JP6175669B2 - Stepped floor covering and its construction method - Google Patents

Description

  The present invention relates to a step covering floor material and a construction method thereof, and more specifically, a step covering floor material that can be easily bent and constructed on site according to the shape of a staircase or a floor step and the construction thereof. Regarding the method.

  The present applicant is a flooring in which the front edge of a soft polyvinyl chloride resin sheet having a convex pattern on the surface is bent downward as a flooring for a staircase (stepped covering flooring) covering each step of the staircase. An application has already been filed for a staircase floor material in which a butyl rubber-based adhesive and release paper are laminated on the entire back surface excluding the bent portion, and the bent portion is thinned and softened and bent by high-frequency heating (Patent Document 1).

  This stair flooring (step covering flooring) can be easily attached to each step of the staircase with a butyl rubber adhesive on the back, and the front edge is bent downward, making it difficult to peel off from the nose. Because it is formed of a soft vinyl chloride resin sheet with a convex pattern on the surface, it has sufficient weather resistance and anti-slip properties, and can be easily manufactured by bending into an L shape at the factory. there were.

JP-A-8-209881

  However, the soft vinyl chloride resin stair flooring (stepped covering flooring) that has been bent into an L shape at the factory as described above is reinforced so that the bent part does not deform during storage or transportation. There is a problem that the packaging cost, storage cost, transportation cost, etc. are high because it is necessary to wrap and store and transport it in a bulky container that is hard to be crushed with the material inside.

  Moreover, although the staircase flooring (stepped covering flooring) bent into an L shape at the factory is made of soft polyvinyl chloride resin that is easily deformed, There is a problem that a gap is likely to be formed between the nose and the bent portion of the floor material for staircases because it is difficult to apply the gap to the bending angle or radius of the nose (upper corner portion) without gaps. Therefore, it has been necessary to fill the gap with a filler to protect the bent portion of the staircase flooring or to relieve the pedestrian's discomfort.

  In addition, stiff flooring made of soft vinyl chloride resin (step covering flooring) is not very strong, and if it is attached to each step of a stair with a very large number of pedestrians going up and down, it will be bent to cover the nose. Since cracks and cracks may occur in the processed part, it was necessary to improve durability.

  The present invention has been made under the circumstances described above, and the problem to be solved is packaging cost and storage cost because it can be efficiently stored and transported by packaging it in a simple packaging container having a low bulk with a flat flooring material. It can save transportation costs, and can be easily folded at the construction site according to the shape of the steps of the stairs and floor and pasted without gaps. An object of the present invention is to provide a stepped covering floor material that can greatly improve durability without protecting the material, and a construction method thereof.

In order to solve the above problems, a step covering floor material according to the present invention includes an upper surface covering portion that covers the upper surface of the step portion, and an upper end corner covering band portion that is scheduled to be folded to cover the upper end corner of the step portion. A substantially flat stepped covering floor material having a drooping surface covering portion covering the drooping surface of the stepped portion, the upper end corner covering band portion scheduled to be bent is formed of a thermoplastic synthetic resin, and its thickness In the middle or lower part of the direction, a linear or thin strip-like conductive resistor is embedded over the substantially entire length of the upper end corner covering band portion to generate heat during bending and heat soften the upper end corner covering band portion . This is a substantially flat step covering floor material for bending . The “step portion” in the present invention means a portion that is raised in a step shape, and includes a step portion of a staircase or a step portion formed on a floor.

  In the step covering floor material of the present invention, the upper end corner covering band portion scheduled to be bent has a laminated structure of at least two layers, the surface layer is a soft thermoplastic synthetic resin, and the back layer or the back layer It is desirable that the intermediate layer is formed of a hard thermoplastic synthetic resin.

Moreover, the construction method of the step covering floor material according to the present invention comprises placing the upper surface covering portion of the substantially flat step covering floor material for bending according to the present invention on the upper surface of the step portion, It is characterized in that the conductive resistor in the upper corner cover strip of the flooring is heated by direct energization or induction heating, and the softened upper corner cover strip is bent along the upper corner of the step. It is.

  In the construction method of the present invention, it is desirable to press a hard flat plate against the upper corner coating strip when the conductive resistor is heated to bend the upper corner coating strip.

Like the step covering floor material of the present invention, the upper surface covering portion covering the upper surface of the step portion, the upper end corner covering band portion for covering the upper end corner of the step portion, and the drooping surface of the step portion If it is a substantially flat flooring material for folding that has a drooping surface covering part that covers the surface, it can be packaged in a simple packaging container with low bulk and can be efficiently stored and transported, so packaging costs, storage costs, and transportation costs Can be saved.
Then, the upper corner coating strip is formed of a thermoplastic synthetic resin, and the upper corner coating strip is heated at the middle or lower portion in the thickness direction over the substantially entire length of the upper corner coating strip by bending. When a linear or thin strip conductive resistor to be heat-softened is embedded, the conductive resistor is heated by direct current or induction heating based on the construction method of the present invention at the construction site, and the softened upper end corner Since the covering band portion can be bent along the upper end corner of the stepped portion, there is no gap between the stepped portion and the stepped portion covering floor, particularly between the upper end corner and the upper end corner covering band portion. Therefore, there is no need to protect the flooring by filling the gap with a filler as in the prior art, and the durability can be greatly improved without protecting the flooring with the filler.

  In addition, when the upper end corner covering band portion of the step covering floor material has a laminated structure of at least two layers and the surface layer is formed of a soft thermoplastic synthetic resin, the upper end corner covering band portion after walking is walked. The feeling is improved and the impact when a pedestrian falls is also mitigated. And when the back surface layer or the back surface layer and the intermediate layer are formed of a hard thermoplastic synthetic resin, the bending strength and durability of the upper end corner covering band portion after the bending process are improved. If the intermediate layer is made of a hard thermoplastic synthetic resin and the back layer is made of a soft thermoplastic synthetic resin, the flexible back layer will be in contact with the top corner of the step, so the step after pasting And the familiarity with the step covering floor material is improved, and the durability is further improved.

In addition, the construction method of the present invention heats the conductive resistor in the upper corner coating strip of the step covering floor material at the construction site, and attaches the heat softened upper corner coating strip to the upper corner of the step. Since the bending process is performed, the above-described effects can be obtained.
By the way, if the conductive resistor is heated to soften the upper corner cover strip, the upper corner cover strip will naturally follow the upper corner of the step due to the weight of the bottom cover portion of the step cover floor material. The bend angle and radius are not necessarily matched with those at the top corner. However, as described above, when a hard flat plate is pressed against the upper end corner covering band during bending, the upper end corner covering band is made to match the bending angle or radius of the upper end corner of the step so that no gap is generated. It is possible to bend it with certainty.

It is a top view of the step part covering flooring which concerns on one Embodiment of this invention. It is the sectional view on the AA line of FIG. FIG. 3 is an enlarged view of a portion surrounded by a circle in FIG. 2. It is explanatory drawing of the construction method of the step part covering floor material which concerns on one Embodiment of this invention, Comprising: The place which mounted the upper surface coating part of the step part covering floor material on the upper surface of the step part of a floor is shown. It is explanatory drawing of the construction method, Comprising: The place where the upper end corner coating | coated part of the step part covering floor material was bent along with the upper end corner of the step part of a floor | bed is shown. It is explanatory drawing of the construction method, Comprising: The place which adhered the step-part covering floor material which carried out the bending process to the step part of the floor with the adhesive material is shown. (A) (b) (c) is a figure explaining the point which bends the upper end corner covering belt part of a step part covering floor material along with the step part of a floor, pressing a hard flat plate.

  Hereinafter, with reference to drawings, a step covering floor material and its construction method concerning one embodiment of the present invention are explained.

  1 is a plan view of a step covering floor material according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is an enlarged view of a portion surrounded by a circle of FIG. FIG. 5 is an explanatory diagram of a method for constructing a step covering floor material according to an embodiment of the present invention, and shows a place where the upper surface covering portion of the step covering floor material is placed on the upper surface of the step portion of the floor, FIG. FIG. 6 is an explanatory view of the construction method and shows a state where the upper end corner covering portion of the step covering floor material is bent along the upper end corner of the floor step portion, and FIG. 6 is an explanatory view of the construction method. 7 (a), (b), and (c) show the step-coated flooring while pressing a hard flat plate, showing the bent step-coated flooring adhered to the floor step with an adhesive. It is a figure explaining the point which carries out the bending process of the upper-end corner covering belt | band | zone part along with the step part of a floor in order.

  The step covering floor material 1 of the embodiment shown in FIG. 1 and FIG. 2 is a floor covering that covers the step 2 of the staircase or the floor as shown in FIG. A flat upper surface covering portion 1a, a substantially flat upper end corner covering band portion 1b scheduled to be folded to cover the upper end corner 2b of the step portion 2, and a substantially flat vertical surface covering the drooping surface 2c of the step portion 2. It is a substantially flat floor material formed continuously with the covering portion 1c.

As shown in FIG. 2, the upper surface covering portion 1a, the upper end corner covering strip portion 1b, and the hanging surface covering portion 1c of the stepped portion covering flooring 1 each have a two-layer structure, and the upper surface covering portion 1a. Each of the surface layers 3a, 3b, 3c of the upper end corner covering band portion 1b and the drooping surface covering portion 1c is made of a soft thermoplastic synthetic resin.
Each of the back surface layers 4a and 4c of the upper surface covering portion 1a and the hanging surface lower surface covering portion 1c is formed of the same or different soft thermoplastic synthetic resin as the surface layers 3a, 3b and 3c. The back layer 4b of 1b is formed of a hard thermoplastic synthetic resin.

  As shown in FIG. 1 to FIG. 3, a linear or fine band-shaped conductive resistor 5 is at the upper end of the middle portion in the thickness direction of the upper end corner covering band portion 1 b, that is, at the interface between the surface layer 3 b and the back surface layer 4 b. The corner covering band portion 1b is buried over substantially the entire length. As will be described later, the conductive resistor 5 is directly energized at the construction site to generate heat, or electromagnetic waves or high frequencies are used. When the conductive resistor 5 is heated by induction heating, the soft thermoplastic synthetic resin of the surface layer 3b of the upper corner coating strip 1b and the hard thermoplastic synthetic resin of the back layer 4b are thermally softened or melted, and the upper corner coating strip is heated. The part 1b can be bent along the upper end corner 2b of the step part 2 without a gap. The conductive resistor 5 may be embedded in the lower portion in the thickness direction of the upper corner cover strip 1b, that is, in the back surface layer 4b.

  As shown in FIGS. 1 and 2, on the surface of the upper surface covering portion 1a, a large number of anti-slip small projections 6a are arranged vertically and horizontally, and the surface of the hanging surface covering portion 1c is prevented from warping. A plurality of ribs 7 are formed at intervals. Further, on the surface on the upper surface covering portion 1a side of the upper end corner covering strip portion 1b, strip-shaped large protrusions 6b for slip prevention are shifted in half pitches in the length direction of the upper end corner covering strip portion 1b in two rows. In addition, a built-up portion 8 is formed over substantially the entire length of the upper end corner covering band portion 1b at an intermediate portion in the width direction of the upper end corner covering band portion 1b. Therefore, the upper surface covering portion 1a and the upper end corner covering band portion 1b exhibit sufficient slip resistance by the small protrusions 6a and the large protrusion 6b, and the upper end corner covering band portion 1b exhibits sufficient wear resistance by the built-up portion 8. The drooping bottom surface covering portion 1c exhibits a sufficient warp preventing effect by the rib 7.

  As shown in FIG. 1, a plurality of small drain grooves 9 are formed in the above-described built-up portion 8 at the same interval as the pitch interval of the large protrusions 6 b, and rainwater or the like that has fallen on the upper surface covering portion 1 a is at the upper end. It passes between the large protrusions 6b of the corner covering band portion 1b, flows down from the drainage small groove 9 to the hanging surface covering portion 1c, and is drained.

  Further, as shown in FIG. 3, a shallow round groove 10 extending over the entire length of the upper end corner covering band portion 1 b is formed on the surface of the surface layer 3 b of the upper end corner covering band portion 1 b along the buildup portion 8. The conductive resistor 5 is embedded below the circular groove 10. When the conductive resistor 5 is buried below the round groove 10 in this way, the conductive resistor 5 is heated to generate a soft thermoplastic synthetic resin for the surface layer 3b and a hard thermoplastic synthetic resin for the back layer 4b. When heat softened, the upper end corner covering strip 1b is more easily bent, and the round groove 10 disappears after the bending process.

  Examples of the linear or strip-like conductive resistor 5 include those formed of a metal such as nickel chrome alloy and iron, those formed of a conductive synthetic resin, and a synthetic resin to which a conductive agent is added. Used. The size is preferably about 0.2 to 2 mm in diameter if it is a linear conductive resistor, and about 2 to 20 mm in width and 0.02 to 0.02 mm in thickness if it is a strip-shaped conductive resistor. The thing of about 0.2 mm is preferable. One of these conductive resistors 5 may be embedded or a plurality of conductive resistors 5 may be embedded. However, when a plurality of conductive resistors 5 are embedded, an interval of about 2 to 6 mm is provided between the conductive resistors 5. It is preferable to provide them in parallel on the same plane.

  Moreover, the soft thermoplastic synthetic resin which forms each surface layer 3a, 3b, 3c of the upper surface covering part 1a, the upper end corner covering band part 1b, and the hanging surface covering part 1c, the upper surface covering part 1a, the hanging surface covering part 1c As the soft thermoplastic synthetic resin forming the respective back surface layers 4a and 4c, soft vinyl chloride resin and polyolefin resin are preferably used. In particular, as a soft thermoplastic synthetic resin for forming the surface layer 3b of the upper corner coating strip 1b, soft vinyl chloride in which a branched vinyl chloride copolymer is blended with a vinyl chloride resin having a long side chain to form a physical crosslink. Resin is preferable, and further, a soft vinyl chloride resin blended with a granular abrasive is very preferably used. When the surface layer 3b of the upper corner coating strip 1b is formed of the above-mentioned soft vinyl chloride resin having a physical cross-link, high fatigue resistance can be imparted to the upper corner coating strip 1b, and further, granular polishing is performed. Forming the surface layer 3b of the upper corner coating strip 1b with a soft vinyl chloride resin blended with an agent has the advantage of providing high wear resistance as well as high fatigue resistance.

On the other hand, as the hard thermoplastic synthetic resin for forming the back surface layer 4b of the upper corner coating strip 1b, ABS has a softening temperature of about 70 to 120 ° C., a high flexural modulus, and a strong adhesiveness, acid resistance and alkali resistance. ACS, ACA, SAN, vinylidene chloride resin, fluororesin, acrylic resin, aromatic polyester, engineering plastic and the like are preferably used. When the back surface layer 4b of the upper end corner covering strip portion 1b is formed of these hard thermoplastic synthetic resins, there is an advantage that the upper end corner covering strip portion 1b after the bending process is hardly deformed and is not easily broken.
Of course, the back surface layers 4a and 4c of the upper surface covering portion 1a and the hanging surface lower surface covering portion 1c may be formed of the hard thermoplastic synthetic resin.

  The upper surface covering portion 1a and the drooping surface covering portion 1c may have a two-layer structure, a single layer, or a three-layer structure as in this embodiment. The covering band 1b needs to have a laminated structure of at least two layers as in this embodiment. When the upper end corner covering strip 1b has a laminated structure of three or more layers, the surface layer is formed of the above-mentioned soft thermoplastic synthetic resin, and the back layer or the back layer and the intermediate layer are formed of the above-mentioned hard thermoplastic synthetic resin. And it is preferable to improve the bending strength and durability of the upper-end corner coating strip 1b after bending. If the intermediate layer is formed of a hard thermoplastic synthetic resin and the back layer is formed of a soft thermoplastic synthetic resin, the flexible back layer is in contact with the upper end corner 2b of the stepped portion 2. There is an advantage that the familiarity between the portion 2 and the stepped covering flooring 1 is improved and the durability is further improved.

  The thickness of the upper surface covering portion 1a, the upper end corner covering band portion 1b, and the drooping surface covering portion 1c (thickness excluding the small protrusion 6a, large protrusion 6b, build-up portion 8, and rib 7) is not particularly limited. It is preferable that it is about ~ 5 mm. Moreover, what is necessary is just to set this frontage dimension (dimension of the up-down direction in FIG. 1) of this step part covering flooring 1 according to the frontage width of the step part 2 to coat | cover, but generally set to about 90-180 cm. It is appropriate to do. Further, it is desirable that the width dimension (the dimension in the left-right direction in FIG. 1) of the upper end corner covering band portion 1b is set to about 20 to 100 mm in consideration of the radius of the upper end corner 2b of the step portion 2 and the like. . And the width dimension (the dimension in the left-right direction in FIG. 1) of the upper surface covering portion 1a and the hanging surface covering portion 1c is appropriately determined in consideration of the depth size of the upper surface 2a of the stepped portion 2 to be coated and the vertical dimension of the hanging surface 2c Just decide.

  The upper surface covering portion 1a and the drooping surface covering portion 1c of the stepped covering floor material 1 are not necessarily formed of the above-mentioned thermoplastic synthetic resin, and are formed of, for example, metal, stone, wood, etc. You may integrate with the belt | band | zone part 1b.

1-3 is manufactured with the following manufacturing methods, for example.
That is, soft thermoplastic synthetic resin particles for forming the back surface layer 4a of the upper surface covering portion 1a and the hard thermoplastic synthetic resin for forming the back surface layer 4b of the upper end corner covering band portion 1b on the transport belt. And a soft thermoplastic synthetic resin powder for forming the back surface layer 4b of the drooping surface coating portion 1c are dispersed in a predetermined thickness to form the back surface layer 4b of the upper corner coating band portion 1b. On the hard thermoplastic synthetic resin powder particles, a linear or thin strip-shaped conductive resistor 5 is supplied, and each surface of the upper surface covering portion 1a, the upper end corner covering belt portion 1b, and the hanging surface covering portion 1c. The soft thermoplastic synthetic resin particles for forming the layers 3a, 3b, and 3c are sprinkled over a predetermined thickness, and the embossing roll is thermocompressed from above to heat-seal each resin particle, At the same time as seating On the surface of the covering portion 1a and the upper corner covering strip portion 1b drooping surface covering portion 1c, and small protrusions 6a and the large projections 6b and built-up portion 8 and the ribs 7 are prepared by embossing.

  Next, the construction method of the present invention in which the stepped portion 2 is covered with the stepped covering flooring 1 will be described.

  First, as shown in FIG. 4, the upper surface covering portion 1 a of the stepped portion covering flooring 1 is placed on the upper surface 2 a of the stepped portion 2. At this time, the upper surface covering portion 1a is positioned so that the conductive resistor 5 and the built-up portion 8 of the step portion covering flooring 1 are positioned substantially immediately above the tip rounded portion of the upper end corner 2b of the step portion 2. Mounted on the upper surface 2 a of the stepped portion 2.

  Next, the conductive resistor 5 is heated to soften or melt the soft thermoplastic synthetic resin of the surface layer 3b and the hard thermoplastic synthetic resin of the back layer 4b of the upper corner coating strip 1b that is scheduled to be bent. . The heat generated by the conductive resistor 5 may be generated by connecting an electric wire to both ends of the conductive resistor 5 and directly energizing it, or may be generated by induction heating using a device that generates electromagnetic waves or high frequencies. In order to easily connect the conductive resistor 5, it is desirable to expose both ends of the conductive resistor 5.

  The heat generation temperature of the conductive resistor 5 is preferably adjusted to about 150 to 250 ° C. at which the soft thermoplastic synthetic resin of the front surface layer 3b and the hard thermoplastic synthetic resin of the back surface layer 4b are softened or melted. It is preferable that the temperature of the synthetic resin around the resistor 5 is slightly closer to the melting temperature than the intermediate temperature between the melting temperature and the softening temperature.

  When the soft thermoplastic synthetic resin of the surface layer 3b of the upper end corner covering strip portion 1b and the hard thermoplastic synthetic resin of the back surface layer 4b are softened or melted as described above, as shown in FIG. 1b is bent along the upper end corner 2b of the step portion 2, and the upper surface covering portion 1a, the upper end corner covering band portion 1b, and the hanging surface covering portion 1c are formed on the upper surface 2a, the upper end corner 2b, and the hanging surface 2c of the step portion 2. It cools in the state contacted without gap, and solidifies the upper-end corner covering belt | band | zone part 1b.

  When this bending process is performed, as shown in FIG. 7A, a hard flat plate 12 is placed on the upper corner cover strip 1b of the step covering floor material 1, and the flat plate 12 is placed on the upper corner cover strip. While pressing against 1b, the plate 12 is rotated obliquely downward as shown in FIG. 7 (b), and further, the flat plate 12 is parallel to the suspended surface 2c of the step portion 2 as shown in FIG. 7 (c). It is preferable to rotate and bend the upper corner coating strip 1b. In this way, there is an advantage that the upper end corner covering band portion 1b can be reliably bent so that no gap is produced by following the upper end corner 2b of the step portion 2.

  When the bending process of the upper end corner covering strip 1b is finished, the step covering floor material 1 is taken up from the step 2, and the upper surface 2a, the upper end corner 2b, and the hanging surface 2c of the step 2 are used for flooring as shown in FIG. The construction is completed by applying the adhesive 11 or by applying the floor adhesive 11 to the back surface of the step covering floor material 1 and sticking the step covering floor material 1 to the step 2.

  As can be seen from the above description, the step covering floor covering 1 of the present invention is scheduled to be bent to cover the upper surface covering portion 1a covering the upper surface 2a of the step portion 2 and the upper end corner 2b of the step portion 2. Since it is a substantially flat flooring material having an upper end corner covering band portion 1b and a hanging surface covering portion 1c that covers the hanging surface 2c of the step portion 2, it is packaged in a simple packaging container having a low bulk and stored efficiently. Can be transported, thereby saving packaging, storage and transportation costs.

  In addition, the upper end corner covering band portion 1b is formed of a thermoplastic synthetic resin, and a linear or thin band-like conductive resistor 5 is embedded over the substantially entire length of the upper end corner covering band portion 1b in the middle or lower portion in the thickness direction. Therefore, at the construction site, the conductive resistor 5 is heated by direct energization or induction heating based on the construction method of the present invention, and the softened upper corner cover strip 1b is attached to the upper corner 2b of the step 2. Therefore, it can be bent so that no gap is generated. Therefore, there is no need to protect the flooring by filling the gap with a filler as in the prior art, and the durability can be greatly improved without protecting the flooring with the filler.

DESCRIPTION OF SYMBOLS 1 Step part covering floor material 1a Upper surface covering part of step part covering floor material 1b Upper end corner covering band part of step part covering floor material 1c Hanging surface covering part of step part covering floor material 2 Step part 2a Upper surface of step part 2b Step part Top surface corner 2c Stepped surface 3a Surface layer of upper surface covering portion 3b Surface layer of upper surface corner covering band portion 3c Surface layer of hanging surface lower surface covering portion 4a Back surface layer of upper surface covering portion 4b Back surface layer of upper end corner covering belt portion 4c Back surface layer of drooping surface covering portion 5 Conductive resistor 12 Hard flat plate

Claims (4)

A substantially flat surface having an upper surface covering portion that covers the upper surface of the step portion, an upper end corner covering band portion that is scheduled to be folded to cover the upper end corner of the step portion, and a drooping surface covering portion that covers the drooping surface of the step portion. Stepped floor covering,
The upper end corner covering band part scheduled to be bent is formed of thermoplastic synthetic resin, and the upper end corner is heated at the middle or lower part of the thickness direction over the entire length of the upper end corner covering band part during the bending process. A substantially flat stepped covering floor material for bending , characterized in that a linear or thin strip-shaped conductive resistor for heat-softening the covering band is embedded. The upper end corner covering band portion scheduled to be bent has a laminated structure of at least two layers, the surface layer is a soft thermoplastic synthetic resin, and the back layer or the back layer and the intermediate layer are hard thermoplastic synthetic resins, respectively. The substantially flat step covering floor material for bending processing according to claim 1, wherein the floor covering floor material is formed. The upper surface covering portion of the substantially flat stepped covering floor material for bending processing according to claim 1 or 2 is placed on the upper surface of the stepped portion, and the conductivity of the upper end corner covering band portion of the stepped covering flooring material is set. A method for constructing a step covering floor material, wherein the resistor is heated by direct energization or induction heating, and the heat softened upper end corner covering strip portion is bent along the upper end corner of the step portion.   The construction method according to claim 3, wherein a hard flat plate is pressed against the upper corner coating strip when the conductive resistor is heated to bend the upper corner coating strip.

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