EP2200702B1 - Rope grab for a fall protection system - Google Patents
Rope grab for a fall protection system Download PDFInfo
- Publication number
- EP2200702B1 EP2200702B1 EP08803986A EP08803986A EP2200702B1 EP 2200702 B1 EP2200702 B1 EP 2200702B1 EP 08803986 A EP08803986 A EP 08803986A EP 08803986 A EP08803986 A EP 08803986A EP 2200702 B1 EP2200702 B1 EP 2200702B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- rope
- gap
- clamping lever
- shuttle
- 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.)
- Not-in-force
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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
- A62B35/0043—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
- A62B35/0056—Horizontal 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
- A62B35/0081—Equipment which can travel along the length of a lifeline, e.g. travelers
- A62B35/0087—Arrangements for bypassing lifeline supports without lanyard disconnection
Definitions
- the present invention relates to a runner for a climbing protection system for preventing a user from falling off a ladder, a pedestal or the like.
- the runner is guided along a rope and jams when a user crashes on the rope.
- the rotor has a guide device for the cable and a rotatably mounted clamping lever which has an eccentric at a first end facing the cable and an abutment point at a second end protruding from the housing.
- Fall arrest systems usually consist of a rope, for example a wire rope, and a guided on the rope, trailing fall arrester, which is hereinafter referred to as a runner.
- the cable may be attached to a structure or the like by means of cable end connections, a cable tensioner and fastening elements.
- a user of the climbing protection system is connected via a safety harness with the runner, which runs along with the user.
- the safety harness is connected to the clamping lever of the runner, which, in the event of a user's fall, ensures that the runner is clamped to the rope of the fall arrest system so as to prevent the free fall of the user.
- Such a runner is offered under the product name SKC by Antec (now Sperian Fall Protection Company), 35-37 rue de la Bidauderie, BP334, 18103 Vierzon, France.
- a snap hook which connects the harness of a user with the runner, is secured in an eyelet at one end of a clamping lever.
- the clamping lever is rotatably mounted in the rotor and is pivoted in a crash by the train which the safety harness exerts on him, so that the eccentric of the clamping lever presses against the guided in the guide device of the rotor rope and the runner clamps on the rope. Furthermore, the clamping lever closes when using the Runner a gap along the guide device, which must be opened for attaching the rotor on the rope.
- the gap is closed when using the runner by a plastic lever, which must first be folded back before the runner can be removed from the rope.
- the carabiner must be separated from the runner, otherwise the clamping lever can not be pivoted so far that it releases the gap.
- a runner of the type described above is generally known, to which also a snap hook can be attached, which connects the safety harness of a user with the runner.
- a locking lever is released and a clamping lever to which the snap hook is attached, is pivoted upwards.
- a jaw of the clamping lever is pressed against the rope. Further, the jaw closes when using the rotor, the gap along the guide means of the rotor.
- a problem of the runners for a climbing protection system of the type described above is that they are not suitable for use in a fall arrest system whose rope is secured by intermediate brackets to a structure or the like, since the runner is not movable over such intermediate brackets. The runner must be transferred by hand to such intermediate holders.
- a climbing protection device consisting of a tensioned by a plurality of intermediate holder rope and a catching device which is movable along the rope.
- the catching device has a U-shaped bent part, which surrounds the rope of the climbing protection device, and a retaining cam which is rotatably mounted.
- the rope between the retaining cam and the U-shaped bent part is clamped so that the catcher is locked to the rope.
- the catcher can be removed or attached at any time from the rope.
- two independent mechanisms must be operated. The two Mechanisms are arranged so that they can not be operated with one hand.
- the invention is therefore an object of the invention to provide a runner for a climbing protection system that is movable over intermediate holder of the fall arrest system when the runner is secured to the rope, and provides higher user safety than the known fall arrest systems.
- the rotor has a slide for opening and at least partially closing a gap of the guide device, wherein the slider is biased into the gap at least partially closing, first position, and a first locking device, which the slider in the blocks the gap at least partially closing, first position and which is releasable to allow a displacement of the slider in a second position in which the gap is open.
- the clamping lever and the slide of the rotor work independently. At the outwardly projecting end of the clamping lever, the user is connected to the runner.
- the clamping lever is generally biased by a spring into its clamping position, wherein the force exerted by the spring force on the clamping lever torque is overcome by the opposing torque generated by the own weight of the rotor when pulled up the harness along the rope becomes.
- the slider secures the runner in use on the rope of the fall arrest system. The fact that the slider is biased to the first position and the first locking device blocks it in this position, the user must first actuate the slider and the first locking means to move the cable through the gap of the guide means.
- the slider closes the gap of the guide means when using the rotor not completely.
- the gap width when using the rotor is then such that it is smaller on the one hand than the diameter of the rope and on the other hand sufficiently large, so that the runner can pass in the secured state intermediate holder of the rope.
- the runner does not have to be detached from the rope to pass an intermediate holder of the climbing protection system, whereby the user safety is increased.
- a slipping out of the rope from the guide device during use of the rotor is prevented.
- the first locking device allows the slide sufficient clearance to open the gap of the guide device so far that the runner can pass it when the slide abuts an intermediate holder of the rope ,
- the rotor according to the invention can be used in climbing protection systems with different rope diameters.
- Ropes with a diameter of 9.5 mm (3/8 inch) are usually used in the USA, whereas in Europe usually ropes with a diameter of 8 mm or 10 mm are used.
- the guide device is preferably dimensioned so that cables of different diameters can be accommodated.
- the slider is then in turn dimensioned so that on the one hand it can open the gap so that even thicker ropes fit through, and on the other hand, it can close the gap so far that thinner ropes can not slip out of the guide means when using the rotor.
- the first end of the clamping lever which ensures that the runner clamps on the rope in the event of a user's fall, is dimensioned so that it can unfold its clamping action on cables of different diameters.
- the clamping lever may have different shapes.
- the first end of the clamping lever is bent so that the first end is pointing downwards when the runner in a predetermined orientation is placed on the rope.
- the kinked first end of the clamping lever is rounded so that the point of contact of the rope performs an eccentric movement when the clamping lever moves into the clamping position.
- the clamping lever has a symmetrical shape.
- the clamping lever is then designed anchor-shaped, so that the clamping lever is symmetrical along its longitudinal axis.
- the clamping lever and in particular its first end of the rotor can act as a fall protection in both directions, since its first end is always moved in the event of a crash of the user in a clamping position.
- care must be taken when placing the runner on the rope that the runner is placed in a predetermined orientation.
- Another advantage of the present invention is that the runner can be placed anywhere on the rope of the fall arrest system and removed again by the gap is opened.
- two mechanisms must be operated, thereby preventing inadvertent release of the traveler from the rope. That is, only when the first locking device is released, the gap can be opened by moving the slider.
- the first locking device blocks the slider, inadvertent operation of the slider can not release the slider from the cable.
- the first locking device is designed to be movable, so that it blocks the slider in a first position and permits a displacement of the slider in a second position.
- the first locking device is biased by a spring in the first position to normally block the slider for safety reasons. Only when the user moves the first locking device against the spring force in the second position, the slider can be moved.
- the first locking device has a Bolt, which has a region of reduced diameter in its longitudinal direction and is axially displaceable and is provided on the slide a detent which is formed so that the region of reduced diameter of the bolt is aligned with the latch when the bolt is pressed to move of the slider in its second position. That is, in order to move the slider, the bolt must be displaced so that upon actuation of the slide, the locking lug strikes the area of reduced diameter of the bolt, so that the locking lug can pass through the bolt.
- the first locking device which has a bolt, thus functions such that the latching lug of the slider strikes a region with the actual bolt diameter when the locking device is in the first position and strikes a region of reduced diameter when the locking device in the second Position is.
- the slider is movable substantially at right angles to the longitudinal axis of the guide device and thus at right angles to the cable.
- the slider can be formed so that it at least partially closes the gap over the entire length of the guide device. Then, the runner can better lead along the rope, since the slider reliably prevents leakage of the rope from the guide device.
- the runner only acts in one direction as a fall protection and must therefore be placed in the predetermined orientation on the rope.
- the front end of the bent clamping lever shows obliquely downwards.
- the runner preferably has a second locking means for locking the slider in its first position when the user attempts to place the runner in an inverted orientation on the rope; the gap then can not be opened, and the runner can not be placed on the rope.
- the second locking device is used in a runner, which in an oblique or vertical climbing protection system only in one Direction on the rope may be secured. Because if the runner were secured in the wrong direction on the rope, the clamping lever could no longer be effective in the event of a user crash.
- the second locking device consists of a locking pin, which is movably mounted in the housing of the slider and which falls by its own weight in a bore in the housing of the rotor when the rotor is placed in the wrong orientation on the rope, whereby the slider is blocked (anti upside-down).
- two holes are provided into which the locking pin can fall to block the slider.
- a first bore is disposed in the housing such that the slider is in its at least partially closed position when the locking pin falls into the bore. That is, the second locking device ensures that the runner can be opened only in a predetermined orientation to put it on the rope.
- the clamping lever has a stop lug and a fall damper at its second end.
- the carabiner need not be removed when opening or closing the gap of the guide means, since the clamping lever according to the present invention only performs the function of a brake for the rotor and is not used simultaneously as a closure for the gap. That is, according to the present invention, the clamp lever need not be moved to a predetermined position first to open the gap of the guide means. The opening and closing of the gap is controlled by the slider and the first locking device, which are independent of the clamping lever.
- the shock absorber provides a damping of the impact force in the event of a user crash when the runner jerks to the rope.
- the fall damper may be attached to the outwardly projecting end of the clamping lever or integrated therein.
- Suitable shock absorbers are in the DE 295 01 716 U1 and the WO 99/49939 A1 described.
- the fall arrester which thus acts as an energy absorbing element for the user in the event of a fall, can be made of stainless steel. However, the fall damper can also be made of other metallic materials or plastic.
- the rotor according to the invention may in particular be made of stainless steel, plastic or aluminum.
- the rotor according to the invention complies with the standard DIN EN 353-1 / A1 (Personal protective equipment against falling - Part 1: On-board fall arrest devices including fixed guidance, German version EN 353-1: 2002 / prA1: 2007).
- the rotor 10 is part of a climbing protection system and is guided along a rope S.
- the runner 10 has a rectangular housing 12, a guide device 14 in the form of a channel along one longitudinal side of the housing 12, a clamping lever 16 with a stop lug 24 and a first and second locking device 50 , 80 on.
- the clamping lever 16 is rotatably mounted in the rotor 10 and is used in runners, which are provided for a climbing protection system with an obliquely or vertically tensioned rope S.
- FIG. 1 shows the rotor in its non-clamping, normal position in which the clamping lever 16 does not protrude into the guide device 14.
- the clamping lever 16 is biased by a clamping lever spring 20 in a clamping position in which it clamps the rotor 10 on the rope S, but the clamping lever 16 is in use under the weight of the rotor 10 is pivoted to the release position.
- the clamping lever 16 is normally not on the rope S in the guide device 14 of the rotor 10, so that no friction occurs and movement of the rotor 10 on the rope S is not affected.
- the clamping lever 16 of FIG. 1 is two-armed, and its first, the rope S facing arm 22 is angled downwards.
- the rotor 10 is placed in the correct orientation on the rope S, since it can then act as fall protection.
- the outer surface of the first arm 22 of the clamping lever facing the cable S is rounded so that the outer surface performs an eccentric movement when the clamping lever 16 is moved to the clamping position.
- protruding from the housing arm of the clamping lever 16 has a stop lug 24 for attaching a carabiner 26 of the safety harness of the second arm.
- a damping element 28 is provided, the effect of which will be described later.
- Guide rollers 30 in the guide device 14 of the rotor 10 serve to guide the rope S of the climbing protection device.
- the dimensioning of the guide means 14 is suitable for ropes S of different diameters (e.g., 8 mm, 10 mm, 3/8 inches). So that the clamping lever 16 in the use of the rotor 10 does not touch even thicker cables S in the guide device 14, the ratio between the spring force of the clamping lever spring 20 and the weight of the rotor 10 must be selected accordingly.
- FIG. 2 shows the in FIG. 1 illustrated clamping lever 16 in the clamping position, which it occupies in a crash of the user.
- the clamping lever 16 is therefore brought by the bias of the clamping lever spring 20 in the clamping position in which the end of the first arm 22 of Clamping lever 16 presses against the rope in the guide device 14, so that the rotor 10 is clamped to the rope S. That is, by the eccentric shape of the first arm 22 of the clamping lever 16, the rotor 10 jams on the rope S and prevents a free fall of the user.
- the clamping lever 16 has a damping element 28 which is formed by a non-rectilinear shaped portion of the clamping lever 16 at its second end.
- the damping element 28 is released at a certain load, for example, when the user crashes and the clamping lever 16 is moved to the clamping position. This dampens the impact force, thereby reducing the risk of injury to the user.
- FIG. 3 shows a sectional view of a rotor 10 with a symmetrically shaped clamping lever 32.
- the clamping lever 32 is also rotatably mounted in the rotor 10 but anchor-shaped, so that it is symmetrical along its longitudinal axis.
- the end of the first arm 22a of the clamping lever 32 is formed substantially perpendicular to its longitudinal axis. Due to the symmetrical shape of the clamping lever 32, two clamping lever springs 20 are necessary, which hold the clamping lever 32 in a central position.
- An advantage of the symmetrical clamping lever 32 is that it can be used on horizontal, inclined and vertical ropes. Since the clamping lever 32 is formed symmetrically, the rotor 10 can be placed according to this embodiment in both directions on the rope. Therefore, the rotor 10 requires according to FIG. 3 no second locking device, which prevents a placement of the rotor in the wrong orientation.
- Spring bearings 21 for the guide rollers 30 are provided at the ends of the guide means 14.
- the spring-loaded guide rollers 30 serve the cable guide and a certain delay of the rotor 10 in the movement on the rope S.
- the runner 10 is slightly delayed by the rollers 30, so that the clamping lever 16 by the weight of the user, just his Halt has lost something pivoted and touched with its lower end of the first arm, the rope S and clamped so that the rotor 10 is locked on the rope S.
- the guide device 14 is a channel with a continuous lateral gap 38.
- the gap 38 can be opened or partially closed.
- the first locking device normally blocks the slider 40 in the partially closed position of the gap 38.
- the slider 40 is in FIG. 4 shown in several parts.
- the slider 40 has a handle 42, whereby the user operates the slider 40, and a plate 44 from which the handle 42 projects and which is displaced in accordance with the operation of the handle 42.
- the individual components of the slider 40 are screwed or welded or the slider 40 is formed from a single part (eg as a casting).
- both metallic and non-metallic materials can be used.
- Helical compression springs 46 for the slider 40 are arranged between a housing part 48 of the rotor 10 and the slider 40. How out FIG. 5 can be removed, two helical compression springs 46 are provided for the slider 40. The helical compression springs 46 are used, the slider 40 in the gap 38 at least partially closing position (Fig. Fig. 4 ) to bias.
- FIG. 5 shows the runner 10 of the FIG. 4 with the gap 38 open, that is, the slider 40 is retracted.
- the open state of the gap 38 is thus achieved by the first locking device 50, ie the bolt 52 is pressed against the force of the helical compression spring 54 and then the slider 40 are moved against the force of the helical compression springs 46.
- the bolt 52 abuts against the stop 58 on the rotor housing. That is, when the first locking device 50 and then the slider 40 are each moved to its second position, the gap 38 of the guide device 14 is opened ( Fig. 5 ).
- the path of movement of the slider 40 is so large that the rotor 10 on the one hand on a rope S with a relatively large diameter (eg 10 mm) can be placed and the rotor 10 on the other hand in the partially closed state of the gap 38, as in FIG. 4 is shown, can be secured to a rope with a relatively small diameter (eg 8 mm).
- a relatively large diameter eg 10 mm
- a relatively small diameter eg 8 mm
- FIG. 6 shows the first locking device 50 of the rotor 10 without rotor housing 12.
- the first locking device 50 has a bolt 52 which has a region 52a of reduced diameter in its longitudinal direction.
- the bolt 52 is biased by a helical compression spring 54 up to its first position.
- the slider 40 is blocked and thus can not be displaced. This blocking is achieved by a detent 60 on the slider 40 abuts against a large diameter portion of the bolt 52.
- the slider 40 is blocked in its first position, in which it is biased by the helical compression springs 46 for the slider 40.
- the gap 38 of the guide device 14 is as in FIG. 4 shown partially closed, namely so far that on the one hand, the rope S can not fall out and on the other hand, an intermediate holder can be run over.
- the gap 38 is always partially closed when the user does not actuate the bolt 52 or the slider 40. Because both the bolt 52 and the slider 40 are biased by helical compression springs 46 and 54 in their respective first position.
- FIG. 7 shows the slider 40 in its retracted, second position, in which the gap 38 is then open.
- the pin 52 is pressed and abuts against a stop 58 so that the reduced diameter portion 52a is aligned with the detent 60 on the slider 40 to allow the slider 40 to be displaced, such that as in FIG FIG. 6 shown the gap 38 is opened by a displacement of the slider 40. Since the slider 40 can be moved only against the force of the helical compression springs 46, they are when opening the gap compressed, as in a comparison of FIGS. 6 and 7 can be seen.
- the slider 40 is moved substantially perpendicular to the guide 14 and the bolt 52.
- the pin 52 can be pressed with its thumb in its second position and then the slider 40 are moved with the fingers of the same hand in its second position to open the gap 38 of the rotor 10.
- the rotor 10 according to the invention allows a particularly simple operation, at the same time an unintentional release of the rotor 10 is prevented by the rope S.
- the rotor 10 can be made extremely compact by the described arrangement of the individual elements, so that the rotor housing 12 can be ergonomically designed.
- FIG. 8 shows the rotor 10 according to the invention, when running in use via an intermediate holder 70 for the rope S of a climbing protection system.
- the slider 40 and the bolt 52 are in their first position, so that the gap 38 of the guide device 14 is partially closed.
- the remaining gap opening on the one hand is sufficiently large, so that the rotor 10 can run over the intermediate holder 70 for the rope S, without having to open the gap 38.
- the gap 38 is closed so far that the rope S can not slip out of the guide device 14.
- the intermediate holder 70 is attached directly to a building, a ladder or other suitable ground.
- FIG. 9 shows a preferred embodiment of the rotor 10, wherein a second locking device 80 is provided which prevents the rotor 10 can be placed in the wrong orientation on the rope S.
- the second locking device 80 has a locking pin 82 which is movably mounted in the blind 40 in a blind bore 84 open on one side.
- the blind bore 84 is located at the end of the slider 40 against which the compression springs 46 press.
- the blind bore 84 has a lower closed end 86 and a upper open end 88. If the slider 10 is in the correct orientation relative to the cable S, then the locking pin 82 strikes by its own weight at the lower, closed end 86 of the blind bore 84 and is completely absorbed by the blind bore 84. In this position, the mechanics of the slider 40 is free to move.
- the locking pin 82 falls by its own weight through the open end of the blind bore 84 into a bore 90 in the housing 12 of the rotor 10. As a result, the slider 40 is locked and can not be moved. There are two holes 90a and 90b in the housing 12 of the rotor 10 is provided ( Fig. 10 ). If the slider 40 is in its first position, in which it closes the gap 38, the locking pin 82 falls in the wrong orientation of the rotor 10 in the first bore 90 a. The slider 40 can no longer be brought into its second position and the gap 38 can not be opened.
- the slide 40 is already in the second position, ie the gap 38 is already open, and if the runner 10 is only then turned over and an attempt is made to put it on the rope S, the locking pin 82 falls into the second bore 90b in the housing 12 of the rotor 10. Now, the slider 40 can not be brought into the first position to close the gap 38, so that the rotor 10 does not remain on the rope S.
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- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Lowering Means (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
- Installation Of Indoor Wiring (AREA)
- Hydraulic Turbines (AREA)
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Läufer für ein Steigschutzsystem zur Verhinderung eines Absturzes eines Benutzers von einer Leiter, einem Podest oder dergleichen. Der Läufer wird entlang eines Seils geführt und klemmt bei einem Absturz eines Benutzers am Seil. Der Läufer weist eine Führungseinrichtung für das Seil und einen drehbar gelagerten Klemmhebel auf, welcher an einem ersten, dem Seil zugewandten Ende einen Exzenter und an einem zweiten, aus dem Gehäuse vorstehenden Ende einen Anschlagpunkt besitzt.The present invention relates to a runner for a climbing protection system for preventing a user from falling off a ladder, a pedestal or the like. The runner is guided along a rope and jams when a user crashes on the rope. The rotor has a guide device for the cable and a rotatably mounted clamping lever which has an eccentric at a first end facing the cable and an abutment point at a second end protruding from the housing.
Steigschutzsysteme bestehen üblicherweise aus einem Seil, beispielsweise einem Drahtseil, und einem auf dem Seil geführten, mitlaufenden Auffanggerät, welches nachfolgend als Läufer bezeichnet wird. Das Seil kann mittels Seil-Endverbindungen, einem Seilspanner und Befestigungselementen an einem Bauwerk oder Ähnlichem befestigt sein. Ein Benutzer des Steigschutzsystems ist über einen Auffanggurt mit dem Läufer verbunden, der mit dem Benutzer mitläuft. Üblicherweise wird der Auffanggurt mit dem Klemmhebel des Läufers verbunden, der im Falle eines Absturzes des Benutzers sicherstellt, dass der Läufer am Seil des Steigschutzsystems klemmt, um so den freien Fall des Benutzers zu verhindern.Fall arrest systems usually consist of a rope, for example a wire rope, and a guided on the rope, trailing fall arrester, which is hereinafter referred to as a runner. The cable may be attached to a structure or the like by means of cable end connections, a cable tensioner and fastening elements. A user of the climbing protection system is connected via a safety harness with the runner, which runs along with the user. Usually, the safety harness is connected to the clamping lever of the runner, which, in the event of a user's fall, ensures that the runner is clamped to the rope of the fall arrest system so as to prevent the free fall of the user.
Ein solcher Läufer wird unter dem Produktnamen S.K.C. von der Firma Antec (zwischenzeitlich Firma Sperian Fall Protection), 35-37 rue de la Bidauderie, BP334, 18103 Vierzon, Frankreich, angeboten. Ein Karabinerhaken, welcher den Auffanggurt eines Benutzers mit dem Läufer verbindet, wird in einer Öse an einem Ende eines Klemmhebels befestigt. Der Klemmhebel ist drehbar im Läufer gelagert und wird bei einem Absturz durch den Zug, den der Auffanggurt auf ihn ausübt, verschwenkt, so dass der Exzenter des Klemmhebels gegen das in der Führungseinrichtung des Läufers geführte Seil drückt und der Läufer am Seil klemmt. Des Weiteren verschließt der Klemmhebel beim Einsatz des Läufers einen Spalt entlang der Führungseinrichtung, welcher zum Anbringen des Läufers am Seil geöffnet werden muss. Zusätzlich wird der Spalt beim Einsatz des Läufers durch einen Plastikhebel verschlossen, welcher erst zurückgeklappt werden muss, bevor der Läufer vom Seil abgenommen werden kann. Um ein unbeabsichtigtes Lösen des Läufers vom Seil zu verhindern, muss der Karabiner vom Läufer getrennt werden, da sonst der Klemmhebel nicht so weit verschwenkt werden kann, dass er den Spalt freigibt.Such a runner is offered under the product name SKC by Antec (now Sperian Fall Protection Company), 35-37 rue de la Bidauderie, BP334, 18103 Vierzon, France. A snap hook, which connects the harness of a user with the runner, is secured in an eyelet at one end of a clamping lever. The clamping lever is rotatably mounted in the rotor and is pivoted in a crash by the train which the safety harness exerts on him, so that the eccentric of the clamping lever presses against the guided in the guide device of the rotor rope and the runner clamps on the rope. Furthermore, the clamping lever closes when using the Runner a gap along the guide device, which must be opened for attaching the rotor on the rope. In addition, the gap is closed when using the runner by a plastic lever, which must first be folded back before the runner can be removed from the rope. To prevent unintentional release of the runner from the rope, the carabiner must be separated from the runner, otherwise the clamping lever can not be pivoted so far that it releases the gap.
Des Weiteren ist ein Läufer der oben beschriebenen Art allgemein bekannt, an welchem ebenfalls ein Karabinerhaken befestigt werden kann, der den Auffanggurt eines Benutzers mit dem Läufer verbindet. Um den Läufer am Seil anzubringen oder davon zu trennen, wird ein Verschlusshebel gelöst und ein Klemmhebel, an welchem der Karabinerhaken befestigt wird, wird nach oben geschwenkt. Im Falle eines Absturzes des Benutzers wird eine Klemmbacke des Klemmhebels gegen das Seil gedrückt. Ferner verschließt die Klemmbacke beim Einsatz des Läufers den Spalt entlang der Führungseinrichtung des Läufers.Furthermore, a runner of the type described above is generally known, to which also a snap hook can be attached, which connects the safety harness of a user with the runner. To attach the runner to the rope or to separate it, a locking lever is released and a clamping lever to which the snap hook is attached, is pivoted upwards. In the event of a user crash, a jaw of the clamping lever is pressed against the rope. Further, the jaw closes when using the rotor, the gap along the guide means of the rotor.
Ein Problem der Läufer für ein Steigschutzsystem der oben beschriebenen Art besteht darin, dass sie nicht zur Verwendung in einem Steigschutzsystem geeignet sind, dessen Seil durch Zwischenhalter an einem Bauwerk oder ähnlichem gesichert ist, da der Läufer nicht über solche Zwischenhalter bewegbar ist. Der Läufer muss von Hand an solchen Zwischenhaltern übergesetzt werden.A problem of the runners for a climbing protection system of the type described above is that they are not suitable for use in a fall arrest system whose rope is secured by intermediate brackets to a structure or the like, since the runner is not movable over such intermediate brackets. The runner must be transferred by hand to such intermediate holders.
In der
Der Erfindung liegt daher die Aufgabe zugrunde, einen Läufer für ein Steigschutzsystem bereitzustellen, der über Zwischenhalter des Steigschutzsystems bewegbar ist, wenn der Läufer am Seil gesichert ist, und der höhere Benutzersicherheit bietet als die bekannten Steigschutzsysteme.The invention is therefore an object of the invention to provide a runner for a climbing protection system that is movable over intermediate holder of the fall arrest system when the runner is secured to the rope, and provides higher user safety than the known fall arrest systems.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass der Läufer einen Schieber zum Öffnen und zumindest teilweisen Schließen eines Spalts der Führungseinrichtung aufweist, wobei der Schieber in die den Spalt zumindest teilweise schließende, erste Position vorgespannt ist, sowie eine erste Verriegelungseinrichtung, welche den Schieber in der den Spalt zumindest teilweise schließenden, ersten Position blockiert und die lösbar ist, um ein Verschieben des Schiebers in eine zweite Position, in der der Spalt offen ist, zuzulassen.According to the invention, this object is achieved in that the rotor has a slide for opening and at least partially closing a gap of the guide device, wherein the slider is biased into the gap at least partially closing, first position, and a first locking device, which the slider in the blocks the gap at least partially closing, first position and which is releasable to allow a displacement of the slider in a second position in which the gap is open.
Der Klemmhebel und der Schieber des Läufers arbeiten unabhängig voneinander. An dem nach außen vorstehenden Ende des Klemmhebels ist der Benutzer am Läufer angebunden. Der Klemmhebel wird im Allgemeinen durch eine Feder in seine Klemmposition vorgespannt, wobei das durch die Federkraft auf den Klemmhebel ausgeübte Drehmoment durch das entgegen gerichtete Drehmoment überwunden wird, das durch das Eigengewicht des Läufers erzeugt wird, wenn er am Auffanggurt entlang dem Seil nach oben gezogen wird. Der Schieber sichert den Läufer im Einsatz am Seil des Steigschutzsystems. Dadurch, dass der Schieber in die erste Position vorgespannt ist und die erste Verriegelungseinrichtung ihn in dieser Position blockiert muss der Benutzer den Schieber und die erste Verriegelungseinrichtung erst betätigen, um das Seil durch den Spalt der Führungseinrichtung zu bewegen.The clamping lever and the slide of the rotor work independently. At the outwardly projecting end of the clamping lever, the user is connected to the runner. The clamping lever is generally biased by a spring into its clamping position, wherein the force exerted by the spring force on the clamping lever torque is overcome by the opposing torque generated by the own weight of the rotor when pulled up the harness along the rope becomes. The slider secures the runner in use on the rope of the fall arrest system. The fact that the slider is biased to the first position and the first locking device blocks it in this position, the user must first actuate the slider and the first locking means to move the cable through the gap of the guide means.
In einer bevorzugten Ausführungsform der vorliegenden Erfindung schließt der Schieber beim Einsatz des Läufers den Spalt der Führungseinrichtung nicht vollständig. Die Spaltbreite beim Einsatz des Läufers ist dann so bemessen, dass sie einerseits kleiner ist als der Durchmesser des Seils und andererseits ausreichend groß ist, so dass der Läufer im gesicherten Zustand Zwischenhalter des Seils passieren kann. Dadurch muss der Läufer nicht vom Seil gelöst werden, um einen Zwischenhalter des Steigschutzsystems zu passieren, wodurch die Benutzersicherheit erhöht wird. Ferner wird ein Herausrutschen des Seils aus der Führungseinrichtung beim Einsatz des Läufers verhindert. Schließt dagegen der Läufer in einer alternativen Ausführungsform den Spalt der Führungseinrichtung vollständig, so lässt die erste Verriegelungseinrichtung dem Schieber ausreichend Spiel, um den Spalt der Führungseinrichtung so weit zu öffnen, dass der Läufer diesen passieren kann, wenn der Schieber an einen Zwischenhalter des Seils stößt.In a preferred embodiment of the present invention, the slider closes the gap of the guide means when using the rotor not completely. The gap width when using the rotor is then such that it is smaller on the one hand than the diameter of the rope and on the other hand sufficiently large, so that the runner can pass in the secured state intermediate holder of the rope. As a result, the runner does not have to be detached from the rope to pass an intermediate holder of the climbing protection system, whereby the user safety is increased. Furthermore, a slipping out of the rope from the guide device during use of the rotor is prevented. Conversely, if the runner completely closes the gap of the guide device in an alternative embodiment, the first locking device allows the slide sufficient clearance to open the gap of the guide device so far that the runner can pass it when the slide abuts an intermediate holder of the rope ,
Ein weiterer Vorteil des erfindungsgemäßen Läufers besteht darin, dass er in Steigschutzsystemen mit unterschiedlichen Seildurchmessern eingesetzt werden kann. In den USA werden üblicherweise Seile mit einem Durchmesser von 9,5 mm (3/8 Zoll) eingesetzt, wohingegen in Europa üblicherweise Seile mit einem Durchmesser von 8 mm oder 10 mm eingesetzt werden. Die Führungseinrichtung ist vorzugsweise so dimensioniert, dass Seile unterschiedlichen Durchmessers aufgenommen werden können. Der Schieber ist dann wiederum so dimensioniert, dass er einerseits den Spalt so weit öffnen kann, dass auch dickere Seile hindurchpassen, und dass er andererseits den Spalt so weit schließen kann, dass dünnere Seile beim Einsatz des Läufers nicht aus der Führungseinrichtung herausrutschen können. Ferner ist das erste Ende des Klemmhebels, welches bei einem Absturz des Benutzers dafür sorgt, dass der Läufer am Seil klemmt, so dimensioniert, dass er seine Klemmwirkung bei Seilen mit unterschiedlichem Durchmesser entfalten kann.Another advantage of the rotor according to the invention is that it can be used in climbing protection systems with different rope diameters. Ropes with a diameter of 9.5 mm (3/8 inch) are usually used in the USA, whereas in Europe usually ropes with a diameter of 8 mm or 10 mm are used. The guide device is preferably dimensioned so that cables of different diameters can be accommodated. The slider is then in turn dimensioned so that on the one hand it can open the gap so that even thicker ropes fit through, and on the other hand, it can close the gap so far that thinner ropes can not slip out of the guide means when using the rotor. Furthermore, the first end of the clamping lever, which ensures that the runner clamps on the rope in the event of a user's fall, is dimensioned so that it can unfold its clamping action on cables of different diameters.
Dabei kann der Klemmhebel unterschiedliche Formen besitzen. In einer ersten Ausgestaltung ist das erste Ende des Klemmhebels abgeknickt, so dass das erste Ende schräg nach unten zeigt, wenn der Läufer in einer vorgegebenen Orientierung auf das Seil aufgesetzt wird. Ferner ist das abgeknickte erste Ende des Klemmhebels derart abgerundet, dass der Punkt der Berührung des Seils eine exzentrische Bewegung ausführt, wenn sich der Klemmhebel in die Klemmposition bewegt. In einer zweiten Ausgestaltung besitzt der Klemmhebel eine symmetrische Form. Bevorzugt ist der Klemmhebel dann ankerförmig ausgestaltet, so dass der Klemmhebel entlang seiner Längsachse symmetrisch ist. Durch die symmetrische Form des Klemmhebel und insbesondere seines ersten Endes kann der Läufer in beide Richtungen als Absturzsicherung wirken, da sein erstes Ende im Falle eines Absturzes des Benutzers stets in eine Klemmposition bewegt wird. Somit muss beim Aufsetzen des Läufers auf das Seil nicht darauf geachtet werden, dass der Läufer in einer vorgegebenen Orientierung aufgesetzt wird.
Ein weiterer Vorteil der vorliegenden Erfindung besteht darin, dass der Läufer an jeder beliebigen Stelle auf das Seil des Steigschutzsystems aufgesetzt und wieder abgenommen werden kann, indem der Spalt geöffnet wird. Jedoch müssen wie oben beschrieben zum Öffnen des Spalts zwei Mechanismen betätigt werden, wodurch ein unbeabsichtigtes Lösen des Läufers vom Seil verhindert wird. Das heißt, erst wenn die erste Verriegelungseinrichtung gelöst ist, kann der Spalt durch ein Verschieben des Schiebers geöffnet werden. Wenn dagegen die erste Verriegelungseinrichtung den Schieber blockiert, kann ein unbeabsichtigtes Betätigen des Schiebers den Läufer nicht vom Seil lösen. Dadurch wird die Benutzersicherheit erhöht.
Die erste Verriegelungseinrichtung ist bewegbar ausgebildet, so dass sie in einer ersten Position den Schieber blockiert und in einer zweiten Position ein Verschieben des Schiebers zulässt. Vorzugsweise ist die erste Verriegelungseinrichtung mittels einer Feder in die erste Position vorgespannt, um aus Sicherheitsgründen den Schieber normalerweise zu blockieren. Erst wenn der Benutzer die erste Verriegelungseinrichtung entgegen der Federkraft in die zweite Position bewegt, kann der Schieber verschoben werden.
Besonders bevorzugt weist die erste Verriegelungseinrichtung einen Bolzen auf, der in seiner Längsrichtung einen Bereich verringerten Durchmessers besitzt und axial verschiebbar ist und ist am Schieber eine Rastnase vorgesehen, die so ausgebildet ist, dass der Bereich verringerten Durchmessers des Bolzens mit der Rastnase fluchtet, wenn der Bolzen gedrückt ist, um ein Verschieben des Schiebers in dessen zweite Position zuzulassen. Das heißt, um den Schieber bewegen zu können, muss der Bolzen derart verlagert werden, dass beim Betätigen des Schieber die Rastnase auf den Bereich verringerten Durchmessers des Bolzens trifft, so dass die Rastnase den Bolzen passieren kann. Die erste Verriegelungseinrichtung, welche einen Bolzen aufweist, funktioniert also derart, dass die Rastnase des Schiebers auf einen Bereich mit dem eigentlichen Bolzendurchmesser trifft, wenn die Verriegelungseinrichtung in der ersten Position ist, und auf einen Bereich verringerten Durchmessers trifft, wenn die Verriegelungseinrichtung in der zweiten Position ist.In this case, the clamping lever may have different shapes. In a first embodiment, the first end of the clamping lever is bent so that the first end is pointing downwards when the runner in a predetermined orientation is placed on the rope. Further, the kinked first end of the clamping lever is rounded so that the point of contact of the rope performs an eccentric movement when the clamping lever moves into the clamping position. In a second embodiment, the clamping lever has a symmetrical shape. Preferably, the clamping lever is then designed anchor-shaped, so that the clamping lever is symmetrical along its longitudinal axis. Due to the symmetrical shape of the clamping lever and in particular its first end of the rotor can act as a fall protection in both directions, since its first end is always moved in the event of a crash of the user in a clamping position. Thus, care must be taken when placing the runner on the rope that the runner is placed in a predetermined orientation.
Another advantage of the present invention is that the runner can be placed anywhere on the rope of the fall arrest system and removed again by the gap is opened. However, as described above, to open the gap, two mechanisms must be operated, thereby preventing inadvertent release of the traveler from the rope. That is, only when the first locking device is released, the gap can be opened by moving the slider. On the other hand, if the first locking device blocks the slider, inadvertent operation of the slider can not release the slider from the cable. This increases user security.
The first locking device is designed to be movable, so that it blocks the slider in a first position and permits a displacement of the slider in a second position. Preferably, the first locking device is biased by a spring in the first position to normally block the slider for safety reasons. Only when the user moves the first locking device against the spring force in the second position, the slider can be moved.
Particularly preferably, the first locking device has a Bolt, which has a region of reduced diameter in its longitudinal direction and is axially displaceable and is provided on the slide a detent which is formed so that the region of reduced diameter of the bolt is aligned with the latch when the bolt is pressed to move of the slider in its second position. That is, in order to move the slider, the bolt must be displaced so that upon actuation of the slide, the locking lug strikes the area of reduced diameter of the bolt, so that the locking lug can pass through the bolt. The first locking device, which has a bolt, thus functions such that the latching lug of the slider strikes a region with the actual bolt diameter when the locking device is in the first position and strikes a region of reduced diameter when the locking device in the second Position is.
In einer weiteren Ausführungsform des erfindungsgemäßen Läufers ist der Schieber im Wesentlichen rechtwinklig zu der Längsachse der Führungseinrichtung bewegbar und damit rechtwinklig zum Seil. Dadurch kann der Schieber so ausgebildet werden, dass er den Spalt auf der gesamten Länge der Führungseinrichtung zumindest teilweise verschließt. Dann lässt sich der Läufer besser entlang des Seils führen, da der Schieber ein Austreten des Seils aus der Führungseinrichtung sicher verhindert.In a further embodiment of the rotor according to the invention, the slider is movable substantially at right angles to the longitudinal axis of the guide device and thus at right angles to the cable. As a result, the slider can be formed so that it at least partially closes the gap over the entire length of the guide device. Then, the runner can better lead along the rope, since the slider reliably prevents leakage of the rope from the guide device.
Im Allgemeinen wirkt der Läufer nur in einer Richtung als Absturzsicherung und muss daher in der vorgegebenen Orientierung auf das Seil aufgesetzt werden. Das vordere Ende des abgeknickten Klemmhebels zeigt dabei schräg nach unten. Der Läufer weist dazu vorzugsweise eine zweite Verriegelungseinrichtung auf, die den Schieber in seiner ersten Position blockiert, wenn der Benutzer versucht, den Läufer in verkehrter Ausrichtung auf das Seil aufzusetzen; der Spalt lässt sich dann nicht öffnen, und der Läufer kann nicht auf das Seil gesetzt werden. Die zweite Verriegelungseinrichtung wird in einem Läufer eingesetzt, der bei einem schrägen oder vertikalen Steigschutzsystem nur in einer Richtung am Seil gesichert werden darf. Denn, würde der Läufer in der falschen Richtung am Seil gesichert werden, könnte der Klemmhebel im Falle eines Absturzes des Benutzers nicht mehr seine Wirkung entfalten. Die zweite Verriegelungseinrichtung besteht aus einem Verriegelungsstift, der im Gehäuse des Schiebers beweglich gelagert ist und der durch sein Eigengewicht in eine Bohrung im Gehäuse des Läufers fällt, wenn der Läufer in der falschen Orientierung auf das Seil gesetzt wird, wodurch der Schieber blockiert wird (anti upside-down). Um die Benutzersicherheit zu erhöhen sind zwei Bohrungen vorgesehen, in die der Verriegelungsstift fallen kann, um den Schieber zu blockieren. Eine erste Bohrung ist im Gehäuse so angeordnet, dass sich der Schieber in seiner zumindest teilweise geschlossenen Position befindet, wenn der Verriegelungsstift in die Bohrung fällt. Das heißt, die zweite Verriegelungseinrichtung stellt sicher, dass der Läufer ausschließlich in einer vorgegebenen Orientierung geöffnet werden kann, um ihn auf das Seil zu setzen. Diese Sicherung alleine ist aber nicht ausreichend, denn es wäre denkbar, dass ein Benutzer den Schieber in korrekter Orientierung öffnet, anschließend den Läufer (aus Versehen) umdreht und dann in der nun falschen Orientierung auf das Seil setzt. Der Läufer könnte also in falscher Orientierung auf das Seil gesetzt werden, und dann im Falle eines Absturzes nicht mehr seine Wirkung entfalten. Zudem würde der Verriegelungsstift in dieser Situation ein erneutes Öffnen des Schiebers verhindern. Um dies zu vermeiden, ist eine zweite Bohrung vorgesehen, die so angeordnet ist, dass sich der Schieber in seiner geöffneten Position befindet, wenn der Verriegelungsstift in die zweite Bohrung fällt. Dadurch wird sicher gestellt, dass der Läufer nur dann geschlossen werden kann, wenn sich der Läufer in der korrekten Orientierung relativ zum Seil befindet. Durch die beiden Bohrungen im Gehäuse des Läufers, verhindert der Verriegelungsstift jegliche Bedienung des Schiebers solange sich der Läufer in der verkehrten Orientierung befindet. Dadurch wird beim Benutzer einerseits ein Bewusstsein dafür geschaffen, den Läufer immer in der korrekten Orientierung zu bedienen. Andererseits ist es ihm aber auch gar nicht möglich, den Läufer falsch zu bedienen, wodurch die Benutzersicherheit erhöht wird. Die zweite Verriegelungseinrichtung ist jedoch nicht notwendig, wenn der Klemmhebel die oben beschriebene, symmetrische Form besitzt, da der Klemmhebel dann unabhängig davon, in welcher Richtung der Läufer auf das Seil gesetzt wird, seine Klemmwirkung entfalten kann.In general, the runner only acts in one direction as a fall protection and must therefore be placed in the predetermined orientation on the rope. The front end of the bent clamping lever shows obliquely downwards. The runner preferably has a second locking means for locking the slider in its first position when the user attempts to place the runner in an inverted orientation on the rope; the gap then can not be opened, and the runner can not be placed on the rope. The second locking device is used in a runner, which in an oblique or vertical climbing protection system only in one Direction on the rope may be secured. Because if the runner were secured in the wrong direction on the rope, the clamping lever could no longer be effective in the event of a user crash. The second locking device consists of a locking pin, which is movably mounted in the housing of the slider and which falls by its own weight in a bore in the housing of the rotor when the rotor is placed in the wrong orientation on the rope, whereby the slider is blocked (anti upside-down). To increase user safety, two holes are provided into which the locking pin can fall to block the slider. A first bore is disposed in the housing such that the slider is in its at least partially closed position when the locking pin falls into the bore. That is, the second locking device ensures that the runner can be opened only in a predetermined orientation to put it on the rope. However, this backup alone is not sufficient, because it would be conceivable that a user opens the slider in the correct orientation, then turns the runner (accidentally) and then sets in the wrong orientation on the rope. The runner could therefore be placed in the wrong orientation on the rope, and then in the event of a crash no longer unfold its effect. In addition, the locking pin would prevent reopening of the slide in this situation. To avoid this, a second bore is provided which is arranged so that the slider is in its open position when the locking pin falls into the second bore. This ensures that the runner can only be closed when the runner is in the correct orientation relative to the rope. Through the two holes in the housing of the rotor, the locking pin prevents any operation of the slider as long as the runner is in the wrong orientation. On the one hand, this creates an awareness on the part of the user to always operate the runner in the correct orientation. On the other hand, it is also not possible for him, the runner to operate incorrectly, causing user safety is increased. However, the second locking device is not necessary when the clamping lever has the above-described symmetrical shape, since the clamping lever can then develop its clamping effect regardless of the direction in which the rotor is placed on the rope.
Vorzugsweise weist der Klemmhebel an seinem zweiten Ende eine Anschlagöse und einen Falldämpfer auf. In der Anschlagöse kann der Karabiner befestigt, welcher den Auffanggurt eines Benutzers mit dem Läufer verbindet. Vorteilhafterweise muss der Karabiner bei einem Öffnen oder Schließen des Spalts der Führungseinrichtung nicht entfernt werden, da der Klemmhebel gemäß der vorliegenden Erfindung nur die Funktion einer Bremse für den Läufer ausübt und nicht gleichzeitig als Verschluss für den Spalt eingesetzt wird. Das heißt, der Klemmhebel muss gemäß der vorliegenden Erfindung nicht erst in eine vorbestimmte Position bewegt werden, um den Spalt der Führungseinrichtung öffnen zu können. Das Öffnen und Schließen des Spalts wird durch den Schieber und die erste Verriegelungseinrichtung gesteuert, welche unabhängig vom Klemmhebel sind.Preferably, the clamping lever has a stop lug and a fall damper at its second end. In the lifting eye of the carabiner can be attached, which connects the safety harness of a user with the runner. Advantageously, the carabiner need not be removed when opening or closing the gap of the guide means, since the clamping lever according to the present invention only performs the function of a brake for the rotor and is not used simultaneously as a closure for the gap. That is, according to the present invention, the clamp lever need not be moved to a predetermined position first to open the gap of the guide means. The opening and closing of the gap is controlled by the slider and the first locking device, which are independent of the clamping lever.
Der Falldämpfer sorgt für eine Dämpfung des Fangstoßes im Falle eines Absturzes des Benutzers, wenn der Läufer ruckartig am Seil festklemmt. Dabei kann der Falldämpfer an dem nach außen vorstehenden Ende des Klemmhebels befestigt oder darin integriert sein. Geeignete Falldämpfer sind in der
Der erfindungsgemäße Läufer kann insbesondere aus Edelstahl, Kunststoff oder Aluminium hergestellt sein.The rotor according to the invention may in particular be made of stainless steel, plastic or aluminum.
Der erfindungsgemäß Läufer entspricht der Norm DIN EN 353-1/A1 (Persönliche Schutzausrüstung gegen Absturz - Teil 1: Mitlaufende Auffanggeräte einschließlich fester Führung; Deutsche Fassung EN 353-1:2002/prA1:2007).The rotor according to the invention complies with the standard DIN EN 353-1 / A1 (Personal protective equipment against falling - Part 1: On-board fall arrest devices including fixed guidance, German version EN 353-1: 2002 / prA1: 2007).
Die Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert.
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Figuren 1 und 2 sind Schnittansichten eines Läufers mit einem Klemmhebel in der nicht klemmenden Position bzw. in Klemmposition, wobei dieFig. 1 und 2 nur die Funktion des Klemmhebels erläutern sollen. -
Figur 3 ist eine Schnittansicht eines Läufers mit in beiden Richtungen wirkendem Klemmhebel. -
Figuren 4 und 5 zeigen den Läufer, wobei der Spalt der Führungseinrichtung teilweise geschlossen bzw. offen ist. -
Figuren 6 und 7 zeigen in einer Seitenansicht eine erste Verriegelungseinrichtung des Läufers, wobei der Schieber blockiert bzw. freigegeben ist. -
Figur 8 zeigt den erfindungsgemäßen Läufer, wenn er über einen Zwischenhalter für das Seil eines Steigschutzsystems läuft. -
Figuren 9 und 10 zeigen eine zweite Verriegelungseinrichtung bei korrekter bzw. verkehrter Orientierung des Läufers. -
Figur 11 zeigt den Läufer, wobei die beiden Bohrungen im Gehäuse des Läufers für die zweite Verriegelungseinrichtung zu sehen sind.
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Figures 1 and 2 are sectional views of a rotor with a clamping lever in the non-clamping position or in the clamping position, wherein theFig. 1 and 2 only explain the function of the clamping lever. -
FIG. 3 is a sectional view of a rotor with acting in both directions clamping lever. -
FIGS. 4 and 5 show the rotor, wherein the gap of the guide device is partially closed or open. -
FIGS. 6 and 7 show in a side view a first locking device of the rotor, wherein the slider is blocked or released. -
FIG. 8 shows the rotor according to the invention, when it runs over an intermediate holder for the rope of a climbing protection system. -
FIGS. 9 and 10 show a second locking device with correct or wrong orientation of the rotor. -
FIG. 11 shows the rotor, the two holes are seen in the housing of the rotor for the second locking device.
Der Läufer 10 ist Teil eines Steigschutzsystems und wird entlang eines Seils S geführt. Bei einem Absturz eines Benutzers klemmt der Läufer 10 am Seil S. Der Läufer 10 weist ein rechteckförmiges Gehäuse 12, eine Führungseinrichtung 14 in Form eines Kanals entlang der einen Längsseite des Gehäuses 12, einen Klemmhebel 16 mit Anschlagöse 24 und eine erste und zweite Verriegelungseinrichtung 50, 80 auf. Der Klemmhebel 16 ist drehbar im Läufer 10 gelagert und wird in Läufern eingesetzt, die für ein Steigschutzsystem mit einem schräg oder vertikal gespannten Seil S vorgesehen sind.The
Der Klemmhebel 16 der
Die Dimensionierung der Führungseinrichtung 14 ist für Seile S mit unterschiedlichem Durchmesser (z.B. 8 mm, 10 mm, 3/8 Zoll) geeignet. Damit der Klemmhebel 16 im Einsatz des Läufers 10 auch dickere Seile S in der Führungseinrichtung 14 nicht berührt, muss das Verhältnis zwischen der Federkraft der Klemmhebelfeder 20 und dem Eigengewicht des Läufers 10 entsprechend gewählt werden.The dimensioning of the guide means 14 is suitable for ropes S of different diameters (e.g., 8 mm, 10 mm, 3/8 inches). So that the clamping
Wie in den
As in the
Die Führungseinrichtung 14 ist ein Kanal mit einem durchgehenden seitlichen Spalt 38. Durch einen Schieber 40 kann der Spalt 38 geöffnet oder teilweise geschlossen werden. Die erste Verriegelungseinrichtung blockiert den Schieber 40 normalerweise in der teilweise geschlossenen Position des Spalts 38.The
Der Schieber 40 ist in
Schraubendruckfedern 46 für den Schieber 40 sind zwischen einem Gehäuseteil 48 des Läufers 10 und dem Schieber 40 angeordnet. Wie aus
Dabei ist der Bewegungsweg des Schiebers 40 so groß, dass der Läufer 10 einerseits auf ein Seil S mit einem verhältnismäßig großen Durchmesser (z.B. 10 mm) aufgesetzt werden kann und der Läufer 10 andererseits im teilweise geschlossenen Zustand des Spalts 38, wie er in
The path of movement of the
Dabei ist der Spalt 38 immer dann teilweise verschlossen, wenn der Benutzer den Bolzen 52 oder den Schieber 40 nicht betätigt. Denn sowohl der Bolzen 52 als auch der Schieber 40 werden mittels Schraubendruckfedern 46 beziehungsweise 54 in ihre jeweils erste Position vorgespannt.In this case, the
Wie in den
Befindet sich der Läufer 10 jedoch in umgekehrter Orientierung relativ zum Seil S (
Claims (12)
- Shuttle for a climbing protection system, in which the shuttle (10) is guided along a cable (S) and grips the cable (S) if a user falls, with a guiding mechanism (14) for the cable (S),
a rotatably mounted clamping lever (16; 32) which has a cam (22) at a first end and an anchor point (24) at a second end, and
a slider (40) for opening and at least partly closing a gap (38) in the guiding mechanism (14), through which the shuttle can be attached to the cable,
wherein the slider (40) is pretensioned into the first position at least partly closing the gap (38), and
wherein the gap (38) in its at least partly closed position allows the shuttle to pass through at intermediate fastenings of the cable,
characterized by
a first locking device (50) which blocks the slider (40) in the first position at least partly closing the gap (38) and which can be released in order to allow the slider (40) to move into a second position in which the gap (38) is open. - Shuttle according to claim 1, wherein the first locking device (50) blocks the slider (40) in a first position and in a second position allows a movement of the slider (40).
- Shuttle according to claim 2, wherein the first locking device (50) is pretensioned into the first position by means of a spring (54).
- Shuttle according to one of claims 2 or 3, wherein the first locking device (50) has a pin (52) which has an area (52a) of reduced diameter in its longitudinal direction and can be moved axially, with the result that the area (52a) of reduced diameter is aligned with a detent lug (60) on the slider (40), in order to allow the slider (40) to move into its second position.
- Shuttle according to one of the previous claims, wherein the slider (40) can be moved substantially perpendicularly to the guiding mechanism (14).
- Shuttle according to one of the previous claims, wherein the first end of the clamping lever (16) is bent with the result that the first end points downwards at an angle when the shuttle (10) is attached to the cable (S) in a predetermined orientation, and is rounded off in such a way that it carries out an eccentric movement when the clamping lever (16) moves into a clamping position.
- Shuttle according to one of the previous claims, further comprising a second locking device (80) which can be moved by its own weight in order to block a movement of the slider (40) when it is attached to the cable (S) in a wrong orientation.
- Shuttle according to claim 7, wherein the second locking device (80) is a bolt (82), which can be moved into a hole (90) in order to block a movement of the slider (40).
- Shuttle according to one of claims 1 to 5, wherein the clamping lever (32) is formed symmetrical to its longitudinal axis.
- Shuttle according to one of the previous claims, wherein the second end of the clamping lever (16, 32) comprises an attachment eye (24) and a clamping element (28).
- Shuttle according to one of the previous claims, further comprising at least one clamping lever spring (20) for pretensioning the clamping lever (16; 32).
- Climbing protection system, comprising a shuttle (10) according to one of the previous claims.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08803986T PL2200702T3 (en) | 2007-09-13 | 2008-09-11 | Rope grab for a fall protection system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007012804U DE202007012804U1 (en) | 2007-09-13 | 2007-09-13 | Fall Protection System |
PCT/EP2008/062019 WO2009037173A1 (en) | 2007-09-13 | 2008-09-11 | Rope grab for a fall protection system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2200702A1 EP2200702A1 (en) | 2010-06-30 |
EP2200702B1 true EP2200702B1 (en) | 2011-02-16 |
Family
ID=40019240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08803986A Not-in-force EP2200702B1 (en) | 2007-09-13 | 2008-09-11 | Rope grab for a fall protection system |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP2200702B1 (en) |
AT (1) | ATE498430T1 (en) |
AU (1) | AU2008300650B9 (en) |
BR (1) | BRPI0816764A2 (en) |
CA (1) | CA2698433C (en) |
DE (2) | DE202007012804U1 (en) |
DK (1) | DK2200702T3 (en) |
ES (1) | ES2362039T3 (en) |
NZ (1) | NZ583922A (en) |
PL (1) | PL2200702T3 (en) |
WO (1) | WO2009037173A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102084693B1 (en) * | 2018-10-29 | 2020-03-04 | 강명석 | Transfer apparatus for life line |
US11406851B2 (en) | 2020-01-17 | 2022-08-09 | Honeywell International Inc. | Fall protection locking system |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0915277D0 (en) * | 2009-09-02 | 2009-10-07 | Latchways Plc | Safety line traveller |
JP5427955B2 (en) | 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 | Energy absorber |
LU91886B1 (en) * | 2011-10-14 | 2013-04-15 | Capital Access Sarl | Vertical and / or inclined lifeline system |
US9168402B2 (en) | 2012-07-18 | 2015-10-27 | D B Industries, Llc | Rope grab |
US9132297B2 (en) | 2012-07-18 | 2015-09-15 | D B Industries, Llc | Rope grab |
USD764258S1 (en) | 2013-05-10 | 2016-08-23 | 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 |
USD739212S1 (en) | 2013-05-10 | 2015-09-22 | D B Industries, Llc | Housing of a rope grab |
CN103771047B (en) * | 2014-01-07 | 2015-12-02 | 宁波北仑国际集装箱码头有限公司 | A kind of case top safe fall-proof locking bar |
WO2016093850A1 (en) | 2014-12-12 | 2016-06-16 | Honeywell International Inc. | Shuttle for a climbing protection system |
EP3432992B1 (en) | 2016-03-23 | 2020-09-09 | Honeywell International Inc. | Shuttle for a climbing protection system |
CN108704223B (en) * | 2018-08-15 | 2023-07-28 | 内蒙古工业大学 | Rope slowly lowering device |
PL431297A1 (en) * | 2019-09-27 | 2021-04-06 | Cbr Rock Master Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa | Anchoring device |
US20230405365A1 (en) * | 2022-06-17 | 2023-12-21 | Werner Co. | Cable grab |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2810928A1 (en) * | 1978-03-14 | 1979-09-27 | Moser Kurt | Fall prevention safety device on building roof - provides connection to wire cable by sliding clamping lock |
US4542884A (en) * | 1983-06-06 | 1985-09-24 | Dodge Jr Cleveland E | Removable double action rope grip |
DE3531391A1 (en) * | 1985-09-03 | 1987-03-12 | Bornack Herbert Fa | Fall brake |
DE8606240U1 (en) * | 1986-03-07 | 1986-04-24 | Lorenz Hasenbach GmbH & Co KG, 6277 Bad Camberg | Fall protection runners for fall protection rails |
DE29501716U1 (en) | 1995-02-03 | 1995-03-16 | Söll GmbH, 95028 Hof | Fall arrest system |
FR2736273A1 (en) * | 1995-07-03 | 1997-01-10 | Sk Sarl | MOBILE FALL PROTECTION FOR LOCKING SUPPORT |
DE29805788U1 (en) | 1998-03-30 | 1998-07-30 | Söll GmbH, 95028 Hof | Fall arrest system |
GB2398821B (en) * | 2003-02-26 | 2005-01-05 | Central | Safety device |
WO2005044383A1 (en) * | 2003-10-21 | 2005-05-19 | Uniline Safety Systems Limited | Fall arrest device and system incorporating the same |
GB0328937D0 (en) * | 2003-12-13 | 2004-01-14 | Checkmate Uk Ltd | Lifeline trolley |
-
2007
- 2007-09-13 DE DE202007012804U patent/DE202007012804U1/en not_active Expired - Lifetime
-
2008
- 2008-09-11 BR BRPI0816764 patent/BRPI0816764A2/en not_active IP Right Cessation
- 2008-09-11 PL PL08803986T patent/PL2200702T3/en unknown
- 2008-09-11 DK DK08803986.2T patent/DK2200702T3/en active
- 2008-09-11 ES ES08803986T patent/ES2362039T3/en active Active
- 2008-09-11 EP EP08803986A patent/EP2200702B1/en not_active Not-in-force
- 2008-09-11 CA CA2698433A patent/CA2698433C/en not_active Expired - Fee Related
- 2008-09-11 WO PCT/EP2008/062019 patent/WO2009037173A1/en active Application Filing
- 2008-09-11 NZ NZ583922A patent/NZ583922A/en not_active IP Right Cessation
- 2008-09-11 AU AU2008300650A patent/AU2008300650B9/en not_active Ceased
- 2008-09-11 AT AT08803986T patent/ATE498430T1/en active
- 2008-09-11 DE DE502008002643T patent/DE502008002643D1/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102084693B1 (en) * | 2018-10-29 | 2020-03-04 | 강명석 | Transfer apparatus for life line |
US11406851B2 (en) | 2020-01-17 | 2022-08-09 | Honeywell International Inc. | Fall protection locking system |
US11701530B2 (en) | 2020-01-17 | 2023-07-18 | Honeywell International Inc. | Fall protection locking system |
Also Published As
Publication number | Publication date |
---|---|
EP2200702A1 (en) | 2010-06-30 |
PL2200702T3 (en) | 2011-07-29 |
DE502008002643D1 (en) | 2011-03-31 |
ATE498430T1 (en) | 2011-03-15 |
BRPI0816764A2 (en) | 2015-03-24 |
AU2008300650A1 (en) | 2009-03-26 |
AU2008300650B2 (en) | 2013-05-23 |
NZ583922A (en) | 2011-10-28 |
DK2200702T3 (en) | 2011-06-06 |
ES2362039T3 (en) | 2011-06-27 |
CA2698433A1 (en) | 2009-03-26 |
DE202007012804U1 (en) | 2009-02-12 |
CA2698433C (en) | 2015-10-20 |
AU2008300650B9 (en) | 2013-06-13 |
WO2009037173A1 (en) | 2009-03-26 |
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