Device for warning of tire underinflation by creating imbalance
First Claim
1. A device for warning of the under-inflation of a pneumatic tire when the pneumatic tire is mounted to a wheel, comprising means mountable to one of the vehicle wheel and tire for creating an imbalance in the wheel sufficient to alert a driver of a vehicle to which the wheel is mounted of the under-inflation of the tire, by vibrations arising due to the imbalance, only when an inflation pressure of the tire is below a given threshold pressure.
1 Assignment
0 Petitions
Accused Products
Abstract
Device (1, 2, 3, 4) for warning of the under-inflation of a tire, mounted the wheel of the tire, includes a stationary element (10, 71) with two inner chambers (11, 12, 73, 74), one (11, 73) of which is brought to the inflation pressure, the other (12, 74) to the atmospheric pressure, and a centrifugal mass (20, 72). A blocking device (30, 90) blocks any displacement of centrifugal mass (20, 72) when the inflation pressure is greater than a certain threshold and frees the centrifugal mass (20, 72) when the inflation pressure decreases below the inflation threshold. Centrifugal mass (20, 72) can then become off-centered under the effect of centrifugal forces and creates a dynamic imbalance able to be sensed by the driver of the vehicle.
19 Citations
20 Claims
- 1. A device for warning of the under-inflation of a pneumatic tire when the pneumatic tire is mounted to a wheel, comprising means mountable to one of the vehicle wheel and tire for creating an imbalance in the wheel sufficient to alert a driver of a vehicle to which the wheel is mounted of the under-inflation of the tire, by vibrations arising due to the imbalance, only when an inflation pressure of the tire is below a given threshold pressure.
- 6. A device for warning of the under-inflation of a pneumatic tire when the pneumatic tire is mounted to a wheel, comprising means mounted to the wheel for creating an imbalance in the wheel sufficient to alert a driver of a vehicle to which the wheel is mounted of the under-inflation of the tire, by vibrations arising due to the imbalance, only when an inflation pressure of the tire is below a given threshold pressure.
- 17. A wheel including a device for warning of the under-inflation of a pneumatic tire when the pneumatic tire is mounted to the wheel, the device comprising means mounted to the wheel for creating an imbalance in the wheel sufficient to alert a driver of a vehicle to which the wheel is mounted of the under-inflation of the tire, by vibrations arising due to the imbalance, only when an inflation pressure of the tire is below a given threshold pressure.
Specification