Search International and National Patent Collections

1. (WO2018086653) DOUBLE WRAP SPRING, ROTATION DEVICE AND SYSTEM TO BE ACTUATED

Pub. No.:    WO/2018/086653    International Application No.:    PCT/DE2017/100930
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Sat Nov 04 00:59:59 CET 2017
IPC: F16D 41/20
F16D 13/08
F16D 7/02
Applicants: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Inventors: SCHUMANN, Lars
Title: DOUBLE WRAP SPRING, ROTATION DEVICE AND SYSTEM TO BE ACTUATED
Abstract:
The invention relates to a double wrap spring and to a rotation device with the double wrap spring according to the invention, and to a system to be actuated. The double wrap spring (20) comprises an inner winding region (21) and an outer winding region (22), and also a transition region (23) mechanically connecting the inner winding region (21) to the outer winding region (22). When the double wrap spring is in the non-installed state, the winding regions (21, 22) are shaped as spirals on a common plane. The claimed double wrap spring enables a higher rigidity of the transition between the inner winding region and the outer winding region at a lower production cost.