EP0773181B1 - Antifall-Sicherheitseinrichtung für einen beweglichen Körper - Google Patents

Antifall-Sicherheitseinrichtung für einen beweglichen Körper Download PDF

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Publication number
EP0773181B1
EP0773181B1 EP96402350A EP96402350A EP0773181B1 EP 0773181 B1 EP0773181 B1 EP 0773181B1 EP 96402350 A EP96402350 A EP 96402350A EP 96402350 A EP96402350 A EP 96402350A EP 0773181 B1 EP0773181 B1 EP 0773181B1
Authority
EP
European Patent Office
Prior art keywords
housing
roller
rotating member
constituted
movable body
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
EP96402350A
Other languages
English (en)
French (fr)
Other versions
EP0773181A1 (de
Inventor
Joselyne Daroux-Aguanno
Jean-Marie Penin
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.)
Inec
Original Assignee
Inec
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 Inec filed Critical Inec
Publication of EP0773181A1 publication Critical patent/EP0773181A1/de
Application granted granted Critical
Publication of EP0773181B1 publication Critical patent/EP0773181B1/de
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
    • 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 device designed to automatically block the movement of accidentally falling mobile body.
  • the invention applies in particular to stopping the fall of a movable, tilting or vertical movement, without it being anything limiting because the invention can find applications in many other areas.
  • a fall arrest system that includes a tension spring kept in balance by the tension of the suspension chains. Breaking accidental of a chain controls the pivoting, under the action of a torsion spring, a cleat which engages in one of the holes presented by the slide guide channels.
  • Such a system has the disadvantage to be imposing, constraining in dimensions, and ensure blocking only at the rate of the pitch of the holes arranged in the slide.
  • a progressive safety device used to stop a cabin or counterweight elevator.
  • This device includes a housing fixed to the cabin or counterweight and receiving a fixed guide rail.
  • the housing has a brake pad on one side of the rail and, on the other side, a set of springs defining a narrowed area with the rail.
  • a roller is placed at inside the narrowed area and is connected to a regulator linked to the cabin or counterweight.
  • the regulator pulls the roller upwards from the narrowed area pushing it between the spring and the rail, which press the rail against the brake shoe. Due to spring elasticity, immobilization due to the action of the device is only progressive.
  • This known device ensuring only one progressive immobilization, cannot be used for applications where security requires immediate immobilization.
  • this device requires a regulator which complicates the realization and significantly increases its cost.
  • the object of the present invention is to remedy the drawbacks presented by the devices known above mentioned and it proposes for this purpose a fall protection system which, while of simple design and implementation, of a weak cost and reduced footprint, is of great reliability by ensuring an immediate and effective blocking of accidental fall of the moving body.
  • the security device anti-fall is characterized in that it comprises two elements with relative sliding movement one by relation to the other, one of these elements being fixed and the other being integral with the movable body, these elements comprising a first element and a second element in form of housing having an interior housing arranged opposite said first element and containing at minus a rotating clamping member, the said housing presenting on its height a part of greater width in which the rotating clamping member is held by elastic retaining means and a part of reduced width in which the rotating member of tightening engages by inertia, against the action of the said retaining means, in the event of a sudden fall of said body, the rotating clamping member pressing said first element ensuring the immobilization of said body.
  • the first element can be fixed and the second element is integral with the body mobile. Conversely, the first element can move by being linked to the movable body, the second element being fixed.
  • the first element can be housed in a vertical slot in the second element and slide into this slot, tightening by triggering of the rotating member pressing the first element against the wall of the slot.
  • the first element can be fixed, being for example constituted by a strap. It can also be rigid by being constituted for example by a rail.
  • the first element can also be a tube.
  • the interior housing of the second element may include radially several rotating clamping members which are evenly distributed around the periphery of the tube to simultaneously ensure effective clamping.
  • the organ tightening turn consists of a roller which, rest, is maintained in the bottom of the enlarged part of the housing and in contact by its periphery with the first element under the action of a calibrated spring.
  • the inertia of the clamping roller causes, against the action of the calibrated spring, the engagement of the roller in the narrowed part of the housing and the immediate stop of the relative sliding movement of the first and second elements.
  • a strap anchored at its upper end to a fixed part 2 and along which can slide vertically a housing 3 secured to a movable element such as a door (not shown in drawing).
  • Strap 1 slides in a slot internal vertical 4 of the housing 3, so that one of the sides of strap 1 either facing part full vertical of the housing 3, while part of the opposite face of the strap 1 is opposite a recessed internal housing 5 of the housing 3.
  • the housing 5 is limited by lower 6 and upper 7 walls horizontal and, opposite the strap 1, by a vertical bottom wall 8 continuing with a inclined upper wall 9 approaching the strap 1.
  • a roller 10 is placed inside the housing 5 so that, in the rest position (as shown in Figure 1), this roller 10 rests on the lower wall 6.
  • a calibrated spring 11 presses on the roller 10 to hold it against the lower wall 6 and against the strap 1.
  • the device has been described by way of example as comprising a housing wedging element sliding along a strap fixed, but without departing from the invention, one could provide a fixed box inside which slides a movable strap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Control And Safety Of Cranes (AREA)
  • Elevator Door Apparatuses (AREA)
  • Telephone Function (AREA)
  • Details Of Aerials (AREA)

Claims (10)

  1. Sicherheitsvorrichtung zum Stoppen des unbeabsichtigten Falls eines beweglichen Körpers, die zwei Elemente (1, 3) zur relativen Gleitbewegung zueinander umfaßt, wobei eines dieser Elemente ortsfest und das andere einstückig mit dem besagten beweglichen Körper ist, wobei diese Elemente ein erstes Element (1) und ein zweites gehäuseförmiges Element (3), das eine dem besagten ersten Element (1) gegenüber angeordnete und mindestens ein sich drehendes Klemmglied (10) enthaltende Innenaufnahme (5) aufweist, umfassen, wobei die besagte Aufnahme (5) über ihre Höhe einen breiteren Teil, in dem das sich drehende Klemmglied (10) unter normalen Funktionsbedingungen aufgenommen wird, und einen schmaleren Teil aufweist, dadurch gekennzeichnet, daß das sich drehende Klemmglied (10) im Fall einer plötzlichen Verlagerung des besagten Körpers durch Trägheit in den schmaleren Teil einfällt, wobei das sich drehende Klemmglied (10) das erste Element (1) drückt und dadurch das Anhalten des besagten Körpers sicherstellt.
  2. Vorrichtung nach Anspruch 1, gekennzeichnet durch ein elastisches Haltemittel (11), das unter normalen Funktionsbedingungen das sich drehende Klemmglied (10) in der besagten Innenaufnahme (5) hält und das unter der Tragheitswirkung des sich drehenden Gliedes (10) im Fall einer plötzlichen Verlagerung weicht.
  3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das erste Element (1) ortsfest ist und das zweite, gehäuseförmige Element (3) einstückig mit dem beweglichen Körper ist.
  4. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das zweite, gehäuseförmige Element (3) ortsfest ist, wobei das erste Element (1) einstückig mit dem beweglichen Körper ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das besagte erste Element (1) aus einem nachgiebigen Element wie beispielsweise einem Gurt besteht.
  6. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das besagte erste Element (1) aus einem starren Element wie beispielsweise einer Schiene besteht.
  7. Vorrichtung nach Anspruch 5 oder Anspruch 6, dadurch gekennzeichnet, daß das besagte erste Element (1) aus einem Rohr besteht, wobei die besagte Aufnahme (5) des zweiten Elements (3) mehrere sich drehende Klemmglieder (10) aufweist, die gleichmäßig um das besagte erste Element (1) verteilt sind.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das besagte sich drehende Klemmglied (10) aus einer Rolle besteht, die sich mit ihrem Umfang an dem ersten Element (1) abstützt.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das besagte elastische Haltemittel (11) aus einer geeichten Feder besteht, die auf die Rolle (10) wirkt, um diese einerseits in dem breiteren Teil der Aufnahme (5) zu halten und um andererseits die Rolle (10) an das erste Element (1) anzulegen.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die besagte Aufnahme (5) dem besagten ersten Element (1) gegenüberliegend eine Wand aufweist, die einen senkrechten Teil (8), gefolgt von einem in Richtung der besagten Durchführung (4) geneigten Teil (9) aufweist.
EP96402350A 1995-11-07 1996-11-06 Antifall-Sicherheitseinrichtung für einen beweglichen Körper Expired - Lifetime EP0773181B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513126 1995-11-07
FR9513126A FR2740854B1 (fr) 1995-11-07 1995-11-07 Dispositif de securite antichute pour un corps mobile

Publications (2)

Publication Number Publication Date
EP0773181A1 EP0773181A1 (de) 1997-05-14
EP0773181B1 true EP0773181B1 (de) 2000-08-02

Family

ID=9484289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402350A Expired - Lifetime EP0773181B1 (de) 1995-11-07 1996-11-06 Antifall-Sicherheitseinrichtung für einen beweglichen Körper

Country Status (4)

Country Link
EP (1) EP0773181B1 (de)
AT (1) ATE195111T1 (de)
DE (1) DE69609583T2 (de)
FR (1) FR2740854B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7097003B2 (en) * 2003-07-21 2006-08-29 The Peelle Company Ltd. Elevator landing door broken chain safety device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897920A (en) * 1958-01-28 1959-08-04 Dresser Ind Emergency brake for elevator cars
FR1599823A (de) * 1968-11-08 1970-07-20
US4333549A (en) * 1980-06-25 1982-06-08 Otis Elevator Company Car blocking apparatus
AT376952B (de) 1983-03-21 1985-01-25 Otis Elevator Co Bremsfangvorrichtung
FR2702464B1 (fr) * 1993-03-10 1995-06-30 Otis Elevator Co Parachute de cabine d'ascenseur a reglage instantane et a autocentrage.

Also Published As

Publication number Publication date
ATE195111T1 (de) 2000-08-15
EP0773181A1 (de) 1997-05-14
DE69609583D1 (de) 2000-09-07
FR2740854A1 (fr) 1997-05-09
FR2740854B1 (fr) 1998-01-09
DE69609583T2 (de) 2001-03-29

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