| 摘要 |
A blade holder for cutting machines having a blade head held on a raising and lowering device and having an adjustment mechanism for a circular blade that is held on the blade head, whereby the adjustment mechanism, for the movement of the circular blade between a cutting position and a ready position, is provided with an adjustment piston rod having an adjustment piston that is guided in a chamber of the blade head housing and is adapted to be moved by compressed air, and the adjustment piston rod is biased by a compression spring into the ready position of the circular blade, is characterized in that the piston surface (23, 24, 40) of the adjustment piston (22) that is effective in the direction of adjustment has a cross-sectional area that is different in different piston positions such that as the path of the adjustment piston (22) in the direction of adjustment increases, the piston surface (23, 24, 40) that is acted upon by compressed air increases.
|
