JPH09204841A - Waterproof case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exhaust water penetrated from a gap of a cover body to the outside to prevent the penetration of the water to the inside of a box body by forming a groove and a fitting projection in a fitting part of the cover body to the box body. SOLUTION: Even if water is penetrated from a gap between a cover body 4 and a box body 1 and overflows a fitting projection 51, water is collected in a groove 53. When the water level is raised than the projection 51, the water is exhausted from the gap between the projection 51 and a cover body 4 to the outside, and the penetration of the water from an inside projection 52 to the inside of the box body 1 is prevented. By forming a roof 8 extending to the upper part of the cover body 4 from a upper side plate 1a, rain water is hardly entered from the gap between the side plate la and the cover body 4, waterproofing effect is enhanced. The projection 52 is formed in the whole circumference of the box body 1, a water drawing out hole 54 communicating with the groove 53 and a cover side water drawing out hole 55 matching to the hole 54 are formed in the projection 51 of a lower side plate 1b and the cover body 4, and water in the groove 53 is made flow to the outside of the box body 1. A mountain shape having a peak in the central part of the projection 52 of the side plate 1a is formed, and water in the groove 53 in this part is smoothly made flow to drop out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof case for accommodating electric equipment or the like and used in a place with water.

[0002]

2. Description of the Related Art A first conventional example is shown in FIG. In other words, this waterproof case is composed of the bottom plate 102 and the bottom plate 102.
A box body 100 having side plates 103 provided upright on the periphery of
A step portion 1 having a lid body 101 and on which an edge portion of the lid body 101 is placed.
04 and the fitting projection 105 fitted inside the lid 101
Is provided at the opening edge of the side plate 103.

A second conventional example (for example, actual Kaihei 5-62125)
No.) is shown in FIG. That is, this waterproof case
The box body 100 is provided with a tall outer wall 107 on the outside of the side wall 103 via a groove 106, and the drain hole 10 is provided on the bottom surface of the groove 106.
8 are formed. On the other hand, the lid 101 has a fitting portion 108 that fits in the groove 106 and a crown piece 109 that covers the outer wall 107.

[0004]

The first prior art example has a drawback that water enters the inside of the box body 100 through the gap between the step portion 104 and the fitting projection 105 and the lid body 101. . In the second conventional example, since the fitting portion 108 is fitted in the groove 106, there is no space for storing water in the groove 106,
Therefore, the side plate 1 is passed through the gap between the box body 100 and the lid body 101.
There was a risk that the water would flow over 03 to the bottom plate side inside the box 100.

Therefore, an object of the present invention is to provide a waterproof structure that can prevent water from quickly draining outside the box body and entering the inside of the box body even if water enters through the gap between the box body and the lid body. It is to provide a mold case.

[0006]

A waterproof case according to claim 1, wherein a box body having a bottom plate attached to a wall surface of a building and side plates standing upright on the periphery of the bottom plate, and the bottom plate of the box body. A lid for closing an opening formed on the opposite side, a step portion for mounting an edge portion of the lid body at an opening edge of the side plate, and a fitting for fitting inside the edge portion of the lid body Inside the fitting ridge of a side plate having a ridge at the opening edge of the side plate and located at least on the ceiling side of the building among the side plates and the vertically extending side plate, An inner protrusion protruding outward from the opening is provided in parallel with the fitting protrusion through a groove.

According to the waterproof type case of the first aspect, even if water enters from the gap between the lid and the box and exceeds the fitting protrusion, the water is accumulated in the groove and the water level of the water accumulated in the groove is increased. When the height is higher than the fitting protrusion, water is discharged to the outside through the gap between the fitting protrusion and the lid body, and water is prevented from entering the inside of the box from the inner protrusion. In particular, when the inner side ridge of the box is not provided on the ground side plate, water easily falls to the outside from the lower end of the groove through the gap between the box and the lid, and the water in the groove extending in the vertical direction enters the groove. Easy to flow along.

The waterproof case according to claim 2 is the same as that according to claim 1.
In the above, the box body is provided with a roof extending above the lid body from a side plate on the ceiling side of the building. Claim 2
According to the waterproof case described above, in addition to the effect of claim 1,
Rainwater is less likely to enter through the gap between the side plate and the lid of the box on the ceiling side of the building, and the waterproof effect is enhanced.

The waterproof case according to claim 3 is the same as that according to claim 1.
In, the inner protrusion has the entire circumference of the box body, the fitting protrusion of the side plate on the ground side is formed with a water drain hole communicating with the groove, and the lid side aligned with the water drain hole The drainage hole is formed in the lid. According to the waterproof type case of claim 3, in addition to the effect of claim 1, the water accumulated in the groove smoothly flows out of the box body through the water draining hole and the lid side water draining hole, so that the drainage effect is good. .

The waterproof case according to claim 4 is the case according to claim 1.
In the above, the inner protrusion of the side plate on the ceiling side is formed in a mountain shape having a central portion as a top portion approaching the ceiling side. According to the waterproof case according to claim 4,
In addition to the above effect, the water accumulated in the groove on the ceiling side smoothly flows into the groove extending in the vertical direction and easily falls downward.

According to a fifth aspect of the present invention, in the waterproof case according to the first aspect, the second aspect, the third aspect or the fourth aspect, the drainage elastic body is closely accommodated in the groove and is held by the lid body. According to the waterproof type case of claim 5, in addition to the effect of claim 1, claim 2, claim 3 or claim 4,
One end of the drainage elastic body comes into close contact with the groove, and the other end comes into close contact with the inner surface of the lid body, so that water is blocked by the drainage elastic body and is less likely to enter the inside of the box body. In addition, since it is an elastic body, it is easy to mount it in the groove and to make liquid-tight contact.

The waterproof case according to claim 6 is formed on a box body having a bottom plate attached to a wall surface of a building and side plates standing upright on the periphery of the bottom plate, and on a side of the box body opposite to the bottom plate. A lid for closing the opening, and a side plate located on the ground side among the side plates of the box body and a ridge for mounting an edge portion of the lid on the side plate extending in the up-down direction. An inner projecting piece that projects outward from the opening and is located on the inner surface of the lid body is provided on the entire circumference of the box body and parallel to the projecting piece through a groove inside the projecting piece. The box body has a roof extending above the lid body from the side plate located on the ceiling side of the building.

According to the waterproof type case of the sixth aspect, when water enters through the gap between the lid and the box, water is accumulated between the ridge and the groove. When the height is higher than that of the ribs, water is drained to the outside from between the edge of the lid and the ribs. Therefore, even if water enters through the gap between the box body and the lid body, it is possible to prevent the water from quickly draining outside the box body and entering the inside of the box body.

The waterproof case according to claim 7 is the same as that according to claim 6.
The water drainage hole is provided on the ground side of at least one of the protrusion and the groove. According to the waterproof case of the seventh aspect, in addition to the effect of the sixth aspect, the water accumulated in the groove can smoothly flow out of the box body through the drain hole. The waterproof case according to claim 8 penetrates from the opening side to the wall surface side of the building between the side plate located on the ceiling side of the building and the roof according to claim 6 or 7. It has a through hole.

According to the waterproof case of the eighth aspect, in addition to the effect of the sixth or seventh aspect, water that has entered between the roof and the inner ridges smoothly passes through the through hole from the wall surface side of the building. Be drained. The waterproof case according to claim 9,
In Claim 8, the upper surface of the side plate located on the ceiling side of the building is inclined toward the ground side from the opening side to the bottom plate side.

According to the waterproof case of the ninth aspect, the water can be drained more smoothly to the outside of the box than the effect of the eighth aspect.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this waterproof case has a box body 1 and a lid body 4. The box body 1 has a bottom plate 6 attached to a wall surface (not shown) of a building and side plates 1 a to 1 d provided upright on the periphery of the bottom plate 6, and a lid body 4
Closes the opening 5 formed on the side of the box 1 opposite to the bottom plate 6.

Then, a step portion 50 on which the edge portion of the lid 4 is placed is provided at the opening edge of the side plates 1a to 1d, and a fitting ridge 51 which fits inside the edge portion of the lid 4 is provided on the side plates 1a to 1d. An inner projection 52 that is provided at the opening edge of the inside of the side plates 1a to 1d and projects outward of the opening 5 from the fitting projection 51 in parallel with the fitting projection 51 through the groove 53. There is. Further, the box body 1 is provided with a roof 8 extending above the lid body 4 from the side plate 1a on the ceiling side of the building, and the inner protrusions 52a of the side plate 1a on the ceiling side have a central portion 52a 'on the ceiling side as shown in FIG. Is formed in a mountain shape with a top portion approaching the top, and the step portion 50 on the ceiling side is aligned with the inner protrusion 52a,
The fitting protrusion 51 and the groove 53 are also formed in parallel with the inner protrusion 52a so as to have the same shape as the inner protrusion 52a.

Further, the inner protrusion 52 is provided on the entire circumference of the box body 1, and the groove 53 is formed in the fitting protrusion 51 of the side plate 1c on the ground side.
A water drain hole 54 communicating with the lower end position of the vertically extending portion is formed, and a lid side water drain hole 55 matching the water drain hole 54 is formed in the lid body 4 by a notch. In the box body 1, 7 is a wire passage portion, 11 is a circuit breaker mounting portion, and 19 is a lid body 4.
, 20 is a keyhole, and 25 is a bearing.

Reference numeral 2 is a circuit breaker using an earth leakage breaker, and a screw (not shown) inserted into the mounting hole 18 of the box body 1.
Is attached to the breaker mounting portion 11 of the bottom portion 6.
In this circuit breaker 2, 14 is an operation handle and 15
Is a terminal, 16 is an earth leakage test push-button switch, and 17 is a display section for displaying a protrusion when an electric leakage current flows. A display handle 3 includes a flat plate portion 28 having sandwiching pieces 26 and 27 on both sides, a handle portion 29 having a concave portion 22 that engages with the operation handle 14, and an on / off display portion 30 and 3.
1 and an elongated hole 32 exposing the earth leakage test push button switch 16 and the display unit 17.

In the lid 4, 20 'is a key hole which is aligned with the key hole 20, 35 is a bearing, 36 is a shaft which fits into the bearings 25 and 35, 37 is an engaging portion which engages with the locking portion 19, and 39 is A transparent cover, 40 is a handle, and 41 is a waterproof packing. Reference numeral 9 is a holding member.
(FIG. 2) is a bottom plate placed on the circuit breaker mounting part 11 of the bottom part 6, 12 is a side plate, 13 is a mounting hole, and 9a is a holding part.
The circuit breaker 2 is mounted on the bottom plate 10 and the mounting holes 18, 1
It is attached to the attaching portion 11 by means of screws through 3. Further, the holding pieces 26, 27 of the display handle 3 are slidably held by the holding portion 9a, and the operation handle 14 is engaged with the engaging portion 22 at this time. The display handle 3 is operated by opening the lid 4.

According to the first embodiment, even if water enters from the gap between the lid 4 and the box 1 and exceeds the fitting protrusion 51, the water is accumulated in the groove 53, and the water accumulated in the groove 53. When the water level becomes higher than the fitting protrusion 51, water is discharged from the gap between the fitting protrusion 51 and the lid body 4 to prevent water from entering the inside of the box 1 from the inner protrusion 52. To do. Also, the side plate 1 on the ceiling side of the building
Since the roof 8 that extends above the lid 4 from a is provided, it becomes difficult for rainwater to enter through the gap between the side plate 1a and the lid 4, and the waterproof effect can be enhanced.

Further, the inner projection 52 is provided on the entire circumference of the box body 1, and the fitting projection 51 of the side plate 1a on the ground side is formed with a water drain hole 54 communicating with the groove 53. Since the matching lid-side drainage holes 55 are formed in the lid body 4, the water accumulated in the groove 53 smoothly flows out of the box body 1 through the drainage holes 54 and the lid-side drainage holes 55, so that the drainage effect is good. . Further, since the inner side protrusions 52 of the side plate 1a on the ceiling side are formed in a mountain shape with the central portion as the top portion approaching the ceiling side, the water accumulated in the groove 53 on the ceiling side smoothly extends in the vertical direction.
It flows to 3 and tends to fall downward.

A second embodiment of the present invention is shown in FIGS. 8 and 9. That is, this waterproof case is an example in which the inner side protrusions 52 facing the side plate 1b on the ground side of the box body 1 are not provided in the first embodiment, and the side protrusions 51 and the fitting protrusions 51 are provided on the side plate 1b. Only the step portion 50 is formed. Further, the groove 53 is formed only on the side plate 1a on the ceiling side and the side plates 1c and 1d extending in the vertical direction, and the lower end portion 5 of the groove 53 on both sides is formed.
3a is open as shown in FIG.

Therefore, water is likely to fall from the lower end of the groove 53 through the gap between the box body 1 and the lid body 4, and the water in the groove 53 extending in the vertical direction easily flows down along the groove 53. Other configurations and operational effects are similar to those of the first embodiment. A third embodiment of the present invention is shown in FIG. That is, in this waterproof case, in the first embodiment, the drainage elastic body 57 such as rubber is closely accommodated in the groove 53 and pressed by the inner surface of the lid 4. Reference numeral 58 denotes a pressing ridge 58 of the drainage elastic body 57, which is formed on the inner surface of the lid 4.

For this reason, one end of the drainage elastic body 57 is provided with the groove 5
3 and the other end is closely attached to the inner surface of the lid 4,
The water is blocked by the draining elastic body 57, so that it is difficult for the water to enter the inside of the box body 1. Further, since it is an elastic body, it is easy to mount it in the groove 53 and it is easy to make liquid-tight contact. Other configurations and operational effects are similar to those of the first embodiment. The fourth of the present invention
An embodiment of the above is shown in FIGS. That is,
Similar to the first embodiment, this waterproof case is a box body 1 having a bottom plate 6 attached to a wall surface (not shown) of a building and side plates 1a to 1d provided upright on the periphery of the bottom plate 6.
And a lid 4 for closing an opening 5 formed on the opposite side of the bottom plate 6 of the box body 1, and the box body 1 extends above the lid body 4 from a side plate 1a located on the ceiling side of the building. Have eight.

Among the side plates 1a to 1d of the box body 1, the side plate 1b located on the ground side and the side plate 1 extending in the vertical direction.
Protrusions 80 on which the edges 81 of the lid 4 are placed are provided on c and 1d. In the embodiment, the side plates 1b and 1c extend over the entire length, but as shown in FIG. 14, the side plates 1d are formed only in the middle part except the upper and lower end parts in the vertical direction in consideration of the bearings 25 and 35. ing. In addition, the opening 5
Inner protrusion 82 protruding on the outside of the lid and located on the inner surface of the lid 4.
Is provided on the entire circumference of the box body 1 and is provided in parallel to the ridge 80 inside the ridge 80 via a groove 83. As a result, when water enters from the gap between the lid 4 and the box body 1, water accumulates between the ridge 80 and the groove 83, but when the water level of the accumulated water becomes higher than that of the ridge 80, Water is drained to the outside from between the edge 81 of the lid 4 and the ridge 80. Therefore, even if water enters from the gap between the box body 1 and the lid body 4, it is possible to prevent the water from quickly draining out of the box body 1 and entering the inside of the box body 1.

Further, as shown in FIG. 14, a drain hole 84 is provided on the ground side of the groove 83, so that the water accumulated in the groove 83 can smoothly flow out of the box body 1 through the drain hole 84. . Furthermore, the side plate 1 located on the ceiling side of the building
As shown in FIG. 13, a through hole 85 penetrating from the opening 5 side toward the wall surface side of the building is provided between the a and the roof 8, whereby the space between the roof 8 and the inner ridge 82 is formed. The water that has entered the wall is smoothly drained from the wall surface side of the building through the through hole 85.

Reference numeral 11 'denotes a female screw portion to which the mounting screw 60 of the side portion 46 is screwed, and 45 denotes an insulating holding member, which is formed in a U shape by the pair of side portions 46 and the connecting portion 47. 48 is a mounting piece provided on the side portion 46, 49 is a reinforcing rib,
51 is a hole of the connecting portion 47 through which the handle portion 29 is projected, 5
2 is a hanging piece, 53 is a guide protrusion for slidably holding the flat plate 28, 53a is an inclined surface for guiding when the flat plate 28 is engaged with the guide protrusion 53, 58 is an engaging portion of the operation handle 14, 61 Is a hole exposing the switch 16 and the status display unit 17, 63 is a rating display unit, 65 is a recess, 66 is an easily breakable part of the transparent cover 39, 67 is a frame-shaped groove around the periphery of the recess 65, and 68 is A ridge that fits into the groove 67 of the transparent cover 39, 70 and 71 are dew condensation preventing holes, 72 is a wall surface mounting hole of the bottom plate 6 of the box body 1, and 73 is a mounting screw of the circuit breaker 2. In addition, the same parts as those in the first embodiment are designated by the same reference numerals.

Although the drain hole 84 is formed on the ground side of the groove 83, it may be provided on the ground side of the protrusion 80. A fifth embodiment of the present invention is shown in FIG. That is, in this waterproof case, in the third embodiment, an inclined surface 1a 'that inclines toward the ground side from the opening 5 side to the bottom plate 6 side is formed on the upper surface of the side plate 1a located on the ceiling side of the building. As a result, it becomes easier to drain the water outside the box body 1 more smoothly than in the fourth embodiment. Others are the same as the third embodiment.

The inclined surface 1a 'is provided only on the upper surface of the side plate 1a.
However, it is also possible to form the entire side plate 1a obliquely and form the inclined surface 1a 'on the upper surface thereof.

[0032]

According to the waterproof case of the first aspect,
Even if the water penetrates through the gap between the lid and the box and exceeds the fitting ridge, the water accumulates in the groove, and if the water level in the groove becomes higher than the fitting ridge, the fitting ridge and the lid Water is discharged to the outside from the gap of and prevents water from entering the inside of the box from the inner protrusion. In particular, when the inner side ridge of the box is not provided on the ground side plate, water easily falls to the outside from the lower end of the groove through the gap between the box and the lid, and the water in the groove extending in the vertical direction enters the groove. Easy to flow along.

According to a second aspect of the present invention, in the first aspect, the box body has a roof extending above the lid body from a side plate on the ceiling side of the building.
In addition to the above effect, rainwater is less likely to enter through the gap between the side plate and the lid of the box on the ceiling side of the building, and the waterproof effect can be enhanced. According to the waterproof type case of claim 3, according to claim 1, the water which communicates with the groove by having the inner protrusion on the entire circumference of the box body and by the fitting protrusion of the side plate on the ground side. Since the drain hole is formed and the lid side water drain hole which is aligned with the water drain hole is formed in the lid body, in addition to the effect of claim 1, the water accumulated in the groove is removed from the water drain hole and the lid side water drain hole. The water drains smoothly because it flows out of the box smoothly.

According to a fourth aspect of the present invention, in the first aspect, the inner protrusion of the side plate on the ceiling side is formed in a mountain shape having a central portion as a top portion approaching the ceiling side. In addition to the effect of item 1, the water collected in the groove on the ceiling side easily flows into the groove extending vertically and easily drops downward. According to the waterproof type case of claim 5, in claim 1, claim 2, claim 3 or claim 4, since the draining elastic body is tightly housed in the groove and held by the lid, In addition to the effect of claim 2, claim 3 or claim 4, one end of the draining elastic body is in close contact with the groove and the other end is in close contact with the inner surface of the lid body, so that water is blocked by the draining elastic body and the box body is formed. Difficult to penetrate inward. In addition, since it is an elastic body, it is easy to mount it in the groove and to make liquid-tight contact.

According to the waterproof type case of the sixth aspect, when water enters through the gap between the lid and the box, water accumulates between the ridge and the groove, and the water level of the accumulated water is When the height is higher than that of the ribs, water is drained to the outside from between the edge of the lid and the ribs. Therefore, even if water enters through the gap between the box body and the lid body, it is possible to prevent the water from quickly draining outside the box body and entering the inside of the box body.

According to the waterproof type case of the seventh aspect, in addition to the effect of the sixth aspect, the water accumulated in the groove can smoothly flow out of the box body through the drain hole. Claim 8
According to the waterproof case described in claim 6, claim 6 or claim 7.
In addition to the effect of, the water that has entered between the roof and the inner ridge is smoothly drained from the wall side of the building through the through hole.

According to the waterproof type case of the ninth aspect, the water can be drained more smoothly to the outside of the box than the effect of the eighth aspect.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention with a display handle removed in an opened state.

FIG. 2 is an exploded perspective view thereof.

FIG. 3 is a cross-sectional view of a waterproof case.

FIG. 4 is a partially enlarged front view of the box body.

FIG. 5 is a perspective view of a waterproof case.

FIG. 6 is a bottom view.

FIG. 7 is a right side view.

FIG. 8 is a cross-sectional view of the second embodiment.

FIG. 9 is a front view of the lid open state.

FIG. 10 is a cross-sectional view of a third embodiment.

FIG. 11 is a perspective view of a fourth embodiment.

FIG. 12 is a perspective view of the lid open state.

FIG. 13 is a sectional view.

FIG. 14 is a plan view of an opened state.

FIG. 15 is a cross-sectional view in a direction orthogonal to FIG.

FIG. 16 is an exploded perspective view.

FIG. 17 is a partial cross-sectional view of the fifth embodiment.

FIG. 18 is a partial cross-sectional view of a first conventional example.

FIG. 19 is a partial cross-sectional view of a second conventional example.

[Explanation of symbols]

 1 Boxes 1a to 1d Side plates 4 Lids 6 Bottom plates 8 Roofs 50 Steps 51 Fitting projections 52 Inner projections 53 Grooves 54 Water draining holes 55 Lid side water draining holes 57 Draining elastic bodies 80 Projections 81 Edges 82 Inner Ridge 83 Groove 84 Drain hole 85 Through hole

Claims (9)

[Claims] 1. A box body having a bottom plate attached to a wall surface of a building and side plates standing upright on the periphery of the bottom plate, and a lid body closing an opening formed on the side of the box body opposite to the bottom plate. The side plate has a stepped portion on which the edge of the lid is placed, and the side plate has a fitting protrusion that fits inside the edge of the lid. A side plate located on the ceiling side of the building and a side plate extending in the up-and-down direction inside the fitting ridge, and an inner ridge projecting outward of the opening from the fitting ridge is provided with a groove. A waterproof type case having a parallel to the fitting protrusion. 2. The waterproof case according to claim 1, wherein the box body is provided with a roof extending above the lid body from a side plate on the ceiling side of the building. 3. The inner protrusion is provided on the entire circumference of the box body,
The waterproof type according to claim 1, wherein a water draining hole communicating with the groove is formed in the fitting protrusion of the side plate on the ground side, and a lid side water draining hole aligned with the water draining hole is formed in the lid body. Case. 4. The waterproof case according to claim 1, wherein the inner protrusion of the side plate on the ceiling side is formed in a mountain shape having a central portion as a top portion approaching the ceiling side. 5. The waterproof case according to claim 1, claim 2, claim 3, or claim 4, wherein a draining elastic body is tightly housed in the groove and held by the lid. 6. A box body having a bottom plate attached to a wall surface of a building and side plates erected on a peripheral edge of the bottom plate, and a lid body closing an opening formed on the side of the box body opposite to the bottom plate. A side plate located on the ground side among the side plates of the box body and a protrusion for mounting an edge portion of the lid on the side plate extending in the up-down direction, and projecting outward of the opening from the protrusion. The inner ridge located on the inner surface of the lid has the entire circumference of the box and has parallel to the ridge on the inside of the ridge through a groove, and the box is of the building. A waterproof case having a roof extending above the lid from the side plate located on the ceiling side. 7. The waterproof case according to claim 6, wherein a drain hole is provided on the ground side of at least one of the protrusion and the groove. 8. A through hole that penetrates from the opening side toward the wall surface side of the building between the side plate located on the ceiling side of the building and the roof.
Waterproof case described. 9. The waterproof case according to claim 8, wherein the upper surface of the side plate located on the ceiling side of the building is inclined toward the ground side from the opening side to the bottom plate side.