| 摘要 |
PROBLEM TO BE SOLVED: To design a multi-way cock such as a three-way cock suitable for use in a medical device handling a pouring liquid medicine like an instillation medicine capable of setting opening and closing positions of a cock plug accurately and preventing its easy change from a set position. SOLUTION: This multi-way cock is provided with a housing 1 like a hollow circular column having a connection hole on a peripheral wall part, a plug 3 mounted rotatably in the housing 1 and having a flow passage communicating with the connection hole of the housing 1, and a stud 9 provided on a base 5 of the housing 1 and having a groove 10 for lock. The groove 10 for lock with the stud 9 and a projection 11 for lock on a plug 3 side cooperate and engage mutually on inner periphery of the plug 3. |
