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EP1657361B1 - Coeur pour aiguillages - Google Patents

Coeur pour aiguillages Download PDF

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Publication number
EP1657361B1
EP1657361B1 EP20050024261 EP05024261A EP1657361B1 EP 1657361 B1 EP1657361 B1 EP 1657361B1 EP 20050024261 EP20050024261 EP 20050024261 EP 05024261 A EP05024261 A EP 05024261A EP 1657361 B1 EP1657361 B1 EP 1657361B1
Authority
EP
European Patent Office
Prior art keywords
frog
insert
basic
frog body
heart
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.)
Ceased
Application number
EP20050024261
Other languages
German (de)
English (en)
Other versions
EP1657361A3 (fr
EP1657361A2 (fr
Inventor
Heinz Brackmann
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.)
Schreck Mieves GmbH
Original Assignee
Schreck Mieves GmbH
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 Schreck Mieves GmbH filed Critical Schreck Mieves GmbH
Publication of EP1657361A2 publication Critical patent/EP1657361A2/fr
Publication of EP1657361A3 publication Critical patent/EP1657361A3/fr
Application granted granted Critical
Publication of EP1657361B1 publication Critical patent/EP1657361B1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/12—Fixed frogs made of one part or composite

Definitions

  • the invention relates to a frog for switches, according to the preamble of claim 1.
  • a disadvantage of the known heart is that initially two different types of fastening systems for mounting the insert are provided on the heart piece main body, which is expensive.
  • the problem is, moreover, that when driving over the insert a kind of rocker effect and thus a lifting of the insert can occur.
  • the disadvantage is that the forces occurring when driving over the insert due to the rocker effect act directly on the screw and also on the wedge joints. This can result in multiple crossing of the heart to loosen the screw and the spline connection and in the worst case even to a breakage of the screw.
  • From the DE 33 39 442 C1 It is known to provide an insert made of a wear-resistant material such as manganese steel in the most vulnerable area of the heart. Since the insert made of wear-resistant material is usually not weldable to the frog body, it is necessary to provide another type of attachment. From the DE 33 39 442 C1 It is known to shrunk the insert into a corresponding recess in the heart piece main body or to screw the insert with the heart piece main body. From the DE 103 11 113 A1 it is known to clamp the insert via wedge elements. The wedge elements are in turn bolted to the core body.
  • the object of the present invention is to provide a heart of the type mentioned above in which the insert can be connected in a simple manner to the frog base body and in which the risk of unintentional loosening of the insert is reduced.
  • the claimed in claim 1 solution is provided.
  • the attachment of the insert is carried out neither by a direct screwing nor by acting on the insert screwed wedge elements.
  • at least one clip-like fastening element is provided, which engages laterally into the insert and / or into the centerpiece main body and / or engages over the insert and / or engages under the centerpiece main body and is screwed to the frog base body.
  • corresponding engagement portions are provided on the side of the insert and the heart piece main body, engage in the corresponding engaging leg of the fastener.
  • This type of attachment ensures that the forces occurring when driving over the insert due to the rocker effect are introduced via the mounting bracket directly into the heart piece main body, without the forces acting on the fastener of the fastener. With appropriate design of the fastener there is no risk of loosening or breakage, as is the case with the screw in the prior art.
  • the insert is releasably secured only on one side via at least one fastening element, while the insert is then attached to the other side by positive engagement on the heart piece main body.
  • the insert is releasably secured on both sides in each case via at least one fastening element.
  • the screw can have a hammer head screw, which is then inserted into a corresponding slot-shaped receptacle, so that the screw shaft protrudes outward.
  • the slot-shaped receptacle is adapted to the hammer head of the screw.
  • the screw has a transversely guided through the heart piece long screw. The long screw is thus inserted on one side, passed through the heart and then serves to screw the fastener. In this connection with the long screw there are also two application possibilities. On the one hand, a bore can be provided in the heart piece main body.
  • an oblique joint is provided at the transition from the insert to the core body in the direction of travel.
  • the edge at the transition from the frog main body to the insert when driving over virtually does not work out.
  • the oblique transition can be realized in two ways. On the one hand, the transition on the insert can be tapered in a V-shape. On the other hand, however, a V-shaped incision on the insert is possible. It is understood that the heart piece main body is formed on the recess provided for use corresponding.
  • At least one engagement opening for attaching a tool is provided on the insert and / or on the centerpiece body adjacent to the insert. About the engagement opening of the insert can then be levered out of the recess.
  • the insert is located adjacent to the frog point. Since the insert is generally intended to cover only the region of the frog that is most prone to wear, the base of the insert is significantly smaller than the base of the frog body. Alternatively, it is also possible in certain applications, however, that the insert extends over the entire length of the frog body, it being otherwise possible for the insert to rest on the entire top side of the frog body.
  • the heart piece main body may be formed as a one-piece, in particular milled block or consist of several parts which are firmly connected to each other.
  • a centerpiece 1 for points is shown in each case.
  • heart pieces of the type according to the invention can be used both for grooved rail and for Vignole rail turnouts.
  • the heart 1 has a heart base body 2 and a replaceable insert 3 made of a wear-resistant material that is placed on the core piece body 2 and can be detachably fastened thereto.
  • a replaceable insert 3 made of a wear-resistant material that is placed on the core piece body 2 and can be detachably fastened thereto.
  • For use 3 is at the top of the heart piece main body 2 a the dimensions the insert 3 corresponding recess 4 is provided, in which the insert 3 is arranged substantially free of play.
  • the insert 3 itself consists of non-weldable manganese steel. Not shown are in the rest belonging to the heart 1, welded to the core piece body 2 connecting rails.
  • the insert 3 comprises the region 5 of highest wear following the frog tip 6.
  • a plurality of clip-like fastening elements 7 are provided on both sides 10, 11 of the frog 1.
  • a releasable attachment via a plurality of fasteners 7 is provided only on one side 10.
  • the number of fasteners 7 ultimately depends on the length of the insert 3.
  • a positive connection between the heart piece body 2 and the insert 3 is provided.
  • the region 12 of the heart piece main body 2 engages over the side surface 13 of the insert 3.
  • the engagement sections 8, 9 are in each case depressions or recesses on the one hand in the heart piece main body 2 and on the other hand in the insert 3. In the respective recess, engagement legs 14 of the fastening element 7 engage in each case.
  • the engaging legs 14 have approximately a horizontal orientation.
  • the two outer engagement legs 14 are connected to each other via a central connecting leg 15.
  • the engagement portion is provided on the upper side of the insert 3 and the underside of the heart piece main body 2.
  • the fastener 7 fully encloses the core body 2 and the insert 3.
  • the screw for a fastener 7 each have a hammer head screw 16, the hammer head is inserted into a corresponding slot-shaped receptacle 17 in the heart piece main body 2.
  • the receptacle 17 is adapted to the shape of the hammer head of the hammer head screw 16.
  • the same fastening elements 7 are provided, which are fastened in each case via hammer head screws 16 to the heart piece main body 2.
  • the engagement legs 14 and the engagement portions 9, 10 each have corresponding ramps such that the engagement legs 14 are narrowed toward the outer end, while the engagement portions 8, 9 expand outwardly.
  • FIG. 9 an embodiment is shown in which the receptacle 17 is aligned parallel to the direction of travel R. This has the advantage that over the length of the insert 3 any number of fasteners 7 can be provided. Otherwise, the in Fig. 9 illustrated fastening element 7 a deviating from the fastening elements 7 described above shape. While in the Fig. 1 to 8 shown fasteners are mirror-symmetrical, this is in the in Fig. 9 embodiment shown not the case.
  • the lower engaging leg 14 is here on the ground, which is not the case with the other embodiments. Moreover, the bevels described above are more pronounced.
  • the screw for either or for two fasteners 7 each have a long screw 18 which is passed transversely to the direction R through the center piece 1.
  • a bore 19 in the heart piece main body 2 for the long screw 18 is provided.
  • the transition from the insert 3 to the center piece body 2 in the direction of travel R is designed as an oblique stroke.
  • the oblique joint runs approximately at an angle of 45 ° to the respective groove.
  • the insert 3 is tapered at its two ends V-shaped, while the insert 3 in the in 3 and 4 illustrated embodiment is cut V-shaped at its two ends.
  • the recess 4 is adapted to the shape of the insert 3 such that the insert 3 is arranged without play in the recess 4 and is positively fixed in the rest in the horizontal plane.
  • the insert 3 is trapezoidal in the outwardly widening trapezoidal recess 4 is used.
  • This embodiment of the recess 4 of the insert 3 makes it possible to push the insert 3 transversely to the direction of travel R out of the recess 4 and, moreover, to insert it laterally from the side.
  • engagement openings 22 for attaching a tool are shown on the core piece body 2 immediately adjacent to the insert. It is understood that it is also possible in principle to provide the engagement openings 22 on the insert 3 itself.
  • the embodiment according to the FIGS. 7 and 8 differs from the other embodiments in that the insert 3 extends over the entire heart base body 2, so over the entire surface rests on the entire top of the heart piece main body 2. In the other embodiments, the insert 3 is considerably smaller than the heart piece main body 2.
  • the fastening element 7 is screwed in each case via a fastening screw 25 with the heart piece main body 2.
  • a threaded bore 26 is introduced directly into the heart piece main body, while in the embodiment according to Fig. 13 a threaded bush 27 is provided, which is introduced into the heart piece main body 2.
  • the fasteners are in inspection boxes 23, which are closed on the top side with a lid. It is understood that it is not necessary in operations in the region of the open track body to provide such revision boxes 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Prostheses (AREA)

Claims (13)

  1. Coeur (1) pour aiguillages, comprenant un corps de base de coeur (2) et un insert (3) remplaçable posé sur le corps de base de coeur (2) et pouvant être fixé de manière détachable au corps de base de coeur (2), au moins un élément de fixation (7) en forme de pince étant prévu à chaque fois sur l'insert (3) et sur le corps de base de coeur (2) pour venir en prise latéralement dans ou sur au moins une portion d'engagement (8, 9), et les portions d'engagement (8, 9) étant prévues sur au moins un côté de l'insert (3) et du corps de base de coeur (2), caractérisé en ce que l'élément de fixation (7) est vissé au corps de base de coeur (2) sur un côté du coeur (1) prévu transversalement à la direction d'avance (R) sans que l'insert (3) soit vissé directement au corps de base de coeur (2).
  2. Coeur selon la revendication 1, caractérisé en ce que la portion d'engagement (8, 9) est formée par un évidement (4) dans la surface latérale du corps de base de coeur (2) ou de l'insert (3) et/ou est prévue sur le côté supérieur de l'insert (3) ou le côté inférieur du corps de base de coeur (2).
  3. Coeur selon la revendication 1 ou 2, caractérisé en ce que l'insert (3) est fixé des deux côtés de manière détachable à chaque fois par le biais d'au moins un élément de fixation (7).
  4. Coeur selon la revendication 1 ou 2, caractérisé en ce que l'insert (3) est fixé seulement d'un côté de manière détachable par le biais d'au moins un élément de fixation (7) et en ce que l'insert (3) est fixé de l'autre côté par engagement positif au corps de base de coeur (2).
  5. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le vissage présente une vis pour rainure en T (16) pouvant être insérée dans un logement (17) en forme de fente dans le corps de base de coeur (2).
  6. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le vissage présente au moins un boulon d'ancrage (18) guidé transversalement à travers le coeur (1).
  7. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on prévoit pour le boulon d'ancrage (18) un alésage (19) dans le corps de base de coeur (2) ou des rainures correspondantes (20, 21) sur le côté supérieur du corps de base de coeur (2) et le côté inférieur de l'insert (3).
  8. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on prévoit une fente oblique au niveau de la transition de l'insert (3) au corps de base de coeur (2), dans la direction d'avance (R).
  9. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que la transition de l'insert (3) au corps de base de coeur (2) est découpée dans la direction d'avance (R) en forme de V ou en se terminant en forme de V.
  10. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'insert (3) est inséré dans un évidement s'élargissant en forme trapézoïdale vers l'extérieur dans le corps de base de coeur (2).
  11. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on prévoit sur l'insert (3) et/ou sur le corps de base de coeur (2), à côté de l'insert (3), au moins une ouverture d'engagement (22) pour appliquer un outil.
  12. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'insert (3) s'étend sur toute la longueur du corps de base de coeur (2) et en ce que de préférence l'insert (3) repose sur tout le côté supérieur du corps de base de coeur (2).
  13. Coeur selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de base de coeur (2) est réalisé sous forme de bloc d'une seule pièce ou sous forme de composant en plusieurs pièces.
EP20050024261 2004-11-10 2005-11-08 Coeur pour aiguillages Ceased EP1657361B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004054435 2004-11-10
DE102004060419A DE102004060419B3 (de) 2004-11-10 2004-12-14 Herzstück für Weichen

Publications (3)

Publication Number Publication Date
EP1657361A2 EP1657361A2 (fr) 2006-05-17
EP1657361A3 EP1657361A3 (fr) 2006-11-08
EP1657361B1 true EP1657361B1 (fr) 2008-10-01

Family

ID=35510999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050024261 Ceased EP1657361B1 (fr) 2004-11-10 2005-11-08 Coeur pour aiguillages

Country Status (2)

Country Link
EP (1) EP1657361B1 (fr)
DE (2) DE102004060419B3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106385A1 (de) * 2011-07-04 2013-01-10 Thyssenkrupp Gft Gleistechnik Gmbh Weichenanlagenbauteil
CN114808560A (zh) * 2022-02-28 2022-07-29 中铁宝桥集团有限公司 一种局部可更换辙叉及更换方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1461701A (en) * 1923-04-18 1923-07-10 William Wharton Jr & Company I Frog or crossing structure
DE3339442C1 (de) * 1983-10-29 1985-05-02 Schreck-Mieves GmbH, 4600 Dortmund Herzstueck fuer Weichen oder Kreuzungen und Verfahren zur Herstellung eines solchen Herzstueckes
DK1138830T3 (da) * 2000-03-30 2005-08-29 Butzbacher Weichenbau Gmbh Enkeltkrydsning til rilleskinner samt fremgangsmåde til fremstilling af en sådan
DE10311113A1 (de) * 2003-03-12 2004-09-23 Bwg Gmbh & Co. Kg Rillenschienenherzstück

Also Published As

Publication number Publication date
EP1657361A3 (fr) 2006-11-08
DE502005005516D1 (de) 2008-11-13
EP1657361A2 (fr) 2006-05-17
DE102004060419B3 (de) 2006-05-24

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