Hub odometer
AssigneeThe Yokohama Rubber Co., Ltd.
InventorKazuhiro Shimura
Life of this patent
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Abstract
A hub odometer is disclosed, which includes: an eccentric weight rotably supported in a center axis position of an axle hub; a case attached to the axle hub to surround the eccentric weight; a non-contact measuring mechanism disposed to measure the number of revolutions in a relative relation to the case and the eccentric weight; and a transponder including a memory for storing measuring data of the measuring mechanism, a transmitting circuit for transmitting the data stored in the memory, and a receiver for receiving an interrogation wave from a remote unit, the transmitting circuit being actuated on the basis of the interrogation wave.
Claims4
A hub odometer comprising:
- an eccentric weight rotably supported in a center axis position of an axle hub;
- a case attached to the axle hub to surround the eccentric weight;
- a plurality of non-contact measuring mechanisms disposed to measure a number of revolutions in a relative relation to the case and the eccentric weight;
- and
- a transponder operative within a range of radio wave frequencies and including a memory for storing measuring data of the plurality of measuring mechanisms, a transmitting circuit for transmitting the data stored in the memory, and a receiver for receiving an interrogation wave from a remote unit, the transmitting circuit being actuated on the basis of the interrogation wave, wherein measuring positions of the plurality of measuring mechanisms are shifted from each other in a hub circumferential direction and rotational direction of a vehicle wheel is detected based upon the measuring data of the plurality of measuring mechanisms.
Dependencies are inferred from the claim text.