A support frame assembly mounted to a narrow track vehicle to enhance stability during turns is provided. The support frame assembly includes a pivot frame assembly coupled to the narrow track vehicle and having a horizontal beam connected to a vertical beam, the horizontal beam supporting the seat of the narrow track vehicle thereon, a fixed frame assembly coupled to the narrow track vehicle and having a horizontal beam pivotably mounted to the vertical beam of the pivot frame assembly, and a pair of struts coupled to the pivot frame assembly and fixed frame assembly. The pair of struts apply counteracting forces on the vertical beam of the pivot frame assembly in response to pivotal movement of the pivot frame assembly relative to the fixed frame assembly.

Portable motor-driven transportation means consists essentially of a personal portable motor-driven transportation means (PMT), with a telescopic handle on the upper part (2), a hand grip (25), where stowage is preferably done with a backpack (1), which offers protection and which is easily carried or slung over one's back, in a simple, practical and fast manner when arriving at one's destination or when it can no longer be used. The board is retractable and/or foldable (8), offering an additional extension (8′), proving to be extremely practical in its use. This additional space (8′) can receive any object, adding a seat, or even another person. In the personal portable motor-driven transportation means (PMT), the driver and rolling wheel assemblies, such as the drive shaft (12) with a free wheel (13) and a pulled wheel (14); with a free axle (3) with free wheels (4); simple axle (3′) with free wheel (4), considering several traction combinations, with simultaneous or partial operation, varying between 4×4, 4×2, 2×1, front or rear, with the aid of an electric motor activation system (15) in the traction, guaranteeing a multifunctional and ecologically correct personal portable motor-driven transportation means (PMT).

A prone bicycle comprising a frame (1), a front wheel (2), a rear wheel (3), a drive mechanism (4) for driving the rear wheel (3), and a pedal mechanism (5) for driving the drive mechanism (4), in which, the front wheel (2) and rear wheel (3) are mounted on the front portion and rear portion of the frame (1), wherein: a forearm support member (6) is mounted at the frame (1) front portion, and a dynamic knee support member (7) having synchronous movement with the pedal mechanism (5) is mounted between the pedal mechanism (5) and the frame (1). Designed with multi-point dynamic and static supports, this prone bicycle improves riding comfort and efficiency and is combined with crawling fitness function.

A prone bicycle comprising a frame (1), a front wheel (2), a rear wheel (3), a drive mechanism (4) for driving the rear wheel (3), and a pedal mechanism (5) for driving the drive mechanism (4), in which, the front wheel (2) and rear wheel (3) are mounted on the front portion and rear portion of the frame (1), wherein: a forearm support member (6) is mounted at the frame (1) front portion, and a dynamic knee support member (7) having synchronous movement with the pedal mechanism (5) is mounted between the pedal mechanism (5) and the frame (1). Designed with multi-point dynamic and static supports, this prone bicycle improves riding comfort and efficiency and is combined with crawling fitness function.

A dual-drive prone bicycle comprises a frame (1), a front wheel (2), a rear wheel (3), a front drive component (4) and a rear drive component (5), wherein: the front wheel (2) and the rear wheel (3) are arranged at the front portion and rear portion of the frame (1); the rear drive component (5) comprises a rear wheel drive mechanism (51) for driving the rear wheel (3) and a treadle mechanism (52) for driving the rear wheel transmission mechanism (51); and a dynamic knee support member (53) having synchronous movement with the treadle mechanism (52) is provided between the treadle mechanism (52) and the frame (1). Designed with multi-point dynamic supports, this dual-drive prone bicycle improves riding comfort and efficiency and is combined with crawling fitness function.

A bicycle training aid with intelligent controller includes a supporting member attached at one end to a bicycle retractably having a wheel disposed at the other end, an action member attached at one end thereof to the supporting member, a driving mechanism attached to the bicycle and engages the action member to cause a displacement of the action member, a sensor attached to either of the bicycle or a body of a rider, a controller, and communication devices. The intelligent controller is configured to monitor the motion status by the sensor signal, make automatically a decision that an event has occurred when a condition has been satisfied, take a procedure corresponding to an occurrence of the event, where the procedure including either of directing the driving mechanism to cause the displacement, or updating the condition according to an algorithm, and actuate the driving mechanism when directed by the procedure.

The invention is based on a wheeled kick-scooter vehicle, comprising: a platform of elongate shape, which is at its rear end provided with a wheel, and which a user may rest at least one foot upon; a steering rod capable of pivoting about a first axis, which is transversal with respect to the forward-motion direction of the vehicle, wherein the rod comprises a first distal end which is provided with a steering device, e.g. a handlebar or a knob, and comprises a second proximal end which is connected to a front wheel via the intermediary of at least one fork straddling the front wheel; wherein the platform is mounted in such a way that it pivots with respect to a second axis that is transversal to the first axis, the platform being thus movable between two extreme positions, namely an active rolling position, in which it is substantially perpendicular to the rod, and a folded-up position in parallel to the rod and close to the latter; wherein the vehicle further comprises a compression mechanism, e.g. a spring, which has an elongate shape and a first end of which is connected to said platform at a distance unequal to zero from the second axis, and a second end of which is connected to said rod for the purpose of exerting a lifting force onto the platform, inducing a torque about the second pivot axis of the platform. It is proposed that the platform is connected to the rod via a bracket which is shaped like an inverted U and spans the fork while permitting the rotation of the latter, wherein the U-shaped bracket features two spaced-apart parallel arms and the second pivot axis is arranged at the free ends of the parallel arms of the bracket.

A set of elements giving the possibility of forming two types of wheeled devices for children which comprises: a platform (10), a handle (3) comprising an upright (20) intended to be connected to the front of the platform (10), and a removable seat (6); said handle (3) is removable with respect to the platform (10), and the platform (10) comprises, on the side of the front wheel(s) (11), a well (13) for receiving the lower portion of the upright (20); the platform (10) comprises a front boss (14) and said well (13) opens at the upper portion of this boss (14); the set of elements comprises a body (4) for supporting the seat (6), the front portion (4a) of which has a front extension (22) and a rear extension (23) defining together a housing (24) having a recessed shape corresponding to the shape of the boss (14); the set of elements comprises means (28, 31) for mounting the seat (6) on said supporting body (4), and the set of elements comprises means (5) for attaching at least one of said extensions (22, 23) to the platform (10).

A standup, electrically powered three-wheeled vehicle has safety features in its control and method of operation.

A portable, multi-platform friction drive system with a retractable motor drive assembly (12), containing all needed components of an electric friction drive system in a portable handheld case (10), including motor (18), batteries (34), and all associated electronics (36), as well as a mounting system (30) that enables use on popular bike share bicycles (20), personal bicycles, and kick scooters. Its mounting system (30) enables the friction drive system to be easily installed in seconds on many varieties of bicycles or kick scooters, and to be removed just as easily when no longer needed. And by means of its retractable motor assembly (12), the present invention enables the friction drive system to be as compact, clean, and safe as possible so as to be easily carried and stored when not in use.