EP2020397A1 - Apparatus and system for detecting elevator car overspeed - Google Patents

Apparatus and system for detecting elevator car overspeed Download PDF

Info

Publication number
EP2020397A1
EP2020397A1 EP07380228A EP07380228A EP2020397A1 EP 2020397 A1 EP2020397 A1 EP 2020397A1 EP 07380228 A EP07380228 A EP 07380228A EP 07380228 A EP07380228 A EP 07380228A EP 2020397 A1 EP2020397 A1 EP 2020397A1
Authority
EP
European Patent Office
Prior art keywords
auxiliary wheel
rail
actuating
wheel
elevator component
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
EP07380228A
Other languages
German (de)
French (fr)
Other versions
EP2020397B1 (en
Inventor
José Manuel c/o Thyssenkrupp 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 ES07380228T priority Critical patent/ES2348101T3/en
Priority to EP20070380228 priority patent/EP2020397B1/en
Priority to DE200760007319 priority patent/DE602007007319D1/en
Publication of EP2020397A1 publication Critical patent/EP2020397A1/en
Application granted granted Critical
Publication of EP2020397B1 publication Critical patent/EP2020397B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type

Definitions

  • the invention consists of an apparatus and a system for detecting overspeed of a car, and/or a counterweight, for elevators, for actuating the emergency braking mechanism.
  • Document ES 2 184 612 describes a speed limiting system for elevators, characterized in that it consists of a safety gear fixed to the elevator car and a moving part acting with the rail of the elevator; a crown wheel rotating with the rail of the elevator associated to a centrifugal speed governor; a link quadrangle in which the two opposite sides are joined to the moving part of the safety gear and to the crown wheel respectively; means tending to keep the safety gear in stand-by and means for keeping the crown wheel in contact with the rail of the elevator.
  • Document EP 475 114 describes a safety device and a centrifugal force speed governor for preventing overspeed conditions of an elevator car in both the downward direction and the upward direction.
  • a bracket arranged in the elevator car incorporates a shaft at right angle to a guide rail arranged on the side wall.
  • a telescopic compression spring extends over the shaft between the bracket and the frame to tense the shaft with an axial movement towards the side wall.
  • the running wheel is biased against the web of the guide rails.
  • Each side of the running wheel has a pair of release levers acting on a locking wheel in the event of danger.
  • the release lever rotatably arranged on the running wheel there circulates, in normal car travel, each side of the running wheel around the stopped locking wheel, which is fixedly joined to a two-arm actuating lever.
  • the movement of the actuating lever is transmitted on one hand to the release arm and on the other to the actuating bar, which is additionally in contact with the release arm that is opposite to the safety gear.
  • the release arm circulating parallel to the guide rails is introduced in the wedge box of the safety gear.
  • the elevator car is restarted after a safety stop in the opposite direction of travel.
  • the present invention proposes an apparatus and a system that is independent of the safety gear system, that allows different types of actuations, is adaptable both to the upper part and to the lower part of the car and of the counterweight and does not necessarily have to be arranged close to the counterweight.
  • the invention describes an apparatus for detecting the overspeed of elevator components selected from a car, a counterweight and combinations thereof, having:
  • the speed detecting means comprise a ratchet mechanism comprising:
  • the apparatus may further comprise:
  • This pressure setting of the auxiliary wheel on the rail determines the generated friction force and the coefficient of friction between them.
  • the apparatus can also comprise slip monitoring means formed by an encoder configured to control when the auxiliary wheel slips by comparing a rotation speed of the auxiliary wheel with a travel speed of the elevator component.
  • the apparatus may further comprise at least one roller configured to roll on a second surface of the rail opposite to the first surface of the rail for:
  • This roller can also be used for the operation of the apparatus with different rail thicknesses and for the operation with a rail having a different surface condition, such as a dry rail or a greased wheel.
  • the apparatus further comprises remote actuating means to voluntarily engage the ratchet mechanism.
  • the invention describes a system for detecting overspeed of elevator components selected from a car, a counterweight and combinations thereof, characterized in that it comprises at least one apparatus such as the one described above and transmission means joined to the actuating means for transmitting an actuating movement to the braking mechanism of the elevator component.
  • the system can incorporate the apparatus in an upper or lower part of the car or counterweight, the transmission means comprising in a first case an actuating assembly and first pinion and a second pinion, and the transmission means comprising in a second case a plurality of levers.
  • the invention relates to an apparatus for detecting overspeed of elevator components selected from a car, a counterweight and combinations thereof, having:
  • the speed detecting means are configured to not generate the synchronized alternating movement when a predetermined speed of the elevator component is exceeded and to thus activate the actuating (300) means;
  • the speed detecting means comprise a ratchet mechanism comprising:
  • the apparatus further comprises:
  • the apparatus further comprises slip monitoring means formed by an encoder (500) configured to control when the auxiliary wheel (100) slips by comparing a rotation speed of the auxiliary wheel (100) with a travel speed of the elevator component.
  • slip monitoring means formed by an encoder (500) configured to control when the auxiliary wheel (100) slips by comparing a rotation speed of the auxiliary wheel (100) with a travel speed of the elevator component.
  • the apparatus further comprises at least one roller (600) configured to roll on a second surface (220) of the rail (200) opposite to the first surface (210) of the rail (200) for:
  • the apparatus further comprises a remote actuating means or coil (800) for voluntarily engaging the ratchet (150).
  • Another embodiment of the invention relates to a system for detecting overspeed of an elevator component characterized in that it comprises at least one apparatus such as the one described above and transmission means joined to the actuating means (300) for transmitting an actuating movement to the braking mechanism of the elevator component.

Abstract

The invention relates to an apparatus and system for detecting overspeed of elevator components such as a car or a counterweight having: a wheel, with an auxiliary surface or auxiliary wheel (100), configured to run on a first surface (210) of a travel rail (200) of the elevator component; an actuating device for actuating a braking mechanism of the elevator component; a speed detection device for generating a synchronized alternating movement with the speed of the elevator component; the speed detection device being configured to not generate the synchronized alternating movement when a predetermined speed of the elevator component is exceeded and to thus activate the actuating device (300). In the system of the invention, the apparatus can be arranged in an upper or lower part of the elevator component. In the first case, the transmission device has a plurality of levers (910); in the second case, it has pinions (920) and chains.

Description

    Field of the Invention
  • The invention consists of an apparatus and a system for detecting overspeed of a car, and/or a counterweight, for elevators, for actuating the emergency braking mechanism.
    • Background of the Invention
  • Different implementations are known in the state of the art for detecting elevator car overspeed.
  • Document ES 2 184 612 describes a speed limiting system for elevators, characterized in that it consists of a safety gear fixed to the elevator car and a moving part acting with the rail of the elevator; a crown wheel rotating with the rail of the elevator associated to a centrifugal speed governor; a link quadrangle in which the two opposite sides are joined to the moving part of the safety gear and to the crown wheel respectively; means tending to keep the safety gear in stand-by and means for keeping the crown wheel in contact with the rail of the elevator.
  • Document EP 475 114 describes a safety device and a centrifugal force speed governor for preventing overspeed conditions of an elevator car in both the downward direction and the upward direction. A bracket arranged in the elevator car incorporates a shaft at right angle to a guide rail arranged on the side wall. There is a U-shaped frame having a running wheel at the ends of the shaft of the sides of the wall. A telescopic compression spring extends over the shaft between the bracket and the frame to tense the shaft with an axial movement towards the side wall. As a result the running wheel is biased against the web of the guide rails. Each side of the running wheel has a pair of release levers acting on a locking wheel in the event of danger. In the release lever rotatably arranged on the running wheel there circulates, in normal car travel, each side of the running wheel around the stopped locking wheel, which is fixedly joined to a two-arm actuating lever. The movement of the actuating lever is transmitted on one hand to the release arm and on the other to the actuating bar, which is additionally in contact with the release arm that is opposite to the safety gear. The release arm circulating parallel to the guide rails is introduced in the wedge box of the safety gear. For resetting the safety device, the elevator car is restarted after a safety stop in the opposite direction of travel.
    • Description of the Invention
  • The present invention proposes an apparatus and a system that is independent of the safety gear system, that allows different types of actuations, is adaptable both to the upper part and to the lower part of the car and of the counterweight and does not necessarily have to be arranged close to the counterweight.
  • According to a first aspect, the invention describes an apparatus for detecting the overspeed of elevator components selected from a car, a counterweight and combinations thereof, having:
    • a wheel, with an auxiliary surface configured to run on a first surface of a travel rail of the elevator component;
    • actuating means for actuating a braking mechanism of the elevator component characterized in that it comprises:
    • speed detecting means for generating a synchronized alternating movement with the speed of the elevator component;
    • the speed detecting means being configured to not generate the synchronized alternating movement when a predetermined speed of the car or the counterweight is exceeded and to thus activate the actuating means.
  • The speed detecting means comprise a ratchet mechanism comprising:
    • a polygonal-shaped cam in a side of the wheel, integral with said wheel;
    • a ratchet wheel in the same side of the wheel and also integral with said wheel, said ratchet wheel comprising a plurality of projections;
    • a rocker having a first end and a second end, provided with:
      • a follower at the first end for following the cam profile;
      • a ratchet at the second end for locking the ratchet wheel, thus locking the entire wheel.
  • Additionally, the apparatus may further comprise:
    1. 1) Positioning means formed by lock washers for pushing the auxiliary surface of the wheel against the rail and attempting to prevent the sliding of the wheel on the rail;
    2. 2) means of detecting the derailment and the variation in the pressure setting of the auxiliary surface of the wheel on the rail.
  • This pressure setting of the auxiliary wheel on the rail determines the generated friction force and the coefficient of friction between them.
  • The apparatus can also comprise slip monitoring means formed by an encoder configured to control when the auxiliary wheel slips by comparing a rotation speed of the auxiliary wheel with a travel speed of the elevator component.
  • Likewise, the apparatus may further comprise at least one roller configured to roll on a second surface of the rail opposite to the first surface of the rail for:
    • Offsetting a stress exerted by the auxiliary wheel on the rail for preventing transmission of a reaction force on the elevator component;
    • Setting a pressure between the auxiliary wheel and the rail.
  • This roller can also be used for the operation of the apparatus with different rail thicknesses and for the operation with a rail having a different surface condition, such as a dry rail or a greased wheel.
  • In addition, the apparatus further comprises remote actuating means to voluntarily engage the ratchet mechanism.
  • According to a second aspect, the invention describes a system for detecting overspeed of elevator components selected from a car, a counterweight and combinations thereof, characterized in that it comprises at least one apparatus such as the one described above and transmission means joined to the actuating means for transmitting an actuating movement to the braking mechanism of the elevator component.
  • The system can incorporate the apparatus in an upper or lower part of the car or counterweight, the transmission means comprising in a first case an actuating assembly and first pinion and a second pinion, and the transmission means comprising in a second case a plurality of levers.
    • Brief Description of the Drawings
  • A series of drawings is described below which aid in better understanding the invention and which are expressly related to an embodiment of said invention presented as a non-limiting example thereof.
    • Figure 1 is a sectional plan view showing the apparatus of the invention and its arrangement as regards a rail of an elevator. Said Figure shows the wheel (100), the polygonal cam (110), the ratchet wheel (120), the lock washers (400), the rail (200), the roller (600) and the position of the encoder (500), which is located inside the apparatus.
    • Figure 2 shows a perspective view of the wheel, where the auxiliary surface of the wheel or auxiliary wheel (100), the polygonal cam (110) and the ratchet wheel (120) can be seen.
    • Figure 3 shows a perspective view of some components of the ratchet mechanism, such as the rocker (130), the follower (140), the ratchet (150) and the actuation of the braking system (300).
    • Figures 4A and 4B show two front and rear elevational views, respectively, where the rollers (600), the lock washers (400), the auxiliary wheel (100), the follower (140), the rocker (130), the position of the rail (200), the actuation (300), the coil (800) and the contacts (700) can be seen, said contacts being in charge of detecting the derailment and the variation in the pressure setting of the auxiliary wheel on the rail.
    • Figure 5A shows a first configuration of the apparatus of the invention where the transmission means comprise a first pinion (310) and second pinion (920) actuating assembly, intended to transmit movement to the braking system by means of a chain or the like encircling the pinion.
    • Figure 5B shows a second configuration of the invention where the transmission means comprise a levering actuation (320) and a plurality of levers (910) transmitting movement to the braking system.
  • Both figures (5A and 5B) are perspective views of the apparatus of the invention with the two mentioned configurations.
    • Description of a Preferred Embodiment of the Invention
  • A preferred embodiment of the invention is described below with the aid of the figures.
  • The invention relates to an apparatus for detecting overspeed of elevator components selected from a car, a counterweight and combinations thereof, having:
    • A wheel, with an auxiliary surface (100) configured to run on a first surface (210) of a travel rail (200) of the elevator component;
    • Actuating means (300) for actuating a braking mechanism of the elevator component, characterized in that it comprises speed detecting means for generating a synchronized alternating movement with the speed of the elevator component;
  • The speed detecting means are configured to not generate the synchronized alternating movement when a predetermined speed of the elevator component is exceeded and to thus activate the actuating (300) means;
    the speed detecting means comprise a ratchet mechanism comprising:
    • A polygonal-shaped cam (110) on a side of the wheel (100), integral therewith.
    • A ratchet wheel (120) on the same side of the wheel (100) and also integral therewith, said ratchet wheel (120) comprising a plurality of projections;
    • A rocker (130) having a first end and a second end, provided with:
      • A follower (140) at the first end for following the cam profile (110);
      • A ratchet (150) at the second end for locking the ratchet wheel (120), thus locking the entire wheel (100).
  • According to a first preferred embodiment of the invention, the apparatus further comprises:
    • Positioning means, formed by lock washers (400) for pushing the auxiliary surface of the wheel (100) against the first surface (210) of the rail (200) and attempting to prevent the sliding of said auxiliary surface of the wheel on the rail;
    • Means of detecting the derailment and the variation in a pressure setting of the auxiliary surface of the wheel (100) on the rail (200).
  • According to a second preferred embodiment of the invention, the apparatus further comprises slip monitoring means formed by an encoder (500) configured to control when the auxiliary wheel (100) slips by comparing a rotation speed of the auxiliary wheel (100) with a travel speed of the elevator component.
  • According to a third preferred embodiment of the invention, the apparatus further comprises at least one roller (600) configured to roll on a second surface (220) of the rail (200) opposite to the first surface (210) of the rail (200) for:
    • Offsetting a stress exerted by the auxiliary wheel (100) on the rail (200) for preventing a transmission of a reaction force on the elevator component;
    • Setting a pressure between the auxiliary wheel (100) and the rail (200).
  • According to a fourth preferred embodiment of the invention, the apparatus further comprises a remote actuating means or coil (800) for voluntarily engaging the ratchet (150).
  • Another embodiment of the invention relates to a system for detecting overspeed of an elevator component characterized in that it comprises at least one apparatus such as the one described above and transmission means joined to the actuating means (300) for transmitting an actuating movement to the braking mechanism of the elevator component.
  • In one configuration of the invention:
    • The apparatus is arranged in an upper part of the elevator component and the transmission means comprise a plurality of levers (910).
  • In another configuration of the invention:
    • The apparatus is arranged in a lower part of the elevator component and the transmission means comprise a first pinion (310) and second pinion (920) actuating assembly, which is intended to transmit movement to the braking system by means of a chain or the like encircling it.

Claims (8)

  1. An apparatus for detecting overspeed of elevator components selected from a car, a counterweight and combinations thereof, having:
    an auxiliary wheel (100) configured to run on a first surface (210) of a travel rail (200) of the elevator component;
    actuating means (300) for actuating a braking mechanism of the elevator component;
    characterized in that:
    it comprises speed detecting means for generating a synchronized alternating movement with the speed of the elevator component;
    the speed detecting means are configured to not generate the synchronized alternating movement when a predetermined speed of the elevator component is exceeded and to thus activate the actuating (300) means;
    the speed detecting means comprise a ratchet mechanism comprising:
    a polygonal-shaped cam (110) on a first side of the auxiliary wheel (100) integral with said auxiliary wheel (100);
    a ratchet wheel (120) on the first side of the auxiliary wheel (100) integral with said auxiliary wheel (100), said ratchet wheel (120) comprising a plurality of projections;
    a rocker (130) having a first end and a second end, provided with:
    a follower (140) at the first end for following the cam profile (110);
    a ratchet (150) at the second end for locking the ratchet wheel (120) and thus locking the auxiliary wheel (100).
  2. The apparatus of claim 1 characterized in that it further comprises:
    positioning means, comprising a plurality of lock washers (400) for pushing the auxiliary wheel (100) against the first surface (210) of the rail (200) and preventing sliding of the auxiliary wheel (100) on the rail (200);
    means for detecting derailment and variation in a pressure setting of the auxiliary wheel (100) on the rail (200).
  3. The apparatus of any of claims 1-2 characterized in that it further comprises slip monitoring means formed by an encoder (500) configured to control when the auxiliary wheel (100) slips by comparing a rotation speed of the auxiliary wheel (100) with a travel speed of the elevator component.
  4. The apparatus of any of claims 1-3 characterized in that it further comprises at least one roller (600) configured to roll on a second surface (220) of the rail (200) opposite to the first surface (210) of the rail (200) for:
    offsetting a stress exerted by the auxiliary wheel (100) on the rail (200) for preventing transmission of a reaction force on the elevator component;
    setting a pressure between the auxiliary wheel (100) and the rail (200).
  5. The apparatus of any of claims 1-4 characterized in that it further comprises remote actuating means or coil (800) for engaging the ratchet (150) voluntarily.
  6. A system for detecting overspeed of elevator components selected from a car, a counterweight and combinations thereof, characterized in that it comprises at least one apparatus according to any of claims 1-6 and transmission means joined to the actuating means (300) for transmitting an actuating movement to the braking mechanism of the elevator component.
  7. The system of claim 6, arranged in an upper part of the elevator component, characterized in that the transmission means for transmitting the actuating movement to the braking mechanism comprise a plurality of levers (910).
  8. The system of claim 6, arranged in a lower part of the elevator component, characterized in that the transmission means for transmitting the actuating movement to the braking mechanism comprise a first pinion (310) and second pinion (920) actuating assembly, where second pinion (920) is configured to transmit movement to the braking system by means of a chain meshing in said second pinion (920).
EP20070380228 2007-08-03 2007-08-03 Apparatus and system for detecting elevator car overspeed Expired - Fee Related EP2020397B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES07380228T ES2348101T3 (en) 2007-08-03 2007-08-03 APPARATUS AND SYSTEM TO DETECT AN EXCESS OF SPEED OF A BOX FOR ELEVATORS.
EP20070380228 EP2020397B1 (en) 2007-08-03 2007-08-03 Apparatus and system for detecting elevator car overspeed
DE200760007319 DE602007007319D1 (en) 2007-08-03 2007-08-03 Device and system for detecting increased speed of an elevator car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070380228 EP2020397B1 (en) 2007-08-03 2007-08-03 Apparatus and system for detecting elevator car overspeed

Publications (2)

Publication Number Publication Date
EP2020397A1 true EP2020397A1 (en) 2009-02-04
EP2020397B1 EP2020397B1 (en) 2010-06-23

Family

ID=38776201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070380228 Expired - Fee Related EP2020397B1 (en) 2007-08-03 2007-08-03 Apparatus and system for detecting elevator car overspeed

Country Status (3)

Country Link
EP (1) EP2020397B1 (en)
DE (1) DE602007007319D1 (en)
ES (1) ES2348101T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009055768A1 (en) * 2009-11-25 2011-05-26 Lödige Fördertechnik GmbH Device and method for securing, in particular the crash, of elevators and lifting devices
EP3553011A1 (en) * 2018-04-13 2019-10-16 Otis Elevator Company Overspeed detection and guiding devices for elevator systems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2857376C2 (en) * 1978-01-21 1981-10-01 Thyssen Aufzüge GmbH, 7303 Neuhausen Speed limiter
EP0121711A2 (en) * 1983-03-09 1984-10-17 Bongers & Deimann Velocity limiting device for a lift
US5065845A (en) * 1990-09-13 1991-11-19 Pearson David B Speed governor safety device for stopping an elevator car
ES2184612A1 (en) 2001-05-25 2003-04-01 De Vera Savera Sa Speed limiting system for lifts
DE10147629A1 (en) 2001-09-27 2003-04-24 Gerhard Schlosser Lift (elevator) with cabin speed limiter had speed limiter drive wheel driven by guide rail fulfilling triggering function for brake catcher on cabin
EP1516842A2 (en) 2003-09-18 2005-03-23 Aufzugevolution Schlosser & Schneider GmbH Elevator control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2857376C2 (en) * 1978-01-21 1981-10-01 Thyssen Aufzüge GmbH, 7303 Neuhausen Speed limiter
EP0121711A2 (en) * 1983-03-09 1984-10-17 Bongers & Deimann Velocity limiting device for a lift
US5065845A (en) * 1990-09-13 1991-11-19 Pearson David B Speed governor safety device for stopping an elevator car
ES2184612A1 (en) 2001-05-25 2003-04-01 De Vera Savera Sa Speed limiting system for lifts
DE10147629A1 (en) 2001-09-27 2003-04-24 Gerhard Schlosser Lift (elevator) with cabin speed limiter had speed limiter drive wheel driven by guide rail fulfilling triggering function for brake catcher on cabin
EP1516842A2 (en) 2003-09-18 2005-03-23 Aufzugevolution Schlosser & Schneider GmbH Elevator control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009055768A1 (en) * 2009-11-25 2011-05-26 Lödige Fördertechnik GmbH Device and method for securing, in particular the crash, of elevators and lifting devices
EP3553011A1 (en) * 2018-04-13 2019-10-16 Otis Elevator Company Overspeed detection and guiding devices for elevator systems

Also Published As

Publication number Publication date
DE602007007319D1 (en) 2010-08-05
EP2020397B1 (en) 2010-06-23
ES2348101T3 (en) 2010-11-30

Similar Documents

Publication Publication Date Title
EP2212230B1 (en) Elevator
EP3097036B1 (en) Elevator provided with a safety apparatus arrangement, and a safety apparatus
HU207260B (en) Clamping device for elevators with speed-limit device arranged on elevator cabin
CA2082773C (en) Double-sided wedge brake system for an elevator
EP2571799B1 (en) Integrated elevator safety system
EP3670414B1 (en) An elevator safety gear trigger and reset system
EP2771267B1 (en) Speed limiter for a lift
EP3231756B1 (en) Electronic safety actuation device with a power assembly
CN106553948B (en) Braking system for a hoisted structure and method of controlling braking of a hoisted structure
US8720262B2 (en) Testing a speed limiting system of an elevator installation
EP3569547B1 (en) Safety assembly for braking an elevator car and corresponding method
EP1783087B1 (en) Double-effect emergency braking apparatus for elevator cars
JP4369156B2 (en) Equipment for engaging safety brakes for elevator cars
EP2020397B1 (en) Apparatus and system for detecting elevator car overspeed
AU708452B2 (en) Lift cage movement arresting mechanism
CN111302194A (en) Step anti-lifting brake device and escalator equipment
US6296080B1 (en) Variable traction mechanism for rotary actuated overspeed safety device
CN213326262U (en) Anti-shearing protection device based on elevator car door linkage
CN111498641A (en) Parking device for car
KR101436675B1 (en) Apparatus for opening and closing door of elevator
CN113602932B (en) Car monitoring devices and vertical conveying equipment
CN212403069U (en) Parking device for car
SU1104087A2 (en) Lift cabin catcher
ES2937087A1 (en) Safety device for parachute activation in lifting systems (Machine-translation by Google Translate, not legally binding)
KR20230161737A (en) Floor sag prevention device for elevator

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20090422

17Q First examination report despatched

Effective date: 20090624

AKX Designation fees paid

Designated state(s): DE ES FR IT PT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT PT

REF Corresponds to:

Ref document number: 602007007319

Country of ref document: DE

Date of ref document: 20100805

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100623

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110502

26N No opposition filed

Effective date: 20110324

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007007319

Country of ref document: DE

Effective date: 20110301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110301

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20140702

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150804

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180710