JPH0340003Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a power distribution board in which a board for mounting multiple devices such as breakers is fixed on vertical rails within a case. , relates to a mounting structure for a board in such a power distribution board.

(Prior Art) FIG. 6 shows a conventional method of mounting a switchboard board. In FIG. 1A, reference numeral 1 denotes rails each having a C-shaped cross section and installed in pairs in parallel within a power distribution board, and a board 2 on which equipment such as a breaker (not shown) is fixed is fixed onto this rail 1. A nut member 3 of a size that does not come out of the split groove 1a is inserted into the rail 1 so as to be movable in the longitudinal direction of the rail. The board 2 is fixed onto the rail 1 by inserting bolts 4 into required locations of the board 2, screwing them into the nut members 3, and tightening the rail 1. In Figure B, the rail 21 has a large number of screw holes 21 provided at regular intervals in the vertical direction, and the board 2 is fixed onto the rail 21 with bolts 6.

(Problem to be solved by the invention) In any of the above-mentioned conventional board mounting methods, the nut member 3 and the screw hole 21a are
is completely hidden behind the board 2, making it difficult to align the bolt insertion hole 2b of the board 2, the nut member 3, and the screw hole 21a, and the nut member 3 is a clue that protrudes to the outside of the rail 1. Because there is no handle, once it is removed from your hand, it will slide on the rail 1 and move freely. For example, if there is an existing board 2 below, it will slip behind the board and become irreversible. There is a problem.

Further, in the case shown in FIG. 6A, when a plurality of boards 2 are arranged vertically and mounted on the rail 1, in order to insert an electric wire between two vertically adjacent boards 2, 2, both It is necessary to leave an interval between them, but there is a problem in that it requires a lot of work to make this interval equal on the left and right sides. In the case shown in FIG. 6B, since the vertical width of the board 2 needs to be a multiple of the interval between the screw holes 12, there is a problem that the installation space for the equipment is likely to be insufficient or too large.

Therefore, the present invention solves the above conventional problems, allows easy alignment with the bolt insertion hole of the board, allows easy control of the position from the outside, and securely fixes the board. An object of the present invention is to provide a board mounting structure that allows for easy setting of the distance between upper and lower boards.

(Means for solving the problem) In this invention, in order to solve the above problem,
A pair of parallel cross-section C-shaped rails 1, 1 installed vertically inside a switchboard case;
A plurality of boards 2 are attached vertically to the front surface of the rail 1 and are inserted into the rail 1 in order to fix the boards 2 to the rail 1 in cooperation with bolts 14 at their four corners. A power distribution board includes a mounting bracket 10 and a spacer 15 fixed on the rail 1 so as to be interposed between the two vertically adjacent boards 2, 2, and the board 2 has rails at the four corners. Hole 2 for bolt insertion corresponding to groove 1a of No. 1
The mounting bracket 10 is provided with a hole 2b for inserting a bolt in the board 2, which is movable up and down within the rail 1.
A screw hole 11 that matches the bolt 14 and screws into the bolt 14.
A supporting piece 12 is provided so as to extend perpendicularly from the screw receiving part 11, pass through the split groove 1a of the rail 1, and protrude forward at right angles to the rail 1. , this support piece 1
2, there are guide recesses 12a on both sides of the rail 1, through which both edges of the groove 1a of the rail 1 can be freely inserted.
12a, and the spacer 15 includes a plate-shaped main body 15a interposed between the two vertically adjacent substrates 2, 2 and the mounting brackets 10, 10, and a spacer 15 that extends downward from the main body 15a and is bent toward the rail 1 side. The main body 15a has a hole 15 for inserting a bolt 16 for fixing it to the rail 1.
c was established.

(Function) In the present invention, the mounting bracket 10 includes the support piece 12
Fit the recesses 12a at the base of the rail 1 into both side edges of the groove 1a of the rail 1, insert the screw receiver 11 inside the rail 1, and insert the support piece 12 into the groove 1a.
Use it with it protruding outward. In this state, the recess 12a at the base of the support piece 12 engages with both side edges of the groove 1a of the rail 1, so the mounting bracket 1
0 can hardly move back and forth or left or right with respect to the rail 1. Thus, the mounting bracket 10 can be freely moved up and down on the rail 1 by holding the support piece 12. Since the support piece 12 protrudes from the split groove 1a to the front of the rail 1, the support piece 1
Even if the mounting bracket 10 is allowed to slide down freely by removing the hand from the support piece 12, the support piece 12 will stop and stop, for example, on the existing board 2 located below, and will not go missing. The dimension between the support piece 12 and the screw hole 11a is set equal to the distance from the edge of the board 2 to the bolt insertion hole 2b, so when installing the board 2, place the edge against the support piece 12. Then, the bolt insertion hole 2b and the screw hole 11a automatically align with each other. Therefore, in this state, if the bolts 14 are screwed into the holes 2b and 11a and both edges of the rail 1 are held between the screw receiving part 11 and the board 2, the board 2 can be fixed in any position. can. Note that since the spacer 15 is interposed between the upper and lower substrates 2, 2 and the mounting fittings 10, 10, the distance between them is automatically determined. When various devices A are mounted on the board 2, a considerable amount of weight will be placed on the board 2, but the spacer 15 suspends the support piece 12 of the lower mounting bracket 10 with the claw 15b, and the main body 15
Since the support piece 12 of the upper mounting bracket 10 is supported by the support piece 12 of the upper mounting bracket 10, the board 2 is securely fixed on the rail 1. Once the board 2 is fixed on the rail 1, if it becomes necessary to remove it, even if the bolts 14 at the four corners are removed, the mounting bracket 1
is fixed on the rail 1 by the spacer 15, so the mounting bracket 10 will not slide down on the rail 1. Therefore, it is easy to attach the board 2 again.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 4.
Figure 1 is a perspective view showing how the board is attached, Figure 2 is a perspective view showing how the board is attached.
3 is an enlarged front view, FIG. 4 is a sectional view of FIG. 3, and FIG. 5 is a front view of the substrate.

The switchboard of this embodiment includes a pair of parallel cross-section C-shaped rails 1 that are vertically installed in a case (not shown), a plurality of boards 2 that are installed vertically in front of the rails 1, and the boards 2. 2,
At its four corners, the rail 1 cooperates with bolts 14.
In order to fix the rail 1, the rail 1 includes a mounting bracket 10 inserted into the rail 1, and a spacer 15 fixed on the rail 1 so as to be interposed between two vertically adjacent boards 2, 2. .

The board 2 is a horizontally long rectangular board, on which a plurality of devices A, such as a magnetic switch, a circuit breaker, a current transformer, and an auxiliary relay, shown in phantom lines in FIG. 2 are attached. The board 2 has notches 2 for receiving claws on both sides of the upper edge at positions corresponding to the grooves of the rail 1.
a are provided, and bolt insertion holes 2b corresponding to the grooves of the rail 1 are provided at the four corners.

The mounting bracket 10 is mounted on the rail 1 so that the four corners of the board 2 are held down by the support pieces 12. The mounting bracket 10 is made by bending both sides of a rectangular metal plate at 90 degrees in opposite directions, and has a screw receiving part 11.
, a support piece 12 , and a stabilizing piece 13 .
The screw receiving portion 11 is slidable within the rail 1 and has a screw hole 11a approximately in the center. In the illustrated embodiment, the screw receiving portion 11 is formed by welding a nut 11b to a metal plate portion, and the screw hole 11a is formed by welding a nut 11b to a metal plate portion.
1b is used, but of course it is not limited to this, and for example, screw holes may be formed directly in the metal plate portion. Support piece 12
is formed by bending one end of the screw receiving portion 11 at a right angle, and projects outward from the slot 1a of the rail 1 at a right angle when mounted on the rail 1. At the base of the support piece 12, there is a slot 1 of the rail 1.
A pair of opposing recesses 12a, 12a are formed through which both side edges of the rail 1 can be freely inserted.
It is designed to prevent it from wobbling from side to side.
The distance from the support piece 12 to the screw hole 11a is set to be equal to the distance from the edge of the board 2 to be attached to the bolt insertion hole 2b. Therefore, when the edge of the board 2 is brought into contact with the support piece 12, the bolt insertion hole 2b and the screw hole 11a are automatically aligned. The stabilizing piece 13 is formed by bending the other end of the screw receiving part 11 at a right angle to the side opposite to the supporting piece 12. This stabilizing piece 13 is attached to the mounting bracket 10
It is designed to prevent the other end from wobbling in the front and rear directions within the rail 1.

The spacer 15 is interposed between the two vertically adjacent substrates 2, 2 and the mounting brackets 10, 10,
It is fixed onto the rail 1 with bolts 16 and nuts 17. That is, the spacer 15 consists of a plate-shaped main body 15a and a claw 15b that extends downward from the main body 15a, bends toward the rail 1 side, and engages with the support piece 12 of the mounting bracket 10.
A is provided with a hole 15c into which a bolt 16 for fixing to the rail 1 is inserted.

In this embodiment, the mounting bracket 10 connects the recess 12a at the base of the support piece 12 to the slot 1 of the rail 1.
It is used with the screw receiving part 11 and the stabilizing piece 13 inserted into the inside of the rail, and the supporting piece 12 protruding outward from the split groove 1a. In this state, the recesses 12a at the base of the support piece 12 engage with both side edges of the split groove 1a of the rail 1, and the end surfaces of the stabilizing piece 13 engage with the back plate 1b of the rail 1.
Since the mounting bracket 10 faces the inside of the rail 1, the mounting bracket 10 can hardly move back and forth or left or right with respect to the rail 1. Therefore, the mounting bracket 10 has a supporting piece 12
It can be moved freely up and down on the rail 1 by pinching it. Since the support piece 12 protrudes from the split groove 1a toward the front of the rail 1, even if you release your hand from the support piece 12 and allow the mounting bracket 10 to slide down freely, the support piece 12 can be attached to, for example, an existing board located below. It locks and stops, and never goes missing. The dimension between the support piece 12 and the screw hole 11a is the same as that of the substrate 2.
Since the distance is set equal to the distance from the edge of the board 2 to the bolt insertion hole 2b, when installing the board 2, if the edge is placed on the support piece 12, the bolt insertion hole 2b and the screw hole 11a are automatically connected. Match. Therefore,
In this state, by screwing the bolts 14 into the holes 2b and 11a and sandwiching both edges of the rail 1 between the screw receiving part 11 and the board 2, the board 2 can be fixed at any position. Note that since the spacer 15 is interposed between the upper and lower substrates 2, 2 and the mounting fittings 10, 10, the distance between them is automatically determined.
When various devices A are mounted on the board 2, a considerable weight will be placed on the board 2, but the spacer 1
5 suspends the support piece 12 of the lower mounting bracket 10 with the claw 15b, and supports the support piece 12 of the upper mounting bracket 10 with the main body 15a, so that the board 2 is securely placed on the rail 1. It will be fixed at Once the board 2 is fixed on the rail 1,
Even if the bolts 14 are removed and the board 2 is removed when it becomes necessary to remove it, the mounting bracket 10 is fixed on the rail 1 by the spacer 15, so it will not slip off. Therefore, it is easy to attach the board 2 again.

(Effect of the invention) As described above, in the present invention, a pair of parallel cross sections C installed perpendicularly inside the switchboard case
A plurality of boards 2 are attached vertically to the front surface of the rails 1, 1 vertically and vertically, and the boards 2 are connected by bolts 1 at their four corners.
A mounting bracket 10 is inserted into the rail 1 in order to cooperate with the mounting bracket 4 and fixed to the rail 1, and the mounting bracket 10 is fixed on the rail 1 so as to be interposed between the two vertically adjacent boards 2, 2. spacers 15 to constitute a power distribution board, holes 2b for bolt insertion corresponding to the grooves 1a of the rail 1 are provided at the four corners of the board 2,
The mounting bracket 10 is provided with a screw receiving part 11 that is movable up and down within the rail 1 and has a screw hole 11a that matches the bolt insertion hole 2b of the board 2 and into which the bolt 14 is screwed. , a support piece 12 is provided to extend perpendicularly from this screw receiving part 11, pass through the split groove 1a of the rail 1, and protrude forward at a right angle to the rail 1, and on both sides of this support piece 12, the rail Guide recesses 12a, 12a are provided for freely inserting both edges of the split groove 1a, and the spacer 15 is interposed between the two vertically adjacent substrates 2, 2 and the mounting brackets 10, 10. A plate-shaped main body 15a extends downward from the main body 15a, is bent toward the rail 1 side, and has a lower mounting bracket 10.
A claw 10 that engages with a support piece 12 to suspend and support it.
Since the main body 15a is provided with a hole 15c for inserting a bolt 16 for fixing it to the rail 1, the support piece 12 of the mounting bracket 10 protruding outward from the slot 1a of the rail 1 can be touched with your finger. Pick rail 1
You can easily move to any position on the top to determine the mounting position of the board 2, and even if you release your hand from the support piece 12 of the mounting bracket 10, the support piece 12 protruding to the outside will not touch the existing lower part. Since it is stopped by being locked to the board 2 etc., it does not get lost and the assembly work can proceed easily and quickly. Also, the spacer 15 is attached to the lower mounting bracket 10 by the claw 15b.
By suspending the supporting piece 12 of the upper mounting bracket 10 and supporting the supporting piece 12 of the upper mounting bracket 10 by the main body 15a, the board 2 can be reliably fixed on the rail 1. If it becomes necessary to remove it after fixing it on the rail 1, simply remove the lower bolt 14, loosen the upper bolt 14, pull down the board 2, and remove the upper bolt 14 from the notch 2a. For example, board 2
Even if the mounting bracket 10 is removed, the mounting bracket 10 is fixed on the rail 1 by the spacer 15, so it will not slide down, and therefore, it is easy to reattach the board 2.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the mounting state of the board, Fig. 2 is a front view of the same, Fig. 3 is an enlarged front view, Fig. 4 is a sectional view of Fig. 3, and Fig. 5 is a front view of the board. , FIG. 6 is a perspective view of a conventional board mounted state. 1... Rail, 1a... Division groove, 2... Board,
2a...notch, 2b...bolt insertion hole, 10
...Mounting bracket, 11...Screw receiver, 11a...
...Screw hole, 12...Support piece, 12a...Recess, 1
4...Bolt, 15...Spacer, 15a...Main body, 15b...Claw, 16...Bolt, A...Device.

Claims (1)

[Scope of Claim for Utility Model Registration] A pair of parallel cross-section C-shaped rails installed vertically inside a switchboard case, a plurality of boards for mounting equipment that are installed vertically in front of the rails and arranged vertically, In order to fix this board to the rail in cooperation with the bolts at its four corners, mounting brackets inserted into the rail, and two vertically adjacent ones on the front side of the rail.
a spacer fixed to the rail so as to be interposed between two of the substrates; the substrate has bolt insertion holes at four corners corresponding to grooves of the rail; The mounting bracket is located within the rail and is movable up and down, and includes a screw receiving part that matches the bolt insertion hole of the board and has a screw hole for screwing the bolt, and a screw receiving part that extends at right angles from the screw receiving part. A support piece that extends and projects forward at right angles to the rail through the split groove of the rail, and a support piece that is formed on both sides of the support piece in order to be freely inserted through both edges of the split groove of the rail. the spacer has a plate-like body interposed between the two vertically adjacent substrates, and provided with a hole into which a bolt is inserted for fixing to the rail; What is claimed is: 1. A switchboard comprising a claw that extends toward the rail, bends toward the rail, and engages with the support piece of the mounting bracket to suspend and support the support piece.