Abstract: An operation rod includes a first rod and a second rod. A one-end portion of the first rod is connected to a lock closer to be rotationally movable. The second rod is supported so as to be slidingly movable relative to a hand lever. A connecting portion connects an opposite-end portion of the first rod and a one-end portion of the second rod to each other. The connecting portion includes: a long hole which is formed in the opposite-end portion of the first rod; and a pin which is formed on the one-end portion of the second rod and which engages with the long hole to be slidingly movable therein. While the hand lever is moving rotationally, the connecting portion allows the opposite-end portion of the first rod to move rotationally and slidingly relative to the one-end portion of the second rod.

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: An operation rod 70 includes a first rod 71 and a second rod 72. A one-end portion 71a of the first rod 71 is connected to a lock closer 60 so as to be rotationally movable. The second rod 72 is supported so as to be slidingly movable relative to a hand lever 8. A connecting portion 73 connects an opposite-end portion 71b of the first rod 71 and a one-end portion 72a of the second rod 72 to each other. The connecting portion 73 includes: a long hole 80 which is formed in the opposite-end portion 71b of the first rod 71; and a pin 81 which is formed on the one-end portion 72a of the second rod 72 and which engages with the long hole 80 so as to be slidingly movable therein. While the hand lever 8 is moving rotationally, the connecting portion 73 allows the opposite-end portion 71b of the first rod 71 to move rotationally and slidingly relative to the one-end portion 72a of the second rod 72.

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.