JP7365472B2 - Bathroom floor construction method and bathroom floor structure - Google Patents

Description

The present invention relates to a bathroom floor construction method for constructing a floor sheet material on a bathroom floor, and a bathroom floor structure.

In recent years, renovations of rooms, hallways, toilets, bathrooms, etc. in single-family homes, condominiums, dormitories, hotels, health care facilities for the elderly, nursing care facilities, hospitals, etc. have become popular. Here, when remodeling a bathroom, conventional methods include demolishing the entire bathroom and constructing a new bathroom or installing a unit bath, or replacing an existing unit bath with a new unit bath. However, these methods require a great deal of cost and time to construct, so the applicant has proposed a method of constructing a new floor sheet material on the existing floor as a simple bathroom renovation (for example, Patent Document 1) ).

Patent No. 5977312

By the above-described method of constructing a floor sheet material on the floor of an existing bathroom, the construction time and cost of renovation can be reduced. However, in the past, it was thought that it was necessary to completely join the existing floor of the bathroom and the new floor sheet material to be laid thereon. For this reason, in the above method, adhesive is applied to the entire surface of the existing floor of the bathroom and floor sheet material is laid, which requires time and man-hours to apply the adhesive, and the adhesive is not applied to the floor surface. After application, a certain amount of waiting time (open time) is required before the floor sheet material is laid. Therefore, it will take a considerable amount of time from the start of construction work until the bathroom can be used. In addition, since the floor sheet material is firmly adhered to the floor surface with adhesive, if you try to replace the floor sheet material during the next renovation, you will have to peel the floor sheet material from the floor and remove the hardened adhesive. In addition to requiring labor and time to remove the agent from the floor, the existing floor of the bathroom may also be damaged.

The present invention has been made with attention to the above-mentioned problems, and it provides a bathroom floor that allows for efficient construction of floor sheet materials on the bathroom floor and that allows for easy repositioning of the floor sheet materials constructed on the floor. The purpose is to provide a construction method and bathroom floor structure.

As a result of extensive research in view of the problems of the conventional technology, the inventors of the present invention have discovered that it is necessary to completely join the existing floor of the bathroom and the new floor sheet material to be laid on the floor, which was previously thought to be necessary. The inventors have overcome the idea that there is such a thing and discovered that the above object can be achieved by adopting the bathroom floor construction method and bathroom floor structure according to the present invention, and have completed the present invention.

The method for constructing a bathroom floor according to the present invention includes a pasting step of pasting double-sided tape on multiple locations on the bathroom floor, and a laying step of laying a floor sheet material on the floor via the pasted double-sided tape. In the pasting step, the double-sided tape is pasted at least along the periphery of the floor.

In the method for constructing a bathroom floor according to the present invention, it is preferable that in the pasting step, the double-sided tape is pasted on both sides of the toilet bowl provided on the floor in the width direction perpendicular to the longitudinal direction.

Further, in the bathroom floor construction method according to the present invention, the floor sheet material is provided with an opening corresponding to the external shape of a toilet provided on the floor and a notch extending from the opening, and the above-mentioned pasting In the step, it is preferable that the double-sided tape is applied so as to overlap the cut.

Further, in the method for constructing a bathroom floor according to the present invention, the double-sided tape is pasted such that the distance between adjacent double-sided tapes is 70 cm or less in at least one of the vertical and horizontal directions of the floor. It is preferable that

Further, in the bathroom floor construction method according to the present invention, a first sealing material interposed between at least one of a bathroom wall, a bathtub wall, and a drain and an end of the floor sheet material, and/or a toilet wall It is preferable to further include a sealing material installation step of providing on the floor a second sealing material interposed between the opening edge of the floor sheet material and the opening edge of the floor sheet material.

The bathroom floor structure according to the present invention includes a bathroom floor, a double-sided tape attached to a plurality of locations on the floor, and a floor sheet material laid on the floor via the double-sided tape, and the double-sided tape includes: The tape is attached at least along the periphery of the floor.

In the bathroom floor structure according to the present invention, a first sealing material provided on the floor so as to be interposed between an end of the floor sheet material and at least one of a bathroom wall, a bathtub wall, and a drain, and/or It is preferable to further include a second sealing material provided on the floor so as to be interposed between the toilet bowl wall surface and the opening edge of the floor sheet material.

According to the present invention, the floor sheet material is installed on the floor using double-sided tape, without applying adhesive to the entire surface of the existing floor of the bathroom, as previously thought. Floor sheet materials can be installed without waiting time (open time), and the work of applying double-sided tape does not require a long time like the work of applying adhesive. Therefore, the construction work of the floor sheet material can be performed efficiently.

In addition, by installing the floor sheet material on the floor using double-sided tape, the floor sheet material can be easily peeled off from the floor surface and replaced when the floor sheet material is to be replaced during the next renovation etc. . Therefore, unlike when only adhesive is used, it is not difficult to peel the floor sheet material from the floor surface, and the adhesive is not difficult to peel off from the floor surface, and the work of peeling the floor sheet material from the floor surface and the hardened This eliminates the need for labor and time to remove adhesive from the floor surface. Therefore, workability during renovation can be improved. Additionally, since the existing floor of the bathroom is preserved, there is no need to scrape the floor surface or fill it with leveling material to make it smooth.

Furthermore, by applying the floor sheet material on the floor using double-sided tape, the curing and drying time of the adhesive is not required compared to the case where an adhesive is used. Therefore, the bathroom can be used in a short time after the installation of the floor sheet material is completed.

In addition, if the existing floor of the bathroom is made of tiles etc. and has deep joints or steps between the joints, or if the existing floor of the bathroom is made of fiber reinforced plastic (FRP) etc. When there are relatively large irregularities on the floor, such as when grooves or steps are formed, or when the floor has cracks or depressions for some reason, the floor sheet material can be used as is with adhesive. When pasted, such unevenness may appear on the floor sheet material. Therefore, when performing construction using an adhesive on such an uneven floor surface, it is necessary to repair the underlying floor to make it smooth before applying the adhesive. Repairing a floor to make it smooth requires a considerable amount of manpower and time, and requires a high level of skill from the installer, which results in cost and effort. On the other hand, by applying the floor sheet material on the floor using double-sided tape, it is possible to suppress the appearance of the joints on the floor sheet material. Therefore, since there is no need to repair the underlying floor to make it smooth before construction, it is possible to significantly reduce labor and time and shorten the construction period. Furthermore, since high skill is not required of the constructor, a wider range of constructors can carry out the construction.

In addition, double-sided tape is pasted on the floor at least along the periphery, and the edges of the floor sheet material are adhered to this double-sided tape, so it has a water-stopping effect and can be placed under the floor sheet material. Water can be prevented from going around. Therefore, even if the floor sheet material is constructed on the floor using double-sided tape, the floor sheet material can be satisfactorily fixed to the floor.

FIG. 3 is a plan view of the bathroom floor before floor sheet material is installed. FIG. 2 is a plan view of a floor sheet material to be applied to a bathroom floor. FIG. 3 is a plan view of the sheet end member. FIG. 4 is a longitudinal cross-sectional view of the sheet end member of FIG. 3; It is a bottom view of the toilet bowl surrounding member. FIG. 6 is a longitudinal sectional view of the toilet bowl surrounding member of FIG. 5; It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. It is an explanatory view showing a procedure for constructing a floor sheet material on a bathroom floor. FIG. 7 is a longitudinal cross-sectional view of a modified example of the sheet end member. It is a longitudinal cross-sectional view of a modification of the member surrounding the toilet bowl.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The present invention relates to a bathroom floor construction method for constructing a floor sheet material on the existing floor of a bathroom during bathroom renovation, and a bathroom floor structure in which the floor sheet material is constructed on the existing floor of the bathroom.

The bathroom floor construction method of this embodiment includes (i) a process of pasting double-sided tape, (ii) a process of installing a first sealant, (iii) a process of laying a floor sheet material, and (iv) a process of laying a floor sheet material. and a pressing step. In addition, when constructing a floor sheet material on an existing floor equipped with a toilet bowl, the bathroom floor construction method of this embodiment includes (i) a step of pasting double-sided tape, and (ii) a step of installing a first sealing material. (iii) a step of laying a floor sheet material; (iv) a step of installing a second sealing material; and (v) a step of pressing the floor sheet material. Note that the method for constructing a bathroom floor according to the present invention is not limited to performing each step in the order described above.

Hereinafter, the bathroom floor construction method, bathroom floor structure, and various members used in the construction method of the present embodiment, specifically, the floor sheet material, the sheet end member as the first sealing material, the second The toilet bowl surrounding member as a sealing material will be explained.

First, FIGS. 1(a) and 1(b) show an example of a bathroom to which the bathroom floor construction method of this embodiment is applied. FIG. 1(a) shows an example of a two-piece unit bath in which a bathtub 10 and a washstand 11 are integrated with a floor 13, a wall (bathroom wall) 14, a ceiling (not shown), etc. In b), a three-piece unit bath is taken as an example in which a bathtub 10, a washstand 11, and a toilet bowl 12 are integrated with a floor 13, a wall (bathroom wall) 14, a ceiling (not shown), and the like. In the following description, in FIGS. 1A and 1B, the up-down direction is the vertical direction of the floor 13, and the left-right direction is the lateral direction of the floor 13.

A 3-piece unit bath is one in which a bathtub 10, a washstand 11, and a toilet 12 are integrated, and a 2-piece unit bath is one in which a bathtub 10 and a washstand 11 are integrated, or a bathtub 10 and a toilet 12 are integrated. It refers to a combination of two things. In the floor 13 of FIG. 1(a), a drain groove 15 is provided at a position adjacent to the wall surface (bathtub wall surface) 10A of the bathtub 10, and a drain port 16 is provided in the drain groove 15. Note that the drain 15 may also extend along the bathroom wall surface 14 and may be provided so as to surround the entire circumference of the floor 13. Moreover, in the floor 13 of FIG. 1(b), there is no drain 15 at a position adjacent to the bathtub wall surface 10A, and only a drain port 16 is provided, so that the bathroom floor 13 is connected to the bathtub wall surface 10A.

In addition, in the floor 13 of FIG. 1(a), there is no drain 15 at a position adjacent to the bathtub wall surface 10A, and the floor 13 of the unit bath may be connected to the bathtub wall surface 10A, and the floor 13 of FIG. 1(b) In this case, a drain groove 15 may be provided at a position adjacent to the bathtub wall surface 10A. Furthermore, the scope of application of the present invention is not necessarily limited to 3-piece unit baths or 2-piece unit baths, and in addition to unit baths with only 10 bathtubs, the scope of application of the present invention also applies to bathrooms built using conventional construction methods. include. In particular, the present invention has excellent workability in construction in a narrow space, so it can be suitably used in two-piece unit baths and three-piece unit baths.

Next, the floor sheet material 2 is a sheet material that is constructed on the bathroom floor 13 to improve the design and functionality of the bathroom, as shown in FIGS. 2(a) and 2(b). The shape of the floor sheet material 2 in plan view is not particularly limited, and may be formed in an elongated shape or in a rectangular or polygonal shape like a floor tile. From the viewpoint of water resistance and workability, it is preferable that the floor sheet material 2 consists of a single sheet without joints. The floor sheet material 2 formed in a long shape is usually wound into a roll for storage and transportation.

The shape of the surface of the floor sheet material 2 is not particularly limited, but may be, for example, an uneven shape having a protrusion or an inclined surface having anti-slip properties.

Further, the surface layer of the floor sheet material 2 may contain a weatherproofing agent, a plasticizer, a stabilizer, a filler, a dispersant, a coloring agent such as a dye or a pigment, a solvent, etc., as necessary.

In addition, it is better to configure the surface of the floor sheet material 2 to have a low gloss level rather than to configure it to have a high gloss level, so that when unevenness or unevenness of the base material appears on the surface of the floor sheet material 2, it is difficult to see it with the human eye. It is preferable because it is effective. In order to make the exposed unevenness difficult to see with the human eye, the glossiness (60°) is preferably 0.3 or more and 60 or less, more preferably 0.5 or more and 30 or less. Note that the glossiness (60°) can be measured using a glossiness measuring device such as GM-3D (manufactured by Murakami Color Research Institute Co., Ltd.). Examples of methods for lowering the gloss include adding a matting agent such as silica or plastic beads to the surface layer of the floor sheet material 2, and adding protrusions or slopes to provide anti-slip properties. Another method may include forming fine irregularities on the surface. Small fine embossing tends to suppress the gloss level more than large fine embossing. Due to the formation of fine irregularities, light that hits the surface of the floor sheet material 2 is diffusely reflected, resulting in low gloss. The surface roughness of the fine irregularities is not particularly limited, but if it is too rough, it may appear to have high gloss depending on the direction of light reflection, whereas if it is too fine, it may look almost like a mirror surface. From this viewpoint, the surface roughness (center line average roughness (Ra) according to JIS B 0601) is preferably 5 μm or more and 15 μm or less, more preferably 6 μm or more and 10 μm or less. The unevenness and protrusions on the surface of the floor sheet material 2 are usually formed by embossing, but the embossing method is not particularly limited, and a known single-fed or rotary embossing machine can be used. . The uneven shapes include, for example, wood grain board conduit grooves, stone plate surface unevenness (granite cleavage surface, etc.), cloth surface texture, satin finish, sand grain, hairline, parallel grooves, V-cut shape, fine net shape, fine dot shape, Examples include striped shapes. In addition to embossing, fine irregularities can be formed by roughening the surface by sandblasting or sanding, or by embedding fine particles such as filler into the surface.

Examples of the functionality of the floor sheet material 2 include anti-slip properties, cushioning properties, heat shielding properties, and improved contact thermal sensation. The floor sheet material 2 preferably has appropriate cushioning properties to enhance pain resistance, and also has heat insulating properties to reduce heat shock and enhance the sense of warmth in the bathroom, so it is preferable to include a foam layer. preferable. The floor sheet material 2 may be entirely formed of a foam layer, but if a protrusion or slope that is difficult to collapse is formed on the surface of the sheet body to increase slip resistance, it may have a non-foam surface layer. It is preferable. In addition, it is preferable to have flexibility so that it can be wound into a roll so that it can be easily stored and transported and also easily transported into the bathroom during construction.

The material of the floor sheet material 2 is not particularly limited as long as it can be applied on the bathroom floor 13. For example, a flexible resin sheet such as vinyl chloride resin or olefin resin may be used. can. Among these, it is preferable to use vinyl chloride resin as the main resin component because it has excellent workability with flexibility, durability, and cost. Due to its excellent flexibility, vinyl chloride resin can construct a flexible bathroom floor surface, and the floor sheet material 2 can be easily stored and transported by being rolled up into a roll, and it can also be easily transported into the bathroom during construction. There is also an advantage. Furthermore, it is preferable to use a vinyl chloride resin because it has excellent adhesion to the underlying surface during renovation.

The floor sheet material 2 may have a single layer structure or a multilayer structure formed by laminating a plurality of layers. In the case of a multilayer structure, a two or more layer structure can be adopted.

The thickness of the floor sheet material 2 is not particularly limited, but it is usually in the range of 1.8 mm or more and 5.0 mm or less, and particularly preferably 2.0 mm or more and 4.0 mm or less. The thickness of the floor sheet material 2 refers to the maximum layer thickness when the thickness is uneven, such as when it is embossed. When the thickness is 1.8 mm or more, it is easy to ensure strength, and when the thickness is 5 mm or less, flexibility increases, so workability when performing construction in a narrow bathroom is improved. Furthermore, even if the floor sheet material 2 is installed on the existing floor of the bathroom during renovation, by keeping the thickness to 5 mm or less, fluctuations in the floor height after renovation can be kept within a range that does not cause problems. Above all, you can maintain the aesthetic appearance after renovation. Furthermore, if the thickness of the floor sheet material 2 is within the above range, it is possible to suppress unevenness and unevenness of the base from appearing on the surface of the floor sheet material 2.

The floor sheet material 2 may be provided with one or more reinforcing layers to increase its rigidity and provide dimensional stability. When a plurality of reinforcing layers are provided in the thickness direction, even if there are relatively large unevenness on the floor surface, the floor sheet material 2 is difficult to follow the unevenness of the floor surface, and the floor sheet material 2
The appearance of unevenness on the surface can be further suppressed. Examples of the reinforcing layer include glass mats, glass nets, resin mats, resin nets, nonwoven fabrics or felts made of inorganic fibers or organic fibers, and woven fabrics, which have excellent strength and are resistant to dimensional change. It is particularly preferable to use glass fiber because it has a small value. When using glass fibers, glass fiber woven fabrics or non-woven fabrics with a basis weight of 10 g/m ² or more and 100 g/m ^{2 or} less are particularly preferred. Also, for woven fabrics or non-woven fabrics using other fibers such as polyester, the same level of basis weight is preferable. If the rigidity increases during renovation work, it will be difficult to shift and deform even if it is not fully adhered to the underlying surface. Moreover, if the basis weight of the glass fiber is within the above range, it is possible to suppress unevenness and unevenness of the base from appearing on the surface of the floor sheet material 2.

Further, a base material layer may be provided on the lowermost side of the floor sheet material 2 for the purpose of increasing adhesive strength with the double-sided tapes 3A to 3D and preventing displacement of non-adhered portions. The base material layer is not particularly limited, and for example, conventionally known sheet materials such as nonwoven fabric, woven fabric, paper, and felt can be used. The material of the fibers constituting the nonwoven fabric or woven fabric is not particularly limited, and includes, for example, synthetic resin fibers such as polyester and polyolefin; inorganic fibers such as glass and carbon; and natural fibers. Examples of the nonwoven fabric include spunbond nonwoven fabric, thermal bond nonwoven fabric, chemical bond nonwoven fabric, needle punched nonwoven fabric, and spunlace nonwoven fabric. These can be used alone or in combination of two or more. Among these, spunbond nonwoven fabric is preferred because it is thin and strong, and polypropylene spunbond nonwoven fabric is more preferred.

The thickness of the base material layer is not particularly limited, but is, for example, 0.1 mm or more and 0.5 mm or less, preferably 0.2 mm or more and 0.4 mm or less. Further, the basis weight of the base material layer is not particularly limited, and is, for example, 30 g/m ² or more and 70 g/m ² or less. If the thickness and basis weight of the base material layer are within the above ranges, it is possible to suppress unevenness and unevenness of the base from appearing on the surface of the floor sheet material 2.

In addition, the floor sheet material 2 constructed on the floor 13 equipped with the toilet bowl 12 as shown in FIG. A notch 23 extending into the portion 22 is formed in advance. Furthermore, a notch 24 corresponding to the outer shape of the drain port 16 is also formed in the floor sheet material 2 shown in FIG. 2(b).

Next, the sheet end member 4 (first sealing material) is attached to the end portion 20 of the floor sheet material 2 that is installed on the floor 13 of the bathroom. Here, when constructing the floor sheet material 2 on the floor 13 of the bathroom, the constructor cuts the floor sheet material 2 to the size of the floor 13 and drains the end portion 20 of the floor sheet material 2. It is necessary to fix it along the groove 13 or the bathroom wall 14. However, if the floor sheet material 2 is cut in advance, the cutting accuracy of the end portion 20 of the floor sheet material 2 will vary depending on the skill of the installer. If the cutting precision of the end portion 20 of the floor sheet material 2 is poor, the end portion 20 of the floor sheet material 2 may become wavy, uneven, or sloped, and the end portion 20 of the floor sheet material 2 may not neatly follow the drain 15 or bathroom wall surface 14, or the floor sheet may There may be variations in the gap between the end portion 20 of the material 2 and the drain 15, the bathroom wall surface 14, etc., or the gap may become large. As a result, the finish of the bathroom floor after construction deteriorates. On the other hand, when the sheet end member 4 is attached to the end 20 of the floor sheet material 2, the sheet end member 4 covers the end 20 of the floor sheet material 2 from above. Even if variations occur in the cutting precision of the end portions 20 of the floor sheet material 2, the bathroom floor can be uniformly finished to a good quality regardless of whether the cutting precision is good or bad, and the aesthetic appearance of the bathroom can be prevented from being spoiled.

As shown in FIGS. 3 and 4, the sheet end member 4 is formed into an elongated shape having a predetermined length. The elongated shape refers to a shape in which the length in one direction is sufficiently longer than the length in another direction orthogonal to the one direction. The elongated sheet end member 4 is cut to an appropriate length during construction and placed at the boundary with the drain 15 on the floor 13, the bathroom wall 14, the bathtub wall 10A, and the like. Further, the sheet end member 4 has flexibility and can be easily bent manually. For example, when the drainage groove 15 is curved, it can be bent along the drainage groove 15. It can be placed on the floor 13. Note that, after being bent, the sheet end member 4 preferably has elasticity so that it tends to return to its original state when the force is released.

The material of the sheet end member 4 is not particularly limited as long as it has flexibility, but it satisfies the durability necessary for use on a bathroom floor, such as water resistance, abrasion resistance, and impact resistance. Preferably, it is made of a material. Examples of the constituent materials of the sheet end member 4 include polyvinyl chloride resin, polypropylene resin, polyethylene resin, urethane resin, polyester resin, acrylic resin, ethylene-vinyl acetate copolymer, olefin thermoplastic elastomer, and styrene thermoplastic elastomer. Examples include soft or semi-hard resin materials such as plastic elastomers, polyester thermoplastic elastomers, urethane thermoplastic elastomers, and ABS (acrylonitrile-butadiene-styrene copolymer synthetic resin). In particular, it is preferable to form the sheet end member 4 from a polyvinyl chloride resin because it has excellent workability, easy adjustment of hardness, and excellent cost. The sheet end member 4 can be formed by extrusion molding using the above-mentioned constituent materials.

The sheet end member 4 includes an elongated main body 5, a thin plate-like cover 6A that is integrally formed with the main body 5 over the entire length of the main body 5 in the one direction (lengthwise direction), and The main body part 5 is provided with a thin plate-like support part 6B integrally formed with the cover part 6A in an upper and lower pair over the entire length in the longitudinal direction.

The cover part 6A protrudes laterally from the main body part 5 substantially horizontally at the upper part of the main body part 5, and has an upper surface flush with and continuous with the upper surface 50 of the main body part 5. Further, the support portion 6B protrudes laterally from the main body portion 5 substantially horizontally at the lower portion of the main body portion 5, and has a lower surface that is flush with and continuous with the lower surface 51 of the main body portion 5. A recess D1 is formed below the cover portion 6A on the side of the main body portion 5, in which the end portion 20 of the floor sheet material 2 is placed. The end portion 20 of the floor sheet material 2 placed in the recess D1 is placed on the support portion 6B and covered from above by the cover portion 6A.

The main body portion 5 may have a solid shape, as shown in FIG. 4(a), or may have a hollow shape with a cavity O inside, as shown in FIG. 4(b). Good too. It is preferable that the main body part 5 has a hollow shape, since the sheet end member 4 can be easily bent and the cover part 6A can be easily lifted upward. The main body portion 5 has an upper surface 50, a lower surface 51, and a vertical surface 52.

The lower surface 51 of the main body portion 5 is a flat surface that contacts the floor surface of the bathroom via the double-sided tape 3A (shown in FIG. 7). The vertical surface 52 of the main body portion 5 faces the end portion 20 of the floor sheet material 2 disposed in the recess D1.

As shown in FIG. 4(a), in this embodiment, the upper surface 50 of the main body portion 5 has a configuration in which a flat surface 50A and an inclined surface 50B that descends toward the opposite side from the cover portion 6A are connected. The main body portion 5 has a slope portion 53 having a triangular shape in cross section. In the slope portion 53, the angle α between the inclined surface 50B and the lower surface 51 is an acute angle, for example, 5° or more and 60° or less, preferably 15° or more and 40° or less. This slope portion 53 (slanted surface 50B) allows water on the floor sheet material 2 to smoothly flow through the sheet end member 4 into the drain groove 15 or the like. In addition, the slope portion 53 (sloped surface 50B) makes the main body portion 5 have a substantially triangular cross-sectional shape with sharpened corners at the tip, so that the upper surface 50 is a flat surface and there is no slope portion 53 (sloped surface 50B). When the sheet end member 4 is attached to the boundary with the drain groove 15 on the floor, the bathroom wall 14, the bathtub wall 10A, etc., than the main body 5, which has a rectangular cross-sectional shape with the corner of the tip at a right angle, The corner of the tip can be prevented from being easily rolled up. This eliminates the level difference, reduces the pressure applied from the sides, and makes it difficult for the sheet end member 4 to peel off from the floor surface. Moreover, the main body part 5 has a substantially triangular shape in cross-section, so that even if the tip of a pedestrian's foot hits the tip of the main body part 5, the foot can slide along the slope of the slope part 53 (sloped surface 50B). This allows you to walk without feeling uncomfortable. Incidentally, the inclination angle α of the inclined surface 50B may be flat or curved (concave curved surface, convex curved surface) as long as it has a downward slope.

In addition, the main body part 5 can have an upper part 5A and a lower part 5B like the embodiment shown in FIG.4(b), and can be comprised so that the upper part 5A and the lower part 5B may be connected so that it can be opened and closed. In the embodiment shown in FIG. 4(b), a cover portion 6A is provided on the upper portion 2A, and a support portion 6B is provided on the lower portion 2B. The upper part 5A and the lower part 5B are divided by a cavity O in the main body part 5 and a cavity G extending from the recess D1 to the cavity O, and are connected to the lower part 5B of the upper part 5A, as shown in FIG. 12, which will be described later. By bending the upper portion 5A using the base portion as a bending fulcrum (hinge), the upper portion 5A can be opened and closed relative to the lower portion 5B.

Here, in order to make the upper part 5A easier to open and close, it is preferable that the part 54 on the root side of the upper part 5A connected to the lower part 5B be softer than the remaining part of the upper part 5A. This makes it easier for the base side portion of the upper portion 5A to bend, making it easier to open and close the upper portion 5A.

In this case, the hardness of the part (soft part) 54 of the upper part 5A is not particularly limited, but it prevents the soft part 54 from being easily deformed by a load from above when the upper part 5A is closed. It needs to be as hard as possible. On the other hand, by not making the soft portion 54 too hard, the upper portion 5A can be opened easily. Therefore, the hardness of the soft portion 54 is preferably, for example, 20 or more and 60 or less in Shore D hardness, and more preferably 35 or more and 45 or less. Further, the hardness of the remaining portion other than the soft portion 54 of the upper portion 5A and the lower portion 5B is not particularly limited as long as it is harder than the soft portion 54, but by not making it too hard, the drain 15, the bathroom When the wall surface 14, the bathtub wall surface 10A, etc. are curved, it becomes easy to bend and arrange the sheet end member 4 along the drain groove 15, etc., but when the drain groove 15 etc. are linear In order to arrange the sheet end member 4 in a straight line along the drain groove 15 etc., appropriate hardness is required. Therefore, the hardness of the remaining portion other than the soft portion 54 of the upper portion 5A and the lower portion 5B is preferably 40 or more and 80 or less in Shore D hardness, and more preferably 55 or more and 65 or less. Shore D hardness can be measured according to JIS K7215 using a durometer type D Asker rubber hardness meter (manufactured by Kobunshi Keiki Co., Ltd.).

When the soft part 54 is provided in the upper part 5A of the main body part 5, it is recommended that the soft part 54, the remaining part other than the soft part 54 of the upper part 5A, and the lower part 5B be formed of the same combination of materials so that they can be firmly integrally molded. It is preferable because it is easy to process. For example, suitable combinations include soft polyvinyl chloride resin and semi-hard polyvinyl chloride resin. A combination of a soft polyvinyl chloride resin and a semi-rigid polyvinyl chloride resin is particularly suitable because integral molding can be easily performed and the joint surface is strong.

Although the sheet end member 4 of the embodiment shown in FIG. 4(b) is provided with a soft portion 54 in the upper portion 5A of the main body portion 5, it can also be configured without providing the soft portion 54.

A curved surface is formed at the connecting portion of the upper portion 5A and the lower portion 5B, and for example, a cavity 55 having a circular cross-sectional shape extending in the length direction of the main body portion 5 is provided. Thereby, the stress that acts when opening and closing the upper portion 5A can be alleviated, so that the durability of the upper portion 5A can be improved. The cavity 55 does not need to have a circular cross-sectional shape, and may have a circular cross-sectional shape.

Note that the seat end member 4 of the embodiment shown in FIG.
Although a cavity 55 is provided at the connecting portion of , it is also possible to configure the structure without providing the cavity 55 .

The lower portion 5B has a wall portion 56 facing the end portion 20 of the floor sheet material 2 disposed in the recess D1. The wall portion 56 is provided over the entire length of the main body portion 5 in the longitudinal direction at a position adjacent to the recess D1, and the end surface of the wall portion 56 on the recess D1 side forms the vertical surface 52 of the main body portion 5. Although the details will be described later, this wall portion 56 is for cutting the floor sheet material 2 along the length direction of the main body portion 5 to prevent the end portion 50 of the floor sheet material 5 from slipping out of the recess D1. In addition, as shown in FIG. 14, which will be described later, it functions as a cutting guide that can cut the floor sheet material 2 by applying a cutting tool such as a cutter C. In addition, in the embodiment of FIG.4(b), the wall part 56 is formed as a part of lower part 5B, but may be formed as part of upper part 5A.

Further, in the embodiment shown in FIG. 4B, the wall portion 56 has an L-shape in cross section with an upper end bent in a hook shape (right angle), and is mutually connected to the first engaging portion 57 of the upper portion 5A. It also functions as a second engaging portion that engages removably. That is, the upper part 5A has a first engaging part 57 that is adjacent to the wall part 56 (second engaging part) of the lower part 5A with the gap G in between when the upper part 5A is closed. The first engaging portion 57 has an L-shape in cross section with a lower end bent in a hook shape (right angle), and can be engaged with the wall portion 56, which is the second engaging portion, with a simple configuration. . When the upper part 5A is closed, the first engaging part 57 and the wall part 56 (second engaging part) engage with each other by hooking the ends, so that the upper part 5A is maintained in the closed state. .

In the sheet end member 4 having the above configuration, the thickness of the cover portion 6A is not particularly limited, but if it is too thin, the durability will be poor, while if it is too thick, water flowing down on the floor sheet material 2 will be covered. It accumulates at the step at the boundary with the portion 6A, and cannot be smoothly discharged from the sheet end member 4 to the drain groove 15. Therefore, the thickness of the cover portion 6A is preferably 0.2 mm or more and 1.0 mm or less, and more preferably 0.3 mm or more and 0.5 mm or less.

Further, the width l2 of the cover portion 6A is not particularly limited, but if it is too narrow, the end portion 20 of the floor sheet material 2 will be cut from the dent D1 when the cutting precision of the end portion 20 of the floor sheet material 2 is poor. On the other hand, if it is too wide, the appearance of the sheet end member 4 will be poor, while it may protrude and create a gap, resulting in poor construction. Therefore, the width l2 of the cover portion 6A is preferably 3 mm or more and 15 mm or less, and more preferably 5 mm or more and 10 mm or less.

Further, the thickness of the support portion 6B is not particularly limited, but is preferably, for example, 0.2 mm or more and 1.0 mm or less, and more preferably 0.3 mm or more and 0.5 mm or less. If the lower limit value or more, the durability of the support part 6B is sufficient, while if it is less than the upper limit value, the floor sheet material 2 will easily climb onto the support part 6B, and the space between the floor sheet material 2 and the floor 13 will be reduced. The gap between can be reduced. Note that the support portion 6B may be formed in a tapered shape so that the thickness becomes gradually thinner toward the tip, so that the floor sheet material 2 can smoothly ride onto the support portion 6B from the floor surface of the bathroom.

Further, the width L1 of the lower surface of the sheet end member 4 (the sum of the width l1 of the lower surface 51 of the main body part 5 and the width l3 of the support part 6B) is not particularly limited, but is preferably 10 mm or more and 50 mm, for example. or less, more preferably 15 mm or more and 25 mm or less. When it is at least the lower limit, the adhesive area between the sheet end member 4 and the floor 13 will be sufficient, and the sheet end member 4 will be difficult to peel off from the floor 13. On the other hand, if it is below the upper limit, there is no need to widen the width of the double-sided tape 3A applied to the floor 13, making it easier to apply the double-sided tape 3A, and securing work space in the bathroom. , the work efficiency during construction will be improved.

Also, the height H1 of the recess D1 (in this embodiment, the height between the cover part 6A and the support part 6B)
is not particularly limited, and can be set to various heights depending on the thickness of the floor sheet material 2, but within a range of 0.2 mm or more and 0.6 mm or less than the thickness of the floor sheet material 2. It is preferable to set it high, and it is more preferable to set it high in the range of 0.3 mm or more and 0.5 mm or less. This makes it easy to fit the end portion 20 of the floor sheet material 2 into the recess D1, and makes it difficult for water to enter. Note that the floor sheet material 2 is often embossed on the surface in order to improve slip resistance, but by setting the height H of the recess D1 within the above range, the edge of the floor sheet material 2 It is possible to achieve both ease of fitting of the device 20 and suppression of water intrusion.

Next, the toilet bowl surrounding member 7 (second sealing material) is attached to the opening edge 22 of the floor sheet material 2 constructed on the floor 13 of the bathroom. Here, when constructing the floor sheet material 2 on the floor 13 of the bathroom equipped with the toilet bowl 12, the builder cuts out the part of the floor sheet material 2 that will be in contact with the toilet bowl 12 in advance, It is necessary to form an opening 21 in the floor sheet material 2. However, if the floor sheet material 12 is cut in advance, the cutting accuracy of the opening edge 22 of the floor sheet material 2 will vary depending on the skill of the installer. If the cutting precision of the opening edge 22 of the floor sheet material 2 is poor, the opening edge 22 of the floor sheet material 2 will have undulations, irregularities, and inclinations, and will not fit neatly with the toilet wall surface 12A, or the floor sheet material 2 will not fit properly. There may be variations in the gap between the opening edge 22 and the toilet wall surface 12A, or the gap may become large. As a result, the finish of the bathroom floor after construction deteriorates. Furthermore, if there is a gap in the opening edge 22 of the floor sheet material 2 located around the toilet bowl 12, water, urine, filth, etc. may enter the gap and get around to the back side of the floor sheet material, causing contamination. arise. In particular, in the case of a unit bath having a toilet bowl 12 and a bathtub 10, there is a concern that water overflowing from the bathtub 12 may enter the gap. On the other hand, when the toilet bowl surrounding member 7 is attached to the opening edge 22 of the floor sheet material 2, the toilet bowl surrounding member 7 covers the opening edge 22 of the floor sheet material 2 from above. Even if there are variations in the cutting precision of the opening edges 22 of the floor sheet material 2, the bathroom floor can be uniformly finished to a good quality regardless of whether the cutting precision is good or bad, and the aesthetic appearance of the bathroom can be prevented from being spoiled.

As shown in FIGS. 5 and 6, the toilet bowl surrounding member 7 is formed into an elongated shape having a predetermined length. The toilet bowl surrounding member 7 is used after being cut to an appropriate length during construction. Moreover, the toilet bowl surrounding member 7 has flexibility and can be easily bent manually. By bending the toilet bowl surrounding member 7, the toilet bowl surrounding member 7 can be aligned along the circumferential direction of the toilet wall surface 12A as shown in FIG. 19, which will be described later, and can be placed around the toilet bowl 12 on the floor 13. . The toilet bowl surrounding member 7 preferably has such flexibility that it does not return to its original state when the force is released after bending. In addition, in FIG. 6 (and FIG. 9 described later), V indicates the vertical direction, and P indicates the horizontal direction. In addition, in the toilet bowl surrounding member 7, the toilet wall surface 12A side is defined as the inside (backward), and the opposite side of the floor sheet material 2 is defined as the outside (front).

The material for the toilet bowl surrounding member 7 is not particularly limited as long as it has flexibility, but it satisfies the durability necessary for use on the floor around the toilet, such as water resistance, abrasion resistance, and impact resistance. Preferably, it is made of a material. The constituent materials of the toilet bowl surrounding member 7 include, for example, polyvinyl chloride resin, polypropylene resin, polyethylene resin, urethane resin, polyester resin, acrylic resin, ethylene-vinyl acetate copolymer, olefin thermoplastic elastomer, and styrene thermoplastic. Examples include soft resin materials such as elastomers, polyester thermoplastic elastomers, and urethane thermoplastic elastomers. In particular, it is preferable to form the toilet bowl surrounding member 7 from polyvinyl chloride resin because it has excellent workability, easy adjustment of hardness, and is cost effective. The toilet bowl surrounding member 7 can be formed by extrusion molding using the above-mentioned constituent materials.

The toilet bowl surrounding member 7 includes an elongated main body 8 and a plate-shaped leg 9 that is integrally formed with the main body 8 over the entire length of the main body 8 in the one direction (lengthwise direction). . The main body portion 8 has a bottom wall surface 80, an inner wall surface 81, and an outer wall surface 82, and has a substantially triangular shape in cross section in this embodiment. The legs 9 protrude downward from the main body 8 and form a recess D2 below the main body 8 in which the opening edge 22 of the floor sheet material 2 is arranged. The recess D2 is a space surrounded by the bottom wall surface 80 of the main body portion 8 and the outer surface 90 of the leg portion 9.

The bottom wall surface 80 of the main body portion 8 covers the opening edge 22 of the floor sheet material 2 disposed in the recess D2 from above. The height T1 of the recess D2 (the height of the outer surface 90 of the leg portion 9) is not particularly limited, and can be set to various heights depending on the thickness of the floor sheet material 2. It is preferably set higher than the thickness of the material 2 in the range of 0.5 mm or more and 0.9 mm or less, and more preferably set higher in the range of 0.6 mm or more and 0.8 mm or less. This makes it easy to fit the opening edge 22 of the floor sheet material 2 into the recess D2, and makes it difficult for water to enter. In the case of a unit bath, the floor sheet material 2 is often embossed on the surface to improve slip resistance, but by setting the height T1 of the recess D2 within the above range, the floor sheet material 2 It is possible to achieve both ease of fitting of the opening edge 22 of the material 2 and suppression of water intrusion.

In this embodiment, the bottom wall surface 80 is an inclined surface that slopes downward toward the side opposite to the leg portion 9. The inclination angle β of the bottom wall surface 80 is not particularly limited, but is set to, for example, 2° or more and 10° or less. The bottom wall surface 80 may be a flat surface or a curved surface (concave curved surface or convex curved surface) as long as it has a downward slope. It is preferable to make it face up. As a result, when the opening edge 22 of the floor sheet material 2 is placed in the recess D2, the end (tip) of the bottom wall surface 80 opposite to the leg 9 is appropriately elastically deformed upward, and the elastic force Since it comes into close contact with the surface of the opening edge 22 of the floor sheet material 2, the gap between the tip of the bottom wall surface 80 and the floor sheet material 2 can be closed well. Note that the bottom wall surface 80 does not necessarily have to be sloped.

Further, a convex portion 83 projecting downward is integrally formed at the tip of the bottom wall surface 80. The convex portion 83 is provided over the entire length of the main body portion 8 in the longitudinal direction. Due to the presence of this convex portion 83, the adhesion between the tip of the bottom wall surface 80 and the surface of the opening edge 22 of the floor sheet material 2 can be improved. Gaps can be better closed. Therefore, it is possible to reliably prevent water, urine, etc. from entering between the main body portion 8 and the floor sheet material 2. In addition, when a caulking agent is filled between the main body portion 8 and the opening edge 22 of the floor sheet material 2 in order to improve water-stopping properties and adhesion, the caulking agent is hidden and the aesthetic appearance after construction is improved. It also has effects.

The shape of the convex portion 83 is not particularly limited, and in this embodiment it is trapezoidal in cross-section with a flat top, but it may be triangular in cross-section with a pointed top or rounded in cross-section. It can have various shapes, such as a circular shape. In particular, when the top part is flat and has a trapezoidal cross-sectional shape, the contact area with the floor sheet material 2 is increased and water-stopping properties are improved. When filled with caulking agent, it is possible to prevent the caulking agent from leaking out, which is preferable. Note that the height T2 of the convex portion 83 is not particularly limited, but is preferably 0.2 mm or more and 1.0 mm or less, and more preferably 0.3 mm or more and 0.5 mm or less. Further, the height T3 of the tip of the bottom wall surface 80 from the floor (the height of the top of the protrusion 83 from the floor when the protrusion 83 is included) is not particularly limited. The height T3 is preferably -0.6 mm or more and -0.3 mm or less, more preferably -0.5 or more and -0.3 mm or less than the thickness of the floor sheet material 2, and within this range. , it can improve water-stopping properties and prevent caulking agent from leaking.

The width L2 of the bottom wall surface 80 is not particularly limited, but is preferably 3 mm or more and 10 mm or less, and more preferably 5 mm or more and 7 mm or less. If the lower limit value or more, even if the cutting precision of the opening edge part 22 of the floor sheet material 2 is poor, the opening edge part 22 of the floor sheet material 2 is prevented from protruding from the recess D2, while if the upper limit value or less, The toilet bowl surrounding member 7 does not become too large and is unobtrusive and has a good appearance.

The inner wall surface 81 of the main body portion 8 extends continuously upward from the inner surface 91 of the leg portion 9, and faces the toilet bowl wall surface 12A. The inner wall surface 81 can have a shape corresponding to the shape along the vertical direction near the lower end of the toilet wall surface 12A, which the main body 8 touches. Specifically, in the general toilet bowl 12, the toilet bowl wall surface 12A has a convex curved shape along the vertical direction, as shown in FIG. 9 (BB sectional view in FIG. 1(b)), which will be described later. There are many. Therefore, in this embodiment, in response to this, at least a portion of the inner wall surface 81 is a concave curved surface, and is curved in a concave shape. In this embodiment, the inner wall surface 81 is a concave curved surface composed of an arcuate surface with a constant radius of curvature, but two or more arcuate surfaces with the same or different radii of curvature are smoothly connected. It may be a concave curved surface having a configuration or a concave curved surface having a configuration in which the radius of curvature is gradually changed. It is preferable to form the inner wall surface 81 with a concave curved surface having a constant radius of curvature because the inner wall surface 81 can be aligned with the toilet bowl wall surface 12A and the adhesion can be improved. Further, the inner wall surface 81 does not necessarily have to be a concave curved surface, and may be a convex curved surface or a flat end surface depending on the shape of the toilet bowl wall surface 12A. Since the toilet bowl surrounding member 7 has flexibility, even if the toilet bowl wall surface 12A is flat, the inner wall surface 81 can follow the shape of the toilet bowl wall surface 12A and come into close contact with the toilet bowl wall surface 12A.

Moreover, the inner wall surface 81 can be made to incline with respect to the vertical direction V according to the degree of inclination I1 with respect to the vertical direction V near the lower end of the toilet wall surface 12A, which the main body 8 touches. Specifically, in a typical toilet bowl 12, the toilet bowl wall surface 12A is inclined inward toward the vertical direction V as it goes upward, as shown in FIG. Therefore, in this embodiment, in response to this, the inner wall surface 81 is inclined so as to open on the side opposite to the bottom wall surface 80 with respect to the vertical direction V, and as it goes upward, it is rearward (toilet bowl) from the vertical direction V. It is an inclined surface that extends rearward and diagonally upward, away from the wall surface 12A side. Note that the inner wall surface 81 does not necessarily have to be an inclined surface extending rearward and diagonally upward with respect to the vertical direction V, and depending on the shape of the toilet bowl wall surface 12A, the inner wall surface 81 may be inclined from the vertical direction V toward the front (floor sheet material 2 side) as it goes upward. ) may be an inclined surface extending obliquely upward and forward. Further, the inner wall surface 81 may be a vertical surface extending upward in the vertical direction V.

The outer wall surface 82 of the main body section 8 extends between the tip of the bottom wall surface 80 and the upper end of the inner wall surface 81, and in this embodiment, at least a portion thereof is a concave curved surface. It's curved. The main body portion 8 includes a wall thickness transition portion 8A in which the outer wall surface 82 includes a concave curved surface and the wall thickness becomes thinner toward the top. Note that the wall thickness of the wall thickness transition portion 8A becomes thinner toward the front.

Further, a part of the upper end side of the outer wall surface 82 is formed into a convex curved surface 82A in accordance with the inner wall surface 81, so that the main body section 8 has an upper thin section provided continuously with the thickness transition section 8A. Contains 8B. This upper thin wall portion 8B has a thickness (the length between the outer wall surface 82 and the inner wall surface 81) that is thinner than the wall thickness transition portion 8A, so it is easily bent, and is more easily bent in the X1 direction and the Y1 direction in FIG. . Therefore, even if the degree of inclination I1 of the toilet bowl wall surface 12A with respect to the vertical direction V is steep or gentle, the upper end of the inner wall surface 81 of the main body portion 8 can easily follow the degree of inclination I1. The toilet bowl wall surface 12A can be brought into contact with the toilet bowl wall surface 12A. As a result, the gap between the upper end of the inner wall surface 81 and the toilet wall surface 12A can be effectively closed, and water, urine, etc. can be reliably prevented from entering between the main body portion 8 and the toilet wall surface 12A. have

In this embodiment, the upper thin portion 8B is formed to have a constant thickness. The thickness of the upper thin portion 8B is not particularly limited, but is preferably, for example, 0.2 mm or more and 1.0 mm or less, and more preferably 0.4 mm or more and 0.7 mm or less. If it is above the lower limit, the durability of the upper thin wall portion 8B will be sufficient, while if it is below the upper limit, the upper thin wall portion 8B will be easy to bend. Note that the upper thin portion 8B may be formed in a tapered shape so that the thickness becomes gradually thinner toward the upper end.

In addition, a part of the outer wall surface 82 on the tip side is a flat surface 82D in accordance with the bottom wall surface 80, so that the main body portion 8 has a front thin wall portion provided continuously with the wall thickness transition portion 8A. It also contains 8C. This front thin section 8C has a thickness (the length between the outer wall surface 82 and the bottom wall surface 80) that is thinner than the thickness transition section 8A, so it is easily bent, and is more easily bent in the X2 direction and the Y2 direction in FIG. . Therefore, as described above, when the opening edge 22 of the floor sheet material 2 is placed in the recess D2, the tip of the bottom wall surface 80 of the main body section 8 is likely to be elastically deformed upward, and the elastic force causes the floor sheet material 2 to deform upwardly. It adheres well to the surface of the opening edge 22 of. Therefore, the gap between the tip of the bottom wall surface 80 and the floor sheet material 2 can be effectively closed.

In this embodiment, the front thin portion 8C is formed to have a constant thickness. The thickness of the front thin portion 8C is not particularly limited, but is preferably, for example, 0.2 mm or more and 1.0 mm or less, and more preferably 0.4 mm or more and 0.7 mm or less. If it is at least the lower limit, the front thin part 8C has sufficient durability, while if it is below the upper limit, the front thin part 8C becomes easy to bend. Note that the front thin portion 8C may be formed in a tapered shape so that the thickness becomes gradually thinner toward the tip.

In this embodiment, a part of the concave curved surface of the outer wall surface 82 is a concave curved surface composed of an arcuate surface with a constant radius of curvature, but two or more arcuate surfaces with the same or different radii of curvature It may be a concave curved surface with a structure in which the surface is smoothly continuous, or it may be a concave curved surface with a structure in which the radius of curvature is gradually changed. In addition, a part of the outer wall surface 82 is a concave curved surface to form a thickness transition part 8A of the main body part 8, but by making the part of the outer wall surface 82 a convex curved surface or a flat end surface, the thickness transition part 8A is formed. The thickness transition portion 8A may be formed, and the upper thin portion 8B and the front thin portion 8C may be continuously provided.

Next, the leg portion 9 protrudes long from the bottom wall surface 81 of the main body portion 8, and the outer surface 90 of the leg portion 9 faces the opening edge 22 of the floor sheet material 2 disposed in the lateral recess D2. are doing. In this embodiment, the leg portion 9 protrudes from the rear end portion of the bottom wall surface 80 (the end portion on the toilet wall surface 12A side), and the inner surface 91 on the side facing the toilet wall surface 12A is connected to the inner wall surface 81 of the main body portion 8. It is continuous and flush.

The inner surface 91 of the leg portion 9 can be inclined with respect to the vertical direction V according to the degree of inclination I2 with respect to the vertical direction V of the lower end of the toilet wall surface 12A against which the leg portion 9 comes into contact. In this embodiment, the inner surface 91 is inclined to open on the side opposite to the bottom wall surface 80 with respect to the vertical direction V, and moves away from the vertical direction V toward the rear (toilet wall surface 12A side) as it goes downward. It is an inclined surface extending diagonally downward to the rear. Thereby, as shown in FIG. 9, when the lower end of the toilet bowl wall surface 12A is inclined inward as it goes downward with respect to the vertical direction V, the inner surface 91 can be made to suitably follow the toilet bowl wall surface 12A. I can do it.

Although the inner surface 91 is a flat surface in this embodiment, it may be a curved surface (concave curved surface or convex curved surface). Further, depending on the shape of the toilet wall surface 12A, the inner surface 91 may be an inclined surface extending rearward and diagonally downward, away from the vertical direction V toward the rear (toward the toilet wall surface 12A side) as it goes downward. Moreover, the inner surface 91 may be a vertical surface extending downward in the vertical direction V.

On the other hand, the outer surface 90 of the leg portion 9 on the side facing the opening edge 22 of the floor sheet material 2 is formed in the vertical direction V.
is a vertical plane that extends downward.

The thickness of the leg portion 9 is not particularly limited, and is preferably 0.5 mm or more and 1.3 mm or less at the upper end, more preferably 0.7 or more and 1.1 mm or less, and preferably 0.7 mm or more at the lower end. It is 1.5 mm or less, more preferably 0.9 or more and 1.3 mm or less. As shown in FIG. 9, the toilet bowl wall surface 12A is often concave inward at the lower end, so by making the thickness of the leg portion 9 larger within the above range at the lower end than at the upper end, the thickness of the leg portion 9 can be increased. Adhesion to the toilet wall surface 12A can be improved. In addition, since the toilet bowl surrounding member 7 has flexibility, even if the toilet bowl wall surface 12A is flat, the leg portions 9 can follow the shape of the toilet bowl wall surface 12A and come into close contact with the toilet bowl wall surface 12A.

The height H2 of the toilet bowl surrounding member 7 having the above configuration is not particularly limited, but is preferably, for example, 7 mm or more and 20 mm or less, and more preferably 10 mm or more and 15 mm or less. When the lower limit value or more, the contact area between the toilet bowl surrounding member 7 and the toilet bowl wall surface 12A is sufficient, and the toilet bowl surrounding member 7 becomes difficult to peel off from the toilet bowl wall surface 12A, while when it is below the upper limit value, the appearance of the toilet bowl surrounding member 7 becomes poor. becomes good.

Further, the hardness of the toilet bowl surrounding member 7 is not particularly limited, but is preferably, for example, 20 or more and 60 or less in Shore D hardness, and more preferably 35 or more and 45 or less. When the lower limit value or more is higher than the upper limit, it becomes easier to construct the toilet bowl surrounding member 7 at high temperatures, while when it is lower than the upper limit value, it becomes easier to bend and arrange the toilet bowl surrounding member 7 along the circumferential direction of the toilet wall surface 12A. Shore D hardness can be measured according to JIS K7215 using a durometer type D Asker rubber hardness meter (manufactured by Kobunshi Keiki Co., Ltd.).

Next, a method of constructing a bathroom floor according to this embodiment will be explained.

First, if necessary, such as when the existing floor 13 of the bathroom has large unevenness or cracks, smoothing treatment is performed using a base repair material. When the existing floor 13 of the bathroom is made of fiber-reinforced plastic (FRP), for example, "Bathna Putty EPO" (manufactured by Tori Co., Ltd.) can be suitably used as the base repair material. When the existing floor 13 of the bathroom is made of tiles, for example, "Quick Leveler" (manufactured by Tori Co., Ltd.) can be suitably used as the base repair material.

Next, as shown in FIG. 7, double-sided tapes 3A to 3D are pasted at multiple locations on the floor 13 (double-sided tape pasting process). The double-sided tapes 3A to 3D do not need to be attached to the entire surface of the floor 13, but can be attached only to a portion of the floor surface.

Specifically, at least along the periphery of the floor 13, that is, along the length direction and from the boundary with the drain 15 on the floor 13, the bathroom wall 14, the bathtub wall 10A, and the drain 16. Double-sided tape 3A is pasted at predetermined intervals d. Thereby, the end portion 20 of the floor sheet material 2 can be properly adhered to the floor surface via the double-sided tape 3A. The distance d is, for example, 0 mm or more and 100 mm or less. Specifically, the distance d at the boundary between the drain groove 15 and the drain port 16 is 0 mm or more and 100 mm or less, preferably 0 mm or more and 10 mm or less. The distance d at the boundary between the bathroom wall surface 14 and the bathtub wall surface 10A is 3 mm or more and 20 mm or less, preferably 5 mm or more and 10 mm or less.

In this embodiment, the double-sided tape 3A along the periphery of the floor 13 continues around the periphery of the floor 13 without any gaps. In addition, in FIG. 7, the double-sided tape 3A extending in the vertical direction of the floor 13 and the double-sided tape 3A extending in the horizontal direction of the floor 13 are pasted consecutively without gaps, but one double-sided tape 3A extends in the horizontal direction of the floor 13. They may be attached continuously with tape. In addition, with the double-sided tape 3A extending in the vertical direction of the floor 13 and the double-sided tape 3A extending in the horizontal direction of the floor 13,
It may be pasted discontinuously (intermittently). However, it is preferable for the double-sided tape 3A along the periphery of the floor 13 to be continuous or continuous around the periphery of the floor 13 without gaps, in order to increase the water-stopping effect.

In the double-sided tape 3A attached along the periphery of the floor 13, the double-sided tape 3A along the drain groove 15 and the drain outlet 16 is attached to the drain groove 15 of the floor 13 in this embodiment, as shown in FIGS. 7 and 8. and the drain port 16 from the boundary B (shown in FIG. 8) without leaving a gap (the above-mentioned interval d is 0 mm). On the other hand, in this embodiment, as shown in FIGS. 7 and 17, the double-sided tape 3A along the bathroom wall surface 14 and the bathtub wall surface 10A is attached when there is no drain groove adjacent to the bathroom wall surface 14 and the bathtub wall surface 10A. , is pasted with a gap (the above-mentioned distance d is larger than 0 mm) from the boundary B (shown in FIG. 17) between the bathroom wall 14 and the bathtub wall 10A of the floor 13. As a result, as shown in FIG. 10, which will be described later, after the sheet end member 4 is installed on the double-sided tape 3A, a drainage portion 18 can be provided between the bathroom wall surface 14 and the bathtub wall surface 10A and the sheet end member 4. can. Therefore, the drainage function of the floor 13 is enhanced by the drainage portion 18, and the shape makes it easy to remove dust and dirt, thereby improving cleaning performance.

Further, regarding the floor 13 provided with the toilet bowl 12 shown in FIG. 7(b), double-sided tape 3B is attached so as to surround the toilet bowl 12. For example, double-sided tape 3B can be attached to one or both sides of the toilet bowl 12 in the width direction perpendicular to the longitudinal direction so as to extend along the longitudinal direction. Further, double-sided tape 3B can be attached to one or both sides of the toilet bowl 12 in the longitudinal direction so as to extend along the width direction. Thereby, the opening edge 22 of the floor sheet material 2 can be well adhered to the floor surface via the double-sided tape 3B. In this embodiment, the longitudinal direction of the toilet bowl 12 corresponds to the vertical direction of the floor 13, and the width direction corresponds to the horizontal direction of the floor 13. The double-sided tape 3B surrounding the toilet bowl 12 has a length of 0.5 times or more and 1.0 times or less of each of the vertical (longitudinal length t1) and horizontal (width direction length t2) dimensions of the toilet bowl 12. It is preferable to attach it to the floor so that it is flat.

Note that the double-sided tape 3B surrounding the toilet bowl 12 is preferably pasted on all four sides of the toilet bowl 12, as shown in FIG. 7(b), but does not necessarily need to be pasted on all four sides of the toilet bowl 12. However, it is preferable that double-sided tape 3B is attached to at least two sides of the toilet bowl 12 in the width direction. Moreover, it is preferable that double-sided tape 3B is attached to at least one side (preferably the front side of the toilet bowl 12 (lower side in FIG. 7(b))) on both sides of the toilet bowl 12 in the longitudinal direction.

The double-sided tape 3B surrounding the toilet bowl 12 is pasted at a distance S from the boundary with the toilet bowl 12 on the floor 13, as shown in FIGS. 7(b) and 9. The above-mentioned interval S is, for example, 0 mm or more and 20 mm or less. In addition, in the case where the toilet bowl surrounding member 7 is not installed around the toilet bowl 12 after the floor sheet material 2 shown in FIG. It is preferable that the distance R (shown in FIG. 12(c)) from the double-sided tape 3B is 3 mm or less. Note that FIG. 12(c) is an enlarged view of the area around the toilet bowl 12 in FIG. 12(b).

Regarding the floor 13 equipped with the toilet bowl 12 shown in FIG. 7(b), when the floor sheet material 2 shown in FIG. It is preferable to affix the double-sided tape 3C so as to overlap with the double-sided tape 3C. Thereby, the floor sheet material 2 can be well adhered to the floor surface without opening the notch 23 via the double-sided tape 3C, and the water-stopping effect can be enhanced by suppressing water intrusion from the notch 23. You can also do it. The double-sided tape 3C applied to the floor sheet material 2 at a position overlapping with the notch 23 only needs to cover at least a part of the notch 23, and does not necessarily need to cover all of the notch 23. Note that among the double-sided tapes 3B on both sides of the toilet bowl 12 in the longitudinal direction, if the double-sided tape 3B is not attached to the back side of the toilet bowl 12 (upper side in FIG. 7(b)), the cut in the floor sheet material 2 It is preferable that the double-sided tape 3C at the position overlapping with the notch 23 is pasted on the floor 13 so as to extend along the notch 23 to the toilet bowl 12 or to the vicinity of the toilet bowl 12. Thereby, even if the rigidity of the floor sheet material 2 is relatively low, the end portions of the notches 23 of the floor sheet material 2 can be suitably attached to the floor surface without being lifted up. Moreover, the double-sided tape 3C also has the effect of preventing liquids such as water and urine from entering through the cuts 23 and getting around to the back surface of the floor sheet material 2.

Further, on both the floors 13 shown in FIGS. 7(a) and 7(b), a plurality of double-sided tapes 3D are pasted at predetermined intervals within the periphery of the floor 13. The double-sided tape 3D attached within the periphery of the floor 13 is attached to the floor surface so as to extend in the vertical or horizontal direction of the floor 13, and is parallel or approximately parallel to each of the double-sided tapes 3A to 3C. The double-sided tape 3D to be pasted within the periphery of the floor 13 is such that the distance i between adjacent double-sided tapes in at least one of the vertical and horizontal directions of the floor 13 is equal to or less than a predetermined value for each double-sided tape 3A to 3D. It is attached to the floor. In other words, the double-sided tape 3D is pasted on the floor 13 in at least one of the vertical and horizontal directions with an interval i larger than a predetermined value, and each of the double-sided tapes 3A to 3D is attached at an interval i smaller than the predetermined value. Another double-sided tape is present, and the distance i between adjacent double-sided tapes is not greater than a predetermined value. In this embodiment, for the double-sided tapes 3A to 3D extending in the vertical direction of the floor 13, the distance i between the double-sided tapes adjacent in the horizontal direction of the floor 13 is equal to or less than a predetermined value, and the double-sided tape 3A extending in the horizontal direction of the floor 13 ~3D, the distance i between the vertically adjacent double-sided tapes on the floor 13 is less than or equal to a predetermined value. By setting the interval i to a predetermined value or less, even if the rigidity of the floor sheet material 2 is relatively low, the floor sheet material 2 can be suitably attached to the floor surface without being partially lifted. . Note that when the existing floor 13 of the bathroom is made of tiles or the like and joints are formed, the double-sided tape 3D may be applied so as to cover the joints, or may be applied so as to avoid the joints.

The distance i between the double-sided tapes 3A to 3D is not particularly limited, but the adhesion area of the floor sheet material 2 to the floor 13 is sufficient, and the floor sheet material 2 is difficult to peel off from the floor 13, so that it can be used for a long period of time. It is necessary to fix the floor sheet material 2 to the floor 13. On the other hand, by not making the contact area too large, it is easy to attach the double-sided tape 3 to the floor 13, and sufficient work space can be secured in the bathroom, resulting in good work efficiency during construction. becomes. Therefore, the distance i between the double-sided tapes 3A to 3D is, for example, preferably 70 cm or less, and more preferably 50 cm or less.

The width of the double-sided tapes 3A to 3D is not particularly limited, but the adhesive area of the floor sheet material 2 to the floor 13 is sufficient, the floor sheet material 2 is difficult to peel off from the floor 13, and the width of the double-sided tapes 3A to 3D is not particularly limited. It is necessary to fix the sheet material 2 to the floor 13. On the other hand, by not making the contact area too large, it is easy to attach the double-sided tape 3 to the floor 13, and sufficient work space can be secured in the bathroom, resulting in good work efficiency during construction. becomes. Therefore, the width of the double-sided tape 3 is, for example, preferably 25 mm or more and 80 mm or less, and more preferably 40 mm or more and 60 mm or less.

The thickness of the double-sided tapes 3A to 3D is not particularly limited, but is, for example, preferably 0.5 mm or less, more preferably 0.1 mm or more and 0.4 mm or less. By setting the value below the upper limit, the difference in level between the area where the double-sided tape 3 is present on the floor surface and the area where it is not present becomes difficult to be transmitted to the surface side of the floor sheet material 2, and the floor sheet material 2 feels uncomfortable to the touch. can be prevented from occurring. By making it equal to or more than the lower limit, the adhesion between the floor sheet material 2 and the floor 13 can be strengthened. In addition, it prevents unintentional cutting of the double-sided tape 3 during construction, improves work efficiency during construction, and makes it easy to peel off the double-sided tape 3 without cutting it midway when replacing the floor sheet material 2. Work efficiency during renovation will also improve.

The double-sided tapes 3A to 3D are not particularly limited as long as they are capable of adhering the base floor 13 and the floor sheet material 2, and conventionally known tapes can be used. It is preferable to use a material that is excellent in conformability to substrate irregularities, plasticizer resistance, creep property, and ease of peeling. For example, "NO. 5000ND (manufactured by Nitto Denko Corporation)" can be suitably used.

When the process of attaching the double-sided tape is completed, as shown in FIG. 10, a sheet end member 4 as the first sheet material is placed on the boundary between the drain 15 on the floor 13, the bathroom wall 14, and the bathtub wall 10A. are arranged along the length direction of the drain 15, the bathroom wall 14, and the bathtub wall 10A, and are pasted on the floor 13 with double-sided tape 3A (first sealing material installation step). In this embodiment, as the sheet end member 4, the one shown in FIG. 4(b) is used. As shown in FIGS. 11 and 17, the sheet end member 4 is installed with the main body 5 facing the boundary B side between the drain 15 of the floor 13, the bathroom wall 14, and the bathtub wall 10A. Note that the sheet end member 4 may be pasted on the floor 13 with the upper part 5A open, or the sheet end member 4 may be pasted on the floor 13 with the upper part 5A closed and engaged with the lower part 5B. After attaching, the upper part 2A may be opened upward.

When the step of installing the first sealing material is completed, next, as shown in FIG. 12, the floor sheet material 2 is laid on the floor 13 via double-sided tapes 3A to 3D (floor sheet material laying step).

Specifically, as shown in FIG. 13, first, the floor sheet material 2 is placed so that the upper part 5A rides on the sheet end member 4 in an open state, and is fixed on the floor 13. Next, as shown in FIG. 14, the floor sheet material 2 is cut along the wall 56 of the lower part 5B while applying a cutting tool such as a cutter C to the wall 56 of the lower part 5B, as shown in FIG. 15. The end portion 20 of the floor sheet material 2 is placed on the support portion 6B. Then, as shown in FIG. 16, by closing the upper part 5A of the sheet end member 4 and engaging the first engaging part 57 of the upper part 5A and the second engaging part (wall part 56) of the lower part 5B. The end portion 20 of the floor sheet material 2 is disposed in the recess D1 of the sheet end member 4 and is covered by the cover portion 6A. By performing the same process for the boundary B between the bathroom floor 13 and the bathtub wall surface 14 and the bathtub wall surface 10A, the floor sheet material 2 has its edge 20 aligned with the sheet end member 4, as shown in FIG. It is placed in the recess D1 of and covered by the cover part 6A.

Note that before closing the upper part 5A of the sheet end member 4 shown in FIG. The caulking agent may be applied so that the caulking agent is filled between the end portion 20 of the floor sheet material 2 and the cover portion 6A.

In addition, when the sheet end member 4 of the embodiment shown in FIG. can do. Thereafter, by inserting the end portion 20 of the floor sheet material 2 into the recess D1 from the side, the end portion 20 is placed in the recess D1 of the sheet end member 4 and covered by the cover portion 6A. Note that the floor sheet material 2 may be cut to desired dimensions in advance. Even in the case of using the sheet end member 4 of the embodiment shown in FIG. It may be inserted into the recess D1 of the sheet end member 4 from the side and covered with the cover portion 6A.

Regarding the floor 13 of the bathroom shown in FIG. 1(a), the floor sheet material 2 is thereby laid on the floor 13.

On the other hand, regarding the floor 13 provided with the toilet bowl 12 shown in FIG. 1(b), the toilet bowl 12 is positioned within the opening 21 by opening the notch 23 in the floor sheet material 2, and then the notch 23 is closed. Thereby, as shown in FIG. 18, the floor sheet material 2 is laid on the floor 13 so that the opening edge 22 of the floor sheet material 2 is positioned at intervals around the toilet wall surface 12A. In addition, after laying the floor sheet material 2, the cut 23 portion of the floor sheet material 2 may be subjected to water stop treatment. For example, water stop treatment can be performed using seam liquid, seam treatment agent, caulking agent, welding rod, etc. As the seam liquid, specifically, "Toli Seam Liquid", "Toli Super Seam Liquid", and "Toli Seam Sealer" manufactured by Tori Co., Ltd. can be suitably used, and as the seam treatment agent, specifically, “Toli Joint Shield” manufactured by Toli Co., Ltd. can be suitably used.

When the process of laying the floor sheet material is completed, as for the floor 13 equipped with the toilet bowl 12 shown in FIG. 1(b), next, as shown in FIGS. 12A (second sealing material installation step). Specifically, while bending the toilet surrounding member 7 so as to follow the toilet wall surface 12A all around, the inner wall surface 81 of the main body portion 8 is turned toward the toilet wall surface 12A side, and the leg portion 9 is bent at the opening edge 22 of the floor sheet material 2. and the toilet bowl wall 12A. As a result, the opening edge 22 of the floor sheet material 2 is placed in the recess D2 of the toilet surrounding member 7 and is covered by the bottom wall surface 80. The toilet bowl surrounding member 7 may be cut in advance according to the circumferential dimension of the toilet bowl wall surface 12A, or may be cut at the construction site.

Although not shown in FIG. 20, the space between the opening edge 22 of the floor sheet material 2 and the main body portion 8 is filled with caulking agent, and the space between the opening edge 22 of the floor sheet material 2 and the leg portion 9 is filled with caulking agent. A caulking agent may be applied so that the caulking agent is filled between.

The toilet bowl surrounding member 7 is attached to the toilet bowl wall surface 12A via the adhesive layer 17, which is formed by applying or pasting an adhesive or double-sided tape on the inner wall surface 81 or the inner surface surface 91. In particular, it is preferable to apply double-sided tape to the inner wall surface 81 or inner surface 91 in advance, and the installation can be easily and quickly performed by simply peeling off the release sheet at the site. The double-sided tape here may be the same as the double-sided tapes 3A to 3D used to attach the floor sheet material 2 to the floor 13, but since the adhesive area is small, a double-sided tape with stronger adhesive strength is selected. More preferably, examples include "H9004" and "H9008" manufactured by Nitto Denko Corporation. The vertical width of the double-sided tape and adhesive is not particularly limited, but it is necessary to ensure that the adhesive area between the toilet bowl surrounding member 2 and the toilet wall surface 12A is sufficient to prevent the toilet bowl surrounding member 7 from peeling off from the toilet wall surface 12A. On the other hand, by not making the contact area too large, it is possible to make it easier to apply or stick the adhesive or double-sided tape. For example, when using a double-sided tape, its width is preferably 4 mm or more and 10 mm or less, and more preferably 8 mm or more and 10 mm or less. Further, the thickness of the adhesive or double-sided tape is not particularly limited, but is preferably 0.2 mm or more and 1.0 mm or less, and more preferably 0.4 mm or more and 0.8 mm or less.

After the installation process of the second sealing material is completed, the floor sheet material 2 laid on the floor 13 is finally pressed using a pressing roller or an ironing rod (floor sheet material pressing step). Thereby, by removing air between the floor sheet material 2 and the floor surface, the adhesion between the floor sheet material 2 and the floor surface is strengthened. This pressing does not necessarily have to be done at the end, but can be done at any timing after the floor sheet material 2 is laid down on the floor 13.

By the construction method described above, a bathroom floor structure is completed in which the floor sheet material 2 is constructed on the entire surface of the bathroom floor 13 using double-sided tapes 3A to 3D.

In addition, in this embodiment, the construction method of the bathroom floor is explained when there is no drainage ditch adjacent to the bathroom wall surface 14 of the bathroom. Although omitted, similar to the bathtub wall surface 17 shown in FIG. 16, after the sheet end member 4 is installed at the boundary between the bathroom wall surface 14 on the floor 13 and the adjacent drain, the floor sheet material 2 is constructed.

Further, in this embodiment, the sheet end member 4 is formed between the bathroom wall surface 14 or the bathtub wall surface 10A and the end portion 20 of the floor sheet material 2 by the first sealing material installation step and the second sealing material installation step. By providing the toilet bowl surrounding member 7 between the toilet bowl wall surface 12A and the opening edge 22 of the floor sheet material 2, water intrusion from the edge 20 of the floor sheet material 2 and the opening edge 22 is prevented. are doing. However, instead of the seat end member 4 and the toilet bowl surrounding member 7, a sealant is used between the bathroom wall surface 14 or the bathtub wall surface 10A and the end portion 20 of the floor sheet material 2, and between the toilet bowl wall surface 12A and the floor sheet material 2. The space between the opening edge 22 and the opening edge 22 may be filled to prevent water from entering. In this case, after the floor sheet material pressing process, the sealant application work is performed through the first sealing material installation process and the second sealing material installation process.

According to the bathroom floor construction method and bathroom floor structure 1 of the present embodiment described above, double-sided tapes 3A to 3D can be used without applying adhesive to the entire surface of the existing floor 13 of the bathroom as conventionally thought. The floor sheet material 2 is constructed on the floor 13 by pasting it at the required location. Therefore, the floor sheet material 2 can be installed without waiting time (open time) when using adhesive, and the work of applying double-sided tapes 3A to 3D requires a long time unlike the work of applying adhesive. Not needed. Therefore, the construction work of the floor sheet material 2 can be performed efficiently.

In addition, by applying the floor sheet material 2 on the floor 13 using double-sided tapes 3A to 3D, when the floor sheet material 2 is to be replaced during the next renovation, etc., the floor sheet material 2 can be placed on the floor surface. Easy to peel off and replace. Therefore, it is not difficult to peel off the floor sheet material 2 from the floor surface and the double-sided tapes 3A to 3D are difficult to peel off from the floor surface, which is the case when only adhesive is used, and the work of peeling the floor sheet material 2 from the floor surface is simplified. Also, the labor and time required to peel off the hardened adhesive from the floor surface are eliminated. Therefore, workability during renovation can be improved. Furthermore, since the existing floor 13 of the bathroom is preserved, there is no need to smooth the floor surface by scraping it off or filling it with leveling material.

Further, by applying the floor sheet material 2 on the floor 13 using the double-sided tapes 3A to 3D, the curing and drying time of the adhesive becomes unnecessary compared to the case where an adhesive is used. Therefore, after the installation of the floor sheet material 2 is completed, the bathroom can be used in a short time.

In addition, if the existing floor 13 of the bathroom is made of tiles or the like and has deep joints or steps at the joints, if the existing floor 13 of the bathroom is made of fiber reinforced plastic (FRP) etc. When there are relatively large irregularities on the floor surface, such as when deep drainage ditches or steps are formed, or when cracks or depressions have occurred on the floor surface for some reason, the floor sheet material 2 can be used as is. When pasted with adhesive, such unevenness may appear on the floor sheet material 2. Therefore, when performing construction using an adhesive on such an uneven floor surface, it is necessary to repair the underlying floor 13 to make it smooth before applying the adhesive. In order to repair the floor 13 to make it smooth, a considerable amount of manpower and time is required, and the installer is required to have a high level of skill, which results in cost and effort. On the other hand, by applying the floor sheet material 2 on the floor 13 using double-sided tapes 3A to 3D, it is possible to suppress the appearance of the joints on the floor sheet material 2. This is because the adhesive enters the dents in the joints of the existing floor 13 and strongly adheres to the floor sheet material 2, pulling the floor sheet material 2 strongly downward, but double-sided tape does not seal the joints. This is because the adhesion to the floor sheet material 2 is weak at the concave portion of the joint, and the force that pulls the floor sheet material 2 downward is weak. Therefore, since there is no need to repair the underlying floor 13 to make it smooth before construction, it is possible to significantly reduce manpower and time and shorten the construction period. Furthermore, since high skill is not required of the constructor, a wider range of constructors can carry out the construction.

In addition, in bathrooms where water is expected to come into contact with water, there was a concern that the adhesive strength of double-sided tape would decrease due to contact with water, so the use of double-sided tape in the construction of floor sheet material 2 had not been considered at all until now. Ta. On the other hand, as a result of studies conducted by the present inventor, the adhesive strength of the double-sided tape is not significantly reduced due to contact with water that enters from the edge 20 of the floor sheet material 2, and the double-sided tape 3A is attached at least to the periphery of the floor 13. It has been found that a certain level of water-stopping effect can be obtained by attaching the end portion 20 of the floor sheet material 2 to the floor surface. Therefore, even when the floor sheet material 2 is installed on the floor 13 using the double-sided tapes 3A to 3D, the floor sheet material 2 can be properly fixed to the floor 13.

In addition, as in the present embodiment, a first sealing material (for example, sheet end member 4) is provided between the bathroom wall surface 14 or the bathtub wall surface 10A and the end portion 20 of the floor sheet material 2, and the toilet wall surface 12A and By providing a second sealing material (for example, the toilet bowl surrounding member 7) between the opening edge 22 of the floor sheet material 2, water intrusion from the edge 20 of the floor sheet material 2 and the opening edge 22 is reliably prevented. It can be prevented. Therefore, since the double-sided tapes 3A to 3D can be prevented from coming into contact with water, a stable water-stopping effect can be maintained for a longer period of time, and the floor sheet material 2 can be more firmly fixed to the floor 13. can do.

Furthermore, according to the bathroom floor construction method and bathroom floor structure 1 of the present embodiment, the floor sheet material 2 is attached to the floor using the sheet end member 4 and the toilet bowl surrounding member 7 as the first sealing material and the second sealing material. 13, the end 20 of the floor sheet material 2 and the opening edge 22 are hidden by the sheet end member 4 and the toilet bowl surrounding member 7. Therefore, even if there are variations in the cutting accuracy of the edge 20 of the floor sheet material 2 or the opening edge 22 due to the skill of the installer, the bathroom floor can be uniformly finished to a good quality regardless of whether the cutting accuracy is good or bad. .

Although one embodiment of the present invention has been described above, the above embodiment is an illustration in all respects and is not restrictive, so the present invention is not limited to the above embodiment, and the present invention Various changes are possible without departing from the spirit of the invention.

For example, in the seat end member 4 of the above embodiment, the wall portion 56 of the lower portion 5B has an L-shape in cross section, so that it can be engaged with and disengaged from the first engaging portion 57 of the upper portion 5A, which has an L-shape in cross section. It also serves as a second engaging portion. However, as shown in FIG. 21, a groove 58 extending in the length direction of the main body part 5 is provided as a second engaging part at a position adjacent to the wall part 56 of the lower part 5B, and the upper part 5A has a groove 58 in the groove 58. By fitting the first engaging portion 57, they may be removably engaged with each other. In addition, also in the sheet end member 4 of FIG. 21, the cavity O and the cavity 55 may be provided in the main body part 5, and the soft part 54 may be provided in the upper part 5A, similarly to the said embodiment.

Further, in the sheet end member 4 of the above embodiment, the main body portion 5 has an inclined surface 50B (slope portion 53 having a triangular shape in cross section) on the upper surface 50, and the inclined surface 50B (slope portion 53) is connected to the cover portion. The main body part 5 is formed so that the inclined surface 50B (slope part 53) goes up towards the opposite side from the cover part 6A (down towards the cover part 6A side). may have been done. Note that the main body portion 5 does not necessarily have the inclined surface 50B (slope portion 53) on the upper surface 50, and may be formed in a rectangular cross-sectional shape with the upper surface 50 being a flat surface without the slope portion 53.

Further, although the sheet end member 4 of the above embodiment includes the support portion 6B, it is not necessarily necessary to include the support portion 6B.

Further, in the toilet bowl surrounding member 7 of the above embodiment, the protrusion 83 is provided at the tip of the bottom wall surface 80 of the main body portion 8, but the protrusion 83 does not necessarily need to be provided.

Further, in the toilet bowl surrounding member 7 of the above embodiment, the main body portion 8 includes the upper thin wall portion 8B and the front thin wall portion 8C, but it is not necessarily necessary to include the upper thin wall portion 8B and the front thin wall portion 8C. For example, as shown in FIG. As shown in FIG. 2, the main body portion 8 may include only the thickness transition portion 8A. In addition, in FIG. 22, the outer wall surface 82 of the main body portion 8 is a convex curved surface, but it may be a concave curved surface or a flat end surface.

Furthermore, in the above embodiment, the double-sided tape 3D within the periphery of the floor 13 is attached to the floor surface so as to extend in the vertical or horizontal direction of the floor 13; It may be attached to the floor surface so as to extend diagonally.

Further, in the above embodiment, no adhesive is used, but in addition to the double-sided tapes 3A to 3D, adhesive is additionally applied to the gaps between the double-sided tapes 3 on the floor 13, and the adhesive is applied to the floor 13. The sheet material 2 may be laid down, and a bathroom floor construction method and bathroom floor structure using an adhesive are also within the scope of the present invention.

2 Floor sheet material 3A to 3D Double-sided tape 4 Sheet end member 7 Toilet surrounding member 10 Bathtub 10A Bathtub wall 12 Toilet 12A Toilet wall 13 Floor 14 Bathroom wall 15 Drain channel 20 End of floor sheet material 21 Opening of floor sheet material 22 Opening edge of floor sheet material 23 Notch in floor sheet material

Claims (6)

A bathroom floor construction method for laying a new floor sheet material on a bathroom floor for the purpose of bathroom renovation, the method comprising:
an attaching step of attaching double-sided tape to multiple locations on a portion of the bathroom floor instead of the entire surface;
a laying step of laying a new floor sheet material on the floor of the bathroom via the double-sided tape affixed to a portion of the floor of the bathroom;
have at least
In the pasting step, the double-sided tape is pasted along the periphery of the bathroom floor,
In the laying step, the new floor sheet material is laid on the bathroom floor inside the boundary with the bathroom wall surface, with the end surface of the new floor sheet material facing the bathroom wall surface,
A method of constructing a bathroom floor , in which a sealing material or a sealing agent is provided between an end of the new floor sheet material and a bathroom wall surface . The bathroom floor construction method according to claim 1, wherein the bathroom floor is a floor of a unit bath. The bathroom floor construction method according to claim 1 or 2, wherein the double-sided tape is pasted within the periphery of the bathroom floor. 4. The bathroom floor construction method according to claim 3, wherein the double-sided tape is pasted on the bathroom floor with a gap from the boundary with the bathroom wall surface. A first sealing material interposed between at least one of the bathroom wall, the bathtub wall, and the drain and the end of the new floor sheet material, and/or the toilet wall and the opening edge of the new floor sheet material. The method for constructing a bathroom floor according to any one of claims 1 to 4, further comprising the step of installing a second sealant interposed between the two on the bathroom floor. bathroom floor and
double-sided tape affixed to multiple locations on a portion of the bathroom floor instead of the entire surface;
a new floor sheet material laid on the floor of the bathroom via the double-sided tape affixed to a part of the floor of the bathroom for the purpose of remodeling the bathroom;
The double-sided tape is pasted along the periphery of the bathroom floor,
The new floor sheet material is laid on the bathroom floor inside the boundary with the bathroom wall surface, with the end face of the new floor sheet material facing the bathroom wall surface,
A bathroom floor structure in which a sealing material or a sealant is provided between an end of the new floor sheet material and a bathroom wall surface .