EP2393747B1 - Valve for a vacuum lifting device - Google Patents

Valve for a vacuum lifting device Download PDF

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Publication number
EP2393747B1
EP2393747B1 EP10702293A EP10702293A EP2393747B1 EP 2393747 B1 EP2393747 B1 EP 2393747B1 EP 10702293 A EP10702293 A EP 10702293A EP 10702293 A EP10702293 A EP 10702293A EP 2393747 B1 EP2393747 B1 EP 2393747B1
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EP
European Patent Office
Prior art keywords
handle
valve
valve according
another
wall openings
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EP10702293A
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German (de)
French (fr)
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EP2393747A1 (en
Inventor
Dieter Geissler
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J Schmalz GmbH
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J Schmalz GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0212—Circular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0237—Multiple lifting units; More than one suction area
    • B66C1/0243—Separate cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0256—Operating and control devices

Definitions

  • the invention relates to a valve for a vacuum lifting device with two suction ports for two vacuum sources and two connections for two vacuum consumers, which are provided for example in a suction device, and a four-terminal interconnecting handle, wherein the four terminals on a two axial bores having, tubular valve body are provided, on which the handle is displaceably mounted between two end positions adjustable, the valve body for each bore has an axial partition and both sides of each partition a radial opening are provided, and wherein the handle in its one end position connects the openings with each other and in its other end position, the openings against each other seals, and wherein a radially movable push button is provided which locks the handle in at least one end position, and the push button is integrated in the handle and when moving the handle m it is moved.
  • a lifting device with a suction box is known, to which a handle for manipulation of the suction box is attached.
  • a ventilation valve is provided, which is designed as a slide.
  • a vacuum chamber which is connected via a hose to a vacuum source, and via which an object to be lifted is sucked in, ventilated, so that the object can be stored at the desired location.
  • This vent valve can also be provided directly in the handle, wherein the handle forms the tubular Ventii entrepreneurial and over this valve body a handle is slidably disposed or rotatable, whereby the suction chamber can either be connected to the vacuum source or vented.
  • the handle In order to prevent accidental venting of the suction chamber and thereby an untimely throwing off the sucked object is the handle is locked in its suction position by a push-button obstructing the displacement of the handle. In order to release this lock, the push button is to be pressed in before the handle is actuated, whereby it is removed from the displacement path. However, there is a risk that the simultaneous pressing of the push button and moving the handle, the operator injured by the finger is trapped between the push button and the handle.
  • valve as stated in the DE 20 2005 016 147 U1 is known.
  • the push button is integrated into the handle and is moved when moving the handle.
  • the known valve therefore has the significant advantage that in the direction of the handle no relative movement between the push button and the handle longer exists, ie that the push button is moved together with the handle.
  • the push button only has to be pressed in to unlock the handle in its end position.
  • such valves are only for the ground-level lifting of loads, in which the center of gravity is a maximum of 1.8 m above the ground, allowed.
  • the EN 13155 standard specifies two redundant vacuum circuits. Their control has hitherto been realized by the use of two manual slide valves, wherein a valve is used for each vacuum circuit. For this purpose, two valves are arranged independently of each other, and the operator must operate both valves or the two valves are switched simultaneously via a higher mechanical entrainment.
  • the invention is therefore based on the object to provide a valve with which both vacuum circuits can be switched in a simple manner.
  • the valve according to the invention therefore has the significant advantage that both vacuum circuits can be opened and closed with a single handle and thus only a single valve must be actuated.
  • the operator has the other hand free e.g. for targeted guidance of the vacuum lifting device.
  • the valve according to the invention has two (or more) 3/2-way valves, which are actuated via a sliding nozzle, in particular simultaneously.
  • the valve is incorrectly operated and ergonomically operated.
  • the functional equipment is analogous to DE 20 2005 016 147 U1
  • at least two 3/2-way valve are provided so that the required redundancy can be achieved. Since the application mainly relates to the lifting of heavy loads, such as windows and facade elements, and in these special cases to be sucked workpieces are absolutely tight, small cross sections are sufficient.
  • the push-button with spring return arranged sliding sleeve actuates both valves simultaneously, so that the two redundant vacuum circuits are always in the same position. Due to the coupled operation "push and push" the operator safety is given. The system can not remain on the displacement path via the integrated compression spring, it is automatically guided to the safe position “suction" (NO (normally open) version).
  • the contact surface of the sliding sleeve of the hand adapted and executed crowned or barrel-shaped.
  • the controls are designed so large that the operation can also be done with work gloves.
  • this surface may be provided with a soft-touch structure.
  • the handle is manually, hydraulically or pneumatically adjustable.
  • the valve is also remotely controllable.
  • FIG. 1 a perspective view of a vacuum lifting device
  • FIG. 2 a circuit diagram of the vacuum circuits of the vacuum lifting device
  • FIG. 3 a longitudinal section through a preferred embodiment of the valve according to the invention in the open position
  • FIG. 4 a longitudinal section through the valve in the closed position.
  • FIG. 1 shows a generally designated 10 vacuum lifting device, which has a support frame 12 to which a support arm 14 is pivotally and lockably attached.
  • a robot arm or another manipulation device engages on the support arm 14.
  • On the support frame 12 four booms 16 are also attached, to each of which two suction pads 18 and 20 are arranged, the suction side in FIG. 1 pointing down.
  • Within the support frame 12 components for vacuum generation, vacuum reservoirs and components for distributing the negative pressure are housed.
  • a circumferential handrail 22 can be seen, with which the vacuum lifting device 10 can be operated ergonomically.
  • a generally designated 24 valve which is mounted so that it easily by an operator can be grasped and operated with one hand.
  • FIG. 2 shows a circuit diagram of the vacuum circuits of the vacuum lifting device 10.
  • an electric drive 26 for a vacuum pump 28 the output 30 opens into a silencer 32 and the input 34 is connected via two check valves 36 with two vacuum accumulator 38.
  • the two check valves 36 and the two vacuum accumulators 38 are part of two independent vacuum circuits 40 and 42, which are required in vacuum lifting devices 10 for off-center lifting.
  • the input 34 and the two vacuum circuits 40, 42 are monitored by vacuum switches 44 and 46.
  • a warning device 48 is integrated into the electrical circuit, which indicates malfunction acoustically and / or visually.
  • the vacuum switch 44 controls the electric drive 26 and the vacuum switch 46 controls the warning device 48.
  • the vacuum accumulators 38 are connected to the valve 24, which in turn are connected via filter elements 50 with the suction pads 18 and 20. Between the filter elements 50 and the individual suction pads 18 and 20 are still each a quick coupling 52. In addition, a pressure gauge 54 is connected to each vacuum circuit 40, 42.
  • FIG. 3 shows the valve 24 in its open or naturallass ein and the FIG. 4 shows the valve 24 in its closed position.
  • the valve 24 has a tubular valve body 56 which is surrounded by a handle 58.
  • the valve body 56 has two pipe sections 60 and 62, which are screwed together and sealed by two seals 64 and 66 (O-rings).
  • the valve body 56 is penetrated by two axial bores 68 and 70, both bores open at the free end 72 of the tube section 60 radially via two suction ports 6 and at the handle 58 located in the end of the bore 68 radially and the bore 70 opens axially out of the pipe section 60.
  • the two holes 68 and 70 open at the free end 74 of the pipe section 62 via terminals 8 radially.
  • the bore 68 opens at the end located in the handle 58 radially and the bore 70 axially from the pipe section 62.
  • the valve body 56 has a partition wall 76, with which the axial course of the bore 68, and a partition wall 78, with the axial course of the bore 70 is interrupted.
  • the pipe sections 60 and 62 have wall openings 80 to 86, via which the fluid radially out or is introduced into the valve body 56 ,
  • the handle 58 is slidably mounted in the illustrated embodiment in the longitudinal direction on the valve body 56, wherein it can be arranged according to another embodiment, also rotatable in the circumferential direction.
  • the respective components and openings are then arranged correspondingly in the circumferential direction one behind the other on the handle 58 or on the valve body 56.
  • the handle 58 in the FIG. 3 a position in which the vacuum pump 28 is connected to the suction pads 18 and 20.
  • This position corresponds to the suction position.
  • the handle 58 has an inner circumferential groove 88, with which the wall openings 80 and 82 are pneumatically connected to each other.
  • the handle 58 has an inner circumferential groove 94, with which the wall openings 84 and 86 are pneumatically connected to each other.
  • On both sides of the inner circumferential groove 94 there are two gaskets 96 and 98 bearing against the valve body 56.
  • the handle 58 assumes a position in which the inner circumferential grooves 88 and 94 with respect to the positions according to FIG. 3 are positioned laterally offset, that are arranged adjacent to the partitions 76 and 78.
  • the wall openings 80 and 82 and the wall openings 84 and 86 can therefore not be interconnected. Rather, the wall opening 82 is connected via a radial ventilation opening 100 in the handle 58 with the environment, so that via the bore 68 in the pipe section 62 fluid can flow, which is shown by the arrow 102.
  • the free end 74 facing the free end 104 of the handle 58 is dimensioned and provided with an undercut 106, that the wall opening 86 opens into the undercut 106 and is connected to the environment, if, as in FIG. 4 illustrated, the handle 58 is in its closed position. In this way, fluid can flow in through the bore 70 in the tube section 62, which is represented by the arrow 108.
  • the handle 58 has in the region of its free end 110 on a radial stepped bore 112 into which a push button 114 is inserted captive radially from the inside.
  • the push button 114 projects beyond the outside in such a way that it can be pressed radially into the handle 58 with the thumb, for example.
  • a cup-shaped locking element 118 At the radially inner end 116 of the push button 114 is a cup-shaped locking element 118, which in turn is mounted in a radial blind hole 120 in the valve body 56.
  • the cup-shaped locking element 118 surrounds a compression spring 122 which urges the locking element 118 radially outwardly and in the direction of the push button 114, wherein the locking element 118 engages partially in the handle 58 and locks it.
  • FIG. 3 shows FIG. 3 the handle 58 in a position in which the vacuum pump 28 is connected to the suction pads 18 and 20, that is, a negative pressure in the vacuum circuits 40 and 42 prevails.
  • This position of the handle 56 is locked by engagement of the locking element 118 in the stepped bore 112. If the push button 114 is pressed radially, then the locking element 118 is released from the stepped bore 112 and the handle 56 can be moved to the left in its other end position. In this position, a second blocking element 124 is aligned with the stepped bore 112, so that upon release of the push button 114, the blocking element 124 is displaced by the compression spring 126 into the blind hole 120. This position of the handle 58 is then also locked.
  • the locking element 124 is pushed radially so far until it is released from the stepped bore 112 and the handle 58 can be moved to the right.
  • the displacement of the handle 58 takes place automatically, since a compression spring 130 is supported on a support collar 128, which rests against an inner circumferential collar 132 of the handle 58 and displaces it to the right.
  • the locking member 118 engages the stepped bore 112 and the handle 58 takes its end position for the suction and is locked in this.
  • the executed displacement position does not change automatically into an end position.
  • the valve 24 according to the invention therefore has the significant advantage that during displacement (or twisting) of the handle 58, the push button 114 is also displaced (or twisted) and thus a risk of entrapment is avoided.
  • the valve 24 has the advantage that its end positions for sucking and venting are lockable end positions and that the handle 58 is moved due to the forced displacement via the compression spring 130 is moved to the end position for the suction. Intermediate positions between these end positions are not possible because the handle 58 is moved from any undefined intermediate position in any case in the end position for sucking and locked there. Without operating the push button 114, the handle 58 can not be moved from this end position. Accidental venting of the suction pads 18 and 20 is therefore not possible.
  • both vacuum circuits 40 and 42 can be switched or activated with a single movement or actuation of the handle 58.

Description

Die Erfindung betrifft ein Ventil für ein Vakuum-Hebegerät mit zwei Sauganschlüssen für zwei Unterdruckquellen und zwei Anschlüssen für zwei Unterdruckverbraucher, welche zum Beispiel in einer Saugeinrichtung vorgesehen sind, und einer die vier Anschlüsse miteinander verbindenden Handhabe, wobei die vier Anschlüsse an einem zwei axiale Bohrungen aufweisenden, rohrförmigen Ventilkörper vorgesehen sind, auf dem die Handhabe verschiebbar zwischen zwei Endstellungen verstellbar gelagert ist, der Ventilkörper für jede Bohrung eine axiale Trennwand aufweist und beidseits jeder Trennwand eine radiale Öffnung vorgesehen sind, und wobei die Handhabe in ihrer einen Endstellung die Öffnungen miteinander verbindet und in ihrer anderen Endstellung die Öffnungen gegeneinander abdichtet, und wobei ein radial beweglicher Druckknopf vorgesehen ist, der die Handhabe in zumindest einer Endstellung verriegelt, und der Druckknopf in die Handhabe integriert ist und beim Bewegen der Handhabe mitbewegt wird.The invention relates to a valve for a vacuum lifting device with two suction ports for two vacuum sources and two connections for two vacuum consumers, which are provided for example in a suction device, and a four-terminal interconnecting handle, wherein the four terminals on a two axial bores having, tubular valve body are provided, on which the handle is displaceably mounted between two end positions adjustable, the valve body for each bore has an axial partition and both sides of each partition a radial opening are provided, and wherein the handle in its one end position connects the openings with each other and in its other end position, the openings against each other seals, and wherein a radially movable push button is provided which locks the handle in at least one end position, and the push button is integrated in the handle and when moving the handle m it is moved.

Aus der DE 3618704 C1 ist eine Hebevorrichtung mit einem Saugkasten bekannt, an welchem ein Handgriff zur Manipulation des Saugkastens befestigt ist. An diesem Saugkasten ist auch ein Belüftungsventil vorgesehen, welches als Schieber ausgebildet ist. Durch Öffnen des Ventils wird ein Unterdruckraum, welcher über einen Schlauch an eine Unterdruckquelle angeschlossen ist, und über welchen ein anzuhebender Gegenstand angesaugt wird, belüftet, so dass der Gegenstand an gewünschter Stelle abgelegt werden kann. Dieses Belüftungsventil kann auch direkt im Handgriff vorgesehen sein, wobei der Handgriff den rohrförmigen Ventiikörper bildet und über diesem Ventilkörper eine Handhabe verschieblich oder verdrehbar angeordnet ist, wodurch der Saugraum entweder mit der Unterdruckquelle verbunden oder aber belüftet werden kann.From the DE 3618704 C1 a lifting device with a suction box is known, to which a handle for manipulation of the suction box is attached. At this suction box and a ventilation valve is provided, which is designed as a slide. By opening the valve, a vacuum chamber, which is connected via a hose to a vacuum source, and via which an object to be lifted is sucked in, ventilated, so that the object can be stored at the desired location. This vent valve can also be provided directly in the handle, wherein the handle forms the tubular Ventiikörper and over this valve body a handle is slidably disposed or rotatable, whereby the suction chamber can either be connected to the vacuum source or vented.

Um ein versehentliches Belüften des Saugraumes und dadurch ein unzeitiges Abwerfen des angesaugten Gegenstandes zu verhindern, ist die Handhabe in ihrer Saugstellung durch einen den Verschiebeweg der Handhabe versperrenden Druckknopf verriegelt. Um diese Verriegelung zu lösen ist der Druckknopf vor dem Betätigen der Handhabe einzudrücken, wodurch er aus dem Verschiebeweg entfernt wird. Hierbei besteht jedoch die Gefahr, dass beim gleichzeitigen Eindrücken des Druckknopfes und Verschieben der Handhabe sich die Bedienperson verletzt, indem der Finger zwischen dem Druckknopf und der Handhabe eingeklemmt wird.In order to prevent accidental venting of the suction chamber and thereby an untimely throwing off the sucked object is the handle is locked in its suction position by a push-button obstructing the displacement of the handle. In order to release this lock, the push button is to be pressed in before the handle is actuated, whereby it is removed from the displacement path. However, there is a risk that the simultaneous pressing of the push button and moving the handle, the operator injured by the finger is trapped between the push button and the handle.

Dieses Problem wird durch ein Ventil gelöst, wie es aus der DE 20 2005 016 147 U1 bekannt ist. Bei diesem Ventil ist der Druckknopf in die Handhabe integriert und wird beim Bewegen der Handhabe mitbewegt. Das bekannte Ventil hat demnach den wesentlichen Vorteil, dass in Verschieberichtung der Handhabe keine Relativbewegung zwischen dem Druckknopf und der Handhabe mehr existiert, d.h. dass der Druckknopf zusammen mit der Handhabe verschoben wird. Der Druckknopf muss lediglich noch eingedrückt werden, um die in ihrer Endstellung sich befindende Handhabe zu entriegeln. Derartige Ventile sind jedoch nur für das bodennahe Heben von Lasten, bei dem sich der Massenschwerpunkt maximal 1,8 m über dem Boden befindet, zulässig.This problem is solved by a valve, as stated in the DE 20 2005 016 147 U1 is known. In this valve, the push button is integrated into the handle and is moved when moving the handle. The known valve therefore has the significant advantage that in the direction of the handle no relative movement between the push button and the handle longer exists, ie that the push button is moved together with the handle. The push button only has to be pressed in to unlock the handle in its end position. However, such valves are only for the ground-level lifting of loads, in which the center of gravity is a maximum of 1.8 m above the ground, allowed.

Für das nicht bodennahe Heben, bei dem der Massenschwerpunkt der Last sich mehr als 1,8 m über dem Boden befindet, schreibt die Norm EN 13155 zwei redundante Vakuumkreise vor. Deren Ansteuerung wird bisher durch die Verwendung von zwei Handschiebeventilen realisiert, wobei für jeden Vakuumkreis ein Ventil verwendet wird. Hierfür werden zwei Ventile unabhängig voneinander angeordnet, und die Bedienperson muss beide Ventile bedienen bzw. die beiden Ventile werden über eine übergeordnete mechanische Mitnahme gleichzeitig geschaltet.For off-ground lifting, where the center of mass of the load is more than 1.8 m above the ground, the EN 13155 standard specifies two redundant vacuum circuits. Their control has hitherto been realized by the use of two manual slide valves, wherein a valve is used for each vacuum circuit. For this purpose, two valves are arranged independently of each other, and the operator must operate both valves or the two valves are switched simultaneously via a higher mechanical entrainment.

Aufgrund der Robustheit und Einfachheit werden mechanische Ventile an Stelle von Elektromagnetventilen bevorzugt. Eine Möglichkeit der Ausführung wären zwei Ventile gemäß der DE 20 2005 016 147 U1 .Because of the ruggedness and simplicity, mechanical valves are preferred rather than solenoid valves. One possibility of execution would be two valves according to the DE 20 2005 016 147 U1 ,

Aus Sicht der Handhabung ist es unergonomisch, dass die eine Funktion Saugen nur durch das Betätigen von zwei Ventilen, jeweils mit Zweifachbetätigung (Drücken + Schieben) erreicht werden kann. Auch die mechanische Koppelung von zwei Ventilen durch ein übergeordnetes Betätigungselement stellt einen großen technischen Aufwand dar. Nach Norm wäre hier das Betätigungselement mit einer Zweifachbetätigung auszuführen.From a handling point of view, it is unergonomic that one suction function can only be achieved by operating two valves, each with a double action (push + push). Also the Mechanical coupling of two valves by a higher-level actuator represents a great technical effort. According to standard, the actuator should be executed here with a double operation.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Ventil bereitzustellen, mit welchem auf einfache Weise beide Vakuumkreise geschaltet werden können.The invention is therefore based on the object to provide a valve with which both vacuum circuits can be switched in a simple manner.

Diese Aufgabe wird bei einem Ventil der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass die Trennwände axial versetzt angeordnet sind und in der Handhabe im Bereich der Trennwände Überströmkanäle zum Verbinden der Öffnungen vorgesehen sind.This object is achieved in a valve of the type mentioned in the present invention, that the partitions are arranged axially offset and in the handle in the region of the partition walls overflow channels are provided for connecting the openings.

Das erfindungsgemäße Ventil hat demnach den wesentlichen Vorteil, dass mit einer einzigen Handhabe beide Vakuumkreise geöffnet und geschlossen werden können und somit nur ein einziges Ventil betätigt werden muss. Die Bedienperson hat die andere Hand frei z.B. zum gezielten Führen des Vakuum-Hebegeräts.The valve according to the invention therefore has the significant advantage that both vacuum circuits can be opened and closed with a single handle and thus only a single valve must be actuated. The operator has the other hand free e.g. for targeted guidance of the vacuum lifting device.

Das erfindungsgemäße Ventil weist zwei (oder mehrere) 3/2-Wegeventile auf, die über eine Schiebehüse, insbesondere gleichzeitig betätigt werden. Das Ventil ist fehlbedienungsge sichert und ergonomisch bedienbar.The valve according to the invention has two (or more) 3/2-way valves, which are actuated via a sliding nozzle, in particular simultaneously. The valve is incorrectly operated and ergonomically operated.

Die funktionelle Ausrüstung ist analog zur DE 20 2005 016 147 U1 , jedoch sind wenigstens zwei 3/2-Wegeventil vorgesehen, damit die geforderte Redundanz erreicht werden kann. Da die Anwendung hauptsächlich das Heben von schweren Lasten, wie Fenster und Fassadenelemente betrifft, und in diesen speziellen Fällen anzusaugenden Werkstücke absolut dicht sind, reichen kleine Querschnitte aus. Die über Druckknopf mit Federrückstellung angeordnete Schiebehülse betätigt beide Ventile gleichzeitig, damit befinden sich die beiden redundanten Vakuum-Kreise auch immer in derselben Stellung. Durch die gekoppelte Bedienung "Drücken und Schieben" ist die Fehlbedienungssicherheit gegeben. Über die integrierte Druckfeder kann das System nicht auf dem Verschiebeweg verharren, es wird automatisch zur sicheren Stellung "Saugen" geführt (NO-(normal offen)-Ausführung).The functional equipment is analogous to DE 20 2005 016 147 U1 However, at least two 3/2-way valve are provided so that the required redundancy can be achieved. Since the application mainly relates to the lifting of heavy loads, such as windows and facade elements, and in these special cases to be sucked workpieces are absolutely tight, small cross sections are sufficient. The push-button with spring return arranged sliding sleeve actuates both valves simultaneously, so that the two redundant vacuum circuits are always in the same position. Due to the coupled operation "push and push" the operator safety is given. The system can not remain on the displacement path via the integrated compression spring, it is automatically guided to the safe position "suction" (NO (normally open) version).

Aus ergonomischer Sicht ist die Kontaktfläche der Schiebehülse der Hand angepasst und ballig oder tonnenförmig ausgeführt. Die Bedienelemente sind so groß ausgeführt, dass die Bedienung auch mit Arbeitshandschuhen erfolgen kann. Als Ergänzung kann diese Oberfläche ggf. mit einer Soft-Touch-Struktur versehen werden.From an ergonomic point of view, the contact surface of the sliding sleeve of the hand adapted and executed crowned or barrel-shaped. The controls are designed so large that the operation can also be done with work gloves. As a supplement, this surface may be provided with a soft-touch structure.

Erfindungsgemäß ist die Handhabe manuell, hydraulisch oder pneumatisch verstellbar. Auf diese Weise ist das Ventil auch fernbedienbar.According to the invention, the handle is manually, hydraulically or pneumatically adjustable. In this way, the valve is also remotely controllable.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel beschrieben ist. Dabei können die in der Zeichnung dargestellten sowie in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindurigswesentlich sein.Further advantages, features and details of the invention will become apparent from the subclaims and the following description in which a particularly preferred embodiment is described with reference to the drawing. In this case, the features shown in the drawing and mentioned in the claims and in the description may each be individually inventive in itself or in any combination essential to the invention.

In der Zeichnung zeigen:In the drawing show:

Figur 1 eine perspektivische Ansicht eines Vakuum-Hebegeräts; FIG. 1 a perspective view of a vacuum lifting device;

Figur 2 ein Schaltplan der Vakuumkreise des Vakuum-Hebegeräts; FIG. 2 a circuit diagram of the vacuum circuits of the vacuum lifting device;

Figur 3 einen Längsschnitt durch eine bevorzugte Ausführungsform des erfindungsgemäßen Ventils in Offenstellung; und FIG. 3 a longitudinal section through a preferred embodiment of the valve according to the invention in the open position; and

Figur 4 einen Längsschnitt durch das Ventil in Geschlossenstellung. FIG. 4 a longitudinal section through the valve in the closed position.

Die Figur 1 zeigt eine insgesamt mit 10 bezeichnetes Vakuum-Hebegerät, welches einen Tragrahmen 12 aufweist, an welchem ein Tragarm 14 schwenkbar und verriegelbar befestigt ist. Am Tragarm 14 greift z.B. ein Roboterarm oder eine andere Manipulationseinrichtung an. Am Tragrahmen 12 sind außerdem vier Ausleger 16 befestigt, an welchen jeweils zwei Sauggreifer 18 und 20 angeordnet sind, deren Ansaugseite in Figur 1 nach unten weist. Innerhalb des Tragrahmens 12 sind Komponenten zur Unterdruckerzeugung, Unterdruckspeicher und Bauteile zur Verteilung des Unterdrucks untergebracht. Außerdem ist ein umlaufender Handlauf 22 erkennbar, mit welchem das Vakuum-Hebegerät 10 ergonomisch bedient werden kann. In der Nähe des Handlaufs 22 befindet sich am Tragrahmen 12 ein insgesamt mit 24 bezeichnetes Ventil, welches derart angebracht ist, dass es problemlos von einer Bedienperson mit einer Hand ergriffen und betätigt werden kann.The FIG. 1 shows a generally designated 10 vacuum lifting device, which has a support frame 12 to which a support arm 14 is pivotally and lockably attached. For example, a robot arm or another manipulation device engages on the support arm 14. On the support frame 12 four booms 16 are also attached, to each of which two suction pads 18 and 20 are arranged, the suction side in FIG. 1 pointing down. Within the support frame 12 components for vacuum generation, vacuum reservoirs and components for distributing the negative pressure are housed. In addition, a circumferential handrail 22 can be seen, with which the vacuum lifting device 10 can be operated ergonomically. In the vicinity of the handrail 22 is located on the support frame 12 a generally designated 24 valve which is mounted so that it easily by an operator can be grasped and operated with one hand.

Die Figur 2 zeigt einen Schaltplan der Vakuumkreise des Vakuum-Hebegeräts 10. Innerhalb des schematisch dargestellten Tragrahmens 12 befindet ein elektrischer Antrieb 26 für eine Unterdruckpumpe 28, deren Ausgang 30 in einen Schalldämpfer 32 mündet und deren Eingang 34 über zwei Rückschlagventile 36 mit zwei Unterdruckspeicher 38 verbunden ist. Die beiden Rückschlagventile 36 und die beiden Unterdruckspeicher 38 sind Teil zweier voneinander unabhängiger Unterdruckkreise 40 und 42, die bei Vakuum-Hebegeräten 10 für das bodenferne Heben erforderlich sind. Im Folgenden wir einer der beiden Unterdruckkreise 40, 42 näher beschrieben, wobei diese Beschreibung auch für den anderen Unterdruckkreis gilt. Der Eingang 34 sowie die beiden Unterdruckkreise 40, 42 werden von Vakuumschaltern 44 und 46 überwacht. Schließlich ist noch eine Warneinrichtung 48 in den elektrischen Kreis eingebunden, die Fehlfunktionen akustisch und/oder optisch anzeigt. Der Vakuumschalter 44 steuert den elektrischen Antrieb 26 und der Vakuumschalter 46 steuert die Warneinrichtung 48.The FIG. 2 shows a circuit diagram of the vacuum circuits of the vacuum lifting device 10. Within the schematically illustrated support frame 12 is an electric drive 26 for a vacuum pump 28, the output 30 opens into a silencer 32 and the input 34 is connected via two check valves 36 with two vacuum accumulator 38. The two check valves 36 and the two vacuum accumulators 38 are part of two independent vacuum circuits 40 and 42, which are required in vacuum lifting devices 10 for off-center lifting. In the following we will describe one of the two vacuum circuits 40, 42 in more detail, this description also applies to the other vacuum circuit. The input 34 and the two vacuum circuits 40, 42 are monitored by vacuum switches 44 and 46. Finally, a warning device 48 is integrated into the electrical circuit, which indicates malfunction acoustically and / or visually. The vacuum switch 44 controls the electric drive 26 and the vacuum switch 46 controls the warning device 48.

Die Unterdruckspeicher 38 sind an das Ventil 24 angeschlossen, das seinerseits über Filterelemente 50 mit den Sauggreifern 18 und 20 verbunden sind. Zwischen den Filterelementen 50 und den einzelnen Sauggreifern 18 und 20 befinden sich noch jeweils eine Schnellkupplung 52. Außerdem ist an jeden Unterdruckkreis 40, 42 ein Manometer 54 angeschlossen.The vacuum accumulators 38 are connected to the valve 24, which in turn are connected via filter elements 50 with the suction pads 18 and 20. Between the filter elements 50 and the individual suction pads 18 and 20 are still each a quick coupling 52. In addition, a pressure gauge 54 is connected to each vacuum circuit 40, 42.

Nachfolgend wird das Ventil 24 im Detail beschrieben. Die Figur 3 zeigt das Ventil 24 in seiner Offen- oder Durchlassstellung und die Figur 4 zeigt das Ventil 24 in seiner Schließstellung. Das Ventil 24 weist einen rohrförmigen Ventilkörper 56 auf, der von einer Handhabe 58 umgeben ist. Der Ventilkörper 56 weist zwei Rohrabschnitte 60 und 62 auf, die miteinander verschraubt und mittels zweier Dichtungen 64 und 66 (O-Ringe) abgedichtet sind. Der Ventilkörper 56 ist von zwei axialen Bohrungen 68 und 70 durchsetzt, wobei beide Bohrungen am freien Ende 72 des Rohrabschnitts 60 radial über zwei Sauganschlüsse 6 ausmünden und am in der Handhabe 58 sich befindenden Ende die Bohrung 68 radial und die Bohrung 70 axial aus dem Rohrabschnitt 60 ausmündet. Ebenso münden die beiden Bohrungen 68 und 70 am freien Ende 74 des Rohrabschnitts 62 über Anschlüsse 8 radial aus. Die Bohrung 68 mündet am in der Handhabe 58 sich befindenden Ende radial und die Bohrung 70 axial aus dem Rohrabschnitt 62 aus. Durch die Verschraubung der Beiden Rohrabschnitte 60 und 62 geht die Bohrung 70 fluiddicht vom Rohrabschnitt 60 in den Rohrabschnitt 62 über. Der Ventilkörper 56 besitzt eine Trennwand 76, mit der der axiale Verlauf die Bohrung 68, und eine Trennwand 78, mit der der axiale Verlauf die Bohrung 70 unterbrochen wird. Dabei befindet sich die Trennwand 76 im Rohrabschnitt 60 und die Trennwand 78 im Rohrabschnitt 62. Beidseits der Trennwände 76 und 78 weisen die Rohrabschnitte 60 und 62 Wanddurchbrüche 80 bis 86 auf, über welche das Fluid radial aus- bzw. in den Ventilkörper 56 eingeleitet wird.Hereinafter, the valve 24 will be described in detail. The FIG. 3 shows the valve 24 in its open or Durchlassstellung and the FIG. 4 shows the valve 24 in its closed position. The valve 24 has a tubular valve body 56 which is surrounded by a handle 58. The valve body 56 has two pipe sections 60 and 62, which are screwed together and sealed by two seals 64 and 66 (O-rings). The valve body 56 is penetrated by two axial bores 68 and 70, both bores open at the free end 72 of the tube section 60 radially via two suction ports 6 and at the handle 58 located in the end of the bore 68 radially and the bore 70 opens axially out of the pipe section 60. Likewise, the two holes 68 and 70 open at the free end 74 of the pipe section 62 via terminals 8 radially. The bore 68 opens at the end located in the handle 58 radially and the bore 70 axially from the pipe section 62. By screwing the two pipe sections 60 and 62, the bore 70 is fluid-tight from the pipe section 60 in the pipe section 62 on. The valve body 56 has a partition wall 76, with which the axial course of the bore 68, and a partition wall 78, with the axial course of the bore 70 is interrupted. On both sides of the partitions 76 and 78, the pipe sections 60 and 62 have wall openings 80 to 86, via which the fluid radially out or is introduced into the valve body 56 ,

Die Handhabe 58 ist beim dargestellten Ausführungsbeispiel in Längsrichtung verschieblich auf dem Ventilkörper 56 gelagert, wobei sie, gemäß einem anderen Ausführungsbeispiel, auch in Umfangsrichtung verdrehbar angeordnet sein kann. Die jeweiligen Bauteile und Durchbrüche sind dann entsprechend in Umfangsrichtung hintereinander an der Handhabe 58 bzw. am Ventilkörper 56 angeordnet.The handle 58 is slidably mounted in the illustrated embodiment in the longitudinal direction on the valve body 56, wherein it can be arranged according to another embodiment, also rotatable in the circumferential direction. The respective components and openings are then arranged correspondingly in the circumferential direction one behind the other on the handle 58 or on the valve body 56.

Wie bereits erwähnt, nimmt die Handhabe 58 in der Figur 3 eine Stellung ein, bei welcher die Unterdruckpumpe 28 mit den Sauggreifern 18 und 20 verbunden ist. Diese Stellung entspricht der Saugstellung. Hierfür weist die Handhabe 58 eine Innenumfangsnut 88 auf, mit der die Wanddurchbrüche 80 und 82 pneumatisch miteinander verbunden sind. Beidseits der Innenumfangsnut 88 befinden sich zwei am Ventilkörper 56 anliegende Dichtungen 90 und 92 (z.B. O-Ringe), die das System gegenüber der Umgebung abdichten. Außerdem weist die Handhabe 58 eine Innenumfangsnut 94 auf, mit der die Wanddurchbrüche 84 und 86 pneumatisch miteinander verbunden sind. Beidseits der Innenumfangsnut 94 befinden sich zwei am Ventilkörper 56 anliegende Dichtungen 96 und 98. Dabei sind die Längenabmessungen und Positionen der Innenumfangsnuten 88 und 94 bezüglich der Größen und Positionen der Wanddurchbrüche 80 bis 86 so bemessen und gewählt, dass beim Verschieben der Handhabe 58 die Wanddurchbrüche 80 und 82 gleichzeitig mit den Wanddurchbrüchen 84 und 86 miteinander verbunden werden.As already mentioned, the handle 58 in the FIG. 3 a position in which the vacuum pump 28 is connected to the suction pads 18 and 20. This position corresponds to the suction position. For this purpose, the handle 58 has an inner circumferential groove 88, with which the wall openings 80 and 82 are pneumatically connected to each other. On both sides of the inner circumferential groove 88 there are two gaskets 90 and 92 (eg O-rings) which bear against the valve body 56 and seal the system from the environment. In addition, the handle 58 has an inner circumferential groove 94, with which the wall openings 84 and 86 are pneumatically connected to each other. On both sides of the inner circumferential groove 94 there are two gaskets 96 and 98 bearing against the valve body 56. The length dimensions and positions of the inner circumferential grooves 88 and 94 with respect to the sizes and positions of the Wall openings 80 to 86 dimensioned and selected so that when moving the handle 58, the wall openings 80 and 82 are connected to each other simultaneously with the wall openings 84 and 86.

In der Figur 4 nimmt die Handhabe 58 eine Position ein, in der die Innenumfangsnuten 88 und 94 gegenüber den Positionen gemäß Figur 3 seitlich versetzt positioniert sind, d.h. neben den Trennwänden 76 und 78 angeordnet sind. Die Wanddurchbrüche 80 und 82 und die Wanddurchbrüche 84 und 86 können daher nicht miteinander verbunden werden. Vielmehr wird der Wanddurchbruch 82 über eine radiale Belüftungsöffnung 100 in der Handhabe 58 mit der Umgebung verbunden, so dass über die Bohrung 68 im Rohrabschnitt 62 Fluid einströmen kann, was mit dem Pfeil 102 dargestellt ist.In the FIG. 4 the handle 58 assumes a position in which the inner circumferential grooves 88 and 94 with respect to the positions according to FIG. 3 are positioned laterally offset, that are arranged adjacent to the partitions 76 and 78. The wall openings 80 and 82 and the wall openings 84 and 86 can therefore not be interconnected. Rather, the wall opening 82 is connected via a radial ventilation opening 100 in the handle 58 with the environment, so that via the bore 68 in the pipe section 62 fluid can flow, which is shown by the arrow 102.

Das dem freien Ende 74 zugewandte freie Ende 104 der Handhabe 58 ist derart dimensioniert und mit einem Hinterschnitt 106 versehen, dass der Wanddurchbruch 86 in den Hinterschnitt 106 ausmündet und mit der Umgebung verbunden ist, wenn, wie in Figur 4 dargestellt ,die Handhabe 58 sich in ihrer Schließstellung befindet. Auf diese Weise kann über die Bohrung 70 im Rohrabschnitt 62 Fluid einströmen, was mit dem Pfeil 108 dargestellt ist.The free end 74 facing the free end 104 of the handle 58 is dimensioned and provided with an undercut 106, that the wall opening 86 opens into the undercut 106 and is connected to the environment, if, as in FIG. 4 illustrated, the handle 58 is in its closed position. In this way, fluid can flow in through the bore 70 in the tube section 62, which is represented by the arrow 108.

Die Handhabe 58 weist im Bereich seines freien Endes 110 eine radiale Stufenbohrung 112 auf, in welche ein Druckknopf 114 verliersicher radial von innen eingesetzt ist. Der Druckknopf 114 überragt die Außenseite derart, dass er z.B. mit dem Daumen radial in die Handhabe 58 eingedrückt werden kann. Am radial inneren Ende 116 des Druckknopfes 114 liegt ein topfförmiges Sperrelement 118 an, welches seinerseits in einem radialen Sackloch 120 im Ventilkörper 56 gelagert ist. Dabei umgreift das topfförmige Sperrelement 118 eine Druckfeder 122, die das Sperrelement 118 radial nach außen und in Richtung des Druckknopfs 114 drängt, wobei das Sperrelement 118 teilweise in die Handhabe 58 eingreift und diese verriegelt. Zur Entriegelung wird der Druckknopf 114 zumindest so weit in die Handhabe 58 eingedrückt, bis das Sperrelement 18, welches in seiner ausgeschobenen Lage in die Stufenbohrung 112 eingreift, aus dieser so weit ausgeschoben wird, dass kein Formschluss mehr zwischen Sperrelement 118 und Stufenbohrung 112 besteht. Die Handhabe 58 kann dann auf dem Ventilkörper 56 verschoben werden.The handle 58 has in the region of its free end 110 on a radial stepped bore 112 into which a push button 114 is inserted captive radially from the inside. The push button 114 projects beyond the outside in such a way that it can be pressed radially into the handle 58 with the thumb, for example. At the radially inner end 116 of the push button 114 is a cup-shaped locking element 118, which in turn is mounted in a radial blind hole 120 in the valve body 56. In this case, the cup-shaped locking element 118 surrounds a compression spring 122 which urges the locking element 118 radially outwardly and in the direction of the push button 114, wherein the locking element 118 engages partially in the handle 58 and locks it. To unlock the push button 114 is at least as far pushed into the handle 58 until the locking element 18, which in its extended position in the stepped bore 112th engages, is pushed out of this so far that no positive connection between locking element 118 and step bore 112 is made. The handle 58 can then be moved on the valve body 56.

Wie bereits erwähnt, zeigt die Figur 3 die Handhabe 58 in einer Position, in der die Unterdruckpumpe 28 mit den Sauggreifern 18 und 20 verbunden ist, d.h. ein Unterdruck in den Unterdruckkreisen 40 und 42 herrscht. Diese Position der Handhabe 56 ist durch Eingriff des Sperrelements 118 in die Stufenbohrung 112 verriegelt. Wird der Druckknopf 114 radial eingedrückt, dann kommt das Sperrelement 118 von der Stufenbohrung 112 frei und die Handhabe 56 kann nach links in ihre andere Endstellung verschoben werden. In dieser Position fluchtet ein zweites Sperrelement 124 mit der Stufenbohrung 112, sodass beim Loslassen des Druckknopfes 114 das Sperrelement 124 von der Druckfeder 126 in das Sackloch 120 verschoben wird. Diese Position der Handhabe 58 ist dann ebenfalls verriegelt.As already mentioned, the shows FIG. 3 the handle 58 in a position in which the vacuum pump 28 is connected to the suction pads 18 and 20, that is, a negative pressure in the vacuum circuits 40 and 42 prevails. This position of the handle 56 is locked by engagement of the locking element 118 in the stepped bore 112. If the push button 114 is pressed radially, then the locking element 118 is released from the stepped bore 112 and the handle 56 can be moved to the left in its other end position. In this position, a second blocking element 124 is aligned with the stepped bore 112, so that upon release of the push button 114, the blocking element 124 is displaced by the compression spring 126 into the blind hole 120. This position of the handle 58 is then also locked.

In dieser Position der Handhabe 58, welche in Figur 4 dargestellt ist, ist die Innenumfangsnut 88 so weit nach links verschoben, dass die Dichtung 92 auf der Trennwand 76 zu liegen kommt und die beiden Wanddurchbrüche 80 und 82 voneinander trennt.In this position, the handle 58, which in FIG. 4 is shown, the Innenumfangsnut 88 is shifted so far to the left that the seal 92 comes to lie on the partition wall 76 and the two wall openings 80 and 82 separated from each other.

Wird der Druckknopf 114 wiederum betätigt, dann wird das Sperrelement 124 radial so weit eingedrückt, bis es von der Stufenbohrung 112 frei kommt und die Handhabe 58 nach rechts verschoben werden kann. Die Verschiebung der Handhabe 58 erfolgt selbsttätig, da sich an einem Stützkragen 128 eine Druckfeder 130 abstützt, die an einem Innenumfangsbund 132 der Handhabe 58 anliegt und diese nach rechts verschiebt. Sobald die Stufenbohrung 112 und das Sperrelement 118 fluchten, rastet das Sperrelement 118 in die Stufenbohrung 112 ein und die Handhabe 58 nimmt ihre Endstellung für das Saugen ein und ist in dieser verriegelt. Für nicht sicherheitsrelevante Aufgabenstellungen kann auf die Ausführung der Fehlbedienungssicherung mit Druckknopf 114 und Druckfeder 130 verzichtet werden. Hierbei verändert sich die ausgeführte Verschiebestellung nicht selbsttätig in eine Endlage.If the push button 114 is actuated again, then the locking element 124 is pushed radially so far until it is released from the stepped bore 112 and the handle 58 can be moved to the right. The displacement of the handle 58 takes place automatically, since a compression spring 130 is supported on a support collar 128, which rests against an inner circumferential collar 132 of the handle 58 and displaces it to the right. Once the stepped bore 112 and the locking member 118 are aligned, the locking member 118 engages the stepped bore 112 and the handle 58 takes its end position for the suction and is locked in this. For non-safety-related tasks can be dispensed with the execution of the misuse safety device with push button 114 and compression spring 130. In this case, the executed displacement position does not change automatically into an end position.

Das erfindungsgemäße Ventil 24 hat demnach den wesentlichen Vorteil, dass beim Verschieben (oder Verdrehen) der Handhabe 58 der Druckknopf 114 ebenfalls mit verschoben (oder verdreht) wird und dadurch eine Einklemmgefahr vermieden wird. Außerdem besitzt das Ventil 24 den Vorteil, dass seine Endstellungen für das Saugen und für das Belüften verriegelbare Endstellungen sind und dass die Handhabe 58 aufgrund der Zwangsverschiebung über die Druckfeder 130 definiert in die Endstellung für das Saugen verschoben wird. Zwischenstellungen zwischen diesen Endstellungen sind nicht möglich, da die Handhabe 58 aus einer etwaigen undefinierten Zwischenstellung auf jeden Fall in die Endstellung für das Saugen verschoben und dort verriegelt wird. Ohne Betätigung des Druckknopfes 114 kann die Handhabe 58 aus dieser Endstellung nicht verschoben werden. Ein versehentliches Belüften der Sauggreifer 18 und 20 ist daher nicht möglich.The valve 24 according to the invention therefore has the significant advantage that during displacement (or twisting) of the handle 58, the push button 114 is also displaced (or twisted) and thus a risk of entrapment is avoided. In addition, the valve 24 has the advantage that its end positions for sucking and venting are lockable end positions and that the handle 58 is moved due to the forced displacement via the compression spring 130 is moved to the end position for the suction. Intermediate positions between these end positions are not possible because the handle 58 is moved from any undefined intermediate position in any case in the end position for sucking and locked there. Without operating the push button 114, the handle 58 can not be moved from this end position. Accidental venting of the suction pads 18 and 20 is therefore not possible.

Mit dem erfindungsgemäßen Ventil 24 können also mit einer einzigen Bewegung oder Betätigung der Handhabe 58 beide Unterdruckkreise 40 und 42 geschaltet bzw. angesteuert werden.With the valve 24 according to the invention, therefore, both vacuum circuits 40 and 42 can be switched or activated with a single movement or actuation of the handle 58.

Claims (9)

  1. A valve (24) for a vacuum lifting device (10) having two suction connections (6) for two underpressure sources (38) and two connections (8) for two underpressure consumers (18 and 20), and having a handle (58) connecting the four connections (6 and 8) to one another, and the four connections (6 and 8) are provided on a tubular valve body (56) which has two axial bores (68 and 70) and on which the handle (58) is adjustably supported displaceably or rotatably between two terminal positions, the valve body (56) for each bore (68 and 70) has an axial partition (76 and 78), and on both sides of each partition (76 and 78), radial wall openings (80 - 86) are provided, and the handle (56), in one terminal position, connects the wall openings (80 - 86) to one another and in its other terminal position it seals off the wall openings (80 - 86) from one another, and a radially movable pushbutton (114) which locks the handle (58) in at least one terminal position is provided, and the pushbutton (114) is integrated with the handle (48) and is moved with the handle when the handle (58) moves, characterized in that the partitions (76 and 78) are disposed in axially offset fashion, and overflow conduits (88 and 94) for connecting the wall openings (80 - 86) are provided in the handle (58), in the vicinity of the partitions (76 and 78).
  2. The valve according to claim 1, characterized in that the handle (58) connects the wall openings (80 - 86) to one another or seals them off from one another simultaneously.
  3. The valve according to claim 1, characterized in that the handle (58) connects the wall openings (80 and 82 or 84 and 86) associated with the one partition (76 or 78) to one another or seals them off from one another sooner than the wall openings (84 and 86 or 80 and 82) associated with the other partition (78 or 76).
  4. The valve according to one of the foregoing claims, characterized in that in one position of the handle (58), the two connections (8) for the two underpressure consumers (18 and 20) communicate with the environment.
  5. The valve according to claim 4, characterized in that the handle (58) is provided with two ventilation openings (100) leading out into the open, which in the one position of the handle (58) communicate with the two connections (8) for the two underpressure consumers (18 and 20).
  6. The valve according to one of the foregoing claims, characterized in that it has at least two 3/2-way valves.
  7. The valve according to claim 6, characterized in that the cross sections of the air-carrying conduits (68 and 70) in the 3/2-way valves are the same size or different sizes.
  8. The valve according to claim 6 or 7, characterized in that the 3/2-way valves are switched by means of the handle (58).
  9. The valve according to one of the foregoing claims, characterized in that the handle (58) is manually, hydraulically, or pneumatically adjustable.
EP10702293A 2009-02-04 2010-02-01 Valve for a vacuum lifting device Active EP2393747B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910008203 DE102009008203B3 (en) 2009-02-04 2009-02-04 Valve for a vacuum lifter
PCT/EP2010/051160 WO2010089270A1 (en) 2009-02-04 2010-02-01 Valve for a vacuum lifting device

Publications (2)

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EP2393747A1 EP2393747A1 (en) 2011-12-14
EP2393747B1 true EP2393747B1 (en) 2012-12-19

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DE (1) DE102009008203B3 (en)
WO (1) WO2010089270A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106144875A (en) * 2016-08-25 2016-11-23 上海涵勋自动化设备有限公司 A kind of wireless remote control vacuum absorbing and hoisting machine
CN109795943A (en) * 2019-02-13 2019-05-24 陈金芽 A kind of high altitude operation glass hanging equipment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008290U1 (en) * 2010-08-16 2011-12-22 Winden- Und Maschinenbau Gressbach Gmbh Suction device for lifting a workpiece by means of negative pressure
EP2460757B1 (en) * 2010-12-02 2013-03-27 Albert Fezer Maschinenfabrik GmbH Vacuum holding device
DE202016101453U1 (en) * 2016-03-16 2017-06-19 KS CONTROL Schneider/Ruhland GmbH Device for receiving, holding and / or positioning of flat workpieces, in particular glass plates

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Publication number Priority date Publication date Assignee Title
NL7113793A (en) * 1971-10-07 1973-04-10
DE3618704C1 (en) * 1986-06-04 1990-06-21 Kurt Dr Schmalz Lifting device with a suction box
CA2173858C (en) * 1993-11-04 2005-04-26 Christopher Luke Crozier Vacuum lifting device
DE202005016147U1 (en) * 2005-10-07 2005-12-22 J. Schmalz Gmbh Valve for vacuum lifting device, has radially moveable push button, integrated in handle, locking handle in one end position, where push button is moved along with handle during movement of handle
SE529625C2 (en) * 2006-02-17 2007-10-09 Pronomic Ab vacuum lifting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106144875A (en) * 2016-08-25 2016-11-23 上海涵勋自动化设备有限公司 A kind of wireless remote control vacuum absorbing and hoisting machine
CN109795943A (en) * 2019-02-13 2019-05-24 陈金芽 A kind of high altitude operation glass hanging equipment

Also Published As

Publication number Publication date
DE102009008203B3 (en) 2010-04-08
WO2010089270A1 (en) 2010-08-12
EP2393747A1 (en) 2011-12-14

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