EP 1948959 A1 20080730 - SEGMENTED FIBER COMPOSITE LEAF SPRING AND METHOD FOR PRODUCING THE SAME
Title (en)
SEGMENTED FIBER COMPOSITE LEAF SPRING AND METHOD FOR PRODUCING THE SAME
Title (de)
SEGMENTIERTE FASERVERBUND-BLATTFEDER UND VERFAHREN ZUR HERSTELLUNG DERSELBEN
Title (fr)
RESSORT A LAMES COMPOSITE, RENFORCE PAR DES FIBRES, SEGMENTE ET PROCEDE DE PRODUCTION ASSOCIE
Publication
Application
Priority
- DE 2006001941 W 20061104
- DE 102005055050 A 20051116
Abstract (en)
[origin: WO2007056973A1] The invention relates to a leaf spring (1), produced from a fiber composite material, comprising a central longitudinal section (3) and two adjoining axial end sections (10, 11) for a wheel suspension on a motor vehicle, the end sections (10, 11) being tapered in relation to the width of the leaf spring. The leaf spring (1) is constituted of resin-impregnated unidirectional fibers (23) which extend axially, without being cut, between the axial ends (4, 5) of the leaf spring (1). The axial end sections (10, 11), before the unfinished leaf spring (2) is finished, have a substantially V-shaped recess or a substantially V-shaped final geometry, thereby forming two legs (8, 9) each that extend at an angle to the longitudinal extension of the unfinished leaf spring (2), said legs (8, 9) resting closely against each other in the finished leaf spring (1). The aim of the invention is to provide a fiber composite leaf spring of the aforementioned type that can be produced at low cost. For this purpose, the leaf spring (1, 2) is constituted of individual elongate segments (6; 13, 14) of substantially identical geometry which are separately produced as fiber composite bodies and which are assembled before being cured to give the leaf spring (1, 2).
IPC 8 full level
F16F 1/368 (2006.01); B29C 70/46 (2006.01); B29C 70/54 (2006.01)
CPC (source: EP US)
B29C 65/02 (2013.01 - EP US); B29C 66/435 (2013.01 - EP US); B29C 67/0044 (2013.01 - EP US); B29C 69/001 (2013.01 - EP US); B29C 70/46 (2013.01 - EP US); B29C 70/545 (2013.01 - EP US); F16F 1/368 (2013.01 - EP US); B29C 48/001 (2019.01 - EP US); B29C 48/0022 (2019.01 - EP US); B29C 48/12 (2019.01 - EP US); B29C 48/15 (2019.01 - EP US); B29C 66/1122 (2013.01 - EP US); B29L 2031/774 (2013.01 - EP US)
Citation (search report)
See references of WO 2007056973A1
Designated contracting state (EPC)
FR
DOCDB simple family (publication)
DE 102005055050 A1 20070524; DE 102005055050 B4 20070927; CN 101305202 A 20081112; DE 112006003687 A5 20081023; EP 1948959 A1 20080730; JP 2009516137 A 20090416; US 2009256296 A1 20091015; WO 2007056973 A1 20070524
DOCDB simple family (application)
DE 102005055050 A 20051116; CN 200680042271 A 20061104; DE 112006003687 T 20061104; DE 2006001941 W 20061104; EP 06818045 A 20061104; JP 2008540445 A 20061104; US 9414806 A 20061104