WAVE TUBE

• Main Author: KANO KAZUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2021
• Subjects: BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; 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 lightweight and easy-to-use wave tube while maintaining linearity during straight piping.SOLUTION: A wave tube 100 according to the present invention includes a bellows tubular portion 105 in which a bellows convex portion 101 projecting outward in the radial direction and a bellows concave portion 102 recessed inward in the radial direction are continuous along a pipe axis, and that has a substantially uniform thickness in the circumferential direction, and a plurality of ridges 110 that are raised from the inner peripheral portion 106 of the base 105 inward in the radial direction at heights h1 and h2 so as to partially form a relatively thick portion in the circumferential direction, and extend in the elongated direction at intervals in the circumferential direction. The protruding height h1 at the bellows convex portion 101 is larger than the protruding height h2 at the bellows concave portion 102.SELECTED DRAWING: Figure 1 【課題】本発明は、直線配管時の直線性を維持しつつ、軽量で取り扱いに優れた波付管を提供する。【解決手段】本発明の波付管１００は、径方向外方に凸設された蛇腹凸部１０１および径方向内方に凹設された蛇腹凹部１０２が管軸に沿って連続し、周方向に略均一な厚みを有する蛇腹管状の基部１０５と、周方向に相対的に厚肉な部位を部分的に構成するように前記基部１０５の内周部１０６から径方向内方に突出高さｈ１，ｈ２で隆起し、周方向に互いに間隔をあけて長尺方向に延びる複数の突条部１１０と、を備える。蛇腹凸部１０１における突出高さｈ１が、蛇腹凹部１０２における突出高さｈ２よりも大きい。【選択図】図１