EP1859433A1 - Device for adjusting the tension of the strings of a stringed instrument - Google Patents

Device for adjusting the tension of the strings of a stringed instrument

Info

Publication number
EP1859433A1
EP1859433A1 EP05716156A EP05716156A EP1859433A1 EP 1859433 A1 EP1859433 A1 EP 1859433A1 EP 05716156 A EP05716156 A EP 05716156A EP 05716156 A EP05716156 A EP 05716156A EP 1859433 A1 EP1859433 A1 EP 1859433A1
Authority
EP
European Patent Office
Prior art keywords
motor
guitar
transmission
strings
bass
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
EP05716156A
Other languages
German (de)
French (fr)
Other versions
EP1859433B1 (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 EP1859433A1 publication Critical patent/EP1859433A1/en
Application granted granted Critical
Publication of EP1859433B1 publication Critical patent/EP1859433B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

Definitions

  • the invention relates to a device for adjusting the voltage of the first end on a winding device and with a second end to a further attachment fixed sides of a stringed instrument, in particular a guitar, preferably electric guitar, or a bass, preferably electric bass.
  • the string of a stringed instrument are each fixed rigidly with one of its two ends, the second end of the string runs on a winding device, for example in the form of a spindle or a similar element, on and can be relaxed or unwound by winding or unwinding, so as to obtain the right mood of the string.
  • a winding device for example in the form of a spindle or a similar element
  • the stringed instrument should also be able to be tuned automatically, i. by means of a control which controls a drive to change the string tension so that it produces the target sound due to a detected actual sound of the struck string compared with a desired tone, the strings must be changed in their voltage automatically.
  • a control which controls a drive to change the string tension so that it produces the target sound due to a detected actual sound of the struck string compared with a desired tone
  • a guitar especially an electric guitar, or a bass, preferably electric bass
  • basic motor drives can also be used to set the string tensions of the individual strings, it is very difficult to accommodate all these components on the spatially narrow head of the guitar without permanently changing their appearance and handling. It is then almost impossible, in addition to the drives, to arrange the entire control for a system for automatic tuning of the guitar or of the bass, preferably electric bass, on this 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.
  • the central, inventive idea of the invention is to assign a separate motor instead of each of the winding devices, to reduce the number of motors as a whole and to transmit a torque generated by the motor via a transmission to flexible shafts which are connected to the winding devices for driving them are.
  • the use of flexible shafts allows a deflection of the torque in the direction of the winding devices.
  • flexible waves have the advantage that they are small, light and easy to arrange in a stringed instrument.
  • sensors are arranged at the head of the guitar, in particular electric guitar, or the bass, preferably electric bass, which detect the current tone of a broken string (for example a piezo pickup), a voltage supply is also present at the head of the instrument ,
  • a device for automatic tuning of the instrument as a whole can be arranged there on the head.
  • Such a device works -indem the actual actual sound of a vibrating string of frequency is detected, this frequency is compared with a setpoint stored in the control frequency and by the control of the motor (s) and the transmission in one controlled in such a manner that the corresponding string associated winding device, such as the associated vortex, according to the tensioning or relaxing the string is controlled so that it oscillates in the predetermined frequency.
  • such a device for automatic tuning of the stringed instrument in particular a guitar or bass, preferably electric bass
  • the control can also be arranged on the body of the instrument, in which case it must be ensured that the control signals from the body to the head of the engine / the motors and the transmission are transmitted.
  • the controller may be located on the head, a power supply for the controller and motor (s) may be routed from the body to the head.
  • the transmission according to the invention is preferably designed such that in each case one with a winding device directionally connected, flexible shaft selectively individually and connect with a torque output of a motor. In this way it is ensured that each of the winding devices can be moved individually for tensioning or relaxing the respective string automatically, so that each string can be individually stretched or relaxed and tuned with it.
  • the device has two motors, each generating a torque with opposite direction of rotation.
  • This type of oppositely directed torques can be generated, for example, by an arrangement of motors rotating in the same direction relative to one another in an axial direction relative to the torque, but it is also possible for motors to be set parallel to one another and run in opposite directions.
  • a transmission is provided, via which each of the guided to each one winding device, flexible shaft with the torque output of one or the other motor is connectable. In this way, by connecting the flexible shaft of a winding device to one or the other motor, more precisely with their torque outputs, a movement of the winding device for winding the unwinding or unwinding of the string, i. for clamping or relaxing the same achieved.
  • each of the winding devices can be controlled individually for tensioning or relaxing the string, while the remaining winding devices remain in their current position.
  • a possible embodiment of the transmission currently preferred in the context of the invention is specified in claim 4. Thereafter, one connected to the at least one motor a friction surface having, substantially cylindrical, about a longitudinal axis rotatable drive roller and connected to the flexible shafts, also having friction surfaces and arranged engageable with the drive roller take-off wheels arranged in the transmission.
  • a friction surface having, substantially cylindrical, about a longitudinal axis rotatable drive roller and connected to the flexible shafts, also having friction surfaces and arranged engageable with the drive roller take-off wheels arranged in the transmission.
  • the preferred arrangement of the device is described on a head of a guitar, preferably an electric guitar, or a bass, preferably electric bass.
  • Head of the electric guitar shown in Figure 1 with a device according to the invention arranged thereon.
  • Fig. 3 is a plan view of the back shown in Fig. 2 of the head of the electric guitar and Fig. 4 is a sectional view taken along the line IV - IV shown in Fig. 3 through the head of the electric guitar with the device according to the invention
  • an electric guitar 1 shown in Fig. 1 The invention is not limited to the application in such an electric guitar, but can be used in principle in any stringed instrument, in particular in acoustic guitars, electric basses, stringed instruments and the like.
  • the electric guitar 1 schematically shown in Fig. 1 can be roughly divided into a body 2, a neck 3 and a head 4.
  • a mounting block in this example, a tremolo system block 5, arranged on which the Are fixed to the guitar strings ⁇ a to 6f each having a first end. With their respective second end "run the guitar strings 6a to 6f on arranged on the head 4 vertebrae 7 on.
  • the vortices 7 are connected to wings 8, by the rotation of which the vortices 7 are rotated and thus the string tension can be changed.
  • pick-guard 9th On the body 2 of the guitar 1 is below the strings 6a to 6f finally a so-called pick-guard 9th
  • the device according to the invention is arranged in this exemplary embodiment on the head 4 of the electric guitar 1, specifically on the rear side of the head 4 opposite the vertebrae 7.
  • the take-off wheels 13 with a radial friction surface are separated from radial friction surfaces of the drive rollers 14. If one of the vortices 7 is to be rotated for adjusting the string tension, the take-off wheel 13 connected to the corresponding flexible shaft 11 is brought into contact with the friction surface of one of the drive rollers 14 in a manner to be described in more detail later on, so that a torque transfer from that of the Drive roller 14 associated with the motor 15 can take place on the vortex 7.
  • the motors 15 are arranged opposite one another in the axial direction of the drive rollers 14.
  • the motors 15 themselves both have a torque output in the same direction, but by the arrangement opposite each other is output to the drive rollers 14, however, in each case a torque with opposite sense of rotation. Therefore, the take-off wheels 13 can be moved by engagement with one of the drive rollers 14 in a first direction of rotation or in a direction opposite to the first direction of rotation. In other words, depending on selected drive roller 14, with which a particular take-off wheel 13 is brought into engagement, the associated flexible shaft 11 and thus ultimately the vortex 7 are driven to relax or tension the string in the required direction of rotation.
  • Fig. 4 is again clearly seen that in an idle position, the pick-up loader 13 are separated with their Fritationsflachen of the friction surfaces of the drive rollers 14. Only when a selected vortex 7 is to be rotated in a particular direction, the associated Ab Cyprusrad 13 is printed with its radial friction surface targeted against the radial friction surface of the corresponding drive roller 14 to an adjustment of the vortex 7 and thus tensioning or relaxing on this vortex. 7 to reach the leading string.
  • Fig. 4 it can also be seen that in a space-saving design, the total of six drive wheels (one for each of the six vertebrae 7) in the view shown in Fig. 3 are arranged in two planes one above the other. In the same way, the flexible shafts 11 are guided in two planes.
  • the device shown is particularly well suited to m a system for automatic tuning of the stringed instrument, here the electric guitar 1, to be involved.
  • the motors 15 as well as the transmission 12 or a control for engaging individual pickup loader 13 are connected to a controller.
  • This control is further connected to a detection means for detecting the actual actual frequency in which a string is oscillating, and capable of comparing this actual frequency with a desired frequency.
  • the controller controls one of the motors 15 (depending on the required running direction for clamping or relaxing the to tuning string).
  • the controller controls a clutch mechanism, which brings the whirl 7, on which the tensioning string auf Maisden associated take-off wheel 13 with the driven motor 15 associated drive roller 14 into engagement, so that a tensioning or relaxing of the string takes place.
  • the controller further controls, preferably via a control, in which the sound produced by the string is permanently monitored when the string has the correct tension and then releases the take-off wheel 13 from the drive roller 14 and switches off the motor 15.
  • Mechanisms for coupling a take-off wheel 13 to one of the drive rollers 14 may, for example, be driven pneumatically or magnetically, preferably electromagnetically.

Abstract

A device is disclosed for adjusting the tension of the strings of a string instrument, especially a guitar, preferably an electric guitar, or a bass, preferably an electric bass, said strings being secured at a first end to a winding mechanism and at a second end to another mount, said device having at least one motor, a gear connected to the motor and flexible shafts connected to the gear for transmission of a rotational movement generated by the combination of the motor and the gear to the winding mechanism whereby the device has fewer motors than there are strings on the string instrument. With this device it is possible to arrange a drive for automatic adjustment of the tension of the strings of the string instrument in a space-saving manner and in the smallest possible amount of space.

Description

Vorrichtung zum Verstellen der Spannung der Saiten eines Device for adjusting the tension of the strings
Saiteninstrumentesstring instrument
Die Erfindung betrifft eine Vorrichtung zum Verstellen der Spannung der mit einem ersten Ende auf einer Wickelvorrichtung und mit einem zweiten Ende an einer weiteren Befestigung festgelegten Seiten eines Saiteninstrumentes, insbesondere einer Gitarre, vorzugsweise E-Gitarre, oder eines Basses, vorzugsweise E-Basses.The invention relates to a device for adjusting the voltage of the first end on a winding device and with a second end to a further attachment fixed sides of a stringed instrument, in particular a guitar, preferably electric guitar, or a bass, preferably electric bass.
Zum korrekten Stimmen von Saiteninstrumenten ist es erforderlich, die bei diesen Instrumenten zwischen zwei Befestigungspunkten 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 precisely adjust the tension of these instruments between two attachment points in their tension, so that forms a standing wave of the correct frequency when striking the string and thus produces the desired tone.
Üblicherweise sind hierzu die Saite eines Saiteninstrumentes jeweils mit einem ihrer beiden Enden starr festgelegt, das zweite Ende der Saite läuft auf einer Wickelvorrichtung, bspw. in Form einer Spindel oder einem ähnlichen Element, auf und kann durch Auf- bzw. Abwickeln ge- bzw. entspannt werden, um so die richtige Stimmung der Saite zu erlangen.Usually for this purpose the string of a stringed instrument are each fixed rigidly with one of its two ends, the second end of the string runs on a winding device, for example in the form of a spindle or a similar element, on and can be relaxed or unwound by winding or unwinding, so as to obtain the right mood of the string.
Insbesondere 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 so ansteuert, dass diese den Soll-Ton erzeugt, müssen die Saiten in ihrer Spannung automatisch verändert werden. Hierzu wurde an anderer Stelle bereits vorgeschlagen, jede der Wickelvorrichtungen mit einem eigenen motorischen Antrieb zu versehen.In particular, if the stringed instrument should also be able to be tuned automatically, i. by means of a control which controls a drive to change the string tension so that it produces the target sound due to a detected actual sound of the struck string compared with a desired tone, the strings must be changed in their voltage automatically. For this purpose, it has already been proposed elsewhere to provide each of the winding devices with its own motor drive.
Zum Beispiel bei einer Gitarre, insbesondere einer E- Gitarre, bzw. einem Bass, vorzugsweise E-Bass, sitzen die so genannten Mechaniken bzw. die Wirbel zum Spannen bzw. Entspannen der Saiten jedoch am so genannten Kopf des -Instrumentes und damit an einem vergleichsweise kleinen Teil desselben. Zwar können grundsätzliche auch hier motorische Antriebe zum Einstellen der Saitenspannungen der einzelnen Saiten angebracht werden, allerdings ist es sehr schwierig diese Bauelemente alle auf dem räumlich engen Kopf der Gitarre unterzubringen, ohne deren Aussehen und Handhabung nachhaltig zu verändern. Nahezu unmöglich ist es dann, zusätzlich zu den Antrieben die gesamte Steuerung für ein System zum automatischen Stimmen der Gitarre bzw. des Basses, vorzugsweise 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.For example, in a guitar, especially an electric guitar, or a bass, preferably electric bass, sit the so-called tuners or the vertebrae for tensioning or relaxing the strings on the so-called head of the instrument and thus at one comparatively small part of the same. Although basic motor drives can also be used to set the string tensions of the individual strings, it is very difficult to accommodate all these components on the spatially narrow head of the guitar without permanently changing their appearance and handling. It is then almost impossible, in addition to the drives, to arrange the entire control for a system for automatic tuning of the guitar or of the bass, preferably electric bass, on this 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.
Diese Aufgabe wird mit einer Vorrichtung zum Verstellen der Spannung der mit einem ersten Ende auf einer Wickelvorrichtung und mit einem zweiten Ende an einer weiteren Befestigung festgelegten Saiten eines Saiteninstrumentes mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen dieser Vorrichtung sind in den abhängigen Ansprüchen 2 bis 6 angegeben.This object is achieved with a device for adjusting the tension of the fixed with a first end on a winding device and a second end at a further attachment strings of a stringed instrument with the Characteristics of claim 1 solved. Advantageous developments of this device are specified in the dependent claims 2 to 6.
Die zentrale, erfinderische Idee der Erfindung besteht darin, anstelle jeder der Wickelvorrichtungen einen eigenen Motor zuzuordnen, die Anzahl der Motoren insgesamt zu reduzieren und ein von dem Motor erzeugtes Drehmoment über ein Getriebe auf flexible Wellen zu übertragen, welche mit den Wickelvorrichtungen zu deren Antrieb verbunden sind. Der Einsatz flexibler Wellen ermöglicht eine Umlenkung des Drehmomentes in Richtung der Wickelvorrichtungen. Grundsätzlich wäre es auch möglich, den Weg zwischen einer Drehmomentausgabe des bzw. der Motor (en) und den Wickelvorrichtungen über bspw. Zahnradkombinationen zu überbrücken, allerdings würde dies eine komplexe und mit vielen Bauteilen beladene Konstruktion bedingen. Hier haben flexible Wellen den Vorteil, dass sie klein, leicht und einfach in einem Saiteninstrument anzuordnen sind.The central, inventive idea of the invention is to assign a separate motor instead of each of the winding devices, to reduce the number of motors as a whole and to transmit a torque generated by the motor via a transmission to flexible shafts which are connected to the winding devices for driving them are. The use of flexible shafts allows a deflection of the torque in the direction of the winding devices. In principle, it would also be possible to bridge the path between a torque output of the motor (s) and the winding devices via, for example, gear combinations, but this would require a complex structure loaded with many components. Here flexible waves have the advantage that they are small, light and easy to arrange in a stringed instrument.
Insbesondere am Beispiel einer Gitarre, vorzugsweise E- Gitarre, bzw. eines Basses, vorzugsweise E-Basses, bei welchen Instrumenten die Wickelvorrichtungen in Form der so genannten Wirbel am Kopf sitzen, ist der Raum zur Anordnung von Motoren besonders eingeengt. Hier kann mit der vorliegenden Erfindung gegenüber einer an anderer Stelle bereits vorgeschlagenen Ausrüstung eines jeden Wirbels mit einem eigenen Motor erheblicher Raum eingespart werden. Dies führt zunächst zu einer Gewichtsersparnis an diesem Ende des Instrumentes, was insbesondere für die Austarierung des Instrumentes von extremem Vorteil ist. Für Musiker ist es störend, teilweise sogar nahezu unmöglich, mit „kopflastigen" Instrumenten zu agieren. Ferner bietet eine Reduktion der Anzahl der Motoren bei diesen Instrumenten die Möglichkeit, in dem dann noch vorhandenen, nicht durch die Motoren eingenommenen Raum bspw. eine Steuerung für eine automatische Stimmung des Instrumentes unterzubringen. Sind am Kopf der Gitarre, insbesondere E-Gitarre, bzw. des Basses, vorzugsweise E-Basses, auch Sensoren angeordnet, die den aktuellen Ton einer angeschlagenen Saite erfassen (bspw. Piezoabneh- mer) und ist auch eine Spannungsversorgung am Kopf des Instrumentes vorhanden, kann eine Vorrichtung zum automatischen Stimmen des Instrumentes insgesamt dort am Kopf angeordnet sein. Eine solche Vorrichtung funktioniert, -indem der tatsächliche Ist-Ton einer schwingenden Saite der Frequenz erfasst wird, diese Frequenz mit einer in der Steuerung gespeicherten Soll-Frequenz verglichen wird und durch die Steuerung der bzw. die Motor (en) sowie das Getriebe in einer solchen Art und Weise angesteuert werden, dass die der entsprechenden Saite zugeordnete Aufwickelvorrichtung, z.B. der zugeordnete Wirbel, entsprechend zum Spannen bzw. zum Entspannen der Saite so angesteuert wird, dass sie in der vorgegebenen Frequenz schwingt. Alternativ kann eine solche Vorrichtung zum automatischen Stimmen des Saiteninstrumentes, insbesondere einer Gitarre oder Basses, vorzugsweise E- Basses, auch modular entlang des Instrumentes verteilt sein. So kann am Beispiel einer Gitarre, vorzugsweise E-Gitarre, bzw. eines Basses, vorzugsweise E-Basses, die Steuerung auch am Korpus des Instrumentes angeordnet sein, wobei dann dafür Sorge zu tragen ist, dass die Steuersignale vom Korpus zum Kopf an den Motor / die Motoren sowie das Getriebe übertragen werden. Gleichermaßen kann zwar die Steuerung am Kopf angeordnet sein, jedoch eine Stromversorgung für die Steuerung und den/die Motor (en) vom Korpus her zum Kopf geführt sein .In particular, the example of a guitar, preferably electric guitar, or a bass, preferably electric bass, in which instruments the winding devices in the form of the so-called vortex sit on the head, the space for the arrangement of motors is particularly narrowed. Here can be saved with the present invention over a previously proposed elsewhere equipment each vortex with its own engine considerable space. This initially leads to a weight saving at this end of the instrument, which is especially for the balance of the instrument of extreme advantage. For musicians, it is disturbing, sometimes even almost impossible, to work with "top-heavy" instruments, and a reduction in the number of motors in these instruments makes it possible to in the then still existing, not occupied by the engines room eg. To accommodate a control for an automatic tuning of the instrument. If sensors are arranged at the head of the guitar, in particular electric guitar, or the bass, preferably electric bass, which detect the current tone of a broken string (for example a piezo pickup), a voltage supply is also present at the head of the instrument , A device for automatic tuning of the instrument as a whole can be arranged there on the head. Such a device works -indem the actual actual sound of a vibrating string of frequency is detected, this frequency is compared with a setpoint stored in the control frequency and by the control of the motor (s) and the transmission in one controlled in such a manner that the corresponding string associated winding device, such as the associated vortex, according to the tensioning or relaxing the string is controlled so that it oscillates in the predetermined frequency. Alternatively, such a device for automatic tuning of the stringed instrument, in particular a guitar or bass, preferably electric bass, may also be distributed modularly along the instrument. Thus, the example of a guitar, preferably electric guitar, or a bass, preferably electric bass, the control can also be arranged on the body of the instrument, in which case it must be ensured that the control signals from the body to the head of the engine / the motors and the transmission are transmitted. Similarly, while the controller may be located on the head, a power supply for the controller and motor (s) may be routed from the body to the head.
Das erfindungsgemäß vorhandene Getriebe ist vorzugsweise so ausgestaltet, dass es jeweils eine mit einer Wickelvorrich- tung verbundene, flexible Welle gezielt einzeln ansteuern und mit einer Drehmomentausgabe eines Motors verbinden kann. Auf diese Weise ist sicher gestellt, dass jede der Wickelvorrichtungen einzeln zum Spannen bzw. Entspannen der jeweiligen Saite automatisch bewegt werden kann, so dass jede Saite individuell gespannt bzw. entspannt und damit gestimmt werden kann.The transmission according to the invention is preferably designed such that in each case one with a winding device directionally connected, flexible shaft selectively individually and connect with a torque output of a motor. In this way it is ensured that each of the winding devices can be moved individually for tensioning or relaxing the respective string automatically, so that each string can be individually stretched or relaxed and tuned with it.
In einer bevorzugten Ausgestaltung (Anspruch 2) weist die Vorrichtung zwei Motoren auf, die jeweils ein Drehmoment mit einander entgegen gesetztem Drehsinn erzeugen. Diese Art der entgegen gesetzt gerichteten Drehmomente kann bspw. durch eine in einer bezogen auf das Drehmoment axialen Richtung einander gegenüber liegenden Anordnung von gleichsinnig laufenden Motoren erzeugt werden, es können jedoch auch Motoren parallel neben einander gesetzt werden, welche gegensinnig laufen. Ferner ist in dieser Weiterbildung vorgesehen, dass ein Getriebe vorgesehen ist, über welches jede der zu jeweils einer Wickelvorrichtung geführten, flexiblen Welle mit der Drehmomentausgabe des einen oder anderen Motors verbindbar ist. Auf diese Weise wird durch Verbinden der flexiblen Welle einer Wickelvorrichtung mit dem einen bzw. dem anderen Motor, genauer mit deren Drehmomentausgaben, eine Bewegung der Wickelvorrichtung zum Auf- bzw. Abwickeln der Saite, d.h. zum Spannen bzw. Entspannen derselben erreicht.In a preferred embodiment (claim 2), the device has two motors, each generating a torque with opposite direction of rotation. This type of oppositely directed torques can be generated, for example, by an arrangement of motors rotating in the same direction relative to one another in an axial direction relative to the torque, but it is also possible for motors to be set parallel to one another and run in opposite directions. Furthermore, it is provided in this development that a transmission is provided, via which each of the guided to each one winding device, flexible shaft with the torque output of one or the other motor is connectable. In this way, by connecting the flexible shaft of a winding device to one or the other motor, more precisely with their torque outputs, a movement of the winding device for winding the unwinding or unwinding of the string, i. for clamping or relaxing the same achieved.
In einer wie in Anspruch 3 angegebenen Weiterbildung der Vorrichtung wird erreicht, dass jede der Wickelvorrichtungen individuell zum Spannen bzw. Entspannen der Saite ansteuerbar ist, während die restlichen Wickelvorrichtungen in ihrer momentanen Position verbleiben.In a refinement of the device as specified in claim 3, it is achieved that each of the winding devices can be controlled individually for tensioning or relaxing the string, while the remaining winding devices remain in their current position.
Eine mögliche, im Rahmen der Erfindung derzeit bevorzugte Ausgestaltung des Getriebes ist in Anspruch 4 angegeben. Danach wird eine an den wenigstens einen Motor angeschlossene eine Friktionsoberfläche aufweisende, im wesentlichen zylinderförmige, um eine Längsachse rotierbare Antriebswalze sowie mit den flexiblen Wellen verbundene, ebenfalls Friktionsoberflächen aufweisende und mit der Antriebswalze in Eingriff bringbare Abnahmeräder in dem Getriebe angeordnet. Eine solche Lösung hat gegenüber einer Lösung mit Zahnrädern den Vorteil, dass es beim Einkuppeln eines der Abnahmeräder an der Antriebswalze nicht zu einem Versatz der Zahnungen der jeweiligen Zahnräder kommen kann. Als Friktionsoberflächen werden insbesondere Gummioberflächen bevorzugt (Anspruch 5) .A possible embodiment of the transmission currently preferred in the context of the invention is specified in claim 4. Thereafter, one connected to the at least one motor a friction surface having, substantially cylindrical, about a longitudinal axis rotatable drive roller and connected to the flexible shafts, also having friction surfaces and arranged engageable with the drive roller take-off wheels arranged in the transmission. Such a solution has over a solution with gears the advantage that it can not lead to an offset of the toothings of the respective gears when engaging one of the pick-up wheels on the drive roller. As friction surfaces in particular rubber surfaces are preferred (claim 5).
In Anspruch 6 ist die bevorzugte Anordnung der Vorrichtung an einem Kopf einer Gitarre, vorzugsweise einer E-Gitarre, oder eines Basses, vorzugsweise E-Basses, beschrieben.In claim 6, the preferred arrangement of the device is described on a head of a guitar, preferably an electric guitar, or a bass, preferably electric bass.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausfϋhrungsbeispiels anhand der beigefügten Figuren. In den Figuren ist die Erfindung am Beispiel einer Verwirklichung in einer E-Gitarre gezeigt. Die Erfindung ist jedoch nicht auf dieses Instrument beschränkt, sondern kann grundsätzlich bei allen Saiteninstrumenten angewandt werden. In den Figuren zeigen:Further features and advantages of the invention will become apparent from the following description of a Ausfϋhrungsbeispiels reference to the accompanying figures. In the figures, the invention is shown using the example of a realization in an electric guitar. However, the invention is not limited to this instrument, but can basically be applied to all stringed instruments. In the figures show:
Fig. 1 schematisch eine Ansicht einer E-Gitarre,1 is a schematic view of an electric guitar,
Fig. 2 in dreidimensionaler Ansicht die Rückseite desFig. 2 in three-dimensional view, the back of the
Kopfes der in Fig. 1 gezeigten E-Gitarre mit einer darauf angeordneten, erfindungsgemäßen Vorrichtung,Head of the electric guitar shown in Figure 1 with a device according to the invention arranged thereon.
Fig. 3 eine Aufsicht auf die in Fig. 2 dargestellte Rückseite des Kopfes der E-Gitarre und Fig. 4 eine entlang der in Fig. 3 gezeigten Linie IV - IV genommene Schnittansicht durch den Kopf der E- Gitarre mit der erfindungsgemäßen VorrichtungFig. 3 is a plan view of the back shown in Fig. 2 of the head of the electric guitar and Fig. 4 is a sectional view taken along the line IV - IV shown in Fig. 3 through the head of the electric guitar with the device according to the invention
In den Figuren sind gleiche Elemente mit gleichen Bezugszeichen versehen.In the figures, the same elements are provided with the same reference numerals.
In den Figuren wird die Erfindung anhand eines auf "einer in Fig. 1 dargestellten E-Gitarre 1 montierten Ausführungsbeispiels erläutert. Die Erfindung ist nicht auf die Anwendung in einer solchen E-Gitarre beschränkt, sondern kann prinzipiell in jedem Saiteninstrument eingesetzt werden, insbesondere auch in Akustik-Gitarren, E-Bässen, Streichinstrumenten und dergleichen.In the figures, the invention is explained with reference to an embodiment mounted on " an electric guitar 1 shown in Fig. 1. The invention is not limited to the application in such an electric guitar, but can be used in principle in any stringed instrument, in particular in acoustic guitars, electric basses, stringed instruments and the like.
Die in Fig. 1 schematisch gezeigte E-Gitarre 1 lässt sich grob unterteilen in einen Korpus 2, einen Hals 3 und einen Kopf 4. An dem Korpus 2 ist ein Befestigungsblock, in diesem Beispiel ein Tremolo-Systemblock 5, angeordnet, an welchem die Gitarrensaiten βa bis 6f jeweils mit einem ersten Ende festgelegt sind. Mit ihrem jeweiligen zweiten Ende „laufen die Gitarrensaiten 6a bis 6f auf an dem Kopf 4 angeordneten Wirbeln 7 auf. Die Wirbel 7 sind mit Flügeln 8 verbunden, durch deren Drehung die Wirbel 7 verdreht und damit die Saitenspannung verändert werden kann. Am Korpus 2 der Gitarre 1 befindet sich unterhalb der Saiten 6a bis 6f schließlich noch ein so genanntes pick-guard 9.The electric guitar 1 schematically shown in Fig. 1 can be roughly divided into a body 2, a neck 3 and a head 4. On the body 2, a mounting block, in this example, a tremolo system block 5, arranged on which the Are fixed to the guitar strings βa to 6f each having a first end. With their respective second end "run the guitar strings 6a to 6f on arranged on the head 4 vertebrae 7 on. The vortices 7 are connected to wings 8, by the rotation of which the vortices 7 are rotated and thus the string tension can be changed. On the body 2 of the guitar 1 is below the strings 6a to 6f finally a so-called pick-guard 9th
Die erfindungsgemäße Vorrichtung wird in diesem Ausführungsbeispiel am Kopf 4 der E-Gitarre 1 angeordnet, und zwar auf der den Wirbeln 7 gegenüber liegenden Rückseite des Kopfes 4.The device according to the invention is arranged in this exemplary embodiment on the head 4 of the electric guitar 1, specifically on the rear side of the head 4 opposite the vertebrae 7.
Dies ist in den Figuren 2 bis 4 näher dargestellt. In diesen Figuren ist jeweils nur der Kopf 4 der E-Gitarre 1 -sowie ein kleiner Abschnitt des Halses 3 dargestellt. Zu erkennen sind die mit den auf der gegenüber liegenden Seite angeordneten Wirbeln 7 zum Drehen derselben verbundenen Mechaniken 10. An diese Mechaniken 10 angeschlossen ist für jeden der Wirbel 7 je eine flexible Welle 11. Diese flexiblen Wellen 11 sind mit jeweils einem Abnahmerad 13 verbunden, welches Teil eines Getriebes 12 ist. Ebenfalls Teil des Getriebes 12 sind Antriebswalzen 14. Die Antriebswalzen 14 sind direkt mit bezogen auf das Drehmoment in einer axialen Richtung einander gegenüber liegend angeordneten Motoren 15 verbunden. Letzte sind in einer hier nicht näher dargestellte Stromversorgung angeschlossen, so dass sie die Antriebswalzen 14 zur Rotation bringen können.This is shown in more detail in Figures 2 to 4. In these figures, only the head 4 of the electric guitar 1 and a small portion of the neck 3 are shown. To recognize are connected to these tuners 10 is connected to each of the vertebrae 7 depending on a flexible shaft 11. These flexible shafts 11 are each connected to a take-off wheel 13, which is part of a Transmission 12 is. Also, part of the transmission 12 are drive rollers 14. The drive rollers 14 are directly connected with respect to the torque in an axial direction opposite to each other arranged motors 15. Last are connected in a power supply, not shown here, so that they can bring the drive rollers 14 to rotate.
In einer Neutralstellung des Getriebes 12 sind die Abnahmeräder 13 mit einer radialen Friktionsoberfläche von radialen Friktionsoberflächen der Antriebswalzen 14 getrennt. Soll einer der Wirbel 7 zum Verstellen der Saitenspannung gedreht werden, wird das mit der entsprechenden flexiblen Welle 11 verbundene Abnahmerad 13 in später näher zu beschreibender Weise mit seiner Friktionsfläche mit der Friktionsfläche einer der Antriebswalzen 14 in Verbindung gebracht, so dass ein Drehmomentübertrag von dem der Antriebswalze 14 zugeordneten Motor 15 auf den Wirbel 7 stattfinden kann.In a neutral position of the transmission 12, the take-off wheels 13 with a radial friction surface are separated from radial friction surfaces of the drive rollers 14. If one of the vortices 7 is to be rotated for adjusting the string tension, the take-off wheel 13 connected to the corresponding flexible shaft 11 is brought into contact with the friction surface of one of the drive rollers 14 in a manner to be described in more detail later on, so that a torque transfer from that of the Drive roller 14 associated with the motor 15 can take place on the vortex 7.
Wie insbesondere in Fig. 3 erkennbar, sind die Motoren 15 in axialer Richtung der Antriebswalzen 14 einander gegenüber liegend angeordnet. Die Motoren 15 selbst haben beide eine gleichsinnige Drehmomentausgabe, durch die einander gegenüber liegende Anordnung wird auf die Antriebswalzen 14 jedoch jeweils ein Drehmoment mit entgegen gesetztem Drehsinn ausgegeben. Daher können die Abnahmeräder 13 durch Eingriff mit jeweils einer der Antriebswalzen 14 in einem ersten Drehsinn bzw. in einem dem ersten Drehsinn entgegen gesetzten Drehsinn bewegt werden. Mit anderen Worten kann je nach ausgesuchter Antriebswalze 14, mit welcher ein bestimmtes Abnahmerad 13 in Eingriff gebracht wird, die zugeordnete flexible Welle 11 und damit letztendlich der Wirbel 7 zum Entspannen oder zum Spannen der Saite in der jeweils erforderlichen Drehrichtung angetrieben werden.As can be seen in particular in FIG. 3, the motors 15 are arranged opposite one another in the axial direction of the drive rollers 14. The motors 15 themselves both have a torque output in the same direction, but by the arrangement opposite each other is output to the drive rollers 14, however, in each case a torque with opposite sense of rotation. Therefore, the take-off wheels 13 can be moved by engagement with one of the drive rollers 14 in a first direction of rotation or in a direction opposite to the first direction of rotation. In other words, depending on selected drive roller 14, with which a particular take-off wheel 13 is brought into engagement, the associated flexible shaft 11 and thus ultimately the vortex 7 are driven to relax or tension the string in the required direction of rotation.
In Fig. 4 ist noch einmal deutlich zu erkennen, dass in einer Leerlaufposition die Abnahmerader 13 mit ihren Friktionsflachen von den Friktionsflachen der Antriebswalzen 14 getrennt sind. Erst wenn ein ausgesuchter Wirbel 7 in einer bestimmten Richtung verdreht werden soll, wird das zugehörige Abnahmerad 13 mit seiner radialen Friktionsflache gezielt gegen die radiale Friktionsflache der entsprechenden Antriebswalze 14 gedruckt, um ein Verstellen des Wirbels 7 und damit Spannen bzw. Entspannen auf diesen Wirbel 7 auflaufenden Saite zu erreichen.In Fig. 4 is again clearly seen that in an idle position, the pick-up loader 13 are separated with their Friktionsflachen of the friction surfaces of the drive rollers 14. Only when a selected vortex 7 is to be rotated in a particular direction, the associated Abnahmerad 13 is printed with its radial friction surface targeted against the radial friction surface of the corresponding drive roller 14 to an adjustment of the vortex 7 and thus tensioning or relaxing on this vortex. 7 to reach the leading string.
In Fig. 4 ist ferner zu erkennen, dass zu einer platzsparenden Bauweise die insgesamt sechs Antriebsrader (je eines für die sechs Wirbel 7) in der in Fig. 3 gezeigten Ansicht in zwei Ebenen übereinander angeordnet sind. In gleicher Weise sind auch die flexiblen Wellen 11 in zwei Ebenen gefuhrt.In Fig. 4 it can also be seen that in a space-saving design, the total of six drive wheels (one for each of the six vertebrae 7) in the view shown in Fig. 3 are arranged in two planes one above the other. In the same way, the flexible shafts 11 are guided in two planes.
Die gezeigte Vorrichtung eignet sich insbesondere sehr gut, um m ein System zum automatischen Stimmen des Saiteninstrumentes, hier der E-Gitarre 1, eingebunden zu werden. Hierzu werden die Motoren 15 wie auch das Getriebe 12 bzw. eine Ansteuerung zum Einkuppeln einzelner Abnahmerader 13 mit einer Steuerung verbunden. Diese Steuerung ist ferner mit einer Erfassungseinrichtung zum Wahrnehmen der tatsachlichen aktuellen Frequenz, in welcher eine Saite schwingt, verbunden und in der Lage, diese aktuelle Frequenz mit einer Soll- Frequenz zu vergleichen. Anhand des Vergleichsergebnisses steuert die Steuerung einen der Motoren 15 an (je nach erforderlicher Laufrichtung zum Spannen bzw. Entspannen der zu stimmenden Saite) . Ferner steuert die Steuerung einen Kupplungsmechanismus an, der das dem Wirbel 7, auf welchem die zu spannende Saite aufläuft zugeordnete Abnahmerad 13 mit der dem angesteuerten Motor 15 zugeordneten Antriebswalze 14 in Eingriff bringt, so dass ein Spannen bzw. Entspannen der Saite erfolgt. Die Steuerung kontrolliert ferner, vorzugsweise über eine Regelung, bei der permanent der von der Saite erzeugte Ton überwacht wird, wann die Saite die richtige Spannung aufweist und löst dann das Abnahmerad 13 von der Antriebswalze 14 und schaltet den Motor 15 aus.The device shown is particularly well suited to m a system for automatic tuning of the stringed instrument, here the electric guitar 1, to be involved. For this purpose, the motors 15 as well as the transmission 12 or a control for engaging individual pickup loader 13 are connected to a controller. This control is further connected to a detection means for detecting the actual actual frequency in which a string is oscillating, and capable of comparing this actual frequency with a desired frequency. On the basis of the comparison result, the controller controls one of the motors 15 (depending on the required running direction for clamping or relaxing the to tuning string). Further, the controller controls a clutch mechanism, which brings the whirl 7, on which the tensioning string auflaufenden associated take-off wheel 13 with the driven motor 15 associated drive roller 14 into engagement, so that a tensioning or relaxing of the string takes place. The controller further controls, preferably via a control, in which the sound produced by the string is permanently monitored when the string has the correct tension and then releases the take-off wheel 13 from the drive roller 14 and switches off the motor 15.
Mechanismen zum Ankuppeln eines Abnahmerades 13 an eine der Antriebswalzen 14 können bspw. pneumatisch oder magnetisch, vorzugsweise elektromagnetisch, angetrieben sein.Mechanisms for coupling a take-off wheel 13 to one of the drive rollers 14 may, for example, be driven pneumatically or magnetically, preferably electromagnetically.
Das gezeigte und beschriebene Ausführungsbeispiel ist nicht beschränkend, sondern dient lediglich der Erläuterung. Die Erfindung in ihrem vollen Umfang ist ausschließlich durch die nachfolgenden Ansprüche beschränkt. The embodiment shown and described is not limiting, but is merely illustrative. The invention in its full scope is limited solely by the following claims.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 E-Gitarre1 electric guitar
2 Korpus2 corpus
3 Hals3 neck
4 Kopf4 head
5 Tremolo-Systemblock5 tremolo system block
βa-f Saiteβa-f string
7 Wirbel7 whirls
8 Flügel8 wings
9 Pick-Guard9 pick-guard
10 Mechanik10 mechanics
11 flexible Welle11 flexible shaft
12 Getriebe12 gears
13 Abnahmerad13 pick-up bike
14 Antriebswalze14 drive roller
15 Motor 15 engine

Claims

Patentansprüche claims
1. Vorrichtung zum Verstellen der Spannung der mit einem ersten Ende auf einer Wickelvorrichtung (7) und mit einem zweiten Ende an einer weiteren Befestigung (5) festgelegten Saiten (βa - βf) eines Saiteninstrumentes (1), insbesondere einer Gitarre, vorzugsweise E-Gitarre, oder eines Basses, vorzugsweise E-Basses, mit wenigstens einem Motor (15), einem mit dem Motor (15) verbundenen Getriebe (12) und an dem Getriebe (12) angeschlossenen flexiblen Wellen (11) zur Übertragung einer von der Kombination aus Motor (15) und Getriebe (12) generierten Drehbewegung auf die Wickelvorrichtung (7), wobei in der Vorrichtung weniger Motoren (15) angeordnet sind als das Saiteninstrument (1) Saiten (βa - βf) aufweist.1. A device for adjusting the tension of the strings (βa - βf) of a stringed instrument (1), in particular a guitar, preferably a guitar, fixed to a winding device (7) with a second end at a further attachment (5). Guitar, or a bass, preferably electric bass, comprising at least one motor (15), a transmission (12) connected to the motor (15) and flexible shafts (11) connected to the transmission (12) for transmitting one of the combination from the motor (15) and gearbox (12) generated rotational movement on the winding device (7), wherein in the device fewer motors (15) are arranged as the stringed instrument (1) has strings (βa - βf).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie zwei Motoren (15) aufweist, die jeweils ein Drehmoment mit einander entgegen gesetztem Drehsinn erzeugen, sowie ein Getriebe (12), über welches jede der zu jeweils einer Wickelvorrichtung (7) geführten, flexiblen Wellen (11) mit der Drehmomentausgabe des einen oder anderen Motors (15) verbindbar ist.2. Apparatus according to claim 1, characterized in that it comprises two motors (15), each generating a torque with opposite direction of rotation, and a transmission (12), via which each of the each guided to a winding device (7), flexible shafts (11) with the torque output of one or the other motor (15) is connectable.
3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in einer Normalstellung des Getriebes (12) die flexiblen Wellen (11) in einer Leerlaufposition ohne Verbindung mit dem Motor (15) geschaltet sind und dass über das Getriebe (12) jede einer zugehörigen Wickelvorrichtung (7) zugeordnete, flexible Welle (11) einer Saite (6a - βf) einzeln und gezielt mit der Drehmomentausgabe des wenigstens einen Motors (15) verbindbar ist, während die restlichen flexiblen Wellen3. Device according to one of the preceding claims, characterized in that in a normal position of the transmission (12) the flexible shafts (11) are connected in an idle position without connection to the motor (15) and that via the transmission (12) each one associated flexible winding (11) of a string (6a - βf) individually and selectively with the torque output of the at least one motor (15) is associated, while the remaining flexible shafts
(11) in der Leerlaufposition verbleiben. (11) remain in the idle position.
4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Getriebe (12) durch eine an dem mindestens einen Motor (15) angeordnete, eine Friktionsoberfläche aufweisende im wesentlichen zylinderförmige, um eine Längsachse rotierbare Antriebswalze (14) sowie mit der Antriebswalze (14) in Eingriff bringbare, mit den flexiblen Wellen (11) verbundene, Friktionsoberflächen aufweisende Abnahmeräder (13) gebildet ist.4. Device according to one of the preceding claims, characterized in that the transmission (12) by a at the at least one motor (15) arranged, a friction surface having substantially cylindrical, about a longitudinal axis rotatable drive roller (14) and with the drive roller ( 14) engageable, with the flexible shafts (11) connected, friction surfaces having take-off wheels (13) is formed.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Antriebswalze (14) und die Abnahmeräder (13) Friktionsoberflächen aus Gummi aufweisen.5. Apparatus according to claim 4, characterized in that the drive roller (14) and the take-off wheels (13) have friction surfaces made of rubber.
6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie an einem Kopf (4) einer Gitarre (1), vorzugsweise einer E-Gitarre, oder eines Basses, vorzugsweise E-Basses, angeordnet ist, wobei die flexiblen Wellen (11) zum Drehen der Wirbel (7) an diese angeschlossen sind. 6. Device according to one of the preceding claims, characterized in that it is arranged on a head (4) of a guitar (1), preferably an electric guitar, or a bass, preferably electric bass, wherein the flexible shafts (11 ) are connected to rotate the vortex (7) to this.
EP05716156A 2005-03-17 2005-03-17 Device for adjusting the tension of the strings of a stringed instrument Not-in-force EP1859433B1 (en)

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WO2006097125A1 (en) 2006-09-21
US20090038462A1 (en) 2009-02-12
JP4681040B2 (en) 2011-05-11
ATE527649T1 (en) 2011-10-15
JP2008533533A (en) 2008-08-21
EP1859433B1 (en) 2011-10-05
CA2602149A1 (en) 2006-09-21
US7692085B2 (en) 2010-04-06

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