Global Patent Index - EP 1908880 A1

EP 1908880 A1 20080409 - Rigid coupling of sleepers

Title (en)

Rigid coupling of sleepers

Title (de)

Biegesteife Koppelung von Schwellen

Title (fr)

Couplage résistant à la flexion de rails

Publication

EP 1908880 A1 20080409 (DE)

Application

EP 07117272 A 20070926

Priority

  • DE 102006045967 A 20060927
  • DE 102007014529 A 20070327

Abstract (en)

The method involves making multiple pre-stressed concrete sleepers (12, 14) in a long clamping bed and interspersing the concrete sleepers by clamping steel wires (20-30) clamped in the clamping bed. The steel wires are anchored at front surface with full or desired pre-stressing force on anchor plate elements (16, 18) running along a front surface of the concrete sleepers. The anchor plate elements are pre-stressed by pre-stressing steel with a smooth surface running in a longitudinal direction of the sleeper, with the same pre-stressing force as the sleeper. An independent claim is also included for a connection between two pre-stressed concrete sleepers, and/or sections of pre-stressed concrete sleepers in particular pre-stressed concrete switch-point sleepers.

Abstract (de)

Verfahren zum Herstellen von Stirnflächen aufweisenden Spannbetonschwellen (12,14), wobei mehrere Spannbetonschwellen in einem langen Spannbett hergestellt werden und die mehreren Spannbetonschwellen von in dem Spannbett gespannten Spannstahldrähten (24,26,28,30) durchsetzt werden. Entlang zumindest einer Stirnfläche der Spannbetonschwelle verläuft ein Ankeiplattenelement (16,18), in dem mit zumindest der vollen oder gewünschten Vorspannkraft die Spannstahldrähte an der Stirnfläche verankert werden.

IPC 8 full level

E01B 3/34 (2006.01); E01B 7/22 (2006.01)

CPC (source: EP)

E01B 3/34 (2013.01); E01B 7/22 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1908880 A1 20080409; DE 102007014529 A1 20080410

DOCDB simple family (application)

EP 07117272 A 20070926; DE 102007014529 A 20070327