EP3737633B1 - Hydraulische hebestruktur mit vertikaler hubbewegung für kraftfahrzeuge und ähnliche fahrzeuge - Google Patents

Hydraulische hebestruktur mit vertikaler hubbewegung für kraftfahrzeuge und ähnliche fahrzeuge Download PDF

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Publication number
EP3737633B1
EP3737633B1 EP19783686.9A EP19783686A EP3737633B1 EP 3737633 B1 EP3737633 B1 EP 3737633B1 EP 19783686 A EP19783686 A EP 19783686A EP 3737633 B1 EP3737633 B1 EP 3737633B1
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EP
European Patent Office
Prior art keywords
hinged
lift structure
hydraulic lift
lateral sliding
height
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Application number
EP19783686.9A
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English (en)
French (fr)
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EP3737633C0 (de
EP3737633A1 (de
Inventor
Vittorino CAPPUCCI
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Werther International SpA
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Werther International SpA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0691—Asymmetric linkages, i.e. Y-configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0658—Multiple scissor linkages horizontally arranged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions

Definitions

  • the invention concerns a hydraulic lift structure with vertical lifting movement for motor vehicles and similar vehicles.
  • the hydraulic lifts currently known and widely used in garages are designed to lift a vehicle from the ground in order to allow a technician to comfortably access the lower part and the bottom of said vehicle.
  • Said known hydraulic lifts generally comprise two bearing platforms which extend longitudinally and are arranged parallel to each other, each one of which is translated in vertical direction by corresponding lifting means, said lifting means being anchored to the ground through corresponding base elements.
  • Said lifting means are generally constituted by a central scissors or pantograph system.
  • Such a central lifting system constitutes an important limitation due to the fact that the hinge of the scissors system or the hinges of the pantograph system are positioned under the central area of the bearing platforms.
  • Said central position of the hinges of the central lifting systems prevents a technician from passing under the central areas of the platforms or to stay under them in order to carry out any operation, which consequently leads to uncomfortable situations and lengthens the operating times.
  • hydraulic lifts have been designed in which the lifting means are constituted, for each longitudinal bearing platform, by one pair of opposite articulated arms, each one of which is positioned under one end of a longitudinal bearing platform.
  • Said articulated arms are of the type with two members hinged to each other by means of a central revolute joint.
  • Each articulated arm comprises:
  • Each of said articulated arms is moved by corresponding hydraulic actuators configured to rotate the two members of an articulated arm with respect to each other, thus obtaining
  • a similar hydraulic lift with lifting system with lateral articulated arms makes it possible to clear the central area under the longitudinal platforms, with consequent advantages for an operator who needs to pass or to stay under the platforms in order to carry out an operation.
  • a hydraulic lift structure with vertical lifting movement according to the invention is indicated as a whole by the numeral 10.
  • Said hydraulic lift structure 10 with vertical lifting movement is of the type comprising:
  • a first articulated arm 14 comprises:
  • a second articulated arm 15 comprises:
  • both the first and the second articulated arms designed to lift the same bearing platform are like the first member 20 , that is, hinged at a first end 21 to a corresponding base element 16 , hinged at a central portion 22 thereof to the second member 23 and hinged at their opposite second end 24 to a slide 25 which runs under a corresponding bearing platform 11 and 12 through sliding means 26 .
  • the lifting means 13 obviously comprise hydraulic actuators 40 designed to set the articulated arms 14 and 15 moving.
  • Each of the two bearing platforms 11 and 12 for example the platform indicated by 11 in Figure 3 , comprises a plate 11a , made of a metallic material and extending mainly in longitudinal direction, which is reinforced at its bottom by a plurality of longitudinal members 11b and cross members 11c alternating in such a way as to define a reinforcement frame.
  • Each of the base elements 16 and 17 which serve to anchor the articulated arms 14 and 15 to the ground, comprises, by way of example, a metallic plate suited to be fixed to the ground.
  • connection bars 41 suited to make the installation of the hydraulic lift structure 10 more rapid, more precise and more resistant.
  • each of the members 20 , 23 , 30 , 33 of the first articulated arm 14 and of the second articulated arm 15 comprises two symmetrical bars, for example 20a and 20b for the first member 20 and 23a and 23b for the second member 23 of the first articulated arm 14 , as clearly shown in Figure 4 .
  • Said two symmetrical bars 20a and 20b are joined by means of strengthening intermediate elements 20c , shown by way of example in Figure 1 and in Figure 3 .
  • the symmetrical bars 23a and 23b of the second member 23 of the first articulated arm 14 as well as the symmetrical bars of the second member 33 of the second articulated arm 15 are joined by a bracket, respectively 23c and 33c.
  • each of the members 20 , 23 , 30 , 33 must be intended as capable of being constituted either by a single rigid body or by a group of bodies joined to one another in such a way as to form a single rigid assembly, as described in this example of embodiment.
  • the first member 20 is hinged with a first end 21 to a corresponding base element 16 by means of two lower coaxial pins 50 .
  • Said first member 20 is hinged in a central portion 22 thereof to the second member 23 by means of two central coaxial pins 51 , one for each symmetrical bar.
  • Said first member 20 is hinged with its opposite second end 24 to the slide 25 by means of a movable upper pin 52 .
  • the second member 23 is hinged with its opposite second end 28 to the bearing platform 11 or 12 by means of an upper fixed pin 53 .
  • the first member 30 and the second member 33 of the second articulated arm 15 must be intended as hinged to each other in the same way.
  • the first articulated arm 14 and the second articulated arm 15 are extended and folded in such a way that the central coaxial pins 51 remain always under the bearing platforms 11 and 12.
  • the hydraulic lift structure 10 makes it possible to provide a space where one can stay and transit, like the space provided in the hydraulic lifts of the known type, under each bearing platform 11 and 12 when said bearing platforms 11 and 12 are lifted in the configuration of use, and at the same time to provide also a reinforcing strut which in each bearing platform 11 and 12 is constituted by the respective first arm 14.
  • the first arm 14 serves the function of a strut, transmitting the forces that are concentrated in the central area of the bearing platforms 11 and 12 to the ground.
  • the hydraulic actuators 40 comprise two paired hydraulic cylinders 40a and 40b for each articulated arm 14 and 15 , each of said hydraulic cylinders being hinged with one end to a first corresponding member 20 or 30 , through the interposition of a sleeve 40c which is visible in Figure 4 , and with the opposite end to the bracket 23c or 33c of the second corresponding member 23 or 33 .
  • the slide 25 which runs under a corresponding bearing platform 11 and 12 through sliding means 26 , comprises two lateral sliding blocks 60 and an upper movable pin 52 whose ends are each constrained to one of said lateral sliding blocks 60 , as can be clearly seen in Figure 5 .
  • the sliding means 26 comprise, by way of non-limiting example of the invention, two opposite longitudinal guide sections, respectively 61 and 62 , positioned under the plate 11a of each platform 11 and 12 .
  • An important detail of the invention is constituted by the lateral sliding blocks 60 .
  • Each lateral sliding block 60 comprises means for adjusting its height H .
  • a lateral sliding block 60 is clearly shown in Figures from 6 to 11.
  • a lateral sliding block 60 comprises an upper part 63 and a lower part 64 which slide with respect to each other in the direction defined by the height H.
  • a hole 65 designed to house one end of the movable upper pin 52 is defined in the lower part 64.
  • the lower part 64 is positioned between two vertical guide shoulders 66 of the upper part 63.
  • the means for adjusting the height H comprise one or more manoeuvring dowels 67 , for example two manoeuvring dowels 67 , positioned in two corresponding counter threaded through holes 68 defined in the lower part 64.
  • the manoeuvring dowels 67 are oriented in such a way as to make it possible to space the upper part 63 from the lower part 64 by screwing them.
  • manoeuvring dowels 67 are positioned in such a way as to operate in vertical direction with respect to a configuration of use of the hydraulic lift structure 10 according to the invention, that is, the same direction defined by the height H of the lateral sliding block 60 itself.
  • corresponding thrust plates 69 are interposed between the upper part 63 and the lower part 64 , wherein said thrust plates are suited to preserve the integrity of the upper part 63 against any contact with the corresponding manoeuvring dowel 67.
  • Each lateral sliding block 60 comprises also stabilization means designed to stabilize the mutual position of the upper part 63 and the lower part 64.
  • Said position stabilization means are constituted by locking dowels 70 configured to be placed into contact with the manoeuvring dowels 67 and prevent them from moving.
  • said locking dowels 70 are inserted in corresponding transverse threaded holes 71 defined in the lower part 64 and configured to be opened towards the through holes 68 of the manoeuvring dowels 67.
  • Figure 12 shows a lateral sliding block 60 in a configuration in which the lower part 64 does not project at the bottom from the outline of the upper part 63 and the lateral sliding block 60 has a minimum height H1.
  • Figure 13 shows a lateral sliding block 60 in an intermediate configuration.
  • Figure 14 shows a lateral sliding block 60 in a configuration in which the lower part 64 projects at the bottom from the outline of the upper part 63 and the lateral sliding block 60 has a maximum height H2.
  • the height H2 is defined by the distance between the upper surface 63a of the upper part 63 of the sliding block 60 and the lower surface 64b of the lower part 64.
  • the adjustable lateral sliding blocks 60 make it possible to optimize the lifting and lowering movements of the bearing platforms 11 and 12 , eliminating the plays between the same lateral sliding blocks and the guide sections 61 and 62 that accommodate them.
  • Said lateral sliding blocks 60 thus contribute also to the elimination of the downward deflection of the bearing platform 11 or 12 to which they are constrained.
  • the lifting means 13 also comprise, for each one of the articulated arms 14 and 15 , a safety locking device 80 , illustrated in Figures 15 and 16 , configured to maintain the bearing platforms 11 and 12 coplanar in a stable manner, that is, to maintain the bearing platforms 11 and 12 at the same height and lying horizontally; said safety locking device 80 has the secondary function of mechanically preventing the undesired lowering of the platforms 11 and 12 in case of malfunction of the hydraulic actuators 40.
  • said safety locking device 80 comprises
  • the movable anti translation insert 83 and the saw teeth 82 are shaped in such a way that the sliding movement of the toothed rod 81 is allowed in the direction of extension of the hydraulic cylinders 40a and 40b , while it is prevented in the opposite direction.
  • the invention provides a hydraulic lift structure which, thanks to the first arms directly connected between the ground and the central areas of the corresponding bearing platforms, makes it possible to compensate for the twisting action of the bearing platforms that occurs in the case where a vehicle is positioned on the same bearing platforms with unbalanced loads, more on the right of each platform or more on the left with respect to an ideal central loading position.
  • the invention provides a hydraulic lift structure in which the central part of the platforms is supported in a stable and safe manner and at the same time under the same central areas of the platforms there are no obstacles that are such as to prevent the passage of an operator.
  • the invention provides a hydraulic lift structure in which, thanks to the lateral sliding blocks with adjustable height, the sliding system of the ends of the first arms that are constrained under the respective platforms allows an optimal movement and at the same time an optimal transmission of loads from the platforms to the ground.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Invalid Beds And Related Equipment (AREA)

Claims (7)

  1. Hydraulische Hebevorrichtung (10) mit vertikaler Hebebewegung, insbesondere für Kraftfahrzeuge und ähnliche Fahrzeuge, die folgende Elemente umfasst:
    - zwei parallel zueinander angeordnete Tragplattformen (11, 12);
    - Hebemittel (13), die so konfiguriert sind, dass sie die besagten Tragplattformen (11, 12) in vertikaler Richtung bewegen, wobei die besagten Hebemittel (13) für jede Tragplattform (11, 12) ein Paar von gegenüberliegenden Gelenkarmen (14, 15) umfassen, von denen jeder unter einem Endabschnitt einer Tragplattform (11, 12) positioniert ist;
    - Sockelelemente (16, 17) zur Verankerung der besagten Gelenkarme (14, 15) am Boden;
    wobei in jedem Gelenkarme-Paar (14, 15) mindestens ein erster Gelenkarm (14) folgende Elemente umfasst:
    - ein erstes Glied (20), wobei das besagte erste Glied (20) mit einem ersten Ende (21) an einem entsprechenden Sockelelement (16) angelenkt ist, in einem mittleren Abschnitt (22) davon an einem zweiten Glied (23) angelenkt ist und mit seinem gegenüberliegenden zweiten Ende (24) an einem Schlitten (25) der besagten hydraulischen Hebevorrichtung (10) angelenkt ist, wobei der Schlitten (25) unter der besagten entsprechenden Tragplattform (11, 12) durch Gleitmittel (26) der besagten hydraulischen Hebevorrichtung (10) läuft, wobei der besagte Schlitten (25) zwei Seitengleitblöcke (60) und einen beweglichen oberen Stift (52) umfasst, wobei die Enden des besagten beweglichen oberen Stifts (52) jeweils an einem der besagten Seitengleitblöcke (60) befestigt sind;
    - das zweite Glied (23), wobei das besagte zweite Glied (23) an seinem ersten Ende (27) an dem besagten mittleren Abschnitt (22) des besagten ersten Glieds (20) angelenkt ist und mit seinem gegenüberliegenden zweiten Ende (28) an der entsprechenden Tragplattform (11, 12) angelenkt ist,
    dadurch gekennzeichnet, dass jeder Seitengleitblock (60) Mittel zum Einstellen seiner Höhe (H) umfasst, wobei die besagte Höhe (H) die Höhe (H) des Seitengleitblocks (60) selbst ist, wobei der besagte Seitengleitblock (60) einen oberen Teil (63) und einen unteren Teil (64) umfasst, die in Bezug zueinander in der durch die besagte Höhe (H) definierten Richtung gleiten, wobei die besagten Mittel zum Einstellen der besagten Höhe (H) einen oder mehrere Betätigungsdübel (67) umfassen, der/die in zwei entsprechenden, mit Gegengewinde versehenen Durchgangslöchern (68) angeordnet ist/sind, die in dem besagten unteren Teil (64) definiert sind.
  2. Hydraulische Hebevorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der besagte Seitengleitblock (60) so konfiguriert ist, dass erfolgende Merkmale aufweist:
    - eine Konfiguration mit minimaler Höhe (H1), bei welcher der besagte untere Teil (64) unten nicht über den Umriss des oberen Teils (63) hinausragt und der Seitengleitblock (60) eine minimale Höhe (H1) aufweist;
    - eine Konfiguration mit maximaler Höhe (H2), bei welcher der besagte untere Teil (64) unten nicht über den Umriss des besagten oberen Teils (63) hinausragt und der Seitengleitblock (60) eine maximale Höhe (H2) aufweist;
    wobei die besagte Höhe (H2) durch den Abstand zwischen einer oberen Oberfläche (63a) des besagten oberen Teils (63) des Seitengleitblocks (60) und einer unteren Oberfläche (64b) des besagten unteren Teils (64) definiert ist.
  3. Hydraulische Hebevorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass in jedem Gelenkarm-Paar (14, 15) ein zweiter Gelenkarm (15) folgende Elemente umfasst:
    - ein erstes Glied (30), wobei das besagte erste Glied (30) an einem ersten Ende (31) an einem entsprechenden Sockelelement (17) angelenkt ist und mit seinem gegenüberliegenden zweiten Ende (34) an einem zweiten Glied (33) angelenkt ist;
    - ein zweites Glied (33), wobei das besagte zweite Glied (33) mit einem ersten Ende (37) desselben an einem zweiten Ende (34) des besagten ersten Glieds (30) angelenkt ist und mit seinem gegenüberliegenden zweiten Ende (38) an der entsprechenden Tragplattform (11, 12) angelenkt ist.
  4. Hydraulische Hebevorrichtung nach einem oder mehreren der vorhergehenden Patentansprüche, dadurch gekennzeichnet, dass die besagten Hebemittel (13) hydraulische Stellglieder (40) umfassen, die dazu bestimmt sind, die besagten Gelenkarme (14, 15) in Bewegung zu setzen.
  5. Hydraulische Hebevorrichtung nach einem oder mehreren der vorhergehenden Patentansprüche, dadurch gekennzeichnet, dass jedes der Glieder (20, 23, 30, 33) des ersten Gelenkarms (14) und des zweiten Gelenkarms (15) zwei symmetrische Stangen (20a, 20b, 23a, 23b) umfasst.
  6. Hydraulische Hebevorrichtung nach Patentanspruch 4, dadurch gekennzeichnet, dass das besagte erste Glied (20) mit einem ersten Ende (21) an einem entsprechenden Sockelelement (16) mittels zweier unterer koaxialer Stifte (50) angelenkt ist, in einem mittleren Abschnitt (22) desselben an dem zweiten Glied (23) mittels zweier mittlerer koaxialer Stifte (51), einem für jede symmetrische Stange, angelenkt ist und mit seinem gegenüberliegenden zweiten Ende (24) an dem besagten Schlitten (25) mittels eines beweglichen oberen Stifts (52) angelenkt ist.
  7. Hydraulische Hebevorrichtung nach Patentanspruch 3, dadurch gekennzeichnet, dass die besagten hydraulischen Stellglieder (40) für jeden Gelenkarm (14, 15) zwei gepaarte Hydraulikzylinder (40a, 40b) umfassen, von denen jeder mit einem Ende an einem ersten entsprechenden Glied (20, 30) durch Einfügung einer Muffe (40c) und mit dem gegenüberliegenden Ende an einem Träger (23c, 33c) des besagten zweiten entsprechenden Glieds (23, 33) angelenkt ist.
EP19783686.9A 2018-09-11 2019-09-10 Hydraulische hebestruktur mit vertikaler hubbewegung für kraftfahrzeuge und ähnliche fahrzeuge Active EP3737633B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT201800008509 2018-09-11
PCT/IB2019/057621 WO2020053761A1 (en) 2018-09-11 2019-09-10 Hydraulic lift structure with vertical lifting movement for motor vehicles and similar vehicles

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EP3737633A1 EP3737633A1 (de) 2020-11-18
EP3737633C0 EP3737633C0 (de) 2023-10-25
EP3737633B1 true EP3737633B1 (de) 2023-10-25

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EP (1) EP3737633B1 (de)
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CN112355988B (zh) * 2020-09-21 2023-11-17 江苏人和环保设备有限公司 一种脉冲褶式滤筒加工定位装置
CN112429673B (zh) * 2020-10-27 2022-08-05 中建三局安装工程有限公司 一种综合管线整体抬升拼装装置
NL2026822B1 (en) * 2020-11-04 2022-06-24 Stertil Bv Vehicle elevator for lifting a vehicle and method for lifting
CN112678712A (zh) * 2021-01-05 2021-04-20 高仁魁 一种车用可倾斜跑道式举升机
CN113104761B (zh) * 2021-05-14 2023-04-07 潍坊工程职业学院 一种便于汽车用维修设备
CN114396542B (zh) * 2021-12-31 2024-08-20 德清县浙工大莫干山研究院 一种多方位四足摄影平台

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EP3737633C0 (de) 2023-10-25
WO2020053761A9 (en) 2020-05-22
EP3737633A1 (de) 2020-11-18
WO2020053761A1 (en) 2020-03-19
RU2765183C1 (ru) 2022-01-26

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