EP1849732A1 - Spaltbegrenzer für eine Aufzugskabine - Google Patents

Spaltbegrenzer für eine Aufzugskabine Download PDF

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Publication number
EP1849732A1
EP1849732A1 EP06112959A EP06112959A EP1849732A1 EP 1849732 A1 EP1849732 A1 EP 1849732A1 EP 06112959 A EP06112959 A EP 06112959A EP 06112959 A EP06112959 A EP 06112959A EP 1849732 A1 EP1849732 A1 EP 1849732A1
Authority
EP
European Patent Office
Prior art keywords
car
clearance
elevator
limiter
clearance limiter
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Withdrawn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
EP06112959A
Other languages
English (en)
French (fr)
Inventor
Daniel Fischer
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP06112959A priority Critical patent/EP1849732A1/de
Publication of EP1849732A1 publication Critical patent/EP1849732A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B66B5/0081—Safety of maintenance personnel by preventing falling by means of safety fences or handrails, being operable or not, mounted on top of the elevator car
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/007—Mining-hoist operation method for modernisation of elevators

Definitions

  • the invention relates to an elevator installation and in particular to an elevator installation having an elevator car with a clearance limiter projecting therefrom to ensure the safety of service personnel working from the car roof.
  • a balustrade 20 is normally installed on the car roof 4 to surround the car roof 4 and thereby ensure the safety of the service personnel and specifically to prevent them from falling through a gap G between the car 2 and the shaft walls 12 into the elevator shaft 10.
  • the balustrade 20 can be permanently erected on top of the car roof 4 or can be collapsible as described in EP-A1-1422185 . In either case, the balustrade 20 and its arrangement on the car roof 4 must comply with local regulations such as the ASME A17.1-2000 safety code for the United Stated of America or the EN 81-1:1998 standard throughout Europe. For example, the former of these two regulations requires that:
  • balustrade 20 Although the service personnel can work relatively freely within the area defined by the balustrade 20, a large proportion of the elevator components requiring maintenance such as the drive and the control are commonly located outside of the area defined by balustrade 20 and as such the balustrade 20 can severely hamper the service personnel when working on those components. Not only does this lead to an increase in the time and thereby the cost of maintenance and servicing operations but also frustrates the service personnel carrying out these tasks.
  • the collapsible balustrade 20 as described in EP-A1-1422185 is folded inwardly on top of the car roof 4 when not is use. This folding structure is complicated and therefore relatively expensive. Furthermore, it takes time for the service personnel to erect the balustrade 20 before they can commence their maintenance tasks.
  • the railings of the balustrade 20 When in its folded or stored position, the railings of the balustrade 20 crisscross the roof 4 making it at least difficult, if not impossible, to provide an effective emergency trap door in the car roof 4 to permit the rescue and evacuation of passengers.
  • the objective of the present is to overcome the problems associated with the prior art by providing an elevator installation comprising an elevator car having at least one clearance limiter permanently projecting outwards from the car.
  • the clearance limiter partially bridges a gap between the car and a shaft wall and therefore decreases the likelihood of service personnel falling through the gap into the shaft. Additionally, since the clearance limiter does not project upwards from the car, the overall vertical clearance between the car roof and the shaft ceiling can be reduced. As there is no physical vertical barrier, service personnel can work relatively freely from the top of the car with easier access to components mounted on the shaft walls. Furthermore, the clearance limiter effectively increases the size of the work area on top of the car. As the clearance limiter does not obstruct the exposed surface of the car roof, it is possible to provide an emergency trap door therein to permit the rescue and evacuation of passengers.
  • the clearance limiter is fastened to a top of the car roof. Since there are no space restrictions on the car roof, the clearance limiter can be secured in place relatively easily during initial installation of the elevator.
  • the invention also provides a method for installing an elevator car in an elevator shaft comprising the steps of determining that a gap between the car and at least one of the shaft walls is or will be greater than a predetermined limit and providing a clearance limiter on the car to partially bridge the gap. This method is particularly useful in the modernization of an existing elevator installation wherein a standard car is installed in an existing shaft.
  • a gap between the clearance limiter and a neighbouring shaft wall is less than 300 mm.
  • Fig. 1 is a sectional view of an upper portion of an elevator shaft 10 accommodating an elevator car 2 with a conventional safety balustrade 20 to prevent service personnel working on the car roof 4 from falling through a gap G between a car wall 6 and its neighbouring shaft wall 12.
  • the overall clearance between the car roof 4 and the ceiling 14 of the shaft 10 is relatively large because the balustrade 20, in order to fulfil the conditions of legal regulations, must have a certain minimum height B and there must also be a specific vertical clearance C between an upper rail of the balustrade 20 and the lowest part of the ceiling 14 (including any beam 16 or any other fixed component located under the ceiling 14).
  • FIG. 2 A first embodiment of the present invention is clearly shown in Fig. 2 where the balustrade 20 of the prior art is replaced by a clearance limiter in the form of a roof extension 30 which projects horizontally from the car roof 4.
  • the reduced gap G' between the roof extension 30 and the shaft wall 12 is much smaller than the gap G between the car wall 6 and the neighbouring shaft wall 12. Therefore, the risk to service personnel of falling into the shaft 10 through the reduced gap G' is significantly decreased.
  • the only other pertinent regulatory requirement with which the elevator installation must comply is to provide a minimum vertical overhead clearance T between car roof 4 and the lowest part of the ceiling 14 (including any beam 16 or any other fixed component located under the ceiling 14). Since this minimum clearance T is generally much smaller than the minimum balustrade height B there can be a significant reduction S in the overall height of the shaft 10. In the ASME safety code, for example, the value for T is quoted as 600 mm.
  • the invention provides a shaft height reduction R of 620 mm.
  • the invention reduces the overall clearance between the car roof 4 and the shaft ceiling 14 and thereby improves the space utilization of the elevator installation enabling the building owner to make commercial use of the space saved.
  • Fig. 3 shows the roof extension 30 of Fig. 2 in greater detail.
  • the car roof 4 is prefabricated with a cavity 34 to accommodate the roof extension 30.
  • the roof extension 30 is withdrawn from the cavity 34 to give the required gap or clearance G' between it and the neighbouring shaft wall 12 and is permanently secured in this position by any suitable fastening means such as screws 32.
  • a toe guard 44 is mounted along a side of the roof extension 30 that is remote from the car roof 4.
  • Fig. 4 shows a second embodiment of the present invention where the clearance limiter is a roof overhang 36.
  • the overhang 36 is permanently fastened to the car roof 4 by suitable means such as screws 32.
  • the overhang 36 comprises an upper sheet 36' which partially overlaps and is secured to the car roof 4 and a main body portion 36" suspended from the upper plate 36'.
  • the main body portion 36" and upper sheet 36' conform to the corner of the car roof 4 and thereby help to resist any bending moment when a load is placed on the overhang 36.
  • the overhang may consist of a simple metal sheet secured to the car roof 4 and projecting towards the shaft wall 12.
  • Fig. 5 illustrates a further embodiment wherein the clearance limiter is a bracket structure 38 secured to the car roof 4.
  • the structure 38 comprises a plurality of vertical brackets 38" connected to a horizontal upper surface 38'.
  • the brackets 38" are secured to the car roof 4 by any suitable means such as screws 32.
  • the brackets 38" can be secured to the side wall 6 of the car 2.
  • Fig. 6 depicts a fourth embodiment of the invention where the car roof 4 is prefabricated to have a horizontal area greater than that defined by the car walls 6 where the section 40 that projects beyond the car wall 6 acts as the clearance limiter.
  • Figure 7 is a plan view of an elevator car incorporating a clearance limiter 30, 36, 38, 40 according to any of the previously described embodiments.
  • the clearance limiter 30, 36, 38, 40 has a meshed horizontally projecting surface 42 to reduce the material cost, weight and dynamic drag.
  • the toe guard 44 may extend along the entire combined outer perimeter of the roof 4 and the clearance limiter 30, 36, 38, 40 to define the working platform and to prevent any loose items of equipment resting on the roof or on the clearance limiter from accidentally falling into the shaft 10 while the service personnel are working on the platform.
  • the invention is particularly, through not exclusively, useful in the modernization of an old elevator installation wherein a standard car 2 is installed in an existing shaft 10.
  • the equipment used in older elevator installations tended to be much more bulky than those currently used today and accordingly, the existing shaft 10 will generally have a much greater cross-sectional area than is actually required to for the new elevator car 2.
  • the designer would determine whether the gap G between the car 2 and at least one of the shaft walls 12 is (if the car 2 has already been installed in the shaft 10) or will be (prior to the installation) greater than a predetermined limit and, if so, provide a clearance limiter 30,36,37,40 on the car 2 to partially bridge the gap G.
  • clearance limiters can be mounted at other sides of the car to partially bridge the gap G between the car and the neighbouring walls.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)
EP06112959A 2006-04-24 2006-04-24 Spaltbegrenzer für eine Aufzugskabine Withdrawn EP1849732A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06112959A EP1849732A1 (de) 2006-04-24 2006-04-24 Spaltbegrenzer für eine Aufzugskabine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06112959A EP1849732A1 (de) 2006-04-24 2006-04-24 Spaltbegrenzer für eine Aufzugskabine

Publications (1)

Publication Number Publication Date
EP1849732A1 true EP1849732A1 (de) 2007-10-31

Family

ID=36581643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06112959A Withdrawn EP1849732A1 (de) 2006-04-24 2006-04-24 Spaltbegrenzer für eine Aufzugskabine

Country Status (1)

Country Link
EP (1) EP1849732A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2554202A1 (es) * 2015-07-22 2015-12-16 Mac Puar, S.A. Ascensor con suplemento de techo de cabina
WO2016110934A1 (ja) * 2015-01-05 2016-07-14 三菱電機株式会社 エレベータ装置
WO2017055387A1 (de) 2015-09-30 2017-04-06 Inventio Ag Aufzugsanlage
WO2017102961A1 (de) * 2015-12-16 2017-06-22 Inventio Ag Aufzugkabine
ES2652370A1 (es) * 2016-08-01 2018-02-01 Orona, S. Coop. Aparato elevador y método de funcionamiento de dicho aparato elevador
WO2019092781A1 (ja) * 2017-11-07 2019-05-16 三菱電機株式会社 エレベータ装置
CN111051232A (zh) * 2017-09-13 2020-04-21 三菱电机株式会社 电梯装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08133617A (ja) * 1994-11-02 1996-05-28 Mitsubishi Denki Bill Techno Service Kk エレベーターかご室上保守装置
JP2002128433A (ja) * 2000-10-19 2002-05-09 Mitsubishi Electric Corp エレベータのかご上作業安全装置
US20050252726A1 (en) * 2002-06-20 2005-11-17 Franck Det Safety top balustrade for a car of a machine room-less elevator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08133617A (ja) * 1994-11-02 1996-05-28 Mitsubishi Denki Bill Techno Service Kk エレベーターかご室上保守装置
JP2002128433A (ja) * 2000-10-19 2002-05-09 Mitsubishi Electric Corp エレベータのかご上作業安全装置
US20050252726A1 (en) * 2002-06-20 2005-11-17 Franck Det Safety top balustrade for a car of a machine room-less elevator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 09 4 September 2002 (2002-09-04) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016110934A1 (ja) * 2015-01-05 2016-07-14 三菱電機株式会社 エレベータ装置
ES2554202A1 (es) * 2015-07-22 2015-12-16 Mac Puar, S.A. Ascensor con suplemento de techo de cabina
CN108137269B (zh) * 2015-09-30 2019-11-05 因温特奥股份公司 电梯设备
CN108137269A (zh) * 2015-09-30 2018-06-08 因温特奥股份公司 电梯设备
AU2016333499B2 (en) * 2015-09-30 2019-06-20 Inventio Ag Lift system
WO2017055387A1 (de) 2015-09-30 2017-04-06 Inventio Ag Aufzugsanlage
EP3356272B1 (de) 2015-09-30 2019-11-06 Inventio AG Aufzugsanlage
US10843899B2 (en) 2015-09-30 2020-11-24 Inventio Ag Safety element of an elevator system
WO2017102961A1 (de) * 2015-12-16 2017-06-22 Inventio Ag Aufzugkabine
AU2016369344B2 (en) * 2015-12-16 2019-11-07 Inventio Ag Elevator cab
ES2652370A1 (es) * 2016-08-01 2018-02-01 Orona, S. Coop. Aparato elevador y método de funcionamiento de dicho aparato elevador
EP3279126A1 (de) 2016-08-01 2018-02-07 Orona, S. Coop. Aufzugvorrichtung und betriebsverfahren der besagten aufzugvorrichtung
CN111051232A (zh) * 2017-09-13 2020-04-21 三菱电机株式会社 电梯装置
CN111051232B (zh) * 2017-09-13 2022-02-25 三菱电机株式会社 电梯装置
WO2019092781A1 (ja) * 2017-11-07 2019-05-16 三菱電機株式会社 エレベータ装置

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