In one aspect, a method provides a reciprocating bolt by a bolt assembly having a bolt assembly body, a cap affixed to the bolt assembly body, and a base affixed to the bolt assembly body opposite the cap. The method includes biasing a bolt carrier in the bolt assembly body in a retracted position relative to the bolt assembly, resulting in a center portion of a diaphragm disposed between the cap and the bolt assembly body being deflected toward the cap. The method also includes applying an actuation force to the bolt carrier so as to move the bolt carrier from the retracted position to an extended position relative to the bolt assembly by oppositely deflecting the center portion of the diaphragm toward the base, and discontinuing the applying of the actuation force while the bolt carrier is in the extended position.

A wheel traction device is adapted for providing traction for a wheel of a vehicle to escape from a mud ground during rotation of the wheel, and includes: a guiding unit having a guiding portion adapted to abut against the wheel; a bearing unit that is detachably connected to the guiding unit, and that has a bearing portion adapted to be positioned on the mud ground such that, during rotation of the wheel, the bearing unit and the guiding unit are prevented from being driven by the rotation of the wheel to move relative to the mud ground, thereby allowing the wheel to roll over the bearing portion under guidance of the guiding portion; and a fastening unit that detachably fastens the bearing and guiding units together.

A wheel traction device is adapted for providing traction for a wheel of a vehicle to escape from a mud ground during rotation of the wheel, and includes: a guiding unit having a guiding portion adapted to abut against the wheel; a bearing unit that is detachably connected to the guiding unit, and that has a bearing portion adapted to be positioned on the mud ground such that, during rotation of the wheel, the bearing unit and the guiding unit are prevented from being driven by the rotation of the wheel to move relative to the mud ground, thereby allowing the wheel to roll over the bearing portion under guidance of the guiding portion; and a fastening unit that detachably fastens the bearing and guiding units together.

A quick connect tire traction system for providing traction to a tire on a vehicle wheel. The quick connect tire traction system includes an expansion strap coupled to one or more tire traction devices, an inner support coupled to the expansion strap with a rotation member, an outer extension telescopically coupled to the inner support, a rim mount coupled to the outer extension, the rim mount configured to receive one or more locking pins, and an elastic element extending between the inner support and the outer extension. The elastic element is adapted to bias the tire traction devices toward the rim mount thereby securing the quick connect tire traction system to the tire. A method of installing the quick connect tire traction system on a tire.

A quick connect tire traction system for providing traction to a tire on a vehicle wheel. The quick connect tire traction system includes an expansion strap coupled to one or more tire traction devices, an inner support coupled to the expansion strap with a rotation member, an outer extension telescopically coupled to the inner support, a rim mount coupled to the outer extension, the rim mount configured to receive one or more locking pins, and an elastic element extending between the inner support and the outer extension. The elastic element is adapted to bias the tire traction devices toward the rim mount thereby securing the quick connect tire traction system to the tire. A method of installing the quick connect tire traction system on a tire.

The tire traction device is configured for use with a vehicle. The tire traction device attaches to the wheel and tire of the vehicle such that the tire traction device distributes the load delivered through the load path carried by the wheel and tire of the vehicle over a greater surface area than can be provided by the wheel and tire of the vehicle alone. The distribution of the load over this greater surface increases the traction of the wheel and tire of the vehicle on supporting surfaces comprising granular materials. The tire traction device comprises a first stanchion, a second stanchion, a base plate, and a strap. The base plate increases the load distribution of the wheel and tire of the vehicle. The first stanchion, the second stanchion and the strap attach the tire traction device to the wheel and tire of the vehicle.

The tire traction device is configured for use with a vehicle. The tire traction device attaches to the wheel and tire of the vehicle such that the tire traction device distributes the load delivered through the load path carried by the wheel and tire of the vehicle over a greater surface area than can be provided by the wheel and tire of the vehicle alone. The distribution of the load over this greater surface increases the traction of the wheel and tire of the vehicle on supporting surfaces comprising granular materials. The tire traction device comprises a first stanchion, a second stanchion, a base plate, and a strap. The base plate increases the load distribution of the wheel and tire of the vehicle. The first stanchion, the second stanchion and the strap attach the tire traction device to the wheel and tire of the vehicle.

A method for providing additional tractionability to a vehicle tire (20) for mitigating slippery road conditions such as ice and snow. The main embodiment for the main embodiment uses three cleats (26) per tire (20) and a cleat hub (28). Chain welts (32) and adjustable bungee cords (30) complete the install to form a contiguous unit gripping around the perimeter of the tire (20). All of the individual parts are lightweight for easy distribution to the tires (20) needing traction. They are easy to install. They are quick to install at roughly five minutes per tire (20). They are also both easy and quick to dismantle. Being solid bodied members, they are easy to keep clean by quickly hosing them down and they stack up for easy storage.

A method for providing additional tractionability to a vehicle tire (20) for mitigating slippery road conditions such as ice and snow. The main embodiment for the main embodiment uses three cleats (26) per tire (20) and a cleat hub (28). Chain welts (32) and adjustable bungee cords (30) complete the install to form a contiguous unit gripping around the perimeter of the tire (20). All of the individual parts are lightweight for easy distribution to the tires (20) needing traction. They are easy to install. They are quick to install at roughly five minutes per tire (20). They are also both easy and quick to dismantle. Being solid bodied members, they are easy to keep clean by quickly hosing them down and they stack up for easy storage.

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.