| 摘要 |
<p>An apparatus for straightening portions of a plurality of purlins (18) of a roof structure (10) which have been moved from an original position to a deformed position (80) and a method of using the same is disclosed. A carriage (34) is provided which is mounted for movement along the length of the purlins (18) in a downstream direction (36). The carriage (34) has a plurality of guides (60) which are positioned adjacent the plurality of purlins (18) in the deformed position (80). A purlin straightening device (90) attached to the carriage (34) moves the carriage (34) in a direction lateral to the length of the purlins (18) so that the guides (60) move the portions of the plurality of purlins (18) from the deformed position (80) to the original position.</p> |
