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US-12626676-B2 - Electric guitar body-structure and electric guitar

US12626676B2US 12626676 B2US12626676 B2US 12626676B2US-12626676-B2

Abstract

An body structure of an electric guitar includes a body including a first chamber and a second chamber formed spaced apart from each other, and a slit that connects the first chamber and the second chamber.

Inventors

  • Hideto MATSUDA
  • Kenta ISHIZAKA

Assignees

  • YAMAHA CORPORATION

Dates

Publication Date
20260512
Application Date
20220425
Priority Date
20191205

Claims (19)

  1. 1 . A body structure of an electric guitar, comprising: a body comprising: a first chamber; a second chamber spaced apart from the first chamber; and a slit that connects the first chamber and the second chamber to each other, wherein a cross-sectional area of the slit taken along a direction orthogonal to an arrangement direction of the first chamber and the second chamber is smaller than a cross- sectional area of the first chamber and a cross-sectional area of the second chamber taken along the direction orthogonal to the arrangement direction, wherein the body comprises a top member and a back member that overlap to form the body, the top member having a first thickness and the back member having a second thickness greater than the first thickness, wherein the first chamber is a first recessed portion of a front surface of the back member that faces the top member, and the second chamber is a second recessed portion of the front surface of the back member that faces the top member, and wherein the slit that connects the first chamber and the second chamber to each other is a third recessed portion of the front surface of the back member that faces the top member.
  2. 2 . The body structure of the electric guitar according to claim 1 , further comprising a sound absorbing material disposed in the slit.
  3. 3 . The body structure of the electric guitar according to claim 1 , wherein the first recessed portion of the front surface of the back member is spaced apart from the second recessed portion of the front surface of the back member by a non- recessed portion of the front surface of the back member.
  4. 4 . The body structure of the electric guitar according to claim 3 , wherein a depth of the third recessed portion equals a depth of the first recessed portion and a depth of the second recessed portion.
  5. 5 . The body structure of the electric guitar according to claim 1 , wherein a depth of the third recessed portion is less than a depth of the first recessed portion and a depth of the second recessed portion.
  6. 6 . The body structure of the electric guitar according to claim 1 , wherein the first recessed portion is connected to the second recessed portion by a first slit and a second slit spaced apart from the first slit, the first slit and the second slit being disposed on opposite sides of a non-recessed portion of the front surface of the back member from each other.
  7. 7 . An electric guitar comprising the body structure according to claim 1 .
  8. 8 . A body structure of an electric guitar, comprising: a body comprising: a first chamber; a second chamber spaced apart from the first chamber; and a slit that connects the first chamber and the second chamber to each other, wherein a ratio of a volume of the second chamber to a volume of the first chamber is 70% or more and 130% or less, wherein the body comprises a top member and a back member that overlap to form the body, the top member having a first thickness and the back member having a second thickness greater than the first thickness, wherein the first chamber is a first recessed portion of a front surface of the back member that faces the top member, and the second chamber is a second recessed portion of the front surface of the back member that faces the top member, and wherein the first recessed portion of the front surface of the back member is spaced apart from the second recessed portion of the front surface of the back member by a non-recessed portion of the front surface of the back member.
  9. 9 . The body structure of the electric guitar according to claim 8 , wherein the slit that connects the first chamber and the second chamber to each other is a third recessed portion of the front surface of the back member that faces the top member.
  10. 10 . The body structure of the electric guitar according to claim 9 , wherein a depth of the third recessed portion equals a depth of the first recessed portion and a depth of the second recessed portion.
  11. 11 . The body structure of the electric guitar according to claim 9 , wherein a depth of the third recessed portion is less than a depth of the first recessed portion and a depth of the second recessed portion.
  12. 12 . An electric guitar comprising the body structure according to claim 8 .
  13. 13 . A body structure of an electric guitar, comprising: a body comprising: a first chamber; a second chamber spaced apart from the first chamber; and a slit that connects the first chamber and the second chamber to each other, wherein the body comprises a plurality of slits directly connecting the first chamber and the second chamber to each other.
  14. 14 . The body structure of the electric guitar according to claim 13 , wherein the body comprises a top member and a back member that overlap to form the body, the top member having a first thickness and the back member having a second thickness greater than the first thickness, wherein the first chamber is a first recessed portion of a front surface of the back member that faces the top member, and the second chamber is a second recessed portion of the front surface of the back member that faces the top member, and wherein the first recessed portion of the front surface of the back member is spaced apart from the second recessed portion of the front surface of the back member by a non- recessed portion of the front surface of the back member.
  15. 15 . The body structure of the electric guitar according to claim 13 , wherein the body comprises a top member and a back member that overlap to form the body, the top member having a first thickness and the back member having a second thickness greater than the first thickness, wherein the first chamber is a first recessed portion of a front surface of the back member that faces the top member, and the second chamber is a second recessed portion of the front surface of the back member that faces the top member, and wherein the slit that connects the first chamber and the second chamber to each other is a third recessed portion of the front surface of the back member that faces the top member.
  16. 16 . The body structure of the electric guitar according to claim 15 , wherein a depth of the third recessed portion equals a depth of the first recessed portion and a depth of the second recessed portion.
  17. 17 . The body structure of the electric guitar according to claim 15 , wherein a depth of the third recessed portion is less than a depth of the first recessed portion and a depth of the second recessed portion.
  18. 18 . The body structure of the electric guitar according to claim 13 , wherein the first chamber is a first recessed portion of a front surface of the back member that faces the top member, and the second chamber is a second recessed portion of the front surface of the back member that faces the top member.
  19. 19 . An electric guitar comprising the body structure according to claim 13 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a continuation application of International Application No. PCT/JP2020/045271, filed Dec. 4, 2020, which claims priority to Japanese Patent Application No. 2019-220464, filed Dec. 5, 2019. The contents of these applications are incorporated herein by reference. BACKGROUND OF THE INVENTION Field of the Invention The present disclosure relates to an electric guitar body-structure and an electric guitar. Priority is claimed on Japanese Patent Application No. 2019-220464, filed Dec. 5, 2019, the content of which is incorporated herein by reference. Description of Related Art Japanese Unexamined Patent Application, First Publication No. 2001-154662 (hereinafter referred to as Patent Document 1) discloses a technique capable of producing a beautiful and reverberant sound by providing a plurality of grooves on the inner side of the body plate of the hollow body of a stringed instrument such as an acoustic guitar or a violin. A beautiful and reverberant sound is obtained by appropriately controlling the acoustic phenomenon of the body. SUMMARY OF THE INVENTION In some cases, a plurality of chambers (cavities) are provided in the interior of bodies of electric guitars and the like for weight reduction. However, if there are a plurality of chambers having substantially the same volume in this type of body, the resonance frequencies of the plurality of chambers become substantially the same, giving rise to the necessary to control the acoustic phenomenon of the body. It is difficult to control the acoustic phenomenon of the body even if a plurality of grooves as in Patent Document 1 are provided on the inner surface of the chambers of the body of the electric guitar. The present disclosure has been made in view of the above circumstances, and has as its object to provide an electric guitar body-structure capable of controlling the acoustic phenomenon of a body having a plurality of chambers, and an electric guitar including the same. A first aspect of the present disclosure is an body structure of an electric guitar, including: a body including a first chamber and a second chamber formed spaced apart from each other, and a slit that connects the first chamber and the second chamber. A second aspect of the present disclosure is an electric guitar including the body structure. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of an electric guitar according to an embodiment of the present disclosure as viewed from the front side of the body. FIG. 2 is a plan view of a back member constituting the body of the electric guitar of FIG. 1 as viewed from the front side thereof. FIG. 3 is an enlarged perspective view showing two chambers and slits in the back member of FIG. 2. FIG. 4 is an enlarged plan view showing main parts of an electric guitar body according to another embodiment of the present disclosure. EMBODIMENTS FOR CARRYING OUT THE INVENTION Hereinbelow, embodiments of the present disclosure will be described with reference to FIGS. 1 to 3. As shown in FIG. 1, an electric guitar 1 according to the present embodiment incudes a body structure 2, a neck 3, and strings 4. The neck 3 is connected to an end portion of the body structure 2 and extends in a direction away from the body structure 2 (upward direction in FIG. 1). A head 5 forming the distal end portion in the longitudinal direction of the neck 3 is provided with pegs 6 around which an end portion of each of the strings 4 is wound. The strings 4 are stretched along the longitudinal direction of the neck 3. The body structure 2 includes a body 20. In this embodiment, the body 20 constitutes the entire body structure 2. A bridge 7, an electromagnetic pickup 8, controllers, and the like are attached to the body 20. The bridge 7, the electromagnetic pickup 8, and the controllers are exposed on a front side surface 20a (hereinafter referred to as the front surface 20a) of the body 20 facing the thickness direction of the body 20 (direction orthogonal to the paper surface in FIG. 1). One end of each string 4 is fastened to the bridge 7. The electromagnetic pickup 8 is located between the neck 3 and the bridge 7 in the longitudinal direction of the neck 3. A plurality of the electromagnetic pickups 8 (two in the illustrated example) are arranged in the longitudinal direction of the neck 3. The controllers adjust the volume, tone, and the like of the acoustic signal output from the electromagnetic pickups 8. The controllers include two volume switches 9, a pickup selector 10 for switching the electromagnetic pickups 8 to be activated, and the like. The body 20 of the present embodiment has a top member 21 having a small thickness dimension and a back member 22 (see FIGS. 2 and 3) having a thickness dimension larger than that of the top member 21. The top member 21 and the back member 22 overlap with each other in the thickness direction of the body 20 to form the body 20. The front surface 20a of