| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a coupling structure of pipe members suitable for proper operation of coupling and disassembly. <P>SOLUTION: The coupling structure A1 of the pipe members includes: a receiving end 11 having an engagement hole 111; a coupling 2 having an elastically displaceable locking protrusion 221 and fitted over the receiving end 11; and an insertion end 12 having an engagement hole 121. When the engagement hole 121 of the insertion end 12 fitted into the receiving end 11 aligns with the engagement hole 111, the locking protrusion 221 comes to the locked position where it engages with the engagement hole 111 and 121. The coupling 2 includes a sleeve 21 coming into tight contact with an outer periphery of the receiving end 11, a spring 22 extending from the sleeve 21, and a ring shaped portion 23 extending from the spring 22 and surrounding the receiving end 11. The locking protrusion 221 is provided on the spring 22 in such a structure that the locking protrusion 221 comes to the locked position while the spring 22 is in a natural posture. When the ring shaped portion 23 is pushed in, the locking protrusion 221 comes to the position where it is disengaged from the engagement hole 121. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
