JP4496832B2 - Electrical equipment storage box - Google Patents

Description

  The present invention relates to an electrical equipment storage box that houses electrical equipment such as a breaker.

  Conventionally, as an electrical equipment storage box, a pair of frames are attached to the bottom surface of a box with an opening on one side, and an internal unit block that incorporates electrical equipment such as a breaker is provided in the frame, and the frame is placed between the frames. What was installed is known (for example, refer patent document 1).

  In this electrical equipment storage box, as shown in FIG. 5, the outer door 9 that covers the opening 1a of the box 1 from the outside, the handle portion of the breaker 8, etc. are exposed by fitting into the opening 1a, and the other An inner door 5 that covers the portion is provided.

  The outer door 9 is attached to the box 1 by a hinge or the like (not shown) so that the opening 1a can be opened and closed. The inner door 5 is supported by a column 40 fixed to the frame 2 such that one end thereof is swingable by a link mechanism or the like, and the other end is supported so as to be fastened. The opening 1a of the body 1 can be opened and closed.

  As the fastening structure of the inner door 5 and the support column 40, a screw hole is formed in the end surface of the support column 40, and a screw member 41 such as a knurled screw that is screwed into the screw hole is inserted into the inner door 5. A hole is formed, and the inner door 5 is attached to the column 40 by screwing the screw member 41 into the screw hole of the column 40 from the through hole of the inner door 5 with the inner door 5 in contact with the end surface of the column 40. It comes to be fixed.

In such an electric equipment storage box, since a space is formed between the support column 40 and the side surface of the box body 1, a plurality of electric cables 6 connected to the electric equipment 8 incorporated in the inner unit block 3. Will be routed in the space.
Japanese Utility Model Publication No. 5-50908

  However, in order to arrange the plurality of electric cables 6, these electric cables 6 may be collectively attached to the support column 40 with a binding band 7. In this case, the support column 40 is attached by the weight of the electric cable 6. Due to the deformation, the position of the through hole of the inner door 5 and the position of the screw hole of the support column 40 are shifted, and it may be difficult to fix the inner door 5 to the support column 40 with the screw member 41.

  In view of such circumstances, the present invention provides an electrical equipment storage box that can fix a door to a support without hindrance even when a binding band for adjusting an electric cable is attached to a support that supports the door. For the purpose.

The present invention provides an electric device in which an inner block is disposed on a frame attached to a box having an opening, and a door capable of opening and closing the opening of the box is supported on a plurality of columns fixed to the frame. In the storage box, a pair of the frames are attached to the bottom surface on the opposite side of the opening surface of the box at positions spaced apart from each other, the inner block is installed between the frames, and the support column is attached to each frame. A fixed portion that is fixed, and a support portion that is erected upward from the fixed portion, and the door is swingably supported on one side end by a column on one side, and the other end The other side of the door is provided with a fastening means for fastening the door to the column, and the other side column is made of synthetic resin or the like. It is integrally molded, and the right part of the fixed part of this column is on the inner block side A rib plate is erected, and a head portion with which the door abuts is connected to an upper portion of the rib plate, and a support portion is configured including the rib plate and the head portion. Is provided with a binding band mounting portion protruding upward toward the opening surface of the box, and this binding band mounting portion is an insertion through which a binding band for straightening an electric cable routed in the box can be inserted. It has a hole .

According to the present invention, since the binding band attaching portion having the insertion hole through which the binding band of the electric cable can be inserted is provided in the fixing portion of the support column, the binding band can be easily attached to the binding band attaching portion.

  And by attaching in this way, the weight of the electric cable is supported by the fixed part of the support column, and it becomes difficult to be applied to the support part that supports the door, so it is possible to effectively suppress deformation of the support part due to the weight of the electric cable. can do. Therefore, even when a binding band for adjusting the electric cable is attached to the support, the door can be fixed to the support without any trouble without deforming the support portion of the support.

In addition, since the binding band mounting part is formed in a shape that protrudes from the fixed part toward the opening surface of the box, the binding band is installed when the electric cable is routed in the space between the support column and the side of the box. Can be attached to the binding band attaching portion more easily.
Further, since the support portion is configured by including a substantially right triangle plate-like rib plate between the head portion on which the door is brought into contact with and the fixed portion, it is difficult to attach a binding band to this portion, It is possible to effectively prevent the binding band from being erroneously attached to the support portion.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the electrical equipment storage box includes a box 1 having a large opening 1a on one surface of a rectangular parallelepiped shape, and an outer door 9 that covers the opening 1a from the outside. A pair of left and right frames 2 extending in the longitudinal direction of the box 1 and arranged in the width direction are attached to the bottom surface of the box 1 opposite to the opening surface (the opened surface). Inner unit blocks 3 </ b> A and 3 </ b> B are disposed across 2, and a plurality of support columns 4 </ b> A and 4 </ b> B are fixed to the frame 2. The inner door 5 is supported by the support columns 4A and 4B so as to fit in the opening 1a of the box 1 and cover the inner unit blocks 3A and 3B.

  The box 1 and the outer door 9 are made of a thin metal plate. The outer door 9 has a right end attached to the box 9 through a hinge 19a and a left end. Fastening means 19b for fastening the outer door 9 to the box 1 is provided so that the opening 1a of the box 1 can be opened and closed.

  The fixing means 19b is, for example, a rotary latch lock, and an engagement piece 191 provided on the inner side of the outer door 9 protrudes from the outer door 9 by inserting a key from the outer side of the outer door 9 and turning it. It engages with the body 1.

  The frame 2 is formed in a substantially U-shaped cross section that opens downward with a metal plate or the like.

  In order to fix the frame 2, bolts 12 are provided at positions corresponding to both ends in the longitudinal direction of the frame 2 on the bottom surface in the box 1, and the bolts 12 are in a state in which the screw portions are directed upward. The presser plate 13 holds the head and is fixed to the bottom surface of the box 1.

  Then, the spacer nut 14 is screwed and fixed to the bolt 12, the frame 2 is placed on the spacer nut 14, and the nut 15 is screwed to the bolt 12 protruding from the frame 2 to fix the frame 2. It is fixed to the bottom of the box 1.

  Although not shown, a plurality of screw holes are formed at appropriate positions on the upper surface of the frame 2.

  The inner block 3A, 3B distributes the electric power input on the downstream side of the main block breaker 8A and the main block 3A in which the main breaker 8A that cuts off the electric power input from the outside is attached to the plate 3a. There are two types of internal unit blocks 3B in which a plurality of branch breakers 8B are attached to the plate 3b, and these internal unit blocks 3A and 3B are arranged in the longitudinal direction of the box 1.

  The plates 3 a and 3 b have a size that can be bridged across the left and right frames 2, and both left and right end portions are bent upward and horizontally in two stages along the frame 2 and overlapped on the frame 2. Has been. The plates 3a and 3b are fixed to the frame 2 by screwing screws B1 into the screw holes of the frame from above the left and right ends.

  The inner door 5 is a thin metal plate and is sized to fit into the opening 1a of the box 1 so that a notch is formed at an appropriate position so that the handle portions of the breakers 8A and 8B are exposed to the outside. It has become.

The inner door 5 is supported by the link mechanism 45a so that the right end thereof is swingable by the link 4B, and the left end is supported by the support 4A so that the opening 1a of the box 1 is opened. It can be opened and closed. A fastening means 45b for fastening the inner door 5 to the support column 4A is provided at the left end of the inner door 5. The fixing means 45b will be described later.

  Each of the support columns 4A and 4B includes a fixed portion 4a fixed to the frame 2 and a support portion 4b standing upward from the fixed portion 4a, and the fixed portion 4a is the inner block 3A or 3B. It is superimposed on the plates 3a and 3b and fixed to the frame 2 with screws B2 via the plates 3a and 3b.

  Here, in order to explain the fastening structure of the inner door 5 and the support 4A and the structure of the support 4A in detail, an enlarged perspective view of the fastening means 45b provided on the support 4A and the inner door 5 is shown in FIG. .

  The fastening means 45b is a slide-type latch lock, and the engagement piece 452 is urged by a spring or the like provided in the main body 451 and protrudes from the left side surface of the main body 451. The engaging piece 452 is provided with a knob 453 for operation, and the knob 453 protrudes from an opening formed on the upper surface of the main body 451.

  The support column 4A is integrally formed of synthetic resin or the like, and the inner door 5 is hardly damaged when the inner door 5 comes into contact with the upper end surface of the support portion 4b.

  The fixing portion 4a of the support column 4A is formed in a rectangular plate shape extending in the longitudinal direction of the frame 2, and from the vicinity of the center of the fixing portion 4a, two ribs having a substantially right triangular plate shape in which the bottom side and the left side make a right angle. The plate 4e is erected in a state where the plate 4e is arranged in the longitudinal direction of the fixed portion 4a, and a rectangular plate-shaped head 4g with which the inner door 5 is brought into contact with the upper side surface is provided above the rib plate 4e. 4a and the longitudinal direction are arranged in the same direction and the short sides are arranged in a substantially perpendicular posture.

  The rib plate 4e and the head 4g constitute a support portion 4b.

  The head 4g is formed with a rectangular cutout 4f at the center, and the engaging piece 452 of the fastening means 45b is inserted into the cutout 4f to engage with the upper peripheral edge of the cutout 4f. By doing so, the inner door 5 is fixed to the support column 4A.

  On the other hand, in order to release the fastening state of the inner door 5, the fastening state can be released by picking the knob 453 of the fastening means 452 and moving the engagement piece 452 to the right against the instability of the spring. .

  A pair of binding band mounting portions projecting upward toward the opening surface of the box 1 at both ends in the longitudinal direction at the end opposite to the end on the inner unit block 3A, 3B side of the fixed portion 4a 4c is provided. This binding band attaching portion 4c is inserted through in the left-right direction through which a binding band 7 (see FIG. 4) for aligning a plurality of electric cables 6 (see FIG. 4) routed in the box 1 can be inserted. It has a hole 4d.

  Thus, since the binding band attaching portion 4c having the insertion hole 4d through which the binding band 7 of the electric cable 6 can be inserted is provided in the fixing portion 4a of the support 4A, the support 4A and the box 1 are provided as shown in FIG. When routing a plurality of electric cables 6 connected to the breakers 8A, 8B and the like incorporated in the inner unit blocks 3A, 3B in the space between the side walls of the inner cables 3A and 3B, the electric cables 6 are wired. The binding band 7 to be attached can be easily attached by passing it through the insertion hole 4d of the binding band attaching portion 4c of the support column 4A.

  And by attaching in this way, the weight of the electric cable 6 is supported by the fixing part 4a of the support column 4A, and it is difficult to be applied to the support part 4b that supports the inner door 5, so the support part 4b is weighted by the electric cable 6. Therefore, it is possible to effectively suppress deformation. Therefore, even when the binding band 7 for adjusting the electric cable 6 is attached to the support 4A, the inner door 5 can be fixed to the support 4A without any trouble without deforming the support portion 4b of the support 4A.

  In addition, since the binding band attaching portion 4c is formed in a shape protruding from the end of the fixed portion 4a opposite to the end on the inner unit block 3A, 3B side toward the opening surface of the box 1, this binding band Since the distance between the attachment portion 4c and the electric cable 6 is reduced and the operation is facilitated from the opening 1a of the box 1, the binding band 7 can be more easily attached to the binding band attachment portion 4c.

  Furthermore, since the portion between the head portion 4g with which the inner door 5 of the support portion 4b abuts and the fixing portion 4a is constituted by a rib plate 4e having a substantially right triangle plate shape, a binding band 7 is attached to this portion. It becomes difficult to effectively prevent the operator from attaching the binding band 7 to the support portion 4b by mistake.

  In the above embodiment, the fastening means 45b for fastening the inner door 5 and the support column 4A is a slide type latch lock. However, the fastening means 45b is not limited to this, for example, the support column 4B. It is also possible to form a screw hole in the upper end surface of the screw and employ a screw member such as a knurled screw. The same applies to the fastening means 19b for fastening the outer door 9 and the box 1 together.

  The support column 4A does not necessarily have to be integrally molded with a synthetic resin or the like. The support column 4A is made of a metal material, and a cushioning material such as urethane rubber is pasted on the upper end surface of the support column 4A with which the inner door 5 abuts. It does not matter if it is a thing.

  On the other hand, the binding band mounting portion 4 is shown as being provided on the fixing portion 4a of the support column 4A that supports the inner door 5 so that the inner door 5 can be fixed, but the fixing portion 4a of the support column 4B that supports the inner door 5 so as to be swingable. It may be provided on both of the columns 4A and 4B.

  Further, the electric devices incorporated in the internal unit blocks 3A and 3B are not limited to the breakers 8A and 8B, and may be other electric devices.

  In the above embodiment, the support 4A, 4B is attached to the frame 2 via the plates 3a, 3b of the inner unit blocks 3A, 3B. However, the plates 3a, 3b are not cut out or the plates 3a, 3b are not provided. The support posts 4A and 4B may be directly fixed to the frame 2 by arranging the support posts 4A and 4B at positions.

  Moreover, as the shape of the box 1, a form having a large opening on the upper surface of the box 1 is shown, but the upper surface may be all open.

  In addition, the shape of the frame 2, the mounting structure to the box 1, the shapes of the plates 3a and 3b of the internal unit blocks 3A and 3B, and the like can be appropriately changed.

It is a top view in the state where the outer door and inner door of an electric equipment storage box were removed. It is the II sectional view taken on the line of FIG. It is a perspective view of the fixing means provided in the support | pillar and the inner door. It is front sectional drawing which shows a state when a binding band is attached to the binding band attaching part of a support | pillar. It is front sectional drawing of the conventional electric equipment storage box.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box 2 Frame 3A, 3B Inner unit block 4A, 4B Support | pillar 4a Fixing part 4b Support part 5 Inner door 6 Electric cable 7 Binding band 8A Master breaker 8B Branch breaker 9 Outer door 19b, 45b Fixing means

Claims (1)

In an electrical equipment storage box in which an internal unit block is disposed in a frame attached to a box having an opening, and a plurality of columns fixed to the frame support a door capable of opening and closing the opening of the box.
A pair of the frames are attached to the bottom surface on the opposite side to the opening surface of the box at positions spaced apart from each other, and the inner unit block is installed between the frames,
The support column includes a fixed portion fixed to each frame, and a support portion standing upward from the fixed portion,
The above-mentioned door is supported so that one end of the door can swing on one post, and the other end can be fixed to the other post so that it can be fixed to the other end of the door. Is provided with fastening means for fastening the door to the column,
The other side support column is integrally formed of synthetic resin or the like, and a substantially right triangle plate-like rib plate is erected on the inner unit block side of the fixed portion of the support column, and the door contacts the upper portion of the rib plate. The head to be touched is continuously provided, and the support portion is configured by including the rib plate and the head.
The fixing part is provided with a binding band attaching part protruding upward toward the opening surface of the box, and the binding band attaching part is provided with a binding band for straightening an electric cable routed in the box. An electrical equipment storage box having an insertion hole through which insertion is possible .

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