EP1034131B1 - Foldaway column vehicle lift - Google Patents
Foldaway column vehicle lift Download PDFInfo
- Publication number
- EP1034131B1 EP1034131B1 EP98952978A EP98952978A EP1034131B1 EP 1034131 B1 EP1034131 B1 EP 1034131B1 EP 98952978 A EP98952978 A EP 98952978A EP 98952978 A EP98952978 A EP 98952978A EP 1034131 B1 EP1034131 B1 EP 1034131B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foldaway
- lifting
- columns
- lift according
- scissors mechanism
- 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.)
- Expired - Lifetime
Links
Images
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
- B66F7/0616—Suspended platforms, i.e. the load platform hangs from the base
-
- 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
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
- B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars 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
- B66F7/06—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
-
- 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
-
- 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
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
Definitions
- This invention relates to a foldaway lift for articles and particularly vehicles according to the preamble of claim 1.
- Such a foldaway lift for articles is known from the DE 38 24 563 A and comprises lifting columns and a scissors mechanism.
- the plane substantially corresponding to the zero lifting is defined by the upper parts of the lift platform.
- the parallelogram mechanism is below the above mentioned plane.
- the lifts of this kind have several drawbacks that the present invention proposes to overcome.
- First of all the known foldaway column lifts have problems of rising parallelism, in other words the columns do not rise in a perfectly identical way.
- such a drawback was overcome with the application of expensive racks, sprockets and strong tension shafts, while in other cases with expensive and sophisticated hydraulic pistons.
- the preferred embodiment of the invention substantially provides for the reverse use of a scissors or double scissors mechanism, said mechanism being known per se in the technical field, for lifting two or more columns, in other words to cause the columns to be extracted to a desired extent from the ground level so as to lift the vehicle to a corresponding height.
- Another embodiment of the invention provides for the use of a single scissors mechanism combined with oil-pressure hydraulic cylinders arranged inside the columns. In this case the pit depth is reduced in comparison with the first embodiment.
- the lift 10 comprises at least one parallelogram mechanism 12, also called scissors or double scissors, and at least one column 14, but generally two or four columns 14.
- the base of each column 14 is fixed to a bar or horizontal plane 16 with which one end of the mechanism 12, hereinafter the lower end 18, is hinged.
- the other end or upper end 20 of the mechanism 12 is hinged to a support structure 26 substantially arranged at the ground level.
- a sliding guide 32 is preferably provided for each column 14 at the ground level of said structure 26.
- the extension and retraction movement of the mechanism 12 is carried out by means of electro-hydraulic devices 22 in the form of one, two or more pistons 22.
- Mechanical safety devices 24 for instance like racks, and devices acting on the pneumatic elements, such as the so-called parachutes or safety valves against overloads, failure of hydraulic pipes or excessive descent speed, are also provided.
- the depth L of the pit will be equal to the maximum extension above the ground of the columns plus the size of the closed or retracted mechanism. Indeed, just as an example, with a piston having a stroke of 50-60 cm, one can easily obtain an extension of the columns of about 180 cm above the ground level.
- the columns may be made of any suitable material, do not necessarily require an accurate surface treatment and may have practically any desired cross-sectional shape, and not only the circular one.
- the piston rod is always operating under traction which is clearly preferably to compression.
- the second embodiment 10' of the invention is shown in Figs. 3 and 4 and will be described in detail hereinafter making reference to these figures.
- a scissors mechanism 12 is still present under the level of the zero lifting but besides this feature, in each of the lifting columns 14 there is at least one oil-pressure hydraulic cylinder 34 allowing to reach through its rod 36, the desired height so as to attain substantially the function of a telescopic hydraulic cylinder.
- This embodiment is particularly suitable when it is not possible to make a pit 30 having a depth equal to the maximum lift extension above the ground level or when there is no need to lift the vehicle to a height greater than about 1000 mm.
Abstract
Description
Claims (10)
- Foldaway lift for articles and particularly vehicles, comprising one or more lifting columns (14) having a vertical translation motion from a zero lifting position to a maximum lifting position, and at least one scissors mechanism (12) being arranged below the plane substantially corresponding to the zero lifting, characterized in that said at least one scissors mechanism (12) is carrying out at least a portion of the translation motion of said one or more columns (14) and in that in the fully retracted position of said scissors mechanism (12), said one or more lifting columns (14) are in the position of maximum lifting.
- Foldaway lift according to claim 1, characterized in that in the fully extended position of said scissors mechanism (12), said one or more lifting columns (14) are in a position of minimum or zero lifting or minimum extension above the ground level.
- Foldaway lift according to claim 1 or 2, characterized in that one end of said scissors mechanism (12) is hinged to a support structure (16) to which the base of said one or more columns is fixed, and the other end is hinged to a support structure (26) substantially arranged at the ground level.
- Foldaway lift according to any one of the preceding claims, characterized in that for each column (14) at least a sliding guide (32) is provided.
- Foldaway lift according to any one of the preceding claims, characterized by electro-hydraulic devices (22), preferably in the form of one or more pistons carrying out extension or retraction of the scissors mechanism (12).
- Foldaway lift according to any one of the preceding claims, characterized in that mechanical safety devices (24) are provided.
- Foldaway lift according to Claim 5 or 6, characterized in that safety devices (24) acting on the electro-hydraulic devices (22) are provided.
- Foldaway lift according to Claim 1 to 8, characterized in that in said one or more columns (14) a corresponding oil-pressure hydraulic cylinder (34) increasing the lifting height is arranged.
- Foldaway lift according to any of the preceding claims, characterized by comprising also a container body forming a pit (30) inside which the at least one scissors mechanism operates and the at least one lifting column (14) is retracted.
- Foldaway lift according to any of the preceding claims, characterized in that each column (14) is provided with platforms or arms adapted to support an article or a vehicle.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI972633 | 1997-11-27 | ||
ITMI972633 IT1296590B1 (en) | 1997-11-27 | 1997-11-27 | HIDDEN COLUMN LIFT BRIDGE |
PCT/IB1998/001866 WO1999028231A1 (en) | 1997-11-27 | 1998-11-24 | Foldaway column vehicle lift |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1034131A1 EP1034131A1 (en) | 2000-09-13 |
EP1034131B1 true EP1034131B1 (en) | 2002-07-24 |
Family
ID=11378275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98952978A Expired - Lifetime EP1034131B1 (en) | 1997-11-27 | 1998-11-24 | Foldaway column vehicle lift |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1034131B1 (en) |
AU (1) | AU1049599A (en) |
DE (1) | DE69806804T2 (en) |
ES (1) | ES2181287T3 (en) |
IT (1) | IT1296590B1 (en) |
WO (1) | WO1999028231A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITPD20060403A1 (en) * | 2006-10-31 | 2008-05-01 | Spanesi S P A | "SUPPORT BENCH FOR MOTOR VEHICLES" |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750004A (en) * | 1952-04-09 | 1956-06-12 | Dover Corp | Combined load-equalizing and safety device for lifts |
GB8306378D0 (en) * | 1983-03-08 | 1983-04-13 | Alpha Lifts Ltd | Lift |
DE3439292A1 (en) * | 1984-10-26 | 1986-05-07 | Otto Nußbaum GmbH & Co KG, 7640 Kehl | Hydraulically operated lifting device, especially lifting platform for motor vehicles |
DE3824563A1 (en) * | 1988-07-19 | 1990-02-08 | Delu Luftkissen | Method and apparatus for lifting and supporting heavy, large-size loads, in particular rail-borne wagons, at several predetermined working heights |
US5120022A (en) * | 1990-06-15 | 1992-06-09 | Kubik Philip A | Hydraulic drive system for lift platform |
-
1997
- 1997-11-27 IT ITMI972633 patent/IT1296590B1/en active IP Right Grant
-
1998
- 1998-11-24 AU AU10495/99A patent/AU1049599A/en not_active Abandoned
- 1998-11-24 EP EP98952978A patent/EP1034131B1/en not_active Expired - Lifetime
- 1998-11-24 WO PCT/IB1998/001866 patent/WO1999028231A1/en active IP Right Grant
- 1998-11-24 ES ES98952978T patent/ES2181287T3/en not_active Expired - Lifetime
- 1998-11-24 DE DE69806804T patent/DE69806804T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69806804T2 (en) | 2003-03-20 |
IT1296590B1 (en) | 1999-07-14 |
WO1999028231A1 (en) | 1999-06-10 |
DE69806804D1 (en) | 2002-08-29 |
EP1034131A1 (en) | 2000-09-13 |
ITMI972633A1 (en) | 1999-05-27 |
AU1049599A (en) | 1999-06-16 |
ES2181287T3 (en) | 2003-02-16 |
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