| 摘要 |
A tool operable to expand an end of a pipe includes a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal 5 axis and a rotation collar rotationally coupled to each of the plurality of jaws, A shuttle is selectively engageable with the rotation collar and is rotatable between a first orientation and a second orientation and a spindle is movable between a first position in which the shuttle is in the first orientation and is disengaged from the rotation collar, a second position in which the shuttle is in the first orientation and is engaged with the 10 rotation collar, and a third position in which the shuttle and the rotation collar are rotated together to the second orientation. The rotation of the rotation collar produces a corresponding rotation of the plurality of jaws while the plurality of jaws is in the closed position. Movement of the spindle to a fourth position moves the plurality of jaws to the expanded position and maintains the engagement of the shuttle and the 15 rotation collar in the second orientation. 2EISJ3'73 ,_1 (OHM. tt~tr's i/0 4/12 |
