| 摘要 |
<p>PURPOSE:To simplify mounting through provision of a free degree of freedom in the twist direction of a pipe, to improve airtightness and durability to produce a product suitable for application, to perform connection to right and left mating pipings or parts, having size different from that of a flexible pipe, and to integrally form a straight pipe cylinder wall for connection at an outermost end part. CONSTITUTION:A curl part 2 in an inside or an outside direction is formed at least at one end peripheral edge part of a short cylinder body 1 approximately in a V-shape or in an inverted V-shape in vertical cross section. A plurality of the cylinder bodies each having the curl part are axially aligned in a state that the curl part of the cylinder body and the curl part of the adjacent different cylinder body are positioned facing in opposite directions. With this state, a pair of the curl parts positioned facing each other are collectively locked in a resilient pressure state for interconnection through bracing part 4 consisting of the peripheral wall part of a holding ring 3 having a segmental part along an inner peripheral side or an outer peripheral side and formed approximately in a C-shape in vertical cross section.</p> |
