EP1304307A1 - Roping for elevator - Google Patents
Roping for elevator Download PDFInfo
- Publication number
- EP1304307A1 EP1304307A1 EP02022907A EP02022907A EP1304307A1 EP 1304307 A1 EP1304307 A1 EP 1304307A1 EP 02022907 A EP02022907 A EP 02022907A EP 02022907 A EP02022907 A EP 02022907A EP 1304307 A1 EP1304307 A1 EP 1304307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- counterweight
- cables
- cabin
- pulley
- hoistway
- 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.)
- Withdrawn
Links
Images
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
Definitions
- the elevator load cabin is guided during the movement by traditional steel guides fixed along a vertical side of the hoistway, the load cabin being suspended by a counterweight which is also guided by steel guides fixed to the hoistway.
- the two weights are connected by steel cables which extend along the hoistway up to its upper point.
- Two transmission pulleys are fixed to the top of the hoistway, one of which allows the alternate motion of the two weights (when the cabin is at the top, the counterweight is at the bottom and vice versa ).
- the counterweight is calculated so as to require the least driving force. In the ideal condition, i.e. with a load in the cabin which is half its capacity, the system is mechanically balanced.
- the vertical movement of the cabin is generated and controlled by a motor positioned in the lowest part of the hoistway, under the counterweight.
- This motor transmits its power by means of a pulley which adheres to more metal cables or belts and generates the vertical movement.
- Said cables are fixed to the counterweight and transmitted by the second pulley fixed to the top and are kept in tension by means of a biasing system.
- An electromechanical device will control the value of the tension.
- the apparatus has therefore two cable systems, one for the balancing and one for the movement.
- the motor and the cabin motion control are operated by a device which is positioned quite close to the hoistway inside a metal box, the control levers for the manual emergency operation being arranged in said metal box.
- the cabin, the doors, the supporting mechanical part of the cabin and the safety devices such as locking bolts, switches, alarms, parachutes, shock absorbers, etc., are all in accordance with the safety regulations presently in force and are not an object of the patent.
- This lifting apparatus capable of vertically transporting people and objects, is innovative since, unlike the conventional apparatuses, it consists of two separate cable systems, which allow to satisfy the present market requirements:
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Traffic Control Systems (AREA)
- Vehicle Body Suspensions (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Lifting apparatus consisting of a traction system and of a balancing system. The
traction system consists of a motor (M), a deviation pulley (PD) and a set of
traction cables (FT). The traction cables (FT) are firmly connected to the
counterweight (CP); they start from point 1, wind to the driving pulley (PM),
extend vertically along the hoistway and, by means of the deviation pulley (PD),
descend again onto the counterweight (CP) at point 2. The balancing system
consists of a cabin (C), a counterweight (CP), a pulley (PB) and a set of
balancing cables (FB). The balancing cables (FB) start from point 3 located at the
top of the cabin (C), extend vertically on the deviation pulley (PD) and descend to
point 4 on the counterweight (CP).
Description
- The elevator load cabin is guided during the movement by traditional steel guides fixed along a vertical side of the hoistway, the load cabin being suspended by a counterweight which is also guided by steel guides fixed to the hoistway.
- The two weights are connected by steel cables which extend along the hoistway up to its upper point.
- Two transmission pulleys are fixed to the top of the hoistway, one of which allows the alternate motion of the two weights (when the cabin is at the top, the counterweight is at the bottom and vice versa). The counterweight is calculated so as to require the least driving force. In the ideal condition, i.e. with a load in the cabin which is half its capacity, the system is mechanically balanced.
- The vertical movement of the cabin is generated and controlled by a motor positioned in the lowest part of the hoistway, under the counterweight. This motor transmits its power by means of a pulley which adheres to more metal cables or belts and generates the vertical movement.
- Said cables are fixed to the counterweight and transmitted by the second pulley fixed to the top and are kept in tension by means of a biasing system. An electromechanical device will control the value of the tension.
- The apparatus has therefore two cable systems, one for the balancing and one for the movement.
- The motor and the cabin motion control are operated by a device which is positioned quite close to the hoistway inside a metal box, the control levers for the manual emergency operation being arranged in said metal box.
- The cabin, the doors, the supporting mechanical part of the cabin and the safety devices such as locking bolts, switches, alarms, parachutes, shock absorbers, etc., are all in accordance with the safety regulations presently in force and are not an object of the patent.
- This lifting apparatus, capable of vertically transporting people and objects, is innovative since, unlike the conventional apparatuses, it consists of two separate cable systems, which allow to satisfy the present market requirements:
- 1. energy saving; on account of the counterweight and since the static loads of the moving organs do not rest on the motor, the force of the motor is reduced by 50%;
- 2. elimination of the machine housings since the motor is placed inside the hoistway;
- 3. reduced acoustic pollution;
- 4. reduced risk in the ordinary and extraordinary maintenance operations since the machine is always positioned in the hoistway at 0 level and for this reason it is easily accessible by the operators.
-
Claims (3)
- Hauling of the counterweight.
- Double cable system: traction cables and balancing cables.
- Positioning of the motor under the counterweight in the hoistway.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPD20010237 ITPD20010237A1 (en) | 2001-10-10 | 2001-10-10 | LIFTING SYSTEM FOR PEOPLE AND / OR THINGS |
ITPD20010237 | 2001-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1304307A1 true EP1304307A1 (en) | 2003-04-23 |
Family
ID=11452470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02022907A Withdrawn EP1304307A1 (en) | 2001-10-10 | 2002-10-10 | Roping for elevator |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1304307A1 (en) |
IT (1) | ITPD20010237A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013068635A1 (en) * | 2011-11-13 | 2013-05-16 | Kone Corporation | Elevator system |
WO2016005612A1 (en) * | 2014-07-07 | 2016-01-14 | Mac Puar, S.A. | Compact drive system for lifts |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0731052A1 (en) * | 1995-03-04 | 1996-09-11 | Dover Europe Aufzüge GmbH | Elevator |
WO1998029326A1 (en) * | 1996-12-30 | 1998-07-09 | Kone Corporation | Elevator rope arrangement |
WO1999043600A1 (en) * | 1998-02-26 | 1999-09-02 | Otis Elevator Company | Elevator system having drive motor located at the bottom portion of the hoistway |
DE19963296A1 (en) * | 1999-12-27 | 2001-07-12 | Aufzugfabrik Wilhelm Nunn Gmbh | Elevator has control unit for elevator drive contained between parts of elevator shaft used for displacement of elevator cabin and displacement of counter-weight |
-
2001
- 2001-10-10 IT ITPD20010237 patent/ITPD20010237A1/en unknown
-
2002
- 2002-10-10 EP EP02022907A patent/EP1304307A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0731052A1 (en) * | 1995-03-04 | 1996-09-11 | Dover Europe Aufzüge GmbH | Elevator |
WO1998029326A1 (en) * | 1996-12-30 | 1998-07-09 | Kone Corporation | Elevator rope arrangement |
WO1999043600A1 (en) * | 1998-02-26 | 1999-09-02 | Otis Elevator Company | Elevator system having drive motor located at the bottom portion of the hoistway |
DE19963296A1 (en) * | 1999-12-27 | 2001-07-12 | Aufzugfabrik Wilhelm Nunn Gmbh | Elevator has control unit for elevator drive contained between parts of elevator shaft used for displacement of elevator cabin and displacement of counter-weight |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013068635A1 (en) * | 2011-11-13 | 2013-05-16 | Kone Corporation | Elevator system |
CN103917474A (en) * | 2011-11-13 | 2014-07-09 | 通力股份公司 | Elevator system |
WO2016005612A1 (en) * | 2014-07-07 | 2016-01-14 | Mac Puar, S.A. | Compact drive system for lifts |
Also Published As
Publication number | Publication date |
---|---|
ITPD20010237A1 (en) | 2003-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20030704 |