EP1205418A1 - Dispositif de freinage pour ascenseur - Google Patents

Dispositif de freinage pour ascenseur Download PDF

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Publication number
EP1205418A1
EP1205418A1 EP00811075A EP00811075A EP1205418A1 EP 1205418 A1 EP1205418 A1 EP 1205418A1 EP 00811075 A EP00811075 A EP 00811075A EP 00811075 A EP00811075 A EP 00811075A EP 1205418 A1 EP1205418 A1 EP 1205418A1
Authority
EP
European Patent Office
Prior art keywords
rail
brake
lever
safety device
spring means
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
EP00811075A
Other languages
German (de)
English (en)
Other versions
EP1205418B1 (fr
Inventor
Ervin Perroud
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.)
COBIANCHI LIFTTEILE AG
Original Assignee
COBIANCHI LIFTTEILE 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 COBIANCHI LIFTTEILE AG filed Critical COBIANCHI LIFTTEILE AG
Priority to ES00811075T priority Critical patent/ES2342919T3/es
Priority to DE50015909T priority patent/DE50015909D1/de
Priority to EP00811075A priority patent/EP1205418B1/fr
Priority to AT00811075T priority patent/ATE465116T1/de
Publication of EP1205418A1 publication Critical patent/EP1205418A1/fr
Application granted granted Critical
Publication of EP1205418B1 publication Critical patent/EP1205418B1/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
    • B66B5/16—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 brake safety device, in particular for Elevator cabins, with a housing and at least two brake shoes, from which at least one parallelogram-shaped by at least two handlebars is connected to the housing and from a release position to a catch position is movable, in which the at least two brake shoes a stationary Clamp the rail between them using the force of spring means.
  • Safety gear devices have the task of adding an elevator car to stop at a high speed. You must be able to do that stopping with the payload loaded cabin from free fall, being for the a range to be achieved is set.
  • the present invention the task of proposing a safety gear, which with less Components and is therefore cheaper to produce and which ones also takes up less space than the known one with the same braking forces Contraption.
  • the brake safety device can be triggered by a release lever take place that attacks on the brake shoes or on the handlebars. This has with the result that the trigger force must be higher, the stronger that with the Parallelograms are co-operating springs. In other words would have to brake when using such a safety gear large masses, the trigger mechanism can be dimensioned stronger.
  • the longitudinal axis of the Rail forms the axis of symmetry and the ends facing the rail the two levers are articulated to one another by tabs.
  • the Rail facing end of the at least one lever friction increasing segment on and the lever and the friction increasing The segments are designed so that when the safety gear is triggered, the friction-increasing segment first touches the rail and at the further movement of the lever in the catching position again from the rail away. One is not in the catch position of the lever friction-increasing surface of the lever on the rail.
  • the brake safety device is installed in a housing 1, which is strongly dimensioned so that it occurs during braking can absorb high forces.
  • a rail permanently installed in the elevator shaft 2 protrudes into the housing 1, as can be seen in particular in FIG. 3.
  • the rail 2 are in the housing 1 brake shoes 5 on two links 3 movably arranged in one area.
  • Figure 1 which is the release position represents in which the safety gear in normal operation of the Elevator, you can see that the range of motion of the brake shoes 5 is limited downwards by stop pins 18 and that in the release position on the brake shoes 5 arranged brake pads 6 in a small Distance from the rail 2.
  • the other end of the range of motion the brake shoe 5 is reached in the catching position shown in FIG.
  • each link 3 carries a spring 4, which in the present Example has the shape of a package of disc springs.
  • the safety gear usually in pairs on opposite Sides of an elevator car are dimensioned so that in the catch position, the springs 4 on the brake shoes 5 exerted force is sufficient to over the between the brake pads 6 and Rail 2 occurring friction to the fully loaded cabin to stand safely bring.
  • the braking process is triggered, for example, by a Tripping device, which is parallel to the direction of movement of the elevator car Movable traction means, for example a rope.
  • the rope is at the ends the path of the elevator car over rollers, one of which with a Device for monitoring the speed and with a braking device is equipped for the rope.
  • a swiveling on the elevator car Mounted release lever is in Figures 1 and 2 with broken lines shown and designated 14.
  • the braking device is activated and the said rope is standing immediately silent.
  • the continued downward movement of the elevator car now causes that the release lever 14 through the rope attached to it in the direction the force exerted by arrow 15 is pivoted upwards.
  • the trigger lever 14 act on the brake shoes 5, for example via one in the Figures 1 and 2 right brake shoe 5 arranged pin.
  • the two on the right and brake shoes 5 arranged to the left of the rail 2 are operatively connected to one another be so that they are moved together towards rail 2 when triggered.
  • the upward helps on the brake shoes 5 acting friction force, the brake shoes fully in the catch position bring in the maximum braking force is applied.
  • Embodiment of the invention solved with a kind of servo brake is realized.
  • Two arranged below the handlebars 3 and approximately parallel to them Feed jacks 7 and 8 are pivotally mounted on the housing. How the handlebars 3 and 7 are also constructed so that they are one force to give way in its axis by a small amount.
  • Each feed lifter 7 and 8 also has a spring assembly 17, but these are weaker are dimensioned as the springs 4 of the handlebars 3.
  • a friction-increasing segment 9 is preferably interchangeable attached. This can be, for example, a hardened, Act component or teeth-like elevations component.
  • the release lever 14 not directly on the brake shoe 3, but on the in the drawing jack 7 shown on the right, via one on it attached pin 10.
  • the two feed jacks 7 and 8 are operatively connected to each other, with tabs 11 and 12 attached at their ends, through which a bolt 13 protrudes, as can be seen particularly clearly in FIG. 3.
  • this brake safety device is enough, by which Release lever 14 force exerted on the feed lifter 7 to both feed lifters 7 and 8 attack with their friction-increasing segments 9 on the rail allow.
  • the feed lifters are caused by the frictional force moved upward, butt at the lower ends 20 of the brake shoes 3 and push it upwards with great force into the catch position.
  • Figures 4 and 5 show the friction-increasing segment 9 of the Intake lifter 7 on a larger scale than in FIG. How one seen in Figure 5, the feed lifter 7 has at its front end Slit in which a segment 9 made of a hard material, for example hardened steel, with pins, for example heavy duty pins 21, is used interchangeably.
  • the segment 9 has an area with teeth 22 on and the end of the feed lifter 7 is designed so that only a part this tooth 22 protrudes, as can be seen particularly clearly in FIG.
  • the feed lifter 8 is of course also provided with such a segment 9 equipped.
  • This design means that when the Brake catch the teeth 22 only a short moment on the rail 2 attack and thereby the feed lifters 7 and 8 quickly into their upper, in Figure 2 shown end position are brought. The teeth touch in this end position 22 the rail 2 no longer, but the end faces 23 of the feed lifter 7 and 8 are on the rail 2.
  • FIG. 3 shows a connecting shaft denoted by 16, which is rotatably connected to the feed lifter 7 and has the task of a others arranged on the opposite side of the elevator car Trigger the safety gear at the same time by also there with the corresponding feed lifter is rotatably connected.
  • the brake safety device according to the invention is too fast down moving elevator car fields.
  • the inventive Device can also be used in such a way that it follows too quickly the elevator car traveling upstairs.
  • the device described either attached to the elevator car rotated by 180 ° or it is mounted on the counterweight of the elevator.
  • Safety gear devices are combined with each other that they are effective in both directions of travel of an elevator car.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Valve Device For Special Equipments (AREA)
EP00811075A 2000-11-13 2000-11-13 Dispositif de freinage pour ascenseur Expired - Lifetime EP1205418B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES00811075T ES2342919T3 (es) 2000-11-13 2000-11-13 Dispositivo de frenado para un ascensor.
DE50015909T DE50015909D1 (de) 2000-11-13 2000-11-13 Bremsfangvorrichtung für Aufzug
EP00811075A EP1205418B1 (fr) 2000-11-13 2000-11-13 Dispositif de freinage pour ascenseur
AT00811075T ATE465116T1 (de) 2000-11-13 2000-11-13 Bremsfangvorrichtung für aufzug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00811075A EP1205418B1 (fr) 2000-11-13 2000-11-13 Dispositif de freinage pour ascenseur

Publications (2)

Publication Number Publication Date
EP1205418A1 true EP1205418A1 (fr) 2002-05-15
EP1205418B1 EP1205418B1 (fr) 2010-04-21

Family

ID=8175026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00811075A Expired - Lifetime EP1205418B1 (fr) 2000-11-13 2000-11-13 Dispositif de freinage pour ascenseur

Country Status (4)

Country Link
EP (1) EP1205418B1 (fr)
AT (1) ATE465116T1 (fr)
DE (1) DE50015909D1 (fr)
ES (1) ES2342919T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1733992A1 (fr) * 2005-06-17 2006-12-20 Inventio Ag Dispositif parachute
EP3153451A1 (fr) * 2015-10-08 2017-04-12 Cobianchi Liftteile Ag Déclencheur de parachute à prise progressive
US10569993B2 (en) 2017-03-29 2020-02-25 Otis Elevator Company Safety brake actuation mechanism for a hoisted structure
WO2021122385A1 (fr) * 2019-12-17 2021-06-24 Inventio Ag Frein de sécurité pour un ascenseur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3538468B1 (fr) * 2016-11-10 2020-10-07 Inventio AG Frein à câble, cabine d'ascenseur et ascenseur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE173355C (fr) *
GB2314070A (en) * 1996-06-10 1997-12-17 David Stewart Cameron Clamping device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE173355C (fr) *
GB2314070A (en) * 1996-06-10 1997-12-17 David Stewart Cameron Clamping device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1733992A1 (fr) * 2005-06-17 2006-12-20 Inventio Ag Dispositif parachute
US7299898B2 (en) 2005-06-17 2007-11-27 Inventio Ag Progressive safety device
CN1880208B (zh) * 2005-06-17 2010-09-15 因温特奥股份公司 安全制动装置
EP3153451A1 (fr) * 2015-10-08 2017-04-12 Cobianchi Liftteile Ag Déclencheur de parachute à prise progressive
US10569993B2 (en) 2017-03-29 2020-02-25 Otis Elevator Company Safety brake actuation mechanism for a hoisted structure
WO2021122385A1 (fr) * 2019-12-17 2021-06-24 Inventio Ag Frein de sécurité pour un ascenseur
US11840425B2 (en) 2019-12-17 2023-12-12 Inventio Ag Safety brake for an elevator

Also Published As

Publication number Publication date
EP1205418B1 (fr) 2010-04-21
DE50015909D1 (de) 2010-06-02
ES2342919T3 (es) 2010-07-19
ATE465116T1 (de) 2010-05-15

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