The present invention relates to a tricycle (800, 810) operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle, the tricycle comprising: a pair of rear wheels (400); a front wheel (100); a head tube (707); a frame (700); a fork (133); a stem (305) configured to rotatably extend from the head tube (707); a rider handle (200), configured to turn the fork (133) about a stem axis extending transverse to the front wheel axis, the rider handle in the first mode being configured to be rotationally coupled with the stem (305) in a manner permitting a tricycle rider to exert forces on the rider handle (200) and thereby turn the fork (133), and the rider handle (200) in the second mode, where the stem axis leads the front wheel axis, being configured to be rotationally uncoupled from the stem (305), preventing forces on the rider handle (200) from turning the fork (133) and permitting the individual pushing the tricycle to turn the fork (133) via pushing force.

Tricycle (800, 810) operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle, the tricycle comprising: a fork (133) having at least one blade (130, 131) configured to support a front wheel (100) in a manner permitting the front wheel (100) to rotate about the front wheel axis; a stem (305) configured to be rotatably moveable with the fork (133); a handle (200), configured to turn the fork (133) about a stem axis transverse to the front wheel axis, the handle (200), in the first mode, being configured to be rotationally coupled with the stem (305) in a manner permitting a tricycle rider to exert forces on the handle (200) and thereby turn the fork (133), and the handle (200) in the second mode, being configured to be rotationally uncoupled from the stem (305), preventing forces on the handle (200) from turning the fork (133); and wherein the front wheel (100) is configured to trail the stem axis when the tricycle is in the second mode.

An inverted pendulum type vehicle (1) includes a propulsion unit (50) provided in a lower part of a vehicle body to actuate a main wheel (52), a drive unit (90, 130) provided in a vertically intermediate part thereof and a seat (200) provided in an upper part of the vehicle body. A battery case (251) is mounted in a part of the vehicle body above the main wheel and behind the drive unit. The battery case is provided with an opening (257) extending from an upper part thereof to a lower end of a rear part thereof. A lid (260) hinged to the battery case selectively covers the upper end of a battery (250) received in the battery case. The battery is retained in the battery case with the help of suitable engagement arrangements (262, 263, 270, 271, 273, 274).

An inverted pendulum type vehicle with a tiltable rider mounting section has a first travel operation unit and a second travel operation unit, which are disposed with an interval provided therebetween in the longitudinal direction and which are capable of traveling in all directions. In a situation wherein a predetermined representative point of the vehicle or the first travel operation unit is to be moved rightward or leftward, the traveling operations of the first travel operation unit and the second travel operation unit are controlled such that the travel velocity of the first travel operation unit and the travel velocity of the second travel operation unit in the lateral direction are different from each other.

Motorradschräglagentrainer, der zwei Ausleger 1, die an einem am Motorrad angebrachten Halteteil mit zwei Aufnahmevorrichtungen oder zwei getrennt angebrachten Halteteilen mit jeweils einer Aufnahmevorrichtungen befestigt sind, wobei das Halteteil oder die zwei getrennt angebrachten Halteteilen jeweils an der Motorradlängsseite im oberen Rahmenbereich und die Ausleger 1 an den Halteteilen anbringbar sind, wobei die Ausleger 1 jeweils am Auslegerende eine Schwinge aufweisen, die ein Stützrad aufweist, wobei die Schwinge 360° um ihre Gierachse drehbar ist und ein Dämpfungselement aufweist.

An apparatus for controlling advancement of a two-wheeled vehicle (1) comprises an auxiliary frame (5) which is rigidly constrained to the frame (2) of the vehicle (1) and is arranged behind the vehicle, the apparatus bearing a rear platform (8), which rests on the ground and is hinged to the auxiliary frame (5) about a horizontal axis that is perpendicular to the direction of advancement, and a column (10) which rises rigidly from the auxiliary frame and is provided with an auxiliary handlebar (11) which is similar to a handlebar (4) of the vehicle (1) and comprises same control means.

A pedaling correction device for a bicycle capable of objectively detecting the state of pedaling and assisting the detection so that the training of pedaling technique can be performed according to an accurate theory, wherein cranks having pedals mounted at the tips thereof are installed on the center axis of the device so that a crank gear can be rotated according to the rotation of the cranks, the state of the pedaling of a user is monitored, the shape of the crank gear is deformed so that, when the cranks reach positions where the user must increase forces applied to the pedals, the vertical diameter of the crank gear can be increased and, when the cranks reach positions where the user must release forces applied to the pedals, the vertical diameter of the crank gear can be reduced, whereby the correction of habit of pedaling can be assisted by using such a crank gear.

A tricycle (10) features a hollow main frame member (12) to which a pair of rear wheels (18a,18b) and a seat (36) are mounted. A head tube (14) is attached to the main frame member (12) an a post (32) is pivotally positioned therein. The tricycle front wheel (24) is connected to the lower end of the post (32) while handlebars (34) are connected to the upper end of the post (32). A steering mitre gear (88) is also attached to the post tube (82) within the head tube (14). A steering shaft (54) is rotatably positioned with the hollow main frame member (12) and features mitre gears (72,64) on its leading and trailing ends (74,62). The mitre gear (72) on the leading end (74) engages the steering mitre gear (88) while the mitre gear (64) on the trailing end (62) engages a mitre gear (52) that is removably engaged by a pushing and steering handle (48). The tricycle thus may be pushed and steered by the handle.

An infant's tricycle or like vehicle can be restrained by a stick structure comprising a rigid tubular element (1, 1') formed in two parts joined together and carrying, at one end, a handle (4) fixed to the tubular element (1') by a swivel connection, and at the other end, an attachment by which the stick structure can be fixed to an infant's vehicle. The attachment (6) is joined to the tubular element (1) by a resilient coupling (5, 7, 8, 8') in the form of a tubular spring (5) encased within an outer sheath in the form of a helical coil (7) embedded at each end in two respective sleeves (8, 8') surrounding the tubular element (1) at one end and the attachment device (6) at the other.

An auxiliary wheel arrangement of a bicycle comprises arms (2) extending sideways from the bicycle body to be vertically displaceable and means (6 or 9 or 12 or 16) to impart to the arms the torque required for lowering the tips of these arms and auxiliary wheels (9) attached to the tips of the arms. These arms are attached e.g. to the rear wheel of the bicycle on both sides thereof. A bicycle equipped with the auxiliary wheel arrangement, which can have its body banked in either lateral direction, is prevented from lifting when it is parked or stopped, being thus kept upright then without fail.