PIPE DEVICE AND CORRUGATED DOUBLE PIPE

• Main Author: FURUTA KENSEI
• Format: Patent
• Language: English; Japanese
• Published: 21.11.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a pipe device capable of suppressing movement in an axial direction while having functionality, and a corrugated double pipe.SOLUTION: A corrugated double pipe 50 has a double layer structure throughout an axial direction, the double layer structure comprising: a cylindrical inner layer 51 made of a non-foamed synthetic resin material; and a cylindrical outer layer 52 brought into close contact with the outer peripheral surface of the inner layer 51, and made of a foamed synthetic resin material. The corrugated double pipe 50 has annular recesses 53 and annular protrusions 54 alternately provided along an axial direction. The corrugated double pipe 50 deforms in such a way that when an external force directed inward in a radial direction is applied, the corrugated double pipe 50 itself collapses in the radial direction before the outer layer 52 is compressively deformed.SELECTED DRAWING: Figure 5 【課題】機能性能を有しつつ軸方向への移動を抑制できる管装置及び波付二重管を提供すること。【解決手段】波付二重管５０は、非発泡の合成樹脂材料からなる筒状の内層５１と、内層５１の外周面に密着し、発泡させた合成樹脂材料からなる筒状の外層５２との二層構造を軸方向全体に有する。波付二重管５０は、軸方向に沿って交互に設けられた環状の凹部５３と環状の凸部５４とを有する。波付二重管５０は、径方向内側に向けた外力を加えた際に、外層５２が圧縮変形する前に波付二重管５０自身が前記径方向へ潰れるように変形することを特徴とする。【選択図】図５