JP6080819B2 - Multi-pipe joint coupling member, and multi-pipe joint comprising a base joint member and a coupling joint member - Google Patents

Multi-pipe joint coupling member, and multi-pipe joint comprising a base joint member and a coupling joint member Download PDF

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JP6080819B2
JP6080819B2 JP2014175040A JP2014175040A JP6080819B2 JP 6080819 B2 JP6080819 B2 JP 6080819B2 JP 2014175040 A JP2014175040 A JP 2014175040A JP 2014175040 A JP2014175040 A JP 2014175040A JP 6080819 B2 JP6080819 B2 JP 6080819B2
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北川　浩之
浩之 北川
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Nitto Kohki Co Ltd
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Description

本発明は、複数の流体通路を一括して流体接続するようにした多管継手における連結継手部材、及び基部継手部材と連結継手部材とを備える多管継手に関する。   The present invention relates to a coupling joint member in a multi-pipe joint in which a plurality of fluid passages are fluidly connected together, and a multi-pipe coupling including a base joint member and a coupling joint member.

それぞれに複数の流体通路が設けられた一対の継手部材からなり、これら継手部材同士を互いに連結することによって該複数の流体通路を一括して流体接続するようにした多管継手が知られている。このような多管継手の中には、一方又は両方の継手部材の流体通路にバルブ機構を備える管継手を設けて、非連結状態において加圧流体が外部に漏れないようにしたものがある（特許文献１）。このような多管継手に用いられるバルブ機構を備える管継手は、通常、流体通路内で軸線方向に変位可能に設けられた弁体をスプリングによって付勢し流体通路の内周面の弁座部に押しつけて流路を閉止するようになっている。そして、一対の継手部材を互いに連結したときに、一方の継手部材に設けられた管継手の弁体が他方の継手部材に設けられた管継手によってスプリングの付勢力に抗して軸線方向に押圧されて開放位置となり流体通路が連通した状態となるようになっている。また、流路内に圧力がかかっているときにはその圧力に抗して弁体を押圧しなければならない。そのため、このような弁体の開放を伴う一対の継手部材の連結操作には大きな力が必要となる。従って、通常は、これら一対の継手部材にはそれらを相互に近づけるためのカム機構が設けられており、連結に当たっては、一方の継手部材を他方の継手部材に軸線方向で整合した状態で係合し、該一方の継手部材を他方の継手部材に対して相対的に回動することにより、カム機構の作用の下、それら継手部材が相互に近づけるようにしている。   There is known a multi-pipe joint which is composed of a pair of joint members each provided with a plurality of fluid passages, and these joint members are connected to each other so as to fluidly connect the plurality of fluid passages collectively. . Among such multi-pipe joints, there is one in which a pipe joint provided with a valve mechanism is provided in the fluid passage of one or both joint members so that pressurized fluid does not leak to the outside in an unconnected state ( Patent Document 1). A pipe joint having a valve mechanism used for such a multi-pipe joint usually has a valve seat urged by a spring on a valve body that is displaceable in the axial direction within the fluid passage. To close the flow path. When the pair of joint members are connected to each other, the valve body of the pipe joint provided on one joint member is pressed in the axial direction against the biasing force of the spring by the pipe joint provided on the other joint member. Thus, the fluid passage is communicated with the open position. Further, when pressure is applied in the flow path, the valve body must be pressed against the pressure. Therefore, a large force is required for the connection operation of the pair of joint members that accompanies the opening of the valve body. Therefore, these pair of joint members are usually provided with a cam mechanism for bringing them close to each other. When connecting, one joint member is engaged with the other joint member in an axially aligned state. Then, by rotating the one joint member relative to the other joint member, the joint members are brought close to each other under the action of the cam mechanism.

米国特許第６，７９９，６０５号US Pat. No. 6,799,605

このような従来の多管継手におけるバルブ機構を備える管継手は、上述のように、弁体が軸線方向に変位し、またその弁体を軸線方向で付勢支持するスプリングを有する構造となっているため、必然的に軸線方向に長いものとなる。更に上述のようなカム機構は軸線方向での変位を生じさせるものであるために同方向でのサイズが大きくなり、またカム機構を作用させるように一方の継手部材を他方の継手部材に対して回動するためのレバーなどの作動部材により、当該多管継手のサイズは幅方向でも大きなものとなっていた。   As described above, the pipe joint including the valve mechanism in such a conventional multi-pipe joint has a structure in which the valve body is displaced in the axial direction and has a spring that biases and supports the valve body in the axial direction. Therefore, it is necessarily long in the axial direction. Further, since the cam mechanism as described above causes displacement in the axial direction, the size in the same direction is increased, and one joint member is moved with respect to the other joint member so as to act the cam mechanism. Due to an operating member such as a lever for rotating, the size of the multi-pipe joint is large even in the width direction.

そこで本発明は、バルブ機能を備えながらも小型化が可能となる多管継手を提供することを目的とする。   Therefore, an object of the present invention is to provide a multi-pipe joint that can be downsized while having a valve function.

すなわち本発明は、
複数の基部流路が設けられた基部継手部材に取り外し可能に連結された状態で前記複数の基部流路にそれぞれ選択的に流体接続される複数の接続流路を有する、多管継手の連結継手部材であって、
前記複数の接続流路を有する本体部と、
複数の中間流路を有し、前記本体部に対して回動中心軸線の周りで相対的に回動可能に取付けられた回動部材であって、各中間流路の一端が対応する前記接続流路の一端に流体接続されて前記中間流路と対応する前記接続流路とが連通する連通位置と、各中間流路の前記一端と対応する前記接続流路の前記一端との流体接続が解除されて前記接続流路が閉止される閉止位置との間で回動可能とされた回動部材と、を備えており、
各中間流路の他端が対応する前記基部流路の一端に流体接続されるようにして当該連結継手部材を前記基部継手部材に連結したときに、前記回動部材が前記基部継手部材に対して回動しないように該基部継手部材に係合した状態となり、該係合した状態で前記本体部を前記基部継手部材に対して相対的に回動させることにより、前記回動部材が前記連通位置と前記閉止位置との間で回動するようにされた、多管継手の連結継手部材を提供する。 That is, the present invention
A multi-joint coupling joint having a plurality of connection flow paths that are selectively fluidly connected to the plurality of base flow paths in a state where the base joint member is detachably coupled to a base joint member provided with a plurality of base flow paths. A member,
A main body having the plurality of connection channels;
A rotation member having a plurality of intermediate flow paths and attached to the main body portion so as to be relatively rotatable around a rotation center axis, wherein one end of each intermediate flow path corresponds to the connection member A fluid connection between one end of the flow path and a connection position where the connection flow path corresponding to the intermediate flow path communicates with the one end of the connection flow path corresponding to the one end of each intermediate flow path. A rotation member that is rotatable and can be rotated between a closed position where the connection flow path is closed, and
When the connecting joint member is connected to the base joint member in such a manner that the other end of each intermediate flow path is fluidly connected to one end of the corresponding base flow path, the rotating member is connected to the base joint member. The base member is engaged with the base joint member so as not to rotate, and the main body is rotated relative to the base joint member in the engaged state, whereby the rotational member is connected to the communication member. A multi-pipe coupling coupling member is provided that is pivotable between a position and a closed position.

当該多管継手の連結継手部材においては、回動部材を回動させることによって中間流路に対する接続流路の連通状態と閉止状態とを操作するようになっているので、上述の従来の多管継手のように流路の軸線方向で可動する弁体等の機構がない構造とすることができる。また、上述の従来の多管継手における弁体の開放操作に相当する閉止状態から連通状態への操作は、回動部材の回動により行うことができるために、従来の多管継手におけるカム機構を必要としない。従って、当該多管継手は、従来の多管継手に対して軸線方向での小型化が可能となる。更に、カム機構において必要とされた継手部材回動のためのレバーなどの作動部材も必要としないため幅方向での小型化も可能となる。   In the connecting joint member of the multi-pipe joint, the connecting state and the closed state of the connecting flow path with respect to the intermediate flow path are operated by rotating the rotating member. It can be set as the structure without mechanisms, such as a valve body which moves in the axial direction of a flow path like a coupling. In addition, since the operation from the closed state to the communication state corresponding to the opening operation of the valve body in the above-described conventional multi-tube joint can be performed by the rotation of the rotating member, the cam mechanism in the conventional multi-tube joint Do not need. Therefore, the multi-pipe joint can be downsized in the axial direction relative to the conventional multi-pipe joint. Further, since an operation member such as a lever for rotating the joint member required in the cam mechanism is not required, the size in the width direction can be reduced.

好ましくは、前記連結継手部材の前記本体部上において前記接続流路の前記一端を囲むように配置され、前記回動部材と摺動可能に密封係合する摺動シール部材をさらに有し、前記回動部材が閉止位置となったときに前記接続流路の前記一端が前記摺動シール部材を介して前記回動部材によって閉止されるようにすることができる。   Preferably, the coupling joint member further includes a sliding seal member disposed so as to surround the one end of the connection flow path on the main body portion and slidably and slidably engages with the rotating member, The one end of the connection flow path can be closed by the rotating member via the sliding seal member when the rotating member is in the closed position.

また好ましくは、前記本体部から前記回動中心軸線と平行に延びる軸部と、該軸部に連接した頭部とを有する保持部材をさらに備えており、
前記回動部材が、該回動部材の回動方向に沿って延びる円弧状のスロット穴と、該回動部材の前記本体部に面する側とは反対の側で、前記スロット穴に沿って設けられた摺動面と、を有し、
前記保持部材の前記軸部が前記スロット穴を貫通して延びており、
前記保持部材の前記頭部が、前記スロット穴の幅よりも大きな幅を有し、前記摺動面と摺動係合して該回動部材が前記本体部から離れる方向で変位しないように保持しているようにすることができる。 Preferably, the apparatus further includes a holding member having a shaft portion extending in parallel with the rotation center axis from the main body portion and a head portion connected to the shaft portion,
The rotating member has an arcuate slot hole extending along the rotating direction of the rotating member, and the side opposite to the side facing the main body of the rotating member, along the slot hole. A sliding surface provided,
The shaft portion of the holding member extends through the slot hole;
The head portion of the holding member has a width larger than the width of the slot hole, and is held so as not to be displaced in a direction away from the main body portion by slidingly engaging with the sliding surface. Can be like that.

好ましくは、前記保持部材の前記軸部は、前記回動部材が前記連通位置にまで回動されたときに前記スロット穴の一端に当接して前記回動部材が前記連通位置を超えて回動しないようにし、前記回動部材が前記閉止位置にまで回動されたときに前記スロット穴の他端に当接して前記回動部材が前記閉止位置を超えて回動しないようにすることができる。   Preferably, the shaft portion of the holding member abuts against one end of the slot hole when the rotation member is rotated to the communication position, and the rotation member rotates beyond the communication position. When the rotating member is rotated to the closed position, the rotating member can be brought into contact with the other end of the slot hole so that the rotating member does not rotate beyond the closed position. .

このように回動部材の回動範囲を連通位置と閉止位置との間に制限することで、対応していない接続流路と中間流路とが間違って連通した状態となることを防止することができる。   In this way, by restricting the rotation range of the rotation member between the communication position and the closed position, it is possible to prevent the connection flow path and the intermediate flow path that are not compatible from communicating with each other by mistake. Can do.

具体的には、前記本体部が、前記接続流路が前記回転中心軸線と平行な方向に貫通するように設けられている接続流路構成部と、該接続流路構成部から伸び、前記回動中心軸線を中心軸線とする円形の内周面を有する筒状壁とを有し、
前記回動部材が、前記内周面内に設定された、前記回動中心軸線を中心軸線とする円盤状の部材とされ、
前記中間流路が、前記回動部材を前記回動中心軸線と平行な方向に貫通して延びているようにすることができる。 Specifically, the main body extends from the connection flow path configuration section, the connection flow path configuration section provided so that the connection flow path penetrates in a direction parallel to the rotation center axis, and the circuit A cylindrical wall having a circular inner peripheral surface with the moving central axis as the central axis,
The rotating member is a disc-shaped member set in the inner peripheral surface and having the rotating central axis as a central axis,
The intermediate flow path may extend through the rotation member in a direction parallel to the rotation center axis.

また具体的には、前記基部継手部材が、前記複数の基部流路を有する円柱状部を有しており、
前記連結継手部材を前記基部継手部材に連結したときに、前記連結継手部材の前記筒状壁が前記基部継手部材の前記円柱状部と同心状となって前記円柱状部の円周側面を覆うようにされ、
前記基部継手部材の前記円柱状部が、該円柱状部の軸線の方向で前記円周側面上に延びる軸線方向ガイド要素を有し、
前記連結継手部材の前記筒状壁が、該筒状壁の前記内周面に設けられた被ガイド要素を有しており、
前記被ガイド要素は、前記回動部材が前記閉止位置にあり且つ各中間流路の前記他端が対応する前記基部流路の前記一端に前記回動中心軸線の方向で整合しているときに、前記軸線方向ガイド要素と前記回動中心軸線の方向で整合する位置に配置されているようにすることができる。 More specifically, the base joint member has a cylindrical portion having the plurality of base flow paths,
When the connection joint member is connected to the base joint member, the cylindrical wall of the connection joint member is concentric with the columnar part of the base joint member and covers the circumferential side surface of the columnar part. Was
The cylindrical portion of the base joint member has an axial guide element extending on the circumferential side in the direction of the axis of the cylindrical portion;
The cylindrical wall of the coupling joint member has a guided element provided on the inner peripheral surface of the cylindrical wall;
The guided element is configured such that the rotating member is in the closed position and the other end of each intermediate channel is aligned with the one end of the corresponding base channel in the direction of the rotation center axis. The axial direction guide element can be arranged at a position aligned with the direction of the rotation center axis.

このような構成により、被ガイド要素が軸線方向ガイド要素に案内されるように当該連結継手部材を基部継手部材に対して位置決めして連結すれば、それによって各中間流路が対応する基部流路と正しく流体接続されるようになるので、対応しない中間流路と基部流路とが誤って接続されることを防止することが可能となる。   With such a configuration, if the connecting joint member is positioned and connected to the base joint member so that the guided element is guided by the axial guide element, each intermediate flow path thereby corresponds to the corresponding base flow path. Therefore, it is possible to prevent the incompatible intermediate flow path and the base flow path from being erroneously connected.

好ましくは、前記基部継手部材の前記円柱状部の円周側面が、前記軸線方向ガイド要素に連続して周方向に延びる周方向ガイド要素を有しており、
前記回動部材が前記基部継手部材に対して回動しないように該基部継手部材に係合した状態で前記本体部を前記基部継手部材に対して相対的に回動したときに、前記被ガイド要素が前記周方向ガイド要素に沿って案内されると共に、少なくとも前記回動部材が前記連通位置にあるときには該被ガイド要素が前記周方向ガイド要素に係合して、当該連結継手部材が前記基部継手部材から前記回動中心軸線の方向で離れないようになるようにすることができる。 Preferably, the circumferential side surface of the cylindrical portion of the base joint member has a circumferential guide element that extends in the circumferential direction continuously to the axial guide element,
When the main body is rotated relative to the base joint member in a state of being engaged with the base joint member so that the rotation member does not rotate with respect to the base joint member, the guided member An element is guided along the circumferential guide element, and at least when the rotating member is in the communication position, the guided element is engaged with the circumferential guide element, and the coupling joint member is The joint member can be prevented from leaving in the direction of the rotation center axis.

連結継手部材を基部継手部材に連結して回動部材を連通位置とした状態で各流路内を圧縮流体が流れると継手部材間に互いに離れる方向の反発力が働くことになるが、当該連結継手部材においては、そのような状態において被ガイド要素が周方向ガイド要素に係合して連結継手部材と基部継手部材とが回動中心軸線の方向で互いに離れないようになるので、連結継手部材が圧縮流体の圧力によって吹き飛ばされることを防止することが可能となる。   When compressed fluid flows in each flow path in a state where the connecting joint member is connected to the base joint member and the rotating member is in the communication position, a repulsive force in a direction away from each other acts between the joint members. In the joint member, since the guided element engages with the circumferential guide element in such a state, the connection joint member and the base joint member are not separated from each other in the direction of the rotation center axis. Can be prevented from being blown off by the pressure of the compressed fluid.

好ましくは、前記筒状壁が、該筒状壁の前記内周面から半径方向内側に突出するようにバネ付勢された回動固定部材を備えており、該回動固定部材は、当該連結継手部材を前記基部継手部材に連結するときに前記円柱状部に係合して半径方向外側に変位され、前記本体部を前記基部継手部材に対して相対的に回動して前記回動部材が前記連通位置とされたときに、前記円周側面に設けられた施錠凹部と半径方向で整合して半径方向内側に変位して該施錠凹部に係合し、前記本体部の前記基部継手部材に対する相対的回動を阻止するようにすることができる。   Preferably, the cylindrical wall includes a rotation fixing member that is spring-biased so as to protrude radially inward from the inner peripheral surface of the cylindrical wall, and the rotation fixing member is connected to the connection wall. When the joint member is connected to the base joint member, it engages with the columnar part and is displaced radially outward, and the main body part is rotated relative to the base joint member to rotate the rotating member. When the position is in the communication position, it is radially aligned with the locking recess provided on the circumferential side surface and displaced radially inward to engage with the locking recess, and the base joint member of the main body portion The relative rotation with respect to can be prevented.

このような構成によって、本体部が不用意に回動されて連通状態から閉止状態へと移行してしまうのを防止することが可能となる。   With such a configuration, it is possible to prevent the main body from being inadvertently rotated and shifting from the communication state to the closed state.

具体的には、前記軸線方向ガイド要素が、前記円柱状部の前記軸線の方向に延びるように前記円周側面に形成された軸線方向溝であり、前記周方向ガイド要素が前記円周方向に延びるように前記円周側面に形成された周方向溝であり、前記施錠凹部が前記軸線方向溝により構成されているようにすることができる。   Specifically, the axial guide element is an axial groove formed on the circumferential side surface so as to extend in the axial direction of the cylindrical portion, and the circumferential guide element extends in the circumferential direction. It is a circumferential groove formed on the circumferential side surface so as to extend, and the locking recess can be constituted by the axial groove.

さらに具体的には、前記回動部材が、前記本体部から離れる方向に突出する複数の筒状部を有し、前記中間流路が前記筒状部の内周面によって構成されるようにされ、
当該連結継手部材を前記基部継手部材に連結したときに、各筒状部が対応する前記基部流路内に挿入されて該基部流路と係合し、それにより前記回動部材が前記基部継手部材に対して回動しないようになるようにすることができる。 More specifically, the rotating member has a plurality of cylindrical portions protruding in a direction away from the main body portion, and the intermediate flow path is configured by an inner peripheral surface of the cylindrical portion. ,
When the connecting joint member is connected to the base joint member, each tubular portion is inserted into the corresponding base flow path and engages with the base flow path, whereby the rotating member is connected to the base joint. It can prevent it from rotating with respect to a member.

本発明はさらに、
前記複数の基部流路が設けられた前記基部継手部材と、
該基部継手部材に取り外し可能に連結される上記連結継手部材と、
を備える多管継手を提供する。 The present invention further includes
The base joint member provided with the plurality of base flow paths;
The coupling joint member removably coupled to the base coupling member;
A multi-pipe joint is provided.

好ましくは、
前記本体部が、前記接続流路が前記回転中心軸線と平行な方向に貫通するように設けられている接続流路構成部と、該接続流路構成部から伸び、前記回動中心軸線を中心軸線とする円形の内周面を有する筒状壁とを有し、
前記回動部材が、前記内周面内に設定された、前記回動中心軸線を中心軸線とする円盤状の部材とされ、
前記中間流路が、前記回動部材を前記回動中心軸線と平行な方向に貫通して延びており、
前記連結継手部材が、前記本体部から前記内周面の前記軸線の方向に延びる軸部と、該軸部に連接した頭部とを有する保持部材をさらに備えており、
前記回動部材が、前記内周面の前記軸線を中心とした円弧状のスロット穴を有し、
前記保持部材の前記軸部は、前記スロット穴を貫通して延びていて、前記回動部材が前記連通位置にまで回動されたときに前記スロット穴の一端に当接して前記回動部材が前記連通位置を超えて回動しないようにし、前記回動部材が前記閉止位置にまで回動されたときに前記スロット穴の他端に当接して前記回動部材が前記閉止位置を超えて回動しないようにし、
前記保持部材の前記頭部は、前記スロット穴の幅よりも大きな幅を有し、前記内周面の前記軸線の方向で前記回動部材に係合して該回動部材が前記本体部から離れないように保持しており、
前記基部継手部材が、前記複数の基部流路を有する円柱状部を有しており、
前記連結継手部材を前記基部継手部材に連結したときに、前記連結継手部材の前記筒状壁の前記内周面が前記基部継手部材の前記円柱状部と同心状となって前記円柱状部の円周側面を覆うようにされ、
前記基部継手部材の前記円柱状部が、該円柱状部の軸線の方向で前記円周側面上に延びる軸線方向ガイド要素と、該軸線方向ガイド要素に連続して周方向に延びる周方向ガイド要素とを有し、前記連結継手部材の前記筒状壁が、該筒状壁の前記内周面に設けられた被ガイド要素を有し、該被ガイド要素は、前記回動部材が前記閉止位置にあり且つ各中間流路の前記他端が対応する前記基部流路の前記一端に前記内周面の軸線の方向で整合しているときに、前記軸線方向ガイド要素と前記内周面の軸線の方向で整合する位置に配置されており、前記被ガイド要素はさらに前記回動部材が前記基部継手部材に対して回動しないように該基部継手部材に係合した状態で前記本体部を前記基部継手部材に対して相対的に回動したときに、前記周方向ガイド要素に沿って案内されると共に、前記回動部材が少なくとも前記連通位置にあるときに前記周方向ガイド要素に係合して、前記連結継手部材が前記基部継手部材から前記内周面の前記軸線の方向で離れないようにするようになるようにすることができる。 Preferably,
The main body extends from the connection flow path component and is connected to the connection flow path component so that the connection flow path extends in a direction parallel to the rotation center axis, and the rotation center axis is the center. A cylindrical wall having a circular inner peripheral surface as an axis,
The rotating member is a disc-shaped member set in the inner peripheral surface and having the rotating central axis as a central axis,
The intermediate flow path extends through the turning member in a direction parallel to the turning center axis,
The connecting joint member further includes a holding member having a shaft portion extending from the main body portion in the direction of the axis of the inner peripheral surface, and a head portion connected to the shaft portion;
The rotating member has an arc-shaped slot hole centered on the axis of the inner peripheral surface;
The shaft portion of the holding member extends through the slot hole, and contacts the one end of the slot hole when the rotating member is rotated to the communication position. The rotating member is prevented from rotating beyond the communication position, and when the rotating member is rotated to the closed position, the rotating member abuts against the other end of the slot hole and rotates beyond the closed position. Do n’t move,
The head portion of the holding member has a width larger than the width of the slot hole, and engages with the rotating member in the direction of the axis of the inner peripheral surface so that the rotating member is separated from the main body portion. And keep it away.
The base joint member has a cylindrical portion having the plurality of base flow paths;
When the coupling joint member is coupled to the base joint member, the inner peripheral surface of the cylindrical wall of the coupling joint member is concentric with the columnar section of the base coupling member. Is to cover the circumferential side,
The cylindrical portion of the base joint member has an axial guide element extending on the circumferential side surface in the direction of the axis of the cylindrical portion, and a circumferential guide element extending in the circumferential direction continuously to the axial guide element. The cylindrical wall of the coupling joint member has a guided element provided on the inner peripheral surface of the cylindrical wall, and the guided element has the rotating member in the closed position. And the other end of each intermediate channel is aligned with the one end of the corresponding base channel in the direction of the axis of the inner peripheral surface, and the axial guide element and the axis of the inner peripheral surface And the guided element further engages the base joint member so that the pivot member does not pivot relative to the base joint member. When the relative rotation with respect to the base joint member, And the guide member is engaged with the circumferential guide element when the rotating member is at least in the communication position, and the connecting joint member is moved from the base joint member to the inner peripheral surface. It can be arranged not to leave in the direction of the axis.

また好ましくは、
前記軸線方向ガイド要素が、前記円柱状部の前記軸線の方向に延びるように前記円周側面に形成された軸線方向溝であり、前記周方向ガイド要素が前記円周方向に延びるように前記円周側面に形成された周方向溝であり、
前記筒状壁が、該筒状壁の前記内周面から半径方向内側に突出するようにバネ付勢された回動固定部材を備えており、該回動固定部材は、前記連結継手部材を前記基部継手部材に連結するときに前記円柱状部に係合して半径方向外側に変位され、前記本体部を前記基部継手部材に対して相対的に回動して前記回動部材が前記連通位置とされたときに、前記円周側面に設けられた前記軸線方向溝と半径方向で整合して半径方向内側に変位して該軸線方向溝に係合し、前記本体部の前記基部継手部材に対する相対的回動を阻止するようにすることができる。 Also preferably,
The axial guide element is an axial groove formed in the circumferential side surface so as to extend in the axial direction of the cylindrical portion, and the circular guide element extends in the circumferential direction. A circumferential groove formed in the peripheral side surface,
The cylindrical wall includes a rotation fixing member that is spring-biased so as to protrude radially inward from the inner peripheral surface of the cylindrical wall, and the rotation fixing member includes the coupling joint member. When connecting to the base joint member, it engages with the cylindrical portion and is displaced radially outward, and the main body is rotated relative to the base joint member so that the rotating member communicates with the base joint member. The base joint member of the main body portion is aligned with the axial groove provided on the circumferential side surface in the radial direction and displaced inward in the radial direction when engaged. The relative rotation with respect to can be prevented.

さらに好ましくは、前記回動部材が、前記連結継手部材の前記本体部から離れる方向に突出する複数の筒状部を有し、前記中間流路が前記筒状部の内周面によって構成されるようにされ、
前記連結継手部材を前記基部継手部材に連結したときに、各筒状部が対応する前記基部流路内に挿入されて該基部流路と係合し、それにより前記回動部材が前記基部継手部材に対して回動しないようにすることができる。 More preferably, the rotating member has a plurality of cylindrical portions protruding in a direction away from the main body portion of the coupling joint member, and the intermediate flow path is configured by an inner peripheral surface of the cylindrical portion. Was
When the connecting joint member is connected to the base joint member, each tubular portion is inserted into the corresponding base flow path and engages with the base flow path, whereby the rotating member is connected to the base joint. It can be prevented from rotating with respect to the member.

さらに好ましくは、前記基部流路の内周面上に設けられた軸シール部材をさらに備え、前記回動部材の前記筒状部の外周面と前記基部流路の内周面とが前記軸シール部材を介して密封係合されるようにすることができる。   More preferably, it further includes a shaft seal member provided on the inner peripheral surface of the base channel, and the outer peripheral surface of the cylindrical portion of the rotating member and the inner peripheral surface of the base channel are the shaft seals. The member can be hermetically engaged through the member.

以下、本発明に係る多管継手の実施形態を添付図面に基づき説明する。   Hereinafter, an embodiment of a multi-pipe joint according to the present invention will be described with reference to the accompanying drawings.

本発明の実施形態に係る多管継手の部分断面図である。It is a fragmentary sectional view of the multi-tubular joint concerning the embodiment of the present invention. 図１の多管継手の基部継手部材の上面図である。It is a top view of the base joint member of the multi-pipe joint of FIG. 図２Ａの基部継手部材の正面図である。It is a front view of the base joint member of FIG. 2A. 図２Ａの基部継手部材の下面図である。It is a bottom view of the base joint member of FIG. 2A. 図２Ａの基部継手部材の右側面図である。It is a right view of the base joint member of FIG. 2A. 図２Ａの基部継手部材のＡ−Ａ線における側面断面図である。It is side surface sectional drawing in the AA of the base joint member of FIG. 2A. 図１の多管継手の連結継手部材の上面図である。FIG. 2 is a top view of a connecting joint member of the multi-pipe joint of FIG. 1. 図３Ａの連結継手部材の正面図である。It is a front view of the coupling joint member of FIG. 3A. 図３Ａの連結継手部材の回動部材が閉止位置にあるときの下面図である。It is a bottom view when the rotation member of the coupling joint member of FIG. 3A exists in a closed position. 図３Ａの連結継手部材の右側面図である。FIG. 3B is a right side view of the coupling joint member of FIG. 3A. 図３Ａの連結継手部材の回動部材が閉止位置にあるときのＢ−Ｂ線における側面断面図である。It is side surface sectional drawing in the BB line when the rotation member of the connection coupling member of FIG. 3A exists in a closed position. 図３Ａの連結継手部材の回動部材が連通位置にあるときのＢ−Ｂ線における側面断面図である。It is side surface sectional drawing in the BB line when the rotation member of the connection coupling member of FIG. 3A exists in a communicating position. 図３ＣのＣ−Ｃ線における断面図である。It is sectional drawing in the CC line of FIG. 3C. 回動部材が閉止位置にあるときの多管継手の上面図である。It is a top view of a multi-pipe joint when a rotation member exists in a closed position. 回動部材が連通位置にあるときの多管継手の上面図である。It is a top view of a multi-pipe joint when a rotation member exists in a communicating position. 図４ＡのＤ−Ｄ線における連結前の状態の多管継手の断面図である。FIG. 4B is a cross-sectional view of the multi-pipe joint in a state before connection in line DD in FIG. 4A. 図５Ａの多管継手の連結後において回動部材が閉止位置にある状態の断面図である。FIG. 5B is a cross-sectional view of the state where the rotating member is in the closed position after the connection of the multi-pipe joint of FIG. 図４ＢのＥ−Ｅ線における断面図であって、図５Ｂの多管継手の回動部材が連通位置にある状態の図である。It is sectional drawing in the EE line of FIG. 4B, Comprising: It is a figure of the state which has the rotation member of the multi-tube coupling of FIG. 5B in a communicating position. 図４ＡのＦ−Ｆ線における連結前の状態の部分断面図である。ただし、構造を明瞭に示すために回動固定部材は断面にしていない。It is a fragmentary sectional view of the state before the connection in the FF line of FIG. 4A. However, in order to clearly show the structure, the rotation fixing member is not cross-sectional. 図４ＡのＦ−Ｆ線における連結後に回動部材が閉止位置にある状態の部分断面図である。ただし、構造を明瞭に示すために回動固定部材は断面にしていない。It is a fragmentary sectional view in the state where a rotation member exists in a closed position after connection in the FF line of Drawing 4A. However, in order to clearly show the structure, the rotation fixing member is not cross-sectional. 図４ＢのＧ−Ｇ線における部分断面図であって、回動部材が連通位置にある状態の部分断面図である。ただし、構造を明瞭に示すために回動固定部材は断面にしていない。It is the fragmentary sectional view in the GG line of Drawing 4B, Comprising: It is a fragmentary sectional view in the state where a rotation member exists in a communicating position. However, in order to clearly show the structure, the rotation fixing member is not cross-sectional.

本発明の実施形態に係る多管継手１は、図１に示すように、複数の基部流路１２を有する基部継手部材１０と、複数の接続流路４２を有する連結継手部材４０とからなり、後述するように、互いに連結された状態で連結継手部材４０の本体部４８を基部継手部材１０に対して相対的に回動することにより、各接続流路４２がそれに対応する基部流路１２に選択的に流体接続した連通状態（図１、図５Ｃ）と、各接続流路４２と対応する基部流路１２との接続が解除されて接続流路４２が閉止された閉止状態（図５Ｂ）との間で変位することができるようになっている。   As shown in FIG. 1, the multi-tube joint 1 according to the embodiment of the present invention includes a base joint member 10 having a plurality of base flow paths 12 and a coupling joint member 40 having a plurality of connection flow paths 42. As will be described later, by rotating the main body portion 48 of the coupling joint member 40 relative to the base joint member 10 in a state of being coupled to each other, each connection flow path 42 is changed to the corresponding base flow path 12. A communication state (FIGS. 1 and 5C) in which the fluid is selectively connected, and a closed state (FIG. 5B) in which the connection channel 42 is closed by releasing the connection between each connection channel 42 and the corresponding base channel 12. It can be displaced between.

図２Ａ乃至図２Ｅに示す基部継手部材１０は、図２Ｂ、図２Ｄ、及び図２Ｅで見て下側に位置する基台１４と、その上側にネジ１６（図２Ａ）で固定された円形の上部板１８と、基台１４内に保持された管継手部材２０とを有する。管継手部材２０は、図２Ｃに示すような配置で１２個設けられており、各管継手部材２０の管接続部２０ａ（図２Ｅ）には（図示しない）配管チューブが接続できるようになっている。上部板１８には、各管継手部材２０の貫通孔２０ｂと該貫通孔２０ｂの軸線の方向で整合する位置に該上部板１８を貫通して延びる受入孔２２が設けられていて、各管継手部材２０の貫通孔２０ｂとそれに対応する受入孔２２とにより複数の基部流路１２が構成されるようになっている。   The base joint member 10 shown in FIGS. 2A to 2E has a circular base 14 fixed with screws 16 (FIG. 2A) and a base 14 positioned on the lower side as viewed in FIGS. 2B, 2D, and 2E. It has an upper plate 18 and a pipe joint member 20 held in the base 14. Twelve pipe joint members 20 are provided in an arrangement as shown in FIG. 2C, and a pipe tube (not shown) can be connected to the pipe connection portion 20a (FIG. 2E) of each pipe joint member 20. Yes. The upper plate 18 is provided with a receiving hole 22 extending through the upper plate 18 at a position aligned with the through hole 20b of each pipe joint member 20 in the direction of the axis of the through hole 20b. A plurality of base flow paths 12 are configured by the through holes 20b of the member 20 and the receiving holes 22 corresponding thereto.

基部継手部材１０は、基台１４の円形状の部分と上部板１８とにより構成される円柱状部２４と、この円柱状部２４から側方に延びる略正方形の板状部２６とを有する形状とされている。板状部２６の四隅には取付穴２８が設けられており、当該基部継手部材１０はこの取付穴２８に通したボルト等によって他の装置等に固定できるようになっている。円柱状部２４の円周側面３０には、図２Ｄに示すように、該円柱状部２４の軸線Ｌの方向に延びる軸線方向溝３２ａ（軸線方向ガイド要素）とこの軸線方向溝３２ａに連続して円周方向に延びる周方向溝３２ｂ（周方向ガイド要素）とからなるガイド溝３２が形成されている。このガイド溝３２は、図２Ａから分かるように、２つ設けられており、それらは径方向で互いにずれた位置にある。   The base joint member 10 has a cylindrical part 24 constituted by a circular part of the base 14 and the upper plate 18 and a substantially square plate-like part 26 extending laterally from the cylindrical part 24. It is said that. Mounting holes 28 are provided at the four corners of the plate-like portion 26, and the base joint member 10 can be fixed to other devices or the like with bolts or the like passed through the mounting holes 28. As shown in FIG. 2D, the circumferential side surface 30 of the cylindrical portion 24 is continuous with the axial groove 32a (axial guide element) extending in the direction of the axis L of the cylindrical portion 24 and the axial groove 32a. A guide groove 32 including a circumferential groove 32b (circumferential guide element) extending in the circumferential direction is formed. As can be seen from FIG. 2A, two guide grooves 32 are provided, and they are in a position shifted from each other in the radial direction.

図３Ａ乃至図３Ｇに示す連結継手部材４０は、図３Ｅ及び図３Ｆに示すように、接続流路４２を有する円盤状の接続流路構成部４４及びこの接続流路構成部４４から延びる筒状壁４６からなる本体部４８と、この本体部４８内において回動中心軸線Ｍの周りで回動可能に取付けられた回動部材５０とを有する。接続流路構成部４４には、図３Ａに示すように、管継手部材５２が基部継手部材１０の管継手部材２０と同配列で１２個設けられており、各管継手部材５２の管接続部５２ａ（図３Ｅ）には（図示しない）配管チューブが接続できるようになっている。これら管継手部材５２の貫通孔５２ｂによって、本体部４８の複数の接続流路４２は構成されている。筒状壁４６は回動中心軸線Ｍをその中心軸線とする円形の内周面５４と円形の外周面５６とを有する円筒形状となっている。ただし、外周面５６の形状は、把持がしやすい形状などに任意に変えることができる。回動部材５０は、筒状壁４６の内周面５４の直径とほぼ同じ大きさの直径を有する、回動中心軸線Ｍを中心軸線とする円盤状の部材であり、筒状壁４６の内側においてその内周面５４と同心状に設定されている。また、回動部材５０は接続流路構成部４４から離れる方向で回動中心軸線Ｍと平行な方向に突出する複数の筒状部６０を有しており、これら筒状部６０の内周面６０ａによって複数の中間流路６１が構成されている。接続流路構成部４４の各接続流路４２の下端４２ａの周囲には円環状の摺動シール部材６２が配置されており、接続流路構成部４４の管継手部材５２と回動部材５０の接続面５８との間で摺動可能に密封係合している。   As shown in FIGS. 3E and 3F, the coupling joint member 40 shown in FIGS. 3A to 3G has a disk-like connection flow path component 44 having a connection flow path 42 and a cylindrical shape extending from the connection flow path structure 44. A main body 48 formed of a wall 46 and a rotation member 50 attached to the main body 48 so as to be rotatable around a rotation center axis M are provided. As shown in FIG. 3A, twelve pipe joint members 52 are provided in the connection flow path constituting section 44 in the same arrangement as the pipe joint members 20 of the base joint member 10. A piping tube (not shown) can be connected to 52a (FIG. 3E). The plurality of connection flow paths 42 of the main body 48 are configured by the through holes 52 b of the pipe joint members 52. The cylindrical wall 46 has a cylindrical shape having a circular inner peripheral surface 54 and a circular outer peripheral surface 56 with the rotation central axis M as the central axis. However, the shape of the outer peripheral surface 56 can be arbitrarily changed to a shape that is easy to grip. The rotation member 50 is a disk-shaped member having a diameter approximately the same as the diameter of the inner peripheral surface 54 of the cylindrical wall 46 and having the rotation center axis M as the central axis. Is set concentrically with the inner peripheral surface 54. Further, the rotation member 50 has a plurality of cylindrical portions 60 protruding in a direction parallel to the rotation center axis M in a direction away from the connection flow path constituting portion 44, and an inner peripheral surface of these cylindrical portions 60. A plurality of intermediate flow paths 61 are configured by 60a. An annular sliding seal member 62 is disposed around the lower end 42 a of each connection flow path 42 of the connection flow path forming portion 44, and the pipe joint member 52 and the rotating member 50 of the connection flow path forming portion 44 are arranged. The connecting surface 58 is slidably sealed and engaged.

回動部材５０にはさらに、図３Ｃに示すように、回動部材５０の回動方向に沿って延びる４つの円弧状のスロット穴６４が形成されており、段付ボルト（保持部材）６６がこれらスロット穴６４を通して接続流路構成部４４にねじ固定されている。段付ボルト６６は、図３Ｇに示すように、接続流路構成部４４にネジ固定されるネジ部６６ａと、スロット穴６４を貫通するようにネジ部６６ａから延び、ネジ部６６ａよりも大径とされた軸部６６ｂと、軸部６６ｂにさらに連接し、スロット穴６４の幅よりも大きな幅を有する頭部６６ｃとからなる。頭部６６ｃとスロット穴６４の周囲の摺動面６４ａとの間には樹脂リング６８が配置されている。頭部６６ｃは、スロット穴６４の周囲の摺動面６４ａにおいて樹脂リング６８を介して回動中心軸線Ｍの方向で回動部材５０に摺動係合して、回動部材５０が本体部４８から離れる方向で変位しないように保持している。４つの段付ボルト６６の頭部６６ｃによって回動部材５０は接続流路構成部４４に向かって押圧されて摺動シール部材６２を接続流路構成部４４との間で所定量だけ押し潰しているが、軸部６６ｂの長さはスロット穴６４の厚さよりも大きく設定されているので、回動部材５０は、接続流路構成部４４には直接的に接触していない状態で保持される。従って、回動部材５０は、摺動シール部材６２からの摺動摩擦は受けるが、接続流路構成部４４に対して回動中心軸線Ｍを中心に回動可能となっている。なお、段付ボルト６６を接続流路４２を囲むように配置することで、全ての摺動シール部材６２が均等に押圧されるようにしている。回動部材５０は、各接続流路４２の下端４２ａが回動部材５０の接続面５８によって閉止されている閉止位置（図３Ｅ）と、各接続流路４２の下端４２ａがそれに対応する中間流路６１の上端６１ａと接続されて接続流路４２と中間流路６１とが連通している連通位置（図３Ｆ）との間で回動可能となっている。段付ボルト６６の軸部６６ｂは、回動部材５０が連通位置にまで回動されたときにスロット穴６４の一端６４ｂにその回動方向で当接して回動部材５０が連通位置を超えて回動できないようにしている。同様に、回動部材５０が閉止位置にまで回動されたときにはスロット穴６４の他端にその回動方向で当接して回動部材５０が閉止位置を超えて回動できないようにしている。すなわち回動部材５０は、スロット穴６４と段付ボルト６６とによって、閉止位置と連通位置との間でのみ回動可能となっている。   As shown in FIG. 3C, the rotating member 50 is further formed with four arc-shaped slot holes 64 extending along the rotating direction of the rotating member 50, and a stepped bolt (holding member) 66 is provided. These slot holes 64 are screwed to the connection flow path component 44. As shown in FIG. 3G, the stepped bolt 66 extends from the screw portion 66a so as to penetrate the slot hole 64, and has a larger diameter than the screw portion 66a. The shaft portion 66b is connected to the shaft portion 66b, and the head portion 66c has a width larger than the width of the slot hole 64. A resin ring 68 is disposed between the head 66 c and the sliding surface 64 a around the slot hole 64. The head 66 c is slidably engaged with the rotation member 50 in the direction of the rotation center axis M through the resin ring 68 on the sliding surface 64 a around the slot hole 64, and the rotation member 50 is in the main body 48. It is held so as not to be displaced in the direction away from it. The rotating member 50 is pressed toward the connection flow path component 44 by the heads 66c of the four stepped bolts 66, and the sliding seal member 62 is crushed by a predetermined amount with the connection flow path component 44. However, since the length of the shaft portion 66 b is set larger than the thickness of the slot hole 64, the rotating member 50 is held in a state where it is not in direct contact with the connection flow path constituting portion 44. . Therefore, the rotating member 50 receives the sliding friction from the sliding seal member 62, but can rotate about the rotation center axis M with respect to the connection flow path component 44. In addition, by arranging the stepped bolts 66 so as to surround the connection flow path 42, all the sliding seal members 62 are pressed evenly. The rotating member 50 has a closed position (FIG. 3E) where the lower end 42a of each connecting flow path 42 is closed by the connection surface 58 of the rotating member 50, and an intermediate flow corresponding to the lower end 42a of each connecting flow path 42. It is connected to the upper end 61a of the path 61 and is rotatable between a communication position (FIG. 3F) where the connection channel 42 and the intermediate channel 61 communicate with each other. The shaft portion 66b of the stepped bolt 66 contacts the one end 64b of the slot hole 64 in the rotation direction when the rotation member 50 is rotated to the communication position, and the rotation member 50 exceeds the communication position. It prevents rotation. Similarly, when the rotating member 50 is rotated to the closed position, the other end of the slot hole 64 is contacted in the rotating direction so that the rotating member 50 cannot rotate beyond the closed position. That is, the rotation member 50 can be rotated only between the closed position and the communication position by the slot hole 64 and the stepped bolt 66.

図３Ｃに示すように、連結継手部材４０の筒状壁４６には、その内周面５４にガイドローラ（被ガイド要素）７０が２つ設けられている。これらガイドローラ７０は、径方向で互いにずれた位置に設けられている。また、これらガイドローラ７０は基部継手部材１０に設けられたガイド溝３２の軸線方向溝３２ａに対応する位置に配置されており、回動部材５０が閉止位置にある状態で、当該ガイドローラ７０が軸線方向溝３２ａと回動中心軸線Ｍの方向で整合するように連結継手部材４０と基部継手部材１０とを配置したときに、各中間流路６１の下端６１ｂとそれに対応する基部流路１２の上端１２ａとが回動中心軸線Ｍの方向で整合するようになっている。軸線方向溝３２ａとガイドローラ７０は、上述のように径方向で互いにずれた位置に配置されているので、ガイドローラ７０が軸線方向溝３２ａに受け入れられる向きはただ一つに限定されることになる。すなわち連結継手部材４０を基部継手部材１０に連結可能な向きはただ一つに決まる。筒状壁４６にはさらに、図３Ｄに示すように、開口７２が形成され、この開口７２内において筒状壁４６に対してピン７４で枢動可能に取付けられた回動固定部材７６が取付けられている。   As shown in FIG. 3C, two guide rollers (guided elements) 70 are provided on the inner peripheral surface 54 of the cylindrical wall 46 of the coupling joint member 40. These guide rollers 70 are provided at positions shifted from each other in the radial direction. The guide rollers 70 are arranged at positions corresponding to the axial grooves 32a of the guide grooves 32 provided in the base joint member 10, and the guide rollers 70 are in a state where the rotating member 50 is in the closed position. When the coupling joint member 40 and the base joint member 10 are arranged so as to be aligned in the direction of the axial groove 32a and the rotation center axis M, the lower end 61b of each intermediate flow path 61 and the corresponding base flow path 12 The upper end 12a is aligned with the direction of the rotation center axis M. Since the axial groove 32a and the guide roller 70 are arranged at positions shifted from each other in the radial direction as described above, the direction in which the guide roller 70 is received in the axial groove 32a is limited to one. Become. That is, only one direction in which the coupling joint member 40 can be coupled to the base coupling member 10 is determined. Further, as shown in FIG. 3D, an opening 72 is formed in the cylindrical wall 46, and a rotation fixing member 76 that is pivotally attached to the cylindrical wall 46 by a pin 74 in the opening 72 is attached. It has been.

連結継手部材４０を基部継手部材１０に連結する際には、まず、連結継手部材４０の回動部材５０が閉止位置にある状態で、連結継手部材４０のガイドローラ７０が基部継手部材１０に設けられたガイド溝３２の軸線方向溝３２ａと回動中心軸線Ｍの方向で整合するように、連結継手部材４０を基部継手部材１０に対して相対的に位置決めする（図４Ａ、図５Ａ）。なお、このとき回動中心軸線Ｍと円柱状部の軸線Ｌとは一致し、中間流路６１の下端６１ｂとそれに対応する基部流路１２の上端１２ａとがこれら軸線Ｌ、Ｍの方向で整合した状態となる。次に、連結継手部材４０を基部継手部材１０に対して軸線Ｌ、Ｍの方向で近づけて基部継手部材１０に連結する（図５Ｂ）。このとき、連結継手部材４０の筒状壁４６が基部継手部材１０の円柱状部２４と同心状となって円柱状部２４の円周側面３０を覆った状態となる。また、筒状部６０が基部流路１２内に挿入されて係合し、それにより回動部材５０が基部継手部材１０に対して回動できない状態となる。そして、このように回動部材５０が基部継手部材１０に係合した状態で連結継手部材４０の本体部４８を基部継手部材１０に対して図４Ａで見て時計回りに相対的に回動させると、回動部材５０が閉止位置から連通位置へと変位する（図４Ｂ、図５Ｃ）。なお、図４Ｂにおいては、図４Ａの状態から基部継手部材１０を連結継手部材４０に対して反時計回り回動した状態で示してある。図５Ｃに示す連通連結状態においては、回動部材５０が連通位置となって各接続流路４２とそれに対応する中間流路６１とが連通した状態となっている。また、基部流路１２内に設けられた円環状の軸シール部材７１によって基部流路１２の内周面１２ｂと回動部材５０の筒状部６０の外周面６０ｂとが密封係合して、各中間流路６１とそれに対応する基部流路１２とが流体接続された状態となっている。従って、各接続流路４２は、中間流路６１を介して、対応する基部流路１２にそれぞれ流体接続された状態となっている。これにより、各接続流路４２内の圧縮流体が対応する基部流路１２内に流れるようになる。なお、接続流路４２及び中間流路６１は回動中心軸線Ｍと平行に延び、基部流路１２は円柱状部２４の軸線Ｌと平行に延びているので、連通状態においては、接続流路４２と中間流路６１と基部流路１２とが回動中心軸線Ｍと平行に一直線上に整列した状態となる。ただし、各流路を軸線Ｌ、Ｍと平行にする必要は無く、各流路の対応する端部同士が接続されるように配置されていれば、流路自体は曲がっていたり傾斜していたりしてもよい。   When connecting the connecting joint member 40 to the base joint member 10, first, the guide roller 70 of the connecting joint member 40 is provided on the base joint member 10 in a state where the rotating member 50 of the connecting joint member 40 is in the closed position. The coupling joint member 40 is positioned relative to the base joint member 10 so as to be aligned with the axial groove 32a of the guide groove 32 in the direction of the rotation center axis M (FIGS. 4A and 5A). At this time, the rotation center axis M and the axis L of the cylindrical portion coincide with each other, and the lower end 61b of the intermediate channel 61 and the corresponding upper end 12a of the base channel 12 are aligned in the directions of these axes L and M. It will be in the state. Next, the connecting joint member 40 is brought close to the base joint member 10 in the directions of the axes L and M and connected to the base joint member 10 (FIG. 5B). At this time, the cylindrical wall 46 of the coupling joint member 40 is concentric with the cylindrical portion 24 of the base joint member 10 and covers the circumferential side surface 30 of the cylindrical portion 24. Further, the cylindrical portion 60 is inserted into the base flow path 12 and engaged therewith, so that the rotating member 50 cannot rotate with respect to the base joint member 10. Then, with the rotating member 50 engaged with the base joint member 10 in this way, the main body 48 of the coupling joint member 40 is rotated relative to the base joint member 10 in the clockwise direction as viewed in FIG. 4A. Then, the rotating member 50 is displaced from the closed position to the communication position (FIGS. 4B and 5C). 4B shows the base joint member 10 rotated counterclockwise with respect to the coupling joint member 40 from the state shown in FIG. 4A. In the communication connection state shown in FIG. 5C, the rotation member 50 is in the communication position, and each connection flow path 42 and the corresponding intermediate flow path 61 are in communication. Further, the annular shaft seal member 71 provided in the base channel 12 causes the inner peripheral surface 12b of the base channel 12 and the outer peripheral surface 60b of the cylindrical portion 60 of the rotating member 50 to be in a sealing engagement, Each intermediate channel 61 and the corresponding base channel 12 are fluidly connected. Therefore, each connection channel 42 is in a state of being fluidly connected to the corresponding base channel 12 via the intermediate channel 61. As a result, the compressed fluid in each connection channel 42 flows into the corresponding base channel 12. In addition, since the connection flow path 42 and the intermediate flow path 61 extend in parallel with the rotation center axis M, and the base flow path 12 extends in parallel with the axis L of the cylindrical portion 24, the connection flow path in the communication state. 42, the intermediate flow path 61, and the base flow path 12 are aligned on a straight line parallel to the rotation center axis M. However, it is not necessary for each flow path to be parallel to the axes L and M. If the corresponding ends of each flow path are connected to each other, the flow path itself may be bent or inclined. May be.

連結継手部材４０が基部継手部材１０に連通連結される上述の過程において、連結継手部材４０に設けられたガイドローラ７０は、基部継手部材１０に設けられたガイド溝３２に沿って移動していく。すなわち、図５Ａの状態から図５Ｂの状態に向かって連結継手部材４０を基部継手部材１０に軸線Ｌ、Ｍの方向で連結しているときには、ガイドローラ７０はガイド溝３２の軸線方向溝３２ａによって軸線Ｌ、Ｍの方向に案内される。また、図５Ｂの状態から図５Ｃの状態に向かって連結継手部材４０の本体部４８と基部継手部材１０とを相対的に回動させているときには、ガイドローラ７０はガイド溝３２の周方向溝３２ｂによって円周方向に案内される。そして、回動部材５０が閉止位置から連通位置に至る途中の位置からガイドローラ７０が周方向溝３２ｂに係合するようになり、少なくとも回動部材５０が連通位置にあるときには、ガイドローラ７０が周方向溝３２ｂに係合して連結継手部材４０が基部継手部材１０から軸線Ｌ、Ｍの方向で離れないようになっている。このようにガイドローラ７０と周方向溝３２ｂとが軸線Ｌ、Ｍの方向で係合することにより、流路内を流れる圧縮流体の圧力によって連結継手部材４０が吹き飛ばされることを防止することができる。   In the above-described process in which the coupling joint member 40 is communicatively coupled to the base joint member 10, the guide roller 70 provided on the coupling joint member 40 moves along the guide groove 32 provided on the base joint member 10. . That is, when the connecting joint member 40 is connected to the base joint member 10 in the directions of the axes L and M from the state of FIG. 5A to the state of FIG. 5B, the guide roller 70 is moved by the axial groove 32 a of the guide groove 32. Guided in the direction of the axes L and M. Further, when the body portion 48 of the coupling joint member 40 and the base joint member 10 are relatively rotated from the state of FIG. 5B toward the state of FIG. 5C, the guide roller 70 is a circumferential groove of the guide groove 32. It is guided in the circumferential direction by 32b. Then, the guide roller 70 comes into engagement with the circumferential groove 32b from the middle of the rotation member 50 from the closed position to the communication position, and at least when the rotation member 50 is in the communication position, the guide roller 70 is The coupling joint member 40 is engaged with the circumferential groove 32 b so as not to be separated from the base joint member 10 in the directions of the axes L and M. As described above, the guide roller 70 and the circumferential groove 32b are engaged in the directions of the axes L and M, so that the connecting joint member 40 can be prevented from being blown off by the pressure of the compressed fluid flowing in the flow path. .

連結継手部材４０の筒状壁４６に取付けられた回動固定部材７６は、非連結状態（図５Ａ）においては、図６Ａに示すように、ねじりコイルバネ７８によって付勢されて先端の係合部７６ａが筒状壁４６の内周面５４から半径方向内側に突出した状態となっている。連結継手部材４０を基部継手部材１０に連結して図５Ｂに示す状態とすると、回動固定部材７６は、図６Ｂに示すように、基部継手部材１０の円柱状部２４に係合して図で見て時計回りに枢動され、係合部７６ａが半径方向外側に変位した状態となる。さらに連結継手部材４０の本体部４８を基部継手部材１０に対して相対的に回動して回動部材５０が連通位置となる図５Ｃに示す状態とすると、回動固定部材７６がガイド溝３２の軸線方向溝３２ａと半径方向で整合し、回動固定部材７６は、図６Ｃに示すように、ねじりコイルバネ７８の付勢力によって図で見て反時計回りに枢動されて係合部７６ａが半径方向内側に変位し軸線方向溝３２ａと係合した状態となる。回動固定部材７６の係合部７６ａが軸線方向溝３２ａと係合することにより、基部継手部材１０に対する連結継手部材４０の本体部４８の相対的回動が阻止され、それにより不用意に本体部４８が回動されて連結継手部材４０と基部継手部材１０との連結が解除されることがないようにしている。連結を解除する際には、回動固定部材７６の操作部７６ｂを押して回動固定部材７６をねじりコイルバネ７８の付勢力に抗して図で見て時計回りに枢動させ、係合部７６ａと軸線方向溝３２ａとの係合を解除した状態として、連結継手部材４０の本体部４８を回動させるようにする。なお、本実施形態では、回動固定部材７６がガイド溝３２の軸線方向溝３２ａに係合するようになっているが、軸線方向溝３２ａとは別に基部継手部材１０の円柱状部２４に施錠凹部を形成して、回動固定部材７６がこの施錠凹部に係合するようにしてもよい。また、図６Ａの状態においては回動固定部材が回動部材に対して回動方向で係合し、図６Ａの状態ではその係合が解除されるような構成として、非連結状態における回動部材の回動を防止するようにすることもできる。   As shown in FIG. 6A, the rotation fixing member 76 attached to the cylindrical wall 46 of the coupling joint member 40 is urged by the torsion coil spring 78 and is engaged at the tip as shown in FIG. 6A. 76 a is in a state of projecting radially inward from the inner peripheral surface 54 of the cylindrical wall 46. When the connecting joint member 40 is connected to the base joint member 10 to be in the state shown in FIG. 5B, the rotation fixing member 76 is engaged with the cylindrical portion 24 of the base joint member 10 as shown in FIG. 6B. And the engagement portion 76a is displaced outward in the radial direction. Further, when the main body 48 of the coupling joint member 40 is rotated relative to the base joint member 10 and the rotation member 50 is in the communication position shown in FIG. As shown in FIG. 6C, the rotation fixing member 76 is pivoted counterclockwise as viewed in the figure by the urging force of the torsion coil spring 78 so that the engaging portion 76a is engaged with the axial groove 32a in the radial direction. It is displaced radially inward and engaged with the axial groove 32a. By engaging the engaging portion 76a of the rotation fixing member 76 with the axial groove 32a, the relative rotation of the main body portion 48 of the coupling joint member 40 with respect to the base joint member 10 is prevented, thereby inadvertently causing the main body. The part 48 is not rotated and the connection between the connection joint member 40 and the base joint member 10 is not released. When the connection is released, the operation portion 76b of the rotation fixing member 76 is pushed, and the rotation fixing member 76 is pivoted clockwise as viewed in the figure against the urging force of the torsion coil spring 78, and the engagement portion 76a. The main body portion 48 of the coupling joint member 40 is rotated in a state in which the engagement with the axial groove 32a is released. In this embodiment, the rotation fixing member 76 is engaged with the axial groove 32a of the guide groove 32. However, the columnar portion 24 of the base joint member 10 is locked separately from the axial groove 32a. A recess may be formed so that the rotation fixing member 76 engages with the locking recess. 6A, the rotation fixing member is engaged with the rotation member in the rotation direction, and the engagement is released in the state of FIG. 6A. It is also possible to prevent the rotation of the member.

上記実施形態においては、連結継手部材４０の接続流路４２が管継手部材５２により構成されるようになっているが、本体部４８の接続流路構成部４４に直接流路を形成するようにしてもよい。基部継手部材１０の基部流路１２についても同様に基台１４に直接流路を形成するようにしてもよい。また、回動部材５０の筒状部６０が基部継手部材１０の基部流路１２内に挿入されることにより回動部材５０の基部継手部材１０に対する相対的回動が防止されるようになっているが、例えば、回動部材５０に係合凸部を設け、基部継手部材１０に係合凹部を設けて、係合凸部と係合凹部とが係合するようにするなどして、他の構造によって相対的回動を防止することもできる。また、軸線方向ガイド要素及び周方向ガイド要素をそれぞれ軸線方向溝３２ａ及び周方向溝３２ｂとしているが、これら軸線方向ガイド要素及び周方向ガイド要素は必ずしも溝によって構成する必要は無く、例えば基部継手部材１０の円周側面３０から突出するレール状のものとすることもできる。また、被ガイド要素をガイドローラ７０ではなく別の部材、例えば単なる凸部、としてもよい。さらには、連結継手部材４０の筒状壁４６の内周面５４にガイド溝を形成し、基部継手部材１０の円周側面３０にガイドローラを設けるようにしてもよい。   In the above embodiment, the connection flow path 42 of the coupling joint member 40 is configured by the pipe joint member 52, but the flow path is directly formed in the connection flow path configuration portion 44 of the main body 48. May be. Similarly, the base channel 12 of the base joint member 10 may be formed directly on the base 14. Further, when the cylindrical portion 60 of the rotating member 50 is inserted into the base channel 12 of the base joint member 10, relative rotation of the rotating member 50 with respect to the base joint member 10 is prevented. However, for example, an engaging convex portion is provided on the rotating member 50, an engaging concave portion is provided on the base joint member 10, and the engaging convex portion and the engaging concave portion are engaged with each other. Relative rotation can also be prevented by this structure. In addition, the axial guide element and the circumferential guide element are the axial groove 32a and the circumferential groove 32b, respectively. However, the axial guide element and the circumferential guide element do not necessarily need to be configured by a groove. For example, a base joint member It can also be a rail shape protruding from the 10 circumferential side surfaces 30. Further, the guided element may be a member other than the guide roller 70, for example, a simple convex portion. Furthermore, a guide groove may be formed on the inner peripheral surface 54 of the cylindrical wall 46 of the coupling joint member 40, and a guide roller may be provided on the circumferential side surface 30 of the base joint member 10.

本発明に係る多管継手１においては、回動操作によって接続流路４２の開閉を行うようになっているので、流路の軸線の方向に移動する弁体を備える従来の多管継手のような構造に比べて、軸線の方向での小型化が容易になる。また、従来の多管継手において流路内に圧力がかかっている状態で連結しようとすると弁体を該圧力に逆らって流路内に押し込まなければならないので連結操作に比較的に大きな力が必要であったが、本発明の構成では回動により流路の開閉を行うので、内部圧力の影響をあまり受けず、開閉操作に従来ほどの大きさの力を要しない。これにより、従来の多管継手のようなカム機構を設ける必要がなくなり、またカム機構において必要とされていたレバーなどの作動部材も必要としなくなるため幅方向での小型化も可能となる。   In the multi-pipe joint 1 according to the present invention, the connection channel 42 is opened and closed by a turning operation, so that it is like a conventional multi-pipe joint including a valve body that moves in the direction of the axis of the channel. Compared to a simple structure, it is easy to reduce the size in the direction of the axis. In addition, in a conventional multi-pipe joint, if a connection is attempted in a state where pressure is applied to the flow path, the valve body must be pushed into the flow path against the pressure, so a relatively large force is required for the connection operation. However, in the configuration of the present invention, the flow path is opened and closed by rotation, so that it is not greatly affected by the internal pressure, and the opening / closing operation does not require a force as large as that of the conventional one. As a result, it is not necessary to provide a cam mechanism such as a conventional multi-pipe joint, and an operation member such as a lever required in the cam mechanism is not required, so that the size in the width direction can be reduced.

多管継手１；基部継手部材１０；基部流路１２；上端１２ａ；内周面１２ｂ；基台１４；ネジ１６；上部板１８；管継手部材２０；管接続部２０ａ；貫通孔２０ｂ；受入孔２２；円柱状部２４；板状部２６；取付穴２８；円周側面３０；ガイド溝３２；軸線方向溝３２ａ；周方向溝３２ｂ；連結継手部材４０；接続流路４２；下端４２ａ；接続流路構成部４４；筒状壁４６；本体部４８；回動部材５０；管継手部材５２；管接続部５２ａ；貫通孔５２ｂ；内周面５４；外周面５６；接続面５８；筒状部６０；内周面６０ａ；外周面６０ｂ；中間流路６１；上端６１ａ；下端６１ｂ；摺動シール部材６２；スロット穴６４；摺動面６４ａ；一端６４ｂ；段付ボルト６６；ネジ部６６ａ；軸部６６ｂ；頭部６６ｃ；樹脂リング６８；ガイドローラ７０；軸シール部材７１；開口７２；ピン７４；回動固定部材７６；係合部７６ａ；操作部７６ｂ；ねじりコイルバネ７８；軸線Ｌ；回動中心軸線Ｍ； Multi-pipe joint 1; Base joint member 10; Base flow channel 12; Upper end 12a; Inner peripheral surface 12b; Base 14; Screw 16; Upper plate 18; Pipe joint member 20; 22; cylindrical portion 24; plate-like portion 26; mounting hole 28; circumferential side surface 30; guide groove 32; axial groove 32a; circumferential groove 32b; connection joint member 40; Road component 44; cylindrical wall 46; main body 48; rotating member 50; pipe joint member 52; pipe connecting part 52a; through hole 52b; inner peripheral surface 54; outer peripheral surface 56; Inner peripheral surface 60a; outer peripheral surface 60b; intermediate channel 61; upper end 61a; lower end 61b; sliding seal member 62; slot hole 64; sliding surface 64a; 66b; head 66c; resin ring 68; guide roller 0; shaft seal member 71; opening 72; pins 74, rotation fixing member 76; the engaging portion 76a; operation unit 76 b; torsion coil spring 78; axis L; rotation center axis M;

Claims (15)

複数の基部流路が設けられた基部継手部材に取り外し可能に連結された状態で前記複数の基部流路にそれぞれ選択的に流体接続される複数の接続流路を有する、多管継手の連結継手部材であって、
前記複数の接続流路を有する本体部と、
複数の中間流路を有し、前記本体部に対して回動中心軸線の周りで相対的に回動可能に取付けられた回動部材であって、各中間流路の一端が対応する前記接続流路の一端に流体接続されて前記中間流路と対応する前記接続流路とが連通する連通位置と、各中間流路の前記一端と対応する前記接続流路の前記一端との流体接続が解除されて前記接続流路が閉止される閉止位置との間で回動可能とされた回動部材と、を備えており、
各中間流路の他端が対応する前記基部流路の一端に流体接続されるようにして当該連結継手部材を前記基部継手部材に連結したときに、前記回動部材が前記基部継手部材に対して回動しないように該基部継手部材に係合した状態となり、該係合した状態で前記本体部を前記基部継手部材に対して相対的に回動させることにより、前記回動部材が前記連通位置と前記閉止位置との間で回動するようにされた、多管継手の連結継手部材。 A multi-joint coupling joint having a plurality of connection flow paths that are selectively fluidly connected to the plurality of base flow paths in a state where the base joint member is detachably coupled to a base joint member provided with a plurality of base flow paths. A member,
A main body having the plurality of connection channels;
A rotation member having a plurality of intermediate flow paths and attached to the main body portion so as to be relatively rotatable around a rotation center axis, wherein one end of each intermediate flow path corresponds to the connection member A fluid connection between one end of the flow path and a connection position where the connection flow path corresponding to the intermediate flow path communicates with the one end of the connection flow path corresponding to the one end of each intermediate flow path. A rotation member that is rotatable and can be rotated between a closed position where the connection flow path is closed, and
When the connecting joint member is connected to the base joint member in such a manner that the other end of each intermediate flow path is fluidly connected to one end of the corresponding base flow path, the rotating member is connected to the base joint member. The base member is engaged with the base joint member so as not to rotate, and the main body is rotated relative to the base joint member in the engaged state, whereby the rotational member is connected to the communication member. A coupling joint member of a multi-pipe joint that is adapted to rotate between a position and the closed position. 前記連結継手部材の前記本体部上において前記接続流路の前記一端を囲むように配置され、前記回動部材と摺動可能に密封係合する摺動シール部材をさらに有し、前記回動部材が閉止位置となったときに前記接続流路の前記一端が前記摺動シール部材を介して前記回動部材によって閉止されるようにされている、請求項１に記載の多管継手の連結継手部材。   The rotating member further includes a sliding seal member disposed so as to surround the one end of the connection flow path on the main body portion of the coupling joint member, and slidably sealingly engages with the rotating member. The multi-pipe joint coupling joint according to claim 1, wherein the one end of the connection flow path is closed by the rotating member via the sliding seal member when is in a closed position. Element. 前記本体部から前記回動中心軸線と平行に延びる軸部と、該軸部に連接した頭部とを有する保持部材をさらに備えており、
前記回動部材が、該回動部材の回動方向に沿って延びる円弧状のスロット穴と、該回動部材の前記本体部に面する側とは反対の側で、前記スロット穴に沿って設けられた摺動面と、を有し、
前記保持部材の前記軸部が前記スロット穴を貫通して延びており、
前記保持部材の前記頭部が、前記スロット穴の幅よりも大きな幅を有し、前記摺動面と摺動係合して該回動部材が前記本体部から離れる方向で変位しないように保持している、請求項１又は２に記載の多管継手の連結継手部材。 A holding member having a shaft portion extending in parallel with the rotation center axis line from the main body portion and a head portion connected to the shaft portion;
The rotating member has an arcuate slot hole extending along the rotating direction of the rotating member, and the side opposite to the side facing the main body of the rotating member, along the slot hole. A sliding surface provided,
The shaft portion of the holding member extends through the slot hole;
The head portion of the holding member has a width larger than the width of the slot hole, and is held so as not to be displaced in a direction away from the main body portion by slidingly engaging with the sliding surface. The connecting joint member of the multi-pipe joint according to claim 1 or 2. 前記保持部材の前記軸部は、前記回動部材が前記連通位置にまで回動されたときに前記スロット穴の一端に当接して前記回動部材が前記連通位置を超えて回動しないようにし、前記回動部材が前記閉止位置にまで回動されたときに前記スロット穴の他端に当接して前記回動部材が前記閉止位置を超えて回動しないようにしている、請求項３に記載の多管継手の連結継手部材。   The shaft portion of the holding member abuts against one end of the slot hole when the rotating member is rotated to the communication position so that the rotating member does not rotate beyond the communication position. The rotating member is brought into contact with the other end of the slot hole when the rotating member is rotated to the closed position so that the rotating member does not rotate beyond the closed position. The coupling joint member of the multi-pipe joint described. 前記本体部が、前記接続流路が前記回転中心軸線と平行な方向に貫通するように設けられている接続流路構成部と、該接続流路構成部から伸び、前記回動中心軸線を中心軸線とする円形の内周面を有する筒状壁とを有し、
前記回動部材が、前記内周面内に設定された、前記回動中心軸線を中心軸線とする円盤状の部材とされ、
前記中間流路が、前記回動部材を前記回動中心軸線と平行な方向に貫通して延びている、請求項１乃至４の何れか一項に記載の多管継手の連結継手部材。 The main body extends from the connection flow path component and is connected to the connection flow path component so that the connection flow path extends in a direction parallel to the rotation center axis, and the rotation center axis is the center. A cylindrical wall having a circular inner peripheral surface as an axis,
The rotating member is a disc-shaped member set in the inner peripheral surface and having the rotating central axis as a central axis,
The multi-joint coupling joint member according to any one of claims 1 to 4, wherein the intermediate flow path extends through the turning member in a direction parallel to the turning central axis. 前記基部継手部材が、前記複数の基部流路を有する円柱状部を有しており、
前記連結継手部材を前記基部継手部材に連結したときに、前記連結継手部材の前記筒状壁が前記基部継手部材の前記円柱状部と同心状となって前記円柱状部の円周側面を覆うようにされ、
前記基部継手部材の前記円柱状部が、該円柱状部の軸線の方向で前記円周側面上に延びる軸線方向ガイド要素を有し、
前記連結継手部材の前記筒状壁が、該筒状壁の前記内周面に設けられた被ガイド要素を有しており、
前記被ガイド要素は、前記回動部材が前記閉止位置にあり且つ各中間流路の前記他端が対応する前記基部流路の前記一端に前記回動中心軸線の方向で整合しているときに、前記軸線方向ガイド要素と前記回動中心軸線の方向で整合する位置に配置されている、請求項１乃至５の何れか一項に記載の多管継手の連結継手部材。 The base joint member has a cylindrical portion having the plurality of base flow paths;
When the connection joint member is connected to the base joint member, the cylindrical wall of the connection joint member is concentric with the columnar part of the base joint member and covers the circumferential side surface of the columnar part. Was
The cylindrical portion of the base joint member has an axial guide element extending on the circumferential side in the direction of the axis of the cylindrical portion;
The cylindrical wall of the coupling joint member has a guided element provided on the inner peripheral surface of the cylindrical wall;
The guided element is configured such that the rotating member is in the closed position and the other end of each intermediate channel is aligned with the one end of the corresponding base channel in the direction of the rotation center axis. The multi-joint coupling joint member according to any one of claims 1 to 5, wherein the joint joint member is disposed at a position aligned with the axial direction guide element in the direction of the rotation center axis. 前記基部継手部材の前記円柱状部の円周側面が、前記軸線方向ガイド要素に連続して周方向に延びる周方向ガイド要素を有しており、
前記回動部材が前記基部継手部材に対して回動しないように該基部継手部材に係合した状態で前記本体部を前記基部継手部材に対して相対的に回動したときに、前記被ガイド要素が前記周方向ガイド要素に沿って案内されると共に、少なくとも前記回動部材が前記連通位置にあるときには該被ガイド要素が前記周方向ガイド要素に係合して、当該連結継手部材が前記基部継手部材から前記回動中心軸線の方向で離れないようになる、請求項６に記載の多管継手の連結継手部材。 The circumferential side surface of the columnar portion of the base joint member has a circumferential guide element extending in the circumferential direction continuously to the axial guide element,
When the main body is rotated relative to the base joint member in a state of being engaged with the base joint member so that the rotation member does not rotate with respect to the base joint member, the guided member An element is guided along the circumferential guide element, and at least when the rotating member is in the communication position, the guided element is engaged with the circumferential guide element, and the coupling joint member is The connecting joint member for a multi-pipe joint according to claim 6, wherein the connecting member is not separated from the joint member in the direction of the rotation center axis. 前記筒状壁が、該筒状壁の前記内周面から半径方向内側に突出するようにバネ付勢された回動固定部材を備えており、該回動固定部材は、当該連結継手部材を前記基部継手部材に連結するときに前記円柱状部に係合して半径方向外側に変位され、前記本体部を前記基部継手部材に対して相対的に回動して前記回動部材が前記連通位置とされたときに、前記円周側面に設けられた施錠凹部と半径方向で整合して半径方向内側に変位して該施錠凹部に係合し、前記本体部の前記基部継手部材に対する相対的回動を阻止するようにされている、請求項７に記載の多管継手の連結継手部材。   The cylindrical wall includes a rotation fixing member that is spring-biased so as to protrude radially inward from the inner peripheral surface of the cylindrical wall, and the rotation fixing member includes the coupling joint member. When connecting to the base joint member, it engages with the cylindrical portion and is displaced radially outward, and the main body is rotated relative to the base joint member so that the rotating member communicates with the base joint member. When the position is set, the locking recesses provided on the circumferential side surface are aligned in the radial direction and displaced radially inward to engage with the locking recesses, and the main body portion is relative to the base joint member. The connecting joint member for a multi-pipe joint according to claim 7, wherein the connecting joint member is configured to prevent rotation. 前記軸線方向ガイド要素が、前記円柱状部の前記軸線の方向に延びるように前記円周側面に形成された軸線方向溝であり、前記周方向ガイド要素が前記円周方向に延びるように前記円周側面に形成された周方向溝であり、前記施錠凹部が前記軸線方向溝により構成されている、請求項８に記載の多管継手の連結継手部材。   The axial guide element is an axial groove formed in the circumferential side surface so as to extend in the axial direction of the cylindrical portion, and the circular guide element extends in the circumferential direction. The multi-joint coupling joint member according to claim 8, wherein the multi-pipe joint coupling member is a circumferential groove formed on a peripheral side surface, and the locking recess is formed by the axial groove. 前記回動部材が、前記本体部から離れる方向に突出する複数の筒状部を有し、前記中間流路が前記筒状部の内周面によって構成されるようにされ、
当該連結継手部材を前記基部継手部材に連結したときに、各筒状部が対応する前記基部流路内に挿入されて該基部流路と係合し、それにより前記回動部材が前記基部継手部材に対して回動しないようになる、請求項１乃至９の何れか一項に記載の多管継手の連結継手部材。 The rotating member has a plurality of cylindrical portions protruding in a direction away from the main body, and the intermediate flow path is configured by an inner peripheral surface of the cylindrical portion;
When the connecting joint member is connected to the base joint member, each tubular portion is inserted into the corresponding base flow path and engages with the base flow path, whereby the rotating member is connected to the base joint. The multi-joint coupling joint member according to any one of claims 1 to 9, which does not rotate with respect to the member. 前記複数の基部流路が設けられた前記基部継手部材と、
該基部継手部材に取り外し可能に連結される請求項１乃至４の何れか一項に記載の連結継手部材と、
を備える多管継手。 The base joint member provided with the plurality of base flow paths;
The coupling joint member according to any one of claims 1 to 4, which is detachably coupled to the base coupling member,
A multi-pipe joint. 前記本体部が、前記接続流路が前記回転中心軸線と平行な方向に貫通するように設けられている接続流路構成部と、該接続流路構成部から伸び、前記回動中心軸線を中心軸線とする円形の内周面を有する筒状壁とを有し、
前記回動部材が、前記内周面内に設定された、前記回動中心軸線を中心軸線とする円盤状の部材とされ、
前記中間流路が、前記回動部材を前記回動中心軸線と平行な方向に貫通して延びており、
前記連結継手部材が、前記本体部から前記内周面の前記軸線の方向に延びる軸部と、該軸部に連接した頭部とを有する保持部材をさらに備えており、
前記回動部材が、前記内周面の前記軸線を中心とした円弧状のスロット穴を有し、
前記保持部材の前記軸部は、前記スロット穴を貫通して延びていて、前記回動部材が前記連通位置にまで回動されたときに前記スロット穴の一端に当接して前記回動部材が前記連通位置を超えて回動しないようにし、前記回動部材が前記閉止位置にまで回動されたときに前記スロット穴の他端に当接して前記回動部材が前記閉止位置を超えて回動しないようにし、
前記保持部材の前記頭部は、前記スロット穴の幅よりも大きな幅を有し、前記内周面の前記軸線の方向で前記回動部材に係合して該回動部材が前記本体部から離れないように保持しており、
前記基部継手部材が、前記複数の基部流路を有する円柱状部を有しており、
前記連結継手部材を前記基部継手部材に連結したときに、前記連結継手部材の前記筒状壁の前記内周面が前記基部継手部材の前記円柱状部と同心状となって前記円柱状部の円周側面を覆うようにされ、
前記基部継手部材の前記円柱状部が、該円柱状部の軸線の方向で前記円周側面上に延びる軸線方向ガイド要素と、該軸線方向ガイド要素に連続して周方向に延びる周方向ガイド要素とを有し、前記連結継手部材の前記筒状壁が、該筒状壁の前記内周面に設けられた被ガイド要素を有し、該被ガイド要素は、前記回動部材が前記閉止位置にあり且つ各中間流路の前記他端が対応する前記基部流路の前記一端に前記内周面の軸線の方向で整合しているときに、前記軸線方向ガイド要素と前記内周面の軸線の方向で整合する位置に配置されており、前記被ガイド要素はさらに前記回動部材が前記基部継手部材に対して回動しないように該基部継手部材に係合した状態で前記本体部を前記基部継手部材に対して相対的に回動したときに、前記周方向ガイド要素に沿って案内されると共に、前記回動部材が少なくとも前記連通位置にあるときに前記周方向ガイド要素に係合して、前記連結継手部材が前記基部継手部材から前記内周面の前記軸線の方向で離れないようにするようになる、請求項１１に記載の多管継手。 The main body extends from the connection flow path component and is connected to the connection flow path component so that the connection flow path extends in a direction parallel to the rotation center axis, and the rotation center axis is the center. A cylindrical wall having a circular inner peripheral surface as an axis,
The rotating member is a disc-shaped member set in the inner peripheral surface and having the rotating central axis as a central axis,
The intermediate flow path extends through the turning member in a direction parallel to the turning center axis,
The connecting joint member further includes a holding member having a shaft portion extending from the main body portion in the direction of the axis of the inner peripheral surface, and a head portion connected to the shaft portion;
The rotating member has an arc-shaped slot hole centered on the axis of the inner peripheral surface;
The shaft portion of the holding member extends through the slot hole, and contacts the one end of the slot hole when the rotating member is rotated to the communication position. The rotating member is prevented from rotating beyond the communication position, and when the rotating member is rotated to the closed position, the rotating member abuts against the other end of the slot hole and rotates beyond the closed position. Do n’t move,
The head portion of the holding member has a width larger than the width of the slot hole, and engages with the rotating member in the direction of the axis of the inner peripheral surface so that the rotating member is separated from the main body portion. And keep it away.
The base joint member has a cylindrical portion having the plurality of base flow paths;
When the coupling joint member is coupled to the base joint member, the inner peripheral surface of the cylindrical wall of the coupling joint member is concentric with the columnar section of the base coupling member. Is to cover the circumferential side,
The cylindrical portion of the base joint member has an axial guide element extending on the circumferential side surface in the direction of the axis of the cylindrical portion, and a circumferential guide element extending in the circumferential direction continuously to the axial guide element. The cylindrical wall of the coupling joint member has a guided element provided on the inner peripheral surface of the cylindrical wall, and the guided element has the rotating member in the closed position. And the other end of each intermediate channel is aligned with the one end of the corresponding base channel in the direction of the axis of the inner peripheral surface, and the axial guide element and the axis of the inner peripheral surface And the guided element further engages the base joint member so that the pivot member does not pivot relative to the base joint member. When the relative rotation with respect to the base joint member, And the guide member is engaged with the circumferential guide element when the rotating member is at least in the communication position, and the connecting joint member is moved from the base joint member to the inner peripheral surface. The multi-pipe joint according to claim 11, wherein the multi-pipe joint is designed not to be separated in the direction of the axis. 前記軸線方向ガイド要素が、前記円柱状部の前記軸線の方向に延びるように前記円周側面に形成された軸線方向溝であり、前記周方向ガイド要素が前記円周方向に延びるように前記円周側面に形成された周方向溝であり、
前記筒状壁が、該筒状壁の前記内周面から半径方向内側に突出するようにバネ付勢された回動固定部材を備えており、該回動固定部材は、前記連結継手部材を前記基部継手部材に連結するときに前記円柱状部に係合して半径方向外側に変位され、前記本体部を前記基部継手部材に対して相対的に回動して前記回動部材が前記連通位置とされたときに、前記円周側面に設けられた前記軸線方向溝と半径方向で整合して半径方向内側に変位して該軸線方向溝に係合し、前記本体部の前記基部継手部材に対する相対的回動を阻止するようにされている、請求項１２に記載の多管継手。 The axial guide element is an axial groove formed in the circumferential side surface so as to extend in the axial direction of the cylindrical portion, and the circular guide element extends in the circumferential direction. A circumferential groove formed in the peripheral side surface,
The cylindrical wall includes a rotation fixing member that is spring-biased so as to protrude radially inward from the inner peripheral surface of the cylindrical wall, and the rotation fixing member includes the coupling joint member. When connecting to the base joint member, it engages with the cylindrical portion and is displaced radially outward, and the main body is rotated relative to the base joint member so that the rotating member communicates with the base joint member. The base joint member of the main body portion is aligned with the axial groove provided on the circumferential side surface in the radial direction and displaced inward in the radial direction when engaged. The multi-pipe joint according to claim 12, wherein the multipipe joint is adapted to prevent relative rotation with respect to. 前記回動部材が、前記連結継手部材の前記本体部から離れる方向に突出する複数の筒状部を有し、前記中間流路が前記筒状部の内周面によって構成されるようにされ、
前記連結継手部材を前記基部継手部材に連結したときに、各筒状部が対応する前記基部流路内に挿入されて該基部流路と係合し、それにより前記回動部材が前記基部継手部材に対して回動しないようにされた、請求項１１乃至１３の何れか一項に記載の多管継手。 The rotating member has a plurality of cylindrical portions protruding in a direction away from the main body portion of the coupling joint member, and the intermediate flow path is configured by an inner peripheral surface of the cylindrical portion,
When the connecting joint member is connected to the base joint member, each tubular portion is inserted into the corresponding base flow path and engages with the base flow path, whereby the rotating member is connected to the base joint. The multi-pipe joint according to any one of claims 11 to 13, wherein the multi-pipe joint is configured not to rotate with respect to a member. 前記基部流路の内周面上に設けられた軸シール部材をさらに備え、前記回動部材の前記筒状部の外周面と前記基部流路の内周面とが前記軸シール部材を介して密封係合されるようにされた、請求項１４に記載の多管継手。   A shaft seal member provided on the inner peripheral surface of the base channel is further provided, and the outer peripheral surface of the cylindrical portion of the rotating member and the inner peripheral surface of the base channel are interposed via the shaft seal member. The multi-pipe joint according to claim 14, wherein the multi-pipe joint is adapted to be sealingly engaged.
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