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US 4,169,497 AGranted
Method and device for automatically increasing the restoring force of a pneumatic tire
OwnerYasuo Tsurutainventor
Life of this patent
Estimating the term…
Abstract
A method and device for automatically increasing the restoring force of a pneumatic tire characterized in that the centrifugal force created by rotation of the tire is caused to act on a liquid within a large diameter chamber of a centrifugal pump and the thus highly pressurized liquid is forced into the tire, so that the deformation of the wheel tread of the tire during operation of a vehicle is rapidly restored.
Claims5
Apparatus for automatically increasing the restoring force of a pneumatic tire comprising,
- a rim;
- a pneumatic tire on the rim;
- a liquid containing bag extending along an internal surface of the tire in opposed relation to a tread of the tire;
- an air chamber between the rim and the liquid bag;
- a liquid containing chamber on said rim;
- passage means connecting said chamber to said bag;
- said liquid chamber and passage means comprising means for centrifugally forcing liquid into said bag in proportion to the rotational speed of the tire so that liquid forced into said bag increases the pressure in the air chamber of the tire and the centrifugal force of the liquid rapidly restores deformation of the tread.
4 more elements
A method for automatically increasing the restoring force of a pneumatic tire containing air which comprises the steps of,
- forcing pressurized liquid into a liquid bag provided along the internal tread surface of a tire body in proportion to the rotation speed of the tire to displace air in the tire and increase the pressure in the tire, and
- causing the centrifugal force of the liquid supplied to the liquid bag to act on the tread in response to the speed of rotation of the tire.
Dependencies are inferred from the claim text.