| 摘要 |
PURPOSE:To enable a worker to operate lock mechanism within a hand action range in the stand-up state. CONSTITUTION:Link mechanism to be interposed between a frame 21 and a cab lower member 23 with its front end part pivotally fixed to each front lateral part of the frame 21 through a tilting shaft 22 so as to hold the cab lower member 23 to a specified tilt angle is formed by fixing an upper-lower link 27 pivotally in the bendable state to the cab lower member 23 and the frame 21 through an upper bracket 28 and a lower bracket 29. An upper link 30 is provided with lock mechanism formed of a locking arm 36 extended from the pivotally fixed part so as to be rotatable along the upper bracket 28 and pierced with a lock hole 37 in a specified radial position from the pivotally fixed part, and a lock pin 43 engaged in the state of protruding/receding to/from the upper bracket 28 side on the turning locus of the lock hole 37. |
