CHAIN SAW WITH WEDGE-SHAPED, CHAIN-PROTECTING CHAIN SUPPORT

摘要

A chain saw mountable on a powered vehicle having a chain support including a chain bar with a loop-defining chain run including an exposed cutting run portion and an opposed non-cutting run portion. The chain support has a generally planar lower surface extending between the cutting and non-cutting run portions which defines a lower treecutting surface along which the lower support surface travels during cutting. The non-cutting run portion of the chain loop is disposed coincident with or above this lower surface. The upper surface of the support covers the non-cutting run portion and has a general wedge-shape tapering toward the cutting run portion.