A toy is disclosed for a segmented tube track kit. The toy comprises a tube, comprised of reversibly attachable tubes. In one embodiment, the tube segments are held together frictionally. In another embodiment, tube segments are held together by locking mechanisms consisting of projections and cutouts. The toy vehicle in the kit has a drive wheel which is forced up away from the body of the car and against the inner walls of the tube by resilient members. In another embodiment, the vehicle has a tumbler wheel at the front of the car.

A track vehicle for traveling through a toy track system which includes pipe track sections connected together. The track vehicle includes a body having opposite ends and two sides; two diverting pulleys on the sides; a motor in the vehicle; a drive wheel, connected to the motor, at an end of the body; a battery; a control connected to the motor and the battery; two driving pulleys on the sides of the body, at an end of the body, wherein the driving pulleys and the drive wheel allow the track vehicle to stand and run on a plane; and a biasing wheel on top of the track vehicle for applying a force to an inner wall of a pipe track section, that is in contact with the drive wheel, to maintain the drive wheel in contact with the inner wall for driving the track vehicle along the pipe track section.

A track vehicle for traveling through a toy track system which includes pipe track sections connected together. The track vehicle includes a body having opposite ends and two sides; two diverting pulleys on the sides; a motor in the vehicle; a drive wheel, connected to the motor, at an end of the body; a battery; a control connected to the motor and the battery; two driving pulleys on the sides of the body, at an end of the body, wherein the driving pulleys and the drive wheel allow the track vehicle to stand and run on a plane; and a biasing wheel on top of the track vehicle for applying a force to an inner wall of a pipe track section, that is in contact with the drive wheel, to maintain the drive wheel in contact with the inner wall for driving the track vehicle along the pipe track section.

A toy track system for a track vehicle moving within the system includes a track section having pipe track section that are tightly connected to allow the track vehicle to pass through, and a non-track section formed by arrangement other than the track section. The track section includes an outlet end for the track vehicle to temporarily exit the track section and enter into the non-track section, and an inlet end for the track vehicle to return to the track section from the non-track section. A guiding device is provided at the inlet end for guiding the track vehicle to enter a pipe opening of the inlet end from the non-track section. The guiding device includes an end opening that is wider than the pipe opening. The track section further includes connecting devices having two connecting ports for detachably connecting the pipe track sections.

A toy track system for a track vehicle moving within the system includes a track section having pipe track section that are tightly connected to allow the track vehicle to pass through, and a non-track section formed by arrangement other than the track section. The track section includes an outlet end for the track vehicle to temporarily exit the track section and enter into the non-track section, and an inlet end for the track vehicle to return to the track section from the non-track section. A guiding device is provided at the inlet end for guiding the track vehicle to enter a pipe opening of the inlet end from the non-track section. The guiding device includes an end opening that is wider than the pipe opening. The track section further includes connecting devices having two connecting ports for detachably connecting the pipe track sections.

A vehicle configured to move through a network of interconnected tubes includes a body, a motor, a motorized wheel, a biasing assembly, and a first element. The motorized wheel directly engages an inner surface of the tubes. The biasing assembly causes the motorized wheel to maintain continuous contact with the inner surface of the tubes during operation. A waist of the vehicle is constrained by an inner diameter (D) of the curved tube, a radius of curvature (R) of the curved tube, and a length (L) of the wheelbase of the vehicle. The waist of the body is sized such that the vehicle can freely move within any of the tubes without getting stuck therein.

A vehicle configured to move through a network of interconnected tubes includes a body, a motor, a motorized wheel, a biasing assembly, and a first element. The motorized wheel directly engages an inner surface of the tubes. The biasing assembly causes the motorized wheel to maintain continuous contact with the inner surface of the tubes during operation. A waist of the vehicle is constrained by an inner diameter (D) of the curved tube, a radius of curvature (R) of the curved tube, and a length (L) of the wheelbase of the vehicle. The waist of the body is sized such that the vehicle can freely move within any of the tubes without getting stuck therein.

A loop segment for a toy vehicle track set is disclosed. The loop segment comprises a first end, a second end, and a vertically-oriented loop structure between the first end and second end. The first end and second end are positioned such that a directional path of entry into the first end forms a straight line that is aligned with a directional path of exit out of the second end. The loop structure is positioned at an angular offset from the straight line formed by the first end and second end.

A toy vehicle track set is provided. The toy vehicle track set comprises a plurality of track segments. Each track segment of the plurality of track segments has a coupling portion and a plurality of lanes for toy vehicles to race along. The plurality of track segments may be collectively positioned in a racing configuration or a transport configuration. The track segments are coupled together to form a multi-lane raceway in the racing configuration. One or more track segments of the plurality of track segments are positioned to form a rectilinear transport structure in the transport configuration.

A track for a toy vehicle includes several track units. Each track unit has an upper layer and a spaced apart lower layer. Each of the adjacent units comprises two sections. A first section has an upper side for supporting the toy vehicle and a bottom side. A second section has an upper layer having a top side for supporting the toy vehicle and a lower base. The first section has a first connector, and the second section has a mating second connector. The first and second connectors are connectable so that first and second sections are connectable in an adjacent unit to form an adjacency relationship. Each unit includes a first section and two second sections. Two second sections are located at opposite longitudinal ends of the first section. The first section is bendable in a longitudinal sense substantially parallel to a plane on which a track is directed from one end to the other end in a track running direction. The second section is bendable in a transverse sense substantially transverse to a plane on which a track is directed from one end to the other end in a track running direction.