JP2006219974A - Joint for wooden building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint for a wooden building by which the strength of a joint part of a plurality of square timbers for construction is improved. <P>SOLUTION: The joint for the wooden building is to join the plurality of square timbers for construction to one another to form a framework of the wooden building. The joint is arranged at a joint part where a perimeter sill 11, a partition sill 12 and a column 13 are joined to one another. The joint 6A encloses the joint part to fix the perimeter sill 11, the partition sill 12 and the column 13 to one another. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a joint for wooden buildings, and in particular, for wooden buildings for joining together building squares when assembling a frame of a wooden building using building squares such as columns, beams, and foundations. It relates to joints.

  A wooden building has, for example, joints between a number of building squares such as joints between pillars and beams and joints between pillars and foundations. It has been found by the present inventors' research and investigation that collapse of a wooden building due to a large earthquake is caused by breakage of a joint portion between the building squares in most cases. Therefore, in order to prevent the collapse of wooden buildings from large-scale earthquakes such as the Hanshin-Awaji Great Earthquake and the Niigata Chuetsu Earthquake that have been sporadic in recent years, it is desired to increase the strength of the joints between building squares.

  Conventionally, for example, a joint portion between a column and a side base and a joint portion between a partition base and a side base are joined by a so-called tenon joint for wooden construction. More specifically, as shown in FIG. 6, projecting tenons 103 and 104 are provided at the joint portions of the pillar 100 and the partition base 101 with the side base 102, while the side base 102 has A hole 105 for receiving the tenons 103 and 104 is formed at a joint portion between the column 100 and the partition base 101. By inserting the tenon 103 and 104 into the hole 105, the pillar 100, the partition base 101, and the side base 102 were joined to each other (for example, Non-Patent Document 1).

Further, in Non-Patent Document 1, as shown in FIG. 7, one end of a steel bar (bristle) 106 whose both ends are bent at a right angle is driven into the column 100 and the other end is driven into the side base 102. A technique for further reinforcing the joint portion with the base 102 is also disclosed.
Jikkyo Publishing Co., Ltd. 33-36 pages of architectural structure (issued February 25, 1974)

  However, in the wooden building joint in which the tenon 103/104 is inserted into the hole 105, the joint is made of wood, and at the joint portion, a hole is formed in the building square or the building square is shaved. Since a tenon is formed, the strength of the building square is reduced at that portion.

  Therefore, when a large earthquake occurs, when a large load is applied to the joint portion of the pillar 100, the partition base 101, and the side base 102, the pillar 100, the partition base 101, and the side base 102 break at the joint portion. There was a problem that. In addition, even when reinforced by the shaving 106, a wooden building joint in which the tenon 103 or 104 is inserted into the hole 105 cannot be said to be sufficient to withstand a large earthquake.

  This invention is made | formed in view of the said problem, The objective is to provide the coupling | joint for wooden buildings which raised the intensity | strength of the junction part of a building square.

  In order to solve the above-mentioned problems, the joint for wooden building of the present invention is a joint for connecting a plurality of building squares forming a frame of a wooden building to each other. It is characterized in that it is formed of a surrounding metal fitting that is disposed in a portion and surrounds the joining portion to fix the building square members.

  According to the above configuration, since the enclosure bracket is disposed so as to surround the joint portion between the building square members, the position of each building square member is fixed by the enclosure bracket, and at the same time, the joint portion of the building square member is joined. The state is also fixed by an enclosure.

  Moreover, since the circumference | surroundings of the junction part of building squares are enclosed by the surrounding metal fittings, even if it applies a load from which direction, the surrounding metal fittings can bear the load.

  For this reason, unless the enclosure metal is damaged, the joint portion between the building squares surrounded by the enclosure metal is not damaged. Furthermore, since the enclosure metal is made of metal, it has a higher strength than wooden construction squares. Further, since a tenon is not provided as in the prior art, it is possible to avoid a reduction in the strength of the building square due to the tenon processing. Therefore, it is possible to provide a wooden building joint in which the strength of the joint portion of the building square is increased.

  Moreover, in the wooden building joint of the present invention, it is preferable that the surrounding metal fitting is composed of an enclosure in at least three directions in order to join the building square members together.

  In general, in a joint portion of a plurality of building squares, building squares in three or more directions are often abutted. On the other hand, according to the above configuration, since the enclosure bracket is formed of an enclosure in at least three directions, the building square is extended in a direction in which the building square extends from a portion where each building square is joined. Square timber can be fixed. Therefore, the building square can be fixed more stably.

  Moreover, in the wooden building joint of the present invention, it is preferable that the surrounding metal fitting is formed of a plurality of divided members.

  According to the said structure, since the surrounding metal fitting is formed from the several division member, it is convenient for conveyance and can simplify a manufacturing process.

  Moreover, in the wooden building joint of the present invention, it is preferable that the dividing positions of the plurality of dividing members are parallel to the axis of the building square member.

  According to the said structure, since the division | segmentation position of a division member is parallel to the axis | shaft of the square for construction, attachment to the square for construction extended in an axial direction becomes easy.

  Moreover, in the wooden building joint of the present invention, it is preferable that the dividing positions of the plurality of dividing members deviate from the axial center line of the building square member.

  According to the said structure, the division | segmentation position of the division member has remove | deviated from the axial centerline of the square for construction. Therefore, for example, a faint or reinforcing plate can be provided on the axial center line of the building square. Therefore, it can have wide versatility.

  Moreover, in the wooden building joint of the present invention, it is preferable that the split member is formed with a flange that enables bolting.

  According to the above configuration, since the split member is provided with the bolt-fastening flange, the split members can be more firmly connected to each other. Accordingly, it is possible to further increase the bonding strength between the building squares.

  Moreover, in the joint for wooden constructions of this invention, it is preferable that the said enclosure metal has the reinforcing member which mutually reinforces the enclosure in several directions between each direction.

  According to the above configuration, the enclosure metal fittings have reinforcement members that reinforce the enclosures in a plurality of directions between each direction, so that the enclosures can be reinforced in each direction and are separated in each direction. The strength of the joint portion of the building square can be increased as compared with the case where the enclosure is provided.

  Moreover, in the wooden building joint of the present invention, the reinforcing member is preferably a triangular plate that is erected substantially vertically along the enclosure in two directions and has an opening hole.

  According to the above configuration, the reinforcing member is a triangular plate that is erected substantially vertically along the enclosure and has an opening hole. Therefore, the reinforcing square members that are joined to each other can be appropriately supported. Moreover, an opening hole can be used as a bolt hole for attaching a gravel etc., for example.

  Moreover, in the joint for wooden buildings of the present invention, the reinforcing member is a triangular plate that is erected substantially vertically along the enclosure in two directions and has an opening hole. The hypotenuse connecting the bodies may be folded.

  The reinforcing member is a triangular plate, of which two sides are erected substantially vertically along the enclosure. However, the other one side (the oblique side) is merely weak in strength because it merely connects the two-direction enclosures. On the other hand, according to the above configuration, since the hypotenuse is folded, the strength of the hypotenuse can be increased and the strength of the entire reinforcing member can be increased.

  As described above, the wooden building joint according to the present invention is formed of a surrounding metal fitting that is disposed at a joint portion where the building square members are joined to each other and surrounds the joint portion to fix the building square members together.

  Therefore, there is an effect that it is possible to provide a wooden building joint in which the strength of the joint portion of the building square is increased.

[Embodiment 1]
An embodiment of the present invention will be described below with reference to FIGS.

  As shown in FIG. 2, the framework of the wooden building of the present embodiment (hereinafter referred to as “main framework”) includes a foundation 1 made of concrete, a base 2, a pillar 3, a beam 4 and a hut beam 5. And building squares made of wood.

  In the present embodiment, the parts (hereinafter referred to as “joining parts”) A, B, C, D... Where these building squares are joined to each other include metal wooden construction joints (hereinafter “ .. Enclosures) 6A, 6B, 6C, 6D... Are arranged respectively. The joints 6A, 6B, 6C, 6D,... Surround the joint portions A, B, C, D,. The building squares listed above are merely examples, and are not limited thereto.

  The foundation 1 is located at the lowermost part of the main shaft, supports the main shaft, and prevents the bottom end of the pillar 3 and the base 2 from being corroded by moisture from the ground. Yes. The foundation 2 is placed horizontally on the foundation 1, and has a function of supporting the pillar 3 from the lower end and distributing the load from the upper part to the foundation 1. Note that the base 2 is roughly classified into a side base, a partition base, and a struck base depending on the use and function.

  While the pillar 3 is a vertical member, the beam 4 is a horizontal member, and each of them has a role of supporting this shaft assembly. The shed beam 5 has a role of transmitting the weight of a roof (not shown) to the column 3 and the beam 4.

  Next, the joint portion A (FIG. 2) and the joint 6A disposed around the joint portion A will be described. In the joint portion A, as shown in FIG. 3, the side base 11, the partition base 12, and the column 13 are joined to each other on the foundation 10.

  In this joint portion A, a side base 11 is placed on a concrete base 10, and one end of the partition base 12 is in contact with one side surface portion of the side base 11, and the side base 11 and the partition base are in contact with each other. 12 and T form. That is, the partition base 12 is abutted from the side on the side surface of the side base 11. Further, a column 13 is erected on the upper surface of the side base 11 so as to be perpendicular to the side base 11 and to form an L shape with the partition base 12. That is, the side base 11, the partition base 12, and the pillar 13 are orthogonal to each other.

  The side base 11, the partition base 12, and the pillar 13 are all quadrangular in cross section, and all have four ridge lines on the outer surface. In addition, the joining method of the side base 11, the partition base 12, and the column 13 in the joining portion A is not necessarily limited to this, and other joining methods may be used.

  The joint 6A includes a metal column arm 62 as an enclosure extending along the side base 11, the partition base 12, and the column 13, and three metal base arms 63 as an enclosure. It is made up of. By providing such column arm portions 62 and base arm portions 63, the side base 11, the partition base 12, and the columns 13 can be fixed in the direction extending from the joint portion A. Therefore, the side base 11, the partition base 12, and the pillars 13 can be stably fixed to each other. The column arm portion 62 has a cylindrical shape with a square cross section so that the column 13 can be disposed inside (the inside is hollow), whereby the side surface of the column 13 and the inside of the column arm portion 62 are separated from each other. In contact.

  The column arm portions 62 and the base arm portions 63 are made of, for example, a flat steel galvanized plate. By inserting the column 13 into the column arm 62, the column 13 is surrounded by the column arm 62.

  Further, the base arm portions 63 have a U-shaped cross section so as to surround the exposed upper surface and two side surfaces of the side base 11 and the partition base 12 placed on the foundation 10. . And the side base 11 and the partition base 12 are inserted in the U-shaped inside of this base arm part 63 .... However, the present invention is not limited to this, and the base arm portions 63 can also have, for example, a square-shaped cross section that covers all side surfaces of a building square.

  In this way, the side base 11, the partition base 12, and the pillar 13 are surrounded and fixed in three directions by the pillar arm 62 or the base arm 63, so that the load can be applied from any direction. Even if it takes, the intensity | strength in the junction part A of the side base 11, the partition base 12, and the pillar 13 can be raised, without bending or bending.

  Next, a modified example of the joint 6A will be described with reference to FIG. That is, the joint 6A shown in FIG. 3 is integrally formed and not divided. However, the present invention is not necessarily limited to this, and as shown in FIG. 1, the joint 6A is divided into connecting fittings 7, 8, and 9 as divided members. It is possible to use the joint 6A ′ formed as described above. That is, the joint 6 </ b> A ′ may be formed from the connection fittings 7, 8, and 9.

  Like this joint 6A ', by forming from a plurality of connecting fittings 7, 8, and 9, it is convenient for transportation and the manufacturing process can be simplified. In addition, there is an effect that the building square can be first positioned and then the connecting member can be attached.

This dividing position is parallel to the axis of the side base 11, the partition base 12 or the pillar 13.
Here, the axes of the side base 11, the partition base 12, and the column 13 refer to lines that are parallel to the longitudinal direction of these building squares. Thus, since the division | segmentation position is parallel to the axis | shaft of the side base 11, the partition base 12, or the pillar 13, attachment to the square for construction extended in an axial direction is easy.

  Further, as shown in FIG. 1, the division position is a position deviated from the axial center line of the side base 11, the partition base 12, or the column 13. By providing the division positions in this way, it is possible to provide a reinforcing plate or the like by passing through the axial center line of the side base 11, the partition base 12, and the pillar 13, and the strength can be further increased.

  Here, the joint 6A ′ is disassembled into three of the connecting fittings 7, 8, and 9. However, the present invention is not limited to this, and the joint 6A ′ is disassembled into two or four or more. It may be a thing. Moreover, although the connection metal fittings 7, 8, and 9 are made of, for example, a flat steel galvanized plate, the connection metal fittings 7, 8, and 9 are not limited to this as long as they have a strength capable of fixing a building square.

  Each of the connecting fitting 7 and the connecting fitting 8 has three arm portion forming members 7a, 7b, 7c and 8a, 8b, 8c that are orthogonal to each other. The cross sections of the arm portion forming members 7a, 7b, 7c, 8a, 8b, 8c have a right-angle shape. The connecting fitting 9 has three arm portion forming members 9a, 9b, and 9c extending in the T-shape. The arm portion forming member 9a has a U-shaped cross section, and the arm portion forming member 9b. -The cross section of 9c becomes a right-angled shape.

  The arm portion forming member 7a, the arm portion forming member 8a, and the arm portion forming member 9a are connected to each other by a bolt or the like, whereby the column arm portion 62 (FIG. 3) can be formed. Further, the arm portion forming member 7b and the arm portion forming member 8b, the arm portion forming member 7c and the arm portion forming member 9b, and the arm portion forming member 8c and the arm portion forming member 9c are connected to each other by bolts or the like. The base arm portions 63 (FIG. 3) can be formed.

  That is, the connecting metal 7 and the connecting metal 8 are connected to the side base 11, the partition base 12, and the column 13 from the intersection where the three ridgelines of the side base 11, the partition base 12, and the column 13 that face each other intersect at right angles. Are arranged so as to abut the surfaces of the side base 11, the partition base 12, and the pillar 13 in the extending direction.

  As shown in FIG. 1, the connecting metal 7 and the connecting metal 8 are located along the extending direction of the side base 11 and the partition base 12 at the position on the upper surface side of the ridge line in contact with the side base 11 and the partition base 12. For example, two bolt holes 65 are provided at equal intervals. Moreover, for example, three bolt holes 66 are provided at equal intervals along the extending direction of the side base 11 and the partition base 12 at the position on the side surface side of the ridge line.

  The bolt holes 65... 66 are formed so that the bolts to be inserted are located at substantially central portions of the side base 11, the partition base 12 and the pillar 13. Further, the number and formation positions of the bolt holes 65... 66 are merely examples, and the present invention is not limited thereto.

  Among these bolt holes 65... 66, anchor bolts 14 are provided in the bolt holes 65 provided on the upper surface side of the side base 11 and the partition base 12 with respect to the ridgelines of the side base 11 and the partition base 12. It extends vertically so as to penetrate the side base 11 or the partition base 12 and reach the foundation 1. The lower ends of the anchor bolts 14 are rectangular, while the upper ends of the anchor bolts 14 are tightened with nuts 15.

  Further, bolts 16... 17... 18 are inserted from bolt holes 66 provided on the side surfaces of the side base 11 and the partition base 12 with respect to the ridgeline of the side base 11 or the partition base 12. 17 and 18 are disposed through the inside of the side base 11 or the partition base 12.

  The bolts 16 penetrate through the inside of the partition base 12 from the arm part forming member 7b of the connecting metal 7 to the arm part forming member 8b of the connecting metal 8. The bolts 17 pass through the inside of the side base 11 from the arm portion forming member 7c of the connecting metal 7 to the arm portion forming member 9b of the connecting metal 9. The bolts 18 pass through the inside of the side base 11 from the arm portion forming member 8 c of the connecting metal 8 to the arm portion forming member 9 c of the connecting metal 9. These bolts 16... 17... 18 are tightened with nuts 19.

  The arm forming member 7a of the connecting metal 7 and the arm forming member 8a of the connecting metal 8 each have three bolt holes 67 at equal intervals in the vertical direction at positions facing each other via the pillars 13. is doing. The number and position of the bolt holes 67 are merely examples, and the present invention is not limited thereto.

  And bolt 22 ... penetrates pillar 13 from this bolt hole 67 ..., and it is tightened with nut 23 ... provided in connecting metal fitting 7 side and connecting metal fitting 8 side.

  In addition, the connection fitting 7 has a flange portion 24 as an L-shaped flange that is erected substantially perpendicularly to the column 13 or the partition base 12 along the boundary with the connection fitting 8. In addition, an L-shaped flange portion 25 erected substantially perpendicularly to the column 13 or the side base 11 is provided along a boundary portion with the connecting metal fitting 9.

  The flange portion 24 has three bolt holes 68 at equal intervals along the pillar 13, and has three bolt holes 69 at equal intervals along the partition base 12, that is, bolts Tightening is possible. The flange portion 25 has three bolt holes 70 at equal intervals along the pillar 13, and has three bolt holes 71 at equal intervals along the side base 11.

  The connecting fitting 8 has an L-shaped flange portion 26 erected substantially perpendicular to the pillar 13 or the partition base 12 along the boundary portion with the connecting fitting 7. The L-shaped flange portion 27 erected substantially perpendicularly to the pillar 13 and the side base 11 is provided along the boundary portion.

  The flange portion 26 has three bolt holes (not shown) at equal intervals along the pillar 13, and has three bolt holes (not shown) at equal intervals along the partition base 12. . Further, the flange portion 27 has three bolt holes (not shown) at equal intervals along the pillars, and has three bolt holes 72 at equal intervals along the side base 11.

  The connecting fitting 8 has reinforcing ribs 28 as triangular reinforcing members (triangular plates) having right-angle portions along the flange portions 26 formed on the arm portion forming member 8a and the arm portion forming member 8b. is doing. The reinforcing rib 28 has two arm portions extending in two directions, ie, a pillar arm portion 62 (FIG. 3) and a base arm portion 63 (FIG. 3) adjacent to the pillar arm portion 62 in each direction. They are tied and reinforced.

  The reinforcing rib 28 has two opening holes 73. The opening holes 73 can be used as bolt holes for disposing a grazing or the like for increasing the strength. It should be noted that the position, size, and number of the opening holes 73 are not limited to this.

  In the present embodiment, the reinforcing rib 28 is provided on the flange portion on the connection fitting 8 side. However, the present invention is not limited to this, and the reinforcement rib 28 may be provided on the connection fitting 7 side. And may be provided on both of the connecting bracket 8 side. Further, the reinforcing rib 28 is not limited to a triangular shape, and may simply be a rod shape that connects adjacent arm portions.

  The connection fitting 9 is disposed on the side opposite to the side on which the partition base 12 of the side base 11 is abutted. Three arm portion forming members 9 a, 9 b, and 9 c extending in a T shape of the coupling metal 9 are formed along the side base 11 and the pillar 13, and are in contact with the surfaces of the side base 11 and the pillar 13. Yes. The connection fitting 9 has a total of six bolt holes (not shown) on the side surface side of the side base 11 along the extending direction of the side base 11.

  As described above, the bolts 17... 18 are passed through the bolt holes 66... Until the connecting metal fittings 7 and 8 are reached, and the side base 11 is passed through and tightened by the nuts 20.

  Further, the connection fitting 9 has an L-shaped flange portion 29 erected substantially perpendicular to the column 13 or the side base 11 along the boundary portion with the connection fitting 7. An L-shaped flange portion 30 erected substantially perpendicularly to the pillar 13 or the side base 11 is provided along a boundary portion with the metal fitting 8. Both the flange portions 29 and 30 have three bolt holes (not shown) at equal intervals along the pillar 13, while three bolt holes (not shown) at equal intervals along the side base 11. Have.

  Further, the connecting fitting 9 has a triangular reinforcing rib 31 having a right angle portion along the flange portion 29 formed on the arm portion forming member 9a and the arm portion forming member 9b, while the arm portion forming member. 9a and a triangular reinforcing rib 32 having a right angle portion along the flange portion 30 formed on the arm portion forming member 9c.

  And the flange part 29 formed in the connection metal fitting 9 and the flange part 25 formed in the connection metal part 7 are made to face each other, and bolts 33... Are formed in bolt holes (not shown) formed in both flange parts 29 and 25. Inserted and tightened with nuts 34.

  Further, the flange portion 30 formed on the connecting metal fitting 9 and the flange portion 27 formed on the connecting metal fitting 8 are opposed to each other so that bolt holes (not shown) formed in the flange portion 30 and the flange portion 27 are formed. Bolts 35 are inserted into the bolt holes 72 and tightened with nuts 36.

  Further, the flange portion 24 formed on the connection fitting 7 and the flange portion 26 formed on the connection fitting 8 are opposed to each other so that the bolt holes 68... 69. Bolts 37 are inserted into bolt holes (not shown) and tightened with nuts 38.

As described above, the joint strength at the joint portion A is increased by fixing the joint portion A of the side base 11, the partition base 12, and the column 13 with the joint 6 </ b> A having the connection fittings 7, 8, and 9. Can do.
[Embodiment 2]
Another embodiment of the present invention will be described with reference to FIG. In this embodiment, in order to explain the difference from the first embodiment, for the sake of convenience of explanation, members having the same functions as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Is omitted.

In the first embodiment, the joint 6A used in the joint portion A shown in FIG. 2 has been described. However, in the present embodiment, the joint 6B as an enclosure fitting used in the joint portion B shown in FIG. Will be described. In addition, although the enclosure metal fitting used for the junction part B is divided | segmented, it is not necessarily restricted to this, As shown in FIG. 3, it may be integrally formed.

  In the joint portion B, as shown in FIG. 4, columns 13 and beams (construction squares) 40 are arranged orthogonal to each other. One end of a beam (construction square) 39 is in contact with one side of the intersection of the column 13 and the beam 40. Unlike the joint portion A, the pillar 13 extends downward.

  For this reason, the joint 6B also surrounds the pillar 13 extending downward. Specifically, the joint 6B can be divided into connecting brackets 41, 42, and 43 as divided members. These connecting brackets 41, 42, and 43 are connected to the connecting brackets 7, 8, and 9 shown in FIG. It is also extended downward.

  The connection fitting 41 has an L-shaped flange portion 44 erected substantially perpendicularly to the column 13 or the beam 39 along the boundary portion with the connection fitting 42 on the lower side. An L-shaped flange portion 45 erected substantially perpendicularly to the column 13 or the beam 40 is provided along a boundary portion with the connection fitting 43.

  The flange portion 44 has three bolt holes 74 at equal intervals along the pillar 13, and has three bolt holes 75 at equal intervals along the beam 39. The flange portion 45 has three bolt holes 76 at equal intervals along the pillar 13, and has three bolt holes 77 at equal intervals along the beam 40.

  The connection fitting 42 has an L-shaped flange portion 46 erected substantially perpendicular to the column 13 or the beam 39 along the boundary portion with the connection fitting 41 on the lower side, An L-shaped flange portion 47 erected substantially perpendicular to the column 13 or the beam 40 is provided along a boundary portion with the connecting metal fitting 43.

  The flange portion 46 has three bolt holes (not shown) at equal intervals along the column 13, and has three bolt holes (not shown) at equal intervals along the beam 39. The flange portion 47 has three bolt holes (not shown) at equal intervals along the pillar 13, and has three bolt holes (not shown) at equal intervals along the beam 40. Yes.

  Further, the connection fitting 41 has triangular reinforcing ribs (reinforcing members, triangular plates) 48 so as to be along substantially the center of the side surfaces of the beams 39 and 40. In the present embodiment, the reinforcing rib 48 is provided on the connection fitting 41 side. However, the present invention is not limited to this, and the reinforcement rib 48 may be provided on the connection fitting 42 side. It may be provided on both sides. Moreover, you may arrange | position an opening hole to a reinforcement rib similarly to the said embodiment.

  The connection fitting 43 has an L-shaped flange portion 49 erected substantially perpendicular to the column 13 or the beam 40 along a boundary portion with the connection fitting 41, while An L-shaped flange portion 50 erected substantially perpendicular to the column 13 or the beam 40 is provided along the boundary portion.

  As in the first embodiment, a flange portion is also provided on the upper side, and is fastened with bolts and nuts.

  Further, in the present embodiment, the flange portion 44 formed on the connecting fitting 41 and the flange portion 46 formed on the connecting fitting 42 are opposed to each other so that the bolt holes 74, 74,. Bolts 51 are inserted into bolt holes (not shown) formed in the flange portion 46 and tightened with nuts 52.

  Further, the flange portion 45 formed on the connection fitting 41 and the flange portion 49 formed on the connection fitting 43 are opposed to each other so that the bolt holes 76... 77. Bolts 53 are inserted into the bolt holes (not shown) and tightened with nuts 54.

  Further, the flange portion 47 formed in the connecting metal fitting 42 and the flange portion 50 formed in the connecting metal fitting 43 are opposed to each other, and bolts 55... Are formed in bolt holes (not shown) formed in both the flange portions 47. Inserted and tightened with nuts 56. That is, the flange portions 44, 45, 46, 47, 49 and 50 can all be bolted.

  As described above, also in the present embodiment, the joint portion B of the column 13 and the beams 39 and 40 is surrounded and fixed by the joint 6B having the connection fittings 41, 42, and 43, so that Bonding strength can be increased.

  Although not shown in the figure, by using a joint 6D (not shown) in which the coupling metal 43 and the coupling metal 42 are provided instead of the coupling metal 43 at the position where the coupling metal 43 is disposed in the joint 6B, FIG. By enclosing and fixing the joint portion D shown in FIG. 2, the joint strength of the joint portion D can be increased.

  In addition, the connection fittings 41, 42, and 43 have a plurality of arm portion forming members as in the first embodiment, and the arm portions (enclosures) are formed by connecting the arm portion forming members. Is formed. In this case, unlike the first embodiment, two column arm portions 62 are provided.

Although not shown, the reinforcing ribs 28, 31, 32, and 48 shown in FIG. 4 may also have an opening hole as in the first embodiment.
[Embodiment 3]
Another embodiment of the present invention will be described with reference to FIG. In this embodiment, in order to explain differences from the above embodiment, for convenience of explanation, members having the same functions as those described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. Omitted.

  In the present embodiment, a joint 6C used in the joint portion C shown in FIG. 2 will be described.

  In the present embodiment, as shown in FIG. 5, the upper end of the column 13 is in contact with the lower surface of a horizontally arranged beam (building square) 57, while the column 13 of the beam 57 is in contact. One end of a hut beam (construction square) 58 extending obliquely upward is in contact with the upper side surface of the portion.

  For this reason, the joint 6C is connected to the connecting bracket 59 so as to surround the column 13, the beam 57, and the roof beam 58 extending in a total of four directions including the three T-shaped directions in addition to the three T-shaped directions.・ Has 60 ・ 61 Further, the connection fitting 59 has triangular reinforcing ribs (reinforcing portions) 64 so as to be along substantially the center of the side surfaces of the beam 57 and the hut beam 58. Also in the present embodiment, similarly to the first and second embodiments described above, the connection fittings 59, 60 and 61 can be bolted, and are fastened by bolts and nuts.

  As described above, also in the present embodiment, the joint 6C having the connection fittings 59, 60, 61 is surrounded by the joint portion C of the column 13, the beam 57, and the hut beam 58, and fixed. The joint strength in the part C can be increased.

  The connection fittings 59, 60, 61 have a plurality of arm portion forming members as in the first embodiment and the second embodiment, and the arm portions are connected by connecting the arm portion forming members. (Enclosure) is formed. Further, as can be seen from the present embodiment, the arm portions do not necessarily have to be orthogonal to each other, and the arm portions may be disposed obliquely.

Although not shown, the reinforcing rib 64 shown in FIG. 5 may also have an opening hole as in the first embodiment.
[Embodiment 4]
Another embodiment of the present invention will be described with reference to FIGS. In this embodiment, in order to explain differences from the above embodiment, for convenience of explanation, members having the same functions as those described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. Omitted.

  In the present embodiment, the configuration of the reinforcing rib described above is modified. FIG. 8 is a modified example of the joint 6B as the enclosure fitting used in the joint portion B (see FIG. 2) shown in FIG. In FIG. 4, four reinforcing ribs are provided as indicated by reference numerals 28, 31, 32, and 48. However, in the present embodiment, as shown in FIG. And the reinforcing rib 101 has two reinforcing ribs.

  Specifically, as shown in FIG. 8, the reinforcing rib 100 is a triangular member having a right angle portion along the flange portion 44, and is arranged so as to be substantially symmetric with the reinforcing rib 28 with respect to the beam 39. ing. The reinforcing rib 101 is a triangular member having a right-angled portion along the flange portion 45, and is arranged so as to be substantially symmetrical with the reinforcing rib 31 with respect to the beam 40.

  In particular, in the present embodiment, as shown in the figure, the hypotenuses 102, 103, 104, 105, 106, and 107 of the triangular reinforcing ribs 28, 31, 32, 48, 100, and 101 have a U-shape. It has a folded structure. As used herein, the “slope side” is a side that constitutes the reinforcing ribs 28, 31, 32, 48, 100, and 101, and refers to a side that is not parallel to either the column 13 or the beams 39 and 40. FIG. 9 is a view showing a cross section of the hypotenuse 102.

Unlike the other sides, the hypotenuse 102 is not directly connected to the flange portion 26. Therefore, when a load is applied to the reinforcing rib 28, the strength of the hypotenuse 102 is relatively weak and there is a problem such as cracking. On the other hand, in this embodiment, as shown in this figure, the hypotenuse 102 is folded back in a U-shape. For this reason, the strength of the entire reinforcing rib 28 can be increased. The folded portion is not limited to the U-shape, and may be a U-shape.
[Embodiment 5]
The “U-shaped folding” described in the fourth embodiment is not limited to the joint portion B (FIG. 2), and may be another joint portion. Moreover, the joining part shown in each said embodiment is only an example, For example, the following joining parts may be sufficient. Since the joint portion of the present embodiment is a modification of the joint 6C used in the joint portion C shown in FIG. 5 in the third embodiment, the difference is briefly described with reference to FIG. Explained.

  In place of the shed beam 58 extending obliquely upward in FIG. 5 described above, a beam 110 arranged perpendicular to the beam 57 and the column 13 may be provided on the side of the beam 57 as shown in FIG. . Furthermore, in this embodiment, as shown in FIG. 10, reinforcing ribs 111 and 112 which are triangular members having right-angle portions along the flange portion 49 and the flange portion 46 may be provided. Furthermore, as shown in FIG. 10, “folding in a U-shape” may be provided on the oblique sides of the reinforcing ribs 64, 111, and 112.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Especially this invention can be suitably utilized as a coupling | joint of the building square material in a wooden building.

It is a perspective view which shows the coupling for wooden constructions of one Embodiment of this invention. It is a front view which simplifies and shows the frame of the wooden building using the joint for wooden structures of this invention. It is a perspective view which shows the modification of the coupling | bonding for wood shown in FIG. It is a perspective view which shows the coupling for wooden buildings of other embodiment of this invention. It is a perspective view which shows the coupling for wooden buildings of further another embodiment of this invention. It is a perspective view which shows the conventional wooden building joint. It is a perspective view which shows the conventional coupling for wooden buildings. It is a perspective view which shows the coupling for wooden buildings of further another embodiment of this invention. It is a figure which shows the structure of the hypotenuse of the reinforcement rib shown in FIG. It is a perspective view which shows the coupling for wooden buildings of further another embodiment of this invention.

Explanation of symbols

2 Foundation (Square for building)
3 Pillars (Square for building)
4 Beam (Square for building)
5 Hut Liang (Square for building)
6A, 6B, 6C, 6D Fitting (enclosure)
7, 8, 9 Connecting bracket (divided member)
11 Side foundation (Square for building)
12 Partition base (Square for building)
13 Pillars (Square for building)
24, 25, 26, 27 Flange (flange)
28 Reinforcement rib (Reinforcement member; Triangular plate)
29, 30 Flange (Flange)
31, 32 Reinforcement rib (Reinforcement member; Triangular plate)
39 Beam (Square for building)
40 Beam (Square for building)
41, 42, 43 Connecting bracket (split member)
44, 45, 46, 47 Flange (flange)
48 Reinforcement rib (Reinforcement member; Triangular plate)
49, 50 Flange (Flange)
57 Beam (Square for building)
58 Hut Liang (Square for building)
59, 60, 61 Connecting bracket (divided member)
62 Pillar arm (enclosure)
63 Base arm (enclosure)
100 ・ 101 Reinforcement rib (Reinforcement member; Triangular plate)
102/103/104/105/106/107 hypotenuse 110 Beam (Square for building)
111 ・ 112 Reinforcement rib (Reinforcement member; Triangular plate)
A, B, C, D Joint part

Claims (9)

In a wooden building joint that joins together a plurality of building squares that form the framework of a wooden building,
A wooden building joint, comprising: a bracket that is disposed at a joint portion where the building square members are joined to each other, and surrounds the joint portion to fix the building square members together. The enclosure bracket is
2. The wooden building joint according to claim 1, wherein the wooden building joint is formed of an enclosure in at least three directions so as to join the building square members to each other. The enclosure bracket is
The joint for wooden construction according to claim 1 or 2, wherein the joint is formed from a plurality of divided members.   4. The wooden building joint according to claim 3, wherein split positions of the plurality of split members are parallel to an axis of the building square.   The wooden building joint according to claim 4, wherein the dividing positions of the plurality of dividing members are deviated from the axial center line of the building square.   The wooden building joint according to any one of claims 3 to 5, wherein the split member is formed with a flange capable of being bolted.   The wooden building joint according to any one of claims 2 to 6, wherein the enclosure metal has reinforcing members that reinforce the enclosure in a plurality of directions between each direction.   8. The joint for wooden construction according to claim 7, wherein the reinforcing member is a triangular plate which is erected substantially vertically along the enclosure in two directions and has an opening hole.   The reinforcing member is a triangular plate which is erected substantially vertically along the enclosure in two directions and has an opening hole, and the oblique side connecting the enclosure in the two directions of the triangular plate is folded back. The wooden building joint according to claim 7, characterized in that:

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