Machine tool, particularly pneumatically driven machine tool such as pneumatic drill- or striking hammer, for hand tool machine, has compressed air separately excited striking mechanism device and scrapper that is supported in guide pipe

摘要

The machine tool has a compressed air separately excited striking mechanism device (12a) and a scrapper (16a) that is movably supported in a guide pipe (14a), where the scrapper is accelerated by a pressure application in a lay direction (18a). A cavity (20a) is arranged in the scrapper. The cavity is formed in a closed manner. A spring element is provided to exert a return force in a return direction on the scrapper. The scrapper has a receiving area which is provided for receiving the spring element.