Tool holder
AssigneeEugen Fahrion GmbH & co.
InventorsUlrich Fahrion, Markus Geiger, Salvatore Cavallaro
Life of this patent
Estimating the term…
Abstract
A tool holder includes a collet configured to be clamped to the shank of a tool and a pull-out protection element configured to secure the tool against being pulled out of the collet. The pull-out protection further includes a protection element such that pull-out forces acting on the tool are transmitted to the collet. The protection element is mounted so as to be moveable relative to the collet and has a wedge-shaped configuration as well as force-transmission surface. When the protection element is in a radially inner engaged position with the tool, the protection element is configured to be clamped to the cool and the collet so as to be self locking.
Claims20
A tool holder comprising:
- a collet configured to be clamped to the shank of a tool;
- and
- a pull-out protection configured to secure the tool against being pulled out of the collet, the pull-out protection including a wedge-shaped protection element having force-transmission surfaces configured such that pull-out forces acting on the tool are transmitted to the collet,
- wherein the protection element is mounted so as to be movable relative to the collet,
- wherein the protection element is, due to its wedge-shape, configured to be, when in a radially inner engaged position with the tool, clamped to the tool and to the collet so as to be self-locking,
- wherein clamping forces of the collet acting on the tool are not influenced by the protection element, and
- wherein the protection element only has a function as a blocking element when the pull-out forces acting on the tool exceed the clamping forces of the collet acting on the tool.
Dependencies are inferred from the claim text.