WO2016180569A1 - Lift for motor vehicles - Google Patents
Lift for motor vehicles Download PDFInfo
- Publication number
- WO2016180569A1 WO2016180569A1 PCT/EP2016/056856 EP2016056856W WO2016180569A1 WO 2016180569 A1 WO2016180569 A1 WO 2016180569A1 EP 2016056856 W EP2016056856 W EP 2016056856W WO 2016180569 A1 WO2016180569 A1 WO 2016180569A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever arm
- pin
- lift
- hinged
- lower lever
- Prior art date
Links
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 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.
- 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:
- Table I represents a perspective view of the lift according to the finding
- - fig. 2 (Table II) represents an elevated view of the lift of fig.1 ;
- - figs. 3 - 4 represent two views of the lift closed, respectively, in plan and vertically, sectioned according to the lines IV-IV of fig. 3 and III-III of fig. 4.
- 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)
Abstract
A lift for motor vehicles, of the type comprising two parallel platforms (1) for supporting the vehicle wheels, each platform being provided with a device (100, 200) for lifting the platform itself. The two lifting devices (100, 200) are arranged symmetrically opposed, below the vehicle bearing plane.
Description
Title: Lift for motor vehicles
DESCRIPTION
of the invention having the TITLE "Lift for motor vehicles"
to Linea A S.r.l.
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.
In current lifts for vehicles, when it is wished to obtain the maximum operating space below the platforms, essentially lifting systems are used having four columns, consisting of pairs of support beams, each pair being articulated to a corresponding pair of columns and on the beams of which, at the ends, a pair of parallel lifting platforms rests.
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.
In the state of the art it is also common to use lifts, provided with a pair of parallel platforms, which use a lifting system consisting of a so-called "fork" mechanism, consisting of two pairs of levers (single fork) or of many pairs of levers (pantograph), where the levers of each pair are articulated together at an intermediate section thereof.
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.
Again in the state of the art, 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.
As an example of the types of lifts described above, we cite the following patent documents: WO 2011/032872, US 8,286,944B2, WO 2012150770A2, US 2533980A, US 2471901A, CN 103058094A, US 2003/0178610A1, US 2009/0205907A1 and WOO 1/02281.
In particular, we cite patent documents US 8,286,944B2, US 2003/0178610A1 and US 2009/0205907A1, which use, as lifting system, a mechanism consisting of differently arranged levers, which are articulated above the platforms; on each pair of levers, hinges are foreseen provided with elements, which slide on guides formed in the structure of the platforms themselves; the structure of the fork mechanism foresees to have a lifting jack, which connects the intermediate hinges of the levers, like the diagonal of a quadrilateral and it is foreseen to insert an elastic element to compensate for the variation in geometry of the quadrilateral during the ascending and descending movements of the platforms of the lift.
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.
Specifically, 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:
- fig. 1 (Table I) represents a perspective view of the lift according to the finding;
- fig. 2 (Table II) represents an elevated view of the lift of fig.1 ;
- figs. 3 - 4 (Table III) represent two views of the lift closed, respectively, in plan and vertically, sectioned according to the lines IV-IV of fig. 3 and III-III of fig. 4.
As can be seen from the figures, 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 upper lever arm 4, located above the lever arms 3 and 5 and hinged at the end of the long lower lever arm 3, by means of the pin 13, is further hinged at the upper end to the platform 1, by means of the hinge pin 18.
Specifically, 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.
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.
Moreover, the 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. Operatively, the 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.
Alternatively, the pair of control actuators 21 consists of hydraulic jacks connected in series, so as to create a transfer hydraulic circuit.
The finding thus conceived can undergo modifications and variants and its details can be replaced by technically equivalent elements, provided that it is all covered by the inventive concept defined by the following claims.
Claims
1. LIFT FOR MOTOR VEHICLES, of the type comprising two parallel platforms (1) for supporting the vehicle wheels, each platform being provided with devices (100, 200) for lifting the platform itself, said lift (1) being characterized in that each of the two lifting devices (100,200), arranged symmetrically opposed, below the vehicle bearing plane, comprises:
- a short lower lever arm (5) hinged, by means of a pin (11), at the lower end to a base
(2) , by a sliding device (9) and further hinged, by means of a pin (1) to a long lower lever arm (3), in turn hinged, by means of a pin (10), to the base (2) and wherein, always on said short lower lever arm (5), a pin (14), connecting said short lower lever arm (5) to a rod (6) and a pin (16), on which the control actuator (21) is articulated;
- an upper lever arm (4), located above the lever arms (3,5), hinged at the end of the long lower lever arm (3), by means of the pin (13) and further hinged at the upper end to the platform (1), by means of a hinge pin (18), and provides that
- the rod (6), besides being hinged to the short lower lever arm (5), by means of a pin (14), is also hinged to the upper lever arm (4), by means of a pin (15), so as to form an articulated parallelogram (K), formed by the pair of opposite sides, constituted by the rod (6) and by a section of the long lower lever arm (3), comprised between the pins (12, 13) and the pair of opposite sides constituted by the section of the short lower lever arm (5), comprised between the pins (12, 14) and by a section of the upper lever arm (4), comprised between the pins (13, 15),
the lift being further characterized 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 (11) and
(12) on the other side), while the base is defined by the pins (10, 11) and where the mutual distance of said pins (10, 11) takes variable lengths, depending on the height position taken by the platform,
the lift being further characterized in that the control actuators (21) are positioned external to the corresponding parallelograms (K) and they are hinged between the short lower lever arm (5) and the upper lever arm (4), by means of the corresponding pins (16, 17), where an actuator (21) is constrained to the lever arm (5) with pin (16) and an actuator is constrained to the lever arm (4) with pin (17).
2. LIFT FOR MOTOR VEHICLES, according to claim 1, characterized in that the control actuators (21), mounted on the two opposite lifting devices (100, 200), are actuated by hydraulic jacks connected in parallel by means of a hydraulic circuit and in that their action is synchronized, so as to keep the platform horizontal during the ascent/descent movement of the lift.
3. LIFT FOR MOTOR VEHICLES, according to claim 1, characterized in that the control actuators (21), mounted on the two opposite lifting devices (100, 200), are actuated by hydraulic jacks connected in series, so as to create a transfer hydraulic circuit, their action being synchronized, so as to keep the platform horizontal during the ascent/descent movement of the lift.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16715478.0A EP3294658B1 (en) | 2015-05-13 | 2016-03-30 | Lift for motor vehicles |
DK16715478.0T DK3294658T3 (en) | 2015-05-13 | 2016-03-30 | LIFT FOR MOTOR VEHICLES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI2015A000118 | 2015-05-13 | ||
ITVI2015A000118A ITVI20150118A1 (en) | 2015-05-13 | 2015-05-13 | MOTOR VEHICLE LIFT |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016180569A1 true WO2016180569A1 (en) | 2016-11-17 |
Family
ID=53901063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/056856 WO2016180569A1 (en) | 2015-05-13 | 2016-03-30 | Lift for motor vehicles |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3294658B1 (en) |
DK (1) | DK3294658T3 (en) |
IT (1) | ITVI20150118A1 (en) |
WO (1) | WO2016180569A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107010561A (en) * | 2017-05-17 | 2017-08-04 | 福建明鑫智能科技股份有限公司 | A kind of steady hoistable platform using two groups of linkage parallel connection linkages |
CN113683032A (en) * | 2021-09-06 | 2021-11-23 | 奇点变幻科技(天津)有限公司 | Connecting rod type lifting device |
WO2022137044A1 (en) * | 2020-12-21 | 2022-06-30 | Emanuel - S.R.L. | Lifting system for vehicles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2594080A (en) * | 2020-04-16 | 2021-10-20 | Toumazis Antonios | Scissor mechanism |
Citations (8)
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 |
WO2001002281A1 (en) | 1999-07-02 | 2001-01-11 | Tom Mcniven | Load handling apparatus |
US20030178610A1 (en) | 2002-03-25 | 2003-09-25 | Gerbard Finkbeiner | Lifting device for vehicles, erecting units, machines or the like |
US20090205907A1 (en) | 2006-06-21 | 2009-08-20 | Stertil B.V. | Vehicle Elevator and Lift Therein |
WO2011032872A1 (en) | 2009-09-17 | 2011-03-24 | O.Me.R. S.P.A. | Vehicle lift |
WO2012150770A2 (en) | 2011-05-04 | 2012-11-08 | 헤스본 주식회사 | Hydraulic cylinder synchronizing apparatus for lifting a vehicle |
CN103058094A (en) | 2013-01-09 | 2013-04-24 | 上海大学 | Mechanical high-altitude lifting device |
-
2015
- 2015-05-13 IT ITVI2015A000118A patent/ITVI20150118A1/en unknown
-
2016
- 2016-03-30 WO PCT/EP2016/056856 patent/WO2016180569A1/en unknown
- 2016-03-30 EP EP16715478.0A patent/EP3294658B1/en active Active
- 2016-03-30 DK DK16715478.0T patent/DK3294658T3/en active
Patent Citations (9)
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 |
WO2001002281A1 (en) | 1999-07-02 | 2001-01-11 | Tom Mcniven | Load handling apparatus |
US20030178610A1 (en) | 2002-03-25 | 2003-09-25 | Gerbard Finkbeiner | Lifting device for vehicles, erecting units, machines or the like |
US20090205907A1 (en) | 2006-06-21 | 2009-08-20 | Stertil B.V. | Vehicle Elevator and Lift Therein |
WO2011032872A1 (en) | 2009-09-17 | 2011-03-24 | O.Me.R. S.P.A. | Vehicle lift |
US8286944B2 (en) | 2009-09-17 | 2012-10-16 | O.Me.R. S.P.A. | Vehicle lift |
WO2012150770A2 (en) | 2011-05-04 | 2012-11-08 | 헤스본 주식회사 | Hydraulic cylinder synchronizing apparatus for lifting a vehicle |
CN103058094A (en) | 2013-01-09 | 2013-04-24 | 上海大学 | Mechanical high-altitude lifting device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107010561A (en) * | 2017-05-17 | 2017-08-04 | 福建明鑫智能科技股份有限公司 | A kind of steady hoistable platform using two groups of linkage parallel connection linkages |
WO2022137044A1 (en) * | 2020-12-21 | 2022-06-30 | Emanuel - S.R.L. | Lifting system for vehicles |
CN113683032A (en) * | 2021-09-06 | 2021-11-23 | 奇点变幻科技(天津)有限公司 | Connecting rod type lifting device |
Also Published As
Publication number | Publication date |
---|---|
EP3294658B1 (en) | 2019-03-13 |
DK3294658T3 (en) | 2019-05-27 |
EP3294658A1 (en) | 2018-03-21 |
ITVI20150118A1 (en) | 2016-11-13 |
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