Joint structure

Abstract

This invention provides a joint structure in which the rotational rigidity and load-bearing capacity at the intersection of the first and second extended members are enhanced using wooden members. [Solution] The joint structure 10 comprises a wooden column 11 extending in a first direction Z, a wooden beam 12 extending in a second direction X different from the first direction Z and arranged to intersect with the column 11, and a wooden joint member 20 arranged at the intersection 13 of the column 11 and the beam 12. The joint member 20 has a corner fitting portion 25 that fits into the corner formed by the column 11 and the beam 12, a first connecting portion 26 that connects the corner fitting portions 25 to each other in the first direction Z, and a second connecting portion 27 that connects the corner fitting portions 25 to each other in the second direction X.

Description

Technical Field

[0001] The present disclosure relates to a joint structure in which an intersection between a wooden first extending member and a wooden second extending member is reinforced by a joint member.

Background Art

[0002] Conventionally, in wooden construction, it has been desired to increase the rotational rigidity and strength at the intersection of a first extending member such as a column and a second extending member such as a beam. Patent Document 1 discloses a technique for increasing the rotational rigidity and strength at the intersection by using a right-angle metal fitting formed of an iron plate disposed at each corner formed by the first extending member and the second extending member and a plate-shaped octagonal metal fitting connecting the right-angle metal fittings to each other.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] On the other hand, in wooden construction, there is a need for a technique for increasing the rotational rigidity and strength at the intersection of the first extending member and the second extending member using wooden members instead of metal fittings such as those in Patent Document 1.

Means for Solving the Problems

[0005] A joint structure that solves the above problems comprises a first wooden extending member extending in a first direction, a second wooden extending member extending in a second direction different from the first direction and arranged to intersect with the first extending member, and a wooden joint member arranged at the intersection of the first extending member and the second extending member. The joint member has a corner fitting portion that fits into the corner formed by the first extending member and the second extending member, a first connecting portion that connects the corner fitting portions to each other in the first direction, and a second connecting portion that connects the corner fitting portions to each other in the second direction. [Effects of the Invention]

[0006] According to this disclosure, the rotational stiffness and load-bearing capacity at the intersection of the first extended member and the second extended member can be increased using a wooden member. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a perspective view showing a schematic configuration of one embodiment of the joining structure. [Figure 2] Figure 2 is an exploded perspective view showing a schematic configuration of one embodiment of the joint structure. [Figure 3] Figure 3 is a schematic perspective view illustrating the method of joining the first panel material and the second panel material. [Figure 4] Figure 4 is a front view of a joint member, illustrating the various parts of the joint member. [Figure 5] Figure 5 is a perspective view showing a schematic configuration of another embodiment of the joint structure in a modified example. [Figure 6] Figure 6 is a perspective view showing a schematic configuration of another embodiment of the joint structure in a modified example. [Figure 7] Figure 7 is an exploded perspective view showing a schematic configuration of another embodiment of the joint structure in a modified example. [Figure 8] In the modified example, Figure 8(a) is a perspective view showing a schematic configuration of another embodiment of the joint structure, and Figure 8(b) is a schematic side view showing a joint member having a decorative panel. [Modes for carrying out the invention]

[0008] An embodiment of the joint structure will be described with reference to Figures 1 to 4. As shown in Figure 1, the joint structure 10 comprises a column 11, which is a first wooden extending member extending in a first direction Z; a beam 12, which is a second wooden extending member extending in a second direction X intersecting the first direction Z; and a wooden joint member 20 disposed at the connection point between the column 11 and the beam 12.

[0009] In this embodiment, the column 11 and the beam 12 are connected to each other by intersecting fittings. After connection, the column 11 and the beam 12 have a plane-symmetrical shape with a predetermined plane including the first direction Z and the second direction X as the plane of symmetry in the portion where the joint member 20 is installed.

[0010] The joint member 20 is provided to cover the intersection 13 between the connected column 11 and beam 12 and the area around the intersection 13. The joint member 20 comprises a first panel material 21 and a second panel material 22 as joint elements. The first panel material 21 and the second panel material 22 face each other in a third direction Y that is perpendicular to the first direction Z and the second direction X. The first panel material 21 has a rectangular shape that can cover each corner formed by the column 11 and beam 12, and the intersection 13 between the column 11 and beam 12, from one side in the third direction Y. The second panel material 22 has a rectangular shape that can cover each corner formed by the column 11 and beam 12, and the intersection 13 between the column 11 and beam 12, from the other side in the third direction Y. The joint member 20 is installed by arranging the first panel material 21 and the second panel material 22 so as to sandwich the column 11 and beam 12 in the third direction Y, and then joining them with the connecting material 23.

[0011] As shown in Figure 2, the first panel material 21 has various recesses that open into the first joining surface 30 to which it is joined to the second panel material 22. The first panel material 21 has various recesses, including a first column fitting recess 31 into which the column 11 fits, a first beam fitting recess 32 into which the beam 12 fits, and a first crossing fitting recess 33 into which the intersection portion 13 of the column 11 and the beam 12 fits. The second panel material 22 has various recesses that open into the second joining surface 40 to which it is joined to the first panel material 21. The second panel material 22 has various recesses, including a second column fitting recess 41 into which the column 11 fits, a second beam fitting recess 42 into which the beam 12 fits, and a second crossing fitting recess 43 into which the intersection portion 13 of the column 11 and the beam 12 fits. The first panel material 21 and the second panel material 22 are arranged such that their various recesses fit into the column 11 and beam 12, and their joint surfaces 30 and 40 are in contact with each other.

[0012] As shown in Figure 3, the first panel material 21 and the second panel material 22 are joined by a joining member 23, with various recesses fitting into the column 11 and beam 12, and the joining surfaces 30 and 40 in contact with each other. The joining member 23 is provided to join the outer corner of the first panel material 21 and the outer corner of the second panel material 22. The joint member 20 is formed by joining the first panel material 21 and the second panel material 22 with the joining member 23. In this embodiment, each panel material 21 and 22 is formed to the same shape so that the joining surfaces 30 and 40 are arranged on the symmetrical plane described above.

[0013] As shown in Figure 4, the joint member 20 formed in this manner has a corner fitting portion 25, a first connecting portion 26, a second connecting portion 27, and a third connecting portion 28. The corner fitting portion 25 is the part that fits into the corner formed by the column 11 and the beam 12.

[0014] The first connecting portion 26 is the part that connects the corner fitting portion 25 in the first direction Z. In Figure 4, the first connecting portion 26 is provided on both the front and back sides of the paper. The second connecting portion 27 is the part that connects the corner fitting portion 25 in the second direction X. In Figure 4, the second connecting portion 27 is provided on both the front and back sides of the paper.

[0015] The third connecting portion 28 is a portion that covers the intersection portion 13, and is a portion that connects the second connecting portion 27 in the first direction Z and connects the first connecting portion 26 in the second direction X. The third connecting portion 28 is provided on the front side and the back side of the paper surface in FIG. 4.

[0016] The operation and effects of the above embodiment will be described. (1) By installing the wooden joint member 20 at the intersection portion 13 of the column 11 and the beam 12, the spaces at the corners of the column 11 and the beam 12 are filled by the corner fitting portions 25, and the corner fitting portions 25 are connected by the connecting portions 26 and 27. As a result, when a rotational moment acts around the intersection portion 13, not only the intersection portion 13 but also the entire joint member 20 can resist the rotational moment. As a result, since it can effectively resist the rotational moment, the rotational rigidity and the ultimate strength at the intersection portion 13 of the column 11 and the beam 12 can be increased.

[0017] (2) The joint member 20 includes a first panel member 21 disposed so as to cover the corner portion and the intersection portion 13 from one side in the third direction Y orthogonal to the first direction Z and the second direction X, and a second panel member 22 disposed so as to cover the corner portion and the intersection portion 13 from the other side in the third direction Y and joined to the first panel member 21.

[0018] According to such a configuration, the joint member 20 is formed by joining the first panel member 21 and the second panel member 22 disposed so as to sandwich the column 11 and the beam 12 in the third direction Y with a joining material 23. As a result, the joint member 20 can be installed with high workability. Further, by forming the third connecting portion 28 in the joint member 20, it can more effectively resist the rotational moment around the intersection portion 13.

[0019] (3) Each panel material 21, 22 has fitting recesses that open to the joint surfaces 30, 40, including column fitting recesses 31, 41, beam fitting recesses 32, 42, and cross fitting recesses 33, 43. With this configuration, for example, compared to a configuration in which various fitting recesses are formed on one of the panel materials 21, 22 and the other functions as a decorative panel, the rigidity of both the first panel material 21 and the second panel material 22, and consequently the rigidity of the joint member 20, can be ensured. Furthermore, the thickness of the joint member 20 can be reduced while obtaining the same rigidity.

[0020] (4) The first panel material 21 and the second panel material 22 are formed in a polygonal shape, for example, rectangular, having various interlocking recesses. This improves the yield when manufacturing each panel material 21 and 22 from a wooden base material. Furthermore, since each panel material 21 and 22 has the same shape, further improvements in yield can be achieved.

[0021] (5) The first panel material 21 and the second panel material 22 are joined to each other by a joining material 23 at the outer periphery of each panel material 21 and 22. As a result, even if an external force acts on the outer periphery of the joint member 20 that pulls the first panel material 21 and the second panel material 22 apart in the third direction Y, it is possible to effectively resist that external force.

[0022] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically. As shown in Figure 5, the polygonal first panel material 21 and the second panel material 22 may have an octagonal shape with a pair of sides through which the column 11 passes and a pair of sides through which the beam 12 passes. With this configuration, the yield of the base material can be further improved while ensuring the necessary rigidity.

[0023] As shown in Figure 6, the joint member 20 may be configured such that various fitting recesses are formed in the first panel material 21, and the second panel material 22 functions as a decorative panel. With this configuration, only the first panel material 21 needs to be fitted into the column 11 and beam 12, thus improving workability.

[0024] As shown in Figure 7, the joint member 20 may be installed at the intersection of the column 11 and beam 12 that are connected to each other by a through-joint. In this configuration, both the first panel material 21 and the second panel material 22 have various fitting recesses formed in them according to the shape of the column 11 and beam 12 after connection.

[0025] As shown in Figure 8(a), the joint member 20 may consist of a pair of first joint elements 51 and a pair of second joint elements 52. The pair of first joint elements 51 have a first connecting portion 53 that abuts the beam 12 from one side in the third direction Y and are arranged to sandwich the column 11 in the second direction X. The pair of second joint elements 52 have a second connecting portion 54 that abuts the column 11 from the other side in the third direction Y and are arranged to sandwich the beam 12 in the first direction Z. The first joint elements 51 and the second joint elements 52 are joined by a joining material 23 at each corner formed by the column 11 and the beam 12.

[0026] With this configuration, since there is no need to form a fitting recess in each joint element 51, 52, each joint element 51, 52 can be easily manufactured and the ease of installation is improved. The joint member 20 composed of the joint elements 51, 52 is suitable for structures in which, for example, a column 11 and a beam 12 are connected adjacent to each other in the third direction Y.

[0027] Furthermore, as shown in Figure 8(b), the joint member 20 having joint elements 51 and 52 may further include a first decorative panel 56 that covers the column 11 and the first joint element 51 from one side in the third direction Y, and a second decorative panel 57 that covers the beam 12 and the second joint element 52 from the other side in the third direction Y. With this configuration, the intersection of the column 11 and the beam 12, and each joint element 51 and 52 are covered with decorative panels 56 and 57, thereby improving the aesthetic appearance.

[0028] The joint member 20 is not limited to being provided at the intersection of the first extending member, the column 11, and the second extending member, the beam 12. For example, the joint member 20 may be provided at the intersection where the first extending member is a main beam and the second extending member is a secondary beam. Also, for example, the joint member 20 is not limited to the intersection where the first extending member and the second extending member are perpendicular, but may be provided at the intersection where the angle between the first extending member and the second extending member is 30° or 45°.

[0029] The joint member 20 may have a corner fitting portion, a first connecting portion, and a second connecting portion, and the joint element may be joined to at least one of the first extending member and the second extending member. [Explanation of Symbols]

[0030] 10...Joint structure, 11...Column, 12...Beam, 13...Intersection, 20...Joint member, 21...First panel material, 22...Second panel material, 23...Joint material, 25...Corner fitting part, 26...First connection part, 27...Second connection part, 28...Third connection part, 30...First joint surface, 31...First column fitting recess, 32...First beam fitting recess, 33...First intersection fitting recess, 40...Second joint surface, 41...Second column fitting recess, 42...Second beam fitting recess, 43...Second intersection fitting recess, 51...First joint element, 52...Second joint element, 53...First connection part, 54...Second connection part, 56...First decorative panel, 57...Second decorative panel.

Claims

1. A wooden first extending member extending in the first direction, A wooden second extending member extends in a second direction different from the first direction and is arranged to intersect with the first extending member, The device comprises a wooden joint member disposed at the intersection of the first extending member and the second extending member, The aforementioned joint member is, A corner fitting portion that fits into the corner formed by the first extending member and the second extending member, A first connecting portion that connects the corner fitting portions to each other in the first direction, A second connecting portion that connects the corner fitting portions to each other in the second direction, Joint structure.

2. The aforementioned joint member is, A first panel material is arranged to cover the corner from one side of a third direction perpendicular to the first and second directions, The second panel material is arranged to cover the corner from the other side of the third direction and is joined to the first panel material. The joining structure according to claim 1.

3. At least one of the first panel material and the second panel material is The joining surface to be joined to the other panel material has a fitting recess into which the first extending member and the second extending member fit. The joining structure according to claim 2.

4. The first panel material and the second panel material are formed in a polygonal shape having the fitting recess. The joining structure according to claim 3.

5. The first panel material and the second panel material are joined to each other at the outer periphery of each panel material. The joining structure according to any one of claims 2 to 4.

Images