| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fall-out stopper device for an air supply and exhaust pipe of simple structure with reduced number of parts items and capable of achieving or releasing a function of the fall-out stopper without generating axial directional relative movement of the air supply and exhaust pipe, and furthermore, capable of releasing the function of the fall-out stopper and allowing the connected air supply and exhaust pipes to be easily disassembled by relatively moving the connected air supply and exhaust pipes in the axial direction. <P>SOLUTION: This fall-out stopper device for the air supply and exhaust pipes to be connected by inserting a male part provided in an end of one pipe 4 into a female part 3 provided in an end of the other pipe 2 is provided with a circumferential groove 6 provided in the periphery of the male part, an opening part 7 provided in the female part, a lock member 9 provided in the periphery of the female part and while provided with an engagement part 8 to be elastically engaged with the circumferential groove through the opening part, and an engagement releasing arm 10 for elastically displacing the engagement part to remove it from the circumferential groove. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
