As the sludge you scratch and justify and the device, and the belt and

摘要

PROBLEM TO BE SOLVED: To engage a chain with a sprocket wheel by a simple structure.;SOLUTION: A mud scraping device includes: a pair of chains 10 obtained by endlessly connecting a plurality of links 1 by pivotal attachment using connecting shafts 5; a sprocket wheel 11 that is engaged with the chain 10 configured by bridging pins 13 between a pair of side plates 12; and a scraping plate bridged over the pair of chains 10. Both ends of the connecting shafts 5 are protruded from the links 1. In the side plates 12 of the sprocket wheel 11, receiving grooves 14 hook the connecting shafts 5 by being engaged with both ends of the connecting shafts 5.;COPYRIGHT: (C)2013,JPO&INPIT