| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved chuck apparatus which provides an increased stroke length for storing various size tires, and applies a substantially constant force to lock the chuck members together. SOLUTION: The adjustable width chuck apparatus includes a first chuck adapted to receive a half-rim for contacting the bead of a tire, a first chuck including a rotatable spindle including a tapered male portion; a second chuck adapted to receive a half-rim for contacting the bead of a tire and movable toward and away from the first chuck; a second chuck including an extensible, rotatable chuck member, including a tapered female portion configured to receive the tapered male portion of the rotatable spindle; and a fluid-pressure-operated actuator operable to extend the chuck member with respect to the second chuck to move the tapered female portion into engagement with the tapered male portion of the spindle, wherein the actuator is disposed on an external portion of the chuck and provides a visual indication of the position of the extensible, tapered female portion of the chuck member with respect to the second chuck. COPYRIGHT: (C)2011,JPO&INPIT
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