JP7482482B2 - Splash prevention device and its installation method - Google Patents

Description

Patent Law Article 30, Paragraph 2 applied June 30, 2020 Sold to Yamanaka Insurance Office Co., Ltd.

Article 30, paragraph 2 of the Patent Act applied July 3, 2020 Published on the website https://www.accea.co.jp/cuttimg/acrylicpartition/

The present invention relates to a splash prevention device for a partition and a method for installing the splash prevention device on a partition.

For example, in an office, two desks may be laid out facing each other with their tops touching. Therefore, the two people working at each of the two desks will also be facing each other. Considering that the movement of the hands of the person opposite can distract the person working at each desk, and that it is necessary to prevent the contents of documents on the desk from being seen, a partition may be installed between the two desks to block the view of the desk opposite (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 8-154746

In recent times, from the perspective of preventing the spread of viral infections (such as COVID-19), it is desirable to prevent droplets of human saliva and the like as much as possible. However, conventional partitions are designed to hide hands and documents on desks from view, and the height of the partitions is set because if the partitions are too high, the desk workers feel a sense of claustrophobia or oppression. Therefore, it was difficult to imagine that partitions would adequately block droplets. Furthermore, such thinking could cause office workers to worry about infection.

The present invention was made in consideration of the above circumstances, and aims to provide a splash prevention device suitable for mounting on a partition, and a method for installing the splash prevention device on a partition.

(1) One aspect of the present invention is a splash prevention device for a partition having a convex portion protruding in the front-rear direction from a first surface extending in the up-down and left-right directions. The splash prevention device includes a transparent panel, a first left sub-plate and a second left sub-plate, and a first right sub-plate and a second right sub-plate. The transparent panel has a main surface extending in the up-down and left-right directions above the upper frame, and a first left slit and a first right slit extending in the up-down direction from the lower end and spaced apart in the left-right direction. The first left sub-plate and the second left sub-plate are placed on the upper frame and overlap in the left-right direction. The first right sub-plate and the second right sub-plate are placed on the upper frame to the right of the first left sub-plate and the second left sub-plate, and overlap in the left-right direction. The first left sub-plate has a first left sub-slit and a first left sub-hanging portion. The first left sub-slit extends in the vertical direction from the upper end of the left first sub-plate and engages with the first left slit. The first left sub-hanging portion abuts the first surface of the partition below the convex portion below the first left sub-slit. The left second sub-plate has a second left sub-slit and a second left sub-hanging portion. The second left sub-slit extends in the vertical direction from the upper end of the left second sub-plate and engages with the first left slit. The second left sub-hanging portion abuts the second surface of the partition below the convex portion and opposite to the first surface below the second left sub-slit. The right first sub-plate has a first right sub-slit and a first right sub-hanging portion. The first right sub-slit extends in the vertical direction from the upper end of the right first sub-plate and engages with the first right slit. The first right sub-hanging portion abuts the first surface of the partition below the convex portion below the first right sub-slit. The right second sub-plate has a second right sub-slit and a second right sub-hanging portion. The second right sub-slit extends in the vertical direction from the upper end of the right second sub-plate and engages with the first right slit. The second right sub-hanging portion abuts the second surface of the partition below the convex portion below the first right sub-slit.

According to the above configuration, the transparent panel can prevent droplets from spreading beyond the partition. The transparent panel also reduces the sense of pressure felt by people and does not impede communication with people around them. In addition, the system is low cost because existing partitions can be used. Furthermore, the transparent panel can be stably attached to partitions that have protruding portions.

(2) The partition has a groove extending in the left-right direction on the first surface. The first left sub-hanging portion has a left convex portion that engages with the groove, and the first right sub-hanging portion has a right convex portion that engages with the groove.

The above configuration makes it difficult for both support plates to come off the partition.

(3) The left first sub-plate, the left second sub-plate, the right first sub-plate, and the right second sub-plate have the same shape as each other.

The above configuration allows the use of components regardless of the arrangement of the components in the front, back, left and right directions, making it easy to install the splash prevention device.

(4) The left first sub-plate, the left second sub-plate, the right first sub-plate, and the right second sub-plate are transparent.

With the above configuration, the entire splash prevention device is transparent, so it can be attached to the partition without looking out of place.

(5) The partition is installed on the table top. The vertical dimension of the transparent panel is greater than the vertical dimension of the partition.

(6) Another aspect of the present invention is a method for installing the splash prevention device on a partition. The installation method includes a first step of placing a reference plate having a length equivalent to the distance between the first left slit and the first right slit on the upper surface of the upper frame, a second step of placing the first left sub-plate and the second left sub-plate on the upper surface of the upper frame at a position to the left of the reference plate and placing the first right sub-plate and the second right sub-plate on a position to the right of the reference plate, a third step of engaging the first left slit of the transparent panel with the first left sub-slit and the second left sub-slit and engaging the first right slit of the transparent panel with the first right sub-slit and the second right sub-slit, and a fourth step of removing the reference plate from the upper surface of the upper frame.

According to the above installation method, the splash prevention device can be easily installed on the partition by using the reference plate.

The present invention provides a splash prevention device suitable for mounting on a partition, and a method for installing the same.

Schematic diagrams showing each component of the splash prevention device 100 according to the embodiment, in particular, (A) shows the transparent panel 110, (B) shows the reference plate 120, and (C) shows the sub-plates 130LF, 130LR, 130RF, and 130RR. 1A is a schematic diagram showing a reference plate 120 placed on the upper surface of a low partition 200, and FIG. 1B is a schematic diagram showing sub-plates 130LF, 130LR located at a distance in front and behind the low partition 200. FIG. 1A is a schematic diagram showing sub-plates 130LF, 130LR abutting against the low partition 200 from the front and rear, and FIG. 1B is a schematic diagram showing the transparent panel 110 before the slits engage with each other, and the left support plate 130L and the right support plate 130R. FIG. 2 is a schematic diagram showing the splash prevention device 100 according to the embodiment (after assembly). 13 is a schematic diagram showing a recessed groove of a low partition 200 according to a modified example. FIG. 13 is a schematic diagram showing sub-plates 130LF, 130LR, 130RF, and 130RR according to modified examples.

The splash prevention device 100 according to the embodiment of the present invention will be described below with reference to the drawings as appropriate. Note that the embodiment described below is merely one example of the present invention, and it goes without saying that the embodiment of the present invention can be modified as appropriate without changing the gist of the present invention. In the following description, the up-down direction of the low partition 200 and the splash prevention device 100 is defined based on the desktop 300 (see FIG. 2). In addition, the front-rear direction of the low partition 200 and the splash prevention device 100 is defined based on the side of the desk user's seating position relative to the desktop 300 (i.e., the desk top) being the near side. In addition, the left-right direction of the low partition 200 and the splash prevention device 100 is defined based on the seating position. The up-down direction, the front-rear direction, and the left-right direction are mutually perpendicular.

As shown in FIG. 4, the splash prevention device 100 is used while attached to a low partition 200 installed on a desktop 300 (see FIG. 2). Below, we will first explain the splash prevention device 100 in an unassembled state before use. For convenience, the up-down direction, front-rear direction, and left-right direction will also be used in the explanation of the unassembled state.

[General configuration of splash prevention device 100]
As shown in Figures 1A and 1C, the splash prevention device 100 includes a transparent panel 110, a left support plate 130L, and a right support plate 130R. Figure 1B shows a reference plate 120. The reference plate 120 is used when attaching the splash prevention device 100 to a low partition 200 (see Figure 2, etc.).

The transparent panel 110, the reference plate 120, the left support plate 130L, and the right support plate 130R are made by cutting them out of a large transparent acrylic plate using NC processing or laser processing. Note that these may also be made from transparent materials other than acrylic plate (such as polycarbonate plate or glass plate), but acrylic plate and polycarbonate plate are preferred because they are lightweight and less likely to break.

[Transparent panel 110]
In Fig. 1A, the shape of the transparent panel 110 is generally rectangular when viewed from the front (hereinafter also referred to as "front view"). The transparent panel 110 has two main surfaces 111 and slits 112L and 112R. Note that Fig. 1A shows only the front main surface 111. The slits 112L and 112R are examples of a first left slit and a first right slit.

The two main surfaces 111 are generally rectangular in shape, extending in the vertical and horizontal directions. The two main surfaces 111 are spaced apart from each other in the front-to-rear direction by the front-to-rear dimension of the transparent panel 110 (hereinafter also referred to as the "panel thickness"). The vertical dimension of the main surface 111 (i.e., the transparent panel 110) is greater than the vertical dimension of the low partition 200.

Slit 112L extends in a straight line upward from a position near the left end at the bottom end 113 of transparent panel 110. Slit 112R extends in a straight line upward from a position near the right end at the bottom end 113 of transparent panel 110. That is, slits 112L and 112R are arranged side by side at a distance (hereinafter also referred to as the "slit distance") in the left-right direction on transparent panel 110. The planar shapes of slits 112L and 112R are generally the same.

[Reference plate 120]
1B, the reference plate 120 is a generally rectangular plate that is elongated in the left-right direction when viewed from above. The left-right dimension of the reference plate 120 is generally the same as the slit interval.

[Left support plate 130L, right support plate 130R]
1C, the left support plate 130L is made up of sub-plates 130LF and 130LR. The right support plate 130R is made up of sub-plates 130RF and 130RR. The sub-plates 130LF and 130LR are examples of a left first sub-plate and a left second sub-plate, and the sub-plates 130RF and 130RR are examples of a right first sub-plate and a right second sub-plate.

The shapes of the sub-plates 130LF, 130LR, 130RF, and 130RR are the same. This allows for a low-cost splash prevention device 100 to be provided. Furthermore, when installing the splash prevention device 100, there is no need to distinguish between the sub-plates 130LF, 130LR, 130RF, and 130RR. Below, only the sub-plate 130LF will be described in detail as a representative example, and the sub-plates 130LR, 130RF, and 130RR will be briefly described. Note that in FIG. 1(C), the sub-plates 130LR and 130RR are shown in a state in which they are inverted in the left-right direction.

[Sub-board 130LF]
The sub-board 130LF has a main body 131LF, a sub-slit 132LF, and a sub-hanging portion 140LF. The sub-slit 132LF is an example of a first left sub-slit. The sub-hanging portion 140LF is an example of a first left sub-hanging portion.

The shape of the main body 131LF is generally trapezoidal when viewed from the right in plan view (hereinafter also referred to as "side view"). In addition to the two trapezoidal main surfaces, the main body 131LF has a front end 135LF, a rear end 136LF, an upper end 137LF, and a lower end 138LF.

The sub-slit 132LF extends downward in a generally straight line from the center in the front-to-rear direction at the upper end 137LF. The front-to-rear dimension of the sub-slit 132LF is generally the same as the panel thickness.

The sub-hanging portion 140LF has a base portion 133LF and a protrusion portion 134LF.

The base 133LF extends downward from the forward portion of the lower end 138LF. In detail, the rear end of the base 133LF extends linearly downward from a position P11 at the lower end 138LF, which is forward of the sub-slit 132LF.

The shape of the protrusion 134LF is generally rectangular in side view. The protrusion 134LF extends rearward beyond the rear end of the base 133LF at a position near the lower end of the base 133LF.

Here, the low partition 200 will be described in detail. As shown in FIG. 2, the low partition 200 is installed along the rear end of the desktop 300, which is the top plate, and has a board 210 and an upper frame 220. The low partition is fixed to the desktop 300 via a known mounting fixture or the like.

The board 210 has a front surface 211 and a rear surface 212. The front surface 211 and the rear surface 212 are spaced apart from each other in the front-to-rear direction. The front surface 211 and the rear surface 212 are substantially rectangular in front view, and each extends in two directions (specifically, the left-right direction and the up-down direction).

Generally, the board 210 is surrounded by frames on the top, bottom, left and right sides. The upper frame 220 is provided along the upper edge of the board 210 and has a front surface 221 and a rear surface 222. The front surface 221 extends in the left-right direction along the upper end of the front surface 211, above and slightly forward of the front surface 211. That is, the upper frame 220 forms a convex portion that protrudes forward from the front surface 211 (an example of a first surface) of the board 210 in the low partition 200. The rear surface 222 extends in the left-right direction along the upper end of the rear surface 212, above and slightly rearward of the rear surface 212. That is, the upper frame 220 forms a convex portion that protrudes rearward from the rear surface 212 (an example of a second surface) of the board 210 in the low partition 200.

In this embodiment, the upper frame 220 protrudes forward and backward from the board 210. However, this is not limited, and the upper frame 220 may protrude at least one of the front and rear from the board 210. In addition, the protrusion does not have to be formed by the upper frame 220, and the protrusion may be formed integrally with the board 210.

In FIG. 1(C), the convex portion 134LF is spaced downward from the lower end portion 138LF by a distance that is approximately equal to the vertical dimension of the upper frame 220. The convex portion 134LF also protrudes slightly rearward beyond the rear end of the sub-hanging portion 140LF. The amount of protrusion of the convex portion 134LF is approximately equal to the distance in the front-to-rear direction between the front surface 221 and the front surface 211.

[Sub-boards 130LR, 130RF, 130RR]
In FIG. 1C, the sub-board 130LR has a main body 131LR, a sub-slit 132LR, and a sub-hanging portion 140LR.

The main body 131LR and the sub-slit 132LR have a shape that is symmetrical to the main body 131LF and the sub-slit 132LF.

The sub-hanging portion 140LR has a base 133LR and a protruding portion 134LR. The base 133LR and the protruding portion 134LR have a shape that is symmetrical to the base 133LF and the protruding portion 134LF.

Note that sub-slit 132LR and sub-hanging portion 140LR are examples of a second left sub-slit and a second left sub-hanging portion.

The sub-plate 130RF has a main body 131RF, a sub-slit 132RF, and a sub-hanging portion 140RF.

Main body 131RF and sub-slit 132RF are similar to main body 131LF and sub-slit 132LF.

It has a sub-hanging portion 140RF, a base 133RF, and a protruding portion 134RF. The base 133RF and the protruding portion 134RF are similar to the base 133LF and the protruding portion 134LF.

Note that sub-slit 132RF and sub-hanging portion 140RF are examples of the first right sub-slit and the first right sub-hanging portion.

The sub-plate 130RR has a main body 131RR, a sub-slit 132RR, and a sub-hanging portion 140RR.

The main body 131RR and the sub-slit 132RR are similar to the main body 131LR and the sub-slit 132LR.

The sub-hanging portion 140RR has a base portion 133RR and a protruding portion 134RR. The base portion 133RR and the protruding portion 134RR are similar to the base portion 133LR and the protruding portion 134LR.

Note that sub-slit 132RR and sub-hanging portion 140RR are examples of a second right sub-slit and a second right sub-hanging portion.

[Installation of splash prevention device 100]
2A , as a first step, an operator places the reference plate 120 on the upper surface of the upper frame 220 of the low partition 200. At this time, both front and rear edges of the reference plate 120 are aligned with both front and rear edges of the upper surface of the upper frame 220, and both left and right edges of the reference plate 120 are separated from both left and right edges of the upper surface of the upper frame 220.

Next, as shown in FIG. 2B, in the second step, the worker places the sub-boards 130LF and 130LR on the upper surface of the upper frame 220 at a position to the left of the reference plate 120. In detail, the worker abuts the lower end 138LF of the main body 131LF against the upper surface of the upper frame 220 at a position away to the left from the left end of the reference plate 120, and faces the protruding portion 134LF from the front to the front surface 211 of the board 210. The worker abuts the lower end 138LR of the main body 131LR against the upper surface of the upper frame 220 at a position between the left end of the reference plate 120 and the sub-board 130LF, and faces the protruding portion 134LR against the rear surface 212 of the board 210 from the rear.

3A, in the second step, the worker moves the sub-plate 130LF rearward, aligning the rear end of the base 133LF with the front surface 221 of the upper frame 220 from the front, and abutting the rear end of the convex portion 134LF with the front surface 211 of the board 210 from the front. The worker also moves the sub-plate 130LR forward, aligning the front end of the base 133LR with the rear surface 222 of the upper frame 220 from the rear, and abutting the front end of the convex portion 134LR with the rear surface 212 of the board 210 from the rear. The worker also overlaps the sub-plates 130LF and 130LR with each other in the left-right direction, thereby forming the left support plate 130L on the left side of the reference plate 120 in the upper frame 220. At this time, the sub-slit 132LF (see FIG. 2B) of the sub-plate 130LF and the sub-slit 132LR (see FIG. 2B) of the sub-plate 130LR overlap perfectly with no substantial misalignment in the front-to-back and up-down directions to form the slit 132L (see FIG. 3B) of the left support plate 130L.

In the second step, the worker places the sub-plates 130RF and 130RR on the upper surface of the upper frame 220 at the right side of the reference plate 120 in the same manner as described above. After that, the worker moves the sub-plate 130RF backward, aligning the rear end of the base 133RF with the front surface 221 of the upper frame 220 from the front, and abutting the rear end of the convex portion 134RF with the front surface 211 of the board 210 from the front. The worker also moves the sub-plate 130RR forward, aligning the front end of the base 133RR with the rear surface 222 of the upper frame 220 from the rear, and abutting the front end of the convex portion 134RR with the rear surface 212 of the board 210 from the rear. The worker also overlaps the sub-plates 130RF and 130RR with each other in the left-right direction, thereby forming the right support plate 130R on the right side of the reference plate 120 in the upper frame 220. At this time, the sub-slits 132RF and 132RR overlap perfectly to form the slit 132R (see Figure 3 (B)) in the right support plate 130R.

In the third step, as shown in FIG. 3(B), the worker aligns the position of the slit 132L in the left support plate 130L with the position of the slit 112L in the transparent panel 110, and aligns the position of the slit 132R in the right support plate 130R with the position of the slit 112R in the transparent panel 110.

In the third step, as shown in FIG. 4, the worker engages and meshes the slit 112L of the transparent panel 110 with the slit 132L of the left support plate 130L, and engages and meshes the slit 112R of the transparent panel 110 with the slit 132R of the right support plate 130R. After that, the worker moves the transparent panel 110 downward until the upper ends of the slits 112L and 112R abut against the lower ends of the slits 132L and 132R.

Then, in the fourth step, as shown in FIG. 4, the worker removes the reference plate 120 from the upper surface of the upper frame 220. This completes the assembly of the splash prevention device 100.

In the embodiment, the vertical dimension of slit 112L in transparent panel 110 (hereinafter also referred to as "slit length") is the same as the vertical distance from the lower end of slit 132L to lower ends 138LF, 138LR. Also, the slit length of slit 112R in transparent panel 110 is the same as the vertical distance from the lower end of slit 132R to lower ends 138RF, 138RR. This substantially eliminates the gap between transparent panel 110 and the upper surface of upper frame 220.

[Modification]
The following describes the modifications of the embodiment, focusing on the differences from the embodiment.

In the modified example, as shown in FIG. 5, a groove 240 is formed in the front surface 221 of the upper frame 220, extending in the left-right direction at an intermediate position a distance below the upper end. Hereinafter, the dimensions of the groove 240 in the up-down and front-rear directions are also referred to as the "groove width" and "groove depth". The groove width and groove depth are approximately constant over the entire area of the groove 240 in the left-right direction. A groove (not shown) that is symmetrical to the groove 240 in the front-rear direction is formed in the rear surface 222.

In the case of the low partition 200 as described above, as shown in FIG. 6, in the sub-board 130LF, the sub-hanging portion 140LF may further have a convex portion 139LF (an example of a first left convex portion). The convex portion 139LF is an example of a first left convex portion, and is spaced downward from the lower end portion 138LF by a separation distance. The convex portion 139LF protrudes rearward beyond the base portion 133LF and the convex portion 134LF. The up-down and front-to-back dimensions of the convex portion 139LF are approximately the same as the groove width and groove depth.

In sub-plate 130LR, sub-hanging portion 140LR further has convex portion 139LR (an example of a second left convex portion). Convex portion 139LR has a shape that is symmetrical to convex portion 139LF. In sub-plate 130RF, sub-hanging portion 140RF further has convex portion 139RF (an example of a first right convex portion). Convex portion 139RF has the same shape as convex portion 139LF. In sub-plate 130RR, sub-hanging portion 140RR further has convex portion 139RR (an example of a second right convex portion). Convex portion 139RR has the same shape as convex portion 139LR.

The protrusions 139LF and 139RF engage with the recessed groove 240, and the protrusions 139LR and 139RR engage with the recessed groove of the rear surface 222. This positions the splash prevention device 100 in the vertical direction relative to the low partition 200, making it difficult for the splash prevention device 100 to come off from the low partition 200.

[Actions and Effects of the Splash Prevention Device 100]
According to the splash prevention device 100, the transparent panel 110 can prevent splashes beyond the low partition 200. In addition, the transparent panel 110 suppresses the feeling of oppression given to the desk user, and does not hinder communication with the users of other desks. In addition, since the existing low partition 200 can be utilized, the splash prevention device 100 is low-cost. In addition, since the left support plate 130L and the right support plate 130R are made of the same acrylic plate as the transparent panel 110, the splash prevention device 100 before installation is not bulky. In addition, since the slits 112L and 132L engage with each other and the slits 112R and 132R engage with each other, the transparent panel 110 is unlikely to be misaligned with respect to the left support plate 130L and the right support plate 130R.

The pair of protrusions 134LF, 134LR and the pair of protrusions 134LR, 134RR each abut against and clamp the board 210 below the upper frame 220. The upper frame 220 also protrudes in the front-to-rear direction relative to the board 210. This prevents the splash prevention device 100 from coming off upward from the low partition 200, making it less likely to fall off the low partition 200.

In particular, in this embodiment, the protrusions 134LF, 134LR and the protrusions 134RF, 134RR are inserted into the grooves of the low partition 200. This positions the left support plate 130L and the right support plate 130R in the vertical direction relative to the low partition 200, making them less likely to come off the low partition 200.

The splash prevention device 100 is entirely transparent. Therefore, the splash prevention device 100 can be attached to a low partition 200 of any color without appearing out of place. The splash prevention device 100 may be made of materials other than transparent materials.

[Other Modifications]
In the embodiment, the sub-plates 130LF, 130LR, 130RF, and 130RR have the same shape. However, this is not limited to the above, and at least two of the sub-plates 130LF, 130LR, 130RF, and 130RR may have shapes different from each other.

In the embodiment, the rear end or front end of each base 133LF, 133LR, 133RF, 133RR of the sub-plates 130LF, 130LR, 130RF, 130RR abuts against the front surface 221 or rear surface 212 of the upper frame 220, but each base 133LF, 133LR, 133RF, 133RR may face the front surface 221 or rear surface 212 of the upper frame 220 through a gap without abutting against them.

In the embodiment, the low partition 200 is installed on the desktop 300. However, this is not limited to the above, and the splash prevention device 100 may be attached to the upper surface of a partition installed on the floor instead of the low partition 200.

In the embodiment, the vertical dimension of the transparent panel 110 is described as being larger than the vertical dimension of the low partition 200. However, this is not limited thereto, and the vertical dimension of the transparent panel 110 may be smaller than the vertical dimension of the low partition 200.

300: Desktop 200: Low partition 210: Board 220: Upper frame 211, 221: Front surface 212, 222: Rear surface 240: Groove 100: Splash prevention device 110: Transparent panel 111: Main surface 112L, 112R: Slit 120: Reference plate 130LF, 130LR, 130RF, 130RR: Sub-plate 132L, 132R: Slit 132LF, 132LR, 132RF, 132RR: Sub-slit 140LF, 140LR, 140RF, 140RR: Sub-hanging portion 134LF, 134LR, 134RF, 134RR: Convex portion 139LF, 139LR, 139RF, 139RR: Convex portion

Claims (6)

A splash prevention device that is attached to a partition and has a first surface and a second surface that extend in the up-down direction and the left-right direction and are spaced apart from each other in the front-rear direction , and an upper frame that protrudes forward from the first surface and rearward from the second surface ,
a transparent panel having a main surface extending in the up-down direction and the left-right direction above the upper frame, and a first left slit and a first right slit extending in the up-down direction from a lower end and arranged at an interval in the left-right direction;
a left first sub-board and a left second sub-board that are placed on the upper frame and overlap each other in the left-right direction;
a right first sub-board and a right second sub-board that are placed on the upper frame to the right of the left first sub-board and the left second sub-board and overlap each other in the left-right direction,
The left first sub-plate is,
a first left sub-slit extending in a vertical direction from an upper end and engaging with the first left slit;
a first left sub-hanging portion that is in contact with the first surface of the partition below the upper frame below the first left sub-slit,
The left second sub-plate is,
a second left sub-slit extending in a vertical direction from an upper end and engaging with the first left slit;
a second left sub-hanging portion that is below the second left sub-slit, below the upper frame of the partition, and abuts against the second surface;
The right first sub-plate is,
a first right sub-slit extending in the up-down direction from an upper end and engaging with the first right slit;
a first right sub-hanging portion that is in contact with the first surface of the partition below the upper frame below the first right sub-slit,
The right second sub-plate is,
a second right sub-slit extending in the vertical direction from the upper end and engaging with the first right slit;
A splash prevention device having a second right sub-hanging portion below the first right sub-slit and abutting the second surface below the upper frame of the partition. The partition has a groove extending in the left-right direction on the first surface,
the first left sub-hanging portion has a left convex portion adapted to be engaged with the concave groove,
The splash prevention device according to claim 1 , wherein the first right sub-hanging portion has a right convex portion that engages with the groove. The splash prevention device according to claim 1 or 2, wherein the left first sub-plate, the left second sub-plate, the right first sub-plate, and the right second sub-plate have the same shape. The splash prevention device according to any one of claims 1 to 3, wherein the left first sub-plate, the left second sub-plate, the right first sub-plate, and the right second sub-plate are transparent. The partition is installed on the top of a desk.
5. A splash prevention device according to claim 1, wherein the vertical dimension of the transparent panel is greater than the vertical dimension of the partition. A method for installing the splash prevention device according to any one of claims 1 to 5 in a partition, comprising the steps of:
a first step of placing a reference plate having a length corresponding to an interval between the first left slit and the first right slit on an upper surface of the upper frame;
a second step of placing the left first sub-plate and the left second sub-plate on the upper surface of the upper frame at a position to the left of the reference plate, and placing the right first sub-plate and the right second sub-plate on a position to the right of the reference plate;
a third step of engaging a first left slit of the transparent panel with the first left sub-slit and the second left sub-slit, and engaging a first right slit of the transparent panel with the first right sub-slit and the second right sub-slit;
and a fourth step of removing the reference plate from the upper surface of the upper frame.

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