JP5698385B2 - Building blocks and building block fixtures - Google Patents

Description

  The present invention relates to a building block. In particular, it relates to a building block having complementary mating portions on both sides for a stackable assembly of structures. Furthermore, the present invention relates to toys, furniture and architectural structures composed of linked building blocks.

  Many structures, including toys, buildings, furniture, etc., are formed by modular components (parts) commonly referred to as “building blocks”.

  U.S. Pat. No. 3,005,282, U.S. Pat. No. 3,034,254, and U.S. Pat. No. 3,597,875 describe the construction of multi-layered or high-rise toy structures by connecting building bricks. A structured stackable toy building brick is disclosed. Such building bricks typically comprise a rigid plastic molded body having a side defined by an upper mating surface, a lower mating surface, and an outer periphery. The upper fitting portion includes a plurality of cylindrical fitting convex portions, and the lower fitting portion includes a plurality of corresponding hollow cylindrical convex portions. A plurality of corresponding hollow cylindrical convex portions cooperate with outer peripheral side surfaces to jointly define a fitting receptacle (receiving portion) for receiving the fitting convex portion of the upper fitting surface of the building brick immediately below, Providing frictional coupling in the crimping means. While the fitting projection is typically a regular cylindrical shape, a non-cylindrical upper fitting projection that is a building block having a prismatic shape is known, for example, in EP1, 464,369.

  Modular building bricks are widely used because they have the advantage of providing the degree of freedom and adaptability that allows for the construction of convenient and aesthetically valuable structures. However, it has proven difficult to form a stable structure by connecting building blocks.

  In this application, the term “building block” is used to construct building blocks for toys, such as those commonly referred to as “building bricks,” and architecture, furniture, equipment, and vehicles. It includes a non-toy structural block that also includes a modular element.

  That is, the provided building block includes a first fitting portion and a second fitting portion that are complementary to each other on both sides, and the first fitting portion is a through hole extending in the axial direction. And the second fitting portion includes a fitting receptacle extending in the axial direction that is complementary to the fitting convex portion, and the fitting convex portion and the fitting receptacle are shafts. Fastenings that are aligned with each other and extend in the opposite direction, the fitting projection and the fitting receptacle communicating through the through-hole and configured to engage the engaging means of the fixture A fixing device is formed inside the convex portion that defines the through hole.

  In one embodiment, the through-hole is configured to allow axial insertion of the engagement means of the fixture into the fitting protrusion, and obtains axial advancement and the fastening. The fastening and fixing device is configured to obstruct the axial path of the engaging means until the engaging means overcomes the obstruction by rotational navigating with the fastening and fixing device to engage the fixing device. Yes.

  In one embodiment, the fastening and fixing device includes an engaging portion that protrudes radially inward from the inside of the protruding means (convex portion) that defines the through hole.

  The fastening and fixing device enables releasable connection of a plurality of building blocks, facilitating fixing of a structure constructed from the building blocks.

  For example, the fastening and fixing device may include an overhanging portion that protrudes radially inward from the portion of the fitting convex portion that defines the through hole. The protruding overhanging portion defines a second opening inside the through hole. The second opening is large enough to allow sliding passage of the shaft portion of the fixture, but not large enough to allow sliding passage of the engagement means of the fixture.

  The overhanging portion can be formed as a helical screw portion or a split washer. This aids screw locking with a fixture having screw or non-screw engaging means. Examples of non-threaded engagement means include radial projecting studs or bosses distributed around the outer periphery of the end of the fixture, the fixture having a shaft portion with reduced dimensions compared to the protruding stud overhang.

  In one example, the building block is configured to connect to another building block using a fixture, the fixture connecting the head portion, the end portion, and the head portion and the end portion. The through hole and the fastening and fixing device are configured to allow free sliding movement (stroke) of the shaft portion of the fixture. When the through hole is configured to allow sliding movement of the shaft portion of the fixture, the shaft portion of the fixture is not engaged or constrained by the building block or the building block including it. This makes it possible to align the building blocks in different orientations relative to each other or to change the relative orientation when desired or necessary.

  In one example building block, the tubular portion is configured to prevent entry of the head portion of the fixture into the through hole. To cooperate with this building block, the mating receptacle is complementary to an assembly comprising a mating projection and a fixture head that protrudes over the mating projection that is blocked by the mating projection during use. .

  Further provided is a building block fixture configured to connect a plurality of building blocks of the type described herein. The fixing device includes a head portion, an end portion provided with an engaging means, and a shaft portion connecting the head portion and the end portion, and the engaging means of the end portion is blocked by the fastening and fixing device. However, the shaft portion is configured to obtain an axial advance and engage with the fastening and fixing device when the interference is overcome by rotating into the fastening and fixing device, and the shaft portion is configured to move from the axial movement. It is configured to pass through the building block without being constrained or engaged, and the head portion is configured to be blocked by the first building block.

  The fixture may be molded from hard plastic or integrally formed from a metal such as stainless steel.

  Fixtures are advantageous because they allow the building blocks to be connected regardless of the relative orientation of the building blocks when the building blocks are mated. For example, regardless of whether the building blocks are arranged in parallel or at right angles, the fixture allows for the fixation of the intermediate building blocks of the building block for a series of building blocks in mating connection. This is because the fixture can connect the building blocks regardless of whether the building blocks are aligned in parallel, aligned at a right angle, or aligned at an angle between parallel and vertical. Since the shaft portion of the fixture is not constrained from axial movement or engaged with the building block, a flexible building block connection is possible. At the same time, a series of building blocks can be connected by such a fixture, and when the two ends of the fixture are fastened to the ends of the series of building blocks with a mating connection, the fixture is connected to the construction of the destination. Threaded engagement only with the block.

  In another embodiment, a structure is provided comprising a plurality of building blocks according to the present disclosure coupled by a plurality of fasteners according to the present disclosure.

  The first mating portion of each building block includes a plurality of mating protrusions distributed in a regular rectangular array or regular rectangular matrix, and the second mating portion of each building block is regular. A plurality of corresponding fitting recesses distributed in a rectangular array or a regular rectangular matrix, the fitting protrusions of the first fitting portion being the corresponding complementary fitting recesses of the second fitting portion. The fitting protrusions are aligned, and the respective fitting protrusions communicate with the corresponding fitting recesses through the through holes.

  The expression “unrestricted” means unhindered, free, unblocked or not engaged, and the shaft portion of the fixture rotates freely with respect to the through-hole when unconstrained. Possible or slidable.

  Exemplary building blocks having the features described above are described for exemplary purposes with reference to the following accompanying drawings.

FIG. 1 is an upper perspective view showing the building block of the first embodiment. 1A, 1B and 1C show a side view, a plan view and a bottom view of the building block of FIG. 1, respectively. 1D and 1E show the AA section and the BB section of FIG. 1B, respectively. FIG. 2 is an upper perspective view showing the building block of the second embodiment. 2A, 2B, and 2C show a side view, a plan view, and a bottom view of the building block of FIG. 2, respectively. 2D and 2E show the AA section and the BB section of FIG. 2B, respectively. 3, 4 and 5 are upper perspective views showing the building blocks of the third, fourth and fifth embodiments, respectively. 6 and 6A to 6D are a plan view, a bottom view, and an AA sectional view and a BB sectional view, respectively, of the building block of the sixth embodiment. 7, 7A, and 7B are an upper perspective view, an exploded view, and an exploded view of the building block of the seventh embodiment, respectively. 8 and 8A to 8D are a plan view, a bottom view, and an AA exploded view and a BB exploded view, respectively, of the building block of the eighth embodiment. 9 and 9A are a perspective view and a side view, respectively, of the building block fixture of the first embodiment. 10 and 10A are a perspective view and a side view, respectively, of the building block fixture of the second embodiment. 11 and 11A are a perspective view and a side view, respectively, of the building block fixture of the third embodiment. 12 and 12A to 12D are a perspective view, a side view, a front view, a DD cross-sectional view, and an EE cross-sectional view of the structure of the building block of one embodiment. 13 and 13A are a perspective view and a cross-sectional view showing two building blocks connected by the fixture of FIG. 11, respectively. FIG. 13B is a perspective view showing a building block assembly comprising the two connected building blocks of FIG. FIG. 13B is an exploded view of the assembly of FIG. 13B. 13D and 13E are an AA sectional view and a BB sectional view of FIG. 13B, respectively. FIG. 14 is a perspective view showing a desk assembled from a plurality of building blocks. 14A-14E are enlarged cross-sectional views along various lines AA and BB of various parts of the desk of FIG. 15A and 15B are front and rear perspective views of the desk drawer of FIG. 15C-15L are perspective views showing the various layers of the drawer of FIGS. 15A and 15B. 16, 16A and 16B show a first variant of building block connection. 17, 17A and 17B show a second variant of building block connection. 18, 18A and 18B show a third variant of building block connection.

  The building block 100 of the first embodiment shown in FIGS. 1-1E includes a plastic molded body. The body includes a base panel 120, a tubular portion 140 projecting upward from the base panel 120, and an upper fitting portion projecting downward from the base panel 120 and having an outer peripheral skirt 160 surrounding the base panel 120; And a lower fitting portion having a receptacle 180 defined by partitioning the structure inside the outer peripheral skirt 160. The base panel 120 has a square shape or a substantially square shape, and the tubular portion is disposed substantially at the center of the base panel.

  The tubular portion 140 includes a cylindrical wall 142 that protrudes vertically above the base panel 120 and is spaced apart from the base panel 120 as an example of an upper fitting convex portion of the building block. The tubular portion defines an inner hole 144 that extends through the panel member 120, thereby facilitating communication between the upper and lower mating portions of the building block 100. The hole axis of the inner hole 144 is parallel to the axis of the cylindrical wall 142 defining the tubular portion 140 and is orthogonal to the surface of the base panel 120.

  The outer peripheral skirt 160 protrudes vertically downward from the base panel 120 and includes four side panels 162. The four side panels 162 each extend vertically downward from the edge of the square base panel 120. Each of the side panels 162 has a uniform depth so that when the building block 100 lies on a flat or smooth plane, the upper surface of the base panel 120 is parallel to the flat or smooth plane. .

  The outer peripheral skirt 160 defines the receptacle 180 by a partition structure. The receptacle 180 is configured to receive the upper mating projection of a compatible building block in close contact as an example of a portion of the lower mating portion of the building block, so that the lower building block The building block is mechanically coupled or engaged with the lower building block when the upper mating portion is fully inserted into the receptacle 180. The partition structure is formed from a plurality of partition panels 182. Each partition panel 182 is parallel to the hole axis of the hole 144 and protrudes from the center position of the side panel 162 toward the inner center of the outer peripheral skirt 160 at a right angle. In other words, each of the divider panels 182 extends toward the central axis of the receptacle 180, but stops before reaching the central axis of the receptacle 180, so that it defines the outer boundary of the receptacle 180. This is the inner center of the outer peripheral skirt 160. Receptacle 180 is configured to assist in frictional engagement with the upper mating protrusion of another building block, which is complementary to the tubular portion and has a cylindrical outer boundary. Since the tubular portion 140 and the receptacle 180 are axially aligned and share a common axis, the receptacle 180 is directly below the tubular portion 140.

  As an example of a fastener anchoring device, a screw portion having one spiral screw thread 146 is disposed inside the cylindrical wall 142. The spiral thread is integrally formed inside the cylindrical wall 142 and projects radially inward toward the central axis of the cylindrical wall that defines the tubular portion 140. As shown in FIGS. 1B, 1C, and 1E, one helical screw 146 has less than a complete turn, and a gap 148 remains between the ends of the helical thread. The innermost edge of the helical thread defines the through hole 152 and defines the maximum horizontal internal clearance of the tubular section 140. The through-hole 152 will be described below as an example of a through-hole for allowing an unrestricted or non-engagement path (movement) of the shaft portion of the intermediate block fixture, but the shaft portion of the fixture is blocked. Defined by diametrically opposed screw edges to allow no passage. The helical thread 146 may be tapered towards the central hole axis, in which case a tapered thread edge is used.

  As shown in FIGS. 2-2E, the building block 200 is substantially the same in structure as the building block 100. However, whereas the building block 100 includes only one upper fitting convex portion on the square base panel 120, the upper fitting portion of the building block 200 includes two upper fitting convex portions as a rectangular base panel. It is different in that it has the shape of the tubular portion 240 arranged on 220. As with the building block 100, each tubular portion 240 is defined by a cylindrical wall 242. The cylindrical receptacle 280 is coaxial with the tubular portion 240, is defined by a partition structure including a partition panel 282, and is disposed immediately below the tubular portion 240. Each partition panel extends perpendicularly from the side panel 262 of the outer peripheral skirt 260 toward the inner central axis of the receptacle.

  Base panel 220 is rectangular, has a 2: 1 length-to-width aspect ratio, is twice the width, and the width is the width of building block 100 for convenient stackability. Is the same. Thus, the base panel 220 extends along the long axis of the base panel 220 and divides the rectangular surface of the base panel 220 into two equal elongated portions as illustrated in FIG. 2B (BB). ) Along the two square base panels 120 of the building block 100 can be considered. The two tubular parts 240 are arranged so that each tubular part 240 is concentric in the center of the square base panel part including the tubular part 240 and the distance between the two tubular parts 240 is equal to the width of the square panel part. . Since each receptacle 280 is coaxially aligned with the corresponding tubular section, the receptacle 280 is also arranged so that each receptacle 280 is concentric in the center of the square base panel section that includes the receptacle 280. Similar to the building block 100, a helical thread 246 of the same characteristics is formed on the inner surface of the cylindrical wall 242 that defines the tubular portion 240. Other features of the building block 200 are the same as those of the building block 100. Accordingly, the above description of building block 100 refers to the same or equivalent feature numbers added at 100 for brevity, and should be modified and applied appropriately to building block 200 where necessary. Is incorporated herein by reference.

  The building block 300 shown in FIG. 3 is substantially identical to the building block 200 except that the building block 300 has a curved end. The curved end is a curved cutting site at the elongated end of the building block 200 and the side panel is concentric with the tubular portion 340 or the cylindrical wall 342 defining the tubular portion at the curved end. The curved end of the building block may be used to form part of the hinge of the structure, described below. Otherwise, other features of the building block 300 are the same as those of the building block 200, and the above description regarding the building block 200 is the same or equivalent of the building block 200 added at 100 for brevity. Reference is made to feature numbers, and where applicable, is incorporated herein by changing and applying appropriately.

  The building block 400 shown in FIG. 4 is a building block except that the rectangular base panel 420 has a length-to-width aspect ratio of 3: 1 and the width is the same as the building blocks 100, 200, 300. 200. Further, the three tubular portions 440 are arranged at equal intervals along the center line of the rectangular base panel 420, the separation distance between the adjacent tubular portions 440 is equal, and the width of the base panel 120 of the building block 100 is Is equal to Similarly, the rectangular panel 420 can be viewed as an array of three square base panel portions joined along a longitudinal centerline, and each one of the tubular portions 440 includes a square that includes the tubular portion 440. It is arranged at the center of the base panel. Otherwise, the features of building block 400 are the same as those of building block 200. Accordingly, the above description of building block 200 refers to the same or equivalent feature numbers of building block 200 added at 200 for the sake of brevity, and should be modified and applied as appropriate. Is incorporated herein by reference.

  The building block 500 shown in FIG. 5 has a building block 400 except that the rectangular base panel 520 has a length-to-width aspect ratio of 4: 1 compared to the 3: 1 aspect ratio of the building block 400. Is the same. Further, a total of four tubular portions 540 are arranged at equal intervals along the center line of the rectangular base panel 520, and the separation distance between adjacent tubular portions is equal. Otherwise, the features of building block 500 are identical to those of building block 400, so the above description of building block 400 refers to the same or equivalent feature numbers added at 100 for brevity. And the place which should be changed is used here by changing and applying appropriately.

  It should be noted from the above that the building blocks 100, 200, 300, 400 and 500 are all distributed in a regular linear array of 1 × n along the longitudinal axis with a constant separation. The Here, n is an integer. Although n can take any integer, it is usually preferred that n is 10 or less for most practical applications.

  The building block 600 shown in FIGS. 6 and 6A-6D is a plastic molded body defining a base panel 620; four tubular sections each projecting upward from the base panel 620 and having a thread section molded into the tubular section. 640; an outer peripheral skirt 660 projecting downward from the base panel 620 and surrounding the base panel 620; and four receptacles 680 each defined by a partition structure comprising a plurality of perpendicularly extending partition panels 682 inside the outer peripheral skirt 660. . Each of the tubular portions 640 and each of the receptacles 680 are identical to those described herein with respect to the building block 100 and the building block 200, and descriptions of common features are incorporated herein by reference. The base panel 620 is square and has a length-width aspect ratio of 2: 2, and the width of the base panel 620 is twice the width of the base panel 120. By having an aspect ratio of 2: 2, the base panel 620 can be thought of as an array of four square base panels 120 of the building block 100, and each one of the four tubular sections 640 includes a square that contains it. Concentric at the center of the panel. Similarly, each one of the four receptacles 680 is concentric in the center of the square panel portion that contains it. Each receptacle 680 is coaxially aligned with a corresponding tubular portion 640 contained within the same square panel portion, even on both sides of the base panel 620. Tubular portion 640 and receptacle 680 are distributed in a regular 2 × 2 matrix of equal separation. Otherwise, other features of building block 600 are the same as those of building block 200 and the above description of common features is the same or equivalent of building block 200 added at 400 for the sake of brevity. Reference is made to feature numbers, and where applicable, is incorporated herein by changing and applying appropriately. In one view, the building block 600 can be considered to be formed by joining the longitudinal sides of the two pieces of the building block 200 at the longitudinally aligned ends.

  The building block 700 shown in FIGS. 7, 7 </ b> A, and 7 </ b> B is formed as an insert (insert) 790 for incorporation on the tubular portion 740, although the screw portion is not integrally formed on the cylindrical wall of the tubular portion. Is the same as the building block 600. The insert 790 includes a plastic molded body such as a hollow plug having a boss 792 having an enlarged base region, and a tubular portion 794 projecting upward or perpendicular from the boss. A helical thread 746 is integrally formed within a cylindrical wall 742 that defines the tubular portion 740, and the helical thread 746 is similar to that described above for the other building blocks. The insert 790 is mounted on the base panel 720 by welding, bonding, fusing, gluing or other adhesive means. As with the other examples, it has less than a complete number of turns to help simple molding. The boss portion is configured such that its horizontal dimension exceeds the clearance (spatial distance) on the bottom entrance side of the tubular portion 740 of the building block 700, and the tubular port 794 of the insert 790 is fitted into the tubular portion 740. Sometimes the boss 792 is held below the base panel 720.

  To assemble the building block 700, a plug-shaped insert member is inserted from the underside of the building block, the tubular portion enters the hole in the tubular portion 740 molded on the building block 700, and the boss portion is the tubular portion 740. Below. After the tubular portion is fully inserted into the through hole, the boss portion stops moving further into the tubular portion of the building block and the insert is secured to the underside of the base panel to complete the assembly. Apart from having an integrated insert member, the building block 700 is identical to the building block 600. Accordingly, the above description of building block 600 is incorporated herein by reference to the same or equivalent feature numbers added at 100 for brevity.

  The building block 800 shown in FIGS. 8 and 8A to 8D has a base panel 820 having a width twice the width of the base panel 120 of the building block 100 and a length-to-width aspect ratio of 4: 2 (compared to construction The block 500 has an aspect ratio of 4: 1, the building block 600 has an aspect ratio of 2: 2, and the tubular portion (or fitting protrusion) is a regular 4 × 2 matrix (in comparison, the building block). All are the same as building block 500 or building block 600 except that 500 is distributed in a regular 4 × 1 matrix and building block 600 is distributed in a regular 2 × 2 matrix. In practical terms, the building block 800 is considered to be formed from two building block 500 pieces by joining the longitudinal sides together at the aligned longitudinal ends, or an aligned corresponding. It can be viewed as being formed of two building block 600 pieces by joining the ends together and the corresponding sides. Otherwise, the features of building block 800 are the same as those of building blocks 500 and 600, and the above description regarding building blocks 500 and 600 is the same or equivalent added at 300 and 200, respectively, for brevity. Reference is made to feature numbers, and where applicable, is incorporated herein by changing and applying appropriately.

  While the above examples have been made with reference to building blocks having upper mating projections and corresponding receptacles arranged in various arrays or matrix arrangements, the various building blocks described herein can be used without loss of generality. It is recognized that the mating protrusions and the corresponding receptacles can be arranged in any regular m × n matrix (m and n are arbitrary integers). Furthermore, although one helical thread has been used as an example of a threaded portion, it will be appreciated that multiple threads can be employed.

  Building blocks of the type described above are commonly used for assembly into various structures. Structures constructed from such building blocks are typically assembled from multiple building blocks by connecting both horizontal and vertical building blocks. When assembling a structure from building blocks having complementary mating surfaces, such blocks comprise the complementary or compatible upper and lower mating portions described above, with the upper mating portion of one building block being The building block is assembled so that it is fully inserted into the lower mating part of another building block. Thereby, as a result, frictional engagement is formed between adjacent building blocks when the corresponding fittings are engaged. However, such a connection is only by frictional engagement and is not fixed as a whole.

  A building block fixture (fastener) 900 shown in FIGS. 9 and 9A is provided to help connect the building blocks beyond just frictional engagement, thereby enhancing structural integrity or stability. . The building block fixture 900 includes a head portion 910, an end portion 920, and a shaft portion 930 that connects the head portion and the end portion. The building block fixture, in use, has the head portion 910 fixed to the first part of the first (connection source) building block, the end 920 fixed to the second part of the second (connection destination) building block, and The shaft portion 930 is configured to extend between the first portion of the first building block and the second portion of the second building block that is not constrained by the building block.

  The head portion 910 of the fixture is configured to be fixed (supported) to the first building block during use or to press the first building block, and includes a boss portion. The boss is stopped by the cylindrical wall of the tubular portion of the source building block and is configured to prevent the boss from moving through the tubular portion during the connection process. Has an extension. The boss portion includes a flange extending around the flange, and the flange rides on the top end of the cylindrical wall during use when the head portion of the fixture is fixed to a building block having the cylindrical wall; and It is comprised so that it may act with respect to a top end part. When the head portion 910 is secured to the first building block, it only acts on the first building block by crimping and initiates a threaded or other locking engagement with the first building block. There is no.

The shaft portion 930 includes a long shaft body, and the long shaft body is configured to pass through the first and second building blocks and not to be restrained or engaged by these building blocks. The very narrow passage in the tubular portion is determined by the clearance defined by the helical thread of the fastening device, and the elongated body of the shaft portion 930 is traversed by the shaft portion through the free and unconstrained minimal passage. Has acceptable dimensions. In this embodiment, the shaft portion 930 is cylindrical and has a uniform cross section throughout its length, and the shaft portion 930 cross section is such that the shaft portion is released from the building block through which the shaft portion 930 passes. Configured. On the other hand, the diameter of the shaft portion 930 is slightly smaller than the clearance diameter necessary to assist in sufficiently strong fixation. The shaft portion 930 needs to pass through a first building block (on which the head portion of the fixture is fixed freely or unconstrained), and the length L ₁ of the shaft portion is determined by the head portion 910. Must be long enough to bypass the fastening fixture of the first building block when secured to the first building block. On the other hand, the total length (L ₁ + L ₃ ) of the shaft body portion 930 and the screw portion 920 allows for further tightening when the head portion 910 is fixed to the first building block for the helical screw thread of the screw portion 920. And the length (L ₃ ) of the screw thread portion 920 of the fastener is configured so that it needs to be sufficient to proceed to engagement with the fastening device of the second or connected building block. To screw portion 920 is not mutual or engage relates to fastening fixation device of construction blocks other than the construction blocks of a second or connection destination, the length L ₃ may be any sufficient to 2-3 turns of helix thread.

  The end 920 comprises engagement means configured to form a releasable engagement with a fastening device formed on the second connected building block. The end 920 is configured to engage a fastening device formed in the tubular portion of the connected building block to aid in fixation. The end portion 920 is obstructed by the fastening and fixing device, but freely slides (slids) in and out of the tubular portion. On the other hand, the engaging means can be moved into the fastening and fixing device at the time of rotational contact with it.

  In the present embodiment, the engaging means is a screw portion (146, 246, ..., 846) of the fastening and fixing device formed in the through hole of the upper fitting convex portion (142, 242, ..., 842). And a threaded portion having a plurality of helical threads that are compatible with the helical threads of the fastening device. The spiral thread of the screw end 920 protrudes from the shaft main body having the same cross section as the shaft 930. In this embodiment, the fixture 900 is integrally formed from hard plastic and the spiral thread is formed at a time.

  The pitch of the screw part 920 is such that the corresponding screw part (146, 246, ..., 846) in the through hole of the upper fitting convex part formed by the tubular part (142, 242, ..., 842). The same as that and assists in complementary threaded engagement. The engaging means of the fixture is configured to form a tight close engagement with the female screw formed in the through hole of the upper fitting convex portion of the connected building block. In order to assist in tight close engagement of the fixture to the fastening device of the connected building block, the outer diameter of the screw portion of the fixture engagement means is defined by the helical thread of the tubular portion of the building block. It is larger than the clearance diameter, and is the same as or slightly smaller than the diameter of the through hole defined by the cylindrical wall defining the tubular portion. Similarly, the inner diameter of the screw portion of the fixture is the same as or slightly smaller than the inner diameter of the female screw of the fastening and fixing device.

The building block fixture 1000 shown in FIGS. 10 and 10A is obtained by elongating the fixture 900, and the length of the shaft portion (L ₂ ) is substantially longer than L ₁ . More specifically, the difference in length (L ₂ −L ₁ ) is equal to a multiple (n) of the separation distance between the two directly deposited building block threads. Here, n is an integer, for example, 1-10. When the fixture has a longer shaft body, one or more building blocks during the fitting connection, the first (connection source) building block to which the fixture head 1010 is fixed, and the end of the fixture It can be inserted between the second connected building block to which 1020 is fixed. Otherwise, the features of the fixture 1000 are the same as the fixture 900 of the first example, and the above description regarding the fixture 900 uses the same or equivalent feature numbers added at 100 for brevity. Which is incorporated herein by reference.

  The building block fixture 1000 shown in FIGS. 10 and 10A includes a head portion 1010, an end portion 1020, and a shaft portion 1030 that connects the head portion and the end portion. Instead of a helical thread, the end 1020 comprises a plurality of radially projecting studs distributed on the outer periphery on the end of the fixture. Otherwise, the features of the fixture 1000 are the same as the fixture 900 of the first example, and the above description regarding the fixture 900 uses the same or equivalent feature numbers added at 200 for brevity. Which is incorporated herein by reference.

  In another fixture embodiment (not shown), the head portion of the fixture is receivable within the bore of the tubular portion of the connecting building block without being obstructed by a fastening device in the tubular portion. Composed. In this configuration, the head portion may be flush with the cylindrical wall (just overlap), or may be below the cylindrical wall, and only by pressure contact without screw engagement, but the head portion is the first It is fixed to the fastening device of the building block. The exemplary fixture described is integrally molded from hard plastic with a helical thread projecting from a shaft body having a horizontal dimension equal to the inner diameter of the helical thread. It will be appreciated that the fixture can be formed from metal or other moldable material without loss of generality.

  12, 12A-12D show an exemplary structure 1180 comprising three building blocks (800, 600, 200) connected by fasteners (900, 1000). In this example, the 2 × 1 building block 200 of FIG. 2 having two in-line tubular portions is stacked on the 2 × 2 building block 600 of FIG. A 2 × 2 building block 600 having four tubular portions arranged in a 2 × 2 regular matrix is stacked on the 4 × 2 building block 800 of FIG. 8 having eight tubular portions arranged in a 4 × 2 regular matrix. Are fitted and connected. When two building blocks are stacked in a mated and connected state to form part of the structure of the present application, the upper mating portion of the lower building block (with the mating protrusion) is below the upper building block. The mating part (including the receptacle) is completely received in a tightly adhered state. In this state, the bottom edge of the peripheral skirt of the upper building block is placed directly on and supported by the upper surface of the lower building block base panel.

  As shown in FIGS. 12C and 12D, fixture 1000 is used to provide a clamped connection between stacked building blocks 200, 600, and 800, while building block 600 and another fixture 900 are stacked. Used to provide a fastened connection between 800.

  As shown in FIG. 12D, the head portion of the fixture 900 is fixed to the building block 600 by pressure contact with the cylindrical wall. At this time, the outer peripheral flange of the head portion 910 is directly on the top end portion of the cylindrical wall 642 of the tubular portion 640. The end portion 920 of the fixture 900 engages the lower building block 800 by screw-type engagement means between the second helical thread at the end 920 of the fixture 900 and the helical screw 846 of the building block 800. . Furthermore, the shaft portion 930 of the fixture 900 passes through the screw portion 646 of the fastening device of the building block 600 in a free or unconstrained state.

  As shown in FIG. 12C, the head portion of the fixture 1000 is fixed to the building block 200, and the outer peripheral flange of the head portion 1010 is placed directly on the top end of the cylindrical wall 242 of the tubular portion 240. The end 1020 of the fixture 1000 is engaged with the lower building block 800 by screw-type engagement means between the second helical thread at the end 1020 of the fixture 1000 and one helical screw 846 of the building block 800. Match. Further, the shaft portion 1030 of the fixture 1000 passes through the screw portions 246 and 646 of the two building blocks 200 and 600 in a free or unconstrained state.

  The application of building block fixtures to providing a rigid connection of building blocks is described below.

  After the three building blocks (800, 600, 200) have been stacked on adjacent building blocks in a mating connection, the user inserts the end 920 into the opening 644 of the tubular portion 640 to create the building block 600 and In order to lock 800, a fixture 900 is applied. When the radially projecting thread of the end 920 of the fixture 900 contacts the thread 646 of the building block 600 during the shaft insertion process, the user can rotate the fixture about its shaft axis. It is necessary to fit and get over the thread of the threaded portion 646 of the building block 600 to form a further axial advance for the next building block 800. This is because the screw-type engaging means at the end of the fixture 900 exceeds the clearance hole in the tubular portion. After the screw end 920 passes through the screw portion 646 of the building block 600, the shaft portion 930 of the fixture 900 freely slides and / or rotates with respect to the screw portion 646, and the screw of the building block 800 of the first layer. It moves relative to the building block 800 until it contacts the part 846. At this time, the user rotates the fixture 900 about its shaft axis to form a threaded engagement with the helical thread 846 of the building block 800 to provide a connection between the two building blocks 600 and 800. It is necessary to. The user can choose to further stiffen the connection between the two building blocks 600 and 800 by further rotating the fixture after the threaded engagement is formed. In this example, the fixture 900 traverses through two building blocks, as well as a threaded engagement with one building block, ie, building block 800.

  Similarly, the user applies the fixture 1000 to tighten the mating connection of the three building blocks 200, 600, and 800. The user first inserts the end 1020 of the fixture 1000 axially into the opening 244 in the tubular portion 240 of the building block 200 to provide a locked connection of the building block. When the radially protruding screw thread at the end 1020 of the fixture 1000 contacts the screw portion 246 of the building block 200 during the axial insertion stroke, the user rotates the fixture 1000 about its shaft axis. And over the thread of the threaded portion 246 of the building block 200 to form a further axial advance relative to the next building block 600. After the screw end portion 1020 of the fixture 1000 passes through the screw portion 646 of the building block 600, the shaft portion 1030 of the fixture 1000 slides in the axial direction with respect to the screw portion 646, whereby the first layer building block. It freely advances with respect to the building block 800 until it contacts the 800 screw portion 846. Then, the user rotates the fixing tool 1000 around the shaft axis again and climbs over the screw thread of the screw part 846 of the building block 800, thereby engaging the screw type engagement with the screw part 846 of the building block 800. Form and secure to building block 800. In this example, the fixture 1000 traverses through all three building blocks, as well as a threaded engagement with one building block, ie, building block 800. The head portion 1010 acts against the building block 200 by press contact so as to make the connection tight. Further, the fixture 1000 is not constrained by the building block 600 interposed in the building blocks 200 and 300.

  In another example, the fixture 1000 can be replaced with another fixture 900, and an assembly comprising three building blocks 200, 600, and 800 is fastened with two identical fixtures 900 in FIG. Is possible. In this alternative, the first fixture 900 is used to fasten the building blocks 200 and 600, and the second fixture 900 is used to fasten the building blocks 600 and 800. This results in a locked connection of all three building blocks.

  For example, as shown in FIGS. 13A and 13B, when the fixture 1110 of FIG. 11 is used to form an assembly 1190 with a building block 800, the “screw end” of the fixture without loss of generality. Is replaced by the expression “stud end” of the fixture 1100, and the application is substantially the same, and the description above regarding the application (use) of the fixture is incorporated herein.

  The stack of building blocks 1190 in FIG. 13 includes a first building block 800-1, and a second building block 800-2 is stacked on the first building block 800-1, and a sub-block of the building block structure is included. Form an example of an assembly. By stacking the first and second building blocks, the upper fitting portion of the first building block 800-1 is completely received by the lower fitting portion and surrounded by the outer peripheral skirt of the second building block. The lower mating portion of the building block 800 includes eight mating receptacles 880 arranged in a regular 2 × 4 matrix as shown in FIG. 8B. As shown in FIG. 13C, four-piece fixtures 1100-1 to 1100-4 are used to connect the first building block 800-1 and the second building block 800-2. And half of the upper fitting convex part of the second building block 800-2 remains unoccupied by the intermediate block fixture. The four fixtures 1100-1 to 1100-4 are arranged so that there are two fixtures in each row and only one fixture in each column in order to more evenly distribute the coupling force of the fixtures. ing.

  After the subassembly comprising building blocks 800-1 and 800-2 has been formed, the third building block 800 is similar to the second building block 800-2 being stacked on the first building block 800-1. -3 is stacked on the subassembly 1190. Four fasteners 1100-5 to 1100-8 are used to lock the third building block to the subassembly 1190. The four fittings 1100-5 to 1100-8 are inserted into the through holes of the four upper fitting protrusions of the third building block 800-3, so that the upper fitting of the building block 800-2 immediately below is inserted. It engages with a fastening and fixing device formed on the convex portion. To meet this requirement, a fixture is inserted into the four upper mating projections of the third building block 800-3, and the four upper mating projections of the third building block 800-3 are shown in FIG. 13C. Corresponding to the four upper fitting convexities of the second building block 800-2 not occupied by the four fixtures 1100-1 to 1100-4 as shown. The four fixtures 1100-5 to 1100-8 are then locked in the second building block by engaging an unoccupied fastening device formed thereon, and three buildings in a stacked state. Forming a building block assembly comprising the block;

  As shown in FIGS. 13D and 13E, the heads of fixtures 1100-1 to 1100-4 protrude above the upper mating projections of the building block and the fixtures above the second building block 800-2. The projection is well received by the mating receptacle and is configured not to press the top of the mating receptacle of the building block 800-3 when connected.

  Various shaft length fixtures 1100 were used to connect building blocks 800-1 to 800-3, but interchangeable fixtures 900 and longer shaft configurations 1000 without loss of generality. It can be recognized that it can be used.

  When the head portions of the fixtures 900, 1000 and 1100 are configured to be receivable in the tubular portion and held by the female screw in the inner hole, the head portion is positioned above the corresponding upper fitting convex portion. Does not protrude. This is preferred for some applications.

  It should also be appreciated that fewer fixtures can be used when eight fixtures are used to connect an assembly comprising the three 2 × 4 building blocks of FIG. 13B. For example, two fixtures 1100 may be inserted into the upper mating projection at the diagonal ends of the building block 800-2 to connect to the building block 800-1. Also, another two fixtures 1100 for connecting between the building blocks 800-2 and 800-3 remain at the other diagonal end of the building block 800-2 to distribute the fastening force. You may occupy a fitting convex part.

  When fixtures having various lengths of shaft portions are used, for example, fixtures having shaft portions that are long enough to connect the first 800-1 and the third 800-3 are the first. When used in combination with a fixture having a sufficiently long shaft to connect the 800-1 and second 800-2 building blocks, fewer fixtures can be used and pull The fixture distribution can be selected to meet force and / or load requirements.

  Further, in FIG. 13B, three identical building blocks were used to illustrate the example structure of the building block, but without losing generality the building block with various arrays or matrices of upper mating projections. It is recognized that they can be used in combination. Furthermore, the head part of the fixture is axially arranged below the through-hole of the upper fitting convex part of the building block directly above, so that the head part can be accessed from above to tighten and loosen the connection. is there. For example, building block 800-1 can be released or clamped from the assembly of FIG. 13B by accessing through the tubular portion of building block 800-3 without first removing building block 800-3.

  The desk 1200 of FIG. 14 is an exemplary modular structure constructed from building blocks and fixtures in accordance with the present disclosure. As an example of furniture, the desk includes a desk top surface 1288, a left side support (support) 1290, a right side support 1292, a center support 1294, an upper drawer 1296, and a lower drawer 1298.

  The desk top surface is assembled from a plurality of 2 × 1 building blocks 300, a plurality of 3 × 1 building blocks 400 and a plurality of 4 × 1 building blocks 500 having curved ends. The horizontal desk top surface is formed in an integrated manner by the long side panels 362, 462, 562 of the outer skirt of the building block, except when there is a transitional connection. Where there is a transient connection, the portion of the transitioning part that contributes to the desk top surface is either from the short side panel or the curved side panel of the building block. There are two types of transitional connections on the top surface of the desk: the first type is an L-shaped transient connection with a curved corner, and the second type is a T-shaped transient. Concatenation.

  The first type of transitional connection is a curved edge formed at the extreme of the desk top. This transitional connection aids a curved transition from the horizontal top edge of the desk to the vertical support. The edge portion is formed in an integrated manner by a plurality of building blocks 300. The long axes of adjacent building blocks 300 are at right angles to each other to facilitate an L-shaped transition from the horizontal desk top surface to the vertical support surface (eg, left or right support). The building block 300 is assembled. The edge of the desk top surface is contributed by the curved side panel ensemble of the building block 300 and is configured to form a smooth edge.

  The second type of transitional connection is a “T” shaped connection, which forms a T-shaped transition from the horizontal desk top surface to the vertical support at extreme intermediate positions on the desk top surface. Provided. The “T” shaped connection is formed in an integrated manner with a plurality of building blocks 400. The plurality of building blocks are then adapted to facilitate a T-shaped transition from a horizontal desk top surface to a vertical support surface (eg, central support) by the long axes of adjacent building blocks 400 being perpendicular to each other. 400 is assembled.

  In this second type of connection, the upper mating projection of one longitudinal end of a building block is mated to a receptacle in the middle of an adjacent building block, thereby allowing a “T” shaped transition sub-assembly. Form. An intermediate receptacle in this context means a receptacle that is in the middle of another receptacle so that there is at least one receptacle adjacent to each side of the intermediate receptacle of the same building block.

  As shown in FIG. 14A, another row of desk tops that form the building block is secured directly to the curved edges that form part of the vertical support and the transitions of the edges that form part of the vertical support The row of the top of the desk that forms the building block that is not directly connected to the current building block is fixed to the adjacent row of building blocks that are directly connected to the transitional building block at the edge. This helps form a sturdy desk top. Similarly, another row of building blocks that form a “T” shaped transition is secured directly to a non-transient building block that forms a desk top surface, and a non-transient building block is shown in the figure. Thus, it is fixed to one by various fixing tools.

  As shown in FIGS. 14A-14C, the building blocks forming the various parts of the desk are connected at different locations by fixtures of different shaft lengths to form the complex structure of FIG. Easy connection of building blocks with mating connection.

  FIGS. 15-15L show the various layers of the desk drawer of FIG. 14 and the fixtures used to connect the various layers. It should be noted that the three-dimensional structure having a plurality of orthogonally arranged building blocks illustrates from the drawer that it can be assembled and connected by using the fixtures and building blocks described herein. .

  In one example, even if the desk is configured such that the desk top surface is only hingedly connected with a curved edge, and the desk top surface is movable around a hinge defined by a curved portion of the building block. Good. In such a configuration, the desk top surface is not secured to a central support or other vertical support. Further, the fixture may be either a building block having a horizontal flat side panel surface or a building block having a vertical flat side panel surface (both to help hinged movement of the desk top surface relative to the vertical support (both It may only be to form a screw-type engagement with

  16-19 illustrate various connection variations of the building blocks disclosed herein. 16, 16A and 16B, except that the fixture is inserted from the side of the lower mating portion of the lower building block for engagement with the fastening device of the upper building block. Thus, the building blocks are stacked in the same manner as in FIG. As shown in FIG. 16B, the fixture head is received in a mating receptacle and the end of the fixture is in the tubular section of the upper building block.

  In the assemblies shown in FIGS. 17, 17A and 17B, the building blocks are stacked such that the mating projections of adjacent building blocks are opposite and in an adjacent state. A fixture is inserted from the side of the lower fitting portion of the building block on one side for engagement with the fastening device of the building block on the other side.

  In the assemblies shown in FIGS. 18, 18A and 18B, building blocks are stacked such that the lower mating portions of adjacent building blocks are opposite and in an adjacent state. A fixture is inserted from the side of the upper fitting portion of the building block on one side for engagement with the fastening device of the building block on the other side. In this modification, when the fastening and fixing device is further away from the part of the building block that stops the head portion of the fixture, a fixture having a longer shaft portion is required.

  In the above example, it has been described that various forms and configurations of structures can be constructed from building blocks and can be maintained using fasteners of the type described herein. Such versatility is possible. This is because when the building blocks are fitted and connected, the fixture allows the building blocks to be connected by screw engagement regardless of the relative orientation of the building blocks. For example, this fixture allows the fixing of intermediate building blocks, although the two building blocks will be parallel or perpendicular. This is because the shaft portion of the fixture is not limited in axial movement by any of the building blocks. Providing rotational engagement means only at one end of the fixture, such that the fixture only advances into engagement (eg, threaded engagement) with only one fastening fixture of the connected building block. Thus, the building blocks can be connected regardless of the orientation (orientation) of the alignment.

  While embodiments of the present invention have been described with reference to the above examples, the embodiments are non-limiting examples for describing the present invention and are construed to limit the technical scope of the present invention. Should not. Although the exemplary building block described includes less than one full screw thread, it will be appreciated that the screw may include multiple threads without loss of generality. For example, a linear recess extending in a direction parallel to the hole axis of the upper fitting protrusion is obtained by aligning the gap between the turns of adjacent threads with each successive screw thread being less than one complete turn. The plurality of screw windings may be half-ends so that the gap is collectively defined. Further, while the exemplary building blocks described above are molded or formed from hard plastic, without loss of generality, the building blocks can be molded from concrete, metal or other moldable materials, or wood. Alternatively, it can be formed from a non-moldable material such as a metal element.

Claims (24)

A building block comprising a first fitting portion and a second fitting portion that are complementary on both sides,
The first fitting portion includes a fitting convex portion that defines a through hole extending in the axial direction, and the second fitting portion includes a fitting receptacle extending in the axial direction that is complementary to the fitting convex portion. The fitting protrusion and the fitting receptacle are aligned in the axial direction and extend in the opposite direction;
A fastening and fixing device configured to allow the fitting convex portion and the fitting receptacle to communicate with each other through the through hole and to engage with an engaging means of a fixture, the convex portion defining the through hole. Is formed inside the
The through-hole is configured to allow axial insertion of the engagement means of the fixture into the fitting convex portion, and the fixture is rotationally coupled to the fastening and fixing device. contact the engaging means is by Uni configuration that match engagement with the fastening fixing device to obtain a forward movement of the axial direction over the obstructed by,
The fixture is configured to connect the first building block, the second building block, and a third building block, the third building block being between the first and second building blocks;
The third building block includes a first fitting portion and a second fitting portion, and the second fitting portion is complementary to the first fitting portion, and the first fitting portion and the second fitting portion. The fitting portions are on both sides of the building block, and communicate with each other through a through hole penetrating the first and second fitting portions.
A shaft portion of the fixture extends between the fastening and fixing devices of the first and second building blocks, and freely slides along the through holes of the first and second building blocks. Building block. The fixture head portion, the end portion having said engaging means, and, with the shaft portion between the engaging means and the head portion,
The building block according to claim 1, wherein the through hole and the fastening and fixing device are configured to allow free sliding movement of the shaft portion of the fixture. The building block according to claim 2 , wherein the tubular fitting convex portion is configured to prevent the head portion of the fixture from entering the through hole.   The fitting receptacle is complementary to the assembly including the fitting projection, and the head portion of the fixture protrudes above the fitting projection and is used by the fitting projection during use. The building block according to claim 1, wherein the building block is blocked.   The fastening and fixing device includes an overhanging portion that protrudes radially inward from a portion of the fitting convex portion that defines the through hole, and defines a second opening inside the through hole, wherein the second opening is 2. A large enough size to allow sliding movement of the shaft portion of the fixture, but not so large as to allow sliding movement of the engagement means of the fixture. To 5. The building block according to any one of 4.   6. The building block of claim 5, wherein the overhang has less than one complete turn. The through hole is defined by an inner wall of the fitting convex portion , and a portion of the fastening and fixing device configured to prevent the engaging means of the fixture has a second opening having a smaller clearance dimension. The building block according to claim 5, wherein the building block projects radially inward from the inner wall as defined.   The portion of the fastening and fixing device configured to obstruct the engaging means of the fixture comprises a helical thread having at least one thread, the at least one thread being coaxial with the through hole. The building block according to any one of claims 1 to 7, wherein the building block protrudes inward from the inside of the convex portion that defines the through hole with a screw shaft. The part of the said fastening fixing device comprised so that the said engaging means of the said fixing tool might be prevented is integrally molded by the said fitting convex part , It is any one of Claim 1 to 8 characterized by the above-mentioned. The building block described.   The first fitting portion includes a plurality of fitting protrusions distributed in a regular array or a regular matrix, and the second fitting portion is a regular array or a regular matrix. A plurality of corresponding mating receptacles distributed, wherein the mating projections of the first mating portion are axially aligned with the corresponding mating mating receptacles of the second mating portion; A building block according to any one of claims 1 to 9, characterized in that A building block fixture configured to connect a plurality of building blocks according to claim 1,
The plurality of building blocks include a first building block and a second building block;
The fixture includes a head part, an end part provided with an engaging means, and a shaft part connecting the head part and the end part,
The engaging means of the end is hindered by the fastening and fixing device, but by rotating into the fastening and fixing device, when the obstacle is overcome, an axial advance is obtained to engage with the fastening and fixing device. The shaft portion is configured to pass through the building block without being constrained or engaged from axial movement, and the head portion is blocked by the first building block. is configured to,
When the building block is connected, the head portion is blocked by the first building block and acts on the first building block, and the engaging means is connected to the fastening and fixing device of the second building block. A building block fixture that engages and the shaft portion passes through the fastening device of the first building block without being engaged therewith . After the fixture initially connects the first building block and the second building block, the engagement means of the fixture is configured to form a further engagement with the fastening device of the second building block. The fixture of claim 11 further comprising further rotating about a shaft axis to stiffen the connection between the first building block and the second building block. When the engaging means rotates around the shaft axis after the shaft portion has passed through the first building block, the engaging means at the end of the fixture is fitted with the second building block. The building block fixture according to claim 12 , wherein the building block fixture is configured to engage in a combined manner or a screw manner. The fastening and fixing device of the first building block by rotating around the shaft portion so that the end of the fixture passes through the first building block and moves into the second building block. When the engagement means of the end of the fixture is configured to require contact with the end, and the end is abutted against the fastening fixture of the second building block The engaging means at the end of the tool is configured to assist in the locking connection of the first and second building blocks by rotation by engaging the fastening device of the second building block; The building block fixture according to claim 12 , wherein: The fastening and fixing device includes a screw portion formed inwardly in the through hole of each building block, and the engaging means of the end portion of the fixing tool is the screw portion of the fastening and fixing device. The fixture according to claim 12 , further comprising a radial protrusion complementary to the first projection. The fixing according to claim 15 , wherein the radial protrusion includes a screw portion having at least one spiral screw thread, and an outer diameter of the spiral screw thread is larger than a diameter of the shaft portion of the fixture. Ingredients. The fixture according to claim 16 , wherein the shaft portion of the fixture adjacent to the end portion is cylindrical, and an inner diameter of the helical thread is equal to a diameter of the cylindrical portion of the fixture. . 16. The fixture according to claim 15 , wherein the radial protrusion includes a plurality of radial protrusion studs distributed evenly around the outer periphery of the end of the fixture. The fixture according to any one of claims 11 to 18 , wherein the shaft portion of the fixture extends between the fastening and fixing devices of the first and second building blocks. The radial protrusion of the engaging means at the end of the fixture in a direction orthogonal to the shaft axis exceeds the clearance of the through hole, and the engaging means is provided on the shaft axis of the fixture. The fixture according to any one of claims 11 to 19 , wherein the fixture is configured to advance in the axial direction through the through hole by rotating around. When the end of the fixture is secured to the second building block, the head portion is always on the first building block to assist in a cooperative connection between the first and second building blocks. The fixture is configured such that the protrusion of the head portion in the radial direction orthogonal to the shaft axis exceeds the clearance of the through hole so as to be hindered by the first fitting portion. The fixture according to any one of claims 11 to 20 . The head portion of the fixture is configured to project over the first building block during use when the first and second building blocks are coupled with the fixture, and the first building first end portion of the fastener, any one of claims 11, characterized in that it is receivable in said second fitting portion of another of said construction blocks 21 protruding above the block Fixing device according to. A plurality of building blocks according to any one of claims 1 to 10 connected by a plurality of fixtures according to any one of claims 11 to 22 ,
The plurality of building blocks include a first building block, the first building block having a regular rectangular array disposed on the second building block and extending in a first array direction, the second building block Has a regular rectangular array extending in a second array direction orthogonal to the first array direction, and connected by the fixture,
The building block is fixed by a fixture having different shaft lengths . Wherein the first fitting portion of one of the building blocks, to be received within said second fitting portion of an adjacent building blocks, to claim 23, wherein the plurality of construction blocks are connected Description structure.

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