Device and method for monitoring and calibrating a device for measuring the profile depth of a tyre
US9476801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2013 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Dec 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring the profile of the tread of a tire (12) comprises: a running surface (16), which is provided for the tire (12) to roll on and in which at least one measurement slot (14) is formed; at least one illumination apparatus (4), which is formed and arranged in such a manner that during operation it projects a plurality of light lines (6) through the measurement slot (14) onto the profile to be measured; and at least one image capture apparatus (18), which is formed to capture at least one image of at least one region of the profile to be measured. At least one monitoring and calibration device (22) is formed at at least one measurement slot (14), said monitoring and calibration device having at least one channel-shaped depression (24), which faces the illumination apparatus (4). The at least one depression (24) is formed at an angle to the plane of the running surface (16), which is parallel to the direction of a light beam, which in the proper state is emitted by the illumination apparatus (4) and is incident into the depression (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.