| 摘要 |
PROBLEM TO BE SOLVED: To provide a cock in which a loss of a cover body is eliminated and it can be fixed to prevent the inner cylinder from being turned under a closed state only through a simple operation or assembling operation also after starting the use thereof.SOLUTION: This invention comprises: an outer cylinder body 2 having both ends opened; an inner cylinder 5 having an opened extremity end and rotatably fitted to an inside part of the outer cylinder body in a circumferential direction; a handle 6 provided at a base end side of the cylinder body and constituted to be changed-over to any one of an opened state in which an outer communicating hole and an inner communication hole are communicated to each other or a closed state in which the outer communicating hole and the inner communication hole are not communicated to each other; a cover body 3 fixed not to be turned substantially in a circumferential direction with respect to the outer cylinder so as to removably close the extremity end opening of the inner cylinder; and an engaging structure 7 formed between the extremity end of the inner cylinder and the cover body and formed to cause the inner cylinder and the cover body under the closed state to be engaged with each other in a circumferential direction.SELECTED DRAWING: Figure 1 |
