EP2495208A1 - Système de levage - Google Patents

Système de levage Download PDF

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Publication number
EP2495208A1
EP2495208A1 EP11156386A EP11156386A EP2495208A1 EP 2495208 A1 EP2495208 A1 EP 2495208A1 EP 11156386 A EP11156386 A EP 11156386A EP 11156386 A EP11156386 A EP 11156386A EP 2495208 A1 EP2495208 A1 EP 2495208A1
Authority
EP
European Patent Office
Prior art keywords
cabin
lift system
floor
lift
footprint
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Withdrawn
Application number
EP11156386A
Other languages
German (de)
English (en)
Inventor
Børge Carlsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BC Lift AS
Original Assignee
BC Lift AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BC Lift AS filed Critical BC Lift AS
Priority to EP11156386A priority Critical patent/EP2495208A1/fr
Priority to PCT/EP2012/053401 priority patent/WO2012117006A1/fr
Publication of EP2495208A1 publication Critical patent/EP2495208A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B66B11/02—Cages, i.e. cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • 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

Definitions

  • the invention relates to a lift system for elevation of persons or goods.
  • Lift or elevator systems are normally used as a vertical transportation means for moving people and goods, for example between floors in a building.
  • Lifts are conventionally positioned in shafts and are guided by rails that span the entire shaft and powered by a motor that drive a traction cable.
  • These lift systems are required to have some part of the system positioned at the highest point reachable for the lift. That can be the motor itself or a pulley which is used to change the direction of the traction cable that connects the motor and the cabin.
  • Lifts used for persons requires measures ensuring the security of the persons. Accordingly, making sure, that in case of a malfunction the lift does not fall to the ground and cause injury. This can be ensured by emergency breaks on the cabin, which breaks against the rails or a break on the traction cable. It is usually preferred that a lift system has means which will enable persons to leave the lift in case of a malfunction.
  • the object can be achieved by means of a lift system for elevation of persons or goods, comprising elevation means and a cabin that at least at times can move in a vertical direction and be positioned at different vertical positions,
  • the cabin comprises an outer surface with a bottom area defining a footprint for the cabin and an inner compartment with a floor
  • the footprint comprises an inner area where the footprint and the floor overlaps
  • the elevation means comprises at least one lifting column, which is able to move the cabin in the vertical direction wherein the at least one lifting column penetrate the bottom of the outer area.
  • the lifting column is outside the inner compartment, making sure that the person using the lift system does not get in contact with the moving parts of the lift system.
  • the lift system can, so to speak, be made as a self-contained entity that can easily be installed and if necessary moved.
  • the footprint can, preferably, be square, round, oval or super elliptic
  • the at least one lifting column comprise a telescopic member.
  • the telescopic member can be a telescopic member with multi-stage units of two, three, or more stages.
  • the telescopic member comprises at least two metal or plastic profiles which enable the telescopic motion. This expands the movable vertical distance of the cabin.
  • the telescopic member can at least at time be retracted to be substantially enclosed within the outer surface of the cabin. This makes the system compact and very easy to install as the lift system can be delivered and installed as a single unit requiring little or no extra space to incorporate parts of the system.
  • the telescopic member comprises a wire pulley system that secures the extending of the telescopic member is facilitated.
  • Using multiple linear actuators can be expensive and they can be difficult to calibrate to get a smooth speed of the cabin. If the lift system only uses one or a small number of actuators then the moving parts can be connected by a wire pulling system to lower the costs. This is especially advantageously when using a telescopic member, as it is sufficient to have only one actuator and a number of wires and pulleys, depending on the number of telescopic members and the number of stages in each telescopic member.
  • the elevation means comprises linear actuator, preferably a hydraulic actuator.
  • Hydraulic actuators have the benefit of no need for additional security as the cabin will not fall after a hydraulic malfunction. If for example the pump stops working, it will be impossible to ascend the lift, but neither will it descend.
  • the valve can be an extra security valve installed for this purpose. If alternatively, a linear actuator with a spindle and nut is used, the lift will simply stop moving during a malfunction.
  • the outer surface of the cabin comprises a top defining a substantially vertical top-plane wherein the at least one lifting column does not extend through the top plane. Accordingly, the lifting column does not extend through the roof of the cabin. Constructing the lift system this way, ensures a compact construction and easy installation of the lift system. Further, it is easy to install this lift in buildings not prepared for lifts. This is the case in old buildings where, during construction, no lift was installed. Subsequent installation of the lifts often require extensive modifications of the building, whereas the present invention require very little modifications.
  • the elevation means comprises two, three or four lifting columns.
  • Using two or more lifting columns secures the stability of the lift system.
  • the Cabin can, so to speak, be situated on at least two feet.
  • the task to be considered when using more than one lifting column is the synchronisation of the columns.
  • the extension needs to be in sync, to ensure that the floor of the inner chamber keeps a vertical position. This can be done by using only one actuator and connect at least one of the lifting columns to the actuator via a column wire pulley system. In other words, letting the lifting columns be actuated by a shared actuator.
  • the at least one lifting column extends through a plane having a vertical position similar to the floor of the inner compartment. In other words, the lifting columns go further up than the floor of the inner compartment. Using this embodiment ensures the lifting columns can have a larger part inside the cabin, and that the cabin is constructed to provide space for the lifting columns.
  • the inner compartment comprises at least one wall and a door, wherein the floor of the inner compartment is only limited by the at least one wall and the door of the inner compartment. Accordingly, that the floor is unbroken. For example that it is not possible to circumscribe the lifting columns from within the inner chamber.
  • Fig. 1 shows a lift system 1 according to a first embodiment of the invention with a top or roof 5, a floor 4, outer walls 5 and inner doors 3 which define a cabin.
  • the doors 3 are positioned on tracks so that is can slide to the side and not occupy any considerable space neither outside nor inside the cabin. Although the doors can be of any type as long as they provide access to the cabin.
  • the lift system 1 can be of any form such as rectangular or circular, in the present case the lift system 1 has an elliptic shape. Generally it is preferred to have an elliptic or circular shape (see fog. 2 to 5 for a embodiment with circular shape) as that ensures that sliding doors can follow the outer shape of the lift.
  • the cabin can also have two sets of doors one on each "side". Then the person using the lift does, for example not need to turn around between entering at one level and exiting at another level. This is beneficial for people with reduced mobility such as people in wheel chairs.
  • the cabin can have a control panel, wherein the vertical position of the cabin can be controlled.
  • This lift control panel is well known in the art.
  • the first embodiment shown in fig. 1 has two lifting columns 2.
  • the lifting columns are positioned within the footprint of the lift system 1. They do in a way limit the space inside the cabin because parts of them are enclosed within the outer shape of the lift 1.
  • the lift columns 2 are telescopic and actuated 8 by a hydraulic actuator as described below.
  • the telescopic lifting column 7 has three telescopic members 12, 13, 14 on each lifting column 2. This enables the cabin to be elevated to a position that is about three times the height of the cabin.
  • the number of telescopic members required, is dictated by the height that the cabin must reach. In principle any height can be reached with the use of telescopic members.
  • Fig. 2 and 3 shows a second embodiment of a lifting system 1.
  • the lifting system 1 is similar to the first embodiment, it has a top or roof 5, a floor 4, outer walls 5 and inner doors 3 which define a cabin.
  • the lift system 1 functions the same way as the first embodiment shown in fig. 1 . Additionally the ground or the floor 15, where the lift system is positioned and the horizontal division 18 between building levels is schematically shown. The cover 19 of the hole 20 where through the lift moves is also shown.
  • Fig. 1 shows the lift in a first position which can be ground level or in any case the lowest level where the lift can be positioned.
  • Fig. 2 shows the lift in a second position where it is at the first floor.
  • the second embodiment is installed in a building, where a hole 20 in the horizontal division 18 between the levels is needed. It is constructed in such a way that the hole 20 is closed with a cover 19. At some point, when the cabin is at the lower level (see fig. 2 ) and when the cabin ascends, it will reach the cover and then the cover can ascend together with the cabin, lying on top of the cabin, as shown in fig 3 . In this way, the area occupied by the lift system on higher levels is kept to a minimum when the lift is in its lower position.
  • lift systems are, due to safety, required to have dual doors and measures, securing nothing gets under the lift while it is descending.
  • This can be ensured by using an extra wall 16 surrounding the lift system, as shown in the second embodiment.
  • This extra wall 16 should have security doors 17 corresponding to inner doors 3 in the cabin, so that when both doors 3, 17 are open the inner compartment is accessible.
  • the security doors 17 in the extra wall 16 should preferably be sliding doors, as shown in the second embodiment. These sliding security doors 17 use the same principles as the inner doors 3 of the cabin.
  • any one of the embodiments is especially easy, as it can be placed anywhere and lift a person up to the height desired. This is important, especially when the lift is to be installed in a building, which initially was not designed for lifts.
  • the lift can for example be positioned inside a house and provide transportation between floors. It can for example be positioned anywhere on the lowest floor and then a hole in the horizontal division between the levels is the only modification needed in the building.
  • the lift can be installed where there already is access between the levels. This can for example be in a stairway.
  • the footprint of the cabin can be seen.
  • the floor 4 is smaller than the footprint of the lift system 1. This is because there is a column space 6 for the lifting column 2 that occupies part of the area of the bottom of the lift 1.
  • lifting columns 2 mechanics and hydraulics are positioned within this area.
  • some of the parts, such as the pump arrangement for the hydraulic can be positioned outside the footprint, it is preferred to enclose as many of the parts as possible within the column space 6.
  • Fig. 4 and 5 show the principle of the sliding doors.
  • both the inner doors 3 and the security doors are open.
  • the doors are sliding in such a way that they follow the shape of the lift and the extra wall 16.
  • the security doors 17 are, in this specific embodiment, stationary in the same way as the security wall 16.
  • the doors 3,17 are closed.
  • a telescopic lifting column 7 is shown to have three telescopic members 12, 13, 14. It is however clear for the skilled person, that any number of telescopic members can be used when applying these principles. It is also clear, that the telescopic members can be of any form or that the telescopic members 12, 13, 14 can be enclosed in an outer telescopic members for aesthetic and security purposes, as it will secure that nothing will get caught in the lifting columns.
  • the telescopic lifting column 7, comprises a hydraulic actuator 8, a first telescopic member 12, a second telescopic member 13, a third telescopic member 14 and a wire pulley system 9 with a pulley 10 and a wire 11.
  • the telescopic members 12, 13, 14 fit into each other in such a way that they can slide out from each other, a principle well known in the art.
  • the hydraulic actuator 8 is connected in one end to the first telescopic member 12 and in the other end with the second telescopic member 13 in such a way that when the hydraulic actuator 8 is extended and retracted so is the second telescopic member 13 in relation to the first telescopic member 12.
  • the wire 11 is in one end connected to the first telescopic member 12 and in the other end connected to the bottom of the third telescopic member 14, wherein the direction is altered by the pulley 10, which is positioned at the top of the second telescopic member 13.
  • a wire pulley system 9 as described can be used to add any desired number of additional telescopic members. Among the benefits of the wire pulling system is that it is cheap and easy to implement.
  • the principle of the wire pulley system ensures that the third telescopic member 14 extends simultaneously as the second telescopic member 13.
  • one of the lifting columns can be arranged as shown in fig. 6 and a further wire pulley system is arranged, so that the second lifting columns is actuated.
  • the further wire pulley system is connected in similar fashion, as the wire pulley system 9 on the lifting column with the hydraulic actuator.
  • the hydraulic actuator 8 needs a pump for the hydraulic fluid and control means for the pump (not shown).
  • the principle of a hydraulic actuator is well known in the art.
  • One special benefit, as described above, when using a hydraulic actuator, is that it provides security.
  • the worst case for a hydraulic system is if oil (or another hydraulic fluid) leaks. In that case the lift will descend as the oil leaks and hydraulic pressure decreases. If, for some reason, the control means stop working there can be installed a security valve that can open and release the hydraulic pressure which then lowers the cabin.
  • This security arrangement is very cheap and easy to install and makes it possible for the cabin to securely reach the lowest level in case of a malfunction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
EP11156386A 2011-03-01 2011-03-01 Système de levage Withdrawn EP2495208A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11156386A EP2495208A1 (fr) 2011-03-01 2011-03-01 Système de levage
PCT/EP2012/053401 WO2012117006A1 (fr) 2011-03-01 2012-02-29 Système d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11156386A EP2495208A1 (fr) 2011-03-01 2011-03-01 Système de levage

Publications (1)

Publication Number Publication Date
EP2495208A1 true EP2495208A1 (fr) 2012-09-05

Family

ID=44276038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11156386A Withdrawn EP2495208A1 (fr) 2011-03-01 2011-03-01 Système de levage

Country Status (2)

Country Link
EP (1) EP2495208A1 (fr)
WO (1) WO2012117006A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104787645A (zh) * 2015-04-24 2015-07-22 昆山通祐电梯有限公司 一种气动电梯
EP4282804A1 (fr) * 2022-05-25 2023-11-29 EMCH Aufzüge AG Système d'ascenseur avec une cabine pouvant être déplacée à l'extérieur du puits

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI642614B (zh) * 2018-03-23 2018-12-01 國勝豐工具機股份有限公司 Structural improvement of hydraulic telescopic rod
CH717970B1 (de) * 2020-10-16 2023-09-29 Emch Aufzuege Ag Aufzugslift, insbesondere zum Befördern von Personen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954157A (en) * 1974-08-16 1976-05-04 Dover Corporation Elevator lifting frame
US4041845A (en) * 1975-11-20 1977-08-16 Westinghouse Electric Corporation Hydraulic elevator apparatus
JPH01139487A (ja) * 1987-11-27 1989-05-31 Shiro Imafuku エレベーター
US4962832A (en) * 1989-02-09 1990-10-16 Mechanical Tool & Engineering Co. Vehicle lift with lift limit control
JPH0867463A (ja) * 1994-08-31 1996-03-12 Toshiba Corp 油圧エレベータのプランジャ案内装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149242A (en) * 1991-02-11 1992-09-22 Eaton-Kenway, Inc. Vertical drive apparatus for storage and retrieval vehicles
JPH09295780A (ja) * 1996-04-30 1997-11-18 Shimizu Corp 循環式エレベータ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954157A (en) * 1974-08-16 1976-05-04 Dover Corporation Elevator lifting frame
US4041845A (en) * 1975-11-20 1977-08-16 Westinghouse Electric Corporation Hydraulic elevator apparatus
JPH01139487A (ja) * 1987-11-27 1989-05-31 Shiro Imafuku エレベーター
US4962832A (en) * 1989-02-09 1990-10-16 Mechanical Tool & Engineering Co. Vehicle lift with lift limit control
JPH0867463A (ja) * 1994-08-31 1996-03-12 Toshiba Corp 油圧エレベータのプランジャ案内装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104787645A (zh) * 2015-04-24 2015-07-22 昆山通祐电梯有限公司 一种气动电梯
EP4282804A1 (fr) * 2022-05-25 2023-11-29 EMCH Aufzüge AG Système d'ascenseur avec une cabine pouvant être déplacée à l'extérieur du puits

Also Published As

Publication number Publication date
WO2012117006A1 (fr) 2012-09-07

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