EP0496312B1 - Safety device on a bulk freight wagon - Google Patents

Safety device on a bulk freight wagon Download PDF

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Publication number
EP0496312B1
EP0496312B1 EP92100810A EP92100810A EP0496312B1 EP 0496312 B1 EP0496312 B1 EP 0496312B1 EP 92100810 A EP92100810 A EP 92100810A EP 92100810 A EP92100810 A EP 92100810A EP 0496312 B1 EP0496312 B1 EP 0496312B1
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EP
European Patent Office
Prior art keywords
magnet
safety
lever
unloading
safety 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.)
Expired - Lifetime
Application number
EP92100810A
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German (de)
French (fr)
Other versions
EP0496312A1 (en
Inventor
Werner Ing. Römer
Willy Ing. Kussel
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.)
Tiefenbach GmbH
Original Assignee
Tiefenbach GmbH
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Filing date
Publication date
Application filed by Tiefenbach GmbH filed Critical Tiefenbach GmbH
Priority to AT92100810T priority Critical patent/ATE102558T1/en
Publication of EP0496312A1 publication Critical patent/EP0496312A1/en
Application granted granted Critical
Publication of EP0496312B1 publication Critical patent/EP0496312B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/14—Adaptations of hopper elements to railways
    • B61D7/16—Closure elements for discharge openings
    • B61D7/24—Opening or closing means
    • B61D7/30—Opening or closing means controlled by means external to cars

Definitions

  • the invention relates to a safety device according to the preamble of claim 1.
  • the unloading flap of the unloading device is actuated by a cylinder-piston unit which is actuated via a directional valve influenced by a pilot valve as a control valve. It must be ensured that the unloading flap can only be operated when the wagon is in a designated unloading position, for example a bunker.
  • a safety device is known in which the pilot valve is actuated via a lever controlled by a pivotable magnet. The magnet actuating the lever is in turn actuated by a stationary magnet when the wagon moves into the unloading position.
  • a safety catch is provided which can only be inserted when the unloading flap is closed and then one connected to the pivotable magnet or the lever Locking pin engages under spring pressure. Unintentional actuation of the pilot valve is not possible when the safety catch is engaged. Therefore, before the swivel magnet is actuated the safety catch must be opened, but it must not be opened too early (DE-23 26 085 C).
  • the invention has for its object to provide a way to check the position of the locking pawl from the outside. This object is achieved for the generic safety device from the characterizing part of claim 1.
  • the arrangement of such a signal device ensures that the safety device can be checked quickly and without any special effort.
  • the safety catch is advantageously equipped with two optically clearly distinguishable signal areas, of which one signal area indicates the locked rest position and the other signal area the released unloading position. Only one of the signal areas may be visible from the outside.
  • the signal device has approximately the shape of a segment of a circle, the pivot axis of which essentially coincides with the center of the circle.
  • the signal surfaces which are essentially parallel to the swivel axis, are attached next to one another on the circumference of the circle segment.
  • the securing pawl is expediently set as part of the segment on the suitable side of the circle segment in the region of the outer boundary as a nose.
  • a viewing opening is advantageously provided in the wagon wall, which only releases the signal area corresponding to the current switching position of the safety catch.
  • the viewing opening is preferably closed by a sight glass, which can be designed, for example, as a magnifying lens.
  • the locking pawl is firmly connected to an additional swivel magnet assigned to it. It is preferably arranged and / or designed such that it responds to the stationary magnet in time before the actuation of the pilot valve.
  • FIG. 1 shows the outlines of a bulk goods wagon 1 with the unloading flap 2 closed (drawn with a solid line) and with the unloading flap 2A open (drawn with dash-dot lines).
  • the unloading flap 2 is actuated by a cylinder-piston unit 3, which in turn is controlled by a directional valve 4, 5 acted upon by a pilot valve 6, 7.
  • the pilot valve 6, 7 is actuated by a magnet 10 which can be pivoted between two end positions.
  • the stationary magnet 9 shown as an open rectangle is preferably a reversible electromagnet. It should be noted that its polarity is selected in each case with reference to the movement arrows belonging to the two swivel magnets 10, 13 in such a way that the position of the swivel magnet shown is held, ie in FIG. 2 it shows S (üdpol), in FIG. 3 N (ordpol) to the swivel magnet to act on the swivel magnet 10 in the case of FIG.
  • the pivot magnet 10 acts on the lever 16 in such a way that the lever 16 - after its unlocking by the force of the other magnet 13 - is pivoted about the axis 24 and actuates the tappet 23 of the control valve 6, 7.
  • the drive box 8 for the unloading flap 2 which is shown in simplified form, contains (not visible) the pilot valve 6, 7 which can be actuated via the switching element 23, the directional valve 4, 5 and the cylinder-piston unit 3 with supply.
  • a magnet 10 is provided in a bearing block 11 so as to be pivotable about the pivot axis 12, which magnet rests with a pole, here the north pole, on the free end of a single-armed lever 16 which can be pivoted about an axis 24.
  • the curved bearing end of the lever 16 lies against the switching element 23 which serves to actuate the pilot valve 6, 7 and which is held in the position shown in FIG. 2, for example by spring force.
  • On the lever 16 is at a suitable point, e.g. Approximately in the middle, a pin 18 is attached, which is engaged by a locking pawl 15 protruding nose-like in the embodiment shown. The lever 16 that switches the pilot valve is thereby defined.
  • the locking pawl 15 of the illustrated embodiment is part of a circular segment 17 which is pivotable about the axis 14, which is preferably located in the center of the circle.
  • the catch pawl 15 is formed on the circular segment 17 in the extension of the outer boundary.
  • the signal surfaces (19, 20), which are essentially parallel to the pivot axis, are provided on the circumference of the circular segment 17. Opposite these signal areas, a viewing opening 21 is provided in the wagon wall, each of which the signal area 19; 20 releases, which indicates the current switching position of the locking pawl 15.
  • This viewing opening 21 is advantageously closed by a sight glass 22, the size of which is such that only one of the signal areas 19, 20 is visible.
  • Sight glass 22 can advantageously be a converging lens that acts as a magnifying glass to improve the display.
  • the actuation of the locking pawl 15 can be carried out in any way, i.e. done by hand or with a controllable mechanism.
  • the segment 17 is firmly connected to a further magnet 13, which is also actuated when moving into the unloading position and can be pivoted about the axis 14, and is switchable by this.
  • the swivel magnet 13 is advantageously arranged and / or designed such that it responds to the fixed magnet 9 in front of the swivel magnet 10.
  • FIG. 2 shows the locked position of the locking pawl 15, in which the locking pawl 15 engages behind the locking pin 18, the locking pin 18 is released in FIG. 3 by pivoting the magnet 13, so that the lever 16 moves down and through about the pivot axis 24 the lever 16, the switching piece 23 is pushed to the right in the actuating direction of the pilot valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Lock And Its Accessories (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Handcart (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention relates to a safety device for an unloading flap (2), which can be actuated hydraulically, of a railway goods wagon (1) for bulk freight. A pivot magnet (10) which actuates a control valve (6, 7) is secured in the closed position of the unloading flap (2) by means of a locking pin (18) attached to a lever (16) and can be pivoted in the unloading position about a pivot axis (12). The locking pin (18) interacts here with a signalling device (17) which has a securing latch (15) which, depending on its position, engages behind the locking pin (18) or releases it. In accordance with the invention, the securing latch (15) and signalling device (17) are connected to one another in such a way that the position of the signalling device (17) which is equipped with two optically distinguishable signalling faces (19, 20) can be detected externally by means of a viewing orifice (21). <IMAGE>

Description

Die Erfindung betrifft eine Sicherungseinrichtung nach dem Oberbegriff von Anspruch 1.The invention relates to a safety device according to the preamble of claim 1.

Bei einem bekannten Eisenbahnwaggon für den Transport von Schüttgut wird die Entladeklappe der Entladeeinrichtung durch eine Zylinder-Kolbeneinheit betätigt, die über ein durch ein Vorsteuerventil als Ansteuerventil beeinflußtes Wegeventil angesteuert wird. Dabei muß sichergestellt werden, daß die Entladeklappe nur betätigt werden kann, wenn der Waggon sich in einer vorgesehenen Entladestellung, beispielsweise einem Bunker, befindet. Hierzu ist eine Sicherungseinrichtung bekannt, bei der das Vorsteuerventil über einen durch einen schwenkbaren Magnet angesteuerten Hebel betätigt wird. Der den Hebel ansteuernde Magnet wird seinerseits beim Einfahren des Waggons in die Entladestellung durch einen ortsfesten Magnet angesteuert.In a known railroad car for the transport of bulk goods, the unloading flap of the unloading device is actuated by a cylinder-piston unit which is actuated via a directional valve influenced by a pilot valve as a control valve. It must be ensured that the unloading flap can only be operated when the wagon is in a designated unloading position, for example a bunker. For this purpose, a safety device is known in which the pilot valve is actuated via a lever controlled by a pivotable magnet. The magnet actuating the lever is in turn actuated by a stationary magnet when the wagon moves into the unloading position.

Um zu verhindern, daß der schwenkbare Magnet oder der durch ihn angesteuerte Hebel unbeabsichtigt, z.B. durch Erschütterungen verschwenkt bzw. betätigt werden kann, ist eine Sicherungsklinke vorgesehen, die nur bei geschlossener Entladeklappe eingelegt werden kann und dann einen mit dem schwenkbaren Magnet oder dem Hebel verbundenen Sperrstift unter Federdruck untergreift. Eine unbeabsichtigte Betätigung des Vorsteuerventils ist bei eingerasteter Sicherungsklinke nicht möglich. Daher muß zwar vor der Ansteuerung des Schwenkmagnets die Sicherungsklinke geöffnet werden, das Öffnen darf jedoch nicht zu früh geschehen (DE-23 26 085 C).In order to prevent the pivotable magnet or the lever actuated by it from being accidentally pivoted or actuated, e.g. by vibrations, a safety catch is provided which can only be inserted when the unloading flap is closed and then one connected to the pivotable magnet or the lever Locking pin engages under spring pressure. Unintentional actuation of the pilot valve is not possible when the safety catch is engaged. Therefore, before the swivel magnet is actuated the safety catch must be opened, but it must not be opened too early (DE-23 26 085 C).

Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zu schaffen, um die Stellung der Sicherungsklinke von außen überprüfen zu können. Die Lösung dieser Aufgabe ergibt sich für die gattungsgemäße Sicherungseinrichtung aus dem kennzeichnenden Teil des Anspruchs 1.The invention has for its object to provide a way to check the position of the locking pawl from the outside. This object is achieved for the generic safety device from the characterizing part of claim 1.

Durch die Anordnung einer derartigen Signaleinrichtung wird die Möglichkeit der schnellen und ohne besonderen Aufwand durchführbaren Überprüfung der Sicherungseinrichtung sichergestellt. Die Sicherungsklinke ist vorteilhaft mit zwei optisch deutlich unterscheidbaren Signalflächen ausgestattet, von denen eine Signalfläche die verriegelte Ruhestellung und die andere Signalfläche die freigegebene Entladestellung anzeigt. Nur eine der Signalflächen darf jeweils von außen sichtbar sein.The arrangement of such a signal device ensures that the safety device can be checked quickly and without any special effort. The safety catch is advantageously equipped with two optically clearly distinguishable signal areas, of which one signal area indicates the locked rest position and the other signal area the released unloading position. Only one of the signal areas may be visible from the outside.

Bei einer Weiterbildung der Erfindung hat die Signaleinrichtung etwa die Form eines Kreissegments, dessen Schwenkachse im wesentlichen mit dem Kreismittelpunkt zusammenfällt. Auf dem Umfang des Kreissegments sind die zur Schwenkachse im wesentlichen parallelen Signalflächen nebeneinander angebracht. Die Sicherungsklinke ist bei dieser Ausführung zweckmäßig als Teil des Segments an der geeigneten Seite des Kreissegments im Bereich der Außenbegrenzung als Nase angesetzt.In a development of the invention, the signal device has approximately the shape of a segment of a circle, the pivot axis of which essentially coincides with the center of the circle. The signal surfaces, which are essentially parallel to the swivel axis, are attached next to one another on the circumference of the circle segment. In this embodiment, the securing pawl is expediently set as part of the segment on the suitable side of the circle segment in the region of the outer boundary as a nose.

Vorteilhaft ist in der Waggonwand eine Schauöffnung vorgesehen, welche nur die der momentanen Schaltstellung der Sicherungsklinke entsprechende Signalfläche freigibt. Bevorzugt ist die Schauöffnung durch ein Schauglas verschlossen, das beispielsweise als vergrößernde Linse ausgebildet sein kann.A viewing opening is advantageously provided in the wagon wall, which only releases the signal area corresponding to the current switching position of the safety catch. The viewing opening is preferably closed by a sight glass, which can be designed, for example, as a magnifying lens.

Bei einer vorteilhaften Weiterbildung ist die Sicherungsklinke mit einem ihr zugeordneten weiteren Schwenkmagnet fest verbunden. Er ist bevorzugt derart angeordnet und/oder ausgebildet, daß er zeitlich vor dem der Betätigung des Vorsteuerventils dienenden Schwenkmagnet auf den ortsfesten Magnet anspricht.In an advantageous development, the locking pawl is firmly connected to an additional swivel magnet assigned to it. It is preferably arranged and / or designed such that it responds to the stationary magnet in time before the actuation of the pilot valve.

Anhand des in der beigegebenen Zeichnung dargestellten Ausführungsbeispiels wird die Erfindung erläutert.The invention is explained on the basis of the exemplary embodiment illustrated in the accompanying drawing.

Es zeigt:

Fig. 1
Umriß eines Schüttgutwaggons mit Schema der Sicherungseinrichtung;
Fig. 2
Schwenkmagnete mit Signaleinrichtung, Schalthebel und eingerastetem Sicherungshebel;
Fig. 3
wie Fig. 2, jedoch in Entladestellung.
It shows:
Fig. 1
Outline of a bulk goods wagon with diagram of the safety device;
Fig. 2
Swinging magnets with signaling device, gear lever and locked safety lever;
Fig. 3
as Fig. 2, but in the unloading position.

Die Fig. 1 zeigt die Umrisse eines Schüttgutwaggons 1 mit geschlossener Entladeklappe 2 (durchgezogen gezeichnet) und mit geöffneter Entladeklappe 2A (strichpunktiert gezeichnet). Die Entladeklappe 2 wird durch eine Zylinder-Kolbeneinheit 3 betätigt, die ihrerseits über ein durch ein Vorsteuerventil 6, 7 beaufschlagtes Wegeventil 4, 5 gesteuert wird. Wie in der Zeichnung angedeutet, erfolgt die Betätigung des Vorsteuerventils 6, 7 durch einen zwischen zwei Endstellungen verschwenkbaren Magnet 10.1 shows the outlines of a bulk goods wagon 1 with the unloading flap 2 closed (drawn with a solid line) and with the unloading flap 2A open (drawn with dash-dot lines). The unloading flap 2 is actuated by a cylinder-piston unit 3, which in turn is controlled by a directional valve 4, 5 acted upon by a pilot valve 6, 7. As indicated in the drawing, the pilot valve 6, 7 is actuated by a magnet 10 which can be pivoted between two end positions.

Die Erläuterung der Sicherungseinrichtung mit der erfindungsgemäßen Signaleinrichtung 17 sowie der Betätigung des Vorsteuerventils 6, 7 erfolgt in Verbindung mit den Figuren 2 und 3. Dabei ist der als offenes Rechteck dargestellte ortsfeste Magnet 9 vorzugsweise ein umsteuerbarer Elektromagnet. Zu beachten ist, daß seine Polung jeweils mit Bezug auf die zu den beiden Schwenkmagneten 10, 13 gehörenden Bewegungspfeile so gewählt ist, daß die eingezeichnete Stellung der Schwenkmagneten gehalten wird, d.h in Fig. 2 zeigt S(üdpol), in Fig. 3 N(ordpol) zu den Schwenkmagneten, um im Fall der Fig. 2 so auf den Schwenkmagneten 10 einzuwirken, daß durch die Kraftwirkung des anderen Schwenkmagneten 13 die Signaleinrichtung 17 im Verriegelungssinn des Hebels 16 verschwenkt wird. Im Fall der Fig. 3 wirkt der Schwenkmagnet 10 so auf den Hebel 16 ein, daß der Hebel 16 - nach seiner Entriegelung durch die Kraftwirkung des anderen Magneten 13 - um die Achse 24 geschwenkt wird und den Stößel 23 des Steuerventils 6, 7 betätigt.The explanation of the safety device with the signal device 17 according to the invention and the actuation of the pilot valve 6, 7 takes place in conjunction with FIGS. 2 and 3. The stationary magnet 9 shown as an open rectangle is preferably a reversible electromagnet. It should be noted that its polarity is selected in each case with reference to the movement arrows belonging to the two swivel magnets 10, 13 in such a way that the position of the swivel magnet shown is held, ie in FIG. 2 it shows S (üdpol), in FIG. 3 N (ordpol) to the swivel magnet to act on the swivel magnet 10 in the case of FIG. 2 such that the signal device 17 is swiveled in the locking direction of the lever 16 by the force of the other swivel magnet 13. in the 3, the pivot magnet 10 acts on the lever 16 in such a way that the lever 16 - after its unlocking by the force of the other magnet 13 - is pivoted about the axis 24 and actuates the tappet 23 of the control valve 6, 7.

Der vereinfacht dargestellte Antriebskasten 8 für die Entladeklappe 2 enthält (nicht sichtbar) das über das Schaltstück 23 betätigbare Vorsteuerventil 6, 7, das Wegeventil 4, 5 und die Zylinder-Kolbeneinheit 3 mit Versorgung.The drive box 8 for the unloading flap 2, which is shown in simplified form, contains (not visible) the pilot valve 6, 7 which can be actuated via the switching element 23, the directional valve 4, 5 and the cylinder-piston unit 3 with supply.

Auf dem Antriebskasten 8 ist in einem Lagerbock 11 um die Schwenkachse 12 schwenkbar ein Magnet 10 vorgesehen, der mit einem Pol, hier dem Nordpol, auf dem freien Ende eines einarmigen, um eine Achse 24 schwenkbaren Hebels 16 aufliegt. Das gekrümmte Lagerende des Hebels 16 liegt gegen das der Betätigung des Vorsteuerventils 6, 7 dienende Schaltstück 23 an, das beispielsweise durch Federkraft in der in Fig. 2 gezeigten Stellung gehalten wird. Am Hebel 16 ist an geeigneter Stelle, z.B. etwa in der Mitte, ein Stift 18 angebracht, der von einer in der dargestellten Ausführung nasenartig vorstehenden Sicherungsklinke 15 hintergriffen wird. Der das Vorsteuerventil schaltende Hebel 16 ist dadurch festgelegt.On the drive box 8, a magnet 10 is provided in a bearing block 11 so as to be pivotable about the pivot axis 12, which magnet rests with a pole, here the north pole, on the free end of a single-armed lever 16 which can be pivoted about an axis 24. The curved bearing end of the lever 16 lies against the switching element 23 which serves to actuate the pilot valve 6, 7 and which is held in the position shown in FIG. 2, for example by spring force. On the lever 16 is at a suitable point, e.g. Approximately in the middle, a pin 18 is attached, which is engaged by a locking pawl 15 protruding nose-like in the embodiment shown. The lever 16 that switches the pilot valve is thereby defined.

Die Sicherungsklinke 15 der dargestellten Ausführungsform ist Teil eines Kreissegments 17, das um die Achse 14 schwenkbar ist, die vorzugsweise im Kreismittelpunkt liegt. Eine an dem Kreissegment 17 in Verlängerung der Außenbegrenzung angesetzte Nase bildet die Sicherungsklinke 15. Auf dem Umfang des Kreissegments 17 sind die im wesentlichen zur Schwenkachse parallel ausgerichteten Signalflächen (19, 20) vorgesehen. Diesen Signalflächen gegenüber ist in der Waggonwand eine Schauöffnung 21 vorgesehen, die jeweils die Signalfläche 19; 20 freigibt, welche die momentane Schaltstellung der Sicherungsklinke 15 anzeigt.The locking pawl 15 of the illustrated embodiment is part of a circular segment 17 which is pivotable about the axis 14, which is preferably located in the center of the circle. The catch pawl 15 is formed on the circular segment 17 in the extension of the outer boundary. The signal surfaces (19, 20), which are essentially parallel to the pivot axis, are provided on the circumference of the circular segment 17. Opposite these signal areas, a viewing opening 21 is provided in the wagon wall, each of which the signal area 19; 20 releases, which indicates the current switching position of the locking pawl 15.

Diese Schauöffnung 21 wird vorteilhaft durch ein Schauglas 22 verschlossen, dessen Größe so bemessen ist, daß nur eine der Signalflächen 19, 20 sichtbar wird. Das Schauglas 22 kann zur Verbesserung der Anzeige vorteilhaft eine als Vergrößerungsglas wirkende Sammellinse sein.This viewing opening 21 is advantageously closed by a sight glass 22, the size of which is such that only one of the signal areas 19, 20 is visible. Sight glass 22 can advantageously be a converging lens that acts as a magnifying glass to improve the display.

Die Betätigung der Sicherungsklinke 15 kann auf beliebige Weise, d.h. von Hand oder mit einem steuerbaren Mechanismus erfolgen. Bei der dargestellten Ausführungsform ist das Segment 17 mit einem weiteren, ebenfalls beim Einfahren in die Entladestellung betätigten, um die Achse 14 schwenkbaren Magnet 13 fest verbunden und durch diesen schaltbar. Der Schwenkmagnet 13 ist vorteilhaft derart angeordnet und/oder ausgebildet, daß er zeitlich vor dem Schwenkmagnet 10 auf den ortsfesten Magnet 9 anspricht.The actuation of the locking pawl 15 can be carried out in any way, i.e. done by hand or with a controllable mechanism. In the embodiment shown, the segment 17 is firmly connected to a further magnet 13, which is also actuated when moving into the unloading position and can be pivoted about the axis 14, and is switchable by this. The swivel magnet 13 is advantageously arranged and / or designed such that it responds to the fixed magnet 9 in front of the swivel magnet 10.

Während Fig. 2 die verriegelte Stellung der Sicherungsklinke 15 zeigt, bei der die Sicherungsklinke 15 den Sperrstift 18 hintergreift, ist in Fig. 3 durch Verschwenken des Magneten 13 der Sperrstift 18 freigegeben, so daß der Hebel 16 um die Schwenkachse 24 nach unten und durch den Hebel 16 das Schaltstück 23 nach rechts in Betätigungsrichtung des Vorsteuerventils geschoben wird.2 shows the locked position of the locking pawl 15, in which the locking pawl 15 engages behind the locking pin 18, the locking pin 18 is released in FIG. 3 by pivoting the magnet 13, so that the lever 16 moves down and through about the pivot axis 24 the lever 16, the switching piece 23 is pushed to the right in the actuating direction of the pilot valve.

Claims (6)

  1. Safety equipment for a railroad car (1) for transporting bulk material comprising a cylinder-piston unit (3) for actuating the unloading flap (2), a multiport valve (4,5) operated by means of a pilot valve (6,7) to control the cylinder-piston unit (3), a pivot magnet (10) pivotable by a stationary magnet (9) which can be arranged at the unloading position, that actuates a lever (16) for switching the pilot valve (6, 7) and further comprising a safety latch (15) which cooperates for securing the pivot magnet (10) or the lever (16) in the locking position of the unloading flap (2) with a locking bolt (18) fixed at pivot magnet (10) or lever (16),
    characterized in that
    the safety latch (15) is connected to a signaling device (17), rendering visible the position of the safety latch (15) from outside.
  2. Safety equipment as claimed in claim 1,
    characterized in that
    the safety latch (15) is provided with two optically distinguishable signal areas (19, 20) of which at a time only one is visible from outside and wherein the one signal area (20) indicates the locked idle position and the other signal area (19) indicates the released unloading position.
  3. Safety equipment as claimed in claim 2,
    characterized in that
    the signaling device (17) essentially comprises a circular segment (17) and that the swivel axis of the circular segment (17) coincidences with the centre of the circle and that the signal areas (19, 20) which are provided essentially parallel to the swivel axis are arranged on the periphery of the circular segment (17) and that the safety latch (15) is a lug (15) being attached to the circular segment (17) in the extention of the external limitation.
  4. Safety equipment as claimed in claim 2 or 3,
    characterized in that
    an inspection opening (21) being provided in the wall of the railroad car opens the signal area (19, 20) which is indicating the momentary switching position of the safety latch (15).
  5. Safety equipment as claimed in claim 4,
    characterized in that
    the inspection opening (21) is provided with a gauge glass (22) preferable operating as a magnifying lens.
  6. Safety equipment as claimed in one of the preceding claims,
    characterized in that
    the safety latch (15) is rigidly connected to and switchable through a second pivot magnet (13) wherein the pivot magnet (13) is arranged and / or is designed such that it responds to the stationary magnet (9) before the pivot magnet (10), for actuating the pilot valve (6, 7).
EP92100810A 1991-01-21 1992-01-20 Safety device on a bulk freight wagon Expired - Lifetime EP0496312B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT92100810T ATE102558T1 (en) 1991-01-21 1992-01-20 SAFETY DEVICE ON A BULK CARGO.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4101570 1991-01-21
DE4101570 1991-01-21

Publications (2)

Publication Number Publication Date
EP0496312A1 EP0496312A1 (en) 1992-07-29
EP0496312B1 true EP0496312B1 (en) 1994-03-09

Family

ID=6423362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100810A Expired - Lifetime EP0496312B1 (en) 1991-01-21 1992-01-20 Safety device on a bulk freight wagon

Country Status (3)

Country Link
EP (1) EP0496312B1 (en)
AT (1) ATE102558T1 (en)
DE (1) DE59200079D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114312886B (en) * 2022-03-15 2022-06-21 中车太原机车车辆有限公司 Pull type observation device of railway hopper car and railway hopper car

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295704A (en) * 1964-01-30 1967-01-03 Vapor Corp Automatic unloader for hopper cars
US4153168A (en) * 1977-09-29 1979-05-08 Reustle Walter C Automatic hopper door opener

Also Published As

Publication number Publication date
DE59200079D1 (en) 1994-04-14
EP0496312A1 (en) 1992-07-29
ATE102558T1 (en) 1994-03-15

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