JP7844773B2 - shielding device - Google Patents

Description

The present invention relates to a shielding device, and is particularly suitable for application to a shielding device that prevents scattering and allows for adjustable transparency.

Conventionally, in shielding devices, measures to prevent scattering generally involve using transparent plates such as acrylic, frosted glass plates, or so-called corrugated plastic cardboard made from polypropylene.

Furthermore, shading devices with adjustable transparency include dimmable roller screens and perforated roller screens. Additionally, shading devices designed to enhance aesthetics (e.g., decorative partitions) are also commonly available.

While there are situations where a transparent panel is needed that combines shatterproofing and face-to-face visibility, there are concerns about its use as a partition, such as the privacy of the person facing it. Frosted glass panels can mitigate this by softening the view of the person facing it. However, while frosted glass panels can fulfill the function of softening the view of the person facing it, they tend to have a monotonous design.

As a countermeasure, for example, it is conceivable to attach a decorative film or fabric to a frosted glass-like panel. Furthermore, in a splash-proof shield that allows for the assembly of one or two flat glass substrates on two or three horizontally erected wooden frames, and allows for adjustment of the partition spacing, a design is known in which decorative patterns and textual markings are printed on the surface of the glass substrate (see, for example, Patent Document 1).

Utility Model Registration No. 3231218 Gazette

In the splash-proof shield described in Patent Document 1, while the design can be improved by printing on the surface of the glass substrate, printing on only one side results in different designs on both sides. Even if the design is improved, the difference in design between the two sides can impair visibility and create a feeling of confinement. Furthermore, because the design is printed directly onto the glass substrate, it is not possible to change the design pattern or adjust the brightness.

Therefore, the present invention has been made in view of the above-mentioned problems, and one of its objectives is to provide a shielding device that is aesthetically pleasing, dimmable, and prevents scattering.

The above objective is achieved by the present invention as described below. Specifically, the shielding device of the present invention comprises two transparent plates arranged on the front and rear sides, and a sheet-like member positioned between the two transparent plates, having a predetermined transparency and a predetermined design.

In the present invention, it is preferable that the shielding device comprises a fixing device for securing the sheet-like member sandwiched between the two transparent plates.

In the present invention, it is preferable that the sheet-like member has a die-cut pattern formed on it.

In this invention, the cut-out pattern is preferably a predetermined picture, stripe pattern, or border pattern.

In this invention, the fastener is preferably a bolt and nut, or a screw, that securely fastens the two transparent plates and the sheet-like member together.

In the present invention, the fastener is preferably a fastener that secures the two transparent plates and the sheet-like member while sandwiching them together.

In this invention, it is preferable that the two transparent plates have a bag structure for housing the sheet-like member on the surfaces facing each other.

In the present invention, when the sheet-like member is sandwiched between the two transparent plates, it is preferable that the anti-slip sheet, which serves as a fixing device capable of holding the sheet-like member, is provided on either the transparent plate or the sheet-like member.

In this invention, it is preferable that the sheet-like members are sandwiched between the two transparent plates in a stacked configuration.

In the present invention, it is preferable that the sheet-like member consists of a first sheet having a stripe pattern with alternating transparent and opaque portions, and a second sheet having the stripe pattern and a grippable tab.

In this invention, it is preferable that a slip-promoting sheet is placed between the front-facing sheet-like member and the back-facing sheet-like member to improve slippage.

According to the present invention, it is possible to provide a shielding device that prevents scattering, has excellent design, and allows for adjustment of visibility.

(A) is a perspective view illustrating the concept of the shielding device according to the first embodiment of the present invention, and (B) and (C) are plan views showing variations of the sheet-like member. This is a perspective view showing the configuration when a hinge is used as a specific example of a fastener according to the first embodiment of the present invention. These are perspective views (A) and (B) showing a configuration in which an anti-slip sheet is attached to a shielding device according to the first embodiment of the present invention. This is a plan view showing the configuration of a fastener for holding a sheet-like member between two transparent plates in a first embodiment of the present invention. These are perspective views (A) and plan views (B) showing the configuration of a bag structure provided between two transparent plates in a second embodiment of the present invention. These are a perspective view (A), a partially enlarged view (B), and a plan view (C) for illustrating the concept of a shielding device according to a fourth embodiment of the present invention. This figure illustrates a method for dimming light in a shielding device according to a fourth embodiment of the present invention. This figure shows a modified example of the fourth embodiment of the present invention. This is a perspective view showing another configuration example of a shielding device according to the fourth embodiment of the present invention.

[Summary of the Embodiment]
First, a general overview of a typical embodiment of the invention disclosed in this application will be provided. In the following description, as an example, reference numerals on the drawings corresponding to the components of the invention are indicated in parentheses.

[1] In a typical embodiment of the present invention, the shielding device (1, 20, 30) comprises two transparent plates (2, 4) arranged on the front and rear sides, and a sheet-like member (6, 43, 44, 43s, 44s) positioned between the two transparent plates (2, 4) and having a predetermined transparency and a predetermined design.

[2] The shielding device (1, 20, 30) comprises fasteners (7, 9, 10, 11, 25, 48) that secure a sheet-like member (6, 43, 44, 43s, 44s) sandwiched between two transparent plates (2, 4).

[3] In the shielding device (1, 20, 30) described above, the sheet-like members (6, 43, 44, 43s, 44s) have cutouts (61, 43w, 44w, 43sw, 44sw) formed on them.

[4] In the above shielding device (1, 20, 30), the cutout pattern (61, 43w, 44w, 43sw, 44sw) is a predetermined pattern, stripe pattern, or border pattern.

[5] In the shielding device (1) described above, the fastener (7) is a bolt (7) and nut, or screw, that fastens together the two transparent plates (2, 4) and the sheet-like member (6).

[6] In the shielding device (1) described above, the fixing device (10) is a fastener (10) that secures the two transparent plates (2, 4) and the sheet-like member (6) in a sandwiched state.

[7] In the shielding device (1) described above, the two transparent plates (2, 4) have a bag structure (25) on the surfaces facing each other that accommodates a sheet-like member (6).

[8] In the shielding device (1) described above, with a sheet-like member (43, 44) sandwiched between two transparent plates (2, 4), a non-slip sheet (48) is provided on the transparent plates (2, 4) or the sheet-like member (6) as a fixing device capable of holding the sheet-like member (43).

[9] In the shielding device (1) described above, multiple sheet-like members (43, 44, 43s, 44s) are stacked and sandwiched between two transparent plates (2, 4).

[10] In the shielding device (1) described above, the sheet-like members (43, 44, 43s, 44s) consist of a first sheet (43, 43s) having a striped pattern with alternating transparent portions (43w, 44w, 43sw, 44sw) and opaque portions (43b, 44b, 43sb, 44sb), and a second sheet (44, 44s) having a striped pattern and grippable tabs (44t, 44st).

[11] In the shielding device (1) described above, a slip-promoting sheet (49) is arranged between the front sheet-like member (44) and the rear sheet-like member (43) to improve slippage.

[Embodiment]
Hereinafter, embodiments of the present invention will be described in detail, divided into the first to third embodiments, with reference to the drawings.

[First Embodiment]
Figure 1 is a perspective view (A) illustrating the concept of the shielding device according to the first embodiment of the present invention, and plan views (B) and (C) showing variations of the sheet-like member. Figure 2 is a perspective view showing the configuration when a hinge is used as a specific example of the fastener according to the first embodiment of the present invention. Figure 3 is a perspective view (A) and (B) showing the configuration in which an anti-slip sheet is attached to the shielding device according to the first embodiment of the present invention. Figure 4 is a plan view showing the configuration of a fastener that holds a sheet-like member sandwiched between two transparent plates in the first embodiment of the present invention.

In the following embodiments, "up and down" refers to the vertical direction in relation to gravity, and "horizontal" refers to the horizontal direction perpendicular to the direction of gravity. Furthermore, "front" and "back" refer to the depth direction on the page. However, "horizontal" does not need to be precisely perpendicular to the direction of gravity; it includes not only areas that are approximately horizontal, but also inclinations that are sufficient to realize the present invention.

In the shielding device 1 according to the first embodiment, as shown in Figure 1(A), it is composed of one transparent plate 2 positioned on the front side (the side closest to the viewer in the figure), one transparent plate 4 positioned on the rear side (the side furthest from the viewer in the figure) relative to the transparent plate 2, and one sheet-like member 6 positioned between these two transparent plates 2 and 4.

The transparent plates 2 and 4 are transparent members that have complete transparency across their entire surface area, such as thin sheets of highly transparent acrylic or glass. While transparent plates 2 and 4 are intended to be transparent members with complete transparency, the transparency is not limited to these; it includes levels of transparency similar to frosted glass, and encompasses a degree of transparency that allows for visual recognition of the presence of the person facing them.

Through holes 2h and 4h are provided at the four corners of the transparent plates 2 and 4 for fastening together with the sheet-like member 6. The sheet-like member 6 is, for example, a sheet made of a thin fabric. That is, because the sheet-like member 6 is made of fabric, it is opaque rather than transparent. However, it is not limited to this; it may also be an opaque sheet-like member made of plastic, film, or other materials.

The surface of the sheet-like member 6 has a pattern 61 formed by through-holes of any shape. This provides the sheet-like member 6 with both aesthetic appeal and partial transparency due to the pattern 61. Here, "opaque" includes cases where the material is colored or has a frosted glass-like pattern.

Furthermore, the sheet-like member 6 also has through holes 6h at its four corners for fastening together with the two transparent plates 2 and 4. That is, the four through holes 2h and 4h in the transparent plates 2 and 4 and the four through holes 6h in the sheet-like member 6 are formed in corresponding positions.

The transparent plates 2 and 4 are generally larger than the sheet-like member 6, and are sized to completely cover the sheet-like member 6 without it protruding from the transparent plates 2 and 4 when it is sandwiched between them.

As shown in Figure 1(B), the sheet-like member 6 has die-cut patterns 61 formed on it, each with a different design. Here, the die-cut pattern 61 refers to through-holes in the sheet-like member 6, which is the fabric, that have a shape with an arbitrary design applied to them.

Therefore, the sheet-like member 6 has a cutout pattern 61, for example, a design of plants, or a geometric pattern created by combining polygons such as triangles, squares, and hexagons, or simple shapes such as circles, ellipses, and straight lines, while applying operations such as translation, inversion, rotation, color change, scaling, and division to them in a continuous sequence and then unfolding the arrangement.

Furthermore, as shown in Figure 1(C), the sheet-like member 6d may have, for example, a cutout pattern 61 with a stripe design, the sheet-like member 6e may have a cutout pattern 61 with a border design, or the sheet-like member 6f may have a cutout pattern 61 with multiple rectangular holes arranged regularly. Regarding the various patterns constituting the cutout pattern 61, it is possible to select various placement locations, such as placing them only on the upper part of the sheet-like member 6 or only on the lower part.

In particular, the cutout pattern 61 should preferably feature images of plants or animals, or symmetrical shapes, that look natural from both the front and the back. In this case, the design will be aesthetically pleasing to both the user viewing the sheet-like member 6 from the front and the user viewing it from the back.

With the sheet-like member 6, which has the cutout pattern 61, sandwiched between the front transparent plate 2 and the back transparent plate 4, the three components—transparent plates 2 and 4, and the sheet-like member 6—are fastened together using bolts 7 and nuts or screws or bolts, etc., through the opposing through-holes 2h, 4h, and 6h, thereby forming a shielding device 1.

In the above configuration, the shielding device 1 can block the scattering of droplets from users on the front and back sides by the transparent plate 2 positioned on the front side and the transparent plate 4 positioned on the back side. Therefore, droplets adhere only to the transparent plates 2 and 4, keeping the sheet-like member 6 clean.

Furthermore, in the shielding device 1, a predetermined cutout pattern 61 is formed on a sheet-like member 6 sandwiched between two transparent plates 2 and 4. Therefore, the user can sense the presence of the person opposite them through the through-holes in the cutout pattern 61, while not having to worry about the other person's gaze. At the same time, because the sheet-like member 6 is sandwiched between the two transparent plates 2 and 4, it is possible to prevent the user's droplets from scattering through the through-holes in the cutout pattern 61.

Furthermore, the shielding device 1 allows users on the front and back sides to appreciate the design through the cutout pattern 61 of the sheet-like member 6, and by replacing the sheet-like member 6, users can enjoy different designs.

Furthermore, the shielding device 1 can take in ambient light through the cutouts 61 (through holes) of the sheet-like member 6, thus maintaining an appropriate level of brightness. Additionally, the amount of ambient light incident in the shielding device 1 can be changed by replacing the current sheet-like member 6 with another sheet-like member 6 that has a different design and size of cutouts 61.

This shielding device 1 does not have a support frame, so it can be used as a tabletop partition by being sandwiched between two desks. Of course, the shielding device 1 can also be used as a floor-standing partition supported by a support frame (not shown).

Furthermore, as shown in Figure 2, in the first embodiment, instead of using bolts 7 as fasteners, the shielding device 1 can be configured to fix the rear transparent plate 4 to the two frames 8 and to use hinges 9 as fasteners. In this case, the common feature is that a sheet-like member 6 is sandwiched between the front transparent plate 2 and the rear transparent plate 4.

However, this shielding device 1 has hinges 9 at two locations on the left and right of the lower end that hold the transparent plates 2 and 4 and the sheet-like member 6 in a manner that allows them to be opened and closed. The hinges 9 may also be provided at two locations on the left and right of the upper end of the transparent plates 2 and 4, or at two locations on the left and right sides.

In this case, the shielding device 1 allows the transparent plate 2 to be opened towards the front relative to the transparent plate 4 via the hinge 9, making it possible to freely and easily replace the sheet-like members 6 (6a to 6f) (not shown).

Furthermore, in the shielding device 1, as shown in Figure 3(A), a non-slip sheet 11, which serves as a fixing device consisting of a rectangular frame for maintaining the sheet-like member 6 sandwiched between the two transparent plates 2 and 4, can be attached to the surfaces of the transparent plates 2 and 4 facing the sheet-like member 6, or, as shown in Figure 3(B), to the front and/or back surfaces of the sheet-like member 6.

The anti-slip sheet 11 is made of a material that can be held in place by the frictional force generated between it and the sheet-like member 6. For example, rubber is used. However, it is not limited to rubber; any other material such as resin, cloth, or paper may be used as long as the sheet-like member 6 can be held in place without shifting position by the frictional force.

Furthermore, the anti-slip sheet 11 does not necessarily have to form a frame; it may be attached with only two strips at the top and bottom, or with only two strips at the left and right. It may also be attached in a scattered manner at several predetermined locations.

Furthermore, as shown in Figure 4, in the shielding device 1, instead of using bolts 7 or hinges 9 as fasteners, U-shaped fasteners 10 are used at the upper left and right ends or in the center, allowing the three components to be fixed together with the sheet-like member 6 sandwiched between the two transparent plates 2 and 4.

The U-shaped fastener 10 has a leaf spring structure and firmly holds the sheet-like member 6 between the two transparent plates 2 and 4. The U-shaped fastener 10 may be provided at the lower left and right ends or the lower center, or at two locations on the left and right. In this case as well, the shielding device 1 can be used in conjunction with the anti-slip sheet 11.

[Second Embodiment]
Figure 5 is a perspective view (A) and a plan view (B) showing the configuration of a bag structure provided between two transparent plates in a second embodiment of the present invention.

In the second embodiment, as shown in Figures 5(A) and (B), the shielding device 20 has a bag structure 25 as a fastener with a predetermined thickness that is U-shaped in plan view and capable of housing and fixing the sheet-like member 6 between two transparent plates 2 and 4.

Therefore, in the shielding device 20, the two transparent plates 2 and 4 and the sheet-like member 6 housed within the bag structure 25 are integrally fixed with the bag structure 25 interposed between them.

The bag structure 25 has two opposing side wall portions 25s and a bottom wall portion 25b provided horizontally to connect the lower ends of the two side wall portions 25s. Therefore, in the shielding device 20, the bag structure 25 forms a space between the two side wall portions 25s, the bottom wall portion 25b, and the transparent plates 2 and 4 that can accommodate the sheet-like member 6. The sheet-like member 6 can be housed in this space and held in place by the bottom wall portion 25b without falling downwards.

The bag structure 25 is made of various materials such as plastic, resin, or cloth, and as shown in Figure 5(B), it has an open space at the top. Therefore, the sheet-like member 6 only needs to be inserted from the top, and there is no need to hold it in a clamped position. Incidentally, the shielding device 20 can also be used in an upright position using the stand 8 (Figure 2).

[Third Embodiment]
Figure 6 shows a perspective view (A), a partially enlarged view (B), and a plan view (C) for illustrating the concept of a shielding device according to a third embodiment of the present invention.

As shown in Figure 6, in the third embodiment, the shielding device 30 has a frame 41 at its lower end and includes two transparent plates 2 and 4, and two sheet-like members 43 and 44 that are held in a sandwiched state between the two transparent plates 2 and 4.

In this case, the shielding device 30 has spacers 45 and 46 attached to the upper and lower ends of the two transparent plates 2 and 4, respectively, to form a space that allows two sheet-like members 43 and 44 to be held between the two transparent plates 2 and 4.

The spacers 45 and 46 are made of rod-shaped members of resin or the like, extending horizontally, and are attached parallel to the upper and lower sides of the opposing surfaces of the transparent plates 2 and 4. In other words, the transparent plates 2 and 4 of the shielding device 40 are integrated via the spacers 45 and 46 and held in place by being inserted between the arms 41a and 41b of the frame 41.

The sheet-like members 43 and 44 have a vertical height that allows them to be inserted from both the left and right sides into the space between the upper spacer 45 and the lower spacer 46, and their horizontal length is approximately the same as or slightly shorter than the two transparent plates 2 and 4.

A non-slip sheet 48 of a predetermined size is attached to one or both of the opposing surfaces of the two transparent plates 2 and 4, serving as a fixing device to prevent the sheet-like members 43 and 44 from shifting position.

The anti-slip sheets 48 are attached to the transparent plates 2 and 4 at positions corresponding to the four corners of the sheet-like member 43. However, this is not the only option; the anti-slip sheets 48 may be attached to any location as long as they prevent the sheet-like member 43 from shifting position.

In this case, the anti-slip sheet 48 is attached to the transparent plate 4, but it may also be attached to the transparent plate 2. Alternatively, the anti-slip sheet 48 may be attached to the sheet-like member 43.

In this case, the sheet-like members 43 and 44 are made of striped fabric with a vertical stripe pattern, and consist of alternating transparent lace fabric portions 43w and 44w as cutouts and opaque light-blocking fabric portions 43b and 44b. In this case, the back side, or the rear side, is the sheet-like member 43, and the front side, or the front side, is the sheet-like member 44.

The sheet-like member 43 is arranged with alternating sections of opaque, light-blocking fabric 43b, nearly transparent lace fabric 43w, etc., from the left end, with the nearly transparent lace fabric 43w positioned at the right end.

Incidentally, although the lace fabric portion 43w is described as nearly transparent, it is actually a lace fabric, so even though it's nearly transparent, it's not glass-like; it's only transparent enough to recognize the presence of the person facing it. Furthermore, while a high-shielding fabric can be used for the light-blocking fabric portion 43b, it is not limited to this; a medium-shielding fabric may also be used. In other words, it just needs to be opaque enough that the presence of the person facing it cannot be recognized compared to the lace fabric portion 43w.

On the other hand, the sheet-like member 44 is arranged with alternating sections of opaque light-blocking fabric 44b, nearly transparent lace fabric 44w, etc., from the left end, and opaque light-blocking fabric 44b is also arranged at the right end.

In other words, the sheet-like member 44 has one less opaque light-blocking fabric portion 44w at its right end compared to the sheet-like member 43. However, the sheet-like member 44 has a tab 44t of a predetermined length attached to the opaque light-blocking fabric portion 44b at its right end, which can be grasped by the user. The horizontal length 44td of the tab 44t is slightly longer than the horizontal length 44bt of the opaque light-blocking fabric portion 44b.

Therefore, the shielding device 30 is formed by inserting, for example, two sheet-like members 43 and 44 between the two transparent plates 2 and 4, starting from the right end and extending to the left end. In this case, as shown in Figure 7(A), the tab 44t of the front-side, i.e., the sheet-like member 44, protrudes slightly outward from the right end of the transparent plates 2 and 4.

In this case, the stripe patterns of the front sheet-like member 44 and the back sheet-like member 43 completely overlap. That is, the opaque light-blocking fabric portion 43b of the sheet-like member 43 completely overlaps the opaque light-blocking fabric portion 44b of the sheet-like member 44, and the nearly transparent lace fabric portion 43w of the sheet-like member 43 completely overlaps the nearly transparent lace fabric portion 44w of the sheet-like member 44. This represents the fully open state of the sheet-like members 43 and 44, a light-transmitting state where the amount of incident light from outside is maximized through the nearly transparent lace fabric portions 43w and 44w.

As shown in Figure 7(B), when a user on the front side grasps the tab 44t of the sheet-like member 44 and pulls it to the right, the sheet-like member 43 on the back side remains stationary due to the anti-slip sheet 48, while only the sheet-like member 44 on the front side moves to the right.

As a result, the nearly transparent lace fabric portion 43w of the sheet-like member 43 on the back side and the opaque light-blocking fabric portion 44b of the sheet-like member 44 on the front side begin to overlap. At this point, the sheet-like members 43 and 44 are in an intermediate state between fully open and fully closed, and the amount of incident light can be adjusted by moving the sheet-like member 44, resulting in a semi-transparent state.

Furthermore, as shown in Figure 7(C), when the user on the front side grasps the tab 44t of the sheet-like member 44 and pulls it further to the right, the nearly transparent lace fabric portion 43w of the sheet-like member 43 on the back side and the opaque light-blocking fabric portion 44b of the sheet-like member 44 on the front side completely overlap.

In this case, the user will only see the opaque light-blocking fabric portions 43w and 44w of the sheet-like members 43 and 44 through the transparent plates 2 and 4. This represents a completely closed state by the sheet-like members 43 and 44, resulting in a light-blocking state with zero incident light, where no external light enters. However, if a medium-light-blocking fabric is used for the light-blocking fabric portions 43w and 44w, a low-light-transmitting state will be achieved, where a slight amount of external light can be perceived.

Therefore, in the shielding device 30, the overlap of the stripe patterns of the sheet-like members 43 and 44 can be adjusted according to the user's preference by pulling the tab 44t. This allows for dimming while considering the degree to which the presence of the person opposite is noticeable and the amount of incident light.

While the shielding device 30 described uses sheet-like members 43 and 44 with vertical stripes, the present invention is not limited to this. As shown in Figure 8, sheet-like members 43s and 44s may be used, arranged alternately with light-blocking fabric portions 43sb and 44sb with horizontal stripes, and lace fabric portions 43sw, 44sw, etc., as cutouts. In this case, the light can be adjusted by moving the front sheet-like member 44s vertically using the tab 44st.

Furthermore, while the shielding device 30 was described in the case where the sheet-like members 43 and 44 are directly overlapped, the present invention is not limited to this. As shown in Figure 9, a transparent sliding-promoting sheet 49 may be placed between the back-side sheet-like member 43 and the front-side sheet-like member 44 to improve sliding. This allows the front-side sheet-like member 44 to slide smoothly when the tab 44t is pulled in the shielding device 30.

[Other embodiments of the present invention]
In the first to third embodiments described above, we have described cases in which one sheet-like member 6 or two sheet-like members 43 and 44 are placed between two transparent plates 2 and 4. However, the present invention is not limited to these cases, and any structure in which a sheet-like member is sandwiched between transparent plates may be used, and the number of transparent plates and sheet-like members is not limited.

Furthermore, those skilled in the art may modify the shielding devices 1, 20, and 30 of the present invention as appropriate, in accordance with conventionally known knowledge. Such modifications, as long as they still possess the configuration of the present invention, are of course included within the scope of the present invention.

1, 20, 30... Shielding device, 2, 4... Transparent plate, 6 (6a, 6b, 6c, 6d, 6e, 6f), 43, 44, 43s, 44s... Sheet-like member, 2h, 4h, 6h... Through hole, 61... Cutout handle, 7... Bolt, 8, 41... Stand, 9... Hinge, 10... U-shaped fastener, 11, 48... Anti-slip sheet, 25... Bag structure, 25s... Side wall section, 25b... Bottom wall section, 43w, 44w... Lace fabric section, 43b, 44b... Light-shielding fabric section, 44t... Tab, 45, 46... Spacer, 49... Slip-promoting sheet.

Claims (3)

Two transparent plates are positioned on the front and back sides,
A sheet-like member is placed between the two transparent plates and has a predetermined transparency and is decorated with a predetermined design,
A fixing device for securing the sheet-like member sandwiched between the two transparent plates,
A frame for erecting the shielding device,
Equipped with ,
The transparent plate on the back side is fixed to the frame,
The fastener is a hinge that connects the lower ends, upper ends, or lateral ends of the transparent plates on the front and back sides.
The transparent panel on the front side can be opened and closed by rotating it around the pivot axis of the hinge relative to the transparent panel on the back side.
Shielding device. The shielding device according to claim 1 , wherein a die-cut pattern is formed on the sheet-like member. The shielding device according to claim 2 , wherein the cutout pattern is a predetermined picture, stripe pattern, or border pattern.