Patent ID: 11878482
Assignee: THE YOKOHAMA RUBBER CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 8:
9. A tire-trimming method for removing unnecessary rubber components formed on a tire outer surface when vulcanizing the tire, using a trimming tool while rotating the tire, the unnecessary rubber components being spew or a thin rubber film formed on a portion corresponding to a joint of a mold, the tire-trimming method comprising the steps of:
detecting, using a profile sensor, a profile of a tire width direction cross section of the tire outer surface and a position thereof, while the tire is being rotated and while the profile sensor is rotated in the tire width direction at a constant radius from a center of rotation of the tire;
inputting data detected by the profile sensor into a control unit;
setting in advance, in the control unit, a type of the trimming tool to be used according to a portion of the tire outer surface; selecting, from among a plurality of different types of the trimming tool, the trimming tool set in advance to be used on the portion on which the unnecessary rubber components are formed, when removing the unnecessary rubber components;
controlling a movement of a movement mechanism, using the control unit, on the basis of detection data detected by the profile sensor;
successively detecting a pressure, using a pressure sensor, with which the selected trimming tool presses the tire outer surface, wherein the selected trimming tool and the tire are caused to move relative to one another by controlling the movement of the movement mechanism, using the control unit, on the basis of pressure data detected by the pressure sensor, and the pressure detected by the pressure sensor is maintained within an allowable pressure range;
moving the selected trimming tool and the tire relative to one another;
positioning a tip end section of the selected trimming tool along the profile detected by the profile sensor; and
removing the unnecessary rubber components.