JPH09250788A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to suck up and exhaust lamp black or vapor or the like efficiently with a ventilator when cooking in a dining room or a living room where lamp black or vapor is generated and house the ventilator without interruption during an ordinal time. SOLUTION: The operation of an expansion mechanism expands a duct pipe 4 so that an air inlet 7 may be lowered and located directly over a spot at which lamp black or vapor or the like is generated, thereby discharging an exhaust gas with higher efficiency. If the duct pipe 4 is contracted with the operation of the expansion mechanism 5, the duct pipe 4 and the expansion mechanism 5 are housed inside a recessed area 2 and the recessed area 2 is blocked with a cover 6, which prevents the duct pipe 4, the expansion mechanism 5 and the recessed are 2 from being exposed in an indoor area so that it may be possible to provide a fine outward appearance similar to the case in which an air conditioner is incorporated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating apparatus, and more particularly, to a ventilating apparatus which is installed on a ceiling wall of a dining room or a living room of a general house to ventilate a room.

[0002]

2. Description of the Related Art Today, as a ventilation device for a general house, it is installed on a range hood fan installed in a kitchen or a cooking place such as a kitchen, or on a side wall or a window in a dining room or a living room. Ventilation fans are known. All of these ventilation devices are fixedly installed at a location away from the center area of the room, so when cooking dishes such as Genghis Khan, sukiyaki, grilled meat using a pot or iron plate on the table installed in the center area of the room, Oil smoke, steam, and the like generated during the cooking cannot be exhausted efficiently, so that when such a cooking is performed, a smell remains in the room, and it is apt to be avoided, especially in a newly built house.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional circumstances, and has as its object the purpose of producing dishes that generate oily smoke or steam in a dining room or living room. It is therefore an object of the present invention to provide a novel ventilator capable of efficiently sucking and exhausting the oily smoke and the vapor when performing the operation, and capable of storing the oily smoke and the vapor without being hindered in a normal state.

[0004]

In order to achieve the above-mentioned object, the ventilator of the present invention has a through hole in the ceiling wall of the room as described in claim 1, and the through hole is directed toward the room. Along with hanging an expandable duct tube, an intake port is formed at the lower end of the duct tube, and the duct tube is expanded and contracted by the operation of an expansion mechanism to adjust the amount of droop (protrusion amount) to the room, Further, the gist of the present invention is to connect the through hole to an exhaust port communicating with the outside and to provide a forced exhaust device at a predetermined position of an exhaust path from the intake port to the exhaust port.

As the duct tube which can be extended and contracted, for example, a flexible telescopic tube formed in a bellows shape using a synthetic resin material, an aluminum material or the like, or a short tube having a sequentially reduced inner diameter is slidably fitted and connected sequentially. In consideration of airtightness, operability during expansion and contraction, heat resistance, dew condensation, manufacturing cost, etc., a flexible telescopic tube formed in a bellows shape using aluminum or the like (this kind of technology) A so-called aluminum flexible duct known in the field) is preferably used.

The exhaust path from the through hole to the exhaust port is formed using a flexible tube made of, for example, a synthetic resin material or an aluminum material, or a tube made of a desired metal material or a hard synthetic resin material. However, in consideration of heat resistance, dew condensation, workability at the time of piping, and the like, a flexible pipe (such as the above aluminum flexible duct) made of an aluminum material is preferably used.

[0007] Further, it is also possible to form all of the exhaust path from the exhaust port to the intake port with a telescopic duct tube. In this case, as all of the exhaust path expands and contracts due to the operation of the expansion and contraction mechanism, the exhaust pipe expands and contracts. The amount of the part that hangs (projects) from the through hole in the exhaust path into the room is adjusted. However, considering that the expansion and contraction mechanism is made as compact and low-cost as possible, the part from the through hole to the intake port is considered. It is preferable that only the portion, that is, only the portion hanging down in the room be expanded and contracted.

[0008] The forced exhaust device may be disposed between the through hole and the intake port in the exhaust path, may be disposed between the through hole and the exhaust port, may be disposed at the intake port or the exhaust port, and the like. However, if the expansion and contraction mechanism is made as compact and low-cost as possible, and safety is taken into consideration, it should be fixed to the slab behind the ceiling and arranged between the through hole and the exhaust port, or It is preferable to install. In order to perform the exhaust more efficiently, it is more preferable to dispose it between the through hole and the exhaust port.

[0009] As the expansion and contraction mechanism, for example, one end of a connecting member such as a rope or a chain is connected to a lower end portion of a duct tube having an intake port (a lower end portion of a duct tube hanging down from a through hole toward a room), and the connecting member is connected. The other end is connected to a winding device such as a manual winch, an electric winch, a motor with a brake, etc., so that the duct tube can be expanded or contracted by the operation of the winding device, or a cylinder, a link mechanism, a pantograph, a base, etc. It is conceivable to form a structure by appropriately combining known constituent members such as a rose.

According to the structure described in claim 1, the duct tube is extended by the operation of the expansion / contraction mechanism to lower the intake port at the lower end of the duct tube and set its height position arbitrarily. As a result, the intake port can be located directly above the location where oil smoke, steam, etc. are generated, and exhaust can be performed efficiently. After use, the duct can be contracted by the operation of the expansion mechanism and the intake port can be raised to reduce the amount of protrusion into the room.

Further, as described in claim 2, the through hole is
While opening on the upper surface of the recessed part that is recessed in the ceiling wall of the room,
It is preferable that the recess has a depth that allows the duct tube and the expansion / contraction mechanism to be housed therein, and a cover that closes an opening of the lower surface of the recess is provided at the lower end of the duct tube, and the intake port is provided in the cover.

In this case, if the duct tube is contracted by the operation of the expansion / contraction mechanism, the duct tube is housed in the recess and the recess is closed by the cover. It will have the same clean appearance as the one with a built-in conditioner.

[0013]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIGS. The ventilation device A shown in the drawing is
Indoor ceiling wall 1 such as dining room and living room
The duct tube 4 is made to hang down from the through hole 3 toward the room, and the duct tube 4 expands and contracts by the operation of the expansion and contraction mechanism 5, and the recess 2 is formed together with the expansion and contraction mechanism 5. On the other hand, a cover 6 and an intake port 7 are provided at the lower end of the duct pipe 4 and the through hole 3 is connected to the exhaust port 9 by duct pipes 8a and 8b, and between the duct pipes 8a and 8b. A forced exhaust device 10 is provided.

A hole 11 is formed in a portion of the ceiling wall 1 corresponding to the center area of the room, and a lower surface 12a is opened in the hole 11 and a box 1 capable of accommodating the duct pipe 4 and the telescopic mechanism 5 is provided.
2 is inserted and projected into the space 13 above the ceiling, and the lower edge of the box 12 is fixed in the hole 11 using the frame member 14. Box 12
A through-hole 3 is formed in the upper surface of the upper surface to allow the recess 2 to communicate with the space 13 above the ceiling.

The duct pipe 4 is made of a flexible telescopic pipe formed in a bellows shape using an aluminum material or the like, that is, a so-called aluminum flexible duct. Will be arranged. An upper surface opening 15a of a hood 15 is connected to the lower end of the duct pipe 4, and a box 12 is connected to a lower surface opening 15b of the hood 15.
A cover 6 is formed to close the lower surface 12a, and the cover 6 is formed with an air inlet 7 communicating with the lower surface opening 15b. The suction port 7 is provided with a rag plate 16 having a number of suction holes 16a. In the extended state, the duct tube 4 has a length such that the intake port 7 is located immediately above the cooking utensil 18 on the table 17 installed in the room and is accommodated in the recess 2 in the contracted state. .

The expansion / contraction mechanism 5 comprises an expansion / contraction member 19 provided between the cover 6 and the box 12, and a connecting member 20 for integrally expanding / contracting the duct tube 4 and the expansion / contraction member 19.

The elastic member 19 includes the cover 6 and the box 12.
Between the mounting pieces 19a, 19a provided at opposite locations of
It is a pantograph-shaped one in which two arms 19b are crossed and rotatably fixed to the shaft and a number of the cross-shaped arms are rotatably connected. The hood 15 and the cover 6 are provided on the left and right sides of the duct pipe 4. It is supported up and down freely.

The connecting member 20 is connected to the cover 6 by dividing the one end 20a into two forks, passing the middle part through the hole 21 on the upper surface of the box 12 and extending over the roller 22, and further electrically winding the other end 20b. It consists of a rope wound around the machine 23.
The electric winder 23 includes an operation unit 24 disposed at a predetermined location in the room.
Is driven in the forward and reverse directions by the drive ON operation by
It consists of a motor with a brake that stops unrotatably by FF operation and is fixed to the foundation ceiling surface 25. The connecting member 20
Are arranged on the left and right sides of the duct tube 4, are wound up by the forward rotation of the electric winder 23, and contract the duct tube 4 and the elastic member 19 integrally, and are fed out by the reverse rotation of the electric winder 23. Then, the duct pipe 4 and the elastic member 19 are integrally extended, whereby the amount of protrusion (the amount of droop) of the duct pipe 4 with respect to the room is adjusted, and the height position of the intake port 7 can be set arbitrarily. .

In the space 13 above the ceiling, a forced exhaust device 10 attached to the base ceiling surface 25 close to the exhaust port 9 is provided.
And an elbow pipe 26 having one end connected to the through hole 3 is provided. Further, the other end of the elbow pipe 26 is connected to the suction port 10a of the forced exhaust device 10 by the duct pipe 8a. Then, the exhaust port 10b of the forced exhaust device 10 and the exhaust port 9 are connected by a duct pipe 8b.

Each of the duct pipes 8a and 8b is a flexible telescopic pipe formed in a bellows shape by using an aluminum material or the like, that is, a so-called aluminum flexible duct, similarly to the duct pipe 4 described above.

The forced exhaust device 10 is well known in this technical field in which a fan motor is built in a casing having a suction port 10a and a discharge port 10b, and the operation stop / start is performed by operating the operation section 24. To do.

The exhaust port 9 is opened to the outside of the building frame so as to communicate with the outside, and its periphery is surrounded by a cover 27 to prevent intrusion of rainwater and the like.

Hereinafter, the ventilation device A of the present example having the above-mentioned configuration
How to use will be described. Normally, the connecting member 20 is wound by the electric winder 23, the duct tube 4 and the elastic member 19 are contracted and housed in the box 12 (in the concave portion 2), and the lower surface opening 12a is covered with the cover 6. (See FIG. 3). At this time, only the intake port 7 and the cover 6 covered with the gully board 16 are exposed in the room, and there is no surrounding body such as a range hood around the intake port 7.
Since the ceiling wall 1 has a flat appearance without any protrusions and the like, and the intake port 7 has an appearance in which a built-in type air conditioner is arranged, an improvement in the aesthetic appearance of the room can be expected.

In this state, when the electric winder 23 is driven to pull out the connecting member 20, the duct tube 4 and the telescopic member 1 are pulled out.
When the drive of the electric winder 23 is stopped when the cover 9 (the intake port 7) is lowered and the intake port 7 is located just above the cooking utensil 18 on the table 17, the intake The position of the mouth 7 is set to the height. If the forced exhaust device 10 is operated before or after this, the oil smoke, steam and the like are reliably sucked from the intake port 7 located immediately above the cooking utensil 18 and the exhaust port 9 is passed through the hood 15 and the duct pipes 4, 8a, 8b. (See FIGS. 1 and 2).

Further, after use, if the connecting member 20 is wound by driving the electric winder 23, the duct tube 4 and the telescopic member 19
Are integrally contracted, the cover 6 is raised, and the duct pipe 4 and the elastic member 19 are housed in the recess 2 and the lower surface opening 12a is returned to the initial state in which the cover 6 is covered.

The case where the duct tube 4 is automatically expanded and contracted by the electric drive means (electric winder) has been described above, but a manual winder is provided in place of the electric winder 23 and It goes without saying that an operation handle of the winder may be provided at a predetermined position in the room, and the duct pipe 4 may be expanded and contracted by rotating the operation handle in the forward and reverse directions.

[0027]

Since the present invention is configured as described above, the duct tube is extended by the operation of the expansion mechanism to position the intake port directly above the place where oil smoke, steam, etc. are generated, and suction is performed very efficiently. Exhaust can be performed, and after use, the expansion / contraction mechanism operates to contract the duct pipe and raise the intake port, thereby reducing the amount of projection into the room.
Therefore, in a dining room, living room, etc., do not hesitate to leave a smell or adhere to the room,
It was possible to provide a very convenient and novel ventilation device that can safely perform cooking such as Genghis Khan, sukiyaki, and roasted meat that generate oil smoke and steam, and that can be stored without disturbing during normal operation. In addition, since the intake port is located just above the point where oil smoke, steam, etc. are generated, suction and exhaust can be performed reliably without a surrounding body such as a range hood around the intake port, and the beauty of the room is reduced. It can be installed in a dining room, living room, or the like without fear of causing it.

Further, in the case of the structure as described in claim 2,
Normally, the duct pipe is housed in the space above the ceiling, and only the intake port is exposed, giving the appearance of having a built-in air conditioner, which can be expected to improve the aesthetics of the room. It can be more effective.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a ventilation device according to the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a side view showing the housed state in FIG. 2;

FIG. 4 is a P view of FIG. 3;

[Explanation of symbols]

 1: Ceiling wall 2: Recessed portion 3: Through hole 4: Stretchable duct tube 5: Stretching mechanism 6: Cover 7: Intake port 8a, 8b: Duct pipe 9: Exhaust port 10: Forced exhaust device

Claims (2)

[Claims] 1. A through hole is provided in a ceiling wall of a room, a duct pipe that is expandable and contractible toward the room is hung from the through hole, and an intake port is formed at a lower end of the duct pipe. It is expanded and contracted by the operation of the expansion and contraction mechanism so that the amount of droop to the room can be adjusted, and the through hole is connected to the exhaust port that communicates with the outside, and forced exhaust is performed at a predetermined location in the exhaust path from the intake port to the exhaust port A ventilation device equipped with a device. 2. The through hole is opened in an upper surface of a recessed portion provided in a ceiling wall of a room, and the recessed portion is provided with a depth capable of accommodating the duct pipe and the expansion / contraction mechanism. The ventilation device according to claim 1, wherein a cover is provided at a lower end of the pipe to close the lower surface opening of the recess, and the intake port is provided in the cover.