Abstract:
A peristaltic pump chamber with shape memory for pressure adjustment in tires is provided and which is part of the tire or is adjacent to the tire wall or is a part of a vehicle wheel, in particular for tires with an inner tube, e.g. bicycle tires.
Abstract:
When (I) a tyre 1 is in contact with a flat surface (S) with a camber angle θ of 40 degrees, (II) a load (F) applied to the tyre is increased from zero, and (III) a curve (T) is obtained by plotting, in a XY coordinate, a displacement (Δx) in a tyre axial direction and a displacement (Δy) in a tyre radial direction of a position (A) of one of tyre tread edges (Te) closer to the flat surface (S), the displacements being from a reference position (A0) when the load (F) is zero, inclination of the curve (T) increases as the load (F) increases at least in a range where the load (F) is not more than 78% of a maximum load capacity load of the tyre.
Abstract:
An insert for a pneumatic tire including an annular member adapted to contact at least 10% of an interior surface of the pneumatic tire and provide an outward pressure thereagainst.
Abstract:
In accordance with embodiments of the present disclosure an inner tube comprises an encasing configured to hold air. The encasing comprises a reinforcing structure configured such that, as the encasing is inflated, an overall major diameter of the inner tube is reduced. The inner tube also comprises an inflation valve coupled to the encasing and configured to allow inflation of the encasing. Further, the inner tube comprises a pressure valve coupled to the encasing. The pressure valve is configured to be biased closed and allow air to leave the encasing when a differential pressure between inside of the encasing and outside of the encasing reaches a threshold pressure level. In the same or alternative embodiments, the encasing also comprises a reinforcing structure configured such that, as the encasing is inflated, an overall major diameter of inner tube is reduced.
Abstract:
A safety tire with relatively even temperature distribution in the tire and an air bladder used for it are provided by smoothly flowing air filled in the tire over the entire tire inside in the air filled state even when an air bladder is housed in a tire. A safety tire 1 is provided with a tire 2 and an air bladder 3 in the hollow toric shape. In the air-filled state, a cavity S1 is formed between the outer surface 8 of the air bladder 3 and the inner surface 9 of the tire 2. In the runflat state, the air bladder 3 is inflated and deformed to take over load support from the tire 2. The air bladder 3 has a raised portion 12 on a specific outer surface area A so as to form a flow passage 13 through which air can flow between the rim and the air bladder. The raised portion 12 has on the side face a rigid reinforcing portion 15 whose width is gradually increased from the top face 14 side to the flow passage 13. The ratio of the flow passage 13 to the specific outer surface area A is in the range of 50 to 95% by area ratio.
Abstract:
A toric membrane of reinforced rubber, used as a supporting means for the tread of a tubeless tire, and forming with said tire and its mounting rim a traveling assembly, characterized in that, inflated to a pressure po greater than the pressure p1 of the cavity of the tire, it has, in the inflated state, a crown radius RM less than the loaded radius RE of the tire used at its recommended pressure, said membrane being reinforced, at least in its crown, by a crown reinforcement and a hooping reinforcement, composed of cords or cables oriented circumferentially.
Abstract:
An inner tube for a vehicle tire, including a base, the base having two outer walls, two inner walls, an annular air chamber connected between the inner walls, and a plurality of rubber coated breakers retained between the inner walls and the outer walls and arranged in a zigzag manner around the axial central axis of the base, and a multi-cell tube mounted around the annular master air chamber between the inner walls of the base, the multi-cell tube having arched cells of different sizes arranged around its center, a plurality of foamed rubber blocks and a plurality of glued breakers alternatively plugged into the arched cells, and a layer of patching agent covered over the arched cells to seal the foamed rubber blocks and the glued breakers in the arched cells.