A mobile container that is designed to allows a user to easily transport the container through a variety of terrains, such as snow, sand, and pavement. The mobile container includes an insulated container, a first sled-molded runner, a second sled-molded runner, a first wheel, a second wheel, and a convex protrusion. The first sled-molded runner and the second sled-molded runner are positioned parallel and opposite to each other, across the insulated container, and are adjacently connected to a base of the insulated container. The first wheel and the second wheel are laterally and coaxially connected to the insulated container, opposite to each other. The convex protrusion modifies the flow of sand or snow about the insulated container in order to decrease drag. The convex protrusion is positioned opposite the first wheel and the second wheel. Additionally, the convex protrusion is integrated into a front surface of the insulated container.

A trailer includes at least a plurality of fabric support connections that retain a plurality of fabrics spaced apart from one another so as, if desired, to insulate the roof and side walls of the trailer. In one embodiment, the plurality of fabric support connections are connected by way of extrusions to some of the sides of the trailer and further provide insulation by forming a double wall on those sides. In another embodiment, the plurality of fabric support connections form a double wall only on certain portions of the top side of the trailer.

A trailer includes at least a plurality of fabric support connections that retain a plurality of fabrics spaced apart from one another so as, if desired, to insulate the roof and side walls of the trailer. In one embodiment, the plurality of fabric support connections are connected by way of extrusions to some of the sides of the trailer and further provide insulation by forming a double wall on those sides. In another embodiment, the plurality of fabric support connections form a double wall only on certain portions of the top side of the trailer.

A trailer for being pulled by a motor vehicle, the trailer comprising a chassis having a front section, a first side section and a second side section, wherein the front section comprises coupling means for being coupled to a motor vehicle. The trailer further comprises a first and a second bogie, each bogie having two wheels, the first bogie being connected to the first side section of the chassis in a first pivoting coupling and the second bogie being connected to the second side section of the chassis in a second pivoting coupling. The trailer comprises a first and a second runner extending in the driving direction of the trailer and the first and second runners are moveable between an on-road position and an off-road position, and the first runner is mechanically coupled to the first bogie and the second runner is mechanically coupled the second bogie so that the runners may pivot relative the chassis.

A trailer for being pulled by a motor vehicle, the trailer comprising a chassis having a front section, a first side section and a second side section, wherein the front section comprises coupling means for being coupled to a motor vehicle. The trailer further comprises a first and a second bogie, each bogie having two wheels, the first bogie being connected to the first side section of the chassis in a first pivoting coupling and the second bogie being connected to the second side section of the chassis in a second pivoting coupling. The trailer comprises a first and a second runner extending in the driving direction of the trailer and the first and second runners are moveable between an on-road position and an off-road position, and the first runner is mechanically coupled to the first bogie and the second runner is mechanically coupled the second bogie so that the runners may pivot relative the chassis.

The present invention provides a retractable wheel system for snowmobile skis. The retractable wheel system of the present invention may be installed on a snowmobile ski without affecting its structural integrity by installing the system on the reinforced portion of the snowmobile ski. When a user circulates in a path with little or no snow, the retractable wheel system is positioned in the extended configuration by the user and the system will automatically return to the retracted configuration when the user returns in a snowy zone. This is realized by using a pre-tensioned spring that will reposition the wheel in the retracted configuration. The spring transmits a rotational movement to the member on which the wheel is fixed.

The present invention provides a retractable wheel system for snowmobile skis. The retractable wheel system of the present invention may be installed on a snowmobile ski without affecting its structural integrity by installing the system on the reinforced portion of the snowmobile ski. When a user circulates in a path with little or no snow, the retractable wheel system is positioned in the extended configuration by the user and the system will automatically return to the retracted configuration when the user returns in a snowy zone. This is realized by using a pre-tensioned spring that will reposition the wheel in the retracted configuration. The spring transmits a rotational movement to the member on which the wheel is fixed.

A ski-attachable upright conveyance can have a swept-back handle, an upright frame, strengthening members, ski clamp attachments, a braking system, and a plurality of standing plates. The ski clamp attachments allow simple attachment to a variety of skis (skates, wheels, etc.) to form the base of the conveyance so that it can slide across snow, ice, etc. The standing plates provide a non-slip surface upon which a user places his/her feet, allowing the person to stand upright while operating the conveyance. A braking system can allow a user to safely control their speed, stop, etc. The upright frame sweeps upwards before joining the swept-back handle. The frame locks the ski clamp attachments together and provides rigidity. Additional rigidity and support can be added via strengthening support members. A user can vary the pressure and forces exerted on the swept-back handle to assist in steering.

A transport device in the form of a cart or cargo hauler is foldable to permit the device to be used in transport applications with narrow or constrained parameters. The device may be loaded or unloaded when folded or unfolded, providing a flexible implementation that improves ease of transport. The device may include one or more wheels or skis depending on a desired application. Handles may be provided that telescope and/or fold to provide a compact folded configuration. The transport device may be folded compactly so as to be carried with a backpack or shoulder harness. The handles may be attached to waist belt or shoulder harness to permit hands-free transport. The device is suitable for use over rough back country terrain or sand.

A transport device in the form of a cart or cargo hauler is foldable to permit the device to be used in transport applications with narrow or constrained parameters. The device may be loaded or unloaded when folded or unfolded, providing a flexible implementation that improves ease of transport. The device may include one or more wheels or skis depending on a desired application. Handles may be provided that telescope and/or fold to provide a compact folded configuration. The transport device may be folded compactly so as to be carried with a backpack or shoulder harness. The handles may be attached to waist belt or shoulder harness to permit hands-free transport. The device is suitable for use over rough back country terrain or sand.