Joint for Structural Materials

Abstract

To provide a joint for joining structural materials that can accommodate multiple types of structural materials.SOLUTION: A joint for joining structural materials comprises a joint body 7, a core attachment body 13 provided in the joint body 7, and a core removably attached to the core attachment body 13. In the joint, multiple types of cores are provided, any core can be selected and attached to the core attachment body 13, thus, any structural material can be attached through the core, therefore, the joint can easily accommodate to the multiple types of structural material.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a joint for joining structural materials, and particularly to a joint devised to be able to easily accommodate a plurality of types of structural materials.

Background Art

[0002] As an example disclosing the configuration of a joint for joining structural materials, there is Patent Document 1. The joint for joining structural materials disclosed herein includes a joint body for joining structural materials, and a lower vertical structural material engaging portion is provided in the joint body for joining structural materials, and a horizontal structural material engaging portion is attached thereto. The lower vertical structural material is connected to the lower vertical structural material engaging portion, and the horizontal structural material is connected to the horizontal structural material engaging portion. Note that Patent Document 1 is by the applicant of the present patent application.

[0003] In addition, there are also connectors as shown in Patent Document 2, for example.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The above configuration had the following problems. That is, there are various types of structural materials, and the end face shapes thereof are different for each structural material. On the other hand, in the case of the joint for joining structural materials described in Patent Document 1, since the lower vertical structural material engaging portion is integrally provided in the joint body for joining structural materials, the types of structural materials to be joined thereto are limited by the shape of the lower vertical structural material engaging portion. The same problem also exists for structural members joined via the engaging portion for horizontal structural members, where the types of structural members to be joined there are limited by the shape of the engaging portion for horizontal structural members. Of course, since the engaging portion for horizontal structural members is detachably provided on the joint body for joining structural members, it is conceivable to prepare another type of engaging portion for horizontal structural members. However, the engaging portion for horizontal structural members is relatively large, and there are problems in terms of parts management, replacement work being complicated, and cost. This is the same for the connector described in Patent Document 2.

[0006] The present invention has been made based on such points, and an object thereof is to provide a joint for joining structural members that can easily cope with a plurality of types of structural members.

Means for Solving the Problems

[0007] To achieve the above object, the joint for joining structural members according to claim 1 of the present invention includes a joint body, a core attachment body attached to the joint body, and a core detachably attached to the core attachment body. A plurality of types of cores are prepared, and by selecting an arbitrary core and attaching it to the core attachment body, the core is used to attach the structural member. Projected It is characterized in that. Conforming to It is characterized in that. , the joint body is composed of a pair of joint body elements, and by arbitrarily selecting the joint body elements, the number and position of the core mounting bodies can be selected. The pair of joint body elements are formed in a substantially triangular prism shape by dividing a substantially cube into two along a diagonal plane It is characterized by that. Further, the joint for joining structural members according to claim 2 is the joint for joining structural members according to claim 1, The pair of joint body elements are combined and fixed by screwing bolts from the diagonal direction It is characterized by that. Further, the joint for joining structural members according to claim 3 is Claim 1 or the joint for joining structural members according to claim 2, A cap is attached so as to close the mating surface where the pair of joint body elements are joined It is characterized by that. Further, the joint for joining structural members according to claim 4 is the joint for joining structural members according to claim 3, A pin for coupling another structural material is projected on the cap It is characterized by that. Further, the joint for joining structural members according to claim 5 is the joint for joining structural members according to claim 1In the joint for structural members described above, An engaging portion is provided on the core mounting body, and an engaging portion that engages with the engaging portion is provided on the core it is characterized by the following.

Advantages of the Invention

[0008] As described above, according to the joint for structural members according to claim 1 of the present invention, it includes a joint body, a core attachment provided on the joint body, and a core detachably attached to the core attachment. A plurality of types of cores are prepared, and by selecting an arbitrary core and attaching it to the core attachment, an arbitrary structural member can be attached via the core. Therefore, it is possible to easily cope with a plurality of types of structural members. Also, according to the joint for structural members according to claim 2, in the joint for structural members according to claim 1, the joint body is composed of a pair of joint body elements, and by arbitrarily selecting the joint body elements, the number and position of the core attachments can be selected. Therefore, it is possible to easily cope with a plurality of types of structural members. Also, according to the joint for structural members according to claim 3, in the joint for structural members according to claim 2, the pair of joint body elements has a shape obtained by dividing a substantially cube into two substantially triangular prisms with a diagonal plane as a boundary. Therefore, it is easy to disassemble and assemble the joint body. Also, according to the joint for structural members according to claim 4, in the joint for structural members according to claim 3, the pair of joint body elements are combined and fixed by screwing bolts from the diagonal direction. Therefore, the rigidity during assembly can be increased. Also, according to the joint for structural members according to claim 5, in the joint for structural members according to any one of claims 2 to 4, a cap is attached so as to close the mating surface where the pair of joint body elements are joined. Therefore, the rigidity can be further increased. Furthermore, according to the structural member joining joint according to claim 6, in the structural member joining joint according to claim 5, since a pin for joining another structural member protrudes from the cap, another type of structural member can be joined using the pin. Furthermore, according to the structural member joining joint according to claim 7, in the structural member joining joint according to claim 1, since an engaging portion is provided on the core attachment body and an engaging portion that engages with the engaging portion is provided on the core, the core can be firmly attached.

Brief Description of the Drawings

[0009]

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Embodiments for Carrying Out the Invention

[0010] Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 7. In the case of this first embodiment, for example, the case of joining two types / three structural members 3, 3, and 5 via the structural member joining joint 1 will be described as an example. As shown in FIG. 2, the structural member joint 1 includes a joint body 7. As shown in FIG. 3, this joint body 7 is composed of two joint body elements 9 and 11.

[0011] The joint body element 9 has a shape like a substantially triangular prism obtained by dividing a hollow substantially cube in half with a diagonal plane, and includes end walls 9a, 9b and side walls 9c. A core attachment body 13 projects from the outer surface of the end wall 9b. Engagement recesses 15, 15 are provided in the core attachment body 13. Further, a transverse wall 17 is provided inside the joint body element 9, and a longitudinal wall 19 is continuously provided at the tip of this transverse wall 17 in a state of being bent by 90°. A female screw portion 21 is provided on the longitudinal wall 19. Further, a female screw portion 23 is provided on the core attachment body 13.

[0012] The joint body element 11 also has substantially the same shape as the joint body element 9, and includes end walls 11a and side walls 11c. Core attachment bodies 13, 13 project from the outer surface of the side wall 11c, respectively. These core attachment bodies 13, 13 have the same configuration as the core attachment body 13, and the same reference numerals are given to the same parts in the figure and the description thereof is omitted. Further, a transverse wall 25 is provided inside the joint body element 11. A female screw portion 27 is provided at the corner of the side wall 11c of the joint body element 11.

[0013] By combining the joint body element 9 and the joint body element 11 and screwing a separately prepared bolt 29 into the female screw portion 27 and the female screw portion 21, the joint body element 9 and the joint body element 11 are integrated into the joint body 7.

[0014] Female screw portions 31 and 31 are provided on the end wall 9a of the joint body element 9. Also, female screw portions 33 and 33 are provided on the end wall 11a of the joint body element 11. Further, a cap 41 is provided, and four through holes 43, 43, 43, and 43 are drilled in this cap 41. By screwing four separately prepared bolts 45, 45, 45, and 45 through the through holes 43, 43, 43, and 43 into the female screw portions 31, 31, 33, and 33, the cap 41 is fixed to the joint body 7. The joint body element 9 and the joint body element 11 are integrated by a bolt 29, but are further firmly fixed by the cap 41.

[0015] As shown in FIG. 4, among the three core mounting bodies 13, 13, and 13, cores 51 and 51 are attached to two of the core mounting bodies 13 and 13, and another type of core 53 is attached to the remaining one core mounting body 13. The core 51 is for the structural material 3, and the core 53 is for the structural material 5. Through holes 55, 55, and 55 are formed in each of the cores 51, 51, and 53. The cores 51, 51, and 53 are attached to the core mounting bodies 13, 13, and 13 by screwing bolts 57 through the through holes 55 into the female screw portion 23.

[0016] Also, engaging convex portions 59 and 59 project inside the core 51, and these engaging convex portions 59 and 59 are engaged with the engaging concave portions 15 and 15 of the core mounting body 13. As a result, the core 51 is firmly fixed to the core mounting body 13 without displacement. Engaging convex portions 59 and 59 also project inside the core 53, and these engaging convex portions 59 and 59 are engaged with the engaging concave portions 15 and 15 of the core mounting body 13. As a result, the core 53 is firmly fixed to the core mounting body 13 without displacement. Also, female screw portions 60, 60, 60, and 60 for use when fixing the structural materials 3 and 5 are provided on the cores 51 and 53.

[0017] As shown in Fig. 7(d), the transverse wall 25 of the joint body element 11 is inserted between the end wall 9a and the transverse wall 17 of the joint body element 9, and the end wall 9a, the transverse wall 17 of the joint body element 9, and the transverse wall 25 of the joint body element 11 are configured to engage with each other. Thereby, the rigidity of the joint body 7 and thus the structural member connecting joint 1 is increased, for example, to resist the force in the direction indicated by the arrow in Fig. 9(d).

[0018] Also, the screwing direction of the bolt 29 with the female screw portion 27 and the female screw portion 21 is diagonal and in the direction along the direction in which the joint body element 9 comes off the joint body element 11. That is, it receives the withdrawal load in the axial direction of the bolt 29, thereby increasing the bonding strength. Also, by providing the cap 41, the mechanical strength of the entire structural member connecting joint 1 is increased.

[0019] Incidentally, as shown in Fig. 1, the structural member 3 is hollow and has a substantially square end face shape. A hollow portion 63 is formed inside the structural member body 61, and recesses 65, 65, 65, 65 are formed at the four corners of the structural member body 61 in communication with the hollow portion 63. Further, through holes 67, 67 for fixing to the cores 51, 55 already described are drilled in the structural member body 61. The structural member 3 is fixed to the core 51 by screwing bolts 68, 68 through the through holes 67, 67 into the female screw portions 60, 60 of the core 51. Also, as shown in Fig. 8, the structural member 5 is hollow and has an octagonal end face shape. A hollow portion 73 is formed inside the structural member body 71, and recesses 75 are formed at the four corners of the structural member body 71. Further, through holes 77, 77 for fixing to the cores 51, 55 already described are drilled in the structural member body 71. The structural member 5 is fixed to the core 53 by screwing bolts 78, 78 through the through holes 77, 77 into the female screw portions 60, 60 of the core 53. Incidentally, Fig. 8 is a view showing a second embodiment described later, and is referred to for explaining the end face shape of the structural member 5.

[0020] According to the above-described embodiment, the following effects can be achieved. First, it can be easily adapted and coupled to two types / three structural members 3, 3, 5. Moreover, the combination of the structural members 3, 5 to be coupled is not limited to the two types / three structural members 3, 3, 5. By appropriately selecting the cores 51, 53 to be attached to the three core attachment bodies 13, 13, 13, the structural members 3, 5 to be attached thereto can be arbitrarily selected. At that time, it is not necessary to change the configuration of the joint body 7. In addition, the lateral wall 25 of the joint body element 11 is inserted between the end wall 9a and the lateral wall 17 of the joint body element 9, and the end wall 9a and the lateral wall 17 of the joint body element 9 and the lateral wall 25 of the joint body element 11 are configured to receive each other. Therefore, the rigidity of the joint body 7 and thus the joint 1 for connecting structural members can be increased. Furthermore, by providing the cap 41, the rigidity of the joint 1 for connecting structural members can be further increased. In addition, the screwing direction by the bolt 29 and the female screw portions 27, 21 is diagonal and in the direction in which the joint body element 11 comes off from the joint body element 9, and the bolt 29 receives the pull-out load in the axial direction thereof. Thereby, it can effectively counter the pull-out load.

[0021] Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 12. In the case of the first embodiment, the case of connecting, for example, two types / three structural members 3, 3, 5 via the joint 1 for connecting structural members was described as an example. However, in the case of this second embodiment, for example, the case of connecting three types / four structural members 3, 5, 5, 81 will be described as an example.

[0022] The configuration of the portion where the structural members 3, 5 are connected is the same as that in the case of the first embodiment, and the same reference numerals are given to the same portions and the description thereof is omitted. The above structural member 81 includes a structural member main body 83, and a hollow portion 85 is formed in the central portion of the structural member main body 83. Hollow portions 87, 87, 87, 87 are respectively formed at the four corners of the structural member main body 83. T-grooves 89, 89, 89, 89 are respectively formed on the four sides of the structural member main body 83. As also shown in FIG. 12, among the four T-grooves 89, enlarged diameter portions 89a, 89a are formed in a pair of opposing T-grooves 89, 89. Further, the hollow portion 85 on the line connecting the enlarged diameter portions 89a, 89a is penetrated in the lateral direction and a through hole 89b is drilled.

[0023] As shown in FIG. 9, in the case of this embodiment, another cap 91 is used instead of the cap 41 used in the first embodiment. Four through holes 93, 93, 93, 93 are drilled in this cap 91, and bolts 45, 45, 45, 45 described also in the first embodiment are screwed into female screw portions 31, 31, 31, 31 through the through holes 93, 93, 93, 93 to fix the cap 91 to the joint body 7.

[0024] A pin 95 projects from the central portion of the cap 91. Further, as shown in FIGS. 11 and 12, a holder 97 is prepared, and this holder 97 is inserted and disposed in the through hole 89b in the hollow portion 85 of the structural member 81 via the enlarged diameter portion 89a. A through hole 97a is drilled in the holder 97. By installing the structural member 81 on the cap 91, the pin 95 is inserted into the through hole 97a of the holder 97. A female screw portion 97b is provided along the axial direction in the holder 97, and by screwing a set screw 99 into the female screw portion 97b, the tip thereof is pressed against the side surface of the pin 95, whereby the pin 95 is fixed to the holder 97 and the structural member 81 is fixed to the cap 91.

[0025] In addition, other configurations are the same as those in the case of the first embodiment, and the same reference numerals are given to the same parts in the drawings and the description thereof is omitted.

[0026] According to the above configuration, the same effects as those in the case of the first embodiment can be achieved, and by using the cap 91, it is possible to further accommodate another type of structural material 81. Also, the combination of the structural materials 3 and 5 to be joined is not limited to the two types / three structural materials 3, 5, and 5. By appropriately selecting the cores 51 and 53 attached to the core attachments 13, 13, and 13, the structural materials 3 and 5 to be attached thereto can be arbitrarily selected. At that time, the configuration of the joint body 7 is the same.

[0027] Next, a third embodiment of the present invention will be described with reference to FIGS. 13 and 14. In the case of the first embodiment, the case of joining, for example, two types / three structural materials 3, 3, and 5 via the structural material joining joint 1 was described as an example. However, in the case of this third embodiment, the case of joining, for example, two types / two structural materials 3 and 5 will be described as an example.

[0028] In this case, one core attachment 13 protrudes from the joint body element 9 of the joint body 7, and one core attachment 13 protrudes from the joint body element 11. Cores 51 and 53 are attached to these two core attachments 13, 13, one by one. Other configurations are the same as those in the case of the first embodiment, and the same reference numerals are given to the same parts in the drawings and their description is omitted.

[0029] Therefore, the same effects as those in the cases of the first and second embodiments can be achieved. Also, the combination of the structural materials 3 and 5 to be joined is not limited to the two types / two structural materials 3 and 5. By appropriately selecting the cores 51 and 53 attached to the core attachments 13, 13, the structural materials 3 and 5 to be attached thereto can be arbitrarily selected. At that time, the configuration of the joint body 7 is the same.

[0030] Next, a fourth embodiment of the present invention will be described with reference to FIGS. 15 and 16. In the case of the third embodiment, the case of joining, for example, two types / two structural members 3 and 5 via the structural member joining joint 1 was described as an example. However, in the case of this fourth embodiment, the case of joining, for example, three types / three structural members 3, 5, and 81 will be described as an example.

[0031] The configuration of the portion for joining the structural member 81 is the same as that in the case of the second embodiment, and the other configurations are the same as those in the case of the third embodiment. The same reference numerals are given to the same parts in the drawings and the description thereof is omitted.

[0032] Therefore, the same effects as those in the cases of the first to third embodiments can be achieved. Moreover, the combination of the structural members 3 and 5 to be joined is not limited to two types / two structural members 3 and 5. By appropriately selecting the cores 51 and 53 attached to the core attachments 13 and 13, the structural members 3 and 5 attached thereto can be arbitrarily selected. At that time, the configuration of the joint body 7 is the same.

[0033] Next, a fifth embodiment of the present invention will be described with reference to FIGS. 17 and 18. In the case of the first embodiment, the case of joining, for example, three types / three structural members 3, 5, and 5 via the structural member joining joint 1 was described as an example. However, in the case of this fourth embodiment, the case of joining two types / four structural members 3, 3, 5, and 5 will be described as an example.

[0034] In this case, as shown in FIG. 17, two core attachments 13 and 13 project from the joint body element 9 of the joint body 7, and two core attachments 13 and 13 also project from the joint body element 11. Two cores 51 and 53 are attached to each of these four core attachments 13, 13, 13, and 13 to connect two types / four structural members 3, 3, 5, and 5. Other configurations are the same as those in the first embodiment, and the same reference numerals are given to the same parts in the drawings and their descriptions are omitted.

[0035] Therefore, the same effects as those in the first to fourth embodiments can be achieved. Also, the combination of the structural members 3 and 5 to be joined is not limited to two types / four structural members 3, 3, 5, 5. By appropriately selecting the cores 51 and 53 attached to the core attachments 13, 13, 13, 13, the structural members 3 and 5 attached thereto can be arbitrarily selected. At that time, the configuration of the joint body 7 is the same.

[0036] Next, a sixth embodiment of the present invention will be described with reference to FIGS. 19 and 20. In the case of the fifth embodiment, the case of joining, for example, two types / four structural members 3, 3, 5, 5 via the structural member joining joint 1 was described as an example. In the case of this sixth embodiment, the case of joining three types / five structural members 3, 3, 5, 5, 81 will be described as an example.

[0037] In this case, a cap 91 is used instead of the cap 41. The configuration when the cap 91 is used is as described in the second embodiment, and other configurations are the same as those in the fifth embodiment. The same reference numerals are given to the same parts in the drawings and their descriptions are omitted.

[0038] Therefore, the same effects as those in the first to fifth embodiments can be achieved. Also, the combination of the structural members 3 and 5 to be joined is not limited to two types / four structural members 3, 3, 5, 5. By appropriately selecting the cores 51 and 53 attached to the core attachments 13, 13, 13, 13, the structural members 3 and 5 attached thereto can be arbitrarily selected. At that time, the configuration of the joint body 7 is the same.

[0039] Note that the present invention is not limited to the first to sixth embodiments. First, in the case of the first to sixth embodiments, a columnar structural member was described as an example, but the present invention is not limited thereto and is applicable to various types of structural members. Also, in the case of the first to sixth embodiments, the case where the joint body is composed of a pair of joint body elements was described as an example, but it is also conceivable to configure it from three or more joint body elements. In addition, the illustrated configuration is merely an example, and various modifications are conceivable.

Industrial Applicability

[0040] The present invention relates to a joint for joining structural members, and particularly to a device that is devised to easily cope with a plurality of types of structural members. For example, it is suitable for assembling various structures in a factory.

Explanation of Reference Numerals

[0041] 1 Joint for joining structural members 3 Structural member 5 Structural member 7 Joint body 9 Joint body element 11 Joint body element 13 Core attachment 15 Engaging recess (engaging portion) 27 Female screw portion 29 Bolt 41 Cap 51 Core 53 Core 59 Engaging projection (engaging portion) 91 Cap

Claims

1. A joint body, a core attachment body protruding from the joint body, a core detachably attached to the core attachment body, characterized in that a plurality of types of cores are prepared, and by selecting an arbitrary core and attaching it to the core attachment body, a structural material adapted to the core is attached, the joint body is composed of a pair of joint body elements, by arbitrarily selecting the joint body elements, the number and position of the core attachment bodies are selected, the pair of joint body elements are each formed in a shape of a substantially triangular prism by bisecting a substantially cube along a diagonal plane, and is a joint for structural material connection.

2. The joint for structural material connection according to Claim 1, characterized in that the pair of joint body elements are combined and fixed by screwing bolts from the diagonal direction.

3. The joint for structural material connection according to Claim 1 or Claim 2, characterized in that a cap is attached so as to close the mating surface where the pair of joint body elements are joined.

4. The joint for structural material connection according to Claim 3, characterized in that a pin for joining another structural material is protruding from the cap.

5. The joint for structural material connection according to Claim 1, characterized in that an engaging portion is provided on the core attachment body, and an engaging portion engaging with the engaging portion is provided on the core.

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