JP2006324177A - Vacuum valve - Google Patents

Vacuum valve Download PDF

Info

Publication number
JP2006324177A
JP2006324177A JP2005147842A JP2005147842A JP2006324177A JP 2006324177 A JP2006324177 A JP 2006324177A JP 2005147842 A JP2005147842 A JP 2005147842A JP 2005147842 A JP2005147842 A JP 2005147842A JP 2006324177 A JP2006324177 A JP 2006324177A
Authority
JP
Japan
Prior art keywords
movable
fixed
energizing shaft
vacuum
vacuum valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2005147842A
Other languages
Japanese (ja)
Other versions
JP4653558B2 (en
Inventor
Kosuke Sasage
浩資 捧
Kiyoshi Osabe
清 長部
Toru Kamikawaji
徹 上川路
Keisei Seki
経世 関
Kiyotaka Miyata
清隆 宮田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba IT and Control Systems Corp
Original Assignee
Toshiba Corp
Toshiba IT and Control Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Toshiba IT and Control Systems Corp filed Critical Toshiba Corp
Priority to JP2005147842A priority Critical patent/JP4653558B2/en
Publication of JP2006324177A publication Critical patent/JP2006324177A/en
Application granted granted Critical
Publication of JP4653558B2 publication Critical patent/JP4653558B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a vacuum valve short in an axis direction with a conductive current capacity improved. <P>SOLUTION: The vacuum valve is provided with a vacuum insulating vessel 1, fixed-side sealing metal fittings 2 sealed at either open face of the vacuum insulating vessel 1, a movable-side sealing metal fitting 3, a fixed-side conductive axis 4 fixed in penetration to the fixed-side sealing metal fittings 2, a fixed-side contact 5 fixed to an end of the fixed-side conductive axis 4, a movable-side conductive axis 7 penetrating through a center opening 3a of the movable-side sealing metal fitting 3, and movable-side contact 6 firmly fixed to an end of the movable-side conductive axis 7, a bellows 8 with its one end airtightly fixed to the center opening 3a and with the other end airtightly fixed to the movable-side conductive axis 7, a movable-side contact conductor 20 in sliding contact with a movable-side outer conductor 13 fitted at an end of the movable conductive axis 7 with a larger radius than the movable-side conductive axis 7, and a guide 21 inserted into the center opening 3a with its peripheral direction divided in plural. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、真空バルブに係り、特に外部導体との通電電流容量を向上し得る改良した真空バルブに関する。   The present invention relates to a vacuum valve, and more particularly, to an improved vacuum valve that can improve a current carrying capacity with an external conductor.

代表的な真空バルブの断面図を示す図６において、筒状の真空絶縁容器１の両端開口面には、固定側封着金具２と可動側封着金具３とが気密に封着されている。   In FIG. 6 showing a cross-sectional view of a typical vacuum valve, a fixed-side sealing fitting 2 and a movable-side sealing fitting 3 are hermetically sealed at both end opening surfaces of a cylindrical vacuum insulating container 1. .

固定側封着金具２には、一方の電路となる固定側通電軸４が気密に貫通固定され、真空絶縁容器１内の固定側通電軸４端に固定側接点５が固着されている。この固定側接点５と対向して、接離自在の可動側接点６が他方の電路となる可動側通電軸７端に固着されている。   A fixed-side energizing shaft 4 serving as one electric circuit is hermetically penetrated and fixed to the fixed-side sealing metal fitting 2, and a fixed-side contact 5 is fixed to the end of the fixed-side energizing shaft 4 in the vacuum insulating container 1. Opposite to the fixed side contact 5, a movable side contact 6 that is detachable is fixed to the end of the movable side energizing shaft 7 serving as the other electric circuit.

可動側通電軸７の真空絶縁容器１内中間部には、伸縮自在のベローズ８の一方端が気密に取り付けられている。ベローズ８の他方端は、可動側封着金具３の中央開口部３ａに気密に取り付けられている。これにより、内部圧力１０−２Ｐａ以下の真空度を維持しながら可動側通電軸７を軸方向に移動させることが可能になっている。 One end of an expandable / contractible bellows 8 is airtightly attached to the middle portion of the movable side energizing shaft 7 in the vacuum insulating container 1. The other end of the bellows 8 is airtightly attached to the central opening 3 a of the movable side sealing fitting 3. Thereby, it is possible to move the movable-side energizing shaft 7 in the axial direction while maintaining a vacuum degree of an internal pressure of 10 −2 Pa or less.

また、真空絶縁容器１内面中間部に設けた突出部１ａには、両接点５、６を包囲するように筒状のアークシールド９が設けられ、両接点５、６の電流開閉時に発生する金属蒸気が真空絶縁容器１の内面に付着して、沿面の絶縁抵抗が低下するのを防止している。   In addition, a cylindrical arc shield 9 is provided on the projecting portion 1 a provided in the middle portion of the inner surface of the vacuum insulating container 1 so as to surround both the contacts 5, 6. The vapor is prevented from adhering to the inner surface of the vacuum insulating container 1 to reduce the creeping insulation resistance.

また、可動側通電軸７が軸方向に直線的に移動できるように、従来、可動側封着金具３の中央開口部３ａには、断面Ｌ字状の環状のガイド１０が設けられている。このガイド１０は、筒部１０ａの内径が可動側通電軸７の外径よりも僅かに大きく、また、鍔部１０ｂが可動側封着金具３に固定されている（例えば、特許文献１参照。）。   Conventionally, an annular guide 10 having an L-shaped cross section is provided in the central opening 3a of the movable side sealing fitting 3 so that the movable side energizing shaft 7 can move linearly in the axial direction. In the guide 10, the inner diameter of the cylindrical portion 10a is slightly larger than the outer diameter of the movable-side energizing shaft 7, and the flange portion 10b is fixed to the movable-side sealing fitting 3 (see, for example, Patent Document 1). ).

一方、真空絶縁容器１外の固定側通電軸４端には、他の電気機器との接続を行う固定側外部導体１１がボルト１２で締付けられる。また、真空絶縁容器１外の可動側通電軸７には、他の電気機器との接続を行う可動側外部導体１３が摺動形接触子１４を介して設けられる。可動側通電軸７が可動側外部導体１３の開口穴を貫通した状態を点線で示す。   On the other hand, a fixed-side outer conductor 11 that is connected to another electric device is fastened with a bolt 12 to the end of the fixed-side energizing shaft 4 outside the vacuum insulating container 1. In addition, the movable-side energizing shaft 7 outside the vacuum insulating container 1 is provided with a movable-side outer conductor 13 for connecting to other electric devices via a sliding contact 14. A state in which the movable energizing shaft 7 penetrates the opening hole of the movable outer conductor 13 is indicated by a dotted line.

そして、真空バルブの通電電流容量を例えば４０００Ａを超える容量にしようとすると、固定側外部導体１１および可動側外部導体１３の通電電流容量も向上させる必要から、それぞれの外部導体１１および１３では、断面積の大きいものが用いられる。更には、可動側外部導体１３と可動側通電軸７間では、摺動形接触子１４が接触する面積を大きくしなければならず、摺動形接触子１４が多段の構成となる。その結果、可動側通電軸７の軸方向が長くなり、更には、摺動形接触子１４などの部品点数が増えてコストアップにつながっていた。   If the energizing current capacity of the vacuum valve exceeds, for example, 4000 A, the energizing current capacity of the fixed-side outer conductor 11 and the movable-side outer conductor 13 must be improved. A thing with a large area is used. Furthermore, between the movable side outer conductor 13 and the movable side energizing shaft 7, the area in which the sliding contact 14 comes into contact has to be increased, and the sliding contact 14 has a multi-stage configuration. As a result, the axial direction of the movable energizing shaft 7 becomes longer, and the number of parts such as the sliding contact 14 increases, leading to an increase in cost.

これを解決するものとして、従来、図７に示すように、可動側通電軸７端を雄ネジ加工し、外径が可動側通電軸７よりも太径で、内周に雌ネジを設けたスリーブ１５を取り付けるものが知られている（例えば、特許文献２参照。）。スリーブ１５の外周には、摺動形接触子１４を介して可動側外部導体１３が設けられる。スリーブ１５が可動側外部導体１３の開口穴を貫通した状態を点線で示す。なお、この場合、ガイド１０を可動側封着金具３に固定した後、可動側通電軸７端にスリーブ１５が取り付けられる。   In order to solve this problem, conventionally, as shown in FIG. 7, the end of the movable energizing shaft 7 is male threaded, the outer diameter is larger than that of the movable energizing shaft 7, and a female screw is provided on the inner periphery. A device for attaching a sleeve 15 is known (for example, see Patent Document 2). A movable outer conductor 13 is provided on the outer periphery of the sleeve 15 via a sliding contact 14. A state in which the sleeve 15 penetrates the opening hole of the movable outer conductor 13 is indicated by a dotted line. In this case, after fixing the guide 10 to the movable-side sealing fitting 3, the sleeve 15 is attached to the end of the movable-side energizing shaft 7.

これにより、スリーブ１５が可動側通電軸７よりも太径のため、可動側外部導体１３との接触面積が大きくなり、摺動形接触子１４の段数を図６よりも抑制することができ、可動側通電軸７の軸方向を短くすることができる。   Thereby, since the sleeve 15 is larger in diameter than the movable side energizing shaft 7, the contact area with the movable outer conductor 13 is increased, and the number of steps of the sliding contact 14 can be suppressed as compared with FIG. The axial direction of the movable energizing shaft 7 can be shortened.

しかしながら、可動側通電軸７とスリーブ１５とは、ネジ通電となるため、強固に締付けなければならず、作業が困難となっていた。即ち、スリーブ１５を取り付けるときには、可動側通電軸７が回転しないように、専用の治具で可動側通電軸７を固定しなければならなかった。可動側通電軸７が回転してしまうと、ベローズ８が損傷して真空度が維持できなくなったり、また、スリーブ１５の締付けが弱いと、ネジ部で発熱を起こしたりすることになる。
特開２００２−３３０３４号公報 （第３ページ、図１） 特開平６−１０３８６３号公報 （第２ページ、図３） However, since the movable-side energizing shaft 7 and the sleeve 15 are energized with screws, they must be firmly tightened, and the operation is difficult. That is, when the sleeve 15 is attached, the movable side energizing shaft 7 must be fixed by a dedicated jig so that the movable side energizing shaft 7 does not rotate. If the movable-side energizing shaft 7 rotates, the bellows 8 is damaged and the degree of vacuum cannot be maintained, and if the sleeve 15 is weakly tightened, heat is generated at the screw portion.
JP 2002-33034 A (3rd page, FIG. 1) JP-A-6-103863 (second page, FIG. 3)

上記の従来の真空バルブにおいては、次のような問題がある。
真空バルブの通電電流容量を増大させると、可動側通電軸７の軸方向が長くなっていた。また、スリーブ１５を取り付ける場合には、取り付け作業が困難であった。
このため、可動側通電軸７を長くせず、また、スリーブ１５の取り付け作業を不要として、通電電流容量を向上し得る真空バルブが望まれていた。 The above-described conventional vacuum valve has the following problems.
When the energization current capacity of the vacuum valve was increased, the axial direction of the movable energization shaft 7 was long. Further, when the sleeve 15 is attached, the attaching operation is difficult.
For this reason, there has been a demand for a vacuum valve that does not lengthen the movable-side energizing shaft 7 and can improve the energizing current capacity without the need for attaching the sleeve 15.

本発明は上記問題を解決するためになされたもので、真空バルブの軸方向を短くし、通電電流容量を向上し得る真空バルブを提供することを目的とする。   The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum valve that can shorten the axial direction of the vacuum valve and improve the current carrying capacity.

上記目的を達成するために、本発明の真空バルブは、筒状の真空絶縁容器と、前記真空絶縁容器の一方の開口面に封着された固定側封着金具と、前記固定側封着金具に貫通固定された固定側通電軸と、前記固定側通電軸端の前記真空絶縁容器内に固着された固定側接点と、前記真空絶縁容器の他方の開口面に封着された可動側封着金具と、前記可動側封着金具の中央開口部を移動自在に貫通する可動側通電軸と、前記固定側接点に対向して前記可動側通電軸端の前記真空絶縁容器内に固着された可動側接点と、前記中央開口部に一方端が気密に固定されるとともに、他方端が前記可動側通電軸に気密に固定された伸縮自在のベローズと、前記真空絶縁容器外の前記可動通電軸端に設けられるとともに、前記可動側通電軸よりも太径であって、且つ可動側外部導体と摺動接触する可動側接触導体と、前記可動側通電軸を軸方向に移動させるように前記中央開口部に挿入されるとともに、円周方向が複数に分割されたガイドとを具備したことを特徴とする。   In order to achieve the above object, a vacuum valve according to the present invention includes a cylindrical vacuum insulating container, a fixed-side sealing metal fitting sealed on one opening surface of the vacuum insulating container, and the fixed-side sealing metal fitting. A fixed-side energizing shaft that is fixedly penetrating into the fixed-side energizing shaft, a fixed-side contact fixed to the end of the fixed-side energizing shaft in the vacuum insulating container, and a movable-side sealing that is sealed to the other opening surface of the vacuum insulating container A movable side energizing shaft movably penetrating through the central opening of the movable side sealing metal fitting, and a movable fixed in the vacuum insulating container at the end of the movable side energizing shaft opposite the fixed side contact A side contact, a telescopic bellows whose one end is airtightly fixed to the central opening and whose other end is airtightly fixed to the movable side energizing shaft, and the movable energizing shaft end outside the vacuum insulating container And is larger in diameter than the movable-side energizing shaft, A movable-side contact conductor that is in sliding contact with the movable-side outer conductor, a guide that is inserted into the central opening so as to move the movable-side energizing shaft in the axial direction, and the guide is divided into a plurality of circumferential directions. It is characterized by comprising.

本発明によれば、真空絶縁容器外の可動側通電軸端に、可動側外部導体と摺動接触する可動側通電軸よりも太径の可動側接触導体を固定し、可動側通電軸が貫通する可動側封着金具の中央開口部に、この可動側通電軸を軸方向に直線的に移動させるための複数分割されたガイドを挿入しているので、真空バルブの軸方向を短くでき、通電電流容量を向上させることができる。   According to the present invention, the movable-side conductive shaft having a larger diameter than the movable-side conductive shaft that is in sliding contact with the movable-side outer conductor is fixed to the movable-side conductive shaft end outside the vacuum insulating container, and the movable-side conductive shaft penetrates. Since the divided guide for moving the movable energizing shaft linearly in the axial direction is inserted into the central opening of the movable sealing bracket, the axial direction of the vacuum valve can be shortened, The current capacity can be improved.

以下、図面を参照して本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

先ず、本発明の実施例１に係る真空バルブを図１および図２を参照して説明する。図１（ａ）は、本発明の実施例１に係る真空バルブの構成を示す縦断面図、図１（ｂ）は、図１（ａ）のＡ−Ａ断面矢視図、図２は、本発明の実施例１に係る真空バルブの組立てを説明する図である。なお、各図において、従来と同様の構成部分については、同一符号を付した。   First, a vacuum valve according to Embodiment 1 of the present invention will be described with reference to FIGS. 1A is a longitudinal sectional view showing the configuration of a vacuum valve according to Embodiment 1 of the present invention, FIG. 1B is a sectional view taken along the line AA in FIG. 1A, and FIG. It is a figure explaining the assembly of the vacuum valve which concerns on Example 1 of this invention. In addition, in each figure, the same code | symbol was attached | subjected about the component similar to the past.

図１（ａ）、（ｂ）に示すように、例えばアルミナ磁器からなる筒状の真空絶縁容器１の両端開口面には、固定側封着金具２と可動側封着金具３とが気密に封着されている。   As shown in FIGS. 1 (a) and 1 (b), the fixed-side sealing fitting 2 and the movable-side sealing fitting 3 are hermetically sealed at both end opening surfaces of a cylindrical vacuum insulating container 1 made of, for example, alumina porcelain. Sealed.

固定側封着金具２には、一方の電路となる固定側通電軸４が気密に貫通固定され、真空絶縁容器１内の固定側通電軸４端に固定側接点５が固着されている。この固定側接点５に対向して、接離自在の可動側接点６が他方の電路となる真空絶縁容器１内の可動側通電軸７端に固着されている。   A fixed-side energizing shaft 4 serving as one electric circuit is hermetically penetrated and fixed to the fixed-side sealing metal fitting 2, and a fixed-side contact 5 is fixed to the end of the fixed-side energizing shaft 4 in the vacuum insulating container 1. Opposite to the fixed side contact 5, a movable side contact 6 that is detachable is fixed to the end of the movable side energizing shaft 7 in the vacuum insulating container 1 serving as the other electric circuit.

また、真空絶縁容器１外の可動側通電軸７端には、後述する可動側外部導体１３と摺動接触する円柱状の可動側接触導体２０が軸方向に例えばロー付けで固定されている。可動側接触導体２０の外径は、可動側通電軸７の外径よりも大きく、可動側外部導体１３との接触面積を大きくとれるようになっている。なお、可動側外部導体１３と可動側通電軸７とは、一体で加工されていてもよい。   A cylindrical movable contact conductor 20 that is in sliding contact with a movable outer conductor 13 described later is fixed to the end of the movable energizing shaft 7 outside the vacuum insulating container 1 in the axial direction by brazing, for example. The outer diameter of the movable contact conductor 20 is larger than the outer diameter of the movable energizing shaft 7 so that the contact area with the movable outer conductor 13 can be increased. The movable outer conductor 13 and the movable energizing shaft 7 may be processed integrally.

可動側通電軸７の真空絶縁容器１内中間部には、伸縮自在のベローズ８の一方端が気密に取り付けられている。ベローズ８の他方端は、可動側封着金具３の中央開口部３ａに気密に取り付けられている。これにより、内部圧力１０−２Ｐａ以下の真空度を維持しながら可動側通電軸７を軸方向に移動させることが可能になっている。可動側通電軸７の移動は、可動側接触導体２０に連結される図示しない操作機構によって行われる。 One end of an expandable / contractible bellows 8 is airtightly attached to the middle portion of the movable side energizing shaft 7 in the vacuum insulating container 1. The other end of the bellows 8 is airtightly attached to the central opening 3 a of the movable side sealing fitting 3. Thereby, it is possible to move the movable-side energizing shaft 7 in the axial direction while maintaining a vacuum degree of an internal pressure of 10 −2 Pa or less. The movable energizing shaft 7 is moved by an operating mechanism (not shown) connected to the movable contact conductor 20.

真空絶縁容器１内面中間部に設けた突出部１ａには、両接点５、６を包囲するように筒状のアークシールド９が例えばロー付けにより設けられ、両接点５、６の電流開閉時に発生する金属蒸気が真空絶縁容器１の内面に付着して、沿面の絶縁抵抗が低下するのを防止している。   A cylindrical arc shield 9 is provided, for example, by brazing on the projecting portion 1a provided at the inner surface intermediate portion of the vacuum insulating container 1 so as to surround both the contacts 5 and 6, and is generated when the current of the both contacts 5 and 6 is switched. The metal vapor that adheres to the inner surface of the vacuum insulation container 1 prevents the creeping insulation resistance from being lowered.

また、可動側通電軸７と可動側封着金具３間に形成される中央開口部３ａには、機械的強度を有する絶縁物からなる断面Ｌ字状の円周方向が二分割されたガイド２１が挿入されている。このガイド２１は、可動側通電軸７の外周面に沿った円弧状の円弧部２１ａと半径方向に広がる取付部２１ｂとから構成されており、二分割された円弧部２１ａを組み合わせると、その内径が可動側通電軸７の外径よりも僅かに大きくなるようになっている。   Further, in the central opening 3a formed between the movable side energizing shaft 7 and the movable side sealing fitting 3, a guide 21 in which the circumferential direction having an L-shaped cross section made of an insulator having mechanical strength is divided into two. Has been inserted. The guide 21 is composed of an arcuate arc portion 21a along the outer peripheral surface of the movable energizing shaft 7 and a mounting portion 21b extending in the radial direction. Is slightly larger than the outer diameter of the movable energizing shaft 7.

ここで、二分割されたガイド２１の円弧部２１ａを組み合わせても必ずしも間隙のない環状に形成される必要はなく、互いのガイド２１間に間隙が形成されてもよい。図１（ｂ）においては、それぞれのガイド２１が対向配置され、円弧部２１ａを組み合わせると可動側通電軸７の外周がおよそ半分程度覆われるようになっている。この状態が、可動側通電軸７を直線的に移動させることができ、また、ガイド２１を挿入する作業性上、好ましい。なお、取付部２１ｂは、それぞれ例えばエポキシ樹脂のような接着剤で可動側封着金具３に固定されている。   Here, even if the arc portions 21 a of the two divided guides 21 are combined, it is not always necessary to form an annular shape without a gap, and a gap may be formed between the guides 21. In FIG.1 (b), each guide 21 is opposingly arranged, and when the circular arc part 21a is combined, the outer periphery of the movable side electricity supply shaft 7 will be covered by about half. This state is preferable in terms of workability in which the movable energizing shaft 7 can be moved linearly and the guide 21 is inserted. In addition, the attachment part 21b is being fixed to the movable side sealing metal fitting 3, respectively, for example with adhesives, such as an epoxy resin.

一方、真空絶縁容器１外の固定側通電軸４端には、他の電気機器との接続を行う固定側外部導体１１がボルト１２で締付けられる。また、真空絶縁容器１外の可動側接触導体２０には、他の電気機器との接続を行う可動側外部導体１３が摺動形接触子１４を介して設けられる。可動側接触導体２０が可動側外部導体１３の開口穴を貫通した状態を点線で示す。   On the other hand, a fixed-side outer conductor 11 that is connected to another electric device is fastened with a bolt 12 to the end of the fixed-side energizing shaft 4 outside the vacuum insulating container 1. Further, the movable side contact conductor 20 outside the vacuum insulating container 1 is provided with a movable side outer conductor 13 for connecting with other electric devices via a sliding contact 14. A state in which the movable contact conductor 20 penetrates the opening hole of the movable outer conductor 13 is indicated by a dotted line.

次に、ガイド２１を挿入する方法を図２を参照して説明する。   Next, a method for inserting the guide 21 will be described with reference to FIG.

図２に示すように、先ず、可動側通電軸７と可動側接触導体２０とを図示下方向に移動させ、可動側封着金具３と可動側接触導体２０間を広げる。そして、可動側通電軸７と可動側封着金具３間に形成される中央開口部３ａにガイド２１の円弧部２１ａを挿入し、取付部２１ｂを可動側封着金具３に固定する。固定後は、可動側通電軸７を図示上方向の元の位置に戻す。   As shown in FIG. 2, first, the movable-side energizing shaft 7 and the movable-side contact conductor 20 are moved downward in the figure to widen the space between the movable-side sealing fitting 3 and the movable-side contact conductor 20. Then, the arc portion 21 a of the guide 21 is inserted into the central opening 3 a formed between the movable-side energizing shaft 7 and the movable-side sealing bracket 3, and the mounting portion 21 b is fixed to the movable-side sealing bracket 3. After fixing, the movable side energizing shaft 7 is returned to the original position in the upward direction in the figure.

これにより、可動側接触導体２０が可動側通電軸７よりも太径であっても、ガイド２１を中央開口部３ａに容易に挿入することができる。そして、ガイド２１の円弧部２１ａを組み合わせると、その内径が可動側通電軸７の外径より僅かに大きくなり、可動側通電軸７を軸方向に直線的に移動させることができる。可動側通電軸７が直線的に移動すれば、可動側接点６と固定側接点５との芯ずれがなく、耐電圧などの性能の高い真空バルブとすることができる。   Thereby, even if the movable contact conductor 20 has a larger diameter than the movable conductive shaft 7, the guide 21 can be easily inserted into the central opening 3a. When the circular arc portion 21a of the guide 21 is combined, the inner diameter becomes slightly larger than the outer diameter of the movable energizing shaft 7, and the movable energizing shaft 7 can be moved linearly in the axial direction. If the movable energizing shaft 7 moves linearly, there is no misalignment between the movable contact 6 and the fixed contact 5, and a vacuum valve having high performance such as withstand voltage can be obtained.

また、可動側接触導体２０が可動側通電軸７よりも太径のため、可動側外部導体１３との接触面積が大きくなり、通電電流容量を増大させても摺動形接触子１４の段数を抑制することができ、可動側通電軸７の軸方向を短くすることができる。   Further, since the movable contact conductor 20 has a larger diameter than the movable energizing shaft 7, the contact area with the movable outer conductor 13 is increased, and the number of steps of the sliding contact 14 can be increased even when the energizing current capacity is increased. This can be suppressed, and the axial direction of the movable energizing shaft 7 can be shortened.

更には、この真空バルブを遮断装置や開閉装置に用いることにより、これらの装置の全体形状を縮小することができる。なお、ガイド２１においては、従来の環状に比べて材料費を安価とすることができる。   Furthermore, the overall shape of these devices can be reduced by using this vacuum valve for a shut-off device or an opening / closing device. In addition, in the guide 21, material cost can be made cheap compared with the conventional cyclic | annular form.

上記実施例１の真空バルブによれば、真空絶縁容器１外の可動側通電軸７端にこの可動側通電軸７よりも太径の可動側接触導体２０を設け、二分割したガイド２１を可動側封着金具３の中央開口部３ａにそれぞれ挿入し、可動側通電軸７が軸方向に直線的に移動できるようにしているので、可動側通電軸７の軸方向の長さを短くできるとともに、可動側外部導体１３との接触面積が大きくなり、通電電流容量を向上させることができる。   According to the vacuum valve of the first embodiment, the movable-side contact conductor 20 having a diameter larger than that of the movable-side conductive shaft 7 is provided at the end of the movable-side conductive shaft 7 outside the vacuum insulating container 1, and the divided guide 21 is movable. Since the movable energizing shaft 7 can be linearly moved in the axial direction by being inserted into the central opening 3a of the side sealing metal fitting 3, the axial length of the movable energizing shaft 7 can be shortened. The contact area with the movable outer conductor 13 is increased, and the current carrying capacity can be improved.

次に、本発明の実施例２に係る真空バルブを図３を参照して説明する。図３（ａ）は、本発明の実施例２に係る真空バルブの構成を示す要部縦断面図、図３（ｂ）は、図３（ａ）のＡ−Ａ断面矢視図である。なお、この実施例２が実施例１と異なる点は、ガイドに取り付けの位置決めを設けたことである。図３において、実施例１と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。   Next, a vacuum valve according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 3A is a longitudinal sectional view of an essential part showing a configuration of a vacuum valve according to Embodiment 2 of the present invention, and FIG. 3B is a cross-sectional view taken along the line AA in FIG. The second embodiment is different from the first embodiment in that the guide is provided with a positioning for attachment. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図３（ａ）、（ｂ）に示すように、ガイド２１の取付部２１ｂには、可動側封着金具３と対向する面に凹部２１ｃが設けられている。また、凹部２１ｃに対向する可動側封着金具３には、凸部３ｂが設けられている。   As shown in FIGS. 3A and 3B, the mounting portion 21 b of the guide 21 is provided with a recess 21 c on the surface facing the movable side sealing fitting 3. Moreover, the convex part 3b is provided in the movable side sealing metal fitting 3 which opposes the recessed part 21c.

そして、可動側封着金具３の凸部３ｂにガイド２１の凹部２１ｃを嵌め合わせ、ガイド２１の取り付け位置を決めている。なお、取付部２１ｂに凸部、可動側封着金具３に凹部を設けてもよい。これらの凸部、凹部は、円周方向に配置する二分割されたガイド２１の位置を決めるためのものであり、位置決め手段と定義する。   Then, the concave portion 21 c of the guide 21 is fitted into the convex portion 3 b of the movable side sealing fitting 3 to determine the mounting position of the guide 21. In addition, you may provide a convex part in the attaching part 21b, and a recessed part in the movable side sealing metal fitting 3. FIG. These convex portions and concave portions are for determining the position of the guide 21 divided in two in the circumferential direction, and are defined as positioning means.

上記実施例２の真空バルブによれば、実施例１による効果のほかに、二分割したそれぞれのガイド２１を円周方向に取り付けるための位置決めが容易となる。   According to the vacuum valve of the second embodiment, in addition to the effects of the first embodiment, positioning for attaching each of the two divided guides 21 in the circumferential direction becomes easy.

次に、本発明の実施例３に係る真空バルブを図４を参照して説明する。図４（ａ）は、本発明の実施例３に係る真空バルブの構成を示す要部縦断面図、図４（ｂ）は、図４（ａ）のＡ−Ａ断面矢視図である。なお、この実施例３が実施例１と異なる点は、ガイドに切り欠き部を設けたことである。図４において、実施例１と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。   Next, a vacuum valve according to Embodiment 3 of the present invention will be described with reference to FIG. 4A is a longitudinal sectional view of the main part showing the configuration of a vacuum valve according to Embodiment 3 of the present invention, and FIG. 4B is a cross-sectional view taken along the line AA in FIG. 4A. The third embodiment is different from the first embodiment in that a notch is provided in the guide. In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図４（ａ）、（ｂ）に示すように、ガイド２１の取付部２１ｂには、切り欠き部２１ｄが設けられている。また、取付部２１ｂは、切り欠き部２１ｄに嵌め合わされるツメ部２２ａを有する例えばステンレス製の環状のキャップ２２で覆われている。キャップ２２の中央開口部２２ｂの内径は、可動側接触導体２０の外径よりも僅かに大きくなっている。   As shown in FIGS. 4A and 4B, the mounting portion 21 b of the guide 21 is provided with a notch portion 21 d. The attachment portion 21b is covered with an annular cap 22 made of, for example, stainless steel having a claw portion 22a fitted into the notch portion 21d. The inner diameter of the central opening 22 b of the cap 22 is slightly larger than the outer diameter of the movable contact conductor 20.

そして、ガイド２１を可動側封着金具３の中央開口部３ａに挿入後、可動側接触導体２０にキャップ２２の中央開口部２２ｂを貫通させ、切り欠き部２１ｄにツメ部２２ａを嵌め合わせ、ガイド２１の位置を決めている。その後、キャップ２２の外周を可動側封着金具３に例えば溶接で固定している。ここで、ツメ部２２ａは、キャップ２２が可動側封着金具３に固定されているので、可動側封着金具３に設けられたものと同様の解釈をすることができる。   Then, after the guide 21 is inserted into the central opening 3a of the movable-side sealing fitting 3, the central opening 22b of the cap 22 is passed through the movable-side contact conductor 20, and the claw portion 22a is fitted into the notch 21d. The position of 21 is decided. Thereafter, the outer periphery of the cap 22 is fixed to the movable side sealing fitting 3 by, for example, welding. Here, since the cap 22 is fixed to the movable-side sealing metal fitting 3, the claw portion 22 a can be interpreted in the same manner as that provided on the movable-side sealing metal fitting 3.

なお、ガイド２１の取付部２１ｂにツメ部を設け、キャップ２２にツメ部が嵌め合わせられる切り欠き部を設けてもよい。これらのツメ部、切り欠き部は、円周方向に配置する二分割されたガイド２１の位置を決めるためのものであり、実施例２と同様に、位置決め手段と定義する。   In addition, a claw part may be provided in the attachment part 21b of the guide 21 and a notch part in which the claw part is fitted to the cap 22 may be provided. These claw portions and cutout portions are for determining the position of the guide 21 divided in two in the circumferential direction, and are defined as positioning means as in the second embodiment.

上記実施例３の真空バルブによれば、実施例１による効果のほかに、二分割したそれぞれのガイド２１を円周方向に取り付けるための位置決めが容易となる。   According to the vacuum valve of the third embodiment, in addition to the effects of the first embodiment, positioning for attaching each of the two divided guides 21 in the circumferential direction becomes easy.

次に、本発明の実施例４に係る真空バルブを図５を参照して説明する。図５（ａ）は、本発明の実施例４に係る真空バルブの構成を示す要部縦断面図、図５（ｂ）は、図５（ａ）のＡ−Ａ断面矢視図である。なお、この実施例４が実施例１と異なる点は、可動側通電軸に溝部を設けたことである。図５において、実施例１と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。   Next, a vacuum valve according to Embodiment 4 of the present invention will be described with reference to FIG. FIG. 5A is a longitudinal sectional view of the main part showing the configuration of a vacuum valve according to Embodiment 4 of the present invention, and FIG. 5B is a cross-sectional view taken along the line AA in FIG. The fourth embodiment is different from the first embodiment in that a groove is provided on the movable side energizing shaft. In FIG. 5, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図５（ａ）、（ｂ）に示すように、可動側通電軸７には、可動側封着金具３と対向する部分の軸方向に、それぞれのガイド２１の円弧部２１ａが挿入される溝部７ａが設けられている。   As shown in FIGS. 5 (a) and 5 (b), a groove portion in which the arc portion 21a of each guide 21 is inserted in the movable-side energizing shaft 7 in the axial direction of the portion facing the movable-side sealing fitting 3. 7a is provided.

上記実施例４の真空バルブによれば、実施例１による効果のほかに、二分割したそれぞれのガイド２１の取り付けが容易となる。また、可動側通電軸７の断面積が溝部７ａを形成する断面積分だけの減少となるため、通電電流容量の低下を抑制できる。   According to the vacuum valve of the fourth embodiment, in addition to the effects of the first embodiment, it is easy to attach each of the two divided guides 21. Further, since the cross-sectional area of the movable-side energizing shaft 7 is reduced by only the cross-sectional integral forming the groove 7a, it is possible to suppress a decrease in the energizing current capacity.

なお、本発明は、上記実施例に限定されるものではなく、発明の要旨を逸脱しない範囲で、種々変形して実施することができる。上記実施例では、ガイド２１を二分割して説明したが、三分割以上の複数に分割し、これらを円周上に配置しても可動側通電軸７を軸方向に直線的に移動させることができる。   In addition, this invention is not limited to the said Example, In the range which does not deviate from the summary of invention, it can implement in various deformation | transformation. In the above embodiment, the guide 21 is divided into two parts. However, even if the guide 21 is divided into three or more parts and arranged on the circumference, the movable-side conductive shaft 7 is moved linearly in the axial direction. Can do.

（ａ）は、本発明の実施例１に係る真空バルブの構成を示す縦断面図、（ｂ）は、（ａ）のＡ−Ａ断面矢視図。(A) is a longitudinal cross-sectional view which shows the structure of the vacuum valve which concerns on Example 1 of this invention, (b) is an AA cross-section arrow line view of (a). 本発明の実施例１に係る真空バルブの組立てを説明する図。The figure explaining the assembly of the vacuum valve which concerns on Example 1 of this invention. （ａ）は、本発明の実施例２に係る真空バルブの構成を示す要部縦断面図、（ｂ）は、（ａ）のＡ−Ａ断面矢視図。(A) is a principal part longitudinal cross-sectional view which shows the structure of the vacuum valve which concerns on Example 2 of this invention, (b) is an AA cross-section arrow line view of (a). （ａ）は、本発明の実施例３に係る真空バルブの構成を示す要部縦断面図、（ｂ）は、（ａ）のＡ−Ａ断面矢視図。(A) is a principal part longitudinal cross-sectional view which shows the structure of the vacuum valve which concerns on Example 3 of this invention, (b) is an AA cross-sectional arrow view of (a). （ａ）は、本発明の実施例４に係る真空バルブの構成を示す要部縦断面図、（ｂ）は、（ａ）のＡ−Ａ断面矢視図。(A) is a principal part longitudinal cross-sectional view which shows the structure of the vacuum valve which concerns on Example 4 of this invention, (b) is an AA cross-sectional arrow view of (a). 従来の真空バルブの構成を示す縦断面図。The longitudinal cross-sectional view which shows the structure of the conventional vacuum valve. 従来の真空バルブの構成を示す要部縦断面図。The principal part longitudinal cross-sectional view which shows the structure of the conventional vacuum valve.

符号の説明Explanation of symbols

１ 真空絶縁容器
１ａ 突出部
２ 固定側封着金具
３ 可動側封着金具
３ａ、２２ｂ 中央開口部
３ｂ 凸部
４ 固定側通電軸
５ 固定側接点
６ 可動側接点
７ 可動側通電軸
７ａ 溝部
８ ベローズ
９ アークシールド
１０、２１ ガイド
１０ａ 筒部
１０ｂ 鍔部
１１ 固定側外部導体
１２ ボルト
１３ 可動側外部導体
１４ 摺動形接触子
１５ スリーブ
２０ 可動側接触導体
２１ａ 円弧部
２１ｂ 取付部
２１ｃ 凹部
２１ｄ 切り欠き部
２２ キャップ
２２ａ ツメ部 DESCRIPTION OF SYMBOLS 1 Vacuum insulating container 1a Protrusion part 2 Fixed side sealing metal fitting 3 Movable side sealing metal fitting 3a, 22b Center opening part 3b Convex part 4 Fixed side electricity supply shaft 5 Fixed side contact 6 Movable side contact shaft 7a Movable side electricity supply shaft 7a Groove part 8 Bellows 9 Arc shield 10, 21 Guide 10a Tube portion 10b Hook portion 11 Fixed side outer conductor 12 Bolt 13 Movable side outer conductor 14 Sliding contact 15 Sleeve 20 Movable side contact conductor 21a Arc portion 21b Mounting portion 21c Recessed portion 21d Notch 22 Cap 22a Claw part

Claims (5)

筒状の真空絶縁容器と、
前記真空絶縁容器の一方の開口面に封着された固定側封着金具と、
前記固定側封着金具に貫通固定された固定側通電軸と、
前記固定側通電軸端の前記真空絶縁容器内に固着された固定側接点と、
前記真空絶縁容器の他方の開口面に封着された可動側封着金具と、
前記可動側封着金具の中央開口部を移動自在に貫通する可動側通電軸と、
前記固定側接点に対向して前記可動側通電軸端の前記真空絶縁容器内に固着された可動側接点と、
前記中央開口部に一方端が気密に固定されるとともに、他方端が前記可動側通電軸に気密に固定された伸縮自在のベローズと、
前記真空絶縁容器外の前記可動通電軸端に設けられるとともに、前記可動側通電軸よりも太径であって、且つ可動側外部導体と摺動接触する可動側接触導体と、
前記可動側通電軸を軸方向に移動させるように前記中央開口部に挿入されるとともに、円周方向が複数に分割されたガイドとを具備したことを特徴とする真空バルブ。 A tubular vacuum insulated container;
A fixed-side sealing fitting sealed on one opening surface of the vacuum insulating container;
A fixed-side energizing shaft that is fixedly penetrated to the fixed-side sealing fitting;
A fixed-side contact fixed in the vacuum insulating container of the fixed-side energizing shaft end;
A movable side sealing fitting sealed to the other opening surface of the vacuum insulating container;
A movable-side energizing shaft that movably passes through a central opening of the movable-side sealing fitting;
A movable side contact fixed in the vacuum insulating container at the end of the movable side energizing shaft facing the fixed side contact;
A telescopic bellows, one end of which is airtightly fixed to the central opening, and the other end of which is airtightly fixed to the movable side energizing shaft,
A movable contact conductor provided at an end of the movable energizing shaft outside the vacuum insulating container, having a diameter larger than the movable energizing shaft, and slidingly contacting the movable outer conductor;
A vacuum valve comprising: a guide which is inserted into the central opening so as to move the movable-side energizing shaft in the axial direction and which is divided into a plurality of circumferential directions. 前記ガイドは、断面Ｌ字状であって、前記可動側通電軸の外周面に沿った円弧部と半径方向に広がる取付部とから構成され、
前記円弧部が前記中央開口部に挿入され、
前記取付部が前記可動側封着金具に固定されることを特徴とする請求項１に記載の真空バルブ。 The guide has an L-shaped cross section, and is composed of an arc portion along the outer peripheral surface of the movable side energizing shaft and a mounting portion extending in the radial direction,
The arc portion is inserted into the central opening;
The vacuum valve according to claim 1, wherein the attachment portion is fixed to the movable-side sealing metal fitting. 前記ガイドは、二分割されていることを特徴とする請求項１または請求項２に記載の真空バルブ。   The vacuum valve according to claim 1, wherein the guide is divided into two parts. 前記ガイドの取付部と前記可動側封着金具とに前記ガイドの位置を決める位置決め手段が設けられていることを特徴とする請求項１乃至請求項３のいずれか１項に記載の真空バルブ。   The vacuum valve according to any one of claims 1 to 3, wherein positioning means for determining a position of the guide is provided on the guide mounting portion and the movable side sealing metal fitting. 前記中央開口部と対向する前記可動側通電軸の軸方向に複数の溝部を設け、この溝部に前記ガイドの円弧部をそれぞれ挿入したことを特徴とする請求項１乃至請求項３のいずれか１項に記載の真空バルブ。   4. The structure according to claim 1, wherein a plurality of grooves are provided in an axial direction of the movable energizing shaft facing the central opening, and arc portions of the guides are respectively inserted into the grooves. The vacuum valve according to item.
JP2005147842A 2005-05-20 2005-05-20 Vacuum valve Active JP4653558B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005147842A JP4653558B2 (en) 2005-05-20 2005-05-20 Vacuum valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005147842A JP4653558B2 (en) 2005-05-20 2005-05-20 Vacuum valve

Publications (2)

Publication Number Publication Date
JP2006324177A true JP2006324177A (en) 2006-11-30
JP4653558B2 JP4653558B2 (en) 2011-03-16

Family

ID=37543694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005147842A Active JP4653558B2 (en) 2005-05-20 2005-05-20 Vacuum valve

Country Status (1)

Country Link
JP (1) JP4653558B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013470B1 (en) * 2007-07-30 2011-02-14 가부시키가이샤 히타치세이사쿠쇼 Vacuum insulated switch and vacuum insulated switch gear
WO2012169346A1 (en) * 2011-06-07 2012-12-13 株式会社日立製作所 Switch and switch gear
WO2019220655A1 (en) * 2018-05-17 2019-11-21 三菱電機株式会社 Vacuum valve
US10923303B2 (en) 2016-04-12 2021-02-16 Mitsubishi Electric Corporation Vacuum circuit breaker, gas insulated switchgear and air insulated switchgear mounted with the vacuum circuit breaker

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52168259U (en) * 1976-06-15 1977-12-20
JPS5344272U (en) * 1976-09-20 1978-04-15
JPS5327727Y2 (en) * 1973-06-21 1978-07-13
JPS5642923A (en) * 1979-09-17 1981-04-21 Tokyo Shibaura Electric Co Vacuum valve
JPS5784528A (en) * 1980-11-14 1982-05-26 Tokyo Shibaura Electric Co Vacuum valve
JPS57119437U (en) * 1981-01-17 1982-07-24
JPS6391133U (en) * 1986-12-04 1988-06-13
JPH03205722A (en) * 1990-01-08 1991-09-09 Hitachi Ltd Gas-blast circuit-breaker
JPH04115432A (en) * 1990-09-06 1992-04-16 Toshiba Corp Vacuum circuit-breaker
JPH10336789A (en) * 1997-06-02 1998-12-18 Matsushita Electric Ind Co Ltd Wire guide for vice coil winder
JP2002307566A (en) * 2001-04-17 2002-10-23 Asahi Eng Co Ltd Mandrel for filament winding
JP2004279131A (en) * 2003-03-13 2004-10-07 Ishikawajima Harima Heavy Ind Co Ltd Method for fixing junk of radioactive waste into disposal hole and cylindrical sleeve used for the same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327727Y2 (en) * 1973-06-21 1978-07-13
JPS52168259U (en) * 1976-06-15 1977-12-20
JPS5344272U (en) * 1976-09-20 1978-04-15
JPS5642923A (en) * 1979-09-17 1981-04-21 Tokyo Shibaura Electric Co Vacuum valve
JPS5784528A (en) * 1980-11-14 1982-05-26 Tokyo Shibaura Electric Co Vacuum valve
JPS57119437U (en) * 1981-01-17 1982-07-24
JPS6391133U (en) * 1986-12-04 1988-06-13
JPH03205722A (en) * 1990-01-08 1991-09-09 Hitachi Ltd Gas-blast circuit-breaker
JPH04115432A (en) * 1990-09-06 1992-04-16 Toshiba Corp Vacuum circuit-breaker
JPH10336789A (en) * 1997-06-02 1998-12-18 Matsushita Electric Ind Co Ltd Wire guide for vice coil winder
JP2002307566A (en) * 2001-04-17 2002-10-23 Asahi Eng Co Ltd Mandrel for filament winding
JP2004279131A (en) * 2003-03-13 2004-10-07 Ishikawajima Harima Heavy Ind Co Ltd Method for fixing junk of radioactive waste into disposal hole and cylindrical sleeve used for the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013470B1 (en) * 2007-07-30 2011-02-14 가부시키가이샤 히타치세이사쿠쇼 Vacuum insulated switch and vacuum insulated switch gear
WO2012169346A1 (en) * 2011-06-07 2012-12-13 株式会社日立製作所 Switch and switch gear
JP2012252968A (en) * 2011-06-07 2012-12-20 Hitachi Ltd Switch and switch gear
US10923303B2 (en) 2016-04-12 2021-02-16 Mitsubishi Electric Corporation Vacuum circuit breaker, gas insulated switchgear and air insulated switchgear mounted with the vacuum circuit breaker
WO2019220655A1 (en) * 2018-05-17 2019-11-21 三菱電機株式会社 Vacuum valve
TWI707103B (en) * 2018-05-17 2020-10-11 日商三菱電機股份有限公司 Vacuum valve

Also Published As

Publication number Publication date
JP4653558B2 (en) 2011-03-16

Similar Documents

Publication Publication Date Title
EP3284099B1 (en) Vacuum interrupter, retaining clip therefor and associated method
US7485815B2 (en) Mounting device for a capacitor
JP5627826B2 (en) Resin mold bushing and switch
JP2009525569A (en) Switching chamber for gas insulated high pressure switch
JP4653558B2 (en) Vacuum valve
US20170186574A1 (en) Pole part for high pressure environment application
JP5197065B2 (en) Vacuum valve
JP6130633B2 (en) Resin mold vacuum valve
JP5641944B2 (en) Vacuum valve
JP5801008B1 (en) Double sealed terminal header
JP5171298B2 (en) Resin mold vacuum valve
KR101502265B1 (en) Vacuum valve
KR100857418B1 (en) Insulating spacer of gas insulated switchgear
CN109936909B (en) Fixing structure of drift tube and interdigital drift tube accelerator
JP5556596B2 (en) Vacuum valve
JP2010282837A (en) Vacuum valve
JP2010135102A (en) Vacuum valve
TWI707103B (en) Vacuum valve
KR20130008541A (en) Gas-insulated, metal-clad, single-phase or polyphase switchgear unit
WO2022254775A1 (en) Vacuum valve
JP5460238B2 (en) Vacuum valve
JP6846878B2 (en) Vacuum valve
WO2017065026A1 (en) Vacuum valve
JP5525364B2 (en) Vacuum valve
JP2005317245A (en) Vacuum valve

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080418

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100723

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100730

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100922

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101126

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101217

R150 Certificate of patent or registration of utility model

Ref document number: 4653558

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131224

Year of fee payment: 3