JPH0428166Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention is a power distribution board, more specifically, a mounting plate to which a power distribution member such as a breaker is attached is housed in a housing, and a mounting plate is installed from the bottom of the housing to the mounting plate. This relates to a distribution board whose distance can be adjusted.

[Background Art] Generally, in this type of distribution board, as shown in FIG. door 12
is attached to the bow. The casing 10 may be installed in a recess formed in a wall surface, and in that case, the distance from the bottom of the casing 10 to the door 12 is determined so that the front surface of the door 12 is flush with the wall surface. is adjustable. That is, an inner flange piece 13 extends inside the opening edge of the casing 10, and a horizontal piece 14 extending inside the door frame 11 is placed on this inner flange piece 13.
The height of the door frame 11 relative to the housing 10 can be adjusted by a height adjusting screw 15 screwed into the inner flange piece 13 through the horizontal piece 14. When the position of the door 12 is changed in this way, the inner lid 20 and the door 12 become the front plate surface of the electricity distribution member disposed inside the housing 10.
Since the positional relationship between the two will change, it is necessary to adjust the position of the inner lid 20 as well.

Incidentally, the housing 10 houses power distribution members such as breakers that require a handle or the like to be exposed from the inner cover 20, and power distribution members that do not have parts exposed from the inner cover 20 such as electromagnetic contactors. If there is no exposed part from the inner lid 20, it is necessary to provide a large distance between the bottom of the housing 10 and the inner lid 20, so the housing 10 designed for these electrical devices is 10.
When storing a power distribution member with a low mounting height inside, the height of the mounting plate 21 to which the power distribution member is attached from the bottom surface of the casing 10 is adjusted. The mounting plate 21 is fixed at a fixed position inside the casing 10 with both ends held by a holding frame 23 inserted through a plurality of fixing bolts 22 protruding from the bottom surface of the casing 10. The inner lid 20 is supported by a support 24 interposed between the inner lid 20 and the mounting plate 21.

That is, when adjusting the position of the door 12 or when attaching a low-height power distribution member to the mounting plate 21 in a deep casing 10, it is necessary to adjust the distance from the bottom of the casing 10 to the inner lid 20. Therefore, it is necessary to adjust the length of the struts 24 or the mounting height of the mounting plate 21. Conventionally, the lengths of the struts 24 are made according to the height, or the fixing bolts 22 are The holding frame 23 is made to have a special shape so that the holding frame 23 is lifted from the bottom of the casing 10 by a desired amount. However, in the former case, there is a disadvantage that a large number of types of supports 24 are required, resulting in high costs, and in the latter case, the load of the mounting plate 21 is supported only by the fixing bolts 22. Therefore, there was a problem that sufficient support strength could not be obtained.

[Purpose of the invention] The present invention has been made in view of the above points, and its main purpose is to adjust the height of the inner cover from the bottom of the casing. To provide a structure in which the height position of a mounting plate can be adjusted without changing its length and has sufficient strength without being supported only by fixing bolts.

[Disclosure of the invention] (Examples) Examples of the invention will be described below based on the drawings. As shown in FIGS. 1 to 3, a door frame 11 is attached to the opening edge of a casing 10 that opens at the front, and a door 12 is screwed to one side edge of the door frame 11 via a hinge 17. Ru. The door 12 is provided with an opening/closing handle 16, and by operating the opening/closing handle 16 with the flap 12 closed, the door 12 can be locked in the closed state. Housing 10
An inner flange piece 13 extends inside the opening edge of the door, and a horizontal piece 14 extending inside the door frame 11 is placed on this inner flange piece 13. The height adjustment screw 15 screwed into the housing 10
The height of the door frame 11 can be adjusted relative to the door frame 11. A mounting plate 21 to which a power distribution member (not shown) such as a breaker or an electromagnetic contactor is attached is housed within the casing 10 . The mounting plate 21 is installed between the spacers 1 on a pair of holding frames 23 into which a plurality of fixing bolts 22 protruding from the bottom surface of the housing 10 are inserted, with the spacer 1 interposed therebetween. The retaining frame 23 is fixed in position within the housing 10 by a fixing nut 28 that threads onto the fixing bolt 22. A position adjustment plate 26 is interposed between the bottom of the housing 10 and the holding frame 23, and this position adjustment plate 26
The position of the fixing bolt 22 can be adjusted slightly in the axial direction by adjusting the amount of engagement of the position adjusting nut 27, which contacts the lower surface of the position adjusting plate 26, with the fixing bolt 22. The mounting plate 21 is divided into a plurality of parts, for example, three parts, in the longitudinal direction of the holding frame 23, and a pillar 24 is provided protruding from the mounting plate 21 in correspondence with the end of the holding frame 23. An inner lid 20 is attached to cover the front surface of the electricity distribution member to which the mounting plate 21 is attached. As shown in FIG. 3, a handle 25 of a power distribution member such as a breaker is exposed from the inner lid 20.

By the way, as shown in FIGS. 4 to 6, the spacer 1 is formed into a rectangular tube shape by bending a sheet metal. The front half of the rear piece 3 is extended, and the rear half of the rear piece 3 is extended from the other side piece 2, and a notch 4 is formed at the lower end of each side piece 2 to connect the tip of the rear piece 3 with the notch. 4 are engaged. The length of the spacer 1 in the axial direction is shorter than the length of the side edge of one mounting plate 21. The front piece 5 of the spacer 1 has a pair of screw holes 3 with female threads cut on the inner peripheral surface.
1 are formed spaced apart in the axial direction of the spacer 1, and the distance is an integral multiple of the pitch of a plurality of screw holes (not shown) formed at predetermined intervals in the holding frame 23. . Both screw holes 3
A through hole 32 serving as a fastener insertion part into which a screwdriver is inserted is formed between spacer 1, and a notch 32 serving as a fastener insertion part into which a screwdriver etc. is inserted is formed at one end of the spacer 1 in the axial direction. A portion 33 is formed. A through hole 3 is provided in the rear piece 2 of the spacer 1.
A long groove 34 is formed at a position corresponding to 2, and a through hole 35 into which a screw is inserted is formed at a position corresponding to the notch 33. Here, the long groove 34 and the through hole 3
5 is an integral multiple of the pitch of the screw holes formed in the holding frame 23, and is equal to the distance between the pair of screw holes 31 formed in the front piece 5. long groove 3
4 is a screw receiving portion 36 having a width approximately equal to the screw diameter;
and an introduction part 37 that is continuous with the screw receiving part 36 and faces one end edge of the spacer 1 in the axial direction. Spacer 1 in front piece 5
The distance from one end edge of the spacer 1 in the axial direction to one screw hole 31 is approximately equal to the distance from the other end edge of the spacer 1 in the rear piece 3 in the axial direction to the through hole 35,
Further, the distance from the other edge of the front piece 5 to the other screw hole 31 is approximately equal to the distance from one edge of the rear piece 3 to the end of the long groove 34.

Therefore, when interposing the spacer 1 between the holding frame 23 and the end of the mounting plate 21 as described above, the holding frame 23 is fixed in the longitudinal direction as shown in FIG. Lightly screw the screw 38 into one screw hole of the holding frame 23 at a position different from the position of the holding bolt 24 so that the screw head is slightly lifted from the holding frame 23. A screw 38 is introduced into the screw receiving part 36. In this state, the through hole 35
Insert the screw 38 into the spacer 1 from the notch 33.
Screw the screw 38 into the screw hole of the holding frame 23 using a screwdriver or the like inserted into the slot, and then insert the screw introduced into the screw receiving part 36 of the long groove 34.
A screwdriver or the like inserted into the spacer 1 through the through hole 32 is used to screw it into the screw hole of the holding frame 23. Here, even if the pitch of the screw hole formed in the holding frame 23 does not match the distance between the through hole 35 formed in the spacer 1 and the long groove 34, the length range of the screw receiving part 36 of the long groove 34 is maintained. If so, it is now possible to absorb that deviation. By interposing the spacer 1 between the holding frame 23 and the mounting plate 21 as described above,
Only the mounting plate 21 with the spacer 1 inserted into the housing 1
It is possible to rise from the bottom of 0. If it is desired to further raise the mounting plate 21 from the bottom of the housing 10, the spacers 1 may be stacked in two or more layers as shown in FIG. The spacers 1 can be stacked on top of each other. That is, when the spacers 1 are stacked in multiple stages, the spaces between the through holes 35 and the long grooves 34 are set to be approximately equal to the spaces between the pair of screw holes 31. Adjacent spacers 1 can be combined by this.

In the above-described embodiment, the spacer 1 is formed into a rectangular prism shape by bending a sheet metal, but the spacer 1 can be formed using a pipe material having a rectangular or circular cross section.
may be formed. Furthermore, in the above example, the spacer 1 is interposed between the holding frame 23 and the side edge of the mounting plate 21;
0 is of a normal depth, the mounting plate 21 is attached to the holding frame 2 without intervening the spacer 1 as before.
It is sufficient to attach it directly to 3.

[Effects of the invention] As mentioned above, the present invention has a spacer interposed between the holding frame and the side edge of the mounting plate. Through-holes and long grooves are formed at intervals that are an integral multiple of the pitch of a plurality of screw holes formed at predetermined intervals in the longitudinal direction, and into which screws that can be screwed into the holding frame are inserted. At least a pair of screw holes are formed in the longitudinal direction of the holding frame at an interval approximately equal to the distance between the through hole and the long groove, and each of the screw holes has a female thread on the inner peripheral surface into which the screw can be screwed. A screw fastener for tightening the screw inserted into the through hole and the long groove is inserted into a part other than between the screw holes and facing the through hole, and a part between both screw holes and facing the long groove. Each fastener insertion portion is formed, and the distance from one end edge to the through hole in the axial direction of the spacer is set approximately equal to the distance from the other end edge to one screw hole, so that the distance from the bottom of the casing is When adjusting the height position of the inner lid, by inserting a spacer between the mounting plate and the holding frame to adjust the height position of the mounting plate, there is no need to change the length of the support.
Furthermore, since the mounting plate is supported by the spacer, the support strength is increased. In addition, since the spacing between the through holes and long grooves and the spacing between the pair of screw holes are set to be approximately equal, when stacking spacers in multiple stages, it is possible to stack the spacers in order and connect adjacent spacers with screws. In addition, fastener insertion portions into which screw fasteners for tightening the screws inserted into the through hole and the long groove are inserted are formed in the region facing the through hole and the region facing the long groove, respectively. The distance from one end edge to the through hole in the axial direction of the spacer is set approximately equal to the distance from the other end edge to one screw hole, so when stacking multiple spacers, the end faces of adjacent spacers This has the advantage of being able to align them on substantially the same plane, allowing them to be joined with great strength, and providing a beautiful appearance.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is an external perspective view of the same as above, Fig. 3 is an external perspective view of the same with the door open, Fig. 4 a is a perspective view of the spacer used in the above, and Fig. 4 b is a developed view of the spacer used in the above. , FIG. 5 is a front view of the spacer used in the above, FIG. 6 is a side view of the spacer used in the same, FIG. 7 is a side view of the main part showing how the spacer is attached to the holding frame, and FIG. A sectional view showing another embodiment, and FIG. 9 is a sectional view showing a conventional example. 1 is a spacer, 3 is a rear piece, 5 is a front piece, 10 is a housing, 20 is an inner lid, 21 is a mounting plate, 22 is a fixing bolt, 23 is a holding frame, 24 is a column, 31 is a screw hole, 32 is a 33 is a notch, 34 is a long groove, and 35 is a through hole.

Claims (1)

[Scope of utility model registration request] It consists of a casing that opens at the front, a mounting plate that is placed at the bottom of the casing to which a power distribution member such as a breaker is attached, and a casing that protrudes forward from the bottom of the casing at positions corresponding to both side edges of the casing. a holding frame that is inserted through the base of the fixing bolts and runs along the side edges of the mounting plate at positions corresponding to both side edges of the mounting plate; and a holding frame and the side edges of the mounting plate. The spacer has a rectangular cylindrical shape, and the rear piece has a plurality of screw holes formed at predetermined intervals in the longitudinal direction of the holding frame, each having an integral multiple of the pitch of the spacer. Through-holes and long grooves are formed in the front piece, spaced apart at intervals, through which screws that can be screwed into the holding frame are inserted, and inner holes are formed in the front piece at intervals approximately equal to the distance between the through-holes and the long grooves in the longitudinal direction of the holding frame. At least a pair of screw holes each having a female thread into which the above-mentioned screw can be screwed is formed on the circumferential surface, and at a portion of the front piece other than between the two screw holes and facing the through hole and between the two screw holes. A through hole and a fastener insertion portion into which a screw fastener for tightening a screw inserted into the long groove is inserted are formed in the portion facing the long groove, and the distance from one end edge of the spacer in the axial direction to the through hole is and the distance from the other edge to one screw hole are set to be approximately equal.