Holding structure of hose clamp

A holding structure of a hose clamp wherein the hose clamp has an annular clamp body to be fitted on a clamp mounting portion on an outer periphery of an end portion of a hose, and the clamp body is configured so as to tighten the clamp mounting portion by diametrically contracting the clamp body, the holding structure, comprising:

• an anti-rotation engaging portion formed on or in the clamp body,
• an engaging holder portion provided on the hose, the engaging holder portion engaging with the anti-rotation engaging portion in a circumferential direction when the clamp body is fitted on the clamp mounting portion, and
• a deformation restraining mechanism for restraining deformation of the hose when the clamp body tightens the clamp mounting portion, the deformation restraining mechanism being configured so as to restrain that the anti-rotation engaging portion is pressed against the engaging holder portion and thereby the hose is deformed via the engaging holder portion.