WO2000006482A1 - Elevateur de charge particulierement bien adapte pour soulever une automobile ou tout autre vehicule - Google Patents
Elevateur de charge particulierement bien adapte pour soulever une automobile ou tout autre vehicule Download PDFInfo
- Publication number
- WO2000006482A1 WO2000006482A1 PCT/FR1999/001735 FR9901735W WO0006482A1 WO 2000006482 A1 WO2000006482 A1 WO 2000006482A1 FR 9901735 W FR9901735 W FR 9901735W WO 0006482 A1 WO0006482 A1 WO 0006482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rollers
- nut
- column
- fork
- lifting
- 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.)
- Ceased
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
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
- B66F7/025—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars screw operated
Definitions
- the present invention relates to a load lifter, particularly well suited for lifting an automobile or any other vehicle.
- the elevator according to the invention makes it possible to fill this gap, it uses the wheels as support points. This is not its only asset, it has other advantages of convenience and security, explained in the description. (A device patented under Q WO 95/25062 also uses the wheels as a fulcrum, but it is a complex and expensive system).
- the elevator consists of a fixed part and a mobile part connected to each other by a trapezoidal screw-nut system.
- the fixed part consists of a U-shaped base vertically surmounted by a square column and a suspension lug for the trapezoidal screw.
- the four faces of the column constitute the rolling surfaces of the four rollers of the carriage.
- the mobile part consists of a trolley, fitted with its four rollers, fixed on a fork intended to bear on the tread on both sides of the tire's ground contact surface.
- the up and down movement is ensured by the rotation of the trapezoidal screw fixed respectively to the column and to the carriage by means of a ball bearing and a nut.
- the hexagonal head of the trapezoidal screw can be operated by a screwdriver drill, as a motor or simply by a crank. It is also possible to mount an integrated motorization in which case provision may be made for synchronization between several devices.
- two elevators following the attached drawings, we can lift an automobile at the front or the back of seventy centimeters in less than three minutes. We slide under each of the two wheels concerned an elevator and we pass alternately from one wheel to another. The vehicle suspensions absorb this upward movement in successive steps.
- the main advantage of the elevator is that the four sides of the column which also serve as rolling faces are offset by 45 ° with respect to the four faces of the base. The same applies to the lines of axes of the rollers of the carriage with respect to the sides of its fork. Furthermore, the rollers situated, with respect to the column, on the opposite side of the load are offset upwards by a distance such that the resulting lever arm exerts a pressure equal to or greater than the load. By this particular arrangement and under the effect of the load, the four rollers are strongly supported on the four faces of the column. This results in a total absence of play in the three dimensions, including in rotation. This rigidity is complemented by good stability on the ground, which provides a broadly dimensioned seat.
- the guiding of the trolley is made in one piece, closed, not removable and matching the contour of the column with a clearance reduced to a few millimeters.
- a safety device maintains and blocks the carriage before complete wear of the carrier nut: the addition of a second nut to the first by means of a socket secures the two in rotation but not in translation.
- the extent of the play arranged between them determines the wear allowed on the side of the net. As soon as the two nuts touch, the steel safety nut is also stressed and the heating produced by its friction on the screw causes them to seize after a few turns. The user is obliged to replace the nuts and the screw before a rupture can occur.
- Figure 1 shows the fixed part of the invention.
- Figure 2 shows its moving part.
- Figure 3 shows a perspective of the whole.
- Figure 4 shows a sectional view of the nut socket device.
- the elevator is made up of a fixed part ( Figure 1) and a mobile part ( Figure 2) connected together by a trapezoidal screw (3).
- the fixed part consists of a base (1) surmounted by a square tube (2), the four faces (14,15,16,17) respectively constitute the rolling surfaces of the four rollers (18,19,20 , 21) of the carriage and a tab (11).
- the mobile part consists of the carriage (4), fitted with its four rollers (18, 19, 20, 21), welded to the fork (5).
- the fork goes up or down by rotation of the trapezoidal screw (3) fixed respectively to the leg (11) and to the carriage (4) by means of a ball bearing (6) and a nut bushing device (7 , 8.9).
- the screw is actuated by a screwdriver or crank drill at its hexagon head (10).
- Figure (3) we see the 45 ° offset of the faces (14,15,16,17) and the rollers (18,19,20,21) relative to the sides of the fork as well as the offset in height of (20.21) compared to (18.19). It is easy to understand the wedge effect produced respectively by the faces (14,15) on the rollers (18,19) and by the faces (16,17) on the rollers (20,21).
- the maintenance effort is proportional to the load.
- FIG (4) provides an understanding of the operation of the safety socket nut device.
- the bronze support nut (7) is screwed to the carriage and it supports a socket (8) fixed by pins (13).
- This socket contains a second nut (9) made integral with the first in rotation but not in translation by means of the two lugs (12) which are received in two holes of the socket (8).
- the axial clearance between the nuts (7 and 9) can be predetermined by the angular setting of the nut (7) relative to the nut (9) so as to allow complete wear of the nut thread (7 ), in which case pressed against it the nut (9) is no longer retained by the lugs and it rotates driven by the screw. As the movement of the carriage is no longer possible, it is necessary to replace the nut (7).
- a second adjustment with a clearance less than half a pitch of the screw presses the nut (9) against the nut (7) while remaining held by the lugs (12). Gradually it absorbs the load and the heating produced by its friction on the screw causes them to seize and forces the replacement of the nuts and the screw.
- the elevator can be provided with additional safety by a series of holes in the column intended to receive a pin for blocking the carriage relative to the column.
- the load elevator is particularly well suited for lifting automobiles, but there may be other applications. Given its absence of play, it is suitable to be used whenever a device requires an absence of play for a moderate cost.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Lubricants (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Handcart (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT99931351T ATE240256T1 (de) | 1998-07-30 | 1999-07-16 | Hebebühne besonders geeignet für kraftfahrzeuge oder anderde fahrzeuge |
| DE69907916T DE69907916D1 (de) | 1998-07-30 | 1999-07-16 | Hebebühne besonders geeignet für kraftfahrzeuge oder anderde fahrzeuge |
| AU47896/99A AU4789699A (en) | 1998-07-30 | 1999-07-16 | Load elevator particularly adapted for lifting a motor vehicle or any other vehicle |
| EP99931351A EP1100744B1 (fr) | 1998-07-30 | 1999-07-16 | Elevateur de charge particulierement bien adapte pour soulever une automobile ou tout autre vehicule |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR98/09903 | 1998-07-30 | ||
| FR9809903A FR2781779B1 (fr) | 1998-07-30 | 1998-07-30 | Elevateur de charge notamment de vehicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000006482A1 true WO2000006482A1 (fr) | 2000-02-10 |
Family
ID=9529308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1999/001735 Ceased WO2000006482A1 (fr) | 1998-07-30 | 1999-07-16 | Elevateur de charge particulierement bien adapte pour soulever une automobile ou tout autre vehicule |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1100744B1 (fr) |
| AT (1) | ATE240256T1 (fr) |
| AU (1) | AU4789699A (fr) |
| DE (1) | DE69907916D1 (fr) |
| FR (1) | FR2781779B1 (fr) |
| WO (1) | WO2000006482A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2493487A (en) * | 2011-05-12 | 2013-02-13 | Niftylift Ltd | Lifting Machine |
| AU2011265552B2 (en) * | 2011-12-23 | 2016-07-28 | Bomac Engineering Pty. Ltd. | Mobile gantry crane |
| CN107081726A (zh) * | 2017-06-07 | 2017-08-22 | 徐晓依 | 一种轮胎存放架 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060278856A1 (en) | 2005-06-08 | 2006-12-14 | Krug Norman J | Small vehicle jack apparatus |
| US7823861B2 (en) | 2005-06-08 | 2010-11-02 | Mojack Distributors, Llc | Small vehicle jack apparatus |
| US8141850B2 (en) | 2008-10-24 | 2012-03-27 | Mojack Distributors, Llc | Apparatuses and methods for an improved vehicle jack |
| US8387953B2 (en) * | 2009-05-05 | 2013-03-05 | Mojack Distributors, Llc | Apparatuses and methods for an improved vehicle jack having a screw jack assembly |
| ITBO20110308A1 (it) * | 2011-05-27 | 2012-11-28 | Meti S R L | Sollevatore a due colonne per autoveicoli. |
| DE102012106073A1 (de) * | 2012-07-06 | 2014-01-09 | Gerhard Finkbeiner | Hebevorrichtung und Verfahren zur Montage und Demontage eines Rades mit einer solchen Hebevorrichtung |
| US9074636B2 (en) | 2013-02-04 | 2015-07-07 | Mojack Distributors, Llc | Clutch assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1576457A (fr) * | 1967-05-05 | 1969-08-01 | ||
| DE2659710A1 (de) * | 1976-12-31 | 1978-07-06 | Wilhelm Hoch | Hebegeraet |
| GB2146616A (en) * | 1983-09-14 | 1985-04-24 | Finkbeiner W | Lifting jack |
| US5174414A (en) * | 1991-07-26 | 1992-12-29 | Burns Richard H | Service lift stand apparatus for small implements |
| FR2701252A1 (fr) * | 1993-02-08 | 1994-08-12 | Sefac Equipement | Dispositif de levage, notamment d'un véhicule. |
| WO1995025062A1 (fr) * | 1994-03-15 | 1995-09-21 | Gray Automotive Products Company | Dispositif de levage et de support de vehicule |
-
1998
- 1998-07-30 FR FR9809903A patent/FR2781779B1/fr not_active Expired - Fee Related
-
1999
- 1999-07-16 AU AU47896/99A patent/AU4789699A/en not_active Abandoned
- 1999-07-16 EP EP99931351A patent/EP1100744B1/fr not_active Expired - Lifetime
- 1999-07-16 DE DE69907916T patent/DE69907916D1/de not_active Expired - Lifetime
- 1999-07-16 WO PCT/FR1999/001735 patent/WO2000006482A1/fr not_active Ceased
- 1999-07-16 AT AT99931351T patent/ATE240256T1/de not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1576457A (fr) * | 1967-05-05 | 1969-08-01 | ||
| DE2659710A1 (de) * | 1976-12-31 | 1978-07-06 | Wilhelm Hoch | Hebegeraet |
| GB2146616A (en) * | 1983-09-14 | 1985-04-24 | Finkbeiner W | Lifting jack |
| US5174414A (en) * | 1991-07-26 | 1992-12-29 | Burns Richard H | Service lift stand apparatus for small implements |
| FR2701252A1 (fr) * | 1993-02-08 | 1994-08-12 | Sefac Equipement | Dispositif de levage, notamment d'un véhicule. |
| WO1995025062A1 (fr) * | 1994-03-15 | 1995-09-21 | Gray Automotive Products Company | Dispositif de levage et de support de vehicule |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2493487A (en) * | 2011-05-12 | 2013-02-13 | Niftylift Ltd | Lifting Machine |
| AU2011265552B2 (en) * | 2011-12-23 | 2016-07-28 | Bomac Engineering Pty. Ltd. | Mobile gantry crane |
| CN107081726A (zh) * | 2017-06-07 | 2017-08-22 | 徐晓依 | 一种轮胎存放架 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1100744B1 (fr) | 2003-05-14 |
| AU4789699A (en) | 2000-02-21 |
| FR2781779A1 (fr) | 2000-02-04 |
| ATE240256T1 (de) | 2003-05-15 |
| DE69907916D1 (de) | 2003-06-18 |
| EP1100744A1 (fr) | 2001-05-23 |
| FR2781779B1 (fr) | 2000-10-13 |
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