EP0302878B1 - Aiguille de systeme de convoyage avec chariots aeriens - Google Patents

Aiguille de systeme de convoyage avec chariots aeriens Download PDF

Info

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
Application number
EP19870902839
Other languages
German (de)
English (en)
Other versions
EP0302878A1 (fr
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 AB
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/fr
Application granted granted Critical
Publication of EP0302878B1 publication Critical patent/EP0302878B1/fr
Expired legal-status Critical Current

Links

Images

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)

Abstract

Une aiguille de système de convoyage avec chariot aérien (1), servant à aiguiller les chariots entre un rail principal (2) et un rail secondaire (4), comprend un premier point de connexion (8), à l'endroit duquel est montée de façon pivotante une première languette d'aiguillage (7), et un second point de connexion (12), à l'endroit duquel est montée de façon pivotante une seconde languette d'aiguillage (1). Les languettes d'aiguillage (7, 11) comblent alternativement l'espace entre le point d'aiguillage (10) et le point de connexion correspondant (8 et 12), de telle sorte qu'un chariot (1) suspendu à l'aide d'une roue (3) est aiguillé sur la languette d'aiguillage (7) ou la languette d'aiguillage (11), c'est-à-dire sur le rail principal (2) ou le rail secondaire (4), suivant la languette qui est pivotée en position d'aiguillage à l'endroit du point d'aiguillage (10). Les languettes d'aiguillage (7, 11) sont simultanément actionnables au moyen d'un arbre de commande (20), auquel sont connectés deux systèmes de liaison (14, 21, 22 et 17, 23, 24, respectivement).

Claims (8)

1. Aiguille de système de convoyage avec chariots aériens (1) destinée à aiguiller les chariots entre une voie principale (2) et une voie d'embranchement (4), lesdites voies ayant chacune un point de raccordement (8 et 12, respectivement) dans l'aiguille (5) et un point commun d'aiguillage (10) placé à distance des points de raccordement, l'espace entre chaque point de raccordement et le point d'aiguillage étant franchissable en alternance par deux lames d'aiguille (7, 11), lesdits points de raccordement (8, 12) et ledit point d'aiguillage (10) étant situés dans un plan commun aux angles d'un triangle imaginaire, et chaque lame d'aiguille (7, 11) étant montée pivotante au point de raccordement respectif de façon que son extrémité libre (9 et 13, respectivement) puisse être déplacée au point d'aiguillage et en être écartée, caractérisée en ce que l'aiguille (5) comprend un élément de support aérien (6, 19) ayant un premier organe de support sensiblement en U qui s'étend essentiellement dans la même direction que la voie principale (2) et comporte une âme aérienne (6) et des ailes dirigées vers le bas et associées à la voie principale (2), ainsi qu'un second organe de support (19) qui fait saillie latéralement dudit premier organe de support et qui est disposé au-dessus de la voie d'embranchement (4) sensiblement à son point de raccordement (12); ladite aiguille (5) comprenant de plus un arbre de commande (20) qui est associé à ladite âme (6) et monté sensiblement transversalement auxdites voies (8, 12) à une distance dudit plan commun et qui est en outre relié non seulement à un premier système articulé (14, 21, 22) prévu pour faire pivoter une lame d'aiguille (7), mais aussi à un second système articulé (17, 23, 24) prévu pour faire pivoter l'autre lame d'aiguille (11); dans laquelle le premier système articulé comporte un premier organe de commande (14) qui est monté pivotant sur une aile dudit premier organe de support et relié à une lame d'aiguille (7), tandis que l'autre système articulé comporte un second organe de commande (17) qui est monté pivotant sur le second organe de support (19) et relié à l'autre lame d'aiguille (11); l'aiguillage desdites lames (7, 11) étant réalisé par l'actionnement de l'arbre de commande (20) qui déplace lesdites lames à l'aide des organes de commande (14, 17) des deux systèmes articulés.
2. Aiguille selon la revendication 1, dans laquelle l'arbre de commande (20) ainsi que les points de raccordement (8, 12) sont situés dans un plan sensiblement perpendiculaire audit plan commun.
3. Aiguille selon la revendication 1 ou 2, dans laquelle l'organe de support (19) est situé dans un plan qui est sensiblement perpendiculaire à la voie d'embranchement (4) au point de raccordement (12) de ladite autre lame d'aiguille (11).
4. Aiguille selon l'une quelconque des revendications précédentes, dans laquelle l'arbre de commande (20) est supporté aussi par le second organe de support (19).
5. Aiguille selon l'une quelconque des revendications précédentes, laquelle comprend un rail de sûreté fixe (26) s'étendant d'un emplacement immédiatement au-dessous du point de raccordement (8 ou 12) d'une lame d'aiguille (7 ou 11) à un emplacement immédiatement au-dessous du point d'aiguillage (10), et affectant la même forme que ladite lame d'aiguille.
6. Aiguille selon l'une quelconque des revendications précédentes, dans laquelle l'arbre de commande (20) peut être tourné à la main au moyen d'une manette (25) ou analogue.
7. Aiguille selon les revendications 1-5, dans laquelle l'arbre de commande (20) peut être tourné automatiquement au moyen d'un ensemble pneumatique ou hydraulique (28).
8. Aiguille selon la revendication 7, laquelle est commandée à distance par des moyens électriques (29), tels que des capteurs de position, qui sont prévus le long desdites voies (2, 4) du système de convoyage pour détecter les mouvements desdits chariots (1).
EP19870902839 1986-04-22 1987-04-22 Aiguille de systeme de convoyage avec chariots aeriens Expired EP0302878B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=20364299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870902839 Expired EP0302878B1 (fr) 1986-04-22 1987-04-22 Aiguille de systeme de convoyage avec chariots aeriens

Country Status (4)

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

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

Similar Documents

Publication Publication Date Title
EP1549575B1 (fr) Dispositif de raccordement dans un systeme de convoyeur aerien
US6394260B1 (en) Conveyor system including roller-guided carriage assemblies
US5127336A (en) Electrically driven self-propelled truck and apparatus for changing course thereof
US3830163A (en) Monorail vehicle switching arrangement
JPH0416371B2 (fr)
EP1156974B1 (fr) Systeme de convoyeur a support de charge aerien
EP0302878B1 (fr) Aiguille de systeme de convoyage avec chariots aeriens
US5067867A (en) Conveyor for mixed freight handling system
US5911300A (en) Flexible mobile conveyor with multipivotal linkage
US3285385A (en) Transloading device
JPH0353206B2 (fr)
WO2000020251A1 (fr) Vehicule de transfert pour systeme transporteur
US4776445A (en) Device for transferring the cup heap of debris onto a drift conveying means
US2894460A (en) Conveyor system
US3103271A (en) Flexible curve
US5829356A (en) Switching device for use in suspended conveyors
US3662688A (en) Coder for industrial conveyors
US4646646A (en) Overhead trolley track switch
US4793462A (en) Material loading apparatus
EP0751891B1 (fr) Dispositif integre a un convoyeur suspendu
US3762334A (en) Switching mechanism for monorail conveyors
US5044283A (en) Free transfer machine, with independent, motorized carriages and with module for orientation of such carriages
US6843358B1 (en) Rotatable transfer track device
US3110383A (en) Diverter mechanisms for automatic routing conveyors
US4595092A (en) Load-pusher assembly for conveyor systems

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19881013

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL SE

17Q First examination report despatched

Effective date: 19900419

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OEHRNELL CONVEYORSYSTEM AKTIEBOLAG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19911113

Ref country code: SE

Effective date: 19911113

Ref country code: NL

Effective date: 19911113

Ref country code: BE

Effective date: 19911113

REF Corresponds to:

Ref document number: 3774574

Country of ref document: DE

Date of ref document: 19911219

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920327

Year of fee payment: 6

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920403

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920610

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930422

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940101