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WO2015052109A1 - Frein parachute pour cabine d'ascenseur - Google Patents

Frein parachute pour cabine d'ascenseur Download PDF

Info

Publication number
WO2015052109A1
WO2015052109A1 PCT/EP2014/071292 EP2014071292W WO2015052109A1 WO 2015052109 A1 WO2015052109 A1 WO 2015052109A1 EP 2014071292 W EP2014071292 W EP 2014071292W WO 2015052109 A1 WO2015052109 A1 WO 2015052109A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
spring
brake shoes
retaining element
levers
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/EP2014/071292
Other languages
German (de)
English (en)
Inventor
Max Brenner
Rudolf Ramseier
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.)
Cobianchi Liftteile AG
Original Assignee
Cobianchi Liftteile 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 Cobianchi Liftteile AG filed Critical Cobianchi Liftteile AG
Publication of WO2015052109A1 publication Critical patent/WO2015052109A1/fr
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
    • B66B5/16—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

Definitions

  • the invention relates to a brake-catching device for an elevator car, wherein the brake-catching device has at least one brake shoe which can be brought into contact with a stationary rail.
  • a safety brake device of the type mentioned is known from EP1733992A1.
  • a disadvantage of the known embodiment is that the provision of the brake safety device design-related high forces are required.
  • the known safety brake device therefore primarily serves as an emergency braking device and is not well suited for stopping the elevator car in a station.
  • a brake device of the type mentioned in the present invention in that it has two brake shoes, each arranged on a rotatably mounted lever and simultaneously engageable with opposite sides of the stationary rail in contact, so that the stationary rail of the two brake shoes clamped like a pliers.
  • An advantage of the solution according to the invention is that although very high braking forces can be generated with the safety brake device, the brake safety device can also be detached from the rail very easily.
  • the safety brake device according to the invention can be used for a wide variety of operating conditions, for example for stopping / holding the car and also as an emergency brake device.
  • At least one spring acting on both levers and at least one switchable retaining element acting on the levers against a force generated by the spring are provided between the levers.
  • the force generated by the at least one spring causes a closing movement of the brake shoes to each other.
  • a simple reshuffling of the brake catching device from a catching position into a release position can be achieved in that a force can be generated by the retaining element, which force causes an opening movement of the brake shoes away from one another.
  • the brake shoes opposite free ends of the lever for returning the brake shoes from a catching position in which the brake shoes are closed and bear against the rail, in a release position in which the brake shoes are open and out of contact with the Rail are opposite to the force generated by the spring by means of the retaining element to each other.
  • the at least one retaining element can be deactivated by means of a trigger signal, whereby the brake shoes are pressed against each other by the force generated by the spring ,
  • the retaining element may be formed as an actuator which can be actuated by the trigger signal.
  • the actuator can be, for example, an electric, electromechanical, hydraulic, pneumatic, mechanical or hydropneumatic actuator.
  • the retaining element is designed as a pneumatic cylinder, which can be deactivated by venting or switched to a powerless state.
  • the spring and the retaining element viewed in the direction of the brake shoes are arranged in front of at least one pivot point of the lever, wherein the brake shoes are arranged after the at least one pivot point.
  • the force to be applied by the retaining element for resetting the brake shoes from a catching position into a release parting or the force required to fix the levers in the release parting can be minimized by arranging the at least one retaining element closer to the free end of the lever than the one at least one spring.
  • the at least one spring and the at least one retaining element are arranged on different sides of the lever with respect to at least one pivot point of the lever.
  • a good support of the spring and a good power transmission from the spring to the lever of the safety brake device can be achieved in that the two levers each have at least one receptacle for each end region of the at least one spring. According to a variant of the invention, it may be provided that the levers are rotatably mounted about two different pivot points.
  • the two levers can be rotatably mounted about a common pivot point and cross in the region of the pivot point.
  • 1 shows a first variant of a brake catching device according to the invention
  • 2 shows a second variant of a brake catch device according to the invention
  • Fig. 3 shows a third variant of a brake device according to the invention.
  • identical parts are provided with the same reference numerals or identical component names, wherein the disclosures contained in the entire description can be mutatis mutandis to identical parts with the same reference numerals and component names.
  • position information selected in the description such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
  • a brake catching device 1 for an elevator car can have two brake shoes 3, 4 which are each arranged on a rotatably mounted lever 5, 6.
  • the two brake shoes 3, 4 can be brought into contact with opposite sides of a stationary rail 2 at the same time and pinch the rail 2 like a pliers.
  • the rail 2 may be, for example, a guide rail for the elevator car.
  • one of the two levers 4, 5 may be formed cranked, so that the two levers 3, 4th sections do not lie in a common plane.
  • the brake shoes 3, 4 preferably also engage one another on the rail 2 in a plane opposite or at the same height.
  • a spring 7 and a retaining element 8 may be arranged between the levers 5, 6, a spring 7 and a retaining element 8 may be arranged.
  • the retaining element 8 is designed to be switchable and can be switched from a state in which it holds the levers 5, 6 against the force generated by the spring 7 on the levers 5, 6 acting force, in a state in which it the lever 4, 5 free.
  • the two levers 5, 6 may have receptacles for one end region of the spring 7 in order to ensure a good support of the spring 7.
  • the force generated by the spring 7, which may for example be designed as a compression spring, causes a closing movement of the brake shoes 3, 4 towards each other and presses the brake shoes 3, 4 in the catching position laterally against the rail 2.
  • the spring 7 is designed as a plate spring.
  • other types of torsion springs or coil springs can be used to implement the invention.
  • pneumatic springs is possible.
  • the retaining element 8 can be deactivated by a trigger signal, whereby the retaining element 8 is opened or switched without power, so that the brake shoes 3, 4 by the spring 7 moves towards each other and against the rail 2 can be pressed.
  • the trigger signal can be generated, for example, by a speed sensor or a sensor for detecting a loading weight of the elevator car or a sensor for detecting the position of the elevator car in a station, etc.
  • the sensor for generating the reliable triggering signal can be connected via a signal transmission path, which may be wired or wireless, connected to an elevator control, for example, a suitably programmed signal or microprocessor, which generates the trigger signal and transmitted to the retaining element 8.
  • the retaining element 8 may be formed as an actuator which can be actuated by the trigger signal.
  • the retaining element 8 may be formed as a pneumatic cylinder, which pulls the two free, the brake shoes 3, 4 opposite ends of the lever 5, 6 in the release position against each other. By ventilating the pneumatic cylinder, it can be switched without power, and the two ends of the levers 5, 6 opposite the brake calipers 3, 4 can be pressed apart by the spring 7.
  • the retaining element 8 can also stand and be held in readiness as a hydraulic expansion cylinder.
  • the spreader cylinder holding the brake calliper is deactivated and the pliers formed from the levers 4, 5 press the brake shoes 3, 4 on both sides against the rail 2 via the spring 7.
  • an electric cylinder could be used.
  • the spring 7 and the retaining element 8 in the direction of the brake shoes 3, 4 viewed in front of the pivot points 9, 10 of the lever 5, 6 may be arranged.
  • the retaining element 8 can in this case be arranged closer to the free ends of the levers 5, 6 than the at least one spring 7. The arrangement just mentioned makes it possible to reduce the force of the retaining element 8 required for re-dividing into the release division compared to other possible arrangements.
  • the two levers 13, 14 can be rotatably mounted about a common pivot point 14 and intersect in the region of the pivot point 14. If a compression spring is used as the spring 7, the catching position would be occupied by the retaining element 8 compressing the two free ends of the levers 12, 13 opposite the brake shoes 3, 4 against the force of the spring 7. Deactivation of the retaining element 8 would then bring about a force caused by the spring 7 provision of the brake shoes 3, 4 in the release division.
  • the retaining element 8 would press apart the two free, the brake shoes 3, 4 against opposite ends of the levers 12, 13 in the release position. If the spring 7 is used to bring the brake shoes 3, 4 in the release position, it may be dimensioned much weaker than in the case in which it serves to press the brake shoes 3, 4 against the rail 2.
  • the levers 16, 17 can be rotatably mounted about two different pivot points 19, 18, as is the case with the variant shown in FIG.
  • the spring 7 and the retaining element 8 with respect to the pivot points 18, 19 on different sides or portions of the levers 16, 17 are arranged.
  • the retaining element 8 and the spring 7 can be of the basic construction as shown in FIG. to be trained.
  • the retaining element 8 generates a compressive force to the two brake shoes 3, 4 apart to press, whereby the spring 7 is compressed.
  • the positions of the spring 7 and of the retaining element 8 are reversed, so that, as a spring 7, a tension spring can advantageously also be used instead of a compression spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

Frein parachute (1, 11, 15) destiné à une cabine d'ascenseur, le frein parachute (1, 11, 15) comprenant au moins une mâchoire de frein (3, 4) qui peut être mise en contact avec un rail fixe (2), le frein parachute (1, 11, 15) comprenant au moins deux mâchoires de frein (3, 4) qui se trouvent respectivement sur un levier (5, 6, 12, 13 16, 17) monté rotatif et peuvent simultanément être mises en contact avec des côtés mutuellement opposés du rail fixe (2) de sorte que le rail fixe (2) se trouve enserré à la manière d'une pince par les deux mâchoires de frein (3, 4).
PCT/EP2014/071292 2013-10-10 2014-10-06 Frein parachute pour cabine d'ascenseur Ceased WO2015052109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50650/2013A AT514823A1 (de) 2013-10-10 2013-10-10 Bremsfangvorrichtung für eine Aufzugskabine
ATA50650/2013 2013-10-10

Publications (1)

Publication Number Publication Date
WO2015052109A1 true WO2015052109A1 (fr) 2015-04-16

Family

ID=52117863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/071292 Ceased WO2015052109A1 (fr) 2013-10-10 2014-10-06 Frein parachute pour cabine d'ascenseur

Country Status (2)

Country Link
AT (1) AT514823A1 (fr)
WO (1) WO2015052109A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201410A1 (de) * 2016-01-29 2017-08-03 Thyssenkrupp Ag Bremsvorrichtung mit Druckübersetzer für eine Aufzugsanlage
DE102016201415A1 (de) * 2016-01-29 2017-08-03 Thyssenkrupp Ag Pneumatische Bremsbetätigung in einer Aufzugsanlage
CN107445013A (zh) * 2016-05-18 2017-12-08 奥的斯电梯公司 用于电梯系统的制动系统
CN108814408A (zh) * 2018-08-10 2018-11-16 中国建筑科学研究院有限公司建筑机械化研究分院 应用于擦窗机卷扬的自救限速器
DE102017209888A1 (de) * 2017-06-12 2018-12-13 Thyssenkrupp Ag Bremse für eine Aufzugsanlage
CN111741915A (zh) * 2018-03-28 2020-10-02 因温特奥股份公司 用于电梯设备的、特别是用作驻停和安全制动器的卡钳制动器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191229758A (en) * 1912-12-24 1913-12-24 Frank Usher Self Acting Safety Appliance for Pit Hoist or Lift Cages and the like.
US1936780A (en) * 1931-01-12 1933-11-28 Westinghouse Electric & Mfg Co Elevator brake
EP1733992A1 (fr) 2005-06-17 2006-12-20 Inventio Ag Dispositif parachute
EP2338821A1 (fr) * 2008-10-24 2011-06-29 Mitsubishi Electric Corporation Ascenseur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773869A (en) * 1928-01-13 1930-08-26 Schank Adolf Automatic stop gear for lift cages
FR2644765B2 (fr) * 1988-06-08 1991-07-05 Leroy Somer Frein electromagnetique a machoires de serrage
FR2670476A1 (fr) * 1990-12-12 1992-06-19 Marion Rene Taquet coulissant pour freinage de mobiles guides.
US5255760A (en) * 1991-10-02 1993-10-26 Inventio Ag Apparatus for detecting and signaling the function and status of an elevator safety brake
EP0873963A1 (fr) * 1997-04-25 1998-10-28 Inventio Ag Entraínement linéaire pour un dispositif de transport
DE102005053835B4 (de) * 2005-11-08 2010-04-08 Hartmut Bischoff Kompakte Bremszange mit hoher und variabler Kraftübersetzung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191229758A (en) * 1912-12-24 1913-12-24 Frank Usher Self Acting Safety Appliance for Pit Hoist or Lift Cages and the like.
US1936780A (en) * 1931-01-12 1933-11-28 Westinghouse Electric & Mfg Co Elevator brake
EP1733992A1 (fr) 2005-06-17 2006-12-20 Inventio Ag Dispositif parachute
EP2338821A1 (fr) * 2008-10-24 2011-06-29 Mitsubishi Electric Corporation Ascenseur

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201410A1 (de) * 2016-01-29 2017-08-03 Thyssenkrupp Ag Bremsvorrichtung mit Druckübersetzer für eine Aufzugsanlage
DE102016201415A1 (de) * 2016-01-29 2017-08-03 Thyssenkrupp Ag Pneumatische Bremsbetätigung in einer Aufzugsanlage
CN107445013A (zh) * 2016-05-18 2017-12-08 奥的斯电梯公司 用于电梯系统的制动系统
CN110753671B (zh) * 2017-06-12 2021-12-07 蒂森克虏伯电梯股份公司 用于电梯系统的制动器
DE102017209888A1 (de) * 2017-06-12 2018-12-13 Thyssenkrupp Ag Bremse für eine Aufzugsanlage
WO2018228983A1 (fr) * 2017-06-12 2018-12-20 Thyssenkrupp Elevator Ag Frein pour un système d'ascenseur
CN110753671A (zh) * 2017-06-12 2020-02-04 蒂森克虏伯电梯股份公司 用于电梯系统的制动器
EP3638611B1 (fr) * 2017-06-12 2025-03-12 TK Elevator Innovation and Operations GmbH Frein pour un système d'ascenseur
CN111741915A (zh) * 2018-03-28 2020-10-02 因温特奥股份公司 用于电梯设备的、特别是用作驻停和安全制动器的卡钳制动器
CN111741915B (zh) * 2018-03-28 2022-02-22 因温特奥股份公司 用于电梯设备的、特别是用作驻停和安全制动器的卡钳制动器
US11608247B2 (en) 2018-03-28 2023-03-21 Inventio Ag Caliper brake for an elevator system used as a holding and safety brake
CN108814408B (zh) * 2018-08-10 2020-07-24 中国建筑科学研究院有限公司建筑机械化研究分院 应用于擦窗机卷扬的自救限速器
CN108814408A (zh) * 2018-08-10 2018-11-16 中国建筑科学研究院有限公司建筑机械化研究分院 应用于擦窗机卷扬的自救限速器

Also Published As

Publication number Publication date
AT514823A1 (de) 2015-04-15

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