JP2003164022A - Distribution board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution board which can insert conductor bars into receiving blades of circuit breakers, and can stably connect and fix them. <P>SOLUTION: In the distribution board 1, insertion grooves 21 are disposed in the receiving blades 24 having a plurality of the long conducting bars 81-83 vertically provided on one side of a base 4 having a hooking part 66 in parallel, inserted and connected in the short direction, a part 23 to be hooked is formed on another side, and a plurality of the circuit breakers 2 disposed in the short direction of the conducting bars, are attached. The hooking part 66 and the part 23 to be hooked are formed at a position where the movement in the direction of the circuit breakers 2 upwardly shifting is prevented when the circuit breakers 2 are disposed in the base 4. An engaging member 9 for preventing the movement in the linear direction of the receiving blades 24 coming off the conducting bars in an attached state of the circuit breakers 2, turning from a lower part of the base 4 to a part 26 to be engaged formed on another side end faces of the circuit breakers 2 and held by the base 4, is provided at a position in the base 4 opposite to another side end faces of the circuit breakers 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board equipped with a plug-in type circuit breaker for inserting and connecting conductive bars.

[0002]

2. Description of the Related Art Conventionally, as a distribution board of this type, a plug-in type circuit breaker to be inserted into a conductive bar is simply inserted as it is into a conductive bar provided on a base side for mounting the circuit breaker. When connecting and disconnecting the circuit breaker, disconnect the circuit breaker as it is, for example, Japanese Patent Laid-Open No. 11-
What is disclosed as 69530 is known.

Further, the applicant of the present invention has a plurality of elongated conductive bars which are arranged in parallel in the vertical direction and which are intended to improve the workability of the above-mentioned insertion connection, and a bar mounting member which supports these conductive bars. A plurality of insertion grooves are formed on one side for arranging the receiving blades for inserting and connecting the conductive bar from the lateral direction, and a hooked portion is formed on the other side to arrange the plurality of conductive bars in the lateral direction. A residential distribution board 100 as shown in FIG. 7 is proposed, which includes a circuit breaker 101 and a base having a hook portion for hooking the hooked portion to which the circuit breaker 101 is attached. (Japanese Patent Laid-Open No. 2001-136611). In this case, the hooked portion and the hooked portion are engaged when the circuit breaker is moved in a linear direction in which the conductive bar is inserted into the receiving blade and the circuit breaker is arranged on the base, and the circuit breaker is displaced upward. It is formed at a position that prevents movement of the. Further, on the upper surface of the circuit breaker, a pressing member for locking the circuit breaker attached to the base is provided on the conductive bar or the bar mounting member, and the circuit breaker is locked by this pressing member. In this way, the receiving blade is prevented from moving away from the conductive bar with the circuit breaker attached.

[0004]

However, in the above-mentioned conventional residential distribution board 100, the wires to be connected to the other load terminal are from the rear wall of the distribution board to the front side. It is a method of pulling out to the inside of the distribution board and connecting to it, and no force is applied to the circuit breaker when the electric wire is pulled from outside the distribution board. However, in so-called non-residential distribution boards installed in buildings or factories, in many cases, the electric wires are drawn into the distribution boards from the side plates above or below the distribution boards. It Therefore, when the electric wire drawn into the distribution board is pulled from the outside with a strong force, this force is directly applied to the circuit breaker at the connection end, and the locking by the pressing member is released, so that the blade and the conductive bar There is concern that the plug-in connection may become unstable.

The present invention has been made in view of the above circumstances, and its object is to maintain the workability of the insertion connection between the receiving blade and the conductive bar and fix the circuit breaker in a stable state. It is to provide an electric board.

[0006]

To achieve the above object, in a distribution board according to the present invention, a plurality of elongated conductive bars arranged in parallel in the vertical direction and a conductive bar on one side are provided. A plurality of circuit breakers arranged in the short side direction of the conductive bar, the insertion groove for arranging the receiving blade for inserting and connecting in the short side direction, and the plurality of circuit breakers arranged in the short side direction of the conductive bar. In a distribution board having a base for attaching the circuit breaker having a hook portion for hooking the circuit breaker in a linear direction in which the conductive bar is inserted into the receiving blade, the hook portion and the hooked portion. Is formed at a position that engages when the circuit breaker is placed on the base and prevents the circuit breaker from moving in the direction in which the circuit breaker shifts upward, and the base has the other end side end surface of the circuit breaker. With the circuit breaker attached to the opposite position of the A locking member that prevents movement in a linear direction is provided, and the locking member is rotated toward the locked portion formed on the end surface from below the base after the circuit breaker is arranged on the base, It is characterized by being retained.

With this configuration, in the circuit breaker, the conductive bar is inserted into the insertion groove on one side of the circuit breaker, the hooked portion on the other side is hooked, and the movement of the circuit breaker in the direction of shifting upward from the base is prevented. Hold the locking member on the end side by rotating it from below the base to the locked part formed on the other end side end surface of the circuit breaker after the conductive bar is inserted and attached to the receiving blade. By making the engaging piece engage with the locked portion, the receiving blade is prevented from moving in a straight line away from the conductive bar with the circuit breaker attached.

The locking member is supported at one end by a supporting end swingably supported by the base, at the other end by an engaging piece for engaging the locked portion, and at a supporting end. It is preferable to use an elastic material having a held portion held by the base between the piece. In this case, one end of an elastic material having a supporting end on one end side and an engaging piece on the other end side is swingably supported on the base, and the held portion between the supporting end and the engaging piece is held on the base. Then, the movement of the circuit breaker is prevented by engaging the engagement piece on the other end side toward the locked portion.

When the elastic member is a linear spring bent with the supporting end as a starting end and a terminating end, and an engaging piece at an intermediate position of the linear spring is engaged with the engaged portion. Preferably, the circuit breaker is formed to press against the base. In this case, the supporting ends on one end side that are the starting end and the terminating end of the bent linear spring are swingably supported by the base,
Movement of the circuit breaker by engaging the engagement piece on the other end, which is the intermediate position, toward the locked portion, and holding the held portion between the support end and the engagement piece on the base. Is held elastically and blocked.

Further, the linear spring is bent and formed in a substantially U shape in a plan view, and the held portion is formed inside the U shape from the holding portion formed on the base between the supporting end and the held portion. It is preferable to provide a knob portion that is displaced toward and away from. In this case, the elastic member is bent and formed to have a substantially U shape in plan view, and one end of the elastic member is swingably supported by the base, and the engaging piece on the other end side is engaged toward the locked portion. The held part between the supporting end and the engaging piece held by the holding part formed on the base, and the knob part between the supporting end and the held part is directed to the U-shaped inside. It can be displaced and detached from the holding portion.

Further, it is preferable that the knob portion is formed by bending a part of the linear spring. In this case, the knob portion, which is bent so as to have a substantially U shape in plan view and whose one support end is supported by the base to be swingable, is a part of a linear spring and is elastically turned toward the U shape inside. By displacing, the held portion between the support end and the engaging piece can be separated from the holding portion.

Further, it is preferable that the base has a bearing portion for supporting the supporting end on the back side of the attachment surface of the circuit breaker. In this case, one end of the elastic material having a supporting end on one end side and an engaging piece on the other end side is swingably supported on the back side of the circuit breaker attachment surface of the base, and the engaging piece on the other end side is It is engaged toward the locked portion.

[0013]

DETAILED DESCRIPTION OF THE INVENTION FIGS.
5 shows a first embodiment corresponding to all the inventions, and
Shows a second embodiment corresponding to the invention of claim 6.

[First Embodiment] FIG. 1 shows a first embodiment of the present invention.
A side sectional view showing a schematic configuration of a distribution board of the first embodiment,
2 is a front view of the same distribution board with the protective plate removed, FIG.
FIG. 4 is a perspective view of a circuit breaker and a base of the same distribution board, and FIG. 4 is an explanatory view of a holding state of the circuit breaker of the distribution board.

The distribution board of this embodiment has a plurality of elongated conductive bars 81 to 83 arranged in parallel in the vertical direction, and a receptacle for connecting the conductive bars 81 to 83 to one side from the lateral direction. Blade 2
4 and the hooked portion 23 on the other side.
And a plurality of circuit breakers 2 arranged in the lateral direction of the conductive bars 81 to 83, and a hook portion 66 for hooking the hooked portion 23, and a base 4 for attaching the circuit breaker 2 thereto. In the distribution board 1 provided with, the hooking portion 66 and the hooked portion 23, the conductive blades 81 to 8 in the receiving blade 24.
When the circuit breaker 2 is moved in the linear direction in which the circuit breaker 3 is inserted and the circuit breaker 2 is arranged on the base 4, the circuit breaker 2 is engaged and is engaged
Is formed at a position to prevent the upward movement of the circuit breaker, and the base 4 receives the circuit breaker 2 at a position facing the other end side end face of the circuit breaker 2 with the circuit breaker 2 attached. Blade 2
4 is provided with a locking member 9 for preventing the linear bar 4 from moving away from the conductive bars 81 to 83.
After arranging the circuit breaker 2 in the above, the circuit breaker 2 is rotated from below the base 4 toward the locked portion 26 formed on the end face and is held by the base 4.

More specifically, the distribution board 1 is, for example, a building,
Alternatively, as shown in FIG. 2, a non-residential distribution board installed in a factory, which is composed of a box-shaped body 11 and a door body 16 which is openably and closably attached to an opening of the body 11. A main circuit breaker 3 and a plurality of branch circuit breakers 2, which are circuit breakers 2, are arranged at the bottom of 11, and the operating parts H of these circuit breakers 3, 2 are openable and closable inside the body 11. Window 15a of the protective plate 15 provided as
The inner unit support base 13 made of sheet metal is mounted on the fixed bases 12, 12 arranged side by side in the body 11 so as to be exposed to the outside from 15b.
And fixed base 14.

The circuit breakers 2 are arranged in two rows on the left and right at a substantially central position in the body 11 shown in FIG. 2, and twelve units are arranged side by side at predetermined intervals in each row. In this case, the three conductive bars 81 to 83 are arranged between the two left and right rows of the circuit breakers 2 so as to extend in the direction in which the circuit breakers 2 are arranged in parallel. This circuit breaker 2 has 2
As shown in FIG. 1, a pole opening / closing mechanism is built in, and one side corresponds to the conductive bars 81 to 83.
The lower three insertion grooves 21 are arranged vertically, and the upper insertion grooves 21 are
The height position of the position corresponds to the height position of the uppermost conductive bar 81 when it is arranged on the base 4.
1 corresponds to the height position of the leg piece of the conductive bar 82 or 83, and the lower insertion groove 21 is formed at the height position of the leg piece of the conductive bar 82 or 83, and on the other side, both sides Inverted L-shaped recess 2 whose side and bottom are open on the surface 2
2, and a hooked portion 23 having a convex fitting portion 23a formed by the lateral recess of the recess 22, and a recess having a predetermined depth to be the locked portion 26 below the branch wire insertion port 25 on the end face. A presser member 1 formed on the upper surface of one side for locking the circuit breaker 2 in a state of being attached to the base 4.
It is formed with two projecting pieces 27 corresponding to 0.

In this circuit breaker 2, as shown in FIG. 1, the circuit breaker connecting portion formed by the side edge of the conductive bar 81 of the neutral pole N is inserted into the upper insertion groove 21 and serves as a terminal connecting portion. The receiving blade 24 is arranged, and the conductive bar 8 of the voltage pole of L1 or L2 is provided in one of the insertion grooves 21 in either the middle stage or the lower stage.
The receiving blades 24 for inserting the circuit breaker connecting portions of Nos. 2 and 83 are provided, and the other is used as a storage portion in which the receiving blades are not provided.

FIG. 3 shows a base 4 for mounting the circuit breaker 2 on the bottom of the body 11 via the fixed base 12 and the fixed base 14. The base 4 has both side edges in FIG. One sheet metal substrate 5 bent upward, a long synthetic resin mount 6 arranged in the center of the substrate 5, and a long substrate fixed to the back side of the substrate 5. It consists of sheet metal bases 7, 7. In this case, the mounting base 6 is the conductive bars 81 to 8 arranged in the center of the substrate 5.
3 also serves as a fixing portion, and three conductive bars 81, 82,
83 is fixed via a fixing screw S.

As shown in FIG. 3, the substrate 5 has a central portion recessed in the direction of the body 11, and side pieces 52, 52 extending laterally from both sides of the central recess 51 are attached to both sides of a mounting base 6 which will be described later. In, the circuit breaker 2 is bent so that it can be mounted. A fixing hole for press-fitting and fixing the mounting base 6 is formed in the central recess 51 of the substrate 5, and a fixing screw (see FIG. 2) is inserted into the long holes 5a provided at both ends in the longitudinal direction. The substrate 5 is fixed to the bottom portion of the body 11 by (not shown).

The mounting base 6 is arranged in the central recess 51, and on the back surface thereof, the cylindrical portion 6 fitted in the fixing hole group.
The first group is projected, and the cylindrical portion 61 is positioned by fitting it into the fixing hole. Support posts 62 for supporting the conductive bar 81 of the neutral pole N are integrally provided at the center of the mount 6 so as to project at both upper and lower ends in FIG.

Further, the flat portions on both sides of the central portion connecting between the support posts 62 at the upper and lower ends serve as the disposition portion for disposing the conductive bars 82.83 of the voltage poles of L1 and L2. Further, among the leg pieces integrally formed from the conductive bars 82, 83 between the support posts 62, 62, the supporting rib 63 of the leg piece 82a located at a higher position in the circuit breaker connection portion and the leg piece 8 are provided.
Ribs 6 along the base of 2a and the lower leg piece 83a
4 and 4 are projected.

As shown in FIG.
As shown in FIG. 2, positioning protrusions 65, 65 for positioning by sandwiching both side surfaces of the body of the circuit breaker 2,
It is inserted from the lower surface opening of the above-mentioned recess 22 into the lower part of both side surfaces on the other side of the body opposite to the one side on which the terminal connecting portion is provided, and is constituted by a horizontal piece by the movement of the circuit breaker 2. Inversely L-shaped projections of the hook portion 66 are integrally provided so as to correspond to the number of circuit breakers to be arranged. Also, the hook portion 66
Is inserted into the hooked portion 23 formed in the recess 22,
A recessed fitting portion 66a is formed on the bottom of the hooked portion 23 for fitting and hooking the protruding fitting portion 23a.

The base 7 supports a locking member 9 to be described later so as to be rotatable toward a locked portion 26 formed on the end surface of the circuit breaker 2, and at the base 4, the board 5 and the mounting base. A support base for supporting 6 is constructed. In this base 7, a standing piece 72 and a fixing piece 73 are formed by bending a flat plate-like supporting piece 71 downward in FIG. 1, and serve as a bearing portion of the locking member 9 below the standing piece 72. The support portions 74, 74 are formed in a notched and curved shape with a predetermined width, and the tongue-shaped holding portions 75 on both sides of the support piece 71 are extended above the support portion 74 at the predetermined intervals. The bases 7 are fixedly arranged on both sides of the substrate 5.

The locking member 9 prevents the receiving blade 24 from moving in a straight line away from the conductive bars 81 to 83 in a state where the circuit breaker 2 is attached to the base 4, and in this case, one end side. A support end 92 swingably supported by the base 7 of the base 4 having the above-described configuration, and a U-shaped predetermined width so as to engage with a recess of a predetermined depth which becomes the locked portion 26 on the other end side. Between the two engaging pieces 94 that are bent, and between the support end 92 and the engaging piece 94, the substantially linear held portions 93, 93 held by the holding portion 75 of the base 7, and A linear spring 91 having a knob portion 95 and bent with the supporting end 92 as a starting end and a terminating end.
It is formed in. That is, one locking member 9 is arranged for the two circuit breakers 2 arranged at a predetermined interval, and the linearly held portion 93 is removed from the holding portion 75 by the knob portion 95. The engagement pieces 94 can be easily disengaged from the locked portions 26 of the two circuit breakers 2 by displacing inwardly. Further, as shown in FIG. 1, this knob portion 95 is formed by bending a part of the linear spring 91 to the front side with a predetermined width in a mounted state on the base 7, and the operability of the locking member 9 is improved. Is improved with a simple configuration.

The linear spring 91 has the support portions 74 and 74 provided on the standing piece 72 of the base 7 support the support ends 92 and 92, respectively, and is an intermediate position between the support ends 92 and 92. The engaging piece 94 or the knob portion 95 is dimensioned and formed so as to press the circuit breaker 2 against the base 4 when the piece 94 is engaged with the locked portion 26. Therefore, the engaging piece 94, which is an intermediate position of the linear spring 91 whose support ends 92, 92 are swingably supported by the base 4, is engaged with the engaged portion 26, and the retained portions 93, 93 are engaged. Is held by the base 4, the movement of the circuit breaker 2 is elastically held and prevented, and the electric wire inserted and connected to the branch electric wire insertion port 25 on the end face of the circuit breaker 2 is pulled from the outside of the distribution board 1, for example. Even if a force is applied to the circuit breaker 2 at the time, the original state can be naturally restored.

The conductive bars 82 and 83 are formed in the same shape and are arranged symmetrically, and both ends are provided with insertion holes (not shown) through which the fixing screws S are inserted.
The fixing screw S is inserted into the central recess 5 of the substrate 5 through the insertion hole.
It is adapted to be firmly held by being fastened to a nut arranged on the back surface of 1.

The conductive bars 82 and 83 are bent at their bases at regular intervals so as to correspond to the number of arranged circuit breakers 2 from the side edge which is the inner side when arranged, and the upper ends of the bases are bent. From the one side, the leg pieces 82a, 83a are horizontally extended further outward, and the upper ends of the bases adjacent to the leg pieces 82a, 83a are bent in an inverted L shape so as to face inward. Horizontal pieces 82b and 83b, which are extension pieces, are formed. And the leg piece 82
a and 83a and the horizontal pieces 82b and 83b constitute a circuit breaker connection portion which is inserted and connected to the insertion groove 21 which is a voltage electrode terminal connection portion provided on one side of the circuit breaker 2. It should be noted that the conductive bars 82 and 83 are arranged and fixed to respective arrangement portions on the substrate 5 before the base 4 is arranged on the body 11. In addition, the mounting base 6 includes conductive bars 82 and 83.
Is placed on the substrate 5 and then placed in the central recess 51.

In this structure, on the upper surface of the conductive bar 81 bridged between the support posts 62 described above, the elastic projecting piece 10 facing the upper surface of the circuit breaker 2 arranged on both sides.
The pressing member 10 (see FIG. 1) having the number 1 is attached. The pressing member 10 is made of a synthetic resin molded product and corresponds to the three circuit breakers 2 on each side, and four sets are arranged on the conductive bar 81. As shown in FIG. 3, each holding member 10 integrally holds the support bases 103 placed on the upper surface of the conductive bar 81 on both sides of the lower surface, and the conductive bar 81 is provided between the support bases 103. Cylindrical protrusions (not shown) that are press-fitted into the corresponding circular holes are integrally provided on the lower surface at two predetermined intervals, and each support 103
Between the protrusions adjacent to each other, and between the protrusions, three elastic projecting pieces 101 each having one end supported by a connecting piece so as to be swingable are integrally formed on both sides. And the conductive bar 81
When attached to, the tip ends of the respective elastic projection pieces 101 project so as to face the upper surface of the inside position of the circuit breaker 2 arranged at the regular position, and both ends of each of the tip parts are protruded. 2 installed side by side on the upper surface inside the circuit breaker 2
An engaging portion 102 engaging with one of the projecting pieces 27 is formed so as to project laterally.

The fixed base 14 is formed by fixing both ends of the bases 7, 7, that is, the fixing portions 76, 76 which are vertically projected in FIG. 2 from the fixing pieces 73, by fixing screws (not shown). The base 4 on which the circuit breaker 2 is arranged is installed in the body 11. In this case, the main circuit breaker 3 is disposed above the fixed base 14 on the plate-shaped inner unit support base 13 in advance by screw fixing.

In the distribution board 1 described above, when the circuit breaker 2 is fixed to the base 4, the pair of protrusions 65 on the mount 6 at the position where the circuit breaker 2 is desired to be arranged are first described.
While fitting the lower part of the body on one side of the insertion groove 21 between 65, fit the hook part 66 into the recess 22 from the lower opening of the recess 22 on both side surfaces of the body on the other side, and then move in the linear direction. Then, as shown in FIG. 4A, it is placed on the mount 6.
At this time, the circuit breaker connecting portion which is the side edge of the conductive bar 81 of the neutral pole N is inserted into the insertion groove 21 to face the opening of the receiving blade 24, and the voltage pole of L1 or L2 is inserted into the insertion groove 21 of the middle stage. Of the conductive bar 82 or 83 of the conductive bar 82 of the voltage pole of L2 or L1 is further exposed in the lower insertion groove 21.
Alternatively, the leg pieces 83 face each other, and the respective leg pieces face and are inserted into the receiving blade 24 arranged in the insertion groove 21 in the figure. In addition, the hooking portion 66 hooks the hooked portion 23 in the recess 22, and the two protruding pieces 27 formed on the upper surface of the circuit breaker 2 are provided at the tip of the corresponding elastic protruding piece 101 of the pressing member 10. Face.

After that, the insertion groove 2 on one side of the circuit breaker 2
1, the conductive bars 81 to 83 are inserted, and the hooked portion 23 on the other side is hooked by the hooking portion 66 and is prevented from moving in the direction of being displaced upward from the base.
2 to 83 of the linear springs 9 to 83, and in this state, as shown in FIG.
1 (locking member) is rotated from below the base 4 toward the locked portion 26 formed on the other end side end surface of the circuit breaker 2,
As shown in FIG. 1, it is held on the base 4, and the engaging piece 94 is engaged with the locked portion 26. In this way, the circuit breaker 2 can be easily attached and electrically connected to the base 4 in the distribution board 1, and the receiving blade 24 is connected to the conductive bar 81 with the circuit breaker 2 attached. It is prevented from moving in a straight line away from ~ 83.

As described above, the conductive bar 81 is attached to the receiving blade 24.
When the circuit breaker 2 arranged on the base 4 is removed after the insertion of ~ 83 into the base 4 and the attachment, the support ends 92, 92 at one end are bent and formed to have a substantially U shape in plan view. 4, a holding portion 75 that is engaged with the engaging piece 94 on the other end side of the linear spring 91, which is an elastic material that is swingably supported, toward the locked portion 26, and that is formed on the base 4. The linear held portion 9 between the support end 92 and the engaging piece 94 held by the
3, the knob portion 95 is displaced toward the inside of the U-shape so as to be disengaged from the holding portion 75, and thereafter, the hook portion 66 of the tip portion.
Is separated from the hooked portion 23 of the circuit breaker 2. As a result, the circuit breaker 2 can be moved in the tripping direction, and if the circuit breaker 2 is linearly moved in the tripping direction in this state, the hooked portion 23 and the hooking portion 66 can be fitted in an uneven manner. The circuit breaker 2 can be removed by moving the circuit breaker 2 until the hook portion 66 moves above the lower surface opening position of the recess 22 and then lifting it upward.

Therefore, according to the distribution board 1 described above, in the circuit breaker 2, the conductive bars 81 to 83 are inserted into the insertion groove 21 on one side and the hooked portion 23 on the other side is hooked to the base. 4 from the lower side of the base 4 after being prevented from moving in the direction of being displaced upward, and at the other end side, the linear spring 91 (locking member 9) is attached by inserting the conductive bars 81 to 83 into the receiving blade 24. By rotating toward the locked portion 26 formed on the other end side end surface of the circuit breaker 2 to hold it on the base 4, and by engaging the engagement piece 94 with the locked portion 26. , The receiving blade 24 is prevented from moving in the straight line direction away from the conductive bars 81 to 83 in the state where the circuit breaker 2 is attached.
Circuit breaker 2 while maintaining workability of plug-in connection with 83
Can be fixed in a stable state.

Then, one end of an elastic material having a supporting end 92 on one end side and an engaging piece 94 on the other end side is swingably supported by the base 4, and a space between the supporting end 92 and the engaging piece 94 is provided. Since the held portion 93 is held by the base 4 and the engagement piece 94 on the other end side is engaged toward the locked portion 26, the movement of the circuit breaker 2 is blocked. (1) Even if the electric wire inserted and connected to the branch electric wire insertion port 25 on the end face of the circuit breaker 2 is pulled from the outside and a force is applied to the circuit breaker 2, the original state can be naturally restored. In addition, the support ends 92, 92 on one end side that are the start end and the end of the bent linear spring 91 are swingably supported by the base 4, and the engagement piece 94 on the other end that is an intermediate position thereof is covered. The linear held portion 93 between the support end 92 and the engaging piece 94 is held by the base 4 by being engaged toward the locking portion 26, whereby the movement of the circuit breaker 2 is elastically held. Since it is blocked, it becomes easy to hold the locking member 9 on the base 4 or to remove it from the base 4.

Further, the linear spring 91, which is bent and formed to have a substantially U shape in a plan view, and whose supporting ends 92, 92 at one end are elastic members supported by the base 4 swingably, engages with the other end of the linear spring 91. Piece 9
4 is engaged with the locked portion 26, and the support end 92 and the engagement piece 9 held by the holding portion 75 formed on the base 4 are engaged.
4, the held portion 93 between the support end 92 and the held portion 93.
Since the knob portion 95 between and is displaceable from the holding portion 75 by displacing it toward the U-shaped inside, the knob portion 9 which is excellent in operability and which is a part of the linear spring 91 is provided.
5 is elastically displaced toward the inside of the U-shape so that the support end 92
Since the held portion 93 between the engaging piece 94 and the engaging piece 94 can be disengaged from the holding portion 75, the knob portion 95 can be easily formed, the locking member 9 can be formed at low cost, and the usability is high. It is good.

[Second Embodiment] FIG. 5 is a side sectional view showing a schematic structure of a distribution board according to a second embodiment. FIG. 6 shows a locking state of locking members of the distribution board. The figure shows (a) a front view of the other side of the circuit breaker, (b) a plan view, and (c) a side view.

The distribution board of this embodiment is different from that of the first embodiment only in the structure of the locking member, and the other constituent members are the same as those in the first embodiment. In the distribution board 1, the base 4 has a bearing portion that supports the support end 92 on the back side of the attachment surface of the circuit breaker 2.

That is, the substrate 5 and the mounting base 6 of this one
The base 7 that forms the support base of the base 4 that supports the base 4 is rotatable so that the locking member 9 is directed toward the locked portion 26 formed on the end surface of the circuit breaker 2 in order to enhance its aesthetic appearance. In this way, the support portions 74, 74, which are notched and curved with a predetermined width, are projected to the back side of the flat plate-like support piece 71. In addition, in this base 7, a fixing piece 73 for fixing the base 4 to the fixed base 14 is bent in a U-shape in a side view of the base 7 so as to face the center side of the body 11 to cut off the circuit. The electric wire storage space connected to the load terminal of the container 2 is made wider.

In this base 7, the holding portion 75 which holds the locking member 9 after the locking member 9 is locked to the locked portion 26 formed on the end surface of the circuit breaker 2 is shown in FIG. ), The linear spring 9 is provided at both ends of the notch 77 having a substantially T shape in a plan view, and therefore serves as a locking member for this notch 77.
1 is arranged so that it can rotate along the notch 77 and can be held, and thus is supported more conveniently.

The linear spring 91 of this one is, as shown in FIG. 6 (b), a linear portion to be held, starting from a supporting end 92 on one end side which is swingably supported by the base 7 having the above-mentioned structure. 93 rises in an L shape in a side view, and the locked portion 2 on the other end side
6 toward the two engaging pieces 94 bent in a U-shape with a predetermined width so as to be engaged with 6, the oblique knob portion 95 in FIG.
And is formed by a linear spring 91 bent with the support end 92 as a start end and an end. That is, one linear spring 91 is arranged for the two circuit breakers 2 arranged at a predetermined interval, and the knob portion 95 is provided.
Thus, the held portion 93 can be displaced from the holding portion 75 toward the U-shaped inside, and the engaging piece 94 can be disengaged from the locked portions 26 of the two circuit breakers 2.

This linear spring 91 also supports the support piece 71 of the base 7.
When the support ends 92, 92 are respectively supported by the rear side support parts 74, 74 and the engaging piece 94, which is an intermediate position between the support ends 92, 92, is engaged with the locked part 26, the circuit breaker 2 The engaging piece 94 or the knob portion 95 is dimensioned and formed so as to press against the base 4. Therefore, the engaging piece 94, which is an intermediate position of the linear spring 91 whose support ends 92, 92 are swingably supported by the base 4, is engaged with the engaged portion 26, and the retained portions 93, 93 are engaged. Is held by the base 4, the movement of the circuit breaker 2 is elastically held and prevented, and the electric wire inserted and connected to the branch electric wire insertion port 25 on the end face of the circuit breaker 2 is pulled from the outside of the distribution board 1, for example. Even if a force is applied to the circuit breaker 2 at the time, the original state can be naturally restored.

Therefore, according to the distribution board 1 described above, one end of the elastic material having the supporting ends 92, 92 on one end side and the engaging piece 94 on the other end side has the base 4 at the rear surface of the circuit breaker 2 mounting surface. Since it is swingably supported on one side and the engagement piece 94 on the other end side is engaged toward the locked portion 26, it is excellent in appearance.

[0044]

The present invention is implemented as described above, and in the distribution board according to claim 1, the circuit breaker has the conductive bar inserted in the insertion groove on one side and the circuit breaker on the other side. The hooked portion is prevented from moving upward from the base, and the locking member at the other end is attached, and after the conductive bar is inserted into the receiving blade and attached, the circuit breaker from below the base is removed. A state in which the circuit breaker is attached by rotating toward the locked portion formed on the end face to hold it on the base and by engaging the engaging piece with the locked portion. Since the receiving blade is prevented from moving in the straight line direction away from the conductive bar, the workability of the insertion connection between the receiving blade and the conductive bar can be maintained and the circuit breaker can be fixed in a stable state.

Further, in the distribution board according to claim 2,
For example, even if the electric wire inserted and connected to the branch electric wire insertion port on the end face of the circuit breaker is pulled from the outside of the distribution board and a force is applied to the circuit breaker, the original state can be naturally restored.

Further, in the distribution board according to claim 3,
It becomes easy to hold the locking member on the base or to separate it from the base.

Further, the distribution board according to the fourth aspect is excellent in operability.

Further, in the distribution board according to claim 5,
The knob portion can be easily formed to form the locking member at low cost, and the usability is good.

Further, the distribution board according to claim 6 is excellent in appearance.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a distribution board according to a first embodiment of the present invention.

FIG. 2 is a front view of the same distribution board with a protective plate removed.

FIG. 3 is a perspective view of a circuit breaker and a base of the distribution board.

FIG. 4 is an explanatory view of a holding state of a circuit breaker of the distribution board.

FIG. 5 is a side sectional view showing a schematic configuration of a distribution board according to a second embodiment.

FIG. 6 shows a locked state of a locking member of the distribution board, (a)
Is a front view of the other side of the circuit breaker, (b) is a plan view, (c)
Is a side view.

FIG. 7 is a front view showing a distribution board that is a conventional example of the present invention with a lid removed.

[Explanation of symbols]

1 distribution board 2 circuit breakers 21 Insertion groove 23 Hooked part 24 receiving edge 26 Locked part 4 base 5 substrates 6 mounting base 66 Hook 7 base 75 Holder 81, 82, 83 Conductive bar 9 Locking member 91 linear spring 92 Support end 93 Held part 94 engagement piece 95 knob

Claims (6)

[Claims] 1. A plurality of elongated conductive bars arranged in parallel in the vertical direction, an insertion groove for arranging a receiving blade for inserting and connecting the conductive bar in the lateral direction on one side, and a cover on the other side. A power distribution device including a plurality of circuit breakers each having a hooking portion and arranged in the lateral direction of the conductive bar, and a base having a hooking portion for hooking the hooked portion to which the circuit breaker is attached. In the board, the hooked portion and the hooked portion are engaged when the circuit breaker is moved in a linear direction in which the conductive bar is inserted into the receiving blade and the circuit breaker is arranged on the base, and the circuit breaker shifts to the upper side. A straight line that is formed at a position that prevents movement in the direction and at the position facing the other end side end surface of the circuit breaker on the base, with the receiving blade removed from the conductive bar with the circuit breaker attached. A locking member that prevents movement in the direction is provided, and the locking member is attached to the base. Panelboard, characterized in that none to be held from the base below the base pivots toward a locking portion formed on the end surface after placing the road breaker. 2. The engagement member includes a support end on one end side that is swingably supported by the base, an engagement piece that engages with the engaged portion on the other end side, and an engagement with the support end. The elastic material having a held portion held by the base between the piece and the piece.
The listed distribution board. 3. The elastic member is a linear spring bent with the supporting end as a starting end and a terminating end, and an engaging piece at an intermediate position of the linear spring is engaged with the locked portion. The distribution board according to claim 2, wherein the circuit breaker is formed so as to be pressed against the base. 4. The linear spring is bent and formed in a substantially U-shape in a plan view, and a holding portion formed in the base between the supporting end and the holding portion is a U-shaped inside from the holding portion. The distribution board according to claim 3, further comprising a knob portion that is displaced toward and away from the switch. 5. The distribution board according to claim 4, wherein the knob portion is formed by bending a part of the linear spring. 6. The power distribution unit according to claim 3, wherein the base has a bearing portion that supports the support end on a rear surface side of an attachment surface of the circuit breaker. Board.