Method of using and processing the sheet, and the sheet

Abstract

This invention provides a sheet that does not require sorting during disposal, as well as a method for using and processing the same. [Solution] The method of using the sheet includes the steps of preparing a first sheet having protrusions and a second sheet having holes, and connecting the first sheet and the second sheet by inserting the protrusions into the holes, wherein the first sheet and the second sheet are non-combustible or flame-retardant.

Description

Technical Field

[0001] The present disclosure relates to a method of using and processing a sheet and the sheet.

Background Art

[0002] Examples of techniques related to a non-combustible sheet that covers the periphery of a work area during hot work or the like include the following.

[0003] Patent Document 1 discloses a non-combustible sheet in which an anchor layer containing a urethane resin containing vinyl chloride acetate or an acrylic resin containing vinyl chloride acetate is formed on the surface of a base fabric layer containing a thermoplastic resin and an inorganic material.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Generally, when covering a large area with a sheet such as a non-combustible sheet, a plurality of sheets are joined together with an adhesive tape or the like for use. However, each time the number of uses increases, the bonding force of the adhesive tape or the like weakens, and it may become difficult to use appropriately.

[0006] Also, from the perspective of waste reduction and the need to separate the sheet and the tape at the time of disposal, it is desirable to refrain from using an adhesive tape or the like.

[0007] Therefore, an object of the present disclosure is to provide a sheet that does not need to be sorted at the time of disposal, and a method of using and processing the same.

Means for Solving the Problems

[0008] A method of using the sheet of this disclosure includes the steps of preparing a first sheet having protrusions and a second sheet having holes, and connecting the first sheet and the second sheet by inserting the protrusions into the holes, wherein the first sheet and the second sheet are non-combustible or flame-retardant. [Effects of the Invention]

[0009] According to this disclosure, it is possible to provide a sheet that does not require sorting during disposal, as well as a method for using and processing the same. [Brief explanation of the drawing]

[0010] [Figure 1A] This is a diagram showing the first sheet of Example 1. [Figure 1B] This is a diagram showing the configuration of the second sheet of Example 1. [Figure 2A] This is a diagram showing the first sheet of modified example 1. [Figure 2B] This is a diagram showing the first sheet of modified example 2. [Figure 3] This is a diagram showing the first sheet of Example 2. [Figure 4] This is a diagram showing the configuration of the first sheet of Example 3. [Figure 5] This is a diagram showing the first sheet of Example 4. [Figure 6A] This is a diagram showing the configuration of the first sheet of Example 5. [Figure 6B] This is a diagram showing the configuration of the first sheet of Example 6. [Figure 7] This is a diagram showing the configuration of the first sheet of Example 7. [Figure 8A] This is a diagram showing the configuration of the second sheet of modified example 3. [Figure 8B] This is a diagram showing the configuration of the second sheet of modified example 4. [Figure 9] This is a diagram showing the first sheet of Example 8. [Figure 10A] This is a view from the front of a sheet connected to a first sheet with two protrusions and a second sheet with holes corresponding to the two protrusions, as shown in Example 1. [Figure 10B] It is a view of the two connected sheets of FIG. 10A seen from the back side. [Figure 11] It is a configuration diagram showing the first sheet of Example 9. [Figure 12] It is a perspective view showing an example of the usage state of the sheet.

Mode for Carrying Out the Invention

[0011] Hereinafter, examples according to the present disclosure will be described with reference to the drawings. Note that the following examples do not limit the content of the present disclosure, and the configurations of each example can be combined as necessary.

Example

[0012] FIG. 1A is a configuration diagram showing the first sheet of Example 1.

[0013] In this figure, two cuts 10 are made at one end (the right side in the figure) of the sheet 1 (the first sheet) to form a rectangular convex portion 11. Therefore, the convex portion 11 is a part of the sheet 1 and is composed of the same material.

[0014] FIG. 1B is a configuration diagram showing the second sheet of Example 1.

[0015] In this figure, a single cut is made near one end (the left side in the figure) of the sheet 2 (the second sheet) to form a slit-shaped hole 12 (slit portion). The hole 12 is parallel to the direction perpendicular to the side of the sheet 2.

[0016] When connecting the first sheet and the second sheet, the convex portion 11 in FIG. 1A is inserted into the hole 12 in FIG. 1B. As a result, a frictional force acts between the convex portion 11 and the peripheral portion of the hole 12, and the convex portion 11 is fixed without coming out of the hole 12.

[0017] The length of the hole 12 may be less than the width of the protrusion 11. In this case, the protrusion 11 is inserted into the hole 12 by bending it or the like. In this case, the restoring force due to the spring elasticity of the bent protrusion 11 as it tries to return to its flat state causes a pressing force from the protrusion 11 to act on the periphery of the hole 12, increasing the frictional force. As a result, the connection between the first sheet and the second sheet becomes stronger.

[0018] Furthermore, both the first and second sheets are non-combustible or flame-retardant. The materials for the first and second sheets should preferably be polyethylene resin, polypropylene resin, etc., to which flame retardants such as halogen-based, non-halogen-based, or phosphate ester-based agents have been added.

[0019] Figure 10A is a view from the front of a first sheet with two protrusions and a second sheet with holes corresponding to the two protrusions, connected together.

[0020] As shown in this figure, a portion of the holes 12 provided in sheet 2 is visible from the front side of the sheet.

[0021] Figure 10B is a view of the two connected sheets shown in Figure 10A, seen from the reverse side.

[0022] As shown in Figure 10B, from the back side of the sheet, the protrusion 11 provided on sheet 1 is passed through the hole 12 provided on sheet 2, connecting sheet 1 and sheet 2. As described above, a frictional force acts between the protrusion 11 and the periphery of the hole 12, making it difficult for the protrusion 11 to come out of the hole 12.

[0023] Furthermore, the structure may include three or more protrusions 11 and three or more holes 12 corresponding to these protrusions 11. These protrusions 11 and the corresponding holes 12 constitute a set of protrusions 11 and holes 12.

[0024] As described above, the set of protrusions 11 and holes 12 may be one set or two or more sets. Even with one set, sufficient frictional force can be obtained, and using one set has the advantage of shortening the connection time. On the other hand, with two or more sets, the contact area is larger and a greater frictional force can be obtained, so the separation of the two connected sheets can be reliably prevented.

[0025] (Variation 1) Figure 2A is a diagram showing the configuration of the first sheet of Modified Example 1.

[0026] The sheet 1 shown in this figure has a longer protrusion 11 compared to the sheet 1 in Figure 1A. This makes it even more difficult for the protrusion 11 to come out of the hole.

[0027] (Modification 2) Figure 2B is a diagram showing the configuration of the first sheet of Modified Example 2.

[0028] The sheet 1 shown in this figure has a larger width of the protrusion 11 compared to the sheet 1 in Figure 1A. In this case as well, the protrusion 11 is less likely to come out of the hole compared to the sheet 1 in Figure 1A. [Examples]

[0029] Figure 3 is a diagram showing the configuration of the first sheet in Example 2.

[0030] In this figure, the two notches 10 of sheet 1 are inclined with respect to the edge of sheet 1 and are parallel to it. The angle of inclination is between 0 and 180 degrees in absolute value. That is, the protrusion 11 is parallelogram-shaped. With this configuration, the direction of the force acting between the first sheet and the second sheet is different from the direction of the protrusion 11 in the longitudinal direction, so the protrusion 11 is less likely to come out of the hole compared to Example 1. [Examples]

[0031] Figure 4 is a diagram showing the configuration of the first sheet of Example 3.

[0032] In this figure, the two notches 10 in sheet 1 are inclined with respect to the edge of sheet 1, and each is at a different angle. The angle of inclination is between 0 and 180 degrees in absolute value. In this case, the shape of the protrusion 11 can be said to be trapezoidal. With this configuration, the direction of the hypotenuse of the trapezoidal protrusion 11 and the direction of the force acting between the first sheet and the second sheet are different, so the protrusion 11 is less likely to come out of the hole compared to Embodiment 1. [Examples]

[0033] Figure 5 is a diagram showing the configuration of the first sheet of Example 4.

[0034] In this figure, of the two notches 10 in sheet 1, one is perpendicular to the edge of sheet 1, and the other is in the shape of a broken line. A portion of the broken line is parallel to the edge of sheet 1. In this case, the parallel portion of the notch 10 catches on the periphery of the hole in the second sheet, making it more difficult for the protrusion 11 to come out of the hole compared to Embodiment 1.

[0035] In this embodiment, a portion of the broken line shape is parallel to the edge of sheet 1, but the same effect can be achieved even if a portion of the broken line shape is inclined relative to the edge of sheet 1. [Examples]

[0036] Figure 6A is a diagram showing the configuration of the first sheet of Example 5.

[0037] In this figure, both of the two notches 10 in sheet 1 are broken lines. The two broken lines are symmetrical with respect to an axis of symmetry perpendicular to the edge of sheet 1. In addition, a portion of each broken line is parallel to the edge of sheet 1. In this case, the parallel portion of the notch 10 catches on the periphery of the hole in the second sheet, making it more difficult for the protrusion 11 to slip out of the hole compared to Example 4.

[0038] The convex portion 11 shown in this figure may be inclined with respect to the edge of sheet 1. In this case, the angle of inclination is between 0 degrees and 180 degrees in absolute value. [Examples]

[0039] Figure 6B is a diagram showing the configuration of the first sheet of Example 6.

[0040] In this figure, both of the two notches 10 in sheet 1 are in a broken line shape. The multiple straight sections that make up the two broken line shapes are parallel to each other. In addition, these straight sections are inclined with respect to the edges of sheet 1. In this case, the straight sections of the notches 10 catch on the periphery of the hole in the second sheet, making it more difficult for the protrusions 11 to come out of the hole compared to Embodiment 1. Also, since the width of the protrusions 11 is almost uniform, there is less snagging when inserting the protrusions 11 into the hole, making it easier to connect the first sheet and the second sheet. [Examples]

[0041] Figure 7 is a diagram showing the configuration of the first sheet of Example 7.

[0042] In this figure, both of the two notches 10 in sheet 1 are curved. In other words, the curved shape is wavy. The two curved shapes are locally parallel, that is, they are parallel at each position in the direction perpendicular to the edge of sheet 1. Because the protrusion 11 having such a curved shape is inclined with respect to the edge of sheet 1, it catches on the periphery of the hole in the second sheet. As a result, the protrusion 11 is less likely to come out of the hole compared to Embodiment 1. Also, because the width of the protrusion 11 is almost uniform, there is less snagging when inserting the protrusion 11 into the hole, making it easy to connect the first sheet and the second sheet.

[0043] (Variation 3) Figure 8A is a diagram showing the configuration of the second sheet of Modification Example 3.

[0044] In sheet 2 shown in this figure, two cuts are arranged in series to form two slit-shaped holes 12 (slit portions).

[0045] If two protrusions are provided in the first sheet at positions corresponding to the two holes 12, the connection between the two protrusions and the two holes 12 increases the contact area between the protrusions and the peripheral edges of the holes 12, making it possible to more reliably prevent the protrusions from coming out of the holes 12.

[0046] (Modification 4) Figure 8B is a diagram showing the configuration of the second sheet of Modification 4.

[0047] In the sheet 2 shown in this figure, the notch of the hole 12 is oriented approximately parallel to the edge of the sheet 2. If the length of the notch is made smaller than the width of the protrusion into which it is inserted, the frictional force at both ends of the protrusion in the width direction becomes larger than in Example 1, etc., making it more difficult for the protrusion to come out of the hole 12. [Examples]

[0048] Figure 9 is a diagram showing the configuration of the first sheet of Example 8.

[0049] In addition to the two cuts 10 in the first sheet shown in Figure 1A, another cut 10 is made that is almost perpendicular to the two cuts 10, forming a rectangular protrusion 11 with a cut 10. With this configuration, the contact area and frictional force between the protrusion 11 of the first sheet and the peripheral edge of the hole in the second sheet are larger than in Example 1, etc., making it even more difficult for the protrusion 11 to come out of the hole. [Examples]

[0050] Figure 11 is a diagram showing the configuration of the first sheet of Example 9.

[0051] In this figure, the protrusion 11 is given an arrow shape. As a result, the wider, arrow-shaped portion of the protrusion 11 catches on the periphery of the hole in the second sheet, making it more difficult for the protrusion 11 to slip out of the hole compared to Example 1.

[0052] In this figure, the protrusion 11 is an arrow shape pointing perpendicular to the right edge of the sheet 1 in the figure (pointing to the right in the figure). However, the direction of the arrow shape is not limited to this, and it may be inclined relative to the edge of the sheet 1. Also, the direction of the arrow shape may be opposite to the direction shown in this figure. The angle of inclination is in the range of 0 degrees to 180 degrees in absolute value. [Examples]

[0053] Figure 12 is a perspective view showing an example of the sheet's usage state.

[0054] This figure shows a configuration in which sheet 1 and sheet 2 are connected and suspended from a horizontal rod 122 supported by two column sections 121. It is preferable that the column sections 121 and rod 122 be made of a non-combustible material, such as metal.

[0055] By arranging sheets 1 and 2 in this manner, for example, during work involving fire, it is possible to prevent the heat from the fire from reaching devices, equipment, etc., placed on the opposite side of sheets 1 and 2.

[0056] The column portion 121 and the rod portion 122 can be collectively referred to as "rod-shaped members."

[0057] Alternatively, a plate-shaped member may be used to support the sheet instead of a rod-shaped member.

[0058] Next, we will explain how to use the sheets related to this disclosure. In the following explanation, we will describe the case where two sheets are connected and used together, but the method of using the sheets related to this disclosure is not limited to this, and three or more sheets may be connected and used in the same manner.

[0059] In the method of using the sheet according to this disclosure, first, a first sheet having a protrusion and a second sheet having a hole are prepared (step S100). Then, the protrusion is inserted into the hole and the first sheet and the second sheet are connected (step S110). Next, the connected first sheet and the second sheet are arranged to cover the perimeter of the object to be protected (step S120).

[0060] Furthermore, when connecting the first sheet and the second sheet, the method of using the sheet according to this disclosure may include a step of making cuts in appropriate positions on the first sheet and the second sheet to form protrusions and holes, in order to ensure that the dimensions of the connected sheet set are as desired, before connecting them on site.

[0061] Furthermore, the sheet relating to this disclosure may be used not only for fire-related work, but also to cover equipment and devices to prevent dust from accumulating on them. It can also be used to protect walls, floors, etc., from the heat of fire and dust.

[0062] Other uses of the sheet according to other embodiments of this disclosure include the following:

[0063] The process includes the steps of preparing a first sheet having a first surface and a second sheet having a second surface of a hook-and-loop fastener that are fixed by joining a first surface and a second surface, and joining the first surface and the second surface to connect the first sheet and the second sheet. Here, a hook-and-loop fastener refers to one that is attached by pressing together a hook-shaped napped side and a loop-shaped densely napped side.

[0064] The process includes the steps of preparing a first sheet having a first surface and a second sheet having a second surface of a zipper that is fixed by joining the first surface and the second surface, and joining the first surface and the second surface to connect the first sheet and the second sheet. Here, a zipper is an attachment to a sheet that can be tightly fixed by bringing the first surface and the second surface into contact and pressing them together. The zipper is made of the same material as the sheet and does not require separation for recycling.

[0065] The process includes the steps of preparing a first sheet having a first hole and a second sheet having a second hole, as well as a string-like member made of the same material as either the first sheet or the second sheet, and inserting the string-like member into the first hole and the second hole to connect the first sheet and the second sheet. Here, the string-like member is passed through the two holes and then a knot is formed to make a ring, thereby fixing the two sheets together.

[0066] The following are examples of sheet processing methods according to the embodiments of this disclosure.

[0067] A method for processing a first sheet and a second sheet to be used in a method of using a sheet, comprising the steps of preparing a first sheet having a protrusion and a second sheet having a hole, and connecting the first sheet and the second sheet by inserting the protrusion into the hole, wherein the method includes the step of forming the protrusion and the hole at predetermined positions on the first sheet and the second sheet. [Explanation of Symbols]

[0068] 1, 2: Sheet, 10: Cutout, 11: Protrusion, 12: Hole, 121: Column, 122: Rod.

Claims

1. A step of preparing a first sheet having a protrusion and a second sheet having a hole, The process includes inserting the protrusion into the hole to connect the first sheet and the second sheet, A method of using the sheets, wherein the first sheet and the second sheet are non-combustible or flame-retardant.

2. A method for using a sheet according to claim 1, further comprising the step of forming the protrusions and holes at predetermined positions on the first sheet and the second sheet.

3. The aforementioned protrusion is formed at one end of the first sheet, The method of using the sheet according to claim 1, wherein the hole is formed near one end of the second sheet.

4. The method for using a sheet according to claim 1, further comprising the step of installing the connected first sheet and the second sheet so as to be supported by a rod-shaped member or a plate-shaped member.

5. A step of preparing a first sheet having a first hole and a second sheet having a second hole, and a string-like member formed from the same material as either the first sheet or the second sheet, The process includes inserting the string-like member into the first hole and the second hole to connect the first sheet and the second sheet, A method of using the sheets, wherein the first sheet and the second sheet are non-combustible or flame-retardant.

6. A step of preparing a first sheet having the first surface and a second sheet having the second surface of a hook-and-loop fastener that is fixed by joining the first surface and the second surface together, The process includes joining the first surface and the second surface to connect the first sheet and the second sheet, A method of using the sheets, wherein the first sheet and the second sheet are non-combustible or flame-retardant.

7. A step of preparing a first sheet having the first surface and a second sheet having the second surface of a zipper that is fixed by joining the first surface and the second surface, The process includes joining the first surface and the second surface to connect the first sheet and the second sheet, A method of using the sheets, wherein the first sheet and the second sheet are non-combustible or flame-retardant.

8. A step of preparing a first sheet having a protrusion and a second sheet having a hole, A method for processing a first sheet and a second sheet for use in a method of using a sheet, comprising the step of inserting the protrusion into the hole to connect the first sheet and the second sheet, The first sheet and the second sheet are non-combustible or flame-retardant. A method for processing sheets, comprising the step of forming the protrusions and holes at predetermined positions on the first sheet and the second sheet.

9. The sheet processing method according to claim 8, wherein the step of forming the protrusions and holes is performed by making cuts in the first sheet and the second sheet.

10. The sheet processing method according to claim 9, wherein the notch in the first sheet has an inclination with respect to the edge of the first sheet, and the angle of the inclination is 0 degrees or more and 180 degrees or less in absolute value.

11. The sheet processing method according to claim 8, wherein the convex portion of the first sheet is parallelogram-shaped, trapezoidal, or arrow-shaped.

12. The sheet processing method according to claim 9, wherein the cut in the first sheet includes a folded-line shaped portion.

13. The sheet processing method according to claim 9, wherein the cut in the first sheet includes a curved portion.

14. The sheet processing method according to claim 8, wherein a plurality of protrusions are formed on the first sheet, and a plurality of holes are formed on the second sheet corresponding to these protrusions.

15. A non-combustible or flame-retardant sheet having at least one of protrusions and holes, A sheet configured to connect a hole or protrusion of the sheet to another protrusion or hole provided on another sheet.

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