Abstract: A luggage container includes a wheel assembly coupled to a bottom surface of the luggage container, the wheel assembly comprising a wheel; and at least two studs or feet coupled to a side surface of the luggage container. At least one of the at least two studs or feet includes a stud-hook, and the stud-hook is configured to: function as a foot when the luggage container is standing in a first orientation such that the wheel is not in contact with ground; and function as a hook when the luggage container is standing in a second orientation such that the wheel is in contact with the ground.

Abstract: A luggage container includes: a main compartment having a front side and a backside; a cover portion coupled to the main compartment to cover the front side of the main compartment and configured to be open or closed via a first opening/closing mechanism element to expose or cover the main compartment; an expandable portion extendingly coupled to the main compartment, the expandable portion comprising a second opening/closing mechanism element; a storage compartment including an opening portion formed at the expandable portion and a pocket portion extending from the opening portion such that the pocket portion of the storage compartment is located in the main compartment; and a strap having a first locking structure and a second locking structure that are configured to be locked or unlocked, the strap coupled to an inner portion of the storage compartment.

Abstract: A luggage container with built-in external compartment, which includes a case having an outer side and an inner side and a drawer configured to be slid in and out of the case. The case includes a coupling portion formed on the inner side, the coupling portion protruding from the inner side, and the coupling portion is shaped to receive a fastening element. The case is shaped to form a space between a surface of an object onto which the case is coupled and a surface of the inner side to receive the drawer. The drawer is shaped to remain within the case when the drawer is pulled out of the case such that the case and the drawer are not separated even when the drawer is pulled out maximally.

Abstract: A luggage container includes: a main compartment; a cover portion coupled to the main compartment and configured to be open or closed via a first opening/closing mechanism element to expose or cover the main compartment; an expandable portion extendingly coupled to the main compartment, the expandable portion comprising a second opening/closing mechanism element; and a storage compartment comprising an opening portion formed at the expandable portion and a pocket portion extending from the opening portion such that the pocket portion of the storage compartment is located in the main compartment.

Abstract: A luggage container with built-in external compartment, which includes a case having an outer side and an inner side and a drawer configured to be slid in and out of the case. The case includes a coupling portion formed on the inner side, the coupling portion protruding from the inner side, and the coupling portion is shaped to receive a fastening element. The case is shaped to form a space between a surface of an object onto which the case is coupled and a surface of the inner side to receive the drawer. The drawer is shaped to remain within the case when the drawer is pulled out of the case such that the case and the drawer are not separated even when the drawer is pulled out maximally.

Abstract: A luggage cover includes: a front panel, a rear panel, a top panel, a bottom panel, a first side panel, a second side panel, and a carrying element affixed to a top portion of the rear panel, wherein: the bottom panel includes a first panel coupled to an edge portion of the front panel and a second panel coupled to an edge portion of the rear panel; the first panel includes a first fastening element that can be coupled to a second fastening element of the second panel such that the bottom panel can be in a closed configuration or in an open configuration based on whether or not the first fastening element and the second fastening element are coupled; and the luggage cover is configured to receive the luggage container in the open configuration and is formed from pliable material to permit folding.

Abstract: A luggage container includes a wheel assembly coupled to a bottom surface of the luggage container, the wheel assembly comprising a wheel; and at least two studs or feet coupled to a side surface of the luggage container. At least one of the at least two studs or feet includes a stud-hook, and the stud-hook is configured to: function as a foot when the luggage container is standing in a first orientation such that the wheel is not in contact with ground; and function as a hook when the luggage container is standing in a second orientation such that the wheel is in contact with the ground.

Abstract: A wheel assembly includes a first body having a first end portion and a second end portion; a second body having a third end portion and a fourth end portion, the third end portion of the second body rotatably coupled to the second end portion of the first body via a first pivot pin; a wheel rotatably coupled to the second body via a second pivot pin; a rod having a fifth end portion and a sixth end portion, the fifth end portion coupled with the first body via a third pivot pin; a first coiled spring having a first end contacting the first body and a second end contacting the third end portion; and a second coiled spring having a third end, the rod inserted into the second coiled spring via the third end, and a fourth end contacting the fourth end portion.

Abstract: A luggage container includes: a main compartment having a front side and a backside; a cover portion coupled to the main compartment to cover the front side of the main compartment and configured to be open or closed via a first opening/closing mechanism element to expose or cover the main compartment; an expandable portion extendingly coupled to the main compartment, the expandable portion comprising a second opening/closing mechanism element; a storage compartment including an opening portion formed at the expandable portion and a pocket portion extending from the opening portion such that the pocket portion of the storage compartment is located in the main compartment; and a strap having a first locking structure and a second locking structure that are configured to be locked or unlocked, the strap coupled to an inner portion of the storage compartment.

Abstract: Provided is a rolling backpack that may be carried over a user's shoulder with shoulder straps and also be pulled with wheels. The rolling backpack includes a receiving pocket for receiving shoulder straps in a back of a main body, dual wheels coupled to both sides of a lower portion of the main body via shafts and each comprising a pair of wheels, the wheels being integrally coupled to each other to be rotated in the same direction or the wheels being independent from each other to be rotated in the same direction or in different directions, a wheel cover coupled to a lower portion of the back of the main body and spread downwards to cover the wheels, and a protector coupled to the lower portion of the main body in such a way as to extend from a front to a side thereof.