Abstract: A method for building large-scale play structures having an ideal modularity is provided.

Abstract: Connection systems for toy construction pieces, toy construction pieces, and toy construction kits. A connection system includes a male connection element and a female connection element. The male connection element includes a peg unit with a connector peg. The female connection element includes at least a portion of a connector core that defines a receiver cavity configured to receive at least a portion of the connector peg and at least a portion of a core shell. A toy construction kit for assembling a constructed assembly includes a plurality of toy construction pieces that collectively embody the connection system. A first construction piece includes the male connection element and a second construction piece includes the female connection element. The connection system is configured to selectively and repeatedly couple the first construction piece and the second construction piece to one another.

Abstract: An angle bar includes two longitudinal angled plate portions, and a corner portion connecting therebetween. The corner portion has an inner corner surface bounding an inner corner space and an outer corner surface. A stopper protrudes into the indented corner space, and has an abutment face extending across the indented corner space. A limiter protrudes into the indented corner space from the inner corner surface, and has a through hole opening in a direction along a bending line of the corner portion. A modular post assembly has at least two angle bars abutting each other, and a fixing rod extending through the through holes of the bars along the bending line and limited between the stoppers for fixing together the bars.

Abstract: The invention relates to children's construction kits for assembling building toys from connecting elements. The technical result is an increase in functional capabilities, permitting the assembly of simple and complex spatial constructions with dynamic properties. This technical result is achieved by virtue of a building toy consisting of a set of flat shape-forming and decorative modular elements made of a flexible resilient material and having fastening elements attached to the surfaces thereof, said fastening elements forming detachable joints capable of holding together connected portions of the surfaces, wherein each of the fastening elements takes the form of the centre of axial rotation of at least the held portion of the surface of a connected modular element, and each of the shape-forming modular elements has on its opposite surfaces at least one coaxial pair of fastening elements which are rigidly interconnected and have oppositely oriented mating surfaces.

Abstract: The modular structures and methods for making and using the same are disclosed herein. The modular device can include one or more support panels, one or more connecting members (also referred to as “bones”) and one or more fasteners. Support panels can be connected together in groups of two or more using the fastener, to provide a frame for the connection to connecting members. The connecting members connect between the support panels, such that groups of support panels can be connected together and extended upon one another. The connecting members connect at receiving ports in the support panels, which receive and affix at least a portion of the connecting member. The support panels generally form the frame of the modular structures, while connecting members connect between the support panels. The interlocking and alternating elements allow for the variety of structures and flexibility described herein.

Abstract: A shelving assembly includes at least one first post having an L-shaped section and including first apertures, two connection members at first ends respectively, and a retainer disposed on an outer surface of each connection member and including a neck and an enlarged head. A second post has an L-shaped section and includes second apertures and two T-shaped aperture members at second ends respectively. A size of the aperture member is greater than a diameter of the head. A length of the aperture member is at least 1.5 times of a diameter of the head. A width of a vertical part of the aperture member is greater than a diameter of the neck and smaller than the diameter of the head. The retainer passes through the aperture member to lock the neck in the vertical part, thereby joining the first and second posts.

Abstract: An aircraft storage bin that includes an upper housing and a bucket that cooperate to define a bin interior. The bucket is movable with respect to the upper housing between open and closed positions and includes a bottom and right and left side panels. The bottom includes lower and upper surfaces and right and left outer edges. The right and left side panels each include a first section having a first transverse width, a second section having a second transverse width, and a transition section that is located between the first and second sections. The second transverse width is less than the first transverse width. At least a portion of the second section of each of the side panels is received in a slot defined in the upper surface of the bottom of the bucket, such that the right and left side panels extend upwardly from the bottom.

Abstract: A connectable element comprising a center piece and a connecting piece. The center piece includes a connecting portion and at least one encircling groove The connecting piece includes an end portion and an eye in a portion. The end portion of the connecting piece is attached to the connecting portion of the center piece. The eye complementarily fits the encircling groove of an adjacent center piece.

Abstract: A building or support structure with several mounting components is disclosed. The support structure has a base that is flexible, which allows the base to be positioned into a variety of different configurations. The mounting components of the base allow different objects, such as building components or figurines, to be coupled thereto. A toy building component includes a main body, projecting portions or posts, and receptacles or receiving areas. Projecting portions extend from one side and receptacles are located in another side of the main body. In one embodiment, the building component includes a first portion of a first material and a second portion of a second material. The different materials have different properties, and in some embodiments, different colors. The portions may be co-molded together to form the building component.

Abstract: Modular frames for instructional use that provide secure mounts for geometric solids are presented. Some contemplated modular frames can be assembled into three dimensional modular devices and are particularly suitable for instructional purposes. Modular devices comprising two or more frames could be coupled via a clip in two or more different configurations. Containers including conductive material and configured to provide a Faraday cage around their contents are also provided.

Abstract: A post coupler includes coupler flanges, reverse bend flanges extending therealong and rounded end projections extending longitudinally from said coupler flanges defining ends of the coupler, the length of the reverse bend flanges being less than the overall coupler length between ends of the rounded end projections.

Abstract: An assembly comprises a first connector attached to a first hollow metal log of a building superstructure; a latch; and a second connector attached to a second hollow metal log of the superstructure. The first connector comprises a slot for receiving a projecting flange of the latch, and the second connector comprises an opening adapted to receive a cam portion of the latch. The projecting flange can be pre-engaged with the slot to form a preassembly. The engagement of the cam with the opening formed in the second connector then forms a final assembly wherein the first connector, the latch, and the second connector are latched together so that the first and second logs are interconnected and made resistant to wind uplift.

Abstract: System and method for assembling blow molded parts without the use of separate fasteners, including a tab-and-slot or dovetail mortise and tenon joint that includes a slide-and-lock tab feature. A retention barb on the tab slides along a ramp to engage with a receptacle within the slot. Tabs and slots can have varying widths to create mutual incompatibility with other joint components that are otherwise similarly constructed. An optional stopper on the tab and corresponding notch within the slot can add an additional axis of incompatibility with other joints throughout the assembly. These features prevent incorrect assembly and allow convenient redesigns.

Abstract: A linking toy segment for pivotal securement to another linking toy segment is disclosed herein, the linking toy segment having: a base structure; an actuatable device secured to the base structure, the actuatable device being capable of movement from a first position to a second position; a first coupling member secured to the base structure and extending away from the base structure in a first direction, the first coupling member being configured to be pivotally received on top of another coupling member; a second coupling member secured to the base structure and extending away from the base structure in a second direction, the first direction being different from the second direction, the second coupling member being configured to be pivotally secured underneath another coupling member; a trigger moveably secured to the base structure proximate to either the first coupling member or the second coupling member, the trigger being pivotally mounted to the base for movement between a first position and a secon

Abstract: A decoration includes a first, lower decoration member and a second, lower decoration member detachably connected to the first, lower decoration member. Each lower decoration member includes a lower main body having first and second lower branch portions and a lower engaging slot in an upper end thereof. The decoration further includes at least one upper decoration member. The upper decoration member includes an upper main body having first and second upper branch portions and an upper engaging slot in a lower end thereof. The lower engaging slots of the first and second lower decoration members are engaged with the upper decoration member, and the upper engaging slot of the upper decoration member is engaged with the first and second lower decoration members. The decoration can be quickly assembled and exhibit a rich visional appearance.

Abstract: Disclosed herein are connectors for panels. In one embodiment a panel connector comprises, a connector comprising a rib-hinging geometry, wherein the rib-hinging geometry comprises living hinges, and wherein the rib-hinging geometry is capable of expanding in area. In another embodiment, a panel assembly is disclosed. The panel assembly comprises, a connector comprising a rib-hinging geometry, wherein the rib-hinging geometry comprises living hinges, a socket comprising an internal geometry, wherein the connector can be assembled to the internal geometry, and wherein the rib-hinging geometry is capable of expanding in area.

Abstract: Disclosed herein are connectors for panels. In one embodiment a panel connector comprises, a connector comprising a rib-hinging geometry, wherein the rib-hinging geometry comprises living hinges, and wherein the rib-hinging geometry is capable of expanding in area. In another embodiment, a panel assembly is disclosed. The panel assembly comprises, a connector comprising a rib-hinging geometry, wherein the rib-hinging geometry comprises living hinges, a socket comprising an internal geometry, wherein the connector can be assembled to the internal geometry, and wherein the rib-hinging geometry is capable of expanding in area.

Abstract: An interlocking tile system comprises tiles that has a body, interlocking cap structure with a first surface and a second surface; a first curved portion connecting the first surface with a radius of R1 to the second engaging surface with a radius of R2, wherein R1>R2; and a stem supporting the cap structure. The cap is a mushroom-like shape. Such configuration of the connector aids in installation by lessening instances of binding and align and guide the caps into their corresponding receiving areas. The tiles are preferably square, and are connected along all four sides.

Abstract: A modular system for forming without tools a variety of 3-dimensional structures comprises panels (10), and connectors (13, 14), and locking bridging members (30) for assembling the panels (10) together in a desired configuration. The panels can be disconnected so that the erected structure can be disassembled with ease for future reuse. The system can be used to erect children's playhouses made of polymer materials, as well as in a large variety of other applications to create 3-dimensional objects requiring rapid positive construction without tools.

Abstract: The present invention provides a system, or kit, of injection molded panels having integrated connectors which combine to form an enclosure, commonly in the form of a utility shed. The panels are formed of injection molded plastic to interlock with one another without the need for separate I-beam connectors. The ends of the wall panels have cavities to accept both roof and floor outwardly projecting locking bosses for interlocking cooperative engagement which serve to rigidly connect the components together. The symmetry of the wall, roof, floor and door components also minimizes component shapes and simplifies enclosure construction.

Abstract: A geometric construction system includes: a plurality of flat panels; and a plurality of connecting units provided on side edges of the flat panels. Each connecting unit includes first and second engaging parts. The first engaging part is formed with a protrusion, and the second engaging part is formed with a recess such that the protrusion of the first engaging part on one of the flat panels is releasably engageable with the recess of the second engaging part on another of the flat panels. The second engaging part is further formed with resilient claws that project from a periphery of the recess. The claws of the second engaging part on one of the flat panels clamp resiliently the protusion of the first engaging part on another of the flat panels when the protrusion is moved into the recess of the second engaging part.

Abstract: Techniques are described for constructing geodesic dome structures. For example, a method includes connecting a set of panels to form a geodesic dome. The panels have surface contours that conform to a surface contour of a geodesic dome having a dimension larger than a dimension of the geodesic dome formed by the panels. Another method includes attaching flanges to a set of permanent structure members that form a permanent geodesic dome structure. The method further includes fastening a set of panels to the flanges. The panels enclose the geodesic dome structure to form the geodesic dome. The techniques described may allow the construction of a geodesic dome structure of precisely controlled dimensions with relatively small numbers of people and little strenuous labor.

Abstract: A house-building toy comprises element blocks that include floor foundation blocks (2) functioning as the foundation of a house model and structuring a floor portion of the house model, wall blocks (3) structuring a wall portion of the house model, roof blocks (4) structuring a roof portion of the house model, and floor panel blocks (5) structuring on the floor foundation blocks (2) the ground and a floor surface in the house. Hole portions communicating with the element blocks are formed at joints between the floor foundation blocks (2) and the wall blocks (3) and at joints between the floor foundation blocks (2) and the roof blocks (4). Wires (W) for supplying electricity, for example, for lighting are laid from the outside to the inside of the house model.

Abstract: A multi-facet decoration assembly is provided, comprising multiple polygonal grates with equilateral sides. Each corner of the polygonal grate has one catch pin and one slot pin disposed on the underside. This unique decoration ball assembly can be easily assembled by snapping multiple polygonal grates together so that all catch pins and slot pins on all polygonal grates are locked against each other. The decoration ball can be easily stored away when the polygonal grates and the panels are knocked down occupying only a small space, thus the storage and transportation costs can be reduced considerably.

Abstract: A housing structure includes a first plurality of wall panels which form a lower course and a second plurality of wall panels which form an upper course. Each of the wall portions is generally rectangular and includes integrally formed interlocking portions which facilitate attachment of adjacent lateral edges of the wall portions of the first plurality to each other. Integrally formed interlocking portions facilitate attachment of the panels in the lower course to the panels in the upper course. In addition, rectangular roof panels are provided to enclose the housing structure. The interlocking portions enable the panels to slide into an interlocked engagement configuration thereby forming a rigid structure without the need for tools.

Abstract: Techniques are described for constructing geodesic dome structures. For example, a method includes connecting a set of temporary spacers to a set of connectors. The spacers arrange the connectors in space so that the connectors are referenced with respect to one another to form the geometries of a geodesic dome. The method may further include making the temporary geodesic dome structure permanent. The techniques described may allow the construction of a geodesic dome structure of precisely controlled dimensions with relatively small numbers of people and little strenuous labor.

Abstract: A stackable building wall unit adapted to be stacked with a plurality of identical building wall units in a plane to form a wall comprising three rectangular panels each including inner and outer faces, a pair of spaced apart long edges, and a pair of spaced apart short edges joined to the short edges of the other two panels to form a triangular, stackable building wall unit which can be stacked with the exterior surfaces of the panels in abutting relation. The exterior face of at least one of the panels includes a female recess therein for receiving a complementally formed key to facilitate alignment and preclude relative shifting of the stacked units in a direction extending between said long edges between the long edges. The key may suitably comprise a complementally formed male projection extending outwardly from another panel of an abutting unit.

Abstract: An interlockable element for a structure assembly set includes an at least partially planar body and a connector edge having associated therewith a first A-type and B-type connector pair disposed about a first axis of rotation and a second A-type and B-type connector pair disposed about a second axis of rotation. The first and second axes of rotation are disposed on opposing sides of a generally rectangular quadrilateral of a specified dimension. Each of one pair of diagonally opposite vertices of the quadrilateral are situated internally to each of the A-type connectors and each of the other pair of diagonally opposite vertices of the quadrilateral are situated internally to each of the B-type connectors; and the quadrilateral is generally disposed in a plane that is generally perpendicular to the plane of the body of the interlockable element.

Abstract: An element of an erection set has a body provided with a rigid projection and a flexible plate spaced from one another so as to form a gap therebetween such that a width of the gap between ends of the projection and the plate is greater than a width of the gap between tops of the rigid projection and the flexible plate is greater than a width of the gap between bottoms of the rigid projection and the flexible plate, and the plates of at least two of such elements are engageable with one another and displaceable relative to one another due to equalization of stresses formed by deformation of the flexible plate during displacement of the flexible plates over the rigid projections of two elements relative to one another and bending of the flexible plates over a surface of the rigid projections during connection of two elements with one another.

Abstract: A toy building set comprising box-shaped building elements that have, in the horizontal plane, dimensions that are integer multiples of a horizontal module (L), and, in the vertical direction, a height (H) which exceeds the horizontal module. The building elements have a tubular opening at a first face. Elements are provided that have a tenon that can be introduced into the tubular opening. At its free end, the tenon is flexible and has protruding edges (23) for snap-effect with the second end of the tubular opening, and the tenon has a protruding portion (21) that serves to ensure that the tenon can be introduced only so deeply into the tubular as corresponds to the horizontal module (L). The building set comprises building elements (30) with coupling studs (31) on the top face and a cavity (32) with a tubular coupling means (33), whereby two such elements are able to interconnect with coupling studs (31) in contact with the sides of the cavity (32) and the tubular member (33).

Abstract: A system of interconnectable construction elements created from molded plastic, and which include planar and cylindrical strut members of varying lengths and thicknesses which can be coupled together and to various construction elements of varying geometries, wherein the construction elements are capable of movement such as pivoting relative to an attached construction element, wherein cylindrical struts include regularly spaced ball structures and regularly spaced gaps therebetween, and wherein the planar and cylindrical struts include a variety of attaching means disposed on the ends thereof that are capable of coupling with complementary structures to thereby form a variety of models, shapes, patterns or designs.

Abstract: A toy building set of building elements (10, 30) having coupling studs (15) and cavities (34) to receive coupling studs (15) in frictional engagement. The cavity (34) accommodates guide means (37) which are adapted to contact coupling studs (15) with a lower friction, and which thereby preferably have a guiding function. This ensures that small and large toy building elements may be built together with a desired coupling force and with a desired friction.

Abstract: A toy construction element having a square body where the square body is composed of four triangular sections. Attached to two of the sections are triangular shaped side arms. Sections having side arms attached are indented as compared to the other two sections by an amount equal to one side arm thickness. These toy construction elements are connected by snaps. Snaps are centrally located on the side arms with the complementary snap housings centrally located on raised body sections. A linear hinge separates side arms from the body. Hinges separate sections of the body.

Abstract: A toy building set comprising a plurality of building elements which each are provided with hinge parts, a first type of hinge parts comprising a substantially cylindrical rod-shaped shaft part of a building element, a second type of hinge parts comprising a claw device consisting of two elastic fingers extending outwards from a building element at a distance from each other, so that the two elastic fingers between them form a track which is narrowed at the distal end of the fingers with respect to the building element, so that the rod-shaped shaft part may be pressed into the track through the narrowed part of the track, said hinge parts additionally comprising a third type of hinge parts being provided with a shaft stud which has an external diameter corresponding to the thickness of the rod-shaped shaft part.

Abstract: An element for constructing a structure by detachably connecting a plurality of the elements in edge-to-edge relationship is disclosed. The element comprises a plurality of margins, with at least one of the margins being an arcuate margin. Each margin comprises at least two projections having a recess therebetween. An end-face of one projection is formed with a protruding hinge-pip and an end-face of the other or another projection is formed with a recessed hinge-socket. The arcuate margin is adapted to mate with a complementary margin of another element with the hinge-pip of each element being urged into the hinge socket of the other element.

Abstract: The four elements are each provided with protrusions constituted by forks the branches of which are resilient, which are each provided with a recess and with an embossment. These protrusions engage with each other, their embossments and their recesses hooking each other, and are thus articulated to each other around rotation axes. The series of protrusions and of the free spaces which separate them are determined in such a way that the four plates can be articulated to each other two by two, that has for consequence they can be articulated all the four to each other. With respect to a central axis, the half-series of each element are not symmetrical but they can be identical.

Abstract: The present invention provides a versatile construction kit which can be used to easily form models of virtually any conceivable person, place or thing including a variety of vehicles, buildings, people, animals, weapons, machinery, caricatures, objects and the like. The construction kit comprises plural connectors which are connectable by a tongue-and-slot mechanism and optionally also by way of interconnectable notches by which they can be perpendicularly and detachably interconnected. The universal connectors are so versatile they can form virtually any geometric, regular, irregular, asymmetric, or symmetric configuration. They can be used to form a model of any known or imagined object. Generally, the width of the notches and of the slots of the connectors substantially approximates the thickness of the connectors.

Abstract: A constructional toy component (13) which has on at least one edge (11), two portions (15, 16) each of which has associated therewith one of two complementary members (19, 18) the arrangement being such that when two similar edges are brought into abutment but in the opposite sense, the complementary members (19, 18) can interengage if one of the components is initially flexed to effectively vary the spacing between the complementary members thereon. In one form of the invention, the edges are formed of rod like members and thus the component is basically defined by a peripheral frame.

Abstract: Four elements are each provided with protrusions constituted by forks, the branches of which are resilient. Each fork is provided with a recess and with an embossment. The protrusions engage with each other, their embossments and their recesses hooking each other, and are thus assembled to each other around rotation axes. The series of protrusions and of the free spaces which separate them are arranged in such a way that the four elements can be articulated to each other two by two, that has for consequence they can be assembled together by engagement of the protrusions of any one element with those of another element. The protrusions on respective halves of each element are not arranged symmetrically, but they can be identical.

Abstract: A constructional system provides a plurality of pieces that can be used to assemble an object. The object includes a connector piece having a shaft that includes opposing first and second ends, and a first deformable section including opposing first and second bars extending from the first end of the shaft. A first notch is defined by the first bar and a first shaft edge, and a second notch is defined by the second bar and a second shaft edge, with the first deformable section having a width defined by the opposing first and second bars. The object further includes a first body piece provided with an aperture having a dimension which is smaller than the width of the first deformable section. The opposing first and second bars of the first deformable section of the connector piece are deformed to insert the first deformable section through the aperture to effectuate a connection of the first deformable section with the first body piece at the location of the aperture.

Abstract: A modular building model is provided. The modular building model includes a base and a lower level module disposed on and engaged with the base. An upper level module is disposed on and engaged with the lower level module. The base includes a releasable securing mechanism that secured the upper level module to the lower level module. The releasable securing mechanism permits easy assembly and disassembly of the model for travelling and storage purposes, and variation of mold buildings.

Abstract: A panel for a multi-part construction toy characterized by having recesses along some or all of its side edges for the locking reception of connector elements of the type incorporated into standard K'NEX multi-part construction sets. The panels are designed for snap-in assembly of the connectors, enabling panels to be joined edge-to-edge to form a substantially continuous wall structure. With right angle connectors, panels can be joined edge-to-edge at right angles. The panels are also provided with central half slots, enabling two panels to be joined with each other in an X-shaped configuration.

Abstract: The present invention relates to a toy construction system comprising building elements of a first type that has a pair of opposed walls that define a space between said opposed walls, wherein those sides of the walls that face towards the space are provided with protruding ribs, and building elements of a second type that have a coupling head which may, by a snap-effect with protruding ribs, be received and releasably secured in the space between the walls on a building element of the first type, wherein said system further comprises building elements of a third type with coupling studs, wherein building elements of the first type or the second type have a cavity for releasably receiving and securing coupling studs on building elements of the third type.

Abstract: A constructional system provides a plurality of pieces that can be used to assemble an object. The object includes a connector piece having a shaft that includes opposing first and second ends, and a first deformable section including opposing first and second bars extending from the first end of the shaft. A first notch is defined by the first bar and a first shaft edge, and a second notch is defined by the second bar and a second shaft edge, with the first deformable section having a width defined by the opposing first and second bars. The object further includes a first body piece provided with an aperture having a dimension which is substantially smaller than the width of the first deformable section. The opposing first and second bars of the first deformable section of the connector piece are deformed to insert the first deformable section through the aperture to effectuate a connection of the first deformable section with the first body piece at the location of the aperture.

Abstract: A toy construction kit, particularly a three-dimensional puzzle, including a plurality of generally regular polygonal construction elements that can be releasably assembled, through tab-and-slot, hinged interengagement, to form a toy construction. Each of the construction elements is formed from a resiliently flexible sheet of plastics material, for example, polypropylene. A single toy construction may include construction elements in regular polygonal shapes of triangles, squares, and pentagons with all of the sides of the elements having, the same length. The tab-receiving slots of the tab-and-slot engagement may be provided in flanges formed integrally with and projecting from the sides of the construction elements.

Abstract: A building set for a toy building comprising a number of building modules (1) which each defines a space, said building modules (1) being so designed that they may be stacked or arranged next to each other as desired for the construction of single- or multi-storey toy buildings, and having means (6,7) for releasably engaging with one or more wall elements (5) in the sides of the building modules (1) irrespectively of the mutual positioning of the building modules (1). Since the columns (3) support girders (4) which define the periphery of the top plane of the building modules, said girders (4) being so arranged that unimpeded access to the building module interior (1) is provided, it is now possible to construct toy buildings with more different plan arrangements compared to the prior art without impeding the access to the building module interiors.

Abstract: A constructional toy system provides a plurality of pieces that can be used to construct an object. Each piece has at least one section having opposing first and second notches, and a tongue defining a neck between the first and second notches, the tongue having a width and opposing first and second flaps. Each piece further includes at least one aperture having an edge and having a dimension which is substantially smaller than the width of the tongue so that the opposing flaps of the tongue of one of the sections of the instant piece or another piece must be bent to insert the tongue through the aperture to effectuate a connection of the section with the instant piece at the location of the aperture.

Abstract: A slotted and grooved construction toy of the type having a plurality of flat bodies with slots interlocking with other flat bodies. The flat bodies have a plastic foam core in combination with a laminated surface. The foam core is a semi-rigid and compressible material which is resilient and durable after repeated use. The laminate is a durable and scratch resistant material that will provide a compressible surface to the foam core. The grooves provide a channel to guide and support the interlocking flat bodies of the construction toy, while allowing a firm, tight connection between the flat bodies and providing a countervailing barrier to shearing stress.

Abstract: A hollow block (e.g. a rectangular prism) preferably has six (6) perpendicular faces. Each face preferably has a wall with a particular thickness. An opening is provided in at least a particular one of the faces, and preferably in all six (6) faces. A hollow beam (e.g. a rectangular prism) preferably has six (6) perpendicular faces. Each face is preferably defined by a wall with a particular thickness. An opening is provided in at least a particular one of the faces, and preferably in the four (4) faces defining a closed loop, in the beam. Substantially parallel snaps extend from the other two (2) beam walls and have at their outer ends portions shaped to facilitate insertion of such snaps into the opening in the particular face of the block, retention of the snaps by the inner surface of the face defining the opening and removal of the snaps from the opening. Such portions are shaped for the beams to be pulled, peeled or bent from the block.

Abstract: A three-dimensional puzzle assembled from puzzle pieces having a succession of rectilinear, curved, or rectilinear and curved segments that cooperate with other assembling and immobilization means used to assemble the puzzle. The assembling and the immobilization means are disposed upon each segment and comprise a contact edge with a flat portion that contacts the flat portion of an adjacent puzzle piece when assembled, at least one lateral extension which forms an overlapping shoulder with the contact edge and a connecting tab located at the extremity of the lateral extension that snaps into a receptor opening of an adjacent puzzle piece when assembled.