Shamisen neck and shamisen equipped with it

The shamisen neck design, featuring an exterior component and frame member extension, addresses bending issues and design limitations by enhancing strength and allowing for decorative freedom.

JP7789353B2Active Publication Date: 2025-12-22SEBERU PICO
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Patent Information

Application Number
JP2021193492
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-29
Publication Date
2025-12-22
Estimated Expiration
2041-11-29

AI Technical Summary

Technical Problem

Existing shamisen necks face issues with bending under string tension and limited design freedom due to the use of core materials inserted only halfway up the neck and hard materials like rosewood, which restricts aesthetic possibilities.

Method used

A shamisen neck design incorporating an exterior component member and a frame member, where the frame member extends from the top to the insertion portion, enhancing strength and allowing for greater design flexibility by using softer materials for the exterior component.

Benefits of technology

The design provides a strong shamisen neck capable of withstanding string tension while enabling various decorative options, reducing the risk of deformation, and maintaining structural integrity over time.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a Shamisen neck having a strength resistant to a tensile force of strings and having increased design flexibility, as well as a Shamisen including the same.SOLUTION: The Shamisen neck includes an appearance constituting member 100 and a framework member 160. The appearance constituting member 100 includes a head part 110 on one end, and an insertion part 140 to be inserted into a body on the other end. The framework member 160 extends from the head part 110 to the insertion part 140.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present invention relates to a shamisen, and more particularly to the structure of the neck of a shamisen. [Background technology]

[0002] Traditionally, there has been a need for a mechanism to increase the strength of the shamisen neck so that it does not bend due to the tension of the strings.

[0003] For example, Patent Document 1 shows a shamisen neck in which the neck body is formed by kneading particles or powdered aggregate with synthetic resin, and a core material is inserted inside the neck to increase its strength.

[0004] From another perspective, to prevent deformation of the neck, hard materials such as rosewood and rosewood, which have a certain level of strength, were used. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 8-160940 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the shamisen of Patent Document 1, the core material, which has strength, is inserted only halfway up the neck, so there is a risk that the neck will give in to the tension of the strings and bend.

[0007] Furthermore, the hard materials that have traditionally been used, such as rosewood and rosewood, have limited the freedom of design for the shamisen's appearance.

[0008] The present invention has been made in consideration of the above problems, and aims to provide a shamisen neck that improves the strength of the neck and increases the degree of freedom in design, and a shamisen equipped with the same. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the shamisen neck of the present invention has an exterior component member 100 and a frame member 160, and the exterior component member 100 has a top portion 110 at one end and an insertion portion 140 at the other end that is inserted into the body, and the frame member 160 extends from the top portion 110 to the insertion portion 140. [Effects of the Invention]

[0010] To provide a shamisen neck having strength sufficient to withstand the tension of strings and allowing for increased freedom in design, and a shamisen equipped with the neck. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view [overall] of a shamisen neck 10. [Figure 2] is a perspective view of the shamisen neck 10 [overall], 1 is a plan view of the shamisen body 200. [Figure 3] This is a plan view [overall] of the shamisen neck 10A. [Figure 4] FIG. 1 is a perspective view of a shamisen neck 10A [overall]. [Figure 5] is a plan view of the shamisen neck 10B [overall], This is a plan view of the middle part of the shamisen neck 10C. [Figure 6] is a perspective view of the middle part of the neck 10D of the shamisen. is a perspective view of the middle part of the neck of a shamisen (10E), <c>This is a cross-section of the shamisen neck 10E [middle part]. < / c> [Figure 7] and is a perspective view of the middle part of the 10F neck of a shamisen. <c>and <d>This is a perspective view of the middle part of a 10G shamisen neck. < / d> < / c> [Figure 8] is a perspective view of the middle part of a 10H shamisen neck. is a perspective view of the middle part of the neck 10I of a shamisen. <c>This is a perspective view of the middle part of the shamisen neck 10E. < / c> [Figure 9] 1 is a perspective view of the entire shamisen neck 20. [Figure 10] This is a perspective view of the shamisen neck 30 [Tenjin section]. [Figure 11] This is a perspective view of the shamisen neck 30A [Tenjin section]. DETAILED DESCRIPTION OF THE INVENTION

[0012] In the present invention, "up, down, left, right, front, back" (in the case of an oblique view) and "up, down, left, right" (in the case of a two-dimensional view) are indicated by arrows in the drawing, and specifically, the "front-to-back direction" is the longitudinal direction of the rod, the "up-down direction" is the direction perpendicular to the base surface 102 of the exterior component 100 described below, and the "left-to-right direction" is the short direction of the rod perpendicular to the front-to-back direction and the up-down direction.

[0013] The content described above may be used in subsequent embodiments (including modified examples). Except where a separate explanation is required, duplicate content in the description of the embodiments is omitted as appropriate.

[0014] In the present invention, the "top portion 110" refers to the area including the tip portion 111, the urinary pouch 112, and the breast pouch 113, and the "insertion portion 140" refers to the area that can be inserted into the torso. Also, the "middle portion 120" refers to the area between the top portion 110 and the insertion portion 140.

[0015] The body 200 of the present invention has the same shape as the body of a conventional shamisen. The body 200 has an insertion opening 201 into which the neck is inserted, and an extension opening 202 on the surface opposite the insertion opening 201. The insertion end 141 is the part where the tip of the insertion part 140 penetrates the extension opening 202 and protrudes outside the body 200. Both the insertion opening 201 and the extension opening 202 are through holes (see Figure 2B). [First Example]

[0016] 1 and 2A show a first embodiment (shamisen neck 10). Shamisen neck 10 comprises an exterior component member 100 and a frame member 160. In Fig. 1 etc., the two-dot chain line represents body 200, and the dashed line represents the bottom of groove portion 101 inside exterior component member 100.

[0017] [Exterior component 100] Appearance component member 100 constitutes the exterior of the shaft body, and extends from top portion 110 to insertion portion 140. Appearance component member 100 has top portion 110, middle portion 120, and insertion portion 140 as its areas.

[0018] The upper surface of the exterior component member 100 is a substantially flat base surface 102, and a groove 101 extending in the front-to-rear direction is formed in this base surface 102. The depth of this groove 101 is substantially equal to the length of the skeletal member 160 in the up-down direction, and the skeletal member 160 can be fitted into the groove 101.

[0019] Furthermore, the exterior structural member 100 is made of a material with lower strength than the framework member 160, and the specific materials of the exterior structural member 100, including modified examples, will be described in the [Material] section below.

[0020] [Skeleton member 160(1)] The skeletal member 160 is fitted into the groove 101 of the exterior component member 100 to form the skeleton of the shaft, and is a member that improves the strength of the shaft 10.

[0021] The skeletal member 160 has a thin plate shape and is made of a material that is stronger than the material of the exterior structural member 100 and is less susceptible to deterioration over time. For example, it is preferably made of a strong material such as metal. The thickness (size in the left-right direction) of the skeletal member 160 is preferably about 2 to 4 mm. Specific materials for the skeletal member 160 will be described in the "Material" section below.

[0022] The cross-sectional shape of the skeletal member 160 is a generally rectangular shape that is elongated in the vertical direction. For example, by making the cross-section of the skeletal member 160 "I-shaped," it is possible to achieve both improved strength against the tension of the thread and ease of fitting into the groove portion 101 of the exterior component member 100. The skeletal member 160 is fitted into the base surface 102 of the exterior component member 100 approximately perpendicularly.

[0023] The skeletal member 160 comprises a base portion 165 and an insertion protrusion 166. The base portion 165 is a portion that fits into the groove portion 101 in the intermediate portion 120 of the exterior component member 100, and the insertion protrusion 166 is a portion that fits into the groove portion 101 in the insertion portion 140 of the exterior component member 100. In other words, the insertion protrusion 166 is a portion that is inserted into the inside of the body 200.

[0024] The length of the insertion protrusion 166 in the front-rear direction of the frame member 160 is a length necessary to pass through the insertion port 201 of the body 200 and reach the internal space of the body 200 .

[0025] (First attachment portion 161) A first engaging portion 161 that engages (or fits) with the top portion 110 of the exterior component member 100 is formed at the front end of the framework member 160. This first engaging portion 161 is shaped so that it can be engaged with the top portion 110 of the exterior component member 100, and can be shaped so that the two can engage with each other and fix the engaging position. In addition, the rear end of the top portion 110 of the exterior component member 100 has an inverted shape of the first engaging portion 161 so that it can be engaged with the framework member 160.

[0026] In the illustrated example, a step (notch) is formed below the front end of the framework member 160. This step makes it possible to fix the engagement position of the appearance component member 100 with the head portion 110. There are various variations in the shape of the first engagement portion 161.

[0027] (First stop portion 163) The frame member 160 has a first stop portion 163 on the surface that abuts against the side surface of the body 200. The first stop portion 163 is located above the insertion protrusion 166.

[0028] The first stop portion 163 can regulate the fitting of the body 200 and the neck 10. That is, when inserting the neck 10 into the insertion port 201 of the body 200, the insertion length can be limited.

[0029] (Second stop portion 164) The frame member 160 has a second stop portion 164 on the surface that abuts against the side surface of the body 200. The second stop portion 164 is located below the insertion protrusion 166.

[0030] The second stop portion 164 can regulate the fitting of the body 200 and the neck 10. That is, when inserting the neck 10 into the insertion port 201 of the body 200, the insertion length can be limited.

[0031] [Supplementary information for the first embodiment] The shamisen neck 10 can be assembled by fitting the skeletal member 160 into the groove 101 of the exterior component member 100. After assembly, it is preferable that the base surface 102 of the exterior component member 100 and the top surface of the skeletal member 160 are at the same height and flush with each other.

[0032] The insertion protrusion 166 of the frame member 160 extends through the insertion port 201 of the body 200 to the inside of the body 200, thereby increasing the strength of the entire shaft 10.

[0033] The exterior structural member 100 and the framework member 160 may be fixed together by screws or adhesive.

[0034] [Effects of the first embodiment] The framework member 160 extends up to the insertion portion 140 of the exterior component member 100, thereby increasing the strength of the entire neck, and it is possible to provide a strong shamisen neck that can withstand the tension of the strings even after the neck is inserted into the body 200 to form the shamisen.

[0035] Furthermore, the frame member 160 itself is less likely to deteriorate over time, which makes it possible to prevent deformation of the entire shaft due to deterioration over time.

[0036] Furthermore, since the skeletal member 160 maintains the strength of the shaft, the exterior component member 100 can be made of a relatively soft material, and various decorations can be applied to the exterior component member 100, allowing for greater freedom in design.

[0037] [Modification 1 of the First Embodiment] 3 and 4 show a first modification of the first embodiment (a shamisen neck 10A). The shamisen neck 10A comprises an exterior component 100, a framework member 160, and an attachment member 150.

[0038] [Skeleton member 160(2)] As shown in the figure, the insertion protrusion 166 of the skeleton member 160 extends to a position corresponding to the insertion end 141 of the exterior component member 100. In other words, the insertion protrusion 166 of the skeleton member 160 has a length that extends to a position corresponding to the insertion end 141 of the exterior component member 100. In other words, the insertion protrusion 166 of the skeleton member 160 passes from the insertion opening 201 of the body 200 through the extension opening 202 and extends to the outside of the body 200.

[0039] Furthermore, the front end of the skeletal member 160 extends to a position corresponding to the tip 111 of the top portion 110 of the exterior component member 100. After the skeletal member 160 and the exterior component member 100 are fitted together, the skeletal member 160 on the top portion side is shaped to bypass the pegs of a shamisen. In other words, the skeletal member 160 is shaped to bend downward near the pegs 112 so that the space around the pegs 112 is hollow, and then bend upward after bypassing the pegs. By locally shortening the vertical length of the skeletal member 160 on the top portion side (compared to the vertical length of the base portion 165), it is possible to reduce the weight of the skeletal member 160.

[0040] [Attachment member 150] The attachment member 150 has a thin plate shape and extends long in the front-to-rear direction, with a flat base surface 151 formed on the upper surface of the attachment member 150. The length of the attachment member 150 in the front-to-rear direction is approximately equal to the length of the intermediate portion 120 of the exterior component member 100 in the front-to-rear direction, and the length of the attachment member 150 in the left-to-right direction is also approximately equal to the length of the intermediate portion 120 of the exterior component member 100 in the left-to-right direction.

[0041] The attachment member 150 is a member that is called a fingerboard in the terminology of stringed instruments such as guitars, and may have the same strength as the frame member 160. The specific material of the attachment member 150 will be described in the [Material] section below.

[0042] [Supplementary Note on Modification 1 of the First Embodiment] 4, before assembly, the top portion 110 of the shamisen neck 10A is separated from the exterior component 100. The top portions 110 are a pair, and screw holes are formed on the rear end of each top portion 110, the front end of the exterior component 100, and the front end of the frame member 160.

[0043] The pair of head portions 110, exterior structural members 100, and framework member 160 are screwed together (fixed) using connecting members 190 such as screws and connected members 195 such as nuts.

[0044] [Effects of Modification 1 of the First Embodiment] By having the frame member 160 extend into the body 200, it is possible to prevent the insertion portion of the shamisen neck 10A from coming into contact with the body 200 and becoming worn and thin (thinning of the neck). Furthermore, it is also possible to maintain an appropriate angle between the shamisen neck 10B and the skin surface of the body 200 (the height of the Ha note in shamisen terminology).

[0045] Furthermore, since the frame member 160 is made of a strong material such as metal, the end portion can be modified by processing. As an example of processing the end portion of the frame member 160, a wall-hanging hook or a shoulder belt attachment portion can be provided on the top side of the frame member 160.

[0046] The strength of shamisen neck 10A itself can be further increased by having skeletal member 160 extend from tip end 111 to insertion end 141. Of course, by having skeletal member 160 extend to tip end 111, it is also possible to prevent damage to the top portion itself.

[0047] [Modification 2 of the First Embodiment] 5A shows a second modification of the first embodiment (a shamisen neck 10B). The shamisen neck 10B includes an exterior component 100 and a framework member 160.

[0048] [Skeleton member 160(3)] The insertion protrusion 166 of the shamisen neck 10B extends to a position corresponding to the insertion tip 141 of the exterior component 100.

[0049] The shape of the first attachment part 161 in the shamisen neck 10B shown in the figure is different from the shape of the first attachment part 161 in the shamisen neck 10, and the center of the front end side of the frame member 160 is recessed.

[0050] (Second attachment portion 162) A second engagement portion 162 that engages the fitting of the neck 10B and the body 200 is formed at the rear end of the frame member 160 (the tip of the insertion protrusion 166). In the illustrated example, a step (notch) is formed above the tip of the insertion protrusion 166. This step makes it possible to fix the engagement position between the shamisen neck 10B and the body 200.

[0051] That is, the second engaging portion 162 abuts against the inner wall of the body 200 near the outlet 202, thereby stably engaging (fitting) the rod 10B with the body 200. The shape of the second engaging portion 162 can be varied in many ways.

[0052] (Through hole 167) The illustrated framework member 160 has a plurality of through holes 167 formed in two upper and lower rows in the base portion 165. These through holes 167 may be screw holes. The two upper and lower rows of through holes 167 also make it possible to adjust the attachment position of the appearance component member 100 and the framework member 160 in two stages.

[0053] [Effects of Modification 2 of the First Embodiment] The formation of the second engagement portion 162 stabilizes the engagement state between the neck 10B and the body 200 of the shamisen.

[0054] Furthermore, if the exterior component members 100 are made of a soft material such as resin or clay, the left and right exterior component members 100 can be connected through the through-holes 167, which stabilizes the assembled state of the exterior component members 100 and the framework member 160. The formation of these through-holes 167 also leads to a reduction in the weight of the framework member 160.

[0055] [Modification 3 of the First Embodiment] 5B shows a third modification of the first embodiment (a shamisen neck 10C). The shamisen neck 10C includes an exterior component 100 and a framework member 160.

[0056] [Skeleton member 160(4)] The insertion protrusion 166 of the shamisen neck 10C extends to a position corresponding to the insertion tip 141 of the exterior component 100.

[0057] The shape of the first attachment part 161 in the shamisen neck 10C shown in the figure is different from the shape of the first attachment part 161 in the shamisen neck 10B, and the center of the front end side of the frame member 160 protrudes.

[0058] (Second attachment portion 162) The shape of the second attachment part 162 in the shamisen neck 10C shown in the figure is different from the shape of the second attachment part 162 in the shamisen neck 10B, and a step (notch) is formed below the tip of the insertion protrusion 166.

[0059] (Uneven part 168) As shown in the figure, uneven portions 168 are formed on the upper and lower ends of the base portion 165 of the skeletal member 160. The uneven portions 168 may be jagged.

[0060] [Effects of Modification 3 of the First Embodiment] When the exterior component member 100 is made of resin or the like, by hooking it onto the uneven portion 168, the degree of adhesion between the exterior component member 100 and the skeletal member 160 is strengthened, and the engagement state between the exterior component member 100 and the skeletal member 160 can be stabilized.

[0061] [Modification 4 of the First Embodiment] 6A shows a fourth variation of the first embodiment (a shamisen neck 10D). The shamisen neck 10D comprises an exterior component member 100 and a frame member 160. As shown in the figure, a groove 101 is formed on the underside of the exterior component member 100, and the frame member 160 can be fitted into this groove 101.

[0062] The bottom surface of the framework member 160 and the bottom surface of the exterior component member 100 may form the same curved surface, or the bottom end of the framework member 160 may protrude from the bottom surface of the exterior component member 100 .

[0063] [Effects of Modification 4 of the First Embodiment] By forming the groove portion 101 on the underside of the exterior component member 100, the degree of freedom in combining the exterior component member 100 and the framework member 160 is increased.

[0064] Furthermore, by increasing the vertical length of the skeletal member 160 and making the lower end of the skeletal member 160 protrude from the lower surface of the exterior component member 100, the strength of the shamisen can also be increased.

[0065] [Modification 5 of the First Embodiment] 6B and 6C show a fifth modification of the first embodiment (a shamisen neck 10E). The shamisen neck 10E includes a pair of exterior components 100 and a framework member 160.

[0066] As shown in the figure, a skeletal member 160 is sandwiched and fixed between a pair of exterior component members 100. The skeletal member 160 is sandwiched between the pair of exterior component members 100 from the left and right sides. In the present invention, "fixed" includes not only a state in which the skeletal member 160 is fixed with an adhesive or the like, but also a state in which the skeletal member 160 is fixed by pressure or the like.

[0067] Furthermore, in the intermediate portion 120, the vertical length of the skeletal member 160 and the vertical length of the exterior component member 100 are approximately the same, and after assembly, the upper surface of the skeletal member 160 and the upper surface of the exterior component member 100 are flush (on the same plane), and the lower surface of the skeletal member 160 and the lower surface of the exterior component member 100 form the same curved surface.

[0068] [Effects of Modification 5 of the First Embodiment] By sandwiching and fastening the skeletal member 160 between a pair of exterior component members 100, there is a greater degree of freedom in combining the exterior component members 100 and skeletal member 160. Furthermore, by forming the same curved surface on the underside of the skeletal member 160 and the underside of the exterior component member 100, the aesthetic appearance of the shamisen neck can be improved.

[0069] [Modification 6 of the First Embodiment] 7A and 7B show a sixth modification of the first embodiment (a shamisen neck 10F). The shamisen neck 10F includes a pair of exterior structural members 100 and a framework member 160.

[0070] As shown in the figure, a groove 101 is formed in each exterior component member 100, and the frame member 160 is sandwiched and fixed between a pair of exterior component members 100 from above and below.

[0071] The depth of the groove 101 of the upper exterior component 100 and the depth of the groove 101 of the lower exterior component 100 are combined to be approximately equal to the length of the framework member 160 in the vertical direction.

[0072] [Effects of Modification 6 of the First Embodiment] The lower exterior component 100 of the shamisen neck 10F can be replaced to fit the size of the player's hand.

[0073] [Modification 7 of the First Embodiment] 7C and 7D show a seventh variation of the first embodiment (a shamisen neck 10G). As shown in the figures, the shamisen neck 10G has a pair of exterior component members 100 in the shape of a substantially square pillar on the top and another exterior component member 100 in the shape of a substantially round pillar on the bottom.

[0074] In the intermediate portion 120, a plurality of through holes 167 (screw holes) are formed in the skeletal member 160, and a plurality of through holes 103 (screw holes) are formed in the lower exterior component member 100, and the lower exterior component member 100 and the skeletal member 160 are screwed together by a connecting member 190 and a connected member 195.

[0075] [Effects of Modification 7 of the First Embodiment] Like the shamisen neck 10F, the lower exterior component 100 of the shamisen neck 10G can be replaced to fit the size of the player's hand.

[0076] [Modification 8 of the First Embodiment] 8A shows an eighth modification of the first embodiment (a shamisen neck 10H). The shamisen neck 10H includes an exterior component 100 and a framework member 160.

[0077] As shown in the figure, the attachment member 150 is formed integrally with the frame member 160, the cross section of the frame member 160 is T-shaped, and a flat surface is formed on the top surface of the frame member 160.

[0078] [Effects of Modification 8 of the First Embodiment] By making the cross section of the skeletal member 160 T-shaped, the strength of the skeletal member 160 itself is increased, and the strength of the entire shaft after the skeletal members 160 are combined is also improved.

[0079] [Modification 9 of the First Embodiment] 8B shows a modification 9 of the first embodiment (a shamisen neck 10I). The shamisen neck 10I includes an exterior component 100 and a framework member 160.

[0080] As shown in the figure, a skeleton member 160 is formed integrally with the attachment member 150, and the cross section of the skeleton member 160 is U-shaped, with a flat surface formed on the upper surface of the skeleton member 160. The opening of the U-shape faces downward.

[0081] [Effects of Modification 9 of the First Embodiment] By making the cross section of the skeletal member 160 U-shaped, the strength of the skeletal member 160 itself is increased, and the strength of the entire shaft after the skeletal members 160 are combined is also improved.

[0082] [Modification 10 of the First Embodiment] 8C shows a modification 10 (shamisen neck 10J) of the first embodiment. The shamisen neck 10J includes an exterior component 100, a frame member 160, and an attachment member 150.

[0083] As shown in the figure, the skeleton member 160 has a pipe shape with a hollow inside, and the cross section of the skeleton member 160 is approximately rectangular.

[0084] [Effects of Modification 10 of the First Embodiment] The pipe-shaped skeletal member 160 increases the strength of the skeletal member 160 itself, and also increases the strength of the entire shaft after the skeletal members 160 are combined. In addition, the hollowness of the skeletal member 160 also makes it possible to reduce the weight of the skeletal member 160 itself.

[0085] [Second Example] 9 shows the second embodiment (shamisen neck 20). Shamisen neck 20 is equipped with exterior components 100, attachment members 150, frame members 160, frame members 170, and cap member 145. That is, shamisen neck 20 is equipped with two frame members (frame member 160 and frame member 170), and is equipped with cap member 145 on the rear end side of the neck.

[0086] The exterior structural member 100, the skeletal member 160, and the skeletal member 170 can be screwed together by a connecting member 190 and a connected member 195.

[0087] [Skeleton member 170] The skeletal member 170 can be connected (screwed) to the skeletal member 160 to form a single skeletal member. The length in the front-to-rear direction of the skeletal member 170 of the shamisen neck 20 is approximately equal to the length of the insertion portion 140 of the exterior component member 100 of the shamisen neck 10. The materials of the skeletal member 160 and the skeletal member 170 may be the same or different. The specific material of the skeletal member 170 will be described in the [Material] section below.

[0088] The base end 171 of the skeletal member 170 has a hollow pipe shape, and the insertion protrusion 166 of the skeletal member 160 can be inserted into it. In addition, the tip end 172 of the skeletal member 170 has a tapered shape, and a cap member 145, which will be described later, can be attached to this tip end 172.

[0089] [Cap member 145] The cap member 145 is hollow and has a generally cylindrical shape, with a slit formed at the bottom. The tip 172 of the skeletal member 170 can be fitted into this slit. An insertion tip 141 is provided at the tip of the cap member 145. The specific material of the cap member 145 will be described in the [Material] section below.

[0090] [Effects of the second embodiment] The framework member 170 can increase the strength of the neck inside the body 200. The framework member 170 extends to the insertion end 141, thereby increasing the strength of the shamisen neck 20 itself.

[0091] Because it protrudes outside of body 200, insertion tip 141 is relatively susceptible to damage, but even if insertion tip 141 is damaged, it is not necessary to replace the entire shaft, and repair costs can be kept low by replacing only cap member 145. Similarly, even if frame member 170 is damaged, it is not necessary to replace the entire shaft, and repair costs can be kept low by replacing only frame member 170.

[0092] [Third Example] 10 shows the third embodiment (shamisen neck 30). Shamisen neck 30 comprises an exterior component member 100 and a frame member 160. Exterior component member 100 and frame member 160 can be screwed together using a connecting member 190 and a connected member 195.

[0093] [Skeleton member 160(5)] The front end side of the framework member 160 extends to the thread storage 112 and forms a substantially rectangular block that is hollow in the vertical direction.

[0094] (spool insertion hole 169) The side of this block is formed with thread spool insertion holes 169. In the example shown, three thread spool insertion holes 169 are formed on each side of the block, and a thread spool can be inserted into each of the thread spool insertion holes 169.

[0095] [Effects of the third embodiment] The extension of the framework member 160 to the thread storehouse 112 prevents damage to the thread storehouse 112. In addition, since the thread spool can be inserted into the thread spool insertion hole 169, the insertion state of the thread spool can be stabilized.

[0096] [Modification 1 of the third embodiment] 11 shows a first variation of the third embodiment (shamisen neck 30A). The shamisen neck 30A comprises an exterior component member 100, a skeletal member 160, and a skeletal member 180. The exterior component member 100, the skeletal member 160, and the skeletal member 180 can be screwed together using a connecting member 190 and a connected member 195.

[0097] [Skeleton member 180] The skeletal member 180 can be connected (screwed) to the skeletal member 160 by sandwiching the end of the top part 110 of the exterior component member 100 between them to form a single skeletal member. The length of the skeletal member 180 in the front-to-rear direction is approximately equal to the length of the top part 110 of the exterior component member 100. The material of the skeletal member 160 and the skeletal member 180 may be the same or different. The specific material of the skeletal member 180 will be described in the [Material] section below.

[0098] The frame member 180 is made of thin plate and has a U-shape when viewed from above. Three bobbin insertion holes 169 are formed on each side of the frame member 180, and a bobbin can be inserted into each of the bobbin insertion holes 169. Although not shown, a member for protecting the top part may be provided on the top or bottom of the frame member 180.

[0099] [Effects of Modification 1 of the Third Embodiment] The tenjin portion of shamisen neck 30A has a hollow space at the rear end of the tenjin portion in addition to the space for the string storehouse 112, and a design element (for example, a element having a light-emitting element) may be fitted into this hollow space. This enhances the design of the shamisen neck. Of course, by extending skeletal member 180 to tip end 111, it is also possible to prevent damage to the tenjin portion itself.

[0100] [Additional information for all examples] A preferred embodiment of the present invention has been described, but since this embodiment is merely one form of the shamisen neck (and shamisen) according to the present invention, modifications can be made without departing from the spirit of the present invention.

[0101] It should be noted that the drawings are merely schematic representations of the components of the shamisen neck (and shamisen), and the actual dimensions and dimensional ratios of these components do not necessarily match those shown in the drawings.

[0102] The drawings included in this specification mainly show the state before assembly, and drawings showing the state after assembly are basically omitted, but naturally, the shamisen neck of this specification is assumed to be the shamisen neck after assembly. Figures 6C, 7B, and 7D are drawings showing the middle section 120 after assembly.

[0103] [material] The material for the exterior component 100 can be a variety of materials, such as wood that is softer than rosewood or rosewood, plastic, synthetic resin, ceramic, clay, pottery, rubber, synthetic fiber, fiber-reinforced plastic (FRP), alloy, etc. The material for the exterior component 100 can be a soft material such as resin, or it is also possible to select a material that is easy to decorate the neck of the shamisen itself.

[0104] The frame members 160, 170, and 180 can be made of a variety of materials such as steel, stainless steel, titanium, aluminum, magnesium alloy, phosphor bronze, etc., with strong materials being preferred.

[0105] The attachment member 150 can be made of a variety of materials, such as steel, stainless steel, titanium, aluminum, phosphor bronze, wood, plastic, and synthetic resin.

[0106] The cap member 145 can be made of a variety of materials, such as wood, plastic, synthetic resin, ceramic, clay, pottery, rubber, synthetic fiber, and alloy. [Explanation of symbols]

[0107] 10, 20, 30 shaft 100 Appearance components 101 Groove 102 base surface 103 Through hole 110 Tenjinbu 111 Tip 112 Thread Storehouse 113 Breast Bag 120 Middle section 140 Insertion part 141 Insertion end 142 Body joint 145 Cap member 150 Attached board 151 base surface 160 Skeleton members 161 First Attachment 162 Second Attachment 163 First Stop 164 Second Stop 165 base 166 Insertion protrusion 167 Through Hole 168 Uneven part 169 Spool insertion hole 170 Skeleton members 180 Skeleton members 190 Connecting member 195 Connected members 200 Torso 201 Outlet 202 Projection opening

Claims

1. A shamisen neck having an exterior component 100 and a skeleton member 160, The exterior component 100 has a top portion 110 at one end and an insertion portion 140 at the other end to be inserted into the body. The skeletal member 160 extends from the head portion 110 to the insertion portion 140, A shamisen neck characterized in that a first stop portion (163) and / or a second stop portion (164) that abuts against the side of the body and regulates the fitting of the body and the neck are formed on the skeletal member (160).

2. The shamisen neck according to claim 1, The shamisen neck is characterized in that the insertion portion (140) has an insertion tip (141) that penetrates the side surface of the body opposite the insertion opening and protrudes outside the body, and the skeletal member (160) extends to the insertion tip (141).

3. The shamisen neck according to claim 1 or 2, The skeletal member 160 extends to the tip 111 of the top part 110. A shamisen neck characterized by:

4. The shamisen neck according to any one of claims 1 to 3, a first engaging portion 161 that engages one end of the framework member 160 with the head portion 110; A shamisen neck formed on the skeletal member (160).

5. The shamisen neck according to any one of claims 1 to 4, A second engaging portion 162 that engages the other end of the skeletal member 160 with the trunk is A shamisen neck formed on the skeletal member (160).

6. The shamisen neck according to any one of claims 1 to 5, An attachment plate 150 having a substantially flat base surface 151 A shamisen neck attached to the skeletal member (160).

7. The shamisen neck according to any one of claims 1 to 6, At least one through hole 167 A shamisen neck formed on the skeletal member (160).

8. The shamisen neck according to any one of claims 1 to 7, At least one generally uneven portion 168 A shamisen neck formed on the skeletal member (160).

9. The shamisen neck according to any one of claims 1 to 8, A shamisen neck, characterized in that the cross-sectional shape of the framework member (160) corresponding to the intermediate portion (120) between the top portion (110) and the insertion portion (140) is a substantially rectangular shape that is long in the vertical direction.

10. The shamisen neck according to any one of claims 1 to 9, The upper surface of the framework member 160 and the upper surface of the exterior component member 100 are A shamisen neck characterized by its flush surface.

11. The shamisen neck according to any one of claims 1 to 10, A groove portion 101 is formed in the exterior component 100, A shamisen neck characterized in that the skeletal member (160) is fitted into the groove (101).

12. The shamisen neck according to any one of claims 1 to 11, The framework member 160 is sandwiched and fixed between the pair of exterior component members 100. A shamisen neck characterized by:

13. The shamisen neck according to claim 12, The lower surface of the framework member 160 and the lower surface of the exterior component member 100 are A shamisen neck characterized by having a uniform curved surface.

14. The shamisen neck according to any one of claims 1 to 13, In the head portion 110 of the framework member 160, A shamisen neck characterized in that a peg insertion hole 169 through which a peg can be inserted is formed.

15. The shamisen neck according to any one of claims 1 to 14, A shamisen neck characterized in that the material of the exterior structural member 100 is wood, plastic, synthetic resin, ceramic, clay, pottery, rubber, synthetic fiber, or fiber reinforced plastic (FRP).

16. A shamisen comprising the shamisen neck according to any one of claims 1 to 15.

Citation Information

Patent Citations

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