Ceiling air conditioner installation method without damage of existion wallpaper

Abstract

The objective of the present invention is to provide a method for installing a ceiling system air conditioner without damaging existing wallpaper. The configuration of the present invention is characterized by comprising the steps of: cutting a portion of existing wallpaper (120) to form a cut wallpaper (120CP) from the existing wallpaper (120) for piping work of a system air conditioner installed on the ceiling; installing the piping of the system air conditioner in the portion cut of the existing wallpaper (120); and reattaching the cut wallpaper (120CP) back to its original position.

Description

Technology Field

[0001] The present invention relates to a method for installing a ceiling system air conditioner without damaging existing wallpaper, and more specifically, to a method for installing a ceiling system air conditioner in which a portion of the existing wallpaper is cut and the wallpaper is restored to its original state without removing the entire existing wallpaper. Background Technology

[0003] Generally, when wallpapering cement or other wall surfaces in buildings, a method is often used where a base layer is applied to the wall to facilitate adhesion before the wallpaper is applied.

[0004] Meanwhile, wallpaper is attached to the ceiling board installed below the ceiling slab or to the underside of the ceiling slab to finish it.

[0005] At this time, since pipes must be installed in the ceiling of the building to install a system air conditioner, the existing wallpaper is removed and pipe work is carried out to install pipes for the system air conditioner in the ceiling.

[0006] However, in the past, there was a problem in that all the existing wallpaper had to be removed for the piping work of the system air conditioner, and new wallpaper had to be attached to finish the job after the piping work was completed. There were also economic disadvantages, such as the fact that it takes a lot of time and money to reattach the wallpaper because it is necessary to remove all the existing wallpaper and apply new wallpaper.

[0007] Meanwhile, the aforementioned background technology is technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot necessarily be considered publicly known technology disclosed to the general public prior to the filing of the present invention. Prior art literature

[0009] Patent Registration No. 10-1983961 Utility Model Registration No. 20-0340513 The problem to be solved

[0010] The main objective of the present invention is to provide a method for installing a ceiling system air conditioner that improves work efficiency by cutting a portion of the existing wallpaper without removing the entire existing wallpaper, and then restoring the cut wallpaper to its original state after installing the piping for the system air conditioner.

[0011] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0013] According to the present invention for solving the above-mentioned problem, a method for installing a ceiling system air conditioner without damaging the existing wallpaper is provided, characterized by comprising the steps of: cutting a portion of the existing wallpaper (120) to form a cut wallpaper (120CP) from the existing wallpaper (120) for piping work of a system air conditioner installed on the ceiling; installing the piping of the system air conditioner in the portion cut of the existing wallpaper (120); and reattaching the cut wallpaper (120CP) in its original position.

[0014] The method further includes a special restoration treatment step for specially treating the boundary between the existing wallpaper (120) and the restored cut wallpaper (120CP) so that there is no difference between the existing wallpaper (120) and the restored wallpaper (120CP). The special restoration treatment step is characterized by applying a finishing liquid to the cut portion between the cut wallpaper (120CP) and the existing wallpaper (120) using a nozzle, and after the finishing liquid has hardened, grinding and removing the hardened finishing layer (132) protruding from the outer surface of the cut wallpaper (120CP) and the existing wallpaper (120) using a grinder (134).

[0015] The method further includes a special paste restoration step to prevent peeling during the restoration of the wallpaper (120) to the ceiling board (110) for the installation of the pipes of the system air conditioner, wherein the special paste restoration step comprises: a step of forming a scratch portion (142) on the outer surface of the ceiling board (110) for the restoration of the wallpaper (120CP) for the installation of the pipes of the system air conditioner; a step of applying a paste (152) to the temporarily cut wallpaper (120); and a step of attaching the cut wallpaper (120CP) with the paste (152) applied to the outer surface of the ceiling board (110) so that a portion of the paste (152) is injected and hardened into the scratch portion (142).

[0016] The method is characterized by performing a step of restoring the insulation layer wallpaper by applying an insulation paste (152HP), which is a mixture of insulation paint and paste (152), to the inner surface of the cut wallpaper (120CP) that has been partially cut, and then reattaching the cut wallpaper (120CP) to the outer surface of the ceiling board (110) using the insulation paste (152HP).

[0017] The method is further characterized by including a winding wallpaper forming step in which the cut wallpaper (120CP) is rolled to one side to form a temporary winding wallpaper (120WP) so that the cut wallpaper (120CP) is not contaminated during the work for installing the piping of the above-mentioned system air conditioner.

[0018] The temporary attachment bracket (125) used in the above-mentioned winding wallpaper forming step is temporarily attached to the lower surface of the existing wallpaper (120) in the outer area of ​​the above-mentioned cut wallpaper (120CP), and is configured to support the winding wallpaper (120WP) using the temporary attachment bracket (125). Effects of the invention

[0020] The present invention is a method for installing a ceiling system air conditioner without damaging the existing wallpaper, implemented by cutting a portion of the existing wallpaper for the piping work of the system air conditioner, rolling the cut wallpaper neatly to one side so that it is not contaminated during the piping work, and then restoring the cut wallpaper neatly so that it is indistinguishable from the existing wallpaper after the piping work is completed. Since there is no need to remove all the existing wallpaper attached to the ceiling board and re-wallpaper for the piping work of the system air conditioner, and the cut wallpaper formed by cutting a portion of the existing wallpaper for the piping work can be neatly restored after the piping work is completed, it has the effect of preventing the need to remove all the existing wallpaper and re-wallpaper.

[0021] The effects of the present invention are not limited to those mentioned above, and various effects may be included within the scope obvious to a person skilled in the art from the contents described below. Brief explanation of the drawing

[0023] FIG. 1 is a photograph schematically showing the process of implementing a method for installing a ceiling system air conditioner without damaging existing wallpaper according to the present invention from the lower side of the ceiling. FIG. 2 is a chart showing the process of implementing a method for installing a ceiling system air conditioner without damaging existing wallpaper according to the present invention, FIG. 3 is a drawing showing from below the state in which an incision line is formed on an existing wallpaper during the implementation of the present invention to form an incision wallpaper. FIG. 4 is a drawing showing the cut wallpaper formed in FIG. 3 lowered below the ceiling board from the bottom side. FIG. 5 is a drawing showing the state of a cut wallpaper rolled up using a temporary attachment bracket during the implementation of the present invention, from the lower side of the ceiling. FIG. 6 is a drawing showing the state of a cut wallpaper rolled up using a temporary attachment bracket during the implementation of the present invention, viewed from the upper side of the ceiling. FIG. 7 is a drawing showing an enlarged view of the state in which paste is applied to the cut wallpaper shown in FIG. 4. FIG. 8 is a drawing showing an embodiment in which a scratch portion is formed on the lower surface of a ceiling plate during the implementation of the present invention, viewed from the bottom of the ceiling. FIG. 9 is a side cross-sectional view showing the solid restoration state of the cut wallpaper shown in FIG. 8, in which a portion of the paste is impregnated and hardened in a plurality of scratch grooves formed by the scratch portion while the cut wallpaper is attached to the lower surface of the ceiling board with paste. FIG. 10 is a drawing showing, from the bottom of the ceiling, the state in which a portion of the finishing material applied to the cut line portion between the cut wallpaper and the existing wallpaper hardens and remains as a hardened finishing layer during the restoration process of attaching the cut wallpaper shown in FIG. 8 to the ceiling board. FIGS. 11 and FIGS. 12 are side views schematically showing the process of removing the hardened finish layer illustrated in FIG. 10 by grinding it with a grinder. FIG. 13 is a drawing showing the state of the wallpaper restored without a cut line between the existing wallpaper and the cut wallpaper after the grinding work of the hardened finish layer shown in FIG. 11 and FIG. 12, viewed from the lower side of the ceiling. FIG. 14 is a drawing showing an example of applying thermal insulation paste to the cut wallpaper shown in FIG. 4 from the lower side of the ceiling. FIG. 15 is a drawing showing the state in which a cutting guide is temporarily attached to the lower surface of a ceiling board during the execution of a method for installing a ceiling system air conditioner without damaging existing wallpaper according to another embodiment of the present invention, viewed from the lower side of the ceiling board. FIG. 16 is a bottom view of FIG. 15, FIGS. 17 and 18 are side cross-sectional views schematically showing the process of forming cut wallpaper by forming a cut line in existing wallpaper with a working knife using the cutting guide shown in FIGS. 15 and 16, FIG. 19 is a schematic side view showing the structure of a work table and a suction device used in a method for installing a ceiling system air conditioner without damaging existing wallpaper according to another embodiment of the present invention. FIG. 20 is a side cross-sectional view showing a partially enlarged view of the state in which the suction pad of the suction device shown in FIG. 19 has suctioned and fixed the cut wallpaper and applied paste to the cut wallpaper. Specific details for implementing the invention

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The objectives, features, and advantages of the present invention will be more easily understood by referring to the attached drawings and the following detailed description. Furthermore, in describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the present invention, such detailed description is omitted.

[0025] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the present invention. These terms are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. For example, where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected to or connected to the other component, but that another component may also be "connected," "combined," or "connected" between each component.

[0027] FIG. 1 is a photograph schematically showing the process of implementing a method for installing a ceiling system air conditioner without damaging existing wallpaper according to the present invention from the lower side of the ceiling; FIG. 2 is a chart showing the process of implementing a method for installing a ceiling system air conditioner without damaging existing wallpaper according to the present invention; FIG. 3 is a drawing showing the state of forming a cut wallpaper by forming a cut line on the existing wallpaper during the implementation of the present invention from the lower side; FIG. 4 is a drawing showing the state of lowering the cut wallpaper formed in FIG. 3 below the ceiling board from the lower side; FIG. 5 is a drawing showing the state of rolling up the cut wallpaper using a temporary attachment bracket during the implementation of the present invention from the lower side of the ceiling; FIG. 6 is a drawing showing the state of rolling up the cut wallpaper using a temporary attachment bracket during the implementation of the present invention from the upper side of the ceiling; FIG. 7 is an enlarged drawing showing the state of applying paste to the cut wallpaper illustrated in FIG. 4; FIG. 8 is a drawing showing an embodiment in which a scratch portion is formed on the lower surface of the ceiling board during the implementation of the present invention from the lower side of the ceiling; FIG. 9 is the illustration in FIG. 8 A side cross-sectional view showing a solid restored state of the cut wallpaper, in which a portion of the paste is impregnated and hardened in multiple scratch grooves formed by the scratch area while the cut wallpaper is attached to the underside of the ceiling board with paste; FIG. 10 is a drawing showing, from the bottom of the ceiling, the state in which a portion of the finishing material applied to the cut line portion between the cut wallpaper and the existing wallpaper hardens and remains as a hardened finishing layer during the restoration process of attaching the cut wallpaper shown in FIG. 8 to the ceiling board; FIG. 11 and FIG. 12 are schematic side views showing the process of removing the hardened finishing layer shown in FIG. 10 by grinding it with a grinder; FIG. 13 is a drawing showing, from the bottom of the ceiling, the state in which the wallpaper is restored without a cut line between the existing wallpaper and the cut wallpaper after the grinding operation of the hardened finishing layer shown in FIG. 11 and FIG. 12.FIG. 14 is a drawing showing an example of applying thermal insulation paste to the cut wallpaper shown in FIG. 4 from the lower side of the ceiling.

[0028] Referring to the drawings, the method of installing a ceiling system air conditioner without damaging the existing wallpaper according to the present invention includes the steps of forming a cut wallpaper (120CP) in the existing wallpaper (120), installing the piping of the system air conditioner, and restoring the wallpaper.

[0029] At this time, the term "restoration" as described in the present invention means reattaching the cut wallpaper (120CP), which has been cut for the installation of the system air conditioner piping, to the ceiling plate (110) at its original position.

[0030] The present invention performs the step of cutting a portion of the existing wallpaper (120) to form a cut wallpaper (120CP) from the existing wallpaper (120) for the piping work of a system air conditioner installed on the ceiling. In the present invention, the step of cutting a portion of the existing wallpaper (120) for the piping work of the system air conditioner is the step of forming the cut wallpaper (120CP). In the cut wallpaper (120CP) step, the cut wallpaper (120CP) can be formed from the existing wallpaper (120) by forming a cut line (CL) on the existing wallpaper (120) using a general work knife. In the attached drawings of the present invention, the state in which the cut line (CL) is cut in a U-shape is illustrated.

[0031] Next, the present invention performs the step of installing the piping of a system air conditioner in a partially cut area of ​​the existing wallpaper (120). This piping installation step allows a piping worker to perform the piping work for the system air conditioner.

[0032] Next, the present invention performs a wallpaper restoration step in which the partially cut wallpaper (120CP) is reattached to its original position.

[0033] At this time, in the present invention, it is important to have a process of neatly restoring the cut wallpaper (120CP) after the piping work is completed so that it does not look like the existing wallpaper (120).

[0034] To this end, the present invention may further include a special restoration treatment step for specially treating the boundary between the existing wallpaper (120) and the restored wallpaper (120) so that there is no difference between the existing wallpaper (120) and the restored wallpaper (120).

[0035] The above special restoration treatment step involves injecting and applying a finishing liquid through a nozzle into the cut line (CL) portion that has been cut to form the cut wallpaper (120CP), and after the finishing liquid has hardened, grinding and removing the hardened finishing layer (132) protruding from the outer surface of the cut wallpaper (120CP) and the existing wallpaper (120) using a grinder (134).

[0036] Meanwhile, the grinder (134) can be a portable grinder (134), and the hardened finishing layer (132) protruding from the outer surface of the cut wallpaper (120CP) and the existing wallpaper (120) can be ground and removed by the high-speed rotating grinding roll (134GR) of the portable grinder (134), so that the restored cut wallpaper (120CP) and the existing wallpaper (120) can be finished neatly without any visible marks.

[0037] In this way, as shown in Fig. 11, the existing cut wallpaper (120CP) appears to be integrated without a boundary between the existing wallpaper (120) attached to the ceiling board (110) (mainly plasterboard).

[0038] Meanwhile, the present invention may further include a special paste restoration step to prevent peeling during the restoration of the wallpaper (120) to reattach the cut wallpaper (120CP), which was temporarily cut for the installation of the system air conditioner piping, to the ceiling plate (110).

[0039] The above special paste restoration step may include a step of forming a scratch portion (142) on the outer surface of a ceiling board (110) to restore a cut wallpaper (120CP) that has been temporarily cut for the installation of pipes for a system air conditioner, a step of applying a paste (152) to the temporarily cut wallpaper (120), and a step of attaching the cut wallpaper (120CP) with the paste (152) applied to the outer surface of the ceiling board (110) so that a portion of the paste (152) is injected and hardened into the scratch portion (142).

[0040] At this time, the scratch portion (142) can be formed by scratching the outer surface of the ceiling plate (110) using a conventional scratching mechanism.

[0041] By doing this, the paste (152) is more securely impregnated into the scratch groove (142SG) formed by the scratch portion (142) on the ceiling board (110) and hardened, thereby holding the cut wallpaper (120CP) to be more securely attached to the ceiling board (110), so that the cut wallpaper (120CP) can be maintained in a more secure and stable state on the outer surface of the ceiling board (110).

[0042] Meanwhile, the present invention may be configured to perform a step of restoring the insulation layer wallpaper by applying an insulation paste (152HP), which is a mixture of an insulation paint and a paste (152), to the inner surface of a cut wallpaper (120CP) that has been partially cut, and then reattaching the cut wallpaper (120CP) to the outer surface of the ceiling board (110) using the insulation paste (152HP).

[0043] In other words, the present invention is characterized by mixing an insulating paint and a general paste (152) to form an insulating paste (152HP), applying the insulating paste (152HP) to the inner surface of the cut wallpaper (120CP) that has been cut for the installation of the pipes of a system air conditioner, and then attaching the cut wallpaper (120CP) to the ceiling with the insulating paste (152HP) to restore the wallpaper (120) to its original state.

[0044] At this time, the insulating paint and paste (152) seep into the pores of the ceiling board (110) (mainly a gypsum board) and harden, so the existing wallpaper (120) can be restored. That is, since the insulating paste (152HP) mixed with the insulating paint and paste (152) hardens while impregnated into multiple pores connected to the outer surface inside the ceiling board (110), the cut wallpaper (120CP) is restored without falling off the ceiling board (110), and a height difference between the cut wallpaper (120CP) and the existing wallpaper (120) attached to the ceiling board can be prevented.

[0045] Meanwhile, in the present invention, a scratch portion (142) is created in the ceiling plate (110), and an insulating paste (152HP), which is a mixture of insulating paint and paste (152), is impregnated into the scratch groove (142SG) and cured. At this time, the scratch portion (142) can be formed by scratching the outer surface of the ceiling plate (110) using a conventional scratching mechanism.

[0046] In this way, the insulating paste (152HP) is more securely impregnated and hardened into the scratch groove (142SG) formed by the scratch portion (142) on the ceiling board (110), thereby holding the cut wallpaper (120CP) more securely attached to the ceiling board (110), so that the cut wallpaper (120CP) can be maintained in a more secure and stable state on the outer surface of the ceiling board (110). By impregnating and hardening the insulating paste (152HP) mixed with the insulating paint into the scratch portion (142) formed on the ceiling board (110), the work of restoring the wallpaper (120) to its original state, which is more securely attached to the ceiling board (110) by the cut wallpaper (120CP), can be performed while ensuring insulating performance.

[0047] In addition, the present invention further includes a winding wallpaper forming step in which the cut wallpaper (120CP) is rolled to one side to form a temporary winding wallpaper (120WP) so that the cut wallpaper (120CP) is not contaminated during the work for installing the piping of the system air conditioner.

[0048] In the present invention, a temporary attachment bracket (125) is used to stably maintain the dried state of the winding wallpaper (120WP).

[0049] A temporary attachment bracket (125) used in the above-mentioned winding wallpaper forming step is temporarily attached to the bottom surface of the existing wallpaper (120) in the outer area of ​​the above-mentioned cut wallpaper (120CP), and is configured to support the winding wallpaper (120WP) using the temporary attachment bracket (125).

[0050] At this time, the temporary attachment bracket (125) is attached to the outer surface of the existing wallpaper (120) by means of double-sided tape, and a support portion for the winding wallpaper (120WP) protrudes sideways from the temporary attachment bracket (125), so that the winding wallpaper (120WP) is placed on the support portion for the winding wallpaper (120WP), thereby allowing the cut wallpaper (120CP) to maintain the state of the rolled winding wallpaper (120WP). That is, by using the temporary attachment bracket (125), the case where the rolled cut wallpaper (120CP) unravels downward again is prevented, and the rolled state is maintained intact. By doing this, the effect of making the restoration work of reattaching the cut wallpaper (120CP) to the ceiling board (110) smoother can be expected.

[0051] Accordingly, the present invention is a method for installing a ceiling system air conditioner without damaging the existing wallpaper, implemented by going through the process of cutting a part of the existing wallpaper (120) for the piping work of the system air conditioner, rolling the cut wallpaper (120CP) neatly to one side so that it is not contaminated during the piping work, and neatly restoring the cut wallpaper (120CP) so that it is indistinguishable from the existing wallpaper (120) after the piping work is completed. Since there is no need to remove all the existing wallpaper (120) attached to the ceiling panel (110) for the piping work of the system air conditioner and re-wallpaper the existing wallpaper (120), and the cut wallpaper (120CP) formed by cutting a part of the existing wallpaper (120) for the piping work can be neatly restored after the piping work is completed, it has the effect of preventing in advance the case where the existing wallpaper (120) must be removed and re-wallpapered. In this way, the existing wallpaper (120) that has been partially cut for the piping work Since the cut wallpaper (120CP) is restored as is, the wallpaper (120) restoration work is performed easily and quickly, and there are advantageous effects in terms of economic aspects such as cost reduction. Furthermore, by neatly restoring the cut wallpaper (120CP) that was partially torn off, the system air conditioner piping work can also be performed easily and smoothly.

[0052] Meanwhile, FIG. 15 is a drawing showing the state in which a cutting guide is temporarily attached to the lower surface of a ceiling board during the execution of a method for installing a ceiling system air conditioner without damaging existing wallpaper according to another embodiment of the present invention, FIG. 16 is a bottom view of FIG. 15, FIG. 17 and FIG. 18 are side cross-sectional views schematically showing the process of forming a cut wallpaper by forming a cut line on the existing wallpaper with a work knife using the cutting guide shown in FIG. 15 and FIG. 16, FIG. 19 is a side view schematically showing the structure of a work table and a suction device used in a method for installing a ceiling system air conditioner without damaging existing wallpaper according to yet another embodiment of the present invention, FIG. 20 is a side cross-sectional view showing a partially enlarged view of the state in which a paste is applied to the cut wallpaper while the suction pad of the suction device shown in FIG. 19 has suctioned and fixed the cut wallpaper.

[0053] Referring to the drawings, the present invention is characterized by using a cutting guide (160) having a cutting guide line hole (162) when cutting existing wallpaper (120). The cutting guide (160) is positioned on an outer cutting guide frame spaced apart at a certain distance from the periphery of an inner cutting guide frame, so that the cutting guide line hole (162) is formed between the outer periphery surface of the inner cutting guide frame and the inner periphery surface of the outer cutting guide frame. Of course, the upper surfaces of the inner cutting guide frame and the outer cutting guide frame may be attached to the lower surface of the ceiling plate (110) with double-sided tape (164), so that the upper surface of the cutting guide (160) is temporarily attached to the lower surface of the ceiling plate (110). That is, in the present invention, a U-shaped cutting guide (160) is temporarily attached to the lower surface of the ceiling plate (110) by means of double-sided tape (164).

[0054] According to the present invention, when a general work knife (NF) is inserted into the cutting guide line hole (162) formed in the cutting guide (160) and the work knife (NF) is moved along the cutting guide line hole (162), the existing wallpaper (120) is cut neatly and smoothly along the cutting line (CL), so that the cut wallpaper (120CP) can be formed more easily and smoothly from the existing wallpaper (120). In the present invention, the cutting guide is configured in a U-shaped frame, and the cutting guide line hole (162) is in the shape of a U-shaped cutting line, so when the work knife is moved along the cutting guide line hole (162), a U-shaped cutting line (CL) is formed on the existing wallpaper (120), so the cut wallpaper (120CP) can be cut into the shape of a square wallpaper (120).

[0055] Meanwhile, after forming a cut line (CL) to create a cut wallpaper (120CP), the cutting guide (160) can be removed from the ceiling board (110) and the wallpaper (120) restoration work can be performed, so the wallpaper (120) restoration work can also be carried out smoothly.

[0056] In addition, the present invention uses a work table (172) for restoring the cut wallpaper (120CP), a suction device (180) is placed on the work table (172), and the cut wallpaper (120CP) is suctioned and spread flat by the suction pressure of the suction pad (182) of the suction device (180), and a paste (152) for attaching the ceiling board (110) is applied to the cut wallpaper (120CP) that has been spread flat. The suction pressure acts through a plurality of suction holes (184) provided in the suction pad (182), so that the cut wallpaper (120CP) is suctioned and spread flat by the suction pressure of the suction pad (182), and the paste (152) for attaching the ceiling board (110) can be applied to the cut wallpaper (120CP) that has been spread flat. Of course, the above temporary attachment bracket (125) can be removed from the existing wallpaper (120) attached to the ceiling, and the rolled-up cut wallpaper (120CP) can be unfolded downwards and suction pressure applied through the multiple suction holes (184) provided in the suction pad (182) so that the cut wallpaper (120CP) is suctioned by the suction pressure of the suction pad (182) and spread flat.

[0057] Therefore, when applying the paste (152) to the cut wallpaper (120CP), the cut wallpaper (120CP) is stably fixed without flowing, so the paste (152) can be applied more smoothly and easily to the cut wallpaper (120CP). At this time, in the present invention, an insulating paste (152HP) mixed with insulating paint and paste (152) may also be applied to the cut wallpaper (120CP).

[0058] Meanwhile, after the face for attaching the ceiling panel (110) is applied to the inner surface of the cut wallpaper (120CP), the suction pressure from the suction pad (182) is released, and after the suction pressure is released, the cut wallpaper (120CP) is lifted upward and the cut wallpaper (120CP) can be attached to the outer surface of the ceiling panel (110) with the paste (152) for attaching the ceiling panel (110).

[0059] Accordingly, the present invention has the effect of making it easier and smoother to perform the wallpaper (120) restoration work of reattaching the cut wallpaper (120CP) to the ceiling board (110) of the original location.

[0061] Terms such as "include," "compose," or "have" as described above, unless specifically stated otherwise, mean that the relevant component may be inherent; therefore, they should be interpreted as allowing for the inclusion of additional components rather than excluding them. All terms, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as those defined in advance, should be interpreted in accordance with their meaning in the context of the relevant technology and, unless explicitly defined in the present invention, should not be interpreted in an ideal or overly formal sense.

[0062] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0063] Accordingly, the embodiments described above are provided to fully inform those skilled in the art of the scope of the invention and should be understood as illustrative in all respects and not restrictive, and the invention is defined only by the scope of the claims. Explanation of the symbols

[0065] 110. Ceiling panel 120. Wallpaper 120CP. Cut-out wallpaper 120WP. Temporary winding wallpaper 125. Temporary attachment bracket 132. Cured finishing layer 134. Grinder 134GR. Grinding Roll 142. Scratch area 142SG. Scratch Home 152. Paste 152HP. Insulating paste 160. Cutting Guide 162. Incision guide line hole 164. Double-sided tape 172. Work Table 180. Suction device 182. Suction Pad 184. Suction hole

Claims

Claim 1 The method includes the step of cutting a portion of the existing wallpaper (120) to form a cut wallpaper (120CP) from the existing wallpaper (120) for the purpose of piping work for a system air conditioner installed on the ceiling, the step of installing the piping of the system air conditioner in the portion cut of the existing wallpaper (120), and the step of restoring the wallpaper by reattaching the portion cut wallpaper (120CP) to its original position. When cutting the existing wallpaper (120), a cutting guide (160) having a cutting guide line hole (162) is used. The cutting guide (160) is positioned on an outer cutting guide frame spaced at a certain distance from the periphery of an inner cutting guide frame, so that the cutting guide line hole (162) is formed between the outer periphery surface of the inner cutting guide frame and the inner periphery surface of the outer cutting guide frame. The upper surfaces of the inner cutting guide frame and the outer cutting guide frame The upper surface of the cutting guide (160) can be temporarily attached to the lower surface of the ceiling plate (110) by attaching it with double-sided tape (164), and the U-shaped cutting guide (160) is temporarily attached to the lower surface of the ceiling plate (110) by means of the double-sided tape (164). When a general work knife (NF) is inserted into the cutting guide line hole (162) formed in the cutting guide (160) and the work knife (NF) is moved along the cutting guide line hole (162), the existing wallpaper (120) is cut neatly and smoothly along the cutting line (CL). Additionally, a special restoration treatment step is added to specially treat the boundary between the existing wallpaper (120) and the restored cut wallpaper (120CP) so that there is no difference between the existing wallpaper (120) and the restored wallpaper (120). The special restoration treatment step includes applying a finishing liquid with a nozzle to the cut portion between the cut wallpaper (120CP) and the existing wallpaper (120).A method for installing a ceiling system air conditioner without damaging the existing wallpaper, characterized by removing the hardened finishing layer (132) protruding from the outer surface of the cut wallpaper (120CP) and the existing wallpaper (120) by grinding it with a grinder (134) after the finishing liquid has hardened. Claim 2 delete Claim 3 In claim 1, the method further includes a special paste restoration step for preventing peeling during the restoration of the wallpaper (120) by reattaching the cut wallpaper (120CP), which was temporarily cut for the installation of the pipes of the system air conditioner, to the ceiling board (110). The special paste restoration step is characterized by including: a step of forming a scratch portion (142) on the outer surface of the ceiling board (110) to which the cut wallpaper (120CP), which was temporarily cut for the installation of the pipes of the system air conditioner, is restored; a step of applying a paste (152) to the temporarily cut wallpaper (120); and a step of attaching the cut wallpaper (120CP) with the paste (152) applied to the outer surface of the ceiling board (110) so that a portion of the paste (152) is injected and hardened into the scratch portion (142), thereby preventing damage to the existing wallpaper. How to install a ceiling system air conditioner without Claim 4 A method for installing a ceiling system air conditioner without damaging the existing wallpaper, characterized in that, in claim 1, an insulating paste (152HP) mixed with insulating paint and paste (152) is applied to the inner surface of a cut wallpaper (120CP) that has been partially cut, and the cut wallpaper (120CP) is reattached to the outer surface of the ceiling board (110) using the insulating paste (152HP). Claim 5 A method for installing a ceiling system air conditioner without damaging existing wallpaper, characterized in that, in claim 1, the cut wallpaper (120CP) is rolled to one side to form a temporary winding wallpaper (120WP) so that the cut wallpaper (120CP) is not contaminated during the work for installing the piping of the system air conditioner. Claim 6 A method for installing a ceiling system air conditioner without damaging the existing wallpaper, characterized in that, in the 5th paragraph, a temporary attachment bracket (125) used in the winding wallpaper forming step is temporarily attached to the bottom surface of the existing wallpaper (120) in the outer area of ​​the cut wallpaper (120CP), and the winding wallpaper (120WP) is supported using the temporary attachment bracket (125).

Images