JP2002078120A - Residential distribution panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a residential distribution panel which makes the errors less in the operation of a branch circuit breaker's handle. SOLUTION: A cover panel 20 has an opening 22 to stick the boss portions 32b of the branch circuit breakers 32's handles 32a. These breakers 32 are fixed inside a body 10. Seals 24, which display the marks of the circuit breakers 32's loads, are sticked with on the periphery of the opening and on both sides of the vertical direction to the juxtaposing line as the branch circuit breakers 32 are juxtaposed. The divided line 24a, which distinguishes the pair of the two branch breakers adjacent each other in parallel from the other pair, are represented on the cover. The mark corresponding to one of the pair of the adjacent breakers is represented on the sticked seal 24 at the upper periphery of the opening. The mark corresponding to the other pair of the adjacent breakers is represented on the sticked seal 24 at the lower periphery of the opening.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board for general household use which can operate respective handles of a main circuit breaker and a branch circuit breaker without removing a cover.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. 9-2
What is described in 15128 gazette is known. In the distribution board described in this publication, a main circuit breaker (main breaker) and a plurality of branch circuit breakers (branch breakers) are housed in a body having an open front, and a main circuit breaker and a branch are provided on the front of the body. A cover provided with a window hole exposing a handle, which is an operation unit of each circuit breaker, is attached. Here, each handle protrudes from the front surface of the cover regardless of whether the contacts opened and closed by the operation of the handle are open or closed. The body and the cover constitute a box.

[0003]

By the way, in the distribution board described in the above publication, the handle of the branch circuit breaker protrudes from the front surface of the cover even when the contacts are closed. Since the circuit breakers are juxtaposed, the handle of the branch circuit breaker may be erroneously operated.If the handle is erroneously operated in the closed state of the contacts, a heavy load is imposed on the load used. In the worst case, the load may be destroyed.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a distribution board for residential use in which a handle of a branch circuit breaker is less likely to be erroneously operated.

[0005]

According to a first aspect of the present invention, there is provided a vehicle having a body which is open on one side, and a handle for opening and closing a contact in the body is provided on a boss protruding from a front side of the body. A main circuit breaker and a plurality of branch circuit breakers, and a cover coupled to the opening side of the body and having a window hole corresponding to a boss of the main circuit breaker and the branch circuit breaker. An even number of the branch circuit breakers are juxtaposed side by side, and the branch circuit breakers are provided on both sides of a peripheral edge of the window hole on the front surface of the cover and in a direction orthogonal to a direction in which the branch circuit breakers are arranged. A seal provided with a display for distinguishing the use load of the circuit breaker is affixed, and the seal is marked with a dividing line that distinguishes two branch circuit breakers adjacent in the juxtaposition direction as one set, Perpendicular to the juxtaposition direction The seal attached to one side of the direction is provided with the indication corresponding to one of the two adjacent branch circuit breakers, and attached to the other side in a direction orthogonal to the juxtaposition direction. Since the seal is provided with the display corresponding to the other of the two adjacent branch circuit breakers, it is possible to sufficiently secure a place for displaying the working load of each branch circuit breaker. Since the display of the name of the load or the like can be easily viewed, the possibility that the handle of the branch circuit breaker is operated by mistake can be reduced.

According to a second aspect of the present invention, in the first aspect of the invention, the seal has a line so as to distinguish one of the two adjacent branch circuit breakers in the juxtaposition direction as the one corresponding to the display. Is provided, it is possible to easily determine which of the two adjacent branch circuit breakers the display corresponds to.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 3, the distribution board for a house according to the present embodiment comprises one main circuit breaker 31, a plurality of branch circuit breakers 32, and an independent circuit breaker 33 described later. A distribution board arranged in the box body 1, comprising a branch circuit breaker 32.
Are provided in plural and are arranged side by side in two upper and lower rows. The box 1 is a synthetic resin molded product and includes a rectangular frame-shaped body 10 and a cover 20 coupled to the front side of the body 10 (the lower right side in FIG. 3).

As shown in FIGS. 3 to 5, the body 10 is formed in a shape in which a peripheral wall 12 protrudes forward over the entire outer periphery of a bottom plate 11 formed in a rectangular frame shape (that is, as shown in FIGS. 3 to 5). The body 10 has an open front surface), and a rectangular opening 13 is formed in the center of the bottom plate 11.
On the bottom plate 11, two support bases 14a and 14b are provided to project right and left. Guide walls 15a, 15b each having an L-shaped cross section and arranged so as to form a corner of a rectangular area are formed around both support bases 14a, 14b. A retaining boss 16 is formed adjacent to the upper support base 14a below and whose protrusion from the bottom plate 11 is slightly larger than that of the support base 14a. A lower half of the receiving piece 17 is continuously and integrally formed on the front end surface of the guide wall 15b provided around the lower support 14b. Here, the receiving piece 1 from the bottom plate 11
The distance to 7 is set slightly larger than the distance from the bottom plate 11 to the distal end surface of the support 14b.

The peripheral edge of the opening window 13 in the bottom plate 11 forms a reinforcing ridge 18 projecting forward all around.
The peripheral portion of the opening window 13 is reinforced by the reinforcing ridge 18. In other words, the rigidity can be maintained by the reinforcing ridge 18 while forming the opening window 13 having a relatively large area.
Further, through holes 19 for fixing respective upper and lower ends of a bridging member 131, which will be described later, are formed at equal pitches in the left and right directions in the upper and lower portions of the opening window 13 in the reinforcing ridge 18.

As shown in FIG. 5, the bridging member 131 is formed to have a larger vertical dimension than the vertical dimension of the opening window 13 in the bottom plate 11. Bridge member 1
31 is fixed to the body 10 using mounting screws 132 (see FIG. 5), whose both ends along the up-down direction (longitudinal direction) are placed on the reinforcing ridges 18 and screwed into the through holes 19. You. At both ends in the longitudinal direction of the bridging member 131, insertion holes 134 through which the mounting screws 132 are inserted are provided. In addition, a support 130 that protrudes forward from both ends and supports one end (left end in FIG. 5) of a gantry 40 described later is integrally provided at an intermediate portion in the longitudinal direction of the bridging member 131. Fixing holes 135 and 135 for fixing the gantry 40 are provided on the front surfaces of both ends in the longitudinal direction of the support 130.
(See FIG. 3). Both fixing holes 135, 13
5 around the guide wall 15 on the right side of the bottom plate 11
Guide walls 136a and 136b having an L-shaped cross section are formed so as to form the corners of the rectangular area together with a and 15b. In the front surface of the upper end of the support 130, the fixing holes 1
A retaining boss 133 is protruded in the vicinity below 35. A lower half receiving piece 138 (FIG. 5) is provided on the front end surface of the guide wall 136b provided around the lower fixing hole 135.
Is formed continuously and integrally.

The cover 20 has an outer peripheral surface at the rear end portion of the body 10.
Substantially coincides with the outer peripheral surface of the front end of the peripheral wall 12. Cover 20
As shown in FIGS. 1 to 3, handles 31a, 32a, which are operation units of a main circuit breaker 31, a branch circuit breaker 32, and a self-supporting circuit breaker 33 housed in the body 10 are provided.
It has window holes 21, 22, 23 for exposing the boss portions 31b, 32b, 33b on which 33a is disposed. In the present embodiment, the branch circuit breakers 32 are arranged side by side in six rows in two rows in the upper and lower rows, and the window holes 22 of the cover 20 collectively connect the boss portions 32b of the six branch circuit breakers 32. It is formed to be exposed. That is, the cover 20
Two upper and lower window holes 22 corresponding to the plurality of branch circuit breakers 32 arranged in two rows in the upper and lower rows are formed. put it here,
In the branch circuit breaker 32, the boss portion 32b is formed in a rectangular frame shape, and as shown in FIG. 4, the front edge of the boss portion 32b and the peripheral edge of the window hole 22 on the front surface of the cover 20 are substantially flush with each other. Is arranged in the body 10 as shown in FIG.

The right support 14 formed on the body 10
A main circuit breaker 31 and a branch are provided between a, 14b and a support 130 protruding from a bridging member 131 bridged between reinforcing ridges 18 on both upper and lower edges of the opening window 13 of the body 10. A gantry 40 for mounting an internal unit such as the circuit breaker 32 is provided.

The gantry 40 has a rectangular planar shape as a whole, and has support pieces 41a and 41 provided at four corners, respectively.
5, two support pieces 41b, 41b on the right side in FIG. 5 are respectively mounted on support bases 14a, 14b projecting from the bottom plate 11 of the body 10, and two support pieces 41b, 41b on the left side in FIG. The support pieces 41a, 41a are placed on a support 130 projecting from the middle of the bridging member 131, and the right end is fixed to the body 10 using mounting screws 42 screwed into the right supports 14a, 14b. And the mounting screw 42 screwed into the fixing hole 135 of the left support 130.
The left end is fixed to the support table 130 by using.

Here, each of the support pieces 41 and 41b has a groove having a width smaller than the diameter of the mounting screw 42 in a part of the upper edge of a large-diameter portion having a round hole shape larger than the diameter of the head of the mounting screw 42. A mounting hole 43 formed in a continuous keyhole shape is formed. Therefore, the large diameter portion of the mounting hole 43 is passed through the head of the mounting screw 42 in a state where the mounting screw 42 is loosely screwed into the fixing holes 135 and 135 of the supporting tables 14 a and 14 b and the supporting table 130.
The work of attaching the gantry 40 to the body 10 can be easily performed by tightening the attachment screw 42 after sliding the head of the attachment screw 42 to a position corresponding to the groove. Further, as described above, the support bases 14a,
Guide walls 15a and 15b are formed around 14b,
A guide wall 136 is provided around the fixing hole 135 of the support base 130.
Since the a and 136b are formed, positioning can be easily performed by adjusting the mounting position of the gantry 40 to the guide walls 15a, 15b, 136a and 136b, and the lower guide walls 15b and 136b have receiving pieces. 17 and 138 are formed, a part of the lower support pieces 41b and 41a are overlapped on the rear side of the receiving pieces 17 and 138, so that even if the mounting screw 42 is removed, the mounting pieces 17 and 138 are used to mount the base. It can receive a load of 40. Further, when the mounting screw 42 is inserted into the groove of the mounting hole 43, the locking boss 1 is inserted such that the locking bosses 16 and 133 are inserted into the large diameter portion of the mounting hole 43.
6, 133 are set, and after the mounting screw 42 is tightened, the support pieces 41b, 41a are prevented from rotating with respect to the body 10. In addition, retaining boss 1
6 and 133 are inserted into the large-diameter portion of the mounting hole 43, so that the support pieces 41b and 41
The rattling of a is prohibited. For example, even if the mounting screw 42 is slightly loosened over time due to an external vibration such as an earthquake, the gantry 40 can be prevented from moving or falling off with respect to the body 10.

A main mounting plate 50 as a member for mounting the main circuit breaker 31 among the members constituting the gantry 40.
As shown in FIGS. 5 and 6, is formed by a sheet metal (iron plate) in a vertically long rectangular shape having a smaller vertical dimension than the vertical dimension of the opening window 13 formed in the body 10. A pair of upper and lower support pieces 41a is protruded from the left edge along the longitudinal direction of the main mounting plate 50, and a pair of upper and lower connection pieces 51 is protruded from the right edge. The connecting piece 51 has a U-shaped cross section, and has a keyhole-shaped connecting hole 52 similar to the mounting hole 43 of the support piece 41a. In addition, as a member for attaching the branch circuit breaker 32 in the gantry 40, a pair of upper and lower frames 45a, 45 as shown in FIGS.
b, and a mounting plate 46 (see FIG. 4) installed between the frames 45a and 45b.
One end (right end) in the longitudinal direction of 45b is the support piece 4 described above.
1b and 41b. Also, both frames 45a, 45b
The connecting screw 47 (FIG. 5)
Screw holes (not shown) for screwing the connection screws 47 into the connection screw holes through the connection holes 52 to thereby connect the main trunk mounting plate 50 and both frames 45.
a and 45b are connected.

As shown in FIG. 6, two connecting holes 55 are formed on the left side of the main mounting plate 50. In the present embodiment, even when the main circuit breaker 31 is shut off, power to the fire alarm and the like can be secured.
An independent power supply system for obtaining power from the power supply side of the main circuit breaker 31 is provided, and the independent circuit breaker 33 as an internal unit is inserted into the independent power supply system separately from the branch circuit breaker 32. The self-contained circuit breaker 33 has the same configuration as the branch circuit breaker 32, and has a conductive bar (described later) on the power supply side.
Are inserted into and connected to three slit-shaped terminal portions 34a to 34a.
4c is provided. In the self-supporting circuit breaker 33, no member for connecting the conductive bar is provided at the central terminal portion 34b, and only the terminal portions 34a and 34c are effectively used. In addition, a mounting groove 35 is formed on one end surface in the longitudinal direction of the body of the self-supporting circuit breaker 33.

The self-standing circuit breaker 33 includes a main mounting plate 50.
Is attached to the auxiliary attachment plate 60 connected to. The auxiliary mounting plate 60 is formed in a rectangular shape, and has two connecting pieces 62 extending on the right edge via a step 61. A connecting hole 63 is formed in each connecting piece 62, and when a connecting screw 64 is screwed into the connecting hole 55 provided in the main mounting plate 50 through the connecting hole 63, the auxiliary mounting plate 60 is connected to the main mounting plate 50. be able to.

The auxiliary mounting plate 60 has a lateral width substantially equal to the lateral width of the self-supporting circuit breaker 33. When the self-supporting circuit breaker 33 is mounted on the front side of the auxiliary mounting plate 60, the left and right sides of the self-supporting circuit breaker 33 are provided. Supporting pieces 67 abutting on both side surfaces are integrally provided on the left and right side edges. At one end (lower end) of the auxiliary mounting plate 60 in the longitudinal direction, a mounting locking piece 65 that is inserted into the mounting groove 35 of the self-supporting circuit breaker 33 is integrally provided. At the other end (upper end) in the longitudinal direction of the auxiliary mounting plate 60, a fixing hole 66 for mounting the relay terminal block 70 is formed.

In the relay terminal block 70, three bar terminals 71a to 71c inserted and connected to the terminal portions 34a to 34c of the self-supporting circuit breaker 33 project from a base 72 of a synthetic resin molded product. A terminal 73 having terminal screws electrically connected to the bar terminals 71a to 71c.
Here, the bar terminals 71a and 71b are electrically connected. Therefore, the terminal 73 has two terminals, and each terminal 73 is connected to one terminal of one voltage pole and one terminal of the neutral pole on the power supply side of the main circuit breaker 31 via the connection wire 74 (see FIG. 5). Connected. That is, the relay terminal block 70
The terminal portions 34a to 34c of the self-supporting circuit breaker 33 are formed from the shape of the electric circuit of the connection wire 74 connected to the main circuit breaker 31.
It has a function of converting into the shape of an electric circuit of bar terminals 71a to 71c corresponding to the terminal 34c. Further, a through hole 75 corresponding to the fixing hole 66 of the auxiliary mounting plate 60 is formed in the base 72, and a fixing screw 76 inserted through the through hole 75 is screwed into the fixing hole 66, so that the relay terminal block 70 is formed. Can be fixed to the auxiliary mounting plate 60.

Thus, the self-supporting circuit breaker 33 is arranged between the left and right support pieces 67 so that the mounting locking piece 65 provided on the auxiliary mounting plate 60 is inserted into the mounting groove 35 provided on the self-supporting circuit breaker 33. Then, the bar terminals 71a-
When the relay terminal block 70 is fixed to the auxiliary mounting plate 60 with the fixing screw 76 in a state where the 71c is inserted and connected, the self-supporting circuit breaker 33 is held by the auxiliary mounting plate 60 and the relay terminal block 70, and Can be fixed. In the stand-alone circuit breaker 33, only the terminal portions 34a and 34c are electrically connected to the bar terminals 71a and 71c.
The voltage between one voltage pole and the neutral pole is applied to the self-supporting circuit breaker 33.

As shown in FIGS. 3 and 5, the body 10 has a frame 40 on which a main circuit breaker 31 and a plurality of branch circuit breakers 32 are disposed, and a wooden board 14 as shown in FIGS.
The wooden board mounting base 140 to which the first mounting plate 1 is mounted is also stored. Here, the wooden board mounting base 140 is detachably attached to the bridging member 131 using hooking projections 142, 142 projecting from the right side surface. On the left side surface of the bridging member 131, a rectangular narrow portion narrower than the hooking projection 142 is continuous with a part of the lower edge of the rectangular wide portion having a width in the front-rear direction larger than the hooking projection 142. L-shaped hook holes 137 are formed. Therefore, the wooden board mounting base 140 inserts the hooking projection 142 from the wide portion of the hooking hole 137 and moves the wooden board mounting base 140 downward to move the hooking projection 142 into the hooking hole 13.
7 to overlap with the opening edge of the narrow portion of the bridge member 13.
Attach to 1.

The wooden board mounting base 140 is mounted on support bases 44a and 44b (see FIG. 3) in which two mounting pieces 143 and 143 protruding from the left side surface protrude from the bottom plate 11 of the body 10. It is fixed to the body 10 using mounting screws 145 (see FIG. 5). Here, each mounting piece 143, 1
At 43, mounting grooves 144 and 144 (see FIG. 3) are formed in which the lower side is opened and mounting screws 145 and 145 are inserted.

The branch circuit breaker 32 has a structure as shown in FIGS. 7 and 8, and has a slit-like shape to which conductive bars 110a to 110c (see FIGS. 4 and 5) are connected on the power supply side. Three terminal portions 37a to 37c are provided. In the branch circuit breaker 32, the central terminal portion 37b
Is not provided with a member for connecting the conductive bar, and only the terminal portions 37a and 37c are effectively used.
Is connected to the conductive bar 110a of the neutral electrode, and the terminal portion 37c
, One of the conductive bars 110b and 110c of the voltage electrode is connected. In short, the branch circuit breaker 32 is formed by the conductive bars 11 arranged along the left-right direction on the gantry 40.
Terminal parts 37a to 37c are connected to 0a to 110c, and the branch circuit breakers 32 in the upper row of the upper and lower two rows are arranged so that the terminal parts 37a to 37c are located at the lower end,
The branch circuit breakers 32 in the lower row have terminal portions 37a-3 at the upper end.
7c is located.

It should be noted that the two conductive bars 110b,
A connecting piece 111 (see FIG. 4) is protruded forward from one side edge of the short side 110c (the vertical direction in FIG. 4). The connection piece 111 has two terminal insertion pieces 111b, 1
11c is extended, one terminal insertion piece 111c is extended from the connection piece 111 in a direction orthogonal to the connection piece 111 so as to face the conductive bars 110b, 110c, and the other terminal insertion piece 111b is connected to the conductive bar 110b, The connection piece 111 is extended in a direction orthogonal to the connection piece 111 so as to be separated from the connection piece 110c. Further, the distance from the conductive bars 110b, 110c to the terminal insertion piece 111b is larger than the distance from the conductive bar 110b, 110c to the terminal insertion piece 111c. Therefore, the terminal insertion piece 111
b and 111c will be located in front and back. Furthermore, the terminal insertion pieces 111b and 111c provided on the other conductive bars 110b and 110c are located in front and rear, and the positions of the two terminal insertion pieces 111b and 111c are aligned vertically and horizontally. With such an arrangement, the two terminal insertion pieces 111b and 111c arranged in front and back are mutually connected to the other conductive bar 1
10b and 110c. Here, the position in the up-down direction of the lateral edge of the conductive bar 110a of the neutral pole also coincides with the distal edge of both terminal insertion pieces 111b and 111c. The connection pieces 111 provided on the different conductive bars 110b and 110c are insulated by the partition wall 101. One of the terminal insertion pieces 111b of the conductive bars 110b and 110c is inserted into the terminal portion 37b.
The other terminal insertion piece 111c of the conductive bars 110b, 110c is inserted into 7c.

As shown in FIG. 5, the conductive bars 110a to 110c are connected to terminals (hereinafter, referred to as load terminals) of the main circuit breaker 31.
(Referred to as a load-side terminal) 84 via the connection member 38. The connection member 38 is a holding body 38 of a resin molded product.
A feed bar 38b made of a conductive plate serving as an electric path is held by a, and the conductive bars 110a to 110c are electrically connected to the main circuit breaker 31 via the feed bar 38b. Feed bar 38b and conductive bars 110a-110
It is connected to c using a fixing screw 117 so as not to come off.

As shown in FIGS. 7 and 8, the branch circuit breaker 32 has a handle 32a for opening and closing the contacts 30 in the body inside a rectangular frame-shaped boss 32b projecting from the front side of the body. Is disposed, the handle 32a
In the state where one end 26 is pivotally attached to the body and the other end does not project from the opening surface of the boss 32b when the contact 30 is closed (the state of FIG. 7), the contact 30 is opened. In the state (the state of FIG. 8), it is rotatable between a position protruding from the opening surface of the boss 32b. Here, the boss portion 32b is formed in a rectangular frame shape, and the handle 32a is connected to the boss portion 32b with the contact 30 closed.
Not to protrude from the opening surface. In other words, when the contact 30 is closed, the handle 32a and the front end of the boss 32b are aligned on substantially the same plane. When the cover 20 is attached to the body 10, as shown in FIG. 4, the front edge of the boss portion 32b and the peripheral edge of the window hole 22 on the front surface of the cover 20 are located on the same plane. Therefore, the handle 32a is rotatable between a position where it does not protrude from the front surface of the cover 20 when the contact 30 is closed and a position where it protrudes from the front surface of the cover 20 when the contact 30 is open. put it here,
When the contact 30 is closed, the handle 32 a
One end side in the longitudinal direction of 2b (the lower side in FIG. 7)
A gap is formed between the inner edge of the cover 20 and the handle 32 a can be operated through the window 22 of the cover 20.

The contact 30 of the branch circuit breaker 32 is a fixed contact 27a provided on a terminal plate 27 housed in the housing.
And a movable contact 28a provided on the movable contact 28 which is elastically deformed in response to the opening / closing operation of the handle 32a. Here, branch circuit breaker 3
A lock spring 29 for holding an electric wire (not shown) inserted into the container through the electric wire insertion port 36 with the terminal plate 27, a trip mechanism 48, and the like are also housed in the second container. . The terminal composed of the terminal plate 27 and the locking spring 29 described above allows the locking spring 29 to prevent the wire from coming off and to be connected only by inserting the wire into the body through the wire insertion opening 36. Therefore, they are called quick connection terminals. In addition, such an electric wire insertion port 36 is, as shown in FIG.
The self-standing circuit breaker 33 is also provided.

In this embodiment, when the contact 30 of the branch circuit breaker 32 is in the closed state, the handle 32
a is located at a position where it does not protrude from the front surface of the cover 20, it is possible to reduce the risk of the handle 32a being erroneously operated when the contact 30 of the branch circuit breaker 32 is in the closed state. It is possible to prevent the load connected to the load 32 from being burdened.

In this embodiment, as shown in FIGS. 1 to 3, both sides of the periphery of the window hole 22 in the front surface of the cover 20 in the direction orthogonal to the direction in which the branch circuit breakers 32 are arranged ( That is, the seal 24 provided with an indication for distinguishing the load (used load) connected to the branch circuit breaker 32 is attached to the upper and lower portions of the window hole 22. The seal 24 has two adjacent circuit breakers 32 in the juxtaposition direction.
Dividing line 24a for distinguishing two branch circuit breakers as one set
Is displayed on the seal 24 attached to the upper side of the window hole 22 so as to correspond to one of the two adjacent branch circuit breakers 32, and is attached to the lower side of the window hole 22. The seal is provided with the display corresponding to the other of the two adjacent branch circuit breakers 32, so that a sufficient place to display the used load of each branch circuit breaker 32 can be secured. , The display of the name of the used load, etc., can be easily viewed.
Can be further reduced.

The seal 24 includes a branch circuit breaker 32
Two branch circuit breakers 32 adjacent in the juxtaposition direction
Is provided with a mark 24b indicated by a line so as to distinguish one of the two as the one corresponding to the display, so that it is easy to determine which of the two branch circuit breakers 32 that the display corresponds to. can do.

In this embodiment, the twelve branch circuit breakers 32 are divided into two rows and the six branch circuit breakers 32 are arranged in each row.
When the number of branch circuit breakers 32 is increased without providing the base 40, the width of the gantry 40 in the left-right direction is increased, and the support pieces 41a, 41a at the left end of the gantry 40 are supported on the left side of the body 10. It may be mounted on the tables 14 a and 14 b and fixed to the body 10 using the mounting screws 42.
Further, since the above-mentioned through holes 19 are formed at equal intervals in the left-right direction at intervals corresponding to the width dimension of the branch circuit breakers 32 in the direction in which the branch circuit breakers 32 are juxtaposed, the wooden board mounting base 140 is required. If not, the number of branch circuit breakers 32 arranged in each row can be increased or decreased.

[0032]

According to the first aspect of the present invention, a body which is open on one side and a handle for opening and closing a contact inside the body are provided on a boss projecting from the front side of the body, and are mounted on the body. A main circuit breaker and a plurality of branch circuit breakers;
A cover coupled to the opening side of the body and having a window hole corresponding to the boss portion of the main circuit breaker and the branch circuit breaker; an even number of the branch circuit breakers are arranged side by side; A seal provided with an indication for distinguishing a use load of the branch circuit breaker is attached to a peripheral edge of the window hole on the front surface of the branch circuit breaker and on both sides in a direction orthogonal to a direction in which the branch circuit breakers are arranged. In the seal, a dividing line for distinguishing two branch circuit breakers adjacent to each other in the juxtaposition direction as one set is written, and the seal attached to one side in a direction orthogonal to the juxtaposition direction is attached to the seal. The display is provided corresponding to one of the two adjacent branch circuit breakers, and a seal attached to the other side in a direction orthogonal to the juxtaposition direction includes the two adjacent branch circuit breakers. The table above corresponds to the other Is provided, it is possible to secure a sufficient place to display the working load of each branch circuit breaker, and it is easy to see the display such as the name of the working load. There is an effect that the possibility of being operated by mistake can be reduced.

According to a second aspect of the present invention, in the first aspect of the invention, the seal has a line so as to distinguish one of the two adjacent branch circuit breakers in the juxtaposition direction as the one corresponding to the display. Is provided, there is an effect that it is possible to easily determine which of the two adjacent branch circuit breakers the display corresponds to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of an embodiment of the present invention.

FIG. 2 is a front view showing the appearance of the above.

FIG. 3 is an exploded perspective view showing the appearance of the above.

FIG. 4 is a sectional view of the same.

FIG. 5 is a front view showing a state where the cover is removed.

FIG. 6 is an exploded perspective view of a main part of the above.

FIG. 7 is a side view showing a state where a part of the body of the branch switching circuit breaker used in the above is removed.

FIG. 8 is a side view showing a state where a part of the body of the branch switching circuit breaker used in the above is removed.

[Explanation of symbols]

 1 Box 10 Body 20 Cover 21 Window Hole 22 Window Hole 24 Seal 24a Dividing Line 24b Mark 31 Main Circuit Breaker 31a Handle 31b Boss 32 Branch Circuit Breaker 32a Handle 32b Boss

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Susumu Hirowa 1048, Kazuma Kadoma, Kadoma, Osaka Prefecture Inside the Matsushita Electric Works, Ltd. (72) Inventor Yoshizo Kanehira 1048, Kazuma Kadoma, Kadoma, Osaka, Japan Matsushita Electric Works, Ltd. (72) Inventor Takanobu Tanaka 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside the Matsushita Electric Works Co., Ltd. (72) Inventor Hatsuo Mizuno 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside the Matsushita Electric Works Co., Ltd. (72) Takashi Kitamura Inside Matsushita Electric Works Co., Ltd. 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture (72) Inventor Mitsuru Mitsuda Inside Matsushita Electric Works Co., Ltd. 1048 Odaka Kadoma Kadoma City, Osaka Prefecture

Claims (2)

[Claims] 1. A main circuit breaker provided in a body having a body opened on one side and a handle for opening and closing a contact in the body provided on a boss protruding from a front side of the body, and a plurality of main circuit breakers mounted on the body. And a cover coupled to the opening side of the body and having a window hole corresponding to the boss of the main circuit breaker and the branch circuit breaker. A display for distinguishing the load used by the branch circuit breaker on both sides of the periphery of the window hole on the front surface of the cover and in a direction orthogonal to the direction in which the branch circuit breakers are arranged. A seal is attached to the seal, and on the seal, a dividing line for distinguishing two branch circuit breakers adjacent to each other in the juxtaposition direction as one set is written, and on one side in a direction orthogonal to the juxtaposition direction. On the sticker attached The display is provided corresponding to one of the two adjacent branch circuit breakers, and a seal attached to the other side in a direction orthogonal to the juxtaposition direction includes the two adjacent branch circuit breakers. A distribution board for residential use, characterized in that the display is provided corresponding to the other of the containers. 2. The seal is provided with a mark displayed by a line so as to distinguish one of the two adjacent branch circuit breakers in the juxtaposition direction as corresponding to the display. The residential distribution board according to claim 1, wherein