JP3166595U - Earth station equipment - Google Patents

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JP3166595U
JP3166595U JP2010008477U JP2010008477U JP3166595U JP 3166595 U JP3166595 U JP 3166595U JP 2010008477 U JP2010008477 U JP 2010008477U JP 2010008477 U JP2010008477 U JP 2010008477U JP 3166595 U JP3166595 U JP 3166595U
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earth station
screw shaft
antenna
shaft
portable earth
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正美 宇佐美
正美 宇佐美
末治 亀谷
末治 亀谷
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Nippon Telegraph and Telephone West Corp
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Abstract

【課題】アンテナが固定された可搬型地球局のアンテナ仰角調整作業を被災地であっても手間取らずに実施可能とする。【解決手段】可搬型地球局10を着脱可能な可動部21と、可動部21の調整軸22を保持する設置基部23と、設置基部23に設けられたナット31に対するねじ軸32の螺進を可動部21の調整軸22回りの回動に変換するリンク式の仰角調整機構とを備え、可搬型地球局10が可動部21に装着された状態でねじ軸32を、自在継手部41、90?変換アダプタ42等を含んだトルク伝達経路で電動又は手動で回すことにより、アンテナ11の仰角を静止衛星に応じた角度に定めることができるようにした。【選択図】図1PROBLEM TO BE SOLVED: To perform an antenna elevation angle adjusting work of a portable earth station having a fixed antenna even in a disaster area without any trouble. SOLUTION: A movable portion 21 to which a portable earth station 10 can be attached and detached, an installation base 23 for holding an adjusting shaft 22 of the movable portion 21, and a screw shaft 32 are screwed with respect to a nut 31 provided on the installation base 23. It is equipped with a link-type elevation angle adjustment mechanism that converts the rotation of the movable portion 21 around the adjustment shaft 22. With the portable earth station 10 mounted on the movable portion 21, the screw shaft 32 can be attached to the universal joint portions 41 and 90. The elevation angle of the antenna 11 can be set to an angle corresponding to the stationary satellite by electrically or manually rotating the torque transmission path including the conversion adapter 42 and the like. [Selection diagram] Fig. 1

Description

この考案は、静止衛星と送受信を行う可搬型地球局に備わるアンテナの仰角を調整するために用いる可搬型の地球局設置器具に関する。   The present invention relates to a portable earth station installation tool used to adjust the elevation angle of an antenna provided in a portable earth station that transmits and receives with a geostationary satellite.

災害発生時に発生する被災地の通信の孤立に備え、静止衛星の中継器を介して基地局と接続する可搬型地球局が配備されている。可搬型地球局を開局する際は、作業員が付属のアンテナを所定の静止衛星に向け、可搬型地球局を地上に設置することが必要である。   In preparation for isolation of communications in the disaster area that occurs in the event of a disaster, a portable earth station that is connected to a base station via a repeater of a geostationary satellite is deployed. When opening a portable earth station, it is necessary for an operator to point the attached antenna toward a predetermined geostationary satellite and install the portable earth station on the ground.

Ku帯を用いる衛星通信システムでは、CS帯のシステムと比して、アンテナの仰角調整を細かく実施することを要するが、アンテナ面積を小さくすることができる。このため、アンテナを備え付けた可搬型地球局が実用化されている(特許文献1)。特許文献1の可搬型地球局は、送信器等を内蔵するケーシングに対して調整軸を介して開閉可能に連結されたアンテナを備えている。アンテナをケーシングに閉じ合わせた状態で可搬型地球局を運搬し、可搬型地球局を地上に設置し、アンテナを調整軸回りに動かすことにより、アンテナの仰角を静止衛星に応じた角度に調整することができるようになっている。可搬型地球局は、受信レベル表示部がケーシングの上面に固定されている。受信レベル表示部は、静止衛星からのマイクロ波信号の受信レベルの変化に応じた表示を行うようになっているので、その表示を参照にアンテナの仰角の微調整を容易に行うことができる。   In satellite communication systems using the Ku band, it is necessary to finely adjust the elevation angle of the antenna as compared with the CS band system, but the antenna area can be reduced. For this reason, a portable earth station equipped with an antenna has been put into practical use (Patent Document 1). The portable earth station of Patent Document 1 includes an antenna connected to a casing containing a transmitter or the like via an adjustment shaft so as to be opened and closed. Carry the portable earth station with the antenna closed to the casing, install the portable earth station on the ground, and move the antenna around the adjustment axis to adjust the elevation angle of the antenna to the angle corresponding to the geostationary satellite Be able to. In the portable earth station, the reception level display section is fixed to the upper surface of the casing. Since the reception level display unit performs display in accordance with the change in the reception level of the microwave signal from the geostationary satellite, the antenna elevation angle can be easily finely adjusted with reference to the display.

一方、アンテナと可搬型地球局とを別体とし、アンテナだけを地球局設置器具で支持し、アンテナと可搬型地球局を接続することも提案されている(特許文献2)。アンテナ設置器具は、可搬型地球局と共に被災地に持ち込める必要があるので、可搬型のものであり、アンテナを着脱可能な可動部と、可動部の調整軸を保持する設置基部とを有している。作業員は、設置基部を地上に設置し、アンテナを可動部に装着し、アンテナを手で押して可動部を調整軸回りに動かすことにより、アンテナの仰角を静止衛星に応じた角度に調整することができるようになっている。このアンテナ設置器具は、アンテナだけを可動部に取り付けるので、作業員が可動部を軽く動かすことでき、仰角の微調整が容易である。   On the other hand, it has also been proposed to separate an antenna and a portable earth station, support only the antenna with an earth station installation tool, and connect the antenna and the portable earth station (Patent Document 2). Since the antenna installation tool needs to be brought into the disaster area together with the portable earth station, it is portable and has a movable part that can attach and detach the antenna, and an installation base that holds the adjustment axis of the movable part. Yes. The operator installs the installation base on the ground, attaches the antenna to the movable part, and adjusts the elevation angle of the antenna to an angle corresponding to the geostationary satellite by pushing the antenna by hand and moving the movable part around the adjustment axis. Can be done. Since this antenna installation tool attaches only the antenna to the movable part, the operator can lightly move the movable part, and fine adjustment of the elevation angle is easy.

特開平8−250919号公報JP-A-8-250919 特開2006−287350号公報JP 2006-287350 A

特許文献1の可搬型地球局は、アンテナと可搬型地球局の開閉機構及びアンテナを閉じ合わせ位置にロックする機構を要する。また、特許文献2の可搬型地球局は、アンテナと別体なので、アンテナ一体化の利点を得ることができず、可搬型地球局を接続する手間を要する。   The portable earth station of Patent Document 1 requires an antenna, a mechanism for opening and closing the portable earth station, and a mechanism for locking the antenna in the closed position. Moreover, since the portable earth station of patent document 2 is a different body from an antenna, the advantage of antenna integration cannot be acquired and the effort which connects a portable earth station is required.

本願出願人は、可搬型地球局の小型化を進め、アンテナが固定された可搬型地球局を開発、配備し、特許文献2のアンテナ設置器具と同様、可動部と、三脚等をもった設置基部とからなる地球局設置器具を用いている。現状、可搬型地球局の軽量化に限界があり、特許文献1に開示されているような1ch用の可搬型地球局であっても、目方重量が20Kg程度になっている。重い可搬型地球局を可動部に装着することになるため、作業員が左右一方側から可搬型地球局を抱いて可動部を調整軸回りに動かすことを要し、仰角の微調整が困難であった。   The applicant of the present application has promoted miniaturization of a portable earth station, developed and deployed a portable earth station with a fixed antenna, and installed a movable part, a tripod, etc., similar to the antenna installation tool of Patent Document 2. The earth station installation equipment which consists of a base is used. At present, there is a limit to the weight reduction of the portable earth station, and even the portable earth station for 1ch as disclosed in Patent Document 1 has an apparent weight of about 20 kg. Since a heavy portable earth station is attached to the movable part, it is necessary for the worker to hold the portable earth station from the left and right sides and move the movable part around the adjustment axis, making fine adjustment of the elevation angle difficult. there were.

また、仰角の調整後の可動部固定が弱かった場合、可搬型地球局の重さに耐え切れずに可動部が不意に回転することがあり、せっかく調整を終えた仰角が狂ってしまうことがあった。   In addition, if the movable part is fixed after the adjustment of the elevation angle, the movable part may rotate unexpectedly without being able to withstand the weight of the portable earth station, and the elevation angle after adjustment may be out of order. there were.

固定式のアンテナは可搬型地球局の正面に配置することを要する。可搬型地球局の小型化を図るため、受信レベル表示部を正面に配置しない方がよい。受信レベル表示を調整軸に沿った左右方向から観察すると、可動部が動く間も視線を大きく動かすことがなく、観察し易い。これらの理由から、受信レベル表示部は、ケーシングの調整軸に沿った左右方向の側面に固定されている。   The fixed antenna needs to be placed in front of the portable earth station. In order to reduce the size of the portable earth station, it is better not to arrange the reception level display unit in front. When the reception level display is observed from the left-right direction along the adjustment axis, the line of sight does not move greatly even while the movable part moves, and it is easy to observe. For these reasons, the reception level display unit is fixed to the lateral side surface along the adjustment axis of the casing.

実際のところ、可搬型地球局を左右一方側から抱き動かす作業員は、上半身が可搬型地球局に接近しているため、受信レベル表示部と同側に立っても表示を視認することが困難である。このため、可動部を動かす作業員は、可搬型地球局を受信レベル表示部と左右反対側に占位し、もう一人の作業員が、可搬型地球局の受信レベル表示部と左右同側に占位して受信レベル表示部が表示する受信レベルの変化を観察し、可動部を動かす作業員に対して受信レベルが大きくなるように調整方向を口頭で指示している。大雑把にならざるを得ない可動部の回動操作と、指示発声、指示応答に反応時間を要することが相俟り、アンテナの仰角の微調整に時間を要している。平均的な両作業員だと、可搬型地球局の設置完了までの作業時間が30分程度になっている。平時であれば30分程度の作業時間が格別に問題視されることはないが、被災地の通信復旧は、被災状況を把握する上で特に重要なので、1分でも早い方がよい。さらに被災地に送り込める作業人員が制限され得ることから、アンテナの仰角調整を一人で容易に実施し得る方がよい。   As a matter of fact, it is difficult for workers who move the portable earth station from the left or right side to see the display even when standing on the same side as the reception level display section because the upper body is close to the portable earth station. It is. For this reason, the worker who moves the movable part occupies the portable earth station on the opposite side to the reception level display part, and the other worker is on the same side as the reception level display part of the portable earth station. The change of the reception level displayed by the reception level display unit is observed and the adjustment direction is verbally instructed to increase the reception level for the worker who moves the movable part. It takes a long time to finely adjust the elevation angle of the antenna due to the fact that a reaction time is required for the pivoting operation of the movable part, which must be roughly, and the instruction utterance and the instruction response. For both average workers, the work time to complete the installation of the portable earth station is about 30 minutes. In normal times, the work time of about 30 minutes is not a particular problem, but communication recovery in the disaster area is particularly important for grasping the disaster situation, so it is better that it is as fast as 1 minute. Furthermore, since the number of workers that can be sent to the stricken area can be limited, it is better to be able to easily adjust the elevation angle of the antenna alone.

上記の背景に鑑み、この考案が解決する課題は、アンテナが固定された可搬型地球局のアンテナ仰角調整作業を被災地であっても手間取らずに実施可能とすることである。   In view of the above background, the problem to be solved by the present invention is to enable the antenna elevation angle adjustment work of a portable earth station with an antenna fixed even in a stricken area without trouble.

上記の課題を達成するため、この考案は、静止衛星と送受信を行う可搬型地球局に備わるアンテナの仰角を調整するために用いる可搬型の地球局設置器具であって、前記アンテナが固定された前記可搬型地球局を着脱可能な可動部と、前記可動部の調整軸を保持する設置基部と、前記設置基部に設けられたナットに対するねじ軸の螺進を前記可動部の前記調整軸回りの回動に変換する仰角調整機構とを備え、前記可搬型地球局が前記可動部に装着された状態で前記ねじ軸を回すことにより、前記アンテナの仰角を静止衛星に応じた角度に定めることができる構成を採用した。   In order to achieve the above object, the present invention provides a portable earth station installation tool used to adjust the elevation angle of an antenna provided in a portable earth station that transmits and receives with a geostationary satellite, and the antenna is fixed A movable part to which the portable earth station can be attached and detached, an installation base that holds the adjustment shaft of the movable part, and a screw shaft that is screwed with respect to a nut provided on the installation base around the adjustment axis of the movable part. An elevation angle adjustment mechanism for converting to rotation, and by turning the screw shaft while the portable earth station is mounted on the movable part, the elevation angle of the antenna can be set to an angle corresponding to a geostationary satellite. The configuration that can be used.

この考案の構成によれば、ねじ軸の螺進を可動部の回動に変換して仰角を変更することができるため、可搬型地球局が装着された可動部を作業員が直接に動かすことはなく、ねじ軸を回すだけで済むので、作業員の負担を大幅に軽減することができる。また、送りねじ機構で可動部を回動させるため、Ku帯の静止衛星にアンテナを向けるのに十分な精度で仰角の微調整が可能である。可搬型地球局が装着された状態で可動部を動かせるナット及びねじ軸の螺合なので、仰角を静止衛星に応じた角度に定めた後も螺合位置が維持される。したがって、可搬型地球局の重量で不意に可動部が回って仰角が狂う心配もない。単独の作業員が受信レベル表示部を視ながら仰角調整を行う場合であっても、ねじ回し具に適宜のアダプタを装着することで受信レベル表示部を視認可能なところからねじ軸を回すことが可能なので、表示を参照しながらの仰角微調整を容易に行うことができる。ねじ軸を回すだけなので、手動でも単独での調整作業が可能であり、被災地に設置する際の電力網の利用可否、電動ねじ回し具の有無を問わず、容易な調整が可能である。   According to the configuration of the present invention, since the elevation angle can be changed by converting the screw shaft to the rotation of the movable part, the worker directly moves the movable part on which the portable earth station is mounted. However, it is only necessary to turn the screw shaft, so that the burden on the worker can be greatly reduced. Further, since the movable part is rotated by the feed screw mechanism, the elevation angle can be finely adjusted with sufficient accuracy to point the antenna at the Ku-band geostationary satellite. Since the nut and the screw shaft that can move the movable part with the portable earth station mounted are screwed, the screwing position is maintained even after the elevation angle is set to an angle corresponding to the geostationary satellite. Therefore, there is no fear that the movable part will turn unexpectedly due to the weight of the portable earth station and the elevation angle will go wrong. Even when a single worker adjusts the elevation angle while looking at the reception level display section, the screw shaft can be turned from where the reception level display section is visible by attaching an appropriate adapter to the screwdriver. Since it is possible, fine adjustment of the elevation angle while referring to the display can be easily performed. Since only the screw shaft is turned, manual adjustment can be performed manually, and easy adjustment is possible regardless of whether or not the power grid can be used and whether or not an electric screwdriver is used.

以上の述べた通り、この考案は、アンテナが固定された可搬型地球局のアンテナ仰角調整作業を被災地であっても手間取らずに実施することができる。   As described above, the present invention can carry out the antenna elevation angle adjustment work of a portable earth station with an antenna fixed, even in a stricken area, without trouble.

実施例の全体構成を示す斜視図The perspective view which shows the whole structure of an Example. (a)は実施例の正面図、(b)は実施例の側面図(A) is a front view of the embodiment, (b) is a side view of the embodiment. 実施例の仰角調整機構の分解図Exploded view of the elevation angle adjustment mechanism of the embodiment 実施例の動作を示す作用図Action diagram showing operation of the embodiment

以下、この考案の地球局設置器具に係る実施形態を説明する。
第1実施形態は、前記調整軸に沿った左右方向の側面に位置した受信レベル表示部を有する前記可搬型地球局に使用するためのものであって、前記ねじ軸に至るトルク伝達経路の入力端を前記可動部の調整回動範囲の全域で前記可搬型地球局よりも後方に設ける着脱式アダプタを備えている。ここで、この考案における「後方」とは、「左右方向」に直角な水平直線に沿った前後方向であって、可搬型地球局のアンテナから遠ざかる方の向きのことをいう。「可動部の調整回動範囲」とは、ねじ軸を回すことで可動部を調整軸回りに動かし得る範囲のことをいう。
Hereinafter, an embodiment according to the earth station installation instrument of the present invention will be described.
The first embodiment is for use in the portable earth station having a reception level display unit located on the side surface in the left-right direction along the adjustment axis, and an input of a torque transmission path to the screw shaft A detachable adapter is provided that has an end behind the portable earth station in the entire adjustment rotation range of the movable portion. Here, “rear” in the present invention refers to the front-rear direction along a horizontal straight line perpendicular to the “left-right direction”, and the direction away from the antenna of the portable earth station. The “adjustable rotation range of the movable part” refers to a range in which the movable part can be moved around the adjustment axis by turning the screw shaft.

第1実施形態によれば、作業員は、どの仰角に調整する場合でも、可搬型地球局の後方から、トルク伝達経路の入力端にねじ回し具でトルクを与えることができる。その調整の間、作業員は、可搬型地球局の後方に占位して上半身を軽く傾けるか、斜め後方に占位することで受信レベル表示部を視野に入れ続けることができる。アダプタで入力端の位置を設定すれば、ナット及びねじ軸を設置基部の近くに設けることができる。着脱式のアダプタなので、地球局設置器具を収納、運搬する邪魔にならなず、様々な市販品から適宜のアダプタを利用することもできる。   According to the first embodiment, the worker can apply torque to the input end of the torque transmission path from the rear of the portable earth station with a screwdriver regardless of the elevation angle. During the adjustment, the worker can occupy the rear of the portable earth station and tilt the upper body lightly or occupy the oblique rearward to keep the reception level display portion in the field of view. If the position of the input end is set by the adapter, the nut and the screw shaft can be provided near the installation base. Since it is a detachable adapter, it does not get in the way of storing and transporting the earth station installation equipment, and an appropriate adapter can be used from various commercial products.

なお、ナット及びねじ軸を設置基部の近くに設ける場合、作業員が受信レベル表示部と正対する位置に占位すると、入力端の位置を可搬型地球局から左右方向に十分離さなければ観察し辛く、アダプタを比較的に長くすることになる。   When the nut and screw shaft are installed near the installation base, if the operator occupies the position facing the reception level display section, observe that the position of the input end is not sufficiently separated from the portable earth station in the left-right direction. It is painful and the adapter will be relatively long.

第2実施形態は、前記仰角調整機構として、前記ナット及びねじ軸を設置基部の近くに設けることができる単純なリンク機構を採用したものである。すなわち、この仰角調整機構は、前記設置基部と前記左右方向の揺動軸で連結された前記ナットと、前記可動部と前記左右方向の回動軸で連結された前記ねじ軸とからなる。前記ナット及び前記ねじ軸は、前記可動部に装着された前記可搬型地球局の下方に位置する。   The second embodiment employs a simple link mechanism that can provide the nut and the screw shaft near the installation base as the elevation angle adjusting mechanism. That is, the elevation angle adjusting mechanism includes the nut connected to the installation base by the left-right swing shaft, and the screw shaft connected to the movable portion by the left-right rotation shaft. The nut and the screw shaft are located below the portable earth station mounted on the movable part.

ナットを左右方向の揺動軸で設置基部に連結し、ねじ軸を左右方向の回動軸で可動部に連結するリンクなので、ナット及びねじ軸の基本軸線を上下方向とし、これらを可搬型地球局の下方という、設置基部の近くに配置することができる。揺動軸の支持部を設置基部に設け、回動軸の支持部を可動部に設けるだけなので、設置基部、可動部を格別に大型化する必要はなく、既存の地球局設置器具に仰角調整機構を追加することも容易である。   This is a link that connects the nut to the installation base with the left and right swing shaft and connects the screw shaft to the movable part with the left and right rotation shaft, so the basic axis of the nut and screw shaft is the vertical direction, and these are the portable earth It can be located near the installation base, below the station. Since the support part of the swing shaft is provided on the installation base and the support part of the rotation shaft is only provided on the movable part, it is not necessary to enlarge the installation base and the movable part. It is easy to add a mechanism.

第3実施形態は、前記着脱式アダプタとして、前記入力端の回転軸線に直交する回転軸線の回転出力を行う90°変換アダプタを有し、前記トルク伝達経路は、前記ねじ軸と前記90°変換アダプタとの間に介在する自在継手部を有するものである。   The third embodiment includes, as the detachable adapter, a 90 ° conversion adapter that performs a rotation output of a rotation axis orthogonal to the rotation axis of the input end, and the torque transmission path includes the screw shaft and the 90 ° conversion. It has a universal joint part interposed between adapters.

仰角の調整作業中にねじ軸が揺動軸回りに揺動しても、自在継手部で揺動を許容し、90°変換アダプタを介して入力端の回転軸線を水平に保ったトルク入力が可能になる。したがって、第3実施形態は、インパクトレンチ、インパクトドライバ等の適宜の電動ねじ回し具を用いた仰角調整を容易に実施することができる。   Even if the screw shaft swings around the swing axis during adjustment of the elevation angle, the universal joint allows swinging and the torque input with the input end rotation axis kept horizontal via the 90 ° conversion adapter. It becomes possible. Therefore, the third embodiment can easily perform elevation angle adjustment using an appropriate electric screwdriver such as an impact wrench or impact driver.

第4実施形態は、前記ナット及び前記ねじ軸を前記設置基部及び前記可動部に対して着脱可能としたものである。   In the fourth embodiment, the nut and the screw shaft are detachable from the installation base and the movable part.

ナット及びねじ軸を設置基部、可動部から取り外せば、これらを収納袋やケースに入れ易くなる。特に、前記のリンク機構によれば、設置基部、可動部を格別に大型化する必要はなく、ナット及びねじ軸を取り外せば、既存の地球局設置器具の収納袋を継続して利用可能な嵩張りに保つことが可能である。   If the nut and the screw shaft are removed from the installation base and the movable part, they can be easily put in a storage bag or a case. In particular, according to the above-mentioned link mechanism, it is not necessary to enlarge the installation base and the movable part, and if the nut and the screw shaft are removed, the storage bag for the existing earth station installation instrument can be used continuously. It can be kept upholstered.

この考案に係る地球局設置器具の一実施例を説明する。この実施例は、Ku帯の静止衛星としてN−STAR衛星を用いる孤立防止対策用衛星電話の1回線設営用の可搬型地球局に対応した地球局設置器具となっている。以下、添付図面に基いて説明する。   An embodiment of the earth station installation device according to this device will be described. This embodiment is an earth station installation device corresponding to a portable earth station for setting up one line of a satellite phone for isolation prevention using an N-STAR satellite as a Ku-band geostationary satellite. Hereinafter, description will be given based on the attached drawings.

図1に示す実施例は、静止衛星(図示省略)と送受信を行う可搬型地球局10に備わるアンテナ11の仰角を調整するために用いる可搬型の地球局設置器具20であって、アンテナ11が固定された可搬型地球局10を着脱可能な可動部21と、可動部21の調整軸22を保持する設置基部23と、設置基部23に設けられたナット31に対するねじ軸32の螺進を可動部21の調整軸22回りの回動に変換する仰角調整機構とを備えている。   The embodiment shown in FIG. 1 is a portable earth station installation tool 20 used to adjust the elevation angle of an antenna 11 provided in a portable earth station 10 that transmits and receives with a geostationary satellite (not shown). A movable portion 21 to which the fixed portable earth station 10 can be attached and detached, an installation base 23 that holds the adjustment shaft 22 of the movable portion 21, and a screw shaft 32 that is screwed with respect to a nut 31 provided on the installation base 23 is movable. And an elevation angle adjustment mechanism that converts the rotation of the portion 21 around the adjustment shaft 22.

図1、図2に示すように、可搬型地球局10は、ケーシング12に特許文献1に開示されているような送信器、受信器、復調器、変調器等を内蔵し、その正面にアンテナ11が固定されたものとなっている。アンテナ11は、可搬型地球局10の正面に全面的に設けられた平面アンテナからなる。アンテナ11のアンテナ形状は問わず、パラボラアンテナでもよい。   As shown in FIG. 1 and FIG. 2, the portable earth station 10 has a casing 12, in which a transmitter, a receiver, a demodulator, a modulator and the like disclosed in Patent Document 1 are built, and an antenna is provided in front of the casing 12. 11 is fixed. The antenna 11 is a flat antenna provided entirely on the front surface of the portable earth station 10. The antenna shape of the antenna 11 is not limited and may be a parabolic antenna.

この可搬型地球局10は、ケーシング12の調整軸22に沿った左右方向の側面に固定された受信レベル表示部13を有する。受信レベル表示部13は、受信レベルに応じて変化するものであれば、特に表示形式は問わない。図示例の受信レベル表示部13は、発光表示メータからなり、左右片側にのみ設けられている。   The portable earth station 10 has a reception level display unit 13 fixed to the side surface in the left-right direction along the adjustment axis 22 of the casing 12. The display format of the reception level display unit 13 is not particularly limited as long as it changes according to the reception level. The reception level display unit 13 in the illustrated example is composed of a light emitting display meter, and is provided only on one of the left and right sides.

可動部21は、可搬型地球局10の着脱箇所としてアンテナ11の背面中央部に位置したケーシング12の背面中央部を固定可能なターンテーブル24を有する。ターンテーブル24は、アンテナ11の偏波角調整のために設けられている。   The movable portion 21 has a turntable 24 that can fix the central portion of the back surface of the casing 12 located at the central portion of the back surface of the antenna 11 as a place where the portable earth station 10 can be attached and detached. The turntable 24 is provided for adjusting the polarization angle of the antenna 11.

設置基部23は、調整軸22を保持する方位調整軸25と、この方位調整軸25を地面に対して支持する基部26とを有する。基部26は、三脚を有し、傾斜をもった地表面に対しても方位調整軸25を水平に支持可能となっている。方位調整軸25は、水平に支持された基部26に対して上下方向(鉛直方向)軸回りに回転可能となっている。したがって、この実施例は、可動部21の方位をも調整可能となっている。   The installation base 23 includes an azimuth adjustment shaft 25 that holds the adjustment shaft 22 and a base 26 that supports the azimuth adjustment shaft 25 with respect to the ground. The base portion 26 has a tripod and can support the azimuth adjusting shaft 25 horizontally even on a ground surface having an inclination. The azimuth adjusting shaft 25 is rotatable about a vertical (vertical) axis with respect to a horizontally supported base 26. Therefore, in this embodiment, the orientation of the movable portion 21 can be adjusted.

図1、図3に示すように、仰角調整機構は、設置基部23と前記左右方向の揺動軸33で連結されたナット31と、可動部21と前記左右方向の回動軸35で連結されたねじ軸32とからなる。   As shown in FIGS. 1 and 3, the elevation angle adjusting mechanism is connected to the installation base 23 and the nut 31 connected by the left and right swing shaft 33, and the movable portion 21 and the left and right rotation shaft 35. It consists of a screw thread shaft 32.

ナット31は、設置基部23の方位調整軸25に設けられている。揺動軸33は、雄ねじ部を有する。揺動軸33を螺着脱するための雌ねじ部付きステー34が、方位調整軸25に対して着脱可能になっている。ステー34は、方位調整軸25にボルト止めすることができる。ステー34は、方位調整軸25にボルト止めする基板部と、揺動軸33を螺着脱する雌ねじ部とを着脱可能になっている。この着脱もボルト止めによる。方位調整軸25とステー34間の着脱、又は方位調整軸25に装着されたステー34とナット31間の着脱のいずれかにより、ナット31を設置基部23に対して着脱することが可能である。この実施例は、ナット31を方位調整軸25に設けているので、ナット31及びねじ軸32を装着したまま、方位調整を実施することができる。   The nut 31 is provided on the orientation adjustment shaft 25 of the installation base 23. The swing shaft 33 has a male screw portion. A stay 34 with a female thread for attaching and detaching the swing shaft 33 is attachable to and detachable from the azimuth adjusting shaft 25. The stay 34 can be bolted to the azimuth adjusting shaft 25. The stay 34 is detachably attachable to a board portion that is bolted to the azimuth adjusting shaft 25 and a female screw portion that is screwed to the swing shaft 33. This attachment / detachment is also by bolting. The nut 31 can be attached to and detached from the installation base 23 by either attaching / detaching between the azimuth adjusting shaft 25 and the stay 34 or attaching / detaching between the stay 34 attached to the azimuth adjusting shaft 25 and the nut 31. In this embodiment, since the nut 31 is provided on the azimuth adjusting shaft 25, the azimuth adjustment can be performed with the nut 31 and the screw shaft 32 attached.

可動部21の軸孔21aは、ねじ軸32の上端部に形成された軸孔と左右方向に連通するように形成されている。軸孔21aから挿入してねじ軸32の軸孔を貫通させた回動軸35を可動部21に装着可能となっている。この固定には、止め輪、かしめの適宜の手段を採用することができる。この実施例では、C型止め輪の採用により、ねじ軸32の上端部と可動部21とを分離可能としている。したがって、回動軸35を挿脱により、ねじ軸32を可動部21に対して着脱することが可能である。   The shaft hole 21 a of the movable portion 21 is formed so as to communicate with the shaft hole formed in the upper end portion of the screw shaft 32 in the left-right direction. A rotating shaft 35 inserted through the shaft hole 21 a and passing through the shaft hole of the screw shaft 32 can be attached to the movable portion 21. For this fixing, a retaining ring and appropriate means of caulking can be employed. In this embodiment, the upper end portion of the screw shaft 32 and the movable portion 21 can be separated by employing a C-type retaining ring. Therefore, the screw shaft 32 can be attached to and detached from the movable portion 21 by inserting and removing the rotating shaft 35.

なお、ねじ軸32の上端部は、雄ねじ部材を挿入するようになっている。したがって、この実施例は、回動軸35を抜かずとも、ナット31を設置基部23から分離すれば、ねじ軸32の略全部を可動部21から外すことができる。回動軸35を挿脱すれば、ねじ軸32と可動部21を分離可能なので、ねじ軸32の上端部が雄ねじ部材に固定されたものでもよい。   The upper end portion of the screw shaft 32 is adapted to insert a male screw member. Therefore, in this embodiment, if the nut 31 is separated from the installation base 23 without removing the rotating shaft 35, substantially the entire screw shaft 32 can be removed from the movable portion 21. Since the screw shaft 32 and the movable portion 21 can be separated by inserting and removing the rotation shaft 35, the upper end portion of the screw shaft 32 may be fixed to the male screw member.

ねじ軸32の下端部は、自在継手部41になっている。自在継手部41は、雄ねじ部材の下端部に固定されている。自在継手部41は、カルダンジョイント等のユニバーサルジョイントになっている。図示例は、UNCA8型のユニバーサルジョイントが雄ねじ部材に固定されている。自在継手部41を雄ねじ部材の頭部に着脱可能とし、ねじ軸32の構成部材から除外すること、すなわち、ねじ軸32の下端部を雄ねじ部材の下端部(例えば頭部や六角穴)にすることもできる。   The lower end portion of the screw shaft 32 is a universal joint portion 41. The universal joint portion 41 is fixed to the lower end portion of the male screw member. The universal joint portion 41 is a universal joint such as a cardan joint. In the illustrated example, a UNCA8 type universal joint is fixed to a male screw member. The universal joint portion 41 can be attached to and detached from the head portion of the male screw member, and is excluded from the constituent members of the screw shaft 32. That is, the lower end portion of the screw shaft 32 is the lower end portion of the male screw member (for example, the head portion or hexagonal hole). You can also.

図2(b)、図4に示すように、前記のように設置基部23にナット31が装着され、ねじ軸32が可動部21に装着され、可搬型地球局10が可動部21に装着された状態でねじ軸32を回すことにより、アンテナ11の仰角を静止衛星に応じた角度に定めることができる。なお、図2(b)、図4は、水平な地表面(図示省略)に設置基部23を置いた状態を前提とし、図2(b)では、可動部21の調整回動範囲のうち、アンテナ11の仰角が最小になる回動位置(調整回動範囲の下限)を示し、図4では、アンテナ11の仰角が最大になる回動位置(調整回動範囲の上限)を示し、回動時のアンテナ11の変位を二点鎖線で段階的に示している。   As shown in FIGS. 2B and 4, as described above, the nut 31 is attached to the installation base 23, the screw shaft 32 is attached to the movable portion 21, and the portable earth station 10 is attached to the movable portion 21. By turning the screw shaft 32 in a state where the antenna 11 is turned, the elevation angle of the antenna 11 can be set to an angle corresponding to the geostationary satellite. 2 (b) and 4 are based on the assumption that the installation base 23 is placed on a horizontal ground surface (not shown). In FIG. 2 (b), of the adjustment rotation range of the movable portion 21, The rotation position at which the elevation angle of the antenna 11 is minimized (lower limit of the adjustment rotation range) is shown. In FIG. 4, the rotation position at which the elevation angle of the antenna 11 is maximized (upper limit of the adjustment rotation range) is shown. The displacement of the antenna 11 at the time is shown stepwise by a two-dot chain line.

ねじ軸32の揺動範囲は、可動部21の回動に伴うねじ軸32の上端部と可動部21の連結部の前後方向変位を吸収することができれば十分である。リンク機構でなくとも、ねじ軸32の上端部を受けるカム面を可動部21に設け、カム面でねじ軸32の上下方向動を調整軸22回りの回動に変換することは可能である。リンク機構は、カム機構と比して滑りがなく、重い可搬型地球局10ごと可動部21をねじ軸32で支持するにはリンク機構の方が好ましい。   The swing range of the screw shaft 32 is sufficient if it can absorb the longitudinal displacement of the upper end portion of the screw shaft 32 and the connecting portion of the movable portion 21 due to the rotation of the movable portion 21. Even if it is not a link mechanism, it is possible to provide a cam surface that receives the upper end portion of the screw shaft 32 in the movable portion 21 and convert the vertical movement of the screw shaft 32 into rotation around the adjustment shaft 22 on the cam surface. The link mechanism is less slippery than the cam mechanism, and the link mechanism is preferable in order to support the movable portion 21 with the screw shaft 32 together with the heavy portable earth station 10.

この実施例は、水平な地表面に設置基部23を置くことを前提に、日本の国土の任意の地点においてアンテナ11をN−STAR衛星に応じた角度に定めることが可能な28°〜68°の仰角調整範囲を得られるように設けられている。なお、可動部21の調整回動範囲は、静止衛星の位置、設置基部を置く地面の許容傾斜、使用想定範囲の緯度に基いて適宜に定めればよい。   In this embodiment, on the premise that the installation base 23 is placed on a horizontal ground surface, the antenna 11 can be set at an angle corresponding to the N-STAR satellite at an arbitrary point on the land of Japan. The elevation angle adjustment range is provided. The adjustment rotation range of the movable unit 21 may be determined as appropriate based on the position of the geostationary satellite, the allowable inclination of the ground on which the installation base is placed, and the latitude of the assumed use range.

これらの図示から明らかなように、ナット31及びねじ軸32は、可動部21に装着された可搬型地球局10の下方に位置する。これだけ設置基部23の近くに設けると、ステー34、可動部21の軸孔21aの分の嵩が増すだけなので、この仰角調整機構に係る部分をもたない既存の地球局設置器具の収納袋に可動部21及び設置基部23ごと収納し、ナット31、ねじ軸32を外せば、遊休空間だったところにナット31、ねじ軸32を詰めることができる。したがって、同収納袋をそのまま実施例の収納にも流用することができる。   As is apparent from these drawings, the nut 31 and the screw shaft 32 are located below the portable earth station 10 attached to the movable portion 21. If it is provided as close to the installation base 23 as this, only the bulk of the stay 34 and the shaft hole 21a of the movable part 21 is increased, so that it can be used as a storage bag for an existing earth station installation instrument that does not have a portion related to the elevation angle adjustment mechanism. If the movable part 21 and the installation base part 23 are housed together and the nut 31 and the screw shaft 32 are removed, the nut 31 and the screw shaft 32 can be packed in an idle space. Therefore, the storage bag can be used for storage in the embodiment as it is.

また、ねじ軸32は、調整可動範囲の全域で設置基部23の基部26から下方に突出することのないように設けられている。このため、図1に示すように、基部26の三脚で地表面と設置基部23との間に形成された空間を使用すれば、ねじ軸32を回すためのトルク伝達経路を任意の方位に設けることができる。   Further, the screw shaft 32 is provided so as not to protrude downward from the base portion 26 of the installation base portion 23 in the entire adjustment movable range. For this reason, as shown in FIG. 1, if a space formed between the ground surface and the installation base 23 is used on the tripod of the base 26, a torque transmission path for turning the screw shaft 32 is provided in an arbitrary direction. be able to.

ねじ軸32が設置基部23の前方に配置されているが、可動部21に装着された可搬型地球局10の後方から、地表面と設置基部23間の空間を通して、ねじ軸32の下端部までトルク伝達経路を設けることができる。トルク伝達経路は、自在継手部41、着脱式アダプタ42、43、入力端44からなる。   The screw shaft 32 is arranged in front of the installation base 23, but from the rear of the portable earth station 10 mounted on the movable portion 21 to the lower end of the screw shaft 32 through the space between the ground surface and the installation base 23. A torque transmission path can be provided. The torque transmission path includes a universal joint portion 41, detachable adapters 42 and 43, and an input end 44.

図2(b)、図4に示すように、この実施例は、着脱式アダプタ42、43を備えているので、ねじ軸32に至るトルク伝達経路の入力端44を可動部21の調整回動範囲の全域で可搬型地球局10よりも後方に設けることができる。   As shown in FIGS. 2 (b) and 4, this embodiment includes the detachable adapters 42 and 43, so that the input end 44 of the torque transmission path to the screw shaft 32 is adjusted and rotated by the movable portion 21. It can be provided behind the portable earth station 10 in the entire range.

アダプタ42は、入力端44の回転軸線に直交する回転軸線の回転出力を行う90°変換アダプタからなる。アダプタ43は、延長ロッドからなる。入力端44は、手回し用のハンドルからなる。入力端44に代えて、電動ねじ回し具を接続することもできる。この場合、アダプタ42、43は、電動ドライバー用の市販品を適宜に利用すればよい。アダプタ42、43は、適宜に省略、長さ変更することができる。例えば、図1に二点鎖線でアダプタ42、43’を示すように、受信レベル表示部13と同側からねじ軸32を回したい場合、後方から回す場合と比して、作業員と受信レベル表示部13との左右方向距離を離して表示の視認性を高めるため、アダプタ43よりも長いアダプタ43’を用いればよい。   The adapter 42 is formed of a 90 ° conversion adapter that performs rotation output of a rotation axis perpendicular to the rotation axis of the input end 44. The adapter 43 consists of an extension rod. The input end 44 is composed of a handle for turning by hand. An electric screwdriver can be connected instead of the input end 44. In this case, as the adapters 42 and 43, commercially available products for electric drivers may be appropriately used. The adapters 42 and 43 can be appropriately omitted and the length can be changed. For example, when the screw shaft 32 is to be turned from the same side as the reception level display unit 13 as shown by the two-dot chain line in FIG. 1, the worker and the reception level are compared with the case of turning from the rear. An adapter 43 ′ that is longer than the adapter 43 may be used in order to increase the visibility of the display by separating the distance in the left-right direction from the display unit 13.

上述のように、この実施例は、図2(b)、図4に示す如く、ねじ軸32の螺進を可動部21の回動に変換してアンテナ11の仰角を変更することができるため、可搬型地球局10が装着された可動部21を作業員が直接に動かすことはなく、ねじ軸32を回すだけで済むので、作業員の負担を大幅に軽減することができる。また、送りねじ機構で可動部21を回動させるため、Ku帯の静止衛星にアンテナ11を向けるのに十分な精度で仰角の微調整が可能である。可搬型地球局10が装着された状態で可動部21を動かせるナット31及びねじ軸32の螺合なので、アンテナ11の仰角を静止衛星に応じた角度に定めた後も螺合位置が維持される。したがって、可搬型地球局10の重量で不意に可動部21が回ってアンテナ11の仰角が狂う心配もない。単独作業の場合であっても、ねじ回し具を兼ねた入力端44に適宜のアダプタ42、43(場合によっては自在継手部41)を装着すれば、作業員は、可搬型地球局10の後方に占位して上半身を軽く傾けるか、斜め後方に占位することで受信レベル表示部13を視ながらアンテナ11の仰角調整を行うことができる。したがって、作業員は、受信レベル表示部13の表示を参照しながら、アンテナ11の仰角微調整を容易に行うことができる。ねじ軸32を回すだけなので、手動でも作業員単独での調整作業が可能であり、被災地に設置する際の電力網の利用可否、電動ねじ回し具の有無を問わず、容易な調整が可能である。   As described above, in this embodiment, the elevation angle of the antenna 11 can be changed by converting the screw shaft 32 to turn of the movable portion 21 as shown in FIGS. The operator does not directly move the movable portion 21 to which the portable earth station 10 is mounted, and it is only necessary to turn the screw shaft 32, so that the burden on the operator can be greatly reduced. Further, since the movable portion 21 is rotated by the feed screw mechanism, the elevation angle can be finely adjusted with sufficient accuracy to point the antenna 11 at the Ku-band geostationary satellite. Since the nut 31 and the screw shaft 32 that can move the movable portion 21 with the portable earth station 10 mounted are screwed, the screwing position is maintained even after the elevation angle of the antenna 11 is set to an angle corresponding to the geostationary satellite. . Therefore, there is no fear that the movable portion 21 will rotate unexpectedly due to the weight of the portable earth station 10 and the elevation angle of the antenna 11 will be out of order. Even in the case of a single operation, if the appropriate adapters 42 and 43 (or the universal joint portion 41 in some cases) are attached to the input end 44 that also serves as a screwdriver, the worker can move to the rear of the portable earth station 10. The elevation angle of the antenna 11 can be adjusted while viewing the reception level display unit 13 by slightly tilting the upper body and tilting the upper body obliquely backward. Therefore, the worker can easily finely adjust the elevation angle of the antenna 11 while referring to the display of the reception level display unit 13. Since only the screw shaft 32 is turned, adjustments can be made manually by a worker alone, and easy adjustment is possible regardless of the availability of the power grid when installing in the disaster area and the presence or absence of an electric screwdriver. is there.

この考案の技術的範囲は、上述の実施形態に限定されず、実用新案登録請求の範囲の記載に基く技術的思想の範囲内での全ての変更を含むものである。   The technical scope of the present invention is not limited to the above-described embodiment, but includes all modifications within the scope of the technical idea based on the description of the claims of the utility model registration.

10 可搬型地球局
11 アンテナ
12 ケーシング
13 受信レベル表示部
20 地球局設置器具
21 可動部
22 調整軸
23 設置基部
31 ナット
32 ねじ軸
33 揺動軸
35 回動軸
41 自在継手部
42、43 アダプタ
44 入力端
DESCRIPTION OF SYMBOLS 10 Portable earth station 11 Antenna 12 Casing 13 Reception level display part 20 Earth station installation tool 21 Movable part 22 Adjustment shaft 23 Installation base 31 Nut 32 Screw shaft 33 Oscillation shaft 35 Rotation shaft 41 Universal joint part 42, 43 Adapter 44 Input terminal

Claims (5)

静止衛星と送受信を行う可搬型地球局(10)に備わるアンテナ(11)の仰角を調整するために用いる可搬型の地球局設置器具(20)であって、
前記アンテナ(11)が固定された前記可搬型地球局(10)を着脱可能な可動部(21)と、
前記可動部(21)の調整軸(22)を保持する設置基部(23)と、
前記設置基部(23)に設けられたナット(31)に対するねじ軸(32)の螺進を前記可動部(21)の前記調整軸回りの回動に変換する仰角調整機構とを備え、
前記可搬型地球局(10)が前記可動部(21)に装着された状態で前記ねじ軸(32)を回すことにより、前記アンテナ(11)の仰角を静止衛星に応じた角度に定めることができることを特徴とする地球局設置器具。
A portable earth station installation device (20) used for adjusting an elevation angle of an antenna (11) provided in a portable earth station (10) that transmits and receives with a geostationary satellite,
A movable part (21) to which the portable earth station (10) to which the antenna (11) is fixed is detachable;
An installation base (23) for holding the adjustment shaft (22) of the movable part (21);
An elevation angle adjustment mechanism that converts the screw shaft (32) to the nut (31) provided on the installation base (23) to turn around the adjustment shaft of the movable portion (21),
The elevation angle of the antenna (11) is set to an angle corresponding to a geostationary satellite by turning the screw shaft (32) in a state where the portable earth station (10) is mounted on the movable part (21). Earth station installation equipment characterized by being able to.
前記可搬型地球局(10)は、ケーシング(12)の前記調整軸(22)に沿った左右方向の側面に固定された受信レベル表示部(13)を有し、
前記ねじ軸(32)に至るトルク伝達経路の入力端(44)を前記可動部(21)の調整回動範囲の全域で前記可搬型地球局(10)よりも後方に設ける着脱式アダプタ(42、43)を備えた請求項1に記載の地球局設置器具。
The portable earth station (10) has a reception level display section (13) fixed to a lateral side surface along the adjustment axis (22) of the casing (12),
A detachable adapter (42) provided with an input end (44) of a torque transmission path reaching the screw shaft (32) behind the portable earth station (10) in the entire adjustment rotation range of the movable portion (21). 43) The earth station installation device according to claim 1, further comprising:
前記仰角調整機構は、前記設置基部(23)と前記左右方向の揺動軸(33)で連結された前記ナット(31)と、前記可動部(21)と前記左右方向の回動軸(35)で連結された前記ねじ軸(32)とからなり、
前記ナット(31)及び前記ねじ軸(32)は、前記可動部(21)に装着された前記可搬型地球局(10)の下方に位置する請求項2に記載の地球局設置器具。
The elevation angle adjusting mechanism includes the nut (31) connected to the installation base (23) and the left-right swing shaft (33), the movable portion (21), and the left-right rotation shaft (35). ) Connected with the screw shaft (32),
The earth station installation device according to claim 2, wherein the nut (31) and the screw shaft (32) are located below the portable earth station (10) attached to the movable part (21).
前記着脱式アダプタとして、前記入力端(44)の回転軸線に直交する回転軸線の回転出力を行う90°変換アダプタ(42)を有し、
前記トルク伝達経路は、前記ねじ軸(32)と前記90°変換アダプタ(42)との間に介在する自在継手部(41)を有する請求項3に記載の地球局設置器具。
As the detachable adapter, it has a 90 ° conversion adapter (42) for performing rotation output of a rotation axis perpendicular to the rotation axis of the input end (44),
The earth station installation instrument according to claim 3, wherein the torque transmission path includes a universal joint (41) interposed between the screw shaft (32) and the 90 ° conversion adapter (42).
前記ナット(31)及び前記ねじ軸(32)を前記設置基部(23)及び前記可動部(21)に対して着脱可能とした請求項3又は4に記載の地球局設置器具。   The earth station installation instrument according to claim 3 or 4, wherein the nut (31) and the screw shaft (32) are detachable from the installation base (23) and the movable part (21).
JP2010008477U 2010-12-28 2010-12-28 Earth station equipment Expired - Fee Related JP3166595U (en)

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