Tire magnetization method, tire magnetized by the tire magnetiza

Details Tire magnetization method, tire magnetized by the tire magnetiza Tire magnetization method, tire magnetized by the tire magnetiza

1997-09-25

2000-08-15

Fleming, Fritz

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

B29H 1700

Patent

active

061045934

ABSTRACT:
A magnetization magnet (11) is brought into contact with or close to the outer circumferential surface of a tire (12) that has a steel belt in its outer circumferential portion, and is relatively moved along the circumferential direction of the tire (12) so that the magnetic field generated by the magnetization magnet (11) runs in the circumferential direction of the tire. (12), thereby magnetizing the tire (12). The entire perimeter of the outer circumferential portion of the tire (12) is continuously magnetized in one direction along the circumferential direction. After the polarities of the magnetization magnet (11) are inverted with respect to the circumferential direction of the tire (12), an angle range smaller than 360.degree. on the outer circumferential portion of the tire is continuously re-magnetized in a direction opposite to the one direction. In a magnetic field detection method, a magnetic field is differentially detected by two magnetic detection elements, which are set so that the magnetic field detection directions of the two magnetic detection elements are parallel to the side surface of the tire, and the two elements are juxtaposed in a direction perpendicular to the side surface of the tire.

REFERENCES:
patent: 3768532 (1973-10-01), Arai
patent: 4745363 (1988-05-01), Carr et al.
patent: 4851771 (1989-07-01), Ikeda et al.
European Search Report EP 97 11 6782 dated Nov. 5, 1998.
European Search Report EP 97 11 6782 (Feb. 17, 1999).

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