Disclosed is a device for turning rotatable rods for folding or unfolding wheels of a carrier, the device comprising: a pair of rotatable rods, each of which comprises one or more helical lines; a cross bar comprising helical line coupling portions coupled to one or more helical lines, and one or more elastic members, which provide restoring forces to the cross bar.

A scissor lift for raising and lowering a heavy object, including an upper platform for supporting a heavy object, including a release mechanism, and guided rollers mounted on axles, a lower frame including guided rollers mounted on axles, a scissor lift mechanism fastened to the axles of the upper platform guided rollers and to the axles of the lower frame guided rollers, that raises and lowers the upper platform, a locking mechanism including protrusions protruding outward of the upper frame, each protrusion corresponding to a different height of the scissor lift mechanism, wherein at least one guided roller within the upper platform includes a spring-loaded pin for engagement in the protrusions, thereby locking the scissor lift mechanism into place at a height corresponding to the protrusion into which the spring-loaded pin is engaged, and a release mechanism that unlocks the scissor lift mechanism.

A system and method for storing and sequencing a plurality of luggage items. The method includes receiving at least one of the luggage items into a loading area from an entrance conveyor disposed in the loading area. Once received, the luggage items are moved from the entrance conveyor onto a shelf of a container with a loading assembly. The method continues with transporting the container from the loading area to the storage area with an automatic guided vehicle with the luggage item disposed on the shelf of the container. When the luggage items are ready to be processed, the method continues with transporting the first container from the storage area to the unloading area with the automatic guided vehicle with the received luggage item disposed on the shelf of the container. Different embodiments of the loading and unloading assemblies are provided.

A wheeled luggage case having a luggage receptacle, with two opposing major walls and having end walls forming a luggage compartment. The handle is a flexing, bending, pivoting or otherwise angular mobile linkage. In one embodiment, a major wall of the receptacle is adapted to serve as a bottom wall that faces the ground during a wheeled mode of travel. In another embodiment, the luggage case is deployable in two modes of travel. The case has two alternative attachment points for the handle, one for pulling the case along in a first mode of travel and one for pulling the case along in a second mode of travel.

Disclosed here is a new luggage system, that allows to move or transport, anywhere and at airports, one or multiple luggage in a horizontal or upright position by pulling from a foldable and or bendable handle from different degrees and angles, without the need of cart or anybody, the luggage are attached one to another by one or more straps. Additionally, it has three or more upright or regular wheels and three or more retractable horizontal wheels that hide in special design compartment when not being used.

A wheeling frame for a suitcase which has its own rolling wheels includes a frame supporting a pair of leaning wheels arranged at ends of a pair of pivotable legs, with a first wheel arranged at the end of a first leg and a second wheel arranged at the end of a second leg. The leg positions are adjustable between a stowed position and a deployed, adjustable position extending at an angle to the frame. The legs have a movable pivoting axis and adjustable lengths. A handle system at a proximal end of the frame is adjustable in length and angle, and is operable in conjunction with the leaning wheels to roll the suitcase in a stable leaning position, to allow walking the suitcase on steps of a staircase, and to be converted into a suitcase table, to ease packing and unpacking.

An apparatus for hauling which renders the user's hands free and eliminates fatigue. The instant apparatus additionally affords the user the ability to couple personal effects in a reduced profile towage system. The instant apparatus

A cart includes a pull rod mechanism, a folding bracket mechanism, and a pull rod locking apparatus. The pull rod mechanism includes main and sub-pipes connected telescopically. The folding bracket mechanism includes a bearing frame, connecting rods, and connecting elements. The bearing frame and the connecting rod are rotationally connected to the main pipe. The connecting element is rotationally connected to the bearing frame and connecting rod. The pull rod locking apparatus includes a mounting frame, sliding rods, and a knob. The mounting frame is fixedly connected between two main pipes and is symmetrically provided with two sliding grooves. Two sliding rods are provided and slidably connected in two sliding grooves. The knob includes a lock block circumferentially provided with far and near ends. When the knob is rotated until the far end abuts against sliding rod, an end of the sliding rod tightly abuts and locks the sub-pipe.

Disclosed is a device for turning rotatable rods for folding or unfolding wheels of a carrier, the device comprising: a pair of rotatable rods, each of which comprises one or more helical lines; a cross bar comprising helical line coupling portions coupled to one or more helical lines, and one or more elastic members, which provide restoring forces to the cross bar.

A backpack structure is adapted to provide a storage space, and integrated with a tent structure. The backpack body has a right connection portion and a left connection portion to connect the left sidewall and the right sidewall, wherein the connections are pins, buttons, strips or velcros. The tent structure is stored in the compartment of the backpack body, or the left sidewall and the right sidewall. The tent structure includes a tent base, a left tent portion and a right tent portion. The compartment may has pads, made of cushioning materials, such as foam, to replace the camping mat, for rest. Therefore, the backpack structure of the invention is light for the users of outdoor activities. Moreover, the backpack structure may combine with a trolley structure for drawing easily, or the backpack structure may be designed as a luggage suitcase.