Blister closing unit, has male unit with lip penetrating into hollow part of female unit which has retaining unit with leaf having slot that produces undercut opposing extraction of male unit after its introduction into female unit

摘要

The unit has a male unit (1) with a lip (5) that penetrates into a hollow part (3) of a female unit (2) which has a retaining unit. The retaining unit has a leaf (A) in which the hollow part is made. A leaf (B) has a slot (21) permitting to access the part (3). An edge (7) is placed partially above the part (3). The slot produces an undercut opposing extraction of the male unit after its introduction into the unit (2).