CN-122003531-A - Track fastener sealing system and method for sealing a track fastener assembly

Abstract

A track fastener sealing system includes a pin having a substantially cylindrical elongated body and a pin channel configured to receive a fastener securing a track to a tie. The sealing system also includes a seal at an end of the pin. The seal includes a flexible body having a central passage extending therethrough, and a lip extending circumferentially around an opening of the central passage. A lip of the seal is disposed near the end of the pin and at least a portion of the flexible body of the seal is located within the pin channel.

Inventors

• J S Fowler
• MIKES STEPHEN

Assignees

• 杰马克制造-特克斯有限责任公司

Dates

Publication Date

20260508

Application Date

20241004

Priority Date

20231004

Claims (20)

1. 1. A track fastener sealing system comprising: a pin having a cylindrical elongated body and a pin channel configured to receive a fastener securing the track to the tie; A seal at an end of the pin, the seal comprising: A flexible body having a central passage extending therethrough, and A lip extending circumferentially around the opening of the central passage; wherein the lip of the seal is disposed near the end of the pin and at least a portion of the flexible body of the seal is located within the pin channel.
2. 2. The system of claim 1, wherein the pin comprises a plurality of corrugations or threads inside the cylindrical elongate body.
3. 3. The system of claim 2, wherein the pin includes a non-threaded portion inside the cylindrical elongate body adjacent the end of the pin.
4. 4. The system of claim 1, wherein the seal reduces liquid from entering the pin channel when the fastener is inserted into the pin channel.
5. 5. The system of claim 1, wherein the pin comprises a plurality of corrugations or threads on an exterior of the cylindrical elongate body.
6. 6. The system of claim 1, wherein: The seal further includes a cap on an end of the flexible body closest to the lip, and The cap blocks access to the central passage of the seal from the end nearest the lip.
7. 7. The system of claim 6, wherein the cover is integrally formed with the seal.
8. 8. The system of claim 1, wherein the lip of the seal comprises a channel disposed in a lower surface of the lip.
9. 9. A track fastener sealing system comprising: A flexible body having a central passage extending therethrough; A lip extending circumferentially around the opening of the central passage, and A cover on an end of the flexible body closest to the lip, the cover blocking access to the central passage of the seal from the end closest to the lip.
10. 10. The system of claim 9, wherein the cover is integrally formed with the seal.
11. 11. The system of claim 9, further comprising: A reduced thickness portion of the cap that provides controlled rupture or removal of the cap when the seal is in use.
12. 12. The system of claim 11, wherein the reduced thickness portion of the cap is shaped as a mark to indicate a predetermined location of rupture of the cap.
13. 13. The system of claim 12, wherein the indicia is cross-shaped or "X" -shaped.
14. 14. The system of claim 9, wherein the lip includes a channel disposed in a lower surface of the lip.
15. 15. A track fastener sealing system comprising: A substantially cylindrical flexible body having a central passage extending therethrough, the central passage having a central axis, and A lip extending circumferentially around the opening of the central passage, the lip having an upper surface formed at an angle that is not perpendicular to the central axis of the central passage; Wherein the lip has a D-shape with an arcuate surface that is substantially parallel to the central axis of the central channel and a planar surface that is non-parallel to the central axis.
16. 16. The system of claim 15, wherein the lip includes a channel disposed in a lower surface of the lip.
17. 17. The sealing system of claim 15, wherein the lip includes an internal channel and at least one keyway formed in the lip.
18. 18. A method of sealing a rail fastening assembly, the method comprising: Inserting a pin into a hole in the tie, the pin having a substantially cylindrical elongate body forming a pin passage; Positioning a fastener into the pin channel to secure a track to the tie, and A seal is made between the pin and the fastener to reduce liquid ingress between the pin and the fastener.
19. 19. The method of claim 18, wherein sealing further comprises: disposing a seal at an end of the pin, the seal comprising: A flexible body having a central passage extending therethrough, the central passage having a central axis, and A lip extending circumferentially around the opening of the central passage; wherein the lip of the seal is disposed near the end of the pin and at least a portion of the flexible body of the seal is located within the pin channel.
20. 20. The method of claim 19, wherein prior to positioning a fastener into the pin channel, the seal further comprises: A cover on an end of the flexible body closest to the lip, the cover blocking access to the central passage and the pin passage from the end closest to the lip.

Description

Track fastener sealing system and method for sealing a track fastener assembly Cross Reference to Related Applications The present application claims priority and benefit from U.S. provisional application No. 63/542,515 filed on 4 th 10 of 2023, which is incorporated herein by reference in its entirety. Technical Field The present disclosure relates generally to the field of rail transportation, and more particularly to the sealing of fastener systems for fastening and securing rails to ties or other supports. Background For vehicles that travel on rails, such as trains, subways, trams, trolley buses, and railcars, a pair of parallel rails is typically provided to carry the weight of the rail vehicle and provide a directional path for travel. As rail vehicles and their loads are typically heavy, it is critical to provide a solid foundation under the rail. For tracks installed in both outdoor and indoor environments, the tracks are typically located on a bed of sleepers (rails) laid perpendicular to the tracks and supported by a base (bed) of rock, gravel, sand or other compactable material. The tie may be made of large wood that has been creosoted, but in some designs the tie may be made of concrete, polymer or other strong materials that are weather and moisture resistant. The track is located on top of and connected to the tie. Connecting the rails to the ties prevents excessive movement of the rails during passage of the rail vehicle and also maintains the spatial distance between the rails. The rail fastening assembly (RAIL FASTENING assembly) that connects the rail to each tie may vary somewhat depending on the type of tie, but typically includes bolts or other fasteners that penetrate the tie and secure the rail to the tie. Drawings Illustrative examples of the disclosure are described in detail below with reference to the attached drawing figures, which are incorporated herein by reference, and wherein: FIG. 1 illustrates a front cross-sectional view of a track fastener (RAIL FASTENER ) sealing system according to one embodiment, taken at 1-1; FIG. 2 illustrates a top view of the track fastener sealing system of FIG. 1; FIG. 3 illustrates an enlarged front cross-sectional view of the track fastener sealing system of FIG. 1; FIG. 4 illustrates a front cross-sectional view of a tie and pin (dowel) of a track fastener sealing system according to an embodiment; FIG. 5 illustrates an isometric front view of a track fastener sealing system according to an embodiment; FIG. 6 shows a top view of the track fastener sealing system of FIG. 5; FIGS. 7A and 7B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 7A-7A, of an embodiment of the track fastener sealing system of FIG. 5; FIGS. 8A and 8B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 8A-8A, of an embodiment of the track fastener sealing system of FIG. 5; FIG. 9 illustrates an isometric front view of a track fastener sealing system according to an embodiment; FIG. 10 shows a top view of the track fastener sealing system of FIG. 9; FIGS. 11A and 11B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 11A-11A, of an embodiment of the track fastener sealing system of FIG. 9; FIGS. 12A and 12B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 12A-12A, of an embodiment of the track fastener sealing system of FIG. 9; FIG. 13 illustrates an isometric front view of a track fastener sealing system according to an embodiment; FIG. 14 shows a top view of the track fastener sealing system of FIG. 13; 15A and 15B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 15A-15A, of an embodiment of the track fastener sealing system of FIG. 13; FIG. 16 illustrates a bottom view of the track fastener sealing system of FIG. 13; 17A and 17B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 17A-17A, of an embodiment of the track fastener sealing system of FIG. 13; FIG. 18 illustrates an isometric front view of a track fastener sealing system according to an embodiment; FIG. 19 shows a top view of the track fastener sealing system of FIG. 18; FIGS. 20A and 20B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 20A-20A, of an embodiment of the track fastener sealing system of FIG. 18; FIG. 21 shows a bottom view of the track fastener sealing system of FIG. 18, and FIGS. 22A and 22B illustrate a cross-sectional front view and an enlarged front view, respectively, taken at 22A-22A, of an embodiment of the track fastener sealing system of FIG. 18. The depicted figures are exemplary only, and are not intended to assert or imply any limitation with regard to the environments, architectures, designs, or processes in which different examples may be implemented. Detailed Description In the following detailed d