EP0291700B1 - Cranked material hoist with a two-direction drive for the hoisted truck - Google Patents

Cranked material hoist with a two-direction drive for the hoisted truck Download PDF

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Publication number
EP0291700B1
EP0291700B1 EP88106123A EP88106123A EP0291700B1 EP 0291700 B1 EP0291700 B1 EP 0291700B1 EP 88106123 A EP88106123 A EP 88106123A EP 88106123 A EP88106123 A EP 88106123A EP 0291700 B1 EP0291700 B1 EP 0291700B1
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EP
European Patent Office
Prior art keywords
winch
motor
return
load
elevator according
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EP88106123A
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German (de)
French (fr)
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EP0291700A1 (en
Inventor
Albert Böcker
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Albert Boecker GmbH and Co KG
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Albert Boecker GmbH and Co KG
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Priority to AT88106123T priority Critical patent/ATE63889T1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/04—Control systems without regulation, i.e. without retroactive action hydraulic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B66B9/187—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure with a liftway specially adapted for temporary connection to a building or other structure

Definitions

  • the invention relates to an inclined elevator, which has a plurality of guide rails for a cable-drawn carriage guided thereon, with a kink piece arranged between two guide rails in such a way that the guide rails arranged on both sides of the kink piece run on opposite roof sides of a building, with the load winch cable from the load winch over one the first guide rail (rail 1) arranged guide roller is guided back to the carriage.
  • inclined elevators which have guide rails on which a cable-drawn load-carrying means (slide) is guided. This sled is lowered to the floor area, for example there loaded with roof tiles so that it can be moved over the eaves to the area of the roof ridge.
  • inclined elevators of this type are provided with an elbow.
  • Inclined lifts of the type commonly used in practice are able to bring the material (roof tiles) into the area of the roof ridges.
  • material hereinafter called “roofing trade)
  • the object of the invention is therefore to find a solution in which a controlled transfer of the sled over the ridge to the other side of the roof is possible, in particular at the moment of the sled's transition from one roof side to the other slack rope being avoided, wherein in For example, the speed of the sledge is maintained even when driving downhill on the opposite side of the roof despite considerable loading.
  • the operation should be extremely simple, i.e. there should be no change to the pulling point on the sled, rather the operator should be able to operate the operating lever for opening and lowering in the same way as is known from known inclined lifts (which only drive on one roof side).
  • the invention solves the stated problem by the teaching of claim 1.
  • the return winch additionally arranged hereafter can practically correspond in construction to the usual load winch.
  • the decisive factor is the hydraulic coupling between the load winch motor and the return winch motor in such a way that one of the two motors is pressurized via the pressure oil line (e.g. at 120 bar), while the other motor turns freely in the return line _ but throttled in such a way that no slack rope can occur. For example, if you consider that the load winch motor carries the load on one side of the Pulling the roof upwards, the return winch motor, which is throttled in return, will keep the return winch rope taut.
  • the load winch motor Since the load winch motor is extremely stressed, a certain slip in the motor and pump (leakage oil losses) cannot be avoided. After the roof ridges have been exceeded, the load winch motor continues to move in the "downward" direction. In addition, the sled strives to descend increasingly faster due to the weight of the load. This downward movement is slowed down by the throttled circulation of the return winch motor which works as a pump; since at the same time the load winch motor is considerably relieved, it turns faster due to the lack of slippage, so that, as practice has shown, no slack rope is formed in the load winch rope even after the roof is exceeded. As a result, the loaded sledge travels on the opposite side of the roof at a slightly higher speed.
  • An advantageous embodiment of the line course of the hydraulic circuit is characterized by claim 4, wherein a 4/3-way valve is used as the control slide and wherein the switching positions a and c alternately both motors can be pressurized or switched to the unpressurized circulation, the unpressurized circulation being throttled by the assignment of a lowering brake valve on the output side of the motor working as a pump.
  • Claim 9 has an embodiment of a partial feature of claim 1 to the content.
  • modern inclined elevators in the area of the lower end of the last (lowermost) guide rail have extensions that slide on this guide rail and can be lowered down to approximately the bottom area. This has the advantage that to improve the loading position, the carriage can be lowered to close to the ground. To be able to guarantee this, i.e. In order to be able to drive over the deflection roller of the return rope as far as possible, the return rope is fastened to the end of the slide facing away from the free end of the first guide rail (rail 1) and the deflection roller for the return rope is arranged below the load winch.
  • claim 11 relates to the course of the load winch rope.
  • the load winch cable is then guided to the end of the carriage facing the load winch and attached there.
  • Claims 13 and 14 deal with the arrangement of the deflection roller for the return cable below the load winch; since the return cable must be guided from the winch arranged below the guide rails over the deflection roller to the slide running above the guide rail, a deflection roller of extraordinarily large diameter would have to be used; here it is proposed to provide two deflecting rollers of relatively small diameter in a side-by-side arrangement instead.
  • Fig. 1 denotes an inclined elevator, which consists of several guide rails 7, which are supported on a chassis 5 via a cylinder 6 with variable inclination. It can be seen that the telescopic guide rails 7 are supported on a roof side 4 of a building 2. In the area of the roof ridge 3, a buckling piece 10 is provided, which can be adjusted by means of a winch that can be operated from the ground or can be designed as a rigid buckling piece.
  • An additional with 7 'designated guide rail lies on the opposite roof side 4'. It can represent the first (upper) telescopic guide rail of the inclined elevator and can be bent by means of a winch that can be operated from the ground; however, it can also be an extension piece that can be attached by hand or pulled out of the second guide rail.
  • a carriage 8 On the guide rails 7, a carriage 8 is guided (see also FIG. 3) which, by means of the load winch 12, over the Load winch rope 11 is movable on the guide rails 7.
  • the carriage is supported with upper rollers 33 on the upper profile of the guide rail 7; In addition, lower rollers, not shown, are provided which secure the carriage 8 against lifting.
  • the telescopic rail drive for telescoping the individual guide rails 7 is indicated in FIG. 2; the cable guide for the telescopic rail drive was not drawn in for the sake of clarity.
  • the load winch motor 16 with the load winch 12 is arranged at the lower end of the last (lowermost) guide rail 7.
  • the load winch cable 11 runs from the load winch 12 via rollers (not shown) arranged in the kink 10 on the opposite roof side 4 'to a deflection roller 13 and from there in the direction of arrow 35 via a pulley 28 to the articulation point 36 on the carriage 8.
  • 3 is in the area of the left side of the carriage 8 in the image plane on the axis of the eccentric brake 29.
  • a return winch 14 arranged above the load winch 12 with an associated return winch motor 17 serves to drive the return rope 15, which is guided by the return winch 14 to the lower end of the last (lowermost) telescopic section 7.
  • the return rope 15 overflows here a deflection roller 31 designed as a double roller, which is arranged below the load winch 12.
  • the return cable is guided from the deflection roller 31 in the direction of arrow 37 to the carriage 8, passes underneath it and is fastened to the carriage at the fixed point 38 in the end on the right in the image plane of FIG. 3.
  • extension rails 34 are provided in a known manner. With the arrangement of the deflection roller 31 below the load winch 16 in connection with the fixed point 38 at the upper end of the slide 8 for the return rope 15, it is achieved that the slide 8 can travel over the extension rails 34 to the ground directly.
  • the gear pump designated by 39 conveys the pressure fluid (for example with a pressure of 120 bar) from the tank 22 to the control spools 18, 19 and 20 which are designed as 4/3-way valves and which are combined in a control block 45 .
  • the control slide 18 serves to act on the hydraulic motor 16 for the load winch 12; the control slide 19 of the application of the motor 32 for the telescopic rail drive (for the retraction and extension of the guide rails 7, 7 ') and the control slide 20 of the application of the cylinder 6 for lifting and lowering the entire telescopic boom.
  • the gear pump 39 delivers into the tank, i.e. no consumer is charged.
  • the hydraulic motor 17 is connected on the input side via the line 23 to the return line 44 and on the output side via the line 24 in flow through the control slide 18 to the line 21 leading to the return line.
  • the hydraulic motor 16 is thus loaded; however, is subject to a certain amount of slip due to the load.
  • the now carried load winch motor 15 turns freely in the return; it is connected on the input side via line 21 and on the output side via lowering brake valve 25 and line 43 while flowing through control spool 18 to line 21 or tank 22.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Types And Forms Of Lifts (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Flexible Shafts (AREA)

Abstract

The invention relates to an inclined hoist with a truck which is guided on guide rails of the hoist and can be moved to the opposite roof side preferably via a cranked piece arranged in the ridge area of a building. The essence of the invention consists in the fact that a return winch is allocated to the material winch, the hydraulic control being made in such a way that the motor to which pressure fluid is admitted in each case draws the other respective motor with it, which turns off in a throttled manner in the closed circuit. In this arrangement, the circuit is made in such a way that only one spool valve is required. <IMAGE>

Description

Die Erfindung betrifft einen Schrägaufzug, welcher mehrere Führungsschienen für einen daran geführten, seilgezogenen Schlitten aufweist, mit einem zwischen zwei Führungsschienen derart angeordneten Knickstück, daß die beidseits des Knickstückes angeordneten Führungsschienen auf gegenüberliegenden Dachseiten eines Gebäudes verlaufen, wobei das Lastwindenseil von der Lastwinde über eine an der ersten Führungsschiene (Schiene 1) angeordnete Umlenkrolle zurück zum Schlitten geführt ist.The invention relates to an inclined elevator, which has a plurality of guide rails for a cable-drawn carriage guided thereon, with a kink piece arranged between two guide rails in such a way that the guide rails arranged on both sides of the kink piece run on opposite roof sides of a building, with the load winch cable from the load winch over one the first guide rail (rail 1) arranged guide roller is guided back to the carriage.

Es sind sogenannte Schrägaufzüge bekannt, welche Führungsschienen aufweisen, an denen ein seilgezogenes Lastaufnahmemittel (Schlitten) geführt ist. Dieser Schlitten wird bis zum Bodenbereich abgelassen, dort beispielsweise mit Dachziegeln beladen, so daß er über die Traufe bis in den Bereich des Dachfirstes verfahren werden kann. Damit die Führungsschienen möglichst parallel zur Dachneigung verlaufen können, sind derartige Schrägaufzüge mit einem Knickstück versehen.So-called inclined elevators are known, which have guide rails on which a cable-drawn load-carrying means (slide) is guided. This sled is lowered to the floor area, for example there loaded with roof tiles so that it can be moved over the eaves to the area of the roof ridge. To ensure that the guide rails can run as parallel as possible to the roof pitch, inclined elevators of this type are provided with an elbow.

Schrägaufzüge der in der Praxis gebräuchlichen Bauart sind in der Lage, das Material (Dachziegel) bis in den Bereich der Dachfirste zu verbringen. In der einschlägigen Industrie (Dachdeckerhandwerk) besteht seit langem der Wunsch, mit einem entsprechend beladenen Schlitten den Dachfirst überfahren zu können, so daß die gegenüberliegende Dachseite ebenfalls _ in diesem Fall mit Dachziegeln _ beschickt werden kann.Inclined lifts of the type commonly used in practice are able to bring the material (roof tiles) into the area of the roof ridges. In the relevant industry (roofing trade) there has long been a desire to be able to drive over the roof ridge with an appropriately loaded sled, so that the opposite side of the roof can also be _ in this case loaded with roof tiles _.

Hier besteht jedoch eine besondere Schwierigkeit in der Seilführung. Man hat deshalb bereits vorgeschlagen, das von der Lastwinde kommende Lastseil bis zu einer Umlenkrolle unmittelbar über den Dachfirst zu führen und dabei den Zugpunkt am Schlitten so anzuschlagen, daß der Schlitten zwangsläufig auf die andere Dachseite hinübergezogen wird, wo er dann infolge seines Eigengewichtes abwärts abrollen kann. Beim Rückholen des Schlittens muß vorher der Zugpunkt am Schlitten verlegt werden, um den Firstbereich unter der Zugwirkung des Lastwindenseiles überfahren zu können. Hierbei ist auch eine automatische Verlegung des Zugpunktes vorgeschlagen worden; die bekannte Lösung hat sich in der Praxis insbesondere wegen des komplizierten Aufbaus und der Schwierigkeit eines gesteuerten Ablassens auf die gegenüberliegende Dachseite nicht einführen können (DE-OS 20 53 499).Here, however, there is a particular difficulty in guiding the rope. It has therefore already been proposed to guide the load rope coming from the load winch to a deflection roller directly above the roof ridge and to attach the pull point to the sled so that the sled is inevitably pulled over to the other side of the roof, where it then rolls downwards due to its own weight can. When retrieving the sled, the pull point on the sled must be relocated in order to be able to drive over the ridge area under the pulling action of the winch rope. An automatic relocation of the pull point has also been proposed; the known solution has not been able to be implemented in practice, in particular because of the complicated structure and the difficulty of controlled draining to the opposite roof side (DE-OS 20 53 499).

In Ausgestaltung des vorbeschriebenen Vorschlages ist weiter vorgeschlagen worden, den Schlitten aus zwei zueinander teleskopierbaren Bauteilen herzustellen, die jeder auf einem eigenen Rollensatz laufen, wobei sich die beiden Schlitten beim Ueberfahren des Dachfirstes in ihrem Abstand zueinander so verändern, daß der Schwerpunkt des Schlittens jeweils von einer Dachseite auf die andere verlegt wird. Auch hierzu ist ein besonderes Gestänge erforderlich, an dem das Lastwindenseil angreift und mit dessen Hilfe die Schwerpunktverlagerung des Schlittens erfolgen soll. Auch diese Lösung hat sich in der Praxis infolge des komplizierten Aufbaus und der nur über die Bremse zu steuernden Absenkbewegung auf der gegenüberliegenden Dachseite nicht durchsetzen können (DE-OS 21 01 256).In the form of the above-described proposal is further It has been proposed to produce the slide from two mutually telescopic components, each running on its own set of rollers, the two slides changing in their distance from each other so that the center of gravity of the slide is shifted from one roof side to the other . A special linkage is also required for this, on which the load winch rope engages and with the help of which the carriage's center of gravity should be shifted. This solution too has not been successful in practice due to the complicated structure and the lowering movement which can only be controlled by the brake on the opposite side of the roof (DE-OS 21 01 256).

Schließlich ist ein Lastenaufzug mit Doppelrichtungsantrieb vorgeschlagen worden, bei dem ein vom Lastwindenmotor bis zur Umlenkrolle am freien Ende der ersten (oberen) Führungsschiene geführtes und dort umgelenktes, in sich geschlossenes Seil Verwendung findet. Bei einer derartigen Seilführung besteht die Schwierigkeit, das zwangsläufig entstehende Schlaffseil zu verhindern, welches sich an der jeweils unbelasteten Umkehrrolle bildet. Man hat bereits versucht, Spannrollen einzusetzen oder die vorgenannten Umkehrrollen als gleitende Scheiben (nach Art bekannter Spannantriebe) auszubilden. Derartige Lösunen haben ebenfalls nicht befriedigt und sich in der Praxis nicht durchsetzen können (vorläufig erteiltes europäisches Patent 01 45 627). Die besondere Problematik mit Bezug auf die vorliegende Erfindung liegt darin, daß beim Ueberfahren der Dachfirste die ziehende Winde die Last auf der gegenüberliegenden Dachseite herunterzieht, wobei zu dieser Zugkraft hinzuzurechnen ist, daß der Schlitten ohnehin bemüht ist, auf der gegenüberliegenden Dachseite mit zunehmender Geschwindigkeit abwärts zu rollen.Finally, a freight elevator with double-directional propulsion has been proposed, in which a self-contained rope is used which is guided from the load winch motor to the deflection roller at the free end of the first (upper) guide rail and is deflected there. With such a rope guide, there is the difficulty in preventing the inevitable slack rope that forms on the respective unloaded reversing roller. Attempts have already been made to use tensioning rollers or to design the aforementioned reversing rollers as sliding disks (in the manner of known tensioning drives). Such solutions were also unsatisfactory and could not prevail in practice (provisionally granted European patent 01 45 627). The particular problem with respect to the present invention lies in the fact that when the roof ridges are passed over, the pulling winch pulls the load down on the opposite side of the roof increasing speed to roll down.

Aufgabe der Erfindung ist es daher, eine Lösung zu finden, bei der ein kontrolliertes Ueberleiten des Schlittens über den Dachfirst auf die andere Seite des Daches möglich ist, wobei insbesondere im Augenblick des Ueberganges des Schlittens von einer Dachseite zur anderen Schlaffseil vermieden wird, wobei in etwa auch bei der Abwärtsfahrt auf der gegenüberliegenden Dachseite trotz erheblicher Beladung die Geschwindigkeit des Schlittens etwa beibehalten wird. Weiter soll die Bedienung äußerst einfach sein, d.h. es soll auf eine Aenderung des Zugpunktes am Schlitten verzichtet werden, vielmehr soll der Bedienungsmann vom Boden her den Bedienungshebel für das Auffahren und Abfahren in der gleichen Weise betätigen können, wie er es von bekannten Schrägaufzügen (die nur eine Dachseite befahren) gewohnt ist.The object of the invention is therefore to find a solution in which a controlled transfer of the sled over the ridge to the other side of the roof is possible, in particular at the moment of the sled's transition from one roof side to the other slack rope being avoided, wherein in For example, the speed of the sledge is maintained even when driving downhill on the opposite side of the roof despite considerable loading. Furthermore, the operation should be extremely simple, i.e. there should be no change to the pulling point on the sled, rather the operator should be able to operate the operating lever for opening and lowering in the same way as is known from known inclined lifts (which only drive on one roof side).

Auf jegliche Vorrichtung am Schlitten zur _ ggf. automatischen _ Verlegung des Zugpunktes soll verzichtet werden.Any device on the carriage for _ possibly automatic _ relocation of the pull point should be avoided.

Die Erfindung löst die gestellte Aufgabe durch die Lehre nach Anspruch 1. Die hiernach zusätzlich angeordnete Rückholwinde kann in ihrer Bauart praktisch der gebräuchlichen Lastwinde entsprechen. Entscheidend ist die hydraulische Kopplung zwischen Lastwindenmotor und Rückholwindenmotor derart, daß jeweils einer der beiden Motoren über die Druckölleitung beaufschlagt wird (z.B. mit 120 bar), während der andere Motor frei im Rücklauf abdreht _ allerdings derart gedrosselt, daß kein Schlaffseil entstehen kann. Geht man beispielsweise von der Ueberlegung aus, daß der Lastwindenmotor die Last auf einer Seite des Daches aufwärts zieht, wird der im Rücklauf gedrosselt abdrehende Rückholwindenmotor das Rückholwindenseil straff halten. Da der Lastwindenmotor hierbei außerordentlich belastet ist, ist ein gewisser Schlupf in Motor und Pumpe (Leckölverluste) nicht zu vermeiden. Nach Ueberschreiten der Dachfirste zieht der Lastwindenmotor weiter in Richtung "Abwärtsfahren", zusätzlich ist der Schlitten bemüht, in Folge des Gewichtes der Last zunehmend schneller abwärts zu fahren. Dieses Abwärtsfahren wird durch den gedrosselten Umlauf des als Pumpe arbeitenden Rückholwindenmotors gebremst; da gleichzeitig der Lastwindenmotor erheblich entlastet ist, dreht er in Folge des fehlenden Schlupfes schneller ab, so daß, wie die Praxis gezeigt hat, auch unmittelbar nach Ueberschreiten der Firste kein Schlaffseil im Lastwindenseil entsteht. Im Ergebnis fährt der belastete Schlitten auf der abgewandten Dachseite mit geringfügig erhöhter Geschwindigkeit ab.The invention solves the stated problem by the teaching of claim 1. The return winch additionally arranged hereafter can practically correspond in construction to the usual load winch. The decisive factor is the hydraulic coupling between the load winch motor and the return winch motor in such a way that one of the two motors is pressurized via the pressure oil line (e.g. at 120 bar), while the other motor turns freely in the return line _ but throttled in such a way that no slack rope can occur. For example, if you consider that the load winch motor carries the load on one side of the Pulling the roof upwards, the return winch motor, which is throttled in return, will keep the return winch rope taut. Since the load winch motor is extremely stressed, a certain slip in the motor and pump (leakage oil losses) cannot be avoided. After the roof ridges have been exceeded, the load winch motor continues to move in the "downward" direction. In addition, the sled strives to descend increasingly faster due to the weight of the load. This downward movement is slowed down by the throttled circulation of the return winch motor which works as a pump; since at the same time the load winch motor is considerably relieved, it turns faster due to the lack of slippage, so that, as practice has shown, no slack rope is formed in the load winch rope even after the roof is exceeded. As a result, the loaded sledge travels on the opposite side of the roof at a slightly higher speed.

Merkmale von Ausführungsarten der Erfindung sind durch die Unteransprüche gekennzeichnet.Features of embodiments of the invention are characterized by the subclaims.

Da gemäß Anspruch 2 nur ein Steuerschieber für Lastwindenmotor und Rückholwindenmotor verwendet wird (grundsätzlich wären auch zwei Steuerschieber möglich), wird die Bedienung außerordentlich vereinfacht. Der Bedienungsmann betätigt den als 4/3-Wegeventil ausgebildeten Steuerschieber mittels eines einzigen Bedienungshebels so, als sei der Schrägaufzug nur an einer Dachseite angelegt.Since only one spool for load winch motor and return winch motor is used according to claim 2 (in principle, two spool valves would also be possible), the operation is extremely simplified. The operator actuates the control slide, which is designed as a 4/3-way valve, by means of a single operating lever as if the inclined elevator was only applied to one roof side.

Eine vorteilhafte Ausgestaltung des Leitungsverlaufes der hydraulischen Schaltung ist durch Anspruch 4 gekennzeichnet, wobei als Steuerschieber ein 4/3-Wegeventil Verwendung findet und wobei durch die Schaltstellungen a und c wechselweise beide Motoren beaufschlagt bzw. in den drucklosen Umlauf geschaltet werden können, wobei der drucklose Umlauf durch die Zuordnung eines Senk-Bremsventils jeweils auf der Ausgangsseite des als Pumpe arbeitenden Motors gedrosselt wird.An advantageous embodiment of the line course of the hydraulic circuit is characterized by claim 4, wherein a 4/3-way valve is used as the control slide and wherein the switching positions a and c alternately both motors can be pressurized or switched to the unpressurized circulation, the unpressurized circulation being throttled by the assignment of a lowering brake valve on the output side of the motor working as a pump.

Es ist weiter von Vorteil, wenn gemäß Anspruch 7 die Bremslüftzylinder beider Motoren (Lastwindenmotor und Rückholwindenmotor) an einer gemeinsamen Bremslüftleitung angeschlossen sind; dies hat den Vorteil, daß bei Beaufschlagung eines der beiden Motoren beide Bremsen gleichzeitig gelüftet werden, so daß ein Losbrechmoment an den Bremsen verhindert wird.It is also advantageous if the brake release cylinders of both motors (load winch motor and return winch motor) are connected to a common brake release line; This has the advantage that when one of the two motors is acted on, both brakes are released simultaneously, so that a breakaway torque on the brakes is prevented.

Anspruch 9 hat eine Ausgestaltung eines Teilmerkmales des Anspruches 1 zum Inhalt. Bekanntlich besitzen moderne Schrägaufzüge im Bereich des unteren Endes der letzten (untersten) Führungsschiene auf dieser Führungsschiene gleitende Verlängerungen, die bis etwa in den Bodenbereich herabgelassen werden können. Dies hat den Vorteil, daß zur Verbesserung der Beladeposition der Schlitten bis nahe an den Boden heruntergefahren werden kann. Um dies gewährleisten zu können, d.h. um die Umlenkrolle des Rückholseiles möglichst weit überfahren zu können, ist gemäß Anspruch 9 das Rückholseil an dem dem freien Ende der ersten Führungsschiene (Schiene 1) abgewandten Ende des Schlittens befestigt und die Umlenkrolle für das Rückholseil unterhalb der Lastwinde angeordnet.Claim 9 has an embodiment of a partial feature of claim 1 to the content. As is known, modern inclined elevators in the area of the lower end of the last (lowermost) guide rail have extensions that slide on this guide rail and can be lowered down to approximately the bottom area. This has the advantage that to improve the loading position, the carriage can be lowered to close to the ground. To be able to guarantee this, i.e. In order to be able to drive over the deflection roller of the return rope as far as possible, the return rope is fastened to the end of the slide facing away from the free end of the first guide rail (rail 1) and the deflection roller for the return rope is arranged below the load winch.

Während Anspruch 10 die erfindungsgemäße Anordnung der Rückholwinde unter Schutz stellt, betrifft Anspruch 11 den Verlauf des Lastwindenseiles. Das Lastwindenseil ist hiernach zu dem der Lastwinde zugekehrten Ende des Schlittens geführt und dort befestigt.While claim 10 protects the arrangement of the return winch according to the invention, claim 11 relates to the course of the load winch rope. The load winch cable is then guided to the end of the carriage facing the load winch and attached there.

Die Ansprüche 13 und 14 befassen sich mit der Anordnung der Umlenkrolle für das Rückholseil unterhalb der Lastwinde; da das Rückholseil von der unterhalb der Führungsschienen angeordneten Winde über die Umlenkrolle zum oberhalb der Führungsschiene verlaufenden Schlitten geführt werden muß, müßte eine Umlenkrolle von außerordentlich großem Durchmesser Verwendung finden; hier wird vorgeschlagen, statt dessen zwei Umlenkrollen relativ kleinen Durchmessers in Nebeneinanderanordnung vorzusehen.Claims 13 and 14 deal with the arrangement of the deflection roller for the return cable below the load winch; since the return cable must be guided from the winch arranged below the guide rails over the deflection roller to the slide running above the guide rail, a deflection roller of extraordinarily large diameter would have to be used; here it is proposed to provide two deflecting rollers of relatively small diameter in a side-by-side arrangement instead.

Der besondere Vorteil der Erfindung wird darin gesehen, daß durch Zuordnung nur einer handelsüblichen Winde mit entsprechender Seilführung und weiter bei Zuordnung der erfindungsgemäßen hydraulischen Leitungsführung unter Verwendung eines für beide Motoren gemeinsamen Steuerschiebers eine außerordentlich einfache Bedienung bei zuverlässiger Schlittenführung beim Auf- und Abfahren auf beiden Dachseiten erreicht wird.The particular advantage of the invention is seen in the fact that by assigning only a commercially available winch with appropriate cable routing and further by assigning the hydraulic line routing according to the invention using a control slide common to both motors, extremely simple operation with reliable carriage guidance when moving up and down on both roof sides is achieved.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispieles näher erläutert.The invention is explained in more detail below using an exemplary embodiment.

Es zeigen:

  • Fig. 1 eine Seitenansicht eines Schrägaufzuges
  • Fig. 2 eine Draufsicht nach Fig. 1
  • Fig. 3 in perspektivischer Darstellung die Seilführung
  • Fig. 4 den hydraulischen Schaltplan
Show it:
  • Fig. 1 is a side view of an inclined elevator
  • 2 is a plan view of FIG .. 1
  • Fig. 3 is a perspective view of the rope guide
  • Fig. 4 shows the hydraulic circuit diagram

In der Fig. 1 ist mit 1 ein Schrägaufzug bezeichnet, welcher aus mehreren Führungsschienen 7 besteht, die über einen Zylinder 6 neigungsveränderlich auf einem Fahrgestell 5 abgestützt sind. Es ist ersichtlich, daß die teleskopierbaren Führungsschienen 7 auf einer Dachseite 4 eines Gebäudes 2 abgestützt sind. Im Bereich des Dachfirstes 3 ist eine Knickstück 10 vorgesehen, welches mittels einer vom Boden bedienbaren Winde verstellbar sein oder als starres Knickstück ausgebildet sein kann.In Fig. 1, 1 denotes an inclined elevator, which consists of several guide rails 7, which are supported on a chassis 5 via a cylinder 6 with variable inclination. It can be seen that the telescopic guide rails 7 are supported on a roof side 4 of a building 2. In the area of the roof ridge 3, a buckling piece 10 is provided, which can be adjusted by means of a winch that can be operated from the ground or can be designed as a rigid buckling piece.

Eine zusätzlich mit 7′ bezeichnete Führungsschiene liegt der gegenüberliegenden Dachseite 4′ auf. Sie kann die erste (obere) teleskopierbare Führungsschiene des Schrägaufzuges darstellen und mittels einer vom Boden bedienbaren Winde abknickbar sein; sie kann jedoch auch ein von Hand ansetzbares bzw. aus der zweiten Führungsschiene ausziehbares Verlängerungsstück darstellen.An additional with 7 'designated guide rail lies on the opposite roof side 4'. It can represent the first (upper) telescopic guide rail of the inclined elevator and can be bent by means of a winch that can be operated from the ground; however, it can also be an extension piece that can be attached by hand or pulled out of the second guide rail.

Auf den Führungsschienen 7 ist ein Schlitten 8 geführt (s. auch Fig. 3) welcher mittels der Lastwinde 12 über das Lastwindenseil 11 an den Führungsschienen 7 verfahrbar ist. Der Schlitten stützt sich mit Oberrollen 33 auf dem Oberprofil der Führungsschiene 7 ab; zusätzlich sind nicht dargestellte Unterrollen vorgesehen, die den Schlitten 8 gegen Abheben sichern. Mit 32 ist in der Fig. 2 andeutungsweise der Teleskopschienenantrieb zum Teleskopieren der einzelnen Führungsschienen 7 dargestellt; die Seilführung für den Teleskopschienenantrieb wurde der Uebersichtlichkeit halber nicht eingezeichnet.On the guide rails 7, a carriage 8 is guided (see also FIG. 3) which, by means of the load winch 12, over the Load winch rope 11 is movable on the guide rails 7. The carriage is supported with upper rollers 33 on the upper profile of the guide rail 7; In addition, lower rollers, not shown, are provided which secure the carriage 8 against lifting. With 32, the telescopic rail drive for telescoping the individual guide rails 7 is indicated in FIG. 2; the cable guide for the telescopic rail drive was not drawn in for the sake of clarity.

Es ist erkennbar, daß am unteren Ende der letzten (untersten) Führungsschiene 7 der Lastwindenmotor 16 mit der Lastwinde 12 angeordnet ist. Das Lastwindenseil 11 verläuft von der Lastwinde 12 über nicht dargestellte im Knickstück 10 angeordnete Rollen auf die gegenüberliegende Dachseite 4′ zu einer Umlenkrolle 13 und von dort in Pfeilrichtung 35 über einen Flaschenzug 28 zum Anlenkpunkt 36 am Schlitten 8 zurück. Der Anlenkpunkt 36 befindet sich gemäß Fig. 3 im Bereich der in der Bildebene linken Seite des Schlittens 8 auf der Achse der Exzenterbremse 29.It can be seen that the load winch motor 16 with the load winch 12 is arranged at the lower end of the last (lowermost) guide rail 7. The load winch cable 11 runs from the load winch 12 via rollers (not shown) arranged in the kink 10 on the opposite roof side 4 'to a deflection roller 13 and from there in the direction of arrow 35 via a pulley 28 to the articulation point 36 on the carriage 8. 3 is in the area of the left side of the carriage 8 in the image plane on the axis of the eccentric brake 29.

Eine oberhalb der Lastwinde 12 angeordnete Rückholwinde 14 mit zugeordnetem Rückholwindenmotor 17 dient dem Antrieb des Rückholseiles 15, welches von der Rückholwinde 14 zum unteren Ende des letzten (untersten) Teleskopschusses 7 geführt ist. Das Rückholseil 15 überläuft hier eine als Doppelrolle ausgebildete Umlenkrolle 31, welche unterhalb der Lastwinde 12 angeordnet ist. Das Rückholseil ist von der Umlenkrolle 31 in Pfeilrichtung 37 zum Schlitten 8 geführt, unterläuft diesen und ist im Festpunkt 38 in dem in der Bildebene der Fig. 3 rechten Ende am Schlitten befestigt.A return winch 14 arranged above the load winch 12 with an associated return winch motor 17 serves to drive the return rope 15, which is guided by the return winch 14 to the lower end of the last (lowermost) telescopic section 7. The return rope 15 overflows here a deflection roller 31 designed as a double roller, which is arranged below the load winch 12. The return cable is guided from the deflection roller 31 in the direction of arrow 37 to the carriage 8, passes underneath it and is fastened to the carriage at the fixed point 38 in the end on the right in the image plane of FIG. 3.

Um mit dem Schlitten 8, wie in der Fig. 1 und 2 dargestellt, bis möglichst in den Bodenbereich fahren zu können, sind in bekannter Weise Verlängerungsschienen 34 vorgesehen. Mit der Anordnung der Umlenkrolle 31 unterhalb der Lastwinde 16 in Verbindung mit dem Festpunkt 38 am oberen Ende des Schlittens 8 für das Rückholseil 15 wird erreicht, daß der Schlitten 8 über die Verlängerungs- schienen 34 bis unmittelbar zum Boden fahren kann.In order to be able to travel as far as possible into the floor area with the carriage 8, as shown in FIGS. 1 and 2, extension rails 34 are provided in a known manner. With the arrangement of the deflection roller 31 below the load winch 16 in connection with the fixed point 38 at the upper end of the slide 8 for the return rope 15, it is achieved that the slide 8 can travel over the extension rails 34 to the ground directly.

Die Erfindung wird nachfolgend anhand eines hydraulischen Schaltplanes näher erläutert.The invention is explained in more detail below with the aid of a hydraulic circuit diagram.

Die mit 39 bezeichnete Zahnradpumpe fördert aus dem Tank 22 über die Leitung 41 die Druckflüssigkeit (beispielsweise mit einem Druck von 120 bar) zu den als 4/3-Wege-Ventilen ausgebildeten Steuerschiebern 18, 19 und 20, welche in einem Steuerblock 45 zusammengefaßt sind.The gear pump designated by 39 conveys the pressure fluid (for example with a pressure of 120 bar) from the tank 22 to the control spools 18, 19 and 20 which are designed as 4/3-way valves and which are combined in a control block 45 .

Der Steuerschieber 18 dient der Beaufschlagung des hydraulischen Motors 16 für die Lastwinde 12; der Steuerschieber 19 der Beaufschlagung des Motors 32 für den Teleskopschienenantrieb (für das Ein- und Ausfahren der Führungsschienen 7, 7′) und der Steuerschieber 20 der Beaufschlagung des Zylinders 6 für das Heben und Senken des gesamten Teleskopauslegers.The control slide 18 serves to act on the hydraulic motor 16 for the load winch 12; the control slide 19 of the application of the motor 32 for the telescopic rail drive (for the retraction and extension of the guide rails 7, 7 ') and the control slide 20 of the application of the cylinder 6 for lifting and lowering the entire telescopic boom.

In der dargestellten Schaltstellung b der Steuerschieber fördert die Zahnradpumpe 39 in den Tank, d.h. es wird kein Verbraucher beaufschlagt.In the illustrated switching position b of the spool, the gear pump 39 delivers into the tank, i.e. no consumer is charged.

Wird der Steuerschieber 18 in die Schaltstellung a verbracht, so gelangt die Druckflüssigkeit der Zahnradpumpe 39 über die Leitung 41 und das Rückschlagventil 42 und die Leitung 43 über das Senk-Bremsventil 25 zum Hydraulikmotor 16. Da gleichzeitig in der Leitung 27 Druck ansteht, welcher auf die beiden Bremslüftzylinder 26 der Lastwinde 12 und der Rückholwinde 14 wirkt, kann der Hydraulikmotor 16 die Lastwinde 12 im Sinne von "Auffahren" der Last antreiben.If the control slide 18 is brought into the switching position a, the pressure fluid of the gear pump 39 passes through the line 41 and the check valve 42 and Line 43 via the lowering brake valve 25 to the hydraulic motor 16. Since pressure is simultaneously present in line 27, which acts on the two brake release cylinders 26 of the load winch 12 and the return winch 14, the hydraulic motor 16 can load the winch 12 in the sense of "opening" Drive load.

Gleichzeitig ist in der Schaltstellung a des Steuerschiebers 18 der Hydraulikmotor 17 eingangsseitig über die Leitung 23 an die Rücklaufleitung 44 und ausgangsseitig über die Leitung 24 im Durchfluß durch den Steuerschieber 18 an die zum Rücklauf führende Leitung 21 angeschlossen. Beim Aufziehen des mit beispielsweise Dachziegeln 9 beladenen Schlittens 8 ist somit der Hydraulikmotor 16 belastet; unterliegt allerdings aufgrund der Belastung einem gewissen Schlupf. Der Hydraulikmotor 17 hingegen dreht frei im geschlossenen Kreislauf im Rücklauf ab; da der Rückholmotor als Pumpe arbeitet, wird er vom Lastwindenmotor mitgeschleppt, so daß im Rückholseil kein Schlaffseil entsteht.At the same time, in the switching position a of the control slide 18, the hydraulic motor 17 is connected on the input side via the line 23 to the return line 44 and on the output side via the line 24 in flow through the control slide 18 to the line 21 leading to the return line. When the slide 8 loaded with, for example, roof tiles 9 is pulled up, the hydraulic motor 16 is thus loaded; however, is subject to a certain amount of slip due to the load. The hydraulic motor 17, however, rotates freely in the closed circuit in the return; since the return motor works as a pump, it is dragged along by the load winch motor so that no slack rope is created in the return rope.

Beim Ueberfahren des Dachfirstes wird die Schaltstellung des Steuerschiebers 18 erfindungsgemäß nicht verändert. Der Schlitten wird somit vom Lastwindenmotor 16 abwärts gezogen; gleichzeitig wirkt die Last beschleunigend im Sinne "Abfahren". Da der Lastwindenmotor 16 zwar von der Zahnradpumpe 39 weiter beaufschlagt wird, andererseits jedoch von dem Gewicht der Last entlastet ist, entfällt der durch die Belastung bedingte Schlupf, so daß er nunmehr (begrenzt) schneller abdreht. Der weiterhin frei im Rücklauf abdrehende Rückholwindenmotor wird in seiner Drehzahl jedoch begrenzt durch die Drosselung mittels des Senk-Bremsventiles, so daß unmittelbar nach Ueberschreiten des Dachfirstes die Last kontrolliert abgelassen wird und die Bildung von Schlaffseil am Lastseil verhindert wird.When the roof ridge is passed over, the switching position of the control slide 18 is not changed according to the invention. The sled is thus pulled down by the load winch motor 16; at the same time, the load accelerates in the sense of "moving off". Since the load winch motor 16 is still acted upon by the gear pump 39, but on the other hand is relieved of the weight of the load, the slippage caused by the load is eliminated, so that it now turns (limited) faster. The return winch motor, which continues to rotate freely in the return, is limited in its speed by throttling by means of the lowering brake valve, so that the load is released in a controlled manner immediately after the roof ridge is exceeded and the formation of slack rope on the load rope is prevented.

Bei Umschaltung des Steuerschiebers 18 in die Schaltstellung c vollzieht sich der Ablauf in umgekehrter Reihefolge, d.h. Lastwindenmotor und Rückholwindenmotor sind im wesentlichen in ihrer Funktion gleichzusetzen.When the control spool 18 is switched to the switching position c, the sequence takes place in the reverse order, i.e. The function of the load winch motor and the return winch motor are essentially the same.

In der Schaltstellung c des Steuerschiebers 18 beaufschlagt die von der Zahnradpumpe 39 über die Leitung 41 und das Rückschlagventil 42 zugeführte Druckflüssigkeit die Leitung 24 und treibt den Rückholwindenmotor 17 im freien Durchgang über das Senk-Bremsventil 25 an. Ausgangsseitig wird die Druckflüssigkeit über die Leitung 23 in die Rücklaufleitung 44 geführt.In the switching position c of the control slide 18, the hydraulic fluid supplied by the gear pump 39 via the line 41 and the check valve 42 acts on the line 24 and drives the return winch motor 17 in free passage via the lowering brake valve 25. On the output side, the hydraulic fluid is fed into the return line 44 via the line 23.

Der nunmehr mitgeschleppte Lastwindenmotor 15 dreht frei im Rücklauf ab; er ist eingangsseitig über die Leitung 21 und ausgangsseitig über das Senk-Bremsventil 25 und die Leitung 43 unter Durchfluß durch den Steuerschieber 18 an die Leitung 21 bzw. den Tank 22 angeschlossen.The now carried load winch motor 15 turns freely in the return; it is connected on the input side via line 21 and on the output side via lowering brake valve 25 and line 43 while flowing through control spool 18 to line 21 or tank 22.

Es versteht sich, daß das Ausfahren der Führungsschienen (Teleskopieren) in der aus dem Std. d. T. bekannten Weise mittels der sogenannten "Schlitten-Null-Stellung" vollzogen wird; da der Schlitten am unteren Ende verbleibt, bleibt auch die Rückholwinde 14 in Ruhestellung. Gleiches gilt beim Einfahren der Führungsschienen; hier ist ebenfalls kein Aufwickeln der Rückholwinde 14 erforderlich, da der Schlitten beim Einfahren in seiner untersten Position steht. Die Lastwinde 12 spult infolge der bekannten Schlitten-Null-Stellung das Lastwindenseil 11 automatisch auf.It goes without saying that the extension of the guide rails (telescoping) in the d. T. known manner is carried out by means of the so-called "carriage zero position"; since the carriage remains at the lower end, the return winch 14 also remains in the rest position. The same applies when retracting the guide rails; here, too, it is not necessary to wind up the return winch 14, since the slide is in its lowest position when retracting. The load winch 12 automatically winds up the load winch rope 11 as a result of the known carriage zero position.

BezugszeichenlisteReference symbol list

1 =1 =
SchrägaufzugInclined elevator
2 =2 =
Gebäudebuilding
3 =3 =
DachfirstRidge
4 =4 =
DachseiteRoof side
4′ =4 ′ =
DachseiteRoof side
5 =5 =
Fahrgestellchassis
6 =6 =
Zylindercylinder
7 =7 =
FührungsschieneGuide rail
7′ =7 ′ =
FührungsschieneGuide rail
8 =8 =
Schlittencarriage
9 =9 =
DachziegelRoof tiles
10 =10 =
KnickstückBuckle
11 =11 =
LastwindenseilLoad winch rope
12 =12 =
LastwindeLoad winch
13 =13 =
Umlenkrolle für LastwindenseilDeflection pulley for load winch rope
14 =14 =
RückholwindeReturn winch
15 =15 =
RückholseilReturn rope
16 =16 =
LastwindenmotorLoad winch motor
17 =17 =
RückholwindenmotorReturn winch motor
18 =18 =
Steuerschieber für Lastwindenmotor und RückholwindenmotorControl spool for load winch motor and return winch motor
19 =19 =
Steuerschieber für SchienenantriebControl spool for rail drive
20 =20 =
Steuerschieber für ZylinderControl spool for cylinders
21 =21 =
RücklaufleitungReturn line
22 =22 =
Tanktank
23 =23 =
Leitungmanagement
24 =24 =
Leitungmanagement
25 =25 =
Senk-BremsventilLowering brake valve
26 =26 =
BremslüftzylinderBrake release cylinder
27 =27 =
BremslüftleitungBrake release line
28 =28 =
Flaschenzugpulley
29 =29 =
ExzenterbremseEccentric brake
30 =30 =
Achse der ExzenterbremseEccentric brake axis
31 =31 =
Umlenkrolle für RückholwindenseilDeflection pulley for return winch rope
32 =32 =
Motor für TeleskopschienenantriebMotor for telescopic rail drive
33 =33 =
OberrollenTop rollers
34 =34 =
VerlängerungsschienenExtension rails
35 =35 =
PfeilrichtungArrow direction
36 =36 =
FestpunktBenchmark
37 =37 =
PfeilrichtungArrow direction
38 =38 =
FestpunktBenchmark
39 =39 =
Pumpepump
41 =41 =
Leitungmanagement
42 =42 =
Rückschlagventilcheck valve
43 =43 =
Leitungmanagement
44 =44 =
RücklaufleitungReturn line
45 =45 =
SteuerblockControl block
a =a =
SchaltstellungSwitch position
b =b =
SchaltstellungSwitch position
c =c =
SchaltstellungSwitch position

Claims (14)

1. Sloping elevator (1), which has a plurality of guide rails (7, 7′) for a slide (8) which is pulled by a rope and guided on said guide rails, having a knee-piece (10) arranged between two guide rails (7) in such a way that the guide rails (7, 7′) arranged on both sides of the knee-piece (10) extend on opposite sides (4, 4′) of the roof of a building (2), the load winch rope (11) being guided by the load winch (12) back to the slide (8) via a deflection roller (13) arranged on the first guide rail (7′), characterised in that a return winch (14) is assigned to the load winch (12), in that the free ends of the load winch rope (11) on the one hand and of the return rope (15) on the other hand are each connected to the slide (8), and in that the load winch motor (16) and return winch motor (17) are connected hydraulically in such a way that when one motor (16 or 17) is charged, the other motor (17 or 16) in each case operates as a pump in a closed circulation at restricted rotation.
2. Sloping elevator according to Claim 1, characterised in that a common spool valve (18) is assigned to the load winch motor (16) and the return winch motor (17).
3. Sloping elevator according to Claim 2, characterised in that the spool valve (18) is constructed as a 4/3 way valve.
4. Sloping elevator according to Claims 1-3, characterised in that, when one motor (16 or 17) is charged by the spool valve (18), the return line (21, 2 3) assigned to this motor (16 or 17) runs to the tank (22) bypassing the spool valve (18), the other motor (17 or 16) operating in a closed circulation being connected on the input side, bypassing the spool valve (18) to a line (23, 21) leading to the tank (22) and on the output side via the spool valve (18) to a line (24, 43) leading to the tank (22) (switch positions a and c).
5. Sloping elevator according to Claim 1, characterised in that a lowering brake valve (25) is assigned both to the load winch motor (16) and to the return winch motor (17).
6. Sloping elevator according to Claim 5, characterised in that the lowering brake valve (25) is assigned to the load winch motor (16) working as a pump in the closed circulation and the return winch motor (17) on the output side in each case.
7. Sloping elevator according to Claim 1, characterised in that the brake lifting cylinders (26) of the brake assigned to the load winch motor (16) and of the brake assigned to the return winch motor (17) are connected to a common brake lifting line (27).
8. Sloping elevator according to Claim 1, characterised by a dimensioning of the pump output, absorption capacity of the load winch motor and of the return winch motor, maximum throughflow quantity of the throttle device (lowering brake valve) assigned to the above-mentioned motors, in such a way that the motor driving the load which is being lowered in each case has an absorption capacity which is greater than the maximum throughflow quantity of the throttle device assigned to the motor operating in the closed circulation.
9. Sloping elevator according to Claim 1, characterised in that the return rope (15) is attached to the end of the slide (8) facing the free end of the first guide rail (7′).
10. Sloping elevator according to Claim 1, characterised in that the return winch (14) is arranged above the load winch (12).
11. Sloping elevator according to Claim 1, characterised in that the load winch rope (11) is guided by the load winch (12) via the deflection roller (13) from the free end of the first guide rail (7′) to the end of the slide (8) facing the load winch (12) and is attached there.
12. Sloping elevator according to Claim 1, characterised in that the return rope (15) is guided by the return winch (14) via a deflection roller (31), arranged at the free (bottom) end of the last (bottom) guide rail (7), to the end of the slide (8) facing away from the load winch (12) and is attached there.
13. Sloping elevator according to Claim 12, characterised in that the deflection roller (31), arranged at the free (bottom) end of the last (bottom) guide rail (7), is constructed as a double roller consisting of two adjacent single rollers.
14. Sloping elevator according to Claims 12 and 13, characterised in that the deflection roller (31) is arranged below the load winch (12).
EP88106123A 1987-05-22 1988-04-18 Cranked material hoist with a two-direction drive for the hoisted truck Expired - Lifetime EP0291700B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106123T ATE63889T1 (en) 1987-05-22 1988-04-18 ARTICULATED CARGO ELEVATOR WITH TWO-DIRECTIONAL DRIVE FOR ROPE-DRAWN CARRIAGES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873717350 DE3717350A1 (en) 1987-05-22 1987-05-22 INCLINED ELEVATOR, WHICH HAS SEVERAL GUIDE RAILS FOR A ROPE-DRAWN SLIDE GUIDED TO IT
DE3717350 1987-05-22

Publications (2)

Publication Number Publication Date
EP0291700A1 EP0291700A1 (en) 1988-11-23
EP0291700B1 true EP0291700B1 (en) 1991-05-29

Family

ID=6328217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106123A Expired - Lifetime EP0291700B1 (en) 1987-05-22 1988-04-18 Cranked material hoist with a two-direction drive for the hoisted truck

Country Status (5)

Country Link
EP (1) EP0291700B1 (en)
AT (1) ATE63889T1 (en)
DE (2) DE3717350A1 (en)
ES (1) ES2022516B3 (en)
GR (1) GR3002035T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102935981A (en) * 2012-11-21 2013-02-20 中国重汽集团济南动力有限公司 Winch guiding device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554430B1 (en) * 1983-11-04 1986-01-17 Haemmerlin Georges Sa DOUBLE-SENSE DRIVE MATERIAL LIFT FOR MOBILE CREW
DE3509680A1 (en) * 1985-02-27 1986-09-04 Aloys Zeppenfeld GmbH & Co KG, 5960 Olpe Movable platform for lifting persons
FR2586407B1 (en) * 1985-08-22 1987-10-30 Alsthom DEVICE FOR HOLDING A CABLE WITH ALTERNATIVE MOVEMENT WITH ENERGY STORAGE IN AN OLEOPNEUMATIC ACCUMULATOR AND CABLE LIFT WITH PERMANENT LOAD COMPENSATION.
DE3611241C1 (en) * 1986-04-04 1987-11-05 Boecker Albert Gmbh & Co Kg Control device for the pivoting movement of a guide rail of an elevator formed from a plurality of guide rails

Also Published As

Publication number Publication date
ES2022516B3 (en) 1991-12-01
EP0291700A1 (en) 1988-11-23
GR3002035T3 (en) 1992-12-30
ATE63889T1 (en) 1991-06-15
DE3717350A1 (en) 1988-12-15
DE3862999D1 (en) 1991-07-04

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