EP 1573133 B1 20111019 - FRAME SLEEPER AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
FRAME SLEEPER AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
RAHMENSCHWELLE UND VERFAHREN ZU DEREN HERSTELLUNG
Title (fr)
TRAVERSE DE CHASSIS ET SON PROCEDE DE PRODUCTION
Publication
Application
Priority
- DE 0303860 W 20031121
- DE 10254973 A 20021126
Abstract (en)
[origin: WO2004048695A1] The invention relates to a single-piece prestressed concrete frame sleeper comprising two cross-ties and two longitudinal supports which extend underneath the rails. Each of the four intersecting zones of the cross-ties (1) and longitudinal supports (2) is provided with at least one flat area which supports at least one elastic rail-bearing element (5). Said frame sleeper is sized regarding the geometry, material properties, and prestress such that at least two rail fasteners comprising two elastic spring elements (4) can be mounted onto each intersecting zone. The inventive frame sleeper can be produced by using prestress with a direct bond and clamping frames (9) for biaxial reinforcement such that the newly concreted sleeper is stripped upwards without turning the formwork shell (8) only once the concrete has reached a first degree of hardness, is stored upside down until being completely hard, and is turned into the normal position thereof only once the clamping power has been transmitted to the concrete and the sleeper has been separated from the clamping frame (9).
IPC 8 full level
E01B 3/34 (2006.01); B28B 23/06 (2006.01); E01B 3/28 (2006.01); E01B 3/38 (2006.01)
CPC (source: EP)
B28B 23/06 (2013.01); E01B 3/28 (2013.01); E01B 3/34 (2013.01)
Citation (examination)
US 1410185 A 19220321 - ICKES PETER C
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004048695 A1 20040610; AT E529570 T1 20111115; AU 2003292972 A1 20040618; DE 10254973 A1 20040609; DE 10394106 D2 20051020; EP 1573133 A1 20050914; EP 1573133 B1 20111019
DOCDB simple family (application)
DE 0303860 W 20031121; AT 03788802 T 20031121; AU 2003292972 A 20031121; DE 10254973 A 20021126; DE 10394106 T 20031121; EP 03788802 A 20031121