Abstract: A multi-part construction toy incorporating rod and connector elements, as well as block elements, modified in a way to accommodate the building of hybrid structures utilizing both types of building components. Specialized adapter blocks are provided with openings for receiving special adapter rods. A connector element may be attached in the usual manner to an adapter rod projecting from a block element. For existing rod and connector construction toy sets, the adapter blocks are specially dimensioned to enable multiple attachment points to be established such that complex hybrid structures can be formed. For the large existing base of block type sets, the invention provides a specially dimensioned rod and connector set, compatible with existing toy construction blocks, such that the complex hybrid structures described above can also be executed utilizing existing block elements of standard dimensions.

Abstract: A construction toy system comprised of a plurality of molded plastic girders and connectors. The girder elements of generally square cross section, with interlocking elements extending axially from each end. The interlocking elements each comprise a flange of square configuration, a groove structure of squared configuration adjacent the flange, and a generally cylindrical rod-like extension projecting between the end of the girder body and the groove structure. Connector elements are formed with one or more sockets for receiving interlocking elements of the girders. The sockets have one open side into which the interlocking elements can be inserted with a lateral snap-in action. The flange portions are freely received in a slot formed in the socket, and the groove structure engages and cooperates with opposed locking ribs formed on the sidewalls of the connector socket. Opposed axial grooves in the socket sidewalls engage opposite side portions of the rod-like extension with a snap-in locking action.

Abstract: A container for holding component parts of a construction toy. The container preferably is a suitcase or briefcase configuration, with a carrying handle at the top. An access cover, comprising a large portion of the front wall of the container and a portion of the bottom wall, is hinged on the bottom wall. When the access cover is open, both the cover and the container lie flat on a floor or other support surface, forming an extra large access opening and allowing easy access to parts within the container. The access cover, when open, forms a tray or receptacle, and can function somewhat like a dust pan, facilitating cleanup after use by enabling loose parts to be scooped onto the open cover and then discharged into the container by upward pivoting movement of the cover.

Abstract: A rod and connector toy construction set, especially for use by young children. Connector elements, are formed with one or more rod-gripping sockets arranged radially with respect to a hub. The sockets are open at opposite sides, enabling lateral insertion and removal of rods. The connector elements, which are relatively large for easy handling by small children, are formed of a soft and pliant plastic material, to facilitate assembly and disassembly of rods with the connector elements by small hands. The rods generally are formed of a plastic material harder and stiffer than the connector material to accommodate easy handling of the rods during assembly and disassembly and to provide adequate strength in an assembled structure. The rods include enlarged, generally cylindrical end portions and adjacent neck portions of reduced diameter.

Abstract: A track structure for a toy construction set. A box-like structure is formed by a plurality of closely spaced, generally X-shaped track braces, which support elongated tubular flexible track. elements by track supports at the upper extremities of the “X”. The track elements have longitudinally extending slots therein to tightly receive the track supports. The track braces are supported and positioned by means of longitudinally extending rods, arranged in parallel relation to the track elements and secured to the track braces by a snap-in engagement of the rods with open-ended gripping sockets formed by the lower extremities of the X-shaped track braces. A plurality of track braces may be mounted on a single pair of rods, and rods may be connected together end to end to make a track assembly of any length. The flexible track elements may be of more or less continuous length.

Abstract: A rod and connector toy construction set, especially for use by young children. Connector elements, are formed with one or more rod-gripping sockets arranged radially with respect to a hub. The sockets are open at opposite sides, enabling lateral insertion and removal of rods. The connector elements are formed of a soft and pliant plastic material, to facilitate assembly and disassembly of rods with the connector elements by small hands. The rods generally are formed of a plastic material harder and stiffer than the connector material. The rods include enlarged, generally cylindrical end portions and adjacent neck portions of reduced diameter. The connector sockets include inner portions, configured to receive and closely confine the rod end portions, and outer portions arranged to receive and snuggly grip the rod necks, such that rods are held in axial alignment with the connector sockets.

Abstract: A tilt contact switch for kinetic activity amusement games, for example pin ball games. A spherical tilt element is confined within a spherical socket and mounted below an opening in a game board surface panel. A contact bumper is mounted by the spherical tilt element and extends above the game board surface for engagement by a moving ball or the like. A wobble plate is fixed to the spherical tilt element and positioned closely adjacent to a switch element molded of soft, elastic silicone rubber material formed with spaced contact bumps. Tilting of the wobble plate, as a result of contact with the bumper, will deform and depress one or more of the contact bumps, serving to complete an electrical circuit through circuit contacts underlying a depressed contact bump. The resiliency of the contact bumps serves to bias the wobble plate to a normal or rest position when tilt forces are removed from the contact bumper.

Abstract: A stand-alone drive mechanism for a toy racing car. The mechanism includes individually controlled motors for operating simulated main drive wheels of a race car vehicle, a semi-concealed actual drive wheel for the vehicle, and a steering system. The mechanism is principally intended for use in connection with a construction toy set such as “K'NEX,” to enable construction of toy drag racing vehicles and the like. The simulated main drive wheels are elevated slightly above the support surface and can be rotated independently of the actual drive wheel, to simulate a “burn-out” sequence which typically precedes a drag race. By means of a remote radio control, the main drive wheels can be initially rotated to simulate “burn-out”, followed immediately by operation of the actual drive wheel to send a vehicle down a race path.

Abstract: A game board structure for a construction toy set. A basic game board is formed of three generally rectangular panel assemblies of hollow construction. The panels have interengaging projections and recesses for mechanically locking the panels together to form a flat playing surface for various rolling ball games, such as pinball and speedball. Joining of the panels automatically connects the panels together electrically for scoring and control functions throughout the board. The assembled game board accommodates mounting of a score-indicating panel in different locations, for different playing modes, such as pinball, typically played by one person, and head-to-head games, such as speedball, played by two persons.

Abstract: A contact switch for a kinetic activity amusement game has a base, a universal joint connected to the base and a contact bumper connected to a ball of the universal joint. A electrically conductive coil spring has one end connected to the ball of the universal joint and a second end retained by the base. An electrode has contact portions disposed radially around the coil spring. A power source is connected between the coil spring and the electrode forming a potential electrical circuit. Displacement of the contact bumper by kinetic energy of a game ball causes displacement of the coil spring and contact of the coil spring with the contact surfaces of the electrode closing the circuit.

Abstract: A projectile and launcher combination, in which the launcher is formed with a tubular passage having a convergently tapered inner end. A projectile element is provided at its back end with a plurality of rearwardly extending, cantilever mounted resilient leaf spring elements arranged to be received in and displaced radially inward by the convergently tapered portion of the tubular passage. When the projectile is loaded into the launcher, the leaf spring elements tend to eject it forwardly. A retention arrangement is provided to hold the projectile until it is ready to be ejected. When the projectile is released from retention, the outward pressure of the leaf spring elements on the convergent walls forcibly ejects the projectile from the launcher passage.

Abstract: A structure-forming construction element for a toy log building set, such as those sold under the well known “Lincoln Logs”. The construction element, typically a molding of plastic material, is formed with a plurality of adjacent sockets for the reception and gripping of log elements in parallel, side-by-side relation. In a typical form, the construction element is positioned on a support, and the log elements are oriented vertically in the sockets provided. A second, similar construction element may be placed on top of the upper ends of the logs. Side walls of the sockets can be notched to provide a castellated appearance, such that a structure with vertically spaced construction elements and vertical log elements has the appearance of a castle tower.

Abstract: A unidirectional drive for a multi-part construction toy. A circular first drive element is received within the cylindrical wall of a second drive element. Each drive element has angularly oriented fixed drive teeth projecting toward the other. The outermost dimension of the first drive element is such as to enable it to rotate in one direction within the second drive element, without driving engagement to cause the second element to rotate. At least one of the drive elements is free to move radially with respect to its axis of rotation such that, when rotated in a driving direction, relative radial displacement between the two drive elements causes the respective drive teeth to become positively engaged for maintaining the two drive elements in positive driving relation. An extraordinarily simple and inexpensive one-way clutch drive is achieved.

Abstract: A two-part shock absorber device for toy vehicles is comprised of a sleeve part and a strut part, each formed of molded plastic material. The strut element is received within an internal cavity of the sleeve for axial extending and retracting movement. The upper end of the sleeve cavity is progressively constricted, and cooperates with a pair of upwardly extending spring tines fixed in cantilever fashion to the upper end of the strut. The squeezing of the spring tines within the constriction of the sleeve provides progressively increasing resistance to axial compression of the strut into the sleeve and also provides spring action for return of the strut to its normal axial extended position. A simulated coil spring, molded on the outside of the strut element provides for realistic simulation of the operation of a shock absorber.

Abstract: A panel, formed of molded plastic material in a variety of polygonal geometric configurations, for incorporation into structures built with K'NEX construction toy sets. The panels include elements, typically formed at corners thereof, corresponding in size and shape to rod elements of the construction set and adapted for lateral snap-in assembly with connector elements of the toy set. At least one pair of corner elements is aligned along a common axis and the end-to-end distance between the elements of such pair corresponds with the length of a standard rod element in the construction set so as to be capable of substitution for a rod element in a structure of K'NEX components. The panels serve both aesthetic and structural functions in the assembly.

Abstract: A building block for a construction toy is characterized by having one or more studs projecting from one side and a corresponding number of recesses formed in the opposite side. The studs and recesses are of an equilateral polygonal configuration, preferably having an even number of sides, preferably eight. At least some of the surfaces of the studs are formed to have a negative taper, making the studs slightly larger at the top than at the base. The recesses also are formed such that the walls have a slight negative taper, making the recesses slightly narrower at the open end than farther down in the recess. When a pair of blocks is assembled by inserting one or more studs of one block into one or more recesses of an adjacent block, the negatively tapered configuration of the studs and recesses provides for a tactilly sensible snap action, which is pleasing to the user and also provides a secure assembly.