Desktop covering apparatus and covering

Abstract

To provide a storable desktop cover body device capable of surely partitioning a space on a desk in a self-standing manner.SOLUTION: The desktop cover body device 10 includes a pair of bases 11,11, and a cover body 15 stretched between the pair of bases 11,11 and curved upward. The cover body 15 forms a rectangular shape having four sides in a free state, and can be wound.SELECTED DRAWING: Figure 2A

Description

[Technical Field]

[0001] The present disclosure relates to a desk covering device and covering that is placed on the installation surface of a desk. [Background technology]

[0002] Conventionally, desk covers have been used to divide the space above a desk. There is a demand for such desk cover devices that can be easily stored and can stand on their own to reliably divide the space above the desk. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3220560 [Patent Document 2] Utility Model Registration No. 3234956 [Patent Document 3] Utility Model Registration No. 3231397 [Patent Document 4] Japanese Patent Publication No. 2023-18207 Summary of the Invention [Problem to be solved by the invention]

[0004] However, no desk cover device or cover has been developed that can be easily stored, is self-supporting, and can reliably separate the desk space from the outside.

[0005] The present disclosure has been made with these points in mind, and aims to provide a desk cover device and cover that can be easily stored, stand on its own, and reliably separate the space on a desk from the outside. [Means for solving the problem]

[0006] The present disclosure relates to a tabletop cover device comprising at least a pair of bases and a cover that is stretched between the pair of bases and curves upward, wherein the cover has a planar shape with four sides when removed from the at least a pair of bases in a free state and is rollable, and the cover stands on its own in the curved state stretched across the at least a pair of bases.

[0007] The present disclosure is a tabletop cover device, wherein the cover has linear folds.

[0008] The present disclosure relates to a tabletop cover device in which the cover has a pair of linear folds that intersect with each other, each fold being inclined relative to each side, and where x is the shortest distance between the intersection of the pair of folds and the center of the cover and L is the length of the diagonal of the cover, 0≦x≦0.25×L.

[0009] The present disclosure provides a method for manufacturing a cover having a bending rigidity of 3.0 N·m 2 More than 4300N m 2 The tabletop cover device is as follows:

[0010] The present disclosure is a tabletop cover device in which the cover has a total light transmittance of 60% or more.

[0011] The present disclosure is a tabletop covering device, in which the haze value of the covering is 30% or more.

[0012] The present disclosure provides a covering body that has a planar shape with four sides in a free state, is rollable, and stands on its own in a curved state.

[0013] The present disclosure relates to a covering body having linear folds.

[0014] The present disclosure provides a cover having a pair of linear folds that intersect with each other, each fold being inclined with respect to each side, and the shortest distance between the intersection of the pair of folds and the center of the cover is defined as x, and the length of the diagonal of the cover is defined as L. It is a covering body in which 0≦x≦0.25×L.

[0015] The present disclosure provides a method for manufacturing a cover having a bending rigidity of 3.0 N·m 2 More than 4300N m 2 The covering body is as follows.

[0016] The present disclosure provides a covering body having a total light transmittance of 60% or more.

[0017] The present disclosure provides a covering body, the covering body having a haze value of 30% or more. [Effects of the Invention]

[0018] As described above, the desk cover device and cover according to the present disclosure can be easily stored, stand on its own and reliably separate the desk space from the outside. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view showing an embodiment of a tabletop cover device according to the present disclosure. [Figure 2A] FIG. 2A is a front view of an embodiment of a tabletop cover device according to the present disclosure. [Figure 2B] FIG. 2B is a plan view showing the cover in a free state. [Figure 3A] FIG. 3A shows a curved film or sheet for determining the second moment of area. [Figure 3B] Figure 3B is a cross-sectional view of a film or sheet for determining the second moment of area. [Figure 4] FIG. 4 is a diagram showing the state in which the cover is rolled up. [Figure 5] FIG. 5 is a diagram showing the thickness, Young's modulus, second moment of area, and bending rigidity of films a to e. [Figure 6A] FIG. 6A is a diagram showing a method for measuring the self-supporting ability of a covering body. [Figure 6B] FIG. 6B is a diagram showing a method for measuring the self-supporting ability of the covering body. [Figure 6C] FIG. 6C is a diagram showing a method for measuring the self-supporting ability of the covering body. [Figure 7] FIG. 7 is a diagram showing the shapes of the folds of the film A-1, the films B-1 to B-4, and the films C-1 to C-8 that constitute the covering body. [Figure 8] Figure 8 is an enlarged view showing the shape of the folds in the B-1 film. [Figure 9] FIG. 9 shows a configuration in which one of a pair of bases has a winding mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a tabletop cover device and a cover according to the present disclosure will be described with reference to the drawings.

[0021] 1-7 show an embodiment of a tabletop cover device and cover according to the present disclosure.

[0022] First, a desk cover device 10 will be described with reference to Figures 1 to 2B. As shown in Figures 1 to 2B, the desk cover device 10 according to the present disclosure is placed on a desk 1. When a worker P sitting at the desk 1 operates a device such as a PC 2 placed on the desk 1, the desk cover device 10 functions to separate a space 20 in which the worker P operates from the outside.

[0023] By partitioning off the space 20 on the desk 1 from the outside in this way, the worker can concentrate on operating the PC 2 without worrying about being seen by others.

[0024] Such a tabletop cover device 10 includes a pair of bases 11, 11 placed on a table 1, and a cover 15 that is placed between the pair of bases 11, 11 and curves upward.

[0025] In this embodiment, the covering body 15 has an overall rectangular planar shape in a free state when detached from the pair of bases 11, 11. Specifically, in this embodiment, the covering body 15 has a rectangular shape having two long sides 15a and two short sides 15b. Here, the free state refers to a state in which the covering body 15 has been detached from the pair of bases 11, 11 and is not restrained by an external structure. Note that, although the covering body 15 has a rectangular planar shape as described above, for example, the four corners of the rectangle may be chamfered or may be rounded.

[0026] The pair of bases 11, 11 are provided with slits 11a, 11a that open upward. The cover 15 is held by the pair of bases 11, 11 by inserting its short side 15b into the slits 11a, 11a of the pair of bases 11, 11. At the same time, the cover 15 is placed between the pair of bases 11, 11 and curves upward. The cover 15 may be held by the pair of bases 11, 11 by inserting its long side 15a between the slits 11a, 11a of the pair of bases 11, 11. The cover 15 may be configured to curve upward immediately from the slits 11a, 11a of the pair of bases 11, 11, or may be configured to rise vertically upward from the slits 11a, 11a of the pair of bases 11, 11 and then curve upward near the upper portion.

[0027] In this embodiment, the pair of bases 11, 11 are made of metal, for example, aluminum or copper, or alternatively, the pair of bases 11, 11 can be molded from synthetic resin.

[0028] Next, we will discuss the cover 15. When the worker P operates the PC 2 or the like placed on the desk 1, the cover 15 separates the space 20 on the desk 1 where the worker P works from the outside.

[0029] Therefore, the cover 15 has a width W of 40 to 100 cm and a height H of 40 to 80 cm when it is stretched across the pair of bases 11, 11 (restrained state) (see FIG. 2A).

[0030] In addition, in a free state when removed from the pair of bases 11, 11, the cover 15 has a rectangular shape with long sides 15a of 60 to 160 cm and short sides 15b of 30 to 130 cm.

[0031] In this embodiment, "above" and "below" refer to the "above" and "below" positions when the table cover device 10 is placed on the table 1 in the state shown in Figs. 1 and 2A.

[0032] The cover 15 of the tabletop cover device 10 will now be further described below.

[0033] The cover 15 separates the space 20 in which the worker P operates the PC 2 or the like placed on the desk 1 from the outside when the worker P operates the PC 2 or the like placed on the desk 1, and has the function of being able to bend upward when placed between a pair of bases 11, 11 (see Figures 1 and 2A).

[0034] 1, when the cover 15 is placed between the pair of bases 11, 11, it curves upward to separate the space 20 on the desk 1 from the outside. In this case, it also has the function of blocking the eyes of people outside looking into the space 20 so that the worker P can concentrate on operating the PC 2 and the like placed on the desk 1.

[0035] On the other hand, the space 20 above the desk 1 partitioned by the cover 15 is the space 20 where the worker P operates the PC 2, etc., and therefore a certain degree of brightness is required in the space 20 partitioned by the cover 15. For this reason, the cover 15 also has the function of transmitting some light from outside.

[0036] Furthermore, if the covering body 15 is crushed between the pair of bases 11, 11 when it is placed between the pair of bases 11, 11, it will not be possible to reliably form the space 20. For this reason, the covering body 15 also needs to have the function of being structurally independent between the pair of bases 11, 11 when it is placed between the pair of bases 11, 11. Here, the function of the covering body 15 being structurally independent means that when the covering body 15 is placed between the pair of bases 11, 11, it will not be structurally crushed due to the gravity of the covering body 15 itself and will maintain its shape.

[0037] When the tabletop cover device 10 is not in use, the cover 15 is removed from the pair of bases 11, 11, and is wound around the outer periphery of the winding shaft 16 shown in Fig. 4 and stored in a suitable storage box (not shown). Alternatively, as shown in Fig. 9, a winding mechanism 11B provided in one of the pair of bases, base 11A, may be used to manually or automatically guide the cover 15 into base 11A through slit 11a, and the cover 15 may be wound up by winding mechanism 11B.

[0038] For this reason, the cover 15 must be flexible enough to be rolled up and stored (see FIG. 4).

[0039] Although FIG. 4 shows an example in which the cover 15 is wound around the outer periphery of the winding shaft 16, the cover 15 may be wound up without using the winding shaft 16 and stored in a suitable storage box.

[0040] The covering body 15 must have the functions described above, namely, the ability to shield the eyes of people outside, the ability to transmit a certain amount of light from the outside, the ability to be structurally independent between the pair of bases 11, 11, and the ability to be rolled up with a certain degree of flexibility for storage in a storage box.

[0041] Examples of materials that can be used to form the cover 15 having such functions include acrylic (PMMA), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), and polyethylene (PE). These materials that form the cover 15 may be foamed or may contain additives.

[0042] (Total light transmittance and haze value) As described above, the covering body 15 must have the function of blocking the eyes of people outside, and therefore the covering body 15 preferably has a haze value of 30% or more and 90% or less.

[0043] In this case, if the haze value is less than 30%, it is not possible to reliably block the eyes of people outside, while if it exceeds 90%, light from the outside will not enter the cover 15 .

[0044] Also, the cover 15 must have a function of transmitting light to a certain extent, and therefore the cover 15 must have a total light transmittance of 60% or more and 90% or less.

[0045] In this case, if the total light transmittance is less than 60%, the space 20 partitioned by the covering body 15 will become dark, reducing the workability of the worker P. On the other hand, if the total light transmittance is 60% or more, the illuminance at hand can be maintained at 300 lx or more, as specified in the occupational health standards of the Ministry of Health, Labor and Welfare.

[0046] On the other hand, if a cover 15 with a total light transmittance of more than 90% is used, it is not possible to reliably block the eyes of people outside. (self-standing and retractable) As described above, when the cover 15 is placed between the pair of bases 11, 11, it must have the function of being able to stand on its own without collapsing in order to reliably form the space 20.

[0047] Similarly, when not in use, the cover 15 is stored in a storage box, so it needs to have a winding function.

[0048] In this embodiment, seven types of rectangular films, each A4 size (297 mm × 210 mm), namely, film a, film b, film c, film d, film e, film f, film g, and one type of sheet h, were prepared, and the thickness, Young's modulus, moment of inertia in area, and bending rigidity were measured for each. The results are shown in a table in Figure 5. Here, bending rigidity = second moment of area × Young's modulus (modulus of longitudinal elasticity). Regarding the second moment of area, when a film or sheet with length l, width w, and thickness t is bent in the Z direction as shown in Figures 3A and 3B, the second moment of area is (1 / 12) × w × t. 3 3A, the X direction is the length direction and the Y direction is the width direction. In this embodiment, the length l of the film or sheet to be bent to determine the bending rigidity is 297 mm. In the present embodiment, the Young's modulus of the film and sheet can be measured using an Instron tensile tester under the following measurement conditions. Measurement equipment: Instron Japan universal material testing machine 5565 Load cell: 1kN Sample width: 15mm Chuck distance: 80mm ·Speed: 200mm / min

[0049] In Figure 5, film a is made of polyvinyl chloride, film b is made of polypropylene, film c is made of polypropylene, film d is made of polypropylene, film e is made of polyethylene, film f is made of polyethylene terephthalate, film g is made of polypropylene, and sheet h is made of Japanese paper.

[0050] In Figure 5, the thickness of each film, Film a, Film b, Film c, Film d, Film e, Film f, Film g, and Sheet h, is expressed in μm, Young's modulus is expressed in MPa, and moment of inertia is m 4The bending stiffness is expressed as N·m 2 Furthermore, none of the films a to h have folds, which will be described later, and the films a to h are made of pure film.

[0051] Of the seven types of film and one type of sheet shown in Figure 5, film a and film b have sufficient rigidity to be able to stand on their own in a curved state, but their rigidity is too high to be rolled up.

[0052] Films c, d, e, and f were found to have adequate flexibility and could be wound up, and to have a certain degree of self-supporting ability in a curved state. On the other hand, film g and sheet h were flexible and could be wound up, but were unable to support themselves in a curved state.

[0053] In this embodiment, among the films a to h, the films c, d, e, and f can be used as the material for the cover 15 (see FIG. 5).

[0054] For this reason, the covering body 15 preferably has a bending rigidity of 3.0 N·m 2 More than 4300N m 2 The following is the result.

[0055] That is, the material of the cover 15 has a bending rigidity of 4300 N·m 2 When film a or film b exceeding this value is used, it is rigid but cannot be wound up.

[0056] On the other hand, the material of the cover 15 has a bending rigidity of 3.0 N·m 2 When a film having a thickness of less than 1 / 2 mm, i.e., film g or sheet h, is used, it is not possible to maintain its self-supporting property in a curved state.

[0057] Here, the self-supporting property of the cover 15 will be explained with reference to FIGS. 6A to 6C.

[0058] 6A to 6C are diagrams showing a method for measuring the self-supporting ability of a covering.

[0059] 6A to 6C, a rectangular film 15A with long sides 15a:short sides 15b=297:210 was prepared to measure the self-supporting ability of the cover 15. This film 15A was A4 size (297 mm x 210 mm).

[0060] A pair of short sides 15b of film 15A was held by clips 40, and clips 40 holding short sides 15b of film 15A were fixed onto desk 1. In this embodiment, a double clip measuring 25 mm x 32 mm was used.

[0061] In this embodiment, film 15A has long side 15a with a length L1 and short side 15b with a length L2.

[0062] Furthermore, the four clips 40 that hold the short side 15b of the film 15A are all attached at a position L2 / 4 from the end of the short side 15b (see FIG. 6A).

[0063] Furthermore, at short side 15b of film 15A, each clip 40 protrudes toward film 15A by 5 mm to grip film 15A (see FIG. 6B).

[0064] As described above, by holding a pair of short sides 15b of film 15A using four clips 40 and fixing the clips 40 holding short sides 15b of film 15A onto desk 1, film 15A can be curved upward on desk 1.

[0065] In this way, by holding a pair of short sides 15b with four clips 40, film 15A can be configured to be curved upward on desk 1 (see FIG. 6C).

[0066] In FIG. 6C, film 15A fixed on desk 1 has a semicircular shape when viewed from the front, and film 15A has a width W1 and a height H1.

[0067] As shown in FIG. 6C, the ratio of width W1 to height H1 of film 15A is 1:1.

[0068] After creating film 15A in this manner, which was curved upward, on desk 1, film 15A was left in this state for a predetermined time (for example, 10 seconds), and the self-supporting ability of film 15A was measured to determine whether it had been crushed. In this embodiment, film 15A that is curved upward on desk 1 and maintains that shape after a predetermined time has passed is deemed to be self-supporting. On the other hand, film 15A that collapses after the predetermined time has passed is deemed to be non-self-supporting.

[0069] The self-supporting property of the cover 15 will be further described. As described above, when the cover is placed over the pair of bases 11, 11, it is structurally self-supporting between the pair of bases 11, 11. In other words, it is necessary for the cover to have a function that does not collapse.

[0070] In this embodiment, in order to improve the self-standing property of the cover 15, linear folds 30 are formed on the surface of the cover 15.

[0071] The linear folds 30 formed on the surface of the cover 15 are formed by folding the cover 15 in advance.

[0072] Next, to confirm the self-supporting ability of covering body 15 when various folds 30 were formed on the surface of covering body 15, a rectangular film 15A having long sides 15a and short sides 15b was prepared to constitute covering body 15. Then, folds 30 were formed in film 15A, and the self-supporting ability of film 15A was measured using the method shown in Figures 6A to 6C.

[0073] In this embodiment, films 15A A-1, B-1 to B-4, and C-1 to C-8 each having a different fold 30 shape were prepared, and the self-supporting ability of each film 15A was measured using the method shown in Figures 6A to 6C.

[0074] In this embodiment, the film 15A of A-1, the films 15A of B-1 to B-4, and the films 15A of C-1 to C-8 all correspond to a film f made of polyethylene terephthalate having a thickness of 38 μm. This film f has a bending rigidity of 2.947 N·m even in its pure state, i.e., in an unfolded state. 2 The values ​​are shown. Also, film 15A A-1, films 15A B-1 to B-4, and films 15A C-1 to C-8 all have the same external dimensions. That is, film 15A A-1, films 15A B-1 to B-4, and films 15A C-1 to C-8 are all rectangular with long sides 15a and short sides 15b.

[0075] The shapes of folds 30 of film 15A A-1, films 15A B-1 to B-4, and films 15A C-1 to C-8 are shown in FIGS.

[0076] Here, FIG. 7 is a diagram showing the shapes of folds 30 in film 15A A-1, films 15A B-1 to B-4, and films 15A C-1 to C-8, and FIG. 8 is an enlarged view of film 15A B-1.

[0077] As for the films 15A C-1 to C-8 shown in FIG. 7, there was no significant difference between any of the films 15A C-1 to C-8, and the self-supporting properties of the films 15A were confirmed.

[0078] All of the films 15A of C-1 to C-8 have at least one pair of linear folds 30, which improves the bending rigidity of the film, and as a result, these folds 30 improve the self-supporting ability of the film 15A.

[0079] Specifically, film 15A of C-1 has two perpendicular linear folds 30, each extending parallel to long side 15a and short side 15b of film 15A, and the two folds 30 intersect at intersection 31.

[0080] The film 15A of C-2 has two parallel linear folds 30, each extending parallel to the long side 15a.

[0081] Film 15A of C-3 has one linear fold 30, which extends parallel to short side 15b.

[0082] Film 15A of C-4 has one linear fold 30, which extends parallel to long side 15a.

[0083] The film 15A of C-5 has three linear folds 30, the central fold 30 extending parallel to the short side 15b, and the other pairs of folds 30 inclined relative to the long side 15a and the short side 15b.

[0084] Film 15A of C-6 has two linear folds 30, each of which is inclined relative to long side 15a and short side 15b.

[0085] Film 15A of C-7 has one linear fold 30 that extends along diagonal line 32.

[0086] The film 15A of C-8 has two linear folds 30, one of which extends along a diagonal line 32 of the film 15A. The other fold 30 is inclined relative to the long side 15a and the short side 15b.

[0087] In addition, in film 15A of C-8, the distance between intersection 31 of two folds 30 and intersection 33 of diagonal lines 32, 32 of film 15A (also referred to as the center of film 15A) is defined as x.

[0088] Furthermore, if the length of the diagonal line 32 of the film 15A is L, then x=0.4×L.

[0089] Furthermore, for films 15A B-1 to B-4 shown in Figure 7, there was no significant difference between any of films 15A B-1 to B-4, and all of films 15A had improved bending rigidity compared to films 15A C-1 to C-8, resulting in significantly improved self-supporting ability.

[0090] Of these, film 15A of B-1 has a pair of linear folds 30 that intersect with each other, one of which extends along a diagonal line 32 of film 15A, and the other fold 30 is inclined relative to long side 15a and short side 15b.

[0091] In addition, in film 15A of B-1, if the distance between the intersection 31 of a pair of folds 30 and the intersection 33 of diagonals 32, 32 of film 15A is x and the length of diagonal 32 of film 15A is L, then x = 0.1 × L.

[0092] Furthermore, film 15A of B-2 has two pairs of linear folds 30 that intersect with each other. Each fold 30 is inclined with respect to long side 15a and short side 15b. In film 15A of B-2, the shortest distance between intersection 33 of diagonals 32, 32 of film 15A and intersection 31 of two folds 30 is defined as x, and the length of diagonal 32 of film 15A is defined as L, so that x = 0.2 × L.

[0093] Furthermore, film 15A of B-3 has a pair of mutually intersecting linear folds 30. Each fold 30 is inclined with respect to long side 15a and short side 15b.

[0094] In addition, in film 15A of B-3, if the distance between the intersection 33 of diagonal lines 32, 32 of film 15A and the intersection 31 of one fold 30 is x and the length of diagonal line 32 of film 15A is L, then x = 0.25 × L.

[0095] The film 15A of B-4 also has a pair of intersecting linear folds 30. Both folds extend along a diagonal line 32 of the film 15A.

[0096] In addition, in film 15A of B-4, intersection 33 of diagonal lines 32, 32 of film 15A coincides with intersection 31 of two folds 30, and the distance x between intersection 33 and intersection 31 is zero.

[0097] In films 15A B-1 to B-4, each film 15A has multiple straight folds 30 that intersect with each other, and if the distance between the intersection 33 of the diagonal of film 15A and the intersection 31 of two folds 30 is x and the length of diagonal 32 of film 15A is L, then 0≦x≦0.25×L holds.

[0098] All of the films 15A B-1 to B-4 exhibited high structural self-supporting properties.

[0099] Furthermore, film 15A A-1 shown in FIG. 7 exhibited significantly improved bending rigidity compared to films 15A C-1 to C-8 and films 15A B-1 to B-4, and as a result exhibited exceptionally high self-supporting ability.

[0100] The film 15A of A-1 has six linear folds 30, and these six linear folds 30 consist of three pairs of linear folds 30 that intersect with each other.

[0101] Additionally, all of the linear folds 30 are inclined relative to the long sides 15a and the short sides 15b.

[0102] In addition, in film 15A of A-1, the shortest distance x between intersection 33 of diagonal lines 32, 32 of film 15A and intersection 31 of two folds 30 is zero.

[0103] As described above, film 15A A-1 and films 15A B-1 to B-4 all have at least one pair of mutually intersecting straight folds 30. If the shortest distance between the intersection 33 of diagonal lines 32, 32 of film 15A and the intersection of the pair of folds 30 is x, and the length of diagonal line 32 of film 15A is L, then: 0≦x≦0.25×L, and the bending rigidity of film 15A of A-1 and film 15A of B-1 to B-4 all improved, demonstrating high self-supporting properties. Next, we will discuss film g and sheet h in more detail. As shown in Figure 5, film g is made of polypropylene, has a thickness of 20 μm, and a bending rigidity of 0.2667. Sheet h is made of Japanese paper, has a thickness of 50 μm, and a bending rigidity of 2.749. Thus, film g and sheet h, in their unfolded state, have a bending rigidity of 3.0 N·m 2 More than 4300N m 2 However, by providing film g with the fold pattern shown in Figure 7, for example, the same fold pattern as films C-1, C-2, C-6, B-2, B-3, and B-4, the bending rigidity is improved to 3.0 N·m 2 More than 4300N m 2 In addition, by providing the film g with the fold pattern shown in Figure 7, for example, a fold pattern similar to that of films A-1 and B-1, the bending rigidity was further improved to 3.0 N·m 2 More than 4300N m 2 In addition, by providing the sheet h with the fold pattern shown in Figure 7, for example, the same fold pattern as the films C-1, C-2, C-4, C-5, C-6, and C-8, the bending rigidity was improved to 3.0 N·m 2 More than 4300N m 2 In addition, by providing the sheet with the fold pattern shown in Figure 7, for example, the same fold pattern as the films C-7, B-1, B-2, B-3, and B-4, the bending rigidity was further improved to 3.0 N·m 2 More than 4300N m 2In addition, by providing the sheet h with the fold pattern shown in Figure 7, for example, a fold pattern similar to that of the film A-1, the bending rigidity was further improved to 3.0 N·m 2 More than 4300N m 2 It was found to fall within the following range:

[0104] Next, the operation of this embodiment having the above-described configuration will be described.

[0105] First, a pair of bases 11, 11 are placed on the desk 1, and the short sides 15b of the cover 15 are inserted into the slits 11a of each base 11, 11. In this way, the cover 15 can be held by each base 11, 11, and the cover 15 can be curved upward. In this way, a tabletop cover device 10 is obtained on the desk 1, which forms a space 20 on which the worker P can operate.

[0106] In this embodiment, the cover 15 has a total light transmittance of 60% or more and 90% or less, so the space 20 partitioned by the cover 15 does not become dark and the workability of the worker P does not decrease.

[0107] Furthermore, since the covering body 15 has a haze value of 30% or more and 90% or less, the inside of the space 20 can be reliably shielded from the eyes of people outside, and external light can be appropriately guided into the space 20.

[0108] Furthermore, the bending rigidity of the cover 15 is 3.0 N·m 2 More than 4300N m 2 Therefore, when the cover 15 is held by the pair of bases 11 and curved upward, the cover 15 can be made to stand on its own to a certain extent, and the structure will not collapse and the cover 15 can maintain its shape. In other words, the cover 15 can stand on its own.

[0109] On the other hand, after using the tabletop cover device 10, the cover 15 is removed from the pair of bases 11, 11. In this case, since the cover 15 is also flexible, the cover 15 can be rolled up and stored in a storage box.

[0110] Furthermore, when the desk cover device 10 is installed on the desk 1, the cover 15 of the desk cover device 10 forms a semicircle when viewed from the worker P (see FIGS. 1 and 2A). This allows a compact and comfortable space (work space) 20 to be formed on the desk 1 for the worker sitting at the desk 1. Furthermore, as described above, this space 20 is shielded from the eyes of outsiders while maintaining a comfortable brightness. This allows the worker to comfortably operate the PC 2 and the like on the desk 1, significantly increasing work efficiency.

[0111] Furthermore, as shown in Figures 7 and 8, when the covering body 15 is made of the same material and is made of a rectangular film 15A having long sides 15a and short sides 15b and the same outer dimensions and thickness, by providing linear folds 30 in advance on the surface of the covering body 15, the bending rigidity of the covering body 15 can be increased, and the structural independence can be further improved.

[0112] In this case, a pair of linear folds 30 that intersect with each other are provided on the surface of the cover 15, and each fold 30 is inclined with respect to each side 15a, 15b of the rectangular film 15A. When the shortest distance between the intersection 31 of the pair of folds 30 and the center 33 of the film 15A that constitutes the cover 15 is defined as x, and the length of the diagonal 32 of the film 15A is defined as L, By satisfying the condition 0≦x≦0.25×L, the bending rigidity can be increased, and the structural independence of the cover 15 can be further improved. [Explanation of symbols]

[0113] 1 desk 2 PC 10. Tabletop cover device 11 Foundation 11A base 11B Winding mechanism 11a Slit 15 Covering Body 15A film 15a Long side 15b Short side 20 Space 30 folds 31 intersection 32 Diagonal 33 intersection 40 clips x distance L Diagonal length

Claims

1. In the tabletop cover device, At least one pair of bases; a cover body that is curved upward and that is disposed between the at least one pair of bases; The cover has a planar shape having four sides in a free state when detached from the pair of bases, and is rollable. The tabletop cover device is configured so that the cover can stand on its own in a curved state across the at least one pair of bases.

2. 2. The tabletop cover device of claim 1, wherein the cover has linear folds.

3. The cover has a pair of linear folds that intersect with each other, each fold being inclined with respect to each side, and when the shortest distance between the intersection of the pair of folds and the center of the cover is defined as x and the length of the diagonal of the cover is defined as L, 2. The tabletop cover device of claim 1, wherein 0≦x≦0.25×L.

4. The bending rigidity of the cover is 3.0 N·m ２ Above, 4300N・m ２ 2. The tabletop cover device of claim 1, wherein:

5. 2. The tabletop cover device according to claim 1, wherein the cover has a total light transmittance of 60% or more.

6. 2. The tabletop covering device according to claim 1, wherein the covering has a haze value of 30% or more.

7. The covering body has a planar shape with four sides in a free state, is rollable, and stands on its own in a curved state.

8. 8. The covering of claim 7, wherein the covering has linear folds.

9. The cover has a pair of straight folds that intersect with each other, each fold being inclined with respect to each side, and the shortest distance between the intersection of the pair of folds and the center of the cover is defined as x, and the length of the diagonal of the cover is defined as L. 0≦x≦0.25×L; The covering of claim 7.

10. The bending rigidity of the cover is 3.0 N·m ２ Above, 4300N・m ２ 8. The covering of claim 7, wherein:

11. The cover according to claim 7, wherein the cover has a total light transmittance of 60% or more.

12. The covering according to claim 7, wherein the covering has a haze value of 30% or more.

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