PURPOSE: To rotate and drive simultaneously a large number of clips arranged in a peripheral part of both door bodies and a large number of clips arranged in a joint between both door bodies in the opening or closing direction by handle operation in a double-leaf door.

CONSTITUTION: By pins 7a, a large number of clips 7 are rotatably installed on a door frame 01 in a peripheral part of two door bodies 20 and 20A to form a double-leaf door, and connecting metal fittings 17 and 18 fixed to the respective clips 7 are connected to each other by connecting levers 12 to 15, and a base end part of a handle 10 is connected to a connecting lever 14a through an arm plate 16. On the other hand, a large number of clips 7A are installed along a joint the door body 20, and the respective clips 7A are connected to each other by two connecting levers 13, and a piston 6a of a hydraulic cylinder 6 is interposed between both connecting levers 13, and a two way valve 5a of an oil passage directional control valve 5 is switched simultaneously when the clips 7 are rotated by operation of the handle 10, and pressure oil of a low pressure accumulator 1 is supplied to the hydraulic cylinder 6, and the clips 7A are simultaneously rotated in the same direction with the clips 7 by driving the connecting levers 13 by the piston 6a.