PURPOSE:To make it possible for even a woman or a child to simply cut a seat-belt and instantly break the window glass of a car even in water in an emergency by providing a punch for breaking the window glass, having a striking mechanism for striking a shuttle. CONSTITUTION:When a car falls into water and a person in the car escapes from the car, a seat belt is cut, for example, by the use of a scissors A, the tip of a shuttle 15 of a punch B is applied vertically to the window glass, and the shuttle 15 is struck by a striking mechanism to give a strong impact to the window glass to break it. When a person outside the car rescues a person in the car, the window glass is first broken by the punch 15, and after that, a seat belt is cut by the scissors A. When the window glass is broken, with the scissors A held in the same manner as the holding position for cutting the seat belt, and without shifting the scissors to the other hand, the tip of the shuttle 15 of the punch B is applied vertically to the window glass to break the window glass.
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