RUNOFF PREVENTATIVE DEVICE

• Main Author: SUZUKI YUKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2021
• Subjects: FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING

To provide a runoff preventative device that can immediately prevent placed objects on a quay wall of a port from running off upon occurrence of a tidal wave.SOLUTION: A runoff preventative device 1 is provided with: an insertion pipe 54 inserted vertically movably into the inside space of a fixing pipe 52; a guard fence 2; a holding device 3; and a grip part 57 arranged on an upper end part of the insertion pipe 54, wherein a receiving pipe 12 of the guard fence 2 has a receiving pipe hole 12a passing through a pipe wall at its upper end part, the insertion pipe 54 has a first insertion pipe hole 55a arranged in its upper end part, and the holding device 3 has: an inserted member 44 holding the insertion pipe 54 at an insertion height position by being inserted into the receiving pipe hole 12a and the first insertion pipe hole 55a when the insertion pipe 54 is placed at the insertion height position; and a support part 42 attached on the receiving pipe 12 and supporting the inserted member 44 in a way the inserted member 44 is allowed to move between an insertion position where the inserted member 44 is inserted into the receiving pipe hole 12a and the first insertion pipe hole 55a and a withdrawal position where it withdraws from the receiving pipe hole 12a and the first insertion pipe hole 55a.SELECTED DRAWING: Figure 7 【課題】高潮の発生時に港湾の岸壁上の載置物の流出防止を迅速に実施可能な流出防止装置を提供する。【解決手段】流出防止装置１は、固定管５２の内側の空間に上下に移動可能に挿入された挿入管５４と、防護柵２と、保持装置３と、挿入管５４の上端部に設けられた取手部５７と、を備え、防護柵２の受入管１２は、その上端部の管壁を貫通する受入管孔１２ａを有し、挿入管５４は、その上端部に設けられた第１挿入管孔５５ａを有し、保持装置３は、挿入管５４が挿入高さ位置に配置されたときに受入管孔１２ａ及び第１挿入管孔５５ａに挿通されることにより挿入管５４を挿入高さ位置で保持する挿通部材４４と、受入管１２に取り付けられて挿通部材４４が受入管孔１２ａ及び第１挿入管孔５５ａに挿通される挿通位置と受入管孔１２ａ及び第１挿入管孔５５ａから離脱する離脱位置との間で移動可能となるように挿通部材４４を支持する支持部４２と、を有する。【選択図】図７