CHAIN SAW Russian patent published in 2014 - IPC B27B17/00 

FIELD: process engineering.

SUBSTANCE: invention relates to motorised tools, particularly, to chain saw driven by compact engine. Chain saw comprises engine with crankcase, cylinder and piston reciprocating in the latter. Chain saw housing accommodating said engine is composed of an integral part with lateral, top and bottom surfaces. Said engine is fitted in the housing on the side opposite the lateral surface. Besides, said chain saw comprises guide bus attached to the housing lateral surface to and covered by saw chain for chain saw to be driven by said engine. Said engine is arranged in housing so that its crankshaft extends through housing lateral surface. Engine has two surface, in fact, parallel about crankshaft axial direction and closed by housing top and bottom surfaces and secured thereto. Engine is attached to housing side by retainer on the side on guide bus attachment to said housing. Note here that said engine attachment is located between guide bus attachment and crankshaft.

EFFECT: decreased overall dimension and weight, better damping properties.

8 cl, 25 dwg