JP6735789B2 - Darts barrel and darts barrel configuration set - Google Patents

Darts barrel and darts barrel configuration set Download PDF

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JP6735789B2
JP6735789B2 JP2018106818A JP2018106818A JP6735789B2 JP 6735789 B2 JP6735789 B2 JP 6735789B2 JP 2018106818 A JP2018106818 A JP 2018106818A JP 2018106818 A JP2018106818 A JP 2018106818A JP 6735789 B2 JP6735789 B2 JP 6735789B2
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高仁 森本
高仁 森本
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Description

本発明は、主にソフトダーツのダーツ矢の構成部品として使用するダーツ用バレル、並びに、前記ダーツ用バレルをなす複数の構成パーツを含むと共に、各構成パーツを組み合わせることでダーツ用バレルを構成する、ダーツ用バレルの構成セットに関する。 The present invention mainly includes a dart barrel used as a component of a dart arrow of a soft dart, and a plurality of component parts forming the dart barrel, and a dart barrel is configured by combining the respective component parts. , A set of barrels for darts.

ダーツ用バレルとして、従来、内芯部と外周部とを有する二重構造であって、前記外周部は酸化されにくい金属で構成し、内芯部は前記外周部を構成する金属とは異種の金属で構成したものが開示される（特許文献１）。 As a barrel for darts, conventionally, it has a double structure having an inner core portion and an outer peripheral portion, the outer peripheral portion is made of a metal that is difficult to be oxidized, and the inner core portion is different from the metal that constitutes the outer peripheral portion. A structure made of metal is disclosed (Patent Document 1).

このバレルの外周部は、母材となる金属材料の中心部分を刳り抜くことによって穿設した貫通又は非貫通の孔部と共に構成し、当該孔部の内周面にネジ溝を形成して、該孔部内に異種金属を螺挿することにより内芯部を構成している。この構成において、外周部内に螺挿された内芯部をドライバー等の工具で前後に進退させることにより、ダーツ用バレル自体の前後重量バランスを任意に微調整することが可能となる、とされる。 The outer peripheral portion of the barrel is configured with a through hole or a non-through hole formed by hollowing out a central portion of a metal material as a base material, and a thread groove is formed on an inner peripheral surface of the hole portion, The inner core portion is formed by screwing a dissimilar metal into the hole portion. In this configuration, by moving the inner core portion screwed into the outer peripheral portion back and forth with a tool such as a screwdriver, it is possible to arbitrarily fine-tune the front-rear weight balance of the darts barrel itself. ..

特開２００８−９３１５３号公報JP, 2008-93153, A

しかしながら、上記特許文献１に開示されている技術では、内芯部が外周部の螺子孔の螺子区間内に螺入しているため、内芯部の螺子位置変化によるバランスの調整作業が容易ではなく、また、調整時の前後重量バランス、すなわち内芯部が外周部内のどの位置にあるのかを確認することができなかった。また、２部品のみの螺入構成であるため、ダーツ矢が投擲時に回転することで内芯部の螺子位置がずれたり、雌ネジと雄ネジのフランク間の遊びがあることでガタツキが生じたりする場合がある。 However, according to the technique disclosed in Patent Document 1, since the inner core portion is screwed into the screw section of the screw hole in the outer peripheral portion, it is not easy to adjust the balance by changing the screw position of the inner core portion. In addition, it was not possible to confirm the weight balance between the front and rear at the time of adjustment, that is, the position of the inner core portion in the outer peripheral portion. Also, since the darts arrow is a two-part screw-in configuration, the screw position of the inner core part shifts when the darts arrow rotates during throwing, and rattling may occur due to play between the flanks of the female screw and the male screw. There is a case.

そこで本発明は、バランスの調整作業や、調整時の前後重量バランスを確認することが比較的容易であり、また、ダーツ矢の投擲によっても螺子位置がずれたり、雌ネジと雄ネジのフランク間の遊びによるガタツキが生じたりしないダーツ用バレル、或いは、バレルの構成セットを提供することを課題とする。 Therefore, according to the present invention, it is relatively easy to confirm the balance adjustment work and the front-rear weight balance at the time of adjustment, and the screw position is displaced even when the darts arrow is thrown, or between the flanks of the female screw and the male screw. An object of the present invention is to provide a barrel for darts or a configuration set of barrels in which rattling does not occur due to play of.

上記課題に鑑みて、本発明においては、以下の手段のうち一つ以上を選択的に講じるものとしている。但し以下において構成の名称に続けて記載する数字乃至アルファベットは、図面の理解のために便宜的に付した符号であり、これによって構成の概念ないし形状、構造を限定する趣旨ではない。 In view of the above problems, in the present invention, one or more of the following means are selectively taken. However, in the following, the numbers or alphabets described after the name of the configuration are reference symbols for convenience of understanding the drawings, and are not intended to limit the concept, shape, or structure of the configuration.

（１）本発明に係るダーツ用バレルは、
一軸方向へ直線状に伸びた棒状体１０の長さ方向（軸方向）の所定位置に張出部１１を一体的に有した一体製材からなるコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得るフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得るリアパーツ３と、を組み合わせて、
バレル部品１００（１００Ａ、１００Ｂ、・・・）がダーツ矢に組み構成されるダーツ用バレルであって、
フロントパーツ２の筒孔前端２１Ｅから第一内螺子部２０の前半部にダーツ矢のチップ部品Ｔの雄螺子部Ｔ１０２が螺入されると共に、
リアパーツ３の筒孔後端３２Ｅから第二内螺子部３０の後半部にダーツ矢のシャフト部品Ｓの雄螺子部Ｓ１０３が螺入されてダーツ矢を組み構成するものであり、
第一内螺子部２０及び第二内螺子部３０は、フロントパーツ２及びリアパーツ３それぞれの筒孔全長に亘って、互いに共通する所定の内径及びネジピッチで形成され、
フロントパーツ２の筒孔前端２１Ｅ及びリアパーツ３の筒孔後端３２Ｅにはそれぞれ、チップ部品Ｔの後方端面Ｔ１１及びシャフト部品Ｓの前方端面Ｓ１１に当接する当接面が形成されてなり、
チップ部品Ｔの後方端面Ｔ１１とコアパーツ１の張出部１１の前面１１Ｆとでフロントパーツ２を挟圧すると共に、シャフト部品Ｓの前方端面Ｓ１１とコアパーツ１の張出部１１の後面１１Ｒとでリアパーツ３を挟圧した状態で、前記バレル部品１００（第一構成のバレル部品１００Ａ）がダーツ矢に組み構成されることを特徴とする。 (1) The barrel for darts according to the present invention is
A core part 1 comprising an integral timber having integrally a protruding portion 11 at a predetermined position in the length direction of the rod-like body 10 extending in a straight line to the uniaxial direction (axial direction),
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. Front parts 2 to get,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. Combine the rear parts 3 and
A barrel for darts, in which barrel parts 100 (100A, 100B,...) Are assembled into a darts arrow,
While the male screw portion T102 of the darts arrow tip component T is screwed into the front half of the first inner screw portion 20 from the front end 21E of the cylinder hole of the front part 2,
The male screw part S103 of the shaft part S of the darts arrow is screwed from the rear end 32E of the cylinder hole of the rear part 3 to the rear half of the second internal screw part 30 to form a darts arrow.
The first inner screw portion 20 and the second inner screw portion 30 are formed with a predetermined inner diameter and a screw pitch common to each other over the entire length of the cylindrical hole of each of the front part 2 and the rear part 3.
The front end 21E of the cylinder hole of the front part 2 and the rear end 32E of the cylinder hole of the rear part 3 are respectively formed with contact surfaces that contact the rear end surface T11 of the chip component T and the front end surface S11 of the shaft component S.
The front part 2 is clamped by the rear end surface T11 of the chip part T and the front surface 11F of the overhang part 11 of the core part 1, and the front end surface S11 of the shaft part S and the rear surface 11R of the overhang part 11 of the core part 1 are sandwiched. It is characterized in that the barrel part 100 (barrel part 100A having the first configuration) is assembled in a darts arrow while the rear part 3 is clamped.

上記構成であれば、フロントパーツ２、リアパーツ３それぞれの部品がコアパーツ１の前半部１０２、後半部１０３の各々に螺合しているため、ガタツキが生じにくく、また組合せの解除、つまり分解操作もしやすいものとなっている。組合せの解除つまり分解操作の際は、フロントパーツ２とリアパーツ３を相互に逆螺子方向へ回転させることで、フロントパーツ２又はリアパーツ３のいずれか一方のみがコアシャフト１から螺合解除して外れる。その後、フロントパーツ２又はリアパーツ３のうち残りの他方をコアシャフト１に対して逆螺子方向へ回転させることで、フロントパーツ２又はリアパーツ３のうち当該残りの他方がコアシャフト１から螺合解除して外れる。このようにして、組合せ状態を解除させるよう、容易に分解操作することができる。 With the above configuration, since the front part 2 and the rear part 3 are respectively screwed into the front half 102 and the rear half 103 of the core part 1, rattling is less likely to occur, and the combination is released, that is, disassembled. It is also easy to operate. When releasing the combination, that is, disassembling operation, by rotating the front part 2 and the rear part 3 in opposite screw directions, only one of the front part 2 and the rear part 3 is unscrewed from the core shaft 1. Come off. Then, the other of the front part 2 and the rear part 3 is rotated in the reverse screw direction with respect to the core shaft 1, so that the other of the front part 2 and the rear part 3 is screwed from the core shaft 1. Release and come off. In this way, the disassembly operation can be easily performed so as to release the combined state.

（２）コアパーツ１は、張出部１１の厚さの中央よりも前方または後方へずれた軸方向位置に重心を有し、
棒状体１０の前半部１０２を軸方向前方へ向けてフロントパーツ２の第一内螺子部２０に螺入させると共に、軸方向後方へ向けた棒状体１０の後半部１０３をリアパーツ３の第二内螺子部３０に螺入させることで、コアパーツ１が所定の前後の向きとなった第一構成のバレル部品１００Ａを構成し得る一方、
コアパーツ１の前後の向きを変えて、棒状体１０の前半部１０２を後方へ向けてリアパーツ３の第二内螺子部３０に螺入させると共に、棒状体１０の後半部を前方へ向けてフロントパーツ２の第二内螺子部２０に螺入させることで、コアパーツ１の前後の向きを変えた第二構成のバレル部品１００Ｂを構成し得るものであり、
前記第二構成のバレル部品１００Ｂは、前記第一構成のバレル部品１００Ａと比べて、軸方向の重心位置が異なることが好ましい。 (2) The core part 1 has a center of gravity at an axial position displaced forward or backward from the center of the thickness of the overhanging portion 11,
The front half portion 102 of the rod-shaped body 10 is screwed into the first internal screw portion 20 of the front part 2 toward the front in the axial direction, and the rear half portion 103 of the rod-shaped body 10 directed toward the rear side in the axial direction is moved to the second portion of the rear part 3. By being screwed into the inner screw portion 30, the core part 1 can constitute the barrel component 100A having the first configuration in which the core component 1 is oriented in a predetermined front-back direction.
By changing the front-back direction of the core part 1 and screwing the front half portion 102 of the rod-shaped body 10 rearward into the second internal screw portion 30 of the rear part 3, the rear half-portion of the rod-shaped body 10 is turned forward. By being screwed into the second inner screw portion 20 of the front part 2, the barrel part 100B having a second configuration in which the front-back direction of the core part 1 is changed can be configured.
It is preferable that the barrel component 100B of the second configuration has a different center of gravity position in the axial direction as compared with the barrel component 100A of the first configuration.

（３）コアパーツ１は、張出部１１を挟んだ前半部１０２からなる（第一延設部１０４を有する場合は、前半部１０２及び第一延設部１０４からなる）前方の棒状体と、後半部１０３からなる（第二延設部１０５を有する場合は、前半部１０２及び第二延設部１０５からなる）後方の棒状体とが、互いに異なる前後非対称の軸長からなり、
軸方向前方へ向けた棒状体１０の前半部１０２をフロントパーツ２の第一内螺子部２０に螺入させると共に、軸方向後方へ向けた棒状体１０の後半部１０３をリアパーツ３の第二内螺子部３０に螺入させることで、コアパーツ１が所定の前後の向きとなった第一構成のバレル部品１００Ａを構成し得る一方、
コアパーツ１の前後の向きを変えて、棒状体１０の前半部１０２を後方へ向けてリアパーツ３の第二内螺子部３０に螺入させると共に、棒状体１０の後半部を前方へ向けてフロントパーツ２の第二内螺子部２０に螺入させることで、コアパーツ１の前後の向きを変えた第二構成のバレル部品１００Ｂを構成し得るものであり、
第一構成又は第二構成のバレル部品１００Ａ，１００Ｂの内部であって、コアパーツ１の前端又は後端の少なくともいずれかの先部には、内部空間（前方の第一内部空間２００／後方の第二内部空間３００）が形成され、
前記第二構成のバレル部品１００Ｂは、前記第一構成のバレル部品１００Ａと比べて、前方と後方の内部空間の少なくともいずれかの大きさが異なることが好ましい。 (3) The core part 1 includes a front rod-shaped body that includes the front half 102 that sandwiches the overhanging portion 11 (if it has the first extension 104, the front half 102 and the first extension 104). , The rear rod-shaped body composed of the second half portion 103 (in the case of having the second extended portion 105, the front half portion 102 and the second extended portion 105) has mutually different front-back asymmetric axial lengths,
The front half portion 102 of the rod-shaped body 10 facing axially forward is screwed into the first internal screw portion 20 of the front part 2, and the rear half portion 103 of the rod-shaped body 10 facing axially rearward is inserted into the second part of the rear part 3. By being screwed into the inner screw portion 30, the core part 1 can constitute the barrel component 100A having the first configuration in which the core component 1 is oriented in a predetermined front-back direction.
By changing the front-back direction of the core part 1 and screwing the front half portion 102 of the rod-shaped body 10 rearward into the second internal screw portion 30 of the rear part 3, the rear half-portion of the rod-shaped body 10 is turned forward. By being screwed into the second inner screw portion 20 of the front part 2, the barrel part 100B having a second configuration in which the front-back direction of the core part 1 is changed can be configured.
Inside the barrel component 100A, 100B of the first configuration or the second configuration, at least one of the front end and the rear end of the core part 1 has an internal space (the first internal space 200 at the front/the rear at the rear). A second internal space 300) is formed,
It is preferable that the barrel component 100B having the second configuration is different from the barrel component 100A having the first configuration in at least one of the front and rear internal spaces.

（４）また本発明のダーツ用バレルの構成セットは、
一軸方向へ直線状に伸びた棒状体の長さ方向の中央部付近に、多角形外形又は円形外形の短柱体からなる張出部１１を一体的に有した一体製材からなるコアパーツ１と、
筒孔全長に第一内螺子部が形成された筒状体からなると共に筒孔後端から第一内螺子部の後半部にコアパーツの棒状体の前半部を螺入し得る一または複数のフロントパーツ２（２Ａ，２Ｂ，２Ｃ，・・・）と、
筒孔全長に第二内螺子部が形成された筒状体からなると共に筒孔前端から第二内螺子部の前半部にコアパーツの棒状体の後半部を螺入し得る一または複数のリアパーツ３（３Ａ，３Ｂ，３Ｃ，・・・）と、を備え、
これらを組み合わせることで２種類以上のダーツ用バレル１００，１００´を構成することができるセットであって、
前記フロントパーツ２又はリアパーツ３の少なくともいずれかが形状の異なる複数種類からなると共に、
当該複数種類のフロントパーツ２Ａ，２Ｂ，・・・又は複数種類のリアパーツ３Ａ，３Ｂ，・・・は、特定のパーツ毎に軸方向の長さ２ＡＬ，２ＢＬ，・・・／３ＡＬ，３ＢＬ，・・・が異なる複数種類からなり、
前記複数種類のフロントパーツ２Ａ，２Ｂ，・・・又は複数種類のリアパーツ３Ａ，３Ｂ，・・・の各種類をひとつずつ選択して組み合わせることで、
組合せの選択によってバレル長１００Ｌ又は／及び軸方向の重心位置の異なる、複数種類のバレル部品１００を構成することを特徴とする。 (4) Further, the constitution set of the barrel for darts of the present invention is
Near the center of the length direction of the elongated rod member linearly to uniaxial direction, a projecting portion 11 made of a short column of polygonal outline or circular outer core parts 1 consisting of integrated timber having integrally ,
One or a plurality of ones consisting of a tubular body having a first inner screw portion formed along the entire length of the tubular hole and capable of screwing the front half of the rod-shaped body of the core part into the latter half of the first inner screw portion from the rear end of the tubular hole. Front parts 2 (2A, 2B, 2C,...)
One or a plurality of rears that are formed of a tubular body having a second inner screw portion formed over the entire length of the tubular hole and that can be screwed into the front half of the second internal screw portion from the front end of the tubular hole to the latter half of the rod-shaped body of the core part. And parts 3 (3A, 3B, 3C,...)
A set that can be configured with two or more types of barrels for darts 100, 100' by combining these,
At least one of the front part 2 and the rear part 3 is made of a plurality of types having different shapes,
The plurality of types of front parts 2A, 2B,... Or the plurality of types of rear parts 3A, 3B,... Are axial lengths 2AL, 2BL,. ... consists of multiple different types,
By selecting and combining each of the plurality of types of front parts 2A, 2B,... Or the plurality of types of rear parts 3A, 3B,.
It is characterized in that a plurality of types of barrel parts 100 having different barrel lengths of 100 L and/or the center of gravity in the axial direction are configured by selecting a combination.

（５）或いは、本発明のダーツ用バレルの構成セットは、
一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部付近に張出部１１を一体的に有した一体製材からなるコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得るフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得るリアパーツ３と、
コアパーツ１の棒状体１０の周囲に挿通又は螺入し得る筒孔を有した短筒のリングからなる一または複数のリングパーツ４と、を備え、これらを組み合わせて、
バレル部品１００（第一構成のバレル部品１００Ａ）がダーツ矢に組み構成されるダーツ用バレルであって、
前記リングパーツ４は、フロントパーツ２の筒孔後端２２Ｅ及びリアパーツ３の筒孔前端３１Ｅのいずれの外径よりも小さい外径（最大外径）の円形又は多角形断面を有し、
１つ以上のリングパーツ４を、コアパーツ１の張出部１１の前面又は／及び後面に接するように選択的に組み合わせることで、
コアパーツ１の張出部１１の前面１１Ｆとフロントパーツ２の筒孔後端２２Ｅとの間、又は、コアパーツ１の張出部１１の後面１１Ｒとリアパーツ３の筒孔前端３１Ｅとの間に、一つ以上のリングパーツ４を挟設してバレル部品を構成することを特徴とする。 (5) Alternatively, the constitution set of the barrel for darts of the present invention is
A core part 1 comprising an integral timber having integrally a protruding portion 11 near the center of the length direction of the rod-like body 10 extending in a straight line to the uniaxial direction,
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. Front parts 2 to get,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. Rear parts 3
One or a plurality of ring parts 4 formed of a ring of a short cylinder having a cylindrical hole that can be inserted or screwed around the rod-shaped body 10 of the core part 1, and by combining these,
A barrel for darts, in which the barrel component 100 (the barrel component 100A having the first configuration) is assembled into a darts arrow,
The ring part 4 has a circular or polygonal cross section having an outer diameter (maximum outer diameter) smaller than the outer diameter of either the rear end 22E of the cylindrical hole of the front part 2 or the front end 31E of the cylindrical hole of the rear part 3.
By selectively combining one or more ring parts 4 so as to contact the front surface and/or the rear surface of the overhanging portion 11 of the core part 1,
Between the front surface 11F of the overhang 11 of the core part 1 and the rear end 22E of the cylinder hole of the front part 2, or between the rear surface 11R of the overhang 11 of the core part 1 and the front end 31E of the cylinder hole of the rear part 3. In addition, one or more ring parts 4 are sandwiched to form a barrel part.

上記いずれかのダーツ用バレルの他、或いは上記いずれかのダーツ用バレルに加えて、コアパーツ１は、張出部１１を挟んだ前半部１０２の棒状体と後半部１０３の棒状体にそれぞれ外螺子部が形成され、前半部１０２及び後半部１０３の棒状体の各先側に、部分錐台の柱体からなる延設部（第一延設部１０４，第二延設部１０５）が形成されてなり、
フロントパーツ２の筒孔前端２１Ｅから第一内螺子部２０の前半部にダーツ矢のチップ部品Ｔの雄螺子部Ｔ１０２が螺入されると共に、
リアパーツ３の筒孔後端３２Ｅから第二内螺子部３０の後半部にダーツ矢のシャフト部品Ｓの雄螺子部Ｓ１０３が螺入された、ダーツ矢の組み構成の状態で、
前記延設部（第一延設部１０４，第二延設部１０５）の少なくともいずれかの先側の錐台面は、対向するチップ部品Ｔの後方端面Ｔ１１、又はシャフト部品Ｓの前方端面Ｓ１１に面当接し、
この面当接した側の内螺子部には、前記面当接に基づく螺子反力が生じたまま、バレル部品１００（第一構成のバレル部品１００Ａ）がダーツ矢に組み構成されることが好ましい。 In addition to any one of the above darts barrels, or in addition to any of the above darts barrels, the core parts 1 are externally attached to the rod-shaped body of the front half 102 and the rod-shaped body of the rear half 103 sandwiching the overhang 11. A threaded portion is formed, and an extension portion (first extension portion 104, second extension portion 105) including a columnar body of a partial truncated cone is formed on each tip side of the rod-shaped body of the front half portion 102 and the rear half portion 103. Has been done
While the male screw portion T102 of the darts arrow tip component T is screwed into the front half of the first inner screw portion 20 from the front end 21E of the cylinder hole of the front part 2,
In a state in which the male screw portion S103 of the shaft component S of the darts arrow is screwed from the rear end 32E of the cylinder hole of the rear part 3 to the rear half of the second internal screw portion 30, the darts arrow is assembled.
The tip frustum surface of at least one of the extending portions (the first extending portion 104, the second extending portion 105) is formed on the rear end surface T11 of the chip component T or the front end surface S11 of the shaft component S facing each other. Face-to-face contact,
It is preferable that the barrel component 100 (the barrel component 100A having the first configuration) is assembled to the darts arrow while the screw reaction force based on the surface contact is generated in the inner screw portion on the surface contact side. ..

さらに上記いずれかのダーツ用バレルの他、或いは上記いずれかのダーツ用バレルに加えて、コアパーツ１の張出部１１は、フロントパーツ２の筒孔後端２２Ｅ及びリアパーツ３の筒孔前端３１Ｅのいずれの外径よりも小さい最大外径（軸を通る対角線のうち最大長さの外径を言う）の多角形からなる外形の軸断面を有した短柱体からなり、
当該短柱体の張出部１１の外周面を保持してフロントパーツ２又はリアパーツ３を逆螺子方向へ螺進させることで、
バレル部品１００を構成し或いはバレル部品１００を分解し得ることが好ましい。 Further, in addition to any one of the above-mentioned darts barrels, or in addition to any of the above-mentioned darts barrels, the overhanging portion 11 of the core part 1 has a cylindrical hole rear end 22E of the front part 2 and a cylindrical hole front end of the rear part 3. A short columnar body having an axial cross section of a polygonal shape having a maximum outer diameter smaller than any of the outer diameters of 31E (which means the outer diameter of the maximum length of the diagonal line passing through the axis),
By holding the outer peripheral surface of the overhanging portion 11 of the short column body and screwing the front part 2 or the rear part 3 in the reverse screw direction,
Preferably, the barrel piece 100 can be constructed or the barrel piece 100 can be disassembled.

さらに上記いずれかのダーツ用バレルの構成セットは、一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部付近に、多角形の短柱体からなる張出部１１を有したコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得るフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得るリアパーツ３と、
前記張出部１１の多角柱の外形断面に部分対応する形状の凹部片５１を有した保持パーツ５と、を備えたダーツ用バレルの構成セットであって、
保持パーツ５の凹部片５１を張出部１１の多角柱の辺部１１Ｓ及び／又はコーナー部１１Ｃに係止させることで、張出部１１の外周面を非回転に保持したまま、フロントパーツ２又はリアパーツ３を、組合せ方向（つまり正螺子方向）又は組合せ解除方向（つまり逆螺子方向）へ螺進させ得ることが好ましい。 Furthermore, in any one of the above-described set of barrels for darts, a core having a projecting portion 11 formed of a polygonal short column near the center in the length direction of a rod-shaped body 10 linearly extending in one axis direction. Part 1,
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. Front parts 2 to get,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. Rear parts 3
A configuration set of a barrel for darts, comprising: a holding part 5 having a recessed piece 51 having a shape that partially corresponds to the outer cross section of the polygonal column of the overhang portion 11.
By locking the recessed piece 51 of the holding part 5 to the side part 11S and/or the corner part 11C of the polygonal column of the overhang part 11, the front part 2 is held while the outer peripheral surface of the overhang part 11 is held non-rotatably. Alternatively, it is preferable that the rear part 3 can be screwed in the combination direction (that is, the normal screw direction) or the combination release direction (that is, the reverse screw direction).

さらに上記いずれかのダーツ用バレルの構成セットは、一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部付近に、多角形外形又は円形外形の短柱体からなる張出部１１を有したコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得るフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得るリアパーツ３と、を備え、
コアパーツ１、フロントパーツ２、又はリアパーツ３のいずれか一つ以上が複数種類からなると共に、
当該複数種類のコアパーツ１、複数種類のフロントパーツ２、又は複数種類のリアパーツ３は、種類毎に、パーツの外形又は長さが異なる複数種類からなるか、或いは、種類毎に質量が異なる複数種類の一体製材からなり、
前記複数種類のコアパーツ１、フロントパーツ２、又はリアパーツ３の種類をひとつずつ選択して組み合わせることで、
組合せの選択によって重心位置の異なる、複数種類のバレル部品１００を構成することが好ましい。 Furthermore, any one of the above-mentioned set of barrels for darts has an overhanging portion 11 formed of a short columnar body having a polygonal outer shape or a circular outer shape in the vicinity of the central portion in the longitudinal direction of the rod-shaped body 10 linearly extending in the uniaxial direction. A core part 1 having
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. Front parts 2 to get,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. With rear parts 3,
At least one of the core part 1, the front part 2, or the rear part 3 is made of a plurality of types,
The plurality of types of core parts 1, the plurality of types of front parts 2, or the plurality of types of rear parts 3 are made of a plurality of types having different parts outer shapes or lengths, or have different masses for each type. Composed of multiple types of integrated lumber,
By selecting and combining the plurality of types of core parts 1, front parts 2, or rear parts 3 one by one,
It is preferable to configure a plurality of types of barrel parts 100 having different center of gravity positions by selecting a combination.

例えば図１に示す後述の実施例１のダーツ用バレルの構成セットにおいて、図内左上の第一のフロントパーツ２Ａの外形は、パーツ長２ＡＬの後ろ約半部がストレート体２２ＳＴからなると共に、ストレート体２２ＳＴの前方に連なる先窄み筒体が、比較的広幅の溝部２３を等間隔に２つ有してなる。その一方、図内左下部の第二のフロントパーツ２Ｂの外形は、パーツ長２ＢＬの後ろ四半部がストレート体２２ＳＴからなると共に、ストレート体２２ＳＴの前方に連なる先窄み筒体が、比較的細幅の溝部２３を６つ有してなる。 For example, in the configuration set of the dart barrel of Example 1 to be described later shown in FIG. 1, the outer shape of the first front part 2A at the upper left of the figure is such that the rear half of the part length 2AL is a straight body 22ST and is straight. The tapered body connected to the front of the body 22ST has two relatively wide groove portions 23 at equal intervals. On the other hand, the outer shape of the second front part 2B at the lower left part of the figure is such that the rear quadrant of the part length 2BL is composed of the straight body 22ST, and the tapered cylindrical body connected in front of the straight body 22ST is relatively thin. It has six groove portions 23 having a width.

また、図内右上の第一のリアパーツ３Ａの外形は、パーツ長３ＡＬの前側の約半部がストレート体３１ＳＴからなると共に、残りの後半部の先窄み筒体が溝部２３を有さずになだらかな表面からなる一方、図内右下の第二のリアパーツ３Ｂの外形は、パーツ長３ＢＬの後半寄りの短部がストレート体３２ＳＴからなると共に、前半部がこれよりも大径で、かつ指掛かりとなる複数の鍔部３３を短円筒の段差部を介しながら段階的に径を変えながら軸方向へ連続形成してなる。 Further, in the outer shape of the first rear part 3A on the upper right side of the figure, about half of the front side of the part length 3AL is made of the straight body 31ST, and the remaining tapered part of the latter half does not have the groove portion 23. While the outer surface of the second rear part 3B in the lower right part of the figure has a gentle surface, the short part of the second half of the part length 3BL is a straight body 32ST and the front half has a larger diameter than this. In addition, a plurality of collar portions 33, which serve as finger rests, are continuously formed in the axial direction while gradually changing the diameter through the stepped portion of the short cylinder.

本発明は上記手段を講じており、中央に張出部１１を有したコアパーツを中心として、この張出部１１の前後にフロントパーツ、リアパーツを組み込む構造のため、各パーツの組み換え作業が容易であり、組み換え後の組合せ状態を容易に確認することができるダーツ用バレルを提供するものとなった。また、各パーツの組合せを変えるか組合せの際のパーツの向きを変えることで、バランスの調整作業や、調整時の前後重量バランスを確認することが比較的容易なバレルの構成セットを提供するものとなった。また組合せ状態では、フロントパーツ２が張出部１１とチップの間に挟まれ、リアパーツ３が張出部１１とシャフトの間に挟まれた状態となるため、ダーツ矢の使用によって螺子位置がずれたり、雌ネジと雄ネジのフランク間の遊びによるガタツキが生じたりすることのないものとなった。 The present invention takes the above-mentioned means, and has a structure in which front parts and rear parts are assembled before and after the core part having the overhanging part 11 at the center, so that the reassembling work of each part can be performed. The present invention provides a barrel for darts that is easy and can easily confirm the combined state after recombination. Also, by providing a barrel configuration set in which it is relatively easy to adjust the balance and confirm the front-rear weight balance during adjustment by changing the combination of each part or changing the direction of the parts when combining. Became. In the combined state, the front part 2 is sandwiched between the overhanging portion 11 and the tip, and the rear part 3 is sandwiched between the overhanging portion 11 and the shaft. There was no deviation or rattling due to play between the flanks of the female and male threads.

本発明の実施例１の形態に係るダーツ用バレルを含むダーツ矢の構成セットの組合せ構成を示す半断面概念図である。It is a semi-section conceptual diagram which shows the combination structure of the structure set of the darts arrow containing the barrel for darts which concerns on the form of Example 1 of this invention. 実施例１の形態に係るダーツ用バレルの組合せ構成を示す半断面図である。3 is a half cross-sectional view showing a combined configuration of dart barrels according to the exemplary embodiment 1. FIG. 実施例１の形態に係るダーツ用バレルの組合せ状態例を示す半断面図である。FIG. 5 is a half cross-sectional view showing an example of a combined state of the darts barrels according to the exemplary embodiment 1. 本発明の実施例２の形態に係るダーツ用バレルの第一の組合せ構成（ａ）と第一の組合せ状態例（ｂ）を示す半断面概念図である。It is a semi-section conceptual diagram which shows the 1st combination structure (a) and the 1st combination state example (b) of the barrel for darts which concerns on the form of Example 2 of this invention. 実施例２の形態に係るダーツ用バレルの第二の組合せ構成（ａ）と第二の組合せ状態例（ｂ）を示す半断面概念図である。It is a semi-section conceptual diagram which shows the 2nd combination structure (a) and the 2nd combination state example (b) of the barrel for darts which concerns on the form of Example 2. 図５（ｂ）のＡ−Ａ断面図である。It is an AA sectional view of Drawing 5 (b). 本発明の実施例３（ａ），実施例４（ｂ），実施例５（ｃ）の形態に係るダーツ用バレルのコアパーツ及び保持パーツの形態例を示す正面図である。It is a front view which shows the example of a form of the core parts and holding parts of the barrel for darts concerning the form of Example 3 (a), Example 4 (b), and Example 5 (c) of the present invention. 本発明の実施例６の形態に係るダーツ用バレルを含むダーツ矢の構成セットの組合せ構成（ａ）と第三、第四の組合せ状態例（ｂ）（ｃ）を示す半断面概念図である。It is a half cross-sectional conceptual diagram which shows the combination structure (a) of the structure set of the darts arrow including the barrel for darts which concerns on the form of Example 6 of this invention, and the 3rd, 4th combination state example (b) (c). .. 本発明の実施例７の形態に係るダーツ用バレルの組合せ構成を示す側面図である。It is a side view which shows the combination structure of the barrel for darts which concerns on the form of Example 7 of this invention.

以下、本発明に係るダーツ矢の構成セット、ないしダーツ用バレルの実施の形態を図面に基づいて説明する。但し以下において構成の名称に続けて記載する数字乃至アルファベットは、図面の理解のために便宜的に付した符号であり、これによって構成の概念ないし形状、構造を限定する趣旨ではない。 Hereinafter, an embodiment of a set of darts arrows or a barrel for darts according to the present invention will be described with reference to the drawings. However, in the following, the numbers or alphabets described after the name of the configuration are reference symbols for convenience of understanding the drawings, and are not intended to limit the concept, shape, or structure of the configuration.

（本発明のダーツ用バレル）
本発明のダーツ用バレルは、少なくとも、
一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部付近に張出部１１を有したコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得るフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得るリアパーツ３とを具備してなり、
少なくともこれら３つのパーツを組み合わせて一つのバレル部品１００に構成される。 (Barrel for darts of the present invention)
The barrel for darts of the present invention, at least,
A core part 1 having a projecting portion 11 near the center in the longitudinal direction of a rod-shaped body 10 linearly extending in the uniaxial direction;
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. Front parts 2 to get,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. It has rear parts 3 and
At least these three parts are combined to form one barrel part 100.

また、ダーツ用バレルの各パーツを組み合わせて構成されるバレル部品１００は、図２，３（実施例１）或いは図４（ｂ）や図５（ｂ）（実施例２）に示すように、フロントパーツ２の筒孔前端２１Ｅから第一内螺子部２０の前半部にダーツ矢のチップ部品Ｔの雄螺子部Ｔ１０２が螺入されると共に、
リアパーツ３の筒孔後端３２Ｅから第二内螺子部３０の後半部にダーツ矢のシャフト部品Ｓの雄螺子部Ｓ１０３が螺入されることで、ダーツ矢として組み構成される。 Further, the barrel part 100 configured by combining the respective parts of the darts barrel is, as shown in FIGS. 2 and 3 (Example 1), or FIG. 4(b) and FIG. 5(b) (Example 2), While the male screw portion T102 of the darts arrow tip component T is screwed into the front half of the first inner screw portion 20 from the front end 21E of the cylinder hole of the front part 2,
The male screw part S103 of the shaft part S of the darts arrow is screwed into the rear half of the second inner screw part 30 from the rear end 32E of the rear hole of the rear part 3 to form a darts arrow.

このうち主な特徴として、第一内螺子部２０及び第二内螺子部３０は、フロントパーツ２及びリアパーツ３それぞれの筒孔全長に亘って、互いに共通する所定の内径及びネジピッチで形成され、
フロントパーツ２の筒孔前端２１Ｅ及びリアパーツ３の筒孔後端３２Ｅにはそれぞれ、チップ部品Ｔの後方端面Ｔ１１及びシャフト部品Ｓの前方端面Ｓ１１に当接する当接面が形成されてなる。 Among these, as a main feature, the first internal screw portion 20 and the second internal screw portion 30 are formed with a predetermined inner diameter and a screw pitch common to each other over the entire length of the cylinder hole of the front part 2 and the rear part 3.
The front end 21E of the cylindrical hole of the front part 2 and the rear end 32E of the cylindrical hole of the rear part 3 are respectively formed with contact surfaces that contact the rear end surface T11 of the chip component T and the front end surface S11 of the shaft component S.

そして、本発明のバレル部品１００がダーツ矢に組み構成された状態では、チップ部品Ｔの後方端面Ｔ１１とコアパーツ１の張出部１１の前面１１Ｆとでフロントパーツ２を挟圧すると共に、シャフト部品Ｓの前方端面Ｓ１１とコアパーツ１の張出部１１の後面１１Ｒとでリアパーツ３を挟圧した状態となる。 When the barrel part 100 of the present invention is assembled into a darts arrow, the front part 2 is pinched by the rear end surface T11 of the chip part T and the front surface 11F of the overhanging part 11 of the core part 1, and the shaft part is The rear part 3 is sandwiched between the front end surface S11 of S and the rear surface 11R of the overhanging portion 11 of the core part 1.

また他の特徴として、図４に示す状態、図５に示す状態の２状態のように、コアパーツ１の前後の向きを変えてフロントパーツ２及びリアパーツ３と組み合わせることで、重量バランスの異なるダーツ用バレルを構成することができる。 Another feature is that the weight balance is different by combining the front part 2 and the rear part 3 by changing the front-back direction of the core part 1 like the two states shown in FIG. 4 and the state shown in FIG. A barrel for darts can be constructed.

例えば図４，５に示す実施例２のコアパーツ１は、張出部１１を挟んでこれよりも前方の前半部１０２を含む棒状体と、これよりも後方の後半部１０３を含む棒状体とが、互いに異なる前後非対称の軸長１０２Ｌ／１０３Ｌからなる。この実施例２のコアパーツ１は、前方の棒状体と後方の棒状体とが同じ金属材で一体的に構成されることで、軸方向の重心位置が、張出部１１の厚さ中央ではなく、長い方の軸長１０２Ｌ寄りとなっている。図４に示すように、軸方向前方へ向けた棒状体１０の前半部１０２をフロントパーツ２の第一内螺子部２０に螺入させると共に、軸方向後方へ向けた棒状体１０の後半部１０３をリアパーツ３の第二内螺子部３０に螺入させることで、コアパーツ１が所定の前後の向きとなった第一構成のバレル部品１００Ａを構成し得る。このバレル部品１００Ａの重心は張出部１１よりも前方の前半部１０２上にあり、比較的前重心のバレル部品となる。 For example, the core part 1 of the second embodiment shown in FIGS. 4 and 5 includes a rod-shaped body including a front half portion 102 in front of the overhanging portion 11 and a rod-shaped body including a rear half portion 103 in the rear thereof. , Which are different from each other in the front-rear asymmetric axial length 102L/103L. In the core part 1 of the second embodiment, the front rod-shaped body and the rear rod-shaped body are integrally formed of the same metal material, so that the center of gravity in the axial direction is at the center of the thickness of the overhang portion 11. However, the longer axial length is closer to 102L. As shown in FIG. 4, the front half portion 102 of the rod-shaped body 10 facing axially forward is screwed into the first internal screw portion 20 of the front part 2, and the rear half portion 103 of the rod-shaped body 10 facing axially rearward. By screwing into the second inner screw portion 30 of the rear part 3, the barrel part 100A having the first configuration in which the core part 1 is oriented in a predetermined front-back direction can be configured. The center of gravity of the barrel part 100A is located on the front half part 102 in front of the overhanging part 11, and the barrel part has a relatively front center of gravity.

また一方、この実施例２のコアパーツ１は、図５に示すように、コアパーツ１の前後の向きを変えて、棒状体１０の前半部１０２を後方へ向けてリアパーツ３の第二内螺子部３０に螺入させると共に、棒状体１０の後半部を前方へ向けてフロントパーツ２の第二内螺子部２０に螺入させることで、コアパーツ１の前後の向きを変えた第二構成のバレル部品１００Ｂを構成し得る。このバレル部品１００Ｂの重心は張出部１１よりも後方の前半部１０２上にあり、比較的後ろ重心のバレル部品となる。 On the other hand, in the core part 1 of the second embodiment, as shown in FIG. 5, the front and rear directions of the core part 1 are changed so that the front half portion 102 of the rod-shaped body 10 faces rearward and the second inner part of the rear part 3 is formed. A second configuration in which the front and rear directions of the core part 1 are changed by screwing the latter into the screw portion 30 and screwing the latter half of the rod-shaped body 10 forward into the second inner screw portion 20 of the front part 2. Of the barrel component 100B can be configured. The center of gravity of the barrel component 100B is on the front half 102 behind the overhanging portion 11, and the barrel component has a relatively rear center of gravity.

また、図４、図５に示すように、実施例２のバレル部品１００の内部であって、コアパーツ１の前端又は後端の各先部には、第一内部空間２００又は第二内部空間３００のいずれかが形成される。第二構成のバレル部品１００Ｂは、前記第一構成のバレル部品１００Ａと比べて、前方と後方の内部空間の少なくともいずれかの大きさが異なる。 In addition, as shown in FIGS. 4 and 5, inside the barrel component 100 of the second embodiment, the first internal space 200 or the second internal space is provided at each front end of the front end or the rear end of the core part 1. Any one of 300 is formed. The barrel component 100B of the second configuration is different from the barrel component 100A of the first configuration in at least one of the front and rear internal spaces.

第一内部空間２００又は第二内部空間３００は、選択するパーツ各部の長さや螺合長によって決定される。但し、選択するパーツ各部の長さや螺合長によって、図４や図５に示すように、コアパーツ１の前端又は後端の少なくともいずれかの面が、対向するチップ部品Ｔの後方端面Ｔ１１、又はシャフト部品Ｓの前方端面Ｓ１１に面当接する場合がある。この場合は、第一内部空間２００又は第二内部空間３００のいずれか一方のみが形成され、他方は形成されない。 The first internal space 200 or the second internal space 300 is determined by the length and screwing length of each part to be selected. However, depending on the length and screwing length of each part to be selected, as shown in FIGS. 4 and 5, at least one of the front end and the rear end of the core part 1 has a rear end face T11 of the facing chip component T, Alternatively, the front end surface S11 of the shaft component S may come into surface contact. In this case, only one of the first internal space 200 and the second internal space 300 is formed, and the other is not formed.

（本発明のダーツ矢の構成セット）
また本発明のダーツ矢の構成セットは、図１（実施例１）に示すように、少なくとも、
一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部付近に、多角形の短柱体からなる張出部１１を有した１種類又は複数種類のコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得る１種類又は複数種類のフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得る１種類又は複数種類のリアパーツ３と、を備えてなり、このうち複数種類のコアパーツ１、フロントパーツ２、又はリアパーツ３の種類をひとつずつ選択して組み合わせることで、組合せの相違による、複数種類のバレル部品を構成することができる。 (Structure set of the darts arrow of the present invention)
The configuration set of the darts arrow of the present invention is, as shown in FIG. 1 (Example 1), at least,
One or a plurality of types of core parts 1 having an overhanging portion 11 formed of a polygonal short column near the central portion in the length direction of the rod-shaped body 10 linearly extending in the uniaxial direction,
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. One or more types of front parts 2 to be obtained,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. One or a plurality of types of rear parts 3 are provided, and among these, a plurality of types of core parts 1, front parts 2, or rear parts 3 are selected one by one and combined, so that due to the difference in combination, Multiple types of barrel components can be constructed.

例えば図１に示すフロントパーツ２は、第一フロントパーツ２Ａと第二フロントパーツ２Ｂの２種類から選択可能であり、これらはディック２３の形成数及びストレート部２２ＳＴの長さが異なっている。また図１に示すリアパーツ３は、第一リアパーツ３Ａと第二リアパーツ３Ｂの２種類から選択可能であり、これらはリブ３３の形成の有無、ストレート部３２ＳＴの長さ、及びパーツ長３ＡＬ，３ＢＬがそれぞれ異なっている。本実施例では、一つのコアパーツ１に対して複数種類のなかから一種類ずつ選択したフロントパーツ２、リアパーツ３を組み合わせて、図２に示すような一本のダーツ用バレルを構成する。 For example, the front part 2 shown in FIG. 1 can be selected from two types, a first front part 2A and a second front part 2B, which differ in the number of formed dicks 23 and the length of the straight portion 22ST. The rear part 3 shown in FIG. 1 can be selected from two types, a first rear part 3A and a second rear part 3B. These are the presence or absence of the rib 33, the length of the straight portion 32ST, and the part length 3AL. , 3BL are different from each other. In this embodiment, one core part 1 is combined with a front part 2 and a rear part 3, which are selected from a plurality of types, to form one dart barrel as shown in FIG.

また他に例えば、実施例１（図１〜３）の第一のコアパーツ１と、実施例２（図４，５）の第二のコアパーツ１とを備え、第一のコアパーツ１と第二のコアパーツ１のいずれかを選択式に組み合わせ可能なダーツ用バレルの構成セットとしてもよい。共通するフロントパーツ２、リアパーツ３を選択した場合でも、第一のコアパーツ１を使用する場合と、第二のコアパーツ１を正逆の前後方向で使用する各場合とで、第一内部空間及び第二内部空間が異なり、組み合わせ種類や組合せの向きに応じて重量バランスを調整することができる。 In addition, for example, the first core part 1 according to the first embodiment (FIGS. 1 to 3) and the second core part 1 according to the second embodiment (FIGS. 4 and 5) are provided. A configuration set of a barrel for darts in which any of the second core parts 1 can be selectively combined may be used. Even when the common front part 2 and rear part 3 are selected, the first internal part is used when the first core part 1 is used and when the second core part 1 is used in the forward and backward directions. The space and the second internal space are different, and the weight balance can be adjusted according to the combination type and the direction of the combination.

以下、実施例の各構成について詳述する。 Hereinafter, each configuration of the embodiment will be described in detail.

（コアパーツ１）
コアパーツ１は、張出部１１を挟んだ前半部１０２の棒状体と後半部１０３の棒状体にそれぞれ外螺子部が形成され、前半部１０２及び後半部１０３の棒状体の各先側に、部分錐台の柱体からなる延設部（第一延設部１０４，第二延設部１０５）が形成されてなる。 (Core parts 1)
In the core part 1, outer screw portions are formed on the rod-shaped body of the front half portion 102 and the rod-shaped body of the rear half portion 103 sandwiching the overhanging portion 11, respectively. An extension portion (first extension portion 104, second extension portion 105) formed of a column of a partial truncated cone is formed.

（張出部１１）
コアパーツ１は、一軸方向へ直線状に伸びた棒状体１０の長さ方向（軸方向）の中央部付近又はその前後いずれかへずれた位置に、棒状体よりも大径の短柱体からなる張出部１１を有する。コアパーツ１の短柱体は、フロントパーツ２の筒孔後端２２Ｅ及びリアパーツ３の筒孔前端３１Ｅのいずれの外径よりも小さい最大外径（軸を通る対角線のうち最大長さの外径を言う）の多角形からなる外形の軸断面を有する。この張出部１１は実施例１，２のような同径の円形断面（図６）からなるものでもよいし、実施例３のような同径の１２角形断面（図７ａ）、実施例４のような同径の８角形断面（図７ｂ）、実施例５のような同径の隅丸四角形断面（図７ｃ）からなるものでもよい。或いは他に、軸方向に代表径の異なる円錐台又は角錐台からなるものとすることもできる。短柱体の張出部１１の外周面を保持してフロントパーツ２又はリアパーツ３を螺進させることで、バレル部品１００を容易に組み合わせて構成し或いはバレル部品１００を容易に分解し得る。 (Overhang part 11)
The core part 1 is formed from a short columnar body having a diameter larger than that of the rod-shaped body at a position displaced near the central portion in the length direction (axial direction) of the rod-shaped body 10 linearly extending in the uniaxial direction or before or after the central portion. The overhanging portion 11 is formed. The short columnar body of the core part 1 has a maximum outer diameter smaller than the outer diameter of either the rear end 22E of the cylindrical hole of the front part 2 or the front end 31E of the cylindrical hole of the rear part 3 (the outermost part of the maximum length of the diagonal line passing through the axis). It has an axial cross section of an outer shape consisting of a polygon. The projecting portion 11 may have a circular cross section (FIG. 6) having the same diameter as in the first and second embodiments, or a dodecagonal cross section (FIG. 7a) having the same diameter as in the third embodiment, and the fourth embodiment. It may have an octagonal cross section with the same diameter (Fig. 7b) and a rounded corner square cross section with the same diameter as in Example 5 (Fig. 7c). Alternatively, it may be a truncated cone or a truncated pyramid having different representative diameters in the axial direction. By holding the outer peripheral surface of the overhanging portion 11 of the short column and screwing the front part 2 or the rear part 3, the barrel parts 100 can be easily combined or configured, or the barrel part 100 can be easily disassembled.

（フロントパーツ２）
フロントパーツ２は、筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得る。第一内螺子部２０は、フロントパーツ２全体を貫通する筒孔の全長又は両端を除く大部分の長さに亘って、一定の内径及びネジピッチで形成される。この内径及びネジピッチは、コアパーツ１の螺子部だけでなく、チップ部品Ｔの螺子部Ｔ１０２とも共通する。また、リアパーツ３の第二内螺子部３０とも共通する。さらにフロントパーツ２の筒孔前端２１Ｅには、チップ部品Ｔの基部周囲の後方端面Ｔ１１に当接する当接面が形成されてなる。 (Front parts 2)
The front part 2 is composed of a tubular body in which the first internal screw portion 20 is formed over the entire length of the tubular hole, and from the rear end 22E of the tubular hole to the rear half of the first internal screw portion 20 the front half of the rod-shaped body of the core part 1. 102 may be screwed. The first inner screw portion 20 is formed with a constant inner diameter and a constant screw pitch over the entire length of a cylindrical hole that penetrates the entire front part 2 or most of the length except both ends. The inner diameter and the screw pitch are common not only to the screw part of the core part 1 but also to the screw part T102 of the chip component T. It is also common to the second inner screw portion 30 of the rear part 3. Furthermore, the front end 21E of the cylindrical hole of the front part 2 is formed with a contact surface that contacts the rear end surface T11 around the base of the chip component T.

そして、本発明のバレル部品１００がダーツ矢に組み構成された状態では、フロントパーツ２内の前部にチップ部品Ｔの螺子部Ｔ１０２を螺入させると共にフロントパーツ２内の後部にコアシャフト１の前方の棒状体を螺入させ、チップ部品Ｔの後方端面Ｔ１１とコアパーツ１の張出部１１の前面１１Ｆとでフロントパーツ２を挟圧した状態となる。 When the barrel part 100 of the present invention is assembled into a darts arrow, the screw part T102 of the chip part T is screwed into the front part of the front part 2 and the core shaft 1 is inserted into the rear part of the front part 2. The front rod 2 is screwed in, and the front part 2 is pressed between the rear end face T11 of the chip part T and the front face 11F of the overhanging part 11 of the core part 1.

（リアパーツ３）
リアパーツ３は、筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得る。第二内螺子部３０は、リアパーツ３全体を貫通する筒孔の全長又は後端を除く後部の過半長に亘って、一定の内径及びネジピッチで形成される。このない径及びネジピッチは、コアパーツ１の螺子部だけでなく、シャフト部品Ｓの螺子部Ｓ１０３とも共通する。また、フロントパーツ２の第一内螺子部２０とも共通する。さらにリアパーツ３の筒孔後端３２Ｅにはそれぞれ、シャフト部品Ｓの螺子部Ｓ１０３の基部周囲の前方端面Ｓ１１に当接する当接面が形成されてなる。 (Rear parts 3)
The rear part 3 is formed of a tubular body in which the second inner screw portion 30 is formed over the entire length of the tubular hole, and the rear part 103 of the rod-shaped body of the core part 1 is provided from the front end 31E of the tubular hole to the front half of the second internal screw portion 30. Can be screwed in. The second inner screw portion 30 is formed with a constant inner diameter and a constant screw pitch over the entire length of the cylindrical hole that penetrates the entire rear part 3 or the majority of the rear portion excluding the rear end. This non-existing diameter and screw pitch are common not only to the screw part of the core part 1 but also to the screw part S103 of the shaft component S. It is also common to the first internal screw portion 20 of the front part 2. Further, the rear end 32E of the cylindrical hole of the rear part 3 is formed with an abutting surface that comes into contact with the front end surface S11 around the base of the screw portion S103 of the shaft component S.

（ダーツ矢の組み構成）
そして、フロントパーツ２の筒孔前端２１Ｅから第一内螺子部２０の前半部にダーツ矢のチップ部品Ｔの雄螺子部Ｔ１０２が螺入されると共に、
リアパーツ３の筒孔後端３２Ｅから第二内螺子部３０の後半部にダーツ矢のシャフト部品Ｓの雄螺子部Ｓ１０３が螺入されることで、ダーツ矢が組み構成された状態となる。本発明のバレル部品１００がダーツ矢に組み構成された状態では、チップ部品Ｔの後方端面Ｔ１１とコアパーツ１の張出部１１の前面１１Ｆとでフロントパーツ２を挟圧すると共に、シャフト部品Ｓの前方端面Ｓ１１とコアパーツ１の張出部１１の後面１１Ｒとでリアパーツ３を挟圧した状態となる。 (Composition of darts arrows)
Then, the male screw portion T102 of the darts arrow tip component T is screwed into the front half of the first inner screw portion 20 from the front end 21E of the cylindrical hole of the front part 2.
The male screw part S103 of the shaft part S of the darts arrow is screwed into the rear half of the second inner screw part 30 from the rear end 32E of the rear hole of the rear part 3 so that the darts arrow is assembled. In a state where the barrel part 100 of the present invention is assembled into a darts arrow, the front part 2 is pinched by the rear end surface T11 of the chip part T and the front surface 11F of the overhang part 11 of the core part 1, and the shaft part S The rear part 3 is sandwiched between the front end surface S11 and the rear surface 11R of the overhanging portion 11 of the core part 1.

（構成セットのバリエーション例）
（実施例１の構成セット）
図１ないし図３に、本発明の実施例１の形態に係るダーツ用バレルの構成セットの組合せ構成、ダーツ用バレルの組合せ状態例、ダーツ矢の組合せ状態例を示す。 (Variation example of configuration set)
(Structure set of Example 1)
1 to 3 show a combination configuration of a configuration set of a dart barrel, a combination state example of a dart barrel, and a combination state example of a dart arrow according to the embodiment of the present invention.

図１に示す実施例１のダーツ矢の構成セットは、一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部付近に、多角形外形又は円形外形の短柱体からなる張出部１１を有した、１種類のコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得る、２種類のフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得る、２種類のリアパーツ３と、を備えてなる。
当該複数種類のコアパーツ１、複数種類のフロントパーツ２、又は複数種類のリアパーツ３は、種類毎に螺子部（内螺子部又は外螺子部）の軸長が異なる複数種類からなっている。
前記複数種類のコアパーツ１、フロントパーツ２、又はリアパーツ３の種類をひとつずつ選択して組み合わせることで、組合せの選択によってバレル長の異なる、複数種類のバレル部品を構成することができる。 The configuration set of the darts arrow of the first embodiment shown in FIG. 1 is a projecting member composed of a polygonal outer shape or a circular outer shape in the vicinity of the center in the longitudinal direction of a rod-shaped body 10 linearly extending in one axis direction. One kind of core part 1 having a part 11,
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. To get two kinds of front parts 2,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. It is equipped with two types of rear parts 3.
The plurality of types of core parts 1, the plurality of types of front parts 2, or the plurality of types of rear parts 3 are made of a plurality of types in which the axial length of the screw portion (inner screw portion or outer screw portion) is different for each type.
By selecting and combining the plurality of types of core parts 1, front parts 2, or rear parts 3 one by one, it is possible to configure a plurality of types of barrel parts having different barrel lengths by selecting the combination.

例えば図１に示すフロントパーツ２は、第一フロントパーツ２Ａと第二フロントパーツ２Ｂの２種類から選択可能であり、これらはディック２３の形成数及びストレート部２２ＳＴの長さが異なっている。また図１に示すリアパーツ３は、第一リアパーツ３Ａと第二リアパーツ３Ｂの２種類から選択可能であり、これらはリブ３３の形成の有無、ストレート部３２ＳＴの長さ、及びパーツ長３ＡＬ，３ＢＬがそれぞれ異なっている。本実施例では、一つのコアパーツ１に対して複数種類のなかから一種類ずつ選択したフロントパーツ２、リアパーツ３を組み合わせて、図２に示すような一本のダーツ用バレルを構成する。 For example, the front part 2 shown in FIG. 1 can be selected from two types, a first front part 2A and a second front part 2B, which differ in the number of formed dicks 23 and the length of the straight portion 22ST. The rear part 3 shown in FIG. 1 can be selected from two types, a first rear part 3A and a second rear part 3B. These are the presence or absence of the rib 33, the length of the straight portion 32ST, and the part length 3AL. , 3BL are different from each other. In this embodiment, one core part 1 is combined with a front part 2 and a rear part 3, which are selected from a plurality of types, to form one dart barrel as shown in FIG.

具体的には、図１に示す後述の実施例１のダーツ用バレルの構成セットにおいて、図内左上の第一のフロントパーツ２Ａの外形は、パーツ長２ＡＬの後ろ約半部がストレート体２２ＳＴからなると共に、ストレート体２２ＳＴの前方に連なる先窄み筒体が、比較的広幅の溝部２３を等間隔に２つ有してなる。その一方、図内左下部の第二のフロントパーツ２Ｂの外形は、パーツ長２ＢＬの後ろ四半部がストレート体２２ＳＴからなると共に、ストレート体２２ＳＴの前方に連なる先窄み筒体が、比較的細幅の溝部２３を６つ有してなる。 Specifically, in the configuration set of the dart barrel of Example 1 to be described later shown in FIG. 1, the outer shape of the first front part 2A at the upper left of the figure is that the rear half of the part length 2AL is from the straight body 22ST. In addition, the tapered body connected to the front of the straight body 22ST has two relatively wide groove portions 23 at equal intervals. On the other hand, the outer shape of the second front part 2B at the lower left part of the figure is such that the rear quadrant of the part length 2BL is composed of the straight body 22ST, and the tapered cylindrical body connected in front of the straight body 22ST is relatively thin. It has six groove portions 23 having a width.

また、図内右上の第一のリアパーツ３Ａの外形は、パーツ長３ＡＬの前側の約半部がストレート体３１ＳＴからなると共に、残りの後半部の先窄み筒体が溝部２３を有さずになだらかな表面からなる一方、図内右下の第二のリアパーツ３Ｂの外形は、パーツ長３ＢＬの後半寄りの短部がストレート体３２ＳＴからなると共に、前半部がこれよりも大径で、かつ指掛かりとなる複数の鍔部３３を短円筒の段差部を介しながら段階的に径を変えながら軸方向へ連続形成してなる。 Further, in the outer shape of the first rear part 3A on the upper right side of the figure, about half of the front side of the part length 3AL is made of the straight body 31ST, and the remaining tapered part of the latter half does not have the groove portion 23. While the outer surface of the second rear part 3B in the lower right part of the figure is composed of a gentle surface, the short part of the second part of the part length 3BL near the latter half is a straight body 32ST, and the front half is larger in diameter than this. In addition, a plurality of collar portions 33, which serve as finger rests, are continuously formed in the axial direction while gradually changing the diameter through the stepped portion of the short cylinder.

（実施例２の構成セット）
図４ないし図６に、本発明の実施例２の形態に係るダーツ用バレルの第一の組合せ構成（ａ）と第一の組合せ状態例（ｂ）、第二の組合せ構成（ａ）と第二の組合せ状態例（ｂ）を示す。 (Structure set of Example 2)
4 to 6 show a first combination configuration (a) and a first combination state example (b) of the barrel for darts according to the embodiment of the present invention, a second combination configuration (a) and a second combination configuration (a). An example (b) of the second combination state is shown.

特に、図５に示す実施例２のダーツ用バレルの構成セットは、一軸方向へ直線状に伸びた棒状体１０の長さ方向の中央部からずれた位置に、多角形の短柱体からなる張出部１１を有したコアパーツ１と、
筒孔全長に第一内螺子部２０が形成された筒状体からなると共に筒孔後端２２Ｅから第一内螺子部２０の後半部にコアパーツ１の棒状体の前半部１０２を螺入し得るフロントパーツ２と、
筒孔全長に第二内螺子部３０が形成された筒状体からなると共に筒孔前端３１Ｅから第二内螺子部３０の前半部にコアパーツ１の棒状体の後半部１０３を螺入し得るリアパーツ３と、
前記張出部１１の多角柱の外形断面に部分対応する形状の凹部片５１を有した保持パーツ５と、を備える。 In particular, the configuration set of the barrel for darts of Example 2 shown in FIG. 5 is composed of polygonal short columns at a position displaced from the central portion in the length direction of the rod-shaped body 10 linearly extending in the uniaxial direction. A core part 1 having an overhanging portion 11,
The first inner screw portion 20 is formed over the entire length of the cylindrical hole, and the front half 102 of the rod-shaped body of the core part 1 is screwed into the rear half of the first inner screw 20 from the rear end 22E of the cylindrical hole. Front parts 2 to get,
The second inner screw portion 30 is formed in the entire length of the cylindrical hole, and the second half 103 of the rod-shaped body of the core part 1 can be screwed into the front half of the second inner screw portion 30 from the cylindrical hole front end 31E. Rear parts 3
And a holding part 5 having a recessed piece 51 having a shape that partially corresponds to the external cross section of the polygonal column of the projecting portion 11.

（バレル部品の構成例）
実施例２の第一構成では、図４に示すように、前方を向いた第一延設部１０４の先側の錐台面は、対向するチップ部品Ｔの後方端面Ｔ１１に面当接し、この面当接した側の内螺子部には、前記面当接に基づく螺子反力が生じたまま、第一構成のバレル部品１００Ａがダーツ矢に組み構成される。また、後方を向いた第二延設部１０５の先側の錐台面は、対向するシャフト部品Ｔの後方端面Ｔ１１と離間して、第二内部空間３００が形成される。この第一構成のバレル部品１００Ａは前方側にて螺子反力の軸力がかかると共に後方側に内部空間３００が形成されることで、比較的前重心のバレル部品に調整される。 (Structure example of barrel parts)
In the first configuration of the second embodiment, as shown in FIG. 4, the frustum surface on the front side of the first extending portion 104 facing forward contacts the rear end surface T11 of the facing chip component T, and this surface The barrel component 100A having the first configuration is assembled to the darts arrow while the screw reaction force based on the surface contact is generated in the inner screw portion on the contacting side. In addition, the frustum surface on the front side of the second extending portion 105 facing rearward is separated from the rear end surface T11 of the shaft component T facing the second inner space 300. The barrel component 100A having the first configuration is adjusted to a barrel component having a relatively front center of gravity by applying an axial force of a screw reaction force on the front side and forming an internal space 300 on the rear side.

実施例２の第二構成では、図５に示すように、後方を向いた第一延設部１０４の先側の錐台面は、対向するシャフト部品Ｓの前方端面Ｓ１２に面当接し、この面当接した側の内螺子部には、前記面当接に基づく螺子反力が生じたまま、第二構成のバレル部品１００Ｂがダーツ矢に組み構成される。また、前方を向いた第一延設部１０５の先側の錐台面は、対向するシャフト部品Ｔの後方端面Ｔ１１と離間して、前方の第一内部空間２００が形成される。この第二構成のバレル部品１００Ｂは後方側にて螺子反力の軸力がかかると共に前方側に内部空間２００が形成されることで、比較的後ろ重心のバレル部品に調整される。 In the second configuration of the second embodiment, as shown in FIG. 5, the frustum surface on the front side of the first extending portion 104 facing rearward comes into surface contact with the front end surface S12 of the shaft component S that opposes the surface. The barrel component 100B of the second configuration is assembled to the darts arrow while the screw reaction force based on the surface contact is generated in the inner screw portion on the contacting side. Further, the frustum surface on the front side of the first extending portion 105 facing forward is separated from the rear end surface T11 of the shaft component T facing to form a front first internal space 200. The barrel component 100B having the second configuration is adjusted to a barrel component having a relatively rear center of gravity by applying an axial force of a screw reaction force on the rear side and forming the internal space 200 on the front side.

また他の特徴として、図４に示す状態、図５に示す状態の２状態のように、コアパーツ１の前後の向きを変えてフロントパーツ２及びリアパーツ３と組み合わせることで、重量バランスの異なるダーツ用バレルを構成することができる。 Another feature is that the weight balance is different by combining the front part 2 and the rear part 3 by changing the front-back direction of the core part 1 as in the two states shown in FIG. 4 and FIG. A barrel for darts can be constructed.

例えば図４，５に示す実施例２のコアパーツ１は、張出部１１を挟んでこれよりも前方の前半部１０２を含む棒状体と、これよりも後方の後半部１０３を含む棒状体とが、互いに異なる前後非対称の軸長１０２Ｌ／１０３Ｌからなる。この実施例２のコアパーツ１は、前方の棒状体と後方の棒状体とが同じ金属材で一体的に構成されることで、軸方向の重心位置が、張出部１１の厚さ中央ではなく、長い方の軸長１０２Ｌ寄りとなっている。図４に示すように、軸方向前方へ向けた棒状体１０の前半部１０２をフロントパーツ２の第一内螺子部２０に螺入させると共に、軸方向後方へ向けた棒状体１０の後半部１０３をリアパーツ３の第二内螺子部３０に螺入させることで、コアパーツ１が所定の前後の向きとなった第一構成のバレル部品１００Ａを構成し得る。このバレル部品１００Ａの重心は張出部１１よりも前方の前半部１０２上にあり、比較的前重心のバレル部品となる。 For example, the core part 1 of the second embodiment shown in FIGS. 4 and 5 includes a rod-shaped body including a front half portion 102 in front of the overhanging portion 11 and a rod-shaped body including a rear half portion 103 in the rear thereof. , Which are different from each other in the front-rear asymmetric axial length 102L/103L. In the core part 1 of the second embodiment, the front rod-shaped body and the rear rod-shaped body are integrally formed of the same metal material, so that the center of gravity in the axial direction is at the center of the thickness of the overhang portion 11. However, the longer axial length is closer to 102L. As shown in FIG. 4, the front half portion 102 of the rod-shaped body 10 facing axially forward is screwed into the first internal screw portion 20 of the front part 2, and the rear half portion 103 of the rod-shaped body 10 facing axially rearward. By screwing into the second inner screw portion 30 of the rear part 3, the barrel part 100A having the first configuration in which the core part 1 is oriented in a predetermined front-back direction can be configured. The center of gravity of the barrel part 100A is located on the front half part 102 in front of the overhanging part 11, and the barrel part has a relatively front center of gravity.

また一方、この実施例２のコアパーツ１は、図５に示すように、コアパーツ１の前後の向きを変えて、棒状体１０の前半部１０２を後方へ向けてリアパーツ３の第二内螺子部３０に螺入させると共に、棒状体１０の後半部を前方へ向けてフロントパーツ２の第二内螺子部２０に螺入させることで、コアパーツ１の前後の向きを変えた第二構成のバレル部品１００Ｂを構成し得る。このバレル部品１００Ｂの重心は張出部１１よりも後方の前半部１０２上にあり、比較的後ろ重心のバレル部品となる。 On the other hand, in the core part 1 of the second embodiment, as shown in FIG. 5, the front and rear directions of the core part 1 are changed so that the front half portion 102 of the rod-shaped body 10 faces rearward and the second inner part of the rear part 3 is formed. A second configuration in which the front and rear directions of the core part 1 are changed by screwing the latter into the screw portion 30 and screwing the latter half of the rod-shaped body 10 forward into the second inner screw portion 20 of the front part 2. Of the barrel component 100B can be configured. The center of gravity of the barrel component 100B is on the front half 102 behind the overhanging portion 11, and the barrel component has a relatively rear center of gravity.

また、図４、図５に示すように、実施例２のバレル部品１００の内部であって、コアパーツ１の前端又は後端の各先部には、第一内部空間２００又は第二内部空間３００のいずれかが形成される。第二構成のバレル部品１００Ｂは、前記第一構成のバレル部品１００Ａと比べて、前方と後方の内部空間の少なくともいずれかの大きさが異なる。 In addition, as shown in FIGS. 4 and 5, inside the barrel component 100 of the second embodiment, the first internal space 200 or the second internal space is provided at each front end of the front end or the rear end of the core part 1. Any one of 300 is formed. The barrel component 100B of the second configuration is different from the barrel component 100A of the first configuration in at least one of the front and rear internal spaces.

第一内部空間２００又は第二内部空間３００は、選択するパーツ各部の長さや螺合長によって決定される。但し、選択するパーツ各部の長さや螺合長によって、図４や図５に示すように、コアパーツ１の前端又は後端の少なくともいずれかの面が、対向するチップ部品Ｔの後方端面Ｔ１１、又はシャフト部品Ｓの前方端面Ｓ１１に面当接する場合がある。この場合は、第一内部空間２００又は第二内部空間３００のいずれか一方のみが形成され、他方は形成されない。 The first internal space 200 or the second internal space 300 is determined by the length and screwing length of each part to be selected. However, depending on the length and screwing length of each part to be selected, as shown in FIGS. 4 and 5, at least one of the front end and the rear end of the core part 1 has a rear end face T11 of the facing chip component T, Alternatively, the front end surface S11 of the shaft component S may come into surface contact. In this case, only one of the first internal space 200 and the second internal space 300 is formed, and the other is not formed.

例えば、図４（ｂ）に示すダーツ矢の組み構成の状態で、前方の第一延設部１０４の先側の錐台先端面１０２Ｅは、対向するチップ部品Ｔの後方先端面Ｔ１２に面当接し、この面当接した側の内螺子部には、前記面当接に基づく螺子反力が生じたまま、バレル部品１００（第一構成のバレル部品１００Ａ）がダーツ矢に組み構成される。またこの状態では、後方の第二延設部１０５の先側の錐台面１０３Ｅは、対向するシャフト部品Ｓの前方先端面Ｓ１２と面当接することなく、後方の第二内部空間３００が形成される（図４ｂ）。 For example, in the assembled configuration of the darts arrows shown in FIG. 4B, the front frustum tip surface 102E of the front first extension portion 104 is in contact with the rear tip surface T12 of the facing chip component T. The barrel component 100 (the barrel component 100A having the first configuration) is assembled to the darts arrow while the screw reaction force based on the surface contact is generated in the inner screw portion that is in contact with and is in surface contact. Further, in this state, the frustum surface 103E on the front side of the second extension portion 105 on the rear side does not make surface contact with the front end surface S12 of the facing shaft component S, and the second inner space 300 on the rear side is formed. (Fig. 4b).

一方、例えば、図５（ｂ）に示すダーツ矢の組み構成の状態で、後方の第一延設部１０４の先側の錐台先端面１０２Ｅは、対向するシャフト部品Ｓの前方先端面Ｓ１２に面当接し、この面当接した側の内螺子部には、前記面当接に基づく螺子反力が生じたまま、バレル部品１００（第二構成のバレル部品１００Ｂ）がダーツ矢に組み構成される。またこの状態では、前方の第二延設部１０５の先側の錐台面１０３Ｅは、対向するシャフト部品Ｓの前方先端面Ｓ１２と面当接することなく、前方の第一内部空間２００が形成される（図５ｂ） On the other hand, for example, in the assembled state of the darts arrows shown in FIG. 5B, the front frustum tip surface 102E of the rear first extension portion 104 is formed on the front tip surface S12 of the opposing shaft component S. The barrel component 100 (the barrel component 100B having the second configuration) is assembled to the darts arrow while the surface contact is made, and the screw reaction force based on the surface contact is generated in the inner screw portion on the surface contact side. It Further, in this state, the frustum surface 103E on the front side of the front second extending portion 105 does not make surface contact with the front end surface S12 of the facing shaft component S, and the front first internal space 200 is formed. (Fig. 5b)

（保持パーツ５）
またダーツ用バレルの構成セットとして、図５（ｂ）に示すように、前記張出部１１の多角柱の外形断面に部分対応する形状の凹部片５１を有した保持パーツ５を備えたものとしてもよい。この保持パーツ５は先端側へ解放した凹部片５１と、凹部片５１から基端部側へ連なった棒状の保持片５２を具備してなり、凹部片５１と保持片５２との間には、斜めに屈曲して連なった屈曲片５３が介設される。図６に示す実施例２の凹部片５１は両側部にて先方突出する各先端に、薄板化した延長片５４が延長形成される。また、凹部の内辺には保持の際の接触摩擦を確保するための鋸刃部５４が形成される。その他、特記しない他の構成及び使用方法は実施例１と同様である。 (Holding part 5)
Further, as a constitutional set of the barrel for darts, as shown in FIG. 5( b ), as shown in FIG. 5B, a holding part 5 having a recessed piece 51 having a shape partially corresponding to the outer cross section of the polygonal column of the overhanging portion 11 is provided. Good. The holding part 5 is provided with a recessed piece 51 that is open to the tip side and a rod-shaped holding piece 52 that is continuous from the recessed piece 51 to the base end side. Between the recessed piece 51 and the holding piece 52, A bending piece 53 that is obliquely bent and continuous is provided. In the recessed piece 51 of the second embodiment shown in FIG. 6, thinned extension pieces 54 are extendedly formed at the respective tips that project forward on both sides. In addition, a saw blade portion 54 is formed on the inner side of the recess for ensuring contact friction during holding. Other configurations and usages which are not otherwise specified are the same as those in the first embodiment.

（実施例３，４，５）
図７に、本発明の実施例３（ａ），実施例４（ｂ），実施例５（ｃ）の形態に係るダーツ用バレルのコアパーツ及び保持パーツの形態例を示す。 (Examples 3, 4, and 5)
FIG. 7 shows a form example of the core parts and the holding parts of the dart barrel according to the forms of Example 3(a), Example 4(b) and Example 5(c) of the present invention.

図７に示す実施例３〜５の凹部片５１は両側部にて先方突出する各先端に、先窄み側の台形片からなる延長片５４が延長形成される。また、凹部の内辺には保持の際の接触摩擦を確保するための緩衝材５１１が貼り付けされる。凹部片５１の内片はまた、コーナー部１１Ｃ、辺部１１Ｓに対応する形状からなると共に、両側端が先側に並走する平行辺となっている（図７）。保持パーツ５の凹部片５１を張出部１１の多角柱の辺部１１Ｓ又はコーナー部１１Ｃの対応形状部分に係止させることで張出部１１の外周面を保持したまま、フロントパーツ２又はリアパーツ３を、組合せ方向又は組合せ解除方向へ螺進させ得るものとなっている。その他、特記しない他の構成及び使用方法は実施例１と同様である。 In the recessed pieces 51 of Examples 3 to 5 shown in FIG. 7, extension pieces 54, which are trapezoidal pieces on the tapered side, are extended and formed at the respective tips that project forward on both sides. Further, a cushioning material 511 is attached to the inner side of the recess to secure contact friction during holding. The inner piece of the recess piece 51 also has a shape corresponding to the corner portion 11C and the side portion 11S, and both side ends are parallel sides running parallel to the front side (FIG. 7). By locking the recessed piece 51 of the holding part 5 to the corresponding shape portion of the side portion 11S or the corner portion 11C of the polygonal column of the projecting portion 11, the front part 2 or the rear part is held while the outer peripheral surface of the projecting portion 11 is held. The parts 3 can be screwed in the combination direction or the combination release direction. Other configurations and usages which are not otherwise specified are the same as those in the first embodiment.

（実施例６）
図８に、本発明の実施例６の形態に係るダーツ用バレルを含むダーツ矢の構成セットの組合せ構成（ａ）と第三、第四の組合せ状態例（ｂ）（ｃ）を示す。実施例６（図８）のダーツ用バレルの構成セットは、コアパーツ１、フロントパーツ２、リアパーツ３の他、さらにコアパーツ１の棒状体１０の周囲に挿通又は螺入し得る筒孔を有した短筒のリングからなる複数のリングパーツ４を備えたものとなっており、図８（ａ）に上下括弧付きで示すように、０個ないし一個以上のリングパーツ４を、張出部１１の前面又は後面側に選択式に組み合わせて使用することで、コアパーツ１の張出部１１の前面１１Ｆとフロントパーツ２の筒孔後端２２Ｅとの間、又は、コアパーツ１の張出部１１の後面１１Ｒとリアパーツ３の筒孔前端３１Ｅとの間に、一つ以上のリングパーツ４を挟設してバレル部品を構成する（図８（ｂ）（ｃ））。これにより、バレル長又はバレルの重心位置又は指掛かり部の大きさ、ないし投てき前のダーツ矢のセット状態における指掛かり位置を調整できるものとなっている。（なお、図８（ａ）の上下括弧は各リングパーツ４の有無を選択的に用いることを示している）。 (Example 6)
FIG. 8 shows a combination configuration (a) and third and fourth combination state examples (b) and (c) of the configuration set of the darts arrow including the darts barrel according to the embodiment of the present invention. The configuration set of the barrel for darts of Example 6 (FIG. 8) includes a core part 1, a front part 2, a rear part 3, and a cylindrical hole into which the rod-shaped body 10 of the core part 1 can be inserted or screwed. It is provided with a plurality of ring parts 4 each having a ring of a short cylinder, and as shown in FIG. 8(a) with upper and lower brackets, zero or one or more ring parts 4 are attached to the projecting portion. By selectively using it in combination with the front surface or the rear surface side of 11, the space between the front surface 11F of the overhanging portion 11 of the core part 1 and the rear end 22E of the cylinder hole of the front part 2 or the overhang of the core part 1 One or more ring parts 4 are sandwiched between the rear surface 11R of the portion 11 and the front end 31E of the cylindrical hole of the rear part 3 to form a barrel part (FIGS. 8B and 8C). As a result, the barrel length, the position of the center of gravity of the barrel, the size of the finger rest portion, or the finger rest position in the set state of the darts arrow before throwing can be adjusted. (Note that the upper and lower parentheses in FIG. 8A indicate that the presence or absence of each ring part 4 is selectively used).

（リングパーツ４）
リングパーツ４は所定の外径（最大外径）の円形又は多角形断面を有した、断面方形の環状連続体で構成された筒体からなる。リングパーツ４の筒体の外形は張出部１１の外形よりも大きく且つフロントパーツ２の筒孔後端２２Ｅ及びリアパーツ３の筒孔前端３１Ｅのいずれの外径よりも小さい外径（最大外径）の円形外形からなる。リングパーツ４の内径は棒状体の外形よりも大きい。また、リングパーツ４の比重がフロントパーツ２、リアパーツ３のいずれよりも小さい。 (Ring parts 4)
The ring part 4 is composed of a cylindrical body having a circular or polygonal cross section with a predetermined outer diameter (maximum outer diameter) and formed of an annular continuous body having a rectangular cross section. The outer diameter of the tubular body of the ring part 4 is larger than the outer diameter of the overhanging portion 11 and smaller than the outer diameter of either the rear end 22E of the tubular hole of the front part 2 or the front end 31E of the tubular hole of the rear part 3 (maximum outer diameter Diameter) circular outer shape. The inner diameter of the ring part 4 is larger than the outer shape of the rod-shaped body. Further, the specific gravity of the ring part 4 is smaller than that of both the front part 2 and the rear part 3.

また、実施例６のリングパーツ４は部品全体が非金属の弾性材からなる。このため、組み合わされたときに挟設状態となったリングパーツ４の弾性変形に基づいて弾性反力が生じ、隣接する螺合部（コアパーツ１の棒状体及びフロントパーツ２、リアパーツ３のいずれかの螺子部）に螺合のゆるみが生じにくいものとなる。このように、複数あるリングパーツのうち少なくとも１つ以上は表面部分又は部品全体が弾性材からなることが好ましい。この場合、組み合わされたときに挟設状態となったリングパーツ４の弾性変形に基づいて弾性反力が生じ、内部応力の掛かった状態のバレル部品を構成することができる。なお他の構成として、剛性からなるリングパーツと弾性材からなるリングパーツとを組み合わせて使用してもよいし、弾性係数ないし重量の異なるリングパーツ同士を組み合わせて使用してもよい。また、隣り合うリングパーツ同士が環状の凹凸部からなる嵌合構造によって嵌合するものとしてもよい。 In addition, the ring part 4 of the sixth embodiment is entirely made of a non-metallic elastic material. For this reason, an elastic reaction force is generated based on the elastic deformation of the ring parts 4 that are in a sandwiched state when combined, and the adjacent threaded portions (the rod-shaped body of the core part 1, the front part 2, and the rear part 3 are adjacent to each other). The loosening of the screw is unlikely to occur in any of the screw parts. As described above, it is preferable that at least one of the plurality of ring parts has a surface portion or the entire part made of an elastic material. In this case, an elastic reaction force is generated based on the elastic deformation of the ring parts 4 that are in a sandwiched state when assembled, and a barrel part in a state where internal stress is applied can be configured. As another configuration, a ring part made of rigidity and a ring part made of an elastic material may be used in combination, or ring parts having different elastic coefficients or weights may be used in combination. Further, adjacent ring parts may be fitted to each other by a fitting structure composed of an annular uneven portion.

例えば図８（ｂ）は、張出部１１の前面側及び後面側にリングパーツ４Ａ，４Ｂを一つずつ用いた場合のダーツ矢の組み合わせ例を示す。この場合、リングパーツ４は弾性材の一体製材からなるため、張出部１１の前方に組み合わされたフロントパーツ２の螺合部分、並びに、張出部１１の後方に組み合わされたリアパーツ３の螺合部分が、常に前方並びに後方への弾性反力を受けた、内部応力発生状態となる。この場合、リングパーツ４を用いない図２或いは図３の組合せ状態と比較して、重心位置を可変させることなく、バレル長１００Ｌ´が前後のリングパーツ４Ａ，４Ｂの軸長分だけ加算されたバレル部品１００´となる。 For example, FIG. 8B shows an example of a combination of dart arrows when the ring parts 4A and 4B are respectively used on the front surface side and the rear surface side of the overhanging portion 11. In this case, since the ring part 4 is made of an elastic material integrally formed, the threaded portion of the front part 2 that is combined in front of the overhanging portion 11 and the rear part 3 that is combined behind the overhanging portion 11 The screwed portion is in a state where internal stress is generated by constantly receiving the elastic reaction force in the front and rear directions. In this case, as compared with the combined state of FIG. 2 or FIG. 3 in which the ring part 4 is not used, the barrel length 100L′ is added by the axial length of the front and rear ring parts 4A and 4B without changing the position of the center of gravity. It becomes a barrel part 100'.

また、例えば図８（ｃ）は、図８（ｂ）と異なる組み合わせ例として、張出部１１の前面側にリングパーツ４を使用せず、張出部１１の後面側にのみリングパーツ４Ｂ，４Ｃ，４Ｄを３つ隣接させて用いた場合のダーツ矢の組み合わせ例を示す。この場合、リングパーツ４は弾性材の一体製材からなるため、張出部１１の後方に組み合わされたリアパーツ３の螺合部分が、常に後方への強い弾性反力を受けた、内部応力発生状態となる。この場合、リングパーツ４を用いない図２或いは図３の組合せ状態と比較して、重心位置を後方へずらすように可変させ、かつ、バレル長１００Ｌ´が後ろのリングパーツ４Ｂ，４Ｃ，４Ｄの合計軸長分だけ加算されたバレル部品１００´となる。これらのようにリングパーツ４の組合せ数を、張出部１１の前後面それぞれにて０個、１個又は複数個に変更することでバレル長又はバレルの重心位置又は指掛かり部の大きさを調整できるものとなっている。 Further, for example, FIG. 8C shows a combination example different from that of FIG. 8B, in which the ring part 4 is not used on the front surface side of the overhang portion 11 but only on the rear surface side of the overhang portion 11. An example of a combination of darts arrows when three 4C and 4D are adjacently used is shown. In this case, since the ring part 4 is made of an elastic material, the threaded portion of the rear part 3 that is combined with the rear of the overhanging portion 11 is always subjected to a strong elastic reaction force in the rear, and internal stress is generated. It becomes a state. In this case, compared to the combined state of FIG. 2 or FIG. 3 in which the ring part 4 is not used, the position of the center of gravity is changed so as to be shifted rearward, and the barrel length 100L′ of the rear ring parts 4B, 4C, 4D. The barrel component 100' is obtained by adding the total axial length. By changing the number of combinations of the ring parts 4 to 0, 1 or more on the front and rear surfaces of the overhanging portion 11 as described above, the barrel length, the position of the center of gravity of the barrel, or the size of the finger rest portion can be adjusted. It can be adjusted.

（実施例７）
図９に、本発明の実施例７の形態に係るダーツ用バレルの組合せ構成を示す。実施例７のコアシャフト１は、張出部の前面１１Ｆと棒状体の前半部１０２との境界、並びに張出部の後面１１Ｒと棒状体の後半部１０３との境界に、凹曲面からなるアール部分１１２Ｒ，１１３Ｒが形成される。また棒状体の前半部１０２の先側、並びに棒状体の後半部１０３の先側にそれぞれ、部分錐台の柱体からなる延設部第一延設部１０４，並びに第二延設部１０５が形成される。そして、コアシャフト１の棒状体の外周であって、この第一延設部１０４、第二延設部１０５の各先側、並びに前記アール部分１１２Ｒ／１１３Ｒを除いた軸方向の範囲にのみ、外螺子部が形成される。 (Example 7)
FIG. 9 shows a combination configuration of barrels for darts according to the embodiment of the present invention. The core shaft 1 according to the seventh embodiment has a rounded curved surface at the boundary between the front surface 11F of the overhanging portion and the front half 102 of the rod-shaped body and the boundary between the rear surface 11R of the overhanging portion and the rear half 103 of the rod-shaped body. Portions 112R and 113R are formed. Further, on the front side of the front half portion 102 of the rod-shaped body and on the front side of the rear half portion 103 of the rod-shaped body, an extended portion first extended portion 104 and a second extended portion 105 each of which is a columnar body of a partial truncated cone are provided. It is formed. And, in the outer circumference of the rod-shaped body of the core shaft 1, only in the respective axial sides of the first extension portion 104, the front sides of the second extension portion 105, and the radius portions 112R/113R, An outer screw portion is formed.

また、実施例７のフロントパーツ２Ｃ（２）及びリアパーツ３Ｃ（３）においては、フロントパーツ２の筒孔前端２１Ｅ及び筒孔後端２２Ｅ、並びにリアパーツ３の筒孔前端３１Ｅ及び筒孔後端３２Ｅにそれぞれ、内円錐面からなるテーパー部２１Ｔ，２２Ｔ，３１Ｔ，３２Ｔが形成されてなる。実施例７のフロントパーツ２の螺子部２０Ｌは、筒孔のうち、前後端のテーパー部２１Ｔ及び２２Ｔを除いた軸方向範囲に形成される。また、実施例７のリアパーツ３の螺子部３０Ｌは、筒孔全長の後方寄りの過半部であって、後端のテーパー部３２を除いた軸方向範囲に形成される。リアパーツ３の筒孔全長の前方寄りであって、後端のテーパー部３２を除いた軸方向範囲の部分は、筒孔内面に内螺子の形成されないストレート部３０ＳＬとなっている。 In addition, in the front part 2C(2) and the rear part 3C(3) of the seventh embodiment, the front end 21E and the rear end 22E of the cylindrical hole of the front part 2 and the front end 31E and the rear of the rear hole 3E of the rear part 3. Tapered portions 21T, 22T, 31T and 32T each having an inner conical surface are formed at the end 32E. The screw portion 20L of the front part 2 of the seventh embodiment is formed in the axial range of the cylindrical hole excluding the taper portions 21T and 22T at the front and rear ends. In addition, the screw portion 30L of the rear part 3 of the seventh embodiment is a rear half portion of the entire length of the cylindrical hole, and is formed in the axial range excluding the taper portion 32 at the rear end. The portion of the rear part 3 in the axial direction, which is closer to the front than the entire length of the cylindrical hole and excluding the tapered portion 32 at the rear end, is a straight portion 30SL in which the inner screw is not formed on the inner surface of the cylindrical hole.

張出部の前面１１Ｆと棒状体の前半部１０２との境界、並びに張出部の後面１１Ｒと棒状体の後半部１０３との境界に、凹曲面からなるアール部分１１２Ｒ，１１３Ｒが形成される。また棒状体の前半部１０２の先側、並びに棒状体の後半部１０３の先側にそれぞれ、部分錐台の柱体からなる延設部第一延設部１０４，並びに第二延設部１０５が形成される。そして、コアシャフト１の棒状体の外周であって、この第一延設部１０４、第二延設部１０５の各先側、並びに前記アール部分１１２Ｒ／１１３Ｒを除いた軸方向の範囲にのみ、外螺子部が形成される。 The rounded portions 112R and 113R having concave curved surfaces are formed at the boundary between the front surface 11F of the overhanging portion and the front half portion 102 of the rod-shaped body and the boundary between the rear surface 11R of the overhanging portion and the rear half portion 103 of the rod-shaped body. Further, on the front side of the front half portion 102 of the rod-shaped body and on the front side of the rear half portion 103 of the rod-shaped body, an extended portion first extended portion 104 and a second extended portion 105 each of which is a columnar body of a partial truncated cone are provided. It is formed. And, in the outer circumference of the rod-shaped body of the core shaft 1, only in the respective axial sides of the first extension portion 104, the front sides of the second extension portion 105, and the radius portions 112R/113R, An outer screw portion is formed.

（他の形態例）
上記各実施例において、コアシャフト１、フロントパーツ２、リアパーツ３のそれぞれのパーツは一体製材からなるものとすることができるが、他の形態例として、前記それぞれのパーツは、異質材料又は同質材料からなる部品の組合せからなるものとすることができる。 (Other form examples)
In each of the above embodiments, each of the core shaft 1, the front part 2, and the rear part 3 may be made of an integral material, but as another form example, each of the parts may be made of a different material or the same material. It may consist of a combination of parts made of materials .

また上記各実施例において、 コアシャフト１の張出部１１の最大径１１Ｄは、フロントパーツ２の後端２２Ｅ、リアパーツ３の前端３１Ｅそれぞれの最大径２２Ｄ／３１Ｄよりも小さく設定され、またフロントパーツ２の後端２２Ｅとリアパーツ３の前端３１Ｅは互いに同径に設定されており、フロントパーツ２の後端２２Ｅとリアパーツ３の前端３１Ｅとの間に挟まれた張出部１１によって溝部を形成するものとなっている。他の形態として、コアシャフト１の張出部１１の最大径１１Ｄは、フロントパーツ２の後端２２Ｅ、リアパーツ３の前端３１Ｅそれぞれの径２２Ｄ／３１Ｄと同じか或いは各径よりも大きく設定されるものであってもよい。張出部１１の最大径１１Ｄが後端２２Ｅ又は前端３１Ｅの最大径よりも大きく設定された場合で、フロントパーツ２の後端２２Ｅとリアパーツ３の前端３１Ｅとの間にて張出部１１の外周部分が外周方向へ張り出して指掛かりを形成するものとなる。 なお、最大径ないし代表径の表現は、いずれも、中心を通る対角線（多角形断面の場合）或いは径（扁平円形断面又は長円形断面の場合）のうち最も長いものをいう。 In each of the above embodiments, the maximum diameter 11D of the overhanging portion 11 of the core shaft 1 is set to be smaller than the maximum diameter 22D/31D of the rear end 22E of the front part 2 and the front end 31E of the rear part 3, respectively. The rear end 22E of the part 2 and the front end 31E of the rear part 3 are set to have the same diameter, and the groove portion is formed by the overhanging portion 11 sandwiched between the rear end 22E of the front part 2 and the front end 31E of the rear part 3. Is to be formed. As another form, the maximum diameter 11D of the overhanging portion 11 of the core shaft 1 is set to be equal to or larger than the diameter 22D/31D of each of the rear end 22E of the front part 2 and the front end 31E of the rear part 3. It may be one. When the maximum diameter 11D of the overhanging portion 11 is set larger than the maximum diameter of the rear end 22E or the front end 31E, the overhanging portion 11 is formed between the rear end 22E of the front part 2 and the front end 31E of the rear part 3. The outer peripheral portion of the bulge protrudes in the outer peripheral direction to form a finger hook. The expressions of the maximum diameter and the representative diameter are the longest of the diagonal line (in the case of a polygonal cross section) or the diameter (in the case of a flat circular cross section or an oval cross section) passing through the center.

また上記各実施例において、 フロントパーツ２の後端２２Ｅとリアパーツ３の前端３１Ｅは互いに同径に設定されているが、いずれか一方が側面視にて段状又は傾斜状に縮径すること、互いに異なる径に設定されていてもよい。さらに、各実施例において張出部１１は軸方向に亘って同径の短柱体の外形を有するが、軸方向に沿って径が徐々に異なる部分錐体の外形、或いは異なる径の円柱又は多角形柱同士が段状に連なった連続柱体の外形を有するものとしてもよい。なお、最大径ないし代表径の表現は、いずれも、中心を通る対角線（多角形断面の場合）或いは径（扁平円形断面又は長円形断面の場合）のうち最も長いものをいう。 Further, in each of the above-described embodiments, the rear end 22E of the front part 2 and the front end 31E of the rear part 3 are set to have the same diameter, but one of them should be reduced in diameter in a stepped or inclined shape in a side view. The diameters may be different from each other. Further, in each embodiment, the overhanging portion 11 has an outer shape of a short columnar body having the same diameter along the axial direction, but the outer shape of a partial cone having a gradually different diameter along the axial direction, or a cylinder having a different diameter. It may have an outer shape of a continuous column body in which polygonal columns are connected stepwise. The expressions of the maximum diameter and the representative diameter are the longest of the diagonal line (in the case of a polygonal cross section) or the diameter (in the case of a flat circular cross section or an oval cross section) passing through the center.

以上、本発明の実施の形態を詳細に説明したが、前述までの説明はあらゆる点において本発明の例示に過ぎない。本発明の範囲を逸脱することなく、種々の改良や変更を行うことができることは言うまでもない。 Although the embodiments of the present invention have been described in detail above, the above description is merely an example of the present invention in all respects. It goes without saying that various improvements and changes can be made without departing from the scope of the present invention.

１ コアパーツ
１０ 棒状体
１１ 張出部
１１Ｃ コーナー部
１１Ｆ 前面
１１Ｒ 後面
１１Ｓ 辺部
１０２ 棒状体の前半部
１０３ 棒状体の後半部
１０４ 第一延設部（延設部）
１０５ 第二延設部（延設部）
１００ バレル部品
１００Ａ 第一構成のバレル部品
１００Ｂ 第二構成のバレル部品
１００Ｌ，１００Ｌ´ バレル長
２ フロントパーツ
２０ 第一内螺子部
２１Ｅ 筒孔前端
２２Ｅ 筒孔後端
２００，２００´ 第一内部空間（内部空間）
３ リアパーツ
３０ 第二内螺子部
３１Ｅ 筒孔前端
３２Ｅ 筒孔後端
３００，３００´ 第二内部空間（内部空間）
４ リングパーツ（４Ａ，４Ｂ，４Ｃ，４Ｄ）
５ 保持パーツ
５１ 凹部片
５１０ 鋸歯部
５２ 保持片
５３ 屈曲片
５４ 先片
Ｆ フライト部品
Ｓ シャフト部品
Ｓ１１ 前方端面
Ｓ１０３ 雄螺子部
Ｔ チップ部品
Ｔ１１ 後方端面
Ｔ１０２ 雄螺子部 1 core parts 10 rod-shaped body 11 overhanging portion 11C corner portion 11F front surface 11R rear surface 11S side portion 102 front half portion of rod-shaped body 103 second half portion of rod-shaped body 104 first extended portion (extended portion)
105 Second extension part (extension part)
100 barrel parts 100A first part barrel parts 100B second part barrel parts 100L, 100L' barrel length 2 front parts 20 first inner screw part 21E cylinder hole front end 22E cylinder hole rear end 200,200' first internal space ( Internal space)
3 Rear Parts 30 Second Internal Screw Part 31E Cylinder Hole Front End 32E Cylinder Hole Rear End 300,300' Second Internal Space (Internal Space)
4 ring parts (4A, 4B, 4C, 4D)
5 Holding Parts 51 Recessed Pieces 510 Sawtooth Parts 52 Holding Pieces 53 Bending Pieces 54 Tip Pieces F Flight Parts S Shaft Parts S11 Front End Faces S103 Male Screw Part T Chip Parts T11 Rear End Faces T102 Male Screw Part

Claims (5)

一軸方向へ直線状に伸びた棒状体の長さ方向の所定位置に張出部を一体的に有した一体製材からなるコアパーツと、
筒孔全長に第一内螺子部が形成された筒状体からなると共に筒孔後端から第一内螺子部の後半部にコアパーツの棒状体の前半部を螺入し得るフロントパーツと、
筒孔全長に第二内螺子部が形成された筒状体からなると共に筒孔前端から第二内螺子部の前半部にコアパーツの棒状体の後半部を螺入し得るリアパーツと、を組み合わせて、
バレル部品がダーツ矢に組み構成されるダーツ用バレルであって、
フロントパーツの筒孔前端から第一内螺子部の前半部にダーツ矢のチップ部品の雄螺子部が螺入されると共に、
リアパーツの筒孔後端から第二内螺子部の後半部にダーツ矢のシャフト部品の雄螺子部が螺入されてダーツ矢を組み構成するものであり、
第一内螺子部及び第二内螺子部は、フロントパーツ及びリアパーツそれぞれの筒孔全長に亘って、互いに共通する所定の内径及びネジピッチで形成され、
フロントパーツの筒孔前端及びリアパーツの筒孔後端にはそれぞれ、チップ部品の後方端面及びシャフト部品の前方端面に当接する当接面が形成されてなり、
チップ部品の後方端面とコアパーツの張出部の前面とでフロントパーツを挟圧すると共に、シャフト部品の前方端面とコアパーツの張出部の後面とでリアパーツを挟圧した状態で、前記バレル部品がダーツ矢に組み構成されることを特徴とする、ダーツ用バレル。 A core part made of an integral lumber integrally having an overhanging portion at a predetermined position in the longitudinal direction of a rod-shaped body linearly extending in the uniaxial direction,
A front part that is formed of a tubular body in which the first inner screw portion is formed over the entire length of the tubular hole, and that can insert the front half of the rod-shaped body of the core part into the latter half of the first inner screw portion from the rear end of the tubular hole,
A rear part that is formed of a tubular body having a second inner screw portion formed over the entire length of the tubular hole and that can be screwed into the front half of the second inner screw portion from the front end of the tubular hole to the latter half of the rod-shaped body of the core part. In combination,
A barrel for darts in which barrel parts are assembled into a darts arrow,
From the front end of the cylinder hole of the front part, the male screw part of the chip part of the darts arrow is screwed into the front half of the first internal screw part,
The male screw part of the shaft part of the darts arrow is screwed into the rear half of the second inner screw part from the rear end of the cylindrical hole of the rear part to form a darts arrow.
The first inner screw portion and the second inner screw portion are formed with a predetermined inner diameter and a thread pitch common to each other over the entire length of the cylindrical hole of the front part and the rear part,
The front end of the cylinder hole of the front part and the rear end of the cylinder hole of the rear part are formed with contact surfaces that contact the rear end surface of the chip component and the front end surface of the shaft component, respectively.
The front part is pinched by the rear end face of the chip part and the front face of the overhang part of the core part, and the rear part is pinched by the front end face of the shaft part and the rear face of the overhang part of the core part. A barrel for darts, characterized in that the parts are assembled into a darts arrow. コアパーツは、棒状体の張出部の厚さの中央よりも前方または後方へずれた軸方向位置に重心を有し、
軸方向前方へ向けた棒状体の前半部をフロントパーツの第一内螺子部に螺入させると共に、軸方向後方へ向けた棒状体の後半部をリアパーツの第二内螺子部に螺入させることで、コアパーツが所定の前後の向きとなった第一構成のバレル部品を構成し得る一方、
コアパーツの前後の向きを変えて、棒状体の前半部を後方へ向けてリアパーツの第二内螺子部に螺入させると共に、棒状体の後半部を前方へ向けてフロントパーツの第二内螺子部に螺入させることで、コアパーツの前後の向きを変えた第二構成のバレル部品を構成し得るものであり、
前記第二構成のバレル部品は、前記第一構成のバレル部品と比べて、軸方向の重心位置が異なる、請求項１に記載のダーツ用バレル。 The core part has a center of gravity at an axial position displaced forward or backward from the center of the thickness of the protruding portion of the rod-shaped body,
The front half of the rod-shaped body facing axially forward is screwed into the first inner screw portion of the front part, and the rear half of the rod-shaped body facing axially rearward is screwed into the second inner screw portion of the rear part. By doing so, while the core parts can form the barrel part of the first configuration with the predetermined front-back orientation,
Change the front-back direction of the core part so that the front half of the rod is screwed backwards into the second inner screw part of the rear part, and the second half of the rod is turned forward and the second inner part of the front part is turned. By being screwed into the screw part, it is possible to form a barrel part having a second configuration in which the front and rear directions of the core part are changed,
The barrel for darts according to claim 1, wherein the barrel component of the second configuration is different from the barrel component of the first configuration in the position of the center of gravity in the axial direction. コアパーツは、張出部を挟んだ前半部の棒状体と後半部の棒状体とが、互いに異なる前後非対称の軸長からなり、
軸方向前方へ向けた棒状体の前半部をフロントパーツの第一内螺子部に螺入させると共に、軸方向後方へ向けた棒状体の後半部をリアパーツの第二内螺子部に螺入させることで、コアパーツが所定の前後の向きとなった第一構成のバレル部品を構成し得る一方、
コアパーツの前後の向きを変えて、棒状体の前半部を後方へ向けてリアパーツの第二内螺子部に螺入させると共に、棒状体の後半部を前方へ向けてフロントパーツの第二内螺子部に螺入させることで、コアパーツの前後の向きを変えた第二構成のバレル部品を構成し得るものであり、
第一構成又は第二構成のバレル部品，の内部であって、コアパーツの前端又は後端の少なくともいずれかの先部には、内部空間が形成され、
前記第二構成のバレル部品は、前記第一構成のバレル部品と比べて、前方と後方の内部空間の少なくともいずれかの大きさが異なる、請求項１又は２に記載のダーツ用バレル。 In the core part, the rod-shaped body in the front half and the rod-shaped body in the rear half sandwiching the overhang portion are formed of axial lengths that are different from each other in the front and rear direction,
The front half of the rod-shaped body facing axially forward is screwed into the first inner screw portion of the front part, and the rear half of the rod-shaped body facing axially rearward is screwed into the second inner screw portion of the rear part. By doing so, while the core parts can form the barrel part of the first configuration with the predetermined front-back orientation,
Change the front-back direction of the core part so that the front half of the rod is screwed backwards into the second inner screw part of the rear part, and the second half of the rod is turned forward and the second inner part of the front part is turned. By being screwed into the screw part, it is possible to form a barrel part having a second configuration in which the front and rear directions of the core part are changed,
Inside the barrel component of the first configuration or the second configuration, the internal space is formed at the front end of at least one of the front end and the rear end of the core part,
The barrel for darts according to claim 1 or 2, wherein the barrel component of the second configuration is different from the barrel component of the first configuration in at least one of the front and rear internal spaces. 一軸方向へ直線状に伸びた棒状体の長さ方向の中央部付近に、多角形外形又は円形外形の短柱体からなる張出部を一体的に有した一体製材からなるコアパーツと、
筒孔全長に第一内螺子部が形成された筒状体からなると共に筒孔後端から第一内螺子部の後半部にコアパーツの棒状体の前半部を螺入し得るフロントパーツと、
筒孔全長に第二内螺子部が形成された筒状体からなると共に筒孔前端から第二内螺子部の前半部にコアパーツの棒状体の後半部を螺入し得るリアパーツと、を備えたダーツ用バレルの構成セットであって、
フロントパーツ又はリアパーツのいずれか一つ以上が複数種類からなると共に、
当該複数種類のフロントパーツ又は複数種類のリアパーツは、特定のパーツ毎に軸方向の長さが異なる複数種類からなり、
前記複数種類のフロントパーツ又は複数種類のリアパーツの各種類をひとつずつ選択して組み合わせることで、
組合せの選択によってバレル長の異なる、複数種類のバレル部品を構成する、ダーツ用バレルの構成セット。 In the vicinity of the central portion in the length direction of the rod-shaped body linearly extending in the uniaxial direction, a core part made of an integral lumber integrally having an overhanging portion made of a short columnar body having a polygonal outer shape or a circular outer shape,
A front part that is formed of a tubular body in which the first inner screw portion is formed over the entire length of the tubular hole, and that can insert the front half of the rod-shaped body of the core part into the latter half of the first inner screw portion from the rear end of the tubular hole,
A rear part that is formed of a tubular body having a second inner screw portion formed over the entire length of the tubular hole and that can be screwed into the front half of the second inner screw portion from the front end of the tubular hole to the latter half of the rod-shaped body of the core part. A set of barrels for darts equipped with,
Along with multiple types of front parts or rear parts,
The plural kinds of front parts or plural kinds of rear parts are composed of plural kinds having different axial lengths for each specific part,
By selecting and combining each of the multiple types of front parts or multiple types of rear parts,
A set of barrels for darts that configures multiple types of barrel parts with different barrel lengths by selecting the combination. 一軸方向へ直線状に伸びた棒状体の長さ方向の中央部付近に、多角形外形又は円形外形の短柱体からなる張出部を一体的に有した一体製材からなるコアパーツと、
筒孔全長に第一内螺子部が形成された筒状体からなると共に筒孔後端から第一内螺子部の後半部にコアパーツの棒状体の前半部を螺入し得るフロントパーツと、
筒孔全長に第二内螺子部が形成された筒状体からなると共に筒孔前端から第二内螺子部の前半部にコアパーツの棒状体の後半部を螺入し得るリアパーツと、
コアパーツの棒状体の周囲に挿通又は螺入し得る筒孔を有した短筒のリングからなる一または複数のリングパーツと、を備えたダーツ用バレルの構成セットであって、
前記リングパーツは、フロントパーツの筒孔後端及びリアパーツの筒孔前端のいずれの外径よりも小さい最大外径の円形又は多角形断面を有し、
１つ以上のリングパーツを、コアパーツの張出部の前面又は／及び後面に接するように選択的に組み合わせることで、
コアパーツの張出部の前面とフロントパーツの筒孔後端との間、又は、コアパーツの張出部の後面とリアパーツの筒孔前端との間の少なくともいずれかに、一つ以上のリングパーツを挟設したバレル部品を構成する、ダーツ用バレルの構成セット。
In the vicinity of the central portion in the length direction of the rod-shaped body linearly extending in the uniaxial direction, a core part made of an integral lumber integrally having an overhanging portion made of a short columnar body having a polygonal outer shape or a circular outer shape,
A front part that is formed of a tubular body in which the first inner screw portion is formed over the entire length of the tubular hole, and that can insert the front half of the rod-shaped body of the core part into the latter half of the first inner screw portion from the rear end of the tubular hole,
A rear part that is formed of a tubular body in which a second inner screw portion is formed over the entire length of the tubular hole and that can be screwed into the rear half of the rod-shaped body of the core part from the front end of the tubular hole to the front half of the second inner screw portion .
A configuration set of a barrel for darts, comprising one or a plurality of ring parts made of a ring of a short cylinder having a cylinder hole that can be inserted or screwed around the rod-shaped body of the core part,
The ring part has a circular or polygonal cross section with a maximum outer diameter smaller than the outer diameter of either the rear end of the front part and the front end of the rear part.
By selectively combining one or more ring parts so as to contact the front surface and/or the rear surface of the overhanging portion of the core part,
One or more between the front surface of the overhanging portion of the core part and the rear end of the cylinder hole of the front part, or between the rear surface of the overhanging portion of the core part and the front end of the cylinder hole of the rear part. A set of barrels for darts that composes barrel parts that sandwich ring parts.
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