| 摘要 |
The present invention relates to a device for tensioning a saw chain (S) for the automatic grinding of the saw chain (S), wherein the device for the automatic grinding of the saw chain (S) comprises chain rulers (L), means for advancing the saw chain (S) along the chain rulers (L), means for fixing the saw chain (S) relative to the chain rulers (L), and a means for grinding (O) which comprises a rotatable grinding disc, and the device also comprises a driving means (9), means (7) for supporting the driving means (9) and means (11, 12) to move the driving means (9) away from the chain rulers (L). Characteristic of the device of the present invention is that it comprises a means of command and control to switch the means (11, 12) of moving the driving means between an activated position and a deactivated position. The invention also relates to a method for tensioning a saw chain when automatically grinding the saw chain (S). |
