<p>An operation rod (70) has a first rod (71) and a second rod (72). One end (71a) of the first rod (71) is rotatably connected to a lock closure (60), and the second rod (72) is supported so as to be movable relative to a hand lever (8). The other end (71b) of the first rod (71) and one end (72a) of the second rod (72) are interconnected by a connection section (73). The connection section (73) has a long hole (80) formed in the other end (71b) of the first rod (71) and also has a pin (81) formed in the one end (72a) of the second rod (72) and slidably engaging with the long hole (80). When the hand lever (8) is rotated, the connection section (73) allows rotation and slide of the other end (71b) of the first rod (71) relative to the one end (72a) of the second rod (72).</p>
