JP7088994B2 - Tables and sofas that can reduce splashes - Google Patents

Description

The present invention relates to a table and a sofa capable of reducing droplets , and more particularly to a table and a sofa capable of preventing not only normal droplet infection due to a virus or the like but also microdroplet infection due to an aerosol.

Traditionally, influenza (epidemic sensation) has spread every winter, and this disease has been caused by contact infection and droplet infection by various influenza viruses. In recent years, severe respiratory infections caused by SARS virus and MARS virus, which are a type of coronavirus, have also spread mainly in Southeast Asia and the Middle East, but there has been almost no epidemic in Japan. However, since the beginning of 2020, infection with the new coronavirus (COVID-19) has spread all over the world, and pandemics are being called for. Infection with this new coronavirus is also mainly caused by contact infection and droplet infection, and in order to prevent infection, it is necessary to secure so-called social distance, and especially in Japan, avoid so-called three-cs. Recommended. Under such circumstances, in industries where conversations and physical contact (approach) with other people such as so-called sales, entertainment, and eating and drinking are unavoidable, the national and local governments request that the entertainment and restaurants be refrained from doing business, or remote. There is a demand for alternatives such as online sales using communication. However, there are a huge number of restaurants such as high-class restaurants, cafeterias in the town, and bars and clubs that are considered to be the so-called night town, and the facilities inside the restaurant are originally familiar conversations and physical contact (approaching) with the other party. ), It is extremely difficult to avoid the above-mentioned three crowds in the store, and it is expected that the new Corona will be forced to close due to a drastic decrease in the number of visitors.

Therefore, for example, in restaurants and the like, infection control measures such as installing a partition with an acrylic plate or frequently disinfecting with alcohol are taken, and a mask, a mouth shield, and even a face shield are attached. There are also many entertainments and proposals for these infection control devices (see Patent Documents 1 and 2).

Utility model registration No. 3226600 Utility model registration No. 3227242

However, it is difficult to prevent micro-droplet infection due to aerosols with these infection control devices, and for example, in a partition made of an acrylic plate or the like, the customer's cigarette is lit with a lighter, and the customer's glass or the like is taken into consideration. Important entertainment activities such as smoking become dangerous or physically difficult. For this reason, the number of visitors is decreasing due to the red-light district, and many restaurants in the so-called night town are on the verge of closing down. Furthermore, karaoke shops, live houses, gyms, etc., which are said to have frequent clusters, also require conversation (vocalization) and physical contact (guidance), so they are in danger of survival in the era of With Corona. For this reason, not only these restaurants and interpersonal sales, but also a wide range of infection control technologies that can prevent droplet infections while enabling physical contact (proximity) and conversation with others, as well as mitigating microdroplet infections. Development is coveted.

An object of the present invention is to provide an infection control technique that solves the above-mentioned problems and can prevent not only droplet infection but also microdroplet infection while enabling physical contact (proximity) and conversation with another person. To do.

As a result of diligent research on a novel and useful infection prevention technique, the present inventor discharges a table capable of reducing droplets in a downward band shape with a blowing means for blowing gas and a gas blown from the blowing means. An upper air duct provided with a slit-shaped air outlet, a suction means for sucking the gas blown from the upper air duct, and a band-shaped gas blown downward from the upper air duct through the suction means. A lower suction duct provided with a suction port capable of suction, a duct arranging means for arranging the upper air duct and the lower suction duct at a predetermined interval above and below, and suction to the lower suction duct. It has a discharge duct for discharging the gas toward the floor surface, and the band-shaped gas flowing downward from the upper ventilation duct to the lower suction duct allows the mouths of people facing each other through the table and the mouths of people facing each other. / Or a part of the droplets emitted from the nose is sucked into the lower suction duct and discharged from the discharge duct toward the floor surface, and the droplets scattered beyond the band-shaped gas to the other side of the table. By lowering the scattering angle and dropping it into the other side of the table, it is possible to reduce the amount of the droplets reaching the other party's body , enabling physical contact (proximity) and conversation with others. However, it was found that not only the droplet infection can be prevented but also the micro-droplet infection can be reduced.

That is, in order to achieve the above object, the splash-reducable table of the present invention is used by people facing each other via the table, and an air device installed substantially in the middle of the people on the table. The air device is provided with an upper air blowing duct having a blowing means for blowing gas, a slit-shaped air outlet for discharging the gas blown from the blowing means downward in a strip shape, and an upper blowing duct. A suction means for sucking the gas blown out from the upper part, a lower suction duct provided with a suction port capable of sucking the gas blown downward from the upper air duct in a band shape as it is through the suction means, and the upper part. A duct arranging means for arranging the ventilation duct and the lower suction duct at a predetermined interval above and below, a discharge duct for discharging the gas sucked into the lower suction duct toward the floor surface, and a duct for discharging the gas sucked into the lower suction duct toward the floor surface. A part of the droplets ejected from the mouth and / or nose of people facing each other through the table is sucked by the band-shaped gas flowing downward from the upper air duct to the lower suction duct. It is sucked into the duct and discharged from the discharge duct toward the floor surface, and the droplets scattered beyond the band-shaped gas to the other side of the table are lowered to drop them into the other side of the table. This is characterized by reducing the amount of the droplets reaching the other party's body . Further, a virus-adsorbing carpet or the like may be separately laid on the floor surface.

In the splash-reducing table , at least the upper air duct, the lower suction duct, and the duct arranging means are provided as an integrated unit on the table, and the duct arranging means includes the upper air duct and the lower suction. Not only is it a member for arranging the duct vertically at a predetermined interval, but it is also an air tube that circulates air downward or upward, and the table has a cavity formed inside. It may have legs so that the legs and internal cavities function as drain ducts . Further, the table that can reduce splashes is composed of a table-integrated intake unit and a table-separated air blower unit combined, and in the table-integrated intake unit, at least the lower suction duct is on the table. It is provided as an integrated suction unit, and in the table-separated type blower unit, at least the upper blower duct and the duct arranging means are provided as an integral blower unit, and further, a mounting unit for mounting the blower unit on the table. May have . The present inventor develops and proposes two types of devices, an integrated type and a separate type, with respect to the device of the present invention for the following reasons. That is, if the spread of infection subsides in the future and the need for preventive measures diminishes, the blower unit will become very obtrusive. However, it cannot be ruled out that the infection may spread again seasonally or in some areas. Therefore, the separate type blower unit itself is removed, and the table unit is covered with the table top plate (thin top plate or table cloth made of the same or similar material as the original top plate), so that the device is not used. Even in that case, it can be used as a normal table without any discomfort. In this way, the merit of the isolated type is that it can be used properly depending on the time when the infection spreads and the time when it does not.

In the splash-reducing table , the upper air duct, the lower suction duct, and the duct arranging means are provided as a unit that is independent and movable from the floor, and further, the distance between the upper air duct and the lower suction duct and / Alternatively, it may have an interval / height adjusting member capable of adjusting the height position of the lower suction duct, and may have a discharge duct provided so as to communicate with the lower surface side of the lower suction duct . Further, the sofa is provided with an air device that is used by people adjacent to each other via the sofa and is installed substantially in the middle of the people in the sofa, and the air device is a blowing means for blowing gas. An upper air duct provided with a slit-shaped air outlet that discharges the gas blown from the air blower downward in a strip shape, a suction means that sucks the gas blown from the upper air duct, and an upper air duct. The lower suction duct provided with a suction port capable of sucking the gas blown downward in a strip shape as it is via the suction means, and the upper air blow duct and the lower suction duct move up and down.
It has a duct arranging means for arranging the ducts at predetermined intervals, and a duct for discharging the gas sucked into the lower suction duct toward the floor surface. A band-shaped gas flowing downward to the lower suction duct sucks a part of the droplets emitted from the mouth and / or nose of adjacent people through the sofa into the lower suction duct and sucks it from the discharge duct to the floor surface. By lowering the scattering angle of the droplets scattered toward the other side of the sofa beyond the band-shaped gas, it is possible to reduce the droplets reaching the other party's mouth and / or nose. In the sofa, the upper air duct, the lower suction duct, and the duct arranging means may be configured as an elbow rest unit by using a structure including the lower suction duct as an elbow rest. ..

According to the present invention, it is possible to provide an infection prevention technique capable of preventing not only droplet infection but also microdroplet infection while enabling physical contact (proximity) and conversation with another person.

It is a figure which shows the structure of the splash reduction apparatus (basic principle type) which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the basic principle and operation effect of the splash reduction apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the splash reduction apparatus (table integrated type) which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the intake unit integrated with a table among the splash reduction apparatus (table unit) which concerns on 3rd Embodiment of this invention. It is a figure which shows the structure of the table separation type blower unit among the splash reduction apparatus (table unit) which concerns on 3rd Embodiment of this invention. It is a figure which shows the structure of the splash reduction apparatus (self-supporting movable unit from the floor) which concerns on 4th Embodiment of this invention. It is a figure which shows the structure of the splash reduction apparatus (the elbow rest unit for a club snack cabaret club) which concerns on 5th Embodiment of this invention.

Hereinafter, the splash reduction device according to the embodiment of the present invention will be described with reference to the drawings.
(First embodiment: basic principle type)
FIG. 1 is a diagram showing a configuration of a splash reduction device (basic principle type) according to the first embodiment of the present invention. As shown in FIG. 1, the splash reduction device 100 of the present embodiment has a blower fan (duct fan) 102 as a blower means for blowing gas, and a slit for discharging the gas blown from the blower fan 102 downward in a band shape. An upper air duct 106 having a shaped outlet 104, a suction fan (axial flow fan) 108 as a suction means for sucking the gas blown out from the outlet 104, and a gas blown downward from the outlet 104 in a strip shape. A duct arrangement for arranging a lower suction duct 112 having a suction port 110 that can be sucked in a band shape as it is via a suction fan 108, and an upper ventilation duct 106 and a lower suction duct 112 at predetermined intervals above and below. It has columns 114A and 114B as means, and a discharge duct 118 for discharging the gas sucked into the lower suction duct 112 toward the floor surface 116, and has an upper air duct 106 (outlet 104). The band-shaped gas flowing downward from the lower suction duct 112 (suction port 110) is characterized in that the flying of droplets between R and L on both sides of the band-shaped gas is reduced.

Here, with reference to FIG. 2, the basic principle and the action and effect of the splash reduction device 100 of the present embodiment will be described. FIG. 2 is a diagram for explaining the basic principle and the action and effect of the splash reduction device according to the embodiment of the present invention. As shown in FIG. 2, in the splash reduction device (basic principle type) 100 according to the first embodiment of the present invention, a person A and a person B sit on chairs 202A and 202B, respectively, with a table 200 sandwiched between them. When having a conversation or a meeting while facing each other, the table 200 is installed and used at a substantially central position so that both persons A and B are located on both sides of the above-mentioned band-shaped gas. Here, the important target of the present invention at the time of proposing and filing the droplet reduction device of the present invention is the droplets / micro-droplets generated by breath, cough, sneezing, etc. during conversation / non-conversation of a coronavirus-infected person. The (aerosol) reaches the other side (the other side of conversation, etc.) and directly invades the nose, mouth, etc. while flying in the air, or the other party touches the (micro) droplets attached to the clothes, etc. by hand. After that, it is infected by touching the nose, mouth, etc. with the hand, or the other party is similarly infected through the (micro) droplets that have fallen into the space on the other side of the table and adhered. By the way, various findings have begun to be obtained regarding the new coronavirus, and for example, how to spread microsprays (aerosols) in trains by simulation using supercomputer Tomitake has been announced. Further, in order to effectively shield the droplets containing the new coronavirus, it is desirable that the height of the conventional acrylic plate or the like is at least the height of the human head. Therefore, as shown in FIG. 2, even in the splash reduction device 100 according to the present embodiment, the upper ventilation duct 106 (outlet 104) is set to the height of the heads of both persons A and B in a sitting state. It is set. Further, ordinary air is used as the gas blown from the blower fan (duct fan) 102 (see FIG. 1).

As shown in FIGS. 1 and 2, in the splash reduction device 100 according to the present embodiment, the band-shaped air flowing downward from the upper air blowing duct 106 (outlet 104) to the suction port 110 of the lower suction duct 112 is used. The flying of droplets between R and L on both sides of the band-shaped air is reduced. That is, even if either one of the person A and the person B shown in FIG. 2 is infected with the new coronavirus and contains an infectious virus in its saliva, runny nose, etc., for example, the person A In the case of an infected person, the droplets generated by coughing, sneezing, etc. of the person A are blocked by the band-shaped air as shown by arrows a1 and a2, and are sucked into the lower suction duct 112 together with the band-shaped air. It is discharged from the discharge duct 118 toward the floor surface 116. Therefore, it is prevented that these droplets fly to the side of the person B. In the present embodiment, a carpet 220 having a virus adsorption property is laid on the floor surface, and the air discharged toward the floor surface 116 is blown onto the carpet 220, so that the new coronavirus contained in the droplets can be removed. It is also possible to prevent it from adsorbing and re-scattering.
On the other hand, when the person B is an infected person, the droplets generated by the person B's coughing, sneezing, etc. are not shown by the arrows, but are sucked into the lower suction duct 112 together with the band-shaped air as in the case of the person A. After that, the air is discharged from the discharge duct 118 toward the floor surface 116. Further, even if there is a micro-spray (aerosol) generated by breathing during conversation of the person B, as shown by arrows b1 and b2, it is refracted downward by the band-shaped air, and the upper surface of the table 200 on the person A side. Since it falls and adheres to the person A, it is possible to prevent it from adhering to the clothes or the like of the person A. Therefore, it is possible to effectively reduce the risk of infection by thoroughly disinfecting the upper surface of the table with alcohol. The discharge duct 118 is provided with a filtering member (filter) for filtering and discharging the air sucked into the lower suction duct 112, and the filtering member has, for example, a virus equivalent to that of a so-called N95 mask. It is also preferable to use an adsorptive (impermeable) material. It is also conceivable to irradiate the carpet 220 with ultraviolet rays by a separately provided ultraviolet irradiation device (not shown) to inactivate the virus.

(Second embodiment: table integrated type)
Next, the splash reduction device according to the second embodiment of the present invention will be described. FIG. 3 is a diagram showing a configuration of a splash reduction device (table integrated type) according to a second embodiment of the present invention. As shown in FIG. 3, in the splash reduction device 300 of the present embodiment, at least the upper ventilation duct 306, the lower suction duct 312, and the support ducts 314A and 314B as duct arranging means are provided as an integrated unit on the table 330. ing. In the present embodiment, the support ducts 314A and 314B, which are the duct arranging means, are not only members for arranging the upper ventilation duct 306 and the lower suction duct 312 at predetermined intervals in the vertical direction, but also the support columns. The duct 314A circulates the air taken in from the air intake 303 downward by the suction force of the duct fan 305, and the support duct 314B circulates the air passing through the duct fan 305 upward to the upper ventilation duct 306. It has a function as a pipe (duct). As shown in FIG. 3, in the splash reducing device 300 of the present embodiment, a cavity 332a is further formed in the leg 332 of the table 330, that is, the leg 332 and the cavity 332a function as a discharge duct. It has become. The cavity 332a is formed so as to communicate with the table-embedded lower suction duct 312 shown by the broken line in the figure. A duct fan 335 is provided in the cavity 332a, and is blown out from the slit-shaped outlet 304 of the upper ventilation duct 306 and flows into the lower suction duct 312 through the suction slit 312A formed on the table surface. However, the air is sucked by the duct fan 335, flows into the cavity 332a, and is exhausted from the discharge port 332b on the bottom surface side of the leg 332 toward the floor surface 320 (the gap between the floor surface 320 and the table pedestal 336). Both sides (front side and rear side) sandwiching this band-shaped air by the band-shaped air formed by sucking the band-shaped air blown out from the slit-shaped outlet 304 through the suction slit 312A on the table surface. It is the same as the first embodiment that the flying of droplets between F and B is reduced.

(Third embodiment: table unit)
Next, the splash reduction device according to the third embodiment of the present invention will be described. 4 and 5 are views showing the configuration of a splash reduction device (table unit) according to a third embodiment of the present invention, FIG. 4 is a table-integrated intake unit, and FIG. 5 is a table-separated air blower. Indicates a unit. That is, as shown in FIGS. 4 and 5, the splash reduction device 400 of the present embodiment is configured by combining a table-integrated intake unit (FIG. 4) and a table-separated air blower unit (FIG. 5). .. First, in the table-integrated intake unit (FIG. 4), a slit-shaped suction port 412A is formed on the surface of the top plate 440A of the table 440, and the sucked air passes through the center pole and the table pedestal (base portion). It is discharged from the gap between the 436 and the adjusters 439 at the four corners for height adjustment. That is, in the table-integrated intake unit (FIG. 4), at least the lower suction duct 412 is provided as an integral suction unit in the table 440. Further, in the table-separated type ventilation unit (FIG. 5), at least the upper ventilation duct 502 and the support column 504A as the duct arranging means are provided as an integrated ventilation unit, and further, the ventilation unit composed of these is provided. It has a mounting portion 506 to be mounted on the table 440 (see FIG. 4), and the two sandwiching members 506a and 506b of the mounting portion 506 are provided with ribs (not shown) under the top plate 440A of the table 440. Assemble with the table 440 side by inserting it into.
The present inventor develops and proposes two types of devices, an integrated type and a separate type, with respect to the device of the present invention for the following reasons. That is, if the spread of infection subsides in the future and the need for preventive measures diminishes, the blower unit will become very obtrusive. However, it cannot be ruled out that the infection may spread again seasonally or in some areas. Therefore, the separate type blower unit itself is removed, and the table unit is covered with the table top plate (thin top plate or table cloth made of the same or similar material as the original top plate), so that the device is not used. Even in that case, it can be used as a normal table without any discomfort. In this way, the merit of the isolated type is that it can be used properly depending on the time when the infection spreads and the time when it does not.

First, as shown in FIG. 4, in the table-integrated intake unit 444 of the present embodiment, the lower suction duct 412 is provided as a suction unit integrated with the table 440. Further, a cavity 432a is formed in the leg 432 of the table 440, that is, the leg 432 and the cavity 432a function as a discharge duct. A duct fan 435 is provided in the cavity 432a, and is blown out from the slit-shaped air outlet 503 of the upper air duct 502 of the table-separated type air unit (FIG. 5) described later, and is formed on the surface of the table 440. The air that has flowed into the suction duct 412 through the suction slit 412A is sucked by the duct fan 435 and flows into the cavity 432a, and is exhausted from the discharge port 432b on the bottom surface side of the leg 432 toward the floor surface 420. Ru. Adjusters 439 are provided on the lower surfaces of the four corners of the table pedestal (base portion) 436, respectively, and these adjusters 439 allow the table 440 to move on the floor surface 420. As shown by the arrow 436k, the above-mentioned exhaust gas is discharged in all directions from the gap between the floor surface 420 and the table pedestal (base portion) 436 formed by the presence of the adjuster 439. The band-shaped air blown out from the slit-shaped outlet 503 is sucked through the suction slit 412A on the surface of the table 440, and the band-shaped air is formed on both sides (front side and rear side) sandwiching the band-shaped air. The fact that the flying of droplets between F and B on the side) is reduced is the same as in the first and second embodiments.

Next, as shown in FIG. 5, in the table-separated type ventilation unit 555 (FIG. 5) of the present embodiment, the upper ventilation duct 502 and the support column 504A as the duct arranging means are provided as an integrated ventilation unit. Further, it has a mounting portion 506 for mounting the ventilation unit composed of these on the table 440 (see FIG. 4), and the two sandwiching members 506a and 506b of the mounting portion 506 are mounted on the table 440. It is assembled with the table 440 side by inserting it into a rib (not shown) provided under the plate 440A. In the intake unit 444 shown in FIG. 4, four suction slits 412A formed on the surface of the table 440 are formed, but in the blower unit 555 shown in FIG. 5, the slit-shaped outlet 503 also has a slit-shaped outlet 503. Although not shown, it may be formed in four pieces, or two blower units 555 in which two slit-shaped air outlets 503 are formed may be assembled with one table 440 side. good.

(Fourth embodiment: self-supporting movable unit from the floor)
Next, the splash reduction device according to the fourth embodiment of the present invention will be described. FIG. 6 is a diagram showing a configuration of a splash reduction device (self-supporting movable unit from the floor) according to the fourth embodiment of the present invention. As shown in FIG. 6, in the splash reduction device 600 of the present embodiment, the upper ventilation duct 602, the lower suction duct 604, and the support column 606 as a duct arranging means are provided as a unit that is independent and movable from the floor 660. Further, it has an interval / height adjusting member 608 capable of adjusting the interval between the upper ventilation duct 602 and the lower suction duct 604 and / or the height position of the lower suction duct 604. That is, as shown in FIG. 6, in the splash reduction device 600 of the present embodiment, the support column 606 as a duct arranging means is configured as a pole that is self-supporting from the floor surface 660 through the lower suction duct 604, and is configured at the lower end of the pole. Is formed with a five-leaf pedestal 614 provided with casters 614a. A coiled core is engraved on the lower half of the pole, and the height of the lower suction duct 604 is moved up and down within the height range in which the coiled core is engraved by the adjusting screw portion 618. The position is adjustable. The band-shaped air blown out from the slit-shaped outlet 603 is sucked through the suction port 604A by eight axial flow fans 609 provided in series with the lower suction duct 604, thereby forming a band-shaped air. Similar to the first to third embodiments, the flying of droplets between R and L on both sides (right side and left side) sandwiching the band-shaped air is reduced. The air sucked by the axial flow fan 609 of the lower suction duct 604 flows in the discharge duct (flexible duct) 616 provided in communication with the lower surface side of the lower suction duct 604, and is exhausted toward the floor surface 660. ..

(Fifth embodiment: elbow rest unit for club, snack, cabaret club)
Next, the splash reduction device according to the fifth embodiment of the present invention will be described. FIG. 7 is a diagram showing a configuration of a splash reduction device (elbow rest unit for a club, snack, cabaret club) according to a fifth embodiment of the present invention. As shown in FIG. 7, the splash reduction device 700 of the present embodiment has an elbow rest via the lower suction duct 704, which is integrated with the upper ventilation duct 702, the lower suction duct 704, and the support column 706 as a duct arranging means. It is provided as a unit. That is, in the splash reduction device 700 of the present embodiment, the structure 705 including the lower suction duct 704 is formed like a relatively wide elbow rest, and this elbow rest unit is installed on a chaise longue (sofa) 707, for example. By allowing the guest and the hostess to sit on both sides thereof, the flying of droplets between both sides of the elbow rest, that is, between the guest and the hostess is reduced. It should be noted that the band-shaped air blown out from the slit-shaped outlet 708 of the upper air duct 702 is sucked through the suction port 704A by eight axial flow fans 709 provided in series with the lower suction duct 704. It is the same as the first to fourth embodiments that the band-shaped air to be formed reduces the flying of droplets between R and L on both sides (right side and left side) sandwiching the band-shaped air. .. The air sucked by the axial flow fan 709 of the lower suction duct 704 flows in the discharge duct (flexible duct) 726 provided in communication with the lower end side of the tip of the lower suction duct 704, and is exhausted toward the floor surface 739. Ru.

According to the splash reduction device 700 of the present embodiment, the elbow rest unit is installed on the chaise longue (sofa) so that the customer and the hostess can sit on both sides thereof, so that the customer puts the elbow on the elbow rest. In addition to being comfortable, it is possible to reduce the flying of droplets between both sides of the elbow rest, that is, between the customer and the hostess. Moreover, since an acrylic plate or the like is not used for shielding, it is possible for the hostess to let his hand pass through the band-shaped air to give a drink to the customer, or to light the customer's cigarette with a lighter.

[Modification example]
It should be noted that, instead of a chair, as a modified example, a stand-up unit used in combination with a table for eating and drinking while sitting between boards and tatami mats can be considered. However, since it is not possible to exhaust air toward the floor surface, equipment such as providing an exhaust path inside the floor will be required. Further, the splash reduction device itself does not have a fan or the like, and it is conceivable to provide a central air circulation facility such as blowing air from an external ventilation means and sucking air by an external suction means.

In the embodiment described above, the present invention has been applied to the aspect of the customer service system in which the table and the chair or the sofa are combined, but the present invention is also used in other uses or embodiments within the scope of the claims. It can be widely applied. For example, although air is used as the band-shaped curtain, other gases such as ozone may be used. To completely deactivate the virus, the ozone concentration is said to be harmful to the human body, but using ozone from a household ozone generator, which is not so high, also reduces virus infection. It is possible. Further, the band-shaped gas curtain may be a double or triple curtain, that is, there may be a plurality of slit-shaped air outlets, suction ports, and the like. Furthermore, the principle of the present invention can be applied and developed as a gas curtain that reduces the flying of droplets between the stage and the audience seats in theaters, live houses, and the like.

100, 300, 400, 600, 700 splash reduction device, 102 blower fan (duct fan), 104, 304, 503, 708 outlet, 106, 306, 502, 602, 702 upper blower duct, 108 suction fan (axial flow) Fan), 110 suction port, 112, 312, 412, 604, 704 lower suction duct, 114A, 114B, 504A, 606, 706 stanchion, 116 floor, 118 discharge duct, R, L both sides, A, B person, 200 table, 202A, 202B chair, a1, a2, b1, b2 arrow, 220 carpet, 314A, 314B prop duct, 330 table, 303 air intake, 305, 335 duct fan, 332 legs, 332a cavity, 312A suction slit, 332b Discharge port, 320 floor surface, 336, 436 table pedestal, F, B both sides (front side and rear side), 440 table, 440A top plate, 412A suction port, 439 adjuster, 506 mounting part, 506a, 506b pinching member, 444 Intake unit, 555 blower unit, 660, 739 floor surface, 608 interval / height adjustment member, 614a caster, 614 pedestal, 618 adjustment screw part, 609, 709 axial flow fan, 604A, 704A suction port, 616, 726 discharge duct (Flexible duct) 705 structure, 707 chaise longue (sofa),

Claims (5)

A table provided with an air device that is used by people facing each other via the table and is installed substantially in the middle of the people on the table. The air device is a blowing means for blowing a gas. An upper air duct provided with a slit-shaped air outlet that discharges the gas blown from the air blower downward in a strip shape, a suction means that sucks the gas blown from the upper air duct, and a suction means that sucks the gas blown from the upper air duct downward. A lower suction duct provided with a suction port capable of sucking the gas blown out in a band shape as it is via the suction means, and the upper air blow duct and the lower suction duct are arranged at a predetermined interval above and below. It has a duct arranging means for arranging the duct and a duct for discharging the gas sucked into the lower suction duct toward the floor surface, and has a strip-shaped flow downward from the upper ventilation duct to the lower suction duct. A part of the droplets emitted from the mouth and / or nose of people facing each other through the table is sucked into the lower suction duct and discharged from the discharge duct toward the floor surface, and the above-mentioned It is characterized by reducing the scattering angle of the droplets that have scattered beyond the band-shaped gas to the other side of the table and causing the droplets to fall into the other side of the table, thereby reducing the amount of the droplets reaching the other side of the table. A table that can reduce splashes . In the table according to claim 1, at least the upper air blowing duct, the lower suction duct, and the duct arranging means are provided as an integral unit in the table, and the duct arranging means is the upper air blowing means. Not only is it a member for arranging the duct and the lower suction duct at predetermined intervals above and below, but it is also an air pipe that circulates air downward or upward, and the table is hollow inside. A table capable of reducing splashes , characterized in that the legs are formed of, and the legs and internal cavities function as discharge ducts . The table that can reduce splashes according to claim 1 is composed of a table-integrated intake unit and a table-separated blower unit in combination. In the table-integrated intake unit, at least a lower suction duct is used. Is provided as an integrated suction unit on the table, and in the table-separated type blower unit, at least the upper blower duct and the duct arranging means are provided as an integral blower unit, and the blower unit is mounted on the table. A table that can reduce splashes , characterized by having a mounting part . In the splash-reducable table according to claim 1, the upper ventilation duct, the lower suction duct, and the duct arranging means are provided as self-supporting and movable units from the floor, and further, the upper ventilation duct and the lower suction duct. It has an interval / height adjusting member that can adjust the interval and / or the height position of the lower suction duct, and also has a discharge duct that is provided so as to communicate with the lower surface side of the lower suction duct. A table that can reduce splashes . It is a sofa provided with an air device that is used by people adjacent to each other via the sofa and is installed substantially in the middle of the people in the sofa. An upper air duct provided with a slit-shaped air outlet that discharges the gas blown from the air blower downward in a strip shape, a suction means that sucks the gas blown from the upper air duct, and a suction means that sucks the gas blown from the upper air duct downward. A lower suction duct provided with a suction port capable of sucking the gas blown out in a band shape as it is via the suction means, and the upper air blow duct and the lower suction duct are arranged at a predetermined interval above and below. It has a duct arranging means for arranging the duct and a duct for discharging the gas sucked into the lower suction duct toward the floor surface, and has a strip-shaped flow downward from the upper ventilation duct to the lower suction duct. A part of the droplets emitted from the mouth and / or nose of people adjacent to each other through the sofa is sucked into the lower suction duct and discharged from the discharge duct toward the floor surface, and the band shape. It is a splash-reducable sofa that reduces the amount of the droplets reaching the other party's mouth and / or nose by lowering the scattering angle of the droplets that have exceeded the gas and reaches the other side of the sofa. A sofa capable of reducing splashes , wherein the lower suction duct and the duct arranging means are configured as an elbow rest unit by using a structure including the lower suction duct as an elbow rest.

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