EP1859435A1 - Device and method for adjusting the tension of a string of a stringed instrument - Google Patents

Device and method for adjusting the tension of a string of a stringed instrument

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Publication number
EP1859435A1
EP1859435A1 EP05716155A EP05716155A EP1859435A1 EP 1859435 A1 EP1859435 A1 EP 1859435A1 EP 05716155 A EP05716155 A EP 05716155A EP 05716155 A EP05716155 A EP 05716155A EP 1859435 A1 EP1859435 A1 EP 1859435A1
Authority
EP
European Patent Office
Prior art keywords
string
bore
sleeve
tension
adjusting
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.)
Granted
Application number
EP05716155A
Other languages
German (de)
French (fr)
Other versions
EP1859435B1 (en
Inventor
Christopher Adams
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.)
Tectus Anstalt
Original Assignee
Tectus Anstalt
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 Tectus Anstalt filed Critical Tectus Anstalt
Publication of EP1859435A1 publication Critical patent/EP1859435A1/en
Application granted granted Critical
Publication of EP1859435B1 publication Critical patent/EP1859435B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
    • G10G7/00—Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings
    • G10G7/02—Tuning forks or like devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
    • G10D3/14—Tuning devices, e.g. pegs, pins, friction discs or worm gears
    • G10D3/147—Devices for altering the string tension during playing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/44—Tuning means

Definitions

  • the invention relates to a method and a device for adjusting the tension of a fixed with a first end to a mounting block and a second end to a further attachment side of a stringed instrument.
  • the string of a stringed instrument is fixed rigidly with one of its two ends, the second end of the string runs on a spindle or a similar element and can be played by unwinding or unwinding. be stretched so as to obtain the right tuning of the string.
  • the stringed instrument can also be tuned automatically, i. by means of a control that controls a drive for changing the string tension due to a detected actual sound of the struck string compared with a desired tone
  • a control that controls a drive for changing the string tension due to a detected actual sound of the struck string compared with a desired tone
  • known ways to adjust the string tension are not always suitable.
  • a guitar in particular an electric guitar, or an electric bass, sitting the so-called tuners or the vertebrae for tensioning or relaxing the strings on the so-called head of the instrument and thus a comparatively small part of the same.
  • tuners or the vertebrae for tensioning or relaxing the strings on the so-called head of the instrument and thus a comparatively small part of the same.
  • the peculiarity of the novel method for adjusting the tension of a string of a stringed instrument or the inventive device is that no mechanism for winding the string is used, but instead with a pressurized pressure medium, for example.
  • a fluid is working.
  • This pressure means engages a holding portion on which a first end of the string is applied, and moves this holding portion and thus the fixed end of the string in a mounting block so that the tension of the string changes.
  • a pressure medium preferably a fluid, in particular a hydraulic fluid
  • a pressure reservoir in order to set the string tension pressure-controlled and precisely.
  • Such a procedure is particularly well suited for use in a device for automatic tuning of a stringed instrument, for example a guitar, wherein a supply or removal of pressure medium for increasing or decreasing the string tension of a controller after changing the frequency of the String actually generated tones is driven by a predetermined frequency of a target sound.
  • the sleeve used according to the invention results in interaction with the bore, in which it is inserted. is set, a similar effect as a piston in a cylinder, so that it can be moved by means of the pressure medium or when relaxing by means of the string tension in a simple manner in the hole in the block and so the string tensioned or relaxed.
  • This solution is particularly suitable for guitars, especially for electric guitars and electric basses.
  • the strings with one end m fixed a block in the case of electric guitars sometimes in a tremolo system block set.
  • Such a block usually has holes anyway, in which the strings are guided with one end, usually with a deflection of about 90 °.
  • the possibility of an "automatic" string adjustment is created in a simple manner, without significantly changing the instrument itself.
  • the m claim 4 specified serves to facilitate the setting of the string ends m of the sleeve.
  • the strings typically have thickenings at their end fixed to the body, so-called ball ends, with which the string ends can m the extended portion of the bore of the sleeve be determined.
  • the sleeve as stated in claim 5, made of a piezoelectric ceramic material, it can be used advantageously as a pickup at the same time. With it, the vibrations of the string lying there can be detected and by the piezoelectric property of the ceramic be converted into electrical signals. These electrical signals can then be either amplified directly and used as acoustic signals, but they can also act as control signals to control, for example, midi functions. Finally, these signals can also be used to supply a device for automatic tuning of a stringed instrument claimed in claim 6 with information about the currently detected frequency of the vibrating string, which information is then compared with the desired frequency and finally the calculation of the required further tension or relaxation of the string is used.
  • FIG. 1 shows schematically a view of an electric guitar as an example of a stringed instrument with a device according to the invention
  • FIG. 2 is an enlarged schematic representation of the body of the electric guitar of FIG. 1,
  • FIG. 3 a-d show, in different views, a tremolo system block equipped according to the invention of the guitar shown in FIG. 1 and FIG. 2,
  • FIG. 4 shows a tremolo system block as in FIG. 3 with mounted tabs, one of the tabs being shown in exploded view
  • FIG Fig. 5 shows a detail of the body 'of the guitar with attached and held by tension springs Tremolo system block.
  • an " electric guitar 1” is generally shown, which can be roughly subdivided into a body 2, a neck 3 and a head 4.
  • the body 2 is a mounting block, in this electric guitar 1 a tremolo - System block 5 is attached, which contains the present invention and will therefore be described in more detail later.
  • the strings extend 6a to 6f, which accumulate on the head 4 on vertebrae 7, wherein the vertebrae 7 can be adjusted via wings 8.
  • a pick-guard 9 is arranged on the body 2 of the electric guitar 1.
  • Fig. 2 the body 2 of the electric guitar 1 is shown enlarged.
  • a control chip 10 to be explained in more detail later as well as pickups 12 (so-called pickups) can be recognized.
  • lines 14 can be seen, via which the control chip 10 is connected to the tremolo system block 5, which will be discussed in more detail later on this connection.
  • FIG. 3a the tremolo system block 5 in a three-dimensional view, in Fig. 3b in a plan view, in Fig. 3c in a sectional view along the section line AA of Fig. 3b and in FIG. 3d is shown in a sectional view taken along the section line BB from FIG. 3d.
  • the tremolo system block 5 has a total of six holes 11 in which the strings 6a to ⁇ f can be fixed in a manner to be described later.
  • the bores 11 have a section 11a enlarged in diameter in a section shown in FIG. 3c below.
  • sleeves 13 are arranged longitudinally displaceable.
  • the sleeves 13 each have an enlarged head 13a.
  • the outer diameter of the widened head 13a corresponds to the inner diameter of the portion IIa of the bore 11; the outer diameter of the remaining sleeve 13 corresponds to the diameter of the remaining bore 11.
  • annular space 17 is formed between the transitions of the widened head 13a to the remaining sleeve 13 and the portion IIa of the bore 11 to the remaining bore 11.
  • a supply line 18 in the form of a tap hole.
  • a pressure medium in the preferred exemplary embodiment a hydraulic fluid, can be introduced into the annular space 17.
  • an inner bore 19 is guided, which in the region of the widened head 13a of the sleeve 13 has an expanded inner diameter (section 19a).
  • further sleeves 20, which are not relevant to the invention and are used from other aspects, can be seen which are firmly seated in the bores 11 on the section of the tremolo system block 5 shown in FIG. 3c. These sleeves serve to insulate the strings passed through the sleeves 13 from the metal material of the tremolo system block 5. This insulation is used in certain applications. Training traps required, especially if the strings 6a to ⁇ f to be used as electrical conductors.
  • the strings ⁇ a to ⁇ f with a thickening at one end (the so-called ball end) in the extended portion 19a of the bore in the sleeve 13 are fixed.
  • the strings are then further guided through the bore 19 in the respective sleeve 13 and then out through the further, fixed sleeve 20 from the tremolo system block 5 out. There they are guided via tab 21 shown in FIG. 4 and from there via the neck 3 to the head 4 of the electric guitar 1. There they run on the vortex 7.
  • the sleeves 13 in the holes 11 of the tremolo system block 5 are held in position by hydraulic fluid in the annular space 17.
  • the pressure of the hydraulic fluid exerted on the sleeve 13 is in equilibrium with the force exerted by the string or its tension.
  • Hydraulic fluid is preferably used from a hydraulic fluid storage element which can readily be arranged in the body 2 of the guitar 1, in particular without changing the geometry or the material of the guitar, thus also without milling and other material cutouts. In this case, all that is required is a corresponding valve circuit, which is correctly controlled for tensioning and relaxing the guitar soles.
  • a unit dual-chamber system which can be actively loaded with hydraulic fluid in both directions, ie for clamping as well as for relaxing.
  • the total length of the sleeve 13 is longer than the length of the extended portion IIa of the bore 11, so that here in the state of maximum string tension of the annular space 17 is sealed against the remaining bore 11 and no hydraulic fluid from the annulus 17 can escape unchecked.
  • this system is integrated into a device for automatic tuning of the guitar for adjusting the tension of the strings.
  • the control chip 10 shown in FIG. 2 is used.
  • this control chip 10 a target value for the frequency of a fundamental of each string is stored.
  • this control chip 10 is connected to, for example, the pickups 12 in order to be able to detect the current frequency of the fundamental vibration of the strings.
  • the control chip 10 calculates a measure by which the respective string is to be tensioned or relaxed and controls the valve for the stub line 18 assigned to this string accordingly, so that over an inflow or outflow of the hydraulic fluid, a respective adaptation of the tension of the respective string can be made.
  • piezo elements introduced separately in the tremolo system block 5 or else the sleeves 13 themselves, if they consist of a piezoelectric ceramic material, can also be used.
  • ⁇ al be used as an element for detecting the actual value of the frequency of the string.
  • a section of the body 2 of the electric guitar 1 is shown from behind or below.
  • the tremolo system block 5 is held in the balance by means of three springs 22 which can be adjusted by means of corresponding actuators 23 m of their tension exerted on the tremolo system block 5.
  • hydraulic adjustment In the context of an exploitable independent of the present invention technical development, it is conceivable by hydraulic or pneumatic cylinder or otherwise activated with a pressure medium, the spring tension of the individual, the tremolo system block 5 m of a balance holding springs to change.

Abstract

The present invention describes a simple and effective method and a device for adjusting the tension of the string of a string instrument in which a holding section that is displaceable in or on the mounting block in relation to the latter and on which the first end of the string is attached is displaced by action of a hydraulic medium which is under a preselectable pressure for tightening or relaxing the string.

Description

Vorrichtung und Verfahren zum Verstellen der Spannung einer Saite eines Saiteninstrumentes Device and method for adjusting the tension of a string of a stringed instrument
Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Verstellen der Spannung einer mit einem ersten Ende an einem Befestigungsblock und mit einem zweiten Ende an einer weiteren Befestigung festgelegten Seite eines Saiteninstrumentes .The invention relates to a method and a device for adjusting the tension of a fixed with a first end to a mounting block and a second end to a further attachment side of a stringed instrument.
Zum korrekten Stimmen von Saiteninstrumenten ist es erforderlich, die bei diesen Instrumenten zwischen zwei Befesti^ gungspunkten gespannten Saiten in ihrer Spannung exakt einzustellen, so dass sich beim Anschlagen der Saite eine stehende Welle der richtigen Frequenz ausbildet und somit der gewünschte Ton erzeugt wird.For correct tuning of stringed instruments, it is necessary to adjust the tension of these instruments between two mounting points in their tension exactly, so that when struck the string forms a standing wave of the correct frequency and thus the desired tone is generated.
Üblicherweise ist hierzu die Saite eines Saiteninstrumentes mit einem ihrer beiden Enden starr festgelegt, das zweite Ende der Saite läuft auf einer Spindel oder einem ähnlichen Element auf und kann durch Auf- bzw. Abwickeln ge- bzw. ent- spannt werden, um so die richtige Stimmung der Saite zu erlangen.Usually, for this purpose, the string of a stringed instrument is fixed rigidly with one of its two ends, the second end of the string runs on a spindle or a similar element and can be played by unwinding or unwinding. be stretched so as to obtain the right tuning of the string.
Insbesondere jedoch dann, wenn das Saiteninstrument auch automatisch gestimmt werden können soll, d.h. mittels einer Steuerung, die aufgrund eines erfassten Ist-Tones der angeschlagenen Saite im Vergleich desselben mit einem Soll-Ton einen Antrieb zur Veränderung der Saitenspannung ansteuert, sind solche, bekannten Möglichkeiten zum Verstellen der Saitenspannung nicht immer geeignet. Zum Beispiel bei einer Gitarre, insbesondere einer E-Gitarre, bzw. einem E-Bass, sitzen die so genannten Mechaniken bzw. die Wirbel zum Spannen bzw. Entspannen der Saiten am so genannten Kopf des Instrumentes und damit an einem vergleichsweise kleinen Teil desselben. Zwar gibt es grundsätzliche Möglichkeiten, auch hier einen motorischen Antrieb zum Einstellen der Saitenspannung anzubringen, allerdings ist es sehr schwierig bis nahezu unmöglich, die gesamte Steuerung für ein System zum automatischen Stimmen der Gitarre bzw. des E-Basses an diesem Teil des Instrumentes anzuordnen. Insoweit ist es erstrebenswert, nach alternativen Möglichkeiten zum Verstellen der Spannung einer Saite eines Saiteninstrumentes zu suchen.In particular, however, if the stringed instrument can also be tuned automatically, i. by means of a control that controls a drive for changing the string tension due to a detected actual sound of the struck string compared with a desired tone, such known ways to adjust the string tension are not always suitable. For example, in a guitar, in particular an electric guitar, or an electric bass, sitting the so-called tuners or the vertebrae for tensioning or relaxing the strings on the so-called head of the instrument and thus a comparatively small part of the same. While there are some basic ways to provide a motorized drive for adjusting the tension of the strings here as well, it is very difficult, if not impossible, to arrange the entire control of a system for automatically tuning the guitar or bass on that part of the instrument. In that regard, it is desirable to look for alternative ways to adjust the tension of a string of a stringed instrument.
Eine solche Alternative wird hinsichtlich eines Verfahrens zum Verstellen der Spannung einer mit einem ersten Ende in einem Befestigungsblock und mit einem zweiten Ende an einer weiteren Befestigung festgelegten Saite eines Saiteninstrumentes mit einem in dem nachfolgenden Patentanspruch 1 angegebenen Verfahren gegeben. Hinsichtlich einer Vorrichtung ist eine dieses Ziel verwirklichende Vorrichtung im Patentanspruch 2 beschrieben. Vorteilhafte Weiterbildungen der Vorrichtung sind in den Patentansprüchen 3 bis 5 angegeben. In Anspruch 6 ist schließlich eine Vorrichtung zum automatischen Stimmen wenigstens einer Saite eines Saiteninstrumen- tes angegeben, welche eine neuartige Vorrichtung zum Verstellen der Spannung einer Saite eines Saiteninstrumentes gemäß der Erfindung verwendet.Such an alternative is given in terms of a method for adjusting the tension of a string of a stringed instrument fixed to a first end in a mounting block and having a second end attached to another fastener, with a method as set forth in claim 1 below. With regard to a device, a device realizing this goal is described in claim 2. Advantageous developments of the device are specified in the claims 3 to 5. Finally, in claim 6, a device for automatically tuning at least one string of a string instrument is provided. Stes which uses a novel device for adjusting the tension of a string of a stringed instrument according to the invention.
Erfindungsgemaß liegt die Besonderheit des neuartigen Verfahrens zum Verstellen der Spannung einer Saite eines Saiteninstrumentes bzw. der erfmdungsgemaßen Vorrichtung darin, dass keine Mechanik zum Aufwickeln der Saite verwendet wird, sondern statt dessen mit einem unter Druck stehenden Druckmittel, bspw. einem Fluid, gearbeitet wird. Dieses Druckmittel greift an einem Halteabschnitt, an welchem ein erstes Ende der Saite angelegt ist, an und verschiebt diesen Halteabschnitt und damit das darin festliegende Saitenende in einem Befestigungsblock so, dass sich die Spannung der Saite ändert.According to the invention, the peculiarity of the novel method for adjusting the tension of a string of a stringed instrument or the inventive device is that no mechanism for winding the string is used, but instead with a pressurized pressure medium, for example. A fluid is working. This pressure means engages a holding portion on which a first end of the string is applied, and moves this holding portion and thus the fixed end of the string in a mounting block so that the tension of the string changes.
Der Einsatz eines Druckmittels, vorzugsweise eines Fluids, insbesondere einer Hydraulikflussigkeit, erlaubt ein automatisches Einstellen der Saitenspannung ohne Einsatz irgendwelcher Stellmotoren. Stattdessen kann bspw. mit in einem Druckreservoir vorhandener Hydraulikflussigkeit gearbeitet werden, um druckgesteuert und präzise die Saitenspannung einzustellen. Ein solches Vorgehen eignet sich besonders gut zum Einsatz in einer Vorrichtung zum automatischen Stimmen eines Saiteninstrumentes, bspw. einer Gitarre, wobei eine Zufuhr bzw. Abfuhr von Druckmittel zum Erhohen bzw. Erniedrigen der Saitenspannung von einer Steuerung ]e nach Abweichen der Frequenz des von der Saite tatsächlich erzeugten Tones von einer vorgegebenen Frequenz eines Soll-Tones angesteuert wird.The use of a pressure medium, preferably a fluid, in particular a hydraulic fluid, allows automatic adjustment of the string tension without the use of any servomotors. Instead, it is possible, for example, to work with hydraulic fluid present in a pressure reservoir in order to set the string tension pressure-controlled and precisely. Such a procedure is particularly well suited for use in a device for automatic tuning of a stringed instrument, for example a guitar, wherein a supply or removal of pressure medium for increasing or decreasing the string tension of a controller after changing the frequency of the String actually generated tones is driven by a predetermined frequency of a target sound.
Eine mögliche Verwirklichung der erfmdungsgemaßen Vorrichtung ist m der m Anspruch 3 genannten, vorteilhaften Weiterbildung angegeben. Die erfindungsgemaß eingesetzte Hülse ergibt im Zusammenspiel mit der Bohrung, m welcher sie ein- gesetzt ist, einen ahnlichen Effekt wie ein Kolben in einem Zylinder, so dass sie mittels des Druckmittels bzw. beim Entspannen mittels des Saitenzuges auf einfache Weise in der Bohrung in dem Block verschoben werden kann und so die Saite spannt bzw. entspannt. Besonders geeignet ist diese Losung für Gitarren, insbesondere für E-Gitarren sowie für E-Basse. Dort sind am Korpus des Instrumentes die Saiten mit einem Ende m einem Befestigungsblock, im Falle von E-Gitarren bisweilen auch in einem Tremolo-Systemblock, festgelegt. Ein solcher Block weist üblicherweise ohnehin Bohrungen auf, in die die Saiten mit einem Ende gefuhrt sind, üblicherweise unter einer Umlenkung von etwa 90°. Hier lasst sich ohne großen Aufwand ein herkömmlicher Block durch einen mit den erfmdungsgemaßen Hülsen ausgerüsteten und mit entsprechend erweiterten Bohrungen versehenen Block austauschen, ohne dass das Instrument schwerwiegende Veränderung erfahrt. So wird auf einfache Weise die Möglichkeit einer „automatischen" Saitenverstellung geschaffen, ohne das Instrument selbst wesentlich zu verandern.One possible realization of the device according to the invention is indicated in m claim 3, advantageous development. The sleeve used according to the invention results in interaction with the bore, in which it is inserted. is set, a similar effect as a piston in a cylinder, so that it can be moved by means of the pressure medium or when relaxing by means of the string tension in a simple manner in the hole in the block and so the string tensioned or relaxed. This solution is particularly suitable for guitars, especially for electric guitars and electric basses. There are at the body of the instrument, the strings with one end m fixed a block, in the case of electric guitars sometimes in a tremolo system block set. Such a block usually has holes anyway, in which the strings are guided with one end, usually with a deflection of about 90 °. Here you can easily replace a conventional block with a equipped with the inventive sleeves and provided with correspondingly enlarged holes block without the instrument experience serious change. Thus, the possibility of an "automatic" string adjustment is created in a simple manner, without significantly changing the instrument itself.
Die m Anspruch 4 angegebene Weiterbildung dient einer Erleichterung des Festlegens der Saitenenden m der Hülse. Beispielsweise bei Gitarren, insbesondere E-Gitarren und bei E-Bassen weisen die Saiten an ihrem an dem Korpus festgelegten Ende typischerweise Verdickungen, so genannte „ball ends" auf. Mit diesen können die Saitenenden dann m dem erweiterten Abschnitt der m der Hülse geführten Bohrung festgelegt werden.The m claim 4 specified serves to facilitate the setting of the string ends m of the sleeve. For example, in guitars, especially electric guitars and e-basses, the strings typically have thickenings at their end fixed to the body, so-called ball ends, with which the string ends can m the extended portion of the bore of the sleeve be determined.
Ist die Hülse, wie in Anspruch 5 angegeben, aus einem piezoelektrischen Keramikmaterial gefertigt, kann sie in vorteilhafter Weise zugleich als Tonabnehmer genutzt werden. Mit ihr können die Schwingungen der dort anliegenden Saite er- fasst und durch die piezoelektrische Eigenschaft der Keramik in elektrische Signale umgesetzt werden. Diese elektrischen Signale können dann entweder unmittelbar zur Verstärkung gebracht und als akustische Signale genutzt werden, sie können aber auch als Steuersignale fungieren, um bspw. midi- Funktionen ansteuern. Schließlich können diese Signale auch genutzt werden, um eine in Anspruch 6 beanspruchte Vorrichtung zum automatischen Stimmen eines Saiteninstrumentes mit Informationen über die aktuell erfasste Frequenz der schwingenden Saite zu versorgen, welche Informationen dann dem Ab- gleich mit der Soll-Frequenz und schließlich der Errechnung der erforderlichen weiteren Spannung bzw. Entspannung der Saite dient.If the sleeve, as stated in claim 5, made of a piezoelectric ceramic material, it can be used advantageously as a pickup at the same time. With it, the vibrations of the string lying there can be detected and by the piezoelectric property of the ceramic be converted into electrical signals. These electrical signals can then be either amplified directly and used as acoustic signals, but they can also act as control signals to control, for example, midi functions. Finally, these signals can also be used to supply a device for automatic tuning of a stringed instrument claimed in claim 6 with information about the currently detected frequency of the vibrating string, which information is then compared with the desired frequency and finally the calculation of the required further tension or relaxation of the string is used.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus dem nachfolgend anhand der beigefugten Figuren geschilderten Ausfuhrungsbeispiel. In der nachfolgenden Beschreibung und m den Figuren ist die Erfindung anhand einer Verwirklichung einer E-Gitarre beschrieben, wobei die Erfindung grundsätzlich nicht auf dieses besondere Saiteninstrument beschrankt, sondern prinzipiell bei allen bekannten Saiteninstrumenten anwendbar ist. In den Figuren zeigen:Further features and advantages of the invention will become apparent from the following with reference to the accompanying figures described exemplary embodiment. In the following description and m the figures, the invention is described with reference to an implementation of an electric guitar, the invention is not limited in principle to this particular stringed instrument, but in principle is applicable to all known stringed instruments. In the figures show:
Fig. 1 schematisch eine Ansicht einer E-Gitarre als Beispiel für ein Saiteninstrument mit einer erfin- dungsgemaßen Vorrichtung,1 shows schematically a view of an electric guitar as an example of a stringed instrument with a device according to the invention,
Fig. 2 eine vergrößerte schematische Darstellung des Korpus der E-Gitarre aus Fig. 1,2 is an enlarged schematic representation of the body of the electric guitar of FIG. 1,
Fig. 3 a-d in verschiedenen Ansichten einen erfmdungsge- maß ausgerüsteten Tremolo-Systemblock der m Fig. 1 und Fig. 2 dargestellten Gitarre,3 a-d show, in different views, a tremolo system block equipped according to the invention of the guitar shown in FIG. 1 and FIG. 2,
Fig. 4 einen Tremolo-Systemblock wie m Fig. 3 mit aufgesetzten Reitern, wobei einer der Reiter in Explo- sionsdarstellung gezeigt ist und Fig. 5 einen Ausschnitt des Korpus' der Gitarre mit angesetztem und von Spannfedern gehaltenem Tremolo- Systemblock.4 shows a tremolo system block as in FIG. 3 with mounted tabs, one of the tabs being shown in exploded view, and FIG Fig. 5 shows a detail of the body 'of the guitar with attached and held by tension springs Tremolo system block.
In den Figuren ist ein Ausführungsbeispiel für eine erfindungsgemäße Vorrichtung in einer E-Gitarre gezeigt. Gleiche Elemente sind dabei mit gleichen Bezugszeichen versehen.In the figures, an embodiment of an inventive device in an electric guitar is shown. The same elements are provided with the same reference numerals.
Zunächst ist in den Figuren 1 und 2 allgemein eine "E-Gitarre 1 dargestellt. Diese lässt sich grob unterteilen in einen Korpus 2, einen Hals 3 sowie einen Kopf 4. Am Korpus 2 ist als Befestigungsblock; bei dieser E-Gitarre 1 ein Tremolo- Systemblock 5 angebracht, welcher die vorliegende Erfindung enthält und deshalb später eingehender beschrieben wird.1 and 2, an " electric guitar 1 " is generally shown, which can be roughly subdivided into a body 2, a neck 3 and a head 4. The body 2 is a mounting block, in this electric guitar 1 a tremolo - System block 5 is attached, which contains the present invention and will therefore be described in more detail later.
Ausgehend von dem Tremolo-Systemblock 5 erstrecken sich die Saiten 6a bis 6f, welche am Kopf 4 auf Wirbel 7 auflaufen, wobei die Wirbel 7 über Flügel 8 verstellt werden können. Unter den Saiten βa bis βf ist am Korpus 2 der E-Gitarre 1 ein pick-guard 9 angeordnet.Starting from the tremolo system block 5, the strings extend 6a to 6f, which accumulate on the head 4 on vertebrae 7, wherein the vertebrae 7 can be adjusted via wings 8. Among the strings βa to βf, a pick-guard 9 is arranged on the body 2 of the electric guitar 1.
In Fig. 2 ist vergrößert der Korpus 2 der E-Gitarre 1 dargestellt. Hier sind zusätzlich ein später näher zu erläuternder Steuerchip 10 sowie Tonabnehmer 12 (so genannte pickups) zu erkennen. Ferner sind Leitungen 14 zu erkennen, über welche der Steuerchip 10 mit dem Tremolo-Systemblock 5 verbunden ist, wobei auf diese Verbindung später näher eingegangen werden wird.In Fig. 2, the body 2 of the electric guitar 1 is shown enlarged. Here, in addition, a control chip 10 to be explained in more detail later as well as pickups 12 (so-called pickups) can be recognized. Further, lines 14 can be seen, via which the control chip 10 is connected to the tremolo system block 5, which will be discussed in more detail later on this connection.
In den Fign. 3a bis d ist in verschiedenen Ansichten der Tremolo-Systemblock 5 näher dargestellt. Dieser Tremolo- Systemblock 5 enthält die Erfindung. In Fig. 3a ist der Tremolo-Systemblock 5 in einer dreidimensionalen Ansicht, in Fig. 3b in einer Draufsicht, in Fig. 3c in einer geschnittenen Ansicht entlang der Schnittlinie A-A aus Fig. 3b und in Fig. 3d in einer entlang der Schnittlinie B-B aus Fig. 3d genommenen Schnittdarstellung dargestellt.In the Fign. 3a to d are shown in different views of the tremolo system block 5 in more detail. This Tremolo system block 5 contains the invention. In Fig. 3a, the tremolo system block 5 in a three-dimensional view, in Fig. 3b in a plan view, in Fig. 3c in a sectional view along the section line AA of Fig. 3b and in FIG. 3d is shown in a sectional view taken along the section line BB from FIG. 3d.
In den Fign. 3a bis 3d ist zu erkennen, dass der Tremolo- Systemblock 5 insgesamt sechs Bohrungen 11 aufweist, in welchen die Saiten 6a bis βf in spater naher zu beschreibender Weise festgelegt werden können. Die Bohrungen 11 haben in einem in Fig. 3c unten dargestellten Abschnitt einen im Durchmesser erweiterten Abschnitt IIa. In den Bohrungen 11 sind Hülsen 13 längs verschiebbar angeordnet. Die Hülsen 13 weisen jeweils einen erweiterten Kopf 13a auf. Der Außendurchmesser des erweiterten Kopfes 13a entspricht dem Innendurchmesser des Abschnittes IIa der Bohrung 11; der Außendurchmesser der restlichen Hülse 13 entspricht dem Durchmesser der restlichen Bohrung 11. Auf diese Weise ist zwischen den Übergängen des erweiterten Kopfes 13a zur restlichen Hülse 13 und dem Abschnitt IIa der Bohrung 11 zur restlichen Bohrung 11 ein Ringraum 17 gebildet. In diesem Ringraum 17 mundet eine Zufuhrleitung 18 in Form einer Stichbohrung. Durch diese Zufuhrleitung 18 kann in den Ringraum 17 ein Druckmittel, im bevorzugten Ausfuhrungsbeispiel ein Hydrau- likfluid, eingebracht werden.In the Fign. 3a to 3d it can be seen that the tremolo system block 5 has a total of six holes 11 in which the strings 6a to βf can be fixed in a manner to be described later. The bores 11 have a section 11a enlarged in diameter in a section shown in FIG. 3c below. In the holes 11 sleeves 13 are arranged longitudinally displaceable. The sleeves 13 each have an enlarged head 13a. The outer diameter of the widened head 13a corresponds to the inner diameter of the portion IIa of the bore 11; the outer diameter of the remaining sleeve 13 corresponds to the diameter of the remaining bore 11. In this way, an annular space 17 is formed between the transitions of the widened head 13a to the remaining sleeve 13 and the portion IIa of the bore 11 to the remaining bore 11. In this annular space 17, a supply line 18 in the form of a tap hole. By means of this supply line 18, a pressure medium, in the preferred exemplary embodiment a hydraulic fluid, can be introduced into the annular space 17.
In der Hülse 13 ist eine innere Bohrung 19 gefuhrt, welche im Bereich des erweiterten Kopfes 13a der Hülse 13 einen erweiterten Innendurchmesser aufweist (Abschnitt 19a) . Ferner sind - für die Erfindung nicht relevante, aus anderen Aspekten eingesetzte - weitere Hülsen 20 zu erkennen, die an dem in Fig. 3c oben dargestellten Abschnitt des Tremolo- Systemblockes 5 fest in den Bohrungen 11 sitzen. Diese Hülsen dienen einer Isolierung der durch die Hülsen 13 geführten Saiten gegenüber dem Metallmaterial des Tremolo- Systemblocks 5. Diese Isolierung ist in bestimmten Anwen- dungsfallen erforderlich, insbesondere wenn die Saiten 6a bis βf als elektrische Leiter verwendet werden sollen.In the sleeve 13, an inner bore 19 is guided, which in the region of the widened head 13a of the sleeve 13 has an expanded inner diameter (section 19a). Furthermore, further sleeves 20, which are not relevant to the invention and are used from other aspects, can be seen which are firmly seated in the bores 11 on the section of the tremolo system block 5 shown in FIG. 3c. These sleeves serve to insulate the strings passed through the sleeves 13 from the metal material of the tremolo system block 5. This insulation is used in certain applications. Training traps required, especially if the strings 6a to βf to be used as electrical conductors.
Im Einsatz sitzen die Saiten βa bis βf mit einer Verdickung an ihrem einen Ende (dem so genannten ball end) in dem erweiterten Abschnitt 19a der Bohrung in der Hülse 13 fest. Die Saiten sind dann weiter durch die Bohrung 19 in der jeweiligen Hülse 13 gefuhrt und dann durch die weitere, feststehende Hülse 20 hindurch aus dem Tremolo-Systemblock 5 heraus. Dort werden sie über in Fig. 4 dargestellte Reiter 21 und von dort über den Hals 3 bis zum Kopf 4 der E-Gitarre 1 gefuhrt. Dort laufen sie auf die Wirbel 7 auf. Die Hülsen 13 in den Bohrungen 11 des Tremolo-Systemblocks 5 werden durch in dem Ringraum 17 befindliches Hydraulikfluid in ihrer Position gehalten. Dabei steht der auf die Hülse 13 ausgeübte Druck des Hydraulikfluids mit der durch die Saite bzw. deren Spannung ausgeübte Kraft im Gleichgewicht. Soll die Saite nun gespannt werden, wird durch die Zufuhrleitung 18 weiteres Hydraulikfluid in den Ringraum 17 verbracht, um den Druck zu erhohen. Dadurch wird die Hülse 13 in der Bohrung 11 in der Fig. 3c gezeigten Ausrichtung nach unten bewegt und die Saite gespannt. Anders herum wird, soll die Saite entspannt werden, Hydraulikfluid aus der Zufuhrleitung 18 abgelassen, wodurch sich die Hülse 13 in der Bohrung 11 in der m Fig. 3c gezeigten Ausrichtung nach oben bewegt.In use, the strings βa to βf with a thickening at one end (the so-called ball end) in the extended portion 19a of the bore in the sleeve 13 are fixed. The strings are then further guided through the bore 19 in the respective sleeve 13 and then out through the further, fixed sleeve 20 from the tremolo system block 5 out. There they are guided via tab 21 shown in FIG. 4 and from there via the neck 3 to the head 4 of the electric guitar 1. There they run on the vortex 7. The sleeves 13 in the holes 11 of the tremolo system block 5 are held in position by hydraulic fluid in the annular space 17. The pressure of the hydraulic fluid exerted on the sleeve 13 is in equilibrium with the force exerted by the string or its tension. If the string is now to be tensioned, further hydraulic fluid is introduced into the annular space 17 by the supply line 18 in order to increase the pressure. As a result, the sleeve 13 is moved downward in the bore 11 in the orientation shown in FIG. 3c and the string is tensioned. Conversely, if the string is to be relaxed, hydraulic fluid is drained from the supply line 18, causing the sleeve 13 to move upwardly in the bore 11 in the orientation shown in FIG. 3c.
Bevorzugt wird Hydraulikfluid aus einem Hydraulikfluidspei- cherelement verwendet, welches ohne weiteres insbesondere ohne Veränderung der Geometrie bzw. des Materials der Gitarre, damit auch ohne Frasungen und sonstige Matenalausneh- mungen, im Korpus 2 der Gitarre 1 angeordnet werden kann. Hier bedarf es dann lediglich einer entsprechenden Ventil- schaltung, die zum Spannen bzw. Entspannen der Gitarrensai- ten jeweils richtig angesteuert wird. Alternativ zu der hier beschriebenen Wirkweise der Vorrichtung kann diese auch mit einem in beide Richtungen, d.h. zum Spannen wie auch zum Entspannen aktiv mit Hydraulikfluid belastbare Einheit (Doppelkammersystem) umfassen.Hydraulic fluid is preferably used from a hydraulic fluid storage element which can readily be arranged in the body 2 of the guitar 1, in particular without changing the geometry or the material of the guitar, thus also without milling and other material cutouts. In this case, all that is required is a corresponding valve circuit, which is correctly controlled for tensioning and relaxing the guitar soles. As an alternative to the mode of operation of the device described here, it can also comprise a unit (dual-chamber system) which can be actively loaded with hydraulic fluid in both directions, ie for clamping as well as for relaxing.
Wichtig ist m dem gezeigten Ausfuhrungsbeispiel, dass die Gesamtlange der Hülse 13 langer ist als die Lange des erweiterten Abschnittes IIa der Bohrung 11, damit hier auch im Zustand der maximalen Saitenspannung der Ringraum 17 gegenüber der restlichen Bohrung 11 abgedichtet ist und kein Hydraulikfluid aus dem Ringraum 17 unkontrolliert austreten kann.It is important in the exemplary embodiment shown that the total length of the sleeve 13 is longer than the length of the extended portion IIa of the bore 11, so that here in the state of maximum string tension of the annular space 17 is sealed against the remaining bore 11 and no hydraulic fluid from the annulus 17 can escape unchecked.
In einer bevorzugten Anwendung wird dieses System zum Verstellen der Spannung der Saiten in eine Vorrichtung zum automatischen Stimmen der Gitarre integriert. Dazu wird der m Fig. 2 gezeigte Steuerchip 10 verwendet. In diesem Chip ist ein Soll-Wert für die Frequenz einer Grundschwingung einer jeden Saite gespeichert. Über Signalleitungen ist dieser Steuerchip 10 mit bspw. den Tonabnehmern 12 verbunden, um die aktuelle Frequenz der Grundschwingung der Saiten erfassen zu können. Aus einer Differenz zwischen dem Soll- und dem Ist-Wert errechnet der Steuerchip 10 ein Maß, um welches die jeweilige Saite zu spannen bzw. zu entspannen ist und steuert das Ventil für die dieser Saite zugeordnete Stich- leitung 18 entsprechend an, so dass über einen Zu- bzw. Ab- fluss der Hydraulikflussigkeit eine jeweilige Anpassung der Saitespannung der betreffenden Saite vorgenommen werden kann .In a preferred application, this system is integrated into a device for automatic tuning of the guitar for adjusting the tension of the strings. For this purpose, the control chip 10 shown in FIG. 2 is used. In this chip, a target value for the frequency of a fundamental of each string is stored. Via signal lines, this control chip 10 is connected to, for example, the pickups 12 in order to be able to detect the current frequency of the fundamental vibration of the strings. From a difference between the setpoint and the actual value, the control chip 10 calculates a measure by which the respective string is to be tensioned or relaxed and controls the valve for the stub line 18 assigned to this string accordingly, so that over an inflow or outflow of the hydraulic fluid, a respective adaptation of the tension of the respective string can be made.
Anstelle die Tonabnehmer 12 (elektromagnetische Abnehmer) zu verwenden, können auch entweder in dem Tremolo-Systemblock 5 separat eingebrachte Piezo-Elemente oder aber die Hülsen 13 selbst, sofern sie aus einem piezoelektrischen Keramikmate- πal bestehen, als Element zum Erfassen des Ist-Wertes der Frequenz der Saite verwendet werden.Instead of using the pickups 12 (electromagnetic pickups), piezo elements introduced separately in the tremolo system block 5 or else the sleeves 13 themselves, if they consist of a piezoelectric ceramic material, can also be used. πal be used as an element for detecting the actual value of the frequency of the string.
In Fig. 5 ist schließlich ein Ausschnitt aus dem Korpus 2 der E-Gitarre 1 von hinten bzw. unten dargestellt. Zu erkennen ist hier die Aufhangung des Tremolo-Systemblocks 5, der mit den erfmdungsgemaß arbeitenden Hülsen 13 ausgerüstet ist. Der Tremolo-Systemblock 5 ist mit Hilfe dreier Federn 22, die über entsprechende Stelleinrichtungen 23 m ihrem auf dem Tremolo-Systemblock 5 ausgeübten Zug eingestellt werden können, in der Waage gehalten. Hier setzt eine weitere Nutzungsmoglichkeit der hydraulischen Verstellung an. Im Rahmen einer unabhängig von der vorliegenden Erfindung nutzbaren technischen Entwicklung ist es denkbar, durch Hydraulik- bzw. Pneumatikzylinder oder auf andere Weise mit einem Druckmittel aktiviert die Federspannung der einzelnen, den Tremolo-Systemblock 5 m einer Waage haltenden Federn zu verandern. Auf diese Weise konnte „automatisch" eine Einstellung der Waage des Tremolo-Systemblocks vorgenommen werden, bspw. um unterschiedliche Effekte des Gitarrenspiels zu erreichen oder aber um bei Einsatz unterschiedlicher Tremolo-Systeme, bspw. eines Floyd-Rose-Tremolo-Systemes, die Zugkräfte anzupassen. Mit 24 ist hier ein solcher Zylinder angedeutet. Möglich ist es bspw. auch, die Federn 22 insgesamt durch Pneumatik- bzw. Hydraulikzylinder zu ersetzen. Auch diese zuletzt beschriebene Losung ist unabhängig von der hier beanspruchten Erfindung durchfuhrbar und stellt für sich genommen eine eigene Erfindung dar. BezugszeichenlisteIn Fig. 5, finally, a section of the body 2 of the electric guitar 1 is shown from behind or below. Evident here is the suspension of the tremolo system block 5, which is equipped with the erfmdungsgemaß working sleeves 13. The tremolo system block 5 is held in the balance by means of three springs 22 which can be adjusted by means of corresponding actuators 23 m of their tension exerted on the tremolo system block 5. Here is another possibility for use of hydraulic adjustment. In the context of an exploitable independent of the present invention technical development, it is conceivable by hydraulic or pneumatic cylinder or otherwise activated with a pressure medium, the spring tension of the individual, the tremolo system block 5 m of a balance holding springs to change. In this way, an adjustment of the balance of the tremolo system block could be made "automatically", for example in order to achieve different effects of the guitar playing or else when using different tremolo systems, for example a Floyd Rose tremolo system, the tensile forces Such a cylinder is indicated here by 24. It is also possible, for example, to replace the springs 22 by pneumatic or hydraulic cylinders as a whole.Also this last-described solution can be carried out independently of the invention claimed here, and in itself constitutes one own invention. LIST OF REFERENCE NUMBERS
1 E-Gitarre 19 Bohrung1 electric guitar 19 hole
2 Korpus 19a Abschnitt2 Corpus 19a section
3 Hals 20 Hülse3 neck 20 sleeve
4 Kopf 21 Reiter4 head 21 rider
5 Tremolo-Systemblock 22 Feder5 Tremolo system block 22 Spring
βa-f Saite 23 Stelleinrichtungβa-f string 23 adjusting device
7 Wirbel 24 Pneumatik- bzw. Hyd¬7 vortex 24 Pneumatik- or Hyd¬
8 Flügel raulikzylinder8 wing raulikzylinder
9 Pick-Guard9 pick-guard
10 Steuerchip10 control chip
11 Bohrung11 bore
IIa erweiterter AbschnittIIa extended section
12 Tonabnehmer12 pickups
13 Hülse13 sleeve
13a erweiterter Kopf13a extended head
14 Leitung14 line
17 Ringraum17 annulus
18 Zuführleitung 18 feed line

Claims

Patentansprüche claims
1. Verfahren zum Verstellen der Spannung einer mit einem ersten Ende in einem Befestigungsblock (5) und mit einem zweiten Ende an einer weiteren Befestigung (7) festgelegten1 Saite (βa - βf) eines Saiteninstrumentes (1), wobei ein in bzw. an dem Befestigungsblock (5) relativ zu diesem verschiebbarer Halteabschnitt (13), an welchem das erste Ende der Saite (6a - βf) festgelegt ist, durch Beaufschlagung mit einem unter einem vorgebbaren Druck stehenden Druckmittel zum Spannen bzw. Entspannen der Saite (6a - βf) verschoben wird.1. A method for adjusting the tension of a having a first end in a mounting block (5) and with a second end to a further attachment (7) fixed 1 string (βa - .beta.f) of a stringed instrument (1), wherein a in or the fastening block (5) relative to this displaceable holding portion (13), on which the first end of the string (6a - βf) is fixed, by applying pressure under a prescribable pressure for tensioning or relaxing the string (6a - βf ) is moved.
2. Vorrichtung zum Verstellen der Spannung einer mit einem ersten Ende in einem Befestigungsblock (5) und mit einem zweiten Ende an einer weiteren Befestigung (7) festgelegten Saite (βa - βf) eines Saiteninstrumentes (1), gekennzeichnet, durch einen in bzw. an dem Befestigungsblock (5) relativ zu diesem verschiebbar angeordneten Haltabschnitt (13), welcher durch Beaufschlagung mit einem unter einem vorgebbaren Druck stehenden Druckmittel zum Spannen bzw. Entspannen der Saite (βa - βf) verschiebbar ist.2. Apparatus for adjusting the tension of a string (βa-βf) of a stringed instrument (1) fixed with a first end in a mounting block (5) and with a second end on a further fastening (7), characterized by a on the mounting block (5) relative to this slidably arranged holding portion (13), which is displaceable by applying pressure under a prescribable pressure means for tensioning or relaxing the string (βa - βf).
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass sie wenigstens eine in dem Befestigungsblock (5) geführte Bohrung (11) mit einem Bohrungsabschnitt (IIa) mit erweitertem Durchmesser sowie eine in der wenigstens einen Bohrung (11) verschiebbar und das Druckmittel abdichtend angeordnete Hülse (13) aufweist, wobei die Hülse (13) einen Kopf (13a) mit einem verbreiterten Außendurchmesser, der im wesentlichen dem Bohrungsdurchmesser in dem Abschnitt (IIa) der Bohrung (11) mit erweiterten Durchmesser entspricht, sowie einen Fortsatz mit einem Außendurchmesser, der im wesentlichen dem Bohrungsdurchmesser der restlichen Bohrung (11) entspricht, aufweist, wobei zwischen dem Kopf (13a) und dem Fortsatz der Hülse3. A device according to claim 2, characterized in that it at least one in the mounting block (5) guided bore (11) having a bore portion (IIa) with an enlarged diameter and in the at least one bore (11) displaceable and the pressure means sealingly arranged Sleeve (13), wherein the sleeve (13) has a head (13a) with a widened outer diameter substantially corresponding to the bore diameter in the portion (IIa) of the enlarged diameter bore (11), and an extension with a Outer diameter which substantially corresponds to the bore diameter of the remaining bore (11), wherein between the head (13 a) and the extension of the sleeve
(13) ein Absatz vorgesehen ist, wobei der Kopf (13a) der Hülse (13) in dem Bohrungsabschnitt (IIa) mit erweitertem Durchmesser angeordnet ist und der Fortsatz der Hülse (13) bis in den die restliche Bohrung (11) hineinragt, so dass zwischen dem Absatz zwischen dem Kopf(13) a shoulder is provided, wherein the head (13a) of the sleeve (13) in the bore portion (IIa) is arranged with an enlarged diameter and the extension of the sleeve (13) into which the remaining bore (11) protrudes, so that between the paragraph between the head
(13a) und dem Fortsatz der Hülse (13) und dem Übergang Bohrungsabschnittes (IIa) mit dem vergrößerten Durchmesser in die restliche Bohrung (11) ein abgedichteter Ringraum (17) gebildet ist, und wobei in diesen Ringraum(13a) and the extension of the sleeve (13) and the transition bore portion (IIa) with the enlarged diameter in the remaining bore (11) a sealed annular space (17) is formed, and wherein in this annulus
(17) wenigstens eine Leitung (18) zum Zuführen bzw. Abführen von Druckmittel mündet.(17) at least one line (18) for supplying or discharging pressure medium opens.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass in dem Kopf (13a) der Hülse (13) eine gegenüber der Bohrung (19) in dem restlichen Abschnitt der Hülse (13) im Durchmesser erweiterter Bohrungsabschnitt (19a) angeordnet ist.4. Apparatus according to claim 3, characterized in that in the head (13 a) of the sleeve (13) opposite to the bore (19) in the remaining portion of the sleeve (13) in the diameter-expanded bore portion (19 a) is arranged.
5. Vorrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die Hülse (13) eine Hülse aus einem piezoelektrischen Keramikmaterial ist, wobei die Hülse5. Device according to one of claims 3 or 4, characterized in that the sleeve (13) is a sleeve of a piezoelectric ceramic material, wherein the sleeve
(13) zur Aufnahme von piezoelektrisch gewonnenen Signalen elektrisch kontaktiert ist.(13) is electrically contacted for receiving piezoelectrically obtained signals.
6. Vorrichtung zum automatischen Stimmen wenigstens einer Saite (βa - 6f) eines Saiteninstrumentes (1), insbesondere einer Gitarre oder einem E-Bass, mit einem Sensor (12) zum Erfassen eines akustischen Signals der schwingenden Saite ( βa - 6f) , einer Wandlereinheit zum Umwandeln des akustischen Signals in ein digitales Signal zum Bestimmen einer zugehörigen Frequenz, einer Vergleichseinheit zum Abgleichen der ermittelten Frequenz mit ei- ner vorgegebenen Frequenz, einer Vorrichtung zum Verstellen der Spannung der wenigstens einen Saite (βa - 6f) und einer Steuerung (10) zum Ansteuern der Vorrichtung zum Verstellen der Spannung der wenigstens einen Saite (βa - 6f) anhand einer festgestellten Abweichung zwischen der ermittelten Frequenz und der vorgegebenen Frequenz, dadurch gekennzeichnet, dass die Vorrichtung zum Verstellen der Spannung der wenigstens einen Saite ( βa - 6f) eine Vorrichtung nach einem der Ansprüche 2 bis 5 ist. 6. Apparatus for automatically tuning at least one string (βa-6f) of a stringed instrument (1), in particular a guitar or an electric bass, with a sensor (12) for detecting an acoustic signal of the vibrating string (βa-6f) Converter unit for converting the acoustic signal into a digital signal for determining an associated frequency, a comparison unit for matching the determined frequency with a ner given frequency, a device for adjusting the voltage of the at least one string (βa - 6f) and a controller (10) for driving the device for adjusting the voltage of the at least one string (βa - 6f) based on a detected deviation between the determined frequency and the predetermined frequency, characterized in that the device for adjusting the tension of the at least one string (βa - 6f) is a device according to one of claims 2 to 5.
EP05716155A 2005-03-17 2005-03-17 Device and method for adjusting the tension of a string of a stringed instrument Not-in-force EP1859435B1 (en)

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US20080190273A1 (en) 2008-08-14
ATE456122T1 (en) 2010-02-15
KR20070112269A (en) 2007-11-22
US7534955B2 (en) 2009-05-19
WO2006097124A1 (en) 2006-09-21
EP1859435B1 (en) 2010-01-20
CA2602147A1 (en) 2006-09-21
CN101176144A (en) 2008-05-07
DE502005008931D1 (en) 2010-03-11
CN101176144B (en) 2011-01-26
KR101145042B1 (en) 2012-05-14
JP2008533532A (en) 2008-08-21
JP4802240B2 (en) 2011-10-26

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