초록 ▼

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 axis and a rotation collar rotationally coupled to each of the plurality of jaws. A shuttle is selectively engageable with the rotatio

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 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 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 rotation collar in the second orientation.

대표청구항 ▼

1. A tool operable to expand an end of a pipe, the tool comprising: a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis;a rotation collar rotationally coupled to each of the plurality of jaws;a shuttle, selectively engageable with th

1. A tool operable to expand an end of a pipe, the tool comprising: a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis;a rotation collar rotationally coupled to each of the plurality of jaws;a shuttle, selectively engageable with the rotation collar and rotatable between a first orientation and a second orientation; anda spindle 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 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 producing a corresponding rotation of the plurality of jaws while the plurality of jaws is in the closed position, wherein 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 rotation collar in the second orientation. 2. The tool of claim 1, wherein one of the rotation collar and the plurality of jaws includes an extension and the other of the rotation collar and the plurality of jaws includes a recess sized to receive the extension, and wherein the extension and the recess cooperate to couple the rotation collar and the plurality of jaws for rotation while allowing the jaws to expand with respect to the rotation collar. 3. The tool of claim 1, wherein the rotation collar includes a first plurality of teeth and the shuttle includes a second plurality of teeth, the second plurality of teeth engageable with the first plurality of teeth to couple the rotation collar and the shuttle for rotation while allowing the shuttle to move freely along the longitudinal axis. 4. The tool of claim 1, further comprising a first biasing member positioned between the shuttle and the spindle and operable to bias the shuttle toward the rotation collar. 5. The tool of claim 1, further comprising a second biasing member positioned between the shuttle and the rotation collar and operable to bias the shuttle away from the rotation collar. 6. The tool of claim 1, wherein the shuttle includes a pin and the spindle includes an L-shaped slot having a short portion that is substantially normal to the longitudinal axis and a long portion that is parallel to the longitudinal axis, and wherein the pin is movably disposed within the L-shaped slot. 7. The tool of claim 6, wherein the pin is disposed within the short portion when the shuttle is between the first position and the second position such that the shuttle and the spindle move along the longitudinal axis in unison between the first position and the second position. 8. The tool of claim 6, wherein the short portion of the L-shaped slot guides the rotation of the shuttle from the first orientation to the second orientation of the shuttle as the spindle moves from the second position to the third position. 9. The tool of claim 6, wherein the pin moves along the long portion of the L-shaped slot to allow the spindle to move between the third position and the fourth position without moving the shuttle. 10. The tool of claim 1, further comprising a sleeve having an aperture that defines a cam surface, the pin disposed within the aperture and selectively engageable with the cam surface such that movement of the spindle from the second position to the first position forces the pin into engagement with the cam surface such that the cam surface forces rotation of the shuttle to the first orientation. 11. The tool of claim 1, further comprising a wedge coupled to the spindle, the wedge engageable with the plurality of jaws to move the jaws between the closed position and the expanded position. 12. A tool operable to expand an end of a pipe, the tool comprising: a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis;a shuttle, selectively engageable with the plurality of jaws and rotatable between a first orientation and a second orientation;a spindle selectively coupled to the shuttle such that the spindle and the shuttle move between a first position and a second position in unison, wherein the shuttle is in the first orientation and is disengaged from the plurality of jaws when the spindle is in the first position and the shuttle is in the first orientation and is engaged with the plurality of jaws when the spindle is in the second position, and wherein further movement of the spindle from the second position toward a third position in which the spindle engages the plurality of jaws to move the jaws to an expanded position produces rotation of the shuttle to the second orientation;a sleeve coupled to the shuttle and including a cam surface, the cam surface engagable with the shuttle as the spindle moves from the second position to the first position to rotate the shuttle to the first orientation; anda first biasing member positioned between the shuttle and the spindle and operable to bias the shuttle toward the plurality of jaws. 13. The tool of claim 12, further comprising a second biasing member positioned between the shuttle and the plurality of jaws and operable to bias the shuttle away from the plurality of jaws. 14. A tool operable to expand an end of a pipe, the tool comprising: a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis;a shuttle, selectively engageable with the plurality of jaws and rotatable between a first orientation and a second orientation;a spindle selectively coupled to the shuttle such that the spindle and the shuttle move between a first position and a second position in unison, wherein the shuttle is in the first orientation and is disengaged from the plurality of jaws when the spindle is in the first position and the shuttle is in the first orientation and is engaged with the plurality of jaws when the spindle is in the second position, and wherein further movement of the spindle from the second position toward a third position in which the spindle engages the plurality of jaws to move the jaws to an expanded position produces rotation of the shuttle to the second orientation;a sleeve coupled to the shuttle and including a cam surface, the cam surface engagable with the shuttle as the spindle moves from the second position to the first position to rotate the shuttle to the first orientation; anda rotation collar disposed between the shuttle and the plurality of jaws, wherein the rotation collar is coupled to the plurality of jaws and is selectively engageable with the shuttle. 15. The tool of claim 14, wherein one of the rotation collar and the plurality of jaws includes an extension and the other of the rotation collar and the plurality of jaws includes a recess sized to receive the extension, and wherein the extension and the recess cooperate to couple the rotation collar and the plurality of jaws for rotation while allowing the jaws to expand with respect to the rotation collar. 16. The tool of claim 14, wherein the rotation collar includes a first plurality of teeth and the shuttle includes a second plurality of teeth, the second plurality of teeth engageable with the first plurality of teeth to couple the rotation collar and the shuttle for rotation while allowing the shuttle to move freely along the longitudinal axis. 17. A tool operable to expand an end of a pipe, the tool comprising: a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis;a shuttle, selectively engageable with the plurality of jaws and rotatable between a first orientation and a second orientation;a spindle selectively coupled to the shuttle such that the spindle and the shuttle move between a first position and a second position in unison, wherein the shuttle is in the first orientation and is disengaged from the plurality of jaws when the spindle is in the first position and the shuttle is in the first orientation and is engaged with the plurality of jaws when the spindle is in the second position, and wherein further movement of the spindle from the second position toward a third position in which the spindle engages the plurality of jaws to move the jaws to an expanded position produces rotation of the shuttle to the second orientation;a sleeve coupled to the shuttle and including a cam surface, the cam surface engagable with the shuttle as the spindle moves from the second position to the first position to rotate the shuttle to the first orientation, wherein the shuttle includes a pin and the spindle includes an L-shaped slot having a short portion that is substantially normal to the longitudinal axis and a long portion that is parallel to the longitudinal axis, and wherein the pin is movably disposed within the L-shaped slot. 18. The tool of claim 17, wherein the pin is disposed within the short portion when the shuttle is between the first position and the second position such that the shuttle and the spindle move along the longitudinal axis in unison between the first position and the second position. 19. The tool of claim 17, wherein the short portion of the L-shaped slot guides the rotation of the shuttle from the first orientation to the second orientation of the shuttle as the spindle moves from the second position to the third position. 20. The tool of claim 17, wherein the pin moves along the long portion of the L-shaped slot to allow the spindle to move between the third position and the fourth position without moving the shuttle. 21. The tool of claim 17, wherein the sleeve includes an aperture that defines the cam surface, the pin disposed within the aperture and selectively engageable with the cam surface such that movement of the spindle from the second position to the first position forces the pin into engagement with the cam surface to rotate the shuttle from the second orientation to the first orientation. 22. A tool operable to expand an end of a pipe, the tool comprising: a plurality of jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis;a shuttle, selectively engageable with the plurality of jaws and rotatable between a first orientation and a second orientation;a spindle selectively coupled to the shuttle such that the spindle and the shuttle move between a first position and a second position in unison, wherein the shuttle is in the first orientation and is disengaged from the plurality of jaws when the spindle is in the first position and the shuttle is in the first orientation and is engaged with the plurality of jaws when the spindle is in the second position, and wherein further movement of the spindle from the second position toward a third position in which the spindle engages the plurality of jaws to move the jaws to an expanded position produces rotation of the shuttle to the second orientation;a sleeve coupled to the shuttle and including a cam surface, the cam surface engagable with the shuttle as the spindle moves from the second position to the first position to rotate the shuttle to the first orientation; anda wedge coupled to the spindle, the wedge engageable with the plurality of jaws to move the jaws between the closed position and the expanded position. 23. A method of rotating a plurality of jaws, the plurality of jaws being movable between a closed position and an expanded position, the method comprising: positioning a spindle in a first position wherein the spindle is spaced apart from the plurality of jaws and the plurality of jaws are in the closed position;coupling a shuttle to the spindle, the shuttle movable between a first orientation and a second orientation;moving the spindle and the shuttle in unison along a longitudinal axis to a second position;coupling the shuttle and the plurality of jaws when the spindle is in the second position;moving the spindle to a third position in which the spindle is spaced apart from the plurality of jaws and the plurality of jaws are in the closed position;rotating the spindle and the plurality of jaws to the second orientation in response to movement of the spindle from the second position to the third position;moving the spindle to a fourth position while maintaining the spindle and the plurality of jaws in the second orientation;moving the jaws to the expanded position in response to movement of the spindle to the fourth position;returning the spindle to the first position from the fourth position;disengaging the shuttle and the plurality of jaws as the spindle moves from the second position toward the first position;engaging the shuttle and a cam surface after the shuttle disengages from the plurality of jaws; androtating the shuttle from the second orientation to the first orientation in response to the cooperation of movement of the spindle to the first position and the engagement of the shuttle and the cam surface.