JP2006080899A - Connection method of waveguide tubes and connection structure - Google Patents

Connection method of waveguide tubes and connection structure Download PDF

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JP2006080899A
JP2006080899A JP2004262765A JP2004262765A JP2006080899A JP 2006080899 A JP2006080899 A JP 2006080899A JP 2004262765 A JP2004262765 A JP 2004262765A JP 2004262765 A JP2004262765 A JP 2004262765A JP 2006080899 A JP2006080899 A JP 2006080899A
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waveguide
waveguides
flange portion
circumferential surface
flange
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JP4234656B2 (en
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Yutaro Sekimoto
裕太郎 関本
Kazufusa Noda
一房 野田
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OJIMA SHISAKU KENKYUSHO KK
Oshima Prototype Engineering Co Ltd
National Institute of Natural Sciences
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OJIMA SHISAKU KENKYUSHO KK
Oshima Prototype Engineering Co Ltd
National Institute of Natural Sciences
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Abstract

<P>PROBLEM TO BE SOLVED: To provide the connection structure of a waveguide tube with an advantage in the reduction of the propagation loss of the waveguide tube while two waveguide tubes can be connected by aligning their axes. <P>SOLUTION: Circumferential faces 28, 40, 52 and 54 with the same diameters are formed with centers of axes of waveguide tubes 20, 32 and 40 at flanges 26, 36, 48 and 50 of waveguide tubes 10, 12 and 14. When edge faces of the flanges 26, 48 are fitted, the axes of waveguides in the waveguide tubes are aligned by positioning circumferential faces 28, 52 of the flanges on a virtual circumferential face having the diameter. Similarly, when edge faces of the flanges 36, 50 are fitted, the axes of waveguides in the waveguide tubes are aligned by taking the use of circumferential faces 40, 54 of the flanges. At the position near the periphery of the flange, the positioning of two waveguide tubes around the axes of waveguides thereof is carried out by inserting dowel pins 30, 42, 57 and 59 in long grooves 31, 43, 56 and 58. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は導波管の接続方法および接続構造に関し、さらに詳細には、２つの導波管の導波路の軸心を合致させて接続するようにした導波管の接続方法および接続構造に関する。   The present invention relates to a waveguide connection method and a connection structure, and more particularly, to a waveguide connection method and a connection structure in which the axes of two waveguides are connected in alignment.

導波管は、導波路を有する管路部と、この管路部の端部に設けられ前記導波路が開口するフランジ部とを有している。
そして、複数の導波管は、それらのフランジ部を連結することで接続されている。
一方、複数の導波管を接続する場合、伝播損失を可及的に減少させるため、導波路を合致させる必要がある。
そのため、従来では、接続すべき２つの導波管の一方の導波管のフランジ部に２本のノックピンを設け、他方の導波管のフランジ部に２つの位置決め孔を設け、これらノックピンを位置決め孔に挿入させることで、導波路を合致させるようにしている。
特開平６−１７７６０１号公報 The waveguide has a duct portion having a waveguide, and a flange portion provided at an end of the duct portion and opening the waveguide.
And the some waveguide is connected by connecting those flange parts.
On the other hand, when connecting a plurality of waveguides, it is necessary to match the waveguides in order to reduce the propagation loss as much as possible.
Therefore, conventionally, two knock pins are provided in the flange portion of one of the two waveguides to be connected, and two positioning holes are provided in the flange portion of the other waveguide, and these knock pins are positioned. The waveguide is matched by inserting it into the hole.
JP-A-6-177601

しかしながら、このように２本のノックピンを用いた従来技術では、２本のノックピンの一方を、位置決め孔の内周面に対して隙間なく挿入できる寸法で形成するものの、２本のノックピンの他方は、ノックピンや位置決め孔の損傷を阻止する観点から、位置決め孔の内周面との間に僅かな隙間を確保した状態で挿入できる寸法に形成しており、そのため、導波路の軸心を合致させた状態で導波管を接続し難く、導波管の伝播損失を減少する上で不利があった。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、２つの導波管の導波路の軸心を合致させて接続でき、導波管の伝播損失を減少する上で有利な導波管の接続方法および接続構造を提供することにある。 However, in the conventional technique using two knock pins as described above, one of the two knock pins is formed with a size that can be inserted into the inner peripheral surface of the positioning hole without any gap, but the other of the two knock pins is From the standpoint of preventing damage to the knock pin and positioning hole, it is dimensioned so that it can be inserted with a slight clearance between it and the inner peripheral surface of the positioning hole. In this state, it is difficult to connect the waveguides, which is disadvantageous in reducing the propagation loss of the waveguides.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to connect the waveguides with the same axis center of the two waveguides, thereby reducing the propagation loss of the waveguides. An advantageous waveguide connection method and connection structure are provided.

前記目的を達成するため本発明は、導波路を有する管路部と、この管路部の端部に設けられ前記導波路が開口するフランジ部とを有する２つの導波管を、それらのフランジ部の端面を合わせそれらフランジ部を連結することで２つの導波管の導波路を接続する方法であって、前記各導波管のフランジ部にそれぞれそれらの導波路の軸心を中心とした同一半径の円周面を設け、前記各導波管のフランジ部の一方にノックピンを、他方に該フランジ部の半径方向に沿って延在する長溝を設け、前記フランジ部の端面を合わせる際に、２つの導波管のフランジ部の円周面を、前記半径を有する仮想の円周面上に位置させることで各導波管の導波路の軸心を合致させ、前記ノックピンを前記長溝に挿入することで２つの導波管の導波路の軸心回りについての位置決めを行なうようにしたことを特徴とする。
また、本発明は、導波路を有する管路部と、この管路部の端部に設けられ前記導波路が開口するフランジ部とを有する２つの導波管を、それらのフランジ部の端面を合わせそれらフランジ部を連結することで２つの導波管の導波路を接続する構造であって、前記各導波管のフランジ部にそれぞれそれらの導波路の軸心を中心とした同一半径の円周面が設けられ、前記２つの導波管のうちの一方の導波管のフランジ部に、前記導波路の軸心回りについての位置決めを行なうノックピンが設けられ、前記２つの導波管のうちの他方の導波管のフランジ部に、該フランジ部の半径方向に沿って延在し前記ノックピンが挿入される長溝が設けられ、前記各導波管のフランジ部の円周面が、前記半径を有する仮想の円周面上に位置するように前記フランジ部の端面が合わせられ、かつ、前記ノックピンが前記長溝に挿入された状態で２つの導波管のフランジ部が連結されていることを特徴とする。 In order to achieve the above object, the present invention relates to two waveguides having a pipe part having a waveguide and a flange part provided at an end of the pipe part and opening the waveguide. A method of connecting the waveguides of two waveguides by aligning the end faces of the portions and connecting the flange portions, and centering the axis of each of the waveguides on the flange portions of the waveguides When a circumferential surface having the same radius is provided, a knock pin is provided on one of the flange portions of each waveguide, and a long groove extending along the radial direction of the flange portion is provided on the other, and the end surfaces of the flange portions are aligned. By locating the circumferential surfaces of the flange portions of the two waveguides on the virtual circumferential surface having the radius, the waveguide axes of the respective waveguides are matched, and the knock pin is formed into the long groove. By inserting, it can be connected around the axis of the waveguide of the two waveguides. Characterized in that to carry out the positioning of Te.
Further, the present invention provides two waveguides having a duct portion having a waveguide and a flange portion provided at an end portion of the duct portion and opening the waveguide, and having end faces of the flange portions. In addition, the waveguides of the two waveguides are connected by connecting the flange portions, and each of the flange portions of the waveguides has a circle with the same radius centered on the axis of the waveguides. A peripheral surface is provided, and a knock pin for positioning around the axis of the waveguide is provided on a flange portion of one of the two waveguides, A long groove extending along the radial direction of the flange portion and into which the knock pin is inserted is provided in the flange portion of the other waveguide, and the circumferential surface of the flange portion of each waveguide is the radius. The franc to be located on a virtual circumferential surface having Part end faces are combined in, and wherein the flange portion of the two waveguides in a state in which the knock pin is inserted into the longitudinal groove is connected.

本発明では、接続すべき２つの導波管の導波路の軸心が合致され、また、それらの軸心回りの姿勢が合致された状態で連結されるので、２本のノックピンと２つの位置決め孔を用いた従来の導波管の接続方法、接続構造に比べ、伝播損失を格段と減少させることができる。   In the present invention, since the axes of the waveguides of the two waveguides to be connected are matched and connected in a state where the postures around the axes are matched, two knock pins and two positioning pins are connected. Propagation loss can be significantly reduced compared to conventional waveguide connection methods and connection structures using holes.

本発明では、２つの導波管のフランジ部にそれぞれそれらの導波路の軸心を中心とした同一半径の円周面を設け、この円周面を基準として２つの導波管のフランジ部を連結することで上記の目的を達成した。   In the present invention, the flange portions of the two waveguides are provided with circumferential surfaces having the same radius around the axis of the waveguides, and the flange portions of the two waveguides are provided with reference to the circumferential surfaces. The above objective was achieved by linking.

以下、本発明の実施例について図面を参照して説明する。
図１は三つの導波管が連結された状態の正面図、図２（Ａ）は第１導波管の正面図、（Ｂ）は（Ａ）のＢ矢視図、図３（Ａ）は第２導波管の正面図、（Ｂ）は（Ａ）のＢ矢視図、図４（Ａ）は第３導波管の側面図、（Ｂ）は（Ａ）のＢ矢視図、図５（Ａ）は位置決め部材の正面図、（Ｂ）は（Ａ）のＢ矢視図を示している。
図１では、第１導波管１０と第２導波管１２とが第３導波管１４を挟んで連結され、この実施例ではこれらの連結に２つの位置決め部材１６が用いられている。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a front view of a state in which three waveguides are connected, FIG. 2A is a front view of the first waveguide, FIG. 1B is a view taken in the direction of arrow B in FIG. Is a front view of the second waveguide, (B) is a view from arrow B of (A), FIG. 4 (A) is a side view of the third waveguide, and (B) is a view from arrow B of (A). FIG. 5A is a front view of the positioning member, and FIG. 5B is a view taken in the direction of arrow B in FIG.
In FIG. 1, a first waveguide 10 and a second waveguide 12 are connected with a third waveguide 14 interposed therebetween, and in this embodiment, two positioning members 16 are used for the connection.

図２に示すように、第１導波管１０は、導波路２０を有する管路部２２と、この管路部２２の両端に設けられフランジ部２４，２６とを有している。
管路部２２は円柱状に形成され、導波路２０は、断面が矩形で管路部の２２の軸心に沿って管路部２２の全長にわたり直線状に延在し、導波路２０の両端はフランジ部２４，２６に開口している。
フランジ部２４，２６のうち第３導波管１４に連結されるフランジ部２６は、その外周部が導波路２０の軸心を中心とした半径の円周面２８で形成されている。このような円周面２８の作り方としては、例えば、フライス盤のテーブル上に第３導波管１４をセットし、カッターの旋回運動の中心を導波路２０の軸心に合致させ、その後カッターを旋回してフランジ部２４，２６を切削することなどが挙げられる。
フランジ部２６の端面の中央寄り箇所には、導波路２０の開口を囲むように小径で平坦な中央当接面２６０２が形成され、この中央当接面２６０２の周囲は凹部２６０４として形成され、また、端面の外周部は中央当接面２６０２と同一の高さの環状で平坦な外周当接面２６０６として形成され、フランジ部２６が第３導波管１４のフランジ部に連結された際にフランジ部２６が第３導波管１４のフランジ部に対して隙間なく当接され導波路２０が接続される部分の周りに隙間が生じないように図られている。
フランジ部２６の端面の外周寄りの凹部２６０４箇所には、４つのボルト挿通孔２６０８が形成され、また、１本のノックピン３０が導波路２０の軸心と平行する方向に突設され、さらに、１つの長溝３１がフランジ部２６の半径方向に沿って延在形成され、その外端はフランジ部２６の半径方向外方に開放されている。 As shown in FIG. 2, the first waveguide 10 has a duct portion 22 having a waveguide 20, and flange portions 24 and 26 provided at both ends of the duct portion 22.
The pipe section 22 is formed in a cylindrical shape, and the waveguide 20 has a rectangular cross section and extends linearly over the entire length of the pipe section 22 along the axis of the pipe section 22. Is open to the flange portions 24, 26.
Of the flange portions 24 and 26, the flange portion 26 connected to the third waveguide 14 has an outer peripheral portion formed by a circumferential surface 28 having a radius centered on the axis of the waveguide 20. As a method for making such a circumferential surface 28, for example, the third waveguide 14 is set on a table of a milling machine, the center of the turning motion of the cutter is aligned with the axis of the waveguide 20, and then the cutter is turned. And cutting the flange portions 24 and 26.
A central contact surface 2602 having a small diameter and a flat shape is formed near the center of the end surface of the flange portion 26 so as to surround the opening of the waveguide 20, and the periphery of the central contact surface 2602 is formed as a recess 2604. The outer peripheral portion of the end face is formed as an annular flat outer peripheral abutment surface 2606 having the same height as the central abutment surface 2602, and the flange portion 26 is connected to the flange portion of the third waveguide 14 when the flange portion 26 is connected to the flange portion. The portion 26 is in contact with the flange portion of the third waveguide 14 without any gap, and no gap is created around the portion where the waveguide 20 is connected.
Four bolt insertion holes 2608 are formed in the recesses 2604 near the outer periphery of the end face of the flange portion 26, and one knock pin 30 projects in a direction parallel to the axis of the waveguide 20, One long groove 31 is formed so as to extend along the radial direction of the flange portion 26, and an outer end thereof is opened outward in the radial direction of the flange portion 26.

図３に示すように、第２導波管１２は、導波路３２を有する管路部３４と、この管路部３４の両端に設けられフランジ部３６，３８とを有している。
管路部３４は円柱状に形成され、導波路３２は、第１導波管１０の導波路２０と断面が同一形状の矩形に形成され、管路部３４の軸心に沿って管路部３４の全長にわたり直線状に延在し、導波路３２の両端はフランジ部３６，３８に開口している。
フランジ部３６，３８のうち第３導波管１４に連結されるフランジ部３６は、導波路３２の軸心を中心とした半径の円周面４０で形成されている。この円周面４０の作り方は第１導波管１０の場合と同様である。
フランジ部３６の端面の中央寄り箇所には、導波路３２の開口を囲むように小径で平坦な中央当接面３６０２が形成され、この中央当接面３６０２の周囲は凹部３６０４として形成され、また、端面の外周部は中央当接面３６０２と同一の高さの環状で平坦な外周当接面３６０６として形成され、フランジ部３６が第３導波管１４のフランジ部に連結された際にフランジ部３６が第３導波管１４のフランジ部に対して隙間なく当接され導波路３２が接続される部分の周りに隙間が生じないように図られている。
フランジ部３６の端面の外周寄りの凹部３６０４箇所には、４つのボルト挿通孔３６０８が形成され、また、１本のノックピン４２が導波路３２の軸心と平行する方向に突設され、さらに、１つの長溝４３がフランジ部３６の半径方向に沿って延在形成され、その外端はフランジ部３６の半径方向外方に開放されている。 As shown in FIG. 3, the second waveguide 12 has a duct section 34 having a waveguide 32, and flange sections 36 and 38 provided at both ends of the duct section 34.
The pipe section 34 is formed in a cylindrical shape, and the waveguide 32 is formed in a rectangular shape having the same cross section as the waveguide 20 of the first waveguide 10, and the pipe section along the axial center of the pipe section 34. It extends linearly over the entire length of 34, and both ends of the waveguide 32 open to the flange portions 36 and 38.
Of the flange portions 36 and 38, the flange portion 36 connected to the third waveguide 14 is formed by a circumferential surface 40 having a radius centered on the axis of the waveguide 32. The method of making the circumferential surface 40 is the same as that of the first waveguide 10.
A flat central contact surface 3602 having a small diameter is formed at a location near the center of the end surface of the flange portion 36 so as to surround the opening of the waveguide 32, and the periphery of the central contact surface 3602 is formed as a recess 3604. The outer peripheral portion of the end surface is formed as an annular flat outer peripheral abutment surface 3606 having the same height as the central abutment surface 3602, and when the flange portion 36 is connected to the flange portion of the third waveguide 14, a flange is formed. The portion 36 is in contact with the flange portion of the third waveguide 14 without any gap, and no gap is created around the portion where the waveguide 32 is connected.
Four bolt insertion holes 3608 are formed at the concave portion 3604 near the outer periphery of the end surface of the flange portion 36, and one knock pin 42 projects in a direction parallel to the axis of the waveguide 32. One long groove 43 is formed so as to extend along the radial direction of the flange portion 36, and its outer end is opened outward in the radial direction of the flange portion 36.

図４に示すように、第３導波管１４は、導波路４４を有する管路部４６と、この管路部４６の両端に設けられフランジ部４８，５０とを有している。
管路部４６は、その断面が矩形に形成されている。
導波路４４は、第１、第２導波管１０、１２の導波路２０、３２と断面が同一形状の矩形に形成され、管路部４６の軸心に沿って管路部４６の全長にわたり直線状に延在し、導波路４４の両端はフランジ部４８，５０に開口している。
フランジ部４８，５０は、導波路４４の軸心を中心とした半径の円周面５２，５４で形成されている。より詳細には、第１導波管１０のフランジ部２６に連結されるフランジ部４８の円周面５２は、第１導波管１０のフランジ部２６の円周面２８と同一寸法の半径で形成されている。また、第２導波管１２のフランジ部３６に連結されるフランジ部５０の円周面５４は、第２導波管１２のフランジ部３６の円周面４０と同一寸法の半径で形成されている。本実施例では、円周面２８、４０、５２、５４は同一寸法の半径で形成されている。なお、導波路４４の軸心を中心とした半径の円周面５２，５４の作り方は第１導波管１０の場合と同様である。 As shown in FIG. 4, the third waveguide 14 has a duct portion 46 having a waveguide 44, and flange portions 48 and 50 provided at both ends of the duct portion 46.
The pipe section 46 has a rectangular cross section.
The waveguide 44 is formed in a rectangular shape having the same cross-section as the waveguides 20 and 32 of the first and second waveguides 10 and 12, and extends over the entire length of the pipe section 46 along the axis of the pipe section 46. The waveguide 44 extends in a straight line, and both ends of the waveguide 44 open to the flange portions 48 and 50.
The flange portions 48 and 50 are formed by circumferential surfaces 52 and 54 having a radius centered on the axis of the waveguide 44. More specifically, the circumferential surface 52 of the flange portion 48 connected to the flange portion 26 of the first waveguide 10 has a radius of the same dimension as the circumferential surface 28 of the flange portion 26 of the first waveguide 10. Is formed. Further, the circumferential surface 54 of the flange portion 50 connected to the flange portion 36 of the second waveguide 12 is formed with the same radius as the circumferential surface 40 of the flange portion 36 of the second waveguide 12. Yes. In the present embodiment, the circumferential surfaces 28, 40, 52, and 54 are formed with the same radii. The method for forming the circumferential surfaces 52 and 54 having a radius centered on the axis of the waveguide 44 is the same as in the case of the first waveguide 10.

フランジ部４８の端面４８０２は平坦面で形成され、この端面４８０２に、第１導波管１０のフランジ部２６の４つのボルト挿通孔２６０８に対応したねじ孔４８０８が形成されている。
また、端面４８０２の外周寄り箇所にはフランジ部２６のノックピン３０が挿入される長溝５６がフランジ部４８の半径方向に沿って延在形成され、その外端はフランジ部４８の半径方向外方に開放され、さらに、フランジ部２６の長溝３１に挿入されるノックピン５７が導波路４４の軸心と平行する方向に突設されている。
なお、ノックピン３０が長溝５６に挿入され、また、ノックピン５７が長溝３１に挿入されると、ノックピン３０，５７の外周面と、長溝５６，３１を構成する一対の側面とは隙間なく接触し、かつ、隙間なく接触した状態でノックピン３０，５７が長溝５６，３１内でこれら長溝５６，３１の延在方向に沿って移動できる寸法で形成されている。
また、フランジ部５０の端面５００２は平坦面で形成され、この端面５００２に、第２導波管１２のフランジ部３６の４つのボルト挿通孔３６０８に対応したねじ孔５００８が形成されている。
また、端面５００２の外周寄り箇所にはフランジ部３６のノックピン４２が挿入される長溝５８がフランジ部４８の半径方向に沿って延在形成され、その外端はフランジ部５０の半径方向外方に開放され、さらに、フランジ部３６の長溝４３に挿入されるノックピン５９が導波路４４の軸心と平行する方向に突設されている。
なお、ノックピン４２が長溝５８に挿入され、また、ノックピン５９が長溝４３に挿入されると、ノックピン４２，５９の外周面と、長溝５８，４３を構成する一対の側面とは隙間なく接触し、かつ、隙間なく接触した状態でノックピン４２，５９が長溝５８，４３内でこれら長溝５８，４３の延在方向に沿って移動できる寸法で形成されている。
また、フランジ部４８に臨む管路部４６の端部は平坦な端面４６０２として形成され、この端面４６０２は矩形枠状を呈している。同様に、フランジ部５０に臨む管路部４６の端部も平坦な端面４６０４として形成され、この端面４６０４も矩形枠状を呈している。そして、各端面４６０４に４つのねじ孔４６１０がそれぞれ形成されている。 An end surface 4802 of the flange portion 48 is formed as a flat surface, and screw holes 4808 corresponding to the four bolt insertion holes 2608 of the flange portion 26 of the first waveguide 10 are formed in the end surface 4802.
In addition, a long groove 56 into which the knock pin 30 of the flange portion 26 is inserted extends along the radial direction of the flange portion 48 at a location near the outer periphery of the end surface 4802, and its outer end extends outward in the radial direction of the flange portion 48. Further, a knock pin 57 that is opened and inserted into the long groove 31 of the flange portion 26 protrudes in a direction parallel to the axis of the waveguide 44.
When the knock pin 30 is inserted into the long groove 56 and the knock pin 57 is inserted into the long groove 31, the outer peripheral surface of the knock pins 30 and 57 and the pair of side surfaces constituting the long grooves 56 and 31 come into contact with each other without gaps, And the knock pins 30 and 57 are formed in the dimension which can move along the extending direction of these long grooves 56 and 31 in the long grooves 56 and 31 in the state contacted without gap.
Further, the end surface 5002 of the flange portion 50 is formed as a flat surface, and screw holes 5008 corresponding to the four bolt insertion holes 3608 of the flange portion 36 of the second waveguide 12 are formed in the end surface 5002.
Further, a long groove 58 into which the knock pin 42 of the flange portion 36 is inserted is formed extending along the radial direction of the flange portion 48 at a location near the outer periphery of the end surface 5002, and the outer end thereof is radially outward of the flange portion 50. Further, a knock pin 59 that is opened and is inserted into the long groove 43 of the flange portion 36 protrudes in a direction parallel to the axis of the waveguide 44.
When the knock pin 42 is inserted into the long groove 58 and the knock pin 59 is inserted into the long groove 43, the outer peripheral surface of the knock pins 42 and 59 and the pair of side surfaces constituting the long grooves 58 and 43 are in contact with each other without gaps. In addition, the knock pins 42 and 59 are formed in such a dimension that they can move in the long grooves 58 and 43 along the extending direction of the long grooves 58 and 43 in a state where they are in contact with each other without a gap.
Further, the end portion of the conduit portion 46 facing the flange portion 48 is formed as a flat end surface 4602, and the end surface 4602 has a rectangular frame shape. Similarly, the end portion of the conduit portion 46 facing the flange portion 50 is also formed as a flat end surface 4604, and the end surface 4604 also has a rectangular frame shape. And four screw holes 4610 are formed in each end face 4604, respectively.

図５に示すように、位置決め部材１６は、矩形板状のボディ６０を有し、ボディ６０の中央にはボディ６０の厚さ方向に位置決め用孔６２が貫設され、ボディ６０の厚さ方向の両端は平坦な端面６００２として形成されている。
位置決め用孔６２の内周面６２０２は、第１、第２、第３導波管１０，１２，１４の円周面２８，４０，５２，５４と同一寸法の半径で形成されている。
位置決め用孔６２の内周部の半部には、周方向に間隔を置いて２つの弾性片６４が位置決め用孔６２の半径方向に弾性変形可能に形成されている。
弾性片６４は位置決め用孔６２の周方向に沿って延在し、ボディ６０の厚さ方向に貫設された溝６４０２によりその基部を除いた全ての部分が該内周部から切り離されて形成されている。そして、それらの先端が互いに向かい合う向きで配置され、各弾性片６４の内面６４０４は、位置決め用孔６２の内周面６２０２の一部を構成している。 As shown in FIG. 5, the positioning member 16 has a rectangular plate-like body 60, and a positioning hole 62 is provided through the center of the body 60 in the thickness direction of the body 60. Both ends are formed as flat end surfaces 6002.
The inner peripheral surface 6202 of the positioning hole 62 is formed with the same radius as the peripheral surfaces 28, 40, 52, 54 of the first, second, and third waveguides 10, 12, 14.
Two elastic pieces 64 are formed in a half of the inner peripheral portion of the positioning hole 62 so as to be elastically deformable in the radial direction of the positioning hole 62 at intervals in the circumferential direction.
The elastic piece 64 extends along the circumferential direction of the positioning hole 62, and all the portions except the base portion thereof are separated from the inner circumferential portion by a groove 6402 penetrating in the thickness direction of the body 60. Has been. And the front-end | tips are arrange | positioned in the direction which mutually faces, and the inner surface 6404 of each elastic piece 64 comprises a part of inner peripheral surface 6202 of the hole 62 for positioning.

これら２つの弾性片６４は、位置決め用孔６２内にフランジ部２６，３６，４８，５０が挿入された状態で、こららフランジ部２６，３６，４８，５０の円周面２８，４０，５２，５４に弾接し、フランジ部２６，３６，４８，５０を、２つの弾性片６４が設けられた内周面６２０２箇所とは反対の内周面箇所６２０２Ａに当て付けるように形成されている。より詳細には、位置決め用孔６２の形成後に溝６４０２が形成され、この溝６４０２により弾性片６４の基部を除いた弾性片６４の全ての部分がボディ６０から切り離され、弾性片６４が内周面６２０２の半径方向内方に変位しており、したがって、位置決め用孔６２内にフランジ部２６，３６，４８，５０が挿入されると、各弾性片６４は円周面２８，４０，５２，５４に弾接し、フランジ部２６，３６，４８，５０を内周面箇所６２０２Ａに当て付けることになる。
位置決め用孔６２の周囲のボディ６０の４箇所には、第３導波管１４の各端面４６０４の４つのねじ孔４６１０に対応するようにボルト挿通孔６００４が形成されている。 These two elastic pieces 64 have the circumferential surfaces 28, 40, 52 of the flange portions 26, 36, 48, 50 in a state where the flange portions 26, 36, 48, 50 are inserted into the positioning holes 62. , 54, and the flange portions 26, 36, 48, 50 are formed so as to abut on the inner peripheral surface portion 6202A opposite to the inner peripheral surface portion 6202 where the two elastic pieces 64 are provided. More specifically, a groove 6402 is formed after the positioning hole 62 is formed, and all the portions of the elastic piece 64 except the base portion of the elastic piece 64 are separated from the body 60 by the groove 6402 so that the elastic piece 64 is formed on the inner periphery. Therefore, when the flange portions 26, 36, 48, 50 are inserted into the positioning holes 62, the elastic pieces 64 are arranged on the circumferential surfaces 28, 40, 52,. 54, and the flange portions 26, 36, 48 and 50 are brought into contact with the inner peripheral surface portion 6202A.
Bolt insertion holes 6004 are formed at four positions of the body 60 around the positioning hole 62 so as to correspond to the four screw holes 4610 of each end surface 4604 of the third waveguide 14.

次に、２つの位置決め部材１６を用いて、第１、第２、第３導波管１０、１２，１４を連結する手順について説明する。
まず、第３導波管１４の各フランジ部４８，５０がそれぞれ位置決め用孔６２に入るように、第３導波管１４に２つの位置決め部材１６を組み込み、位置決め部材１６の端面６００２を管路部４６の端面４６０２、４６０４に当て付ける。
この位置決め部材１６の組み込みにより、各弾性片６４は第３導波管１４の円周面５２，５４から反力を受け、位置決め部材１６自体が、円周面箇所６２０２Ａが円周面５２，５４に当て付けられるように位置決め用孔６２の半径方向に変位し、円周面箇所６２０２Ａが円周面５２，５４に当て付けられる。
そしてこの状態で、ボルトＢ１をボルト挿通孔６００４を通してねじ孔４６１０に螺合し、位置決め部材１６を端面４６０２に締め付け固定する。 Next, a procedure for connecting the first, second, and third waveguides 10, 12, and 14 using the two positioning members 16 will be described.
First, the two positioning members 16 are incorporated in the third waveguide 14 so that the flange portions 48 and 50 of the third waveguide 14 enter the positioning holes 62, respectively, and the end surface 6002 of the positioning member 16 is connected to the pipe line. It is applied to the end surfaces 4602 and 4604 of the portion 46.
By incorporating the positioning member 16, each elastic piece 64 receives a reaction force from the circumferential surfaces 52 and 54 of the third waveguide 14, and the positioning member 16 itself has a circumferential surface location 6202 A of the circumferential surfaces 52 and 54. Is displaced in the radial direction of the positioning hole 62 so that the circumferential surface portion 6202A is applied to the circumferential surfaces 52 and 54.
In this state, the bolt B1 is screwed into the screw hole 4610 through the bolt insertion hole 6004, and the positioning member 16 is fastened and fixed to the end surface 4602.

次に、第３導波管１４のフランジ部４８にフランジ部２６が対向するように、第１導波管１０のフランジ部２６を位置決め部材１６の位置決め用孔６２に挿入し、ノックピン３０,５７を長溝５６,３１に挿入させ、フランジ部２６の中央当接面２６０２および外周当接面２６０６を端面４８０２に当接する。
フランジ部２６の位置決め用孔６２への挿入により、位置決め用孔６２内において、フランジ部２６の円周面２８が各弾性片６４から弾性力を受け、フランジ部２６自体が、円周面箇所６２０２Ａに当て付けられるように位置決め用孔６２の半径方向に変位し、各弾性片６４が位置する側とは反対の側の円周面２８の箇所が円周面箇所６２０２Ａに当て付けられる。これにより、円周面２８、５２の中心が合致され、位置決め用孔６２を介して導波路２０と導波路４４の軸心が合致される。 Next, the flange portion 26 of the first waveguide 10 is inserted into the positioning hole 62 of the positioning member 16 so that the flange portion 26 faces the flange portion 48 of the third waveguide 14, and the knock pins 30, 57 are inserted. Are inserted into the long grooves 56 and 31, and the central contact surface 2602 and the outer peripheral contact surface 2606 of the flange portion 26 are in contact with the end surface 4802.
By inserting the flange portion 26 into the positioning hole 62, the circumferential surface 28 of the flange portion 26 receives an elastic force from each elastic piece 64 in the positioning hole 62, and the flange portion 26 itself is the circumferential surface portion 6202A. The position of the circumferential surface 28 on the side opposite to the side where each elastic piece 64 is located is applied to the circumferential surface location 6202A. Thereby, the centers of the circumferential surfaces 28 and 52 are matched, and the axes of the waveguide 20 and the waveguide 44 are matched via the positioning hole 62.

そして、円周面２８の箇所が円周面箇所６２０２Ａに当て付けられる際に、ノックピン３０,５７が長溝５６,３１内で移動するので、上記の当て付けが確実になされ、導波路２０と導波路４４の軸心が合致される。
また、ノックピン３０,５７が長溝５６,３１に挿入されることにより、円周面２８、５２の周方向における導波路２０、４４の姿勢が合致される。この場合、ノックピン３０,５７および長溝５６,３１は導波路２０、４４から離れたフランジ部２６，４８の外周寄りに位置しているので、ノックピン３０,５７および長溝５６,３１の精度誤差が導波路２０、４４の軸心周りの位置決めに及ぼす影響は極めて微小となり、生じる伝播損失も極めて微小量に留めることができる。
そしてこの状態で、ボルトＢ２をボルト挿通孔２６０８を通してねじ孔４８０８に螺合し、中央当接面２６０２および外周当接面２６０６を端面４８０２に締め付けて第１導波管１０を第３導波管１４に固定する。 When the location of the circumferential surface 28 is applied to the circumferential location 6202A, the knock pins 30 and 57 move within the long grooves 56 and 31, so that the above-described application is ensured and the waveguide 20 and the waveguide 20 are guided. The axis of the waveguide 44 is matched.
Further, by inserting the knock pins 30 and 57 into the long grooves 56 and 31, the postures of the waveguides 20 and 44 in the circumferential direction of the circumferential surfaces 28 and 52 are matched. In this case, since the knock pins 30, 57 and the long grooves 56, 31 are located near the outer periphery of the flange portions 26, 48 away from the waveguides 20, 44, accuracy errors of the knock pins 30, 57 and the long grooves 56, 31 are introduced. The influence on the positioning of the waveguides 20 and 44 around the axis is extremely small, and the generated propagation loss can be kept extremely small.
In this state, the bolt B2 is screwed into the screw hole 4808 through the bolt insertion hole 2608, the center contact surface 2602 and the outer peripheral contact surface 2606 are tightened to the end surface 4802, and the first waveguide 10 is connected to the third waveguide. 14 is fixed.

同様に、第３導波管１４のフランジ部５０にフランジ部３６が対向するように、第２導波管１２のフランジ部３６を位置決め部材１６の位置決め用孔６２に挿入し、ノックピン４２,５９を長溝５８,４３に挿入させ、フランジ部３６の中央当接面３６０２および外周当接面３６０６を端面５００２に当接する。
フランジ部３６の位置決め用孔６２への挿入により、位置決め用孔６２内において、フランジ部３６の円周面４０が各弾性片６４から弾性力を受け、フランジ部３６自体が、円周面箇所６２０２Ａに当て付けられるように位置決め用孔６２の半径方向に変位し、各弾性片６４が位置する側とは反対の側の円周面４０の箇所が円周面箇所６２０２Ａに当て付けられる。これにより、円周面４０、５４の中心が合致され、位置決め用孔６２を介して導波路３２と導波路４４の軸心が合致される。そして、円周面４０の箇所が円周面箇所６２０２Ａに当て付けられる際に、ノックピン４２,５９が長溝５８,４３内で移動するので、上記の当て付けが確実になされ、導波路３２と導波路４４の軸心が合致される。 Similarly, the flange portion 36 of the second waveguide 12 is inserted into the positioning hole 62 of the positioning member 16 so that the flange portion 36 faces the flange portion 50 of the third waveguide 14, and the knock pins 42, 59 are inserted. Are inserted into the long grooves 58 and 43, and the center contact surface 3602 and the outer peripheral contact surface 3606 of the flange portion 36 are in contact with the end surface 5002.
By inserting the flange portion 36 into the positioning hole 62, the circumferential surface 40 of the flange portion 36 receives the elastic force from each elastic piece 64 in the positioning hole 62, and the flange portion 36 itself becomes the circumferential surface portion 6202A. The position of the circumferential surface 40 on the side opposite to the side where each elastic piece 64 is located is applied to the circumferential surface location 6202A. As a result, the centers of the circumferential surfaces 40 and 54 are matched, and the axes of the waveguide 32 and the waveguide 44 are matched via the positioning hole 62. When the location of the circumferential surface 40 is applied to the circumferential location 6202A, the knock pins 42 and 59 move within the long grooves 58 and 43, so that the above-described application is ensured and the waveguide 32 and the waveguide 32 are guided. The axis of the waveguide 44 is matched.

また、ノックピン４２,５９が長溝５８,４３に挿入されることにより、円周面４０、５４の周方向における導波路３２、４４の姿勢が合致される。この場合、ノックピン４２,５９および長溝５８,４３は導波路３２、４４から離れたフランジ部３６，５０の外周寄りに位置しているので、ノックピン４２,５９および長溝５８,４３の精度誤差が導波路３２、４４の軸心周りの位置決めに及ぼす影響は極めて微小となり、生じる伝播損失も極めて微小量に留めることができる。
そしてこの状態で、ボルトＢ３をボルト挿通孔３６０８を通してねじ孔５００８に螺合し、中央当接面３６０２および外周当接面３６０６を端面５００２に締め付けて第２導波管１２を第３導波管１４に固定する。 Further, by inserting the knock pins 42 and 59 into the long grooves 58 and 43, the postures of the waveguides 32 and 44 in the circumferential direction of the circumferential surfaces 40 and 54 are matched. In this case, since the knock pins 42 and 59 and the long grooves 58 and 43 are located near the outer periphery of the flange portions 36 and 50 away from the waveguides 32 and 44, accuracy errors of the knock pins 42 and 59 and the long grooves 58 and 43 are introduced. The influence on the positioning of the waveguides 32 and 44 around the axial center is extremely small, and the generated propagation loss can be kept extremely small.
In this state, the bolt B3 is screwed into the screw hole 5008 through the bolt insertion hole 3608, the central contact surface 3602 and the outer peripheral contact surface 3606 are tightened to the end surface 5002, and the second waveguide 12 is connected to the third waveguide. 14 is fixed.

したがって、第１導波管１０と第３導波管１４とは、第１導波管１０のフランジ部２６の円周面２８と、第３導波管１４のフランジ部４８の円周面５２とを基準としてフランジ部２６、４８が合わされるので、言い換えると、位置決め部材１６の位置決め用孔６２内において弾性片６４により、各導波管１０，１４のフランジ部２６，４８の円周面２８，５２が仮想の同一円周面上で隣り合うように合致されてフランジ部２６，４８が合わせられるので、第１導波管１０の導波路２０と第３導波管１４の導波路４４の軸心が合致される
また、ノックピン３０,５７が長溝５６,３１に挿入されることにより、円周面２８、５２の周方向における第１、第３導波管１０，１４の導波路２０、４４の姿勢が合致され、る２つの導波路２０，４４の軸心回りについての位置決めが行なわれる。
したがって、第１、第３導波管１０，１４の導波路２０、４４の軸心が合致され、かつ、それらの軸心回りの姿勢が合致された状態で連結される。 Therefore, the first waveguide 10 and the third waveguide 14 include the circumferential surface 28 of the flange portion 26 of the first waveguide 10 and the circumferential surface 52 of the flange portion 48 of the third waveguide 14. The flange portions 26 and 48 are combined with each other as a reference. In other words, the circumferential surface 28 of the flange portions 26 and 48 of the waveguides 10 and 14 is formed by the elastic piece 64 in the positioning hole 62 of the positioning member 16. , 52 are matched so as to be adjacent to each other on the same virtual circumferential surface, and the flange portions 26, 48 are matched, so that the waveguide 20 of the first waveguide 10 and the waveguide 44 of the third waveguide 14 are aligned. The axial centers are matched. Further, by inserting the knock pins 30 and 57 into the long grooves 56 and 31, the waveguides 20 of the first and third waveguides 10 and 14 in the circumferential direction of the circumferential surfaces 28 and 52, 44 axes are matched, and the axes of the two waveguides 20 and 44 Positioning of around is performed.
Therefore, the waveguides 20 and 44 of the first and third waveguides 10 and 14 are connected in a state in which the axes of the waveguides 20 and 44 are matched and the postures around the axes are matched.

同様に、第２導波管１２と第３導波管１４とは、第２導波管１２のフランジ部３６の円周面４０と、第３導波管１４のフランジ部５０の円周面５４とを基準としてフランジ部３６，５０が合わされるので、言い換えると、位置決め部材１６の位置決め用孔６２内において弾性片６４により、各導波管１２，１４のフランジ部３６，５０の円周面４０、５４が仮想の同一円周面上で隣り合うように合致されてフランジ部３６，５０が合わせられるので、第２導波管１２の導波路３２と第３導波管１４の導波路４４の軸心が合致される
また、ノックピン４２,５９が長溝５８,４３に挿入されることにより、円周面４０、５４の周方向における第２、第３導波管１２，１４の導波路３２、４４の姿勢が合致され、る２つの導波路３２，４４の軸心回りについての位置決めが行なわれる。
そして、ノックピン３０，５７，４２，５９および長溝５６、３１，５８，４３は導波路３２、４４の軸心から離れていることから、ノックピン３０，５７，４２，５９および長溝５６、３１，５８，４３の精度誤差が導波路３２、４４の軸心周りの位置決めに及ぼす影響は極めて微小となり、生じる伝播損失も極めて微小量に留めることができる。
したがって、本実施例によれば、第１乃至第３導波管１０，１２，１４の導波路２０，３２、４４の軸心が合致され、かつ、それらの軸心回りの姿勢が合致された状態で連結されるので、２本のノックピン、２つの位置決め孔を用いた従来の導波管の接続方法、接続構造に比べ、伝播損失を格段と減少させることができる。 Similarly, the second waveguide 12 and the third waveguide 14 are the circumferential surface 40 of the flange portion 36 of the second waveguide 12 and the circumferential surface of the flange portion 50 of the third waveguide 14. 54, the flange portions 36 and 50 are combined with each other. In other words, the elastic pieces 64 in the positioning holes 62 of the positioning member 16 cause the circumferential surfaces of the flange portions 36 and 50 of the waveguides 12 and 14 to be aligned. 40 and 54 are matched so as to be adjacent to each other on the same virtual circumferential surface, and the flange portions 36 and 50 are matched, so that the waveguide 32 of the second waveguide 12 and the waveguide 44 of the third waveguide 14 are combined. Further, by inserting the knock pins 42 and 59 into the long grooves 58 and 43, the waveguides 32 of the second and third waveguides 12 and 14 in the circumferential direction of the circumferential surfaces 40 and 54 are obtained. , 44 are matched, and the axis of rotation of the two waveguides 32, 44 is aligned. Positioning for is carried out.
Since the knock pins 30, 57, 42, 59 and the long grooves 56, 31, 58, 43 are separated from the axial center of the waveguides 32, 44, the knock pins 30, 57, 42, 59 and the long grooves 56, 31, 58 are provided. , 43 has an extremely small influence on the positioning of the waveguides 32 and 44 around the axis, and the generated propagation loss can be kept to a very small amount.
Therefore, according to this embodiment, the axes of the waveguides 20, 32 and 44 of the first to third waveguides 10, 12, and 14 are matched, and the postures around those axes are matched. Since they are connected in a state, propagation loss can be remarkably reduced as compared with the conventional waveguide connection method and connection structure using two knock pins and two positioning holes.

次に、実施例２について説明する。
図６は三つの導波管が連結された状態の要部断面正面図、図７は図６のＡＡ断面における位置決め部材部分を示している。
以下、実施例１と同一の箇所、部材に同一の符号を付して説明すると、第１導波管１０と第２導波管１２とが第３導波管１４を挟んで連結され、この実施例ではこれらの連結に２つの位置決め部材７０が用いられている。
第１乃至第３導波管１０，１２，１４の構成は前記実施例と同様である。
位置決め部材７０は、環板状のボディ７２を有し、ボディ７２の中央にはボディ７２の厚さ方向に位置決め用孔７４が貫設され、ボディ７２の厚さ方向の両端は平坦な端面７２０２として形成されている。
位置決め用孔７４の内周面７４０２は、第１、第２、第３導波管１０，１２，１４の円周面２８，４０，５２，５４と同一寸法の半径で形成されている。
ボディ７２の一部には、位置決め用孔７４の半径方向に延在してボディ７２の厚さ方向に貫通する溝７６が形成され、この溝７６により、位置決め用孔７４の半部には（あるいはボディ７２の半部には）、周方向に間隔を置いて２つの弾性片７８が位置決め用孔７４の半径方向に弾性変形可能に形成され、また、溝７６に対向する位置決め用孔７４の箇所は位置決め用孔７４の内周面箇所７４０２Ａとして残存している。
各弾性片７８の内面７８０２は、位置決め用孔７４の内周面７４０２の一部を構成し、各弾性片７８のうちの一方の先部にはボルト挿通孔７８０４が形成され、他方にはねじ孔７８０６が形成されている。 Next, Example 2 will be described.
FIG. 6 is a sectional front view of a main part in a state where three waveguides are connected, and FIG. 7 shows a positioning member portion in the AA section of FIG.
Hereinafter, the same portions and members as in the first embodiment will be described with the same reference numerals, and the first waveguide 10 and the second waveguide 12 are connected with the third waveguide 14 interposed therebetween. In the embodiment, two positioning members 70 are used for these connections.
The configurations of the first to third waveguides 10, 12, and 14 are the same as those in the above embodiment.
The positioning member 70 has an annular plate-like body 72, and a positioning hole 74 is provided in the center of the body 72 in the thickness direction of the body 72, and both ends of the body 72 in the thickness direction are flat end surfaces 7202. It is formed as.
The inner peripheral surface 7402 of the positioning hole 74 is formed with a radius having the same dimensions as the peripheral surfaces 28, 40, 52, 54 of the first, second, and third waveguides 10, 12, 14.
A groove 76 extending in the radial direction of the positioning hole 74 and penetrating in the thickness direction of the body 72 is formed in a part of the body 72, and the groove 76 allows ( Alternatively, in the half portion of the body 72, two elastic pieces 78 are formed so as to be elastically deformable in the radial direction of the positioning hole 74 at intervals in the circumferential direction, and the positioning hole 74 facing the groove 76. The portion remains as an inner peripheral surface portion 7402A of the positioning hole 74.
The inner surface 7802 of each elastic piece 78 constitutes a part of the inner peripheral surface 7402 of the positioning hole 74, and a bolt insertion hole 7804 is formed at one tip of each elastic piece 78, and the other is a screw. A hole 7806 is formed.

次に、２つの位置決め部材７０を用いて、第１、第２、第３導波管１０、１２，１４を連結する手順について説明する。
まず、第１導波管１０のフランジ部２６を第３導波管１４のフランジ部４８に対向させ、ノックピン３０,５７を長溝５６,３１に挿入させ、フランジ部２６の中央当接面２６０２および外周当接面２６０６を端面４８０２に当接する。
次に、フランジ部２６の円周面２８と、フランジ部４８の円周面５２とにわたって位置決め部材７０を装着し、位置決め用孔７４内に円周面２８，５２を位置させ、位置決め部材７０の端面７２０２を第３導波管１４の端面４６０２に当接する。
次に、一方の弾性片７８のボルト挿通孔７８０４に挿通したボルトＢ４を、他方の弾性片７８のねじ孔７８０６に螺合し、ボルトＢ４を締め付ける。
このボルトＢ４の締め付けにより位置決め用孔７４内において、フランジ部２６，４８の円周面２８，５２が各弾性片７８により締め付けられ、内周面箇所７４０２Ａに当て付けられる。 Next, a procedure for connecting the first, second, and third waveguides 10, 12, and 14 using the two positioning members 70 will be described.
First, the flange portion 26 of the first waveguide 10 is opposed to the flange portion 48 of the third waveguide 14, the knock pins 30 and 57 are inserted into the long grooves 56 and 31, and the center contact surface 2602 of the flange portion 26 and The outer peripheral contact surface 2606 is in contact with the end surface 4802.
Next, the positioning member 70 is mounted over the circumferential surface 28 of the flange portion 26 and the circumferential surface 52 of the flange portion 48, the circumferential surfaces 28 and 52 are positioned in the positioning hole 74, and the positioning member 70 The end surface 7202 is in contact with the end surface 4602 of the third waveguide 14.
Next, the bolt B4 inserted into the bolt insertion hole 7804 of one elastic piece 78 is screwed into the screw hole 7806 of the other elastic piece 78, and the bolt B4 is tightened.
By tightening the bolt B4, the circumferential surfaces 28, 52 of the flange portions 26, 48 are tightened by the respective elastic pieces 78 in the positioning hole 74 and applied to the inner peripheral surface portion 7402A.

この場合、円周面２８、５２の箇所が円周面箇所７４０２Ａに当て付けられる際に、ノックピン３０,５７が長溝５６,３１内で移動するので、上記の当て付けが確実になされ、導波路２０と導波路４４の軸心が合致される。
また、ノックピン３０,５７が長溝５６,３１に挿入されることにより、円周面２８、５２の周方向における導波路２０、４４の姿勢が合致される。この場合、ノックピン３０，５７および長溝５６,３１の精度誤差が導波路２２、４４の軸心周りの位置決めに及ぼす影響は極めて微小となり、生じる伝播損失も極めて微小量に留めることができる。
そしてこの状態で、ボルトＢ２をボルト挿通孔２６０８を通してねじ孔４８０８に螺合し、中央当接面２６０２および外周当接面２６０６を端面４８０２に締め付けて第１導波管１０を第３導波管１４に固定する。 In this case, when the locations of the circumferential surfaces 28 and 52 are applied to the circumferential location 7402A, the knock pins 30 and 57 move within the long grooves 56 and 31, so that the above-described application is ensured, and the waveguide 20 and the axis of the waveguide 44 are matched.
Further, by inserting the knock pins 30 and 57 into the long grooves 56 and 31, the postures of the waveguides 20 and 44 in the circumferential direction of the circumferential surfaces 28 and 52 are matched. In this case, the influence of the accuracy errors of the knock pins 30 and 57 and the long grooves 56 and 31 on the positioning of the waveguides 22 and 44 around the axial center is extremely small, and the generated propagation loss can be kept very small.
In this state, the bolt B2 is screwed into the screw hole 4808 through the bolt insertion hole 2608, the center contact surface 2602 and the outer peripheral contact surface 2606 are tightened to the end surface 4802, and the first waveguide 10 is connected to the third waveguide. 14 is fixed.

同様に、第２導波管１２のフランジ部３６を第３導波管１４のフランジ部５０に対向させ、ノックピン４２,５９を長溝５８,４３に挿入させ、フランジ部３６の中央当接面３６０２および外周当接面３６０６を端面５００２に当接し、フランジ部３６の円周面４０と、フランジ部５０の円周面５４とにわたって位置決め部材７０を装着し、位置決め用孔７４内に円周面４０，５４を位置させ、位置決め部材７０の端面７２０２を第３導波管１４の端面４６０４に当接する。
次に、一方の弾性片７８のボルト挿通孔７８０４に挿通したボルトＢ４を、他方の弾性片７８のねじ孔７８０６に螺合し、ボルトＢ４を締め付ける。
このボルトＢ４の締め付けにより位置決め用孔７４内において、フランジ部３６，５０の円周面４０，５４が各弾性片７８により締め付けられ、内周面箇所７４０２Ａに当て付けられる。 Similarly, the flange portion 36 of the second waveguide 12 is opposed to the flange portion 50 of the third waveguide 14, the knock pins 42 and 59 are inserted into the long grooves 58 and 43, and the center abutment surface 3602 of the flange portion 36. The outer peripheral contact surface 3606 is in contact with the end surface 5002, the positioning member 70 is mounted over the circumferential surface 40 of the flange portion 36 and the circumferential surface 54 of the flange portion 50, and the circumferential surface 40 is placed in the positioning hole 74. , 54 are positioned, and the end surface 7202 of the positioning member 70 is brought into contact with the end surface 4604 of the third waveguide 14.
Next, the bolt B4 inserted into the bolt insertion hole 7804 of one elastic piece 78 is screwed into the screw hole 7806 of the other elastic piece 78, and the bolt B4 is tightened.
By tightening the bolt B4, the circumferential surfaces 40, 54 of the flange portions 36, 50 are tightened by the elastic pieces 78 in the positioning hole 74, and applied to the inner peripheral surface portion 7402A.

この場合、円周面４０，５４の箇所が円周面箇所７４０２Ａに当て付けられる際に、ノックピン４２,５９が長溝５８,４３内で移動するので、上記の当て付けが確実になされ、導波路３２と導波路４４の軸心が合致される。
また、ノックピン４２,５９が長溝５８,４３に挿入されることにより、円周面４０，５４の周方向における導波路３２，４４の姿勢が合致される。この場合、ノックピン４２,
５９および長溝５８,４３は導波路３２，４４の軸心から離れたフランジ部３６，５０の外周寄りに位置しているので、ノックピン４２,５９および長溝５８,４３の精度誤差が導波路３２、４４の軸心周りの位置決めに及ぼす影響は極めて微小となり、生じる伝播損失も極めて微小量に留めることができる。
そしてこの状態で、ボルトＢ３をボルト挿通孔３６０８を通してねじ孔５００８に螺合し、中央当接面３６０２および外周当接面３６０６を端面５００２に締め付けて第２導波管１０を第３導波管１４に固定する。
なお、実施例２では、ボルトＢ２、Ｂ３により第１、第２、第３導波管１０，１２，１４を連結したならば、位置決め部材７０は第１、第２、第３導波管１０，１２，１４から取り外してもよく、あるいは、装着したままとしてもよい。
実施例２によっても実施例１と同様に、第１乃至第３導波管１０，１２，１４の導波路２０、３２、４４の軸心が合致され、かつ、それらの軸心回りの姿勢が合致された状態で連結されるので、２本のノックピンおよび２つの位置決め孔を用いた従来の導波管の接続方法、接続構造に比べ、伝播損失を格段と減少させることができる。 In this case, when the locations of the circumferential surfaces 40 and 54 are applied to the circumferential surface location 7402A, the knock pins 42 and 59 move within the long grooves 58 and 43, so that the above-described application is ensured, and the waveguide 32 and the axis of the waveguide 44 are matched.
Further, by inserting the knock pins 42 and 59 into the long grooves 58 and 43, the postures of the waveguides 32 and 44 in the circumferential direction of the circumferential surfaces 40 and 54 are matched. In this case, the knock pin 42,
59 and the long grooves 58 and 43 are positioned near the outer periphery of the flange portions 36 and 50 away from the axial centers of the waveguides 32 and 44. Therefore, the accuracy errors of the knock pins 42 and 59 and the long grooves 58 and 43 are the waveguide 32, The influence on the positioning around the axis 44 is extremely small, and the propagation loss generated can be kept to a very small amount.
In this state, the bolt B3 is screwed into the screw hole 5008 through the bolt insertion hole 3608, the central contact surface 3602 and the outer peripheral contact surface 3606 are fastened to the end surface 5002, and the second waveguide 10 is connected to the third waveguide. 14 is fixed.
In the second embodiment, if the first, second, and third waveguides 10, 12, and 14 are connected by the bolts B2 and B3, the positioning member 70 is the first, second, and third waveguides 10. , 12 and 14 or may remain attached.
Also in the second embodiment, as in the first embodiment, the axes of the waveguides 20, 32, and 44 of the first to third waveguides 10, 12, and 14 are matched, and the postures around these axes are the same. Since they are connected in a matched state, the propagation loss can be remarkably reduced as compared with the conventional waveguide connection method and connection structure using two knock pins and two positioning holes.

なお、実施例１，２では、各導波管のフランジ部の円周面を、仮想の円周面上に位置するように合わせるに際して、前記円周面の形状に合致した形状の内周面箇所を有する位置決め部材を用いた場合について説明したが、前記内周面箇所を有する位置決め部材は必ずしも必要ではなく、各導波管のフランジ部の円周面を、単一の部材あるいは複数の部材でそれら円周面の半径方向内方に締め付けることでも各導波管の導波路の軸心を合致させることができる。
例えば、図８（Ａ）に示すように断面が三角形の枠状を呈しその一部に開放部８０Ａを有する締め付け部材８０を設け、二つの導波管のフランジ部の円周面を締め付け部材８０で挟み、開放部８０Ａに配設したボルトＢ、ナットＮにより二つの導波管のフランジ部の円周面を締め付けるようにしてもよい。 In Examples 1 and 2, when matching the circumferential surface of the flange portion of each waveguide so as to be positioned on the virtual circumferential surface, the inner circumferential surface of the shape that matches the shape of the circumferential surface Although the case where the positioning member having the location is used has been described, the positioning member having the location on the inner peripheral surface is not necessarily required, and the circumferential surface of the flange portion of each waveguide may be a single member or a plurality of members. The axial centers of the waveguides of the respective waveguides can be matched by tightening inward in the radial direction of the circumferential surfaces.
For example, as shown in FIG. 8A, a fastening member 80 having a triangular frame shape in cross section and having an open portion 80A is provided in a part thereof, and the circumferential surfaces of the flange portions of the two waveguides are provided on the fastening member 80. The circumferential surfaces of the flange portions of the two waveguides may be tightened by bolts B and nuts N disposed between the open portions 80A.

あるいは、図８（Ｂ）に示すように断面が凹字状を呈する二つの締め付け片８２，８４がヒンジ８６で連結されて構成された締め付け部材８８を設け、二つの導波管のフランジ部の円周面をこれら締め付け片８２，８４で挟み、締め付け片８２，８４の先端に配設したボルトＢ、ナットＮにより二つの導波管のフランジ部の円周面を締め付けるようにしてもよい。
なお、図８（Ａ）、（Ｂ）の締め付け部材８０，８８を用いる場合には、二つの導波管を連結した後、これら締め付け部材８０，８８を取り外してもよく、あるいは、装着したままとしてもよい。
また、実施例１、２では、２つの導波管の導波路の軸心回りについての位置決めを、ノックピンと長溝とを用いて行なった場合について説明したが、例えば、各導波管のフランジ部の円周面に該円周面の半径方向外方に開放状の溝を形成しておき、これらの溝にキーを挿入することによっても２つの導波管の導波路の軸心回りについての位置決めを行なうことが可能であり、２つの導波管の導波路の軸心回りについての位置決め手段はノックピンと長溝とに限定されない。
また、実施例１、２では、２つの導波管を連結するに際して、ノックピンと長溝を、２つの導波管の各フランジ部にそれぞれ設けた場合について説明したが、２つの導波管のフランジ部の一方にノックピンを、他方の導波管のフランジ部に該フランジ部の半径方向に沿って延在し前記ノックピンが挿入される長溝を設けるようにしてもよい。ただし、２つの導波管のフランジ部の一方にノックピンを、他方の導波管のフランジ部に長溝を設けるようにすると、例えば、ピンが突設されたフランジ部どうしを連結しなければならず、あるいは、長溝が形成されたフランジ部どうしを連結しなければならない不具合が生じることが考えられるが、実施例１，２のようにノックピンと長溝を、２つの導波管の各フランジ部にそれぞれ設けておくと、このような不具合はなく、ノックピンが長溝に常に挿入されて連結される。 Alternatively, as shown in FIG. 8B, there is provided a fastening member 88 formed by connecting two fastening pieces 82 and 84 having a concave shape in cross section with a hinge 86, and the flange portions of the two waveguides. The circumferential surfaces may be sandwiched between the fastening pieces 82 and 84, and the circumferential surfaces of the flange portions of the two waveguides may be fastened by bolts B and nuts N arranged at the tips of the fastening pieces 82 and 84.
When the fastening members 80 and 88 shown in FIGS. 8A and 8B are used, the fastening members 80 and 88 may be removed after the two waveguides are connected, or may remain attached. It is good.
In the first and second embodiments, the case where the positioning of the two waveguides around the axis of the waveguide is performed using a knock pin and a long groove. For example, the flange portion of each waveguide is described. Also, open grooves are formed on the circumferential surface of the circumferential surface of the circumferential surface in the radial direction, and a key is inserted into these grooves, so that the axis around the waveguide axis of the two waveguides can be reduced. Positioning can be performed, and the positioning means about the axis of the waveguide of the two waveguides is not limited to the knock pin and the long groove.
In the first and second embodiments, the case where the knock pins and the long grooves are provided in the flange portions of the two waveguides when the two waveguides are connected has been described. A knock pin may be provided in one of the portions, and a long groove may be provided in the flange portion of the other waveguide along the radial direction of the flange portion and into which the knock pin is inserted. However, if a knock pin is provided in one of the flange portions of the two waveguides and a long groove is provided in the flange portion of the other waveguide, for example, the flange portions protruding from the pins must be connected to each other. Alternatively, there may be a problem that the flange portions in which the long grooves are formed must be connected to each other. However, as in the first and second embodiments, the knock pins and the long grooves are respectively provided in the flange portions of the two waveguides. If provided, there is no such inconvenience, and the knock pin is always inserted and connected to the long groove.

三つの導波管が連結された状態の正面図である。It is a front view in the state where three waveguides were connected. 第１導波管の説明図である。It is explanatory drawing of a 1st waveguide. 第２導波管の説明図である。It is explanatory drawing of a 2nd waveguide. 第４導波管の説明図である。It is explanatory drawing of a 4th waveguide. 位置決め部材の説明図である。It is explanatory drawing of a positioning member. 三つの導波管が連結された状態の正面図である。It is a front view in the state where three waveguides were connected. 三つの導波管が連結された状態の側面図である。It is a side view of the state where three waveguides were connected. 締め付け部材の説明図である。It is explanatory drawing of a fastening member.

符号の説明Explanation of symbols

１０……第１導波管、１２……第２導波管、１４……第３導波管、１６，７０……位置決め部材、２０，３２，４４……導波路、２８，４０，５２，５４……円周面、３０，４２，５７，５９……ノックピン、３１，４３，５６，５８……長溝、８０，８８……締め付け部材。   DESCRIPTION OF SYMBOLS 10 ... 1st waveguide, 12 ... 2nd waveguide, 14 ... 3rd waveguide, 16, 70 ... Positioning member, 20, 32, 44 ... Waveguide, 28, 40, 52 54, circumferential surface, 30, 42, 57, 59 ... knock pin, 31, 43, 56, 58 ... long groove, 80, 88 ... fastening member.

Claims (12)

導波路を有する管路部と、この管路部の端部に設けられ前記導波路が開口するフランジ部とを有する２つの導波管を、それらのフランジ部の端面を合わせそれらフランジ部を連結することで２つの導波管の導波路を接続する方法であって、
前記各導波管のフランジ部にそれぞれそれらの導波路の軸心を中心とした同一半径の円周面を設け、
前記各導波管のフランジ部の一方にノックピンを、他方に該フランジ部の半径方向に沿って延在する長溝を設け、
前記フランジ部の端面を合わせる際に、２つの導波管のフランジ部の円周面を、前記半径を有する仮想の円周面上に位置させることで各導波管の導波路の軸心を合致させ、前記ノックピンを前記長溝に挿入することで２つの導波管の導波路の軸心回りについての位置決めを行なうようにした、
ことを特徴とする導波管の接続方法。 Two waveguides having a pipe part having a waveguide and a flange part provided at an end part of the pipe part and having the waveguide open to each other are aligned with the end faces of the flange parts, and the flange parts are connected to each other. By connecting the waveguides of two waveguides,
The flange portion of each waveguide is provided with a circumferential surface having the same radius around the axis of each waveguide,
A knock pin is provided on one of the flange portions of each waveguide, and a long groove extending along the radial direction of the flange portion is provided on the other.
When aligning the end faces of the flange portions, the circumferential surfaces of the flange portions of the two waveguides are positioned on a virtual circumferential surface having the radius so that the waveguide axes of the respective waveguides are aligned. It was made to match, and it was made to position about the axis center of the waveguide of two waveguides by inserting the knock pin into the long slot.
A waveguide connection method characterized by the above. 前記ノックピン及び長溝は、前記フランジ部の外周寄りの箇所に設けられていることを特徴とする請求項１記載の導波管の接続方法。   The waveguide connection method according to claim 1, wherein the knock pin and the long groove are provided at positions near the outer periphery of the flange portion. 前記円周面と同一寸法の内径を有して周方向に沿って延在する内周面箇所を有する位置決め部材が設けられ、２つの導波管のフランジ部の円周面を前記位置決め部材の内周面箇所に当て付けることで、２つの導波管のフランジ部の円周面が前記仮想の円周面上に位置し各導波管の導波路の軸心が合致されることを特徴とする請求項１記載の導波管の接続方法。   A positioning member having an inner diameter of the same dimension as the circumferential surface and having an inner circumferential surface portion extending along the circumferential direction is provided, and the circumferential surfaces of the flange portions of the two waveguides are arranged on the positioning member. The circumferential surface of the flange portion of the two waveguides is positioned on the virtual circumferential surface by being applied to the inner circumferential surface portion, and the axial center of the waveguide of each waveguide is matched. The waveguide connection method according to claim 1. 各導波管のフランジ部の円周面が、単一の部材あるいは複数の部材でそれら円周面の半径方向内方に締め付けるられることで各導波管の導波路の軸心が合致されることを特徴とする請求項１記載の導波管の接続方法。   The circumferential surface of the flange portion of each waveguide is clamped inward in the radial direction of the circumferential surface by a single member or a plurality of members, thereby matching the axis of the waveguide of each waveguide. The waveguide connection method according to claim 1. 前記ノックピンと長溝は、前記２つの導波管の各フランジ部にそれぞれ設けられ、前記２つの導波管のうちの一方の導波管のフランジ部のノックピンが他方の導波管のフランジ部の長溝に挿入されると共に、他方の導波管のフランジ部のノックピンが一方の導波管のフランジ部の長溝に挿入されることを特徴とする請求項１記載の導波管の接続方法。   The knock pin and the long groove are respectively provided in the flange portions of the two waveguides, and the knock pin of the flange portion of one of the two waveguides is the flange portion of the other waveguide. 2. The waveguide connection method according to claim 1, wherein the knock pin of the flange portion of the other waveguide is inserted into the long groove of the flange portion of one waveguide while being inserted into the long groove. 導波路を有する管路部と、この管路部の端部に設けられ前記導波路が開口するフランジ部とを有する２つの導波管を、それらのフランジ部の端面を合わせそれらフランジ部を連結することで２つの導波管の導波路を接続する構造であって、
前記各導波管のフランジ部にそれぞれそれらの導波路の軸心を中心とした同一半径の円周面が設けられ、
前記２つの導波管のうちの一方の導波管のフランジ部に、前記導波路の軸心回りについての位置決めを行なうノックピンが設けられ、
前記２つの導波管のうちの他方の導波管のフランジ部に、該フランジ部の半径方向に沿って延在し前記ノックピンが挿入される長溝が設けられ、
前記各導波管のフランジ部の円周面が、前記半径を有する仮想の円周面上に位置するように前記フランジ部の端面が合わせられ、かつ、前記ノックピンが前記長溝に挿入された状態で２つの導波管のフランジ部が連結されている、
ことを特徴とする導波管の接続構造。 Two waveguides having a pipe part having a waveguide and a flange part provided at an end part of the pipe part and having the waveguide open to each other are aligned with the end faces of the flange parts, and the flange parts are connected to each other. By connecting the waveguides of two waveguides,
A circumferential surface having the same radius around the axis of each waveguide is provided on the flange portion of each waveguide,
A knock pin for positioning about the axis of the waveguide is provided on the flange portion of one of the two waveguides,
A flange portion of the other waveguide of the two waveguides is provided with a long groove extending along the radial direction of the flange portion and into which the knock pin is inserted,
A state in which the end face of the flange portion is aligned so that the circumferential surface of the flange portion of each waveguide is positioned on the virtual circumferential surface having the radius, and the knock pin is inserted into the long groove And the flanges of the two waveguides are connected.
A connection structure for a waveguide. 前記円周面と同一寸法の内径を有して周方向に沿って延在する内周面箇所と、前記内周面箇所と対向するように設けられた弾性部とを有する位置決め部材が設けられ、２つの導波管のフランジ部の円周面は前記位置決め部材の内周面箇所上に位置し前記弾性部により各円周面が前記内周面箇所に突き当てられ、これにより前記各導波管のフランジ部の円周面が前記仮想の円周面上に位置していることを特徴とする請求項６記載の導波管の接続構造。   A positioning member having an inner peripheral surface portion having an inner diameter of the same dimension as the circumferential surface and extending in the circumferential direction, and an elastic portion provided to face the inner peripheral surface portion is provided. The circumferential surfaces of the flange portions of the two waveguides are located on the inner peripheral surface portion of the positioning member, and the respective circumferential surfaces are abutted against the inner peripheral surface portion by the elastic portion, thereby The waveguide connection structure according to claim 6, wherein a circumferential surface of a flange portion of the wave tube is located on the virtual circumferential surface. 前記位置決め部材は、前記円周面よりも大きい輪郭で該円周面の軸方向の厚さを有する単一のボディを備え、前記ボディの厚さ方向に貫設された孔の内周面により前記内周面箇所が構成され、前記内周面箇所に対向する孔の内周部に、前記厚さ方向に貫設された溝により前記孔の内周面に沿って延在し前記孔の内周面の半径方向に弾性変形可能な弾性片が前記孔の内周面の半径方向内側に変位して形成され、前記弾性部は前記弾性片により構成されていることを特徴とする請求項７記載の導波管の接続構造。   The positioning member includes a single body having a larger contour than the circumferential surface and having a thickness in the axial direction of the circumferential surface, and an inner circumferential surface of a hole penetrating in the thickness direction of the body. The inner peripheral surface portion is configured, and the inner peripheral portion of the hole facing the inner peripheral surface portion extends along the inner peripheral surface of the hole by a groove penetrating in the thickness direction. The elastic piece that is elastically deformable in the radial direction of the inner peripheral surface is formed by being displaced inward in the radial direction of the inner peripheral surface of the hole, and the elastic portion is constituted by the elastic piece. 8. A waveguide connection structure according to 7. 前記位置決め部材は、２つの導波管のうちの一方の導波管に取着されていることを特徴とする請求項７記載の導波管の接続構造。   The waveguide connection structure according to claim 7, wherein the positioning member is attached to one of the two waveguides. 前記円周面と同一寸法の内径を有して周方向に沿って延在する内周面箇所と、この内周面箇所の周方向の両側から該内周面に沿って延在する一対の弾性片と、これら一対の弾性片が近接する方向に締め付ける締め付け具とを有する位置決め部材が設けられ、２つの導波管のフランジ部の円周面は前記位置決め部材の内周面箇所上に位置し前記締め付け具及び一対の弾性片により各円周面が前記内周面箇所上において締め付けられ、これにより前記各導波管のフランジ部の円周面が前記仮想の円周面上に位置していることを特徴とする請求項６記載の導波管の接続構造。   An inner peripheral surface portion having an inner diameter of the same dimension as the circumferential surface and extending along the circumferential direction, and a pair of inner peripheral surface portions extending along the inner peripheral surface from both sides in the circumferential direction of the inner peripheral surface portion A positioning member having an elastic piece and a fastening tool for fastening in a direction in which the pair of elastic pieces are close to each other is provided, and the circumferential surfaces of the flange portions of the two waveguides are positioned on the inner peripheral surface portion of the positioning member. Then, each circumferential surface is clamped on the inner circumferential surface portion by the fastening tool and the pair of elastic pieces, so that the circumferential surface of the flange portion of each waveguide is positioned on the virtual circumferential surface. The waveguide connection structure according to claim 6, wherein the waveguide connection structure is provided. 前記ノックピン及び長溝は、前記フランジ部の外周寄りの箇所に設けられていることを特徴とする請求項６記載の導波管の接続構造。   The waveguide connection structure according to claim 6, wherein the knock pin and the long groove are provided at positions near the outer periphery of the flange portion. 前記ノックピンと長溝は、前記２つの導波管の各フランジ部にそれぞれ設けられ、前記２つの導波管のうちの一方の導波管のフランジ部のノックピンが他方の導波管のフランジ部の長溝に挿入されると共に、他方の導波管のフランジ部のノックピンが一方の導波管のフランジ部の長溝に挿入されることを特徴とする請求項６記載の導波管の接続構造。   The knock pin and the long groove are respectively provided in the flange portions of the two waveguides, and the knock pin of the flange portion of one of the two waveguides is the flange portion of the other waveguide. 7. The waveguide connection structure according to claim 6, wherein a knock pin of the flange portion of the other waveguide is inserted into the long groove of the flange portion of one waveguide while being inserted into the long groove.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117117451A (en) * 2023-10-24 2023-11-24 成都沃特塞恩电子技术有限公司 Waveguide tube assembly
EP4287393A1 (en) * 2022-06-02 2023-12-06 Furuno Electric Co., Ltd. Waveguide tube connecting member
CN117438757A (en) * 2023-12-21 2024-01-23 成都沃特塞恩电子技术有限公司 Waveguide connecting assembly and microwave transmission device
US12040521B2 (en) 2021-08-06 2024-07-16 Furuno Electric Co., Ltd. Waveguide tube connecting member comprising a flange having a peripheral surface with an inwardly extending recess

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12040521B2 (en) 2021-08-06 2024-07-16 Furuno Electric Co., Ltd. Waveguide tube connecting member comprising a flange having a peripheral surface with an inwardly extending recess
EP4287393A1 (en) * 2022-06-02 2023-12-06 Furuno Electric Co., Ltd. Waveguide tube connecting member
CN117117451A (en) * 2023-10-24 2023-11-24 成都沃特塞恩电子技术有限公司 Waveguide tube assembly
CN117117451B (en) * 2023-10-24 2023-12-29 成都沃特塞恩电子技术有限公司 Waveguide tube assembly
CN117438757A (en) * 2023-12-21 2024-01-23 成都沃特塞恩电子技术有限公司 Waveguide connecting assembly and microwave transmission device
CN117438757B (en) * 2023-12-21 2024-03-01 成都沃特塞恩电子技术有限公司 Waveguide connecting assembly and microwave transmission device

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