WO2004090861A1

WO2004090861A1 - Knob, and stringed instrument tuning device using the same

Info

Publication number: WO2004090861A1
Application number: PCT/JP2003/004192
Authority: WO
Inventors: Takao Goto
Original assignee: Gotoh Gut Co., Ltd.
Priority date: 2003-04-01
Filing date: 2003-04-01
Publication date: 2004-10-21
Also published as: AU2003236335A1

Abstract

A stringed instrument tuning device wherein rotatably supported on a main body (20) attached to the head of a stringed instrument are a wormwheel having a winding shaft (40) at one end and a worm gear meshing with the wormwheel and having a knob (60) at one end. The knob (60) has a knob main body (61) in the form of a plate disposed substantially in line symmetry with respect to the axis of rotation, the knob main body (61) having recesses (65) in both front and back surfaces and on both sides of the axis, the recesses being each adapted to have part of a finger tip fitted therein.

Description

Description Picking and pegs for stringed instruments using it

1. Technical Field

The present invention relates to a knob for a stringed instrument such as a guitar and a peg device using the same, and more particularly to a technique for facilitating turning of the knob to facilitate tuning and for reducing the weight of the knob.

2. Background technology

A peg used for a stringed musical instrument such as a guitar generally includes a worm gear provided coaxially with a knob, and a worm wheel provided coaxially with a winding shaft and meshing with the worm gear. In such a bobbin winding device, rotating the knob rotates the ohmic gear, and the worm wheel that engages with the gear rotates to wind or unwind the string wound around the winding shaft.

By the way, although winding machines using synthetic resin for picking are also provided, most of the market is die-casting products that can enhance the appearance and give a luxurious appearance by means of plating. It is. Since six such metal pegs are mounted on the head of a guitar, a significant portion of the weight of the head is occupied by the peg.

If the head at the tip of the guitar is heavy, the support when holding it will be unstable, and fatigue will be great when played for a long time. In addition, the head vibrates when the strings are played, but if the head is heavy, it hardly vibrates and the sound rises slowly. On the other hand, after the strings are played, the head decay early, so the sound has little lingering sound.

For this reason, a reduction in the weight of the peg has conventionally been desired. In order to reduce the weight of the winding device, the weight of the knob, which requires less strength, has been conventionally reduced. For example, the simplest approach is to reduce the pick. However, when the knob is set small, a strong force is required to turn it, making tuning difficult. In addition, a thin plate-shaped knob is also provided. May cause the user to feel pain.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and not only can a weight be reduced, but also a knob that can be turned easily and can be easily tuned, and a stringed instrument using the same. It is intended to provide a winding device. Overview of the invention

The present invention relates to a knob rotatably attached to a peg for a stringed musical instrument, comprising a knob body having a plate shape that is substantially line-symmetric with respect to the axis of the center of rotation, and the front and rear surfaces of the knob body are provided with fingertips. It is characterized in that a concave part for fitting is provided on both sides of the axis.

In the knob having the above-described configuration, since the concave portion is provided on the front and back surfaces of the knob main body, the volume is reduced by the amount of the concave portion, and the weight is reduced. This weight reduction can solve the conventional problem described above.

In other words, because the head is lighter, the support when holding it is stable and the fatigue when playing for a long time is less. Also, since the head vibrates lightly and easily, the sound rises quickly when the strings are touched. On the other hand, after the strings are played, the head decay is slow, so the sound is lingering.

Further, since the concave portions are provided on both sides of the front and rear surfaces of the knob main body, when rotating the knob in any direction, the operation can be performed by putting a finger on the concave portion. In addition, since the concave part is configured so that a part of the fingertip fits (fits snugly), the knob does not slip easily when the knob is rotated, and the operability is good without discomfort to the fingertip It is. Therefore, there is an effect that tuning is much easier than with conventional knobs.

Furthermore, since the concave portion becomes thin, it is difficult to form a nest inside when the knob is manufactured by die casting. If nests are formed by die-casting, and the gas in the nests is released in the subsequent plating process, the skin of the plating will be rough. However, the present invention can prevent such a problem from occurring.

In addition, according to the present invention, since the concave portions are provided on both sides of the front and rear surfaces of the knob main body, the knob looks like a doll's face, and a design effect can be obtained. Here, it is desirable that the concave portion has a substantially spherical shape along the surface of the fingertip, so that the fingertip fits well in the concave portion. In addition, in order to further improve the fit of the fingertip into the concave portion, the concave portion preferably has a circular shape in plan view or an oval shape extending in a direction along the axis. Furthermore, in order to ensure the fit of the fingertip into the recess, the area of the recess in plan view is 60% or more, preferably 70% or more, more preferably 80% of the area of the front and back surfaces of the knob body. It is desirable to account for the above.

Next, a peg for a stringed musical instrument according to the present invention, which uses the peg having the above configuration, includes a worm wheel having a winding shaft at one end on a main body attached to a head portion of the stringed instrument, and a worm wheel. A peg for a stringed instrument, which rotatably supports a worm gear having a knob at one end thereof, the knob having a tab-shaped main body that is substantially line-symmetric with respect to the axis of its rotation center, On the front and back surfaces of the knob main body, recesses for fitting a part of a fingertip are provided on both sides of the axis. Brief explanation of drawings

FIG. 1 is a perspective view showing a peg according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a cross-sectional view taken along the line IV_IV in FIG.

FIG. 5 is a sectional view taken along line VV of FIG.

FIG. 6 is a plan view showing the peg according to the first embodiment of the present invention.

FIG. 7 is a right side view showing the thread winding device of the first embodiment of the present invention.

FIG. 8 is a front view showing the peg according to the first embodiment of the present invention.

FIG. 9 is a rear view showing the peg according to the first embodiment of the present invention.

FIG. 10 is a bottom view showing the peg according to the first embodiment of the present invention.

FIG. 11 is a left side view showing the peg according to the first embodiment of the present invention.

FIG. 12 is a plan view showing the knob of the first embodiment of the present invention.

FIG. 13 is a side view showing the knob of the first embodiment of the present invention. FIG. 14 is a front view showing a knob according to the first embodiment of the present invention.

FIG. 15 is a rear view showing the knob of the first embodiment of the present invention.

FIG. 16 is a bottom view showing the knob of the first embodiment of the present invention.

FIG. 17 is a left side view showing the knob of the first embodiment of the present invention. FIG. 18 is a plan view showing a peg according to a second embodiment of the present invention. FIG. 19 is a right side view showing a peg according to a second embodiment of the present invention. FIG. 20 is a front view showing a peg according to a second embodiment of the present invention. FIG. 21 is a rear view showing a peg according to a second embodiment of the present invention. FIG. 22 is a bottom view showing a peg according to a second embodiment of the present invention. FIG. 23 is a left side view showing a peg according to a second embodiment of the present invention. FIG. 24 is a plan view showing a knob according to the second embodiment of the present invention.

FIG. 25 is a right side view showing a knob according to the second embodiment of the present invention. FIG. 26 is a front view showing a knob according to the second embodiment of the present invention.

FIG. 27 is a rear view showing the knob of the second embodiment of the present invention.

FIG. 28 is a bottom view showing the knob of the second embodiment of the present invention.

FIG. 29 is a left side view showing the knob of the second embodiment of the present invention. FIG. 30 is a plan view showing a peg according to a third embodiment of the present invention. FIG. 31 is a right side view showing a peg according to a third embodiment of the present invention. FIG. 32 is a front view showing a peg according to a third embodiment of the present invention. FIG. 33 is a rear view showing a peg according to a third embodiment of the present invention. FIG. 34 is a bottom view showing a peg according to a third embodiment of the present invention. FIG. 35 is a left side view showing the peg according to the third embodiment of the present invention. FIG. 36 is a plan view showing a knob according to the third embodiment of the present invention.

FIG. 37 is a right side view showing a knob according to the third embodiment of the present invention. FIG. 38 is a front view showing a knob according to the third embodiment of the present invention.

FIG. 39 is a rear view showing a knob according to the third embodiment of the present invention.

FIG. 40 is a bottom view showing a knob according to the third embodiment of the present invention.

FIG. 41 is a left side view showing a knob according to the third embodiment of the present invention. FIG. 42 is a plan view showing a peg according to a fourth embodiment of the present invention. FIG. 43 is a right side view showing a thread winding device according to a fourth embodiment of the present invention. FIG. 44 is a front view showing a peg according to a fourth embodiment of the present invention.

FIG. 45 is a rear view showing a peg according to a fourth embodiment of the present invention.

FIG. 46 is a bottom view showing a peg according to a fourth embodiment of the present invention.

FIG. 47 is a left side view showing a thread winding device according to a fourth embodiment of the present invention.

FIG. 48 is a plan view showing a knob according to the fourth embodiment of the present invention.

FIG. 49 is a right side view showing the knob of the fourth embodiment of the present invention.

FIG. 50 is a front view showing a knob according to the fourth embodiment of the present invention.

FIG. 51 is a rear view showing the knob of the fourth embodiment of the present invention.

FIG. 52 is a bottom view showing the knob of the fourth embodiment of the present invention.

FIG. 53 is a left side view showing the knob of the fourth embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

A first embodiment of the present invention will be described with reference to FIG. 1 to FIG.

FIG. 1 is a perspective view showing a peg according to an embodiment. In the figure, reference numeral 20 denotes eight housings (main body). The housing 20 includes a gear case 21 disposed on the back surface of the head H, a worm case 22 protruding laterally from the gear case 21, and a mounting hole Ha formed in the head H. And a mounting portion 23 to be fitted. The gear case 21 and the mounting portion 23 are connected to each other by a plate 24 having a uniform thickness.

A worm gear 33 is rotatably supported by the worm case 22. The end of the worm gear 33 protrudes from the worm case 22 and a knob 60 is attached thereto. A worm wheel 30 housed in a gear case 21 is screwed into the worm gear 33. The worm wheel 30 has a non-circular cross-section fitting hole 31 cut on both sides of a circle in parallel, and a large-diameter hole 3 2 having a slightly larger inner diameter than the fitting hole 31. Is formed.

A hole 24 a is formed in the plate portion 24 of the housing 20. The winding shaft 40 is penetrated through L24a. The winding shaft 40 includes a winding shaft main body 42 having a winding surface 41 and a fitting portion 43 having a diameter slightly smaller than that of the winding shaft main body 42. Outer circumference of mating part 4 3 Has a flat portion 46 formed by cutting out its side portions in parallel with each other. The distance between the flat parts 6 is set slightly smaller than the distance between the flat parts of the fitting holes 31.

The fitting portion 43 of the winding shaft 40 is loosely fitted into the fitting hole 31 and the screw 50 inserted from the large diameter hole 32 of the worm wheel 30 is screwed.ゥ Attached to the ohm wheel 30.

As shown in FIG. 2, a screw 23a is formed on the inner periphery of the mounting portion 23 of the housing 20, and a fixing nut 5 through which the winding shaft main body 42 penetrates is formed on the screw 23a. 1 is screwed through the cache 51a. Thereby, the winding device of the embodiment is attached to the head H. The winding shaft body 42 is loosely fitted to the inner peripheral surface of the fixing nut 51, and is guided by the inner peripheral surface of the fixing nut 51 so that the inclination is suppressed. ing.

Next, the details of the knob 60 will be described with reference to FIGS. The knob 60 has a knob main body 61 having a substantially rectangular plate shape in plan view. The side surfaces 62 of the knob body 61 are approximately parallel to each other, and the lower surface 63 is formed as a curved surface that is concave toward the inside. The upper edges of the side surfaces 62 are connected to each other by a substantially cylindrical top surface 64. Further, the front and back surfaces of the knob main body 61 are formed so that the thickness gradually increases from the left and right ends to the center. A concave portion 65 is formed on the front and back surfaces of the knob main body 61.

As shown in FIG. 6, the recess 65 has an elliptical shape whose vertical dimension is slightly longer than the horizontal dimension, and is arranged symmetrically on the front and back surfaces. As shown in FIG. 5, the concave portion 65 has a substantially spherical shape, and is adapted to fit a fingertip. The area of the recess 65 is set to be 60% or more of the area of the front and back surfaces.

Next, as shown in FIG. 4, the knob main body 61 has a fitting hole 66 with a non-circular cross section cut on both sides of a circle in parallel, and an inner diameter slightly smaller than the fitting hole 66. A small-diameter hole 67 having a circular cross section is formed. On the other hand, a fitting portion 35 is provided at the end of the worm gear 33 by forming a flat portion 34 whose side portion is cut out in parallel with each other. The distance between the flat portions 34 is slightly smaller than the distance between the flat portions of the fitting holes 66. And the fitting hole of knob 60 With the end of the worm gear 33 fitted to the fitting 6, the screw 36 passing through the small-diameter hole 67 is screwed into the fitting 35, so that the knob 60 becomes Worm gear 3 Attached to 3.

In the knob 60 having the above-described configuration and the peg device using the same, the fingertip can be hung on the concave portion 65 of the knob 60 to be rotated during tuning. Also, the concave

Since part of the fingertip fits part of the fingertip 65, the knob 60 is hard to slip on the finger when the knob 60 is rotated, and the operability is good without any discomfort to the fingertip. Therefore, there is an effect that tuning is greatly facilitated as compared with the conventional knob.

Further, since the concave portions 65 are provided on both sides of the front and back surfaces of the knob main body 61, the knobs look like a doll face as shown in FIG. 6 and the like, and a design effect can be obtained. Further, since the concave portion 65 is thin, it is difficult to form a nest inside the knob main body 61 when the knob main body 61 is manufactured by die-casting. In addition, in the above embodiment, there is an advantage that the volume is reduced by the amount of the concave portion and the weight is reduced.

Next, second to fourth embodiments of the present invention will be described. In these embodiments, the shape of the knob in plan view is changed. In the following description, only the shape of the knob will be described, and other components will be denoted by the same reference numerals and description thereof will be omitted. FIG. 18 to FIG. 29 are views showing a second embodiment of the present invention. The knob 70 has a knob main body 71 having a substantially rectangular plate shape in plan view. Side of knob body 7 1

The two sides 72 are inclined so as to slightly expand downward in FIG. 18, and the lower edges of both side faces 72 are connected by a lower surface 73 that forms a gentle convex curved surface. The upper edges of both side surfaces 72 are connected by a substantially cylindrical top surface 74. Further, the front and back surfaces of the knob main body 71 are formed so that the wall thickness gradually increases from the left and right ends toward the center, and the front and back surfaces of the knob main body 71 are the same as those in the first embodiment. A similar recess 75 is formed. In FIG. 26, reference numeral 76 denotes a fitting hole, and 77 denotes a small-diameter hole.

In the second embodiment having the above-described configuration, the same operation and effect as those in the first embodiment can be obtained. FIG. 30 to FIG. 41 are views showing a third embodiment of the present invention. The knob 80 has a knob main body 81 having a substantially rectangular plate shape in plan view. Side of knob body 8 1

32 are inclined with respect to each other so as to expand downward in FIG. 30, and the lower edges of both side surfaces 82 are connected by a lower surface 83 which forms a gentle convex curved surface. The upper edges of both side surfaces 72 are connected by a concave, substantially cylindrical top surface 84. Further, the front and back surfaces of the knob body 81 are formed so that the thickness gradually increases from the left and right ends to the center, and the front and back surfaces of the knob body 81 are the same as in the first embodiment. Recesses 85 are formed. In FIG. 38, reference numeral 86 denotes a fitting hole, and 87 denotes a small-diameter hole.

In the third embodiment having the above configuration, the same operation and effect as those in the first embodiment can be obtained.

FIG. 42 to FIG. 53 are views showing a fourth embodiment of the present invention. The knob 90 has a knob main body 91 having a substantially semicircular plate shape in plan view. Side of knob body 9 1

92 and the top surface 94 are substantially continuous in an arc shape, and form a substantially semicircular outline as a whole. The lower edges of both side surfaces 92 are connected by a flat lower surface 93. Further, as shown in FIG. 45, the front and back surfaces of the knob main body 91 are formed in a tapered shape in which the thickness gradually increases from the left and right ends toward the center. On the back surface, a concave portion 95 having a circular shape in a plan view is formed. In FIG. 50, reference numeral 96 denotes a fitting hole, and 97 denotes a small-diameter hole.

In the fourth embodiment having the above configuration, the same operation and effect as those in the first embodiment can be obtained.

The present invention is applicable to all stringed instruments such as acoustic guitars, electric guitars, electric guitars, bass guitars, mandolin, and ukulele.

Claims

The scope of the claims

1. A knob rotatably mounted on a string winding device for a stringed instrument, comprising a tab-shaped knob body that is almost line-symmetric with respect to the axis of rotation, and has a fingertip on the front and back surfaces of the knob body. A pincushion device knob characterized in that a concave portion that partially fits is provided on both sides of the axis.

2. The knob for a peg according to claim 1, wherein the recess has a substantially spherical shape along the surface of the fingertip.

3. The knob according to claim 1, wherein the recess has a circular shape in plan view or an oval shape extending in a direction along the axis.

4. The knob for a peg according to claim 1, wherein the area of the concave portion in plan view occupies 60% or more of the area of the front and back surfaces of the knob main body.

5. A main body attached to the head of the stringed instrument, a worm wheel having a winding shaft at one end, and a worm gear fitted with the worm wheel and having a knob at one end are rotatably supported. In the pinch device, the knob includes a tab-shaped main body that is substantially line-symmetric with respect to the axis of the center of rotation, and has a concave portion in which a part of a fingertip fits on the front and rear surfaces of the main body. A peg for a stringed instrument, which is provided on both sides of the pincushion.

6. The thread winding device for a stringed instrument according to claim 4, wherein the concave portion has a substantially spherical shape along the surface of the fingertip.

7. The winding device for a stringed instrument according to claim 4, wherein the concave portion has a circular shape in plan view or an oval shape extending in a direction along the axis.

8. The peg for a stringed instrument according to claim 4, wherein the area of the concave portion in plan view occupies 60% or more of the area of the front and back surfaces of the knob main body.