Extendable tube, especially for vacuum cleaners, has outer and movable inner tube with fixed sheath on the outer tube and locking and gliding parts between the tubes

摘要

An extendable tube, especially for vacuum cleaners, comprises an outer (2) and a movable inner (1) tube with a fixed sheath (6) on the outer tube and a guide slot, fixing groove and brake outside the inner tube. The brake is in a groove in a glide piece and has projections matching locking points in the groove that fit edge bayonets on the glide piece.