JP4579961B2 - Flooring - Google Patents

Description

  The present invention relates to a flooring material comprising a substantially square synthetic resin seat plate and a surface material molded and cured on the upper surface of the seat plate and layered on the upper surface.

  The above flooring is used to construct a large area floor by placing a large number of floor coverings on the floor, such as a veranda, balcony, rooftop, indoor floor, outdoor floor, etc. As a means, a connecting piece projecting outward from the peripheral wall portion of the seat plate is provided.

  Conventionally, as shown in Patent Documents 1 to 3, a floor material in which a surface material made of a tile or cement kneaded material is layered on the upper surface of a square synthetic resin seat is known. As a connecting means between the materials, a connecting piece that protrudes outward from the seat plate peripheral wall portion of one adjacent floor material is provided, and an engagement protrusion that protrudes downward from the seat plate peripheral wall portion of the other adjacent floor material is provided, The seating plate peripheral wall portion of the other floor material adjacent to the upper surface of the connecting piece is placed, and the engaging protrusion provided on the peripheral wall portion is engaged with an engaging hole that penetrates between the upper surface and the lower surface of the connecting piece. It has a connecting structure that connects the flooring materials.

  Patent Document 2 discloses means for absorbing the thermal contraction by displacing the connecting piece in the horizontal direction as a countermeasure when the flooring material is thermally contracted by the heat of the outside air.

Japanese Patent Laid-Open No. 11-22159 Japanese Patent Laid-Open No. 11-30024 Japanese Patent No. 3746051

  The floor materials represented by the above-mentioned Patent Documents 1 to 3 are used to construct a large area floor by laying a large number on the floor base surface, but the floor base surface has unevenness and is below the floor. Each flooring cannot be laid with good habituation due to unevenness of the ground, and there is a problem that the flooring generates a rattling sound or a squeaking noise during walking.

  The above flooring has a structure in which a surface material made of tile or cement kneading material is layered on the upper surface of a square synthetic resin seating plate, and the seating plate loses its upper and lower flexibility due to the layering of tile or cement kneading material. Since it becomes a rigid body, it becomes difficult to familiarize and lay on the floor surface having the above-mentioned unevenness, which causes the above-mentioned rattling and itching sounds.

  In addition, as shown in Patent Document 3, in the case where the cement kneading material layer formed and hardened on the upper surface of the seat plate is provided with a crack-inducing joint, and when it is a structure that induces cracking in the weak joint at the joint base by the stepping pressure, It is possible to absorb the unevenness by bending the seat plate up and down on the line of the crack induction part (joint bottom part), but the uneven absorption is limited to the line area of the crack induction joint, and the above-mentioned rattle and stagnation sound It is difficult to prevent effectively.

  As shown in Patent Documents 1 and 2, the same applies when tiles are divided and pasted on the upper surface of a synthetic resin seat, but the tiles are shifted to a staggered pattern without dividing the tiles into regular grids. When sticking or when the cement kneading material layer shown in Patent Document 3 is divided into staggered joints instead of being divided into regular grids, the uneven absorption effect at the joints is greatly diminished.

  The present invention provides a flooring material that effectively absorbs backlash and squeaking noise in a flooring material obtained by laminating a surface material such as a cement kneading material on the upper surface of a synthetic resin seating plate at a connecting part of the flooring material. To do.

  In short, in a flooring material comprising a substantially square synthetic resin seating plate and a surface material molded and cured on the upper surface of the seating plate and layered on the upper surface, the adjacent floor placed on the floor base surface As a means for connecting the materials together, there is a connecting piece projecting outward from the seat plate peripheral wall portion of one adjacent floor material, and the seat plate peripheral wall portion of the other floor material adjacent to the connecting piece is It is set as the structure which aims at overlap connection.

  Alternatively, each of the adjacent floor materials is provided with a connecting piece projecting outward from the peripheral wall portion of the seat plate, and the two connecting pieces are vertically overlapped for connection.

  The connecting piece is coupled to the peripheral wall portion of the seat plate through a hinge portion that allows elastic displacement in the vertical direction with respect to the stepping pressure, and a large number of individual floor materials placed on the floor base surface are connected to each other. In the connecting portion, that is, in the hinge portion of the connecting piece, each of the connecting pieces is elastically displaced in the vertical direction according to the unevenness to absorb the unevenness of the floor ground surface and effectively prevent rattling and squeaking noise. .

  The hinge part is formed by a thin protrusion protruding outward from the peripheral wall of the seat plate, and the connecting piece protrudes outward from the outer end of the hinge.

  When the connecting piece is provided on each of the adjacent flooring materials, the connecting pieces are configured to be overlapped and connected to each other, and at least one of the connecting pieces is coupled to the seat plate peripheral wall portion via the hinge portion.

  A connecting piece connected to the peripheral wall of the seat plate via the hinge part is projected outwardly with a step on the lower surface side of the hinge part, and the flexibility of the hinge part with respect to the stepping pressure applied to the connecting piece is increased. In addition to being effective, the connecting piece is elastically displaced downward so that it can immediately contact the floor base surface.

  Further, when the connecting piece is provided on each of the adjacent floor materials, the connecting piece coupled to the seat plate peripheral wall portion via the hinge portion protrudes outwardly with a step on the lower surface side of the hinge portion, In the step, the connecting pieces of the adjacent floor materials are overlapped to cause elastic displacement in the vertical direction via the hinge portion.

  Further, the left and right side surfaces of the hinge portion opposed to each other are inclined surfaces that converge from the proximal end to the distal end, thereby effectively causing downward displacement with respect to the treading pressure.

  Further, the left and right side surfaces of the hinge portion are inclined surfaces that converge toward the upper surface from the lower surface of the hinge portion, that is, inclined surfaces in the vertical thickness direction of the hinge portion so that the lower surface of the hinge portion is exposed. Embedding the inclined surface by embedding in the above surface material, thereby increasing the area of the surface material and reducing the gap between the floor materials, while improving the separation of the hinge part with respect to the surface material when stepping pressure is applied The structure is such that the vertical displacement of the hinge portion (vertical displacement of the connecting piece) is effectively caused.

  According to the present invention, unevenness of the floor base surface can be effectively absorbed by the hinge portion that couples (integrally forms) the connecting piece to the seat plate, and rattling and squeaking noise can be effectively prevented.

  The best mode for carrying out the present invention will be described below with reference to FIGS.

  The floor material targeted in the present invention is a floor material in which the surface material 2 is layered on the upper surface of a flat, substantially square synthetic resin seat plate 1, and a large number of floor materials are placed on the floor ground surface 17 while connecting the floor materials to each other. It relates to the uneven absorption structure in the connecting part of floor materials when laying and constituting a floor.

  The surface material 2 is, as a representative example, various self-hardening shaped materials such as a cement kneaded material obtained by kneading cement and various aggregates.

  As shown in FIG. 6 to FIG. 12, etc., the surface material 2 has a structure in which the surface material 2 is molded and cured on the upper surface of the synthetic resin seat plate 1 and layered on the upper surface. A large number of anchors 3 that can be projected integrally and vertically from the upper surface of the seat plate 1 are embedded in the surface material 2 before curing, and the surface material 2 and the seat plate 1 are coupled.

  Further, as shown in FIG. 19 and the like, a number of support legs 6 that can be integrally projected from the lower surface of the seat plate 1 are provided, and the support base 6 is supported on the floor ground surface 17 by the support legs 6 so that the seat plate 1 is The support leg 6 floats and supports the floor base surface 17 to form a continuous gap 18 between the seat plate 1 and the floor base surface 17. The support legs 6 are short cylinders, short elliptical cylinders, prisms, or the like.

  The formation method and structure of the surface material 2 will be described. As shown in FIG. 15, the surface material 2 is molded by filling the surface material molding die 10 with the surface material before curing (cement kneaded material before curing) 2. At the same time, the anchor 3 of the seat plate 1 is pushed into the pre-curing surface material 2 on the open surface of the surface material mold 10 (the open surface corresponding to the lower surface of the surface material 2), and the upper surface of the seat plate 1 is embedded. Is adhered to the lower surface of the pre-curing surface material 2, and thus the floor material having the surface material 2 formed and cured and layered on the upper surface of the seat plate 1 is obtained. The above-mentioned curing is promoted by natural drying or hot air drying before or after demolding the flooring.

  The surface material mold 10 is a rubber mold or a synthetic resin film mold formed of a concave mold (open mold). The outer shape (contour) and surface pattern of the surface material 2 are formed by the mold 10, and joint grooves 11 are formed on the upper surface of the surface material 2 as necessary, as shown in FIGS. The surface material 2 is partitioned into a plurality of sections in appearance by the ground groove 11.

  Alternatively, as shown in FIGS. 6 and 10, the surface material 2 that is flat as a whole without the joint groove 11 is formed. Alternatively, as shown in FIGS. 8 and 12, a plurality of surface materials 2 separated by the separation grooves 12 are formed and layered on the upper surface of one seat plate 1.

  As shown in FIGS. 2 to 4 and the like, as means for strengthening the coupling between the seat plate 1 and the surface material 2 by the anchor 3, a seat plate coupling that penetrates the seat plate 1 directly below the anchor 3 and opens at the upper and lower surfaces. Hole 4 is provided. The seat plate coupling hole 4 is disposed concentrically with the longitudinal axis of the anchor 3 rising vertically from the upper surface of the seat plate 1. The seat plate coupling hole 4 opens over the outer region of both side surfaces of the anchor 3.

  When the surface material 2 is molded and cured on the upper surface of the seat plate 1, that is, the upper surface of the seat plate 1 is pressed against the lower surface of the uncured surface material 2, and the anchor 3 is press-fitted into the surface material 2. The surface material 2 before curing is caused to flow into the hole 4, and the conformity of the surface material 2 before curing to the surface of the anchor 3 and the top surface of the seat plate 1 by the cooperation of the seat plate coupling hole 4 and the anchor 3 immediately below the anchor 3. The adhesion between the surface material 2 and the seat plate 1 is strengthened by obtaining adhesion.

  In other words, the pre-curing surface material 2 surely flows into the coupling hole 4 while discharging the air in the seating board coupling hole 4 to the outside (below the lower surface of the seating board). It is possible to surely cause sneaking into the part and form a healthy anchor structure.

  Further, as shown in FIGS. 2 to 4 and the like, the anchor 3 is provided with an anchor coupling hole 5 that penetrates between the rising side surfaces 9, and the seat plate coupling hole 4 is located directly below the anchor 3, that is, the anchor coupling hole 5. It is provided directly underneath, and the both coupling holes 4 and 5 are communicated to each other, and the pre-curing surface material 2 is allowed to flow into the both coupling holes 4 and 5 that communicate with the upper and lower sides, and the good adaptability to the anchor 3 is improved. 4 and 5 cooperate to improve the anchor effect of the anchor 3.

  As a suitable example, the anchor 3 is formed in a flat plate shape that rises perpendicularly from the seat plate 1 to reduce the pushing resistance into the surface material 2 before curing, smooth insertion, and good adaptability of the surface material 2 before curing to the anchor 3. Secure.

  The anchor coupling hole 5 is provided so as to penetrate between the rising side surfaces 9 of the flat plate anchor 3 facing each other. While the uncured surface material 2 enters the seat plate coupling hole 4, the penetration into the anchor coupling hole 5 is promoted simultaneously, and the coupling holes 4, 5 cooperate with each other to form the anchor 3. The bond strength between the seat plate 1 and the surface material 2 is increased.

  The support leg 6 that protrudes from the lower surface of the seat plate 1 is arranged with a position shifted from the anchor 3 that protrudes from the upper surface of the seat plate 1, and the seat plate coupling hole 4 is opened on the lower surface of the seat plate 1. As shown in FIGS. 2 to 4 and the like, the support leg 6 is disposed immediately below the anchor 3, that is, coaxially with the anchor 3, and is concentric with the seat plate coupling hole 4 on the support leg 6. A support leg coupling hole 7 is provided in communication therewith.

  The support leg coupling hole 7 communicates with the seat plate coupling hole 4 at the upper end, and is open at the lower end surface of the support leg 6. As an example, the support leg 6 is formed into a short columnar shape, and the support leg coupling hole 7 is formed through the support leg 6 to form a short cylinder. Alternatively, the support leg 6 is formed into a short elliptical column shape or a prismatic shape, and the support leg coupling hole 7 is formed through the support leg 6 to form a cylindrical shape.

  The uncured surface material 2 is allowed to escape and flow into the support leg coupling hole 7 through the seat plate coupling hole 4, thereby allowing the surface material before curing into the seat plate coupling hole 4 and thus into the anchor coupling hole 5. The inflow of 2 is promoted so that a strong bond can be obtained.

  In other words, the pre-curing surface material 2 surely flows into the joint holes 4 and 7 while discharging the air in the seat board joint hole 4 to the outside (under the lower surface of the seat board) through the support leg joint hole 7. As a result, it can surely flow into the anchor coupling hole 5 and cooperate with the anchor 3 to form a healthy anchor structure.

  In addition to the above-described configuration, as shown in FIGS. 1 and 2, a large number of coupling windows 8 that penetrate the upper and lower surfaces and allow the surface material 2 before curing to flow in are disposed between the anchors 3. When the anchor 3 is pushed into the pre-curing surface material 2 and embedded, the pre-curing surface material 2 is infiltrated into the seat window coupling hole 4 and the anchor coupling hole 5 while entering the coupling window 8. The integral connection between the surface material 2 and the seat plate 1 is strengthened.

  The uncured surface material 2 covers substantially the entire upper surface of the seat plate 1, covers the inner peripheral wall surface of the coupling window 8, exposes the lower surface of the seat plate, and the support legs 6 protrude from the exposed lower surface of the seat plate. To do.

  As an example, the coupling window 8 is provided in the inner region of the outer frame portion 1 ′, which is the outer peripheral wall of the seat plate 1, by crossing the longitudinal plate beam 13 and the transverse plate beam 14 and dividing it into a plurality of rectangular regions, Diagonal flat plate beams 15 and 16 that intersect diagonally in a rectangular region are integrally formed with the vertical and horizontal flat plate beams 13 and 14, and are defined by the oblique flat plate beams 15 and 16 and the vertical and horizontal flat plate beams 13 and 14 in each square region. A combined window 8 is formed.

  The vertical and horizontal flat plate beams 13 and 14 and the oblique flat plate beams 15 and 16 are coupled in one plane to constitute the seat plate 1 main body. Edge walls slightly rising from the upper surface of the seat plate 1 (upper surface of the outer frame portion 1 ′) are provided on the four sides of the outer frame portion 1 ′, which is the outer peripheral wall of the seat plate 1, or the beam of the beam is not provided. It terminates in the state of the plate thickness, that is, the plate thickness of the seat plate 1.

  The outer frame 1 ', the beams 13 to 16, the anchor 3, the support leg 6, the engaging protrusion 21, the connecting pieces 20, 20', which will be described later, and the hinge 27 are integrally formed of synthetic resin. A suitable material for the synthetic resin is polyacetal which is less deformed by temperature changes and less electrostatically charged.

  As shown in FIG. 18 and FIG. 19, a large-sized walking floor is formed by laying a large number of the above rectangular flooring materials on the floor base surface 17 with supporting legs 6 in the vertical and horizontal directions, and under the seating plate 1 of the entire flooring material. A continuous void 18 is formed.

  Each of the floor materials is connected to adjacent floor materials at four sides. As shown in FIG. 16, FIG. 17, etc. as connecting means, connecting pieces 20 projecting substantially horizontally outwardly from the outer frame portion 1 'constituting the outer peripheral walls of two adjacent sides of the seat plate 1 are provided on each side. A plurality of engagement holes 19 are provided in the connecting pieces 20 so as to vertically penetrate the connecting pieces 20.

  Similarly, a plurality of connecting pieces 20 ′ protruding substantially horizontally outward from the outer frame portion 1 ′ constituting the outer peripheral walls of the other two sides adjacent to the seat plate 1 are arranged at intervals along each side. The engaging protrusion 21 is projected downward from the lower surface 24 ′ of the piece 20 ′.

  The engaging protrusion 21 is inserted into the engaging hole 19 of the connecting piece 20 with a forcible force, and the engaging protrusion 21 is inserted into an annular locked step portion 22 b formed on the inner peripheral surface of the engaging hole 19. The engaging step 23b of the engaging claw 23a formed on the outer surface of the floor is engaged to connect the flooring.

  The connecting piece 20 or the connecting pieces 20, 20 ′ is connected to the seat plate peripheral wall portion (outer frame portion 1 ′) via a hinge portion 27 that allows elastic displacement in the vertical direction with respect to the stepping pressure, and the floor base surface 17. A large number of floor materials placed on the floor material are connected to each other, that is, each of the connection pieces 20 or 20 ′ is not flat on the floor base surface 17 in the hinge part 27 of the connection piece 20 or the connection pieces 20, 20 ′. Accordingly, the structure is configured to elastically displace upward and downward to absorb unevenness of the floor ground surface 17 and effectively prevent rattling and itching.

  Both the connecting pieces 20 and 20 'are rigid bodies, and the hinge portion 27 is thin to enable elastic displacement in the vertical direction.

  That is, the hinge part 27 is formed by a thin protrusion protruding outward from the peripheral wall part (outer frame part 1 ′) of the seat plate, and the connecting pieces 20, 20 ′ are connected from the outer end part of the hinge part 27. Project outward.

  When the connecting pieces 20 and 20 'are provided on the adjacent floor materials, the connecting pieces 20 and 20' are vertically stacked and connected, and at least one of the connecting pieces 20 and 20 'is connected to the hinge. It couple | bonds with a seat-plate surrounding wall part via the part 27. FIG.

  The connecting piece 20 has a step 27a on the lower surface side of the hinge portion 27 and protrudes outward to effectively cause the hinge portion 27 to bend with respect to the stepping pressure, and the connecting piece 20 is connected to the hinge portion 27. It is possible to immediately contact the floor ground surface 17 when it is displaced downward via the.

  Preferably, a lower step 27a is provided between the hinge part 27 projecting outward from the peripheral wall of the seat plate and the connecting piece 20 projecting outward from the hinge part 27. That is, the connecting piece 20 protrudes from the outer end of the hinge portion 27 through the lower step 27a, so that the lower surface 24 of the connecting piece 20 is substantially flush with the lower surface 25 of the support leg 6 so that the lower surface of the support leg 6 is lowered. 25 and the lower surface 24 of the connecting piece 20 are supported on the floor base surface 17 to support the entire flooring material.

  The step 27 a comes into contact with the inner peripheral surface of the opening of the surface material mold 10 and forms a ruler means for setting the position of the seat plate 1. That is, the connecting piece 20 is placed on the upper surface of the frame wall that defines the opening of the mold 10, and the step of the step 27 a is brought into contact with the inner peripheral surface of the opening of the mold 10 to set the position of the seat plate 1. .

  On the other hand, the connecting piece 20 'protrudes outward so as to be flush with the outer frame portion 1', the engaging protrusion 21 protrudes from the lower surface 24 'of the connecting piece 20', and the flooring is When laying a large number on the floor base surface 17, the other connecting piece 20 'is placed on the upper surface of the connecting piece 20 of the adjacent floor material (in a superposed state), and the engaging protrusion provided on the connecting piece 20' 21 is press-fitted into an engagement hole 19 provided in the connecting piece 20 to connect the floor materials to each other.

  When connecting pieces 20 and 20 ′ are provided on each of the adjacent floor materials, the connecting piece 20 connected to the seat plate peripheral wall portion via the hinge portion 27 is provided with a step 27 a on the lower surface side of the hinge portion 27. Projecting outward, overlapping the connecting pieces 20 'of the adjacent floor materials in the step 27a to connect the floor materials to each other, and applying the stepping pressure applied to the connecting pieces 20' to the connecting pieces 20, A configuration is adopted in which pressure is received by the floor base surface 17 that supports the connecting piece 20.

  The hinge part 27 can be provided at both bases of the connecting pieces 20, 20 '. That is, the connecting pieces 20 and 20 ′ are coupled to the outer frame portion 1 ′ that is the peripheral wall of the seat plate through the hinge portion 27 that is bent up and down, and both the connecting pieces 20 and 20 ′ are displaced up and down through the hinge portion 27. To be able to.

  A connecting portion by the connecting pieces 20, 20 'is disposed between the outer frame portions 1' of the flooring material, and the engagement holes 19 and the engaging protrusions 21 are engaged between the outer frame portions 1 '.

  By connecting the connecting piece 20 and / or 20 'to the seat plate peripheral wall portion (outer frame portion 1') via a hinge portion 27 that allows elastic displacement in the vertical direction with respect to the stepping pressure, the floor base surface 17 A plurality of individual floor coverings are connected to each other at the connecting portion of the floor coverings, that is, at the hinge portion 27 of the connecting piece 20 or / and 20 ', each of the connecting pieces 20 and / or each of the connecting pieces 20' is a floor ground surface. In accordance with the unevenness of 17, it is elastically displaced up and down to absorb the unevenness of the floor ground surface 17 and effectively prevent rattling and squeaking noise.

  The left and right side surfaces of the hinge portion 27 that are opposed to each other are inclined surfaces 27b that converge at an angle α1 from the base end toward the outer side (tip), and similarly, a downward displacement with respect to the stepping pressure is effectively caused. In other words, the hinge part 27 is substantially trapezoidal.

  Further, the opposite left and right side surfaces (thick surface of the hinge portion 27) of the hinge portion 27 are inclined surfaces 27c that converge at an angle α2 from the lower surface to the upper surface of the hinge portion 27, that is, the upper and lower wall thickness of the hinge portion 27. An inclined surface 27c is formed in the direction, and the hinge portion 27 is embedded in the surface material 2 so that the lower surface thereof is exposed to embed the inclined surface 27c, thereby increasing the area of the surface material 2 and adjacent surface material 2 While the joint groove 11 ′ between the side surfaces 2 ′ is reduced, the inclined surface 27 c improves the separation from the surface material 2 with respect to the treading pressure, and the connecting piece 20 through the upper and lower elastic displacements of the hinge portion 27 or And / or a structure that effectively induces the vertical displacement of 20 '.

  The surface material 2 covers the upper surface of the outer frame portion 1 ′, and its end portion extends to the outer region of the outer frame portion 1 ′ to fill the recessed space 28 between the hinge portions 27. A semi-embedded state is made on the lower surface of the part as described above. Accordingly, the connecting piece 20 and the engagement hole 19 project from the side surface 2 'of the surface material 2 to be exposed and used for connection.

  Similarly, the protruding portion of the surface material 2 fills the recessed space 28 'between the connecting pieces 20', the connecting piece 20 'is semi-embedded on the lower surface of the surface material protruding portion, and the lower surface 24' of the connecting piece 20 '. The engaging protrusion 21 protruding downward from the lower surface 24 'is exposed and used for connection.

  The four side surfaces 2 'of the surface material 2 filling the recessed spaces 28, 28' are brought into substantially abutting contact with the respective side surfaces 2 'of the surface material 2 adjacent in the four directions, or are opposed to each other with a slight gap. In any case, the upper corner edge of the four-side surface 2 'of the surface material 2 is formed in an arc shape to form a joint groove 11'.

  The connecting pieces 20 ′ are also formed with inclined surfaces 27 b and 27 c similar to the hinge portion 27. Alternatively, as in the case of the connecting piece 20, when the connecting piece 20 ′ is coupled to the outer frame portion 1 ′ via the hinge portion 27, the inclined surfaces 27 b and 27 c are provided on the hinge portion 27. Hereinafter, the case where the inclined surfaces 27b and 27c are provided on the connecting piece 20 'will be described.

  The opposing left and right side surfaces of the connecting piece 20 'are inclined surfaces 27b that converge from the base end toward the outer side (tip), and similarly, a structure that effectively induces a downward displacement with respect to the stepping pressure. In other words, the connecting piece 20 'is substantially trapezoidal.

  Further, the opposing left and right side surfaces (thick surface of the connecting piece 20 ') of the connecting piece 20' are inclined surfaces 27c that converge from the lower surface 24 'to the upper surface of the connecting piece 20', that is, the upper and lower wall thickness of the connecting piece 20 '. An inclined surface 27c is formed in the direction, and the connecting piece 20 'is embedded in the surface material 2 so that the lower surface 24' is exposed, and the inclined surface 27c is embedded, thereby increasing the area of the surface material 2 and adjoining it. While reducing the joint groove 11 ′ between the side surfaces 2 ′ of the surface material 2, the inclined surface 27 c improves the separation property from the surface material 2 with respect to the treading pressure. That is, the connecting piece 20 ′ is also made the same thickness as the hinge portion 27, and a slight elastic displacement that follows the hinge portion 27 on the base line with the outer frame portion 1 ′ is separated from the surface material 2 with respect to the stepping pressure. Allow.

  When the lower surface 24 ′ of the connecting piece 20 ′ of the floor seat plate 1 adjacent to the upper surface 26 of the connecting piece 20 is overlapped and supported, the side surfaces of the seat plate 1 are opposed to each other, and the upper surface of the adjacent seat plate 1 (surface material) 2 upper surfaces) are on the same plane, and lower surfaces of adjacent seat plates 1 are on the same plane.

  The connecting means for the flooring will be described in more detail. The connecting piece 20 is provided with an elongated engagement hole 19 in a direction perpendicular to the side surface of the seat plate outer frame portion 1 '(the side surface of the seat plate 1). An annular locked step 22 b is formed on the inner peripheral surface of the joint hole 19. In other words, an annular latching claw 22a projects from the inner peripheral surface of the engagement hole 19, and the annular latching step portion 22b is formed on the lower surface of the latching claw 22a. The upper surface of 22a is formed as an inclined surface 22c inclined inward to guide the introduction of the engaging protrusion 21.

  On the other hand, the engagement protrusion 21 is formed into a split mortise structure that can be elastically displaced in the short direction of the elongated engagement hole 19, and a locking step portion 23b is formed on the outer surface of each split mortise 21a (engagement protrusion 21). .

  More specifically, a locking claw 23a projects from the outer surface of each split mortise 21a, and the lower surface of the locking claw 23a is a slope 23d that guides the introduction of the split mortar 21a into the engagement hole 19, The locking step 23b is a slope 23c that guides the escape of the engaging protrusion 21. Accordingly, the upper and lower surfaces of the locking claw 23a are inclined surfaces 23c and 23d.

  Thus, the split mortise 21a is elastically press-fitted into the engaging hole 19, and the locking step 23b of the locking claw 23a is inserted in the short direction of the annular locked step 22b of the locked claw 22a. And each split mortise 21a is elastically contacted with the inner surface of the engagement hole 19 in the short direction, that is, the inner surface of the hooked claw 22a in the short direction. The locking step portion 23b of the locking claw 23a slides on the surface of the annular locked step portion 22b in the longitudinal direction of the engagement hole 19 while keeping the state and the elastic contact state, so that the floor materials move toward and away from each other. The configuration is as follows.

  As shown in FIG. 16B, when the locking step portion 23b of the split tenon 21a is engaged with the inner end in the longitudinal direction of the annular locked step portion 22b of the engagement hole 19, the one and the other floor materials The side surfaces of the seat plate 1 are in contact with each other.

  On the contrary, as shown in FIG. 16C, when the locking step portion 23b of the split tenon 21a is engaged with the outer end in the longitudinal direction of the annular locked step portion 22b of the engagement hole 19, the one and the other It is set as the structure which the seating board 1 edge part side surface of a flooring material mutually spaces apart.

  Preferably, the lower surface 21b of the engagement protrusion 21 is brought into contact with the floor ground surface 17 when the engagement step portion 23b of the split tenon 21a is engaged with the annular engagement step portion 22b of the engagement hole 19. That is, in the connected state, the lower surface 21 b of the engaging protrusion 21 (split tenon 21 a), the lower surface 25 of the support leg 6, and the lower surface 24 of the connecting piece 20 are coplanar and supported by the floor base surface 17.

  Therefore, while the split mortise 21a keeps the engaged state and the elastic contact state, it slides in the direction approaching or separating from the adjacent floor material together with the floor material to absorb the unevenness of the floor ground surface 17, The manufacturing error of the connecting piece 20 and the engaging protrusion 21 is absorbed, and the thermal contraction is absorbed.

  Also, as shown in FIG. 16D, the connecting pieces 20 and / or 20 ′, which are means for connecting the flooring materials, are elastically displaced up and down via the hinge portions 27 to absorb the unevenness, and the rattling and squeaking noises are generated. Eliminate effectively.

  As the surface material 2 that is molded and hardened on the surface of the seat plate 1, a material obtained by kneading various aggregates such as sand, glass, wood pieces and minerals with cement or synthetic resin as a binder is applied.

  Alternatively, in addition to the cement and the synthetic resin, materials in which various aggregates are blended with those to be dried and hardened, such as slag, incinerated ash, and gypsum can be applied. Alternatively, a kneaded material of various sludges such as papermaking sludge and cement or synthetic resin can be applied.

  As the surface decoration means of the surface material 2 described above, various patterns can be molded or colored on the surface, or a sheet-like or granular surface decoration material can be adhered.

The top view of a seat board. FIG. 2 is a sectional view taken along line AA in FIG. 1. BB sectional drawing in FIG. The perspective view which expands and shows the anchor part of a seat board. The bottom view of a seat board. The top view of the flooring which layered the surface material on the seat board. The top view of the flooring which laminated the surface material which formed the joint groove in the seat board. The top view of the flooring which laminated | stacked the several surface material which makes a seat board isolate | separate independently. FIG. 9 is a cross-sectional view taken along line AA in FIGS. 6, 7, and 8. BB sectional drawing in FIG. BB sectional drawing in FIG. BB sectional drawing in FIG. The perspective view which expands and shows the coupling | bonding state of the anchor part of a seat board, and a surface material. The bottom view of the flooring which laminated the surface material on the seat board. A and B are sectional views illustrating a process of embedding anchors of a seat plate in a surface material before curing. A, B, C, and D indicate connecting means for the above flooring materials, A is a cross-sectional view showing a state before connection of the engagement protrusion of the connection piece and the split tenon structure, and connection with the engaging claw of the engagement protrusion FIG. 2 is an enlarged side view of a piece, B is a cross-sectional view showing a state in which an engagement protrusion is connected to an inner end of the engagement hole, and C is a cross-sectional view showing a state in which the engagement protrusion is connected to an outer end of the engagement hole. , D is sectional drawing which shows the elastic displacement state through the hinge part of a connection piece. A and B show the connection means between the floor materials, A is a cross-sectional view of the state before connection, and B is a cross-sectional view of the state after connection on a line parallel to the seat plate. The top view which shows the state which installed many said floor materials in the floor base surface. Sectional drawing in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Seat plate, 1 '... Outer frame part, 2 ... Surface material, 2' ... Side surface of surface material, 3 ... Anchor, 4 ... Seat plate coupling hole, 5 ... Anchor coupling hole, 6 ... Support leg, 7 ... Support Leg coupling hole, 8 ... coupling window, 9 ... anchor side surface, 10 ... surface material molding die, 11, 11 '... joint groove, 12 ... separation groove, 13 ... longitudinal plate beam, 14 ... transverse plate beam, 15 , 16 ... oblique plate beam, 17 ... floor base surface, 18 ... gap, 19 ... engagement hole, 20, 20 '... connection piece, 21 ... engagement protrusion, 21a ... split tenon, 21b ... lower surface of engagement protrusion, 22a ... Claws to be locked, 22b ... Ring locked step, 22c ... Slope, 23a ... Locking claw, 23b ... Locking step, 23c, 23d ... Slope, 24, 24 '... Bottom surface of the connecting piece, 25 ... Lower surface of support leg, 26 ... Upper surface of connecting piece, 27 ... Hinge, 27a ... Step, 27b, 27c ... Inclined surface, 28, 28 ' Concave space.

Claims (5)

Connects adjacent floor materials placed on the floor base surface in a floor material consisting of a substantially square synthetic resin seat plate and a surface material molded and hardened on the upper surface of the seat plate and layered on the upper surface. A connecting piece projecting outward from the peripheral wall portion of the seat plate as at least one floor material, and via a hinge portion allowing the elastic displacement in the vertical direction against the stepping pressure of the connecting piece A flooring material, characterized in that a connecting piece coupled to the peripheral wall portion of the seat plate and connected to the peripheral wall portion of the seat plate via the hinge portion projects outwardly with a step on the lower surface side of the hinge portion. . The connecting piece is provided on each of the adjacent floor materials, and the connecting pieces are arranged to be connected to each other in the vertical direction, and at least one of the connecting pieces is connected to the peripheral wall portion of the seat plate via the hinge portion. The flooring according to claim 1. A connecting piece coupled to the peripheral wall of the seat plate via the hinge portion is projected outwardly with a step on the lower surface side of the hinge portion, and the connecting pieces of the adjacent floor materials are overlapped in the step. The flooring according to claim 2, wherein the flooring is configured. Claim 1 or 2 or 3 Symbol mounting flooring is characterized in that the inclined surfaces converging towards the tip left and right opposite sides of the hinge portion from the proximal end. The left and right side surfaces of the hinge portion facing each other are inclined surfaces that converge toward the upper surface from the lower surface of the hinge portion, and the inclined surface is embedded by burying the hinge portion in the surface material so that the lower surface is exposed. claim 1 or 2 or 3 or 4 Symbol mounting flooring and.

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