US20230056693A1 - Block boot for railway track systems - Google Patents

Block boot for railway track systems Download PDF

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Publication number
US20230056693A1
US20230056693A1 US17/795,008 US202117795008A US2023056693A1 US 20230056693 A1 US20230056693 A1 US 20230056693A1 US 202117795008 A US202117795008 A US 202117795008A US 2023056693 A1 US2023056693 A1 US 2023056693A1
Authority
US
United States
Prior art keywords
block
block boot
ribs
rib
boot according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/795,008
Other languages
English (en)
Inventor
Peter Laborenz
Jose David PEREZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SONNEVILLE AG
Original Assignee
SONNEVILLE AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SONNEVILLE AG filed Critical SONNEVILLE AG
Assigned to SONNEVILLE AG reassignment SONNEVILLE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Laborenz, Peter, PEREZ, Jose David
Publication of US20230056693A1 publication Critical patent/US20230056693A1/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • E01B1/005—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with sleeper shoes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/09—Ballastless systems

Definitions

  • the invention relates to a block boot for railway track systems according to the preamble of claim 1 .
  • So-called slab tracks are increasingly preferred to ballasted tracks since they allow an increased performance of the track with regard to the attainable speeds and reduced maintenance costs.
  • sleeper block units are used where a sleeper block that is usually made of concrete is received in a block boot made of molded rubber and an elastomer damper is placed between the bottom of the sleeper block and the bottom of the block boot.
  • the block boot is encased in concrete, and on the upper side of the sleeper block, a fastening system for a rail is arranged. It has been known for some time to provide ribs on the inner walls of such block boots in order to reduce the contact area between the block boot and the sleeper block.
  • the fins lead to some difficulties in the manufacture of the block boot.
  • the mold has to be thoroughly cleaned before every molding process.
  • the fine grooves that will subsequently form the fins have to be carefully cleaned so that they will be entirely filled with rubber during the molding process.
  • the finished block boot is removed from the mold, there is a risk that the fine fins remain caught in the aforementioned grooves and are torn off from the block boot.
  • the risk that the fine fins are already snapped or sheared off while the block boot is assembled with the sleeper block cannot be entirely excluded either.
  • vertex line designates a theoretical line extending furthest from the respective side wall along the rib at the free end of each rib.
  • the tapered shape of the rib eliminates a weakness of the known prior art, namely the small cross-sectional area of the fin at its junction to the rib, and thereby promotes both a simpler manufacture of the block boot and its durability without impairing its advantageous properties.
  • FIG. 1 a top view of a block boot of the invention
  • FIG. 2 a section along line II-II in FIG. 1 through a long side wall of the block boot of FIG. 1 ;
  • FIG. 3 a detail of FIG. 2 on an enlarged scale over FIG. 2 ;
  • FIG. 4 a section along line IV-IV in FIG. 1 through a short side wall of the block boot of FIG. 1 ;
  • FIG. 5 a detail of FIG. 4 on an enlarged scale over FIG. 4 .
  • Block boot 1 has a substantially rectangular ground plan with rounded edges 4 , two long side walls 2 , two short side walls 3 , a bottom 5 ( FIG. 2 ) and an upper opening 6 with a surrounding rim 7 . Its height is e.g. 158 mm. As known from the prior art, side walls 2 and 3 are slightly inclined in order to allow a later replacement of the sleeper block and of the encased block boot 1 .
  • FIG. 2 shows a section through long side wall 2 of block boot 1 along line II — II in FIG. 1 .
  • Rim 7 of upper opening 6 upwardly tapers to an apex 8 that will subsequently lie against the sleeper block, prevents the ingress of dust and guides water running down on the outside of the sleeper block to the outside of block boot 1 .
  • rim 7 is provided with a surrounding bulge 9 that reinforces rim 7 and forms a mark for the concrete filling height while the sleeper block unit is being encased.
  • the transition from side wall 2 as well as side wall 3 ( FIG. 4 ) to bottom 5 forms a radius.
  • ribs 10 that extend in parallel to bottom 5 and rim 7 are arranged, in the illustrated example 18 of them. Alternatively, more or less ribs 10 may be provided. In the illustrated example, the dimensions of ribs 10 and their intervals are uniform.
  • FIG. 3 shows a detail of FIG. 2 illustrating two ribs 10 at an enlarged scale over that of FIG. 2 .
  • each one of ribs 10 first tapers slightly conically from a base width 13 toward the interior of block boot 1 and ends in a rounded shape having a radius 11 .
  • Reference numeral 24 denotes a vertex line that extends at the highest point of rib 10 , as measured from side wall 2 , along rib 10 perpendicularly to the drawing plane of FIG. 3 .
  • 12 denotes the height of rib 10 , and 14 the space between two ribs 10 . Due to the radius 11 of ribs 10 , the contact area between the block boot and a sleeper block subsequently received therein is nearly reduced to a contact line per rib 10 in the area of vertex line 24 .
  • FIG. 4 shows a section through short side wall 3 of block boot 1 along line IV-IV in FIG. 1 .
  • ribs 15 that extend in parallel to rim 7 and bottom 5 are arranged, in the illustrated example 9 of them. Alternatively, more or less ribs 15 may be provided. In the illustrated example, the dimensions of ribs 10 and their intervals are uniform.
  • a drainage opening 23 is provided in side wall 3 , directly above the bottom, so that water that may be present in block boot 1 may flow off before encasing.
  • FIG. 5 shows a detail of FIG. 4 illustrating one rib 15 entirely and a second one partly at an enlarged scale over that of FIG. 4 .
  • each one of ribs 15 extends toward the interior of block boot 1 and asymmetrically tapers from a base width 19 to an apex having a small radius 17 of e.g. less than 1 mm, while a shorter wall section 20 forms a steeper angle and a longer wall section 21 forms a flatter angle with side wall 3 .
  • Wall sections 20 and 21 are preferably straight but may alternatively be slightly convex.
  • Reference numeral 25 denotes a vertex line that extends at the highest point of rib 15 , as measured from side wall 3 , along rib 15 perpendicularly to the drawing plane of FIG.
  • the rigidity of the block boot under lateral forces is variable.
  • the higher the lateral force the larger the contact area becomes since rib 15 is increasingly compressed and the resistance to the lateral forces increases.
  • the described design of the ribs enhances the elastic properties of the block boot in the sense that the block boot recovers its original shape more quickly under low lateral forces.
  • the variability of the contact surfaces under lateral forces also increases the longevity of the block boot since a constant contact of the entire surface of the rib on the sleeper block is avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US17/795,008 2020-01-28 2021-01-14 Block boot for railway track systems Pending US20230056693A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20154091.1 2020-01-28
EP20154091 2020-01-28
PCT/EP2021/050638 WO2021151675A1 (en) 2020-01-28 2021-01-14 Block boot for railway track systems

Publications (1)

Publication Number Publication Date
US20230056693A1 true US20230056693A1 (en) 2023-02-23

Family

ID=69374228

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/795,008 Pending US20230056693A1 (en) 2020-01-28 2021-01-14 Block boot for railway track systems

Country Status (6)

Country Link
US (1) US20230056693A1 (de)
EP (1) EP4097299A1 (de)
KR (1) KR20210099551A (de)
AU (1) AU2021212688A1 (de)
BR (1) BR112022014265A2 (de)
WO (1) WO2021151675A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741090B1 (fr) * 1995-11-09 1998-01-30 Allevard Sa Chausson pour traverse de voie de chemin de fer sans ballast
FR2740788B1 (fr) * 1995-11-07 1998-01-23 Vagneux Traverses Beton Traverse de chemin de fer et elements constitutifs d'une telle traverse
US6364214B1 (en) 2000-06-30 2002-04-02 Sonneville International Corporation Block boot for railway track systems
EP3358077A1 (de) * 2017-02-01 2018-08-08 Margaritelli Ferroviaria S.p.A. Verkleideter querträger und methode zur herstellung dieses verkleideten querträgers
US20190345675A1 (en) * 2018-05-10 2019-11-14 Press-Seal Corporation Vibration dampening railway tie boot

Also Published As

Publication number Publication date
WO2021151675A1 (en) 2021-08-05
EP4097299A1 (de) 2022-12-07
BR112022014265A2 (pt) 2022-09-20
KR20210099551A (ko) 2021-08-12
AU2021212688A1 (en) 2022-08-04

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AS Assignment

Owner name: SONNEVILLE AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LABORENZ, PETER;PEREZ, JOSE DAVID;REEL/FRAME:060602/0305

Effective date: 20201215

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION