EP0168021B1 - Schlitten für eine Steigschutzvorrichtung zum Besteigen einer Leiter - Google Patents

Schlitten für eine Steigschutzvorrichtung zum Besteigen einer Leiter Download PDF

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Publication number
EP0168021B1
EP0168021B1 EP85108468A EP85108468A EP0168021B1 EP 0168021 B1 EP0168021 B1 EP 0168021B1 EP 85108468 A EP85108468 A EP 85108468A EP 85108468 A EP85108468 A EP 85108468A EP 0168021 B1 EP0168021 B1 EP 0168021B1
Authority
EP
European Patent Office
Prior art keywords
profile
guide
slide
guide means
carriage
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
EP85108468A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0168021A1 (de
Inventor
Ernst Söll
Manfred Fränkel
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.)
Soell Industrieschmiede GmbH
Original Assignee
Soell Industrieschmiede 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 Soell Industrieschmiede GmbH filed Critical Soell Industrieschmiede GmbH
Priority to AT85108468T priority Critical patent/ATE31342T1/de
Publication of EP0168021A1 publication Critical patent/EP0168021A1/de
Application granted granted Critical
Publication of EP0168021B1 publication Critical patent/EP0168021B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
    • E06C7/187—Guiding rail

Definitions

  • the invention relates to a slide for a fall arrest device for climbing a ladder, the slide sliding in a guide with a C-profile that is open to the front and that form guide flanges that delimit the opening of the C-profile lips of the C-profile, the slide having guide devices that encompass the guide flanges and parts of the guide devices are designed to be rotatable in order to release the engagement with the guide flanges and to take the slide out of the guide and to be able to insert it into the slide, the slide also has means for fastening a seat belt and a pawl which is spring-loaded in one Locked position is held, and the pawl cooperates with stop surfaces arranged at intervals inside the C-profile of the guide.
  • Such a carriage is known from DE-A-2 736 037.
  • the parts of the guide devices encompassing the one guide flange are designed to be pivotable about an axis running parallel to the guide, so that they can be moved in the direction of the parts of the guide devices encompassing the other guide flange, as a result of which the slide can then be removed from the guide.
  • a threaded bolt must be tightened using a socket wrench or an additional locking pin must be provided, which makes the construction of the slide more complex.
  • the invention has for its object to improve a slide of the type mentioned in such a way that it can be locked in a securing position without the aid of tools and can be brought from the securing position into the insertion position in a simple manner.
  • the parts of the guide devices arranged in the interior of the C-profile are designed to be rotatable about an axis perpendicular to the plane of the opening of the profile, and these parts of the guide devices have a dimension which, in the inserted position, is smaller than the width of the opening of the C profile.
  • the rotatable parts of the guide devices preferably snap into the securing position and the inserted position.
  • the carriage is preferably also guided by rollers.
  • the slide according to the invention can be used at any point along a guide which is formed by a C profile which is open to the front, and the guide devices can then be brought into their securing position in a few steps, in which the slide slides securely in the guide. Failure of the fall arrest device due to careless handling of the slide is largely excluded.
  • the guide can also be the central spar of a vertical ladder, as described in DE-C-1 961 757.
  • the ladder rungs penetrate the central spar at regular intervals and the section of the step surfaces of the ladder prosplos located inside the C-profile also serves as a stop surface for the pawl of the slide.
  • the guide rail 1 serves as a guide for the carriage, as is explained in DE-C-1 961 757.
  • each rail with a C-profile that is open at the front serving as a guide.
  • the stop surfaces can then e.g. Project inwards from the back of the C-profile, as shown in DE-A-3 129 991.
  • the guide rail 1 which forms the guide has a C profile which is open to the front and has profile side walls 4 which are connected by a profile rear side and has profile lips 6 which point towards one another at the front and which delimit an opening 7 between them.
  • the profile lips 6 serve as guide flanges.
  • the carriage 8 consists of a generally rectangular body 9 which is guided along the ladder stile 1 by guide devices 10.
  • a pawl 18 is rotatably mounted on a pin 19 in a slot-shaped opening 11 in the slide 8.
  • the pawl nose 20 of the pawl 18 protrudes rearward from the body 9 and into the interior of the C-profile of the ladder stile 1 to the extent that the pawl nose 20 can lie against the stop surface 5.
  • the pawl 18 is mounted at its upper end by means of the pin 19 and the back 21 of the pawl nose 20 is chamfered downwards from the pin bearing.
  • On its front side the pawl is provided with an eyelet 22, on which e.g. a safety belt can be fastened by means of a snap hook 23, which a person climbing the ladder wears.
  • the pawl 18 is under the action of a compression spring 25 which presses against the pawl 18 above the journal bearing and a tension spring 27 which engages the pawl 18 below the journal bearing.
  • the compression spring 25 and the tension spring 27 both try to turn the pawl 18 in FIG. 4 counterclockwise and bring it into the locked position shown in solid lines, in which the pawl nose 20 can be supported on a stop surface 5. If the carriage is pulled upwards by a person climbing the ladder, the back 21 of the ratchet nose 20 comes to lie against the stop faces 5 from below and becomes open because of its bevel pushed forward so that the pawl 18 is pivoted clockwise and can hit the stop surface 5.
  • the eyelet 22 is attached obliquely to the front below the journal bearing, so that the pawl 18 is also pivoted clockwise when an upward or forward pull is exerted on the eyelet 22, for example by the person climbing the ladder.
  • a downward pull is exerted on the eyelet 22 which, in addition to the action of the compression spring 25 and the tension spring 27, tries to turn the pawl 28 into the locking position.
  • the pawl 18 When descending, the pawl 18 must therefore be pivoted clockwise by hand against the spring force of the springs 25 and 27 to drive over a stop surface 5. This is done by exerting a pull directed away from the stile 1 on the eyelet 22. This position of the pawl 22 is shown in Fig. 4 by a broken line.
  • the pawl 22 is consequently pressed into its locked position by the downward train which occurs in the event of a crash.
  • a recess 29 is provided, into which a stop pin 30 attached to the body 9 projects. The recess 29 and the stop pin 30 limit the movement of the pawl 18th
  • the carriage 8 is guided by guide devices which engage on the outside and inside on the profile lips 6 serving as guide flanges.
  • the guide devices have outer rollers 31, which are mounted on the body 9 and run on the outside of the profile lips 6, and inner rollers 32, which roll on the inside of the profile lips 6.
  • Two inner rollers 32 each are mounted on two shafts 33, which in turn are rotatably mounted in the body 9 above and below the pawl 18.
  • the axis of the shaft 33 is perpendicular to the opening 7 and the axis of the inner rollers 32 is transverse to that of the shaft 33.
  • the shaft 33 is secured in the body 9 against falling out.
  • the shaft 33 has a groove 34, approximately in the middle of its length, which tangentially engages with a securing threaded pin 35 which is screwed into the block 9.
  • the inner rollers can be brought into a securing position and an insertion position.
  • the axis of the inner rollers 32 lies parallel to that of the outer rollers 31 and thus transversely to the opening 7, so that the carriage 8 is guided safely along the ladder stile 1 by the outer and inner rollers 31, 32.
  • the shaft 33 By turning the shaft 33 through 90 °, the slide is brought into the inserted position.
  • the axis of the inner rollers 32 then points in the longitudinal direction of the opening 7 and thus in the longitudinal direction of the ladder rail 1.
  • the inner rollers 32 are therefore no longer in contact with the inside of the profile lips 6 and the carriage 8 can be lifted off the ladder rail 1. So that the inner rollers 32 can pass through the opening 7 when the carriage 8 is lifted off the ladder rail 1, the diameter of the inner rollers 32 is smaller than the width of the opening 7. So that the shaft end does not lock in the opening 7 when the shaft 33 is rotated, it is expediently cylindrical, and the cylinder diameter is somewhat smaller than the width of the opening 7.
  • the distance between the inner rollers 32 corresponds approximately to the width of the opening 7, and the width of the inner rollers 32 corresponds approximately to the height of the profile lips 6, so that the inner rollers 32 can run in the secured position without too much play within the C-profile.
  • the two shafts 33 engage in the securing position or the inserted position.
  • the front end of the shaft 33 projects beyond the body 9 and has a transverse opening 36 in which a wing handle 37 is arranged.
  • the wing handle 37 is fixed by a screw which is screwed coaxially into the front end of the shaft 33 and extends over the transverse opening 36 and is pressed against the body 9 by a compression spring 39 seated on the screw 38.
  • a compression spring 39 seated on the screw 38.
  • In the surface of the body 9 there are cross-shaped locking grooves 40, and under the force of the compression spring 39 the wing handle 37 engages in these locking grooves 40 in two mutually perpendicular positions.
  • the wing handle 37 is expediently arranged parallel to the axis of the inner rollers 32, so that the position of the wing handle 37 corresponds to the position of the inner rollers 32.
  • the locking rollers 40 consist of a horizontal and a vertical groove. The storage and securing of the shaft 33 and the locking mechanism are identical in the lower two of the inner rollers 32 and in the upper two inner rollers 32.
  • the head of the shafts 33 such that even if only one of the two inner pairs of rollers is rotated into the securing position, the carriage 8 already prevents the person climbing the ladder from falling, i.e. even then the pawl 18 comes to rest against the stop surfaces 5 and thus the stop surfaces 5 cannot be run over without manually pivoting the pawl 18.
  • the head of the upper shaft 33 is provided at its front end with a securing lug 42 which projects upwards in its securing position and is somewhat rounded at the front at 44.
  • the head of the lower shaft 33 is provided at its front end with a securing lug 42 which projects downward in its securing position and is also somewhat rounded at the front at 44.
  • the shafts 33 are each rotated such that the locking lugs 42 point to the same side, in the exemplary embodiment shown to the right.
  • the possibility of rotation of the wing handles 37 is limited so that they are both only in one direction from the securing position can be rotated into the inserted position, specifically in the illustrated embodiment by rotating the upper wing handle 37 by 90 ° clockwise and the lower wing handle 37 by 90 ° counterclockwise - in each case in FIG. 3. This is necessary because the ribs 42 at the head end of the two shafts 33 must point to the same side in order to insert and remove the slide 8.
  • the inner rollers 32 are brought into their insertion position.
  • the wing handle 37 is gripped at both ends with the thumb and forefinger and lifted off the body 9 against the force of the compression spring 39, so that the shaft 33 can be rotated.
  • the two shafts 33 are rotated so that the axes of the inner rollers 32 in the longitudinal direction, i.e. Show direction of movement of the carriage 8.
  • the locking lugs 42 point to the right. In this position, the carriage 8 can be placed on the ladder bar 1, the pawl 18 and the head of the shafts 33 with the inner rollers 32 and the locking lugs 42 projecting into the interior of the C-profile.
  • the carriage 8 is then pressed to the right on the right profile lip 6, so that the securing lugs 42 come to lie behind this profile lip 6 of the ladder stile 1.
  • the body 9 of the carriage 8 is then fully pressed against the ladder stile 1, while with the other hand one of the wing handles 37 is lifted off the body 9 and rotated through 90 °, so that the axes of the inner rollers 32 now cross extend to the handlebar 1.
  • the wing handle 32 engages again in this position.
  • the other shaft 33 is rotated by 90 °, again engaging in the transverse groove of the locking groove 40.
  • the carriage 8 is thus securely connected to the ladder rail 1 and can slide along it and fulfill its safety function.
  • the inner pairs of rollers 32 are first placed parallel to the longitudinal direction of the ladder stile 1 by turning the wing handles 37. Then the carriage 8 is pivoted somewhat counterclockwise about an axis parallel to the longitudinal direction of the ladder rail 1, as seen in FIG. 6, so that the securing lugs 42 can pass through the opening 7 and the carriage 8 can be removed from the ladder rail 1.
  • the slide 8 must of course always be inserted into the opening 7 of the ladder stile 1 so that the back of the latch nose 20 points upwards. Additional safety devices are expediently provided, which prevent incorrect insertion of the slide 8.
  • a locking pin 47 protrudes laterally from the body 9 of the carriage 8, which interacts at the upper and lower ends of the guide rail 1 with likewise known guide means and firstly prevents the carriage 8 from accidentally falling out at the lower and upper ends of the guide rail 1 and secondly incorrect insertion of the carriage 8 at the lower and upper end of the ladder rail 1 excludes.
  • the carriage 8 can be inserted or removed in the usual manner at the lower and upper end of the guide rail 1 without the need to pivot the shafts 33 into the insertion position.
  • the carriage 8 is not only provided with appropriate markings, but expediently has an additional one Lock lever 48 on.
  • the locking lever 48 is mounted at the lower end of the carriage 8 in a downwardly open slot facing the opening 7 and falls out of this slot somewhat when the carriage 8 is in the correct position.
  • the locking lever 48 projects approximately as far as the lower shaft 33 into the opening 7. If the carriage 8 is accidentally wrong, i.e. With the back of the pawl nose 20 pointing downwards, the locking lever 48 falls into the slot and its front end then lies flat next to the shaft 33 and prevents the shaft 33 from rotating from the inserted position into the securing position. In an attempt to rotate the shaft 33 from the inserted position to the securing position, one of the rollers 32 abuts the locking lever 48. As a result, the person who wants to use the climbing protection device is made aware of the incorrect position of the slide 8.
  • the inner rollers 32 are not always necessary. They can be replaced by simple sliding surfaces on the head of the shaft 33. Likewise, the outer rollers 31 can be omitted, so that the body 9 slides directly on the outside of the profile lips 6.
  • the guide can be the ladder spar 1 of a single-spar ladder or an additional central spar of a conventional ladder with two side spars.
  • the climbing protection device described above can in principle be used in connection with any type of climbing devices.
  • the carriage 8 is generally made of aluminum for reasons of weight, the highly stressed parts, e.g. the pawl 18, the rollers, etc. can also be made of high-strength steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Breakers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Confectionery (AREA)
  • Types And Forms Of Lifts (AREA)
  • Movable Scaffolding (AREA)
  • Control And Safety Of Cranes (AREA)
  • Lead Frames For Integrated Circuits (AREA)
EP85108468A 1984-07-13 1985-07-09 Schlitten für eine Steigschutzvorrichtung zum Besteigen einer Leiter Expired EP0168021B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108468T ATE31342T1 (de) 1984-07-13 1985-07-09 Schlitten fuer eine steigschutzvorrichtung zum besteigen einer leiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843425947 DE3425947A1 (de) 1984-07-13 1984-07-13 Schlitten fuer eine steigschutzvorrichtung zum besteigen einer leiter
DE3425947 1984-07-13

Publications (2)

Publication Number Publication Date
EP0168021A1 EP0168021A1 (de) 1986-01-15
EP0168021B1 true EP0168021B1 (de) 1987-12-09

Family

ID=6240620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108468A Expired EP0168021B1 (de) 1984-07-13 1985-07-09 Schlitten für eine Steigschutzvorrichtung zum Besteigen einer Leiter

Country Status (8)

Country Link
EP (1) EP0168021B1 (fi)
AT (1) ATE31342T1 (fi)
AU (1) AU568942B2 (fi)
DE (2) DE3425947A1 (fi)
ES (1) ES295997Y (fi)
FI (1) FI75396C (fi)
NO (1) NO163338C (fi)
ZA (1) ZA855269B (fi)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD739212S1 (en) 2013-05-10 2015-09-22 D B Industries, Llc Housing of a rope grab
USD746125S1 (en) 2013-05-10 2015-12-29 D B Industries, Llc Fixed side plate of a rope grab
USD764258S1 (en) 2013-05-10 2016-08-23 D B Industries, Llc Housing of a rope grab

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1001462A7 (fr) * 1988-02-24 1989-11-07 Jomy Sa Nacelle mobile sur echelle.
EP0418405A1 (de) * 1989-09-16 1991-03-27 Fahrleitungsbau GmbH Fangeinrichtung für eine Steigschutzeinrichtung
DE29501716U1 (de) * 1995-02-03 1995-03-16 Soell Gmbh Fangeinrichtung für ein Steigschutzsystem
FR2745030B1 (fr) * 1996-02-20 1999-10-01 Komet Nacelle de travail destinee a etre utilisee sur une echelle
DE29610333U1 (de) * 1996-06-12 1996-08-22 Soell Gmbh Steigvorrichtung
DE29712753U1 (de) 1997-07-18 1997-09-11 Soell Gmbh Versenkbare Verlängerung der Führungsschiene einer Steigschutzvorrichtung
DE29906047U1 (de) 1999-04-01 1999-07-01 Soell Gmbh Auffanggerät
DE29920850U1 (de) 1999-11-29 2000-02-24 Soell Gmbh Fangeinrichtung für ein Steigschutzsystem
DE60030669T2 (de) * 1999-12-24 2007-09-13 T2 Systems Ltd. Strukturelemente und zugehörige Teile
EP1253280B1 (fr) * 2001-04-20 2013-02-20 New Technelec S.A. Equipement pour ancrage de sécurité
DE20314230U1 (de) 2003-09-12 2003-11-06 Christian Dalloz Holding Deuts Auffanggerät als Teil einer Absturzsicherung für Leitern und ähnliche Steigwege
AU2006349972B2 (en) 2006-10-16 2012-05-17 Honeywell Fall Protection Deutschland Gmbh & Co. Kg Fall arrester for a climbing protection system
JP5427955B2 (ja) 2009-10-23 2014-02-26 ディー ビー インダストリーズ，リミテッド ライアビリティー カンパニー エネルギー吸収体
CN101975020B (zh) * 2010-10-29 2015-06-17 新疆电力公司乌鲁木齐电业局 改进型双分裂软梯悬挂头
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
US10137323B2 (en) 2013-11-11 2018-11-27 Honeywell International Inc. Guided type fall arrester—body control system
US10047560B2 (en) 2014-05-29 2018-08-14 Honeywell International Inc. Guided type fall arrester—force control
CN104314459B (zh) * 2014-10-31 2016-09-14 国家电网公司 自闭锁软梯
CN104821518A (zh) * 2015-06-03 2015-08-05 国网冀北电力有限公司唐山供电公司 带自锁装置的软梯头
KR102553671B1 (ko) * 2023-03-24 2023-07-10 이윤환 사다리용 수직 추락 방지 장치
KR102585960B1 (ko) * 2023-06-29 2023-10-06 양현수 작업자 추락방지 기능을 구비한 고소작업차량

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784726B1 (de) * 1968-09-11 1971-09-23 Fahrleitungsbau Gmbh Absturzsicherung, insbesondere für Leitern
DE2060718B2 (de) * 1970-12-10 1973-08-02 Fahrleitungsbau Gmbh, 4300 Essen Absturzsicherung an leitern oder aehnlichen vorrichtungen
AU484009B2 (en) * 1972-05-01 1974-11-07 Gibson William Safety device for ladders and the like
US4111280A (en) * 1977-01-31 1978-09-05 Norton Company Supporting guide rail for ladder safety device
FR2385881A1 (fr) * 1977-03-30 1978-10-27 Aumont Ets Dispositif de securite, pour echelle
DE2736037C3 (de) * 1977-08-10 1981-01-22 Soell Kg, Industrieschmiede, 8670 Hof Steigschutzvorrichtung
WO1982000006A1 (en) * 1980-06-24 1982-01-07 F Graham Improved fire escape apparatus
US4546855A (en) * 1981-10-05 1985-10-15 The Bilco Company Safety extension for a fixed ladder with an adjustable mount

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD739212S1 (en) 2013-05-10 2015-09-22 D B Industries, Llc Housing of a rope grab
USD746125S1 (en) 2013-05-10 2015-12-29 D B Industries, Llc Fixed side plate of a rope grab
USD764258S1 (en) 2013-05-10 2016-08-23 D B Industries, Llc Housing of a rope grab

Also Published As

Publication number Publication date
ATE31342T1 (de) 1987-12-15
NO852808L (no) 1986-01-14
AU568942B2 (en) 1988-01-14
FI75396B (fi) 1988-02-29
NO163338C (no) 1990-05-09
ES295997Y (es) 1988-01-16
EP0168021A1 (de) 1986-01-15
FI75396C (fi) 1988-06-09
AU4470385A (en) 1986-01-16
DE3561167D1 (en) 1988-01-21
NO163338B (no) 1990-01-29
ZA855269B (en) 1986-02-26
DE3425947A1 (de) 1986-01-16
FI852695L (fi) 1986-01-14
FI852695A0 (fi) 1985-07-08
ES295997U (es) 1987-07-16

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