JPH0717174Y2 - Electronic equipment storage box mounting structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a mounting structure of an electronic device storage box that houses electronic devices therein and is mounted on a panel surface of a switchboard, a control panel, etc. Regarding the structure.

[Conventional technology]

This kind of electronic equipment storage box has a bottomed rectangular tube with built-in electronic equipment and the like, and a detachable mounting bracket on the outer peripheral surface, the opening surface of which is a cover formed by bending four sides into a shallow box body. A space for filling the sealing material is formed between the inner peripheral surface of the bent portion of the shallow box-shaped cover portion and the outer peripheral surface of the bottomed rectangular tubular portion. ing. FIG. 6 is a side view of a conventional electronic equipment storage box, FIG. 7 is a front view taken along the arrow P of FIG. 6, and FIG. 8 is a rear view taken along the arrow Q of FIG. In the figure, reference numeral 1 denotes a bottomed rectangular tube portion in which an electronic device (not shown) is housed, and an opening surface is closed by a cover portion 2. When mounting such an electronic device storage box on a panel surface such as a switchboard or a control panel, the bottomed rectangular tube portion 1 is inserted into the through hole 3a of the panel 3 so that the edge of the bent portion of the cover portion 2 is attached to the panel surface. The mounting bracket 4 is attached to the outer peripheral surface of the bottomed square tubular portion 1, and then the push screw 4a is tightened to mount the mounting bracket 4. FIG. 9 is an enlarged sectional view taken along the line AA of FIG. 8 and shows a mounting relationship between the electronic device storage box, the panel 3, and the panel 3. That is, the sealing material 6 is put in the space 5 between the inner peripheral surface of the bent portion of the cover part 2 of the electronic device storage box and the outer peripheral surface of the bottomed rectangular tube part 1, and the bottomed part of the electronic device storage box in that state is inserted. After inserting the rectangular tube portion 1 into the through hole 3a of the panel 3, the mounting metal fitting 4 with the push screw 4a loosened is attached to the outer peripheral surface of the bottomed rectangular tube portion 1, and the tip of the sealing material 6 and the push screw 4a are attached. The panel 3 is sandwiched by the tip. In such a state, as shown in FIG. 10, when the push screw 4a is turned and tightened as indicated by the arrow C, the sealing material 6 is compressed and closely adheres to the panel 3 surface, and exhibits a dustproof and dripproof sealing function. be able to.

[Problems to be solved by the device]

In the conventional electronic device storage box, since the mounting brackets 4 mounted on the outer peripheral surface of the bottomed rectangular tube portion 1 are provided at a plurality of locations,
If the push screw 4a is properly tightened at the position where the mounting bracket 4 is mounted, the seal material 6 is appropriately compressed and deformed, and the panel 3
If there is sufficient close contact with the surface, but there is a large gap between the mounting position of the mounting bracket 4 and the mounting position of the other mounting bracket 4 next to it, the sealing material 6 is less likely to be compressed and deformed at that position and adheres to the panel 3 surface. Is insufficient and the sealing function is also insufficient. Therefore, in order to make the sealing function of the entire circumference of the cover 2 sufficient,
The push screw 4a must be tightened more strongly than shown in Fig. 10. If the push screw 4a is tightened too strongly, the side surface of the cover part 2 near the mounting position of the mounting bracket 4 is deformed in the direction indicated by the arrow D as shown in FIG. 11, and proper compression deformation of the sealing material cannot be obtained. There was a problem that the protection structure was not sufficient.

In view of the problems described above, an object of the present invention is to provide a structure in which the cover portion is not deformed even if the tightening force of the push screw in the mounting bracket is slightly exceeded.

[Means for Solving the Problems]

In this invention, an electronic device is housed inside, and a bottomed rectangular tube portion provided with a mounting metal fitting having a push screw on the outer peripheral surface and a bottomed rectangular tube portion formed by bending four sides into a shallow box body. An electronic device storage box in which a surface is closed and a cover portion having a space for filling a sealing material between the inner peripheral surface of the bent portion of the shallow box body and the outer peripheral surface of the bottomed rectangular tubular portion is integrated. In a structure in which a panel is sandwiched between the bent edge of the shallow box and the tip of a push screw of the mounting bracket, the inner surface of the bent section of the shallow box and the outer circumference of the bottomed rectangular tubular body A plurality of reinforcing ribs are erected between the surface and the surface, and the height of this reinforcing rib is the same as the height of the bent part edge of the shallow box body. The pressing force of the push screw is shared.

[Operation] A reinforcing rib is installed between the inner peripheral surface of the bent portion of the shallow box-shaped cover and the outer peripheral surface of the bottomed rectangular cylinder, and the height of this reinforcing rib is set to that of the shallow box. The height of the bent part is the same as the height of the bent part, and the pressing force of the push screw is shared by the bent part edge of the shallow box and the reinforcing ribs. The bending portion and the reinforcing ribs can share the work, preventing the deformation of the cover portion and maintaining the sealing effect for dustproof and dripproof.

〔Example〕

1 to 5 show an embodiment of the present invention,
The same parts as those of the conventional electronic device storage box shown in FIGS. 6 to 11 are designated by the same reference numerals and the description thereof will be omitted.

FIG. 1 is a side view of an electronic equipment storage box according to an embodiment of the present invention, FIG. 2 is a front view taken along arrow R of FIG. 1, and FIG. 3 is a rear view taken along arrow S of FIG. The embodiment is different from the conventional example in that a plurality of reinforcing ribs 7 are provided between the inner peripheral surface of the bent portion of the cover portion 2 and the outer peripheral surface of the bottomed rectangular tubular portion 1.

When mounting such an electronic device storage box on a panel surface such as a switchboard or a control panel, the bottomed rectangular tube portion 1 is inserted into the through hole 3a of the panel 3 so that the edge of the bent portion of the cover portion 2 is attached to the panel surface. The mounting bracket 4 is attached to the outer peripheral surface of the bottomed square tubular portion 1 and then the pressing screw 4a is tightened to mount the mounting bracket 4.
FIG. 4 is an enlarged cross-sectional view taken along the line BB of FIG. 3, and is a side sectional view showing a mounting relationship between the electronic device storage box and the panel 3. That is, the sealing material 6 is put in the space 5 between the inner peripheral surface of the bent portion of the cover part 2 of the electronic device storage box and the outer peripheral surface of the bottomed rectangular tube portion 1, and the bottomed rectangular tube portion 1 is placed in that state. Panel 3
Inserted into the through hole 3a. At this time, the tip of the sealing material 6 projects from the tip of the reinforcing rib 7 and the tip of the bent portion of the cover 2. Next, the mounting bracket 4 with the push screw 4a loosened is attached to the outer peripheral surface of the bottomed rectangular tube portion 1 so that the panel 3 is sandwiched between the protruding tip of the sealing material 6 and the tip of the push screw 4a. . In such a state, as shown in FIG. 5, by turning the push screw 4a as shown by the arrow E and tightening it, the sealing material 6
Is compressed and properly adheres to the panel 3 surface, and the front edge of the bent portion of the cover portion 2 makes light contact with the panel 3 surface, and the reinforcing rib 7
The tip of the push button 4a serves as a stopper and the push screw 4a is not tightened any more, and at this point the attachment of the electronic device storage box to the panel 3 is completed.

[Effect of device]

In this invention, a plurality of reinforcing ribs are installed between the inner peripheral surface of the bent portion of the cover portion and the outer peripheral surface of the bottomed rectangular tube portion, and the height of the reinforcing ribs is set to the bent portion of the shallow box body. The height is the same as that of the rim, and the pressing force of the push screw is shared by the bent edge of the shallow box and the reinforcing ribs, so that the mounting bracket mounted on the outer peripheral surface of the square cylinder with a bottom can be pushed. Even if the screw is tightened, the tip of the reinforcing rib acts as a stopper and the tightening of the push screw is restricted.In this state, the sealing material is compressed and properly adheres to the panel surface, and the sealing function is sufficiently maintained. The edge of the tip of the bent portion is only slightly contacted with the panel surface, and the side surface of the cover is not deformed outward.

[Brief description of drawings]

FIG. 1 is a side view of an electronic equipment storage box according to an embodiment of the present invention, FIG. 2 is a front view as seen from an arrow R in FIG. 1, and FIG. 3 is a rear view as seen in an arrow S in FIG. The figure is a side sectional view showing the mounting relationship between the electronic equipment storage box and the panel by enlarging the cross section taken along the line BB in FIG. 3, and FIG. 5 is the electronic equipment storage box in which the push screw is tightened in the state of FIG. FIG. 6 is a side sectional view of a state in which the panel is completely attached to the panel, FIG. 6 is a side view of a conventional electronic device storage box, FIG. 7 is a front view taken along the arrow P of FIG. 6, and FIG. A rear view taken along the arrow Q, FIG. 9 is a side sectional view showing the mounting relationship between the electronic equipment storage box and the panel by enlarging the cross section taken along the line AA of FIG. 8, and FIG. The side cross-sectional view of the state in which the push screw is tightened and the electronic equipment storage box is completely attached to the panel, and Fig. 11 shows the state of Fig. 10 and the push screw is further tightened to deform the cover part. It is a side sectional view showing the state. 1: Bottomed square tube part, 2: Cover part, 4: Mounting bracket, 5: Space, 6: Seal material, 7: Reinforcing rib.

Claims (1)

[Scope of utility model registration request] 1. A bottomed rectangular tube portion having an electronic device housed inside and a mounting metal fitting having a push screw on an outer peripheral surface thereof, and a shallow bottom box formed by bending four sides. Device in which a cover portion having a space for filling a sealing material between the inner peripheral surface of the bent portion of the shallow box body and the outer peripheral surface of the bottomed rectangular tubular portion is integrated by closing the opening surface of the portion In a structure in which a storage box is attached by sandwiching a panel between the bent portion edge of the shallow box body and the tip of a push screw of the mounting bracket, the inner peripheral surface of the bent portion of the shallow box body and the bottomed rectangular tube A plurality of reinforcing ribs are installed between the outer peripheral surface of the body and the height of the reinforcing ribs is the same as the height of the bent portion edge of the shallow box body, and A mounting structure for an electronic device storage box, characterized in that the reinforcing ribs share the pressing force of the pressing screw.