EP 2788821 B1 20190410 - SLIDING LAYER FOR A BARREL SPRING MADE OF A COMPOSITE MATERIAL
Title (en)
SLIDING LAYER FOR A BARREL SPRING MADE OF A COMPOSITE MATERIAL
Title (de)
GLEITSCHICHT FÜR UHRZUGFEDER AUS VERBUNDMATERIAL
Title (fr)
REVÊTEMENT ANTIFRICTION POUR RESSORT DE BARILLET EN MATÉRIAU COMPOSITE
Publication
Application
Priority
- EP 11192835 A 20111209
- EP 2012074139 W 20121130
- EP 12794714 A 20121130
Abstract (en)
[origin: EP2602671A1] The spring (1) has a coating (3) including a thermoplastic or thermosetting polymer, where the spring is made of a material including a polymer matrix containing fibers. The thermoplastic or thermosetting polymer includes a slow polymerization type epoxy resin, where the volume fraction of fibers in the polymer matrix is between 30 percent and 75 percent, preferably between 45 percent and 55 percent. The fibers are S or S2 type glass fibers, where the thickness of the coating is between 3 mm and 20 mm, or equal to a quarter of the width of a fiber. An independent claim is also included for a method for manufacturing a barrel spring.
IPC 8 full level
G04B 1/14 (2006.01)
CPC (source: EP US)
G04B 1/145 (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
DOCDB simple family (publication)
EP 2602671 A1 20130612; CN 104081294 A 20141001; EP 2788821 A1 20141015; EP 2788821 B1 20190410; HK 1198343 A1 20150402; JP 2015500474 A 20150105; US 2014355395 A1 20141204; WO 2013083494 A1 20130613
DOCDB simple family (application)
EP 11192835 A 20111209; CN 201280060582 A 20121130; EP 12794714 A 20121130; EP 2012074139 W 20121130; HK 14111837 A 20141124; JP 2014545190 A 20121130; US 201214361238 A 20121130