JP6470072B2 - Connection structure of cylindrical bodies - Google Patents

Connection structure of cylindrical bodies Download PDF

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JP6470072B2
JP6470072B2 JP2015047229A JP2015047229A JP6470072B2 JP 6470072 B2 JP6470072 B2 JP 6470072B2 JP 2015047229 A JP2015047229 A JP 2015047229A JP 2015047229 A JP2015047229 A JP 2015047229A JP 6470072 B2 JP6470072 B2 JP 6470072B2
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cylindrical body
peripheral surface
female
outer peripheral
cylindrical
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JP2016165252A (en
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辰己　卓司
卓司 辰己
信広 菅沼
信広 菅沼
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Shimano Inc
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Description

本発明は、釣竿を掛けておく竿掛けや玉ノ柄を構成する複数の筒状体同士を連結するための連結構造に関する。   The present invention relates to a connection structure for connecting a plurality of cylindrical bodies constituting a hook and a ball pattern for hanging a fishing rod.

例えば、へら釣りを行う際にはへら竿（釣竿）を置くための竿掛けが使用される。該竿掛けは、釣り座や釣り台、釣船等の桟に、万力で固定して使用される。該竿掛けは、炭素繊維等の強化繊維に合成樹脂を含浸させたプリプレグをマンドレルに巻回し加熱焼成して形成された複数の筒状体を備え、それらの筒状体同士を着脱自在に連結させて長さを調整する。例えば、長いへら竿を使用する場合には、多数の筒状体を継ぎ合わせて竿掛けを長くする。逆に、短いへら竿を使用する場合には、使用する筒状体の本数を減らして竿掛けの全長を短くする。このような竿掛けの先端に枕を取り付け、万力の支持軸部を竿掛けの後端部に差し込むようにして万力に竿掛けをセットし、枕にへら竿の中途部分を支持させ、また、万力の竿受けにはへら竿の元部を支持させる。   For example, when performing spatula fishing, a hook for placing a spatula rod (fishing rod) is used. The hook is used with a vise and fixed to a pedestal such as a fishing seat, a fishing pole or a fishing boat. The hook includes a plurality of cylindrical bodies formed by winding a prepreg in which a reinforcing fiber such as carbon fiber is impregnated with a synthetic resin around a mandrel and heating and firing, and the cylindrical bodies are detachably connected to each other. Adjust the length. For example, when a long spatula is used, a large number of cylindrical bodies are joined together to lengthen the hook. Conversely, when a short spatula is used, the number of cylindrical bodies to be used is reduced to shorten the overall length of the hook. Attach a pillow to the tip of such a hook, set the hook on the vise so that the support shaft part of the vise is inserted into the rear end of the hook, and support the middle part of the spatula on the pillow, In addition, the base of the spatula is supported for receiving the vise.

これらの筒状体同士を連結するための構造として印籠継ぎがある。この印籠継ぎは、一方の筒状体の端部に芯材を挿入して固定し、この芯材を他方の筒状体の端部に挿入して着脱自在に連結するものである。このような印籠継ぎでは、一方の筒状体の芯材の外周面と他方の筒状体の内周面との間の摩擦力によって連結状態を維持する構成であるため、芯材の外径と筒状体の内径の寸法精度が重要になる。その一方、長期の使用によって芯材の外周面や筒状体の内周面が摩耗したり、あるいは、温度等の影響で寸法が変化する可能性がある。そのため、連結状態において、一方の筒状体の端面と他方の筒状体の端面とが当接せずに両端面の間に所定の隙間が形成される構成とされる。しかしながら、筒状体同士の間に隙間が形成されると、その隙間から芯材が見えることになるため、連結部分の美観が損なわれるという問題がある。特にへら釣りにおいては、竿や竿掛け、枕、万力、玉網といった各種の釣り用品の素材や装飾に対して釣り人は風情や趣味性を強く求める。従って、筒状体同士の連結部分に隙間が存在していることは外観上好ましくない。   As a structure for connecting these cylindrical bodies, there is a seal joint. In this seal joint, a core member is inserted and fixed to an end portion of one cylindrical body, and the core member is inserted into an end portion of the other cylindrical body to be detachably connected. In such a seal joint, since the connection state is maintained by the frictional force between the outer peripheral surface of the core material of one cylindrical body and the inner peripheral surface of the other cylindrical body, the outer diameter of the core material And the dimensional accuracy of the inner diameter of the cylindrical body is important. On the other hand, there is a possibility that the outer peripheral surface of the core material or the inner peripheral surface of the cylindrical body may be worn by long-term use, or the dimensions may change due to the influence of temperature or the like. Therefore, in the connected state, the end face of one cylindrical body and the end face of the other cylindrical body are not in contact with each other, and a predetermined gap is formed between both end faces. However, if a gap is formed between the cylindrical bodies, the core material can be seen from the gap, and thus there is a problem that the aesthetic appearance of the connecting portion is impaired. In particular, in spatula fishing, anglers strongly demand the taste and hobby of materials and decorations for various fishing equipment such as rods, hooks, pillows, vise, and nets. Therefore, it is not preferable in appearance that there is a gap in the connecting portion between the cylindrical bodies.

かかる問題に対して本出願人は既に下記特許文献１所載の連結構造を提案している。該連結構造では、筒状体の端面同士の間の隙間をスリーブで覆い隠すというものである。このようにスリーブで隙間を外側から覆うことで良好な外観体裁が得られる。しかしながら、かかる構成においても、一方の筒状体の芯材を若干テーパ状に形成しておいてその芯材を他方の筒状体に強く押し込むことによって摩擦力を発生させ、その摩擦力で連結状態を維持する構成であるため、他方の筒状体に向けて一方の筒状体の芯材を必要以上に強く押し込みやすい。つまり、芯材の停止位置が定まっていないため、必要以上に芯材を押し込もうとする結果、摩擦力が過度に大きくなりやすい。そのため、逆に連結状態を解除する際には芯材が抜けにくくなる。   For this problem, the present applicant has already proposed a connection structure described in Patent Document 1 below. In this connection structure, the gap between the end faces of the cylindrical body is covered with a sleeve. In this way, a good appearance can be obtained by covering the gap from the outside with the sleeve. However, even in such a configuration, the core material of one cylindrical body is formed in a slightly tapered shape, and a frictional force is generated by strongly pushing the core material into the other cylindrical body, and the connection is made by the frictional force. Since it is the structure which maintains a state, it is easy to push in the core material of one cylindrical body more strongly than necessary toward the other cylindrical body. That is, since the stop position of the core material is not fixed, the frictional force tends to become excessively large as a result of trying to push the core material more than necessary. Therefore, when releasing the connected state, the core material is unlikely to come off.

特許第３７１１３２５号公報Japanese Patent No. 3711325

それゆえに本発明は上記従来の問題点に鑑みてなされ、良好な外観体裁が得られると共に連結及び連結解除の操作性に優れた筒状体の連結構造を提供することを課題とする。   Therefore, the present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a connecting structure of cylindrical bodies that can obtain a good appearance and is excellent in operability of connection and disconnection.

本発明は上記課題を解決すべくなされたものであって、本発明に係る筒状体の連結構造は、竿掛けや玉ノ柄を構成する第一及び第二の筒状体同士を着脱自在に連結するための構造であって、第一及び第二の筒状体はそれぞれプリプレグの巻回により形成された筒状体本体を備え、第一の筒状体の筒状体本体には該筒状体本体の端面から所定長さ突出するように雄側部材が挿入固定され、第二の筒状体の筒状体本体の端部に小径部が形成され、該小径部の外周面に雌側筒体が装着されており、第一の筒状体の筒状体本体の端面が雌側筒体の端面に当接するまで雄側部材の突出部は雌側筒体に嵌入可能であり、雄側部材の突出部の外周面と雌側筒体の内周面のうち一方には軸線方向に延びる係合凹溝が形成され且つ他方には係合凹溝に係合する係合凸条が形成され、雄側部材の突出部を雌側筒体に嵌入した状態で、雄側部材の突出部の外周面と雌側筒体の内周面との間のクリアランス分、一方の筒状体を他方の筒状体に対して周方向に回転させることにより、雄側部材の突出部の外周面と雌側筒体の内周面との間の周方向の摩擦力で連結状態が維持されるように構成されていることを特徴とする。また、本発明に係る筒状体の連結構造は、竿掛けや玉ノ柄を構成する第一及び第二の筒状体同士を着脱自在に連結するための構造であって、第一及び第二の筒状体はそれぞれプリプレグの巻回により形成された筒状体本体を備え、第一の筒状体の筒状体本体には該筒状体本体の端面から所定長さ突出するように雄側部材が挿入固定され、第二の筒状体の筒状体本体の端部には雌側筒体が装着されており、第一の筒状体の筒状体本体の端面が雌側筒体の端面に当接するまで雄側部材の突出部は雌側筒体に嵌入可能であり、雄側部材の突出部の外周面には軸線方向に延びる係合凹溝が形成され且つ雌側筒体の内周面には係合凹溝に係合する係合凸条が形成されており、雄側部材の突出部を雌側筒体に嵌入した状態で、雄側部材の突出部の外周面と雌側筒体の内周面との間のクリアランス分、一方の筒状体を他方の筒状体に対して周方向に回転させることにより、雄側部材の突出部の外周面と雌側筒体の内周面との間の周方向の摩擦力で連結状態が維持されるように構成されており、係合凸条に対応した雌側筒体の外周面の位置には竹の芽状の凹部が形成され、且つ、第一の筒状体の筒状体本体の端面と雌側筒体の端面が当接する箇所が竹の節の筋の模様とされて、連結部分が竹の節に模されていることを特徴とする。 The present invention has been made to solve the above-described problems, and the connecting structure of the cylindrical bodies according to the present invention is detachable between the first and second cylindrical bodies constituting the hook and the ball pattern. a structure for coupling the first and second tubular member includes a tubular body formed by the respective prepreg wound, the tubular body of the first tubular body said The male member is inserted and fixed so as to protrude a predetermined length from the end surface of the cylindrical body main body, a small diameter portion is formed at the end of the cylindrical body main body of the second cylindrical body, and the outer peripheral surface of the small diameter portion is formed. The female side tubular body is mounted, and the protruding portion of the male side member can be fitted into the female side tubular body until the end surface of the tubular body main body of the first tubular body contacts the end surface of the female side tubular body . , engagement for engaging the outer peripheral surface and the engaging recessed groove in and engaging grooves extending in the axial direction is formed and the other on one of the inner peripheral surface of the female tubular body of the projecting portion of the male member Ridges are formed, while fitting the projecting portion of the male member to the female side cylindrical body, between the inner peripheral surface of the outer peripheral surface and the female tubular body of the projecting portion of the male member a clearance, in one By rotating the cylindrical body in the circumferential direction with respect to the other cylindrical body, it is connected by a circumferential frictional force between the outer peripheral surface of the protruding portion of the male member and the inner peripheral surface of the female cylindrical member. Is configured to be maintained. Moreover, the connection structure of the cylindrical body which concerns on this invention is a structure for connecting the 1st and 2nd cylindrical bodies which comprise a hook and a ball pattern removably, Comprising: 1st and 2nd Each of the second cylindrical bodies has a cylindrical body body formed by winding a prepreg, and the cylindrical body body of the first cylindrical body projects from the end surface of the cylindrical body body by a predetermined length. A male side member is inserted and fixed, a female side cylindrical body is attached to an end of the cylindrical body main body of the second cylindrical body, and an end surface of the cylindrical body main body of the first cylindrical body is a female side The protrusion of the male member can be fitted into the female cylinder until it abuts the end surface of the cylinder, and the outer peripheral surface of the protrusion of the male member is formed with an engaging ditch extending in the axial direction. Engagement ridges that engage with the engagement grooves are formed on the inner peripheral surface of the cylinder, and the protrusion of the male member is inserted into the female cylinder with the protrusion of the male member inserted. With the outer surface By rotating one cylindrical body in the circumferential direction relative to the other cylindrical body by the clearance between the inner peripheral surface of the side cylindrical body, the outer peripheral surface of the protruding portion of the male side member and the female cylindrical body The connection state is maintained by the frictional force in the circumferential direction between the inner peripheral surface and the position of the outer peripheral surface of the female cylinder corresponding to the engaging ridges is bamboo bud-like The concave portion is formed, and the portion where the end surface of the cylindrical body main body of the first cylindrical body and the end surface of the female side cylindrical body abut is a pattern of bamboo knots, and the connecting portion is a bamboo knot. It is characterized by being imitated.

該構成の連結構造にあっては、第一の筒状体と第二の筒状体とを連結するに際して第一の筒状体の雄側部材を第二の筒状体に挿入していくのであるが、雄側部材の外周面と第二の筒状体の端部内周面には係合凹溝又は係合凸条が形成されているので、第二の筒状体に対して第一の筒状体が所定の周方向の位置になった状態で挿入していくことになる。雄側部材を挿入していくとやがて第一の筒状体の筒状体本体の端面が第二の筒状体の端面に当接し、それ以上挿入することができない状態となる。そして、その状態から第一の筒状体を第二の筒状体に対して周方向に回転させる。雄側部材の突出部の外周面と第二の筒状体の端部内周面との間には僅かではあるがクリアランスが存在している。従って、そのクリアランスに相当する角度、第一の筒状体を第二の筒状体に対して相対的に回転させると、係合凹溝の壁面が係合凸条に乗り上げようとし、雄側部材は周方向の反対側に押されて、いわゆるこじた状態となる。このような周方向の回転によって雄側部材の外周面と第二の筒状体の端部内周面との間に摩擦力が生まれ、その摩擦力によって連結状態が維持される。竿掛けや玉ノ柄は、通常の釣竿とは異なり、竿を振るという操作が行われないため、小さい摩擦力であっても筒状体同士の連結状態は維持される。そして、連結状態では、第一の筒状体の筒状体本体の端面と第二の筒状体の端面とが当接した状態となっているので、両者の間に隙間が存在せず、良好な外観を得ることができる。また、連結状態を解除する場合には、第一の筒状体を第二の筒状体に対して反対側に少しの角度回転させて、こじた状態を解除すればよく、そこから雄側部材を楽に抜き出すことができる。   In the connection structure having this configuration, when connecting the first cylindrical body and the second cylindrical body, the male side member of the first cylindrical body is inserted into the second cylindrical body. However, since the engaging groove or the engaging ridge is formed on the outer peripheral surface of the male member and the inner peripheral surface of the end portion of the second cylindrical body, One cylindrical body is inserted in a state where it is in a predetermined circumferential position. As the male member is inserted, the end surface of the tubular body of the first tubular body eventually comes into contact with the end surface of the second tubular body, and no further insertion is possible. And the 1st cylindrical body is rotated in the circumferential direction with respect to the 2nd cylindrical body from the state. There is a slight clearance between the outer peripheral surface of the protruding portion of the male member and the inner peripheral surface of the end of the second cylindrical body. Therefore, when the first cylindrical body is rotated relative to the second cylindrical body at an angle corresponding to the clearance, the wall surface of the engaging groove is about to run on the engaging protrusion, and the male side The member is pushed to the opposite side in the circumferential direction and is in a so-called prying state. Such circumferential rotation generates a frictional force between the outer peripheral surface of the male member and the inner peripheral surface of the end of the second cylindrical body, and the connected state is maintained by the frictional force. Unlike a normal fishing rod, the hook and the ball pattern are not operated to shake the rod, so that the connected state of the cylindrical bodies is maintained even with a small frictional force. And in the connected state, since the end surface of the cylindrical body body of the first cylindrical body and the end surface of the second cylindrical body are in contact, there is no gap between them, A good appearance can be obtained. In addition, when releasing the connected state, the first cylindrical body may be rotated by a slight angle to the opposite side with respect to the second cylindrical body to release the twisted state, from which the male side is released. The member can be extracted easily.

特に、第一及び第二の筒状体はそれぞれプリプレグを巻回して形成した筒状体本体を備え、第二の筒状体の筒状体本体の端部に雌側筒体が装着され、該雌側筒体に雄側部材が嵌入されると共に雌側筒体の内周面に係合凹溝又は係合凸条が形成されていることが好ましい。筒状体本体がプリプレグから形成されたものである場合、筒状体本体の全長が長いことから、その内周面に係合凹溝や係合凸条を形成するとその製造が複雑になる。そこで、別体の雌側筒体の内周面に係合凹溝や係合凸条を形成するようにしてそれを筒状体本体の端部に装着するようにすると、製造が容易になり、寸法精度も向上し、寸法管理も容易になる。雄側部材と雌側筒体は何れも筒状体本体とは別体にて形成されるため、筒状体本体とは別に雄側部材と雌側筒体との間で寸法を管理することができ、所定の挿入感覚や回転感覚、所定の摩擦力が得られる雄側部材と雌側筒体の組み合わせを予め見つけておいて、その雄側部材と雌側筒体をセットで保管しておくことにより、製造が容易になる。   In particular, the first and second cylindrical bodies each include a cylindrical body body formed by winding a prepreg, and a female cylinder is attached to the end of the cylindrical body body of the second cylindrical body, It is preferable that a male side member is fitted into the female side cylindrical body, and an engaging groove or an engaging ridge is formed on the inner peripheral surface of the female side cylindrical body. In the case where the cylindrical body body is formed from a prepreg, since the entire length of the cylindrical body body is long, the manufacturing thereof is complicated if the engagement grooves and the engagement protrusions are formed on the inner peripheral surface thereof. Therefore, if an engagement groove or engagement ridge is formed on the inner peripheral surface of a separate female cylinder, and it is attached to the end of the cylinder body, manufacturing becomes easier. Dimensional accuracy is improved, and dimensional management becomes easy. Since the male side member and the female side cylindrical body are formed separately from the cylindrical body main body, the dimensions should be managed between the male side member and the female side cylindrical body separately from the cylindrical body main body. The combination of the male side member and the female side cylinder that can obtain a predetermined insertion sensation, rotation sensation, and a predetermined frictional force is found in advance, and the male side member and the female side cylinder are stored as a set. This facilitates manufacturing.

更に、雌側筒体は筒状体本体の端部外周面に装着されていることが好ましい。雌側筒体を筒状体本体の端部内周面に装着する構成とすることもできるが、その構成では、第一の筒状体の筒状体本体の外周面と第二の筒状体の筒状体本体の外周面との間に大きな段差が生じやすい。その段差を小さくしたり段差をなくして略面一とするためには、第一の筒状体の筒状体本体の内周面と雄側部材の外周面との間に別途の筒状のスペーサを介在させたり、あるいは、雄側部材を段付きの構成としたりする必要がある。それに対して、雌側筒体を筒状体本体の端部外周面に装着する構成とすれば、別途のスペーサや段付きの雄側部材が不要になり、製造が容易になる。   Furthermore, it is preferable that the female cylinder is attached to the outer peripheral surface of the end of the cylindrical body. Although it can also be set as the structure which mounts a female side cylinder to the edge part inner peripheral surface of a cylindrical body main body, in that structure, the outer peripheral surface of the cylindrical body main body of a 1st cylindrical body, and a 2nd cylindrical body A large step is likely to occur between the outer peripheral surface of the cylindrical body. In order to reduce the level difference or eliminate the level difference and make it substantially flush, a separate cylindrical shape is provided between the inner peripheral surface of the cylindrical body of the first cylindrical body and the outer peripheral surface of the male member. It is necessary to interpose a spacer or to have a male side member with a stepped structure. On the other hand, if the female side cylindrical body is mounted on the outer peripheral surface of the end portion of the cylindrical body main body, a separate spacer or a stepped male side member becomes unnecessary, and the manufacturing becomes easy.

また更に、第二の筒状体の筒状体本体の端部に小径部が形成され、該小径部の外周面に雌側筒体が装着されていることが好ましく、雌側筒体の外周面と第二の筒状体の筒状体本体の外周面との間の段差を小さくすることができて外周面を略面一に連続させることもでき、より一層良好な外観が得られる。   Furthermore, it is preferable that a small-diameter portion is formed at the end of the cylindrical body of the second cylindrical body, and a female-side cylinder is attached to the outer peripheral surface of the small-diameter portion. The step between the surface and the outer peripheral surface of the cylindrical body of the second cylindrical body can be reduced, and the outer peripheral surface can be made substantially flush with each other, so that a better appearance can be obtained.

また、雌側筒体の内周面に係合凸条が形成され、該係合凸条に対応した雌側筒体の外周面に凹部が形成されていることが好ましく、その凹部を外周面の模様として使用することにより、装飾のバリエーションが増加する。通常、外周面に凹部を形成すると、凹部を形成した箇所の肉厚が薄くなって強度が低下するが、内周面に係合凸条が形成されているので、肉厚低下を防止することができる。   Moreover, it is preferable that an engagement protrusion is formed on the inner peripheral surface of the female cylinder, and a recess is formed on the outer periphery of the female cylinder corresponding to the engagement protrusion. By using it as a pattern, the variation of decoration increases. Normally, when the concave portion is formed on the outer peripheral surface, the thickness of the portion where the concave portion is formed is reduced and the strength is reduced, but the engagement convex strip is formed on the inner peripheral surface, thereby preventing the thickness reduction. Can do.

更に、雌側筒体の内周面の全周のうち一箇所のみに係合凸条が形成され、雌側筒体の外周面の凹部は竹の節の芽状に形成されていることが好ましい。凹部が全周のうちの一箇所のみに形成されていて竹の節の芽状に形成されていることにより、より一層リアルな装飾を施すことができる。特に、竹の芽の窪みは大きく深いものであるため、それを模した凹部を形成する場合にはその部分の強度低下が問題となりやすいが、内周面に係合凸条が形成されているので、外周面に竹の芽状の凹部を形成しても強度を容易に確保することができる。   Furthermore, the engagement protrusion is formed only in one place in the entire circumference of the inner peripheral surface of the female cylinder, and the recess on the outer peripheral surface of the female cylinder is formed in the shape of a bamboo knot. preferable. A more realistic decoration can be given because the recessed part is formed in only one part of the entire circumference and is formed in the shape of a bamboo knot. In particular, since the buds of bamboo buds are large and deep, when forming a recess imitating it, the strength of the portion is likely to be reduced, but an engaging protrusion is formed on the inner peripheral surface. Therefore, the strength can be easily ensured even if a bamboo bud-like recess is formed on the outer peripheral surface.

以上のように、本発明に係る筒状体の連結構造にあっては、連結部分に隙間が発生しないので、良好な外観を得られる。また、従来のような軸線方向の押し込み操作によって摩擦力を生じさせて連結状態を維持する構造ではなく、端面同士が当接する位置までは楽に挿入、抜き出し操作が可能であって、当接位置において少しの角度回転操作することによって摩擦力を生じさせる構造となっているので、連結及び連結解除の操作性も優れている。   As described above, in the connecting structure for cylindrical bodies according to the present invention, no gap is generated in the connecting portion, so that a good appearance can be obtained. Also, it is not a structure that maintains the connected state by generating frictional force by pushing operation in the axial direction as in the past, but it can be easily inserted and extracted up to the position where the end faces come into contact with each other. Since it is structured to generate a frictional force by a slight angle rotation operation, the operability of connection and disconnection is also excellent.

本発明の一実施形態における筒状体の連結構造を備えた竿掛けの部品構成概略図。BRIEF DESCRIPTION OF THE DRAWINGS The component structure schematic of the hook provided with the connection structure of the cylindrical body in one Embodiment of this invention. 同筒状体の連結する前の状態を示す要部断面図。The principal part sectional drawing which shows the state before connecting the cylindrical body. 同筒状体の連結状態を示す要部断面図。The principal part sectional view which shows the connection state of the cylindrical body. 図３のＡ−Ａ断面図であって、（ａ）は雄側部材を所定位置まで差し込んだ状態を示し、（ｂ）は（ａ）の状態から所定角度回転させた連結完了状態を示す。FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3, where (a) shows a state in which the male member is inserted to a predetermined position, and (b) shows a connection completion state in which the member is rotated by a predetermined angle from the state of (a). 図４（ｂ）の要部拡大図。The principal part enlarged view of FIG.4 (b). 本発明の他の実施形態における筒状体の連結構造を示す要部断面図であって、（ａ）は連結前の状態を示し、（ｂ）は連結状態を示す。It is principal part sectional drawing which shows the connection structure of the cylindrical body in other embodiment of this invention, (a) shows the state before a connection, (b) shows a connection state. （ａ）は同筒状体の連結状態を示す要部正面図、（ｂ）は同筒状体の連結状態を示す要部平面図。(A) is a principal part front view which shows the connection state of the cylindrical body, (b) is a principal part top view which shows the connection state of the cylinder body. 本発明の他の実施形態における筒状体の連結構造を示す要部断面図であって、（ａ）は連結前の状態を示し、（ｂ）は連結状態を示す。It is principal part sectional drawing which shows the connection structure of the cylindrical body in other embodiment of this invention, (a) shows the state before a connection, (b) shows a connection state. 本発明の他の実施形態における筒状体の連結構造を示す要部断面図であって、（ａ）は連結前の状態を示し、（ｂ）は連結状態を示す。It is principal part sectional drawing which shows the connection structure of the cylindrical body in other embodiment of this invention, (a) shows the state before a connection, (b) shows a connection state.

＜全体構成＞
以下、本発明の一実施形態に係るについて図１〜図５を参酌しつつ説明する。本実施形態では筒状体の連結構造をへら竿の竿掛けに適用した場合について説明する。図１に竿掛けの部品構造を概略で示している。該竿掛けは、長さの異なる複数の筒状体１，２，３を備えている。本実施形態では一例として三本の筒状体１，２，３から構成される場合を示しているが、この本数は任意である。かかる竿掛けはその先端に枕４が取り付けられ、元部が万力５に取り付けられて使用される。例えば、全長の短い使用状態とする場合には中央の二番目の筒状体２を使用せずに一番目の筒状体１と三番目の筒状体３を連結して使用し、全長の長い使用状態とする場合には一番目の筒状体１に二番目の筒状体２を連結し、二番目の筒状体２に三番目の筒状体３を連結する、即ち、全ての筒状体１，２，３を連結して使用する。枕４は、その取り付け軸部４ａを一番目の筒状体１の先端部に嵌入して取り付け、その二股状部４ｂにへら竿を支持させるようにして使用する。万力５の支持軸部５ａには三番目の筒状体３の基端部が外嵌される。本実施形態における連結構造は、各筒状体１，２，３同士を連結する部分に採用されている。以下、一番目の筒状体１を第二の筒状体とし、二番目の筒状体２を第一の筒状体として、二番目の筒状体２の先端部と一番目の筒状体１の基端部とを連結する場合を例に説明する。尚、筒状体１，２，３同士は、一方が雄側で他方が雌側であり、従って、一つの筒状体はその両端部のうちの一方（一端部）が雄側で他方（他端部）が雌側である。但し、両端部共に雄側や雌側であってもよい。 <Overall configuration>
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment demonstrates the case where the connection structure of a cylindrical body is applied to the spatula hooking. FIG. 1 schematically shows the structure of a hanging part. The hook includes a plurality of cylindrical bodies 1, 2, and 3 having different lengths. In this embodiment, the case where it comprises three cylindrical bodies 1, 2, and 3 is shown as an example, but this number is arbitrary. Such a hook is used with a pillow 4 attached to its tip and a base attached to a vise 5. For example, in the case of a use state with a short overall length, the first cylindrical body 1 and the third cylindrical body 3 are connected and used without using the second cylindrical body 2 at the center, In the case of long use, the second cylindrical body 2 is connected to the first cylindrical body 1, and the third cylindrical body 3 is connected to the second cylindrical body 2, that is, all The cylindrical bodies 1, 2, and 3 are connected and used. The pillow 4 is used in such a manner that its attachment shaft portion 4a is fitted and attached to the tip of the first cylindrical body 1, and the spatula is supported by the bifurcated portion 4b. The base end portion of the third cylindrical body 3 is fitted on the support shaft portion 5 a of the vise 5. The connection structure in the present embodiment is employed in a portion that connects the cylindrical bodies 1, 2, and 3 together. Hereinafter, the first cylindrical body 1 is the second cylindrical body, the second cylindrical body 2 is the first cylindrical body, and the distal end portion of the second cylindrical body 2 and the first cylindrical body. The case where it connects with the base end part of the body 1 is demonstrated to an example. In addition, as for cylindrical body 1,2,3, one side is a male side and the other is a female side, Therefore, one cylindrical body has one side (one end part) on the male side and the other (one side). The other end is the female side. However, both ends may be male or female.

＜一番目の筒状体１＞
一番目の筒状体１は、二番目の筒状体２と略同一径であるが、径が異なっていてもよい。該一番目の筒状体１は、筒状体本体１０と、該筒状体本体１０の端部外周面に装着された雌側筒体１１とを備えている。筒状体本体１０は、炭素繊維等の強化繊維にエポキシ樹脂等の熱硬化性樹脂を含浸させたプリプレグをマンドレルに巻回し焼成して形成されたものである。該筒状体本体１０は、主部１０１と、端部に形成されて主部１０１よりも段差部１０２を介して一段小径とされた小径部１０３とを備えている。該小径部１０３の外周面に雌側筒体１１が例えば接着により固定されるが、雌側筒体１１を着脱自在に取付固定する構成としてもよく、そのように着脱自在の構成とすれば雌側筒体１１の交換が容易になる。 <First cylindrical body 1>
The first cylindrical body 1 has substantially the same diameter as the second cylindrical body 2, but the diameter may be different. The first tubular body 1 includes a tubular body main body 10 and a female side tubular body 11 attached to the outer peripheral surface of the end portion of the tubular body main body 10. The cylindrical body body 10 is formed by winding and firing a prepreg obtained by impregnating a reinforcing fiber such as carbon fiber with a thermosetting resin such as an epoxy resin around a mandrel. The cylindrical body main body 10 includes a main portion 101 and a small-diameter portion 103 formed at an end portion and having a smaller diameter than the main portion 101 via a stepped portion 102. The female cylinder 11 is fixed to the outer peripheral surface of the small-diameter portion 103 by, for example, adhesion. However, the female cylinder 11 may be detachably attached and fixed. The side cylinder 11 can be easily replaced.

雌側筒体１１はその一端面が段差部１０２に当接するようにして装着され、雌側筒体１１の外周面と筒状体本体１０の主部１０１の外周面とは略面一となる。即ち、筒状体本体１０の主部１０１の外周面と小径部１０３の外周面との間の段差は、雌側筒体１１の肉厚と略等しい。従って、例えば雌側筒体１１の外周面の模様と筒状体本体１０の主部１０１の外周面の模様を連続するものとすることにより、雌側筒体１１を筒状体本体１０に外装着した構成であっても筒状体本体１０の主部１０１から雌側筒体１１まで外観上、一連の連続性が得られ、一体感のあるデザインとなる。尚、雌側筒体１１の外周面と筒状体本体１０の主部１０１の外周面との間に段差を設けてもよく、その段差を装飾や模様の一つとして利用してもよい。   The female cylinder 11 is mounted such that one end surface thereof is in contact with the stepped portion 102, and the outer peripheral surface of the female cylinder 11 and the outer peripheral surface of the main portion 101 of the cylindrical body 10 are substantially flush. . That is, the step between the outer peripheral surface of the main portion 101 of the cylindrical body main body 10 and the outer peripheral surface of the small diameter portion 103 is substantially equal to the thickness of the female side cylindrical body 11. Therefore, for example, by making the pattern on the outer peripheral surface of the female cylinder 11 and the pattern on the outer peripheral surface of the main portion 101 of the cylindrical main body 10 continuous, the female cylinder 11 is attached to the cylindrical main body 10. Even in the mounted configuration, a series of continuity is obtained from the main part 101 of the cylindrical body main body 10 to the female side cylindrical body 11, and the design has a sense of unity. A step may be provided between the outer peripheral surface of the female cylinder 11 and the outer peripheral surface of the main portion 101 of the cylindrical body 10, and the step may be used as one of decorations and patterns.

雌側筒体１１は、本実施形態では径略一定のストレート筒であって、その外径は筒状体本体１０の主部１０１の外径と略同一とされ、その内径は筒状体本体１０の小径部１０３の外径と略同一とされる。雌側筒体１１は筒状体本体１０の小径部１０３よりも長く、従って、雌側筒体１１の一端側の所定領域は筒状体本体１０の小径部１０３の外側に重なり合った状態にあり、残る他端側の所定領域（残部領域）は筒状体本体１０の小径部１０３から軸線方向に突出した状態にある。筒状体本体１０の小径部１０３から軸線方向に突出した雌側筒体１１の突出領域の長さは任意であるが、少なくとも後述する雄側部材２１の突出部と同じかあるいはそれよりも長く、雄側部材２１の突出部の全長が雌側筒体１１の内側に進入できる長さである。   The female cylinder 11 is a straight cylinder having a substantially constant diameter in this embodiment, and its outer diameter is substantially the same as the outer diameter of the main part 101 of the cylindrical body 10, and the inner diameter thereof is the cylindrical body. The outer diameter of the ten small diameter portions 103 is substantially the same. The female side cylindrical body 11 is longer than the small diameter portion 103 of the cylindrical body main body 10, and therefore, a predetermined region on one end side of the female side cylindrical body 11 overlaps the outside of the small diameter portion 103 of the cylindrical body main body 10. The remaining predetermined region (remaining region) on the other end side is in a state of protruding in the axial direction from the small diameter portion 103 of the cylindrical body main body 10. The length of the protruding region of the female cylinder 11 protruding in the axial direction from the small-diameter portion 103 of the cylindrical body 10 is arbitrary, but is at least the same as or longer than the protruding portion of the male member 21 described later. The full length of the protruding portion of the male side member 21 is a length that can enter the inside of the female side cylinder 11.

雌側筒体１１の内周面には、雄側部材２１の係合凹溝２２と係合可能な係合凸条１２が全周のうちの一箇所のみに形成されている。該係合凸条１２は、軸線方向に直線状に延びて形成されている。係合凸条１２は、筒状体本体１０の小径部１０３から軸線方向に突出した領域に形成されており、筒状体本体１０の小径部１０３に重なり合っている領域には形成されていない。尚、本実施形態では、係合凸条１２は、筒状体本体１０に向かい合った一端面とは反対側の他端面から奥側に向けて延びているが、この他端面から少し奥側に離れた位置から延設されていてもよい。また、雌側筒体１１の内周面のうち、小径部１０３の外側に重なった重なり領域には係合凸条１２が形成されていないことから、その重なり領域の内周面は全周に亘って凹凸のない滑らかな面となっている。但し、雌側筒体１１の全長に亘って係合凸条１２を形成してもよく、その場合には、小径部１０３の全周のうち係合凸条１２が当接する箇所を内側に局所的に変形させるようにしながら小径部１０３に雌側筒体１１を嵌合して装着してもよいし、小径部１０３の外周面に係合凸条１２が係合する係合凹溝を予め形成しておいてもよい。雌側筒体１１の係合凸条１２は断面視（横断面視）弧状に形成されており、雌側筒体１１の内周面から緩やかな立ち上がり角度で内側に向けて立ち上がって形成されている。かかる係合凸条１２の内周面からの立ち上がり形状については更に後述する。   On the inner peripheral surface of the female side cylinder 11, an engagement protrusion 12 that can be engaged with the engagement groove 22 of the male side member 21 is formed at only one place on the entire circumference. The engaging ridge 12 is formed to extend linearly in the axial direction. The engaging ridge 12 is formed in a region protruding in the axial direction from the small diameter portion 103 of the cylindrical body main body 10, and is not formed in a region overlapping the small diameter portion 103 of the cylindrical body main body 10. In the present embodiment, the engaging ridge 12 extends from the other end surface opposite to the one end surface facing the cylindrical body 10 toward the back side, but slightly toward the back side from the other end surface. You may extend from the distant position. Moreover, since the engagement protrusion 12 is not formed in the overlap area | region which overlapped the outer side of the small diameter part 103 among the internal peripheral surfaces of the female side cylinder 11, the internal peripheral surface of the overlap area | region is in a perimeter. It has a smooth surface with no irregularities. However, the engaging ridge 12 may be formed over the entire length of the female side cylinder 11, and in that case, the portion of the entire circumference of the small diameter portion 103 where the engaging ridge 12 abuts is locally inward. The female-side cylinder 11 may be fitted and attached to the small diameter portion 103 while being deformed in an automatic manner, or an engagement groove for engaging the engagement protrusion 12 with the outer peripheral surface of the small diameter portion 103 is previously provided. You may form. The engaging projection 12 of the female side cylinder 11 is formed in an arc shape in cross-sectional view (transverse cross-sectional view), and is formed to rise inward from the inner peripheral surface of the female side cylinder 11 at a moderate rising angle. Yes. The rising shape from the inner peripheral surface of the engaging ridge 12 will be further described later.

雌側筒体１１は任意の材質から構成でき、例えば、筒状体本体１０と同様にプリプレグから形成することもできるが、合成樹脂を射出成形することにより形成することが好ましい。合成樹脂は射出成形に適した種々のものであってよいが、特には長さが１ｍｍ以下の短繊維を混合した合成樹脂が好ましく、更に、その短繊維の長さは特に０．５ｍｍ以下であることが好ましい。短繊維としてはカーボン繊維等であってよい。尚、汎用の筒体を所定長さにカットすると共にその内周面を加工して係合凸条１２を形成してもよい。また、合成樹脂の他、金属を使用してもよいし、竹等の自然素材を用いてもよい。   The female side cylinder 11 can be made of any material, and for example, can be formed from a prepreg in the same manner as the cylindrical body 10, but is preferably formed by injection molding a synthetic resin. The synthetic resin may be various ones suitable for injection molding, but is particularly preferably a synthetic resin in which short fibers having a length of 1 mm or less are mixed, and the length of the short fibers is particularly 0.5 mm or less. Preferably there is. The short fiber may be carbon fiber or the like. Note that the general-purpose cylindrical body may be cut to a predetermined length and the inner peripheral surface thereof may be processed to form the engaging ridge 12. In addition to the synthetic resin, a metal may be used, or a natural material such as bamboo may be used.

＜二番目の筒状体２＞
二番目の筒状体２は、筒状体本体２０と、該筒状体本体２０の端部内周面に装着された雄側部材２１とを備えている。この二番目の筒状体２の筒状体本体２０も、上述した一番目の筒状体１の筒状体本体１０と同様にプリプレグから形成されたものである。該筒状体本体１０は少なくとも端部近傍において径略一定とされている。雄側部材２１は本実施形態では中実状としているが中空状であってもよい。何れにしても雄側部材２１は一番目の筒状体１に挿入される芯材として機能する。雄側部材２１の外径は略一定であって、即ち、雄側部材２１は径略一定のストレート形状であって、その外径は筒状体本体２０の内径と略等しく、雄側部材２１は筒状体本体２０の内周面に例えば接着により固定される。雄側部材２１は、筒状体本体２０の端面から所定長さ突出するように筒状体本体２０に挿入され装着されている。筒状体本体２０の端面から突出した雄側部材２１の突出部が雌側筒体１１に嵌入される。従って、雄側部材２１の突出部の長さは、雌側筒体１１の全長のうち小径部１０３から突出した突出領域の長さ以下とされて、雄側部材２１の突出部の全体が雌側筒体１１に挿入可能に構成されている。 <Second cylindrical body 2>
The second tubular body 2 includes a tubular body main body 20 and a male side member 21 attached to the inner peripheral surface of the end of the tubular body main body 20. The cylindrical body main body 20 of the second cylindrical body 2 is also formed from a prepreg in the same manner as the cylindrical body main body 10 of the first cylindrical body 1 described above. The cylindrical body body 10 has a substantially constant diameter at least near the end. The male member 21 is solid in this embodiment, but may be hollow. In any case, the male side member 21 functions as a core member inserted into the first tubular body 1. The outer diameter of the male side member 21 is substantially constant, that is, the male side member 21 has a straight shape with a substantially constant diameter, and the outer diameter is substantially equal to the inner diameter of the cylindrical body body 20. Is fixed to the inner peripheral surface of the cylindrical body 20 by, for example, adhesion. The male member 21 is inserted and attached to the cylindrical body main body 20 so as to protrude from the end surface of the cylindrical body main body 20 by a predetermined length. The protruding portion of the male side member 21 protruding from the end surface of the cylindrical body main body 20 is fitted into the female side cylindrical body 11. Accordingly, the length of the protruding portion of the male side member 21 is set to be equal to or shorter than the length of the protruding region protruding from the small diameter portion 103 in the entire length of the female side cylindrical body 11, and the entire protruding portion of the male side member 21 is female. The side cylinder 11 is configured to be insertable.

そして、雄側部材２１の外周面には、雌側筒体１１の係合凸条１２と係合可能な係合凹溝２２が全周のうち一箇所のみに形成されている。該係合凹溝２２も係合凸条１２と同様に軸線方向に延びており、本実施形態では、雄側部材２１の全長に亘って形成されているが、少なくとも突出部の全長に亘って形成される。係合凹溝２２は係合凸条１２と軸線方向に沿って係合するため、その横断面形状は係合凸条１２の横断面形状に対応したものとされる。   Then, on the outer peripheral surface of the male member 21, an engaging groove 22 that can be engaged with the engaging protrusion 12 of the female cylinder 11 is formed at only one place in the entire periphery. The engaging groove 22 extends in the axial direction similarly to the engaging ridge 12 and is formed over the entire length of the male side member 21 in the present embodiment, but at least over the entire length of the protruding portion. It is formed. Since the engaging groove 22 engages with the engaging ridge 12 along the axial direction, the cross-sectional shape thereof corresponds to the cross-sectional shape of the engaging ridge 12.

雄側部材２１の材質も任意であるが、雌側筒体１１と同様に各種の合成樹脂や金属を使用でき、射出成形によって形成してもよいし、切削加工等によって形成してもよい。また、射出成形する場合、係合凹溝２２を含めて射出成形してもよいし、その射出成形した後に係合凹溝２２を切削加工により形成してもよい。また、汎用の棒材を所定長さにカットして使用してもよい。   Although the material of the male side member 21 is also arbitrary, various synthetic resins and metals can be used similarly to the female side cylindrical body 11, and may be formed by injection molding or may be formed by cutting or the like. In addition, when injection molding is performed, the injection molding may be performed including the engagement groove 22, or after the injection molding, the engagement groove 22 may be formed by cutting. A general-purpose bar may be cut into a predetermined length and used.

＜連結操作と連結解除操作＞
次に、筒状体１，２同士を連結する際の操作と連結状態について説明する。筒状体１，２同士を連結する際には、一番目の筒状体１の雌側筒体１１に二番目の筒状体２の雄側部材２１の突出部を挿入していく。その際、雌側筒体１１の内周面と雄側部材２１の突出部の外周面にはそれぞれ係合凸条１２と係合凹溝２２が形成されているので、係合凸条１２と係合凹溝２２が互いに係合するように、一番目の筒状体１と二番目の筒状体２の周方向の角度、向きを合わせて、雌側筒体１１に雄側部材２１の突出部を挿入していく。 <Connection operation and connection release operation>
Next, an operation and a connection state when connecting the cylindrical bodies 1 and 2 will be described. When connecting the cylindrical bodies 1 and 2, the protruding portion of the male side member 21 of the second cylindrical body 2 is inserted into the female side cylindrical body 11 of the first cylindrical body 1. At that time, since the engaging ridge 12 and the engaging groove 22 are formed on the inner peripheral surface of the female cylinder 11 and the outer peripheral surface of the protruding portion of the male member 21, respectively, The circumferential angle and direction of the first cylindrical body 1 and the second cylindrical body 2 are matched so that the engaging grooves 22 are engaged with each other, and the male side member 21 is connected to the female side cylindrical body 11. Insert the protrusion.

そして、図３のように雌側筒体１１の端面に二番目の筒状体２の筒状体本体２０の端面が当接するまで挿入する。即ち、釣り人は、雌側筒体１１の端面に二番目の筒状体２の筒状体本体２０の端面が当接するまで挿入操作を行えばよく、常に一定の位置まで容易に挿入することができる。その挿入完了状態から一番目の筒状体１に対して二番目の筒状体２を何れかの方向に向けて軸線回りに相対的に回転させる。図４（ａ）のように雌側筒体１１の内周面と雄側部材２１の突出部の外周面との間には所定のクリアランスが存在している。尚、図４及び図５ではクリアランスを大きく誇張して図示している。このクリアランスは僅かではあるが、そのクリアランスの存在によって相対的に回転させることができる。一番目の筒状体１に対して二番目の筒状体２を回転させると、係合凹溝２２の壁面が係合凸条１２に乗り上げていく。即ち、係合凹溝２２の壁面が係合凸条１２を押すことになるが、その反力によって雄側部材２１の突出部は反対側に押されて雌側筒体１１の内周面に押し付けられることになって所定の摩擦力が発生する。このように一番目の筒状体１に対して二番目の筒状体２を軸線回りに回転させると、いわゆるこじた状態となり、雌側筒体１１の内周面と雄側部材２１の突出部の外周面との間に周方向の摩擦力が発生して、その摩擦力で筒状体１，２同士の連結状態が維持されることになる。   And it inserts until the end surface of the cylindrical body main body 20 of the 2nd cylindrical body 2 contact | abuts to the end surface of the female side cylinder 11 like FIG. That is, the angler only needs to perform the insertion operation until the end surface of the cylindrical body 2 of the second cylindrical body 2 comes into contact with the end surface of the female side cylindrical body 11, and can always easily insert it into a certain position. Can do. From the insertion completion state, the second cylindrical body 2 is rotated relative to the first cylindrical body 1 around the axis in either direction. As shown in FIG. 4A, a predetermined clearance exists between the inner peripheral surface of the female cylinder 11 and the outer peripheral surface of the protruding portion of the male member 21. 4 and 5, the clearance is greatly exaggerated. Although this clearance is slight, it can be rotated relatively by the presence of the clearance. When the second tubular body 2 is rotated with respect to the first tubular body 1, the wall surface of the engaging groove 22 rides on the engaging protrusion 12. That is, the wall surface of the engaging groove 22 pushes the engaging ridge 12, but the protruding portion of the male side member 21 is pushed to the opposite side by the reaction force, and the inner peripheral surface of the female side cylindrical body 11 is pressed. A predetermined frictional force is generated by being pressed. Thus, when the second cylindrical body 2 is rotated around the axis with respect to the first cylindrical body 1, a so-called twisted state is obtained, and the inner peripheral surface of the female side cylindrical body 11 and the protrusion of the male side member 21 are obtained. A frictional force in the circumferential direction is generated between the outer peripheral surface of the part and the connected state between the cylindrical bodies 1 and 2 is maintained by the frictional force.

係合凹溝２２の壁面が係合凸条１２に乗り上げて係合凸条１２を押している連結状態を図５に拡大して示している。直線５０は、係合凹溝２２の壁面と係合凸条１２が当接している接触点Ｔと雌側筒体１１の中心とを結ぶ直線である。直線５１は、直線５０と直交する直線であってその直線５１に沿って係合凹溝２２の壁面から係合凸条１２に力Ｐが作用する。直線５２は、接触点Ｔにおける接線であり、この直線５２と直線５１との間の角度θが小さいほど係合凹溝２２の壁面が係合凸条１２に乗り上げやすくなり、いわゆるこじた状態となりやすい。従って角度θは４５度以下が好ましく、雌側筒体１１の内周面からの係合凸条１２の立ち上がり形状は角度θが４５度以下となるような形状とされることが好ましい。   FIG. 5 shows an enlarged connection state in which the wall surface of the engagement groove 22 rides on the engagement protrusion 12 and pushes the engagement protrusion 12. The straight line 50 is a straight line that connects the wall surface of the engagement groove 22 and the contact point T where the engagement protrusion 12 is in contact with the center of the female cylinder 11. The straight line 51 is a straight line orthogonal to the straight line 50, and a force P acts on the engaging protrusion 12 from the wall surface of the engaging groove 22 along the straight line 51. The straight line 52 is a tangent line at the contact point T. The smaller the angle θ between the straight line 52 and the straight line 51, the easier the wall surface of the engaging groove 22 rides on the engaging ridge 12, and the so-called distorted state is obtained. Cheap. Therefore, the angle θ is preferably 45 degrees or less, and the rising shape of the engaging protrusion 12 from the inner peripheral surface of the female cylinder 11 is preferably a shape such that the angle θ is 45 degrees or less.

一方、連結状態を解除して一番目の筒状体１から二番目の筒状体２を分離する場合には、連結する際に回転した方向とは逆の方向に二番目の筒状体２を回転させて、図４（ａ）の状態に戻し、その後、雄側部材２１を軸線方向にスライドさせて雌側筒体１１から引き抜けばよい。   On the other hand, when the second cylindrical body 2 is separated from the first cylindrical body 1 by releasing the connected state, the second cylindrical body 2 in the direction opposite to the direction rotated when connecting. Is rotated to return to the state of FIG. 4A, and then the male side member 21 is slid in the axial direction and pulled out from the female side cylinder 11.

以上のように構成された連結構造にあっては、図３に示すような連結状態において、雌側筒体１１の端面と二番目の筒状体２の筒状体本体２０の端面とが当接して両者の間に隙間が発生しない。即ち、連結部分に隙間が発生しないので、良好な外観体裁が得られる。また、一番目の筒状体１の筒状体本体１０に小径部１０３を形成してその小径部１０３に雌側筒体１１を外装着しているので、筒状体本体１０の外周面と雌側筒体１１の外周面との間の段差を小さくしたり、あるいは、段差なく略面一としたりすることもできる。従って、連結部分の外観をより一層良好なものとすることができる。   In the connection structure configured as described above, in the connection state as shown in FIG. 3, the end surface of the female cylinder 11 and the end surface of the cylinder body 20 of the second cylinder 2 are in contact with each other. There is no gap between them. That is, since no gap is generated at the connecting portion, a good appearance can be obtained. Moreover, since the small diameter part 103 is formed in the cylindrical body main body 10 of the first cylindrical body 1, and the female side cylindrical body 11 is externally attached to the small diameter part 103, the outer peripheral surface of the cylindrical body main body 10 and The step between the outer peripheral surface of the female cylinder 11 can be reduced, or can be made substantially flush with no step. Therefore, the appearance of the connection portion can be further improved.

また、二番目の筒状体２を一番目の筒状体１に強く差し込む必要はないので、連結操作が楽である。しかも、雌側筒体１１の端面に二番目の筒状体２の筒状体本体２０の端面が当接するまで差し込めばよいので、常に所定位置まで容易に挿入することができる。そして、所定位置まで挿入した後に、少しの回転操作で連結状態を維持することができ、また、逆方向に少し回転させれば連結状態を解除することができて、その状態から楽に抜いて分離することができる。   Further, since it is not necessary to strongly insert the second cylindrical body 2 into the first cylindrical body 1, the connecting operation is easy. Moreover, since it is only necessary to insert until the end surface of the cylindrical body main body 20 of the second cylindrical body 2 comes into contact with the end surface of the female side cylindrical body 11, it can always be easily inserted to a predetermined position. And after inserting to a predetermined position, the connected state can be maintained with a little rotation operation, and the connected state can be released if it is rotated a little in the reverse direction. can do.

更に、筒状体本体１０とは別体の雌側筒体１１の内周面に係合凸条１２を形成するようにしているので、雄側部材２１と雌側筒体１１との間で寸法管理して、良好な操作感覚が得られる雄側部材２１と雌側筒体１１のセットを保管しておいてそのセットを使用して製造することができる。また、外観や質感の異なる雌側筒体１１を種々用意しておけば、筒状体１全体を変更しなくても雌側筒体１１のみ変更することで、容易にバリエーションを増やすことができ、釣り人の好みにあった仕様、カスタマイズにも容易に対応することができる。   Furthermore, since the engaging protrusion 12 is formed on the inner peripheral surface of the female side cylindrical body 11 which is separate from the cylindrical body main body 10, between the male side member 21 and the female side cylindrical body 11. The set of the male side member 21 and the female side cylindrical body 11 that can be dimensionally managed to obtain a good operation feeling can be stored and manufactured using the set. Moreover, if various female side cylinders 11 having different appearances and textures are prepared, it is possible to easily increase variations by changing only the female side cylinder 11 without changing the entire cylindrical body 1. It can easily accommodate specifications and customizations that suit the angler's preference.

尚、雌側筒体１１の形状、特に外周面の形状は目的とする装飾形態に応じて種々変更可能であって、塗装に合わせて雌側筒体１１の外周面に種々の凹凸形状を設けてよい。例えば、雌側筒体１１の外周面に凹部を形成する場合には、全周のうち内周面の係合凸条１２に対応した外周面の位置に凹部を形成することが好ましく、特に、竹の節の芽状に凹部を形成して、連結部分を竹の節のようにすることが好ましい。   The shape of the female side cylinder 11, particularly the shape of the outer peripheral surface, can be variously changed according to the intended decoration form, and various uneven shapes are provided on the outer peripheral surface of the female side cylindrical body 11 according to the coating. It's okay. For example, when forming a recess in the outer peripheral surface of the female cylinder 11, it is preferable to form a recess in the position of the outer peripheral surface corresponding to the engagement protrusion 12 on the inner peripheral surface of the entire periphery. It is preferable to form a recess in the shape of a bamboo knot and make the connecting portion like a bamboo knot.

その一例を図６及び図７に示している。図６のように、雌側筒体１１の内周面に係合凸条１２を形成すると共にその係合凸条１２の形成箇所に対応した外周面の位置に竹の節の芽状の凹部１３を形成する。該竹の節の芽状の凹部１３は、二番目の筒状体２との継合側に向けて徐々にその深さが深くなっている。このような竹の節の芽状の凹部１３を外周面に形成しても、その内側には係合凸条１２が形成されているので、凹部１３の形成箇所の肉厚を容易に確保することができる。尚、この実施形態では、雌側筒体１１の継合側の端部近傍と二番目の筒状体２の筒状体本体２０における継合側の端部近傍とを、端に向かうほど徐々に大径となるように形成して、竹の節の形状に似せている。そして、図６（ｂ）や図７に示しているように、連結状態においては、雌側筒体１１の端面と二番目の筒状体２の筒状体本体２０の端面とが当接して両者の間に隙間が形成されないので、その端面同士が当接する箇所Ｑを竹の節の筋の模様とすることができる。   An example of this is shown in FIGS. As shown in FIG. 6, the engaging ridges 12 are formed on the inner peripheral surface of the female cylindrical body 11, and the bud-like recesses of the bamboo nodes are formed on the outer peripheral surface corresponding to the positions where the engaging ridges 12 are formed. 13 is formed. The bud-like concave portion 13 of the bamboo knot is gradually deepened toward the joining side with the second cylindrical body 2. Even if such a bamboo knot bud-like recess 13 is formed on the outer peripheral surface, the engagement protrusion 12 is formed on the inner side thereof, so that the thickness of the formation portion of the recess 13 is easily ensured. be able to. In this embodiment, the vicinity of the end portion on the joining side of the female side tubular body 11 and the vicinity of the end portion on the joining side in the tubular body main body 20 of the second tubular body 2 are gradually increased toward the end. It is formed to have a large diameter to resemble the shape of a bamboo knot. As shown in FIG. 6B and FIG. 7, in the connected state, the end surface of the female cylinder 11 and the end surface of the cylindrical body main body 20 of the second cylindrical body 2 are in contact with each other. Since no gap is formed between the two, the portion Q where the end faces come into contact with each other can be used as a pattern of bamboo knots.

尚、上記実施形態では、一番目の筒状体１の筒状体本体１０に小径部１０３を設けてその小径部１０３の外周面に雌側筒体１１を装着したが、筒状体本体１０に小径部１０３を設けずに筒状体本体１０の端部近傍を段差のないストレート形状等の形状としてその外周面に雌側筒体１１を装着するようにしてもよい。   In the above-described embodiment, the cylindrical body main body 10 of the first cylindrical body 1 is provided with the small diameter portion 103 and the female side cylindrical body 11 is mounted on the outer peripheral surface of the small diameter portion 103. Without providing the small-diameter portion 103, the vicinity of the end portion of the cylindrical body main body 10 may be formed into a shape such as a straight shape without a step, and the female side cylindrical body 11 may be attached to the outer peripheral surface thereof.

また、雌側筒体１１を筒状体本体１０の外周面に装着するのではなく、図８のように筒状体本体１０の内周面に雌側筒体１１を装着するようにしてもよい。このように筒状体本体１０の内周面に雌側筒体１１を装着する構成では、二番目の筒状体２の筒状体本体２０と雄側部材２１との間には別途筒状のスリーブ２３を介装させてもよい。このスリーブ２３を介装させない場合には、二番目の筒状体２の筒状体本体２０の外径が一番目のそれに対して小径となり、連結部分に段差が生じることになる。その段差を活かす模様、装飾とする場合もあるが、図８に示すようにスリーブ２３を介装させるとその段差をなくして一番目の筒状体１の筒状体本体１０の外周面と二番目の筒状体２の筒状体本体２０の外周面とを略面一とすることができる。一番目の筒状体１の筒状体本体１０の外周面と二番目の筒状体２の筒状体本体２０の外周面とを略面一とするのではなく若干の段差を形成する場合であっても、スリーブ２３を介装させることによって容易にその段差を調節できる。このようにスリーブ２３を介装させることによって、一番目の筒状体１の筒状体本体１０と二番目の筒状体２の筒状体本体２０との間の外径の関係をスリーブ２３の肉厚によって容易に調整することができる。尚、雌側筒体１１を筒状体本体１０の内側に装着する構成では、係合凹溝２２を雌側筒体１１の全長に亘って形成することが好ましく製造が容易になる。   Further, the female side cylinder 11 is not attached to the outer peripheral surface of the cylindrical body main body 10, but the female side cylindrical body 11 is attached to the inner peripheral surface of the cylindrical body main body 10 as shown in FIG. Good. As described above, in the configuration in which the female side cylindrical body 11 is mounted on the inner peripheral surface of the cylindrical body main body 10, a separate cylindrical shape is provided between the cylindrical body main body 20 and the male side member 21 of the second cylindrical body 2. The sleeve 23 may be interposed. When this sleeve 23 is not interposed, the outer diameter of the cylindrical body 20 of the second cylindrical body 2 is smaller than that of the first cylindrical body, and a step is generated at the connecting portion. In some cases, a pattern or decoration that makes use of the step is used, but when the sleeve 23 is interposed as shown in FIG. 8, the step is eliminated and the outer peripheral surface of the cylindrical body main body 10 of the first cylindrical body 1 is removed. The outer peripheral surface of the cylindrical body main body 20 of the second cylindrical body 2 can be made substantially flush. When the outer peripheral surface of the cylindrical body main body 10 of the first cylindrical body 1 and the outer peripheral surface of the cylindrical body main body 20 of the second cylindrical body 2 are not substantially flush but form a slight step. Even so, the step can be easily adjusted by interposing the sleeve 23. By interposing the sleeve 23 in this way, the relationship between the outer diameters of the cylindrical body body 10 of the first cylindrical body 1 and the cylindrical body body 20 of the second cylindrical body 2 can be determined. It can be easily adjusted according to the wall thickness. In addition, in the structure which mounts the female side cylinder 11 inside the cylindrical body main body 10, it is preferable to form the engagement ditch | groove 22 over the full length of the female side cylinder 11, and manufacture becomes easy.

同様に、雌側筒体１１を筒状体本体１０の内側に装着する構成において、図８に示したようなスリーブ２３を介装するのではなく、図９に示すように雄側部材２１を段付きの構成としてもよい。即ち、雄側部材２１が筒状体本体２０の内周面に装着するための主部２１１と該主部２１１よりも小径の雄部２１２とを備えた構成として、該雄部２１２の外周面に係合凹溝２２を形成するようにしてもよい。この場合、雄部２１２と主部２１１との間には段差部２１３が形成されるため、雄部２１２の係合凹溝２２の終端は、製造上、曲面状となって浅くなりやすい。従って、雄部２１２と主部２１１との間の段差部２１３が筒状体本体２０の端面よりも奥まった内側に位置するように雄側部材２１を筒状体本体２０に挿入固定して、係合凹溝２２が完全な深さで形成されている領域のみを突出させてそこに雌側筒体１１の係合凸条１２を係合させるようにして、雌側筒体１１の端面と二番目の筒状体２の筒状体本体２０の端面が隙間なく当接できるようにする。   Similarly, in the configuration in which the female side cylindrical body 11 is mounted inside the cylindrical body main body 10, the male side member 21 is attached as shown in FIG. 9 instead of interposing the sleeve 23 as shown in FIG. It is good also as a stepped structure. That is, the male side member 21 has a main part 211 for mounting on the inner peripheral surface of the cylindrical body 20 and a male part 212 having a smaller diameter than the main part 211, and the outer peripheral surface of the male part 212. The engaging concave groove 22 may be formed in the upper part. In this case, since the step part 213 is formed between the male part 212 and the main part 211, the end of the engaging groove 22 of the male part 212 tends to be shallow due to a curved surface in manufacturing. Therefore, the male side member 21 is inserted and fixed to the cylindrical body main body 20 so that the stepped portion 213 between the male portion 212 and the main portion 211 is located inside the end surface of the cylindrical body main body 20. Only the region where the engaging groove 22 is formed at a full depth is projected so that the engaging ridge 12 of the female cylinder 11 is engaged therewith, and the end surface of the female cylinder 11 and The end surface of the cylindrical body main body 20 of the second cylindrical body 2 can be brought into contact with no gap.

尚、上記実施形態では、雌側筒体１１に係合凸条１２が形成され、雄側部材２１に係合凹溝２２が形成された構成について説明したが、逆であってもよい。即ち、雌側筒体１１に係合凹溝が形成され、雄側部材２１に係合凸条が形成された構成としてもよい。また、係合凹溝２２と係合凸条１２の組が一組のみの場合について説明したが、二組以上形成された構成であってもよい。また、上述したような外周面の凹部１３も一つではなく複数形成してもよい。   In addition, although the said embodiment demonstrated the structure by which the engagement protrusion 12 was formed in the female side cylinder 11, and the engagement ditch | groove 22 was formed in the male side member 21, it may be reverse. That is, it is good also as a structure by which the engagement ditch | groove was formed in the female side cylinder 11, and the engagement protrusion was formed in the male side member 21. FIG. Moreover, although the case where only one set of the engagement groove 22 and the engagement protrusion 12 has been described, two or more sets may be formed. Moreover, you may form not only one but the recessed part 13 of the outer peripheral surface as mentioned above.

また、雌側筒体１１を備える構成について説明したが、雌側筒体１１を設けずに筒状体本体１０の内周面に直接係合凸条や係合凹溝を形成するようにしてもよい。   Moreover, although the structure provided with the female side cylinder 11 was demonstrated, it was made to form an engagement protrusion and an engagement ditch | groove directly in the internal peripheral surface of the cylindrical body main body 10, without providing the female side cylinder 11. FIG. Also good.

また更に、上記実施形態においては竿掛けを例に説明したが、へら釣りに用いられる玉網の柄（玉ノ柄）であってもよい。玉ノ柄もその長さ調整のため、複数の筒状体を連結する構造とされ、その連結部分に上述したような連結構造を採用することができる。   Furthermore, in the above embodiment, the hook has been described as an example, but a ball net pattern (ball pattern) used for spatula fishing may be used. The ball pattern has a structure in which a plurality of cylindrical bodies are connected to adjust the length thereof, and the connecting structure as described above can be adopted for the connecting part.

１ 筒状体
２ 筒状体
３ 筒状体
４ 枕
４ａ 取り付け軸部
４ｂ 二股状部
５ 万力
５ａ 支持軸部
１０ 筒状体本体
１０１ 主部
１０２ 段差部
１０３ 小径部
１１ 雌側筒体
１２ 係合凸条
１３ 凹部
２０ 筒状体本体
２１ 雄側部材
２２ 係合凹溝
２３ スリーブ
２１１ 主部
２１２ 雄部
２１３ 段差部
Ｔ 接触点 DESCRIPTION OF SYMBOLS 1 Tubular body 2 Tubular body 3 Tubular body 4 Pillow 4a Attachment shaft part 4b Bifurcated part 50000 5a Support shaft part 10 Tubular body main part 101 Main part 102 Step part 103 Small diameter part 11 Female side cylinder 12 Engagement Joint protrusion 13 Recess 20 Tubular body 21 Male side member 22 Engaging groove 23 Sleeve 211 Main part 212 Male part 213 Step part T Contact point

Claims (3)

竿掛けや玉ノ柄を構成する第一及び第二の筒状体同士を着脱自在に連結するための構造であって、
第一及び第二の筒状体はそれぞれプリプレグの巻回により形成された筒状体本体を備え、第一の筒状体の筒状体本体には該筒状体本体の端面から所定長さ突出するように雄側部材が挿入固定され、第二の筒状体の筒状体本体の端部に小径部が形成され、該小径部の外周面に雌側筒体が装着されており、第一の筒状体の筒状体本体の端面が雌側筒体の端面に当接するまで雄側部材の突出部は雌側筒体に嵌入可能であり、
雄側部材の突出部の外周面と雌側筒体の内周面のうち一方には軸線方向に延びる係合凹溝が形成され且つ他方には係合凹溝に係合する係合凸条が形成され、
雄側部材の突出部を雌側筒体に嵌入した状態で、雄側部材の突出部の外周面と雌側筒体の内周面との間のクリアランス分、一方の筒状体を他方の筒状体に対して周方向に回転させることにより、雄側部材の突出部の外周面と雌側筒体の内周面との間の周方向の摩擦力で連結状態が維持されるように構成されていることを特徴とする筒状体の連結構造。 It is a structure for detachably connecting the first and second cylindrical bodies constituting the hook and the ball pattern,
Comprising a tubular body formed by the first and second tubular bodies prepreg respectively wound, a predetermined length to the tubular body of the first tubular member from the end face of the cylindrical body The male side member is inserted and fixed so as to protrude, a small diameter portion is formed at the end of the cylindrical body main body of the second cylindrical body, and the female side cylindrical body is mounted on the outer peripheral surface of the small diameter portion, The protruding portion of the male member can be fitted into the female cylinder until the end surface of the cylindrical body of the first cylindrical body abuts the end surface of the female cylinder .
An engaging groove extending in the axial direction is formed on one of the outer peripheral surface of the protruding portion of the male member and the inner peripheral surface of the female cylinder, and the engaging convex groove engaging the engaging groove on the other. Formed,
With the protruding part of the male member inserted into the female cylinder, the amount of the clearance between the outer peripheral surface of the protruding part of the male member and the inner peripheral surface of the female cylinder , By rotating in the circumferential direction with respect to the cylindrical body , the connected state is maintained by the frictional force in the circumferential direction between the outer peripheral surface of the protruding portion of the male side member and the inner peripheral surface of the female side cylindrical body. A connecting structure of cylindrical bodies, characterized in that it is configured. 竿掛けや玉ノ柄を構成する第一及び第二の筒状体同士を着脱自在に連結するための構造であって、
第一及び第二の筒状体はそれぞれプリプレグの巻回により形成された筒状体本体を備え、第一の筒状体の筒状体本体には該筒状体本体の端面から所定長さ突出するように雄側部材が挿入固定され、第二の筒状体の筒状体本体の端部には雌側筒体が装着されており、第一の筒状体の筒状体本体の端面が雌側筒体の端面に当接するまで雄側部材の突出部は雌側筒体に嵌入可能であり、
雄側部材の突出部の外周面には軸線方向に延びる係合凹溝が形成され且つ雌側筒体の内周面には係合凹溝に係合する係合凸条が形成されており、
雄側部材の突出部を雌側筒体に嵌入した状態で、雄側部材の突出部の外周面と雌側筒体の内周面との間のクリアランス分、一方の筒状体を他方の筒状体に対して周方向に回転させることにより、雄側部材の突出部の外周面と雌側筒体の内周面との間の周方向の摩擦力で連結状態が維持されるように構成されており、
係合凸条に対応した雌側筒体の外周面の位置には竹の芽状の凹部が形成され、且つ、第一の筒状体の筒状体本体の端面と雌側筒体の端面が当接する箇所が竹の節の筋の模様とされて、連結部分が竹の節に模されていることを特徴とする筒状体の連結構造。 It is a structure for detachably connecting the first and second cylindrical bodies constituting the hook and the ball pattern,
Comprising a tubular body formed by the first and second tubular bodies prepreg respectively wound, a predetermined length to the tubular body of the first tubular member from the end face of the cylindrical body The male side member is inserted and fixed so as to protrude, and the female side cylindrical body is attached to the end of the cylindrical body main body of the second cylindrical body. protrusion of the male member until the end faces abuts the end surface of the female cylindrical body is fittable to the female side cylindrical body,
An engaging groove extending in the axial direction is formed on the outer peripheral surface of the protruding portion of the male member, and an engaging ridge that engages with the engaging groove is formed on the inner peripheral surface of the female cylinder. ,
With the protruding part of the male member inserted into the female cylinder, the amount of the clearance between the outer peripheral surface of the protruding part of the male member and the inner peripheral surface of the female cylinder , By rotating in the circumferential direction with respect to the cylindrical body , the connected state is maintained by the frictional force in the circumferential direction between the outer peripheral surface of the protruding portion of the male side member and the inner peripheral surface of the female side cylindrical body. Configured ,
At the position of the outer peripheral surface of the female cylinder corresponding to the engaging ridges, a bamboo bud-shaped recess is formed, and the end surface of the cylindrical body of the first cylindrical body and the end surface of the female cylinder The connecting structure of the cylindrical bodies, wherein the portion where the contact is made is a streak pattern of a bamboo knot, and the connecting portion is imitated by a bamboo knot . 雌側筒体の継合側の端部近傍と第一の筒状体の筒状体本体における継合側の端部近傍は、それぞれ端に向かうほど徐々に大径となるように形成されている請求項２記載の筒状体の連結構造。The vicinity of the seam-side end of the female cylinder and the vicinity of the seam-side end of the first cylindrical body are formed so as to gradually increase in diameter toward the end. The connecting structure for cylindrical bodies according to claim 2.
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