JPH0310590Y2 - - Google Patents
Info
- Publication number
- JPH0310590Y2 JPH0310590Y2 JP1984162697U JP16269784U JPH0310590Y2 JP H0310590 Y2 JPH0310590 Y2 JP H0310590Y2 JP 1984162697 U JP1984162697 U JP 1984162697U JP 16269784 U JP16269784 U JP 16269784U JP H0310590 Y2 JPH0310590 Y2 JP H0310590Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit breaker
- lever
- operating
- handle
- case
- 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
Links
- 230000033001 locomotion Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Description
本考案はケース付低圧遮断器に関する。更に詳
しくは、低圧遮断器をケースに収容して屋外の柱
上やフレームに取りつけ、外部操作ハンドルによ
つて遮断器を操作可能にしたものに関する。
The present invention relates to a low voltage circuit breaker with a case. More specifically, the present invention relates to a case in which a low voltage circuit breaker is housed in a case and mounted on an outdoor pole or frame, and the circuit breaker is operable by an external operation handle.
低圧遮断器は一般的には屋内用として使用され
ている。屋外で使用される場合もあるが、その場
合は雨水や衝撃から遮断器を保護する為にケース
内に収容して使用し、遮断器操作レバーの作動は
ケースカバーや扉を開けて行なつていた。
ところで、前記したようなケースに収容した遮
断器を柱上や高所のフレームに取りつけて使用す
る場合がある。このような場合はカバーや扉を開
けて遮断器操作レバーを操作することは実際的で
はない。従つて外部から遠隔操作ができるように
ケースの外部に操作ハンドルを設け、この操作ハ
ンドルに引き紐等を取付けて内部に収容した遮断
器操作レバーを操作する必要が生じる。
実開昭56−170857号公報には、ケースを貫設し
ている操作ハンドルを左右に回転させることによ
つてケース内に収容した遮断器操作レバーを操作
する機構が開示してある。この機構はスライダー
板に設けてある穴部に遮断器の操作レバーを嵌合
し、前記スライダー板を直線運動することによつ
て遮断器操作レバーを操作するようにしたもので
ある。スライダー板は直線運動を行なうが遮断器
操作レバーは円弧運動を行なう為に、前記スライ
ダー板に設けてある穴部は操作レバーよりも大き
く形成して遊び部分を設けないと操作レバーは動
かない。ところが穴部と遮断器操作レバー間の遊
び部分が大きいと遊び部分の範囲で操作ハンドル
が自由に動くことになり、操作ハンドルの位置を
目印にして遮断器の入・切・トリツプの状態を判
断する場合、不明確となる課題がある。
また、引き紐を引く場合には体重を掛けて引く
ことも多く、この場合には遮断器操作レバーに過
度の力がかかる。しかし、前記公報に開示してあ
る操作機構の場合はそのような場合の対策が施さ
れておらず、遮断器操作レバーに過度の力がかか
ることによつて遮断器を破損する恐れがある。
Low voltage circuit breakers are generally used indoors. The circuit breaker may be used outdoors, but in that case the circuit breaker must be housed in a case to protect it from rainwater and shock, and the circuit breaker operating lever must be operated by opening the case cover or door. Ta. By the way, there are cases where a circuit breaker housed in a case as described above is used by being attached to a column or a frame at a high place. In such a case, it is not practical to open the cover or door and operate the circuit breaker operating lever. Therefore, it is necessary to provide an operating handle on the outside of the case so that remote control can be performed from the outside, and to attach a drawstring or the like to this operating handle to operate the circuit breaker operating lever housed inside. Japanese Utility Model Publication No. 56-170857 discloses a mechanism for operating a circuit breaker operating lever housed within a case by rotating an operating handle extending through the case from side to side. In this mechanism, a circuit breaker operating lever is fitted into a hole provided in a slider plate, and the circuit breaker operating lever is operated by linearly moving the slider plate. Since the slider plate makes a linear motion, but the circuit breaker operating lever makes an arcuate motion, the operating lever will not move unless the hole provided in the slider plate is made larger than the operating lever to provide a play area. However, if the play between the hole and the circuit breaker operating lever is large, the operating handle will move freely within the play area, and the position of the operating handle will be used as a guide to determine whether the circuit breaker is on, off, or tripped. When doing so, there are issues that become unclear. Furthermore, when pulling the drawstring, the user often puts his/her body weight on the puller, and in this case, excessive force is applied to the circuit breaker operating lever. However, in the case of the operating mechanism disclosed in the above-mentioned publication, no countermeasures are taken against such a case, and there is a risk of damaging the circuit breaker due to excessive force being applied to the circuit breaker operating lever.
そこで本考案の目的は、外部操作ハンドルの位
置によつて遮断器の入・切・トリツプの状態が外
部から明確に判断できるようにしたケース付き低
圧遮断器を提供することにある。
本考案の他の目的は外部操作ハンドルを引き紐
等で操作する場合に強い力で操作しても遮断器本
体に過度な力がかかつて壊すようなことがなく、
確実に動作させることができるケース付き低圧遮
断器を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a low-voltage circuit breaker with a case that allows the ON, OFF, and trip states of the circuit breaker to be clearly determined from the outside depending on the position of the external operation handle. Another purpose of the present invention is to prevent excessive force from being applied to the circuit breaker body and causing it to break even if the external operation handle is operated with strong force using a pull string or the like.
An object of the present invention is to provide a low-voltage circuit breaker with a case that can be operated reliably.
即ち本考案は、外部操作ハンドルを取付けてい
るハンドル軸に設けた操作機構を介しケース内に
取付けてある低圧遮断器本体の遮断器操作レバー
を傾動して入・切動作するものにおいて、前記ハ
ンドル軸に取付けてある駆動レバーと；該駆動レ
バーによつて駆動される従動レバーと遮断器操作
レバーを入・切動作する揺動レバーが設けてあ
り、前記ハンドル軸と軸線方向が平行な駆動軸
と；前記外部操作ハンドルと連動し、低圧遮断器
本体の動作を表示する動作表示用指針と；駆動レ
バーの両側に設けてあり、遮断器操作レバーの傾
動ストロークの終端位置でで駆動レバーを停止さ
せるストツパと；を具備し、前記駆動レバーと従
動レバーの何れか一方には作動突起が、他方には
該作動突起と係合する係合溝が設けてあり、前記
揺動レバーと遮断器操作レバーの何れか一方には
係合突起が、他方には該係合突起と係合する係合
溝が設けてあり、それぞれの係合溝には前記作動
突起及び係合突起が、それぞれ動きを妨げること
なくきつしりと係合しているケース付き低圧遮断
器である。
That is, the present invention provides an apparatus in which a circuit breaker operation lever of a low voltage circuit breaker body installed in a case is turned on and off by tilting through an operation mechanism provided on a handle shaft to which an external operation handle is attached. A drive shaft whose axial direction is parallel to the handle shaft; a drive lever attached to the shaft; a driven lever driven by the drive lever; and a rocking lever that turns on and off the circuit breaker operating lever; and an operation display pointer that works in conjunction with the external operation handle to display the operation of the low-voltage circuit breaker body; and an operation display pointer that is provided on both sides of the drive lever and stops the drive lever at the end position of the tilting stroke of the circuit breaker operation lever. one of the driving lever and the driven lever is provided with an operating protrusion, and the other is provided with an engagement groove that engages with the operating protrusion, and the swinging lever and the breaker are operated. One of the levers is provided with an engagement protrusion, and the other is provided with an engagement groove that engages with the engagement protrusion, and each of the engagement grooves has the operating protrusion and the engagement protrusion that prevent movement. It is a low voltage circuit breaker with a case that engages tightly without obstruction.
以下、本考案を図面に示す実施例に基づいて説
明する。第１図は入状態における内部構造を示す
一部破断側面図、第２図はケースの正面図、第３
図は本考案に係る屋外用低圧遮断器のハンドル操
作機構を示した一部破断正面図、第４図は同側面
図である。また、第５図ないし第８図はそれぞれ
入・切・トリツプ・リセツトの各状態における内
部機構の動作状態を示す説明図、第９図は低圧遮
断器本体の遮断器操作レバーの動作を示す説明図
である。
図において、１は屋外用のケースで、側板２、
上蓋３それに下蓋４よりなる。側板２には上方に
延出した取付用金具５を固定し、その先端部に吊
りボルト６を取り付けている。取付用金具５、吊
りボルト６を介してケース１は腕金等の取付フレ
ーム７に取付得るようにしている。ケース１内部
には低圧遮断器本体８を取付け、その電源側端子
８ａに電源側導線１１を、また負荷側端子８ｂに
負荷側導線１２を接続している。電源側導線１１
及び負荷側導線１２は、ケース側板２の電源側、
負荷側を貫通して取り付けられたブツシング９，
１０を貫通して外部へ引き出している。
この場合、電源側導線１１，負荷側導線１２は
側板２の下向き斜に形成した部分を貫通してい
る。従つて電源側導線１１，負荷側導線１２も斜
めに引き込まれ、電源側端子８ａ，負荷側端子８
ｂはそれに合わせて斜部を形成して導線端子の接
続を便利にしている。ケース１の側方側板の一
方、即ち図示手前側板２ａ（第３図）に軸受１３
を設け、軸受１３にはハンドル軸１４を貫通して
いる。ハンドル軸１４のケース１外部に外部操作
ハンドル１５及び指針１６を取り付け、ケース１
内部には駆動レバー１７を固着している。駆動レ
バー１７の先端部に作動突起１８を設けている。
作動突起１８は丸棒軸状とし、周囲にローラ１９
を嵌合し、その先端部に後述のスプリングを引掛
ける先端部溝１８ａを設けている。
一方、ケース１内に取り付けられた低圧遮断器
本体８はその下面８ｃから遮断器操作レバー８ｄ
が突出しており、下面８ｃには、支持枠２０がね
じ締め等の方法により取り付けてある。支持枠２
０は、低圧遮断器本体８に取り付ける代わりにケ
ース１に直接固定しても差し支えない。支持枠２
０はコ字状に形成し、第３図において左右に支持
枠腕２０ａ，２０ｂを垂下しており、その先端部
分に駆動軸２１を架設した状態で、回動可能に軸
支している。支持枠２０の操作ハンドル１５側、
即ち第３図において左方の支持枠腕２０ａの先端
部には補助枠２２を取り付け、駆動軸２１の左端
部が支持枠腕２０ａより左方に延び出るようにし
ている。駆動軸２１には従動レバー２３Ａと揺動
レバー２３Ｂ，２３Ｃを植立して取り付けてい
る。従動レバー２３Ａは駆動軸２１の左方延出部
に位置し、その先端側にはＵ字状の係合溝２３０
が形成してある。係合溝２３０には駆動レバー１
７の作動突起１８のローラ１９が、可動部分の動
きを妨げない範囲で殆ど遊びがないようにきつし
りと係合している。揺動アーム２３Ｂ，２３Ｃは
遮断器操作レバー８ｄを挟んでその両側に位置し
ている。遮断器操作レバー８ｄの両側方に係合突
起２５，２５が設けてある。係合突起２５，２５
にはそれぞれローラ２６，２６を嵌合している。
前記揺動アーム２３Ｂ，２３Ｃの先端側には係合
溝２３０と同形状のＵ字状の係合溝２３１，２３
２が形成してある。係合溝２３１，２３２には、
揺動アーム２３Ｂ，２３Ｃの係合突起２５，２５
に取付けてあるローラ２６，２６が、可動部分の
動きを妨げない範囲で殆ど遊びがないようにきつ
しりと係合している。これによつて外部操作ハン
ドル１５の位置は低圧遮断器本体８の入・切・ト
リツプの位置に揺れ動くことなく確実に停止し、
これと連動する指針１６もその位置が外部から明
確に判断できる。なお、ローラ１９、ローラ２６
は作動突起１８、係合突起２５，２５と従動レバ
ー２３Ａと揺動レバー２３Ｂ，２３Ｃとの間の動
作力伝達を円滑にするためのもので、作動突起１
８、係合突起２５と従動レバー２３Ａ、揺動レバ
ー２３Ｂ，２３Ｃとの間の摩擦力を問題にしない
場合や、油脂類の塗布や摩擦抵抗の小さい樹脂等
を用いるなど、摩擦力を低減する別の手段を講じ
るなどすれば、ローラ１９，２６は必らずしも必
要ではない。
第３図に示すように、ハンドル軸１４の中心よ
り作動突起１８の中心までの距離d1、遮断器内部
機構の遮断器操作レバー回動中心８ｅより遮断器
操作レバー８ｄの係合突起２５までの距離をd2と
すると、一般にd1＜d2とする。これは、遮断器操
作レバー８ｄの駆動ストロークが小さいので、操
作ハンドル１５の操作ストロークを大きくして操
作しやすくするとともに、指針１６の動きを大き
くして入・切・トリツプ等の外部表示を明確にす
るためである。
符号２７，２７はストツプリングである。２８
は低圧遮断器本体８をケース１に取り付けるため
の基台で、この基台２８と前記作動突起１８の先
端部溝１８ａとの間にハンドルスプリング２９を
張設している。スプリング２９の力線は入状態の
とき、ハンドル軸１４の回動中心よりわずかに切
側を通るようにする。この状態を第５図に示す。
これにより入状態で操作ハンドル１５および低圧
遮断器本体８の投入状態を維持する。第４図にお
いて３０，３１はそれぞれ入側・切側で駆動レバ
ー１７に当接し、外部操作ハンドル１５の過操作
を防止するストツパで、ねじにより調節可能にし
ている。また、第２図において符号３２で示す箇
所は、駆動軸２１周辺の遮断器操作レバー操作部
で、その詳細は省略している。第５図に示す状態
から外部操作ハンドル１５を切側に操作すれば操
作力にスプリング２９の付勢力が加勢する。外部
操作ハンドル１５には常に切方向への付勢力が作
用し、遮断器操作レバー８ｄは遮断器内部状態に
応動し、各状態位置での遮断器操作レバー８ｄの
保持力は強い。このため外部操作ハンドル１５お
よびそれと共動する指針１６は遮断器操作レバー
８ｄの状態すなわち遮断器内部状態に確実に応動
し、したがつて指針１６によつて内部状態を確実
に表示できる。第６図は切状態を示す。第７図は
低圧遮断器本体８がトリツプしたときの状態を示
す。トリツプにより遮断器操作レバー８ｄはトリ
ツプ位置に移動するが、その動きは駆動軸２１、
揺動レバー２３Ｂ，２３Ｃ、従動レバー２３Ａ、
駆動レバー１７を介して伝達され、外部操作ハン
ドル１５および指針１６をトリツプ位置即ち入と
切との中間位置に追従移動させる。この場合上述
のようにスプリング２９の付勢力は、この追従移
動を助ける。第８図はトリツプしたものをリセツ
トするときの状態を示す。この場合外部操作ハン
ドル１５を切よりさらに行過ぎるように操作する
ことにより、内部の遮断器操作レバー８ｄが同様
に切位置を行過ぎてリセツト位置まで駆動され遮
断器内部機構がリセツトされる。リセツト後は遮
断器内部機構の保持力により遮断器操作レバー８
ｄおよび外部操作ハンドル１５は切位置に保持さ
れ第６図の状態となる。
第９図は低圧低圧遮断器本体８の遮断器操作レ
バー８ｄの動作状態を示し、内部機構のハンドル
回動中心８ｅを中心として、入・切・トリツプ・
リセツトの各位置を示し、これら各位置と前記第
４図の外部操作ハンドル１５の入・切・トリツ
プ・リセツトの各位置とが対応する。また、上記
において外部操作ハンドル１５と指針１６は同じ
ハンドル軸１４に取り付け共動するようにしてい
るが、別に指針軸を設け、駆動軸に取りつけられ
た従動レバーと係合する指針レバーを介して指針
を連動させて動作表示しても良い。その場合、上
記機構の構成は、外部操作ハンドル１５、ハンド
ル軸１４、駆動レバー１７、揺動アーム２３Ｂ，
２３Ｃと同一の構成、同一の動作となる。外部操
作ハンドル１５と指針１６の共動方式と別設置方
式は、後者が部品が多くなり構造が複雑になる点
の違いがあるだけで原理的にはまつたく同一のも
のである。
Hereinafter, the present invention will be explained based on embodiments shown in the drawings. Figure 1 is a partially cutaway side view showing the internal structure in the closed state, Figure 2 is a front view of the case, and Figure 3 is a partially cutaway side view showing the internal structure in the closed state.
The figure is a partially cutaway front view showing the handle operation mechanism of the outdoor low-voltage circuit breaker according to the present invention, and FIG. 4 is a side view of the same. In addition, Figures 5 to 8 are explanatory diagrams showing the operational states of the internal mechanism in each state of on, off, trip, and reset, respectively, and Figure 9 is an explanatory diagram showing the operation of the circuit breaker operating lever of the low voltage circuit breaker main body. It is a diagram. In the figure, 1 is an outdoor case, side plates 2,
It consists of an upper lid 3 and a lower lid 4. A mounting bracket 5 extending upward is fixed to the side plate 2, and a hanging bolt 6 is attached to the tip thereof. The case 1 can be attached to a mounting frame 7 such as a armrest via mounting fittings 5 and hanging bolts 6. A low voltage circuit breaker main body 8 is installed inside the case 1, and a power supply side conductor 11 is connected to its power supply side terminal 8a, and a load side conductor 12 is connected to its load side terminal 8b. Power supply side conductor 11
and the load side conductor 12 is connected to the power supply side of the case side plate 2,
Bushing 9 installed through the load side,
10 and is drawn out to the outside. In this case, the power supply side conductor 11 and the load side conductor 12 pass through the downwardly inclined portion of the side plate 2. Therefore, the power supply side conductor 11 and the load side conductor 12 are also drawn diagonally, and the power supply side terminal 8a and the load side terminal 8
b is formed with a slanted portion to facilitate connection of the conductor terminal. A bearing 13 is mounted on one of the side plates of the case 1, that is, the front side plate 2a (FIG. 3).
is provided, and the handle shaft 14 passes through the bearing 13. Attach the external operation handle 15 and the pointer 16 to the outside of the case 1 on the handle shaft 14, and
A drive lever 17 is fixed inside. An operating protrusion 18 is provided at the tip of the drive lever 17.
The operating protrusion 18 has a round bar shaft shape, and a roller 19 is arranged around it.
A distal end groove 18a is provided at the distal end of which a spring (to be described later) is hooked. On the other hand, the low voltage circuit breaker main body 8 installed in the case 1 is connected to the circuit breaker operating lever 8d from its lower surface 8c.
protrudes, and a support frame 20 is attached to the lower surface 8c by a method such as screw tightening. Support frame 2
0 may be directly fixed to the case 1 instead of being attached to the low voltage circuit breaker main body 8. Support frame 2
0 is formed in a U-shape, and has supporting frame arms 20a and 20b hanging from the left and right in FIG. 3, and is rotatably supported with a drive shaft 21 installed at the tip thereof. The operation handle 15 side of the support frame 20,
That is, in FIG. 3, the auxiliary frame 22 is attached to the tip of the left support frame arm 20a, so that the left end of the drive shaft 21 extends to the left beyond the support frame arm 20a. A driven lever 23A and swing levers 23B and 23C are mounted on the drive shaft 21 in an upright manner. The driven lever 23A is located on the left side extension of the drive shaft 21, and has a U-shaped engagement groove 230 on its tip side.
is formed. The drive lever 1 is located in the engagement groove 230.
The rollers 19 of the operating projections 18 of No. 7 are tightly engaged with almost no play within the range that does not impede the movement of the movable parts. The swing arms 23B and 23C are located on both sides of the circuit breaker operating lever 8d. Engaging protrusions 25, 25 are provided on both sides of the circuit breaker operating lever 8d. Engagement protrusions 25, 25
A roller 26, 26 is fitted in each.
U-shaped engagement grooves 231 and 23 having the same shape as the engagement groove 230 are provided on the tip sides of the swing arms 23B and 23C.
2 is formed. The engagement grooves 231 and 232 have
Engagement protrusions 25, 25 of swing arms 23B, 23C
The rollers 26, 26 mounted on the rollers 26, 26 are tightly engaged with almost no play as long as the movement of the movable parts is not hindered. As a result, the position of the external operation handle 15 is reliably stopped at the on/off/trip position of the low voltage circuit breaker main body 8 without swinging.
The position of the pointer 16 interlocked with this can also be clearly determined from the outside. Note that roller 19 and roller 26
is for smooth transmission of operating force between the operating protrusion 18, the engaging protrusions 25, 25, the driven lever 23A, and the swing levers 23B, 23C.
8. Reduce the frictional force between the engagement protrusion 25 and the driven lever 23A, swing levers 23B, 23C by applying oil or using resin with low frictional resistance, etc. If other measures are taken, the rollers 19, 26 are not necessarily necessary. As shown in FIG. 3, the distance d 1 from the center of the handle shaft 14 to the center of the operating protrusion 18, and from the breaker operating lever rotation center 8e of the breaker internal mechanism to the engaging protrusion 25 of the breaker operating lever 8d. If the distance between is d 2 , then generally d 1 <d 2 . Since the driving stroke of the circuit breaker operating lever 8d is small, the operating stroke of the operating handle 15 is increased to make it easier to operate, and the movement of the pointer 16 is increased to clearly indicate external indications such as ON, OFF, and TRIP. This is to make it happen. Reference numerals 27 and 27 are stop rings. 28
is a base for attaching the low voltage circuit breaker main body 8 to the case 1, and a handle spring 29 is stretched between the base 28 and the tip groove 18a of the operating projection 18. When the spring 29 is in the applied state, the line of force of the spring 29 is made to pass slightly on the cutting side of the rotation center of the handle shaft 14. This state is shown in FIG.
This maintains the operating handle 15 and the low pressure circuit breaker main body 8 in the closed state. In FIG. 4, reference numerals 30 and 31 are stoppers that abut the drive lever 17 on the entry side and the cut side, respectively, to prevent over-operation of the external operating handle 15, and are adjustable with screws. Further, in FIG. 2, a portion indicated by the reference numeral 32 is a circuit breaker operating lever operating portion around the drive shaft 21, and its details are omitted. If the external operation handle 15 is operated toward the cut side from the state shown in FIG. 5, the urging force of the spring 29 is added to the operating force. A biasing force in the cutting direction always acts on the external operation handle 15, the circuit breaker operation lever 8d responds to the internal state of the circuit breaker, and the holding force of the circuit breaker operation lever 8d in each state position is strong. For this reason, the external operating handle 15 and the pointer 16 that co-operate therewith reliably respond to the state of the circuit breaker operating lever 8d, that is, the internal state of the circuit breaker, and therefore the pointer 16 can reliably display the internal state. FIG. 6 shows the off state. FIG. 7 shows the state when the low voltage circuit breaker main body 8 is tripped. The trip moves the circuit breaker operating lever 8d to the trip position, but this movement is caused by the drive shaft 21,
Swing levers 23B, 23C, driven lever 23A,
The signal is transmitted via the drive lever 17, and the external operating handle 15 and the pointer 16 are moved to the trip position, that is, an intermediate position between on and off. In this case, as described above, the biasing force of the spring 29 assists in this follow-up movement. FIG. 8 shows the situation when resetting a tripped device. In this case, by operating the external operating handle 15 beyond the OFF position, the internal circuit breaker operating lever 8d is similarly driven beyond the OFF position to the reset position, and the circuit breaker internal mechanism is reset. After resetting, the circuit breaker operating lever 8 is moved by the holding force of the circuit breaker internal mechanism.
d and the external operating handle 15 are held in the cut position, resulting in the state shown in FIG. FIG. 9 shows the operating state of the circuit breaker operation lever 8d of the low-voltage circuit breaker main body 8.
Each reset position is shown, and each of these positions corresponds to each of the on/off/trip/reset positions of the external operation handle 15 shown in FIG. 4. In addition, in the above, the external operation handle 15 and the pointer 16 are attached to the same handle shaft 14 so that they move together, but a separate pointer shaft is provided, and the pointer lever is connected to the driven lever attached to the drive shaft. The operation may be displayed in conjunction with the pointer. In that case, the structure of the above mechanism is as follows: external operation handle 15, handle shaft 14, drive lever 17, swing arm 23B,
It has the same configuration and operation as 23C. The joint operation method and the separate installation method for the external operating handle 15 and the pointer 16 are essentially the same, with the only difference being that the latter has more parts and a more complicated structure.
上述したように本考案によれば、駆動レバーの
両側に、遮断器操作レバーの傾動ストロークの終
端位置で駆動レバーを停止させるストツパを設け
たので、外部操作ハンドルを大きい角度で、かつ
強い力で操作しても内部の低圧遮断器本体に過度
な力がかかつて壊すようなことがなく確実に動作
させることができる。
また、駆動レバーと従動レバーの何れか一方に
は作動突起が、他方には該作動突起と係合する係
合溝が設けてあり、揺動レバーと遮断器操作レバ
ーの何れか一方には係合突起が、他方には該係合
突起と係合する係合溝が設けてあり、それぞれの
係合溝には前記作動突起及び係合突起が、それぞ
れ動きを妨げることなくきつしりと係合している
ので、低圧遮断器本体がトリツプ動作したときに
はその状態が外部操作ハンドルに確実に伝達さ
れ、外部操作ハンドル及び指針の位置によつて遮
断器の入・切・トリツプの状態が外部から明確に
判断できる。
As described above, according to the present invention, stoppers are provided on both sides of the drive lever to stop the drive lever at the end position of the tilting stroke of the circuit breaker operating lever, so the external operating handle cannot be moved at a large angle and with a strong force. Even when operated, the internal low-voltage circuit breaker body is not subjected to excessive force and will not be damaged, and it can be operated reliably. Further, one of the driving lever and the driven lever is provided with an operating protrusion, and the other is provided with an engagement groove that engages with the operating protrusion, and one of the swinging lever and the circuit breaker operating lever is provided with an engaging groove that engages with the operating protrusion. A mating protrusion is provided on the other side, and an engaging groove that engages with the engaging protrusion is provided on the other side, and the operating protrusion and the engaging protrusion are tightly engaged with each of the engaging grooves without hindering movement. Therefore, when the low voltage circuit breaker body trips, the state is reliably transmitted to the external operation handle, and the on/off/trip status of the circuit breaker can be clearly determined from the outside depending on the position of the external operation handle and pointer. can be judged.
第１図は入状態における内部構造を示す一部破
断側面図、第２図はケースの正面図、第３図は本
考案に係る屋外用低圧遮断器のハンドル操作機構
を示した一部破断正面図、第４図は同側面図、第
５図ないし第８図はそれぞれ入・切・トリツプ・
リセツトの各状態における内部機構の動作状態を
示す説明図、第９図は低圧遮断器本体の遮断器操
作レバーの動作を示す説明図である。
１：ケース、８：低圧遮断器本体、８ｄ：遮断
器操作レバー、１４：ハンドル軸、１５：外部操
作ハンドル、１６：指針、１７：駆動レバー、１
８：作動突起、２１：駆動軸、２３：揺動レバ
ー、２５：係合突起、３０，３１：ストツパ、２
３０，２３１，２３２：係合溝。
Fig. 1 is a partially cutaway side view showing the internal structure in the closed state, Fig. 2 is a front view of the case, and Fig. 3 is a partially cutaway front view showing the handle operation mechanism of the outdoor low voltage circuit breaker according to the present invention. Figure 4 is the same side view, Figures 5 to 8 are on, off, trip, and
FIG. 9 is an explanatory diagram showing the operation state of the internal mechanism in each reset state, and FIG. 9 is an explanatory diagram showing the operation of the circuit breaker operation lever of the low voltage circuit breaker main body. 1: Case, 8: Low voltage circuit breaker body, 8d: Circuit breaker operation lever, 14: Handle shaft, 15: External operation handle, 16: Pointer, 17: Drive lever, 1
8: Operating projection, 21: Drive shaft, 23: Swing lever, 25: Engagement projection, 30, 31: Stopper, 2
30, 231, 232: Engagement groove.
Claims (1)
設けた操作機構を介しケース内に取付けてある低
圧遮断器本体の遮断器操作レバーを傾動して入・
切動作するものにおいて、 前記ハンドル軸１４に取付けてある駆動レバー
１７と； 該駆動レバー１７によつて駆動される従動レバ
ー２３Ａと遮断器操作レバー８ｄを入・切動作す
る揺動レバー２３Ｂ，２３Ｃが設けてあり、前記
ハンドル軸１４と軸線方向が平行な駆動軸２１
と； 前記外部操作ハンドル１５と連動し、低圧遮断
器本体８の動作を表示する動作表示用指針１６
と； 駆動レバー１７の両側に設けてあり、遮断器操
作レバー８ｄの傾動ストロークの終端位置で駆動
レバー１７を停止させるストツパ３０，３１と； を具備し、前記駆動レバー１７と従動レバー２３
Ａの何れか一方には作動突起１８が、他方には該
作動突起１８と係合する係合溝２３０が設けてあ
り、前記揺動レバー２３Ｂ，２３Ｃと遮断器操作
レバー８ｄの何れか一方には係合突起２５，２５
が、他方には該係合突起２５，２５と係合する係
合溝２３１，２３２が設けてあり、それぞれの係
合溝２３０，２３１，２３２には前記作動突起１
８及び係合突起２５，２５が、それぞれ動きを妨
げることなくきつしりと係合していることを特徴
とするケース付き低圧遮断器。[Scope of Claim for Utility Model Registration] The circuit breaker operating lever of the low voltage circuit breaker body installed inside the case is tilted and turned on/off via the operating mechanism provided on the handle shaft to which the external operating handle is attached.
In the one that operates to cut the circuit breaker, there is a drive lever 17 attached to the handle shaft 14; a driven lever 23A driven by the drive lever 17; and swing levers 23B and 23C that operate the circuit breaker operation lever 8d to turn on and off. a drive shaft 21 whose axial direction is parallel to the handle shaft 14;
and; an operation display pointer 16 that works in conjunction with the external operation handle 15 and displays the operation of the low voltage circuit breaker main body 8;
and stoppers 30 and 31 which are provided on both sides of the drive lever 17 and stop the drive lever 17 at the end position of the tilting stroke of the circuit breaker operating lever 8d;
An operating protrusion 18 is provided on either one of the swing levers 23B, 23C and an engaging groove 230 that engages with the operating protrusion 18. are the engaging protrusions 25, 25
However, the other side is provided with engagement grooves 231, 232 that engage with the engagement protrusions 25, 25, and each of the engagement grooves 230, 231, 232 has the operating protrusion 1.
8 and the engaging protrusions 25, 25 are each tightly engaged without hindering movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984162697U JPH0310590Y2 (en) | 1984-10-26 | 1984-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984162697U JPH0310590Y2 (en) | 1984-10-26 | 1984-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6177530U JPS6177530U (en) | 1986-05-24 |
| JPH0310590Y2 true JPH0310590Y2 (en) | 1991-03-15 |
Family
ID=30720569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984162697U Expired JPH0310590Y2 (en) | 1984-10-26 | 1984-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310590Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613318B2 (en) * | 1976-09-16 | 1981-03-27 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613318U (en) * | 1979-07-11 | 1981-02-04 | ||
| JPS56170857U (en) * | 1980-05-20 | 1981-12-17 |
-
1984
- 1984-10-26 JP JP1984162697U patent/JPH0310590Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613318B2 (en) * | 1976-09-16 | 1981-03-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6177530U (en) | 1986-05-24 |
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