A vehicle track system to increase the contact patch of the tires on a vehicle for use in sand, snow, or soft soil is disclosed. The vehicle track system is a quickly installed vulcanized rubber sections draped over the tire and secured with very strong over-center latches. The over center latches are used for closing the wrapped rubber track with some fine threaded adjustment and an over center clamp. Steel pins are used to link the individual track to tread together. The over center clamp is adjustable in length, allowing for fine tuning of the fit of the track on the tire. The vehicle track system works for almost any size tire and provides more width for dual wheels. The vehicle track system is easily installable and provides a large footprint that enables a vehicle to cross terrain.

The vehicle wheel rim with integral spare tire includes a main wheel and an integral spare tire. The main wheel includes a main rim well, an inner and outer flange, and a center disc. A main tire may be mounted onto the main wheel and the main wheel may be bolted onto a hub on an axle of a vehicle. The integral spare tire includes a safety rim well, safely rim, and safety tire with the safety tire mounted on the safety rim. The integral spare tire is coupled to the inside of the main wheel. The dimensions of the main wheel, main tire, and integral spare tire are such that when the main tire is inflated the integral spare tire does not touch the road surface. However if the main tire goes flat the integral spare tire will touch the road surface and will support the vehicle.

The vehicle wheel rim with integral spare tire includes a main wheel and an integral spare tire. The main wheel includes a main rim well, an inner and outer flange, and a center disc. A main tire may be mounted onto the main wheel and the main wheel may be bolted onto a hub on an axle of a vehicle. The integral spare tire includes a safety rim well, safely rim, and safety tire with the safety tire mounted on the safety rim. The integral spare tire is coupled to the inside of the main wheel. The dimensions of the main wheel, main tire, and integral spare tire are such that when the main tire is inflated the integral spare tire does not touch the road surface. However if the main tire goes flat the integral spare tire will touch the road surface and will support the vehicle.

An uncoupling pulley provided with a longitudinal axis includes a wheel rim including a first area, intended for receiving a belt connecting the wheel rim to a first power-transmission element, and a second area extending from the first area; a hub rigidly connected to a second power-transmission element; one of the power-transmission elements being driving and the other being driven; a ring gear including a first portion located under the second area and a second portion presented in the shape of at least one cylindrical skirt extending, from the first portion, along said longitudinal axis, the ring gear being capable of rotating relative to the wheel rim and/or the hub about the longitudinal axis; a device for driving the ring gear by the wheel rim; a resiliently deformable element, one end of which is attached to the hub and another end of which is attached to the ring gear; the cylindrical skirt being located opposite the resiliently deformable element, so that the resiliently deformable element can engage with the cylindrical skirt in said first relative direction of rotation.

An uncoupling pulley provided with a longitudinal axis includes a wheel rim including a first area, intended for receiving a belt connecting the wheel rim to a first power-transmission element, and a second area extending from the first area; a hub rigidly connected to a second power-transmission element; one of the power-transmission elements being driving and the other being driven; a ring gear including a first portion located under the second area and a second portion presented in the shape of at least one cylindrical skirt extending, from the first portion, along said longitudinal axis, the ring gear being capable of rotating relative to the wheel rim and/or the hub about the longitudinal axis; a device for driving the ring gear by the wheel rim; a resiliently deformable element, one end of which is attached to the hub and another end of which is attached to the ring gear; the cylindrical skirt being located opposite the resiliently deformable element, so that the resiliently deformable element can engage with the cylindrical skirt in said first relative direction of rotation.

A system for attaching a plate to a vehicle is provided. The system includes lug nuts and lug bolts for attaching the plate to a threaded wheel stud. The lug nuts each define a threaded stud recess for engagement with a threaded wheel stud and a threaded bolt recess for engagement with a threaded portion of a lug bolt. The lug bolts each define a head for rotating the threaded portion of the lug bolt into the bolt recess of the lug nut, a shaft positioned between the threaded portion and the head, and a rotatable portion. The rotatable portion defines a center aperture freely rotatable about the shaft and a bolt aperture for accepting a fastener. A lock nut is positioned about each of the lug bolts for locking the lug bolt into position relative to the lug nut.

A system for attaching a plate to a vehicle is provided. The system includes lug nuts and lug bolts for attaching the plate to a threaded wheel stud. The lug nuts each define a threaded stud recess for engagement with a threaded wheel stud and a threaded bolt recess for engagement with a threaded portion of a lug bolt. The lug bolts each define a head for rotating the threaded portion of the lug bolt into the bolt recess of the lug nut, a shaft positioned between the threaded portion and the head, and a rotatable portion. The rotatable portion defines a center aperture freely rotatable about the shaft and a bolt aperture for accepting a fastener. A lock nut is positioned about each of the lug bolts for locking the lug bolt into position relative to the lug nut.

A device to increase the grip of the tread of the wheel of a vehicle is disclosed. A base is secured to the outside of the face of the rim of a wheel, and a plurality of moving spokes whose ends are connected to claws are elastically connected to each other to form a belt whose diameter progressively increases during its positioning. The moving spokes cause the belt to switch from a retracted rest configuration having the shape of an annulus, in which the claws are arranged inside the perimeter of the base (2), to a configuration that make its extension progressively increase around the tread, wherein the claws contact a roadbed.

An attachment is provided for a vehicle wheel for enabling a driving operation with restricted tire functions. A system includes the attachment and a rim of a vehicle wheel.

A tire rim of a motor vehicle includes a substantially cylindrical body for holding a tire, and a hub connected to the body through radial members, and has an outer face facing, in use, the outside of the vehicle, and an opposite inner face. At least one elongate flexible element associated with the rim can reach a resting configuration within the rim, and a working configuration, extended with respect to the resting configuration, of such a length as to allow the tire to be surrounded, in which each flexible element is wound around the tire to form a snow chain. The rim includes at least one retaining member at a zone of its inner face, to be engaged by a portion of a flexible element in its working configuration.