End plug for a roll of material, roll of material and retention mechanism in a dispenser

摘要

An end plug (5) for a roll of material to be inserted into a retention mechanism (1), comprising a receiving portion (60) with dimensions to fit into a hollow core of the roll of material; and a bearing member (70) with dimensions to fit into the retention mechanism, the bearing member comprising a bearing pin (80) comprising a counter surface (82) facing the receiving portion; and a locking surface (90) for locking the end plug in an end position (250) in the retention mechanism, the locking surface being arranged between the receiving portion and the bearing pin, the locking surface having at least one portion inclined with respect to the longitudinal axis of the bearing pin by an angle to the longitudinal axis of the bearing pin in the range of 117° to 141°. Also disclosed is a retention mechanism (1) in a dispenser for retaining an end plug (5) of an exchangeable roll of material, the retention mechanism comprising: a housing (10) with an insertion slot (20) for inserting a bearing member (70) of the end plug, the insertion slot being arranged between an upper guide rail and a lower guide rail (200) , the guide rails having at least an inclined sliding surface or interaction with an inclined locking surface of the bearing member; a locking member formed in at least one of the guide rails, the locking member being formed such that it interacts with the inclined locking.