Joint structure

Abstract

To provide a new structure that allows for easier and more appropriate joining of sheet materials without the need for special connecting hardware. [Solution] The joint portion 2 of one plate material 1 has a one-side abutting surface 2a and a male part 2b. The joint portion 4 of the other plate material 3 has a other-side abutting surface 4a that abuts against the one-side abutting surface 2a and a female part 4b that receives the male part 2b from below. The male part 2b is provided with a notch 2g, the width of which is narrower on the protruding end 2e side and wider on the base 2f side. The female part 4b is composed of a recess 4c whose planar contour shape follows the planar outer shape of the male part. When the joint portion 4 of the other plate material 3 is superimposed on the male part 2b such that the recess 4c is filled by the male part 2b, the one-side abutting surface 2a and the other-side abutting surface 4a abut against each other.

Description

Technical Field

[0001] The present invention relates to an improvement in the joint structure between plate materials constituting eaves, counters, etc. in houses and the like.

Background Art

[0002] An example of a conventional structure for joining plate materials constituting eaves, counters, etc. in houses and the like is shown in FIG. 12.

[0003] In the figure, reference numeral 100 denotes one plate material, reference numeral 101 denotes the other plate material, reference numeral 102 denotes an indentation formed on the back side with respect to the joint end thereof, and reference numeral 103 denotes a connecting fitting.

[0004] The connecting fitting 103 extends a bolt 103a between both plate materials 100 and 101 through the indentation 102. The connecting fitting 103 has a nut portion 103b located in the indentation 102 of one plate material 100 and a nut portion 103b located in the indentation 102 of the other plate material 101, respectively. When the bolt 103a is tightened, the distance between the two nut portions 103b is narrowed by the structure of the indentation 102 and the nut portion 103b, whereby the side surfaces (wood ends) are abutted at the joint portion of both plate materials 100 and 101.

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the conventional structure requires the operation of tightening the connecting fitting and the bolt 103a, and after connecting both plate materials 100 and 101 as described above and integrating them to have a corresponding weight, it forces to install both plate materials 100 and 101 upside down on a wall base material or the like constituting a waist wall.

[0006] The main problem to be solved by the present invention is to provide a new structure that can more easily and appropriately join this type of plate materials without using a special connecting fitting. [Means for solving the problem]

[0007] In order to achieve the above objective, the present invention provides a joining structure for board materials that are arranged horizontally and installed with their board surfaces facing each other, On the other hand, the joint of the plate material has a one-sided contact surface and a male part that protrudes horizontally from this one-sided contact surface. The joint of the other plate material has a contact surface on the other side that abuts against the contact surface on the one side, and a female part that receives the male part from below. The male part has an upper surface located below the design surface of the one plate and a lower surface that is flush with the back surface of the one plate, and has a notch at its protruding end that is open and continues toward its base, the width of which is narrower toward the protruding end and wider toward the base. The female portion is formed on the back side of the other plate portion and is open outward on the other contact surface, and is composed of a recess whose plan view contour shape follows the plan view outer shape of the male portion. The design is such that when the joint portion of the other plate material is placed on top of the male portion so that the recess is filled by the male portion, the one contact surface and the other contact surface abut against each other.

[0008] One embodiment of this invention is that the joint portion of the other plate material has a fitting portion that fits into the notch of the male portion when the joint portion of the other plate material is superimposed on the male portion such that the recess is filled by the male portion.

[0009] One embodiment of this invention is to form a through-hole for a screw or bolt in the space between the notch and the base of the male part.

[0010] Furthermore, the one-sided contact surface of one plate material and the other-sided contact surface of the other plate material are abutted together on a hypothetical first straight line connecting the outer and inner corners of a corner that forms a right angle in a plan view of the wall, The male part has a first alignment edge on one side of the notch, which can be positioned along one equal side of a virtual right-angled isosceles triangle, with the first straight line as the base, a virtual second straight line along the width direction of the wall connecting the inner corner and the outer corner side of the wall as one equal side, and a virtual third straight line along the outer corner side of the wall connecting the outer corner and the second straight line as the other equal side. Furthermore, one embodiment of this invention is to provide a second alignment edge on the other side of the notch, which can be positioned along the other equilateral side of the isosceles triangle. [Effects of the Invention]

[0011] According to this invention, these types of plate materials can be easily and appropriately joined together without the need for special connecting fittings. In other words, by positioning one plate in a predetermined location and fixing it, and then overlapping the joint of the other plate onto the male part of the first plate so that the recess is filled by the male part of the first plate, it becomes possible to position and fix the other plate in a predetermined location. Furthermore, it becomes possible to join and install one plate material to another plate material in such a state that the other side contact surface of the other plate material is in contact with the one side contact surface of the first fixed plate material without any gaps. Furthermore, due to the shapes of the male and female recesses, once the male part of one plate is fitted into the female recess of the other plate, the joint will not be broken even if a force is applied that separates the two plate horizontally. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view of one of the plate materials constituting the joint structure according to the embodiment. [Figure 2] Figure 2 is a perspective view of the aforementioned plate material as seen from the back side. [Figure 3] Figure 3 is a plan view of the joint of the aforementioned plate material. [Figure 4] FIG. 4 is a perspective configuration diagram of the other plate material constituting the joining structure according to the embodiment. [Figure 5] FIG. 5 is a perspective configuration diagram of the other plate material viewed from the back side. [Figure 6] FIG. 6 is a plan configuration diagram (FIG. a) of the joint portion of the other plate material and a side configuration diagram (FIG. b) of FIG. a viewed from below. [Figure 7] FIG. 7 is a perspective configuration diagram showing the separation of the wall base material and one plate material. [Figure 8] FIG. 8 is a plan configuration diagram of the main part of one plate material (FIG. a) and the main part of the wall base material (FIG. b). [Figure 9] FIG. 9 is a perspective configuration diagram showing the state where one plate material is positioned on the wall base material. [Figure 10] FIG. 10 is a perspective configuration diagram showing the state where one plate material and the other plate material are positioned on the wall base material. [Figure 11] FIG. 11 is a plan configuration diagram of the main part showing the state where one plate material and the other plate material are positioned on the wall base material. [Figure 12] FIG. 12 is a main part configuration diagram showing a conventional example.

MODE FOR CARRYING OUT THE INVENTION

[0013] Hereinafter, typical embodiments of the present invention will be described based on FIGS. 1 to 11. The joining structure according to this embodiment is a joining structure between plate materials constituting eaves, counters, etc. in a house or the like. More specifically, such a joining structure is a joining structure between plate materials installed with their plate surfaces arranged horizontally. Such a joining structure can be used for joining between plate materials that become eaves, between plate materials that become counters, or between a plate material that becomes an eave and a plate material that becomes a counter.

[0014] FIGS. 1 to 3 show a configuration example of one plate material 1. One plate material 1 has a width, a length, and a thickness. Further, it has a design surface 1a as the plate surface arranged horizontally, a back surface 1b facing the design surface 1a, and a side surface 1c in the thickness direction extending between the design surface 1a and the back surface 1b. One plate material 1 is configured to be joined to the other plate material 3 at one end portion 1d thereof. A joint portion 2 of the one plate material 1 is formed at this one end portion 1d. The joint portion 2 of the one plate material 1 has one-side contact surface 2a and a male portion 2b protruding horizontally from the one-side contact surface 2a. A portion of the side surface 1c that constitutes one end portion 1d of the one plate material 1 serves as the one-side contact surface 2a. In the illustrated example, the one-side contact surface 2a is formed along a virtual straight line that intersects one of the two side surfaces 1c along the length direction of the one plate material 1 at an angle of 45 degrees. The male portion 2b has an upper surface 2c located below the design surface 1a of the one plate material 1 and a lower surface 2d flush with the back surface 1b of the one plate material 1, and has a notch 2g that is open at the protruding end 2e of the male portion 2b and continues to the base 2f side. At the same time, as shown in FIG. 3, the width 2h of the notch 2g (dimension in the direction orthogonal to the continuous direction of the notch 2g) is narrow on the protruding end 2e side and wide on the base 2f side.

[0015] The male portion 2b integrates the base 2f with the one-side contact surface 2a and呈 a plate shape protruding from the one-side contact surface 2a. As shown in FIG. 3, in the illustrated example, between the male portion 2b and a corner 1e where the male portion 2b contacts one of the two side surfaces 1c along the length direction of the one plate material 1 and the one-side contact surface 2a, and between the one-side contact surface 2a and a corner 1e where the male portion 2b contacts the other of the two side surfaces 1c along the length direction of the one plate material 1, intervals 1f are respectively formed. Also, the male portion 2b is formed to have a thickness that is substantially half of the thickness of the one plate material 1.

[0016] As shown in FIG. 3, the notch 2g is formed at a middle position in the width direction of the male portion 2b orthogonal to the protruding direction of the male portion 2b. The notch 2g is formed to penetrate the male part 2b in the vertical direction. The innermost part 2i of the notch 2g is located midway along the protruding direction of the male part 2b. The notch 2g is formed to have an inner recess 2i parallel to one side contact surface 2a, an open area 2j opposite to it, and left and right side portions 2k connecting the inner recess 2i and the open area 2j. The distance between the left and right side portions 2k gradually increases as it approaches the inner depth portion 2i. As a result, as shown in Figure 3, the width 2h of the notch 2g is narrower on the protruding end 2e side and wider on the base portion 2f side.

[0017] In the illustrated example, wood or wood-based material is pre-cut to obtain a single board 1. Due to the tools used for this pre-cutting, rounded contour portions 2m are formed on the left and right sides of the base portion 2f of the male portion 2b, on the left and right sides of the open portion 2j of the notch 2g, and on the left and right sides of the inner portion 2i (see Figure 3).

[0018] Figures 4 to 6 show examples of the configuration of the other plate material 3. On the other hand, the plate material 3 has width, length, and thickness. It also has a design surface 3a which is arranged horizontally as the plate surface, a back surface 3b which is opposite to the design surface 3a, and a side surface 3c in the thickness direction which extends between the design surface 3a and the back surface 3b. The other plate material 3 is joined to the other plate material 1 at one end 3d. A joint portion 4 of the other plate material 3 is formed at this end 3d.

[0019] The joint portion 4 of the other plate material 3 has a other contact surface 4a that abuts against the one contact surface 2a from the side, and a female portion 4b that receives the male portion 2b from below. In the illustrated example, the other contact surface 4a is formed to follow a hypothetical straight line that intersects at a 45-degree angle with one of the two side surfaces 3c along the longitudinal direction of the other plate material 3.

[0020] The female portion 4b is formed on the back surface 3b side of the other plate material 3 and is open outward on the other side contact surface 4a of the other plate material 3, and is composed of a recess 4c whose plan view contour shape follows the plan view outer shape of the male portion 2b. The female portion 4b is formed by carving into the other plate material 3.

[0021] The recess 4c is recessed from bottom to top. The innermost part 4d of the recess 4c is located below the design surface 3a of the other panel 3. In the illustrated example, the recess 4c is formed to have a depth equal to half the thickness of the other panel 3 (see Figure 6(b)). In the illustrated example, the recess 4c has an opening 4e that cuts out a portion of the other contact surface 4a.

[0022] Furthermore, the joint portion 4 of the other plate material 3 has a fitting portion 4f that protrudes into the recess 4c on the side facing the open portion 4e. The fitting portion 4f is made up of a part of the back surface 3b of the other plate material 3 that has not been carved out, and its outer shape forms part of the contour shape of the recess 4c.

[0023] The plan view contour shape of the mating portion 4f is complementary to or diametrically opposed to the plan view contour shape of the notch 2g of the male portion 2b. That is, the mating portion 4f has a wide head portion 4g on the side facing the open portion 4e and a narrow neck portion 4h on the opposite side (see Figure 6). Furthermore, the plan view contour shape of the left and right inner portions 4i extending between the fitting portion 4f and the open portion 4e substantially follows the plan view outer shape of the left and right notches 2g of the male portion 2b, except for the curved contour portion 2m.

[0024] In other words, as is clear from each figure, the plan view outline shape of the male part 2b beyond the one-sided contact surface 2a and the plan view contour shape of the recess 4c of the female part 4b behind the other-sided contact surface 4a are substantially the same size and shape, and are complementary in nature.

[0025] As shown in Figures 7 to 9, one board 1 is positioned and fixed at a predetermined location on a support material for boards, such as the wall base material Wd of a wall W that will become a low wall. Then, as shown in Figures 10 and 11, the joint 4 of the other board 3 is superimposed on the male part 2b of the one board 1 so that the male part 2b of the one board 1 fits from below into the recess 4c which serves as the female part 4b of the other board 3. This makes it possible to position and fix the other board 3 at a predetermined location on the wall base material Wd. In Figure 9, the symbol Sa indicates a screw that is driven from below into one board 1 through the wall base material Wd to fix one board 1 Sa to the wall base material Wd, and in Figure 10, the symbol Sa indicates a screw that is driven from below into the other board 3 through the wall base material Wd to fix the other board 3 to the wall base material Wd.

[0026] The base 2f of the male part 2b can fit into the opening 4e of the recess 4c as the female part 4b, and the plan view contour shape of the recess 4c as the female part 4b beyond the opening 4e follows the plan view contour shape of the male part 2b beyond the base 2f. Therefore, by superimposing, the male part 2b can fit into the recess 4c as the female part 4b and can be completely fitted into the recess 4c without any gaps. In other words, by doing so, it becomes possible to join and install one plate 1 and the other plate 3 in such a state that the other contact surface 4a of the other plate 3 is in contact with the one contact surface 2a of the first fixed plate 1 without any gaps. Furthermore, due to the shape of the male part 2b and the recess 4c which is the female part 4b, once the male part 2b of the first fixed plate 1 is placed in the recess 4c which is the female part 4b of the other plate 3, the joint will not come undone even if a force is applied in a direction that separates the first plate 1 and the other plate 3 in the horizontal direction. More specifically, the male part 2b is received from below into the recess 4c, which is the female part 4b, until the upper surface 2c of the male part 2b abuts against the innermost part 4d of the recess 4c, which is the female part 4b. The thickness of the male part 2b and the depth of the recess 4c are set to be equal, and the design surface 1a of one plate material 1 and the design surface 3a of the other plate material 3 become flush as a result of the joining.

[0027] Furthermore, in this embodiment, the male portion 2b can be fastened to the wall base material Wd that constitutes the upper part of the wall W by screws or bolts between the notch 2g and the base portion 2f. In the illustrated example, a through-hole 2n for a screw Sb is formed in the male part 2b at a location on a virtual center line x (see Figure 8) along the length direction of one of the board members 1. This allows the board member 1 to be temporarily fixed in place by driving the screw Sb into the wall base material Wd from above through this through-hole 2n, starting from a state where the board member 1 is positioned on the wall base material Wd. As a result, in this embodiment, in the temporary fixing state, it is possible to make fine adjustments to the one plate material 1 centered on the screw Sb that was driven in as described above using the through hole 2n (fine adjustment of the direction of the arrow in Figure 9).

[0028] Furthermore, in this embodiment, the one-sided contact surface 2a of the one-sided plate material 1 and the other-sided contact surface 4a of the other-sided plate material 3 are abutted together on a virtual first straight line L1 connecting the outer corner Wb and the inner corner Wc of the corner Wa that forms a right angle in a plan view of the wall W (see Figures 8 to 10). In addition, the male part 2b has a first alignment edge 2o on one side of the notch 2g, and a second alignment edge 2p on the other side of the notch 2g. The first alignment edge 2o is a straight line in plan view that can be positioned along one equilateral side T2 of the hypothetical right-angled isosceles triangle T described later, and the second alignment edge 2p is a straight line in plan view that can be positioned along the other equilateral side T3 of the isosceles triangle T. The aforementioned right-angled isosceles triangle T is a hypothetical triangle conceivable on the wall base material Wd, with the first line L1 as its base T1, a hypothetical second line L2 along the width direction of the wall W connecting the inner corner Wc and the outer surface of the wall W in front of the first line L1 (on the side of the installation area of ​​the other board material 3, which is in front of the installation area of ​​one board material 1 that straddles the first line L1), and a hypothetical third line L3 along the wall surface of the wall W connecting the outer corner Wb and the second line L2 in front of the first line L1, and the other equilateral side T3.

[0029] In this embodiment, by positioning one of the boards 1 on the wall base material Wd such that the first alignment edge 2o is along one equal side T2 of the virtual right-angled isosceles triangle T, and the second alignment edge 2p is along the other equal side T3, it becomes possible to accurately install one of the boards 1 in a predetermined position in the design. Typically, a second straight line L2, corresponding to one equilateral side T2, is drawn on the wall substrate Wd by marking, and the first alignment edge 2o of the male part 2b is aligned with it. Then, by placing the joint 4 of the other plate 3 over the male part 2b of the one plate 1, which is installed in this manner, so that the male part 2b of the other plate 1 is received from below into the recess 4c which serves as the female part 4b, the other plate 3 can also be accurately installed in the predetermined position according to the design.

[0030] As shown in Figure 11, when the male part 2b of the plate material 1 is fully inserted into the recess 4c which serves as the female part 4b, the fitting portion 4f of the recess 4c which serves as the female part 4b fits into the notch 2g of the male part 2b so as to fill the notch 2g without any gaps. At the same time, outside the notch 2g, the first alignment edge 2o is in close contact with one of the left and right inner parts 4i of the recess 4c which serves as the female part 4b, and the second alignment edge 2p is in close contact with the other of the left and right inner parts 4i of the recess 4c which serves as the female part 4b, so that the male part 2b and the female part 4b fit together firmly.

[0031] Naturally, the present invention is not limited to the embodiments described above, but includes all embodiments that can achieve the objectives of the present invention. [Explanation of symbols]

[0032] W Wall Wa corner Wb outer corner Wc inner corner Wd Wall underlayment Sa, Sb Bis x center line L1 1st straight line L2 2nd straight line L3 3rd straight line T right angled isosceles triangle T1 Bottom T2 One side is equilateral T3 stir-fry, equal sides 1 One side board 1a Design surface 1b back side 1c side 1d One end 1e Corner 1f interval 2 joint 2a One side contact surface 2b male part 2c Top surface 2d bottom surface 2e Protruding end 2f base 2g notch 2h width 2i deep inside 2j Opening 2k side 2m curved contour 2n through hole 2o First alignment edge 2p Second alignment edge 3 Other plate material 3a Design surface 3b back side 3c side 3d one end 4 Joint 4a Other side contact surface 4b Female part 4c recess 4d inner depths 4e Open area 4f Fitting section 4g head 4h Neck 4i inner side

Claims

1. A joining structure for board materials that are installed with their board surfaces arranged horizontally, On the other hand, the joint of the plate material has a one-sided contact surface and a male part that protrudes horizontally from this one-sided contact surface. The joint of the other plate material has a contact surface on the other side that abuts against the contact surface on the one side, and a female part that receives the male part from below. The male part has an upper surface located below the design surface of the one plate and a lower surface that is flush with the back surface of the one plate, and has a notch at its protruding end that is open and continues toward its base, the width of which is narrower toward the protruding end and wider toward the base. The female portion is formed on the back side of the other plate portion and is open outward on the other contact surface, and is composed of a recess whose plan view contour shape follows the plan view outer shape of the male portion. A joint structure in which, when the joint portion of the other plate material is superimposed on the male portion such that the recess is filled by the male portion, the one-sided contact surface and the other-sided contact surface abut against each other.

2. The joint structure according to claim 1, wherein the joint portion of the other plate material has a fitting portion that fits into the notch of the male portion when the joint portion of the other plate material is superimposed on the male portion such that the recess is filled by the male portion.

3. The joining structure according to claim 1, wherein a through-hole for a screw or bolt is formed in the portion between the notch and the base of the male portion.

4. The one contact surface of one plate and the other contact surface of the other plate are abutted together on a hypothetical first straight line connecting the outer and inner corners of a corner that forms a right angle in a plan view of the wall, The male part has a first alignment edge on one side of the notch, which can be positioned along one equal side of a virtual right-angled isosceles triangle, with the first straight line as the base, a virtual second straight line along the width direction of the wall connecting the inner corner and the outer corner side of the wall as one equal side, and a virtual third straight line along the outer corner side of the wall connecting the outer corner and the second straight line as the other equal side. The joining structure according to claim 1, further comprising a second alignment edge on the other side of the notch, which can be positioned along the other equilateral side of the isosceles triangle.

Images