Safety device for e.g. sliding doors comprises aluminum edging strip containing flexible light-reflecting tube which is compressed by rib if strip encounters obstacle, cutting off light beam and shutting off door drive

摘要

Safety device for sliding or roller doors or roller gratings, etc. comprises a multi-chambered aluminum edging strip (12). This contains a flexible light-reflecting tube (26) which is compressed by a rib (30) if the strip encounters an obstacle. This cuts off a light beam and shuts off the door drive.