JP2019183992A5 - - Google Patents

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JP2019183992A5
JP2019183992A5 JP2018076830A JP2018076830A JP2019183992A5 JP 2019183992 A5 JP2019183992 A5 JP 2019183992A5 JP 2018076830 A JP2018076830 A JP 2018076830A JP 2018076830 A JP2018076830 A JP 2018076830A JP 2019183992 A5 JP2019183992 A5 JP 2019183992A5
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elastic
pipe
connecting pipe
pressing
tip
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JP7087612B2 (en
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Priority to PCT/JP2019/013647 priority patent/WO2019198533A1/en
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上記目的を達成するため、請求項１に記載の配管構造体は、
管状の第１管部材（１２）内から管状の第２管部材（１４）内へ流体が流通するように第１管部材と第２管部材とが互いに絶縁された状態で接続された配管構造体であって、
第１管部材の一部を構成しその第１管部材の先端（１２ａ）を含み、一軸心（ＣＬ）の軸方向（ＤＲａ）へ延びるように形成された第１接続管部（１２１）と、
第２管部材の一部を構成しその第２管部材の先端（１４ａ）を含み、軸方向へ延びるように形成され、軸方向において第１管部材の先端に対し隙間（２０）を空けて第２管部材の先端を対向させるように第１接続管部に対して直列に配置された第２接続管部（１４１）と、
第１接続管部が挿入された管状の第１弾性部（１６１）と第２接続管部が挿入された管状の第２弾性部（１６２）とを有し、弾力性および絶縁性を備えた弾性部材（１６）と、
第１弾性部が挿入されており、第１弾性部を第１接続管部に対して押し付けた状態で保持する管状の第１押圧部（１８１）と、
第２弾性部が挿入されており、第２弾性部を第２接続管部に対して押し付けた状態で保持する管状の第２押圧部（１８２）とを備え、
第１管部材の先端と第２管部材の先端との間には、絶縁性を備えたスペーサ部（１６３、２２１）が設けられ、
第２弾性部は、第１弾性部から連続的につながっており、
第１接続管部は、その第１接続管部の外周面（１２１ａ）に設けられた第１シール保持部（１２２）を有し、
第１シール保持部は、その第１シール保持部に第１弾性部が押し付けられることにより、第１弾性部との間で気密性を発揮すると共に、第１接続管部が第１弾性部から引き抜かれることを妨げる保持力を発揮し、
第２接続管部は、その第２接続管部の外周面（１４１ａ）に設けられた第２シール保持部（１４２）を有し、
第２シール保持部は、その第２シール保持部に第２弾性部が押し付けられることにより、第２弾性部との間で気密性を発揮すると共に、第２接続管部が第２弾性部から引き抜かれることを妨げる保持力を発揮し、
弾性部材は、その弾性部材のうち、第１押圧部と第２押圧部とに押圧されることによって第１管部材の先端と第２管部材の先端との間の隙間に入り込んだ状態になっている部分を、上記スペーサ部として有している。
In order to achieve the above object, the piping structure according to claim 1 is
A piping structure in which the first pipe member and the second pipe member are connected in an insulated state so that a fluid flows from the inside of the tubular first pipe member (12) to the inside of the tubular second pipe member (14). The body
A first connecting pipe portion (121) formed as a part of the first pipe member, including the tip (12a) of the first pipe member, and extending in the axial direction (DRa) of the uniaxial center (CL). When,
It constitutes a part of the second pipe member, includes the tip (14a) of the second pipe member, is formed so as to extend in the axial direction, and has a gap (20) with respect to the tip of the first pipe member in the axial direction. A second connecting pipe portion (141) arranged in series with the first connecting pipe portion so that the tips of the second pipe members face each other,
It has a tubular first elastic portion (161) into which the first connecting pipe portion is inserted and a tubular second elastic portion (162) into which the second connecting pipe portion is inserted, and has elasticity and insulation. Elastic member (16) and
A tubular first pressing portion (181) into which the first elastic portion is inserted and holding the first elastic portion in a pressed state against the first connecting pipe portion, and
A tubular second pressing portion (182) into which a second elastic portion is inserted and holding the second elastic portion in a pressed state against the second connecting pipe portion is provided.
A spacer portion (163, 221) having an insulating property is provided between the tip of the first pipe member and the tip of the second pipe member.
The second elastic part is continuously connected to the first elastic part, and is connected to the first elastic part.
The first connecting pipe portion has a first seal holding portion (122) provided on the outer peripheral surface (121a) of the first connecting pipe portion.
The first seal holding portion exhibits airtightness with the first elastic portion by pressing the first elastic portion against the first seal holding portion, and the first connecting pipe portion is separated from the first elastic portion. Demonstrates holding power that prevents it from being pulled out,
The second connecting pipe portion has a second seal holding portion (142) provided on the outer peripheral surface (141a) of the second connecting pipe portion.
The second seal holding portion exhibits airtightness with the second elastic portion by pressing the second elastic portion against the second seal holding portion, and the second connecting pipe portion is separated from the second elastic portion. Demonstrates holding power that prevents it from being pulled out ,
The elastic member is in a state of being pressed by the first pressing portion and the second pressing portion of the elastic member so as to enter the gap between the tip of the first pipe member and the tip of the second pipe member. The portion is provided as the spacer portion.

Claims (15)

管状の第１管部材（１２）内から管状の第２管部材（１４）内へ流体が流通するように前記第１管部材と前記第２管部材とが互いに絶縁された状態で接続された配管構造体であって、
前記第１管部材の一部を構成し該第１管部材の先端（１２ａ）を含み、一軸心（ＣＬ）の軸方向（ＤＲａ）へ延びるように形成された第１接続管部（１２１）と、
前記第２管部材の一部を構成し該第２管部材の先端（１４ａ）を含み、前記軸方向へ延びるように形成され、前記軸方向において前記第１管部材の先端に対し隙間（２０）を空けて前記第２管部材の先端を対向させるように前記第１接続管部に対して直列に配置された第２接続管部（１４１）と、
前記第１接続管部が挿入された管状の第１弾性部（１６１）と前記第２接続管部が挿入された管状の第２弾性部（１６２）とを有し、弾力性および絶縁性を備えた弾性部材（１６）と、
前記第１弾性部が挿入されており、前記第１弾性部を前記第１接続管部に対して押し付けた状態で保持する管状の第１押圧部（１８１）と、
前記第２弾性部が挿入されており、前記第２弾性部を前記第２接続管部に対して押し付けた状態で保持する管状の第２押圧部（１８２）とを備え、
前記第１管部材の先端と前記第２管部材の先端との間には、絶縁性を備えたスペーサ部（１６３）が設けられ、
前記第２弾性部は、前記第１弾性部から連続的につながっており、
前記第１接続管部は、該第１接続管部の外周面（１２１ａ）に設けられた第１シール保持部（１２２）を有し、
前記第１シール保持部は、該第１シール保持部に前記第１弾性部が押し付けられることにより、前記第１弾性部との間で気密性を発揮すると共に、前記第１接続管部が前記第１弾性部から引き抜かれることを妨げる保持力を発揮し、
前記第２接続管部は、該第２接続管部の外周面（１４１ａ）に設けられた第２シール保持部（１４２）を有し、
前記第２シール保持部は、該第２シール保持部に前記第２弾性部が押し付けられることにより、前記第２弾性部との間で気密性を発揮すると共に、前記第２接続管部が前記第２弾性部から引き抜かれることを妨げる保持力を発揮し、
前記弾性部材は、該弾性部材のうち、前記第１押圧部と前記第２押圧部とに押圧されることによって前記第１管部材の先端と前記第２管部材の先端との間の前記隙間に入り込んだ状態になっている部分を、前記スペーサ部として有している、配管構造体。 The first pipe member and the second pipe member are connected in a state of being insulated from each other so that a fluid flows from the inside of the tubular first pipe member (12) to the inside of the tubular second pipe member (14). It is a piping structure
A first connecting pipe portion (121) formed as a part of the first pipe member, including the tip end (12a) of the first pipe member, and extending in the axial direction (DRa) of the uniaxial center (CL). )When,
A part of the second pipe member, including the tip (14a) of the second pipe member, is formed so as to extend in the axial direction, and a gap (20) is provided with respect to the tip of the first pipe member in the axial direction. ), And the second connecting pipe portion (141) arranged in series with the first connecting pipe portion so that the tips of the second pipe members face each other.
It has a tubular first elastic portion (161) into which the first connecting pipe portion is inserted and a tubular second elastic portion (162) into which the second connecting pipe portion is inserted, and has elasticity and insulation. The elastic member (16) provided and
A tubular first pressing portion (181) into which the first elastic portion is inserted and holding the first elastic portion in a pressed state against the first connecting pipe portion.
A tubular second pressing portion (182) into which the second elastic portion is inserted and holding the second elastic portion in a pressed state against the second connecting pipe portion is provided.
A spacer portion (163 ) having an insulating property is provided between the tip of the first pipe member and the tip of the second pipe member.
The second elastic portion is continuously connected to the first elastic portion.
The first connecting pipe portion has a first seal holding portion (122) provided on the outer peripheral surface (121a) of the first connecting pipe portion.
The first seal holding portion exhibits airtightness with the first elastic portion by pressing the first elastic portion against the first seal holding portion, and the first connecting pipe portion is the same. Demonstrates a holding force that prevents it from being pulled out from the first elastic part,
The second connecting pipe portion has a second seal holding portion (142) provided on the outer peripheral surface (141a) of the second connecting pipe portion.
The second seal holding portion exhibits airtightness with the second elastic portion by pressing the second elastic portion against the second seal holding portion, and the second connecting pipe portion is said to be the same. Demonstrates a holding force that prevents it from being pulled out from the second elastic part ,
The elastic member is pressed by the first pressing portion and the second pressing portion of the elastic member to form a gap between the tip of the first pipe member and the tip of the second pipe member. A pipe structure having a portion that has entered the state as the spacer portion . 前記第１押圧部と前記第２押圧部とのうちの一方または両方は、前記第１接続管部の径方向で前記スペーサ部に対し外側に重なって配置された押込み部（１８ｅ、１８１ａ、１８２ａ）を有し、
前記押込み部は、前記径方向の内側へ前記弾性部材を押圧し、前記スペーサ部を前記隙間に押し込んだ状態に保持している、請求項１に記載の配管構造体。 One or both of the first pressing portion and the second pressing portion are arranged so as to overlap outward with respect to the spacer portion in the radial direction of the first connecting pipe portion (18e, 181a, 182a). )
The piping structure according to claim 1 , wherein the pushing portion presses the elastic member inward in the radial direction and holds the spacer portion in a state of being pushed into the gap. 前記第１押圧部と前記第２押圧部は、連続的につながって押圧管部材（１８）を構成しており、
前記押圧管部材は、前記第１接続管部の径方向で前記スペーサ部に対し外側に重なって配置された押込み部（１８ｅ）を有し、
前記押込み部は、前記径方向の内側へ前記弾性部材を押圧し、前記スペーサ部を前記隙間に押し込んだ状態に保持している、請求項１に記載の配管構造体。 The first pressing portion and the second pressing portion are continuously connected to form a pressing tube member (18).
The pressing tube member has a pushing portion (18e) arranged so as to overlap the spacer portion on the outer side in the radial direction of the first connecting pipe portion.
The piping structure according to claim 1 , wherein the pushing portion presses the elastic member inward in the radial direction and holds the spacer portion in a state of being pushed into the gap. 前記第１押圧部は、径方向内側へ折り返された形状を成す折返し部（１８１ｂ）を、前記軸方向における前記第２押圧部側とは反対側の端部に有し、
前記折返し部は、前記第１弾性部に密着している、請求項１ないし３のいずれか１つに記載の配管構造体。 The first pressing portion has a folded portion (181b) having a shape folded inward in the radial direction at an end portion opposite to the second pressing portion side in the axial direction.
The piping structure according to any one of claims 1 to 3 , wherein the folded-back portion is in close contact with the first elastic portion. 管状の第１管部材（１２）内から管状の第２管部材（１４）内へ流体が流通するように前記第１管部材と前記第２管部材とが互いに絶縁された状態で接続された配管構造体であって、
前記第１管部材の一部を構成し該第１管部材の先端（１２ａ）を含み、一軸心（ＣＬ）の軸方向（ＤＲａ）へ延びるように形成された第１接続管部（１２１）と、
前記第２管部材の一部を構成し該第２管部材の先端（１４ａ）を含み、前記軸方向へ延びるように形成され、前記軸方向において前記第１管部材の先端に対し隙間（２０）を空けて前記第２管部材の先端を対向させるように前記第１接続管部に対して直列に配置された第２接続管部（１４１）と、
前記第１接続管部が挿入された管状の第１弾性部（１６１）と前記第２接続管部が挿入された管状の第２弾性部（１６２）とを有し、弾力性および絶縁性を備えた弾性部材（１６）と、
前記第１弾性部が挿入されており、前記第１弾性部を前記第１接続管部に対して押し付けた状態で保持する管状の第１押圧部（１８１）と、
前記第２弾性部が挿入されており、前記第２弾性部を前記第２接続管部に対して押し付けた状態で保持する管状の第２押圧部（１８２）とを備え、
前記第１管部材の先端と前記第２管部材の先端との間には、絶縁性を備えたスペーサ部（１６３、２２１）が設けられ、
前記第２弾性部は、前記第１弾性部から連続的につながっており、
前記第１接続管部は、該第１接続管部の外周面（１２１ａ）に設けられた第１シール保持部（１２２）を有し、
前記第１シール保持部は、該第１シール保持部に前記第１弾性部が押し付けられることにより、前記第１弾性部との間で気密性を発揮すると共に、前記第１接続管部が前記第１弾性部から引き抜かれることを妨げる保持力を発揮し、
前記第２接続管部は、該第２接続管部の外周面（１４１ａ）に設けられた第２シール保持部（１４２）を有し、
前記第２シール保持部は、該第２シール保持部に前記第２弾性部が押し付けられることにより、前記第２弾性部との間で気密性を発揮すると共に、前記第２接続管部が前記第２弾性部から引き抜かれることを妨げる保持力を発揮し、
前記第１押圧部は、径方向内側へ折り返された形状を成す折返し部（１８１ｂ）を、前記軸方向における前記第２押圧部側とは反対側の端部に有し、
前記折返し部は、前記第１弾性部に密着している、配管構造体。 The first pipe member and the second pipe member are connected in a state of being insulated from each other so that a fluid flows from the inside of the tubular first pipe member (12) to the inside of the tubular second pipe member (14). It is a piping structure
A first connecting pipe portion (121) formed as a part of the first pipe member, including the tip end (12a) of the first pipe member, and extending in the axial direction (DRa) of the uniaxial center (CL). )When,
A part of the second pipe member, including the tip (14a) of the second pipe member, is formed so as to extend in the axial direction, and a gap (20) is provided with respect to the tip of the first pipe member in the axial direction. ), And the second connecting pipe portion (141) arranged in series with the first connecting pipe portion so that the tips of the second pipe members face each other.
It has a tubular first elastic portion (161) into which the first connecting pipe portion is inserted and a tubular second elastic portion (162) into which the second connecting pipe portion is inserted, and has elasticity and insulation. The elastic member (16) provided and
A tubular first pressing portion (181) into which the first elastic portion is inserted and holding the first elastic portion in a pressed state against the first connecting pipe portion.
A tubular second pressing portion (182) into which the second elastic portion is inserted and holding the second elastic portion in a pressed state against the second connecting pipe portion is provided.
A spacer portion (163, 221) having an insulating property is provided between the tip of the first pipe member and the tip of the second pipe member.
The second elastic portion is continuously connected to the first elastic portion.
The first connecting pipe portion has a first seal holding portion (122) provided on the outer peripheral surface (121a) of the first connecting pipe portion.
The first seal holding portion exhibits airtightness with the first elastic portion by pressing the first elastic portion against the first seal holding portion, and the first connecting pipe portion is the same. Demonstrates a holding force that prevents it from being pulled out from the first elastic part,
The second connecting pipe portion has a second seal holding portion (142) provided on the outer peripheral surface (141a) of the second connecting pipe portion.
The second seal holding portion exhibits airtightness with the second elastic portion by pressing the second elastic portion against the second seal holding portion, and the second connecting pipe portion is said to be the same. Demonstrates a holding force that prevents it from being pulled out from the second elastic part ,
The first pressing portion has a folded portion (181b) having a shape folded inward in the radial direction at an end portion opposite to the second pressing portion side in the axial direction.
The folded portion is a piping structure that is in close contact with the first elastic portion . 前記弾性部材は、該弾性部材の成形された成形形状の一部分として前記スペーサ部（１６３）を有している、請求項５に記載の配管構造体。 The piping structure according to claim 5 , wherein the elastic member has the spacer portion (163) as a part of the molded shape of the elastic member. 前記スペーサ部（２２１）は、前記弾性部材とは別の部品として構成されている、請求項５に記載の配管構造体。 The piping structure according to claim 5 , wherein the spacer portion (221) is configured as a component separate from the elastic member. 前記第１接続管部および前記第２接続管部の内側に、前記スペーサ部から連続的につながった管内配置部（１６４、２２２）が設けられ、
前記管内配置部は筒形状を成し、前記第１接続管部の内壁面（１２１ｂ）に沿って前記軸方向に延び且つ前記第２接続管部の内壁面（１４１ｂ）に沿って前記軸方向に延びている、請求項６または７に記載の配管構造体。 Inside the first connecting pipe portion and the second connecting pipe portion, an in-pipe arrangement portion (164, 222) continuously connected from the spacer portion is provided.
The in-pipe arrangement portion has a tubular shape, extends in the axial direction along the inner wall surface (121b) of the first connecting pipe portion, and extends in the axial direction along the inner wall surface (141b) of the second connecting pipe portion. The piping structure according to claim 6 or 7 , which extends to. 前記第１管部材と前記第１押圧部は何れも金属製であり、
前記第１押圧部は、前記第１管部材に対し電気的に絶縁されている、請求項１ないし８のいずれか１つに記載の配管構造体。 Both the first pipe member and the first pressing portion are made of metal.
The piping structure according to any one of claims 1 to 8 , wherein the first pressing portion is electrically insulated from the first pipe member. 前記第１押圧部は、径方向内側へ窪んだ凹形状が形成されるようにカシメられた状態になっており、前記カシメられた状態になることで前記第１弾性部を前記第１接続管部に対して押し付けている、請求項１ないし９のいずれか１つに記載の配管構造体。 The first pressing portion is in a state of being crimped so as to form a concave shape recessed inward in the radial direction, and when the first pressing portion is in the crimped state, the first elastic portion is connected to the first connecting pipe. The piping structure according to any one of claims 1 to 9 , which is pressed against a portion. 前記凹形状は、前記第１押圧部の全周にわたって形成され、または、前記第１押圧部の周方向に並ぶように複数に分かれて形成されている、請求項１０に記載の配管構造体。 The piping structure according to claim 10 , wherein the concave shape is formed over the entire circumference of the first pressing portion, or is formed in a plurality of portions so as to line up in the circumferential direction of the first pressing portion. 前記第１シール保持部は、前記第１接続管部の全周にわたって延びる溝（１２２ａ）が前記軸方向に複数並んだ凹凸形状を成している、請求項１ないし１１のいずれか１つに記載の配管構造体。 The first seal holding portion has a concavo-convex shape in which a plurality of grooves (122a) extending over the entire circumference of the first connecting pipe portion are arranged in the axial direction, according to any one of claims 1 to 11. The described piping structure. 前記第１管部材の先端と前記第２管部材の先端はそれぞれ、径方向外側の周縁（１２ｂ、１４ｂ）が面取りされた形状を成している、請求項１ないし１２のいずれか１つに記載の配管構造体。 The tip of the first pipe member and the tip of the second pipe member each have a shape in which the outer peripheral edges (12b, 14b) in the radial direction are chamfered, according to any one of claims 1 to 12. The described piping structure. 管状の第１管部材（１２）内から管状の第２管部材（１４）内へ流体が流通するように前記第１管部材と前記第２管部材とが互いに絶縁された状態で接続された配管構造体の製造方法であって、
前記第１管部材、前記第２管部材、弾力性および絶縁性を備えた管状の弾性部材（１６）、および、管状の押圧管部材（１８）を用意することと、
前記押圧管部材の内側へ前記弾性部材を挿入することと、
前記第１管部材のうち第１シール保持部（１２２）と該第１管部材の先端（１２ａ）とを含む第１接続管部（１２１）を前記弾性部材の軸方向（ＤＲａ）の一方側から前記弾性部材の内側に挿入し、且つ、前記第２管部材のうち第２シール保持部（１４２）と該第２管部材の先端（１４ａ）とを含む第２接続管部（１４１）を前記軸方向の他方側から前記弾性部材の内側に挿入し、前記軸方向において前記第１管部材の先端に対し隙間（２０）を空けて前記第２管部材の先端を対向させた状態で位置決めすることと、
前記押圧管部材に対する前記弾性部材の挿入後で前記位置決め後に、前記押圧管部材のうち前記第１接続管部に対し径方向外側に重なる部位において前記押圧管部材を径方向内側へカシメると共に、前記押圧管部材のうち前記第２接続管部に対し径方向外側に重なる部位において前記押圧管部材を径方向内側へカシメるカシメ加工を行うこととを含み、
前記第１シール保持部は前記第１接続管部の外周面（１２１ａ）に設けられ、前記カシメ加工で前記第１シール保持部に前記弾性部材が押し付けられることにより、前記弾性部材との間で気密性を発揮すると共に、前記第１接続管部が前記弾性部材から引き抜かれることを妨げる保持力を発揮し、
前記第２シール保持部は前記第２接続管部の外周面（１４１ａ）に設けられ、前記カシメ加工で前記第２シール保持部に前記弾性部材が押し付けられることにより、前記弾性部材との間で気密性を発揮すると共に、前記第２接続管部が前記弾性部材から引き抜かれることを妨げる保持力を発揮し、
前記カシメ加工では、前記弾性部材の厚みが圧縮されるように該弾性部材が弾性変形することに伴って、該弾性部材の一部分が前記第１管部材の先端と前記第２管部材の先端との間の前記隙間に入り込む、配管構造体の製造方法。 The first pipe member and the second pipe member are connected in a state of being insulated from each other so that a fluid flows from the inside of the tubular first pipe member (12) to the inside of the tubular second pipe member (14). It is a method of manufacturing a piping structure.
To prepare the first tube member, the second tube member, a tubular elastic member (16) having elasticity and insulation, and a tubular pressing tube member (18).
Inserting the elastic member inside the pressing tube member and
Of the first pipe member, the first connecting pipe portion (121) including the first seal holding portion (122) and the tip end (12a) of the first pipe member is placed on one side of the elastic member in the axial direction (DRa). The second connecting pipe portion (141) which is inserted into the inside of the elastic member and includes the second seal holding portion (142) and the tip end (14a) of the second pipe member among the second pipe members. It is inserted into the elastic member from the other side in the axial direction, and positioned in the axial direction with the tip of the second pipe member facing the tip of the first pipe member with a gap (20). To do and
After inserting the elastic member into the pressing tube member and after positioning, the pressing tube member is caulked inward in the radial direction at a portion of the pressing tube member that overlaps the first connecting tube portion in the radial direction. This includes caulking the pressing tube member inward in the radial direction at a portion of the pressing tube member that overlaps the second connecting tube portion radially outward.
The first seal holding portion is provided on the outer peripheral surface (121a) of the first connecting pipe portion, and the elastic member is pressed against the first seal holding portion by the caulking process, so that the elastic member is between the elastic member and the elastic member. In addition to exhibiting airtightness, it also exerts a holding force that prevents the first connecting pipe portion from being pulled out from the elastic member.
The second seal holding portion is provided on the outer peripheral surface (141a) of the second connecting pipe portion, and the elastic member is pressed against the second seal holding portion by the caulking process to be brought into contact with the elastic member. In addition to exhibiting airtightness, it also exerts a holding force that prevents the second connecting pipe portion from being pulled out from the elastic member.
In the caulking process, as the elastic member is elastically deformed so that the thickness of the elastic member is compressed, a part of the elastic member becomes a tip of the first pipe member and a tip of the second pipe member. A method of manufacturing a pipe structure that enters the gap between the two. 第１カシメ加工としての前記カシメ加工の後に、前記押圧管部材のうち前記第１接続管部の径方向で前記隙間に対し外側に重なる部位において前記押圧管部材を前記径方向の内側へカシメる第２カシメ加工を行うことを含み、
前記第２カシメ加工では、前記弾性部材を前記隙間へ更に押し込む、請求項１４に記載の配管構造体の製造方法。 After the caulking process as the first caulking process, the pressing tube member is caulked inward in the radial direction at a portion of the pressing tube member that overlaps the gap outward in the radial direction of the first connecting tube portion. Including performing the second caulking process
The method for manufacturing a piping structure according to claim 14, wherein in the second caulking process, the elastic member is further pushed into the gap.
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