| 摘要 |
PROBLEM TO BE SOLVED: To provide a change cock which is provided with a change means with a simple structure and requires a small number of components. SOLUTION: A change cock 1 includes an outer package 17 which is formed with at least one injection path and a water supply path, a supporter 13 which is formed with first and second openings, a change means 2 which is rotatably supported by these, and an operation means 27 which is connected with the rotation shaft of the change means 2, wherein the change means 2 has a first bottomed cylindrical body and a second bottomed cylindrical body having a smaller diameter and a longer length than those of the first cylindrical body at the center of the first cylindrical body, both bodies being formed integrally with each other, the first and second cylindrical bodies are formed with two inflow ports and two outflow ports, and have first and second flow paths each of which communicates each inflow port with each outflow port, and the first and second flow paths are not communicated with each other, and the injection path and the water supply path of the outer package 17 are communicated with the inflow and outflow ports of the change means 2 respectively by the operation means 27. COPYRIGHT: (C)2011,JPO&INPIT |
