EP1013595A2 - Aufzugsnotbremsvorrichtung mit doppelter Wirkung - Google Patents

Aufzugsnotbremsvorrichtung mit doppelter Wirkung Download PDF

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Publication number
EP1013595A2
EP1013595A2 EP99500246A EP99500246A EP1013595A2 EP 1013595 A2 EP1013595 A2 EP 1013595A2 EP 99500246 A EP99500246 A EP 99500246A EP 99500246 A EP99500246 A EP 99500246A EP 1013595 A2 EP1013595 A2 EP 1013595A2
Authority
EP
European Patent Office
Prior art keywords
guide rail
upwards
downwards
elevators
wedge
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Withdrawn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
EP99500246A
Other languages
English (en)
French (fr)
Other versions
EP1013595A3 (de
Inventor
Francisco De Asis Mateo Mur
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.)
Dynatech Dynamics and Technology SL
Original Assignee
Dynatech Dynamics and Technology SL
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 Dynatech Dynamics and Technology SL filed Critical Dynatech Dynamics and Technology SL
Publication of EP1013595A2 publication Critical patent/EP1013595A2/de
Publication of EP1013595A3 publication Critical patent/EP1013595A3/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Withdrawn legal-status Critical Current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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well

Definitions

  • the invention here disclosed consists of an emergency braking system for elevators, of double action, upwards and downwards, from among the emergency braking systems for elevators.
  • the invention is characterised by a permanent control of the motion of the elevator in either of its directions of operation, by means of a brake shoe and a double roller train and by an intermediate push wedge which acts on an elastic element which governs the braking effort, in addition to a block for receiving this set.
  • Emergency braking systems known as parachutes in the industrial sector jargon, are characterised in that they prevent uncontrolled motion during downwards motion of elevators.
  • the invention object of the present memory relates to an emergency braking system for elevators of double action, upwards and downwards, from among the progressive type of emergency braking systems for elevators.
  • This invention is characterised by a permanent control of the motion of the elevator, in either of its directions of motion, upwards and downwards, by incorporating a parachute in each guide rail, installed in a block receiving both a brake shoe and a double roller train as well as an intermediate wedge which transmits the force of the roller on an elastic element, which acts as a progressive brake, as the guide rail is caught between the shoe and the corresponding roller.
  • the receiving block is provided with a simple cover and corresponding main end orifices for the guide rail of the elevator to pass, as well as a further orthogonal one, for the connection to the rudder to pass, so that it can be activated by a conventional external speed governor when it detects a speed over the load limit, either in the counterweight or in the cab itself, at which moment the rudder is activated.
  • a brake shoe Inserted centrally and fitted between a small internal mortising of the transverse guide rail pass orifice is provided a brake shoe, in a rectangular prism shaped part, which traps the guide rail when the latter is displaced by a roller train.
  • the braking action is carried out by a further moving part, also internal and central with respect to the same orifice, so that its outer flat face is opposite the shoe, and with its other face presenting an internal concave finish, as well as rounded edges in a wide circular sector which may or not be housed in one of the ends opposite these circular sectors of a further internal larger mortising of the guide rail pass orifice, placed on the opposite side to the previous one.
  • Said flat face is surpassed on its ends by both rollers, which are concentric and with axes coinciding with those of the large circular sectors, as well as with generatrices provided by a multiplicity of pyramidal flanges.
  • both rollers In its resting position both rollers are distanced from the guide rail, while when they are in use they bear on it, while a special surface finish of the concave side of the braking train prevents jamming, with a lubricated material, such as a bronze.
  • the brake train must previously abandon its position of opposition to the brake shoe, by action of the rudder cam towards either of the two ends of the circular mortising, which is occupied by one of the rollers, while the other one is moved forwards by the pressure received from the wedge housed in the inner concave area of the train, which exerts a normal force on the roller, supplied by an elastic element placed in the rear.
  • the wedge is provided with flaps which act as external stops of the motion and which are placed inside a small mortising which communicates with that of the roller train on one side, and on the other side with a further larger rectangular mortising provided with a rear notch, so that in the former is housed the elastic element in contact with the wedge, while the opposite more internal mortising absorbs the bulging caused by the displacement of the wedge as it is displaced by the oblique motion of the train on the ledge of the wedge when it is moved by the rudder, so that this bulging also helps to prevent jamming during braking.
  • the progressive regulation of the braking in either direction of motion of the elevator is determined by the action of the elastic element placed in the rear.
  • Figure 1 shows the receiving block uncovered, in order to show the construction and arrangement of the brake shoe and the roller train which acts on the elevator guide rail, as well as the rudder, the wedge and the elastic elements of the invention.
  • Figure 2 shows schematically both alternative braking positions, which correspond to the downwards and upwards motion of the elevator.
  • the present invention relates to an emergency braking system for elevators of double action, upwards and downwards, among emergency and progressive elevator braking systems, essentially characterised by a permanent control of the motion of the elevator in either of its directions of motion, upwards and downwards, by means of corresponding parachutes provided in each guide rail, constructed in a block (1) which incorporates a brake shoe (2) with a knurled front, for progressive braking of guide rail (4) by pressure of a double roller train (5) actuated by a wedge (6), with the braking effort controlled by elastic elements (8) by trapping guide rail (4) between the brake shoe (2) and one roller (3) of train (5).
  • Block (1) is provided with a cover and corresponding orifices (1.1) on the end for allowing passage of guide rail (4), as well as having a mortising (1.2) in which is placed shoe (2), with rudder (7) for driving train (5) arranged projecting out of block (1).
  • train (5) receives in its inner concave finish (5.1) the outer end (6.2) of wedge (6), and is also provided with rounded edges (5.2) coaxial to protruding rollers (3) which are provided with a number of pyramidal flanges, housing in its braking position any of said rollers (3) in any of the rounded edges of a further lateral mortising (1.3) of orifice (1.1), depending on whether the elevator motion is upwards or, respectively, downwards, while bearing on guide rail (4) is the other roller (3), pushed forwards by the pressure of wedge (6), bored and with double inclination, upwards and downwards, which is provided with stop flaps (6.1) on a flange of the opening of a third mortising (1.4) which houses the set of elastic elements (8), in contact with wedge (6), and in turn internally extending this mortising (1.4) in order to absorb the bulging of the elastic element (8).
  • the number of elastic elements can vary and is adjusted on site depending on the weight of the elevator, all internal elements (8.1) made with identical thickness in order to simplify elasticity calculations for the set, changing only the thickness of the elastic element housed in the outermost end (8.2), which corresponds to the final adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
EP99500246A 1998-12-22 1999-12-22 Aufzugsnotbremsvorrichtung mit doppelter Wirkung Withdrawn EP1013595A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9802662A ES2154200B1 (es) 1998-12-22 1998-12-22 Sistema de frenado de emergencia para ascensores, de doble efecto, ascendente y descendente.
ES9802662 1998-12-22

Publications (2)

Publication Number Publication Date
EP1013595A2 true EP1013595A2 (de) 2000-06-28
EP1013595A3 EP1013595A3 (de) 2001-03-07

Family

ID=8306172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99500246A Withdrawn EP1013595A3 (de) 1998-12-22 1999-12-22 Aufzugsnotbremsvorrichtung mit doppelter Wirkung

Country Status (2)

Country Link
EP (1) EP1013595A3 (de)
ES (1) ES2154200B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501415A1 (de) * 2005-01-21 2006-08-15 Wittur Gmbh Brems- bzw. fangeinrichtung für eine aufzugskabine
EP1735231A2 (de) * 2004-02-20 2006-12-27 Otis Elevator Company Vorrichtung zum bewegen einer plattform entlang aufzugsführungsschienen
DE102006043890A1 (de) * 2006-09-19 2008-03-27 Wittur Ag Selbstrückstellmechanismus für eine Bremsfangeinrichtung Typ BSG
CN101028900B (zh) * 2001-06-29 2012-02-15 三菱电机株式会社 电梯紧急制动装置
US8573365B2 (en) 2001-06-29 2013-11-05 Mitsubishi Denki Kabushiki Kaisha Emergency brake apparatus for elevator system
EP3286123B1 (de) 2015-04-21 2020-04-08 thyssenkrupp Stairlifts B.V. Treppenlift
KR20210123754A (ko) * 2020-04-06 2021-10-14 주충호 작업용 리프트의 추락을 방지하는 제동장치
US20220250873A1 (en) * 2019-08-29 2022-08-11 Dynatech, Dynamics & Technology, S.L. Electromechanical activation of a bidirectional emergency stop device for a lift

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2184614B1 (es) * 2001-05-25 2004-10-01 S.A. De Vera (Savera) Paracaidas progresivo bidireccional para ascensor.
ES2184615B1 (es) * 2001-05-30 2004-10-01 S.A. De Vera (Savera) Paracaidas progresivo bidireccional para ascensor.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE513405C (de) * 1930-11-27 Atg Ailgemeine Transportanlage Fangvorrichtung fuer Aufzuege
DE805782C (de) * 1949-05-27 1951-05-31 Gustav Hahn Dipl Ing Bremsfangvorrichtung fuer Aufzuege
EP0498597A2 (de) * 1991-02-06 1992-08-12 Otto Lok-To Poon Fangvorrichtung für Aufzüge
US5224570A (en) * 1990-12-07 1993-07-06 Inventio Ag Brake catching device for elevator car and counterweight

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59702206D1 (de) * 1996-03-01 2000-09-21 Cobianchi Liftteile Ag Muensin Bremsfangvorrichtung und bremsbacke, insbesondere für aufzugskabinen
ES1040377Y (es) * 1998-06-04 1999-08-16 Latapia Llinas Alejandro Freno de seguridad de ascensor paracaidas mejorado para actuacion ascendente y descendente.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE513405C (de) * 1930-11-27 Atg Ailgemeine Transportanlage Fangvorrichtung fuer Aufzuege
DE805782C (de) * 1949-05-27 1951-05-31 Gustav Hahn Dipl Ing Bremsfangvorrichtung fuer Aufzuege
US5224570A (en) * 1990-12-07 1993-07-06 Inventio Ag Brake catching device for elevator car and counterweight
EP0498597A2 (de) * 1991-02-06 1992-08-12 Otto Lok-To Poon Fangvorrichtung für Aufzüge

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101028900B (zh) * 2001-06-29 2012-02-15 三菱电机株式会社 电梯紧急制动装置
US8573365B2 (en) 2001-06-29 2013-11-05 Mitsubishi Denki Kabushiki Kaisha Emergency brake apparatus for elevator system
EP1735231A2 (de) * 2004-02-20 2006-12-27 Otis Elevator Company Vorrichtung zum bewegen einer plattform entlang aufzugsführungsschienen
EP1735231A4 (de) * 2004-02-20 2009-09-09 Otis Elevator Co Vorrichtung zum bewegen einer plattform entlang aufzugsführungsschienen
EP2275377A1 (de) * 2004-02-20 2011-01-19 Otis Elevator Company Vorrichtung zum Bewegen einer Plattform auf Aufzugsführungsschienen
AT501415A1 (de) * 2005-01-21 2006-08-15 Wittur Gmbh Brems- bzw. fangeinrichtung für eine aufzugskabine
AT501415B1 (de) * 2005-01-21 2009-01-15 Wittur Gmbh Brems- bzw. fangeinrichtung für eine aufzugskabine
DE102006043890A1 (de) * 2006-09-19 2008-03-27 Wittur Ag Selbstrückstellmechanismus für eine Bremsfangeinrichtung Typ BSG
EP3286123B1 (de) 2015-04-21 2020-04-08 thyssenkrupp Stairlifts B.V. Treppenlift
US20220250873A1 (en) * 2019-08-29 2022-08-11 Dynatech, Dynamics & Technology, S.L. Electromechanical activation of a bidirectional emergency stop device for a lift
KR20210123754A (ko) * 2020-04-06 2021-10-14 주충호 작업용 리프트의 추락을 방지하는 제동장치

Also Published As

Publication number Publication date
ES2154200B1 (es) 2001-11-01
ES2154200A1 (es) 2001-03-16
EP1013595A3 (de) 2001-03-07

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