EP2684758B1 - Clamp lock to securely hold a blade at a distance - Google Patents

Clamp lock to securely hold a blade at a distance Download PDF

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Publication number
EP2684758B1
EP2684758B1 EP12176451.8A EP12176451A EP2684758B1 EP 2684758 B1 EP2684758 B1 EP 2684758B1 EP 12176451 A EP12176451 A EP 12176451A EP 2684758 B1 EP2684758 B1 EP 2684758B1
Authority
EP
European Patent Office
Prior art keywords
pawl
closure
lock
blade
latch
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.)
Active
Application number
EP12176451.8A
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German (de)
French (fr)
Other versions
EP2684758A1 (en
Inventor
Jon Felix
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.)
Siemens Schweiz AG
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Siemens Schweiz AG
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Filing date
Publication date
Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Priority to EP12176451.8A priority Critical patent/EP2684758B1/en
Publication of EP2684758A1 publication Critical patent/EP2684758A1/en
Application granted granted Critical
Publication of EP2684758B1 publication Critical patent/EP2684758B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points

Definitions

  • the present invention relates to a switch adjustment device, in particular a latch lock, with a locking pawl pivotably mounted on a lock bearing and a slide rod.
  • the pawl of the latch is pivotally held on a lock bearing, which is attached to the switch blade.
  • the pawl closure has the task to hold the adjacent and remote switch blade in a geometrically defined position or to lock mechanically.
  • the type of mechanical locking is advantageously positive fit. Due to the safety relevance of the described functionality, fallback levels are generally to be realized, which guarantee a minimum degree of security in the event of a fault.
  • the present invention has for its object to provide simple and reliable version for realizing such a fallback level. In detail, it is about the safe holding of the distal switch blade (remote switch blade position).
  • a latch closure with a closure pawl pivotally attached to a closure bearing and a pusher bar for locking and unlocking the pawl both for the applied switch ply position and for the remote switch ply position
  • the pusher rod has a first bearing side arranged cam and a second bearing remote at the end of the closure pawl arranged cam for blocking the closure pawl in the remote switch blade position.
  • FIG. 1 shows a schematic representation of a side view of a latch closure 2 with closure carriers 4 and 6 closures according to the prior art.
  • each a pawl 8 is pivotally supported.
  • the latch closure is moved by means of a slide rod 10 (or also called cam rod) in one or the other direction.
  • a slide rod 10 or also called cam rod
  • the lock carrier 4 is clamped to a rail foot 12 of a railroad rail 14.
  • the slide rod 10 is slidably guided.
  • the slide rod 10 is thereby in both directions of an arrow 16 for adjusting both switch points 18 and the associated locking pawl 8th used.
  • the closure bearing 6 is designed so that it is attached on the one hand to the switch blade 18 and on the other hand, the closure pawl 10th carriesterrorism.
  • the remote switch blade 18 (dotted line) with a mounted on the slide rod cam 20, which is present on the lower part of the lock pawl 8 bearing side positively held.
  • tongue rolling devices which easily lift the switch blades 18 when switching from its sliding saddle, the portion of the positive engagement of the locking pawl 8 and said cam 20 is always lower.
  • the occlusion pawl 8 could (in accumulation with other errors) skip the cam 20.
  • the remote switch blade 18 would then no longer be stable in position.
  • FIG. 3 now shows a latch closure 2 according to the invention, in which also this aforementioned problem can be safely avoided.
  • An additional on the bearing side opposite end of the pawl 8 arranged on the pusher rod 10 cam 22 limits the path of the remote switch tongue 18. So in case of failure, the pawl 8 skip the first cam 20, the movement of the remote switch blade 18 by the additional cam 22nd mechanically limited.
  • the lifting by a tongue rolling device can here but no longer affect the side facing away from the bearing side of the locking pawl 8, because the closure pawl here rests by gravity and due to the pivotal mounting directly on the slide rod 10.
  • the closure pawl 8 can not, so to speak, dodge "upwards" at this point since, in addition, the rail base 12 is mounted directly above the pawl head.
  • the inventive value of the present solutions lies in the absolutely simple realizability of an efficiently acting fallback level. With little effort, a higher level of security is achieved. Both the design and production engineering effort to implement the invention is limited to a modification of the slide rod 10 and thus relatively low. An implementation and retrofitting of existing latch locks is thus possible by replacing the slide rod 10 in a relatively short time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Lock And Its Accessories (AREA)

Description

Die vorliegende Erfindung betrifft eine Weichenverstelleinrichtung, insbesondere einen Klinkenverschluss, mit einer an einem Verschlusslager verschwenkbar befestigten Verschlussklinke und einer Schieberstange.The present invention relates to a switch adjustment device, in particular a latch lock, with a locking pawl pivotably mounted on a lock bearing and a slide rod.

Zur Umstellung von Weichen ist eine Vielzahl unterschiedlicher Verstellvorrichtungen bekannt. Häufig werden Klammerspitzen- oder Klinkenverschlüsse eingesetzt. Letztgenannter Klinkenverschluss ist aus der europäischen Patentanmeldung EP 0 624 508 A1 bekannt. Bei all diesen Weichenverschlüssen entsteht an den Reibkontaktflächen der beweglichen und der ortsfesten Komponenten, die die Verstellung einer Weiche herbeiführen bzw. bei dem Verstellvorgang mitbewegt werden, nach einer längeren Betriebsdauer ein von der Anzahl der absolvierten Umstellzyklen der Weiche abhängender Verschleiss zwischen den Reibpartnern. Eine Besonderheit besteht hierbei bei den Klinkenverschlüssen, bei denen der Verschlussträger aus einer Aluminiumbronze hergestellt ist und die meist aus unlegiertem Baustahl bestehende Schieber- oder Nockenstange mit der Aluminiumbronze ein Reibpaar bildet. Bei diesem Reibpaar sind die guten Gleit- und Notlaufeigenschaften der Aluminiumbronze stark erwünscht, teilweise entsteht aber trotzdem ein relativ hoher Verschleiss. Bei fortgeschrittenem Verschleiss kann hierdurch sogar die Weichenzungenwanderung behindert werden. Neben der Bewegung der Schieberstange in einer Richtung senkrecht zum Gleiskörper findet auch eine temperaturbedingte Zungenwanderung in Richtung des Gleises statt. Ist die Nockenstange bereits stark durch die Translationsbewegung senkrecht zum Gleis in den Träger eingearbeitet, kann sich der Klinkenverschluss durch die Zungenwanderung verklemmen.For the conversion of switches a variety of different adjustment is known. Often, staple point or latch locks are used. The latter pawl closure is known from European patent application EP 0 624 508 A1 known. In all these switch closures arises at the Reibkontaktflächen the movable and the stationary components that bring about the adjustment of a switch or moved in the adjustment, after a longer period of operation depending on the number of completed Umstellzyklen the switch wear between the Reibpartnern. A special feature here is in the latch locks, in which the lock carrier is made of an aluminum bronze and usually consisting of unalloyed mild steel slide or cam bar forms a friction pair with the aluminum bronze. In this pair of friction, the good sliding and emergency running properties of aluminum bronze are strongly desired, but in part, but still creates a relatively high wear. With advanced wear this can even hinder the switch blade migration. In addition to the movement of the slide rod in a direction perpendicular to the track body also takes place a temperature-induced tongue migration in the direction of the track. If the cam rod is already heavily worked into the carrier by the translational movement perpendicular to the track, the latch can become jammed due to the tongue movement.

Die Klinke des Klinkenverschluss ist verschwenkbar an einem Verschlusslager gehalten, das an der Weichenzunge befestigt ist. Der Klinkenverschluss hat die Aufgabe die anliegende sowie abliegende Weichenzunge in einer geometrisch exakt definierten Position festzuhalten bzw. mechanisch zu verriegeln. Die Art der mechanischen Verriegelung erfolgt mit Vorteil formschlüssig. Aufgrund der Sicherheitsrelevanz der beschriebenen Funktionalität sind in der Regel Rückfallebenen zu realisieren, welche im Fehlerfall ein Mindestmass an Sicherheit gewährleisten.The pawl of the latch is pivotally held on a lock bearing, which is attached to the switch blade. The pawl closure has the task to hold the adjacent and remote switch blade in a geometrically defined position or to lock mechanically. The type of mechanical locking is advantageously positive fit. Due to the safety relevance of the described functionality, fallback levels are generally to be realized, which guarantee a minimum degree of security in the event of a fault.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einfache und funktionssichere Variante zur Realisierung einer solchen Rückfallebene anzugeben. Im Detail geht es um das sichere Halten der abliegenden Weichenzunge (abliegende Weichenzungenlage).The present invention has for its object to provide simple and reliable version for realizing such a fallback level. In detail, it is about the safe holding of the distal switch blade (remote switch blade position).

Diese Aufgabe wird erfindungsgemäss durch einen Klinkenverschluss mit einer an einem Verschlusslager verschwenkbar befestigten Verschlussklinke und einer Schieberstange zum Verriegeln und Entsperren der Verschlussklinke sowohl für die anliegende Weichenzungenlage als auch für die abliegende Weichenzungenlage gelöst,
wobei die Schieberstange einen ersten lagerseitig angeordneten Nocken und einen zweiten lagerfern am Ende der Verschlussklinke angeordneten Nocken zur Blockierung der Verschlussklinke in abliegender Weichenzungenlage aufweist.This object is achieved according to the invention by a latch closure with a closure pawl pivotally attached to a closure bearing and a pusher bar for locking and unlocking the pawl both for the applied switch ply position and for the remote switch ply position,
wherein the pusher rod has a first bearing side arranged cam and a second bearing remote at the end of the closure pawl arranged cam for blocking the closure pawl in the remote switch blade position.

Auf diese Weise ergibt sich eine konstruktiv einfach zu realisierende Modifizierung der Schieberstange, die die Verschlussklinke auch dann in ihrer Stellposition hält, wenn die Weichenzunge aufgrund einer Rollenlagerung entgegen der üblichen Lagerung auf einem Weichengleitstuhl relativ zur Schieberstange erheblich höher geführt ist.In this way, a structurally simple to implement modification of the slide rod, which also holds the lock pawl in its parking position, when the switch blade is guided due to a roller bearing contrary to the usual storage on a soft sliding relative to the slide rod considerably higher.

Weitere vorteilhafte Ausgestaltungen sind in den übrigen Unteransprüchen ausgeführt.Further advantageous embodiments are embodied in the remaining subclaims.

Vorteilhafte Ausgestaltungen der vorliegenden Erfindung werden anhand einer Zeichnung näher erläutert. Dabei zeigen:

Figur 1
in schematischer Darstellung eine seitliche Ansicht eines Klinkenverschlusses mit Verschlussträgern und Verschlusslagern gemäss dem Stand der Technik;
Figur 2
in schematischer Darstellung eine Variante des Klinkenverschlusses gemäss Figur 1 mit abliegender Weichenzunge gemäss dem Stand der Technik; und
Figur 3
in schematischer Darstellung eine weitere Variante des Klinkenverschlusses gemäss Figur 1 mit abliegender Weichenzunge.
Advantageous embodiments of the present invention will be explained in more detail with reference to a drawing. Showing:
FIG. 1
a schematic view of a side view of a latch closure with lock carriers and lock bearings according to the prior art;
FIG. 2
in a schematic representation of a variant of the latch closure according to FIG. 1 with remote switch blade according to the prior art; and
FIG. 3
in a schematic representation of a further variant of the latch closure according to FIG. 1 with remote switch tongue.

Die Figur 1 zeigt in schematischer Darstellung eine seitliche Ansicht eines Klinkenverschlusses 2 mit Verschlussträgern 4 und Verschlusslagern 6 gemäss dem Stand der Technik. In den Verschlusslagern 6 ist jeweils eine Verschlussklinke 8 verschwenkbar gehalten. Der Klinkenverschluss wird mittels einer Schieberstange 10 (oder auch Nockenstange genannt) in die eine oder andere Richtung bewegt. Bezüglich der Ausgestaltung eines Klinkenverschlusses wird auf die europäische Patentanmeldung EP 0 624 508 A1 verwiesen, die hiermit als komplett eingeführt gilt.The FIG. 1 shows a schematic representation of a side view of a latch closure 2 with closure carriers 4 and 6 closures according to the prior art. In the locking bearings 6 each a pawl 8 is pivotally supported. The latch closure is moved by means of a slide rod 10 (or also called cam rod) in one or the other direction. With regard to the design of a latch closure is based on the European patent application EP 0 624 508 A1 referenced, which is hereby considered completely imported.

In der gezeigten Darstellung ist linksseitig eine anliegende Weichenzungenlage und rechtsseitig eine abliegende Weichenzungenlage ersichtlich.In the illustration shown on the left side an adjacent switch blade position and on the right side a remote switch blade position can be seen.

Wie in der Figur 1 gezeigt, wird der Verschlussträger 4 an einem Schienenfuss 12 einer Eisenbahnschiene 14 verspannt. Im Verschlussträger 2 wird die Schieberstange 10 gleitend aufliegend geführt. Die Schieberstange 10 wird dabei in beide Richtungen eines Pfeils 16 zur Verstellung beider Weichenzungen 18 und der zugehörigen Verschlussklinke 8 verwendet. Das Verschlusslager 6 ist dabei so ausgeführt, dass es einerseits an der Weichenzunge 18 befestigt ist und andererseits die Verschlussklinke 10
verschwankbar trägt.Like in the FIG. 1 Shown, the lock carrier 4 is clamped to a rail foot 12 of a railroad rail 14. In the lock carrier 2, the slide rod 10 is slidably guided. The slide rod 10 is thereby in both directions of an arrow 16 for adjusting both switch points 18 and the associated locking pawl 8th used. The closure bearing 6 is designed so that it is attached on the one hand to the switch blade 18 and on the other hand, the closure pawl 10th
carries thankfully.

Bei der in Figur 2 gezeigten und zum Stand der Technik gehörenden Variante des Klinkenverschlusses 2 wird die abliegende Weichenzunge 18 (gepunktete Linie) mit einer auf der Schieberstange angebrachten Nocke 20, welche am unteren Teil der Verschlussklinke 8 lagerseitig formschlüssig ansteht, festgehalten. Mit dem zunehmenden Einsatz von hier nicht weiter dargestellten Zungenrollvorrichtungen, welche die Weichenzungen 18 beim Umstellen leicht von ihrem Gleitsattel anheben, wird der Abschnitt des formschlüssigen Anliegens von der Verschlussklinke 8 und der genannten Nocke 20 immer geringer. In einem sehr ungünstigen Fall könnte (in Kumulation mit anderen Fehlern) die Verschlussklinke 8 die Nocke 20 überspringen. Die abliegende Weichenzunge 18 wäre dann nicht mehr lagestabil geführt.At the in FIG. 2 shown and belonging to the prior art variant of the latch 2, the remote switch blade 18 (dotted line) with a mounted on the slide rod cam 20, which is present on the lower part of the lock pawl 8 bearing side positively held. With the increasing use of not shown here tongue rolling devices, which easily lift the switch blades 18 when switching from its sliding saddle, the portion of the positive engagement of the locking pawl 8 and said cam 20 is always lower. In a very unfavorable case, the occlusion pawl 8 could (in accumulation with other errors) skip the cam 20. The remote switch blade 18 would then no longer be stable in position.

Die Figur 3 zeigt nun einen erfindungsgemässen Klinkenverschluss 2, bei dem auch dieses vorstehend genannte Problem sicher vermieden werden kann. Eine zusätzliche am der Lagerseite gegenüberliegenden Ende der Verschlussklinke 8 auf der Schieberstange 10 angeordnete Nocke 22 begrenzt den Weg der abliegenden Weichenzunge 18. Sollte also im Fehlerfall die Verschlussklinke 8 den ersten Nocken 20 überspringen, wird die Bewegung der abliegenden Weichenzunge 18 durch die zusätzliche Nocke 22 mechanisch begrenzt. Das Abheben durch eine Zungenrollvorrichtung kann sich hier aber auf der vom Lager abgewendeten Seite der Verschlussklinke 8 nicht mehr auswirken, weil die Verschlussklinke hier schwerkraftmässig und aufgrund der schwenkbaren Lagerung unmittelbar auf der Schieberstange 10 aufliegt. Die Verschlussklinke 8 kann an dieser Stelle sozusagen nicht nach "oben" ausweichen, da zudem direkt oberhalb des Klinkenkopfes der Schienenfuss 12 montiert ist.The FIG. 3 now shows a latch closure 2 according to the invention, in which also this aforementioned problem can be safely avoided. An additional on the bearing side opposite end of the pawl 8 arranged on the pusher rod 10 cam 22 limits the path of the remote switch tongue 18. So in case of failure, the pawl 8 skip the first cam 20, the movement of the remote switch blade 18 by the additional cam 22nd mechanically limited. The lifting by a tongue rolling device can here but no longer affect the side facing away from the bearing side of the locking pawl 8, because the closure pawl here rests by gravity and due to the pivotal mounting directly on the slide rod 10. The closure pawl 8 can not, so to speak, dodge "upwards" at this point since, in addition, the rail base 12 is mounted directly above the pawl head.

Somit ist ein sicheres Festhalten der abliegenden Weichenzunge 18 auch im Fehlerfall sicher gewährleistet.Thus, a secure holding the remote switch blade 18 is guaranteed even in case of failure safely.

Der erfinderische Wert der vorliegenden Lösungen liegt in der absolut einfachen Realisierbarkeit einer effizient wirkenden Rückfallebene. Mit geringem Aufwand wird ein höheres Sicherheitsniveau erreicht. Sowohl der konstruktive als auch fertigungstechnische Aufwand zur Umsetzung der Erfindung ist auf eine Modifizierung der Schieberstange 10 begrenzt und somit vergleichsweise gering. Eine Umsetzung und Nachrüstung von bestehenden Klinkenverschlüssen ist somit durch den Austausch der Schieberstange 10 in relativ kurzer Zeit möglich.The inventive value of the present solutions lies in the absolutely simple realizability of an efficiently acting fallback level. With little effort, a higher level of security is achieved. Both the design and production engineering effort to implement the invention is limited to a modification of the slide rod 10 and thus relatively low. An implementation and retrofitting of existing latch locks is thus possible by replacing the slide rod 10 in a relatively short time.

Claims (1)

  1. Clamp lock (2) with a closing latch (8) fixed deviatably to a holding fixture (6) and a connecting rod (10) to lock and unlock the closing latch (8) for both the adjacent blade position and the set off blade position, whereat the connecting rod (10) features a first lobe (20) arranged on the storage side,
    characterized in that
    a second lobe (22) arranged away from the storage at the end of the closing latch (8) is provided for blocking the closing latch (8) in the set off blade position.
EP12176451.8A 2012-07-13 2012-07-13 Clamp lock to securely hold a blade at a distance Active EP2684758B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12176451.8A EP2684758B1 (en) 2012-07-13 2012-07-13 Clamp lock to securely hold a blade at a distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12176451.8A EP2684758B1 (en) 2012-07-13 2012-07-13 Clamp lock to securely hold a blade at a distance

Publications (2)

Publication Number Publication Date
EP2684758A1 EP2684758A1 (en) 2014-01-15
EP2684758B1 true EP2684758B1 (en) 2016-04-27

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ID=46642353

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Application Number Title Priority Date Filing Date
EP12176451.8A Active EP2684758B1 (en) 2012-07-13 2012-07-13 Clamp lock to securely hold a blade at a distance

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016222880A1 (en) * 2016-11-21 2018-05-24 Bharat Forge CDP GmbH Apparatus and method for assisting a switchover of a switch
CN108413899B (en) * 2017-12-13 2021-03-26 中国航发北京航空材料研究院 Positioning fixture for detecting guide vane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB978318A (en) * 1962-08-02 1964-12-23 Standard Telephones Cables Ltd Lock for non-trailable track switches
DE3543403A1 (en) * 1985-12-07 1987-06-11 Laeis Gmbh Device for locking rail points, in particular switch blades to the associated stock rails
CH684939A5 (en) 1993-05-10 1995-02-15 Siemens Integra Verkehrstechni Pawl lock for railway points.
DE19615196A1 (en) * 1996-04-17 1997-10-23 Peddinghaus Carl Dan Gmbh Switch end closure

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