A vehicle trolley device for mobilizing a vehicle with a flattened tire includes a ramp that comprises a field that is coupled to and extends between a pair of side supports. A plurality of wheels is coupled to a lower face of the ramp. The plurality of wheels is positioned proximate to a top end of the ramp. A plurality of fasteners is configurable to secure the ramp to the bottom of a flattened tire of a vehicle. The plurality of wheels is positioned on the ramp such that the ramp is configured for the user to position a vehicle that has a flattened tire onto the ramp. The ramp then is not in contact with the ground. The plurality of fasteners is configured to secure the flattened tire to the ramp, such that the user can drive the vehicle.

A monolithic, polymer ramp for elevating a tire of a vehicle from ground level to an elevated position includes a slanted portion having a slanted surface extending from a front end, the slanted surface configured to engage the tire and elevate the tire to the elevated position. The ramp includes a wheel supporting portion having a substantially flat surface extending from the slanted surface and a first chock molded therein proximate a back end, wherein the slanted surface and the substantially flat surface comprise a plurality of spaced apart rows of spaced apart columns wherein the spaced apart columns extend from apertures in the slanted surface and the substantially flat surface and terminate at a distal end that is proximately even with the front end.

The present invention relates to a device for preventing or reducing the flattening of the tire (T) of a wheel (TW) of a vehicle (MV) during a parking period, the device including an abutment surface configured or configurable as a lower portion (LP) of the tread of a tire of a tired wheel (TW) and such to apply to the lower portion (LP) and over the entire extension thereof a substantially uniform pressure.

A vehicle trolley device for mobilizing a vehicle with a flattened tire includes a ramp that comprises a field that is coupled to and extends between a pair of side supports. A plurality of wheels is coupled to a lower face of the ramp. The plurality of wheels is positioned proximate to a top end of the ramp. A plurality of fasteners is configurable to secure the ramp to the bottom of a flattened tire of a vehicle. The plurality of wheels is positioned on the ramp such that the ramp is configured for the user to position a vehicle that has a flattened tire onto the ramp. The ramp then is not in contact with the ground. The plurality of fasteners is configured to secure the flattened tire to the ramp, such that the user can drive the vehicle.

A transfer device transfers an electric vehicle, that has been loaded onto a pallet, in a left-right direction or in an up-down direction relative to the direction of forward travel of the electric vehicle. The pallet is provided with: a power-receiving coil that, together with a power-supplying coil of the electric vehicle, forms an electromagnetic coupling circuit; a power-receiving circuit that receives power that is supplied wirelessly from the outside via the electromagnetic coupling circuit; and an electric motor that is driven by power received by the power-receiving circuit, and that causes the pallet to move in the left-right direction or in the up-down direction.

A ramp has a first end and a second end. The ramp includes a form core which has a first core surface and a second core surface. A metal skin is secured to and at least partially surrounds the form core. The metal skin forms at least a first skin surface secured to the first core surface and a second skin surface secured to the second core surface.

A portable powered roller assembly configured to impart a motive force to a wheeled vehicle or structure consists of a roller mounted in a rolling support structure. The roller is rotationally driven by a battery-powered drive unit coupled through a torque multiplying transmission, and is configured for engagement with the circumferential surface of a vehicle wheel. Rotational movement of the roller in engagement with the circumferential surface of the vehicle wheel draws the powered roller assembly towards, and under, the curved circumferential surface of the vehicle wheel, imparting a force to the vehicle wheel which include both a lifting force perpendicular to the supporting surface on which the powered roller is resting, and a motive force parallel to the surface.

A jack and dolly assembly and system including a shaft defining a longitudinal axis extending along the shaft and an interior hollow; a reversible drive mechanism at least partially positioned in the interior hollow of the shaft; a proximal arm removably secured to the shaft and substantially perpendicular to the longitudinal axis; a distal arm removably secured to the drive mechanism, the distal arm being spaced from and substantially parallel to the proximal arm; wherein the reversible drive mechanism is operable to move the distal arm along the shaft.

An improved ramp for facilitating the application of snow chains to the outer tire of a dual tire configuration of a semi truck, or other dual wheeled vehicle. The ramp has a front apron that is close to and parallel to the ground. The front apron allows for the tire to drive on to the apron without pushing the ramp out from under the tire. The tire then travels up an incline section to a top, supporting surface. The bottom of the ramp has a series of adjustable friction enhancing projections that increase friction between the bottom of the ramp and the ground. The friction enhancing projections are adjustable in length, allowing for a user to make the projections longer beneath the supporting surface, further facilitating driving the tire onto the ramp.

A self-locking device with continuous locking positions includes a housing with an internal cavity, a wall of the cavity including a first frictional contact face and a fourth frictional contact face; a locking member with a second frictional contact face and a third frictional contact face, which is movable in the cavity, with the second and third frictional contact faces facing the first and fourth frictional contact faces, respectively; and a first lock block and a second lock block, with the first lock block being arranged between and contacting with the first and second frictional contact faces, and the second lock block being arranged between and contacting with the third and fourth frictional contact faces. The first and second lock blocks allow the locking member to be movable with respect to the housing in a first direction but locked in a second direction opposite to the first direction.