A caster apparatus is provided. In one embodiment, there is provided a caster apparatus including a caster wheel and a first driving wheel disposed on a first side of the caster wheel. The first driving wheel is configured to be driven by a first motor. A second driving wheel is disposed on a second side opposite to the first side of the caster wheel. The second driving wheel is configured to be driven by a second motor different from the first motor. A first actuator is configured to move the first driving wheel in a vertical direction to a ground according to a curvature of the ground. A second actuator is configured to move the second driving wheel in a vertical direction to the ground according to a curvature of the ground, wherein the first and second driving wheels are configured to steer the caster wheel.

A universal traction device for movement over even and uneven supporting surfaces that includes an all-terrain wheel having a circular wheel assembly with a plurality of spoke-containing components arrayed around an outer perimeter wheel edge and control means for extending spokes from the spoke-containing units when encountering an obstacle that the vehicle is to traverse and retracting the spokes when the spokes are no longer required for traversing the obstacle.

A universal rotating module is provided. The universal rotating module comprises a suspension carrier, a top cover, a globular element, and a plurality of cushion members. The suspension carrier includes a through hole and a plurality of first fixing portions beside the through hole. The top cover includes a plurality of second fixing portions. The globular element is disposed between the suspension carrier and the top cover. A portion of the globular element passes through the through hole. Each of the cushion members is correspondingly connected with the first fixing portion and the second fixing portion.

Wheel hub adaptor (11) attachable to vehicle wheel to attach vehicle accessory for rotation with vehicle wheel, has an inner mounting plate (15) with recesses or apertures (17) to match a vehicle wheel stud pattern, a body (19) extending from the plate (15) to an outer mounting plate (27) having a mount to which the vehicle accessory attaches. The mount has apertures (65) which align with studs (75) on a mating mount of the vehicle accessory. The inner mounting plate and the outer mounting plate mount to the vehicle wheel and vehicle accessory respectively, by rotating apertures (17 65) to stop portions (35 71), and is secured by a bolt passing through one of two circular apertures (43 45) or (67 69). Vehicle accessories can be provided like a paddle to self-propel the vehicle in sand, and a wheel to widen the vehicle track.

An adjustable airless tire system with changeable supporting structures optimizes the contradictory relationship between a suspension potential and a tension of a tire according to changes of road conditions. The changeable supporting structures can be selected from one of three separated and compatible parts, including metallic rods, or springs or spring-loaded shock absorbers according to customer's requirements and usage of a vehicle. A metallic cable is used to maximize the suspension potential of the tire and a control component is used to regulate the tension of the tire. A curved tire forms a closed space between the tire and a rim to prevent foreign objects from sticking between them. Therefore, the invention possesses advantages of oil efficiency, affordability, comfortability, controllability and safety.

A tire includes: a skeleton portion including a rim member, a plurality of body springs latched on the rim member, and a plurality of interlink springs interlaced with the body springs; and a tread member disposed at least on the outer periphery of the skeleton portion.

An auxilairy traction assembly adapted to be connected to a first wheel of a first tire of a vehicle. The auxiliary traction assembly including a second tire and a second wheel, the second wheel is a one-piece elongated tube having a first end adapted to be connected to the first wheel of the first tire and a second end housed in the second tire, the first end of the second wheel has a first flange having a curved inward shape that fits into a central hole of the first wheel, the second end of the second wheel has a second flange having a curved outward shape; and when the auxiliary traction assembly is connected to the first wheel, the first tire is spaced apart from the second tire by 2 inches by the one-piece elongated tube of the second wheel.

A driving wheel includes: a first disc provided to be rotatable with respect to a rotary shaft; a second disc provided to be rotatable with respect to the rotary shaft; a plurality of spokes each protruding outward and each having a first side rotatably coupled to the first disc and a second side rotatably coupled to the second disc; a first motor to rotate the first disc; and a second motor to rotate the second disc

A dual plunging constant velocity (CV) drive shaft is provided for communicating rotational forces from a transaxle to a drive wheel of a vehicle. The dual plunging CV drive shaft comprises a drive shaft that transfers torque from the transaxle to the drive wheel. An inboard plunging CV joint is coupled between the transaxle and the drive shaft, and an outboard plunging CV joint is coupled between the drive shaft and the drive wheel. The inboard and outboard plunging CV joints each comprises an elongate housing that receives a CV joint coupled with the drive shaft. The inboard and outboard plunging CV joints communicate rotational forces from the transaxle to the drive wheel during vertical pivoting of a trailing arm coupled with the outboard plunging CV joint. The elongate housings allow the drive shaft to “float” longitudinally, as needed, during extreme pivoting motion of the suspension.

The present application discloses a vehicle rescue device, a rescue plate and a support plate, and relates to the field of cross-country equipment. The vehicle rescue device includes a first rescue plate and a second rescue plate, at least one end of the first rescue plate is provided with a first connecting portion, at least one end of the second rescue plate is provided with a second connecting portion, and the first connecting portion is detachably connected with the second connecting portion.