EP1343712A1 - Sicherheitsvorrichtung für einen aufzug - Google Patents

Sicherheitsvorrichtung für einen aufzug

Info

Publication number
EP1343712A1
EP1343712A1 EP01994849A EP01994849A EP1343712A1 EP 1343712 A1 EP1343712 A1 EP 1343712A1 EP 01994849 A EP01994849 A EP 01994849A EP 01994849 A EP01994849 A EP 01994849A EP 1343712 A1 EP1343712 A1 EP 1343712A1
Authority
EP
European Patent Office
Prior art keywords
safety device
elevator
shaft
safety
space
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.)
Granted
Application number
EP01994849A
Other languages
English (en)
French (fr)
Other versions
EP1343712B1 (de
Inventor
Jukka MÄKI
Marco Steen
Seppo Ketoviita
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.)
Kone Corp
Original Assignee
Kone Corp
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 Kone Corp filed Critical Kone Corp
Publication of EP1343712A1 publication Critical patent/EP1343712A1/de
Application granted granted Critical
Publication of EP1343712B1 publication Critical patent/EP1343712B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the present invention relates to an elevator safety device as defined in the preamble of claim 1.
  • a safety buffer arrangement provided for maintenance purposes at the bottom of the elevator shaft.
  • the safety buffers according to said application can be arranged in the path of the elevator car so as to prevent the car from moving downward beyond a certain distance from the bottom of the shaft and likewise below the counterweight to prevent the car from moving upward beyond a certain dis- tance from the top of the shaft.
  • the safety devices according to this specification are arranged on the bottom of the shaft in a lying position, from which they can be raised into the path of the car or counterweight when necessary. However, when lying on the bottom of the shaft, they take up some space in the vertical direction as well, and so they are not applicable in solutions where the space below the car is very small.
  • Another way of providing a safety space is to use removable buffer beams, which are mounted in place temporarily to allow maintenance operations when a safety space is needed.
  • the known solutions occupy a space under the car when it is moving and are difficult to automate.
  • the object of the invention is to disclose a new type of safety device designed to ensure a sufficient space above and below the elevator car in a maintenance situation in the case of elevators having a small shaft space.
  • the invention is based on the idea of making as efficient use of the empty space at the shaft bottom as possible so that the safety device need not take up any space in the vertical direction under the car unit (consisting of the car and the car frame) during normal operation of the elevator. Placing the safety device in the space between the counterweight and the car unit on the bottom of the shaft allows it to remain out of the way of the car unit when the latter is moving.
  • the safety device of the invention prevents the motion of the car unit by being turned to a position under the car unit, with the result that buffers attached to the underside of the car unit hit the safety device and the car unit stops at a certain height from the shaft bottom.
  • the safety device of the invention can be easily automated. Being placed between the car unit and the counterweight, it does not occupy any space under the elevator when the latter is moving. Therefore, it can be used in elevators having a very small space below the car. This safety device can also be used in other types of elevator.
  • the safety device has a plate-like structure that also allows it to function as a guard structure between movable parts in the shaft.
  • Fig. 1 presents a safety device according to the invention.
  • Fig. 2 presents the safety device in normal position.
  • Fig. 3 presents the safety device in operating position.
  • Fig. 1 presents a safety device 1 according to the invention, made of a durable material, such as steel, comprising a plate-like stopping device hinged on the shaft bottom by pivots 6. Fitted on the upper end of the stopping device is a rail 5 provided with two supports 8 designed to meet safety buffers attached to the underside of the car unit 9. The safety buffers may also be mounted on the safety device, and their function is to dampen the impact.
  • the car unit comprises the car and the car frame or only the car.
  • the safety device turns on its pivots 6 between a normal position and an operating position.
  • the safety device also comprises a locking device 7, which locks the safety device 1 in the operating position. The locking device can be opened and closed manually.
  • the safety de- vice also comprises a holding mechanism 20, such as a magnet, designed to hold the safety device in the operating position.
  • the magnet grabs the elevator guide rails.
  • the holding mechanism also holds the safety device in the normal position, with the magnet grabbing a shaft structure and thus holding the device in an upright position.
  • the safety device is provided with a micro switch for identifying its position and giving the elevator control system data indicating a safety guarding position.
  • the safety device 1 is in the normal position, which is used when the elevator is operating normally between floors.
  • the safety device is placed on the bottom 10 of the shaft in a space 14 between the counterweight and the car unit.
  • the car unit comprises a car 19 and a car frame 18 or only a car 19.
  • Space 14 comprises the space between one outer edge 15 of the car unit and a shaft wall 13, in which space the counterweight 16 is moving.
  • the figure shows the counterweight 16, although in reality it cannot be in the lower part of the shaft when the car unit is at the bottom floor. In the situation presented in the figure, the car unit 9 has reached the bottom floor.
  • the safety device is well applicable for use in a solution with a small space below the car as it does not take up any space under the car unit when the latter is moving.
  • the car unit is first stopped at a position where the serviceman can get onto the car top after having opened the doors 11.
  • the top of the car unit is provided with a rail-like safety device 12 that can be turned on the top of the car unit into a safety guarding position.
  • Fig. 3 presents the safety device 1 in an operating position, in which it stops the car unit at a certain height from the shaft bottom 10, thus ensuring a safety space.
  • the safety device 1 is mounted on the bottom by pivots 6, of which there are a total of two for one safety device.
  • a serviceman wants to work on the shaft bottom, he first opens the door on the bottom floor, thereby preventing movement of the eleva- tor.
  • the serviceman enters the shaft pit and releases the safety device 1 from its holding mechanism and turns it into the operating position, into the path of the car unit.
  • the safety device is now locked by the locking device and the holding mechanism, ensuring that a safety space exists in the pit.
  • the safety device is turned into its normal position, the upright position, whereupon the person leaves the pit and the elevator control system is given data indicating that the elevator is allowed to move.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP01994849.6A 2000-12-22 2001-12-19 Sicherheitsvorrichtung für einen aufzug Expired - Lifetime EP1343712B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20002851 2000-12-22
FI20002851A FI112640B (fi) 2000-12-22 2000-12-22 Hissin turvalaite
PCT/FI2001/001135 WO2002051737A1 (en) 2000-12-22 2001-12-19 Safety device for an elevator

Publications (2)

Publication Number Publication Date
EP1343712A1 true EP1343712A1 (de) 2003-09-17
EP1343712B1 EP1343712B1 (de) 2014-05-21

Family

ID=8559810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01994849.6A Expired - Lifetime EP1343712B1 (de) 2000-12-22 2001-12-19 Sicherheitsvorrichtung für einen aufzug

Country Status (5)

Country Link
EP (1) EP1343712B1 (de)
CN (1) CN1224570C (de)
FI (1) FI112640B (de)
HK (1) HK1059614A1 (de)
WO (1) WO2002051737A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11028119B2 (en) 2013-10-29 2021-06-08 Otsuka Pharmaceutical Co., Ltd. Synthetic route to 2′-deoxy-2′,2′-difluorotetrahydrouridines
US11078043B2 (en) 2017-05-12 2021-08-03 Otis Elevator Company Elevator overrun systems

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ532767A (en) 2003-05-21 2004-12-24 Inventio Ag Lift installation with a buffer for creating a zone of protection in a lift installation and a method of creating a zone of protection
CN101068742B (zh) * 2004-11-30 2010-12-22 奥蒂斯电梯公司 设有可折叠起来的冲击吸收柱的电梯轿厢及相应的电梯
FI120091B (fi) * 2006-11-10 2009-06-30 Kone Corp Vastapainoton vetopyörähissi
DE102007049737A1 (de) 2007-10-16 2009-04-23 Exclusive Lift Gmbh Aufzuganlage für Personen und/oder Lasten mit zumindest einer Aufzugkabine
WO2013025185A1 (en) * 2011-08-12 2013-02-21 Otis Elevator Company Low pit access detection and monitoring
EP2838827B1 (de) * 2012-04-20 2020-07-15 KONE Corporation Prüfvorrichtung sicherheitsanordnung
CN108137276A (zh) * 2015-09-25 2018-06-08 奥的斯电梯公司 可触及式电梯缓冲器
US20220024719A1 (en) * 2018-12-19 2022-01-27 Inventio Ag Device for creating a temporary protective space
US11691847B2 (en) 2019-06-20 2023-07-04 Tk Elevator Corporation Elevator travel blocking apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1203821B (it) * 1983-05-25 1989-02-23 G M V Service Srl Dispositivo automatico per creare un vano di sicurezza in apparati per ascensore o montacarichi privi di buca
SE456417B (sv) * 1984-03-20 1988-10-03 Sven Agren Hissanordning
CH667638A5 (en) * 1985-09-27 1988-10-31 Inventio Ag Safety device for maintenance space under lift cabin - has prop swung outwards under cabin after carrier arm has been positioned
JPH0318575A (ja) * 1989-06-16 1991-01-28 Mitsubishi Electric Corp エレベータの運転回路
NL9100059A (nl) * 1991-01-11 1992-08-03 Otis Liften B V Beveiligingsinrichting voor een lift.
CA2166841C (en) * 1995-01-31 2006-08-22 Heinrich Foelix Temporary working space protection
JPH0958942A (ja) * 1995-08-22 1997-03-04 Mitsubishi Denki Bill Techno Service Kk エレベーターの間隔保持装置
US5806633A (en) * 1995-12-22 1998-09-15 Macuga; Henry J. Elevator safety system incorporating false pit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02051737A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11028119B2 (en) 2013-10-29 2021-06-08 Otsuka Pharmaceutical Co., Ltd. Synthetic route to 2′-deoxy-2′,2′-difluorotetrahydrouridines
US11078043B2 (en) 2017-05-12 2021-08-03 Otis Elevator Company Elevator overrun systems

Also Published As

Publication number Publication date
CN1481332A (zh) 2004-03-10
FI20002851A0 (fi) 2000-12-22
WO2002051737A1 (en) 2002-07-04
EP1343712B1 (de) 2014-05-21
FI112640B (fi) 2003-12-31
HK1059614A1 (en) 2004-07-09
FI20002851A (fi) 2002-06-23
CN1224570C (zh) 2005-10-26

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