Chain saw guide bar
AssigneeSandvik Aktiebolaget
InventorGlenn Goran Egon Pantzar
Life of this patent
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Abstract
In a chain saw guide bar which at its free end has a saw chain-supporting sprocket wheel journalled on a hub and surrounded by side plates of the guide bar, the side plates are embossed (shaped) in three concentric zones having progressive embossing depths providing, between the side plate and the sprocket wheel, a gap which progressively increases in width -- either step-by-step or continuously -- with the radial distance from the center of the sprocket wheel.
Claims10
Chain saw guide bar with a sprocket wheel at its free end and which wheel supports the saw chain and is rotatably journalled on a hub and is surrounded by side plates, the part of the side plates that surrounds the sprocket wheel being formed by embossing of concentric zones (I, II, III), the embossing depth of which provides a gap between the side plate (4, 5) and the sprocket wheel (1), which gap increases with the radial distance from the center (6) of the sprocket wheel.
Dependencies are inferred from the claim text.