Tire balance measuring device

摘要

The present invention provides a tire balance measuring device capable of minimizing the influence exerted on a measured value due to an inclination of a lock shaft even when the lock shaft (fitted shaft) is inclined in a random direction at an angle created by a gap corresponding to a fitting allowance every time a tire is supplied with gas. The tire balance measuring device of this invention comprises a sensor for measuring the inclination of the lock shaft, and a computing unit for computing an amount of change in a unbalance of the tire from an output value received from the sensor after the tire is supplied with gas, and correcting a result of measuring a balance of the tire using the computed amount of change in the unbalance.

主权项

1. A tire balance measuring device, comprising:
a rim rotation supporting shaft vertically and rotatably supported via a bearing by a housing; a lower rim mounted on the rim rotation supporting shaft; a locking shaft inserted into a fitting hole in the rim rotation supporting shaft; an upper rim mounted on the locking shaft and arranged above the lower rim; a locking component for causing the locking shaft to be engaged at a desired height with the rim rotation supporting shaft and fixed thereto; at least two sensors for measuring an inclination of the locking shaft, and a correction computing unit for computing an amount of change in an unbalance of a tire based on an output value received from the sensors after the tire is supplied with gas, and correcting a result of measuring a balance of the tire using the computed amount of change in the unbalance.