Ring e.g. for umbrella or sun screen, has interior profile of pipe and adapted so that twisting is prevented as well as bending of pipe upwards with lower range of screen locked and extension strengthened and stabilized

摘要

The ring has an interior profile of a pipe and adapted so that twisting is prevented as well as bending the pole upwards. The lower range of a screen is locked and the extension is strengthened and stabilized. The outside edges of the ring are tapered, so that an injury risk with a right-angled outside edge is avoided.