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EP1942071B1 - Supports de flottaison pour le calage adéquat d'un appareil de sécurité - Google Patents

Supports de flottaison pour le calage adéquat d'un appareil de sécurité Download PDF

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Publication number
EP1942071B1
EP1942071B1 EP07381001A EP07381001A EP1942071B1 EP 1942071 B1 EP1942071 B1 EP 1942071B1 EP 07381001 A EP07381001 A EP 07381001A EP 07381001 A EP07381001 A EP 07381001A EP 1942071 B1 EP1942071 B1 EP 1942071B1
Authority
EP
European Patent Office
Prior art keywords
safety device
friction wedge
wedge
wedging
friction
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.)
Active
Application number
EP07381001A
Other languages
German (de)
English (en)
Other versions
EP1942071A2 (fr
EP1942071A3 (fr
Inventor
Jose Manuel Sanchez Alvarez
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.)
ThyssenKrupp Elevator Manufacturing Spain SL
Original Assignee
ThyssenKrupp Elevator Manufacturing Spain 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 ThyssenKrupp Elevator Manufacturing Spain SL filed Critical ThyssenKrupp Elevator Manufacturing Spain SL
Priority to EP07381001A priority Critical patent/EP1942071B1/fr
Priority to AT07381001T priority patent/ATE487674T1/de
Priority to DE602007010410T priority patent/DE602007010410D1/de
Priority to ES07381001T priority patent/ES2356265T3/es
Priority to PT07381001T priority patent/PT1942071E/pt
Publication of EP1942071A2 publication Critical patent/EP1942071A2/fr
Publication of EP1942071A3 publication Critical patent/EP1942071A3/fr
Application granted granted Critical
Publication of EP1942071B1 publication Critical patent/EP1942071B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 invention consists of flotation means for the correct wedging of a safety device for lifts specially designed to be situated between the guide and the cabin making best use of space requirements.
  • the flotation means consist mainly of the use of a set of horizontal grooves which enable the correct positioning of the friction wedge laterally displacing the main body of the safety device.
  • the safety device which uses these flotation means comprises a body which is able to absorb completely the forces deriving from the wedging at the moment of detention.
  • This wedging also has seating means specially designed to ensure that the wedge is correctly supported at all times.
  • Safety devices for lifts act in the event of emergency when the lift cabin exceeds the upward or downward pre-established speed.
  • an emergency braking mechanism acts to stop the lift cabin.
  • the invention which is described herein resolves the aforementioned disadvantages associated with floatability of the body of the safety device, without increasing the dimension and the weight thereof due to the need to include the rivet and the supports joined to said rivet, and in this way it is possible to place it at the cabin level thus freeing up space beneath the cabin.
  • a stores crane as the one disclosed inEP0633217 which comprises a load carrier so arranged as to run along guides on a vertical crane mast and a lifting device for the load carrier arranged for displacement of the load carrier along the mast.
  • a fall brake is attached to the load carrier for the purpose, in the event of a fault in the lifting device, of preventing the load carrier from falling downwards through engagement with the guides.
  • a detector device is so arranged as to sense the movement of the load carrier and, in the event of deviation from set values, to actuate the fall brake.
  • the present invention refers to flotation means for the correct wedging of a safety device for lifts specially designed to situate the safety device between the guide and the cabin, making the most of space requirements.
  • the safety device presents a traction element which is blocked when over-acceleration occurs, both in an upward direction and a downward direction of the lift cabin.
  • This lateral displacement produces a compression in one or various elastic elements situated on the opposite side of the guide and a displacement of one or various friction blocks interlocked to the body of the safety device situated on that side against the guide, producing as a result contact of the friction blocks with the guide and therefore the lift cabin is halted.
  • the floatability of the body of the safety device is achieved initially with the presence of horizontal grooves situated in the fastenings of a support plate interlocked to the resistant structure of the cabin to which the body of the safety device is anchored by means of bolts which are designed to absorb the forces of the vertical braking.
  • the main body of the safety device consists of a "C" whose cavity passes through the guide on which the wedging is to be applied.
  • this main body in "C” form there are friction blocks linked through the elastic means and on the other side the friction wedge is located joined to a traction element such as a cable, a rod or similar.
  • the friction wedge moves along an obliquely supported seating and is guided by a grooving which is also oblique according to the seating which has sliding pins.
  • the oblique grooving has two widths so that it is possible to vary the type of seating of the pins interlocked to the wedge depending on the position in which those follower pins are fixed, in the first section narrow, or in the second wide.
  • the narrow section does not allow any play of the pin in the direction transversal to the oblique grooving whereas the wide section does.
  • the means of seating of the friction wedge is modified as the movement in the direction perpendicular to the longitudinal direction of the oblique grooving is not restricted. That is, the friction wedge is not restricted by the oblique grooving ensuring that the support contact with its seating is correct and is not conditioned by the restraints which would be imposed by the pins.
  • the force of the braking with which the wedge acts is regulated by a bolt which sets the distance in the horizontal between the friction wedge and the lift guide.
  • the invention refers to flotation means for the correct wedging of a safety device
  • the safety device has a main body in the form of a "C" the cavity of which passes through the lift guide, with a friction wedge on one side of the guide, and on the other side one or various friction blocks linked by elastic means to the main safety device body designed to absorb the forces of reaction by the support of the friction wedge with the guide for retention by wedging
  • the flotation means are characterised in that they consist of horizontal grooves present in a support plate interlocked to the resistant structure of the cabin to which the main body of the safety device is attached by means of bolts which are designed to absorb the forces of the vertical braking.
  • Figure 1 shows a perspective view of the back of the first example of an embodiment of the invention of the flotation means for a safety device situated on its back wall. The same view shows the axis indicating the direction along which the guide extends.
  • Figure 2 shows a perspective view of the upper front part of the same embodiment of the invention for flotation means for a safety device situated on its back wall where only part of the lift guide is seen in order to note the wedge and the friction blocks.
  • Figure 3 shows a view of the elevation of the same example of an embodiment of the invention of the safety device flotation means where the safety device wedging is shown.
  • the present invention refers to flotation means for the correct wedging of a safety device for lifts
  • the safety device which makes use of said flotation means comprises a body (1) with a traction element (2) joined to a friction wedge (3).
  • the friction wedge is joined to the traction element (2) through attachment to the upper body (1) of the safety device.
  • one or various friction blocks (5) situated in the body of the safety device (1) on the opposite side of the lift guide (4) are displaced towards said guide (4), thus stopping the lift cabin by retention.
  • the friction blocks (5) are linked to elastic means (6) which work under compression which in this preferred example of the embodiment are Belleville washers, so that the safety device body (1) is crushed during the wedging.
  • the guide (4) fits to some extent with the wedge (3) and the friction blocks (5) so that the safety device body (1) does not interfere with said guide (4).
  • Flotation of the safety device body is implemented by means of horizontal grooves (7.1) on the support plate(7) interlocked to the resistant structure of the lift cabin where the safety device body (1) is attached by means of bolts (8) designed to absorb the forces of the vertical braking.
  • the support plate (7) is situated between the wall (1.1) of the safety device body (1) opposed to the guide (4) which hereinafter shall be termed back wall, and the bolts (8) fixed on that wall (1.1) to the safety device body (1.
  • the plate (7) support comprises four bolts (8) located in the respective horizontal grooves (7.1) arranged in twos on top of each other so that with this arrangement the bolts (8) are able to support the forces of the torsion generated during braking.
  • An oblique grooving (1.2) is interlocked to the safety device body (1) with at least one narrow section (1.2.1) and a wide section (1.2.2), through which run two follower pins (3.1) interlocked to the friction wedge (3).
  • the force of the braking associated with the degree of vertical advance of the friction wedge (3) is regulated by means of a lower bolt (3.2) and a safety nut (3.3) which blocks the connection in order to control the permitted advance of the friction wedge (3) when the traction element (2) is blocked.
  • the friction wedge is jointed to the traction element (2) through an attachment in the lower part of the safety device body (1)
  • the friction wedge (3) wedged towards the lower part of the safety device is placed in the body of the safety device (1) in an arrangement symmetrical to the arrangement of the friction wedge (3) in the first example of the preferred embodiment with respect to a horizontal plane, that is, with an oblique plane so that when the lift cabin over-accelerates in an upward direction the traction element (2) is blocked so that the body of the safety device (1) continues to move obliging the friction wedge (3) to displace relatively with respect to the element sliding on the seating comprising a linear needle bearing (9) in an oblique arrangement in order to wedge against the lift cabin guide (4).
  • the friction wedge is joined to the traction element (2) through two attachments situated respectively in the lower and upper parts of the safety device body (1).
  • the friction wedge (3) wedged towards the upper and lower part of the safety device presents two inclined planes antagonistic to two bases comprising two linear needle bearings (9) also arranged obliquely in order to wedge the lift cabin guide (4) when the lift cabin over-accelerates either in an upwards or downwards direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Body Structure For Vehicles (AREA)
  • Crushing And Grinding (AREA)
  • Details Of Aerials (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (12)

  1. Moyens de flottation pour le correct coincement d'un dispositif de sécurité dans lesquels le dispositif de sécurité a un corps principal (1) qui se compose d'une «C» dont la cavité passe à traves du guide d'ascenseur (4), avec un coin de friction (3) sur un côté du guide (4), et sur le côté opposé un ou plusieurs blocs (5) également du type de friction, reliés par moyens élastiques (6) au corps principal (1) du dispositif de sécurité, assignés pour absorber les forces de réaction en supportant le coin de friction (3) sur le guide (4) pour une rétention à traves du coincement dans lequel sont les moyens de flottation, ils comprennent des rainures horizontaux (7.1) présents dans une plaque d'appui (7) enclenchées à la structure résistante de la cabine à la quelle le corps principal (1) du dispositif de sécurité est ancré au moyen de boulons (2) dessinés pour absorber les forces de freinage verticaux, en plus le coin de friction (3) se déplace le long d'une assise oblique de manière à ce qu'il soit possible de modifier les moyens d'assise du coin de friction (3) à mesure qu'il libère le déplacement dans une direction perpendiculaire à la direction longitudinal d'un rainurage oblique (1.2) présent dans le corps principal du dispositif de sécurité (1) et le coin de friction (3) est guidé par au moins deux chevilles d'entrainement (3.1) suivant le rainurage oblique (1.2) et qui sont enclenchées au coin de friction (3), caractérisés en ce que la rainure oblique (1.2) a une première section étroite (1.2.1) et une seconde section large (1.2.2) de manière à que la variation du mode d'assise du coin de friction (3) se produise lorsque, au plus, une des chevilles d'entrainement (3.1) enclenchées au coin de friction (3) continue dans la section étroite (1.2.1) du rainurage oblique (1.2).
  2. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 1, caractérisés en ce que le coin de friction du dispositif de sécurité (3) présente un élément de traction (2) qui se bloque lorsque la cabine du ascenseur suraccélére de manière à que le corps (1) du dispositif de sécurité (1) continue son déplacement en forçant le coin de friction (3) à se déplacer relativement par rapport à ledit corps afin de se coincer contre le guide (4) de la cabine du ascenseur.
  3. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 2, caractérisés en ce que lorsque l'élément de traction (2) est bloqué, une assise comprenant un roulement à aiguilles linéaire (9) disposé obliquement, se coulisse dans le coin de friction (3) afin de réaliser le coincement.
  4. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 1, caractérisés en ce que les blocs de friction (5) sont reliés à moyens élastiques (6) fonctionnant sous compression de manière à qu'ils soient écrasés par le corps du dispositif de sécurité (1) pendant le coincement.
  5. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 1, caractérisés en ce que la plaque d'appui (7) comprend quatre boulons (8) encastrés dans les respectives rainures horizontaux (7.1) disposées deux à deux, certaines d'elles sur les autres, de manière à que, avec cette disposition, les boulons (8) sont capables de supporter les forces de torsion générées pendant le freinage.
  6. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 2, caractérisés en ce que la force de freinage associée au degré d'avance vertical du coin de friction (3) est régulée au moyen d'un boulon inferieur (3.2) et un écrou de sécurité (3.3) bloquant la connexion afin de contrôler l'avance permis par le coin de friction (3) lorsque l'élément de traction (2) est bloqué.
  7. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 4, caractérisés en ce que les éléments élastiques (6) sont rondelles Belleville.
  8. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 1, caractérisés en ce que la variation de l'assise du coin de friction (3) se produise lorsqu'une des chevilles d'entrainement (3.1) enclenchées au coin de friction (3) continue dans la section étroite (1.2.2) du rainurage oblique (1.2).
  9. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 1, caractérisés en ce que la variation de l'assise du coin de friction (3) se produise lorsqu'aucune des chevilles d'entrainement (3.1) enclenchées au coin de friction (3) ne continue pas dans la section étroite (1.2.2) du rainurage oblique (1.2).
  10. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 3, caractérisés en ce que le coin de friction (3) est coincé vers la partie supérieure du dispositif de sécurité qui présente un plan incliné antagoniste d'une assise comprenant un roulement à aiguilles linéaire (9) également disposé obliquement afin de se coincer sur le guide de la cabine du ascenseur (4) lorsque la cabine du ascenseur suraccélére dans la direction ver le bas.
  11. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 3, caractérisés en ce que le coin de friction (3) est coincé vers la partie inferieure du dispositif de sécurité qui présente un plan incliné antagoniste d'une assise comprenant un roulement à aiguilles linéaire (9) également disposé obliquement afin de se coincer sur le guide (4) de la cabine du ascenseur lorsqu'il existe une suraccélération de la cabine du ascenseur dans la direction vers le haut.
  12. Moyens de flottation pour le correct coincement d'un dispositif de sécurité pour ascenseurs selon la revendication 3, caractérisés en ce que le coin de friction (3) est coincé vers la partie supérieure et inferieure du dispositif de sécurité qui présente deux plans inclinés antagonistes de deux assises comprenant deux roulements à aiguilles linéaires (9) qui sont également obliques afin de se coincer sur le guide (4) de la cabine du ascenseur lorsqu'il existe une suraccélération de la cabine du ascenseur dans tous les deux directions vers le haut et ver le bas.
EP07381001A 2007-01-08 2007-01-08 Supports de flottaison pour le calage adéquat d'un appareil de sécurité Active EP1942071B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07381001A EP1942071B1 (fr) 2007-01-08 2007-01-08 Supports de flottaison pour le calage adéquat d'un appareil de sécurité
AT07381001T ATE487674T1 (de) 2007-01-08 2007-01-08 Flotationsvorrichtung zur korrekten festklemmung einer lebensschutzvorrichtung
DE602007010410T DE602007010410D1 (de) 2007-01-08 2007-01-08 Flotationsvorrichtung zur korrekten Festklemmung einer Lebensschutzvorrichtung
ES07381001T ES2356265T3 (es) 2007-01-08 2007-01-08 Medios de flotación para el correcto acuñamiento de un dispositivo de seguridad.
PT07381001T PT1942071E (pt) 2007-01-08 2007-01-08 Meios de flutuação para o aperto adequado de um dispositivo de segurança

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07381001A EP1942071B1 (fr) 2007-01-08 2007-01-08 Supports de flottaison pour le calage adéquat d'un appareil de sécurité

Publications (3)

Publication Number Publication Date
EP1942071A2 EP1942071A2 (fr) 2008-07-09
EP1942071A3 EP1942071A3 (fr) 2008-11-05
EP1942071B1 true EP1942071B1 (fr) 2010-11-10

Family

ID=39415065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07381001A Active EP1942071B1 (fr) 2007-01-08 2007-01-08 Supports de flottaison pour le calage adéquat d'un appareil de sécurité

Country Status (5)

Country Link
EP (1) EP1942071B1 (fr)
AT (1) ATE487674T1 (fr)
DE (1) DE602007010410D1 (fr)
ES (1) ES2356265T3 (fr)
PT (1) PT1942071E (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103492302A (zh) * 2011-04-19 2014-01-01 奥的斯电梯公司 具有制动器释放特征的电梯制动器
DE102012106056A1 (de) 2012-07-05 2014-01-09 Rg Mechatronics Gmbh Regelvorrichtung zum Regeln der Beschleunigung einer in vertikaler Richtung bewegten Transporteinrichtung
US11235949B2 (en) 2017-07-21 2022-02-01 Otis Elevator Company Safety device, elevator safety system and elevator system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111646337B (zh) * 2020-05-26 2024-03-12 上海乐天电梯部件有限公司 一种可浮动式电梯安全钳
CN113479738B (zh) * 2021-07-26 2022-10-04 日立电梯（中国）有限公司 一种自适应相对恒定制动力装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB496536A (en) * 1937-07-02 1938-12-01 Waygood Otis Ltd Improvements in and relating to safety apparatus for elevators
FR2702464B1 (fr) 1993-03-10 1995-06-30 Otis Elevator Co Parachute de cabine d'ascenseur a reglage instantane et a autocentrage.
SE9302047L (sv) * 1993-06-14 1994-12-15 Bt Systems Ab Lagerkran
DE59808283D1 (de) * 1998-07-03 2003-06-12 Cobianchi Liftteile Ag Muensin Bremsfangvorrichtung, insbesondere für Aufzugskabinen
EP1568643B1 (fr) * 2002-12-04 2011-09-14 Mitsubishi Denki Kabushiki Kaisha Systeme de freinage pour ascenseur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103492302A (zh) * 2011-04-19 2014-01-01 奥的斯电梯公司 具有制动器释放特征的电梯制动器
CN103492302B (zh) * 2011-04-19 2018-02-13 奥的斯电梯公司 具有制动器释放特征的电梯制动器
DE102012106056A1 (de) 2012-07-05 2014-01-09 Rg Mechatronics Gmbh Regelvorrichtung zum Regeln der Beschleunigung einer in vertikaler Richtung bewegten Transporteinrichtung
WO2014005833A1 (fr) 2012-07-05 2014-01-09 Rg Mechatronics Gmbh Dispositif de régulation pour réguler l'accélération d'un dispositif de transport déplacé verticalement
US11235949B2 (en) 2017-07-21 2022-02-01 Otis Elevator Company Safety device, elevator safety system and elevator system

Also Published As

Publication number Publication date
ES2356265T3 (es) 2011-04-06
DE602007010410D1 (de) 2010-12-23
EP1942071A2 (fr) 2008-07-09
PT1942071E (pt) 2011-02-17
ATE487674T1 (de) 2010-11-15
EP1942071A3 (fr) 2008-11-05

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