Dust Removal System

Abstract

To provide a dust removal system capable of efficiently performing dust removal of a person passing through a gate.SOLUTION: A dust removal system 1 performing the dust removal of a person P passing through a gate 10 comprises: an outdoor side blowing portion 40 (first blowing portion) that blows off air from a first direction (a side and obliquely rear side) to the person P operating an opening / closing operation terminal 30 enabling an operation relating to opening / closing of the gate 10; and an indoor side blowing portion 50 (second blowing portion) that blows off air to the person P passing through the gate 10 from a second direction (obliquely front side) different from the first direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a dust removal system technology for removing dust particles adhering to people. [Background technology]

[0002] Conventionally, dust removal system technology for removing dust adhering to people has been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 describes a dust removal system (pollen separation device) installed near the gate (entrance / exit) of a building. The dust removal system described in Patent Document 1 detects people entering or exiting a building and blows air toward the detected people, thereby removing dust (pollen, dust, etc.) that has adhered to the people.

[0004] However, when dust removal is performed near a gate as described in Patent Document 1, it may be difficult to perform sufficient dust removal because people are moving through the gate. In such cases, in order to perform sufficient dust removal, it is necessary to ensure that people stop near the gate for a certain period of time so that air can be blown onto them. However, performing dust removal in this manner can cause problems such as traffic congestion when there are many people passing through the gate. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-20130 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and the problem it aims to solve is to provide a dust removal system that can efficiently remove dust from people passing through a gate. [Means for solving the problem]

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

[0008] That is, claim 1 provides a dust removal system for removing dust from a subject passing through a gate, and includes a first air blowing unit that blows air from a first direction toward the subject operating an opening / closing operation terminal capable of performing operations related to opening and closing the gate, and a second air blowing unit that blows air from a second direction different from the first direction toward the subject passing through the gate.

[0009] In claim 2, the first air blowing unit blows air onto the subject from the side or rear of the subject's walking direction, and the second air blowing unit blows air onto the subject from the front of the subject's walking direction.

[0010] In claim 3, the second blowing section blows air toward the subject at a stronger wind speed than the first blowing section.

[0011] In claim 4, the device further comprises a third air blowing section that is positioned lower than the first air blowing section and the second air blowing section and blows air toward the subject at a wind speed faster than at least one of the first air blowing section and the second air blowing section.

[0012] In claim 5, the device is provided with a traffic direction detection unit that detects the direction of travel of the subject, and a control unit that controls the operation of the first air blowing unit and the second air blowing unit based on the operation of the opening / closing operation terminal and the detection results by the traffic direction detection unit. [Effects of the Invention]

[0013] The present invention has the effect of efficiently removing dust from people passing through the gate. [Brief explanation of the drawings]

[0014] [Figure 1] 1A is a schematic plan view showing a dust removal system according to an embodiment of the present invention, and FIG. 1B is a partially cross-sectional plan view showing a lower portion of the dust removal system. [Figure 2] (a) Plan view of a subject approaching the gate. (b) Plan view of a subject opening the gate. [Figure 3] (a) Plan view of a subject passing through the gate. (b) Plan view of a subject opening the gate from the indoor side. DETAILED DESCRIPTION OF THE INVENTION

[0015] In the following description, the front-rear direction and the left-right direction are defined according to the arrows shown in the drawings.

[0016] A dust removal system 1 according to one embodiment of the present invention will be described below with reference to FIG.

[0017] The dust removal system 1 shown in Fig. 1 removes dust adhering to a target person (hereinafter referred to as "target person P" for convenience). 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).

[0018] The dust removal system 1 according to this embodiment also functions as an opening / closing system that manages the opening and closing of a gate 10, which will be described later. The dust removal system 1 mainly includes the gate 10, a housing 20, an opening / closing operation terminal 30, an outdoor-side blower 40, an indoor-side blower 50, a low-position blower 60, and a pressure sensor 70.

[0019] The gate 10 is provided at an entrance for passing between two partitioned spaces. In this embodiment, as an example, the gate 10 is provided at an entrance for passing between outdoors and indoors (inside a specified building). The gate 10 is provided so as to be rotatable relative to a housing 20, which will be described later. The gate 10 is provided with an opening / closing mechanism that can be opened and closed by operation using an opening / closing operation terminal 30, which will be described later. In this embodiment, an example is shown in which a flap door type gate is used as the gate 10.

[0020] The housing 20 defines a passage route for the subject P passing through the gate 10. A pair of housings 20 are provided on the left and right sides of the gate 10. The housings 20 are formed in a rectangular shape that is long from front to back in a plan view. By arranging the housings 20 in this manner, a passage route for the subject P to move back and forth is defined between the pair of housings 20. The housing 20 is formed hollow and can accommodate appropriate components.

[0021] The opening / closing operation terminal 30 shown in FIG. 1(a) is capable of performing operations related to opening and closing the gate 10. In this embodiment, the opening / closing operation terminal 30 is exemplified by a terminal for a card key system that is capable of opening and closing the gate 10 based on information stored in a card key held by a target person P. The opening / closing operation terminal 30 is placed on the top surface of the housing 20 on both the outdoor side and the indoor side of the gate 10. The opening / closing operation terminal 30 can authenticate the card key of a target person P who passes through the gate 10 and open the gate 10. Furthermore, the opening / closing operation terminal 30 can automatically close the gate 10 when the target person P passes through the gate 10.

[0022] The opening / closing operation terminal 30 according to this embodiment can also control the operation of the outdoor blower 40, the indoor blower 50, and the low-position blower 60 based on the detection results of a pressure sensor 70, which will be described later. The opening / closing operation terminal 30 is composed of an input device that reads card key information, an arithmetic processing device such as a CPU, and storage devices such as RAM, ROM, and HDD.

[0023] The outdoor blower 40 mainly blows air toward the upper body of the subject P. The outdoor blower 40 can send out air by operating a fan as appropriate. The outdoor blower 40 can freely change the speed of the air being blown out by controlling the operation of the fan.

[0024] The outdoor-side blower 40 is also provided with an ion generating unit (not shown) that generates ions (positive ions and negative ions). The ion generating unit can be configured to generate positive ions and negative ions, for example, by corona discharge. There are no particular limitations on the ions generated by the ion generating unit, and any appropriate positive ions and negative ions can be used. Cluster ions, in which water molecules in the air gather around positive ions and negative ions, can also be used as ions. The ions generated by the ion generating unit can be included in the air discharged from the outdoor-side blower 40.

[0025] The outdoor-side blower 40 is disposed closer to the outdoors than the gate 10. The outdoor-side blower 40 is disposed at a height that allows it to blow air mainly onto the upper body of the subject P (for example, a height above the waist and below the top of the head of an average adult). The outdoor-side blower 40 includes a first outdoor-side blower 41 and a second outdoor-side blower 42.

[0026] The first outdoor blower 41 is disposed at the rear of the housing 20. The first outdoor blower 41 is fixed to the housing 20 by a support member or the like (not shown). The first outdoor blower 41 is disposed in a position where it can blow air toward the subject P operating the opening / closing operation terminal 30. Specifically, the first outdoor blower 41 is disposed closer to the outdoors than the gate 10 and in the vicinity of the outdoor opening / closing operation terminal 30 (slightly behind the opening / closing operation terminal 30). The first outdoor blower 41 is disposed so that it can blow air diagonally forward (toward the inside of the left and right sides of the pair of housings 20) in a plan view. Note that, although the present embodiment illustrates an example in which a pair of first outdoor blowers 41 are provided (two in total), one on the left and one on the right, the number of first outdoor blowers 41 can be changed as desired.

[0027] The second outdoor blower 42 is disposed at the rear of the housing 20. The second outdoor blower 42 is disposed in a position where it can blow air toward the subject P who operates the opening / closing operation terminal 30. Specifically, the second outdoor blower 42 is disposed near the outdoor opening / closing operation terminal 30 (slightly behind the opening / closing operation terminal 30), closer to the outside than the gate 10 and forward of the first outdoor blower 41. The second outdoor blower 42 is disposed so that it can blow air toward the sides (to the inside of the left and right of the pair of housings 20). Note that, although the present embodiment illustrates an example in which a pair of second outdoor blowers 42 are provided on the left and right (two in total), the number of second outdoor blowers 42 can be changed as desired.

[0028] The indoor side blower 50 blows air toward the subject P. The indoor side blower 50 can send out air by operating an appropriate fan. The indoor side blower 50 can arbitrarily change the speed of the air being blown out by controlling the operation of the fan.

[0029] The indoor side blower 50 is provided in each of the left and right housings 20. The indoor side blower 50 is positioned so that it can blow air toward a subject P passing through the gate 10. Specifically, the indoor side blower 50 is positioned closer to the indoor side than the gate 10 and in the vicinity of the gate 10. The indoor side blower 50 is positioned so that it can blow air diagonally backward (toward the inside of the left and right sides of the pair of housings 20) in a plan view. Note that, although the present embodiment illustrates an example in which four indoor side blower units 50 are provided, the number of indoor side blower units 50 can be changed as desired.

[0030] The low position air blowing unit 60 shown in FIG. 1(b) mainly blows air toward the lower body of the subject P. The low position air blowing unit 60 can send out air by operating a suitable fan. The low position air blowing unit 60 can arbitrarily change the speed of the air blown out by controlling the operation of the fan.

[0031] The low-position air blowing units 60 are disposed on the outdoor side and indoor side of the gate 10, respectively. The low-position air blowing units 60 are disposed at a height (for example, below the waist height of an average adult) that allows them to blow air mainly onto the lower body of the subject P. The low-position air blowing units 60 are disposed at a lower position than the outdoor-side air blowing unit 40 and the indoor-side air blowing unit 50.

[0032] The low-position air blowing units 60 are arranged in positions where they can blow air toward the subject P who operates the opening / closing operation terminal 30 and the subject P who passes through the gate 10. Specifically, a plurality of low-position air blowing units 60 are arranged from the front end to the rear end of the housing 20 (across the front and rear of the gate 10). The low-position air blowing units 60 are arranged so that they can blow air toward the sides (the inner left and right sides of the pair of housings 20). Note that, although the present embodiment illustrates an example in which a total of ten low-position air blowing units 60 are provided, the number of low-position air blowing units 60 can be changed as desired.

[0033] It should be noted that detachable portable blowers using small DC fans or the like can be used as the outdoor blower 40, the indoor blower 50, and the low-position blower 60. This allows the outdoor blower 40 and the like to be removed during times when dust removal is not required (for example, when there is little pollen), thereby saving space around the gate 10.

[0034] The pressure sensor 70 is for detecting the subject P. The pressure sensor 70 is provided on the floor surface and can detect the load (pressure) applied to the floor surface. The pressure sensor 70 is provided on the floor surface on the outdoor side of the gate 10. In this embodiment, multiple pressure sensors 70 are arranged in a row from near the opening / closing operation terminal 30 on the outdoor side to the rear.

[0035] The dust removal system 1 configured as described above can remove dust from a subject P passing through the gate 10 from the outdoor side to the indoor side. A dust removal method using the dust removal system 1 will be described below with reference to Figs. 2 and 3.

[0036] When a subject P passes through the gate 10 from the outdoors to the indoors, the subject P first approaches the gate 10 from the outdoors, as shown in FIG. 2(a). As the subject P approaches the gate 10, the subject P reaches above the pressure sensor 70. This causes the pressure sensor 70 to detect the load of the subject P.

[0037] When the pressure sensor 70 detects the target person P, the opening / closing operation terminal 30 activates the outdoor-side blower 40. At the same time, the opening / closing operation terminal 30 also activates the low-position blower 60 (see FIG. 1(b)). At this time, the opening / closing operation terminal 30 controls the wind speed of the air blown out by the low-position blower 60 so that it is higher than the wind speed of the air blown out by the outdoor-side blower 40 and the indoor-side blower 50.

[0038] By operating outdoor-side blower 40, air is blown out from outdoor-side blower 40 toward the inside of the left and right sides of housing 20. Opening / closing operation terminal 30 also operates an ion generating unit provided in outdoor-side blower 40. As a result, air containing ions is blown out from outdoor-side blower 40.

[0039] By operating the outdoor blower 40, it is possible to blow wind containing ions toward the subject P who approaches the opening / closing operation terminal 30 and operates the opening / closing operation terminal 30. This eliminates static electricity by discharging electricity from the subject P's clothes, etc. (neutralizing electrically charged parts), making it easier to remove dust using the dust removal system 1. In addition, the wind from the outdoor blower 40 can remove dust adhering to the subject P.

[0040] In particular, in this embodiment, the outdoor-side blower 40 can blow air diagonally from behind and to the side toward the subject P. This allows the outdoor-side blower 40 to effectively remove dust adhering to the back and sides of the subject P.

[0041] As shown in FIG. 2(b), when a target person P approaches the opening / closing operation terminal 30, the target person P operates the opening / closing operation terminal 30 to perform card authentication. Specifically, the target person P holds the card key they possess over the opening / closing operation terminal 30, for example, to cause the opening / closing operation terminal 30 to read the card key information. If the opening / closing operation terminal 30 detects the card key after the pressure sensor 70 has detected the target person P, it determines that the target person P is moving from the outdoor side to the indoor side, and activates the indoor-side blower 50. This causes air to blow from the indoor-side blower 50 toward the inside of the left and right sides of the housing 20. At this time, the opening / closing operation terminal 30 controls the wind speed of the air blown out by the indoor-side blower 50 so that it is higher than the wind speed of the air blown out by the outdoor-side blower 40.

[0042] The opening / closing operation terminal 30 performs authentication based on the information of the card key of the target person P, and if there is no problem, opens the gate 10. When the gate 10 is opened, the target person P passes through the gate 10 forward and moves indoors, as shown in FIG. 3(a). As the target person P passes through the gate 10, air from the indoor ventilation unit 50 is blown toward the target person P.

[0043] Here, even if a slight wind blows on the walking subject P, the subject P is unlikely to feel uncomfortable by the wind. For this reason, in this embodiment, the indoor-side blower 50, which has a higher wind speed than the outdoor-side blower 40, is used to blow wind to the subject P passing through the gate 10. This allows dust to be removed effectively without causing discomfort to the subject P.

[0044] Furthermore, even if wind is blown from the back of a subject P moving forward (indoor side), the relative wind speed hitting the subject P decreases, which may reduce the dust-removal effect of the wind. Therefore, in this embodiment, the indoor-side blower 50 is used to blow wind from the front of a subject P passing forward through the gate 10. By blowing wind from the front of a subject P moving forward in this way, a reduction in the dust-removal effect is prevented. Dust removal from the sides and back of the subject P can be sufficiently achieved by blowing wind from the outdoor-side blower 40 when operating the opening / closing operation terminal 30.

[0045] From the time that the subject P operates the opening / closing operation terminal 30 to open the gate 10 until he or she moves indoors, air is constantly blown towards the subject P from the low-position air blowing unit 60 (see FIG. 1(b)). Although the air speed of the low-position air blowing unit 60 is relatively high, the subject P's lower body (feet) does not feel the wind easily, so dust removal can be performed effectively without causing the subject P great discomfort.

[0046] After the subject P moves indoors, the opening / closing operation terminal 30 stops the outdoor-side blower 40, the indoor-side blower 50, and the low-position blower 60. The timing for stopping the outdoor-side blower 40 and the like can be determined arbitrarily. For example, it is possible to stop the outdoor-side blower 40 and the like when the gate 10 is closed, or to use various sensors to detect that the subject P has entered indoors and stop the outdoor-side blower 40 and the like based on this detection.

[0047] In this way, the target person P moves indoors after the dust has been removed, thereby preventing dust from being brought indoors. Furthermore, when multiple target persons P pass through the gate 10 in sequence, the opening / closing operation terminal 30 opens and closes the gate 10 for each target person P, and also controls the outdoor air blower 40 and the like to remove dust.

[0048] In order to ensure that the subject P is exposed to the wind for a longer period of time, it is also possible to install hand disinfectant or a temperature measuring device near the opening / closing operation terminal 30. This allows the wind to be blown onto the subject P while the subject P is disinfecting his or her hands, etc., so that the wind can be blown onto the subject P for a longer period of time, and ultimately dust removal can be performed more effectively.

[0049] 3(b), when a target person P passes through the gate 10 from the indoor side to the outdoor side, the target person P operates the indoor opening / closing operation terminal 30 to perform card authentication. In this case, since the opening / closing operation terminal 30 is operated without the target person P being detected by the pressure sensor 70, the opening / closing operation terminal 30 can determine that the target person P is attempting to pass through the gate 10 from the indoor side to the outdoor side.

[0050] In this way, when the subject P passes through the gate 10 from the indoor side to the outdoor side, even if the pressure sensor 70 subsequently detects the subject P going outdoors, the opening / closing operation terminal 30 will not activate the outdoor-side air blower 40, the indoor-side air blower 50, and the low-position air blower 60. In other words, the dust removal system 1 detects the direction of travel of the subject P and controls the outdoor-side air blower 40 etc. according to the direction of travel, thereby preventing the outdoor-side air blower 40 etc. from operating even when dust removal is not necessary.

[0051] As described above, the dust removal system 1 according to this embodiment has the following features: A dust removal system 1 that removes dust from a target person P passing through a gate 10, an outdoor-side air blowing unit 40 (first air blowing unit) that blows air from a first direction (side and diagonally rearward) toward the subject P who operates the opening / closing operation terminal 30 that can perform operations related to opening and closing the gate 10; an indoor side blower 50 (second blower) that blows air from a second direction (diagonally forward) different from the first direction toward the target person P passing through the gate 10; It is equipped with the following. With this configuration, dust can be efficiently removed from people passing through the gate 10. That is, by blowing wind at the target person P who operates the opening / closing operation terminal 30 and the target person P who passes through the gate 10, dust can be efficiently removed from the target person P. Furthermore, by varying the direction of the wind blowing at the target person P, dust can be efficiently removed.

[0052] In addition, the outdoor blower 40 is The wind is blown onto the target person P from the side or rear (diagonally rear) of the direction of travel of the target person P, The indoor blower 50 is The wind is blown onto the target person P from the front (diagonally forward) in the direction in which the target person P is walking. This configuration allows for efficient dust removal. That is, by blowing wind from the front of the target P passing through the gate 10, dust can be removed from the target P with a relatively strong wind. In addition, by blowing wind from the side or rear of the target P who is operating the opening / closing operation terminal 30, dust can be removed not only from the front of the target P but also from the side and rear.

[0053] In addition, the indoor blower 50 is The outdoor blower 40 blows air toward the subject P at a higher speed than the outdoor blower 40. With this configuration, the wind speed toward the subject P passing through the gate 10 can be increased, thereby enabling efficient dust removal without causing discomfort to the subject P.

[0054] In addition, the dust removal system 1 is It further comprises a low-position air blowing section 60 (third air blowing section) that is positioned lower than the outdoor air blowing section 40 and the indoor air blowing section 50 and blows air toward the subject P at a wind speed faster than at least one of the outdoor air blowing section 40 and the indoor air blowing section 50. This configuration allows for efficient dust removal. That is, by blowing air at a relatively high speed from low-position air blowing unit 60, which is located at a relatively low position, efficient dust removal can be achieved without causing discomfort to subject P.

[0055] In addition, the dust removal system 1 is a passage direction detection unit (opening / closing operation terminal 30 and pressure sensor 70) that detects the passage direction of the target person P; an opening / closing operation terminal (30) (controller) that controls the operation of the outdoor-side blower (40) and the indoor-side blower (50) based on the operation of the opening / closing operation terminal (30) and the detection result by the passage direction detector; It is equipped with the following. This configuration allows for efficient control according to the direction of travel of the subject P. For example, it is possible to prevent the outdoor-side blower 40 and the like from operating when it is not necessary, such as when the subject P goes from indoors to outdoors.

[0056] The outdoor blower 40 according to this embodiment is one embodiment of a first blower according to the present invention. The indoor blower 50 according to this embodiment is one embodiment of the second blower according to the present invention. The low position air blowing section 60 according to this embodiment is one embodiment of a third air blowing section according to the present invention. The opening / closing operation terminal 30 and the pressure sensor 70 according to this embodiment are one embodiment of a travel direction detection unit according to the present invention.

[0057] 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.

[0058] For example, in the above embodiment, a flap door type gate was used as an example of the gate 10, but the type of gate 10 is not limited to this, and various other gates 10, such as a turnstile type gate, can be applied.

[0059] In the above embodiment, an example was shown in which static elimination was performed by blowing air containing ions from the outdoor air blower 40 onto the subject P, but the static elimination method is not limited to this, and it is also possible to provide a separate device for static elimination. It is also possible to remove dust from the subject P by blowing air alone, without eliminating static electricity from the subject P.

[0060] In addition, in the above embodiment, an example was shown in which the opening / closing operation terminal 30 that opens and closes the gate 10 (locks and unlocks the electronic lock, etc.) also performs control related to dust removal (control of the outdoor air blowing unit 40, etc.), but the present invention is not limited to this, and it is also possible to control the outdoor air blowing unit 40, etc. using a separately provided control device.

[0061] Furthermore, in the above embodiment, an example is shown in which the dust removal system 1 is installed between the outdoors and the indoors, but the present invention is not limited to this and it can be installed in any location (for example, at the entrance or exit of any room in a building). [Explanation of symbols]

[0062] 1 Dust removal system 10 Gates 30 Opening and closing operation terminal 40 Outdoor ventilation section 50 Indoor ventilation section 60 Low position ventilation section 70 Pressure Sensor

Claims

1. A dust removal system for removing dust from people passing through a gate, a first blowing unit that blows air from a first direction toward the subject operating an opening / closing operation terminal capable of performing operations related to opening and closing of the gate; A second blower that blows air from a second direction different from the first direction toward the target person passing through the gate; A dust removal system comprising:

2. The first blower section Blowing wind onto the subject from the side or rear of the subject's passing direction, The second blower section is blowing wind onto the subject from in front of the subject's direction of travel; The dust removal system of claim 1 .

3. The second blower section is The first blower blows air toward the subject at a higher wind speed than the first blower. The dust removal system according to claim 1 or claim 2.

4. Further, a third blower unit is provided which is arranged at a position lower than the first blower unit and the second blower unit and blows air toward the subject at a wind speed stronger than at least one of the first blower unit and the second blower unit. A dust removal system according to any one of claims 1 to 3.

5. a travel direction detection unit that detects the travel direction of the subject; a control unit that controls the operation of the first blower and the second blower based on the operation of the opening / closing operation terminal and the detection result by the passage direction detection unit; Equipped with A dust removal system according to any one of claims 1 to 4.

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