OVERHEAD CRANE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an overhead crane device capable of moving freely according to the shape of a working area even if the working area is small and the plane shape thereof is unstable so that a dead area is not produced at moving positions. SOLUTION: This traveling crane device comprises a pair of traveling rails 24a and 24b disposed on a ceiling non-parallel with each other at a specified interval and having the spans different from each other at both end positions thereof, a girder 26 bridged across the traveling rails 24a and 24b and allowed to move along the traveling rails 24a and 24b, and a traveling hoist 28 installed movably along the girder 26. The girder 26 is formed telescopable according to the movement thereof for the spans of the pair of traveling rails 24a and 24b.