| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fire extinguisher in which a valve case capable of reducing generation of voids and not affecting airtightness even though the voids are generated can be manufactured by an aluminum die-casting method. <P>SOLUTION: The extinguisher has a container 10 holding fire extinguishing agent, a discharge tube 11 arranged in the container 10, and the valve case 20 closing the opening part 12 of the container 10, the valve case 20 has an end surface 21 located in the container 10 and a hole 23 holding one end of the discharge tube 11 in the center part of the end face 21, the valve case 20 is molded by the aluminum diecast molding, the valve case 20 has a ring-shape groove 26 in the end surface 21 outside of the hole 23, the groove 26 is molded during the aluminum diecast molding. <P>COPYRIGHT: (C)2013,JPO&INPIT |
