Bundled member

Abstract

This bundled member comprises a plurality of wood members, each extending in a first direction, and at least one joining member for joining the plurality of wood members. The plurality of wood members includes first wood members and second wood members adjacent to the first wood members in a second direction intersecting the first direction. The at least one joining member includes a first joining member that joins the first wood members and the second wood members. Each first wood member includes a first groove that is provided on a first surface of the first wood member, such surface facing the second wood member, and the first groove extends along the first surface. Each second wood member includes a second groove that is provided on a second surface of the second wood member, such surface facing the first wood member, in a state in which the second groove faces the first groove, and the second groove extends along the second surface. The first joining members are accommodated across the first grooves and the second grooves, and join the first wood members and the second wood members.

Description

Binding material

[0001] The present disclosure relates to a binding material.

[0002] Patent Document 1 discloses a composite laminated timber made up of a plurality of laminated and bonded laminas.

[0003] Japanese Patent Application Laid-Open No. 2023-107469

[0004] The laminated wood of Patent Document 1 has room for improvement in terms of increasing strength.

[0005] The present disclosure aims to provide a binding material that can improve strength.

[0006] A binding material according to one embodiment of the present disclosure comprises: a plurality of wooden pieces each extending in a first direction; and at least one joining material joining the plurality of wooden pieces; wherein the plurality of wooden pieces includes a first wooden piece and a second wooden piece adjacent to the first wooden piece in a second direction intersecting the first direction; the at least one joining material includes a first joining material joining the first wooden piece and the second wooden piece; the first wooden piece is provided on a first surface of the first wooden piece facing the second wooden piece and has a first groove portion extending along the first surface; the second wooden piece is provided on a second surface of the second wooden piece facing the first wooden piece, facing the first groove portion, and has a second groove portion extending along the second surface; and the first joining material is accommodated across the first groove portion and the second groove portion to join the first wooden piece and the second wooden piece.

[0007] According to the present disclosure, a binding material capable of improving strength can be realized.

[0008] 1 is a perspective view of a binding material according to one embodiment of the present disclosure; FIG. 2 is a plan view of the binding material of FIG. 1 as viewed along the direction of arrow A; FIG. 3 is a plan view of the binding material of FIG. 1 as viewed along the direction of arrow B; FIG. 4 is a plan view of a first modified example of the binding material of FIG. 1; and FIG. 5 is a plan view of a second modified example of the binding material of FIG. 1.

[0009] An example of the present disclosure will be described below with reference to the accompanying drawings. The following description is merely exemplary in nature and does not limit the present disclosure, its applications, or uses. The accompanying drawings are schematic drawings, and the illustrated configurations and actual products may differ in dimensional ratios, etc. In the following description, terms such as "about" or "approximately" mean that the values, shapes, etc. following these terms include an acceptable range of error as determined by a person skilled in the art.

[0010] As shown in Figure 1, one embodiment of the binding material 1 of the present disclosure comprises a plurality of wooden pieces 10 each extending in a first direction (e.g., the X direction) and at least one joining material 20 joining the plurality of wooden pieces 10.

[0011] In this embodiment, the bundled material 1 includes nine wooden pieces 10 (hereinafter referred to as the first wooden piece 11 to the ninth wooden piece 19) and nine joining materials 20 (hereinafter referred to as the first joining material 21 to the ninth joining material 29). Each wooden piece 10 is a square timber (e.g., thinned cedar or cypress) measuring 45 mm to 450 mm square and 3,000 mm to 10,000 mm in the first direction X. Each joining material 20 is a julienned piece (also called a butterfly joint) made of cypress or zelkova. As an example, the first wooden piece 11 to the ninth wooden piece 19 have approximately the same size and shape, and the first joining material 21 to the ninth joining material 29 have approximately the same size and shape.

[0012] As shown in FIG. 1 , the first to ninth pieces 11 to 19 are positioned around the fifth piece 15, with the first to fourth pieces 14 and the sixth to ninth pieces 16 to 19 positioned around the fifth piece 15. The first piece 11, the third piece 13, the seventh piece 17, and the ninth piece 19 form the corners of the binding material 1. The direction intersecting the first direction X (e.g., the Y direction) is defined as the second direction, and the direction intersecting the first direction X and the second direction Y (e.g., the Z direction) is defined as the third direction. The second piece 12 is positioned between the first piece 11 and the third piece 13 in the second direction Y. The third piece 13 is adjacent to the second piece 12 in the second direction Y and is positioned on the opposite side of the first piece 11 in the second direction Y relative to the second piece 12. The fifth piece of wood 15 is located between the fourth piece of wood 14 and the sixth piece of wood 16 in the second direction Y, and the eighth piece of wood 18 is located between the seventh piece of wood 17 and the ninth piece of wood 19 in the second direction Y. The fourth piece of wood 14 is located between the first piece of wood 11 and the seventh piece of wood 17 in the third direction Z. The fourth piece of wood 14 is adjacent to the first piece of wood 11 in the third direction Z. The fifth piece of wood 15 is located between the second piece of wood 12 and the eighth piece of wood 18 in the third direction Z, and the sixth piece of wood 16 is located between the third piece of wood 13 and the ninth piece of wood 19 in the third direction Z.

[0013] As shown in FIG. 1 , the first bonding material 21, the second bonding material 22, the third bonding material 23, the fifth bonding material 25, and the sixth bonding material 26 each extend in the third direction Z, while the fourth bonding material 24, the seventh bonding material 27, the eighth bonding material 28, and the ninth bonding material 29 each extend in the second direction Y. In other words, the first bonding material 21 to the ninth bonding material 29 extend toward the end of the wood of the binding material 1. The first bonding material 21, the third bonding material 23, and the sixth bonding material 26 bond the first wooden piece 11, the second wooden piece 12, the fourth wooden piece 14, the fifth wooden piece 15, the seventh wooden piece 17, and the eighth wooden piece 18. The second bonding material 22 and the fifth bonding material 25 bond the second wooden piece 12, the third wooden piece 13, the fifth wooden piece 15, the sixth wooden piece 16, the eighth wooden piece 18, and the ninth wooden piece 19. The fourth bonding material 24 and the eighth bonding material 28 bond the first wood piece 11, the fourth wood piece 14, the second wood piece 12, the fifth wood piece 15, the third wood piece 13, and the sixth wood piece 16. The seventh bonding material 27 and the ninth bonding material 29 bond the fourth wood piece 14, the seventh wood piece 17, the fifth wood piece 15, the eighth wood piece 18, the sixth wood piece 16, and the ninth wood piece 19.

[0014] Fig. 2 is a plan view of the binding material 1 when viewed along the direction of arrow A in Fig. 1, and Fig. 3 is a plan view of the binding material 1 when viewed along the direction of arrow B in Fig. 1. As shown in Figs. 2 and 3, a second wooden piece 12 is adjacent to the first wooden piece 11 in the second direction Y, and a fourth wooden piece 14 is adjacent to the first wooden piece 11 in the third direction Z.

[0015] 2 , the first wood piece 11 has a first groove 112 provided on a first surface 111 facing the second wood piece 12 and extending along the first surface 111. The second wood piece 12 has a second groove 122 provided on a second surface 121 facing the first wood piece 11 and extending along the second surface 121, facing the first groove 112. The first bonding material 21 is accommodated across the first groove 112 and the second groove 122 to bond the first wood piece 11 and the second wood piece 12 together.

[0016] As shown in Figure 3, the first groove 112 and the second groove 122 extend in the third direction Z. The first groove 112 penetrates the first wooden piece 11 in the third direction Z, and the second groove 122 penetrates the second wooden piece 12 in the third direction Z. Grooves of approximately the same shape and size as the first groove 112 are formed on the surface of the fourth wooden piece 14 facing the fifth wooden piece 15 and the surface of the seventh wooden piece 17 facing the eighth wooden piece 18, respectively, so as to be aligned in a straight line with the first groove 112, and together with the first groove 112, form a first groove group 1121. Grooves having substantially the same shape and size as the second grooves 122 are formed on the surface of the fifth wood piece 15 facing the fourth wood piece 14 and the surface of the eighth wood piece 18 facing the seventh wood piece 17, respectively, so as to be aligned in a straight line with the second grooves 122, and together with the second grooves 122, form a second groove group 1221. The first bonding material 21 is accommodated in the first groove group 1121 and the second groove group 1221.

[0017] As shown in FIG. 2 , the second wood piece 12 has a third groove 124 extending along a third surface 123 of the second wood piece 12 facing the third wood piece 13. The third wood piece 13 has a fourth groove 132 extending along the fourth surface 131 of the third wood piece 13 facing the second wood piece 12, facing the third groove 124. The second bonding material 22 is accommodated across the third groove 124 and the fourth groove 132, bonding the second wood piece 12 and the third wood piece 13. In the first direction X, the first bonding material 21 and the second bonding material 22 are located at different positions. As an example, the dimension D1 between the first bonding material 21 and the second bonding material 22 in the first direction X is 300 mm to 500 mm. For example, the linear distance between the center of the first bonding material 21 in the first direction X and the center of the second bonding material 22 in the first direction X is defined as a dimension D1.

[0018] As shown in Figure 3, the third groove 124 and the fourth groove 132 extend in the third direction Z. The third groove 124 penetrates the second wood piece 12 in the third direction Z, and the fourth groove 132 penetrates the third wood piece 13 in the third direction Z. Grooves of approximately the same shape and size as the third groove 124 are formed on the surface of the fifth wood piece 15 facing the sixth wood piece 16 and the surface of the eighth wood piece 18 facing the ninth wood piece 19, respectively, so as to be aligned in a straight line with the third groove 124, and together with the third groove 124, form a third groove group 1241. Grooves having substantially the same shape and size as the fourth grooves 132 are formed on the surface of the sixth wood piece 16 facing the fifth wood piece 15 and the surface of the ninth wood piece 19 facing the eighth wood piece 18, respectively, so as to be aligned in a straight line with the fourth grooves 132, and together with the fourth grooves 132, form a fourth groove group 1321. The second bonding material 22 is accommodated in the third groove group 1241 and the fourth groove group 1321.

[0019] 2 , the first wooden piece 11 has a fifth groove 113 provided on the first surface 111, extending along the first surface 111, and spaced apart in the first direction X from the first groove 112. The second wooden piece 12 has a sixth groove 125 provided on the second surface 121 facing the fifth groove 113 and extending along the second surface 121. The third bonding material 23 is housed across the fifth groove 113 and the sixth groove 125, bonding the first wooden piece 11 and the second wooden piece 12. The second bonding material 22 is located between the first bonding material 21 and the third bonding material 23 in the first direction X.

[0020] As shown in Figure 3, the fifth groove portion 113 and the sixth groove portion 125 extend in the third direction Z. The fifth groove portion 113 is configured substantially identical to the first groove portion 112, and the sixth groove portion 125 is configured substantially identical to the second groove portion 122. Grooves of substantially the same shape and size as the fifth groove portion 113 are formed on the surface of the fourth wooden piece 14 facing the fifth wooden piece 15 and the surface of the seventh wooden piece 17 facing the eighth wooden piece 18, respectively, so as to be aligned in a straight line with the fifth groove portion 113, and together with the fifth groove portion 113, form a fifth groove group 1131. Grooves having substantially the same shape and size as the sixth grooves 125 are formed on the surface of the fifth wood piece 15 facing the fourth wood piece 14 and the surface of the eighth wood piece 18 facing the seventh wood piece 17, respectively, so as to be aligned in a straight line with the sixth grooves 125, and together with the sixth grooves 125, form a sixth groove group 1251. The third bonding material 23 is accommodated in the fifth groove group 1131 and the sixth groove group 1251.

[0021] As shown in FIG. 2 , the second wood 12, the fifth wood 15, and the eighth wood 18 each have a groove formed therein that is spaced apart in the first direction X from the third groove 124 and the third groove group 1241 and has the same configuration as the third groove 124, forming a 3-2 groove group 1242 as a whole. The third wood 13, the sixth wood 16, and the ninth wood 19 each have a groove formed therein that is spaced apart in the first direction X from the fourth groove 132 and the fourth groove group 1321 and has the same configuration as the fourth groove 132, forming a 4-2 groove group 1322 as a whole. The fifth bonding material 25 is housed in the 3-2 groove group 1242 and the 4-2 groove group 1322. In the first direction X, the fifth groove portion 113 and the fifth groove group 1131 are located between the third groove portion 124 and the third groove group 1241 and the 3-2 groove group 1242, and the sixth groove portion 125 and the sixth groove group 1251 are located between the fourth groove portion 132 and the fourth groove group 1321 and the 4-2 groove group 1322.

[0022] As shown in FIG. 2 , the first wood 11, the fourth wood 14, and the seventh wood 17 each have a groove formed therein that is spaced apart in the first direction X from the fifth groove 113 and the fifth groove group 1131 and has the same configuration as the first groove 112, forming a first-second groove group 1122 as a whole. The second wood 12, the fifth wood 15, and the eighth wood 18 each have a groove formed therein that is spaced apart in the first direction X from the sixth groove 125 and the sixth groove group 1251 and has the same configuration as the second groove 122, forming a second-second groove group 1222 as a whole. The sixth bonding material 26 is housed in the first-second groove group 1122 and the second-second groove group 1222. In the first direction X, the fifth groove portion 113 and the fifth groove group 1131 are located between the first groove portion 112 and the first groove group 1121 and the first-second groove group 1122, and the sixth groove portion 125 and the sixth groove group 1251 are located between the second groove portion 122 and the second groove group 1221 and the second-second groove group 1222.

[0023] As shown in Figure 3, the first piece of wood 11 has a seventh groove 115 on a fifth surface 114 facing the fourth piece of wood 14 and extending along the fifth surface 114. The fourth piece of wood 14 has an eighth groove 142 on a sixth surface 141 facing the first piece of wood 11 and extending along the sixth surface 141, facing the seventh groove 115. The fourth bonding material 24 is housed across the seventh groove 115 and the eighth groove 142, bonding the first piece of wood 11 and the fourth piece of wood 14 together. In the first direction X, the first bonding material 21 and the fourth bonding material 24 are located at different positions. As an example, the dimension D2 between the first bonding material 21 and the fourth bonding material 24 in the first direction X is 150 mm to 250 mm, and the dimension D3 between the fourth bonding material 24 and the second bonding material 22 in the first direction X is 150 mm to 250 mm. For example, the linear distance between the center of the first direction X of the first bonding material 21 and the center of the first direction X of the fourth bonding material 24 is defined as dimension D2, and the linear distance between the center of the first direction X of the fourth bonding material 24 and the center of the first direction X of the second bonding material 22 is defined as dimension D3.

[0024] 2 , the seventh groove 115 and the eighth groove 142 extend in the second direction Y. The seventh groove 115 penetrates the first wood piece 11 in the second direction Y, and the eighth groove 142 penetrates the fourth wood piece 14 in the second direction Y. Grooves having approximately the same shape and size as the seventh groove 115 are formed on the surface of the second wood piece 12 facing the fifth wood piece 15 and the surface of the third wood piece 13 facing the sixth wood piece 16, respectively, so as to be aligned in a straight line with the seventh groove 115, and together with the seventh groove 115, form a seventh groove group 1151. Grooves having substantially the same shape and size as the eighth groove 142 are formed on the surface of the fifth wood piece 15 facing the second wood piece 12 and the surface of the sixth wood piece 16 facing the third wood piece 13, respectively, so as to be aligned in a straight line with the eighth groove 142, and together with the eighth groove 142, form an eighth groove group 1421. The fourth bonding material 24 is accommodated in the seventh groove group 1151 and the eighth groove group 1421.

[0025] As shown in FIG. 3 , the fourth piece of wood 14 has a ninth groove 144 extending along a seventh surface 143 of the fourth piece of wood 14 facing the seventh piece of wood 17. The seventh piece of wood 17 has a tenth groove 172 extending along the eighth surface 171 of the seventh piece of wood 17 facing the fourth piece of wood 14, facing the ninth groove 144. The seventh bonding material 27 is accommodated across the ninth groove 144 and the tenth groove 172, bonding the fourth piece of wood 14 and the seventh piece of wood 17. In the first direction X, the fourth bonding material 24 and the seventh bonding material 27 are located at different positions. As an example, the dimension D4 between the fourth bonding material 24 and the seventh bonding material 27 in the first direction X is 300 mm to 500 mm. For example, the linear distance between the center of the fourth bonding material 24 in the first direction X and the center of the seventh bonding material 27 in the first direction X is defined as a dimension D4.

[0026] As shown in Figure 2, the ninth groove 144 and the tenth groove 172 extend in the second direction Y. The ninth groove 144 penetrates the fourth wood piece 14 in the second direction Y, and the tenth groove 172 penetrates the seventh wood piece 17 in the second direction Y. Grooves having the same configuration as the ninth groove 144 are formed on the surface of the fifth wood piece 15 facing the eighth wood piece 18 and the surface of the sixth wood piece 16 facing the ninth wood piece 19, respectively, so as to be aligned in a straight line with the ninth groove 144, and together with the ninth groove 144, form a ninth groove group 1441. Grooves having the same configuration as the tenth groove 172 are formed on the surface of the eighth wood piece 18 facing the fifth wood piece 15 and the surface of the ninth wood piece 19 facing the sixth wood piece 16, respectively, so as to be aligned in a straight line with the tenth groove 172, and together with the tenth groove 172, form a tenth groove group 1721. The seventh bonding material 27 is accommodated in the ninth groove group 1441 and the tenth groove group 1721.

[0027] As shown in Figure 3, the first wood 11, the second wood 12, and the third wood 13 each have a groove formed therein that is spaced apart in the first direction X from the seventh groove 115 and the seventh groove group 1151 and has the same configuration as the seventh groove 115, forming a 7-2 groove group 1152 as a whole. The fourth wood 14, the fifth wood 15, and the sixth wood 16 each have a groove formed therein that is spaced apart in the first direction X from the eighth groove 142 and the eighth groove group 1421 and has the same configuration as the eighth groove 142, forming an 8-2 groove group 1422 as a whole. The eighth bonding material 28 is housed in the 7-2 groove group 1152 and the 8-2 groove group 1422. In the first direction X, the ninth groove portion 144 and the ninth groove group 1441 are located between the seventh groove portion 115 and the seventh groove group 1151 and the 7-2 groove group 1152, and the tenth groove portion 172 and the tenth groove group 1721 are located between the eighth groove portion 142 and the eighth groove group 1421 and the 8-2 groove group 1422.

[0028] As shown in FIG. 3 , the fourth wood 14, the fifth wood 15, and the sixth wood 16 each have a groove formed therein that is spaced apart in the first direction X from the ninth groove 144 and the ninth groove group 1441 and has the same configuration as the ninth groove 144, forming a 9-2 groove group 1442 as a whole. The seventh wood 17, the eighth wood 18, and the ninth wood 19 each have a groove formed therein that is spaced apart in the first direction X from the tenth groove 172 and the tenth groove group 1721 and has the same configuration as the tenth groove 172, forming a 10-2 groove group 1722 as a whole. The ninth bonding material 29 is housed in the 9-2 groove group 1442 and the 10-2 groove group 1722. In the first direction X, the 7-2 groove group 1152 is located between the 9th groove portion 144 and the 9th groove group 1441 and the 9-2 groove group 1442, and the 8-2 groove group 1422 is located between the 10th groove portion 172 and the 10th groove group 1721 and the 10-2 groove group 1722.

[0029] The binding material 1 can exhibit the following effects.

[0030] The binding material 1 includes a plurality of wooden pieces 10 each extending in a first direction X and at least one joining material 20 joining the plurality of wooden pieces 10. The plurality of wooden pieces 10 includes a first wooden piece 11 and a second wooden piece 12 adjacent to the first wooden piece 11 in the second direction Y. The at least one joining material 20 includes a first joining material 21. The first wooden piece 11 has a first groove 112 provided on a first surface 111 of the first wooden piece 11 and extending along the first surface 111. The second wooden piece 12 has a second groove 122 provided on a second surface 121 of the second wooden piece 12 facing the first groove 112 and extending along the second surface 121. The first joining material 21 is accommodated across the first groove 112 and the second groove 122 to join the first wooden piece 11 and the second wooden piece 12. This configuration allows for a binding material 1 that can improve strength.

[0031] The first groove 112 and the second groove 122 each extend in the third direction Z. The first groove 112 penetrates the first wooden piece 11 in the third direction Z, and the second groove 122 penetrates the second wooden piece 12 in the third direction Z. This configuration makes it possible to realize a binding material 1 that can further improve strength.

[0032] The plurality of wooden pieces 10 includes a third wooden piece 13 adjacent to a second wooden piece 12 in the second direction Y and located on the opposite side of the second wooden piece 12 from the first wooden piece 11 in the second direction Y. At least one joining material 20 includes a second joining material 22. The second wooden piece 12 has a third groove 124 provided on a third surface 123 of the second wooden piece 12 and extending along the third surface 123. The third wooden piece 13 has a fourth groove 132 provided on a fourth surface 131 of the third wooden piece 13 facing the third groove 124 and extending along the fourth surface 131. The third groove 124 and the fourth groove 132 each extend in the third direction Z. A second joining material 22 is accommodated across the third groove 124 and the fourth groove 132 to join the second wooden piece 12 and the third wooden piece 13. The first bonding material 21 and the second bonding material 22 are located at different positions in the first direction X. With this configuration, it is possible to realize a binding material 1 that can further improve the strength.

[0033] At least one joining material 20 includes a third joining material 23. The first wooden piece 11 has a fifth groove 113 provided on the first surface 111, extending along the first surface 111, and spaced apart from the first groove 112 in the first direction X. The second wooden piece 12 has a sixth groove 125 provided on the second surface 121 facing the fifth groove 113 and extending along the second surface 121. The fifth groove 113 and the sixth groove 125 each extend in the third direction Z. The third joining material 23 is housed across the fifth groove 113 and the sixth groove 125 to join the first wooden piece 11 and the second wooden piece 12. The second joining material 22 is located between the first joining material 21 and the third joining material 23 in the first direction X. This configuration allows for a binding material 1 with improved strength.

[0034] The plurality of wooden pieces 10 are square pieces each measuring 45 mm to 450 mm square and 3,000 mm to 10,000 mm in the first direction X, and the dimension between the first bonding material 21 and the second bonding material 22 in the first direction X is 300 mm to 500 mm. This configuration makes it possible to realize a bundling material 1 that can further improve strength.

[0035] The plurality of wooden pieces 10 includes a fourth wooden piece 14 adjacent to the first wooden piece 11 in the third direction Z. At least one joining material 20 includes a fourth joining material 24. The first wooden piece 11 has a seventh groove 115 provided on a fifth surface 114 of the first wooden piece 11 and extending along the fifth surface 114. The fourth wooden piece 14 has an eighth groove 142 provided on a sixth surface 141 of the fourth wooden piece 14 opposite the seventh groove 115 and extending along the sixth surface 141. The seventh groove 115 and the eighth groove 142 each extend in the second direction Y. The fourth joining material 24 is accommodated across the seventh groove 115 and the eighth groove 142 to join the first wooden piece 11 and the fourth wooden piece 14. In the first direction X, the first joining material 21 and the fourth joining material 24 are located at different positions. With this configuration, it is possible to realize a binding material 1 that can further improve strength.

[0036] In the first direction X, the first bonding material 21 and the second bonding material 22 are located at different positions, and the fourth bonding material 24 is located between the first bonding material 21 and the second bonding material 22. With this configuration, it is possible to realize a binding material 1 that can further improve strength.

[0037] The plurality of wooden pieces 10 are square timbers each measuring 45 mm to 450 mm square and 3,000 mm to 10,000 mm in the first direction X. The distance between the first bonding material 21 and the fourth bonding material 24 in the first direction X is 150 mm to 250 mm, and the distance between the fourth bonding material 24 and the second bonding material 22 in the first direction X is 150 mm to 250 mm. This configuration allows for the realization of a bundling material 1 that can further improve strength.

[0038] The plurality of wooden pieces 10 are thinned cedar or cypress. With this configuration, the bundled material 1 can be made stronger.

[0039] At least one of the joining materials 20 is a piece of shredded cypress or zelkova. With this configuration, it is possible to realize a binding material 1 that can further improve the strength.

[0040] The binding material 1 can be configured as follows.

[0041] The wooden piece 10 is not limited to being a square timber measuring 45 mm to 450 mm square and 3000 mm to 10000 mm in the first direction X, but may have other shapes and dimensions. The wooden piece 10 is not limited to thinned cedar or cypress wood, but may be other types of wood or wood materials such as particle board, plywood, or laminated board.

[0042] The plurality of wooden pieces 10 may all be the same type of wooden piece, or may include a plurality of types of wooden pieces with different shapes or sizes.

[0043] The number of wooden pieces 10 constituting the binding material 1 may be plural. For example, the binding material 1 may be made up of two wooden pieces 10 or 49 wooden pieces.

[0044] An example of a binding material 1 made up of two pieces of wood is shown in Figure 4. In the binding material 1 shown in Figure 4, the first groove portion 112 and the second groove portion 122 each have a wall portion 1101, 1201 located at one end in the third direction Z, and do not penetrate the first wood piece 11 or the second wood piece 12 in the third direction Z. In other words, the groove portion of each piece of wood 10 may or may not be formed to penetrate the piece of wood 10.

[0045] An example of a bundled material 1 made up of four wooden pieces 10 is shown in Figure 5. In the bundled material 1 shown in Figure 5, the four joining materials 20 joining the four wooden pieces 10 extend in the first direction X (in other words, the end grain direction of the bundled material 1). In other words, the grooves of each wooden piece 10 are not limited to the second direction Y and the third direction Z, but may also extend in the first direction X.

[0046] The bonding material 20 is not limited to being shredded cypress or zelkova wood. For example, the bonding material 20 may have a shape other than shredded wood, or may be made of a type of wood other than cypress or zelkova wood or a material other than wood (e.g., metal, resin).

[0047] The number of joining materials 20 needs to be at least one, and is determined, for example, by the number and dimensions of the wooden pieces 10 that make up the binding material 1.

[0048] In addition to the joining material 20, adhesive may be used to join the wooden pieces 10 that make up the binding material 1.

[0049] Various aspects of the disclosure are described below.

[0050] A binding material of a first aspect of the present disclosure comprises: a plurality of wooden pieces each extending in a first direction; and at least one joining material joining the plurality of wooden pieces; wherein the plurality of wooden pieces includes a first wooden piece and a second wooden piece adjacent to the first wooden piece in a second direction intersecting the first direction; the at least one joining material includes a first joining material joining the first wooden piece and the second wooden piece; the first wooden piece is provided on a first surface of the first wooden piece facing the second wooden piece and has a first groove portion extending along the first surface; the second wooden piece is provided on a second surface of the second wooden piece facing the first wooden piece, facing the first groove portion, and has a second groove portion extending along the second surface; and the first joining material is accommodated across the first groove portion and the second groove portion to join the first wooden piece and the second wooden piece.

[0051] A second aspect of the binding material of the present disclosure is the binding material of the first aspect, wherein the first groove portion and the second groove portion each extend in a third direction that intersects with the second direction, the first groove portion penetrates the first wood in the third direction, and the second groove portion penetrates the second wood in the third direction.

[0052] A third aspect of the present disclosure relates to the bundling material of the second aspect, wherein the plurality of wood pieces includes a third wood piece adjacent to the second wood piece in the second direction and located on the opposite side of the first wood piece in the second direction relative to the second wood piece; the at least one joining material includes a second joining material that joins the second wood piece and the third wood piece; the second wood piece is provided on a third surface of the second wood piece facing the third wood piece and has a third groove portion extending along the third surface; the third wood piece is provided on a fourth surface of the third wood piece facing the second wood piece, facing the third groove portion and has a fourth groove portion extending along the fourth surface; the third groove portion and the fourth groove portion each extend in the third direction; the second joining material is accommodated across the third groove portion and the fourth groove portion to join the second wood piece and the third wood piece; and the first joining material and the second joining material are located at different positions in the first direction.

[0053] A fourth aspect of the present disclosure relates to the binding material of the third aspect, wherein the at least one joining material includes a third joining material that joins the first wood and the second wood, the first wood having a fifth groove portion that is provided on the first surface, extends along the first surface, and is spaced apart in the first direction from the first groove portion, the second wood having a sixth groove portion that is provided on the second surface opposite the fifth groove portion and extends along the second surface, the fifth groove portion and the sixth groove portion each extending in the third direction, the third joining material is accommodated across the fifth groove portion and the sixth groove portion to join the first wood and the second wood, and the second joining material is positioned between the first joining material and the third joining material in the first direction.

[0054] A fifth aspect of the present disclosure is a binding material of the third or fourth aspect, wherein the plurality of wooden pieces are square pieces each measuring 45 mm to 450 mm square and having a dimension in the first direction of 3000 mm to 10000 mm, and the dimension in the first direction between the first joining material and the second joining material is 300 mm to 500 mm.

[0055] A sixth aspect of the present disclosure is a binding material according to any one of the second to fifth aspects, wherein the plurality of wood pieces includes a fourth wood piece adjacent to the first wood piece in the third direction, the at least one joining material includes a fourth joining material joining the first wood piece and the fourth wood piece, the first wood piece having a seventh groove portion provided on a fifth surface of the first wood piece facing the fourth wood piece and extending along the fifth surface, the fourth wood piece having an eighth groove portion provided on a sixth surface of the fourth wood piece facing the first wood piece facing the seventh groove portion and extending along the sixth surface, the seventh groove portion and the eighth groove portion each extending in the second direction, the fourth joining material being accommodated across the seventh groove portion and the eighth groove portion to join the first wood piece and the fourth wood piece, and the first joining material and the fourth joining material being located at different positions in the first direction.

[0056] A seventh aspect of the present disclosure is a binding material according to the sixth aspect, wherein the plurality of wood pieces includes a third wood piece adjacent to the second wood piece in the second direction and located on the opposite side of the first wood piece in the second direction relative to the second wood piece; the at least one joining material includes a second joining material that joins the second wood piece and the third wood piece; the second wood piece is provided on a third surface of the second wood piece facing the third wood piece and has a third groove portion extending along the third surface; the third wood piece is provided on a fourth surface of the third wood piece facing the second wood piece, facing the third groove portion and has a fourth groove portion extending along the fourth surface; the third groove portion and the fourth groove portion each extend in the third direction; the second joining material is accommodated across the third groove portion and the fourth groove portion to join the second wood piece and the third wood piece; and in the first direction, the first joining material and the second joining material are located at different positions, and the fourth joining material is located between the first joining material and the second joining material.

[0057] The eighth aspect of the present disclosure is a binding material of the sixth or seventh aspect, wherein the plurality of wooden pieces are square pieces each measuring 45 mm to 450 mm square and having a dimension in the first direction of 3000 mm to 10000 mm, the dimension between the first joining material and the fourth joining material in the first direction is 150 mm to 250 mm, and the dimension between the fourth joining material and the second joining material in the first direction is 150 mm to 250 mm.

[0058] A ninth aspect of the present disclosure is the binding material of any one of the first to eighth aspects, wherein the plurality of wood pieces are thinned cedar or cypress wood.

[0059] A tenth aspect of the present disclosure is a binding material according to any one of the first to ninth aspects, wherein the at least one joining material is shredded cypress or zelkova.

[0060] Any of the various embodiments or modifications described above can be combined appropriately to achieve the effects of each. In addition, combinations of embodiments, combinations of examples, or combinations of embodiments and examples are possible, and combinations of features from different embodiments or examples are also possible.

[0061] Although the present disclosure has been described in each embodiment with a certain degree of detail, the disclosed contents of these embodiments may vary in structural details, and changes in the combination and order of elements in each embodiment may be made without departing from the scope and spirit of the claimed disclosure.

[0062] The binding material of the present disclosure can be used, for example, as a civil engineering or construction material.

[0063] 1 Binding material 10 Wood 1101 Wall portion 11 First wood 111 First surface 112 First groove portion 1121 First groove group 1122 First-second groove group 113 Fifth groove portion 1131 Fifth groove group 114 Fifth surface 115 Seventh groove portion 1151 Seventh groove group 1152 Seventh-second groove group 12 Second wood 1201 Wall portion 121 Second surface 122 Second groove portion 1221 Second groove group 1222 Second-second groove group 123 Third surface 124 Third groove portion 1241 Third groove group 1242 Third-second groove group 125 Sixth groove portion 1251 Sixth groove group 13 Third wood 131 Fourth surface 132 Fourth groove portion 1321 Fourth groove group 1322 4th-2nd groove group 14 4th wood 141 6th surface 142 8th groove 1421 8th groove group 1422 8-2 groove group 143 7th surface 144 9th groove 1441 9th groove group 1442 9-2 groove group 15 5th wood 16 6th wood 17 7th wood 171 8th surface 172 10th groove 1721 10th groove group 1722 10-2 groove group 18 8th wood 19 9th wood 20 Bonding material 21 1st bonding material 22 2nd bonding material 23 3rd bonding material 24 4th bonding material 25 5th bonding material 26 6th bonding material 27 7th bonding material 28 8th bonding material 29 9th bonding material

Claims

1. A bundling material comprising: a plurality of wooden pieces each extending in a first direction; and at least one joining material joining the plurality of wooden pieces; wherein the plurality of wooden pieces include a first wooden piece and a second wooden piece adjacent to the first wooden piece in a second direction intersecting the first direction; the at least one joining material including a first joining material joining the first wooden piece and the second wooden piece; the first wooden piece having a first groove portion provided on a first surface of the first wooden piece facing the second wooden piece and extending along the first surface; the second wooden piece having a second groove portion provided on a second surface of the second wooden piece facing the first wooden piece and extending along the second surface; the first joining material being accommodated across the first groove portion and the second groove portion, joining the first wooden piece and the second wooden piece.

2. The binding material according to claim 1, wherein the first groove portion and the second groove portion each extend in a third direction intersecting the second direction, the first groove portion penetrates the first wooden piece in the third direction, and the second groove portion penetrates the second wooden piece in the third direction.

3. The bundling material of claim 2, wherein the plurality of wooden pieces includes a third wooden piece adjacent to the second wooden piece in the second direction and located on the opposite side of the second wooden piece from the first wooden piece in the second direction; the at least one joining material includes a second joining material joining the second wooden piece and the third wooden piece; the second wooden piece is provided on a third surface of the second wooden piece facing the third wooden piece and has a third groove portion extending along the third surface; the third wooden piece is provided on a fourth surface of the third wooden piece facing the second wooden piece, facing the third groove portion and having a fourth groove portion extending along the fourth surface; the third groove portion and the fourth groove portion each extend in the third direction; the second joining material is accommodated across the third groove portion and the fourth groove portion to join the second wooden piece and the third wooden piece; and the first joining material and the second joining material are located at different positions in the first direction.

4. The bundling material described in claim 3, wherein the at least one joining material includes a third joining material joining the first wood and the second wood, the first wood being provided on the first surface and having a fifth groove portion extending along the first surface and spaced apart from the first groove portion in the first direction, the second wood being provided on the second surface opposite the fifth groove portion and having a sixth groove portion extending along the second surface, the fifth groove portion and the sixth groove portion each extending in the third direction, the third joining material being accommodated across the fifth groove portion and the sixth groove portion to join the first wood and the second wood, and the second joining material being located between the first joining material and the third joining material in the first direction.

5. The bundling material according to claim 3 or 4, wherein the plurality of wooden pieces are square timbers each measuring 45 mm to 450 mm square and having a dimension in the first direction of 3000 mm to 10000 mm, and the dimension in the first direction between the first joining material and the second joining material is 300 mm to 500 mm.

6. The bundling material according to any one of claims 2 to 5, wherein the plurality of wooden pieces includes a fourth wooden piece adjacent to the first wooden piece in the third direction, the at least one joining material includes a fourth joining material joining the first wooden piece and the fourth wooden piece, the first wooden piece having a seventh groove provided on a fifth surface of the first wooden piece facing the fourth wooden piece and extending along the fifth surface, the fourth wooden piece having an eighth groove provided on a sixth surface of the fourth wooden piece facing the first wooden piece, facing the seventh groove and extending along the sixth surface, the seventh groove and the eighth groove each extending in the second direction, the fourth joining material is accommodated across the seventh groove and the eighth groove to join the first wooden piece and the fourth wooden piece, and the first joining material and the fourth joining material are located at different positions in the first direction.

7. The bundling material of claim 6, wherein the plurality of wooden pieces includes a third wooden piece adjacent to the second wooden piece in the second direction and located on the opposite side of the second wooden piece from the first wooden piece in the second direction; the at least one joining material includes a second joining material joining the second wooden piece and the third wooden piece; the second wooden piece is provided on a third surface of the second wooden piece facing the third wooden piece and has a third groove portion extending along the third surface; the third wooden piece is provided on a fourth surface of the third wooden piece facing the second wooden piece, facing the third groove portion and having a fourth groove portion extending along the fourth surface; the third groove portion and the fourth groove portion each extend in the third direction; the second joining material is accommodated across the third groove portion and the fourth groove portion to join the second wooden piece and the third wooden piece; and the first joining material and the second joining material are located in different positions in the first direction, and the fourth joining material is located between the first joining material and the second joining material.

8. The bundling material according to claim 6 or 7, wherein the plurality of wooden pieces are square timbers each 45 mm to 450 mm square and having a dimension in the first direction of 3000 mm to 10000 mm, the dimension in the first direction between the first joining material and the fourth joining material is 150 mm to 250 mm, and the dimension in the first direction between the fourth joining material and the second joining material is 150 mm to 250 mm.

9. The binding material according to any one of claims 1 to 8, wherein the plurality of pieces of wood are thinned cedar or cypress.

10. A binding material according to any one of claims 1 to 9, wherein said at least one binding material is a shredded piece of Japanese cypress or Japanese zelkova.

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