EP0129678B1 - Dispositif automatique pour ascenseurs ou monte-charges sans puits de sécurité - Google Patents

Dispositif automatique pour ascenseurs ou monte-charges sans puits de sécurité Download PDF

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Publication number
EP0129678B1
EP0129678B1 EP84105072A EP84105072A EP0129678B1 EP 0129678 B1 EP0129678 B1 EP 0129678B1 EP 84105072 A EP84105072 A EP 84105072A EP 84105072 A EP84105072 A EP 84105072A EP 0129678 B1 EP0129678 B1 EP 0129678B1
Authority
EP
European Patent Office
Prior art keywords
bar
door
lift
lever
cage
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
Application number
EP84105072A
Other languages
German (de)
English (en)
Other versions
EP0129678A1 (fr
Inventor
Angelo Martini
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.)
GMV Service SRL
Original Assignee
GMV Service SRL
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 GMV Service SRL filed Critical GMV Service SRL
Priority to AT84105072T priority Critical patent/ATE28846T1/de
Publication of EP0129678A1 publication Critical patent/EP0129678A1/fr
Application granted granted Critical
Publication of EP0129678B1 publication Critical patent/EP0129678B1/fr
Expired 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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/34—Safe lift clips; Keps

Definitions

  • This new invention concerns an automatic blocking device for lifts or goods-lifts without safety lift-shafts.
  • lift or goods-lifts plants must have a safety lift-shaft, under the lowest floor.
  • This lift-shaft which has normally a safety hole with a height of at least 50 cm, is made to protect the operator, even in a lying position during a maintenance work, in case of a sudden fall of the cabin from a wrong manoeuvre or for a faulty part of the safety system.
  • GB-A-174,235 discloses an automatic blocking device in a lift shaft comprising at least a bar pivotally mounted at its base on a fixed part of the lift shaft and projecting upwardly and extending into the space beneath the cage, a lever hinged to the bar and provided with driving means fixed to the lift shaft for moving the bar into its first position projecting into the space beneath the cage and for maintaining that position and a retracting means for withdrawing the bar into its second position clear of the space beneath the cage.
  • the movement of the bar can be produced by means of an electric releasing device from the cage.
  • the above described known safety device is not suitable to be used for the creation of a safety hole in the apparatus for lifts or goods-lifts, without safety measures, when the door of the cabin is opened and the cage is positioned at a floor higher than the lowest floor.
  • the automatic blocking device in a lift shaft or goods-lift shaft having a door for access to the lowest floor, comprises: a bar, having the fulcrum attached to the base of a guide beam, projecting upwardly and extending into the space beneath the cage, and locking means for locking said bar in a position clear of space beneath the cage against the guide beam in an approximately vertical position during the normal movement of the cage; said locking means being interacting between the door and a lever, hinged to the bar, in such a manner that the bar is moved into a position projecting into the space beneath the cage when the door is opened and the cage is positioned at a floor higher than the lowest floor.
  • the means of maintaining the bar against the guide of the frame-work, in approximately vertical position, is by hooking action provided by the device when the door is opened.
  • the bar When the cabin gets to a floor and the door is opened the bar remains tied to the guide by the action of the same cabin.
  • the bar In the revise action without the cabin, the bar is unhooked when the door is opened, like this it lowers from the vertical position creating a support of at least 50 cm high on which the cabin gets to, by a wrong manoeuvre or by a faulty part of the safety system, gets to a stop.
  • the frame work of a lift is illustrated in the figures, which is indicated by the main guider and a cabin B which with a traditional mechanism (not shown here) can descend to the lowest floor C, like this door A can be opened. These are the conditions of the normal working of the blocking device. During maintenance, the door A is opened with a safety key, while the cabin B is found at a floor higher than the lowest floor C. It is important to protect the operator who is working under the cabin not to be crushed by the returning of the cabin which may be caused by anything.
  • a device which blocks and supports cabin B which is the subject matter of the present invention.
  • the said device of block and support comprises of a bar 1 hinged at the base of beam 2 and is capable of opening by itself to a certain angle, like this, forming a block and a support of the cabin which arrives.
  • the said lever 6 is provided with a stopslit 5 in which the head of a bolt 4 can be inserted.
  • bar 1 gets tied to beam 2 (see fig. 2) and the cabin B is free to slide. If cabin B is not on the same level with a floor of a building, bar 1 is being puhed by spring 7 through the lever 6 and it is liberated from bolt 4 (followed by the opening of. the door) which becomes automatically opened or inclined, forming a block and a support for cabin B as indicated in figure 1.
  • bar 1 which is liberated from bolt 4 as a result of the opening of the door, becomes blocked from opening or inclining for the presence of the same cabin. It is better that bar 1 has rollers 10 at the free extreme, so that the rollers will slide along guide 3 of cabin B and maintaining the said bar tied to beam 2, even when bolt 4 is unhooked from the opening of the door A. Closing of door A makes bolt 4 to insert in slit 5, and thereby blocking rafter 1. After the maintenance operation, the operator closes again door A, then recalls bar 1 in a tied position to beam 2 with any gadget or by hand through an entry hole 8.

Landscapes

  • Forklifts And Lifting Vehicles (AREA)
  • Wing Frames And Configurations (AREA)
  • Vehicle Body Suspensions (AREA)
  • Elevator Door Apparatuses (AREA)
  • Types And Forms Of Lifts (AREA)
  • Vending Machines For Individual Products (AREA)
  • Seats For Vehicles (AREA)
  • Gates (AREA)

Claims (5)

1. Un dispositif automatique de calage dans une cage d'ascenseur ou dans une cage de monte-charge sans un moyen de sécurité de butoir au-dessous de l'étage le plus bas (C) comprenant une barre (1) montée sur pivot à base sur une partie fixe de la cage de l'ascenseur et qui avance vers le haut en se prolongeant dans l'espace au-dessous de la cage (B), un levier (6) monté sur une charnière avec la barre et fourni d'un moyen de commande (7) fixé à la cage de l'ascenseur pour déplacer la barre à sa première position, avançant dans l'espace au-dessous de la cage (B) et pour maintenir cette position-là et un moyen de rétraction (8) pour retirer la barre vers sa deuxième position à l'écart de l'espace au-dessous de la cage caracterisé du fait que la cage comprend une porte (A) pour l'accès au plus bas étage (C), le point d'appui de la barre est attaché à la base d'une poutre de guide (2), dispositifs de blocage (4, 5, 6) sont fournis pour bloquer ladite barre (1) dans sa deuxième position contre la poutre de guide (2) dans une position approximativement verticale pendant le mouvement normal de la cage (B) et caracterisé par le fait que lesdits dispositifs de blocage agissent entre la porte et le levier (6) de telle façon que la barre se déplace vers sa première position lors de l'ouverture de la porte et quand la cage se trouve à un étage supérieur au plus bas.
2. Un dispositif automatique de calage selon la revendication no. 1, où le levier (6) est fourni d'une fente (5) et d'un ressort à butée (7) fixé à une poutre de l'ascenseur ou du monte-charge qui agit sur ledit levier.
3. Un dispositif automatique de calage selon les revendications nos. 1 ou 2, où le moyen de blocage comprend un boulon (4) et un ressort (9) fixés à une extrémité du boulon et qui agissent lors de l'ouverture de la porte (A), afin que, quand la porte est fermée, le boulon (4) soit poussé dans la fente (5) dans le levier (6).
4. Dispositif automatique de calage selon une revendication précédente quelconque, où la barre (1) est fournie, à l'extrémité libre, de rouleaux (10).
5. Un dispositif automatique de calage selon une revendication précédente quelconque, où un trou d'accès (8) est fourni pour bloquer la barre (1) dans sa deuxième position contre la poutre de guide (2) dans une position approximativement verticale, à la suite de l'opération de maintien.
EP84105072A 1983-05-25 1984-05-05 Dispositif automatique pour ascenseurs ou monte-charges sans puits de sécurité Expired EP0129678B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84105072T ATE28846T1 (de) 1983-05-25 1984-05-05 Automatische einrichtung fuer aufzug oder lastenaufzug ohne sicherheitsschacht.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2129983 1983-05-25
IT21299/83A IT1203821B (it) 1983-05-25 1983-05-25 Dispositivo automatico per creare un vano di sicurezza in apparati per ascensore o montacarichi privi di buca

Publications (2)

Publication Number Publication Date
EP0129678A1 EP0129678A1 (fr) 1985-01-02
EP0129678B1 true EP0129678B1 (fr) 1987-08-12

Family

ID=11179730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105072A Expired EP0129678B1 (fr) 1983-05-25 1984-05-05 Dispositif automatique pour ascenseurs ou monte-charges sans puits de sécurité

Country Status (5)

Country Link
EP (1) EP0129678B1 (fr)
AT (1) ATE28846T1 (fr)
DE (1) DE3465286D1 (fr)
ES (1) ES8505612A1 (fr)
IT (1) IT1203821B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736242B2 (en) 2000-11-02 2004-05-18 Alimak Ab Safety arrangement for a hoist

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2118286C1 (ru) * 1997-08-27 1998-08-27 Научно-производственная фирма "Лифтмонтаж" в виде товарищества с ограниченной ответственностью Концевое предохранительное устройство для кабины лифта
DK0922663T3 (da) * 1997-11-08 2000-10-23 Thyssen Aufzugswerke Gmbh Elevator, især drivskiveelevator
ATE299835T1 (de) * 1999-12-20 2005-08-15 Mitsubishi Elevator Europ B V Schachtsicherheitssystem für aufzug
FI112640B (fi) * 2000-12-22 2003-12-31 Kone Corp Hissin turvalaite
JP2005178997A (ja) * 2003-12-19 2005-07-07 Otis Elevator Co 乗りかごの落下防止装置
ITVE20040047A1 (it) * 2004-11-17 2005-02-17 O Me R Spa Pedana elevatrice per autoveicoli e materiali ed impianto di movimentazione.
GB2476704A (en) * 2010-10-29 2011-07-06 Elevator Equipment Ltd An elevator safety system
CN104291179A (zh) * 2014-10-24 2015-01-21 森赫电梯股份有限公司 一种电梯机械阻止装置
US10501287B2 (en) 2014-12-17 2019-12-10 Inventio Ag Damper unit for an elevator
CN113353752A (zh) * 2021-05-19 2021-09-07 重庆市华创电梯部件有限公司 一种防止电梯轿厢意外移动的装置
GB2637059B (en) * 2024-09-17 2026-04-15 Advanced Handling Ltd A support device for a lift system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE24853C (de) * A. STAUSS in Donnersmarckhütte bei Zabrze O. Schi Aufsatz vorrichtung für Fördergestelle
GB174235A (en) * 1920-11-05 1922-01-26 Carl Heller Safety device for cages for mines
US1392962A (en) * 1921-02-21 1921-10-11 John M Murphy Support for elevator-cars
US2503954A (en) * 1946-12-31 1950-04-11 Asea Ab Arrangement in mining elevators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736242B2 (en) 2000-11-02 2004-05-18 Alimak Ab Safety arrangement for a hoist

Also Published As

Publication number Publication date
IT8321299A0 (it) 1983-05-25
ES532744A0 (es) 1985-06-16
EP0129678A1 (fr) 1985-01-02
IT1203821B (it) 1989-02-23
ES8505612A1 (es) 1985-06-16
DE3465286D1 (en) 1987-09-17
ATE28846T1 (de) 1987-08-15

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