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WO2020050768A9 - A mechanism for a safety device for a lift car, a safety device for protecting against unintended car movement of a lift car and a safety arrangement for a lift system - Google Patents

A mechanism for a safety device for a lift car, a safety device for protecting against unintended car movement of a lift car and a safety arrangement for a lift system Download PDF

Info

Publication number
WO2020050768A9
WO2020050768A9 PCT/SE2019/050833 SE2019050833W WO2020050768A9 WO 2020050768 A9 WO2020050768 A9 WO 2020050768A9 SE 2019050833 W SE2019050833 W SE 2019050833W WO 2020050768 A9 WO2020050768 A9 WO 2020050768A9
Authority
WO
WIPO (PCT)
Prior art keywords
brake
car
safety device
lift
lift car
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
PCT/SE2019/050833
Other languages
French (fr)
Other versions
WO2020050768A1 (en
Inventor
Henrik LINDSTRÖM
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.)
Alimak Group Sweden AB
Original Assignee
Alimak Group Sweden AB
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 Alimak Group Sweden AB filed Critical Alimak Group Sweden AB
Priority to EP19857563.1A priority Critical patent/EP3847119A4/en
Publication of WO2020050768A1 publication Critical patent/WO2020050768A1/en
Publication of WO2020050768A9 publication Critical patent/WO2020050768A9/en
Anticipated expiration legal-status Critical
Ceased 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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • 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
    • B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
    • B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
    • 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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/048—Testing of overspeed governor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/024—Braking members; Mounting thereof the braking surface being inclined with respect to the rotor's axis of rotation at an angle other than 90 degrees, e.g. comprising a conical rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2129/00—Type of operation source for auxiliary mechanisms
    • F16D2129/04—Mechanical
    • F16D2129/043—Weights

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Braking Arrangements (AREA)
  • Emergency Lowering Means (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The present invention relates to a mechanism (20) for a safety device for lift car for preventing unintended car movement of the lift car. The mechanism comprise a brake (21) and at least one trigger element (30A,30B) which is coupled to the brake, wherein the at least one trigger element being capable of rotating around a regulator shaft of the safety device, wherein the at least one trigger element being brought into a trigger state by the brake (21) when the mechanism is activated, and in the trigger state, the at least one trigger element (30A,30B is prevented from rotating by the brake (21), wherein the at least one trigger element (30A,30B) is connected to a first drive gear (24) wherein the brake (21) comprises a rotatable brake shaft (23) provided with a second drive gear (26) which is engaged with the first drive gear (24), and the brake comprises a brake arrangement (25) adapted to be engaged with the brake shaft when the mechanism is in an active state for braking the rotation of the brake shaft, the first and second drive gear and the at least one trigger element. The present invention also relates to safety device for a lift car and a safety arrangement for a lift system for preventing unintended car movement of the lift car.
PCT/SE2019/050833 2018-09-07 2019-09-05 A mechanism for a safety device for a lift car, a safety device for protecting against unintended car movement of a lift car and a safety arrangement for a lift system Ceased WO2020050768A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19857563.1A EP3847119A4 (en) 2018-09-07 2019-09-05 A mechanism for a safety device for a lift car, a safety device for protecting against unintended car movement of a lift car and a safety arrangement for a lift system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1851064-4 2018-09-07
SE1851064A SE542493C2 (en) 2018-09-07 2018-09-07 A mechanism for a safety device for a lift car, a safety device for protecting against unintended car movement of a lift car and a safety arrangement for a lift system

Publications (2)

Publication Number Publication Date
WO2020050768A1 WO2020050768A1 (en) 2020-03-12
WO2020050768A9 true WO2020050768A9 (en) 2020-11-12

Family

ID=69721707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2019/050833 Ceased WO2020050768A1 (en) 2018-09-07 2019-09-05 A mechanism for a safety device for a lift car, a safety device for protecting against unintended car movement of a lift car and a safety arrangement for a lift system

Country Status (3)

Country Link
EP (1) EP3847119A4 (en)
SE (1) SE542493C2 (en)
WO (1) WO2020050768A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102828490B1 (en) * 2024-10-08 2025-07-03 삼성이앤에이 주식회사 Fall prevention device and large capacity lift for construction

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415343A (en) * 1967-04-18 1968-12-10 Alimak Verken Ab Catch apparatus for the cages of scaffold elevators and the like
DE2753079A1 (en) * 1977-11-29 1979-05-31 Elba Werk Maschinen Gmbh & Co CATCHING DEVICE FOR ELEVATORS, IN PARTICULAR SUCH WITH RACK DRIVE
FI95021C (en) * 1993-06-08 1995-12-11 Kone Oy Method and apparatus for triggering an elevator gripping device
FI120303B (en) * 2005-06-23 2009-09-15 Kone Corp Method and apparatus for triggering a captive device in an elevator
WO2007122282A1 (en) * 2006-04-20 2007-11-01 Kone Corporation Elevator
JP5157648B2 (en) * 2008-05-30 2013-03-06 フジテック株式会社 Elevator governor
US20110127116A1 (en) * 2008-08-28 2011-06-02 Mitsubishi Electric Corporation Governor for elevator
KR101199745B1 (en) 2009-01-20 2012-11-08 미쓰비시덴키 가부시키가이샤 Safety device for elevator
US20150014100A1 (en) * 2012-03-06 2015-01-15 Mitsubishi Electric Corporation Elevator governor and elevator device
DE102012016336A1 (en) * 2012-08-20 2014-02-20 Bode Components Gmbh Speed limiter for safety gear of elevator car for elevator system, has limiter wheel, in which rope of elevator system is performed, where locking unit is connected with limiter wheel

Also Published As

Publication number Publication date
EP3847119A1 (en) 2021-07-14
SE542493C2 (en) 2020-05-26
SE1851064A1 (en) 2020-03-08
EP3847119A4 (en) 2022-09-07
WO2020050768A1 (en) 2020-03-12

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