Tire testing machine and process
AssigneeMichelin Recherche et Technique S.A.
InventorDenis Deniau
Life of this patent
Estimating the term…
Abstract
To measure a tire and check that its characteristics conform with those expected, a unique machine is provided which can take into account the parameters corresponding to a test carried out with or without load, whether at rest or in rotation, and whether static or dynamic. It is shown that by choosing to mount the tire vertically in the machine with its rotation axis horizontal, all the calibration problems of machines of the prior art are resolved. In particular, a roller (22) in contact with the tire is provided with piezoelectric cells (Y, Z) which measure applied forces, while in addition the machine itself rests on pads (17-18) provided with piezoelectric cells to measure the forces it supports.
Claims19
A tire testing machine, comprising a device for holding the tire and a means for measuring the characteristics of the tire held, wherein the measuring means comprises sensors positioned in a base upon which the machine rests on the ground.
A process for testing a tire, wherein the tire is placed in a machine comprising a device for holding the tire and a device for measuring the characteristics of the tire held, wherein the measuring device is located in a base upon which the machine rests on the ground.
Dependencies are inferred from the claim text.