JP3386290B2 - Multi-pole circuit breaker - Google Patents
Multi-pole circuit breakerInfo
- Publication number
- JP3386290B2 JP3386290B2 JP14830195A JP14830195A JP3386290B2 JP 3386290 B2 JP3386290 B2 JP 3386290B2 JP 14830195 A JP14830195 A JP 14830195A JP 14830195 A JP14830195 A JP 14830195A JP 3386290 B2 JP3386290 B2 JP 3386290B2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- pole
- shaft
- holder
- closing
- 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
Links
Landscapes
- Breakers (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】この発明は、電圧線を開閉する主
極と中性線を開閉する中性極とを備え、主として３相４
線式回路に使用される多極形回路遮断器に関する。
【０００２】
【従来の技術】上記多極形回路遮断器として、本出願人
が先に実用新案登録出願したものがある（実公昭６４−
３１６２号公報参照）。図４にこの出願に係る多極形回
路遮断器の中性極における縦断面図を示す。図４におい
て、図示しない主極に対して早入り遅切りされる中性極
の可動接触子１は、主極と共通の開閉軸２に固着された
リンクホルダ３に連結されたリンク部材４及び５により
開閉駆動されるようになっている。
【０００３】図５は上記開閉軸部分を拡大して示すもの
で、（Ａ）は正面図、（Ｂ）はそのリンクホルダの側面
図である。図５において、絶縁物からなる角形断面の開
閉軸２には、３相の主極の図示しない可動接触子を保持
するホルダ６及びリンクホルダ３が固着されている。ホ
ルダ６及びリンクホルダ３はいずれも鋼板により二股状
に形成され、やはり鋼板からなるかしめ金具７を介して
開閉軸２に固着されている。
【０００４】
【発明が解決しようとする課題】上に示した従来構成に
おいて、ホルダ６及びリンクホルダ３は開閉軸２と別途
に製作され、かしめ金具７を介して開閉軸２に固着され
ているが、このような構成は部品点数が多く、またかし
め加工が面倒であるため、組立に時間がかかるという問
題があった。また、従来は中性極品用の開閉軸は主極の
みの標準品用と別部品となり、開閉軸を２種類必要とす
る問題があった。そこで、この発明は、部品点数を減ら
して組立時間の短縮を図るとともに、標準品用の開閉軸
を中性極品用にも使用できるようにした多極回路遮断器
を提供することを目的とするものである。
【０００５】
【課題を解決するための手段】この発明は、電圧線を開
閉する主極と中性線を開閉する中性極とを備え、前記主
極の可動接触子はホルダに保持されて開閉軸により開閉
駆動されるとともに、前記中性極の可動接触子は前記開
閉軸に固着されたリンクホルダに連結されたリンク部材
を介して前記主極に対して早入り遅切り駆動される多極
形回路遮断器において、前記主極の可動接触子を保持す
るホルダと開閉軸とをモールド樹脂により一体的に形成
するとともに、前記開閉軸と同軸の取付軸を有する中性
極のリンクホルダをモールド樹脂により形成し、このリ
ンクホルダを前記取付軸を介して前記開閉軸に着脱可能
に連結するようにするものとする。
【０００６】
【作用】従来は別部品であった主極の可動接触子ホルダ
と開閉軸とをモールド樹脂により一体的に形成すること
によりこれらが１部品になるとともに、この開閉軸を標
準品用とし、これにモールド樹脂により別途に形成した
リンクホルダを取付軸を介して着脱可能に連結すること
により、標準品用の開閉軸のみ用意し、これにリンクホ
ルダを連結すれば中性極品用の開閉軸を構成することが
できる。
【０００７】
【実施例】図１はこの発明の実施例を示す開閉軸部分の
斜視図、図２は図１の開閉軸部分の分解正面図、図３は
図１の開閉軸部分を組み込んだ多極回路遮断器の中性極
部分の縦断面図である。なお、従来例と対応する部分に
は同一の符号を用いるものとする。図１及び図２におい
て、３相の主極の可動接触子を保持するホルダ６と開閉
軸２とはモールド樹脂により一体的に形成され、標準品
用の開閉軸部分が構成されている。そして、この標準品
用の開閉軸部分と別個に、開閉軸２と同軸の取付軸８を
有するリンクホルダ３がモールド樹脂により形成されて
いる。しかして、中性極品の開閉軸部分は標準品用のも
のにリンクホルダ３を着脱可能に連結して構成するよう
になっている。
【０００８】ここで、図２において、開閉軸２の端面に
は、中心にねじ穴２ａが設けられ、またその両側に一対
の円形凹部２ｂが設けられる一方、取付軸８の中心には
段付の貫通穴８ａが設けられ、また端面に円形凹部２ｂ
に対応して一対の円形突起８ｂが設けられている。そこ
で、開閉軸２にリンクホルダ３を連結するには、円形凹
部２ｂに円形突起８ｂを嵌合させ、貫通穴８ａを通して
ねじ９をねじ穴２ａにねじ込む。ねじ９の頭部は段付の
ねじ穴２ａの大径部に収まる。リンクホルダ３が連結さ
れた開閉軸部分は図３に示すように回路遮断器本体に組
み込まれ、従来構成と同様に機能する。このような構成
によれば、従来は４種類、８点を要した開閉軸部分の部
品が３種類、３点で済むとともに、リンクホルダ３とね
じ９を用意しておけば、必要に応じて中性極品用の開閉
軸部分を製作できる。
【０００９】
【発明の効果】この発明によれば、中性極を駆動するリ
ンクホルダを有する開閉軸部分が１部品に一体化される
ので組立時間が著しく短縮されるとともに、標準品用の
開閉軸を中性極品用にも使用できるので、部品在庫費用
が低減する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a main pole for opening and closing a voltage line and a neutral pole for opening and closing a neutral line.
The present invention relates to a multi-pole circuit breaker used for a wire circuit. 2. Description of the Related Art As the above-mentioned multi-pole type circuit breaker, there is one in which the present applicant has previously filed an application for registration of a utility model (Japanese Utility Model Publication No.
No. 3162). FIG. 4 is a longitudinal sectional view of a neutral pole of the multipole circuit breaker according to the present application. In FIG. 4, a movable contact 1 of a neutral pole, which is quickly and lately cut with respect to a main pole (not shown), includes a link member 4 connected to a link holder 3 fixed to an opening / closing shaft 2 common to the main pole and 5 is driven to open and close. FIG. 5 is an enlarged view of the opening / closing shaft portion. FIG. 5A is a front view, and FIG. 5B is a side view of the link holder. In FIG. 5, a holder 6 and a link holder 3 for holding movable contacts (not shown) of three-phase main poles are fixed to an opening / closing shaft 2 having a rectangular cross section made of an insulator. Each of the holder 6 and the link holder 3 is formed of a steel plate in a bifurcated shape, and is fixed to the opening / closing shaft 2 via a caulking fitting 7 also made of a steel plate. [0004] In the above-described conventional structure, the holder 6 and the link holder 3 are manufactured separately from the opening / closing shaft 2, and are fixed to the opening / closing shaft 2 via the caulking metal 7. However, such a configuration has a problem in that it takes a long time to assemble because the number of parts is large and caulking is troublesome. Conventionally, the open / close shaft for the neutral pole product is a separate part from the standard product with only the main pole, and there is a problem that two types of open / close shafts are required. Therefore, the present invention aims to shorten the assembly time by reducing the number of parts and to open and close the shaft for a standard product.
Circuit breaker that can be used for neutral pole products
The purpose is to provide. The present invention comprises a main pole for opening and closing a voltage line and a neutral pole for opening and closing a neutral line. The movable contact of the main pole is held by a holder. The open / close drive is performed by an opening / closing shaft, and the movable contact of the neutral pole is driven to enter the main pole early and late through a link member connected to a link holder fixed to the open / close shaft. In the pole-type circuit breaker, a holder for holding the movable contact of the main pole and an opening / closing shaft are integrally formed with a mold resin, and a neutral pole link holder having a mounting shaft coaxial with the opening / closing shaft is provided. The link holder is formed of a mold resin, and this link holder is detachably connected to the opening / closing shaft via the mounting shaft. The movable contact holder of the main pole, which is conventionally a separate part,
And the opening / closing shaft are integrally formed by a mold resin, so that they become one part . The opening / closing shaft is used for a standard product, and a link holder separately formed by a mold resin is attached to this. By detachably connecting via a shaft, only a standard product opening / closing shaft is prepared, and if a link holder is connected thereto, a neutral pole product opening / closing shaft can be formed. [0007] [Embodiment] FIG. 1 is a perspective view of the opening and closing shaft section of an embodiment of the present invention, FIG 2 is an exploded front view of the opening and closing shaft section of FIG. 1, FIG. 3 incorporates the opening and closing shaft section of FIG. 1 It is a longitudinal cross-sectional view of the neutral pole part of a multi-pole circuit breaker. Note that the same reference numerals are used for the portions corresponding to the conventional example. 1 and 2 , a holder 6 for holding a movable contact of a three-phase main pole and opening and closing
Shaft 2 is integrally formed with mold resin, and is a standard product
Opening / closing shaft portion is configured. And this standard product
Separately from the opening / closing shaft portion for use, a mounting shaft 8 coaxial with the opening / closing shaft 2
Link holder 3 is formed of mold resin
I have. The open / close shaft portion of the neutral electrode product is configured by detachably connecting the link holder 3 to the standard product. In FIG. 2, a screw hole 2a is provided at the center of the end surface of the opening and closing shaft 2, and a pair of circular recesses 2b are provided on both sides thereof. And a circular recess 2b is provided on the end face.
Is provided with a pair of circular projections 8b. Therefore, in order to connect the link holder 3 to the opening / closing shaft 2, the circular protrusion 8b is fitted into the circular concave portion 2b, and the screw 9 is screwed into the screw hole 2a through the through hole 8a. The head of the screw 9 fits into the large diameter portion of the stepped screw hole 2a. Link holder 3 is connected
The opened / closed shaft portion is incorporated in the circuit breaker main body as shown in FIG. 3 and functions in the same manner as the conventional configuration. According to such a configuration, only three types and three points are required for the opening / closing shaft portion, which conventionally required four types and eight points, and if the link holder 3 and the screw 9 are prepared, if necessary, The opening and closing shaft for neutral pole products can be manufactured. [0009] [Effect of the Invention] According to the present invention, since the opening and closing shaft portion having a link holder to drive the neutral pole is integrated into a piece with the assembly time is significantly reduced, the opening and closing of a standard Since the shaft can also be used for neutral pole products, parts inventory costs are reduced.
【図面の簡単な説明】
【図１】この発明の実施例の多極回路遮断器の開閉軸部
分の斜視図である。
【図２】図１の開閉軸部分の分解正面図である。
【図３】この発明の実施例の多極回路遮断器の中性極部
分の縦断面図である。
【図４】従来の多極回路遮断器の中性極部分の縦断面図
である。
【図５】図４における開閉軸部分を示し、（Ａ）は正面
図、（Ｂ）はそのリンクホルダ部分の側面図である。
【符号の説明】
２ 開閉軸
３ リンクホルダ
４ リンク部材
５ リンク部材
６ ホルダ
８ 取付軸BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a switching shaft portion of a multi-pole circuit breaker according to an embodiment of the present invention. 2 is an exploded front view of the opening and closing shaft section of FIG. FIG. 3 is a longitudinal sectional view of a neutral pole portion of the multipole circuit breaker according to the embodiment of the present invention. FIG. 4 is a longitudinal sectional view of a neutral pole portion of a conventional multi-pole circuit breaker. 5A and 5B show an opening and closing shaft portion in FIG. 4, wherein FIG. 5A is a front view and FIG. 5B is a side view of the link holder portion. [Description of Signs] 2 Opening / closing shaft 3 Link holder 4 Link member 5 Link member 6 Holder 8 Mounting shaft
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−280320（ＪＰ，Ａ) 特開 平２−46618（ＪＰ，Ａ) 特開 昭59−186222（ＪＰ，Ａ) 特開 平６−325678（ＪＰ，Ａ) 特開 昭61−279026（ＪＰ，Ａ) 実公 昭64−3162（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 71/10 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-280320 (JP, A) JP-A-2-46618 (JP, A) JP-A-59-186222 (JP, A) JP-A-6-186 325678 (JP, A) JP-A-61-279026 (JP, A) Jiko 64-3162 (JP, Y1) (58) Fields investigated (Int. Cl. 7 , DB name) H01H 71/10
Claims (1)
中性極とを備え、前記主極の可動接触子はホルダに保持
されて開閉軸により開閉駆動されるとともに、前記中性
極の可動接触子は前記開閉軸に固着されたリンクホルダ
に連結されたリンク部材を介して前記主極に対して早入
り遅切り駆動される多極形回路遮断器において、 前記主極の可動接触子を保持するホルダと開閉軸とをモ
ールド樹脂により一体的に形成するとともに、前記開閉
軸と同軸の取付軸を有する中性極のリンクホルダをモー
ルド樹脂により形成し、このリンクホルダを前記取付軸
を介して前記開閉軸に着脱可能に連結するようにしたこ
とを特徴とする多極形回路遮断器。 (57) [Claims] [Claim 1] A main pole for opening and closing a voltage line and a neutral line for opening and closing
With a neutral pole, and the movable contact of the main pole is held by a holder
And is driven to open and close by the open / close shaft.
The movable contact of the pole is a link holder fixed to the opening / closing shaft.
Quickly enters the main pole via a link member connected to
In a multipole circuit breaker driven late, the holder for holding the movable contact of the main pole and the open / close shaft are modeled.
Molded integrally with the mold resin
Moderate a neutral pole link holder with a mounting shaft coaxial with the shaft.
The link holder is made of
To be detachably connected to the opening / closing shaft through
And a multi-pole circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14830195A JP3386290B2 (en) | 1995-05-23 | 1995-05-23 | Multi-pole circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14830195A JP3386290B2 (en) | 1995-05-23 | 1995-05-23 | Multi-pole circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08321241A JPH08321241A (en) | 1996-12-03 |
| JP3386290B2 true JP3386290B2 (en) | 2003-03-17 |
Family
ID=15449728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14830195A Expired - Fee Related JP3386290B2 (en) | 1995-05-23 | 1995-05-23 | Multi-pole circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3386290B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100317017B1 (en) * | 1999-08-28 | 2001-12-22 | 이영호 | Automatic transfer switch using a closed-transition neutral contact unit |
| KR100425191B1 (en) * | 2001-12-07 | 2004-03-30 | 엘지산전 주식회사 | trip-bar structure of multipole combination type Circuit Breaker |
-
1995
- 1995-05-23 JP JP14830195A patent/JP3386290B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08321241A (en) | 1996-12-03 |
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