Installation method for drainage channel components, floor structure, and resin flooring material.

Abstract

To provide a drainage ditch surrounding member improved in the flow of drainage on the drainage ditch surrounding member after construction.SOLUTION: A drainage ditch surrounding member 10 has a first belt-like part 1, a second belt-like part 2, and a coupling part 3 for coupling the side end edge of the first belt-like part 1 with the side end edge of the second belt-like part 2, and the thickness of the first belt-like part 1 increases gradually or stepwise from the coupling part side end to the tip. Since the height of the first belt-like part 1 of the drainage ditch surrounding member 10 decreases gradually or stepwise from a resin floor material side toward the drainage ditch after the construction of the drainage ditch surrounding member 10, a drain flowing from the resin floor material 40 side flows easily to a drainage ditch 30, and it is suppressed from remaining on the drainage ditch surrounding member 10.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a member around a drainage ditch used when laying a resin floor material near the drainage ditch.

Background Art

[0002] When laying a resin floor material on a floor portion provided with a drainage ditch, it has been proposed to use a member around the drainage ditch to fix the resin floor material around the drainage ditch. For example, Patent Document 1 describes using a synthetic resin L-shaped angle as a member around the drainage ditch for a conventional construction method (see Patent Document 1 (paragraph 0004, FIG. 9)).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally used members around drainage ditches have only considered fixing the resin floor material, and the ease of drainage flow on these members around the drainage ditch has not been studied. Such a member around the drainage ditch (L-shaped angle) has each strip-shaped portion constituting the member formed with a uniform thickness. Therefore, after construction, there has been a problem that the upper surface of the member around the drainage ditch becomes horizontal and drainage tends to remain on the member around the drainage ditch.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide a member around a drainage ditch with improved drainage flow on the member around the drainage ditch after construction.

Means for Solving the Problems

[0006] The drainage channel surround member of the present invention, which has been able to solve the above problems, has a first strip-shaped portion, a second strip-shaped portion, and a connecting portion that connects the side edge of the first strip-shaped portion and the side edge of the second strip-shaped portion, characterized in that the thickness of the first strip-shaped portion increases gradually or in steps from the side edge of the connecting portion toward the tip.

[0007] The drainage channel surround member of the present invention is installed such that a second strip-shaped portion is inserted into a gap formed near the drainage channel, and a first strip-shaped portion is placed on the upper surface of the floor. The first strip-shaped portion is installed on the opposite side of the gap from the drainage channel, and the leading edge of this first strip-shaped portion is joined to the edge of the resin flooring material.

[0008] Furthermore, in the drainage channel surround member of the present invention, the thickness of the first strip-shaped portion gradually or stepwise increases from the joint side end toward the tip. Therefore, after installation, the height of the first strip-shaped portion of the drainage channel surround member gradually or stepwise decreases from the resin floor material side toward the drainage channel. Because a slope is created in the height of the first strip-shaped portion after installation, wastewater flowing from the resin floor material side flows more easily into the drainage channel, and its residue on the drainage channel surround member is suppressed. [Effects of the Invention]

[0009] By using the drainage channel surround member of the present invention, the flow of drainage on the drainage channel surround member is improved after construction, and residue on the drainage channel surround member is suppressed. [Brief explanation of the drawing]

[0010] [Figure 1] This is a side view showing an example of a drainage channel surround member of the present invention. [Figure 2] Figure 1 is a perspective view of the drainage channel surrounding components. [Figure 3] This is a side view showing another example of a drainage channel surround member of the present invention. [Figure 4] Figure 3 is a perspective view of the drainage channel surrounding components. [Figure 5] This is a side view showing another example of a drainage channel surround member of the present invention. [Figure 6]It is a perspective view of the member around the drain of FIG. 5. [Figure 7] It is a schematic view showing an example of a floor structure using the member around the drain of the present invention. [Figure 8] It is a schematic view showing an example of a floor structure using the member around the drain of the reference example.

Mode for Carrying Out the Invention

[0011] [Member around the drain] Hereinafter, an example of the member around the drain of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the following embodiments.

[0012] (First Embodiment) FIG. 1 is a side view of the first embodiment of the member 10 around the drain. FIG. 2 is a perspective view of the member 10 around the drain of FIG. 1. The member 10 around the drain is used around the drain indoors, semi-outdoors, and outdoors. Examples of places where the member 10 around the drain is used include indoors such as a feeding room, a bathroom, an indoor pool, a factory, etc.; semi-outdoors such as a balcony and an outer corridor of an apartment; and outdoors such as an outdoor pool. The member 10 around the drain of the present invention has a first strip portion 1, a second strip portion 2, and a connecting portion 3 that connects the side edge of the first strip portion 1 and the side edge of the second strip portion 2.

[0013] (First strip portion) The first strip portion 1 is a flat plate member having a rectangular shape in plan view. The thickness of the first strip portion 1 gradually or stepwise increases from the side edge on the connecting portion side toward the tip. Specifically, the thickness gradually or stepwise increases from the side edge connected to the connecting portion 3 toward the other side edge. By being configured in this way, when the first strip portion 1 is placed on the upper surface of the floor portion, the height of the first strip portion 1 gradually or stepwise decreases from the resin floor material side toward the drain. Since the height of the first strip portion 1 can be inclined in this way, the drainage flowing from the resin floor material side easily flows into the drain, and it is suppressed from remaining on the member 10 around the drain.

[0014] The term "increasing gradually" refers to the thickness increasing continuously. When the thickness of the first strip portion 1 is increasing gradually, the thickness T at any position n and the thickness T at a position 10 mm moved from this point toward the tip side n+10 The difference between them (T n+10 -T n ) is more than 0 mm, preferably 0.1 mm or more, preferably 0.8 mm or less, more preferably 0.5 mm or less, and even more preferably 0.3 mm or less.

[0015] The term "increasing stepwise" refers to the thickness increasing intermittently. When the thickness of the first strip portion 1 is increasing stepwise, the number of steps is preferably 2 or more and 5 or less. Also, the difference in thickness between adjacent steps may be adjusted appropriately according to the number of steps, and is preferably more than 0 mm and 0.4 mm or less.

[0016] The thickness of the first strip portion 1 preferably increases gradually, and more preferably the change in thickness is linear. That is, in the cross-sectional shape of the first strip portion 1, it is more preferable that the surface slopes linearly from the end on the joint side toward the tip. Note that for the first strip portion 1, the side where the second strip portion 2 is arranged is the back surface, and the side where the second strip portion 2 is not arranged is the front surface.

[0017] The difference (T13 - T11) between the thickness T11 at the end on the joint side of the first strip portion 1 and the thickness T13 at the tip is preferably 0.2 mm or more, more preferably 0.3 mm or more, preferably 1.0 mm or less, and more preferably 0.6 mm or less.

[0018] The width (length from the end on the joint side to the tip) W1 of the first strip portion 1 is preferably 10 mm or more, more preferably 15 mm or more, preferably 30 mm or less, and more preferably 25 mm or less.

[0019] It is preferable that the ratio ((T13 - T11) / W1) of the difference (T13 - T11) to the length W1 of the first strip portion 1 is 0.1 or more, more preferably 0.2 or more. If the ratio ((T13 - T11) / W1) is 0.1 or more, the drainage property of the member around the drain groove is improved, and it is more suppressed that drainage remains on the member 10 around the drain groove. The upper limit of the ratio ((T13 - T11) / W1) is not particularly limited, but usually 0.4 or less is preferable, and more preferably 0.3 or less.

[0020] The thickness T13 of the tip of the first strip portion 1 may be appropriately adjusted according to the thickness of the resin floor material. The thickness T13 of the tip of the first strip portion 1 is preferably 1.0 mm or more, more preferably 1.5 mm or more, and preferably 6.0 mm or less, more preferably 4.0 mm or less.

[0021] The thickness T11 of the joint-side end of the first strip portion 1 is not particularly limited, as long as the mechanical strength of the portion joined to the joint can be maintained. The thickness T11 of the joint-side end of the first strip portion 1 is preferably 0.9 mm or more, more preferably 1.4 mm or more, and preferably 5.9 mm or less, more preferably 3.9 mm or less.

[0022] It is preferable that the thickness T11 of the joint-side end of the first strip portion 1, the thickness T13 of the tip, and the thickness T12 of the central point between the joint-side end and the tip of the first strip portion 1 satisfy the relationship T11 < T12 < T13.

[0023] It is preferable that the first strip portion 1 is provided with grooves 1a on the back surface. By providing the grooves 1a on the back surface, the contact area with the adhesive is increased, and it can be firmly fixed to the floor portion. Three grooves 1a are formed so as to be parallel to the longitudinal direction of the first strip portion 1, and are provided over the entire length in the longitudinal direction of the first strip portion 1. The cross-sectional shape of the groove 1a is rectangular.

[0024] The shape and number of grooves 1a can be adjusted as appropriate. When multiple grooves 1a are formed, the distance between adjacent grooves 1a is, for example, 1.0 mm to 5.0 mm. The direction of the grooves 1a is not particularly limited, but it is preferable that they are formed parallel to the longitudinal direction of the first strip-shaped portion 1. The length of the grooves 1a is not particularly limited, but it is preferable that they are provided along the entire length of the first strip-shaped portion 1 in the longitudinal direction.

[0025] The depth of the groove 1a is preferably 10% to 30% when the thickness T11 at the joint side end of the first strip-shaped portion 1 is taken as 100%. The width of the groove 1a is not particularly limited, but is preferably 0.5 mm to 2.0 mm. The width of the groove 1a may be constant in the depth direction or may be varied. For example, if the cross-sectional shape of the groove 1a is formed so that the width increases as it gets deeper, an anchoring effect will be generated after the adhesive hardens, allowing it to be fixed to the floor even more firmly. This prevents the first strip-shaped portion 1 from lifting off the floor after construction and allows for smooth drainage over a long period of time. The cross-sectional shape of the groove is not particularly limited and can be rectangular, trapezoidal, V-shaped, U-shaped, etc.

[0026] If a groove 1a is provided on the back surface of the first strip-shaped portion 1, the thickness of the first strip-shaped portion 1 at the location where the groove 1a exists is determined by drawing a baseline based on the portion where the groove 1a is not provided, and then calculating the thickness from this baseline and the surface. Although Figure 1 shows an embodiment in which a groove 1a is provided on the back surface of the first strip-shaped portion 1, the groove 1a does not necessarily have to be formed.

[0027] (Second band-shaped area) The second strip-shaped portion 2 is a flat plate member with a rectangular shape in plan view. In the drainage channel surrounding member 10 of Figure 1, the thickness of the second strip-shaped portion 2 is uniform. That is, in the drainage channel surrounding member 10 of Figure 1, the thickness T21 at the joint side end of the second strip-shaped portion 2, the thickness T23 at the tip, and the thickness T22 at the midpoint between the joint side end and the tip of the second strip-shaped portion are the same or approximately the same.

[0028] The thickness T23 at the tip of the second strip-shaped portion 2 is not particularly limited, but is preferably 1.0 mm or more, more preferably 1.5 mm or more, preferably 6.0 mm or less, and more preferably 4.0 mm or less. If the thickness T23 is 1.0 mm or more, the mechanical strength is high, and the second strip-shaped portion 2 is less likely to break or crack when inserted into the gap near the drainage ditch. If it is 6.0 mm or less, it is easier to insert into the gap near the drainage ditch.

[0029] In Figure 1, the thickness of the second strip-shaped portion 2 is uniform, but the thickness of the second strip-shaped portion 2 may be varied. For example, similar to the first strip-shaped portion 1, the thickness of the second strip-shaped portion 2 may be gradually or stepwise increased from the joint side end toward the tip.

[0030] Furthermore, in the drainage channel surround member 10 shown in Figure 1, the thickness T23 at the tip of the second strip-shaped portion 2 is different from the thickness T13 at the tip of the first strip-shaped portion 1. If the thickness T23 at the tip of the second strip-shaped portion 2 is different from the thickness T13 at the tip of the first strip-shaped portion 1, then one type of drainage channel surround member can be used to accommodate resin flooring materials of different thicknesses.

[0031] In this case, the thickness T13 at the tip of the first strip-shaped portion 1 is preferably 2.0 mm or more, more preferably 2.5 mm or more, preferably 6.0 mm or less, and more preferably 3.5 mm or less. Also in this case, the thickness T23 at the tip of the second strip-shaped portion is preferably 1.0 mm or more, more preferably 1.5 mm or more, preferably 4.0 mm or less, and more preferably 2.5 mm or less.

[0032] The thickness T23 at the tip of the second strip-shaped portion 2 may be the same as the thickness T13 at the tip of the first strip-shaped portion 1.

[0033] The width W2 of the second strip-shaped portion 2 (length from the end of the joint to the tip) is preferably 10 mm or more, more preferably 15 mm or more, preferably 30 mm or less, and more preferably 25 mm or less.

[0034] Preferably, the second strip-shaped portion 2 has grooves 2a on its back surface. By providing grooves 2a on the back surface, an anchoring effect is generated when the adhesive hardens after insertion into the void, further preventing it from coming out of the void. This prevents the second strip-shaped portion 2 from floating up from the void after construction, and allows for smooth drainage over a long period of time. Two grooves 2a are formed parallel to the longitudinal direction of the second strip-shaped portion 2 and are provided along the entire length of the second strip-shaped portion 2 in the longitudinal direction. The cross-sectional shape of the grooves 2a is rectangular.

[0035] Furthermore, if grooves 1a and 2a are provided on the back surfaces of the first strip-shaped portion 1 and the second strip-shaped portion 2, it is preferable that the shape and / or number of grooves provided in each are different. If the shape and / or number of grooves are different, the first strip-shaped portion 1 and the second strip-shaped portion 2 can be distinguished at a glance, further improving workability. For example, if the thickness T13 of the tip of the first strip-shaped portion 1 is 3.0 mm and the thickness T23 of the tip of the second strip-shaped portion 2 is 2.0 mm, by providing three grooves on the back surface of the first strip-shaped portion with a thicker tip and two grooves on the back surface of the second strip-shaped portion with a thinner tip, it becomes intuitively clear during construction that the strip-shaped portion with more grooves is the first strip-shaped portion, thus eliminating the need for verification work and reducing construction errors.

[0036] The shape and number of grooves 2a can be adjusted as appropriate. When multiple grooves 2a are formed, the distance between adjacent grooves 2a is, for example, 1.0 mm to 5.0 mm. The direction of the grooves 2a is not particularly limited, but it is preferable that they are formed parallel to the longitudinal direction of the second strip-shaped portion 2. The length of the grooves 2a is not particularly limited, but it is preferable that they are provided along the entire length of the second strip-shaped portion 2 in the longitudinal direction.

[0037] The depth of the groove 2a is preferably 10% to 30% when the thickness T21 at the joint side end of the second strip-shaped portion 2 is taken as 100%. The width of the groove 2a is not particularly limited, but is preferably 0.5 mm to 2.0 mm. The width of the groove 2a may be constant in the depth direction or may be varied. For example, the cross-sectional shape of the groove 2a may be formed such that the width increases as it gets deeper. The cross-sectional shape of the groove is not particularly limited and can be rectangular, trapezoidal, V-shaped, U-shaped, etc.

[0038] If a groove 2a is provided on the back surface of the second strip-shaped portion 2, the thickness of the second strip-shaped portion 2 at the location where the groove 2a exists is determined by drawing a baseline based on the portion where the groove 2a is not provided, and then calculating the thickness from this baseline and the surface. Note that Figure 1 shows an embodiment in which a groove 2a is provided on the back surface of the second strip-shaped portion 2, but the groove 2a may not be formed.

[0039] (Drainage channel surrounding components) The drainage channel surround member 10 has a first strip-shaped portion 1, a second strip-shaped portion 2, and a connecting portion 3 that connects the side edge of the first strip-shaped portion 1 and the side edge of the second strip-shaped portion 2. The drainage channel surround member 10 may be formed by separately molding the first strip-shaped portion 1 and the second strip-shaped portion 2 and then joining them via the connecting portion 3, but it is preferable that the first strip-shaped portion 1, the second strip-shaped portion 2, and the connecting portion 3 are integrally molded. Examples of manufacturing methods include extrusion molding.

[0040] In the cross-section of the drainage channel surrounding member 10, the angle θ between the back surface of the first strip-shaped portion 1 and the back surface of the second strip-shaped portion 2 is preferably 80° or more, more preferably 85° or more, preferably 100° or less, more preferably 95° or less, and even more preferably 90° or less. If the angle θ is within the above range, it becomes easier to make the first strip-shaped portion 1 adhere closely to the upper surface of the floor when the drainage channel surrounding member 10 is installed.

[0041] The shape of the connecting portion 3 is not particularly limited, as long as it can firmly connect the side edge of the first strip-shaped portion 1 and the side edge of the second strip-shaped portion 2. The connecting portion 3 is formed such that the height of the connecting portion when the drainage channel surrounding member 10 is installed is lower than the height of the side edge of the connecting portion of the first strip-shaped portion 1 that is placed on the floor surface. The drainage channel surrounding member 10 has the same longitudinal length for the first strip-shaped portion 1, the second strip-shaped portion 2, and the connecting portion 3.

[0042] The durometer hardness of the drainage channel surrounding member 10 is preferably 60 or higher, more preferably 70 or higher, preferably 90 or lower, and more preferably 80 or lower, for type A. If the durometer hardness is 60 or higher, deformation when the drainage channel surrounding member is lifted is suppressed, improving workability, and if it is 90 or lower, flexibility is improved, making it easier to deform in accordance with the distortion of the construction substrate. The durometer hardness is measured in accordance with JIS K7215 (1986).

[0043] The length L10 of the drainage channel surrounding member 10 is not particularly limited, but from the viewpoint of workability, it is preferably 1.0 m or more, more preferably 1.5 m or more, preferably 4.0 m or less, and more preferably 2.5 m or less.

[0044] (Constituent materials) The material constituting the drainage channel surround member 10 is not particularly limited, and conventionally used materials can be used. Preferably, the drainage channel surround member is formed from a resin composition containing a resin component and a plasticizer.

[0045] The aforementioned resin component may be used alone or in combination of two or more types. Examples of the aforementioned resin component include various synthetic resins such as vinyl chloride resins, polyolefin resins, polyurethane resins, and acrylic resins. Examples of vinyl chloride resins include vinyl chloride resin (homopolymer), vinyl chloride-vinyl acetate copolymers, and ethylene-vinyl chloride copolymers, which contain vinyl chloride as a copolymer component. Examples of polyolefin resins include polypropylene resins and polyethylene resins. In particular, vinyl chloride resins are preferred as the resin component because they have excellent flexibility and durability, as well as excellent processability.

[0046] When a vinyl chloride resin is used as the resin component, the content of the vinyl chloride resin in the resin component is preferably 50% by mass or more, more preferably 70% by mass or more, and even more preferably 90% by mass or more. It is also preferable to use only a vinyl chloride resin as the resin component.

[0047] The aforementioned plasticizer may be used alone or in combination of two or more types. The aforementioned plasticizer is not particularly limited and includes dioctyl phthalate (DOP), diheptyl phthalate (DHP), diisononyl phthalate (DINP), trioctyl phosphate (TOP), triphenyl phosphate (TPP), dioctyl terephthalate (DOTP), dioctyl isophthalate (DOIP), diisononylcyclohexyl phthalate (DINCH), and the like.

[0048] The content of the plasticizer in the resin composition may be adjusted as appropriate according to the desired hardness of the drainage channel surround member. The content of the plasticizer in the resin composition is preferably 20 parts by mass or more, more preferably 30 parts by mass or more, preferably 60 parts by mass or less, and more preferably 50 parts by mass or less, per 100 parts by mass of the resin component.

[0049] The resin composition may optionally contain a filler. The filler may be used alone or in combination of two or more types. Inorganic fillers are preferred as the filler. Examples of inorganic fillers include oxides, hydroxides, carbonates, chlorides, and silicates of inorganic or metallic elements. Specifically, examples include calcium oxide, barium carbonate, magnesium hydroxide, aluminum hydroxide, clay, talc, mica, calcium carbonate, silica sand, aluminum hydroxide, and calcium silicate. The calcium carbonate may be either heavy calcium carbonate or light calcium carbonate. Among these, calcium carbonate is preferably used as an inorganic filler from the viewpoint of processability and cost.

[0050] The filler can usually be used in powder form, and its volume-average particle size can be appropriately set within a range of approximately 1 μm to 300 μm.

[0051] The amount of filler in the resin composition may be adjusted as appropriate according to the desired hardness of the drainage channel surround member. When a filler is added, the amount of filler in the resin composition is preferably 50 parts by mass or more, more preferably 70 parts by mass or more, preferably 200 parts by mass or less, and more preferably 150 parts by mass or less, per 100 parts by mass of the resin component.

[0052] The resin composition may contain other additives. Examples of other additives include stabilizers, processing aids, fungicides, flame retardants, antioxidants, and colorants. If these additives are inorganic compounds, their content shall also be included in the content of the filler.

[0053] (Manufacturing method) The drainage channel surround member 10 can be obtained, for example, by extruding the constituent material. Since the extruded product is usually very long, the drainage channel surround member 10 can be obtained by cutting it to an appropriate size. Alternatively, after extrusion molding, a coating layer may be formed on the surface of the drainage channel surround member 10 by a coating treatment. By forming a coating layer, the drainage channel surround member 10 can be given properties such as hydrophilicity, water repellency, stain resistance, and abrasion resistance.

[0054] By adding hydrophilic or hydrophobic agents to the coating layer material before hardening, the coating layer can be formed to impart hydrophilicity or hydrophobicity to the drainage channel surrounding member 10, thereby making the drainage flow even smoother. In particular, it is preferable to impart hydrophilicity by adding a hydrophilic agent to the coating layer material. By making the coating layer hydrophilic, it becomes less likely for water droplets to remain on the drainage channel surrounding member, thereby further improving drainage performance.

[0055] Examples of materials for the coating layer include active energy ray curable resins and waxes. The active energy ray curable resin is a resin that hardens with ultraviolet light or electron beams, and ultraviolet-curable resins are preferred due to their excellent processability.

[0056] (Second embodiment) Figure 3 is a side view of the second embodiment of the drainage channel surround member 10. Figure 4 is a perspective view of the drainage channel surround member 10 of Figure 3.

[0057] The drainage channel surround member 10 of the second embodiment shown in Figures 3 and 4 differs from that of the first embodiment only in the shape of the first strip-shaped portion 1. The second strip-shaped portion 2 and the connecting portion 3 are the same as those of the first embodiment, and therefore are given the same reference numerals and their description is omitted.

[0058] The drainage channel surround member 10 shown in Figures 3 and 4 has a first strip-shaped portion 1, a second strip-shaped portion 2, and a connecting portion 3 that connects the side edge of the first strip-shaped portion 1 and the side edge of the second strip-shaped portion 2. The longitudinal lengths of the first strip-shaped portion 1, the second strip-shaped portion 2, and the connecting portion 3 are all the same.

[0059] (First strip portion) The first strip portion 1 is a flat plate member having a rectangular shape in plan view, and its thickness gradually increases from the side end of the joint portion toward the tip. The member 10 around the drainage groove shown in FIG. 3 is the same as in the first embodiment, and the surface of the first strip portion 1 is linearly inclined from the side end of the joint portion toward the tip. Further, the thickness T11 of the side end of the joint portion of the first strip portion 1, the thickness T13 of the tip, and the thickness T12 of the central point between the side end and the tip of the first strip portion satisfy the relationship of T11 < T12 < T13.

[0060] The thicknesses L11, L12, L13, and the width W1 of the first strip portion 1, and the groove 1a formed on the back surface are the same as in the first embodiment, and the preferable numerical ranges are also the same. In FIGS. 3 and 4, the mode in which the groove 1a is provided on the back surface of the first strip portion 1 is described, but the groove 1a may not be formed.

[0061] In FIG. 3, an extension portion 1b thinner than the thickness T13 of the tip of the first strip portion 1 is integrally formed on the back surface side of the tip edge of the first strip portion 1. By having the thin extension portion 1b, a space can be formed above the extension portion 1b when the member 10 around the drainage groove is installed, and the bonding material can be arranged in this space. It is preferable that the extension portion 1b is formed over the entire length in the longitudinal direction of the first strip portion.

[0062] In order to enhance the bonding strength between the drainage channel member 10 and the resin flooring material, it is preferable to join the joint between the drainage channel member 10 and the resin flooring material with a bonding material. In this case, during construction, it is necessary to form a groove for placing the bonding material at the joint between the drainage channel member 10 and the resin flooring material. However, if the groove is formed by cutting out both the drainage channel member 10 and the resin flooring material simultaneously, it is difficult to form a clean groove because the hardness of the materials of the drainage channel member 10 and the resin flooring material are different. In contrast, if the first strip-shaped portion 1 has an extended portion 1b, it is only necessary to form a cutout in the resin flooring material, making it easier to form a bonding groove. Furthermore, when forming a cutout in the resin flooring material, the extended portion 1b of the drainage channel member 10 can be used as a guide for a groove cutting cutter, making it easier to form a clean groove. As a result, after construction, the joint between the drainage channel member 10 and the resin flooring material is neatly finished, and the drainage flowing from the resin flooring material to the drainage channel member 10 flows smoothly without getting stuck at the joint.

[0063] The length of the extension portion 1b (the length from the tip of the first strip portion 1 to the tip of the extension portion 1b) is preferably 1.0 mm or more, more preferably 1.2 mm or more, preferably 1.5 mm or less, and more preferably 1.4 mm or less. If the length of the extension portion 1b is 1.0 mm or more, the space formed above the extension portion 1b becomes larger, allowing for sufficient placement of the welding rod, and if it is 1.5 mm or less, the mechanical strength of the extension portion 1b is good.

[0064] The thickness T14 at the tip of the extension portion 1b is preferably 0.5 mm or more, and more preferably 1.0 mm or more. If the thickness T14 at the tip is 0.5 mm or more, the mechanical strength of the extension portion will be good. The thickness of the extension portion 1b may be constant from the side end of the first strip portion to the tip of the extension portion 1b, or it may be varied. Preferably, the thickness of the extension portion 1b is the same at the side end of the first strip portion as the thickness T13 at the tip of the first strip portion, and decreases gradually or in steps from the side end of the first strip portion to the tip of the extension portion 1b. In Figure 3, in the cross-sectional shape of the extension portion 1b, it is more preferable that the surface of the extension portion 1b is in the shape of an arc connecting the side end of the first strip portion and the tip of the extension portion 1b. In this case, the radius of curvature of the arc is preferably 1.0 mm or more, more preferably 1.2 mm or more, preferably 1.5 mm or less, and more preferably 1.4 mm or less.

[0065] The difference (T13-T14) between the thickness T13 at the tip of the first strip-shaped portion and the thickness T14 at the tip of the extension portion is preferably 1.0 mm or more, more preferably 1.2 mm or more, preferably 1.5 mm or less, and more preferably 1.4 mm or less. If the difference (T13-T14) is 1.0 mm or more, the space formed above the extension portion 1b becomes larger, allowing sufficient placement of the joining material, and if it is 1.5 mm or less, the mechanical strength of the extension portion 1b is good.

[0066] (Drainage channel surrounding components) In the second embodiment, the drainage channel surround member 10 has the same preferred range as in the first embodiment, including the angle θ between the back surface of the first strip-shaped portion 1 and the back surface of the second strip-shaped portion 2, the durometer hardness, and the length L10. The material constituting the drainage channel surround member 10 is also the same as in the first embodiment.

[0067] In the second embodiment, since an extension 1b is formed at the tip of the first strip-shaped portion 1, it is not necessary to cut out the drainage channel surrounding member 10 when forming a joining groove at the joint between the drainage channel surrounding member 10 and the resin flooring material during construction. Therefore, the durometer hardness of the drainage channel surrounding member 10 can be increased. For this reason, the durometer hardness of the drainage channel surrounding member 10 in the second embodiment is preferably 70 or higher for type A. If the durometer hardness is 70 or higher for type A, deformation of the drainage channel surrounding member 10 during storage and transportation can be further suppressed.

[0068] (Third embodiment) Figure 5 is a side view of a third embodiment of the drainage channel surround member 10. Figure 6 is a perspective view of the drainage channel surround member 10 of Figure 5.

[0069] The drainage channel surround member 10 of the third embodiment shown in Figures 5 and 6 differs from that of the second embodiment only in the shape of the second strip-shaped portion 2. The first strip-shaped portion 1 and the connecting portion 3 are the same as those of the second embodiment, and therefore are given the same reference numerals and their description is omitted.

[0070] The drainage channel surround member 10 shown in Figures 5 and 6 has a first strip-shaped portion 1, a second strip-shaped portion 2, and a connecting portion 3 that connects the side edge of the first strip-shaped portion 1 and the side edge of the second strip-shaped portion 2. The longitudinal lengths of the first strip-shaped portion 1, the second strip-shaped portion 2, and the connecting portion 3 are all the same.

[0071] (Second band-shaped area) The second strip-shaped portion 2 is a flat plate member with a rectangular shape in plan view. The thickness of the second strip-shaped portion 2 gradually or in steps from the joint side end toward the tip. Specifically, the thickness gradually or in steps from the side edge connected to the joint portion 3 toward the other side edge. With this configuration, when the second strip-shaped portion 2 is inserted into a void formed near the drainage channel and adhesive is filled into the void and hardened, an anchoring effect is created, making it difficult for it to come out of the void. This prevents the second strip-shaped portion 2 from floating up from the void after construction, and allows for smooth drainage flow over a long period of time.

[0072] Furthermore, if the thickness of both strip-shaped portions constituting the drainage channel surround member increases gradually or in steps from the joint side end toward the tip, either of the two strip-shaped portions constituting the drainage channel surround member may be designated as the first strip-shaped portion. In this case, the strip-shaped portion inserted into the gap in the floor becomes the second strip-shaped portion, and the strip-shaped portion placed on the floor becomes the first strip-shaped portion.

[0073] If the thickness of the second strip-shaped portion 2 is gradually increasing, the thickness T at any point is... n And the thickness T of the point 10 mm towards the tip from this point. n+10 The difference (T n+10 -T n The diameter is greater than 0 mm, preferably 0.1 mm or more, preferably 0.8 mm or less, more preferably 0.5 mm or less, and even more preferably 0.3 mm or less. When the thickness of the second strip-shaped portion 2 increases in stages, the number of steps is preferably 2 or more and 5 or less. The difference in thickness between adjacent steps can be adjusted as appropriate according to the number of steps, and is preferably greater than 0 mm and 0.4 mm or less.

[0074] The thickness of the second strip-shaped portion 2 is preferably gradually increasing, and more preferably linear in its thickness. That is, in the cross-sectional shape of the second strip-shaped portion 2, it is more preferable that the surface slopes linearly from the end on the joint side toward the tip. The side of the second strip-shaped portion 2 where the first strip-shaped portion 1 is located is the back surface, and the side where the first strip-shaped portion 1 is not located is the front surface.

[0075] The difference (T23-T21) between the thickness T21 at the joint side end of the second strip-shaped portion 2 and the thickness T23 at the tip is preferably 0.2 mm or more, more preferably 0.3 mm or more, preferably 1.0 mm or less, and more preferably 0.6 mm or less.

[0076] The width W2 of the second strip-shaped portion 2 (length from the end of the joint to the tip) is preferably 10 mm or more, more preferably 15 mm or more, preferably 30 mm or less, and more preferably 25 mm or less.

[0077] It is preferable that the ratio ((T23 - T21) / W2) of the difference (T23 - T21) and the length W2 of the second strip portion 2 is 0.1 or more, more preferably 0.2 or more. If the ratio ((T23 - T21) / W2) is 0.1 or more, the anchor effect becomes larger, and it becomes more difficult for the second strip portion 2 to come out of the gap. Thereby, after construction, it is possible to prevent the second strip portion 2 from rising from the gap and to smooth the flow of drainage over a long period. The upper limit of the ratio ((T23 - T21) / W2) is not particularly limited, but usually 0.4 or less is preferable, more preferably 0.3 or less.

[0078] The thickness T23 of the tip of the second strip portion 2 is not particularly limited, but is preferably 1.0 mm or more, more preferably 1.5 mm or more, preferably 6.0 mm or less, and more preferably 4.0 mm or less. If the thickness T23 is 1.0 mm or more, the mechanical strength is high, and it is possible to suppress the second strip portion 2 from being bent or cracked when inserted into the gap near the drainage ditch. If it is 6.0 mm or less, it becomes easier to insert into the gap near the drainage ditch.

[0079] The thickness T21 of the side end on the joint side of the second strip portion 2 is not particularly limited as long as the mechanical strength of the portion joined to the joint can be maintained. The thickness T21 of the side end on the joint side of the second strip portion 2 is preferably 0.9 mm or more, more preferably 1.4 mm or more, preferably 5.9 mm or less, and more preferably 3.9 mm or less.

[0080] It is preferable that the thickness T21 of the side end on the joint side of the second strip portion 2, the thickness T23 of the tip, and the thickness T22 of the center point between the side end on the joint side and the tip of the second strip portion 2 satisfy the relationship of T21 < T22 < T23.

[0081] In the member 10 around the drainage ditch in FIG. 5, the thickness T23 of the tip of the second strip portion 2 is different from the thickness T13 of the tip of the first strip portion 1. If the thickness T23 of the tip of the second strip portion 2 is different from the thickness T13 of the tip of the first strip portion 1, it is possible to cope with resin floor materials having different thicknesses with one type of member around the drainage ditch.

[0082] In this case, the thickness T13 at the tip of the first strip-shaped portion 1 is preferably 2.0 mm or more, more preferably 2.5 mm or more, preferably 6.0 mm or less, and more preferably 3.5 mm or less. Also in this case, the thickness T23 at the tip of the second strip-shaped portion is preferably 1.0 mm or more, more preferably 1.5 mm or more, preferably 4.0 mm or less, and more preferably 2.5 mm or less.

[0083] The thickness T23 at the tip of the second strip-shaped portion 2 may be the same as the thickness T13 at the tip of the first strip-shaped portion 1.

[0084] The groove 2a provided on the back surface of the second strip-shaped portion 2 is the same as in the first embodiment. Although Figures 5 and 6 show an embodiment in which a groove 2a is provided on the back surface of the second strip-shaped portion 2, the groove 2a may not be formed.

[0085] In Figure 5, the second strip-shaped portion 2 has an extension portion 2b integrally molded on the back side of its leading edge, which is thinner than the thickness T23 of the leading edge of the second strip-shaped portion 2. Having a thin extension portion 2b makes it easier to insert the second strip-shaped portion 2 into the gap. Preferably, the extension portion 2b is formed along the entire length of the second strip-shaped portion 2 in the longitudinal direction.

[0086] The length of the extension portion 2b (the length from the tip of the second strip portion 2 to the tip of the extension portion 2b) is preferably 1.0 mm or more, more preferably 1.2 mm or more, preferably 1.5 mm or less, and more preferably 1.4 mm or less. If the length of the extension portion 2b is 1.0 mm or more, the second strip portion 2b will be easier to insert into the gap, and if it is 1.5 mm or less, the mechanical strength of the extension portion will be good.

[0087] The thickness T24 at the tip of the extension portion 2b is preferably 0.5 mm or more, and more preferably 1.0 mm or more. If the thickness T24 at the tip is 0.5 mm or more, the mechanical strength of the extension portion will be good. The thickness of the extension portion 2b may be constant from the side end of the second strip portion to the tip of the extension portion 2b, or it may be varied. Preferably, the thickness of the extension portion 2b is the same at the side end of the second strip portion as the thickness T23 at the tip of the second strip portion 2, and decreases gradually or in steps from the side end of the second strip portion to the tip of the extension portion 2b. In Figure 5, in the cross-sectional shape of the extension portion 2b, it is more preferable that the surface of the extension portion 2b is in the shape of an arc connecting the side end of the second strip portion and the tip of the extension portion 2b. In this case, the radius of curvature of the arc is preferably 1.0 mm or more, more preferably 1.2 mm or more, preferably 1.5 mm or less, and more preferably 1.4 mm or less.

[0088] The difference (T23-T24) between the thickness T23 at the tip of the second strip-shaped portion and the thickness T24 at the tip of the extension portion is preferably 1.0 mm or more, more preferably 1.2 mm or more, preferably 1.5 mm or less, and more preferably 1.4 mm or less. If the difference (T23-T24) is 1.0 mm or more, the second strip-shaped portion 2 can be easily inserted through the gap, and if it is 1.5 mm or less, the mechanical strength of the extension portion 2b will be good.

[0089] (Drainage channel surrounding components) In the third embodiment, the drainage channel surround member 10 has the same preferred range for the angle θ between the back surface of the first strip-shaped portion 1 and the back surface of the second strip-shaped portion 2, the durometer hardness, and the length L10 as in the first embodiment. The material constituting the drainage channel surround member 10 is also the same as in the first embodiment.

[0090] [Floor structure] An example of the floor structure of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the following embodiments. Figure 7 is a schematic diagram of a floor structure equipped with the drainage channel surrounding member 10 of the third embodiment shown in Figures 5 and 6.

[0091] The floor structure 100 of the present invention is a floor structure equipped with the drainage channel surrounding member 10. The floor structure 100 has a floor portion 20 and a drainage channel 30, a resin floor material 40 is laid on the floor portion 20, a gap 21 is formed in the vicinity of the drainage channel 30 of the floor portion 20, a second strip-shaped portion 2 of the drainage channel surrounding member 10 is inserted into the gap 21, a first strip-shaped portion 1 of the drainage channel surrounding member 10 is placed on the upper surface of the floor portion, and the leading edge of the first strip-shaped portion 1 and the end edge of the resin floor material 40 are joined together.

[0092] The floor structure 100 comprises a floor section 20 and a drainage channel 30. Examples of such floor structures 100 include kitchens, toilets, bathrooms, etc. The material of the floor section 20 is not particularly limited, but examples include mortar, concrete, metal, wood, resin, etc.

[0093] The structure of the drainage channel 30 is not particularly limited, as long as it can drain water and other liquids from the floor. In the floor structure 100 shown in Figure 7, the drainage channel 30 has an outer frame 31 arranged around its periphery. The outer frame 31 has a lid receiving portion, and a channel cover 32 is placed on the lid receiving portion of this outer frame 31.

[0094] A resin flooring material 40 is laid on the floor section 20. The resin flooring material 40 may be in the form of a sheet or tiles. Examples of the resin flooring material include vinyl flooring sheets, floor tiles, etc., as specified in JIS A 5705:2016.

[0095] Examples of the floor sheet include single-layer vinyl floor sheets, multi-layer vinyl floor sheets, foamed multi-layer vinyl floor sheets, and cushion flooring. Examples of the floor tile include single-layer vinyl floor tiles, multi-layer vinyl floor tiles, and composition vinyl. When laid on a floor surface, the floor sheet has fewer joints than floor tiles and can prevent water seepage, making it suitable for use in wet areas such as those described in the present invention.

[0096] The aforementioned resin flooring material is not particularly limited and may be appropriately selected depending on the application. The material of the resin flooring material is preferably a resin material mainly composed of thermoplastic resin. Examples of resin components constituting the resin flooring material include various synthetic resins such as vinyl chloride resin, polyolefin resin, polyurethane resin, and acrylic resin. Among these, resin flooring material containing vinyl chloride resin as a resin component is preferred from the viewpoint of ease of installation and durability.

[0097] Furthermore, it is preferable that the resin components constituting the resin flooring material and the resin components constituting the drainage channel surround members are of the same type. For example, if the resin flooring material contains a vinyl chloride resin as a resin component, it is preferable that the drainage channel surround members are formed from a resin composition containing a vinyl chloride resin as a resin component.

[0098] The thickness of the resin flooring material is not particularly limited and can be adjusted as appropriate depending on the application. The thickness of the tip of the first strip-shaped portion of the drainage channel surround member placed on the floor is preferably 0.5 mm or less in absolute terms compared to the thickness of the resin flooring material, and more preferably approximately the same as the thickness of the resin flooring material. If the thickness of the tip of the first strip-shaped portion is within the above range, it will not obstruct the flow of water, and will be less susceptible to pressure damage from wheels due to the step when a trolley or other vehicle passes over it.

[0099] A gap 21 is formed near the drainage channel 30 in the floor portion 20. The gap 21 is formed to allow the insertion of the second strip-shaped portion 2 of the drainage channel surrounding member 10. The gap 21 is formed between the floor portion 20 and the outer frame 31. The gap 21 is formed to be parallel to the outer frame of the drainage channel 30. If an outer frame is provided around the periphery of the drainage channel 30, a gap should be formed between the floor portion and the outer frame.

[0100] The second strip-shaped portion 2 of the drainage channel surrounding member 10 is inserted into the gap 21. The depth of the gap 21 is formed to be greater than the width W2 of the second strip-shaped portion 2. The width of the gap 21 is formed to be greater than the thickness T23 of the second strip-shaped portion 2. Furthermore, adhesive 50 is filled around the second strip-shaped portion 2 in the gap 21, fixing the second strip-shaped portion 2 inside the gap 21. The width and depth of the gap 21 can be appropriately adjusted according to the thickness and length of the second strip-shaped portion 2. The distance between the gap 21 and the drainage channel 30 is not particularly limited, but is usually greater than 0 mm and up to 50 mm.

[0101] Furthermore, in the drainage channel surrounding member 10 shown in Figure 7, the thickness of the second strip-shaped portion 2 gradually increases from the joint side end toward the tip. In other words, within the void, the thickness of the second strip-shaped portion 2 increases as it deepens. Therefore, when the adhesive 50 hardens, an anchoring effect is generated, making it more difficult for the second strip-shaped portion 2 to come out of the void 21, preventing it from floating up over time after construction and ensuring smooth drainage flow for a long period of time.

[0102] The first strip-shaped portion 1 of the drainage channel surrounding member 10 is placed on the upper surface of the floor portion 20. Adhesive or sealant 50 is placed between the first strip-shaped portion 1 and the upper surface of the floor portion, and the first strip-shaped portion 1 and the floor portion 20 are bonded together by the adhesive or sealant 50. Furthermore, it is preferable that the gap 21 is filled with adhesive or sealant 50, with the second strip-shaped portion 2 inserted into it. It is even more preferable that the gap 21 be filled with adhesive because it eliminates the need for masking tape and offers excellent workability.

[0103] As the adhesive, acrylic resins, epoxy resins, urethane resins, etc., can be used, and among these, epoxy resins and urethane resins are preferred from the viewpoint of strength. As the sealant, silicone resins, modified silicone resins, polyurethane resins, polysulfide resins, acrylic resins, butyl rubber resins, etc., can be used, and either one-component or two-component types are acceptable. As the sealing material, polyurethane resins are preferred from the viewpoint of strength, and two-component polyurethane resins are particularly preferred.

[0104] The drainage channel surround member 10 has a first strip-shaped portion 1 whose thickness gradually increases from the joint side end towards the tip. In other words, the height of the first strip-shaped portion 1 on the floor portion 20 gradually decreases from the resin floor material 40 side towards the drainage channel 30. Because of this slope in the height of the first strip-shaped portion 1, wastewater flowing from the resin floor material 40 side flows more easily into the drainage channel 30, and its residue on the drainage channel surround member 10 is suppressed.

[0105] The leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 are joined by a joining material 60. The leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 are positioned so that their edges abut each other, and these edges are joined together. These joinings can be performed using the joining material 60. The joining material 60 is used to join the drainage channel surrounding member 10 and the resin flooring material 40, and examples include welding rods and sealants.

[0106] Furthermore, from the viewpoint of ease of construction, it is more preferable that the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 are joined by welding using a welding rod. When joining by welding, a welding groove can be formed on the surface of the abutting portion between the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40, and a welding rod can be placed in this welding groove.

[0107] The cross-sectional shape of the welding groove is not particularly limited, but examples include U-shaped and V-shaped grooves. The depth of the welding groove is preferably 50% to 67% when the thickness of the resin flooring material is considered 100%. The width of the welding groove is not particularly limited and can be adjusted appropriately according to the diameter of the welding rod used, but is usually 3.0 mm to 5.0 mm.

[0108] The bonding material 60 is preferably a resin bonding material, such as a vinyl chloride resin, a polyolefin resin, a polyurethane resin, or an acrylic resin. It is preferable that the resin bonding material, the resin component constituting the resin flooring material, and the resin component constituting the drainage channel surround member are of the same type. For example, if the resin flooring material contains a vinyl chloride resin as a resin component, and the drainage channel surround member is formed from a resin composition containing a vinyl chloride resin as a resin component, the bonding material is preferably a vinyl chloride resin.

[0109] In the floor structure 100 shown in Figure 7, the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 are joined by welding using a joining material 60. A welding groove is formed on the surface of the abutting portion between the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40, and the joining material 60 is placed in this welding groove. In the drainage channel surrounding member 10 shown in Figure 7, the first strip-shaped portion 1 has an extended portion 1b. Therefore, the welding groove can be formed by cutting out only the resin flooring material 40.

[0110] [Installation method for resin flooring] The present invention relates to a method for installing resin flooring, which involves installing resin flooring 40 using the drainage channel surround member 10. The construction method described above preferably comprises the following steps in a floor structure having a floor portion 20 and a drainage channel 30: a first step of inserting the second strip portion 2 of the drainage channel surrounding member 10 into a gap 21 formed in the vicinity of the drainage channel 30 of the floor portion 20 and placing the first strip portion 1 of the drainage channel surrounding member 10 on the upper surface of the floor portion; a second step of laying the resin floor material 40 on the floor portion 20; and a third step of joining the leading edge of the first strip portion 1 with the end edge of the resin floor material 40.

[0111] (1st step) In the first step described above, the drainage channel surround member 10 is placed on the floor structure having the floor portion 20 and the drainage channel 30.

[0112] The drainage channel surround member 10 is constructed by inserting the second strip-shaped portion into a void 21 formed near the drainage channel and placing the first strip-shaped portion 1 on the upper surface of the floor portion 20. Specifically, an adhesive or sealant is placed inside the void 21, the adhesive is applied to the upper surface of the floor portion 20, the second strip-shaped portion 2 is inserted into the void 21, and the first strip-shaped portion 1 is placed on the upper surface of the floor portion 20. Then, by curing the adhesive or sealant, the second strip-shaped portion 2 is fixed inside the void 21 and the first strip-shaped portion 1 is fixed to the upper surface of the floor portion 20. It is preferable to place the adhesive inside the void 21. The adhesive has excellent workability because it does not require masking tape treatment. In particular, it is especially preferable to use the same adhesive used for bonding the resin floor material 40 and the floor portion 20, as this allows the application of the adhesive to the floor portion and filling of the void to be done in one step, making construction easier.

[0113] If a void 21 is not formed near the drainage channel 30, the void may be formed before performing the first step. Preferably, the void 21 is formed near the drainage channel and parallel to the outer frame of the drainage channel. The void can be formed, for example, using a diamond cutter.

[0114] (2nd process) In the second step, the resin flooring material 40 is laid on the floor portion 20. The method of laying the resin flooring material 40 on the floor portion 20 is not particularly limited and can be done by a conventionally known method. In this case, the resin flooring material 40 is laid so that its edge and the leading edge of the first strip portion 1 of the drainage channel surrounding member 10 are abutted together.

[0115] Furthermore, the first and second steps may be performed in either order. That is, the second step may be performed after the first step, or the first step may be performed after the second step. In other words, the resin flooring material may be laid after the drainage channel surround members are placed, or the drainage channel surround members may be placed after the resin flooring material is laid.

[0116] (3rd step) In the third step, the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 are joined together. Since the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 are positioned so that their edges abut each other, these edges are joined together. These joining can be done using a joining material.

[0117] When joining using a sealant, the sealant is filled between the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40, and then the sealant is allowed to harden. When using a sealant, a groove for the joining material may be formed on the surface of the abutting portion between the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40, as is done in welding using a welding rod as described later, or it may not be necessary to form a groove.

[0118] Furthermore, the leading edge of the first strip-shaped portion 1 and the edge of the resin flooring material 40 may be joined by welding using a joining material. In this case, the third step includes forming a welding groove on the surface of the abutting portion between the leading edge of the first strip-shaped portion 1 and the end edge of the resin flooring material 40, and placing a welding rod in the welding groove to join the leading edge of the first strip-shaped portion 1 and the end edge of the resin flooring material 40.

[0119] In the step of forming the welding groove, the surface of the abutting portion between the leading edge of the first strip-shaped portion 1 and the end edge of the resin flooring material 40 is cut out using a tool to form the groove. The first strip-shaped portion 1 and the resin flooring material 40 may be cut out separately or simultaneously. If the first strip-shaped portion 1 has an extension portion 1b, only the resin flooring material 40 needs to be cut out.

[0120] In the step of placing a welding rod in the welding groove and joining the leading edge of the first strip-shaped portion 1 to the edge of the resin flooring material 40, the welding rod is heated and melted, placed in the welding groove, and the welding rod is solidified to weld the first strip-shaped portion 1 and the resin flooring material 40. If, after welding, the welding rod is raised higher than the surface of the first strip-shaped portion 1 and the resin flooring material 40, it is cut to match the surface of the first strip-shaped portion 1 and the resin flooring material 40.

[0121] The drainage channel surround member 10 shown in Figure 5 has a first strip-shaped portion 1 and a second strip-shaped portion 2 with different thicknesses, and extensions 1b and 2b are formed at the ends of both the first strip-shaped portion 1 and the second strip-shaped portion 2. During installation, the worker can select the strip-shaped portion that is closer in thickness to the resin flooring material 40 from the first strip-shaped portion 1 and the second strip-shaped portion 2, and position it so as to join it with the resin flooring material 40. In the first step, regardless of whether the first strip-shaped portion 1 or the second strip-shaped portion 2 is inserted into the gap 21, the extensions 1b and 2b at the ends make insertion easier. Furthermore, in the third step, the extensions at the ends of the remaining strip-shaped portions of the first strip-shaped portion 1 and the second strip-shaped portion 2 that were not inserted into the gap 21 in the first step make it easier to join them with the edge of the resin flooring material 40. In this way, both the extensions 1b and 2b of the first strip-shaped section 1 and the second strip-shaped section 2 can achieve different effects while dramatically improving workability.

[0122] Furthermore, in the drainage channel surround member 10 shown in Figure 5, both the first strip-shaped portion 1 and the second strip-shaped portion 2 have a thickness that gradually or in stages increases from the joint side end towards the tip. Therefore, regardless of whether the first strip-shaped portion or the second strip-shaped portion is inserted into the gap 21 in the first step, it will be difficult for them to come loose after construction due to the anchoring effect. This prevents the strip-shaped portion from floating up from the gap after construction, resulting in the effect of smooth drainage flow over a long period of time. In addition, after construction, the remaining strip-shaped portion of the first strip-shaped portion 1 and the second strip-shaped portion 2 that was not inserted into the gap 21 in the first step is joined with the resin floor material 40, and has the effect of making it easier for drainage to flow into the drainage channel. In this way, both the first strip-shaped portion 1 and the second strip-shaped portion 2 can dramatically improve drainage performance and strength after construction, each providing a different effect.

[0123] [Example of floor structure] Figure 8 is a schematic diagram of a floor structure 200 equipped with a drainage channel surround member 70 as a reference example. In Figure 8, the floor section 20, void 21, drainage channel 30, outer frame 31, channel cover 32, resin floor material 40, adhesive 50, and joining material 60 are the same as in Figure 7, so they are given the same reference numerals and their explanations are omitted.

[0124] The drainage channel surround member 70 shown in Figure 8 has a first strip-shaped portion 71, a second strip-shaped portion 72, and a connecting portion 73 that connects the side edge of the first strip-shaped portion 71 and the side edge of the second strip-shaped portion 72. The first strip-shaped portion 71 and the second strip-shaped portion 72 are flat plate members with a rectangular shape in plan view, and are molded to a uniform thickness. The first strip-shaped portion 71 and the second strip-shaped portion 72 have an extension portion that is thinner than the thickness of their respective tips integrally molded on the back side of their tip edges.

[0125] The first strip-shaped portion 71 of the drainage channel surround member 70 is placed on the upper surface of the floor portion 20. Because the thickness of the first strip-shaped portion 71 of the drainage channel surround member 70 is uniform, the height of the first strip-shaped portion 71 on the floor portion 20 is constant from the resin floor material 40 side to the drainage channel 30. Because the height of the first strip-shaped portion 71 is constant in this way, wastewater flowing from the resin floor material 40 side tends to remain on the drainage channel surround member 70. [Industrial applicability]

[0126] The drainage channel surround member of the present invention can be used to fix resin flooring material around a drainage channel when laying resin flooring material on a floor equipped with a drainage channel. [Explanation of Symbols]

[0127] 1: First strip section, 1a: Groove, 1b: Extension section, 2: Second strip section, 2a: Groove, 2b: Extension section, 3: Joint section, 10: Drainage channel surrounding member, 20: Floor section, 21: Gap, 30: Drainage channel, 31: Outer frame, 32: Channel cover, 40: Resin flooring material, 50: Adhesive or sealant, 60: Joining material, 100: Floor structure

Claims

1. A drainage channel member used in a floor structure having a floor portion and a drainage channel, wherein a resin flooring material is laid on the floor portion, a gap is formed in the vicinity of the drainage channel on the floor portion, a second strip-shaped portion of the drainage channel member is inserted into the gap, a first strip-shaped portion of the drainage channel member is placed on the upper surface of the floor portion, and the leading edge of the first strip-shaped portion and the edge of the resin flooring material are joined together, It has a first strip-shaped portion, a second strip-shaped portion, and a connecting portion that connects the side edge of the first strip-shaped portion and the side edge of the second strip-shaped portion. The thickness of the first strip-shaped portion increases gradually or in steps from the joint side end toward the tip. A drainage channel surround member characterized in that the width W1 of the first strip-shaped portion is 10 mm or more and 30 mm or less.

2. A drainage channel member used in a floor structure having a floor portion and a drainage channel, wherein a resin flooring material is laid on the floor portion, a gap is formed in the vicinity of the drainage channel on the floor portion, a second strip-shaped portion of the drainage channel member is inserted into the gap, a first strip-shaped portion of the drainage channel member is placed on the upper surface of the floor portion, and the leading edge of the first strip-shaped portion and the edge of the resin flooring material are joined together, It has a first strip-shaped portion, a second strip-shaped portion, and a connecting portion that connects the side edge of the first strip-shaped portion and the side edge of the second strip-shaped portion. The thickness of the first strip-shaped portion increases gradually or in steps from the joint side end toward the tip. An extension is integrally molded on the back side of the leading edge of the first strip-shaped portion. A drainage channel surround member characterized in that the thickness of the extended portion is thinner than the thickness of the tip of the first strip-shaped portion.

3. A drainage channel member used in a floor structure having a floor portion and a drainage channel, wherein a resin flooring material is laid on the floor portion, a gap is formed in the vicinity of the drainage channel on the floor portion, a second strip-shaped portion of the drainage channel member is inserted into the gap, a first strip-shaped portion of the drainage channel member is placed on the upper surface of the floor portion, and the leading edge of the first strip-shaped portion and the edge of the resin flooring material are joined together, It has a first strip-shaped portion, a second strip-shaped portion, and a connecting portion that connects the side edge of the first strip-shaped portion and the side edge of the second strip-shaped portion. The thickness of the first strip-shaped portion increases gradually or in steps from the joint side end toward the tip. A drainage channel surround member characterized in that the thickness of the second strip-shaped portion gradually or in steps from the joint side end toward the tip.

4. The drainage channel surround member according to any one of claims 1 to 3, wherein grooves are provided on the back surface of the first strip-shaped portion and / or the second strip-shaped portion.

5. A floor structure comprising a drainage channel surround member according to any one of claims 1 to 3, It has a floor and a drainage channel. A resin flooring material is laid on the floor area. A void is formed near the drainage channel in the floor portion. The second strip portion of the drainage channel surround member is inserted into the aforementioned gap, and the first strip portion of the drainage channel surround member is placed on the upper surface of the floor. A floor structure characterized in that the leading edge of the first strip-shaped portion and the edge of the resin flooring material are joined together.

6. A method for installing resin flooring using the drainage channel surround member described in any one of Claims 1 to 3, In a floor structure having a floor portion and a drainage channel, the first step is to insert a second strip-shaped portion of the drainage channel surrounding member into a gap formed near the drainage channel in the floor portion, and to place the first strip-shaped portion of the drainage channel surrounding member on the upper surface of the floor portion; A second step is to lay resin flooring material on the floor; A construction method characterized by having a third step of joining the leading edge of the first strip-shaped portion with the edge of the resin flooring material.

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