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JP3583004B2 - Breaker device - Google Patents
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JP3583004B2 - Breaker device - Google Patents

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Publication number
JP3583004B2
JP3583004B2 JP03584699A JP3584699A JP3583004B2 JP 3583004 B2 JP3583004 B2 JP 3583004B2 JP 03584699 A JP03584699 A JP 03584699A JP 3584699 A JP3584699 A JP 3584699A JP 3583004 B2 JP3583004 B2 JP 3583004B2
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JP
Japan
Prior art keywords
handle
curved spring
breaker device
insulating base
inward surface
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.)
Expired - Fee Related
Application number
JP03584699A
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Japanese (ja)
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JP2000235824A (en
Inventor
一元 近田
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.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Publication date
Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP03584699A priority Critical patent/JP3583004B2/en
Publication of JP2000235824A publication Critical patent/JP2000235824A/en
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Publication of JP3583004B2 publication Critical patent/JP3583004B2/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10Adaptation for built-in fuses
    • H01H2009/108Building a sliding and/or a removable bridging connector for batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08Arrangements to facilitate replacement of a switch, e.g. cartridge housing
    • H01H9/085Arrangements to facilitate replacement of a switch, e.g. cartridge housing contact separation effected by removing contact carrying element

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  • Breakers (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、動力電線等に介設して用いられるブレーカ装置に関する。
【0002】
【従来の技術】
ブレーカ装置は、その一例が図1及び図2に示されており、本体ケース10に備えた一対の固定電極11,11に、可動電極12を挿抜して、両固定電極11,11間を切断または接続するものである。また、可動電極12の上部に備えた絶縁基部13には、挿抜操作を行うためのハンドル14が傾倒可能に設けられ、このハンドル14が、絶縁基部13に固定した次述の湾曲バネによって図2に示すように起立位置と傾倒位置とに保持される。
【0003】
図10〜図13には、例えば特開平9−223439号公報に掲載された従来のブレーカ装置における湾曲バネ1の構造が拡大して示されている。この湾曲バネ1は、金属板を環状に湾曲させ、それら両端の突き合わせ部分2が上側に向けられるようにして、絶縁基部13に取り付けられている。そして、ハンドル14のうち傾動中心から離れた位置に形成した内向面14Aに前記湾曲バネ1が押し当てられて、ハンドル14が起立位置と傾倒位置とに保持される。
【0004】
【発明が解決しようとする課題】
ところで、ハンドル14が傾動されるとき、湾曲バネ1はハンドル14の内向面14Aに引きずられるように力を受ける。そして、従来のブレーカ装置では、湾曲バネ1は、上側で不連続となっているから、この不連続部分を境とした左右の一方側でしか力を受けることができず、図13に示すように湾曲バネ1が大きく開脚して塑性変形していまうという問題があった。
【0005】
本発明は、上記事情に鑑みてなされたもので、湾曲バネの塑性変形を防ぐことが可能なブレーカ装置の提供を目的とする。
【0006】
【課題を解決するための手段】
上記目的を達成するため、請求項1の発明に係るブレーカ装置は、並行して直立した一対の固定電極と、固定電極に挿抜されて両固定電極間を接続または切断する可動電極と、可動電極に一体に設けた絶縁基部と、絶縁基部に傾動可能に設けたハンドルと、ハンドルに傾動中心から離れてその傾動中心側を向いて形成された内向面と、絶縁基部のうち内向面との対向位置に固定されて、ハンドルを起立状態と傾倒状態とに保持するように内向面に押し当てられる湾曲バネとを備えたブレーカ装置において、湾曲バネのうち内向面に押し当てられる部分には、ハンドルの傾動中心を跨いで絶縁基部の一方の側部から他方の側部に連続して延びるアーチ部が備えられているところに特徴を有する。
【0007】
請求項2の発明は、請求項1記載のものにおいて、湾曲バネは、環状に湾曲した金属板の端部同士を連結して構成されているところに特徴を有する。
【0008】
請求項3の発明は、請求項1又は請求項2記載のものにおいて、内向面には、アーチ部に向けて突起が突出され、アーチ部には、ハンドルの起立状態で突起の両側に対峙する一対の凸湾部と、両凸湾部の互いに離れ側を窪ませた凹湾部とが備えられているところに特徴を有する。
【0009】
【発明の作用及び効果】
<請求項1の発明>
ハンドルを傾動すると、湾曲バネに設けたアーチ部のうち左右のいずれか一方がハンドルの内向面に引きずられるように力を受ける。ところが、アーチ部は、絶縁基部の一方の側部から他方の側部に連続しているから、力を受けた部分が両側から支持されて大きく変形することがなくなり、もって湾曲バネの塑性変形が防がれる。
【0010】
<請求項2の発明>
湾曲バネを構成する金属板が、閉じた環状をなしているから、湾曲バネにどの方向から力がかかっても、金属板の一部分のみが大きく変形されることがなくなり、湾曲バネの塑性変形がより確実に防がれる。
【0011】
<請求項3の発明>
ハンドルを起立状態にすると、ハンドルの内向面に突出させた突起が、アーチ部に設けた両凸湾部の間に収まる。この起立状態から、ハンドルを傾倒させていくと、突起が凸湾部と干渉して、ハンドルを起立状態に戻そうとする大きな抵抗力がかかる。そして、突起が凸湾部を乗り越えた途端、そこに形成された凹湾部内に突起が逃げ込み、前記した抵抗力が突如として開放される。これにより、ハンドルを倒したときの節度感を得ることができる。
【0012】
【発明の実施の形態】
本発明の一実施形態にかかるブレーカ装置は、図1〜図8に示されており、湾曲バネ30の構造を除く基本構造は従来の技術で説明したブレーカ装置と共通している。以下、この基本構造について補足しつつ、本実施形態のブレーカ装置の構成について説明する。
【0013】
本実施形態のブレーカ装置は、電気自動車の動力電線Dの途中に設けられている。ブレーカ装置に備えた一対の固定電極11,11は、本体ケース10内の縦幅方向の一側において立設され、その本体ケース10の他側にはヒューズ20が収容されている。固定電極11はピン状に形成され、下端側には雄ねじ(図示せず)が切られている。そして、本体ケース10の底面にインサート成形によって埋設した一対の雌ねじ体(図示せず)に、各固定電極11,11の雄ねじをねじ込むことで、両固定電極11,11が並行して直立した状態に固定されている。また、図1における左側の一方の固定電極11には、電線Dの一方の分断部分に接続された端子金具D1が共締めされ、さらに、他方の固定電極11には、電線Dの他方の分断部分が前記ヒューズ20を介して接続されている。
【0014】
本体ケース10の天井壁のうち各固定電極11,11の直上位置には、一対の挿入孔21,21が形成されている。そして、可動電極12に設けた次述する各ルーバ端子12A,12Aが挿入孔21,21を通して本体ケース10内の一対の固定電極11,11に抜き差しされ、これにより両固定電極11,11の間が切断または接続される。
【0015】
一方、可動電極12は、各固定電極11の先端がそれぞれに嵌合可能な一対のルーバ端子12A,12Aの間に、架橋部12Cを差し渡して接続した構造をなし、合成樹脂製の細長い絶縁基部13に対して、インサート成形により一体に設けられている。絶縁基部13の上面には、外形が逆台形をなす枠状に形成されたハンドル14が設けられており、絶縁基部13の上面の長さ方向の両端部とハンドル14の底辺の両端とに設けた軸受部22A,22BがピンPに貫通され、このピンPを軸としてハンドル14が傾動する。
【0016】
絶縁基部13の長さ方向の中心の上面には、図3に示すように、隆起部23が形成され、その隆起部23の頂面に、絶縁基部13の長さ方向と直角方向に細長い平面長方形の角柱形をなす取付突起24が立設されている。また、取付突起24の上端には、鈎部25が突設されている。
【0017】
一方、ハンドル14のうち上記隆起部23との対向部分には、図6に示すように、湾曲バネ30を収容可能とする収容凹部26が穿設されており、その収容凹部26の奥面が、次述の湾曲バネ30に当接する内向面14Aとなっている。また、本実施形態の内向面14Aには、従来のものと異なり、突起27がハンドル14の傾動中心に向かって突出している。
【0018】
さて、隆起部23には、本実施形態に特有の湾曲バネ30が取り付けられている。湾曲バネ30は、例えば、ばね鋼板からなる金属板を図4の展開図に示すように打ち抜きかつそれを曲げ加工して形成されている。そして、図3に示すように、前記隆起部23の上面に配される平板状の基部31と、その基部31の両側縁部から立ち上がって基部31の上方に差し渡されたアーチ部32とを備える。また、基部31には、前記取付突起24が挿入される矩形孔33と、その矩形孔33の縁部から斜め上方に立ち上がって前記鈎部25に係止する係止片34とが設けられている。さらに、アーチ部32の頂上部分には、金属板を蛇行状に湾曲させることによって形成された一対の凸湾部35,35が上方に向かって突出しており、アーチ部32にうち両凸湾部35,35の互いに離れた側には、金属板を内側に僅かに窪ませてなる凹湾部36,36が備えられている。
【0019】
より詳細には、湾曲バネ30を構成する金属板は、図4の上下方向に延びる帯状領域40の上下端に、同図の左右方向に長細くなった一対の長方形領域41,41を備えた構造に打ち抜かれ、全体が上下左右に対称形状をなしている。そして、上記帯状領域40を湾曲させて湾曲バネ30のアーチ部32が形成される一方、前記両長方形領域41,41同士を突き合わせ、かつ、それらの間に平板状の連結部材37(図3参照)を差し渡してスポット溶接することにより、湾曲バネ30の基部31が形成される。また、各長方形領域41には、帯状領域40から離れた縁部の一部をスリット42によって切離して、前記係止片34が形成されている。
【0020】
なお、図4には、金属板における谷折り線が鎖線で示されると共に、山折り線が一点鎖線で示され、また、図5には、金属板が折り曲げられた途中の状態が示されている。
【0021】
本実施形態は上記のような構造であって、続いてその作用を説明する。
ブレーカ装置は、通常、電気自動車のエンジンルームの中で、可動電極12が固定電極11に差し込まれ、かつ、ハンドル14が傾倒された状態となっている。ハンドル14が傾倒状態となっているときは、図8に示すように、湾曲バネ30に設けたアーチ部32の基端側にハンドル14に設けた内向面14Aが押し当てられ、その反力でもってハンドル14が傾動不能に保持される。ここで、前記内向面14Aには、突起27が設けられているから、この突起27が湾曲バネ30に食い込んで保持力が高まる。
【0022】
例えば電気自動車のメインテナンス時には、動力電線Dを非導通状態にして安全を確保するために、ブレーカ装置の可動電極12が固定電極11から引き抜かれる。このとき、ハンドル14を傾倒状態から起立状態へと傾動させる。ここで、ハンドル14を立てていくと、大きな抵抗力を覚えつつ、突起27が湾曲バネ30に押し当てられつつ徐々に上方に移行される。そして、ハンドル14が斜めになったところで、突起27が湾曲バネ30に形成した凹湾部36内に逃げ込み、前記した抵抗力が突如として開放される。これにより、節度感をもってハンドル14が傾倒状態でなくなったことを確認できる。
【0023】
さらに、ハンドル14を立てていくと、突起27が図7の右側の凸湾部35に当接して、再び大きな抵抗力を覚える。そして、突起27が、凸湾部35の頂点を乗り越えると、突起27と凸湾部35との互いの中腹部分同士が摺接し、両凸湾部35,35の中央に突起27が位置するように案内されて、ハンドル14が起立状態になる(図6参照)。起立状態となったハンドル14は、内向面14Aに押しつけられた湾曲バネ30の弾発力と、前記突起27と凸湾部35との係止力とでもって傾動不能に保持される。そして、ハンドル14を引っ張って可動電極12を固定電極11から引き抜くと、動力電線Dが非導通状態となる。
【0024】
メインテナンスが終了したら起立状態のハンドル14を把持して、可動電極12を固定電極11,11に差し込む。このとき、ハンドル14は、上記したように湾曲バネ30の弾発力と、前記突起27と凸湾部35との係止力とでもって傾動不能に保持されてぐらつかないから、固定電極11の差し込み操作を容易に行える。
【0025】
可動電極12を差し込んだら、ハンドル14を起立状態から傾倒状態にする。そのために、例えばハンドル14を図6の右側に倒していくと、突起27が凸湾部35と干渉して、ハンドル14を起立状態に戻そうとする大きな抵抗力がかかる。その抵抗力に対向して、ハンドル14を倒していくと、湾曲バネ30のアーチ部32のうち図6における右側部分が、内向面14Aに引きずられるように力を受ける。ところが、アーチ部32は、絶縁基部13の一方の側部から他方の側部に連続してるから、力を受けた部分が両側から支持され、大きく変形することはない。そして、ハンドル14が斜めに倒れて、突起27が凸湾部35を乗り越えた途端、その突起27が凹湾部36内に逃げ込み、前記した抵抗力が突如として開放される。これにより、ハンドル14を倒したときの節度感を得ることができる。
【0026】
ハンドル14をさらに押し倒すと、突起27が湾曲バネ30の基端部に食い込むようにして、湾曲バネ30が撓められ、その弾発力でもって、ハンドル14が傾倒状態に保持される。
【0027】
このように本実施形態のブレーカ装置によれば、湾曲バネ30に設けたアーチ部32は、絶縁基部13の一方の側部から他方の側部に連続してるから、力を受けた部分が両側から支持され、大きく変形することがなくなり、もって湾曲バネ30の塑性変形が防がれる。しかも、湾曲バネ30を構成する金属板は、連結部材37によって接合されて、閉じた環状をなしているから、湾曲バネ30にどの方向から力がかかっても、金属板の一部分のみが大きく変形されることがなく、湾曲バネ30の塑性変形がより確実に防がれる。
【0028】
<他の実施形態>
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。
【0029】
(1)前記実施形態の湾曲バネ30は、連結部材37にて金属板の端部同士を連結することにより、全体として閉じた環状をなしていたが、湾曲バネは、少なくともアーチ部が連続してれば、アーチ部以外の部分に不連続部があってもよい。例えば、前記実施形態における湾曲バネ30の基部31に、連結部材37を備えない構成としてたものも本発明の技術的範囲に含まれる。
【0030】
(2)また、図9に示すように、前記実施形態における湾曲バネ30の基部31に連結部材37を備えない構成としてたものにおいて、基部31のうち不連続部分を挟んだ両側に係止孔50,50を貫通形成し、この係止孔50,50に対応させて、絶縁基部13に係止突部51,51を設けた構成としてもよい。このような構成とすれば、係止突部51と係止孔50との係合によって、湾曲バネ30の不連続部分の開脚が規制される。
【0031】
(3)前記実施形態では、湾曲バネ30と内向面14Aとの押しつけによって、ハンドル14を起立状態または傾倒状態に保持していたが、湾曲バネと内向面とによってトグル機構を構成し、そのトグル作用によりハンドルを起立状態と傾倒状態とに保持してもよい。
【図面の簡単な説明】
【図1】本発明の一実施形態のブレーカ装置の構造を示す斜視図
【図2】そのブレーカ装置の側面図
【図3】湾曲バネの取付部分を示す斜視図
【図4】湾曲バネの展開図
【図5】湾曲バネを折り曲げた途中の段階を示す斜視図
【図6】ハンドルの起立状態を示す拡大側断面図
【図7】ハンドルが傾倒した途中の状態を示す拡大側断面図
【図8】ハンドルの傾倒状態を示す拡大側断面図
【図9】湾曲バネの変形例を示す斜視図
【図10】従来のブレーカ装置のハンドルの起立状態を示す拡大断面図
【図11】従来のブレーカ装置のハンドルの傾倒状態を示す拡大断面図
【図12】従来のブレーカ装置における湾曲バネの取付部分を示す斜視図
【図13】従来のブレーカ装置のハンドルが傾倒した途中の状態を示す拡大側断面図
【符号の説明】
11…固定電極
12…可動電極
13…絶縁基部
14…ハンドル
14A…内向面
27…突起
30…湾曲バネ
32…アーチ部
35…凸湾部
36…凹湾部
37…連結部材
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a breaker device used by being interposed in a power line or the like.
[0002]
[Prior art]
An example of the breaker device is shown in FIGS. 1 and 2. A movable electrode 12 is inserted into and removed from a pair of fixed electrodes 11 provided on a main body case 10, and the space between the fixed electrodes 11 is cut. Or to connect. Further, a handle 14 for performing an insertion / extraction operation is provided on the insulating base 13 provided on the upper part of the movable electrode 12 in a tiltable manner. The handle 14 is fixed to the insulating base 13 by a curved spring described below. As shown in (2), it is held in the upright position and the inclined position.
[0003]
FIGS. 10 to 13 show, on an enlarged scale, the structure of a curved spring 1 in a conventional breaker device disclosed in, for example, Japanese Patent Application Laid-Open No. 9-223439. The bending spring 1 is attached to the insulating base 13 such that the metal plate is bent in a ring shape and the butted portions 2 at both ends thereof are directed upward. Then, the curved spring 1 is pressed against an inward surface 14A formed at a position away from the tilt center of the handle 14, and the handle 14 is held at the upright position and the tilt position.
[0004]
[Problems to be solved by the invention]
When the handle 14 is tilted, the bending spring 1 receives a force to be dragged by the inward surface 14A of the handle 14. In the conventional breaker device, since the curved spring 1 is discontinuous on the upper side, it can receive a force only on one of the left and right sides of the discontinuous portion, as shown in FIG. In addition, there is a problem that the curved spring 1 is greatly opened and plastically deforms.
[0005]
The present invention has been made in view of the above circumstances, and has as its object to provide a breaker device capable of preventing plastic deformation of a curved spring.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a breaker device according to the first aspect of the present invention includes a pair of fixed electrodes that stand upright in parallel, a movable electrode that is inserted into and removed from the fixed electrode to connect or disconnect the two fixed electrodes, An insulated base provided integrally with the handle, a handle provided to be tiltable on the insulating base, an inward surface formed on the handle away from the center of tilt and facing the center of tilt, and an inward surface of the insulating base facing the inward surface. A breaker device fixed to a position and having a curved spring pressed against an inward surface so as to hold the handle in an upright state and an inclined state, wherein a portion of the curved spring pressed against the inward surface has a handle. The present invention is characterized in that an arch portion extending from one side portion of the insulating base portion to the other side portion of the insulating base portion is provided so as to straddle the center of tilting.
[0007]
A second aspect of the present invention is characterized in that, in the first aspect, the curved spring is formed by connecting ends of metal plates which are curved in a ring shape.
[0008]
According to a third aspect of the present invention, in the first or second aspect, a projection is projected from the inward surface toward the arch portion, and the arch portion faces both sides of the projection in a standing state of the handle. The present invention is characterized in that a pair of convex bay portions and a concave bay portion in which both sides of the biconvex bay portion are recessed from each other are provided.
[0009]
Function and effect of the present invention
<Invention of claim 1>
When the handle is tilted, a force is applied so that one of the left and right arch portions provided on the curved spring is dragged by the inward surface of the handle. However, since the arch portion is continuous from one side to the other side of the insulating base, the portion receiving the force is supported from both sides and does not greatly deform, so that the plastic deformation of the curved spring is reduced. Can be prevented.
[0010]
<Invention of Claim 2>
Since the metal plate that constitutes the curved spring has a closed ring shape, even if force is applied to the curved spring from any direction, only a part of the metal plate will not be greatly deformed, and plastic deformation of the curved spring will not occur. More reliably prevented.
[0011]
<Invention of Claim 3>
When the handle is in the upright state, the protrusion protruding from the inward surface of the handle fits between the biconvex bays provided in the arch. When the handle is tilted from the upright state, the projection interferes with the convex ridge portion, and a large resistance force is applied to return the handle to the upright state. As soon as the projection has passed over the convex bay portion, the projection escapes into the concave bay portion formed therein, and the above-described resistance force is suddenly released. As a result, a sense of moderation when the steering wheel is tilted can be obtained.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
A breaker device according to an embodiment of the present invention is shown in FIGS. 1 to 8, and the basic structure other than the structure of the curved spring 30 is common to the breaker device described in the related art. Hereinafter, the configuration of the breaker device of the present embodiment will be described while supplementing the basic structure.
[0013]
The breaker device of the present embodiment is provided in the middle of a power line D of an electric vehicle. The pair of fixed electrodes 11 provided in the breaker device are erected on one side in the longitudinal direction in the main body case 10, and the fuse 20 is accommodated on the other side of the main body case 10. The fixed electrode 11 is formed in a pin shape, and is provided with a male screw (not shown) at the lower end. Then, the male screw of each of the fixed electrodes 11, 11 is screwed into a pair of female screw bodies (not shown) embedded in the bottom surface of the main body case 10 by insert molding, so that both fixed electrodes 11, 11 stand upright in parallel. Fixed to. In addition, a terminal fitting D1 connected to one of the divided portions of the electric wire D is fastened to the one fixed electrode 11 on the left side in FIG. 1, and the other fixed electrode 11 is further divided to the other fixed electrode 11. The parts are connected via the fuse 20.
[0014]
A pair of insertion holes 21 and 21 are formed in the ceiling wall of the main body case 10 immediately above the fixed electrodes 11 and 11. The louver terminals 12A, 12A described below provided on the movable electrode 12 are inserted into and removed from the pair of fixed electrodes 11, 11 in the main body case 10 through the insertion holes 21, 21. Is disconnected or connected.
[0015]
On the other hand, the movable electrode 12 has a structure in which a bridge portion 12C is inserted and connected between a pair of louver terminals 12A, 12A to which the tips of the fixed electrodes 11 can be fitted, respectively. 13 is provided integrally by insert molding. On the upper surface of the insulating base 13, a handle 14 formed in a frame shape having an inverted trapezoidal shape is provided, and provided at both ends in the longitudinal direction of the upper surface of the insulating base 13 and at both ends of the bottom side of the handle 14. The bearings 22A and 22B penetrate through the pin P, and the handle 14 tilts around the pin P.
[0016]
As shown in FIG. 3, a raised portion 23 is formed on the upper surface of the center of the insulating base 13 in the longitudinal direction, and a flat surface elongated in the direction perpendicular to the length direction of the insulating base 13 is formed on the top surface of the raised portion 23. A mounting prism 24 having a rectangular prism shape is provided upright. At the upper end of the mounting projection 24, a hook 25 is protruded.
[0017]
On the other hand, as shown in FIG. 6, an accommodation recess 26 capable of accommodating the curved spring 30 is formed in a portion of the handle 14 facing the protruding portion 23. , An inward surface 14A that comes into contact with the curved spring 30 described below. Further, a projection 27 protrudes toward the tilting center of the handle 14 on the inward surface 14A of the present embodiment, unlike the conventional one.
[0018]
Now, a curved spring 30 unique to the present embodiment is attached to the raised portion 23. The curved spring 30 is formed, for example, by punching a metal plate made of a spring steel plate as shown in a developed view of FIG. 4 and bending it. Then, as shown in FIG. 3, a flat base 31 arranged on the upper surface of the raised portion 23 and an arch 32 rising from both side edges of the base 31 and extending over the base 31. Prepare. The base 31 has a rectangular hole 33 into which the mounting projection 24 is inserted, and a locking piece 34 that rises obliquely upward from the edge of the rectangular hole 33 and locks the hook 25. I have. Further, at the top of the arch 32, a pair of convex ridges 35, 35 formed by bending a metal plate in a meandering shape protrudes upward. Recessed portions 36, 36 formed by slightly recessing a metal plate inward are provided on the sides of the metal plates 35, 35 remote from each other.
[0019]
More specifically, the metal plate constituting the curved spring 30 includes a pair of rectangular regions 41, 41 elongated in the left-right direction of FIG. It is stamped into a structure, and the whole is symmetrical in all directions. Then, the belt-shaped region 40 is curved to form the arch portion 32 of the curved spring 30, while the rectangular regions 41, 41 abut each other, and a flat plate-shaped connecting member 37 (see FIG. 3) therebetween. ) Is spot-welded to form the base 31 of the curved spring 30. In each of the rectangular regions 41, a part of an edge separated from the band-shaped region 40 is cut off by a slit 42 to form the locking piece 34.
[0020]
FIG. 4 shows a valley fold line in the metal plate by a chain line, a mountain fold line by a dashed line, and FIG. 5 shows a state in which the metal plate is being bent. I have.
[0021]
This embodiment has the above-described structure, and its operation will be described below.
The breaker device usually has a state in which the movable electrode 12 is inserted into the fixed electrode 11 and the handle 14 is tilted in the engine room of the electric vehicle. When the handle 14 is in a tilted state, as shown in FIG. 8, an inward surface 14 </ b> A provided on the handle 14 is pressed against the base end side of the arch portion 32 provided on the curved spring 30, and the reaction force is applied. Thus, the handle 14 is held so as not to tilt. Here, since the protrusion 27 is provided on the inward surface 14A, the protrusion 27 bites into the curved spring 30 to increase the holding force.
[0022]
For example, at the time of maintenance of an electric vehicle, the movable electrode 12 of the breaker device is pulled out from the fixed electrode 11 in order to keep the power line D in a non-conductive state and ensure safety. At this time, the handle 14 is tilted from the tilted state to the upright state. Here, when the handle 14 is raised, the projection 27 is gradually moved upward while being pressed against the curved spring 30 while remembering a large resistance. Then, when the handle 14 is inclined, the protrusion 27 escapes into the concave bay portion 36 formed in the curved spring 30, and the above-described resistance force is suddenly released. Thereby, it can be confirmed that the steering wheel 14 is no longer in a tilted state with a sense of moderation.
[0023]
Further, when the handle 14 is raised, the protrusion 27 comes into contact with the convex ridge 35 on the right side in FIG. Then, when the projection 27 gets over the top of the convex bay portion 35, the middle portions of the projection 27 and the convex bay portion 35 are in sliding contact with each other, and the projection 27 is located at the center of the both convex bay portions 35, 35. , The handle 14 is brought upright (see FIG. 6). The handle 14 in the upright state is non-tiltably held by the elastic force of the curved spring 30 pressed against the inward surface 14A and the locking force between the projection 27 and the convex bay portion 35. Then, when the movable electrode 12 is pulled out of the fixed electrode 11 by pulling the handle 14, the power wire D is brought into a non-conductive state.
[0024]
When maintenance is completed, the handle 14 in the upright state is grasped, and the movable electrode 12 is inserted into the fixed electrodes 11, 11. At this time, the handle 14 is held in such a manner as not to be tilted by the elastic force of the curved spring 30 and the locking force between the projection 27 and the convex portion 35 as described above, and does not move. The insertion operation can be easily performed.
[0025]
After the movable electrode 12 is inserted, the handle 14 is changed from the upright state to the inclined state. Therefore, for example, when the handle 14 is tilted rightward in FIG. 6, the protrusion 27 interferes with the convex ridge portion 35, and a large resistance force is applied to return the handle 14 to the upright state. When the handle 14 is tilted in opposition to the resistance, the right portion of the arch portion 32 of the curved spring 30 in FIG. 6 receives a force so as to be dragged by the inward surface 14A. However, since the arch portion 32 is continuous from one side of the insulating base 13 to the other side, the portion subjected to the force is supported from both sides and does not significantly deform. Then, as soon as the handle 14 is tilted obliquely and the projection 27 gets over the convex bay 35, the projection 27 escapes into the concave bay 36, and the above-mentioned resistance is suddenly released. Thus, a sense of moderation when the handle 14 is tilted can be obtained.
[0026]
When the handle 14 is further pushed down, the curved spring 30 is bent so that the projection 27 bites into the base end of the curved spring 30, and the handle 14 is held in an inclined state by the elastic force.
[0027]
As described above, according to the breaker device of the present embodiment, since the arch portion 32 provided on the curved spring 30 is continuous from one side portion to the other side portion of the insulating base portion 13, the portions receiving the force are on both sides. , And is not greatly deformed, so that the plastic deformation of the curved spring 30 is prevented. In addition, since the metal plate forming the curved spring 30 is joined by the connecting member 37 to form a closed ring, only a part of the metal plate is greatly deformed even if a force is applied to the curved spring 30 from any direction. Therefore, the plastic deformation of the curved spring 30 is more reliably prevented.
[0028]
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and are not limited to the following without departing from the gist. Can be implemented with various modifications.
[0029]
(1) The curved spring 30 of the embodiment has a closed ring shape as a whole by connecting the ends of the metal plates with the connecting member 37. However, the curved spring has at least an arch portion that is continuous. If there is, there may be a discontinuous portion in a portion other than the arch portion. For example, a configuration in which the base 31 of the curved spring 30 in the above embodiment is not provided with the connecting member 37 is also included in the technical scope of the present invention.
[0030]
(2) Further, as shown in FIG. 9, in a configuration in which the connecting member 37 is not provided on the base 31 of the curved spring 30 in the above embodiment, locking holes are provided on both sides of the base 31 across the discontinuous portion. The through holes 50, 50 may be formed, and the insulating base 13 may be provided with locking projections 51, 51 corresponding to the locking holes 50, 50. With such a configuration, the engagement between the locking protrusion 51 and the locking hole 50 restricts the opening of the discontinuous portion of the curved spring 30.
[0031]
(3) In the above embodiment, the handle 14 is held in the upright state or the inclined state by pressing the curved spring 30 and the inward surface 14A. However, the toggle mechanism is constituted by the curved spring and the inward surface, and the toggle mechanism is configured. By operation, the handle may be held in the upright state and the tilted state.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a structure of a breaker device according to an embodiment of the present invention. FIG. 2 is a side view of the breaker device. FIG. 3 is a perspective view showing a mounting portion of a curved spring. FIG. FIG. 5 is a perspective view showing a stage in the course of bending the bending spring. FIG. 6 is an enlarged sectional side view showing a standing state of the handle. FIG. 7 is an enlarged sectional side view showing a state where the handle is tilted. 8 is an enlarged side sectional view showing a tilted state of a handle. FIG. 9 is a perspective view showing a modification of a curved spring. FIG. 10 is an enlarged sectional view showing an upright state of a handle of a conventional breaker device. FIG. 12 is an enlarged cross-sectional view showing a tilted state of a handle of the device. FIG. 12 is a perspective view showing a mounting portion of a curved spring in a conventional breaker device. FIG. Figure [Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Fixed electrode 12 ... Movable electrode 13 ... Insulating base 14 ... Handle 14A ... Inward surface 27 ... Projection 30 ... Curved spring 32 ... Arch 35 ... Convex bay 36 ... Concave bay 37 ... Connecting member

Claims (3)

並行して直立した一対の固定電極と、前記固定電極に挿抜されて両固定電極間を接続または切断する可動電極と、前記可動電極に一体に設けた絶縁基部と、前記絶縁基部に傾動可能に設けたハンドルと、前記ハンドルに傾動中心から離れてその傾動中心側を向いて形成された内向面と、前記絶縁基部のうち前記内向面との対向位置に固定されて、前記ハンドルを起立状態と傾倒状態とに保持するように前記内向面に押し当てられる湾曲バネとを備えたブレーカ装置において、
前記湾曲バネのうち前記内向面に押し当てられる部分には、前記ハンドルの傾動中心を跨いで前記絶縁基部の一方の側部から他方の側部に連続して延びるアーチ部が備えられていることを特徴とするブレーカ装置。
A pair of fixed electrodes that stand upright in parallel, a movable electrode that is inserted into and removed from the fixed electrode to connect or disconnect between the two fixed electrodes, an insulating base integrally provided with the movable electrode, and a tiltable to the insulating base. A handle provided, an inward face formed on the handle away from the center of tilt and facing the tilt center side, and the insulating base is fixed to a position facing the inward face, and the handle is in an upright state. A breaker device having a curved spring pressed against the inward surface so as to hold the tilted state,
A portion of the curved spring pressed against the inward surface is provided with an arch portion that continuously extends from one side of the insulating base to the other side across the tilt center of the handle. Breaker device characterized by the above-mentioned.
前記湾曲バネは、環状に湾曲した金属板の端部同士を連結して構成されていることを特徴とする請求項1記載のブレーカ装置。The breaker device according to claim 1, wherein the curved spring is configured by connecting ends of a metal plate curved in a ring shape. 前記内向面には、前記アーチ部に向けて突起が突出され、前記アーチ部には、前記ハンドルの起立状態で前記突起の両側に対峙する一対の凸湾部と、前記両凸湾部の互いに離れ側を窪ませた凹湾部とが備えられていることを特徴とする請求項1又は請求項2記載のブレーカ装置。On the inward surface, a protrusion is projected toward the arch portion, and the arch portion has a pair of convex bay portions facing both sides of the projection in an upright state of the handle, and a pair of convex bay portions that are opposite to each other. The breaker device according to claim 1, further comprising a concave bay portion having a recessed side.
JP03584699A 1999-02-15 1999-02-15 Breaker device Expired - Fee Related JP3583004B2 (en)

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JP3798938B2 (en) 2000-12-01 2006-07-19 株式会社オートネットワーク技術研究所 Breaker device
JP2002279861A (en) * 2001-03-19 2002-09-27 Auto Network Gijutsu Kenkyusho:Kk Breaker device
US7584298B2 (en) 2002-12-13 2009-09-01 Internap Network Services Corporation Topology aware route control
FR3054434B1 (en) * 2016-07-28 2021-09-10 Safran Electronics & Defense EXOSKELETON STRUCTURE FOR USER STRAIN ASSISTANCE

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