EP0841282A1 - Dispositif de déclanchement de frein - Google Patents

Dispositif de déclanchement de frein Download PDF

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Publication number
EP0841282A1
EP0841282A1 EP97119130A EP97119130A EP0841282A1 EP 0841282 A1 EP0841282 A1 EP 0841282A1 EP 97119130 A EP97119130 A EP 97119130A EP 97119130 A EP97119130 A EP 97119130A EP 0841282 A1 EP0841282 A1 EP 0841282A1
Authority
EP
European Patent Office
Prior art keywords
trigger
release device
brake release
trigger element
lever
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Withdrawn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
EP97119130A
Other languages
German (de)
English (en)
Inventor
Christoph Liebetrau
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 EP97119130A priority Critical patent/EP0841282A1/fr
Publication of EP0841282A1 publication Critical patent/EP0841282A1/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Withdrawn legal-status Critical Current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 present invention relates to a brake release device for an elevator car, by means of which on both sides of a Braking devices located in the cabin structure from the governor rope and driver lever via a transmission element and a Trigger element are operated.
  • EP 0 498 597 discloses a braking device similar to that described type.
  • a limiter rope is on with the driver lever connected to the elevator car, which in turn crosswise arranged, replacing a linkage, tensioned connecting cables the braking device opposite the driving lever operated. Since the braking devices in this invention, such as often common to be located at the bottom of the elevator car these from the connecting cables above and below arranged parallel rockers, also connected with ropes operated.
  • the triggering takes place the braking device over several transmission elements, that is indirectly.
  • the connecting cables must be permanently taut have tensioned condition, resulting in high bearing loads and can cause greater friction losses.
  • everyone Transmission elements the full engagement force for the Transfer braking devices. Due to the larger one Transmission path for the opposite of the driving lever Braking device is an absolutely synchronous engagement of both Braking devices not guaranteed.
  • the present invention now wants one for the intended Show the purpose of the improved solution, and it is hereby the Task set a brake release device of the beginning to create the type mentioned, with the greatest functional reliability a quick and synchronous engagement of the braking devices enables.
  • the invention features i.a. in that the driver lever by means of a trigger mechanism a spring-loaded Tripping element that triggers with great temporal accuracy both brake devices actuated simultaneously.
  • Trigger element The one that connects and actuates the two braking devices Trigger element is designed as a torsion spring.
  • the part of the release element serving as a torsion spring is between two bearing points connected to the cabin structure arranged
  • the release element has a in the ready position Preload by a certain angle of rotation.
  • a lever part that serves to pretension and release Release element is in the direction of release by a compression spring supported.
  • the trigger mechanism has a compression spring in the Ready position held locking bolt, the Locking pin engages in a locking notch on the actuating shaft and this holds the release element in the prestressed position.
  • FIG. 1 shows an indicated cabin structure with 1 designated. Bearing points are connected to the cabin structure 1 3 arranged, in which a trigger element 2 is rotatably mounted is.
  • the bearings 3 are each against the ends of the Cabin structure 1 parallel torsion parts 15 of the Trigger element 2 arranged.
  • the trigger element 2 has in the In the middle an inverted U-shaped and vertically upwards directed lever part 16.
  • the outer ends of the torsion parts 15 are designed as actuating legs 17 and approximately perpendicular to the axis of the torsion parts 15, and approximately running horizontally.
  • the ends of the actuation legs 17 each have a joint 18, by means of which a push rod 12 is pivotally connected to a locking roller 14.
  • the locking roles 14 are components of the braking devices 13, which the Grip around the guide rails 27.
  • a trigger mechanism 4 By means of a trigger mechanism 4 the lever part 16 of the trigger element 2 by a Actuating shaft 7 in the shown by an angle alpha biased, held position.
  • a signaling switch 26 signals the readiness and release position of the Trigger mechanism 4.
  • the dash-dotted contour of the lever part 16 shows its relaxed position when not actuated Braking devices 13.
  • the actuation shaft 7 takes place via a Bowden cable 9, which is connected to the driver lever 10 and the driver lever 10 in turn with the limiter rope 11 is connected.
  • the Trigger mechanism 4 In the position shown is the Trigger mechanism 4, as already mentioned, in the Standby.
  • As a supporting acceleration force at a release is in addition to the preload force (angle ⁇ ) additionally the preload force between the trigger mechanism 4 and Lever part 16 used compression spring 5 used.
  • the dashed drawn contours of the lever part 16, the actuating leg 17 and the push rods 12 with the locking rollers 14 show the Position of the brake release device in the actuated state.
  • the trigger element 2 is shown on its own in FIG.
  • the trigger element 2 is preferably homogeneous from a single one Material made which has elastic properties having.
  • the torsion parts 15 are formed by on both sides of the inverted U-shaped lever part 16 to each other straight sections running on the same axis are provided, which function as actual torsion parts 15. This Torsion function is made possible by making them straight Parts can be rotated at their ends at points "a" and "b" are stored. This is the longest possible torsion stretch available.
  • the lever part 16 additionally has a slight bending spring, which, however, does not significantly increase the pretension angle alpha.
  • FIG. 3 shows the details of the trigger mechanism 4 shown.
  • a carrier of the trigger mechanism 4 is on the Cabin structure 1 attached trigger block 21 is provided.
  • a Shaft guide 22 is the actuating shaft 7 in its longitudinal direction slidably mounted.
  • the actuating shaft 7 has a Partial section visible, approximately rectangular locking notch 20, in which engages a locking pin 6 and the actuating shaft 7 in the standby position shown.
  • the locking bolt 6 has a stop shoulder 19 which rests on the left side at the left end of a spring chamber 28 and serves on the right side as a stop for a compression spring 8.
  • the Compression spring 8 holds the locking bolt 6 in the locked position Position and is on the right side on the right inner wall of the Spring chamber 28 supported.
  • the Bowden wire 9.1 is with the Locking bolt 6 firmly connected and slides in one Bowden cable casing 9.2, the left end of which is on the outside of the Spring chamber 28, or the trigger block 21 abuts.
  • the Trigger block 21 has the trigger shaft 7 a semicircular Switch notch 25 in which the contact sensor one Notification switch 26 protrudes. With a release movement of the release shaft 7 the contact sensor of the signaling switch 26 is pushed in and the contact element in the signaling switch 26 is actuated. The contact of the Contact element in the signaling switch 26 is used as a series contact in Safety circuit of the elevator control switched.
  • the path of movement the trigger shaft 7 is limited by a stop pin 24, wherein this stop pin 24 is only of importance during assembly work has and never in elevator operation or during a triggering operation Strike comes.
  • the Braking devices 13 Before commissioning the brake release device, the Braking devices 13 in the position shown in Fig.1 and there is the trigger element 2, or its lever part 16 still in the relaxed position (dash-dotted contour, angle Beta). Then the lever part 16 and the trigger shaft 7 against the Torsional force of the trigger part 2 and against the force of Compression spring 5 pressed to the left until the locking pin 6 in the Locking notch 20 of the actuating shaft 7 engages. After this The brake release device is in the operation Standby. It also becomes electric Ready position over the now deferred Signaling switch 26 reported to the safety circuit and on this The safety circuit is closed.
  • the governor rope 11 pulls the left leg of the Driver lever 10 upwards, the right leg moves down and pulls the Bowden wire 9.2 down, whereby the other end of the locking pin 6 from the locking notch 20th pulls out against the force of the compression spring 8 and the trigger shaft 7 releases.
  • the trigger shaft 7 moves with the Accelerating force of the pretensioned lever part 16 and the biased compression spring 5 in the direction of the arrow (Fig.3), with the the trigger shaft 7 operatively connected trigger element 2 by a abrupt partial rotation of the locking rollers 14 Braking devices 13 on the push rods 12 up in the Brake positions strikes and the locking rollers 14 in the braking end Holds position by means of the only partially relaxed compression spring 5.
  • the shape of the trigger element 2 is not on the shape shown limited. Depending on the type of cabin structure 1 and the location of the Arrangement can parts of the trigger element 2, as well as its Geometry generally more or less from the shape shown differ. Its placement can be above an elevator car or can also be provided under the same. The only important thing is that the trigger element 2 consists of resilient material and suitable for torsion suspension, as straight as possible Has sections.
  • trigger shaft 7 with locking notch 20 and Locking pin 6 can also be a ratchet lever, not shown are used, the pawl or hook the lever part 16 engages behind and that of the Bowden cable 9, analogous to the withdrawal of the Locking bolt 6, pulled away from the engaged lever part 16 and releases this.
  • the compression spring 5 is then again used and between lever part 16 and part of Clamped structure 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP97119130A 1996-11-11 1997-11-03 Dispositif de déclanchement de frein Withdrawn EP0841282A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97119130A EP0841282A1 (fr) 1996-11-11 1997-11-03 Dispositif de déclanchement de frein

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96810763 1996-11-11
EP96810763 1996-11-11
EP97119130A EP0841282A1 (fr) 1996-11-11 1997-11-03 Dispositif de déclanchement de frein

Publications (1)

Publication Number Publication Date
EP0841282A1 true EP0841282A1 (fr) 1998-05-13

Family

ID=26144272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119130A Withdrawn EP0841282A1 (fr) 1996-11-11 1997-11-03 Dispositif de déclanchement de frein

Country Status (1)

Country Link
EP (1) EP0841282A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161653A (en) * 1998-12-22 2000-12-19 Otis Elevator Company Ropeless governor mechanism for an elevator car
US6170614B1 (en) 1998-12-29 2001-01-09 Otis Elevator Company Electronic overspeed governor for elevators
US6173813B1 (en) 1998-12-23 2001-01-16 Otis Elevator Company Electronic control for an elevator braking system
US6253879B1 (en) 1998-12-22 2001-07-03 Otis Elevator Company Apparatus and method of determining overspeed of an elevator car
EP1359111A1 (fr) * 2002-05-02 2003-11-05 Inventio Ag Dispositif d'engagement de parachute pour une cabine d'ascenseur
SG135015A1 (en) * 2003-01-29 2007-09-28 Inventio Ag Device for monitoring cables of a lift
US8863909B2 (en) 2007-11-12 2014-10-21 Thyssenkrupp Elevator Ag Braking device for braking a lift car
CN105347131A (zh) * 2015-12-11 2016-02-24 天津市奥瑞克电梯有限公司 一种高速梯释放装置平衡结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203933B (de) * 1961-04-10 1965-10-28 Zd Y V I Plen Selbstsperrende Fangvorrichtung fuer schraege Aufzuege
DE1953867A1 (de) * 1968-11-08 1970-06-11 Stefan Sowitsch & Co Ing Gleitfangvorrichtung fuer Fahrstuehle
EP0498597A2 (fr) * 1991-02-06 1992-08-12 Otto Lok-To Poon Dispositif d'arrêt de sécurité pour ascenseurs
GB2258215A (en) * 1991-06-13 1993-02-03 Toshiba Kk Elevator with a governor.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203933B (de) * 1961-04-10 1965-10-28 Zd Y V I Plen Selbstsperrende Fangvorrichtung fuer schraege Aufzuege
DE1953867A1 (de) * 1968-11-08 1970-06-11 Stefan Sowitsch & Co Ing Gleitfangvorrichtung fuer Fahrstuehle
EP0498597A2 (fr) * 1991-02-06 1992-08-12 Otto Lok-To Poon Dispositif d'arrêt de sécurité pour ascenseurs
GB2258215A (en) * 1991-06-13 1993-02-03 Toshiba Kk Elevator with a governor.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161653A (en) * 1998-12-22 2000-12-19 Otis Elevator Company Ropeless governor mechanism for an elevator car
US6253879B1 (en) 1998-12-22 2001-07-03 Otis Elevator Company Apparatus and method of determining overspeed of an elevator car
US6173813B1 (en) 1998-12-23 2001-01-16 Otis Elevator Company Electronic control for an elevator braking system
US6170614B1 (en) 1998-12-29 2001-01-09 Otis Elevator Company Electronic overspeed governor for elevators
EP1359111A1 (fr) * 2002-05-02 2003-11-05 Inventio Ag Dispositif d'engagement de parachute pour une cabine d'ascenseur
SG135015A1 (en) * 2003-01-29 2007-09-28 Inventio Ag Device for monitoring cables of a lift
US8863909B2 (en) 2007-11-12 2014-10-21 Thyssenkrupp Elevator Ag Braking device for braking a lift car
EP2058262B2 (fr) † 2007-11-12 2016-06-01 ThyssenKrupp Elevator AG Dispositif de freinage destiné au freinage d'une cabine
CN105347131A (zh) * 2015-12-11 2016-02-24 天津市奥瑞克电梯有限公司 一种高速梯释放装置平衡结构

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