Metal tools and implements – making – Saw-making or furbishing device or machine – Chain saw sharpener
Patent
1998-06-25
1999-12-28
Payer, Hwei-Siu
Metal tools and implements, making
Saw-making or furbishing device or machine
Chain saw sharpener
76 37, 83833, 83834, B23D 6316, B27B 1702
Patent
active
060066296
ABSTRACT:
A saw chain is automatically sharpened during use by causing top sides of the cutter links to be pressed against a stationary abrasive block when the saw chain is running around a rim type sprocket. The cutting link includes a cutting edge, and a depth gauge recessed radially from the cutting edge by a distance defining the cutting depth. The generally cylindrical outer periphery of the drive sprocket has raised steps or ramps formed thereon which lift the front end of the cutter links relative to the rear ends, thereby allowing a sufficiently large cutting depth to be achieved without locating the depth gauge far in front of the front rivet. This reduces vibration and instability of the saw chain when sawing.
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Payer Hwei-Siu
Sandvik Aktiebolag
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