A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a cylindrical groove capable of facilitating the bending of a cylindrical water channel in which convex portions and concave portions are alternately formed like a flexible cylindrical portion.SOLUTION: A cylindrical groove 100 includes a bellows portion 110 including a bottom portion 101, a left side wall 102, a right side wall 103, and an upper surface portion 104. The bellows portion 110 is formed by alternately repeating mountain-folded convex portions 111 that protrudes in a chevron shape toward the outside of the cylindrical groove 100 and valley-folded concave portions 112 that protrudes in a chevron shape toward the inside of the cylindrical groove 100. In this case, the bellows portion 110 is formed so that the wall thickness t111 of the convex portion 111 is thinner than the wall thickness t112 of the concave portion 112. Further, each of the convex portion 111 and the concave portion 112 is formed so that the tip portion thereof is formed of a curved surface and the curvature C112 of the tip portion of the concave portion 112 is smaller than the curvature C111 of the tip portion of the convex portion 111.SELECTED DRAWING: Figure 1
【課題】可撓筒部のように凸部と凹部とが交互に形成された筒状の筒状水路の湾曲を行い易くすることができる筒状溝を提供する。【解決手段】筒状溝１００は、底部１０１、左側壁１０２、右側壁１０３および上面部１０４からなる蛇腹部１１０を備えている。蛇腹部１１０は、筒状溝１００の外側に向かって山形に尖って突出した山折りされた凸部１１１と筒状溝１００の内側に向かって山形に尖って突出した谷折りされた凹部１１２とが交互に繰り返されて形成されている。この場合、蛇腹部１１０は、凸部１１１の肉厚ｔ１１１が凹部１１２の肉厚ｔ１１２よりも薄く形成されている。また、凸部１１１および凹部１１２は、各先端部がそれぞれ曲面で構成されるとともに凹部１１２の先端部の曲率Ｃ１１２が凸部１１１の先端部の曲率Ｃ１１１よりも小さく形成されている。【選択図】 図１
To provide a cylindrical groove capable of facilitating the bending of a cylindrical water channel in which convex portions and concave portions are alternately formed like a flexible cylindrical portion.SOLUTION: A cylindrical groove 100 includes a bellows portion 110 including a bottom portion 101, a left side wall 102, a right side wall 103, and an upper surface portion 104. The bellows portion 110 is formed by alternately repeating mountain-folded convex portions 111 that protrudes in a chevron shape toward the outside of the cylindrical groove 100 and valley-folded concave portions 112 that protrudes in a chevron shape toward the inside of the cylindrical groove 100. In this case, the bellows portion 110 is formed so that the wall thickness t111 of the convex portion 111 is thinner than the wall thickness t112 of the concave portion 112. Further, each of the convex portion 111 and the concave portion 112 is formed so that the tip portion thereof is formed of a curved surface and the curvature C112 of the tip portion of the concave portion 112 is smaller than the curvature C111 of the tip portion of the convex portion 111.SELECTED DRAWING: Figure 1
【課題】可撓筒部のように凸部と凹部とが交互に形成された筒状の筒状水路の湾曲を行い易くすることができる筒状溝を提供する。【解決手段】筒状溝１００は、底部１０１、左側壁１０２、右側壁１０３および上面部１０４からなる蛇腹部１１０を備えている。蛇腹部１１０は、筒状溝１００の外側に向かって山形に尖って突出した山折りされた凸部１１１と筒状溝１００の内側に向かって山形に尖って突出した谷折りされた凹部１１２とが交互に繰り返されて形成されている。この場合、蛇腹部１１０は、凸部１１１の肉厚ｔ１１１が凹部１１２の肉厚ｔ１１２よりも薄く形成されている。また、凸部１１１および凹部１１２は、各先端部がそれぞれ曲面で構成されるとともに凹部１１２の先端部の曲率Ｃ１１２が凸部１１１の先端部の曲率Ｃ１１１よりも小さく形成されている。【選択図】 図１
CYLINDRICAL GROOVE
筒状溝
YOKOYAMA MASASATO (author)
2022-07-08
Patent
Electronic Resource
Japanese
IPC:
E03F
SEWERS
,
Abwasserkanäle
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