Milling device
AssigneeAB Scaniainventor
InventorsOlle L. Siwersson, Jan A. T. Loodberg, Arne E. Wall
Life of this patent
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Abstract
A milling device comprises two milling bodies one of which is hollow and encloses the other, and a driving unit connected to one of the milling bodies via a shaft nonrotatably connected with the one milling body to cause it to rotate about its own axis in rolling contact with the other milling body. Both milling bodies are universally movable in a surface essentially transverse to the axis of rotation, but are actuated by a return force which increases as the pendulum movement increases. To provide for the return force, the two milling bodies are supported in pendulum fashion, or use is made of resilient means, such as springs.
Claims12
A milling device comprising:
- a first milling body;
- a second milling body which is hollow and encloses said first milling body;
- and
- a driving unit for rotating a shaft which is nonrotatably connected with one of said first and second milling bodies, to cause said one of said first and second bodies to rotate about its own axis in rolling contact with the other of said first and second bodies;
- said milling device further comprising:
- means suspending said first and second bodies for universal movement in a plane essentially transverse to the axis of rotation, whereby said first and second bodies perform a pendulum movement during rotation of said shaft;
- and
- means for generating a return force opposing said pendulum movement and increasing as the pendulum movement increases.
Dependencies are inferred from the claim text.