A snake board apparatus includes: a front footboard part (100) on which a user puts one foot; a rear footboard part (200) on which a user puts the other foot; and a connecting part (300) connecting the front footboard part (100) and the rear footboard part (200) to each other. The connecting part (300) includes: a first finishing member (310) inserted into the housing (120) of the front footboard part (100); a first pipe (320) having one end portion connected to surround a portion of the first finishing member (310) and the other end portion provided with a concave part (322); a second pipe (330) having one end portion integrally provided with a first stopper (332), an outer circumferential surface provided with a coil spring (340), and the other end portion provided with a concave part (334), wherein a locking part (336) is formed at an end portion with a certain interval from the concave part, and second pipe 330 penetrating the first pipe 320 and inserted into the first pipe at a predetermined depth, and the second pipe (330) passes through the first pipe (320) and is inserted into the first pipe by a certain depth; a third pipe (370) having one end portion integrally provided with a third stopper (372) contacting the first finishing member (310), an outer circumferential surface provided with a coil spring (380), and an end portion provided with a locking part (374), wherein the third pipe (370) passes through the second pipe (330) and is inserted into the first pipe (320); a hollow second finishing member (392) inserted through the other end portion of the third pipe (370); a third finishing member (394) having a hollow cap shape and inserted into the second finishing member (392) at a certain depth; and an elastic member (396) having one end portion connected to the first finishing member (310) through the first pipe (320), the second pipe (330), and the third pipe (370), and the other end portion connected to the third finishing member (394) to prevent a separation thereof.

The present steerable wheel assembly incorporates a lean-to-steer mechanism into an inner race of a roller bearing, while a wheel is mounted to an outer race of the roller bearing. A shaft extending from the mechanism is attached to a body, and the mechanism acts to steer the outer race and the wheel about a vertical steering axis when the shaft is tilted about a horizontal axis. The mechanism can be a pivot joint, providing a linear steering response, or can be a lean-to-steer mechanism that provides a non-linear response where the steering action is not consistently responsive to tilting over the expected range of tilting. The present non-linear lean-to-steer mechanisms can also be incorporated into alternative lean-to-steer devices, and alternative mechanisms can employ tracking structures to coordinate tilting motion of a first moving element with steering motion of a second moving element to provide a non-linear lean-to-steer response.

A personal transport vehicle is provided, which includes a front wheel assembly having a front rim and a front tire seated on the front rim, and a rear wheel assembly having a rear rim and a rear tire seated on the rear rim. The vehicle also includes a motor disposed within the rear rim of the rear wheel assembly and coupled to a mount of the rear rim, where the motor is configured to rotate the rear tire to cause movement of the personal transport vehicle. The vehicle further includes a frame coupled to the front wheel assembly and to the motor disposed within the rear wheel assembly, and a steering arm coupled to the front wheel assembly within the front rim for controlling movement of the front tire for steering the personal transport vehicle.

An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Various implementations include a skateboard truck including a baseplate, a hanger, and a kingpin. The baseplate defines has a mounting surface. The hanger includes a main portion, a pivot pin, a first branch, and a second branch. The pivot pin is disposed within a pivot cup of the baseplate. The kingpin is disposed within openings in the baseplate and hanger. The branches each have curved longitudinal axes, a first portion coupled to the main portion, and a middle portion coupling the first and second portions. The second portion of each of the branches defines an axle opening. The first portion extends from the main portion toward the middle portion in a direction away from a mounting surface plane. The second portion extends from the middle portion in a direction toward the mounting surface plane. The first portions are closer to each other than the second portions are to each other.

Mobilized platforms are disclosed herein. The mobilized platforms can include one or more fork hangers attached to a platform with a cog-hub assembly attached thereto. The fork hangers can be attached to the cog-hub assemblies such that each fork hanger is attached to a cob-hub assembly at both a first cog-hub assembly end and a second cog-hub assembly end opposite said first cog-hub assembly end. The mobilized platforms can include additional features such as baseplates or transom plates. The cog-hub assemblies can also comprise wheel assemblies or connected cog-hub subassemblies. The mobilized platforms can also include a treading connected to the cog-hub assemblies.

A self-balancing vehicle includes a vehicle body having a housing with left and right sides which are independently moveable. A unitary support bar is disposed within the housing, and a left drive wheel and an opposed right drive wheel are each coupled to the support bar. A bracket encircles the support bar; the bracket has a cylindrical body formed with a slot through the body. A set screw is fixed to the support bar and is received within the slot to limit rotational movement of the support bar with respect to the bracket.

A nose-dive prevention device for a one-wheeled motorized transportation device is disclosed, which has wheels that strike the ground in the event of a nose-dive situation, instead of the bumper, which could otherwise become abruptly hung and thus throw the rider. The nose-dive prevention device has a base for attachment to the front of the one-wheeled motorized transportation device, and one or more wheels connected to and extending from the base. The wheels are positioned to interpose between the front end of the one-wheeled motorized transportation device and the ground and contact the ground when the front end exceeds a nose-dive angle. However, under normal riding conditions, the wheels are spaced above the ground at a height sufficient to allow normal angular variability of the riding platform needed for control of the one-wheeled motorized device.

A roller board has axles provided with castors and secured at the front and rear ends of a board deck such that a steering movement is transferrable to the axles by a person on the board deck by lateral shifting of weight. Steerability and problem-free operation are improved. Substantially rigid booms, one directed to the front and one directed to the rear, are provided at the front and rear ends of the board deck, respectively. A support arm pointing in the direction of the central axis of the board deck is rigidly fastened to each boom. The support arms are pivotable on the two sides about a pivot axis inclined in the direction of travel by 40° to 50° relative to the plane of the board deck. The axle of a single castor is mounted rotatably in or on each hub, with the pivot joint inside the castor.