JP7503451B2

JP7503451B2 - Circuit Breakers

Info

Publication number: JP7503451B2
Application number: JP2020141135A
Authority: JP
Inventors: 佑太山中; 貴広新美
Original assignee: 河村電器産業株式会社
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2024-06-20
Anticipated expiration: 2040-08-24
Also published as: JP2022036764A

Description

本発明は、たとえば分電盤内等に設置される回路遮断器に関するものである。 The present invention relates to a circuit breaker that is installed, for example, in a distribution board.

従来、たとえば単相三線式電路に使用される回路遮断器では、電源側端子を所謂プラグイン方式の端子として構成することがある。また、そのような回路遮断器としては、電源側端子における端子金具の位置を、本体ケース外から変更可能としたものが考案されている（たとえば特許文献１）。 Conventionally, for example, in circuit breakers used in single-phase three-wire circuits, the power supply side terminals are sometimes configured as so-called plug-in type terminals. In addition, as such circuit breakers, there have been devised ones in which the position of the terminal fittings on the power supply side terminals can be changed from outside the main body case (for example, Patent Document 1).

特開２００１－３５３４１号公報JP 2001-35341 A

しかしながら、特許文献１に記載の回路遮断器では、端子金具の位置調整に係る操作が煩わしいという問題がある。また、現時点における端子金具の位置が判別しづらいため、分電盤内への設置時等において各種作業が一層煩雑になるという問題もある。 However, the circuit breaker described in Patent Document 1 has a problem in that the operation for adjusting the position of the terminal fittings is cumbersome. In addition, since it is difficult to determine the current position of the terminal fittings, there is also a problem in that various operations become even more cumbersome when installing the circuit breaker in a distribution board, etc.

そこで、本発明は、上記問題に鑑みなされたものであって、端子金具の位置調整を容易に行うことができる上、現時点における端子金具の位置を容易に把握することができる回路遮断器を提供しようとするものである。 The present invention has been made in consideration of the above problems, and aims to provide a circuit breaker that allows the position of the terminal fittings to be easily adjusted and the current position of the terminal fittings to be easily grasped.

上記目的を達成するために、本発明のうち請求項１に記載の発明は、本体ケースに、導電バーを差し込み接続可能な３つの端子口が上下方向に並設されてなる回路遮断器であって、前記本体ケースに、前記本体ケース外に位置する操作部、及び前記操作部に連結され、前記本体ケース内に位置して第１端子金具を保持する保持部を備えた第１保持部材が、前記第１端子金具が上側の前記端子口に対応した位置にある第１位置と、中央の前記端子口に対応した位置にある第２位置との間で上下方向へスライド可能に取り付けられているとともに、前記第１保持部材の下側に、前記本体ケース外に位置する操作部、及び前記操作部に連結され、前記本体ケース内に位置して第２端子金具を保持する保持部を備えた第２保持部材が、前記第２端子金具が中央の前記端子口に対応した位置にある前記第２位置と、下側の前記端子口に対応した位置にある第３位置との間で上下方向へスライド可能であり、前記第１保持部材の前記操作部は、前記第１位置と前記第２位置との間でのスライド中に上側の前記端子口の少なくとも一部を被覆し、前記第２保持部材の前記操作部は、前記第２位置と前記第３位置との間でのスライド中に中央の前記端子口の少なくとも一部を被覆することを特徴とする。
請求項２に記載の発明は、請求項１に記載の発明において、前記本体ケース表面における両前記保持部材のスライド範囲内に、両前記端子金具の位置を示す３つの確認表示部が設けられており、前記第１保持部材が前記第２位置にあり、且つ、前記第２保持部材が前記第３位置にあると、前記第１端子金具が中央の前記端子口に対応した位置にあり、且つ、前記第２端子金具が下側の前記端子口に対応した位置にあることを示す第１確認表示部が露出する一方、前記第１端子金具が上側の前記端子口に対応した位置にあり、且つ、前記第２端子金具が下側の前記端子口に対応した位置にあることを示す第２確認表示部は前記第１保持部材の前記操作部によって、前記第１端子金具が上側の前記端子口に対応した位置にあり、且つ、前記第２端子金具が中央の前記端子口に対応した位置にあることを示す第３確認表示部は前記第２保持部材の前記操作部によって夫々被覆されるとともに、前記第１保持部材が前記第１位置にあり、且つ、前記第２保持部材が前記第３位置にあると、前記第２確認表示部が露出する一方、前記第１確認表示部は前記第１保持部材の前記操作部によって、前記第３確認表示部は前記第２保持部材の前記操作部によって夫々被覆され、さらに、前記第１保持部材が前記第１位置にあり、且つ、前記第２保持部材が前記第２位置にあると、前記第３確認表示部が露出する一方、前記第１確認表示部は前記第１保持部材の前記操作部によって、前記第２確認表示部は前記第２保持部材の前記操作部によって夫々被覆されることを特徴とする。 In order to achieve the above object, the present invention provides a circuit breaker having a main body case and three terminal ports, into which conductive bars can be inserted and connected, arranged in parallel in the vertical direction, and a first holding member having an operating portion located outside the main body case and a holding portion connected to the operating portion and located inside the main body case to hold a first terminal metal fitting, the first terminal metal fitting being attached to the lower side of the first holding member so as to be slidable in the vertical direction between a first position where the first terminal metal fitting is located corresponding to the upper terminal port and a second position where the first terminal metal fitting is located corresponding to the central terminal port, the second retaining member having an operating portion positioned at a central terminal port and a retaining portion connected to the operating portion and positioned within the main body case for holding a second terminal fitting, the second retaining member being slidable in the vertical direction between the second position where the second terminal fitting is at a position corresponding to the central terminal port and a third position where the second terminal fitting is at a position corresponding to the lower terminal port, the operating portion of the first retaining member covering at least a portion of the upper terminal port while sliding between the first position and the second position, and the operating portion of the second retaining member covering at least a portion of the central terminal port while sliding between the second position and the third position.
The invention of claim 2 is the invention of claim 1, wherein three confirmation indicators indicating the positions of both terminal fittings are provided within the sliding range of both holding members on the surface of the main body case, and when the first holding member is in the second position and the second holding member is in the third position, a first confirmation indicator indicating that the first terminal fitting is in a position corresponding to the central terminal port and that the second terminal fitting is in a position corresponding to the lower terminal port is exposed, while a second confirmation indicator indicating that the first terminal fitting is in a position corresponding to the upper terminal port and that the second terminal fitting is in a position corresponding to the lower terminal port is exposed by the operation portion of the first holding member. A third confirmation indicator portion, which indicates that the second terminal fitting is in a position corresponding to the central terminal port, is covered by the operation portion of the second holding member, and when the first holding member is in the first position and the second holding member is in the third position, the second confirmation indicator portion is exposed, while the first confirmation indicator portion is covered by the operation portion of the first holding member and the third confirmation indicator portion is covered by the operation portion of the second holding member, and further, when the first holding member is in the first position and the second holding member is in the second position, the third confirmation indicator portion is exposed, while the first confirmation indicator portion is covered by the operation portion of the first holding member and the second confirmation indicator portion is covered by the operation portion of the second holding member.

本発明によれば、本体ケースに、本体ケース外に位置する操作部と、該操作部に連結され、本体ケース内に位置して端子金具を保持する保持部とを備えた保持部材を上下方向へスライド可能に取り付けており、本体ケース外からの操作によって２つの保持部材をスライドさせるだけで端子金具の位置を調整可能としている。したがって、従来よりも端子金具の位置調整を容易に行うことができる。
また、第１保持部材の操作部は、第１位置と第２位置との間でのスライド中に上側の端子口の少なくとも一部を被覆し、第２保持部材の操作部は、第２位置と第３位置との間でのスライド中に中央の端子口の少なくとも一部を被覆するようになっている。すなわち、各保持部材が適切な位置にないと、上側の端子口や下側の端子口への導電バーの差し込みは阻止される。したがって、端子金具が適位置にないにも拘わらず、該端子金具に導電バーを無理矢理接続させることで端子金具や導電バーに変形や破損が生じてしまうというような事態を防止することができる。
さらに、請求項２に記載の発明によれば、本体ケース表面における両保持部材のスライド範囲内に、両端子金具の位置を示す３つの確認表示部が設けられており、第１保持部材及び第２保持部材の位置に応じて露出する確認表示部及び各保持部材の操作部により被覆される確認表示部が夫々異なるようにするとともに、露出している確認表示部に、現時点での端子金具の位置が示されているようにした。したがって、現時点での端子金具の位置を容易に把握することができ、分電盤内への設置時等において各種作業を一層容易に行うことができる。 According to the present invention, a holding member having an operating portion located outside the main case and a holding portion connected to the operating portion and located inside the main case for holding the terminal fittings is attached to the main case so as to be slidable in the vertical direction, and the position of the terminal fittings can be adjusted simply by sliding the two holding members by operating from outside the main case. Therefore, the position of the terminal fittings can be adjusted more easily than in the past.
The operating portion of the first holding member covers at least a part of the upper terminal port while sliding between the first position and the second position, and the operating portion of the second holding member covers at least a part of the central terminal port while sliding between the second position and the third position. In other words, if the holding members are not in the appropriate positions, the conductive bar cannot be inserted into the upper terminal port or the lower terminal port. This makes it possible to prevent a situation in which the terminal metal fittings or the conductive bar are deformed or damaged by forcibly connecting the conductive bar to the terminal metal fittings when the terminal metal fittings are not in the appropriate positions.
According to the invention described in claim 2, three indicators indicating the positions of the terminal fittings are provided within the sliding range of the two holding members on the surface of the main body case, and the indicators exposed according to the positions of the first and second holding members and the indicators covered by the operating parts of each holding member are different, and the exposed indicators indicate the current positions of the terminal fittings. Therefore, the current positions of the terminal fittings can be easily grasped, and various operations such as installation in a distribution board can be performed more easily.

回路遮断器を示した斜視説明図である。FIG. 2 is a perspective view illustrating a circuit breaker. 保持部材が取り外された状態にある回路遮断器を示した斜視説明図である。FIG. 2 is an explanatory perspective view showing the circuit breaker with the holding member removed; 本体ケースの後部内面を示した斜視説明図であり、（ａ）は右内面を、（ｂ）は左内面を夫々示している。5A and 5B are explanatory perspective views showing the inner surface of the rear part of the main body case, in which FIG. 5A shows the right inner surface and FIG. 組み立て状態にある保持部材を示した斜視説明図であり、（ａ）は上側から、（ｂ）は下側から夫々示している。5A and 5B are perspective explanatory views showing the holding member in an assembled state, in which FIG. 5A shows the holding member from above and FIG. 分解状態にある保持部材を示した斜視説明図である。FIG. 4 is a perspective view showing the holding member in a disassembled state. 本体ケースの後面を示した説明図であり、（ａ）は第１保持部材が第１位置に、第２保持部材が第３位置に夫々位置している状態を、（ｂ）は第１保持部材が第１位置に、第２保持部材が第２位置に夫々位置している状態を、（ｃ）は第１保持部材が第２位置に、第２保持部材が第３位置に夫々位置している状態を、（ｄ）は第２保持部材が適位置にない状態を夫々示している。1A and 1B are explanatory diagrams showing the rear surface of the main body case, in which (a) shows the first retaining member in the first position and the second retaining member in the third position, (b) shows the first retaining member in the first position and the second retaining member in the second position, (c) shows the first retaining member in the second position and the second retaining member in the third position, and (d) shows the second retaining member in an incorrect position.

以下、本発明の一実施形態となる回路遮断器について、図面にもとづき詳細に説明する。 Below, a circuit breaker according to one embodiment of the present invention will be described in detail with reference to the drawings.

図１は、回路遮断器１を示した斜視説明図である。図２は、保持部材１１Ａ、１１Ｂが取り外された状態にある回路遮断器１を示した斜視説明図である。図３は、本体ケース２の後部内面を示した斜視説明図であり、（ａ）は右内面を、（ｂ）は左内面を夫々示している。図４は、組み立て状態にある保持部材１１Ａ（１１Ｂ）を示した斜視説明図であり、（ａ）は上側から、（ｂ）は下側から夫々示している。図５は、分解状態にある保持部材１１Ａ（１１Ｂ）を示した斜視説明図である。図６は、本体ケース２の後面を示した説明図であり、（ａ）は保持部材１１Ａが第１位置に、保持部材１１Ｂが第３位置に夫々位置して確認表示部２１Ｂが露出している状態を、（ｂ）は保持部材１１Ａが第１位置に、保持部材１１Ｂが第２位置に夫々位置して確認表示部２１Ｃが露出している状態を、（ｃ）は保持部材１１Ａが第２位置に、保持部材１１Ｂが第３位置に夫々位置して確認表示部２１Ａが露出している状態を、（ｄ）は保持部材１１Ｂが適位置にない状態を夫々示している。 Figure 1 is an explanatory perspective view of the circuit breaker 1. Figure 2 is an explanatory perspective view of the circuit breaker 1 with the retaining members 11A and 11B removed. Figure 3 is an explanatory perspective view of the inner rear surface of the main body case 2, with (a) showing the right inner surface and (b) showing the left inner surface. Figure 4 is an explanatory perspective view of the retaining member 11A (11B) in an assembled state, with (a) showing it from above and (b) showing it from below. Figure 5 is an explanatory perspective view of the retaining member 11A (11B) in a disassembled state. FIG. 6 is an explanatory diagram showing the rear surface of the main body case 2, where (a) shows the state in which the holding member 11A is in the first position and the holding member 11B is in the third position, exposing the confirmation display portion 21B, (b) shows the state in which the holding member 11A is in the first position and the holding member 11B is in the second position, exposing the confirmation display portion 21C, (c) shows the state in which the holding member 11A is in the second position and the holding member 11B is in the third position, exposing the confirmation display portion 21A, and (d) shows the state in which the holding member 11B is not in the proper position.

単相三線式電路に使用される回路遮断器１は、複数のケース部材を組み立ててなる合成樹脂製の本体ケース２を有しており、該本体ケース２の後部には電源側端子４が、前部には負荷側端子（図示せず）が夫々備えられている。また、本体ケース２の上面には、ハンドル５が前後方向へ回動操作可能に設けられており、該ハンドル５を回動操作することで、本体ケース２内に組み込まれている図示しない開閉機構が作動し、電源側端子４と負荷側端子３とを電気的につなぐ電路が接続／開放されるようになっている。 The circuit breaker 1 used in a single-phase three-wire circuit has a synthetic resin main case 2 assembled from multiple case members, with a power supply terminal 4 at the rear of the main case 2 and a load terminal (not shown) at the front. A handle 5 is provided on the top surface of the main case 2 so that it can be rotated back and forth. Rotating the handle 5 activates an opening/closing mechanism (not shown) built into the main case 2, connecting/disconnecting the electrical circuit electrically connecting the power supply terminal 4 and the load terminal 3.

さらに、電源側端子４は、上下方向へ並設されたプラグイン方式の３つの端子口Ｐ１、Ｐ２、Ｐ３を備えてなり、各端子口Ｐ１～Ｐ３は、本体ケース２を左右方向に貫通するコ字状に切り欠かれて形成されている。そして、各端子口Ｐ１～Ｐ３には、分電盤内等に配設される導電バー（図示せず）を挿入接続可能となっている。また、電源側端子４では、上側の端子口Ｐ１が中性端子、中央の端子口Ｐ２及び下側の端子口Ｐ３が夫々電圧端子とされており、入力電圧が１００Ｖである場合には、上側の端子口Ｐ１と中央の端子口Ｐ２又は下側の端子口Ｐ３とに導電バーが接続される一方、入力電圧が２００Ｖである場合には、中央の端子口Ｐ２と下側の端子口Ｐ３とに導電バーが接続されるようになっている。 The power supply side terminal 4 further comprises three plug-in type terminals P1, P2, P3 arranged in a vertical direction, and each of the terminals P1 to P3 is formed by cutting out a U-shape that penetrates the main body case 2 in the horizontal direction. A conductive bar (not shown) arranged in a distribution board or the like can be inserted and connected to each of the terminals P1 to P3. In the power supply side terminal 4, the upper terminal P1 is a neutral terminal, and the central terminal P2 and the lower terminal P3 are voltage terminals, respectively. When the input voltage is 100V, the conductive bar is connected to the upper terminal P1 and the central terminal P2 or the lower terminal P3, while when the input voltage is 200V, the conductive bar is connected to the central terminal P2 and the lower terminal P3.

ここで、本発明の要部となる電源側端子４側における端子金具１０Ａ、１０Ｂのスライド構造について説明する。
本体ケース２における後端部（電源側端子４側の端部）には、本体ケース２に対して上下方向へスライドする２つの保持部材１１Ａ、１１Ｂが取り付けられている。また、保持部材１１Ａには端子金具１０Ａが、保持部材１１Ｂには端子金具１０Ｂが夫々保持されており、両端子金具１０Ａ、１０Ｂは、本体ケース２内に位置している。なお、端子金具１０Ａ、１０Ｂは、従来周知のもの（従来のプラグイン方式の端子で使用されるものと同じもの）で、金属板を後方へ開口する側面視略Ｃ字状に湾曲させて成形されてなる。 Here, a sliding structure of the terminal fittings 10A, 10B on the power supply terminal 4 side, which is a main part of the present invention, will be described.
Two holding members 11A, 11B that slide up and down relative to the main case 2 are attached to the rear end of the main case 2 (the end on the power supply terminal 4 side). Terminal fitting 10A is held by holding member 11A, and terminal fitting 10B is held by holding member 11B, with both terminal fittings 10A, 10B located inside the main case 2. Terminal fittings 10A, 10B are conventionally known (the same as those used in conventional plug-in type terminals) and are formed by bending a metal plate into a roughly C-shape when viewed from the side, with the opening facing rearward.

保持部材１１Ａ、１１Ｂは、作業者が操作可能な操作部材１２と、操作部材１２に連結されているとともに、端子金具１０Ａ、１０Ｂを保持する保持台１３とを備えてなる。操作部材１２は、対向する左右両側面と、該両側面の後端同士を連結する後面とを有する上面視門形に形成されてなり、各側面の内側（対向する面側）の前部には、保持台１３を支持するための支持突起１４が夫々突設されている。一方、保持台１３は、開口が後方を向く姿勢で端子金具１０Ａ、１０Ｂを保持可能な保持部１５と、保持部１５から上方へ突設された係合部１６とを備えてなる。係合部１６は、前後方向が厚み方向となり、左右長さが操作部材１２の左右両側面間の距離と同じとされた板状に形成され、該係合部１６の左右両側縁で上寄りとなる箇所には、上下幅が支持突起１４と略同じとされた切り欠き１７、１７が設けられている。また、係合部１６の後面における左上隅には、保持部材１１Ａ、１１Ｂを後述する第１位置等で保持するための保持突起１８が後方へ突設されている。 The holding members 11A and 11B are each provided with an operating member 12 that can be operated by an operator, and a holding base 13 that is connected to the operating member 12 and holds the terminal fittings 10A and 10B. The operating member 12 is formed in a gate shape when viewed from above, with opposing left and right side surfaces and a rear surface that connects the rear ends of the two side surfaces, and a support protrusion 14 for supporting the holding base 13 is provided on the front part of the inside (opposing surface side) of each side surface. Meanwhile, the holding base 13 is provided with a holding portion 15 that can hold the terminal fittings 10A and 10B with the opening facing rearward, and an engaging portion 16 that protrudes upward from the holding portion 15. The engaging portion 16 is formed in a plate shape with the thickness direction being the front-rear direction and the left-right length being the same as the distance between the left and right side surfaces of the operating member 12, and notches 17, 17 with a vertical width approximately the same as the supporting protrusion 14 are provided at the upper left and right edges of the engaging portion 16. In addition, a retaining protrusion 18 protrudes rearward from the upper left corner of the rear surface of the engaging portion 16 to retain the retaining members 11A and 11B in a first position, which will be described later.

一方、本体ケース２の左右両側面における後端部は、前側に比べて左右方向で内側に凹んでおり、当該凹んだ箇所における本体ケース２の左右幅は、操作部材１２の左右両側面間の距離（係合部１６の左右長さでもある）と略同じとなっている。そして、その凹んだ箇所に、端子口Ｐ１～Ｐ３が設けられているとともに、操作部材１２、１２が取り付けられている（つまり、操作部材１２、１２の取付部とされている）。また、本体ケース２の取付部内における左右両側面には、上下方向へ延びるスリット１９が夫々開設されている。各スリット１９の前後幅は、係合部１６の前後幅と略同じとされている。また、左側のスリット１９には、保持突起１８が係止可能な３つの係止凹部２０、２０・・が設けられている。さらに、各スリット１９は、本体ケース２の取付部内における後面から、操作部材１２における後面から支持突起１４、１４までの前後長さと同じだけ前方となる位置に設けられている。 On the other hand, the rear end portions of the left and right side surfaces of the main body case 2 are recessed inward in the left-right direction compared to the front side, and the left-right width of the main body case 2 at the recessed portion is approximately the same as the distance between the left and right side surfaces of the operating member 12 (which is also the left-right length of the engagement portion 16). The terminal ports P1 to P3 are provided in the recessed portion, and the operating members 12, 12 are attached (i.e., it is used as the mounting portion of the operating members 12, 12). In addition, slits 19 extending in the vertical direction are opened on both left and right side surfaces in the mounting portion of the main body case 2. The front-to-rear width of each slit 19 is approximately the same as the front-to-rear width of the engagement portion 16. In addition, the left slit 19 is provided with three locking recesses 20, 20... in which the holding protrusion 18 can be locked. Furthermore, each slit 19 is provided at a position forward from the rear surface of the mounting portion of the main body case 2 by the same front-to-rear length from the rear surface of the operating member 12 to the support protrusions 14, 14.

なお、本体ケース２の内面で、各スリット１９、１９の前側に隣接した位置には、左右方向で内側へ突出する案内壁２２が夫々上下方向に延設されている。そして、該案内壁２２、２２に、本体ケース２への取付状態にある係合部１６の前面が当接することで、保持部材１１Ａ、１１Ｂの上下方向へのスライドを案内可能となっている。 In addition, on the inner surface of the main body case 2, adjacent to the front side of each slit 19, 19, guide walls 22 that protrude inward in the left-right direction are provided extending in the up-down direction. The front surface of the engagement portion 16 attached to the main body case 2 abuts against the guide walls 22, 22, making it possible to guide the sliding of the holding members 11A, 11B in the up-down direction.

加えて、本体ケース２の取付部内における後面で、端子口Ｐ１の上側となる箇所には第１の確認表示部２１Ａが設けられている。また、本体ケース２の取付部内における後面で、端子口Ｐ２の上側であり、且つ、端子口Ｐ１の下側となる箇所には第２の確認表示部２１Ｂが設けられている。さらに、本体ケース２の取付部内における後面で、端子口Ｐ３の上側であり、且つ、端子口Ｐ２の下側となる箇所には第３の確認表示部２１Ｃが設けられており、各確認表示部２１Ａ、２１Ｂ、２１Ｃには、自身が露出している際の端子金具１０Ａ、１０Ｂの位置が夫々示されている。 In addition, a first confirmation display 21A is provided on the rear surface of the mounting portion of the main case 2, above terminal port P1. A second confirmation display 21B is provided on the rear surface of the mounting portion of the main case 2, above terminal port P2 and below terminal port P1. A third confirmation display 21C is provided on the rear surface of the mounting portion of the main case 2, above terminal port P3 and below terminal port P2, and each of the confirmation display 21A, 21B, and 21C indicates the position of the terminal fittings 10A and 10B when they are exposed.

そして、上述したような保持部材１１Ａ、１１Ｂの組み立て及び本体ケース２への取り付けにあたっては、保持部材１１Ａの保持台１３に端子金具１０Ａを、保持部材１１Ｂの保持台１３に端子金具１０Ｂを夫々保持させた上で、まず端子金具１０Ｂを保持する保持台１３について、端子金具１０Ｂを後側へ向けた姿勢で係合部１６の左右両側縁を、本体ケース２の内側からスリット１９、１９に嵌合させる。それから、操作部材１２の左右両側面が本体ケース２の取付部内における左右両側面の外側に夫々位置するように、本体ケース２の後側から操作部材１２を組み付け、スリット１９、１９内に位置している切り欠き１７、１７に支持突起１４、１４を係合させれば、操作部材１２と保持台１３とが連結され、保持部材１１Ｂの組み立て及び取り付けは完了となる。次に端子金具１０Ａを保持する保持台１３について、端子金具１０Ｂを保持する保持台１３同様に、係合部１６の左右両側縁を本体ケース２の内側からスリット１９、１９に嵌合させる。このとき、端子金具１０Ａを保持する保持台１３は、保持部材１１Ｂよりも上側に位置させる。それから、上記同様に操作部材１２を組み付けて、切り欠き１７、１７に支持突起１４、１４を係合させれば、操作部材１２と保持台１３とが連結され、保持部材１１Ａの組み立て及び取り付けも完了となる。なお、上述の如くして組み立て及び取り付けられた保持部材１１Ａ、１１Ｂにおいて、端子金具１０Ａ、１０Ｂは、各操作部材１２（特に操作部材１２の後面）よりも下方へ突出した位置にある。 When assembling the holding members 11A and 11B and attaching them to the main case 2 as described above, the terminal metal fitting 10A is held by the holding base 13 of the holding member 11A, and the terminal metal fitting 10B is held by the holding base 13 of the holding member 11B, and then, for the holding base 13 that holds the terminal metal fitting 10B, the left and right side edges of the engagement portion 16 are fitted into the slits 19, 19 from the inside of the main case 2 with the terminal metal fitting 10B facing rearward. Then, the operating member 12 is assembled from the rear side of the main case 2 so that the left and right side surfaces of the operating member 12 are positioned outside the left and right side surfaces within the mounting portion of the main case 2, respectively, and the support protrusions 14, 14 are engaged with the notches 17, 17 located within the slits 19, 19, connecting the operating member 12 and the holding base 13, completing the assembly and attachment of the holding member 11B. Next, for the holder 13 that holds the terminal metal fitting 10A, the left and right side edges of the engagement portion 16 are fitted into the slits 19, 19 from inside the main case 2, in the same manner as for the holder 13 that holds the terminal metal fitting 10B. At this time, the holder 13 that holds the terminal metal fitting 10A is positioned above the holding member 11B. Then, as in the above, the operating member 12 is assembled, and the support protrusions 14, 14 are engaged with the notches 17, 17, connecting the operating member 12 and the holder 13, and the assembly and installation of the holding member 11A is also completed. In the holding members 11A, 11B assembled and installed as described above, the terminal metal fittings 10A, 10B are in a position that protrudes downward from each operating member 12 (especially the rear surface of the operating member 12).

以上のようにして本体ケース２に取り付けられた保持部材１１Ａ、１１Ｂは、スリット１９、１９及び案内壁２２、２２に係合部１６が案内される格好で、取付部内を上下方向へスライドする。また、保持部材１１Ａは、保持突起１８が係止凹部２０に係止することにより、操作部材１２が確認表示部２１Ａを後側から被覆するとともに、上側の端子口Ｐ１の前側に端子金具１０Ａが配される第１位置と、操作部材１２が確認表示部２１Ｂを後側から被覆するとともに中央の端子口Ｐ２の前側に端子金具１０Ａが配される第２位置とで位置決め可能となっている。一方、保持部材１１Ｂは、保持突起１８が係止凹部２０に係止することにより、操作部材１２が確認表示部２１Ｂを後側から被覆するとともに中央の端子口Ｐ２の前側に端子金具１０Ｂが配される第２位置（上記第２位置と同位置である）と、操作部材１２が確認表示部２１Ｃを後側から被覆するとともに下側の端子口Ｐ３の前側に端子金具１０Ｂが配される第３位置とで位置決め可能となっている。 The holding members 11A, 11B attached to the main case 2 in the above manner slide vertically within the attachment portion with the engagement portion 16 guided by the slits 19, 19 and the guide walls 22, 22. Furthermore, by engaging the holding protrusions 18 with the locking recesses 20, the holding member 11A can be positioned at a first position where the operating member 12 covers the confirmation display portion 21A from the rear and the terminal metal fitting 10A is disposed in front of the upper terminal port P1, and at a second position where the operating member 12 covers the confirmation display portion 21B from the rear and the terminal metal fitting 10A is disposed in front of the central terminal port P2. Meanwhile, the retaining member 11B can be positioned at a second position (same position as the second position) where the operating member 12 covers the confirmation display portion 21B from the rear and the terminal metal 10B is arranged in front of the central terminal port P2, by the retaining protrusion 18 engaging with the locking recess 20, and at a third position where the operating member 12 covers the confirmation display portion 21C from the rear and the terminal metal 10B is arranged in front of the lower terminal port P3.

ここで、端子金具１０Ａ、１０Ｂの位置調整について具体的に説明すると、入力電圧が２００Ｖである場合には、中央の端子口Ｐ２と下側の端子口Ｐ３とに端子金具１０Ａ、１０Ｂが配されている必要がある。そこで、保持部材１１Ａ、１１Ｂをスライドさせて、保持部材１１Ａを第２位置に、保持部材１１Ｂを第３位置に夫々位置させればよい。すると、端子金具１０Ａが端子口Ｐ２の前側に、端子金具１０Ｂが端子口Ｐ３の前側に夫々配され、導電バーの端子口Ｐ２及び端子口Ｐ３への差し込みに伴い導電バーと回路遮断器１との電気的な接続が可能となる。また、この状態にあっては確認表示部２１Ａのみが露出しており（図６（ｃ））、現時点での回路遮断器１の電源側端子４の状態（どの端子口に端子金具が配されているかであって、ここでは入力電圧が２００Ｖであり、２つの電圧端子に導電バーを接続する旨）を作業者等に報知している。 Here, the position adjustment of the terminal fittings 10A and 10B will be specifically explained. When the input voltage is 200V, the terminal fittings 10A and 10B must be arranged in the central terminal port P2 and the lower terminal port P3. Then, the holding members 11A and 11B are slid to position the holding member 11A in the second position and the holding member 11B in the third position. Then, the terminal fitting 10A is arranged in front of the terminal port P2, and the terminal fitting 10B is arranged in front of the terminal port P3, respectively, and the conductive bar can be electrically connected to the circuit breaker 1 by inserting the conductive bar into the terminal port P2 and the terminal port P3. In this state, only the confirmation display portion 21A is exposed (FIG. 6(c)), and the current state of the power supply side terminal 4 of the circuit breaker 1 (which terminal port the terminal fitting is arranged in, in this case the input voltage is 200V, and the conductive bar is to be connected to the two voltage terminals) is notified to the operator.

また、入力電圧が１００Ｖであり、上側の端子口Ｐ１と下側の端子口Ｐ３とに導電バーを差し込みたい場合には、保持部材１１Ａ、１１Ｂをスライドさせて、保持部材１１Ａを第１位置に、保持部材１１Ｂを第３位置に夫々位置させればよい。すると、端子金具１０Ａが端子口Ｐ１の前側に、端子金具１０Ｂが端子口Ｐ３の前側に夫々配され、導電バーの端子口Ｐ１及び端子口Ｐ３への差し込みに伴い導電バーと回路遮断器１との電気的な接続が可能となる。また、この状態にあっては確認表示部２１Ｂのみが露出しており（図６（ａ））、現時点での回路遮断器１の電源側端子４の状態（ここでは入力電圧が１００Ｖであり、中性端子と下側の電圧端子とに導電バーを接続する旨）を作業者等に報知している。 If the input voltage is 100V and you want to insert a conductive bar into the upper terminal port P1 and the lower terminal port P3, slide the holding members 11A and 11B to place the holding members 11A in the first position and the holding members 11B in the third position. Then, the terminal fittings 10A and 10B are placed in front of the terminal port P1 and the terminal fittings 10B in front of the terminal port P3, respectively, and the conductive bar can be electrically connected to the circuit breaker 1 by inserting the conductive bar into the terminal port P1 and the terminal port P3. In this state, only the confirmation display section 21B is exposed (FIG. 6(a)), and the operator is notified of the current state of the power supply side terminal 4 of the circuit breaker 1 (here, the input voltage is 100V and the conductive bar is to be connected to the neutral terminal and the lower voltage terminal).

また、入力電圧が１００Ｖであり、上側の端子口Ｐ１と中央の端子口Ｐ２とに導電バーを差し込みたい場合には、保持部材１１Ａ、１１Ｂをスライドさせて、保持部材１１Ａを第１位置に、保持部材１１Ｂを第２位置に夫々位置させればよい。すると、端子金具１０Ａが端子口Ｐ１の前側に、端子金具１０Ｂが端子口Ｐ２の前側に夫々配され、導電バーの端子口Ｐ１及び端子口Ｐ２への差し込みに伴い導電バーと回路遮断器１との電気的な接続が可能となる。また、この状態にあっては確認表示部２１Ｃのみが露出しており（図６（ｂ））、現時点での回路遮断器１の電源側端子４の状態（ここでは入力電圧が１００Ｖであり、中性端子と中央の電圧端子とに導電バーを接続する旨）を作業者等に報知している。 If the input voltage is 100V and you want to insert a conductive bar into the upper terminal port P1 and the central terminal port P2, slide the holding members 11A and 11B to place the holding members 11A in the first position and the holding members 11B in the second position. Then, the terminal fittings 10A and 10B are placed in front of the terminal port P1 and the terminal fittings 10B in front of the terminal port P2, respectively, and the conductive bar can be electrically connected to the circuit breaker 1 by inserting the conductive bar into the terminal port P1 and the terminal port P2. In this state, only the confirmation display section 21C is exposed (FIG. 6(b)), and the operator is notified of the current state of the power supply side terminal 4 of the circuit breaker 1 (here, the input voltage is 100V and the conductive bar is to be connected to the neutral terminal and the central voltage terminal).

なお、保持部材１１Ａ、１１Ｂの操作部材１２は、各位置間でのスライド中に上側の端子口Ｐ１や中央の端子口Ｐ２を被覆する。たとえば保持部材１１Ｂが第２位置にも第３位置にもない状況では、保持部材１１Ｂの操作部材１２が端子口Ｐ２を被覆する（図６（ｄ））。このように保持部材１１Ａ、１１Ｂが適切な位置にないと、端子口Ｐ１、Ｐ２が保持部材１１Ａ、１１Ｂの操作部材１２により被覆され、それらの端子口Ｐ１、Ｐ２への導電バーの差し込みが阻止されるようになっている。したがって、端子金具１０Ａ、１０Ｂが適位置にないにも拘わらず、該端子金具１０Ａ、１０Ｂに導電バーを無理矢理接続させることで端子金具１０Ａ、１０Ｂや導電バーに変形や破損が生じてしまうというような事態を防止することができる。 The operating members 12 of the holding members 11A and 11B cover the upper terminal port P1 and the central terminal port P2 while sliding between the respective positions. For example, when the holding member 11B is not in the second or third position, the operating member 12 of the holding member 11B covers the terminal port P2 (FIG. 6(d)). In this way, when the holding members 11A and 11B are not in the appropriate positions, the terminal ports P1 and P2 are covered by the operating members 12 of the holding members 11A and 11B, and the insertion of the conductive bar into the terminal ports P1 and P2 is prevented. This prevents a situation in which the terminal fittings 10A and 10B or the conductive bar are deformed or damaged by forcibly connecting the conductive bar to the terminal fittings 10A and 10B even though the terminal fittings 10A and 10B are not in the appropriate positions.

以上のような構成を有する回路遮断器１によれば、本体ケース２に、本体ケース２外に位置する操作部材１２、及び操作部材１２に連結され、本体ケース２内に位置して端子金具１０Ａを保持する保持台１３を備えた保持部材１１Ａが第１位置と第２位置との間で上下方向へスライド可能に取り付けられているとともに、該保持部材１１Ａの下側に、本体ケース２外に位置する操作部材１２、及び操作部材１２に連結され、本体ケース２内に位置して端子金具１０Ｂを保持する保持台１３を備えた保持部材１１Ｂが第２位置と第３位置との間で上下方向へスライド可能に取り付けられており、本体ケース２外からの操作によって２つの保持部材１１Ａ、１１Ｂを夫々上下方向へスライドさせるだけで端子金具１０Ａ、１０Ｂの位置を調整可能としている。したがって、従来よりも端子金具１０Ａ、１０Ｂの位置調整を容易に行うことができる。 According to the circuit breaker 1 having the above-mentioned configuration, the operating member 12 located outside the main case 2 and the holding member 11A equipped with the holding base 13 connected to the operating member 12 and located inside the main case 2 to hold the terminal metal fitting 10A are attached to the main case 2 so as to be slidable in the vertical direction between the first position and the second position, and the operating member 12 located outside the main case 2 and the holding member 11B connected to the operating member 12 and equipped with the holding base 13 located inside the main case 2 to hold the terminal metal fitting 10B are attached to the lower side of the holding member 11A so as to be slidable in the vertical direction between the second position and the third position, and the positions of the terminal metal fittings 10A and 10B can be adjusted by simply sliding the two holding members 11A and 11B in the vertical direction by operating from outside the main case 2. Therefore, the positions of the terminal metal fittings 10A and 10B can be adjusted more easily than before.

また、本体ケース２の表面における保持部材１１Ａ、１１Ｂのスライド範囲内に、端子金具１０Ａ、１０Ｂの位置を示す３つの確認表示部２１Ａ、２１Ｂ、２１Ｃが設けられており、保持部材１１Ａ、１１Ｂの位置に応じて露出する確認表示部及び各操作部材１２、１２により被覆される確認表示部が夫々異なるようにするとともに、露出している確認表示部に、現時点での端子金具１０Ａ、１０Ｂの位置が示されているようにした。したがって、現時点での端子金具１０Ａ、１０Ｂの位置を容易に把握することができ、分電盤内への設置時等において各種作業を一層容易に行うことができる。 In addition, within the sliding range of the holding members 11A, 11B on the surface of the main body case 2, three confirmation display parts 21A, 21B, 21C are provided to indicate the positions of the terminal fittings 10A, 10B, and the confirmation display parts exposed according to the positions of the holding members 11A, 11B and the confirmation display parts covered by each operating member 12, 12 are different, and the exposed confirmation display parts indicate the current positions of the terminal fittings 10A, 10B. Therefore, the current positions of the terminal fittings 10A, 10B can be easily grasped, making it easier to carry out various tasks such as installation in a distribution board.

さらに、保持部材１１Ａの操作部材１２は、第１位置と第２位置との間でのスライド中に上側の端子口Ｐ１を被覆し、保持部材１１Ｂの操作部材１２は、第２位置と第３位置との間でのスライド中に中央の端子口Ｐ２を被覆するようになっている。すなわち、各保持部材１１Ａ、１１Ｂが適切な位置にないと、上側の端子口Ｐ１や中央の端子口Ｐ２への導電バーの差し込みは阻止される。したがって、端子金具１０Ａ、１０Ｂが適位置にないにも拘わらず、該端子金具１０Ａ、１０Ｂに導電バーを無理矢理接続させることで端子金具１０Ａ、１０Ｂや導電バーに変形や破損が生じてしまうというような事態を防止することができる。 Furthermore, the operating member 12 of the holding member 11A covers the upper terminal port P1 while sliding between the first and second positions, and the operating member 12 of the holding member 11B covers the central terminal port P2 while sliding between the second and third positions. In other words, if the holding members 11A and 11B are not in the appropriate positions, the insertion of the conductive bar into the upper terminal port P1 or the central terminal port P2 is prevented. This makes it possible to prevent a situation in which the terminal metal fittings 10A and 10B or the conductive bar are deformed or damaged by forcibly connecting the conductive bar to the terminal metal fittings 10A and 10B even though the terminal metal fittings 10A and 10B are not in the appropriate positions.

なお、本発明に係る回路遮断器は、上記実施形態の態様に何ら限定されるものではなく、回路遮断器の全体的な構成は勿論、端子金具のスライド構造に係る構成等についても必要に応じて適宜変更することができる。 The circuit breaker according to the present invention is not limited to the above embodiment, and the overall configuration of the circuit breaker as well as the configuration related to the sliding structure of the terminal fittings can be modified as necessary.

たとえば、上記実施形態では、本体ケースの後面に確認表示部を設けているが、保持部材１１Ａ、１１Ｂのスライド範囲内であれば、本体ケースの側面に確認表示部を設けても何ら問題はない。
また、保持部材の形状において、操作部材を本体ケースの側面しか被覆しないような板状に形成する等してもよく、保持部材の形状や構造等についても適宜設計変更可能である。なお、そのような板状に形成された操作部材であっても、第１位置と第２位置との間でのスライド中や、第２位置と第３位置との間でのスライド中に、上側の端子口や中央の端子口の夫々少なくとも一部（たとえば各端子口における操作部材が位置する側面の側のみ等）を被覆するように構成することで、各保持部材が適切な位置にない状況において、導電バーの端子口への無理な差し込みを防止可能という効果を奏することができる。 For example, in the above embodiment, the confirmation display portion is provided on the rear surface of the main body case, but there is no problem if the confirmation display portion is provided on the side surface of the main body case as long as it is within the sliding range of the holding members 11A, 11B.
In addition, the shape of the holding member may be such that the operating member is formed in a plate shape that covers only the side surface of the main body case, and the shape and structure of the holding member can be appropriately modified. Even with such a plate-shaped operating member, by configuring it to cover at least a part of each of the upper terminal port and the central terminal port (for example, only the side surface of each terminal port where the operating member is located) during sliding between the first position and the second position or between the second position and the third position, it is possible to achieve the effect of preventing the conductive bar from being forcibly inserted into the terminal port when each holding member is not in an appropriate position.

さらに、上記実施形態では、保持部材の位置決めに係る構成として、保持台に保持突起を、スリットに係止凹部を夫々設けているが、たとえば操作部材に係止爪を設ける等しても何ら問題はなく、どのような位置決め構造を設けるかについても適宜設計変更可能である。
加えて、上記実施形態では、上側の端子口Ｐ１を中性端子としているが、中央の端子口Ｐ２を中性端子としてもよく、どの端子口を中性端子とし、どの端子口を電圧端子とするかについては適宜変更可能である。 Furthermore, in the above embodiment, as a configuration for positioning the holding member, a holding protrusion is provided on the holding base and a locking recess is provided in the slit, but there is no problem if, for example, a locking claw is provided on the operating member, and the design of the positioning structure can be appropriately modified.
In addition, in the above embodiment, the upper terminal port P1 is the neutral terminal, but the central terminal port P2 may also be the neutral terminal, and which terminal port is the neutral terminal and which terminal port is the voltage terminal can be changed as appropriate.

１・・回路遮断器、２・・本体ケース、４・・電源側端子、１０Ａ・・端子金具（第１端子金具）、１０Ｂ・・端子金具（第２端子金具）、１１Ａ・・保持部材（第１保持部材）、１１Ｂ・・保持部材（第２保持部材）、１２・・操作部材（操作部）、１３・・保持台、１５・・保持部、２１Ａ・・確認表示部（第１確認表示部）、２１Ｂ・・確認表示部（第２確認表示部）、２１Ｃ・・確認表示部（第３確認表示部）、Ｐ１・・上側の端子口、Ｐ２・・中央の端子口、Ｐ３・・下側の端子口。 1: Circuit breaker, 2: Main body case, 4: Power supply terminal, 10A: Terminal fitting (first terminal fitting), 10B: Terminal fitting (second terminal fitting), 11A: Holding member (first holding member), 11B: Holding member (second holding member), 12: Operating member (operating section), 13: Holding base, 15: Holding section, 21A: Confirmation display section (first confirmation display section), 21B: Confirmation display section (second confirmation display section), 21C: Confirmation display section (third confirmation display section), P1: Upper terminal port, P2: Central terminal port, P3: Lower terminal port.

Claims

本体ケースに、導電バーを差し込み接続可能な３つの端子口が上下方向に並設されてなる回路遮断器であって、
前記本体ケースに、前記本体ケース外に位置する操作部、及び前記操作部に連結され、前記本体ケース内に位置して第１端子金具を保持する保持部を備えた第１保持部材が、前記第１端子金具が上側の前記端子口に対応した位置にある第１位置と、中央の前記端子口に対応した位置にある第２位置との間で上下方向へスライド可能に取り付けられているとともに、
前記第１保持部材の下側に、前記本体ケース外に位置する操作部、及び前記操作部に連結され、前記本体ケース内に位置して第２端子金具を保持する保持部を備えた第２保持部材が、前記第２端子金具が中央の前記端子口に対応した位置にある前記第２位置と、下側の前記端子口に対応した位置にある第３位置との間で上下方向へスライド可能であり、
前記第１保持部材の前記操作部は、前記第１位置と前記第２位置との間でのスライド中に上側の前記端子口の少なくとも一部を被覆し、前記第２保持部材の前記操作部は、前記第２位置と前記第３位置との間でのスライド中に中央の前記端子口の少なくとも一部を被覆することを特徴とする回路遮断器。 A circuit breaker having three terminal ports arranged vertically in a main body case into which conductive bars can be inserted and connected,
a first holding member including an operating portion located outside the main body case and a holding portion connected to the operating portion and located inside the main body case to hold a first terminal metal fitting; the first holding member is attached to the main body case so as to be slidable in the up-down direction between a first position where the first terminal metal fitting is located at a position corresponding to the upper terminal port and a second position where the first terminal metal fitting is located at a position corresponding to the central terminal port;
a second holding member provided below the first holding member and including an operating portion located outside the main body case and a holding portion connected to the operating portion and located inside the main body case to hold a second terminal metal fitting, the second holding member being slidable in the vertical direction between the second position where the second terminal metal fitting is located corresponding to the central terminal port and a third position where the second terminal metal fitting is located corresponding to the lower terminal port,
A circuit breaker characterized in that the operating portion of the first retaining member covers at least a portion of the upper terminal port while sliding between the first position and the second position, and the operating portion of the second retaining member covers at least a portion of the central terminal port while sliding between the second position and the third position.

前記本体ケース表面における両前記保持部材のスライド範囲内に、両前記端子金具の位置を示す３つの確認表示部が設けられており、
前記第１保持部材が前記第２位置にあり、且つ、前記第２保持部材が前記第３位置にあると、前記第１端子金具が中央の前記端子口に対応した位置にあり、且つ、前記第２端子金具が下側の前記端子口に対応した位置にあることを示す第１確認表示部が露出する一方、前記第１端子金具が上側の前記端子口に対応した位置にあり、且つ、前記第２端子金具が下側の前記端子口に対応した位置にあることを示す第２確認表示部は前記第１保持部材の前記操作部によって、前記第１端子金具が上側の前記端子口に対応した位置にあり、且つ、前記第２端子金具が中央の前記端子口に対応した位置にあることを示す第３確認表示部は前記第２保持部材の前記操作部によって夫々被覆されるとともに、
前記第１保持部材が前記第１位置にあり、且つ、前記第２保持部材が前記第３位置にあると、前記第２確認表示部が露出する一方、前記第１確認表示部は前記第１保持部材の前記操作部によって、前記第３確認表示部は前記第２保持部材の前記操作部によって夫々被覆され、
さらに、前記第１保持部材が前記第１位置にあり、且つ、前記第２保持部材が前記第２位置にあると、前記第３確認表示部が露出する一方、前記第１確認表示部は前記第１保持部材の前記操作部によって、前記第２確認表示部は前記第２保持部材の前記操作部によって夫々被覆されることを特徴とする請求項１に記載の回路遮断器。 three indication portions for indicating the positions of the terminal fittings are provided within the sliding range of the holding members on the surface of the main body case,
When the first holding member is in the second position and the second holding member is in the third position, a first confirmation display portion indicating that the first terminal metal is in a position corresponding to the central terminal port and that the second terminal metal is in a position corresponding to the lower terminal port is exposed, while a second confirmation display portion indicating that the first terminal metal is in a position corresponding to the upper terminal port and that the second terminal metal is in a position corresponding to the lower terminal port is covered by the operation portion of the first holding member, and a third confirmation display portion indicating that the first terminal metal is in a position corresponding to the upper terminal port and that the second terminal metal is in a position corresponding to the central terminal port is covered by the operation portion of the second holding member,
when the first holding member is in the first position and the second holding member is in the third position, the second confirmation indicator is exposed, while the first confirmation indicator is covered by the operation portion of the first holding member and the third confirmation indicator is covered by the operation portion of the second holding member,
2. The circuit breaker according to claim 1, further comprising: when the first retaining member is in the first position and the second retaining member is in the second position, the third confirmation indicator is exposed, while the first confirmation indicator is covered by the operating portion of the first retaining member, and the second confirmation indicator is covered by the operating portion of the second retaining member.