| 摘要 |
An apparatus for automatically adjusting the rim width between upper and lower rims on a tire uniformity machine of the type includes an upper spindle rotatable about the axis thereof, a lower spindle located opposingly in vertical alignment with the upper spindle, the lower spindle being rotatable about the axis thereof and movable in the axial direction, and upper and lower rims detachably mounted coaxially on opposing end portions of the upper and lower spindles, respectively, to release grip therebetween a testing tire to be rotated and held in contact with a load wheel for inspection of uniformity. The rim width adjusting apparatus includes a ring-like adapter threaded on a lower end portion of the upper spindle and vertically movably supporting the upper rim on the upper spindle; and a rotation blocking device mounted on a bearing housing over the adapter for blocking rotation of the adapter relative to the upper spindle.
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