JP6636316B2 - Pipe member - Google Patents

Pipe member Download PDF

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Publication number
JP6636316B2
JP6636316B2 JP2015249538A JP2015249538A JP6636316B2 JP 6636316 B2 JP6636316 B2 JP 6636316B2 JP 2015249538 A JP2015249538 A JP 2015249538A JP 2015249538 A JP2015249538 A JP 2015249538A JP 6636316 B2 JP6636316 B2 JP 6636316B2
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JP
Japan
Prior art keywords
rib
main body
ribs
circumferential direction
pipe
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Expired - Fee Related
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JP2015249538A
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Japanese (ja)
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JP2017115924A (en
Inventor
和也 半田
和也 半田
品田　雅史
雅史 品田
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Nifco Inc
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Nifco Inc
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Priority to JP2015249538A priority Critical patent/JP6636316B2/en
Priority to PCT/JP2016/005167 priority patent/WO2017110075A1/en
Publication of JP2017115924A publication Critical patent/JP2017115924A/en
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Publication of JP6636316B2 publication Critical patent/JP6636316B2/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/115—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F16L27/111—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

本発明は、例えば高圧用のダクトなどを接続する際に用いられる管部材に関するものである。   The present invention relates to a pipe member used for connecting a high-pressure duct or the like, for example.

従来、例えば自動車の内燃機関などにおいて、タービンで吸気された空気をインタークーラーに送るためのターボダクトは、ターボダクトの寸法の違いに対応できる可撓性と、高圧による膨張を抑える高い剛性とを実現するため、蛇腹構造の接続管によって接続されている。例えば、下記特許文献１に記載されたエンジン用エアダクトホースは、蛇腹構造のうちの蛇腹***部同士を連結する補強リブが形成されている。この補強リブによって、高い剛性が実現されている。   Conventionally, for example, in an internal combustion engine of an automobile, a turbo duct that sends air taken in by a turbine to an intercooler has achieved flexibility that can respond to differences in the size of the turbo duct and high rigidity that suppresses expansion due to high pressure For this purpose, they are connected by a connecting pipe having a bellows structure. For example, in an air duct hose for an engine described in Patent Literature 1 below, a reinforcing rib for connecting bellows ridges in a bellows structure is formed. High rigidity is realized by the reinforcing ribs.

実公平３−２５４９５号公報Japanese Utility Model Publication No. 3-25495

しかし、特許文献１に記載されたエンジン用エアダクトホースは、上記したとおり補強リブによって高い剛性が実現されるが、一方で、伸縮し、または曲げられる際の可撓性が、補強リブによって損なわれる場合がある。   However, in the air duct hose for an engine described in Patent Literature 1, high rigidity is realized by the reinforcing ribs as described above, but on the other hand, flexibility at the time of expansion and contraction or bending is impaired by the reinforcing ribs. There are cases.

本発明は、この様な実情に鑑みて提案されたものである。すなわち、優れた可撓性と高い剛性とを実現することができる管部材の提供を目的とする。   The present invention has been proposed in view of such circumstances. That is, an object of the present invention is to provide a tube member that can realize excellent flexibility and high rigidity.

上記目的を達成するために、本発明に係る管部材は、***部と沈降部とが交互に連接された蛇腹形状の管本体部が備えられた管部材において、隣接する前記***部同士を連接するリブが、前記管本体部の軸方向に対して傾斜した、ことを特徴とする。   In order to achieve the above object, a pipe member according to the present invention is a pipe member provided with a bellows-shaped pipe main body in which raised portions and settled portions are alternately connected, and connects the adjacent raised portions to each other. The ribs are inclined with respect to the axial direction of the tube body.

本発明に係る管部材は、前記管本体部の外面において、前記リブが、前記管本体部の軸方向に複数形成されると共に、前記管本体部の周方向に間隔を空けて複数形成された、ことを特徴とする。   In the pipe member according to the present invention, a plurality of the ribs are formed in the outer surface of the pipe main body in the axial direction of the pipe main body, and a plurality of the ribs are formed at intervals in a circumferential direction of the pipe main body. , Characterized in that.

本発明に係る管部材は、前記管本体部の内面において、前記リブが、前記管本体部の軸方向に複数形成されると共に、前記管本体部の周方向に間隔を空けて複数形成された、ことを特徴とする。   In the tube member according to the present invention, a plurality of the ribs are formed in the inner surface of the tube body in the axial direction of the tube body, and a plurality of ribs are formed at intervals in a circumferential direction of the tube body. , Characterized in that.

本発明に係る管部材は、前記管本体部の外面における外面側***部同士の間に形成された前記リブと、前記管本体部の内面における内面側***部同士の間に形成された前記リブとが、前記管本体部の周方向においてずれて配置された、ことを特徴とする。   The pipe member according to the present invention is characterized in that the rib formed between outer surface side ridges on the outer surface of the tube main body, and the rib formed between inner surface ridges on the inner surface of the tube main body. Are arranged so as to be shifted from each other in the circumferential direction of the pipe main body.

本発明に係る管部材は、前記リブが、前記***部の高さよりも低く形成された、ことを特徴とする。   The pipe member according to the present invention is characterized in that the rib is formed lower than the height of the raised portion.

本発明に係る管部材は、前記リブの中央が、前記***部に連接された端部よりも薄く形成された、ことを特徴とする。   The tube member according to the present invention is characterized in that the center of the rib is formed thinner than the end connected to the raised portion.

本発明に係る管部材は、***部と沈降部とが交互に連接された蛇腹形状の管本体部が備えられた管部材において、隣接する前記***部同士を連接するリブが、隣接する前記***部同士の一方側に連接された一方端部と、隣接する前記***部同士の他方側に連接された他方端部とから構成され、前記一方端部と前記他方端部とが前記管本体部の周方向においてずれている、ことを特徴とする。   The pipe member according to the present invention is characterized in that, in a pipe member provided with a bellows-shaped pipe main body part in which raised parts and settling parts are alternately connected, ribs connecting the adjacent raised parts are adjacent to the adjacent raised parts. And one end connected to the other side of the adjacent raised portions, and the one end and the other end are connected to the tube body. Are shifted in the circumferential direction.

本発明に係る管部材は上記した構成である。すなわち、リブが管本体部の軸方向に対して傾斜しているため、軸方向からの外力が、リブと交差する方向に加えられる。そのため、リブは、傾斜している方向に撓みやすく、優れた可撓性を実現することができる。また、高圧によって膨張させようとする外力に対してリブに応力が作用する際、リブが管本体部の軸方向に対して傾斜している分、隣接する***部同士が、周方向に広い範囲で繋ぎ留められ、高い剛性を実現することができる。   The pipe member according to the present invention has the above-described configuration. That is, since the rib is inclined with respect to the axial direction of the pipe main body, an external force from the axial direction is applied in a direction intersecting the rib. Therefore, the rib can easily bend in the inclined direction, and can realize excellent flexibility. Further, when stress acts on the rib against an external force that is to be expanded by high pressure, the adjacent ridges are widened in the circumferential direction by an amount corresponding to the inclination of the rib with respect to the axial direction of the tube main body. And high rigidity can be realized.

なお、仮にリブが管本体部の軸方向と同じ向きに形成されている場合、軸方向からの外力が、リブと同一直線上に加えられるため、撓み辛い。また、リブが管本体部の軸方向と同じ向きである分、リブを傾斜させた場合と比較してリブの体積が少なく、隣接する***部同士が繋ぎ留められる範囲が周方向において狭いため、高い剛性を実現することができない。   If the rib is formed in the same direction as the axial direction of the pipe main body, the external force from the axial direction is applied on the same straight line as the rib, so that the rib is hardly bent. Also, since the ribs are in the same direction as the axial direction of the pipe main body, the volume of the ribs is smaller than in the case where the ribs are inclined, and the range in which the adjacent raised portions are fastened to each other is narrow in the circumferential direction, High rigidity cannot be achieved.

本発明に係る管部材は、管本体部の外面（または内面）において、リブが、管本体部の軸方向に複数形成されると共に、管本体部の周方向に間隔を空けて複数形成されている。したがって、管本体部の全体に対して優れた可撓性と、高い剛性を実現することができる。   In the pipe member according to the present invention, a plurality of ribs are formed on the outer surface (or inner surface) of the pipe main body in the axial direction of the pipe main body, and a plurality of ribs are formed at intervals in the circumferential direction of the pipe main body. I have. Therefore, excellent flexibility and high rigidity can be realized for the entire pipe main body.

本発明に係る管部材は、管本体部の外面における外面側***部同士の間に形成されたリブと、管本体部の内面における内面側***部同士の間に形成されたリブとが、管本体部の周方向においてずれて配置されている。このように、内面および外面におけるリブの位置を、成形方法に応じて適宜選択することができる。   The pipe member according to the present invention is characterized in that the rib formed between the outer surface side ridges on the outer surface of the tube main body and the rib formed between the inner surface side ridges on the inner surface of the tube main body include a pipe. They are arranged shifted in the circumferential direction of the main body. Thus, the positions of the ribs on the inner surface and the outer surface can be appropriately selected according to the molding method.

本発明に係る管部材は、リブが***部の高さよりも低く形成されている。すなわち、***部の頂点同士の間を開放させることで、適度な剛性を実現することができる。   In the tube member according to the present invention, the rib is formed to be lower than the height of the raised portion. That is, by opening between the vertices of the raised portion, appropriate rigidity can be realized.

本発明に係る管部材は、リブの中央が、***部に連接された端部よりも薄く形成されている。この構成により、リブは、端部よりも薄い中央が撓みやすく、優れた可撓性を実現することができる。   In the pipe member according to the present invention, the center of the rib is formed thinner than the end connected to the raised portion. With this configuration, the center of the rib, which is thinner than the end, is easily bent, and excellent flexibility can be realized.

本発明に係る管部材は、隣接する***部同士を連接するリブが、隣接する***部同士の一方側に連接された一方端部と、隣接する***部同士の他方側に連接された他方端部とから構成され、一方端部と他方端部とが管本体部の周方向においてずれている。すなわち、リブの各端部が周方向にずれていることから、リブが***部に対して傾斜しているため、外力がリブと交差する方向に加えられる。そのため、リブは、傾斜している方向に撓みやすく、優れた可撓性を実現することができる。また、高圧によって膨張させようとする外力に対してリブに応力が作用する際、リブが***部に対して傾斜している分、隣接する***部同士が、周方向に広い範囲で繋ぎ留められ、高い剛性を実現することができる。   The pipe member according to the present invention is characterized in that a rib connecting the adjacent raised portions is connected to one end of the adjacent raised portions and the other end connected to the other side of the adjacent raised portions. And one end and the other end are displaced in the circumferential direction of the tube main body. That is, since each end of the rib is displaced in the circumferential direction, the rib is inclined with respect to the raised portion, so that an external force is applied in a direction intersecting the rib. Therefore, the rib can easily bend in the inclined direction, and can realize excellent flexibility. In addition, when stress acts on the ribs against an external force that is to be expanded by high pressure, the adjacent ridges are connected to each other in a wide range in the circumferential direction because the ribs are inclined with respect to the ridges. , High rigidity can be realized.

本発明の実施形態に係る管部材の外観斜視図である。It is an appearance perspective view of a tube member concerning an embodiment of the present invention. 本発明の実施形態に係る管部材の外観が示され、（ａ）は軸方向の上方から視した上面図、（ｂ）は側方から視した側面図、（ｃ）はＡ−Ａ縦断面図、（ｄ）はリブの拡大図である。1A and 1B show an external view of a tube member according to an embodiment of the present invention, in which FIG. 1A is a top view as viewed from above in an axial direction, FIG. 2B is a side view as viewed from a side, and FIG. FIG. 3D is an enlarged view of the rib. 本発明の実施形態に係る管部材の側面が示され、（ａ）は部分縦断面図、（ｂ）はリブの断面拡大図である。1A and 1B show side views of a pipe member according to an embodiment of the present invention, in which FIG. 1A is a partial longitudinal sectional view, and FIG. 1B is an enlarged sectional view of a rib. 本発明の実施形態に係る管部材の使用状態の概略が示された使用状態図である。FIG. 4 is a use state diagram schematically showing a use state of the pipe member according to the embodiment of the present invention.

以下に、本発明の実施形態に係る管部材を図面に基づいて説明する。図１および図２は、本発明の実施形態に係る管部材１０の外観が示されている。   Hereinafter, a pipe member according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show the appearance of a tube member 10 according to an embodiment of the present invention.

例えば、熱可塑性エラストマーなどの樹脂で成形された管部材１０は、図１および図２に示されているとおり、円筒状であり、互いに平行な***部と沈降部とが軸方向に交互に連接された蛇腹形状の管本体部１１が備えられている。すなわち、管本体部１１は側面が蛇腹形状の円筒であるため、***部および沈降部が外面および内面にそれぞれ形成されており、管本体部１１の外面側である外面側***部１２および外面側沈降部１３の内側に、管本体部１１の内面側である内面側沈降部１５および内面側***部１４がそれぞれ形成されている。また、管本体部１１の上下両端のそれぞれは、環状の溝などによって形成された接続部１６が備えられている。なお、以下の説明では、図１を基準として、円筒状の管部材１０の長手方向を軸方向とし、管部材１０の円周方向を周方向とする。また、軸方向の一方を上方とし、他方を下方とする。   For example, as shown in FIGS. 1 and 2, the tube member 10 formed of a resin such as a thermoplastic elastomer has a cylindrical shape, and ridges and sinks parallel to each other are connected alternately in the axial direction. A bellows-shaped tube main body 11 is provided. That is, since the side of the tube main body 11 is a bellows-shaped cylinder, the protruding portion and the settling portion are formed on the outer surface and the inner surface, respectively, and the outer side protruding portion 12 which is the outer side of the tube main body 11 and the outer surface side Inside the settling portion 13, an inner settling portion 15 and an inner raised portion 14, which are inner surfaces of the pipe main body 11, are formed, respectively. Each of the upper and lower ends of the tube main body 11 is provided with a connecting portion 16 formed by an annular groove or the like. In the following description, the longitudinal direction of the cylindrical tube member 10 is defined as the axial direction, and the circumferential direction of the tube member 10 is defined as the circumferential direction with reference to FIG. Further, one in the axial direction is defined as an upper side, and the other is defined as a lower side.

管本体部１１は、隣接する各***部１２同士、１４同士の間にリブが形成されている。詳説すれば、隣接する外面側***部１２同士を連接すると共に外面側沈降部１３に形成された外面リブ１７と、隣接する内面側***部１４同士を連接すると共に内面側沈降部１５に形成された内面リブ１８とがある。外面リブ１７は、管本体部１１の外面において、軸方向に同一線上に揃えられて各外面側***部１２同士の間に形成され、この複数の外面リブ１７の一群が、周方向に等しく間隔を空けて四方に形成されている。同様に、内面リブ１８は、管本体部１１の内面において、軸方向に同一線上に揃えられて各内面側***部１４同士の間に形成され、この複数の内面リブ１８の一群が、周方向に等しく間隔を空けて四方に形成されている。   In the pipe main body 11, ribs are formed between the adjacent raised portions 12 and between the raised portions 14. More specifically, the outer ribs 17 formed on the outer settling portion 13 and the inner ribs 14 formed on the outer settled portion 13 are connected to each other, and the inner raised portions 15 are formed on the inner settled portion 15. And an inner rib 18. The outer ribs 17 are formed on the outer surface of the tube main body 11 so as to be axially aligned with each other and are formed between the respective outer surface side ridges 12, and a group of the plurality of outer ribs 17 is equally spaced in the circumferential direction. Are formed on all sides. Similarly, the inner ribs 18 are formed on the inner surface of the tube main body 11 so as to be aligned on the same line in the axial direction and between the inner surface protruding portions 14. A group of the plurality of inner ribs 18 is formed in the circumferential direction. Are formed on all sides at equal intervals.

外面リブ１７と内面リブ１８とは、周方向において等間隔にずれて配置されている。詳説すれば、外面リブ１７は、３６０度の外周面を４分割して９０度ごとにそれぞれ形成され、同様に、内面リブ１８は、３６０度の内周面を４分割して９０度ごとにそれぞれ形成されている。外面リブ１７と内面リブ１８とは、周方向に４５度ずれており、内面リブ１７と外面リブ１８とが周方向において交互に配置されている。なお、リブの数や、配置および間隔は任意である。また、リブは、外面のみ、または内面のみに形成されていてもよい。   The outer rib 17 and the inner rib 18 are arranged at equal intervals in the circumferential direction. More specifically, the outer ribs 17 are formed at every 90 degrees by dividing the outer peripheral surface of 360 degrees into four parts. Similarly, the inner ribs 18 are formed by dividing the inner peripheral surface at 360 degrees into four parts at every 90 degrees. Each is formed. The outer ribs 17 and the inner ribs 18 are shifted by 45 degrees in the circumferential direction, and the inner ribs 17 and the outer ribs 18 are alternately arranged in the circumferential direction. The number, arrangement, and spacing of the ribs are arbitrary. Further, the rib may be formed only on the outer surface or only on the inner surface.

ここで、リブについて、図面に基づいてさらに詳説する。図３は、本発明の実施形態に係る管部材１０の外面リブ１７の断面が示されている。なお、外面リブ１７と内面リブ１８とは同じ構成であるため、以下の説明では、外面リブ１７についてのみ説明する。   Here, the rib will be described in more detail with reference to the drawings. FIG. 3 shows a cross section of the outer rib 17 of the pipe member 10 according to the embodiment of the present invention. Since the outer rib 17 and the inner rib 18 have the same configuration, only the outer rib 17 will be described below.

図２および図３に示されているとおり、外面リブ１７は軸方向に対して傾斜している。詳説すれば、図２（ｄ）に示されているとおり、外面リブ１７は、隣接する外面側***部１２において、一方側である上方の外面側***部１２に連接された一方端部としての上端部１９、および他方側である下方の外面側***部１２に連接された他方端部としての下端部２０と、この各端部１９，２０同士が外面側沈降部１３において連接された中央部２１とから形成されている。   As shown in FIGS. 2 and 3, the outer ribs 17 are inclined with respect to the axial direction. More specifically, as shown in FIG. 2 (d), the outer surface rib 17 serves as one end of the adjacent outer surface side protruding portion 12 which is connected to the upper outer surface side protruding portion 12 which is one side. A lower end 20 as the other end connected to the upper end 19 and the lower outer surface protruding portion 12 on the other side, and a central portion where the ends 19 and 20 are connected to each other in the outer settling portion 13 21.

上端部１９と下端部２０とは、周方向にずれており、上下の外面側***部１２に対して鋭角に連接されているため、外面リブ１７は軸方向に対して傾斜している。なお、各***部が軸方向に対して傾斜した螺旋状である場合、この傾斜した各***部に対してリブが傾斜していればよい。   The upper end portion 19 and the lower end portion 20 are displaced in the circumferential direction and are connected to the upper and lower outer surface side protrusions 12 at an acute angle, so that the outer surface ribs 17 are inclined with respect to the axial direction. In the case where each protruding portion has a spiral shape inclined with respect to the axial direction, the rib may be inclined with respect to each inclined protruding portion.

中央部２１は、各端部１９，２０の周方向における幅よりも薄く形成され、各端部１９，２０は、中央部２１よりも幅が広く形成されている。   The central portion 21 is formed to be thinner than the circumferential width of each of the end portions 19 and 20, and each of the end portions 19 and 20 is formed to be wider than the central portion 21.

外面リブ１７は、図３（ｂ）に示されているとおり、外面側***部１２の高さよりも低く形成され、外面側***部１２の頂点同士の間が開放されている。   As shown in FIG. 3B, the outer surface rib 17 is formed to be lower than the height of the outer surface protruding portion 12, and the space between the vertices of the outer surface protruding portion 12 is open.

上記のとおり形成された管部材１０は、ダクトホースに接続される。ここで、管部材１０をダクトホースに接続した状態を図面に基づいて説明する。図４は、本発明の実施形態に係る管部材１０の使用状態の概略が示されている。   The pipe member 10 formed as described above is connected to a duct hose. Here, a state in which the pipe member 10 is connected to a duct hose will be described with reference to the drawings. FIG. 4 schematically shows a use state of the pipe member 10 according to the embodiment of the present invention.

図４に示されているとおり、接続部１６にアッパーダクトホース１およびロウアーダクトホース２がそれぞれ嵌合して接続され、このことによって各ダクトホース１，２が管部材１０を介して連結される。なお、接続部１６の形状は任意であり、接続部１６と各ダクトホース１，２との接続構造に応じて適宜変更される。接続構造は、例えば、機械式の嵌合、溶着、結束バンドによる圧着などであってもよい。   As shown in FIG. 4, the upper duct hose 1 and the lower duct hose 2 are respectively fitted and connected to the connection portion 16, whereby the respective duct hoses 1 and 2 are connected via the pipe member 10. . The shape of the connection portion 16 is arbitrary, and is appropriately changed according to the connection structure between the connection portion 16 and each of the duct hoses 1 and 2. The connection structure may be, for example, mechanical fitting, welding, crimping with a binding band, or the like.

各ダクト１，２の寸法が多少異なる場合であっても、管部材１０が撓むことで寸法の違いに対応することができる。また、各リブ１７，１８によって、高圧による膨張が抑えられる。   Even when the dimensions of the ducts 1 and 2 are slightly different, the tube member 10 can be adapted to the difference in size by bending. The ribs 17 and 18 suppress expansion due to high pressure.

次に、本実施形態の効果を説明する。   Next, effects of the present embodiment will be described.

上記したとおり、本実施形態によれば、隣接する外面側***部１２同士を連接すると共に外面側沈降部１３に形成された外面リブ１７と、隣接する内面側***部１４同士を連接すると共に内面側沈降部１５に形成された内面リブ１８とが形成されている。各リブ１７，１８は、隣接する外面側***部１２（または内面側***部１４）において、上方の外面側***部１２（または内面側***部１４）に連接された上端部１９、および下方の外面側***部１２（または内面側***部１４）に連接された下端部２０と、この各端部１９，２０同士が外面側沈降部１３（または内面側沈降部１５）において連接された中央部２１とから形成されている。上端部１９と下端部２０とは、周方向にずれており、上下の外面側***部１２（または内面側***部１４）に対して鋭角に連接されているため、各リブ１７，１８は軸方向に対して傾斜している。   As described above, according to the present embodiment, the adjacent outer-surface-side raised portions 12 are connected to each other, and the outer-surface ribs 17 formed in the outer-surface settling portion 13 are connected to the adjacent inner-surface-side raised portions 14. An inner rib 18 formed on the side settling portion 15 is formed. Each of the ribs 17 and 18 has an upper end portion 19 connected to the upper outer side protruding portion 12 (or inner side protruding portion 14) and a lower end portion 19 at the adjacent outer side protruding portion 12 (or inner side protruding portion 14). A lower end portion 20 connected to the outer-side protruding portion 12 (or the inner-side protruding portion 14), and a central portion where the respective end portions 19 and 20 are connected to each other at the outer-side subsidence portion 13 (or the inner-side subsidence portion 15). 21. The upper end 19 and the lower end 20 are displaced in the circumferential direction, and are connected to the upper and lower outer-side protrusions 12 (or the inner-side protrusions 14) at an acute angle. It is inclined to the direction.

すなわち、各端部１９，２０が周方向にずれ、各リブ１７，１８が軸方向に対して傾斜しているため、軸方向からの外力が、各リブ１７，１８と交差する方向に加えられる。そのため、各リブ１７，１８は、傾斜している方向に撓みやすく、優れた可撓性を実現することができる。また、高圧によって膨張させようとする外力に対して各リブ１７，１８に応力が作用する際、各リブ１７，１８が軸方向に対して傾斜している分、隣接する外面側***部１２（または内面側***部１４）同士が、周方向に広い範囲で繋ぎ留められ、高い剛性を実現することができる。   That is, since the end portions 19 and 20 are displaced in the circumferential direction and the ribs 17 and 18 are inclined with respect to the axial direction, an external force from the axial direction is applied in a direction intersecting with the ribs 17 and 18. . Therefore, each of the ribs 17 and 18 easily bends in the inclined direction, and excellent flexibility can be realized. Further, when a stress acts on each of the ribs 17 and 18 against an external force that is to be expanded by high pressure, the adjacent outer surface side protruding portion 12 ( Alternatively, the inner side protrusions 14) are fastened to each other in a wide range in the circumferential direction, so that high rigidity can be realized.

本実施形態によれば、外面リブ１７および内面リブ１８は、管本体部１１の外面および内面において、軸方向に同一線上に揃えられて各外面側***部１２同士および各内面側***部１４同士の間に形成され、この複数の各リブ１７，１８の各一群が、周方向に等しく間隔を空けて四方に形成されている。したがって、管本体部１１の全体に対して、均一に万遍なく優れた可撓性と、高い剛性を実現することができる。   According to the present embodiment, the outer ribs 17 and the inner ribs 18 are aligned on the same line in the axial direction on the outer surface and the inner surface of the tube main body 11 so that the respective outer surface raised portions 12 and the respective inner surface raised portions 14 are aligned. , And each group of the plurality of ribs 17 and 18 is formed on all sides at equal intervals in the circumferential direction. Therefore, excellent flexibility and high rigidity can be realized uniformly and uniformly over the entire tube main body 11.

本実施形態によれば、外面リブ１７および内面リブ１８は、３６０度の外周面および内周面を４分割して９０度ごとにそれぞれ形成され、周方向に４５度ずれており、内面リブ１７と外面リブ１８とが周方向において交互に配置されている。このように、各リブ１７，１８の位置を、成形方法に応じて適宜選択することができる。   According to the present embodiment, the outer ribs 17 and the inner ribs 18 are formed at intervals of 90 degrees by dividing the outer peripheral surface and the inner peripheral surface of 360 degrees into four, and are shifted by 45 degrees in the circumferential direction. And the outer surface ribs 18 are alternately arranged in the circumferential direction. Thus, the positions of the ribs 17 and 18 can be appropriately selected according to the molding method.

本実施形態によれば、各リブ１７，１８は、各***部１２，１４の高さよりも低く形成され、外面側***部１２の頂点同士、および内面側***部１４の頂点同士の間が開放されている。すなわち、各***部１２，１４の各頂点同士の間を開放させることで、過度な剛性を抑えて適度な剛性を実現することができる。   According to the present embodiment, each of the ribs 17 and 18 is formed to be lower than the height of each of the ridges 12 and 14, and the vertices of the outer-side ridge 12 and the vertices of the inner-side ridge 14 are open. Have been. That is, by opening the space between the vertices of the raised portions 12 and 14, it is possible to suppress excessive rigidity and realize appropriate rigidity.

本実施形態によれば、各リブ１７，１８は、中央部２１が各端部１９，２０の周方向における幅よりも薄く形成され、各端部１９，２０の幅が中央部２１よりも広く形成されている。この構成により、各リブ１７，１８は、各端部１９，２０よりも薄い中央部２１が撓みやすく、優れた可撓性を実現することができる。   According to the present embodiment, each of the ribs 17 and 18 is formed such that the central portion 21 is formed thinner than the circumferential width of each of the end portions 19 and 20, and the width of each of the end portions 19 and 20 is wider than the central portion 21. Is formed. With this configuration, the center portions 21 of the ribs 17 and 18 that are thinner than the end portions 19 and 20 are easily bent, and excellent flexibility can be realized.

以上、本発明の実施形態を詳述したが、本発明は上記実施形態に限定されるものではない。そして本発明は、特許請求の範囲に記載された事項を逸脱することがなければ、種々の設計変更を行うことが可能である。例えば、液体類の配管や、耐圧ホースなどの接続構造に用いられる。   As described above, the embodiments of the present invention have been described in detail, but the present invention is not limited to the above embodiments. The present invention is capable of various design changes without departing from the scope of the claims. For example, it is used for connection structures such as piping for liquids and pressure-resistant hoses.

１ アッパーダクトホース
２ ロウアーダクトホース
１０ 管部材
１１ 管本体部
１２ 外面側***部（***部）
１３ 外面側沈降部（沈降部）
１４ 内面側***部（***部）
１５ 内面側沈降部（沈降部）
１６ 接続部
１７ 外面リブ（リブ）
１８ 内面リブ（リブ）
１９ 上端部（一方端部）
２０ 下端部（他方端部）
２１ 中央部 DESCRIPTION OF SYMBOLS 1 Upper duct hose 2 Lower duct hose 10 Pipe member 11 Pipe main body part 12 Outer surface side raised part (raised part)
13 Settling part on outer surface side (settling part)
14. Inner surface protruding part (protruding part)
15 Inner settling part (settling part)
16 Connection 17 External rib (rib)
18 Inner surface rib (rib)
19 Upper end (one end)
20 Lower end (other end)
21 Central part

Claims (6)

***部と沈降部とが交互に連接された蛇腹形状の管本体部が備えられた管部材において、
隣接する前記***部同士を連接するリブを有し、前記***部を介して隣接した複数の前記リブからなる一群が、前記管本体部の軸方向に向けられると共に、個々の前記リブが、前記軸方向に対して傾斜し、
前記リブが、隣接する前記***部同士の一方側に連接された一方端部と、隣接する前記***部同士の他方側に連接された他方端部と、前記一方端部と前記他方端部とが前記沈降部で連接された中央部と、から構成され、
前記リブにおいて、前記管本体部材の周方向における一方の側面が、前記一方端部から前記中央部に至った短片と、前記中央部から前記他方端部に至った長片とから構成され、かつ、前記リブにおいて、前記管本体部材の周方向における他方の側面が、前記一方端部から前記中央部に至った長片と、前記中央部から前記他方端部に至った短片とから構成されたことで、前記中央部が、前記一方端部および前記他方端部よりも薄く形成された、
ことを特徴とする管部材。 In a pipe member provided with a bellows-shaped pipe main body in which a raised portion and a settling portion are alternately connected,
It has a rib connecting the adjacent raised portions, and a group of the plurality of ribs adjacent via the raised portion is directed in the axial direction of the tube main body, and the individual ribs are Inclined with respect to the axial direction ,
The rib has one end connected to one side of the adjacent raised portions, the other end connected to the other side of the adjacent raised portions, the one end and the other end. And a central portion connected by the settling portion,
In the rib, one side surface in the circumferential direction of the pipe main body member includes a short piece extending from the one end to the center, and a long piece extending from the center to the other end, and In the rib, the other side surface in the circumferential direction of the pipe main body member was constituted by a long piece extending from the one end to the center and a short piece extending from the center to the other end. By doing so, the central portion is formed thinner than the one end and the other end ,
A pipe member characterized by the above-mentioned. 前記管本体部の外面において、前記リブが、前記管本体部の周方向に間隔を空けて複数形成された、
ことを特徴とする請求項１に記載された管部材。 On the outer surface of the tube body, a plurality of the ribs were formed at intervals in the circumferential direction of the tube body,
The pipe member according to claim 1, wherein: 前記管本体部の内面において、前記リブが、前記管本体部の周方向に間隔を空けて複数形成された、
ことを特徴とする請求項１または請求項２に記載された管部材。 On the inner surface of the pipe body, a plurality of the ribs were formed at intervals in the circumferential direction of the pipe body,
The pipe member according to claim 1 or 2, wherein: 前記管本体部の外面における外面側***部同士の間に形成された前記リブと、前記管本体部の内面における内面側***部同士の間に形成された前記リブとが、前記管本体部の周方向においてずれて配置された、
ことを特徴とする請求項１から請求項３のいずれか１項に記載された管部材。 The rib formed between the outer surface side ridges on the outer surface of the tube body, and the rib formed between the inner surface ridges on the inner surface of the tube body, the rib of the tube body Arranged in the circumferential direction,
The pipe member according to any one of claims 1 to 3, characterized in that: 前記リブが、前記***部の高さよりも低く形成された、
ことを特徴とする請求項１から請求項４のいずれか１項に記載された管部材。 The rib is formed lower than the height of the ridge,
The pipe member according to any one of claims 1 to 4, characterized in that: ***部と沈降部とが交互に連接された蛇腹形状の管本体部が備えられた管部材において、
隣接する前記***部同士を連接するリブを有し、このリブが、隣接する前記***部同士の一方側に連接された一方端部と、隣接する前記***部同士の他方側に連接された他方端部と、前記一方端部と前記他方端部とが前記沈降部で連接された中央部と、から構成され、
前記リブにおいて、前記管本体部材の周方向における一方の側面が、前記一方端部から前記中央部に至った短片と、前記中央部から前記他方端部に至った長片とから構成され、かつ、前記リブにおいて、前記管本体部材の周方向における他方の側面が、前記一方端部から前記中央部に至った長片と、前記中央部から前記他方端部に至った短片とから構成されたことで、前記中央部が、前記一方端部および前記他方端部よりも薄く形成され、
前記***部を介して隣接した複数の前記リブからなる一群が、前記管本体部の軸方向に向けられると共に、個々の前記リブの前記一方端部と前記他方端部とが前記管本体部の周方向においてずれている、
ことを特徴とする管部材。 In a pipe member provided with a bellows-shaped pipe main body in which a raised portion and a settling portion are alternately connected,
A rib connected to the adjacent protruding portions, and one end connected to one side of the adjacent protruding portions and the other connected to the other side of the adjacent protruding portions; An end portion, and a central portion in which the one end portion and the other end portion are connected by the settling portion,
In the rib, one side surface in the circumferential direction of the pipe main body member includes a short piece extending from the one end to the center, and a long piece extending from the center to the other end, and In the rib, the other side surface in the circumferential direction of the pipe main body member was constituted by a long piece extending from the one end to the center and a short piece extending from the center to the other end. By this, the central portion is formed thinner than the one end and the other end ,
A group of the plurality of ribs adjacent to each other via the raised portion is directed in the axial direction of the tube main body, and the one end and the other end of each rib are formed of the tube main body. Offset in the circumferential direction,
Tubular member you wherein a.
JP2015249538A 2015-12-22 2015-12-22 Pipe member Expired - Fee Related JP6636316B2 (en)

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JPS57190571A (en) * 1981-05-20 1982-11-24 Terumo Corp Bellow pipe with reduced extensibility for breathing apparatus
JPS59150931U (en) * 1983-03-29 1984-10-09 橋本フオ−ミング工業株式会社 Flexible tube for internal combustion engine exhaust system
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