EP0302878B1 - Weiche für fördersystem mit hochbahnwagen - Google Patents

Weiche für fördersystem mit hochbahnwagen Download PDF

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Publication number
EP0302878B1
EP0302878B1 EP19870902839 EP87902839A EP0302878B1 EP 0302878 B1 EP0302878 B1 EP 0302878B1 EP 19870902839 EP19870902839 EP 19870902839 EP 87902839 A EP87902839 A EP 87902839A EP 0302878 B1 EP0302878 B1 EP 0302878B1
Authority
EP
European Patent Office
Prior art keywords
switch
tongue
switching
point
control shaft
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
EP19870902839
Other languages
English (en)
French (fr)
Other versions
EP0302878A1 (de
Inventor
Bengt Anders Walle Persson
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.)
OEHRNELL CONVEYORSYSTEM AKTIEBOLAG
Original Assignee
Ohrnell Conveyorsystem AB
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 Ohrnell Conveyorsystem AB filed Critical Ohrnell Conveyorsystem AB
Publication of EP0302878A1 publication Critical patent/EP0302878A1/de
Application granted granted Critical
Publication of EP0302878B1 publication Critical patent/EP0302878B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
    • E01B25/26—Switches; Crossings

Definitions

  • the present invention generally relates to a switch in a conveyor system with overhead carriages for switching the carriages between a main track and a branch track, and more specifically to a switch of the type defined in the preamble of appended claim 1.
  • a switch of this general structure is disclosed in US-A-3,006,287, on which said preamble is based.
  • This switch consists of a turntable which is located at the point where switching should be performed between two tracks, and which is mounted on a shaft at right angles to the tracks.
  • the turntable carries two track sections whose length and shape are adapted to the discontinuities in the tracks where switching should be effected. By rotating the shaft, one of the track sections of the turntable is brought to a suitable switching position.
  • this switch also suffers from the same shortcomings as the switch mentioned above, i.e. it is difficult to operate and has no distinct, reliable switching positions. Also in this turntable-type switch, the carriages may stop unintentionally and even drop from the tracks.
  • the object of the present invention therefore is to provide a quick, reliable and easily operated switch having distinct, reliable switching positions.
  • Another object of the invention is to provide a switch minimizing the risk that the carriages suspended from the tracks may stop or drop from the track.
  • Fig. 1 illustrates a conveyor system using overhead carriages and including switches according to the invention.
  • Fig. 2 illustrates the switch according to the invention with certain parts removed, when in a first switching position.
  • Fig. 3 illustrates the switch according to the invention with certain parts removed, when in a second switching position.
  • Fig. 1 shows a conveyor system employing trolleys or carriages 1 which are suspended by means of wheels 3 from an undriven track 2 and which in a known manner are manually, freely rollable on the track 2.
  • Associated with the track 2 are a plurality of branch tracks 4 onto which the carriages 1 can be switched, as desired.
  • a switch,5 schematically illustrated in this Figure is provided at each point where branch tracks 4 join the track 2, one of said points being marked with a ring.
  • Fig. 2 it is shown how the switch 5 according to the invention is arranged in relation to the track 2 and the branch track 4.
  • the carriage 1, of which only part is shown, is suspended from the track 2 by means of the wheel 3 which, as mentioned above, is rolling freely on the track 2.
  • the switch 5 is in the position shown in Fig. 2, the carriage 1 can be rolled past the switch 5 without being switched onto the branch track 4.
  • the switch 5, disposed horizontally in the illustrated embodiment, comprises a U-shaped frame 6 located at the side of the track 2.
  • a first switch tongue 7 which is pivotal at a first connecting point 8 and whose free end 9 in the switching position shown is located at a switching point 10. In this switching position, the first switch tongue 7 bridges the space between the first connecting point 8 and the switching point 10 in such a manner that the carriage 1 can be moved through the switch 5 in a direction forming an extension of the track 2.
  • the switch 5 further comprises a second switch tongue 11 which is pivotally mounted at a second connecting point 12 and whose free end 13 in the switching position shown is raised from the switching point 10.
  • the end of the switch tongue 7 located at the necting point 8 is fixedly connected to an L-shaped link element 14 pivotally mounted on one shank 15 of the frame 6 by means of a shaft 16.
  • the end of the switch tongue 11 located at the connecting point 12 is fixedly connected to an L-shaped link element 17 pivotally mounted by means of a shaft 18 on a part 19 of the frame 6.
  • the frame part 19 is spaced from and extends substantially parallel to the shank 15 of the frame 6.
  • a control shaft 20 comprising a first link system in the form of a link arm 21 one end of which is hingedly connected to the L-shaped link element 14 and the other end of which is hingedly connected to a link 22 fixedly mounted on the control shaft 20.
  • the link system 14, 21, 22 controls the pivotal movement of the first switch tongue 7.
  • the switch tongue 11 has a similar link system in the form of a link arm 23 one end of which is hingedly connected to the L-shaped link element 17 and the other end of which is hingedly connected to a link 24 fixedly mounted on the control shaft 20.
  • the link system 17, 23, 24 controls the pivotal movement of the second switch tongue 11.
  • the two link systems 14, 21, 22 and 17, 23, 24 together form a link mechanism which is acutated by the control shaft 20 and by means of which the switch tongues 7, 11 are pivoted about their connecting points 8 and 12, respectively, for performing the switching operation.
  • the rotation of the control shaft 20 is brought about manually by means of a control lever 25.
  • a safety rail 26 having the same shape as the switch tongue 11 is provided underneath this tongue.
  • the rail 26 extends from one location below the switching point 10 to another location below the connecting point 12.
  • the safety rail 26 may of course instead be located below the switch tongue 7.
  • the switch 5 is shown in its second switching position, i.e. after rotation of the control shaft 20.
  • the link mechanism By means of the link mechanism, the free end 9 of the tongue 7 has been pivoted up from the switching point 10, while the free end 13 of the switch tongue 11 has been pivoted down onto the switching point 10.
  • the carriage not shown in this Figure, can thus be rolled onto the branch track 4.
  • connecting points 8, 12 and the switching point 10 are arranged in a common, substantially horizontal plane at the corners of an imaginary triangle. It further appears that the control shaft 20 and the connecting points 8, 12 are located in a plane substantially at right angles to the horizontal plane in which said triangle is contained.
  • the alternate operation of the switch 5, i.e. the pivotal movements of the switch tongues 7, 11 to and from the common switching point 10, is effected in a quick, simple and highly reliable manner.
  • the distinct switching positions of the switch tongues 7, 11, which have a U-shaped section in the illustrated embodiment, are further ensured by a rod or pin 27 which is provided at the switching point 10 and by means of which the ends 9 and 13 of the switch tongues 7 and 11, respectively, are engaged in the switching position. Similar rods are provided at the connecting points 8, 12.
  • the switch 5 has been described as a manually operable switch, but it is evident that it may as well be automatically operable by means of a schematically illustrated pneumatic or hydraulic unit 28 which is part of the conveyor system and which brings about rotation of the control shaft 20 and is controlled by position transducers 29 arranged along the tracks 2, 4 and sensing the movement of the carriages 1 (see Fig. 1).
  • the different parts of the switch 5 are preferably of metal so that the parts to be fixedly interconnected can easily be welded together.
  • the different parts may be assembled by screw means and that the parts may wholly or partly consist of plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chain Conveyers (AREA)
  • Railway Tracks (AREA)

Claims (8)

1. Weiche in einem Fördersystem mit Hängebahnwagen (1) zum Rangieren der Wagen zwischen einer Hauptbahn (2) und einer Zweigbahn (4), welche Bahnen je eine Anschlussstelle (8 bzw. 12) in der Weiche (5) und eine gemeinsame Abzweigstelle (10) im Abstand von den Anschlussstellen haben, wobei der Raum zwischen der jeweiligen Anschlussstelle und der Abzweigstelle mittels zweier Weichenzungen (7, 11) wechselweise überbrückbar ist, die Anschlussstellen (8, 12) und die Abzweigstelle (10) in den Ecken eines gedachten Dreiecks in einer gemeinsamen Ebene angeordnet sind, und jede Weichenzunge (7, 11) an der jeweiligen Anschlussstelle schwenkbar angebracht ist, derart, dass ihr freies Ende (9 bzw. 13) an die Abzweigstelle herangeführt und von dieser entfernt werden kann, dadurch gekennzeichnet, dass die Weiche (5) ein hängendes Tragelement (6, 19), welches ein erstes, im wesentlichen U-förmiges und sich im wesentlichen in der Richtung der Hauptbahn (2) erstreckendes Tragglied mit einem hängenden Steg (6) und sich nach unten erstreckenden, mit der Hauptbahn (2) verbundenen Schenkeln einbegreift, und ein zweites Tragglied (19) umfasst, welches seitwärts vom ersten Tragglied vorragt und oberhalb der Zweigbahn (4) im wesentlichen an der jeweiligen Anschlussstelle (12) untergebracht ist, wobei die Weiche (5) ferner eine in Verbindung mit dem Steg (6) im wesentlichen quer zu den Bahnen (8, 12) angebrachte Steuerwelle (20) aufweist und im Abstand von der gemeinsamen Ebene angeordnet und sowohl mit einem ersten Gelenksystem (14, 21, 22) zum Schwenken der einen Weichenzunge (7) als auch mit einem zweiten Gelenksystem (17, 23, 24) zum Schwenken der anderen Weichenzunge (11) verbunden ist, wobei das erste Gelenksystem ein erstes Betätigungsglied (14) umfasst, das am einen Schenkel des ersten Tragglieds drehbar gelagert und mit der einen Weichenzunge (7) verbunden ist, während das andere Gelenksystem ein zweites Betätigungsglied (17) umfasst, das am zweiten Tragglied (19) drehbar gelagert und mit der anderen Weichenzunge (11) verbunden ist, wobei die Verschiebung der Weichenzungen (7, 11) durch Betätigung der Steuerwelle (20) zustandegebracht wird, welche über die Betätigungsglieder (14, 17) der beiden Gelenksysteme die Zungen bewegt.
2. Weiche nach Anspruch 1, dadurch gekennzeichnet, dass sich die Steuerwelle (20) und die Anschlussstellen (8, 12) in einer Ebene im wesentlichen rechtwinklig zur genannten gemeinsamen Ebene befinden.
3. Weiche nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich das Tragglied (19) in einer Ebene befindet, die sich im wesentlichen rechtwinklig zur Zweigbahn (4) an der Anschlussstelle (12) der anderen Weichenzunge (11) erstreckt.
4. Weiche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Steuerwelle (20) auch vom Tragglied (19) gestützt ist.
5. Weiche nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine feste Sicherheitsschiene (26), die sich von einem Punkt direkt unterhalb der Anschlussstelle (8 oder 12) der einen Weichenzunge (7 oder 11) zu einem Punkt direkt unterhalb der Anschlussstelle (10) erstreckt und dieselbe Form hat wie die Weichenzunge.
6. Weiche nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Steuerwelle (20) mittels eines Bedienungshebels (25) od. dgl. von Hand drehbar ist.
7. Weiche nach den Ansprüchen 1-5, dadurch gekennzeichnet, dass die Steuerwelle (20) mittels einer pneumatïschen oder hydraulischen Einheit (28) automatisch drehbar ist.
8. Weiche nach Anspruch 7, dadurch gekennzeichnet, dass sie durch elektrische Mittel (29), beispielsweise Lagemesswandler, ferngesteuert ist, welche längs der Bahnen (2,4) des Fördersystems untergebracht sind und die Bewegung der Wagen (1) abtasten.
EP19870902839 1986-04-22 1987-04-22 Weiche für fördersystem mit hochbahnwagen Expired - Lifetime EP0302878B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8601850 1986-04-22
SE8601850A SE457246B (sv) 1986-04-22 1986-04-22 Vaexel i ett transportoersystem med haengande vagnar

Publications (2)

Publication Number Publication Date
EP0302878A1 EP0302878A1 (de) 1989-02-15
EP0302878B1 true EP0302878B1 (de) 1991-11-13

Family

ID=20364299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870902839 Expired - Lifetime EP0302878B1 (de) 1986-04-22 1987-04-22 Weiche für fördersystem mit hochbahnwagen

Country Status (4)

Country Link
EP (1) EP0302878B1 (de)
DE (1) DE3774574D1 (de)
SE (1) SE457246B (de)
WO (1) WO1987006549A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220902B (en) * 1988-04-05 1992-03-18 Stockrail Ltd Improvements relating to conveyor distribution systems
US5271333A (en) * 1992-09-29 1993-12-21 Erie Manufacturing, Inc. Switching mechanism for trolleys
FR2702229B1 (fr) * 1993-03-03 1995-05-12 Vens Sa Dispositif d'aiguillage pour convoyeurs suspendus et installations de manutention pourvues des dits dispositifs d'aiguillage.
GB9625388D0 (en) * 1996-12-06 1997-01-22 Stockrail Mfg Ltd Improvements relating to rail switches
US5784965A (en) * 1997-04-16 1998-07-28 Knight Industries, Inc. Interlock mechanism for an overhead trackway system
DE19804705B4 (de) * 1998-02-06 2006-05-24 Wf Logistik Gmbh Weiche für ein Hängefördersystem

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE179972C1 (de) * 1962-01-01
US1078945A (en) * 1912-02-23 1913-11-18 Christopher K Murray Overhead switch.
US2746397A (en) * 1954-08-30 1956-05-22 Fiell Sidney Le Automatic switch for overhead track
US3006287A (en) * 1958-05-07 1961-10-31 Cincinnati Butchers Supply Co Automatic track switch
GB977912A (en) * 1962-03-01 1964-12-16 Beck & Henkel Maschb Ag Junction for an overhead conveyor track
US3839966A (en) * 1972-08-29 1974-10-08 Cincinnati Butchers Supply Co Safety means for trolley switches
US3818836A (en) * 1973-06-19 1974-06-25 Cincinnati Butchers Supply Co Switch mechanism for overhead trolley

Also Published As

Publication number Publication date
EP0302878A1 (de) 1989-02-15
SE8601850L (sv) 1987-10-23
DE3774574D1 (de) 1991-12-19
SE457246B (sv) 1988-12-12
SE8601850D0 (sv) 1986-04-22
WO1987006549A1 (en) 1987-11-05

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