Winding machine for a musical string

Abstract

In a winding machine (1) for a musical string (2), comprising a feed device (11) for a tensioned winding element (13) onto a string core (7) during a winding process, and a guide device (16) with two contact surfaces (18, 19) which are designed and configured to make physical contact with the first winding element (13) already arranged on the string core (7), wherein the guide device (16) together with the feed device (11) is movable parallel to the axis of rotation (6) of the tensioning device, wherein the winding point (17) is formed in the guide device (16) during the winding process, it is provided that the guide device (16) at the winding point (17) forms a support for the string core (7) and limits lateral deflections of the string core (7) during the winding process due to a tensile force (14) on the winding element (13).and that - in a plane normal to the clamping device rotation axis (6) - the first contact surface (18) is arranged at a first angle (α) between 55° and 125° to the second contact surface (19).

Description

[0001] The invention relates to a winding machine for a musical string according to claim 1.

[0002] Some musical strings consist of only a single wire. However, most musical strings have a load-bearing core wrapped with at least one non-load-bearing winding element, which is wound helically around the core during the string's manufacture. This winding process takes place in or on a specially designed machine. This machine has two opposing clamping devices to which the two ends of the core are attached, rotating the core around its longitudinal axis for the winding process. The winding element is tensioned and wound around the rotating core in a helical pattern. This is achieved by moving or shifting the winding element parallel to the core's longitudinal axis.

[0003] DE 27 36 567 A1 describes a winding machine which has a guide device that is not located at the winding point, but rather downstream of it. The system according to DE 27 36 567 A1 merely limits the deflection of the string core due to the tensile force on the winding element.

[0004] WO 98 / 49668 A1 discloses a winding machine in which the winding point is not located in a guide device.

[0005] US 2021 / 0214891 A1 describes a winding machine which has two plates at the winding point that press the winding element onto the string core. The two plates are in Fig. 3 The plates are not arranged parallel to each other, but open towards the feed mechanism. The friction between the two plates and the winding layer influences the degree of deflection of the string core due to the tensile force of the winding element. However, there is no limit to this deflection.

[0006] The object of the invention is to provide a winding machine for a musical string of the type mentioned above, with which the sound and playability of the musical string, in particular via its length, and therefore its sound and playability when playing, especially in different positions, can be predictably influenced and / or adjusted during or through the manufacturing process.

[0007] According to the invention, this is achieved by the features of claim 1.

[0008] This allows the sound and playability of the musical string to be predictably influenced and / or adjusted during or through the manufacturing process. This expands the possibilities for adjusting, specifying, or adapting the sound and playability of a musical string during or as a result of its production, independent of the materials used, its construction, and / or its dimensions. Therefore, it is not necessary to change the materials, construction, and / or dimensions to alter the sound and / or playability of the musical string.

[0009] The invention further relates to a method for manufacturing a musical string according to the preamble of claim 10.

[0010] The invention therefore further aims to selectively influence the sound of a musical string by means of the method of its manufacture.

[0011] According to the invention, this is achieved by the features of claim 10.

[0012] The advantages of the procedure correspond to the advantages of the aforementioned generic term.

[0013] The dependent claims relate to further advantageous embodiments of the invention.

[0014] The invention is described in more detail with reference to the enclosed drawings, in which only preferred embodiments are shown by way of example. These show: Fig. 1 a schematic diagram of a winding machine for the production of a musical string; Fig. 2 a floor plan of the winding machine according to Fig. 1 ; Fig. 3 a first preferred embodiment of a guide device in elevation; Fig. 4 a second preferred embodiment of a guide device in elevation; Fig. 5 a third preferred embodiment of a guide device in elevation; Fig. 6 a fourth preferred embodiment of a guide device in elevation; and Fig. 7 a fifth preferred embodiment of a guide device in plan view.

[0015] The Figs. 1 and 2 show a preferred embodiment of a winding machine 1 for a musical string 2, comprising a first rotatable clamping device 4 and a second rotatable clamping device 5, wherein the first clamping device 4 and the second clamping device 5 are configured for clamping a string core 7 of the musical string 2 and for rotation about a clamping device rotation axis 6 in a direction of rotation 28, further comprising a feeding device 11 for feeding at least one first winding element 13 in a first feeding direction 15 to the string core 7 during a winding process, further comprising a guide device 16 for predefinable, section-wise guiding of the string core 7, wherein the guide device 16 together with the feeding device 11 is movable parallel to the clamping device rotation axis 6 between the first clamping device 4 and the second clamping device 5, wherein the feeding device 11 and the guide device 16 are configured and interact such that at every point in time during the winding process an actual winding point 17 is formed in the guide device 16,where the first winding element 13 begins to be wound around the string core 7, the guide device 16 having a first contact part 21 with a first contact surface 18 and a second contact part 22 with a second contact surface 19, wherein - in a plane normal to the clamping device rotation axis 6 - the first contact surface 18 is arranged at a first angle α between 55° and 125°, in particular between 65° and 110°, preferably between 75° and 105°, to the second contact surface 19.

[0016] This allows the sound and playability of the second musical string to be predictably influenced and / or adjusted during or through the manufacturing process. This provides expanded possibilities for adjusting, defining, or adapting the sound and playability of a second musical string during or as a result of its manufacture, independent of the materials used, its internal structure, and / or its dimensions. Therefore, it is not necessary to change the materials, internal structure, and / or dimensions to alter the sound and / or playability of the second musical string.

[0017] In known manufacturing methods on previously used winding machines, the deformation and / or deflection of the string core at the current winding point 17, which can also be referred to as the winding point, cannot be specifically controlled or adjusted. During winding, the string core 7 and the first winding element 13 are deformed. These deformations are largely elastic and, depending on the magnitude of the tension force of the string core 7 and the magnitude of the initial tensile force 15 on the first winding element 13, also plastic. This lateral deflection, in conventional manufacturing methods and known machines, depends on the tension force on the string core 7 and the initial tensile force 14 on the first winding element 13.This deformation is further influenced by the angle between the approaching first winding element 13 and the clamping device rotation axis 6, as well as by the position of the current winding point 17 between the two clamping devices 4, 5.

[0018] Using the winding machine 1, this deformation can be preset independently of the aforementioned parameters. The deformation and / or deflection of the string core 7 or the musical string 2 during the manufacturing process can be preset on the winding machine 1 according to the invention without changing the tension force on the string core 7 and / or the initial tension force 15 on the first winding element 13 and / or the angle between the tapered first winding element 13 and the clamping element axis of rotation 6. Furthermore, the deformation and / or deflection can also be preset independently of the position of the current winding point 17 between the two clamping elements 4, 5. This makes it possible to produce musical strings with a predetermined sound and playability.

[0019] This allows the bending stiffness of the finished music string 2 to be predictably influenced. This allows the overtone behavior of the vibrating music string 2 to be predictably adjusted.

[0020] This allows the lateral deflection of the string core 7 from the tensioning device's axis of rotation 6 to be very finely adjusted at the spinning point or the current winding point 17. This also essentially prevents this deflection. Preventing this deflection has a direct influence on the winding process and the vibrational characteristics of the manufactured musical string 2. This enables particularly precise winding of the first winding element 13, as the string core 7 cannot yield unpredictably to the tension 14. This has proven especially advantageous when the tension on the first winding element 13 is varied along the length of the string core 7.

[0021] In the winding machine 1 in question, the string core 7 is not bent, or only slightly bent, during the winding process, thus preventing any return to its original position. This reduces the occurrence of irregular tension in at least one winding layer.

[0022] The winding machine 1 in question allows for more precise winding. This enables the targeted and repeatable formation of a winding layer in which the adjacent turns of the first winding element 13 touch but are not pressed against each other. This allows the first winding element 13 to be produced with a predefinable and highly repeatable distance between the individual turns. This, in turn, allows for the precise adjustment of the internal damping of the music string 2. The internal damping of the music string 2 can be increased to a predefinable degree. This significantly influences the vibration behavior of the music string.

[0023] When sound is produced by bowing, the music string 2 is set into a sawtooth vibration. As can be seen in an FFT, for example, each sawtooth is composed of many sine waves with different frequencies, with the high-frequency vibrations forming the tip of the sawtooth. The tip of the sawtooth directly determines the proportion of different high-frequency vibrations. This sawtooth tip can be shaped as needed by changing the contacts or contact forces between the adjacent windings. This allows for the direct generation of significantly clearer and more distinct high-frequency harmonic overtones. The manufacturing process on the winding machine 1 therefore has a direct influence on the playing and tonal characteristics of the music string 2.

[0024] Some instruments of the violin family produce a so-called wolf tone when excited in certain frequency ranges. The occurrence of a wolf tone causes a breakdown of the regular vibration of the fundamental tone, resulting in an irregular, uncontrollable sound. In the wolf tone range, an instrument is very difficult, if not impossible, to play. The tendency to produce a wolf tone is a characteristic of an individual instrument and not a characteristic of a specific type or genus of instruments. Therefore, not all string instruments exhibit one or more wolf tones. If an instrument, especially a violin or cello, exhibits a very pronounced wolf tone characteristic, this can significantly reduce the instrument's monetary value.

[0025] In addition to the behavior, especially the resonance behavior, of the affected instrument, the occurrence of the wolf tone or its "strength" or "pronouncement" can be influenced by the music string 2, which produces the sound with the relevant fundamental tone.

[0026] The winding machine 1 in question can be used to produce a specific musical string 2, which – in the case of a correspondingly affected instrument – The occurrence of a wolf tone can be completely prevented, or at least its "expression" can be significantly reduced.

[0027] During the manufacturing process in the winding machine 1 in question, the internal damping of the musical string 2 can be preset within a predetermined frequency range, and in particular increased to such an extent that the instrument is damped in this range to such an extent that no wolf tone occurs, or if it does, it is only relatively weak. It should be noted that the relevant frequency ranges are very similar for different types of stringed instruments. For violins, this is the range between 450 Hz and 550 Hz, especially the range between B2 and C2.

[0028] The Figs. 1 and 2 The schematic representations of a physical winding machine 1 for the production of a musical string 2 are shown. Figs. 3 to 7Figure 1 shows different preferred embodiments of the guide device 16 as well as preferred embodiments of certain features of the guide device 16. The proportions shown do not necessarily correspond to the intended actual proportions. For better understanding, individual parts may be shown in a greatly enlarged view or with significantly exaggerated proportions.

[0029] The winding machine 1 is designed and constructed for winding a string core 7 during the manufacture of musical strings 2. A specific musical string 2 is intended for use on a particular type of musical instrument. The winding machine 1 is particularly intended for the manufacture of musical strings 2 for plucked or bowed string instruments. Preferably, the winding machine 1 is not intended for the manufacture of musical strings 2 for instruments that have a separate string 2 for each note and that are not plucked by the musician, but rather pressed against a fingerboard with their finger to produce different pitches. This applies in particular to the piano, the harpsichord, the zither, the harp, and similar instruments. Musical strings 2 for such instruments differ significantly in design from musical strings 2 for plucked or bowed string instruments.Furthermore, these strings also exhibit significantly different requirements, as the respective instruments and the excitation are entirely different. Due to these differences in musical string 2, the manufacturing processes and consequently the machines used to produce them also differ from those designed for the production of musical string 2 for plucked or bowed instruments.

[0030] The winding machine 1 has a machine bed 8. In its basic design, the winding machine 1 resembles a lathe, but exhibits some significant differences. In addition to the machine bed 8, the winding machine 1 has a straight guideway 9 on which a carriage 10 is longitudinally displaceable. Parallel to the guideway 9, the winding machine 1 preferably has at least one clamping guideway 32.

[0031] The winding machine 1 has two rotatable clamping devices 4 and 5, which are arranged opposite each other in or on the winding machine 1. The first clamping device 4 and the second clamping device 5 have a common clamping device axis of rotation 6. Both the guide track 9 and the clamping device guide track 32 are arranged parallel to the clamping device axis of rotation 6.

[0032] The first clamping device 4 and the second clamping device 5 are designed and configured for fastening or clamping a string core 7 of the musical string 2. In a simple embodiment, the first and second clamping devices 4, 5 are designed as hooks.

[0033] The first clamping device 4 and / or the second clamping device 5 are provided for predefinable clamping of the string core 7. At least one of the two clamping devices 4, 5, is arranged on an independent clamping device slide 33, which is longitudinally displaceable on a clamping device guide track 32 arranged parallel to the clamping device rotation axis 6. The clamping device slide 33 can also have a locking device to hold its position on the clamping device guide track 32. The first clamping device 4 is preferably fixedly connected to the machine bed 8.

[0034] The winding machine 1 has at least one drive motor which drives the two clamping devices 4, 5 and is preferably connected to them via a gearbox. In particular, the winding machine 1 has two drive motors, preferably with rotational angle control, each of which drives one of the clamping devices 4, 5. The two clamping devices 4, 5 are driven such that they cause a clamped string core 7 to rotate about its longitudinal extent. If a first winding layer comprising the first winding element 13 is already arranged on the string core 7 and a further winding layer is to be arranged around or on the first winding layer, then the assembly of string core 7 and the first winding element 13 arranged on it will, of course, be set into rotation about its longitudinal extent. The string core 7 orAn intermediate product in the manufacture of the musical string 2 is not twisted or warped during rotation. The rotation takes place in a direction 28, which is in . Fig. 4 is marked.

[0035] In the production of the musical string 2, the rotating string core 7 is helically wound or encased with at least one first winding element 13. For the controlled dispensing of the first winding element 13 during the winding process, the winding machine 1 has a feed device 11, which is arranged on the carriage 10. Preferably, the first winding element 13 is arranged on a spool 34, which is connected to the feed device 11 or the carriage 10, and is taken from or unwound from this spool 34 during production.

[0036] The feeding device 11 has a discharge section 12 against which the first winding element 13 rests and is pulled off for predetermined or controlled dispensing. The discharge section 12 is the last point where the first winding element 13 touches the feeding device 11 as it approaches the string core 7. The discharge section 12 is preferably a rotatably mounted roller. Figs. 1 and 2 The image shows an example of such a role. It can also be arranged in other positions, in particular at different angles to the clamping element's axis of rotation 6.

[0037] At the start of the production of the musical string 2, one end of the first winding element 13 is connected to a string core 7. This is preferably done near the first tensioning device 4. The first winding element 13, now attached to the string core 7, is then tensioned with a predetermined tensile force 14, and the string core 7 is set into rotation. The rotation moves the first winding element 13 away from its source, preferably unwinding it from the spool 34. The predetermined tensile force 14 can be achieved and / or adjusted, for example, by a resistance or brake on the spool 34, so that the first winding element 13 is unwound from the spool 34 with a certain force, hence the tensile force 14. The higher the resistance, the greater the tensile force 14.

[0038] By combining the rotation of the string core 7 and the movement of the feeding device 11 essentially parallel to the clamping device's axis of rotation 6, the string core 7 is wound helically or spirally by the first winding element 13 during the winding process. The contact point where the first winding element 13 touches the string core 7 and begins to be wound around it, and consequently the point where the tensile force 14 acts on the string core 7, is referred to as the winding point 17 or current winding point 17.

[0039] Due to the first winding element 13 now pulling laterally on the string core 7, the string core 7 would be deflected or bent or deformed, as is known from the classical mechanics of the carrier on two support points.

[0040] The winding machine 1 has a guide device 16 for the predefinable, section-by-section guidance of the string core 7. "Guide" is understood in particular to mean that the degree of lateral deflection or bending of the string core 7 due to the tensile force 14 can be predetermined or controlled, preferably prevented.

[0041] During the winding process, the guide device 16 moves parallel to the clamping device's rotary axis 6 together with the feed device 11. The feed device 11 and the guide device 16 are designed and arranged such that the winding point 17 is located within the guide device 16. Lateral deflections of the string core 7 during the winding process, caused by the tensile force 14, are now limited by the guide device 16. The guide device 16 therefore acts as a support for the string core 7 at the current winding point 17.

[0042] The guide device 16 has a first contact part 21 and a second contact part 22. The guide device 16, viewed along the clamping device rotation axis 6 as well as in the Figs. 3 to 6 The illustration shows two and only two contact parts 21, 22. The guide device 16 has no further contact part in this direction. However, in a further embodiment of the invention (not shown), the first and second contact parts 21, 22 can each be designed in two parts, wherein the two parts are arranged one behind the other or in series along or parallel to the string core rotation axis 6.

[0043] The two contact parts 21, 22 each have a surface designed and configured to make physical contact with the string core 7 or the first winding element 13, if the latter is already arranged on the string core 7. These surfaces are referred to as contact surfaces 18, 19 and are, in particular, flat surfaces. The first contact part 21 therefore has a first contact surface 18 and the second contact part 22 has a second contact surface 19.

[0044] The clearance or receiving area for the first winding element 13 between the two contact parts 21, 22 has a length – viewed in a direction along or parallel to the clamping device's axis of rotation 6 – that is preferably between 1% and 14% of the scale length of the musical string 2 to be manufactured. For example, this length can be essentially 11 mm, or approximately 1%, for a scale length of 1100 mm. For a scale length of 215 mm, it can be essentially 30 mm, or approximately 14%.

[0045] It is provided that – in a plane normal to the clamping device rotation axis 6 – the first contact surface 18 is arranged at a first angle α between 55° and 125°, in particular between 65° and 110°, preferably between 75° and 105°, to the second contact surface 19. The two contact parts 21, 22 are therefore arranged relative to each other such that the relevant first angle α exists between their contact surfaces 18, 19. In the Fig. 6In the fourth preferred embodiment of the guide device 16, only the two contact parts 21, 22 are shown, which in this embodiment have no contact with the body. The two contact surfaces 18, 19 are only visible in Fig. 6 with a reference mark. In the Fig. 3, 4 and 6 A first straight line 24 is drawn, which – in the plane perpendicular to the clamping device rotation axis 6 – lies against the first contact surface 18. Furthermore, a second straight line 25 is shown, which lies against the second contact surface 19 in the relevant plane.

[0046] Different first angles α have proven to be particularly advantageous in the manufacture of certain types of musical strings 2.

[0047] The first angle α can be determined solely by the geometry of the two contact parts 21, 22. This is easy to implement and particularly advantageous in the mass production of a specific type of musical string 2. Fig. 3 , 5 and 6 Each figure shows embodiments in which the first angle α is based solely on the geometry of the second contact part 22. The two contact parts 21, 22 are either rigidly fixed or arranged in such a way that they can be moved. However, they are not tiltable or pivotable.

[0048] Fig. 3 Figure 1 shows a first preferred embodiment with a first angle α of essentially 90°. This has proven particularly advantageous for musical strings 2 for violas, which are also called violas, and especially for cellos, which have a higher number of windings and a somewhat higher mass covering than musical strings 2 for violins.

[0049] Fig. 5 Figure 1 shows a third preferred embodiment of the guide device 11, in which the first angle α is approximately 70°. This has proven particularly advantageous for musical strings 2 for violins, which have a relatively small number of windings around the string core 7 and a relatively lower mass than musical strings 2 for cellos. In this embodiment, the first contact part 21 also has a chamfered upper surface over which the first winding element 13 passes. This has proven advantageous when the feed device 11 is not at the same height as the guide device 16.

[0050] Fig. 6Figure 1 shows a fourth preferred embodiment of the guide device 11, in which the first angle α is approximately 105°. This has proven particularly advantageous for musical strings 2 for bass violins, which have a higher number of windings and a higher mass per unit length than musical strings 2 for violins and also musical strings 2 for cellos.

[0051] Preferably, the guide device 16 is designed such that the first angle α can be predefinably varied. This makes it possible to adjust the guide device 16 advantageously for the production of different musical strings 2.

[0052] The setting of different first angles α can be carried out by replacing a contact part 21, 22, in particular the second contact part 22, wherein the guide device 16 is designed to carry out such a change easily.

[0053] Preferably, the first contact part 21 is tiltable relative to the second contact part 22 and / or the second contact part 22 is tiltable relative to the first contact part 21. This allows a change in the first angle α without structural modification of the guide device 16, and therefore without replacing at least one of the contact parts 21, 22. Fig. 4 Figure 1 schematically shows a second preferred embodiment of a guide device 11, in which the second contact part 22 can be tilted, rotated, or pivoted. This is illustrated by curve 40 and the representation of the second contact part 22 in two further positions.

[0054] The tilting capability can be implemented in various ways. Preferably, the guide device 16 – viewed in a plane normal to the clamping device's axis of rotation 6 – is rotatably movable and appropriately mounted. A particularly advantageous mounting is achieved by means of movable attachment via gears in a spherical segment-shaped inner gear.

[0055] According to a further development of the invention, it is preferably provided that the first angle α can be predetermined and changed during the manufacture of a musical string 2. A different first angle α can be predetermined for different positions of the combination of feed device 11 and guide device 16 between the two clamping means 4, 5, and the first and / or second contact part 21, 22 can be pivoted or tilted accordingly to set the predetermined first angle α. For example, in areas near the first clamping means 4, the first angle α can be set to 80°, and then the first angle α can be continuously increased until it reaches approximately 110° at the second clamping means 5.

[0056] Furthermore, different positions of the contact parts 21, 22 have proven to be particularly advantageous in the manufacture of certain types of musical strings 2.

[0057] In a first preferred implementation of the adjustability of the position of at least one contact part 21, 22, it is provided that at least one contact part 21, 22 is slidably arranged or attached. In particular, it is provided that the first contact part 21 is slidable in a first direction 35 parallel to the first contact surface 18. Additionally or alternatively, it can be provided that the second contact part 22 is slidable in a second direction 36, which also runs parallel to the first contact surface 18. By allowing one or more slidable positions of one or both contact parts 21, 22, a wide adjustment range can be achieved with minimal mechanical effort. This allows the guide device 16 for the production of different musical strings 2 to be adjusted to the required dimensions.This allows for adjustments of the diameter of the string core 7 within a range of a few percent, specifically 0.1% to 2%. By fine-tuning the positions of the contact parts 21 and 22 relative to each other, particularly by shifting the second contact part 22, the winding process can be controlled very precisely. It has been shown that such precise positioning, especially of the second contact part 22 relative to the first contact part 21, can have a very significant impact on the manufactured musical string 2.

[0058] In many manufacturing processes, the guide device 16 is positioned such that the clearance for receiving the string core 2, i.e., its longitudinal extent, lies in or is parallel to the clamping device's axis of rotation 6. According to a preferred further embodiment of the present invention, the guide device 16 is rotatably mounted in the plane formed by the first feed direction 15 and the clamping device's axis of rotation 6. Fig. 7The preferred direction of rotation 41 is shown. In a first preferred embodiment, the guide device 16 is pivotable into at least two different positions and can be locked in each position. During the manufacturing process, the guide device 16 is then neither pivotable nor rotatable, but remains stationary. In a second preferred embodiment, the guide device 16 is pivotably or rotatably mounted, and this mobility is maintained during the manufacturing process. This allows for minor compensatory movements.

[0059] The guide device 16, together with the feed device 11, is guided parallel to the clamping device rotary axis 6 between the first clamping device 4 and the second clamping device 5 and is moved during the winding process. The guide device 16 and the feed device 11 can be designed separately and are guided simultaneously by the winding machine 1 by two appropriately coordinated drives.

[0060] The guide device 16 is preferably connected to the feed device 11 by means of a fastening device 39. This fastening device 39 can be designed as a stationary machine component.

[0061] With familiar strings on bowed and plucked instruments, the sound and handling / playability generally change when the musician moves their finger from a so-called low action (corresponding to a lower pitch and consequently a relatively long vibrating section of the string) to a so-called high action (corresponding to a higher pitch and a relatively short vibrating section of the string). Instruments of the violin family always have a fingerboard over which the string runs. The distance between the fingerboard and the string changes along the string's path from the nut and bridge of the instrument. At the nut, this distance is relatively small. At the end of the fingerboard opposite the bridge, this distance is significantly larger, usually two to three times the distance at the nut.These varying distances influence the sound, handling, and excitation characteristics of the musical string, and are a major reason for the different properties of different fundamental tones. Due to these varying distances, when the string is pressed against the fretboard, the string is stretched differently depending on where on the fretboard it is plucked.

[0062] To compensate for this effect, individual parts of stringed and plucked instruments are adjusted accordingly. In particular, with instruments of the violin family, the fingerboard is often shaped differently along its length. This is called fingerboard hollowing. This adjustment must be made individually for each instrument by a luthier. This is a time-consuming, complex, and expensive process for the luthier.

[0063] In a further development of the invention, it can be provided that the distance between the contact parts 21, 22 of the guide device 16 and the clamping device rotary axis 6 is adjustable. The winding machine 1 has an adjustable or adjustable and preferably force-controllable and / or displacement-controllable mounting device 39. The guide device 16 is connected to the feed device 11 by means of the mounting device 39 with an adjustable mounting length.

[0064] The fastening device 39 is designed such that the relevant distance or normal distance can be continuously and predictably adjusted along the length of the string core 7. In particular, such that this distance follows a predictable profile.

[0065] This allows the production of musical strings that, at different vibrating lengths (and therefore when played in different positions), exhibit a sound and / or playability that differs significantly from conventionally manufactured musical strings. This is because the winding machine in question allows for different vibration levels than are achievable with conventional methods. Thus, a musical string can be produced that, at specific fretted lengths or positions, possesses predefined tonal characteristics and / or specific playability.

[0066] This allows for the creation of musical strings that are easily playable even on an instrument with a simple fretboard, i.e., a fretboard without a hollow cut. This can positively influence the sound of simpler and less expensive instruments, thus eliminating the need for the costly work of a luthier.

[0067] This allows the contact forces between adjacent windings to be very precisely adjusted and, above all, predictably varied along the length of the music string 2. This has a direct influence on the bending stiffness of the vibrating length of the music string 2. By adjusting the contact forces, the bending stiffness can be adapted to the vibrating string length, i.e., changed along the length of the music string 2.

[0068] The fastening device 39 includes a corresponding actuator 97. The actuator 97 is, in particular, an electrically and / or pneumatically operated mechanical positioning unit. The electrically operated positioning unit is particularly comparable to a so-called servo from the field of model aircraft. A preferred pneumatically operated positioning unit is, for example, a pneumatic guide cylinder, a pneumatic piston cylinder, and / or a servo-pneumatic positioning system.

[0069] This allows the distance of the guide device 16 or its contact parts 21, 22 to the clamping device rotation axis 6 to be set and predefinable.

[0070] According to a preferred embodiment of an actuator 97, it comprises both a pneumatic actuating unit and an electric actuating unit, the electric actuating unit being arranged on the pneumatic actuating unit. This allows a coarse adjustment to be made with the pneumatic actuating unit, in which the guide device 16 is moved within a predefinable range around a target point. Subsequently, a so-called fine adjustment is carried out with the electric actuating unit. The guide device 16 is thereby very

[0071] In a process for manufacturing a musical string 2 on a winding machine 1, a first end of the string core 7 is attached to the first clamping device 4. A second end of the string core 7 is attached to the second clamping device 5. The clamping devices 4 and 5 are rotated about the clamping device axis of rotation 6.

[0072] The string core 7 is guided in a guide device 16. During the winding process, at least the first winding element 13, which is tensioned with a predefinable tensile force 14, is fed to the string core 7 in the first feed direction 15 by means of the feed device 11. The feed device 11, together with the guide device 16, is moved parallel to the clamping device rotation axis 6 between the first clamping device 4 and the second clamping device 5. During the winding process, the current winding point 17, at which the first winding element 13 begins to be wound around the string core 7, is formed.

[0073] The guide device 16 has a first contact part 21 with a first contact surface 18 and a second contact part 22 with a second contact surface 19, wherein – in a plane normal to the clamping device rotation axis 6 – the first contact surface 18 is arranged at a first angle α between 55° and 125°, in particular between 65° and 110°, preferably between 75° and 105°, to the second contact surface 19. The first winding element 13 is fed to the winding point 17 adjacent to the first contact part 21.

[0074] In a preferred method for manufacturing a musical string 2 using an adjustable fastening device 39, it is provided that the respective normal distance of the guide device 16 to the clamping means rotation axis 6 is continuously changed.

[0075] The above-mentioned procedural steps do not have to be carried out in the order given above.

[0076] The following are principles for understanding and interpreting the disclosure in question.

[0077] Characters are usually introduced with an indefinite article "ein, eine, eines, einer". Unless the context indicates otherwise, "ein, eine, eines, einer" should therefore not be understood as a numeral.

[0078] The phrase "essentially" in conjunction with a numerical value includes a tolerance of ± 10% around the stated numerical value, unless otherwise indicated by the context.

[0079] Value ranges include the endpoints unless the context indicates otherwise.

Claims

1. Winding machine (1) for a musical string (2), comprising a first rotatable clamping device (4) and a second rotatable clamping device (5), wherein the first clamping device (4) and the second clamping device (5) are designed for clamping a string core (7) of the musical string (2) and for rotation about a clamping device rotation axis (6) in a direction of rotation (28), further comprising a feeding device (11) for feeding at least one first winding element (13) tensioned with a predefinable tensile force (14) in a first feeding direction (15) to the string core (7) during a winding process, further comprising a guiding device (16) for predefinable section-wise guiding of the string core (7), wherein the guiding device (16) together with the feeding device (11) is movable parallel to the clamping device rotation axis (6) between the first clamping device (4) and the second clamping device (5),wherein the feed device (11) and the guide device (16) are designed and interact such that at every point in the winding process a current winding point (17) is formed in the guide device (16), wherein at the current winding point (17) the first winding element (13) begins to be wound around the string core (7), wherein the guide device (16) has a first contact part (21) with a first contact surface (18) and a second contact part (22) with a second contact surface (19), wherein the two contact surfaces (18, 19) are provided and designed to make physical contact with the first winding element (13) already arranged on the string core (7), characterized by the fact thatthe guide device (16) at the current winding point (17) is a support for limiting lateral deflections of the string core (7) during the winding process due to the tensile force (14), and that - in a plane normal to the clamping device rotation axis (6) - the first contact surface (18) is arranged at a first angle (α) between 55° and 125°, in particular between 65° and 110°, preferably between 75° and 105°, to the second contact surface (19).

2. Winding machine (1) according to claim 1, characterized by the fact that the guide device (16) is designed such that the first angle (α) can be predetermined and changed.

3. Winding machine (1) according to claim 2, characterized by the fact that the first contact part (21) is tiltable relative to the second contact part (22) and / or the second contact part (22) is tiltable relative to the first contact part (21).

4. Winding machine (1) according to one of claims 1 to 3, characterized by the fact thatthe guide device (16) is mounted to allow rotation in the plane formed by the first feed direction (15) and the clamping device rotation axis (6).

5. Winding machine (1) according to one of claims 1 to 4, characterized by the fact that the first contact part (21) and / or the second contact part (22) is slidably attached.

6. Winding machine (1) according to claim 5, characterized by the fact that the first contact part (21) is displaceable in a first direction (35) parallel to the first contact surface (18).

7. Winding machine (1) according to claim 5 or 6, characterized by the fact that the second contact part (22) is displaceable in a second direction (36) parallel to the first contact surface (18).

8. Winding machine (1) according to one of claims 1 to 7, characterized by the fact that the guide device (16) is connected to the feed device (11) in such a way that a distance between the guide device (16) and the clamping device rotation axis (6) can be predefinably changed.

9. Winding machine (1) according to claim 8, characterized by the fact that the guide device (16) is connected to the feed device (11) by means of a fastening device (39) with adjustable fastening length.

10. Method for manufacturing a musical string (2), in particular with a winding machine (1) according to any one of claims 1 to 9, wherein a first end of a string core (7) of the musical string (2) is attached to a first clamping device (4), wherein a second end of the string core (7) is attached to a second clamping device (5), wherein the clamping devices (4, 5) are rotated about a clamping device rotation axis (6), wherein a predetermined section of the string core (7) is guided by a guide device (16), wherein in a winding process at least one first winding element (13) tensioned with a predetermined tensile force (14) is fed to the string core (7) in a first feed direction (15) by means of a feed device (11), wherein the guide device (16) together with the feed device (11) is moved parallel to the clamping device rotation axis (6) between the first clamping device (4) and the second clamping device (5),wherein at each point in the winding process an actual winding point (17) is formed at which the first winding element (13) begins to be wound around the string core (7), wherein the guide device (16) has a first contact part (21) with a first contact surface (18) and a second contact part (22) with a second contact surface (19), wherein the two contact surfaces (18, 19) make physical contact with the first winding element (13) already arranged on the string core (7), wherein the first winding element (13) is supplied to the winding point (17) in contact with the first contact part (21), . characterized by the fact thatLateral deflections of the string core (7) during the winding process due to the tensile force (14) are limited by the guide device (16) forming a support, such that - in a plane normal to the clamping device rotation axis (6) - the first contact surface (18) is arranged at a first angle (α) between 55° and 125°, in particular between 65° and 110°, preferably between 75° and 105°, to the second contact surface (19).

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