JP6202794B2

JP6202794B2 - Connecting member

Info

Publication number: JP6202794B2
Application number: JP2012209040A
Authority: JP
Inventors: 博之川尻; 正年渡邊
Original assignee: Kawasumi Laboratories Inc
Current assignee: Kawasumi Laboratories Inc
Priority date: 2011-10-05
Filing date: 2012-09-24
Publication date: 2017-09-27
Anticipated expiration: 2032-09-24
Also published as: JP2013090914A; JP2017000831A

Description

本発明は、固定具付の接続部材の改良に関する。接続部材の接続部を固定具で締め付けた後も、固定具の締め付けが緩んだり外れることのない接続部材に関する。本願の接続部材は、血液の体外循環回路、カテーテル類、輸液・輸血セット等の医療用具に使用される。
固定具とは、例えば「ルアーロック」と称するものを意味するが、「ルアーロック」と同等の機能を有するものは全て含まれる。
接続部材とは、例えば「オスコネクタとメスコネクタ」と称するコンビネーション部材を意味するが、これらと同等の機能を有するものは全て含まれる。 The present invention relates to an improvement of a connection member with a fixture. The present invention relates to a connection member that does not loosen or come off the fastening of the fixture even after the connection portion of the connection member is fastened with the fixture. The connecting member of the present application is used for medical devices such as an extracorporeal circuit for blood, catheters, infusion / transfusion sets.
The fixture means, for example, what is referred to as a “luer lock”, but includes anything having a function equivalent to that of a “luer lock”.
The connection member means, for example, a combination member called “male connector and female connector”, but all members having functions equivalent to these are included.

図１４は、公知の接続部材５１とその使用状態図である。
図１４（Ａ）（オスコネクタとメスコネクタの接続前）に例示するように接続部材５１は、オスコネクタ５２と固定具６０とメスコネクタ６５とから構成される。
図１４に例示するように、接続部材５１を構成するオスコネクタ５２、固定具６０、メスコネクタ６５等の管状（またはチューブ状、筒状という場合もある）の部材ないし当該管状の部材の形態を一部でも含む各構成部品は、長手方向と当該長手方向に略垂直に交差する側部（外周）方向とを有する。 FIG. 14 is a diagram showing a known connecting member 51 and its use state.
As illustrated in FIG. 14A (before connection of the male connector and the female connector), the connection member 51 includes a male connector 52, a fixture 60, and a female connector 65.
As illustrated in FIG. 14, a tubular member (or a tube shape or a tube shape in some cases) such as a male connector 52, a fixing tool 60, and a female connector 65 constituting the connection member 51 or a form of the tubular member. Each component including even a part has a longitudinal direction and a side (outer periphery) direction that intersects the longitudinal direction substantially perpendicularly.

オスコネクタ５２の長手方向は、メスコネクタ６５と接続する際に、メスコネクタ６５に近い端部を第１端部、メスコネクタ６５から遠い端部を第２端部として記載する。
メスコネクタ６５の長手方向は、オスコネクタ５２と接続する際に、オスコネクタ５２に近い端部を第２端部、オスコネクタ５２から遠い端部を第１端部として記載する。
固定具６０の長手方向は、メスコネクタ６５に近い端部を第１端部、メスコネクタ６５から遠い端部を第２端部として記載する。 When the male connector 52 is connected to the female connector 65, the end close to the female connector 65 is described as a first end, and the end far from the female connector 65 is described as a second end.
When the female connector 65 is connected to the male connector 52, an end portion close to the male connector 52 is described as a second end portion, and an end portion far from the male connector 52 is described as a first end portion.
In the longitudinal direction of the fixture 60, an end portion close to the female connector 65 is described as a first end portion, and an end portion far from the female connector 65 is described as a second end portion.

図１４（Ｂ）（接続開始）に例示するように、固定具６０をオスコネクタ５２の第２端部側から側部方向に装着する。
図１４（Ｃ）（固定具で締め付ける状態）に例示するように、オスコネクタ５２の第１端部側とメスコネクタ６５の第２端部側とを接合し、メスコネクタ６５の第２端部側の側部方向に形成した係止部６８を、固定具６０の内壁面に形成した螺子部６１に係止する。さらに固定具６０を右回転させて、螺子部６１により、オスコネクタ５２とメスコネクタ６５の接続部の外周から締め付けて固定するようにしている。
図１４（Ｄ）は固定具の締め付けを緩める状態を示す概略図である。 As illustrated in FIG. 14B (connection start), the fixture 60 is mounted from the second end side of the male connector 52 in the side direction.
As illustrated in FIG. 14C (in a state where it is tightened with a fixture), the first end side of the male connector 52 and the second end side of the female connector 65 are joined, and the second end portion of the female connector 65 is joined. The locking portion 68 formed in the side portion direction is locked to the screw portion 61 formed on the inner wall surface of the fixture 60. Further, the fixing tool 60 is rotated to the right, and is fastened and fixed from the outer periphery of the connection portion between the male connector 52 and the female connector 65 by the screw portion 61.
FIG. 14D is a schematic view showing a state where the fastening of the fixture is loosened.

このように固定具６０を右回転させて、その螺子部６１により、接続部の外周を締め付けているので、（ａ）締め付けが緩すぎると、衝撃や振動を受けた場合、逆方向に回転して、簡単にはずれてしまうことがあった。（ｂ）逆に締め付ける力が強すぎるとオスコネクタ５２とメスコネクタ６５の接続が解除できなくなったり、メスコネクタ６５にひび割れが発生する等の難点があった。（ｃ）固定具６０は、内壁面に形成した螺合部６１とメスコネクタ６５の螺子部６８との摩擦、並びに螺子部６１の後方内壁面とオスコネクタ５２の側部方向に形成した係止部５４との摩擦で固定されているので、緩みやすかった。 Thus, the fixing device 60 is rotated to the right and the outer periphery of the connecting portion is tightened by the screw portion 61. (a) If the tightening is too loose, the screw 60 will rotate in the opposite direction when subjected to impact or vibration. Sometimes, it was easily shifted. (B) On the contrary, if the tightening force is too strong, the connection between the male connector 52 and the female connector 65 cannot be released, and the female connector 65 is cracked. (C) The fixing tool 60 has a friction between the screwing portion 61 formed on the inner wall surface and the screw portion 68 of the female connector 65, and a latch formed in the side direction of the rear inner wall surface of the screw portion 61 and the male connector 52. Since it was fixed by friction with the part 54, it was easy to loosen.

ところで、特許文献１には、ロック部材（固定具）及びコネクタの種類によらず、オスコネクタとメスコネクタとを緩み難く接合することが可能なオスコネクタの発明が記載されている。
すなわち図１５に例示するようにオスコネクタ１０１の第２端部側の側部方向に、拡大部１１５を形成している。図１５では、拡大部１１５の機能がよく理解できるように、拡大部１１５を長手方向きに拡大して記載している。 By the way, Patent Document 1 describes an invention of a male connector capable of joining a male connector and a female connector so as not to loosen, regardless of the types of the lock member (fixing tool) and the connector.
That is, as illustrated in FIG. 15, the enlarged portion 115 is formed in the side portion direction on the second end side of the male connector 101. In FIG. 15, the enlarged portion 115 is shown enlarged in the longitudinal direction so that the function of the enlarged portion 115 can be well understood.

拡大部１１５は、オスコネクタ１０１とメスコネクタ１０３とを嵌合（接合）し、かつロックナット（固定具）１０２とメスコネクタ１０３とが螺合した状態で、ロックナット１０２の第２端部側に形成した貫通孔１０２Ｏを側部方向に押し広げることにより、ロックナットの緩みを防いでいる。
さらにいえば、拡大部１１５は、第２端部方向から第1端部方向へ上る（第１端部方向から第２端部方向へ下る）テーパー１１５Ｔを有している。
ロックナット１０２は、テーパー１１５Ｔに沿って第１端部方向へ移動するときに、オスコネクタとメスコネクタを締め付け、テーパー１１５Ｔに沿って第２端部方向へ移動するときに、オスコネクタとメスコネクタを締め付け状態から緩めるように機能する。 The enlarged portion 115 is a state where the male connector 101 and the female connector 103 are fitted (joined), and the lock nut (fixing tool) 102 and the female connector 103 are screwed together. The lock nut is prevented from loosening by expanding the through hole 102O formed in the side in the side direction.
More specifically, the enlarged portion 115 has a taper 115T that rises from the second end direction toward the first end portion (down from the first end portion direction toward the second end portion).
When the lock nut 102 moves along the taper 115T toward the first end, the male connector and the female connector are tightened, and when moved toward the second end along the taper 115T, the male connector and the female connector Functions to loosen from the tightened state.

特開２００７−３３０３４号公報（図１、図２）JP 2007-33034 A (FIGS. 1 and 2)

公知の接続部材５１は、（ａ）締め付けが緩すぎると、衝撃や振動を受けた場合、逆方向に回転して、簡単にはずれてしまう。（ｂ）逆に締め付ける力が強すぎるとオスコネクタ５２とメスコネクタ６５の接続が解除できなくなったり、メスコネクタ６５にひび割れが発生する。（ｃ）内壁面に形成した螺合部６１とメスコネクタ６５の螺子部６８との摩擦、並びに螺子部６１の後方内壁面とオスコネクタ５２の側部方向に形成した係止部５４との摩擦で固定されているので、緩みやすかった。 When the known connecting member 51 is (a) too tight, if it receives an impact or vibration, it rotates in the opposite direction and easily deviates. (B) On the contrary, if the tightening force is too strong, the connection between the male connector 52 and the female connector 65 cannot be released or the female connector 65 is cracked. (C) Friction between the screwing portion 61 formed on the inner wall surface and the screw portion 68 of the female connector 65, and friction between the rear inner wall surface of the screw portion 61 and the locking portion 54 formed in the side direction of the male connector 52. Because it was fixed in, it was easy to loosen.

特許文献１に記載の発明は、ロックナット１０２の貫通孔１０２Ｏを押し広げる度合い（程度）を大きな設計にすると締め付けを確実に行うことができる。その反面、あまり大きな設計にし過ぎると、貫通孔１０２Ｏを押し広げるのに大きな力が必要となり、操作性が悪くなる。
他方、貫通孔を押し広げる度合い（程度）をあまり小さな設計にしすぎると、貫通孔１０２Ｏを押し広げるのは容易となるが（小さな力で十分）、締め付ける力が弱くなりすぎる。
さらにいえば、オスコネクタ１０１の拡大部１１５は、第１端部方向から第２端部方向へ下るテーパー１１５Ｔを有するので、拡大部１１５の形態（長さ、テーパ）を、貫通孔を押し広げる度合い（程度）をあまり小さな設計にしすぎると、ロックナット１０２がテーパー１１５Ｔに沿って第２端部方向（オスコネクタとメスコネクタを締め付け状態から緩めるように機能する方向）への移動を阻止することができなくなる。 In the invention described in Patent Document 1, when the degree (degree) of expanding the through hole 102O of the lock nut 102 is designed to be large, tightening can be reliably performed. On the other hand, if the design is too large, a large force is required to expand the through hole 102O, resulting in poor operability.
On the other hand, if the degree (degree) of expanding the through hole is too small, it is easy to expand the through hole 102O (small force is sufficient), but the tightening force becomes too weak.
Furthermore, since the enlarged portion 115 of the male connector 101 has a taper 115T that goes down from the first end portion direction to the second end portion direction, the form (length, taper) of the enlarged portion 115 is expanded to expand the through hole. If the degree (degree) is designed too small, the lock nut 102 is prevented from moving along the taper 115T in the second end direction (a direction that functions to loosen the male connector and the female connector from the tightened state). Can not be.

そこで本発明者は、以上の課題を解決するために鋭意検討を重ねた結果、次の発明に到達した。本発明にしたがえば、以下の接続部材が提供される。
[１]本発明は、オスコネクタ（２）と固定具（１０）とメスコネクタ（１５）とを有し、
前記オスコネクタ（２）、前記固定具（１０）及び前記メスコネクタ（１５）は、長手方向と当該長手方向に略垂直に交差する側部方向とを有し、当該長手方向は第１端部と第２端部とを有し、
前記オスコネクタ（２）は、第１端部側に前方部（２Ｆ）を有し、第２端部側に後方部（２Ｂ）を有し、前記前方部（２Ｆ）と前記後方部（２Ｂ）との間に中間部（２Ｍ）を有し、当該中間部（２Ｍ）の側部方向に係止部（４）を突設し、当該係止部（４）は前記中間部（２Ｍ）に一体に固定して形成し、
前記固定具（１０）は、内壁に段部（１０ＤＳ）を形成し、当該段部（１０ＤＳ）を境界として、当該段部（１０ＤＳ）よりも第１端部側を前方部（１０Ｆ）として形成し、当該段部（１０ＤＳ）よりも第２端部側を後方部（１０Ｂ）として形成し、
前記前方部（１０Ｆ）は、内壁面に螺子（１１）を形成し、
前記後方部（１０Ｂ）の内壁面は、第２端部側から第１端部側に向けて、突部（１１Ｔ）と第１テーパー（ＴＰ１）を形成し、
前記第１テーパー（ＴＰ１）は、前記第２端部側から第１端部側に上るように形成し、
前記後方部（１０Ｂ）は、第１内径（ＩＤ１）と第２内径（ＩＤ２）とを有し、
前記固定具（１０）の後方部（１０Ｂ）の第１内径（ＩＤ１）は、第１テーパー（ＴＰ１）の第１端部側から前記後方部（１０Ｂ）の第１端部側の内径であり、
前記固定具（１０）の後方部（１０Ｂ）の第２内径（ＩＤ２）は、前記突部（１１Ｔ）を形成した区域の内径であり、
前記第１内径（ＩＤ１）と前記第２内径（ＩＤ２）の大きさは、ＩＤ１＞ＩＤ２となるように形成し、
前記メスコネクタ（１５）は、第１端部側に前方部（１５Ｆ）を有し、第２端部側に後方部（１５Ｂ）を有し、
前記後方部（１５Ｂ）は、第２端部側の側部方向に螺子（１８）を形成し、前記螺子（１８）は、前記固定具（１０）の螺子（１１）と螺合する螺子であり、
前記オスコネクタ（２）の係止部（４）の外径（４Ｄ）の大きさを１００とすると、
前記第２内径（ＩＤ２）は、８０以上〜９９以下に形成し、
前記第１内径（ＩＤ１）大きさは、１００以上〜１１０以下に形成し、
前記オスコネクタ（２）の前方部（２Ｆ）を前記メスコネクタ（１５）の後方部（１５Ｂ）に接続し、当該接続部を外周から前記固定具（１０）で締め付けて固定するとき、前記オスコネクタ（２）の係止部（４）は、外径（４Ｄ）を有する部分が第１端部側から第２端部側に亘って、前記固定具（１０）の第１内径（ＩＤ１）から第１テーパ（ＴＰ１）の形成領域内に接近して位置し、
前記オスコネクタ（２）の係止部（４）の第２端部側の角部（ＣＲ）が、前記固定具（１０）の第１テーパー（Ｔ１）に係合され、前記オスコネクタ（２）の係止部（４）の第２端部側と前記固定具（１０）の第１テーパー（ＴＰ１）との摩擦抵抗により、
前記固定具（１０）が締め付けの緩む方向である第２端部側に移動するのを阻止して、前記オスコネクタ（２）と前記メスコネクタ（１５）の接続部の締め付けの緩みを防止することができるようにした接続部材（１）を提供する。
Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following invention. According to the present invention, the following connecting members are provided.
[1] The present invention includes a male connector (2), a fixture (10), and a female connector (15),
The male connector (2), the fixture (10), and the female connector (15) have a longitudinal direction and a side direction that intersects the longitudinal direction substantially perpendicularly, and the longitudinal direction is a first end portion. And a second end,
The male connector (2) has a front part (2F) on the first end side, a rear part (2B) on the second end side, the front part (2F) and the rear part (2B). ) And an intermediate portion (2M) between which the locking portion (4) protrudes in the direction of the side of the intermediate portion (2M). Fixed integrally with the
The fixture (10) forms a step portion (10DS) to the inner wall, forming the stepped portion (10DS) as a boundary, the first end portion than the step portion (10DS) as the front portion (10F) Then, the second end side of the step (10DS ) is formed as the rear part (10B),
The front portion (10F) forms a screw (11) on the inner wall surface,
The inner wall surface of the rear part (10B) forms a protrusion (11T) and a first taper (TP1) from the second end side toward the first end side,
The first taper (TP1) is formed so as to rise from the second end side to the first end side,
The rear part (10B) has a first inner diameter (ID1) and a second inner diameter (ID2),
The first inner diameter (ID1) of the rear part (10B) of the fixture (10) is the inner diameter from the first end side of the first taper (TP1) to the first end part side of the rear part (10B). ,
The second inner diameter (ID2) of the rear part (10B) of the fixture (10) is the inner diameter of the area where the protrusion (11T) is formed,
The size of the first inner diameter (ID1) and the second inner diameter (ID2) is formed to satisfy ID1> ID2.
The female connector (15) has a front part (15F) on the first end side and a rear part (15B) on the second end side,
The rear portion (15B) forms a screw (18) in the side direction on the second end side, and the screw (18) is a screw that is screwed with the screw (11) of the fixture (10). Yes,
When the size of the outer diameter (4D) of the locking portion (4) of the male connector (2) is 100,
The second inner diameter (ID2) is formed in the range of 80 to 99,
The first inner diameter (ID1) has a size of 100 to 110,
When the front part (2F) of the male connector (2) is connected to the rear part (15B) of the female connector (15), and the connection part is tightened and fixed from the outer periphery with the fixture (10), the male connector The locking portion (4) of the connector (2) has a first inner diameter (ID1) of the fixture (10), with a portion having an outer diameter (4D) extending from the first end side to the second end side. Located close to the formation area of the first taper (TP1),
A corner (CR) on the second end side of the locking portion (4) of the male connector (2) is engaged with a first taper (T1) of the fixture (10), and the male connector (2 ) Due to the frictional resistance between the second end side of the locking portion (4) and the first taper (TP1) of the fixture (10),
The fixture (10) is prevented from moving toward the second end, which is the direction in which the tightening is loosened, and the loosening of the connecting portion between the male connector (2) and the female connector (15) is prevented. Provided is a connecting member (1) that can be used.

[２]本発明は、前記オスコネクタ（２）の係止部（４）は側部方向に外径（４Ｄ）を有し、
当該外径（４Ｄ）の大きさと、前記固定具（１０）の後方部（１０Ｂ）の第１内径（ＩＤ１）及び第２内径（ＩＤ２）の大きさの関係は、
（Ａ）第１内径（ＩＤ１）＞外径（４Ｄ）＞第２内径（ＩＤ２）の順に大きく形成するか、または
（Ｂ）前記第１内径（ＩＤ１）と前記係止部（４）の外径（４Ｄ）を同じに形成し、当該第１内径（ＩＤ１）及び前記係止部（４）の外径（４Ｄ）を、前記第２内径（ＩＤ２）よりも大きく形成し、
（第１内径（ＩＤ１）＝外径（４Ｄ））＞第２内径（ＩＤ２）となるように形成した[１]に記載の接続部材（１）を提供する。
[３]本発明は、前記固定具（１０）の第１テーパー（ＴＰ１）の勾配（θ１）を、１５度〜７５度に形成した[１]または[２]に記載の接続部材（１）を提供する。
[４]本発明は、前記オスコネクタ（２）を硬質部材で形成し、前記固定具（１０）を半硬質部材で形成するか、または
前記オスコネクタ（２）を半硬質部材で形成し、前記固定具（１０）を硬質部材で形成した[１]から[３]のいずれか１に記載の接続部材（１）を提供する。
[５] 本発明は、[１]から[４]のいずれか１に記載の接続部材（１）を有する医療用具を提供する。
[ 2 ] In the present invention, the locking portion (4) of the male connector (2) has an outer diameter (4D) in the side portion direction,
The relationship between the size of the outer diameter (4D) and the size of the first inner diameter (ID1) and the second inner diameter (ID2) of the rear part (10B) of the fixture (10) is as follows:
(A) The first inner diameter (ID1)> the outer diameter (4D)> the second inner diameter (ID2) is formed in this order, or (B) the first inner diameter (ID1) and the outer portion of the locking portion (4). Forming the same diameter (4D), and forming the first inner diameter (ID1) and the outer diameter (4D) of the locking portion (4) larger than the second inner diameter (ID2);
The connection member (1) according to [1] is formed so that (first inner diameter (ID1) = outer diameter (4D))> second inner diameter (ID2).
[ 3 ] The connecting member (1) according to [1] or [ 2 ], in which the slope (θ1) of the first taper (TP1) of the fixture (10) is formed at 15 to 75 degrees. I will provide a.
[ 4 ] In the present invention, the male connector (2) is formed of a rigid member, and the fixture (10) is formed of a semi-rigid member, or the male connector (2) is formed of a semi-rigid member, The connection member (1) according to any one of [1] to [ 3 ], wherein the fixture (10) is formed of a hard member.
[ 5 ] The present invention provides a medical device having the connection member (1) according to any one of [1] to [ 4 ].

本発明の接続部材は、特許文献１に記載の発明と比較して、以下の効果を有する。
〈１〉固定具１０は、軽い力で回転させるのみで、オスコネクタ２の長手方向に沿って第１端部方向へ移動し、オスコネクタ２とメスコネクタ１５を外周から強い力で締め付けることができる。
〈２〉さらにオスコネクタ２の係止部４の第２端部側の角部ＣＲは、固定具１０の第１テーパーＴＰ１と係合し、これらの摩擦抵抗により、固定具が第２端部方向（オスコネクタとメスコネクタとを締め付けを緩める方向）へ移動するのを確実に阻止することができる。
The connecting member of the present invention has the following effects compared to the invention described in Patent Document 1.
<1> The fixing tool 10 can be moved by a light force in the first end direction along the longitudinal direction of the male connector 2, and the male connector 2 and the female connector 15 can be tightened from the outer periphery with a strong force. it can.
<2> further corner portion CR of the second end side of the engaging portion 4 of the male connector 2 is engaged with the first tapered TP1 fixture 10, these frictional resistances, fastener second end It is possible to reliably prevent movement in the direction (direction in which the male connector and the female connector are loosened).

図１は本発明の接続部材に使用される固定具の概略図である。（Ａ）は正面図、（Ｂ）は右側面図、（Ｃ）は左側面図、（Ｄ）は（Ａ）のＡ−Ａ断面図、（Ｅ）はＣの一部拡大図、（Ｆ）はＤの一部拡大図である。FIG. 1 is a schematic view of a fixture used in the connection member of the present invention. (A) is a front view, (B) is a right side view, (C) is a left side view, (D) is an AA cross-sectional view of (A), (E) is a partially enlarged view of C, (F) ) Is a partially enlarged view of D. 図２は図１の固定具の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of the fixture of FIG. 図３は図２の第２端部側の一部拡大図である。FIG. 3 is a partially enlarged view of the second end side of FIG. 図４は本発明の接続部材のオスコネクタとメスコネクタの接続前を示す概略図である。（Ａ）は正面図、（Ｂ）は（Ａ）の縦断面［（Ｅ）のＡ−Ａ断面図］、（Ｃ）は斜見図、（Ｄ）は（Ｃ）を１８０°背面から見た斜見図、（Ｅ）は（Ａ）の右側面図である。［以下、図５〜図６、図８〜図１０の（Ａ）〜（Ｅ）も図４と同じである］FIG. 4 is a schematic view showing the connection member of the present invention before the male connector and the female connector are connected. (A) is a front view, (B) is a longitudinal section of (A) [A-A sectional view of (E)], (C) is a perspective view, and (D) is a view of (C) from the back of 180 °. swash seen view, a right side view of (E) is (a). [Hereinafter, FIGS. 5A to 6 and FIGS. 8A to 10E are also the same as FIG. 4.] 図５は本発明の接続部材のオスコネクタとメスコネクタの接続開始を示す概略図である。（Ｂ）は（Ａ）の縦断面［（Ｅ）のＢ−Ｂ断面図］である。FIG. 5 is a schematic view showing the start of connection between the male connector and the female connector of the connection member of the present invention. (B) is the longitudinal cross-section [BB sectional drawing of (E)] of (A). 図６は本発明の接続部材のオスコネクタとメスコネクタの接続途中を示す概略図である。FIG. 6 is a schematic view showing the connection between the male connector and the female connector of the connection member of the present invention. 図７は本発明の接続部材の使用状態（オスコネクタとメスコネクタを接続し、固定具で締め付けているところ）の拡大図である。（Ａ）は拡大図、（Ｂ）は（Ａ）の一部拡大図である。FIG. 7 is an enlarged view of the connecting member of the present invention in use (where a male connector and a female connector are connected and tightened with a fixture). (A) is an enlarged view, (B) is a partially enlarged view of (A). 図８は本発明の接続部材のオスコネクタとメスコネクタの接続し、固定具で締め付けた状態を示す概略図である。FIG. 8 is a schematic view showing a state in which the male connector and the female connector of the connection member of the present invention are connected and tightened with a fixture. 図９は本発明の接続部材のオスコネクタとメスコネクタの取り外しを開始したところの概略図である。FIG. 9 is a schematic view of the start of removal of the male connector and the female connector of the connection member of the present invention. 図１０は本発明の接続部材のオスコネクタとメスコネクタの取り外した状態の概略図である。FIG. 10 is a schematic view of the connection member of the present invention with the male connector and the female connector removed. 図１１は、固定具の参考例を示す拡大断面図である。FIG. 11 is an enlarged cross-sectional view showing a reference example of the fixture. 図１２は、図１１の固定具を使用した参考例の接続部材の使用状態（オスコネクタとメスコネクタを接続し、固定具で締め付けているところ）の拡大図である。FIG. 12 is an enlarged view of the state of use of the connection member of the reference example using the fixture of FIG. 11 (where the male connector and the female connector are connected and tightened with the fixture). 図１３は、図１１の固定具を使用した参考例の接続部材の使用状態（オスコネクタとメスコネクタを接続し、固定具で締め付けているところ）の拡大図である。FIG. 13 is an enlarged view of a state of use of the connection member of the reference example using the fixture of FIG. 11 (where a male connector and a female connector are connected and tightened with the fixture). 図１４は、公知の接続部材その使用状態図である。（Ａ）はオスコネクタとメスコネクタの接続前、（Ｂ）は接続開始、（Ｃ）は固定具で締め付ける状態、（Ｄ）は固定具の締め付けを緩める状態を示す概略図である。FIG. 14 is a diagram showing the state of use of a known connecting member. (A) is before connection of a male connector and a female connector, (B) is a connection start, (C) is the state tightened with a fixing tool, (D) is the schematic which shows the state which loosens tightening of a fixing tool. 図１５は、特許文献１に記載の接続部材の概略図である。FIG. 15 is a schematic view of a connection member described in Patent Document 1.

以下、図面を参照しながら本発明を詳細に説明する。
本発明の接続部材１は、オスコネクタ２と固定具１０とメスコネクタ１５とを有する。
図１〜図１０に例示するように、本発明の接続部材１を構成するオスコネクタ２、固定具１０、及びメスコネクタ１５は管状の部材である。管状とは、チューブ状または筒状という場合もある。
これらの管状の部材、当該管状の部材の形態を一部でも含むオスコネクタ２、固定具１０、及びメスコネクタ１５の各構成部品は、長手方向と当該長手方向に略垂直に交差する側部方向とを有する。側部方向は、または外周方向、径方向、半径方向という場合もある。 Hereinafter, the present invention will be described in detail with reference to the drawings.
The connecting member 1 of the present invention includes a male connector 2, a fixture 10, and a female connector 15.
As illustrated in FIGS. 1 to 10, the male connector 2, the fixture 10, and the female connector 15 that constitute the connection member 1 of the present invention are tubular members. The tubular shape may be a tube shape or a cylinder shape.
These tubular members, the male connector 2, the fixture 10, and the female connector 15 including at least part of the shape of the tubular member are in the lateral direction that intersects the longitudinal direction substantially perpendicularly to the longitudinal direction. And have. The side direction may be referred to as an outer circumferential direction, a radial direction, or a radial direction.

オスコネクタ２、固定具１０、及びメスコネクタ１５の各構成部品は、それぞれ長手方向に第１端部と第２端部とを有する。
以下、本発明の説明で、オスコネクタ２の第１端部とは、メスコネクタ１５と接続する際に、メスコネクタ１５に近い端部のことを意味する。オスコネクタ２の第２端部とは、メスコネクタ１５から遠い端部のことを意味する。
メスコネクタ１５の第１端部とは、オスコネクタ２と接続する際に、オスコネクタ２から遠い端部を意味する。メスコネクタ１５の第２端部とは、オスコネクタ２に近い端部を意味する。
固定具１０の第１端部とは、メスコネクタ１５に近い端部を意味する。固定具１０の第２端部とは、メスコネクタ１５から遠い端部を意味する。 Each component of the male connector 2, the fixture 10, and the female connector 15 has a first end and a second end in the longitudinal direction.
Hereinafter, in the description of the present invention, the first end portion of the male connector 2 means an end portion close to the female connector 15 when connected to the female connector 15. The second end of the male connector 2 means an end far from the female connector 15.
The first end of the female connector 15 means an end far from the male connector 2 when connected to the male connector 2. The second end portion of the female connector 15 means an end portion close to the male connector 2.
The first end portion of the fixture 10 means an end portion close to the female connector 15. The second end of the fixture 10 means an end far from the female connector 15.

［オスコネクタ］
オスコネクタ２は、図４（Ａ）、（Ｂ）に例示するように、第１端部側の前方部２Ｆと第２端部側の後方部２Ｂとからなり、前方部２Ｆと後方部２Ｂとの間の中間部２Ｍの側部方向に、係止部４を突設している。換言すれば係止部４は中間部２Ｍに一体に固定して形成している。
前方部２Ｆの内外壁は、図４（Ａ）、（Ｂ）に例示するように第２端部側から第１端部側に下るテーパー（図中、符号の記載は略）を形成している。
第１端部側のテーパー（図中、符号の記載は略）は、勾配をわずかに大きくしている。 [Male connector]
As illustrated in FIGS. 4A and 4B, the male connector 2 includes a front part 2F on the first end side and a rear part 2B on the second end side, and the front part 2F and the rear part 2B. A locking portion 4 is provided so as to project in the direction of the side of the intermediate portion 2M. In other words, the locking portion 4 is formed integrally with the intermediate portion 2M.
The inner and outer walls of the front portion 2F form a taper (indicated by reference numerals in the drawings) that falls from the second end side to the first end side as illustrated in FIGS. 4 (A) and 4 (B). Yes.
The taper on the first end side (the reference numerals are omitted in the figure) slightly increases the gradient.

係止部４は、（後述するように）前方部２Ｆをメスコネクタ１５の後方部１５Ｂに挿入して接続した後、これらの接続部をさらに側部方向から固定具１０で締め付けて固定する時に、（後述する固定具１０の第１テーパーＴＰ１とともに）固定具１０が第２端部側に移動して、締め付けが緩むのを防ぐストッパーとしての役割を果たす。
係止部４は、中間部２Ｍの側部方向の全域に、フランジ状（または鍔部という場合もある）に形成するのがよいが、側部方向の一部に、不連続状に形成してもよい。
要するに、係止部４は側部方向の第２端部側の角部ＣＲが、固定具１０の第１テーパーＴＰ１に係合できる形態に形成されておればよい。
係止部４は、図３に一部点線（破線）で例示するように、側部方向に延びる外径４Ｄを有する。詳細は後述する。 The locking part 4 is used when the front part 2F is inserted into and connected to the rear part 15B of the female connector 15 (as will be described later), and then these connecting parts are further tightened and fixed with the fixture 10 from the side direction. , (With a first taper TP1 of the fixture 10 to be described later) serves as a stopper that prevents the fixture 10 from moving toward the second end and loosening.
The locking portion 4 is preferably formed in a flange shape (or may be referred to as a flange portion) over the entire region in the side portion direction of the intermediate portion 2M, but is formed discontinuously in a portion in the side portion direction. May be.
In short, the engaging portion 4 only needs to be formed in a form in which the corner portion CR on the second end side in the side portion direction can be engaged with the first taper TP1 of the fixture 10.
The locking part 4 has an outer diameter 4D extending in the side part direction as illustrated in part by a dotted line (broken line) in FIG. Details will be described later.

［固定具１０］
固定具１０は、図１、図２に例示するように第１端部側の前方部１０Ｆと第２端部側の後方部１０Ｂとからなる。
前方部１０Ｆは、外径（側部方向の長さ）を（後方部１０Ｂと比較して）大径に形成している。前方部１０Ｆは、図１、図２に例示するように第１端部側（前方）から略中間部に至る部分を含む。
前方部１０Ｆは、内壁面に螺子１１を形成している。螺子１１は、（後述する）メスコネクタ１５の螺子１８と螺合される。
後方部１０Ｂは、外径の大部分を（前方部１０Ｆと比較して）小径に形成している。
後方部１０Ｂの第１端部側の内壁と、前方部１０Ｆの第２端部側の内部との間に、段部１０ＤＳを形成している。
以下後方部１０Ｂの第１端部側の内壁を段部１０ＤＳ（図２参照）として記載する。 [Fixing tool 10]
As illustrated in FIGS. 1 and 2, the fixture 10 includes a front portion 10F on the first end side and a rear portion 10B on the second end side.
The front part 10F has a large outer diameter (length in the side part direction) (compared to the rear part 10B). As illustrated in FIGS. 1 and 2, the front portion 10 F includes a portion from the first end side (front) to the substantially intermediate portion.
The front portion 10F forms a screw 11 on the inner wall surface. The screw 11 is screwed with a screw 18 of a female connector 15 (described later).
The rear part 10B has a small outer diameter (compared to the front part 10F).
A step portion 10DS is formed between the inner wall on the first end side of the rear portion 10B and the inside on the second end side of the front portion 10F.
Hereinafter, the inner wall on the first end side of the rear portion 10B is described as a step portion 10DS (see FIG. 2).

後方部１０Ｂは、第２端部側に開口部Ｏ（図２参照）を形成している。
後方部１０Ｂの内壁面は、第２端部側の開口部Ｏから第１端部側に向けて、第２テーパーＴＰ２、突部１１Ｔ、第１テーパーＴＰ１を形成している。
第２テーパーＴＰ２は、図２に示すように第２端部側から第１端部側に下るように形成している。
第１テーパーＴＰ１は、図２に示すように第２端部側から第１端部側に上るように形成している。
図２、図３の例示では、第２テーパーＴＰ２の勾配（θ２）は、第1テーパーＴＰ１の勾配（θ１）より大きく形成しているが、第１テーパーＴＰ１の勾配（θ１）は、第２テーパーＴＰ２の勾配（θ２）より大きく形成してもよい。また第１テーパーＴＰ１の勾配（θ１）と、第２テーパーＴＰ２の勾配（θ２）は、実質的に同じに形成してもよい。 The rear portion 10B has an opening O (see FIG. 2) on the second end side.
The inner wall surface of the rear portion 10B forms a second taper TP2, a protrusion 11T, and a first taper TP1 from the opening O on the second end side toward the first end side.
As shown in FIG. 2, the second taper TP2 is formed so as to descend from the second end side to the first end side.
As shown in FIG. 2, the first taper TP1 is formed so as to rise from the second end side to the first end side.
2 and 3, the gradient (θ2) of the second taper TP2 is formed larger than the gradient (θ1) of the first taper TP1, but the gradient (θ1) of the first taper TP1 is the second gradient. You may form larger than the gradient ((theta) 2) of taper TP2. Further, the gradient (θ1) of the first taper TP1 and the gradient (θ2) of the second taper TP2 may be formed substantially the same.

後方部１０Ｂは、第１内径ＩＤ１と第２内径ＩＤ２とを有する。
第１内径ＩＤ１は、第１テーパーＴＰ１の第２端部から後方部１０Ｂの第１端部側の内径である。さらにいえば、第１テーパーＴＰ１の第１端部から、段部１０ＤＳに至るまでの内径である。
前記第２内径ＩＤ２は、前記突部１１Ｔを形成した区域の内径である。
さらにいえば、第２内径ＩＤ２は、第１テーパーＴＰ１と第２テーパーＴＰ２との間の内径である。
第１内径ＩＤ１と第２内径ＩＤ２の大きさは、ＩＤ１＞ＩＤ２となるように形成している。
第２テーパーＴＰ２、突部１１Ｔ、第１テーパーＴＰ１のそれぞれの長手方向の長さをそれぞれ、ＬＴＰ２、Ｌ１１Ｔ、ＬＴＰ１とすると、これらの長さの関係は、図２、図３の例示では、ＬＴＰ２＞Ｌ１１Ｔ＞ＬＴＰ１の順に長くなるように形成しているが、固定具１０（ロックナット）の緩みを防止できるのであれば、これらの長さの関係は、どのようにでも調節することができる。 The rear portion 10B has a first inner diameter ID1 and a second inner diameter ID2.
The first inner diameter ID1 is an inner diameter on the first end portion side of the rear portion 10B from the second end portion of the first taper TP1. More specifically, the inner diameter from the first end of the first taper TP1 to the stepped portion 10DS.
The second inner diameter ID2 is an inner diameter of an area where the protrusion 11T is formed.
More specifically, the second inner diameter ID2 is an inner diameter between the first taper TP1 and the second taper TP2.
The first inner diameter ID1 and the second inner diameter ID2 are formed such that ID1> ID2.
When the lengths of the second taper TP2, the protrusion 11T, and the first taper TP1 in the longitudinal direction are LTP2, L11T, and LTP1, respectively, the relationship between these lengths is LTP2 in the illustrations of FIGS. >L11T> LTP1 is formed so as to become longer in order, but the relationship between these lengths can be adjusted in any way as long as loosening of the fixture 10 (lock nut) can be prevented.

［後方部１０Ｂの「第１内径ＩＤ１」、「第２内径ＩＤ２」と係止部４の「外径４Ｄ」との関係］
図２〜図４に例示するように、係止部４の外径４Ｄは、固定具１０の後方部１０Ｂの第１内径ＩＤ１よりも小さく形成している。
係止部４の外径４Ｄは、後方部１０Ｂの第２内径ＩＤ２よりも、大きく形成している。
外径４Ｄ、第１内径ＩＤ１及び第２内径ＩＤ２の大きさの関係は、（Ａ）第１内径ＩＤ１＞外径４Ｄ＞第２内径ＩＤ２の順に大きく形成している。
または外径４Ｄと、第１内径ＩＤ１を同じに大きさに形成し、外径４Ｄと第１内径ＩＤ１とを、第２内径ＩＤ２よりも大きく形成するようにしてもよい。
すなわち（Ｂ）（第１内径ＩＤ１＝外径４Ｄ）＞第２内径ＩＤ２。
係止部４の外径４Ｄは、少なくとも第２端部側の外径４Ｄが、前記（Ａ）、（Ｂ）の条件を充足すればよい。 [Relationship between “first inner diameter ID1” and “second inner diameter ID2” of rear portion 10B and “outer diameter 4D” of locking portion 4]
As illustrated in FIGS. 2 to 4, the outer diameter 4 D of the locking portion 4 is formed to be smaller than the first inner diameter ID 1 of the rear portion 10 B of the fixture 10.
The outer diameter 4D of the locking part 4 is formed larger than the second inner diameter ID2 of the rear part 10B.
The relationship among the sizes of the outer diameter 4D, the first inner diameter ID1, and the second inner diameter ID2 is formed in the order of (A) first inner diameter ID1> outer diameter 4D> second inner diameter ID2.
Alternatively, the outer diameter 4D and the first inner diameter ID1 may be formed in the same size, and the outer diameter 4D and the first inner diameter ID1 may be formed larger than the second inner diameter ID2.
That is, (B) (first inner diameter ID1 = outer diameter 4D)> second inner diameter ID2.
As for the outer diameter 4D of the locking portion 4, it is sufficient that at least the outer diameter 4D on the second end side satisfies the conditions (A) and (B).

係止部４の外径４Ｄの大きさ（径）を１００とすると、ＩＤ２は、８０以上〜９９以下、例えば、８０、８５、９０、９１〜９９、９５〜９９、９６〜９９、９７〜９９、９８〜９９に形成する。
ＩＤ２の大きさ（径）があまり大きくする（９９を超える）と、第１テーパーＴＰ１を形成しづらくなる。すなわち、第１テーパーＴＰ１の勾配（θ１）が小さくなりすぎて、オスコネクタ２の係止部４の第２端部側と接触したときに、摩擦抵抗が生じにくくなる。換言すれば、係合感ないし嵌合感がなくなる。このため固定具１０が第２端部側に移動しやすくなり、ひいては、オスコネクタ２とメスコネクタ１５の接続部の締め付けが緩みやすくなるので好ましくない。
逆にＩＤ２の大きさ（径）があまり小さくする（８０未満）と、（オスコネクタ２の第２端部側に接続した）第２チューブＴＢ２の外周に、接触ないし引っ掛かりやすくなり、ひいては固定具１０が、第１端部側に移動しにくくなるので好ましくない。
If the size (diameter) of the outer diameter 4D of the locking part 4 is 100, ID2 is 80 or more and 99 or less, for example, 80, 85, 90, 91 to 99, 95 to 99, 96 to 99, 97 to 99, 98-99.
If the size (diameter) of ID2 is too large (exceeds 99), it is difficult to form the first taper TP1. That is, when the gradient (θ1) of the first taper TP1 becomes too small and comes into contact with the second end side of the locking portion 4 of the male connector 2, friction resistance is unlikely to occur. In other words, there is no feeling of engagement or fitting. For this reason, it becomes easy for the fixture 10 to move to the second end side, and as a result, tightening of the connecting portion between the male connector 2 and the female connector 15 becomes easy to loosen, which is not preferable.
On the other hand, if the size (diameter) of ID2 is too small (less than 80), the outer periphery of the second tube TB2 (connected to the second end side of the male connector 2) can be easily contacted or caught, and as a result, the fixture. 10 is not preferable because it becomes difficult to move to the first end side.

係止部４の外径４Ｄの大きさ（径）を１００とすると、ＩＤ１の大きさは、１００（以上）〜１１０（以下）、好ましくは１００〜１０５、より好ましくは、１０１〜１０３に形成する。
ＩＤ１の大きさをあまり小さく（１００未満）すると、オスコネクタ２の係止部４に接触ないし引っ掛かりやすくなり、ひいては固定具１０が、第１端部側に移動しにくくなるので好ましくない。
ＩＤ１の大きさをあまり大きく（１１０を超える）すると、（ａ）第１テーパーＴＰ１の勾配（θ１）が大きくなりすぎ、オスコネクタ２の係止部４の第２端部側と接触したときに、摩擦抵抗が生じにくくなる。換言すれば、係合感ないし嵌合感がなくなる。
このため固定部１０が第２端部側に移動しやすくなり、ひいては、オスコネクタ２とメスコネクタ１５の接続部の締め付けが緩みやすくなるので好ましくない。また（ｂ）係止部４との間の隙間が大きくなり、第１端部側に移動する際に、ガタついて、斜めに傾き、直進しずらくなるので好ましくない。
When the size (diameter) of the outer diameter 4D of the locking portion 4 is 100, the size of ID1 is 100 (more) to 110 (less), preferably 100 to 105, more preferably 101 to 103. To do.
If the size of ID1 is too small (less than 100), it is not preferable because it is easy to come into contact with or catch on the locking portion 4 of the male connector 2, and the fixing tool 10 is difficult to move to the first end side.
If the size of ID1 is too large (exceeding 110), (a) the slope (θ1) of the first taper TP1 becomes too large and comes into contact with the second end side of the locking portion 4 of the male connector 2 , Friction resistance is less likely to occur. In other words, there is no feeling of engagement or fitting.
For this reason, it becomes easy for the fixing | fixed part 10 to move to the 2nd edge part side, and since it becomes easy to loosen | tighten the connection part of the male connector 2 and the female connector 15, it is not preferable. Further, (b) a gap between the engaging portion 4 and the first end portion side becomes large, and it is not preferable because it rattles, tilts, and does not move straight forward.

以上のように第１テーパーＴＰ１の勾配（θ１）は、あまり小さくしすぎても、また
あまり大きくしすぎても好ましくない。
第１テーパーＴＰ１の勾配（θ１）は、１５度〜７５度、好ましくは２０度〜７０度、より好ましくは２５度〜６５度、さらに好ましくは３０度〜６０度、３５度〜５５度、４５〜５０度の間に形成するのがよい。 As described above, it is not preferable that the gradient (θ1) of the first taper TP1 is too small or too large.
The gradient (θ1) of the first taper TP1 is 15 ° to 75 °, preferably 20 ° to 70 °, more preferably 25 ° to 65 °, still more preferably 30 ° to 60 °, 35 ° to 55 °, 45 °. It is good to form between -50 degrees.

［後述する図８のように］固定具１０で、オスコネクタ２とメスコネクタ１５の接続部を外周から締め付けているときでも、オスコネクタ２の係止部４の第２端部側と固定具１０の第１テーパーＴＰ１との接触部（係合部）との摩擦抵抗により、固定具１０が第２端部側に移動して、オスコネクタ２とメスコネクタ１５の接続部の締め付けを緩むことがない。
[As in FIG. 8 to be described later] Even when the connecting portion of the male connector 2 and the female connector 15 is tightened from the outer periphery with the fixture 10, the second end side of the locking portion 4 of the male connector 2 and the fixture The fastener 10 moves to the second end side due to the frictional resistance with the contact portion (engagement portion) with the first taper TP1 of 10 and loosens the tightening of the connection portion between the male connector 2 and the female connector 15. There is no.

固定具１０は、オスコネクタ２とメスコネクタ１５の接続部を外側から覆って固定できるものであれば何でも採用することができる。
例えばいわゆるルアーロック（またはロックナットともいう）等を使用することができる。 Any fixing device 10 can be used as long as it can cover and fix the connection portion of the male connector 2 and the female connector 15 from the outside.
For example, a so-called luer lock (also referred to as a lock nut) or the like can be used.

［メスコネクタ１５］
メスコネクタ１５は、図４（Ｂ）に例示するように、第１端部側の前方部１５Ｆと第２端部側の後方部１５Ｂとからなる。
前方部１５Ｆは、側部方向に翼状の突起部１９を形成し、内壁にチューブ接続部１６（溝ないし凹部ともいう）を形成している。
後方部１５Ｂは、第２端部側の側部方向に螺子１８を形成している。
後方部１５Ｂの内周壁は、第２端部側から第１端部側に下るテーパー（図中の符号略）を形成して、オスコネクタ２の前方部２Ｆ（テーパーを有する、図中の符号略）が挿入できるように形成している。
螺子１８は、固定具１０の螺子１１と螺合される。 [Female connector 15]
As illustrated in FIG. 4B, the female connector 15 includes a front portion 15F on the first end side and a rear portion 15B on the second end side.
The front portion 15F forms a wing-like projection 19 in the side direction, and forms a tube connection portion 16 (also referred to as a groove or a recess) on the inner wall.
The rear portion 15B forms a screw 18 in the side portion direction on the second end side.
The inner peripheral wall of the rear portion 15B forms a taper (not shown in the figure) that goes down from the second end side to the first end side, and the front part 2F of the male connector 2 (having a taper) Abbreviation) can be inserted.
The screw 18 is screwed with the screw 11 of the fixture 10.

なお本発明では、螺子１１、１８は、図１〜図１０では、「右螺子」を現わしている。
「右螺子」とは、当該右螺子を形成した部品を右方向（時計と同じ方向）に回転させると前進し、左方向（時計と反対方向）に回転させると後退する螺子を意味する。
なお「左螺子」とは、当該左螺子を形成した部品を左方向（時計と反対方向）に回転させると前進し、右方向（時計と同じ方向）に回転させると後退する螺子を意味する。 In the present invention, the screws 11 and 18 represent “right screws” in FIGS. 1 to 10.
The “right screw” means a screw that moves forward when the component forming the right screw is rotated in the right direction (the same direction as the clock) and moves backward when rotated in the left direction (the direction opposite to the clock).
The “left screw” means a screw that moves forward when the part forming the left screw is rotated in the left direction (the direction opposite to the clockwise direction) and moves backward when rotated in the right direction (the same direction as the clockwise direction).

本願発明の接続部材１の使用方法の一例について、図３〜図１０を参照しながら説明する。
（１）図４の例示では、第１端部側から第２端部側に向けて、メスコネクタ１５、オスコネクタ２、固定具１０の順に配置している。
メスコネクタ１５の第１端部側には、第１チューブＴＢ１を接続し、オスコネクタ２の第２端部側には、第２チューブＴＢ２をそれぞれ接続している。
（２）図５に例示するように、第２チューブＴＢ２の外周に、第２端部側から固定具１０を装着する。
オスコネクタ２の前方部２Ｆの第１端部側を、メスコネクタ１５の後方部１５Ｂの第２端部側から挿入し、メスコネクタ１５の前方部１５Ｆ側へ押し進める。 An example of a method of using the connection member 1 of the present invention will be described with reference to FIGS.
(1) In the illustration of FIG. 4, it arrange | positions in order of the female connector 15, the male connector 2, and the fixing tool 10 toward the 2nd end part side from the 1st end part side.
The first tube TB1 is connected to the first end side of the female connector 15, and the second tube TB2 is connected to the second end side of the male connector 2, respectively.
(2) As illustrated in FIG. 5, the fixture 10 is attached to the outer periphery of the second tube TB2 from the second end side.
The first end side of the front part 2F of the male connector 2 is inserted from the second end side of the rear part 15B of the female connector 15 and pushed forward to the front part 15F side of the female connector 15.

（３）図５〜図６に例示するように固定具１０を右回転させて、固定具１０の前方部１０Ｆの第１端部側が、オスコネクタ２の係止部４を乗り超えて、メスコネクタ１５の第２端部側の壁に接触ないし近づく。
（４）さらにオスコネクタ２の前方部２Ｆの第１端部側を、メスコネクタ１５の後方部１５Ｂの第２端部側へ深く挿入し、固定具１０を右回転させる。
螺子１１がオスコネクタ２の係止部４に沿って、右回転することにより、固定具１０が第１端部方向へ移動する。
図７（Ａ）に例示するように固定具１０の第１端部側の螺子１１がメスコネクタ１５の第二端部側の螺子１８に引っかかった後、固定具１０をさらに右回転させると、固定具１０の螺子１１とメスコネクタ１５の螺子１８同士の相互の螺子作用により、固定具１０はメスコネクタ１５方向に移動して、図８に示すようにオスコネクタ２とメスコネクタ１５の接続部を外周から覆う。 (3) As illustrated in FIGS. 5 to 6, the fixture 10 is rotated to the right, and the first end side of the front portion 10 F of the fixture 10 gets over the locking portion 4 of the male connector 2, and the female It contacts or approaches the wall on the second end side of the connector 15.
(4) Further, the first end side of the front portion 2F of the male connector 2 is inserted deeply into the second end side of the rear portion 15B of the female connector 15, and the fixture 10 is rotated to the right.
When the screw 11 rotates clockwise along the locking portion 4 of the male connector 2, the fixture 10 moves toward the first end portion.
As illustrated in FIG. 7A, after the screw 11 on the first end side of the fixture 10 is caught by the screw 18 on the second end side of the female connector 15, the fixture 10 is further rotated clockwise. Due to the mutual screw action between the screw 11 of the fixing tool 10 and the screw 18 of the female connector 15, the fixing tool 10 moves in the direction of the female connector 15, and the connecting portion between the male connector 2 and the female connector 15 as shown in FIG. Is covered from the outer periphery.

図８（Ｂ）に示すように、オスコネクタ２の係止部４の第２端部側が、第１テーパーＴ１に接触して、係合される。
図８（Ｂ）のように、固定具１０の前方部１０Ｆの内壁で、オスコネクタ２とメスコネクタ１５の接続部を側部方向から締め付けることができる。
係止部４の第２端部側が、第１テーパーＴ１に係合され、これらのオスコネクタ２の係止部４の第２端部側と固定具１０の第１テーパーＴＰ１と接触部の摩擦抵抗により、固定具１０が緩む方向（第２端部側）に移動して、オスコネクタ２とメスコネクタ１５の接続部の締め付けを緩むことがない。
As shown in FIG. 8B, the second end side of the locking portion 4 of the male connector 2 is brought into contact with and engaged with the first taper T1.
As shown in FIG. 8B, the connecting portion between the male connector 2 and the female connector 15 can be tightened from the side direction on the inner wall of the front portion 10 F of the fixture 10.
The second end side of the locking portion 4 is engaged with the first taper T1, and the friction between the second end side of the locking portion 4 of the male connector 2, the first taper TP1 of the fixture 10, and the contact portion. The resistor 10 does not move in the direction in which the fixture 10 is loosened (second end side), and the tightening of the connection portion between the male connector 2 and the female connector 15 is not loosened.

（５）オスコネクタ２をメスコネクタ１５から取り外す場合は、図９に例示するように、固定具１０を左回転すると、固定具１０の螺子１１とメスコネクタ１５の螺子１８同士の相互の螺子作用により、固定具１０が第２端部側へ移動し、オスコネクタ２の係止部４の第２端部側と固定具１０の第１テーパーＴＰ１との係合がはずれる。
（６）図１０に例示するように、固定具１０をオスコネクタ２に装着した状態で、第２端部側へ移動させて、オスコネクタ２とメスコネクタ１５との接続を解除する。 (5) When removing the male connector 2 from the female connector 15, as illustrated in FIG. 9, when the fixing tool 10 is rotated counterclockwise, the mutual screw action between the screw 11 of the fixing tool 10 and the screw 18 of the female connector 15. As a result, the fixture 10 moves to the second end side, and the engagement between the second end side of the locking portion 4 of the male connector 2 and the first taper TP1 of the fixture 10 is released.
(6) As illustrated in FIG. 10, in a state where the fixture 10 is mounted on the male connector 2, it is moved to the second end side to release the connection between the male connector 2 and the female connector 15.

また本発明の接続部材１において、前記固定具１０に代えて、参考例として図１１の固定具１０´を採用することができる。
固定具１０´は、突部１１Ｔ´の第１端部側に、段部１１ＤＳを形成したものである。
さらにいえば、第１テーパーＴＰ１の第２端部側にストレート部１１Ｓ（長手方向に沿ってストレートに形成された部分）を形成し、当該ストレート部１１Ｓの第２端部側に段部１１ＤＳを形成している。
固定具１０´は、突部１１Ｔ´の第１端部側が段部１１ＤＳになっている。
第１テーパーＴＰ１は、オスコネクタ２のいわゆる「さそい」として機能する。
ストレート部１１Ｓは、オスコネクタ２のいわゆる「緩み防止」として機能する。
段部１１ＤＳは、オスコネクタ２のいわゆる「ストッパー」として機能する。
以下、図１１の固定具１０´について説明する。
〈１〉図１２に示すように、オスコネクタ２の係止部４の第２端部４．２Ｔ側が、第１テーパーＴＰ１に接触する。
〈２〉前記係止部４の第２端部４．２Ｔは、第１テーパーＴＰ１に沿って下るように、第２端部方向に移動する。
〈３〉図１３に示すように、前記係止部４の第２端部４．２Ｔは、ストレート部１１Ｓを経て、段部１１ＤＳと接触する。
Moreover, in the connection member 1 of this invention, it can replace with the said fixture 10 and can employ | adopt fixture 10 ' of FIG. 11 as a reference example .
The fixture 10 'is formed with a step portion 11DS on the first end side of the protrusion 11T'.
More specifically, a straight portion 11S (a portion formed straight along the longitudinal direction) is formed on the second end portion side of the first taper TP1, and a step portion 11DS is formed on the second end portion side of the straight portion 11S. Forming.
As for fixing tool 10 ', the 1st end part side of protrusion 11T' has step part 11DS.
The first taper TP1 functions as a so-called “scorpion” of the male connector 2.
The straight portion 11 S functions as so-called “loosening prevention” of the male connector 2.
The step portion 11DS functions as a so-called “stopper” of the male connector 2.
Hereinafter, the fixture 10 ′ of FIG. 11 will be described.
<1> As shown in FIG. 12, the second end portion 4.2T side of the locking portion 4 of the male connector 2 is in contact with the first taper TP1.
<2> The second end portion 4.2T of the locking portion 4 moves in the second end portion direction so as to fall along the first taper TP1.
<3> As shown in FIG. 13, the second end portion 4.2T of the locking portion 4 is in contact with the step portion 11DS through the straight portion 11S.

前記係止部４の第２端部４．２Ｔ側は、外側（外周）から固定具１０´のストレート部１１Ｓより外圧を受け、段部１１ＤＳに接触して固定される。
これによりオスコネクタ２の係止部４の第２端部４．２Ｔ側は、ストレート部１１Ｓとの摩擦抵抗と、段部１１ＤＳ（ストッパー）との接触により、固定部１０´が緩む方向（第２端部側）に移動して、オスコネクタ２とメスコネクタ１５の接続部の締め付けを緩むことがない。 The second end portion 4.2T side of the locking portion 4 receives external pressure from the straight portion 11S of the fixture 10 'from the outside (outer periphery), and is fixed in contact with the step portion 11DS.
As a result, the second end portion 4.2T side of the locking portion 4 of the male connector 2 is in a direction in which the fixing portion 10 ′ is loosened by the frictional resistance with the straight portion 11S and the contact with the step portion 11DS (stopper) (first direction). 2 end side), and tightening of the connecting portion of the male connector 2 and the female connector 15 is not loosened.

固定具１０´は、後方部１０Ｂの第１内径ＩＤ１と第２内径ＩＤ２との間に第３内径ＩＤ３を有する。
第３内径ＩＤ３は、第１テーパーＴＰ１の第２端部側から突部１１Ｔ´の第１端部側（段部１１ＤＳ）に至るまでの内径である。
第３内径ＩＤ３は、長さＬ１１Ｓを有する。
第１内径ＩＤ１、第２内径ＩＤ２及び第３内径ＩＤ３の大きさは、ＩＤ１＞ＩＤ３＞ＩＤ２となるように形成している。
前記したようにストレート部１１Ｓに、オスコネクタ２のいわゆる「緩み防止」機能を付与するために、係止部４の外径４Ｄの大きさ（径）を１００とすると、ＩＤ３の大きさは、９９〜９５、好ましくは９９〜９７、より好ましくは９８に形成するのが良い。
第２テーパーＴＰ２、突部１１Ｔ、第１テーパーＴＰ１、ストレート部１１Ｓのそれぞれの長手方向の長さをそれぞれ、ＬＴＰ２、Ｌ１１Ｔ、ＬＴＰ１、長さＬ１１Ｓとすると、これらの長さの関係は、図１１の例示では、Ｌ１１Ｓ＞Ｌ１１Ｔ＞ＬＴＰ２＞ＬＴＰ１の順に長くなるように形成しているが、固定具１０´（ロックナット）の緩みを防止できるのであれば、これらの長さの関係は、どのようにでも調節することができる。
The fixture 10 ′ has a third inner diameter ID3 between the first inner diameter ID1 and the second inner diameter ID2 of the rear portion 10B.
The third inner diameter ID3 is an inner diameter from the second end portion side of the first taper TP1 to the first end portion side (step portion 11DS) of the protrusion 11T ′.
The third inner diameter ID3 has a length L11S.
The first inner diameter ID1, the second inner diameter ID2, and the third inner diameter ID3 are formed such that ID1>ID3> ID2.
As described above, in order to give the so-called “loosening prevention” function of the male connector 2 to the straight portion 11S, when the size (diameter) of the outer diameter 4D of the locking portion 4 is 100, the size of ID3 is: 99 to 95, preferably 99 to 97, more preferably 98 is preferable.
When the lengths in the longitudinal direction of the second taper TP2, the protrusion 11T, the first taper TP1, and the straight portion 11S are respectively LTP2, L11T, LTP1, and length L11S, the relationship between these lengths is shown in FIG. In this example, the length is formed in the order of L11S>L11T>LTP2> LTP1, but if the fixture 10 ′ (lock nut) can be prevented from loosening, the relationship between these lengths is Can also be adjusted.

固定具１０、１０´、オスコネクタ２、メスコネクタ２の構成材料として、硬質部材ないし半硬質部材が好ましい。
硬質部材ないし半硬質部材であれば何でもよいが、その中でも、例えばポリカーボネート、ポリエチレン、ポリプロピレン、ポリスチレン、ＡＢＳ、メタクリル樹脂、アクリル樹脂等の硬質ないし半硬質プラスチック等が使用される。
なお硬質部材とは曲げ弾性率が７００ＭＰａ（ＡＳＴＭＤ７９０）以上の硬質プラスチックを全て含み、半硬質部材とは曲げ弾性率が７０ＭＰａを超え７００ＭＰａ未満の半硬質プラスチックを全て含む。
As a constituent material of the fixtures 10 and 10 ′, the male connector 2, and the female connector 2, a rigid member or a semi-rigid member is preferable.
Any hard member or semi-rigid member may be used. Among them, for example, hard or semi-rigid plastics such as polycarbonate, polyethylene, polypropylene, polystyrene, ABS, methacrylic resin, and acrylic resin are used.
The hard member includes all hard plastics having a flexural modulus of 700 MPa (ASTM D790) or more, and the semi-hard member includes all semi-rigid plastics having a flexural modulus of more than 70 MPa and less than 700 MPa.

本願発明では、オスコネクタ２の係止部４の第２端部側と固定具１０、１０´の第１テーパーＴＰ１との接触部［係合部］との摩擦抵抗により、係合を維持するものであるから、オスコネクタ２を硬質の樹脂で形成し、固定具１０、１０´を半硬質の樹脂で形成するのが好ましい。
また、オスコネクタ２を半硬質の樹脂で形成し、固定具１０、１０´を硬質の樹脂で形成してもよい。
In the present invention, the engagement is maintained by the frictional resistance between the second end side of the locking portion 4 of the male connector 2 and the contact portion [engagement portion] between the first taper TP1 of the fixtures 10 and 10 ′. Therefore, it is preferable that the male connector 2 is formed of a hard resin and the fixtures 10 and 10 ' are formed of a semi-hard resin.
Alternatively, the male connector 2 may be formed of a semi-hard resin, and the fixtures 10 , 10 ′ may be formed of a hard resin.

１接続部材
２オスコネクタ
２Ｆ前方部
２Ｍ中間部
２Ｂ後方部
４係止部
ＣＲ（係止部の側部方向の第２端部側の）角部
４．２Ｔ（参考例の係止部の）第２端部
１０固定具（ルアーロック）
１０´ 固定具（ルアーロック）
１０Ｆ前方部
１０Ｂ後方部
１０ＤＳ段部
１１螺子
１１Ｔ突部
１１Ｔ´突部
１１ＤＳ段部
１１Ｓストレート部
１５メスコネクタ
１５Ｆ前方部
１５Ｂ後方部
１８螺子
１９翼状の突起部
ＴＢ１第１チューブ
ＴＢ２第２チューブ DESCRIPTION OF SYMBOLS 1 Connection member 2 Male connector 2F Front part 2M Middle part 2B Back part 4 Locking part
CR (on the second end side in the direction of the side of the locking portion) corner portion 4.2T (second locking portion in the reference example ) second end 10 fixing tool (luer lock)
10 'Fixture (Lure Lock)
10F Front part 10B Rear part 10DS Step part 11 Screw 11T Projection part 11T 'Projection part 11DS Step part 11S Straight part 15 Female connector 15F Front part 15B Rear part 18 Screw 19 Wing-like projection part TB1 First tube TB2 Second tube

Claims

A male connector (2), a fixture (10) and a female connector (15);
The male connector (2), the fixture (10), and the female connector (15) have a longitudinal direction and a side direction that intersects the longitudinal direction substantially perpendicularly, and the longitudinal direction is a first end portion. And a second end,
The male connector (2) has a front part (2F) on the first end side, a rear part (2B) on the second end side, the front part (2F) and the rear part (2B). ) And an intermediate portion (2M) between which the locking portion (4) protrudes in the direction of the side of the intermediate portion (2M). Fixed integrally with the
The fixture (10) forms a step portion (10DS) to the inner wall, forming the stepped portion (10DS) as a boundary, the first end portion than the step portion (10DS) as the front portion (10F) Then, the second end side of the step (10DS ) is formed as the rear part (10B),
The front portion (10F) forms a screw (11) on the inner wall surface,
The inner wall surface of the rear part (10B) forms a protrusion (11T) and a first taper (TP1) from the second end side toward the first end side,
The first taper (TP1) is formed so as to rise from the second end side to the first end side,
The rear part (10B) has a first inner diameter (ID1) and a second inner diameter (ID2),
The first inner diameter (ID1) of the rear part (10B) of the fixture (10) is the inner diameter from the first end side of the first taper (TP1) to the first end part side of the rear part (10B). ,
The second inner diameter (ID2) of the rear part (10B) of the fixture (10) is the inner diameter of the area where the protrusion (11T) is formed,
The size of the first inner diameter (ID1) and the second inner diameter (ID2) is formed to satisfy ID1> ID2.
The female connector (15) has a front part (15F) on the first end side and a rear part (15B) on the second end side,
The rear portion (15B) forms a screw (18) in the side direction on the second end side, and the screw (18) is a screw that is screwed with the screw (11) of the fixture (10). Yes,
When the size of the outer diameter (4D) of the locking portion (4) of the male connector (2) is 100,
The second inner diameter (ID2) is formed in the range of 80 to 99,
The first inner diameter (ID1) has a size of 100 to 110,
When the front part (2F) of the male connector (2) is connected to the rear part (15B) of the female connector (15), and the connection part is tightened and fixed from the outer periphery with the fixture (10), the male connector The locking portion (4) of the connector (2) has a first inner diameter (ID1) of the fixture (10), with a portion having an outer diameter (4D) extending from the first end side to the second end side. Located close to the formation area of the first taper (TP1),
A corner (CR) on the second end side of the locking portion (4) of the male connector (2) is engaged with a first taper (T1) of the fixture (10), and the male connector (2 ) Due to the frictional resistance between the second end side of the locking portion (4) and the first taper (TP1) of the fixture (10),
The fixture (10) is prevented from moving toward the second end, which is the direction in which the tightening is loosened, and the loosening of the connecting portion between the male connector (2) and the female connector (15) is prevented. A connecting member (1), characterized in that

The locking part (4) of the male connector (2) has an outer diameter (4D) in the side part direction,
The relationship between the size of the outer diameter (4D) and the size of the first inner diameter (ID1) and the second inner diameter (ID2) of the rear part (10B) of the fixture (10) is as follows:
(A) The first inner diameter (ID1)> the outer diameter (4D)> the second inner diameter (ID2) is formed in this order, or (B) the first inner diameter (ID1) and the outer portion of the locking portion (4). Forming the same diameter (4D), and forming the first inner diameter (ID1) and the outer diameter (4D) of the locking portion (4) larger than the second inner diameter (ID2);
(First inner diameter (ID1) = outer diameter (4D))> second inner diameter (ID2).
Connection member (1) according to claim 1, characterized in that

The connecting member (1) according to claim 1 or 2 , wherein a slope (θ1) of the first taper (TP1) of the fixture (10) is formed at 15 to 75 degrees.

The male connector (2) is formed of a rigid member, and the fixture (10) is formed of a semi-rigid member, or the male connector (2) is formed of a semi-rigid member, and the fixture (10) is formed. The connection member (1) according to any one of claims 1 to 3 , wherein the connection member (1) is formed of a hard member.

A medical device comprising the connecting member (1) according to any one of claims 1 to 4 .