EP1557390B1 - Sicherheitseinrichtung für einen Aufzug - Google Patents

Sicherheitseinrichtung für einen Aufzug Download PDF

Info

Publication number
EP1557390B1
EP1557390B1 EP05000455A EP05000455A EP1557390B1 EP 1557390 B1 EP1557390 B1 EP 1557390B1 EP 05000455 A EP05000455 A EP 05000455A EP 05000455 A EP05000455 A EP 05000455A EP 1557390 B1 EP1557390 B1 EP 1557390B1
Authority
EP
European Patent Office
Prior art keywords
counterweight
buffer
elevator
elevator car
speed
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.)
Not-in-force
Application number
EP05000455A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1557390A1 (de
Inventor
Oliver Masch.-Ing. Htl Simmonds
Julien Masch.-Ing. Eth Maury
Josef Masch.-Ing. Htl Muff
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.)
Inventio AG
Original Assignee
Inventio 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 Inventio AG filed Critical Inventio AG
Priority to ES05000455T priority Critical patent/ES2305913T3/es
Priority to EP05000455A priority patent/EP1557390B1/de
Publication of EP1557390A1 publication Critical patent/EP1557390A1/de
Application granted granted Critical
Publication of EP1557390B1 publication Critical patent/EP1557390B1/de
Not-in-force 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

Definitions

  • the invention relates to a safety device for an elevator with an elevator car movable in an elevator car and a counterweight movable in the elevator shaft, wherein a speed of the elevator car or the counterweight monitoring speed limiter is provided which operates at overspeed the elevator car or the counterweight shutdown catcher ,
  • a disadvantage of the known device is that with the vertical boom a large shaft pit depth is necessary.
  • EP 0 432 634 A2 is one for the Emergency provided catching device for holding an elevator car to guide rails become known.
  • Each rail side a arranged in a housing catching wedge is provided.
  • the counter-acting catch wedges wedged between the guide rail and the housing.
  • the housing is connected by means of bolts and springs laterally displaceable with the elevator car. With the lateral displacement of the housing deviations of the guide rail from the vertical have no effect on the elevator car.
  • the invention aims to remedy this situation.
  • the invention as characterized in claim 1 solves the problem of avoiding the disadvantages of the known device and to provide a device by means of the ride comfort of the elevator passengers is improved in an emergency.
  • the advantages achieved by the invention are essentially to be seen in the fact that the safety and comfort of the elevator passengers in an emergency can be substantially improved. In case of triggering the safety gear, the elevator passengers are exposed to less large deceleration forces, which significantly reduces the risk of accidents. Moreover, the device according to the invention does justice to the standard which requires that the rebound speed must be less than the compression speed. It is also advantageous that the buffer element is easily replaceable and that reusable buffers or disposable buffers can be used. It is also advantageous that with the use of a buffer element, a safety catch device can also be used in elevator systems with higher speed limits than provided for the safety catch device. For example, a safety catch is allowed up to 0.63 m / s. With the buffer element the same safety catch is allowed up to 1 m / s.
  • Fig. 1 shows an elevator with a movable in an elevator shaft 1 elevator car 2, which is connected via a cable 3 with a counterweight 4.
  • the cable 3 is driven in the case of operation by means of a traction sheave 5 of a drive unit 6.
  • Elevator car 2 and counterweight 4 are guided by extending over the shaft height guide rails 7.
  • the elevator installation has a top floor with a top floor door 8, a second upper floor with a second upper floor door 9, further floors with further floor doors 10 and a bottom floor with a lowermost floor door 11.
  • the drive unit 6 and a speed limiter 13 is arranged, which monitors the speed of the elevator car 2 and stops the elevator car 2 at overspeed.
  • a double lever 14,14.1 is provided which is articulated at a pivot point 15,15.1.
  • a provided for stopping the elevator car 2 and arranged on a lower yoke 2.1 of the elevator car 2 safety gear 16,16.1 is connected by means of a first linkage 17,17.1 with one side of the double lever 14,14.1, wherein one side of the first double lever 14 with a Limiter rope 19 of the speed limiter 13 is connected.
  • the other side of the first double lever 14 is connected by means of a second linkage 18 with the second double lever 14.1. If one side of the first double lever 14 is moved upward, then the catching device 16, 16. 1 is engaged, locking elements wedging with the guide rail 7 stopping the elevator car 2 in an emergency.
  • the elevator car 2 drives the governor rope 19 by means of the first double lever 14. If the elevator car 2 is overspeed, the speed limiter 13 blocks the governor rope 19. As a result, the first double lever 14 is deflected upwards and the second double lever 14.1 is actuated, the safety gear 16,16.1 being engaged on both sides of the elevator car 2.
  • the endless governor rope 19 is tensioned by means disposed in a shaft pit 20 guide roller 21, wherein a roller axle 22 is hinged at one end at a pivot point 23 and the other end carries a tension weight 24.
  • Fig. 2 shows the left-hand safety gear 16.1 shown in Figure 1 with buffer 30.
  • the lower yoke 2.1 of the elevator car 2 has a boom 31 on which a carriage 32 is slidably mounted.
  • the carriage 32 is guided on both sides along linear guides 33 arranged on the arm 31, for example by means of bolts 34.
  • the carriage 32 When triggered in the downward direction of the safety gear 16.1, the carriage 32 performs a symbolized by an arrow P1 vertical, or extending in the longitudinal direction of the guide rail 7 movement.
  • the catching device 16.1 which settles on the guide leg of the guide rail 7 as a whole effects the movement P1.
  • the buffer 30 arranged between the carriage 32 and a stop 35 of the lower yoke 2.1 springs.
  • the buffer 30 springs back out, the buffer 30 being constructed and dimensioned such that the rebound speed is less than the compression speed.
  • reusable buffers for example, cellular polyurethane.
  • Disposable buffers are also possible.
  • the right-hand catching device 16 shown in FIG. 1 with buffer 30 and extension arm 31 is constructed analogously.
  • the safety gear 16,16.1 with buffer and boom can also be arranged on the counterweight 4.
  • the buffer 30 has a return loss that causes the rebound speed to be less than the jounce speed.
  • a buffer material consisting of a cellular polyurethane can be used.
  • the damping effect is largely due to the energy consumption of the warming air in the polyurethane cells.
  • this damping effect is supported by internal friction of the polyurethane material and displacement of the air bubbles in the material through the porous cell walls.
  • the device according to the invention can also be used for catching upwards.
  • the safety gear is at the top and the buffer at the bottom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Valve Device For Special Equipments (AREA)
  • Elevator Control (AREA)
EP05000455A 2004-01-22 2005-01-12 Sicherheitseinrichtung für einen Aufzug Not-in-force EP1557390B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES05000455T ES2305913T3 (es) 2004-01-22 2005-01-12 Dispositivo de seguridad para un ascensor.
EP05000455A EP1557390B1 (de) 2004-01-22 2005-01-12 Sicherheitseinrichtung für einen Aufzug

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04405042 2004-01-22
EP04405042 2004-01-22
EP05000455A EP1557390B1 (de) 2004-01-22 2005-01-12 Sicherheitseinrichtung für einen Aufzug

Publications (2)

Publication Number Publication Date
EP1557390A1 EP1557390A1 (de) 2005-07-27
EP1557390B1 true EP1557390B1 (de) 2008-05-07

Family

ID=34932041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05000455A Not-in-force EP1557390B1 (de) 2004-01-22 2005-01-12 Sicherheitseinrichtung für einen Aufzug

Country Status (4)

Country Link
EP (1) EP1557390B1 (es)
AT (1) ATE394337T1 (es)
DE (1) DE502005003930D1 (es)
ES (1) ES2305913T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008016141A1 (de) * 2008-03-28 2009-11-05 Riedl Aufzugbau Gmbh & Co. Kg Aufzug mit platzsparender Spanngewichtanordnung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI74686C (fi) * 1986-05-06 1988-03-10 Kone Oy Faongapparat, till exempel foer hisskorg eller motvikt.
FI85129C (fi) * 1989-12-14 1992-03-10 Kone Oy Faongapparat.
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

Also Published As

Publication number Publication date
ES2305913T3 (es) 2008-11-01
DE502005003930D1 (de) 2008-06-19
ATE394337T1 (de) 2008-05-15
EP1557390A1 (de) 2005-07-27

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