EP0883567B1 - Parachute a prise instantanee et machoire de frein, notamment pour cabines d'ascenseur - Google Patents

Parachute a prise instantanee et machoire de frein, notamment pour cabines d'ascenseur Download PDF

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Publication number
EP0883567B1
EP0883567B1 EP97903193A EP97903193A EP0883567B1 EP 0883567 B1 EP0883567 B1 EP 0883567B1 EP 97903193 A EP97903193 A EP 97903193A EP 97903193 A EP97903193 A EP 97903193A EP 0883567 B1 EP0883567 B1 EP 0883567B1
Authority
EP
European Patent Office
Prior art keywords
wedge
brake block
shaped
safety catch
brake shoe
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.)
Expired - Lifetime
Application number
EP97903193A
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German (de)
English (en)
Other versions
EP0883567A1 (fr
Inventor
Ervin Perroud
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 EP0883567A1 publication Critical patent/EP0883567A1/fr
Application granted granted Critical
Publication of EP0883567B1 publication Critical patent/EP0883567B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the present invention relates to a brake safety device, in particular for elevator cars with at least one spring assembly resilient first brake shoe and a wedge-shaped, on an oblique guide slidably mounted second brake shoe and at least one in one Opening of the second brake shoe provided to interact with the Inclined guide and a rail specific sprocket, the first brake shoe an upper part and one separated from the upper part by an inclined plane Includes lower part.
  • the brake safety device of the same size as a previously known should be about have twice the performance. According to the invention, this is achieved by that the displacement of the top is limited by bolts and the top is guided by the same and the first and second brake shoes on each other opposite sides are provided with transverse grooves.
  • One advantage of the brake safety device according to the invention is in that the release from the catch is easy, with known constructions can cause difficulties. With the drive motor for the lift you bring the brake safety device out of the catch. With the Brake safety device can generate twice the power as with a known device of approximately the same size.
  • a wedge-shaped third brake shoe is provided. This has the advantage that the safety gear for both the conventional catch after below as well as for catching upwards.
  • Fig. 1 is a section along line I-I of Fig. 3 and represents one Lift arrangement with two brake safety devices.
  • At the top is one Motor 1 and a transmission 2, a wheel 3 for the elevator ropes 4 and a speed limiter 5, 6.
  • the rope 4 is on the one hand on the cabin 7 and on the other hand attached to the counterweight 8.
  • Double frames 9 are on both sides of the cabin, a brake safety device 10 arranged.
  • the two braking devices can also be below the cabin are attached and are each with a square tube with each other connected.
  • the release lever is on one of the brake safety devices 11 mounted. This is attached to a steel cable 12 that over the speed limiter 5, 6 runs and is always tense with a weight 13. This rope runs at the same speed with every cabin movement With.
  • FIG. 2 shows a section along line II-II of FIG. 3.
  • Fig. 3 shows a section along line III-III of Fig. 2. From this Figure is still the square tube 16 can be seen, which the two brake gear devices 10 and 17 connects together.
  • FIG. 4 is a partial longitudinal section through the brake shoe according to the state of the art.
  • one Rear wall 20 are through on inclined levels 21 and 22 of the rear wall Compression springs 23 and 24 loaded wedges 25 and 26 are mounted.
  • the wedges are with Fenders 27 and 28 provided.
  • Spring assemblies 29 and 30 are arranged on the side of the rear wall, with retaining bolts 31 and 32 are embedded in the rear wall.
  • the spring assembly 29 and that Spring assembly 30 are shown in a relieved position.
  • To the retaining bolts 31 and 32 is followed by a threaded extension 33 and 34.
  • the two wedges 25 and 26 have a stop 35 respectively. 36 on the back wall.
  • Fig. 5 is a plan view according to arrow A of Fig. 4 on the brake shoe shown. It consists of a welded construction with two longitudinal flat bars 39 and 40 and two cross flat bars 41 and 42.
  • FIG. 6 is a side view, partly in section, of one according to the invention Brake safety device 10 shown in the rest position.
  • a housing 43 is by two rods 44 and 45 in two not shown in this figure Side panels are held, which are arranged above the lift cabin.
  • the one Rod 45 has a spring 46 for floating suspension of the housing 43 provided within the side plates.
  • Stop screw 77 is provided for the housing 43.
  • a first in the case The assembled brake shoe 47 comprises a lower part 48 and an upper part 49. Below the lower part 48, two spring assemblies 50 and 51 are arranged, inside which is arranged centrally each a guide pin 52 and 53.
  • the Guide bolts 52 and 53 extend through the lower part 48.
  • the lower part 48 designed as an inclined plane 75, is fixed in its position by the two guide bolts 52 and 53 and a screw 54.
  • the upper part 49 is the actual brake shoe element and is not by one in this figure illustrated spring pin movably fixed in the lower part and is in its Braking position held by a guided compression spring 69 and by the Guide pin 53.
  • the guide pin 53 of the lower part 48 rests at the bottom an opposite recess 55 of the upper part 49.
  • the guide pin 52 lies in this position of the recess 56 of the upper part 49 not at.
  • the upper part 49 is on its side facing the rail 14 Transverse grooves 57 (transverse to the longitudinal direction of the rail) provide the braking force increase.
  • the housing At the opposite end of the first brake shoe Housing 43 is the housing as an inclined guide 58 for the second wedge-shaped Brake shoe 15 formed. With two screws 59, a cover plate 60 is on Housing 43 attached.
  • the wedge-shaped brake shoe 15 faces the cover plate 60 adjacent side on a groove 61, in which two in the cover plate engage screwed screws 62.
  • the formation of the second brake shoe as a wedge with a sprocket is known.
  • One attached to the lever Tab 64 is using a compression spring 65 and a bolt 66 below pressed against the wedge.
  • the bolt 66 is secured within the wedge.
  • the Wedge 15 is on its side facing the rail 14 with transverse grooves 68 (transverse to the longitudinal direction of the rail). This arrangement of the grooves increases the braking force also of the second wedge-shaped brake shoe 15.
  • the upper part 49 the first brake shoe and the second wedge-shaped brake shoe are made of special cast iron manufactured. It will be a more stable and simpler construction with a higher one Guaranteed security than in the state of the art. With the inventive Safety gear can generate twice the braking force are about the same size as with a known device.
  • FIG. 7 shows a plan view of the brake safety device according to FIG Fig. 6.
  • FIG. 8 shows a side view of the brake safety device according to FIG Fig. 6, but in the catching position. In this position the cross grooves are located Surfaces of the upper part 49 of the first brake shoe 47 and the wedge-shaped second brake shoe 15 under the pressure of the partially compressed Spring assemblies 50 and 51 on the rail 14.
  • the upper part 49 of the first brake shoe 47 is held in its braking position by the two guide bolts 52 and 53. These are in the lower area according to Fig. 8 of the recesses 55 and 56 in the upper part 49.
  • the cabin goes like in 1 described in catch, the upper part 49 remains during the Braking in the position shown. This figure is in the range of wedge-shaped brake shoe 15, the sprocket 76 shown.
  • Fig. 9 is a plan view of the safety gear according to Fig. 8 shown.
  • FIG. 10 is a side view of the brake safety device in the intermediate position shown.
  • the "from the catch-lifting" of the lift cabin is through the invention greatly facilitated.
  • the upper part 49 slides on the inclined plane of the lower part 48 until the guide pin 53 moves at the top Part 70 of the recess 55 limited.
  • the compression spring 69 is compressed. In this position, the springs 50 and 51 are already relieved.
  • the wedge-shaped jaw 15 is disengaged further by the lever 11, bolt 66, spring 65 and tab 64 by means of a return spring, not shown.
  • To the "release from the catch” brings the spring 45 back into the safety gear the rest position and the compression spring 69 return the upper part 49 to its initial position back.
  • the identical starting position is indicated by the stop on Guaranteed guide pin according to FIG. 6.
  • FIG. 11 is a top view of the brake safety device according to FIG Fig. 10 can be seen.
  • Fig. 12 is a longitudinal section through the first brake shoe 47 in the rest position shown with lower part 48 and upper part 49.
  • FIG. 13 shows a top view of the brake shoe according to FIG. 12 with the side parts 71 of the lower part 48 and a stop 72 for the guided Compression spring 69.
  • the heavy-duty pin 73 can be seen, the upper Part 49 slidably fixed to the lower part 48.
  • the heavy duty pin 73 is inside an elongated opening 74 slidably when the upper part 49 against the lower part 48 is moved along the inclined plane 75.
  • the lower part 48 is milled from one piece.
  • FIG. 14 shows a view according to arrow B of FIG. 12.
  • 15 to 22 is another embodiment of the invention shown, in which a third wedge-shaped brake shoe is provided is that the safety gear also acts upwards.
  • the first and second brake shoes are according to the second embodiment 15 to 22 the same design as in the first embodiment.
  • Fig. 15 shows a side view, partly in section, of the second Embodiment of the safety brake device 78.
  • the first brake shoe 47 is designed the same as in the first embodiment, which is why on their detailed description is omitted, as it relates to the description 1 to 14 is disclosed.
  • a bracket 79 for the Bars 44 and 45 can be seen.
  • the second, wedge-shaped brake shoe 15 as well a third wedge-shaped brake shoe 80 are in the rest position.
  • the second wedge-shaped brake shoe 15 is designed the same as in the first embodiment 1 to 14.
  • the rods 44 and 45 are on the left side of the housing 43 connected to a bracket 81.
  • the second wedge-shaped brake shoe 15 and the third wedge-shaped brake shoe 80 are connected in an articulated manner by a connecting member 82.
  • the second, wedge-shaped brake shoe 15 lies on an inclined guide 96 of the housing 43 and the third wedge-shaped brake shoe 80 on an inclined guide 97 of the housing 43 on.
  • FIG. 17 shows a cross section through the device according to FIG. 15.
  • FIG. 18 shows a cross section through the device according to FIG. 16.
  • FIG 19 shows a side view, partly in section, of the second Embodiment of the brake safety device 78, namely in the position in the catch down. This position was traveled with regard to the first Described embodiment.
  • the second wedge-shaped brake shoe is located in the housing 43 with the toothed roller 76 opposite the rail 14.
  • the third wedge-shaped brake shoe 80 is located above the second wedge-shaped Brake shoe 15 without contact with the rail 14.
  • the mode of operation the first brake shoe 47 is the same as in the first embodiment.
  • the inclined guide 98 inside the housing 43 serves to retreat the roller 76 of the second wedge-shaped brake shoe 15.
  • FIG. 20 shows a view along line XX-XX of FIG. 19.
  • Fig. 21 shows a view of the third wedge-shaped brake shoe and 22 shows a section through the same.
  • the third wedge-shaped brake shoe 80 comprises a recess 86 for the longitudinally displaceable reception of a support roller 83.
  • the roller is held with an axis 88 in a roller holder 89 and in two side slots 90 and 91 of the brake shoe 80 out.
  • the roll holder 89 is connected to a guide pin 92 which against the pressure of a Compression spring 93 is slidably disposed in a guide tube 94.
  • the roller 83 has to take a certain position, therefore they spring loaded.
  • the roller guides the wedge-shaped third brake shoe 80 and touches it the rail 14 is not.

Landscapes

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

Claims (9)

  1. Parachute (10), en particulier pour cabines d'ascenseurs (7), avec une première mâchoire de frein (47) pouvant subir l'action d'au moins un empilement de ressorts (50, 51) et une deuxième mâchoire de frein (15) en forme de coin, montée, de manière à glisser, sur un guidage oblique (58, 96) d'une enveloppe (43) et au moins un galet denté (76) placé dans une ouverture de la deuxième mâchoire de frein (15) et devant agir de concert avec le guidage oblique (58, 96, 98) de l'enveloppe (43) et une glissière, la première mâchoire de frein (47) comprenant une partie supérieure (49) et une partie inférieure (48) séparée de la partie supérieure par un plan incliné (75), caractérisé en ce que le déplacemernt de la partie supérieure (49) est limité par des tiges (52, 53), la partie supérieure étant guidée par les tiges (52, 53), et en ce que la première et la deuxième mâchoires de frein présentent des rainures transversales (57, 68) sur leurs côtés qui se font face.
  2. Parachute selon la première revendication, caractérisé en ce qu'un dispositif de maintien (71, 72) d'un ressort de compression (69) servant à ramener la partie supérieure (49) dans sa position initiale est intégré à la partie inférieure (48) de la première mâchoire de frein (47).
  3. Parachute selon la revendication 1 ou 2, caractérisé en ce que la partie supérieure (49) est reliée à la partie inférieure (48), de manière à pouvoir être décalée, au moyen d'une goupille (73), par l'intermédiaire du dispositif de maintien (71, 72).
  4. Parachute selon l'une des revendications précédentes, caractérisé en ce que la deuxième mâchoire de frein (15) en forme de coin est reliée à une troisième mâchoire de frein en forme de coin (80) par l'intermédiaire d'un élément de liaison (82).
  5. Parachute selon la revendication 4, caractérisé en ce que l'enveloppe (43) comporte un guidage oblique (96) pour la deuxième mâchoire de frein (15) en forme de coin et un guidage oblique (97) pour la troisième mâchoire de frein en forme de coin (80).
  6. Parachute selon la revendication 4 ou 5, caractérisé en ce que l'enveloppe (43) contient un guidage oblique (98 servant à soutenir, en le portant, un galet (83) de la troisième mâchoire de frein en forme de coin (80) ou à permettre le retour en arrière du galet (76) de la deuxième mâchoire de frein (15) en forme de coin.
  7. Parachute selon l'une des revendications 4 à 6, caractérisé en ce que la troisième mâchoire de frein en forme de coin (80) est pourvue d'un galet porteur (83).
  8. Parachute selon la revendication 7, caractérisé en ce qu'un porte-galet (89) pourvu d'une tige de guidage (92) est monté de manière à pouvoir être déplacé en surmontant la pression d'un ressort (93).
  9. Parachute selon l'une des revendications 4 à 8, caractérisé en ce que la troisième mâchoire de frein en forme de coin (80) est pourvue d'une garniture de frein (84).
EP97903193A 1996-03-01 1997-02-28 Parachute a prise instantanee et machoire de frein, notamment pour cabines d'ascenseur Expired - Lifetime EP0883567B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH53796 1996-03-01
CH537/96 1996-03-01
CH53796 1996-03-01
PCT/CH1997/000075 WO1997031852A1 (fr) 1996-03-01 1997-02-28 Parachute a prise instantanee et machoire de frein, notamment pour cabines d'ascenseur

Publications (2)

Publication Number Publication Date
EP0883567A1 EP0883567A1 (fr) 1998-12-16
EP0883567B1 true EP0883567B1 (fr) 2000-08-16

Family

ID=4189299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97903193A Expired - Lifetime EP0883567B1 (fr) 1996-03-01 1997-02-28 Parachute a prise instantanee et machoire de frein, notamment pour cabines d'ascenseur

Country Status (5)

Country Link
EP (1) EP0883567B1 (fr)
AT (1) ATE195491T1 (fr)
AU (1) AU1763697A (fr)
DE (2) DE19780136D2 (fr)
WO (1) WO1997031852A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091725A1 (it) * 2009-10-08 2011-04-09 Gmv Spa Dispositivo di blocco di sicurezza per cabine di ascensori
WO2016058256A1 (fr) * 2014-10-16 2016-04-21 邹家春 Bride de sécurité en apesanteur
CN105819302A (zh) * 2016-05-31 2016-08-03 石家庄五龙制动器股份有限公司 夹绳器
RU2723006C2 (ru) * 2015-09-23 2020-06-08 Инвенцио Аг Ловитель скользящего действия для лифта

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6256841B1 (en) 1998-12-31 2001-07-10 Otis Elevator Company Wedge clamp type termination for elevator tension member
ES2146167B1 (es) * 1998-05-13 2001-04-01 Orona S Coop Freno de seguridad para una cabina de ascensor.
DE59808283D1 (de) * 1998-07-03 2003-06-12 Cobianchi Liftteile Ag Muensin Bremsfangvorrichtung, insbesondere für Aufzugskabinen
ES1043007Y (es) * 1998-12-02 2000-05-01 Dominguez Luis Fernando Simal Elemento elastico para frenos de sistemas guiados.
ES2154200B1 (es) * 1998-12-22 2001-11-01 Dynatech Dynamics & Technology Sistema de frenado de emergencia para ascensores, de doble efecto, ascendente y descendente.
KR20020074095A (ko) * 2002-08-02 2002-09-28 박임준 제동장치
FR2852587A1 (fr) * 2003-03-20 2004-09-24 Thyssenkrupp Elevator Mfg F Dispositif de deblocage d'un parachute pour cabine d'ascenseur, ainsi que le parachute ainsi equipe
KR100682039B1 (ko) 2005-09-23 2007-02-12 주식회사 세아전기 엘리베이터용 양방향 로프 브레이크
EP2699506B1 (fr) * 2011-04-19 2016-02-10 Otis Elevator Company Frein d'ascenseur doté d'un élément de desserrage du frein
CN107445015B (zh) * 2017-08-24 2023-03-24 佛山市昌宏电梯机械有限公司 一种电梯防下坠、超速、意外移动保护系统
EP3828116A1 (fr) * 2019-11-29 2021-06-02 Inventio AG Frein embarqué pour une installation d'ascenseur et installation d'ascenseur
CN113896072B (zh) * 2021-09-10 2023-02-14 伟龙意程智能科技(江苏)有限公司 一种电梯用锲块型制动元件组成的安全钳
DE202022100179U1 (de) 2022-01-13 2022-01-20 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung
DE202022100182U1 (de) 2022-01-13 2022-01-20 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE486449C (de) * 1929-11-18 Hermann Donandt Dipl Ing Fangvorrichtung fuer Aufzuege o. dgl.
US3249179A (en) * 1965-06-03 1966-05-03 Harsco Corp Safety devices for elevators or the like
US3762512A (en) * 1971-10-29 1973-10-02 Us Elevator Corp Elevator rail grab safety apparatus
EP0161287A1 (fr) * 1983-11-14 1985-11-21 Cobianchi Liftteile Ag Dispositif parachute notamment pour cabines d'ascenseur
ES2043130T5 (es) * 1990-02-06 1999-05-01 Thyssen Aufzuege Gmbh Dispositivo que impide las aceleraciones o movimientos incontrolados de una cabina o portacargas.
GB2252545A (en) * 1991-02-06 1992-08-12 Poon Otto L Bi-directional safety brake for elevator
US5366045A (en) * 1993-09-03 1994-11-22 Eaton Corporation Brake mechanism for a storage and retrieval vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091725A1 (it) * 2009-10-08 2011-04-09 Gmv Spa Dispositivo di blocco di sicurezza per cabine di ascensori
WO2016058256A1 (fr) * 2014-10-16 2016-04-21 邹家春 Bride de sécurité en apesanteur
RU2723006C2 (ru) * 2015-09-23 2020-06-08 Инвенцио Аг Ловитель скользящего действия для лифта
CN105819302A (zh) * 2016-05-31 2016-08-03 石家庄五龙制动器股份有限公司 夹绳器
CN105819302B (zh) * 2016-05-31 2018-06-29 石家庄五龙制动器股份有限公司 夹绳器

Also Published As

Publication number Publication date
ATE195491T1 (de) 2000-09-15
AU1763697A (en) 1997-09-16
EP0883567A1 (fr) 1998-12-16
WO1997031852A1 (fr) 1997-09-04
DE59702206D1 (de) 2000-09-21
DE19780136D2 (de) 2000-01-27

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