Abstract: A link 11 reaches a locking position in response to movement of a rod 9. A cab lock hook 12 is rotatably supported by the link 11, and arrives at a locking position in response to rotation of the link 11 toward the locking position, thereby engaging with a pin 4 on the chassis side 2. A switch 40 is fixed to a cab 1, and when it is pressed down, the state thereof changes accordingly. A lock close portion 60 is rotatably supported by the other end of the cab 1, and is movable between a closing position and a non-closing position. The lock close portion 60 in the closing position engages with a rod connecting shaft 27 while the link 11 is in the locking position, and prevents movement of the link 11 in a lock release direction. The lock close portion 60 includes a switch pressure section 66, which presses down the switch 40 when the lock close portion 10 reaches the closing position from the non-closing position.

Abstract: A link 11 reaches a locking position in response to movement of a rod 9. A cab lock hook 12 is rotatably supported by the link 11, and arrives at a locking position in response to rotation of the link 11 toward the locking position, thereby engaging with a pin 4 on the chassis side 2. A switch 40 is fixed to a cab 1, and when it is pressed down, the state thereof changes accordingly. A lock close portion 60 is rotatably supported by the other end of the cab 1, and is movable between a closing position and a non-closing position. The lock close portion 60 in the closing position engages with a rod connecting shaft 27 while the link 11 is in the locking position, and prevents movement of the link 11 in a lock release direction. The lock close portion 60 includes a switch pressure section 66, which presses down the switch 40 when the lock close portion 10 reaches the closing position from the non-closing position.