EP0306015A1 - Guiding system for the forced guiding of elements movable in respect to each other - Google Patents

Guiding system for the forced guiding of elements movable in respect to each other Download PDF

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Publication number
EP0306015A1
EP0306015A1 EP88114250A EP88114250A EP0306015A1 EP 0306015 A1 EP0306015 A1 EP 0306015A1 EP 88114250 A EP88114250 A EP 88114250A EP 88114250 A EP88114250 A EP 88114250A EP 0306015 A1 EP0306015 A1 EP 0306015A1
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EP
European Patent Office
Prior art keywords
joints
elements
guided
guiding
lemniscate
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EP88114250A
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German (de)
French (fr)
Inventor
Hans Lachner
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Kloeckner Becorit GmbH
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Publication of EP0306015A1 publication Critical patent/EP0306015A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0633—Mechanical arrangements not covered by the following subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0691—Asymmetric linkages, i.e. Y-configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated

Definitions

  • the invention relates to a guide system for the forced guidance of two mutually movable elements, consisting of two Lemniskaten handlebar gears running parallel to each other with their pivoting planes, each with three links, which are each connected by two inner joints to one another and three outer joints to the elements to be guided.
  • a positive guidance system for hoists working exclusively with rigid links and pin joints which guides the two mutually movable elements in a straight line and at the same time keeps them in a parallel position over the entire guide path.
  • This positive guidance system also has two link gears between the two elements to be guided, the pivoting planes of which, however, are perpendicular to one another.
  • Each link transmission consists of two links that are connected to each other by an inner joint and attached to the parts to be guided via two outer joints.
  • This known positive guidance system has the disadvantage that pivoting movements of the guided part in the pivoting plane of one of the link gears can only be prevented by torsional loads on the other link gearing.
  • the torsional stresses to be absorbed make it very necessary to train the handlebars and joints of both linkage transmissions very strongly.
  • this previously known handlebar guidance system requires a relatively large amount of space on all sides, because the two handlebar transmissions operate in two mutually perpendicular planes.
  • the object of the invention is to develop the positive guidance system of the type mentioned in such a way that, while maintaining the simple, robust and space-saving design, the two elements which are brought together are held in a predetermined, preferably in a parallel position, over the entire guide path.
  • the positive guidance system should be designed so that the lowest possible internal forces occur in the guide system in the event of asymmetrical force application to the elements to be guided.
  • the invention proposes, starting from a positive guidance system of the type mentioned, that three of the six outer joints of the two lemniscate linkage transmissions are arranged on one and three on the other of the elements to be guided, and that the two are provided with the inner joints Handlebars run approximately parallel to each other.
  • the positive guidance system according to the invention works in a particularly advantageous manner, as does the gat tion-forming positive guidance system exclusively with rigid handlebars and simple pin joints, the two link gears are essentially stressed on the tension and pressure of the handlebars used. Due to the special arrangement and design of the two Lemniskaten handlebar gears, the positive guidance system according to the invention works absolutely free of constraint and almost straight. It therefore has decisive advantages over all the positive guidance systems known in the prior art.
  • the lifting table shown in the drawing has a base plate 1 and a lifting plate 2 which can be raised and lowered. Between the base plate 1 and the lifting plate 2 there is a pressure-actuated lifting cylinder 3, which is mounted on the base plate 1 on the one hand and the lifting plate 2 on the other hand by means of spherical bearings 4 and 5. Furthermore, between the base plate 1 and the lifting plate 2 are two Lemniskatenlenker gear 6 and 7, which are arranged on both sides next to the lifting cylinder 3.
  • the lemniscate link mechanism 7 is constructed in terms of structure and dimensions in the same way as the lemniscate link system 6 already described. However, it is arranged the other way around between the base plate 1 and the lifting plate 2. Accordingly, the lemniscate linkage 7 also has two short links 7a and 7b and one long link 7c.
  • the short links 7a and 7b are articulated to the lifting plate 2 by means of outer joints 9a and 9b and to the long link 7c by means of inner joints 9c and 9d, which acts on the base plate 1 at its outer end by means of an outer joint 9e.
  • the two outer joints 9a and 9b together with the two inner joints 9c and 9d form a quadrilateral, which guide the outer joint 9e with respect to the lifting plate 2 along an approximately vertical straight line.
  • the guidance is not exactly straight, but runs along the S-shaped lemniscate curve already explained above. Due to the similar design of the two lemniscate link gears 6 and 7, the two long links 6c and 7c run approximately parallel to one another. The two lemniscate curves generated coincide, so that in the there are no constraints in the entire management system.
  • the two Lemniskatenscher transmissions 6 and 7 have a total of six outer joints, namely the joints 8a, 8b and 8e and the joints 9a, 9b and 9e. Furthermore, the two lemniscate link gears 6 and 7 have four inner joints, namely the joints 8c and 8d and 9c and 9d.
  • three outer joints namely the outer joints 8a and 8b and the outer joint 9e of the base plate 1 are assigned.
  • the remaining three outer joints, namely the outer joints 9a and 9b and the outer joint 8e are assigned to the lifting plate 2.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Manipulator (AREA)

Abstract

A guide system for forced guiding of two mutually displaceable elements (1, 2) comprises two lemniscate guide rod mechanisms (6, 7) which pivot in parallel planes and have three guide rods (6a, 6b, 6c; 7a, 7b, 7c) connected via two inner joints (8c, 8d; 9c, 9d) and three outer joints (8a, 8b, 8c, 9a, 9b, 9e) to the elements to be guided. In order to obtain parallel guiding of the guided elements (1, 2) with this type of forced guiding system and hence minimal internal forces when force is asymmetrically applied to the elements to be guided, three of the total six outer joints (8a, 8b, 8e; 9a, 9b, 9e) of the two lemniscate guide rod mechanisms (6, 7) are arranged on one of the elements to be guided (1, 2) and the other three outer joints are arranged on the other element to be guided. The two guide rods (6c, 7c) provided with inner joints (8c, 8d, 9c, 9d) are essentially parallel to each other.

Description

Die Erfindung betrifft ein Führungssystem für die Zwangsführung von zwei gegeneinander beweglichen Ele­menten, bestehend aus zwei mit ihren Schwenkebenen parallel zueinander verlaufenden Lemniskatenlenker­getrieben mit jeweils drei Lenkern, die jeweils durch zwei innere Gelenke miteinander und drei äußere Gelen­ke mit den zu führenden Elementen verbunden sind.The invention relates to a guide system for the forced guidance of two mutually movable elements, consisting of two Lemniskaten handlebar gears running parallel to each other with their pivoting planes, each with three links, which are each connected by two inner joints to one another and three outer joints to the elements to be guided.

Zwangsführungssysteme der angegebenen Art mit Lemnis­katenlenkergetrieben sind zum Beispiel im Zusammen­hang mit Strebausbaugestellen für den untertägigen Grubenbetrieb bekannt (vgl. beispielsweise DE-PS 25 57 255). Bei derartigen Strebausbaugestellen die­nen die beiden Lemniskatenlenkergetriebe dazu, die Kappe in Bezug auf die Sohlplatte vertikal zu führen und zu stabilisieren. Dabei sind vier der insgesamt sechs äußeren Gelenke der beiden Lemniskatenlenkerge­triebe an der Sohlplatte und die zwei verbleibenden Gelenke an der Kappe angeordnet, so daß sich die Kappe relativ zur Sohlplatte parallel zu den Schwenk­ebenen der Lemniskatenlenkergetriebe neigen kann. Zwangsführungen der genannten Art haben den besonde­ren Vorteil, daß sie äußerst robust sind und trotz Verwendung von ausschließlich starren Lenkern und ein­fachen Bolzengelenken eine nahezu geradlinige Zwangs­führung ermöglichen.Forced guidance systems of the specified type with lemniscate link gears are known, for example, in connection with longwall construction frames for underground mining operations (see, for example, DE-PS 25 57 255). In longwall construction racks of this type, the two lemniscate link gears serve to vertically guide and stabilize the cap with respect to the base plate. Four of the total six outer joints of the two lemniscate link gears on the base plate and the two remaining links on the cap, so that the cap can incline relative to the base plate parallel to the pivoting planes of the lemniscate link gears. Positive guides of the type mentioned have the particular advantage that they are extremely robust and, despite the use of only rigid links and simple pin joints, enable an almost straightforward positive guide.

Geradlinig oder nahezu geradlinig arbeitende Zwangs­führungen werden in der Technik auch sonst vielfältig benötigt. So verwendet man beispielsweise für Hebebüh­nen oder Fensterheber scherenartig ausgebildete Len­kerführungssysteme, die jedoch immer in den Zwangsfüh­rungen eine längsverschiebbare Gleitführung benötigen und deshalb von der Stabilität und vom Wartungsauf­wand her anfälliger sind als Lemniskatenlenkergetrie­be der eingangs genannten Art, die ohne jede Geradfüh­rung auskommen.Straight or almost straight-line forced guidance is also required in many other ways in technology. For example, one uses scissor-type handlebar guidance systems for lifting platforms or window regulators, which, however, always require a longitudinally displaceable sliding guide in the constrained guides and are therefore more susceptible in terms of stability and maintenance effort than lemniscate handlebar transmissions of the type mentioned at the outset, which do not require any straight guidance.

Nach dem Stande der Technik (DE-OS 31 08 552) ist wei­terhin eine ausschließlich mit starren Lenkern und Bolzengelenken arbeitendes Zwangsführungssystem für Hebezeuge bekannt, welches die beiden gegeneinander beweglichen Elemente geradlinig führt und zugleich über den gesamten Führungsweg in einer Parallellage hält. Dieses Zwangsführungssystem weist zwischen den beiden zu führenden Elementen ebenfalls zwei Lenker­getriebe auf, deren Schwenkebenen allerdings senk­recht zueinander verlaufen. Dabei besteht jedes Len­kergetriebe aus zwei Lenkern, die untereinander durch ein inneres Gelenk verbunden sind über zwei äuße­re Gelenke an den zu führenden Teilen befestigt sind.According to the state of the art (DE-OS 31 08 552), a positive guidance system for hoists working exclusively with rigid links and pin joints is also known, which guides the two mutually movable elements in a straight line and at the same time keeps them in a parallel position over the entire guide path. This positive guidance system also has two link gears between the two elements to be guided, the pivoting planes of which, however, are perpendicular to one another. Each link transmission consists of two links that are connected to each other by an inner joint and attached to the parts to be guided via two outer joints.

Dieses vorbekannte Zwangsführungssystem hat den Nach­teil, daß Schwenkbewegungen des geführten Teiles in der Schwenkebene eines der Lenkergetriebe nur durch Torsionsbelastungen des jeweils anderen Lenkergetrie­bes verhindert werden können. Die dabei aufzunehmen­den Torsionsspannungen machen es notwendig, Lenker und Gelenke beider Lenkergetriebe sehr stark aus­zubilden. Außerdem benötigt dieses vorbekannte Lenker­führungssystem verhältnismäßig viel Raum nach allen Seiten hin, weil die beiden Lenkergetriebe in zwei senkrecht zueinander verlaufenden Ebenen arbeiten.This known positive guidance system has the disadvantage that pivoting movements of the guided part in the pivoting plane of one of the link gears can only be prevented by torsional loads on the other link gearing. The torsional stresses to be absorbed make it very necessary to train the handlebars and joints of both linkage transmissions very strongly. In addition, this previously known handlebar guidance system requires a relatively large amount of space on all sides, because the two handlebar transmissions operate in two mutually perpendicular planes.

Aufgabe der Erfindung ist es, das Zwangsführungssy­stem der eingangs genannten Art dahingehend weiterzu­bilden, daß unter Beibehaltung der einfachen, robu­sten und raumsparenden Bauweise die beiden aneinander geführten Elemente über den gesamten Führungsweg in einer vorbestimmten, vorzugsweise in einer Parallel­lage gehalten werden. Dabei soll das Zwangsführungs­system so ausgebildet sein, daß bei unsymmetrischem Kraftangriff an den zu führenden Elementen in dem Führungssystem möglichst geringe innere Kräfte auftre­ten.The object of the invention is to develop the positive guidance system of the type mentioned in such a way that, while maintaining the simple, robust and space-saving design, the two elements which are brought together are held in a predetermined, preferably in a parallel position, over the entire guide path. The positive guidance system should be designed so that the lowest possible internal forces occur in the guide system in the event of asymmetrical force application to the elements to be guided.

Zur Lösung dieser Aufgabe schlägt die Erfindung aus­gehend von einem Zwangsführungssystem der eingangs genannten Art vor, daß drei der insgesamt sechs äuße­ren Gelenke der beiden Lemniskatenlenkergetriebe an dem einen und drei an dem anderen der zu führenden Elemente angeordnet sind und daß die beiden mit den inneren Gelenken versehenen Lenker etwa parallel zu­einander verlaufen.To achieve this object, the invention proposes, starting from a positive guidance system of the type mentioned, that three of the six outer joints of the two lemniscate linkage transmissions are arranged on one and three on the other of the elements to be guided, and that the two are provided with the inner joints Handlebars run approximately parallel to each other.

Das Zwangsführungssystem gemäß der Erfindung arbeitet in besonders vorteilhafter Weise ebenso wie das gat­ tungsbildende Zwangsführungssystem ausschließlich mit starren Lenkern und einfachen Bolzengelenken, wobei die beiden Lenkergetriebe im wesentlichen auf Zug und Druck der verwendeten Lenker beansprucht werden. Auf­grund der besonderen Anordnung und Ausbildung der beiden Lemniskatenlenkergetriebe arbeitet das Zwangs­führungssystem gemäß der Erfindung absolut zwängungs­frei und nahezu geradlinig. Es hat somit gegenüber allen nach dem Stande der Technik bekannten Zwangsfüh­rungssystemen entscheidende Vorteile.The positive guidance system according to the invention works in a particularly advantageous manner, as does the gat tion-forming positive guidance system exclusively with rigid handlebars and simple pin joints, the two link gears are essentially stressed on the tension and pressure of the handlebars used. Due to the special arrangement and design of the two Lemniskaten handlebar gears, the positive guidance system according to the invention works absolutely free of constraint and almost straight. It therefore has decisive advantages over all the positive guidance systems known in the prior art.

Ein Ausführungsbeispiel der Erfindung wird im folgen­den anhand der Zeichnung näher erläutert. Es zeigen:

  • Fig. 1 Einen Hubtisch mit einem Zwangs­führungssystem gemäß der Erfin­dung schematisch in Seitenan­sicht;
  • Fig. 2 schematisch eine Draufsicht zu Fig.1.
An embodiment of the invention is explained below with reference to the drawing. Show it:
  • Figure 1 shows a lifting table with a positive guidance system according to the invention schematically in side view.
  • 2 schematically shows a top view of FIG. 1.

Der in der Zeichnung dargestellte Hubtisch weist eine Grundplatte 1 und einen hebe- und absenkbar angeordne­te Hubplatte 2 auf. Zwischen der Grundplatte 1 und der Hubplatte 2 befindet sich ein druckmittelbetä­tigter Hubzylinder 3, der mittels kalottenförmiger Lager 4 und 5 an der Grundplatte 1 einerseits und der Hubplatte 2 andererseits gelagert ist. Weiterhin be­finden sich zwischen der Grundplatte 1 und der Hub­platte 2 zwei Lemniskatenlenkergetriebe 6 und 7, die beiderseits neben dem Hubzylinder 3 angeordnet sind.The lifting table shown in the drawing has a base plate 1 and a lifting plate 2 which can be raised and lowered. Between the base plate 1 and the lifting plate 2 there is a pressure-actuated lifting cylinder 3, which is mounted on the base plate 1 on the one hand and the lifting plate 2 on the other hand by means of spherical bearings 4 and 5. Furthermore, between the base plate 1 and the lifting plate 2 are two Lemniskatenlenker gear 6 and 7, which are arranged on both sides next to the lifting cylinder 3.

Das Lemniskatenlenkergetriebe 6 weist zwei kurze Len­ker 6a und 6b sowie einen langen Lenker 6c auf. Die kurzen Lenker 6a und 6b sind mittels äußerer Gelenke 8a und 8b an der Grundplatte 1 und mittels innerer Gelenke 8c und 8d dem langen Lenker 6c angelenkt, der an seinem äußeren Ende mittels eines äußeren Gelenkes 8e an der Hubplatte 2 angreift. Dabei bilden die äußeren Gelenke 8a und 8b sowie die inneren Gelenke 8c und 8d ein Gelenkviereck, welches das äu­ßere Gelenk 8e in Bezug auf die Grundplatte 1 nahezu geradlinig vertikal führt. Die Führungslinie ist nicht exakt gerade, weil das Gelenkviereck eine ge­streckte Lemniskatenkurve erzeugt, die in etwa S-för­mig gekrümmt verläuft, wobei die Abweichung von einer Geraden allerdings nur gering ist.The lemniscate link mechanism 6 has two short links 6a and 6b and one long link 6c. The short links 6a and 6b are by means of outer joints 8a and 8b on the base plate 1 and by means of inner ones Joints 8c and 8d are articulated to the long link 6c, which acts on the lifting plate 2 at its outer end by means of an outer joint 8e. The outer joints 8a and 8b and the inner joints 8c and 8d form a four-bar linkage which guides the outer joint 8e vertically in an almost straight line with respect to the base plate 1. The guideline is not exactly straight because the four-bar linkage creates an elongated lemniscate curve that is curved in an approximately S-shape, although the deviation from a straight line is only slight.

Das Lemniskatenlenkergetriebe 7 ist in Bezug auf den Aufbau und die Abmessungen gleichartig aufgebaut, wie das bereits beschriebene Lemniskatenlenkersystem 6. Es ist jedoch andersherum zwischen der Grundplatte 1 und der Hubplatte 2 angeordnet. Demgemäß weist auch das Lemniskatenlenkergetriebe 7 zwei kurze Lenker 7a und 7b sowie einen langen Lenker 7c auf. Die kurzen Lenker 7a und 7b sind mittels äußerer Gelenke 9a und 9b an der Hubplatte 2 und mittels innerer Gelenke 9c und 9d an dem langen Lenker 7c angelenkt, der an seinem äußeren Ende mittels eines äußeren Gelenkes 9e an der Grundplatte 1 angreift. Dabei bilden auch hier die beiden äußeren Gelenke 9a und 9b zusammen mit den beiden inneren Gelenken 9c und 9d ein Gelenkviereck, welches das äußere Gelenk 9e in Bezug auf die Hubplat­te 2 entlang einer etwa vertikalen geraden Linie füh­ren. Auch hier ist die Führung nicht exakt geradli­nig, sondern verläuft entlang der bereits oben erläu­terten S-förmigen Lemniskatenkurve. Aufgrund der gleichartigen Ausbildung der beiden Lemniskatenlenker­getriebe 6 und 7 verlaufen die beiden langen Lenker 6c und 7c etwa parallel zueinander. Die beiden erzeug­ten Lemniskatenkurven decken sich, so daß sich in dem gesamten Führungssystem keine Zwängungen ergeben.The lemniscate link mechanism 7 is constructed in terms of structure and dimensions in the same way as the lemniscate link system 6 already described. However, it is arranged the other way around between the base plate 1 and the lifting plate 2. Accordingly, the lemniscate linkage 7 also has two short links 7a and 7b and one long link 7c. The short links 7a and 7b are articulated to the lifting plate 2 by means of outer joints 9a and 9b and to the long link 7c by means of inner joints 9c and 9d, which acts on the base plate 1 at its outer end by means of an outer joint 9e. Here, too, the two outer joints 9a and 9b together with the two inner joints 9c and 9d form a quadrilateral, which guide the outer joint 9e with respect to the lifting plate 2 along an approximately vertical straight line. Here, too, the guidance is not exactly straight, but runs along the S-shaped lemniscate curve already explained above. Due to the similar design of the two lemniscate link gears 6 and 7, the two long links 6c and 7c run approximately parallel to one another. The two lemniscate curves generated coincide, so that in the there are no constraints in the entire management system.

Die beiden Lemniskatenlenkergetriebe 6 und 7 haben insgesamt sechs äußere Gelenke, nämlich die Gelenke 8a, 8b und 8e sowie die Gelenke 9a, 9b und 9e. Wei­terhin haben die beiden Lemniskatenlenkergetriebe 6 und 7 vier innere Gelenke, nämlich die Gelenke 8c und 8d sowie 9c und 9d.The two Lemniskatenlenker transmissions 6 and 7 have a total of six outer joints, namely the joints 8a, 8b and 8e and the joints 9a, 9b and 9e. Furthermore, the two lemniscate link gears 6 and 7 have four inner joints, namely the joints 8c and 8d and 9c and 9d.

Nach der Lehre der Erfindung sind jeweils drei äußere Gelenke, nämlich die äußeren Gelenke 8a und 8b sowie das äußere Gelenk 9e der Grundplatte 1 zugeordnet. Die verbleibenden drei äußeren Gelenke, nämlich die äußeren Gelenke 9a und 9b sowie das äußere Gelenk 8e sind der Hubplatte 2 zugeordnet. Auf diese Weise ergeben sich sowohl an der Grundplatte 1 als auch an der Hubplatte 2 jeweils drei Kraftangriffspunkte, die in besonders vorteilhafter Weise ein statisch bestimm­tes System bilden.According to the teaching of the invention, three outer joints, namely the outer joints 8a and 8b and the outer joint 9e of the base plate 1 are assigned. The remaining three outer joints, namely the outer joints 9a and 9b and the outer joint 8e are assigned to the lifting plate 2. In this way, there are three force application points both on the base plate 1 and on the lifting plate 2, which in a particularly advantageous manner form a statically determined system.

Das Ausführungsbeispiel erläutert das Zwangsführungs­system gemäß der Erfindung an einem Hubtisch. Abwei­chend davon kann das Zwangsführungssystem gemäß der Erfindung auch anderswo eingesetzt werden, beispiels­weise für hebe- und absenkbare Krankenstühle, für Fen­sterheber in Autotüren, für Grubenausbaugestelle, Schubladenführungen etc.The exemplary embodiment explains the positive guidance system according to the invention on a lifting table. Deviating from this, the positive guidance system according to the invention can also be used elsewhere, for example for lifting and lowering hospital chairs, for window regulators in car doors, for pit removal frames, drawer guides, etc.

Claims (1)

Führungssystem für die Zwangsführung von zwei gegeneinander beweglichen Elementen, bestehend aus zwei mit ihren Schwenkebenen parallel zueinander verlaufenden Lemniskatenlenkergetrieben mit jeweils drei Lenkern, die durch zwei innere Gelenke miteinan­der und durch drei äußere Gelenke mit den zu führen­den Elementen verbunden sind,
dadurch gekennzeichnet,
daß drei der insgesamt sechs äußeren Gelenke (8a, 8b, 8e, 9a, 9b, 9e) der beiden Lemniskatenlenkergetriebe (6, 7) an dem einen und drei an dem anderen der zu führenden Elemente (1, 2) angeordnet sind und daß die beiden mit den inneren Gelenken (8c, 8d, 9c, 9d) versehenen Lenker (6c, 7c) etwa parallel zueinander verlaufen.Guide system for the forced guidance of two mutually movable elements, consisting of two lemniscate link gears running parallel to each other with their swivel planes, each with three links, which are connected to each other by two inner joints and to the elements to be guided by three outer joints.
characterized by
that three of the total of six outer joints (8a, 8b, 8e, 9a, 9b, 9e) of the two lemniscate link gears (6, 7) are arranged on one and three on the other of the elements (1, 2) to be guided and that the two links (8c, 8d, 9c, 9d) provided with the inner joints (6c, 7c) run approximately parallel to each other.
EP88114250A 1987-09-04 1988-09-01 Guiding system for the forced guiding of elements movable in respect to each other Withdrawn EP0306015A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3729607 1987-09-04
DE19873729607 DE3729607C1 (en) 1987-09-04 1987-09-04 Guide system for the positive guidance of two mutually movable elements

Publications (1)

Publication Number Publication Date
EP0306015A1 true EP0306015A1 (en) 1989-03-08

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EP88114250A Withdrawn EP0306015A1 (en) 1987-09-04 1988-09-01 Guiding system for the forced guiding of elements movable in respect to each other

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EP (1) EP0306015A1 (en)
DE (1) DE3729607C1 (en)
WO (1) WO1989001910A1 (en)

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CN110526155A (en) * 2019-08-30 2019-12-03 冯周琳 A kind of lifting device for road electromechanics
CN111734464A (en) * 2020-06-16 2020-10-02 中煤科工开采研究院有限公司 Five-connecting-rod hydraulic support capable of achieving posture self-adaptive control by controlling state of stabilizing mechanism

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DE102008004918A1 (en) 2008-01-18 2009-07-30 Hans Lachner lifting device
CN102556889B (en) * 2011-12-11 2014-04-02 富泰华精密电子（郑州）有限公司 Lifting mechanism with connecting rod
CN105953046A (en) * 2016-06-20 2016-09-21 无锡虹业自动化工程有限公司 Elevating type SVC device

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DE1163515B (en) * 1959-12-30 1964-02-20 Northrop Corp Mobile lifting device
DE2832393A1 (en) * 1978-07-24 1980-02-07 Unterholzner Fahrzeugfab Variable suspension for low loader - has axle on guided subframe linked to chassis by pneumatic ram
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US4682750A (en) * 1986-09-26 1987-07-28 Eidos Corporation Low profile extensible support platform

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Publication number Priority date Publication date Assignee Title
CN102556888A (en) * 2011-12-10 2012-07-11 富泰华精密电子（郑州）有限公司 Lifting mechanism
CN102556888B (en) * 2011-12-10 2014-04-02 富泰华精密电子（郑州）有限公司 Lifting mechanism
CN110526155A (en) * 2019-08-30 2019-12-03 冯周琳 A kind of lifting device for road electromechanics
CN111734464A (en) * 2020-06-16 2020-10-02 中煤科工开采研究院有限公司 Five-connecting-rod hydraulic support capable of achieving posture self-adaptive control by controlling state of stabilizing mechanism

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WO1989001910A1 (en) 1989-03-09
DE3729607C1 (en) 1989-01-05

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