JP2023013050A - Mounting structure of mounted portion, and mounting structure of flange head of end portion of hose piping - Google Patents

Mounting structure of mounted portion, and mounting structure of flange head of end portion of hose piping Download PDF

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JP2023013050A
JP2023013050A JP2021116947A JP2021116947A JP2023013050A JP 2023013050 A JP2023013050 A JP 2023013050A JP 2021116947 A JP2021116947 A JP 2021116947A JP 2021116947 A JP2021116947 A JP 2021116947A JP 2023013050 A JP2023013050 A JP 2023013050A
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insertion hole
bolt insertion
mounting
bolt
contact
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耕一 渡辺
Koichi Watanabe
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
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Priority to JP2021116947A priority Critical patent/JP2023013050A/en
Priority to CN202210644664.6A priority patent/CN115614568A/en
Publication of JP2023013050A publication Critical patent/JP2023013050A/en
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    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

To achieve a long life by suppressing breakage and deformation by reducing deflection of a mounting member, and improving durability of the mounting member.SOLUTION: In a mounting structure of a flange head of an end portion of hose piping for mounting an annular plate portion 24 in a manner of being pressure-contact with a mounting surface 1202 by engaging a bolt 44 inserted to a bolt insertion hole 36, with a female screw 1204 of the mounting surface 1202, an axial center T of the bolt insertion hole 36 and the female screw 1204 is inclined to a normal line L of the mounting surface 1202 so that at least a part of a head portion 4402 of the bolt 44 inserted to the bolt insertion hole 36 and engaged with the female screw 1204 is positioned at a projecting portion 3404 side with respect to a boundary B of a main body portion 3402 and the projecting portion 3404.SELECTED DRAWING: Figure 2

Description

本発明は、被取り付け部の取り付け構造、およびホース配管の端部のフランジヘッドの取り付け構造に関する。 TECHNICAL FIELD The present invention relates to a mounting structure for a part to be mounted and a mounting structure for a flange head at the end of a hose pipe.

例えば、建設機械では、油圧ポンプに接続されたコントロールバルブが設けられ、このコントロールバルブからホース配管を介して走行用油圧モータや旋回用油圧モータ、各種の作業用油圧アクチュエータに油圧が供給されている（特許文献１、特許文献２）。
ホース配管の端部には、第１流路が貫通されホースの端部が結合されるフランジヘッドが設けられている。このフランジヘッドの先端には環板部が設けられ、環板部には第１流路の第１開口が位置している。
また、コントロールバルブには、ホース配管の端部を取り付けるための取り付け面が設けられ、取り付け面には内部の流路に接続する複数の第２流路の第２開口が位置し、第２開口の周囲には雌ねじが形成されている。
そして、ホース配管の端部を取り付け面に取り付けるに際してクランプ金具が用いられている。
クランプ金具は、それぞれボルト挿通孔が貫通形成された一対のクランプから構成されており、この一対のクランプをフランジヘッドの両側に当接させて位置決めを行いながら配置し、ボルト挿通孔に挿通されたボルトを取り付け面の雌ねじに螺合させることでボルトの締付力によりフランジヘッドを取り付け面に圧接して取り付け、第１流路と第２流路を連通させるようにしている。 For example, in construction machinery, a control valve connected to a hydraulic pump is provided, and hydraulic pressure is supplied from this control valve to a traveling hydraulic motor, a turning hydraulic motor, and various working hydraulic actuators through hose piping. (Patent Document 1, Patent Document 2).
The end of the hose pipe is provided with a flange head through which the first flow path passes and to which the end of the hose is connected. A ring plate portion is provided at the tip of the flange head, and the first opening of the first flow path is positioned on the ring plate portion.
In addition, the control valve is provided with an attachment surface for attaching an end portion of the hose pipe, and the attachment surface is provided with second openings of a plurality of second flow paths connected to the internal flow path. A female thread is formed around the periphery of the .
A clamp is used to attach the end of the hose to the mounting surface.
The clamp metal fitting is composed of a pair of clamps each having a bolt insertion hole formed therethrough. The pair of clamps are positioned while being brought into contact with both sides of the flange head, and are inserted into the bolt insertion holes. By screwing the bolt into the female thread of the mounting surface, the tightening force of the bolt presses and mounts the flange head to the mounting surface, thereby connecting the first flow path and the second flow path.

特開２０１５－２１５００６号公報Japanese Unexamined Patent Application Publication No. 2015-215006 特開２００２－１８８１７５号公報Japanese Patent Application Laid-Open No. 2002-188175

上述した従来のクランプ金具を構成する一対のクランプはそれぞれ、ボルト挿通孔が設けられた本体部と、本体部から突出して設けられた突出部とを備えて構成されており、ホース配管の端部を取り付け面に取り付ける場合、本体部を環板部の外周面に当接させ、突出部を環板部の上面に当接させた状態で、本体部のボルト挿通孔に挿通され雌ねじに螺合されるボルトを取り付け面に対して垂直に取り付けている。
そして、本体部のボルト挿通孔に挿通されたボルトを締め付けると、ボルトの頭部がクランプの本体部を押し付けることで、突出部が取り付け面に対して垂直方向に環板部を押し付けている。
そのため、突出部は片持ち梁のような状態となり、本体部との境目の箇所である突出部の基部に応力が集中し、突出部に破損や変形が生じ易く、クランプの耐久性を高める上で不利があった。
本発明は、上記事情に鑑みてなされたものであり、ボルトの頭部の少なくとも一部を本体部と突出部との境目より突出部側に位置させることで、本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、取り付け部材の耐久性を向上させ長寿命化を図る被取り付け部の取り付け構造を提供することを目的とする。
また、本発明は、ボルトの頭部の少なくとも一部が本体部と突出部との境目より突出部側に位置させることで本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、一対のクランプの耐久性を向上させ長寿命化を図るホース配管の端部のフランジヘッドの取り付け構造を提供することを目的とする。 Each of the pair of clamps constituting the above-described conventional clamp fitting includes a main body portion provided with a bolt insertion hole and a protruding portion provided protruding from the main body portion. When attaching to the mounting surface, the main body is in contact with the outer peripheral surface of the ring plate and the projecting portion is in contact with the upper surface of the ring plate. The bolts to be installed are installed perpendicular to the mounting surface.
When the bolt inserted through the bolt insertion hole of the main body is tightened, the head of the bolt presses the main body of the clamp, so that the projecting portion presses the ring plate in the vertical direction against the mounting surface.
As a result, the protruding part becomes like a cantilever beam, and stress is concentrated on the base of the protruding part, which is the boundary between the main part and the main part, and the protruding part is easily damaged or deformed, which increases the durability of the clamp. was at a disadvantage.
The present invention has been made in view of the above circumstances. An object of the present invention is to provide a mounting structure for a mounted part that alleviates stress concentration on a protruding part, suppresses damage and deformation occurring in a protruding part, improves the durability of the mounting member, and extends the life of the mounting member.
Further, according to the present invention, at least a part of the head of the bolt is positioned closer to the projecting portion than the boundary between the main body and the projecting portion, thereby relieving stress concentration on the boundary between the main body and the projecting portion. It is an object of the present invention to provide a mounting structure for a flange head at the end of a hose pipe that suppresses breakage and deformation that occur in a pair of clamps, improves the durability of a pair of clamps, and extends the service life.

上述した目的を達成するため本発明の一実施形態は、ボルト挿通孔が貫通形成され被取り付け部の外周面に当接可能な第１当接面を有する本体部と、前記第１当接面の上部の前記本体部の箇所から突出して設けられ前記被取り付け部の上面に当接可能な第２当接面を有する突出部とを備える取り付け部材が設けられ、前記第１当接面を前記被取り付け部の外周面に当接し、前記第２当接面を前記被取り付け部の上面に当接した状態で、前記ボルト挿通孔に挿通したボルトを取り付け面の雌ねじに螺合させることで前記被取り付け部を前記取り付け面に圧接して取り付ける取り付け構造であって、前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトの頭部の少なくとも一部が前記本体部と前記突出部との境目より前記突出部側に位置するように前記取り付け面の法線に対して傾斜していることを特徴とする。
また、本発明の一実施形態は、前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトがその下部が上部よりも前記被取り付け部から離れる方向に変位するように傾斜していることを特徴とする。
また、本発明の一実施形態は、前記取り付け部材の上面で前記ボルト挿通孔の周囲の箇所に、前記ボルト挿通孔の軸心と直交する平面上を延在し前記ボルトの頭部下面の当接を可能とした座面が設けられていることを特徴とする。
また、本発明の一実施形態は、ホース配管の端部のフランジヘッドを構成する環板部の両側に配置され、それぞれボルト挿通孔が貫通形成された一対のクランプを備え、前記各クランプは、前記環板部の外周面に沿って延在し、その延在方向の両端に前記ボルト挿通孔が設けられ前記環板部の外周面に当接可能な第１当接面を有する本体部と、前記第１当接面の上部の前記本体部の箇所から突出して設けられ前記環板部の上面に当接可能な第２当接面を有する突出部とを備え、前記第１当接面を前記環板部の外周面に当接し、前記第２当接面を前記環板部の上面に当接した状態で、前記ボルト挿通孔に挿通されたボルトを取り付け面の雌ねじに螺合させることで前記環板部を前記取り付け面に圧接して取り付けるホース配管の端部のフランジヘッドの取り付け構造であって、前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトの頭部の少なくとも一部が前記本体部と前記突出部との境目より前記突出部側に位置するように前記取り付け面の法線に対して傾斜していることを特徴とする。
また、本発明の一実施形態は、前記フランジヘッドは、前記環板部から突設され前記環板部より径の小さい第１小径部を備え、前記突出部は、前記第１小径部の外周面に当接可能な第３当接面を有していることを特徴とする。
また、本発明の一実施形態は、前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトがその下部が上部よりも前記フランジヘッドから離れる方向に変位するように傾斜していることを特徴とする。
また、本発明の一実施形態は、前記クランプの上面で前記ボルト挿通孔の周囲の箇所に、前記ボルト挿通孔の軸心と直交する平面上を延在し前記ボルトの頭部下面の当接を可能とした座面が設けられていることを特徴とする。 In order to achieve the above object, one embodiment of the present invention comprises: a body portion having a first contact surface through which a bolt insertion hole is formed and capable of coming into contact with an outer peripheral surface of a mounting portion; and the first contact surface. an attachment member having a second contact surface that protrudes from the upper part of the main body and is capable of coming into contact with the upper surface of the attached portion; The bolt inserted through the bolt insertion hole is screwed into the female thread of the mounting surface while the second contact surface is in contact with the upper surface of the mounting portion. A mounting structure for mounting a part to be mounted in pressure contact with the mounting surface, wherein the axial center of the bolt insertion hole and the female screw is the head portion of the bolt that is inserted through the bolt insertion hole and screwed into the female screw. It is characterized in that at least a part thereof is inclined with respect to a normal line of the mounting surface so as to be located closer to the projecting portion than a boundary between the main body portion and the projecting portion.
Further, in one embodiment of the present invention, the axial center of the bolt insertion hole and the female thread is such that the bolt inserted through the bolt insertion hole and screwed into the female thread has a lower portion that is farther from the mounting portion than an upper portion. It is characterized by being inclined so as to be displaced away.
Further, in one embodiment of the present invention, on the upper surface of the mounting member, a portion around the bolt insertion hole is provided, extending on a plane perpendicular to the axial center of the bolt insertion hole, and contacting the lower surface of the head of the bolt. It is characterized in that a seat surface that allows contact is provided.
Further, one embodiment of the present invention is provided with a pair of clamps arranged on both sides of a ring plate portion constituting a flange head at the end of a hose pipe, each having a bolt insertion hole penetrating therethrough, each clamp comprising: a main body portion that extends along the outer peripheral surface of the ring plate portion, has the bolt insertion holes provided at both ends in the extending direction thereof, and has a first contact surface capable of coming into contact with the outer peripheral surface of the ring plate portion; and a protruding portion having a second contact surface that protrudes from a portion of the body portion above the first contact surface and is capable of coming into contact with the upper surface of the ring plate portion, wherein the first contact surface is in contact with the outer peripheral surface of the ring plate portion, and the second contact surface is in contact with the upper surface of the ring plate portion, and the bolt inserted through the bolt insertion hole is screwed into the female thread of the mounting surface. Thus, in the mounting structure of the flange head of the end portion of the hose pipe that is mounted by pressing the ring plate portion against the mounting surface, the bolt insertion hole and the axial center of the female screw are inserted into the bolt insertion hole and the At least part of the head of the bolt screwed into the female screw is inclined with respect to the normal line of the mounting surface so as to be located closer to the projecting portion than the boundary between the body portion and the projecting portion. characterized by
In one embodiment of the present invention, the flange head includes a first small diameter portion projecting from the ring plate portion and having a diameter smaller than that of the ring plate portion, and the projecting portion is an outer circumference of the first small diameter portion. It is characterized by having a third contact surface capable of coming into contact with the surface.
Further, in one embodiment of the present invention, the axial center of the bolt insertion hole and the female thread is such that the bolt inserted through the bolt insertion hole and screwed into the female thread has a lower portion separated from the flange head than an upper portion. It is characterized by being inclined so as to be displaced in a direction.
Further, in one embodiment of the present invention, a clamp extending on a plane perpendicular to the axis of the bolt insertion hole is provided on the upper surface of the clamp around the bolt insertion hole and contacts the lower surface of the head of the bolt. It is characterized by having a seat surface that enables

本発明の一実施形態によれば、ボルト挿通孔に挿通したボルトを取り付け面の雌ねじに螺合させることで被取り付け部を取り付け面に圧接して取り付ける取り付け構造において、ボルトの頭部の少なくとも一部が本体部と突出部との境目より突出部側に位置しているため、境目に生じる剪断力を、境目より突出部側に位置しているボルトの頭部の箇所で受けることができ、本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、取り付け部材の耐久性を向上させ長寿命化を図る上で有利となる。
また、ボルト挿通孔および雌ねじの軸心を、ボルト挿通孔に挿通され雌ねじに螺合されるボルトがその下部が上部よりも被取り付け部から離れる方向に変位するように傾斜している構成にすると、ボルトの頭部の一部を本体部と突出部との境目より突出部側に確実に位置させる上で有利となり、本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、取り付け部材の耐久性を向上させ長寿命化を図る上で有利となる。
また、取り付け部材の上面でボルト挿通孔の周囲の箇所に、ボルト挿通孔の軸心と直交する平面上を延在しボルトの頭部下面の当接を可能とした座面を設けた構成とすると、ボルト挿通孔および雌ねじが設けられた方向に向けて確実にボルトを取り付ける上で有利となり、第１当接面を被取り付け部の外周面に確実に当接し、第２当接面を被取り付け部の上面に確実に当接させる上で有利となる。
また、本発明の一実施形態によれば、ボルト挿通孔に挿通されたボルトを取り付け面の雌ねじに螺合させることで環板部を取り付け面に圧接して取り付けるホース配管の端部のフランジヘッドの取り付け構造において、ボルトの頭部の少なくとも一部が本体部と突出部との境目より突出部側に位置しているため、境目に生じる剪断力を、境目より突出部側に位置しているボルトの頭部の箇所で受けることができ、本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、一対のクランプＡの耐久性を向上させ長寿命化を図る上で有利となる。
また、フランジヘッドが環板部から突設され環板部より径の小さい第１小径部を備え、突出部が第１小径部の外周面に当接可能な第３当接面を有する構成とすると、環板部の両側に配置した一対のクランプの位置決めを行う上で有利となる。
また、ボルト挿通孔および雌ねじの軸心を、ボルト挿通孔に挿通され雌ねじに螺合されるボルトがその下部が上部よりもフランジヘッドから離れる方向に変位するように傾斜している構成にすると、ボルトの頭部の一部を本体部と突出部との境目より突出部側に確実に位置させる上で有利となり、本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、一対のクランプの耐久性を向上させ長寿命化を図る上で有利となる。
また、クランプの上面でボルト挿通孔の周囲の箇所に、ボルト挿通孔の軸心と直交する平面上を延在しボルトの頭部下面の当接を可能とした座面を設けた構成とすると、ボルト挿通孔および雌ねじが設けられた方向に向けて確実にボルトを取り付ける上で有利となり、第１当接面を環板部の外周面に確実に当接し、第２当接面を環板部の上面に確実に当接し、第３当接面を第１小径部の外周面に確実に当接させる上で有利となる。 According to one embodiment of the present invention, in the mounting structure for mounting the mounting portion by pressing the mounting portion against the mounting surface by screwing the bolt inserted through the bolt insertion hole into the female thread of the mounting surface, at least one of the head portions of the bolt Since the portion is located closer to the projecting portion than the boundary between the body portion and the projecting portion, the shearing force generated at the boundary can be received by the head of the bolt located closer to the projecting portion than the boundary. This is advantageous in reducing stress concentration at the boundary between the main body and the projecting portion, suppressing breakage and deformation occurring in the projecting portion, and improving the durability of the mounting member to extend its life.
Further, when the axial centers of the bolt insertion hole and the female thread are configured to be inclined so that the lower part of the bolt which is inserted through the bolt insertion hole and screwed into the female thread is displaced in the direction away from the mounting part more than the upper part. , which is advantageous in ensuring that a portion of the bolt head is positioned closer to the protrusion than the boundary between the main body and the protrusion, thereby relieving the stress concentration at the boundary between the main body and the protrusion, and This is advantageous in suppressing breakage and deformation, improving the durability of the mounting member, and extending the life of the mounting member.
In addition, a seating surface is provided on the upper surface of the mounting member around the bolt insertion hole, and extends on a plane perpendicular to the axis of the bolt insertion hole, and is capable of contacting the lower surface of the head of the bolt. This is advantageous for securely mounting the bolt in the direction in which the bolt insertion hole and the female thread are provided. This is advantageous in ensuring contact with the upper surface of the mounting portion.
Further, according to one embodiment of the present invention, the flange head at the end of the hose pipe is mounted by pressing the ring plate portion against the mounting surface by screwing the bolt inserted through the bolt insertion hole into the female thread of the mounting surface. In the mounting structure of (1), since at least part of the head of the bolt is positioned closer to the protrusion than the boundary between the main body and the protrusion, the shearing force generated at the boundary is positioned closer to the protrusion than the boundary. It can be received at the head of the bolt, relieves stress concentration at the boundary between the main body and the protruding part, suppresses damage and deformation occurring in the protruding part, improves the durability of the pair of clamps A, and increases the length. It is advantageous in terms of prolonging the service life.
In addition, the flange head has a first small diameter portion projecting from the ring plate portion and having a smaller diameter than the ring plate portion, and the protrusion has a third contact surface capable of coming into contact with the outer peripheral surface of the first small diameter portion. This is advantageous in positioning the pair of clamps arranged on both sides of the ring plate.
In addition, when the axial centers of the bolt insertion hole and the female thread are inclined so that the lower part of the bolt which is inserted into the bolt insertion hole and screwed into the female thread is displaced in the direction away from the flange head more than the upper part of the bolt, This is advantageous in ensuring that part of the bolt head is located closer to the protrusion than the boundary between the main body and the protrusion, and relieves the stress concentration at the boundary between the main body and the protrusion, which occurs in the protrusion. This is advantageous in suppressing breakage and deformation, improving the durability of the pair of clamps, and extending the life of the clamps.
In addition, if a bearing surface is provided on the upper surface of the clamp around the bolt insertion hole, the bearing surface extends on a plane orthogonal to the axis of the bolt insertion hole and allows the lower surface of the bolt head to come into contact. , it is advantageous for securely mounting the bolt in the direction in which the bolt insertion hole and the female thread are provided, the first contact surface surely contacts the outer peripheral surface of the ring plate portion, and the second contact surface contacts the ring plate portion. This is advantageous in reliably contacting the upper surface of the portion and reliably contacting the third contact surface with the outer peripheral surface of the first small diameter portion.

ホース配管の端部がクランプ金具によりコントロールバルブの取り付け面に取り付けられた状態の斜視図である。FIG. 4 is a perspective view of a state in which the end of the hose pipe is attached to the mounting surface of the control valve with a clamp fitting; フランジヘッドの軸心と２本のボルトの軸心とを結んだ図１のＡ―Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA in FIG. 1 connecting the axis of the flange head and the axes of the two bolts; コントロールバルブの取り付け面にボルト、クランプ金具、Ｏリングを介してフランジヘッドを取り付ける状態を説明する斜視図である。FIG. 4 is a perspective view illustrating a state in which the flange head is attached to the mounting surface of the control valve via bolts, clamp fittings, and O-rings; コントロールバルブの取り付け面にボルト、クランプ金具、Ｏリングを介してフランジヘッドを取り付ける状態を説明する側面図である。FIG. 4 is a side view for explaining how the flange head is attached to the mounting surface of the control valve via bolts, clamps, and O-rings; クランプの説明図で、（Ａ）は斜視図、（Ｂ）は平面図、（Ｃ）は背面図、（Ｄ）は側面図、（Ｅ）は底面図、（Ｆ）は（Ｂ）のＦ―Ｆ線断面図ある。It is an explanatory view of the clamp, (A) is a perspective view, (B) is a plan view, (C) is a rear view, (D) is a side view, (E) is a bottom view, (F) is F of (B) ―There is a cross-sectional view along the F line. ボルトの頭部がクランプを押圧する位置と突出部が環板部を押圧する位置との距離を説明する図である。It is a figure explaining the distance of the position where the head of a bolt presses a clamp, and the position where a protrusion presses a ring plate part. クランプの説明図で、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は（Ａ）のＣ－Ｃ線断面図である。It is explanatory drawing of a clamp, (A) is a top view, (B) is a bottom view, (C) is CC line sectional drawing of (A). クランプが取り付け面に取り付けられた状態を示す平面図である。FIG. 4 is a plan view showing a state in which the clamp is attached to the attachment surface;

（第１の実施の形態）
以下、本発明の実施の形態について図面を参照して説明する。
図１、図２において、符号１０は、建設機械に搭載され油圧ポンプに接続されたコントロールバルブを示し、符号１２は、コントロールバルブ１０に設けられた複数の取り付け座のうちの１つの取り付け座を示している。
また、符号１６は、ホース１４の端部に結合されるフランジヘッドを示し、フランジヘッド１６を含んでホース配管の端部が構成されている。
本実施の形態のクランプ金具３２によりフランジヘッド１６は、取り付け座１２の取り付け面１２０２に取り付けられる。 (First embodiment)
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2, reference numeral 10 denotes a control valve mounted on a construction machine and connected to a hydraulic pump, and reference numeral 12 denotes one of a plurality of mounting seats provided on the control valve 10. showing.
Reference numeral 16 denotes a flange head coupled to the end of the hose 14, and the end of the hose piping is configured including the flange head 16. As shown in FIG.
The flange head 16 is attached to the mounting surface 1202 of the mounting seat 12 by the clamp fitting 32 of this embodiment.

まず、被取り付け部としてのフランジヘッド１６から説明する。
図２に示すように、フランジヘッド１６には、ホース１４の内部に連通する第１流路１８が貫通形成されている。
図４に示すように、フランジヘッド１６の外周部の長手方向の一部は、ホース１４の端部が被せられる不図示のニップル部と、ニップル部の半径方向外側に設けられ半径方向内側に加締められることでホース１４の端部をニップル部に固定するソケット２０とを有するホース結合部２２として形成され、フランジヘッド１６の長手方向の残りの部分の先端に環板部２４が形成されている。
また、フランジヘッド１６は、環板部２４から突設され環板部２４より径の小さい第１小径部２６を備え、さらに、第１小径部２６から突設され第１小径部２６より径の小さい第２小径部２８を備えている。
ホース結合部２２と環板部２４とは、第１小径部２６と第２小径部２８を介して連結されている。
環板部２４と第１小径部２６とは共に外周が円形の輪郭に形成されているが、環板部２４と第１小径部２６の外周の輪郭は、多角形などの輪郭で形成されていてもよく円形の輪郭に限定されない。 First, the flange head 16 as an attached portion will be described.
As shown in FIG. 2 , the flange head 16 is formed with a first flow path 18 that communicates with the inside of the hose 14 .
As shown in FIG. 4, a portion of the outer peripheral portion of the flange head 16 in the longitudinal direction includes a nipple portion (not shown) on which the end portion of the hose 14 is covered, and a nipple portion provided radially outwardly of the nipple portion and pressurized radially inwardly. The flange head 16 is formed as a hose coupling portion 22 with a socket 20 which, when tightened, secures the end of the hose 14 to the nipple portion, and a ring plate portion 24 is formed at the distal end of the longitudinal remainder of the flange head 16. .
The flange head 16 has a first small diameter portion 26 projecting from the ring plate portion 24 and having a diameter smaller than that of the ring plate portion 24 . A small second small diameter portion 28 is provided.
The hose coupling portion 22 and the annular plate portion 24 are connected via a first small diameter portion 26 and a second small diameter portion 28 .
Both the ring plate portion 24 and the first small diameter portion 26 have circular outer peripheries. May not be limited to circular contours.

環板部２４は、ホース１４の端部のフランジヘッド１６を構成し、取り付け面１２０２に載置されるものであって、下面２４０２と、上面２４０４と、外周面２４０６とを有している。
下面２４０２は、環板部２４の厚さ方向の一方の面をなし、平坦面で形成され、下面２４０２の中心に第１流路１８の第１開口１８Ａ（図２参照）が位置している。
図２に示すように、下面２４０２には、第１開口１８Ａを中心として環状に延在する凹溝２４０８が設けられ、凹溝２４０８にはＯリング２４１０が装着されている。
上面２４０４は、環板部２４の厚さ方向の他方の面をなし、環状の平坦面で形成され、上面２４０４の内周部から第１小径部２６が突設している。
外周面２４０６は、下面２４０２の外周と上面２４０４の外周を接続する円筒面で形成されている。 The ring plate portion 24 constitutes the flange head 16 at the end of the hose 14 and rests on the mounting surface 1202 and has a lower surface 2402 , an upper surface 2404 and an outer peripheral surface 2406 .
The lower surface 2402 forms one surface in the thickness direction of the annular plate portion 24 and is formed as a flat surface. .
As shown in FIG. 2, the lower surface 2402 is provided with a groove 2408 extending annularly around the first opening 18A, and an O-ring 2410 is attached to the groove 2408. As shown in FIG.
The upper surface 2404 forms the other surface in the thickness direction of the ring plate portion 24 and is formed of an annular flat surface.
The outer peripheral surface 2406 is formed of a cylindrical surface that connects the outer periphery of the lower surface 2402 and the outer periphery of the upper surface 2404 .

図３に示すように、コントロールバルブ１０には複数の第２流路３０が設けられ、取り付け座１２の取り付け面１２０２は平坦な面で形成され、取り付け面１２０２には第２流路３０の第２開口３０Ａが位置している。
第２開口３０Ａの周囲の取り付け面１２０２の箇所に、雌ねじ１２０４が４つ設けられており、図２に示すように、４つの雌ねじ１２０４はそれぞれ所定方向に傾斜している。 As shown in FIG. 3, the control valve 10 is provided with a plurality of second flow paths 30, and the mounting surface 1202 of the mounting seat 12 is formed as a flat surface. 2 openings 30A are located.
Four internal threads 1204 are provided on the mounting surface 1202 around the second opening 30A, and as shown in FIG. 2, the four internal threads 1204 are each inclined in a predetermined direction.

図１、図３に示すように、取り付け部材としてのクランプ金具３２は、フランジヘッド１６を構成する環板部２４の両側に配置され、それぞれボルト挿通孔３６が貫通形成された一対のクランプ３４Ａにより構成されている。一対のクランプ３４Ａは、同じ形状のクランプ３４Ａを対象に配置している。
図３、図５に示すように、一対のクランプ３４Ａはそれぞれ、環板部２４の外周面２４０６に沿って延在する本体部３４０２と突出部３４０４とを備えている。
本体部３４０２は、その延在方向の両端にボルト挿通孔３６が設けられ、環板部２４の外周面２４０６に当接可能な第１当接面３４１２を有している。
突出部３４０４は、第１当接面２３１２の上部の本体部３４０２の箇所から突出して設けられ、環板部２４の上面２４０４に当接可能な第２当接面３４１４と、第１小径部２６の外周面２６０２に当接可能な第３当接面３４１６とを有している。 As shown in FIGS. 1 and 3, the clamp fittings 32 as mounting members are arranged on both sides of the ring plate portion 24 that constitutes the flange head 16, and are clamped by a pair of clamps 34A each having a bolt insertion hole 36 formed therethrough. It is configured. A pair of clamps 34A are arranged with clamps 34A having the same shape as targets.
As shown in FIGS. 3 and 5, each of the pair of clamps 34A includes a main body portion 3402 and a projecting portion 3404 extending along the outer peripheral surface 2406 of the ring plate portion 24. As shown in FIGS.
The body portion 3402 has bolt insertion holes 36 at both ends in the extending direction, and has a first contact surface 3412 that can contact the outer peripheral surface 2406 of the annular plate portion 24 .
The protruding portion 3404 is provided so as to protrude from the portion of the main body portion 3402 above the first contact surface 2312, and is capable of contacting the upper surface 2404 of the ring plate portion 24, and the first small diameter portion 26. and a third contact surface 3416 that can contact the outer peripheral surface 2602 of the.

また、図５に示すように、クランプ３４Ａは、その延在方向と直交する方向の厚さを有して半円弧状に延在しており、厚さ方向の一方の面である下面３４１８は、単一の平坦面で形成されている。
そして、図５（Ｆ）に示すように、下面３４１８の内側の端部から鉛直方向上方に向けて第１当接面３４１２が延在し、第１当接面３４１２の上端から内側に向けて水平方向に第２当接面３４１４が延在し、第２当接面３４１４の端部から鉛直方向上方に向けて第３当接面３４１６が延在して設けられている。 In addition, as shown in FIG. 5, the clamp 34A has a thickness in a direction perpendicular to its extending direction and extends in a semicircular shape. , formed of a single flat surface.
5(F), the first contact surface 3412 extends vertically upward from the inner end of the lower surface 3418, and extends inward from the upper end of the first contact surface 3412. A second contact surface 3414 extends horizontally, and a third contact surface 3416 extends vertically upward from the end of the second contact surface 3414 .

また、クランプ３４Ａの厚さ方向の他方の面である上面３４２０は、その延在方向の中央部が単一の平坦面で形成され、延在方向の両端に座面３４２２が設けられている。
座面３４２２は、クランプ３４Ａの上面３４２０でボルト挿通孔３６の周囲の箇所に設けられ、ボルト挿通孔３６の軸心と直交する平面上を延在しボルト４４の頭部下面が当接可能となっている。 An upper surface 3420, which is the other surface in the thickness direction of the clamp 34A, has a single flat surface at the central portion in the extending direction, and bearing surfaces 3422 are provided at both ends in the extending direction.
The seat surface 3422 is provided around the bolt insertion hole 36 on the upper surface 3420 of the clamp 34A, extends on a plane perpendicular to the axis of the bolt insertion hole 36, and is capable of contacting the lower surface of the head of the bolt 44. It's becoming

図２、図４、図６に示すように、本体部３４０２に設けられたボルト挿通孔３６および取り付け面１２０２に設けられた雌ねじ１２０４の軸心Ｔは、ボルト挿通孔３６に挿通され雌ねじ１２０４に螺合されるボルト４４の頭部４４０２の少なくとも一部が本体部３４０２と突出部３４０４との境目Ｂより突出部３４０４側に位置するように取り付け面１２０２の法線Ｌに対して傾斜している。
詳細には、取り付け面１２０２に直交しボルト挿通孔３６および雌ねじ１２０４の軸心Ｔと通る仮想平面と直交する方向から見ると、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔと、取り付け面１２０２の何れの箇所における法線Ｌとは、角度θ傾斜している。
本実施の形態では、図６に示すように、同時に、ボルト挿通孔３６に挿通され雌ねじ１２０４に螺合されるボルト４４がその下部４４Ｂが上部４４Ａよりもフランジヘッド１６から離れる方向に変位するように傾斜している。
本実施の形態では、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔの延長線と、フランジヘッド１６の軸心とは交差しており、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔは、上方に向かうに連れてフランジヘッド１６の軸心Ｔに近づくように傾斜して形成されているため、ボルト４４は取り付けられることで下部４４Ｂがフランジヘッド１６の軸心から離れるように傾斜して配置される。
図２、図４、図６に示すように、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔが雌ねじ１２０４の開口の中心を通る取り付け面１２０２の法線Ｌに対して傾斜する角度θは、０度より大きく１７．９度以下に設定されている（０＜θ≦１７．９°）。ここで、クランプ３４ＡはＳＡＥ規格で寸法が定められており、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔが取り付け面１２０２の法線Ｌに対して傾斜する角度θを１７．９度より大きくしてしまうと、ボルト４４がクランプ３４Ａの本体部３４０２の外周面からはみ出してしまうため、本実施の形態では１７．９度以下に設定している。
座面３４２２は、ボルト挿通孔３６の軸心と直交する平面上を延在しているので、クランプ３４Ａの下面３４１８と上面３４２０に対して角度θ傾斜している。 As shown in FIGS. 2, 4, and 6, the axis T of the bolt insertion hole 36 provided in the body portion 3402 and the female thread 1204 provided in the mounting surface 1202 is inserted through the bolt insertion hole 36 and is connected to the female thread 1204. At least part of the head 4402 of the bolt 44 to be screwed is inclined with respect to the normal line L of the mounting surface 1202 so as to be located closer to the projecting portion 3404 than the boundary B between the main body portion 3402 and the projecting portion 3404. .
Specifically, when viewed from the direction perpendicular to the mounting surface 1202 and perpendicular to the imaginary plane passing through the bolt insertion hole 36 and the axis T of the female screw 1204, the axis T of the bolt insertion hole 36 and the female screw 1204 and the attachment surface 1202 The normal line L at any point is inclined at an angle θ.
In the present embodiment, as shown in FIG. 6, at the same time, the bolt 44 inserted through the bolt insertion hole 36 and screwed into the internal thread 1204 is arranged so that the lower portion 44B thereof is displaced in the direction away from the flange head 16 more than the upper portion 44A. inclined to
In the present embodiment, the extension of the axial center T of the bolt insertion hole 36 and the internal thread 1204 intersects the axial center of the flange head 16, and the axial center T of the bolt insertion hole 36 and the internal thread 1204 extends upward. Since the bolts 44 are formed to be inclined so as to approach the axial center T of the flange head 16 as they go, the bolts 44 are installed so that the lower portions 44B are inclined away from the axial center of the flange head 16. .
As shown in FIGS. 2, 4, and 6, the angle θ at which the axis T of the bolt insertion hole 36 and the internal thread 1204 is inclined with respect to the normal line L of the mounting surface 1202 passing through the center of the opening of the internal thread 1204 is 0. is set to 17.9 degrees or less (0<θ≦17.9 degrees). Here, the dimensions of the clamp 34A are defined by the SAE standard, and the angle θ at which the axial center T of the bolt insertion hole 36 and the internal thread 1204 inclines with respect to the normal line L of the mounting surface 1202 is made larger than 17.9 degrees. Otherwise, the bolt 44 protrudes from the outer peripheral surface of the body portion 3402 of the clamp 34A.
Since the seat surface 3422 extends on a plane perpendicular to the axis of the bolt insertion hole 36, it is inclined at an angle θ with respect to the lower surface 3418 and the upper surface 3420 of the clamp 34A.

図２、図３、図４に示すように、フランジヘッド１６をコントロールバルブ１０に取り付ける場合、第１流路１８の第１開口１８Ａと第２流路３０の第２開口３０Ａが向かい合うように、フランジヘッド１６の環板部２４の下面２４０２を、取り付け座１２の取り付け面１２０２に合わせ、環板部２４に沿わせて一対のクランプ３４Ａを配置する。
そして、図２に示すように、本体部３４０２の第１当接面３４１２を環板部２４の外周面２４０６に当接し、突出部３４０４の第２当接面３４１４を環板部２４の上面２４０４に当接し、突出部３４０４の第３当接面３４１６を第１小径部２６の外周面２６０２に当接させた状態で、本体部３４０２のボルト挿通孔３６にワッシャー４２を介し、ボルト挿通孔３６に挿通されたボルト４４を取り付け面１２０２の雌ねじ１２０４に螺合させて締結することで、フランジヘッド１６の環板部２４を取り付け面１２０２に圧接して取り付ける。 As shown in FIGS. 2, 3, and 4, when the flange head 16 is attached to the control valve 10, the first opening 18A of the first flow path 18 and the second opening 30A of the second flow path 30 face each other. The lower surface 2402 of the ring plate portion 24 of the flange head 16 is aligned with the mounting surface 1202 of the mounting seat 12 , and the pair of clamps 34A are arranged along the ring plate portion 24 .
Then, as shown in FIG. 2 , the first contact surface 3412 of the main body portion 3402 is brought into contact with the outer peripheral surface 2406 of the ring plate portion 24 , and the second contact surface 3414 of the projecting portion 3404 is brought into contact with the upper surface 2404 of the ring plate portion 24 . , and the third contact surface 3416 of the projecting portion 3404 is in contact with the outer peripheral surface 2602 of the first small diameter portion 26 . The annular plate portion 24 of the flange head 16 is pressed against and attached to the mounting surface 1202 by screwing the bolt 44 inserted through the mounting surface 1202 into the female thread 1204 of the mounting surface 1202 and fastening it.

このように、ボルト４４を締結することで第２当接面３４１４が環板部２４の上面２４０４を押し付け、これにより環板部２４の下面２４０２が取り付け座１２の取り付け面１２０２に圧接され、環板部２４の下面２４０２と取り付け面１２０２とがＯリング２４１０を介して液密に結合される。
同時に、環板部２４の両側から第１当接面３４１２が環板部２４の外周面２４０６を押し付け、第３当接面３４１６が第１小径部２６の外周面２６０２を押し付けるので、一対のクランプ３４Ａが位置決めされた状態で取り付け面１２０２に取り付けられる。
なお、第２当接面３４１４により環板部２４の上面２４０４を確実に押し付けることができるように、第２当接面３４１４を環板部２４の上面２４０４に当接した状態で、クランプ３４Ａの下面３４１８と取り付け面１２０２との間には隙間Ｓが確保されている。 By tightening the bolt 44 in this manner, the second contact surface 3414 presses the upper surface 2404 of the ring plate portion 24 , and thereby the lower surface 2402 of the ring plate portion 24 is pressed against the mounting surface 1202 of the mounting seat 12 . The lower surface 2402 of the plate portion 24 and the mounting surface 1202 are liquid-tightly coupled via an O-ring 2410 .
At the same time, the first contact surface 3412 presses the outer peripheral surface 2406 of the ring plate portion 24 from both sides of the ring plate portion 24, and the third contact surface 3416 presses the outer peripheral surface 2602 of the first small diameter portion 26, so that the pair of clamps 34A is attached to the mounting surface 1202 in position.
In order to ensure that the upper surface 2404 of the ring plate portion 24 is pressed by the second contact surface 3414, the clamp 34A is clamped while the second contact surface 3414 is in contact with the upper surface 2404 of the ring plate portion 24. A gap S is ensured between the lower surface 3418 and the mounting surface 1202 .

本実施の形態によれば、図６に示すようにボルト４４の頭部４４０２の一部が本体部３４０２と突出部３４０４との境目Ｂより突出部３４０４側に位置しているので、境目Ｂに生じる剪断力を、境目Ｂより突出部３４０４側に位置しているボルト４４の頭部４４０２の箇所で受けることができ、本体部３４０２と突出部３４０４との境目Ｂへの応力集中を緩和させ、突出部３４０４に生じる破損や変形を抑制し、一対のクランプ３４Ａの耐久性を向上させ長寿命化を図る上で有利となる。 According to the present embodiment, as shown in FIG. 6, a portion of the head 4402 of the bolt 44 is positioned closer to the projecting portion 3404 than the boundary B between the body portion 3402 and the projecting portion 3404. The generated shearing force can be received at the head 4402 of the bolt 44 located on the protruding portion 3404 side of the boundary B, and stress concentration on the boundary B between the main body portion 3402 and the protruding portion 3404 is relieved, This is advantageous in suppressing breakage and deformation occurring in the projecting portion 3404, improving the durability of the pair of clamps 34A, and extending the service life.

また、突出部３４０４が第１小径部２６の外周面２６０２に当接可能な第３当接面３４１６を有する構成としたため、環板部２４の両側に配置した一対のクランプ３４Ａの位置決めを行なう上で有利となる。
また、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔが、ボルト挿通孔３６に挿通され雌ねじ１２０４に螺合されるボルト４４がその下部４４Ｂが上部４４Ａよりもフランジヘッド１６から離れる方向に変位するように取り付け面１２０２の法線Ｌに対して傾斜しているため、ボルト４４の頭部４４０２の一部を本体部３４０２と突出部３４０４との境目Ｂより突出部３４０４側に確実に位置させる上で有利となり、本体部３４０２と突出部３４０４との境目Ｂへの応力集中を緩和させ、突出部３４０４に生じる破損や変形を抑制し、一対のクランプ３４Ａの耐久性を向上させ長寿命化を図る上で有利となる。
上述したように、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔが雌ねじ１２０４の開口の中心を通る取り付け面１２０２の法線Ｌに対して傾斜する角度θは、０度より大きく１７．９度以下に設定されているが、その範囲内において角度θを大きくすればするほど、ボルト４４の頭部４４０２の一部が境目Ｂより突出部３４０４側に位置させることができ、突出部３４０４に生じる破損や変形を抑制し、一対のクランプ３４Ａの耐久性を向上させ長寿命化を図る上でより有利となる。
また、クランプ３４Ａの上面３４２０でボルト挿通孔３６の周囲の箇所に、ボルト挿通孔３６の軸心と直交する平面上を延在しボルト４４の頭部下面の当接を可能とした座面３４２２を設けたため、ボルト挿通孔３６および雌ねじ１２０４が設けられた方向に向けて確実にボルト４４を取り付ける上で有利となり、第１当接面３４１２を環板部２４の外周面２４０６に確実に当接し、第２当接面３４１４を環板部２４の上面２４０４に確実に当接し、第３当接面３４１６を第１小径部２６の外周面２６０２に確実に当接させる上で有利となる。 Further, since the protruding portion 3404 is configured to have the third contact surface 3416 capable of contacting the outer peripheral surface 2602 of the first small diameter portion 26, the pair of clamps 34A arranged on both sides of the ring plate portion 24 can be positioned. is advantageous.
Further, the axial center T of the bolt insertion hole 36 and the female thread 1204 is arranged so that the lower portion 44B of the bolt 44 inserted through the bolt insertion hole 36 and screwed into the female thread 1204 is displaced in a direction away from the flange head 16 than the upper portion 44A. Since it is inclined with respect to the normal line L of the mounting surface 1202, a part of the head 4402 of the bolt 44 is reliably positioned closer to the projecting portion 3404 than the boundary B between the main body portion 3402 and the projecting portion 3404. This is advantageous in that stress concentration on the boundary B between the main body portion 3402 and the protruding portion 3404 is alleviated, damage and deformation that occur in the protruding portion 3404 are suppressed, and the durability of the pair of clamps 34A is improved to extend the service life. is advantageous.
As described above, the angle θ at which the axis T of the bolt insertion hole 36 and the female screw 1204 inclines with respect to the normal line L of the mounting surface 1202 passing through the center of the opening of the female screw 1204 is greater than 0 degrees and 17.9 degrees or less. However, the larger the angle θ within that range, the more the head portion 4402 of the bolt 44 can be positioned closer to the projecting portion 3404 than the boundary line B, and the more the projecting portion 3404 is damaged. This is more advantageous in suppressing deformation and improving the durability of the pair of clamps 34A to extend their service life.
A seat surface 3422 extending on a plane perpendicular to the axis of the bolt insertion hole 36 and capable of contacting the lower surface of the head of the bolt 44 is provided around the bolt insertion hole 36 on the upper surface 3420 of the clamp 34A. is provided, it is advantageous in securely mounting the bolt 44 in the direction in which the bolt insertion hole 36 and the female thread 1204 are provided, and the first contact surface 3412 is reliably brought into contact with the outer peripheral surface 2406 of the ring plate portion 24. , the second contact surface 3414 is brought into reliable contact with the upper surface 2404 of the ring plate portion 24, and the third contact surface 3416 is brought into contact with the outer peripheral surface 2602 of the first small diameter portion 26.

（第１の実施の形態の変形例）
第１の実施の形態のボルト挿通孔３６および雌ねじ１２０４の軸心Ｔの延長線と、フランジヘッド１６の軸心とは交差していたのに対して、本変形例では、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔの延長線は、フランジヘッド１６の軸心と交差していない点が異なっている。
なお、以下の実施の形態の説明では、第１の実施の形態と同様な個所、部材に同一の符号を付してその説明を省略し、第１の実施の形態と異なった個所について重点的に説明する。
本変形例では、図８に示すように、平面視した場合、本体部３４０２の長手方向の両端のボルト挿通孔３６および雌ねじ１２０４の軸心Ｔは同一直線上に位置しており、本変形例のクランプ３４Ｂのボルト挿通孔３６および雌ねじ１２０４の軸心Ｔは、本体部３４０２の両端に設けられたボルト挿通孔３６に挿通され雌ねじ１２０４に螺合される２本のボルト４４の頭部４４Ａどうしが近づき、下部４４Ｂどうしが離れるように、取り付け面１２０２の不図示の法線Ｌに対して傾斜している。
図７、図８に示すように、２本のボルト４４が、一対の本体部３４０２の長手方向の両端のボルト挿通孔３６に挿通され、取り付け面１２０２の雌ねじ１２０４に螺合することで、第１の実施の形態と同様に図６に示すように、第２当接面３４１４が環板部２４の上面２４０４を押し付け、同時に、環板部２４の両側から第１当接面３４１２が環板部２４の外周面２４０６を押し付け、第３当接面３４１６が第１小径部２６の外周面２６０２を押し付けるので、一対のクランプ３４Ａが位置決めされた状態で取り付け面１２０２に取り付けられる。
図７に示すように、クランプ３４Ｂは円弧状に延在し、ボルト４４は円弧状のクランプの両端に位置していることから、第１の実施の形態と同様に、ボルト４４の頭部４４０２の一部が本体部３４０２と突出部３４０４との境目Ｂより突出部３４０４側に位置する。
したがって、本変形例においても第１の実施の形態と同様に、ボルト挿通孔３６および雌ねじ１２０４の軸心Ｔは、ボルト４４の頭部４４０２の一部が本体部３４０２と突出部３４０４との境目Ｂより突出部３４０４側に位置するように取り付け面１２０２の法線Ｌに対して傾斜しており、第１の実施の形態と同様の効果を奏する。 (Modification of the first embodiment)
While the extension of the bolt insertion hole 36 and the axial center T of the internal thread 1204 in the first embodiment intersects the axial center of the flange head 16, in this modified example, the bolt insertion hole 36 and The difference is that the extension of the axis T of the internal thread 1204 does not intersect the axis of the flange head 16 .
In the following description of the embodiment, the same reference numerals are assigned to the same parts and members as in the first embodiment, and the description thereof will be omitted, and the parts different from the first embodiment will be emphasized. to explain.
In this modification, as shown in FIG. 8, when viewed from above, the bolt insertion holes 36 at both longitudinal ends of the body portion 3402 and the axes T of the internal threads 1204 are positioned on the same straight line. The bolt insertion holes 36 of the clamp 34B and the axial center T of the internal thread 1204 are inserted into the bolt insertion holes 36 provided at both ends of the body portion 3402 and are screwed into the internal threads 1204. are closer to each other and the lower portions 44B are away from each other.
As shown in FIGS. 7 and 8, two bolts 44 are inserted through the bolt insertion holes 36 at both longitudinal ends of the pair of main body portions 3402 and screwed into the female threads 1204 of the mounting surface 1202, thereby As in the first embodiment, as shown in FIG. 6, the second contact surface 3414 presses the upper surface 2404 of the ring plate portion 24, and at the same time, the first contact surface 3412 presses against the ring plate portion 24 from both sides. Since the outer peripheral surface 2406 of the portion 24 is pressed and the third contact surface 3416 presses the outer peripheral surface 2602 of the first small diameter portion 26, the pair of clamps 34A are attached to the mounting surface 1202 in a positioned state.
As shown in FIG. 7, the clamp 34B extends in an arc, and the bolts 44 are positioned at both ends of the arc-shaped clamp. is positioned closer to the projecting portion 3404 than the boundary B between the main body portion 3402 and the projecting portion 3404 .
Therefore, in this modification, as in the first embodiment, the axis T of the bolt insertion hole 36 and the internal thread 1204 is such that a portion of the head 4402 of the bolt 44 is at the boundary between the main body 3402 and the projecting portion 3404. It is inclined with respect to the normal line L of the mounting surface 1202 so as to be positioned closer to the projecting portion 3404 than B, and the same effects as in the first embodiment are exhibited.

なお、上述した実施の形態では、被取り付け部としてのホース配管の端部に設けられたフランジヘッド１６の環板部２４を、コントロールバルブ１０の取り付け面１２０２に取り付けた場合について説明したが、本発明は、取り付け面の法線に対してボルトが傾斜している点に特徴があり、本発明はホース配管の端部の取り付け構造に限定されず本発明の用途は任意であり、本発明は従来公知の様々な部分の取り付け構造に適用可能である。
すなわち、本発明は、取り付け部材によって、被取り付け部を取り付け面に取り付ける取り付け構造に適用可能である。
取り付け部材は、例えば、ボルト挿通孔が貫通形成され被取り付け部の外周面に当接可能な第１当接面を有する本体部と、第１当接面の上部の本体部の箇所から突出して設けられ被取り付け部の上面に当接可能な第２当接面を有する突出部とを備えて構成されている。
そして、第１当接面を被取り付け部の外周面に当接し、第２当接面を被取り付け部の上面に当接した状態で、ボルト挿通孔に挿通したボルトを取り付け面の雌ねじに螺合させることで被取り付け部を取り付け面に圧接して取り付ける。
このとき、ボルト挿通孔および雌ねじの軸心は、ボルト挿通孔に挿通され雌ねじに螺合されるボルトの頭部の少なくとも一部が本体部と突出部との境目より突出部側に位置するように取り付け面の法線に対して傾斜して設けられているため、境目に生じる剪断力を、境目より突出部側に位置しているボルトの頭部の箇所で受けることができ、本体部と突出部との境目への応力集中を緩和させ、突出部に生じる破損や変形を抑制し、取り付け部材の耐久性を向上させ長寿命化を図る上で有利となる。
この場合、第１の実施の形態のように、ボルト挿通孔および雌ねじの軸心は、ボルト挿通孔に挿通され雌ねじに螺合されるボルトがその下部が上部よりも被取り付け部から離れる方向に変位するように傾斜させてもよい。
また、第１の実施の形態のように、取り付け部材の上面でボルト挿通孔の周囲の箇所に、ボルト挿通孔の軸心と直交する平面上を延在しボルトの頭部下面の当接を可能とした座面を設けてもよい。 In the above-described embodiment, the case where the annular plate portion 24 of the flange head 16 provided at the end portion of the hose pipe as the attached portion was attached to the mounting surface 1202 of the control valve 10 was described. The invention is characterized in that the bolt is inclined with respect to the normal line of the mounting surface, the invention is not limited to the mounting structure of the end of the hose pipe, and the application of the invention is arbitrary. It can be applied to conventionally known mounting structures for various parts.
In other words, the present invention can be applied to a mounting structure that mounts the mounted portion to the mounting surface by means of the mounting member.
The mounting member includes, for example, a body portion having a first contact surface through which a bolt insertion hole is formed and capable of coming into contact with the outer peripheral surface of the mounting portion, and a portion of the body portion above the first contact surface. and a protruding portion having a second abutment surface that is provided and can abut on the upper surface of the attached portion.
Then, with the first contact surface in contact with the outer peripheral surface of the mounting portion and the second contact surface in contact with the upper surface of the mounting portion, the bolt inserted through the bolt insertion hole is screwed into the female thread of the mounting surface. By aligning them, the part to be attached is pressed against the attachment surface and attached.
At this time, the axial centers of the bolt insertion hole and the female thread are set so that at least a portion of the head of the bolt that is inserted through the bolt insertion hole and screwed into the female thread is located closer to the protrusion than the boundary between the main body and the protrusion. Since it is provided at an angle to the normal line of the mounting surface, the shear force generated at the boundary can be received at the bolt head located on the protruding side from the boundary, and the main body and It is advantageous in reducing the concentration of stress on the boundary with the projecting portion, suppressing breakage and deformation occurring in the projecting portion, and improving the durability of the mounting member to extend its life.
In this case, as in the first embodiment, the axes of the bolt insertion hole and the female thread are arranged such that the lower portion of the bolt, which is inserted into the bolt insertion hole and screwed into the female thread, is further away from the mounting portion than the upper portion. You may incline so that it may be displaced.
In addition, as in the first embodiment, the lower surface of the head portion of the bolt extending on the plane orthogonal to the axis of the bolt insertion hole is abutted on the upper surface of the mounting member around the bolt insertion hole. You may provide the seat surface which made it possible.

１０ コントロールバルブ
１２ 取り付け座
１２０２ 取り付け面
１２０４ 雌ねじ
１６ フランジヘッド
２４ 環板部
２４０２ 下面
２４０４ 上面
２４０６ 外周面
２６ 第１小径部
２６０２ 外周面
２８ 第２小径部
３２ クランプ金具
３４ 一対のクランプ
３４Ａ、３４Ｂ クランプ
３４０２ 本体部
３４０４ 突出部
３４１２ 第１当接面
３４１４ 第２当接面
３４１６ 第３当接面
３４１８ 下面
３４２０ 上面
３４２２ 座面
３６ ボルト挿通孔
４４ ボルト
４４０２ 頭部
４４Ａ 上部
４４Ｂ 下部 Reference Signs List 10 control valve 12 mounting seat 1202 mounting surface 1204 female screw 16 flange head 24 ring plate portion 2402 lower surface 2404 upper surface 2406 outer peripheral surface 26 first small diameter portion 2602 outer peripheral surface 28 second small diameter portion 32 clamp fitting 34 pair of clamps 34A, 34B clamp 3402 Body portion 3404 Protruding portion 3412 First contact surface 3414 Second contact surface 3416 Third contact surface 3418 Lower surface 3420 Upper surface 3422 Seat surface 36 Bolt insertion hole 44 Bolt 4402 Head 44A Upper portion 44B Lower portion

Claims (7)

ボルト挿通孔が貫通形成され被取り付け部の外周面に当接可能な第１当接面を有する本体部と、前記第１当接面の上部の前記本体部の箇所から突出して設けられ前記被取り付け部の上面に当接可能な第２当接面を有する突出部とを備える取り付け部材が設けられ、前記第１当接面を前記被取り付け部の外周面に当接し、前記第２当接面を前記被取り付け部の上面に当接した状態で、前記ボルト挿通孔に挿通したボルトを取り付け面の雌ねじに螺合させることで前記被取り付け部を前記取り付け面に圧接して取り付ける取り付け構造であって、
前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトの頭部の少なくとも一部が前記本体部と前記突出部との境目より前記突出部側に位置するように前記取り付け面の法線に対して傾斜している、
ことを特徴とする被取り付け部の取り付け構造。 a body portion having a first contact surface which is formed with a bolt insertion hole and can contact an outer peripheral surface of a mounting portion; and a projection having a second contact surface capable of coming into contact with the upper surface of the mounting portion. A mounting structure in which the mounting portion is pressed against the mounting surface by screwing a bolt inserted through the bolt insertion hole into a female thread of the mounting surface while the surface is in contact with the upper surface of the mounting portion. There is
The axial center of the bolt insertion hole and the female screw is such that at least a part of the head of the bolt that is inserted through the bolt insertion hole and screwed into the female screw is located above the boundary between the main body and the protrusion. inclined with respect to the normal of the mounting surface so that the
A mounting structure for a mounted part, characterized by: 前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトがその下部が上部よりも前記被取り付け部から離れる方向に変位するように傾斜している、
ことを特徴とする請求項１記載の被取り付け部の取り付け構造。 The axial centers of the bolt insertion hole and the female thread are inclined so that the lower portion of the bolt, which is inserted through the bolt insertion hole and screwed into the female thread, is displaced in a direction away from the mounting portion more than the upper portion thereof. there is
The attachment structure of the attached portion according to claim 1, characterized in that: 前記取り付け部材の上面で前記ボルト挿通孔の周囲の箇所に、前記ボルト挿通孔の軸心と直交する平面上を延在し前記ボルトの頭部下面の当接を可能とした座面が設けられている、
ことを特徴とする請求項１または２記載の被取り付け部の取り付け構造。 A seat surface extending on a plane orthogonal to the axis of the bolt insertion hole and capable of contacting with the lower surface of the head of the bolt is provided on the upper surface of the mounting member around the bolt insertion hole. ing,
3. The attachment structure of the attached portion according to claim 1 or 2, characterized in that: ホース配管の端部のフランジヘッドを構成する環板部の両側に配置され、それぞれボルト挿通孔が貫通形成された一対のクランプを備え、
前記各クランプは、前記環板部の外周面に沿って延在し、その延在方向の両端に前記ボルト挿通孔が設けられ前記環板部の外周面に当接可能な第１当接面を有する本体部と、前記第１当接面の上部の前記本体部の箇所から突出して設けられ前記環板部の上面に当接可能な第２当接面を有する突出部とを備え、
前記第１当接面を前記環板部の外周面に当接し、前記第２当接面を前記環板部の上面に当接した状態で、前記ボルト挿通孔に挿通されたボルトを取り付け面の雌ねじに螺合させることで前記環板部を前記取り付け面に圧接して取り付けるホース配管の端部のフランジヘッドの取り付け構造であって、
前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトの頭部の少なくとも一部が前記本体部と前記突出部との境目より前記突出部側に位置するように前記取り付け面の法線に対して傾斜している、
ことを特徴とするホース配管の端部のフランジヘッドの取り付け構造。 A pair of clamps arranged on both sides of the ring plate portion constituting the flange head at the end of the hose pipe, each having a bolt insertion hole formed therethrough,
Each of the clamps extends along the outer peripheral surface of the annular plate portion, and has the bolt insertion holes provided at both ends in the extending direction thereof, and is capable of coming into contact with the outer peripheral surface of the annular plate portion. and a protruding portion having a second contact surface that protrudes from a portion of the main body portion above the first contact surface and can contact the upper surface of the ring plate portion,
The first contact surface is in contact with the outer peripheral surface of the ring plate portion, and the second contact surface is in contact with the upper surface of the ring plate portion, and the bolt inserted through the bolt insertion hole is attached to the mounting surface. A mounting structure for a flange head at the end of a hose pipe that is mounted by pressing the ring plate portion against the mounting surface by screwing it into the female thread of
The axial center of the bolt insertion hole and the female screw is such that at least a part of the head of the bolt that is inserted through the bolt insertion hole and screwed into the female screw is located above the boundary between the main body and the protrusion. inclined with respect to the normal of the mounting surface so that the
A mounting structure for a flange head at the end of a hose pipe, characterized by: 前記フランジヘッドは、前記環板部から突設され前記環板部より径の小さい第１小径部を備え、
前記突出部は、前記第１小径部の外周面に当接可能な第３当接面を有している、
ことを特徴とするホース配管の端部のフランジヘッドの取り付け構造。 The flange head includes a first small-diameter portion projecting from the ring plate portion and having a diameter smaller than that of the ring plate portion,
The projecting portion has a third contact surface capable of contacting the outer peripheral surface of the first small diameter portion,
A mounting structure for a flange head at the end of a hose pipe, characterized by: 前記ボルト挿通孔および前記雌ねじの軸心は、前記ボルト挿通孔に挿通され前記雌ねじに螺合される前記ボルトがその下部が上部よりも前記フランジヘッドから離れる方向に変位するように傾斜している、
ことを特徴とする請求項４または５記載の被取り付け部の取り付け構造。 The axial centers of the bolt insertion hole and the female thread are inclined so that the lower portion of the bolt, which is inserted through the bolt insertion hole and screwed into the female thread, is displaced in a direction away from the flange head more than the upper portion thereof. ,
6. The attachment structure of the attached portion according to claim 4 or 5, characterized in that: 前記クランプの上面で前記ボルト挿通孔の周囲の箇所に、前記ボルト挿通孔の軸心と直交する平面上を延在し前記ボルトの頭部下面の当接を可能とした座面が設けられている、
ことを特徴とする請求項４～６のいずれか一項記載のホース配管の端部のフランジヘッドの取り付け構造。 A seat surface extending on a plane perpendicular to the axis of the bolt insertion hole and capable of contacting with the lower surface of the head of the bolt is provided on the upper surface of the clamp around the bolt insertion hole. there is
A mounting structure for a flange head at an end of a hose pipe according to any one of claims 4 to 6, characterized in that:
JP2021116947A 2021-07-15 2021-07-15 Mounting structure of mounted portion, and mounting structure of flange head of end portion of hose piping Pending JP2023013050A (en)

Priority Applications (2)

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JP2021116947A JP2023013050A (en) 2021-07-15 2021-07-15 Mounting structure of mounted portion, and mounting structure of flange head of end portion of hose piping
CN202210644664.6A CN115614568A (en) 2021-07-15 2022-06-08 Mounting structure of mounted part and mounting structure of flange head at end of hose pipe

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Application Number Priority Date Filing Date Title
JP2021116947A JP2023013050A (en) 2021-07-15 2021-07-15 Mounting structure of mounted portion, and mounting structure of flange head of end portion of hose piping

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JP2023013050A true JP2023013050A (en) 2023-01-26

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