JP5093638B2 - Circuit breaker operation section structure - Google Patents

Description

The present invention relates to an operation part structure of a circuit breaker, and more particularly to a wiring breaker for a residential distribution board.

When the circuit breaker is attached to a predetermined surface, the operation method for turning on and off the circuit breaker is usually that the handle operating part protruding outside the body of the circuit breaker is pushed up with a finger or the like. Or the method of operating so that it may rotate by pulling down is common. For example, Patent Document 1 to Patent Document 3 disclose a safety breaker (JIS C 8370, which is mainly defined in the vicinity of a service entrance of a house, a circuit breaker used as a circuit breaker for a branch circuit, etc. In any case, the circuit breaker is turned on and off by operating the handle operation part in the direction connecting the power supply side terminal and the load side terminal. A method of performing the operation is employed.

In addition, a safety breaker type earth leakage breaker (in JIS C 8371, a leakage breaker for branching of residential distribution boards, which is defined as an earth leakage breaker mainly used in the vicinity of service entrances, etc., for branch circuits) In circuit breakers and agreement type circuit breakers for electric distribution boards, which are often used as circuit breakers for branch circuits of electric distribution boards, which also have agreement dimensions as defined in JIS, As in the case of the safety breaker, there has been a general method in which the handle operating portion protruding outside the body of the circuit breaker is operated to be rotated by being pushed up or down with a finger or the like.

The various circuit breakers as described above are arranged as a circuit breaker for a branch circuit in a distribution board, and arranged in parallel in a direction perpendicular to the direction connecting the power supply side terminal and the load side terminal in the distribution board. Moreover, it is common to arrange the circuit breaker groups arranged side by side in the distribution board so as to face each other in the direction of the power supply side terminal-load side terminal.

Japanese Patent Publication No. 1-445338 Fig. 2 Japanese Patent Laid-Open No. 6-236729 FIG. JP-A-9-63450 FIG.

When checking the on / off state of a plurality of circuit breakers arranged in parallel on the distribution board, whether the handle operating part of the circuit breaker is located on the power supply terminal side or the load terminal side is determined. This is done by comparing. For example, FIG. 2 and FIG. 8 of Patent Document 1 show diagrams viewed from the direction in which the circuit breakers are arranged side by side. In many cases, confirmation is performed by distinguishing the tilting direction of the handle operating unit.

However, the distribution board as described above is generally installed near the ceiling of a wall surface in a building such as a house. That is, it is common to attach to the position which looks up from a resident. When comparing the position of the handle operating part on the power supply terminal side or the load terminal side in such a distribution board mounting state, the direction of looking up and the direction of rotation of the handle operating part are Due to the overlap, there is a problem that it is difficult to distinguish and it is difficult to determine the on / off state.

When a circuit breaker is activated due to overcurrent or electric leakage, etc., and a power outage occurs, it is necessary to investigate the cause of the operation of the circuit breaker and operate the circuit breaker handle to restore it. For the resident who did, there was a problem that it was difficult to find out which circuit breaker was operated among the multiple circuit breakers installed side by side.

In recent years, the design of the handle operating part has been changed and the amount of protrusion from the body is shorter than the safety breaker type circuit breaker shown in the patent document. There is a problem that it becomes more difficult to confirm the on / off state of a plurality of circuit breakers arranged in parallel on the distribution board because the protrusion amount is shortened.

As shown in FIG. 1 of Patent Document 3, an “ON / OFF” display indicating the ON / OFF state of the circuit breaker is generally provided on the body side of the handle operating unit. However, as described above, it is difficult to check the “ON / OFF” display by looking up the distribution board from an obliquely lower side, especially for a resident whose visual acuity has deteriorated, and the “OFF” display is not displayed on the steering wheel. Since it overlaps with the protruding portion, there is a problem that it is difficult to distinguish from obliquely below.

Therefore, the present invention has been made in view of such problems,
Even when a plurality of circuit breakers are installed in the distribution board, check whether the circuit breaker is on / off, that is, on / off state with the distribution board mounted at a predetermined position. It is an object of the present invention to provide a circuit breaker operation part structure that can be easily made and can be easily viewed by a resident who has reduced visual acuity and can be implemented at low cost.

In order to achieve the above object, according to the first aspect of the present invention, an operation member partially protruding outside the body constituting the circuit breaker, and operating in conjunction with the operation member by operating the operation member In a circuit breaker having an opening / closing mechanism for forcibly contacting and separating the fixed contact and the movable contact, and an attachment surface for attaching the circuit breaker to a predetermined surface, the operation member is a first operation member and a second operation member. A rotating member disposed in the container so that the first operating member and the second operating member are rotatable between an on state and an off state of the circuit breaker. The rotating member is rotated in a predetermined direction by connecting and pressing the first operating member, and the rotating member is moved to the predetermined direction by pressing the second operating member. Is rotated in the opposite direction, A latch member that is connected to the pivot member by a link and operates in conjunction with the pivot operation of the pivot member via the link and a cross bar that interlocks with the latch member are driven and supported by the cross bar. A circuit breaker that forcibly contacts and separates a movable contact and a fixed contact disposed opposite to the movable contact, the circuit breaker connecting the first operation member and the second operation member. Arranged in the direction connecting the power supply side terminal and the load side terminal of the first operation member and the shape of the portion of the second operation member projecting out of the body from the direction of pressing the operation member. The first operating member has a round shape, the second operating member has an elongated rectangular shape, and a distribution board is provided on the load side terminal side of the first operating member and the second operating member. C-plane so that it is approximately perpendicular to the direction of looking up Only by those who provided the operation unit structure of the circuit breaker is characterized by being configured.

According to such a configuration, the rotating member is rotated in a predetermined direction by pressing the first operating member, and the second operating member is thereby rotated in a direction opposite to the pressing direction. When the second operating member protrudes to the outside of the container body, the rotating member moves in a direction opposite to the predetermined direction by pressing the second operating member. The first operating member is rotated so that the first operating member moves in a direction opposite to the pressing direction of the second operating member, so that the first operating member protrudes outside the body. When the circuit breaker is in the on state or the off state, one of the first operation member and the second operation member protrudes out of the body and the other operation member is pulled into the body. Is turned on or The off-state can be accurately distinguished from the outside, and even in a state where the circuit breaker is looked up from an obliquely lower side of the distribution board in which the circuit breaker is arranged in parallel, the looking-up direction, the first operating member, and the second operation Since the projecting / retracting direction of the member outside the container does not overlap, it is easy to check the on / off state of the circuit breaker.
Further, since the first operation member and the second operation member are rotatably connected to the rotation member, the operation unit of the present invention can be made by making a small change to the conventional handle operation unit. Since the structure can be modified, the circuit breaker can be changed from a conventional circuit breaker to a circuit breaker that can easily check the on / off state at low cost.

In addition , when the circuit breaker is in the on or off state, the shape of the portion of the operating member that indicates the on or off state that protrudes outside the body is different, so the circuit breaker can be turned on from the outside of the distribution board. It becomes easier to check the off state.

Thereby, when looking up from the outside of a distribution board, the area which can visually recognize an operation member increases , and it becomes easier to confirm the on / off state of the circuit breaker from the outside of a distribution board.

Further, the protruding amounts of the first operating member and the second operating member protruding outside the body may be different from each other in the protruding amount .

As a result, when the circuit breaker is turned on or off, the operation members that indicate the on or off state have different projection amounts from the outside of the body, so that the circuit breaker from the outside of the distribution board is different. It becomes easier to check the on / off status of.

According to the present invention, even when a plurality of circuit breakers are arranged in the distribution board, the circuit breaker is turned on / off in a state where the distribution board is mounted at a predetermined position, that is, It is possible to easily check the on / off state, improve visibility even for a resident with reduced visual acuity, and provide an operation part structure of a circuit breaker that can be implemented at low cost.

The operation part structure of the circuit breaker according to the first embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 and FIG. 2 are schematic internal structural views of the operation part structure of the circuit breaker according to the present invention as viewed from the parallel direction of the circuit breaker. FIG. 1 shows a case where the circuit breaker is turned on, and FIG. 2 shows a case where the circuit breaker is turned off. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure.

In the figure, 1 is a container constituting the outline of the circuit breaker, 21 is a first operation member partially protruding outside the container 1 according to the operation state, and 22 is also according to the operation state. The second operating member partially protruding outside the body 1, 31 is a movable contact, 32 is a fixed contact, 4 is a circuit breaker mounting surface, 5 is a rotating member, 6 is a link, 7 Is a latch member, 8 is a cross bar, 9 is a bimetal, and 10 is an operating plate. In the drawing, the left side is the power supply side terminal side and the right side is the load side terminal side.

Next, each component will be described.
The first operating member 21 and the second operating member 22 are pivotally connected to the rotating member 5 by the first connecting portion 211 and the second connecting portion 221, respectively. The rotation member 5 is pivotally supported at its rotation center 501 by a shaft member (not shown) provided in the container body 1 and presses the first operating member 21 toward the mounting surface 4 side. It rotates counterclockwise in the middle and rotates clockwise in the figure by pressing the second operating member 22 toward the mounting surface 4 side. The rotating member 5 is always urged counterclockwise in the drawing by a spring (not shown).

One end of the link 6 is attached to the link attaching portion 512 of the rotating member 5, and the other end is attached to a link attaching portion 701 provided near the center of the latch member 7. And the latch member 7 are interlocked. Further, a guide portion 500 for restricting the movement of the other end portion of the link 6 on a predetermined locus is provided in the container body 1, and the other end portion of the link 6 is provided by the guide portion 500. Is provided so as to move on a predetermined locus in conjunction with the rotation of the rotating member 5.

Since the latch member 7 is connected to the rotating member 5 and the link 6, the latch member 7 operates in conjunction with the rotation of the rotating member 5. One end of the latch member 7 is provided with a crossbar pressing portion 702 that presses the crossbar 8 when the circuit breaker is turned on, and the other end is provided with a latch portion 703 that latches with the operation plate 10. It has been.

The crossbar 8 supports the movable contact 31 and operates in conjunction with the latch member 7. When the crossbar 8 is pressed by the crossbar pressing portion 702, the movable contact 31 is pushed down in the drawing. When it is brought into contact with the fixed contact 32 and the pressing of the crossbar pressing portion 702 is released, the movable contact 31 is fixed by being lifted upward by a spring (not shown) that constantly biases the crossbar 8 upward. The contact 32 is separated.

The bimetal 9 is provided with a part of the bimetal 9 as an electric circuit (direct heating type), and is bent and deformed in a predetermined direction when a current flows through the electric circuit to generate heat. Note that a part of the bimetal may not be an electric circuit, and a heater may be provided in the vicinity so that the heat of the heater is transmitted to the bimetal so that the bimetal is bent and deformed in a predetermined direction.

The operation plate 10 is pivotally supported by a part of the operation plate 10, and the shaft support portion rotates about the rotation center 101 of the operation plate. The operating plate 10 is always urged counterclockwise by a spring (not shown), and urged in a direction in which the latch portion 703 provided on the latch member 7 and the latch portion 103 of the latch member 7 latch. Has been. Further, the working plate 10 is provided with a bimetal contact portion 102 that comes into contact when the bimetal 9 is bent and deformed, and the bimetal 9 comes into contact with the bimetal contact portion 102 to rotate the working plate. It rotates clockwise around the center 101.

Next, the operation of the operation unit of the circuit breaker will be described.

First, the case where the circuit breaker is operated from the OFF state to the ON state will be described. In the cut-off state, as shown in FIG. 2, a part of the first operation member 21 protrudes outside the container body 1, and the second operation member 22 is housed inside the container body 1. It has become.

When the first operating member 21 is pressed from the outside of the body 1 toward the inside of the body 1, the rotating member 5 and the first operating member 21 are connected by the first connecting portion 211. Therefore, the rotation member 5 starts to rotate counterclockwise about the rotation center 501. As the rotating member 5 rotates, the second connecting portion 221 starts to move upward in the figure, and the second operating member 22 connected to the connecting portion 221 in the second operating member-inserted state 2 is also used. The movement starts upward in the figure.

The link 6 also starts to move with the rotation of the rotating member 5, and the other end of the link 6 draws a predetermined locus along the guide portion 500 in the downward direction in the figure. Make a move to. Since the latch member 7 is connected to the rotating member 5 by the link 6, the latch member 7 starts to move downward in the drawing as the rotating member 5 rotates.

When the latch member 7 is pressed by the link 6 and moves downward in the figure, first, the latch portion 703 comes into contact with the latch portion 103 of the actuating plate 10 with the latch member 7. When the latch portion 703 comes into contact with the latch portion 103 of the operation plate 10, it starts to rotate counterclockwise around the latch portion 703 and is pressed against the link 6, whereby the crossbar pressing portion 702 is pressed. While abutting against the crossbar, the crossbar pressing portion 702 pushes down the crossbar 8.

Now, when the first operating member 21 is pressed from the outside of the body 1 toward the inside of the body 1, the turning member 5 starts to rotate counterclockwise around the turning center 501. Since the rotating member 5 is urged clockwise by a spring that constantly urges the rotating member 5 in the clockwise direction and a spring that constantly urges the cross bar 8 in the upward direction, When the pressing is released in the middle of the transition to the on state, the rotating member 5 again rotates clockwise toward the original position, and the first operating member 21 also returns to the original position. It behaves so as to move in the direction of protruding to the outside of 1. The strength of the spring that constantly urges the rotating member 5 in the clockwise direction and the strength of the spring that constantly urges the cross bar 8 in the upward direction are always applied to the cross bar 8 in the upward direction. The biasing spring is provided to be larger.

Here, when a line connecting the rotation center 501 of the rotation member 5 and the link mounting portion 701 of the latch member 7 is a dead line, the first operation member 21 is directed from the outside of the body 1 to the inside of the body 1. When the link attachment portion 512 exceeds the dead line due to the rotation of the rotation member 5, the balance of the link is lost, that is, the rotation member moving center 501 and the link attachment portion shown in FIG. A substantially square shape connecting 512 and the link mounting portion 701 becomes a reverse generally square shape as shown in FIG. 1, and the spring is always biased in the upward direction by the spring. The rotating member 5 is now urged to rotate in the clockwise direction. As a result, the first operating member 21 moves to a position where it is housed in the body 1 and the second operating member 22 is moved. Moves to a position where a part protrudes outside the vessel 1. The movable contact 31 supported by the cross bar 8 comes into contact with the fixed contact 32 by being pressed by the cross bar 8, and the operation of the circuit breaker from the OFF state to the ON state is completed.

Next, the case where the circuit breaker is operated from the on state to the off state will be described. In the on state, as shown in FIG. 1, a part of the second operation member 22 protrudes outside the container body 1, and the first operation member 21 is housed inside the container body 1. It has become.

In this state, the second operating member 22 is pressed from the outside of the container body 1 toward the inside of the container body 1, and the force by the pressing urges the rotating member 5 in the counterclockwise direction. When the force is won, the rotating member 5 starts to rotate in the clockwise direction. The link mounting portion 512 gradually approaches the deadline, and when the deadline is exceeded, the link is unbalanced, and a spring that constantly biases the rotating member 5 in the clockwise direction, and the crossbar By the action of a spring that constantly biases 8 upward, the rotating member 5 is biased in the clockwise direction and rotates in the clockwise direction. As shown in FIG. 2, the first operation member operation member 21 moves to a position where a part of the first operation member operation member 21 protrudes outside the container body 1, and the second operation member 22 is disposed inside the container body 1. Move to the position where it is stored.

Further, since the cross bar 8 moves upward in the figure, the movable contact 31 supported by the cross bar 8 is separated from the fixed contact 32 and linked in conjunction with the rotation of the rotating member 5 in the clockwise direction. 6, the latch member 7 is also moved upward in the figure, and the circuit breaker is in the cut state shown in FIG.

When an abnormal current such as an overcurrent occurs in the circuit when the circuit breaker is in the on state, the bimetal 9 is bent and deformed to abut against the abutting portion 102 of the operating plate 10, and the bimetal 10 When the operation plate 10 is rotated in the clockwise direction in the figure, when the latch portion 103 with the latch member 7 and the latch portion 703 with the operation plate 10 are unlatched, the movement of the latch member 7 is restricted. When it is released, it can freely rotate in the clockwise direction in the figure, and is constantly pressed in the upper direction in the figure by the cross bar 8 that is urged in the upper direction in the figure, and the clock in the figure with the link attachment portion 701 as the center of rotation. The cross bar 8 moves in the upward direction in the figure while rotating in the surrounding direction, and the movable contact 31 supported by the section loss bar 8 moves away from the fixed contact 32. Further, since the rotating member 5 is always biased in the clockwise direction, the rotating member 5 starts to rotate in the clockwise direction, and the latch member 7 is pulled upward by the link, and the first operating member 21 is mounted on the body. The circuit breaker is in the cut-off state shown in FIG. 2 by moving the second operating member 22 in a direction in which the second operating member 22 is housed inside the container body 1.

Further, when the circuit breaker is in the on state, when an abnormal current such as an overcurrent occurs in the electric circuit, even when the first operation member 21 or the rotation member 5 does not move, as described above, When the latch part 103 with the latch member 7 and the latch part 703 with the operating plate 10 are unlatched, the latch member 7 is released from the restriction and can rotate in the clockwise direction in the figure. The latch member 7 is constantly pressed in the upper direction in the drawing by the cross bar 8 urged in the upper direction in the drawing and rotated in the clockwise direction in the drawing with the link attachment portion 701 as the center of rotation. The cross bar 8 can move upward in the figure, and the movable contact 31 supported by the cross bar 8 is separated from the fixed contact 32 and opened. That is, a so-called trip-free operation is performed.

Because the operation part of the circuit breaker was configured in this way,
The rotating member is rotated in a predetermined direction by pressing the first operating member, and the second operating member is moved in a direction opposite to the pressing direction by the second operating member. The operating member of the
By pressing the second operating member, the rotating member is rotated in a direction opposite to the predetermined direction, and the first operating member thereby rotates the second operating member in the pressing direction. Moves in the opposite direction so that the first operating member protrudes outside the body,
When the circuit breaker is in the on state or the off state, one of the first operating member and the second operating member protrudes out of the container and the other operating member is pulled into the container. Thus, the on-state or the off-state can be accurately distinguished from the outside, and even in the state where the circuit breaker is arranged from the diagonally lower side of the distribution board, the direction to look up and the first operating member Since the direction in which the second operating member protrudes / withdraws outside the container does not overlap, an operating part structure that makes it easy to check the on / off state of the circuit breaker can be provided.

Next, a second embodiment will be described.

3 and 4 show examples of the circuit breaker according to the second embodiment, and show the circuit breaker as viewed toward the operation unit. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure. In the figure, the upper side shows the power supply side terminal side and the lower side shows the load side terminal side. The mechanism inside the container 1 is the same as that in the first embodiment described above.

In FIG. 3, reference numeral 1021 denotes a first operation member, and 1022 denotes a second operation member, each of which has a round shape and a square shape. When the circuit breaker is in the on state, the second operation member 1022 is positioned so as to protrude outside the container body 1, and the first operation member 1021 is positioned so as to be housed inside the container body 1. . Further, when the circuit breaker is in a cut-off state, the first operation member 1021 is positioned so as to protrude outside the container body, and the second operation member 1022 is positioned so as to be housed inside the container body 1. To do.

In FIG. 4, reference numeral 1021 denotes a first operation member, and 1022 denotes a second operation member, each of which has a round shape and an elongated rectangular shape. When the circuit breaker is in the on state, the second operation member 1022 is positioned so as to protrude outside the container body 1, and the first operation member 1021 is positioned so as to be housed inside the container body 1. . Further, when the circuit breaker is in a cut-off state, the first operation member 1021 is positioned so as to protrude outside the container body, and the second operation member 1022 is positioned so as to be housed inside the container body 1. To do.

As a result, when the circuit breaker is turned on or off, the shape of the portion of the operating member that indicates the on or off state that protrudes outside the body is different. This makes it easier to check on / off status. In particular, the shape shown in FIG. 4 is configured so that the sign indicating the on / off state of the circuit breaker is substantially matched with the shape of the operating member. According to the shape, the user can intuitively understand whether the circuit breaker is in the on state or the off state.

Japanese Patent Laid-Open No. 2002-56763 discloses a new type 2 in which the width of the circuit breaker is reduced to approximately half the size as an alternative to the circuit breaker (safety breaker type) disclosed in Patent Documents 1 and 2. Although an example of a pole circuit breaker is shown, an example in which the present invention is applied to a two-pole circuit breaker as shown in this document is shown in FIG.

In the new type of circuit breaker for branching, the interval between the operation handles when a plurality of the branch circuit breakers are arranged in parallel is closer than that in the case of the conventional safety breaker type. For this reason, when the operation part structure of the present invention is applied, when the branch circuit breaker is turned on or off, a plurality of two-pole circuit breakers shown in JP-A-2002-56763 are arranged in parallel. It can be done more easily than

Next, a third embodiment will be described.

6 and 7 show an example of the circuit breaker according to the third embodiment, and a schematic internal structural view of the circuit breaker viewed from the parallel direction. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure. FIG. 6 shows a case where the circuit breaker is turned on, and FIG. 7 shows a case where the circuit breaker is turned off.

In the figure, the left side is the power supply side terminal side, and the right side is the load side terminal side. The mechanism inside the container 1 is the same as that in the first embodiment described above.

Reference numeral 2021 denotes a first operation member, and 2022 denotes a second operation member, which are configured with different lengths in the vertical direction in the drawing. In the present embodiment, when the circuit breaker is in the on state, the amount of the first operation member 2021 and the second operation member 2022 protruding outside the body 1 is substantially the same. The lengths of the first operating member 2021 and the second operating member 2022 are different so that the protruding amount of the first operating member 2021 to the outside of the container 1 is significant when the is in the off state. It is configured.

As a result, when the circuit breaker is in the on or off state, the operation member indicating the on or off state has a configuration in which the protruding amounts of the portions protruding to the outside of the vessel body are different from each other. Since the protruding amounts of the two operation members are different in the on state and the off state, it is easier to check the on / off state of the circuit breaker from the outside of the distribution board.

Next, a fourth embodiment will be described.

8 and 9 show an example of the circuit breaker according to the fourth embodiment, and a schematic internal structural view of the circuit breaker as viewed from the side-by-side direction is shown. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure. FIG. 8 shows a case where the circuit breaker is turned on, and FIG. 9 shows a case where the circuit breaker is turned off.

In the figure, the left side is the power supply side terminal side, and the right side is the load side terminal side. The mechanism inside the container 1 is the same as that of the first embodiment described above except that the second operation member 3022 is integrally formed with the rotating member 5.

In the present embodiment, reference numeral 3021 in the figure is the first operating member, and the second operating member 3022 is integrally formed at a predetermined position of the rotating member 5.

When the circuit breaker is in the on state, the second operation member 3022 provided integrally with the rotating member 5 is positioned so as to protrude to the outside of the body 1, and the first operation member 3021 is the body 1. It is located so as to be stored inside. In addition, when the circuit breaker is in the cut-off state, the first operation member 3021 is positioned so as to protrude outside the body, and the second operation member 3022 provided integrally with the rotating member 5 is the body. It is located so as to be housed inside 1.

As a result, when the operation member of the circuit breaker is provided, one operation member is used as a rotation member as compared with the case where the operation member is composed of the first operation member and the second operation member. By integrally forming the circuit breaker, it is possible to easily check the on / off state of the circuit breaker and to provide the circuit breaker at a lower cost.

Further, as a configuration for facilitating the confirmation of the on / off state of the circuit breaker, the first operating member and the second operating member may be configured in different colors. Thereby, since the color when the operation member protrudes outside the container is different between the on state and the off state, it is possible to make it easier to check the on state or the off state. More specifically, for example, in FIGS. 1 and 2, it is preferable to configure the protruding surfaces on the load side terminal side of the first operating member and the second operating member to be different from each other. This is because when the distribution board with circuit breakers arranged in parallel is looked up, the protruding surfaces on the load side terminal side of the first operating member and the second operating member are substantially aligned with the looking up direction. It is because it is easy to do. In addition, in the first operation member and the second operation member, by coloring the portions hidden in the container 1 in different colors, either one of the colors can be obtained from the outside of the container 1. It may be configured such that only the device can be visually recognized, and the on state or the off state can be distinguished by the difference in color.

Further, in the first operating member and the second operating member, a C surface is provided on the load side terminal side of the first operating member and the second operating member, and a direction in which the distribution board is looked up. And the C plane may be provided so as to be substantially orthogonal. Thereby, when it looks up from the outside of a distribution board, the area which can visually recognize an operation member increases, and it can make it easier to confirm the ON state or the OFF state of a circuit breaker. In addition, the C surface may be colored or provided with a sign such as “ON” indicating an ON state or “OFF” indicating a OFF state.

Moreover, although embodiment described above has shown the structure which makes the rotation member 5 and the latch member 7 interlock | cooperate using the link 6, as shown, for example in FIG. The portion facing the latch member 7 is fleshed so that force is balanced in the direction toward the latch member 7, and the latch member is rotated by rotating the rotating member when the circuit breaker is operated from the cut-off state to the on-state. It is good also as a structure which acts directly on this, pushes down this latch member, and the said link 6 can be abbreviate | omitted.

When the circuit breaker is operated from the on state to the off state, the crossbar 8 is always urged upward in the figure, so that it is latched by the fleshing portion provided on the rotating member. When the pressing action on the member is released, the cross bar moves upward, and the latch member 7 is pushed upward to move the latch member to a predetermined position in the cut state.

As described above, since the operation part structure in the circuit breaker of the present invention is easy to check the on / off state of the circuit breaker, it is not only arranged on a residential distribution board. By placing the switchboard on an industrial distribution board, it may be possible to more easily check the on / off state of the circuit breaker at the work site.

It is the schematic structure figure which showed the operation part structure of the circuit breaker of 1st embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 1st embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 2nd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 2nd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 2nd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 3rd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 3rd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 4th embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 4th embodiment of this invention. It is a figure explaining other embodiment. It is a figure explaining background art. It is a figure explaining background art. It is a figure explaining background art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 21 1st operation member 22 2nd operation member 31 Movable contact 32 Fixed contact 4 Mounting surface 5 Rotating member 6 Link 7 Latch member 8 Crossbar 9 Bimetal 10 Acting plate 500 Guide part 1021 1st operation member 1022 2nd operation member 2021 1st operation member 2022 2nd operation member 3021 1st operation member 3022 2nd operation member

Claims (2)

An operation member partially protruding outside the body constituting the circuit breaker, and an opening / closing operation that operates in conjunction with the operation member to forcibly contact and separate the fixed contact and the movable contact by operating the operation member. In a circuit breaker having a mechanism and an attachment surface for attaching the circuit breaker to a predetermined surface, the operation member is composed of a first operation member and a second operation member, and the first operation member and the A second operating member is connected to each rotating member disposed in the container so as to be rotatable between an on state and an off state of the circuit breaker, and the first operating member is pressed. The rotating member is rotated in a predetermined direction by pressing the second operating member, and the rotating member is rotated in a direction opposite to the predetermined direction by pressing the second operating member. Connected by a link, and A latch member that operates in conjunction with a rotation operation of the member and a cross bar that operates in conjunction with the latch member are driven, and a movable contact supported by the cross bar and a fixed disposed opposite to the movable contact. A circuit breaker that forcibly contacts and separates the contact,
The first operating member and the second operating member are arranged in a direction connecting the power supply side terminal and the load side terminal of the circuit breaker, and are disposed outside the body of the first operating member and the second operating member. The shape of the protruding part
The first operating member is formed in a round shape and the second operating member is formed in a long and narrow quadrilateral shape from the direction of pressing the operating member, and the first operating member and the second operating member An operation part structure of a circuit breaker, characterized in that a C surface is provided on the load side terminal side so as to be substantially orthogonal to a direction in which the distribution board is looked up .
The protrusion amount protruding vessel outside of the first operating member and the second operating member, an operation section structure of the circuit breaker 請 Motomeko 1 wherein you characterized in that Chigae mutually protruding amount.

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