A foldable top tube assembly for a bicycle is provided. The assembly includes a seat post attachment terminus coupled to a first telescoping tubular member, and a headset assembly attachment terminus coupled to a second telescoping tubular member. The overall length of the folded top tube assembly may be about ⅓ the overall length of the fully extended top tube assembly. The assembly further includes a central, hinged tubular member having a first end sized to receive the first telescoping tubular member, and a second end sized to receive the second telescoping tubular member. The assembly may also include a first spring tending to resist extension of the first telescoping tubular member from the first end of the central, hinged tubular member, and a second spring tending to resist extension of the second telescoping tubular member from the second end of the central, hinged tubular member.

A scooter folding mechanism includes a bottom plate, an inclined rod, a limiting mechanism, a double-lock catch, a limiting plate rotatably arranged on the bottom plate, and a pedal rotatably arranged on the limiting plate. The inclined rod is rotatably arranged on the bottom plate. The limiting mechanism includes unfolding and folding clamping slots arranged on the inclined rod, a limiting piece and a return spring arranged on the limiting plate and matched with the unfolding or folding clamping slots. The return spring is configured to drive the limiting piece to engage with the unfolding or folding clamping slots. The unfolding and folding clamping slots are distributed circumferentially around a first shaft rod. The double-lock catch includes a double-lock block rotatably arranged on the inclined rod and a double-clamping groove arranged on the pedal and matched with the double-lock block.

A foldable human-powered vehicle upon which users can ride is described. The vehicle includes a wheel assembly, a deck assembly, a seating assembly, a handle assembly, a deck support frame, and a brake assembly. The vehicle also includes a first and a second bicycle having a first handle disposed opposite a second handle. A first handle of the second bicycle is affixed to a second handle of a portion of the handle assembly to affix the second bicycle to the vehicle. A second handle of the first bicycle is affixed to a first handle of a portion of the handle assembly to affix the first bicycle to the vehicle. The vehicle also includes a rear component affixed to a portion of the deck assembly, where a head tube of a third bicycle is affixed to the rear component to affix the third bicycle to the vehicle.

An electric mobility vehicle including a front-wheel-side body, a rear-wheel-side body, a seat on which a passenger sits in an in-use state, and a linking mechanism that links the front-wheel-side body with the rear-wheel-side body so as to be pivotable about a pivoting axis extending in a vehicle width direction. The electric mobility vehicle is foldable by pivoting the front-wheel-side body and the rear-wheel-side body relative to each other in a vehicle front-to-rear direction. The electric mobility vehicle includes a footrest provided in the front-wheel-side body, a front-end roller or a front-end caster provided in the front-wheel-side body and disposed at a vehicle front side relative to a front end of the front wheel in the in-use state, and comes into contact with the floor surface in the folded state to make the electric mobility vehicle stand alone.

A marking device that is supported by a personal mobility vehicle, such as a scooter, is movable from a first position, in which the marking device does not contact the riding surface, and a second position, in which the marking device contacts the riding surface. The marking device includes an attachment portion and a marking portion that creates markings on the riding surface as a result of frictional contact with the riding surface. The marking device can also include an actuation portion which is accessible to the user and allows the user to move the marking device to the second position. In one arrangement, the marking device includes an elastic marking member which is configured to bend in order to maintain contact with the riding surface.

A product that may include a first axle assembly that may have a lock shaft extendable from the first axle assembly. The lock shaft may be retractable into the first axle assembly. A second axle assembly may have a lock receiver into which the lock shaft may extend when the first and second axle assemblies may be aligned adjacent to one another

A folding joint and a folding bicycle frame are provided. The folding joint includes a hand lever, a first joint connected to a first connecting member, and a second joint connected to a second connecting member, where the hand lever is hinged to the first joint and/or the second joint. When the first joint and the second joint are in a closed position, the hand lever is rotated to a first position. When the first joint and the second joint are in a separated position, the hand lever is rotated to a second position. The hand lever is provided with a first engaging portion. When the hand lever is in the first position, the first engaging portion is configured to engage with a second engaging portion to restrict the first joint and the second joint to be in the closed position.

A foldable bicycle frame includes a rigid element connecting a head with a seat tube, a rear section of the frame, a coupler, and an intermediate seat tube. The front upper part of the rear section of the frame is pivotally connected to the intermediate seat tube. The front bottom part of the rear section of the frame is pivotally connected to the coupler. The other end of the coupler is pivotally connected to the rigid element. The intermediate seat tube is operable to be inserted into the seat tube while unfolding the frame.

A tricycle for riding on any type of terrain, improving stability and safety in slow movement, having a structural chassis incorporating a rolling assembly made up of a rear wheel associated to a propulsion system and two front wheels linked to a driving handlebar, wherein the front wheels are incorporated in a height-tilting suspension, made up of articulated quadrilaterals able to be deformed independently with vertical movement depending on the individual resting of the front wheels on irregularities of the terrain, the height-tilting suspension linking to the handlebar, by means of a transmission, which links the height-oscillating movements of the articulated quadrilaterals of the height-tilting transmission with an equivalent lateral tilting of the handlebar, this transmission having a clutch which allows for enabling or disabling the linkage of the movements between the height-tilting suspension and the handlebar.

A three wheeled stand-up or sit down foldable and portable electric personal mobility vehicle for fulfilling the needs of a broad spectrum of users including the handicapped and recreational users. The personal mobility vehicle has two major parts, including a front wheel frame assembly and a rear frame chassis assembly. These major parts are configured to easily fold into a smaller size so that the vehicle can be easily transportable and more conveniently stored. Furthermore, a versatile seat and seat post are implemented to enable a user to sit or stand, and the seat can be easily removed, without tools, to create more space should a user wish.