A portable tennis equipment bag includes a bag body that has an internal frame that supports the shape of the body and which further provides support for a plurality of extendible legs that can extend from the bottom of the bag. The extendible legs can also collapse inside of the bag body. Each of the extendible legs can be attached, at their lower ends, to an lower shelf member at the bottom of the body of the bag, outside of the body of the bag. As a result, when the extendible legs are extended, the lower shelf portion is separated from the body of the bag and sits beneath the body of the bag, attached to the legs. Rolling mechanisms can be provided at the bottom of the lower shelf portion to allow the bag to be moved about across a surface such as a tennis court.

An expandable carrying case comprises first and second compartments. The first compartment includes a plurality of first walls forming a first space therebetween. A first opening is positioned on one of the plurality of first walls. The first opening is configured to be opened for access to the first space, and also configured to be closed to enclose the first space. The second compartment is coupled to the first compartment and configured to be stored within the first compartment to a stored state, and also configured to extend from the first compartment to an extended state. The second compartment includes a plurality of second walls forming a second space therebetween. A second opening is positioned on one of the plurality of second walls. The second opening is configured to be opened for access to the second space, and also configured to be closed.

Presently provided is a cargo carrying device, an expandable wall support, and method. The cargo carrying device has one or two expandable wall supports configured to transform from a contracted orientation to an expanded orientation. The expandable wall support has legs disposed with a center hub assembly at one end and beams disposed at the other of the legs. Upon the expandable wall support being disposed in the contracted orientation, the legs are disposed substantially parallel with each other and the beams enclose the legs and the center hub assembly. Upon the expandable wall support being disposed in the expanded orientation, each of the beams is disposed to form a longitudinally extending corner and the legs are disposed to support a wall.

The present invention relates to a bag capable of being expanded by mechanical manipulation of a plurality of collapsible rigid walls and temporary fixation thereof using a support element connected thereto.

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.

A piece of luggage is provided. A main body and an expandable body of the luggage are connected to each other by a collapsible portion. The luggage has a cover pivotably connected to the expandable body. A first half of a zipper is fixed to the expandable body and a second half of the zipper is fixed to the cover. The engagement of the first half and the second half closes the cover to the expandable body, and thus a substantially enclosed space is defined by the main body, the expandable body and the cover. The luggage also has multiple rotational wheels mounted to the main body and/or the expandable body. The luggage stands on the rotational wheels and is rotatable with respect to one or more predetermined axes through these wheels.

A luggage container includes a body. The body defines an interior space for carrying articles. The body is expandable and contractible. An adjusting system is configured for adjusting the interior space. The adjusting system includes a first support device, a second supporting device, and a control input. The first and second supporting devices are mounted on the body and are spaced apart from each other at a distance. The control input is configured to be operable to selectively pull the first and second supporting devices towards each other and push the first and second supporting devices away from each ii other. The control input and the first and second supporting devices include a connecting member connected therebetween. The connecting member interconnects the first and second supporting devices. The connecting member is flexible. The distance between the first and second supporting devices determines the volume of the interior space.

A collapsible suitcase includes a main body having a rigid back panel, top, bottom, front, and rear panels. A frame is connected to the panels opposite to the back panel, and a cover is connected to one side of the frame. A liner bag is removably positioned within the main body. The main body transitions between an expanded configuration and a collapsed configuration. In the expanded configuration, the top, bottom, front, and rear panels extend orthogonal to the back panel. In the collapsed configuration the top, bottom, front and rear panels are folded inward and are positioned within the interior space of the main body. A folding wheelbase having a plurality of casters is hingedly connected to rigid back panel. In the open position the casters extend outward from the bottom panel, and in the closed position the casters are positioned against the back panel.

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.

The present invention discloses a material of storage device, a storage device and a bag of the same. The material of storage device comprise a composite layer composed of polyurethane layer, polyurethane-polyurea copolymer layer, ethylene-vinyl acetate copolymer layer materials. The storage device is formed by the above material, which can be folded in vertical direction and/or horizontal direction; the storage device has a plurality of cavity-shaped storage chamber. A bag formed by the storage device is disclosed. The material and structure of the present invention has the features of waterproof, light weight, proper hardness, capability to fold, high wearing feature, scratch resistant. The storing spatial pattern of the said storage device could be adjusted when needed; it could effectively protect the stored items. The provided bag could be opened partially, allowing quickly and conveniently access to the stored items, the storage space in the bag is designed for a better protection of stored items.