| 摘要 |
<p>A joint structure (20) equipped with: a male body (21) that is provided to an end of a first pipe and has an engagement groove (25), which extends in the circumferential direction circling a pipe axis (O1), formed on an outer circumferential surface; a female body (22) that is provided to an end of a second pipe, is fitted to the male body (21) from the outside in the radial direction orthogonal to the pipe axis (O1), and has an annular engagement space (27), which has an inner circumferential edge that connects to the engagement groove (25), formed therein; and a restricting ring (24) that is mounted to the engagement groove (25) from the outside in the radial direction, positioned inside the engagement space (27), and restricts the relative movement of the pipes along the direction of the pipe axis (O1). The engagement space (27) is open towards the outside in the radial direction through an opening (27a). In a side cross-section view that is orthogonal to the pipe axis (O1), the opening width (W1) of the opening (27a) is equal to or greater than the outer diameter of the restricting ring (24).</p> |
