Joint member and panel member connection structure

Abstract

To provide a joint member that makes it possible to properly connect one panel member made of extruded hollow resin to the other panel member.SOLUTION: One insertion portion 21 inserted into a hollow hole H2 provided inside from an edge of one panel member 10A, and the other insertion portion 22 inserted into a hollow hole H2 provided inside from an edge of the other panel member 10B are provided. Having a shape in which the one insertion portion 21 extends toward one side and the other insertion portion 22 extends toward the other side, with a boundary C between the one insertion portion 21 and the other insertion portion 22, the one insertion portion 21 and the other insertion portion 22 have straight portions 23a, 24a whose width is constant in the direction extending from the boundary C, and tapered portions 23b and 24b whose width gradually decreases from the straight portions 23a and 24a to the tips.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a joint member and a connecting structure for panel members. [Background technology]

[0002] For example, tiles are widely used to finish the walls of buildings. Traditionally, these tiles have been attached to walls using mortar. However, there was a concern that the tiles would easily fall off due to aging or earthquakes.

[0003] For this reason, a method is known in which tiles are attached to the wall surface of a building using an elastic adhesive to increase the adhesive strength of the tiles. When attaching tiles to the edges using such an elastic adhesive, in order to eliminate unevenness on the wall surface of the building, a base layer is formed in advance by applying a base adjuster to a predetermined thickness on the wall surface, and the surface is made smooth with this base layer before applying an elastic adhesive to attach the tiles (for example, see Patent Document 1 below).

[0004] Specifically, the following Patent Document 1 discloses a method for fixing a base layer forming set log to one of the wall surfaces constituting the protruding corner with the ridge side of the set log protruding from the protruding corner by the thickness of the base layer; a first base layer forming process for applying a base layer material to the other wall surface constituting the protruding corner with a thickness corresponding to the width of the set log protruding from the protruding corner to form a first base layer; a first removal process for removing the base layer forming set log from one of the wall surfaces; and The disclosed method for attaching tiles using a set block for forming a base layer includes a second set block installation step of fixing a set block for forming a base layer to the other wall surface constituting the protruding corner through a layer; a second base layer formation step of applying a base layer material to one of the wall surfaces constituting the protruding corner to a thickness corresponding to the protruding width of the set block face from the protruding corner to form a second base layer; a second removal step of removing the set block for forming the base layer from the other wall surface; and a tile attachment step of overlaying the first base layer and the second base layer to form adhesive layers respectively, and then attaching the tiles. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2021-4443 A Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, the invention described in the above-mentioned Patent Document 1 uses a hollow resin log instead of a wooden log. The hollow resin log is easier to peel from the construction surface after the base layer is formed than a wooden log, and corner accuracy is easier to achieve, so it is possible to form the above-mentioned first base layer and second base layer with high accuracy.

[0007] On the other hand, hollow resin logs are more prone to warping than wooden logs, and are more prone to warping. In particular, polyethylene resin logs are soft and have no stiffness, and are therefore more prone to warping. Furthermore, long logs are longer than 2000 mm, taking into account the construction site, and therefore require large trucks or the like for transportation. For this reason, there is a demand for hollow resin logs that are shorter than wooden logs, and which can be connected together on-site to suppress the occurrence of warping.

[0008] The present invention has been proposed in consideration of the above-mentioned conventional circumstances, and aims to provide a joint member that enables proper connection between one panel member and another panel member made of extruded hollow resin, as well as a connecting structure of panel members using such a joint member. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides the following means. [1] A joint member that connects one panel member and the other panel member made of extruded hollow resin in a state where the ends of the one panel member and the other panel member are butted against each other, comprising: one insertion portion to be inserted into a hollow hole provided on the inside from an end portion of the one panel member; and a second insertion portion that is inserted into a hollow hole provided on the inside from the end portion of the second panel member, The one insertion portion has a shape in which the one insertion portion extends toward one side and the other insertion portion extends toward the other side across a boundary between the one insertion portion and the other insertion portion, The one insertion portion and the other insertion portion each have a straight portion whose width is constant from the boundary toward the direction of extension, and a tapered portion whose width gradually decreases from the straight portion toward the tip. ,before A first plate portion is folded along a folding line extending from the boundary toward each tip. and A second plate portion, The first plate portion and the second plate portion each have the straight portion and the tapered portion. Ruj Joint material. [ 2 The one insertion portion and the other insertion portion have a shape extending toward one side and the other side in a linear direction with the boundary therebetween. 1 ] A joint member according to the above. [ 3 a protrusion is provided at the boundary, The projection is provided so as to project from a surface of either the first plate portion or the second plate portion opposite to a side on which the other plate portion is located. 2 ] A joint member according to the above. [ 4 The one insertion portion and the other insertion portion have a shape extending toward one side and the other side in a direction intersecting each other with the boundary therebetween. 1 ] A joint member according to the above. [ 5A panel member connection structure in which one panel member and another panel member made of extrusion-molded hollow resin are butted against each other at their ends and connected to each other via a joint member, The above [1] to [ 4 2. A panel member connection structure comprising the joint member according to claim 1. Effect of the Invention

[0010] As described above, according to the present invention, it is possible to provide a joint member that enables proper connection between one panel member made of extruded hollow resin and another panel member, as well as a connection structure of panel members using such a joint member. [Brief description of the drawings]

[0011] [Figure 1] 1 is a perspective view showing the appearance of a panel member to which the present invention is applied; [Diagram 2] 2 is a cross-sectional view of a panel member taken along line AA shown in FIG. [Diagram 3] FIG. 2 is a plan view showing a configuration of a joint member according to an embodiment of the present invention. [Figure 4] FIG. 4 is a side view showing the configuration of the joint member shown in FIG. [Diagram 5] 4 is a cross-sectional view of the joint member taken along line BB shown in FIG. 3. [Figure 6] 2 is a perspective plan view showing a joint structure of panel members in which one panel member is connected to another panel member via the joint member shown in FIG. [Figure 7] 7 is a cross-sectional view of the connection structure of panel members taken along line CC shown in FIG. 6. [Figure 8] 1 is a flow chart showing the steps of a tiling method. [Figure 9] 1A to 1C are cross-sectional views showing a tile attachment method in stages. [Figure 10] 1A to 1C are cross-sectional views showing a tile attachment method in stages. [Figure 11] 1A to 1C are cross-sectional views showing a tile attachment method in stages. [Figure 12] FIG. 11 is a plan view showing the configuration of another joint member of the present invention. [Figure 13] FIG. 13 is a side view showing the configuration of the joint member shown in FIG. [Figure 14] 13 is a cross-sectional view of the joint member taken along line DD shown in FIG. 12. [Figure 15] 13 is a perspective plan view showing a joint structure of panel members in which one panel member is joined to another panel member via the joint member shown in FIG. 12. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the drawings used in the following description may show characteristic parts in a schematic manner for the sake of convenience in order to make the characteristics easier to understand, and the dimensional ratios of each component may not necessarily be the same as in reality. Furthermore, the materials, dimensions, etc. exemplified in the following description are merely examples, and the present invention is not necessarily limited to them, and may be appropriately modified and implemented within the scope of the present invention.

[0013] (Panel material) First, as a panel member to which the present invention is applied, for example, a base layer forming marking block (hereinafter referred to as "panel member") 10 shown in Figs. 1 and 2 will be described.

[0014] Fig. 1 is a perspective view showing the appearance of the panel member 10. Fig. 2 is a cross-sectional view of the panel member 10 taken along line AA shown in Fig. 1.

[0015] The panel member 10 to which the present invention is applied is, for example, a base layer forming gauge used to form a base layer by accurately applying a base adjustment material (material that constitutes the base layer) to a predetermined thickness before forming an adhesive layer for attaching tiles to the protruding corners of a building.

[0016] Specifically, as shown in Figures 1 and 2, the panel member 10 has a rectangular, flat attachment portion 11 with one side forming a fixing surface 11A, a rectangular, flat inclined portion 12 with one side connected to one side of the attachment portion 11 and inclined at a predetermined angle relative to the fixing surface 11A, a rectangular, flat support portion 13 extending from the other side of the inclined portion 12 parallel to the attachment portion 11, and multiple (three in this embodiment) beam portions 14 connecting the attachment portion 11 and the support portion 13.

[0017] The panel member 10 is a hollow resin panel molded body extruded into a long plate shape. The panel member 10 is made of, for example, polyethylene resin, but is not necessarily limited to such a resin material.

[0018] The length of the panel member 10 is preferably 1000 to 1410 mm. In this embodiment, it is 1100 mm. This is because, although a short panel member 10 is advantageous in terms of transportation and handling, it requires more connection points and therefore more connection work at the construction site.

[0019] The thickness of the panel member 10 is preferably 5 to 50 mm, and more preferably 10 to 30 mm, and in this embodiment, it is 10 mm.

[0020] The width of the panel member 10 is preferably 10 to 300 mm, and more preferably 20 to 150 mm, and in this embodiment, it is 45 mm.

[0021] A plurality of (three in this embodiment) hollow holes H1, H2 are provided penetrating the inside of the panel member 10 along the extending direction (longitudinal direction) of the panel member 10. In this embodiment, of the three hollow holes H1, H2 aligned in the width direction (short direction) of the panel member 10, one hollow hole H1 with a trapezoidal cross-sectional shape is provided on the inclined portion 12 side, and two hollow holes H2 with quadrangular (rectangular) cross-sectional shapes are provided on the support portion 13 side.

[0022] In addition, in this embodiment, the attachment portion 11, the inclined portion 12, the support portion 13 and the beam portion 14 that constitute the panel member 10 are integrally molded from the same resin material, but parts of them may be formed from different materials and joined together to form an integral unit.

[0023] The attachment part 11 has an outer surface that is a flat set wood surface 11A. The attachment part 11 has a recess 11b that is recessed in the thickness direction from the set wood surface 11A. This recess 11b is provided to prevent the panel member 10 from floating up when the panel member 10 is fixed to the wall surface at the protruding corner by nailing in the tile attachment method described later.

[0024] In addition, it is preferable that at least the attachment portion 11 is made of a material that has releasability against the base adjuster that constitutes the base layer. In this embodiment, for example, the entire panel member 10 is integrally molded from a polyethylene resin that has releasability against the base adjuster.

[0025] The inclined portion 12 is connected to the attachment portion 11 so as to intersect with the attachment portion 11 at a predetermined angle, and a ridge portion 15 is formed at the connection portion between the inclined portion 12 and the attachment portion 11. The inclination angle θ1 of the inclined portion 12 with respect to the attachment portion 11 may be in the range of 30° to 60°, and preferably in the range of 30° to 50°. In this embodiment, the inclination angle θ1 is 40°.

[0026] The ridge 15 where the attachment part 11 and the inclined part 12 are connected forms a flat surface S that spreads at a predetermined angle with respect to the set wood surface 11A. This flat surface S improves the cutting of the trowel when applying the base adjustment material in the tile attachment method described below. The inclination angle θ2 of the flat surface S with respect to the set wood surface 11A may be in the range of 90° or more and 150° or less. In this embodiment, the inclination angle θ2 is 90°.

[0027] The support portion 13 is a portion that supports the panel member 10 when a worker presses the panel member 10 against a wall surface at a corner in a tile attachment method described below. A plurality of grooves 16 extending along the longitudinal direction L are formed on the outer surface of the support portion 13. In this embodiment, the plurality of grooves 16 are formed in regions of the outer surface of the support portion 13 that correspond to the spaces between the three beam portions 14.

[0028] These grooves 16 make it easier to drive nails or the like into the wall surface at a corner when fixing the panel member 10 to the wall surface at a tile attachment method described later, and also prevent the panel member 10 from cracking by driving nails or the like into the wall surface through these grooves 16.

[0029] (Joint material) Next, as one embodiment of the present invention, a joint member 20A shown in, for example, Figs. 3, 4 and 5 will be described.

[0030] Fig. 3 is a plan view showing the configuration of the joint member 20A. Fig. 4 is a side view showing the configuration of the joint member 20A. Fig. 5 is a cross-sectional view of the joint member 20A taken along line segment BB shown in Fig. 3. The length of the joint member 20A is preferably 100 mm to 300 mm. In this embodiment, it is 100 mm.

[0031] As shown in Figures 3, 4 and 5, the joint member 20A of this embodiment connects one panel member 10 (hereinafter referred to as "one panel member 10A") to the other panel member 10 (hereinafter referred to as "the other panel member 10B") by butting their ends together.

[0032] Specifically, this joint member 20A has one insertion portion 21 that is inserted into a hollow hole H2 provided inward from the end of one panel member 10A, and the other insertion portion 22 that is inserted into a hollow hole H2 provided inward from the end of the other panel member 10B.

[0033] The joint member 20A is made of, for example, sheet metal. Note that the joint member 20A is not limited to the above-mentioned sheet metal, and may be made of any material that can withstand the connection between one panel member 10A and the other panel member 10B.

[0034] The joint member 20A has a linear (I-shaped) shape with one insertion portion 21 extending toward one side in a linear direction and the other insertion portion 22 extending toward the other side in the linear direction, sandwiched between a boundary C between one insertion portion 21 and the other insertion portion 22.

[0035] Moreover, the one insertion portion 21 and the other insertion portion 22 have a symmetrical shape with respect to the boundary C. Specifically, the one insertion portion 21 and the other insertion portion 22 have a first plate portion 23 and a second plate portion 24 that are folded at a predetermined angle (90° in this embodiment) with a folding line R extending from the boundary C toward each tip in between. That is, the one insertion portion 21 and the other insertion portion 22 have an L-shaped cross-sectional shape composed of the first plate portion 23 and the second plate portion 24.

[0036] In this embodiment, of the first plate portion 23 and the second plate portion 24, the first plate portion 23 is provided to match the width dimension w of the hollow hole H2. The second plate portion 24 is provided to match the height dimension h of the hollow hole H2. In this embodiment, the width dimension w of the hollow hole H2 is 12 mm, and the height dimension h of the hollow hole H2 is 6 mm.

[0037] One insertion portion 21 and the other insertion portion 22 have straight portions 23a, 24a whose width is constant in the direction extending from the boundary C, and tapered portions 23b, 24b whose width gradually decreases from the straight portions 23a, 24a toward the tip. That is, the first plate portion 23 and the second plate portion 24 have straight portions 23a, 24a and tapered portions 23b, 24b, respectively. The tapered portions 23b, 24b are formed by cutting the tip side of the first plate portion 23 and the second plate portion 24 obliquely toward the folding line R side.

[0038] The length of the straight portions 23a, 24a is preferably 50 to 150 mm. In this embodiment, it is 50 mm. The length of the tapered portions 23b, 24b is preferably 25 to 75 mm. In this embodiment, it is 25 mm.

[0039] The length of the straight portions 23a, 24a is preferably 4 to 6 times the width dimension w of the hollow hole H2. This is because the panel member 10 is made of polyethylene resin, which is soft and has no stiffness, and therefore if the straight portions 23a, 24a are not inserted deeply into the panel member 10, the rigidity to prevent warping is insufficient.

[0040] In this embodiment, the length of the straight portions 23a, 24a is approximately four times the width dimension w. The length by which the straight portions 23a, 24a are inserted into one of the panel members 10 is up to the boundary C, and is therefore approximately twice the width dimension w. Furthermore, if the lengths of the straight portions 23a, 24a are different, the resistance to warping will differ depending on the bending direction, so it is preferable to make them the same dimension.

[0041] A protrusion 25 is provided at the center (boundary C) of the joint member 20A. The protrusion 25 is provided to protrude from a surface of either the first plate portion 23 or the second plate portion 24 (the first plate portion 23 in this embodiment) opposite to a side on which the other plate portion (the second plate portion 24 in this embodiment) is located. In this embodiment, the protrusion 25 is formed by embossing the first plate portion 23.

[0042] (Connecting structure for panel members) Next, a connection structure of panel members 10 using the above-mentioned joint member 20A will be described with reference to FIGS.

[0043] 6 is a perspective plan view showing a connection structure of panel members 10 in which one panel member 10A and the other panel member 10B are connected via a joint member 20A. FIG. 7 is a cross-sectional view of the connection structure of panel members 10 taken along line segment CC shown in FIG.

[0044] The connecting structure of the panel members 10 in this embodiment is formed by inserting one insertion portion 21 of the joint member 20A into a hollow hole H2 provided inward from the end of one panel member 10A, and by inserting the other insertion portion 22 into a hollow hole H2 provided inward from the end of the other panel member 10B, as shown in Figures 6 and 7.

[0045] As a result, the connecting structure of the panel members 10 in this embodiment has a structure in which one panel member 10A and the other panel member 10B are connected to each other via the joint member 20A with the ends of the panel members 10A and 10B butted against each other.

[0046] Thus, in the connected structure of the panel member 10 of this embodiment, the two panel members 10A, 10B are connected together, and the panel member 10 can be used in an extended state.

[0047] Furthermore, the connection structure of the panel members 10 in this embodiment is not limited to the configuration in which the two panel members 10 described above are connected, but it is also possible to have a configuration in which three or more panel members 10 are connected using two or more joint members 20A.

[0048] In the joint member 20A of this embodiment, the first plate portion 23 and the second plate portion 24 are provided with tapered portions 23b, 24b, making it possible to easily insert the tapered portions 23b, 24b of the one insertion portion 21 and the other insertion portion 22 into the hollow hole H2 of the one panel member 10A and the other panel member 10B.

[0049] In addition, in the joint member 20A of this embodiment, the straight portions 23a, 24a are provided on the first plate portion 23 and the second plate portion 24 described above, so that the straight portions 23a, 24a of the one insertion portion 21 and the other insertion portion 22 can be inserted without gaps into the hollow holes H2 of the one panel member 10A and the other panel member 10B. In addition, since the inserted state is supported by two vertical and horizontal surfaces of the straight portions 23a, 24a, the inserted state can be stably maintained.

[0050] Furthermore, in the joint member 20A of this embodiment, the end of one panel member 10A and the end of the other panel member 10B abut against the above-mentioned protrusion 25, thereby making it possible to prevent further insertion. This makes it possible to properly butt the end of one panel member 10A and the end of the other panel member 10B together at the center (boundary C) of the joint member 20A. Also, since the panel members 10A and 10B are made of polyethylene resin, they can be deformed along the protrusion 25 and fixed without wobbling.

[0051] In addition, when the ends of one panel member 10A and the other panel member 10B are butted against each other, the protrusion 25 is embedded between the one panel member 10A and the other panel member 10B. This makes it possible to butt the ends of the one panel member 10A and the other panel member 10B against each other over the entire surface without exposing the protrusion 25 between the one panel member 10A and the other panel member 10B.

[0052] In this embodiment, the case where one inserting portion 21 and the other inserting portion 22 of the joint member 20A are inserted into the end-located hollow hole H2 of the two hollow holes H2 of the panel members 10A and 10B is illustrated, but it is also possible to insert one inserting portion 21 and the other inserting portion 22 of the joint member 20A into the intermediate hollow hole H2. Furthermore, it is also possible to insert the joint member 20A into two or more of the three hollow holes H1 and H2. However, since the hollow hole H1 has a different cross-sectional shape from the two hollow holes H2, a joint member 20A that matches the hollow hole H1 is required.

[0053] (How to attach tiles) Next, a method for attaching tiles using the connection structure of the panel members 10 will be described with reference to Figs. Fig. 8 is a flow chart showing the steps of the tile adhering method, and Figs. 9 to 11 are cross-sectional views showing the steps of the tile adhering method.

[0054] The connecting structure of the panel members 10 is configured by connecting the panel members 10A and 10B via the joint member 20A to form one base layer forming set block 100. Therefore, in the following description, a tile attaching method using the base layer forming set block 100 will be described.

[0055] In the tile installation method of this embodiment, when tiles are attached to one wall surface 2 and the other wall surface 3 of a corner 1 of a building, first, as a first set block installation step S1 shown in Figure 8, the set block surface 11A of a set block 100 for forming a base layer is aligned against one wall surface 2, as shown in Figure 9(a).

[0056] 9(b), the ridge 15 of the base layer forming ridge 100 is caused to protrude from the corner of the projected corner 1 so as to match the thickness of the first base layer 7 to be formed on the other wall surface 3. That is, the first base layer 7 is formed in a later process up to a thickness equivalent to the protruding width (protruding length) of the ridge 15 protruding from the corner of the projected corner 1.

[0057] In the first set block installation step S1, it is preferable to align the set block surface 11A of the base layer forming set block 100 with one of the wall surfaces 2, and then fix the base layer forming set block 100 to one of the wall surfaces 2. The base layer forming set block 100 is fixed, for example, by driving a mortar nail (fixing tool) P into one of the wall surfaces 2 through a groove 16 formed in the support portion 13 of the base layer forming set block 100.

[0058] At this time, by driving the nail P into the formation position of the recess 11b recessed from the set surface 11A in the thickness direction of the attachment part 11, the protrusion of the nail hole part of the set surface 11A and the bulge of the nail hole part of one wall surface 2 are accommodated in this recess 11b, preventing the base layer forming set surface 10 from floating up from one wall surface 2. Also, by driving the nail P into a position set back from the corner of the projected corner 1, it is possible to prevent the projected corner 1 from cracking.

[0059] In addition, the base layer forming set block 100 has two hollow holes H2 into which nails P are driven, but if necessary, the base layer forming set block 100 can be fixed to one of the wall surfaces 2 by driving nails P along either one of the hollow holes H2.

[0060] Next, in the first base layer forming step S2 shown in Fig. 8, as shown in Fig. 9(b), attention is focused on the flat surface S of the ridge 15 of the base layer forming set block 10 protruding from the corner 1, and the base adjustment material is applied to the other wall surface 3 up to the position of the flat surface S of the ridge 15. As a result, a first base layer 7 having a thickness equivalent to the protruding width (protruding length) of the ridge 15 protruding from the corner of the corner 1 is formed on the other wall surface 3 constituting the corner 1.

[0061] In the first base layer forming step S2, the base adjustment material may be applied by, for example, an operator using a trowel to smooth the base adjustment material. At this time, since the flat surface S is formed on the ridge 15 of the base layer forming set block 100, the base adjustment material can be easily cut with the trowel during work, improving workability, and suppressing bulging of the corners of the formed first base layer 7, allowing the first base layer 7 to be formed with a uniform thickness overall.

[0062] 8, the nail P is removed from one of the wall surfaces 2, and then the base layer forming set block 100 is removed from one of the wall surfaces 2. At this time, since at least the attachment portion 11 of the base layer forming set block 100 is formed from a material that has releasability against the base adjustment material, such as polyethylene resin, it can be removed from the end face of the first base layer 7 without destroying the shape of the end face of the formed first base layer 7. Thereafter, the formed first base layer 7 is hardened.

[0063] Next, as the second base block installation process S4 shown in Figure 8, the base block surface 11A of the base layer forming base block 100 is placed against the other wall surface 3 via the hardened first base layer 7, as shown in Figure 10(a).

[0064] 10(b), in the second setting block installation step S4, ridge portion 15 of base layer forming setting block 100 is caused to protrude from the corner of protruding corner 1 via first base layer 7 so as to match the thickness of second base layer 8 to be formed on one wall surface 2. That is, in a subsequent step, the second base layer 8 is formed to a thickness equivalent to the protruding width (protruding length) of ridge portion 15 protruding from the corner of protruding corner 1.

[0065] In the second setting block installation step S4, it is preferable to align the setting block surface 11A of the base layer forming setting block 100 against the other wall surface 3 via the hardened first base layer 7, and then fix the base layer forming setting block 100 to the other wall surface 3. The base layer forming setting block 100 is fixed, for example, by driving a mortar nail (fixing tool) P into the other wall surface 3 from a groove 16 formed in the support portion 13 of the base layer forming setting block 100.

[0066] At this time, by driving the nail P into the formation position of the recess 11b recessed from the set surface 11A in the thickness direction of the attachment part 11, the protrusion of the nail hole part of the set surface 11A is accommodated in this recess 11b, preventing the base layer forming set block 100 from floating up from the hardened first base layer 7. Also, by driving the nail P into a position set back from the corner of the protruding corner 1, it is possible to prevent the protruding corner 1 from cracking.

[0067] Next, in the second base layer forming step S5 shown in Fig. 8, as shown in Fig. 10(b), attention is focused on the flat surface S of the ridge portion 15 of the base layer forming set block 100 that protrudes from the corner 1 via the first base layer 7, and the base adjustment material is applied to one wall surface 2 up to the position of the flat surface S of the ridge portion 15. As a result, a second base layer 8 having a thickness equivalent to the protruding width (protruding length) of the ridge portion 15 protruding from the corner of the corner 1 is formed on one wall surface 2 that constitutes the corner 1. The second base layer 8 may be formed up to a position that covers the end face of the first base layer 7 on the corner 1 side.

[0068] In the second base layer forming step S5, the base adjustment material is applied in the same manner as in the first base layer forming step S2, for example, by an operator using a trowel to smooth the base adjustment material. At this time, the flat surface S is formed on the ridge 15 of the base layer forming set block 100, so that the base adjustment material can be easily cut with the trowel during work, improving workability, and suppressing the bulging of the corners of the formed second base layer 8, allowing the second base layer 8 to be formed with a uniform thickness overall.

[0069] 8, the nail P is removed from the other wall surface 3, and then the base layer forming set block 100 is removed from the other wall surface 3. At this time, since at least the attachment portion 11 of the base layer forming set block 100 is formed from a resin material that has releasability against the base adjustment material, it can be removed from the end face of the second base layer 8 without destroying the shape of the end face of the formed second base layer 8. Thereafter, the formed second base layer 8 is hardened.

[0070] Next, as the tile attachment process S7 shown in Figure 8, as shown in Figure 11, an adhesive layer 9 is formed on each of the first base layer 7 and the second base layer 8 formed on the corner 1, and tiles T are attached to one wall surface 2 and the other wall surface 3 of the corner 1, respectively.

[0071] According to the above-described tile attaching method, the protruding width from the corner 1 of the setting surface 11A of the setting block 100 for forming the base layer is used as an indicator to apply a base adjustment material to one wall surface 2 and the other wall surface 3 that constitute the corner 1, thereby forming the first base layer 7 and the second base layer 8 of accurate thickness. Then, by attaching the tiles T to the first base layer 7 and the second base layer 8 via an adhesive layer, the tiles T that cover the corner 1 can be provided at predetermined positions with high accuracy, and an aesthetically pleasing tiled surface with few steps between adjacent tiles T can be formed.

[0072] As described above, in the connected structure of panel members 10 using the joint member 20A of this embodiment, it is possible to shorten the length of each panel member 10, making it easier to transport the panel members 10 without using large trucks, etc. Also, while suppressing the occurrence of warping in the panel members 10, it is possible to connect the panel members 10 on-site and use them as a marking block 100 for forming a base layer.

[0073] Specifically, the length of the panel member 10 is preferably 1410 mm or less, which allows it to be loaded horizontally on the bed of a light vehicle, and more preferably 1100 mm. This makes it possible to easily transport the panel member 10. Furthermore, by shortening the length of each panel member 10, the weight can be reduced even with the same number of packaging as a long panel member, making it easier to transport and handle on-site, and improving work efficiency.

[0074] The present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. In the above embodiment, an example is given of the application of the present invention to a set block for forming a base layer, however, the joint member to which the present invention is applied is not limited to such set blocks, but can be widely used in cases where one panel member made of extruded hollow resin is connected to another panel member, such as a baseboard that is attached along a recessed corner between a floor surface and a wall surface.

[0075] Furthermore, the joint member to which the present invention is applied is not necessarily limited to the above-mentioned linear (I-shaped) joint member that linearly connects one panel member to another panel member.

[0076] For example, the present invention can be applied to a connected structure in which one panel member 30A and another panel member 30B as shown in Figure 15 are connected using a joint member 20B as shown in Figures 12, 13 and 14.

[0077] Fig. 12 is a plan view showing the configuration of joint member 20B. Fig. 13 is a side view showing the configuration of joint member 20B. Fig. 14 is a cross-sectional view of joint member 20B taken along line segment DD shown in Fig. 12. Fig. 15 is a perspective plan view showing a joint structure of panel members in which one panel member 30A and the other panel member 30B are connected via joint member 20. In the following description, the same parts as those of joint member 20A will not be described and will be denoted by the same reference numerals in the drawings.

[0078] Specifically, as shown in Figures 12, 13 and 14, this joint member 20B has a bent (L-shaped) shape extending toward one side and the other side in the direction in which one insertion portion 21 and the other insertion portion 22 intersect with each other (orthogonal in this embodiment) on either side of the boundary C.

[0079] Moreover, one plug portion 21 and the other plug portion 22 have a symmetrical shape with respect to a boundary C. There is no protrusion 25 at the center (boundary C) of the joint member 20B, and one plug portion 21 and the other plug portion 22 have a shape bent at a predetermined angle (90° in this embodiment) with the boundary C in between.

[0080] A connecting structure of panel members using a joint member 20B having the above-mentioned configuration is formed by inserting one insertion portion 21 into a hollow hole H3 provided inward from the end of one panel member 30A, and inserting the other insertion portion 22 into a hollow hole H3 provided inward from the end of the other panel member 30B, as shown in Figure 15.

[0081] As a result, the panel member connection structure of this embodiment has a structure in which one panel member 30A and the other panel member 30B are connected via the joint member 20B with their ends butted against each other. The ends of the one panel member 30A and the other panel member 30B are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction so as to butt against each other.

[0082] In the joint member 20B of this embodiment, the first plate portion 23 and the second plate portion 24 are provided with tapered portions 23b, 24b, making it possible to easily insert the tapered portions 23b, 24b of the one insertion portion 21 and the other insertion portion 22 into the hollow hole H3 of the one panel member 30A and the other panel member 30B.

[0083] In addition, in the joint member 20B of this embodiment, the straight portions 23a, 24a are provided on the first plate portion 23 and the second plate portion 24 described above, so that the straight portions 23a, 24a of the one insertion portion 21 and the other insertion portion 22 can be inserted without gaps into the hollow holes H3 of the one panel member 30A and the other panel member 30B. Also, the inserted state can be stably maintained.

[0084] Furthermore, in the joint member 20B of this embodiment, the end of one panel member 30A abuts against the insertion portion 22 of the other panel member, and the end of the other panel member 30B abuts against the insertion portion 21 of the other panel member, at the above-mentioned boundary C, thereby making it possible to properly butt the end of one panel member 30A and the end of the other panel member 30B together at the center (boundary C) of the joint member 20B.

[0085] It should be noted that, although the above-mentioned joint members 20A, 20B both have an L-shaped cross-sectional shape consisting of the first plate portion 23 and the second plate portion 24, they are not necessarily limited to such a cross-sectional shape and may have, for example, a T-shape or U-shape cross-sectional shape. [Explanation of symbols]

[0086] DESCRIPTION OF SYMBOLS 1... Corner 2... One wall surface 3... The other wall surface 7... First base layer 8... Second base layer 10... Panel member 10A... One panel member 10B... The other panel member 11... Attachment portion 11A... Timber surface 12... Inclined portion 13... Support portion 15... Ridge portion 16... Groove 20A, 20B... Joint member 21... One insertion portion 22... The other insertion portion 23... First plate portion 23a... Straight portion 23b... Tapered portion 24... Second plate portion 24a... Straight portion 24b... Tapered portion 25... Projection portion 30A... One panel member 30B... The other panel member C... Boundary H1, H2, H3... Hollow hole

Claims

1. A joint member that connects one panel member and another panel member made of extruded hollow resin in a state where the ends of the one panel member and the other panel member are butted against each other, one insertion portion to be inserted into a hollow hole provided on the inside from an end portion of the one panel member; and a second insertion portion that is inserted into a hollow hole provided on the inside from the end portion of the second panel member, The one insertion portion has a shape in which the one insertion portion extends toward one side and the other insertion portion extends toward the other side across a boundary between the one insertion portion and the other insertion portion, The one insertion portion and the other insertion portion each have a straight portion having a constant width in a direction extending from the boundary, a tapered portion having a width gradually decreasing from the straight portion toward a tip, and a first plate portion and a second plate portion folded across a folding line extending from the boundary toward each tip, A joint member, wherein the first plate portion and the second plate portion each have the straight portion and the tapered portion.

2. 2. The joint member according to claim 1, wherein the one insertion portion and the other insertion portion have a shape extending linearly toward one side and the other side across the boundary.

3. A protrusion is provided at the boundary, The joint member according to claim 2, characterized in that the protrusion portion is provided protruding from a surface of either the first plate portion or the second plate portion opposite to a side on which the other plate portion is located.

4. The joint member according to claim 1, wherein the one insertion portion and the other insertion portion have a shape extending toward one side and the other side in a direction intersecting with each other across the boundary.

5. A panel member connection structure in which one panel member and another panel member made of extruded hollow resin are butted against each other at their ends and connected to each other via a joint member, A connecting structure of panel members, comprising the joint member according to any one of claims 1 to 4.

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