JP2552771B2 - Louver assembly - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to louver assemblies.

[0002]

2. Description of the Related Art In hot air heaters and the like, a louver is provided at a hot air outlet to regulate the blowing direction, but such a louver is fixed by attaching a plurality of louvers to connecting members arranged on both sides. And are integrated. Particularly, the gas water heater is mainly installed indoors, and the exhaust port formed above the combustion chamber is provided with a metal exhaust hood made of a louver assembly. This exhaust hood makes it possible to smoothly discharge the combustion gas generated in the combustion chamber,
In order to prevent the temperature rise of hanging cabinets and the like placed above the gas water heater, prevent natural rise of hot air, etc., and change the discharge direction of combustion gas and hot air, the exhaust hood has
A plurality of louvers provided with a certain angle to the upper side is provided. These louvers are arranged at intervals such that the heat exchanger and the like cannot be seen through from above in order to satisfy the standards that are specified so that the heat exchanger and the like inside cannot be seen through from above the gas water heater. The louvers are inserted into and fixed to a groove formed in a connecting member such as a metal plate arranged on both sides of each louver so as to be integrated.

[0003]

As described above, in the louver assembly, since a plurality of louvers are conventionally integrated by a connecting member, the number of parts and the number of assembling steps are large.
As a result, the production cost is increased and the dimensional accuracy tolerance must be increased in order to assemble each component, which causes a problem of large variations in products.

It is an object of the present invention to provide a louver assembly which is inexpensive and has little variation.

[0005]

According to the present invention, claim 1
A plurality of substantially strip-shaped long plates for forming a plurality of louvers, and the plurality of long plates arranged on both sides in the long side direction of the plurality of long plates and connected by a part of both short sides of the long plate. Is integrally formed on one metal plate with a set of connecting portions arranged in the short side direction ,
A ventilation passage is formed between the plurality of louvers and
The number of louvers cannot be seen through from the direction perpendicular to the array direction.
Bending to reduce the length in the array direction to enable
The technical means is to form a part in each of the connecting parts . Also, claim 2 is the same as claim 1
Note that each of the connecting portions is paired with the plurality of louvers in the arrangement direction.
Second for setting tilt angles of the plurality of louvers
The technical means is to form the bent portion.

[0006]

In the present invention, the plurality of louvers are integrally formed with the connecting portion, and when the connecting portions are bent, a predetermined angle is given to each louver so that a ventilation passage is formed between the louvers. , Are arranged substantially in the short side direction. In this way, each louver and the connecting portion are integrally formed, and the louver assembly can be formed only by bending the connecting portion.

[0007]

According to the present invention, the connecting portion is bent.
This shortens the total length of the connecting part,
Secures ventilation passages at intervals between louvers that are angled
Since it can be narrowed in the closed state,
Perspective, for example, is it a direction perpendicular to the arrangement direction of each louver?
It is possible to make it impossible to see through them. Moreover, since it is not necessary to assemble the louver and the connecting portion, the number of processing steps is reduced. Therefore, the cost can be reduced. In addition, since it is not necessary to allow dimensions for assembly and the louvers are angled and the air passages are arranged at intervals by bending the connecting portion, the dimensional accuracy is improved.

[0008]

EXAMPLES Next, the present invention will be explained based on examples. FIG. 2 shows a wall-mounted gas water heater 1 capable of tapping hot water by a soft touch operation. A gas burner (not shown) is provided inside the main body cover 2, and a water tube type heat exchanger 3 heated by the gas burner is arranged above the gas burner as shown in FIG. The heat exchanger 3 is provided with a large number of fins 3a, and the heat exchanger 3 is surrounded together with the fins 3a by a cylindrical combustion casing 4 forming a combustion chamber, and the exhaust port 4a is provided at the upper end of the combustion casing 4. The exhaust port 4a is covered with the exhaust hood 10 from above.

In the exhaust hood 10, a plurality of strip-shaped louvers 11 are arranged in the direction of the short side, and between the louvers 11, a combustion gas of a gas burner or hot air after extinguishing is smoothly gas heater. 1, an exhaust passage 12 is formed so that the louvers 11 can be discharged to the outside, and a plurality of louvers 11 are integrally formed with a connecting portion 13 for connecting the louvers 11 and are provided in the heat exchanger 3. It is fixed to the heat exchanger 3 at the connecting portion 13 via a fixing leg member (not shown).

As shown in FIG. 3, the exhaust hood 10 has 1
The number of louvers 11 corresponding to the number of louvers 11 on the one metal plate is smaller than the number of louvers 11 by one, and each louver 1 is formed.
1. A bending groove 15 for bending the connecting portion 13 so as to give a predetermined angle to 1 is cut out as a continuous groove having a substantially H shape, and further, each louver 11 and the connecting portion 13 are formed. Ribs 16 for reinforcement are respectively formed in the connecting portions of the ridges, and as the folding processing portion in the connecting portion 13, mountain folding processing portions 13a1 and 13a2 shown by broken lines in FIG. 3 and valley folding processing shown by a dashed line There are sections 13b , 13b1 and 13b2 . Where
Of these processing parts, the processing parts 13a1 and 13b1 are
As a processing part for shortening the length of the louver 11 in the arrangement direction
And the processing portions 13a2 and 13b2 are provided in each louver 1
The second for setting the tilt angle with respect to the arrangement direction of 1
It is provided as a bent portion.

The bending angle in each bending process is as shown in FIG. 1, each louver 11 is arranged at a predetermined angle, and the upper end of each louver 11 is located below the adjacent louver 11. Located on the vertical edge.
As a result, each louver 11 forms a continuous projection surface with the adjacent louvers 11, and the exhaust hood 10 covers the internal heat exchanger 3 as shown in FIG. When viewed, the heat exchanger 3 etc. does not appear.

In the gas water heater 1, a pipe cover 5 is provided below the main body cover 2, and the pipe cover 5 is provided.
On the surface of, the water supply switch 6 for instructing the start and stop of the water supply operation, the temperature control slide lever 7 for adjusting the hot water temperature by adjusting the amount of water supply, and the heating by the gas burner at the time of water supply. A hot / cold water changeover switch 8 for selecting whether or not it is provided. Like the so-called sheet switch, the water supply switch 6 is covered with a sheet on the surface and has no irregularities, and has electrical contacts inside. Therefore, the main body cover 2 can be easily wiped and cleaned without any obstacles, and when removing the main body cover 2 when inspecting a burner or the like, it is not necessary to remove the knobs or the levers of the respective switches. , Easy to do.

Below the pipe cover 5, the heat exchanger 3 is provided.
A flexible hot water outlet pipe 9 connected to the hot water outlet pipe 9 is provided, and a shower head 9a having a water flow switching mechanism is provided at the end of the hot water outlet pipe 9.

In the gas water heater 1 of the present embodiment having the above-mentioned structure, when the water supply switch 6 is operated, the water valve (not shown) is opened to start the water supply.
When hot water is selected by, the fuel gas is supplied to the governor in accordance with the water flow and the ignition operation is performed to ignite the gas burner, the water is heated by the heat exchanger 3, and the hot water is showered from the shower head 9a. leak. During the combustion of the gas burner, the combustion gas is discharged into the exhaust passage 1 of the exhaust hood 10.
It passes through 2 and is discharged. At this time, the exhaust direction of the combustion gas is directed by the louver 11. When the water supply switch 6 is operated during water supply, the water supply is stopped, and if the gas burner is burning, the fuel supply is simultaneously stopped and the fire is extinguished. After extinguishing the fire, the hot air due to the residual heat of the gas burner or the heat exchanger 3 rises by natural convection, but the exhaust direction is directed by the louver 11 of the exhaust hood 10. Therefore, hot air does not directly hit the hanging cabinet or the like installed above the gas water heater 1.

As described above, according to the present invention, since the louver and the connecting portion are integrally formed in the exhaust hood, the cost can be reduced and the dimensional accuracy can be improved. In this case, the exhaust passage is secured for the exhaust gas and the like required for the exhaust hood, and the internal heat exchanger and the like do not appear in the projection from above. In the above-mentioned embodiment, the lower end of each louver and the upper end of the adjacent louver coincide with each other in the vertical direction, but when projected, an overlapping portion may occur. When the louver assembly of the present invention is used in a warm air heater, the louver assemblies may be set so that they do not overlap at all and the inside can be seen.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing the inside of a gas water heater according to an embodiment of the present invention.

FIG. 2 is a front view of a gas water heater showing an embodiment of the present invention.

FIG. 3 is a development view of an exhaust hood in a gas water heater showing an embodiment of the present invention.

FIG. 4 is a plan view of a gas water heater according to an embodiment of the present invention.

[Explanation of symbols]

 10 exhaust hood (louver assembly) 11 louver (plural louvers) 12 exhaust passage (ventilation passage) 13 connecting portion 13a1 mountain fold processing portion (folding portion) 13a2 mountain fold processing portion (second folding portion) 13b1 valley folding processing Part (folding part) 13b2 Valley folding part (second bending part)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 62-147290 (JP, A) JP 1-137153 (JP, A) Actual development Sho 58-188540 (JP, U) Actual public 2- 41759 (JP, Y2)

Claims (2)

(57) [Claims] 1. A plurality of substantially rectangular strips for forming a plurality of louvers, and a plurality of strips arranged on both sides in the long side direction of the plurality of strips and connected by a part of both short sides of the strip. A set of connecting portions for arranging the plurality of long plates in the short side direction are integrally formed on one metal plate, and a ventilation passage is formed between the plurality of louvers and the plurality of louvers are formed.
The number of louvers cannot be seen through from the direction perpendicular to the array direction.
Bending to reduce the length in the array direction to enable
A part is formed on each of the connecting parts.
A louver assembly. 2. The plurality of louvers are connected to each of the connecting portions.
The tilt angles of the plurality of louvers with respect to the arrangement direction are set.
A second bent portion for fixing is formed.
The louver assembly according to claim 1.