JPH03140105A - Chair provided with artificial spout type local exhaust device - Google Patents

Abstract

PURPOSE:To eliminate smoke and dust, and also, to purify air by providing an air blowout pipe and a supply air blower, and also, providing an artificial spout generating mechanism and an air purifying mechanism. CONSTITUTION:An air curtain is generated by blowing out air from an air blowout pipe 6 from a supply air blower 7, and in a state seated on a chair body 2, smoke, dust, etc., generated by smoking, etc., are prevented from going out to the outside. Simultaneously, when air is sucked from an air suction port 9 by a suction air blower 16, air flows along a spiral curved surface 4, a turning air current is formed, and in the center part of the turning air current, a negative pressure area is formed by a suction of air from the air suction port 9, the negative pressure area forms a negative pressure core part D along the center part of the turning air current, centrifugal force of the turning air current and negative pressure of the negative pressure core part D are balanced, an artificial spout H going to the air suction port 9 is generated, and contaminated air is eliminated quickly. Sucked air is led into a chair body, and purified by an air purifier B.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an artificial tornado-type local exhaust ventilation system that is used mainly indoors to collect and purify air containing soot, dust, etc. Regarding chairs [Conventional technology] Conventional chairs only have the function of allowing people to sit and rest by the river.
However, recently chairs installed in places where many people gather, such as theaters, have been developed with backrests that allow air to flow through the air. This is because when air-conditioning a large space, the floor area where people sit is intensively air-conditioned to save air-conditioning energy. Since the design does not attempt to block the air, the speed and volume of the air blowing out is designed to be extremely small, and the use of counter-contamination is also limited. Cigarette smoke leaks out of smoking seats in places such as places, trains, and airplanes.Furthermore, even in seats where smoke and odors are generated from grilled meat, conventional chairs do not allow smoke and odors to flow out into the surrounding area. This caused inconvenience to others and was even more unpleasant for the person himself.

Therefore, in order to eliminate these inconveniences, the applicant has developed a chair with an air curtain, an air purifier, and a chair with an air curtain.

This chair with an air curtain (see Utility Model Application No. 1983-9159) has a chair body with an air outlet in the upper part and an air suction outlet in the lower part, and a blower is installed inside the chair body. The chair has a structure in which air is sucked through the air suction port of the chair body through the blower and discharged from the air outlet to form an air curtain in the upper part of the chair body.

In this conventional chair with an air curtain, the air curtain that blows up from the upper part of the chair body draws in air from inside and outside, and as the air volume increases, cigarette smoke generated from between the chair bodies also gets mixed into the air curtain. is,
By exhausting air from the ceiling that is greater than the amount of air drawn in from the outside and always maintaining a negative internal pressure, cigarette smoke will not flow out into the surrounding area and will not cause a nuisance to others.

However, in this chair with an air curtain, unless the exhaust blower has a large capacity, it is impossible to maintain a negative internal pressure at all times, and since there is no air purifier, there is a loss in air conditioning due to exhaust air.

In order to solve these problems, air purifiers and chairs with air curtains (chairs with air curtains) are manufactured by letting some of the air forming the air curtain escape and removing cigarette smoke, etc. with an air purifier.
(See Japanese Patent Application No. 192762/1983).

There is also a local exhaust system using an artificial tornado (see Japanese Patent Application No. 01-1117811) by the present applicant, which consists of an artificial tornado generating mechanism and an exhaust purification mechanism. This artificial tornado generating mechanism consists of a box with an open front, a back wall formed into a spirally curved surface, an air blowing pipe that generates an air curtain at the tip of the back wall, and an air blowing pipe that generates an air curtain on both sides. An air suction port is provided on the wall. and,
The exhaust gas cleaning mechanism includes a workbench provided under the box, and the air containing soot, dust, etc. sucked into the workbench from the air suction port is converted into clean air and discharged. Therefore, smoke, dust, etc. generated on the workbench are prevented from leaking outside due to the air curtain formed by the air blown out from the air blowing pipe, and the air curtain is created by an artificial tornado generated around the axis of the air suction port. It is collected along with the air inside and sent to the workbench, where it is made into clean air.

[Problem to be Solved by the Invention 1] However, in the above-mentioned chairs, it is necessary to simply use an air curtain to prevent smoke, dust, etc. from being discharged to the outside, or to suck air in order to maintain a negative pressure inside the air curtain. The sucked air is then passed through an air purifier to obtain clean air. Therefore, the generated smoke, dust, etc. are not removed quickly and remain in the air curtain for a certain period of time.

In addition, in order to maintain negative pressure inside the air curtain, the rfii must become large, and the capacity of the exhaust blower 5, etc. will also become large.

In addition, the above-mentioned artificial tornado type local exhaust system.

Because it locally exhausts soot, dust, etc. generated on the workbench, it cannot be used as is for chairs, etc.

Therefore, the present invention has been made in view of the above circumstances.
In the present applicant's improved invention of a chair with an air curtain, an air purifier, a chair with an air curtain, and an artificial tornado-type local exhaust device, when smoke and dust are generated by smoking or the like near the chair, without leaking to the outside,
The object of the present invention is to provide a chair equipped with an artificial tornado-type local exhaust system that can immediately eliminate smoke and dust and purify the area.

[Means for Solving the Problems] As described in detail above, a chair equipped with an artificial tornado type local exhaust ventilation system according to the present invention has a backrest of a chair body that extends upward, and the upper part of the chair body that is attached to the seat of the chair body. The backrest is formed into a spirally curved surface facing in the direction of the plate, and includes an air blowing pipe for generating an air curtain at the tip of the spirally curved surface of the backrest, and a supply blower connected to the air blowing pipe; an artificial tornado generating mechanism provided on a side wall of the chair body and an air suction port provided in a side wall connected to the backrest in the axial direction of the substantially spiral center of the spirally curved surface; and an air purifier provided in the chair body. and an air cleaning mechanism that houses a suction blower and converts the air sucked from the air suction port into clean air and discharges it.

[Function] According to the chair equipped with the artificial tornado-type local exhaust system configured as described above, air is blown out from the air blowing pipe by the supply blower to generate an air curtain, allowing the user to smoke, etc. while sitting on the chair body. The smoke, dust, etc. generated by A negative pressure area is formed in the center of the air by suction of air from the air suction port, and this negative pressure area forms part of the negative pressure core along the center of the swirling airflow, and the centrifugal force of these swirling airflows and the negative When the negative pressure in a part of the pressure core is balanced, a continuous horizontal artificial tornado is generated toward the air suction port, and the contaminated air is quickly removed by this artificial tornado. The sucked air is introduced into the chair body and purified by an air purifier.

[Example] Hereinafter, an example of the present invention will be described in detail based on FIGS. 1 to 3.

Fig. 1 is a perspective view of a chair equipped with an artificial tornado-type local exhaust ventilation system of the present invention, and Fig. 2 is a sectional view taken along line II-II in Fig. 1. Fig. 3 is a chair equipped with an artificial tornado-type local exhaust ventilation system. FIG. Reference numeral 1 indicates a chair equipped with an artificial tornado-type local exhaust system (hereinafter simply referred to as a chair with an exhaust system), and the chair 1 with an exhaust system is an artificial tornado generator consisting of an artificial tornado generating mechanism A and an air purifying mechanism B. Horizontal A includes the chair body 2, the backrest 5 which is attached to the chair body 2 and whose upper part is formed into a spiral curved surface 4 facing toward the seat plate 3 of the chair body 2, and the spiral curved surface 4 of the backrest 5. An air blowing pipe horizontally attached to the tip, a supply blower 7 connected to the air blowing pipe, 11 walls 88 provided on the sides of the chair body 2 and the backrest 5, and the side walls 8.
．． It consists of air suction ports 9 and 9 provided at 8.

The chair body 2 is formed in the shape of a chaise longue, and is composed of the aforementioned seat plate 3 and the front plate lO, and a cushion or the like is attached to the seat plate 3.
The backrest 5 is attached as described above, and the backrest 5 extends upward and is higher than the height of the person.

The upper part of the backrest 5 is formed into a spirally curved surface 4 toward the seat plate 3. This spirally curved surface 4 causes air to flow along it to form a swirling airflow.

The air blowing pipe is provided across the side wall 8.8, and is connected to the air blowing hole 11 at a predetermined interval.
...... are drilled in large numbers.

The axial direction of these air blowing holes 11 is diagonally downward toward the outside. The supply blower 7 is connected to this air blowing pipe via a pipe 12. Air is sent to the air blowing pipe by the supply blower 7, and the air blowing hole ti...
Air is blown out, and an air curtain is formed diagonally below the front of the air blowing hole 11 . . . the chair body 2. The space formed by this air curtain and the backrest 5 is isolated from the outside. Therefore, the air within this space does not escape to the outside.

Said side wall 8.8 is hollow;
are respectively provided with holes 14,14 for communication with the space 13 defined by the chair body 2 and the backrest 5. Further, air suction ports 9, 9 are provided in the side wall 8.8 in the axial direction of the spiral center of the spiral curved surface 4 of the backrest 5.
are provided for each. Therefore, since the side walls 8.8 of the air suction holes 9, 9 are hollow, the space 13
It communicates with the interior via holes 14.14.

The surface, 0III wall 8.8 does not need to be hollow, and it is sufficient if the air suction ports 9, 9 and the hole 14.14 are connected by a pipe.

The air purifying mechanism B is housed in the space 13 and consists of a filter (air purifier) 15 and a suction blower 16 provided downstream of this. The air sucked by the suction blower 16 is filtered by the filter 15 and becomes clean air.

In addition, 17 is an exhaust port, 18 is a person, 19 is a cigarette, and 20 is an ashtray.

Next, the operation of the chair 1 with an exhaust system configured as described above will be explained.

First, turn on the operation switch (not shown) of the chair l with the exhaust device, rotate the supply blower 7, and blow air into the pipe 12.
The air is sent to the air blowing pipe via. Air is blown out from the air blowing holes 11 of the air blowing pipe, and an air curtain ac flowing obliquely forward and downward from the air blowing pipe is formed with sweat. Therefore, the space formed by the air curtain aC, the backrest 5, and the 0111 wall 8.8 is blocked, and the air in this space does not leak to the outside.

After the supply blower 7 is turned on, the suction blower 16 rotates simultaneously or with a delay, and the air suction port 9.9 is turned on.
When the air is sucked in, the air in the space flows along the backrest 5.

The spirally curved surface 4 at the top of the backrest 5 creates a swirling airflow. The axial center of this swirling airflow is located at the air suction port 9.
．． 9, a negative pressure area is formed by suction of air. This negative pressure region forms part of a negative pressure core along the center of the swirling airflow. The centrifugal force of these swirling airflows and the centripetal force due to the negative pressure in part of the negative pressure core are balanced, and this swirling airflow forms a continuous horizontal artificial tornado H toward the air suction port 9.9.
becomes.

Therefore, in FIGS. 1 and 2, the person 18 sitting on the chair body 2
When a smoker smokes a cigarette 19 and smoke comes out, the smoke is prevented from leaking outside by the air curtain aC, and is immediately caught up by the artificial tornado H and flows through the air suction ports 9, 9 provided on the side walls 8, 8. It enters the side walls 8, 8 together with the air and enters the space 13 via the holes 14.14 and filters 1.
5 removes smoke and becomes clean air, and this clean air is discharged to the outside from the exhaust port 17.

Therefore, if the chair l with the exhaust device of this embodiment is placed separately indoors, the air containing smoke from smoking can be quickly removed and the air becomes clean, regardless of the air conditioner in the room. There is no need to provide a separate smoking area.

Effects of the Invention 1 As detailed above, according to the chair equipped with the artificial tornado type local air device of the present invention, air is blown out from the air blowing pipe by the supply blower to generate an air curtain. The air curtain prevents smoke, dust, etc. generated from smoking while sitting on the chair itself, and at the same time, when air is sucked in by a suction blower, the air flows along a spiral curved surface. As a result, a swirling airflow is formed, and a negative pressure area is formed in the center of the swirling airflow by suction of air from the air suction port, and this negative pressure area partially covers a negative pressure core along the center of the swirling airflow. The centrifugal force of this swirling airflow and the centripetal force caused by the negative pressure in a part of the negative pressure core balance, creating a continuous horizontal artificial tornado heading toward the air suction port, and this artificial tornado causes pollution. Air is quickly removed.The sucked air is introduced into the chair and purified by an air purifier.

Therefore, if smoke or dust is generated near the chair body by smoking, etc., it is possible to immediately remove the smoke and dust and clean it without leaking to the outside, and there is no need to provide a separate smoking area. It's okay.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a perspective view of a chair equipped with the artificial tornado type local exhaust system of the present invention; FIG. 2 is a sectional view taken along the line IT-IT in FIG. 1; FIG. 3 is a front view of a chair equipped with an artificial tornado type local exhaust system. 1...Chair equipped with an artificial tornado type local exhaust system 2
・・・・・・Chair body 3・・・・・−Seat plate 4・
...Spiral curved surface 5 ...Backrest 6
...... Air blowing pipe 7 ... Supply blower 8 ... Side wall 9 ... Air suction port 15 ... Filter (air cleaner 23) 16...
...Suction blower A...Artificial tornado generation mechanism B...Air cleaning mechanism

Claims (1)

[Claims] (1) A backrest attached to the chair body is extended upward, and its upper part is formed into a spiral curved surface facing toward the seat plate of the chair body, and an air curtain is generated at the tip of the spiral curved surface of the backrest. The spiral curved surface is provided with an air blowing pipe and a supply blower connected to the air blowing pipe, and an air suction port is provided on a side wall of the chair body and connected to the backrest. an artificial tornado generation mechanism provided approximately in the axial direction of the center of the spiral, an air purifier and a suction blower housed within the chair body, and air sucked from the air suction port converted into clean air and discharged. A chair equipped with an artificial tornado type local exhaust system characterized by comprising a cleaning mechanism.