EP4043379A1 - Système électromécanique d'activation de parachutes pour dispositifs d'élévation - Google Patents

Système électromécanique d'activation de parachutes pour dispositifs d'élévation Download PDF

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Publication number
EP4043379A1
EP4043379A1 EP22382120.8A EP22382120A EP4043379A1 EP 4043379 A1 EP4043379 A1 EP 4043379A1 EP 22382120 A EP22382120 A EP 22382120A EP 4043379 A1 EP4043379 A1 EP 4043379A1
Authority
EP
European Patent Office
Prior art keywords
trigger
plate
electromagnet
guide
activation
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.)
Granted
Application number
EP22382120.8A
Other languages
German (de)
English (en)
Other versions
EP4043379B1 (fr
Inventor
Raúl ALONSO RÁMILA
Oier García Zalacain
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.)
Orona S Coop
Original Assignee
Orona S Coop
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Filing date
Publication date
Application filed by Orona S Coop filed Critical Orona S Coop
Publication of EP4043379A1 publication Critical patent/EP4043379A1/fr
Application granted granted Critical
Publication of EP4043379B1 publication Critical patent/EP4043379B1/fr
Active 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
    • 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
    • B66B5/20—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 rotatable eccentrically-mounted members

Definitions

  • the present invention belongs to the technical field of elevator safety. More specifically, the invention relates to an activation system for electronically activated parachutes.
  • parachute activation has been carried out by means of a speed limiting element of a mechanical type which, in the event of excess speed of the car, is blocked and causes said activation.
  • the object of the invention consists of a system for activating the parachute of elevating devices being electromechanically actuated and involving lower energy consumption, since it can be maintained in a stand-by or holding condition in which the electromagnet consumption is zero.
  • the parachute is attached to a car or counterweight and is located in proximity to an elevator guide. On one side of the guide there is a shoe, while on the other side there is a braking system that includes a braking element such as a roller or shoe, the function of which is to wedge itself into the shoe, trapping in this movement of wedging to the guide located between the braking element and another shoe and thereby securing the car or counterweight against the guide.
  • the activation system is provided with a roller activation plate and an electromagnet to activate and deactivate the system. Unlike the state of the art, the electromagnet does not act on the activation plate directly, but on a trigger associated with the activation plate.
  • the operation of the device is based on the displacement of the activation plate to produce the movement of the roller and therefore the wedging.
  • the electromagnet When the elevator is operating normally, with the car moving along the guides, the electromagnet is powered, acting on the trigger and causing the activation plate to stay away from the guide and therefore also the roller.
  • the electromagnet when the system is activated, the electromagnet is deactivated, the trigger releases the plate by the action of a spring and the plate moves towards the guide by means of its activation spring (element known from the state of the art ) causing the roller to approach it and the so-called wedging occurs.
  • a cam whose movement is synchronized with the trigger, there is also a stand-by position in which the trigger pivots, but does not completely release the plate.
  • the braking system comprises two rollers joined by a connecting plate.
  • the activation plate does not act directly on the parachute roller, but it does so through another roller and a plate connecting both rollers.
  • the connecting plate between rollers is in turn connected to a synchronization mechanism between parachutes.
  • the activation system described is designed to carry out an emergency braking of a car or counterweight that can be moved longitudinally along at least one vertical guide (1), securing it on said guide (1) to avoid uncontrolled movements or falls due to the action of gravity.
  • the invention comprises:
  • the activation plate 2 moves with respect to the guide 1. In some implementations it does so in a pivotal manner around an articulation perpendicular to the plane of the figure at a first end. In other implementations, this displacement can be linear ( Figure 5 ). At one end the plate 2 comprises a protruding element, for example a shaft 4 that cooperates with the trigger 5. The trigger 5 in turn is provided with the first spring 6. When the elevating device moves normally along the guide 1, the electromagnet 8 remains powered and in this way the braking system is at rest.
  • the electromagnet exerts a force such that, despite the force of the spring 6, it allows the trigger 5 to be held in a position that holds the activation plate 2 through the shaft 4, separating it from the guide and therefore also separating the roller 8.
  • the braking system is therefore inactive.
  • Figures 2a-2c illustrate an operating sequence of the device described above.
  • the braking system is in the rest position, with the car moving normally along the guide 1 and the electromagnet 8 being powered.
  • the electromagnet is deactivated and the trigger 5, as a consequence, pivots by the action of the spring 6 as seen in figure 2b .
  • the cam 7 impacts with its end on the guide 1 but is kept horizontal by means of the action of another spring 9.
  • the braking system is in the "stand-by" or holding position, wherein the haft 4 is not fully released.
  • Trigger reset occurs easily when electromagnet 8 is powered again after wedging has occurred.
  • the parachute 10 is in another position.
  • the activation plate 2 is in contact with a roller 3' attached to the parachute roller 3 through a connecting plate 11.
  • the operation of the trigger and the cam are the same as in the previous implementation.
  • the connecting plate between rollers 11 is adapted to be connected to a synchronization mechanism between parachutes ( Figure 4 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
EP22382120.8A 2021-02-16 2022-02-15 Système électromécanique d'activation de parachutes pour dispositifs d'élévation Active EP4043379B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES202130121A ES2921363B2 (es) 2021-02-16 2021-02-16 Sistema de activación electromecánico para paracaídas de aparatos elevadores

Publications (2)

Publication Number Publication Date
EP4043379A1 true EP4043379A1 (fr) 2022-08-17
EP4043379B1 EP4043379B1 (fr) 2023-03-15

Family

ID=80682606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22382120.8A Active EP4043379B1 (fr) 2021-02-16 2022-02-15 Système électromécanique d'activation de parachutes pour dispositifs d'élévation

Country Status (2)

Country Link
EP (1) EP4043379B1 (fr)
ES (2) ES2921363B2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023134982A1 (fr) * 2022-01-13 2023-07-20 Wittur Holding Gmbh Unité de déclenchement destinée à actionner un dispositif de freinage d'ascenseur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1902993A1 (fr) 2006-09-19 2008-03-26 Wittur AG Mécanisme de retour automatique pour un dispositif de freinage de type ABS
US20110226560A1 (en) * 2010-03-18 2011-09-22 Josef Husmann Elevator braking equipment
DE102013111385A1 (de) * 2013-10-15 2015-04-16 Manfred Lienemann Auslösevorrichtung einer Fangvorrichtung für eine Aufzugskabine einer Aufzugsanlage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62275987A (ja) * 1986-05-20 1987-11-30 大成建設株式会社 エレベ−タ装置
EP3044154B1 (fr) * 2013-09-11 2018-10-31 Otis Elevator Company Dispositif de freinage servant à freiner un objet hissé par rapport à un élément de guidage
WO2015058663A1 (fr) * 2013-10-22 2015-04-30 邹家春 Appareil de serrage de rail d'ascenseur
US20220250872A1 (en) * 2019-08-29 2022-08-11 Dynatech, Dynamics & Technology, S.L. Electromechanical activation of a unidirectional emergency stop device for a lift

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1902993A1 (fr) 2006-09-19 2008-03-26 Wittur AG Mécanisme de retour automatique pour un dispositif de freinage de type ABS
US20110226560A1 (en) * 2010-03-18 2011-09-22 Josef Husmann Elevator braking equipment
DE102013111385A1 (de) * 2013-10-15 2015-04-16 Manfred Lienemann Auslösevorrichtung einer Fangvorrichtung für eine Aufzugskabine einer Aufzugsanlage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023134982A1 (fr) * 2022-01-13 2023-07-20 Wittur Holding Gmbh Unité de déclenchement destinée à actionner un dispositif de freinage d'ascenseur

Also Published As

Publication number Publication date
ES2944833T3 (es) 2023-06-26
EP4043379B1 (fr) 2023-03-15
ES2921363A1 (es) 2022-08-24
ES2921363B2 (es) 2023-04-14

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