Automated tire measurement techniques

• US 4,434,652 A
• Filed: 01/18/1982
• Issued: 03/06/1984
• Est. Priority Date: 01/18/1982
• Status: Expired due to Term

• Current Assignee: Goodyear Tire & Rubber Company
• Original Assignee: Goodyear Tire & Rubber Company
• Inventors: Christie, William C.
• Primary Examiner(s): MYRACLE, JERRY
• Application Number:
  US06/339,876
• Time in Patent Office: 778 Days
• Field of Search: 73/146, 364/507, 364/560, 33/174 PC
• US Class Current: 73/146
• CPC Class Codes: G01B 7/28 for measuring contours or curvatures
• CPC Class Codes: G01M 17/02 Tyres

Abstract

An improvement in a tire manufacturing system including apparatus for testing by different combinations of testing algorithms and tire sensors. An operator selects the combinations best suited to test the tire according to the user'"'"'s specifications. The tire is rotated and measured for lateral runout of both sidewalls. The resulting data is converted to digital form and analyzed according to the selected combinations of sensors and testing algorithms.

Claims

1. In a tire manufacturing system including means for assembling and curing components of the tire and for testing the cured tire by detecting tire data from at least a first sensor means and a second sensor means and analyzing the data by at least a first testing algorithm and a second testing algorithm, improved apparatus for enabling an operator to select combinations of said sensor means and said testing algorithms in order to analyze the tire based on the selected combination, said apparatus comprising:

means for selecting at least one combination of said sensor means and a testing algorithm, each selected combination comprising at least one of said first and second sensor means and at least one of said first and second testing algorithms;

storage means for storing data obtained from the selected sensor means;

processing means for analyzing the data according to the selected testing algorithm; and

means for indicating the condition of the tire in response to the analysis of the data.

2. Apparatus, as claimed in claim 1, wherein tire data is detected by generating an analog signal and wherein the apparatus further comprises means for converting the analog signal to digital signals representing a plurality of tire dimensional values.

3. Apparatus, as claimed in claim 2, wherein the storage means comprises a digital memory.

4. Apparatus, as claimed in claim 1, wherein the means for selecting comprises a keyboard and a display screen.

5. Apparatus, as claimed in claim 1, wherein the means for selecting further enables the entry of at least one limit value defining an acceptable limit of a characteristic of the tire.

6. Apparatus as claimed in claim 5, wherein the processing means comprises means for determining the combination selected by the operator, for processing the selected testing algorithm according to the tire data derived from the selected sensor means in order to obtain a resulting value indicative of the condition of the tire and for comparing said resulting value against said limit value to determine whether the tire is acceptable, and

wherein the means for indicating comprises means for indicating the condition of the tire based on the comparison of said resulting value against said limit value.

7. Apparatus, as claimed in claims 1 or 6, wherein the means for indicating comprises means for marking the tire.

8. Apparatus, as claimed in claims 1 or 6, wherein the means for indicating comprises means for gating the tire.

9. In a tire manufacturing process including assembling and curing components of the tire and testing the cured tire by detecting tire data from at least a first sensor means and a second sensor means and analyzing the data by at least a first testing algorithm and a second testing algorithm, an improved method for enabling an operator to select combinations of said sensor means and said testing algorithms in order to analyze the tire based on the selected combination, said method comprising the steps of:

generating signals representative of at least one combination of sensor means and a testing algorithm, each said combination comprising at least one of said first and second sensor means and at least one of said first and second testing algorithms;

storing data obtained from the represented sensor means;

analyzing the data according to the represented testing algorithm; and

indicating the condition of the tire in response to the analysis of the data.

10. A method, as claimed in claim 9, wherein tire data is detected by generating an analog signal and wherein the method further comprises converting the analog signal to digital signals representing a plurality of tire dimensional values.

11. A method, as claimed in claim 9, wherein the step of generating comprises generating a signal representing at least one limit value defining an acceptable limit of a characteristic of the tire.

12. A method, as claimed in claim 11, wherein the step of analyzing comprises the steps of:

processing the represented testing algorithm according to the tire data derived from the represented sensor means in order to obtain a resulting value indicative of the condition of the tire, and

comparing said resulting value against said limit value to determine whether the tire is acceptable, and

wherein the step of indicating comprises the step of indicating the condition of the tire based on the comparison of said resulting value against said limit value.

13. A method, as claimed in claims 9 or 12, wherein the step of indicating comprises marking the tire.

14. A method, as claimed in claims 9, or 12, wherein the step of indicating comprises gating the tire.