| 摘要 |
A hose clamp is provided to reduce the material cost while providing strong clamping force, thereby ensuring firm mounting of the nozzle and improving manufacturing efficiency. A hose clamp comprises joint projections(2) and joint grooves(3) which are formed on both ends of a fastening band(1) which is annularly formed on a hose, and a press fastening protrusion(4) which is protruded from one side of the fastening band. The fastening band is made up of a stainless steel sheet 0.3~0.5mm thick. A press fastening unit(5) including the part in which the press fastening protrusion and the joint groove are formed is made up of the double-layered stainless steel sheet. The stainless steel sheet making a band part(6) except the press fastening protrusion is a single layer.
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