Dispenser for material extruded from bag

摘要

A driving section (10) with a sliding thrust member (15) is connected to an interchangeable tube (17) containing a bag (20), and which has an outlet for the material at the forward end. The outlet (37) is spring-loaded into the shut position, gripping an outlet passage (22), which can be torn open, on the bag. The tube outlet can be formed by one or more flaps hinging on it between the open and shut positions. These form an opening for the bag outlet passage, and have elastic sealing components gripping the bag passage (22) when shut. Spring tongues on the tube have locking devices fit over the flap edges in the shut position, and a sleeve on the tube slides over them to lock them.