Trilobular
Trilobular (formed from tri , Greek for three and lobus , Latin for lobes, so three-lobed) describes a geometric figure that can also be called "triangle-round". It is characterized by the fact that, despite the triangular basic shape, the roll diameter is constant, as a large and a small curve are always directly opposite. So it is a matter of equivalency . The degree of trilobularity is given as the ratio between the inscribed circle and the circumference .
application
The trilobular shape is often used for thread-rolling screws . These are self-locking and thus secure the thread without any further aids.
Individual evidence
- ↑ Thomas Andreas Peter: Characterization of osteosynthesis plates (PDF), dissertation at the ETH Zurich as a doctor of technical sciences, 2001, p. 139 f.
- ↑ Reliable connection systems - detachable, non-detachable or both? ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 758 kB) In: KGK Kautschuk Gummi Kunststoffe , Volume 58, No. 9/2005
