Method for the detection of cable spacing in green tire

Patent metadata

Field	Value
Publication number	US-12117290-B2
Application number	US-202017995603-A
Country	US
Kind code	B2
Filing date	Jun 25, 2020
Priority date	Jun 25, 2020
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

A method for use in the construction of tires is provided for sensing spacing between a plurality of radial cables in a tissue is provided. The method utilizes a probe that has a first magnet, a second magnet, a magnetic bridge, and a spacing hall effect sensor. The magnets are spaced from one another in a probe first length direction, and the spacing hall effect sensor is located between the magnets in the probe first length direction. The spacing hall effect sensor is located between the magnetic bridge and the cables in a probe second height direction when the probe is positioned next to the partially constructed tire. The probe is placed next to the partially constructed tire such that the first cable direction is not parallel to the probe first length direction. The probe is then used to sense spacing between successive ones of the cables.

First claim

What is claimed is:

1. A method for use in the construction of tires, comprising:
providing a partially constructed tire that is not cured that has a tissue with a plurality of cables that are radial cables of the tire, wherein the plurality of cables extend in a first cable direction and are arranged next to one another in a second cable direction;
providing a probe that has a first magnet, a second magnet, a magnetic bridge, and a spacing hall effect sensor, wherein the probe has a probe first length direction and the first and second magnets are spaced from one another in the probe first length direction, wherein the spacing hall effect sensor is located between the first magnet and the second magnet in the probe first length direction, wherein the probe has a probe second height direction that is perpendicular to the probe first length direction, wherein the spacing hall effect sensor is located between the magnetic bridge and the plurality of cables in the probe second height direction when the probe is positioned next to the partially constructed tire, wherein the probe has a probe third width direction that is perpendicular to the probe first length direction;
positioning the probe next to the partially constructed tire such that the first cable direction is not parallel to the probe first length direction such that the positioning the probe results in an orientation angle between the first cable direction and the probe first length direction that is from 10 degrees to 55 degrees;
moving the probe and the tire relative to one another in the second cable direction; and
sensing spacing between successive ones of the cables of the plurality of cables by use of the probe and the relative movement between the tire and the probe in the second cable direction.

2. The method as set forth in claim 1 , wherein the partially constructed tire has a belt package thereon that is located outward of the tissue with the plurality of cables.

3. The method as set forth in claim 1 , wherein the partially constructed tire is in a confirmation stage of building.

4. The method as set forth in claim 1 , wherein the partially constructed tire is inflated.

5. The method as set forth in claim 1 , wherein the tissue with the plurality of cables that are radial cables of the tire is an outermost layer of the partially constructed tire when sensing spacing.

6. The method as set forth in claim 1 , wherein the orientation angle is 20 degrees.

7. The method as set forth in claim 1 , wherein the spacing hall effect sensor is arranged in a vertical orientation.

8. The method as set forth in claim 1 , wherein the probe has a damaged wire hall effect sensor that is located between the first magnet and the second magnet in the probe first length direction, wherein the damaged wire hall effect sensor is located between the magnetic bridge and the plurality of cables in the probe second height direction when the probe is positioned next to the partially constructed tire,
wherein the sensing spacing between successive ones of the cables of the plurality of cables by use of the probe is conducted by obtaining output from the spacing hall effect sensor;
and further comprising sensing broken ones of the cables of the plurality of cables by use of the probe by obtaining output from the damaged wire hall effect sensor.

9. The method as set forth in claim 8 , wherein the output from the damaged wire hall effect sensor is used to sense touching between successive ones of the plurality of cables, and wherein the output from the damaged wire hall effect sensor is used to sense crossing cables of the plurality of cables, and wherein the output from the damaged wire hall effect sensor is used to sense damaged cables of the plurality of cables.

10. The method as set forth in claim 8 , wherein the spacing hall effect sensor is oriented at a 90 degree angle to the damaged wire hall effect sensor.

11. The method as set forth in claim 8 , wherein the damaged wire hall effect sensor is arranged in a horizontal orientation and wherein the spacing hall effect sensor is arranged in a vertical orientation such that the damaged wire hall effect sensor has a greater surface area facing the plurality of cables than does the spacing hall effect sensor.

12. The method as set forth in claim 1 , wherein the magnetic bridge engages the first magnet and engages the second magnet and extends completely from the first magnet to the second magnet.

13. The method as set forth in claim 12 , wherein a south pole of the first magnet engages the magnetic bridge, and wherein a north pole of the second magnet engages the magnetic bridge.

14. The method as set forth in claim 1 , wherein the probe is spaced from the partially constructed tire and is free from engagement with the partially constructed tire, wherein the probe is spaced 3 millimeters from the partially constructed tire.

15. The method as set forth in claim 1 , wherein the second cable direction is a circumferential direction, and wherein the moving the probe and the tire relative to one another is created by rotating the tire 360 degrees.

Assignees

• Michelin & Cie

Inventors

• Johnson Ben
• Deamicis Gene
• Pullara Jake
• Bear Zoo

Classifications

• G01R33/077

  Vertical Hall-effect devices · CPC title

• G01R33/072

  Constructional adaptation of the sensor to specific applications · CPC title

• G01R33/0005

  Geometrical arrangement of magnetic sensor elements; Apparatus combining different magnetic sensor types (G01R33/0206 takes precedence) · CPC title

• G01M17/02

  Tyres · CPC title

• G01N27/83

  by investigating stray magnetic fields · CPC title