EP3294658B1 - Lift for motor vehicles - Google Patents

Lift for motor vehicles Download PDF

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Publication number
EP3294658B1
EP3294658B1 EP16715478.0A EP16715478A EP3294658B1 EP 3294658 B1 EP3294658 B1 EP 3294658B1 EP 16715478 A EP16715478 A EP 16715478A EP 3294658 B1 EP3294658 B1 EP 3294658B1
Authority
EP
European Patent Office
Prior art keywords
lever arm
pin
hinged
lift
lower lever
Prior art date
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.)
Active
Application number
EP16715478.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3294658A1 (en
Inventor
Alfonso ESPOSITO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omcn SpA
Original Assignee
Omcn SpA
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Publication date
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Publication of EP3294658A1 publication Critical patent/EP3294658A1/en
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Publication of EP3294658B1 publication Critical patent/EP3294658B1/en
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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
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0666—Multiple scissor linkages vertically arranged

Definitions

  • the present finding concerns a lift for motor vehicles, comprising two parallel platforms for supporting the vehicle wheels, each platform being provided with devices for lifting the platform itself.
  • This embodiment although it ensures a substantial free space below the platforms, has the drawback of having the two support beams connected to the columns, which constitutes a particularly substantial impediment when the platforms of the lift are not completely raised; a further drawback consists of the fact that it has the bulk of the four columns even when the platforms are completely lowered.
  • This second embodiment due to the presence of the lifting mechanisms, has the drawback of not allowing the possibility of operating with sufficient freedom beneath the platforms.
  • lifts are known that are provided with a pair of parallel platforms, which have a lifting system consisting of a plurality of mutually hinged shafts, so as to form an articulated parallelogram structure, on which a fluid-dynamic actuator acts, which regulates the extension thereof, to carry out the lifting/lowering of the platforms.
  • This third embodiment if on the one hand it makes it possible to access beneath the platforms, since the two articulated structures are arranged on the two end sides of the platform, on the other hand has the drawback that the articulated structure, when it is completely closed, has a fairly substantial bulk in height that is not always acceptable in work places.
  • WO 2011/032872 discloses the preamble of claim 1.
  • the purpose of the present finding is to make a lift for motor vehicles, of the type comprising two parallel platforms for supporting the vehicle wheels, each platform being provided with lifting devices, which does not have the drawbacks of similar known products.
  • a first purpose of the finding is to obtain a lift without bulk below the platforms, so as to allow maximum operativity; a further purpose of the finding is to make a lifting system provided with a linkage capable of absorbing imbalances of the loads, without generating overloads at the structures and without using elastic elements to compensate for possible size variations of the levers of the lifting system.
  • the characteristics of the finding are highlighted by means of the description of a possible embodiment thereof, given as a non-limiting example, with the help of the attached tables of drawings, where:
  • the lift of the present finding is made up of at least one pair of platforms 1, which are lifted by means of one or more lifting devices, wholly indicated with reference numerals 100 and 200, consisting of a long lower lever arm 3, hinged at its lower end to the base 2, by means of a pin 10 and at its upper end to the upper lever arm 4, by means of the pin 13.
  • the lifting devices 100 and 200 are positioned below the vehicle bearing plane, in a mutually opposed manner.
  • a short lower lever arm 5 is hinged, by means of the pin 11, at the lower end to the base 2, by means of a sliding device 9 and is further hinged to the long lower lever arm 3, by means of the pin 12; again on said short lower lever arm 5 there is the pin 14, which connects said short lower lever arm 5 to the rod 6 and the pin 16, on which the control actuator 21 is articulated.
  • the rod 6 is hinged to the upper lever arm 4, by means of the pin 15 and is further hinged to the short lower lever arm 5, by means of a pin 14, so as to form an articulated parallelogram "K", formed by the pair of opposite sides, consisting of the rod 6 and the section of the long lower lever arm 3, comprised between the pins 12 and 13 and the pair of opposite sides, consisting of the section of the short lower lever arm 5, comprised between the pins 12 and 14 and the section of the upper lever arm 4, comprised between the pins 13 and 15.
  • K articulated parallelogram
  • the mechanism is also characterised in that the pin 12, to which the long lower lever 3 and the short lower lever 5 are hinged, constitutes the vertex of an articulated structure shaped as an isosceles triangle, where the two equal sides are constituted by the sections comprised between the pins (10 and 12, respectively on one side and 11 and 12, on the other side), while the base is defined by the pins 10 and 11 and wherein the mutual distance of said pins 10 and 11 takes variable lengths, depending on the height position taken by the platform.
  • control actuators 21 and 21.1 are positioned external to the corresponding parallelograms "K" and to the upper lever arm 4, by means of the corresponding pins 16 and 17, where an actuator is constrained to the lever arm 5 with the pin 16 and an actuator is constrained to the lever arm 4 with the pin 17.
  • control actuators 21, mounted on the two opposite lifting devices 100 and 200 are actuated by hydraulic jacks connected in parallel by means of a suitably sized hydraulic circuit and their action must be synchronized, so as to keep the platform horizontal during the ascent/descent movement of the lift.
  • the pair of control actuators 21 consists of hydraulic jacks connected in series, so as to create a transfer hydraulic circuit.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
EP16715478.0A 2015-05-13 2016-03-30 Lift for motor vehicles Active EP3294658B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI2015A000118A ITVI20150118A1 (it) 2015-05-13 2015-05-13 Sollevatore per veicoli a motore
PCT/EP2016/056856 WO2016180569A1 (en) 2015-05-13 2016-03-30 Lift for motor vehicles

Publications (2)

Publication Number Publication Date
EP3294658A1 EP3294658A1 (en) 2018-03-21
EP3294658B1 true EP3294658B1 (en) 2019-03-13

Family

ID=53901063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16715478.0A Active EP3294658B1 (en) 2015-05-13 2016-03-30 Lift for motor vehicles

Country Status (4)

Country Link
EP (1) EP3294658B1 (it)
DK (1) DK3294658T3 (it)
IT (1) ITVI20150118A1 (it)
WO (1) WO2016180569A1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010561A (zh) * 2017-05-17 2017-08-04 福建明鑫智能科技股份有限公司 一种采用两组连杆机构并联联动的平稳升降平台
GB2594080A (en) * 2020-04-16 2021-10-20 Toumazis Antonios Scissor mechanism
WO2022137044A1 (en) * 2020-12-21 2022-06-30 Emanuel - S.R.L. Lifting system for vehicles
CN113683032A (zh) * 2021-09-06 2021-11-23 奇点变幻科技(天津)有限公司 一种连杆式升降装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471901A (en) 1945-04-25 1949-05-31 Weaver Mfg Co Load-lifting appliance
US2533980A (en) 1946-01-04 1950-12-12 Weaver Engineering Co Lifting and lowering appliance
GB9915384D0 (en) 1999-07-02 1999-09-01 Mcniven Thomas Load handling apparatus
DE10213308A1 (de) 2002-03-25 2003-10-23 Gerhard Finkbeiner Hebevorrichtung für Fahrzeuge, Montageeinheiten, Maschinen oder dergleichen
NL1032038C2 (nl) 2006-06-21 2007-12-27 Stertil Bv Hefbrug en lift daarin.
IT1398012B1 (it) 2009-09-17 2013-02-04 O Me R Spa Ponte sollevatore.
KR101315015B1 (ko) 2011-05-04 2013-10-08 김종근 차량 리프팅용 유압실린더 동조 장치
CN103058094A (zh) 2013-01-09 2013-04-24 上海大学 一种机械式的高空升降装置

Also Published As

Publication number Publication date
ITVI20150118A1 (it) 2016-11-13
DK3294658T3 (da) 2019-05-27
EP3294658A1 (en) 2018-03-21
WO2016180569A1 (en) 2016-11-17

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