Shell cross-member system and railway section including such a system
This cross-member system with shell ( 10 ) for a railroad track, intended to be wedged in an apron of the railroad track, of the type including a cross-member ( 12 ) having a lower face ( 20 ), and an upper face ( 22 ) that is intended to receive a rail fastening system ( 14 ), and a shell, is characterized in that the shell envelops substantially the entire cross-member so as to define an inner volume for receiving the cross-member that is sealed against outside attacks.
1. A shell cross-member system for a railroad track, configured to be fixed in an apron of the railroad track, the shell cross-member system comprising:
a cross-member having a lower face and an upper face, the upper face receiving a rail fastening system; and
a shell that substantially entirely envelops the cross-member to define an inner volume for receiving the cross-member, the inner volume being sealed against outside attacks, the shell comprising
a lower half-shell that is a liner, receiving the cross-member, the liner including a bottom and a raised peripheral wall bordering the bottom, and
an upper half-shell that is a cover, receiving the cross-member, the cover including a ceiling and a fallen peripheral wall,
a rim of the raised peripheral wall of the liner and a rim of the fallen peripheral wall of the cover cooperating to sealably close the shell,
the rim of the peripheral wall of the liner including
a first planar portion angled outwardly,
a first substantially horizontal edge, and
a first downward end,
the rim of the peripheral wall of the cover including
a second portion having an outer face, configured to be pressed against the first planar portion of the rim of the liner and angled identically to the first planar portion, the outer face being provided with a slot that is open toward the first planar portion and that receives a sealing gasket,
a second substantially horizontal edge, and
a second downward end.
2. The shell cross-member system according to claim 1 , wherein the cover is fixed to the liner by snapping or riveting of the rims of the liner and the cover.
3. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 2 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.
4. The shell cross-member system according to claim 1 , further comprising a rail fastening system mounted on the upper face of the cross-member.
5. The shell cross-member system according to claim 4 , wherein the shell is sandwiched between the rail fastening system and the cross-member.
6. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 5 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.
7. The shell cross-member system according to claim 4 , wherein the shell includes an aperture, a contour thereof being configured to engage a slot provided on the upper face of the cross-member around an installation zone of the rail fastening system.
8. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 7 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.
9. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 4 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.
10. The shell cross-member system according to claim 1 , further comprising a resilient soleplate positioned between the cross-member and the shell.
11. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 10 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.
12. The shell cross-member system according to claim 1 , wherein the shell is made from a rigid material.
13. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 12 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.
14. A railway track segment, comprising:
an apron;
a plurality of the shell cross-member systems according to claim 1 , the shell cross-member systems being fixed in the apron; and
a pair of rolling rails fastened on each of the shell cross-member systems.