Crankshaft impact protector

Details Crankshaft impact protector Crankshaft impact protector

A - Human Necessities

01

D

56/48

A01D 34/64 (2006.01) A01D 34/81 (2006.01)

Patent

CA 1272608

ABSTRACT A crankshaft impact protector (30) for protecting the crankshaft (22) of a lawnmower engine (20) from bending beyond its elastic limit whenever a hard or immovable object like a rock or a stump is struck by the lawnmower blade (24). The protector has a flange (44) for mounting on a mower deck (10), a mounting base (34) for mounting the lawnmower engine thereupon and a bumper (72) for providing physical support to the crankshaft (22). Impact forces experienced by the crankshaft (22) are dissipated by the bumper (72) of the protector and shifting of the bumper (72) with respect to the crankshaft (22) is prevented because the engine (20) is integral with the crankshaft impact protector (30). Only a small clearance is provided between the bumper (72) and the crankshaft (22) thereby also helping to prevent soil and dust from reaching the main bearing of the engine (20).

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