SK280759B6 - Dowel for prestressed concrete sleepers - Google Patents
Dowel for prestressed concrete sleepers Download PDFInfo
- Publication number
- SK280759B6 SK280759B6 SK1475-92A SK147592A SK280759B6 SK 280759 B6 SK280759 B6 SK 280759B6 SK 147592 A SK147592 A SK 147592A SK 280759 B6 SK280759 B6 SK 280759B6
- Authority
- SK
- Slovakia
- Prior art keywords
- cap
- clip
- prestressed concrete
- dowel
- cylindrical body
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
- E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
- E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers
Abstract
Description
Oblasť technikyTechnical field
Vynález sa týka príchytky do podvalov z predpätého betónu.The invention relates to a fastener for prestressed concrete sleepers.
Doterajší stav technikyBACKGROUND OF THE INVENTION
Príchytky z plastu, určené na ukotvenie upevňovacích skrutiek koľajníc v betónových podvaloch, sú známe. Príchytky do podvalov z predpätého betónu, vyrábané priebežným pracovným postupom (napríklad do podvalov „Abetong“), majú uzavretý tvar. Príchytka sa do betónu zalieva a dosahuje približne až do 2/3 výšky podvalu. Aby sa počas dopravy, pri skladovaní alebo na stavenisku zabránilo nazhromaždeniu vody v príchytke, príchytka sa vnútri vybavuje vrstvou tuku (napr. Ferrocote) alebo tesniacimi prvkami. Obidve opatrenia vyžadujú dodatočné pracovné a materiálové náklady. Napriek tomu sa však podľa skúseností nedosiahne absolútna tesnosť príchytky. Voda, ktorá vnikne do príchytky, môže pri zamrznutí spôsobiť vznik trhlín alebo dokonca prasknutie podvalu.Plastic clips intended to anchor rail fastening screws in concrete sleepers are known. Fasteners made of prestressed concrete, produced by a continuous working process (for example, in "Abetong"), have a closed shape. The clip is poured into the concrete and reaches up to approximately 2/3 of the sleeper height. In order to prevent water from accumulating in the clip during transport, during storage or on site, the clip is fitted with a layer of grease (eg Ferrocote) or sealing elements inside. Both measures require additional labor and material costs. Nevertheless, according to experience, the absolute tightness of the clip is not achieved. Water that enters the clip can cause cracks or even burnout when frozen.
Ďalej je známa aj otvorená príchytka, ktorá sa používa na jednotlivé upínané betónové podvaly. Príchytka je v oblasti dna otvorená a do betónu sa zalieva. Predtým sa ale musí otvor v dne príchytky uzavrieť, aby sa zabránilo vniknutiu betónu.Furthermore, an open clip is known which is used for individual clamped concrete sleepers. The clip is open in the bottom area and is poured into the concrete. Before that, the opening in the bottom of the clip must be closed in order to prevent concrete from entering.
Po vniknutí betónu sa uzáver (debnenie) zložitým spôsobom vyberá alebo dokonca vyráža. Na výrobu podvalov z predpätého betónu priebežným pracovným postupom je tento druh príchytiek nevhodný.After concrete penetration, the shuttering (formwork) is difficult to remove or even punch. This type of fasteners is unsuitable for the production of prestressed concrete sleepers by a continuous process.
Podstata vynálezuSUMMARY OF THE INVENTION
Úloha vynálezu spočíva vo vytvorení príchytky, ktorá je vhodná na výrobu podvalov z predpätého betónu priebežným pracovným postupom. Táto úloha bola vyriešená príchytkou do podvalov z predpätého betónu, ktorá je podľa vynálezu na spodnom konci vnútorného závitu vytvoreného vo valcovitom telese vybavená čiapočkou, ktorej vonkajší povrch je tvorený zrezaným kužeľom, pričom jej širšia základňa nadväzuje na valcovité teleso a jej užšia základňa je uzavretá dnom.SUMMARY OF THE INVENTION The object of the invention is to provide a clip which is suitable for the production of prestressed concrete sleepers by a continuous process. This object was solved by a prestressed concrete fastener which according to the invention is provided at the lower end of a female thread formed in a cylindrical body with a cap whose outer surface is formed by a truncated cone, its wider base adjoining the cylindrical body and .
Výhodné vyhotovenie spočíva v tom, že vnútorný povrch čiapočky je rozdelený na horný valcovitý povrch, ktorý nadväzuje na vnútorný závit, a na spodný kužeľovitý povrch, ktorého kužeľovitosť v podstate zodpovedá kužeľovitosti vonkajšieho povrchu čiapočky.A preferred embodiment consists in that the inner surface of the cap is divided into an upper cylindrical surface which is connected to the internal thread and a lower conical surface whose conicity substantially corresponds to the conicity of the outer surface of the cap.
Ďalšie výhodné vyhotovenie podľa vynálezu spočíva v tom, že dno je upravené na ľahké prerazenie alebo prevŕtanie.A further advantageous embodiment of the invention is that the bottom is adapted to be easily pierced or drilled.
Výhodou príchytky podľa vynálezu oproti príchytkám podľa súčasného stavu techniky je, že v príchytke sa prakticky nemôže nazhromaždiť voda.An advantage of the clip according to the invention over the clips of the prior art is that it is practically impossible to collect water in the clip.
Po dohotovení podvalov z predpätého betónu sa totiž dno príchytky prerazí alebo prevŕta a preto sa v nej voda už nemôže zhromaždiť. Príchytka je dimenzovaná tak, že prechádza celým podvalom. Dno príchytky zabraňuje tomu, aby pri betónovaní vnikol do nej betón. Kužeľová čiapočka je ďalej výhodná tým, že z hľadiska závitu zostanú zachované silové pomery ako pri krátkej príchytke. To znamená, že sa nezmenia silové pomery overené v praxi pri krátkej príchytke.After the sleepers have been made of prestressed concrete, the bottom of the clip is pierced or tipped over and therefore water can no longer accumulate there. The clip is dimensioned so that it passes through the entire sleeper. The bottom of the clip prevents concrete from entering the concrete during concreting. The tapered cap is further advantageous in that the force ratios of the short clip are retained in terms of thread. This means that the force ratios verified in practice with a short clip will not change.
Príklad uskutočnenia vynálezuDETAILED DESCRIPTION OF THE INVENTION
Príchytka 1 do podvalov z predpätého betónu pozostáva z telesa 6, koruny 2, ktorá je upravená na jeho hornej časti, a vnútorného závitu 3, ktorý prebieha od koruny 2 až na úroveň spodného konca valcovitého vonkajšieho prierezu telesa 6. Vonkajší povrch valcovitého telesa 6 je vybavený rebrovaním.The prestressed concrete fastener 1 consists of a body 6, a crown 2 which is provided on its upper part and an internal thread 3 extending from the crown 2 up to the lower end of the cylindrical outer cross-section of the body 6. The outer surface of the cylindrical body 6 is equipped with ribbing.
Pod vnútorným závitom 3, to znamená pod valcovitým telesom 6, je upravená čiapočka 4, ktorá je s telesom 6 vytvorená ako jeden kus. Vonkajší povrch čiapočky 4 je vytvorený ako zrezaný kužeľ, ktorý svojou širšou základňou nadväzuje na teleso 6. Vnútorný povrch čiapočky 4 je rozdelený na horný valcovitý, ktorý nadväzuje na vnútorný závit 3, a na spodný kužeľovitý, ktorého kužeľovitosť zodpovedá kužeľovitosti vonkajšieho povrchu čiapočky 4, pričom pomer výšok oboch povrchov je približne 1 : 1.Under the internal thread 3, i.e. below the cylindrical body 6, there is provided a cap 4 which is formed in one piece with the body 6. The outer surface of the cap 4 is formed as a truncated cone, which by its wider base adjoins the body 6. The inner surface of the cap 4 is divided into an upper cylindrical which adjoins the female thread 3 and a lower conical whose conicity corresponds to the conicity of the outer surface of the cap. wherein the height ratio of both surfaces is approximately 1: 1.
Čiapočka 4 je vo svojej spodnej časti odvrátenej od vnútorného závitu 3 vybavená dnom 5, ktoré tesne uzaviera príchytku 1 a je opäť s čiapočkou 4 i s telesom 6 vytvorené ako jeden kus.The cap 4 is provided in its lower part facing away from the female thread 3 with a bottom 5 which tightly closes the clip 1 and is again formed in one piece with the cap 4 and the body 6.
Dno 5 príchytky 1 je vytvorené tak, že ho možno ľahko prevŕtať alebo preraziť, to znamená z vhodného materiálu a napríklad je tenkostenné. Dno 5 však musí byť zároveň vytvorené tak, aby odolalo tlaku, ktorý je naň vyvodzovaný počas betónovania.The bottom 5 of the clip 1 is designed so that it can be easily drilled or pierced, i.e. of a suitable material and, for example, it is thin-walled. At the same time, the bottom 5 must be designed to withstand the pressure exerted on it during concreting.
Celá príchytka je výhodne vyrobená z plastu, napríklad z termoplastu.The entire clip is preferably made of plastic, for example thermoplastic.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT128391A AT397290B (en) | 1991-06-27 | 1991-06-27 | Dowels for prestressed concrete sleepers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SK147592A3 SK147592A3 (en) | 1994-05-11 |
| SK280759B6 true SK280759B6 (en) | 2000-07-11 |
Family
ID=3510542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK1475-92A SK280759B6 (en) | 1991-06-27 | 1992-05-15 | Dowel for prestressed concrete sleepers |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT397290B (en) |
| CH (1) | CH684757A5 (en) |
| CZ (1) | CZ281478B6 (en) |
| DE (1) | DE9201839U1 (en) |
| FR (1) | FR2678295B3 (en) |
| HU (1) | HU213148B (en) |
| SK (1) | SK280759B6 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9208989U1 (en) * | 1992-07-04 | 1992-09-10 | Schwellenwerk Stewing Gmbh & Co., 3394 Langelsheim, De | |
| DE29613468U1 (en) * | 1996-07-24 | 1996-09-19 | Wirthwein Gmbh & Co | Concrete cap nut made of plastic |
| ES2283235B1 (en) | 2007-04-04 | 2009-03-01 | Mondragon Soluciones, S.L.U. | SHEATH FOR RAIL RAIL FASTENINGS, PROCEDURE FOR REPLACING SUCH SHEATH ON A CROSS AND TOOLS TO EXECUTE SUCH PROCEDURE. |
| US20130117997A1 (en) * | 2011-11-11 | 2013-05-16 | Bell Helicopter Textron Inc. | System and Method for Installing a Fastener Rod |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1897950U (en) * | 1964-03-04 | 1964-08-06 | Paul Mueller Holz Und Kunststo | PLASTIC DOWELS FOR FASTENING RAILS ON CONCRETE SLEEPERS. |
| DE1896691U (en) * | 1964-05-02 | 1964-07-16 | Paul Mueller Holz Und Kunststo | DOWELS, IN PARTICULAR FOR FASTENING RAILWAY SLEEPERS. |
| AT267828B (en) * | 1965-10-27 | 1969-01-10 | Langensiepen Kg M | Fiber anchor |
| DE2254602C2 (en) * | 1972-11-08 | 1974-12-05 | Tox-Duebel-Werk Richard W. Heckhausen Kg, 7762 Ludwigshafen | Expansion anchor |
| FR2315568A1 (en) * | 1975-06-25 | 1977-01-21 | Vape Sa Ets | SCREW FIXING DEVICE IN A CONSTRUCTION ELEMENT IN AGGLOMERATED MATERIAL |
| DE3039931C2 (en) * | 1980-10-23 | 1982-09-16 | Dyckerhoff & Widmann AG, 8000 München | Dowels for fastening rails on prestressed concrete sleepers |
| DE8436722U1 (en) * | 1984-12-14 | 1985-05-23 | Selter, Marlen, 5952 Attendorn | Fixing dowels |
-
1991
- 1991-06-27 AT AT128391A patent/AT397290B/en not_active IP Right Cessation
-
1992
- 1992-02-13 DE DE9201839U patent/DE9201839U1/de not_active Expired - Lifetime
- 1992-03-16 CH CH82892A patent/CH684757A5/en not_active IP Right Cessation
- 1992-05-15 SK SK1475-92A patent/SK280759B6/en unknown
- 1992-05-15 CZ CS921475A patent/CZ281478B6/en not_active IP Right Cessation
- 1992-06-23 FR FR9207653A patent/FR2678295B3/en not_active Expired - Lifetime
- 1992-06-26 HU HU9202152A patent/HU213148B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SK147592A3 (en) | 1994-05-11 |
| FR2678295A3 (en) | 1992-12-31 |
| HU213148B (en) | 1997-02-28 |
| CH684757A5 (en) | 1994-12-15 |
| HUT62672A (en) | 1993-05-28 |
| CZ147592A3 (en) | 1993-01-13 |
| HU9202152D0 (en) | 1992-10-28 |
| AT397290B (en) | 1994-03-25 |
| CZ281478B6 (en) | 1996-10-16 |
| DE9201839U1 (en) | 1992-04-09 |
| FR2678295B3 (en) | 1993-06-04 |
| ATA128391A (en) | 1993-07-15 |
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