An integrated self-opening and self-closing stairs-climbing trolley case is provided. The integrated self-opening and self-closing stairs-climbing trolley case includes a case body, wherein a bottom of the case body is provided with universal wheels, a telescopic draw bar is arranged on a side of the case body, a bottom of a sliding plate is provided with unidirectional wheels, an inner bracket is respectively connected with the telescopic draw bar and the case body, limiting connecting rods on left and right sides are movably connected with the inner bracket via a first connecting rod and are movably connected with the sliding plate via a second connecting rod, torsional spring connecting rods on the left and right sides are movably connected with the inner bracket via a third connecting rod and are movably connected with the sliding plate via a fourth connecting rod.

A wheeling apparatus for a suitcase has a wheeling frame defining a frame plane. A wheeling leg assembly pivotably is attached to the wheeling frame at a pivoting axis and is pivotably moveable between a first position adjacent and parallel to the wheeling frame plane and a second position extending at an adjustable angle to the wheeling frame plane. Leaning wheels are secured to the wheeling leg assembly. Straps enable the apparatus to be removably secured to the suitcase. A flexible wire having a first end attached to the wheeling leg assembly and a second end attachable to a holding device that is configured to firmly hold the second end at an adjustable location thereon and which is so configured as to allow a user to selectively adjust an inclination angle at which the wheeling leg assembly extends relative to the frame plane during use of the apparatus.

The suitcase with wagon-style cart capability is an item of luggage. The suitcase with wagon-style cart capability is formed as a cart. The suitcase with wagon-style cart capability: a) contains one or more domestic articles of a client; and, b) transports additional luggage items over a supporting surface. The suitcase with wagon-style cart capability is a rolling structure. The suitcase with wagon-style cart capability incorporates a suitcase, a plurality of telescopic handles, a plurality of casters, and a plurality of wheels. The plurality of telescopic handles, the plurality of casters, and the plurality of wheels attach to the exterior surface of the suitcase. The suitcase is a container used to store one or more domestic articles of the client. The exterior surfaces of the suitcases form one or more horizontally oriented supporting surfaces on which the additional luggage items of the client are placed for transport.

An integrated self-opening and self-closing stairs-climbing trolley case is provided. The integrated self-opening and self-closing stairs-climbing trolley case includes a case body, wherein a bottom of the case body is provided with universal wheels, a telescopic draw bar is arranged on a side of the case body, a bottom of a sliding plate is provided with unidirectional wheels, an inner bracket is respectively connected with the telescopic draw bar and the case body, limiting connecting rods on left and right sides are movably connected with the inner bracket via a first connecting rod and are movably connected with the sliding plate via a second connecting rod, torsional spring connecting rods on the left and right sides are movably connected with the inner bracket via a third connecting rod and are movably connected with the sliding plate via a fourth connecting rod.

A two-piece hinged hard shell plastic frame includes a set of shoulder straps. Additionally, the backpack includes a pair of triangle shaped wheels for climbing stairs and a retractable pull handle. A concave back plate structure is positioned on the rear of the backpack for conforming to a person's back. A concave head rest portion is also included on the top end of the backpack which provides a comfortable resting area for a user's head. Furthermore, multiple mesh net style pockets on the exterior of the case for holding various items is provided.

A travel bag is provided. The travel bag comprising: a frame having at least three wheels attached thereto, each of the wheels being configured to be contact to a ground; a case being configured to have an empty space to receive objects and also being configured to be disposed on the frame; and a pivot axis being located on or above the frame, the pivot axis being defined by two contact points or a contact line connecting the case and the frame. The case disposed on the frame is allowed to pivot on the pivot axis to draw a trajectory of an arc or a circle. All of the wheels are configured to be maintained as being continuously contact to the ground, regardless of the case's pivoting around the pivot axis.

A system to wheel multiple pieces of luggage simultaneously is disclosed herein. The luggage coupling system Includes connecting straps along the bodies of the luggage. Furthermore the, coupling devices link the wheels of the luggage together to form one system. Additionally, the system includes a track assembly that is mounted on to the back end of each luggage. The track assembly allows for a user to easily transport the luggage system up and down a staircase. The system further includes a battery pack to allow a user to charge their mobile devices as they are transporting their luggage.

The suitcase with wagon-style cart capability is an item of luggage. The suitcase with wagon-style cart capability is formed as a cart. The suitcase with wagon-style cart capability: a) contains one or more domestic articles of a client; and, b) transports additional luggage items over a supporting surface. The suitcase with wagon-style cart capability is a rolling structure. The suitcase with wagon-style cart capability incorporates a suitcase, a plurality of telescopic handles, a plurality of casters, and a plurality of wheels. The plurality of telescopic handles, the plurality of casters, and the plurality of wheels attach to the exterior surface of the suitcase. The suitcase is a container used to store one or more domestic articles of the client. The exterior surfaces of the suitcases form one or more horizontally oriented supporting surfaces on which the additional luggage items of the client are placed for transport.

A luggage item (1) comprising a rigid, essentially rectangular box (3), comprising an essentially planar floor and two longer and two shorter sides, there being mounted on the major axis of the floor a telescopic pulling member (17) equipped with a pulling handle (18), characterised in that (a) the pulling member is mounted externally on the floor by means of a pivot (8) and can move through a fixed arc, the extremities of which arc are appropriate for sliding a luggage item on a staircase, the pulling member being lockable in a position coinciding with the major axis; (b) the luggage item comprises a secondary retaining means that prevents the pulling member being pulled out of the plane of the arc; and (c) the longer sides are provided with means (14) allowing sliding movement on a staircase.

The luggage item can easily be pulled up and down stairs.

The present invention discloses a load-carrying device such as a suitcase, a carry-bag and a hand truck, which can ascend and descend stairs without changing the position of the person relative to the device. The load-carrying device is constructed with a main frame which defines a main plane of the device, at least two main wheels, and a support frame which can swing out of the main plane. The support frame is equipped with a caterpillar mechanism and optional bottom wheels. When ascending stairs, the support frame is pushed against the main frame by the edge of the stairs and the caterpillar with a ratchet mechanism helps slide the load-carrying device upward. When descending stairs, the support frame swings down toward the lower step before the main wheels go off the upper step so that the support frame enables soft-landing of the main wheels.