This disclosure relates to a wheel assembly (1) comprising a wheel, a deformable chamber (6) containing a transition substance (15) comprising jamming particles and an interstitial gas, and an actuator (14) configured to transform the transition substance (15) between a fluid state in which the deformable chamber (6) can deform into a conformal state as the wheel encounters an obstacle during use, and a rigid state by evacuation of the interstitial gas in which the transition substance is rigidified to maintain the deformable chamber (6) in said conformal state to provide increased purchase on said obstacle.

This disclosure relates to a wheel assembly (1) comprising a wheel, a deformable chamber (6) containing a transition substance (15) comprising jamming particles and an interstitial gas, and an actuator (14) configured to transform the transition substance (15) between a fluid state in which the deformable chamber (6) can deform into a conformal state as the wheel encounters an obstacle during use, and a rigid state by evacuation of the interstitial gas in which the transition substance is rigidified to maintain the deformable chamber (6) in said conformal state to provide increased purchase on said obstacle.

An inner tube comprising a unitary tube segmented into a plurality of chambers, the plurality of chambers interconnected therebetween. A plurality of interconnections may be respectively configured between the plurality of chambers wherein the plurality of interconnections may be operable to control airflow between adjacent ones of the plurality of chambers. A valve coupled to the unitary tube, the valve operable to allow introduction of air into the plurality of chambers through the plurality of interconnections.

An inner tube comprising a unitary tube segmented into a plurality of chambers, the plurality of chambers interconnected therebetween. A plurality of interconnections may be respectively configured between the plurality of chambers wherein the plurality of interconnections may be operable to control airflow between adjacent ones of the plurality of chambers. A valve coupled to the unitary tube, the valve operable to allow introduction of air into the plurality of chambers through the plurality of interconnections.

An inner tube comprising a unitary tube segmented into a plurality of chambers, the plurality of chambers interconnected therebetween. A plurality of interconnections may be respectively configured between the plurality of chambers wherein the plurality of interconnections may be operable to control airflow between adjacent ones of the plurality of chambers. A valve coupled to the unitary tube, the valve operable to allow introduction of air into the plurality of chambers through the plurality of interconnections.

A wheel resonator for reducing a resonance phenomenon inside a tire of a vehicle may include a plurality of wheel resonators mounted to a tire wheel. First and second wheel resonators of the plurality of wheel resonators are fixed with each other by a fastening part including a protrusion disposed on an end of the first wheel resonator penetrating through a hole disposed in an end of the second wheel resonator. An end portion of the protrusion has a size greater than a size of the hole. As such, quality of a wheel through more reliable noise reduction by making a wheel resonator in a manner of forming a fitting type fastening part in the wheel resonator itself and fixing the wheel resonator by ultrasonic welding can be improved.

A wheel resonator for reducing a resonance phenomenon inside a tire of a vehicle may include a plurality of wheel resonators mounted to a tire wheel. First and second wheel resonators of the plurality of wheel resonators are fixed with each other by a fastening part including a protrusion disposed on an end of the first wheel resonator penetrating through a hole disposed in an end of the second wheel resonator. An end portion of the protrusion has a size greater than a size of the hole. As such, quality of a wheel through more reliable noise reduction by making a wheel resonator in a manner of forming a fitting type fastening part in the wheel resonator itself and fixing the wheel resonator by ultrasonic welding can be improved.

An air pipe device of an air compressor contains a connector of an air pipe configured to output fluid pressure so as to inflate airs and to feed sealant when the air compressor operates. The air pipe device contains a connection pipe, and the connection pipe includes an open segment defined on a first end thereof and configured to connect with the connector of the air pipe of the air compressor. In addition, the connection pipe includes a stop segment formed on a second end thereof, such that the connection pipe is configured to connect a twin tire with the connector of the air compressor so as to inflate airs and feed sealant.

A self-sealing pneumatic tire having at least one cohesive sandwich radially inward of the pneumatic tire is provided. The at least cohesive sandwich may include a cohesive material under pressure, facilitating a recovery capacity upon being pierced by a sharp object, whereby the molecules of the cohesive material cohesively reattach, self-sealing any passageway or space created by the sharp object. The self-sealing pneumatic tire may also provide a loculated-diamond-section layer located radially inward of the outer cohesive sandwich, further supporting the self-sealing pneumatic tire. The external rubber tread are disposed along the circumference of the tire in some embodiments can be separate from the surface of the tire yet secured in place by attachments. Once fully utilized, this external rubber tread can be replaced by a new version without having to replace the entire tire.

A self-sealing pneumatic tire having at least one cohesive sandwich radially inward of the pneumatic tire is provided. The at least cohesive sandwich may include a cohesive material under pressure, facilitating a recovery capacity upon being pierced by a sharp object, whereby the molecules of the cohesive material cohesively reattach, self-sealing any passageway or space created by the sharp object. The self-sealing pneumatic tire may also provide a loculated-diamond-section layer located radially inward of the outer cohesive sandwich, further supporting the self-sealing pneumatic tire. The external rubber tread are disposed along the circumference of the tire in some embodiments can be separate from the surface of the tire yet secured in place by attachments. Once fully utilized, this external rubber tread can be replaced by a new version without having to replace the entire tire.