Dry shoe cleaner

Abstract

To provide a dry shoe cleaner suitable for measures against harmful substances stuck to soles of workers' working shoes during work in waste disposal plants, powder factories, etc., the measures of removing foreign substances such as dust stuck to the soles of the working shoes, and even invisible viruses, etc. by peeling them off by air pressure at entrances / exits of poultry farms, etc.SOLUTION: A dry shoe cleaner 10 is configured for removing and collecting foreign substances such as dust and invisible viruses attached to soles of work shoes by peeling them off by air pressure at entrances / exits of buildings, etc. The dry shoe cleaner 10 comprises a shoe sole placement stand 20 including a penetration part on which a shoe sole is placed with the work shoe on, and a high-pressure pulse air injection member 40 for injecting high-pressure pulse air to the shoe sole placed on the shoe sole placement stand 20 and having an attraction member 30 attached to a nozzle tip end.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a dry shoe cleaner that removes foreign matter such as dust adhering to the soles of shoes by peeling it off (by air pressure) at the entrances and exits of buildings, etc. [Background technology]

[0002] Appropriate measures are required to prevent harmful substances (such as fine, harmful dust particles such as dioxins) adhering to work clothes (worn by workers) from scattering into the outdoor air during work (for example, asbestos removal work) at waste disposal plants, powder factories, etc., and (in response to this requirement) air shower rooms that use powerful air to simultaneously blow away all dust, germs, etc. adhering to work clothes have become widespread. In the air shower room, jet air blows from both sides and the ceiling, blowing away harmful substances (such as fine, harmful dust particles such as dioxins) adhering to the work clothes, and they are captured by the pre-filter installed at the intake port at the bottom of the air shower room and the main filter inside.

[0003] Air shower rooms can remove harmful substances (harmful fine dust particles such as dioxins) that adhere to the clothes of workers working in waste disposal plants, powder factories, etc., but they cannot remove harmful substances (including viruses, etc.) that adhere to the soles of workers' work shoes. Furthermore, in recent years, there have been serious damages caused by avian influenza at poultry farms, etc. The applicants have undertaken intensive development in light of this current situation (the need to remove dust particles, etc. that adhere to the soles of work shoes), and have arrived at the present invention, which can remove foreign objects such as dust particles and invisible viruses that adhere to the soles of work shoes.

[0004] Patent Document 1 discloses a shoe sole cleaning device (Patent Document 1: Title of the Invention) that aims to "maximize the flow speed and volume of air colliding with the sole of the shoe by concentrating the suction area on a specified area without dispersing it, thereby highly efficiently removing dust (Abstract: Problem)," and discloses a shoe sole cleaning device that "has two flexible abutment blades with thin tips, an air intake housing that holds the two abutment blades in parallel and has an air intake port formed between the two abutment blades and a connection port that communicates with the air intake port, and a floor-like stand on which the abutment blades are positioned so that they protrude upward. Also, the stand is provided with a bathtub that stores enough water to soak the soles of the shoes, and is equipped with a brush-like cleaning tool that comes into contact with the sole of the shoe (Abstract: Solution)." [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2010-22652 A Summary of the Invention [Problem to be solved by the invention]

[0006] The shoe sole cleaning device in Patent Document 1 (Patent Document 1: Title of the Invention) is a wet type shoe sole cleaning device as described in claim 2, which "stores water in an amount sufficient to soak the shoe soles, and..." In the case of use as in the present invention, i.e., removing harmful substances that have adhered to the soles of work shoes during work at a garbage disposal site, a powder factory, etc., and collecting and treating the adhering matter (harmful substances), the shoe sole cleaning device in Patent Document 1 (Patent Document 1: Title of the Invention) is not a dry type, and therefore requires a separate wastewater treatment process to treat wastewater containing harmful substances, which is undesirable.

[0007] To provide a dry shoe cleaner suited to measures against harmful substances, which removes and removes foreign matter such as dust adhering to the soles of workers' work shoes by using air pressure at the entrance and exit of a factory while working in a garbage disposal facility, a powder factory, etc., and further removes and removes invisible viruses by using air pressure at the entrance and exit of a poultry farm, etc. [Means for solving the problem]

[0008] In order to solve the above problems, the invention described in claim 1 is a dry type shoe cleaner that removes and collects foreign matter such as dust and invisible viruses that adhere to the soles of work shoes at entrances and exits of buildings, etc., by peeling them off using air pressure, and is characterized in that the dry type shoe cleaner is equipped with a sole placement stand including a through-hole on which the sole of the work shoes is placed while the work shoes are being worn, and a high-pressure pulse air injection member having an attraction member attached to the nozzle tip, which injects high-pressure pulse air at the soles placed on the sole placement stand.

[0009] The invention described in claim 2 is the dry type shoe cleaner according to claim 1, characterized in that the shoe sole placement platform is made of rectangular flat plate members except for the vertical and horizontal areas where the sole is placed, and the horizontal areas where the sole is placed are made of round bar-shaped members, and a step of 3 mm to 7 mm is provided between the rectangular flat plate members and the round bar-shaped members. Note that in this specification, the vertical direction refers to the direction that a person faces when standing on the shoe sole placement platform of the dry type shoe cleaner.

[0010] The invention described in claim 3 is the invention described in claim 1 or 2, characterized in that the high-pressure pulse air ejection member is installed so as to eject high-pressure pulse air toward the sole placed on the sole placement stand, i.e., at an angle of 40° to 50° with respect to the vertical direction, and further, is a dry shoe cleaner that can be installed at a variable angle with respect to the horizontal direction. Note that in this specification, the horizontal direction means horizontal with respect to the earth (ground). Effect of the Invention

[0011] The present invention is a dry-type shoe cleaner that removes and collects foreign matter such as dust and invisible viruses that adhere to the soles of work shoes at entrances and exits of buildings, etc., by peeling them off with air pressure. It is equipped with a sole placement stand that includes a through-hole on which the sole of the work shoes is placed while the work shoes are being worn, and a high-pressure pulse air injection member with an attraction member attached to the nozzle tip, which injects high-pressure pulse air at the soles placed on the sole placement stand.

[0012] Furthermore, it is equipped with a dust collection mechanism (a mechanism that generates and controls air circulation inside the dry shoe cleaner) for collecting foreign matter such as dust and invisible viruses that are removed by peeling them off (falling) from the soles of shoes using a high-pressure pulse air injection member, by capturing them in a dust tray installed in the dry shoe cleaner, or inside an air purifying filter installed in the dry shoe cleaner.

[0013] The shoe placement area of ​​the shoe sole placement stand is composed of a rectangular flat plate member in the vertical direction and a round bar member in the horizontal direction, with a 3mm to 7mm step between the rectangular flat plate member and the round bar member (the rectangular flat plate member is at a higher position). With this configuration, turbulence is generated (the 3mm to 7mm step is due to a space being formed between the work shoe) by high pressure pulse air from the high pressure pulse air injection member (which blows out high pressure pulse air) toward the sole placed on the shoe sole placement stand. This turbulence can increase the effect of peeling off foreign matter such as dust and invisible viruses attached to the sole of the work shoe.

[0014] The high-pressure pulsed air ejection member is installed at an angle rather than perpendicularly when ejecting high-pressure pulsed air onto the soles placed on the sole placement stand. That is, it is installed so that the high-pressure pulsed air is ejected at an angle of 40° to 50° from the vertical direction, and furthermore, it can be installed at a variable angle from the horizontal direction. Therefore, foreign matter such as dust and invisible viruses adhering to the soles of work shoes can be peeled off more efficiently.

[0015] The dry shoe cleaner according to the present invention has been able to solve the following problems. That is, the air shower room can remove harmful substances (harmful fine dust such as dioxins) that adhere to the clothes of workers while working in waste disposal plants, powder factories, etc., but it cannot remove harmful substances that adhere to the soles of workers' work shoes. However, by combining the present invention with an air shower room, it has become possible to remove foreign matter such as dust containing harmful substances that adhere to the soles of work shoes, as well as invisible viruses. By using it in combination with an air blow gun, it has become possible to clean not only the soles of shoes, but also the surroundings of the shoes (feet). It goes without saying that the present invention can be used as an excellent dry shoe cleaner even when used alone without being combined with an air shower room. [Brief description of the drawings]

[0016] [Figure 1] 1 is an overall perspective view of a dry-type shoe cleaner according to the present invention; [Diagram 2] 2 is an overall top view of the shoe sole mounting base and a partially enlarged view thereof. FIG. [Diagram 3] 1 is a schematic diagram for explaining the principle of a dry-type shoe cleaner. [Figure 4] FIG. 2 is an overall view of a high-pressure pulse air ejection member (including an attraction member). [Diagram 5] 13 is a diagram for explaining the installation state of a high-pressure pulse air ejection member. FIG. [Figure 6] FIG. 2 is a diagram for explaining an air blowing system in a dry-type shoe cleaner. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, one embodiment of a dry-type shoe cleaner 10 according to the present invention will be described in detail with reference to Figs.

[0018] FIG. 1 is an overall perspective view of a dry shoe cleaner 10 according to the present invention. The shoe cleaner 10 is a dry shoe cleaner that removes and collects foreign matter such as dust and invisible viruses attached to the soles of work shoes by peeling them off with air pressure at the entrance of a building or the like. The shoe cleaner 10 is equipped with a sole placement stand 20 (see FIG. 1) including a through-hole on which the sole of the work shoes is placed while the work shoes are being worn, and a high-pressure pulse air injection member 40 (below the sole placement stand 20) to which an attraction member 30 is attached at the nozzle tip, which injects high-pressure pulse air to the sole placed on the sole placement stand 20. (The high-pressure pulse air injection member 40 to which the attraction member 30 is attached will be described later.) When using the dry shoe cleaner 10, the user is operated (the dry shoe cleaner 10) while standing upright on the sole placement stand 20 facing in the direction of the arrow (see FIG. 1) while wearing the work shoes.

[0019] 2A is an overall top view of the shoe sole mounting base 20 of the dry-type shoe cleaner 10, and FIG. 2B is a partially enlarged view thereof. The partially enlarged view is a detailed view for explaining the installation state of the rectangular flat plate member 60 and the round bar member 70 on the shoe sole mounting base 20.

[0020] The sole installation location of the sole installation stand 20 (see sole mark in FIG. 2(a)) is composed of a rectangular flat plate member 60 installed vertically (forward of a person standing upright on the sole installation stand 20: see the arrow in FIG. 1) and horizontally on the sole installation stand 20 other than the sole installation location (mainly the outer casing of the sole installation stand 20), and a round bar member 70 installed horizontally at the sole installation location of the sole installation stand 20 (where a person stands while wearing work shoes), and there is a step of 3 mm to 7 mm between the rectangular flat plate member 60 and the round bar member 70 (see FIG. 2(b)). The distance between adjacent rectangular flat plate members 60 is designed not to be larger than the width of the sole.

[0021] A step of 3 mm to 7 mm is provided between the rectangular flat member 60 and the round bar-shaped member 70, and the distance between adjacent rectangular flat members 60 is designed to be shorter than the width of the sole of the shoe. As a result, when the dry shoe cleaner 10 is in operation, a gap of 3 mm to 7 mm is created between the sole of the shoe and the round bar-shaped member 70, so that the high-pressure air sprayed from the high-pressure pulse air spraying member 40 becomes turbulent.

[0022] <Shoe cleaner principle> The principle of the dry shoe cleaner 10 is simply to spray high-pressure air from below the shoe sole placement stand 20 toward the soles of work shoes to blow away dust and other particles adhering to the soles. More specifically, the so-called "beating effect" of the high-pressure pulsed air blows away dust and other particles adhering to the soles. The dust and other particles, as well as invisible viruses, blown away by the so-called "beating effect" of the high-pressure pulsed air, are ultimately captured in a dust tray or an air cleaning filter. The principle of the dry shoe cleaner 10 will be described in detail below.

[0023] Fig. 3 is a schematic diagram for explaining the principle of the dry-type shoe cleaner 10. As shown in Fig. 3, the dry-type shoe cleaner 10 is provided with a sole placement stand 20 including a through-hole on which the sole of the work shoe is placed when the work shoe is worn, and a high-pressure pulse air injection member 40 having an induction member 30 attached to a nozzle tip thereof, which injects high-pressure pulse air sent to an injection branch pipe 41 toward the sole placed on the sole placement stand 20 (the high-pressure pulse air injection member 40 includes the induction member 30). The nozzle tip of the high-pressure pulse air injection member 40 is inserted to 40% to 50% of the height of the induction member 30 (see Fig. 3).

[0024] (To repeat) a step of 3 mm to 7 mm is provided between the rectangular flat plate members 60 and the round bar-shaped members 70, and the distance between adjacent rectangular flat plate members 60 is designed to be shorter than the width of the sole of a shoe. With this configuration, a gap of 3 mm to 7 mm (see FIG. 3) is created between the sole of the shoe and the round bar-shaped members 70 when the dry shoe cleaner 10 is in operation, which is designed to create a turbulent flow of high-pressure air sprayed from the high-pressure pulse air spraying member 40.

[0025] The shoe cleaner 10 blows off dust and the like adhering to the sole of a shoe by jetting high-pressure (pulsed) air generated by an air blowing system (through a jet branch pipe 41) from the high-pressure pulsed air jetting member 40. One of the features of the shoe cleaner 10 is that it blows off dust and the like adhering to the sole of a shoe by the so-called "beating effect" of the high-pressure pulsed air. The so-called "beating effect" will be explained below. The shoe cleaner 10 jets high-pressure air from the high-pressure pulsed air jetting member 40 at regular intervals, that is, it is capable of high-pressure pulse jetting. Specifically, it can be controlled to repeat a cycle of high-pressure jet for 0.4 seconds (0.37 seconds to 0.43 seconds) → jetting stopped for 2 to 3 seconds (jet stop) → high-pressure jet for 0.4 seconds (0.37 seconds to 0.43 seconds) → stop. This is the so-called "beating effect".

[0026] FIG. 4 is an overall view of the high-pressure pulse air injection member 40 (including the attraction member 30). The attraction member 30 is attached to the nozzle tip of the high-pressure pulse air injection member 40. In detail, the nozzle tip of the high-pressure pulse air injection member 40 is inserted to 40% to 50% of the height of the attraction member 30 (see FIG. 4). Therefore, when the high-pressure pulse air injection member 40 injects high-pressure pulses, the air around the nozzle of the high-pressure pulse air injection member 40 is sucked in according to Bernoulli's law. By sucking in the air around the nozzle of the high-pressure pulse air injection member 40, an air flow is also generated from the attraction member 30. Dust and the like peeled off from the sole by the high-pressure pulse air injection member 40 due to the air pressure from the high-pressure pulse air injection member 40 is captured and collected and separated by a dust tray installed in the dry shoe cleaner 10 or an air purification filter installed inside the air purification filter.

[0027] FIG. 5 is a diagram for explaining the installation state of the high-pressure pulse air injection member 40. As shown in FIG. 5(a), the multiple high-pressure pulse air injection members 40 arranged along the injection branch pipe 41 are arranged in two rows (four rows in total) for each sole placed on the sole installation stand 20. The dry-type shoe cleaner 10 blows away dust and the like attached to the sole by injecting high-pressure pulse air generated by an air blowing system described below (through the injection branch pipe 41) from the high-pressure pulse air injection member 40 (including the attraction member 30). The high-pressure pulse air injection member 40 is installed so as to blow out high-pressure pulse air toward the sole placed on the sole installation stand 20, that is, at an angle of 40° to 50° with respect to the vertical direction (see FIG. 5(b)). The high-pressure pulse air injection member 40 can also be installed at an angle variable with respect to the horizontal direction (angle variable up to 45° left and right with respect to the initial installation direction, with a swing range of 80° to 90°) (see FIG. 5(a)).

[0028] The high-pressure pulse air injection members 40 are installed in two rows (five per row) on one shoe sole (see FIG. 5), and three (high-pressure pulse air injection members 40) from the heel side are installed so that they blow forward (in the direction the person is facing) at an angle of 40° to 50° with respect to the vertical direction, and two (high-pressure pulse air injection members 40) from the toe side are installed so that they blow backward (in the opposite direction) at an angle of 40° to 50° with respect to the vertical direction (see FIG. 5(b)). By installing them in this way, the high-pressure pulse air can be efficiently injected to the shoe sole (since the high-pressure pulse air reaches a wider range), so the cleaning effect of the shoe sole is improved. The dust and the like peeled off and removed from the shoe sole by the high-pressure pulse air injection members 40 is washed away by a dust collection mechanism installed in the dry shoe cleaner 10 and accumulated in a dust tray installed in the dry shoe cleaner 10, or captured in an air cleaning filter installed in the dry shoe cleaner 10, and finally collected and separated. <Air blow system>

[0029] The air blowing system of the dry-type shoe cleaner 10 will now be described. An air compressor, an air combination, a receiver tank, etc. are used as devices (devices constituting the system) for supplying high-pressure air to the high-pressure pulse air ejection member 40 (which ejects high-pressure pulse air) toward the soles placed on the sole placement stand 20. The air blowing system of the shoe cleaner 10 operates the air compressor to generate compressed air, which then generates instrument air (clean air with a constant pressure and no impurities).

[0030] An air filter for removing drain (moisture) and a regulator (pressure reducing valve) are installed as an air combination installed in the middle of the air circuit. Furthermore, a receiver tank is installed to stabilize the amount of air supplied to the shoe cleaner 10, thereby making the nozzle air pressure (of the high-pressure pulse air spraying member 40) uniform. By operating these devices (air blowing system), the shoe cleaner 10 can obtain a spray air force of 25 [m / s] to 27 [m / s].

[0031] 6 is a diagram for explaining the air blow system in the dry-type shoe cleaner 10. When high-pressure pulse air is injected from the high-pressure pulse air injection member 40, it is possible to control so that high-pressure air is injected alternately (with a time difference) from the A port and the B port of the solenoid bulk. Specifically, a cycle of high-pressure injection for 0.4 seconds (0.37 seconds to 0.43 seconds) → injection is stopped for 2 to 3 seconds (injection stop) → high-pressure injection for 0.4 seconds (0.37 seconds to 0.43 seconds) → stop is repeated from the A port. During the 2 to 3 seconds when injection from the A port is stopped, a cycle of high-pressure injection for 0.4 seconds (0.37 seconds to 0.43 seconds) → injection is stopped for 2 to 3 seconds (injection stop) → high-pressure injection for 0.4 seconds (0.37 seconds to 0.43 seconds) → stop is repeated from the B port.

[0032] In other words, high-pressure pulse air is sprayed alternately onto the right half (A port or B port) and the left half (B port or A port) of the shoe sole. The air blow system is designed to allow time adjustment (spray time) according to the amount of dust to be removed.

[0033] <Shoe cleaner effects> The dry shoe cleaner 10 of the present invention sprays high-pressure pulsed air toward the soles of shoes placed on the sole placement stand 20, i.e., the high-pressure pulsed air from the high-pressure pulsed air spraying member 40 creates a so-called "beating effect," which makes it possible to (efficiently) remove foreign matter such as dust and invisible viruses adhering to the soles of work shoes by peeling them off. By using it in combination with an air blow gun, it is now possible to clean not only the soles of shoes, but also the surroundings of the shoes (under the feet).

[0034] Furthermore, since the attraction member 30 is attached to the nozzle tip of the high-pressure pulse air injection member 40, the air around the nozzle (of the high-pressure pulse air injection member 40) is drawn in when the high-pressure pulse air injection member 40 is injected. By drawing in the air around the nozzle, an air flow is also generated from the attraction member 30 (Bernoulli's law). Due to the air flow generated from the attraction member 30, the dust detached from the shoe sole by the high-pressure pulse air injection member 40 is blown toward a dust tray or an air purifying filter and is finally collected and separated.

[0035] The shoe placement area of ​​the shoe sole placement stand is composed of a rectangular flat plate member 50 in the vertical and horizontal directions where the sole is not placed, and a round bar member 60 in the horizontal direction where the sole is placed, and a step of 3 mm to 7 mm (the rectangular flat plate member is at a higher position) is provided between the rectangular flat plate member 50 and the round bar member 60. With this configuration, a turbulent flow is generated (the step of 3 mm to 7 mm is caused by a space being formed between the work shoe) by the high pressure pulse air from the high pressure pulse air ejection member 40 (which blows out high pressure pulse air) toward the sole placed on the shoe sole placement stand 20. The turbulent flow further makes it possible to efficiently remove and collect foreign matter such as dust attached to the work shoe sole, and even invisible viruses, etc.

[0036] The high-pressure pulse air jetting member 40 is installed so as to blow out high-pressure pulse air to the soles placed on the sole placement stand 20, that is, at an angle of 40° to 50° from the vertical direction, and furthermore, can be installed at a variable angle from the horizontal direction. Therefore, the high-pressure pulse air can be efficiently jetted to the soles (as the high-pressure pulse air reaches a wider range), improving the effectiveness of cleaning the soles, and making it possible to freely adjust the effectiveness of cleaning the soles according to the situation.

[0037] By installing the dry shoe cleaner 10 according to the present invention under an air shower room, it is possible to remove dust containing harmful substances that is attached not only to work clothes but also to the soles of work shoes. The operating state of an air shower room in which the dry shoe cleaner 10 is installed is that when a user enters the air shower room, the (pulsed) air jet from the air shower room and the high-pressure pulsed air jet from the dry shoe cleaner 10 start simultaneously. Jets are emitted from the nozzle on the air shower room side for 20 seconds, and the high-pressure pulsed air from the dry shoe cleaner 10 is jetted for 10 seconds. Therefore, after the jetting of high-pressure pulsed air from the shoe cleaner 10 stops, jets are emitted from the nozzle on the air shower room side for 10 seconds.

[0038] An air shower room equipped with the shoe cleaner 10 of the present invention can remove harmful substances (harmful fine dust particles such as dioxins) that adhere to the clothing of workers working in waste disposal sites, powder factories, etc., but it cannot remove harmful substances that adhere to the soles of the workers' work shoes. However, by installing the shoe cleaner 10, it is now possible to remove dust particles containing harmful substances that adhere to the soles of the workers' work shoes.

[0039] <Example of changing dry shoe cleaner> The dry-type shoe cleaner of the present invention is not limited to the aspects of the above-described embodiments, and the configurations of the shoe sole mounting base, attraction member, high-pressure pulse air injection member, injection branch pipe, rectangular flat member, round rod-shaped member, etc. can be appropriately modified as necessary without departing from the spirit of the present invention. [Industrial Applicability]

[0040] Since the dry-type shoe cleaner of the present invention has the excellent effects as described above, it can be suitably used as a dry-type shoe cleaner that removes foreign matter such as dust adhering to the soles of shoes by dryly peeling it off using air pressure at the entrances and exits of buildings, etc., and can also be suitably used as an air shower room in which a dry-type shoe cleaner is installed. [Explanation of symbols]

[0041] 10. Dry shoe cleaner 20... Shoe sole installation stand 30...Attraction member 40 High pressure pulse air injection parts 41...Injection branch pipe 50...Rectangular flat plate member 60...Round bar-shaped member

Claims

1. This is a dry shoe cleaner that removes and collects foreign matter such as dust and invisible viruses attached to the soles of work shoes at the entrances and exits of buildings, etc. by peeling them off with air pressure, a shoe sole installation stand including a through-hole on which the sole of the work shoe is placed while the work shoe is being worn; The dry shoe cleaner is characterized by comprising a high-pressure pulse air injection member having an attraction member attached to the nozzle tip, which injects high-pressure pulse air onto the soles placed on the shoe sole installation stand.

2. The dry shoe cleaner according to claim 1, characterized in that the shoe sole mounting base is composed of rectangular flat plate members except for the vertical and horizontal shoe sole mounting areas, and the horizontal shoe sole mounting areas are composed of round bar-shaped members, and a step of 3 mm to 7 mm is provided between the rectangular flat plate members and the round bar-shaped members.

3. The dry shoe cleaner according to claim 1 or 2, characterized in that the high-pressure pulse air ejection member is installed so as to eject high-pressure pulse air toward the sole placed on the sole placement stand, i.e., at an angle of 40° to 50° with respect to the vertical direction, and further, can be installed at an angle that can be changed with respect to the horizontal direction.

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