DE3413765A1 - Method for attaching frets to the fingerboard of plucked stringed instruments, and fret unit or frets to be attached to the fingerboard in this method - Google Patents

Abstract

A method is indicated for attaching frets to the fingerboard of plucked stringed instruments such as guitars, mandolins, banjos and the like, and a fret unit or frets to be attached to the fingerboard in this method, wherein the frets, which are designed with a bearing surface on their underside, are attached to the fingerboard, which is designed on its upper side with a surface which is uninterrupted, i.e. free of incisions, by solid surface-to-surface connection, e.g. by bonding. In addition to individual attachment of the frets, it is possible to affix these in their entirety to the surface 26 of the fingerboard 21, the frets 22 being secured at their ends to connecting bars 40 and this unit, with the bearing surfaces of all the frets 22, being secured on the surface of the fingerboard by surface-to-surface connection in such a manner that all the frets project, with their two ends supporting the connecting bars, approximately equally beyond the two lateral edges of the fingerboard 21, and the frets are cut to size after being attached to the fingerboard surface, along the lateral edges of the fingerboard. <IMAGE>

Description

A method of applying frets on the Grif fbrett of plucked string instruments, as well as to be attached in this process on the fingerboard fret-unit or frets

The invention relates to methods for attaching frets to the fingerboard of plucked string instruments, like guitars, mandolins, banjos etc.

With plucked musical instruments (guitars, mandolins, banjos, etc.), so-called Frets built into the fingerboard. In earlier centuries, then strings were used around the for this purpose Instrument neck tied, from which the name "Bund" is derived. In today's practice, the Manufacture of such plucked musical instruments a pils-shaped one Profile wire made of brass or nickel silver used as a 3undstabchen, which has a flat bar. This bridge is tapped into a groove previously made in the fingerboard. While this offers the advantage of a precise, immovable attachment method. However, it is also associated with a number of significant disadvantages When the profile wire is pounded in, this creates unevenness in the area intended for pressing the strings Surface or upper edge. The frets must therefore be dressed after assembly and the profile reworked will. The incisions in the fingerboard (grooves) can only be made in a very complex and precise manner in relation to the bridge profile and cut at a precise distance from one another. If the notches are too narrow, the fingerboard will break when tapping in of the fret bar wedged backwards. If the incisions are too wide, the frets will not

Dipl.-Phys. Heinrich Seids · Patent Attorney · B-irrjtadte? HöhcT.5 · Pbstfach 3105 ■ ύ200 Wiesbaden 1 · ® "(0 6121) 56 2022

held on sufficiently. The fretboard is weakened by the incisions and against the string tension unstable, especially if the incisions are too wide.

From US-PS 2,795,988 and DE-OS 30 28 624 it is known to form the fingerboard in several layers, namely with a lower part, on this lower part attached cuff units and slotted receiving portion attached over the fret units through the same Slit the collar profile through to the upper side of this receiving part that forms the fingerboard surface extends beyond. It is also known from DE-OS 30 28 624, a on the fingerboard lower part Carrier plate forming the entire fingerboard surface apply, in which the frets are formed as transverse ribs.

These known training options for the fretted fingerboard avoid cutting into it of grooves in the fingerboard. However, these training opportunities are complex and result in a number other shortcomings and disadvantages. In particular, the instruments with a fingerboard designed in this way lack the Essential grip on the fingerboard and neck of the instrument for playing the instrument.

... In contrast, it is the object of the invention, method as well To propose fret units and frets in general that are simple and yet precise the frets on the surface of the fingerboard without the need for any weakening on the fingerboard enable. Swelling or drying of the wood from which the fingerboard is made should also be attached and Do not adversely affect fastening of the frets.

Dipl.-Phys. Heinrich ire-ids - Patenlanv.alt rii.li.iljj.cj Höh.- 15. Posff.icfi-MÖ5 o200 Wiesbaden 1 ^ (0 61 21) 56 20 22

"_ o - 3A13765

According to the invention, this object is achieved by a method for attaching frets to the fingerboard solved, "in which the fingerboard on its upper side with uninterrupted, i.e. free of incisions. executed surface and the frets are formed with a landing surface on their underside, and in which further a firm surface bond between the contact surface of the Fret and the fret bearing areas of the fingerboard surface is generated. This solid Surface binding can be created by gluing. If the fingerboard has a plastic overlay, one can Such a firm surface binding can also be produced by sealing or welding the frets on.

This enables the frets to be attached simply and precisely to the surface of the öriff board. Included there is no need for a weakening on the fingerboard, so that in the known method through the incisions in the Fretboard for inserting the frets resulting disadvantages are avoided. Another advantage of the invention The process is that swelling or drying of the fingerboard is not detrimental to attachment and fastening the frets.

In addition to solving the problem posed, the method according to the invention offers the advantage that the frets when applied to the fingerboard did not experience any damage and therefore included from the start their final optimal profile can be formed. If after frequent use of the Instruments, i.e. frequent pressing of the strings, can be removed by deliberate detachment can be easily removed from the fingerboard and renewed.

Dipl.-Phys. Heinrich Seids. Patent attorney · Ev-nt-i-i ^ eT Höhr-lS · Postfadi "3105 ■; 200 Wiesbaden 1.

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It is also within the scope of the invention that the entirety all frets to be attached to a fingerboard as a ladder-shaped unit with two lateral connecting bars with something, for example 1 to 3 cm larger. Length of the frets is designed as the width of the fingerboard, this unit with the contact surfaces of all frets is attached to the surface of the fingerboard in surface binding in such a way that all Fret chopsticks with their two ends carrying the connecting bars approximately evenly over the two side edges of the fingerboard, and the frets along the fingerboard surface after they are attached cut off the side edge of the fingerboard. It is recommended that the frets are made by means of intentional, detachable adhesive connection on the fingerboard surface be attached. This significantly simplifies and shortens the time required for the attachment process, since the two lateral connecting struts a defined distance between the individual frets is guaranteed, so that these can be applied to the fingerboard in their entirety in one operation.

By the measure that frets mean willed releasable adhesive connection on the fingerboard surface attach, the possibility is also created that the player himself removes the used frets and can easily be replaced by new ones.

In a further embodiment of the method according to the invention it is provided that the frets for Formation of the ladder-shaped unit in something, for example 2 to 4 cm longer than the width of the fingerboard and cut with both ends in this way

Dipl.-Phys. Heinrich Seids · Patent Attorney · BVnfHc-cr Höhr "15 · rostfach 3105 · C200 Wiesbaden 1 · ®" (0 6121) 56 20

When the fret feet are attached in a precise position on the fingerboard, the replaced The right distance between the frets from the start.

As a fret unit for attaching the frets to the fingerboard, it is after another thought the invention provided that the frets formed in greater length than the width of the fingerboard in the exact spacing arrangement for the fret arrangement on the fingerboard at each end, one at a time Connecting bar are attached.

It is conceivable that these connecting bars connected to the ends of the frets are in turn at their ends are connected with cross rods, so that the entire unit is assembled into a solid frame. To next to the given by this ladder-shaped unit The spacing between the frets also ensures an exact arrangement of the frets on the fingerboard, can be arranged in this frame-like fret unit of the upper transverse web or stiffening web that the The upper crossbar forms the system on the saddle, i.e. on the transition piece from the fingerboard to the pegboard. After gluing the frets onto the top of the fingerboard, the ones that protrude laterally over the fingerboard will be The ends of the frets are cut off.

According to a preferred embodiment of the invention is it is provided here that the entirety of all frets and the connecting bars are made in one piece are. The entire unit can be manufactured from plastic in an injection molding process, e.g. from polyamide plastic or polyester or similar plastics.

Dipl.-Phys. Heinrich Seids · Patent Attorney - Biprstv ^ e * Height .15 · Plostfacfi 310S ■ CZOO Wiesbaden 1. ® "(0 6121) 56" ¹ O 22

be used firmly but removably in substantially rigid connecting spars that the mutual clear spacing of the connecting bars something, for example 1 to 3 cm larger than the width of the fingerboard and the mutual spacing between the frets is exactly that to be produced Corresponding to the fret arrangement on the fingerboard, and that the fret remains are cut off can be removed from the connecting bars.

This enables the frets to be attached efficiently to the fingerboard. First, the individual frets are inserted ^{into the frame consisting of the two connecting bars 1.} The frets already have the desired spacing from one another, so that there is no need for complex manual alignment. In the next step, the frets inserted in the frame are glued to the fingerboard and then their ends that protrude beyond the fingerboard are cut off. The fret remains are then removed from the connecting bars so that the frame can be filled with new frets again. This procedure also enables more efficient and thus more cost-effective production to be achieved with connecting bars that can often be used for the respective guitar type.

According to a further proposal of the invention it is provided that the frets with a fret foot are formed whose connection with the actual fret part is deliberately releasable, the fret foot in the exact position on the fingerboard surface permanently attached and the actual fret part exchangeably attached to the fret foot, for example put on will. This allows used frets to be easily replaced with new ones. Since the federal

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Pipl.-Phys. Heinri.-h Seals- patent attorney ■ Ρ'λγϊΙί l't "- Hoh.- Ϊ5 ■ Kistt.idi .5JÖ5 · .200 Wiesbaden 1 &? | 'Ο61? 0 5n Η ~> 2 ^Ί

After cutting off the protruding fret ends, the can then be made from the stiffening webs and the connecting bars formed frames are thrown away.

It is also within the scope of the invention that the ribbon sticks and the connecting bars are made of plastic and the frets have a stiffening core made of solid Material, for example metal, contained in the middle Part deT ~~ Bühdstäbchen is arranged and lower Length than the width of the fingerboard. With such a design, among other things, high dimensional stability can be achieved and the strength of the frets. By making the reinforcement wire shorter too The only plastic ends of the frets can then be chosen as the width of the fingerboard on the one hand, can be conveniently cut off without stressing the cutting tool, and on the other hand the metal reinforcement core is not exposed.

Another idea of the invention is that the frets are sufficiently flexible on their upper side are designed so that each pressed-in string with the temporary formation of a depression in the upper edge of the fret. When a string is pressed against such a fret equipped according to the invention the string is gripped on both sides by the upper edge of the fret, swinging to the side is made impossible. Alternatively, it is also possible according to the invention that the frets on their The upper edge is toothed or corrugated.

As a fret to be attached to the fingerboard of a plucked string instrument, it is according to the invention possible that the fret foot extends strip-like over the entire length of the rod on the The bottom is the contact surface for the surface connection

Dipl.-Phys. Heinrich Seids. Patent attorney. Bierstadter Höhe IS · PO Box 5105 · 6200 WiesbadeiQl / Qf (»9Π20 T8 2Q2 ·»

- 13 - OH) C > 7 OQ "

carries with the fingerboard surface and is provided on the upper part with Einrich lines for attaching the actual fret part. This design of the frets with a strip-shaped foot with devices arranged on its upper part for attaching the actual fret is an optimal adaptation of the fret with respect to its wear resistance to the respective conditions, such as guitar and string type can be achieved.

In the context of the invention, the fret foot can in the region of its upper edge have a receiving groove extending in its longitudinal direction into which the actual fret part is used in the manner of a contact element for the strings. This receiving groove enables it to replace the contact element for the strings from time to time. Another substitution option can be achieved in that the fret foot has a support strip in the area of its upper edge, on which the actual fret part is placed in the form of a strip-shaped contact element for the strings is. In an even simpler embodiment, the invention provides that the fret foot in the area of his Top edge with a possibly renewable from time to time Covering is provided, which forms the actual fret part as a contact element for the strings. This covering can be formed by brushing on a plastic compound. If the topping is used up, it can scraped off and renewed by brushing on plastic compound.

In a continuation of the inventive idea, the Fret foot and / or the actual fret part made of flexible material, for example plastic, consist and the fret foot and / or the actual

Dipl.-Phys. Heinrich Seids. Patent Attorney Bier.stadter Höhe IS l'oslindi 5105 - 6200 Wiesbaden 1> § £ te (jnj2M 6 * 20

Fret part reinforcement elements, for example made of metal.

In order to prevent the string from swinging to the side on the upper edge of the fret, it is necessary to go further Thoughts of the invention possible that the actual fret part at its upper edge is sufficient is designed to be resilient, so that each pressed-in string is temporarily formed into a depression the upper edge of the fret sticks in. Another possibility for fixing the strings is achieved in that the actual fret part is serrated or corrugated on its upper edge that forms the system for the strings is.

The invention is explained in more detail below with reference to the exemplary embodiments shown in the figures. Show it:

Fig. 1 shows a guitar according to the invention in perspective Depiction;

FIG. 2 shows a section through the guitar neck according to - 2-2 of FIG. 1 on an enlarged scale;

Fig. 3 shows the section through a fret in

modified embodiment; 4 shows the cross section through a fret

in a further embodiment; Fig. 5 is a section through the guitar neck

according to 5-5 of Figure 1 on an enlarged scale;
FIG. 6 shows an enlarged partial illustration of the area 6-6 of FIG. 5 in an embodiment of the invention;

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Dipl.-Phys. Heinrich Seids · Patent Attorney - BieTstadter Höhe IS · Pös'hach 5105 "· 620Ü Wiesbaden ϊ" - ® "(O 61 21) 56 20

FIG. 7 shows an enlarged illustration of the area 6 of FIG. 5 in a second

Embodiment of the invention;

8 shows a guitar according to the invention in perspective Representation with ladder-shaped

Fret unit; 9 shows a representation of a fret

jDrofils in one embodiment of the

Invention and

10 shows a representation of a fret profile

in a modified embodiment.

In the example of Figure 1, a guitar 10 is shown, consisting of a body 11 and a neck 12 with it subsequent vertebral board 13. The one which forms the lateral peripheral walls of the body 11 and has a waist-like constriction 16 provided frame rim 14 is closed by the ceiling 15 and the bottom, which is not visible in the figure. The ceiling 15 is provided with a sound hole 17 and has one between the sound hole edge and the lower body edge arranged bridge 18 with tailpiece 19 on. The side of the neck facing the strings 20 is used as a fingerboard 21 and provided with the frets 22. At the transition between the neck 12 and with the vertebrae 23 provided vertebral board 13 is the web 24.

In Figures 2 to 4 are various training options for the profile of a fret 22 shown. To ensure that the frets are tapped into the grooves of the To avoid fingerboards, it is provided that 'the frets 22 as profile rods with a lower mounting surface 25 and formed on this fastening surface with the uninterrupted surface 26 of the fingerboard 21 are glued. The frets are individually and in the by the scale template predetermined mutual distances on the

COPY j

Dipl.-Pl.yi »Heinrich Sciils. l'ntuulanw,])! ■ llirrstadlcr Hohe Ki · -. '. V.tr.r.li Mus n200 VYicsKuicnl · W' (D (O /!) Sj _1. 202 '

-16- 3413785 "

Fingerboard surface 26 glued on.

In the example of Figure 2 it is provided that a strip-shaped fret foot 27 made of metal on the Fingerboard surface 26 is glued. This fret foot 27 is used as the actual fret part a strip-shaped contact element 32 is pushed on and, if necessary, easily glued on or by gluing on the end face Cover plates secured. This strip-shaped contact element 32 is also in the example shown in FIG Made of metal and to prevent the string from swinging sideways at its upper edge toothed or corrugated.

In the profile training shown in Figure 3 is the the fret foot widening towards the fingerboard surface 26 25 made of plastic. A reinforcing element is inside the fret foot 27 molded in the form of profile rods made of metal, for example brass. In the area of its upper edge is the The fret foot 27 is provided with a flexible plastic covering 29. This plastic covering 29 can e.g.

can be applied by brushing or pulling on and renewed from time to time if necessary. While with the The example shown in FIG. 2 shows a corrugation or toothing of the upper edge of the system element 32 for guidance the side has been used, this is achieved in the embodiment shown in Figure 3 in that the pressed string with the temporary formation of a depression in the upper edge of the plastic covering 29 pushes in.

ι COPY

Dipl.-Phys. Heinrich Seids · Patent Attorney · Bierstadter Höhe 15 · P.O. Box 5105 · 6200 Wiesbade ^ l , & {ΒήΜΙ} S * 20 22

In the example of FIG. 4, the fret foot 27 is as in FIG "Example of Figure 2 made of metal, for example brass, made and with" an adhesive layer on the fingerboard surface 26 attached. In the area of its upper edge, this fret foot 27 has a in its In the longitudinal direction extending receiving groove 30, in which as the actual fret part a strand-shaped Attachment element Ti is retracted or depressed * This Contact element 31 can for example consist of plastic and is circular in the example shown Cross-section. The receiving groove 30 is formed with undercuts so that the contact element 31 is held in place is, but can be removed from the receiving groove 30 with elastic deformation.

In the figures 5 to 7 different top designs of the frets are shown. The in Figure 5 shown example as a section through the guitar neck 12 according to 5-5 of Figure 1 is the fret its upper edge to be brought into contact with the strings 20 is provided with a corrugation 33 which extends in the longitudinal direction the strings 20 lies. As FIG. 6 shows, the string 20 lies against the fret 22 when it is pressed Via one of the grooves 34 between two ribs 35. As a result, the string 20 is held on the side and on the side Swinging out prevented. In the example in FIG. 6, the corrugation has a triangular profile. However, there are too other profiles conceivable, for example a wave-shaped profile with rounded wave troughs and _ pointed wave crests and the like.

FIG. 7 shows a modification in which the fret bar 22 is to be brought into contact with the strings 20 Upper edge is relatively soft and flexible.

Dipl.-Phys. Heinrich Seids. Patent attorney. Bierstadter Höhe IS "·? Ü.stiadi SlOS '· 620ύ WiesbTaJefcl. <Ξ? To <Ä2Ü 5 £ 20 % ->

- 19 - 3413/65

41 of the fret unit 39 is arranged so that it -the system on between the fingerboard 21 and pegboard 13 located-saddle 24 forms. After sticking the frets 22 on top 26 of the fingerboard 21 are those that protrude laterally beyond the fingerboard 21 Ends of the frets 22 cut off. The one from the stiffening webs 41, 42 and the connecting bars The frame formed 40 can then be discarded in the one-piece embodiment.

. In principle, however, it is also possible that such a Frame is made for the respective guitar type for frequent use. This can be done, for example, by a Achieve two-part design of the connecting spars 40 with corresponding receiving devices for insertion the already cut frets 22 are provided. After cutting off the glued-on frets 22 the remains can then be removed from the connecting bars, so that this frame with frets can be filled again.

FIG. 9 shows a possible profile of a plastic fret suitable for a fret unit 39 shown. On its underside 25 is this fret 22 by means of an adhesive layer on the Fingerboard surface 26 applied.

Figure 10 shows a modification of a possible profiling of a fret 22, which is also made of plastic consisting in its interior has a reinforcing core 28 in the form of a reinforcing wire. This reinforcement core 28 should be a little shorter than the width of the notice board 21, so that when shortened the glued on Frets 22 merely need to cut the plastic along the fingerboard edges and the reinforcing core 28 is not exposed.

Dipl.-Phys. Heinrich Soids · Patent Attorney · Bierstadtcr Höhe l.s · Tostr-uh 5105 - 6200 Wicsb ^ dfit.I. ^? foi ^ JA 5 * 2022

The string 20 pressed onto the upper edge of the fret 22 is temporarily pressed somewhat into the upper edge of the fret 22 and displaces elastically flexible material on both sides, so that on both sides of the depressed depressions 36 slight elevations 37 form, the depressed Grasp string 20 at the side and prevent it from swinging to the side. When string 20 is released, they go Reinforcements 36 and the side elevations 37 essentially 'back again, and after prolonged use the depressions 36 and the side elevations 37 remain to a certain extent. But this is not a disadvantage, since the strings 20 are fixed in their normal position above the frets 22 and therefore When you press the fret, you always come back to the same place, so either back into the gleidre Groove 36 or the same depression 37.

The example shown in Figure 8 relates to the attachment of the frets 22 by means of a frame-shaped or ladder-shaped fret unit 39.

The frets 22 have connecting bars at both ends 40 connected, the position of the individual frets among each other already the desired Scale division corresponds. As shown in the example of Figure 8, the connecting bars 40 are at their ends also connected to transverse webs 41, 42 to form a fixed frame. It is possible to make the entire unit off Manufacture plastic by injection molding, for example from nylon, i.e. polyamide plastics or polyester or similar plastics.

To fix the fret unit 39 on the fingerboard 21, it is in the example shown in FIG provided that the upper transverse web or stiffening web

PATENT ADVOCATE DIPL.-PHYS. HEINRICH SEIDS

6200 Wiesbaden 1 ■ Bierstadter Höhe 15 ■ P.O. Box 5105 · Telephone (o 61 21) 56 20 Postal check Irankfurt / Maln 181008-602 Bank Deutsche Bank 306571 Nass. Sparkasse 120040995

Wiesbaden, April 10, 1984 H 586 VNR: 107565 Dr.M / ha

Dieter Hopf Platter Strasse 67 D-6204 Taunusstein 4

Method for attaching frets to the fingerboard of plucked string instruments as well as in this procedure on the fingerboard Fret unit or frets to be attached

List of reference symbols

10 guitar

11 body

12 guitar neck

13 pegboard

14 - frame rim

15 ceiling

16 hip-like constriction of the frame rim

17 soundhole

18 bridge

19 tailpiece

20 strings

21 fingerboard

22 frets

23 vertebrae

24 saddle

25 Contact surface of the fret on the fingerboard

26 fingerboard surface

Dipl.-Phys- Heinrich Seids · Patent Attorney · Bierstadter Höhe 15 - -P «? Ff? Ch 51P5- ■ 62CW Wiesb-a-ien 1- ®" (O 6121) 56 20

27 fret foot

28 reinforcement core

29 topping

30 groove

31 Investment element

32 strip-shaped '' plant element

33 corrugation

34 teeth

35 teeth

36 indented indentation

37 slight elevation

38 strip-shaped contact element

39 fret unit

40 connecting bars

41 upper crossbar

42 lower crosspiece

- blank page -

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Claims (18)

PATENTANWALTOTPL .'- PHYS; "HEINRICH SEIDS Wiesbaden ι · Bierstadter Höhe 15 ■ Postfach 5105 · Telephone (o 6121) 56 20 22. Postscheck Frankfurt / Main 181008-602 · Bank Deutsche Bank 306571 · Nass. Sparkasse 1200409g ·; Wiesbaden, den 1G. April 1984 H 586 VNR: 107565 S / ha Dieter Hopf Platter Straße 67 34 13765 ■ D-6204 Taunasstein 4 j Procedure for attaching frets to the fingerboard of plucked string instruments as well as the fret unit or fret unit to be attached to the fingerboard. Frets; Claims 1) A method of applying frets on the handle-j board of plucked stringed instruments such as guitars, \ mandolin, banjo etc. ' characterized in that; the fingerboard at its top with uninterrupted,
ie a surface made without incisions and the frets on their underside formed with a contact surface and that a solid surface bond between the contact surface of the frets! and the areas of the; Fretboard surface is created. : 2) Method according to claim 1, characterized in that
the surface bond between the fingerboard surface
and the attachment surface of the frets by gluing
is produced. COPY Dipl.-Phys. Heinrich Seids. Patent attorney Bjcrjitsil'.er HöhsJ'S Kbstfacfi SiO? · Ϊ200 Wiesbaden 1 · ® (0 6121) 56 20 22 ..- ■ 3) Method according to claim 1 or 2, characterized in that that the entirety of all frets to be attached to a fingerboard as a ladder-shaped unit with two lateral connecting bars with a length of 1 to 3 cm longer for the frets, for example is designed as the width of the fingerboard, this unit with the contact surfaces of all frets is attached to the surface of the fingerboard in surface binding such that all frets with its two ends carrying the connecting bars approximately evenly over the two side edges of the The fingerboard protrudes, and the frets after attaching to the fingerboard surface along the Fretboard side edges are cut off. 4) Method according to claim 3, characterized in that the frets by means of a deliberately releasable adhesive connection attached to the fingerboard surface. 5) Method according to claim 3 or 4, characterized in that the frets to form the ladder-shaped Unit cut into something, for example 2 to 4 cm, longer than the width of the fingerboard and with their two ends in this way fixed, but removable, in substantially rigid connecting struts are used in such a way that the mutual clearance between the connecting bars is something, for example 1 to 3 cm larger than the width of the fingerboard and the spacing between the frets is exactly that The fret arrangement to be made on the fingerboard correspond, and that the cut-off fret remnants from the connecting bars again removed. Diploma Phys. Heinrich Seids. Patent attorney - Bicrstadro-Hohns · Postfach "5105 · 0200 Wiesbaden 1 · ®" (0 6121) 5620 6) Method according to claim 1 or 2, characterized in that the frets with a fret foot be formed whose connection with the actual fret part is deliberately releasable, the The fret foot is permanently attached in the exact position on the fingerboard surface and the actual Fret part replaceably attached to the fret foot, for example put on. 7) Fret unit for attaching frets to the fingerboard of a stringed instrument in the process according to claim 3 or 4, characterized in that / IR is greater in length than the width of the fingerboard (Jt) trained frets (AwL) in the exact spacing arrangement for the fret arrangement on the fingerboard at each end on each a connecting spar (^ iO) are attached. 8) fret unit according to claim 7, characterized in that the entirety of all frets and the connecting bars (HO) made in one piece are. 9) fret unit according to claim 7 or 8, characterized in that the frets (3, X) and the Connecting bars (VO) are made of plastic and the frets have a reinforcing core ($ 3) · ■■ contain solid material, for example metal, which is arranged in the middle part of the frets and has a shorter length than the width of the fingerboard (21). COPY Ρφΐ.-Phys. ll.Mnrl.il .Vi Ι ·. · I'.iti'titAinv.sll · Κι. ι, Ia-I.ti I löli «· | ·> · I, .-. ll.i.li MUS r.'lu) VVn- ImiI.-ii I. Ή? (OM .'I). '. Ο.'ιΐΛ'. 10) fret unit according to one of claims 7 to 9, characterized in that the fret tabchen [ <XX) are designed sufficiently flexible at their upper edge that s I every pressed-in string (0.O) with the temporary formation of a recess (3 & ) into the - upper edge of the fret (J2Q.). 11) fret unit according to one of claims 7 to 9, characterized in that the frets [Qä. ) are toothed (SM, "SS) or corrugated (S3) on their upper edge. 12) frets for attachment to the fingerboard of a plucked string instrument in the method according to claim 5 or 6, characterized in that the fret foot (.27) is strip-shaped over the entire Fret length extends, on the underside the contact surface (2S) for the surface connection with the Fretboard surface (2 &) carries and on the upper part is provided with facilities for attaching the actual fret part (Ger, "31," ia.). 13) frets according to claim 12, characterized in that the fret foot (21 ) in the region of its upper edge has a longitudinally extending receiving groove (3o) into which the actual fret part (31) in the manner of a contact element for the Strings (ao) is used. 14) frets according to feel 12, characterized in that the fret foot (XI) in the region of its upper edge has a support strip (3%) on which the actual fret part is placed in the manner of a strip-shaped contact element (3ä) for the strings ) is. Dipl.-Phys. Heinrich Seids. Patent attorney · Fi-reltirte Höhl · "IS · Postfach'3105 - C200 Wiesbaden 1 · &" (0 61 "» l) - 56 20 22 15) frets according to claim 12, characterized in that the fret foot (JM>) is provided in the area of its upper edge with a possibly from time to time renewable covering ^ which is the actual Bun.d-> chop part (JL ⁰ I) forms as a contact element for the strings (50). 16) frets according to one of claims 12 to 15, characterized in that the fret foot (and / or the actual fret part (made of flexible material, such as plastic, and the fret foot (5 * ^) and / or the actual fret part ( 3 * \ ) contains reinforcing elements [JiZ], for example made of metal. 17) frets according to one of claims 12 to 16, characterized in that the actual fret part (32,) at its upper edge is sufficient is designed to be resilient that each pressed-in string (JlO) with the temporary formation of a Tiefungvin presses in the upper edge of the fret. 18) frets according to one of claims 12 to 16, characterized in that the actual fret part (ZQ. ) At its top edge forming the system for the strings (JLO) is toothed (3H ₁ 35) or corrugated (33). 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