EP0806394A1 - Dispositif de sécurité pour ascenseur - Google Patents

Dispositif de sécurité pour ascenseur Download PDF

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Publication number
EP0806394A1
EP0806394A1 EP97106340A EP97106340A EP0806394A1 EP 0806394 A1 EP0806394 A1 EP 0806394A1 EP 97106340 A EP97106340 A EP 97106340A EP 97106340 A EP97106340 A EP 97106340A EP 0806394 A1 EP0806394 A1 EP 0806394A1
Authority
EP
European Patent Office
Prior art keywords
cable
safety device
angle
bowden
cables
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.)
Withdrawn
Application number
EP97106340A
Other languages
German (de)
English (en)
Inventor
Jörg Dipl.-Ing. HTL Arnold
Reinhard Dipl.-Ing. Fh Woebcke
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 EP97106340A priority Critical patent/EP0806394A1/fr
Publication of EP0806394A1 publication Critical patent/EP0806394A1/fr
Withdrawn legal-status Critical Current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
    • 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 relates to a safety device for an elevator system, consisting of a release device which is connected to safety devices by means of Bowden cables, a speed limiter cable actuating the release device in the event of overspeed of an elevator car and / or a counterweight which, by means of the Bowden cables, acts on the elevator car and / or on Triggers arranged safety devices triggers and thereby stops the elevator car and / or the counterweight.
  • a safety device that can be actuated by means of a cable and jacket consists of Bowden cables. Connection brackets are arranged on a rod that can be actuated in a housing by means of a speed limiter cable and to which one end of the cables of the two Bowden cables are attached. One end of a jacket carrying a cable is arranged on the housing. The other ends of the cables of the two Bowden cables are each connected to a carriage with a roller of the safety gear. The other jacket ends are each arranged on a safety gear block.
  • a disadvantage of this triggering device is that both Bowden cables must be precisely adjusted so that both safety gear trip with safety and shut down the elevator system. If the length of a cable of a Bowden cable changes, for example due to stress, the carriage with the roller is not sufficiently deflected, and the roller cannot wedge between the wedge-shaped track and the guide rail.
  • the invention seeks to remedy this.
  • the invention as characterized in claim 1, solves the problem of avoiding the disadvantages of the known device and creating a triggering device with which the safety of an elevator system is improved.
  • the advantage achieved by the invention is essentially to be seen in the fact that with the triggering device according to the invention, one catching device can actuate the other catching device and thus it is guaranteed in any case that both catching devices are triggered at excessive speed. If an unintended actuation of the locking element of one safety device occurs at normal speed, the other safety device is also triggered and the elevator car and / or the counterweight is shut down in a safe manner. It is also advantageous that only one safety switch is required for both safety gear.
  • 1 and 2 denotes a triggering device arranged on an elevator car and / or on a counterweight, consisting of a housing 2 with a further housing 3, an actuating lever 4 and a first angle 5.
  • the housing 2 has a bottom 6, a first side wall 7, a second side wall 8 and a third side wall 9.
  • One end of the actuating lever 4 is rotatably mounted on a lever axis 10 arranged between the first side wall 7 and the second side wall 8.
  • the other end of the actuating lever 4 is connected to a cable lock 11 of a speed limiter cable 12.
  • the speed limiter cable 12 is guided by means of a deflection roller of the speed limiter arranged on the shaft head of the elevator shaft and a tensioning roller arranged in the shaft pit.
  • the ends of the speed limiter cable 12 are connected to the cable lock 11.
  • the speed limiter monitors the speed of the elevator car and / or the counterweight. In the event of excessive speed, the speed limiter blocks the cycle roller, as a result of which the actuating lever 4 is actuated by the cable lock 11 when the elevator car and / or the counterweight moves downward.
  • the actuating lever 4 In normal operation, the actuating lever 4 is pressed against a lower stop 14 by means of a first spring 13 arranged on the lever axis 10. In the event of overspeed, the speed limiter cable 12 is pulled through on the blocked deflection roller and the actuating lever 4 is deflected upwards. A first spring end 15 of the first spring 13 is on the actuating lever 4 arranged and a second spring end 16 of the first spring 13 is arranged at a spring pivot point of the first side wall 7 of the housing 2.
  • a safety switch 17 monitors the position of the first angle 5 and switches off the drive motor of the elevator system in the event of excessive speed or when an blocking element of at least one safety device is inadvertently actuated.
  • the first angle 5 has a first leg 18 and a second leg 19 with a first stop 20, a second stop 21 and a first elongated slot 22.
  • One end of the second leg 19 is slidably immersed in a first opening 23 of the actuating lever 4, the second leg 19 being held by a first bolt 24 penetrating the first opening 23 and the first elongated slot 22 during normal operation and at excessive speed of the deflection of the actuating lever 4 following is pulled up.
  • a Bowden cable usually consists of a sheath, also called sheathing, and a cable, also called a train.
  • Bowden cables with which tensile forces and small compressive forces are transmitted, usually have a cable that consists of several stranded thin wires.
  • the end of the jacket has a threaded sleeve which is connected to a fixed thread. The length of the jacket can be changed by means of the threaded sleeve compared to the cable guided in the jacket.
  • a cable head forming the end of the cable also called an end piece, is connected to the part to be moved.
  • the further housing 3 arranged on the bottom 6 of the housing 2 serves to hold a first Bowden cable 25 and a second Bowden cable 26.
  • the Bowden cables 25, 26 can be arranged directly on the housing 2.
  • the first Bowden cable 25 transmits the movement of the first angle 5 by means of a tensile force to a first safety device 27 arranged on the elevator car and / or on the counterweight.
  • the second Bowden cable 26 transmits the movement of the first angle 5 to a second on the elevator car and / or safety device, not shown, arranged on the counterweight.
  • the first Bowden cable 25 consists of a first jacket 28 in which a first cable 29 is guided.
  • a first threaded sleeve 30 is arranged at one end of the first jacket 28 and is connected to a thread of a first nut 31 fastened to the housing 2 or further housing 3.
  • One end of the first cable 29 has a first cable head 32, which is arranged between the first stop 20 and the first leg 18 of the first angle 5.
  • the first cable head 32 rests on the first leg 18.
  • the first cable head 32 is in contact with the first stop 20 and presses the first angle 5 upwards.
  • the effective length of the first cable 29 relative to the first jacket 28 can be adjusted.
  • the second Bowden cable 26 consists of a second jacket 33, in which a second cable 34 is guided.
  • a second threaded sleeve 35 is arranged at one end of the second jacket 33 and is connected to a thread of a second nut 36 fastened to the housing 2 or further housing 3.
  • One end of the second cable 34 has a second cable head 37, which is arranged between the second stop 21 and the first leg 18 of the first angle 5.
  • the second cable head 37 rests on the first leg 18. If the second cable 34 is subjected to pressure from the second safety device, the second cable head 37 is in contact with the second stop 21 and presses the first angle 5 upwards.
  • the second threaded sleeve 35 With the second threaded sleeve 35, the effective length of the second cable 34 relative to the second jacket 33 can be adjusted.
  • the ends of the cables 29, 34 have threaded sleeves instead of the cable heads 32, 37, which are screwed directly to the first leg 18 of the first angle 5.
  • the first safety device 27 consists of a block 38 with a wedge-shaped recess 39, in which a free leg 40 of a guide rail arranged in the elevator shaft runs.
  • a second bracket 41 is arranged on the block 38 with a third nut 42, the thread of which is connected to a third threaded sleeve 43 of the other end of the first jacket 28. With the third threaded sleeve 43, the effective length of the first cable 29 relative to the first jacket 28 can be adjusted.
  • the other end of the first cable 29 has a third cable head 44, which is arranged between a third stop 45 and a first tab 46 of a slider 47. When the first cable 29 is subjected to tensile stress, the third cable head 44 is in contact with the first tab 46.
  • the third cable head 44 rests on the third stop 45 and presses the slide 47 upward.
  • the slider 47 is guided in a second elongated slot 48 by means of a spring bolt 49 arranged on the block 38.
  • a second spring 50 is arranged on the spring pin 49, a third spring end 51 of the second spring 50 being arranged on the second bracket 41 or on the spring pin 49 and a fourth spring end 52 of the second spring 50 being arranged on the first tab 46 of the slide 47.
  • the ends of the cables 29, 34 on the side of the catching devices have threaded sleeves instead of the cable heads 44, which are screwed directly to the slider 47.
  • the second spring 50 presses the slide 47 downward, a roller 54, which is arranged on a roller axis 53 of the slide 47 and serves as a locking element, bears against a wedge bevel 55 of the wedge-shaped recess 39.
  • the slider 47 is actuated by means of the first cable 29 against the spring force of the second spring 50, the roller 54 being rolled along the wedge bevel 55 to the free leg 40 of the guide rail.
  • the roller 54 After the contact of the roller 54 with the free leg 40, the roller 54 is pulled into the wedge-shaped recess 39 because of the relative movement of the block 38 relative to the guide rail and wedges between the free leg 40 and the wedge bevel 55, the elevator car and / or that Counterweight is brought to a standstill.
  • the slide 47 By lifting the roller 54, the slide 47 is deflected upwards, this deflection being transmitted to the first cable 29 by means of a third stop 45 and a third cable head 44.
  • the first cable 29 under pressure pushes the first angle 5 upwards through the first opening 23. If the second safety device has not triggered, the first angle 5 pulls the second cable 34 with it and brings the role of the second safety device into contact with the guide rail, the triggering process of the second safety device being initiated.
  • One safety device can trigger the other safety device by means of the Bowden cable 25, 26 and the first angle 5 of the triggering device 1, which in any case ensures that both safety devices are triggered in the event of excessive speed or when the blocking element is actuated unintentionally.
  • the elevator car and / or the counterweight When unclamping, the elevator car and / or the counterweight is raised and the roller 54 thereby released is brought back into its starting position by means of the second spring 50 and the slide 47 and held in this position.
  • the first angle 5 follows this movement by means of the Bowden cable 25 and is brought back into position before the roller 54 comes into contact with the guide rail.
  • the second safety device has the same structure and functions together with the second Bowden cable 26 as the first safety device 27 together with the first Bowden cable 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP97106340A 1996-05-06 1997-04-17 Dispositif de sécurité pour ascenseur Withdrawn EP0806394A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97106340A EP0806394A1 (fr) 1996-05-06 1997-04-17 Dispositif de sécurité pour ascenseur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96810287 1996-05-06
EP96810287 1996-05-06
EP97106340A EP0806394A1 (fr) 1996-05-06 1997-04-17 Dispositif de sécurité pour ascenseur

Publications (1)

Publication Number Publication Date
EP0806394A1 true EP0806394A1 (fr) 1997-11-12

Family

ID=26144204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106340A Withdrawn EP0806394A1 (fr) 1996-05-06 1997-04-17 Dispositif de sécurité pour ascenseur

Country Status (1)

Country Link
EP (1) EP0806394A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007029049A1 (fr) * 2005-09-09 2007-03-15 Otis Elevator Company Dispositif de remise a zero de commutateur electrique de securite pour un dispositif de securite de cabine d'ascenseurs
KR101080661B1 (ko) * 2003-09-10 2011-11-08 인벤티오 아게 안전제동장치를 작동시키는 작동 기구를 구비한 승강기설비, 안전제동장치를 작동시키기 위한 풀로드 및안전제동장치를 작동시키는 방법
CN114572899A (zh) * 2022-03-07 2022-06-03 合肥井松智能科技股份有限公司 一种超重载堆垛机载货台总成防坠落装置
CN119349483A (zh) * 2024-12-26 2025-01-24 四川迪斯卡电梯制造有限公司 一种电梯安装用工作平台
CN119873668A (zh) * 2025-03-27 2025-04-25 浙江中扬立库技术有限公司 一种超重堆垛机载货台制动装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441107A (en) * 1967-06-26 1969-04-29 Otis Elevator Co Flexible guide clamp safety system
FR2654087A1 (fr) * 1989-11-03 1991-05-10 Siminor Sa Utilisation de cables engaines pour le declenchement de parachutes d'ascenseurs.
EP0498597A2 (fr) * 1991-02-06 1992-08-12 Otto Lok-To Poon Dispositif d'arrêt de sécurité pour ascenseurs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441107A (en) * 1967-06-26 1969-04-29 Otis Elevator Co Flexible guide clamp safety system
FR2654087A1 (fr) * 1989-11-03 1991-05-10 Siminor Sa Utilisation de cables engaines pour le declenchement de parachutes d'ascenseurs.
EP0498597A2 (fr) * 1991-02-06 1992-08-12 Otto Lok-To Poon Dispositif d'arrêt de sécurité pour ascenseurs

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101080661B1 (ko) * 2003-09-10 2011-11-08 인벤티오 아게 안전제동장치를 작동시키는 작동 기구를 구비한 승강기설비, 안전제동장치를 작동시키기 위한 풀로드 및안전제동장치를 작동시키는 방법
WO2007029049A1 (fr) * 2005-09-09 2007-03-15 Otis Elevator Company Dispositif de remise a zero de commutateur electrique de securite pour un dispositif de securite de cabine d'ascenseurs
KR100938272B1 (ko) * 2005-09-09 2010-01-22 오티스 엘리베이터 컴파니 엘리베이터들의 카 안전 디바이스를 위한 전기 안전 스위치리세팅 디바이스
US7954605B2 (en) 2005-09-09 2011-06-07 Otis Elevator Company Electric safety switch resetting device for a car safety device of elevators
CN114572899A (zh) * 2022-03-07 2022-06-03 合肥井松智能科技股份有限公司 一种超重载堆垛机载货台总成防坠落装置
CN114572899B (zh) * 2022-03-07 2024-04-16 合肥井松智能科技股份有限公司 一种超重载堆垛机载货台总成防坠落装置
CN119349483A (zh) * 2024-12-26 2025-01-24 四川迪斯卡电梯制造有限公司 一种电梯安装用工作平台
CN119873668A (zh) * 2025-03-27 2025-04-25 浙江中扬立库技术有限公司 一种超重堆垛机载货台制动装置

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