JP2508265Y2 - Distribution board wire holding structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an electric wire holding structure for a distribution board such as a self-standing type.

[Prior Art] A cable support is usually provided for binding electric wires (normally referred to as "entry wires") put in a garter space in a box of a conventional distribution board.

[Problems to be solved by the invention] However, in the conventional cable support, a metal plate is processed,
Since it is welded and fixed to the box, there is a problem that the periphery of the box has corners and the coating of the electric wire is easily damaged.

The present invention has been made in view of such problems.
The purpose is to provide a wire holding structure for a distribution board that does not damage the wire coating and that also has a cable support that also functions as a reinforcing member for a protective plate for protecting internal components such as circuit breakers. There is.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention covers a front opening of a box body in order to protect an internal unit disposed in a substantially central portion of the box body. In a distribution board in which a protective plate is arranged and mounted in the vicinity of the opening, one side piece is fixed to the bottom of the box, and the above-mentioned protective plate is held by the other side piece facing the front opening of the box. A U-shaped protection cradle is provided so that the opening faces the garter space for connecting the internal unit in the box body, and a rod-shaped cable support member with a circular cross section is interposed between the both side pieces. is there.

[Operation] Therefore, in the present invention, since the cable support member has a circular cross section, it does not damage the coating of the electric wire, and the cable support member can also serve as a reinforcing member for the side piece of the protective plate cradle. Moreover, since it is a structure that is interposed between both sides of the protection plate pedestal, there is no need to weld and fix it specially.

[Embodiment] The present invention will be described below with reference to an embodiment.

In the distribution board of the present invention, as shown in FIG. 1, an outer lid 1 is attached to a front opening of a box body 4 by a hinge 23 so as to be freely opened and closed. When the outer lid 1 is opened, as shown in FIG. The inside of the box 4 is covered with a protective plate 3 provided as an inner lid on the front side of the protective plate 3, and the operation portion of the internal unit 2 such as a branch circuit breaker or a main circuit breaker is attached to the protective plate 3 on the front surface of the protective plate 3. It is exposed from the window hole 3a that is drilled.

The box body 4 is formed by bending and welding a steel plate as shown in FIG. 3, and the front end of the peripheral edge of the front opening is bent inward in a substantially Z-shaped cross section so that the protective plate is slightly inside the front opening. Forming a peripheral frame 22 of the opening in which 3 is placed,
Further, suspension bolts 24 are screwed on both sides of the upper surface.

Further, as shown in FIG. 3, the box body 4 is provided with two-row pillows 13 and 13 'on both sides of the bottom, respectively, above and below the box 4, and these two-row pillows 13 and 13' are provided. Protective plate receiving bases 11 on which fixed pieces 11a are mounted are installed upright on both sides of the bottom so as to straddle.

The protection plate cradle 11 is formed of a metal plate or the like bent in a U shape, one side piece is the fixed piece 11a, the other side piece is the protection plate holding piece 11b, and a metal circle between these two pieces 11a, 11b. Both pieces 11a, 11b are inserted by interposing a cable support member 14 made of a rod.
It is intended to reinforce, and the fixed piece 11a on the pillow 13,13 '
Is mounted as described above, and the end of the connecting plate 18 having a length across the width of the bottom of the box 4 is placed on the fixed piece 11a, and the end of the fixed piece 11a and the end of the connecting plate 18 are placed. They are fixed together by nuts 16 and 16 'which are screwed into bolts 15 and 15' of pillows 13 and 13 'which penetrate through the holes respectively provided.

In this fixed state, the central piece 11c of the protection plate receiving base 11 is the box 4
The side plates are parallel to each other with a gap. Here, there is a gap between the protective plate receiving base 11 and the box 4, and even if the box 4 is installed in a deformed state, the protective plate receiving base 11 is not much affected by the deformation of the box 4. There is no such thing.

A metal holder 17 is fixed by screws to the protective plate holding piece 11b of the protective pedestal 11 on one side, and by attaching one side edge of the protective plate 3 to the hinge 12 attached to the tip of the holder 17,
The protective plate 3 is held openably and closably via the hinge 12 and the receiving member 17.

On the protection plate holding piece 11b of the protection receiving base 11 on the other side, a receiving tool 17 provided with a female screw portion 19 for screwing a fixing screw 20 mounted on the protection plate 3 at its tip is screwed and closed. The other side edge side of the formed holding plate 3 can be fixedly held.

As shown in FIG. 4, the protective plate receiving bases 11 are arranged at least on both sides of the upper, lower and central portions of the box 4, and as shown in FIGS. The protection pedestal 11 provided has a horizontal piece 5a on the ceiling surface of the box body 4 and a vertical piece 5b of the L-shaped base 5 arranged along the inner side surface of the box body 4 along the vertical piece 5b. Then, the vertical piece 5b is fixed by screwing and fastening the fixing screw 7 inserted into the central piece 11a into the screw hole 6 formed in the vertical piece 5b.

The L-shaped base 5 is used to reinforce the box body 4 on which the hanging bolt 24 is mounted, and the insertion hole 8 on the ceiling surface of the box body 4 is used.
Also, the hanging bolt 24 is fixed by fastening the nut 10 to the male screw portion 24A of the hanging bolt 24 inserted through the insertion hole 9 provided in the horizontal piece 5A.

Now, the spacers 21 and 21 are inserted into the tips of the bolts 15 'and 15' of the pillows 13 'and 13' on both sides, and the spacers 21 and 21 on both sides are inserted.
The inner unit mounting plate 26 is bridged in between, and the inner unit mounting plate 26 is fixed to the bolts 15 ′, 15 ′ by the nuts 22, 22. On the inner unit mounting plate 26, the inner unit 2 and the booth bar mount 25
The internal unit support base 27 on which the above is arranged is fixed.

Thus, the space between the internal unit support base 27 and the protective plate support base 11 becomes a gutter space A for wire entry.

The cable support member 14 that also functions as a reinforcing member of the protection plate receiving base 11 facing the gutter space A has both upper and lower ends fitted into the recesses formed on the facing surfaces of the fixed piece 11a and the protection plate holding piece 11b. A binding band that is interposed between 11a and 11b and is fixed without any welding or the like, functions as a reinforcing member of the protection plate pedestal 11, and binds the wires wired in the gutter space A. Used to hold (not shown).

28 is a peripheral frame 22 of the box body 4 when the outer lid 1 is opened,
The gutter cover 28 is a gutter cover for preventing the gutter space A from being seen from the outside through a gap between the gutter cover 28 and the protection plate 3, and the gutter cover 28 is fixed to the protection plate holding piece 11b of the protection plate receiving base 11. Further, 29 is a latch metal fitting of the outer lid 1.

FIG. 5 shows a cross section of another embodiment having a large width dimension, and in the case of this embodiment as well, it basically has the same structure as that shown in FIG. The size is increased as the width of the box 4 is increased.

Although the gutter cover 28 is fixed to the protective plate holding piece 11b of the protective plate receiving base 11 in each of the above-described embodiments,
As shown in the figure, the structure may be such that the peripheral frame 22 is fixed by screws.

[Advantage of the Invention] Since the cable support member of the present invention has a circular cross section, it does not damage the coating of the electric wire, and the cable support member can also serve as a reinforcing member for both side pieces of the protection plate cradle. Since it has a structure in which it is interposed between both sides of the protection plate pedestal, there is an effect that it is not necessary to specially weld and fix it.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view showing a state in which the outer lid is opened, FIG. 3 is a sectional view of a main part of the same, and FIG. 4 is a part of the same. FIG. 5 is an enlarged cross-sectional view of the main part of the above, FIG. 5 is an exploded perspective view of the main part of the same, and FIG. 7 is another view of the present invention. FIG. 8 is an enlarged cross-sectional view of another embodiment of the present invention, which can be partially cut away. Reference numeral 1 is an outer lid, 2 is an inner container, 3 is a protective plate, 4 is a box, 11 is a protective plate pedestal, and 14 is a cable support member.

Claims (1)

(57) [Scope of utility model registration request] 1. A distribution board in which a protective plate is arranged and mounted in the vicinity of the opening so as to cover the front opening of the box in order to protect the internal unit arranged in the substantially central portion of the box. One side piece is fixed to the bottom of the body, and a substantially U-shaped protection cradle holding the above protection plate with the other side piece facing the front opening of the box, the opening of the inside of the box An electric wire holding structure for a distribution board, which is provided so as to face a garter space for connection, and a rod-shaped cable support member having a circular cross section is interposed between the both side pieces.