| 摘要 |
A hose 1 has a hose body 11 of which the cross-sectional external shape as seen in a plane perpendicular to the axial direction is substantially rectangular, and has a linear projection 12 formed on the inner wall of the hose body 11 along the axial direction. To further reduce deformation of the hose 1 and thereby minimize reduction in the cross-sectional area of the fluid passage inside the hose 1 when an external force is applied thereto, the height of the linear projection 12 is preferably made equal to 50% or more of the distance from the part of the inner wall on which the linear projection 12 is formed to the part of the inner wall opposite thereto. To permit the flat wall of the hose body 11 to be supported firmly without being damaged when an external force is applied to the hose 1 , the top of the linear projection 12 is preferably formed into a flat surface.
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