Inner grab for glasses and bottles - has elastic hollow holder link pressed through opening of container and against inner faces

摘要

The grab is for hollow containers e.g. glasses and bottles and is inserted in the opening of the containers for pressing agains the inside. The holder link (21) consists of two or more finger shaped expanding hollow parts (23, 24) which form a part of a collar (22), air sealed to a locating part (11). The hollow parts (23, 24) are positioned partly or wholly outside their base surface and are contracted together by a vacuum or are pressed against the container opening by their own elastic tension or by a pressurised medium. Between the hollow parts of the holder link is formed a membrane (27) which moves axially of the finger shaped hollow parts that they move towards each under vacuum.