JP7228326B2 - Floor finish structure and parting material used for this - Google Patents

Description

The present invention relates to a floor finishing structure having drainage grooves on the floor surface and a parting material used therefor.

A soft resin sheet is sometimes used as a finishing material in floors having drains, such as bathrooms and kitchens. Specific examples of the floor finishing structure of the floor having a drain using a resin sheet as the finishing material are as follows.
A step for placing a gutter cover (grating) made of metal is usually provided in the upper part of the drainage ditch, and a gutter cover receiving frame is provided so as to cover the step. A floor finishing material, which is a resin sheet, is adhered and fixed to the floor surrounding the groove lid receiving frame except for the drainage groove. Here, if a gap occurs in the joint between the edge of the floor finishing material and the groove lid receiving frame, water, dirt, food waste, etc. will enter the gap, causing the floor finishing material to peel off from the base, mold, etc. may occur. In order to prevent this, the joint between the end of the floor finishing material and the groove lid support frame is filled with a caulking material or the like.

Moreover, Patent Document 1 discloses the following construction method as a conventional technique.
When laying a synthetic resin sheet on a floor on which a drainage channel is formed, after forming a drainage channel with a groove lid receiving frame on the upper inner edge by placing mortar or concrete that constitutes the floor surface By cutting the mortar or concrete in the portion in contact with the outer side surface of the rising edge of the groove lid receiving frame, a concave groove of a predetermined depth is formed along the longitudinal direction of the rising edge. After that, an adhesive is applied to the entire recessed groove, and one edge of a synthetic resin L-shaped angle made of the same material as the synthetic resin sheet is inserted into the recessed groove and fixed in the recessed groove. The edge of the other edge of the L-shaped angle protrudes outward of the drain, and the edge of the synthetic resin sheet laid on the floor is butted against the edge of the other edge of the L-shaped angle. In this state, the back surface of the synthetic resin sheet and the back surface of the other edge of the L-shaped angle are adhered to the floor surface with an adhesive that has been applied to the floor surface in advance. Then, the butted portion of the edge of the synthetic resin sheet and the edge of the other edge of the L-shaped angle is watertightly welded by resin welding means. The floor finishing structure obtained by this construction method is such that a parting material is interposed between the floor finishing material (synthetic resin sheet) and the groove lid receiving frame of the drain, and the end part of the parting material and the floor finishing material is made of resin. Welding makes it watertight.

Japanese Patent Application Laid-Open No. 2005-16140

In the former floor finishing structure, caulking material is filled in a small gap between the end cross section of the floor finishing material and the receiving frame, so that the caulking material is removed by repeatedly walking or running on casters over the floor finishing material. Durability was not sufficient because there was a risk that water, dirt, etc. would enter through cracks caused by the load applied to the filling portion and the deterioration of the elastic sealing material over time. In the latter floor finish structure, the mortar or concrete of the portion in contact with the outer side surface of the rising edge of the ditch lid receiving frame is cut to form a concave groove, and the ditch lid receiving frame is fixed to the mortar or concrete. In some cases, screws and anchors driven into the joints became obstacles.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and to provide a floor finishing structure which is excellent in durability and workability in a floor having drains.

The means used by the present invention to solve the above-mentioned problems are a floor finishing material made of a synthetic resin sheet laid on a floor having a drain, and an edge of the floor finishing material adjacent to the drain. a parting member made of synthetic resin disposed in the upper end of the drainage groove, a step for placing a groove lid is provided inside the drain groove, and a groove lid receiving frame is installed on the step and is fixed by the fixing means. The parting material covers the floor and is inserted into a joint piece joined to the end of the floor finishing material and a groove formed in the floor adjacent to the groove lid receiving frame. The floor finishing structure has an insertion piece, and the recessed groove is formed above the position of the fixing means.

Furthermore, in the floor finishing structure, the ratio b/a of the insertion depth b of the insertion piece to the thickness a of the insertion piece is set to 3.0 or more and 7.0 or less. The piece is fixed to the groove with an elastic sealing material, and the floor finishing material and the joining piece are resin-welded.

According to the present invention, it is possible to obtain a floor finishing structure excellent in durability and workability without causing peeling due to water intrusion from the edge of the floor finishing material.

1 is a cross-sectional view of a floor finish structure according to an embodiment of the present invention; FIG. FIG. 2 is a perspective view of a parting material used in the floor covering structure of FIG. 1;

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, but the present invention is not limited to this embodiment.

FIG. 1 shows a partial cross-section of a floor finishing structure that is one embodiment of the present invention. In the floor finishing structure 1, a floor finishing material 4 made of a synthetic resin sheet is laid on a floor portion 3 having a drainage ditch 2. - 特許庁A step 6 for placing a gutter cover is provided inside the upper end of the drainage ditch 2 , and a metal gutter cover receiving frame 7 is arranged along the step 6 . is fixed to the rising portion 6-1 of the.

A groove 9 is formed in the floor adjacent to the groove lid receiving frame 7 . The recessed groove 9 is positioned above the fixing means 8 that fixes the groove lid receiving frame 7 to the rising portion 6-1 of the step 6. As shown in FIG. A groove 9 is formed in the floor around the groove lid support frame with a substantially constant depth. Since the recessed groove 9 is located above the fixing means 8, after fixing the groove lid receiving frame 7 to the rising portion 6-1 of the step 6, the floor portion 3 of the portion in contact with the outer side surface of the rising edge of the groove lid receiving frame 7 is removed. When forming the concave groove 9 by cutting, the fixing means 8 can be easily formed without becoming an obstacle.

In FIG. 1, a parting member 5 is arranged between the groove 9 and the floor covering 4 . The parting material 5 has a joint piece 5-1 to be joined to the end of the floor finishing material 4, and an insertion piece 5-2 to be inserted into the recessed groove 9, and is made of synthetic resin with a substantially L-shaped cross section. It is an angle material made by The joint formed between the parting material 5 and the groove lid receiving frame 7 is filled with a bonding material 10, the bonding material 10 is also filled inside the groove 9, and the insertion piece 5-2 is filled with the groove. 9 is fixed inside. The joint piece 5-1 of the floor finishing material 4 and the parting material 5 is fixed to the floor 3 with an adhesive (not shown), and the joint piece 5-1 of the end of the floor finishing material 4 and the parting material 5 is fixed to the floor part 3. 1 is joined with a synthetic resin welding rod 11 .
In the floor finishing structure 1, the parting material 5 is fixed to the floor part 3 and the recessed groove 9 formed in the floor part 3, and the parting material 5 and the floor finishing material 4 and the parting material 5 and the groove lid receiving frame 7 are fixed. The joints are also treated to be watertight, resulting in a floor finish structure with excellent durability.

The floor finishing material 4 made of a synthetic resin sheet used in the floor finishing structure of the present invention is not particularly limited, but may be a vinyl resin sheet such as polyvinyl chloride resin, a polyolefin resin sheet such as a thermoplastic elastomer, or a rubber sheet. system sheet, and the like. Among them, a vinyl-based resin sheet is preferable from the viewpoint of workability and durability. The thickness of the floor finishing material 4 is not particularly limited, but a thickness of about 1 mm to 5 mm is usually used.

The parting material 5 is preferably made of the same synthetic resin as the floor finishing material 4 . For example, if the floor finishing material 4 is a vinyl resin sheet, the parting material 5 is also preferably made of vinyl resin.

FIG. 2 shows a perspective view of the parting member 5. The joint piece 5-1 and the insertion piece 5-2 are continuous through a corner portion 5-3, and the joint piece 5-1 and the insertion piece 5-2 are connected to each other. The insert pieces 5-2 are in an approximately vertical relationship. The joint piece 5-1 is adhesively fixed onto the floor 3, and its end and the end of the floor finishing material 4 are joined. Therefore, it is preferable that the thickness of the joint piece 5-1 is the same as the thickness of the floor finishing material 4. FIG.
The insertion depth b of the insertion piece 5-2 is preferably equal to or smaller than the depth of the groove 9. FIG. The insertion depth b is preferably about 5 mm to 15 mm. It is preferable that the thickness a of the insertion piece 5-2 is appropriately set according to the insertion depth. The ratio b/a of the insertion depth b of the insertion piece to the thickness a of the insertion piece is preferably 3.0 or more and 7.0 or less. If it is less than 3.0, the insertion piece 5-2 may not have sufficient bonding strength to the groove 9, resulting in poor durability. 5-2 may not fit.

Also, the joining piece 5-1 and the insertion piece 5-2 of the parting member 5 can be used as one another. For example, the thickness of the joining piece 5-1 is the thickness of the floor finishing material 4', and the thickness of the insertion piece 5-2 is the thickness of the floor finishing material so as to correspond to two different thicknesses of the floor finishing materials 4' and 4''. By setting the thickness of the material 4'' to be the same as that of each floor finishing material 4, the parting material 5 can correspond to any floor finishing material. In this case, the width c of the joining piece 5-1 is preferably the same as the insertion depth b of the insertion piece 5-2.

The floor 3 in FIG. 1 is made of mortar or concrete, and the groove 9 is formed by cutting the floor 3 with a diamond cutter or the like. The recessed groove 9 is formed so as to surround the groove lid receiving frame 7 . The groove 9 preferably has a depth of about 5 mm to 15 mm and a width of about 3 mm to 7 mm. When the insertion piece 5-2 of the parting member 5 is inserted into the groove 9, a suitable gap is provided, so that the groove 9 can be easily filled with a bonding material 10 such as a sealing material. When the insertion piece 5-2 of the parting member 5 is inserted after filling the inside with the bonding material 10, the bonding material 10 can sufficiently spread between the inner surface of the groove 9 and the insertion piece 5-2. .

As the joint material 10 to be filled in the inside of the groove 9 and the joint formed between the parting material 5 and the groove lid receiving frame 7, the joint piece 5-1 of the floor finishing material 4 or the parting material 5 is attached to the floor 3. An adhesive similar to the fixing adhesive may be used, or a separate elastic sealing material such as a sealing material or a caulking material may be used. The elastic sealing material, which has moderate elasticity even after construction, can relieve stress when an external force is applied to the joint portion due to walking or the like, and the shrinkage strain during hardening is small. It is preferable because a gap is less likely to occur at the boundary between Specifically, the cured bonding material 10 preferably has a Shore hardness of HAD40 to HAD80, more preferably HAD50 to HAD70, measured according to JIS K7215. The adhesive usually has a HAD of 90 or more (HDD of 20 or more). Acrylic resins, epoxy resins, urethane resins, etc. can be used as adhesives, and acrylic resins, urethane resins, acrylic urethanes, silicones, modified silicones, etc. can be used as elastic sealing materials. The joining material 10 can also be applied or filled inside the recessed groove 9 to fix the insertion piece 5 - 2 of the parting member 5 inside the recessed groove 9 .

The end of the floor finishing material 4 and the end of the joint piece 5-1 of the parting material 5 are preferably resin-welded with a synthetic resin welding rod 11. As shown in FIG. The welding rod 11 is preferably made of the same material as the floor finishing material 4 and the parting material 5, such as vinyl resin, polyolefin resin, and rubber. In the welding method using the welding rod 11, a notch groove is usually provided in the butted portion of the sheet ends, and after welding is performed while heating the welding rod with a welding machine, the excess portion of the welding rod is cut. and remove it. In addition to the welding rod, the end of the floor finishing material 4 and the end of the joining piece 5-1 of the parting material 5 can be welded using a seam liquid. Higher watertightness can be obtained by resin welding using the welding rod 11 .

The fixing means 8 for fixing the groove lid receiving frame 7 to the rising portion 6-1 of the step 6 may be screws or bolts as shown in FIG. It may be an anchor that is embedded during formation.

Next, a construction method for the floor finishing structure of the present invention will be described.
A groove is formed in the floor made of mortar or concrete using a diamond cutter or the like so as to surround the groove lid receiving frame placed on the step formed inside the upper part of the drainage groove. At this time, the recessed groove is formed to have a substantially constant depth so that the recessed groove is arranged above the fixing means embedded for fixing the groove lid receiving frame to the wall portion of the step. As a specific example, when using a parting member having an insertion piece with a thickness a of 2 mm and an insertion depth b of 10 mm, a concave groove with a depth of 15 mm and a width of 5 mm is formed around the groove lid receiving frame. After applying bonding material to the groove and applying adhesive to the floor, insert the parting material that has been cut to fit the drain in advance and insert the parting material into the groove. to the floor. The joint material is also filled tightly in the joint between the corner part of the parting material and the groove lid receiving frame. A floor covering is laid and adhered to the surrounding floor, and the joining piece of the parting material and the edge of the floor covering are joined.

In the floor finishing structure shown in FIG. 1, as a method for joining the joint piece of the parting material and the end of the floor finishing material, first, the part of the floor finishing material 4 that overlaps the joint piece 5-1 of the parting material 5 is cut. Then, the end portion of the joining piece 5-1 of the parting material 5 and the end portion 4-1 of the floor finishing material 4 are butted against each other. A groove is formed on the surface of the joint portion between the butted joint piece 5-1 of the parting material 5 and the end portion 4-1 of the floor finishing material 4 with a special tool. The welding rod 11 is welded to the groove while being heated by a hot air welder. After welding, the welding rod 11 protruding from the surfaces of the floor finishing material 4 and the parting material 5 is cut off so that the floor finishing material 4 and the parting material 5 are finished without a step.

According to the present invention, it is possible to provide a floor finishing structure excellent in durability and workability in a floor portion having drains, and can be suitably used as a floor finishing structure for kitchens, bathrooms, and the like.

1 Floor finishing structure 2 Drain 3 Floor 4 Floor finishing material 4-1 End 5 Parting material 5-1 Joint piece 5-2 Insertion piece 5-3 Corner 6 Step 6-1 Rise 6-2 Bottom 7 Groove lid receiving frame 8 Fixing means 9 Groove 10 Joining material 11 Welding rod

Claims (4)

a floor finishing material made of a synthetic resin sheet laid on a floor having a drain;
a synthetic resin parting material disposed adjacent to the end of the floor finishing material and the drain,
The drainage ditch is provided with a step for placing a ditch cover inside the upper end thereof, and a ditch cover receiving frame is installed on the step and fixed to the rising portion of the step by a fixing means, and the parting material is the floor. and an insertion piece inserted into a groove formed in the floor adjacent to the groove lid receiving frame, wherein the groove corresponds to the fixing means. Floor finish structure formed above the position of The floor finishing structure according to claim 1, wherein a ratio b/a of the insertion depth b of the insertion piece to the thickness a of the insertion piece is 3.0 or more and 7.0 or less. 3. The floor finishing structure according to claim 1, wherein said insert piece is fixed to said concave groove with a bonding material. The floor finishing structure according to any one of claims 1 to 3, wherein the floor finishing material and the joint piece are resin-welded.

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