JP2013148660A - Neck and body joint device for guitar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a neck and body joint device which has a small number of components, has a simple structure and is capable of surely maintaining the joint position relation of a neck and a body.SOLUTION: In a neck base end part 20, a dovetail groove 22 is formed on a side face 16 of a neck 10. In a neck receiving part of the body, a dovetail groove complementary to the dovetail groove 22 in the neck base end part is formed. By inserting the neck base end part 20 to the neck receiving part of the body, both are fitted together through the dovetail groove 22.

Description

  The present invention relates to a guitar, and more particularly, to a guitar neck body joining apparatus having a structure for joining a guitar neck and a body.

  Conventionally, a neck body joining apparatus for joining a guitar neck and a body is known. A neck body joining apparatus called a bolt-on type joins a neck and a body by tightening a plurality of bolts. Generally, this joining operation is performed in the guitar manufacturing process. Due to the demand as a musical instrument, the neck body joining apparatus for guitars requires that the joining position between the neck bodies does not shift with respect to the string. That is, since the upward force acts on the tip of the neck with respect to the body due to the tension of the string stretched on the neck surface (fingerboard), the joining position between the neck and the body is likely to shift. In order to prevent this, a bolt-on type neck body joining apparatus generally requires tightening bolts at a plurality of positions.

  Therefore, there is a need for a guitar neck body joint structure that has a small number of parts and can reliably maintain the joint position.

No. 5-16674 JP 2011-95747 A

  Accordingly, an object of the present invention is to provide a new and improved guitar neck body joining apparatus, and in particular, a guitar neck body joining structure that is simple in structure and can maintain a joining position with respect to a string. The purpose is to provide.

  According to one aspect of the present invention, there is provided a neck body joining device for a guitar, wherein a neck base end portion having a dovetail groove formed on a side surface of the neck, and a dovetail groove complementary to the dovetail groove of the neck base end portion are formed. There is provided a neck body joining device for a guitar comprising a neck receiving portion of the body.

  According to this configuration, the dovetail groove at the neck base end portion and the dovetail groove of the neck receiving portion on the body side are joined as dovetail joints, so that the joining force is secured and the joining position is also set with respect to the string. Can be maintained. In addition, since the dovetail groove on the neck side is formed on the “neck side surface” of the neck base end portion, no heel is required at the neck base end portion, and the neck can be easily formed in a straight line as a whole. As a result, it is suitable for application to a thin guitar such as an electric guitar.

  According to another aspect of the present invention, in addition to the above configuration, a metal fastener is provided, the fastener has a single fastening bolt structure, and a degree of joining between the neck base end portion and the neck receiving portion. A guitar neck body joining apparatus capable of adjusting the tone and controlling the tone is provided.

  According to this configuration, since the fastener uses a single fastening bolt, it is easy to adjust the degree of joining between the neck base end portion and the neck receiving portion by the fastening degree of the fastening bolt. Yes, it can adjust the tone generated by the guitar. Therefore, the guitar player can adjust the tightening degree of the fastening bolt before the performance so that an appropriate tone according to the performance can be obtained. Therefore, according to this apparatus, it is possible to simultaneously adjust the degree of joining between the neck and the body and the tone generated by the tightening degree of a single bolt.

  The above and other objects and advantages of the present invention will be apparent from the following description made with reference to the drawings.

It is a figure which shows the state which removed the neck and body of the guitar in which the side dovetail type neck body joining apparatus which concerns on embodiment is integrated. The side view on either side of the neck used in the side body dovetail type neck body joining apparatus which concerns on embodiment is shown. It is a figure which shows the end surface of the neck used in embodiment. It is a figure which shows the end surface of the body used in embodiment. It is a top view of the body used in embodiment. It is a figure which shows the fastener which can be tone-controlled used in embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an overall view of a guitar in which a guitar neck body joining apparatus according to an embodiment is incorporated. FIG. 1 shows a state before the guitar neck 10 and the body 30 are joined.

  The neck body joining device for a guitar according to the embodiment is a side dovetail neck body joining device. Of the neck 10, the neck base end 20 is used for joining to the body 30. A dovetail groove 22 is formed in the side surface 16 of the neck 10 at the neck base end portion 20. Since the dovetail is formed on the neck side surface 16 based on the embodiment, this neck body joining apparatus is called a side dovetail type. On the other hand, the neck receiving part 40 of the body 30 is used for joining with the neck. In the neck receiving portion 40, a dovetail groove 42 complementary to the dovetail groove 22 of the neck base end portion 20 is formed. By configuring the neck body joining device in the form of a side dovetail in this way, the joining position relationship between the neck and the body is maintained even with respect to the stringed string, satisfying the requirements of the guitar as a stringed instrument.

  Moreover, the neck body joining apparatus of the guitar according to the embodiment preferably uses a fastener 50 having a structure that uses a single fastening bolt to simplify the degree of joining between the neck and the body, and thus the tone generated from the guitar. Can be adjusted.

  2 and 3 showing the neck 10 and the neck base end portion 20, reference numeral 12 is a neck body, 14 is a fingerboard formed on the surface of the neck, 16 is a neck side surface, and 18 is a neck back surface. It represents. 2 shows the left side 16L of the neck on the upper side and the right side 16R of the neck on the lower side, and FIG. 3 shows an end view of the neck 10 viewed from the neck base end 20 side. The dovetail groove 22 formed on the neck side surface 16 of the neck base end portion 20 is different on the left side (see the upper side in FIG. 2) and on the right side (see the lower side in FIG. 2) and is asymmetric. This is in consideration of the shape of the body 30 (see FIGS. 1 and 4).

  An opening 24 is formed in the neck back surface 18 of the neck base end portion 20 in relation to a fastener described later, and a metal female screw 26 that is screwed with a fastening bolt is provided there.

  FIG. 4 shows an end view of the body 30 viewed from the neck receiving portion 40 side, and FIG. 5 shows a plan view of the body 30 viewed from the front side. As can be seen from a comparison between the neck base end portion 20 shown in FIG. 3 and the neck receiving portion 40 shown in FIG. 4, the neck receiving recess 44 formed in the body surface 36 of the neck receiving portion 40 includes a neck base end portion. A dovetail groove 42 complementary to the 20 dovetail grooves 22 is formed. Therefore, by inserting the neck base end portion 20 with the dovetail groove 22 into the dovetail groove 42 of the neck receiving portion 40 (in the direction of the arrow in FIG. 1) and fitting it, the dovetail grooves 22 and 42 are joined together. Thus, the neck 10 and the body 30 are joined.

  A recess 46 for receiving the fastener is formed in the body back surface 38 of the neck receiving portion 40, and a through hole 47 through which a fastener bolt of the fastener is passed is formed in the center. The shape of the fastener receiving recess 46 is a shape that fits the fastener, and may be, for example, a circle.

  The fastener 50 is shown in FIG. The side view of the fastener 50 is shown in the upper part of FIG. 6, and the top view of the fastener 50 is shown in the lower part. Based on the embodiment, the fastener 50 is a structure that uses a single fastening bolt 52 (fastening screw). Further, the fastener 50 uses the fastening bolt 52 together with the metal plate 54. In a state where the neck 10 and the body 30 are screwed together by the fastener 50, the fastener 50 occupies the center position of the musical sound vibration. For this reason, the metal plate 54, which is a heavy component of the fastener 50, is of a size and weight that functions as a tone control component. The shape of the metal plate 54 is a shape that fits the fastener receiving recess 46 of the neck receiving portion 40, and may preferably be an annular or washer shape. For example, an annular metal plate with a diameter of 20-50 mm, preferably about 35 mm, a thickness of 3-10 mm, preferably about 6 mm can be used. As the fastening bolt 52, for example, a flat head countersunk screw that can be turned using a hexagon wrench can be used.

  In the neck body joining apparatus according to the embodiment configured as described above, when the neck 10 and the body 30 are joined, the neck base end portion 20 with the dovetail groove 22 is connected to the dovetail groove 42 of the neck receiving portion 40. By fitting, the dovetail grooves 22 and 42 are joined together. At this time, in connection with the fastener 50, the through hole 47 of the neck receiving portion 40 is aligned with the female screw 26 of the neck base end portion 20. Therefore, the metal plate 54 is set in the fastener receiving recess 46 of the neck receiving portion 40 and the fastening bolt 52 is screwed, so that the shaft of the fastening bolt 52 is screwed into the female screw 26. At this time, the metal plate 54 is placed between the fastening surface 48 formed on the bottom surface of the recess 46, that is, the body back surface 38, and the seating surface of the retaining bolt 52. Depending on how the fastening bolt 52 is tightened, the joining force between the neck 10 and the body 30, and thus the rigidity, changes. For this reason, the tone generated from the guitar can be easily adjusted by the fastening degree of the fastener 50. When tightening is strengthened, the overtone component decreases and the fundamental tone component becomes a dominant tone, and when tightening is weakened, the harmonic component tends to increase.

  Therefore, according to the embodiment, the performer can adjust the tone of the fastener 50 to a tone suitable for the performance by adjusting the fastening degree of the fastener 50 prior to the performance.

  Thus, in the guitar neck body joining apparatus according to the embodiment, the tightening degree of the fastening bolt is an element for controlling the tone generated from the guitar.

  The tone also changes depending on the type (material, size, etc.) of the metal plate 54 that is a tone control component of the fastener 50.

  Therefore, a plurality of types of metal plates 54 can be prepared, and the metal plate attached to the neck receiving portion 40 can be used in advance by replacing it with a metal plate suitable for performance. For example, when an iron metal plate is used, a frequency band of 2 to 4 kHz or more is likely to be generated, and a treble-like (high sound range is emphasized) sound can be obtained. On the other hand, in the case of a brass metal plate, it tends to contain overtone components, tightening the low frequency range and increasing sustain (sound elongation). This tendency tends to increase as the volume of the metal plate increases.

  As described above, since the neck body joining device for a guitar according to the embodiment is a side dovetail type, a constant joining is ensured by the dovetail on the side surface, and the neck and body joining positional relationship with respect to the string Is preserved. For this reason, the structure which uses a some fastening bolt as a fastener becomes unnecessary. That is, the side dovetail structure has a function of maintaining the joining position with respect to the string.

  Utilizing this function, the guitar neck body joining apparatus according to the embodiment uses a single fastening bolt 52 (fastening screw) structure as a fastener. By adjusting the tightening degree of the retaining bolt, the performer can easily adjust the tone generated from the guitar. It is different from the conventional neck body joining device in that the fastener has the function of a tone control device.

  That is, the conventional neck body joining device using a plurality of fastening bolts is basically devised mainly to ensure the joining strength and joining positional relationship between the neck bodies. It is difficult to ensure the necessary bonding strength and bonding position.

  In addition, since the neck body joining apparatus for a guitar according to the embodiment uses a metal plate having a tone control function as a fastener component, the tone can be controlled in various ways according to the fastening degree of the fastening bolt. In addition, by preparing a plurality of types of metal plates and using them by exchanging them, the range of tones that can be adjusted can be expanded.

  This is the end of the description of the embodiment. However, the present invention is not limited to this, and can be modified within the scope of the present invention. For example, in the above-described embodiment, a single fastening bolt structure is used as a fastener, but a plurality of fastening bolts may be used if desired. Moreover, when applying to neck body joining apparatuses, such as a shamisen, the fastener which uses a volt | bolt can be abbreviate | omitted.

10: Neck 12: Neck body 14: Finger board 16: Neck side face 16R: Neck right side face 16L: Neck left side face 18: Neck back face 20: Neck base end 22: Dovetail groove 24 at the neck base end 24: Opening 26: Female Screw 30: Body 36; Body surface 38: Body back surface 40: Neck receiving portion 42: Dovetail groove 44 in the neck receiving portion 46: Recess 46 in the neck receiving portion 46: Recess 47 for holding the fastener 47: Through hole 48: Fastening surface 50: Fastening Tool 52: Fastening bolt 54: Metal plate

Claims (8)

A guitar neck body joining device,
A neck base end portion having a dovetail formed on the side surface of the neck; and
A neck receiving portion of the body in which a dovetail complementary to the dovetail at the base of the neck is formed;
A guitar neck body joining device. 2. The guitar according to claim 1, wherein a dovetail groove formed on a left side surface of the neck base end portion is different from a dovetail groove formed on a right side surface of the neck base end portion in accordance with a shape of the body and is asymmetric. Neck body joining device. The neck body joining apparatus for a guitar according to claim 1 or 2, wherein the neck has no heel at a neck base end portion and has a linear shape as a whole. Further comprising metal fasteners,
The fastening device according to any one of claims 1 to 3, wherein the fastening device has a single fastening bolt structure, and the tone can be controlled by adjusting a joining degree between the neck base end portion and the neck receiving portion. Guitar neck body joining device. The neck body joining device for a guitar according to claim 4, wherein a metal female screw that is screwed with a retaining bolt is formed on a neck back surface of the neck base end portion. The guitar according to claim 4 or 5, wherein the fastener has a metal plate inserted between a seating surface of the fastening bolt and a fastening surface of the neck receiving portion, and the fastening surface of the neck receiving portion is formed on the back surface of the body. Neck body joining device. The guitar neck body joining apparatus according to claim 6, wherein the metal plate is annular. The neck body joining device for a guitar according to claim 6 or 7, wherein a plurality of types of metal plates are prepared for the fastener and used interchangeably as a tone control component.

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