RESERVOIR AND FLUID PRODUCT DISPENSER WITH SAFE UNSCREWING

摘要

The invention concerns a fluid product reservoir (1) comprising a neck (11) defining a substantially cylindrical tube (12) and an opening (110), said neck being provided on the outside with an external threading (13) designed to co-operate with a ring (21) provided on the inside with an internal threading (210) having a different thread pitch from the neck external threading (13), the external threading being provided with locking means (16) to prevent the ring from being unscrewed, said locking means comprising at least a projection (16) located beneath the external threading (13) on the passage of the internal threading. The invention is characterised in that said projection (16) comprises a ramp (161) whereon the internal threading (210) is engaged when screwed and a locking ridge (162) at the end of the ramp (161) defining in extension a locking wall (163) against which the internal threading (210) abuts in case of unscrewing.