B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
B23D 63/16 (2006.01)
Patent
CA 2318838
A saw chain sharpener (2) for a chain saw (4) and a chain saw having a sharpener in which the bottom surfaces of the cutting teeth of a conventional bottom sharpened saw chain (9) are conveniently sharpened automatically by running the chain (9) under power through the sharpener. The saw chain can be sharpened using the sharpener in a matter of typically twenty to thirty seconds without removing the chain from the chain bar. The sharpener is preferably adapted to be removably mounted to a bracket which is itself preferably removably disposed on the chain saw. The sharpener comprises a sharpening tooth (3) disposed in a housing which is mounted on the chain bar. A top surface of the sharpening tooth frictionally engages bottom surfaces of the cutting teeth of the chain as the chain is run under power. A device for dispensing a sharpening compound to the sharpening tooth during sharpening may be disposed on the sharpener housing.
L'invention porte sur un aiguiseur (2) de chaînes de scies (4) à chaîne et sur une scie à chaîne, munie d'un tel aiguiseur, dont la surface des dents du bas de la chaîne (9) usuellement aiguisée par le bas l'est automatiquement alors que la chaîne (9), entraînée par son moteur, passe sur l'aiguiseur. L'aiguisage se fait normalement entre 20 et 30 s, sans avoir à ôter la chaîne de son tendeur. L'aiguiseur se monte de préférence réversiblement sur une bride, elle-même montée réversiblement sur la scie. L'aiguiseur comporte une dent (3), placée dans un boîtier fixé au tendeur, et dont la surface supérieure frotte contre la surface inférieure des dents de la chaîne en rotation. On peut prévoir un dispositif distributeur de produit d'affûtage monté sur le boîtier de l'aiguiseur.
Chain Masters Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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