The present invention relates to a self-releasable safety belt for motorcycle or equivalent vehicles (100) comprising a lap belt (101) whereby both ends of said lap belt are affixed with a tongue connector (102), characterized in that, each of the tongue connector (102) is connected to a buckle (103) coupled to a swivel bracket (104), the swivel bracket (104) is fastened at both sides of the lower part of the vehicle's frame, the buckle (103) comprises a trigger button (105), the swivel bracket (104) comprises a pair of arms (107) which in parallel with the trigger button (105), wherein the lap belt (101) is fastened across the wearer's lap for holding the wearer in position during riding and whereby the trigger button (105) is triggered by the pair of arms (107) via swing force to detach the tongue connector (102) from the buckle (103) and release the lap belt (101) when the vehicle falls horizontally to ground to any direction.

A powered wheeled riding device is configured to receive left and right foot inputs from a user and in response control a left motor and a right motor to move respective left and right wheels forwardly and backwardly consistent with the left and right foot inputs in order to steer the device without changing a direction of the wheels relative to a frame of the riding device. The riding device has at least one rear wheel that is not powered. The rear wheel is mounted on a wheel mount that rotates freely about a vertical axis so that the rear wheel freely is directed in any direction.

A powered wheeled riding device is configured to receive left and right foot inputs from a user and in response control a left motor and a right motor to move respective left and right wheels forwardly and backwardly consistent with the left and right foot inputs in order to steer the device without changing a direction of the wheels relative to a frame of the riding device. The riding device has at least one rear wheel that is not powered. The rear wheel is mounted on a wheel mount that rotates freely about a vertical axis so that the rear wheel freely is directed in any direction.

A powered wheeled riding device is configured to receive left and right foot inputs from a user and in response control a left motor and a right motor to move respective left and right wheels forwardly and backwardly consistent with the left and right foot inputs in order to steer the device without changing a direction of the wheels relative to a frame of the riding device. The riding device has at least one rear wheel that is not powered. The rear wheel is mounted on a wheel mount that rotates freely about a vertical axis so that the rear wheel freely is directed in any direction.

A powered wheeled riding device is configured to receive left and right foot inputs from a user and in response control a left motor and a right motor to move respective left and right wheels forwardly and backwardly consistent with the left and right foot inputs in order to steer the device without changing a direction of the wheels relative to a frame of the riding device. The riding device has at least one rear wheel that is not powered. The rear wheel is mounted on a wheel mount that rotates freely about a vertical axis so that the rear wheel freely is directed in any direction.

An electric bicycle includes a frame that has a concave or arc shape. The bicycle also includes two wheels—a front wheel and a rear wheel, with each wheel being connected with an end portion of the frame. A battery-powered electric motor may be connected with the rear wheel to drive the rear wheel and propel the bicycle forward. The battery may be rechargeable. The speed of the bicycle may be controlled by the operator moving a lever with one of their feet. A rotatable knob located on the frame may be used as a cruise control speed setting device. The electric bicycle may be steered by the operator using their feet resting on a pair of foot pegs that are attached to or connected with the front wheel. The electric bicycle may include a regenerative braking system or a friction braking system.

One variation of a system includes: a cam block mounted to a deck of a scooter and defining cam lobes arranged about a pivot feature and cam heels between the set of cam lobes; a pivot block pivotably coupled to the pivot feature and defining followers riding over the cam lobes; a pair of wheel uprights locating a pair of wheel assemblies; a first lateral link extending between and coupled to the pair of wheel uprights and pivotably coupled to the pivot block; a second lateral link extending between and coupled to the pair of wheel uprights, vertically offset from the first lateral link, and coupled to the pivot block between pair of wheel uprights; and a spring element driving the followers of the pivot block into cam heels to bias the second lateral link toward a neutral position.

This invention is an electric unicycle. It is an improvement of a unicycle and a self-balancing electric unicycle. It comprises one wheel (1B), brushless DC motor (1C), operating-pedal (1D), seat (2A), pneumatic springs (2B) for shock absorb, mainboard (1F), lithium-ion battery pack (1G), telescopic handle (1I), emergency brake footboard (1J), casing (1H). The emergency brake footboard (1J) can be easily mounted and unmounted and folded. While in using, the user generally rides on the seat, swings their foot, to adjust the depression angle of the operating-pedal (1D), to control the wheel rotation, rather than by an electric gyro. Thus, this invention is easy to operate, easy to learn, easy to use, flexible, portable, zero emission, great trafficability. It will become the main short-distance means of transportation for cities and villages, and even can be used in poor road conditions, such as field exploration and forest patrol.

This invention is an electric unicycle. It is an improvement of a unicycle and a self-balancing electric unicycle. It comprises one wheel (1B), brushless DC motor (1C), operating-pedal (1D), seat (2A), pneumatic springs (2B) for shock absorb, mainboard (1F), lithium-ion battery pack (1G), telescopic handle (1I), emergency brake footboard (1J), casing (1H). The emergency brake footboard (1J) can be easily mounted and unmounted and folded. While in using, the user generally rides on the seat, swings their foot, to adjust the depression angle of the operating-pedal (1D), to control the wheel rotation, rather than by an electric gyro. Thus, this invention is easy to operate, easy to learn, easy to use, flexible, portable, zero emission, great trafficability. It will become the main short-distance means of transportation for cities and villages, and even can be used in poor road conditions, such as field exploration and forest patrol.

A footrest assembly for mounting to a vehicle rail. A position of the assembly along the rail is adjustable. A footrest is connected to a rail mount to be pivotable about a footrest pivot axis between an adjustment position allowing adjustment of the assembly along the rail and a locked position. A clamping member, movable by the footrest relative to the rail mount, is in a releasing position when the footrest is in the adjustment position and in a clamping position when the footrest is in the locked position. When the clamping member is in the clamping position and the assembly is mounted to the rail, a portion of the clamping member and a portion of the rail mount are disposed on opposite sides of the rail and the clamping member applies a clamping pressure to the rail. The locked position sets the position of the assembly along the rail.