Stopper for closing openings in e.g. brake cylinder, has hollow space with changeable volume which is minimal during closing of openings in component, where hollow space is enlargeable during removal of stopper from openings

摘要

The stopper (10) has a hollow space (15) with a changeable volume which is minimal during closing of two openings (11, 12) in a component (16), where the hollow space is enlargeable during removal of stopper from the openings. The stopper is designed in a bellow-type manner. The stopper has an opening i.e. hole or slot, and a separation wall extending in a radial direction, where the hole is opened or closed by a flap. A grip (17) is provided in the stopper. A bar is provided for connecting the stopper to another stopper.