A magnet holder insert comprising a magnet and magnet holder housing designed with internal wall features capable of keeping the magnet properly positioned in the holder device, and external wall features capable of keeping the magnet holder device securely mounted in the finished part. The internal and external fastening elements of the magnet holder housing are designed in such a way as to promote rapid and secure assembly of both the magnet device and the finished part. The exposed surface of the magnet holder device can be configured with flat or dome shaped exposed contact surfaces, depending on how secure or flexible the magnetic joining feature is intended, capable of attaching to another magnet device or a material susceptible to magnetic attraction.

A magnet holder insert comprising a magnet and magnet holder housing designed with internal wall features capable of keeping the magnet properly positioned in the holder device, and external wall features capable of keeping the magnet holder device securely mounted in the finished part. The internal and external fastening elements of the magnet holder housing are designed in such a way as to promote rapid and secure assembly of both the magnet device and the finished part. The exposed surface of the magnet holder device can be configured with flat or dome shaped exposed contact surfaces, depending on how secure or flexible the magnetic joining feature is intended, capable of attaching to another magnet device or a material susceptible to magnetic attraction.

A toy vehicle configured for running on rails, the toy vehicle comprises a chassis comprising a first end and a second end, two side faces extending in the longitudinal direction of the toy vehicle and a top portion, the toy vehicle comprising at least two axles, said at least two axles comprising a wheel wherein the chassis comprises oblong recesses positioned on the inner surface of the chassis, the oblong recesses adapted to obtain a protrusion of a wheel or an end portion of the at least two axles, the chassis comprising two or more axle support arms adapted to support the at least two axles, the two or more axle support arms being adapted to avoid disengagement between an oblong recess and the protrusion of a wheel or an end portion of the at least two axles, respectively.

A toy vehicle configured for running on rails, the toy vehicle comprises a chassis comprising a first end and a second end, two side faces extending in the longitudinal direction of the toy vehicle and a top portion, the toy vehicle comprising at least two axles, said at least two axles comprising a wheel wherein the chassis comprises oblong recesses positioned on the inner surface of the chassis, the oblong recesses adapted to obtain a protrusion of a wheel or an end portion of the at least two axles, the chassis comprising two or more axle support arms adapted to support the at least two axles, the two or more axle support arms being adapted to avoid disengagement between an oblong recess and the protrusion of a wheel or an end portion of the at least two axles, respectively.

Specific classroom tools, toys, and vehicles including a connected plastic and non-conductive materials including encasements around front and back positioned same polarity magnets only and electromagnets train car including train cars with and without energy sources for the purpose of providing invisible contact repulsion between cars and vehicle movement when force is applied to the first car. The invention includes attaching magnetic and electromagnet encasements to the front and back of train cars. The encasements allow close and distant magnet and electromagnet impactful interactions between cars with and without bottom-positioned wheels. The invention is usable for classrooms, toys, and as vehicles and provides a permanently-attached-to-train car thick plastic fence-net-type encasements around magnets providing reduced contact potential and possible magnet-to-magnet contact and desired magnet type, size, power, and only one polarity one-side magnets to reduce magnet attraction and hence provides safety and protection for younger users.

Specific classroom tools, toys, and vehicles including a connected plastic and non-conductive materials including encasements around front and back positioned same polarity magnets only and electromagnets train car including train cars with and without energy sources for the purpose of providing invisible contact repulsion between cars and vehicle movement when force is applied to the first car. The invention includes attaching magnetic and electromagnet encasements to the front and back of train cars. The encasements allow close and distant magnet and electromagnet impactful interactions between cars with and without bottom-positioned wheels. The invention is usable for classrooms, toys, and as vehicles and provides a permanently-attached-to-train car thick plastic fence-net-type encasements around magnets providing reduced contact potential and possible magnet-to-magnet contact and desired magnet type, size, power, and only one polarity one-side magnets to reduce magnet attraction and hence provides safety and protection for younger users.

A magnet holder insert comprising a magnet and magnet holder housing designed with internal wall features capable of keeping the magnet properly positioned in the holder device, and external wall features capable of keeping the magnet holder device securely mounted in the finished part. The internal and external fastening elements of the magnet holder housing are designed in such a way as to promote rapid and secure assembly of both the magnet device and the finished part. The exposed surface of the magnet holder device can be configured with flat or dome shaped exposed contact surfaces, depending on how secure or flexible the magnetic joining feature is intended, capable of attaching to another magnet device or a material susceptible to magnetic attraction.

A track system for a robotic vehicle is described. The track system includes a set of track pieces that each include a set of track coupling components to couple the track pieces in the set of track pieces together to form a track for the robotic vehicle to traverse; and a set of optical markers that each include a first set of marker coupling components, wherein the set of track pieces include a second set of marker coupling components that are complementary to the first set of marker coupling components to couple the set of optical markers to the set of track pieces.

A robotic vehicle for traversing a grooved track is described. The robotic vehicle includes a set of one or more axles; a set of wheels coupled to each axle in the set of one or more axles; one or more motors to rotate the set of one or more axles, including the set of wheels of each axle in the set of axles, to propel the robotic vehicle along the grooved track; and a steering system to manage navigation of the robotic vehicle along the grooved track, wherein the steering system controls rotation of the set of one or more axles along respective pivot points to manage steering of the robotic vehicle.

The model train car coupler comprises a coupler body and a pivoting knuckle. The model train car coupler body resembles a Janney coupler reduced to the scale of a model train. The model train car coupler is used on one or both the ends of a model train locomotive, caboose, or train car to couple one car to an adjacent car. The model train car coupler is used by backing a train car having the coupler into another car also having the coupler. As the cars are pushed together, the pivoting knuckles of each coupler defect to opposite sides, pass each other, and then spring back to their original positions at which point the couplers are engaged and forward motion of the train will cause one car to pull the other forward.