Patent ID: 8204655
Filing Date: 2012-06-19
Classification: E02F

Abstract:
1. A construction machine, comprising: a work arm rotatably mounted at a construction machine main body; a work tool mounted at the work arm; an attitude adjusting device that adjusts an attitude of the work arm or the work tool relative to the construction machine main body; an adjustment enabling device that allows the attitude of the work arm or the work tool to be adjusted by the attitude adjusting device so as to assume an attitude at least partly determined by an external force applied by a work target object to the work tool at the work arm or the work tool; an operating state determining device that determines an operating state of the construction machine main body; and a switching device that selects, based upon the operating state determined by the operating state determining device, whether or not the adjustment enabling device is to allow the attitude adjusting device to adjust the attitude of the work arm or the work tool; wherein the work arm rotates so as to lessen a bending moment resulting from the external force; wherein the work tool is a gripping device that grips a target object.