A safety walker having a frame with a set of spherical caster wheels connected to the lower portion of the frame to provide omnidirectional movement with reduced force. A braking system is provided, where when a weight exceeding a threshold weight is applied to the frame, the brake is engaged to inhibit movement of the walker on the ground. The brake may use a mechanism in which each spherical caster wheel is retractably mounted within a lower end of a corresponding leg of the frame. Each spherical wheel is spring-loaded to urge the spherical wheel downward from the lower end of the corresponding leg. As weight is applied to the frame, the spherical caster wheel is pushed into the lower end of the leg, allowing the lower end of the leg to contact the ground surface and maintain stationary contact between the leg and the ground surface.

A safety walker having a frame with a set of spherical caster wheels connected to the lower portion of the frame to provide omnidirectional movement with reduced force. A braking system is provided, where when a weight exceeding a threshold weight is applied to the frame, the brake is engaged to inhibit movement of the walker on the ground. The brake may use a mechanism in which each spherical caster wheel is retractably mounted within a lower end of a corresponding leg of the frame. Each spherical wheel is spring-loaded to urge the spherical wheel downward from the lower end of the corresponding leg. As weight is applied to the frame, the spherical caster wheel is pushed into the lower end of the leg, allowing the lower end of the leg to contact the ground surface and maintain stationary contact between the leg and the ground surface.

Embodiments of the present disclosure relate to a wheel assembly (104) for an article of luggage, such as a suitcase (100). The wheel assembly (104) comprises: a central support element (200); a first wheel (132) rotatably attached to the central support element (200); a second wheel (134) rotatably attached to the central support element (200) on an opposing side to the first wheel (132), wherein the first wheel (132) and the second wheel (134) share a common axis of rotation X; and wherein each of the first wheel (132) and the second wheel (134) are substantially hemispherical in shape.

Embodiments of the present disclosure relate to a wheel assembly (104) for an article of luggage, such as a suitcase (100). The wheel assembly (104) comprises: a central support element (200); a first wheel (132) rotatably attached to the central support element (200); a second wheel (134) rotatably attached to the central support element (200) on an opposing side to the first wheel (132), wherein the first wheel (132) and the second wheel (134) share a common axis of rotation X; and wherein each of the first wheel (132) and the second wheel (134) are substantially hemispherical in shape.

A rolling arrangement and a method enable autonomous movement of a device from a first position to a second position along a surface when the rolling arrangement is integrated in the device. The rolling arrangement includes a wireless receiver, a control device, a position acquirer, a driver for driving a rolling element, and a power supply for providing power to the wireless receiver, the control device, the position acquirer, and the driver.

A rolling arrangement and a method enable autonomous movement of a device from a first position to a second position along a surface when the rolling arrangement is integrated in the device. The rolling arrangement includes a wireless receiver, a control device, a position acquirer, a driver for driving a rolling element, and a power supply for providing power to the wireless receiver, the control device, the position acquirer, and the driver.

Provided is a moving body capable of transmitting driving force of a drive unit to a spherical wheel without a separation between the spherical wheel and the drive unit even in the case where the moving body receives impact due to the road surface condition or the like. The moving body (10) is a self-sustained mobile robot. The moving body (10) includes a spherical wheel (21), a drive unit (22) which is in contact with the spherical wheel (21) to give a rotational driving force to the spherical wheel (21), a support (31) which supports the drive unit (22), and a biasing mechanism (41) which is suspended from the support (31) and abuts on the spherical wheel (21) to bias the spherical wheel (21) in a direction toward the support (31).

Provided is a moving body capable of transmitting driving force of a drive unit to a spherical wheel without a separation between the spherical wheel and the drive unit even in the case where the moving body receives impact due to the road surface condition or the like. The moving body (10) is a self-sustained mobile robot. The moving body (10) includes a spherical wheel (21), a drive unit (22) which is in contact with the spherical wheel (21) to give a rotational driving force to the spherical wheel (21), a support (31) which supports the drive unit (22), and a biasing mechanism (41) which is suspended from the support (31) and abuts on the spherical wheel (21) to bias the spherical wheel (21) in a direction toward the support (31).

A roller assembly for a storage unit enabling rolling of the storage unit on a surface includes a set of bearings and a set of couplers. The bearings are ball transfer type. Each coupler is coupled to a respective bearing and is configured to couple to a bottom of the storage unit so that the coupler is coupled the respective bearing to the bottom of the storage unit. The set of bearings is configured to facilitate rolling of the storage unit and contents thereof along the surface.

A roller assembly for a storage unit enabling rolling of the storage unit on a surface includes a set of bearings and a set of couplers. The bearings are ball transfer type. Each coupler is coupled to a respective bearing and is configured to couple to a bottom of the storage unit so that the coupler is coupled the respective bearing to the bottom of the storage unit. The set of bearings is configured to facilitate rolling of the storage unit and contents thereof along the surface.