EP0623706A1 - Switch for overhead conveyor system - Google Patents
Switch for overhead conveyor system Download PDFInfo
- Publication number
- EP0623706A1 EP0623706A1 EP94490022A EP94490022A EP0623706A1 EP 0623706 A1 EP0623706 A1 EP 0623706A1 EP 94490022 A EP94490022 A EP 94490022A EP 94490022 A EP94490022 A EP 94490022A EP 0623706 A1 EP0623706 A1 EP 0623706A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- suspension element
- movable section
- articulation
- mobile
- 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.)
- Granted
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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 invention relates to a switching device for suspended conveyors.
- conveyors are used forming a plurality of loops, each of which is generally connected to a main transport path, in particular by means of referral.
- these suspended conveyors comprise rails which are carried by a structure and, for example, are connected to a load-bearing element in particular by means of rigid lines.
- the articulation is of a type with a degree of freedom so that the movable section is really only maintained by said articulation and the trajectory of its free end is defined exclusively by the position of the axis of joint.
- the front face of the movable section is necessarily sufficiently spaced from the end face of the fixed rail considered to allow the escape of the free end of the movable section from its so-called passage position towards its standby position but, nevertheless sufficiently close to not do not interfere smoothly with the passage of the carriages from one rail to another.
- this front face of the movable section is not in abutment on the end of the fixed rail but when a load circulates on this section, it inflicts, at this section, a variable bending with the load and, at the axis of articulation, a stress which could cause, if not shearing, at least rapid wear of this articulation by friction and / or a deformation which would adversely affect the proper functioning of the mobile section.
- the movement of the movable section can be controlled using a motor means, but more generally this is done manually by an attendant.
- the invention relates to such a switching device, in particular characterized in that the free end of the movable section is supported substantially over its entire trajectory by a suspension element connecting said free end to at least one fulcrum which, located above the plane defined by the trajectory of said mobile section considered, is substantially on the axis of the articulation means of the mobile section so as to form a triangulation.
- a conveying installation 1 for example, for a garment workshop which, for transferring the garments from one work station to another, comprises a plurality of loops, each being generally connected to a so-called main track 2 by means of switching devices 3.
- these rails are carried by a structure 4 and, for example, are connected to a carrier element in particular by means of hangers 20.
- the mobile section can be straight or curved.
- the articulation 9, 10 is of a type with a degree of freedom so that the movable section is only really maintained by said articulation and its trajectory is defined exclusively by the position of the articulation axis.
- the rail preferably has an inverted V-shaped section and these are the two branches 12, 13 of the V-shaped which serve as rolling tracks for rolling elements that have carriages (not shown) traveling on the suspended rails.
- the lines are fixed on the tip of the Vé, for example using a weld bead.
- the front face of the movable section is necessarily spaced from the end face of the fixed rail considered to allow the escape of the free end of the movable section from its so-called passage position towards its standby position even if this difference remains small in order to do not interfere smoothly with the passage of the carriages (not shown) from one rail to another.
- the end face 21 of the movable section is orthogonal to the longitudinal axis 22 of the section considered, the latter is inclined on this axis from the tip of the Vé towards the rear of the movable section in the manner of a bias cut and the end face 23 of the fixed rail is also inclined on its axis to obviously remain parallel to the end face 21 of the movable section.
- the axis of rotation 24 of the movable section 5, 6 adjoins the lateral edge of this movable section substantially at the intersection of the rear face of the movable section and the lateral edge on the side from which the movable section escapes. of the fixed section. This is how the minimum distance between the fixed part and the mobile part is allowed without harming its exhaust.
- the raceway is therefore practically continuous and the wheels of the carriage pass well from one rail to another.
- the free end 5b, 6b of the movable section is supported substantially over its entire trajectory by a suspension element 25 connecting said free end 5b, 6b to at least one fulcrum 26 which, located at above the plane defined by the trajectory of said movable section considered, is substantially on the axis 24 of the articulation means 9, 10 of the movable section so as to form a triangulation.
- the suspension element is of the variable length type along the trajectory of the end of the movable section and its variation is controlled as a function of the position of the movable section along the trajectory.
- it is an elastic element of predetermined stiffness.
- the suspension element 25 is of fixed length such as a tie rod.
- this tie can be deformed to bypass part of the structure.
- At least one of the ends of the suspension element is associated with one of the parts that are the fulcrum and the movable section by articulation means 27.
- This means of articulation of the suspension element can be of the type with several degrees of freedom.
- one 28 of the axes of this articulation means connecting the fulcrum 26 and the suspension element 25 is collinear with the axis 24 of the articulation means of the movable section associating the latter with the fixed part of the structure which supports it.
- the articulation means 27 of the suspension element 25 and the articulation means 9, 10 of the movable section are located on either side of the portion of structure supporting said movable section, this with respect to a plane which is substantially horizontal.
- the switching device generally comprises two mobile sections, each of them being connected by a hinge 9, 10 to one of the fixed rails such as the secondary rails.
- These movable sections are shaped so that the free ends alternately occupy the passage position thus connecting one or the other of the secondary rails with the main rail.
- the mobile sections are provided with means 19 for synchronized control of their movement.
- the synchronized control means comprises a link 19 which at least indirectly connects the ends of the movable sections.
- the assembly which are the two mobile sections and the control means is designed so that one of the mobile sections preferentially occupies one of the singular positions.
- the assembly includes a return member (not shown).
- the most usual position of the switch is that in which in particular the movable section which is then curved is lifted and the rail support tube which supports this curved rail is not just vertical to the curved rail but is somewhat shifted.
Abstract
Description
L'invention se rapporte à un dispositif d'aiguillage pour convoyeurs suspendus.The invention relates to a switching device for suspended conveyors.
Notamment dans les installations de confection de vêtements, pour transférer les vêtements d'un poste de travail à un autre, on utilise des convoyeurs formant une pluralité de boucles, chacune étant généralement reliée à une voie de transport principale, notamment par des dispositifs d'aiguillage.In particular in garment-making installations, to transfer garments from one work station to another, conveyors are used forming a plurality of loops, each of which is generally connected to a main transport path, in particular by means of referral.
Classiquement, ces convoyeurs suspendus comprennent des rails qui sont portés par une structure et, par exemple, sont reliés à un élément porteur notamment à l'aide de suspentes rigides.Conventionally, these suspended conveyors comprise rails which are carried by a structure and, for example, are connected to a load-bearing element in particular by means of rigid lines.
Classiquement, un dispositif d'aiguillage comprend au moins un tronçon de rail dit mobile, destiné à relier entre elles, mécaniquement, ou à interrompre la liaison entre elles des extrémités de rails fixes par exemple un rail principal et deux rails secondaires, lequel tronçon mobile a :
- d'une part, l'une de ses extrémités qui est associée à l'un des rails fixes par une articulation et,
- d'autre part, son autre extrémité, dite libre, qui peut prendre deux positions singulières, l'une dite de passage lorsque cette extrémité libre est en vis à vis de la face extrême d'un autre rail fixe et assure ainsi la continuité entre ces deux rails fixes et l'autre dite d'attente lorsque cette extrémité libre se trouve écartée de la face extrême d'un autre rail fixe.
- on the one hand, one of its ends which is associated with one of the fixed rails by an articulation and,
- on the other hand, its other end, called free, which can take two singular positions, one called passage when this free end is opposite the end face of another fixed rail and thus ensures continuity between these two fixed rails and the other called waiting when this free end is spaced from the end face of another fixed rail.
Classiquement, l'articulation est d'un type à un degré de liberté de sorte que le tronçon mobile n'est réellement maintenu que par la dite articulation et la trajectoire de son extrémité libre est définie exclusivement par la position de l'axe d'articulation.Conventionally, the articulation is of a type with a degree of freedom so that the movable section is really only maintained by said articulation and the trajectory of its free end is defined exclusively by the position of the axis of joint.
La face avant du tronçon mobile est nécessairement suffisamment écartée de la face extrême du rail fixe considéré pour permettre l'échappement de l'extrémité libre du tronçon mobile depuis sa position dite de passage vers sa position d'attente mais, néanmoins suffisamment proche pour ne pas nuire au passage sans à-coup des chariots d'un rail à un autre.The front face of the movable section is necessarily sufficiently spaced from the end face of the fixed rail considered to allow the escape of the free end of the movable section from its so-called passage position towards its standby position but, nevertheless sufficiently close to not do not interfere smoothly with the passage of the carriages from one rail to another.
Quelle que soit, en l'absence de charge, l'importance de ce jeu, cette face avant du tronçon mobile n'est pas en appui sur l'extrémité du rail fixe mais lorsqu'une charge circule sur ce tronçon, elle inflige, à ce tronçon, une flexion variable avec la charge et, à l'axe d'articulation, une sollicitation qui pourrait provoquer, sinon un cisaillement, au moins une usure rapide de cette articulation par frottement et/ou une déformation qui nuirait au bon fonctionnement du tronçon mobile.Whatever, in the absence of a load, the importance of this play, this front face of the movable section is not in abutment on the end of the fixed rail but when a load circulates on this section, it inflicts, at this section, a variable bending with the load and, at the axis of articulation, a stress which could cause, if not shearing, at least rapid wear of this articulation by friction and / or a deformation which would adversely affect the proper functioning of the mobile section.
La commande du déplacement du tronçon mobile peut être réalisée à l'aide d'un moyen moteur mais plus généralement celle-ci est faite manuellement par un préposé.The movement of the movable section can be controlled using a motor means, but more generally this is done manually by an attendant.
Pour cela, le préposé doit générer une force orthogonale à l'axe d'articulation.For this, the attendant must generate a force orthogonal to the axis of articulation.
Malheureusement, compte-tenu de la position en hauteur de ces convoyeurs et donc du tronçon mobile à déplacer, il n'est pas rare que le geste du préposé développe tant une force orthogonale à cet axe d'articulation qu'une force sensiblement parallèle à cet axe d'articulation.Unfortunately, given the height position of these conveyors and therefore the mobile section to be moved, it is not uncommon for the operator's gesture to develop both a force orthogonal to this axis of articulation and a force substantially parallel to this axis of articulation.
Ces actions répétées qui sollicitent en flexion le tronçon mobile finissent généralement par accentuer le jeu de l'articulation et conduisent à un défaut de fonctionnement de l'aiguillage.These repeated actions which stress the mobile section in bending generally end up accentuating the play in the joint and lead to a malfunction of the switch.
Un des résultats que l'invention vise à obtenir est un dispositif du type cité plus haut qui remédie aux problèmes évoqués plus haut.One of the results which the invention aims to obtain is a device of the type cited above which overcomes the problems mentioned above.
A cet effet, l'invention se rapporte à un tel dispositif d'aiguillage notamment caractérisé en ce que l'extrémité libre du tronçon mobile est soutenue sensiblement sur la totalité de sa trajectoire par un élément de suspension reliant ladite extrémité libre à au moins un point d'appui qui, situé au dessus du plan défini par la trajectoire dudit tronçon mobile considéré, est sensiblement sur l'axe du moyen d'articulation du tronçon mobile de manière à former une triangulation.To this end, the invention relates to such a switching device, in particular characterized in that the free end of the movable section is supported substantially over its entire trajectory by a suspension element connecting said free end to at least one fulcrum which, located above the plane defined by the trajectory of said mobile section considered, is substantially on the axis of the articulation means of the mobile section so as to form a triangulation.
L'invention sera bien comprise à l'aide de la description ci-aprés faite à titre d'exemple non limitatif en regard du dessin ci-annexé qui représente schématiquement :
- figure 1 : vue de dessus, une installation de convoyage,
- figure 2 : le dispositif d'aiguillage vu de profil,
- figure 3 : une coupe selon III III de la figure 2.
- Figure 1: top view, a conveying installation,
- FIG. 2: the switching device seen in profile,
- Figure 3: a section along III III of Figure 2.
Au dessin, on a représenté partiellement une installation 1 de convoyage, par exemple, pour un atelier de confection de vêtements qui, pour transférer les vêtements d'un poste de travail à un autre, comprend une pluralité de boucles, chacune étant généralement reliée à une voie 2 dite principale de transport par l'intermédiaire de dispositifs d'aiguillage 3.In the drawing, there is partially shown a conveying installation 1, for example, for a garment workshop which, for transferring the garments from one work station to another, comprises a plurality of loops, each being generally connected to a so-called
Classiquement, ces rails sont portés par une structure 4 et, par exemple, sont reliés à un élément porteur notamment à l'aide de suspentes 20.Conventionally, these rails are carried by a
Le dispositif d'aiguillage comprend au moins un tronçon 5, 6 de rail, dit mobile, destiné à relier entre elles, mécaniquement, les extrémités d'au moins deux rails 2, 7, 8 fixes, telles les extrémités d'un rail principal 2 et de deux rails secondaires 7, 8, lequel tronçon mobile 5, 6 a :
- d'une part, l'une 5a, 6a de ses
extrémités 5a, 5b, 6a, 6b qui est associée à l'un des rails fixes par unearticulation 9, 10 et, - d'autre part, son autre extrémité 5b, 6b, dite libre, qui peut prendre deux positions singulières, l'une dite de passage lorsque cette extrémité libre est en vis à vis de la face extrême d'un rail fixe pour assurer une continuité entre deux rails fixes et l'autre dite d'attente lorsque cette extrémité libre se trouve écartée de la face extrême précitée.
- on the one hand, one 5a, 6a of its
ends 5a, 5b, 6a, 6b which is associated with one of the fixed rails by anarticulation 9, 10 and, - on the other hand, its other end 5b, 6b, called free, which can take two singular positions, one called passage when this free end is opposite the end face of a fixed rail to ensure continuity between two fixed rails and the other called waiting when this free end is spaced from the aforementioned end face.
Le tronçon mobile peut être rectiligne ou courbe.The mobile section can be straight or curved.
L'articulation 9, 10 est d'un type à un degré de liberté de sorte que le tronçon mobile n'est réellement maintenu que par la dite articulation et sa trajectoire est définie exclusivement par la position de l'axe d'articulation.The
Le rail a, de préférence, une section en Vé inversé et ce sont les deux branches 12, 13 du Vé qui servent de pistes de roulement pour des organes de roulement que présentent des chariots (non représentés) circulant sur les rails suspendus.The rail preferably has an inverted V-shaped section and these are the two branches 12, 13 of the V-shaped which serve as rolling tracks for rolling elements that have carriages (not shown) traveling on the suspended rails.
Pour permettre le libre passage des chariots suspendus, les suspentes sont fixées sur la pointe du Vé, par exemple à l'aide d'un cordon de soudure.To allow the free passage of the suspended carriages, the lines are fixed on the tip of the Vé, for example using a weld bead.
La face avant du tronçon mobile est nécessairement écartée de la face extrême du rail fixe considéré pour permettre l'échappement de l'extrémité libre du tronçon mobile depuis sa position dite de passage vers sa position d'attente même si cet écart reste faible afin de ne pas nuire au passage sans à-coup des chariots (non représentés) d'un rail à l'autre.The front face of the movable section is necessarily spaced from the end face of the fixed rail considered to allow the escape of the free end of the movable section from its so-called passage position towards its standby position even if this difference remains small in order to do not interfere smoothly with the passage of the carriages (not shown) from one rail to another.
Avantageusement, au lieu que la face extrême 21 du tronçon mobile soit orthogonale à l'axe longitudinal 22 du tronçon considéré, celle-ci est inclinée sur cet axe depuis la pointe du Vé vers l'arrière du tronçon mobile à la manière d'une coupe biaise et la face extrême 23 du rail fixe est également inclinée sur son axe pour rester évidemment parallèle à la face extrême 21 du tronçon mobile.Advantageously, instead of the
Avantageusement, on fait en sorte que l'axe de rotation 24 du tronçon mobile 5, 6 jouxte le bord latéral de ce tronçon mobile sensiblement à l'intersection de la face arrière du tronçon mobile et du bord latéral du côté duquel le tronçon mobile échappe du tronçon fixe. C'est ainsi qu'est permis l'écart minimum entre la partie fixe et la partie mobile sans nuire à son échappement.Advantageously, it is made so that the axis of
Le chemin de roulement est donc pratiquement continu et les roues du chariot passent bien d'un rail à un autre.The raceway is therefore practically continuous and the wheels of the carriage pass well from one rail to another.
Selon l'invention, l'extrémité libre 5b, 6b du tronçon mobile est soutenue sensiblement sur la totalité de sa trajectoire par un élément 25 de suspension reliant ladite extrémité libre 5b, 6b à au moins un point d'appui 26 qui, situé au dessus du plan défini par la trajectoire dudit tronçon mobile considéré, est sensiblement sur l'axe 24 du moyen d'articulation 9, 10 du tronçon mobile de manière à former une triangulation.According to the invention, the free end 5b, 6b of the movable section is supported substantially over its entire trajectory by a
Dans une forme de réalisation (non représentée), l'élément de suspension est du type à longueur variable suivant la trajectoire de l'extrémité du tronçon mobile et sa variation est commandée en fonction de la position du tronçon mobile le long de la trajectoire.In one embodiment (not shown), the suspension element is of the variable length type along the trajectory of the end of the movable section and its variation is controlled as a function of the position of the movable section along the trajectory.
Par exemple, il s'agit d'un élément élastique de raideur prédéterminée.For example, it is an elastic element of predetermined stiffness.
Dans une autre forme de réalisation, l'élément de suspension 25 est de longueur fixe tel un tirant.In another embodiment, the
Eventuellement ce tirant peut être déformé pour contourner une partie de la structure.Possibly this tie can be deformed to bypass part of the structure.
Selon l'invention, au moins l'une des extrémités de l'élément de suspension est associé à l'une des pièces que sont le point d'appui et le tronçon mobile par un moyen d'articulation 27.According to the invention, at least one of the ends of the suspension element is associated with one of the parts that are the fulcrum and the movable section by articulation means 27.
Ce moyen d'articulation de l'élément de suspension peut être du type à plusieurs degrés de liberté.This means of articulation of the suspension element can be of the type with several degrees of freedom.
Par exemple, l'un 28 des axes de ce moyen d'articulation reliant le point d'appui 26 et l'élément de suspension 25 est colinéaire à l'axe 24 du moyen d'articulation du tronçon mobile associant celui-ci à la partie fixe de la structure qui le supporte.For example, one 28 of the axes of this articulation means connecting the fulcrum 26 and the
Le moyen d'articulation 27 de l'élément de suspension 25 et le moyen d'articulation 9,10 du tronçon mobile sont situés de part et d'autre de la portion de structure supportant ledit tronçon mobile, ceci par rapport à un plan sensiblement horizontal.The articulation means 27 of the
Le dispositif d'aiguillage comprend généralement deux tronçons mobiles, chacun d'eux étant relié par une articulation 9,10 à un des rails fixes tels les rails secondaires.The switching device generally comprises two mobile sections, each of them being connected by a
Ces tronçons mobiles sont conformés pour que les extrémités libres occupent alternativement la position de passage reliant ainsi l'un ou l'autre des rails secondaires avec le rail principal.These movable sections are shaped so that the free ends alternately occupy the passage position thus connecting one or the other of the secondary rails with the main rail.
Pour leur déplacement, les tronçons mobiles sont pourvus d'un moyen 19 de commande synchronisé de leur déplacement.For their movement, the mobile sections are provided with
Selon l'invention, le moyen de commande synchronisé comprend une biellette 19 qui relie au moins indirectement les extrémités des tronçons mobiles.According to the invention, the synchronized control means comprises a
De préférence, l'ensemble que sont les deux tronçons mobiles et le moyen de commande est conçu de manière que l'un des tronçons mobiles occupe préférentiellement une des positions singulières.Preferably, the assembly which are the two mobile sections and the control means is designed so that one of the mobile sections preferentially occupies one of the singular positions.
Par exemple, l'un d'eux est plus lourd ou l'ensemble comprend un organe de rappel (non représenté).For example, one of them is heavier or the assembly includes a return member (not shown).
Généralement, la position la plus habituelle de l'aiguillage est celle où notamment le tronçon mobile qui est alors courbe est levé et le tube support de rail qui supporte ce rail courbe n'est pas juste à la verticale du rail courbe mais est un peu décalé.Generally, the most usual position of the switch is that in which in particular the movable section which is then curved is lifted and the rail support tube which supports this curved rail is not just vertical to the curved rail but is somewhat shifted.
Claims (7)
ce dispositif étant caractérisé en ce que l'extrémité libre (5b, 6b) du tronçon mobile est soutenue sensiblement sur la totalité de sa trajectoire par un élément (25) de suspension reliant ladite extrémité libre (5b, 6b) à au moins un point d'appui (26) qui, situé au dessus du plan défini par la trajectoire dudit tronçon mobile considéré, est sensiblement sur l'axe (24) du moyen d'articulation (9, 10) du tronçon mobile de manière à former une triangulation.
this device being characterized in that the free end (5b, 6b) of the mobile section is supported substantially over its entire trajectory by a suspension element (25) connecting said free end (5b, 6b) to at least one point support (26) which, located above the plane defined by the trajectory of said mobile section considered, is substantially on the axis (24) of the articulation means (9, 10) of the mobile section so as to form a triangulation .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9305739A FR2704876B1 (en) | 1993-05-07 | 1993-05-07 | SWITCHING DEVICE FOR SUSPENDED CONVEYORS. |
| FR9305739 | 1993-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0623706A1 true EP0623706A1 (en) | 1994-11-09 |
| EP0623706B1 EP0623706B1 (en) | 1998-03-11 |
Family
ID=9447068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94490022A Expired - Lifetime EP0623706B1 (en) | 1993-05-07 | 1994-05-02 | Switch for overhead conveyor system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0623706B1 (en) |
| AT (1) | ATE163981T1 (en) |
| DE (1) | DE69408893T2 (en) |
| ES (1) | ES2115909T3 (en) |
| FR (1) | FR2704876B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230817A (en) * | 1988-02-29 | 1993-07-27 | Exxon Chemical Patents Inc. | Polyanhydride modified adducts or reactants and oleaginous compositions containing same |
| US5256325A (en) * | 1988-02-29 | 1993-10-26 | Exxon Chemical Patents Inc. | Polyanhydride modified adducts or reactants and oleaginous compositions containing same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE17830E (en) * | 1930-10-14 | Switch | ||
| US2590070A (en) * | 1948-09-30 | 1952-03-18 | John A Shelby | Monorail carrier switch safety mechanism |
| DE2315453A1 (en) * | 1973-03-28 | 1974-10-17 | Mueller Wilhelm Maschf | MONORAIL TRACK FOR THE TRANSPORT OF MATERIALS IN PARTICULAR UNDERGROUND OPERATIONS BETWEEN SHAFT AND TRACK |
| FR2387319A1 (en) * | 1977-04-15 | 1978-11-10 | Tourtellier Sa Ets | Drawer action points for suspended monorail - has chain of articulating segments pivoting about point of rail junction |
| DE3231773A1 (en) * | 1982-08-26 | 1984-03-01 | Paul Vahle Gmbh & Co Kg, 4618 Kamen | Points for a monorail conveyor |
-
1993
- 1993-05-07 FR FR9305739A patent/FR2704876B1/en not_active Expired - Fee Related
-
1994
- 1994-05-02 DE DE69408893T patent/DE69408893T2/en not_active Expired - Fee Related
- 1994-05-02 EP EP94490022A patent/EP0623706B1/en not_active Expired - Lifetime
- 1994-05-02 AT AT94490022T patent/ATE163981T1/en active
- 1994-05-02 ES ES94490022T patent/ES2115909T3/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE17830E (en) * | 1930-10-14 | Switch | ||
| US2590070A (en) * | 1948-09-30 | 1952-03-18 | John A Shelby | Monorail carrier switch safety mechanism |
| DE2315453A1 (en) * | 1973-03-28 | 1974-10-17 | Mueller Wilhelm Maschf | MONORAIL TRACK FOR THE TRANSPORT OF MATERIALS IN PARTICULAR UNDERGROUND OPERATIONS BETWEEN SHAFT AND TRACK |
| FR2387319A1 (en) * | 1977-04-15 | 1978-11-10 | Tourtellier Sa Ets | Drawer action points for suspended monorail - has chain of articulating segments pivoting about point of rail junction |
| DE3231773A1 (en) * | 1982-08-26 | 1984-03-01 | Paul Vahle Gmbh & Co Kg, 4618 Kamen | Points for a monorail conveyor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230817A (en) * | 1988-02-29 | 1993-07-27 | Exxon Chemical Patents Inc. | Polyanhydride modified adducts or reactants and oleaginous compositions containing same |
| US5256325A (en) * | 1988-02-29 | 1993-10-26 | Exxon Chemical Patents Inc. | Polyanhydride modified adducts or reactants and oleaginous compositions containing same |
| US5385687A (en) * | 1988-02-29 | 1995-01-31 | Exxon Chemical Patents Inc. | Polyanhydride modified adducts or reactants and oleaginous compositions containing same |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2704876B1 (en) | 1995-06-23 |
| ATE163981T1 (en) | 1998-03-15 |
| DE69408893T2 (en) | 1998-10-08 |
| DE69408893D1 (en) | 1998-04-16 |
| FR2704876A1 (en) | 1994-11-10 |
| ES2115909T3 (en) | 1998-07-01 |
| EP0623706B1 (en) | 1998-03-11 |
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