JP2002325316A - Waterproof type case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case preventing infiltration of waterdrops. SOLUTION: The waterproof type case is provided with a bottom plate 11a and a side plate 11b standing erect from the bottom plate 11a, a box 1 containing a roof section 12 with an extendedly installed polymer 12c which copolymerizes with a edge of the upper side plate 11b, a box shaped cap 2 for blocking an opening 11c through an edge 22a covering outer circumference of the side plate 11b, a contact line 11d for contacting inside the upper edge 22a of the cap 2 along the horizontal direction of the upper side plate 11b, and a drain hole 3 for draining water toward the standing directional rear anchor side between the roof section 12 and the upper side plate 11b. In the roof section 12, the polymer 12c is tilted downwardly, so that the facing clearance between the polymer 12c and the upper edge 22a of the cap 2 will be narrower at the standing directional rear anchor side, and a waterdrop guide part 12d is extendedly installed downward from the top of the extendedly installed direction for the polymer 12c.

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 storing electric equipment and used in a wet place.

[0002]

2. Description of the Related Art Conventionally, as this type of waterproof case, there is one disclosed in Japanese Patent Laid-Open No. 9-204841.
As shown in FIG. 6, this has a rectangular bottom plate 101 disposed along the vertical direction and a side plate 102 erected from the periphery of the bottom plate 101, and the upper side plate 1
The roof portion 10 is formed by extending the overlapping piece 103a that overlaps with the edge portion of the side plate 102 from the front end side to the base end side in the standing direction of the side plate 102.
3 and an opening 1 on the front end side in the standing direction of the side plate 102 having an edge 201 covering the outside of each side plate 102.
A box-shaped lid 200 that closes 02a is provided.

The lid 201 covers the outer side of the upper side plate 102 and, among the edges 201 of the lid 200, the upper edge 201 facing the overlapped piece 103a of the roof 103.
The contact strip 102b that contacts the inner surface of the upper side plate 102
Is provided along the left-right direction, and water penetrating from between the upper edge 201 of the lid 200 and the overlapping piece 103a of the roof 103 is drained from the distal end side of the side plate 102 in the standing direction to the proximal end side. The drainage space 300 is provided between the roof 103 and the upper side plate 102.

[0004] This is composed of a roof 103 and an upper side plate 1.
02 is prevented from entering through the opening at the distal end of the side plate 102 by the abutment strip 102b, and through the drainage space 300 from the distal end in the standing direction of the side plate 102 to the proximal end. And pull it out.

[0005]

In the conventional waterproof case described above, water that has entered between the roof portion 103 and the upper side plate 102 is subjected to the opening 102 at the tip of the side plate 102.
a, the bottom plate 101 and its bottom plate 1 are prevented from entering the inside through the contact strip 102b.
It is possible to protect the electric devices arranged in the space formed by the side plates 102 erected from the side.

However, the overlapping piece 10 of the roof 103
When the lid 103 is opened in a state where water droplets adhered along the lower side of the bottom plate 3a, the bottom plate 1
There is a risk that water droplets may enter the space defined by the side plate 102 and the bottom plate 101.

The present invention has been made in view of the above points, and an object of the present invention is to make it difficult for water droplets to adhere along the lower side of the overlapping piece of the roof portion, and to make the bottom plate and the bottom plate from the bottom plate. An object of the present invention is to provide a waterproof case that can prevent water droplets from entering a space formed by standing side plates.

[0008]

In order to solve the above-mentioned problems, a waterproof case according to the first aspect of the present invention is provided with a rectangular bottom plate arranged along the vertical direction and a standing edge from the periphery of the bottom plate. A box body having a roof portion having a side plate extending from the distal end side of the side plate in the standing direction to the base end side with a superposed piece overlapping the edge of the upper side plate in plan view, and the outside of the side plate. A box-shaped lid having an edge to cover and closing the opening on the front end side in the upright direction, and an upper edge of the edge of the lid facing the overlapped piece of the roof portion among the edges of the lid. Abutting strips that contact the inner surface are provided along the left-right direction of the upper side plate, and water that has entered from between the upper edge of the lid and the overlapping piece of the roof portion is directed toward the base end side in the standing direction. A waterproof case provided with a drain space for draining between the roof and the upper side plate. The roof portion inclines the polymer piece downward so that the facing distance between the polymer piece and the upper edge of the lid becomes smaller toward the base end side, and extends the polymer piece. The configuration is such that the water droplet guide piece extends downward from the tip in the installation direction.

The waterproof case according to the second aspect is the first aspect.
In the waterproof case described above, the lid is rotatably supported by one of the left and right side plates, and the abutting strip is closer to one of the side plates supporting the lid. One end in the left-right direction is located closer to the front end in the standing direction than the other end in the left-right direction.

[0010] The waterproof case according to the third aspect is the first aspect.
Alternatively, in the waterproof case according to claim 2, the upper side plate includes a contact piece having an abutting portion that abuts on an upper edge of the lid together with the abutting strip. Up to the contact strip.

[0011] The waterproof case according to the fourth aspect is the third aspect.
In the waterproof case described above, the connecting piece is connected to the roof.

[0012] The waterproof case according to the fifth aspect is the first aspect.
5. The waterproof case according to claim 4, wherein the upper side plate has the outer surface inclined such that the outer surface on the drain space side is lower toward the base end side in the standing direction. It has a configuration.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a waterproof case according to the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a box, and a box body 11 made of a metal plate.
And a roof 12. The box body 11 includes a rectangular bottom plate 11a and four side plates 11b erected from four edges of the bottom plate 11a, respectively.
An opening 11c is formed at the front end side in the standing direction of b.
The bottom plate 11a is arranged along the vertical direction as shown in FIG. 1 by attaching the waterproof case 10 to a wall surface of a building or the like. As a result, among the four side plates 11b, , One side plate 11b is the upper side plate 1
1b, two opposing side plates 11b are left and right side plates 11b, and one side plate 11b is a lower side plate 11b.

The upper side plate 11b is formed so as to be thinner toward the base end side than the front end side in the upright direction.
Since the outer surface on the side is inclined, the outer surface is lower on the base end side than on the distal end side in the standing direction. The upper side plate 11b has an abutting strip 11d that abuts on an inner surface of an upper edge 22a of the lid 2 described later. Are provided along the left-right direction as shown in FIG. The contact strip 11d is provided so as to gradually approach the opening 11c from near the right end, which is one end in the left-right direction, and the right end is located near the opening edge. That is, the right end, which is one end in the left-right direction, is located closer to the front end in the standing direction of the side plate 11b than the left end, which is the other end in the left-right direction. Right side plate 11b
Is a supporting portion 11e that rotatably supports a lid 2 described later.
Is provided.

The roof portion 12 is extended from the box 1, and the uppermost piece 12a, the uppermost piece located at the uppermost position when the bottom plate 11a of the box 1 is disposed along the vertical direction. There is an overlapping piece 12b extending from the distal end side to the base end side in the standing direction of the side plate 11b so as to overlap with the upper side plate 11b in plan view from the upper side plate 12b, and side pieces 12c hanging from both sides of the uppermost piece 12a. Then, as shown in FIG. 1, the middle part in the left-right direction is formed in a J-shaped cross section. This roof 12
The tip of the overlapping piece 12b is inclined downward, and as a result, the overlapping piece 12b and the upper edge 22 of the lid 2 which will be described later.
The distance between the side plate 11a and the side plate 11a becomes smaller toward the base end side of the side plate 11b in the standing direction. The overlapping piece 12b has a water droplet guiding piece 12d extending downward from the leading end in the extending direction.

The roof 12 and the upper side plate 11b
Is formed between the upper edge 22a of the lid 2
And water that has penetrated from between the superposed piece 12b of the roof portion 12,
The drainage space 3 is drawn along the outer surface of the upper side plate 11b toward the base end side of the side plate 11b in the standing direction.

In this box 1, a circuit breaker 30 is attached to a bottom plate 11a via a mounting bracket 20, and the bottom plate 11
The circuit breaker 30 is disposed in a space defined by a and a side plate 11b erected from the bottom plate 11a. The handle 30a of the circuit breaker 30 protrudes from the opening 11c at the end of the side plate 11b in the standing direction. What is provided in the waterproof case 10 is not limited to the circuit breaker 30.

Reference numeral 2 denotes a lid, which is formed in a shallow box shape in which a wall 22 is erected around a rectangular bottom 21 in a plan view, and has a bow shape such that the center of the bottom 21 in the longitudinal direction is deep. As described above, the lid 2 is supported by the support portion 11e provided on the right side plate 11b in a state where the bottom plate 11a is disposed along the vertical direction.
Is rotatably supported so as to close off.

When the cover 11 closes the opening 11c, the edge 22a, which is the tip of the wall 22, is attached to the side plate 11b.
And the upper edge 22a is opposed to the overlapping piece 12b of the roof 12 described above.

In such a waterproof case, the polymer piece 1
2b is inclined downward so that the overlapping piece 12b and the lid 2
Is gradually narrowed toward the base end side of the side plate 11b in the upright direction, so that even if water droplets adhere below the overlapping piece 12b of the roof portion 12, the water droplets The gap between the overlapping piece 12b and the upper edge 22a of the lid 2 is moved to the base end side of the side plate 11b in the standing direction by capillary action,
Further, the water flows along the water droplet guide piece 12d extending downward from the tip of the overlapping piece 12b of the roof portion 12 in the extending direction, and flows into the drainage space 3 provided between the roof portion 12 and the upper side plate 11b. Therefore, water drops adhering to the underside of the overlapping piece 12b of the roof portion 12 can be reduced, so that even when the lid 2 is opened, the bottom plate 11a and the bottom plate 11a are erected from the opening 11c at the tip of the side plate 11b. It is difficult for water drops to enter the space formed by the side plate 11b.

One side plate 11b supporting the lid 2
The one end in the left-right direction of the contact strip 11d is located closer to the tip of the side plate 11b in the standing direction than the other end in the left-right direction. Due to the capillary action of the gap formed between the upper edge 22a and the overlapping piece 12b of the roof 12, the overlapping piece 12 of the roof 12
b, the water droplets attached to one side plate 11b move toward the one side plate 11b, and even if the water droplets attached to the one side plate 11b gradually increase and fall, the side plate 1
Since it falls to the base end side in the standing direction of 1b, it is possible to further exert the effect that it is difficult for water droplets to enter from the opening 11c at the tip of the side plate 11b.

Since the outer surface of the side plate 11b on the drainage space 3 side is inclined downward so as to be lower toward the base end of the side plate 11b in the standing direction, water flowing into the drainage space 3 is Along the outer surface of the side plate 11b, it is easy to flow toward the base end side in the standing direction.

Next, a second embodiment of the waterproof case of the present invention will be described below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and only different points from the first embodiment will be described. The present invention is basically the same as that of the first embodiment, except that the upper side plate 11b has a contact portion 13a that contacts the inner surface of the upper edge 22a of the lid 2 together with the above-mentioned contact strip 11d. The connected piece 13 is provided continuously from the contact strip 11d to the drainage space 3. The connecting piece 13 is formed in a flat plate shape similar to the cross section of the side opening of the drainage space 3, and is connected to the outer surface of the upper side plate 11b from the contact strip 11d toward the base end of the side plate 11b in the standing direction. Has been established. The connecting piece 13 has a contact portion 13a in which one end, which is a connecting base portion, comes in contact with the upper edge 22a of the lid 2 closer to the opening edge than the contact portion by the contact strip 11d. ing. The connecting piece 13 is also provided on the roof 12 to partition the drainage space 3 in parallel with the side of the roof 12 as shown in FIG.

In this waterproof type case, in addition to the effect of the first embodiment, the water droplets flowing into the water drainage space 3 through the water droplet guide pieces 12d are continuously provided from the contact strip 11d. Since it flows along the piece 13 and flows reliably to the base end side of the side plate 11b in the standing direction, it is possible to further exert an effect that water droplets hardly enter the opening 11c at the tip of the side plate 11b.

Since the connecting piece 13 is connected to the roof 12, the strength of the roof 12 can be reinforced.
The roof 12 is less likely to be damaged.

[0027]

According to the first aspect of the present invention, the tip of the overlapping piece is inclined downward so that the distance between the overlapping piece and the upper edge of the lid is closer to the base end of the side plate in the standing direction. Even if water droplets adhere to the roof underneath the overlapping piece, the water drops cause the gap between the overlapping piece and the upper edge of the lid by capillary action, so that the side plate stands upright. Moved to the base end side, and further transmitted down the water droplet guide piece extending downward from the tip of the overlapping piece of the roof section in the extending direction, into the drainage space provided between the roof section and the upper side plate Since it flows, water droplets attached below the polymerized piece on the roof can be reduced, and therefore, even when the lid is opened, the space formed by the bottom plate and the side plate erected from the bottom plate from the opening at the end of the side plate. Water droplets are less likely to enter.

In the waterproof case according to the second aspect, the one end in the left-right direction of the contact strip which is close to the one side plate supporting the lid is located closer to the tip of the side plate in the standing direction than the other end in the left-right direction. Because it is located, when the lid is opened, it adheres to the lower part of the roof overlap due to the capillary action of the gap formed between the upper edge of the lid and the roof overlap. Even if the dropped water drops move to one side plate and the water droplets attached to one side plate gradually increase and drop, they fall to the base end side of the standing direction of the side plate rather than the abutment, so the tip of the side plate The effect according to claim 1, in which water droplets hardly penetrate from the opening, can be further obtained.

In the waterproof case according to the third aspect, the water droplets flowing through the water droplet guide pieces and flowing into the drainage space are transmitted through the connecting pieces continuously provided from the abutment strips, and the base end of the side plate in the standing direction. Since the water flows reliably to the side, it is possible to further achieve the effect according to claim 1, in which water droplets hardly enter the opening at the end of the side plate.

The waterproof case according to the fourth aspect is the third aspect.
In addition to the effect of the waterproof case described above, since the connecting piece is continuously provided on the roof, the strength of the roof can be reinforced and the roof is less likely to be damaged.

The waterproof case according to the fifth aspect is the first aspect.
In addition to the effect according to any one of claims 4 to 6, the outer surface of the side plate on the drainage space side is inclined downward so that the lower end is closer to the base end in the standing direction of the side plate. The water that has flowed along the outer side surface of the side plate is more likely to flow toward the base end side in the standing direction.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a first embodiment of the present invention.

FIG. 2 is a plan sectional view showing an abutting strip of the above.

FIG. 3 is a plan sectional view showing a support state of the lid of the above.

FIG. 4 is a partial side sectional view of a second embodiment of the present invention.

FIG. 5 is a partial rear view showing the connecting piece according to the first embodiment;

FIG. 6 is a side sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 11a Bottom plate 11b Side plate 11c Opening 11d Abutment line 12 Roof 12b Polymerization piece 12d Water droplet guide piece 13 Serial piece 13a Abutment part 2 Lid 22a Edge 3 Drain space

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masahiko Okano 737-12, Anata-cho, Seto-shi, Aichi F-term in Owari Matsushita Electric Works, Ltd. 5G016 AA03 CC02 CG23

Claims (5)

[Claims] 1. A rectangular bottom plate disposed along a vertical direction and side plates erected from the periphery of the bottom plate, and a superimposed piece overlapping with an edge of the upper side plate in plan view is formed on the side plate. A box body having a roof extending from the front end side to the base side in the erection direction, and a box-shaped lid body having an edge portion covering the outside of the side plate and closing the opening at the front end side in the erection direction When,
Along the left and right sides of the upper side plate, there is provided an abutting strip that abuts on the inner surface of the upper edge of the lid that faces the overlapped piece of the roof among the edges of the lid. A waterproof case provided between the roof and the upper side plate with a water drainage space for draining water intruding from between the edge portion of the roof and the overlapped piece of the roof toward the standing direction base end side, The roof portion inclines the polymer piece downward so that the facing distance between the polymer piece and the upper edge of the lid becomes smaller toward the base end side in the upright direction, and extends the polymer piece. A waterproof case, wherein a water droplet guide piece extends downward from a front end in a direction. 2. The lid is rotatably supported by one of the left and right side plates, and the abutting strip is provided in a lateral direction near one of the side plates supporting the lid. The waterproof case according to claim 1, wherein one end is located closer to the front end in the standing direction than the other end in the left-right direction. 3. The upper side plate is provided with a connecting piece having a contact portion that comes into contact with an upper edge of the lid together with the contact strip from the contact strip to the drainage space. The waterproof case according to claim 1 or 2. 4. The waterproof case according to claim 3, wherein the connecting piece is connected to the roof. 5. The upper side plate according to claim 1, wherein the outer surface is inclined such that the outer surface on the drain space side is lower toward the base end side in the standing direction. The waterproof case described in.