Mandrel for working disks
AssigneeDental Forschung Schleicher GmbH
InventorWolfgang Schleicher
Life of this patent
Estimating the term…
Abstract
A mandrel or a clamping element for working disks, for example, separating disks, grinding disks and/or polishing disks, contains a shaft to fix the mandrel to a receiving element or to a clamping element of a working machine. The mandrel has a fixing element for detachable fixing and clamping the working disk between a clamping surface formed on one end of the mandrel and the fixing element. A working disk, which can be used on a mandrel or on a clamping element, contains a fixing opening, having a cross-section that deviates from that of a circle, on a receiving element of the mandrel reaching through the opening in a form-fitting manner.
Claims25
A mandrel functioning as a clamping element for a working disk, the mandrel comprising:
- a shaft for affixing the mandrel to a retainer or clamping device of an instrument, said shaft having an end with a clamping surface and an opening formed therein;
- a detachable fixing element for affixing and clamping the working disk in a detachable manner between said clamping surface and said detachable fixing element, said detachable fixing element being a pin with a pin shaft and a pin head extending from said pin shaft, said pin shaft disposed in said opening;
- and
- a mechanism for anchoring said pin or said pin shaft of said pin in a detachable manner, said mechanism disposed in said opening.
A working disk for use on a mandrel functioning as a clamping element, the working disk comprising:
- a disk body having at least one attachment opening formed therein in a center of said disk body, said attachment opening provided for being penetrated by the mandrel when the working disk is affixed to the mandrel, said attachment opening having a profile deviating from a circular form, and being shaped for a retainer of the mandrel which penetrates said opening with a form-locking fit.
A working disk-mandrel combination, comprising:
- a mandrel having clamping surfaces and a mandrel section;
- and
- a working disk selected from the group consisting of cut-off disks, grinding disks, and polishing disks, said working disk having an attachment opening formed therein and penetrated by said mandrel section of said mandrel, said mandrel resting with said clamping surfaces against both sides of said working disk, said attachment opening having a profile deviating from a circular form and being penetrated by said mandrel section of said mandrel with a form-locking fit.
Dependencies are inferred from the claim text.