EP2527009B1 - Curseur antichute - Google Patents

Curseur antichute Download PDF

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Publication number
EP2527009B1
EP2527009B1 EP12168601.8A EP12168601A EP2527009B1 EP 2527009 B1 EP2527009 B1 EP 2527009B1 EP 12168601 A EP12168601 A EP 12168601A EP 2527009 B1 EP2527009 B1 EP 2527009B1
Authority
EP
European Patent Office
Prior art keywords
fall protection
fall
runner
protection runner
rail
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.)
Active
Application number
EP12168601.8A
Other languages
German (de)
English (en)
Other versions
EP2527009A2 (fr
EP2527009A3 (fr
Inventor
Klaus Alm
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.)
Lorenz Hasenbach & Co KG GmbH
Original Assignee
Lorenz Hasenbach & Co KG GmbH
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 Lorenz Hasenbach & Co KG GmbH filed Critical Lorenz Hasenbach & Co KG GmbH
Publication of EP2527009A2 publication Critical patent/EP2527009A2/fr
Publication of EP2527009A3 publication Critical patent/EP2527009A3/fr
Application granted granted Critical
Publication of EP2527009B1 publication Critical patent/EP2527009B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0081—Equipment which can travel along the length of a lifeline, e.g. travelers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/005—Vertical lifelines
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/0062—Rail-form lifelines for permanent installation

Definitions

  • the invention relates to a fall arrester for mounting on a fall arrest rail, wherein the fall arrester has a stop device which is adapted to stop the fall arrester in the event of a fall of a coupled to the fall arrester person, with an independent of the stop device braking device is provided which the fall arrester when a predefined and / or predefinable fall speed of the fall protection rotor is exceeded and the braking device has at least one rolling body, in particular a wheel or a roller, which is intended to unroll on the fall protection rail, for arrangement on a fall protection rail, the fall protection rotor having a stop device , which is adapted to stop the fall protection runner in the event of a fall of a coupled to the fall arrester runner.
  • the invention also relates to fall arresters having a rolling body, in particular a wheel or a roller, which is intended to unroll on a fall protection rail and which is part of a stop and / or brake device.
  • Fall protection runners are usually required for ladders or crampons to secure an ascending person against a fall.
  • a fall protection rail extending essentially over the length of the riser is installed, to which the fall protection runner is suspended and runs along with the ascending person for protection.
  • the fall protection runner is usually connected to a safety harness, which is worn by the person to be secured.
  • a fall arrester with a stop device and a brake device independent therefrom known.
  • the brake device brakes the fall protection rotor and stops it.
  • the braking device is designed centrifugally controlled.
  • a fall arrest belt can be coupled to the stop device, and furthermore the fall protection runner can be used not only on a cable but also on a carrier, a tube or any vertically elongate carrier element.
  • a disadvantage of this known fall protection rotor proves that a rigid brake system is used, the centrifugal swing with appropriate fall speed and beat against associated attacks, whereby the rotational movement of the wheels is blocked. The resulting friction on the rope is constant regardless of the falling speed and then slows down the fall arrester.
  • the braking device is designed as a pinch roller, which is received in a tapering at an acute angle to the locking rail terminal levels. In a downward movement, the pinch roller is transferred to the clamping position and the fall arrester stopped.
  • a rolling on the safety rail wheel is provided, which triggers a brake or lock from a certain rotational speed. By means of this pinch roller or the pawl, an abrupt blocking action or deceleration of the fall arrester is accomplished.
  • a fall protection runner which has a base body, which comprises guide means for embracing a fall arrest rail.
  • the fall protection rotor has a brake element, which is designed as a clamping element and is pivotally mounted in the base body.
  • the brake element can be pivoted between a release position and a locking position, wherein the fall protection rotor is movable in the release position along the fall arrest rail and locked in the locking position on the fall arrest rail.
  • a lever is formed, which has at its outboard end a receptacle for securing a snap hook. About the snap hook the fall protection runner with the safety harness is connected, which is worn by the person to be secured.
  • a fall arrester with speed-dependent clutch which may be a centrifugal clutch. It is provided a first wheel, which rolls along the fall arrest rail. In the first wheel, a centrifugal clutch is arranged, which produces a frictional and / or positive connection between the first wheel and a second wheel under the influence of a Zentripedalkraft against the force of a spring means when the rotational speed of the first wheel exceeds a predetermined value. In this case, the first wheel takes with the second wheel, so that when the centrifugal clutch is engaged, the second wheel rotates with the first wheel and pivoted in this way a bolt in a locking position.
  • the invention is based on the object to further develop a fall arrester with the features mentioned in that a varying with the falling speed of the fall arrester braking force of the braking device is provided.
  • the braking device has an eccentric, which occurs during a braking friction with the fall arrester rail in contact.
  • the braking force exerted by the braking device on the drop rail varies with the fall speed of the fall arrester, so that the strength of the required braking pulse can be varied and continuously increased until the stop device is activated, since the fall arrester now slower than the tethered weight emotional.
  • Both systems, the stopping device as well as the braking device are now in use and braking more and more. Only after a short-term relief of the fall protection rotor, for example, by the Aufwippen the tailed weight, the brake device is released again.
  • the fall arrester is equipped with a rolling body, which is intended to unroll on a fall arrest rail and having a profile for draining water.
  • the rolling body which is intended to roll on a fall protection rail, has an outer wear layer which is supported by a color-different inner part, in particular a color-different inner layer.
  • the brake device on an eccentric which occurs during a braking friction with a fall arrest rail in contact.
  • the braking device is controlled by centrifugal force educated.
  • a coupling device in particular a centrifugal clutch, can be provided in an advantageous manner, which rotationally couples the eccentric to a rolling element rolling on a fall protection rail when a predetermined and / or predefinable falling speed of the fall protection rotor is exceeded.
  • the fall protection runner on a rolling body such as a wheel or a roller, which rolls on the fall arrest rail.
  • Such a design has the advantage that - for example, by utilizing centrifugal forces - a direct relationship between the rotational speed of the rolling body and the fall speed is available to activate the braking device, if necessary.
  • an advantageous embodiment of a fall arrestor according to the invention includes two independent devices or two devices that interact only indirectly with one another.
  • the additional, independent braking device - unlike the stop - is not designed to stop the fall arrester completely in case of need, but only to the fall protection runner relative to the falling To decelerate the person slightly to indirectly activate the stop device.
  • the fall arrester according to the invention has a coupling point, for example in the form of an eyelet into which a carabiner connected to a safety harness can be suspended, for the direct or indirect coupling of a safety harness.
  • the stop device is either in a release position or a stop position as a function of the direction and / or the amount of a force acting on the coupling point.
  • the coupling point is located on a lever which is mechanically coupled to the stop device, wherein the stop device is dependent on the position of the lever.
  • the stop device is switched to the release position when the free end of the lever facing upward.
  • the person to be secured crashes so unhappily that it falls at the same or approximately the same speed as the fall protection runner.
  • This can occur in particular if the person to be secured does not fall completely free, but their case, similar to the case of the fall protection rotor, is braked in the same way by the friction on the fall protection rail, by friction on surrounding objects.
  • the stop device is not switched to the stop position because of a lack of relative speed between fall arrester and the person.
  • the lever-adjusting forces which has a lever with a coupling point, would not act in such a case, the lever-adjusting forces.
  • a triggering of the stop device takes place only when it acts on a horizontal force which is greater than a spring force also acting on the stop device.
  • the braking device brakes the fall arrester so that a relative movement between the fall arrester and the falling coupled person is effected, which is so large that the associated direction and / or amount change of the force acting on the coupling point - directly or indirectly - the stop device switches to the stop position.
  • the brake device it is not necessary, but possible, for the brake device to cause the fall arrestor to stop completely. Rather, it is sufficient that the braking device causes only a - in comparison to the complete stop minor - deceleration of the fall arrester to indirectly - namely by causing a difference between the falling speeds of fall arrester and person to be secured - causes a release of the stop device.
  • the rolling body or a tire of the rolling body has a profile for draining off water. This ensures that a sliding of the rolling body along the fall protection rail is at least so far avoided that a rolling outweighs and thus the basic function of the rolling body is ensured.
  • the rolling body and / or a tire of the rolling body has an outer wear layer which is supported by and / or adjacent to a color-different inner part, in particular a color-different inner layer ,
  • a color-different inner part in particular a color-different inner layer
  • Such an embodiment has the very special advantage that it is visually easily recognizable to the user whether the rolling body or the tire of the rolling body has already worn beyond an admissible extent or not. As long as the rolling surface of the rolling body has its original color, this is not the case. However, as soon as the color-different inner part is visible in the radial direction, the rolling body or its tire must be replaced.
  • the rolling body can be provided with a tire.
  • Such an embodiment has the particular advantage that the maintenance of such a fall arrester is considerably facilitated. This is due to the fact that in a wear of the rolling layer not the entire rolling body - possibly together with an axle - removed and replaced, but only the tire.
  • the rolling body, in particular the wheel be replaced.
  • a higher level of safety can be achieved because the part of the rolling body carrying the tire can be designed with completely different specific properties, for example in terms of strength and / or elasticity, than the tire.
  • the rolling body has a plurality of mutually parallel and / or directly juxtaposed tires. This ensures that even if one of the tires is damaged, the remaining tire can maintain the function of the rolling body.
  • the eccentric and / or the rolling body are arranged on a deflectable against the force of a spring device shaft.
  • the spring device may be, for example, an elastomeric spring. This ensures that in the case of activation of the brake device does not damage the fall arrestor.
  • the particular caused by an eccentric radial forces acting on the Exzenterlagerung are very large and lead to damage if not enough sufficient dimensioning of the eccentric shaft and their storage. According to the invention can be effectively avoided by providing a spring device on the one hand damage and on the other hand, the dimensioning of the eccentric shaft and its storage be chosen easier and cheaper.
  • such a design has the very special advantage that by means of the spring device wear of the eccentric and / or the rolling body - at least as far as the spring path reaches - can be compensated.
  • Another advantage of the spring device is that different thicknesses of fall protection rail can be compensated.
  • Particularly advantageous is a fall protection device with a fall arrest rail and a fall arrester according to the invention.
  • a fall arrester 1 having a stop device 2 and a brake device 3 is shown.
  • the fall protection rotor 1 is latched in such a fall protection rail 4, that it is guided guided in the longitudinal direction of the fall protection rail.
  • the fall protection rotor 1 has a coupling point 5 for coupling a safety belt 6.
  • the stop device 2 is designed such that it switches either in a release position or in a stop position in dependence on the direction and / or the amount of force acting on the coupling point 5. Concretely, the stop device 2 is in its release position when the free end of a lever 7, on which the coupling point 5 is arranged, facing upward. However, when the free end of the lever 7 faces down, the stopper 2 is switched to the stop position.
  • a lever 7, on which the coupling point 5 is arranged, facing upward.
  • the stopper 2 is switched to the stop position.
  • the brake device 3 is activated by exceeding a predetermined fall speed. This brakes the fall arrester 1 so that a relative movement between the fall arrester 1 and the falling coupled person 8 is effected.
  • the person 8 is therefore faster than the something - not fully retracted fall arrester 1 and therefore pulls the free end of the lever 7 down to the stop position of the stop device 2 Fig. 2 shown.
  • the stop device 2 then stops the fall arrester 1 completely.
  • Fig. 3 shows a fall arrester 1 according to the invention with a housing 27 and guide rollers 9, which are intended to roll on a fall arrest rail that leads the fall arrester 1.
  • the fall arrester 1 has a stop device 2 with a clamping jaw 10.
  • the jaw 10 is rotatably mounted on a shaft 11.
  • the jaw 10 is formed so as to frictionally contact the fall protection rail when a lever 7 having a coupling point 5 is pressed down.
  • the fall arrester 1 has an independent of the stop device 2 braking device 3 with an eccentric 12.
  • the eccentric 12 is intended, when a predetermined falling speed of the fall arrester is exceeded, to rubingly come into contact with the fall arrest rail and to decelerate the fall arrester 1 by friction and clamping action-at least somewhat-preferably not completely.
  • the eccentric 12 is coupled by means of a coupling device, namely by means of a centrifugal clutch, with a rolling body, which rolls on the fall protection rail when the fall arrester 1 is moved along the fall arrest rail.
  • the centrifugal clutch and the rolling body are in Fig. 3 not to be seen.
  • Fig. 4 shows a sectional view through the in Fig. 3
  • the eccentric 12 is rotatable by means of a centrifugal clutch 13 via a shaft 14 with a rolling body 15 connectable.
  • the rolling body 15 is rotatably connected to the shaft 14.
  • centrifugal elements 16 are connected, which are forced at a predetermined rotational speed by centrifugal force against the force of a spring to the outside and engage in projections of a sleeve 17 and so a rotationally fixed connection between the shaft 14 and the sleeve 17, the in turn rotatably connected to the eccentric 12, produce.
  • the shaft 14 is mounted deflectable against the force of a spring device 18. This has the advantage on the one hand that forces, in particular clamping forces acting perpendicular to the direction of longitudinal extension of the shaft 14, can be absorbed, and that wear of the rolling body 15 is compensated.
  • a fall protection rail 19 is located.
  • Fig. 5 shows a rolling body 15 for a fall arrester according to the invention.
  • the rolling body 15 has a wheel 20.
  • the wheel 20 carries first and second tires 22, 23.
  • the first tire 22 and the second tire 23 are each provided with a profile to the profile 24 for draining water.
  • the first tire 22 and the second tire 23 each have an outer wear layer 25, which differs in color from an inner layer 26. In this way, the user looking from a radial view of the rolling body 15, easily and reliably recognize whether the previous wear is still acceptable or one or both of the tires 22, 23 must be replaced.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)

Claims (11)

  1. Charriot antichute (1) destiné à être disposé sur un rail antichute (4), le charriot antichute (1) présentant un dispositif d'arrêt (2) qui est réalisé pour retenir le charriot antichute (1) dans le cas d'une chute d'une personne (8) attachée au charriot antichute (1), un dispositif de freinage (3) indépendant du dispositif d'arrêt (2) étant prévu, lequel, en cas de dépassement d'une vitesse de chute prédéfinie et/ou prédéfinissable du charriot antichute (1), freine le charriot antichute (1) et le dispositif de freinage (3) présentant au moins un corps de roulement (15), en particulier une roue (20) ou un rouleau qui est prévu (e) pour rouler sur le rail antichute (4), caractérisé en ce que le dispositif de freinage (3) présente un excentrique (12) qui entre en contact avec le rail antichute (4) par friction pendant une opération de freinage.
  2. Charriot antichute (1) selon la revendication 1, caractérisé en ce que le charriot antichute (1) présente un point d'accouplement (5) pour l'accouplement direct ou indirect d'un harnais antichute (6) et en ce que le dispositif d'arrêt (2), en fonction de la direction et/ou de l'intensité d'une force agissant sur le point d'accouplement, se trouve soit dans une position de libération soit dans une position de maintien.
  3. Charriot antichute (1) selon la revendication 1 ou 2, caractérisé en ce que le dispositif de freinage (3) freine le charriot antichute (1) en cas de dépassement d'une vitesse de chute prédéfinie ou prédéfinissable du charriot antichute (1) avec une force de freinage croissante, de telle sorte que le dispositif d'arrêt soit activé.
  4. Charriot antichute (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le dispositif de freinage (3) est commandé par la force centrifuge.
  5. Charriot antichute (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de roulement (15) est pourvu d'au moins un ou plusieurs pneus (22, 23), plusieurs pneus (22, 23) étant disposés parallèlement ou directement les uns à côté des autres.
  6. Charriot antichute (1) selon la revendication 5, caractérisé en ce que
    a. le pneu (22, 23) présente un profil (24) pour évacuer l'eau et/ou en ce que
    b. le pneu (22, 23) présente une couche d'usure extérieure (25) qui est portée par une partie intérieure de couleur différente, en particulier par une couche intérieure de couleur différente (26), ou est adjacente à une partie intérieure de couleur différente.
  7. Charriot antichute (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif d'accouplement, en particulier un accouplement à force centrifuge (13) est prévu, lequel accouple l'excentrique (12) en rotation avec le corps de roulement (15) roulant sur un rail antichute (4) lors d'un dépassement d'une vitesse de chute prédéfinie ou prédéfinissable du charriot antichute (1).
  8. Charriot antichute (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'excentrique (12) et/ou le corps de roulement (15) sont disposés sur un arbre (14) pouvant être dévié à l'encontre de la force d'un dispositif de ressort (18), en particulier d'un ressort élastomère.
  9. Charriot antichute (1) selon l'une quelconque des revendications précédentes 1 à 4, caractérisé en ce que le corps de roulement (15) présente un profil (24) pour évacuer l'eau.
  10. Charriot antichute (1) selon l'une quelconque des revendications précédentes 1 à 4, caractérisé en ce que le corps de roulement (15) présente une couche d'usure extérieure (25) qui est portée par une partie intérieure de couleur différente, en particulier une couche intérieure de couleur différente (26) ou est adjacente à une partie intérieure de couleur différente.
  11. Dispositif antichute comprenant un rail antichute (4) et un charriot antichute (1) selon l'une quelconque des revendications 1 à 10.
EP12168601.8A 2011-05-24 2012-05-21 Curseur antichute Active EP2527009B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110050598 DE102011050598B4 (de) 2011-05-24 2011-05-24 Fallschutzläufer

Publications (3)

Publication Number Publication Date
EP2527009A2 EP2527009A2 (fr) 2012-11-28
EP2527009A3 EP2527009A3 (fr) 2013-12-25
EP2527009B1 true EP2527009B1 (fr) 2016-09-28

Family

ID=46146727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12168601.8A Active EP2527009B1 (fr) 2011-05-24 2012-05-21 Curseur antichute

Country Status (4)

Country Link
EP (1) EP2527009B1 (fr)
DE (1) DE102011050598B4 (fr)
DK (1) DK2527009T3 (fr)
ES (1) ES2604141T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU229555U1 (ru) * 2024-03-27 2024-10-11 Кирилл Васильевич Перепелов Направляющая устройства для защиты человека от падения при подъеме и спуске на высотных объектах

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3000899B1 (fr) 2013-01-15 2015-06-26 Zedel Appareil de securite antichute et blocage sur corde
FR3000900B1 (fr) 2013-01-15 2015-02-27 Zedel Appareil de securite antichute sur corde avec fonction bloqueur
DE102015104455B4 (de) 2015-03-25 2020-11-19 Lorenz Hasenbach GmbH u. Co KG Fallschutzläufer und Sicherungssystem mit einem derartigen Fallschutzläufer
DE102016119575B4 (de) 2016-10-13 2020-11-05 Lorenz Hasenbach GmbH u. Co KG Fallschutzläufer und Sicherungssystem mit Fallschutzläufer
DE102016119576B4 (de) 2016-10-13 2020-11-05 Lorenz Hasenbach GmbH u. Co KG Fallschutzläufer und Sicherungssystem mit Fallschutzläufer
CN109098427B (zh) * 2018-08-03 2023-08-29 华西工程科技(深圳)股份有限公司 升降式脚手架坠落最大速度可控的防坠转轮
CN112144943B (zh) * 2020-09-30 2021-10-29 湖南双林机械设备有限公司 一种具有防坠落安全功能的电线杆
CN217025237U (zh) * 2022-03-04 2022-07-22 中际联合（北京）科技股份有限公司 升降设备

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Publication number Priority date Publication date Assignee Title
GB1400165A (en) * 1972-06-16 1975-07-16 Shires N F Safety devices for arresting a falling load
DE29619789U1 (de) * 1996-09-19 1997-01-30 Lorenz Hasenbach GmbH & Co KG, 65520 Bad Camberg Fallschutzläufer
US6161647A (en) * 1999-01-25 2000-12-19 Pitt-Des Moines, Inc. Fall arresting ladder safety device
DE102004019714A1 (de) * 2004-04-20 2005-11-17 Bornack Gmbh & Co. Kg Mitlaufendes Auffanggerät
FR2921563B1 (fr) * 2007-09-27 2014-09-05 Rodolphe Argoud Dispositif antichute destine a cooperer avec un support d'assurage rigide
DE202008015472U1 (de) * 2008-07-25 2010-04-08 Sperian Fall Protection Deutschland Gmbh & Co. Kg Elektronisch gesteuerte Fangeinrichtung für ein Steigschutzsystem
DE202008010819U1 (de) * 2008-08-05 2008-10-16 Skylotec Gmbh Auffanggerät mit geschwindigkeitsabhängiger Kupplung
DE202009014714U1 (de) * 2009-10-30 2010-01-07 Skylotec Gmbh Auffanggerät mit geschwindigkeitsabhängiger Kupplung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU229555U1 (ru) * 2024-03-27 2024-10-11 Кирилл Васильевич Перепелов Направляющая устройства для защиты человека от падения при подъеме и спуске на высотных объектах

Also Published As

Publication number Publication date
EP2527009A2 (fr) 2012-11-28
DE102011050598A1 (de) 2012-11-29
DE102011050598B4 (de) 2015-03-12
DK2527009T3 (da) 2017-01-16
ES2604141T3 (es) 2017-03-03
EP2527009A3 (fr) 2013-12-25

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