JP5875060B2 - Distribution board - Google Patents

Description

The present invention relates to a distribution board in a house, a store, or the like, and more particularly, to a structure of a cover constituting a cabinet of the distribution board.

The distribution board incorporates internal equipment such as a main switch, a bus connected to the secondary side of the main switch, and a branch switch connected to the bus in the cabinet. It is used as a service entrance device for electric circuits. The electric circuit to be applied is usually an electric circuit to which an AC 50 Hz or 60 Hz single-phase two-wire electric circuit (100 V) or a single-phase three-wire electric circuit (100/200 V) is applied.

The cabinet constitutes the outline of the distribution board, and generally, a case that attaches and fixes an insole for mounting the internal device and forms a wall that covers the upper, lower, left, and right sides and the back of the distribution board; And a cover provided on the front side of the case so as to cover the front side facing the operation side of the internal device (for example, see Patent Document 2 FIG. 4).

Further, some distribution boards are provided with a door provided on the front side of the cover so as to cover the front surface of the cover and supported by a hinge on the case, the cover or the like so as to be opened and closed. There is (for example, Patent Document 1 FIG. 3). As described above, the distribution boards are roughly classified into those having a door and those having no door.

A distribution board with a door is supported by a cover with the hinge portion as a rotation center. In order to prevent the door from rotating when the door is closed, the door and the cover are provided with a push latch and a striker facing each other so that the door is engaged when the door is closed. . The striker is provided in the vicinity of the end in the radial direction when the door is rotated, that is, in the vicinity of the peripheral edge away from the hinge portion of the door.

For example, when the push latch and striker are engaged and the vicinity of the peripheral edge of the door is pressed with a hand or the like, the push latch mechanism is once pushed into the push latch from its original position, and the door moves in the direction of the cover. To do. When the mechanism is pushed to a predetermined position, the latch and the striker are disengaged. When the door is stopped and the hand is released in this state, the door is pushed back in the direction away from the cover due to the repulsive force of the mechanism to return to the original position, and the latch and the striker are disengaged. Lifts a little from the cover. Then, it is possible to open the door with the hinge as the rotation center by placing the hand on the door and pulling it up to the front side.

There are cases where the distribution board is installed in a storage space provided in advance, such as in a closet or artificial furniture, or in a location where no storage space is provided, such as a kitchen, entrance, or toilet. In particular, in an apartment house such as a condominium, the installation location is often determined for each individual residence at the construction site of the distribution board. For this reason, when a distribution board previously ordered by a contractor or the like is changed from a distribution board with a door to a distribution board without a door at the construction site, or a distribution board without a door. In some cases, a switch from a panel to a distribution board with doors may occur, and for parts of the distribution panel that needed to be changed at the construction site, procurement of the missing parts was performed again.

JP-A-9-271112 JP 2006-81307 A

The door of the distribution board is fixed integrally to the case, the cover, etc. with a hinge in advance. Also, the cover is equipped with a push latch and the door is equipped with a striker. When changing from a doorless type to a door type, remove the cover already installed on the distribution board. In addition, it was necessary to replace the cover with the door. In addition, when changing from a door type to a doorless type, it is necessary to remove the cover with the door already attached to the distribution board and replace the cover with the cover without the door. there were.

As described above, the type of distribution board to be actually constructed (with / without door) may be finally determined at the construction site. For this reason, the contractor had to procure a distribution board cover and a cover with a door according to the actual installation type at the construction site. Parts to be procured are separately provided by manufacturers as replacement parts, but it takes time to reorder the manufacturers for procurement of parts, and labor related to recombination occurs. Costs were incurred.

Moreover, the cover once removed and the cover with the door were not reused due to the difference in the types of internal devices and the number of circuits, and were discarded. Along with this, the environmental load related to disposal of parts to be disposed of has increased.

Therefore, the present invention has been made in view of the above problems, and a push latch and striker mounting structure which is attached to a door and cover of a distribution board and is attached to prevent the door from rotating, is provided from the cover. By adopting a structure that allows the striker to be easily removed / attached, the doorless type cover and the door type cover can be shared, reducing the recombination effort at the distribution panel construction site, and removing the striker. It is an object of the present invention to provide a distribution board that has a good appearance and can reduce the number of parts to be discarded.

The structure of the distribution board according to the present invention is configured to solve the above-described problems, and includes a case that houses an internal device and a cover that is combined with the front side of the case so that the internal device can be operated. A stepped portion formed by providing a step with a peripheral portion on a part of the front side of the cover, and a downward direction in a state where the distribution board is attached to the stepped portion. By providing a slitter member formed by projecting a striker in a vertical direction with respect to a flat plate provided in a size that can be inserted into the slit, by inserting and attaching from below the slit, the striker with attached in a state of projecting in the front direction, the amount of projection of the rear side of the striker member of the step portion and the plate thickness of about the plate, remove the striker member In the state, the front side of the cover, so that the slit is unexpected face, it may be configured as further comprising a striker member detachably on the cover.

According to such a configuration, the step portion formed by providing a peripheral portion and a step on a part of the front side of the cover is provided with a slit that opens in a downward direction when the distribution board is attached. The member can be inserted and attached from below the slit, and when the striker is removed, the slit is disposed so as not to face the front side of the cover. For this reason, the striker can be mounted / removably attached to the cover, and even when the striker is removed from the cover, the cover can be configured so that the slit that becomes the striker mounting portion is not visible from the front side. When the cover is changed from a cover without a door to the cover without a door, or when the cover without a door is changed to a cover with a door, the change can be easily performed and the cover can be shared.

When changing from a door type cover to a doorless type cover, it is necessary to dispose of the door part. When changing from a doorless type cover to a door type cover, the door part needs to be procured. However, compared to replacing the entire cover, the amount of parts to be discarded and the weight of parts to be procured are substantially halved, so that the number of parts to be discarded can be reduced and the disposal process Environmental load can be reduced.

In the distribution board structure according to the present invention, the stepped portion is provided by forming the cover in a recessed portion near the lower periphery of the cover, and the slit is provided at a plurality of positions in the stepped portion. May be.

According to this configuration, since the slit can be formed in the recessed portion from the front side of the cover, it is possible to suppress the striker of the striker member attached to the cover side from protruding to the front side of the cover, and the striker is removed. Sometimes the slit can be made inconspicuous. In addition, since the slits are provided at a plurality of locations, the number of internal devices of the distribution board is increased, and even when the cabinet is enlarged, the door can be securely held and the plurality of slits can be used. The distribution board can function as a vent inside and outside the cabinet.

In the distribution board structure according to the present invention, the striker member is further provided with a protruding portion protruding in the front direction, and the protruding portion is in contact with the surface of the stepped portion where the slit is formed. It may be configured as a feature.

According to such a configuration, for example, when the door is closed and the push latch and the striker are engaged and the door is opened to pull the door toward the near side, a strong force is applied to the striker portion. Although the striker member is pulled to the front side, the protruding portion provided so as to protrude in the front direction of the striker member is in contact with the surface of the stepped portion where the slit is formed. It can be brought into contact with the portion to serve as a detent and can hold the latched state and prevent damage such as deformation of the striker member.

Moreover, the structure of the distribution board according to the present invention may be characterized in that a concealing portion for concealing a portion where the striker member protrudes on the back side of the cover is provided on the back side of the cover.

According to such a configuration, as described above, when the striker member is pulled to the front side, the portion protruding on the back side of the cover abuts on the concealing portion and serves as a detent, In combination, the striker member can be more securely prevented from being damaged, such as deformation. In addition, on the back side of the cover, an electric wire to be wired when using the distribution board is located near the place where the striker member is disposed. It is assumed that the cover of the electric wire is damaged by the protrusions on the back side of the cover, or conversely, the protrusion is damaged by the electric wires. However, by providing the concealing portion, such damage or the like is not caused. can do.

As described above, according to the present invention, it is possible to share the doorless type cover and the door type cover in the distribution board, reducing the recombination effort at the construction site of the distribution board, and also being disposed of. The distribution board which can reduce components can be provided.

The perspective view seen from the front side of the distribution board which shows 1st Embodiment is shown. The perspective view from the front side of the state which closed the door which concerns on the embodiment is shown. The perspective view from the case front side which concerns on the embodiment is shown. The perspective view from the case inner back side which concerns on the embodiment is shown. The principal part enlarged view of the case inner back side which concerns on the embodiment is shown. The principal part enlarged view of the case inner back side which concerns on the embodiment is shown. The principal part enlarged view of the case front side which concerns on the same embodiment is shown. The perspective view from the case inner back side which concerns on the embodiment is shown. Sectional drawing seen from the case front side of the state which removed the door which concerns on the embodiment is shown. The figure showing the facing state of the door and case which concern on the embodiment is shown. The perspective view from the case front side of the distribution board which shows 2nd Embodiment is shown. The perspective view from the case inner back side which concerns on the embodiment is shown. The perspective view of the case inner back side which concerns on the embodiment is shown. The perspective view of the case front side which concerns on the embodiment is shown. The figure showing the conventional distribution board is shown. The figure showing the conventional distribution board is shown.

Next, an embodiment of the present invention will be described in detail with reference to FIGS.

(First embodiment)
The distribution board 100 according to the first embodiment is used for a single-phase three-wire commercial electric circuit. The distribution board includes a current limiter 101, a main switch 102, a bus connected via a connecting member on the secondary side of the main switch 102, and a branch switch connected to the bus in the cabinet. The internal device such as the container 103 is accommodated, and these internal devices are attached to the insole and fixed to the cabinet.

The cabinet constitutes an outline of the distribution board 100. The cabinet includes a case 110 that is fixedly attached to an inner bottom for mounting the internal device and forms a wall that covers the upper, lower, left, and right side surfaces and the rear surface of the distribution board, and the front side facing the operation surface side of the internal device. 110 and a cover 120 provided on the front side. In addition, the distribution board having the door 130 is provided on the front side of the cover 120 so that it can be opened and closed with a hinge structure so as to cover the front side of the cover 120 with the door 130 closed. Door 130 is provided. FIG. 1 shows a distribution board 100 with the door 130 opened as a door-type distribution board, and FIG. 2 shows the distribution board 100 with the door 130 closed.

The door 130 is attached to the periphery of the cover 120 through a hinge structure 1300 that faces the distribution board 100 and is spaced apart in the left-right direction. More specifically, one end of the hinge structure part that is integrally attached to the door 130 in advance is attached to the hinge attachment part 121 provided on the cover 120 side by screw tightening from the back side of the cover. The door can be opened and closed with the hinge structure 1300 as the center of rotation.

FIG. 3 shows the cover 120 with the door 130 attached. A push latch 133 is embedded and fixed to the inner side surface of the door near the end in the radial direction when the door 130 is rotated, that is, near the peripheral edge away from the hinge structure portion 1300 of the door. The push latch 133 is fixed to the door so that the latching direction is provided on the tangent line in the arc formed by the rotation trajectory of the door and toward the door.

Further, the cover 120 is provided with a stepped portion 124 formed by forming a recess with a peripheral step on a part of the front side of the cover. FIG. 4 is a perspective view of the cover as viewed from the back side, and FIG. 5 is an enlarged view of the vicinity of the step portion 124. The stepped portion 124 is provided with a slit 1214 that opens in a downward direction when the distribution board 100 is attached. In the present embodiment, a plurality of slits 1214 are provided apart from each other in the left-right direction.

As shown in FIG. 10, the stepped portion 124 is provided with a striker member 123 that is disposed facing the push latch 133 in a state where the door 130 is closed, and that forms strikers that engage with each other. FIG. 6 and FIG. 7 show an enlarged view from the back side of the cover and an enlarged view from the front side of the cover, respectively. The striker member 123 is formed from the base portion 1231 formed in a flat plate shape. The striker 1232 is provided with a mushroom-shaped protrusion that protrudes in the vertical direction and serves as a latch at the tip.

When the door 130 is closed, the striker 1232 is engaged with the push latch 133 so that the door 130 is held closed with respect to the cover 120. Further, the striker member 123 is provided at a substantially central portion on the left and right sides on the front side of the stepped portion 124. Coupled with the hinge structure provided separately on the left and right sides of the cover 120, the door is stably held in an inverted triangular shape by supporting three points.

Next, a description will be given of when the striker member 123 is removed / attached to the cover 120. 4 and 5 show a state where the striker member 123 is attached, and FIGS. 6 to 9 show a state where the striker member 123 is removed. First, the case where the striker member 123 is removed will be described. 4 and 5, the screw fixing the striker member 123 to the cover 120 is removed from the back side of the cover. Then, as shown in FIGS. 6 and 7, the removal is completed by extracting the striker member 123 from the slit 1214 below the cover 120.

Next, the case where the striker member 123 is attached to the cover 120 will be described. As shown in FIGS. 6 and 7, the striker member 123 is inserted into the slit 1214 from below the cover 120, and the hole 1215 provided in the cover and the screw penetration provided in the striker member 123 are reversed. The attachment is completed by tightening a screw in the hole 1215 from the back side of the cover 120 with the position of the hole 1233 aligned.

Thus, the removal / attachment of the striker member 123 can be easily performed with one screw, and is changed from a door-equipped distribution board to a doorless distribution board at the construction site of the distribution board. In this case, the door 130 and the striker member 123 can be easily removed without procuring parts. In addition, when changing from a doorless type distribution board to a door type distribution board, it is necessary to procure the door 130 part and the striker member 123. 130 and the striker member 123 can be attached.

In addition, a striker member support portion 1216 formed by a rib is provided on the back side of the cover, and functions as a guide when the striker member 123 is inserted from the slit 1214 and positioning to the cover side, and covers the striker member. It functions as a fixed base when screwing and fixing. Combined with the boss forming the hole 1215, when the door is pulled in the closed state or when the door 130 is opened, the vicinity of the push latch provided in the door 130 is once pressed to the cover 120 side. In this case, when the door 130 is closed and pressed against the cover 120 side, the striker member 123 receives the force applied to the striker member 123, and the bosses in the hole portion prevent the striker member 123 from wobbling. , Stable opening and closing operations can be performed.

As shown in FIGS. 3 and 9, in the cover 120 with the door 130 and the striker member 123 attached, and the cover 120 with the door 130 and the striker member 123 removed, particularly in the step portion 124. When viewed from the front side, there is no visual change other than the presence or absence of the striker member 123. A hole 1215 for attaching the striker member 123 and a striker member support portion 1216 are provided on the back side of the cover 120, but a special formation for providing the striker member 123 except for the slit 1214 on the front side. If the striker member 123 is removed from the stepped portion 124 when the cover 120 is shared in a cover with a door / a cover without a door, the attachment portion of the striker member 123 is provided. It is possible to share the cover with a good appearance so as not to make the user aware of it.

Since the slit 1214 is also opened downward in the step portion of the step portion 124, it is not visually visible when facing from the front side of the distribution board as shown in FIG. There is no.

Further, the striker member support portion 1216 and the hole portion 1215 may be provided for each of the plurality of slits 1214 provided. In this case, a plurality of striker members 123 can be used for the distribution board, and even when the number of internal devices of the distribution board increases and the cabinet becomes larger, the door is securely held. be able to.

In this embodiment, the push latch 133 is provided on the door 130 side, the striker member 123 is provided on the cover 120, and the base portion 1231 of the striker member 123 is formed in a flat plate shape. The amount protruding to the back side of the cover 120 can be reduced as much as possible. Generally, a distribution board is configured by attaching a push latch to the cover side and attaching a striker to the door side. The length of the push latch component in the depth direction is long, and the amount protruding to the back side of the cover is large.

On the back side of the cover, the electric wires wired in the case are often located, and when the cover is attached to the case, the protruding part of the push latch part may press the electric wire or damage the covering of the electric wire Yes, it may not be preferable from the aspect of electrical safety. However, in the present embodiment, the amount of protrusion to the back side of the cover can be set to about the thickness of the flat plate constituting the striker member 123, and there is almost no amount of protrusion, so there is no influence on the wired wires. . The cover can be shared while having an excellent electrical safety structure.

(Second Embodiment)
Next, the distribution board according to the second embodiment will be described. In the distribution board according to the second embodiment, the shape of the striker member 123 and the arrangement of the striker member support portion 1216 are different.

With respect to the shape of the striker member 123B according to the present embodiment, a striker 1232 provided with a mushroom-shaped protruding portion that protrudes in a vertical direction with respect to the flat plate from a flat base portion 1231 and serves as a latch portion at the distal end portion. And the point that the striker member 123B is arranged to face the push latch 133 is the same as in the first embodiment.

In addition to the configuration of the striker member 123, the striker member 123 </ b> B is formed by projecting a protruding portion 1234 from the base portion 1231 toward the front surface and a plug portion inserted into the slit 1214. Is different. Further, the screw through hole 1233 is closed.

The protrusions 1234 are formed at both ends of the base 1231 in the left-right direction in the figure. The protruding portion 1234 is formed so that the protruding amount of the portion contacting the surface of the stepped portion 124 where the slit 1214 is formed is the largest. Further, the portion of the stepped portion 124 that contacts the surface on which the slit 1214 is formed is formed in parallel with the surface of the stepped portion 124.

In addition, the insertion portion 1235 is formed to extend from the base portion 1231 to the fork in the direction of insertion into the slit 1214. The insertion portion 1235 has a width substantially the same as that of the slit 1214, and a return portion 1235a is formed at the tip portion. The interval between the return portion 1235a and the base portion 1231 is set to be approximately the thickness of the stepped portion forming the slit 1214.

Next, the case where the striker member 123B is attached to the cover 120 will be described. When attaching the striker member 123B to the cover 120, the insertion part 1235 of the striker member 123B is inserted into the slit from below the cover 120.

When the striker member 123B is inserted into the slit 1214, the insertion portion 1235 is slightly bent and enters the slit. When the return portion 1235a passes through the slit 1214, the return portion 1235B unwinds and spreads on the back side of the cover, thereby preventing the striker member 123B from coming off.

When removing the striker member 123 </ b> B from the cover 120, the striker member 123 </ b> B is pulled out from the slit 12 toward the lower side of the cover 120 and removed. Specifically, the striker 1232 portion and the protruding portion 1234 are pulled out downward, or the insertion portion 1235 is pressed downward from the back side of the cover 120. The insertion part 1235 can be removed downward by applying a force to the extent that the insertion part 1235 is bent in the width direction of the slit 1214.

Further, regarding the arrangement of the striker member support portion 1216B, the insertion portion 1235 is arranged so that the insertion portion 1235 of the striker member 123B inserted from the slit 1214 provided below the cover 120 is not easily exposed to the back side of the cover. It is provided so as to be sandwiched and concealed between the front surface side on the back surface of the cover and the front surface side of the striker member support portion 1216B.

In the present embodiment, the striker member support portion 1216B protrudes from the stepped portion 124 so that the protruding portion of the insertion portion 1235 of the striker member 123B to the back side of the cover 120 can be concealed from the back side. Provided. Further, the back surface side of the insertion portion 1235 and the front surface side of the striker member support portion 1216B are provided so as to substantially contact each other, and acts as a backlash control when the striker member 123B is inserted.

Since the striker member 123B and the striker member support portion 1216B are formed in this way, the following effects are obtained.

For example, when the door is closed and the push latch 133 and the striker 1232 are engaged and the door 130 is pulled to pull the door 130 toward the front side, a strong force is applied to the striker 1232 portion. The striker member 123B is pulled to the front side and tries to rotate with the slit 1214 as the center of rotation, but the protruding portion 1234 provided so as to protrude toward the front surface of the striker member 123B forms the slit 1214 in the stepped portion 124. Since the protruding portion 1234 contacts the stepped portion 124 and contacts the stepped surface, it serves as a detent and can be held in a latched state and prevented from being damaged by deformation of the striker member 123B.

Further, when the striker member 123B is pulled to the front side, the insertion portion 1235 of the striker member 123B that protrudes on the back side of the cover 120 abuts on the concealing portion formed by the striker member support portion 1216B, and is the same as the above. It serves as a detent and can be combined with the protrusion 1234 to prevent damage due to deformation of the striker member 123B.

Further, on the back side of the cover 120, a gutter space is provided in the vicinity of the place where the striker member 123B is disposed to store the electric wires to be wired when the distribution board is used. It is assumed that the cover of the electric wire is damaged by pressing the electric wire with the protrusion on the back side of the cover 120 as before, or the protrusion is damaged by the electric wire, but the concealing portion is provided. Thus, it is possible to eliminate protrusions on the back side of the cover 120 and prevent them from being damaged.

Further, as compared with the first embodiment, since a screw member for fixing the striker member 123 to the cover side is not necessary, it is possible to reduce the number of used members and reduce waste during replacement. Therefore, the environmental load can be further reduced.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

For example, the distribution board using the case structure of the present invention can be used for a single-phase two-wire electric circuit, a three-phase three-wire electric circuit, and the like in addition to a single-phase three-wire commercial electric circuit. In addition to the distribution board, it can be applied to a case of a standard board, or can be applied to a metal case instead of a general resin case.

  Further, for example, instead of the screw for fixing and attaching the striker member 123 to the cover 120, the bottom of the hole 1215 is enlarged with respect to the hole diameter, and the pin is formed into a hole using a pin formed in a bulb shape. You may comprise so that the striker member 123 may be fixed by inserting in a part. In this case, the screw tightening work is unnecessary, and improvement in work efficiency can be expected.

Further, instead of the screw through-hole in the base portion 1231 of the striker member 123, a protruding portion is formed in the screw through-hole portion in the same direction as the striker 1232 and protruded so as to be fitted into the slit 1214. You may comprise so that a striker member may be fixed by inserting the said protrusion in the hole 1215 by the side of the cover 120 after inserting in the slit 1214. By forming the protrusions in place of the screws and pins, these screws and pins become unnecessary, and a reduction in parts used can be expected.

DESCRIPTION OF SYMBOLS 100 Residential distribution board 101 Current limiter 102 Main switch 103 Branch switch 110 Case 120 Cover 121 Hinge attachment part 1214 Slit 1215 Hole part 1216 Striker member support part 1216B Striker member support part 123 Striker member 1231 Base part 1232 Striker 1233 Screw Through-hole 1234 Protruding part 1235 Insertion part 123 Strike member 124 Step part 130 Door 133 Push latch 1300 Hinge structure part

Claims (4)

A case for storing internal equipment,
A distribution board comprising a cover combined with the front side of the case so that the internal device can be operated;
A step portion formed by providing a step with a peripheral portion on a part of the front side of the cover;
The stepped portion is configured by providing a slit that opens toward the lower direction when the distribution board is attached,
By inserting and attaching a striker member formed by projecting a striker in the vertical direction with respect to a flat plate provided in a size that can be inserted into the slit, from below the slit,
The striker is mounted in a state of protruding in the front direction,
The protrusion amount of the striker member on the back side of the stepped portion is about the plate thickness of the flat plate ,
In the state where the striker member is removed, the slit does not face the front side of the cover.
A distribution board comprising a striker member detachably attached to the cover. The stepped portion is provided by forming a concave portion of the cover near the lower periphery of the cover,
2. The distribution board according to claim 1, wherein a plurality of the slits are provided in the step portion. The striker member is further provided with a protruding portion protruding in the front direction,
The distribution board according to claim 1, wherein the projecting portion is in contact with a surface of the stepped portion where a slit is formed. The distribution board according to any one of claims 1 to 3, wherein a concealing portion for concealing a portion where the striker member protrudes on the back side of the cover is provided on the back surface side of the cover.

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