Patent ID: 9296049
Filing Date: 2016-03-29
CPC Classification: B23B,Y10T

Claim Text:
1. A coupling point for a modular rotary tool which extends in an axial direction, the modular rotary tool having a carrier and a tool head inserted in the carrier, the coupling point comprising: a first coupling part disposed on the tool head; and a second coupling part disposed on the carrier, wherein the coupling parts can be coupled to one another by bidirectional rotation with the formation of an interference fit which acts in the radial direction, each coupling part having two coupling faces which lie opposite one another and have contact regions, in which the interference fit is formed, wherein in the first coupling part, at least one of the coupling faces has at least two contact regions which are spaced apart from one another in the circumferential direction, and, to this end, at least one first clearance portion is formed between the contact regions, in which clearance portion the two coupling parts do not bear against one another in the coupled state, and wherein the contact regions are divided in the axial direction by at least one second clearance portion, with the result that a respective contact region is formed by at least two part contact regions which are spaced apart axially from one another.