| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an auxiliary platform structure of a construction machine that can improve the safety when getting on and off onto and from a cab in an upward condition. <P>SOLUTION: The construction machine includes a cab 1 prepared tiltably upward in a standing up direction of a boom on a vehicle body and an auxiliary platform 10 established on the inferior border part of an entrance 2 of a lateral face of the cab. The auxiliary platform includes a first frame 11 fixed to the lateral face of the cab while a height position the back end side or the central axis extension line thereof in a lateral side sight seen from the vehicle body side is passing through a tilting center P of the cab to prolong in a longitudinal direction horizontally, a second frame 12 facing to the frame to prolong in a longitudinal direction and the back end thereof is connected with the vehicle body side rotatably, and a plurality of footholds 13 arranged in a longitudinal direction along both the frames at a predetermined distance and each backward end is connected to the first frame and each forward end is connected with the second frame rotatably, respectively. Each foothold constitutes a parallel linkage mechanism together with both frames at a lateral side sight and maintains a level state despite of tilting the cab. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
