A foldable frame structure for trailer so designed that the distance between the pivot connection center of each pivot holder and the left/right side frame and the topmost edge of the left/right frame bar of the bottom frame is greater than the distance obtained by deducting the width of the collapsed bottom frame from the height from the left/right frame bar of the bottom frame to the topmost edge of the left/right side frame. Thus, the left side frame and the right side frame can be individually collapsed and closely attached to the bottom frame in one step. The present invention can greatly save the transportation volume and simplify the folding structure and folding action, and thus achieve the purpose of user's convenient collection and carrying.

A trailer apparatus is provided having two half forms connected to a frame joint, the half forms mounted on a first and second pivot bar on the joint frame to pivot to open and to pivot to close in a clam shell arrangement. The trailer apparatus may assume a form of backpack or luggage piece adapted to store items and may assume the form of a towable trailer, having a tow bar, wheels, and a three-dimensional covering over the open sides of the half forms to enclose cargo space or to keep a pet inside the footprint of the half form adapted as trailer bed when the trailer apparatus is extended for use.

A bracket, which can be in the form of first and second bracket members, desirably projects outwardly from the trailer frame and includes a bracket passageway. A housing includes a housing passageway extending at least partially through the housing and that communicates with the exterior of the housing through a locking insert receiving opening. The locking insert receiving opening, the housing passageway and the bracket passageways define a locking insert receiving passageway. A locking insert couples the housing to the bracket and thereby to the trailer frame. The locking insert includes an accessory arm receiving passageway communicating with the housing exterior through the locking insert receiving opening.

A bicycle seat recline adjusts the incline of a bicycle trailer seat back. The seat recline can comprise opposed gear racks engaged by gears at opposite ends of a cross member. The cross member is coupled to an upper portion of the seat back. Moving the cross member moves the gears in the gear racks and adjusts the angle of the seat back. The cross member is desirably selectively and simultaneously lockable to and releasable from any one of a plurality of positions along the gear rack. A lower portion of the seat back can pivot about a lower pivot axis. The gear racks can be arced to maintain a constant distance to the lower pivot axis as the cross member is moved and maintains a constant tension on the seat back. A plurality of seats with adjustable seat back reclines can be included in the bicycle trailer.

There is provided an ATV accessory that is easily coupled to an ATV for carrying or transporting humans and animals in rough terrain or in snowy terrain. The present ATV accessory also provides for a kit to change the mechanism of moving forward through various terrain from wheels or tires of different sizes to ski-like members to allow for transport through snow or icy trails or rough terrain.

A motorized scooter cart system is a system that enables a user to comfortably move around while transporting objects or people. The system may include a scooter deck, at least one scooter wheel, a linkage arm, at least one seat assembly, a handlebar assembly, and a pushcart. The scooter deck is designed to support the weight of the user so that the user can freely maneuver the pushcart. The at least one scooter wheel provides the translational force necessary to move the present invention. The linkage arm enables the coupling of the scooter deck to the pushcart. The linkage arm also facilitates the maneuvering of the pushcart. The at least one seat assembly enables the user to comfortably seat while maneuvering the pushcart. The pushcart enables the transportation of objects or people mounted onto the pushcart. Finally, the handlebar assembly enables the control of the pushcart by the user.

A combination trailer and hitch system for a motorcycle is configured to minimize and/or reduce sway of the trailer during use. The system includes a hitch having a coupler attachable to a trailer to be towed, a second coupler attachable to a motorcycle (or a mounting frame attached to the motorcycle) for towing the trailer, and at least a pair of connector arms pivotably fastened by one end to the first coupler and by an opposite end to the second coupler. The pivotable connections of the connector arms are spaced such that a longitudinal axis of each connector arm converges as they extend toward the rear axle of the motorcycle.

A bicycle trailer latch comprises a skewer engaging surface that is desirably at least in part spherical, such as hemispherical. When engaging a bicycle skewer at the rear wheel of a bicycle, the spherical engagement surface allows more freedom of movement of the bicycle trailer relative to the skewer during towing. This enhances the trailers ability to track the movement of the bicycle. The latch can comprise a housing with a housing opening sized to receive the end portion of the bicycle wheel skewer. A stop inside the housing is pivotal to stop closed and stop open positions. In the stop closed position, the housing opening is sufficiently to block the decoupling of the latch from bicycle skewer. In the stop open position, the stop opens the housing opening sufficiently to permit passage of the end portion of the skewer through the housing opening.

A bicycle trailer can easily be mounted to and dismounted from a bicycle seat post without requiring the use of tools. Pivotally interconnected first, second and at least one intermediate, segments are positioned around the seat post when the hitch is mounted thereto. A latch detachedly couples free end portions of the first and second segments together. A pivot for coupling to the towing arm of a bicycle trailer is coupled to one of the segments. Desirably the latch is capable of adjusting the distance between the free end portions to accommodate seat posts of different diameters. Cushions can project inwardly from the segments and into engagement with a seat post to which the hitch is mounted.

The present invention relates to a cart (1) for use as a bicycle trailer (1) or as a handcart (1) with a frame (10) with a pair of wheels (13) and with a loading surface (14) and with a foldable drawbar (3) with a drawbar body (33) which is designed to be connected to a bicycle in a first position and to be guided by a user's hand in a second position. The cart (1) is characterized in that the foldable drawbar (3) has a drawbar holder (30) arranged on the frame (10), the drawbar holder (30) being designed with the drawbar body (33) in the first position and in the second position.

The present invention also relates to a cart (1) for use as a bicycle trailer (1) or as a handcart (1) with a frame (10) with a pair of wheels (13) and with a loading surface (14) and with a fold-out stand (2). The cart (1) is characterized in that the fold-out stand (2) has a stand holder (20) which is arranged on the frame (10) and a stand element (24) which is held in a foldable manner by the stand holder (20), the stand holder (20) having a recess (21) within which the stand element (24) can be hinged between a folded state and an unfolded state.