How to remove decorative materials

Abstract

The problem that this invention aims to solve is to provide a method for removing decorative materials from a building substrate, which allows for easy removal of the decorative material from the substrate while suppressing damage to the substrate or the decorative material after it has been attached to the substrate. [Solution] A method for removing decorative material attached to a substrate of a building, wherein the substrate and the decorative material are connected by a gripping body, the end of the gripping body protrudes from the area where the decorative material is attached, and in order to detach the gripping body from the substrate, the detachment portion of the gripping body is pulled in a substantially horizontal direction relative to the substrate, thereby detaching the gripping body from the substrate.

Description

Technical Field

[0004]

[0001] The present invention relates to a method for removing decorative materials.

Background Art

[0002] Conventionally, as interior materials for buildings, decorative materials such as thermosetting resin decorative panels have been preferably used. Although thermosetting resin decorative panels are excellent in hardness and strength, they are brittle. Therefore, when they are installed on the base of a building using nails or screws, cracks and fractures may occur. Usually, they are attached using double-sided adhesive tapes or elastic adhesives.

[0003] In the past, the applicant of the present application invented an attachment structure for a decorative panel, characterized in that the decorative panel is installed in a see-through manner using a double-sided adhesive tape 3 and an elastic adhesive ②, a waterproof tape ① slightly larger than the width of the see-through is adhered to the base ⑨ of the joint part ⑥, and an elastic sealing agent ⑤ is injected into the joint part gap (Patent Document 1). This attachment structure for a decorative panel is a structure for attaching a decorative panel to a tile base in a bathroom or the like. By using the waterproof tape ① on the base of the outer periphery and the joint part ⑥ and using a water-resistant elastic adhesive ② at various places inside, the water-stopping property is improved, the shrinkage of the decorative panel is followed, and the occurrence of swelling and peeling can be suppressed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] <0OO0024>In recent years, for the purpose of reducing the burden on workers and shortening the construction period, a method that can easily attach a decorative material to a base and can also easily remove it from the base after installation has been desired. In particular, as awareness of effective resource utilization and environmental consideration has increased, a method that can easily remove a decorative material without damaging or destroying the base or the decorative material and that allows both the base and the decorative material to be reused has been demanded, and there has been room for improvement. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The problem that this invention aims to solve is to provide a method for removing decorative materials that allows for easy removal of already installed decorative materials from the substrate while minimizing damage to the substrate or decorative materials. [Means for solving the problem]

[0007] The present invention relates to a method for removing decorative material attached to a substrate of a building, wherein the substrate and the decorative material are connected by a gripping body, the end of the gripping body protrudes from the area where the decorative material is attached, and in order to detach the gripping body from the substrate, the detachment portion of the gripping body is pulled in a substantially horizontal direction relative to the substrate, thereby detaching the gripping body from the substrate. [Effects of the Invention]

[0008] The method for removing decorative materials according to the present invention has the effect of easily removing already installed decorative materials from the substrate while suppressing damage to the substrate or the decorative material itself. [Brief explanation of the drawing]

[0009] [Figure 1] Front view (a), schematic perspective view (b), and schematic cross-sectional view (c) of a lightweight steel frame substructure, which is an example of a substructure. [Figure 2] The images show a front view (a), a schematic perspective view (b), and a schematic cross-sectional view (c) along line XX, illustrating the installation of double-sided adhesive tape, an example of a gripping element, on a lightweight steel frame substructure. [Figure 3] Front view (a), schematic perspective view (b), and schematic cross-sectional view (c) of line XX showing the first decorative cover in a fixed position. [Figure 4] Front view (a), schematic perspective view (b), and schematic cross-sectional view (c) showing the decorative material installed. [Figure 5]Front view (a), schematic perspective view (b), and schematic cross-sectional view (c) along line XX, showing the second decorative cover in a connected state. [Figure 6] Schematic enlarged cross-sectional view of Figure 5(c) [Figure 7] A schematic cross-sectional view showing the state with the decorative cover removed. [Figure 8] A schematic cross-sectional view showing the state in which the peeled portion of the double-sided adhesive tape is pulled in a nearly horizontal direction relative to the lightweight steel frame substrate. [Figure 9] A schematic cross-sectional view showing the end of the double-sided adhesive tape being pulled by a rotating body in a direction different from the approximately horizontal direction of the lightweight steel frame substrate. [Modes for carrying out the invention]

[0010] The present invention will be described in detail below with reference to the drawings. First, the present invention is a method for removing decorative material attached to a substrate of a building, characterized in that the substrate and the decorative material are connected by a gripping body, and the end of the gripping body protrudes from the area where the decorative material is attached.

[0011] Figure 1 shows a front view (a), a schematic perspective view (b), and a schematic cross-sectional view (c) of line XX, which represent a lightweight steel frame substructure 10, an example of substructure 5.

[0012] An example of a building interior substrate 5 is a lightweight steel frame substrate 10. The lightweight steel frame substrate 10 consists of runners 11 that are in contact with and parallel to the floor surface 1 or ceiling surface 2, studs 12 that extend from the floor surface 1 to the ceiling surface 2 perpendicular to the floor surface 1 and ceiling surface 2, and spacers 13 to suppress deformation of the studs. Of these, the runners 11 consist of a runner 11A installed on the ceiling surface 2 and a runner 11B installed on the floor surface 1. Furthermore, in order to suppress lateral vibration of the studs 12, a brace 15 may be provided perpendicular to the studs 12 as appropriate.

[0013] Figure 2 shows a front view (a), a schematic perspective view (b), and a schematic cross-sectional view along line XX (c) illustrating a state in which a double-sided adhesive tape 21, which is an example of a gripping body 20, is installed on a lightweight steel frame base 10.

[0014] The base material 5 and the decorative material 40 are connected by a gripping body 20. An example of the gripping body 20 is an elastic double-sided adhesive tape 21 or an elastic adhesive 22. Because it has high tensile properties in the longitudinal direction, even if it is gripped by hand or with a special jig and pulled in the longitudinal direction, there is little possibility of it tearing into small pieces, and it can be easily peeled off from the base material 5 even after installation. Therefore, the decorative material 40 can be easily removed from the base material 5 without damaging or destroying the base material 5 or the decorative material 40, and both the base material 5 and the decorative material 40 can be reused.

[0015] The gripping body 20 is subjected to tensile properties measurement in accordance with JIS K 6251, and it is preferable that the breaking strength is 0.1 MPa or higher, more preferably 1 MPa or higher, and particularly preferable 2 MPa or higher. Furthermore, it is preferable that the elongation is 100% or higher, more preferably 500% or higher, and particularly preferable 1000% or higher. Being within this range reduces the possibility of fine breakage even when pulled in the length direction, and also tends to reduce adhesive residue as parts of the gripping body 20 are less likely to remain on the substrate 5 or decorative material 40. In this embodiment, the gripping body 20 used was one that, in a tensile test using a No. 8 dumbbell-shaped test piece in accordance with JIS K 6251 (tensile speed: 200 mm / min, thickness: 2 mm), had a breaking strength of 2.3 MPa and an elongation of 1050%.

[0016] The gripping body 20 can be installed in a straight line, for example, from a runner 11A provided on the ceiling surface 2, through a stud 12, to a runner 11B provided on the floor surface 1. By installing it to extend from runner 11A to runner 11B, the end portion 25 of the gripping body 20 protrudes from the mounting range of the decorative material 40, improving the workability when removing the decorative material 40, as will be described later.

[0017] Figure 3 shows a front view (a), a schematic perspective view (b), and a schematic cross-sectional view taken along line X-X (c) showing the state in which the first decorative cover is fixed.

[0018] From the viewpoints of the design surface and the safety surface, the end portion 25 of the protruding gripping body 20 may be covered by the decorative cover 30.

[0019] The decorative cover 30 may be composed of, for example, a first decorative cover 31 fixed to the runner 11 and a second decorative cover 32 connected to the first decorative cover 31. In that case, the first decorative cover 31A is fixed to the runner 11A, and the first decorative cover 31B is fixed to the runner 11B. Further, auxiliary materials can be appropriately used at these corner portions.

[0020] Examples of the method of fixing the first decorative cover 3 are providing a drilling hole in the runner 11 and fixing the first decorative cover 31 with screws 35 or nails 36.

[0021] Figure 4 shows a front view (a), a schematic perspective view (b), and a schematic cross-sectional view taken along line X-X (c) showing the state in which the decorative material 40 is attached.

[0022] As the decorative material 40, for example, a non-combustible melamine resin decorative board 41 can be used. The non-combustible melamine resin decorative board 41 can be manufactured by laminating a resin-impregnated decorative paper obtained by impregnating a fibrous base material with a resin liquid containing a thermosetting resin such as a melamine resin and drying it, and a prepreg obtained by impregnating a fibrous base material with a resin liquid containing a binder resin and an inorganic filler such as an endothermic metal hydroxide and drying it, and then performing thermocompression molding.

[0023] For example, in combination with a lightweight steel frame base 10 made of metal, it is particularly suitable to use the non-combustible melamine resin decorative board 41 because the wall surface can also be made into a non-combustible structure.

[0024] Figure 5 shows a front view (a), a schematic perspective view (b), and a schematic cross-sectional view (c) along line XX, showing the second decorative cover 32 in a connected state. Figure 6 shows a schematic enlarged cross-sectional view of Figure 5(c).

[0025] The first decorative cover 31 is fixed with screws 35 or nails 36, and the heads of these screws are exposed on the surface of the first decorative cover 31. However, by connecting the second decorative cover 32 to the first decorative cover 31, the exposed parts can be covered and the cover can be made to look nice. Specifically, the second decorative cover 32A is connected to the first decorative cover 31A, and the second decorative cover 32B is connected to the first decorative cover 31B.

[0026] One possible connection method is a snap-fit ​​type, in which the first decorative cover 31 serves as the receiving material and the second decorative cover 32 serves as the fitting material. A snap-fit ​​type is preferable because it offers good workability when installing and removing the components.

[0027] In the above-described mounting structure for decorative materials, the decorative materials can be easily removed.

[0028] The present invention provides a method for removing a decorative material, characterized in that, in order to detach the gripping body from the substrate, the detached portion of the gripping body is pulled in a direction substantially horizontal to the substrate, thereby detaching the gripping body from the substrate. An example of the substrate 5 is a lightweight steel frame substrate 10.

[0029] Figure 7 shows a schematic cross-sectional view of the state with the decorative cover 30 removed.

[0030] First, remove the decorative cover 30 that covers the end 25 of the double-sided adhesive tape 21, which is an example of a gripping body 20. If the first decorative cover 31 and the second decorative cover 32 are used together, remove the second decorative cover 32 first, then remove the screws 35 or nails 36 that are fixing the first decorative cover 31, and then remove the first decorative cover 31. Once the decorative cover 30 is removed, the end 25 of the double-sided adhesive tape 21 will be sticking out from the mounting area of ​​the decorative material 40.

[0031] Figure 8 shows a schematic cross-sectional view illustrating the state in which the peel portion 26 of the double-sided adhesive tape 21 is pulled in a nearly horizontal direction relative to the lightweight steel frame substrate 10.

[0032] The end 25 of the double-sided adhesive tape 21 can be grasped by hand or with a special jig, and the peeling portion 26 can be pulled in a substantially horizontal direction relative to the lightweight steel frame base 10, thereby allowing the double-sided adhesive tape 21 to be peeled off. This is because the double-sided adhesive tape 21 has high tensile properties in the longitudinal direction, so even when pulled in a substantially horizontal direction relative to the lightweight steel frame base 10, there is little possibility of it tearing into small pieces, and it can be easily peeled off from the lightweight steel frame base 10. As a result, the lightweight steel frame base 10 and the decorative material 40 can be separated, making it possible to easily remove the decorative material 40. Furthermore, the decorative material 40 can be easily removed from the lightweight steel frame base 10 without damaging or destroying the lightweight steel frame base 10 or the decorative material 40, resulting in the effect of allowing both the lightweight steel frame base 10 and the decorative material 40 to be reused.

[0033] On the other hand, if the peeled portion 26 is pulled in a direction different from the approximately horizontal direction relative to the lightweight steel frame substrate 10, the double-sided adhesive tape 21 tends to tear into small pieces, or some of it remains on the lightweight steel frame substrate 10 or the decorative material 40.

[0034] Next, in a state where the release portion 26 of the double-sided adhesive tape 21 is pulled in a substantially horizontal direction relative to the lightweight steel frame base 10, the protruding end portion 25 of the double-sided adhesive tape 21 may be pulled in a direction different from the substantially horizontal direction relative to the lightweight steel frame base 10, thereby causing the double-sided adhesive tape 21 to peel off.

[0035] As a result, even when the distance from the mounting area of ​​the decorative material 40 to the floor surface 1 is short and it is not possible to insert a man or a special jig, or to secure a distance for pulling, the double-sided adhesive tape 21 can be peeled off relatively easily, and the decorative material 40 can be removed, thus tending to improve work efficiency.

[0036] Alternatively, the end portion 25 of the protruding double-sided adhesive tape 21 may be pulled by the rotating body 50 in a direction different from the substantially horizontal direction of the lightweight steel frame base 10, thereby causing the double-sided adhesive tape 21 to be peeled off.

[0037] Figure 9 shows a schematic cross-sectional view illustrating the state in which the end portion 25 of the double-sided adhesive tape 21 is pulled by the rotating body 50 in a direction different from the approximately horizontal direction of the lightweight steel frame base 10.

[0038] As a result, the decorative material 40 can be easily removed with light force, either by hand or with a special jig, without the need for brute force, thus dramatically improving work efficiency.

[0039] Therefore, the method for removing decorative materials according to the present invention has the effect of allowing the installed decorative material to be easily removed from the base while suppressing damage to the base material or the decorative material itself.

[0040] <Other Embodiments> As described above, the present invention has been explained in detail, but the present invention is not limited to the embodiments described above, and also includes the following embodiments.

[0041] The substrate 5 is not particularly limited and can include lightweight steel frame substrates 10, as well as, for example, general concrete substrates, mortar substrates, gypsum substrates, etc., which can be used for walls, ceilings, and floors.

[0042] Examples of the gripping body 20 include double-sided adhesive tape 21 and elastic adhesive 22.

[0043] As the elastic adhesive 22, an adhesive that maintains rubber-like elasticity for a long period of time after curing can be suitably used. Specific examples include silicone resin adhesives, modified silicone resin adhesives, urethane resin adhesives, epoxy resin adhesives, acrylic resin adhesives, butyl rubber adhesives, and hot melt adhesives made from styrene rubber compositions. Modified silicone resin adhesives and hot melt adhesives are particularly preferred in terms of water resistance, adhesive strength, and durability.

[0044] Furthermore, the gripping body 20 can be made using both double-sided adhesive tape 21 and elastic adhesive 22. For example, several strips of double-sided adhesive tape 21 are applied to the substrate 5 perpendicular to the floor and ceiling surfaces, in a straight line from the floor to the ceiling surface, spaced apart and parallel to each other. After allowing both ends to protrude beyond the area where the decorative material will be attached, elastic adhesive 22 is applied to the gaps between the applied double-sided adhesive tape 21, with both ends of the elastic adhesive 22 also protruding beyond the area where the decorative material will be attached. The decorative material 40 is then attached to the substrate before the elastic adhesive 22 hardens.

[0045] The decorative cover 30 may be made of long plastic, metal, or inorganic material, and may also be short. If it is short, for example, it can be used spaced apart on the gripping body 20 of the runner 11.

[0046] Furthermore, in the decorative cover 30, the mechanism for connecting the first decorative cover 31 and the second decorative cover 32 includes, in addition to a fitting type, a method of connecting using adhesive, a method of connecting using double-sided adhesive tape, and a method of connecting using a magnetic material.

[0047] As the decorative material 40, in addition to the non-combustible melamine resin decorative board 41, organic decorative materials 42 and inorganic decorative materials 43, which are made by laminating a decorative layer 403 onto an organic base material 401 or an inorganic base material 402, can be appropriately selected and used.

[0048] Examples of organic substrates 401 include wood-based substrates such as MDF, particleboard, and plywood, foamed substrates made by foaming organic resin, and plastic substrates made by impregnating a fibrous substrate with organic resin. Examples of inorganic substrates 402 include gypsum board, calcium silicate board, and cement board.

[0049] The decorative layer 403 can be formed by using a decorative sheet made of organic resin, organic resin-impregnated decorative paper in which organic resin is impregnated into decorative paper for decorative materials, or by applying a paint made of organic resin to the outermost surface.

[0050] The rotating body 50 can be operated by holding it in one hand and pulling it with the fingers of the other hand, or by using a jig equipped with a base to support the rotating body 50. The material of the rotating body may be metal, organic resin, or inorganic material.

[0051] Although the present invention has been described in detail above, the present invention is not limited to the embodiments described above, and can be implemented in various forms without departing from the spirit of the invention. [Explanation of Symbols]

[0052] 1 Floor surface 2 Ceiling surface 10 Lightweight steel frame substructure 11 Runners 12 studs 13 Spacers 15. Stabilizer 20 Grip 21 Double-sided adhesive tape 25 End 26 Peeled section 30 Makeup Cover 31 First cosmetic cover 32 Second cosmetic cover 35 screws 40 Decorative materials 50 Rotating Bodies

Claims

1. In a method for removing decorative materials attached to the substrate of a building, The base material and the decorative material are connected by a gripping body, and the end of the gripping body protrudes from the area where the decorative material is attached. A method for removing a decorative material, characterized in that, in order to peel the gripping body from the substrate, the peeling portion of the gripping body is pulled in a direction substantially horizontal to the substrate, thereby causing the gripping body to peel off the substrate.

2. The method for removing a decorative material according to claim 1, characterized in that the end of the protruding gripping body is pulled in a direction different from the substantially horizontal direction of the substrate, thereby causing the gripping body to be peeled off from the substrate.

3. The method for removing a decorative material according to claim 2, characterized in that the protruding end of the gripping body is pulled by a rotating body in a direction different from the substantially horizontal direction of the substrate.

4. The method for removing a decorative material according to any one of claims 1 to 3, characterized in that the gripping body is an elastic adhesive and / or double-sided adhesive tape.

5. The method for removing decorative material according to any one of claims 1 to 3, characterized in that the gripping body has a breaking strength of 0.1 MPa or more and an elongation of 100% or more in tensile property measurements in accordance with JIS K 6251.

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