EP1491173B1 - Vehicle lift for loads, especially for wheelchairs - Google Patents
Vehicle lift for loads, especially for wheelchairs Download PDFInfo
- Publication number
- EP1491173B1 EP1491173B1 EP04102659A EP04102659A EP1491173B1 EP 1491173 B1 EP1491173 B1 EP 1491173B1 EP 04102659 A EP04102659 A EP 04102659A EP 04102659 A EP04102659 A EP 04102659A EP 1491173 B1 EP1491173 B1 EP 1491173B1
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- EP
- European Patent Office
- Prior art keywords
- platform
- partial
- vehicle lift
- partial platform
- lift according
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
- A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
- A61G3/06—Transfer using ramps, lifts or the like
- A61G3/062—Transfer using ramps, lifts or the like using lifts connected to the vehicle
Definitions
- the invention relates to a vehicle lift for loads, in particular for wheelchairs, having a first part platform and at least one second part platform, of which the first part platform is movable about a horizontal pivot axis on a carrier by means of a parallelogram linkage containing the carrier with the motor vehicle is connectable and from a rest position, in which the sub-platforms occupy a substantially vertical position, can be brought by a pivoting movement about the pivot axis in a first working position in which the sub-platforms form an overall platform and from the total Platform by displacement parallel to itself in at least one other working position and can be brought back.
- Lifts mounted on vehicles have long been known. They serve to convey objects or persons from the interior of the vehicle to the outside and back, if between the level of the vehicle interior and the place to which the objects or persons are to be brought, a difference in height or a gap must be bridged. Find an important application Such lifts in vehicles where wheelchair users are transported.
- Known lifts have a platform which is moved by a lever system. There are three main positions for such lifts. The first position is the rest position during which the lift is not used. The platform is then in a vertical position, so that the entire lift has the smallest possible space and space requirements and does not interfere while driving.
- the platform In the second position, the platform is horizontally level with and adjacent to the vehicle floor so that, for example, wheelchair users can drive from the interior of the vehicle to the platform. In the third position, the platform is lowered parallel to itself and is at the exit level near the ground.
- the platform when the platform exceeds a certain size, it creates a nuisance in its rest position. This has a negative effect especially on vehicles with low height; There, a certain size of the platform can not be exceeded, otherwise the platform top would protrude in the rest position on the vehicle upwards. If you want to accommodate the lift in its rest position inside the vehicle, that is, behind a vehicle door, determines the door opening significantly the maximum dimensions of the platform.
- the platform consists of two articulated and pivotable about a first horizontal axis arranged platform elements. Together, the two elements are pivotable about a second, horizontal vehicle axle near the vehicle. In the first or rest position, the platform is collapsed.
- a lever arrangement with folding mechanism ensures that the initially vertically aligned two elements are pivoted about 90 ° about the two horizontal axes so that the two elements fold apart and into the common Horizontal plane of the second position.
- wheelchair users can be transported if the lift is moved from the second to the third position or from the third to the second position.
- the well-known folding mechanism is relatively expensive. It is therefore the object to propose a lift without such a folding mechanism.
- the solution according to the invention has the advantage that it is easy to implement. By slipping the plate elements past one another there is also a reduced risk of pinching fingers.
- Fig. 1 a perspective view of the lift with consisting of a first part platform and a second part platform, partially extended platform, without additional fold-out limitation,
- Fig. 2 a side view of the lift with fully extended platform
- Fig. 3 a side view of the lift with partially extended platform
- Fig. 4 a top view of the extended platform
- Fig. 5 a side view of the retracted lift with retracted platform
- Fig. 6 a side part of the first part platform
- Fig. 7 a side part of the second part platform, which is connected to the in Fig. 6 shown side part slides past during extension and the extension of the platform conditionally.
- a lift 10 is shown in perspective in a position referred to above as the third position.
- two mutually mirror-symmetrical stand 8 and 8 ' are fixed, to each of which an upper lever 12 or 12' and a parallel thereto extending lower lever 13 or 13 'by a respective articulation point 21, 23 (FIG. Fig. 2 ) are pivotally hinged at their ends.
- At the other end of the upper lever 12 and 12 'and the lower lever 13 and 13' is a edge profile 16 and 16 'pivoted about one pivot point 18 and 19 so pivotally that the pivot points 18, 19, 21, 23 the four corner points of one, from each of the uprights 8, 8 ', the parallel aligned levers 12, 12' and from the one end region of the associated edge profile 16, 16 'existing parallelogram form.
- a first part platform 28 is fixed, which has two side parts 30 and 30'.
- a second part platform 44 is slidably attached to this, the two side parts 42 and 42 'has.
- Fig. 2 shows the elevator in the second position, in which the sub-platforms form a common, horizontally oriented platform, which is located at the level of the vehicle interior.
- the lift 10 is moved by two hydraulic cylinders 11, 11 ', which run diagonally through the respective parallelogram and are pivotally mounted on the respective stand 8 in the articulation point 23, about which the lower lever 13 is also pivotable.
- the associated hydraulic unit is, as well as the associated control unit, not shown.
- a transverse edge profile 15 is pivotally mounted by means of a bearing pin 25 and pointing in the direction of the stand in its upper third.
- the free end of this transverse edge profile 15 is articulated by means of a joint 27 at one end of a support edge profile 14; the attachment of the other end of the support Kantprofiles is described below.
- a pivotable sliding block 17 carried by the joint 27.
- first part platform 28 At the lower end of the edge profile 16 is a bearing 26 and at the lower end of the support edge profile 14 is a bearing 26 offset from the bearing 8 in the direction of the bearing 20 for pivotally mounting the first part platform 28 is provided.
- the first sub-platform 28 is in the representation of Fig. 6 in the second or third position defined above, in which the platform assumes its horizontal position.
- the side part 30 of first part platform 28 ( Fig. 6 ) has a pin 32 which engages in the bearing 26 of the edge profile 16 and a pin 33 which is in engagement with the bearing 20.
- the second side part 30 ' ( Fig. 4 ) is constructed mirror-symmetrically to the side part 30. Analogously, each element described above has its symmetric counterpart to it in the manner described, which is identified by the corresponding reference symbol with an apostrophe.
- the side part 30 ' is connected to the side part 30 by two webs 48, which extend at right angles to the side parts 30 and 30'. At these webs 48 extending between these struts 50 are attached.
- the two outermost struts are attached to the side part 30 and 30 '.
- the two webs 48, as well as the struts 50 form a flat support for an expanded metal mesh 52. When the lift is in the second or third position in which the second part platform is extended, the expanded metal 52 forms a horizontally extending flat surface, on the loads, especially rolling and rolling can.
- a sliding block 66 ( Fig. 2 ), in which a pin 40 rotatably engages about a horizontal axis, which at the lower lever 13 facing the end of the side part 42 of the second part platform 44 (FIG. Fig. 7 ) is attached.
- the side guide of the sliding block takes on the inside of the sub-platform 28, the side part 42 and on the outside a disc 46 which is screwed to the sliding block 66 and has a diameter which is greater than the slot width.
- a fastening 22 for a cable 24 for a cable 24, the purpose of which will be described later.
- the rope 24 will normally be a steel rope.
- a deflection roller 36 Approximately in the middle of the side part 30 of the first part platform is a deflection roller 36 and at the end remote from the lower lever 13 of the side part 30 is a further guide roller 34 is provided around which the cable 24 and the sliding block 66 is guided on the it ends.
- the piston rod 68 of a gas spring 70 terminates.
- the sliding block 66 bears against the piston rod 68 under pressure. When retracted, it is according to Fig. 5 spaced from the piston rod.
- the cylinder of the gas spring 70 is attached to the guide roller 34 adjacent end of the slot 38 on the side part 30. If you exert a tensile force on the cable 24 in the attachment 22, the sliding block 66 moves to the Gas spring 70 and finally pushes the piston rod 68 into the cylinder of the gas spring.
- the side part 42 of the second part platform corresponds in its longitudinal extent approximately to that of the side part 30. In its middle section, the upper and lower edges of the side part 42 run parallel to one another.
- the lower lever 13 side facing the side part 42 on its underside a contour 53 which is designed so that the lower edge of the side part 42, when the second part platform 44 is extended, with the lower edge of the side part 30th flees.
- the upper edge of the side part 42 is aligned in this case with the upper edge of the side part 30.
- the contour 53 is also necessary, inter alia, so that the sub-platform 44 can slide into the sub-platform 28.
- the two side parts 42, 42 'of the second part platform are connected by means of two webs 54 ( Fig. 4 ). Between the two webs 54 are struts 56 and the two outermost struts are in turn attached to the two side members 42 and 42 '.
- the webs 54 and struts 56 together form a flat support for an expanded metal grid 58.
- the expanded metal meshes 52 and 58 of the two sub-platforms are gapless together in a horizontal plane.
- struts 56 are straight out to below the free ends of the side parts 42, 42 'out.
- a slot 62 is provided which, in the region in which the respective outer edges extend parallel to one another, likewise runs parallel to these and has its main section there.
- left portion of the side part of the slot 62 is angled to a steep portion and approaches toward the pin 40 at a predetermined angle (see Fig. 7 ) of the upper edge of the side part 42 at.
- a roller 60 runs on a pin 64 which on the side part 30 (FIG. Fig. 6 ) is attached.
- a fold-out roll-off protection 72 (FIG. Fig. 2 ).
- the fold-out roll stop 72 is folded up during the lifting and lowering movements of the lift, so that its upper side 74 with the expanded metal grid 58 forms an approximately right angle.
- the pivot point 23 of the cable 24 is displaced from the edge profile 16 to a point on the support edge profile 14, which is the hinge 27 closely adjacent.
- the relative position of the individual components of the lift to each other in the loading third position is in Fig.1 shown.
- the shoes 17, 17 'in this case have no contact with the levers 13, 13', so that the support edge profile 14 can exert no force on the pin 33 on the platform and the platform would pivot around the pin 32 down when they are not would be held by the ropes 24, 24 'in the drawn position relative to the edge profile 16.
- each rope 24, 24 ' is for this purpose chosen so that it presses the selected according to this force gas spring 70 at its retracted stop due to the force exerted by the weight of the platform force, correspondingly biases and thereby the relative position of platform and edge profile 16 secures each other.
- a downwardly acting force is exerted on the support edge profile 14, which shifts down relative to the edge profile 16.
- the support edge profile 14 are connected via the bearing 20 and the edge profile 16 via the bearing 26 and the pins 32 and 33 with the first part platform 28, the two sub-platforms 28 and 44 perform a pivoting movement in the counterclockwise direction the pin 32 from; at the same time the rope 24 is relieved.
- This relief of the rope means a corresponding decrease in the force exerted externally by the cable on the gas pressure spring 70, so that now the stored force in the gas spring can begin, via the piston rod 68 the sliding block 66 in the direction of the free end of the Slit 38 to move. Since the sliding block is connected on the one hand to the rope 24 and on the other hand via the pin 40 with the second part platform, the displacement of the sliding block on the one hand causes the rope 24 remains taut and on the other hand, that the second part platform 44 of the movement of the Kulissensteins follows and moves approximately parallel to its main plane in the area of the first part platform 28 into it.
- the second sub-platform 44 performs an additional pivotal movement in the counterclockwise direction. This is triggered by the course of the slot 62, in which the arranged on the first part-platform roller 60 is guided.
- the roller 60 is in the steep section of the slot. How to get the Fig. 3 can take place, causes the simultaneously occurring retraction that the second part platform is pulled in the region of the steep section of the slot 62 against the roller 60 located there. As a result, deviates the second part platform with an additional pivoting movement about the pin 40 around upwards. Overall, the second partial platform 44 thus initially performs a stronger pivotal movement than the first partial platform 28.
- Fig. 3 shows the state in which the distance between the roller 36 and the attachment 22 due to the pivotal movement of the upper lever 12 has shortened by an amount corresponding to the maximum extension length of the gas spring 70. In this case, this exerts no pressure on the sliding block 66 and thus no more train on the rope 24.
- the roller 60 in the slot 62 is then at the transition from the steep portion of the slot 62 in the straight main portion (kink).
- the slot 38 of the first part platform 28 extends after this first part of the pivoting movement now - seen from the upper lever 12 - no longer downwards, but slightly inclined upwards.
- the first part platform 28 and the second part platform 44 are positioned relative to one another in such a way that the expanded metal grids 52 and 58 run largely parallel to one another.
- the sliding block 66 is located at the gas spring 70 opposite end of the slot 38th
- the gas spring 70 serves the purpose of causing the first part of the Einschwenkamba the second part platform 44.
- the first sub-platform 28 and the second sub-platform 44 are tightly packed in a vertical orientation ( Fig. 5 ).
- the telescoping mechanism described for a first sub-platform and a second sub-platform can also be transferred to vehicle lifts whose first and second sub-platforms each consist of two sub-sub-platforms. These can, for example, in the rest position of the vehicle lift on in the U.S. Patent 6,086,314 be kind of unfolded. In the case of lifts whose width corresponds to the width of the vehicle door, it is possible to achieve in this way that, even in the rest position of the vehicle lift, a person can pass through the vehicle door into the vehicle interior by passing between the two parts of the sub-platforms.
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Abstract
Description
Die Erfindung betrifft einen Fahrzeuglift für Lasten, insbesondere für Rollstühle, mit einer ersten Teil-Plattform und mindestens einer zweiten Teil-Plattform, von denen die erste Teil-Plattform um eine horizontale Schwenkachse beweglich an einem Träger mittels eines den Träger enthaltenden Parallelogrammgestänges mit dem Kraftfahrzeug verbindbar ist und aus einer Ruhestellung, in der die Teil-Plattformen eine im Wesentlichen vertikale Position einnehmen, durch eine Schwenkbewegung um die Schwenkachse in eine erste Arbeitsstellung bringbar ist, in der die Teil-Plattformen eine Gesamt-Plattform bilden und aus der die Gesamt-Plattform durch Verschiebung parallel zu sich selbst in zumindest eine weitere Arbeitsstellung und zurück bringbar ist.The invention relates to a vehicle lift for loads, in particular for wheelchairs, having a first part platform and at least one second part platform, of which the first part platform is movable about a horizontal pivot axis on a carrier by means of a parallelogram linkage containing the carrier with the motor vehicle is connectable and from a rest position, in which the sub-platforms occupy a substantially vertical position, can be brought by a pivoting movement about the pivot axis in a first working position in which the sub-platforms form an overall platform and from the total Platform by displacement parallel to itself in at least one other working position and can be brought back.
An Fahrzeugen angebrachte Lifte sind seit langem bekannt. Sie dienen dazu, Gegenstände oder Personen aus dem Inneren des Fahrzeugs nach außen und zurück zu befördern, wenn zwischen dem Niveau des Fahrzeuginnenraums und der Stelle, an die die Gegenstände oder Personen gebracht werden sollen, ein Höhenunterschied besteht oder eine Lücke überbrückt werden muss. Eine wichtige Anwendung finden derartige Lifte in Fahrzeugen, in denen Rollstuhlfahrer transportiert werden.Lifts mounted on vehicles have long been known. They serve to convey objects or persons from the interior of the vehicle to the outside and back, if between the level of the vehicle interior and the place to which the objects or persons are to be brought, a difference in height or a gap must be bridged. Find an important application Such lifts in vehicles where wheelchair users are transported.
Bekannte Lifte weisen eine Plattform auf, die von einem Hebelsystem bewegt wird. Es können für derartige Lifte drei Haupt-Positionen unterschieden werden. Die erste Position ist die Ruheposition, während der der Lift nicht verwendet wird. Die Plattform befindet sich dann in einer vertikalen Lage, sodass der gesamte Lift einen möglichst geringen Raum- und Platzbedarf hat und während der Fahrt nicht stört.Known lifts have a platform which is moved by a lever system. There are three main positions for such lifts. The first position is the rest position during which the lift is not used. The platform is then in a vertical position, so that the entire lift has the smallest possible space and space requirements and does not interfere while driving.
In der zweiten Position liegt die Plattform horizontal auf einer Höhe mit dem Fahrzeugboden und an diesen anschließend, sodass beispielsweise Rollstuhlfahrer vom Inneren des Fahrzeugs auf die Plattform fahren können. In der dritten Position ist die Plattform parallel zu sich selbst abgesenkt und befindet sich auf dem Ausstiegsniveau in Bodennähe.In the second position, the platform is horizontally level with and adjacent to the vehicle floor so that, for example, wheelchair users can drive from the interior of the vehicle to the platform. In the third position, the platform is lowered parallel to itself and is at the exit level near the ground.
Wenn die Plattform aber eine gewisse Größe überschreitet, bildet sie in ihrer Ruheposition einen Störfaktor. Dies wirkt sich insbesondere bei Fahrzeugen mit geringer Höhe negativ aus; dort kann eine bestimmte Größe der Plattform nicht überschritten werden, da andernfalls die Plattformoberkante in der Ruhestellung über das Fahrzeug nach oben hinausragen würde. Will man den Lift in seiner Ruhestellung im Innern des Fahrzeugs, das heißt hinter einer Fahrzeugtür unterbringen, bestimmt die Türöffnung maßgeblich die maximalen Abmessungen der Plattform.But when the platform exceeds a certain size, it creates a nuisance in its rest position. This has a negative effect especially on vehicles with low height; There, a certain size of the platform can not be exceeded, otherwise the platform top would protrude in the rest position on the vehicle upwards. If you want to accommodate the lift in its rest position inside the vehicle, that is, behind a vehicle door, determines the door opening significantly the maximum dimensions of the platform.
In der
Der bekannte Klappmechanismus ist vergleichsweise aufwendig. Es ist daher die Aufgabe, einen Lift ohne einen solchen Klappmechanismus vorzuschlagen.The well-known folding mechanism is relatively expensive. It is therefore the object to propose a lift without such a folding mechanism.
Diese Aufgabe wird erfindungsgemäß mit den Mitteln des ersten Patentanspruchs gelöst, insbesondere also dadurch, dass die beiden Teil-Plattformen beim Schwenken aus der Ruhe- in die erste Arbeitsstellung geführt aneinander vorbeischiebbar sind.This object is achieved by the means of the first claim, in particular so that the two sub-platforms when pivoting from the rest to the first working position guided past one another.
Die erfindungsgemäße Lösung bietet den Vorteil, dass sie einfach zu realisieren ist. Durch das Aneinander-Vorbeischieben der Plattenelemente ergibt sich des Weiteren eine verringerte Gefahr des Einklemmens von Fingern.The solution according to the invention has the advantage that it is easy to implement. By slipping the plate elements past one another there is also a reduced risk of pinching fingers.
Vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen, sowie aus dem anhand der beigefügten Zeichnungen erläuterten Ausführungsbeispiel. Es zeigenAdvantageous embodiments of the invention will become apparent from the dependent claims, as well as from the illustrated with reference to the accompanying drawings embodiment. Show it
In
An den anderen Enden der Kantprofile 16, 16' ist eine erste Teil-Plattform 28 befestigt, die zwei Seitenteile 30 und 30' aufweist. An der ersten Teil-Plattform 28 ist wiederum eine zweite Teil-Plattform 44 zu dieser verschieblich angebracht, die zwei Seitenteile 42 und 42' aufweist.At the other ends of the edge profiles 16, 16 ', a
Am Kantprofil 16 ist in seinem oberen Drittel ein Quer-Kantprofil 15 mittels eines Lagerbolzens 25 schwenkbar und in Richtung auf den Ständer weisend befestigt. Das freie Ende dieses Quer- Kantprofils 15 ist mittels eines Gelenkes 27 an ein Ende eines Stütz-Kantprofils 14 angelenkt; die Befestigung des anderen Endes des Stütz-Kantprofiles ist nachstehend beschrieben. An der Verbindungsstelle von Quer-Kantprofil 15 und Stütz-Kantprofil 14 befindet sich ein vom Gelenk 27 getragener schwenkbarer Gleitschuh 17.On the
Am unteren Ende des Kantprofils 16 ist ein Lager 26 und am unteren Ende des Stütz-Kantprofils 14 ist ein vom Lager 26 in Richtung auf den Ständer 8 versetztes Lager 20 zur schwenkbaren Lagerung der ersten Teil-Plattform 28 vorgesehen. Die erste Teil-Plattform 28 befindet sich in der Darstellung der
Über einen großen Teil seiner Längserstreckung verläuft im Seitenteil 30 ein gradliniger Schlitz 38, der in der Nachbarschaft des Lagers 26 und benachbart zur in
Das zweite Seitenteil 30' (
Im Schlitz 38 des Seitenteils 30 läuft ein Kulissenstein 66 (
Am Ende des oberen Drittels des Kantprofils 16 befindet sich eine Befestigung 22 für ein Seil 24, dessen Zweck später beschrieben wird. Das Seil 24 wird normalerweise ein Stahlseil sein. Etwa in der Mitte des Seitenteils 30 der ersten Teil-Plattform ist eine Umlenkrolle 36 und an dem dem unteren Hebel 13 abgewandten Ende des Seitenteils 30 ist eine weitere Umlenkrolle 34 vorgesehen, um die das Seil 24 herum und zum Kulissenstein 66 geführt ist, an dem es endet.At the end of the upper third of the
An dem der Umlenkrolle 34 zugewandten Ende des Kulissensteins 66 endet die Kolbenstange 68 einer Gasdruckfeder 70. Im ausgezogenen Zustand der Plattform liegt der Kulissenstein 66 unter Druck an der Kolbenstange 68 an. Im eingefahrenen Zustand ist er gemäß
Das Seitenteil 42 der zweiten Teil-Plattform entspricht in seiner Längsausdehnung etwa der des Seitenteils 30. In seinem mittleren Abschnitt verlaufen Ober- und Unterkante des Seitenteils 42 parallel zu einander. Auf der in
Die beiden Seitenteile 42, 42' der zweiten Teil-Plattform sind mittels zweier Stege 54 verbunden (
Wie
Im Seitenteil 42 (
An dem dem Zapfen 40 abgewandten Ende der zweiten Teil-Plattform 44 befindet sich eine ausklappbare Abrollsicherung 72 (
In einer nicht dargestellten, jedoch bevorzugten Ausführungsform ist der Anlenkpunkt 23 des Seils 24 vom Kantprofil 16 verlegt zu einer Stelle am Stütz-Kantprofil 14, die dem Gelenk 27 dicht benachbart ist.In a non-illustrated, but preferred embodiment, the pivot point 23 of the
Beschreibung der Funktion des LiftsDescription of the function of the lift
Die relative Stellung der einzelnen Komponenten des Lifts zueinander in der dem Beladen dienenden dritten Position ist in
Die Länge jedes Seils 24, 24' ist zu diesem Zweck so gewählt, dass es aufgrund der vom Gewicht der Plattform auf das Seil ausgeübten Kraft die entsprechend dieser Kraft ausgewählte Gasdruckfeder 70 an deren eingefahrenen Anschlag presst, entsprechend vorspannt und hierdurch die relative Stellung von Plattform und Kantprofil 16 zueinander sichert.The length of each
Wird in dieser Stellung der Komponenten der Hydraulikzylinder 11 ausgefahren, vergrößert sich der Abstand der Anlenkpunkte 23 und 18, wodurch das Kantprofil 16 eine Parallelverschiebung in Bezug auf den Ständer 8 nach oben ausführt, bis die Gleitschuhe 17, 17' in Kontakt mit den unteren Hebeln 13, 13' gelangen. Bis zu diesem Zeitpunkt wird durch die Parallelverschiebung der Kantprofile 16, 16' und die Wirkung der Seile 24, 24' sicher gestellt, dass die Plattform ihre horizontale Ausrichtung beibehält. In dem Moment, in dem die Gleitschuhe in Kontakt mit den unteren Hebeln 13, 13' gelangt sind, befindet sich die Plattform in ihrer in
Wird der Hydraulikzylinder 11 nun weiter ausgefahren, verschiebt sich das Kantprofil 16 weiter nach oben. Dabei verkleinert sich der Winkel zwischen dem unteren Hebel 13 und dem Kantprofil 16, sodass sich der Anlenkpunkt 25 auf den unteren Hebel 13 zubewegt. Diese Bewegung drückt den Gleitschuh 17 am unteren Hebel 13 entlang in Richtung auf den Anlenkpunkt 23 zu.If the
Dabei wird eine nach unten wirkende Kraft auf das Stütz-Kantprofil 14 ausgeübt, das sich relativ zum Kantprofil 16 nach unten verschiebt. Dadurch, dass das Stütz-Kantprofil 14 über das Lager 20 und das Kantprofil 16 über das Lager 26 und die Zapfen 32 und 33 mit der ersten Teil-Plattform 28 verbunden sind, führen die beiden Teil-Plattformen 28 und 44 eine Schwenkbewegung im Gegenuhrzeigersinn um den Zapfen 32 aus; gleichzeitig wird das Seil 24 entlastet.In this case, a downwardly acting force is exerted on the
Diese Entlastung des Seils bedeutet eine entsprechende Abnahme der von außen vom Seil auf die Gasdruckfeder 70 ausgeübten Kraft, so dass nun die in der Gasdruckfeder gespeicherte Kraft beginnen kann, über die Kolbenstange 68 den Kulissenstein 66 in Richtung auf das freie Ende des Schlitzes 38 zu schieben. Da der Kulissenstein einerseits mit dem Seil 24 und andererseits über den Zapfen 40 mit der zweiten Teil-Plattform verbunden ist, bewirkt das Verschieben des Kulissensteins einerseits, dass das Seil 24 straff gespannt bleibt und andererseits, dass die zweite Teil-Plattform 44 der Bewegung des Kulissensteins folgt und sich etwa parallel zu ihrer Hauptebene in den Bereich der ersten Teil-Plattform 28 hinein bewegt.This relief of the rope means a corresponding decrease in the force exerted externally by the cable on the
Neben der gemeinsamen Schwenkbewegung der Teil-Plattformen und der Einfahrbewegung auf die erste Teil-Plattform 28 zu, führt die zweite Teil-Plattform 44 eine zusätzliche Schwenkbewegung im Gegenuhrzeigersinn aus. Diese wird ausgelöst durch den Verlauf des Schlitzes 62, in dem die an der ersten Teil-Plattform angeordnete Rolle 60 geführt ist.In addition to the common pivoting movement of the sub-platforms and the retraction movement to the
Zu Beginn der Schwenkbewegung beider Teil-Plattformen befindet sich die Rolle 60 im Steilabschnitt des Schlitzes. Wie man der
Bei der Bewegung aus dem in
Am Ende der Einfahrbewegung liegen die erste Teil-Plattform 28 und die zweite Teil-Plattform 44 so zueinander, dass die Streckmetallgitter 52 und 58 weitgehend parallel zueinander verlaufen. Der Kulissenstein 66 befindet sich an dem der Gasdruckfeder 70 gegenüber liegende Ende des Schlitzes 38.At the end of the retraction movement, the
An der vorstehenden Schilderung der verschiedenen Bewegungsabläufe ist erkennbar, dass die Gasdruckfeder 70 dem Zweck dient, den ersten Teil der Einschwenkbewegung der zweiten Teil-Plattform 44 zu bewirken.From the above description of the various movements it can be seen that the
Am Ende der Schwenkbewegung liegen die erste Teil-Plattform 28 und die zweite Teil-Plattform 44 in vertikaler Orientierung dicht gepackt aneinander (
Der für eine erste Teil-Plattform und eine zweite Teil-Plattform beschriebene Teleskopiermechanismus kann auch auf Fahrzeuglifte übertragen werden, deren erste und zweite Teil-Plattform jeweils aus zwei Unter-Teil-Plattformen bestehen. Diese können beispielsweise in der Ruhestellung des Fahrzeuglifts auf die in der
Claims (15)
- A vehicle lift for loads, in particular for wheelchairs, having a first partial platform (28) and at least a second partial platform (44), of which the first partial platform (28) is secured to a support (16) so as to be movable about a horizontal pivot axis (26), is connectable to the motor vehicle by means of a parallelogram lever arrangement (8,12,13,16, 8', 12', 13', 16') comprising the support and can be moved, through pivoting about the pivot axis, from a rest position in which the partial platforms occupy a substantially vertical position into a first operating position in which the partial platforms (28, 44) form a complete platform and from which the complete platform can be moved into at least one additional operating position and back again through displacement parallel to itself, characterised in that the second partial platform (44) is telescopably secured and guided on the first partial platform (28), and in that at least one cable (24) is at one end attached, at a distance from the pivot axis, to an element (16, 14) movable relative to the partial platforms and is by means of its other end secured to the second partial platform in such a manner and guided such that the second partial platform (44) is during pivoting moved, substantially parallel to its main plane, from the first partial platform and during counter pivoting moved into the first partial platform.
- A vehicle lift according to claim 1, whose first partial platform (28) has two lateral parts (30, 30') at a distance from one another in each of which a respective rectilinear slot (38) beginning in the vicinity of the pivot axis runs from the region of the edges, lying at the top in the operating positions of the first partial platform, of the lateral parts (30, 30') obliquely in the direction of the other edges of the lateral parts.
- A vehicle lift according to claim 2, whose second partial platform (44) likewise has on either side a respective lateral part (42) in which there is formed a slot (62) which, when the second partial platform is in the operating position, has, beginning approximately halfway along the longitudinal extension of the latter and in the vicinity of the upper edge of the lateral part (42), first of all a steep portion running downwards as far as a bend and then running substantially horizontally in its main portion after the bend.
- A vehicle lift according to claim 2, characterised in that a respective sliding block (66) travels in each of the two slots (38) of the first partial platform, and at these sliding blocks the second partial platform (44) is secured so as to be pivotable about a horizontal axis (40).
- A vehicle lift according to claim 4, characterised in that from its articulation point on the support (16), the cable (24) is led first of all over a first roller (36) secured to the lateral part (30) of the first partial platform (28) approximately halfway along the longitudinal extension thereof, then over a second roller (34) attached to that end of the lateral part (42) remote from the pivot axis (26), to its articulation point on the sliding block (66).
- A vehicle lift according to one of claims 4 and 5, having at least one respective gas pressure spring (70), secured to the lateral parts (30), to tauten the associated cable (24).
- A vehicle lift according to claim 6, characterised in that the gas pressure springs (70) engage the associated sliding block (66).
- A vehicle lift according to one of claims 6 and 7, characterised in that at least upon pivoting of the partial platforms from their working position into their rest position, the gas pressure spring (70) tautens the associated cable (24) until the second partial platform is slideable in the slot (62) in the direction of the parallelogram lever arrangement, solely due to its gravitational force and the inclination of the slot (62) to the horizontal.
- A vehicle lift according to claim 8, characterised in that the gas pressure spring (70) tautens the associated cable (24) at least until the gravitational force of the second partial platform takes over tautening of the cable.
- A vehicle lift according to at least one of claims 3 - 9, characterised by a respective roller (60) with a horizontal axis of rotation, which roller is provided at that end of the lateral parts of the first partial platform remote from the pivot axis, engages the associated slot (62) running along the lateral parts of the second partial platform and is guided there.
- A vehicle lift according to claim 9, in which the bend in the slot (62) is located at the site which receives the roller (60) when the slot of the first partial platform is horizontal during pivoting.
- A vehicle lift according to at least one of claims 4 - 11, in which the at least one cable (24) is such in length that the first partial platform is horizontal when the sliding block (66) is located at the end, remote from the pivot axis (26), of the slot (38) accompanied by full pretensioning of the gas pressure spring (70).
- A vehicle lift according to claim 12, in which the cable or the cables (24, 24') form/forms the holding means for the first partial platform when it is horizontal.
- A vehicle lift according to at least one of the preceding claims, in which an articulated lever structure, composed of a supporting edge-profile (14) and a transverse edge-profile (15) connected thereto by means of an articulation (27), is provided for the transfer of the partial platforms from their operating position into the rest position, characterised in that the cable (24) is secured at one end and at a distance from the bearing (26) of the first partial platform (28) to the articulated lever structure, in particular to the supporting edge-profile (14) and adjacent to the articulation (27).
- A vehicle lift according to claim 1, in which the second partial platform (44) incorporates further subplatforms.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20309868U | 2003-06-25 | ||
DE20309868U DE20309868U1 (en) | 2003-06-25 | 2003-06-25 | Vehicle lift for loads, especially for wheelchairs |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1491173A1 EP1491173A1 (en) | 2004-12-29 |
EP1491173A9 EP1491173A9 (en) | 2005-07-06 |
EP1491173B1 true EP1491173B1 (en) | 2008-06-18 |
Family
ID=33395179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04102659A Expired - Lifetime EP1491173B1 (en) | 2003-06-25 | 2004-06-11 | Vehicle lift for loads, especially for wheelchairs |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1491173B1 (en) |
AT (1) | ATE398435T1 (en) |
DE (2) | DE20309868U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2463886A (en) * | 2008-09-26 | 2010-03-31 | Passenger Lift Services Ltd | Wheelchair lift for a vehicle |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1033716C2 (en) * | 2007-04-18 | 2008-10-21 | Pieter John Van Mullekom | Lift device for a vehicle. |
DE202009002451U1 (en) | 2009-02-23 | 2009-06-10 | Kollewe, Dieter, Dr. | Cargo lift for a motor vehicle |
DE202012002832U1 (en) | 2012-03-21 | 2013-06-25 | Gustav Bruns Maschinenbau und Förderanlagen GmbH & Co. KG | Vehicle lift with pretensioner |
DE202012002833U1 (en) | 2012-03-21 | 2013-06-24 | Gustav Bruns Maschinenbau und Förderanlagen GmbH & Co. KG | vehicle lift |
EP2641575B1 (en) | 2012-03-21 | 2015-05-13 | AMF-Bruns GmbH & Co. KG | Vehicle lift with pre-tensioning device |
EP2641576B1 (en) | 2012-03-21 | 2015-04-22 | AMF-Bruns GmbH & Co. KG | Vehicle lift |
ITMI20130378A1 (en) * | 2013-03-13 | 2014-09-14 | Car Oil System S P A | LIFT FOR WHEELCHAIRS, PARTICULARLY FOR VEHICLES USED FOR THE TRANSPORT OF PERSONS DIFFERENTLY ABLE. |
DK2818148T3 (en) | 2013-06-24 | 2019-05-06 | Autolift S R L | Wheelchair Lift |
CN103735372B (en) * | 2014-01-14 | 2016-08-24 | 深圳市汇利堡汽车技术开发有限公司 | Lowering or hoisting gear and foldable platforms mechanism, foldable module and method for designing |
CN106798614B (en) * | 2017-01-24 | 2018-10-30 | 肖三美 | A kind of happiness vehicle |
DE102017110003A1 (en) * | 2017-05-09 | 2018-11-15 | MCS medical concept solutions GmbH | Fastening device for attaching a chest compressing system |
DE102019203460A1 (en) * | 2019-03-14 | 2020-09-17 | Siemens Healthcare Gmbh | Patient table with a support surface for a patient |
US20220323276A1 (en) * | 2021-04-12 | 2022-10-13 | Scott Ivan Fenton | Extendable platform lift assembly |
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US4479753A (en) * | 1982-05-19 | 1984-10-30 | Transportation Design & Technology, Inc. | Wheelchair lift for passenger vehicles |
DE3838560A1 (en) * | 1988-11-14 | 1990-05-17 | Ibeg Masch & Geraetebau | Liftable and lowerable entrance for vehicles |
US4984955A (en) * | 1989-02-23 | 1991-01-15 | Mccullough Robert C | Lift apparatus |
DE3922511C2 (en) * | 1989-07-08 | 1998-03-12 | Evobus Gmbh | Lifting device |
US5445488A (en) * | 1992-07-28 | 1995-08-29 | Ricon Corporation | Locking wheelchair lift |
DE19503079C2 (en) * | 1995-02-01 | 1998-07-09 | Deutsche Waggonbau Ag | Drive-over ramp for wheelchair users in vehicles with low-floor entrances, especially passenger coaches |
JP3745044B2 (en) * | 1996-09-17 | 2006-02-15 | 株式会社オーテックジャパン | Lifting device for vehicle wheelchair |
US6086314A (en) | 1997-08-15 | 2000-07-11 | Ricon Corporation | Foldable platform wheelchair lift |
JP4344816B2 (en) | 1998-05-29 | 2009-10-14 | ライコン・コーポレイション | Wheelchair lift with folding boarding platform |
DE29902687U1 (en) * | 1999-02-16 | 1999-05-20 | MBB Liftsystems AG, 27777 Ganderkesee | Lifting device for vehicles to make it easier for people with reduced mobility to get in and out |
US6692217B1 (en) * | 1999-04-29 | 2004-02-17 | The Braun Corporation | Liftable platform having isolated hydraulically-moveable rollstop |
-
2003
- 2003-06-25 DE DE20309868U patent/DE20309868U1/en not_active Expired - Lifetime
-
2004
- 2004-06-11 EP EP04102659A patent/EP1491173B1/en not_active Expired - Lifetime
- 2004-06-11 AT AT04102659T patent/ATE398435T1/en active
- 2004-06-11 DE DE502004007375T patent/DE502004007375D1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2463886A (en) * | 2008-09-26 | 2010-03-31 | Passenger Lift Services Ltd | Wheelchair lift for a vehicle |
GB2463886B (en) * | 2008-09-26 | 2012-07-18 | Passenger Lift Services Ltd | Lifts |
US8562279B2 (en) | 2008-09-26 | 2013-10-22 | Passenger Lift Services Limited | Lifts |
Also Published As
Publication number | Publication date |
---|---|
ATE398435T1 (en) | 2008-07-15 |
EP1491173A9 (en) | 2005-07-06 |
EP1491173A1 (en) | 2004-12-29 |
DE502004007375D1 (en) | 2008-07-31 |
DE20309868U1 (en) | 2004-11-04 |
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