JP2018040234A - Foamed resin block with surface material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foamed resin block with a surface material that offers excellent surface appearance, enables the surface material and the foamed resin block to be fitted firmly, and suppresses deformation and damage of the surface material caused by compressive creep deformation of the foamed resin block.SOLUTION: A foamed resin block with a surface material includes a foamed resin block 11 having a dovetail groove 12 formed on a surface, a fitting member 20 of a shape following the dovetail groove and being fitted into the dovetail groove, and a surface material 30 having a protruded streak 31 formed thereon, the protruded streak being positioned inside the dovetail groove of the foamed resin block. A hook part 21 is formed on the fitting member, while a hook part insertion slit 33 is formed on the protruded streak at a position corresponding to the hook part. By engaging the hook part of the fitting member to the hook part insertion slit of the protruded streak of the surface material, the surface material is assembled with the foamed resin block.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a foamed resin block with a surface material, and particularly relates to a foamed resin block with a surface material that is suitably used in a lightweight embankment structure.

  In recent years, as a method of widening embankments on slopes and embankments on freestanding walls, in order to reduce the embankment structure and reduce earth pressure, instead of embankment methods using soil, blocks such as polystyrene foam (hereinafter referred to as “foam resin block”). Is used to construct a civil engineering structure such as a road. This lightweight embankment method can shorten the construction period and reduce costs compared to the embankment method using soil.

  In such a lightweight embankment method, the foamed resin blocks are stacked to construct a lightweight embankment structure, and the surface formed by a metal plate, a synthetic resin system plate, a cement system plate, etc. on a portion located on the outer surface of the structure The foamed resin block to which the material is attached is disposed so that the surface material is exposed to protect the foamed resin block inside.

  As a method of attaching the surface material to the foamed resin block, a support member for screwing a bolt for attaching the surface material to the surface in contact with the surface material of the foamed resin block is embedded, and a hole for bolt insertion is provided in the surface material for foaming. There is a method of fixing the resin block and the surface material with bolts. However, with this method, it is necessary to make a screw hole in the surface material, and because the bolt is exposed on the surface, a repair agent for hiding the bolt is necessary, and the surface of the repair agent remains on the surface. There are problems such as inferior properties and that there is a possibility that a defect may occur due to the bolt part.

  In order to avoid the above-mentioned problem, as disclosed in Patent Document 1, dovetail grooves are formed on the surface of the foamed resin block formed in a rectangular parallelepiped, and convex shapes corresponding to the dovetail grooves are formed on the back surface of the surface material. There has been proposed a foamed resin block with a surface material in which a surface material is attached to the surface of the foamed resin block by forming a strip and fitting the convex strip into a dovetail groove.

JP 2007-23665 A

  However, when forming a dovetail groove having an open top in the foamed resin block as disclosed in FIG. 2 of Patent Document 1, the foamed resin block and the surface material are directly fitted, so the material of the foamed resin block Further, depending on the expansion ratio, the fitting strength between the foamed resin block and the engaging portion of the surface material may be insufficient. In particular, a large load is applied to the foamed resin block arranged in the lower part of the structure, so the foamed resin block is likely to undergo compression creep deformation, and the attached surface material is triggered by deformation or breakage of the foamed resin block. There was also a risk of cracking or chipping.

  The present invention has been made in view of the above circumstances, has excellent surface appearance, can be firmly attached to the surface material and the foamed resin block, and is a surface material by compression creep deformation of the foamed resin block. An object of the present invention is to provide a foamed resin block with a surface material that can effectively suppress deformation, breakage, and the like.

  In order to achieve the above object, the foamed resin block with a surface material according to claim 1 is a foamed resin block with a surface material in which a surface material is attached to the surface of the foamed resin block, and a dovetail groove is formed on the surface. A foamed resin block, a shape following the shape of the dovetail groove, a fitting member fitted into the dovetail groove, and a ridge located inside the dovetail groove of the foamed resin block were formed. A flange portion is formed in the fitting member, and a flange insertion slit is formed at a position corresponding to the flange portion of the ridge, and the flange portion of the fitting member. The surface material is assembled to the foamed resin block by engaging with the flange insertion slit of the ridge of the surface material.

  A foamed resin block with a surface material according to claim 2 is the invention according to claim 1, wherein the flange portion is formed by bending both opening edges of the fitting member inwardly. The flange insertion slit is formed on both side surfaces of the ridge at a position corresponding to the flange of the joint member.

  Moreover, the foamed resin block with a surface material of Claim 3 crosses the said dovetail groove and the said protruding item | line on the surface of the said foamed resin block and the protruding item | line of the said surface material in the invention of the said Claim 1 or 2. Positioning slits are formed, and positioning plates inserted into the positioning slits are provided, and the positioning plates are interposed between the positioning slits of the foamed resin block and the positioning slits of the protrusions of the surface material. Thus, the surface material is positioned with respect to the foamed resin block.

  Further, the foamed resin block with a surface material according to claim 4 is the invention according to any one of claims 1 to 3, wherein the dovetail groove of the foamed resin block is vertically installed in a state where the foamed resin block is constructed and installed. The guide rod insertion part is formed in the protruding item | line of the said surface material while being formed along.

  Further, the foamed resin block with a surface material according to claim 5 is the invention according to any one of claims 1 to 4, wherein a plurality of dovetail grooves of the foamed resin block and a plurality of protrusions of the surface material are formed. It is characterized by that.

  According to the foamed resin block with a surface material of the first aspect of the present invention, the surface material is fixed to the foamed resin block via a fitting member. That is, since the surface material is supported by the fitting member, the surface material can be firmly held by the foamed resin block by forming the fitting member from a highly rigid material. Further, since the surface material is bonded to the surface of the foamed resin block via the fitting member, even if the foamed resin block is subjected to compression creep deformation, there is no possibility of being directly subjected to deformation or breakage. Furthermore, since the ridges of the surface material are engaged by the flanges of the fitting member, it is not necessary to make the shape of the ridges corresponding to the dovetail grooves. Therefore, the ridge can be inserted from a direction perpendicular to the opening of the dovetail (a direction perpendicular to the surface of the foamed resin block), and mounting of the surface material becomes easy.

  According to the foamed resin block with a surface material of claim 2, in addition to the effect of the invention of claim 1 described above, the fitting member having the flange portion can be easily manufactured, and The engagement strength is high.

  According to the foamed resin block with the surface material of claim 3, in addition to the effect of the invention of claim 1 or 2, the positioning plate secures the attachment position of the surface material to the foamed resin block.

  According to the foamed resin block with a surface material of claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, the foamed resin block with a surface material of the upper stage is foamed resin with a surface material of the lower stage by a guide rod. It can be easily and accurately placed on the block.

  According to the foamed resin block with a surface material of the fifth aspect, in addition to the effect of any one of the first to fourth aspects, the surface material can be more firmly attached to the foamed resin block.

It is the conceptual perspective view which showed an example of the lightweight banking structure in which the foamed resin block with a surface material which concerns on this invention is used. It is the disassembled perspective view which showed one Embodiment of the foamed resin block with a surface material which concerns on this invention. It is the figure which illustrated the cross-sectional shape of the dovetail groove | channel formed in the foamed resin block with a surface material which concerns on this invention. It is the figure which illustrated the structure which fixes a surface material to a foamed resin block via the fitting member of the foamed resin block with a surface material which concerns on this invention. It is the figure which illustrated the structure which fixes a surface material to a foamed resin block via the fitting member of the foamed resin block with a surface material which concerns on this invention. It is the figure which illustrated the shape of the dovetail groove | channel formed in the foamed resin block with a surface material which concerns on this invention, and the shape of the fitting member fitted by this dovetail groove | channel. It is the perspective view which showed an example of the surface material in the foamed resin block with a surface material which concerns on this invention from the back surface. It is the perspective view which showed an example of the assembly | attachment operation | work of the foamed resin block with a surface material which concerns on this invention. It is the perspective view which showed one Embodiment of the foamed resin block with a surface material which concerns on this invention. It is the perspective view which showed an example of the operation | work which attaches the foamed resin block with a surface material which concerns on this invention to a concrete floor slab. It is the perspective view which showed an example of the operation | work which attaches the foam resin block with an upper surface material to the lower foam resin block with a surface material which concerns on this invention. It is a conceptual sectional view showing an example of the arrangement relation of guide rods.

  Hereinafter, an embodiment of a foamed resin block with a surface material according to the present invention will be described in detail with reference to the drawings.

A light-weight embankment structure 1 shown in FIG. 1 is an inclined land widening structure, and a drainage layer 3 such as a water permeable material and a drainage material is provided along an inclined surface of a natural ground 2, and a filling material is provided thereon. 4, the foamed resin block structure 5 is laminated. A concrete floor slab 6 is laid on the uppermost surface of the foamed resin block structure 5, and a roadbed 7 composed of a concrete layer 7 a, gravel 7 b, asphalt 7 c and the like is laid thereon.
In the lightweight embankment structure 1 configured as described above, a side wall 9 is formed in a portion exposed to the outside in order to protect the foamed resin block 8 inside the foamed resin block structure 5. A foamed resin block 10 with a surface material is used for the side wall 9.

  As shown in FIG. 2, the foamed resin block 10 with a surface material includes a rectangular parallelepiped foamed resin block 11, a fitting member 20, a surface material 30, a positioning plate 40, and the like.

  The foamed resin block 11 may be made of foamed polystyrene, polyethylene, polypropylene, polyurethane, polyvinyl chloride or the like. Among them, polystyrene is preferably used from the viewpoint of being inexpensive and having high strength even at low density.

In general, the foamed resin block 11 preferably has a density of about 0.01 to 0.05 g / cm ³ . Further, the size of the foamed resin block 11 is not particularly limited, but for example, a length of about 50 to 200 cm, a width of 50 to 150 cm, and a height of 20 to 100 cm is preferable from the viewpoint of workability. Further, the foamed resin block 11 preferably has independent bubbles in consideration of water resistance, strength, etc., and may be a foamed resin block formed by extrusion foaming. A foamed resin block may be used.

  Dovetail grooves 12 are formed on the outer surface of the foamed resin block 11. The dovetail groove 12 is formed along either the up-down direction or the left-right direction when the foamed resin block 11 is installed. However, when a reinforcing bar guide rod 50 described later is implanted in the dovetail groove 12, the dovetail groove 12 is preferably formed along the vertical direction. When the dovetail groove 12 is formed along the vertical direction, the positioning slit 13 is preferably formed so as to cross the dovetail groove 12 (in the width direction of the foamed resin block 11). It is particularly preferable that the positioning slit 13 is formed at an intermediate portion in the vertical direction of the foamed resin block 11.

  Two or more dovetail grooves 12 are preferably formed on one foamed resin block 11, and more preferably four or more are formed. Moreover, it is preferable that the foamed resin block 11 is formed at a symmetrical position with respect to the center C in the width direction. For example, when four dovetail grooves 12 are formed, as shown in FIG. Are preferably located at a distance L1 from both side surfaces E of the foamed resin block 11, and the other two are located at a distance L1 from the center C in the width direction of the foamed resin block 11.

  The dovetail groove 12 in the present invention is formed so as to have a wider width from the opening toward the inner side of the foamed resin block 11. As a specific shape of the dovetail groove 12, the cross section as shown in FIG. 3A is not only trapezoidal, but the circular shape shown in FIG. 3B or the T shown in FIG. It may be a letter shape. And when the shape of the dovetail groove 12 is changed in this way, the cross-sectional shape of the fitting member 20 to be described later fitted into the dovetail groove 12 is also changed accordingly.

The fitting member 20 is formed following the shape of the dovetail groove 12 of the foamed resin block 11 and is fitted into the dovetail groove 12.
The fitting member 20 is not particularly limited in its formation method as long as it conforms to the shape of the dovetail groove 12, but a plate-like member, for example, a sheet metal formed by bending the dovetail groove 12, Examples thereof include those formed by extruding molten resin or molten metal from a die having a shape following the shape of the dovetail groove 12.

  The fitting member 20 is formed of a metal, a synthetic resin, or the like. In particular, the Galvalume steel plate (registered trademark), stainless steel plate, hot dip galvanized plate, hot dip zinc-aluminum-magnesium alloy plated steel plate having excellent corrosion resistance and good workability. Etc. are preferably used. The thickness of the fitting member 20 is preferably 0.2 to 5 mm, and more preferably 0.3 to 3 mm in view of the balance between strength and lightness.

The fitting member 20 is formed with a flange portion 21, and the flange portion 21 is engaged with a flange insertion slit 33 formed at a position corresponding to the flange portion of the protrusion 31 of the surface material 30 described later. By combining them, the surface material 30 is assembled to the foamed resin block 11.
The flange portion 21 may be formed by bending both opening edges of the fitting member 20 inward as shown in FIG. 4, and as shown in FIG. It may be formed by bending the tip of the projecting piece 23 fitted in the recess 35 formed in 31 outward. From the viewpoint of fitting strength and ease of manufacture, it is preferable that the flange portion 21 is formed by bending both opening edges of the fitting member 20 inward. The shape of the collar portion 21 is not particularly limited as long as it can be engaged with the collar portion insertion slit 33 formed on the surface material 30 side, but for example, a linear shape, an L shape, and a shape bent into a fishhook shape. Is mentioned.

  Further, when the flange portion 21 is formed at both opening edges of the fitting member 20, the side surface of the fitting member 20 is preferably inclined inward slightly from the side surface of the dovetail groove 12. Specifically, as shown in FIG. 6, when the cross section of the dovetail groove 12 is trapezoidal and the cross section of the fitting member 20 is a trapezoidal shape following that, the bottom surface 12 a and the side surface 12 b of the dovetail groove 12 It is preferable that the angle θ2 formed by the bottom surface 20a and the side surface 20b of the fitting member 20 is more acute than the angle θ1 formed. If the angle θ2 is more acute than the angle θ1, the flange 21 of the fitting member 20 is spread outward by the protrusion 31 when the protrusion 31 of the surface material 30 and the fitting member 20 are engaged. Are preferable because they are engaged more firmly. The angle of θ2 with respect to θ1 is preferably an acute angle inward of about 2 to 20 °, although it depends on the shape of the dovetail groove 12.

  The surface material 30 is not particularly limited as long as it is a hard plate member, and is formed mainly of a material having excellent rigidity, such as a metal plate, a synthetic resin plate, a cement plate, or the like. Further, the surface material 30 may be blended with auxiliary agents such as a plasticizer, an ultraviolet absorber, a colorant, an antistatic agent, an antibacterial agent, a flame retardant, and a filler as long as the objective effects of the present invention are not impaired. good. Further, the surface of the surface material 30 may be coated with a waterproof material, a colorant, a hydrophilic material, a water repellent material, a heat shield material, or the like.

On the back surface of the surface material 30, as shown in FIG. 7, protrusions 31 are formed at positions corresponding to the dovetail grooves 12 of the foamed resin block 11.
The side surface of the ridge 31 is not particularly limited as long as it can be engaged with the fitting member 20, but is preferably tapered. Moreover, it is preferable that the width | variety of the front end surface of the protruding item | line 31 currently formed in the surface material 30 is smaller than the opening width of the dovetail groove 12 of the foamed resin block 11. FIG. The side surface of the protrusion 31 has a tapered shape, the width of the tip surface is smaller than the opening width of the dovetail groove 12 of the foamed resin block 11, and the fitting member 20 forms more than the angle θ1 formed by the dovetail groove 12. If the angle θ2 is an acute angle, even if a part of the surface material 30 constituting the side wall 9 of the lightweight embankment structure 1 is broken, only the damaged surface material is removed and a new surface material is obtained. Is preferable because it can be easily repaired by fitting it from the surface toward the foamed resin block 11.

  When a new surface material 30 is fitted from the surface toward the foamed resin block 11, the angle θ2 formed by the bottom surface 20a and the side surface 20b of the fitting member 20 is more than the angle θ1 formed by the bottom surface 12a and the side surface 12b of the dovetail groove 12. Since it is an acute angle, there is a gap between the side surface of the dovetail groove 12 and the side surface of the fitting member 20 before the surface material 30 is fitted into the foamed resin block 11. When the surface material 30 is fitted from the surface toward the foamed resin block 11, the flange portion 21 of the fitting member 20 is spread outward by the ridges 31, whereby the side surface of the dovetail groove 12 and the side surface of the fitting member 20. And then the flange 21 of the fitting member 20 and the flange insertion slit 33 of the ridge 31 are engaged with each other, and the side surface of the fitting member 20 is elastically deformed to cause the flange By returning 21 inward, a gap is formed again between the side surface of the dovetail groove 12 and the side surface of the fitting member 20.

  Moreover, the protruding item | line 31 may be formed continuously in the up-down direction, and may be formed intermittently. From the viewpoint of strength for fixing the foamed resin block 11 and the surface material 30, it is preferably formed continuously in the vertical direction. The ridge 31 is preferably formed with a positioning slit 34 so as to cross the ridge 31, and the positioning slit 34 is particularly preferably formed in the middle in the longitudinal direction of the ridge 31. . Further, the protrusion 31 is formed with a flange insertion slit 33 that can be engaged with the flange 21. The flange insertion slit 33 is formed at a position corresponding to the flange 21 formed on the fitting member 20 as shown in FIGS. 4 to 7. The part insertion slits 33 are preferably formed on both side surfaces of the protrusion 31 as shown in FIGS.

  It is preferable that the guide rod insertion part 32 is extended in the longitudinal direction at the front end surface of the ridge 31 and the flange insertion slit 33 is formed in the longitudinal direction on the side wall. When forming the guide rod insertion part 32 in the protruding item | line 31, the shape of Fig.4 (a) can be illustrated. Moreover, the guide rod insertion part may be formed in the fitting member 20, and when forming the guide rod insertion part 22 in the fitting member 20, the shape of FIG.4 (b) or FIG. 5 can be illustrated. . From the viewpoint of the bonding strength between the surface material 30 and the foamed resin block 11, it is more preferable that the guide rod insertion portion 32 is formed on the ridge 31.

  The surface material 30 may be formed of one surface material for one foamed resin block 11 or may be formed of two or more surface materials for one foamed resin block 11. Also good. In addition, the said dovetail groove | channel 12 and the said protruding item | line 31 corresponding to it shall have one or more per surface material. For example, when two surface materials 30 are formed for one foamed resin block 11, at least one ridge 31 is provided for each surface material.

  Further, the surface material 30 is slightly smaller than the outer surface of the foamed resin block 11, so that when the creep block is deformed in the foam block with the surface material, the foam with the adjacent surface material is foamed. It can suppress that the surface materials of a body block contact, and a crack and a chip are produced. From the above viewpoint, the length per side of the surface material 30 is preferably 0.5 to 10% shorter than the length per side of the outer surface of the foamed resin block 11, and more preferably 1 to 5% shorter. Moreover, as thickness of the surface material 30, 7-40 mm is preferable from viewpoints, such as heat resistance, intensity | strength, and lightweight property, and 10-25 mm is more preferable.

  Further, like the fitting member 20, the positioning plate 40 is formed of a galvalume steel plate (registered trademark), a stainless plate, a hot dip galvanized plate, a hot dip zinc-aluminum-magnesium alloy plated steel plate, etc., which is rich in rigidity and excellent in corrosion resistance. ing. The positioning plate 40 has dimensions corresponding to the thickness, depth and width of the positioning slit 13 of the foamed resin block 11.

  As a method of assembling the foamed resin block 10 with the surface material, first, in FIG. 2, the positioning plate 40 is fitted into the positioning slit 13 of the foamed resin block 11. Next, the protrusions 31 are inserted into the dovetail grooves 12 of the foamed resin block 11 while fitting the positioning slits 34 of the surface material 30 to the positioning plate 40 (see FIG. 8). And the surface by inserting the collar part 21 in the slit 33 for collar part insertion of the protrusion 31 while inserting the fitting member 20 between the dovetail groove 12 of the foamed resin block 11 and the protrusion 31 of the surface material 30. A foamed resin block 10 with a material can be formed (see FIG. 9).

As shown in FIGS. 4 and 5, the foamed resin block 10 with the surface material assembled in this way has the side surface of the fitting member 20 restrained in the dovetail groove 12 by the side surface of the dovetail groove 12 of the foamed resin block 11. Then, the flange 21 of the fitting member 20 engages with the flange insertion slit 33 of the ridge 31 of the surface material 30, and the surface material 30 is assembled to the foamed resin block 11.
When the guide rod insertion portion 32 is formed in the surface material 30, the opening of the groove-shaped guide rod insertion portion 32 of the ridge 31 is formed by the bottom wall of the fitting member 20 as shown in FIG. The guide rod insertion hole 32a is defined there. When the groove-shaped guide rod insertion portion 22 is formed in the fitting member 20, the opening of the guide rod insertion portion 22 is covered with the surface material 30 as shown in FIG. 5B, and the guide rod insertion hole is provided there. 22a is defined.

  As shown in FIG. 1, such a foamed resin block 10 with a surface material is laid on a concrete floor slab 6 placed on a flat portion of a natural ground 2 to construct a lightweight embankment structure 1.

  As a method of constructing the lightweight embankment structure 1 using the foamed resin block 10 with the surface material, first, the concrete floor slab 6 is placed and the reinforcing bar guide rod 50 is implanted. The installation position of the guide rod 50 is a position corresponding to the guide rod insertion hole 32a on the end E side of the foamed resin block 10 with a surface material.

  Next, as shown in FIG. 10, the guide rod insertion holes 32 a of the foamed resin block 10 with a surface material are fitted to the guide rods 50 to install the foamed resin block 10 with a surface material. And if the foamed resin block 10 with a surface material is laid on the concrete floor slab 6, the foamed resin block 8 will be laid inside.

  Next, the guide rod 51 is inserted into the guide rod insertion hole 32a located in the middle of the laid foam resin block 10 with a surface material.

  Thus, the insertion depth of the guide rod 51 inserted into the guide rod insertion hole 32a of the foamed resin block with surface material 10 is regulated by the positioning plate 40.

  Next, as shown in FIG. 11, the guide rod insertion hole 32a of the foamed resin block 10 with the surface material laid on the upper part is fitted into the guide rod 51 inserted into the foam resin block 10 with the lower surface material. Then, the foam resin block 10 with the upper surface material is laid.

  Then, if the foamed resin block 10 with the surface material is laid on the lower foamed resin block 10 with the surface material, the foamed resin block 8 is laid in the interior between the inner ground 2.

  Then, concrete is placed on the upper surface of the foamed resin structure 5 in which the foamed resin block 10 with the surface material and the foamed resin block 8 are laid in a plurality of stages to form the floor slab 6. The foamed resin block 10 with material and the foamed resin block 8 are laid to construct a lightweight embankment structure 1 as shown in FIG.

  The lightweight embankment structure 1 constructed in this way is configured so that joint materials can be loaded between the surface materials 30. The joint material is, for example, a method of loading a back-up material after forming a lightweight embankment structure and filling a sealing material on the outside thereof, or when laying a foam resin block with a surface material between foam resin blocks with a surface material There is a method of mounting a joint material made of AES (acrylonitrile-ethylene-styrene copolymer), polyvinyl chloride, silicon, EPDM (ethylene propylene rubber), urethane, metal plate, EPDM foam, polyethylene foam, etc. is there.

  In the light-weight embankment structure 1 constructed in this way, as shown in FIG. 12, the end in the width direction of the foam resin block 10 with the upper surface material is a guide rod at the intermediate portion of the lower surface foam resin block 10. 51. That is, since the upper and lower surface foam resin blocks 10 are connected by the discontinuous guide rods 51, the applied load generated in the upper and lower surface foam resin blocks 10 is applied to the other surface resin foam resin blocks 10. Damage can be kept to a minimum without being transmitted.

  As mentioned above, although the foamed resin block with a surface material which concerns on this invention was demonstrated, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the description of the scope of claims that embodiments with such changes or improvements can also be included in the technical scope of the present invention.

  The foamed resin block with a surface material according to the present invention can be suitably used in a lightweight embankment structure because the work of attaching the surface material to the foamed resin block is simple and can be firmly attached.

DESCRIPTION OF SYMBOLS 1 Lightweight embankment structure 2 Ground mountain 3 Drainage layer 4 Filling material 5 Foamed resin block structure 6 Concrete floor slab 7 Roadbed 7a Concrete layer 7b Gravel 7c Asphalt 8 Foamed resin block 9 Side wall 10 Foamed resin block with surface material 11 Foamed resin Block 12 Dovetail groove 13 Positioning slit 20 Fitting member 21 Hook 22 Guide rod insertion portion 22a Guide rod insertion hole 23 Projection piece 30 Surface material 31 Convex strip 32 Guide rod insertion portion 32a Guide rod insertion hole 33 Slit for insertion of flange 34 Positioning slit 35 Recess 40 Positioning plate 50, 51 Guide rod

Claims (5)

  A foamed resin block with a surface material having a surface material attached to the surface of the foamed resin block, the foamed resin block having a dovetail groove formed on the surface, and a shape following the shape of the dovetail groove. A fitting member to be fitted in the groove, and a surface material on which a ridge located inside the dovetail groove of the foamed resin block is formed, and a flange is formed on the fitting member, A slit for inserting a collar part is formed at a position corresponding to the collar part of the ridge, and the surface is obtained by engaging the collar part of the fitting member with the collar part insertion slit of the ridge of the surface material. A foamed resin block with a surface material, wherein a material is assembled to the foamed resin block.   The flange part is formed by bending both opening edges of the fitting member inward, and the slits for inserting the flange part are formed on both side surfaces of the ridge at a position corresponding to the flange part of the fitting member. The foamed resin block with a surface material according to claim 1, wherein the foamed resin block is formed.   Positioning slits that cross the dovetail grooves and the ridges are formed on the surface of the foamed resin block and the ridges of the surface material, and the positioning plate is inserted into the positioning slits, and the positioning The said surface material is positioned with respect to the said foamed resin block by interposing a board in the positioning slit of the said foamed resin block, and the positioning slit of the protruding item | line of the said surface material, It is characterized by the above-mentioned. Or the foamed resin block with a surface material of 2.   The dovetail groove of the foamed resin block is formed along the vertical direction in a state in which the foamed resin block is constructed and installed, and a guide rod insertion portion is formed on the ridge of the surface material. The foamed resin block with a surface material according to any one of claims 1 to 3.   The foamed resin block with a surface material according to any one of claims 1 to 4, wherein a plurality of dovetail grooves of the foamed resin block and a plurality of protrusions of the surface material are formed.

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