KR100858899B1 - Restringing device for stringed musical instruments - Google Patents

Abstract

A multifunctional apparatus for replacing a string of a string instrument is provided to reduce fatigue to the wrists and fingers of a user and the string replacement time by allowing the user to easily and quickly replace a string of the string instrument using a plurality of gears. A multifunctional apparatus for replacing a string of a string instrument comprises a cylindrical housing(1) having first and second ends. An electric motor is provided in the housing. A rotating shaft(12) is provided at the first end of the housing to transmit torque from the electric motor to the outside of the housing. A switch(5) is provided at the housing to operate the electric motor. A tuning socket(11) includes a connection unit for coupling with the rotating shaft and a tuning knob container for containing a tuning knob of a string instrument. A cutter is provided at the housing to cut a string of the string instrument. The cutter is coupled with the second of the housing.

Description

Multifunctional device for string replacement of string instruments {Restringing device for stringed musical instruments}

1 is a perspective view of the present invention.

2 (a) is a plan view of the present invention.

2 (b) is a front view of the present invention.

2 (C) is a side view of the present invention.

3 is a perspective view of the present invention depicting string winding and unwinding functions and operations.

4 is a perspective view of the present invention depicting a cutting function.

5 is a plan view depicting each step of the cutting function.

6 is a plan view showing the internal components and structure of the cutting function.

7 is a perspective view of the present invention depicting the function of removing other bridge pins.

8 is an elevation view depicting the ability to remove other bridge pins.

9 is a cross-sectional view detailing the function of removing other bridge pins.

10 is a front view depicting removing other bridge pins.

11 is an elevational view showing an example of coupling the tuning knob of the instrument and the tuning socket connected to the rotating shaft.

12 is an elevation view illustrating a state in which the tuning socket and the rotating shaft are aligned and engaged.

13 is a cross-sectional view showing the internal structure of the tuning socket.

14 is a perspective view of a tuning socket.

15 is a plan view (A), a side view (B), a front view (C), a longitudinal cross-sectional view (D), and a rear view (E) of the tuning socket.

16 is an elevation view depicting tuning sockets corresponding to tuning knobs of various sizes and shapes.

17 is a plan view (a), a side view (b), a front view (c), a longitudinal cross-sectional view (d), and a rear view (e) of a tuning socket for a bass guitar.

18 is an elevational view depicting tuning sockets corresponding to tuning knobs of various shapes of bass guitar.

<Description of the symbols for the main parts of the drawings>

1: housing 4: directional selector switch

5: operation switch 11: tuning socket

12: rotating shaft 13: magnet

14: Connection 16: Tuning socket for bass guitar

17: Guide groove for spherical base tuning knob

18: elastic member 20: fixed cutter blade

21: removable cutter blade 22: release button

23: cutter handle 31: bridge pin puller

41: guitar head 42: tuning knob

43: strings 44: gearbox

45: neck 46: other body

47: bridge 48: bridge pin

52: Old base tuning knob 52: New base tuning knob

68: tuning knob receptacle 76: groove for spherical base tuning knob

78. Power supply insertion hole

The present invention is a multifunctional device for fast and convenient string replacement of string instruments.

Most stringed instruments need to be replaced on a regular basis to maintain the best sound, as well as when the string is broken or worn out. However, this current replacement is a work that requires considerable time and effort. Most musical instrument tuning devices are equipped with a number of tuning pegs, and the tuning knob has a plurality of gears. These gears allow the user to turn the tuning knob with a relatively low force against strong string tension, thereby preventing the string from loosening and allowing fine tuning. With the help of these gears, the user can turn the tuning knob with a relatively small force, but the high deceleration rate of 1/15 or higher requires that the tuning knob be rotated several times, which requires considerable time and effort. This can put a heavy strain on the fingers and sometimes cause serious damage to the player, such as carpal tunnel syndrome. This may be a common problem for all string players.

Also, replacing strings generally requires at least two tools.

In addition to winding and unwinding the strings, a cutting tool is needed to cut off the excess strings. Since most replacement strings are shipped longer than the actual length needed to accommodate a variety of instrument lengths, users typically need a cutting tool, such as a nipper, to cut the strings to the length of the instrument. However, in the case of such a general cutting tool, when cutting a string of a solid guitar or a base, there is a problem in that the blade is worn out soon, and the inconvenience of having to carry the tool additionally occurs.

Acoustic guitars use wedge-shaped pins to fasten the strings to the bridge. This pin must be pulled out when replacing the strings, which are very tight and are not easily removed by hand, usually using tools such as pliers or pliers. This is a risk of damaging the bridge pins and guitars made of high-quality materials such as wood, ivory, and there is a problem that it is quite inconvenient and inefficient to carry these tools at all times for work that must be replaced at any time. Several existing designs can be found to solve this problem.

The most widely used among them is a manual bobbin, currently US Pat. Nos. 5505116, 6255575, 5272953 Etc. are introduced. These devices are designed to be easily rotated by installing a rotary knob applied to the tuning key of the instrument. This is much improved compared to the conventional pure hand turning work but still requires much effort and effort of the user. In addition, since the center of the rotating shaft is not fixed during the winding and unwinding of the string, there is a problem that the handle is moved to reduce the work efficiency.

US Patent Nos. 4791849, 6294719, and the like using motors have been published to supplement such manual work. Since the main purpose of the bobbins using these motors is to focus on the fast winding and loosening of the strings, there is a problem that additional cutting tools and tools for removing bridge pins are required to carry the strings.

Among the already introduced products, manual filed U.S. Patents 5,550,116 and 6,555,75 The back is a multifunctional device to solve the hassle of carrying various tools for current replacement work. This invention includes the ability to cut strings, but in actual use it has the disadvantage of having to use quite a lot of force in the case of thick and hard bass guitar strings or bass strings of guitars, and must use two hands in structure and still operate manually. Because of this, there is a problem that the work efficiency is low.

United States patent designed to be applied to various types of tuning knobs according to the type of musical instruments, such as acoustic guitar, electric guitar, bass guitar, banjo, mandolin In the case of heading 6294719, it can be applied to tuning knobs of various sizes and shapes, but the size and diameter of the sockets are relatively large, so that they can be rotated by interfering with the tuning knobs of 12 string guitars, mandolin, banjo, etc. There is a problem that the movement is not smooth.

The present invention is to solve the problems presented above and the shortcomings of existing products, the present invention eliminates the need for the user to carry a number of tools required for the rope replacement operation, and using the electric winding and unwinding, Its purpose is to efficiently perform various tasks such as cutting off extra lines and pulling out bridge pins in one device, and to work faster and more efficiently with a minimum of copper wire.

A multifunctional device for string replacement work according to the present invention for achieving the above object is a cylindrical housing having a first end and a second end, an electric motor provided inside the housing, the first end of the housing A rotary shaft provided in the housing to transmit the rotational force transmitted from the electric motor to the outside of the housing, a switch provided in the housing to operate an operation of the electric motor from the outside of the housing, and a connection part for coupling with the rotary shaft; A tuning socket including an tuning knob receiver for accommodating a tuning knob of a stringed instrument, and a cutter for cutting a string of a stringed instrument, the cutter coupled to an outer side of the housing.

In addition, the cutter is preferably coupled to the second end of the housing.

In addition, it is preferable that the bridge pin puller for extracting the bridge pin of the stringed instrument further includes a bridge pin puller coupled to the outer side of the housing.

In addition, the bridge pin puller has a bridge pin slot having a width that can be inserted under the head of the bridge pin, but the head of the bridge pin can not be inserted so as to hold the bridge pin to pull out the bridge pin. It is desirable to.

In addition, the tuning knob receiving portion of the tuning socket is preferably a groove open toward the opposite side of the portion coupled to the rotating shaft.

In addition, the connection portion of the tuning socket preferably comprises a magnet coupled to the rotary shaft receiving groove and the rotary shaft receiving groove for the insertion of the rotary shaft.

In addition, the cutter includes a cutter handle, a movable cutter blade, and a fixed cutter blade, wherein the movable cutter blade is configured to pivot with respect to the fixed cutter blade by the cutter handle.

In addition, the cutter further includes a cutter release button and a spring, wherein the spring is pushed the movable cutter blade out of the housing when the cutter release button is pressed so that the movable cutter blade is opened against the fixed cutter blade It is preferable.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 (a) to 2 (b) shows a multifunctional device for the current replacement operation according to the present invention.

The present invention has a plurality of gears, a battery and a motor built in the elongated cylindrical housing (1) and the tuning socket (11) for embedding and fixing the tuning knob (42) of the stringed instrument connected to the gear and the motor therein It is. The tuning socket 11 obtains the rotational force from the internal gear and the motor to quickly and quickly rotate the tuning knob 42 so as to obtain the most suitable speed and rotational force for the winding and unwinding operation. A switch 4 for adjusting the rotation direction and a switch 5 for adjusting the speed are included.

As shown in FIGS. 12 and 13, a magnet is provided in the accommodation groove 14 of the tuning socket 11 for accommodating the tuning socket 11 and the tuning socket 11 that can be detached from the rotating shaft 12 connected to the gear. Built-in (13) is configured to be fixed by a magnetic force when abutting the rotating shaft 12 made of metal.

14 and 15 show the tuning socket 11 in detail.

The tuning socket 11 includes an tuning knob receiver 68 and a connection portion 14 protruding from the tuning knob receiver 68. The connecting portion 14 has a rotating shaft insertion groove 66 for receiving the distal end of the rotating shaft 12. The magnet 13 is engaged with the tuning socket 11 and the rotating shaft 12 to be fixed.

The tuning knob receptacle 68 has a receiving groove 69 open in a direction opposite to the direction in which the connecting portion 14 protrudes. The tuning knob receptacle 68 has a first wall 71, a second wall 72, and two side walls 73 and the first wall (continuing the first wall 71 and the second wall 72). 71, the second wall 72 and the side walls 73 comprise an extended bottom wall 74. Tuning knob guide slots 15 are formed in each sidewall 73 and are useful for holding large tuning knobs 42. As shown in FIGS. 3 and 11, when the tuning knob 42 is inserted into the tuning knob accommodating part 68 to rotate the rotary shaft 12 in a state in which the tuning knob 42 is accommodated, the tuning knob 42 is rotated. Is rotated.

FIG. 17 shows a tuning socket 16 for a base suitably adapted to a tuning knob 51 for a bass guitar and a spherical base guitar.

The base socket 16 is provided with a circular groove 76 having a predetermined width. The circular groove 76 is for catching the thin ends of the tuning knobs 51 and 52 as shown in Fig. 18A. Between these sidewalls 16 of the tuning socket 16 a vintage tuning knob guide groove 17 is formed that is a narrow slot.

Tuning socket 11 in the present invention includes not only the embodiments described above, but also specifically configured to fit the tuning knobs of various sizes and types provided in the various instruments to be tuned.

In addition, as shown in Fig. 2 (b), Fig. 4, 5 and 6 at the opposite end of the end with the rotary shaft 12 of the housing 1 and the handle portion of the housing 1 as shown in Fig. A cutter composed of a fixed cutter blade 20, a movable cutter blade 21, and a cutter handle 23 is provided to cut the extra string 43, and is usually embedded in the housing 1. When pressing the release button 22 for the use of the cutter, the elastic member 18 installed on the handle 23 pushes the handle 23 so that the handle 23 can be pushed out of the housing and used. After the handle 23 is returned to its original position, it is embedded in the housing 12 and fixed. The movable cutter blade 21 is hinged to the housing 1 so as to pivot by the cutter handle 23 with respect to the stationary cutter blade.

In addition, the tuning knob 42 and the tuning socket 11 of the instrument is designed according to various instruments and can be replaced according to the size and shape of the tuning knob 42 of the instrument.

In addition, as shown in (b) of FIG. 2, the extractor 31 is installed adjacent to the cutter at the end of the housing 1 on the side where the cutter is installed, and using the extractor 31, FIGS. 7, 8 and 9. As shown in FIG. 10 and the bridge pin 48 provided in the bridge 47 of the guitar 46, the work efficiency is further improved. The drawer 31 is formed with an open bridge pin slot for holding the bridge pin 48. As shown in FIGS. 9 and 10, the bridge pin 48 is inserted through the bridge pin slot, and then the puller 31 is lifted up so that the head of the bridge pin 48 accommodated in the inner space of the puller 31 is removed. The bridge pin 48 is pulled out by being caught in the periphery of the bridge pin slot of the puller 31.

In addition, high brightness LEDs are installed on the side where the tuning socket 11 is located in the housing 1 so that replacement work can be performed in a dark concert hall or concert hall, and a rechargeable battery or battery for power supply of the electric motor is installed inside the housing 1 for portable operation. For convenience, an insertion hole 78 is formed on the outside of the housing to insert a jack of an external power supply such as an jack of an AC-DC adapter, so that the battery can be directly supplied, operated, and charged by an external power supply when the battery is discharged. .

As described above, the present invention has been described only with respect to specific examples, but it will be apparent to those skilled in the art that various modifications and changes can be made within the technical spirit of the present invention based on the above specific examples. It goes without saying that forms and modifications belong to the appended claims.

The present invention enables the user to quickly and conveniently replace strings with the help of an electric motor and a plurality of gears, reduce unnecessary fatigue of the user's wrists and fingers, and significantly reduce the string replacement time.

In addition, by effectively integrating and arranging tools for various functions such as winding, unwinding, cutting, and pulling the bridge pins into one device, all functions can be used in one holding position without changing or changing tools. It allows users to work with a minimum number of copper wires and eliminates the need to carry a large number of tools such as manual bobbins, electric screwdrivers, and nippers.

In addition, the socket that engages the tuning knob of the instrument is configured to the most appropriate size and shape for each instrument, and can be replaced if necessary, so that it interferes with the tuning knob when used in narrow banjos, mandolins, 12-string guitars, etc. The phenomenon was minimized.

Claims (9)

A cylindrical housing having a first end and a second end; An electric motor provided in the housing; A rotating shaft provided at the first end of the housing to transmit the rotational force transmitted from the electric motor to the outside of the housing; A switch provided in the housing to enable operation of the electric motor outside the housing; A tuning socket configured to include a connection knob for coupling with the rotating shaft and a tuning knob for accommodating the tuning knob of the string instrument; And A cutter for cutting a string of a string instrument, the multifunction device for string replacement work of the string instrument comprising a cutter provided in the housing. The method of claim 1, And the cutter is coupled to the second end of the housing. The method of claim 1, A bridge pin puller for extracting a bridge pin of a string instrument, the apparatus further comprising a bridge pin puller coupled to the outside of the housing. The method of claim 3, And the cutter is coupled to the second end of the housing. The method according to claim 3 or 4, The bridge pin puller has a bridge pin slot having a width that can be inserted under the head of the bridge pin, but the head of the bridge pin cannot be inserted so as to hold the bridge pin to pull the bridge pin. Multifunctional device for string replacement. The method according to any one of claims 1 to 4, Tuning knob receiving portion of the tuning socket has a multi-function device for string replacement operation of the string instrument characterized in that it has a receiving groove opened toward the opposite side of the portion coupled to the rotating shaft. The method according to any one of claims 1 to 4, The connecting portion of the tuning socket is a multi-function device for string replacement work of the string instrument, characterized in that it comprises a rotating shaft insertion groove for inserting the rotating shaft and a magnet fixed inside the rotating shaft insertion groove. The method according to any one of claims 1 to 4, The cutter includes a cutter handle, a movable cutter blade and a fixed cutter blade, wherein the movable cutter blade is configured to pivot with respect to the fixed cutter blade by the cutter handle. Multifunction device for. The method of claim 8, The cutter further includes a release button and an elastic member, and when the release button is pressed, the elastic member pushes the movable cutter blade out of the housing so that the movable cutter blade is opened against the stationary cutter blade. Multifunctional device for string replacement of stringed instruments, characterized in that.

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