DEREK FENLON,PAUL CLANCY,ROBERT CHARLES USCHOLD,DECLAN WALSH,SIMON KAAR,JAN GEERT HAZENBERG,DAN KNOCKANE BUCK,JEFFREY A. KARG
申请号：
PT12003933
公开号：
PT2502644E
申请日:
2011.05.18
申请国别(地区):
PT
年份:
2015
代理人:
摘要：
A manually operated measured dose inhaler (12) includes a dose counter chamber (66) including a dose display tape (112) driven by a ratchet wheel (94) which is driven in turn by an actuator pawl (80), actuated by movement of a canister (20)； two-step ribs (144, 146) being provided to prevent rocking of the canister (20)； a drain hole (194) being provided for preventing misting of a display window (118)； and frictional surfaces (132, 134) being provided on a shaft (108) of a tape stock bobbin (110) to prevent tape slippage； a rotation regulator being provided for the stock bobbin and comprising a wavelike engagement surface (300) with concavities (302) which engage against control elements (128, 130) in the form of protrusions on resilient forks of a split pin (108) thereby permitting incremental unwinding of the stock bobbin yet resisting excessive rotation if the inhaler is dropped onto a hard surface.
