EP0099352B1 - Bremsvorrichtung für Aufzüge - Google Patents

Bremsvorrichtung für Aufzüge Download PDF

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Publication number
EP0099352B1
EP0099352B1 EP83890114A EP83890114A EP0099352B1 EP 0099352 B1 EP0099352 B1 EP 0099352B1 EP 83890114 A EP83890114 A EP 83890114A EP 83890114 A EP83890114 A EP 83890114A EP 0099352 B1 EP0099352 B1 EP 0099352B1
Authority
EP
European Patent Office
Prior art keywords
roller
rail
braking device
housing frame
leaf spring
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
Application number
EP83890114A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0099352A3 (en
EP0099352A2 (de
Inventor
Werner Koppensteiner
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.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
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 Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP0099352A2 publication Critical patent/EP0099352A2/de
Publication of EP0099352A3 publication Critical patent/EP0099352A3/de
Application granted granted Critical
Publication of EP0099352B1 publication Critical patent/EP0099352B1/de
Expired 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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • 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 braking device for elevators, with a housing frame which is arranged to receive a rail opposite two flat surfaces, one surface of the rail connected to the housing frame, preferably with a brake pad, e.g. B. of brass, provided brake shoe and a catch roller is provided on the other, the brake shoe opposite surface of the rail and a spring-loaded, with a surface of the rail a tapered wedge-shaped pressure piece is provided for the catch roller.
  • a brake pad e.g. B. of brass
  • a brake device of the type mentioned at the outset has also become known (DE-OS 2 604 157), which is designed as a brake safety device attached to the elevator car.
  • a pivotably mounted wedge is pressed against the catching roller by means of a plate spring assembly as soon as it is pulled into the upwardly tapered gap between the wedge and the rail, triggered by an elevator regulator.
  • a special brake wedge also ensures that the roller stands still during the actual braking process.
  • the aim of the invention is to provide a braking device that can be used as a buffer for a car or a counterweight, the braking process being progressive and with as few individual parts as possible a reliable and maintenance-free function even after several braking processes (mostly brake tests).
  • the rail which is displaceable with respect to the stationary housing frame, is provided above the housing frame with a receiving plate for a car or a counterweight, the pressure piece being designed as a leaf spring mounted in the housing frame and the roller lies between a surface of the rail and the leaf spring in the downwardly tapered gap.
  • the construction according to the invention has a reliable function despite a very simple, purely mechanical construction.
  • the leaf spring is composed of at least two individual springs.
  • the free roll In order to better guide the free roll, to form a defined contact surface of the roll on the profile and in order to ensure that the roll rolls off the profile, it is recommended that the free roll, in a manner known per se, have at least one protruding from the other roll surface with a knurling or the like.
  • Provided collar which is assigned a groove running in the leaf spring from top to bottom.
  • a lower stop is provided for the free roll in the housing frame, the material from which the stop is made being softer than the roll material. It is useful if the free roller consists of steel hardened at least on the surface and the stop made of brass. The lower stop for the free roller can also advantageously have a recess which frees its collar.
  • FIG. 1 shows a schematic side view of a braking device according to the invention
  • FIG. 2 shows a further side view in the direction of arrow A of FIG. 1, with a wall of the housing frame and the braking devices being removed
  • FIG. 3 shows a schematic top view with the collecting plate removed
  • FIG 4 shows a part of the section along the line IV-IV of FIG. 3 on an enlarged scale
  • FIG. 5 shows a section along the line VV of FIG. 4 and FIG. 6 the stop of the roller its assembly.
  • the braking device has a rail 2 provided at its upper end with a collecting plate 1, which is displaceable in its longitudinal direction with respect to a housing frame 3 and is made of steel.
  • the rail 2 is designed as a double rail and is created by connecting two T-rails.
  • the foot part of each T-rail each forms a profile part 5,5 ', the two opposite surfaces 6,7 of which are surrounded by a braking device 8 or 8' in a manner described in more detail below.
  • the braking device 8 which is connected to the housing frame 3, i. H. is stationary, can be seen in more detail in FIG. 4.
  • the brake pad 11 can interact with the surface 7 of the profile part 5.
  • a free roller 12 is provided on the other surface 6, which carries a slightly protruding collar 13 with a knurled surface in the middle and lies between the surface 6 of the rail 2 on the one hand and a leaf spring 14 on the other.
  • the leaf spring 14 is composed of two individual springs 15, 16 and is held at its upper or lower end in holders 17, 18 rotatable with respect to the frame part 9 in such a way that the spring 14 can be displaced in its longitudinal direction with respect to the holders 17, 18.
  • the upper bracket 18 of the spring 14 is further away from the profile part 5 of the rail 2 than the lower bracket 17, so that the leaf spring 14 extends obliquely upwards and a wedge-shaped space between the spring 14 and profile part 5 of the rail 2 arises.
  • the free roller 12 lies in the upper part of this space, the knurled collar 13 being free in a groove 19 of the single spring 15 running from top to bottom.
  • a stop 20, the function of which is explained below, is designed as a brass bolt with a circumferential recess 21, which is firmly fitted into the frame part at the lower end of the wedge-shaped space.
  • the profile part 5 is thus pressed against the brake shoe 10 or its brake pad 11 because of the force N exerted by the roller 12.
  • the car or the counterweight are therefore braked until the rail 2 finally comes to a standstill.
  • the rail 2, the roller 12 and the spring 14 are made of steel, the roller 12 being hardened at least on the surface, so that it reliably engages in the profiled surface 6 with the knurling of the collar 13.
  • material wear occurs, primarily on the brake lining, on the individual spring 15 and on the profile surface 6.
  • the brass stop 20 is provided to compensate for this wear. Since the roller rolls on the stop, abrasion also occurs on the stop, so that over time the roller 12 reaches a lower position in which the spring force is higher and counteracts the wear of the brake pad.
  • the brake pad can also be made of a material other than brass; the same applies analogously to the other materials used, as long as the material is selected to be functional.
  • Fig. 1 which shows the braking device in the starting position, also shows a safety switch 22 which can be depressed by the rail 2 and blocks the elevator control as long as the device is not in the starting position.
  • two profile parts 5, 5 'of the rail 2 are each assigned a braking device 8, 8' of the embodiment described in more detail above in a realized embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP83890114A 1982-07-06 1983-07-06 Bremsvorrichtung für Aufzüge Expired EP0099352B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0261482A AT374767B (de) 1982-07-06 1982-07-06 Bremsvorrichtung fuer aufzuege
AT2614/82 1982-07-06

Publications (3)

Publication Number Publication Date
EP0099352A2 EP0099352A2 (de) 1984-01-25
EP0099352A3 EP0099352A3 (en) 1985-05-15
EP0099352B1 true EP0099352B1 (de) 1987-09-09

Family

ID=3537404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890114A Expired EP0099352B1 (de) 1982-07-06 1983-07-06 Bremsvorrichtung für Aufzüge

Country Status (13)

Country Link
US (1) US4512444A (es)
EP (1) EP0099352B1 (es)
JP (1) JPS5936081A (es)
AT (1) AT374767B (es)
AU (1) AU553011B2 (es)
BR (1) BR8303596A (es)
CA (1) CA1197793A (es)
DE (1) DE3373458D1 (es)
ES (1) ES8407453A1 (es)
FI (1) FI73652C (es)
GB (1) GB2124175B (es)
IN (1) IN159861B (es)
ZA (1) ZA834850B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689113A1 (fr) * 1992-03-26 1993-10-01 Prudhomme Dominique Dispositif d'arrêt d'urgence ou parachute d'une cabine d'ascenseur comportant des moyens d'amortissement intégrés.
WO1999025634A1 (en) * 1997-11-17 1999-05-27 Shapovalov Vladimir Vladimirov Wedge-shaped converter of force
JP4301837B2 (ja) * 2002-05-21 2009-07-22 三菱電機株式会社 エレベータの緩衝装置
ATE362891T1 (de) * 2003-10-02 2007-06-15 Otis Elevator Co Sicherheitsvorrichtung für wartungspersonal am kabinendach
FI119808B (fi) * 2007-12-17 2009-03-31 Kone Corp Hissin puskurijärjestely
FI20080444L (fi) * 2008-07-24 2010-01-25 Kone Corp Hissijärjestely, menetelmä ja turvarakenne
ES2489968B1 (es) * 2013-02-26 2015-11-12 Orona, S. Coop. Dispositivo de seguridad para ascensores y ascensor que comprende dicho dispositivo
US10421640B2 (en) * 2017-02-17 2019-09-24 Otis Elevator Company Elevator braking device including buckling beams
CN113800354A (zh) * 2021-09-01 2021-12-17 江苏中宝龙工程机械有限公司 光电式施工升降机障碍物拦截装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE195584C (es) *
US1581458A (en) * 1924-07-11 1926-04-20 Otis Elevator Co Elevator safety appliance
DE498917C (de) * 1928-09-20 1930-05-30 Adolf Zaiser Maschf Gleitfangvorrichtung fuer Aufzuege
US1803762A (en) * 1929-07-05 1931-05-05 Otis Elevator Co Elevator safety apparatus
SU197708A1 (ru) * 1966-03-23 1973-01-08 ВСЕСОЮЗНАЯ IШ.-уул -•'УУк''ГГ<(.?>&'?3! tHihl^it-Abfr:'.- EUi.'tiБ^'-|€:ЛИО^ТКА (ТЕРЛ10
CH447527A (de) * 1967-03-16 1967-11-30 Aufzuege Ag Schaffhausen Gleitfangvorrichtung an Aufzügen
AT292963B (de) * 1968-11-08 1971-09-27 Stefan Sowitsch & Co Ing Gleitfangvorrichtung für Fahrstühle
DE2440094C3 (de) * 1974-08-21 1980-08-28 Thyssen Aufzuege Gmbh, 7000 Stuttgart Aufzugpuffer
DE2604157A1 (de) * 1976-02-04 1977-08-11 Aufzugswerk Gall & Heckelmann Bremsfangvorrichtung
US4069897A (en) * 1976-08-26 1978-01-24 Westinghouse Electric Corporation Elevator system
JPS548524U (es) * 1977-06-16 1979-01-20
DE2814114A1 (de) * 1978-04-01 1979-10-04 Guenter Grigoleit Einrichtung zum abbremsen der aufzugsfahrkoerbe o.dgl. zur vermeidung des harten aufsetzens auf die unteren fahrbegrenzungen

Also Published As

Publication number Publication date
ES8407453A1 (es) 1984-06-16
AU1652483A (en) 1984-01-12
GB8318178D0 (en) 1983-08-03
FI832470L (fi) 1984-01-07
BR8303596A (pt) 1984-02-14
EP0099352A3 (en) 1985-05-15
AU553011B2 (en) 1986-06-26
FI73652B (fi) 1987-07-31
FI832470A0 (fi) 1983-07-05
IN159861B (es) 1987-06-13
US4512444A (en) 1985-04-23
GB2124175A (en) 1984-02-15
FI73652C (fi) 1987-11-09
DE3373458D1 (en) 1987-10-15
EP0099352A2 (de) 1984-01-25
CA1197793A (en) 1985-12-10
JPH0338189B2 (es) 1991-06-07
GB2124175B (en) 1985-07-24
JPS5936081A (ja) 1984-02-28
AT374767B (de) 1984-05-25
ATA261482A (de) 1983-10-15
ZA834850B (en) 1984-04-25

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