METHOD OF CREATING MASTER DATA USED FOR INSPECTING CONCAVE-CONVEX FIGURE
First Claim
1. A method of creating master data used for inspecting a concave-convex figure formed on a surface of tire from tire CAD drawings, which have figures deformed according to a tire size and deformed into a sector form according to an arranging position in a radial direction from a tire center, and a height information of respective regions of the figure, comprising the steps of:
- cutting-out an image including the figure by selecting the figure from the tire CAD drawings; and
transforming respective regions of the cut-out image into a gray scale in accordance with a height information of respective regions obtained from the tire CAD drawings.
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Accused Products
Abstract
The present invention provides a method of creating master data used for inspecting a concave-convex figure, which can create accurate master data with no variation.
In the present invention, an image of respective figures is cut out by selecting a figure from tire CAD drawings, and an arranging position of the figure is set in accordance with a distance in a radial direction form a tire center and a deformed angle in a circumferential direction of the tire from a designated location, so that a height of respective regions of the cut-out image is set. Then, the cut-out image is transformed into an image having a gray scale in accordance with the height by using the height information of respective regions, and, at an arranging position of the figure, the image having a gray scale is sampled by a predetermined interval in a radial direction from a tire center and is sampled by a predetermined angle interval in a circumferential direction of the tire, so that master data are created by the image in such a manner that a distance between intersecting points becomes equal.
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Citations
4 Claims
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1. A method of creating master data used for inspecting a concave-convex figure formed on a surface of tire from tire CAD drawings, which have figures deformed according to a tire size and deformed into a sector form according to an arranging position in a radial direction from a tire center, and a height information of respective regions of the figure, comprising the steps of:
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cutting-out an image including the figure by selecting the figure from the tire CAD drawings; and transforming respective regions of the cut-out image into a gray scale in accordance with a height information of respective regions obtained from the tire CAD drawings. - View Dependent Claims (2)
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3. A method of creating master data used for inspecting a concave-convex figure formed on a surface of tire from tire CAD drawings, which have figures deformed according to a tire size and deformed into a sector form according to an arranging position in a radial direction from a tire center, and a height information of respective regions of the figure, comprising the steps of:
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cutting-out an image including the figure by selecting the figure from the tire CAD drawings; transforming respective regions of the cut-out image into a gray scale in accordance with a height information of respective regions obtained from the tire CAD drawings; and deforming the image transformed into a gray scale in accordance with the tire size and the arranging position in a radial direction from the tire center in such a manner that it becomes an original figure before deforming the figure included in the image transformed into a gray scale into the sector form.
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4. A method of creating master data used for inspecting a concave-convex figure formed on a surface of tire from tire CAD drawings, which have figures deformed according to a tire size and deformed into a sector form according to an arranging position in a radial direction from a tire center, and a height information of respective regions of the figure, comprising the steps of:
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cutting-out an image including the figure by selecting the figure from the tire CAD drawings; deforming the cut-out image in accordance with the tire size and the arranging position in a radial direction from the tire center in such a manner that it becomes an original figure before deforming the figure included in the cut-out image into the sector form; and transforming respective regions of the transformed image into a gray scale in accordance with a height information of respective regions obtained from the tire CAD drawings.
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Specification