Rail fastening system
Rail fastening system ( 1 ) for fastening a rail ( 2 ) to a rail subsurface, preferably for a ballastless track, comprising a base plate ( 10 ), preferably made of a plastic, and at least one dowel ( 20 ), wherein the base plate ( 10 ) has at least one opening ( 15 ), which completely penetrates the base plate ( 10 ) in the thickness direction, and the dowel ( 20 ) is introduced into the opening ( 15 ), is held therein by means of a retaining contour and projects in the thickness direction at least on one side beyond the base plate ( 10 ).
1. A rail fastening system ( 1 ) for fastening a rail ( 2 ) to a rail subsurface, comprising:
a base plate ( 10 ); and
at least one dowel ( 20 ),
wherein the base plate ( 10 ) has at least one opening ( 15 ) which completely penetrates the base plate ( 10 ) in a thickness direction,
wherein the at least one dowel ( 20 ) is introduced into the opening ( 15 ), is held in the opening ( 15 ) by a retaining contour, and projects in a thickness direction at least on one side beyond the base plate ( 10 ),
wherein the base plate ( 10 ) has
a mounting surface ( 11 ) for connecting one or more components for rail fastening and
a bearing surface ( 14 ) opposite the mounting surface ( 11 ) in the thickness direction,
wherein the opening ( 15 ) penetrates the mounting surface ( 11 ) and the bearing surface ( 14 ) and the dowel ( 20 ) projects beyond the base plate ( 10 ) on the side of the bearing surface ( 14 ),
wherein, in order to realize the retaining contour, the opening ( 15 ) has an internal thread ( 16 ) and/or the dowel ( 20 ) has an external thread ( 23 ), which is configured in such a manner that the dowel ( 20 ) can be screwed into the opening ( 15 ) from a side of the mounting surface ( 11 ).
2. The rail fastening system ( 1 ) according to claim 1 , wherein the rail subsurface is a ballastless track.
3. The rail fastening system ( 1 ) according to claim 1 , wherein the base plate ( 10 ) is made of a plastic.
4. The rail fastening system ( 1 ) according to claim 1 , wherein the dowel ( 20 ) is introduced into the opening ( 15 ) from the side of the mounting surface ( 11 ).
5. The rail fastening system ( 1 ) according to claim 1 , wherein the mounting surface ( 11 ) comprises
a rail support section ( 12 ) which is configured to support the rail ( 2 ) and/or
one or more receptacles ( 13 ), which are configured to accommodate angle guide plates ( 4 ).
6. The rail fastening system ( 1 ) according to claim 1 , wherein the mounting surface ( 11 ) comprises an inclined rail support section ( 12 )
which is configured to support the rail ( 2 ) via a damping and/or springing intermediate layer ( 3 ).
7. The rail fastening system ( 1 ) according to claim 1 , wherein the bearing surface ( 14 ) has a ribbed structure.
8. The rail fastening system ( 1 ) according to claim 1 ,
wherein the dowel has the external thread, and
wherein the external thread ( 23 ) has two sections of different thread characteristics.
9. The rail fastening system ( 1 ) according to claim 1 , wherein the dowel ( 20 ) has a dowel head ( 21 ), a diameter of which exceeds a smallest diameter of the opening ( 15 ).
10. The rail fastening system ( 1 ) according to claim 1 , wherein a tensioning screw ( 6 ) is screwed into the dowel ( 20 ).
11. The rail fastening system ( 1 ) according to claim 10 , wherein a tensioning clamp ( 5 ) is screwed by the tensioning screw ( 6 ) in such a manner that a retaining section of the tensioning clamp ( 5 ) presses on a rail foot ( 2 a ) of the rail ( 2 ) in a springing elastic manner.
12. The rail fastening system ( 1 ) according to claim 1 , wherein the base plate ( 10 ) and the dowel ( 20 ) are at least partially anchored in a concrete bed ( 7 ) or are at least partially overmolded by concrete.
13. The rail fastening system ( 1 ) according to claim 12 ,
wherein the base plate ( 10 ) is seated in the concrete bed ( 7 ) 8 to 15 mm deep in the thickness direction, and/or
wherein the dowel ( 20 ) extends 120 mm deep or deeper into the concrete bed ( 7 ).
14. The rail fastening system ( 1 ) according to claim 1 ,
wherein the base plate ( 10 ) has two openings ( 15 ) which completely penetrate the base plate ( 10 ) in the thickness direction, and
wherein the rail fastening system ( 1 ) has two dowels ( 20 ) which are correspondingly introduced into the two openings ( 15 ), are held therein in each case by a retaining contour and project beyond the base plate ( 10 ) in the thickness direction.
15. A method for producing a rail fastening system, comprising:
providing the rail fastening system according to claim 1 ,
wherein the dowel ( 20 ) is introduced into the opening ( 15 ) in such a manner that it is held therein by the retaining contour and projects in the thickness direction of the base plate ( 10 ) at least on one side beyond the base plate ( 10 ).
16. The method according to claim 15 ,
wherein the base plate ( 10 ) has a mounting surface ( 11 ) for connecting one or more components for rail fastening and a bearing surface ( 14 ) opposite the mounting surface ( 11 ) in the thickness direction, and
wherein the dowel ( 20 ) is introduced into the opening ( 15 ) from the side of the mounting surface ( 11 ) in such a manner that it projects beyond the base plate ( 10 ) on the side of the bearing surface ( 14 ).
17. The method according to claim 15 ,
wherein the dowel ( 20 ) and/or the base plate ( 10 ) are not deformed when the dowel ( 20 ) is introduced into the opening ( 15 ).
18. The method according to claim 15 ,
wherein no deformation of the retaining contour does not take place when the dowel ( 20 ) is introduced and held in the opening ( 15 ), and
wherein the dowel is embedded in concrete and can be removed or replaced without damaging the concrete.