EP2896431A1 - Appareil de protection contre les chutes - Google Patents

Appareil de protection contre les chutes Download PDF

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Publication number
EP2896431A1
EP2896431A1 EP15150048.5A EP15150048A EP2896431A1 EP 2896431 A1 EP2896431 A1 EP 2896431A1 EP 15150048 A EP15150048 A EP 15150048A EP 2896431 A1 EP2896431 A1 EP 2896431A1
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EP
European Patent Office
Prior art keywords
cable guide
brake clamp
clamp body
cable
guide surface
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.)
Withdrawn
Application number
EP15150048.5A
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German (de)
English (en)
Inventor
Max Horn
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2896431A1 publication Critical patent/EP2896431A1/fr
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope

Definitions

  • the invention relates to a self-locking fall arrest device, which is to be used for ascending and descending or for lowering on a rope.
  • Rope clamps are connected by means of an eyelet using a karabiner with a climbing harness of a climber.
  • Most cable clamps have a movable cam that is pressed by a spring against the rope. This clamping cam has on its surface gripping spikes, which penetrate in the event of a fall in the fibers of the rope and thus cause a clamping action, whereby the crash of the climber is prevented. Since the cable clamps have no redundancy, it has come several times to serious accidents.
  • a fall arrest device which has two clamping lugs movable about parallel axes of rotation, which each have a toothed surface and press in a clamping position against the cable.
  • the clamping cams are coupled together by a fixed connecting rod so that they always move in parallel.
  • a plurality of individual axes movable about parallel axes of rotation which are fixedly coupled to each other via a common coupling rod, so that they press together against the rope in a securing position.
  • a self-locking drainage device is used in some climbing gyms.
  • the device includes a housing which is secured to a certified stopper vertically above a desired abseil point and in which a spring-loaded, about a rotation axis rotatable pulley is arranged.
  • the pulley is used to hold a connectable with a climbing harness of a climber wire.
  • the device allows unobstructed climb of the climber, wherein the wire rope is continuously wound on the pulley due to rotation of the pulley in a first direction, which is caused by the force acting on the pulley spring force.
  • the pulley In the event of a crash of the climber, the pulley is offset by the weight of the climber against the force acting on the pulley spring force in a rotation in a direction opposite to the second direction second direction.
  • the wire rope is unwound from the pulley and the climber (at a speed of about 1 m / s) slowly and controlled drained to the ground.
  • the device is only suitable for use in climbing gyms because it requires a standardized fixation, which still has to be positioned vertically above the desired abseiling point. Furthermore, the length of the climbing route to be secured with the aid of the device is limited by the length of the wire rope. Moreover, the device has a high dead weight and is also weather-prone.
  • the self-locking fall protection device which can be used for safe ascension and descent on a rope, has a cable guide element, a first brake clamp body and a second brake clamp body.
  • a rope suitable for use with the self-locking fall arrest device may be an elongated, pliable elastic element made of a plurality of natural fibers, synthetic fibers and / or wires, which may be used to transmit tensile forces.
  • the rope can also be designed as a double strand.
  • the cable guide element, the first brake clamp body and / or the second brake clamp body is / are preferably made of an abrasion-resistant material that is as little as possible susceptible to wear by cable friction and at the same time the lowest possible weight having.
  • an aluminum alloy or a stainless steel alloy may be used to manufacture the cable guide member, the first brake clamp body, and / or the second brake clamp body, which components may be made of the same material or different materials.
  • the first and the second brake clamp body of the fall protection device are each configured to occupy at least a first operating state or a second operating state.
  • the first and second brake clamp bodies permit relative displacement between the self-locking fall arrest device and the cable which is guided between the brake clamp bodies and the cable guide element. Consequently, when the first and second brake clamp bodies are in their first operating condition, they allow unhindered rope travel, so that either the self-locking fall protection device can be displaced relative to the rope by a climber ascending or descending automatically on the rope without appreciable force can be moved without appreciable force relative to the self-locking fall arrest device.
  • An operating state of the self-locking fall arrest device in which both the first and second brake clamp bodies are in their first operating state, is referred to below as the ascent / descent operation state.
  • the first and second brake clamp bodies press the cable against a braking surface on the cable guide element and thereby exert a braking effect on the cable.
  • the braking surface can be formed in the simplest case preferably by a part of the cable guide surface.
  • a brake body, brake block or the like can be mounted on the cable guide element, which has the braking surface.
  • the braking surface need not be a flat surface, but in principle any suitable, for. B. have rounded or concave shape, in particular, if this is better for the cable guide.
  • the first and second brake clamp bodies prevent relative displacement between the self-locking fall arrest device and the cable which is guided between the brake clamp bodies and the cable guide element.
  • the self-locking fall arrest device redundancy, ie an intrusion protection by duplication of the critical element of the safety chain, in this case, the brake clamp body.
  • a crash of secured by means of self-locking fall protection device during the ascent or descent on a rope climber is thus particularly safe and reliable prevented.
  • An operating state of the self-locking fall arrest device, in which both the first and the second brake clamp body is in its second operating state, is referred to below as fall protection operating state.
  • the self-locking fall protection device may still be in a so-called descent mode, namely, when, as will be explained in more detail below, one of the two brake clamp body is in its first operating state, while the other of the two brake clamp body is in its second operating state ,
  • At least one brake clamp body is movable relative to the cable guide element between its first and its second operating state independently of the other brake clamp body.
  • the first brake clamp body can then z. B. in its first operating state and allow unhindered running of the guided between the brake clamp bodies and the cable guide member rope while the second brake clamp body is in its second operating state and presses the cable against the cable guide element.
  • z. B. also the first brake clamp body are in its second operating state and press the cable against the cable guide element, while the second brake clamp body is in its first operating state and allows unimpeded running of the guided between the brake clamp bodies and the cable guide element rope.
  • the braking effect exerted on the cable is less than in the fall protection operating state of the self-locking fall protection device, in which both brake clamp bodies are in their second operating state and press the cable against the cable guide element.
  • the fall protection device is therefore particularly suitable to secure a climber who slowly and controlled on the Rope rappels.
  • the self-locking fall arrest device can consequently be used not only for the automatic descent of a climber on the rope, but also for the controlled abseiling of the climber on the rope.
  • the self-locking fall protection device can be used in mountaineering, in high-altitude, crash-prone jobs, such as wind turbines, telecommunication masts, etc., as well as in any activity where a fall protection using a rope is desired.
  • the first brake clamp body and the second brake clamp body are preferably movable from their first to their second operating state by rotations in opposite directions of rotation relative to the cable guide element. If the rotation of the first brake clamp body during the transition from the first operating state to the second operating state in the clockwise direction, the rotation of the second brake clamp body is thus preferably in the transition from the first operating state to the second operating state counterclockwise. Conversely, the second brake clamp body can be converted by rotation in a clockwise direction from its first operating state to its second operating state, when the first brake clamp body is transferred by turning counterclockwise from its first operating state to its second operating state. It is understood that a same direction rotation of the two brake clamp body is possible, namely, when the first brake clamp body is transferred from its first operating state to its second operating state and the second brake clamp body is transferred from its second operating state to its first operating state, or vice versa.
  • the brake clamp body in its second operating state each press directly against the rope, ie they each have a braking surface which presses directly against the rope.
  • the cable guide element of the self-locking fall arrest device preferably has a first cable guide surface, which is adapted to prevent movement of the cable in a first direction.
  • the cable guide element of the self-locking fall protection device may have a second cable guide surface, which is adapted to prevent a movement of the cable in a direction different from the second direction.
  • the second direction is oriented perpendicular to the first direction.
  • the first and second cable guide surfaces then preferably extend perpendicular to each other, so that the first cable guide surface transversely, i.e., a movement of the cable. parallel to the second cable guide surface and the second cable guide surface prevents movement transversely, i. prevented parallel to the first cable guide surface.
  • the cable guide element may have an L-shaped cross-section.
  • the first brake clamp body of the self-locking fall protection device may have a third cable guide surface which extends in both the first and in the second operating state of the first brake clamp body relative to the, preferably parallel to the cable guide element formed on the second cable guide surface.
  • the first brake clamp body i. the third cable guide surface formed on the first brake clamp body thus has the orientation relative to the second cable guide surface formed on the cable guide element.
  • the third cable guide surface formed on the first brake clamp body is pressed over a large area in the sense of surface pressure against the cable, which in turn is pressed against the second cable guide surface formed on the cable guide element.
  • the second and the third cable guide surface are dimensioned and the first brake clamp body positioned such that the force exerted by the first brake clamp body in its second operating state on the cable compressive force causes a deceleration of the relative movement between the rope and the fall protection device, but no complete stoppage of this relative movement ,
  • the fall protection device can then be safely and comfortably operated in its Abseil istsschreib with a located in its second operating state first brake clamp body.
  • the different cable guide surfaces could otherwise be concave or otherwise formed in any suitable form for better cable guidance.
  • At least one braking surface which is formed for example by the cable guide surfaces or formed on one of the brake clamp body, a cross section perpendicular to a running direction of the rope (ie the direction in which the rope runs in the unclamped state by the fall protection device ) having a rounded concave shape.
  • the braking surface (or another cable guide surface), a kind of partial cylinder inner surface, wherein the cylinder axis extends in the running direction of the rope.
  • the braking surface or cable guide surface is substantially adapted to the round cross section of the rope, which is gentler for the rope.
  • the fall protection device has a rotatably mounted on a cable guide element lever.
  • a brake clamp body for example the aforementioned first brake clamp body, can be rotatably arranged on this lever and / or a brake clamp body can be rotatably attached to the cable guide element, which brake clamp body cooperates with a brake surface on the lever, for example on the brake clamp body arranged there.
  • the lever may include an eyelet for connecting the self-locking fall arrest device to a climber, the eyelet and the second rotation axis preferably being located in the region of two opposite ends of the lever.
  • a brake clamp body with a braking surface can be rotatably mounted on the cable guide element, wherein the brake clamp body cooperates with a braking surface on the lever, for example a braking surface on the (first) brake clamp body arranged there.
  • a fourth cable guide surface may be formed on the lever, which extends relative to the, preferably parallel to the first cable guide surface. Due to the interaction of the fourth cable guide surface formed on the lever with the first cable guide surface formed on the cable guide element, the cable can be securely guided between the lever and the cable guide element.
  • the fourth cable guide surface may also be attached to a separately formed from the lever element. The rope is then guided between the element formed separately from the lever, on which the fourth cable guide surface is formed, and the cable guide element.
  • the lever may include a first spring member configured to bias the lever to a position in which the fourth cable guide surface formed on the lever is positioned relative to the first cable guide surface and the second cable guide surface such that the cable is from the first cable guide surface , the second cable guide surface, the third cable guide surface and the fourth cable guide surface is guided.
  • the first lever position 1 the position which the lever occupies thereby is referred to as the first lever position 1.
  • the lever can be biased by the first spring element in the first lever position that the eyelet remains freely accessible, so that a carabiner can be passed through the eyelet. The attached carabiner ensures that the lever remains in the first lever position.
  • the fall arrest device is constructed so that the lever can be brought by manual force into a position in which the first brake clamp and the eyelets have a maximum distance from the second cable guide surface, so that the rope can be placed freely on the first cable guide surface ,
  • This position is referred to as a cable mounting position.
  • the lever can be passed over the cable so that the third cable guide surface presses the cable against the second cable guide surface and the fourth cable guide surface pushes the cable parallel to the first cable guide Cable guide surface holds.
  • the rope is completely guided from all sides.
  • the first axis of rotation is disposed in a middle region of the lever disposed between the two opposite ends of the lever and offset from an imaginary connecting line between the second axis of rotation and the eyelet. It is thereby achieved that the first brake clamp body can be guided parallel to the second cable guide surface in the up / down operation state, in the fall operation state and in the abseiling operation state of the self-locking fall protection device.
  • the second brake clamp body of the self-locking fall protection device can be rotatably attached to the cable guide element about a third axis of rotation.
  • the third axis of rotation may extend perpendicular to the first cable guide surface formed on the cable guide element.
  • the second brake clamp body may comprise a stop element, which may extend from a surface of the second brake clamp body facing the cable guide element and be adapted to cooperate with a stop element of a stop element of the cable guide element in the first operating state of the second brake clamp body, to effect a relative movement between the second Limit brake clamp body and the cable guide element.
  • the stop element serves to prevent, in cooperation with the stop element in particular the stop edge of the cable guide element that the rope is clamped in the up / down mode of the self-locking fall protection device between the second brake clamp body and the cable guide element and thereby acted upon by a braking force.
  • the second brake clamp body may comprise a first cable guide stop on which a fifth cable guide surface is formed.
  • the fifth cable guide surface may extend in particular coplanar with the fourth cable guide surface formed on the lever.
  • a second cable guide stop, on which a sixth cable guide surface can be formed which can preferably extend parallel to the cable guide surface formed on the first cable guide stop, can be attached to the second brake clamp body.
  • the first and second cable guide stop and in particular provided on the cable guide stop fifth cable guide surface and the sixth cable guide surface provide for a particularly secure guidance of the rope.
  • the second brake clamp body can preferably also be provided with an edge, which is formed in an end region of the second brake clamp body facing the first brake clamp body and faces the cable, and presses the cable against the cable guide element in the second operating state. Unlike the first brake clamp body, which exerts a surface pressure on the cable in the second operating state, the second brake clamp body can then exert a locally limited, but therefore absolutely higher compressive force on the cable.
  • the second brake clamp body and the edge formed on the second brake clamp body are preferably dimensioned and positioned such that the pressure force exerted on the cable by the second brake clamp body in its second operating state causes a complete standstill of the relative movement between the cable and the fall protection device.
  • the above-described edge may have various embodiments, for example, it may be rounded or executed in the form of a second cable guide surface shaped tip.
  • This shaped tip is also referred to as a sharp tip.
  • the advantage of the sharp tip is a higher braking effect, whereas the advantage of the rounded edge in a rope gentler mode of action.
  • this edge may also preferably have a cross-section perpendicular to the running direction of the rope with a rounded concave shape (such as a circle segment). This applies regardless of whether the edge in the direction of the rope has a more rounded or a more pointed shape. Even such an adaptation of the edge to the round cross-section of the rope is gentler on the rope.
  • the second brake clamp body may comprise a second spring element which is adapted to bias the second brake clamp body into its first operating state.
  • the second spring element is preferably a compression spring which ensures that the second brake clamp body, in particular the edge formed on the second brake clamp body, is positioned in the up / down operation state of the self-locking fall arrest device so that the cable between the second brake clamp body, the Edge of the second brake clamp body, and the second cable guide surface can happen without much force.
  • the self-locking fall protection device can also be configured in one embodiment so that the cable guide element has a handle which is mounted in an end region of the cable guide element, which faces away from the second brake clamp body.
  • the handle may be arranged such that the first brake clamp body is located between the second brake clamp body and the handle.
  • the handle can be used particularly advantageously for transferring the self-locking fall protection device from the fall protection operating state into the descent operating state with the aid of a small force.
  • FIG. 1 shows a schematic representation of a first embodiment of a self-locking fall arrest device 100 in an up / down mode.
  • a fixture 1 to which a rope 2 is fixed.
  • This attachment may be, for example, a ceiling in a climbing gym, as well as a mount on the mountain, such as an ice screw or a rock hook.
  • any attachment that allows secure fixation of the rope 2 suitable.
  • the self-locking fall protection device 100 comprises a cable guide element 10 which has a first cable guide surface 11 and a second cable guide surface 12, wherein the second cable guide surface 12 is perpendicular to the first cable guide surface 11. It is also conceivable, however, another angle, only the first and second cable guide surface must guide the rope 2.
  • a lever 30 is attached via a second axis of rotation 33.
  • the lever 30 has on its side remote from the second axis of rotation 33 side an eyelet 32.
  • This eyelet 32 is used to attach the self-locking fall protection device 100 to a climbing harness of a climber using a carabiner 35 (this carabiner 35 is only in the FIGS. 6 and 7 shown) on the climber.
  • the term "climber” is here to understand any person who uses the self-locking fall protection device 100, ie secures himself with it.
  • the distance between the lever 30 and the first cable guide surface 11 is selected so that a used for hedging rope 2, between them fits.
  • this distance for use on a, preferably round, single rope is at least 8 mm. It is preferably at most 13 mm.
  • On the lever 30 is a first axis of rotation 31, by means of which a first brake clamp body 20 is rotatably mounted on the lever 30.
  • the lever 30, is rotatable about a second axis of rotation 33 on the cable guide element 10, that is attached to the first cable guide surface 11.
  • the first rotation axis 31 is arranged so that it is located between two opposite ends of the lever 30 in a central region of the lever 30, offset from an imaginary connecting line between the second axis of rotation 33 and the eyelet 32.
  • the first brake clamp body 20, the only the lever 30, but not attached to the cable guide member 10 is fixed so that a formed on the first brake clamp body 20 third cable guide surface 15 is positioned parallel to the second cable guide surface 12.
  • a fourth cable guide surface 14 is formed on the lever 30 and is formed by the side surface facing the cable 2 and extends opposite and parallel to the first cable guide surface 11 formed on the cable guide element 10.
  • a second brake clamp body 40 is rotatably mounted on the cable guide element 10, ie on the first cable guide surface 11, about a third axis of rotation 41.
  • the third axis of rotation 41 is attached in the area of one end of the second brake clamp body 40 facing the first brake clamp body 20.
  • the second brake clamp body 40 On this side, ie the side facing the first brake clamp body 20, the second brake clamp body 40 has a slightly rounded edge 44 in this embodiment.
  • the first operating state of the first brake clamp body 20 is characterized in that the first brake clamp body 20, a relative displacement between the self-locking fall protection device 100 and the rope 2 without significant force (the force is applied in the direction of arrow KH1 as in FIG. 1 shown), wherein the cable between the first brake clamp body 20 and the cable guide elements 11, 12, 15, 14 is guided.
  • the first axis of rotation 31 of the first brake clamp body 20 ensures that the first brake clamp body 20 is positioned substantially parallel to the cable 2.
  • the transition from the first operating state of the first brake clamp body 20 in the second operating state of the first brake clamp body 20 is characterized by a clockwise rotation relative to the cable guide member 10 and thereby possible that the first brake clamp body 20 is movable.
  • the transition from the first operating state to the second operating state of the first brake clamp body 20 is effected in that a rotation of the lever 30 about the second axis of rotation 33 in a clockwise direction, wherein, as stated by the first axis of rotation 31 ensures that the first brake clamp body 20 substantially positioned parallel to the cable 2 and in the second operating state of the first brake clamp body 20, only the contact pressure of the first brake clamp body 20 is increased to the cable 2.
  • the second brake clamp body 40 is movable between its first and second operating states by rotation about the third rotation axis 41. In its first operating state, the second brake clamp body 40 allows a relative displacement between the self-locking fall arrest device 100 and the cable 2. In its second operating state, the second brake clamp body 40 presses the cable 2 against the cable guide element 10, i. the second cable guide surface 12 of the cable guide element 10, and thereby exerts a braking effect on the cable 2.
  • the first and second brake clamp bodies 20, 40 are independently movable by rotation about their respective axes of rotation 33, 31, 41 relative to the cable guide member 10 between their first and second operating conditions.
  • the first brake clamp body 20 by rotation about the second axis of rotation 33 in Clockwise from its first transferred in its second operating state
  • the second brake clamp body 40 is transferred by a rotation about the third axis of rotation 41 in the counterclockwise direction from its first operating state in its second operating state.
  • the second brake clamp body 40 further comprises a stop element 43, which extends from a surface of the second brake clamp body 40 facing the cable guide element 10 and is adapted to cooperate with a stop edge 46 of the cable guide element 10 in the first operating state of the second brake clamp body 40 in order to establish a relative movement between the two second brake clamp body 40 to limit cable guide element 10, so that the cable 2 by the second brake clamp body 40 on the side facing away from the first brake clamp body 20 does not press the cable 2 against the second cable guide surface 12 and clamps it.
  • the second brake clamp body 40 has a first cable guide stop 42 on a side remote from the first brake clamp body 20.
  • a fifth cable guide surface 47 is formed, which extends coplanar with the formed on the lever 30 fourth cable guide surface 14.
  • a second cable guide stop is attached to the second brake clamp body 40, which extends parallel to the first cable guide stop 42 and positioned in the figures behind the first cable guide stopper and therefore can not be seen.
  • a sixth cable guide surface is formed, which extends parallel to the cable guide surface 47 formed on the first cable guide stop 42. The first and the second cable guide stop 42 serve to support the cable course within the self-locking fall protection device 100.
  • lever 30 is shown in a so-called lever operating position HP1, in which the self-locking fall protection device 100 can be used by a climber when ascending or descending the rope 2 for fall protection.
  • lever operating position HP1 there is also a cable mounting position HP2 (in FIG. 1 shown in dashed lines) in which the lever 30 is positioned so that the first brake clamp body 20 has a maximum distance from the second cable guide surface 12 and the Eyelet 32 is maximally removed from the second cable guide surface 12, so that the cable 2 can be placed unhindered on the first cable guide surface 11 and the second cable guide surface 12 and the lever 30 does not deny access to the first cable guide surface 11 and the second cable guide surface 12.
  • the cable 2 is placed between the cable guide stop 42 and the first cable guide surface 11, taking care that the cable 2 is guided between the second cable guide surface 12 and the second brake clamp body 40 along the edge 44, then the lever 30 is brought into the lever operating position HP1.
  • FIG. 1 shows the self-locking fall arrest device 100, as it is used by a climber in an automatic up or down. Therefore, this operation state is called up / down state.
  • the up / down operation state is characterized in that the first brake clamp body 20 is in its first operating state, as well as the second brake clamp body 40. In their first operating state, the brake clamp bodies 20, 40 allow the self-locking fall protection device 100 along the cable 2 in the direction of attachment 1 without greater force (the force is applied in the direction of KH1 upward, as in the FIG. 1 shown) happen. Likewise, in the up / down mode, it is possible to pull the cable 2 through the self-locking fall protection device 100 without any great force.
  • FIG. 2 shows FIG. 2 the self-locking fall arrester 100 according to FIG. 1 in a fall protection mode.
  • Fallfalltechnischs vulgarshov here is an operating state of the self-locking fall protection device 100 understood in which the first brake clamp body 20 and the second brake clamp body 40 are in their second operating state. In its second operating state, the first brake clamp body 20 presses the cable 2 against the second cable guide surface 12, this is done by a force KH2, which takes place in the downward direction, as in the FIG. 2 , will be shown.
  • the third cable guide surface 15 formed on the first brake clamp body 20 exerts a surface pressure on the cable 2.
  • the pressure of the first brake clamp body 20 is caused by the eyelet 32 of the lever 30 is pulled by an introduction of force of the climber, for example by a fall in the direction of an end portion of the cable guide member 10 which faces away from the cable guide stop 42. This pressure of the first brake clamp body 20 leads to a deceleration of the climber.
  • FIG. 3 is the self-locking fall arrest device 100 shown in Abseil vulgarsschreib.
  • the applied force occurs in a direction KH2 down, as in the FIG. 3 shown.
  • Abseil istsschreib the self-locking fall protection device 100
  • the first brake clamp body 20 is in its second operating state.
  • the second brake clamp body 40 is in its first operating state.
  • Abseil istsschreib the self-locking fall arrest device 100
  • the climber can control controlled at low speed on the rope 2.
  • the abseiling operation state can be brought about from the fall protection operation state by the climber canceling the clamping action of the second brake clamp body 40.
  • this direction of force is represented by the arrow K2) until the stop element 43 touches the stop edge 46, whereby the edge 44 no longer presses the cable 2 against the cable guide surface 12 and the second brake clamp body 40 is positioned parallel to the second cable guide surface 12.
  • the action of force in said directions of force K1, K2 can be achieved, for example, by the climber by grasping with one hand the self-locking fall protection device 100 in the area located between the cable guide stop 42 and the third axis of rotation 41, and cable guide surface 12 and second brake clamp body 40 So a very controlled abseiling with any intermediate stops is possible.
  • FIG. 4 shows a schematic representation of a second embodiment of a self-locking fall arrest device in an up / down mode.
  • the second embodiment of the self-locking fall protection device 100 has all the components and properties of the self-locking fall arrest device 100 described in detail according to FIG FIG. 1 on.
  • this embodiment has two further components.
  • a first spring element 34 is attached to the second rotation axis 33 in such a way that it independently pivots the lever 30 without external force into a position in which the lever 30 assumes the lever operating position HP1.
  • this first spring element 34 is that the lever 30 holds the cable 2 in a secure position after insertion of the cable 2, in which the cable 2 of the first, the second, the third and the fourth cable guide surface 11, 12, 14th , 15 is securely enclosed and guided.
  • this embodiment of the self-locking fall arrest device 100 has a second spring element 13 which is mounted such that it positions the second brake clamp body 40 so that the edge 44 does not press against the cable 2. This is achieved by a bias of the spring, wherein the force of the spring is chosen so that the edge 44 is prevented from jamming the rope 2.
  • the second spring element 13 may be formed for example in the form of a compression spring.
  • the advantage of this embodiment is that the edge 44 of the second brake clamp body 40 in the up / down operation, ie in the case when a force on the lever 30, which is directed in the direction of the cable guide stop 42 (in the FIG. 4 represented by the arrow KH1) of the self-locking fall protection device 100 generates no friction on the rope 2.
  • FIG. 5 shows a schematic representation of the self-locking fall arrest device according to FIG. 4 in a fall-prevention operation state, ie, the first brake clamp body 20 is in its second operation state, and the second brake clamp body 40 is also in its second operation state.
  • FIG. 6 shows a schematic representation of a third embodiment of a self-locking fall arrest device in an up / down mode.
  • a carabiner 35 connected to the eyelet 20 of the lever 30 is shown.
  • the carabiner 35 serves to attach the self-locking fall protection device 100 to a belt of the climber.
  • the embodiment shown here differs from that in FIG. 4 shown embodiment in two details.
  • a handle 16 is attached to the cable guide element 10 in an end region on one side, on which the lever 30 is located.
  • the advantage of this handle 16 is that the self-locking fall protection device 100 can be handled more comfortably by the climber and thus be operated more easily.
  • the low force climber may transfer the self-locking fall arrest device 100 from the fall protection mode to the descent mode.
  • this edge 45 preferably has a rounded, z. B. part-circular, concave cross section, which is adapted substantially to the roundish cross-section of the rope 2.
  • FIG. 7 shows a schematic representation of the self-locking fall arrest device according to FIG. 6 in a fall-prevention operation state in which the first brake clamp body 20 and the second brake clamp body 40 are in their second operating state.

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  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
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  • Emergency Lowering Means (AREA)
EP15150048.5A 2014-01-10 2015-01-02 Appareil de protection contre les chutes Withdrawn EP2896431A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201410100233 DE102014100233B3 (de) 2014-01-10 2014-01-10 Absturzsicherungsgerät

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EP2896431A1 true EP2896431A1 (fr) 2015-07-22

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EP15150048.5A Withdrawn EP2896431A1 (fr) 2014-01-10 2015-01-02 Appareil de protection contre les chutes

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DE (1) DE102014100233B3 (fr)

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WO2020047905A1 (fr) * 2018-09-06 2020-03-12 中车青岛四方机车车辆股份有限公司 Dispositif de surveillance d'état d'étrier de frein et véhicule ferroviaire équipé dudit dispositif

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034828A (en) 1975-04-14 1977-07-12 Rose Manufacturing Company Shock absorbing cable connector
DE2802832A1 (de) * 1978-01-23 1979-07-26 Kuninori Handa Abstiegs- und/oder rettungseinrichtung
CH641052A5 (en) * 1980-02-12 1984-02-15 Jaime Planas Guasch Braking device for descending with a rope
US4560029A (en) 1984-08-29 1985-12-24 Wgm Safety Corp. Security device
DE3722280A1 (de) 1986-07-07 1988-01-21 Petzl Ets Selbstsichernde steigklemme
GB2416386A (en) 2004-07-17 2006-01-25 John Arthur Walters Rope clamping device
DE102010063285A1 (de) * 2009-12-17 2011-06-22 Bornack GmbH & Co. KG, 74080 Mitlaufendes Auffanggerät
DE102012207224B3 (de) * 2012-04-30 2013-09-19 Bornack Gmbh & Co. Kg Sicherungsvorrichtung mit einer V-Nut

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034828A (en) 1975-04-14 1977-07-12 Rose Manufacturing Company Shock absorbing cable connector
DE2802832A1 (de) * 1978-01-23 1979-07-26 Kuninori Handa Abstiegs- und/oder rettungseinrichtung
CH641052A5 (en) * 1980-02-12 1984-02-15 Jaime Planas Guasch Braking device for descending with a rope
US4560029A (en) 1984-08-29 1985-12-24 Wgm Safety Corp. Security device
DE3722280A1 (de) 1986-07-07 1988-01-21 Petzl Ets Selbstsichernde steigklemme
GB2416386A (en) 2004-07-17 2006-01-25 John Arthur Walters Rope clamping device
DE102010063285A1 (de) * 2009-12-17 2011-06-22 Bornack GmbH & Co. KG, 74080 Mitlaufendes Auffanggerät
DE102012207224B3 (de) * 2012-04-30 2013-09-19 Bornack Gmbh & Co. Kg Sicherungsvorrichtung mit einer V-Nut

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