Connection unit constituting node of frame structure of architecture, architecture assembly set provided with the connection unit, and assembly method of architecture using the connection unit

Abstract

To provide a connection unit capable of easily connecting edges of a frame structure of an architecture, an architecture assembly set provided with the connection unit, and an assembly method of the architecture using the connection unit.SOLUTION: Provided is a connection unit constituting a node of a frame structure of an architecture comprising: node members having a plurality of connected parts in which connection directions are edge directions of the frame structure; link members detachably connected to each of the plurality of connected parts; and a lock mechanism, in a manually switchable state, including a lock state holding connection between the connected part and the link member and an unlock state allowing the link member to be detached from the connected part. Also provided are an architecture assembly set comprising the connection unit, and an assembly method of the architecture using the connection unit.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a connection unit that constitutes a node of a frame structure of a building, a building assembly set including the connection unit, and a method for assembling a building using the connection unit. [Background technology]

[0002] As a joining structure for constructing a polyhedral structure, Patent Document 1 discloses a joining structure in which the protrusions of a V-shaped joining part are inserted one end at a time into the hollow part of a frame, and the frame and the protrusions are fastened and fixed with a fixing means (bolt). Also, Figure 11 of Patent Document 1 lists joining structures for frames that use a spherical joining part, a joining structure that uses a human-shaped joining part, and a joining structure that uses a dish-shaped plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-27601 Summary of the Invention [Problem to be solved by the invention]

[0004] The joining structure of Patent Document 1, the joining structure using a hand-type joining component, and the joining structure using a dish-shaped plate require the frame and the joining component to be fixed using a tool with fixing means such as bolts or screws. The joining structure using a spherical joining component requires the frame, which has a male thread structure at its end that corresponds to the bolt hole, to be screwed into the bolt hole provided in the spherical joining component. Therefore, the joining work between the frame and the joining component in these joining structures is complicated.

[0005] The present invention aims to provide a connection unit that can easily connect the sides of a building's frame structure, a building assembly set that includes the connection unit, and a method for assembling a building using the connection unit. [Means for solving the problem]

[0006] The present invention provides a connecting unit that forms a node of a frame structure of a building, the connecting unit comprising: a node member having a plurality of connectable parts whose connecting direction is along the side direction of the frame structure; link members that are detachably connected to each of the connectable parts; and a locking mechanism that can be manually switched between a locked state that maintains the connection between the connectable parts and the link members and an unlocked state that allows the connecting parts to be detached from the connectable parts; a building assembly set that includes the connecting unit; and a method for assembling a building using the connecting unit. [Effects of the Invention]

[0007] The connecting unit of the present invention can easily connect the sides of a frame structure of a building. Also, the building assembly set of the present invention includes the connecting unit of the present invention, so that the sides of the frame structure can be easily connected. Furthermore, the building assembling method of the present invention uses the connecting unit of the present invention, so that the frame structure of a building can be easily assembled. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of a building assembled using linking units according to one embodiment of the present invention; FIG. [Figure 2] 1 is a schematic diagram of a connection unit according to one embodiment of the present invention; [Figure 3] 2 is a schematic diagram of a building assembly set for assembling the building shown in FIG. 1. [Figure 4] FIG. 1 is a perspective view of a connecting unit according to an embodiment of the present invention. [Figure 5]FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. 4 is an explanatory diagram showing the steps for assembling a building using the building assembly set shown in FIG. 3. [Figure 10] FIG. 10 is an explanatory diagram showing the relationship between the link member and the shoulder member in an unlocked state. [Figure 11] 10 is an explanatory diagram showing the relationship between the link member and the shoulder member in a locked state. FIG. [Figure 12] 10 is a schematic diagram of a regular tetrahedron building assembled using connecting units according to another embodiment of the present invention. FIG. [Figure 13] FIG. 10 is a schematic diagram of an icosahedral building assembled using connecting units according to another embodiment of the present invention. [Figure 14] 10 is a schematic diagram of a dodecahedron building assembled using connecting units according to another embodiment of the present invention. [Figure 15] FIG. 10 is a perspective view of a connecting unit according to another embodiment of the present invention. [Figure 16] 16 is an explanatory diagram showing the steps for assembling a building using a building assembly set having the connecting unit shown in FIG. 15. FIG. [Figure 17] 16 is an explanatory view showing the relationship between the link member and the shoulder member in the connecting unit shown in FIG. 15 in an unlocked state. FIG. [Figure 18] 16 is an explanatory view showing the relationship between the link member and the shoulder member in the connecting unit shown in FIG. 15 in a locked state before the rotation of the pin portion is restricted by the latch member. FIG. [Figure 19] 16 is an explanatory view showing the relationship between the link member and the shoulder member in a locked state after the rotation of the pin portion is restricted by the latch member in the connecting unit shown in FIG. 15. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, the present invention will be described in detail based on preferred embodiments, with appropriate reference to the drawings.

[0010] (1) One embodiment of the present invention is a connection unit that constitutes a node of a frame structure of a building, a node member having a plurality of connected portions whose connecting direction is in the side direction of the frame structure; a link member detachably connected to each of the plurality of connected portions; This is a connecting unit that includes a locking mechanism that can be manually switched between a locked state that maintains the connection between the connected portion and the link member, and an unlocked state that allows the connecting portion to be separated from the connected portion.

[0011] According to the connecting unit of (1) above, the sides of the frame structure of a building can be easily connected.

[0012] (2) In the connecting unit described in (1) above, the locking mechanism is a pin portion that rotates around a direction perpendicular to the connecting direction; a control unit for controlling a rotation angle of the pin unit; and The switching to the locked state is performed by causing the control unit to set the rotation angle of the pin unit to a first angle, The switching to the unlocked state is performed by causing the control unit to set the rotation angle of the pin portion to a second angle.

[0013] (3) In the connection unit described in (2) above, the link member includes the lock mechanism, The connected portion is an insertion hole into which the pin portion at the second angle can be inserted and removed; a protrusion that locks the pin portion inserted into the insertion hole at the first angle within the insertion hole; It has.

[0014] According to the connecting units of (2) and (3) above, the structure of the locking mechanism is simplified, which reduces the production cost of the connecting unit. Furthermore, according to the connecting unit of (3) above, the link member includes the locking mechanism, which makes it easy to replace the locking mechanism if it malfunctions.

[0015] (4) In the connecting unit described in (3) above, the control unit is a lever portion that rotates so that its tip faces the inside of the building in the locked state and so that its tip faces the outside of the building in the unlocked state.

[0016] According to the connecting unit of (4) above, the locked state and the unlocked state can be easily switched by manually operating the lever portion. Furthermore, according to the connecting unit of (4) above, it is easy to check whether the lever portion is in the unlocked state. This reduces the chance of forgetting to lock the locking mechanism. Therefore, the safety of buildings assembled using connecting units is improved.

[0017] (5) In the connecting unit described in (4) above, the link member has a first lever stopper for restricting movement of the lever portion whose tip is directed toward the interior of the building.

[0018] According to the connecting unit of (5) above, the lever portion can be easily manually placed in an appropriate position for the locked state.

[0019] (6) In the connecting unit described in (4) or (5) above, the link member has a second lever stopper for restricting movement of the lever portion whose tip is directed toward the outside of the building.

[0020] According to the connecting unit of (6) above, the lever portion can be easily manually placed in the appropriate position for the unlocked state.

[0021] (7) In the connecting unit described in (3) above, the control section is a knob section provided on at least one end of both ends of the pin section.

[0022] According to the connection unit of (7) above, the lock state and the unlock state can be easily switched by manually operating the knob portion.

[0023] (8) In the connecting unit described in (7) above, a lock indicator that indicates the position of the knob in the locked state; an unlock indicator that indicates the position of the knob in the unlocked state; It has.

[0024] According to the connection unit of (8) above, the knob portion can be easily switched manually between the appropriate positions for the locked state and the unlocked state.

[0025] (9) In the connecting unit according to any one of (3) to (8), The link member has a bar hole for passing a bar member therethrough, The pin portion has a recess into which the end of the latch member that has passed through the latch hole is fitted at the first angle.

[0026] According to the connecting unit of (9) above, the latch member can suppress rotation of the pin portion in the locked state, thereby improving the safety of buildings assembled using the connecting units.

[0027] (10) In the connecting unit described in (9) above, the bar member and the bar hole have a male-female thread relationship.

[0028] According to the connecting unit of (10) above, the latch member can be fastened to the latch hole by a screw structure, so that rotation of the pin portion in the locked state can be more reliably suppressed, thereby further improving the safety of buildings assembled using the connecting unit.

[0029] (11) In the connection unit described in any one of (3) to (10) above, the pin portion has a groove for avoiding contact between the pin portion and the protrusion when inserting or removing the pin portion at the second angle into or from the insertion hole.

[0030] According to the connecting unit of (11) above, the processing of the pin portion is simplified, and therefore the production cost of the connecting unit is reduced.

[0031] (12) In the connection unit according to any one of (3) to (11), the frame constituting the side of the frame structure is a square timber frame, The beam frame is fixed to the link member.

[0032] In the joining structure using the spherical joining component described above, the frame and the joining component can be joined by manually screwing a frame, which has a male thread structure at its end that corresponds to the bolt hole, into a bolt hole provided in the joining component. However, when joining a timber frame with the joining component, the surfaces of the timber frame do not align after the screwing, making the work of aligning the surfaces of the timber frame cumbersome.

[0033] According to the connecting unit of (12) above, the link member to which the timber frames are fixed can be inserted into the connected portion of the node member to connect the timber frames. In other words, when connecting the timber frames, the connecting unit of (12) above does not require the timber frames to be screwed into the connected portion, as is the case with the spherical connecting part described above. Therefore, the connecting unit of (12) above does not require the work of aligning the surfaces of the timber frames.

[0034] (13) In the connecting unit according to any one of (3) to (12), The link member is a holding member for holding a frame that constitutes a side of the frame structure; a positioning member for regulating the position of the square timber frame so that the frame does not come into contact with the pin portion; It has.

[0035] According to the connecting unit of (13) above, the frame can be held in the proper position of the link member, thereby preventing malfunction of the control unit caused by contact of the frame with the pin portion.

[0036] (14) In the connecting unit for square timber frames described in (13) above, the holding member has a frame stopper for restricting the position of the frame so that the frame does not come into contact with the pin portion.

[0037] According to the connecting unit of (14), the frame can be held in a more appropriate position on the link member, thereby further suppressing malfunctions of the control unit caused by the frame coming into contact with the pin portion.

[0038] (15) In the connection unit described in (13) or (14) above, the positioning member is a first positioning end that contacts the frame to restrict a position of the frame so that the frame does not contact the pin portion; a second positioning end that contacts the node member when the connected portion and the link member are connected to each other; and The node member has a fitting portion that fits with the second positioning end of the link member connected to the connected portion.

[0039] According to the connection unit of (15) above, the frame can be held in a more appropriate position on the link member. This further reduces the occurrence of malfunctions in the control unit caused by the frame coming into contact with the pin portion. Furthermore, according to the connection unit of (15) above, the link member and the node member are guided to the appropriate connection position. This makes it easier to connect the frames.

[0040] (16) In the connection unit according to any one of (1) to (15), the node member is a shoulder member having the connected portion; a body member into which the connected portion is fitted; It has.

[0041] According to the connecting unit of (12) above, the node member is formed from the shoulder member and the body member, which are separate components, thereby improving the versatility of the connecting unit and reducing production costs.

[0042] (17) Another embodiment of the present invention is a frame structure including a plurality of connecting frames, each of which has a side of the frame structure and the link member fixed to each end of the frame, The node member; A building assembly set including the connecting unit according to any one of (1) to (16) above.

[0043] The building assembly set of (17) above includes the connecting unit according to any one of (1) to (16) above, and therefore the frame structure can be easily assembled.

[0044] (18) In the building assembly set of (17) above, the plurality of connecting frames all have the same length.

[0045] According to the building assembly set of (18) above, when providing a building assembly set for a regular polyhedron building, the connecting frame included in the building assembly set can be a common part. This reduces the number of types of parts included in the building assembly set. This makes it easier to assemble the building and reduces production costs.

[0046] (19) Another embodiment of the present invention is a method for assembling a building using the connecting unit described in any one of (1) to (16) above, a step of connecting the link members provided on frames constituting sides of the frame structure of the building to the plurality of connected portions of the node member, respectively; switching the locking mechanism corresponding to the connected link member to a locked state; Includes:

[0047] According to the assembly method (19) above, a building can be assembled easily.

[0048] [Overview of buildings, building sets, and connecting units] Figure 1 is a schematic diagram of a building 1 assembled using a connecting unit 10 according to one embodiment of the present invention. Figure 2 is a schematic diagram of a connecting unit 10 according to one embodiment of the present invention. Figure 3 is a schematic diagram of a building assembly set 2 for assembling the building 1.

[0049] The building 1 shown in FIG. 1 is a regular octahedron building including six connecting units 10, twelve frames 20, and four shades 30. The frames 20 are connected via the connecting units 10. The shades 30 are configured to cover one surface of the building 1 surrounded by the frames 20. In the building 1, the shades 30 are provided on the ceiling surface of the building 1 and on three side surfaces that contact each side of the ceiling surface. The shades 30 are installed in the building 1 by tying ropes provided at each vertex of the shade 30 to eye nuts 213 of the connecting units 10, which will be described later. Note that the shades 30 of this embodiment are configured with ropes at each vertex, but hooks, belts, etc. may be used instead of the ropes. The shades 30 of this embodiment may also be configured to be attached to the frames 20 using ropes, hooks, belts, etc.

[0050] 2, the connection unit 10 includes a link member 100 fixed to the frame 20 and a node member 200 to which the link member 100 is connected. The link member 100 includes a retaining member 110, a positioning member 120, and a locking mechanism 130. The node member 200 includes a body member 210 and a shoulder member 220.

[0051] The frame 20 is held by a holding member 110. The frame 20 held by the holding member 110 is fixed to the holding member 110 with fixing means such as screws or bolts. In this way, the frame 20 is fixed to the link member 100. The frame 20 used in the building 1 has the link members 100 fixed to both ends. The frame 20 with the link members 100 fixed to both ends becomes the connecting frame 300 of the building assembly set 2 shown in FIG. 3.

[0052] The body member 210 has an eye nut 213. In this embodiment, the eye nut 213 is disposed on the surface of the body member 210 that faces the interior space of the building 1. The eye nut 213 is used to tie the rope of the shade 30 described above, and can also be used to suspend a hammock, hanging chair, etc. This improves the usability of the interior space of the building 1.

[0053] The shoulder member 220 has a connected portion 221 for engaging the link member 100 to be connected to the node member 200, and a fitting portion 222 for fitting with the link member 100 to be connected to the node member 200. The connected portion 221 is provided with an insertion hole IS into which a pin portion 132 of a locking mechanism 130 (described below) is inserted, and a protrusion 221a for engaging the pin portion 132 inserted into the insertion hole IS. The fitting portion 222 is configured so that the positioning member 120 is fitted into it when the link member 100 is joined to the node member 200. This makes it possible to guide the link member 100 to an appropriate position for connection with the node member 200.

[0054] The building assembly set 2 shown in FIG. 3 includes six node members 200, twelve connecting frames 300, and four shades 30. As described above, the building 1 assembled with the building assembly set 2 is a regular octahedron. Therefore, the node members 200, connecting frames 300, and shades 30 each have the same configuration. When the building to be assembled with the building assembly set of the present invention is a regular polyhedron building, the node members, connecting frames, and shades included in the building assembly set can each be the same. This reduces the number of types of parts included in the building assembly set, making it easier to assemble the building and reducing the production cost of the building assembly set.

[0055] In the building 1 of this embodiment, a square timber frame is used as the frame 20. Unlike the spherical joint components described above, the connection unit 10 does not require the connection frame 300 to be turned when connecting the connection frame 300 to the node member 200. Therefore, with the connection unit 10, when the node member 200 and the connection frame 300 are connected, the work of aligning the surfaces of the square timber frames is not required.

[0056] In the building 1 of this embodiment, wood is used as the material for the frame 20. The length of the wooden frame 20 can be easily adjusted, so the size of the building 1 can be easily changed.

[0057] In the connection unit 10 of this embodiment, the node member 200 has the insertion hole IS and the protrusion 221a, and the link member 100 has the locking mechanism 130. However, the configuration of the connection unit of the present invention is not limited to this. The connection unit of the present invention may also be configured such that the node member 200 has the locking mechanism 130, and the link member 100 has the insertion hole IS and the protrusion 221a. The lever portion 131 and the pin portion 132, which are the control portions of the locking mechanism 130 described below, are movable and therefore more susceptible to malfunction than the insertion hole IS and the protrusion 221a. Therefore, providing the locking mechanism 130 in the link member 100 makes it easier to replace the locking mechanism 130 when a malfunction occurs, compared to providing the locking mechanism 130 in the node member 200. Therefore, it is preferable to provide the locking mechanism 130 in the link member 100.

[0058] Although the building 1 and the building assembly set 2 of this embodiment include a shade 30, the shade is not an essential component of the building and the building assembly set of the present invention. That is, in the present invention, the building may be any structure including a connecting unit and a frame.

[0059] [Configuration of connecting units] Fig. 4 is a perspective view of the connection unit 10. Fig. 5 is a perspective view of the link member 100. Fig. 6 is a perspective view of the node member 200. Fig. 7 is a perspective view of the shoulder member 220. Fig. 8 is a perspective view of the body member 210. Note that Figs. 4 and 5 show the node member 200 in a state where one shoulder member 220 is attached to the node member 200.

[0060] As shown in FIG. 5, the locking mechanism 130 has a lever portion 131 and a pin portion 132. In the locking mechanism 130 of the connecting unit 10, the lever portion 131 is used as a control portion that controls the rotation angle of the pin portion 132, which will be described later. The pin portion 132 has a substantially cylindrical shape and is rotatably inserted into an insertion hole IH that communicates with the holding member 110 and the positioning member 120. The lever portion 131 is provided at one end of the pin portion 132. By manually operating the lever portion 131, the pin portion 132 rotates within the insertion hole IH. Grooves GR are provided near both ends of the pin portion 132 so as to cut out part of the cylindrical shape of the pin portion 132.

[0061] 4 and 5, the holding member 110 is provided with screw holes SH for fastening the frame 20 held by the holding member 110 with screws. The holding member 110 also has a first lever stopper 111, a first protrusion 112, and a frame stopper 113. The frame stopper 113 comes into contact with the frame 20 held by the holding member 110, thereby restricting the holding position of the frame 20 to a position where the frame 20 does not come into contact with the pin portion 132. This prevents malfunction of the lever portion 131 caused by the frame 20 coming into contact with the pin portion 132.

[0062] 4 and 5 show the lever portion 131 in an unlocked state. In the connection unit 10 of this embodiment, the lever portion 131 in the unlocked state is configured so that its tip 131a is positioned in a protruding position in the connection unit 10. That is, the lever portion 131 is configured to rotate so that its tip 131a faces the inside of the building 1 in the locked state and faces the outside of the building 1 in the unlocked state. This improves the visibility of the lever portion 131 in the unlocked state. This reduces the likelihood of forgetting to lock the locking mechanism 130. As a result, the safety of buildings assembled using the connection unit 10 is improved.

[0063] The positioning member 120 has a second lever stopper 121 and a second protrusion 122. Furthermore, the first positioning end 120a of the positioning member 120 comes into contact with the frame 20 held by the holding member 110, thereby restricting the holding position of the frame 20 to a position where the frame 20 does not come into contact with the pin portion 132. This prevents malfunction of the lever portion 131 caused by the frame 20 coming into contact with the pin portion 132. The second positioning end 120b of the positioning member 120 is fitted into the fitting portion 222 when the link member 100 and the node member 200 are connected. This guides the link member 100 to an appropriate connection position with the node member 200.

[0064] As shown in FIGS. 4 and 6, the node member 200 includes a body member 210 and a shoulder member 220. Here, as shown in FIGS. 7 and 8, in the node member 200 of this embodiment, the body member 210 and the shoulder member 220 are configured as separate components. The body member 210 includes a cap portion 212 and a main body portion 211. The main body portion 211 has a fitting portion 211a into which the shoulder member 220 is fitted, and a first bolt hole FBH for inserting a bolt is provided near the center of the fitting portion 211a. The shoulder member 220 also has a second bolt hole SBH that, together with the first bolt hole FBH, forms a communicating hole when the shoulder member 220 is fitted into the fitting portion 211a. The main body portion 211 and the shoulder member 220 can be fixed by inserting a bolt into the communicating hole and tightening it with a nut.

[0065] The cap portion 212 and the main body portion 211 of the body member 210 are configured to be detachable. By removing the cap portion 212 from the main body portion 211, it becomes possible to access the bolts that secure the main body portion 211 and the shoulder member 220 (not shown). This allows the main body portion 211 of the node member 200 to be easily attached and detached from the shoulder member 220.

[0066] The building 1 shown in FIG. 1 is a regular octahedral building, but application of the connection unit of the present invention is not limited to regular octahedral buildings. The connection unit of the present invention can be applied to buildings of various three-dimensional shapes by changing the number of shoulder members 220 arranged on the body member 210 of the node member 200, the fixed angle between the body member 210 and the shoulder members 220, and the arrangement angle between the shoulder members 220. For example, a node member 200 applicable to a hexahedral building can be constructed by setting the number of shoulder members 220 to three, the fixed angle to 90°, and the arrangement angle to 60°. As described above, in the node member 200, the body member 210 and the shoulder member 220 are configured as separate components. Therefore, by using the shoulder member 220 and the link member 100 as common components and changing the configuration of the fitting portion 211a of the body member 210, a connection unit 10 applicable to the target building can be provided. That is, if the body member 210 and the shoulder member 220 are configured as separate parts, the versatility of the connecting unit 10 can be improved and the production costs can be reduced.

[0067] [Building assembly method and configuration of connecting units in each joint state] Fig. 9 is an explanatory diagram showing the procedure for assembling the building 1 using the building assembly set 2. Fig. 10 is an explanatory diagram showing the relationship between the link member 100 and the shoulder member 220 in the unlocked state. Fig. 11 is an explanatory diagram showing the relationship between the link member 100 and the shoulder member 220 in the locked state.

[0068] Fig. 9(a) is a schematic diagram of one side end of the connecting frame 300 in an unlocked state. Fig. 9(b) is a schematic diagram showing the connecting frame 300 and the node member 200 in an unlocked state before joining. The arrow in Fig. 9(b) indicates the joining direction of the connecting frame 300 to the node member 200. Fig. 9(c) is a schematic diagram showing the joined assembly of the connecting frame 300 and the node member 200 after joining. The arrow in Fig. 9(c) indicates the rotation direction of the lever portion 131 from the unlocked state to the locked state. Fig. 9(d) is a schematic diagram showing the joined assembly of the connecting frame 300 and the node member 200 in an unlocked state.

[0069] FIG. 10(a) is a front view of the assembly of the link member 100 and the shoulder member 220 in the unlocked state. FIG. 10(b) is a side view of the assembly of the link member 100 and the shoulder member 220 in the unlocked state, showing the side where the lever portion 131 is located. FIG. 10(c) is a cross-sectional view taken along line AA in FIG. 10(b). FIG. 11(a) is a front view of the assembly of the link member 100 and the shoulder member 220 in the locked state. FIG. 11(b) is a side view of the assembly of the link member 100 and the shoulder member 220 in the locked state, showing the side where the lever portion 131 is located. FIG. 11(c) is a cross-sectional view taken along line BB in FIG. 11(b). The double-headed arrows in FIG. 10 indicate the front-rear and up-down directions of the assembly shown in FIG. 10(b), respectively. The arrows in FIG. 10 indicate the rotatable directions of the lever portion 131 in the unlocked state. The double-headed arrows in Fig. 11 respectively indicate the front-rear direction and the up-down direction of the joined body shown in Fig. 11(b) The arrows in Fig. 11 indicate the rotatable direction of the lever portion 131 in the locked state.

[0070] The method for assembling the building 1 using the connecting frame 300 includes a step of connecting the link members 100 of the connecting frame 300 to the connected portions 221 provided on the shoulder members 220 of the node member 200 (hereinafter referred to as the "connecting step"), and a step of switching the locking mechanisms 130 corresponding to the connected link members 100 to the locked state (hereinafter referred to as the "connecting step"). The steps for assembling the building 1 using the building assembly set 2 will be described in detail below.

[0071] The procedure for assembling the building 1 using the building assembly set 2 includes an unlocking step, a connecting step, and a locking step. In the unlocking step, the lever portion 131 of the connecting frame 300 is manually set to the unlocked position shown in FIGS. 9( a) and 10. In the connecting step, as shown in FIG. 9( b), the link member 100 of the connecting frame 300, which has been set to the unlocked state, is connected to the shoulder member 220 of the node member 200. In the locking step, the lever portion 131 of the connecting frame 300 connected to the node member 200 in the connecting step is manually rotated from the unlocked state to the locked state as shown in FIG. 9( c), and set to the locked state position as shown in FIGS. 9( d) and 11. In this way, when assembling the building 1 using the building assembly set 2, the node member 200 and the connecting frame 300 can be connected by manually operating the lever portion 131 without using tools such as wrenches or screwdrivers. Therefore, it is possible to easily assemble the building 1. Note that the building 1 assembled using the building assembly set 2 can be dismantled by following the assembly procedure shown in FIG. 9 in reverse order.

[0072] As shown in FIGS. 10(a) and 10(c), in the unlocked state, the groove GR provided in the pin portion 132 of the locking mechanism 130 is positioned downward. As a result, when the link member 100 is inserted into the insertion hole IS of the shoulder member 220, the groove GR prevents the pin portion 132 of the link member 100 from contacting the protrusion 221a of the shoulder member 220. That is, the pin portion 132 in the unlocked state is configured to be at a second angle, which is a rotation angle at which the groove GR is positioned downward. As a result, the pin portion 132 in the unlocked state is in a state where it can be inserted into and removed from the insertion hole IS. Therefore, the connecting frame 300 in the unlocked state can be attached to and detached from the node member 200.

[0073] 10(b), in the unlocked state, the lever portion 131 of the locking mechanism 130 is disposed between the second lever stopper 121 and the second convex portion 122. In this embodiment, the lever portion 131 is disposed on the upper side, with its tip 131a facing outward in the unlocked state. The second lever stopper 121 and the second convex portion 122 are both configured as spherical surfaces that protrude from the side surface of the positioning member 120.

[0074] The lever portion 131 is configured to be able to rotate with some play relative to the side surface of the positioning member 120. The second lever stopper 121 is configured to protrude from the side surface of the positioning member 120 to a height that prevents the lever portion 131 from rotating forward over the second lever stopper 121. That is, the second lever stopper 121 is configured to restrict movement of the lever portion 131 with the tip 131a facing outward. This allows the lever portion 131 to be easily positioned, by manual operation, at an appropriate position where the link member 100 is in the unlocked state. Meanwhile, the second protrusion 122 is configured to protrude from the side surface of the positioning member 120 to a height that allows the lever portion 131 to rotate backward over the second protrusion 122 due to the play of the lever portion 131, and that causes resistance to be felt when the lever portion 131 is manually rotated due to contact between the lever portion 131 and the second protrusion 122 when the lever portion 131 moves over the second protrusion 122. This makes it possible to prevent accidental rotation of the lever portion 131 in the unlocked state. As a result, the lever portion 131 in the unlocked state is maintained in the appropriate position for the unlocked state, and the link member 100 and the node member 200 can be smoothly attached and detached from each other.

[0075] As shown in FIGS. 11(a) and 11(c), in the locked state, the groove GR provided in the pin portion 132 of the locking mechanism 130 is positioned upward. As a result, the pin portion 132 of the link member 100 inserted into the insertion hole IS comes into contact with the protrusion 221a of the connected portion 221 provided on the shoulder member 220. That is, the pin portion 132 in the locked state is configured to be at a first angle, which is a rotation angle at which the groove GR is positioned upward. As a result, the pin portion 132 in the locked state is locked in the insertion hole IS. Therefore, in the locked state, the pin portion 132 placed in the insertion hole IS cannot be pulled out from the insertion hole IS. As a result, in the locked state, the connection between the connecting frame 300 and the node member 200 is fixed.

[0076] As shown in FIG. 11(b), in the locked state, the lever portion 131 of the locking mechanism 130 is disposed between the first lever stopper 111 and the first convex portion 112. In this embodiment, the lever portion 131 is disposed on the lower side, with its tip 131a facing inward in the locked state. The first lever stopper 111 is configured to protrude in a line from the side surface of the holding member 110. The first convex portion 112 is configured as a spherical surface protruding from the side surface of the holding member 110.

[0077] The first lever stopper 111 is configured to protrude from the side surface of the holding member 110 to a height that prevents the lever portion 131 from rotating forward over the first lever stopper 111. That is, the first lever stopper 111 is configured to restrict movement of the lever portion 131 with the tip 131a facing inward. This allows the lever portion 131 to be easily positioned, by manual operation, at an appropriate position where the link member 100 is in the locked state. Meanwhile, the first convex portion 112 is configured to protrude from the side surface of the holding member 110 to a height that allows the lever portion 131 to rotate rearward over the first convex portion 112 due to the above-described play of the lever portion 131, and that causes resistance to be felt when the lever portion 131 is manually rotated due to contact between the lever portion 131 and the first convex portion 112 when the lever portion 131 moves over the first convex portion 112. This prevents accidental rotation of the lever portion 131 in the locked state. As a result, the lever portion 131 in the locked state is maintained in an appropriate position for the locked state, and accidental detachment of the link member 100 from the node member 200 is suppressed.

[0078] [Regular polyhedral building] Figure 12 is a schematic diagram of a tetrahedron building 3 assembled using connecting units 11 according to another embodiment of the present invention. Figure 13 is a schematic diagram of a regular icosahedron building 4 assembled using connecting units 12 according to another embodiment of the present invention. Figure 14 is a schematic diagram of a regular dodecahedron building 5 assembled using connecting units 13 according to another embodiment of the present invention.

[0079] Building 4 is a building with a frame structure that forms 15 faces of a regular icosahedron. Building 5 is a building with a frame structure that forms 6 faces of a regular dodecahedron. Buildings 3, 4, and 5 use the same frame 20 as building 1 on their sides. Therefore, the assembly sets for assembling buildings 3, 4, and 5 can use connecting frame 300 as a common part. Furthermore, buildings 3 and 4 can use 30 (shade) as a common part, the same as building 1. Therefore, by targeting regular polyhedron buildings with the building assembly sets equipped with the connecting units of the present invention, the production costs of the building assembly sets can be reduced.

[0080] The connection unit 11 of building 3, the connection unit 12 of building 4, and the connection unit 13 of building 5 use the same link member 100 as the connection unit 10 of building 1. Also, like the connection unit 10, the connection units 11, 12, and 13 are composed of a body member and a shoulder member that can be attached or detached thereto. The number, fixing angle, and placement angle of the shoulder members described above on each body member of the connection units 10, 11, 12, and 13 are configured to suit the target building. Note that in buildings 4 and 5, the shoulder members that are not connected to the connecting frame 300 are removed from the node members that are placed in a position that comes into contact with the ground. This improves the ease with which buildings 4 and 5 can be installed on the ground.

[0081] [Modification of locking mechanism] In the locking mechanism 130 of the connecting unit 10 described above, an example has been shown in which the lever portion 131 is used as the control portion that controls the rotation angle of the pin portion 132. However, the control portion according to the present invention is not limited to a lever portion as long as it can manually control the rotation angle of the pin portion. Below, as a modified example of the locking mechanism, an example of a locking mechanism in which a knob portion is used instead of the lever portion and a latch member is used to suppress rotation of the pin portion in the locked state will be shown.

[0082] FIG. 15 is a perspective view of a connection unit 14 according to another embodiment of the present invention. FIG. 16 is an explanatory diagram showing the steps for assembling a building using a building assembly set including the connection unit 14 shown in FIG. 15. FIG. 17 is an explanatory diagram showing the relationship between the link member 100 and the shoulder member 220 of the connection unit 14 shown in FIG. 15 in an unlocked state. FIG. 18 is an explanatory diagram showing the relationship between the link member 100 and the shoulder member 220 of the connection unit 14 shown in FIG. 15 in a locked state before the pin portion 132 is restricted from turning by the latch member 400. FIG. 19 is an explanatory diagram showing the relationship between the link member 100 and the shoulder member 220 of the connection unit 14 shown in FIG. 15 in a locked state after the pin portion 132 is restricted from turning by the latch member 400. In FIGS. 15 to 19, the same components as those in the connection unit according to the above-described embodiment are assigned the same numbers, and the description thereof will be omitted.

[0083] 15, the connecting unit 14 employs a knob portion 133 as a control portion instead of the lever portion 131 that is the control portion of the connecting unit 10 described above. Also, in the connecting unit 14, the positioning member 120 has a latch hole BHO for passing the latch member 400. Furthermore, as shown in FIGS. 17 to 19, the connecting unit 14 has a recess CON in which the end portion 400a of the latch member 400 that has passed through the latch hole BHO is fitted when the pin portion 132 is at a first angle that is the rotation angle in the locked state.

[0084] The connection unit 14 uses a knob portion 133 as a control unit. Therefore, the connection unit 14 does not have a first lever stopper 111 and a first protrusion 112 for maintaining the lever portion 131 in an appropriate position for the locked state, nor a second lever stopper 121 and a second protrusion 122 for maintaining the lever portion 131 in an appropriate position for the unlocked state. On the other hand, as shown in FIG. 15 , the connection unit 14 has a lock index LIN that indicates the position of the knob portion 133 in the locked state, and an unlock index UIN that indicates the position of the knob portion 133 in the unlocked state. Note that the connection unit 14 shown in FIG. 15 is in a locked state in which the tip 133a of the knob portion 133 is positioned facing the unlock index UIN.

[0085] FIG. 16(a) is a schematic diagram showing the connecting frame 300 and the node member 200 in an unlocked state before the connecting unit 14 is joined. FIG. 16(b) is a schematic diagram showing the joined connecting frame 300 and the node member 200 in an unlocked state after the connecting unit 14 is joined. The arrow in FIG. 16(b) indicates the rotation direction of the knob portion 133 from the unlocked state to the locked state. FIG. 16(c) is a schematic diagram showing the joined connecting frame 300 and the node member 200 in a locked state before the rotation of the pin portion 132 of the connecting unit 14 is restricted by the bar member 400. The arrow in FIG. 16(c) indicates the insertion direction of the bar member 400 to fit the end portion 400a of the bar member 400 into the recess CON. FIG. 16(d) is a schematic diagram showing the joined body of the connecting frame 300 and the node member 200 in a locked state after the rotation of the pin portion 132 of the connecting unit 14 has been restricted by the bar member 400.

[0086] FIG. 17(a) is a front view of the assembly of the link member 100 and the shoulder member 220 of the connection unit 14 in the unlocked state. FIG. 17(b) is a side view of the assembly of the link member 100 and the shoulder member 220 of the connection unit 14 in the unlocked state, showing the side where the knob portion 133 is located. FIG. 17(c) is a cross-sectional view taken along CC in FIG. 17(b). FIG. 18(a) is a front view of the assembly of the link member 100 and the shoulder member 220 of the connection unit 14 in the locked state, before the bar member 400 restricts the rotation of the pin portion 132. FIG. 18(b) is a side view of the assembly of the link member 100 and the shoulder member 220 of the connection unit 14 in the locked state, before the bar member 400 restricts the rotation of the pin portion 132, showing the side where the knob portion 133 is located. FIG. 18(c) is a cross-sectional view taken along DD in FIG. 18(b). FIG. 19(a) is a front view of the assembly of the link member 100 and the shoulder member 220 in the connection unit 14 in the locked state after the bar member 400 has restricted the rotation of the pin portion 132. FIG. 19(b) is a side view of the assembly of the link member 100 and the shoulder member 220 in the connection unit 14 in the locked state after the bar member 400 has restricted the rotation of the pin portion 132, from the side where the knob portion 133 is located. FIG. 19(c) is an E-E cross-sectional view of FIG. 19(b). The double-headed arrows in FIG. 18 indicate the front-rear and up-down directions of the assembly shown in FIG. 18(b), respectively. The arrows in FIG. 18 indicate the rotatable directions of the pin portion 132 when switching from the unlocked state to the locked state. The double-headed arrows in FIG. 18 indicate the front-rear and up-down directions of the assembly shown in FIG. 18(b), respectively. The arrow in Fig. 18 indicates the direction in which the pin portion 132 can rotate when switching from the locked state to the unlocked state. The double-headed arrow in Fig. 19 indicates the front-rear direction and the up-down direction, respectively, of the assembly shown in Fig. 19(b). In the assembly shown in Fig. 19, the rotation of the pin portion 132 is restricted by the latch member 400. Therefore, the pin portion 132 shown in Fig. 19 cannot rotate to switch from the locked state to the unlocked state. Therefore, an arrow indicating the rotation direction is not shown in Fig. 19.

[0087] As shown in FIGS. 17 to 19 , the bar member 400 has a screw structure. A thread is provided on the rod-shaped portion of the bar member 400. The outer periphery of the bar hole BHO is also provided with a thread corresponding to the thread on the rod-shaped portion of the bar member 400. In other words, the bar member 400 and the bar hole BHO have a male-female thread relationship. Specifically, the bar member 400 used in the connection unit 14 is a hand screw, and the insertion depth of the tip 400a of the bar member 400 can be adjusted manually without using a tool. The bar member of the present invention is not limited to a hand screw, and screws that can be turned using tools such as a screwdriver or wrench can also be used. From the perspective of ease of operation, it is preferable to use a hand screw as the bar member of the present invention. Furthermore, the bar member of the present invention is not limited to one having a screw structure. For example, a rivet without a thread on the rod-shaped portion can also be used as the bar member. From the viewpoint of the stability of the pin portion 132 in preventing rotation, the latch member of the present invention preferably has a screw structure.

[0088] As shown in FIGS. 17(a) and 17(b), when the knob portion 133 is positioned so that the tip 133a of the knob portion 133 faces the unlock indicator UIN, the groove GR formed in the pin portion 132 faces downward. In other words, the locking mechanism 130 is in an unlocked state. In the unlocked state, the pin portion 132 faces downward. Therefore, in the unlocked state, the end 400a of the bar member 400 cannot be fitted into the recess CON. In other words, in the unlocked state, the rotation of the pin portion 132 is not inhibited by the end 400a of the bar member 400 fitting into the recess CON. Therefore, the knob portion 133 can be rotated in the rotatable direction indicated by the arrow in FIG. 17(b). In other words, the locking mechanism 130 in FIG. 17 is in a state in which it can be switched from the unlocked state to the locked state.

[0089] As shown in FIGS. 18(a) and 18(b), when the knob portion 133 is positioned so that the tip 133a of the knob portion 133 faces the lock indicator LIN, the groove GR formed in the pin portion 132 faces upward. That is, the locking mechanism 130 is in a locked state. Here, as shown in FIG. 18(c), when the pin portion 132 is in the locked state, the recess CON formed in the pin portion 132 faces upward. Therefore, in the locked state, the end 400a of the bar member 400 can be fitted into the recess CON. In other words, by tightening the bar member 400, which is a hand screw, the insertion depth of the tip 400a of the bar member 400 can be adjusted so that it reaches the inside of the recess CON, as shown in FIG. 19(c). In FIG. 18, the end 400a of the bar member 400 is not fitted into the recess CON. Therefore, the knob 133 can be rotated in the rotation direction indicated by the arrow in Figure 18(b). That is, the lock mechanism 130 in Figure 18 is in a state where it can be switched from a locked state to an unlocked state.

[0090] FIG. 19 shows the assembly of the link member 100 and the shoulder member 220, with the end 400a of the bar member 400 fitted into the recess CON. As shown in FIG. 19(c), the tip 400a of the bar member 400 reaches the interior of the recess CON. This prevents the pin 132 from rotating. This stably maintains the locked state. This improves the safety of buildings assembled using the connecting unit 14. Note that the recess CON in this embodiment is not threaded. However, the recess of the present invention may also be threaded. If the recess is threaded, precision is required in adjusting the rotation angle of the pin 132 to fit the tip 400a of the bar member 400 into the recess. Therefore, from the perspective of facilitating the joining operation of the link member 100 and the node member 200, it is preferable that the recess of the present invention is not threaded.

[0091] The connecting unit 14 employs a washer 500, which prevents damage to the positioning member 120 caused by tightening the bar member 400. The use of the washer 500 is not essential, and the washer 500 may not be used. The connecting unit 14 is an example of a locking mechanism that employs a knob portion and a bar member to prevent rotation of the pin portion in the locked state, but the present invention is not limited to this. For example, a locking mechanism may employ a lever portion and a bar member to prevent rotation of the pin portion in the locked state. [Industrial Applicability]

[0092] The connecting unit, the building assembly set, and the building assembly method described above can be applied to various buildings. [Explanation of symbols]

[0093] 1, 3, 4, 5 Buildings 2 Building Construction Sets 10, 11, 12, 13, 14 Connecting units 20. Timber frame 30, 31 shades 100 Link member 110 Holding member 111 First lever stopper 112 First convex part 113 Frame Stopper 120 Positioning member 120a First positioning end 120b second positioning end 121 Second lever stopper 122 Second convex part 130 Locking mechanism 131 Lever part 131a Tip of lever 132 Pin section 133 Knob 133a Tip of knob 200 node members 210 Fuselage members 211 Main body 211a Inset part 212 Cap part 213 Ainat 220 Shoulder member 221 Connected part 221a Protrusion 222 fitting part 300 connecting frame 400 Bolt parts 400a End of the latch member 500 washers IS insertion hole GR Groove SH screw hole FBH first bolt hole SBH second bolt hole LIN Lock Indicator UIN Unlocked Indicator BHO bolt hole CON recess

Claims

1. A connection unit that constitutes a node of a frame structure of a building, a node member having a plurality of connected portions whose connecting direction is in the side direction of the frame structure; a link member detachably connected to each of the plurality of connected portions; A connection unit comprising a locking mechanism that can be manually switched between a locked state that maintains the connection between the connected portion and the link member, and an unlocked state that allows the connecting portion to be separated from the connected portion.

2. The locking mechanism is a pin portion that rotates around a direction perpendicular to the connecting direction; a control unit that controls a rotation angle of the pin portion; and The switching to the locked state is performed by causing the control unit to set the rotation angle of the pin portion to a first angle, The switching to the unlocked state is performed by causing the control unit to set the rotation angle of the pin portion to a second angle. The coupling unit of claim 1 .

3. the link member includes the locking mechanism, The connected portion is an insertion hole into which the pin portion at the second angle can be inserted and removed; a protrusion that locks the pin portion inserted into the insertion hole at the first angle within the insertion hole; The coupling unit of claim 2 , having:

4. The connecting unit according to claim 3, wherein the control unit is a lever portion that rotates so that its tip faces the inside of the building in the locked state and its tip faces the outside of the building in the unlocked state.

5. The connecting unit according to claim 4 , wherein the link member has a first lever stopper for restricting movement of the lever portion whose tip is directed toward the interior of the building.

6. The connecting unit according to claim 4 , wherein the link member has a second lever stopper for restricting movement of the lever portion whose tip is directed toward the outside of the building.

7. The connecting unit according to claim 3 , wherein the control portion is a knob portion provided on at least one end of each of the pin portions.

8. a lock indicator that indicates the position of the knob in the locked state; an unlock indicator that indicates the position of the knob in the unlocked state; 8. The coupling unit of claim 7, having:

9. The link member has a bar hole for passing a bar member therethrough, The pin portion has a recess into which an end portion of the latch member that has passed through the latch hole is fitted at the first angle. A coupling unit according to claim 3.

10. The connecting unit according to claim 9 , wherein the bar member and the bar hole have a male-female thread relationship.

11. The connecting unit according to claim 3 , wherein the pin portion has a groove for preventing contact between the pin portion and the protrusion when the pin portion is inserted into or removed from the insertion hole at the second angle.

12. The frames constituting the sides of the frame structure are square timber frames, The connecting unit according to claim 3 , wherein the beam frame is fixed to the link member.

13. The link member is a holding member for holding a frame that constitutes a side of the frame structure; a positioning member for restricting the position of the square timber frame so that the frame does not come into contact with the pin portion; 4. The coupling unit of claim 3, having:

14. The connecting unit according to claim 13 , wherein the holding member has a frame stopper for restricting the position of the frame so that the frame does not come into contact with the pin portion.

15. The positioning member is a first positioning end that restricts the position of the frame by contacting the frame so that the frame does not contact the pin portion; a second positioning end that contacts the node member when the connected portion and the link member are connected to each other; and The connection unit according to claim 14 , wherein the node member has a fitting portion that fits with the second positioning end of the link member connected to the connected portion.

16. The node member is a shoulder member having the connected portion; a body member into which the connected portion is fitted; The linkage unit of claim 1 , having:

17. a plurality of connecting frames, each of which has the link member fixed to both ends of a frame constituting a side of the frame structure; the node member; A building assembly set comprising the connecting unit according to any one of claims 1 to 16.

18. 18. The building assembly set according to claim 17, wherein the plurality of connecting frames all have the same length.

19. A method for assembling a building using the connecting unit according to any one of claims 1 to 16, comprising: a step of connecting the link members provided on frames constituting sides of the frame structure of the building to the plurality of connected portions of the node member, respectively; switching the locking mechanism corresponding to the connected link member to a locked state; A method of assembling a building, including:

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