EP0859648B1 - Dispositif d'arret automatique de chute pour des personnels travaillant en hauteur - Google Patents

Dispositif d'arret automatique de chute pour des personnels travaillant en hauteur Download PDF

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Publication number
EP0859648B1
EP0859648B1 EP97933737A EP97933737A EP0859648B1 EP 0859648 B1 EP0859648 B1 EP 0859648B1 EP 97933737 A EP97933737 A EP 97933737A EP 97933737 A EP97933737 A EP 97933737A EP 0859648 B1 EP0859648 B1 EP 0859648B1
Authority
EP
European Patent Office
Prior art keywords
cam
clamping
roller
lever
sense
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
EP97933737A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0859648A1 (fr
Inventor
Guido Gortan
Maksimiljan Cencic
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.)
Tractel SAS
Original Assignee
Tractel SAS
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Filing date
Publication date
Application filed by Tractel SAS filed Critical Tractel SAS
Publication of EP0859648A1 publication Critical patent/EP0859648A1/fr
Application granted granted Critical
Publication of EP0859648B1 publication Critical patent/EP0859648B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention relates to a device personal fall protection and more in particular, a device designed to stop automatically the fall of a person working in height.
  • the patent of the United States of America No. 4923037 describes an anti-fall arrest device at automatic operation, mobile along a support vertical.
  • This device includes a mounted gear to rotate in its housing, which is articulated to the interior of an exterior dwelling and is constrained elastically in the direction applying the gear against the support passing through a vertical channel provided at the front of the exterior housing.
  • the gear wheel is rotated by its friction thereon. If the rate of descent of the device along the support reaches a predetermined value, the speed of corresponding rotation of the toothed wheel triggers a centrifugal clutch mechanism that stops rotation of the gear wheel.
  • the friction between the support and the immobilized gear wheel then causes the pivoting of the housing thereof in the direction which ensures the tightening of the support between the toothed wheel and the external housing and blocking the device on the support.
  • the system centrifugal clutch which acts as a trigger automatic clamping, is an expensive and fragile, sensitive to dust.
  • This device due to the lightness of the roller clamp which can go up along the ramp guidance due to jolts or vibrations, is poorly controlled operating sensitivity and is susceptible to erratic operations.
  • the object of the present invention is to realize an automatic fall arrest device avoiding the above mentioned disadvantages of known devices and having the advantages of simplicity, robustness and improved efficiency.
  • the stop device automatic fall which slides without operation additional on a belay support fixed at a point located above said device to which is connected the user or a load, is of the type comprising a clamping device for the belay support and a member detector of an acceleration or speed threshold of scrolling of the belay support relative to the device.
  • the organ detector consisting of a roller or a rotating member equivalent, and the clamping member being distinct
  • the detector member is mounted on the clamping member and drives it in the direction of tightening under the effect of a resistant torque of determined level opposing the rotation of the roller and partially joining the roller and the clamping member, said resistant torque being generated by a means fixed on the clamping member and acting from a determined speed threshold or of acceleration of the belay support in the device.
  • the means generating the resistant torque consists of a friction shoe, applied against the roller under the effect of a spring resting on the clamping member and generating a resistant torque increasing with the speed of the support in the device up to a threshold higher than a resistant torque cam antagonist.
  • the clamping member can be constituted by a self-locking pivoting cam with the support belay device, on which the detector roller is located so as to be in cooperative contact with the support for a determined position of the cam in the absence a tightening stress applied thereto, and so as to leave this contact as soon as the cam starts its clamping action.
  • the center of gravity of the cam is placed with respect to the axis of rotation thereof so as to request this cam, in association with its mass, in the direction of its loosening in the absence of a given acceleration of the device down, and at request the said cam in the opposite direction in the presence of such an acceleration, starting from a threshold of this, to initiate the clamping action.
  • the device comprises a load actuating lever cooperating so unidirectional with the cam by a stop, so this cam cannot be actuated by this lever only in the direction causing the tightening.
  • a connecting spring mounted on the hinge pin common to lever and cam has two ends one of which applies at a point in the housing of device and the other applies to the cam so the stress in rotation in the direction of loosening of so as to apply it constantly in contact with the lever in the absence of a positive action to immobilize this one in high position simultaneously with a phenomenon causing the cam to tighten.
  • the mass of the cam, associated with positioning of its center of gravity is calculated from so as to neutralize the action of the spring to operate a tightening movement under acceleration determined, down, of the entire device.
  • the actuation lever is configured and positioned so that it can activate or support the cam over its entire tightening stroke up to complete blocking of the rope.
  • the device automatic shutdown generally designated as 1 is intended for tightening a vertical belay rope 2 which crosses.
  • Rope 2 is attached at its end upper, and it is provided with a ballast (not shown) at its lower end.
  • the device 1 comprises a housing consisting of two side plates 3 (only one of which is visible in the drawing) connected by spacers 4, of a front wall 5 and a rear wall 6.
  • cam clamp 7 mounted to pivot around an axis horizontal 8 carried by the flanges 3.
  • cam 7 Towards its part front, cam 7 has an arcuate clamping surface 9 and it has, at its upper front part, a detection roller 10 mounted idly on a transverse axis 11 carried by the cam 7.
  • a bent lever 15, articulated in its part intermediate around axis 8, has an arm which protrudes through a slot 16 in the rear wall 6, while the end 17 of its other arm is used, in the high position of the lever 15 in abutment against the wall 6 (as shown in Figure 1), stop for the cam 7 in the release position.
  • roller 10 on the cam 7 is provided so that in this cam stop position against the lever 15, the roller 10 comes into contact with the rope 2.
  • Cam 7 is such that its center of gravity is placed relative to the axis of rotation 8 of so as to urge this cam in the direction of its loosening in the absence of a given acceleration of the device down, and to solicit this cam in the opposite direction by inertia in the presence of such a acceleration from a determined threshold thereof while neutralizing the action of the spring 14.
  • the arm of the lever 15 which crosses the slot 16 has at its end an opening 18 for hooking the carabiner (not shown) to a lanyard associated with a worker.
  • lever 15 does not control the displacement of the cam 7, by stop, only in the direction of Tightening. This avoids any untimely action by loosening by an awkward or untimely maneuver of this lever.
  • Cam 7, as indicated above, is in its loose position, pressing against the abutment part 17 of the lever 15, itself in abutment against the wall 6, under the combined effect of the mass of the cam and the spring 14.
  • the device 1 then slides freely along the safety rope 2, towards the up or down, depending on the displacement of the user, by rotating the roller 10.
  • a lever locking device 15 in position blocking constituted for example by a ratchet 19 articulated in 20 on the case and engaging the face rear of lever 15, keeps cam 7 in its rope locking position 2, doing so parking brake office.
  • the device housing includes a means opening (not shown in the drawing), such as the closed position of the case is locked by two separate organs, requiring the intervention of two successive voluntary operations to open this housing.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
EP97933737A 1996-07-16 1997-07-15 Dispositif d'arret automatique de chute pour des personnels travaillant en hauteur Expired - Lifetime EP0859648B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9608841A FR2751233B1 (fr) 1996-07-16 1996-07-16 Dispositif d'arret automatique de chute pour des personnels travaillant en hauteur
FR9608841 1996-07-16
PCT/FR1997/001305 WO1998002210A1 (fr) 1996-07-16 1997-07-15 Dispositif d'arrêt automatique de chute pour des personnels travaillant en hauteur

Publications (2)

Publication Number Publication Date
EP0859648A1 EP0859648A1 (fr) 1998-08-26
EP0859648B1 true EP0859648B1 (fr) 2003-06-25

Family

ID=9494070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97933737A Expired - Lifetime EP0859648B1 (fr) 1996-07-16 1997-07-15 Dispositif d'arret automatique de chute pour des personnels travaillant en hauteur

Country Status (13)

Country Link
US (1) US6056086A (pt)
EP (1) EP0859648B1 (pt)
JP (1) JP3262279B2 (pt)
CN (1) CN1100576C (pt)
AU (1) AU729685B2 (pt)
BR (1) BR9702343A (pt)
CA (1) CA2231722C (pt)
CZ (1) CZ292340B6 (pt)
DE (1) DE69723046T2 (pt)
ES (1) ES2202628T3 (pt)
FR (1) FR2751233B1 (pt)
PL (1) PL184120B1 (pt)
WO (1) WO1998002210A1 (pt)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2842113B1 (fr) * 2002-07-12 2004-09-24 Zedel Dispositif antichute suiveur pour corde fixe
FR2860982B1 (fr) * 2003-10-20 2006-01-20 Zedel Dispositif antichute a galet bloqueur
FR2889453B1 (fr) * 2005-08-04 2007-11-30 Emax Sarl Dispositif de securite de type assureur/descendeur
GB2441140B (en) * 2006-08-21 2008-12-31 Hugh Irving Banner Rope grab
DE202007019498U1 (de) * 2006-10-27 2013-01-11 Faszinatour Touristik - Training - Event Gmbh Sicherungseinrichtung
EP2237841B1 (de) * 2008-01-22 2018-06-20 AMOVA S.à.r.l Absturzsicherungsgerät mit seilantriebsmechanismus
CN101559267A (zh) * 2008-04-18 2009-10-21 陈锦鹏 一种防坠落设备及系统
DE102008033431B4 (de) * 2008-07-16 2010-03-04 Faszinatour Touristik - Training - Event Gmbh Anschlagelement für eine Sicherungseinrichtung
DE202008010819U1 (de) * 2008-08-05 2008-10-16 Skylotec Gmbh Auffanggerät mit geschwindigkeitsabhängiger Kupplung
FR2938771B1 (fr) * 2008-11-27 2010-12-31 Zedel Dispositif bloqueur a came pour l'assurage sur corde fixe
DE202009014714U1 (de) 2009-10-30 2010-01-07 Skylotec Gmbh Auffanggerät mit geschwindigkeitsabhängiger Kupplung
GB201019462D0 (en) * 2010-11-18 2010-12-29 Latchways Plc Rescue descender system
FR2970183B1 (fr) 2011-01-11 2014-11-21 Tractel Sas Dispositif d'arret automatique de chute pour travailleur en hauteur.
JP5766535B2 (ja) * 2011-07-27 2015-08-19 エス・デー・ケイ株式会社 墜落防止装置
ES2686285T3 (es) * 2011-09-05 2018-10-17 Ancsafe Ab Protección temporal frente a caídas
WO2013104139A1 (zh) * 2012-01-13 2013-07-18 He Shaodun 一种悬吊下降系统的绳索防倒装置
DE102012207223B3 (de) * 2012-04-30 2013-09-26 Bornack Gmbh & Co. Kg Sicherungsvorrichtung
US9132297B2 (en) * 2012-07-18 2015-09-15 D B Industries, Llc Rope grab
US9168402B2 (en) * 2012-07-18 2015-10-27 D B Industries, Llc Rope grab
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
US9623269B2 (en) * 2013-03-14 2017-04-18 Black Diamond Equipment, Ltd. Systems for assisted braking belay with a cam-clutch mechanism
GB2514155A (en) * 2013-05-15 2014-11-19 Spanset Inter Ag Fall arrest traveller
CN105339050A (zh) * 2013-06-28 2016-02-17 凯比特安全设备集团（澳大利亚）有限公司 防坠器
US10632332B2 (en) * 2015-01-28 2020-04-28 Bashlin Industries, Inc. Fall restriction device
CA2928081C (en) * 2015-04-24 2018-09-18 Buckingham Manufacturing Company, Inc. Cam assembly for use with pole climbing fall restriction device
US9874034B2 (en) * 2016-03-10 2018-01-23 Meyer Ostrobrod Anti-panic cable grab
US10946248B1 (en) 2017-02-28 2021-03-16 Buckingham Manufacturing Company, Inc. Adjustable body belt having D-rings/attachments
CN106841951B (zh) * 2017-03-09 2023-09-29 中国南方电网有限责任公司超高压输电公司梧州局 特高压直流输电线路绝缘子检测机器人高空防坠落装置
KR101897154B1 (ko) * 2017-05-26 2018-09-12 주식회사 코닥트 로프형 승강장치
GB201712177D0 (en) * 2017-07-28 2017-09-13 Heightec Group Ltd Fall arrest device
DE102018102325B4 (de) * 2018-02-01 2021-01-21 Bornack Gmbh & Co. Kg Sicherungsvorrichtung
CN108394784B (zh) * 2018-04-11 2023-07-25 波士顿电梯（湖州）有限公司 客梯防坠落轮式安全装置
CN110173104B (zh) * 2019-06-27 2024-02-06 苏泉云 附着升降脚手架的防坠结构
CN110538396B (zh) * 2019-09-20 2024-08-23 中际联合（北京）科技股份有限公司 一种防坠器
CN212282600U (zh) * 2019-09-20 2021-01-05 中际联合（北京）科技股份有限公司 防坠落锁紧组件、防坠落装置和防坠落系统
CN111410153B (zh) * 2020-03-27 2021-10-22 广东博智林机器人有限公司 防坠保护装置
CN111853107B (zh) * 2020-07-09 2024-04-02 上海市隧道工程轨道交通设计研究院 一种竖直方向的自动锁定装置及其工作方法
CN111840851A (zh) * 2020-08-18 2020-10-30 中际联合（北京）科技股份有限公司 绳索锁止装置
US12042678B2 (en) * 2020-10-22 2024-07-23 Bashlin Industries, Inc. Adjustable lineman safety belt
CN112757192B (zh) * 2021-02-01 2022-08-09 长春合心机械制造有限公司 快换夹具自锁紧定位机构
CN113509656A (zh) * 2021-06-15 2021-10-19 杭州制氧机集团股份有限公司 一种便捷式生命保护绳
US11781610B2 (en) * 2021-06-18 2023-10-10 Cmc Rescue, Inc. Systems for line device
CN113847389B (zh) * 2021-09-29 2023-04-18 广东电网有限责任公司 一种用于杆塔作业的重物防坠挂钩
NO20211209A1 (no) * 2021-10-08 2022-11-28 Lonevag Beslagfabrikk As Fallsikring for skråtak
CN114908854B (zh) * 2022-06-10 2024-06-21 安徽碧之润生态环境科技有限公司 一种市政工程排水检测井防坠装置
US20250003459A1 (en) * 2023-06-30 2025-01-02 Honeywell Safety Products Usa Inc. Locking system for a vertical cable shuttle

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US4657110A (en) * 1984-12-10 1987-04-14 D B Industries, Inc. Inertia rope grab
SU1301417A1 (ru) * 1985-11-25 1987-04-07 Производственное Объединение По Наладке,Совершенствованию Технологии И Эксплуатации Электростанций И Сетей "Союзтехэнерго" Устройство дл страховки
GB8627320D0 (en) * 1986-11-14 1986-12-17 Latchways Ltd Lockable load-transfer
US4923037A (en) * 1989-06-29 1990-05-08 John Stephenson Fall arrest device
FR2688815B1 (fr) * 1992-03-18 1994-06-10 Komet Perfectionnements aux dispositifs de securite pour ouvriers travaillant dans des endroits eleves.
FR2720283B1 (fr) * 1994-04-21 1996-08-23 Froment Sa Appareil anti-chute verrouillage automatiquement sur une corde de sécurité.

Also Published As

Publication number Publication date
FR2751233B1 (fr) 1998-10-09
WO1998002210A1 (fr) 1998-01-22
CN1197401A (zh) 1998-10-28
ES2202628T3 (es) 2004-04-01
CZ292340B6 (cs) 2003-09-17
CZ79898A3 (cs) 1998-06-17
BR9702343A (pt) 1999-12-28
JP3262279B2 (ja) 2002-03-04
CA2231722C (fr) 2005-03-22
PL184120B1 (pl) 2002-09-30
AU729685B2 (en) 2001-02-08
FR2751233A1 (fr) 1998-01-23
DE69723046D1 (de) 2003-07-31
CA2231722A1 (fr) 1998-01-22
AU3698397A (en) 1998-02-09
US6056086A (en) 2000-05-02
PL325518A1 (en) 1998-08-03
CN1100576C (zh) 2003-02-05
DE69723046T2 (de) 2004-04-01
JPH11512958A (ja) 1999-11-09
EP0859648A1 (fr) 1998-08-26

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