EP1065164B1 - Dispositif de tension pour un câble de limiteur de vitesse - Google Patents

Dispositif de tension pour un câble de limiteur de vitesse Download PDF

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Publication number
EP1065164B1
EP1065164B1 EP00113417A EP00113417A EP1065164B1 EP 1065164 B1 EP1065164 B1 EP 1065164B1 EP 00113417 A EP00113417 A EP 00113417A EP 00113417 A EP00113417 A EP 00113417A EP 1065164 B1 EP1065164 B1 EP 1065164B1
Authority
EP
European Patent Office
Prior art keywords
governor
car
tensioning
tensioning device
rod
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 - Lifetime
Application number
EP00113417A
Other languages
German (de)
English (en)
Other versions
EP1065164A3 (fr
EP1065164A2 (fr
Inventor
Rudolf Deimann
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.)
Bode Components GmbH
Original Assignee
Bode Components GmbH
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
Priority claimed from DE19929340A external-priority patent/DE19929340A1/de
Application filed by Bode Components GmbH filed Critical Bode Components GmbH
Publication of EP1065164A2 publication Critical patent/EP1065164A2/fr
Publication of EP1065164A3 publication Critical patent/EP1065164A3/fr
Application granted granted Critical
Publication of EP1065164B1 publication Critical patent/EP1065164B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66B5/04—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
    • 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

Definitions

  • the invention relates to a tensioning device for a governor rope of a speed limiter for elevator systems.
  • a tensioning device is e.g. from US-A-5 299 661.
  • Rope-operated elevator systems generally consist of a wire rope group fastened to the car head, which are guided via one or more deflection rollers in the region of the elevator shaft head with counter loads arranged in a guide rail, one of the deflection rollers being connected to a drive.
  • the counter-loads are designed so that they compensate for half of the maximum permissible load of the car including the car weight.
  • a safety gear in the area of the car, which generally consists of wedge pieces arranged on the car, which guide rails interact.
  • a speed limiter is used with a triggering device for triggering the safety gear.
  • the triggering device causes a release of the slips.
  • the catch wedges slide while in the gap between the car and guide rail, the acceleration force of the car leads to a setting of the slips and a slowing down of the car.
  • the car can be braked safely regardless of the elevator drive or the cable suspension.
  • German Offenlegungsschrift 40 36 073 describes a device for triggering a safety gear for the elevator car of an elevator, in which a speed governor wheel with a safety pendulum is used.
  • the speed governor wheel is connected via a governor cable to the release mechanism of the safety gear on the car.
  • the governor rope runs from the speed governor wheel to the shaft pit, where it is again steered upwards via a tension pulley and in turn is fastened at its end to the triggering device on the car.
  • the tension roller is slidably mounted or pivotably connected and connected to a tension weight, so that the governor rope maintains a certain minimum voltage, even if this lengthens over a certain period of use. This ensures a safe running of the wire rope in the respective wheel grooves and thus a reliable triggering of the safety gear on the governor.
  • the described speed limiter thus provides a satisfactory trip device for the safety gear of a car to avoid excessive acceleration in the downward direction, a safeguard against excessive upward acceleration is not given.
  • the counterweight for the car is designed for half the maximum load of the car, it may happen that the car is accelerated at partial load below half the maximum load in the upward direction.
  • the majority of known elevator systems do not have a security system for this incident.
  • the invention is therefore an object of the invention to provide a triggering device for the safety gear of a car, which ensures a safe triggering in case of over-acceleration of the car in the upward direction.
  • the object is achieved by a device according to claim 1.
  • the car arranged on thecommunsbesky clamping mechanism reliably prevents slipping over of the governor rope on the governor wheel by the clamping mechanism is triggered simultaneously with the governor and fixes the cable section to the governor and clamping mechanism.
  • the governor rope With the help of a arranged on the lower tension roller restraint device yielding of the governor rope can be prevented by unintentional displacement of the tension roller.
  • the governor rope can also be used safely to trigger the safety gear in case of excessive upward acceleration of the car.
  • the retaining device on the lower tensioning roller consists of a retaining arm which is mounted displaceably on a lever arm of the tensioning roller and has on one side a sleeve displaceably mounted on a rod.
  • the clamping mechanism between the governor wheel and the car may be connected to the trip mechanism of the governor speed governor via a trip bar so that initiation of the speed governor gear mechanism is directly translated mechanically into initiation of the clamp mechanism.
  • the speed limiter consists of a Beskyrrad 10, with a V-shaped or undercut V-groove 20 in which a governor rope 30 is arranged.
  • the Beskyrrad 10 has a release mechanism for the speed limit.
  • This has a swinging two-armed pendulum 43, which has at its one arm a roller 46 which runs along a four elevations cam track 12 of the governor wheel 10.
  • the other arm of the pendulum 43 is provided with a tip that does not engage in the catch cams 13 of the Beskyrrades 10 as long as the roller 46 abuts the cam track 12.
  • This system provides a pendulum 43 acting on compression spring 42nd
  • the governor rope 30 is either an endless rope or is attached to two points of the car (not shown), so that a circulating power flow through the governor rope comes about.
  • Car side is below the Beipporrades 10 a clamping mechanism 50 is arranged, which presses on a pin 66 eccentrically mounted brake shoe 65 with its braking surface 67 via a trip bar 60 which is in communication with the trigger mechanism of the Beskyrrades 10 against the cable 30 and the pressure plate 55.
  • the cable is located in the cable guide 57.
  • the governor rope 30 acts on the safety gear of the car (not shown), which can be triggered both by locking the governor cable 30 when driving upwards as well as during the descent.
  • the regulator cable is guided via a tension roller 70 in the shaft pit of the elevator shaft, as shown in Fig. 2.
  • the tensioning roller 70 is mounted pivotably about a bolt 80 on a holding arm 90.
  • the bias of the tension roller 70 is ensured by a arranged at the end of the lever arm 90 weight 110.
  • the lever arm 90 is connected at its other end via the bolt 80 and a carrier 120 with a guide rail 130 of the elevator shaft.
  • the carrier 120 has above the lever arm 90 a substantially vertically to the lever arm threaded rod 140, on which a sleeve 150 is arranged, which is connected via a retaining arm 160 with a arranged on the lever arm 90 running shoe 170.
  • the retaining arm 160 which does not interfere with the operation of the tension roller 70 during normal operation, in that he allows the running arm 170 and the bushing 150 free pivoting of the lever arm 90, wedged by the jerky upward movement of the lever arm 90 with the sleeve 150 in the threaded rod 140, whereby the retaining force on the running shoe 170 can act on the lever arm 90.
  • a secure wedging the sleeve 150 in the rod 140 is ensured by the thread-like surface.
  • the threaded rod 140 is slidably connected via two displaceably mounted pins 180, 190 with the carrier 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Electric Cable Installation (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Jib Cranes (AREA)

Claims (9)

  1. Dispositif de tension pour un câble d'un limiteur de vitesse d'un système de levage comprenant un rouleau de tension (70), par l'intermédiaire duquel le câble est guidé, un dispositif de maintien fixe (120, 140), ainsi qu'un dispositif de retenue (150, 160), qui limite un déplacement du rouleau de tension vers le haut, caractérisé en ce que le dispositif de maintien comprend une barre (140) dans laquelle se coince le dispositif de retenue en cas de déclenchement du limiteur de vitesse.
  2. Dispositif de tension selon la revendication 1, caractérisé en ce que le rouleau de tension (70) est disposé sur un bras de levier pivotant (90).
  3. Dispositif de tension selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le bras de levier (90) est chargé d'un poids (110).
  4. Dispositif de tension selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que la barre du dispositif de maintien (120, 140) est orientée essentiellement verticalement par rapport au bras de levier.
  5. Dispositif de tension selon la revendication 4, caractérisé en ce que la barre est conçue comme une barre filetée (140).
  6. Dispositif de tension selon l'une quelconque des revendications, caractérisé en ce que la barre est reliée sur une distance définie de manière mobile à un support (120) du dispositif de maintien.
  7. Dispositif de tension selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de retenue comprend un manchon (150) logé sur la barre du dispositif de maintien de manière à pouvoir se déplacer dans la direction longitudinale de celui-ci.
  8. Dispositif de tension selon la revendication 7, caractérisé en ce que le dispositif de retenue (160) comprend un sabot de roulement (170) logé de manière mobile sur le bras de levier (90).
  9. Dispositif de tension selon les revendications 7 et 8, caractérisé en ce que le manchon (150) est relié par un bras de retenue (160) au sabot de roulement (170).
EP00113417A 1999-06-26 2000-06-23 Dispositif de tension pour un câble de limiteur de vitesse Expired - Lifetime EP1065164B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19929340 1999-06-26
DE19929340A DE19929340A1 (de) 1998-12-07 1999-06-26 Geschwindigkeitsbegrenzer

Publications (3)

Publication Number Publication Date
EP1065164A2 EP1065164A2 (fr) 2001-01-03
EP1065164A3 EP1065164A3 (fr) 2004-04-14
EP1065164B1 true EP1065164B1 (fr) 2007-02-14

Family

ID=7912658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00113417A Expired - Lifetime EP1065164B1 (fr) 1999-06-26 2000-06-23 Dispositif de tension pour un câble de limiteur de vitesse

Country Status (3)

Country Link
EP (1) EP1065164B1 (fr)
AT (1) ATE353848T1 (fr)
DE (1) DE50014051D1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH572863A5 (fr) * 1974-06-24 1976-02-27 Inventio Ag
US5299661A (en) * 1992-11-03 1994-04-05 Otis Elevator Company Mechanical overspeed safety device
US5617933A (en) * 1995-06-13 1997-04-08 Otis Elevator Company Bi-directional elevator governor

Also Published As

Publication number Publication date
DE50014051D1 (de) 2007-03-29
EP1065164A3 (fr) 2004-04-14
EP1065164A2 (fr) 2001-01-03
ATE353848T1 (de) 2007-03-15

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