Compressed air open-circuit self-contained breathing apparatus

摘要

PURPOSE: To enhance the safety and economic property of an attaching and detaching mechanism for the face body and air feed valve of an aerial respiration device. ;CONSTITUTION: An aerial respiration device 1 is formed of a face body 2, an air feed valve 4, and a joint member 5 attachably and detachably interposed between the both. The joint member 5 has a connecting means 26 to the face body 2 and a pair of elastic pin members 41 which are the connecting means to the air feed valve 4. The elastic pin members 14 nip the connecting pipe 18 of the air feed valve from its radially lateral sides, and release the nipping only when a pair of pressing member 35A, 35B situated in the radially vertical direction are simultaneously pressed.;COPYRIGHT: (C)1995,JPO