JP7671189B2 - Partition device - Google Patents

Description

This disclosure relates to a partition device that can divide a space.

Means for dividing a space include those described in Patent Document 1 and Patent Document 2, for example. According to these, it is possible to switch between a position that lets in light and a position that blocks light. In all of these, sheets with light-transmitting areas and light-blocking areas are arranged side by side in the forward direction. When the light-transmitting areas overlap, light is let in, and when the light-transmitting areas and light-blocking areas overlap, light is blocked.

Patent Document 3 also discloses a partition to prevent droplet infection.

JP 2011-132788 A Utility Model Registration No. 3203701 Utility Model Registration No. 3228823

Conventional techniques such as those described in the patent documents above were unable to effectively combine lighting, ventilation, heat insulation, and droplet diffusion control.

The objective of this disclosure is to provide a partition device that can effectively combine lighting, ventilation, heat insulation, and droplet diffusion prevention.

One aspect of the present disclosure is a partition device having at least one partition member, the partition member having at least two plate-shaped shields, the shields having a plurality of transparent portions arranged in a thickness direction thereof, and adjacent transparent portions having non-transparent portions that do not communicate with each other in the thickness direction, the two shields being stacked such that one of the plate surfaces is in contact with each other, or arranged such that there is a gap of 3.0 mm or less between the plate surfaces, and the partition device being switchable between a position in which the transparent portion of one shield overlaps with the transparent portion of the other shield, and a position in which at least a portion of the transparent portion of one shield is blocked by the non-transparent portion of the other shield.

A plurality of partition members may be provided. In this case, at least two of the plurality of partition members may be disposed in opposing positions.

An antiviral agent may be placed in the partition member.

The partition member may have a frame body, the inside of which is divided into a plurality of compartments, and at least one of the compartments may be provided with two shields.

The partition device disclosed herein can effectively provide lighting, ventilation, heat insulation, and droplet diffusion prevention all at the same time.

FIG. 1 is a front view of a partition member 10 in a transparent position. FIG. 2 is a front view of the partition member 10 in the non-transmitting position. FIG. 3 is an exploded view of the partition member 10. As shown in FIG. FIG. 4 is a cross-sectional view of the partition member 10. As shown in FIG. FIG. 5 is another cross-sectional view of the partition member 10. As shown in FIG. FIG. 6 is a diagram illustrating the configuration of a partition member 10'. FIG. 7 is a diagram illustrating the transmission portion 24. As shown in FIG. FIG. 8 is a diagram illustrating an example in which the transmission portions 24 are arranged in a line in the x and y directions. FIG. 9 is a diagram illustrating an example in which the transmitting portion 24 may have a shape other than a circle. FIG. 10 is a diagram for explaining an example in which the arrangement pitch of the transmission parts 24 is different in one shield 21. In FIG. FIG. 11 is a diagram for explaining an example in which the opening size of the transmission portion 24 is different in one shield 21. In FIG. FIG. 12 is a cross-sectional view of the partition member 10 in the non-transmitting position. FIG. 13 is a cross-sectional view of the partition member 10 illustrating a state in which the degree of transmission is adjusted. FIG. 14 is a diagram illustrating a circular partition member 50. As shown in FIG. FIG. 15 is an exploded perspective view illustrating the partition device 100. As shown in FIG. FIG. 16 is a perspective view illustrating the partition device 110. As shown in FIG. FIG. 17 is a diagram for explaining the configuration of the test partition device. FIG. 18 is a diagram for explaining the measurement of temperature and illuminance. FIG. 19 is a diagram for explaining the measurement of wind speed. FIG. 20 is a diagram for explaining droplet measurement. FIG. 21 is a diagram for explaining droplet measurement. FIG. 22 is a diagram for explaining sound measurement. FIG. 23 is a diagram for explaining the method of test C.

The present disclosure will be described below based on an example embodiment. The partition device of the present disclosure is configured with at least one partition member. First, the configuration of the partition member will be described.

1 and 2 are front views of a partition member 10 according to one embodiment, viewed from one side, in a position where the partition member 10 constitutes a part of a partition device and is installed. Fig. 1 shows the partition member 10 in a first position, which is a transparent position, and Fig. 2 shows the partition member 10 in a second position, which is a non-transparent position.
The partition member 10 of the present disclosure can be installed in buildings, vehicles, structures, etc. to adjust the degree of transparency from a transparent state to a non-transparent state.

1.1. Uses of the Partition Member Here, the partition member 10 constituting the partition device is arranged to partition a space, and adjusts the transmission of light, air, droplets, and sound between one side and the other side of the partition member 10. Therefore, the location where the partition member 10 is arranged is not particularly limited, and examples of the partition member 10 include a partition between the inside and outside of a building, a partition between the inside and outside of a vehicle, a partition within an indoor space such as a partition (partition) arranged between adjacent indoor spaces, a partition within a building or vehicle, a partition for a space installed outdoors (such as a smoking booth or a multipurpose booth), and a partition in an outdoor space such as a balcony or a fence.
In addition, the locations where partitions and partitions are placed in the above-mentioned buildings, vehicles, spaces installed outdoors, etc., between indoors and outdoors, inside and outside, between adjacent indoor spaces, between adjacent outdoor spaces, etc., can be appropriately placed in any one or more desired locations on the wall, floor, or ceiling surfaces of these buildings, etc., or on the windows or doors, etc.
The buildings are not limited to houses, but include various buildings such as offices, stores, large commercial facilities, educational facilities, educational facilities, hospitals and welfare facilities, and accommodation facilities. On the other hand, the vehicles include automobiles, railroad cars, ships, aircraft, spacecraft, and the like.

1.2. Configuration of the partition member In the drawings shown below, for ease of viewing, the components and parts that make up the partition member may be exaggerated, deformed, or omitted. For example, the thickness of a component may be expressed as being thicker than it actually is. For ease of viewing, only some of the repeated symbols may be shown, and symbols may be omitted for other components.
For convenience, the drawings also show the directions of a so-called three-dimensional coordinate system (x, y, z) that are mutually orthogonal. In this embodiment, the partition member is described in the installed position, so the x direction is the horizontal direction, the y direction is the vertical direction, and the z direction is the thickness direction. Note that each direction in the xy plane may be referred to as the finding direction, and the z direction as the prospective direction.

Figure 3 is an exploded view of the partition member 10, Figure 4 is a cross-sectional view taken along the line IV-IV in Figure 1, and Figure 5 is a cross-sectional view taken along the line V-V in Figure 1. As described below, the cross section in Figure 4 is a cross section taken in a direction perpendicular to the direction in which the shielding body 21 is moved to switch between the transparent and non-transparent states, and the cross section in Figure 5 is a cross section taken in a direction parallel to the direction in which the shielding body 21 is moved to switch between the transparent and non-transparent states.

The partition member 10 in this embodiment is rectangular when viewed from the front and includes a frame body 11 arranged along the edges of the four sides, and two shielding bodies 21 arranged within the frame defined by the frame body 11.

The frame body 11 in this embodiment comprises horizontal frames 12, which are frame members arranged to extend horizontally on the top and bottom, and vertical frames 13, which are frame members arranged to extend vertically across the ends of the horizontal frames 12, and these are combined to form a frame. In other words, in this embodiment, the frame body is formed by framing four frame members.

The horizontal frame 12 is a frame material that corresponds to the upper and lower frames of the frame body 11. As can be seen from the cross section shown in Figure 4, the horizontal frame 12 has a piece 12a extending in the z direction and pieces 12b extending in the y direction provided at one end and the other end of the piece 12a in the z direction. The horizontal frame 12 is formed to extend in the x direction with this cross section. In other words, the horizontal frame 12 has a groove 12c formed by the piece 12a and the two pieces 12b.
The two horizontal frames 12 are arranged in the y direction at a predetermined interval based on the size of the shield 21 in the y direction, and the grooves 12c are disposed so as to face each other.
The specific shape of the horizontal frame is not particularly limited, and it can have any shape required as long as it can hold both the upper and lower ends of the shielding body 21 while allowing the shielding body 21 to move as described below.

The vertical frames 13 are frame materials corresponding to the left and right frames of the frame body 11. As can be seen from the cross section shown in Fig. 5, the vertical frame 13 has a piece 13a extending in the z direction and pieces 13b extending in the x direction provided at one end and the other end of the piece 13a in the z direction. The vertical frame 13 is formed to extend in the y direction with this cross section. In other words, the vertical frame 13 has a groove 13c formed by the piece 13a and the two pieces 13b.
The two vertical frames 13 are arranged in the x direction at a predetermined interval based on the size of the shield 21 in the x direction and the size of a space to be secured for the movement of the shield 21, which will be described later, and are disposed so that the grooves 13c face each other. As will be described later, the grooves 13c function as grooves that form a space for storing the end of the shield 21 within the vertical frames 21 when the shield 21 is moved, in order to set the relationship between the transmissive portion 24 and the non-transmissive portion 25 to a non-transmissive state.
The specific shape of the vertical frame is not particularly limited, and it can have any shape required as long as it can hold both left and right ends of the shielding body 21 while allowing the shielding body 21 to move as described below.

In addition, in Figures 1 and 2, one or more vertical frames (in this case, also called vertical rungs) of the above-mentioned structure can be installed between a pair of vertical frames 13, 13 and parallel to them (extending in the y direction), or one or more horizontal frames (in this case, also called horizontal rungs) of the above-mentioned structure can be installed between a pair of horizontal frames 12, 12 and parallel to them (extending in the x direction), or one or more vertical frames (vertical rungs) and one or more horizontal frames (horizontal rungs) can be installed between a pair of vertical frames 13, 13 and between a pair of horizontal frames 12, 12, so that the frame body 11 can be divided into a lattice-like structure when viewed in a planar view from the z direction.
FIG. 6 shows, as an example, a partition member 10' in which three horizontal bars 11a are arranged between a pair of horizontal frames 12, 12, and one frame body 11 is divided into four sections.
In the frame 11 divided into such a lattice pattern, a pair of shields 21, 21 having the structure shown in Figs. 1 to 5 can be provided for each lattice.

In the configuration in which a pair of shields 21, 21 are provided on the frame 11 divided into such a lattice shape, the following advantageous effects are achieved.
(1) Since the weight of each shielding body 21 is reduced, it is possible to easily switch between a position in which the transparent portions of both opposing shielding bodies overlap and a position in which one transparent portion (at least a portion of it) is blocked by the non-transparent portion of the other shielding body with little force.
(2) Since the gap between a pair of opposing shields 21, 21 can be easily reduced, it is easy to improve the shielding effect against light, air, and droplets when the shield is in the "blocked position."
(3) The entire surface of the partition member 10 is divided into a lattice pattern, and the amount of blocking of light, air, and droplets can be adjusted individually for each lattice-like section, making it possible to adjust the amount of blocking of light, etc. by the partition member 10 more finely and continuously.

At least two shields 21 are provided, and the shields 21 are plate-like members that switch between a transmissive state and a non-transmissive state. Therefore, the shield 21 in this embodiment is configured to include a base material 22 and decorative materials 23 disposed on both sides of the base material 22, as well as a transmissive portion 24 and a non-transmissive portion 25. Each of these will be described below.
Here, "plate-like" may mean any of a film, a sheet, and a plate. Generally, the term film, sheet, and plate are used in order from the one having a relatively thin thickness, but in this embodiment, the difference in the thickness form of these substrates is not essential or important. Therefore, in this specification, even if any of the terms film, sheet, and plate are appropriately replaced with other terms, the essence of the present invention and the interpretation of the claims will not change.

In this embodiment, the base material 22 is a plate-like member that functions as a base material on which the decorative material 23 is laminated, and also has a function of imparting strength to the shielding body 21. The material constituting the base material 22 may be transparent or opaque, and there are no particular limitations on the material or color.
Examples of materials that can be used include the following:
- Wood boards such as veneer, plywood, laminated lumber, particle board, fiberboard, etc. made from various types of wood such as cedar, cypress, pine, keyaki, oak, and lauan.
- Various ceramic panels made of gypsum boards, lightweight foamed concrete, cement, pottery, porcelain, stone, earthenware, glass, etc.
Metal plates made of metals such as iron, aluminum, copper, titanium, or alloys containing these metals, for example, iron alloys such as carbon steel and stainless steel, copper alloys such as brass and bronze, and aluminum alloys such as duralumin. The surfaces of these metal plates may be subjected to various rust-proofing or corrosion-proofing treatments as necessary. For example, in the case of carbon steel plates, carbon steel plates having a zinc-plated surface may be used.
- Thermoplastic resin plates made of thermoplastic resins such as polystyrene foam, styrene-based resins such as ABS resin (acrylonitrile-butadiene-styrene copolymer), vinyl chloride-based resins such as polyvinyl chloride and ethylene-vinyl chloride copolymer, olefin resins such as polyethylene, polypropylene, and ionomer, acrylic resins such as polymethyl methacrylate, polycarbonate resin, polyvinylidene fluoride, and polytetrafluoroethylene.
- Thermosetting resin boards made of thermosetting resins such as phenolic resin, urea resin, unsaturated polyester resin, urethane resin, epoxy resin, and melamine resin.
- Composite material plates (so-called FRP plates) made by impregnating uncured curable resins such as phenolic resin, urea resin, unsaturated polyester resin, urethane resin, epoxy resin, melamine resin, and diallyl phthalate resin into glass fiber nonwoven fabric, cloth, paper, and other various fibrous substrates and curing them.
However, from the viewpoints of cost, workability, weight, operability, and strength, it is preferable to use a plate made of a material using resin among the above.

The thickness of the base material 22 may be any thickness that can provide the necessary strength to the shield 21, and the required thickness varies depending on the material, but it is preferable that the thickness is 0.5 mm or more. This can more reliably improve breathability, operability, and splash diffusion prevention. If the thickness is thinner than this, bending is likely to occur.
On the other hand, from the viewpoint of preventing the diffusion of droplets, the thicker the better, but from the viewpoints of breathability and operability, the thickness is preferably 2 mm or less.

The decorative material 23 in this embodiment is disposed on both sides of the base material 22 to form the non-transparent portion 25, and also imparts a design appearance such as a pattern to the shielding body 21, thereby imparting a desired texture to the shielding body 21. A typical decorative material that can be applied is a so-called decorative sheet.
Examples of such materials include paper such as thin paper, fine paper, craft paper, Japanese paper, titanium paper, resin-impregnated paper, and reinforced paper; woven and nonwoven fabrics made of wood fiber, glass fiber, asbestos, polyester fiber, vinylon fiber, rayon fiber, and the like; synthetic resin sheets such as polyolefin, polyester, polyacrylic, polyamide, polyurethane, and polystyrene; single-layer bodies such as plates or sheets of metals such as iron, aluminum, copper, titanium, and the like, or alloys containing these metals; and laminates formed by laminating two or more different types of the above-mentioned single-layer bodies.
The visible surfaces of these materials can be configured, as necessary, with a desired design (decoration) by forming a relief pattern, coloring, laminating a design layer, laminating a thin metal film, etc., either alone or in combination.
Furthermore, if the base material 22 itself has the desired hiding properties, color tone, mechanical strength, etc., it is possible to omit laminating the decorative material 23 onto the base material 22, or to impart the desired design directly onto the observable surface of the base material 22 by laminating a pattern layer, forming a relief pattern, coloring, etc.

The design layer is a layer on which a design is applied, and can be any design, color pattern, photograph, painting, drawing, etc., without any particular limitation. Such a design layer can be formed by a printing method such as gravure printing, offset printing, silk screen printing, inkjet printing, or a coating method.
More specific examples of designs for the pattern layer include wood grain, stone grain, fabric grain, leather patterns, geometric shapes, letters, symbols, line drawings, floral patterns, stripes, checkered patterns, lightning bolt patterns, and various other abstract patterns.

The surface of the shielding body 21 may also be designed to have good slipperiness. For example, at least the outermost surface of the decorative material may be made of a material with high slipperiness, such as polyethylene or polytetrafluoroethylene, or a decorative material with an uneven pattern that is less likely to get caught may be used. This allows the shielding body 21 to move more smoothly, as described below.

The thickness of the decorative material 23 is not particularly limited, but is preferably in the range of 20 μm to 300 μm. This further enhances the effect of suppressing droplet diffusion. In addition, when an antiviral agent is used as described below, it is preferable that the thickness be in this range from the viewpoint of the placement of the antiviral agent.

This type of decorative material can be used to adjust the transmission of light, air, and droplets, controlling lighting, ventilation, heat insulation, and droplet diffusion prevention, while creating a partition member with a highly designed feel that makes use of the texture.

The bonding between the base material 22 and the decorative material 23 is not particularly limited, but in this embodiment, it is performed with an adhesive. Any known adhesive can be used, and examples of such adhesives include those containing polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, ionomer, butadiene-acrylonitrile rubber, chloroprene rubber, and natural rubber as an active ingredient.
The thickness of the adhesive layer is not particularly limited, but may be in the range of 0.1 μm to 50 μm.

The transparent portion 24 is a portion where the shielding body 21 is exposed when the partition member 10 is installed in a position where it is at least part of the partition device, that is, in this embodiment, a portion of the shielding body 21 that is not inserted inside the grooves 12c and 13c of the frame body 11, through which light and air pass in the thickness direction (z direction, forward direction) of the shielding body 21.
The non-transparent portion 25 is a portion of the shielding body 21 that is exposed when the partition member 10 is installed as at least part of the partition device, that is, in this embodiment, the portion of the shielding body 21 that is not inserted inside the grooves 12c and 13c of the frame body 11, other than the transparent portion 24, and is a portion that does not allow light or air to pass through in the thickness direction of the shielding body 21 (z direction, forward direction).

In this embodiment, the transmissive portions 24 are holes that penetrate and communicate with the base material 22 and the decorative material 23 in the thickness direction (z direction), and a plurality of the transmissive portions 24 are arranged in the xy in-plane direction (finding direction).
Although not shown in the figure, the shield may be an opaque substrate only, without any decorative material. In this example, since the shield is made of only the substrate, if the substrate has a hole that communicates with the substrate in the thickness direction, this hole becomes the transparent portion.
Further, instead of providing a decorative material on a transparent substrate, a non-transparent portion or a pattern layer may be provided by directly printing or painting on the substrate.

The above-described transmitting portions 24 are arranged in the xy plane direction as follows. That is, firstly, when the two shields 21 are overlapped such that one of their faces (a face parallel to the xy plane, a face extending in the view direction) contact each other, the transmitting portions 24 are in a position where they overlap in the thickness direction (view direction), i.e., a first posture. Secondly, when one shield 21 is moved in any direction in the xy plane direction (in this embodiment, when moved in the x direction) from such an overlapped posture, the entire opening of the transmitting portion 24 of one shield 21 is overlapped and blocked by the non-transmitting portion 25 of the other shield 21 on the surface where the two shields 21 contact each other, so that the transmitting portions 24 of both shields 21 do not overlap each other even partially in the thickness direction, i.e., a second posture.
This allows the film to be switched between a light- and air-transmitting state and a non-transmitting state, and provides high shielding properties in the shielding position.

4 and 5, the opposing plate surfaces of the pair of shields 21 are disposed in contact with each other with a gap of substantially 0 mm. According to this configuration, it is possible to obtain a particularly high shielding effect when one of the shields 21 is moved to a non-transmitting state (when the shield is in a second position), as described later.
However, in cases where it is not required to completely block (block) light, or where it is required to secure a desired amount of light while reducing the amount of light transmitted, a gap may be provided between the opposing plate surfaces of the two shields 21. The value (dimension) of the gap may vary depending on the light blocking performance required in the second position, the pitch and opening area of the transmitting portion 24, etc., but from the viewpoint of functioning as a partition member that achieves the effects of the present disclosure, it can be 3.0 mm or less. The lower limit of this interval is 0 mm as described above, but if a gap is intentionally provided from the above viewpoint, it is preferable that the gap be 0.1 mm or more.

In addition, the aperture ratio, which is the area occupied by the transmitting portion 24 when the shielding body 21 is viewed in the z direction, i.e., from the viewpoint of Fig. 1, is preferably 10% to 50%. If this is less than 10%, there is a risk that the effects of breathability and light gathering will be reduced, and if it exceeds 50%, there is a risk that the light blocking property and the function of suppressing the spread of droplets will be reduced. More preferably, it is 40% or less.
The aperture ratio is defined as follows: When the area of a region occupied by one transmitting portion 24 from the viewpoint of Fig. 1 is defined as the "aperture area," the total area of the aperture areas of all transmitting portions 24 is defined as the "total aperture area." The aperture ratio is then expressed as a percentage, which is the ratio of the total aperture area to the area of the portion where the shielding body 21 is exposed (in this embodiment, the area of the portion of the shielding body 21 that is not inserted into the grooves 12c and 13c of the frame body 11).

Moreover, it is preferable that the multiple transparent sections 24 are arranged in both the x and y directions, and more preferably, multiple transparent sections 24 with small opening areas are arranged in the x and y directions. This improves the appearance of the partition member 10 in the transparent state, and also makes it easier to see the scenery on the other side through the transparent sections 24, resulting in a better view. Furthermore, it is possible to enhance the droplet diffusion suppression effect.

Although the specific form of the opening for this purpose is not particularly limited, when the opening is circular as in this embodiment, the diameter of the opening can be 1 mm or more and 50 mm or less. Also, as shown in an enlarged view of a part of the shielding body 21 in Fig. 7, the pitches _Px , Py of adjacent transmitting portions 24 in the x and _y directions can be 2 mm or more and 200 mm or less.
When the opening is circular, the diameter of the opening is preferably 0.8 mm or more and 10 mm or less, more preferably 3 mm or more and 6 mm or less, from the viewpoint of suppressing droplet diffusion. This is because, even with the same aperture ratio, a smaller opening per transparent part reduces environmental changes and is superior in suppressing droplet diffusion. In addition, in the transparent state, the impression of the opening shape (being circular) is weakened, the appearance is further improved, and a highly designed space that makes use of the texture of the shielding body can be obtained. Furthermore, the amount of movement of the shielding body when switching between the transparent state and the shielding state can be reduced.

In addition, in this embodiment, the plurality of transmitting sections 24 are arranged such that adjacent transmitting sections 24 in the direction in which the shield 21 is moved (the x direction in this embodiment) are shifted in the y direction as described later, and are arranged in a so-called offset arrangement or staggered arrangement. This allows the transmitting sections 24 to be arranged more densely.
When such an offset arrangement is used, although there is no particular limitation, it is preferable that θ shown in Fig. 7 is 45° or more and 60° or less. From the viewpoint of blocking properties and suppression of droplet diffusion, it is more preferable that it is 45°.
Here, θ can be obtained as follows: When a point on the edge of the opening of one transmitting portion A is a, a point b is a point at the same position as a (the position corresponding to a) in the opening of the transmitting portion B adjacent to the transmitting portion A in the y direction, and a point c is a point at the same position as a (the position corresponding to a) in the opening of the transmitting portion C adjacent to the transmitting portion A and not offset in the x direction, a right-angled triangle abc is formed, and the apex angle of the transmitting portion B (point b) is θ.

Although an example in which the transmissive portions 24 are arranged in an offset manner has been described here, the present invention is not limited to this, and the transmissive portions 24 may be arranged in straight lines in the x and y directions as shown in FIG.
In addition, in this embodiment, an example in which the opening of the transmission portion 24 is circular has been described, but various opening shapes can be applied without being limited to this. Fig. 9 shows examples in which the opening shapes are square, triangular, and elliptical. In addition, various geometric patterns such as a polygon having pentagons or more and a star shape may be applied. It is not necessary for all the opening shapes to be the same, and one shield may be configured to include a plurality of different opening shapes.
However, in order to prevent the shielding body 21 from getting caught when it is moved, the shape of the opening of the transmission section 2 can be a circle or ellipse without corners, or a polygon with arc-shaped corners (so-called rounded corners).

In addition, the pitch and opening area of the transmitting portions 24 do not need to be the same within one shield 21, and may differ depending on the location. As an example of such a configuration, explanatory diagrams are shown in Figures 10 and 11. Figures 10 and 11 are views of the shield 21 as seen from the front, from the same perspective as Figure 1.
10 shows an example in which the pitch of the transmitting portion 24 is different between one end side and the other end side in the direction in which the shield 21 moves (the x direction in this embodiment). In this embodiment, the pitch of the transmitting portion 24 on the left side of FIG. 10 is made larger than the pitch of the transmitting portion 24 on the right side.
11 shows an example in which the opening area of the transmitting portion 24 differs between one end side and the other end side in the direction in which the shield 21 moves (the x direction in this embodiment). In this embodiment, the opening area of the transmitting portion 24 on the left side in FIG. 11 is smaller than the opening area of the transmitting portion 24 on the right side.

In this way, by making the pitch and opening area of the transmissive portions 24 different depending on the direction in which the shielding body 21 moves, the degree of light intake varies depending on the location when the shielding body 21 is moved, creating a unique appearance.
Although an example has been given above in which the pitch and the opening area are different between one end and the other end, this is not limiting, and these may be configured to change stepwise or continuously along the movement direction of the shield 21.
In addition, although the examples of different pitches and different opening areas have been described separately above, these may be combined, and the opening shape does not have to be circular, and a desired opening shape can be applied as described above. In other words, the examples of the configurations described above do not have to be applied by themselves, but may be applied in combination.

The thickness of the shield 21 is not particularly limited, but can be 0.1 mm or more and 3 mm or less. The thickness required in terms of strength varies depending on the material used, but from the viewpoints of ventilation, weight, operability, and prevention of droplet diffusion, it is preferable that it be 0.5 mm or more. On the other hand, from the viewpoints of ventilation, weight, and operability, it is preferable that it be 2 mm or less.

The total thickness of the two shields 21 is preferably 1 mm or more and 10 mm or less. Among these, from the viewpoints of breathability, weight, operability, and prevention of droplet diffusion, the total thickness is preferably 1 mm or more and 3 mm or less.
Furthermore, the thicknesses of the two shields 21 may be the same or different. When the two shields 21 are different, for example, the thicker shield 21 may be restricted in movement, while the thinner shield 21 may be movable. This makes it easier to move the shield 21 from one side, improving operability.

The above-mentioned components are combined, for example, as follows to form the partition member 10. This will further explain the form that each component of the partition member 10 should have.
As can be seen from FIGS. 1 to 4, two shields 21 are stacked so that one plate surface of each shield is in contact with the other plate surface.
The outer peripheral ends of the two shields 21 thus stacked are disposed inside the grooves 12 c of the horizontal frames 12 and the grooves 13 c of the vertical frames 13 that constitute the framed frame 11 .
At this time, the two shielding bodies 21 are sandwiched between the pieces 12b of the horizontal frame 12 and the pieces 13b of the building frame 13 so as to move as little as possible in the thickness direction (z direction, prospective direction).
In addition, as shown by S in Fig. 5, in order to switch between the open position and the shielded position, a large gap is provided between the piece 13a and the end face of the shield 21 for the frame material (vertical frame 13, groove 13c in this embodiment) arranged in the direction in which the shield 21 is moved. This gap allows the shield 21 to be moved while being held by the frame body 11. Therefore, this gap only needs to be provided within a range based on the distance required to move the shield 21. That is, the gap (the cavity created by the groove 13c) functions as a space for storing one of the shields 21 that has moved in the direction of arrow T (x direction) in Fig. 5 in the vertical frame 13 so that both shields 21 take the second position and the relationship between the transparent portion 24 and the non-transparent portion 25 is set to a non-transparent state, as shown in Fig. 12 and described later.

The partition member 10 configured in this manner can be operated, for example, as follows:

As shown in Figures 1, 4, and 5, the partition member 10 can be in a first position, which is a transparent state position in which the two shields 21 are aligned so that the x- and y-positions of the transparent portions 24 are the same and overlap in the z-direction. In this position, it is possible to transmit light and air through the transparent portions 24 of the two shields 21. In this embodiment, this position is the position with the largest opening and allows the most light and air to transmit. On the other hand, even though the partition member 10 is thus capable of transmitting light and air in the first position, the transmission of droplets can be greatly suppressed.

On the other hand, the partition member 10 can be moved from the position shown in Fig. 1, Fig. 4, and Fig. 5 in the x direction indicated by the arrow T in Fig. 5. This movement is not particularly limited, and for example, it is possible to move the shielding body 21 by touching the plate surface with a finger. As a result, as shown in Fig. 2 and Fig. 12, the transparent portion 24 of one shielding body 21 is shifted in the x direction relative to the transparent portion 24 of the other shielding body 21, and the entire transparent portion 24 of one shielding body 21 overlaps with the non-transparent portion 25 of the other shielding body 21 in the z direction, resulting in a second position in a non-transparent state. In this position, at the portion where the two shielding bodies 21 contact each other, the entire opening of the transparent portion 24 of one shielding body 21 is blocked by the non-transparent portion 25 of the other shielding body 21, so that light and air are blocked by the non-transparent portion 25, resulting in a shielding state. The transmission of droplets is also blocked in the same manner.

In this embodiment of the partition member 10, the two shielding bodies 21 are in contact with each other (0 mm apart), minimizing light and air leakage and improving shielding performance.

Furthermore, by increasing the shielding properties in this manner, the occurrence of light-induced brightness and darkness when viewing the partition member 10 from the perspective shown in Figure 2 is suppressed, so that the desired design applied to the decorative material 23 can be expressed in a unified manner across the entire surface of the partition member 10, despite the presence of the transparent portion 24.
On the other hand, when a gap is provided between the opposing plate surfaces of the two shielding bodies 21, such as in the case where complete blocking of light is not required at the location where the partition member 10 is arranged as a partition device as described above, or where it is required to reduce the amount of light transmitted while ensuring a desired amount of light, the degree of light blocking ability is reduced, but the effect based on the reason for providing the gap is still achieved.

When one shield 21 is moved in the x direction indicated by the arrow T in FIG. 5 from the position shown in FIG. 5, the x-direction positions of the transparent portion 24 of one shield 21 and the transparent portion 24 of the other shield 21 are shifted as shown in FIG. 13, and parts of the transparent portions 24 overlap in the z direction, and other parts overlap with the non-transparent portion 25 in the z direction. In this position, light and air pass through the partition member 10, but the amount of transmission is reduced compared to the positions shown in FIG. 1, FIG. 4, and FIG. 5. In this way, the partition member 10 can adjust the degree of light that is collected and the degree of air that is transmitted (ventilation performance) steplessly by the amount of movement of the light shield 21. Similarly, the degree of transmission of droplets can be further reduced compared to when it is most open (position shown in FIG. 1), making it possible to suppress the spread of droplets while collecting light and ventilating.

In this embodiment, the partition member 10 is described as switching between a transparent state and a non-transparent state by moving the shielding body 21 in the horizontal direction (x direction), but the present invention is not limited to this, and the partition member may be configured to switch between a transparent state and a non-transparent state by moving the shielding body in the vertical direction (y direction). Alternatively, the partition member may be configured so that the transparent state and the non-transparent state can be switched by moving the shielding body in either the horizontal direction or the vertical direction.

14 is a diagram for explaining a partition member 50 according to another embodiment. FIG. 14 is a view taken from the same perspective as FIG.
The partition member 50 also includes a frame 11 and two shielding bodies 21 arranged within a frame defined by the frame body 11. However, unlike the partition member 10, in this embodiment, the frame body 11 is formed in a circular ring shape, and the shielding bodies 21 are disk-shaped to correspond to this. In this embodiment, a plurality of transmitting portions 24 are arranged so as to be aligned in both the radial direction and the circumferential direction from the center of the disk of the light shielding body 21.
In such a partition member 50, the transmitting state and the non-transmitting state are switched by rotating one of the shields 21 around the center of the shield 21 as shown by the arrow C in Fig. 14. Therefore, the transmitting parts 24 of the light shield 21 are arranged so that the transmitting state and the non-transmitting state can be switched by rotating in the circumferential direction, and the concept is the same as that of the partition member 10 described above.

In this disclosure, "antibacterial" refers to a property that reduces the pathogenicity of either or both of bacteria and fungi. Specifically, it refers to a property that kills or damages either or both of bacteria and fungi, a property that persistently inhibits the growth and proliferation of either or both of bacteria and fungi, or a property that inhibits the infectious or disease-causing ability of either or both of bacteria and fungi through some action or mechanism. Examples of bacteria include Staphylococcus aureus, Escherichia coli, Salmonella enterica, Pseudomonas aeruginosa, Vibrio cholerae, Shigella dysenteriae, Bacillus anthracis, Mycobacterium tuberculosis, Clostridium botulinum, Clostridium tetanus, and Streptococcus. Examples of fungi (or molds) include Trichophyton, Candida, and Aspergillus.

In this disclosure, "antiviral" refers to the property of reducing the pathogenicity of a virus. Specifically, it refers to the property of inactivating a virus by denaturing or damaging the proteins that constitute the virus, viral capsid, or envelope. Examples of viruses include norovirus, influenza virus, adenovirus, coronavirus, measles virus, rubella virus, hepatitis virus, herpes virus, and HIV.

1.3 Anti-pathogen properties of the partition member In addition to the above configuration, the partition member 10 may have anti-pathogen properties, which can suppress the proliferation of microorganisms such as bacteria or viruses that are contained in droplets and adhere to the partition member 10.
Here, anti-pathogenicity means a property of reducing the pathogenicity of microorganisms such as bacteria, mold, amoeba, rickettsia, spirochete, or viruses. Specifically, it means a property of killing or damaging pathogens, inhibiting their proliferation or growth, or suppressing the ability of microorganisms such as bacteria or pathogens such as viruses to infect or cause disease by some action.
In particular, depending on the type of pathogen whose pathogenicity is to be reduced, it is called antiviral if it is targeted at viruses, antibacterial if it is targeted at bacteria, and antifungal (or antifungal) if it is targeted at mold.
In the present disclosure, "antibacterial" refers to a property that reduces the pathogenicity of either or both of bacteria and fungi. Specifically, it refers to a property that kills or damages either or both of bacteria and fungi, or a property that continuously inhibits the growth and proliferation of either or both of bacteria and fungi, or a property that inhibits the infectious or disease-causing ability of either or both of bacteria and fungi by some action or mechanism. Examples of bacteria include Staphylococcus aureus, Escherichia coli, Salmonella enterica, Pseudomonas aeruginosa, Vibrio cholerae, Shigella dysenteriae, Bacillus anthracis, Mycobacterium tuberculosis, Clostridium botulinum, Clostridium tetanus, and Streptococcus. Examples of fungi (or molds) include Trichophyton, Candida, and Aspergillus.
In the present disclosure, "antiviral" refers to the property of reducing the pathogenicity of a virus. Specifically, it refers to the property of inactivating a virus by denaturing or damaging the proteins that constitute the virus, the viral capsid, or the viral envelope. Examples of viruses include norovirus, influenza virus, adenovirus, coronavirus, measles virus, rubella virus, hepatitis virus, herpes virus, and HIV.
Regarding "anti-pathogen properties," it is difficult to uniformly define the effectiveness of a drug for this purpose, because even the same type of bacteria or other microorganisms or viruses differ depending on the individual type (strength of toxicity, strength of infectivity, etc.), it also depends on the environment such as temperature and humidity, which bacteria or other microorganisms or viruses the product actually inhibits depend on which bacteria or other microorganisms or viruses fly in, and which bacteria or other microorganisms or viruses the product actually inhibits are at the discretion of the user. Therefore, here, "anti-pathogen properties" are represented by viruses, and are evaluated using the anti-viral activity value described below. Then, the type of anti-pathogen material that exhibits effective anti-pathogen properties against a specific pathogen, as well as its content and amount of addition, are selected according to each specific application and the target pathogen.

The partition member 10, which has anti-pathogenic properties, can be endowed with the function of reducing troubles caused by microorganisms such as bacteria and viruses. For this reason, anti-pathogenic properties are imparted to at least a partial area on the surface of the partition member 10 that comes into contact with the outside world. From the viewpoint of expressing anti-pathogenic properties, it is preferable to impart anti-pathogenic properties to the entire area on the surface of the partition member 10 that comes into contact with the outside world.

In order to impart anti-pathogen properties to the surface of the partition member 10 that comes into contact with the outside world, either of the following forms (A) or (B) can be used.

(A) An anti-pathogen agent-containing layer is laminated on at least one area, preferably the entire area, of the surface of the frame 11, shield 21, and other components (e.g., handles, frames, etc.) that are provided as necessary and that are in contact with the outside world, which constitutes the partition member 10. The surface of the shield 21 that is in contact with the outside world also includes the surface facing the hollow transparent section 24. In addition, when the frame 11, shield 21, and other components (e.g., handles, frames, etc.) that are provided as necessary are composed of a substrate 22 or a laminate of the substrate 22 and decorative material 23, an anti-pathogen agent-containing layer is laminated on the surface of the outermost layer of the substrate 22 or decorative material 23 that is in direct contact with the outside world.

(B) An anti-pathogen agent is contained in at least one region, preferably the entire region, of the frame 11 (horizontal frame 12, vertical frame 13), shield 12 (including the surface facing the hollow light-transmitting portion 24) constituting the partition member 10, and other components provided as necessary (e.g., handles, frames, etc.). Since microorganisms such as bacteria and viruses adhere to the surfaces of these components from the outside world, at least a portion of the contained anti-pathogen agent is contained so as to be present on or near the surfaces of these components. In addition, when the frame 11, shield 21, and other components provided as necessary are composed of a substrate 22 or a laminate of the substrate 22 and decorative material 23, the anti-pathogen agent is contained inside the outermost layer of the substrate 22 or decorative material 23 that is in direct contact with the outside world.

Here, the anti-pathogenic agent refers to a substance that reduces the pathogenicity of microorganisms such as bacteria, mold, amoeba, rickettsia, spirochete, etc., or viruses. Specifically, it refers to a substance that kills or damages pathogens, inhibits their proliferation or growth, or inhibits the ability of microorganisms such as bacteria, viruses, etc., to infect or cause disease through some other action.
In particular, depending on the type of pathogen whose pathogenicity is to be reduced, they are called antiviral agents targeting viruses, antibacterial agents targeting bacteria, antifungal agents (or antifungal agents) targeting mold, etc.
The term "antiviral" means that the antiviral activity value A ^AV measured and evaluated by the following method based on the method in accordance with ISO21702 is A ^AV > 0.0. Preferably, A ^AV ≧ 1.0, and more preferably A ^AV ≧ 2.0.

The antiviral activity value is measured in accordance with ISO21702 as follows.
0.4 ml of virus liquid is dropped onto a 5 cm square test piece (antiviral treated product and non-treated product) and covered with a 4 cm square film. The test piece is left to stand at 25°C for 24 hours, after which the virus on the test piece is washed off and collected, and the virus infectivity is measured. The antiviral activity value A ^AV is calculated using the following formula (1).
A ^AV =Ut-At (1)
Here, ^AAV is the antiviral activity value, Ut is the average common logarithm of the viral infectivity (PFU/ ^cm2 ) of untreated products after standing for 24 hours, and At is the average common logarithm of the viral infectivity (PFU/ ^cm2 ) of antiviral treated products after standing for 24 hours.
In addition, the antiviral agent may also neutralize other microorganisms such as bacteria and molds after neutralizing the virus. Rather, this is preferable in that it can neutralize all microorganisms that may be pathogenic.
The antibacterial properties are evaluated in accordance with ISO 22196 (JIS Z 2801).

By adopting the above-mentioned form (A) or (B), it is possible to reduce the number of viruses that reach the surface of the partition member 10 by being captured, attached, or spontaneously penetrating the surface, thereby reducing problems such as human and animal infections and disease caused by viruses. If antibacterial and antifungal properties are also expressed at the same time as the antiviral properties are expressed, it is also possible to use the partition member 10 as an antibacterial partition member 10 and an antifungal partition member 10, etc., and it is possible to neutralize the pathogenicity of multiple types of microorganisms that reach the surface of the partition member 10.

In general, even for articles made of the same material and layer structure, the correlation between the performance of the anti-pathogen properties exhibited for each target pathogen, typically "antiviral," "antibacterial," and "antifungal," may or may not be effective depending on the type of virus, bacteria, or mold targeted, the environmental conditions, the required level of antiviral, antibacterial, or antifungal properties, etc. For this reason, depending on the type of bacteria, the environmental conditions, and the required level of antibacterial properties, it may be possible to apply it not only for antiviral purposes but also for antibacterial purposes. Note that since mold is a type of fungus, the partition member 10 may also be applicable to antifungal purposes depending on the type of mold, the environmental conditions, and the required level of antifungal properties.

The antiviral agent-containing layer shown in (A) above can be configured as a layer that contains the antiviral agent throughout the antiviral agent-containing layer, a layer that contains the antiviral agent on the surface side of the antiviral agent-containing layer in both the thickness direction and the in-plane direction, a layer that contains the antiviral agent on the surface side and back side of the antiviral agent-containing layer, a layer that contains the antiviral agent in a partial region in the in-plane direction on the surface side of the antiviral agent-containing layer, or a layer that contains the viral agent in a partial region on the surface side of the antiviral agent-containing layer and in a partial region on the back side of the antiviral agent-containing layer.
In the antiviral agent-containing layer, the location where the antiviral agent is present is not particularly limited. However, from the viewpoint of enhancing antiviral properties, it is preferable that the antiviral agent is contained in at least a part of the region near the exposed surface of the antiviral agent-containing layer.

In this specification, the surface where the antiviral agent-containing layer is exposed refers to the surface where the planar direction of the antiviral agent-containing layer is exposed. Also, in this specification, the vicinity of the surface where the antiviral agent-containing layer is exposed refers to the region within the range where the antiviral agent is contained in the thickness direction from the surface where the antiviral agent is exposed.
That is, when a radioactive compound (antiviral agent) described later is used as the antiviral agent, the antiviral agent can be exhibited even in a form in which the antiviral agent is absent on the surface of the antiviral agent-containing layer and is present only inside the layer. However, in a form in which other antiviral agents are used, the part in the antiviral agent-containing layer that certainly exhibits antiviral properties is the part where the antiviral agent is exposed to the outside from the antiviral agent-containing layer. Therefore, at the very least, it is sufficient that the minimum unit consisting of particles, atoms (including ionized ones), or molecules of the antiviral agent exists on the surface of the antiviral agent-containing layer in one or more layers. For example, when the antiviral agent uses atoms or molecules as the minimum unit, it is sufficient that a monoatomic layer or monomolecular layer exists, and when the antiviral agent uses particles consisting of a plurality of atoms or molecules as the minimum unit, it is sufficient that only a monoparticle layer exists.
However, in reality, when an antiviral agent is formed in an antiviral agent-containing layer as a monoatomic layer, a monomolecular layer, or a monoparticle layer, in addition to the difficulty in manufacturing technology, the antiviral agent is easily removed or lost due to external forces such as friction, and the antiviral function is easily lost. In addition, some viruses may invade the inside of the antiviral agent-containing layer through gaps between the antiviral agent and the binder resin, etc.
Furthermore, the antiviral agent may have the property of migrating (bleeding) from the inside of the antiviral agent-containing layer toward the surface over time. In such a case, the atoms, molecules, or particles of the antiviral agent are configured to be present in two or more layers on the surface of the antiviral agent-containing layer, or the antiviral agent is configured to be contained from the surface of the antiviral agent-containing layer 10 to the inside of the layer, and a part of the antiviral agent is exposed from the surface of the antiviral agent-containing layer. With such a configuration, the antiviral agent exposed on the surface layer exhibits antiviral properties, and the antiviral agent that has fallen off or disappeared from the surface of the antiviral agent-containing layer over time is complemented by the antiviral agent that has migrated from the inside, so that it is expected that the decrease in antiviral function over time can be suppressed.
Therefore, in reality, the antiviral agent-containing layer is configured to contain atoms, molecules, or particles of the antiviral agent distributed from the surface to a depth of a predetermined thickness. Such a region containing atoms, etc. of the antiviral agent distributed from the surface of the antiviral agent-containing layer to a depth of a predetermined thickness is referred to as the "surface vicinity where the antiviral agent-containing layer is exposed."
Therefore, the thickness range of the "surface vicinity" may be appropriately designed depending on the type of antiviral agent used, the method for forming or producing the antiviral agent-containing layer in the antiviral partition member 10, the application of the antiviral partition device, the durability of the antiviral agent-containing layer against friction, etc. A typical thickness of the surface vicinity of the antiviral agent-containing layer is preferably in the range of 1 μm or more and 5000 μm or less (however, not exceeding the thickness of the antiviral agent-containing layer), and in the case of normal applications, required durability, and the method for forming or producing the antiviral agent-containing layer, a range of 3 μm or more and 100 μm or less is more preferable.

When the antiviral agent-containing layer consists of a single layer, the partition member 10 can be produced by the following methods (a1) and (a2), etc. When an organic antiviral agent is used, the method (a2) is preferred because it makes it easier to maintain the function of the antiviral agent by eliminating the influence of the action of heat and the like during molding.
(a1) A composition containing a resin (i.e., binder resin) constituting the base material 22 or the decorative material 23 and an antiviral agent is molded by melt extrusion, injection molding, or the like. The partition member 10 is manufactured from such a base material 22 or decorative material 23.
(a2) After preparing a substrate 22 or decorative material 23 consisting of a resin layer containing an antiviral agent on a releasable support, the releasable support is peeled off from the laminate to obtain a single-layer frame 11 or shielding body 21 consisting of the substrate 22 or decorative material 23.

The antiviral agent-containing layer may be formed on the entire surface of one side of the substrate 22, the decorative material 23, or the laminate of both, may be formed on the entire surface of both sides of the substrate 22, the decorative material 23, or the laminate of both, may be formed in a partial area of one side of the substrate 22, the decorative material 23, or the laminate of both, may be formed in a partial area of one side of the substrate 22, the decorative material 23, or the laminate of both, and may be formed in a partial area of the other side of the substrate 22, the decorative material 23, or the laminate of both.

The antiviral agent-containing layer may be formed on the entire surface of the substrate 22, the decorative material 23, or the laminate of both, or may be formed on a portion of the substrate 22, the decorative material 23, or the laminate of both. The antiviral agent-containing layer may be formed on only one surface of the substrate 22, the decorative material 23, or the laminate of both, or may be formed on both surfaces of the substrate 22, the decorative material 23, or the laminate of both.

The partition member 10 having the substrate 22, the decorative material 23, or a laminate of both and an antiviral agent-containing layer can be manufactured, for example, by the following methods (b1) to (b4). When an organic antiviral agent is used, the method (b1) or (b4) is preferred in order to make it easier to maintain the function of the antiviral agent by eliminating the effect of heat during lamination of the antiviral agent-containing layer.

(b1) A composition containing a binder resin and an antiviral agent is applied onto the base material 22, the decorative material 23, or a laminate of both, to form an antiviral agent-containing layer as a coating film, or a sheet formed from the same composition is laminated (bonded) with an adhesive layer interposed therebetween, as necessary.
(b2) A composition containing a binder resin and an antiviral agent is melt-extruded onto the substrate 22, the decorative material 23, or a laminate of both, to form an antiviral agent-containing layer.
(b3) The substrate 22, the decorative material 23, or a laminate of both, and the antiviral agent-containing layer are heated and fused (fused).
(b4) A laminate is produced by forming an antiviral agent-containing layer on a releasable support. The surface of the laminate on which the antiviral agent-containing layer is formed is brought into close contact with substrate 22, decorative material 23, or a laminate of both, and then the releasable support is peeled off.

The partition member 10 having the base material 22, the decorative material 23, or a laminate of both, and the antiviral agent-containing layer may have an adhesive layer, a second base material, a primer layer for improving adhesion, a pattern ink layer for improving design, a decorative layer made of a metal thin film, etc., between the base material 22, the decorative material 23, or the laminate of both, and the antiviral agent-containing layer 10.

The antiviral agent-containing layer must contain an antiviral agent. The antiviral agent-containing layer preferably contains an antiviral agent and a binder resin.

Representative examples of the antiviral agent include "antiviral agents comprising a carrier carrying or containing a metal ion", "particles of an imidazole compound", "particles containing a styrene polymer derivative compound and an unsaturated carboxylic acid derivative compound", "copper-based antiviral agents", "zinc-based antiviral agents", and "radioactive compounds".
Hereinafter, the "antiviral agent comprising a carrier carrying or containing a metal ion" may be referred to as "antiviral agent 1," the "particles of imidazole compound" may be referred to as "antiviral agent 2," the "particles containing a styrene polymer derivative compound and an unsaturated carboxylic acid derivative compound" may be referred to as "antiviral agent 3," the "copper-based antiviral agent" may be referred to as "antiviral agent 4," the "zinc-based antiviral agent" may be referred to as "antiviral agent 5," and the "radioactive compound" may be referred to as "antiviral agent 6."

From the viewpoint of enhancing antiviral properties, it is preferable that the antiviral agent is present in at least a portion of the area near the surface where the antiviral agent-containing layer is exposed. The above configuration can be easily achieved by increasing the content of the antiviral agent or adjusting the specific gravity of the antiviral agent and the binder resin.

Even if the antiviral agent is embedded in the antiviral agent-containing layer, it can exhibit antiviral properties due to the action described below.
For example, antiviral properties can be exhibited by the presence of a substance having antiviral properties on or near the surface of the antiviral agent-containing layer, such as when an atom or ion, compound molecule, etc. having antiviral properties, such as silver ions, is liberated from the antiviral agent, or when the antiviral agent itself bleeds from the inside of the antiviral agent-containing layer to the surface, etc. In addition, when the antiviral agent is a radioactive compound, virus-killing radiation, such as α-rays or β-rays, is radiated to the surface of the antiviral agent-containing layer, so that the antiviral properties can be exhibited.
Alternatively, viruses may penetrate (or invade) from the surface of the antiviral agent-containing layer to the interior near the surface through gaps at the interface between the antiviral agent and the binder resin, cracks in the antiviral agent-containing layer itself, fine voids such as a porous structure, and come into contact with the antiviral agent inside the antiviral agent-containing layer. In such cases, the antiviral agent inside the antiviral agent-containing layer may exhibit sufficient antiviral properties.

Antiviral agent 1 is an antiviral agent comprising a carrier carrying or containing a metal ion. The metal ion of antiviral agent 1 is preferably either silver or zinc, and more preferably contains both silver and zinc in order to inhibit discoloration and reduce costs.
Silver has better antiviral properties than zinc, but it is expensive and easily discolors due to oxidation. On the other hand, zinc can suppress discoloration due to oxidation of silver. Therefore, by including both silver and zinc, discoloration can be suppressed and costs can be reduced.
As the carrier for the antiviral agent 1, inorganic compounds such as zeolite, apatite, glass, molybdenum, zirconium phosphate, and titanium phosphate are preferred, and among them, porous inorganic compounds are preferred.

Zeolite is an aluminosilicate of an alkali metal or an alkaline earth metal, and both natural and synthetic zeolites can be used. Zeolites are classified into A-type, faujasite type (X-type, Y-type), mordenite type, clinoptilolite type, etc., according to their crystal structures, and any of them can be used.
Apatite is a general term for minerals having a composition represented by the following general formula.
M ₁₀ (ZO ₄ ) ₃ X ₂
In the above formula, M represents Ca, Ba, Mg, Na, K, Fe, Al, etc., Z represents P, S, Si, As, etc., and X represents F, Cl, O, _OH , etc. Representative examples that fall into the above formula include fluorapatite " _Ca10 ( _PO4 ) _6F2 " and hydroxyapatite " _Ca10 ( _PO4 ) ₆ (OH) ₂ ".

Examples of glass include soda glass, borosilicate glass, lead glass, aluminosilicate glass, borate glass, and phosphate glass.

As a method for supporting or containing metal ions in a carrier, a known method may be appropriately selected taking into consideration the form and processing conditions of the antiviral agent-containing layer, the required level of antiviral activity, etc. Here, "containing metal ions" means that metal ions or a substance capable of generating metal ions is held in a carrier in some form. In addition, "substance capable of generating metal ions" means a substance that generates metal ions due to an external factor or a factor over time, such as a substance that generates metal ions by dissolving in water, etc.
Specific examples of the supported or inclusive form include a method of supporting by physical or chemical adsorption; a method of supporting by an ion exchange reaction; a method of supporting by a binder; a method of inclusion by implanting a silver compound into a support; a method of supporting or inclusion by forming a thin layer of a silver compound on the surface of a support by a thin film formation method such as vapor deposition, dissolution-precipitation reaction, or sputtering; and a method of ion exchanging a metal oxide such as glass at high temperature.

The antiviral agent 1 is preferably in particulate form.
The shape of the particles of the antiviral agent 1 is not particularly limited, and may be, for example, a sphere, an ellipsoid, a polyhedron, or a scale shape.

The average particle size of the antiviral agent 1 is preferably 0.1 μm or more and 10.0 μm or less, more preferably 0.5 μm or more and 5.0 μm or less, and even more preferably 1.0 μm or more and 4.0 μm or less.
By setting the average particle size to 0.1 µm or more, it becomes easier to obtain stability of the ink containing the antiviral agent 1. Furthermore, by setting the average particle size to 10.0 µm or less, it becomes easier to suppress poor appearance, deterioration in scratch resistance and stain resistance, and whitening of the coating film, and further, it becomes easier to suppress wear of the members of the coating device (such as a coating roll and a doctor blade).

When the average particle size of the antiviral agent 1 is defined as D1 and the thickness of the antiviral agent-containing layer is defined as T, D1/T is preferably 1.0 or less, more preferably 0.7 or less, and even more preferably 0.5 or less.
By making D1/T 1.0 or less, it is possible to easily suppress the decrease in stain resistance and whitening of the coating film, and further to easily suppress the wear of the members of the coating device (coating roll, doctor blade, etc.).

In this specification, the average particle size refers to the mass average value d50 measured in particle size distribution measurement using the laser light diffraction method.

The amount of metal ions in the antiviral agent 1 is preferably 0.1 parts by mass or more and 30.0 parts by mass or less, more preferably 0.5 parts by mass or more and 25.0 parts by mass or less, and even more preferably 1.0 parts by mass or more and 20.0 parts by mass or less, relative to 100 parts by mass of the carrier. Here, the "amount of metal ions" refers to both the supported metal ions and the contained metal ions.
By setting the amount of metal ions to 0.1 parts by mass or more, it is possible to easily improve antiviral properties, and by setting the amount of metal ions to 30.0 parts by mass or less, it is possible to easily suppress discoloration due to light.

The content of the antiviral agent 1 is preferably 0.1 parts by mass or more and 20.0 parts by mass or less, more preferably 0.5 parts by mass or more and 17.0 parts by mass or less, and even more preferably 1.0 parts by mass or more and 15.0 parts by mass or less, relative to 100 parts by mass of the binder resin.
By setting the content of antiviral agent 1 to 0.1 parts by mass or more, it is possible to easily achieve good antiviral properties.
By setting the content of the antiviral agent 1 to 20.0 parts by mass or less, discoloration due to light can be easily suppressed. In addition, by setting the content of the antiviral agent 1 to 20.0 parts by mass or less, deterioration of coating film properties such as coating film strength and scratch resistance can be suppressed. Furthermore, by setting the content of the antiviral agent 1 to 20.0 parts by mass or less, deterioration of contamination resistance and whitening of the coating film can be easily suppressed, and further, wear of coating device members (coating roll, doctor blade, etc.) can be easily suppressed.
When the binder resin is a cured product of a curable resin composition, the content of the antiviral agent 1 is preferably set to be somewhat higher within the above range.

Antiviral agent 2 is particles of an imidazole compound.
Usually, the imidazole compound is dissolved in the ink containing the imidazole compound. The reason for this is to diffuse the imidazole compound uniformly in any layer, so that the effect of the imidazole compound is exerted throughout the layer. Therefore, when the imidazole compound is used in a normal manner, the imidazole compound does not exist in the form of particles in the antiviral agent-containing layer. That is, the present embodiment is characterized in that the imidazole compound maintains the form of particles.

An imidazole compound is a compound that contains an imidazole skeleton as a structural unit of the molecule. In this embodiment, various imidazole compounds that maintain the particle shape in the antiviral agent-containing layer can be used. As such an imidazole compound, one that is difficult to dissolve in water and organic solvents is preferable, and examples thereof include methyl benzimidazol-2-ylcarbamate (also known as carbendazim) and polymerized imidazole compounds.
However, care should be taken because even methyl benzimidazol-2-yl carbamate (also known as carbendazim) and polymerized imidazole compounds may dissolve in certain solvents. For example, it is preferable to use methyl ethyl ketone, ethyl acetate, etc. as a solvent for methyl benzimidazol-2-yl carbamate (also known as carbendazim).

The shape of the antiviral agent 2 is not particularly limited, and examples include a sphere, an ellipsoid, a polyhedron, a scale shape, etc.

The average particle size of the antiviral agent 2 is preferably 0.1 μm or more and 10.0 μm or less, more preferably 0.2 μm or more and 8.0 μm or less, and even more preferably 0.3 μm or more and 7.0 μm or less.
By setting the average particle size to 0.1 µm or more, it becomes easier to obtain stability of the ink containing the antiviral agent 2. Furthermore, by setting the average particle size to 10.0 µm or less, it becomes easier to suppress poor appearance, deterioration of scratch resistance and stain resistance, and whitening of the coating film.
The content of the antiviral agent 2 is preferably 0.5 parts by mass or more and 20.0 parts by mass or less, more preferably 1.0 parts by mass or more and 13.0 parts by mass or less, and even more preferably 3.0 parts by mass or more and 10.0 parts by mass or less, relative to 100 parts by mass of the binder resin.
By setting the content of the antiviral agent 2 to 0.5 parts by mass or more, it is possible to easily achieve good antiviral properties.
By setting the content of the antiviral agent 2 to 20.0 parts by mass or less, it is possible to suppress a decrease in the coating film physical properties such as the coating film strength and scratch resistance. Furthermore, by setting the content of the antiviral agent 2 to 20.0 parts by mass or less, it is possible to easily suppress a decrease in contamination resistance and whitening of the coating film.

The preferred range of the ratio D2/T of the average particle diameter D2 of the antiviral agent 2 to the thickness T of the antiviral agent-containing layer and the preferred effects based thereon are the same as those of the antiviral agent 1.

The antiviral agent 3 is a particle containing a styrene polymer derivative compound and an unsaturated carboxylic acid derivative compound.

In this specification, "particles containing a styrene polymer derivative compound and an unsaturated carboxylic acid derivative compound" may be "particles containing a styrene polymer derivative compound and an unsaturated carboxylic acid derivative compound", or may be "mixed particles of particles containing a styrene polymer derivative compound and particles containing an unsaturated carboxylic acid derivative compound", or may be a combination of these.

The antiviral agent 3 contains a styrene polymer derivative compound and an unsaturated carboxylic acid derivative compound. The components of the styrene polymer derivative compound and the unsaturated carboxylic acid derivative compound preferably have at least one structure selected from the group consisting of styrene, sodium sulfonate, acrylic acid, maleic acid, and fumaric acid, and more preferably have both at least one structure of styrene and sodium sulfonate, and at least one structure selected from the group consisting of acrylic acid, maleic acid, and fumaric acid.

The content ratio of the styrene polymer derivative compound and the unsaturated carboxylic acid derivative compound in the antiviral agent 3 is not limited, but the mass ratio is preferably 30:70 to 70:30, and more preferably 40:60 to 60:40.
When the antiviral agent 3 is a mixture of particles (particles A) containing a styrene polymer derivative compound and particles (particles B) containing an unsaturated carboxylic acid derivative compound, the mass ratio of particles A to particles B is preferably 30:70 to 70:30, and more preferably 40:60 to 60:40.

The reason why antiviral agent 3 exhibits antiviral activity is thought to be as follows, although it is not limited to the mechanism speculated below.
Influenza viruses invade host cells by binding to sugar chain receptors (the sugar chain ends in neuraminic acid) on the surface of the host cells, but since the copolymer containing styrene sulfonate has an ionic group similar to that of neuraminic acid, it is believed that it binds to the virus instead of the host cell, captures the virus, and prevents the virus from binding to the host cell receptor, thereby exerting an antiviral effect. In addition, the unsaturated carboxylic acid derivative compound generates a hydroxyl group (OH ^- ) when it comes into contact with moisture, and the hydroxyl group is believed to exert an antiviral effect.

The shape of the antiviral agent 3 is not particularly limited, and examples include a sphere, an ellipsoid, a polyhedron, a scale shape, etc.

The average particle size of the antiviral agent 3 is preferably 0.1 μm or more and 10.0 μm or less, more preferably 0.2 μm or more and 8.0 μm or less, and even more preferably 0.5 μm or more and 7.0 μm or less.
By setting the average particle size to 0.1 µm or more, it becomes easier to obtain stability of the ink containing the antiviral agent 3. Furthermore, by setting the average particle size to 10.0 µm or less, it becomes easier to suppress poor appearance, deterioration of scratch resistance and stain resistance, and whitening of the coating film.

The content of the antiviral agent 3 is preferably 0.5 parts by mass or more and 20.0 parts by mass or less, more preferably 0.5 parts by mass or more and 19.0 parts by mass or less, even more preferably 1.0 parts by mass or more and 17.0 parts by mass or less, and still more preferably 1.5 parts by mass or more and 15.0 parts by mass or less, relative to 100 parts by mass of the binder resin.
By setting the content of the antiviral agent 3 to 0.5 parts by mass or more, it is possible to easily achieve good antiviral properties.
By setting the content of the antiviral agent 3 to 20.0 parts by mass or less, it is possible to suppress a decrease in the coating film physical properties such as the coating film strength and scratch resistance. Furthermore, by setting the content of the antiviral agent 3 to 20.0 parts by mass or less, it is possible to easily suppress a decrease in contamination resistance and whitening of the coating film.
The suitable range of the ratio D3/T of the average particle diameter D3 of the antiviral agent 3 to the thickness T of the antiviral agent-containing layer and the effects based thereon are similar to those of the antiviral agent 1.

Antiviral agent 4 is a copper-based antiviral agent, and antiviral agent 5 is a zinc-based antiviral agent.
Examples of copper-based antiviral agents include cuprous oxide particles described in Japanese Patent No. 6145758 and copper iodide particles described in WO2010/026730.
Examples of zinc-based antiviral agents include the zinc-based inorganic additives described in Japanese Patent No. 6229429.

Antiviral agent 6 is a radioactive compound.
In order to prevent adverse effects of radiation on health, radioactive compounds that radiate either or both of α-rays and β-rays, which have a relatively small flight distance in air or vacuum and a relatively small penetration through various materials, are preferred. In addition, it is preferable that the radioactive compound radiates α-rays and/or β-rays with sufficient energy (quantum) to kill viruses and emits a small amount of radiation such as γ-rays, which have a high material penetration.

Radioactive compounds that emit alpha rays include 241Am, 243Am, 226Ra, 232Th, etc. Radioactive compounds that emit beta rays include 147Pm, 210Po, 90Sr, 90Y, etc.

Examples of binder resins include thermoplastic resins and cured products of curable resin compositions. Thermoplastic resins and cured products of curable resin compositions may be mixed.

Examples of thermoplastic resins include olefin resins such as polyethylene, polypropylene, polymethylpentene, ionomers, and various olefin-based thermoplastic elastomers; vinyl chloride resins such as polyvinyl chloride, polyvinylidene chloride, and vinyl chloride-vinyl acetate copolymers; polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, ethylene glycol-terephthalic acid-isophthalic acid copolymers, and polyester-based thermoplastic elastomers; acrylic resins such as polymethyl (meth)acrylate, polyethyl (meth)acrylate, polybutyl (meth)acrylate, and methyl (meth)acrylate-butyl (meth)acrylate copolymers; polyamide resins such as nylon 6 or nylon 66; cellulose resins such as cellulose triacetate, cellophane, and celluloid; styrene resins such as polystyrene, acrylonitrile-styrene copolymer, and acrylonitrile-butadiene-styrene copolymer (ABS); polyvinyl alcohol; ethylene-vinyl acetate copolymer; ethylene-vinyl alcohol copolymer; polycarbonate resin; urethane resin; polyarylate resin; polyimide resin; and the like. Of these, acrylic resins are preferred.

Examples of the cured product of the curable resin composition include a cured product of a heat-curable resin composition or a cured product of an ionizing radiation-curable resin composition, and among these, a cured product of an ionizing radiation-curable resin composition is preferred from the viewpoints of scratch resistance and production efficiency.

The thermosetting resin composition is a composition that contains at least a thermosetting resin, and is a resin composition that is cured by heating.
Examples of the thermosetting resin include acrylic resin, urethane resin, phenol resin, urea melamine resin, epoxy resin, unsaturated polyester resin, silicone resin, etc. In addition to these thermosetting resins, a curing agent, a curing catalyst, etc. are added to the thermosetting resin composition as necessary.

Representative examples of ionizing radiation curable resin compositions include electron beam curable resin compositions and ultraviolet ray curable resin compositions. Among these, electron beam curable resin compositions are preferred from the viewpoints of having less odor and being less prone to coloration because a polymerization initiator is not required. In addition, when the antiviral agent-containing layer contains an ultraviolet ray absorber described below, electron beam curable resin compositions are preferred in that they tend to increase the crosslink density of the antiviral agent-containing layer and tend to improve scratch resistance and contamination resistance.

The ionizing radiation curable resin composition is a composition containing a compound having an ionizing radiation curable functional group (hereinafter also referred to as an "ionizing radiation curable compound").
The ionizing radiation-curable functional group is a group that is crosslinked and cured by irradiation with ionizing radiation, and preferred examples thereof include functional groups having an ethylenic double bond such as a (meth)acryloyl group, a vinyl group, an allyl group, etc. Further examples of the ionizing radiation-curable functional group include an epoxy group and an oxetanyl group.
In this specification, the term "(meth)acryloyl group" refers to an acryloyl group or a methacryloyl group, and the term "(meth)acrylate" refers to an acrylate or a methacrylate.
In addition, ionizing radiation refers to electromagnetic waves or charged particle beams that have an energy quantum capable of polymerizing or crosslinking molecules. Usually, ultraviolet rays (UV) or electron beams (EB) are used, but other examples include electromagnetic waves such as X-rays and gamma rays, and charged particle beams such as alpha rays and ion beams.
Specifically, the ionizing radiation curable compound can be appropriately selected from polymerizable monomers and polymerizable oligomers (sometimes referred to as "polymerizable prepolymers") that have been conventionally used as ionizing radiation curable resins.

The ionizing radiation curable compound is preferably a compound having two or more ethylenically unsaturated bond groups, and more preferably a polyfunctional (meth)acrylate compound having two or more ethylenically unsaturated bond groups. As the polyfunctional (meth)acrylate compound, either a monomer or an oligomer can be used.

Among the polyfunctional (meth)acrylate compounds, examples of bifunctional (meth)acrylate monomers include ethylene glycol di(meth)acrylate, bisphenol A tetraethoxydiacrylate, bisphenol A tetrapropoxydiacrylate, and 1,6-hexanediol diacrylate.
Examples of trifunctional or higher (meth)acrylate monomers include trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol tetra(meth)acrylate, and isocyanuric acid-modified tri(meth)acrylate.
Examples of the polyfunctional (meth)acrylate oligomer include acrylate polymers such as urethane (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, and polyether (meth)acrylate.

Urethane (meth)acrylates can be obtained, for example, by reacting polyhydric alcohols and organic diisocyanates with hydroxy (meth)acrylates.

Preferred epoxy (meth)acrylates are (meth)acrylates obtained by reacting trifunctional or higher aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins, etc. with (meth)acrylic acid, (meth)acrylates obtained by reacting difunctional or higher aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins, etc. with polybasic acids and (meth)acrylic acid, and (meth)acrylates obtained by reacting difunctional or higher aromatic epoxy resins, alicyclic epoxy resins, aliphatic epoxy resins, etc. with phenols and (meth)acrylic acid.

The above ionizing radiation curable resins can be used alone or in combination of two or more.

When the ionizing radiation curable compound is an ultraviolet ray curable compound, the ionizing radiation curable resin composition preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator.
The photopolymerization initiator may be one or more selected from acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzyl dimethyl ketal, benzoyl benzoate, α-acyloxime ester, thioxanthones, and the like.
The photopolymerization accelerator can reduce polymerization inhibition caused by air during curing and increase the curing speed, and examples of the accelerator include one or more types selected from p-dimethylaminobenzoic acid isoamyl ester, p-dimethylaminobenzoic acid ethyl ester, and the like.

The antiviral agent-containing layer may contain additives such as antioxidants, light stabilizers, UV absorbers, matting agents, and colorants.

The thickness of the antiviral agent-containing layer can be, for example, from 1.0 μm to 10,000 μm (1 cm) from the viewpoint of a balance between processing characteristics and scratch resistance.
When the antiviral partition member 10 is constructed from a single layer of an antiviral agent-containing layer, the thickness of the antiviral agent-containing layer is preferably made thicker. In the case of a single layer, the thickness of the antiviral agent-containing layer is preferably 1.0 μm or more and 10,000 μm or less, and more preferably 10 μm or more and 5,000 μm or less.
On the other hand, when the partition member 10 has a base material 22, a decorative material 23, or both, taking into consideration that the base material is responsible for self-supporting properties and durability against external forces, that the antiviral effect is saturated at a certain thickness or more, and that the processability decreases as the thickness of the antiviral agent-containing layer increases, the thickness of the antiviral agent-containing layer is preferably a thin film. When the partition member 10 has a base material, the thickness of the antiviral agent-containing layer is preferably 1.5 μm or more and 30 μm or less, more preferably 2 μm or more and 20 μm or less, and even more preferably 3 μm or more and 15 μm or less, from the viewpoint of the balance between processability and scratch resistance.

From the viewpoint of ease of handling, the partition member is preferably configured to have an antiviral agent-containing layer on the substrate 22, with the decorative material 2 interposed therebetween as necessary. In addition, the antiviral partition member 10 having an antiviral agent-containing layer on the substrate 22 may further have other layers such as an adhesive layer and a decorative layer.

2. Partition device The partition device is a device that includes at least one of the above-mentioned partition members and is configured to partition a space with a plurality of members. Examples of components other than the partition member include partition plates and walls. For convenience, components other than the partition member are referred to as "partition elements" herein.

There are no particular limitations on the partition element, and any known partition element can be used as long as it can divide a space into one side and the other side, whether indoors or outdoors. Examples include partition panels, doors, shoji screens, screen doors, windows, walls, fences, gates, etc.

The partition device can be installed in any type of building, vehicle, or facility, and can be used in any type of building. Examples of buildings include homes, offices, hospitals, stores, large commercial facilities, and other buildings. Examples of vehicles include automobiles, railroad cars, ships, aircraft, and spacecraft.

For example, examples include partitions between the indoor and outdoor spaces of a building, partitions between the inside and outside of a vehicle, partitions between adjacent indoor spaces, partitions within indoor spaces such as partitions placed inside buildings or vehicles, partitions for spaces installed outdoors (partitioned spaces such as smoking booths or multi-purpose booths), and partitions in outdoor spaces such as balconies and fences.

As described above, the partition device can be used in a wide variety of locations and is effective in a variety of places. In other words, in the space partitioned by the partition device, the transmission of light, air, and droplets can be adjusted, and while maintaining good lighting and ventilation, the transmission and diffusion of droplets can be suppressed, or it can be switched to block most of the transmission of light, air, and droplets.

Because partition devices can be used in a variety of locations, it is difficult to list all possible forms. However, for ease of understanding, typical forms of partition devices are listed and explained below. Figure 15 shows a first form example, and Figure 16 shows a second form example.

2.1. First embodiment The partition device 100 according to the first embodiment is an example in which the partition device 100 is applied to one space formed in a house, building, etc. In this embodiment, beams (horizontal members) and columns (vertical members) are combined to form a rectangular parallelepiped framework 1, which forms six frames surrounded by the beams and columns, and the partition device 100 is applied within the frames of four frames 1a to 1d that form the sides of the framework 1 for a structure in which a ceiling board 2 is arranged within the upper frame and a floor material 3 is arranged within the lower frame.

15 is an exploded perspective view illustrating a partition device 100 according to a first embodiment. In the partition device 100 according to this embodiment, two partition members 10, a wall panel (partition element) 101, and a door body (partition element) 102 are arranged horizontally within one frame 1a of four frames.
Within the frame 1b facing the frame 1a, two partition members 10, a window material (partition element) 103, and a wall panel 101 are arranged in the horizontal direction. In this embodiment, the two partition members 10 are arranged so as to face each other.

The two opposing frames 1c and 1d are arranged between frames 1a and 1b, with a partition member 10 arranged in frame 1c and a wall panel (partition element) arranged in frame 1d. In this embodiment, the partition member 10 is arranged on the side of frame 1c, which is closer to the partition member 10 arranged in frame 1a and the partition member 10 arranged in frame 1b. This allows the partition member 10c to be visually recognized as having a sense of unity, which is effective in terms of design and light presentation.

2.2 Second embodiment The partition device 110 according to the second embodiment is an example in which a space is formed surrounded by a plurality of partition members 10 arranged to stand on the floor surface indoors or on the ground surface outdoors. In this embodiment, the partition members 10 are arranged on a plate-shaped base 11, and four of them are arranged at intervals to form a square.
According to the partition device 110, the partitioned space can be used as a space having a predetermined purpose, that is, it can function as a so-called booth. The predetermined purpose can be, for example, a space for a meeting, a space for smoking, an individual work space, etc.

Such a partition device 110 may be installed indoors or outdoors.

2.3. Others In the above-mentioned partition device 100 and partition device 110, multiple partition members 10 are arranged, but the partition device of the present disclosure only needs to be equipped with at least one partition member. This will achieve the desired effect. However, from the viewpoint of achieving a more pronounced effect, it is preferable to arrange multiple partition members. Furthermore, when multiple partition members are arranged, it is preferable that at least two partition members are arranged so as to face each other. This can enhance the ventilation effect.

3. Effects, etc. The partition member of the present disclosure and the partition device including the same provide the following effects.

The transparent portions of the shielding body of the partition member are connected to each other to allow light to pass through and collect light. The shielding body of the partition member is moved to block the openings of the transparent portions to block the light from passing through. At this time, the degree to which the openings of the transparent portions are blocked can be adjusted by adjusting the amount of movement of the shielding body, thereby adjusting the degree to which the openings of the transparent portions are blocked, thereby adjusting the degree of light collection.
When a partition device is provided with a plurality of partition members, in addition to the lighting of each partition member, it is possible to provide a variety of lighting effects within the space by adjusting the positional relationship of the plurality of partition members.
Depending on the size and aperture ratio of the opening of the transparent part, the degree of recognition of the facial expression and presence of a person through the partition member can also be adjusted. This makes it possible to precisely control the sense of distance from people, such as concentrating on one's work while sensing the presence of a person on the other side of the partition member or partition device, and allows one to maintain concentration even when working remotely or from home, to create a semi-private room-like space with a moderate sense of openness in a small area, and to selectively block the scenery on the other side to adjust what is visible (what is shown), allowing different lighting environments to be created even in the same space.

By connecting the transparent parts of the shielding body of the partition member, air can be transmitted through the shielding body of the partition member to create a transparent state, allowing ventilation (aeration). In addition, by moving the shielding body of the partition member to block the opening of the transparent part, it is possible to block the transmission of air and create a non-transparent state. In this case, by adjusting the amount of movement of the shielding body, it is possible to adjust the degree to which the opening of the transparent part is blocked, and thus the degree of ventilation (aeration) can be adjusted.
When the partition device is provided with a plurality of partition members, it becomes easier to control the flow of air into the space and the flow of air out of the space, enabling effective ventilation.

By moving the shield of the partition member to block the opening of the transparent section, it is possible to create a non-transparent state and block the passage of air, thereby preventing droplets generated on one side of the partition member from passing through to the other side.
When the partition member is placed in a position where the transparent portion of the shielding body is connected to allow air to pass through in a transparent state, droplets also pass through, but as a result of intensive research by the inventors, it was found that the partition member of the present disclosure can effectively suppress the transmission of droplets, especially droplets from people generated by conversation, coughing, sneezing, etc., even when the partition member of the present disclosure is in a transparent state. Therefore, the partition member of the present disclosure and the partition device including the partition member can suppress the diffusion of droplets while having light collection, ventilation, and heat insulation properties. This is thought to be because droplets generated by people are relatively large and have a fast movement speed, and such droplets are difficult to pass through the transparent portion of the partition member of the present disclosure.

In addition, sound transmission can be adjusted by adjusting the amount of movement of the partition member's shield to adjust the degree to which the opening of the transmission section is blocked.

Furthermore, by placing an antiviral agent on the partition member, the number of viruses attached to the partition member can be reduced, preventing them from detaching from the partition member and re-floating in the air, further suppressing the spread of the viruses.

4. Example In the example, a test partition device was prepared by forming a tube (shielding tube) from a material (packing cardboard) that blocks light and air as shown in Fig. 17, and arranging test partition members in the openings at both ends of the tube. The opening of this shielding tube was 225 mm wide and 300 mm long (height direction), and the length of the tube (distance between the openings) was 465 mm.
In this example, therefore, two test partition members are arranged opposite each other with a gap (465 mm) between them. Each test partition member is 300 mm long and 225 mm wide.

4.1. Test A
In Test A, various test partition members were installed in a test partition device as examples, and the lighting, ventilation, heat insulation, droplet diffusion suppression, and sound were examined in the first position (the most open position in which the transparent parts of the two shields overlap, the position shown in Figure 1). Also, as comparative examples, examples in which other members were used instead of the test partition members were similarly examined.

4.1a. Configuration of the test partition member used in Examples 1 to 5 The configuration of the test partition member used in Examples 1 to 5 is shown in Table 1. In this example, the opening shape of the transmission part of the test partition member was circular, and θ explained in FIG. 7 was 45°. Therefore, pitch _Px = pitch _Py , and is expressed as pitch P in Table 1. Furthermore, the "total thickness of shielding body (mm)" in Table 1 is the thickness of one shielding body, which is the "thickness of the substrate + the thickness of the decorative material arranged on the front and back of the substrate", multiplied by two to obtain the total thickness of two shielding bodies.

The decorative materials used were polypropylene resin sheets with an adhesive layer and a woodgrain pattern layer printed on them. These decorative materials were attached to both sides of the base material with the adhesive.

When the plate surfaces of the two shields overlap in the thickness direction, the thickness direction distance between the two shields is set to "0 mm."

4.1b. Members used in Comparative Examples 1 to 4 In Comparative Examples 1 to 4, the following members were used instead of the test partition members. The characteristics are shown in Table 2.

In Comparative Example 1, nothing was placed in the position of the test partition member.
In Comparative Example 2, a screen material for a screen door was placed. The screen material was Global Net manufactured by Daio Kasei Co., Ltd., with a mesh size of 1.03 mm, 20 mesh, and an opening rate of 65%. The thickness was 0.36 mm.
In Comparative Example 3, a transparent polyvinyl chloride plate having a thickness of 0.5 mm (Hikari Co., Ltd., EB435-1) was used.
In Comparative Example 4, an aluminum plate having a thickness of 0.5 mm (Hikari Corporation, A1050, HA0534) was used.

4.1c. Test Contents and Test Method The following tests were carried out on each of the above test specimens.

[Light gathering]
As shown in Fig. 18, one of the two test partition members was placed facing south (outdoors), and a thermometer and illuminometer were installed inside the shielding tube. The thermometer and illuminometer were positioned such that the distance from the test partition member facing south to the detection unit was 200 mm, and the height direction was approximately 0 mm (placed on the bottom of the shielding tube). In addition, they were placed in the center of the horizontal direction (225 mm direction) of the shielding tube.
Measurements were made from 10:00 to 14:00 under these conditions, measuring the illuminance at certain times when there was sunlight and at certain times when there was shade. In addition, the temperature was measured at the times when there was sunlight.
In order to standardize the conditions, all of the test partition devices according to Examples 1 to 5 and Comparative Examples 1 to 4 were fabricated and measurements were carried out outdoors at the same time.
The thermometer and illuminometer used were Ondotori TR-74Ui manufactured by T&D Corporation.

[Breathability]
As shown in Fig. 19, wind was blown from the outside to one of the two test partition members using an electric fan (Doshisha Co., Ltd., FIM-102). The electric fan was installed at a position 100 mm horizontally from the test partition member and 50 mm from the lower end of the shielding tube, and the direction of the wind was adjusted so that the direction of the rotation axis of the fan blades was 45° upward from the horizontal, as shown in Fig. 19.
On the other hand, an anemometer (Test- Corporation, TESTO445) was installed inside the shielding tube. The anemometer was positioned such that the distance from the test partition member on the side where the electric fan was installed to the detection unit was 200 mm, and the height direction was also 200 mm. In addition, it was placed in the center of the horizontal direction (225 mm direction) of the shielding tube.
The wind speed was measured under this condition.

[Droplet spread]
As shown in Figures 20 and 21, a liquid was sprayed onto one of the two test partition members using a spray (Trust Co., Ltd., styling water for straightening hair). Figure 20 is a view from the front, and Figure 21 is a view from above. The spray was installed 500 mm horizontally from the test partition member and 300 mm from the lower end of the shielding tube, and the spray direction was at an angle of 45° to the normal line of the test partition member when viewed from above as shown in Figure 21, and the liquid was sprayed toward the center of the test partition member.
Meanwhile, a particle sensor (Omron Corporation, ZN-PD50-S) was installed inside the shielding cylinder. The particle sensor was positioned such that the distance from the test partition member on the side where the spray was installed to the detection unit was 100 mm, and the height direction was 150 mm. The particle sensor was also placed in the center of the shielding cylinder in the horizontal direction (225 mm direction).
Under these conditions, 20 μm particles (corresponding to droplets from a person) were collected every second for 7 seconds, and the number of particles was counted.

[sound]
As shown in Fig. 22, a sound was emitted from a sound source (a smartphone ringtone, maximum volume) from the outside of one of the two test partition members. The sound source was installed at a position 100 mm horizontally from the test partition member and 150 mm from the bottom end of the shielding tube.
On the other hand, a sound level meter (NL-42, ordinary sound level meter, Rion Co., Ltd.) was installed inside the shielding tube. The sound level meter was positioned so that the distance from the test partition member on the side where the sound source was installed to the detector was 200 mm, and the height direction was approximately 0 mm (placed on the bottom of the shielding tube). The sound level meter was also placed in the center of the horizontal direction (225 mm direction) of the shielding tube.
The noise was measured under these conditions.

4.1d. Results The test results are shown in Table 1 (Examples 1 to 5) and Table 2 (Comparative Examples 1 to 4).

In the test partition device according to the embodiment, the change in illuminance inside corresponds to the change in the brightness outside (change between sunlight and shade), and the change is gradual. In contrast, in the comparative examples, the illuminance inside changes rapidly depending on the presence or absence of sunlight in the light-transmitting ones (Comparative Example 1 to Comparative Example 3). On the other hand, in the light-blocking one (Comparative Example 4), the illuminance inside hardly changes depending on the presence or absence of sunlight.
The temperature during solar radiation is kept lower in the Example than in the Comparative Example, and the wind speed is also more appropriate in the Example than in the Comparative Example, ensuring good ventilation.
As described above, in the embodiment, it is possible to achieve a good balance between lighting, ventilation, and temperature inside the building, thereby improving the comfort of the indoor space.

In terms of droplets, the Examples were able to reduce them significantly compared to Comparative Examples 1 and 2, both of which were breathable.

From the above, the embodiment has a remarkable effect in suppressing the spread of droplets while maintaining a comfortable environment in the interior space. In addition, there is no significant difference in sound (noise) between the embodiment and the comparative example, and it can be seen that sound is also transmitted appropriately inside the embodiment.

4.2. Test B
In Test B, a test was conducted on the test partition device of Examples 1 to 5, in which the shielding plate was moved to hide a part of the transmissive portion with a non-transmissive portion. Example 1A was used to set the aperture ratio to 0% compared to Example 1, Example 2A was used to set the aperture ratio to 0% compared to Example 2, Example 3A was used to set the aperture ratio to 12% compared to Example 3, Example 3B was used to set the aperture ratio to 0% compared to Example 3, Example 4A was used to set the aperture ratio to 0% compared to Example 4, and Example 5A was used to set the aperture ratio to 0% compared to Example 5. The test method was the same as Test A. The configuration and results are shown in Table 3. In addition, a similar test was conducted on light control screens (Comparative Example 5 and Comparative Example 6) that have an opening and closing function.
In Comparative Examples 5 and 6, a light control screen (TR-3713, manufactured by Tosoh Corporation) was used. This light control screen is made of polyester and has a thickness of 0.4 mm, and is arranged so that two screens are overlapped in the forward direction, and light-transmitting sections and light-shielding sections are arranged alternately on the screens. The maximum aperture is 40% (Comparative Example 5), and the minimum aperture is 0% (Comparative Example 6). Therefore, by shifting the relative positions of the two screens, light can be easily collected when the light-transmitting sections overlap, and the degree of light collection is suppressed when the light-transmitting sections and light-shielding sections overlap. There is a gap of 18 mm between the two screens.
The amount of movement of the shield (Example) and screen (Comparative Example) required for opening and closing is shown (open state is the reference=0).

As a result, it was found that by adjusting the opening of the transparent section by moving the shielding plate, it is possible to obtain the intended adjustment of the internal environment (temperature, illuminance change, breathability) and the effect of suppressing the spread of droplets according to the opening rate, and that it is possible to widely respond to the needs of users.

In addition, in the embodiment, even if the movement of the shielding plate is small, effective adjustment is possible, and the internal environment can be easily adjusted. On the other hand, in Comparative Example 5 and Comparative Example 6, the screen needs to be moved by 50 mm. Thus, according to the present disclosure, it can be easily opened and closed with a small movement.

4.3. Test C
In Test C, one of the test partition members used in the above-mentioned Examples 2, 3, 3A, 3B, 4, 5, and Comparative Examples 1 to 6 was used to test the visibility and shielding ability of the partition member on the opposite side. Fig. 23 shows a diagram explaining the test method.

As shown in Fig. 23, a test partition member according to each example was fabricated and installed with dimensions of 910 mm in width and 1950 mm in length, and a person was placed in a standing position at a position 1000 mm on either side of the test partition member. The position of the person's head is indicated by a circle in Fig. 23.
In this state, we investigated whether person A could see the figure and facial expression of person B. For "figure recognition," if person A opened his eyes and was able to see the figure of person B, it was marked as "O," and if he was unable to do so, it was marked as "X." For "facial expression recognition," if person A opened his eyes and was able to see the facial expression of person B, it was marked as "O," if he was unable to do so, it was marked as "X," and if he could not say either way, it was marked as "△."
The conditions and results are shown in Table 4.

According to Examples 11 to 16, it is clear that the degree to which the facial expression of a person seen through a partition member can be recognized can be adjusted by changing the aperture diameter and aperture ratio of the transmission portion. On the other hand, such adjustment is not possible in the comparative example.
According to these results, the partition member disclosed herein and the partition device using it make it possible to precisely control the sense of distance from other people, such as concentrating on one's work while sensing the presence of a person on the other side of the partition member or partition device. This makes it possible to maintain concentration even when working remotely or from home, to create a semi-private space with a moderate sense of openness in a small area, and to selectively block the view on the other side to adjust what is visible (what is shown), thereby creating different lighting environments even in the same space.

10 Partition member 11 Frame body 12 Horizontal frame (frame material)
13 Vertical frame (frame material)
21 Shielding body 22 Base material 23 Decorative material 24 Transmissive portion 25 Non-transmissive portion 100, 110 Partitioning device

Claims (9)

A partition device having at least one partition member,
The partition member is
At least two plate-shaped shields are provided,
The shield has a plurality of transparent portions arranged in communication with each other in a thickness direction thereof, and adjacent transparent portions are provided with non-transparent portions that are not connected to each other in the thickness direction.
The transmission portion is a circle, an ellipse, or a polygon with arc-shaped corners,
the two shields are arranged such that one plate surface of each shield faces the other and a gap of 3.0 mm or less is provided between the plate surfaces;
a position in which the transparent portion of one of the shielding bodies overlaps with the transparent portion of the other of the shielding bodies, and a position in which at least a part of the transparent portion of the one of the shielding bodies is blocked by the non-transparent portion of the other of the shielding bodies can be switched.
Partition device. The partition device according to claim 1, wherein a plurality of the partition members are provided. The partition device according to claim 2, wherein at least two of the partition members are arranged in opposing positions. The partition device according to any one of claims 1 to 3, wherein an antiviral agent is disposed in the partition member. The partition device according to any one of claims 1 to 4, wherein the partition member has a frame body, the frame body is divided into a plurality of compartments, and at least one of the plurality of compartments is provided with the two shields. A partition device having at least one partition member,
the partition member has a frame body, the frame body is divided into a plurality of compartments, and at least two of the plurality of compartments are each provided with at least two plate-shaped shields,
The shield has a plurality of transparent portions arranged in communication with each other in a thickness direction thereof, and adjacent transparent portions are provided with non-transparent portions that are not connected to each other in the thickness direction.
the two shields are arranged such that one plate surface of each shield faces the other and a gap of 3.0 mm or less is provided between the plate surfaces;
a position in which the transparent portion of one of the shielding bodies overlaps with the transparent portion of the other of the shielding bodies, and a position in which at least a part of the transparent portion of the one of the shielding bodies is blocked by the non-transparent portion of the other of the shielding bodies can be switched.
Partition device. The partition device according to claim 6 , wherein a plurality of the partition members are provided. The partition device according to claim 6 , wherein at least two of the plurality of partition members are disposed in opposing positions. The partitioning device according to any one of claims 6 to 8, wherein an antiviral agent is disposed in the partitioning member.

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