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

Claim 0:
1. A tire-trimming device provided with a rotation mechanism to rotate a tire and a trimming tool positioned on a tire outer surface of the tire, for removing, using the trimming tool while the tire is being rotated by the rotation mechanism, unnecessary rubber components formed on the tire outer surface when vulcanizing 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 tool comprising:
a plurality of different types of the trimming tool;
a profile sensor configured to detect, while the tire is being rotated by the rotation mechanism, a profile of a tire width direction cross section of the tire outer surface and a position thereof, the profile sensor being further configured to detect the profile while the profile sensor is rotated in the tire width direction at a constant radius from a center of rotation of the tire;
a control unit into which detection data detected by the profile sensor is input;
a movement mechanism causing at least one selected from the trimming tool and the tire to move relative to another of the at least one selected from the trimming tool and the tire, wherein the control unit is configured to set in advance the type of the trimming tool to be used according to a portion of the tire outer surface and when the unnecessary rubber components are removed, the control unit is further configured to set in advance the type of the trimming tool for use on the portion on which the unnecessary rubber components are formed is selected, and, the control unit is configured to control a movement of the movement mechanism on the basis of the detection data to position a tip end section of the selected trimming tool along the profile detected by the profile sensor and remove the unnecessary rubber components; and
a pressure sensor successively detecting a pressure with which the selected trimming tool presses the tire outer surface, wherein pressure data detected by the pressure sensor is input into the control unit, the selected trimming tool and the tire are caused to move relative to one another by the movement mechanism on the basis of the pressure data detected by the pressure sensor, and the pressure detected by the pressure sensor is maintained within an allowable pressure range.