KR20090106523A - Foldable guitar - Google Patents

Abstract

A self aligning folding guitar comprises a neck portion, and a body portion connected together with a Soss hinge. The Soss hinge may be mounted in a seat with flat sides. The hinge may be covered by the fretboard of the stringed instrument. The hinge is mounted to the neck portion and the body portion. A firsi^ alignment member is secured to the neck portion. A second alignment member is secitred to the body portion, the second alignment member meeting with the first alignment member at a substantially fixed position. A securement member secures the first alignment member to the second alignment member to secure the neck: of the guitar in place.

Description

Foldable Guitar {FOLDABLE GUITAR}

The present invention relates to a foldable guitar having a position fixing mechanism.

The production of sound producing instruments began with the study of the mechanical closest to a human voice. Indeed this was the standard of the Renaissance and modern times, through the Middle Ages.

Stringed instruments have been known since ancient times. These included lutes, ie guitar instruments with resonance parts and fingerboards. Among the art collections, bronze art works of the New Kingdom (Ancient Egypt, 1380 B.C.E.) bend one knee in one posture, the upper left hand manipulates the high fingerboard, the right hand bounces the strings, and the toe is raised and dancing. Depicts Bian, which can be an example of a modern rock musician.

However, the lute, which may have originated from the Western Seminomadic people who spread musical instruments to Mesopotamia, has a much longer history, and archaeological records date back to the Akkad period (2350-2170 B.C.E.), presumably the medieval Hyksos dynasty (15-17 generations). At the end of the dynasty, 1730--1580 B.C.E., it was told to the Egyptians.

In recent years, lute string instruments have become one of the most popular musical instruments. Folk artists throughout the United States have sometimes used their handmade guitars in a wide range of musical genres, including blues and bluegrass.

Unlike percussion, the need for the amplification of relatively weak sound sources of strings, leads, and trembling human lips has been a challenge for early musical instrument manufacturers. This challenge has been mainly solved by a resonance system that mechanically collects, concentrates, and outputs sound sources. If a high quality sound source can be produced, demanding standards for the stability of the instrument are required.

In addition, over the years, acoustic string players have introduced a wide variety of state laws into their music. If the ancients would only have bounced the strings of the lute to obtain a decaying evenness, later artists used their bows to produce relatively constant but somewhat controllable amplification. Modern artists use a variety of techniques to play. Acoustic Blues players can tap the instrument with their fingertips, palms or finger joints. Strings can also bounce in a violin configuration, which is typically played by sliding a bundle of horse hair across a string. Because of this, greater mechanical stability of the instrument is required.

Because of the popularity of stringed instruments, especially guitars, people often take the guitar with them when traveling. However, string instruments are bulky and not suitable for convenient transportation. Stringed instruments are also not easy to place in the cabin smuggler space or under the cabin seats. In response to this problem, a guitar with a folding neck has been proposed. In this regard, see, eg, US Design Registration No. 516,114, and pending US Patent Application No. 11 / 640,095, filed December 15, 2006. The instrument is effective, but quite difficult to handwork and make precise adjustments.

Accordingly, there is a need for string instruments such as guitars, violins, etc., which are capable of consistently and accurately converting artistic expression into sounds or other acts, and are easy to use and easily transportable in performance. It is believed that the structures disclosed herein are the most effective means in providing an instrument with a high degree of mobility that can be adjusted to the user's preference.

The invention also relates to a hinge, in particular a hinge, commonly known as an "invisible hinge," used in connection with a door and other swinging objects, and the invention described herein relates to a hinge mechanism with a very narrow surface. It is an improvement over conventional designs for certain applications that can be used for and in proportion to which the hinge must be able to support a much longer vertical surface. Also important of the present invention is the method used to locate and install the hinge.

In this type of hinge, the hinge part is connected by an interlocking interlocking member, which is hingedly moved by the hinge pin, slides by a sliding pin, inside a pocket or compartment within the hinge part, ie hinge plate Or located inside the hinge piece. The initial model of this hinge was produced by Joseph Soss, and it is a hinge design named after him. In this regard, it is described in particular in US Pat. Nos. 1,030,936, 1,484,093, 1,688,996, 1,984,092 and 2,178,271. This type of hinge is used in the design patent.

These hinges are designed to be invisible when in the closed position, and when in the closed position the center of the hinge is positioned below the surface and then extends below the surface to allow 180 ° full opening. Two basic models of hinges are common, the first model having a long and narrow body with two attachment screws, which attachment screws are located at each end. The shape is of a shape necessary for cutting a multi-layer mortise for installation, and the second model has a cylindrical surface having a face, in which a screw as an attachment means is installed and requires a hole drilled for installation. It is a barrel hinge.

These conventional designs have similar characteristics, but do not have the necessary gaps, and therefore have inadequate or impractical attachment methods for guitars with foldable necks, and also require complex procedures to form openings for hinge pieces or cylinders.

In addition, although the application of models of conventional designs has been demonstrated to some extent by US Design Registration No. 516,114, defects have been found in many areas for effective production beyond small hand-builders.

First, a hinge known as a "barrel hinge" requires that the final outer surface corresponding to the fretboard of the instrument, for example, be attached without going through a normal production procedure, and a hole in which a hole drilled very close to the surface of the fretboard is very important. It is required to make the fretboard vulnerable, having a member.

Secondly, these hinges are very difficult to set correctly for depth and alignment. Other models of Soss hinges include better fastening means and better position and depth control means. However, the design allows only one hinge to engage in the part where the structural integrity is insufficient in this application and where the ability to align the two hinge parts is not sufficient. In addition, the position of the fixing screw is very close to the outer edge of the member, and in this case, a problem arises due to the lack of material for properly securing the screws. Finally, the means for cutting mortis are very long and difficult to cut consistently.

According to the invention, the string instrument includes a neck extending main member, the neck extending main member having a neck extending fixed end, a rotating assembly support head end, an extending top, and a length extending between the ends. The neck extending main member forms a neck extending cut portion adapted to receive the hinge piece. The neck extension cut is extended to open at the neck extension fixed end and the top of the neck extension main member. The neck base main member includes a neck base fixed end, a base top, and an opposite end thereof. The neck base main member may form a neck base cutout adapted to receive the hinge piece. The neck base cutout extends to open at the neck base fixed end and the top of the neck base main member. The hinge includes a hinge first hinge piece located within the neck extension cutout and a second hinge piece located within the neck base cutout. The neck fretboard portion is secured on the open top of the neck extending cutout and bears against the first hinge piece. The base cover is fixed on the open top of the neck base cut and bears against the second hinge piece. The string main body is fixed to the neck base main member.

Two or more Soss link assemblies are connected to a pair of hinge pieces, each of which has a pair of Soss hinge links for receiving a lace, to form a pair of spaced Soss hinge assemblies formed on the pair of hinge pieces.

Each hinge piece defines a set screw receiving bore oriented to extend the length of the stringed neck.

The neck extension main member has a mounting base for screws, and the neck base main member forms a hole for accommodating the screw. Through this, the neck base main member and the neck extension main member can be fixed to the use position.

The hinge of the present invention includes a first hinge piece, the first hinge piece forming a pair of first and second races for receiving a first Soss sliding hinge pin. The second hinge piece forms a pair of third and fourth races for receiving the second Soss sliding hinge pin. A first Soss link assembly is installed within and between the first and third races. A second Soss link assembly is installed within and between the second and fourth races, the second Soss link assembly is positioned adjacent and spaced apart from the first Soss link assembly, as well as in the same direction as the first Soss link assembly. Extends.

According to a preferred embodiment, the first hinge piece forms a hole between the first lace and the second lace. The second hinge piece forms a hole between the third lace and the fourth lace. The hole is adapted to receive the attachment member for fixing and attaching the hinge to the member to be hingedly installed.

The hinge piece may be a rectangle consisting of a flat side and a rounded corner or flat side, for example representing a 90 ° corner.

The holes between the first race and the second race may be aligned in substantially the same direction as these races.

According to the invention, the alignment provided by the improved hinge can be further improved by the self-aligning fastening mechanism according to the invention. Such a mechanism may be a fastener in the form of a screw or bayonet.

According to the present invention, a self-aligning foldable guitar includes a neck portion and a torso portion. A hinge is provided on the neck portion and the body portion. A first alignment member is fixed to the neck portion. A second alignment member is fixed to the body portion, and the second alignment member substantially meets the first alignment member in a fixed position. A fixing member fixes the first alignment member to the second alignment member.

The first alignment member may comprise a conical surface.

The first and second alignment members may have surfaces that coincide with each other.

The fixing member is a threaded member.

The fixing member may be a bolt or a bayot.

Preferably, the first alignment member may form a rectangular bore for receiving the fixing member.

The first alignment member includes a pipe-like member having internal threads and a frustroconical stud screwed into the pipe-like member.

The second alignment member may comprise a solid body having a receptacle in series with the truncated stud, and further forms a threaded bore for receiving the fixing member.

According to the present invention, there is provided a case capable of receiving a foldable guitar in a folded position or in an unfolded use position.

The other case of the present invention includes the other body accommodating case portion, the other body cover and the neck case upper portion. The lower part of the neck case and the side wall of the neck case are also formed. An upper neck zipper part fixes the upper part of the neck part case to the side wall of the neck part case. The lower neck zipper part fixes the lower part of the neck part case to the side wall of the neck part case. A zipper secures the guitar body cover to the guitar body housing case.

The present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings.

1 is a schematic side view showing a male member of the self-adjusting mechanism of the present invention.

FIG. 2 is a plan view showing the bolt receiving opening of the member of FIG. 1. FIG.

3 shows a set screw used according to the invention.

4 shows the arm member of the self-adjusting mechanism of the present invention.

Fig. 5 shows male and female members which are installed in other or other stringed instruments of an open shape.

6 is a side view similar to FIG. 5 showing an adjustment operation.

FIG. 7 is a side view similar to FIG. 6 showing a guitar neck in the use position. FIG.

FIG. 8 is a side view similar to FIG. 7 showing a guitar neck secured to a use position; FIG.

9 shows a modification of the fixing member.

10 shows a modification of the arm member according to the invention for accommodating a modification of the fixing member of FIG.

FIG. 11 is a view taken along the line 11-11 of FIG. 10.

12 shows a modification of the arm member of the present invention in the fixed position.

Fig. 13 shows the fixing mechanism of the present invention installed in the guitar.

14 is a perspective view of an improved hinge useful in the fastening mechanism of the present invention.

15 is a perspective view of the hinge of FIG. 9 in the closed position seen from the bottom.

Figure 16 is a perspective view of the hinge of Figure 9 seen from above.

FIG. 17 is a view similar to FIG. 9 showing a variant of another hinge structure. FIG.

FIG. 18 is a view similar to FIG. 10 showing the hinge shown in FIG.

19 shows the hinge of FIGS. 12 and 13 used.

20 is a perspective view of the hinge installed and in the open position.

21 is an exploded perspective view of a modification of the movable string instrument configuration of the present invention.

Figure 22 shows an instrument of the present invention with a folded neck.

FIG. 23 shows a variant with a protruding heel block.

24 is a plan view from above of another case constructed in accordance with the present invention.

25 is a view taken along the line 25-25 of FIG. 24.

FIG. 26 is a view similar to FIG. 25, illustrating a first opening step of the other case of the present invention.

Figure 27 shows another opening step of the other case according to the present invention.

Figure 28 shows another opening step of the other case of the present invention.

29 shows the next opening step of the other case of the present invention.

30 shows a further opening step of the other case of the present invention.

Figure 31 shows the open position of the other case of the present invention with the upper neck guard extended for illustrative purposes.

32 is a side view of a modification of the other case according to the present invention.

33 is a plan view of another case of the present invention shown in FIG. 32 as viewed from above.

34 is a side plan view showing the opening of the other case according to the present invention.

35 shows the next opening step of the other case of the present invention.

Figure 36 shows the opening of the upper part of the body retaking portion of the other case of the present invention.

Fig. 37 shows an open shape of the other case of the present invention.

38 shows a foldable guitar in which the guitar case of the present invention can be used.

Referring to FIG. 1, the neck 12 of the foldable guitar 10 has a male alignment 15. The adjusting male member 15 includes a docking member 17 which is screwed into the threaded bore 19. The docking member 17 comprises a head 21 and a threaded integral threaded tubular member 23.

The adjusting male member 15 also includes a rectangular tube 25 that includes an upper flange 27. The upper flange 27 forms a rectangular hole 29. As will be described in detail below, the rectangular hole 29 receives a bolt 31 (FIG. 2) that includes a retainer washer 33 frictionally coupled.

As shown in FIG. 4, a pair of arm members 35 are provided in the other body 14, which extend beyond the bout 26 to the support block 50 of the bait 26. Passing. The bolt 37 passes through the support block 50 and is engaged with the arm member 35. The arm member 35 includes a receiving cone 39, which receives the head 21 to securely hold the neck 12 with respect to the other torso 14. Combine with

As shown in FIG. 5, the neck 12 is mounted to the body 14 of the guitar by a hinge 48. In use, the neck 12 is rotated towards the body 14 from the position shown in FIG. 5 to the position shown in FIG. 6. Due to the wear or normal tolerances of the hinge 48, there is some inconsistency, as shown in FIG. 6. This discrepancy is resolved by the engagement between the surface 41 and the surface 43 while the neck 12 progresses from the position shown in FIG. 5 to the position shown in FIG. 6 and the position shown in FIG. 7.

Since the rectangular hole 29 properly aligns the bolt 31 and the bore 49, the mismatch does not affect how the bolt 31 can be screwed into the bore 49.

Once the guitar is arranged as shown in FIG. 7, the bolt 31 can be tightened to take the position shown in FIG. 8.

Referring to FIG. 9, a bayonet 131 including retainer washer 133 and arm 134 may be used in place of bolt 31. As shown in FIGS. 10 and 11, the ramp 136 is engaged by the arm 138 of the bayonet 131. The lamp 136 has a shallow side 140 and a high side 142. In use, the arm 138 is engaged with the shallow side 140 after passing through the notch 144 and rotated to the high side 142 to be secured in place, as shown in FIG. 12. .

Referring to Fig. 13, an instrument constructed in accordance with the present invention in which the self adjusting structure of the present invention is used is shown. Although the present invention can be used in connection with an acoustic or electric guitar, violin, viola, bass, banjo or other stringed instrument, an acoustic guitar 10 is described for illustrative purposes.

In general, guitar 10 includes a large hollow body 12 secured to neck 14 of the present invention. In a conventional manner, the neck 14 comprises a head 16, which head comprises a tuning screw 18.

The body 12 includes a top plate 20 in which a ringing hole 22 is formed. The bottom plate 24 is secured to the top plate 20 by bouts 26 and 28, both of which have sidewalls of guitars having a U-shaped top and bottom at the distal end of the body 12. And a central curved bait 30 and a central curved bait 32 (not shown) form the waist of the instrument.

Neck 14 supports neck fretboard 34, which is attached to neck 14. Neck fretboard 34 supports a number of frets 36. The neck base 38 supports the neck base fretboard 40, and the neck base fretboard is attached to the neck base 38. The neck base fret board 40 supports a plurality of frets 42, and the strings 44 are operated by leaning against the frets. For clarity, the string 44 supported by the bridge 46 is partially shown in phantom. The other neck 14 can be folded by rotating in the direction of the arrow 47.

Preferred embodiments of the hinge 448 for use with the self adjusting mechanism of the present invention are shown in FIGS. Hinge 448 includes Soss link assembly 449, which includes hinge link 468, hinge pin 470, hinge pin 472, and pin 478. The operation of this hinge is similar to other Soss hinges. However, an advantage is provided by the placement of the screw holes 476, which is a point where the timber holes are sufficient for all sides of the screw since the screw holes are located near the side portions 477 of the hinge 448. In that it supports, for example, screws entering the neck, providing good support. At the same time, the thickness 481 of the side walls 479 is relatively small, which can increase the thickness for the Soss link assembly 449. The inclined track 474 functions to provide the necessary configuration so that the hinge can be used in a guitar with a hinge neck.

In addition, the thin receiving recess 481 that can accommodate the relatively large head of the rigid pin 470 results in miniaturization and durability.

According to a particularly preferred embodiment of the present invention, it has been found that a variant of the short hinge is relatively preferred, as shown in FIGS. 17 and 18. Otherwise, hinge 548 is similar in construction to hinge 448. Some of the advantages of this configuration can be seen from FIG. 19, where, as the hinge piece is lowered, the short lever arm acts through the screw 583 to complete the hole 585 in which the screw 583 is mounted. Reduce and thus promote long term stability of the guitar body 512 and guitar neck 514.

According to a preferred embodiment, the hinge 548 includes sidewalls 579 having a thickness of approximately 0.25 cm. In addition, the thickness 587 of the link 568 is 0.25 cm. Sidewall 579 has a height 589 and a length 591 of 2 cm. Sidewall 579 has a length 593 of 2 cm. Also in accordance with a preferred embodiment, the hinge 548 has a width 595 of 4 cm.

24 to 31, the other case 810 of the present invention includes a main body upper cover 812. The main torso lower portion 814 may be coupled to the upper cupper 812 by a zipper 816. A handle 18 is secured to the lower portion 814.

Also, the neck top cover 820 is fixed by the zipper 816. Neck lower cover 822 is secured by zipper 824. The other case 810 also includes a neck side portion 826.

If you wish to open the case of the present invention, the neck top cover 820 is opened by holding the zipper pull 828 and proceeding to point 830. Zipper pull 832 continues to point 834. As a result, the other case of the present invention is placed in a position where the top cover 812 is opened as shown in FIG.

If desired, the zipper pull 832 may be moved to the point 834 at the location shown by the virtual line in FIG. 26. Likewise, zipper pull 828 may be placed at point 830. This allows the neck top cover 820 to be lifted up, as shown in FIG. Then, the top cover 820 can be folded in the direction of the arrow 836, so that the top cover 820 is disposed on the top surface of the guitar case, as shown in Figure 28, Velcro-type hook connector 840 Is engaged in contact with the Velcro type loop connector 842.

According to a preferred embodiment, zipper pulls 828 and 832 can be moved in both directions. Likewise, the hook connector 844 contacts the loop connector 846 after the zipper 824 is opened so that the neck side portion 826 is laid flat as shown in FIG. 29. Can be. After the neck side portion 826 has been placed in the flat position shown in FIG. 29, once the hook material 848 and the loop material 850 are engaged, the neck bottom cover 822 is shown in FIG. 29. Can indicate a location. In addition, the hook material 852 may be formed to engage the loop material 854.

By providing a separate zipper on the neck top cover 820, the other case 810 of the present invention can be made in the configuration shown in FIG.

Subsequently, another modification of the other case of the present invention is shown in Figs. In this embodiment, the guitar case 910 is provided with a central zipper or a combination of zippers 924 and zippers 926, and these zippers allow to accommodate a large number of components in the guitar case of the present invention. For example, the guitar case is fully sealed and can accommodate a conventional guitar or a foldable guitar in the use position, as shown in FIGS. 32 and 33.

In addition, the guitar case can be opened, as shown in FIG. 36, when the guitar 956 is housed in the case, and has a configuration suitable for the guitar folded and folded as shown in FIGS. 34 and 35. Zipper pulls 958, 960, and 962 can be opened such that case 110 is in a state shown in FIG. 37, i.

As shown in FIG. 38, the foldable guitar 1010 may have a neck 1014 that is folded upwards in the direction of the arrow 1018, as indicated by the phantom line. This movement may continue until the neck comes to the position of reference numeral 1014a shown in FIG. 38 and the wedge neck 1014a and the other torso 1012 overlap.

According to the present invention, the guitar shown in solid line in FIG. 38 may be stored in the guitar case 810 in the state shown in FIG. Likewise, when in the use position, the guitar will also be housed within the guitar case 910 of the present invention shown in FIGS. 32 and 33.

When the neck of the guitar is completely folded to the position indicated by reference numeral 1014a, the folded guitar is stored in the guitar case 810 in the state shown in FIG. Likewise, this folded guitar is shown in FIGS. 32-37, which opens the neck zipper and folds the neck upper and lower guards and the neck sidewalls to a position similar to that shown in FIG. 29, secured through hook and loop fasteners. It can be stored in the case.

According to the invention, for further functionality, the zipper in all embodiments may be a zipper moving in two directions.

20 shows the installation hinge in the folded position, how the butt plates 61, 63 of the hinge 48 are concealed in the pockets 50, 52, and fixing screws 56 in the final assembly structure according to the invention. 58 shows how the neck is positioned, and the pockets 50, 52, neck 14 and block 50 in the other body 12, before attaching the fretboards 34, 40 to the proper positions. Separated by. Neck 14, neck base 38, neck fretboard 34 and main trunk fretboard 40 are shown in the storage or moving position of the instrument neck. The hinge of the present invention may be suitable even when very narrow surfaces are available for the hinge mechanism, and therefore should be able to support even larger vertical surfaces.

Referring to FIG. 13, when the neck 14 is in the open or in use position with respect to the other torso 12, it moves from the fully folded position of FIG. 5 to the state shown in FIG. 13 beyond the state shown in FIG. 19. Then, after fastening the fixing bolt 31 can be used conveniently.

Referring to Fig. 21, a variation of the present invention will be understood. Guitar 510, including guitar body 512, includes side wall bouts in series, which form notches 584 that receive hinge 548. Thus, a portion 582 of sidewall 515 is interposed between heel block 538 and neck 514. The screw 531 fixes the neck 514 to the use position, for example, as in the embodiment of FIGS. 1 to 8.

In particular, where a firm fixation of the neck is desired, a portion 584 of the heel block 538 may extend through the side wall 515, which is cut out to form the portion 584. Thus, the heel blocks come into contact with the side walls.

Subsequently, another variation of guitar 610 of the present invention, including guitar body 612 and guitar neck 614, is shown in FIG. 22 in a folded or moved position. In the present embodiment, the neck 614 is folded at the breakpoint 690, which coincides with the breakpoint at which the two hinge bolts 661, 663 engage each other, as shown in FIG. 22, Respectively located from the side walls 615. Accordingly, the neck 614 is additionally supported by the side wall 692.

Referring to FIG. 23, as mentioned above, the protruding heel block 738 of the guitar 710 is embodied.

According to the present invention, as the guitar neck is folded, the guitar string will be inserted through the hole and into the body of the guitar. In addition, the structure of the present invention may be used as a solid body guitar such as an electric guitar. In this case, the acoustic guitar is not formed with a hole leading into the body of the acoustic guitar. As such, there is a spatial limitation on strings. In accordance with the present invention, grooves or troths, ie cylindrical or spherical holes, are drilled in the solid guitar, providing space for displacement of the strings. In addition, a hole, for example 5 cm in diameter, may be formed in the guitar. The guitar string may pass through the hole and be raised flatly opposite the rear portion of the guitar.

Although exemplary embodiments of the invention have been described, it will be understood that various modifications will of course be apparent to those skilled in the art. Such modifications are within the spirit and scope of the invention, and the invention is only described and defined by the appended claims.

Claims (33)

(a) a neck portion; (b) the trunk; (c) a hinge installed at the neck portion and the body portion; (d) a first alignment member fixed to the neck portion; (e) a second alignment member fixed to the body portion; (f) a fixing member for fixing the first alignment member to the second alignment member Including, The second alignment member substantially meets the first alignment member in a fixed position, Self Aligning Folding Guitar. The method of claim 1, And the first alignment member comprises a conical surface. The method of claim 1, And the first and second alignment members have mating surfaces. The method of claim 1, And the securing member is a threaded member. The method of claim 1, And the securing member is a bolt. The method of claim 1, And the securing member is a bayonet. The method of claim 1, And the first alignment member forms a rectangular bore for receiving the fixing member. The method of claim 1, And the first alignment member comprises a pipe-like member with internal threads and a frustroconical stud screwed into the pipe-like member. The method of claim 1, And the second alignment member comprises a solid body having a receptacle in pair with the truncated stud and further defines a threaded bore for receiving the securing member. The method of claim 1, The hinge is (Iv) (A) a first track comprising first and second races for receiving a first Soss sliding hinge pin, and (B) a third and a third for accommodating a second Soss sliding hinge pin. A first hinge butt forming a second track comprising four races; (Ii) a third track comprising (C) fifth and sixth races for receiving a third Soss sliding hinge pin, and (D) a seventh and eighth races for receiving a fourth Soss sliding hinge pin. A second hinge piece forming a fourth track including; (Iii) a first Soss link assembly installed in the first track; (Iii) a second Soss link assembly installed within the second track; (Iii) a third Soss link assembly installed within the third track; (Iii) a fourth Soss link assembly installed within the fourth track. Including, self-aligning folding guitar. (a) a first track comprising (1) first and second races for receiving a first Soss sliding hinge pin, and (ii) a third and fourth races for receiving a second Soss sliding hinge pin. A first hinge piece forming a second track comprising; (b) a third track comprising (5) fifth and sixth races for receiving a third Soss sliding hinge pin, and (ii) a seventh and seventh races for receiving a fourth Soss sliding hinge pin. A second hinge piece forming a fourth track including; (c) a first Soss link assembly installed within the first track; (d) a second Soss link assembly installed within the second track; (e) a third Soss link assembly installed within the third track; And (f) a fourth Soss link assembly installed within the fourth track Including, Hinge. The method according to claim 10 or 11, wherein (g) a first hole is formed in the first hinge piece, and the first hole is located between the first track and the second track, (h) A hinge, wherein a second hole is formed in the second hinge piece, and the second hole is located between the first track and the second track. The method of claim 12, And said hinge piece is rectangular in shape and a breakpoint between said neck portion and said body portion is offset into said body portion. The method of claim 13, And the hinge piece has a flat side and a rounded corner. The method of claim 13, The hinge piece has a flat side portion representing a substantially 90 ° corner portion. The method of claim 13, The aperture between the first race and the second race is generally aligned in the same direction as the race. The method of claim 12, The aperture between the first race and the second race is generally aligned in the same direction as the race. The method of claim 12, The hinge is installed near the base of the guitar neck, and when the hinge is in the closed position, the track is located at a first distance away from the fretboard, i.e. near the center of the hinge, at a second distance. Extended to a point, i.e., near the end of the hinge, wherein the second distance is further away from the fretboard of the string instrument than the first distance. The method of claim 12, And the Soss link assembly comprises arms rotating at pivot points adjacent one side of each of the hinge pieces, wherein the first and second holes are located on opposite sides of the hinge piece. The method of claim 12, The hinge, when in the closed position, is positioned on a string instrument having one side of the hinge, supported against the fretboard of the instrument, wherein the first hole and the second hole are opposite surfaces of the hinge piece. Located in the hinge. The method of claim 12, The thickness of the outer surface of the hinge piece on which the first, third, fifth and seventh races are formed is 5% of the hinge width obtained between the outer surface of the side wall of the hinge that accommodates the first and third races. Hinge, from 10% to 10%. The method of claim 12, The thickness of the outer surface of the hinge piece on which the first, third, fifth and seventh races are formed is 7 of the width of the hinge formed between the outer surface of the side walls of the hinge that accommodates the first and third races. Hinge, which is from% to 9%. The method of claim 12, And the thickness of the Soss link assembly in the axial direction of the hinge pin is between 30% and 70% of the width of the hinge formed between the outer surface of the sidewall of the hinge that receives the first and third races. The method of claim 12, The length of the outer surface of the hinge piece on which the first, third, fifth and seventh races are formed is 0.8 to 1.2 times the width of the outer surface. The method of claim 12, The hinge is installed near the base of the guitar neck, and when the hinge is in the closed position, the track is located at a first distance away from the fretboard, i.e. near the center of the hinge, at a second distance. Point, that is, to a point near the end of the hinge, wherein the second distance is further away from the fretboard of the string instrument than the first distance, and the Soss link assembly is on each side of the hinge piece of the hinge. And an arm that rotates at an adjacent pivot point, wherein the first hole and the second hole are located on opposite surfaces of the hinge piece. The method of claim 25, The hinge, when in the closed position, is positioned on a string instrument having one side of the hinge, supported against the fretboard of the instrument, wherein the first hole and the second hole are opposite surfaces of the hinge piece. Located in the hinge. The method of claim 26, The thickness of the outer surface of the hinge piece on which the first, third, fifth and seventh races are formed is 5% of the hinge width obtained between the outer surface of the side wall of the hinge that accommodates the first and third races. Hinge, from 10% to 10%. The method of claim 26, And the thickness of the Soss link assembly in the axial direction of the hinge pin is between 30% and 70% of the width of the hinge formed between the outer surface of the sidewall of the hinge that receives the first and third races. (a) other body receiving case portion; (b) other body cover; (c) a neck case upper portion; (d) a lower neck case; (e) neck portion sidewalls; (f) an upper neck zipper for fixing the upper part of the neck case to the side wall of the neck case; (g) a lower neck zipper for fixing the lower part of the neck case to the side wall of the neck case; And (h) a zipper for fixing the other body cover to the other body accommodating case part Including, Guitar case. The method of claim 29, (i) a first connector member fixed to the neck case case to fix the neck case case to a desired position; (j) a second connector member fixed to the lower portion of the neck portion case to fix the lower portion of the neck portion case to a desired position; And (k) a third connector member fixed to the neck case side wall to fix the neck case side wall at a desired position; Including, further case. The method of claim 30, The other case further including a carrying strap. The method of claim 30, And the other body has a set of connectors to accommodate the configuration of the second and third connectors. In the method of manufacturing a foldable guitar, Cutting the neck pocket and the trunk pocket into the neck and the trunk, respectively, sealing one side of the neck pocket with the neck fretboard, and the trunk pocket with the trunk fretboard. Sealing one side Including, Method of making a folding guitar.

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