| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a crane device, a track crane, and an operation region control method of the crane device, that can arouse operator's attention when a tip part of a boom exceeds a work limit in the direction parallel to a track, and can prevent the contact and collision between the boom and an avoidance object.SOLUTION: A crane device includes: a boom; a work limit range setting unit 54 for setting a work limit position defining a work limit in a direction parallel to a track laid on the ground; a turning angle detector 333 for detecting a turning angle of the boom; a boom length detector 353 for detecting a length of the boom; a boom state determination unit 53 for determining whether or not the tip part of the boom exceeds the work limit position set by the work limit range setting unit 54, based on the detection result of the turning angle detector 333 and the boom length detector 353; and an alarm generating unit 40 and an alarm generation control unit 57 for notifying a boom state according to the determination result by the boom state determination unit 53.</p> |
