| 摘要 |
<p>PURPOSE: To provide a coupling for a spring lock easy to assemble even in a limited space region. CONSTITUTION: A second tube 28 having an end part is installed on an end part of a first tube 12 free to extend and contract. The end part of the second tube insludes an inclined part 38 arranged with an angle relative to an axis in the longitudinal direction and another part 40 arranged an angle inward toward the same axis in the neighbourhood of a terminal end of the tube. The end part of the second tube is partially projected to a space 32 between a surface of the end part of the first tube and a cage 16. A spring 34 interposed between another part of the second tube and a second circular flange part 24 is arranged inside the cage and prevents the second tube from being removed in the extending and contracting direction from the first tube. A seal to prevent leakage between the respective end parts is arranged between the end parts of the first tube and the second tube.</p> |
