DE1091359B - Display device for the degree of wear of the stylus on record players - Google Patents

Display device for the degree of wear of the stylus on record players

Info

Publication number
DE1091359B
DE1091359B DEH37247A DEH0037247A DE1091359B DE 1091359 B DE1091359 B DE 1091359B DE H37247 A DEH37247 A DE H37247A DE H0037247 A DEH0037247 A DE H0037247A DE 1091359 B DE1091359 B DE 1091359B
Authority
DE
Germany
Prior art keywords
stylus
display device
wear
degree
record players
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.)
Pending
Application number
DEH37247A
Other languages
German (de)
Inventor
Bernd Haag
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEH37247A priority Critical patent/DE1091359B/en
Publication of DE1091359B publication Critical patent/DE1091359B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Description

Anzeigevorrichtung für den Abnutzungsgrad der Abtastnadel bei Plattenspielern Die Erfindung betrifft eine Anzeigevorrichtung für den Abnutzungsgrad der Abtastnadel bei Plattenspielern, welche, vom Antrieb des Plattenspielers angetrieben, auf einer Skala die Benutzungsdauer der Abtastnadel erkennen läßt. Die Abtastnadeln von Plattenspielern haben nur eine bestimmte Lebensdauer. Der am häufigsten gebrauchte Saphir ist z. B. etwa nach 100 Stunden Spieldauer an der Spitze stark abgeschliffen. Zur Kontrolle des Abnutzungsgrades der Nadel dient, wie bekannt, das Mikroskop. Da aber die meisten Besitzer von Schallplattengeräten kein Mikroskop zur Kontrolle im Haus haben, sind sie darauf angewiesen, diese Kontrolle anderweitig vornehmen zu lassen. Nach einer solchen Kontrolle müssen sie genau Buch führen über jede abgespielte Schallplatte, um die festgestellte Lebensdauer, die die Nadel noch hat, einzuhalten und nicht zu überschreiten. Da das sehr umständlich ist, wird es in den meisten Fällen auch unterlassen. Es ist ferner eine Einrichtung bekanntgeworden, bei der eine von dem Antrieb des Plattentellers angetriebene Zählvorrichtung auf einer Skala die Anzahl der Betriebsstunden erkennen läßt. Diese Einrichtung hat jedoch den Nachteil, daß der Benutzer aus Vergeßlichkeit oder Bequemlichkeit die Kontrolle vernachlässigt und somit nicht zu dem erforderlichen Zeitpunkt den Nadelwechsel vornimmt.Display device for the degree of wear of the stylus on record players The invention relates to a display device for the degree of wear of the stylus for turntables, which, driven by the drive of the turntable, on a Scale shows the usage time of the stylus. The stylus of turntables only have a certain lifespan. The most commonly used sapphire is z. B. after about 100 hours of playing time heavily sanded at the top. For control As is known, the microscope is used to determine the degree of wear and tear of the needle. But there most of them Owners of record devices do not have a microscope to check in their home they are instructed to have this control carried out elsewhere. After a such control they must keep a precise record of every record played, in order to maintain the established service life that the needle still has and not To exceed. Since this is very cumbersome, it will be in most cases fail. It has also become known a device in which one of the Drive the turntable driven counting device on a scale the number the operating hours can be recognized. However, this device has the disadvantage that the user neglects control out of forgetfulness or convenience and therefore does not change the needle at the required time.

Die Erfindung hat es sich zur Aufgabe gemacht, die Nachteile der bisherigenKontrolleinrichtungen zu vermeiden. Eine Saphirnadel kann in der Regel 100 Stunden spielen, ohne daß die Schallplatte merklich beschädigt wird. Von dieser Tatsache geht die Erfindung aus.The invention has set itself the task of avoiding the disadvantages of the previous control devices. A sapphire needle can usually play for 10 0 hours without noticeably damaging the record. The invention is based on this fact.

Erfindungsgemäß wird von der Anzeigevorrichtung nach Ablauf einer vorbestimmten Zeit der Motorschalter geöffnet. Die Anzeigevorrichtung kann ein mechanischer, vom Motor angetriebener Zähler sein, der bei einer Saphirnadel nach etwa 100 Stunden den Stromkreis des Antriebsmotors unterbricht. Oder sie kann ein Kilowattstundenzähler sein, der die Abnutzung der Nadel in Prozenten anzeigt und der ebenfalls das Gerät bei Endanzeige ausschaltet. Bei einer anderen Ab@tastnadel als Saphir würde sich die Zeit, nach welcher der Motor sich ausschaltet, entsprechend ändern.According to the invention of the display device after a the engine switch is opened for a predetermined time. The display device can be a mechanical, be motor-driven counter, the one with a sapphire needle after about 100 hours interrupts the electric circuit of the drive motor. Or it can be a kilowatt hour meter that shows the wear and tear of the needle as a percentage and that also the device switches off at the end of the display. Any other Ab @ probe than sapphire would be change the time after which the engine switches off accordingly.

Der Vorteil der Erfindung liegt darin, daß die Schallplatten nicht mehr durch unbrauchbar gewordene Nadeln zerstört werden können, auch wenn der Benutzer die Abtastnadel nicht überprüft.The advantage of the invention is that the records do not More can be destroyed by unusable needles, even if the user the stylus not checked.

Claims (1)

PATENTANSPRUCH: Anzeigevorrichtung für den Abnutzungsgrad der Abtastnadel bei Plattenspielern, welche, vom Antrieb des Plattenspielers angetrieben, auf einer Skala die Benutzungsdauer der Abtastnadel erkennen läßt, dadurch gekennzeichnet, daß die Anzegevorrichtung nach Ablauf einer vorbestimmten Zeit den Motorschalter öffnet. In Betracht gezogene Druckschriften: radio mentor, 1956, Nr. 4, S. 366 bis 369; Popular Mechanics Magazin, Verlag: Popular Mechanics Co., Chicago, USA., Vol. 112, Juli 1959, S.114.CLAIM OF THE PATENT: Display device for the degree of wear of the stylus for turntables, which, driven by the drive of the turntable, on a Scale shows the usage time of the stylus, characterized in that that the display device after a predetermined time the engine switch opens. Publications considered: radio mentor, 1956, No. 4, pp. 366 bis 369; Popular Mechanics Magazine, Publisher: Popular Mechanics Co., Chicago, USA., Vol. 112, July 1959, p.114.
DEH37247A 1959-08-22 1959-08-22 Display device for the degree of wear of the stylus on record players Pending DE1091359B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH37247A DE1091359B (en) 1959-08-22 1959-08-22 Display device for the degree of wear of the stylus on record players

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH37247A DE1091359B (en) 1959-08-22 1959-08-22 Display device for the degree of wear of the stylus on record players

Publications (1)

Publication Number Publication Date
DE1091359B true DE1091359B (en) 1960-10-20

Family

ID=7153269

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH37247A Pending DE1091359B (en) 1959-08-22 1959-08-22 Display device for the degree of wear of the stylus on record players

Country Status (1)

Country Link
DE (1) DE1091359B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322230C1 (en) * 1983-06-21 1984-05-24 Heinrich 7742 St. Georgen Zimmermann Testing device for pickup needles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322230C1 (en) * 1983-06-21 1984-05-24 Heinrich 7742 St. Georgen Zimmermann Testing device for pickup needles

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