JP2022103628A - Radiation device for handrail - Google Patents

Abstract

To provide a sterilizer which allows a user to grip a handrail of an escalator etc. safely.SOLUTION: A radiation device sterilizes a handrail (1) of a man conveyor. Ultraviolet light radiation means (20) is installed in an area (6) which continues along a moving direction of the handrail (1) in a manner that both ends as seen in a width direction are located at the outer side of a width of the handrail (1). The radiation device can directly radiate ultraviolet light to the side surface outer periphery side (3) of the handrail (1) and carry out sterilization of the handrail (1) efficiently and sufficiently.SELECTED DRAWING: Figure 1

Description

The present invention relates to an irradiation device for a handrail of a man conveyor.

When riding on a man conveyor such as an escalator or a moving walkway, the number of passengers who do not hold the handrail is increasing due to fear of infection with viruses and the like. However, when getting on and off an escalator, colliding with a walking passenger, or making an emergency stop, the person may fall and get injured because he / she does not hold the handrail.

Japanese Patent Publication No. 2007-520402 International Publication No. 2016-148389 Japanese Unexamined Patent Publication No. 2006-193319

It is necessary to sterilize the handrail so that the handrail such as an escalator can be gripped with confidence. Devices for sterilizing handrails have been reported, but none of them is sufficient (Patent Documents 1 to 3).
Therefore, an object of the present invention is to provide a sterilizer that can grip a handrail such as an escalator with peace of mind.

As a result of diligent research on a sterilizer that can grip a handrail such as an escalator with peace of mind, the present inventor surprisingly installed an ultraviolet irradiation means of the sterilizer at a specific position of a folded portion of the escalator or the like. I found that I can grip handrails such as escalators with confidence.
The present invention is based on these findings.
Therefore, the present invention
[1] An irradiation device for sterilizing the handrail of a man conveyor, wherein both ends of the ultraviolet irradiation means are located outside the width of the handrail and are continuous along the moving direction of the handrail. Irradiation device, characterized by being installed in an area,
[2] The ultraviolet irradiation means has at least a part of ultraviolet radiation portions continuously arranged on a normal line with respect to the surface between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail, according to [1]. Irradiation device,
[3] The irradiation device according to [1] or [2], wherein the feeding line for supplying electric power to the ultraviolet irradiation means is routed in a direction opposite to or perpendicular to the moving direction of the handrail. ,
[4] The irradiation device according to any one of [1] to [3], wherein the ultraviolet irradiation unit is an LED element continuously arranged facing the surface of the handrail.
[5] The irradiation device according to any one of [1] to [3], wherein the ultraviolet radiation unit is a discharge lamp in which a discharge container continuously extends so as to face the surface of the handrail.
[6] The discharge container is composed of a straight pipe portion along the moving direction of the handrail, and at least a part of the straight pipe portion is arranged inside the width of the handrail in [5]. The irradiation device described,
[7] The discharge container is composed of a straight pipe portion along the moving direction of the handrail and a curved pipe portion along the width direction of the handrail, and at least a part of the straight pipe portion is the handrail. The irradiation device according to [5], which is arranged outside the width of the handrail, and the length of the curved tube portion is longer than the width of the handrail.
[8] The irradiation device according to any one of [5] to [7], wherein the discharge container has a shape bent along the surface of the handrail.
[9] The ultraviolet emitting unit forms an excimer lamp in which a rare gas or a mixed gas of a rare gas and a halogen gas is sealed in a discharge container, a mercury lamp in which a rare gas and mercury are enclosed in a discharge container, and a phosphor film in the discharge container. The irradiation device according to any one of [5] to [8], which is a lamp selected from the group consisting of fluorescent UV lamps formed in.
[10] The irradiation device according to any one of [1] to [9], wherein the ultraviolet irradiation means is installed so that the irradiation distance from the surface of the handrail is different.
[11] The surface between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail is directly irradiated with the ultraviolet rays radiated from the ultraviolet irradiation means, and is between the inner peripheral side of the side surface of the handrail and the inner peripheral surface. The irradiation device according to any one of [1] to [10], wherein the surface is irradiated by reflecting the ultraviolet rays emitted from the ultraviolet irradiation means.
[12] The irradiation device according to [11], wherein the ultraviolet rays radiated from the ultraviolet irradiation means are non-uniformly applied to the continuous surfaces of the outer peripheral surface, the side surface, and the inner peripheral surface of the handrail.
[13] The ultraviolet irradiation means is installed in a folded portion of the handrail, and is installed in a part or all of a continuous region between the height of the exit portion of the handrail and the height of the horizontally moving portion. The irradiation device according to any one of [1] to [12].
[14] The upper end of the housing of the irradiation device is lower than the height of the horizontally moving portion or the height of the horizontally moving portion, and is located within 1/3 of the height of the folded portion of the handrail, [1] to The length of the region along the moving direction in which the irradiation device according to any one of [13] and [15] the ultraviolet irradiation means are installed is in the range of 100 to 800 mm, and the moving speed of the handrail. Is in the range of 10 to 50 m / min, the surface of the handrail is irradiated with ultraviolet rays so that the illuminance is 1.4 mW / cm ² or more and the irradiation amount is 1.1 mJ / cm ² or more. , The irradiation device according to any one of [1] to [13].
Regarding.

According to the sterilizer of the present invention, passengers can safely hold a handrail such as an escalator. In addition, the ultraviolet irradiation time (irradiation amount) required for sterilization can be sufficiently secured. Further, although it is a compact irradiation device that can be installed at the entrance of an escalator or the like, a sufficient bactericidal effect can be obtained. Further, according to the sterilizing device of the present invention, it is possible to visually recognize that the passenger is a sterilized handrail.

A schematic view of the positional relationship between the ultraviolet irradiation means and the handrail in the irradiation device of the present invention as viewed from the upper cross section (A), the front surface (B) and the side surface (C), and the upper sectional view of the irradiation device including the housing. (D). It is a figure which showed the positional relationship between the ultraviolet irradiation means of a conventional sterilizer and a handrail. It is a schematic diagram seen from the upper cross section (A) and the front surface (B) when two straight tube type ultraviolet lamps (ultraviolet radiating part) are used as ultraviolet irradiation means. It is a schematic diagram seen from the upper cross section (A) and the front surface (B) when four straight tube type ultraviolet lamps (ultraviolet radiating part) are used as ultraviolet irradiation means. It is a schematic view which looked at the upper cross section (A) and the front surface (B) when the U-shaped tube type ultraviolet lamp (ultraviolet radiating part) was used as an ultraviolet irradiation means. It is a schematic view which looked at the upper cross section (A) and the front surface (B) when the U-shaped tube type ultraviolet lamp (ultraviolet radiating part) was used as an ultraviolet irradiation means. It is a schematic diagram of the side surface when the LED element is used as an ultraviolet irradiation means.

The irradiation device of the present invention is an irradiation device that sterilizes the handrail of a man conveyor, and the ultraviolet irradiation means has both ends in the width direction outside the width of the handrail and is located in the moving direction of the handrail. Installed in a continuous area along. In the conventional irradiation device, as shown in FIG. 2A, both ends of the ultraviolet irradiation means in the width direction are located inside the width of the handrail.

Examples of the man conveyor include, but are not limited to, an escalator or a moving walkway (moving walkway).
The ultraviolet irradiation means is a means for irradiating a handrail with ultraviolet rays to kill pathogens such as bacteria or viruses. Specifically, as long as it can irradiate ultraviolet rays, it is not particularly limited, but includes an ultraviolet emitting part such as an ultraviolet lamp described later.
The width direction of the ultraviolet irradiation means means the lateral direction of the "region 6 in which the ultraviolet irradiation means is installed" shown by the dotted line in FIG. 1 (A).

Hereinafter, specific embodiments of the ultraviolet irradiation means in the width direction will be described with reference to FIGS. 3 to 6.
In the case of an ultraviolet irradiation means in which two ultraviolet lamps (ultraviolet emitting part) of a straight tube type 11 are installed along the moving direction of the handrail 1 as shown in FIG. 3, the entire area including the two ultraviolet lamps is included. Is the area of the ultraviolet irradiation means. In this embodiment, three or more ultraviolet lamps can also be used.
In the case of an ultraviolet irradiation means in which four ultraviolet lamps (ultraviolet radiating parts) of a straight tube type 11 are installed perpendicular to the moving direction of the handrail 1 as shown in FIG. 4, all areas including the four ultraviolet lamps are included. Is the area of the ultraviolet irradiation means. In this embodiment, 1 to 3 or 5 or more ultraviolet lamps can also be used.
As shown in FIG. 5, in the case of an ultraviolet irradiation means in which the straight tube portion of the U-shaped tube type 12 ultraviolet lamp (ultraviolet radiation portion) is installed along the moving direction of the handrail 1, the area including the straight tube portion and the curved tube portion. Is the area of the ultraviolet irradiation means.
In the case of an ultraviolet irradiation means in which a U-shaped tube type 15 ultraviolet lamp is installed so that the U-shape surrounds the circumference of the handrail 1 as shown in FIG. 6, all areas of the upper and lower U-shaped portions are covered. , The area of ultraviolet irradiation means.
The aspect of the ultraviolet irradiation means of the present invention is not limited to the aspect of FIGS. 3 to 6 as long as both ends of the ultraviolet irradiation means in the width direction are located outside the width of the handrail.
As shown in FIG. 1D, the irradiation device of the present invention has a housing 21 that covers the handrail 1 and the ultraviolet irradiation means 20. The opening 22 has a size that does not hinder the movement of the handrail 1 and does not leak the ultraviolet rays radiated from the ultraviolet irradiation means 20.

In the irradiation means of the present invention, both ends in the width direction of the ultraviolet irradiation means are located outside the width of the handrail. The width direction of the ultraviolet irradiation means means the width direction of the handrail perpendicular to the moving direction of the handrail.
By locating both ends in the width direction of the ultraviolet irradiation means outside the width of the handrail, it is possible to directly irradiate the outer peripheral side of the side surface of the handrail with ultraviolet rays, and sterilize the handrail efficiently and sufficiently. Can be carried out.

The lateral length (distance between both ends) of the ultraviolet irradiation means is not particularly limited, but is, for example, 80 mm or more, preferably 85 mm or more, and more preferably 90 mm or more. Further, the upper limit of the lateral length of the ultraviolet irradiation means is not limited, but is preferably 180 mm or less, more preferably 150 mm or less, and further preferably 130 m or less.

The "region continuous along the moving direction of the handrail" means the vertical direction of the "region 6 in which the ultraviolet irradiation means is installed" shown by the dotted line in FIG. 1 (B). Hereinafter, a specific embodiment of a continuous region along the moving direction of the handrail will be described with reference to FIGS. 3 to 6.
For example, in the case of an ultraviolet irradiation means in which two ultraviolet lamps (ultraviolet radiation portions) of the straight tube type 11 shown in FIG. 3 are installed along the moving direction of the handrail, the "area in which the ultraviolet irradiation means is installed" is straight. It means the length of two tube type UV lamps. In the case of the ultraviolet irradiation means in which the four ultraviolet lamps (ultraviolet radiation part) of the straight tube type 11 are installed perpendicular to the moving direction of the handrail as shown in FIG. 4, the "area in which the ultraviolet irradiation means is installed" is 4. It means the distance of how to move the handrail where the UV lamp of the book is installed. As shown in FIG. 5, in the case of the ultraviolet irradiation means in which the straight tube portion 14 of the ultraviolet lamp (ultraviolet radiation portion) of the U-shaped tube type 12 is installed along the moving direction of the handrail, the "area in which the ultraviolet irradiation means is installed" is , Means the length including the straight tube portion 14 and the lamp base (eg, base). In the case of an ultraviolet irradiation means in which a U-shaped tube type 15 ultraviolet lamp is installed so that the U-shape surrounds the circumference of the handrail as shown in FIG. 6, the "area in which the ultraviolet irradiation means is installed" is up and down. It means the distance of the U-shaped part of. The aspect of the "region continuous along the moving direction of the handrail" of the ultraviolet irradiation means of the present invention is not limited to the aspect of FIGS. 3 to 6.

The length of the continuous region along the moving direction of the handrail is not particularly limited, but is, for example, 100 to 800 mm, preferably 200 to 800 mm, more preferably 300 to 800 mm, and further. It is preferably 400 to 800 mm, more preferably 500 to 800 mm, still more preferably 600 to 800 mm.
By installing the ultraviolet irradiation means in a continuous region along the moving direction of the handrail, the handrail can be continuously irradiated with ultraviolet rays, and the handrail can be sterilized efficiently and sufficiently.

The ultraviolet irradiation means has at least a part of an ultraviolet emitting portion continuously arranged on a normal line with respect to the surface between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail.
As shown in FIG. 1A, the outer surface of the handrail is divided into an outer peripheral surface 2, side surfaces 3 and 4, and an inner peripheral surface 5, and the side surface is further divided into a side surface outer peripheral side 3 and a side surface inner peripheral side 4. Divided.
The "surface between the outer peripheral sides of both side surfaces including the outer peripheral surface" means the surfaces of the outer peripheral side 3 on the left side surface, the outer peripheral surface 2, and the outer peripheral side 3 on the right side surface. The normal 7 is a straight line orthogonal to the tangent line (or tangent plane) at the contact point. Therefore, "having at least a part of the ultraviolet radiating portion continuously arranged on the normal line with respect to the surface between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail" means that the outer peripheral side of the left side surface of the handrail is provided. 3. It means that the ultraviolet irradiation portion is continuously arranged on all or part of the normal of the outer peripheral surface 2 and the right side outer peripheral side 3.

In the irradiation means of the present invention, the feeding line for supplying electric power to the ultraviolet irradiation means is routed in the direction opposite to or perpendicular to the moving direction of the handrail.
In the present specification, the feeding line means an electric wire that supplies electric power to the ultraviolet irradiation means. The feeder is located in the direction opposite to or perpendicular to the moving direction of the handrail. Specifically, the position of the feeding line from the lamp base (for example, the base) of the ultraviolet irradiation part (ultraviolet lamp) is not in the area corresponding to the width of the handrail, and the lamp base of the ultraviolet irradiation part (ultraviolet lamp). Means that is not present in the continuous region of the exit portion height of the handrail and the horizontal movement portion height.
By arranging the feeder line in the direction opposite to or perpendicular to the moving direction of the handrail, it is possible to prevent the feeder line from being caught in the handrail.

In the irradiation device of the present invention, the ultraviolet irradiation unit is, but is not limited to, an LED element continuously arranged facing the surface of the handrail. The LED element 17 is a light emitting diode element, which is a semiconductor element that emits light when a voltage is applied (FIG. 7). The ultraviolet irradiation unit of the LED element 17 can also be installed, for example, in the embodiment shown in FIGS. 3 to 6.

In the irradiation device of the present invention, the ultraviolet radiation portion is a discharge lamp in which a discharge container continuously extends so as to face the surface of the handrail. The ultraviolet irradiation unit of the discharge lamp can be installed, for example, in the embodiment shown in FIGS. 3 to 6.
In the present specification, the "discharge container" means a portion where the ultraviolet rays of the ultraviolet lamp are radiated to the outside, for example, a portion of a quartz glass tube.

In the irradiation means of the present invention, the ultraviolet irradiation means is not limited, but the ultraviolet irradiation unit (LED element, discharge lamp, etc.) of the ultraviolet irradiation means is continuously arranged facing the surface of the handrail. (Fig. 1C). Therefore, the ultraviolet irradiation unit is installed in a part or all of the region facing the folded portion of the handrail, but is not limited to the ultraviolet irradiation unit. The folded portion of the handrail means a substantially semicircular portion from the portion where the handrail at the lower part of the man conveyor comes out to the horizontal movement part of the handrail at the upper part of the man conveyor.

In one embodiment of the present invention, as shown in FIG. 3, the discharge container is composed of a straight pipe portion along the moving direction of the handrail 1, and at least a part of the straight pipe portion is the handrail. It is placed inside the width of. For example, in the case of an ultraviolet irradiation means using two straight tube type 11 ultraviolet lamps (LED element, discharge lamp, etc.), the outside of one ultraviolet lamp is arranged outside one end of the width of the handrail. Its inside is located inside one end of the width of the handrail. Further, the outside of the other UV lamp is arranged outside the other end of the width of the handrail, and the inside thereof is arranged inside the other end of the width of the handrail. In the conventional irradiation device, as shown in FIG. 2B, the inside of the straight tube portion of the ultraviolet irradiation means is arranged outside the width of the handrail.
The straight pipe portion may be a straight pipe portion, or may have one or more bent portions along the folded portion of the handrail. It may have two or three or more bent portions.

In another embodiment of the present invention, as shown in FIG. 4, the discharge container is composed of a straight pipe portion perpendicular to the moving direction of the handrail 1, and at least a part of the straight pipe portion is the handrail. It is placed inside the width of. For example, in the case of an ultraviolet irradiation means that uses four straight tube type 11 ultraviolet lamps (LED elements, discharge lamps, etc.) perpendicular to the moving direction of the handrail, both ends of the straight tube type ultraviolet lamp are both ends of the width of the handrail. It is placed outside of. The vicinity of the central portion of the straight tube type ultraviolet lamp is arranged inside the width of the handrail. The straight pipe portion may be straight or may be slightly bent (including curved) along the handrail.

In another embodiment of the present invention, as shown in FIG. 5, the discharge container is composed of a straight pipe portion along the moving direction of the handrail 1 and a curved pipe portion along the width direction of the handrail 1. Therefore, at least a part of the straight pipe portion is arranged outside the width of the handrail, and the length of the curved pipe portion is longer than the width of the handrail. In the case of an ultraviolet irradiation means that uses the straight tube portion 14 of a U-shaped tube type 12 ultraviolet lamp (LED element, discharge lamp, etc.) along the moving direction of the handrail, both ends of the straight tube portion 14 are both ends of the width of the handrail. It is placed outside of. Then, a part of the curved tube portion 13 is arranged inside the width of the handrail. The straight pipe portion 14 may be a straight pipe, or may have one or more bent portions along the folded portion of the handrail. It may have two or three or more bent portions.

In another embodiment of the invention, as shown in FIG. 6, the discharge vessel has a curved shape along the surface of the handrail. When using a U-shaped tube type ultraviolet lamp (LED element, discharge lamp, etc.) when the ultraviolet irradiation means is viewed from above, the discharge container on the side of the upper part of the "U" faces one side of the handrail. A "U" vertical discharge vessel faces one outer surface of the handrail, and a horizontal discharge vessel at the bottom of the "U" faces the other side of the handrail.

In the irradiation device of the present invention, the ultraviolet emitting unit is not particularly limited as long as it can emit ultraviolet rays, but for example, an excimer lamp or a rare gas in which a mixed gas of a rare gas or a rare gas and a halogen gas is sealed. Examples thereof include a mercury lamp filled with mercury and a fluorescent UV lamp having a fluorescent substance film formed therein. In order to prevent the generation of ozone together with the radiation of ultraviolet rays, it is preferable to prevent the inclusion of ultraviolet rays having a wavelength of 200 nm or less.

In the irradiation device of the present invention, the ultraviolet irradiation means is not limited, but may be installed so that the irradiation distance from the surface of the handrail is different. For example, the ultraviolet irradiation means may be installed so that the irradiation distance along the normal line from the surface of the handrail differs along the moving direction of the handrail. The irradiation distance along the normal from the surface of the handrail is not limited, but is, for example, 5 to 50 mm, preferably 10 to 40 mm.

In one embodiment of the present invention, the surface between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail is directly irradiated with the ultraviolet rays radiated from the ultraviolet irradiation means, and the inner peripheral side of the side surface of the handrail is directly irradiated. The surface between the inner peripheral surface is irradiated by reflecting the ultraviolet rays radiated from the ultraviolet irradiation means.
As shown in FIG. 1, the outer peripheral surface of the handrail is directly irradiated with ultraviolet rays from the ultraviolet irradiation means. On the other hand, it is preferable to irradiate the surface between the inner peripheral side of the side surface and the inner peripheral surface with the reflected ultraviolet rays because the ultraviolet rays of the ultraviolet irradiation means may not reach directly. In order to reflect ultraviolet rays, for example, a reflector can be installed inside the housing of the irradiation device.

In the irradiation device of the present invention, the ultraviolet rays emitted from the ultraviolet irradiation means are non-uniformly applied to the continuous surfaces of the outer peripheral surface, the side surface, and the inner peripheral surface of the handrail, although not limited to the above. It may be irradiated. The amount of ultraviolet light may be the amount of light that efficiently inactivates pathogens such as bacteria or viruses. That is, it is not necessary to irradiate all the surfaces of the handrail with a uniform amount of light.

In the irradiation device of the present invention, the ultraviolet irradiation means is installed at the folded-back portion of the handrail, and is between the height of the exit portion of the handrail and the height of the horizontally moving portion. It is installed in a part or all of the continuous area of.

The handrail moves at the same speed as the stairs of the escalator or the walking part of the moving walkway. Therefore, by grasping the handrail, it is possible to prevent an accident such as a fall in the stairs portion or the walking portion. The handrail has a single connected structure, and moves at the same speed as the stairs of the escalator or the walking part of the moving walkway in the exposed upper surface, and in the hidden lower surface, the direction of movement of the exposed stairs. It is rotating in the opposite direction. The direction of the upper surface portion and the lower surface portion is changed at the folded portion.
The folded portion of the handrail is a substantially semicircular portion from the portion where the handrail on the lower surface portion of the man conveyor protrudes to the outside to the handrail horizontal moving portion on the upper surface portion of the man conveyor. The part where the handrail comes out is called the "exit part of the handrail". The height of the outlet portion of the handrail is, but is not limited to, 100 mm to 200 mm. The height of the horizontally moving portion of the handrail is, but is not limited to, 900 mm to 1000 mm, for example, 920 mm or 950 mm.

Therefore, the ultraviolet irradiation means is installed, for example, at all or a part of the position having a height of 100 mm to 1000 mm, facing the handrail. The lower limit of the height is, for example, 100 mm to 200 mm, and the upper limit of the height is, for example, 900 mm to 1000 mm.

The upper end of the housing of the irradiation device is not limited, but is lower than the height of the horizontally moving portion or the height of the horizontally moving portion, and is located within 1/3 from the height of the folded portion of the handrail. .. The height of the horizontally moving portion is, for example, 900 mm to 1000 mm, and therefore the upper end of the housing is preferably located at a height of 900 mm to 1000 mm or less. The top 1/3 of the height of the folded portion can be calculated by the height of the mounting position of each handrail, but is, for example, 640 mm or more, 660 mm or more in some embodiments, and 680 mm or more in some embodiments. In some embodiments, it is 700 mm or more, in some embodiments it is 720 mm or more, and in some embodiments it is 740 mm or more. The relatively high position of the upper end of the housing of the irradiation device allows passengers to easily recognize that the handrail is sterilized. Therefore, it is easy for passengers to grasp the sterilized handrail. If the upper end is below 1/3, the irradiation device may not be in the line of sight of the passenger and may hit a foot or the like. Having the upper end at the top can prevent such accidents.
The housing includes the ultraviolet irradiation means. The housing also has a handrail inlet and a handrail outlet to be sterilized. The exit of the handrail is not limited, but preferably does not cover the horizontally moving portion. Covering the horizontal area can make it difficult to grip the handrail.

When the length of the region along the moving direction in which the ultraviolet irradiation means is installed is in the range of 100 to 800 mm, and the moving speed of the handrail is in the range of 10 to 50 m / min, the handrail The surface is irradiated with ultraviolet rays so that the illuminance is 1.4 mW / cm ² or more and the irradiation amount is 1.1 mJ / cm ² or more.

The length of the region along the moving direction in which the ultraviolet irradiation means is installed is not limited, but is, for example, 100 to 800 mm, preferably 200 to 800 mm, and more preferably 300 to 800 mm. It is more preferably 400 to 800 mm, further preferably 500 to 800 mm, still more preferably 600 to 800 mm.
The moving speed of the handrail is not limited, but is, for example, 10 to 50 m / min, preferably 20 to 45 m / min, and more preferably 30 to 40 m / min.

On the surface of the handrail irradiated with ultraviolet rays by the ultraviolet irradiation means, for example, the illuminance is 1.4 mW / cm ² or more and the irradiation amount is 1.1 mJ / cm ² or more, preferably the illuminance is 2.4 mW. / Cm ² or more and irradiation amount of 1.9 mJ / cm ² or more, more preferably illuminance of 3.3 mW / cm ² or more and irradiation amount of 2.7 mJ / cm ² or more, still more preferably the illuminance. When the illuminance is 6.2 mW / cm ² or more and the illuminance is 5.0 mJ / cm ² or more, pathogens such as bacteria or viruses can be sufficiently killed. An illuminance meter having a sensitivity to ultraviolet rays emitted from an ultraviolet irradiation means, specifically, an illuminance meter having a peak sensitivity near a wavelength of 254 nm radiated from a mercury lamp (illuminance meter UVM03A manufactured by the applicant, receiver UV). -Using SN25), the illuminance at the position corresponding to the surface of the handrail is measured, and the irradiation amount according to the moving speed of the handrail is calculated.

The irradiation device of the present invention can sufficiently sterilize the handrail of a man conveyor such as an escalator or a moving walkway, and thus can prevent a fall accident without the passengers hesitating to hold the handrail. can.

1 ... Handrail;
2 ... Outer surface;
3 ... Side outer circumference;
4 ... Side inner circumference;
5 ... Inner circumference;
6 ... Area where UV irradiation means is installed;
7 ... normal;
8 ... Handrail folded part;
9 ... Handrail horizontal movement part;
10 ... Handrail exit part;
11 ... Low pressure mercury lamp (straight tube type);
12 ... Low pressure mercury lamp (U-shaped tube type);
13 ... Curved tube (low pressure mercury lamp U-shaped tube type);
14 ... Straight tube (low pressure mercury lamp U-shaped tube type);
15 ... Low-pressure mercury lamp (U-shaped tube type);
16 ... Power supply unit (base);
17 ... LED irradiation unit;
18 ... Height of horizontal movement part of handrail;
19 ... Height of handrail exit;
20 ... Ultraviolet irradiation means;
21 ... Housing;
22 ... Opening;

Claims (15)

An irradiation device that sterilizes the handrails of man conveyors.
An irradiation device characterized in that both ends in the width direction of the ultraviolet irradiation means are located outside the width of the handrail and are installed in a continuous region along the moving direction of the handrail. The irradiation device according to claim 1, wherein the ultraviolet irradiation means has at least a part of an ultraviolet emitting portion continuously arranged on a normal line between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail. .. The irradiation device according to claim 1 or 2, wherein the feeding line for supplying electric power to the ultraviolet irradiation means is routed in a direction opposite to or perpendicular to the moving direction of the handrail. The irradiation device according to any one of claims 1 to 3, wherein the ultraviolet irradiation unit is an LED element continuously arranged facing the surface of the handrail. The irradiation device according to any one of claims 1 to 3, wherein the ultraviolet radiation unit is a discharge lamp in which a discharge container continuously extends so as to face the surface of the handrail. The irradiation according to claim 5, wherein the discharge container is composed of a straight pipe portion along the moving direction of the handrail, and at least a part of the straight pipe portion is arranged inside the width of the handrail. Device. The discharge container is composed of a straight pipe portion along the moving direction of the handrail and a curved pipe portion along the width direction of the handrail, and at least a part of the straight pipe portion is wider than the width of the handrail. The irradiation device according to claim 5, wherein the curved tube portion is arranged on the outside and the length of the curved tube portion is longer than the width of the handrail. The irradiation device according to any one of claims 5 to 7, wherein the discharge container has a shape bent along the surface of the handrail. The ultraviolet radiation unit formed an excimer lamp in which a rare gas or a mixed gas of a rare gas and a halogen gas was sealed in a discharge vessel, a mercury lamp in which a rare gas and mercury were enclosed in a discharge vessel, and a phosphor film in the discharge vessel. The irradiation device according to any one of claims 5 to 8, which is a lamp selected from the group consisting of fluorescent UV lamps. The irradiation device according to any one of claims 1 to 9, wherein the ultraviolet irradiation means is installed so that the irradiation distance from the surface of the handrail is different. The surface between the outer peripheral sides of both side surfaces including the outer peripheral surface of the handrail is directly irradiated with the ultraviolet rays radiated from the ultraviolet irradiation means, and the surface between the inner peripheral side of the side surface of the handrail to the inner peripheral surface is The irradiation device according to any one of claims 1 to 10, wherein the ultraviolet rays emitted from the ultraviolet irradiation means are reflected and irradiated. The irradiation device according to claim 11, wherein the ultraviolet rays radiated from the ultraviolet irradiation means are non-uniformly applied to the continuous surfaces of the outer peripheral surface, the side surface, and the inner peripheral surface of the handrail. The ultraviolet irradiation means is installed in a folded portion of the handrail, and is installed in a part or all of a continuous region between the height of the exit portion of the handrail and the height of the horizontally moving portion. The irradiation device according to any one of claims 1 to 12. Any of claims 1 to 13, wherein the upper end of the housing of the irradiation device is lower than the height of the horizontally moving portion or the height of the horizontally moving portion and is located within 1/3 from the height of the folded portion of the handrail. The irradiation device according to item 1. When the length of the region along the moving direction in which the ultraviolet irradiation means is installed is in the range of 100 to 800 mm, and the moving speed of the handrail is in the range of 10 to 50 m / min, the handrail The irradiation device according to any one of claims 1 to 13, wherein the surface is irradiated with ultraviolet rays so that the illuminance is 1.4 mW / cm ² or more and the irradiation amount is 1.1 mJ / cm ² or more. ..

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