JP6782053B1 - Blower for mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable mask with drawbacks such that the exhaled air of the mask wearer tends to be trapped in the internal space between the mask and the lips and the nasal cavity, and the inner surface of the mask is in direct contact with the lips and the nasal cavity, so that the mask tends to become dirty. However, there was no simple blower to send sterilized external air into this internal space. SOLUTION: The blower for a mask according to the present invention includes 1) a desktop type blower body that sends out external air through a sterilization filter having a virus removal performance equivalent to that of a disposable mask, and 2) a mask. It consisted of a flexible ventilation tube that was inserted into the internal space between the lips and the nasal cavity and guided the sterilized external air sent from the main body of the blower to this internal space. [Selection diagram] Fig. 1

Description

The present invention relates to the structure of a blower that blows external air into the internal space between a disposable mask or a handmade mask and the lips and the nasal cavity, and more specifically, in the gap space between the mask worn on the face and the lips and the nasal cavity. Disposal for removal The present invention relates to a blower for a disposable or handmade mask that sends out disinfected external air through a disinfectant filter. The invention of the present application is a related invention of Japanese Patent Application No. 2020-086374 (portable blower for mask) relating to the same inventor and the same applicant, and in particular, 1) it is used in an environment with a commercial power source such as a general office. It relates to a desktop type air blower for masks and 2) a large air blower system for masks installed in a large-scale facility.

Disposable masks and handmade masks are widely used as a countermeasure against the new coronavirus in recent years. The disadvantages of this mask are 1) the mask wearer's own exhalation (exhaust from the mouth) tends to be trapped in the internal space between the mask and the lips and nasal cavity, and 2) the inner surface of the mask comes into direct contact with the lips and nasal cavity. Therefore, it had drawbacks such as being prone to filth. Especially when you continue desk work while wearing a mask all day in a hot summer office, or when you keep sitting on a chair for a long time in a sealed space such as a sightseeing bus or a movie theater, this drawback is noticeable. was there.

The second embodiment of Japanese Patent Application Laid-Open No. 2005-165242 shown in Attached FIG. 6 discloses a configuration in which clean air from a dust prevention device attached to a cap is supplied to a dust prevention mask. That is, clean air is supplied from the transparent resin hoses 31 and 32 via the clean air means 6, 7, 10 and the hose 11 and the branch adapter 12 attached to the sunshade cap 1. The transparent resin hoses 31 and 32 are attached to the strings 34 and 35 of the dust prevention mask main body 33 so that their ends reach the inside of the mask main body 33, respectively. However, this configuration involves the following problems. The first problem is that the filter 6 used here is only for preventing dust, and has a filter performance different from that of the new coronavirus countermeasure, which has become a problem these days. The second problem is not the idea that the filter 6 has a special cylindrical shape and is easily available everywhere and uses the same material as a general disposable mask that is widely used. Therefore, the filter cannot be easily replaced, and it has a drawback that it tends to be unsanitary. The third problem is that it is unclear how the transparent resin hoses 31 and 32 are attached to the strings 34 and 35, and even if they are attached to the mask string with a clip-shaped fixing member as shown in the figure, for example ( (Refer to paragraph 0030 of the reference), when removing this mask, it is inconvenient to remove this fixing member from the string one by one. The fourth problem is that the dust prevention device in this reference is supposed to be used outdoors, and although it is not specified, it is limited to a battery-powered configuration, so it is assumed that it is a desktop type that will be used for a long time in the office. It is not intended for use in large-scale facilities. Also, it is not supposed to be used by doctors and nurses who move around in the hospital.

Further, in addition to the above reference, there is a medical ventilation system as a prior art related to the present invention, which is an invasive means such as an endotracheal tube inserted through a patient's oral, nasal, or tracheal opening. Instead, a non-invasive ventilation system is disclosed that supplies the patient with fresh respiratory gas through non-invasive means such as a mask, hood, or helmet. For example, Disposable Surgical Masks and Suction Catheter are disclosed in No. 10-513095, and although a small disclosure on page (33), "The instruments of the invention as shown in FIG. 3 There is a short disclosure relating to the present invention that, when used in conjunction with a source of clean, dry air, the wearer can obtain a comfortable zone of use not available in the prior art. However, this mask is equipped with the L-shaped adapter 34 shown in FIG. 2 and the sleeve 26 shown in FIG. 3, which is different from the shape of a so-called general disposable mask that is easily available to anyone. Furthermore, Japanese Patent Application Laid-Open No. 2007-160027 discloses an air purifier, but this also does not presuppose the use of a general disposable mask. Further, Japanese Patent Application Laid-Open No. 2015-35341 discloses an ion generator premised on the use of a disposable mask. However, this configuration is not intended to blow air, but simply to release ions for sterilization and removal of odors, and does not eliminate the exhaled air that fills the mask with external air, and the mask. This device is mounted on the end and is too heavy to be practical. Therefore, there is a demand for a blower device that can be easily attached to general disposable masks and handmade masks, is a countermeasure against the new coronavirus, and is suitable for desk work. Similarly, it is used in large-scale facilities such as sightseeing buses and movie theaters, which are sealed spaces, and is used for large-scale ventilation that sends clean outside air to passengers and spectators individually, not to everyone at once like an air conditioner. The system is required.

Japanese Patent Application Laid-Open No. 2005-165242 Special Table No. 10-513095 JP-A-2007-160027 JP-A-2015-35341

At present, there is no mask that does not allow the mask wearer's own exhalation to be trapped in the internal space between the inner surface of the mask and the lips and nasal cavity when the mask is worn. The current market is looking for a solution to highly breathable mask materials, but this has the risk of overturning the original performance of the mask. Therefore, the problem to be solved is that there is no blower that individually sends out sterilized external air that gives a refreshing feeling to the internal space of the mask while maintaining the original virus protection performance of the mask. Further, there is no blower device that inflates the inner surface of the mask to the outside by an appropriate blow pressure (positive pressure) so that the inner surface of the mask does not come into direct contact with the lips and the nasal cavity. Similarly, in large-scale facilities such as sightseeing buses and movie theaters, which are sealed spaces, there is no large ventilation system that individually sends out sterilized external air that gives a refreshing feeling to the internal space of passengers and spectators' masks. Is.

The blower for a mask according to the present invention is a blower for a disposable or handmade mask that sends sterilized external air to the internal space between the mask of the mask wearer and the lips and the nasal cavity. The specific configuration is (i) a desktop type blower body that sends out external air through a disposable disinfectant filter that has the same level of virus removal performance as a disposable mask, and (ii) between the mask and the lips and nasal cavity. A blower tube that the mask wearer himself inserts into the internal space of the mask, guides the external air sent from the blower body to the internal space, and is flexible and can be pressed and held by pressing pressure on the face of the mask end worn. It is composed of. The sterilized external air discharged from the air discharge port at the tip of the blower tube of the blower for the mask is configured to positively discharge the exhaled air trapped inside the mask. Further, in a large-scale ventilation system, the above-mentioned (i) desktop type blower main body, (ii) blower tube, and (iii) fixed blower pipe for fixing both of them in advance are composed of sterilized external air. Is sent to each individual individually.

Since the external air that has passed through the disinfectant filter is constantly blown from the blower tube to the internal space between the inner surface of the mask and the lips and nasal cavity of the mask wearer, one's exhaled air does not stay in the internal space and a refreshing feeling is obtained. There is an advantage to be. Especially effective in hot summer. In addition, if the mask wearer himself fine-tunes the amount of external air supplied to an appropriate air pressure, the inner surface of the mask to be worn by this air pressure is appropriately separated from the lips and the nasal cavity from the inner surface to the outer surface. Since it can be inflated, it has the advantage that the inner surface of the mask reduces the contact surface that comes into direct contact with the lips and nasal cavity, so that the mask can always be used cleanly. If a large-scale ventilation system according to the present invention is introduced in a large-scale facility such as a sightseeing bus or a movie theater, which is a sealed space, sterilized external air is provided to each passenger and visitors, so that it is a so-called social distance. It is possible to improve management efficiency because it can accommodate a larger number of people by covering the decrease in the number of passengers and the number of visitors due to the above.

FIG. 1 (A) is a perspective view of the desktop type blower according to the first embodiment of the present invention as viewed from the front direction, and FIG. 1 (B) is a perspective view as viewed from the side. FIG. 2 is a perspective view in which a disposable sterilization filter is attached to the upper part of the main body of the blower. FIG. 3A is a block diagram of a blower main body (fan type) constituting the blower, and FIG. 3B is a block diagram of the blower main body (blower type). FIG. 4 is a perspective view of the neck type blower tube. FIG. 5 is a conceptual diagram of a large-scale ventilation system used in a sightseeing bus among the large-scale facilities in the sealed space according to the second embodiment of the present invention. FIG. 6 is a perspective view showing a second embodiment disclosed in Japanese Patent Application Laid-Open No. 2005-165242 showing the prior art most related to the present invention.

(First Example)
FIG. 1 (A) is a perspective view of the desktop type blower 1A for a disposable or handmade mask according to the present invention when actually used, and FIG. 1 (B) is a perspective view seen from the side. It is a figure. The blower 1A is a desktop type blower main body 10 that sends out sterilized external air that has passed through a disposable sterilization filter, and a mask that wears the sterilized external air that is sent from the blower main body 10. It is composed of a blower tube 20 that sends out to the inside. As shown in the mounting diagram of (B), the mask 100 and the blower tube are completely independent of each other, unlike the above reference Japanese Patent Application Laid-Open No. 2005-165242. After wearing the mask, the mask wearer inserts and inserts the blower tube 20 so as to slide from the end of the mask toward the internal space between the inner surface of the mask and the lips and the nasal cavity. Since the blower tube 20 itself is made of a material (for example, vinyl chloride resin) that is flexible and has an appropriate hardness, it can be easily inserted by sliding along the line from the chin to the lips. Further, once the blower tube 20 is inserted into the internal space, it is possible to press and hold the blown tube 20 by pressing pressure on the face of the mask end to which the inserted blower tube 20 is attached. Therefore, the air discharge port 21 at the tip can be loosely fixed at an appropriate position in the internal space of the mask. Further, a porous flat air diffusion member that diffuses air may be attached to the air discharge port 21 so that the air discharge port 21 at the tip of the tube is not blocked. Furthermore, if the control unit (air volume adjustment knob) 12 of the blower main body 10 is adjusted and set to an appropriate blow pressure (positive pressure), the inner surface of the mask to be worn by this blow pressure is appropriately set in the direction away from the lips and the nasal cavity. By inflating the mask to reduce the contact surface where the inner surface of the mask comes into direct contact with the face, the mask can be used cleanly at all times, and it is possible to prevent one's exhalation from being trapped in the internal space.

FIG. 2 is a perspective view in which a disposable sterilization filter is attached to the upper part of the blower main body, and the desktop type blower main body 10 uses a commercial power supply like a personal computer on a desk. Then, a disposable sterilization filter 17 as large as possible is attached to, for example, the upper top surface of the desktop type blower body 10, and the sterilized external air that has passed through the sterilization filter is sent out to the blower tube 20. Then, the sterilized external air that has passed through the sterilization filter 17 is guided to the internal space between the inner surface of the mask of the mask wearer and the lips and the nasal cavity through the blower tube 20, and is discharged from the air discharge port 21 at the tip. The disposable sterilization filter 17 may be a cassette type dedicated sterilization filter or a sheet-shaped general-purpose sheet. The sterilization performance of this sterilization filter is about the same as that of a general disposable mask or a medical mask N95. Therefore, sterilized cool air is ejected into the internal space of the mask 100. Therefore, the sterilized external air sent from the blower device 1A of the present invention cannot impair the sterilizing performance originally possessed by the attached mask. The shape of the sheet used as the sterilization filter 17 is not limited, but a dedicated sheet shape may be used, or the mask wearer cuts both ends of the disposable mask with scissors and develops the cut disposable mask into a sheet shape. If you cut it according to the air intake, you can make it yourself at low cost. Non-woven fabric, which is a chemical fiber such as polypropylene or polyester, which is used for general disposable masks, is used, but as a simple alternative method, if certain sterilization performance is satisfied, a paper filter for coffee can be used. Is. As shown in the figure, if it is a sheet-shaped sterilization filter, the structure is such that it can be easily pressed and attached by the filter holding frame (lattice), so the mask wearer can easily replace the sterilization filter 17 as often as necessary. It is possible to do. The size should be as large as possible to improve the sterilization performance. And, for example, when using it in the office, the mask wearer replaces the sterilization filter about once a day. The sterilization filter 17 is shown here as a sheet-shaped filter, but of course, a bellows-shaped cassette type filter generally used in a vacuum cleaner or the like may be used.

It should be noted here that the sterilized external air supplied to the internal space between the inner surface of the mask and the lip and the nasal cavity by the blower 1A according to the present invention excludes the exhaled air of the mask wearer to the outside of the mask. Most of the inspiration of the mask wearer is still external air through the mask ground worn on the face. That is, in general, human intake air is 8 L to 10 L / min on average, whereas the filtered sterilized external air supplied from the blower 1A according to the present invention to the internal space of the mask is originally equipped with a mask. It is supplied to eliminate the exhaled breath of a person, and it is considered that, for example, about 1.5 L to 2 L / min is sufficient for that purpose. This external air supply capacity is relatively small because it has substantially the same capacity as a small goldfish blower used for supplying air bubbles to, for example, a medium-sized fishbowl. However, the purpose is not limited to small blowers. Even with the blower 1A having such a relatively small external air supply capacity, the exhaled air of the mask wearer himself trapped in the internal space between the inner surface of the mask and the lips and the nasal cavity is sufficiently exhausted, whereby the lips are sufficiently exhausted. And a refreshing feeling can be obtained around the nasal cavity. This refreshing feeling makes it possible to wear a mask for a long time, and the blower 1A of the present invention has an advantage that it can be fully utilized for dealing with the new coronavirus, which has become a problem these days. Further, if the external air supplied by the control unit (air volume adjustment knob) 12 shown in FIG. 2 is appropriately adjusted, the air pressure of the sterilized external air discharged from the air discharge port 21 of the inserted air tube 20 can be used. The inner surface of the mask to be worn can be inflated away from the mouth and nasal cavity to reduce the contact surface where the inner surface of the mask comes into direct contact with the face. The blower body 10 of the blower 1A is placed on a desk, and only the lightweight and flexible blower tube 20 connected to the blower body 10 is placed in close contact with the mask wearer. Since the movement is not unnatural and the tip of the blower tube including the air discharge port is covered with a mask, the blower tube 20 can be comfortably attached even in the office without any unnatural appearance. Although the above is the disclosure of the desktop type blower main body 10, the present application can naturally be used as a portable blower if the power source is a DC power source. In that case, for example, it is possible to use this blower even on a commuter train, and if it is applied to the highly airtight medical mask N95 worn by doctors and nurses moving around in the hospital, the suffocation will be reduced. Because it can be used, it is possible to withstand wearing a mask for a long time.

FIG. 3 (A) shows a block diagram of the blower body (fan type) 10A of the desktop type blower body 10 of the blower device 1A, and FIG. 3B shows a block of the blower body (blower type) 10B. The figure is shown. Compared to general fan-type blowers and aquarium blowers that supply air bubbles to small fish, these 10A and 10B have a disposable germicidal filter 17, an ion generator 18A, an ice pack storage 18B, and a cooling agent. Except for the Peltier element 18C and the germicidal lamp 18D, the configurations are not so different, so detailed description is omitted. That is, the AC power supply unit 11, the control unit (air volume adjustment knob) 12, and the fan unit 14 of the former blower unit main body (fan type) 10A are substantially the same as the configuration of the dust prevention blower according to the conventional example. The present invention differs from the dust-preventing blower according to the conventional example in that the disposable sterilization filter 17 is made of a material having the same sterilization effect as a general disposable mask or a medical mask. The point is that a filter is used. That is filter as used in the blower device according to the prior art, as described above references JP 2005-165242, primarily have foreign substance removal filter is used in terms of foreign matter contamination prevention, blower of the present invention In the main body 10A, a disposable sterilization filter 17 is used from a different viewpoint of virus removal. The external air that has been sterilized by the disposable disinfectant filter 17 and forcibly applied with a constant wind pressure by the fan unit 14 is provided with an ion generating unit 18A, a cooling agent storage unit 18B, and a cooling agent installed near the air outlet as necessary. The Peltier element 18C and the germicidal lamp 18D further cool and highly sterilize. Then, it is discharged from the internal space between the mask and the lips and the nasal cavity via the ventilation tube 20. Further, in the fan-type blower main body, the heat generated by the drive motor is easily sent to the blower tube as it is, so that it is preferable that the motor and the fan have a heat insulating structure between them.

The blower body (blower type) 10B shown in FIG. 3 (B) has basically the same configuration, but in this example, the electromagnetic drive unit 13 that generates an alternating magnetic force and the vibration unit that vibrates due to the generated magnetic force. 14 and a diaphragm pump section 15 that vibrates a diaphragm whose volume is changed by the vibration of the vibration section to push out air are used, respectively. All of these are not different from the prior art. In addition to this, there are various different blower type blowers, but the type does not matter. In either configuration, it is possible to increase the internal wind pressure compared to the fan type, and when the connected blower tube 20 is relatively thin, a higher internal wind pressure is required, so a blower type blower (compressor) Is used. Generally, a fan is used when the pressure ratio inside the blower is 1.1 or less, and a blower type is used when the pressure ratio is higher than that. Since the pressure ratio inside the blower differs depending on the size (cross-sectional area) of the blower tube to be connected, it is a design matter whether to use the fan type or the blower type, and if the blower tube 20 to be connected is thin, the blower If the mold is relatively thick, the fan mold is used. Further, even in this blower type blower main body 10B, the disposable sterilization filter 17 which is an intake port for external air is arranged at a position where heat generated from the electromagnetic drive unit 13 is not taken in, and is configured to take in cool outside air. It has become. In this respect, the configuration of Japanese Patent Application Laid-Open No. 2005-165242 described above is different from the configuration in which the heat generated by the motor is unnecessarily taken in. In the figure, the blower main body (blower type) 10B and the blower tube 20 are shown in a one-to-one relationship, but of course, the blower main body may be enlarged to form one-to-many blower tubes 20.

FIG. 4 shows the configuration of the neck type blower tube 20A using the neck stator 22. That is, when the blower tube 20 is inserted into the internal space of the mask as described above, the inserted blower tube 20 is pressed and held by the pressing force against the face of the attached mask end, and the air discharge port 21 at the tip is the above-mentioned of the mask. Loosely fixed in place in the interior space. However, even if the person wears the mask for desk work, it is conceivable that the person may move more violently than usual while wearing the blower tube 20. Therefore, in the neck type blower tube 20A in which the blower tube 20 is freely attached to the neck stator 22 wrapped around the neck, the blower tube 20 can be stably and loosely fixed at a predetermined position even in such a case. That is, the mask wearer inserts the blower tube 20 from between the disposable mask 100 and the chin, and then wraps the neck stator 22 around the neck to stably fix it. The neck stator 22 is made of a material having appropriate flexibility, and can be freely wrapped around the neck. Then, the air blower tube 20 freely attached to the neck stator 22 is finely adjusted so that the air discharge port 21 at the tip comes to an appropriate position around the lips and nostrils. This makes it possible to attach the blower tube 20 more stably than in the case of pressing and holding only by pressing the face at the end of the mask. In this case as well, since the tip of the blower tube 20 is covered with the disposable mask 100, there is an advantage that there is no discomfort in appearance.

(Second Example)
FIG. 5 is a conceptual diagram of a large-scale ventilation system 1B used in a sightseeing bus among the large-scale facilities in the sealed space according to the second embodiment of the present invention. The large-scale facilities referred to here are, for example, large-scale offices, tour buses, trains and aircraft, school classrooms, movie theaters and concert halls, pachinko parlors, baseball stadiums and soccer fields, etc. It is a broad concept that includes places and facilities that are prone to three honey (sealed, dense, close). Even in such a large-scale facility, a large number of blowers 1 with a disinfectant filter disclosed in the first embodiment are arranged within the control range of a system administrator (for example, a tourist bus driver or a concert hall hall manager). It is possible to provide sterilized external air in the masks of passengers and spectators. The difference from the first embodiment is the existence of the fixed blower pipe 30 fixedly installed in the facility (in this example, the inside of the sightseeing bus). That is, in this large-scale ventilation system 1B, the external air that has passed through the sterilization filter sent from the ventilation unit main body 10C placed near the driver is passed through the fixed ventilation pipe 30 that is fixedly installed under the floor of the bus. It is delivered to a plurality of blower tube connection ports 31 installed in the vicinity of each passenger (for example, an armrest). Then, each passenger inserts the blower tube 20 or My tube distributed in advance from the bus company into the blower tube connection port 31, and each individual obtains the sterilized external air individually, and the inner surface and mouth of his / her own disposable mask. And by delivering to the internal space between the nasal passages, self-exhalation is actively excluded from the mask.

In this case, as the blower main body 10, a large blower main body 10C capable of sending sufficient external air to all passengers is used. In the large blower main body 10C used for this sightseeing bus, a DC power supply of an automobile or an AC power supply converted by an inverter is used. Unlike the air conditioner of the bus, the blower main body 10 is placed near the driver, and the disposable sterilization filter 17 attached to the blower main body 10 is managed by the driver and frequently replaced. On the other hand, in the case of a normal air conditioner, the driver does not frequently change the filter of the air conditioner, and the filter is mainly a dustproof filter and not a sterilization filter. It is different from the fungus filter 17. Further, the external air from the air conditioner is provided to all passengers at the same time, but the present invention is different in that the sterilized external air is individually provided to each individual. The blower tube connection port 31 has a valve body that opens to the inside, and only when the blower tube 20 is inserted, sterilized external air is discharged, and when the blower tube 20 is removed, the valve body is affected by wind pressure. It is closed.

Also, the amount of external air delivered is sufficient to accommodate the number of passenger chairs. In Example 1, in order to eliminate exhaled air (exhaust from the mouth) in the mask, for example, 1.5 L to 2 L / min of sterilized external air is discharged through the sterilization filter 17, but an air conditioner like a sightseeing bus. In the large ventilation system 1B used in a sealed space, even though it is fully equipped, it is possible to cover all of the average human intake air of 8L to 10L / min with this sterilized external air. .. In this way, the configuration that supplies the sterilized external air equivalent to the entire intake air of the mask wearer to the internal space of the mask by the large ventilation system 1B is, for example, to give passengers a sense of security in terms of corona measures, so that other companies' sightseeing It also has the advantage of being advantageous in terms of strategy to differentiate it from the bus. The reason is that even if the air conditioner of the sightseeing bus is fully operated and fresh outside air is taken into the car, if even one corona-infected person is in the car, the exhaled breath of the infected person will spread in the car. This is because the danger remains. In this respect, in the large-scale ventilation system 1B according to the present invention, only the sterilized external air is individually supplied to each passenger via the ventilation tube 20, so that a sense of security can be given. Furthermore, not only the amount of external air, but also the sterilization level of the sterilization filter itself to be used, if a high-performance sterilization filter is used rather than a normal sterilization filter and the passenger is notified to that effect, the high-performance sterilization is performed. The use of filters can be actively appealed to passengers as a selling point, and it has the advantage of being advantageous in terms of strategy to differentiate it from other companies' sightseeing buses. By applying an appropriate amount of air pressure to the internal space, the internal space will be in a positive pressure state against the outside of the mask to prevent the invasion of viruses, while the swollen mask surface will protect against splashes directly from others. Can be done. Further, the blower tube 20 to be inserted into the blower tube connection port 31 is, for example, a member made of vinyl chloride resin having a length of about 1 m and a thickness of about 5 mm, and is very inexpensive. Therefore, the bus company may provide the blower tube 20 to the passengers free of charge, and if the size of the blower tube connection port 31 is standardized, it is possible that each person will carry it as a so-called My tube in the New Normal era. There can be sex.

Providing fresh outside air with air conditioners to employees and bus passengers who work at desks in the office has been a matter of course, and it is important to create a comfortable environment. However, if even one virus carrier is mixed in it, air diffusion by the air conditioner tends to result in spreading the virus. Therefore, in terms of epidemic prevention, it is necessary to individually provide "sterilized external air by a sterilization filter" to each employee and passenger, instead of simply supplying external air to all by air conditioner. In the future, in an era of not only compatibility with the new coronavirus but also social sterilization, office workers and individual passengers will use the desktop blower (1A) of the first embodiment and the large blower system (1B) of the second embodiment. Providing "sterilized external air with a sterilization filter" to the company is considered to be an important sales tool for creating a comfortable working environment and securing passengers. In addition, the large-scale ventilation system (1B) for large-scale facilities is not limited to sightseeing buses, but also large-scale offices, trains and aircraft, school classrooms, movie theaters and concert halls, pachinko parlors, baseball fields and soccer fields, etc. It can be widely applied to places where a specific or unspecified number of people gather.

1A blower (desktop blower for disposable or mask)
1B Large blower system 10 Desktop type blower body 10A Blower body (fan type)
10B Blower body (blower type)
10C Large blower body 12 Blower volume adjustment knob 17 Disposable disinfectant filter 18A Ion generator 18B Cooling agent storage 18C Cooling Peltier element 18D Germicidal lamp 20 Connection tube 20A Neck type connection tube 21 Air outlet 22 Neck stator 30 Fixed Blower pipe 31 Blower tube connection port

Claims (10)

In a desktop blower for disposable or handmade masks that delivers sterilized external air to the mask wearer's interior space between the inside of the mask and the mouth and nasal passages.
With the desktop type blower body (10) that sends out the external air sterilized by the disposable sterilization filter (17) that has the same virus removal performance as the disposable mask;
The wearer himself inserted the mask into the internal space between the inside of the mask and the mouth and the nasal cavity from the end of the mask, and guided the sterilized external air sent from the blower body (10) to the internal space, and was flexibly and worn. A blower tube (20) that can be pressed and held by pressing pressure on the face at the end of the mask, and that the air discharge port (25) at the tip can be loosely fixed at an appropriate position in the internal space of the mask. It is configured to positively discharge the exhaled air trapped inside the mask to the outside of the mask by discharging the sterilized external air from the air discharge port (25) at the tip of the blower tube (20). A desktop blower (1A) for disposable or handmade masks. A claim characterized in that the blower main body (10) is configured to send out sterilized external air that has passed through the sterilization filter by a fan or blower attached to a motor serving as an AC or DC power source. Item 1. The desktop type blower (1A) for a mask according to item 1. A porous flat air diffusion member for diffusing air was attached to the air discharge port (21) of the blower tube (20) inserted into the internal space between the inner surface of the mask and the mouth and nasal cavity of the mask wearer. The desktop type blower (1A) for a mask according to claim 1, characterized in that. The blast pressure of the external air sent out from the inserted blast tube (20) inflates the inner surface of the mask to be worn away from the mouth and nasal cavity, and reduces the contact surface where the inner surface of the mask comes into direct contact with the face. The desktop type blower (1A) for a mask according to claim 1, wherein the blower main body (10) is provided with a blower amount adjusting knob (12) for finely adjusting the blower amount suitable for the above. The desktop type blower (1A) for a mask according to claim 1, wherein the disposable sterilization filter (17) is a commercially available disposable mask or a self-made sheet obtained by cutting out a coffee filter. Any one of the ion generation unit (18A), the ice pack storage unit (18B), the cooling Peltier element (18C), and the germicidal lamp (18D) is installed near the air outlet of the air blower main body (10). The desktop type blower (1A) for a mask according to claim 1, which is configured to send out cool and clean air. In a large ventilation system for large facilities that delivers sterilized external air to the inside of multiple mask wearers and the interior space between the mouth and nasal passages.
With the blower main body (10) according to claim 1, which is installed within the control range of the manager of a large-scale facility;
With a fixed blower pipe (30) that is fixedly connected to the blower body (10) and the blower tube connection ports (31) installed in a plurality of seats in a large-scale facility in a ventilated state;
Individually sterilized external air is introduced into the inner surface of the disposable masks of a plurality of mask wearers sitting in the seat and the internal space between the mouth and the nasal cavity by inserting into the ventilation tube connection port (31). A large-scale ventilation system (1B) for a large-scale facility, which comprises a plurality of blower tubes (20) according to claim 1, which positively exclude the exhaled breath of the mask wearer from the outside of the mask. An unspecified number of people, including large-scale offices, sightseeing buses, trains and aircraft, school classrooms, movie theaters and concert halls, pachinko parlors, baseball stadiums and soccer fields, gathered at the large-scale facilities to become Sanmitsu. The large-scale ventilation system (1B) according to claim 7, wherein an easy place or facility is included. The blower tube (20) is characterized by being a blower tube distributed in advance by the manager of the large-scale facility to a plurality of mask wearers sitting in the seats, or a My blower tube owned by the mask wearer. The large-scale ventilation system (1B) according to claim 7. In a desktop blower for disposable or handmade masks that delivers sterilized external air to the mask wearer's interior space between the inside of the mask and the mouth and nasal passages.
With the desktop type blower body (10) that sends out the external air sterilized by the disposable sterilization filter (17) that has the same virus removal performance as the disposable mask;
The wearer himself inserted the mask into the internal space between the inside of the mask and the mouth and the nasal cavity from the end of the mask, and guided the sterilized external air sent from the blower body (10) to the internal space, and was flexibly and worn. A blower tube (20) that can be pressed and held by pressing pressure on the face at the end of the mask, and can loosely fix the air discharge port (25) at the tip to an appropriate position in the internal space of the mask. By discharging the sterilized external air from the air discharge port (25) at the tip of the blower tube (20), the exhaled air trapped inside the mask is positively discharged to the outside of the mask. A portable blower for disposable or handmade masks.