| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a flexible tube having moderate strength and stiffness so as not to be deformed and collapsed by the tightening force of a bracket when the terminal of the flexible tube for a sprinkler head mounted with a sprinkler head is fixed by the bracket to a ceiling backing material. <P>SOLUTION: A mouthpiece 10 of the head adapter 5 which is mounted with the sprinkler head 7 on its front end side and has the mouthpiece 10 on its base end side is inserted and coupled to the terminal 1a of the flexible tube 1 connected to a takeoff or branch of a sprinkler fire extinguishing facility and the outer periphery of the terminal 1a of the flexible tube 1 corresponding to the outer periphery of the mouthpiece 10 is covered with a metallic covering cylinder 12 and this covering cylinder 12 is caulked. <P>COPYRIGHT: (C)2003,JPO</p> |
