EP0020825A1 - Apparat zum Befördern von Lasten zwischen verschiedenen Höhenlagen - Google Patents

Apparat zum Befördern von Lasten zwischen verschiedenen Höhenlagen Download PDF

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Publication number
EP0020825A1
EP0020825A1 EP19790301102 EP79301102A EP0020825A1 EP 0020825 A1 EP0020825 A1 EP 0020825A1 EP 19790301102 EP19790301102 EP 19790301102 EP 79301102 A EP79301102 A EP 79301102A EP 0020825 A1 EP0020825 A1 EP 0020825A1
Authority
EP
European Patent Office
Prior art keywords
car
platform
elevator
loads
drive
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
Application number
EP19790301102
Other languages
English (en)
French (fr)
Inventor
Rex Henley Perkins
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.)
Sanscord Australia Pty Ltd
Original Assignee
Sanscord Australia Pty Ltd
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 Sanscord Australia Pty Ltd filed Critical Sanscord Australia Pty Ltd
Priority to EP19790301102 priority Critical patent/EP0020825A1/de
Publication of EP0020825A1 publication Critical patent/EP0020825A1/de
Ceased 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
    • B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
    • B66B9/025—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by screw-nut drives

Definitions

  • THIS INVENTION relates to means for the transfer of loads from one level to another. More particularly the invention relates to means allowing for the transfer of loads between two adjacent floors or storeys of a building structure.
  • a conventional elevator of the type suitable for transferring loads from one level to another, depends for its actual operation upon the utilisation of steel cables, hoisting ropes or the like.
  • Such elevators in general may be seen to comprise a power-operated device for lifting and lowering loads and are made up of a so-called car or cage which is arranged so as to run between guide rails extending between the levels under consideration.
  • the car or cage itself is by convention suspended from steel hoisting ropes or cables.
  • the weight of the car and its load is, in practice, approximately counter-balanced by a so-called counterweight.
  • the actual weight to be hoisted by the drive motor may therefore be seen never to equal the total weight of the car and passengers (or load) but rather is equal to merely the relatively small difference which exists between the counterweight and the weight of the loaded car.
  • elevators By reason of the use of steel hoisting cables, ropes and the like the relevant government authorities require the incorporation of sophisticated and virtually fail-safe safety devices and safe-guards in elevators of this general type.
  • Some elevators are equipped with a-safety rope which runs in an endless loop around pulleys positioned at the top and bottom respectively of the lift well or shaft. This safety rope is then secured to the lift or elevator car. In the event of fracture or failure of the hoisting rope or cable the car will drop (under the influence of gravity). This drop will cause the pulleys of the safety rope to rotate more rapidly.
  • a centrifugal governor connected to the safety rope pulley positioned at the top of the lift shaft will then serve to actuate a switch which will set the safety devices in operation whereby to arrest the downward motion of the car.
  • this arresting effect is achieved by means of powerful jaws adapted to act on and grip the guide rails.
  • limit switches may be provided to prevent over- travel of the car beyond the desired level
  • door interlocks may be provided to prevent the car from actually starting until the doors or the lilaaare securely closed, etc.
  • an elevator is specifically required, for example, for use and installation in a two-storey building, be that building a private house, flats, offices or perhaps even storage facilities.
  • Modern elevators are particularly designed for usage in multi-storey buildings and, in the result, it is generally extremely difficult and accordingly expensive to obtain a smaller unit for usage in a two-storey situation.
  • such smaller.units may be required, for example, by smaller firms for the purposes of transporting loads, in the form of personnel, stationery and/or other material between adjacent floors.
  • such small units would be particularly appropriate for the transport of either elderly or otherwise incapacitated people between adjacent floors of a multi-storey home or building. If no such facility for transport is provided, then such elderly or incapacitated people would in essence be virtually confined to a particular storey of the structure, a dreary existence indeed.
  • the present invention seeks to provide an elevator or load transfer means which is particularly suited for usage between adjacent levels in a structure.
  • the invention further seeks to provide such a load transfer means or elevator which achieves the desired result in an efficient manner and by the utilisation of apparatus the cost of which brings it within reach of both the business and domestic sections of a community.
  • the present applicant's arrangement seeks to avoid the need for the use of ropes, cables and the like in elevator or load transfer equipment.
  • hoisting means generally in the form of ropes or cables are, of course, susceptible to breakage.
  • the present arrangement by eliminating the need for these elements, results in an increase in both the efficiency of the overall system and the degree of safety afforded thereby.
  • the present applicant's arrangement has nevertheless been found to comply fully with the requirements of the relevant government authority or instrument- ality as regards structural and operational safety.
  • the present invention further seeks to provide an elevator which will not drop in the event of power failure, but will rather automatically stop at the level reached or attained at that particular point of time.
  • the present invention furthermore seeks to provide an elevator or load transfer means which is adaptable for ready installation into an existing building, or alternatively may be readily fitted to an outer wall of an existing building.
  • an elevator or load transfer means in accordance with the present invention is adapted for assembly prior to transport to the site where installation is required.
  • an apparatus for the transfer of loads from one level to another including: platform means for supporting said load or loads; guide means for controlling the path and speed of movement of said platform means between said levels; and drive means operable to move said platform means between said levels.
  • a load transfer means includes a so-called car or cage 1 adapted for location within an outer tower or frame 2 whereby to allow for movement of the car 1 between two floor positions.
  • the transfer means thus arranged may be of a modular construction, whereby to allow for transport in its assembled condition to a site for installation in the interior of a building, or alternatively for ready attachment to the side of a building.
  • the car 1 preferably is made up of a box-like enclosure having sliding doors 3 provided thereon to allow for entry thereinto.
  • a sliding door 3 is provided at one side of the box-like enclosure.
  • a corresponding sliding door may be provided at both the front and rear sides thereof, whereby to allow for ready access from both front and rear.
  • the car 1 may be provided either as a walk-through unit having doors to both sides thereof, or as a come-back model, having doors to one side only.
  • the or each door 3 of the car 1 is fabricated from aluminium and mild steel sections as a separate unit to be bolted or otherwise affixed to the car 1. If a hand-operated door 3 is desired, this may be achieved by the provision of an appropriately fire-rated door arranged on a so-called Bangor type track 4 and counter-weighted with a dash-pot arrangement 5, as specifically shown in Figures 1 and 2. However, if self- opening type doors are desired this may be achieved by fitting the or each door 3 with a torque limited drive.
  • an outer or landing door assembly 6 In addition to the aforementioned door or doors 3, there is preferably also provided, at each level or landing of the arrangement in accordance with the invention, an outer or landing door assembly 6.
  • This landing door assembly 6 may be of a somewhat similar construction to the actual car doors 3, although the assembly 6 is adapted to be bolted to the tower or frame 2 and is preferably fitted with an electro-mechanical type lock whereby to prevent opening thereof at any time when the car or cage 1 is not itself present at the landing. This constitutes a further safety precaution.
  • the landing door assembly may also be provided with a technician's lock release assembly whereby to allow for entry for purposes of service and maintenance.
  • the guide means are in the form of four rolled thread ball bearing screw assemblies, as for example of the type known as Saginaw steering gear available from The General Motors Corporation.
  • the guide means are in the form of four rolled thread ball bearing screw assemblies, as for example of the type known as Saginaw steering gear available from The General Motors Corporation.
  • the guide means are in the form of four rolled thread ball bearing screw assemblies, as for example of the type known as Saginaw steering gear available from The General Motors Corporation.
  • the guide means are in the form of four rolled thread ball bearing screw assemblies, as for example of the type known as Saginaw steering gear available from The General Motors Corporation.
  • use is made of four fixed Saginaw type screws 8 each having a revolving circulating ball nut associated therewith and attached to the car 1.
  • two such assemblies might well alternatively be employed.
  • Such an arrangement will not prove as efficient as the aforementioned arrangement utilising four such assemblies, by reason of the possibility of sway and twist introduced thereby.
  • the ball screw 8 of each screw assembly is attached at each end onto the frame 2 whereby to allow for support thereof.
  • a mounting bracket and associated hub 7 are attached with tapered roller thrust bearings 9 supporting a hollow shaft 10 to which is attached a Saginaw type nut 11.
  • a sprocket 12 Also attached to the hollow shaft 10 is a sprocket 12 having a brake disc l3 attached thereto.
  • the upper mounting brackets 7, as specifically illustrated in Figure 5, are in the form of a fabricated bracket member adapted to be attached to vertical channel members provided on the lift frame 2 whereby to support the Siginaw screws 8.
  • these upper brackets are provided with suitable adjustment means, as for example illustrated at 14 in Figure 5, whereby to allow the screws 8 to be aligned correctly in relation to the frame 2.
  • the brackets 7 provided for housing the lower ends of the screws 8 may be of a similar construction to the aforementioned upper brackets, or may alternatively be provided or fitted with so-called "floating" attachments to allow for correct relative alignment of the screws 8.
  • the sprockets 12 attached to the upper ends of the screws 8 are rotated, by means of an appropriate drive system to be described in more detail hereinafter, whereby to cause the car or cage 1 to rise or descend as required dependent upon the direction of rotation.
  • an appropriate drive system to be described in more detail hereinafter, whereby to cause the car or cage 1 to rise or descend as required dependent upon the direction of rotation.
  • the four screws 8 must be rotated to either raise or lower the car or cage 1, there is no free fall condition of the type which is know to exist with so-callled conventional elevators. As such, a compensating counterweight will not be required.
  • a sub-base 15 At the top of the outer frame 2, or alternatively at the top of the car or cage 1, there is provided a sub-base 15 (see Figure 4). Located on this sub-base 15 are a drive motor 16, drum coupling and solonoid breaking means 17 and a reducing gearbox 18.
  • the drive motor 16 will be in the form of a single phase motor connected, via a suitable power coupling 17, to a 90-degree gear reducer 18 (adapted for example to provide approximately 3:1 transmission ratio).
  • the power coupling 17 ensures the existence of a short period of dwell before the onset of full torque to the gearbox 18, thereby allowing for what may be termed, in layman's language, a "soft" start-stop effect.
  • the output shaft from the reduction gearbox 18 in turn is adapted to drive chains 19 and sprockets 20 in a circular fashion to each of the Saginaw nuts 11, thereby imparting upward or downward motion to the car or carriage.
  • a single phase electric motor may preferably be employed.
  • three phase current may then be employed, with the result that a three phase motor will be appropriate.
  • the appropriate motor l6, reduction gearbox 18 and associated sprockets 20 are mounted on the top of the car or cage 1.
  • the car 1 In a preferred embodiment there is provided adequate space between the car 1 and the frame 2 whereby to allow for access therein of personnel. Such space may be utilised either as an emergency exit or for purposes of maintenance.
  • the car 1 may furthermore have a removable panel provided therein whereby to allow for ready access to the space.
  • a ladder or ladders provided on the frame 2 and a door, manually or electrically operated, provided at the bottom of the frame 2 would then complete the arrangements allowing for escape in an emergency or under conditions of power failure.
  • a number of electrical controls may be provided. Such controls would include a demand button at each level and a start-stop button in the car or cage 1 itself. Furthermore the frame 2 may be provided with so-called limit switches at each level thereof, with these switches being operable to de-energise the drive means upon arrival of the car or cage 1 at a respective floor of the overall structure.
  • An appropriate communication system as for example a telephone, may be installed in the car or cage 1 whereby to allow for communication with persons outside that car 1 in times of emergency.
  • ihe car or cage 1 may be equipped with lighting of any known type. Preferably however, all lighting and controls are of the low voltage type.
  • the car or cage 1 may also be equipped with a battery stand-by for emergency lighting, as for example for use in the instance of power failure.
  • each entry door may be fitted with electrical solonoid locks which are adapted to lock when de-energised such that, in the instance of power failure, entry cannot be gained unless the car or cage 1 is actually present at the level of entry.
  • a further preferred feature of the present arrangement resides in the provision of a means for detecting and reacting to fracture of the or each chain of the assembly.
  • a basic frame and pivot pin may be adapted to support two sprockets on springloaded arm members whereby to tension the or each drive chain.
  • the relevant arm will revolve under spring pressure whereby to actuate a micro-switch operable to stop the drive.motor and hence arrest the motion of the car or cage 1.
  • two buffers are fitted at the base of the frame 2 in order to protect against the possibility of over-run of the car 1.
  • Caliper type disc brakes 21 may also be fitted to alternate Saginaw nuts 11. In the instance of power failure these disc brakes 21 will hold against release until actually released by a service man or alternatively upon resumption of the power supply.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
EP19790301102 1979-06-11 1979-06-11 Apparat zum Befördern von Lasten zwischen verschiedenen Höhenlagen Ceased EP0020825A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19790301102 EP0020825A1 (de) 1979-06-11 1979-06-11 Apparat zum Befördern von Lasten zwischen verschiedenen Höhenlagen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19790301102 EP0020825A1 (de) 1979-06-11 1979-06-11 Apparat zum Befördern von Lasten zwischen verschiedenen Höhenlagen

Publications (1)

Publication Number Publication Date
EP0020825A1 true EP0020825A1 (de) 1981-01-07

Family

ID=8186384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790301102 Ceased EP0020825A1 (de) 1979-06-11 1979-06-11 Apparat zum Befördern von Lasten zwischen verschiedenen Höhenlagen

Country Status (1)

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EP (1) EP0020825A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635491A (en) * 1983-08-10 1987-01-13 Fuji Electric Co., Ltd. Fail-safe motor-driven cylinder for lifting apparatus
FR2640604A1 (fr) * 1988-12-15 1990-06-22 Otis Elevator Co Ascenseur avec machine d'entrainement a adherence embarquee
FR2655422A1 (fr) * 1989-12-06 1991-06-07 Armines Extensometre isostatique a axe vertical.
ES2169973A1 (es) * 1999-10-08 2002-07-16 Belmonte Asensio Fernandez Mecanismo de desplazamiento vertical, ahorro energetico y frenado para ascensores.
KR100394503B1 (ko) * 1999-06-07 2003-08-14 가부시끼가이샤 도시바 더블 데크 엘리베이터 카
KR100469966B1 (ko) * 2002-03-27 2005-02-02 주식회사 지암메디테크 저층용 엘리베이터의 구동장치
RU2497743C1 (ru) * 2012-07-09 2013-11-10 Открытое акционерное общество "Конструкторское бюро специального машиностроения" Судовой подъемник
CN105347144A (zh) * 2015-11-30 2016-02-24 内蒙古包钢钢联股份有限公司 安全轿厢
CN109132794A (zh) * 2016-09-23 2019-01-04 泉州创源机电科技有限公司 一种螺杆式垂直电梯及其工作方法
CN109534130A (zh) * 2018-08-14 2019-03-29 张元� 一种多螺杆多层住宅电梯
RU198578U1 (ru) * 2019-11-20 2020-07-16 Антон Игоревич Половинкин Вертикальный подъемник для лиц с ограниченными возможностями

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE201572C (de) *
US1986620A (en) * 1934-06-21 1935-01-01 Atlantic Elevator Company Elevator
US2802549A (en) * 1955-08-05 1957-08-13 Izquierdo Federico De L Santos Elevators
AU442061A (en) * 1961-05-09 1963-05-02 Class Gunther Harvester-thresher
US3215227A (en) * 1963-03-04 1965-11-02 Ellamac Inc Elevator drives
US3468401A (en) * 1965-12-13 1969-09-23 Letz Aufzug Ets Screw-driven elevator
FR2199524A1 (de) * 1972-09-19 1974-04-12 Millet Gabriel
US3851854A (en) * 1973-07-05 1974-12-03 F Roybal Construction robot
US3924710A (en) * 1972-11-30 1975-12-09 Harsco Corp Rack and pinion hoist

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE201572C (de) *
US1986620A (en) * 1934-06-21 1935-01-01 Atlantic Elevator Company Elevator
US2802549A (en) * 1955-08-05 1957-08-13 Izquierdo Federico De L Santos Elevators
AU442061A (en) * 1961-05-09 1963-05-02 Class Gunther Harvester-thresher
US3215227A (en) * 1963-03-04 1965-11-02 Ellamac Inc Elevator drives
US3468401A (en) * 1965-12-13 1969-09-23 Letz Aufzug Ets Screw-driven elevator
FR2199524A1 (de) * 1972-09-19 1974-04-12 Millet Gabriel
US3924710A (en) * 1972-11-30 1975-12-09 Harsco Corp Rack and pinion hoist
US3851854A (en) * 1973-07-05 1974-12-03 F Roybal Construction robot

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635491A (en) * 1983-08-10 1987-01-13 Fuji Electric Co., Ltd. Fail-safe motor-driven cylinder for lifting apparatus
FR2640604A1 (fr) * 1988-12-15 1990-06-22 Otis Elevator Co Ascenseur avec machine d'entrainement a adherence embarquee
FR2655422A1 (fr) * 1989-12-06 1991-06-07 Armines Extensometre isostatique a axe vertical.
KR100394503B1 (ko) * 1999-06-07 2003-08-14 가부시끼가이샤 도시바 더블 데크 엘리베이터 카
ES2169973A1 (es) * 1999-10-08 2002-07-16 Belmonte Asensio Fernandez Mecanismo de desplazamiento vertical, ahorro energetico y frenado para ascensores.
KR100469966B1 (ko) * 2002-03-27 2005-02-02 주식회사 지암메디테크 저층용 엘리베이터의 구동장치
RU2497743C1 (ru) * 2012-07-09 2013-11-10 Открытое акционерное общество "Конструкторское бюро специального машиностроения" Судовой подъемник
CN105347144A (zh) * 2015-11-30 2016-02-24 内蒙古包钢钢联股份有限公司 安全轿厢
CN109132794A (zh) * 2016-09-23 2019-01-04 泉州创源机电科技有限公司 一种螺杆式垂直电梯及其工作方法
CN109534130A (zh) * 2018-08-14 2019-03-29 张元� 一种多螺杆多层住宅电梯
RU198578U1 (ru) * 2019-11-20 2020-07-16 Антон Игоревич Половинкин Вертикальный подъемник для лиц с ограниченными возможностями

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB IT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SANSCORD AUSTRALIA PTY. LIMITED

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Owner name: SANSCORD AUSTRALIA PTY. LIMITED

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Effective date: 19810611

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Effective date: 19841006

ITCP It: supplementary protection certificate

Spc suppl protection certif: CCP 172

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Inventor name: PERKINS, REX HENLEY