Abstract
Rail pad, in particular for track superstructures, comprising a substantially level intermediate layer having an upper side and a lower side, wherein the upper side is designed for arrangement to a rail and the lower side for arrangement to a sleeper, wherein the upper side and/or the lower side are provided with at least one arrangement region on which the rail or the sleeper can be arranged, wherein the rail pad comprises at least one side region arranged adjacent to the intermediate layer and wherein the side region comprises an engaging section and/or a fastening section, wherein the engaging section is designed for accommodation on the sleeper, and wherein the fastening section is designed to directly and/or indirectly connect to the rail.
Claims
1. A rail pad for track superstructures, comprising: a substantially level intermediate layer having an upper side and a lower side, wherein the upper side is designed for arrangement on a rail and the lower side for arrangement on a sleeper; two side regions which are adjacent to the intermediate layer; and at least one recess which extends substantially in longitudinal direction and which forms at least one connecting web which extends substantially transverse to the longitudinal direction, wherein on the upper side and/or on the lower side at least one arrangement region is formed on which the rail or the sleeper can be arranged, wherein the at least one arrangement region is formed as projection which substantially extends transversely to the intermediate layer, wherein the side regions are provided with an engaging section and/or a fastening section, wherein the engaging section is designed to be arranged on the sleeper, and wherein the fastening section is designed to directly and/or indirectly fasten the rail, wherein the engaging section is oriented away from the lower side and substantially in the direction of the sleeper.
2. The rail pad according to claim 1, wherein the intermediate layer does not extend along the entire width of a rail foot.
3. The rail pad according to claim 1, wherein the side region is form-fittingly and/or force-fittingly and/or by firmly bonding incorporated in an angular guide plate and/or in a part of a fastclip fastening system.
4. The rail pad according to claim 1, wherein the engaging section extends substantially in the longitudinal direction (L).
5. The rail pad according to claim 1, wherein the intermediate layer is made of a first material, wherein the at least one arrangement region is made of a second material, and wherein the first material is harder than the second material.
6. The rail pad according to claim 1, wherein the intermediate layer comprises a holding section which limits the arrangement region substantially transverse to the longitudinal direction.
7. The rail pad according to claim 6, wherein the holding section substantially has a height (d.sub.H) transverse to the upper side, wherein the ratio of the height (d.sub.H) to a thickness (d) of the intermediate layer is at a range between about 0.1 and 0.7.
8. A rail pad arrangement comprising: two rail pads, each comprising: one substantially level intermediate layer which has an upper side and a lower side, wherein the upper side is designed to be arranged on a rail and the lower side to be arranged on a sleeper; and a side region which is adjacent to the intermediate layer and wherein the side region comprises an engaging section and/or a fastening section, wherein at least one arrangement region is formed on the upper side and/or on the lower side on which the rail or the sleeper can be arranged, wherein the engaging section is designed to be arranged on the sleeper, and wherein the fastening section is designed to be directly or indirectly fastened to the rail, wherein the engaging section is oriented away from the lower side and substantially in the direction of the sleeper, and wherein the rail pads are connected by at least one connecting web with a clearance.
9. The rail pad arrangement according to claim 8, wherein the two rail pads form a contact region at which the two rail pads touch.
10. The rail pad arrangement according to claim 9, wherein the connecting web is positively and/or nonpositively connected and/or bonded to at least one rail pad.
Description
(1) Further advantages and characteristics result from the following description of preferred embodiments of the rail pad according to the invention, the rail pad arrangement according to the invention, the intermediate layer according to the invention and the side region according to the invention, with reference to the enclosed figures. Individual characteristics of the individual embodiments can be combined with each other as part of the invention. By making reference to the figures,
(2) FIG. 1 shows a preferred embodiment of a rail pad arrangement consisting of two rail pads;
(3) FIG. 2 shows a preferred embodiment of a rail pad seen across the longitudinal direction;
(4) FIG. 3a shows a preferred embodiment of two intermediate layers and two side regions;
(5) FIG. 3b shows a preferred embodiment of a continuous intermediate layer;
(6) FIG. 4a shows a top view of a preferred embodiment of a rail pad arrangement;
(7) FIG. 4b shows a preferred embodiment of a rail pad arrangement with two connecting webs;
(8) FIG. 5 shows a top view of a preferred embodiment of a rail pad;
(9) FIG. 6a shows a top view of a preferred embodiment of a rail pad arrangement;
(10) FIG. 6b shows a preferred embodiment of a rail pad arrangement with a centrally arranged connecting web;
(11) FIG. 7 shows a preferred embodiment of a rail pad arrangement provided with a contact region;
(12) FIG. 8a shows a preferred embodiment of an intermediate layer with three arrangement regions formed as projections;
(13) FIG. 8b shows a preferred embodiment of an intermediate layer with three arrangement regions formed as projections on the upper side and on the lower side;
(14) FIG. 8c shows a preferred embodiment of an intermediate layer with continuous arrangement regions;
(15) FIG. 8d shows a preferred embodiment of an intermediate layer with three flush arrangement regions;
(16) FIG. 8e shows a preferred embodiment of an intermediate layer with three continuous and flush arrangement regions;
(17) FIG. 8f shows a preferred embodiment of an intermediate layer with three semi-circular arrangement regions.
(18) FIG. 1 shows a preferred embodiment of a rail pad arrangement 70 consisting of a left and a right rail pad 20. This is a cross-sectional presentation whereas in some of the following figureshatching is dispensed with for the sake of clarity. Between the two rail pads 20, a rail 80 is arranged on the two arrangement regions 26 which are formed as projections 27. The arrangement regions 26 extend from the upper sides 23 of the intermediate layer 22 in the direction of rail 80. Over their lower sides 24, the intermediate layers 22 are arranged on a sleeper 90. Each of the two rail pads 20 are provided with side regions 40 which have engaging sections 42. The engaging sections 42 engage in the corresponding recesses (without reference number) of sleeper 90. It can be clearly seen that the intermediate layers 22 are continuously connected with the side regions 40, wherein the side regions 40 are incorporated in the rail pad arrangements 92. In particular in the preferred embodiment shown in FIG. 1 the side regions 40 are designed as angular guide plates (such as in superstructure W). It is clearly seen that substantially the intermediate layers 22 transverse to a longitudinal direction L, which extends substantially in the direction of travel, are not arranged below an entire width of rail 80. Across the longitudinal direction L, the rail 80 or the foot of rail 80, is held by corresponding holding sections 46 which substantially extend across the upper sides 23 of the intermediate layers 22.
(19) FIG. 2 shows a preferred embodiment of a rail pad 20 which comprises two side regions 40 and an intermediate layer 22. The rail pad 20 is arranged on a sleeper 90 via a lower side 24. On an upper side 23 are three arrangement regions 26 formed as three projections 27 which serve to arrange a rail 80. The side regions 40 each comprise an engaging section 42 and fastening sections 44 which are incorporated in the rail fastening systems 92, also formed as angular guide plates. Across a longitudinal direction L, the rail pad 20 or the intermediate layer 22 each form two holding sections 46 which fix the rail 80 across longitudinal direction L. Substantially parallel to the sleeper 90, the intermediate layer 22 has a thickness d, and the holding section(s) 46 has/have a height d.sub.H.
(20) FIG. 3a shows a preferred embodiment of two intermediate layers 22 and two side regions 40. The design substantially corresponds to the embodiments known from FIGS. 1 and 2. One difference is that the rail pad 20 is not in one piece but consisting of an intermediate layer 22 and a side region 40. The side regions 40 and the adjacent intermediate layers 22 are connected via the connecting regions 48 and connecting means 74. The connecting means 74 are only sketched as a dotted line in the embodiment shown in FIG. 3a. This could be conceived as a form-fittingly and/or force-fittingly and/or a firmly bonded connection. The two side regions 40 each form a fastening section 44 in the form of a limiting element 45. Furthermore, each side region 40 comprises a fastening section 44 which serves to indirectly fasten a rail 80 via a rail clamp (without reference number).
(21) FIG. 3b shows the embodiment known from FIG. 3a of two rail pads, wherein intermediate layers 22 are continuous and extend under the side regions 40. The engagement sections 43 are consequently formed on the intermediate layers 33 or their undersides 24.
(22) FIG. 4a shows a rail pad arrangement 70 consisting of two rail pads 20 adjoining each other via a contact region 72, thus forming connecting web 62. The rail pads 20 each have three arrangement regions 26 formed as projections 72 which extend away from upper sides 23 of corresponding intermediate layers (without reference number in FIG. 4a). The rail pads 20 each comprise a side region 40 which are formed as part of rail fastening systems 92, in this case fastclip systems, and incorporated therein. Fastening sections 44 are designed as sidewall insulators of the fastclip systems. In this embodiment the fastening sections 44 have limiting elements 45 or are partly designed as limiting elements 45 which can fix a rail (not shown here) substantially across a longitudinal direction L.
(23) FIG. 4b shows the embodiment of a rail pad arrangement 70 known from FIG. 4a with two connecting webs 62.
(24) FIG. 5 shows a preferred embodiment of a rail pad 20 on whose upper side 23 a total of six arrangement regions 26 designed as projections 27 are formed. Between the arrangement regions 26, substantially in a longitudinal direction L, is a recess 60 forming a connecting web 62. It is to be understood that for example two connecting webs 62 can be formed. The rail pad 20 has two side regions 40, each of which is part of a rail pad fastening system 92. Otherwise, the description of FIG. 4a applies.
(25) FIG. 6a shows a preferred embodiment of a rail pad arrangement 70 consisting of two rail pads 20. On their upper side 23, the two rail pads 20 have three arrangement regions formed as projections 27. Each rail pad 20 is provided with a side region 40 which is incorporated by form-fittingly and/or force-fittingly connection and/or bonding to a rail fastening system (92) (in this case a fastclip system).
(26) FIG. 6b shows the preferred embodiment of FIG. 61 of a rail pad arrangement 70 with a connecting web 62 formed in the middle, which prevents twisting.
(27) In contrast to the above, FIG. 7 shows a preferred embodiment of a rail pad arrangement 70 with a contact region 72. In longitudinal direction L, the contact region 72 is substantially curved or meandering. Otherwise, the description of FIG. 4a applies to the embodiments shown in FIGS. 6a and 7.
(28) FIG. 8a shows a preferred embodiment of an intermediate layer 22 with a lower side 24 and an upper side 23. On upper side 23, three arrangement regions 26 are formed as projections 27. Substantially across the intermediate layer is a height d.sub.v of the projections and a thickness d of the intermediate layer 22.
(29) FIG. 8b shows the preferred embodiment known from FIG. 8a of an intermediate layer 22 with a lower side 24 and an upper side 23, wherein arrangement regions 26 on the upper side 23 and on the lower side 24 are formed as projections 27.
(30) FIG. 8c shows a preferred embodiment of an intermediate layer 22 with a lower side 24 and an upper side 23. The intermediate layer 22 is divided into three arrangement regions 26, each of which have projections 27 on the upper side 23 and the lower side 24.
(31) FIG. 8d shows a preferred embodiment of an intermediate layer 22 with an upper side 23 and a lower side 24. The arrangement layers 26 are flush with upper side 23 and are practically inserted in the intermediate layer 22.
(32) FIG. 8e shows a preferred embodiment of an intermediate layer 22 with an upper side 23 and a lower side 24. In the section shown, the intermediate layer 22 is divided into substantially cylindrical arrangement regions 26. It is to be understood thatfor example in reference to upper side 23the arrangement regions can also have any kind of cross section such as oval, elliptical, triangular, quadrangular or generally polygonal.
(33) FIG. 8f shows a preferred embodiment of an intermediate layer 22 with an upper side 23 and a lower side 24. A semi-circular arrangement region 26 is formed on the lower side 24. Two semi-circular arrangement regions 26 are formed on the upper side 23.
REFERENCE NUMBERS
(34) 26 Rail pad 22 Intermediate layer 23 Upper side 24 Lower side 26 Arrangement region 27 Projection 40 Side region 42 Engaging section 44 Fastening section 45 Limiting element 46 Holding section 48 Connecting section 60 Recess 72 Contact region 74 Fastening means 80 Rail 90 Sleeper 92 Rail fastening system d.sub.H Height of the holding section d.sub.v Height of the intermediate layer d Thickness of the intermediate layer L Longitudinal direction
