JP6865964B2 - Weather cover - Google Patents

Description

The present invention is a type of weather cover that is inserted and installed from the indoor side into a mounting port formed in a building such as a factory or a building. Specifically, it stabilizes the flow of gas discharged to the outside, and further, through the weather cover. The present invention relates to a weather cover that eliminates the concern of inhaling rainwater in rainy weather for the purpose of taking in outside air indoors (for covering the air intake).

Among the conventionally known weather covers, there are those described in Patent Documents 1 and 2 below.

The weather covers described in these publications can be inserted and installed from the indoor side into the mounting openings formed in the building.

For a general weather cover that is attached to a building from the outdoor side, the installation work becomes a high place work if the attachment port is at a high position on the wall of the building.

A small weather cover can be installed without much difficulty even when working at heights, but a large weather cover is difficult to install from the outdoor side even with a solid foothold, increasing the risk of work. ..

On the other hand, the type of weather cover that is installed by inserting it into the mounting port from the indoor side has the advantage that the problem is solved and even a large cover can be safely mounted.

Japanese Unexamined Patent Publication No. 8-4-2880 Jitsukaisho 62-20422 No.

The weather cover described in Patent Document 1 has two opposing side walls, a curved wall that closes the upper part and the front part of the space between the two side walls, and an end portion on the side to be placed indoors (hereinafter, this is considered as a rear end). It is a hood-like cover with a substantially fan-shaped side view, which is composed of a flange for fastening provided in the above, and has no bottom wall, and the lower surface of the portion protruding to the outside is almost in the same plane as the lower surface of the mounting port. It is an intake / exhaust port that allows exhaust and intake to enter and exit.

In the weather cover of Patent Document 1, in the application of covering the exhaust port, the exhaust gas flows along the curved wall and is ejected downward from the opening. At this time, the exhaust is a mixture of a component that changes direction downward along the curved wall and a component that tries to go straight in the horizontal direction, so that a part of the exhaust is along the outer surface of the curved wall immediately after exiting the opening. The flow is easily disturbed because it rolls up.

Since the weather cover is provided for the purpose of preventing rainwater from entering and softening the external wind pressure, it is not preferable because the effect of softening the wind pressure is weakened when the exhaust flow is disturbed.

In addition, when the outside air is taken into the building in rainy weather through the weather cover, the rainwater that has fallen on the cover slides down on the curved wall to reach the lower edge of the curved wall, and drips downward from there.

In this situation, this is also not preferable because the water droplets are transferred to the flow of the outside air sucked by the ventilation fan and enter the room.

In the weather cover described in Patent Document 2, since the portion arranged outdoors is bent downward, there is no concern about turbulence of exhaust gas or suction of rainwater in rainy weather for the purpose of covering the intake port.

However, this weather cover needs to be attached to the outer wall from the outside of the building in advance with a mounting frame referred to as a weather cover frame in the same document, and is installed in a building where the mounting frame is attached to the outer wall after construction of the outer wall. Cannot eliminate the dangerous work for mounting the mounting frame.

The present invention has been made in view of the above-mentioned current technology, and has improved a type of weather cover that is installed by inserting it from the indoor side into a mounting port formed in a building without using a mounting frame to be mounted from the outside. The challenge is to stabilize the flow of gas discharged from the weather cover to the outside, and to eliminate the concern of inhalation of rainwater in rainy weather for the purpose of covering the intake port.

In order to solve the above-mentioned problems, in the present invention, the weather cover is a weather cover that is inserted and installed from the indoor side into the mounting port provided on the wall of the building.
Two facing side walls having a side view shape with the upper corner on the tip side of the rectangular plate cut out so as to form a approximately 1/4 circle, and the upper and front parts of the space between the two facing side walls are closed, and the base end side is straight. The tip side is a curved wall that bends downward by approximately 90 °, the bottom wall that faces the straight base end side of the curved wall, and the mouth that is installed on the tip side of the bottom wall and is surrounded by a hood support surface. It is provided with a main body having a hole and a flange for fastening on the outer periphery of the rear end, and a movable hood having a rear portion rotatably attached to an inner surface near the tip of the bottom wall.
The tip of the movable hood is located behind the lower end of the curved wall and can freely appear and disappear from the mouth hole by rotation with the connecting portion as a fulcrum. Provided is a weather cover configured to project downward from the hood, to be supported by the hood support surface at the end point of the protrusion, and to create an opening inclined in the forward downward direction below the mounting port.

The weather cover can be provided with an insect repellent net on the movable hood to prevent insects from invading through the opening, if necessary.

It is preferable that the movable hood provided with the insect repellent net is detachably attached to the inner surface of the bottom wall of the main body portion by using an attachment that can be operated from the indoor side.

It is also preferable to provide the mouth hole at a position where the movable hood is separated from the outer surface of the wall of the building by a predetermined amount.

The movable hood is provided on two opposing side walls whose tip side height is higher than the height on the rear end side, front walls and rear walls provided at the front and rear ends between the two side walls, and the hood support surface. By forming the outer flange on which the movable hood is mounted, the protruding end point of the movable hood, that is, the position where the outer flange is mounted on the hood support surface can create the front-down opening.

The weather cover of the present invention is provided with a movable hood on the front side of the main body portion, and the movable hood is downward from the mouth hole of the edge frame fixed between the tip end portion of the bottom wall and the lower end portion of the curved wall portion. Since it creates an opening that protrudes and tilts in the downward-sloping direction, in applications that cover the exhaust port, the exhaust that is ejected from the opening flows down along the outer wall of the building and winds up along the outer surface of the curved wall. It becomes difficult and the flow becomes stable.

As a result, the effect of relieving wind pressure is stabilized, and unnecessary load is less likely to be applied to the ventilation fan or the like.

Further, in the application of covering the intake port, since the tip of the movable hood is behind the lower end of the curved wall, rainwater flowing down along the outer surface of the curved wall of the main body in rainy weather drips from the lower end edge of the curved wall. And do not move to the movable hood. Therefore, the situation where the rainwater flowing down the outer surface of the curved wall gets on the intake air and enters the room is surely prevented.

The weather cover in which the hood that creates the front-down opening is fixed to the main body cannot be inserted into the mounting port of the building and cannot be installed indoors. The weather cover of the present invention solved the problem by making the hood movable.

That is, since the movable hood can be freely retracted from the mouth hole, the weather cover can be inserted into the mounting hole from the indoor side with the movable hood immersed in the main body, and the installation regulation is lifted. There is.

In addition, by projecting the movable hood from the main body to the outside after passing through the mounting hole, an opening that descends forward and is recessed from the lower end of the curved wall is created below the mounting port and exhausted. It is possible to stabilize the flow of the air and prevent rainwater from entering during intake.

A weather cover with a movable hood equipped with an insect net can prevent insects from entering from outdoors to indoors, making it suitable for use in food factories and the like.

By attaching the weather cover provided with the insect repellent net to the main body so that it can be attached and detached from the indoor side, the insect repellent net can be regularly cleaned and replaced.

In addition, if the mouth hole is provided at a position where the movable hood is separated from the outer surface of the wall of the building by a predetermined amount, even if oil and water contained in the exhaust adhere to the inner surface of the main body, the adhesion thereof will occur. Sediment does not flow along the outer surface of the building wall, so there is no need to worry about soiling the wall.

It is sectional drawing which shows an example of the weather cover of this invention. It is a partial fracture side view which shows the state when the weather cover of FIG. 1 is inserted into a mounting opening from an indoor side. It is a perspective view of the weather cover of FIG. FIG. 5 is a cross-sectional view of the main body of the weather cover of FIG. 1 cut along a horizontal surface and viewed from above. It is a perspective view which shows the attachment state to the bottom wall of the main body part of the movable hood provided inside the weather cover of FIG. It is a perspective view which shows the state which the movable hood is removed from the bottom wall of a main body part. It is sectional drawing which shows the example which uses the flange provided on the outer periphery of the rear part of the main body part of the weather cover of this invention for attachment of a ventilation fan.

Hereinafter, embodiments of the weather cover of the present invention will be described with reference to FIGS. 1 to 7 of the accompanying drawings.

As shown in FIGS. 1 to 4, the illustrated weather cover 1 is a type of cover that is inserted and installed from the indoor side into the mounting port Mp provided on the wall W of the building, and includes the main body 2 and the movable hood. 3 and the insect repellent net 4 are combined.

The mounting port Mp may be either a hole directly drilled in the wall W or a hole reinforced by a mounting frame (not shown).

The main body 2 includes two side walls 5, 5 arranged to face each other, a curved wall 6 that closes the upper part and the front part of the space between the side walls 5, 5, a bottom wall 7, and the tip side of the bottom wall 7. It is configured by combining the mouth hole 8 provided in the above and the flange 9 for fastening.

The side wall 5 has a side view shape in which the upper corner on the tip end side of the rectangular plate is cut out so as to form a substantially 1/4 circle.

The curved wall 6 has a straight base end side (indoor side) 6a and a tip end side (outdoor side) 6b bent downward by approximately 90 °.

The bottom wall 7 is a wall facing the base end side 6a of the curved wall 6. The bottom wall 7, the base end side of the side wall 5, and the base end side 6a of the curved wall 6 form a square tube portion whose inside is a gas passage.

The mouth hole 8 is provided at the tip end portion of the bottom wall 7 that is connected to the curved wall 6. The mouth hole 8 is a hole surrounded by an inner flange-shaped hood support surface 8a, and the lower end side of the movable hood 3 is exposed to the outside from the main body 2 through the mouth hole 8.

The fastening flange 9 is provided on the rear portion of the main body portion 2, that is, on the outer periphery of the rear portion of the square tubular portion composed of the base end side of the bottom wall 7, the side wall 5, and the base end side 6a of the curved wall 6. ..

As shown in FIG. 1, the flange 9 can be used as an attachment for fixing the weather cover 1 to the wall W. The illustrated flange 9 includes the reinforcing plate 9a, but the reinforcing plate is unnecessary if the flange is thick enough to be processed separately from the main body and integrated with the main body.

As shown in FIG. 7, the flange 9 is used as a fitting for attaching the ventilation fan V to the weather cover 1, and is a joint for connecting a duct (not shown) installed indoors to the weather cover 1. It can also be used as a fitting.

When the flange 9 is used as a fitting for a ventilation fan or a joint for connecting a duct, as shown in FIG. 7, a mounting frame 10 made of angle steel or the like is formed at the entrance of a mounting port Mp formed in the wall W. Is installed, the main body 2 is inserted into the mounting frame 10, and the base end side (square tube portion) of the main body 2 is fixed to the mounting frame 10 with screws 11.

As shown in FIGS. 1 and 5, the movable hood 3 has two side walls 3a and 3a arranged so as to face the weather cover 1 shown so that the height h1 on the front end side is higher than the height h2 on the rear end side. And the front wall 3b and the rear wall 3c provided at the front end and the rear end between the two side walls 3a and 3a, and the outer flange 3d mounted on the hood support surface 8a around the mouth hole 8 of the bottom wall 7. The configured one is adopted.

The tip (right end in FIG. 4) of the movable hood 3 is located behind the lower end of the curved wall 6 (Be in FIG. 1), and the rear portion is attached to the inner surface near the tip of the bottom wall 7 (FIG. 1). It is attached using hinges 12). The hinge 12 is fixed to the main body 2 by using a fastener 14 which is a combination of a screw 14a and a nut 14b. The movable hood 3 can rotate around the hinge 12 as a fulcrum.

Due to the rotation, the movable hood 3 appears and disappears from the mouth hole 8. The weather cover 1 is inserted into the mounting port Mp from the indoor side with the movable hood 3 immersed inside the main body 2.

The immersive movable hood 3 is projected from the mouth hole 8 by its own weight at a position where the main body 2 is inserted into the mounting port Mp and the mouth hole 8 is moved outdoors. Then, the movable hood 3 is supported by the hood support surface 8a at the protruding end point, and an opening 13 inclined in the forward downward direction is created below the attachment port Mp.

The outer flange 3d of the movable hood 3 is provided on the outer periphery of the upper end of a plan-viewing rectangular hood frame composed of the side wall 3a, the front wall 3b, and the rear wall 3c, and is provided at the upper end of the movable hood protruding from the mouth hole 8. The outer flange 3d is placed on the hood support surface 8a, and the movable hood 3 is held at the protruding end point.

The example weather cover 1 is provided with a mouth hole 8 at a position where the rear end (rear wall 3c) of the movable hood 3 projects from the outer surface of the wall W to the outdoor side by a predetermined amount. As a result, even if the oil and water contained in the exhaust adhere to and accumulate on the inner surface of the main body 2 and flow out to the outside, the oil and water that have flowed out do not flow down along the wall surface, and the wall surface is contaminated by the flowing material. It doesn't happen.

The insect net 4 is installed inside the movable hood 3. This insect net is provided as needed and is not an essential element, but it is extremely preferable for a weather cover installed in a food factory or the like that dislikes the invasion of insects.

The exemplary movable hood 3 having the insect net 4 is detachably attached to the inner surface of the bottom wall 7 of the main body 2, and is removed from the indoor side to clean and replace the entire insect net 4 and the hood frame. Can be done.

For the weather cover 1 shown in the figure, the movable hood 3 can be attached and detached by freely inserting and removing the hinge pin 12a of the hinge 12, so that the two blade plates of the hinge 12 can be separated from each other. The movable hood 3 to which the blade plate of the above is fixed can be removed from the bottom wall 7.

The hinge pin 12a of the hinge 12 that can be inserted and removed is preferably urged in the insertion direction by using a wire spring 12b or the like.

As shown in FIG. 1, when the screw 14a passed through the screw hole of the main body 2 is prevented from coming off by the inner peripheral surface of the mounting port Mp, the movable hood 3 is attached to and detached from the main body 2 by removing the nut 14b. This can be done by removing the hinge 12 from the main body 2.

Further, the screw 14a passed through the screw hole of the main body 2 is press-fitted to the outer periphery of the screw so that it can be pulled out, and a temporary fixing washer for the screw formed of a soft resin or the like interposed between the nut 14b and the main body 2. The screw 14a can be prevented from falling out of the screw hole through which the screw is passed when the nut 14b is removed, and this structure can be used even if the wall W is a hollow wall. ..

After the weather cover 1 is inserted into the mounting port Mp from the indoor side and the installation is completed, a caulking process is performed on the outer surface side of the wall W to watertightly close the entrance of the gap formed between the mounting port Mp and the weather cover 1.

The work is done outdoors, but it is easier and less dangerous than the work of installing a heavy weather cover or mounting frame.

1 Weather cover 2 Main body 3 Movable hood 3a Side wall 3b Front wall 3c Rear wall 3d Outer flange 4 Insect repellent net 5 Side wall 6 Curved wall 6a Base end side 6b Tip side 7 Bottom wall 8 Mouth hole 8a Hood support surface 9 Flange 9a Reinforcing plate 10 Mounting frame 11 Screw 12 Flange 12a Hinge pin 13 Opening 14 Fastener 14a Screw 14b Nut W Building wall Mp Mounting port V Ventilation fan

Claims (5)

It is a weather cover that is inserted and installed from the indoor side into the mounting port (Mp) provided on the wall (W) of the building, and is provided with a main body (2) and a movable hood (3).
The main body (2) has two facing side walls (5, 5) having a side view shape in which the upper corner on the tip end side of the rectangular plate is cut out so as to form a substantially 1/4 circle, and the facing two side walls (5). , 5) A curved wall (6) that closes the upper part and the front part of the space, the base end side (6a) is straight and the tip end side (6b) is bent downward by about 90 °, and the curved wall (6). ) Facing the base end side (6a), the mouth hole (8) installed on the tip side of the bottom wall (7) and surrounded by the hood support surface (8a), and the rear It has a flange (9) for fastening on the outer circumference of the end.
The movable hood (3) is rotatably attached to the inner surface near the tip of the bottom wall (7), and the tip of the movable hood (3) is located behind the lower end of the curved wall. It is configured so that it can freely appear and disappear from the mouth hole (8) by rotating with the connecting portion as a fulcrum, and is supported by the hood support surface (8a) at the protruding end point, and the mouth hole (8) is the mounting port. The movable hood (3) protrudes downward from the mouth hole (8) at a position outside (Mp), and is supported by the hood support surface (8a) at the protruding end point and tilts in the downward direction. A weather cover configured to create an opening (13) below the mounting port (Mp). Before the movable hood (3) is provided between the opposite two side walls (3a, 3a) whose tip side height is higher than the height of the rear end side, and between the tips and rear ends of the two side walls (3a, 3a). The weather cover according to claim 1, which is composed of a wall (3b), a rear wall (3c), and an outer flange (3d) mounted on the hood support surface (8a). The weather cover according to claim 1 or 2, wherein the movable hood (3) is provided with an insect net (4) for preventing the invasion of insects from the opening (13). The weather cover according to any one of claims 1 to 3, wherein the movable hood (3) is detachably attached to the inner surface of the bottom wall (7) via a fixture that can be operated from the indoor side. The weather cover according to any one of claims 1 to 4, wherein the mouth hole (8) is provided at a position where the movable hood (3) is separated from the outer surface of the wall (W) of the building by a predetermined amount.

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