EP 3948008 A1 20220209 - METHOD FOR INSTALLING A WRAP SPRING
Title (en)
METHOD FOR INSTALLING A WRAP SPRING
Title (de)
VERFAHREN ZUR MONTAGE EINER SCHLINGBANDFEDER
Title (fr)
PROCÉDÉ DE MONTAGE D'UN RESSORT À BANDE ENVELOPPANTE
Publication
Application
Priority
- DE 102019108656 A 20190403
- DE 2020100098 W 20200213
Abstract (en)
[origin: WO2020200352A1] The invention relates to a method for installing a wrap spring (14), in which method: a first sleeve (12) is provided; a wrap spring (14) designed to frictionally abut a lateral surface (20) of the first sleeve (12) is applied, in the relaxed state, to the lateral surface (20) of the first sleeve (12) at an angle to a first longitudinal axis (18) of the first sleeve (12) extending in the axial direction; then the wrap spring (14) is elastically twisted while the wrap spring (14) contacts the lateral surface (20) of the first sleeve (12); a resulting angle (a) between the first longitudinal axis (18) and a central axis (16) of the wrap spring (14) is reduced; the wrap spring (14) is threaded onto the first sleeve (12); and subsequently the wrap spring (14) is relaxed in order to establish frictional contact with the lateral surface (20) of the first sleeve (12). This enables a simple, in particular automated, installation of a wrap spring (14).
IPC 8 full level
F16F 1/04 (2006.01); F16F 1/06 (2006.01); F16F 1/12 (2006.01); F16F 15/12 (2006.01); F16F 15/121 (2006.01)
CPC (source: EP US)
B23P 19/048 (2013.01 - US); F16D 41/206 (2013.01 - EP US); F16F 1/042 (2013.01 - EP); F16F 1/06 (2013.01 - EP); F16F 1/12 (2013.01 - EP); F16F 15/1203 (2013.01 - EP US); F16D 13/08 (2013.01 - US); F16D 13/12 (2013.01 - US); F16D 2250/0084 (2013.01 - US); F16D 2300/12 (2013.01 - EP US); F16F 7/065 (2013.01 - US); F16F 15/1216 (2013.01 - EP US); F16F 2226/04 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020200352 A1 20201008; CN 113423967 A 20210921; CN 113423967 B 20230901; DE 102019108656 A1 20201008; DE 102019108656 B4 20220203; EP 3948008 A1 20220209; US 11754129 B2 20230912; US 2022145947 A1 20220512
DOCDB simple family (application)
DE 2020100098 W 20200213; CN 202080013477 A 20200213; DE 102019108656 A 20190403; EP 20707558 A 20200213; US 202017436403 A 20200213