JP5481090B2 - Female pipe fitting with sleeve fixing member - Google Patents

Female pipe fitting with sleeve fixing member Download PDF

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JP5481090B2
JP5481090B2 JP2009095868A JP2009095868A JP5481090B2 JP 5481090 B2 JP5481090 B2 JP 5481090B2 JP 2009095868 A JP2009095868 A JP 2009095868A JP 2009095868 A JP2009095868 A JP 2009095868A JP 5481090 B2 JP5481090 B2 JP 5481090B2
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sleeve
female pipe
pipe joint
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fixing member
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JP2010249150A (en
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智 辻田
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Nitto Kohki Co Ltd
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Description

本発明は管継手に関する。   The present invention relates to a pipe joint.

雌型管継手と雄型管継手とからなる管継手においては、雄型管継手が雌型管継手内に挿入された状態で、雌型管継手に設けられた半径方向貫通孔内に設けられた施錠子が雄型管継手の外周面に形成された凹部に係合され、その状態で、雌型管継手の外周に可動に設けられたスリーブが該施錠子を半径方向外側から押圧して該施錠子を雄型部材の凹部から外れないようにすることにより、雄型管継手及び雌型管継手の連結を保持するようにしたものがある。   In a pipe joint composed of a female pipe joint and a male pipe joint, the male pipe joint is provided in a radial through hole provided in the female pipe joint in a state where the male pipe joint is inserted into the female pipe joint. The lock is engaged with a recess formed on the outer peripheral surface of the male pipe joint, and in this state, a sleeve movably provided on the outer periphery of the female pipe joint presses the lock from the outside in the radial direction. There is one in which the locking element is kept from the recess of the male member so as to maintain the connection between the male pipe joint and the female pipe joint.

しかし、このような管継手においては、スリーブが何らかの原因により変位してしまう場合があり、雄型管継手及び雌型管継手が不用意に外れてしまう虞がある。   However, in such a pipe joint, the sleeve may be displaced for some reason, and the male pipe joint and the female pipe joint may be inadvertently disconnected.

スリーブと雌型管継手との関係のように、同軸状に配置された外側と内側の筒状部材の軸線方向での動きを防止するための装置として、従来から、外側筒状部材の直径方向で対向する位置にスリットを設け、内側筒状部材の外表面に係合溝を形成し、外側筒状部材の外側から固定部材を取り付け、該固定部材の一対の弾性アームを外側筒状部材の外側から両スリットを通して内側筒状部材の外周面の係合溝に係合することにより外側及び内側筒状部材の軸線方向での相対的動きを阻止するようにしたものが従来から知られている。（例えば、特許文献１乃至４参照）   As a device for preventing the axial movement of the outer and inner cylindrical members arranged coaxially as in the relationship between the sleeve and the female pipe joint, the diameter direction of the outer cylindrical member has been conventionally used. Are provided with slits at opposing positions, an engagement groove is formed on the outer surface of the inner cylindrical member, a fixing member is attached from the outer side of the outer cylindrical member, and a pair of elastic arms of the fixing member are attached to the outer cylindrical member. Conventionally known is an arrangement in which relative movement in the axial direction of the outer and inner cylindrical members is prevented by engaging the engaging grooves on the outer peripheral surface of the inner cylindrical member through both slits from the outside. . (For example, see Patent Documents 1 to 4)

しかしながら、前述した、施錠子をその施錠位置に保持するためにスリーブと雌型管継手との間の軸線方向での動きを適切に阻止するものは開発されていない。   However, what has been described above that appropriately prevents the movement in the axial direction between the sleeve and the female pipe joint in order to hold the lock in the locked position has not been developed.

特開平１１−２１８２８３JP-A-11-218283 特開平０６−５０４８４JP 06-50484 特公昭５０−３９８６１Japanese Patent Publication No. 50-39861 実開平０１−８５５９７Japanese Utility Model Kohei 01-85597

本発明は、上述のごとき管継手におけるスリーブを、その施錠位置に保持するための手段を備えた雌型管継手を提供することを目的としている。   It is an object of the present invention to provide a female pipe joint provided with means for holding the sleeve of the pipe joint as described above in its locked position.

すなわち、本発明は、
一端開口から雄型管継手を受け入れるようにされた筒状の雌型管継手本体と、
該雌型管継手本体を半径方向で貫通するように形成された貫通孔に半径方向で変位可能に設定された施錠子であって、雄型管継手が該雌型管継手本体の該一端開口から軸線方向で挿入されたときに、該雄型管継手の外周面に形成された施錠凹部に嵌合されて、該雄型管継手が該雌型管継手本体に対して軸線方向で変位しないように施錠する施錠位置と、該施錠位置から半径方向外側に変位して該施錠凹部から外れて該雄型管継手が該雌型管継手本体から引き出されるのを許容する解放位置との間で変位可能な施錠子と、
雌型管継手本体の外周面上に軸線方向で摺動可能に設定されたスリーブであって、該施錠子を半径方向外側から押圧して施錠位置とする施錠子押圧位置と、該施錠子が半径方向外側に変位して該解放位置となるのを許容する施錠子解放位置との間で変位可能なスリーブと、
を有する雌型管継手であって、
該スリーブが、その直径方向で対向する当該スリーブの両側部分に接線方向に相互に平行に切り込まれ、該スリーブの内周面と交差して当該スリーブを半径方向で貫通する開口を形成するスリットを有し、
雌型管継手本体が、その外周面にその周方向に沿って形成された係合溝を有し、
当該雌型管継手が、更に、該スリーブに取り付けられたスリーブ固定部材であって、該スリーブの該スリット内に延びる係合アーム部を有し、該アーム部が該雌型管継手本体の外周面の該係合溝に係合して該スリーブが該雌型管継手本体に対して軸線方向で相対的に変位しないようにするスリーブ固定位置と、該スリットの延びる該接線方向で該固定位置から変位され該アーム部が該雌型管継手本体の外周面の該係合溝からはずれることにより、該スリーブが該雌型管継手本体に対して軸線方向で変位可能とするスリーブ解放位置との間で変位可能とされたスリーブ固定部材と、
該スリーブ固定部材を該スリーブ解放位置から該スリーブ固定位置に向けて付勢する付勢部材と
を有することを特徴とするスリーブ固定部材を備えた雌型管継手を提供する。 That is, the present invention
A cylindrical female fitting body adapted to receive a male fitting from one end opening;
A lock element set so as to be displaceable in a radial direction in a through hole formed so as to penetrate the female pipe main body in a radial direction, wherein the male pipe joint is open at the one end of the female pipe main body. Is inserted into the locking recess formed on the outer peripheral surface of the male pipe joint so that the male pipe joint is not displaced in the axial direction with respect to the female pipe body. Between the locking position and the release position allowing the male fitting to be pulled out of the female fitting body by moving radially outward from the locking position and coming out of the locking recess. A displaceable locker;
A sleeve set so as to be slidable in the axial direction on the outer peripheral surface of the female pipe fitting main body, wherein the locking element is pressed from the outside in the radial direction to set the locking position; and A sleeve that is displaceable between a lock release position that allows radially outward displacement and the release position;
A female pipe joint having
A slit in which the sleeve is cut parallel to each other in a tangential direction on both side portions of the sleeve facing in the diametrical direction, and forms an opening that intersects the inner peripheral surface of the sleeve and penetrates the sleeve in the radial direction Have
The female pipe fitting body has an engaging groove formed along the circumferential direction on the outer circumferential surface thereof,
The female pipe joint is a sleeve fixing member attached to the sleeve, and further has an engagement arm portion extending into the slit of the sleeve, and the arm portion is an outer periphery of the female pipe joint body. A sleeve fixing position that engages with the engaging groove of the surface so that the sleeve is not displaced relative to the female pipe fitting body in the axial direction; and the fixed position in the tangential direction in which the slit extends. The sleeve is disengaged from the engagement groove on the outer peripheral surface of the female pipe fitting body and the sleeve is displaceable in the axial direction relative to the female pipe fitting body. A sleeve fixing member that is displaceable between,
And a biasing member for biasing the sleeve fixing member from the sleeve release position toward the sleeve fixing position. A female pipe joint having a sleeve fixing member is provided.

具体的には、
該固定部材が、該係合アーム部と、該アーム部をその一端で連結する連結部とを有する全体的にC字状とされたスリーブ固定部材であって、該アーム部が該連結部から延びる方向に変位することにより該固定位置から該スリーブ解放位置に変位されるようにすることができる。 In particular,
The fixing member is a generally C-shaped sleeve fixing member having the engaging arm portion and a connecting portion for connecting the arm portion at one end, and the arm portion is separated from the connecting portion. By displacing in the extending direction, the sleeve can be displaced from the fixed position to the sleeve releasing position.

より具体的には、
該スリットが、該スリーブの外周面から該接線方向で切り込まれた形状とされ、該固定部材のアーム部が該スリーブの外側から該スリット内に入り、該開口を通して雌型管継手本体の外周面の該係合溝と係合するようにすることができる。 More specifically,
The slit has a shape cut in the tangential direction from the outer peripheral surface of the sleeve, the arm portion of the fixing member enters the slit from the outside of the sleeve, and the outer periphery of the female pipe fitting main body through the opening. It can be made to engage with the engaging groove of the surface.

本発明はまた、
一端開口から雄型管継手を受け入れるようにされた筒状の雌型管継手本体と、
該雌型管継手本体を半径方向で貫通するように形成された貫通孔に半径方向で変位可能に設定された施錠子であって、雄型管継手が該雌型管継手本体の該一端開口から軸線方向で挿入されたときに、該雄型管継手の外周面に形成された施錠凹部に嵌合されて、該雄型管継手が該雌型管継手本体に対して軸線方向で変位しないように施錠する施錠位置と、該施錠位置から半径方向外側に変位して該施錠凹部から外れて該雄型管継手が該雌型管継手本体から引き出されるのを許容する解放位置との間で変位可能な施錠子と、
雌型管継手本体の外周面上に軸線方向で摺動可能に設定されたスリーブであって、該施錠子を半径方向外側から押圧して施錠位置とする施錠子押圧位置と、該施錠子が半径方向外側に変位して該解放位置となるのを許容する施錠子解放位置との間で変位可能なスリーブと、
を有する雌型管継手であって、
該スリーブが、該スリーブをその軸線に略直交する平面に沿って貫通するスリットであって、当該スリーブが該スリットの両側位置に残された相互に対向する壁部分を有するように形成されたスリットを有し、
雌型管継手本体が、その外周面にその周方向に沿って形成された係合溝を有し、
当該雌型管継手が、更に、該スリット内で変位可能とされた環状のスリーブ固定部材であって、雌型管継手の外周を囲うようなサイズの内周縁を有し、該内周縁の一部分が該雌型管継手本体の外周面の該係合溝に係合して該スリーブが該雌型管継手本体に対して軸線方向で変位しないようにするスリーブ固定位置と、該スリーブの対向する壁部分を結ぶ線に対して直交する方向において該スリット内で該スリーブ固定位置から変位されて該内周縁の一部分が該係合溝からはずれることにより、該スリーブが該雌型管継手本体に対してその軸線方向で変位可能とするスリーブ解放位置との間で変位可能とされたスリーブ固定部材と、
該スリーブ固定部材を該スリーブ解放位置から該スリーブ固定位置に向けて付勢する付勢部材と
を有することを特徴とするスリーブ固定部材を備えた雌型管継手を提供する。 The present invention also provides
A cylindrical female fitting body adapted to receive a male fitting from one end opening;
A lock element set so as to be displaceable in a radial direction in a through hole formed so as to penetrate the female pipe main body in a radial direction, wherein the male pipe joint is open at the one end of the female pipe main body. Is inserted into the locking recess formed on the outer peripheral surface of the male pipe joint so that the male pipe joint is not displaced in the axial direction with respect to the female pipe body. Between the locking position and the release position allowing the male fitting to be pulled out of the female fitting body by moving radially outward from the locking position and coming out of the locking recess. A displaceable locker;
A sleeve set so as to be slidable in the axial direction on the outer peripheral surface of the female pipe fitting main body, wherein the locking element is pressed from the outside in the radial direction to set the locking position; and A sleeve that is displaceable between a lock release position that allows radially outward displacement and the release position;
A female pipe joint having
The sleeve is a slit that passes through the sleeve along a plane substantially perpendicular to the axis thereof, and the slit is formed so that the sleeve has mutually facing wall portions left on both sides of the slit. Have
The female pipe fitting body has an engaging groove formed along the circumferential direction on the outer circumferential surface thereof,
The female pipe joint is further an annular sleeve fixing member that is displaceable in the slit, and has an inner periphery that surrounds the outer periphery of the female pipe joint, and a part of the inner periphery. A sleeve fixing position where the sleeve is engaged with the engaging groove on the outer peripheral surface of the female pipe fitting main body so that the sleeve is not displaced in the axial direction with respect to the female pipe fitting main body. The sleeve is displaced from the sleeve fixing position in the slit in a direction perpendicular to the line connecting the wall portions, and a part of the inner peripheral edge is disengaged from the engagement groove, whereby the sleeve is moved relative to the female pipe fitting body. A sleeve fixing member that is displaceable between a sleeve release position that is displaceable in the axial direction of the lever,
And a biasing member for biasing the sleeve fixing member from the sleeve release position toward the sleeve fixing position. A female pipe joint having a sleeve fixing member is provided.

具体的には、この雌型管継手では、該相互に対向する壁部分が、該スリーブ固定部材の変位方向で延びる互いに平行な内面を有し、スリーブ固定部材の外周面は、該内面と摺動する互いに平行な面を有するようにすることができる。   Specifically, in this female pipe joint, the mutually facing wall portions have mutually parallel inner surfaces extending in the displacement direction of the sleeve fixing member, and the outer peripheral surface of the sleeve fixing member slides on the inner surface. It is possible to have moving surfaces parallel to each other.

雌型管継手本体には、その外周面に、スリーブが施錠子解放位置とされたときに、該スリーブ固定部材と軸線方向で整合されて係合可能とされた環状の第２の係合溝を設けることもできる。スリーブ固定部材を第２の係合溝に係合することによりスリーブを施錠子解放位置に固定することができるので、雄型管継手を挿入するときの操作がしやすくなる。   An annular second engaging groove that is axially aligned with and can be engaged with the sleeve fixing member when the sleeve is in the lock release position on the outer peripheral surface of the female pipe fitting main body. Can also be provided. Since the sleeve can be fixed at the lock release position by engaging the sleeve fixing member with the second engagement groove, the operation for inserting the male pipe fitting is facilitated.

本発明に係る雌型管継手においては、上述の通りのスリーブ固定部材を備えるものであり、施錠子を用いて雄型管継手との連結固定をより確実に行うことを可能としている。また、第２の係合溝を設けることにより、スリーブを施錠子解放位置に固定することができるので、雄型管継手を挿入するときの操作がしやすくなる。   In the female pipe joint according to the present invention, the sleeve fixing member as described above is provided, and the locking with the male pipe joint can be more reliably performed using the lock. Also, since the sleeve can be fixed at the lock release position by providing the second engagement groove, the operation when inserting the male pipe joint is facilitated.

本発明の第１実施形態に係る雌型管継手に雄型管継手を挿入連結した状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state which inserted and connected the male pipe joint to the female pipe joint which concerns on 1st Embodiment of this invention. 同実施形態に係る雌型管継手であって、スリーブが施錠子押圧位置にあり且つスリーブ固定部材がスリーブ固定位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）における２ｂ−２ｂ線断面図である。FIG. 2 is a female pipe joint according to the same embodiment, showing a state in which the sleeve is in the locking element pressing position and the sleeve fixing member is in the sleeve fixing position, (a) is a longitudinal sectional view, and (b) is (a). It is a 2b-2b sectional view taken on the line. 同実施形態に係る雌型管継手であって、スリーブが施錠子押圧位置にあり且つスリーブ固定部材がスリーブ解放位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）における３ｂ−３ｂ線断面図である。The female pipe joint according to the embodiment shows a state in which the sleeve is in the locking element pressing position and the sleeve fixing member is in the sleeve releasing position, (a) is a longitudinal sectional view, and (b) is (a). It is a 3b-3b sectional view taken on the line. スリーブ固定部材が、図３と同じ状態にあり、スリーブが施錠子押圧位置から施錠子解放位置に変位された状態を示し、（ａ）は縦断面図、（ｂ）は４ｂ−４ｂ線断面図である。3 shows a state in which the sleeve fixing member is in the same state as FIG. 3 and the sleeve is displaced from the locking element pressing position to the locking element releasing position, (a) is a longitudinal sectional view, and (b) is a sectional view taken along line 4b-4b. It is. 第１実施形態に係る雌型管継手におけるスリーブ固定部材を示し、（ａ）は平面図、（ｂ）は側面図、（ｃ）は正面図を示す。The sleeve fixing member in the female pipe joint which concerns on 1st Embodiment is shown, (a) is a top view, (b) is a side view, (c) shows a front view. 第１実施形態の変形例に係る雌型管継手に雄型管継手を挿入連結した状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state which inserted and connected the male pipe joint to the female pipe joint which concerns on the modification of 1st Embodiment. 同変形例に係る雌型管継手であって、スリーブが施錠子押圧位置にあり且つスリーブ固定部材がスリーブ固定位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）における７ｂ−７ｂ線断面図である。The female pipe joint according to the modified example shows a state in which the sleeve is in the locking element pressing position and the sleeve fixing member is in the sleeve fixing position, (a) is a longitudinal sectional view, and (b) is (a). FIG. 7 is a cross-sectional view taken along line 7b-7b. 同変形例に係る雌型管継手であって、スリーブが施錠子押圧位置にあり且つスリーブ固定部材がスリーブ解放位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）における８ｂ−８ｂ線断面図である。The female pipe joint according to the modified example shows a state in which the sleeve is in the locking element pressing position and the sleeve fixing member is in the sleeve releasing position, (a) is a longitudinal sectional view, and (b) is (a). FIG. 8 is a cross-sectional view taken along line 8b-8b. 同変形例に係る雌型管継手であって、スリーブが施錠子解放位置にあり且つスリーブ固定部材がスリーブ解放位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）における９ｂ−９ｂ線断面図である。The female pipe joint according to the modified example shows a state where the sleeve is in the lock release position and the sleeve fixing member is in the sleeve release position, (a) is a longitudinal sectional view, and (b) is (a). It is a 9b-9b sectional view taken on the line. スリーブが施錠子解放位置にあり、スリーブ固定部材が第２のスリーブ固定位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）の１０ｂ−１０ｂ線断面図である。The sleeve is in the locking element release position, and the sleeve fixing member is in the second sleeve fixing position, (a) is a longitudinal sectional view, and (b) is a sectional view taken along line 10b-10b in (a). 本発明の第２実施形態に係る雌型管継手に雄型管継手を挿入連結した状態を示し、（ａ）は縦断面図、（ｂ）は１１ｂ−１１ｂ線断面図である。The state which inserted and connected the male pipe joint to the female pipe joint which concerns on 2nd Embodiment of this invention is shown, (a) is a longitudinal cross-sectional view, (b) is a 11b-11b sectional view taken on the line. 第２実施形態に係る雌型管継手であって、スリーブが施錠子押圧位置にあり且つスリーブ固定部材がスリーブ解放位置にある状態を示し、（ａ）は縦断面図、（ｂ）は（ａ）における１２ｂ−１２ｂ線断面図である。It is a female pipe joint which concerns on 2nd Embodiment, Comprising: A sleeve is in a locking element press position, and the state which has a sleeve fixing member in a sleeve release position is shown, (a) is a longitudinal cross-sectional view, (b) is (a It is a 12b-12b sectional view taken on the line in FIG. 第２実施形態に係る雌型管継手におけるスリーブ固定部材を示し、（ａ）は平面図、（ｂ）は側面図、（ｃ）は正面図を示す。The sleeve fixing member in the female pipe joint which concerns on 2nd Embodiment is shown, (a) is a top view, (b) is a side view, (c) shows a front view.

以下、本発明の実施形態を添付図面に基づき説明する。
図１は、本発明の第１の実施形態に係る雌型管継手１０と雄型管継手１４からなる管継手を示している。雌型管継手１０は、図で見て右端にある開口１１から雄型管継手１４を受け入れるようにされた筒状の雌型管継手本体１６と、該雌型管継手本体１６を半径方向で貫通するように形成された貫通孔１８に半径方向で変位可能に設けられた施錠子２０であって、雄型管継手１４が雌型管継手本体１６に挿入されたときに、該雄型管継手１４の外周面に形成されている施錠凹部２２に嵌合されて、雄型管継手１４を雌型管継手本体１６に対して施錠する施錠位置と、該施錠位置から半径方向外側に変位して施錠凹部２２から外れて雄型管継手１４が雌型管継手本体１６から引き出されるのを許容する解放位置との間で変位可能な施錠子２０と、雌型管継手本体１６の外周面上で軸線方向で摺動可能に設定されたスリーブ２６であって、施錠子２０を半径方向外側から押圧して施錠位置とする施錠子押圧位置（図１乃至図３）と、施錠子２０が半径方向外側に変位して雄型管継手が雌型管継手から解放位置となるのを許容する施錠子解放位置（図４）との間で変位可能なスリーブ２６とを有する。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a pipe joint composed of a female pipe joint 10 and a male pipe joint 14 according to the first embodiment of the present invention. The female pipe joint 10 includes a cylindrical female pipe main body 16 configured to receive a male pipe joint 14 from an opening 11 at the right end as viewed in the figure, and the female pipe joint main body 16 in the radial direction. A locker 20 provided in a through hole 18 formed so as to penetrate therethrough so as to be displaceable in the radial direction. When the male pipe joint 14 is inserted into the female pipe body 16, the male pipe The locking position is engaged with the locking recess 22 formed on the outer peripheral surface of the joint 14 to lock the male pipe joint 14 with respect to the female pipe body 16, and is displaced radially outward from the locking position. On the outer peripheral surface of the female pipe fitting main body 16 and the lock 20 that can be displaced between the release position allowing the male pipe fitting 14 to be pulled out of the female pipe fitting main body 16 by detaching from the locking recess 22. The sleeve 26 is set so as to be slidable in the axial direction. The locking element pressing position (FIGS. 1 to 3) that is pressed from the outside in the radial direction to be the locking position, and the locking element 20 is displaced outward in the radial direction so that the male pipe joint is released from the female pipe joint. And a sleeve 26 that is displaceable between the lock release position (FIG. 4).

スリーブ２６には、その外周面に環状溝２８と、該環状溝２８と該スリーブの軸線方向で整合され、当該スリーブの両側位置を接線方向に延びるように形成され、当該該スリーブの内周面２８−１と交差して当該スリーブを半径方向で貫通する開口を形成するスリット３０とが形成されている。   The sleeve 26 is formed with an annular groove 28 on the outer peripheral surface thereof, aligned with the annular groove 28 in the axial direction of the sleeve, and extending on both sides of the sleeve in a tangential direction, and an inner peripheral surface of the sleeve. A slit 30 is formed so as to intersect with 28-1 and form an opening penetrating the sleeve in the radial direction.

スリーブ２６の環状溝２８の周りには、全体としてＣ字状とされたスリーブ固定部材３２が設定されている。該スリーブ固定部材３２は、スリーブ２６のスリット３０内に延び、雌型管継手本体１６の外周面に向けて延びた係合アーム部３４と、該アーム部をその一端で連結する連結部３６とを有している。該スリーブ固定部材３２は、アーム部３４の先端部分３４−１が雌型管継手本体１６の外周面に形成されている環状の係合溝４２に係合してスリーブ２６が雌型管継手本体１６に対して軸線方向で相対的に変位しないようにするスリーブ固定位置（図１、図２）と、連結部３６からアーム部３４が延びる方向でスリーブ固定位置から変位され、アーム部３４の先端部分３４−１がスリーブ２６のスリット３０を画定しているスリット底壁面３０−１上を摺動することにより雌型管継手本体１６の係合溝４２から外れて、該スリーブが雌型管継手本体１６に対して軸線方向で相対的に変位可能とするスリーブ解放位置（図３、図４）との間で変位可能とされている。図示の実施形態では、スリーブ固定部材３２は、連結部３６からスリーブの後方に向けて延びる部分３６−１を有しており、該部分とスリーブとの間に設定されたコイルばね４４により、スリーブ固定位置（図１、図２）に付勢されている。図示の例では、該コイルばね４４の一端は、スリーブの外周面に形成された凹部に嵌合されている。   A sleeve fixing member 32 having a C-shape as a whole is set around the annular groove 28 of the sleeve 26. The sleeve fixing member 32 extends into the slit 30 of the sleeve 26 and extends toward the outer peripheral surface of the female pipe fitting main body 16; and a connecting portion 36 that connects the arm portion at one end thereof. have. In the sleeve fixing member 32, the distal end portion 34-1 of the arm portion 34 is engaged with an annular engagement groove 42 formed on the outer peripheral surface of the female pipe fitting main body 16, and the sleeve 26 is a female pipe fitting main body. The sleeve fixing position (FIGS. 1 and 2) that prevents relative displacement in the axial direction with respect to 16 and the arm fixing position in the direction in which the arm portion 34 extends from the connecting portion 36, the tip of the arm portion 34 When the portion 34-1 slides on the slit bottom wall surface 30-1 defining the slit 30 of the sleeve 26, the portion 34-1 is disengaged from the engagement groove 42 of the female pipe fitting body 16, and the sleeve is connected to the female pipe fitting. It can be displaced with respect to the sleeve release position (FIGS. 3 and 4) that can be displaced relative to the main body 16 in the axial direction. In the illustrated embodiment, the sleeve fixing member 32 has a portion 36-1 that extends from the coupling portion 36 toward the rear of the sleeve, and a coil spring 44 set between the portion and the sleeve causes the sleeve to be fixed. It is biased to a fixed position (FIGS. 1 and 2). In the illustrated example, one end of the coil spring 44 is fitted into a recess formed on the outer peripheral surface of the sleeve.

図６乃至図１０は、図１乃至図５に示した第１の実施形態の変形例に係る雌型管継手が示されている。この雌型管継手において第１の実施形態のものと異なるところは、雌型管継手本体１６がその外周面に環状の第２の係合溝４２−２を有することである。すなわち、この雌型管継手においては、スリーブ２６を図４と同様の施錠子解放位置としたときに、スリーブ固定部材３２が該第２の係合溝４２−２と軸線方向で整合され、バネ４４の作用により、スリーブ固定部材３２がスリーブ固定位置（図６）に持ち上げられて、当該スリーブ固定部材３２のアーム部３４が該第２の係合溝４２−２に係合して、スリーブ２６を施錠子解放位置に固定するようになっている。雄型管継手を雌型管継手に挿入するときには、スリーブをこのようにして施錠子解放位置にしておき、雄型管継手が雌型管継手内に挿入されたあとに、スリーブ固定部材３２を押し下げてアーム部３４を第２の係合溝から外し、該スリーブを図１に示したと同様の施錠子押圧位置まで変位させて、スリーブ固定部材３２をスリーブ固定位置とする。   6 to 10 show a female pipe joint according to a modification of the first embodiment shown in FIGS. 1 to 5. The difference between this female pipe joint and that of the first embodiment is that the female pipe joint body 16 has an annular second engaging groove 42-2 on its outer peripheral surface. That is, in this female pipe joint, when the sleeve 26 is set to the lock release position similar to that in FIG. 4, the sleeve fixing member 32 is aligned with the second engagement groove 42-2 in the axial direction, and the spring 44, the sleeve fixing member 32 is lifted to the sleeve fixing position (FIG. 6), and the arm portion 34 of the sleeve fixing member 32 is engaged with the second engaging groove 42-2, so that the sleeve 26 Is fixed to the lock release position. When inserting the male pipe fitting into the female pipe fitting, the sleeve is thus placed in the lock release position, and after the male pipe fitting is inserted into the female pipe fitting, the sleeve fixing member 32 is moved. The arm part 34 is removed from the second engagement groove by being pushed down, and the sleeve is displaced to the same locking element pressing position as shown in FIG. 1, so that the sleeve fixing member 32 is set to the sleeve fixing position.

図１１乃至図１３に示す第２の実施形態では、スリーブ固定部材１３２が環状にされており、スリーブ１２６には、図１１及び図１２の（ｂ）で見て、両側の壁部分１２６−１を残して、上下に貫通するスリット１３０が形成されている。スリーブ固定部材１３２は雌型管継手本体１１６を囲うようなサイズの円形の内周面１３２−１と、相互に平行な面１３２−２を有する外周面とを有しており、スリーブ固定部材１３２の内周部分の一部（図示の例では下方中央部分）が雌型管継手本体１１６の外周面の係合溝１４２に係合して該スリーブ１２６が該雌型管継手本体１１６に対して軸線方向で変位しないようにするスリーブ固定位置（図１１）と、該スリット内でスリーブ固定位置から下方に変位されて内周部分の一部分が係合溝１４２からはずれることにより、スリーブ１２６が該雌型管継手本体１１６に対してその軸線方向で変位可能とするスリーブ解放位置（図１２）との間で変位可能とされている。スリーブ１２６の両側の壁部分１２６−１は、スリーブ固定部材１３２の外周面の平行な面１３２−２と摺動係合された平行な内側面１２６−２を有している。   In the second embodiment shown in FIGS. 11 to 13, the sleeve fixing member 132 is formed in an annular shape, and the sleeve 126 includes a wall portion 126-1 on both sides as seen in FIG. 11 and FIG. A slit 130 penetrating up and down is formed. The sleeve fixing member 132 has a circular inner peripheral surface 132-1 sized to surround the female pipe fitting main body 116 and an outer peripheral surface having surfaces 132-2 parallel to each other. A part of the inner peripheral portion (the lower central portion in the illustrated example) engages with the engaging groove 142 on the outer peripheral surface of the female pipe fitting body 116, so that the sleeve 126 is in contact with the female pipe fitting main body 116. A sleeve fixing position (FIG. 11) that prevents displacement in the axial direction, and a portion of the inner peripheral portion is displaced from the engagement groove 142 by being displaced downward from the sleeve fixing position in the slit, so that the sleeve 126 moves to the female groove. It is possible to displace between a sleeve release position (FIG. 12) that enables displacement in the axial direction with respect to the mold fitting main body 116. The wall portions 126-1 on both sides of the sleeve 126 have parallel inner side surfaces 126-2 that are slidably engaged with parallel surfaces 132-2 of the outer peripheral surface of the sleeve fixing member 132.

この実施形態においても、スリーブ固定部材１３２は、コイルばね１４４によりスリーブ固定位置（図１１）に付勢され、該コイルばねに抗して押し下げられることによりスリーブ開放位置（図１２）となるようにされている。   Also in this embodiment, the sleeve fixing member 132 is urged to the sleeve fixing position (FIG. 11) by the coil spring 144 and is pushed down against the coil spring to be in the sleeve open position (FIG. 12). Has been.

雌型管継手１０；開口１１；雄型管継手１４；雌型管継手本体１６；貫通孔１８；施錠子２０；施錠凹部２２；スリーブ２６；環状溝２８；内周面２８−１；スリット３０；スリット底壁面３０−１；スリーブ固定部材３２；係合アーム部３４；連結部３６；（アーム部の）先端部分３４−１；部分３６−１；係合溝４２；第２の係合溝４２−２；コイルばね４４；雌型管継手１１０；雌型管継手本体１１６；スリーブ１２６；スリット１３０；スリーブ固定部材１３２；係合溝１４２；コイルばね１４４
Female pipe joint 10; opening 11; male pipe joint 14; female pipe joint body 16; through hole 18; lock 20; lock recess 22; sleeve 26; annular groove 28; Slit bottom wall surface 30-1; sleeve fixing member 32; engagement arm portion 34; coupling portion 36; tip portion 34-1 (of the arm portion); portion 36-1; engagement groove 42; 42-2; coil spring 44; female pipe joint 110; female pipe joint body 116; sleeve 126; slit 130; sleeve fixing member 132; engagement groove 142; coil spring 144

Claims (3)

一端開口から円筒状の雄型管継手を受け入れるようにされた円筒状の雌型管継手本体と、
該雌型管継手本体を半径方向で貫通するように形成された貫通孔に半径方向で変位可能に設定された施錠子であって、雄型管継手が該雌型管継手本体の該一端開口から軸線方向で挿入されたときに、該雄型管継手の外周面に形成された施錠凹部に嵌合されて、該雄型管継手が該雌型管継手本体に対して軸線方向で変位しないように施錠する施錠位置と、該施錠位置から半径方向外側に変位して該施錠凹部から外れて該雄型管継手が該雌型管継手本体から引き出されるのを許容する解放位置との間で変位可能な施錠子と、
雌型管継手本体の外周面上に軸線方向で摺動可能に設定された円筒状のスリーブであって、該施錠子を半径方向外側から押圧して施錠位置とする施錠子押圧位置と、該施錠子が半径方向外側に変位して該解放位置となるのを許容する施錠子解放位置との間で変位可能なスリーブと、
を有する雌型管継手であって、
該スリーブが、その直径方向で対向する当該スリーブの両側部分の外周面から半径方向内側に向けて切り込まれ、それぞれ当該スリーブの接線方向に延びて相互に平行にされ、該スリーブの内周面と交差して当該スリーブを半径方向で貫通する開口を形成するスリットを有し、
雌型管継手本体が、その外周面にその周方向に沿って形成された係合溝を有し、
当該雌型管継手が、更に、該スリーブに取り付けられたスリーブ固定部材であって、該スリーブの外側から該スリット内に延びる係合アーム部を有し、該アーム部が該雌型管継手本体の外周面の該係合溝に係合して該スリーブが該雌型管継手本体に対して軸線方向で相対的に変位しないようにするスリーブ固定位置と、該スリットの延びる該接線方向で該固定位置から変位され該アーム部が該雌型管継手本体の外周面の該係合溝からはずれることにより、該スリーブが該雌型管継手本体に対して軸線方向で変位可能とするスリーブ解放位置との間で変位可能とされたスリーブ固定部材と、
該スリーブ固定部材を該スリーブ解放位置から該スリーブ固定位置に向けて付勢する付勢部材と
を有し、
該スリーブ固定部材が、該スリーブの外側位置にある連結部と、該連結部の両端から延びて対応する該スリット内に入り該雌型管継手本体の両側外側を延びる一対の係合アーム部とを有し、該一対の係合アーム部はそれぞれ相互に向き合う方向に曲げられた先端部分を有し、
該スリーブ固定部材は、該付勢部材によって付勢され当該スリーブ固定部材の該一対の係合アーム部の該先端部分がそれぞれ該雌型継手本体の該係合溝に係合して該スリーブ固定位置とされ、該付勢部材の付勢力に抗して、該係合アーム部が該連結部から延びる方向に変位されることにより該係合アーム部の該先端部分が該係合溝から外れて該スリーブ解放位置とされるようにされていることを特徴とする雌型管継手。 A circular cylindrical female fitting body adapted to receive a cylindrical male fitting from one end opening,
A lock element set so as to be displaceable in a radial direction in a through hole formed so as to penetrate the female pipe main body in a radial direction, wherein the male pipe joint is open at the one end of the female pipe main body. Is inserted into the locking recess formed on the outer peripheral surface of the male pipe joint so that the male pipe joint is not displaced in the axial direction with respect to the female pipe body. Between the locking position and the release position allowing the male fitting to be pulled out of the female fitting body by moving radially outward from the locking position and coming out of the locking recess. A displaceable locker;
A cylindrical sleeve set so as to be slidable in the axial direction on the outer peripheral surface of the female pipe fitting main body, the locking element pressing position for pressing the locking element from the outside in the radial direction and setting the locking position; A sleeve that is displaceable between a lock release position that allows the lock to be displaced radially outward to the release position;
A female pipe joint having
The sleeves are cut radially inward from the outer peripheral surfaces of both side portions of the sleeve, which are diametrically opposed , and extend in the tangential direction of the sleeves to be parallel to each other. Having a slit that intersects with and forms an opening through the sleeve in the radial direction;
The female pipe fitting body has an engaging groove formed along the circumferential direction on the outer circumferential surface thereof,
The female pipe joint is a sleeve fixing member attached to the sleeve, and further has an engagement arm portion extending from the outside of the sleeve into the slit, and the arm portion is the female pipe main body. A sleeve fixing position that engages with the engaging groove on the outer peripheral surface of the female pipe joint so that the sleeve does not displace relative to the female pipe fitting body in the axial direction, and the tangential direction in which the slit extends. A sleeve release position in which the sleeve is displaceable in the axial direction with respect to the female pipe fitting body when the arm portion is displaced from the fixed position and is disengaged from the engagement groove on the outer peripheral surface of the female pipe fitting body. A sleeve fixing member displaceable between
The sleeve fixation member have a biasing member for urging the said sleeve fixed position from the sleeve release position,
And a pair of engaging arm portions extending from both ends of the connecting portion and entering the corresponding slits and extending on both sides of the female pipe fitting main body. Each of the pair of engaging arm portions has a tip portion bent in a direction facing each other,
The sleeve fixing member is urged by the urging member, and the distal end portions of the pair of engagement arm portions of the sleeve fixing member are engaged with the engagement grooves of the female joint body, respectively. The engagement arm portion is displaced in a direction extending from the coupling portion against the urging force of the urging member, so that the tip end portion of the engagement arm portion is disengaged from the engagement groove. A female pipe joint characterized in that the sleeve is in the release position . 該アームは全体的にC字状とされている請求項１に記載の雌型管継手。 2. The female pipe joint according to claim 1, wherein the arm is generally C-shaped. 該スリットが、それぞれ、該スリーブの外周面から該接線方向で切り込まれた形状とされ、当該スリーブの軸線方向において相互に対向する面と、該スリーブの該開口の該接線方向両側で該接線方向に延びる面によって画定されており、
該係合アーム部は、それぞれ、該スリーブ固定部材が該スリーブ固定位置とスリーブ開放位置との間で変位されるときに、該接線方向に延びる面と摺動する面を有するようにされている請求項１又は２に記載の雌型管継手。 Each of the slits has a shape cut in the tangential direction from the outer peripheral surface of the sleeve , and the tangent line is formed on a surface opposite to each other in the axial direction of the sleeve and on both sides of the opening of the sleeve. Defined by a surface extending in a direction,
The engaging arm portions each have a surface that slides with a surface that extends in the tangential direction when the sleeve fixing member is displaced between the sleeve fixing position and the sleeve opening position. The female pipe joint according to claim 1 or 2 .
JP2009095868A 2009-04-10 2009-04-10 Female pipe fitting with sleeve fixing member Active JP5481090B2 (en)

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