A system is provided for retractably deploying traction of a wheel. The system includes a set of grippers, each gripper having a cleat and a radially disposed strut. The system further includes a set of first poles, each first pole coupled to one of the struts, the first pole configured to support motion of its corresponding strut between a parked position and an engaged position, wherein, in the engaged position, the corresponding cleat is axially disposed and engaged against the tread of the wheel and, in the parked position, the corresponding cleat is disengaged from the tread of the wheel. The system includes a first faceplate configured to rotate with the wheel. The system further includes a cleat deployment mechanism having a second faceplate rotatably coupled to the first faceplate, and a set of second poles, each second pole coupled to one of the struts and to the second faceplate.

A system is provided for retractably deploying traction of a wheel. The system includes a set of grippers, each gripper having a cleat and a radially disposed strut. The system further includes a set of first poles, each first pole coupled to one of the struts, the first pole configured to support motion of its corresponding strut between a parked position and an engaged position, wherein, in the engaged position, the corresponding cleat is axially disposed and engaged against the tread of the wheel and, in the parked position, the corresponding cleat is disengaged from the tread of the wheel. The system includes a first faceplate configured to rotate with the wheel. The system further includes a cleat deployment mechanism having a second faceplate rotatably coupled to the first faceplate, and a set of second poles, each second pole coupled to one of the struts and to the second faceplate.

A system is provided for retractably deploying enhanced traction of a wheel having a tread and an axis of rotation. The system includes a set of grippers, each gripper having a cleat and a radially disposed strut. The system further includes a set of strut mounts, each strut mount coupled to one of the struts, the strut mount configured to support motion of its corresponding strut between a parked position and an engaged position, wherein, in the engaged position of such strut, the corresponding cleat is axially disposed and engaged against the tread of the wheel and, in the parked position of such strut, the corresponding cleat is disengaged from the tread of the wheel. The system further includes a cleat deployment mechanism, coupled to the struts, configured on actuation to cause automatic deployment of the struts into the engaged position.

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 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.

The anti slip device for automobile wheels with wheel discs arranged at inner side plain of the wheel, load-bearing part of which is attachable to the wheel from the outside. The extensible body is placed slidingly in the direction parallel to the wheel axis on the load-bearing part. There are arms fulcrumed on the extensible body around axes parallel to the wheel axis. The arms are fitted, at their ends, with surfaces of engagement, which bear against the tire peripheral surface in the working position. The extensible body is placed on the load-bearing part in the guidance, which comprises at least two pipes, with one outer pipe placed slidingly on each of the pipes and attached to the extensible body. There are tensile springs arranged in the pipes, and these springs are attached by one end to the load bearing part, and by the other end to the extensible body.

This invention relates to a universal brake system (UBS) that combines features from an adjustable wheel traction system (WTS) and an improved anti-lock brake (ABS) system. The WTS provides a plurality of extendable and retractable spikes contained in a wheel assembly or wheel adapter to increase traction (friction) between a vehicle's wheel and its supporting surface. To further improve wheel traction each wheel spike has different types of changeable heads for different types of terrain and road surfaces. When operating in dry road mode, the UBS operates as an anti-lock braking system except the spikes can operate during emergency braking to provide additional traction between the tire and wheel support surface. When operating in slippery road mode, the UBS activates the WTS for increase traction control and utilize an improved computer controlled anti-lock braking system to alternate between wheel lock and anti-lock brake with skid control to provide the ultimate solution to decreasing a vehicle's stopping distance and controlling a vehicle's skid on slippery and dry road surfaces.

This invention relates to a universal brake system (UBS) that combines features from an adjustable wheel traction system (WTS) and an improved anti-lock brake (ABS) system. The WTS provides a plurality of extendable and retractable spikes contained in a wheel assembly or wheel adapter to increase traction (friction) between a vehicle's wheel and its supporting surface. To further improve wheel traction each wheel spike has different types of changeable heads for different types of terrain and road surfaces. When operating in dry road mode, the UBS operates as an anti-lock braking system except the spikes can operate during emergency braking to provide additional traction between the tire and wheel support surface. When operating in slippery road mode, the UBS activates the WTS for increase traction control and utilize an improved computer controlled anti-lock braking system to alternate between wheel lock and anti-lock brake with skid control to provide the ultimate solution to decreasing a vehicle's stopping distance and controlling a vehicle's skid on slippery and dry road surfaces.