JP2017002480A - Floor coating structure - Google Patents

Abstract

To provide a floor covering structure in which a synthetic resin covering material covering a concrete floor having a step at an end portion does not swell with water vapor or water released from the concrete floor. A floor covering structure in which a stepped concrete floor 1 is covered with a synthetic resin covering material 4 through a ventilating water-permeable layer 3, and the step side end portion of the concrete floor 1 has a rising portion 6a and its rising portion 6a. A long member covered with a horizontal portion 6b of a long member 6 having an inverted L-shaped cross section having a horizontal portion 6b continuous from the upper end, and the stepped surface 1a of the concrete floor 1 is placed close to the stepped surface 1a. 6, a floor covering structure in which the step-side edge of the synthetic resin covering material 4 and the edge of the horizontal portion 6 b of the long member 6 are joined in a watertight manner. Water vapor or water released from the concrete floor 1 passes through the inside of the ventilation layer 3 and moves downward with the gap between the rising portion 6c and the stepped surface 1a as a discharge passage 7a, and a discharge port 7b at the lower end of the discharge passage 7a. Therefore, the covering material 4 is not swollen. [Selection] Figure 2

Description

  In the present invention, a concrete floor having a step at the end, such as a corridor with drainage grooves, a landing hall or corridor facing a descending staircase, or a soil that is one step higher than the ground level, is made of a synthetic resin. The present invention relates to a floor covering structure coated with a covering material, and more particularly to a floor covering structure improved so as not to swell in a synthetic resin covering material.

  Rainwater and groundwater easily penetrate into concrete floors in apartment buildings (especially concrete floors on the ground floor) and concrete floors in detached houses, and the permeated water is released from the floor as water vapor. When covering a concrete floor with a synthetic resin covering material, there is a problem that water vapor accumulates between the synthetic resin covering material and the floor surface, and the synthetic resin covering material is swollen.

  As a technique for preventing the swelling of such a synthetic resin covering material, for example, in a sheet waterproofing method, a synthetic resin waterproof sheet is stretched without using an adhesive on the concrete base, and along the rising portion of the concrete base. The degassing opening is opened at the rising portion of the waterproof sheet that has been raised up, and the degassing opening is covered with a deaeration sheet piece provided with a number of fine ventilation holes, and a presser plate having a plurality of ventilation holes By fixing the deaeration sheet piece and covering with a deaeration sheet from above, a method of preventing the expansion of the waterproof sheet by degassing water vapor and other volatile components released from the concrete substrate Known (Patent Document 1).

JP-A-6-221750

  In the construction method of Patent Document 1, water vapor and other volatile components that volatilize from the concrete base are discharged to the outside from the deaeration port at the rising portion of the waterproof sheet, so that the volatile components accumulate between the concrete base and the waterproof sheet. It is possible to prevent swelling of the waterproof sheet.

  However, if a deaeration port is formed at the rising portion of the waterproof sheet as in the method of Patent Document 1, for example, water that oozes from the surface of the concrete base or water that is liquefied from water vapor due to a temperature drop is degassed. There is a problem that the waterproof sheet swells due to accumulation between the concrete base and the waterproof sheet without being discharged from the mouth.

  Moreover, since the rain vent etc. may infiltrate from a deaeration port when the deaeration port is formed in the rising part of a waterproof sheet like the construction method of patent document 1, a deaeration port is a fine ventilation hole. Is covered with a large number of deaeration sheet pieces, and the deaeration sheet piece is fixed with a presser plate having a plurality of vent holes, and then covered with a deaeration sheet to prevent water from entering. In addition, in order to ensure a sufficient water vapor discharge amount, there has been a problem in that a plurality of deaeration ports must be provided and the above complicated work process must be repeated. In addition, there was a problem that a plurality of vent holes were conspicuous and the aesthetic appearance of the building was impaired.

  The present invention has been made to cope with the above-mentioned problems, and the problem to be solved is that the water vapor or water released from the concrete floor having a step at the end is made of a synthetic resin that covers the concrete floor. Since it is discharged to the outside so that it does not collect with the coating material, it is possible to prevent swelling of the synthetic resin coating material, and a sufficient amount of water vapor and water can be discharged in one work process. It is an object of the present invention to provide a floor covering structure that is excellent in workability because a discharge port that can be secured is easily formed, and that the discharge port is not conspicuous at all and does not impair the beauty of the building.

  In order to solve the above problems, a floor covering structure according to the present invention is a floor covering structure in which a stepped concrete floor is covered with a synthetic resin covering material through a ventilation water-permeable layer, and the step side end of the concrete floor The portion is covered with a horizontal portion of a long member having an inverted L-shaped cross section having a rising portion and a horizontal portion continuous from its upper end through a ventilation water passage layer. It is covered with the rising part of the long member along the surface, and the step side edge of the synthetic resin covering material and the edge of the horizontal part of the long member are watertightly joined. To do.

In the floor covering structure of the present invention, it is desirable that a thin piece is provided at the side end of the horizontal portion of the long member, and the thin piece is sandwiched between the synthetic resin covering material and the ventilation water-permeable layer. .
Further, it is desirable that a concave groove is provided on the side edge of the horizontal portion of the long member, and the synthetic resin is filled between the concave groove and the synthetic resin coating material.
Moreover, it is desirable that the rising part of the long member and the step surface of the concrete floor are joined with a double-sided adhesive tape.

  In the floor covering structure of the present invention, the gap between the rising portion of the long member along the step surface of the concrete floor and the step surface of the concrete floor becomes the discharge passage, and the lower end of this discharge passage (the rising portion of the long member) The gap between the lower end and the stepped surface of the concrete floor) becomes a discharge port that opens downward. Therefore, water vapor or water released from the concrete floor penetrates into the ventilation layer and moves through the layer and is discharged from the downward outlet through the discharge passage. During this period, water vapor and water do not accumulate, and swelling of the synthetic resin coating material due to the pressure of water vapor and water can be prevented. In addition, even in the case of so-called rain-split concrete floors where rainwater falls, rainwater flows back through the discharge passage from the downward discharge port and enters between the concrete floor and the synthetic resin coating material, which may cause swelling. Never become.

Further, in the floor covering structure of the present invention, the step side edge of the synthetic resin covering material and the edge of the horizontal portion of the long member are joined in a watertight manner, so that rainwater and irrigation water are synthesized from this joined portion. It does not enter the back side of the resin coating and cause swelling.
Furthermore, the downward discharge port formed between the lower end of the rising portion of the long member and the step surface of the concrete floor is a discharge port having a large slit-like opening area over the entire length of the lower end of the rising portion, Since a sufficient discharge amount of water vapor or water can be ensured, swelling of the synthetic resin coating material due to a shortage of discharge amount can be reliably prevented.
And this discharge port and the discharge passage above it are in the state where the rising part of the long member with the inverted L-shaped cross section is along the step surface of the concrete floor, Since it can be easily formed in one process (covering step on the step side of the concrete floor with a long member) that covers the horizontal part of the long member, the work efficiency is high and the workability is excellent. Moreover, since this outlet is difficult to see from the outside and is not conspicuous at all, the appearance of the building is not impaired.

In the floor covering structure of the present invention, a thin piece is provided at the side edge of the horizontal portion of the long member, and the thin piece is sandwiched between the synthetic resin covering material and the ventilating water layer. There is an advantage that the fixing property of the member is improved, and the watertightness between the step side edge of the synthetic resin coating material and the edge of the horizontal portion of the long member is also improved.
In addition, a groove is provided on the side edge of the horizontal portion of the long member, and welding using a synthetic resin welding rod or a synthetic resin adhesive or sealing is provided between the groove and the synthetic resin coating. If the synthetic resin is filled by adhesive bonding using a material or welding using a solvent (solvent alone or a solvent in which a synthetic resin is dissolved), the step side edge of the synthetic resin coating and the long member In addition to improving the joining workability with the edge of the horizontal portion, there is an advantage that the water tightness of the joining portion and the fixing property of the long member are improved.
Furthermore, when the rising part of the long member having an inverted L-shaped cross section and the stepped surface of the concrete floor are joined with a double-sided adhesive tape, it is possible to prevent problems such as rising of the rising part of the long member. The double-sided pressure-sensitive adhesive tape serves as a spacer, and a gap between the rising portion of the long member and the step surface can be secured.

It is a fragmentary perspective view of the floor covering structure concerning one embodiment of the present invention. It is a fragmentary sectional view of the same floor covering structure. It is a fragmentary sectional view which shows the deformation | transformation aspect of the same floor covering structure. It is a fragmentary sectional view showing other modifications of the floor covering structure. It is a perspective view of the elongate member of a cross-section inverted L shape used for the floor covering structure of this invention. It is sectional drawing which shows the other example of the elongate member of a cross-section reverse L shape. It is sectional drawing which shows the further another example of the elongate member of a cross-section reverse L shape. It is sectional drawing which shows the further another example of the elongate member of a cross-section reverse L shape. It is a fragmentary sectional view of the floor covering structure concerning other embodiments of the present invention. It is a fragmentary perspective view which turns over and shows the long member of a cross-section inverted L character shape used for the embodiment. It is a fragmentary sectional view of the floor covering structure concerning other embodiments of the present invention. It is a top view of the floor covering structure concerning other embodiments of the present invention. It is AA sectional view taken on the line of FIG.

  Hereinafter, embodiments of the floor covering structure of the present invention will be described with reference to the drawings.

  1 is a partial perspective view of a floor covering structure according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view of the floor covering structure, FIG. 3 is a partial cross-sectional view showing a modification of the floor covering structure, and FIG. FIG. 5 is a perspective view of a long member having an inverted L-shaped cross section used in the floor covering structure of the present invention.

  The floor covering structure of the embodiment shown in FIG. 1 and FIG. 2 exemplifies the covering structure of a concrete floor in a corridor (a corridor in which a drainage groove is formed on a side end) of a common part in an apartment house or a building. The concrete floor 1 of this corridor has a step at the side end, and continues to the drainage groove 2 that is one step lower through the step surface 1a. The height of the step surface 1a varies in some places, but in the case of the concrete floor 1 in the hallway connected to the drainage groove 2 as in this embodiment, the height of the step surface 1a is generally about 1 to 10 cm.

  A ventilation water-permeable layer 3 is laid on the upper surface 1b of the concrete floor 1, and is adhered to the upper surface 1b with an adhesive (not shown). The adhesive is applied to the upper surface 1b of the concrete floor 1 by using a comb-shaped iron so that a number of protrusions of the adhesive are formed at a distance from each other, thereby releasing water vapor released from the upper surface 1b of the concrete floor 1. It is desirable that water and water easily penetrate into the ventilation layer 3 from between the protruding strips of the adhesive.

  In this embodiment, as shown in FIG. 2, the ventilation water-permeable layer 3 is laid and bonded to the inside from the side edge on the step side of the concrete floor 1 by about 5 to 25 mm, but as shown in FIG. 3. Further, the ventilation water-permeable layer 3 may be laid and bonded to the side edge on the step side of the concrete floor 1, or the end of the ventilation water-permeable layer 3 is bent further downward as shown in FIG. The floor 1 may be laid and bonded to the upper edge of the stepped surface 1a.

  As shown in FIG. 2, a synthetic resin covering material 4 is laid on the upper surface of the vent water-permeable layer 3 except for the step side end portion of the concrete floor 1, and the aerated water-permeable layer 3 with an adhesive (not shown). It is glued to. As shown in FIG. 2, the other end of each of the ventilation water-permeable layer 3 and the synthetic resin covering material 4 (the side end opposite to the step side) is 5 to 25 mm inward from the other end of the concrete floor 1. To some extent, it is sealed with a sealing material 5. Although not shown, the front and rear ends of the ventilating water-permeable layer 3 and the synthetic resin covering material 4 are similarly sealed with the sealing material 5.

As shown in FIG. 1 and FIG. 2, the step side end of the concrete floor 1 is provided with a long member 6 having an inverted L-shaped cross section, that is, a rising portion 6a as shown in FIG. The horizontal portion 6b of the long member 6 having an inverted L-shaped cross section provided with a horizontal portion 6b continuous from the upper end thereof is bonded to the ventilation layer 3 with an adhesive (not shown). It is fixed. And the level | step difference surface 1a of the concrete floor 1 is coat | covered by the rising part 6a of the elongate member 6 along the said level | step difference surface 1a, and the clearance gap between this rising part 6a and the level | step difference surface 1a of the concrete floor 1 is carried out. A discharge passage 7a is formed, and a lower end of the discharge passage 7a (a gap between the lower end of the rising portion 6a and the stepped surface 1a of the concrete floor 1) is a discharge port 7b that opens downward. Accordingly, the discharge port 7b is a discharge port having a large slit-like opening area over the entire length of the rising portion 6a of the long member 6, and can secure a sufficient discharge amount of water vapor or water.
The distance between the step surface 1a of the concrete floor 1 and the rising portion 6a of the long member 6 along the step surface 1a is preferably about 1 to 10 mm. As long as the discharge passage 7a can be moved downward by pressure and discharged from the discharge port 7b, the rising portion 6a may substantially contact the step surface 1a.

Is the step-side edge of the synthetic resin covering material 4 and the edge of the horizontal portion 6b of the long member 6 watertightly joined by the welded synthetic resin 8, and is the joint part flush? Alternatively, the upper surface of the horizontal portion 6 b of the long member 6 is slightly lower than the upper surface of the synthetic resin coating material 4.
The joint between the step side edge of the synthetic resin coating 4 and the side edge of the horizontal portion 6b of the long member 6 is replaced with a sealing resin or a dope cement (thermoplastic resin) instead of the synthetic resin 8 for welding. Or a seam solution (thermoplastic resin solvent) or the like.

The ventilation water-permeable layer 3 laid and bonded to the upper surface 1b of the concrete floor 1 absorbs water vapor and water released from the upper surface 1b of the concrete floor 1, and moves the water vapor and water in a plane within its thickness. Synthetic resin fiber nonwoven fabrics, continuous foam resin sheets, synthetic resin nets, and the like that can be used are all usable, and among these, synthetic resin fiber nonwoven fabrics that are relatively inexpensive and excellent in handleability are preferably used. In particular, polyester resin fiber nonwoven fabrics and polypropylene resin fiber nonwoven fabrics having a measured thickness of 0.5 to 3 mm and a measured basis weight of 200 to 300 g / m ² are excellent in air permeability and are urethane resin one-component type or epoxy. The resin-based two-component floor adhesive is excellent in adhesiveness, has a long sticking time, and is easy to handle (workability).

  Further, as the synthetic resin covering material 4 laid and adhered on the ventilating water-permeable layer 3, a long single-layer sheet made of a thermoplastic synthetic resin such as a soft or semi-rigid vinyl chloride resin or an olefin resin. Alternatively, a multilayer sheet is used, and an anti-slip irregularity formed on the surface or an ornamental pattern is preferably used. The thickness of the synthetic resin covering material 4 is not limited, but is preferably about 1 to 6 mm.

As shown in FIGS. 2 and 5, the long member 6 provided at the step-side end of the concrete floor 1 has an inverted cross section L provided with a rising portion 6 a and a horizontal portion 6 b that extends from the upper end to a right angle or a substantially right angle. A letter-shaped member made of metal or synthetic resin is used. Among them, water-tight joining with the synthetic resin coating 4 is possible by resin welding or the like, and the depression angle (bending angle) between the rising portion 6a and the horizontal portion 6b is adjusted, or the concrete floor 1 is not flat. The long member 6 made of a thermoplastic synthetic resin such as a vinyl chloride resin or an olefin resin having flexibility, which can relatively easily adjust the waviness of the stepped surface 1a and the like, is preferably used.
The long member 6 is preferably bent at a right angle or a substantially right angle as shown in FIG. 5 from the beginning. However, a synthetic resin or metal strip is bent at a right angle or a substantially right angle at the construction site, and rises. The part 6a and the horizontal part 6b may be formed.

Although the size of the long member 6 is not limited, the length L of the long member 6 is preferably about 1 to 2 m in consideration of workability and transportability. However, when the elongated member 6 is produced by bending the strip at the construction site, the length of the strip is about 5 to 10 m, and the strip is made into a scroll in consideration of carrying and work efficiency. Good.
In addition, the width W (inner dimension) of the horizontal portion 6b is about 50 to 150 mm, and the height H (inner dimension) of the rising portion 6a is about 5 to 100 mm in consideration of the height of the stepped surface 1a of the concrete floor 1. It is preferable to do. In addition, when chamfering or rounding is applied to the upper end portion (corner of the floor surface) of the stepped surface 1a that continues from the floor surface, the rising portion 6a may be provided at a height that covers the chamfering or rounding region. preferable.

The thickness of the long member 6 (the thickness of the rising portion 6a and the horizontal portion 6b) is about 1 to 5 mm, and within this thickness range, the long length having the same thickness as the synthetic resin covering material 4 or a little thinner. It is desirable to use the member 6. When the long member 6 having the same thickness as that of the synthetic resin coating material 4 is used, the joint portion between the step side edge of the synthetic resin coating material 4 and the side edge of the horizontal portion 6 b of the long member 6 is When the long member 6 having a thickness slightly smaller than the thickness of the synthetic resin coating material 4 is used, the long member does not crawl or get caught at the joint portion. 6 is slightly lower than the height of the upper surface of the synthetic resin coating material 4, so that the upper surface of the synthetic resin coating material 4 exceeds the long member 6 when wetted with water. It becomes easy to flow into the drainage groove 2, and there is an advantage that the drainage property is improved and the dust sweeping property is improved.
In addition, when the surface of the synthetic resin coating material 4 has anti-slip irregularities, it is desirable to improve drainage using a long member 6 having a thickness slightly smaller than the thickness of the concave portion. Further, in the long member 6, the rising portion 6a and the horizontal portion 6b have the same thickness, but when the rising portion 6a and the horizontal portion 6b have different thicknesses, the thickness of the horizontal portion 6b is the thickness of the synthetic resin coating material 4. It is desirable to improve drainage and sweepability by using a slightly thinner elongated member.

The surface of the rising portion 6a and the horizontal portion 6b of the long member 6 may be provided with a region having a color tone different from that of the synthetic resin coating material 4, and if such a region is provided, the presence of a step in the concrete floor 1 is indicated. Since it is clearly visible, there is no fear of stepping off the step and falling into the drainage groove 2, and when providing a long member on the step of the concrete floor of the landing that leads to the descending stairs as in the embodiment described later, The risk of falling off the steps and falling to the down stairs can be prevented.
Furthermore, the rising portion 6a and the horizontal portion 6b of the long member 6 may be provided with a region containing a phosphorescent material that emits phosphorescence. When such a region is provided, the concrete floor 1 of the concrete floor 1 can be obtained even in the dark due to phosphorescence. Since the presence of the step can be clearly seen, there is an advantage that the above effect is more remarkably exhibited and the safety is further improved.
Further, an anti-slip unevenness may be provided on the surface of the horizontal portion 6b of the long member 6 so as to prevent a fall accident due to slip.

  As an adhesive for adhering the ventilation water-permeable layers 3 and 3a to the upper surface 1b of the concrete floor 1 and adhering the synthetic resin covering material 4 and the long member 6 to the ventilation water-permeable layers 3 and 3a, for example, urethane resin Component type and epoxy resin type two-component water resistant floor adhesives are preferably used, and acrylic, modified silicone type, rubber type and other floor adhesives are also used.

  Further, as the sealing material 5 for sealing the side end (side end opposite to the step side) and the front and rear ends of the synthetic resin coating material 4, urethane-based, epoxy-based, modified silicone-based, silicon-based, polysulfide-based, Sealing materials such as acrylic, SBR, and butyl rubber are used. Among these, the urethane-based sealing material is a general-purpose material that hardly hangs down immediately after the casting even when it is placed on the lower end surface of the rising portion 6a of the long member 6 as in the embodiment shown in FIG. It is particularly preferably used from the viewpoint of being easy to handle. As shown in FIGS. 2 and 11, this sealing material 5 is preferably placed and sealed so as to form a triangular seal having a right-angled triangular cross section.

The floor covering structure of this embodiment is simply and efficiently constructed in the following manner.
First, using a comb iron, the floor adhesive is applied to the upper surface 1b of the concrete floor 1 in the corridor, and the ventilation water-permeable layer 3 is laid and bonded and fixed thereon.
Next, the floor adhesive is applied to the upper surface of the ventilating water-permeable layer 3 (it may be applied with a comb or a solid iron), and the long member 6 having an inverted L-shaped cross section is raised. The horizontal portion 6b of the elongate member 6 is stacked on the ventilation water-permeable layer 3 at the step side of the concrete floor 1 while adhering and fixing the portion 6a along the step surface 1a of the concrete floor 1 in close proximity. .
Then, the synthetic resin coating material 4 is laid and bonded and fixed on the ventilation water-permeable layer 3 except for the step side edge, and the step side edge of the synthetic resin coating material 4 and the long member 6 are fixed. The edge of the horizontal portion 6b is joined in a watertight manner by means such as resin welding (welding with synthetic resin 8).
Finally, the side end opposite to the step side of the synthetic resin covering material 4 and the front and rear ends are sealed with the sealing material 5 to complete the floor covering structure.

In the floor covering structure configured as described above, water vapor or water released from the upper surface 1b of the concrete floor 1 permeates the ventilation water-permeable layer 3 and moves through the layer, and the stepped surface 1a of the concrete floor 1 is long. It discharges | emits from the downward discharge port 7b through the discharge passage 7a between the rising parts 6a of the member 6. FIG. Since the discharge passage 7a and the downward discharge port 7b have a large slit-like opening area over the entire length of the rising portion 6a, a sufficient discharge amount of water vapor or water can be ensured. Accordingly, since the water vapor and water are sufficiently discharged and do not accumulate between the upper surface 1b of the concrete floor 1 and the synthetic resin covering material 4, the swelling of the synthetic resin covering material 4 due to the pressure of water vapor or water is surely prevented. can do.
Further, since the discharge port 7b faces downward, even in the case of the so-called rain-split concrete floor 1 where rainwater falls, the rainwater flows backward through the discharge passage 7a from the discharge port 7b and the synthetic floor covering 1 and the synthetic resin. No intrusion occurs between the two and causes blistering. And since the step side edge of the synthetic resin coating material 4 and the edge of the horizontal portion 6b of the elongate member 6 are joined in a watertight manner, rainwater and irrigation water from the joint portion of the synthetic resin coating material 4 It does not enter the back side and cause blistering.
Further, the discharge port 7b and the discharge passage 7a on the upper side thereof are provided on the step side end portion of the concrete floor 1 with the rising portion 6a of the long member 6 having an inverted L-shaped cross section along the step surface 1a of the concrete floor 1. Can be easily formed by one process (covering step on the side of the step of the concrete floor with the long member 6) by covering the surface with the horizontal portion 6 b of the long member 6 through the ventilation layer 3. The discharge port 7b opened downward between the lower end of the rising portion 6a of the long member 6 and the stepped surface 1a of the concrete floor 1 is difficult to see from the outside. Because it doesn't stand out at all, it doesn't detract from the beauty of the building.

  In the floor covering structure of the present invention, instead of the long member 6, long members 61, 62, and 63 as shown in FIGS. The part may be covered.

  A long member 61 having an inverted L-shaped cross section shown in FIG. 6 is obtained by previously bonding a strip-shaped air-permeable layer 3a to the back surface of the horizontal portion 6b with an adhesive (not shown) over the entire length. Such a long member 61 is formed by adhering the belt-like vent water-permeable layer 3 a to the upper surface 1 b of the step side end of the concrete floor 1, so that the long member 61 is installed before the aeration water-permeable layer 3 is laid and bonded. 61 can be attached to the step side end of the concrete floor 1. As shown in the figure, the belt-shaped vent water-permeable layer 3a is slightly wider than the horizontal portion 6b, and is adhered so that the side end of the vent water-permeable layer 3a protrudes from the side end of the horizontal portion 6b. The joint between the side end of the portion 6b and the stepped side end of the synthetic resin coating material 4 and the butted end of the vent water-permeable layer 3a and the vent water-permeable layer 3 should not overlap each other. It is desirable from the viewpoint of strength and water tightness.

The long member 62 shown in FIG. 7 extends the thin piece 6c from the lower part of the side end of the horizontal part 6b over the entire length of the horizontal part 6b, and a strip-shaped ventilation water layer on the back of the horizontal part 6b and the thin piece 6c. 3a is bonded, and a plurality of convex portions (spacers) 6d are formed on the back surface of the rising portion 6a at intervals in the length direction of the rising portion 6a.
Such a long member 62 is formed by adhering and fixing the strip-shaped vent water-permeable layer 3a to the upper surface 1b of the step side end of the concrete floor 1 before the aerated water-permeable layer 3 is laid and bonded. The member 62 can be attached to the step-side end of the concrete floor 1, and the thin piece 6c is sandwiched between the step-side end edge of the synthetic resin coating material 4 and the belt-like vent water-permeable layer 3a, and the horizontal portion 6b Dope cement or seam liquid is injected from the joint where the side ends and the side ends of the synthetic resin coating material 4 are abutted, and the upper surface of the thin piece 6c and the back surface of the edge of the synthetic resin coating material 4 are welded and integrated. Thus, the fixing strength of the long member 62 and the water tightness of the joint can be enhanced. And the space | interval of the rising part 6a and the level | step difference surface 1a can be kept constant by making the convex part 6d of the back surface of the rising part 6a contact | abut on the level | step difference surface 1a of a concrete floor. In addition, since the water vapor | steam and water which move below the discharge channel | path 7a pass through between the some convex parts 6d, and are discharged | emitted from the discharge port 7b, there is no worry that discharge | emission of water vapor | steam and water is prevented.

The thickness of the thin piece 6c is preferably about 0.5 to 1.5 mm, and the width (extended dimension) of the thin piece 6c is preferably about 10 to 150 mm. In this way, the side of the long member 62 on the horizontal portion 6b side is preferable. Since a large step is not formed at the joint between the end and the step side end of the synthetic resin coating material 4, and the welding area between the upper surface of the thin piece 6c and the back surface of the edge of the synthetic resin coating material 4 is large, The fixing strength of the long member 6 and the water tightness of the joint can be sufficiently increased.
Further, the height of the convex portion 6d is preferably about 1 to 10 mm, and with such a height, the interval between the rising portion 6a and the stepped surface 1a is about 1 to 10 mm as described above. Sufficient discharge of water vapor and water can be ensured.

8 has a thin piece 6c extending from the lower part of the side end of the horizontal part 6b over the entire length of the horizontal part 6b, and a concave groove 6e (made of synthetic resin) on the upper part of the side part of the horizontal part 6a. A concave groove lacking a groove side wall on the covering material 4 side) is formed over the entire length of the horizontal portion 6a, and a plurality of inclined contact portions 6g inclined at 45 ° on the back side of the bent corner portion 6f are formed on the long member 63. It is formed at intervals in the length direction, and the surface of the lower end edge of the rising portion 6a is a convex curved surface 6h.
Such a long member 63 is configured such that the sloped contact portion 6g is applied to the corner portion of the step side end of the concrete floor 1 or the step side end of the ventilation water-permeable layer 3 so that the rising portion 6a and the step surface become the drainage passage 7a. The gap with 1a can be kept constant. And the thin piece 6c is pinched | interposed between the edge of the synthetic resin coating | covering material 4 and the ventilation water-permeable layer 3, dope cement and seam liquid are inject | poured from a junction part, and the upper surface of the thin piece 6c and the back surface of the synthetic resin coating material 4 And welding the concave groove 6e with synthetic resin or dope cement to join the side end of the horizontal portion 6b of the long member 63 and the step side end of the synthetic resin covering material 4 so as to The fixing strength of the scale member 63 and the water tightness of the joint can be further increased. Moreover, since the surface of the lower end edge of the rising part 6a is the convex curved surface 6h, the lower end edge of the rising part 6a is hard to bend.

  FIG. 9 is a partial cross-sectional view of a floor covering structure according to another embodiment of the present invention, and FIG. 10 is a partial perspective view showing a long member having an inverted L-shaped cross section used in the embodiment.

In the floor covering structure of the embodiment shown in FIG. 9, the rising portion 6 a of the long member 6 having an inverted L-shaped cross section is placed close to the step surface 1 a of the concrete floor 1, and the rising portion 6 a is formed by the double-sided adhesive tape 9. By sticking to the stepped surface 1a, a gap corresponding to the thickness of the double-sided adhesive tape 9 is provided between the rising portion 6a and the stepped surface 1a to form a discharge passage 7b and a discharge port 7b that opens downward at the lower end thereof. doing.
The double-sided adhesive tape 9 is cut into short tape pieces in advance, and a plurality of tape pieces 9a are spaced apart in the length direction of the rising parts 6a on the back surface of the rising parts 6a of the long member 6, as shown in FIG. It is preferable to paste them. In this way, when the long member 6 is covered and fixed to the step side end of the concrete floor 1, the rising portion 6a can be easily and efficiently applied to the step surface 1a simply by pressing the rising portion 6a against the step surface 1a. Can be attached. Then, water vapor or water moving downward in the discharge passage 7a passes between the tape pieces 9a, and is undisturbed in the length direction of the rising portion 6a between the discharge port 7b (the lower end of the rising portion 6a and the stepped surface 1a). Since it is discharged from a continuously formed discharge port), there is no concern that the discharge of water vapor or water will be hindered.

As the double-sided pressure-sensitive adhesive tape 4, for example, a synthetic resin belt-like foam (thickness of about 1.0 to 5.5 mm, width of about 10 to 25 mm) such as polyethylene foam is used as a base material, and acrylic adhesive is applied to both surfaces thereof. What applied adhesives, such as an agent, is used preferably.
Further, an air-permeable double-sided pressure-sensitive adhesive tape in which an adhesive is applied to both surfaces of an air-permeable base material such as a continuous foam of synthetic resin or a nonwoven fabric of resin fiber or glass fiber is also used. Such an air-permeable double-sided pressure-sensitive adhesive tape may be affixed to the back surface of the rising portion 6a of the long member 6 in a horizontal character. Even in such a case, water vapor or water passes through the air-permeable material. Since it is discharged from the outlet 7b, there is no concern that the discharge of water vapor or water will be hindered.

  Since the other structure of the floor covering structure of the embodiment shown in FIG. 9 is the same as that of the floor covering structure of the embodiment shown in FIG. 1 and FIG. 2, the same members in FIG. Description to be omitted is omitted.

  The floor covering structure of the embodiment shown in FIG. 9 has the long member 6 rising by the double-sided pressure-sensitive adhesive tape 9 (tape piece 9a) in addition to the above-described effects provided by the floor covering structure of the embodiment shown in FIGS. The double-sided adhesive tape 9 (tape piece 9a) can serve as a spacer to prevent the portion 6a from rolling up, and the rising portion 6a of the long member 6 and the step surface 1a of the concrete floor 1 can be prevented. There is an effect that a gap can be secured.

FIG. 11 is a partial cross-sectional view of a floor covering structure according to still another embodiment of the present invention.
In the floor covering structure of the embodiment shown in FIG. 11, the lower end of the rising portion 6a of the long member 6 is triangularly sealed discontinuously in the length direction by the sealing material 5, and the portion that is not triangularly sealed A gap between the lower end of the rising portion 6a and the step surface 1a is a downward discharge port (not shown in FIG. 11).
Other configurations are the same as those of the floor covering structure of the embodiment shown in FIG. 1 and FIG. 2, so that the same reference numerals are given to the same members in FIG.

  The floor covering structure of the embodiment shown in FIG. 11 has the above-mentioned effects obtained by the floor covering structure of the embodiment shown in FIG. 1 and FIG. Since the lower end is fixed, it is possible to prevent a problem that the rising portion 6a is rolled up, and there is an effect that the gap between the rising portion 6a and the stepped surface 1a can be kept constant.

  12 is a plan view of a floor covering structure according to still another embodiment of the present invention, and FIG. 13 is a cross-sectional view taken along line AA of FIG.

  The floor covering structure of the embodiment shown in FIG. 12 and FIG. 13 shows the covering structure of the concrete floor 1 of the landing with a step (step surface 1 a) continuous to the down stairs 20, and continues to the down stairs 20. The height of the step (step surface 1a) of the concrete floor 1 is usually about 20 to 30 cm.

  The ventilation water-permeable layer 3 is laid on the upper surface (1b) of the concrete floor 1 of this landing, and is bonded with the adhesive (not shown) applied with a comb-shaped iron. And the upper surface 1b of the step side end portion of the concrete floor 1 is covered with the horizontal portion 6b of the long member 6 having an inverted L-shaped cross section through the ventilation water-permeable layer 3, and the horizontal portion 6b is An adhesive (not shown) is bonded and fixed to the step-side end of the ventilating water-permeable layer 3. The step surface 1a of the concrete floor 1 is covered with a rising portion 6a of a long member 6 along the step surface 1a so that the gap between the rising portion 6a and the step surface 1a is drainage of water vapor or water. While becoming the channel | path 7a, the lower end (gap between the lower end of the rising part 6a and the level | step difference surface 1a) of this drainage channel | path 7a becomes the downward discharge port 7b.

The synthetic resin covering material 4 is laid on the ventilation water-permeable layer 3 except for the step side end portion to which the horizontal portion 6b of the long member 6 is bonded and fixed, and the adhesive (not shown) is used. Bonded and fixed. And the step side edge of this synthetic resin coating material 4 and the edge of the horizontal part 6b of the elongate member 6 are watertightly joined by the synthetic resin 8 for welding, and further, the synthetic resin coating material 4 Is sealed with the sealing material 5 except for the joint portion of the long member 6 with the horizontal portion 6b.
Although not shown, it is desirable that the surface of the stairs 20 is covered with a floor material for stairs made of synthetic resin.

  Also in the landing floor covering structure configured as described above, water vapor or water released from the concrete floor 1 is discharged from the discharge port 7b through the ventilation water layer 3 and the discharge passage 7a, and is combined with the concrete floor 1. Since water vapor and water do not accumulate with the resin coating material 4, swelling of the synthetic resin coating material 4 due to the pressure of water vapor or water can be prevented. And even in the case of the concrete floor 1 of a rain landing, rainwater enters between the concrete floor 1 and the synthetic resin coating 4 from the downward discharge port 7b, and causes the swelling of the synthetic resin coating 4 Rainwater enters the back side of the synthetic resin coating material 4 from the watertight joint between the step side edge of the synthetic resin coating material 4 and the edge of the horizontal portion 6a of the long member 6 and the synthetic resin. It does not cause swelling of the covering material 4. Moreover, since the downward discharge port 7b is a discharge port having a large slit-like opening area over the entire length of the lower end of the rising portion 6a of the long member 6, a sufficient discharge amount of water vapor or water can be secured. Moreover, since the downward discharge port 7b is inconspicuous, the aesthetic appearance of the building is not impaired. Further, this floor covering structure is such that the step side end portion of the concrete floor 1 is elongated through the ventilating water layer 3 in a state where the rising portion 6 a of the long member 6 is along the step surface 1 a of the concrete floor 1. The discharge port 7b and the discharge passage 6a on the upper side thereof can be easily formed by one process of covering and fixing with the horizontal portion 6b of the member 6, so that the workability is excellent.

  In the case of a concrete floor in a corridor having a step (step surface) connected to the descending stairs 20 or a concrete floor between soils that is one step higher than the ground level, a synthetic resin coating is provided by adopting a floor covering structure similar to the above. Needless to say, the swelling of the material 4 can be prevented.

DESCRIPTION OF SYMBOLS 1 Concrete floor 1a Level difference surface 2 Drainage groove 3 Ventilation water layer 4 Synthetic resin coating material 5 Sealing material 6 Long member with reverse L-shaped cross section 6a Long member rising part 6b Long member horizontal part 6c Thin piece 6d Convex Part (spacer)
6e Concave groove 6g Inclined contact portion 7a Discharge passage 7b Discharge port 8 Synthetic resin 9 Double-sided adhesive tape 9a Tape piece 20 Downstairs

Claims (4)

A floor covering structure in which a concrete floor with a step is covered with a synthetic resin covering material through a ventilation water passage layer,
The step side end portion of the concrete floor is covered with a horizontal portion of a long member having an inverted L-shaped cross section having a rising portion and a horizontal portion continuous from the upper end through a ventilation water passage layer,
The step surface of the concrete floor is covered with a rising part of a long member along the step surface,
A floor covering structure characterized in that a step side edge of a synthetic resin covering material and an edge of a horizontal portion of a long member are joined in a watertight manner.   The thin piece is provided in the side edge of the horizontal part of the elongate member, and this thin piece is pinched between the synthetic resin covering material and the ventilation water-permeable layer. Floor covering structure.   A concave groove is provided on a side edge of the horizontal portion of the long member, and a synthetic resin is filled between the concave groove and the synthetic resin coating material. The floor covering structure according to 2.   The floor covering structure according to any one of claims 1 to 3, wherein the rising portion of the long member and the stepped surface of the concrete floor are joined with a double-sided adhesive tape.

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