EP 1630786 B1 20070307 - Sound board with fibre reinforced composite material for stringed instruments
Title (en)
Sound board with fibre reinforced composite material for stringed instruments
Title (de)
Resonanzplatte in Faserverbund-Bauweise für akustische Saiteninstrumente
Title (fr)
Table d'harmonie en matériau renforcé de fibres pour des instruments de musique à cordes
Publication
Application
Priority
DE 102004041010 A 20040824
Abstract (en)
[origin: EP1630786A1] The plate has fiber laminates (22, 23) on outer sides of a core plate (21) and having long fibers embedded in a carrier material. The plate (21) has a lower average density than the laminates. A part of the plate (21) having end regions of a central zone of the plate (21) has longitudinal compression strength greater than the longitudinal compression strength of the two outer zones of the plate (21) laterally adjoining the central zone.
IPC 8 full level
G10C 3/06 (2006.01); G10D 1/00 (2006.01); G10D 3/02 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1630786 A1 20060301; EP 1630786 B1 20070307; DE 102004041010 A1 20060302; DE 502005000447 D1 20070419; US 2006042447 A1 20060302; US 7208665 B2 20070424
DOCDB simple family (application)
EP 05007785 A 20050408; DE 102004041010 A 20040824; DE 502005000447 T 20050408; US 19514205 A 20050802