JP5350045B2 - Attaching the cylindrical universal joint - Google Patents
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- JP5350045B2 JP5350045B2 JP2009087446A JP2009087446A JP5350045B2 JP 5350045 B2 JP5350045 B2 JP 5350045B2 JP 2009087446 A JP2009087446 A JP 2009087446A JP 2009087446 A JP2009087446 A JP 2009087446A JP 5350045 B2 JP5350045 B2 JP 5350045B2
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Abstract
Description
本発明は、略直管形態や曲管形態などの任意の配管方向に対して方向自在とする筒状型自在継手の取り付け方法に係り、特に、換気装置の接続排気口と建物の壁部または天井部に取り付けられる外部排気口との接続などに有効な筒状型自在継手の取り付け方法に関する。 The present invention relates to a mounting method for a cylindrical universal joint that can be freely oriented in an arbitrary piping direction such as a substantially straight pipe shape or a curved pipe shape, and in particular, a connection exhaust port of a ventilator and a wall of a building or The present invention relates to a method for attaching a cylindrical universal joint effective for connection to an external exhaust port attached to a ceiling.
室内換気用の換気装置は、建物の壁部に開口部を設けて、この開口部に直接取り付けられる壁直付けタイプと、天井や壁部の内側などに設置される設置タイプが知られている。近年では、設置タイプが主流になってきている。この設置タイプの換気装置では、一体もののエルボ管やジャバラ管などを用いて建物の壁部に取り付けられる外部排気口との接続が行われる。
つまり、設置タイプの換気装置側の接続排気口の開口方向によっては、外部排気口の壁部に対する取り付け位置との関係などから、接続排気口と外部排気口との接続方向に芯ズレが起き、一致しないことがある。この場合、エルボ管、ジャバラ管のいずれか、あるいはエルボ管とジャバラ管とを組み合わせて接続排気口と外部排気口とを接続することが行われている。
Ventilators for indoor ventilation are known to have an opening on the wall of the building, and a wall-mounted type that can be directly attached to the opening, or an installation type that is installed inside the ceiling or wall. . In recent years, installation types have become mainstream. In this installation type ventilator, connection to an external exhaust port attached to a wall of a building is performed using an integral elbow pipe or bellows pipe.
In other words, depending on the opening direction of the connection exhaust port on the installation type ventilator side, due to the relationship with the mounting position of the external exhaust port on the wall, misalignment occurs in the connection direction between the connection exhaust port and the external exhaust port, May not match. In this case, either the elbow pipe or the bellows pipe, or a combination of the elbow pipe and the bellows pipe is used to connect the connection exhaust port and the external exhaust port.
ところで、エルボ管は、内面に空気の流れを妨げる凸凹がないことで、室内換気用の配管継手として有効ではあるが、９０°などの固定された曲がり角度を有する配管継手であるために、接続方向の芯ズレ（芯ズレ角度）などによっては非常に困難な作業となるばかりか、エルボ管単体では対応しきれない場合がある。この場合は、方向自在なフレキシブル性を有するジャバラ管との組み合わせ、あるいはジャバラ管単体を用いて行うことが多い。
このように、ジャバラ管は、接続排気口と外部排気口との接続方向の芯ズレなどに対して調整自在でスムーズに対応させることができるなどから、このような接続においては有効な配管継手と言える。しかし、ジャバラ管は、管内面に細かな凸凹が存在しているために、通気抵抗が高くなるなどの室内空気の円滑な流通が望めない問題がある。
特に、調理中に発生する汚染空気を屋外に排気するレンジフードの外部配管用として、ジャバラ管を使用した場合などには、汚染空気中に含まれている油脂分が細かな凹凸の凸部への衝突が繰り返されることで、油脂分が管内に溜まり易くなり、火災保安上において好ましくないものである。
By the way, the elbow pipe is effective as a pipe joint for indoor ventilation because there is no unevenness on the inner surface that obstructs the flow of air, but because it is a pipe joint having a fixed bending angle such as 90 °, Depending on the misalignment of the direction (center misalignment angle) and the like, not only the work becomes very difficult, but the elbow pipe alone may not be able to cope with it. In this case, it is often performed by using a combination with a bellows tube having flexibility in a direction or a single bellows tube.
In this way, the bellows pipe can be adjusted smoothly and smoothly with respect to misalignment in the connection direction between the connection exhaust port and the external exhaust port. I can say that. However, the bellows pipe has a problem that a smooth circulation of room air cannot be expected, such as a high ventilation resistance, because fine irregularities exist on the inner surface of the pipe.
In particular, when bellows pipes are used for the external piping of range hoods that exhaust contaminated air generated during cooking to the outdoors, the fat and oil contained in the contaminated air is projected to uneven projections. Repeating this collision makes it easier for oil and fat to accumulate in the pipe, which is undesirable in terms of fire safety.
そこで、このような問題を解消するために、内周面にジャバラ管のような細かいピッチで管方向に存在する凸凹を有することなく、しかも、接続方向に対する芯ズレを調整自在とするフレキシブル性を有する通気用継手が提案されている（特許文献１を参照）。
この通気用継手は、接続管の管端部にバンド締めなどによって接続される接続口部とこの接続口部に連設させた半円状鍔を有する両側の端部材と、この両側の端部材の間において、両端部材の半円状鍔に嵌め合せ連結されるそれぞれの連結方向に向けた二方向の半円状鍔を連設させてなる中間部材とによって構成されている。
これにより、両側の端部材の半円状鍔と中間部材の半円状鍔との回動自在な連結によって、両側の端部材のそれぞれの接続口部が接続管との接続方向に対して同軸芯上に芯合わせ調整することができるフレキシブル性を備え、しかも、両側の端部材の間における中間部材の連結数によって全体の長さを変更し得るようになっている。
Therefore, in order to solve such a problem, the inner peripheral surface does not have irregularities existing in the pipe direction at a fine pitch like a bellows pipe, and the flexibility to adjust the misalignment with respect to the connection direction is provided. A ventilation joint has been proposed (see Patent Document 1).
The vent joint includes a connection port portion connected to a pipe end portion of a connection pipe by band fastening or the like, end members on both sides having semicircular ridges connected to the connection port portion, and end members on both sides The intermediate member is formed by connecting two-way semicircular ridges in the respective connecting directions that are fitted and connected to the semicircular ridges of the both end members.
As a result, the semicircular ridges of the end members on both sides and the semicircular ridges of the intermediate member are pivotally connected so that the connection ports of the end members on both sides are coaxial with the connection direction to the connection pipe. It has flexibility to adjust the alignment on the core, and the entire length can be changed depending on the number of intermediate members connected between the end members on both sides.
ところで、特許文献１に記載の従来技術は、例えば、補正後の図１および図２に示されているように、同じ鍔部（端面）形態にて内外関係で重なり合うように形成されている端部材の雌側半円状鍔を中間部材の雄側半円状鍔に覆う形で嵌め合せ連結させる連結構造である。
そのために、雄雌の両半円状鍔の嵌め合せ重合部の間に、雄雌鍔間をシールするためのＯリングなどのシール材を装填することが必要であるなど、嵌め合せ連結作業に手間が掛かるものとなっていた。
例えば、レンジフードの設置現場において、室内壁面に取り付けられるフード部の接続排気口と、壁部に取り付けられる外部排気口との接続長さに合わせて行われる複数の中間部材を用いた嵌め合せ連結作業おいて、面倒で時間が掛かるなどの取扱い性に問題があった。
By the way, as shown in FIG. 1 and FIG. 2 after correction, for example, the conventional technology described in
For this reason, it is necessary to load a sealing material such as an O-ring for sealing between the male and female collars between the mating overlapping portions of both male and female semicircular baskets. It was time consuming.
For example, at the installation site of a range hood, a fitting connection using a plurality of intermediate members performed according to the connection length of the connection exhaust port of the hood part attached to the indoor wall surface and the external exhaust port attached to the wall part There were problems in handling such as troublesome and time-consuming work.
また、従来技術では、製作面において、両側の端部材の他に異なる二種類の雌側中間部材と雄側中間部材をそれぞれ製作しなければならない。さらに、嵌め合せ重合部の間を埋めるＯリングなどのシール材などが必須部品として必要となるめに、材料費や加工費か嵩むなどによってコスト高になっていた。 In the prior art, in addition to the end members on both sides, two different types of female intermediate members and male intermediate members must be manufactured on the manufacturing surface. Further, since a sealing material such as an O-ring that fills the space between the mating overlapped parts is required as an essential part, the cost is increased due to an increase in material costs and processing costs.
また、嵌め合せ連結作業には、施工者のスキルを要するので、取り付けの完成度は、施工者のスキルに依存し、取り付け品質にばらつきが生じていた。 In addition, since the fitting and connecting work requires the skill of the installer, the degree of completion of the installation depends on the skill of the installer, and the installation quality varies.
前記課題を解決するために、特願２００９−２７９１７において、摺接回動自在に突合せ連結される連結口を両端に有する複数の管状部材を筒状に連結してなる筒状型自在継手であって、この管状部材は、両連結口がそれぞれ斜め角度にて輪切り状にカットされた筒方向の側面視で略Ｖ字形状に形成され、かつ、両連結口に突合せ連結部をそれぞれ備えていることを特徴とする筒状型自在継手の発明を提案した。
ここで、両連結口の突合せ連結部は、一方の連結口が断面視で略Ｌ字形状に形成されている突合せ当接部と、他方の連結口が断面視で略Ｌ字形状に形成されている突合せ嵌合部とから構成されている。そして複数の前記管状部材の両連結口同士の突合せ連結は、断面視で略Ｌ字形状に形成されている一方の連結口側の突合せ当接部を、同じく断面視で略Ｌ字形状に形成されている他方の連結口側の突合せ嵌合部に対する嵌め合せによって容易に行うことができる構造となっている。また、両連結口が真円に形成されている場合には、突合せ当接部を突合せ嵌合部に嵌め合わせた状態で管状部材を円滑に摺接回動させることができる構造となっている。
In order to solve the above-mentioned problem, in Japanese Patent Application No. 2009-27917, a cylindrical universal joint formed by connecting a plurality of tubular members having connecting ports at both ends so as to be slidably contacted and pivoted in a cylindrical shape. The tubular member is formed in a substantially V shape in a side view in a cylindrical direction in which both connection ports are cut in a circular shape at an oblique angle, and each connection port is provided with a butt connection portion. The invention of a cylindrical universal joint characterized by this is proposed.
Here, the butt connecting portion of both connecting ports is formed such that one connecting port is formed in a substantially L shape in a sectional view and the other connecting port is formed in a substantially L shape in a sectional view. And a butt fitting portion. The butt connection between the connection ports of the plurality of tubular members is formed so that the butt contact portion on one connection port side formed in a substantially L shape in a sectional view is also formed in a substantially L shape in a sectional view. It has a structure that can be easily performed by fitting to the butt fitting portion on the other connecting port side. Moreover, when both connection ports are formed in a perfect circle, the tubular member can be smoothly slidably rotated in a state where the butt contact portion is fitted to the butt fitting portion. .
また、突合せ当接部を有する連結口と突合せ嵌合部を有する連結口とを突合せ連結させた状態において、少なくとも突合せ嵌合部の外側シールド面部を、突合せ当接部の内側シールド面部に圧接させる締付けバンドを備えていることも特徴としている。
ここで、この締付けバンドは、断面視で略台形形状に形成され、両開放端側を引き寄せる（締付けバンドの径が小さくなる）ように繋ぐ締付けボルトを備え、かつ、突合せ当接部を有する連結口と突合せ嵌合部を有する連結口とを突合せ連結させた状態において、内側シールド面部の円周端部が外側シールド面部の円周端部よりも外側に飛び出していることが好適なものとなる。また、この締付けバンドを、両開放端側に向けて末広がる断面視で略台形形状に形成することもでき、この場合には、外側シールド面部の外側から突合せ嵌合部と突合せ当接部を包み込むようにセットされる締付けバンドによって、突合せ当接部を突合せ嵌合部に一体的に連結させることができる。
Further, in a state where the connecting port having the butt contact portion and the connecting port having the butt fitting portion are butt-connected, at least the outer shield surface portion of the butt fitting portion is brought into pressure contact with the inner shield surface portion of the butt contact portion. It also features a tightening band.
Here, the tightening band is formed in a substantially trapezoidal shape in a cross-sectional view, includes a tightening bolt that connects both open ends so as to draw the two open ends (the diameter of the tightening band becomes small), and has a butt contact portion. In a state where the opening and the connection port having the butt fitting portion are butt-connected, it is preferable that the circumferential end portion of the inner shield surface portion protrudes outward from the circumferential end portion of the outer shield surface portion. . Further, the tightening band can be formed in a substantially trapezoidal shape in a cross-sectional view that widens toward both open ends. In this case, the butt fitting portion and the butt contact portion are formed from the outside of the outer shield surface portion. The butt contact portion can be integrally connected to the butt fitting portion by the tightening band set so as to be wrapped.
本発明は、複数の管状部材を筒状にした筒状型自在継手の取り付け方法であって、効率的で柔軟な連結作業を可能とし、取り付け時間の短縮化、取り付け品質の均質化を行う、筒状型自在継手の取り付け方法に関する。 The present invention is a tubular universal joint mounting method in which a plurality of tubular members are formed into a cylindrical shape, enabling efficient and flexible connection work, shortening the mounting time, homogenizing the mounting quality, The present invention relates to a method for attaching a cylindrical universal joint.
まず、本筒状型自在継手の組立て原理を説明する。
図１に示すように、本管状部材の一の連結口をＸ−Ｙ平面に向けて置いた場合、本管状部材の他の連結口を含む平面がＸ−Ｙ平面と交差する角度（α：以下中心角という）に従い、三次元空間において、２つの連結口の中心Ｏ0（0,0,0）とＯ1（a,0,b）は、
a = r - rcosα
b = rsinα
（ここで、rは、本管状部材の中心軸の曲率半径）
だけずれることになる。また、この一段目の管状部材をＸ−Ｙ平面でＯ0を中心に回動させれば、連結部の中心点Ｏ1の軌跡は、
x2+y2 = a2, z = b
の円となる。
さらに、この一段目の管状部材の上にもう一つの管状部材を載せる場合には、その二段目の管状部材の連結しない方の連結口の中心点Ｏ2（x2,y2,z2）は、一段目の管状部材を固定して、二段目の管状部材を回動させれば、
従って、図１(b)のように、一段目と同じ向きに載せる場合（この場合を０度の向きという）、Ｏ2の位置は、
（a+b, 0, a+b)
となり、その連結口を含む面は、Ｘ−Ｙ平面に垂直となる。
また、図２のように、１８０度回動させて連結する場合（この場合を１８０度の向きという）の二段目の連結していないほうの連結口の中心点Ｏ2の位置は、
（2a,0,2b）
となり、連結口を含む面はＸ−Ｙ平面に平行となる。この特徴は、αが実質的に何度であっても平行となり、不変である。
そうすると、同じ中心角を持つ本管状部材を２つ１８０度回転させて繋ぎ合せると、連結口の面を平行に保ったままで、連結口の中心点の位置を2aだけずらすことが可能となる。そして、図３のように、この２つの本管状部材の間に直管を入れれば、
As shown in FIG. 1, when one connection port of the tubular member is placed toward the XY plane, an angle (α :) where the plane including the other connection port of the tubular member intersects the XY plane. The center O 0 (0,0,0) and O 1 (a, 0, b) of the two connection ports in the three-dimensional space
a = r-rcosα
b = rsinα
(Where r is the radius of curvature of the central axis of the tubular member)
Will be shifted. Further, if this first-stage tubular member is rotated around O 0 in the XY plane, the locus of the center point O 1 of the connecting portion is
x 2 + y 2 = a 2 , z = b
It becomes a circle.
Further, when another tubular member is placed on the first-stage tubular member, the center point O 2 (x 2 , y 2 , z 2) of the connection port of the second-stage tubular member that is not connected. ) If the first-stage tubular member is fixed and the second-stage tubular member is rotated,
Therefore, as shown in FIG. 1 (b), when placing in the same direction as the first stage (this case is called 0 degree orientation), the position of O 2 is
(A + b, 0, a + b)
Thus, the plane including the connection port is perpendicular to the XY plane.
In addition, as shown in FIG. 2, the position of the center point O 2 of the connection port that is not connected in the second stage in the case of connecting by rotating 180 degrees (in this case, the direction of 180 degrees) is
(2a, 0,2b)
Thus, the plane including the connection port is parallel to the XY plane. This feature is parallel and invariant no matter how many times α is.
Then, when two tubular members having the same central angle are rotated 180 degrees and joined together, it becomes possible to shift the position of the central point of the connection port by 2a while keeping the surface of the connection port parallel. And, if a straight pipe is put between these two tubular members as shown in FIG.
さらに、図４のように、この１８０度の向きで連結した２つの本管状部材の組を繋ぐことでより柔軟な中心点の位置の変更が可能となる。
例えば、図４（ａ）のように、この２つの組合せをＸ軸のプラス方向（図示）に連続的に繋げれば、
（2a,0,2b）、（4a,0,4b）、（6a,0,6b）、、、（2*i*a,0,2*i*b）、、、
（ここで、iは、２つの本管状部材の組の数）
と、離散的に連結口の中心の位置を変化させることができる。
また、図４（ｂ）のように、この１８０度の向きで連結した２つの本管状部材の組を２つ組合せ、上段の該組合せを回動させた場合、上段の該組合せの上側の連結口の中心Ｏ2は、平面視でＯ1を中心とした半径2aの円周の軌跡を描く。そうすると、Ｏ0とＯ2の平面視での距離は、0から4aまで連続的に変化するから、この間の中心点のずれが調整可能となる。
さらに、図４（ｃ）のように、この１８０度の向きで連結した２つの本管状部材の組を３つ組合せ、二段目の該組合せを、Ｏ2をＸ軸線上から一旦離すように回動させ、三段目の組の上側の連結口の中心Ｏ3を再度Ｘ軸線上に戻すように回動させると、平面視で、Ｏ2を頂点とする二等辺三角形Ｏ2Ｏ1Ｏ3を形成するので、Ｏ0とＯ3の距離は同軸上（例えば、同図ではＸ軸上）で、0から2aまで連続的に変化するから、2a以下の中心点のずれであっても同軸上で調整可能となる。従って、連結口の如何なる中心点のずれもこれらの構成により調整することで、中心点を一致させることが可能である。
Furthermore, as shown in FIG. 4, the position of the center point can be changed more flexibly by connecting the pair of two tubular members connected in the 180-degree orientation.
For example, as shown in FIG. 4A, if these two combinations are continuously connected in the positive direction (shown) of the X axis,
(2a, 0,2b), (4a, 0,4b), (6a, 0,6b), (2 * i * a, 0,2 * i * b),
(Where i is the number of sets of two tubular members)
The position of the center of the connection port can be changed discretely.
Further, as shown in FIG. 4B, when two sets of the two tubular members connected in the direction of 180 degrees are combined and the upper combination is rotated, the upper connection of the upper combination is connected. The center O 2 of the mouth draws a circular trajectory with a
Further, as shown in FIG. 4 (c), three sets of two tubular members connected in the 180-degree orientation are combined, and the second-stage combination is set so that O 2 is once separated from the X axis. When it is turned and turned so that the center O 3 of the upper connecting port of the third set is returned to the X-axis line again, the isosceles triangle O 2 O 1 O having O 2 as the apex in plan view is obtained. 3 , the distance between O 0 and O 3 is coaxial (for example, on the X axis in the figure) and continuously changes from 0 to 2a. Therefore, even if the center point is less than 2a, Adjustable on the same axis. Therefore, the center point can be made to coincide by adjusting any deviation of the center point of the connecting port by these configurations.
上記は、連結する２つの開口部を含む平面が平行、例えば、換気装置の接続排気口を含む面と建物の外部排気口を含む面が平行、即ち、通常水平に設置された換気装置の接続排気口と天井位置にある外部排気口をつなげる場合に係るものであり、その場合において接続排気口の中心点と外部排気口の中心点のずれを調整する手段である。 In the above, the plane including the two openings to be connected is parallel, for example, the plane including the connection exhaust port of the ventilator and the plane including the external exhaust port of the building are parallel, that is, the connection of the ventilator normally installed horizontally The present invention relates to the case where the exhaust port is connected to the external exhaust port located at the ceiling, and in that case, means for adjusting the deviation between the center point of the connection exhaust port and the center point of the external exhaust port.
次に、連結する２つの開口部を含む平面が平行でない、例えば、換気装置の接続排気口を含む面と建物の外部排気口を含む面が平行でない場合、即ち、２つの開口部が換気装置の接続排気口と建物壁部の外部排気口である場合（通常垂直）、以下のようになる。 Next, when the plane including the two openings to be connected is not parallel, for example, when the plane including the connection exhaust port of the ventilation device and the plane including the external exhaust port of the building are not parallel, that is, the two openings are the ventilation device. In the case of the connection exhaust port and the external exhaust port of the building wall (usually vertical), it is as follows.
まず、単純化のため、接続排気口を含む面の垂線であって接続排気口の中心点を通る中心軸と外部排気口を含む面の垂線であって外部排気口の中心点を通る中心軸が平行ではないが、同一平面内にある場合について述べる。
上述したとおり、二段目の本管状部材の上面の連結口を含む平面は、二段目の本管状部材が０度の向きから１８０度の向きへの摺接回動の過程で、Ｘ−Ｙ平面に対して２αをなす平面から、Ｘ−Ｙ平面に対して平行な平面へ連続的に変化する。例えばα＝４５度とした場合、二段目の上面の連結口を含む平面を、Ｘ−Ｙ平面に対して０〜９０度のいずれの角度を有する平面とすることができる。ただし、この場合、この平面は、その角度が０度と９０度以外においては、Ｙ軸の正又は負方向に傾いた平面となる。言い換えれば、図５（ａ）に示すように、Ｙ軸方向から見た場合、この上面の連結口が見える状態になる。同図は、二段目の本管状部材を一段目の本管状部材に対して、上から見て（Ｚ軸のプラス側から見て）時計回りに９０度の向きに回動したものである。しかし、さらに、図５（ｂ）に示すように、一段目の本管状部材をＸ−Ｙ平面に対して逆に（同図の場合、上から見て反時計回りに）５４．７度回動させることにより、二段目の本管状部材の上面の連結口を含む平面のＸ−Ｙ平面に対して傾いた角度を維持したまま、再び二段目の本管状部材の上面の連結口を含む平面をＹ軸に平行な平面とする（Ｙ軸方向から見た場合、上面の連結口が見えない状態にする）ことができる。従って、２つの本管状部材の組合せにより、二段目の本管状部材の上面の連結口を含む平面を、特定方向に向けて、Ｘ−Ｙ平面に対して０〜２α度の間でいかなる角度にすることも可能である。
そうすると、例えば、接続排気口の中心軸と外部排気口の中心軸が平行ではない（中心軸が交わる角度をβとする）場合、まずは、接続排気口及び外部排気口のそれぞれにおいて、少なくとも２以上の本管状部材を設置し、接続排気口においては外部排気口の方へ、外部排気口においては接続排気口の方へ例えばそれぞれβ／２ずつ傾かせた平面を形成することにより、２つの二段目の本管状部材の連結していない方の連結口を含む平面をお互いに平行にすることが可能となる。これが可能となれば、その後は上述の方法で中心軸を一致させることにより、本筒状型自在継手の両側の開口部を接続することが可能となる。なお、必ずしもβ／２である必要はなく、一方の傾きが他方の傾きのβを全体とする補角であればよい。
First, for simplification, the vertical axis of the surface including the connection exhaust port and passing through the central point of the connection exhaust port and the vertical axis of the surface including the external exhaust port and passing through the central point of the external exhaust port Are described in the case where they are not parallel but are in the same plane.
As described above, the plane including the connection port on the upper surface of the second-stage tubular member is the same as the second-stage tubular member in the process of sliding contact rotation from 0 degree to 180 degrees. The plane continuously changes from a plane that forms 2α with respect to the Y plane to a plane that is parallel to the XY plane. For example, when α = 45 degrees, the plane including the connection port on the upper surface of the second stage can be a plane having any angle of 0 to 90 degrees with respect to the XY plane. However, in this case, this plane is a plane inclined in the positive or negative direction of the Y axis when the angle is other than 0 degrees and 90 degrees. In other words, as shown in FIG. 5A, when viewed from the Y-axis direction, the connection port on the upper surface can be seen. In the figure, the second-stage tubular member is rotated 90 degrees clockwise with respect to the first-stage tubular member when viewed from above (viewed from the positive side of the Z-axis). . However, further, as shown in FIG. 5B, the first-stage tubular member is turned 54.7 degrees in the direction opposite to the XY plane (in the case shown, counterclockwise when viewed from above). By moving, the connection port on the upper surface of the second-stage tubular member is again maintained while maintaining an angle inclined with respect to the XY plane of the plane including the connection port on the upper surface of the second-stage tubular member. The plane to be included can be a plane parallel to the Y-axis (when viewed from the Y-axis direction, the connection port on the upper surface cannot be seen). Accordingly, by combining the two tubular members, the plane including the connection port on the upper surface of the second tubular member is oriented in a specific direction at any angle between 0 and 2α degrees with respect to the XY plane. It is also possible to make it.
Then, for example, when the central axis of the connection exhaust port and the central axis of the external exhaust port are not parallel (the angle at which the central axis intersects is β), first, at least two or more in each of the connection exhaust port and the external exhaust port The two tubular members are installed to form two planes inclined by β / 2, for example, toward the external exhaust port at the connection exhaust port and toward the connection exhaust port at the external exhaust port. It is possible to make the planes including the connection port of the main tubular member of the stage not connected to each other parallel to each other. If this is possible, then the openings on both sides of the cylindrical universal joint can be connected by aligning the central axes by the method described above. Note that β / 2 is not necessarily required, and it is sufficient that one inclination is a complementary angle with β of the other inclination as a whole.
最後に、２つの開口部の中心軸が平行ではなく、且つ同一平面にもない、両者がねじれの位置ある場合、即ち、図６に示すような、三次元空間における原点Ｏを中心としＸ−Ｙ平面内にある一の開口部と、Ｐ(xp,yp,zp)を中心としＹ−Ｚ平面に平行な面内にある他の開口部を接続する場合について述べる。
例えば、一の開口部の中心軸を含み、且つ他の開口部の中心点を含む平面Ｗを考える。この場合、他の開口部の中心軸と平面Ｗとのなす角度γは、arctan(xp/yp)と、ベクトルＯＰがＸ−Ｙ平面となす角度βは、arctan(zp/(xp 2+yp 2)1/2)と表され、一の開口部に取り付けられる複数の本管状部材の連結していない上端の連結口を含む平面のＸ−Ｙ平面に対する角度と向きを、両開口部の相対的な位置関係で表すことができる。そうすると、上述のとおり、一の開口部に本管状部材を組み合わせて回動させて取り付けることにより、連結していない上端の連結口を含む平面をＸ−Ｙ平面に対していかなる角度をなす平面とすることができ、また、開口部に対して本管状部材を回動させることにより、いかなる向きにもすることができるので、ベクトルＯＰを垂線に持つ平面を形成することが可能である。
また同様に、例えば、一の開口部の中心点を含み、且つ他の開口部の中心軸含む平面Ｗ'を考える。この場合、一の開口部の中心軸と平面Ｗ'とのなす角度γ'は、arctan(yp/zp)と、ベクトルＰＯがＹ−Ｚ平面となす角度β'は、arctan(xp/(yp 2+zp 2)1/2)と表され、他の開口部に取り付けられる複数の本管状部材の連結していない上端の連結口を含む平面のＹ−Ｚ平面に対する角度と向きを、両開口部の相対的な位置関係で表すことができる。そうすると、上述のとおり、他の開口部に本管状部材を組み合わせて回動させて取り付けることにより、連結していない上端の連結口を含む平面をＹ−Ｚ平面に対していかなる角度をなす平面とすることができ、また、開口部に対して本管状部材を回動させることにより、いかなる向きにもすることができるので、ベクトルＰＯを垂線に持つ平面を形成することが可能である。
この結果、一の開口部から連結される複数の本管状部材の連結していない上端の連結口を含む平面と、他の開口部から連結される複数の本管状部材の連結していない上端の連結口を含む平面とをお互いに平行にすることが可能となる。これが可能となれば、その後は上述の方法で中心軸を一致させることにより、本筒状型自在継手の両側の開口部を接続することが可能となる。
Finally, when the central axes of the two openings are not parallel and are not coplanar, both are twisted positions, that is, as shown in FIG. A case where one opening in the Y plane is connected to another opening in the plane parallel to the YZ plane with P (x p , y p , z p ) as the center will be described.
For example, consider a plane W that includes the central axis of one opening and includes the center point of the other opening. In this case, the angle γ between the central axis of the other opening and the plane W is arctan (x p / y p ), and the angle β between the vector OP and the XY plane is arctan (z p / (x p 2 + y p 2 ) 1/2 ), and the angle and direction of the plane including the unconnected upper end connection ports of the plurality of tubular members attached to one opening with respect to the XY plane, It can be represented by the relative positional relationship between the two openings. Then, as described above, the plane including the connecting port at the upper end that is not connected to the plane that forms any angle with respect to the XY plane can be obtained by combining and rotating the tubular member in one opening. In addition, since the tubular member can be turned in any direction by rotating the tubular member with respect to the opening, it is possible to form a plane having the vector OP as a perpendicular line.
Similarly, for example, a plane W ′ including the center point of one opening and the center axis of the other opening is considered. In this case, the angle γ ′ formed between the central axis of one opening and the plane W ′ is arctan (y p / z p ), and the angle β ′ between the vector PO and the YZ plane is arctan (x p / (y p 2 + z p 2 ) 1/2 ), an angle with respect to the YZ plane of the plane including the connection ports at the upper ends of the plurality of tubular members attached to the other openings that are not connected; The direction can be expressed by the relative positional relationship between the two openings. Then, as described above, the plane including the connecting port at the upper end that is not connected can be formed at any angle with respect to the YZ plane by attaching the tubular member to the other opening and rotating and attaching it. In addition, since the tubular member can be turned in any direction by rotating the tubular member with respect to the opening, it is possible to form a plane having the vector PO as a perpendicular line.
As a result, a plane including the connection port at the upper end of the plurality of tubular members connected from one opening and the upper end of the connection between the plurality of tubular members connected from the other opening. It is possible to make the plane including the connection port parallel to each other. If this is possible, then the openings on both sides of the cylindrical universal joint can be connected by aligning the central axes by the method described above.
以上の組み立て原理に基づき、上記課題を解決するため、本発明は、摺接回動自在に突合せ連結される連結口を両端に有する複数の管状部材を筒状にして、２つの開口部を連結するための筒状型自在継手の取り付け方法であって、それぞれの前記開口部を含む平面が互いに平行でなく、かつ、それぞれの前記開口部の中心における前記開口部を含む平面の垂線が互いに交差しない場合において、前記管状部材の一端の連結口を含む平面が他端の連結口を含む平面と平行でない管状部材を少なくとも２つ以上用い、前記開口部に前記管状部材の一端の連結口を取り付けるとともに、他端の連結口に他の前記管状部材の一端の連結口を互いに回動させて連結し、前記回動させた連結を繰り返すことにより、前記２つの開口部を連結する筒状型自在継手の取り付け方法である。
この方法によれば、本管状部材を用いて２つの開口部を連結するにあたり、容易、迅速、効率的、コスト安であり、しかも柔軟な取り付け方法の提供が可能となる。
Based on the above assembly principle, in order to solve the above-mentioned problems, the present invention connects a plurality of opening portions by forming a plurality of tubular members having connecting ports that are butt-coupled so as to be slidable and rotatable at both ends. A method of attaching a cylindrical universal joint for carrying out the above-described process, wherein the planes including the openings are not parallel to each other, and the perpendiculars of the planes including the openings at the centers of the openings intersect each other If not, at least two tubular members whose plane including the connection port at one end of the tubular member is not parallel to the plane including the connection port at the other end are used, and the connection port at one end of the tubular member is attached to the opening. In addition, a cylindrical mold that connects the two openings by repeatedly connecting the connection port at one end of the other tubular member to the connection port at the other end, and repeating the rotated connection. It is a method of attaching the hand.
According to this method, it is possible to provide a flexible attachment method that is easy, quick, efficient, and low in cost when connecting two openings using the tubular member.
また、本発明は、前記平行でない管状部材を少なくとも２つ以上用いるとともに、前記管状部材の一端の連結口を含む平面が他端の連結口を含む平面と平行である前記管状部材を用いることを特徴とすることができる。
この方法によれば、直管を用いることができる場合には直管を用いることにより、迅速な取り付けが可能となる。
In addition, the present invention uses at least two or more non-parallel tubular members, and uses the tubular member in which a plane including a connection port at one end of the tubular member is parallel to a plane including a connection port at the other end. Can be a feature.
According to this method, when a straight pipe can be used, quick installation is possible by using the straight pipe.
また、本発明は、前記平行でない管状部材において、前記一端の連結口を含む平面と前記他端の連結口を含む平面とがなす角度が同じ管状部材を用いることを特徴とすることができる。
この方法によれば、部品の種類を減らすことができ、種類の少ない規格化された部品のみで取り付け可能となる。
In the non-parallel tubular member, the present invention may be characterized in that a tubular member having the same angle formed by the plane including the connecting port at the one end and the plane including the connecting port at the other end is used.
According to this method, it is possible to reduce the types of parts, and it is possible to attach with only a few standardized parts.
また、本発明は、２つの前記角度が同じ管状部材を連結するとき、連結しない２つの他端を含む平面が互いに平行になるように回動させて連結することを特徴とすることができる。
この方法によれば、両端の平面を平行に保ったまま、軸心のずれを調節することが可能となり、取り付けが容易となる。
In addition, the present invention can be characterized in that when two tubular members having the same angle are connected, they are rotated and connected so that planes including two other ends that are not connected are parallel to each other.
According to this method, it is possible to adjust the shift of the axial center while keeping the flat surfaces at both ends parallel to each other, and attachment is facilitated.
また、本発明は、前記連結しない２つの他端を含む平面が互いに平行になるように回動させて連結した管状部材の組みを少なくとも連続して２つ連結することを特徴とすることができる。
この方法によれば、両端の平面を平行に保ったまま、僅かな軸心のずれも調節可能となり、自由度の高い取り付けが可能となる。
In addition, the present invention may be characterized in that at least two sets of tubular members connected by being rotated so that the planes including the two other ends not connected to each other are parallel to each other are connected. .
According to this method, it is possible to adjust a slight misalignment of the shaft center while keeping the flat surfaces at both ends in parallel, and attachment with a high degree of freedom is possible.
また、本発明は、前記２つの開口部の内、一が調理器具の上方に設置されるレンジフードの上部に設けられた接続排気口であり、他が前記レンジフードの周辺壁面或いは上方天井面に設けられた外部排出口であることを特徴とすることができる。
この方法によれば、２つの開口部の一がレンジフードの上部に設けられた接続排気口、他がこのレンジフードの周辺壁面や上方天井面に設けられた外部排出口である場合においても、容易、迅速、効率的で柔軟な連結作業を可能とし、事前に両開口部の位置関係さえ分かれば、事前に設計、検証が可能になることにより取り付け時間の短縮化が図られる。また、部材の規格化、部材点数の少数化を行うことができ、コスト削減が可能となる。
Moreover, this invention is a connection exhaust port provided in the upper part of the range hood installed above cooking utensil among the said 2 openings, and the other is the surrounding wall surface or upper ceiling surface of the said range hood It is characterized by being an external outlet provided in the.
According to this method, even when one of the two openings is a connection exhaust port provided at the top of the range hood, and the other is an external exhaust port provided on the peripheral wall surface or upper ceiling surface of the range hood, Easy, quick, efficient and flexible connection work is possible, and if the positional relationship between the two openings is known in advance, the design and verification can be performed in advance, thereby shortening the installation time. In addition, the standardization of members and the number of members can be reduced, and the cost can be reduced.
上記の効果に加え、取り付け作業者に本取り付け方法などを記載した文書で指示することにより、的確な指示が可能となるので、現場での手戻り防止や取り付け品質の均質化が図られる。 In addition to the above-described effects, by giving instructions to the installation operator with a document describing the installation method and the like, it is possible to give an accurate instruction, thereby preventing rework on site and making the installation quality uniform.
[壁面開口部との取り付け方法]
レンジフードの接続排気口と壁面にある外部排気口が、図８に示すような位置関係にある場合に、管状部材を用いて両排気口を連結する筒状型自在継手の取り付け方法を説明する。説明の都合上、管状部材において、管状部材の連結口を含む両平面が最も近接する部分を０度の位置、逆に最も離れる位置を１８０度の位置とし、両連結口の０度の位置を結ぶ側面部を腹部、１８０度の位置を結ぶ側面部を背部と呼ぶ。
なお、ここで用いる管状部材は、両連結口を含む平面のなす角度（中心角）は３０度であり、その直径は外寸で１５１ミリメートル（ｍｍ）、曲率中心から腹部までの距離は２５ｍｍ、背部までの距離は１７６ｍｍであり、その形状の概要は図１０に示す。
また、図８に示すように、両排気口の中心は、水平方向に３１６．８センチメートル（ｃｍ）及び２２５．６ｃｍ、垂直方向に３１２．９ｃｍの距離がある。両排気口を含む平面は直角をなしている。また、両排気口の直径は、管状部材の上記直径に対応している。
[Mounting method with wall opening]
A method for attaching a cylindrical universal joint that connects both exhaust ports using a tubular member when the connection exhaust port of the range hood and the external exhaust port on the wall surface are in a positional relationship as shown in FIG. . For convenience of explanation, in the tubular member, the portion where both planes including the connection port of the tubular member are closest is the 0 degree position, and conversely, the most distant position is the 180 degree position. The side part to be connected is called the abdomen, and the side part connecting the positions of 180 degrees is called the back part.
In addition, as for the tubular member used here, the angle (center angle) formed by the plane including both connection ports is 30 degrees, the diameter is 151 mm (mm) as an outer dimension, the distance from the center of curvature to the abdomen is 25 mm, The distance to the back is 176 mm, and the outline of the shape is shown in FIG.
Moreover, as shown in FIG. 8, the center of both exhaust ports has a distance of 316.8 centimeters (cm) and 225.6 cm in the horizontal direction and 312.9 cm in the vertical direction. The plane including both exhaust ports is perpendicular. Moreover, the diameter of both exhaust ports respond | corresponds to the said diameter of a tubular member.
図７−１から図７−５に従って逐次説明する。図７−１(a)は両排気口が上記関係を有する場合の斜視図、図７−１(b)は同側面図であり、まだ両排気口に管状部材は取り付けられていない状態である。また、本実施形態における基点（０度）を示している。
（１）一つ目の管状部材：レンジフードの正面から見た時に、管状部材の背部が左に腹部が右に見える位置に置いた状態を「０度」とし、この０度を基点にして、本管状部材を上からみて時計回りに２５度回動させて連結する。（図７−２）
（２）二つ目の管状部材：一つ目の管状部材と二つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を上からみて反時計回りに３０度回動させて連結する。（図７−３）
（３）三つ目の管状部材：二つ目の管状部材と三つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を上からみて反時計回りに８０度回動させて連結する。（図７−４）
（４）四つ目の管状部材：レンジフードの上面から見た時に、管状部材の背部が右に腹部が左に見える位置に置いた状態を「０度」とし、この０度を基点にして、本管状部材を壁面に向かって見て反時計回りに２２．３度回動させて連結する。（図７−２）
（５）五つ目の管状部材：四つ目の管状部材と五つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を壁面に向かって見て反時計回りに７１．９度回動させて連結する。（図７−３）
（６）六つ目の管状部材：五つ目の管状部材と六つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を壁面に向かって見て時計回りに８０．２度回動させて連結する。（図７−４）
（７）この段階で、三つ目の管状部材と六つ目の管状部材の未だ連結されていない連結口を含む平面は平行となり、且つこの連結口の中心を通るこの平面の垂線（中心軸）は一致している。従って、残った部分は直管で連結することができる。（図７−５）
Description will be made sequentially according to FIGS. 7-1 to 7-5. FIG. 7-1 (a) is a perspective view when both exhaust ports have the above relationship, FIG. 7-1 (b) is a side view thereof, and a tubular member is not yet attached to both exhaust ports. . Moreover, the base point (0 degree) in this embodiment is shown.
(1) First tubular member: When viewed from the front of the range hood, the state in which the back of the tubular member is placed on the left and the abdomen on the right is “0 degree”. The tubular member is connected by being rotated 25 degrees clockwise as viewed from above. (Figure 7-2)
(2) Second tubular member: The state in which the first tubular member and the abdomen (and back portion) of the second tubular member coincide with each other is defined as “0 degree”. The members are connected by rotating 30 degrees counterclockwise when viewed from above. (Figure 7-3)
(3) Third tubular member: The state in which the second tubular member and the abdomen (and back portion) of the third tubular member coincide with each other is defined as “0 degree”. The members are connected by rotating 80 degrees counterclockwise when viewed from above. (Figure 7-4)
(4) Fourth tubular member: When viewed from the top of the range hood, the state where the back of the tubular member is placed on the right and the abdomen is seen on the left is defined as “0 degree”. The tubular member is connected by rotating 22.3 degrees counterclockwise when viewed toward the wall surface. (Figure 7-2)
(5) Fifth tubular member: The state in which the abdomen (and the back portion) of the fourth tubular member and the fifth tubular member coincide with each other is defined as “0 degree”, and this zero degree is used as a base point. The members are connected by rotating 71.9 degrees counterclockwise when viewed toward the wall surface. (Figure 7-3)
(6) Sixth tubular member: The state in which the abdomen (and the back part) of the fifth tubular member and the sixth tubular member coincide with each other is defined as “0 degree”. The members are connected by rotating 80.2 degrees clockwise as viewed toward the wall surface. (Figure 7-4)
(7) At this stage, the plane including the connection port of the third tubular member and the sixth tubular member which are not yet connected is parallel, and the perpendicular of the plane passing through the center of the connection port (central axis) ) Matches. Therefore, the remaining part can be connected with a straight pipe. (Fig. 7-5)
[天井面開口部との取り付け方法]
レンジフードの接続排気口と天井面にある外部排気口が、図９に示すような位置関係にある場合に、管状部材を用いて両排気口を連結する筒状型自在継手の取り付け方法を説明する。なお、ここで用いる管状部材は、上記の[壁面開口部との取り付け方法]に用いられた管状部材と同じである。
また、図９に示すように、両排気口の中心は、水平方向に３１３．９センチメートル（ｃｍ）及び１５２．１ｃｍ、垂直方向に３９８．８ｃｍの距離がある。両排気口を含む平面は平行をなしている。また、両排気口の直径は、管状部材の上記直径に対応している。
[How to attach to the ceiling opening]
Explains how to install a tubular universal joint that uses a tubular member to connect both exhaust ports when the connection exhaust port of the range hood and the external exhaust port on the ceiling surface are in the positional relationship shown in FIG. To do. The tubular member used here is the same as the tubular member used in the above [Method of attaching to wall surface opening].
Moreover, as shown in FIG. 9, the center of both exhaust ports has a distance of 313.9 centimeters (cm) and 152.1 cm in the horizontal direction and 398.8 cm in the vertical direction. The plane including both exhaust ports is parallel. Moreover, the diameter of both exhaust ports respond | corresponds to the said diameter of a tubular member.
（１）一つ目の管状部材：レンジフードの正面から見た時に、管状部材の背部が左に腹部が右に見える位置に置いた状態を「０度」とし、この０度を基点にして、本管状部材を上からみて反時計回りに３５度回動させて連結する。
（２）二つ目の管状部材：一つ目の管状部材と二つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を上からみて反時計回りに２０度回動させて連結する。
（３）三つ目の管状部材：二つ目の管状部材と三つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を上からみて時計回りに１１０度回動させて連結する。
（４）四つ目の管状部材：レンジフードの正面から見た時に、管状部材の背部が右に腹部が左に見える位置に置いた状態を「０度」とし、この０度を基点にして、本管状部材を下からみて（天井を見上げて）時計回りに７９．３度回動させて連結する。
（５）五つ目の管状部材：四つ目の管状部材と五つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を下からみて（天井を見上げて）反時計回りに５７．６度回動させて連結する。
（６）六つ目の管状部材：五つ目の管状部材と六つ目の管状部材の腹部（および背部）を一致させた状態を「０度」とし、この０度を基点として、本管状部材を下からみて（天井を見上げて）反時計回りに５４．１度回動させて連結する。
（７）この段階で、三つ目の管状部材と六つ目の管状部材の未だ連結されていない連結口を含む平面は平行となり、且つこの連結口の中心を通るこの平面の垂線（中心軸）は一致している。従って、残った部分は直管で連結することができる。
(1) First tubular member: When viewed from the front of the range hood, the state in which the back of the tubular member is placed on the left and the abdomen on the right is “0 degree”. The tubular member is connected by rotating 35 degrees counterclockwise when viewed from above.
(2) Second tubular member: The state in which the first tubular member and the abdomen (and back portion) of the second tubular member coincide with each other is defined as “0 degree”. The members are connected by rotating 20 degrees counterclockwise when viewed from above.
(3) Third tubular member: The state in which the second tubular member and the abdomen (and back portion) of the third tubular member coincide with each other is defined as “0 degree”. The members are connected by turning 110 degrees clockwise as viewed from above.
(4) Fourth tubular member: When viewed from the front of the range hood, the state in which the back of the tubular member is placed on the right side and the abdomen on the left side is “0 degree”. When this tubular member is viewed from below (looking up at the ceiling), it is rotated by 79.3 degrees clockwise to be connected.
(5) Fifth tubular member: The state in which the abdomen (and the back portion) of the fourth tubular member and the fifth tubular member coincide with each other is defined as “0 degree”, and this zero degree is used as a base point. View the member from below (looking up at the ceiling) and rotate it 57.6 degrees counterclockwise to connect.
(6) Sixth tubular member: The state in which the abdomen (and the back part) of the fifth tubular member and the sixth tubular member coincide with each other is defined as “0 degree”. View the member from below (looking up at the ceiling) and rotate it 54.1 degrees counterclockwise to connect.
(7) At this stage, the plane including the connection port of the third tubular member and the sixth tubular member which are not yet connected is parallel, and the perpendicular of the plane passing through the center of the connection port (central axis) ) Matches. Therefore, the remaining part can be connected with a straight pipe.
[その他の実施形態]
本発明は上記実施の形態にこれに限定されるものでなく、特許請求の範囲に記載された発明の要旨を逸脱しない範囲内での種々、設計変更した形態を技術的範囲に含むものである。
上記の実施形態において、二つの開口部が同じ位置関係にある場合にあっても、上記とは異なる取り付け方法を行うことが可能である。
両端連結口の曲率半径は同一であることが好ましいが、同一でなければならないことはない。
レンジフードと天井は水平に設置されているものとして、また、壁は垂直に設置されているものとして上述したが、これに限定されるものではなく、例えば、傾斜天井などのようなものであってもよい。
[Other embodiments]
The present invention is not limited to the above-described embodiment, but includes variously modified forms within the technical scope without departing from the gist of the invention described in the claims.
In the above embodiment, even when the two openings are in the same positional relationship, it is possible to perform an attachment method different from the above.
Although it is preferable that the curvature radii of both end connection ports are the same, they do not have to be the same.
The range hood and the ceiling are described as being installed horizontally, and the wall is installed as being vertical. However, the present invention is not limited to this. For example, it may be an inclined ceiling. May be.
平行でない管状部材において、一端の連結口を含む平面と他端の連結口を含む平面とがなす角度は、０度より大きく、９０度より小さいことが好ましい。ただし、９０度より大きく、１８０度より小さいことを除くものではない。 In a non-parallel tubular member, the angle formed by the plane including the connecting port at one end and the plane including the connecting port at the other end is preferably greater than 0 degrees and smaller than 90 degrees. However, it does not exclude that the angle is larger than 90 degrees and smaller than 180 degrees.
連結口と開口部の形状は、円として記述しているが、これに限定するものではない。例えば、正多角形であってもよい。この場合は、回動する角度は、３６０／Ｎ度（Ｎは、正Ｎ角形のＮ）が単位となる。例えば、形状が正八角形の場合、４５度単位で回動することとなる。 Although the shape of the connection port and the opening is described as a circle, it is not limited to this. For example, it may be a regular polygon. In this case, the angle of rotation is 360 / N degrees (N is a regular N-square N). For example, when the shape is a regular octagon, it is rotated in units of 45 degrees.
摺接回動し連結する際に、どの程度回動させたら良いのかの目安になる、連結口の周囲に目盛りを描くことが望ましい。 It is desirable to draw a scale around the connection port, which is a measure of how much to rotate when sliding and rotating.
１ 開口部
２ レンジフード
３ 壁面
４ 管状部材
５ 直管
DESCRIPTION OF
Claims (8)
それぞれの前記開口部を含む平面が互いに平行でなく、かつ、それぞれの前記開口部の中心における前記開口部を含む平面の垂線が互いに交差しない場合において、
前記管状部材の一端の連結口を含む平面が他端の連結口を含む平面と平行でない管状部材を少なくとも２つ以上用い、前記開口部に前記管状部材の一端の連結口を取り付けるとともに、他端の連結口に他の前記管状部材の一端の連結口を互いに回動させて連結し、前記回動させた連結を繰り返すことにより、前記２つの開口部を連結する筒状型自在継手の取り付け方法。 A tubular type universal joint mounting method for connecting two openings by forming a plurality of tubular members having connection ports that are butt-coupled so as to be able to slidably contact and rotate at both ends,
In the case where the planes including the respective openings are not parallel to each other, and the perpendiculars of the planes including the openings at the center of the respective openings do not intersect each other,
Using at least two tubular members whose plane including the connecting port at one end of the tubular member is not parallel to the plane including the connecting port at the other end, attaching the connecting port at one end of the tubular member to the opening, A connecting method of a cylindrical universal joint that connects the two openings by repeatedly connecting the connection ports at one end of the other tubular member to the connection port of the other, and repeating the rotated connection. .
それぞれの前記開口部に、前記管状部材の一端の連結口を含む平面が他端の連結口を含む平面と平行でない管状部材を少なくとも２つ以上用いて取り付ける工程と、Attaching to each of the openings using at least two or more tubular members whose plane including the connecting port at one end of the tubular member is not parallel to the plane including the connecting port at the other end;
それぞれの前記開口部において、前記２つ以上の前記平行でない管状部材を互いに回動させ、前記２つ以上の前記平行でない管状部材の連結口の中で未だ連結されていない未連結口を含む平面が互いに平行となり、且つ前記未連結口の中心を通り前記未連結口を含む平面の垂線が互いに一致するように連結する工程と、In each of the openings, the two or more non-parallel tubular members are rotated with respect to each other, and a plane including an unconnected port that is not yet connected among the connection ports of the two or more non-parallel tubular members. Are connected in parallel to each other and pass through the center of the unconnected port so that the perpendiculars of the plane including the unconnected port match each other;
両前記未連結口を、前記管状部材の一端の連結口を含む平面が他端の連結口を含む平面と平行である管状部材により連結する工程と、Connecting both the unconnected ports by a tubular member in which a plane including a connecting port at one end of the tubular member is parallel to a plane including a connecting port at the other end;
を含む、前記２つの開口部を連結する筒状型自在継手の取り付け方法。A method for attaching a cylindrical universal joint that connects the two openings.
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| JP2018136007A (en) * | 2017-02-24 | 2018-08-30 | 株式会社ハーマン | Cylindrical universal joint |
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| JPS611530U (en) * | 1984-06-11 | 1986-01-08 | 積水化学工業株式会社 | gutter fittings |
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