Rotary conveyor belt cleaner

A biasing mechanism for biasing a scraping blade into engagement with a conveyor belt, said biasing mechanism including:

• an inner coupler member having a base, said base including a longitudinal axis, and a plurality of inner fins extending outwardly from said base;
• an outer coupler member including a peripheral wall extending around said inner coupler member, and a plurality of outer fins extending inwardly from said peripheral wall, each said outer fin adapted to be positioned between a pair of adjacent inner fins such that a cell is respectively formed between each adjacent inner fin and outer fin, said outer coupler member being rotatable about said longitudinal axis with respect to said inner coupler member between a first position and a second position;
• and
• a biasing member formed from a resilient elastomeric material, said biasing member including one or more first lobes and one or more second lobes, said first and second lobes being located alternately with respect to one another, each said lobe adapted to be located in a respective cell;
• whereby said inner fins and said outer fins place said first lobes of said biasing member in compression and place said second lobes of said biasing member in tension as said outer coupler member rotates with respect to said inner coupler member from said first position toward said second position, said first and second lobes adapted to bias said outer coupler member from said second position toward said first position.