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.

Components may be used to build a three-dimensional (3-D) model. The components can include supports and connectors. A subset of components can be selected based on the 3-D model. The subset of components can be used to build the 3-D model.

A transformable toy vehicle hauler comprises a trailer portion that includes three or more trailer sections pivotably coupled end-to-end. A cabin portion is connected to the trailer portion and includes a toy vehicle launcher. The toy vehicle hauler is capable of being configured in a transport configuration where the three or more trailer sections are folded together in a zigzag pattern and a raceway configuration where the three or more trailer sections are unfolded to form a straight track.

A transformable robot, including a car body, under which the robot is equipped with a right leg and a left leg side by side, and on the upper part of which a right arm is on the right side and a left arm is on the left side. A car head is set in front of the car body and a carriage is set on the back of the car body. A head of the robot is installed on the top of the car body, and the right leg, the left leg, the right arm and the left arm are rotatably installed on the car body.

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.

A transformable robot, including a car body (4), under which the robot is equipped with a right leg (1) and a left leg (8) side by side, and on the upper part of which a right arm (3) is on the right side and a left arm (7) is on the left side. A car head (2) is set in front of the car body (4) and a carriage (6) is set on the back of the car body (4). A head (5) of the robot is installed on the top of the car body (4) and the right leg (1), the left leg (8), the right arm (3) and the left arm (7) are rotatablely installed on the car body (4).

A wheel removal tool for a toy vehicle wheel has a tool base body and at least one rear-engagement portion. The latter is connected fixedly to the tool base body and is embodied so that it, in a removal starting position, engages behind an assigned removal portion of the toy vehicle wheel. A removal lever of the removal tool has a supporting portion for support on a vehicle component fixed on the chassis. The removal lever is adjustable relative to the tool base body between the removal starting position and a removal end position. In the latter, the at least one rear-engagement portion is displaced relative to the supporting portion in a removal direction. This results in a removal tool with which a simple detachment, which is in particular close to reality, of the toy vehicle wheel from a chassis-side vehicle component is enabled.

A remote-controlled toy vehicle with intelligent interchangeable heads is provided where the operational characteristics of the remote-control toy vehicle changes depending on the particular intelligent interchangeable head that may be detachably mounted to the toy vehicle. Some of the characteristics of the remote-control toy vehicle that may change include, but are not limited to, speed level, acceleration level, sound effects and lighting effects.

A Lynchpin structure may be combined with one or more additional Lynchpin structures to form a compound Lynchpin propulsion structure. Each Lynchpin structure may include six pentangular areas, and one or more of the pentangular areas may include a propulsion device. The propulsion may be used to propel the compound Lynchpin propulsion structure through or over various media, such as through air, across ground, on or underwater, or through or over other media. The propulsion may include avionic propulsion, ground propulsion, hydrodynamic propulsion, or other types of propulsion. A single type of propulsion device may be used within one or more of the pentangular areas, or diverse types of propulsion may be used to provide various navigational performance or multi-mode operation. Each propulsion device may also include a device to direct the propulsion, such as a single or multi-axis gimble or adjustable aerodynamic control surface.

The invention relates to a coupling element comprising a body with an axial axis arrangeable in an opening of an object, which body is provided along its outer periphery with at least one outward extending locking cam, wherein the body is provided with at least one resiliently movable tongue extending therefrom, to which tongue the locking cam is connected, wherein the at least one tongue is movable inward by a force being exerted thereon.