Abstract: A scraper constituting a blade which is yieldingly deformable in such a manner as to be curved from a linear state to an arch shape is held by a holding groove of a holder. The holding groove of the holder is formed by a substantially parallel rail like holding groove which is gradually apart from an axis extending to a transverse direction of the belt as the holding wall goes from both ends of the belt to a central portion thereof. The scraper comprises a leg portion inserted into the holding groove of the holder, an extended standing portion projecting from the holding groove so as to be in contact with the surface of the belt and a head portion formed by thickening a thickness of said extended standing portion more than a thickness of the leg portion toward a returning direction of the belt, in which a jaw portion projecting beyond a side surface of the leg portion is formed by a lower portion of said head portion.

Abstract: A cleaner for a conveyor belt includes a scraper arranged transversely of the belt on the return side of the same. The scraper is adjustably mounted for displacement about an axis extending in the transverse direction of the belt. The scraper has a scraping portion thereof which intends to come in close contact with the surface of the belt and is deflected from the common axis at a point midway between both side ends of the belt so as to form an arch shape.