Dust Removal System

Abstract

To provide a dust removal system capable of effectively removing dust.SOLUTION: A dust removal system is equipped with a floor material 40 provided in a passage 5 of a predetermined area (pollen floor 6) in a facility 1, and a floor discharging device 50 that charges the floor material 40 so as to adsorb dust to the floor material 40.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a dust removal system for removing dust within a facility. [Background technology]

[0002] Conventionally, techniques for removing dust adhering to facility users have been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 describes an air shower that removes dust by blowing clean air onto users in an air shower room.

[0004] Here, even if air is blown from an air shower, it may not be possible to completely remove dust from users. In this case, dust may enter the facility as users move around. Therefore, a dust removal system that can effectively remove dust is desired. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-139636 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above circumstances, and a problem to be solved by the present invention is to provide a dust removal system capable of effectively removing dust. [Means for solving the problem]

[0007] The problem to be solved by the present invention has been described above, and the means for solving this problem will now be described.

[0008] That is, in claim 1, the present invention comprises a floor material provided in a passageway in a predetermined area of ​​a facility, and a floor discharge device for charging the floor material so that the floor material attracts dust. The flooring material has an anti-allergenic property that inactivates allergens in the adsorbed dust. It is something.

[0009] In claim 2, The facility includes a floor material provided in a passageway in a specified area within the facility, and a floor discharge device that charges the floor material so that the floor material attracts dust, and the floor discharge device can remove electricity from the floor material that has been charged by the floor discharge device. It is something.

[0010] In claim 3, The facility is provided with a floor material provided in a passageway in a specified area within the facility, a floor discharge device that charges the floor material so that the floor material attracts dust, and a dust removal device that is provided at the entrance to the specified area and is capable of removing the dust. The dust removal device includes an ion generating unit that generates ions that can remove electricity, and an air blowing unit that can remove dust by blowing out air containing the ions. It is something.

[0011] In claim 4, The system comprises a floor material provided in a passageway in a specified area of ​​a facility, a floor discharge device that charges the floor material so that the floor material attracts dust, and an air conditioner that conditions at least the specified area, the air conditioner having a filter that can remove dust from the air introduced into the specified area. It is something.

[0012] In claim 5, The floor material includes a static control section that is formed to be difficult to charge, and a charging section that is provided in a portion different from the portion where the static control section is provided and is formed to be easily charged, and the floor discharge device charges the charging section of the floor material. It is something. Effect of the Invention

[0014] The present invention has the following advantages.

[0015] In claim 1, dust can be effectively removed. In addition, dust containing allergens can be efficiently inactivated while being adsorbed onto the flooring material.

[0016] In claim 2, Dust can be effectively removed. In addition, by removing electricity when cleaning floor materials, dust can be easily removed.

[0017] In claim 3, Dust can be effectively removed. In addition, dust adhering to the user can be removed before the user passes over the floor material.

[0018] In claim 4, Dust can be effectively removed, and air containing dust can be prevented from being introduced into a predetermined area.

[0019] In claim 5, It is possible to prevent the user from becoming charged while still allowing dust to be attracted to the charging portion. [Brief description of the drawings]

[0021] [Figure 1] 1A is a side view showing a facility in which a dust removal system according to a first embodiment of the present invention is installed, and FIG. 1B is a plan view showing a pollen-prevention floor. [Diagram 2]FIG. 1 is a perspective view showing a schematic diagram of a dust removal system. [Diagram 3] FIG. 1 is a block diagram showing a dust removal system. [Figure 4] (a) is an exploded plan view showing the floor material, (b) is a plan view showing the floor material and the floor discharge device. [Diagram 5] 4 is a flowchart showing control executed by the dust removal system. [Figure 6] FIG. 2 is a perspective view showing a schematic diagram of dust removal by the dust removal system. [Figure 7] (a) A schematic diagram showing a floor mat in a charged state and (b) a schematic diagram showing a floor mat in a neutralized state. [Figure 8] FIG. 11 is a plan view showing a floor mat and a floor discharge device according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The dust removal system 10 according to the first embodiment of the present invention will be described below. In the following description, the front-rear direction, left-right direction, and up-down direction will be defined based on the arrows in the drawings.

[0023] First, a facility 1 in which a dust removal system 10 is installed will be described with reference to FIG. 1. The facility 1 has a space available for users. As shown in FIG. 1(a), the interior of the facility 1 is divided into multiple floors. In this embodiment, an example is shown in which the facility 1 is an accommodation facility such as a hotel. The facility 1 is equipped with elevators used for movement between floors. In this embodiment, an example is shown in which two elevators are installed. Each floor is provided with an elevator entrance / exit 2, an elevator hall 3, guest rooms 4, and a passageway 5.

[0024] 1(b) and 2 is for passengers to get on and off the elevator. The elevator entrances 2 are provided in a number corresponding to the number of elevators (two in this embodiment).

[0025] The elevator hall 3 shown in Figure 1(b) and Figure 2 is a space where passengers get on and off the elevator. The elevator hall 3 faces two elevator entrances 2.

[0026] The guest room 4 shown in Fig. 1(b) is a space where a user (guest) stays. A plurality of guest rooms 4 are provided on each floor.

[0027] 1(b) and 2 is for passing between the elevator hall 3 and the guest rooms 4. The passage 5 faces the entrance to the elevator hall 3 and the entrance to each of the guest rooms 4. The passage 5 is formed so as to extend in one direction (front-to-back direction).

[0028] A user of facility 1 gets on an elevator from elevator hall 3 on the first floor, gets off at elevator hall 3 on the destination floor, and passes through passageway 5 to enter a designated guest room 4.

[0029] Next, the dust removal system 10 will be described with reference to Figs. 1 to 4. The dust removal system 10 removes dust that enters the interior of the facility 1. Here, dust refers to particles suspended in the air, such as pollen. In addition to pollen, dust includes particles such as sand dust, fine dust, and PM2.5 (particulate matter with a particle size of 2.5 μm or less). Pollen from cedar, cypress, and the like contains allergens (allergens) that cause allergic symptoms (hay fever). For this reason, for example, if pollen attached to the clothes of a user enters the interior of the guest room 4, it is considered that a user with hay fever will not be able to stay comfortably.

[0030] The dust removal system 10 is installed on a specific floor (hereinafter referred to as the "pollen control floor 6") among the floors of the facility 1, where measures have been taken to prevent pollen from entering the guest rooms 4. Specifically, the dust removal system 10 is installed in the elevator hall 3 and the corridor 5 on the pollen control floor 6. The dust removal system 10 can prevent pollen from entering from outside into the interior of the guest rooms 4 on the pollen control floor 6. The dust removal system 10 includes a human sensor 20, an air shower 30, floor material 40, a floor discharge device 50, an air conditioner 60, and a control unit 70.

[0031] 2 and 3 detects information used for the operation of the dust removal system 10. The human presence sensor 20 includes a first human presence sensor 21 and a second human presence sensor 22.

[0032] The first human presence sensor 21 is a sensor capable of detecting the presence or absence of a user getting off the elevator through the elevator entrance 2 in the elevator hall 3 on the pollen prevention floor 6. As the first human presence sensor 21, for example, one that detects people using infrared rays or ultrasonic waves can be adopted. The first human presence sensor 21 is placed in the elevator hall 3 so as to be able to detect users getting off from each of the two elevator entrances 2.

[0033] The second human presence sensor 22 is a sensor capable of detecting the presence or absence of a user heading from the elevator hall 3 to the passageway 5 on the pollen control floor 6. A sensor having a similar configuration to the first human presence sensor 21 can be used as the second human presence sensor 22. The second human presence sensor 22 is installed near the entrance / exit on the passageway 5 side of the elevator hall 3.

[0034] The air shower 30 shown in Figs. 1 to 3 is for removing dust adhering to the clothes of a user by blowing out air. The air shower 30 is formed in a gate shape. A pair of air showers 30 are provided with a space between them, sandwiching an area through which users pass. The air shower 30 is formed in a generally rectangular shape that is long vertically when viewed from the front (when viewed in the opposite direction). The air shower 30 is installed at the entrance to the passage 5 side of the elevator hall 3. The air shower 30 can be configured to incorporate a filter such as a HEPA filter and blow out purified air. The air shower 30 is equipped with an air blowing unit 31, an ion generating unit 32, an air intake unit 33, a pollen sensor 34, and a microparticle sensor 35.

[0035] The blower 31 is a section that blows air towards the user. The blower 31 blows out wind generated by the operation of an appropriate fan. The blower 31 can blow air at a wind speed of, for example, 5 to 20 m / s. A plurality of blowers 31 are formed on the surface (front) of the air shower 30 that faces the user. In this embodiment, an example is shown in which two rows of three blowers 31 are provided with a gap between them vertically (six in total). The number of blowers 31 is not limited to the above example, and any number can be set.

[0036] The ion generating unit 32 generates ions (positive ions and negative ions). The ion generating unit 32 may be configured to generate positive ions and negative ions by corona discharge. Specifically, the ion generating unit 32 electrically decomposes molecules in the air (e.g., water molecules) by corona discharge caused by applying a voltage to a pair of electrodes, and generates positive ions (hydrogen ions (H + )) and negative ions (oxygen ions (O2 - )) is generated.

[0037] The ions generated by the ion generating unit 32 include hydrogen ions (H + ) and oxygen ions (O2 -), and appropriate positive ions and negative ions can be used. In addition, cluster ions in which water molecules in the air gather around positive ions and negative ions can also be used as the ions. The ion generating unit 32 is provided inside the air shower 30 so that the air blown out by the blower 31 can contain ions. The ion generating unit 32 is disposed, for example, near the blower 31.

[0038] Here, if the user's clothes, etc. are statically charged (electrified), the clothes, etc. may attract dust, making it difficult to remove dust using the air shower 30. Therefore, the ions (positive ions and negative ions) generated by the ion generating unit 32 can be used to neutralize the user's clothes, etc. (electrically neutralize the charged parts), thereby removing static electricity and making it easier to remove dust using the air shower 30.

[0039] The intake section 33 is a section that sucks in dust together with air. The intake section 33 sucks in air by operating an appropriate fan. The intake section 33 is provided in front of the air shower 30, below the blower section 31. The intake section 33 may be equipped with an appropriate filter that collects dust. Dust blown off the user's clothes by the blower section 31 is removed by being sucked into the intake section 33.

[0040] The pollen sensor 34 is a sensor capable of measuring the amount of pollen in the air. As the pollen sensor 34, a sensor that optically detects pollen taken into the pollen sensor 34 can be used. The pollen sensor 34 is provided inside the intake unit 33.

[0041] The microparticle sensor 35 is a sensor capable of measuring the amount of microparticles in the air, such as PM2.5. As the microparticle sensor 35, a sensor that optically detects microparticles taken into the microparticle sensor 35 can be used. The microparticle sensor 35 is provided inside the intake section 33.

[0042] 1(b), 2 and 4 constitute the floor of the passage 5. The floor material 40 is provided over the entire passage 5. The floor material 40 includes a temporary lining 41, an insulating sheet 42 and a floor mat 43.

[0043] The dummy 41 shown in Fig. 4(a) constitutes the base of the floor material 40. The dummy 41 is provided on a structure (such as a floor slab) that constitutes the floor. As the dummy 41, an appropriate plate-shaped member can be used.

[0044] The insulating sheet 42 is a sheet-like member having insulating properties. The insulating sheet 42 is provided on the upper surface of the temporary layer 41. The insulating sheet 42 is made of a material having appropriate insulating properties.

[0045] The floor mat 43 constitutes the surface (upper surface) of the floor material 40. The floor mat 43 is provided on the upper surface of the insulating sheet 42. The floor mat 43 is made of a material that is relatively easy to be charged. Specifically, the floor mat 43 is made of a chemical fiber that has insulating properties and is easy to be negatively charged (easily charged with negative electricity). As a material for the floor mat 43, for example, a material that has an evaluation value (grade) of 4 (floor materials and floors that cannot be said to have antistatic performance) evaluated in accordance with "JIS A 1455 (Antistatic performance of floor materials and floors - Measurement and evaluation method)" and is easy to be charged (polypropylene (PP), polyethylene (PE), acrylic, etc.) can be used.

[0046] The floor mat 43 has an anti-allergenic property that inactivates allergens in dust such as pollen. As a method for imparting anti-allergenic property to the floor mat 43, for example, a method of attaching a suitable inactivating agent to the floor mat 43 can be adopted. As the inactivating agent, a substance that inactivates allergens by photocatalysis or a chemical agent containing a component that inactivates allergens can be adopted. When pollen comes into contact with the floor mat 43 having anti-allergenic property, the allergens are inactivated.

[0047] The floor discharge device 50 shown in Figures 2, 3 and 4(b) is capable of charging and removing static electricity from the floor mat 43. A pair of floor discharge devices 50 are provided at both ends of the width direction (left and right direction) of the floor mat 43. A plurality of floor discharge devices 50 are provided at predetermined intervals (e.g., 20 meter intervals) along the longitudinal direction of the passage. The floor discharge device 50 comprises a discharge device 51 for charging and a discharge device 52 for removing static electricity.

[0048] The charge discharge device 51 discharges negative ions by corona discharge to charge the floor mat 43. Similar to the ion generating unit 32, the charge discharge device 51 applies a voltage to electrodes to electrically decompose molecules in the air (e.g., water molecules) and generate positive ions (hydrogen ions) and negative ions (oxygen ions).

[0049] Here, the charge discharge device 51 performs corona discharge so as to emit mainly negative ions among the generated ions. As the charge discharge device 51, any suitable configuration capable of emitting negative ions can be adopted.

[0050] The discharge device 52 for neutralization emits positive ions by corona discharge to neutralize the charged floor mat 43. The discharge device 52 for neutralization generates positive ions (hydrogen ions) and negative ions (oxygen ions) in the same manner as the discharge device 51 for charging.

[0051] Here, the discharge device 52 for static elimination performs corona discharge so as to emit mainly positive ions among the generated ions. As the discharge device 52 for static elimination, any suitable configuration capable of emitting positive ions can be adopted.

[0052] The air conditioner 60 shown in Figs. 3 and 6 is capable of introducing (supplying) air to the pollen prevention floor 6. The air conditioner 60 is installed, for example, so as to be embedded in a wall. The air conditioner 60 has an air supply section (not shown) that sends out air and an air intake section (not shown) that takes in air. The air supply section and the air intake section are provided in appropriate positions such as the elevator hall 3, the guest rooms 4, and the passageway 5. The air intake section may also be capable of taking in outside air. As the air conditioner 60, various air conditioners such as the indoor unit of a multi-air conditioner for buildings and an outdoor air conditioning unit can be used.

[0053] By operating the air conditioner 60, the air in the pollen prevention floor 6 can be ventilated. The air conditioner 60 is equipped with a filter, such as a HEPA filter, that can remove dust particles, viruses, and the like from the air. This allows the air supplied to the pollen prevention floor 6 by the air conditioner 60 to be purified.

[0054] The control unit 70 is capable of processing various types of information. The control unit 70 is mainly composed of an arithmetic processing unit such as a CPU, and storage devices such as a RAM, a ROM, and a HDD. The control unit 70 is connected to be able to communicate with the human sensor 20, the air shower 30, the floor discharge device 50, and the air conditioner 60. Various locations can be used as the location for installing the control unit 70. For example, the control unit 70 may be provided in the air shower 30, or may be installed in an appropriate location within the facility 1 (for example, an office, etc.).

[0055] The dust removal system 10 operates the air shower 30, floor discharge device 50, and air conditioner 60 under the control of the control unit 70, thereby preventing pollen from entering the guest rooms 4 on the pollen-prevention floor 6 from outside. Operations that can be performed by the dust removal system 10 will be described below with reference to the flowchart in FIG. 5.

[0056] First, as shown in step S10, the control unit 70 starts the air shower 30 based on the detection of a user by the first human presence sensor 21. That is, when the first human presence sensor 21 detects a user, the control unit 70 presumes that the user has got off the elevator, and operates the air blower 31, ion generator 32, and air suction unit 33 of the air shower 30.

[0057] As shown in step S11, the air shower 30 neutralizes the static electricity of a user who has entered the elevator hall 3 and removes dust from the user (see FIG. 6). That is, the air shower 30 neutralizes the user's clothes, etc. with ions (positive ions and negative ions) generated from the ion generating unit 32, and blows away dust adhering to the user's clothes, etc. with the wind blown out from the blowing unit 31. The dust is sucked into the intake unit 33. In this way, the air shower 30 can remove dust such as pollen adhering to the user's clothes, etc.

[0058] Here, the control unit 70 can control the operation of the blower unit 31, ion generator unit 32 and suction unit 33 based on the detection results of the pollen sensor 34 and the microparticle sensor 35 while the air shower 30 is in operation. Specifically, the control unit 70 can execute control to increase the output of the blower unit 31 and the suction unit 33 when the detection results of the pollen sensor 34 and the microparticle sensor 35 are high. The control unit 70 can also execute control to decrease the output of the blower unit 31 and the suction unit 33 when the detection results of the pollen sensor 34 and the microparticle sensor 35 are low. The control unit 70 stops the operation of the air shower 30 when a predetermined time (for example, about 5 to 10 seconds) has passed since the air shower 30 was started.

[0059] Furthermore, as shown in step S12, the control unit 70 activates the charge discharge device 51 based on the detection of a user by the second human presence sensor 22. That is, when the second human presence sensor 22 detects a user, the control unit 70 presumes that the user is heading from the elevator hall 3 to the passage 5, and activates the charge discharge device 51 to generate negative ions (see FIG. 6).

[0060] By generating negative ions by the charge discharge device 51, the floor mat 43 can be negatively charged (charged with static electricity) as shown in Fig. 7(a). As a result, even if dust such as pollen that could not be completely removed by the air shower 30 falls onto the floor material 40 as the user walks, it can be attracted and adsorbed by the floor mat 43. This makes it possible to prevent the pollen from scattering again. Also, dust containing allergens such as pollen can be efficiently inactivated while being adsorbed to the floor mat 43.

[0061] The control unit 70 can execute control to continue the operation of the charge discharge device 51 until the floor mat 43 reaches a predetermined charge amount based on the measurement result of an appropriate electrostatic sensor (not shown) capable of measuring the charge amount of the floor mat 43. The charge amount of the floor mat 43 can be appropriately set from the viewpoint of favorable adsorption of dust such as pollen. Note that instead of such an embodiment, a control can be adopted in which the charge discharge device 51 is activated until a predetermined time has elapsed.

[0062] In this embodiment, since the insulating sheet 42 is provided under the floor mat 43, it is difficult for static electricity accumulated in the floor mat 43 to escape. Therefore, after the charge discharge device 51 is activated, the floor mat 43 continues to be charged for a while.

[0063] As described above, in this embodiment, each time a user who has entered the pollen-protected floor 6 from another floor passes through the elevator hall 3 or the passageway 5, the air shower 30 and the static discharge device 51 are activated.

[0064] Furthermore, as shown in step S13, the control unit 70 activates the static elimination discharge device 52 when cleaning the floor material 40. That is, when removing dust such as pollen adsorbed by the floor mat 43 by cleaning, the control unit 70 activates the static elimination discharge device 52 to generate positive ions. The control unit 70 can start up the static elimination discharge device 52 in response to an operation on a predetermined operation unit (not shown). The floor material 40 is cleaned, for example, once a day (in the morning, etc.).

[0065] 7(b), the negatively charged (statically charged) floor mat 43 can be neutralized and neutralized. In this manner, the control unit 70 can switch the floor mat 43 between a charged state and a non-charged state (neutralized state) by activating the charge discharge device 51 and the static electricity discharge device 52.

[0066] As described above, by neutralizing the static electricity of the floor mat 43, dust can be easily removed from the floor mat 43. Therefore, by neutralizing the static electricity of the floor mat 43, it is possible to make it easier to clean the floor mat 43 (floor material 40). In addition, in this embodiment, dust (pollen) is inactivated by the floor mat 43 having antiallergenic properties, so that even if dust scatters during cleaning, it has little impact on people with hay fever.

[0067] An appropriate vacuum cleaner or the like can be used to clean the floor mat 43. By cleaning the floor mat 43, it is possible to remove dust brought onto the pollen-prevention floor 6 that was not completely removed by the air shower 30 and is instead adsorbed onto the floor mat 43.

[0068] As described above, the dust removal system 10 according to the first embodiment of the present invention has the following features: A floor material 40 provided in a passage 5 in a predetermined area (pollen-prevention floor 6) in the facility 1; A floor discharge device 50 that charges the floor material 40 so that the floor material 40 attracts dust; It is equipped with the following.

[0069] With this configuration, dust can be effectively removed. That is, by electrically charging the floor material 40, when dust such as pollen attached to a user falls onto the floor material 40, the dust can be attracted and adsorbed to the floor material 40. This allows the dust adsorbed to the floor material 40 to be effectively removed.

[0070] In addition, the floor material 40 is It has anti-allergenic properties that inactivate allergens in adsorbed dust particles.

[0071] With this configuration, dust containing allergens such as pollen can be efficiently inactivated while being adsorbed onto the flooring material 40.

[0072] In addition, the floor discharge device 50 is The floor discharge device 50 can eliminate static electricity from the floor material 40 that has been charged.

[0073] With this configuration, by eliminating electricity when cleaning the floor material 40, dust can be easily removed.

[0074] The system further includes a dust removal device (air shower 30) that is provided at the entrance to the specified area (pollen-prevention floor 6) and can remove dust. The dust removal device (air shower 30) is an ion generating unit 32 that generates ions capable of eliminating static electricity; A blower 31 capable of removing dust by blowing out air containing the ions; It is equipped with the following.

[0075] With this configuration, dust adhering to the user can be removed before the user passes over the floor material 40. In addition, by performing dust removal by the air blower 31 after static elimination by the ion generating unit 32, effective dust removal is possible.

[0076] The dust removal system 10 also includes: The room further includes an air conditioner 60 for conditioning at least the predetermined area (the pollen-prevention floor 6), The air conditioner 60 is It is equipped with a filter capable of removing dust from the air introduced into the specified area (pollen-resistant floor 6).

[0077] With this configuration, it is possible to prevent air containing dust from being introduced into a predetermined area (pollen-resistant floor 6).

[0078] The pollen-proof floor 6 according to this embodiment is one form of the predetermined area according to the present invention. The air shower 30 according to this embodiment is one form of a dust removal device according to the present invention.

[0079] Although the embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0080] For example, in the first embodiment, the entire floor mat 43 is charged by the charge discharge device 51, but the present invention is not limited to this. For example, the configuration of a floor mat 43A according to a second embodiment of the present invention shown in FIG. 8 may be adopted.

[0081] The floor mat 43A according to the second embodiment differs from the floor mat 43 according to the first embodiment in that a portion of the floor mat 43A is not charged. The following mainly describes the differences from the floor mat 43 according to the first embodiment. Also, the same reference numerals as in the first embodiment are used for the common parts with the floor mat 43 according to the first embodiment, and the description thereof will be omitted as appropriate.

[0082] The floor mat 43A, like the floor mat 43 according to the first embodiment, constitutes the surface (upper surface) of the floor material 40. The floor mat 43A has been subjected to an anti-allergen treatment. The floor mat 43A includes a static control portion 44 and a static charge portion 45.

[0083] The static control portion 44 is a portion of the floor mat 43 that is difficult to be charged. The static control portion 44 is provided mainly in the widthwise center portion of the floor mat 43A. In addition to the widthwise center portion of the floor mat 43A, the static control portion 44 is also provided in the portion in front of the entrance (door 4a shown in FIG. 8) of the passenger compartment 4 in the aisle 5. The width dimension of the static control portion 44 is formed to be larger than the width dimension of the charged portion 45.

[0084] The static control section 44 is made of a material that is relatively difficult to charge. Specifically, the static control section 44 may be made of a material that has a chargeability value of 3 kV or less (preferably 1 kV or less) measured in accordance with, for example, "JIS L 1021-16:2007 (Test methods for textile floor coverings - Part 16: Electrostatic charge - Walking test method)". The static control section 44 may be made of a material that has an evaluation value (grade) of 1 (floor materials and floors with extremely high antistatic performance), 2 (floor materials and floors with relatively high antistatic performance), or 3 (floor materials and floors with antistatic performance) evaluated in accordance with, for example, "JIS A 1455 (Antistatic performance of floor materials and floors - Measurement and evaluation method)". In this embodiment, the static control section 44 is made of a conductive material such as chemical fiber or metal fiber (metal fiber) that has been appropriately antistatically treated.

[0085] The area below the static electricity suppressing portion 44 is configured to easily dissipate static electricity from the static electricity suppressing portion 44. For example, instead of providing the insulating sheet 42 below the static electricity suppressing portion 44, a base having appropriate electrical conductivity may be provided.

[0086] The charged portion 45 is a portion of the floor mat 43 that is more easily charged than the static control portion 44. The charged portion 45 is provided on both sides of the width of the floor mat 43A, except for the portion in front of the entrance / exit of the passenger compartment 4. The charged portion 45 is formed from a material that is relatively easily charged, similar to the floor mat 43 according to the first embodiment. The charged portion 45 is switched between a charged state and a neutralized state by a floor discharge device 50 (a discharge device 51 for charging and a discharge device 52 for neutralizing static electricity).

[0087] In the case where floor mat 43A as described above is used, when charging is performed by charge discharge device 51, static control portion 44 is not charged, and mainly only charging portion 45 is charged. In this way, by charging charging portion 45, dust can be attracted to and adsorbed onto charging portion 45.

[0088] Furthermore, when floor mat 43A is used, static control portion 44, which is provided at a position in passage 5 where users can easily pass, is not charged, thereby making it possible to prevent the clothes of a user who walks on static control portion 44 from being charged. This makes it possible to prevent painful discharges that may occur when the user touches the doorknob of guest room 4 due to static electricity accumulated on the user's clothes.

[0089] As described above, the floor material 40 (floor mat 43A) according to the second embodiment of the present invention is, A static electricity control section 44 formed to be difficult to be charged; a charging section 45 provided in a portion different from the portion where the static electricity control section 44 is provided and formed to be easily charged; Equipped with The floor discharge device 50 charges the charging portion 45 of the floor material 40 .

[0090] With this configuration, it is possible to cause the charging portion 45 to attract dust, while preventing the user from becoming charged.

[0091] The dust removal system 10 according to the present invention is not limited to the examples described in the above embodiments, and can be installed in the interior spaces of various buildings.

[0092] For example, in each of the above embodiments, the dust removal system 10 is configured to activate the air shower 30 and the floor discharge device 50 based on detection by the human presence sensor 20, but is not limited to this configuration. For example, if it is estimated based on the user's elevator operation or the like that the user will use a guest room 4 on a pollen-prevention floor 6, a configuration can be adopted in which the control unit 70 predicts the time when the user will pass through the elevator hall 3 or the passageway 5, and activates the air shower 30 and the floor discharge device 50 at an appropriate timing.

[0093] In addition, in this embodiment, the output strength of the air blower 31 and the air suction unit 33 is controlled based on the detection results of the pollen sensor 34 and the microparticle sensor 35 while the air shower 30 is in operation, but this is not limited to the above. For example, the outputs of the air blower 31 and the air suction unit 33 may be kept constant, and control may be performed to extend or shorten the operation time of the air shower 30 based on the detection results of the pollen sensor 34 and the microparticle sensor 35.

[0094] In addition, in this embodiment, the static elimination discharge device 52 is activated when the floor material 40 is cleaned, and the floor mat 43 is de-electrified. However, the timing for de-electrifying the floor mat 43 is not limited to when the floor material 40 is cleaned, and any appropriate timing can be adopted.

[0095] In the present embodiment, the floor mat 43 (floor mat 43A) is switched between a charged state and a neutralized state using two types of devices, the charge discharge device 51 and the neutralization discharge device 52, but the present invention is not limited to this. For example, one device may be used as both the charge discharge device 51 and the neutralization discharge device 52.

[0096] Further, in the present embodiment, an example in which the air shower 30 is provided has been shown, but the present invention is not limited to this, and the air shower 30 may not be provided.

[0097] Further, in the present embodiment, an example has been given in which the facility 1 is an accommodation facility, but the present invention is not limited to this, and the facility 1 may be various facilities such as an office building or an apartment building. [Explanation of symbols]

[0098] 1 Facility 10 Dust Removal System 30 Air Shower 40 Flooring 50 Floor discharge device 60 Air conditioner 70 Control section

Claims

1. A flooring material provided in a passageway in a predetermined area within the facility; A floor discharge device that charges the floor material so as to attract dust to the floor material; Equipped with The flooring material is It has anti-allergenic properties that inactivate allergens in adsorbed dust particles. Dust removal system.

2. A flooring material provided in a passageway in a predetermined area within a facility; A floor discharge device that charges the floor material so as to attract dust to the floor material; Equipped with The floor discharge device is The floor discharge device can eliminate the static electricity from the floor material. Dust removal system.

3. A flooring material provided in a passageway in a predetermined area within a facility; A floor discharge device that charges the floor material so as to attract dust to the floor material; A dust removal device provided at an entrance of the predetermined area and capable of removing dust; Equipped with The dust removal device includes: an ion generating unit that generates ions capable of eliminating static electricity; A blower capable of removing dust by blowing out air containing the ions; Equipped with Dust removal system.

4. A flooring material provided in a passageway in a predetermined area within a facility; A floor discharge device that charges the floor material so as to attract dust to the floor material; An air conditioner that conditions at least the predetermined area; Equipped with The air conditioner is A filter capable of removing dust from the air introduced into the specified area is provided. Dust removal system.

5. The flooring material comprises: A static electricity control section formed to be difficult to be charged; a charging section provided in a portion different from a portion where the static control section is provided and formed to be easily charged; Equipped with The floor discharge device charges the charging portion of the floor material. A dust removal system according to any one of claims 1 to 4.

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