WO2003004398A1 - Elevator drive system using the counterweight thereof - Google Patents
Elevator drive system using the counterweight thereof Download PDFInfo
- Publication number
- WO2003004398A1 WO2003004398A1 PCT/FR2002/002172 FR0202172W WO03004398A1 WO 2003004398 A1 WO2003004398 A1 WO 2003004398A1 FR 0202172 W FR0202172 W FR 0202172W WO 03004398 A1 WO03004398 A1 WO 03004398A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cabin
- pulleys
- cross member
- counterweight
- jack
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
- B66B11/009—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave with separate traction and suspension ropes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
Definitions
- the present invention relates to a mode of traction for elevators or other similar installation.
- the motorization for the drive of an elevator is in general physically closely linked, in particular with the plumb of the cabin, it does not matter if this one is hydraulic or electric with grip or with drum.
- the motor is between the car and the counterweight, the latter representing the dead mass of the car plus 50% of the payload.
- the invention relates to one or more arrangements which allow movement of the elevator, without the usual positioning constraints.
- the machinery and the cylinder can be indifferently, in the sheath or remotely, this new possibility facilitates and simplifies the installation of the elevator.
- the current arrangement of a jack can be under the cabin, this arrangement is said to be in direct engagement with the jack in this case it is the same length as the total height of the stroke.
- the height and load characteristics are essential to determine the diameter, in order to avoid the phenomenon of buckling.
- a large cylinder requires a corresponding quantity of oil, a large capacity pump and a corresponding electrical power.
- a large hole in the ground is also provided to install the cylinder.
- the size of the cylinder can be reduced by half if it is installed laterally on a jack, it is connected to the cabin by cables. In all cases the dimensioning is in consequence. Because the production of the cylinders is tailor-made, this inevitably involves significant delays and costs.
- At least one pulley on the cylinder head, and one below the cylinder plus the cable that goes up makes a ratio of 3 times.
- Maximum: for 4 pulleys fixed on the upper part of the rod and 4 pulleys below the jack, i.e. 8 pulleys, plus the cable which goes up, this makes nine strands x 3m 27m in height.
- a cylinder of 6 m for example is equivalent to 54m of stroke height.
- One end of the cables is fixed on the base of the jack support, the latter are wound between a set of pulleys located on the fixed cross member called the base, and pulleys fixed on the mobile cross member.
- the movable cross member is securely attached to the end of the cylinder rod.
- the muffle moves away, pulls on the cables.
- the 2 nd end of the cables being fixed on the counterweight, is pulled down, the cabin then moves in the assembled direction. This arrangement requires a lower mass in the counterweight than that of the vacuum cabin, so that the latter is always under tension. 2nd arrangement:
- One end of the cables is fixed on the base of the jack support, the latter are wound between a set of pulleys located on the fixed cross member called the base, and pulleys fixed on the mobile cross member.
- the movable cross member is securely attached to the end of the cylinder rod.
- the pump motor group can be installed inside the bowl sheath or outside, it is compact and requires no adjustment. An annual visit is sufficient.
- FIG. 1 shows the upper pulleys viewed from above.
- the number of pulleys can be variable depending on the height, the lift stroke, its speed and the load.
- the cylinder is positioned between the two sets of pulleys.
- the pulleys are mounted in a support, this is connected by tie rods fixed on the upper part of the cross-member, at the end of the cylinder rod exit.
- the pulleys are biased to resume the alignment of the grooves of the fixed pulleys located below. This arrangement allows the pulleys to be found below the cabin when it is on the lowest floor and thus take up less space in the sheath.
- FIG. 2 shows the upper cross member seen from above. This consists of commercial steel profiles. It is positioned on the outlet end of the cylinder rod. The jack supports the movable cross member in the middle.
- FIG. 3 shows the lower part of the jack support base. -Direction pulleys are installed there, one of them is slanted to escape the bulk of the jack which is installed just above above.
- the crosspieces can be removed if the nature of the ground allows the pulley to be firmly fixed.
- the number of pulleys is defined according to the load, the speed, and the length of the jack for the stroke to be performed.
- FIG. 4 shows an assembly seen from the side for traction by the counterweight.
- FIG. 5 shows an assembly seen from the side for traction by the cabin.
- FIG. 6 shows a set seen from the front of the cylinder and pulley part.
- FIG. 7 represents a cabin and jack assembly in traction without the counterweight.
- FIG. 1 is a view from above, two sets of two pulleys 10 mounted on an axis in a support 1 1, each set 10 is connected by the fixing point 12, between the two sets 13, is the cylinder body 14.
- the two sets of pulleys 10 in FIG. 1 are connected by the points 12 to the movable cross member 20, FIG. 2, on the fixing points 22, using an upright 15 (visible in FIG. 4 ) per set 10, the uprights 15 (visible in FIG.
- the movable cross member 20 is fixed on the end of the rod of the jack 25. On either side of the cross member a slide 23 is fixed to guide the movable cross member 20, in the rails.
- Figure 3 shows a base 30, on which are fixed 4 pulleys 31, one diagonally 32 to escape the size of the cylinder.
- a fixed point 34, for the traction cables, is fixed according to this arrangement in the angle of the base 30, it can, depending on the configuration, be installed in another angle of the base 30.
- a first and a second set of pulleys mounted free respectively on horizontal axes secured respectively to the movable cross member and the base.
- FIG. 4 a preferred embodiment of the motor device for an elevator will be described in more detail, the principle of which has already been explained in relation to the preceding figures.
- the second cable 40 passes over said sets of pulleys to constitute a block.
- a first end of said cable 40 being secured to the fixed point 41 of the base 43, the other end passes through a deflection pulley 49, which is located directly above the counterweight 42.
- the deflection pulley 49 can be kept apart by sleepers 48 for example or be fixed to the ground, if the nature of this allows.
- the cable 40 runs on an anchor point 46 located on the lower part of the counterweight 42.
- the stroke of the jack simply for the purpose of causing the separation of the block, between the movable cross member 45, which is free to move vertically relative to the base 43.
- the counterweight 42 is lowered.
- the lowering of the counterweight naturally has the effect of raising the cabin 48, by a height which is equal to the displacement of the rod of the jack 25, multiplied by the number of strands drunk cable passing over the pulleys constituting the block.
- each set of pulleys has four pulleys, the effective stroke of the elevator is 9 times the displacement value of the rod.
- a minimum of 4 pulleys can be installed, either a pulley per set, i.e.
- FIG. 5 Another embodiment according to the invention in FIG. 5 a different arrangement can be distinguished, with the same principle of motorization, except that the end of the cable 50 rises at the very top of the sheath, passes over one or (two) pulley (s) of return 51 and descends to a fixing point 52 of the elevator cabin 48.
- the cabin 48 being heavier when empty, tends to descend by gravitation, but it is held by the cable 50. It is easily understood that when the rod of the jack 25 moves the block away, the cabin 48 goes up and vice versa.
- An additional advantage of the present invention is that the amount of working fluid is reduced due to the reduced stroke of the rod.
- FIG. 6 represents an overall view composed of a movable cross member 20 on which are hung 2 tie rods 15 at the end of these tie rods 15, 2 sets of pulleys 10 between the 2 sets of pulleys 10 a jack body 14 is fixed by the bottom on a base 30 a jack rod 25 is fixed at its end to the movable cross member 20 and slides in the body of the jack 14. A the angle of the base a fixing point 34 of the cables is fixed. In the structure of the base 30, 4 pulleys are installed there, a pulley 32 is biased.
- the movable cross member 20 moves at least 5 times slower than the cabin or 9 times at most.
- the movable cross member 20 moves at least 5 times less than the distance traveled by the cabin 48 or at most 9 times depending on the number of pulleys chosen.
- the movable cross member 20 moves upwards and thus draws aside the block, the latter pulls on the cable 40, which is fixed on the fixing point 46 of the counterweight 42 which drives it downwards and consequently causes it to rise cabin 48.
- the movable cross member 20 moves upward and thus spreads the block, which pulls on the cable 50, which is fixed on the fixing point 52 of the cabin 48 which drives it upwards and therefore makes lower the counterweight 42.
- the movable cross member 20 supports as a pendant the two sets of pulleys 10, which are located below the cabin 43 when the latter is at the lowest point of its position.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02755085A EP1404604A1 (en) | 2001-07-03 | 2002-06-21 | Elevator drive system using the counterweight thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0108816 | 2001-07-03 | ||
FR0108816A FR2826947B1 (en) | 2001-07-03 | 2001-07-03 | COUNTERWEIGHT LIFT TRAINING |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003004398A1 true WO2003004398A1 (en) | 2003-01-16 |
Family
ID=8865074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002172 WO2003004398A1 (en) | 2001-07-03 | 2002-06-21 | Elevator drive system using the counterweight thereof |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1404604A1 (en) |
FR (1) | FR2826947B1 (en) |
WO (1) | WO2003004398A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013182209A1 (en) * | 2012-06-05 | 2013-12-12 | Soliman Mohamed Abdel Hameed Abdel Alleem Mohamed | Advanced roped hydraulic elevator with and without counterweight for all heights and speeds. |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2703330B1 (en) * | 2012-08-31 | 2015-08-26 | KONE Corporation | Elevator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE62622C (en) * | A. W. D. BELL und J. ! WELSBY in Wellington, Colonie Neu-Seeland; j | Roller train with disengageable rollers | for lifting machines | ||
US4830146A (en) * | 1986-10-22 | 1989-05-16 | Hitachi, Ltd. | Fluid-pressure elevator |
GB2271544A (en) * | 1992-10-13 | 1994-04-20 | Gold Star Ind System | Roping arrangement of a hydraulic elevator. |
DE19648530A1 (en) * | 1996-11-23 | 1998-05-28 | Karl Eickmann | Lifting device, e.g. hoist or lift for use in low rise housing |
-
2001
- 2001-07-03 FR FR0108816A patent/FR2826947B1/en not_active Expired - Fee Related
-
2002
- 2002-06-21 WO PCT/FR2002/002172 patent/WO2003004398A1/en not_active Application Discontinuation
- 2002-06-21 EP EP02755085A patent/EP1404604A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE62622C (en) * | A. W. D. BELL und J. ! WELSBY in Wellington, Colonie Neu-Seeland; j | Roller train with disengageable rollers | for lifting machines | ||
US4830146A (en) * | 1986-10-22 | 1989-05-16 | Hitachi, Ltd. | Fluid-pressure elevator |
GB2271544A (en) * | 1992-10-13 | 1994-04-20 | Gold Star Ind System | Roping arrangement of a hydraulic elevator. |
DE19648530A1 (en) * | 1996-11-23 | 1998-05-28 | Karl Eickmann | Lifting device, e.g. hoist or lift for use in low rise housing |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013182209A1 (en) * | 2012-06-05 | 2013-12-12 | Soliman Mohamed Abdel Hameed Abdel Alleem Mohamed | Advanced roped hydraulic elevator with and without counterweight for all heights and speeds. |
Also Published As
Publication number | Publication date |
---|---|
FR2826947B1 (en) | 2004-02-27 |
FR2826947A1 (en) | 2003-01-10 |
EP1404604A1 (en) | 2004-04-07 |
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