Timber connecting hardware and wooden buildings using the same

Abstract

To provide a wood connection fitting for reducing a work time for preventing wood splitting.SOLUTION: A second connection fitting 12 is provided with: multiple wood fixing pin passing holes 12a1-12a9 for passing multiple wood fixing pins 14 penetrating a diagonal member 5; and metal fitting mutual connection pin passing holes 12b for passing metal fitting mutual connection pins 13 passed through the diagonal member 5 and a first connection fitting 11. Between the wood fixing pin passing holes 12a1-12a9 and the metal fitting mutual connection pin passing holes 12b, splitting preventive pin passing holes 12c, 12c are provided for passing splitting preventive pins 15 penetrating the diagonal member 5 on the inner side from the most outside wood fixing pin passing holes 12a1, 12a9, at a position separated from a straight line extended in a longitudinal direction of the diagonal member 5 from the center of the metal fitting mutual connection pin passing hole 12b in respective directions on both sides centering around the straight line by a length L1 of 1.5 times or more of a diameter R1 of the metal fitting mutual connection pin 13 or of an inner diameter r3 of the metal fitting mutual connection pin passing hole 12b.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a wooden connecting hardware that prevents wood from splitting, and to a wooden building that uses the wooden connecting hardware. [Background technology]

[0002] In wooden joints in wooden buildings, a tenon on the end face of one piece of wood is inserted into a mortise formed in the other piece of wood that makes up the wooden joint, and plate-shaped reinforcing metal fittings are joined by driving linear fasteners such as nails or wood screws into both continuous sides of the two pieces of wood.In the structure of such wooden joints in wooden buildings, in order to prevent splitting in the wood into which the linear fasteners have been driven, an invention has been proposed in which multiple anti-splitting screws (referred to as reinforcing shafts in Patent Document 2) that prevent splitting of the wood are screwed in a direction that intersects the direction of the wood grain of one piece of wood and is perpendicular to the linear fasteners (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4546492 [Patent Document 2] Patent No. 4948934 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the wood connecting hardware disclosed in the above-mentioned Patent Documents 1 and 2, in order to prevent the wood from splitting, it is necessary to screw in a split prevention screw (Patent Document 1) or a reinforcing shaft with a spiral ridge (Patent Document 2) in addition to linear fasteners such as nails or wood screws that secure the plate-shaped reinforcing hardware, which is the wood joining hardware, to the wood, which increases the work time.

[0005] Furthermore, the anti-splitting screw device (Patent Document 1) or the reinforcing shaft with a spiral ridge (Patent Document 2) described in the above-mentioned Patent Documents 1 and 2 are both thought to suggest wood screws, but since linear fasteners such as nails and wood screws generally have a small diameter, when screwing them in to improve strength, more than a dozen may be required depending on the expected load, which also increases the work time.

[0006] Furthermore, the anti-splitting screw devices (Patent Document 1) or reinforcing shafts (Patent Document 2) described in the above-mentioned Patent Documents 1 and 2 all need to be screwed in in a direction perpendicular to the linear fastener, and since the installation direction is different from that of the linear fastener, there is a risk that subsequent installation will be difficult if the installation procedure is incorrect, and there are problems with installation ease.

[0007] Therefore, the present invention was made with a focus on these problems, and aims to provide a wooden connecting hardware that can shorten the work time required to prevent wood from splitting and improve workability, and a wooden building that uses such a wooden connecting hardware. [Means for solving the problem]

[0008] In order to solve the problem, the wooden connecting hardware of the present invention is a wooden connecting hardware that connects a first connecting hardware that is fixed to one piece of wood with a plurality of linear fasteners and a second connecting hardware that is fixed to the other piece of wood with a plurality of linear fasteners using a metal connecting pin, and is characterized in that between the plurality of linear fastener passage positions on the second connecting hardware through which the plurality of linear fasteners are respectively passed and the metal connecting pin passage holes through which the metal connecting pins are passed, anti-splitting pin passage holes are provided on both sides of a straight line extending from the center of the metal connecting pin passage hole in the longitudinal direction of the other piece of wood, at a distance of 1.5 times or more than the diameter of the metal connecting pin or the inner diameter of the metal connecting pin passage hole. In addition, the wood connecting hardware of the present invention is also characterized in that the anti-splitting pin insertion hole is located inside the outermost linear fastener insertion position among the multiple linear fastener insertion positions. Furthermore, the wood connecting hardware of the present invention is also characterized in that the distance between the linear fastener insertion position in the second connecting hardware and the anti-splitting pin insertion hole is at least five times the diameter of the linear fastener. In addition, the wood connecting hardware of the present invention is also characterized in that the longitudinal distance of the other wood between the metal-to-metal connecting pin hole and the anti-splitting pin hole in the second connecting hardware is greater than the longitudinal distance of the other wood between the linear fastener insertion position and the anti-splitting pin hole. Furthermore, the wooden building of the present invention is a wooden building that uses any of the wooden connecting hardware described above, wherein the one piece of wood is a cross member and a column member, and the first connecting hardware is fixed to the joint between the cross member and the column member, while the other piece of wood is a diagonal member connected to the joint between the cross member and the column member, and the second connecting hardware is fixed to the end of the diagonal member with the linear fastener, while the anti-splitting pin is passed through the anti-splitting pin through-holes of the diagonal member and the second connecting hardware, and the first connecting hardware and the second connecting hardware are connected by the connecting pin between the hardware. [Effects of the Invention]

[0009] In the wood connecting hardware of the present invention, between the linear fastener insertion position of the second connecting hardware to be attached to the other piece of wood and the metal connecting pin insertion hole, there are provided anti-splitting pin insertion holes on both sides of a straight line extending from the center of the metal connecting pin insertion hole in the longitudinal direction of the other piece of wood, at a distance from the straight line that is 1.5 times or more the diameter of the metal connecting pin or the inner diameter of the metal connecting pin insertion hole. Therefore, when one piece of wood connected by a wooden connecting hardware becomes separated from the other piece of wood due to an earthquake or other reason and a tensile force is applied to the first connecting hardware and the second connecting hardware that make up the wooden connecting hardware, the second connecting hardware will exert a pulling effect that draws the anti-splitting pins inserted into the anti-splitting pin through-holes of the second connecting hardware closer to each other, thereby preventing the other piece of wood to which the second connecting hardware is fixed from splitting in the part between the connecting pin through-holes between the hardware and the linear connector through-hole position.This makes it possible to prevent the wood from splitting without the need to screw in anti-splitting screws, thereby reducing the time required for the work. In addition, the metal-to-metal connecting pins, linear connectors, and anti-splitting pins that are driven into the second metal are all installed in the same direction, so even if the installation procedure is incorrect, they can be easily installed later, improving workability. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a front view showing a state in which a wooden connector hardware according to an embodiment of the present invention is used. [Figure 2] FIG. 2 is an enlarged front view of a main part of part A in FIG. [Figure 3] This is an oblique view showing the assembly, connection, and arrangement of the first connecting hardware, second connecting hardware, inter-metal connecting pins, anti-splitting pins, wood fixing pins, beam support hardware, bolts, etc. that make up the wood connecting hardware of an embodiment of the present invention. [Figure 4] This is an oblique view showing the state in which the first connecting hardware and the second connecting hardware that make up the wood connecting hardware of an embodiment of the present invention are connected by a connecting pin between the hardware, with other components such as anti-splitting pins and wood fixing pins omitted. [Figure 5] 1 is a perspective view of a first connecting hardware that constitutes an embodiment of a wooden connecting hardware according to the present invention. FIG. [Figure 6] 1(a) to 1(d) are a plan view, a front view, a bottom view, and a left side view, respectively, of a first connector hardware that constitutes a wooden connector hardware according to an embodiment of the present invention. [Figure 7] FIG. 2 is a perspective view of a second connecting hardware that constitutes an embodiment of a wooden connecting hardware according to the present invention. [Figure 8] 1(a) to 1(d) are a plan view, a front view, a bottom view, and a left side view, respectively, of a second connector hardware that constitutes a wooden connector hardware according to an embodiment of the present invention. [Figure 9] This figure shows the state in which the second connecting hardware that constitutes an embodiment of the timber connecting hardware of the present invention has been inserted into a slit provided in the diagonal member, and is an explanatory diagram showing the locations in the diagonal member where cracking is likely to occur and the positional relationship of each pin-through hole. [Figure 10] This is an explanatory diagram showing the compressive force acting on the second connecting hardware that constitutes an embodiment of a wooden connecting hardware according to the present invention when the second connecting hardware is pulled, in the direction of a straight line extending from the center of the anti-splitting pin hole in the longitudinal direction of the diagonal member, and the direction of the resistance force acting on the anti-splitting pin due to that compressive force. [Figure 11] This is an explanatory diagram showing a state in which an external force acts to cause a crack in the diagonal member when a comparative example is used in which a crack prevention pin is not inserted between the joint between the beam and column member and the diagonal member. [Figure 12] This is an explanatory diagram showing a state in which an external force is acting between the joint between the beam and column material and the diagonal member in an embodiment of a wooden connecting hardware according to the present invention, thereby preventing the diagonal member from splitting. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, a wooden connector 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Note that the embodiment described below, including its dimensions, is merely an example of the present invention, and the present invention is not limited to the embodiment described below, and can be modified as appropriate within the scope of the technical concept of the present invention.

[0012] <Configuration of the wooden connector 1 according to the embodiment> Fig. 1 is a front view showing a timber connector 1 according to an embodiment of the present invention in use, and Fig. 2 is an enlarged front view of a main portion of the timber connector 1 in use at the joint between a beam 3, a column 4, and a diagonal member 5, which is part A in Fig. 1. In Fig. 1, the first and second connectors 11 and 12 that make up the timber connector 1 are shown with dashed lines because they are embedded in the slits of the beam 3, the column 4, the diagonal member 5, etc. and cannot be seen from the front. However, in Fig. 2, for ease of explanation, the beam 3, the column 4, the diagonal member 5, etc. are shown with dashed lines, and the first and second connectors 11 and 12 that make up the timber connector 1, the metal-to-metal connector pin 13, the linear connector (timber fixing pin 14), the splitting prevention pin 15, the splitting prevention screw 16, the beam support hardware 17, 18, etc. are shown with solid lines.

[0013] 1 and 2, the timber connecting hardware 1 of this embodiment is a hardware that connects a first connecting hardware 11, which is fixed to one piece of wood with multiple wood fixing pins 14, and a second connecting hardware 12, which is fixed to the other piece of wood with multiple wood fixing pins 14, by connecting the hardware with connecting pins 13. Here, one piece of wood is a cross member of a foundation 2 or a beam 3 and a column member 4, and the first connecting hardware 11 is fixed to the corner between the cross member and the column member 4, and the other piece of wood is a diagonal member 5 such as a brace that is connected to the corner between the cross member and the column member 4, and the second connecting hardware 12 is fixed to both ends of the diagonal member 5 with wood fixing pins 14. In this embodiment, as shown in Figure 2, similar to the inventions of the conventional Patent Documents 1 and 2 described above, the anti-splitting screw 16 is screwed close to the metal fitting connecting pin 13 in the diagonal member 5, and in addition to the function of preventing the diagonal member 5 from splitting by the wood connecting metal fitting 1 of the embodiment, the anti-splitting screw 16 also prevents the diagonal member 5 from splitting.

[0014] Figure 3 shows the assembly, connection, and arrangement of the first connecting hardware 11 and second connecting hardware 12, the metal-to-metal connecting pin 13, the anti-splitting pin 15, the wood fixing pin 14, the beam support hardware 17, 18, the bolt 19a, etc. that make up the wood connecting hardware 1 of an embodiment of the present invention, and Figure 4 shows the state in which the first connecting hardware 11 and the second connecting hardware 12 that make up the wood connecting hardware 1 of an embodiment are connected by the metal-to-metal connecting pin 13, with other components such as the anti-splitting pin 15 and the wood fixing pin 14 omitted.

[0015] As described above, the first connecting hardware 11 and second connecting hardware 12 that make up the timber connecting hardware 1 of this embodiment are plate-like hardware that are inserted into slits formed in the cross members, columns 4, and diagonal members 5 of the base 2 and beams 3 and fixed to the corresponding timber with wood fixing pins 14. In this embodiment, two connecting hardware are used in pairs, as shown in Figures 3 and 4. The pair of first connecting hardware 11, 11 is fixed to the cross members and columns 4 of the base 2 and beams 3 using beam support hardware 17, 18 and wood fixing pins 14, etc., as shown in Figure 3, while the pair of second connecting hardware 12, 12 is fixed to the diagonal members 5 with nine wood fixing pins 14, spaced apart from each other from the outside of the pair of first connecting hardware 11, 11.

[0016] Therefore, the cross members, columns 4, and diagonal members 5 of the base 2 and beam 3 are formed with slits, grooves, through-holes, etc. so that the first connecting hardware 11 and second connecting hardware 12, the metal-to-metal connecting pins 13, the wood fixing pins 14, the anti-splitting pins 15, the beam support hardware 17, 18, the bolts 19a, and the nuts 19b (see Figure 2), etc., which make up the wood connecting hardware 1 of this embodiment, can be positioned in their respective predetermined positions.

[0017] (First connecting hardware 11) Figure 5 is an oblique view of a first connecting hardware 11 that constitutes an embodiment of a wooden connecting hardware 1 according to the present invention, and Figures 6(a) to 6(d) are a plan view, a front view, a bottom view, and a left side view of the first connecting hardware 11, respectively.

[0018] The first connecting hardware 11 is a plate-shaped hardware that is fixed with multiple wood fixing pins 14 to the corners of the cross member of the base 2 or beam 3, which is one of the pieces of wood, and the column 4, and is made of a steel plate with the shape shown in Figures 5 and 6, etc., and is provided with two wood fixing pin holes 11a through which the wood fixing pins 14 that fix it to the beam 3 pass, and four wood fixing pin holes 11b through which the wood fixing pins 14 that fix it to the column 4 pass, as shown in Figure 2, etc., and is also provided with a metal connecting pin hole 11c for pin connection to the second connecting hardware 12 with a metal connecting pin 13.

[0019] In this embodiment, as shown in Fig. 2, the diameter R1 of the metal connection pin 13 is larger than the diameter R2 of the wood fixation pin 14, and therefore the r1 of the metal connection pin through hole 11c (see Fig. 6) is larger than the inner diameter r2 of the wood fixation pin through holes 11a and 11b (see Fig. 6). The metal connection pin 13 and the wood fixation pin 14 are inserted into the metal connection pin through hole 11c and the wood fixation pin through holes 11a and 11b with almost no gap between them, so R1 = r1 and R2 = r2, respectively, or the inner diameters r1 and r2 of the metal connection pin through hole 11c and the wood fixation pin through holes 11a and 11b are slightly larger than the diameter R1 of the metal connection pin 13 and the diameter R2 of the wood fixation pin 14 to facilitate insertion of the metal connection pin 13 and the wood fixation pin 14.

[0020] Here, the first connecting hardware 11 is fixed to a slit provided in the beam material 3 by a beam support hardware 17 embedded in the beam material 3 and a wood fixing pin 14 such as a drift pin, as shown in Figure 2, while it is fixed to a slit provided in the column material 4 by a beam support hardware 18 embedded in the column material 4 and a wood fixing pin 14.

[0021] (Second connecting hardware 12) Figure 7 is an oblique view of the second connecting hardware 12 that constitutes an embodiment of the wooden connecting hardware 1 according to the present invention, and Figures 8(a) to (d) are a plan view, a front view, a bottom view, and a left side view of the second connecting hardware 12, respectively.

[0022] The second connecting hardware 12, like the first connecting hardware 11, is made of steel plate having a predetermined thickness cut into a tapered shape as shown in Figure 8(b), and has, in its wider lower part, nine wood fixing pin holes 12a1 to 12a9 through which multiple wood fixing pins 14, which are linear fasteners that pass through the other piece of wood, the diagonal member 5, can be passed, while in its narrower upper part, a metal connecting pin hole 12b is provided through which a metal connecting pin 13 that passes through the first connecting hardware 11 can be passed, and between the wood fixing pin holes 12a1 to 12a9 and the metal connecting pin hole 12b, a pair of anti-splitting pin holes 12c, 12c are provided through which anti-splitting pins 15 that pass through the diagonal member 5 can be passed, respectively.

[0023] 7 and 8(b), the nine wood fixing pin holes 12a1 to 12a9 are arranged in a zigzag pattern in two upper and lower rows at regular intervals, with the upper row consisting of five wood fixing pin holes 12a1, 12a3, 12a5, 12a7, and 12a9, and the lower row consisting of four wood fixing pin holes 12a2, 12a4, 12a6, and 12a8. In this embodiment, multiple wood fixing pins 14 are used as linear fasteners to fasten the second connecting hardware 12 to the diagonal member 5, and therefore each of the multiple wood fixing pins 14 serves as a linear fastener insertion position.

[0024] In this embodiment, the wood fixing pins 14 passed through the wood fixing pin through holes 12a1-12a9 are the same as the wood fixing pins 14 used to fix the first connecting hardware 11 to the beams 3, the base 2, and the pillars 4, so the inner diameter r4 (see FIG. 8) of the wood fixing pin through holes 12a1-12a9 is the same as the inner diameter r2 (see FIG. 6) of the wood fixing pin through holes 11a, 11b of the first connecting hardware 11. In addition, the r3 (see FIG. 8) of the metal fitting connecting pin through hole 12b is the same as the r1 (see FIG. 6) of the metal fitting connecting pin through hole 11c of the first connecting hardware 11 through which the same metal fitting connecting pin 13 passes.

[0025] The pair of split prevention pin through holes 12c, 12c is provided in the space between the metal fitting connecting pin through hole 12b and the nine wood fixing pin through holes 12a1 to 12a9, at positions a length L1 that is 1.5 times or more the inner diameter r3 of the metal fitting connecting pin through hole 12b on both the left and right sides of a straight line CL that extends from the center of the metal fitting connecting pin through hole 12b in the longitudinal direction of the diagonal member 5, and further inward than the outermost wood fixing pin through holes 12a1, 12a9 among the multiple wood fixing pin through holes 12a1 to 12a9. The longitudinal direction of the diagonal member 5 is generally parallel to the grain direction of the diagonal member 5, but in reality the grain direction may vary slightly, so the pair of split prevention pin through holes 12c, 12c for passing therethrough the split prevention pins 15 that have passed through the diagonal member 5 may be slightly inclined relative to the grain direction.

[0026] The reason why a pair of split prevention pin holes 12c, 12c are provided between the metal fitting connecting pin hole 12b and the wood fixing pin holes 12a1 to 12a9 is that, as will be described later, when a large external force acts on the corner of the beam 3 and the column 4 such that the beam 3 is separated from the corner, the periphery of the metal fitting connecting pin hole 11c of the first connecting metal 11 through which the metal fitting connecting pin 13 passes and the periphery of the metal fitting connecting pin hole 12b of the second connecting metal 12 undergo plastic deformation, causing the diagonal member 5 and the third connecting metal 12 to separate. When the second connecting metal fitting 12 separates from the first connecting metal fitting 11 and the metal fitting connecting pin 13, etc., the diagonal member 5 is prone to cracking between the metal fitting connecting pin 13 and the wood fixing pin 14 in the diagonal member 5, as shown in Figure 11, etc., which will be described later.In order to make cracking less likely to occur, compressive force is applied from the outside to the area where cracking is likely to occur, in the direction of a straight line CL extended in the longitudinal direction of the diagonal member 5 from the center of each of the crack prevention pin through holes 12c, 12c.

[0027] The pair of anti-splitting pin holes 12c, 12c are provided on both the left and right sides of a straight line CL extending from the center of the metal connecting pin hole 12b in the longitudinal direction of the diagonal member 5, and the distance L1 is 1.5 times or more the diameter R1 of the metal connecting pin 13 or the inner diameter r3 of the metal connecting pin hole 12b. This is because the location where splitting is likely to occur in the diagonal member 5 to which the second connecting metal 12 is attached is the location where the width extending in the longitudinal direction of the diagonal member 5 from the diagonal member-side metal connecting pin hole 5b, which is continuous with the diagonal member-side metal connecting pin hole 5b through which the metal connecting pin 13 passes, is 1.5 times or more the diameter R1 of the metal connecting pin 13 or the inner diameter r3 of the metal connecting pin hole 12b, as shown in Figure 9. The area where cracks are likely to occur is the area α of inner diameter r3 (the area where the dashed diagonal lines descending left and right in Figure 9 overlap), but the experimental results showed that cracks also occurred outside of area α, and when considering safety taking into account the experimental results and changes in the grain direction and misalignment between the grain direction and the longitudinal direction, it is considered sufficient to consider the area β (the area where the dashed diagonal lines descending left and right in Figure 9 overlap) to be the area where cracks are likely to occur, with a width of 3 x R1 (or 3 x r3), which is three times the diameter R1 (see Figure 2) of the metal fitting connecting pin 13 or the inner diameter r3 (see Figure 8) of the metal fitting connecting pin through hole 12b, that is, 1.5 x R1 (or 1.5 x r3) away from the center of the diagonal side metal fitting connecting pin through hole 5b.

[0028] Furthermore, the reason why the pair of anti-splitting pin holes 12c, 12c in the second connecting hardware 12 are located more inward than the outermost wood fixing pin holes 12a1, 12a9 among the multiple wood fixing pin holes 12a1 to 12a9 is that, as shown in Figures 1 and 2, the first connecting hardware 11 is located at the corner where the beam 3 or base 2 and the column 4 are joined, and the second connecting hardware 12, which is connected to the first connecting hardware 11 via a metal-to-metal connecting pin 13, is located at the end of the diagonal material 5, and the end of the diagonal material 5 is cut into a triangle so that it can join to the corner without any gaps, and the second connecting hardware 12 located at the end of the diagonal material 5 is also formed in a shape such that the width on the side where the metal-to-metal connecting pin hole 12b is located is narrower than the width on the side where the wood fixing pin hole 12a1 to 12a9 is located, as shown in Figures 7 and 8(b).

[0029] In addition, when the metal fitting connecting pin 13 passed through the metal fitting connecting pin through hole 12b and the wood fixing pin 14 passed through the wood fixing pin through holes 12a1 to 12a9 are pulled, and a tensile force acts on the second connecting metal fitting 12 in the direction of arrows B and B', which are the up and down directions in FIG. 10, as shown in FIG. 10, the tensile force acts on the second connecting metal fitting 12 as an internal stress between the metal fitting connecting pin through hole 12b and the wood fixing pin through holes 12a1 to 12a9, and the tensile force acts on the second connecting metal fitting 12 in the left and right directions in FIG. 10, and the tensile force acts on the second connecting metal fitting 12 in the direction of arrows B and B', which are the up and down directions in FIG. A compressive force acts in the direction of arrows C and C' toward a straight line CL extended in the longitudinal direction of the material 5, and this compressive force becomes stronger the closer it is to the straight line TL1, TL9 connecting the metal fitting connecting pin through hole 12b and the outermost wood fixing pin through holes 12a1, 12a9.Therefore, anti-splitting pin through holes 12c, 12c are provided at points close to the straight lines TL1, TL9, and the force of the anti-splitting pins 15 inserted into each of the anti-splitting pin through holes 12c, 12c toward the directions of arrows C and C' is used as an external force to prevent the diagonal material 5 from splitting. Here, the anti-splitting pin holes 12c, 12c are provided outside the straight lines TL1, TL9 connecting the metal fitting connecting pin hole 12b and the outermost wood fixing pin hole 12a1, 12a9, but they may be provided inside the straight lines TL1, TL9 (but outside the region β) as long as they are inside the outermost wood fixing pin hole 12a1, 12a9, or on the straight lines TL1, TL9.

[0030] In addition, the longitudinal distance L2 of the diagonal member 5 between the anti-splitting pin holes 12c, 12c and the upper wood fixing pin holes 12a1, 12a3, 12a5, 12a7, 12a9 in the second connecting hardware 12 is set to at least five times the diameter R2 of the wood fixing pin 12, so that the relationship L2≧5×R2 is satisfied.

[0031] This is because when the distance L2 between the anti-splitting pin through holes 12c, 12c and the upper wood fixing pin through holes 12a1, 12a3, 12a5, 12a7, 12a9 in the second connecting hardware 12 is small, the anti-splitting pin 15 inserted into the anti-splitting pin through holes 12c, 12c will have the same wood fixing function as the wood fixing pin 14 passed through the wood fixing pin through holes 12a1 to 12a9 rather than a splitting prevention function.

[0032] However, the distance L3 in the longitudinal direction of the diagonal member 5 between the metal-to-metal connecting pin through-hole 12b and the splitting prevention pin through-holes 12c, 12c in the second connecting metal 12 is equal to or greater than the distance L2 in the longitudinal direction of the diagonal member 5 between the wood fixing pin through-holes 12a1 to 12a9 and the splitting prevention pin through-holes 12c, 12c, i.e., L3 ≥ L2. In the experiments, tests were conducted with L3 set to about 1.0 to 1.4 times L2, and the splitting prevention effect of the diagonal member 5 was confirmed.

[0033] In this embodiment, as will be described later, the anti-splitting pin 15 uses a drift pin with the same diameter R2 as the wood fixing pin 14, so the inner diameter r5 of the anti-splitting pin through holes 12c, 12c (see Figure 8) is the same as the inner diameter r4 of the wood fixing pin through holes 12a1 to 12a9 and the inner diameter r2 of the wood fixing pin through holes 11a, 11b of the first connecting hardware 11 (see Figure 6).

[0034] (Metallic joint pin 13) 2, the metal fitting connecting pin 13 is a drift pin with a diameter R1 of, for example, 30 mm or more, which is larger than the diameter R2 of the wood fixing pin 14 and the diameter R3 of the splitting prevention pin 15. However, it is of course also possible to use a drift pin with the same diameter as the diameter R2 of the wood fixing pin 14 and the diameter R3 of the splitting prevention pin 15.

[0035] (Wood fixing pin 14) The wood fixing pin 14 is a drift pin with a diameter of just over 10 mm and a diameter R2 (see Figure 2) that is smaller than the diameter of the metal fitting connecting pin 13.In this embodiment, a drift pin with a diameter R3 that is the same as the splitting prevention pin 15 is used, but of course it is also possible to use a pin with a diameter R3 different from that of the splitting prevention pin 15.

[0036] (Split prevention pin 15) The anti-splitting pin 15 is a pin that prevents the diagonal member 5 from splitting by passing it through each of the anti-splitting pin holes 12c, 12c provided between the metal-to-metal connecting pin hole 12b of the second connecting metal member 12 and the wood fixing pin hole 12a1 to 12a9.As shown in Figure 9, it is a component that has the function of preventing the diagonal member 5 from splitting mainly on the side of the diagonal member side wood fixing pin hole 5a1 to 5a9, which is below the diagonal member side metal connecting pin hole 5b.

[0037] The anti-splitting pin 15 is a drift pin with a diameter R3 of just over 10 mm, which is smaller than the diameter R1 of the metal fitting connecting pin 13.In this embodiment, a drift pin with the same diameter R2 as the wood fixing pin 14 is used, but of course it is also possible to use a drift pin with a diameter R2 different from that of the wood fixing pin 14.

[0038] (Split prevention screw 16) As shown in Figure 2 etc., the split prevention screw 16 is a screw member that is screwed into the diagonal member 5 on the corner side between the beam 3 and the column 4, above the metal fitting connecting pin 13, with its threads, and is different from the two split prevention pins 15 that mainly function to prevent splitting of the diagonal member 5 on the side of the diagonal member side wood fixing pin through holes 5a1-5a9, below the diagonal member side metal fitting connecting pin through holes 5b in the diagonal member 5, and is a screw member that mainly prevents splitting of the diagonal member 5 on the above the diagonal member side metal fitting connecting pin through holes 5b (see Figure 9) in the diagonal member 5. It should be noted that the split prevention screw 16 may be omitted in the present invention.

[0039] (Beam material 3) 1 and 2, the beam 3 is a piece of wood to which the horizontal portions of a pair of first connecting metal fittings 11, 11 that make up the wood connecting metal fitting 1 of this embodiment are fixed, and slits or the like are formed in the beam 3 for embedding beam support metal fittings 17 that secure the pair of first connecting metal fittings 11, 11 to the beam 3. The beam support metal fittings 17 are secured to the beam 3 by passing multiple (here, for example, three) bolts 19a through the back plate of the beam support metal fittings 17 and fastening them with nuts 19b. The beam support metal fittings 17 and the pair of first connecting metal fittings 11, 11 are secured to each other by two wood fixing pins 14 that are passed through the beam 3 in a direction perpendicular to the bolts 19a and pass through two wood fixing pin holes 11a (see FIG. 5) on both sides of the beam support metal fittings 17 and on each of the pair of first connecting metal fittings 11, 11.

[0040] (Pillar material 4) 1 and 2, the pillar 4 is a piece of wood to which the vertical portions of a pair of first connecting metal fittings 11, 11 that make up the wood connecting hardware 1 of this embodiment are fixed, and slits and the like are formed for embedding beam support metal fittings 18 that secure the pair of first connecting metal fittings 11, 11 to the pillar 4. The beam support metal fittings 18 are secured to the pillar 4 by passing multiple (here, for example, four) bolts 19a through the back plate of the beam support metal fittings 18 and fastening them with nuts 19b (see FIG. 2). The beam support metal fittings 18 and the pair of first connecting metal fittings 11, 11 are secured to each other by four wood fixing pins 14 that are passed through the pillar 4 in a direction perpendicular to the bolts 19a and that pass through four wood fixing pin holes 11b (see FIG. 5) on both sides of the beam support metal fittings 18 and on each of the pair of first connecting metal fittings 11, 11.

[0041] (Diagonal member 5) As shown in Figures 1 and 2, the diagonal member 5 is a piece of wood to which a pair of second connecting metal fittings 12, 12 that constitute the wood connecting hardware 1 of the embodiment are fixed. Unlike the first connecting metal fittings 11, 11, the pair of second connecting metal fittings 12, 12 are directly inserted into slits provided in the diagonal member 5 without using beam support metal fittings 17, 18, and fixed with nine wood fixing pins 14. In addition to the nine wood fixing pins 14, a metal fitting connecting pin 13 and a pair of anti-splitting pins 15, 15 are also passed through.

[0042] For this reason, the diagonal member 5 is provided with diagonal member-side wood fixing pin through-holes 5a1 to 5a9 through which nine wood fixing pins 14 are respectively passed, as shown in Figure 9, as well as a diagonal member-side metal connecting pin through-hole 5b through which the metal connecting pin 13 is passed, and diagonal member-side splitting prevention pin through-holes 5c, 5c through which the pair of splitting prevention pins 15, 15 are also passed. Note that Figure 9 shows the state in which the second connecting metal 12 has been inserted into a slit (not shown) provided in the diagonal member 5, before the metal connecting pin 13, wood fixing pin 14, and splitting prevention pin 15 have been passed through.

[0043] <Function of the wooden connector 1 according to the embodiment> Next, the operation of the wooden connector 1 of the embodiment configured as above will be explained in comparison with the operation of a comparative example in which the split prevention pin insertion holes 12c, 12c are omitted.

[0044] (In the case of a comparative example in which the split prevention pin through holes 12c, 12c are omitted) Figure 11 is an explanatory diagram showing a state in which an external force acts to cause a crack in the diagonal member 5 when a comparative example is used in which there is no anti-splitting pin at the joint between the corner of the beam member 3 and the column member 4 and the diagonal member 5, i.e., a comparative example in which the anti-splitting pin through holes 12c, 12c are omitted.

[0045] In the comparative example in which the splitting prevention pin 15 is omitted, as shown in Figure 11, when a large external force acts on the corner of the beam 3 and the column 4 such that it moves away from the beam in the direction of the arrow D diagonally up to the right in Figure 11, the first connecting hardware 11 fixed to the beam 3 and the column 4 is also pulled in the direction of the arrow D diagonally up to the right in Figure 11. Then, the second connecting hardware 12 connected to the first connecting hardware 11 via the metal-to-metal connecting pin 13 is also pulled in the direction of the arrow D diagonally up to the right in Figure 11, and a tensile force acts on the diagonal material 5 to which the second connecting hardware 12 is fixed.

[0046] Here, the second connecting hardware 12 is fixed to the diagonal member 5 with nine wood fixing pins 14, while it is connected to the first connecting hardware 11 with one metal connecting pin 13. Since the fixing force of the nine wood fixing pins 14 is greater than the connecting force of the single metal connecting pin 13, if the tensile force of the diagonal member 5 is excessive, the periphery of the metal connecting pin through hole 11c of the first connecting hardware 11, through which the metal connecting pin 13 passes, and the periphery of the metal connecting pin through hole 12b of the second connecting hardware 12 will undergo plastic deformation, and the diagonal member 5 and the second connecting hardware 12 will tend to move away from the first connecting hardware 11 and the metal connecting pin 13.

[0047] As a result, as shown in Figure 11, the diagonal member 5's metal connecting pin hole 5b, through which the metal connecting pin 13 passes, widens, causing cracks to occur on the upper side of the diagonal member side metal connecting pin hole 5b, on the beam 3 side and the column 4 side, and the end 5d of the diagonal member 5 separates from the diagonal member 5.At the same time, a cracking force acts in the directions of arrows E and E', which are perpendicular to the longitudinal direction of the diagonal member 5, on the lower side of the diagonal member side metal connecting pin hole 5b, on the diagonal member side wood fixing pin hole 5a1 to 5a9 side, causing a crack 5e.

[0048] In this case, the crack 5e on the side of the diagonal member side wood fixing pin through holes 5a1 to 5a9, which is the lower side of the diagonal member side metal connecting pin through hole 5b, is likely to occur in the region β (see Figure 9) where cracking is likely to occur, among the diagonal member side metal connecting pin through hole 5b of the diagonal member 5 into which the metal connecting pin 13 is inserted, and the diagonal member side wood fixing pin through holes 5a1 to 5a9 into which nine wood fixing pins 14 are passed.In Figure 11, the crack 5e has occurred in the fiber direction, which is the longitudinal direction of the diagonal member 5, from the diagonal member side metal connecting pin through hole 5b toward the diagonal member side wood fixing pin through hole 5a4 in region β.

[0049] This is because in the diagonal member 5 to which the second connecting hardware 12 of the wood connecting hardware 1 of this embodiment is attached, splitting occurs mainly from the periphery of the connecting pin through hole 5b on the diagonal member side through which the connecting pin 13 passes, along the grain of the diagonal member 5. Therefore, the width extending from the periphery of the connecting pin through hole 5b on the diagonal member side in the longitudinal direction of the diagonal member 5 is the area α of the diameter R1 of the connecting pin 13. However, in the results of the experiment, splitting also occurred outside of the area α, and this is due to the results of the experiment and the change in the grain direction and the wood. When safety is considered, taking into account misalignment in the grain direction and the longitudinal direction, cracking is likely to occur in the area β located behind the diagonal member-side metal connecting pin through-hole 5b, and that area is 3 × R1 (or 3 × r3), which is three times the diameter R1 of the metal connecting pin 13 or the inner diameter r3 of the metal connecting pin through-hole 12b. In other words, the area β is 1.5 × R1 (or 1.5 × r3) away from the line CL (see Figure 9) passing through the center of the diagonal member-side metal connecting pin through-hole 5b. In the case of Figure 9, the diagonal member-side wood fixing pin through-holes 5a3, 5a4, 5a5, 5a6, and 5a7 are located in this area β, and cracking 5e has occurred between the diagonal member-side metal connecting pin through-hole 5b and the diagonal member-side wood fixing pin through-hole 5a4.

[0050] Therefore, if the diagonal member side wood fixing pin holes 5a1-5a9 do not exist in area β, cracks connecting the diagonal member side metal fittings to the connecting pin holes 5b are unlikely to occur. However, in order to ensure the fixing (jointing) strength between the second connecting metal fitting 12 and the other wood, the diagonal member 5, it is necessary to ensure a certain number of diagonal member side wood fixing pin holes 5a1-5a9. It is practically difficult to provide all diagonal member side wood fixing pin holes 5a1-5a9 avoiding area β, and it is necessary to provide them within area β, like the diagonal member side wood fixing pin holes 5a3-5a7.

[0051] (In the case of this embodiment having split prevention pin through holes 12c, 12c) Figure 12 is an explanatory diagram showing a state in which an external force acts to cause a crack in the diagonal member 5 when an embodiment of the wooden connecting hardware 1 is used to join the corner of a beam member 3 and a column member 4 to the diagonal member 5.

[0052] As shown in Figure 12, when an embodiment of the timber connecting hardware 1 is used at the joint between the corner of the beam 3 and the column 4 and the diagonal member 5, if a large external force is applied that causes the corner of the beam 3 and the column 4 to move away from the beam in the direction of the arrow D diagonally upward to the right in the figure, the diagonal member 5 and the second connecting hardware 12 will move away from the first connecting hardware 11 and the metal-to-metal connecting pin 13, and the diagonal member-side metal connecting pin through hole 5b through which the metal-to-metal connecting pin 13 passes will widen, causing a split on the beam 3 side and the column 4 side, which are above the diagonal member-side metal connecting pin through hole 5b, as in the case of Figure 11, and a splitting force will act in the direction of the arrows E and E', which are perpendicular to the longitudinal direction of the diagonal member 5, on the diagonal member-side wood fixing pin through holes 5a1 to 5a9, which are below the diagonal member-side metal connecting pin through hole 5b.

[0053] However, in the wood connecting hardware 1 of this embodiment, as shown in FIG. 9 and the like, between the nine wood fixing pin holes 12a1 to 12a9 in the second connecting hardware 12 provided in the diagonal member 5 and the metal connecting pin hole 12b, two split prevention pins 15 are provided outside the region β where splitting is likely to occur, the region β having a width of 3×R1 (or 3×r3) and a length L1 that is 1.5 times or more the inner diameter r3 of the metal connecting pin hole 12b in both directions on the left and right sides of the straight line CL that extends from the center of the metal connecting pin hole 12b in the longitudinal direction of the diagonal member 5. A pair of anti-splitting pin holes 12c, 12c are provided for passing through each of the diagonal members 5, and when the second connecting hardware 12 is pulled in the direction of arrow D, which is the longitudinal direction of the diagonal member 5, a pulling force is generated between the anti-splitting pin holes 5c, 5c on the diagonal member side (see Figure 9) in the direction of the connecting pin hole 5b between the diagonal member side hardware, as described above, and this force is decomposed to cause a compressive force to act in the direction of arrows F, F', perpendicular to the longitudinal direction of the diagonal member 5, from the center of each of the anti-splitting pin holes 12c, 12c, as shown in Figure 12.

[0054] Therefore, in the wood connecting hardware 1 of this embodiment, a compressive force acts in the direction of arrows F, F' toward the straight line CL extending from the center of each of the anti-splitting pin through holes 12c, 12c to the straight line CL extending in the longitudinal direction of the diagonal member 5 on the two anti-splitting pins 15, 15 passed through each of the anti-splitting pin through holes 12c, 12c, and the two anti-splitting pins 15, 15 in the diagonal member 5 also press against the area β prone to cracking from the outside through the diagonal member side anti-splitting pin through holes 5c, 5c (see Figure 9), thereby reducing the occurrence of cracking in the diagonal member 5.

[0055] 12 does not show the anti-splitting screw 16, but as shown in FIG. 2 and other figures, the anti-splitting screw 16 is passed through the diagonal member 5 at the corner between the beam 3 and the column 4, above the diagonal member-side metal connecting pin through-hole 5b, and the anti-splitting screw 16 prevents the end 5d of the diagonal member 5 from splitting. In other words, in this embodiment, the anti-splitting screw 16 mainly prevents the diagonal member 5 from splitting at the corner between the beam 3 and the column 4, above the diagonal member-side metal connecting pin through-hole 5b, while the two anti-splitting pins 15 mainly prevent the diagonal member 5 from splitting at the diagonal member-side wood fixing pin through-holes 5a1 to 5a9, below the diagonal member-side metal connecting pin through-hole 5b.

[0056] <Summary of the wooden connector 1 according to the embodiment of the present invention> In the wood connecting hardware 1 of the embodiment of the present invention, between the wood fixing pin holes 12a1 to 12a9 in the second connecting hardware 12 and the metal connecting pin hole 12b, anti-splitting pin holes 12c, 12c are provided on both the left and right sides of a straight line CL extending from the center of the metal connecting pin hole 12b in the longitudinal direction of the diagonal member 5, at a position a length L1 away from the straight line CL that is 1.5 times or more the diameter R1 of the metal connecting pin 13 or the inner diameter r3 of the metal connecting pin hole 12b.

[0057] As a result, in the embodiment of the wooden connecting hardware 1 according to the present invention, it is possible to prevent cracks from occurring in the diagonal member 5 without the need to screw in the anti-splitting screws or reinforcing shafts used in the conventional Patent Documents 1 and 2, and the work time can be shortened by the amount that the screwing work is no longer necessary.

[0058] In particular, in the wood connecting hardware 1 of the embodiment of the present invention, when a tensile force acts on the second connecting hardware 12 due to the diagonal member 5 being pulled, a compressive force acts from the center of each of the anti-splitting pin through holes 12c, 12c between the wood fixing pin through holes 12a1 to 12a9 in the second connecting hardware 12 and the inter-metal connecting pin through hole 12b, in the direction of the straight line CL extending in the longitudinal direction of the diagonal member 5, causing the anti-splitting pins 15, 15 inserted into each of the anti-splitting pin through holes 12c, 12c to move closer to each other, thereby clamping and pressing the area β (see Figure 9) in the diagonal member 5 where cracking is likely to occur from the outside to prevent cracking, thereby minimizing the occurrence of cracking in the area β where cracking is likely to occur.

[0059] This allows the linear connectors, consisting of a small number of wood fixing pins 14 and anti-splitting pins 15, to efficiently bear the anticipated load. Furthermore, when a tensile force acts on the wood connecting hardware 1 due to the diagonal member 5 being pulled, the initial tensile force is first borne by the metal-to-metal connecting pins 13, and then by the wood fixing pins 14. Therefore, even when a strong tensile force is applied to the diagonal member 5, damage to the diagonal member 5 can be delayed, and the tensile force can be borne efficiently and gradually, thereby improving the strength of the wooden building itself.

[0060] Furthermore, compared to linear fasteners such as nails and wood screws, which generally have a small diameter, the use of linear fasteners such as wood fixing pins 14 and anti-splitting pins 15, which have a large diameter, increases the load that each fastener can withstand. With the former, more than a dozen pins may be required depending on the expected load, but with the latter, the expected load can be borne with just a few pins, making it possible to reduce the number of linear fasteners, which also reduces work time.

[0061] In particular, the anti-splitting screws or reinforcing shafts of the conventional Patent Documents 1 and 2 must be screwed in a direction perpendicular to linear fasteners such as nails and wood screws, and parallel to the wall surface formed by cross members such as beams 3 or foundations 2, columns 4, and diagonal members 5, in other words, in multiple directions within the plane of the wall surface, just like the anti-splitting screw device 16 of this embodiment. Therefore, the installation direction is different from that of linear fasteners, and if the installation procedure is incorrect, it may not be possible to install them later.

[0062] In contrast, in the embodiment of the timber connecting hardware 1 according to the present invention, in order to prevent the diagonal member 5 from cracking, instead of screwing it into the in-plane direction of the wall surface formed by the cross members such as the beams 3 and base 2, the columns 4, and the diagonal members 5, two crack prevention pins 15, 15 are inserted in the out-of-plane direction of the wall surface perpendicular to the wall surface formed by the cross members such as the beams 3 and base 2, the columns 4, and the diagonal members 5, thereby preventing the diagonal member 5 from cracking.In addition, construction can be carried out without any problems even if the construction procedure, such as the order in which the crack prevention pins 15, 15 are inserted, is incorrect.This therefore facilitates on-site work after the diagonal member 5 is joined, reducing the burden of on-site work and improving construction efficiency.

[0063] In particular, in the wood connecting hardware 1 of the embodiment of the present invention, unlike the conventional technologies of Patent Documents 1 and 2 mentioned above, the metal-to-metal connecting pins 13, wood fixing pins 14, and anti-splitting pins 15 are all installed in the same direction, which simplifies the installation procedure and improves workability, thereby reducing work time.

[0064] In addition, in an embodiment of the present invention, the anti-splitting pin through-holes 12c, 12c are located on both the left and right sides of a straight line CL extending from the center of the metal fitting connecting pin through-hole 12b in the longitudinal direction of the diagonal member 5, at a distance L1 from the straight line CL that is 1.5 times or more the diameter R1 of the metal fitting connecting pin 13 or the inner diameter r3 of the metal fitting connecting pin through-hole 12b, and are located more inward than the outermost wood fixing pin through-holes 12a1, 12a9 of the multiple wood fixing pin through-holes 12a1 to 12a9.

[0065] Therefore, even if the end of the diagonal member 5 is cut into a triangle according to the corner where the beam 3 or base 2 and column 4 are joined so that it can be joined without gaps, and the shape of the second connecting metal fitting 12 attached to the end of the diagonal member 5 is also formed according to the shape of the end of the diagonal member 5 so that the width on the side where the metal fitting connecting pin through holes 12b are provided is narrower than the width on the side where the wood fixing pin through holes 12a1 to 12a9 are provided, it is possible to reliably install anti-splitting pins 15, 15 which have the function of preventing the diagonal member 5 from splitting.

[0066] Furthermore, in the embodiment of the present invention, not only the split prevention pins 15, 15 of the timber connector 1 but also the split prevention screw 16, as in the conventional Patent Documents 1 and 2, is used, which further prevents splitting in the diagonal member 5. In particular, the split prevention pins 15, 15 of the timber connector 1 of this embodiment function to prevent splitting of the diagonal member 5 mainly on the side of the diagonal member-side wood fixing pin through-holes 5a1-5a9, which are below the diagonal member-side metal connecting pin through-holes 5b (see FIG. 9) in the diagonal member 5, whereas the split prevention screw 16 functions to prevent splitting of the diagonal member 5 mainly on the side of the diagonal member-side metal connecting pin through-holes 5b (see FIG. 9) in the diagonal member 5, thereby efficiently preventing splitting of the diagonal member 5.

[0067] In addition, in the embodiment of the wood connecting hardware 1 according to the present invention, the distance L2 between the upper wood fixing pin holes 12a1, 12a3, ..., 12a9 in the second connecting hardware 12 and the anti-splitting pin holes 12c, 12c is set to be at least five times the diameter R2 of the wood fixing pin 14, which is a linear fastener.

[0068] Therefore, when the interval L2 between the split prevention pin through-holes 12c, 12c in the second connecting hardware 12 and the upper wood fixing pin through-holes 12a1, 12a3, . . . , 12a9 is small and the split prevention pin through-holes 12c, 12c approach the positions of the upper wood fixing pin through-holes 12a1, 12a3, . . . , 12a9, the split prevention pin 15 inserted into the split prevention pin through-holes 12c, 12c approaches the function of the wood fixing pin 14 passed through the wood fixing pin through-holes 12a1 to 12a9, and the split prevention function is reduced. The distance L2 between 12c and the upper wood fixing pin holes 12a1, 12a3, ..., 12a9 can be sufficiently secured by making the distance L2 between them at least five times the diameter R2 of the wood fixing pin 14.Therefore, according to experimental results, the two anti-splitting pins 15, 15 inserted into the anti-splitting pin holes 12c, 12c can efficiently generate a compressive force directed toward the straight line CL on the diagonal member 5 from outside the area β where cracking is likely to occur in the diagonal member 5, thereby reliably reducing the occurrence of cracking in the area β where cracking is likely to occur.

[0069] In addition, in the wood connecting hardware 1 of the embodiment of the present invention, the longitudinal distance L3 of the diagonal member 5 between the metal-to-metal connecting pin passage hole 12b and the anti-splitting pin passage holes 12c, 12c in the second connecting hardware 12 is greater than or equal to the longitudinal distance L2 of the diagonal member 5 between the wood fixing pin passage holes 12a1 to 12a9 and the anti-splitting pin passage holes 12c, 12c, and L3 is 1.0 to 1.4 times L2.

[0070] Therefore, the anti-splitting pin holes 12c, 12c are located closer to the upper wood fixing pin holes 12a1, 12a3, ···, 12a9 than the midpoint between the metal-to-metal connecting pin hole 12b and the upper wood fixing pin holes 12a1, 12a3, ···, 12a9 in the second connecting metal 12.Therefore, experimental results have shown that the two anti-splitting pins 15, 15 inserted into the anti-splitting pin holes 12c, 12c can efficiently generate a compressive force towards the straight line CL on the diagonal member 5 from outside the area β where cracking is likely to occur in the diagonal member 5, thereby reliably reducing the occurrence of cracking in the area β where cracking is likely to occur.

[0071] In the above embodiment, the first connecting hardware 11 is described as having two wood fixing pin holes 11a and four wood fixing pin holes 11b, while the second connecting hardware 12 is described as having nine wood fixing pin holes 12a1 to 12a9. However, in the present invention, this is merely an example, and the first connecting hardware 11 and the second connecting hardware 12 may of course be provided with any appropriate number of wood fixing pin holes.

[0072] Furthermore, in the description of the above embodiment, wood fixing pins 14 were used as an example of linear fasteners for fixing the first connecting hardware 11 and the second connecting hardware 12 to wood, but the present invention is not limited to this, and it is of course also possible to use linear fasteners other than pins, such as nails, wood screws, metal screws or bolts.

[0073] Furthermore, in the above embodiment, as shown in Figures 3 and 4, two first connecting hardware 11 and two second connecting hardware 12 are provided and connected by connecting pins 13, but the present invention is not limited to this, and three first connecting hardware 11 and three second connecting hardware 12 may be provided and connected by connecting pins 13, or one first connecting hardware 11 and one second connecting hardware 12 may be provided and connected by connecting pins 13.The number of first connecting hardware 11 and second connecting hardware 12 connected by connecting pins 13 is not limited, and the number of first connecting hardware 11 and the number of second connecting hardware 12 may of course not be the same but different.

[0074] Furthermore, by increasing the number of first connecting metal pieces 11 and second connecting metal pieces 12, the number of fulcrums supporting the linear fasteners, such as the wood fixing pins 14 and split prevention pins 15, increases, making it possible to further improve the strength of the joints. In this case, the same effect can be expected by increasing the thickness of the first connecting metal pieces 11 and second connecting metal pieces 12 rather than increasing the number of pieces.

[0075] Furthermore, in the embodiment of the wood connecting hardware 1 according to the present invention, the diameter R1 of the connecting pin 13 between the hardware pieces is larger than that of the anti-splitting pin 15 and the wood fixing pin 14 so that it can better bear the initial rigidity, but the present invention is not limited to this, and it is of course also possible to use pins with the same diameter as or smaller than the anti-splitting pin 15 and the wood fixing pin 14.

[0076] Furthermore, in the embodiment of the timber connecting hardware 1 according to the present invention, a so-called bracing structure consisting of a pillar material 4, a base 2, a beam material 3 and a diagonal material 5 has been described as an example, but the present invention is not limited to this and may of course also be used for other diagonal materials such as trusses. [Explanation of symbols]

[0077] 1. Timber connecting hardware 11 First connecting hardware 11a, 11b Wood fixing pin holes 11c Metal fitting connecting pin hole 12 Second connecting hardware 12a1~12a9 Wood fixing pin holes (linear fastener holes) 12b Metal fitting connecting pin through hole 12c,12c Split prevention pin hole 13 Metal fittings connecting pin 14 Wood fixing pins (linear fasteners) 15 Anti-splitting pin 16. Anti-splitting screws 17,18 Beam support hardware 19a Bolt 19b Nut 2. Foundation 3 Beam material 4 Pillar material 5 Diagonals 5a1~5a9 Diagonal wood fixing pin holes 5b Diagonal side metal fittings connecting pin through hole 5c,5c Diagonal member side split prevention pin hole

Claims

1. In a wood connecting hardware, a first connecting hardware is fixed to one piece of wood with a plurality of linear fasteners, and a second connecting hardware is fixed to the other piece of wood with a plurality of linear fasteners, and the two pieces are connected by a connecting pin. This wood connecting hardware is characterized in that between the multiple linear fastener passage positions in the second connecting hardware through which the multiple linear fasteners are respectively passed and the metal connecting pin passage holes through which the metal connecting pins are passed, anti-splitting pin passage holes are provided on both sides of a straight line extending from the center of the metal connecting pin passage hole in the longitudinal direction of the other wood, at a distance of 1.5 times or more the diameter of the metal connecting pin or the inner diameter of the metal connecting pin passage hole from the straight line extending from the center of the metal connecting pin passage hole in the longitudinal direction of the other wood.

2. The wooden connector according to claim 1, A wood connecting hardware characterized in that the split prevention pin insertion hole is located inside the outermost linear fastener insertion position among the plurality of linear fastener insertion positions.

3. The wooden connector according to claim 1 or 2, A wood connecting hardware characterized in that the distance between the linear fastener insertion position and the anti-splitting pin insertion hole in the second connecting hardware is more than five times the diameter of the linear fastener.

4. A wooden building using the wooden connecting hardware according to any one of claims 1 to 3, A wooden connecting hardware characterized in that the longitudinal distance of the other wooden piece between the metal-to-metal connecting pin hole and the anti-splitting pin hole in the second connecting hardware is equal to or greater than the longitudinal distance of the other wooden piece between the linear fastener insertion position and the anti-splitting pin hole.

5. A wooden building using the wooden connecting hardware according to any one of claims 1 to 4, The one piece of wood is a cross member and a pillar member, and the first connecting metal is fixed to the joint between the cross member and the pillar member, The other wood is a diagonal member connected to the joint between the cross member and the column member, and the second connecting metal is fixed to the end of the diagonal member with the linear fastener, while the split prevention pin is passed through the split prevention pin through hole of the diagonal member and the second connecting metal, A wooden building characterized in that the first connecting hardware and the second connecting hardware are connected by a connecting pin between the hardware.

Images