Dust and bacteria control shoe cleaner device

Abstract

This invention provides a shoe cleaner device for dust and bacteria control that is suitable for dealing with harmful substances adhering to the soles of workers' work shoes during work at waste disposal sites, powder processing plants, etc. Specifically, it removes foreign matter such as dust and even invisible viruses attached to the soles of work shoes by using air pressure to detach them at entrances to poultry farms, etc. [Solution] A dry-type shoe cleaner device 10 for dust and bacteria control that removes and collects dust and bacteria adhering to the soles of work shoes at the entrances and exits of a building by using air pressure to detach them, comprising a sole placement stand 20 including a through portion on which the sole of a work shoe is placed while wearing it, and a high-pressure pulsed air spraying member 40 having an attracting member 30 attached to the tip of the nozzle that sprays high-pressure pulsed air toward the sole of a shoe placed on the sole placement stand 20, wherein a pulsed air dispersion member 50 is installed on the tip side of the attracting member 30.

Description

Technical Field

[0001] The present invention relates to a shoe cleaner device for dust and bacteria countermeasures that removes and recovers foreign substances such as dust and bacteria adhering to the shoe sole by peeling them off at the entrance of a building or the like (without using water and by air pressure).

Background Art

[0002] During work at a waste treatment plant, powder factory, etc. (for example, asbestos removal work), appropriate measures are required to prevent harmful substances (such as harmful fine dust such as dioxins) adhering to work clothes, etc. (worn by workers) from scattering into the outdoor atmosphere. In response to this requirement, an air shower room that simultaneously blows off dust, bacteria, etc. adhering to the entire body (including the worker) with strong air has become widespread. In the air shower room, jet air blows from both side surfaces and the ceiling, blowing off harmful substances (such as harmful fine dust such as dioxins) adhering to the work clothes, and is captured by a pre-filter provided at the suction port at the lower part of the air shower room and a main filter inside.

[0003] Although the air shower room can remove harmful substances (such as harmful fine dust such as dioxins) adhering to the clothes of workers during work at a waste treatment plant, powder factory, etc., it cannot remove harmful substances adhering to the soles of the work boots of workers. In addition to harmful substances such as fine dust, damage caused by bacteria, for example, serious damage to chicken farms due to avian influenza, also frequently occurs. In view of such a situation (the demand to remove dust, bacteria, etc. adhering to the soles of work boots), the applicants have intensively developed, and have arrived at the present invention that can remove foreign substances such as dust and bacteria (such as avian influenza virus) adhering to the soles of work boots.

[0004] Patent Document 1 discloses a shoe sole cleaning device (Patent Document 1: Title of Invention) that aims to "maximize the flow velocity and flow rate of air impacting the sole surface of a shoe by concentrating the suction area within a predetermined range without dispersing it, thereby providing a shoe sole cleaning device with high dust removal efficiency (Abstract: Problem)" and "a shoe sole cleaning device comprising two flexible contact blades with thin tips, an intake housing that holds the two contact blades in parallel and has an intake port formed between the two contact blades and a connection port communicating with the intake port, and a floor-shaped stand on which the contact blades are arranged to protrude upward. Furthermore, a bathtub is provided on the stand that stores enough water to immerse the shoe sole and is equipped with a brush-shaped cleaning tool that contacts the sole surface of the shoe (Abstract: Solution)." [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2010-22652 [Overview of the project] [Problems that the invention aims to solve]

[0006] The shoe sole cleaning device described in Patent Document 1 (Patent Document 1: Title of Invention) is a wet shoe sole cleaning device, as described in claim 2, "It stores enough water to immerse the shoe soles, and..." In use cases like those of the present invention, namely, when removing harmful substances attached to the soles of work shoes during work in a waste disposal plant, powder processing plant, etc., and collecting and processing the attached material (harmful substances), the shoe sole cleaning device described in Patent Document 1 (Patent Document 1: Title of Invention) is not a dry type, so a separate wastewater treatment process is required to treat the wastewater containing harmful substances, which is undesirable.

[0007] The object of the present invention is to provide a dust and bacteria control shoe cleaner device suitable for hazardous substance control, which can remove foreign matter such as dust adhering to the soles of workers' work shoes at the entrance of a waste disposal plant, powder processing plant, etc., by using air pressure (without using water), or remove foreign matter such as bacteria (e.g., avian influenza virus) at the entrance of a poultry farm (without using water), by using air pressure. [Means for solving the problem]

[0008] To solve the above problems, the invention described in claim 1 is a dry-type shoe cleaner device for dust and bacteria control that removes and collects dust and bacteria adhering to the soles of work shoes at the entrances and exits of a building by using air pressure to detach them, and is characterized by comprising a sole mounting stand including a through portion on which the sole of a work shoe is placed while wearing the work shoe, and a high-pressure pulsed air spraying member having an attracting member attached to the tip of the nozzle that sprays high-pressure pulsed air toward the sole of the shoe placed on the sole mounting stand, wherein a pulsed air dispersion member is installed on the tip side of the attracting member.

[0009] The invention described in claim 2 is a dust and bacteria control shoe cleaner device in the invention described in claim 1, wherein the pulse air dispersion member has a cross-sectional shape that includes an arc. [Effects of the Invention]

[0010] The dust and bacteria control shoe cleaner device according to the present invention is a dry-type dust and bacteria control shoe cleaner device that removes and collects dust and bacteria adhering to the soles of work shoes at building entrances by detaching them with air pressure (without using water). It comprises a sole placement stand including a pass-through portion on which the sole of the work shoe is placed while wearing it, and a high-pressure pulsed air injection member having an induction member attached to the nozzle tip that sprays high-pressure pulsed air onto the sole of the shoe placed on the sole placement stand.

[0011] The dust and bacteria control shoe cleaner device removes dust and other foreign matter, as well as invisible viruses and bacteria, by using high-pressure pulsed air sprayed from a high-pressure pulsed air injection component to detach (fall from) the sole of the shoe. These foreign matter are then collected inside a dust box (located at the bottom of the dust and bacteria control shoe cleaner device) by a dust collection mechanism (a mechanism that generates airflow to collect dust).

[0012] The high-pressure pulsed air injection member (which has an induction member attached to the nozzle tip) has a pulsed air dispersion member installed on its tip side. The pulsed air dispersion member has the effect of appropriately dispersing the high-pressure pulsed air (that has collided with the pulsed air dispersion member) before it reaches the sole of the shoe. Since the cross-sectional shape of the pulsed air dispersion member includes an arc, by appropriately dispersing the high-pressure pulsed air (that has collided with the pulsed air dispersion member), the high-pressure pulsed air is evenly dispersed without bias and reaches the sole of the shoe. As a result, the ability of the high-pressure pulsed air injected from the high-pressure pulsed air injection member to remove dust and other particles from the sole of the shoe can be improved by 20% to 30%.

[0013] By combining this invention with an air shower room, it is now possible to remove foreign matter such as dust containing harmful substances and invisible viruses and bacteria that adhere to the soles of work shoes. Furthermore, by using it in combination with an air blow gun, it is now possible to clean not only the soles of the shoes but also the area around the shoes (under the feet). Needless to say, even when used alone without combining it with an air shower room, this invention can be used as an excellent dry-type shoe cleaner device for dust and bacteria control. [Brief explanation of the drawing]

[0014] [Figure 1] This is an overall perspective view of the dust and bacteria control shoe cleaner device according to the present invention. [Figure 2] This is a schematic diagram illustrating the principle of a shoe cleaner device for dust and bacteria control. [Figure 3]This is an overall diagram of the high-pressure pulsed air injection member (including the induction member). [Figure 4] This is a diagram illustrating the pulsed air dispersion component. [Figure 5] This is a diagram illustrating the installation state of the high-pressure pulsed air injection component. [Modes for carrying out the invention]

[0015] Hereinafter, one embodiment of the shoe cleaner device 10 for dust and bacteria control according to the present invention will be described in detail with reference to Figures 1 to 5.

[0016] Figure 1 is an overall perspective view of the dust and bacteria control shoe cleaner device 10 according to the present invention. The dust and bacteria control shoe cleaner device 10 is a dry-type dust and bacteria control shoe cleaner device (without using water) that removes and collects foreign matter such as dust and invisible bacteria such as viruses attached to the soles of work shoes by using (high-pressure) air pressure to detach them at entrances to buildings, etc.

[0017] The shoe cleaner device 10 for dust and bacteria control includes a sole support platform 20 (see Figure 1) that includes a pass-through portion for placing the sole of a work boot, and a high-pressure pulsed air spraying member 40, which has a pulsed air dispersion member 50 installed on its nozzle tip and sprays high-pressure pulsed air onto the sole of a shoe placed on the sole support platform 20 (below the sole support platform 20). (The high-pressure pulsed air spraying member 40, to which the pulsed air dispersion member 50 installed on the attracting member 30 is attached will be described later.) When using the dust and bacteria control shoe cleaner device 10, the user should stand upright on the sole support platform 20 with their work boots on, facing in the direction of the arrow (see Figure 1), and operate the dust and bacteria control shoe cleaner device 10.

[0018] Put simply, the principle of the shoe cleaner device 10 for dust and bacteria countermeasures is to inject high-pressure pulsed air from below the shoe sole installation base 20 towards the shoe sole of the work shoe, blowing off the dust and the like adhering to the shoe sole. More specifically, it is to blow off the dust and the like adhering to the shoe sole by means of the so-called "hammering effect" of the high-pressure pulsed air. The dust and the like blown off by the so-called "hammering effect" of the high-pressure pulsed air, as well as bacteria such as invisible viruses, are finally collected in the dust tray 21. Hereinafter, the details of the principle of the shoe cleaner device 10 for dust and bacteria countermeasures will be described.

[0019] Figure 2 is a schematic diagram for explaining the principle of the shoe cleaner device 10 for dust and bacteria countermeasures. As shown in Figure 2, the shoe cleaner device 10 for dust and bacteria countermeasures includes a shoe sole installation base 20 having a through portion on which the shoe sole is placed in a state of wearing work shoes, and a high-pressure pulsed air injection member 40 having an attracting member 30 attached to the nozzle tip for injecting the high-pressure pulsed air sent to the injection dispersion pipe 41 against the shoe sole placed on the shoe sole installation base 20 (the high-pressure pulsed air injection member 40 includes the attracting member 30 on which the pulse air dispersion member 50 is installed). The nozzle tip of the high-pressure pulsed air injection member 40 is inserted to 40% - 50% of the height of the attracting member 3 (see Figure 2).

[0020] The shoe cleaner device 10 for dust and bacteria countermeasures blows off dust and the like adhering to the shoe sole by high-pressure pulse air generated by an air blow system (via the injection dispersion pipe 41) by the high-pressure pulse air injection from the high-pressure pulse air injection member 40. As a feature of the shoe cleaner device 10 for dust and bacteria countermeasures, there is a case where dust and the like adhering to the shoe sole are blown off by the so-called "hammering effect" of the high-pressure pulse air. Hereinafter, the so-called "hammering effect" will be described. The shoe cleaner device 10 for dust and bacteria countermeasures injects air in a high-pressure state from the high-pressure pulse air injection member 40 at regular intervals, that is, it can perform high-pressure pulse injection. Specifically, it can be controlled to repeat a cycle of high-pressure injection for 0.4 seconds (0.37 seconds to 0.43 seconds) → stop injection for 2 to 3 seconds (injection stop) → high-pressure injection for 0.4 seconds (0.37 seconds to 0.43 seconds) → stop. This is the so-called "hammering effect".

[0021] Figure 3 is an overall view of the high-pressure pulse air injection member 40 (including the attracting member 30). The high-pressure pulse air injection member 40 has an attracting member 30 provided with a pulse air dispersion member 50 attached to the nozzle tip (see Fig. 3(b)). Specifically, the nozzle tip of the high-pressure pulse air injection member 40 is inserted up to 40% to 50% of the height of the attracting member 30 (see Fig. 3). Therefore, when the high-pressure pulse air injection member 40 performs high-pressure pulse injection, in accordance with Bernoulli's law, the air around the nozzle of the high-pressure pulse air injection member 40 will be entrained. By entraining the air around the nozzle of the high-pressure pulse air injection member 40, an air flow also occurs from the attracting member 30. Due to the air pressure from the high-pressure pulse air injection member 40, the dust and the like peeled off from the shoe sole by the high-pressure pulse air injection member 40 are collected in the dust tray 21 installed in the shoe cleaner device 10 for dust and bacteria countermeasures. Incidentally, it may also be in a mode where it is captured and collected by an air purification filter installed inside the shoe cleaner device 10 for dust and bacteria countermeasures.

[0022] Figure 4 is a diagram illustrating the pulsed air dispersion member 50. The pulsed air dispersion member 50 (round bar shape) is installed on the tip side of the induction member 30, and its cross-sectional shape includes a circular arc. However, the area where the cross-sectional shape is a circular arc must be the area (lower side) where the high-pressure pulsed air ejected from the high-pressure pulsed air injection member 40 (including the induction member 30) collides.

[0023] The pulse air dispersion member 50 is a round rod shape with a diameter of φ30 mm to φ50 mm, but as shown in Figure 4, the shape of the upper side is not particularly limited as long as it has an arc (a predetermined curved surface) at the point where the high-pressure pulse air ejected from the high-pressure pulse air injection member 40 collides (lower side). Furthermore, from the viewpoint of removing dust and bacteria from the sole of the shoe, it is desirable that the outer diameter of the pulse air dispersion member 50 be 25% to 35% of the inner diameter of the attracting member 30.

[0024] When high-pressure pulsed air ejected from the high-pressure pulsed air injection member 40 collides with the pulsed air dispersion member 50, the direction of the high-pressure pulsed air after the collision changes due to the difference between the angle formed by the curved surface of the arc portion (of the pulsed air dispersion member 50) and the angle of the direction of the high-pressure pulsed air's path (see Figure 4). That is, after the high-pressure pulsed air ejected from the high-pressure pulsed air injection member 40 collides with the pulsed air dispersion member 50, the path of the high-pressure pulsed air changes subtly (the degree of difference between the angle formed by the curved surface of the arc portion and the angle of the direction of the high-pressure pulsed air's path at each minute point on the curved surface). As a result, the high-pressure pulsed air is dispersed appropriately (see Figure 4). When the high-pressure pulsed air is dispersed appropriately, it can cover a wider area of ​​the sole of the shoe. In other words, the high-pressure pulsed air reaches the sole of the shoe (distributed evenly and without bias across the bottom surface of the shoe), and (by reaching the sole uniformly) the ability of the high-pressure pulsed air sprayed from the high-pressure pulsed air injection member 40 to remove dust and other particles from the sole can be improved by 20% to 30%.

[0025] Figure 5 is a diagram illustrating the installation state of the high-pressure pulsed air injection members 40. As shown in Figure 5(a), the multiple high-pressure pulsed air injection members 40 arranged along the injection dispersion pipe 41 are arranged in two rows (four rows in total, left and right) for each shoe sole placed on the shoe sole mounting base 20. The dry shoe cleaner 10 blows away dust and other particles attached to the shoe soles by injecting high-pressure pulsed air from the high-pressure pulsed air injection members 40 (including the induction member 30) via the injection dispersion pipe 41 using high-pressure pulsed air generated by the air blow system described below. The high-pressure pulsed air injection members 40 are installed to blow out high-pressure pulsed air at an angle of 40° to 50° with respect to the shoe soles placed on the shoe sole mounting base 20, that is, with respect to the vertical direction (see Figure 5(b)). The high-pressure pulsed air injection members 40 can also be installed with a variable angle in the horizontal direction (the angle can be varied up to 45° to the left and right of the initial installation direction, with a swing range of 80° to 90°) (see Figure 5(a)).

[0026] The high-pressure pulsed air injection members 40 are installed in two rows (five in each row) on one shoe sole (see Figure 5). Three of the high-pressure pulsed air injection members 40 are installed on the heel side to blow air forward (in the direction a person is facing) at an angle of 40° to 50° to the vertical, while two of the high-pressure pulsed air injection members 40 are installed on the toe side to blow air backward (in the opposite direction) at an angle of 40° to 50° to the vertical (see Figure 5(b)). This installation allows for more efficient injection of high-pressure pulsed air onto the shoe sole (reaching a wider area), thus improving the cleaning effect of the shoe sole. Dust and other particles detached and removed from the shoe sole by the high-pressure pulsed air injection members 40 are carried away by the dust collection mechanism installed in the dust and bacteria control shoe cleaner device 10, accumulated in the dust tray 21 installed at the bottom of the dust and bacteria control shoe cleaner device 10, and finally collected.

[0027] <Effects of shoe cleaner devices for dust and bacteria control> The dust and bacteria control shoe cleaner device 10 according to the present invention sprays high-pressure pulsed air onto the sole of a shoe placed on the sole mounting stand 20. This is achieved by the so-called "beating effect" of the high-pressure pulsed air spraying member 40, which effectively removes dust and other foreign matter, including invisible viruses, adhering to the sole of a work shoe. When used in conjunction with an air blow gun, it is now possible to clean not only the sole of the shoe but also the area around the shoe (under the feet).

[0028] Since the pulse air dispersion member 50 has a cross-sectional shape that includes an arc, it disperses the high-pressure pulse air that collides with the pulse air dispersion member 50 in an appropriate manner, so that the high-pressure pulse air reaches the sole of the shoe evenly and without bias. As a result, the ability of the high-pressure pulse air sprayed from the high-pressure pulse air injection member 40 to remove dust and other particles from the sole of the shoe can be improved by 20% to 30%.

[0029] The high-pressure pulsed air injection member 40 is installed to blow high-pressure pulsed air at an angle of 40° to 50° with respect to the sole of the shoe placed on the sole mounting base 20, that is, with respect to the vertical direction. Furthermore, it can be installed with a variable angle in the horizontal direction. As a result, high-pressure pulsed air can be efficiently injected onto the sole of the shoe (because the high-pressure pulsed air reaches a wider area), improving the cleaning effect of the sole of the shoe, and the cleaning effect of the sole of the shoe can be freely adjusted according to the situation.

[0030] By installing the dust and bacteria control shoe cleaner device 10 according to the present invention at the bottom of an air shower room, it is possible to remove dust containing harmful substances that adhere not only to work clothes but also to the soles of work shoes. When a user enters an air shower room equipped with the dust and bacteria control shoe cleaner device 10, the (pulsed) air spray from the air shower room and the high-pressure pulsed air spray from the dust and bacteria control shoe cleaner device 10 begin simultaneously. Air is sprayed from the nozzle on the air shower room side for 20 seconds, and the high-pressure pulsed air from the dust and bacteria control shoe cleaner device 10 is sprayed for 10 seconds. Therefore, after the spraying of high-pressure pulsed air from the dust and bacteria control shoe cleaner device 10 stops, air is sprayed from the nozzle on the air shower room side for 10 seconds.

[0031] While an air shower room equipped with the dust and bacteria control shoe cleaner device 10 according to the present invention can remove harmful substances (such as harmful fine dust including dioxins) that adhere to workers' clothing during work at waste disposal sites, powder processing plants, etc., it had the problem that it could not remove harmful substances that adhered to the soles of workers' work shoes. However, by installing the dust and bacteria control shoe cleaner device 10, it has become possible to remove dust containing harmful substances that adhere to the soles of work shoes. Furthermore, it has also become possible to take measures against bacteria such as avian influenza.

[0032] <Examples of modifications to shoe cleaner devices for dust and bacteria control> The shoe cleaner device for dust and bacteria control according to the present invention is not limited in any way to the embodiments described above, and the configuration of the shoe sole mounting base, attracting member, high-pressure pulsed air injection member, pulsed air dispersion member, etc. can be appropriately changed as necessary without departing from the spirit of the present invention. [Industrial applicability]

[0033] As described above, the dust and bacteria control shoe cleaner device according to the present invention exhibits excellent effects and can therefore be suitably used as a dust and bacteria control shoe cleaner device that removes foreign matter such as dust adhering to the soles of shoes by dry detachment using air pressure at entrances to buildings, etc. It can also be suitably used as an air shower room equipped with the dust and bacteria control shoe cleaner device. [Explanation of Symbols]

[0034] 10. Dust and Bacteria Control Shoe Cleaner Device 20...Sole installation stand 21. Dust Tray 30. Attraction components 40. High-pressure pulsed air injection component 41. Injection branch pipe 50. Pulse air dispersion component

Claims

1. A dry-type shoe cleaner device for dust and bacteria control that removes and collects dust and bacteria attached to the soles of work shoes at building entrances by using air pressure to detach them, A shoe sole support platform including a perforated section for placing the sole while wearing work boots, The system includes a high-pressure pulsed air injection member, which has an induction member attached to the tip of the nozzle, for injecting high-pressure pulsed air toward the sole of a shoe placed on the sole mounting base, A shoe cleaner device for dust and bacteria control, characterized in that a pulsed air dispersion member is installed on the tip side of the aforementioned attracting member.

2. The shoe cleaner device for dust and bacteria control according to claim 1, characterized in that the pulsed air dispersion member has a cross-sectional shape that includes an arc.

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