A portable cooler includes a first semicylindrical member defining a first aperture in a first side and a second aperture in a second side thereof. A second semicylindrical member is hingedly coupled with the first semicylindrical member. A cradle is removably positioned in the first semicylindrical member. The cradle can rotate with respect to the first semicylindrical member within the space defined by the first semicylindrical member. First and second wheels are rotatably coupled with the first semicylindrical member. First and second axles extend through the wheels and first semicylindrical member and into the cradle. The axles allow independent rotation of the cradle, the first semicylindrical member and the wheels to maintain a substantially horizontal rotational orientation of the cradle with respect to the first semicylindrical member.

Implementations of a lawn roller-wheelbarrow are provided. The lawn roller-wheelbarrow comprises a roller-wheel that can be used to even out a lawn surface and a tray adapted to carry a load. Through the use of a wheel adapted to act as a lawn roller, the tray can be used to transport a load without leaving a track, or potentially creating a rut, in the lawn surface. The preferred implementation of the lawn roller-wheelbarrow comprises: a frame that includes a pair of handles, a tray mounted on the frame that is adapted for carrying a load, and a roller-wheel rotatably mounted to the frame. The roller-wheel has the general shape of a cylinder and a length L that is greater than its width W (or diameter).

A tread link assembly is provided for improving the performance of a wheel on loose surfaces. The tread assembly includes a plurality of linked plates forming a circuit around the outer circumference of the wheel. The linked plates include first and second linking structures and releasable fasteners for linking adjacent plates together. The together the plates create a tread surface that is wider than the axial width of the wheel.

A portable cooler includes a first semicylindrical member defining a first aperture in a first side and a second aperture in a second side thereof. A second semicylindrical member is hingedly coupled with the first semicylindrical member. A cradle is removably positioned in the first semicylindrical member. The cradle can rotate with respect to the first semicylindrical member within the space defined by the first semicylindrical member. First and second wheels are rotatably coupled with the first semicylindrical member. First and second axles extend through the wheels and first semicylindrical member and into the cradle. The axles allow independent rotation of the cradle, the first semicylindrical member and the wheels to maintain a substantially horizontal rotational orientation of the cradle with respect to the first semicylindrical member.

Embodiments of the present disclosure are directed to a cart frame and modular, motorized cart. In some examples, the cart frame may comprise a wheel assembly, handles, and a kickstand. A modular article (e.g., litter, stretcher, game basket, etc.) may be attached to the top portion of the cart frame via at least one fastener (e.g., buttons, snaps, hooks, buckles, quick-detach mounts, etc.). The handles may be foldable and extendable. The kickstands may also be foldable and extendable. The handles, in some embodiments, may serve a dual purpose by folding to a certain length to function as a kickstand. In other examples, the cart may comprise an engine that may be gas-powered or electric. A battery may be affixed to the cart frame that powers the electric engine. Other objects may also be attached to the cart frame or modular article, such as a winch, tow bar, light, bumper, etc.

There is provided a foldable motorized cart having at least a first and a second connected section, each of the sections connected with a hinge and pivotable with respect to each other and further including a compartment hingedly connected to either one of the sections, with the compartment having a bottom floor, side walls and a top cover surface, and also having an internal space for containing, a motor drive system, a drive controller and a battery. The battery and drive controller are electrically connected to the motor drive system which is mechanically linked to at least one of a drive wheel or a drive track mechanism for propelling the motorized cart, where the motor drive system is located within the drive track mechanism.

A storage transport apparatus is disclosed that includes a single wheel member and a main frame. An outer shell of the single wheel member comprises a pair of shell members secured to a central member, which has a pair of pin structures internally secured at diametrically opposite ends and extending at least towards the inner shell. An inner shell of the single wheel member comprises a pair of shell bearing members positioned at diametrically opposite ends, each being rotatably secured to inner member of a corresponding pin structure extended towards the inner shell. The inner shell is formed and configured to fit within the outer shell, the outer boundary of the inner shell preferably conforming in shape with the inner boundary of the outer shell, proximally tracing the contour of the inner boundary of the outer shell. The inner shell and the outer shell are hollow in construction, with the inner shell further including a lid configured to open and close for storing a plurality of items for transportation. The inner shell is disposed within the outer shell and adapted to remain upright when the outer shell rolls in a circular motion along a ground surface. The main frame comprises a handle and is rotatably engaged with the single wheel member. Each end member of the main frame comprises a corresponding frame bearing member, and extends inwardly to rotatably engage with corresponding pin structure of the central member.

An axle-free wheel comprising: an outer rim member having a ground interface on an external surface thereof and an outer ball race or rolling race on an inner surface thereof; an inner rim member having an inner ball or rolling race on an outer surface thereof.

The disclosure relates to a transport device, in particular for transporting luggage, which comprises a support structure, a coupling element or a handle and a rolling body in addition to a transport container for receiving objects, in particular luggage. The rolling body has a rotational symmetry and is configured such that it tapers in diameter towards the ends along the axis of symmetry. Because of the arrangement and design of the transport container, the transport device is self-stabilizing in operative use.

An apparatus for transporting packages is comprised of a horizontal member; a right roller mount proximate the corner of the back surface and the right surface of the horizontal member; a left roller mount proximate the corner of the back surface and the left surface of the horizontal member; a roller rotatably coupled to the right and left roller mounts; and a substantially vertical member. A system is comprised of the apparatus and a package secured to the top surface of the horizontal member. A consumer article may be positioned in the package. Methods of use of the systems for transport of consumer articles is also described herein. The apparatus, systems, and methods may permit convenient reuse of the apparatus and package.