Abstract:
A wheel for mounting a tire thereon is provided. The wheel includes a wheel rim including a pressurized air reservoir, at least one air input to the wheel rim being coupled to the pressurized air reservoir, and at least one valve coupled between the pressurized air reservoir and a corresponding at least one air output from the wheel rim, the at least one valve configured to selectably supply pressurized air to an interior of the tire when mounted on the wheel rim.
Abstract:
An adaptive tire system can include retractable and extendable bolts for enhancing traction, for example, on ice-covered roadways. The system can include pneumatically operated bolt assemblies mounted inside a tire having custom reinforced belts. The bolt assemblies can include locking devices configured to be biased towards a locked position so as to lock deployable bolts into extended and/or retracted positions without the need for persistently or continuously applied actuation force or energy. The system can include wheel-mounted, manually operated controls or remote and/or automated controls. The system can include rotary unions for transmitting actuation controls from a vehicle body into an associated wheel. The bolts can also be adjustable and can include removable and replaceable tips serviced from tire exterior while inflated, deflated, on wheel or off wheel.
Abstract:
A retractable stud pin assembly is described for use in a conventional tire. The stud pin assembly includes a housing having an elastomer compartment and a spring in cooperation with the elastomer. A stud pin is mounted to the spring. The assembly may further optionally include a fluid compartment in cooperation with the elastomer compartment and the spring. The assembly may further include a second compression spring, which cooperates with the first spring and stud pin. An optional adjustment nut may be used to manually raise and lower the pin height as desired. An optional adjustment pin may also be used to extend into an optional fluid compartment to fine tune the pin height.
Abstract:
A tire includes a carcass, a tread band having a radially outer tread surface and a plurality of radially extending recesses, and an anti-slip structure disposed in one of the radially extending recesses. The structure includes a cylindrical housing with a cylindrical flange and a central channel and a stud portion with a shaft and a flange. The shaft is slidingly disposed within the central channel such that a radially outer tip of the shaft may selectably extend radially outward from the cylindrical housing and from the radially outer tread surface in order to enhance traction for the tire. The radially outer tip extends from the cylindrical housing and from the radially outer tread surface when a predetermined air pressure is introduced into the radially extending recess thereby forcing the flange of the stud portion radially outward to abut the cylindrical flange of the cylindrical housing.
Abstract:
A retractable stud pin assembly is described for use in a conventional tire. The stud pin assembly includes a housing having an elastomer compartment and a spring in cooperation with the elastomer. A stud pin is mounted to the spring. The assembly may further optionally include a fluid compartment in cooperation with the elastomer compartment and the spring. The assembly may further include a second compression spring, which cooperates with the first spring and stud pin. An optional adjustment nut may be used to manually raise and lower the pin height as desired. An optional adjustment pin may also be used to extend into an optional fluid compartment to fine tune the pin height.
Abstract:
A tire for vehicles offering low rolling resistance wherein the ground-contact surface area is variable as a portion of the tread part can be retracted and/or extended using pneumatic, mechanical or hydraulic force to withdraw from, or come into contact with the road surface before, during or after operation permitting more efficient operation wherein the material used within the tread part that retains contact with the road may generally have a smaller internal friction loss than the material used in conventional tires and the rolling resistance is thereby reduced when the retractable portion of the tread is selectively withdrawn from contact with the road surface furthermore achieving a smaller ground-contact patch footprint. The achieved object of a tire with a lower rolling resistance yields improved fuel consumption efficiency. Improvements in exterior and interior noise levels and a reduced tendency to exhibit hydroplaning action are also attained with a variable groove volume to tread surface-contact ratio. Within one embodiment of the present invention, an automated microcomputer-based tire control system is disclosed useable to command the motion of the moveable tread portion of the said tire in response to various operational scenarios.
Abstract:
A tire structure including a secondary chamber formed between a tire casing and road engaging tire tread. A first air passage provided from the tire interior to the secondary chamber and a second air passage through a side wall of the tire casing substantially adjacent a bead portion of the tire. An air line extends between the two air passages and is bonded to the interior side wall of the casing, and a valve unit associated with said second passage to provide controlled air inlet and relief to said chamber.
Abstract:
An automobile tire having retractable tread studs for increasing traction of the tire on slippery surfaces which are actuated by air pressure that is controlled by the automobile driver from the driver's seat.
Abstract:
Apparatus for remotely controlling the pressure in a pneumatic tire in which a pneumatic chamber communicating with a tube inserted in a tire and a chamber whose internal pressure is remote-controlled from the cab are aligned on the same axle of a vehicle. The piston penetrates into both chambers and the internal pressure in the tube can be adjusted by changing the internal volume of the pneumatic chamber due to displacement of the piston.