EP 1170419 A2 20020109 - Soundproof ballastless railway track superstructure and sound absorption element
Title (en)
Soundproof ballastless railway track superstructure and sound absorption element
Title (de)
Schallgedämmter, schotterloser Gleisoberbau sowie Schallabsorptionselement
Title (fr)
Superstructure insonorisée de voie ferrée sans ballast et élément d'absorption acoustique
Publication
Application
Priority
DE 10033000 A 20000706
Abstract (en)
Sound-absorbing ballast-free railway track for rail vehicles comprises a supporting layer holding tracks (4) and covered with weather-resistant sound-absorbing elements (6, 7) at least in the region of the tracks. The sound-absorbing elements have rounded contours at least in the region of their surfaces (10, 11) facing, especially perpendicular to the longitudinal direction of the track. Sound-absorbing elements which are adjacent to or arranged behind each other are joined together. An Independent claim is also included for a sound-absorbing element for inserting in ballast-free railway tracks. Preferred Features: The opposite-lying, especially side surfaces of the individual sound-absorbing elements are provided with concave and convex contours. The rounded contours are essentially parallel.
Abstract (de)
Schallgedämmter schotterloser Gleisoberbau für Schienenfahrzeuge mit einer Fahrschienen aufnehmenden Tragschicht, die zumindest im Bereich der Fahrschienen mit witterungsbeständigen Schallabsorptionselementen (6,7) belegt ist, wobei die Schallabsorptionselemente zumindest im Bereich ihrer einander zugewandten, insbesondere quer zur Schienenlängsrichtung verlaufenden Flächen gerundete Konturen aufweisen und, daß neben- und/oder hintereinander angeordnete Schallabsorptionselemente miteinander verbunden sind. <IMAGE>
IPC 1-7
IPC 8 full level
E01B 19/00 (2006.01)
CPC (source: EP)
E01B 19/003 (2013.01)
Citation (applicant)
DE 2729248 A1 19790104 - ZUEBLIN AG
Designated contracting state (EPC)
BE FR GB NL
DOCDB simple family (publication)
EP 1170419 A2 20020109; EP 1170419 A3 20021002; DE 10033000 A1 20020117
DOCDB simple family (application)
EP 01116434 A 20010706; DE 10033000 A 20000706