JPH09121947A - Table with air controlling function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a table which effectively removes smokes, etc., at the peripheral edges of the table and their surrounding areas and also prevent intrusion of foreign matter without causing the person in the place to feel cold in his feet while the operating noises are suppressed. SOLUTION: A table body 4 is furnished with an air exhaust hole 10 and air runoff holes 11 in the undersurface and side faces, and the top plate 2 is equipped with an air suction hole 5, and thereover an shielding plate 7 is installed. A netting member 14 surrounding the air suction hole 5 is installed between the top plate 2 and shielding plate 7, and a blower 9 and an air cleaner 8 are accommodated within the table body 4. The netting member 14 hinders foreign matter from intruding, while the plate 7 and netting 14 spread the isovelocity line effective for capturing smokes, etc., to the peripheral edges of the top plate 2 and their surrounding areas. Thereby the smokes, etc., are effectively captured, and the air is cleaned. Because the air exhaust hole 10 and runoff holes 11 are located in the undersurface and side faces, the purified air does not directly run against the feet, and the operating noises of the blower 9 become indirect and lower.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table with an air control function for eliminating and cleaning contaminated air existing in the vicinity of the table due to smoke, dust, malodor, toxic gas and the like.

[0002]

2. Description of the Related Art As a conventional table a with an air control function, as shown in FIGS. 11 and 12, an air discharge port c is provided on a side surface of a table body b and an air suction port e is provided on a top plate d of the table body b. A shielding plate f having an area smaller than the area of the top plate d is provided above the air suction port e by supporting the support g, and the inside of the table main body b between the air suction port e and the air discharge port c is provided. It is known that a blower h and an air purifier j having a built-in electric dust collector i are housed therein.

According to this table a with an air control function, when a person smokes a cigarette around the table a, the smoke of the cigarette passes between the ceiling plate d and the shielding plate f together with the surrounding air, and the air suction port e It enters the table body b, is cleaned by the air cleaning device j, and is discharged to the outside from the air discharge port c on the side surface of the table body b.

Further, as shown in FIGS. 13 and 14, a top plate d
In order to efficiently collect cigarette smoke floating in the peripheral portion of or around it, an edge plate k that rises upward is provided at the peripheral edge of the air suction port e of the top plate d, and it extends obliquely downward at the peripheral edge of the shielding plate f. Table a ₁ with air control function provided with edge plate m
Is also known.

[0005]

However, in the above-mentioned tables a and a ₁ having the air control function, the air after cleaning is discharged from the air exhaust port c on the side surface of the table body b. In winter, the feet feel cold, and the operating noise of the blower h is directly transmitted, which is irritating to the ears.

Further, although the shielding plate f having the edge plate m extending obliquely downward on the peripheral edge thereof is good in collecting contaminated air such as cigarette smoke in a wide range, it is costly. I have a tendency to become.

Further, in any of the conventional examples shown in FIGS. 11, 12 and 13, 14 there is nothing between the top plate d and the shielding plate f that obstructs the ash of cigarette if it accidentally scatters. From the air suction port e into the table body b, and relatively large ash is captured by the prefilter n of the air cleaning device j, etc., but the ash that has passed through enters the electric dust collector i of the air cleaning device j and is short-circuited. Then, a crackling sound is generated, which gives a person an unpleasant feeling.

Further, since the above-mentioned shield plate f is supported by the support column g and this support column g is erected on the top plate d, the shield plate f cannot rotate and move like a Chinese table, The use range of the tables a and a1 with the air control function was largely limited.

Therefore, the present invention has been made in view of the above circumstances and reduces operating noise without making feet feel cold and secures a wide trapping range at a low cost and cleans contaminated air. At the same time, it is an object to provide a table with an air control function that prevents foreign matter from entering as much as possible, prevents continuous cracking noises, and can be used for multiple purposes.

[0010]

In order to solve the above problems, the invention according to claim 1 provides at least one or more air discharge ports in the table body and at least one or more air suction ports in the top plate of the table body. Is provided, and one or more shielding plates having an area smaller than the area of the top plate are provided above the one or more air suction ports, and a blower and an air blower are provided in the table body between the air suction port and the air discharge port. A table with an air control function that accommodates a cleaning device, characterized in that the air discharge port is located on the lower surface of the table body and an air escape port is provided on the side surface of the table body. Therefore, according to this feature, contaminated air such as cigarette smoke on the top plate or in the peripheral portion of the top plate passes between the top plate and the shield plate, and enters the table main body from the air suction port, Cleaned by an air purifier, the clean air is mainly discharged from the air outlet on the bottom surface of the table body, and part of it is discharged from the air outlet on the side surface, reducing the wind speed of the air hitting the feet as a whole, Since the main discharge of the blower is the air discharge port on the lower surface of the table body, the operating noise of the blower is indirectly reduced, and in addition, the blower noise is reduced due to the reduction in the wind speed.

According to a second aspect of the present invention, at least one air exhaust port is provided in the table body and at least one air suction port is provided in the top plate of the table body, and the above-mentioned one or more air suction ports are provided above. A table with an air control function, in which one or more shield plates having an area smaller than the area of the top plate are provided, and a blower and an air cleaning device are housed in the table body between the air suction port and the air discharge port. In addition, a net-like object surrounding the air suction port is provided between the top plate and the shielding plate. Therefore, according to this feature, the net-like material prevents the invasion of foreign matter such as cigarette ash, and the net-like material allows air to pass through but partially blocks the net-like material. This restricts the space in (1), expands the effective collected wind speed in the horizontal direction, and the contaminated air within the constant velocity line having this effective collected wind speed immediately enters the air suction port.

According to a third aspect of the present invention, at least one air exhaust port is provided in the table body, and at least one air suction port is provided in the top plate of the table body. Above the one or more air suction ports. A table with an air control function, in which one or more shield plates having an area smaller than the area of the top plate are provided, and a blower and an air cleaning device are housed in the table body between the air suction port and the air discharge port. The air purifier has an electric dust collector, and when the electrode plates of the electrostatic dust collector are short-circuited, the power is turned off for a predetermined time and then restored, and an alarm is issued when the number of shorts reaches a predetermined number of times. It is characterized by Therefore, according to this feature, when foreign matter with a large particle size such as cigarette ash enters the electrostatic precipitator and shorts between the electrode plates, the power is turned off for a predetermined time to stop the crackling noise, and the large foreign matter is caught in the electrode plate during the period. There is no crackling sound when the power is turned on after a lapse of a predetermined time after passing through the space. If there is a short circuit more than a predetermined number of times within a predetermined time, an alarm is issued.

According to a fourth aspect of the present invention, at least one air exhaust port is provided in the table body, and at least one air suction port is provided in the top plate of the table body, and the at least one air suction port is provided above the one or more air suction ports. A table with an air control function, in which one or more shield plates having an area smaller than the area of the top plate are provided, and a blower and an air cleaning device are housed in the table body between the air suction port and the air discharge port. The air purifier has an electric dust collector, and when the electrode plates of the electrostatic dust collector are short-circuited, the discharge voltage is reduced for a predetermined time and then returned, and when the short-circuit reaches a predetermined number of times within a predetermined time, an alarm is issued. It is characterized by issuing. Therefore, according to this feature, when a short circuit occurs, the discharge voltage is lowered to make a crackling sound that is inaudible to a person, dust is also collected during that time, and an alarm is issued when the short circuit occurs a predetermined number of times or more within a predetermined time.

According to a fifth aspect of the present invention, in the first, second, third, and fourth aspects, the shielding plate is rotatably and detachably provided on the top plate of the table body. . Therefore, according to this, the shielding plate can be rotated and removed on the top plate.

[0015]

FIG. 1 is a block diagram showing an embodiment of the present invention.
It will be described in detail based on -10. 1 is a perspective view of a table with an air control function showing an embodiment of the present invention.
Is a sectional view thereof. The table 1 with an air control function in both figures includes a table body 4 composed of a top plate 2 and a box 3 attached to and supported by a lower surface of the top plate 2, one or more air suction ports 5 provided in the top plate 2, and an air suction port. One or more shield plates 7 located above the mouth 5 and held in parallel at a predetermined interval and fixed by a plurality of columns 6, an air cleaning device 8 housed in the box 3, and a blower 9 for suction. The air discharge port 10 provided on the lower surface of the box body 3 on the discharge side of the blower 9 and the air escape port 11 provided on the side surface of the box body 3 on the discharge side of the blower 9 are the main constituent elements.

The top plate 2 of the table main body 4 is made of a flat plate having a constant thickness, but is not limited to this and may have another shape. The material is wood, plastic,
The metal is not limited. The top plate 2 is provided with the air suction port 5 having a predetermined opening area S ₁ and opening size D. This air suction port 5 is located on the suction side of the blower 9, and an edge plate 12 is provided around it. And
The outer dimension R ₁ of the top plate 2 is formed to be approximately 4.5 times the opening dimension D of the air suction port 5 (R ₁ = 4.5D).
However, it is not particularly limited, and is set as necessary within the range of the constant velocity line of the collected wind speed effective for collecting the contaminated air. Further, the ashtray 13 is fixed to the top surface of the top plate 2, but there is no problem even if a separate movable ashtray 13 is placed on the top plate 2.

The shielding plate 7 has a rectangular shape, has a predetermined area S ₂ and an external dimension R ₂ , and is detachably mounted on the top plate 2 concentrically with the air suction port 5 of the top plate 2 via a column 6. It is provided in. Further, a net-like object 14 is provided so as to surround the column 6, and the net-like object 14 prevents a relatively large object from entering the air suction port 5. This net-like object 14 is the upper net 1 stretched outside the support column 6.
4a and the lower net 14b stretched inward. The upper net 14a and the lower net 14b are separated by a constant distance, for example, 20 mm. Therefore, when the blower 9 is operated,
Of course, the air passes through the upper net 14a and the lower net 14b, but since there is some resistance, the air is allowed to pass more between the upper net 14a and the lower net 14b opened at 20 mm, which is the case in the conventional example. The result is the same as that when the edge plate m of the shielding plate f shown in FIGS. 13 and 14 is provided, and the range of the iso-velocity line of the collecting wind speed effective for collecting the contaminated air is expanded in the horizontal direction. 3 shows another embodiment of the net-like material 14, in which the upper net 14a and the lower net 14b in FIG. 2 are reversed, and the effect is almost the same.

The area S ₂ of the shielding plate 7 is formed larger than the opening area S ₁ of the air suction port 5 (S ₂ >).
S ₁ ). The outer dimension R ₂ of the shielding plate 7 is formed to be approximately 1.5 times the opening dimension D of the air suction port 5 (R ₂ ≈1.5D). The number of the shielding plates 7 is not limited to one, and if the number of the air suction ports 5 is two or more, there is a number corresponding to it. Further, the shape and material of the shielding plate 7 are not particularly limited as in the above-mentioned top plate 2.

The air cleaning device 8 is for cleaning the contaminated air that has entered the box 3 through the air suction port 5, and its type, structure, etc. are not particularly limited. In this embodiment, the air cleaning device 8 includes a prefilter 20 for removing relatively large particles in polluted air, an electrostatic precipitator 21 for removing fine particles, and a deodorizing filter for removing odorous components in a gaseous state. 22 and the pre-filter 2 along the upstream and downstream of the air flow in the box 3.
0, the electrostatic precipitator 21, and the deodorizing filter 22 are stored in this order. Therefore, this device 8 has a high cleaning ability and lasts a long time as compared with a device that is cleaned once by an air cleaning filter.

Further, the electrostatic precipitator 21 recovers after a short time between the electrode plates by turning off the power for a predetermined time, for example, 10 seconds, and further, the short circuit occurs a predetermined number of times within the predetermined time, for example, 10 times in one hour. It has a built-in program that issues an alarm when the. For this reason, when a foreign particle having a large particle size such as cigarette ash enters the electrostatic precipitator 21 and the electrode plates are short-circuited, the power is turned off for 10 seconds, for example, and a cracking sound is immediately stopped, and a large foreign particle is caught between them. There is no crackling sound even when the power is turned on 10 seconds after passing between the boards. Furthermore, if this short-circuit reaches, for example, 10 times or more in one hour, an alarm will be issued, and appropriate measures can be taken.

In the same manner as described above, the electrostatic precipitator 21 recovers after the discharge voltage is reduced for a predetermined time when the electrode plates are short-circuited, and an alarm is issued when the short circuit reaches a predetermined number within a predetermined time. You may include the program to put out.
In this case, when the short circuit occurs, the discharge voltage is lowered to make a crackling sound that is inaudible to a person, and the polluted air can be collected during that time, which is more convenient than the above case.

The blower 9 is provided with impellers 24, 24 on both shafts of a motor 23, above the top plate 2,
In particular, the contaminated air existing in the peripheral portion and in the vicinity thereof is sucked into the box body 3 through the air suction port 5 together with the air around it, and passes through the air cleaning device 8 and is discharged from the discharge port 10 below the box body 3. It is for discharging clean air. Therefore, the blower 9 may be of any type, structure, etc. as long as it satisfies a predetermined pressure and air volume.

The air outlet 10 is provided at the bottom of the box body 3 and has a deodorizing filter 22 stretched over its entire surface. Therefore, the odor of the air cleaned by the electric dust collector 21 is removed and the clean air is discharged toward the floor surface, and the operating noise of the blower 9 is indirectly transmitted.

The air vents 11 are provided on both sides of the box body 3, and a deodorizing filter 22 is put on the entire surfaces thereof,
By removing the odor of the clean air and passing a part of the clean air, the amount of clean air discharged from the air discharge port 10 is relatively reduced, and the wind velocity at the feet can be reduced. In addition, 25 in FIG. 2 is a caster.

Next, a usage state of the table 1 with an air control function having the above-mentioned structure will be described. First, the blower 9 of the table 1 with air control function is turned on, and when the blower 9 is in a normal operation, the vicinity of the top plate 2 and the shielding plate 7 of the table body 4 is shown on the left and right of the point 0 in FIG. A streamline occurs. Here, in FIG. 4, the average wind speed at the air suction port 5 is 100%, the opening size of the air suction port 5 is D,
The vertical distance H between the top plate 2 and the shield plate 7 is 0.4D.
As a result, when plotting constant velocity points of 25%, 10% and 5% of the average wind speed of the air suction port 5 on each streamline in a steady state, the constant velocity lines of 25%, 10% and 5% are plotted. Is obtained. Generally, assuming that the effective range of the collected wind speed is 5%, this constant velocity line spreads by about 2.6D in the horizontal direction on the top plate 2 surface and 1.0D in the vertical direction.
About.

In this state, when cigarettes are smoked in the vicinity of the ashtray 13 on the table 1 with the air control function, smoke is emitted, and this smoke is generated at the peripheral edge of the top plate 2 and its vicinity at a constant velocity of about 5% in FIG. Since it is within the range of the line, this smoke is immediately sucked into the box 3 through the air suction port 5 together with the surrounding air, and the prefilter 20 removes relatively large particles contained in the air. Fine particles are captured by the electric dust collector 21, and odorous components such as gas are removed by the deodorizing filter 22, so that the smoke becomes clean air. On this occasion,
Clean air is mainly discharged from the air outlet 10 to the outside, and a part of the air is discharged from the two air outlets 11. The wind speed from the air outlet 10 is reduced to prevent the feet from feeling cold and the blower 9
Operating noise is also dispersed and reduced.

Further, at this time, if foreign matter such as cigarette ash enters the electrostatic precipitator 21 to cause a short circuit between the electrode plates, the power is turned off or the discharge voltage is lowered, and the cracking sound stops immediately, and the power is turned off after a predetermined time. Fine particles are captured when the discharge voltage returns or the discharge voltage returns to normal. If the number of shorts is large, a warning is issued, so it is sufficient to take appropriate measures.

Further, foot wind speed, intake air volume and noise by the table 1 with air control function of the present invention shown in FIGS. 1 and 2 will be compared with the conventional example shown in FIGS. The outer dimensions of the embodiment of FIGS. 1 and 2 and the conventional example of FIGS. 11 and 12 are the same, and the difference is that the air outlet 10 of the embodiment of FIGS. (W) x 575 mm
It is the size of (1), and the air vent 11 is located outside the box 3
On both sides of the, 160mm (w) × 270mm
In contrast to the size of (1), in the conventional example of FIGS. 11 and 12, the air discharge port 10 is in the front of the box body 3 and is 250 mm.
(W) × 575 mm (1).

Measurement Method (1) Foot Wind Speed Using an anemometer 6611 (manufactured by Kanomax Co.), in both the embodiments of FIGS. 1 and 2 and the conventional examples of FIGS. 11 and 12, four locations A 100 mmh away from the box 3 are used. ,
The measurement is made at B, C and D (see FIG. 5). (2) Suction air volume An anemometer 6611 (manufactured by Kanomax Co.) is used, and in both the embodiment of FIGS. 1 and 2 and the conventional example of FIGS. 11 and 12, the measurement duct 30 of FIG. 6 surrounding the air suction port on the top plate. 6 measuring holes 31 are opened in the measuring duct 30 (see FIG. 8), and the anemometer 6611 is inserted into the measuring holes 31.
The wind velocity is measured at 16 positions shown in FIG. 7 to obtain the average wind velocity, and the cross-sectional area of the measurement duct 30 (1 m × 0.6 m
= 0.6 m ² ) to obtain the suction air volume. (3) Noise Using the sound level meter 4010 (manufactured by Kanomax Co., Ltd.), in both the embodiments of FIGS. 1 and 2 and the conventional examples of FIGS. 11 and 12, four floor surfaces E, F, 1 m away from the top plate,
It was measured by G and H (see FIG. 5).

The measurement results are shown below in Tables 1, 2, and 3.

[Table 1]

[Table 2]

[0031]

[Table 2]

FIG. 9 shows a table 1a with an air control function which is another embodiment of the present invention. The difference from the embodiment of FIGS. 1 and 2 is that the wheel 32 is attached to the tip of the column 6. The shield plate 7 is rotatable and removable on the top plate 2 inside the edge plate 12 of the air suction port 5. As a result, the table 1a with the air control function is useful as a table used in a Chinese restaurant or the like. Since other configurations and operations are similar to those of the embodiment shown in FIGS. 1 and 2, reference numerals are given to the drawings and the description thereof will be omitted.

FIG. 10 shows a table 1b with an air control function which is another embodiment of the present invention. The difference from the embodiment of FIG. 9 is that the outer edge of the edge plate 12 of the air suction port 5 is different. The shield plate 7 is rotatable and detachable on the plate 2. Since other configurations and operations are the same as those of the embodiment of FIG. 9, the reference numerals are given to the drawings and the description thereof will be omitted.

[0034]

As described above in detail, the table with the air control function of the present invention has the following effects.
According to the first aspect of the invention, when the blower is operated, contaminated air such as cigarette smoke on the top plate or in the peripheral portion of the top plate passes between the top plate and the shield plate, and from the air suction port to the table. After entering the main body and being cleaned by an air purifying device, the clean air is mainly discharged from the air outlet on the bottom surface of the table body, and a part of it is discharged from the air outlet on the side surface. Since the main discharge of the clean air is the air discharge port on the lower surface of the table body, the operating noise of the blower indirectly decreases, and in addition, the blowing noise decreases due to the decrease in the wind speed. Therefore, the coldness at the feet can be eliminated, and the user can be in a comfortable state without worrying about the sound.

According to the second aspect of the present invention, a net-like object surrounding the air suction port prevents foreign matter such as cigarette ash from entering.
The net-like material allows air to pass through, but since it partially blocks the space, the net-like material restricts the space between the top plate and the shielding plate, which widens the effective collection wind speed in the horizontal direction. The polluted air within the constant velocity line having a high collection wind speed immediately enters the air suction port. Therefore, it is effective in preventing the entry of foreign matter and efficiently sucking a wide range of contaminated air to prevent diffusion.

According to the third aspect of the present invention, when a foreign matter having a large particle size such as cigarette ash enters the electrostatic precipitator of the air purifier and the electrode plates are short-circuited, the power is turned off for a predetermined period of time and a crackle sounds immediately. A large foreign object passes between the electrode plates during that time, and there is no cracking sound even when the power is turned on after a predetermined time, and an alarm is issued if a short circuit occurs a predetermined number of times or more within a predetermined time. Therefore, an unpleasant crackling sound is almost eliminated, and an alarm is issued for continuous intrusion of foreign matter, so that an appropriate response can be taken.

In a fourth aspect of the present invention, when a short circuit occurs, the discharge voltage is lowered to make a crackling sound that is inaudible to a person, and when a short circuit occurs a predetermined number of times or more within a predetermined time, an alarm is issued. Therefore, in addition to the effect of the third aspect of the invention, since the electrostatic precipitator continues to operate, dust of contaminated air can be collected during that time.

According to the invention of claim 5, claim 1,
In the table with air control function described in 2, 3, or 4, the shield plate can be rotated on the top plate and can be removed. Therefore,
The range of use is expanded accordingly, and it can be used for, for example, a Chinese table or the like, and maintenance is easy and convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view of a table with an air control function according to an embodiment of the present invention.

FIG. 2 is a sectional view of a table with an air control function according to the embodiment of the present invention.

FIG. 3 is a partial sectional view of a table with an air control function according to another embodiment of the present invention.

FIG. 4 is a characteristic diagram showing a streamline model of a table with an air control function according to an embodiment of the present invention.

FIG. 5 is a plan view showing measurement positions of foot wind speed and noise of the table with an air control function according to the embodiment of the present invention.

FIG. 6 is a perspective view of a measurement duct for measuring the intake air volume of the table with an air control function according to the embodiment of the present invention.

7 is a plan view showing measurement positions in the measurement duct of FIG.

8 is a side view showing a measurement position in the measurement duct of FIG.

FIG. 9 is a sectional view of a table with an air control function according to another embodiment of the present invention.

FIG. 10 is a partial cross-sectional view of a table with an air control function showing another embodiment of the present invention.

FIG. 11 is a perspective view showing a conventional example.

FIG. 12 is a sectional view showing a conventional example.

FIG. 13 is a sectional view showing a conventional example.

FIG. 14 is a characteristic diagram showing a streamline model of a conventional example.

[Explanation of symbols]

1, 1a, 1b, a, a ₁ Table with air control function 2, d Top plate 4, b Table body 5, e Air suction port 7, f Shielding plate 8, j Air purifying device 9, h Blower 10, c Air Discharge port 11 Air escape port 14 Net-shaped material 21, i Electrostatic precipitator

Claims (5)

[Claims] 1. A table main body is provided with at least one or more air outlets, and at least one top plate of the table main body is provided.
The above air suction ports are provided, and one or more shielding plates having an area smaller than the area of the top plate are provided above the one or more air suction ports, and the table main body between the air suction ports and the air discharge ports is provided. A table with an air control function, in which a blower and an air cleaning device are housed, wherein the air discharge port is located on the lower surface of the table body and an air escape port is provided on the side surface of the table body. Table with air control function. 2. The table main body is provided with at least one air outlet, and at least one top plate of the table main body is provided.
The above air suction ports are provided, and one or more shielding plates having an area smaller than the area of the top plate are provided above the one or more air suction ports, and the table main body between the air suction ports and the air discharge ports is provided. A table with an air control function, in which a blower and an air cleaning device are housed, wherein a net-like object surrounding the air suction port is provided between the top plate and the shielding plate. Table with control function. 3. The table main body is provided with at least one or more air outlets, and at least one top plate of the table main body is provided.
The above air suction ports are provided, and one or more shielding plates having an area smaller than the area of the top plate are provided above the one or more air suction ports, and the table main body between the air suction ports and the air discharge ports is provided. A table with an air control function in which an air blower and an air purifying device are housed, wherein the air purifying device has an electric dust collector, and after the power is turned off for a predetermined time when the electrode plates of the electric dust collector are short-circuited. A table with an air control function, which recovers and issues an alarm when the short circuit reaches a predetermined number of times within a predetermined time. 4. The table main body is provided with at least one or more air outlets, and at least one top plate of the table main body is provided.
The above air suction ports are provided, and one or more shielding plates having an area smaller than the area of the top plate are provided above the one or more air suction ports, and the table main body between the air suction ports and the air discharge ports is provided. A table with an air control function, in which an air blower and an air purifying device are housed, wherein the air purifying device has an electric dust collector, and lowers the discharge voltage for a predetermined time when the electrode plates of the electric dust collector are short-circuited. A table with an air control function, which is activated after the short circuit has been reached and a predetermined number of times have been reached within a predetermined time. 5. The table with an air control function according to claim 1, wherein the shielding plate is rotatably and detachably provided on the top plate of the table body.