bandes angeordnet sind.The invention is not restricted to the exemplary embodiment. Under Under certain circumstances, the poles of the magnetic head themselves can be used in whole or in part as housing walls be designed and accordingly be provided with perforation holes. To the Instead of the suction effect, a pneumatic pressure effect can also occur, which is generated by Nozzles exerted on the tape which face the magnetic head on the other Side of the tape are arranged.

Claims (5)

PATENTANSPRÜCHE: i. Magnettongerät mit vorzugsweise bandförmigem Magnettonträger, dadurch gekennzeichnet, @daß der Magnettonträger in der Nähe ,des Luftspaltes einer pneumatischen Druck-oder Saugwirkung ausgesetzt ist. PATENT CLAIMS: i. Magnetic sound device with preferably tape-shaped magnetic sound carrier, characterized in that @ that the magnetic sound carrier in the vicinity, the air gap one is exposed to pneumatic pressure or suction. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß der Magnetkopf und/oder sein Gehäuse längs der Gleitfläche des Magnettonträgers mit Öffnungen versehen ist und Mittel vorgesehen sind, welche in diesen Öffnungen eine pneumatische Saugwirkung hervorrufen. 2. Device according to claim i, characterized in that the magnetic head and / or its housing along the sliding surface of the magnetic sound carrier is provided with openings and means are provided which create a pneumatic suction effect in these openings. 3. Einrichtung nach Ansprüchen i und 2, dadurch gekennzeichnet, daß der Magnetkopf bzw. sein. 3. Set up after Claims i and 2, characterized in that the magnetic head or. Gehäuse luftdicht abgeschlossen und mit einem Pumpstutzen versehen ist, der zu einer Luftpumpe führt. ¢ Einrichtung nach Anspruch T, dadurch gekennzeichnet, daß dem Magnetkopf gegenüber auf der anderen Seite des Tonträgers eine Blaseinrichtung angeordnet ist, welche den Magnettonträger gegen entsprechende Gleitflächen preßt. casing is hermetically sealed and provided with a pump nozzle that leads to an air pump leads. ¢ Device according to claim T, characterized in that the magnetic head a blowing device is arranged opposite on the other side of the sound carrier, which presses the magnetic sound carrier against corresponding sliding surfaces. 5. Einrichtung nach einem der Ansprüche i bis q., dadurch gekennzeichnet, :daß der zur Erzeugung des Luftdrucks oder Luftunterdrucks verwendete Luftpumpenantrieb selbsttätig dann einschaltbar ist, sobald das Bandlaufwerk in Tätigkeit tritt und/oder der Magnetkopf elektrisch eingeschaltet wird.5. Establishment according to one of claims i to q., characterized in that: that for generating of the air pressure or air vacuum then used the air pump drive automatically Can be switched on as soon as the tape drive comes into operation and / or the magnetic head is switched on electrically.
DES24183A 1951-07-29 1951-07-29 Magnetic recorder Expired DE877210C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES24183A DE877210C (en) 1951-07-29 1951-07-29 Magnetic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES24183A DE877210C (en) 1951-07-29 1951-07-29 Magnetic recorder

Publications (1)

Publication Number Publication Date
DE877210C true DE877210C (en) 1953-05-21

Family

ID=7477739

Family Applications (1)

Application Number Title Priority Date Filing Date
DES24183A Expired DE877210C (en) 1951-07-29 1951-07-29 Magnetic recorder

Country Status (1)

Country Link
DE (1) DE877210C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1026983B (en) * 1955-12-09 1958-03-27 Ibm Deutschland Recording and scanning device for magnetically or electrically influenceable recording media
US2921144A (en) * 1956-02-06 1960-01-12 Ibm Transducer support for sound recording or reproducing system
US2998495A (en) * 1958-03-26 1961-08-29 Ampex Recording and reproducing high frequencies transversely on a magnetic tape
DE1921090C3 (en) * 1969-04-25 1972-11-02 Assmann Gmbh Wolfgang Magnetic tape pressure and magnetic tape monitoring device
DE2944429A1 (en) * 1979-11-03 1981-05-14 Robert Bosch Gmbh, 7000 Stuttgart Magnetic tape recorder for broadband signals - has manual air pump producing cushion during starting for tape wound around stationary drum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1026983B (en) * 1955-12-09 1958-03-27 Ibm Deutschland Recording and scanning device for magnetically or electrically influenceable recording media
US2921144A (en) * 1956-02-06 1960-01-12 Ibm Transducer support for sound recording or reproducing system
US2998495A (en) * 1958-03-26 1961-08-29 Ampex Recording and reproducing high frequencies transversely on a magnetic tape
DE1921090C3 (en) * 1969-04-25 1972-11-02 Assmann Gmbh Wolfgang Magnetic tape pressure and magnetic tape monitoring device
DE2944429A1 (en) * 1979-11-03 1981-05-14 Robert Bosch Gmbh, 7000 Stuttgart Magnetic tape recorder for broadband signals - has manual air pump producing cushion during starting for tape wound around stationary drum

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