A luggage transport system includes a first piece of luggage, a transport platform movably coupled to the first piece of luggage, and at least one additional piece of luggage supported on the transport platform, wherein the transport platform is adapted to be elevated and lowered relative the first piece of luggage.

A cooler includes a main body which includes a base, an upper rim, and one or more cooler walls extending therebetween. The cooler in some embodiments further includes a removable wheel assembly which includes two coaxial wheels, and an axle. The two coaxial wheels are removably securable to the axle. The cooler still further comprises a wheel fastening system configured to secure the removable wheel assembly to the base of the main body which includes a mount, a clip hingedly connected to the mount, and a locking clasp configured to lock the clip into a closed position to secure the wheel assembly. The cooler yet further comprises a lid including two wheel storage recesses, each being sized and dimensioned to receive and retain one of the coaxial wheel of the wheel assembly, and an axle storage recess sized and dimensioned to receive and retain the axle of the wheel assembly.

An embodiment of an article of luggage is disclosed, the luggage in one practice having compression and expansion capability comprising an interposed metal frame of split configuration having an expansion portion positioned between the split where the metal frame is attached to one side of the luggage. One of more expansion and locking devices permit compression of contents and also enables locking the luggage in its expanded shape.

An extendable luggage includes a first shell, a second shell, an annular strap, at least one extendable device and at least one guiding device. The annular strap connects the first shell with the second shell. The extendable device has a movable base disposed at the first shell, a fixed base disposed at the second shell and sleeved to the movable base, and a positioning mechanism connected with the fixed base and the movable base. When operation end of the positioning mechanism exposed from the first shell is actuated, the positioning mechanism is in an unlocked state where the movable base is moveable relative to the fixed base. When the operation end is actuated, the positioning mechanism is in an unlocked state where the movable base is moveable relative to the fixed base. As a result, user can extend the luggage uniformly according to demand to increase accommodating capacity thereof.

The article of luggage includes a luggage main body having a bottom surface and a cavity formed to receive articles for packing; an expansion body having a perimeter defining a cavity; a foldable gusset joining the luggage main body to the expansion body; and an expansion and locking device disposed internally at opposite ends of the article of luggage. The expansion and locking device is configured to allow free movement of the expansion body in a compression direction towards the luggage main body and configured to allow locking movement of the expansion body in an expanding direction away from the luggage main body. One expansion and locking device is preferably attached to two or more walls of the luggage. After finishing packing, the luggage is closed and the user pushes the expanding member towards the base member, ratcheting the pawl past the ratchet teeth to collapse the luggage.

A protective case for large objects including a lock housing formed from a first section and a second section, both of the sections including at least one external subsection and at least one internal subsection configured to telescope inside the external subsection; and an extension lock comprising a lock housing and a compression lock, the lock housing including a screw-threaded channel, and the compression comprising at least one screw-threaded shaft with a compressive component on the interior end and a lock handle on the exterior end, the screw-threaded shaft configured to matingly engage with the screw-threaded channel of the lock housing; the compression lock configured to descend in the lock housing and compressingly lock the internal subsection in an extended position upon locking rotation of the compression lock; and the compression lock configure to ascend in the lock housing upon unlocking rotation of the cam latch.

Luggage in which the main storage compartment is extendable. The compartment cover is also extendable, comprising material that covers the opening of the main storage compartment through which the compartment is packed with items.

The article of luggage includes a luggage main body having a bottom surface and a cavity formed to receive articles for packing; an expansion body having a perimeter defining a cavity; a foldable gusset joining the luggage main body to the expansion body; and an expansion and locking device disposed internally at opposite ends of the article of luggage. The expansion and locking device is configured to allow free movement of the expansion body in a compression direction towards the luggage main body and configured to allow locking movement of the expansion body in an expanding direction away from the luggage main body. One expansion and locking device is preferably attached to two or more walls of the luggage. After finishing packing, the luggage is closed and the user pushes the expanding member towards the base member, ratcheting the pawl past the ratchet teeth to collapse the luggage.

A compression-expansion locking device for an article of luggage and an expandable article of luggage comprising one or more such devices is disclosed. In one embodiment, the device comprises a housing member having an internal passageway with protruding housing teeth and one or more cam elements. A rack member slidably disposed in the internal passageway has rack teeth releasably engageable with the housing teeth. A release member moveably disposed in the internal passageway comprises a release cam and is displaceable from a first position locking movement of the rack member in the expansion direction, to a second position wherein the release cam impinges against the housing cam element effective to urge apart the housing teeth and rack teeth sufficient to allow movement between the housing member and the rack member in the expansion direction.

A compression-expansion locking device for an article of luggage and an expandable article of luggage comprising one or more such devices is disclosed. In one embodiment, the device comprises a housing member having an internal passageway with protruding housing teeth and one or more cam elements. A rack member slidably disposed in the internal passageway has rack teeth releasably engageable with the housing teeth. A release member moveably disposed in the internal passageway comprises a release cam and is displaceable from a first position locking movement of the rack member in the expansion direction, to a second position wherein the release cam impinges against the housing cam element effective to urge apart the housing teeth and rack teeth sufficient to allow movement between the housing member and the rack member in the expansion direction.