Tree felling disc saw and replaceable teeth for same

Details Tree felling disc saw and replaceable teeth for same Tree felling disc saw and replaceable teeth for same

B - Operations, Transporting

27

B

B27B 33/08 (2006.01) A01G 23/091 (2006.01) B23C 5/06 (2006.01) B23C 5/22 (2006.01) B23D 61/06 (2006.01)

Patent

CA 2338829

The disc saw blade has a plurality of teeth detachably mounted in sockets provided in a rim portion around the circumference thereof. Each tooth has an anchoring portion, and a cutting edge which projects slightly from the circumference of the saw blade. The sockets each have an anchor-receiving portion to receive the anchoring portion of a tooth. The teeth and the sockets are configured such that each tooth is installed by inserting its anchoring portion into a corresponding anchor-receiving portion of a socket, in an axial direction, and then securing the tooth to prevent axial removal, for example by making the anchoring portion cylindrical and rotating the tooth rearwardly about a center of the cylindrical anchoring portion to position a keyway on a key portion extending into the socket, or by using a bolt threaded into or through the tooth. Radial removal is prevented by the anchoring portion being shaped such that it cannot be extracted from the anchor-receiving portion, except axially. For example, in the cylindrical anchor version, the anchoring portion is more than 180 degrees engaged within the cylindrical anchor-receiving portion of the socket. A bolt, pin or the like may be used to secure the tooth in its installed position. A small throw gap is achieved, and a large gullet is provided by each socket for wood chip clearance.

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