| 摘要 |
PURPOSE:To make a protection cap detachable with one-touch operation, by installing a breaking notched part, leading to the longitudinal direction of a barrel part of a protection cap body and to a hermetically sealed part, in a barrel part surface, and also installing a tripping handle in a rear end part of this notched part. CONSTITUTION:A protection cap A is constituted of a barrel part 1 having an inner diameter being rather smaller than an out diameter of a vessel valve takeout joint and optional length and a tip hermetically sealed part 2, while a breaking notched part 3 is installed in a barrel part surface ranging from the barrel part 1 of this cap body to the hermetically sealed part 2, and a tripping handle 4 is installed in a rear end part of this notched part, whereby a close- looped projection 5 is bulged on the inner circumferential surface of a barrel part opening end, thus a sanitary protection cap is constituted. |
