A universal rotating module is provided. The universal rotating module comprises a main body including a first portion and two second portions; a main shaft passing through the through groove to pivotally connected to the main body; two bearings sleeved on and pivotally connected to the second portions along the second direction, respectively; two rollers pivotally connected to the second portions along a third direction, respectively; two hemispherical casings fixed to the two bearings, respectively. The first portion includes a through groove extending along a first direction, and the two second portions protrude from opposite sides of the first portion along a second direction, respectively. Each of the hemispherical casing includes a through hole at the top, and a portion of each of the rollers is exposed out of the corresponding through hole.

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 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 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.

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.

An all-terrain load transport system including a cylindrical first base member and at least three pairs of arms is provided. A handle is removably attached to an attachment member disposed on the cylindrical first base member. The cylindrical first base member defines a space for receiving at least one piece of accessory equipment. Each pair of the three pairs of arms defines a wheel support assembly at an end of each pair distal from an outer periphery of the cylindrical first base member. The three pairs of arms are detachably attached to the outer periphery of the cylindrical first base member. The wheel support assembly includes a cylindrical second base member defining a space for receiving a spherical wheel. The spherical wheel moves omnidirectionally within the defined space. Roller bearings positioned along an inner periphery of the cylindrical second base member facilitate the omnidirectional movement of the spherical wheel.

An all-terrain load transport system including a cylindrical first base member and at least three pairs of arms is provided. A handle is removably attached to an attachment member disposed on the cylindrical first base member. The cylindrical first base member defines a space for receiving at least one piece of accessory equipment. Each pair of the three pairs of arms defines a wheel support assembly at an end of each pair distal from an outer periphery of the cylindrical first base member. The three pairs of arms are detachably attached to the outer periphery of the cylindrical first base member. The wheel support assembly includes a cylindrical second base member defining a space for receiving a spherical wheel. The spherical wheel moves omnidirectionally within the defined space. Roller bearings positioned along an inner periphery of the cylindrical second base member facilitate the omnidirectional movement of the spherical wheel.

A spherical body drive type movement device 10 includes rotary bodies 14, 15, and 16 rotating n number of driving spherical bodies 11, 12, and 13 by being rotationally driven in a state of being in contact from two different directions with each of the driving spherical bodies 11, 12, and 13, and moves on a traveling surface G. The rotary bodies 14, 15, and 16 come into contact with the driving spherical bodies 11, 12, and 13 at positions higher than centers P1, P2, and P3 of the driving spherical bodies 11, 12, and 13 in contact and inside a virtual inverted n-gonal pyramid H or, at positions higher than the centers P1, P2, and P3 of the driving spherical bodies 11, 12, and 13 in contact and on lateral faces α, β, and γ of the virtual inverted n-gonal pyramid H.

An article of furniture has retractable and extendable wheels secured beneath each leg. The mechanism for retraction and extension is accomplished by an activation means in mechanical communication with each wheel.

An example article of furniture includes a number of furniture legs having mechanically coupled thereto a respective furniture caster having a rolling component. The furniture casters are movable between (i) an extended position in which their rolling components at least partially extend below bottom surfaces of the furniture legs and (ii) a retracted position in which their rolling components are positioned entirely above the bottom surfaces of the furniture legs. Push-pull cables are mechanically coupled to the furniture casters, and at least one actuator is mechanically coupled to the push-pull cables. When actuated, the actuator applies a pushing force to the push-pull cables, thereby causing the furniture casters to transition from the retracted position to the extended position. When the actuator is not actuated, the pushing force is removed from the push-pull cables, thereby causing the furniture casters to transition from the extended position to the retracted position.