DE102023130385A1 - Clamping device for fall protection - Google Patents

Abstract

The invention relates to a fall protection system (1) for securing persons, comprising a safety rope (4) and at least one fastening device (2), wherein the fastening device (2) comprises a clamping device (14) for clampingly holding the safety rope (4). The clamping device (14) further comprises a clamping element (19) with a first bore (20) and a second bore (21) spaced from the first bore (20), wherein the clamping element (19) has at least a first threaded bore (22) for receiving a first screw (24) and a second threaded bore (23) for receiving a second screw (25), wherein the first threaded bore (22) is designed to open into the respective bore (20, 21) transversely to the first bore (20) and the second threaded bore (23) is designed to open into the respective bore (20, 21) transversely to the second bore (21), and wherein the safety cable (4) is guided through the first bore (20) and through the second bore (21) in its assembled state, wherein the safety cable (4) is pressed against a first bore inner surface (28) in the first bore (20) by means of the first screw (24) and against a second bore inner surface (29) in the second bore (21) by means of the second screw (25).

Description

The invention relates to a fall protection system which, when assembled, is intended for securing persons using a safety harness within a safety section. The fall protection system comprises a safety rope and at least one fastening device for fastening the safety rope. A person can connect his or her safety harness to the safety rope using a connecting element and is protected against falling by the connection to the safety rope.

In such fall protection systems, measures must be provided to cushion a possible fall of a person in order to cushion the fall or the arrest of the falling person in such a way that injuries to the falling person are minimized. In this context, the document EP2243519A1 a fall protection device with a safety rope forming a rope loop and a rope clamp for the adjacent ends of the rope loop bent into a ring-shaped rope loop, which brakes the pulling of the safety rope out of the rope loop. In order to create advantageous braking conditions, it is proposed that the rope clamp is composed of two clamping jaws, each of which forms a clamping receptacle for the ends of the rope loop of the safety rope designed as a steel rope, that the dividing surface of the clamping jaws runs between the two clamping receptacles and that a friction plate is provided between the two clamping jaws, separating the two ends of the rope loop from one another. This well-known fall protection device has the disadvantage that its assembly and maintenance is complicated and therefore expensive due to the large number of individual parts and individual elements included in the fall protection device.

Since such fall protection devices are intended in particular for personal safety, the object of the present invention is to overcome the disadvantages of the prior art and to provide a fall protection system which can be assembled and maintained in a simple and unambiguous or precise manner, while at the same time its production is economical due to its simple design.

This object is achieved by a device according to the claims.

• - einen Haltebügel mit einer ersten Befestigungslasche und einer zweiten Befestigungslasche, wobei die wenigstens eine erste Befestigungsvorrichtung an bzw. in Verwendung der ersten Befestigungslasche mittels eines Haltemittels an dem positionsfixiertem ersten Halteelement festlegbar bzw. fixierbar ist,
• - eine Klemmvorrichtung zum klemmenden Festhalten des ersten Endabschnittes des Sicherungsseiles, und
• - eine Koppelvorrichtung, welche Koppelvorrichtung mit dem Haltebügel und der Klemmvorrichtung gekoppelt und wenigstens an der zweiten Befestigungslasche gelagert ist.

The fall protection system according to the invention, which is provided in an assembled state for securing persons using a safety harness within a safety section, comprising a safety rope, preferably a steel rope, and at least one first fastening device for fastening or holding or clamping a first end section of the safety rope to a position-fixed first holding element. The position-fixed holding element can also be referred to as an anchor device or anchor point, wherein the at least one fastening device can be attached to the anchor point, i.e. fixed. The safety section extends from the at least one first fastening device in the direction opposite to the holding element. The at least one first fastening device comprising

• - a retaining bracket with a first fastening tab and a second fastening tab, wherein the at least one first fastening device can be fixed or secured to or in use with the first fastening tab by means of a holding means on the position-fixed first holding element,
• - a clamping device for clamping the first end section of the safety rope, and
• - a coupling device, which coupling device is coupled to the retaining bracket and the clamping device and is mounted at least on the second fastening tab.

• - dass die Klemmvorrichtung ein Klemmelement mit einer ersten Bohrung und einer, zur ersten Bohrung beabstandeten zweiten Bohrung umfasst, durch welche Bohrungen das Sicherungsseil hindurchführbar ist,
• - wobei das Klemmelement wenigstens eine erste Gewindebohrung zur Aufnahme einer ersten Schraube und eine zweite Gewindebohrung zur Aufnahme einer zweiten Schraube aufweist, wobei die erste Gewindebohrung quer zu einer ersten Bohrungslängsachse der ersten Bohrung und die zweite Gewindebohrung quer zu einer zweiten Bohrungslängsachse der zweiten Bohrung in die jeweilige Bohrung hineinmündend ausgebildet sind, wobei die Klemmvorrichtung weiters die zu den Gewindebohrungen zugeordnete Schrauben umfasst, und
• - wobei das Sicherungsseil im Montagezustand durch die erste Bohrung und durch die zweite Bohrung hindurchgeführt ist, wobei das Sicherungsseil in der ersten Bohrung mittels der ersten Schraube gegen eine erste Bohrungsinnenfläche und in der zweiten Bohrung mittels der zweiten Schraube gegen eine zweite Bohrungsinnenfläche angepresst ist.

It is also planned

• - that the clamping device comprises a clamping element with a first bore and a second bore spaced from the first bore, through which bores the safety cable can be passed,
• - wherein the clamping element has at least a first threaded bore for receiving a first screw and a second threaded bore for receiving a second screw, wherein the first threaded bore is designed to open into the respective bore transversely to a first bore longitudinal axis of the first bore and the second threaded bore is designed to open into the respective bore transversely to a second bore longitudinal axis of the second bore, wherein the clamping device further comprises the screws associated with the threaded bores, and
• - wherein the safety cable is guided through the first bore and through the second bore in the assembled state, wherein the safety cable is pressed against a first bore inner surface in the first bore by means of the first screw and against a second bore inner surface in the second bore by means of the second screw.

The design of the fall protection system according to the invention enables economical production of the clamping device in particular. The special design of the clamping device for the fall protection system also enables the fall protection system to be installed as easily as possible, since the clamping device can be delivered with the clamping element and the screws already pre-convectioned or pre-assembled, meaning that all of the screws intended for clamping the safety rope can be used during installation. This improves the safety of the fall protection system. Such systems for securing people are usually serviced or checked periodically. The particularly simple design of the clamping device and thus of the entire fall protection system also means that maintenance can be carried out particularly safely, since only a few screws need to be checked and only a few parts or components of the fall protection system need to be inspected. Furthermore, the improved economic efficiency of production also makes the storage of individual parts more economical, which allows parts to be replaced more quickly due to the corresponding stockpiles, thus increasing the service life or the service life of the system. This effect is particularly enhanced by periodic maintenance, since such systems are subjected to an inspection and, if necessary, appropriate maintenance at least once a year.

Furthermore, it can be useful if the clamping element is made from one piece. This can further increase the safety of the fall protection system, as the number of individual parts or components of the fall protection system is further reduced. This makes the system less prone to errors during assembly and maintenance.

Furthermore, it can also be provided that the clamping element has a cylindrical basic shape, whereby the holes through which the safety rope can be passed penetrate the cylinder surface or the cylinder jacket surface and whereby the threaded holes are provided in the area of the front end surfaces of the cylinder. It is advantageous that the rounding of the cylinder jacket surface is rounded towards the safety section when the fall protection system is assembled, so that the risk of injury in the area of the fastening device is reduced if a person falls.

Furthermore, it can be provided that the clamping element is made of an aluminum alloy and the screws and the safety rope are each made of iron alloys. This can have the advantageous effect of improving the damping properties of the clamping device in the event of a person falling. If a person falls and is caught by the fall protection system within the safety section, the fall pulls on the safety rope. Since the safety rope in the holes, or in particular in the first hole of the clamping element of the clamping device, is pressed against the first hole inner surface by means of the first screw, the safety rope can slip through the first hole if there is a corresponding pulling force from the person falling. This is at least until the safety rope has been pulled through the first hole so far that the safety rope is wrapped around the clamping element and the wrapping around the clamping element prevents the safety rope from slipping further. If the safety rope is made of a steel alloy and the clamping element is made of an aluminum alloy, the slipping of the safety rope through the first hole can be dampened to a certain extent. This can be achieved, for example, by removing material from the clamping element if the material is selected accordingly. In synergy with this, the safety of the fall protection system can be improved if the material is selected appropriately, as a person's fall is easier to detect with such material removal than would be possible without material removal.

Furthermore, it can be provided that a third threaded hole is formed transversely to the first longitudinal axis of the hole, spaced from the first threaded hole in the direction of the first longitudinal axis of the hole, for receiving a third screw, wherein the third threaded hole is designed to open into the first hole and wherein the clamping device further comprises the third screw associated with the third threaded hole. This further improves the safety of the fall protection system, since the third screw brings with it a corresponding redundancy. The clamping of the safety rope can also be increased in a simple manner without having to provide enlarged screws and associated threaded holes as an alternative.

Another advantageous embodiment is one in which the third threaded hole is designed to be axially parallel to the first threaded hole. This allows two advantageous types of clamping to be implemented. On the one hand, the safety cable can be held in the first hole by both screws, i.e. the first and the third screw, are clamped from the same side, as a result of which the safety rope is pressed in a direction against the inner surface of the hole. This deforms the safety rope as little as possible and the surface area of the safety rope that rests on the first inner surface of the hole is maximized so that the safety rope can rest along the entire length of the first hole. Alternatively, it is conceivable that the first screw is screwed into the respective threaded hole from a first side of the clamping element and the third screw is screwed into the respective threaded hole from a second side of the clamping element opposite the first side, so that the safety rope is clamped from two opposite sides. This can reduce the slipping of the safety rope because the opposing pressing induces an S-shaped deformation in the safety rope, which increases resistance to slipping when the safety rope slips in the event of a person falling. Accordingly, a further development of the fall protection system is possible and conceivably advantageous in which the third threaded hole on the clamping element is formed opposite the first threaded hole.

Furthermore, it can be useful if the first hole in the assembly position of the fall protection system is provided for clamping the safety section of the safety rope and that the second hole in the assembly position of the fall protection system is provided for clamping the first end section of the safety rope. In addition to advantageous redundancy of the clamping, this can ensure that in the event of a person falling, the safety rope is pulled through the first hole in such a way that a portion of the end section of the safety rope is pulled through the first hole until the clamping in the second hole becomes effective.

In addition, it can be provided that the screws each have a contact surface on one end that is closest to the safety rope in the assembly position of the fall protection system, whereby the contact surface is flat and aligned perpendicular to the respective screw axis. This allows a defined slipping of the safety rope in the event of a fall to be set by means of a corresponding tightening torque of the screws. Alternatively, an embodiment is also conceivable in which the screws have a contact surface that is conical. This means that, for example, the tip of the conical contact surface can be pressed into the safety rope, which can reduce the damping effect in the event of a fall, but improves the clamping of the safety rope by means of the clamping device.

Furthermore, it can be provided that the second hole is formed essentially axially parallel to the first hole, so that in the assembly position of the fall protection system a loop is formed from the first end section of the safety rope. As a result, when the safety rope slips through the first hole, the loop contracts until the clamp in the second hole takes effect and until a correspondingly smaller loop causes a shear clamp by deflecting the safety rope, thus easily preventing the safety rope from slipping further in the event of a fall. Furthermore, the appropriate design of the holes during assembly makes it easy to tension the safety rope or adjust the length of the safety rope.

According to a particular embodiment, it is possible for the holding bracket to be L-shaped in cross section, with the first fastening tab and the second fastening tab being aligned to one another at an angle from a range of 0° to 135°, in particular at an angle of 90°. This can, on the one hand, improve the cushioning of a fall, since a corresponding deformation of the holding bracket has an energy-absorbing effect. On the other hand, the holding bracket can also be used as a fall indicator, which further improves the safety of the fall protection system.

Furthermore, it can be expedient if the coupling device comprises a rod-shaped connecting element with a tensioning element, wherein the clamping element is coupled by means of the rod-shaped connecting element and by means of the tensioning element to the retaining bracket on the second fastening strap in such a way that the clamping device can be fixed in position at least in the direction opposite to a tensioning direction of the safety cable, so that the safety cable can be tensioned by means of the tensioning element in the direction of the retaining bracket or the tensioning direction. This also makes it easy to tension the safety cable by means of the fastening device. For example, this is advantageous because a steel cable in particular is subject to corresponding thermal expansion and may need to be re-tightened. In general, it is conceivably advantageous if the fastening device comprises the tensioning device, so that no further device is required when assembling the fall protection system.

Furthermore, it can be provided that the coupling device comprises a damping element, a guide carriage coupled to the holding bracket and displaceable on the holding bracket in the direction and in the direction opposite to a tensioning direction of the safety rope, and a rod-shaped connecting element coupled to the guide carriage, wherein the rod-shaped connecting element is mounted on the second fastening tab, is coupled to the guide carriage by means of a tensioning element and is coupled to the clamping element, so that the clamping device is operatively coupled to the damping element and the safety rope can be tensioned by means of the tensioning element in the direction of the holding bracket or the tensioning direction. The additional damping element can thus further dampen a person's fall in order to minimize possible injuries that may occur in the event of a fall.

In addition, it can be provided that the rod-shaped connecting element is a screw, a threaded rod or a bolt with at least one threaded section on one end of the bolt and that the clamping element is a threaded nut that can be coupled to the rod-shaped connecting element. This means that the design of the clamping element is as simple as possible, which promotes economical production of the fall protection system. Furthermore, handling during assembly and maintenance of the fall protection system is as simple as possible, since standard tools can be used.

Another advantageous embodiment is one in which the fall protection system can further comprise at least one fall indicator, wherein the at least one fall indicator is designed as a marking element that can be fixed to the safety rope and is positioned in the assembly position of the fall protection system on the safety rope in the safety section such that the marking element touches the clamping element. This improves the safety of the fall protection system, since a system that has already caught a fall can be identified as easily as possible.

According to a further development, it is possible for the fall protection system to comprise a second fastening device, which second fastening device can be fixed to a second position-fixed holding element spaced apart from the first position-fixed holding element, wherein the safety rope can be tensioned between the holding elements by means of the fastening devices, so that the safety section extends between the fastening devices.

This means that the simplest possible connecting device can be selected to connect a safety harness to the safety rope in the safety section, as the connecting device cannot slip off the safety rope as it is fixed between the two fastening devices. In contrast, in a fall protection system with only one fastening device, an appropriate connecting device must be selected which prevents the connecting device from slipping off the safety rope in the event of a person falling.

Furthermore, it can be expedient if the at least one first fastening device has a coupling device and that the second fastening device has a coupling device with a damping element. It is advantageous that the fall protection system can be produced cost-effectively, whereby two fastening devices can be provided at the same time and the damping of a person's fall is further improved by the coupling device with the damping element.

For a better understanding of the invention, it is explained in more detail with reference to the following figures.

• 1 eine mögliche Ausgestaltungsform einer ersten Befestigungsvorrichtung eines Absturzsicherungs-Systems;
• 2 eine mögliche Ausgestaltungsform einer zweiten Befestigungsvorrichtung des Absturzsicherungs-Systems;
• 3 eine Explosionsdarstellung der zweiten Befestigungsvorrichtung;
• 4 eine mögliche Ausgestaltungsform eines Absturzsicherungs-Systems.

They show in a highly simplified, schematic representation:

• 1 a possible embodiment of a first fastening device of a fall protection system;
• 2 a possible design of a second fastening device of the fall protection system;
• 3 an exploded view of the second fastening device;
• 4 a possible design of a fall protection system.

To begin with, it should be noted that in the different embodiments described, identical parts are provided with identical reference symbols or identical component designations, whereby the disclosures contained in the entire description can be transferred analogously to identical parts with identical reference symbols or identical component designations. The position information chosen in the description, such as top, bottom, side, etc., also refers to the figure directly described and shown, and these position information must be transferred analogously to the new position if the position changes.

In the 1 until 4 may be independent embodiments of the Fall protection system 1 or parts or components of the fall protection system 1, whereby in all representations of the 1 until 4 The same reference symbols or component designations are used for the same parts. To avoid unnecessary repetition, cross-references are made to the respective figure description.

In 1 a possible embodiment of a first fastening device 2 of the fall protection system 1 is shown. 2 shows independently a possible second fastening device 3 of the fall protection system 1, wherein 3 shows an exploded view of this second fastening device 3. In 4 Finally, a possible design of the fall protection system 1 is shown.

The fall protection system 1 can comprise a safety rope 4 and at least one first fastening device 2. The first fastening device 2 can be fixed or secured to a position-fixed first holding element 5. This position-fixed first holding element 5 can be fixed in position on a house roof, for example, and can possibly be designed as a rod, wherein the first fastening device 2 can be mounted or fixed, for example, on a free front end of the position-fixed first holding element 5. The first fastening device 2 is provided for holding or clamping or clampingly fastening a first end section 6 of the safety rope 4.

A possible assembly state of the fall protection system 1 can thus be produced by the first fastening device 2 being fixed to the position-fixed first holding element 5, a second fastening device 3, possibly structurally identical or similar in its design, being fixed to a position-fixed second holding element 7 spaced apart from the position-fixed first holding element 5, and a safety rope 4 being tensioned between the fastening devices 2, 3 by means of the fastening devices 2, 3, thereby defining a safety section which extends between the fastening devices 2, 3.

As from 4 It can be seen that the first fastening device 2 can be used to clamp a first end section 6 of the safety cable 4 and, analogously, the second fastening device 3 can be used to clamp a second end section 9 of the safety cable 4. The fastening devices 2, 3 can also be provided so that the safety cable 4 can be tensioned between the fastening devices 2, 3, at least within certain limits. This will be described in more detail below. As will be described in more detail below, the fastening devices 2, 3 can be structurally identical. However, it is also conceivable that the fastening devices 2, 3 are structurally different and are structurally identical only in their basic function, or that the fastening devices 2, 3 each comprise components that are structurally identical. In any case, the fastening devices 2, 3 can each be fixed to any position-fixed holding elements 5, 7, which is shown in the 1 and 2 with corresponding reference symbols for the position-fixed holding elements 5, 7.

In the following, the first fastening device 2 is preferably described, whereby components of this can also be structurally identical in the second fastening device 3, unless expressly stated otherwise. Subsequently, structurally identical components or identical component designations are identified with identical reference symbols in the illustrations.

Once the fall protection system 1 has been assembled, it can be used to secure a person using a safety harness 10 or personal protective equipment to protect against falls. For this purpose, for example, the person's safety harness 10 can be coupled or connected to the safety rope 4 within the safety section 8 using a connecting means 11 such as a carabiner, a rope clamp or the like. This allows the person to move along the safety rope 4 within the safety section 8, whereby the person is protected against falling.

Possibly also independently thereof, the first fastening device 2 for fastening or clamping or tensioning the safety rope 4 can comprise a retaining bracket 12, a coupling device 13 and a clamping device 14.

The retaining bracket 12 can have a first fastening tab 15 and a second fastening tab 16, wherein the at least one first fastening device 2 can be fixed to or in use with the first fastening tab 15 by means of a holding means 17 on the position-fixed first holding element 5. The retaining bracket 12 can also be designed such that it has an L-shape in cross section, wherein the first fastening tab 15 and the second fastening tab 16 are aligned with each other at an angle 34 of 90°. Furthermore, the clamp device 14 is provided for clamping or for clamping the safety rope 4. By means of the coupling device 13, the retaining bracket 12 and the clamping device 14 are coupled to one another in such a way that the coupling device 13 is mounted at least on the second fastening tab 16 in such a way that the coupling device 13 is fixed in the direction opposite to a tensioning direction 18 of the safety rope, so that the safety rope 4 can be tensioned between the first fastening device 2 and a second fastening device 3 in a fall protection system 1.

The clamping device 14 can have a clamping element 19 with a first bore 20 and a second bore 21 which is spaced apart from the first bore 20 and through which the safety cable 4 can be passed. The clamping element 19 can also have a first threaded bore 22 and a second threaded bore 23, the first threaded bore 22 being intended to receive a first screw 24 and the second threaded bore 23 being intended to receive a second screw 25. The first threaded bore 22 can be designed such that it is formed transversely to a first bore longitudinal axis 26 of the first bore 20 and opens into the first bore 20. The second threaded bore 23 can also be designed such that it is formed transversely to a second bore longitudinal axis 27 of the second bore 21 and opens into the second bore 21. The safety cable 4 can thus be guided through the first bore 20 and through the second bore 21 of the clamping element 19. The safety cable 4 can then be clamped in place by means of the first screw 24 by screwing the first screw 24 into the first threaded bore 22 in the first bore in such a way that the safety cable 4 in the first bore 20 is pressed against a first inner bore surface 28 by means of the first screw 24. In the same way, the safety cable 4 can be clamped in place by means of the second screw 25 by screwing the second screw 25 into the second threaded bore 23 in the second bore in such a way that the safety cable 4 in the second bore 21 is pressed against a second inner bore surface 29 by means of the second screw 25.

The clamping element can further have a third threaded bore 30, wherein the third threaded bore 30 can be designed such that it is formed transversely to the first bore longitudinal axis 26 of the first bore 20 and opens into the first bore 20. The clamping device 14 can further comprise a third screw 31, which third screw 31 is assigned to the third threaded bore 30. The safety cable 4 can be clamped in place by means of the third screw 31 by screwing the third screw 31 into the third threaded bore 30 in the first bore in such a way that the safety cable 4 in the first bore 20 is pressed against a first bore inner surface 28 by means of the third screw 31, in addition to the first screw 24. The clamping of the safety cable 4 in the first bore 20 is therefore redundant.

The screws 24, 25, 31 can each have a contact surface 32 on one end face, which respective contact surface 32 is aligned normal to the respective screw axis of the screws 24, 25, 31. In the assembly position, i.e. when the safety cable 4 is guided through the holes 20, 21 and the screws 24, 25, 31 are screwed into the respective threaded holes 22, 23, 30, the respective contact surface 32 of the screws 24, 25, 31 is closest to the safety cable 4 and the safety cable 4 is pressed with the respective contact surface 32 against the inner surfaces 28, 29 of the holes.

It can further be provided that the third threaded hole 30 is designed or arranged axially parallel to the first threaded hole 22, but an alternative design of the clamping element 19 is also conceivable in which the second threaded hole 30 can also be aligned transversely to the first hole 20 but not axially parallel to the first threaded hole 22. In any case, with an axially parallel alignment of the third threaded hole 30 to the first threaded hole 22, it is possible for the third threaded hole 30 to be arranged on a side of the clamping element 19 opposite the first threaded hole 22. As a result, the safety cable 4 can be clamped by means of the first screw 24 and the third screw 31 in such a way that the respective contact surfaces 32 of the screws 24, 31 are positioned opposite one another, whereby the safety cable 4 can be clamped in the first hole 20 opposite one another.

It can also be provided that a further threaded hole with an associated screw is provided for clamping the safety cable 4 in the second hole 21. In any case, the clamping of the safety cable 4 takes place in the first hole 20 and in the second hole 21 by means of the screws 24, 25, 31 provided for this purpose, wherein the first end section 6 of the safety cable 4 can be guided through the first hole 20 and then through the second hole 21 when the first fastening device 2 is mounted, so that a loop 33 is formed from the first end section 6 of the safety cable 4. The safety section 8 of the safety cable 4 is thus closest to the first hole 20, wherein furthermore the first The end of the safety rope 4 associated with the end section 6 is closest to the second hole 21 when viewed in the rope direction. It can be provided that the first hole 20 and the second hole 21 are axially parallel. However, this is not absolutely necessary since, for example, a different shape of the loop 33 can be formed by aligning the longitudinal axes 26, 27 of the holes at an oblique angle to one another, which can be advantageous for the damping behavior of the first fastening device 2 in the event of a person falling.

The end of the safety rope 4 can be protected from damage with a protective cap or protective cap, thus protecting a person from injury from the end of the safety rope 4 when handling in the vicinity of the fall protection system 1.

Due to the corresponding design of the screws 24, 25, 31, the clamping element 19 acts simultaneously as a rope clamp or rope fastening element and as a shock absorber, since with the appropriate tightening torque of the screws 24, 25, 31, the safety rope 4 is allowed to slip if a person falls. However, the slipping is progressively dampened by the contraction of the loop 33 during the fall, whereby the loop 33 finally contracts around the clamping element 19 and the safety rope 4 is prevented from slipping further.

In particular, it can be provided that the clamping device 14 comprises the clamping element 19 and the screws 24, 25, 31, wherein the clamping element 19 is formed in one piece. The clamping element 19 can be formed from an aluminum alloy. Furthermore, the safety cable 4 and the screws 24, 25, 31 as well as other components of the first fastening device 2 can be formed from iron or steel alloys. This material pairing also has a positive effect on the damping properties when the safety cable 4 slips through the first hole 20 in the event of a person falling.

As already mentioned, the safety rope 4 can also be tensioned within certain limits by means of the first fastening device 2. For this purpose, the coupling device 13 can comprise a rod-shaped connecting element 35 with a tensioning element 36, wherein the clamping element 19 can be coupled to the holding bracket 12 on the second fastening tab 16 by means of the rod-shaped connecting element 35 and by means of the tensioning element 36 in such a way that the clamping device 14 can be fixed in position at least in the direction opposite to the tensioning direction 18 of the safety rope 4. The safety rope 4 can therefore be tensioned by means of the tensioning element 36 in the direction of the holding bracket 12 or the tensioning direction 18.

To further cushion a person's fall, which fall is caught or braked or cushioned by the fall protection system 1, the coupling device 13 can further comprise a cushioning element 37 and a guide carriage 38. The guide carriage 38 can be coupled to the holding bracket 12 by means of the rod-shaped connecting element 35 and can be arranged on the holding bracket 12 so that it can be moved in the direction of and against the tensioning direction 18 of the safety cable 4. The rod-shaped connecting element 35 can also be mounted on the second fastening tab 16, coupled to the guide carriage 38 by means of the tensioning element 36 and coupled to the clamping element 19 so that the clamping device 14 is operatively coupled to the cushioning element 37 and the safety cable 4 can be tensioned by means of the tensioning element 36 in the direction of the holding bracket 12 or the tensioning direction 18. The rod-shaped connecting element 35 can be, for example, a screw, a threaded rod or a bolt with external threads on its front ends. The clamping element can be formed by a nut belonging to the rod-shaped connecting element 35 or an internally threaded nut.

The fall protection system 1 can further comprise a fall indicator 39, which is fixed to the safety rope 4 within the safety section 8 in such a way that the fall indicator 39 touches the clamping element 19 in the assembly position of the fall protection system 1. If the fall protection system 1 prevents a person from falling, the fall indicator 39 moves away from the clamping element 19 as the safety rope 4 slips through the first hole 20. This makes it possible to determine a previous fall when checking the fall protection system 1.

The embodiments show possible embodiment variants, whereby it should be noted at this point that the invention is not restricted to the specifically illustrated embodiment variants thereof, but rather various combinations of the individual embodiment variants with each other are also possible and this possibility of variation lies within the skill of the person skilled in the art in this technical field due to the teaching of technical action through objective invention.

The scope of protection is determined by the claims. The description and the drawings are, however, to be used to interpret the claims. Individual features or combinations of features from the different embodiments shown and described can represent independent inventive solutions in themselves. The task underlying the independent inventive solutions can be taken from the description.

Finally, for the sake of clarity, it should be noted that in order to better understand the structure, some elements have been shown not to scale and/or enlarged and/or reduced.

List of reference symbols

1

Fall protection system

2

first fastening device

3

second fastening device

4

Safety rope

5

position-fixed first holding element

6

first end section of the safety rope

7

Holding element

8th

Security section

9

second end section of the safety rope

10

Safety harness

11

Connecting elements

12

Retaining bracket

13

Coupling device

14

Clamping device

15

first fastening tab

16

second fastening tab

17

Holding device

18

Tension direction

19

Clamping element

20

first drilling

21

second hole

22

first threaded hole

23

second threaded hole

24

first screw

25

second screw

26

first bore longitudinal axis

27

second bore longitudinal axis

28

first bore inner surface

29

second bore inner surface

30

third threaded hole

31

third screw

32

Contact surface

33

Ribbon

34

angle

35

Connecting element

36

Clamping element

37

Damping element

38

Guide carriage

39

Fall indicator

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• EP 2243519 A1 [0002]

Claims (15)

Fall protection system (1) which, in an assembled state, is provided for securing persons using a safety harness (10) within a safety section (8), comprising a safety rope (4) and at least one first fastening device (2) for fastening or holding a first end section (6) of the safety rope (4) on a position-fixed first holding element (5), the at least one first fastening device (2) comprising - a holding bracket (12) with a first fastening tab (15) and a second fastening tab (16), wherein the at least one first fastening device (2) can be fixed to the first fastening tab (15) by means of a holding means (17) on the position-fixed first holding element (5), - a clamping device (14) for clamping the first end section (6) of the safety rope (4), and - a coupling device (13), which coupling device (13) is coupled to the holding bracket (12) and the clamping device (14) and at least to the second Fastening tab (16) is mounted, characterized in that - the clamping device (14) comprises a clamping element (19) with a first bore (20) and a second bore (21) spaced from the first bore (20), through which bores (20, 21) the safety cable (4) can be guided, - wherein the clamping element (19) has at least a first threaded bore (22) for receiving a first screw (24) and a second threaded bore (23) for receiving a second screw (25), wherein the first threaded bore (22) is designed to open into the respective bore (20, 21) transversely to a first bore longitudinal axis (26) of the first bore (20) and the second threaded bore (23) is designed to open into the respective bore (20, 21) transversely to a second bore longitudinal axis (27) of the second bore (21), and - wherein the safety cable (4) is guided through the first bore (20) and through the second bore (21) in the assembled state, wherein the Safety cable (4) is pressed in the first bore (20) by means of the first screw (24) against a first bore inner surface (28) and in the second bore (21) by means of the second screw (25) against a second bore inner surface (29). Fall protection system (1), according to Claim 1 , characterized in that the clamping element (19) is formed in one piece. Fall protection system (1) according to one of the preceding claims, characterized in that the clamping element (19) is made of an aluminum alloy and the screws of the clamping device (14) and the safety rope (4) are each made of iron alloys. Fall protection system (1) according to one of the preceding claims, characterized in that a third threaded bore (30) is formed transversely to the first longitudinal bore axis (26) and is spaced from the first threaded bore (22) in the direction of the first longitudinal bore axis (26) for receiving a third screw (31), wherein the third threaded bore (30) is formed so as to open into the first bore (20) and wherein the clamping device (14) further comprises the third screw (31) associated with the third threaded bore (30). Fall protection system (1) according to Claim 4 , characterized in that the third threaded bore (30) is axially parallel to the first threaded bore (22). Fall protection systems (1) to Claim 4 or 5 , characterized in that the first bore (20) in the assembly position of the fall protection system (1) is provided for clamping the safety section (8) of the safety rope (4) and that the second bore (21) in the assembly position of the fall protection system (1) is provided for clamping the first end section (6) of the safety rope (4). Fall protection system (1) according to one of the preceding claims, characterized in that the screws of the clamping device (14) each have a contact surface (32) at one end which is closest to the safety rope (4) in the assembly position of the fall protection system (1), wherein the contact surface (32) is flat and is aligned normal to the respective screw axis. Fall protection system (1) according to one of the preceding claims, characterized in that the second bore (21) is formed substantially axially parallel to the first bore (20), so that in the assembly position of the fall protection system (1) a loop (33) is formed by the first end section (6) of the safety rope (4). Fall protection system (1) according to one of the preceding claims, characterized in that the retaining bracket (12) is L-shaped in cross section, wherein the first fastening tab (15) and the second fastening tab (16) are aligned with each other at an angle (34) from a range of 0° to 135°, in particular at an angle (34) of 90°. Fall protection system (1) according to one of the preceding claims, characterized in that the coupling device (13) comprises a rod-shaped connecting element (35) with a tensioning element (36), wherein the clamping element (19) is coupled by means of the rod-shaped connecting element (35) and by means of the tensioning element (36) to the retaining bracket (12) on the second fastening tab (16) in such a way that the clamping device (14) can be fixed in position at least in the direction opposite to a tensioning direction (18) of the safety cable (4), so that the safety cable (4) can be tensioned by means of the tensioning element (36) in the direction of the retaining bracket (12) or the tensioning direction (18). Fall protection system (1) according to one of the Claims 1 until 10 , characterized in that the coupling device (13) comprises a damping element (37), a guide carriage (38) coupled to the holding bracket (12) and displaceable on the holding bracket (12) in the direction of and in the direction opposite to a tensioning direction (18) of the safety cable (4), and a rod-shaped connecting element (35) coupled to the guide carriage (38), wherein the rod-shaped connecting element (35) is mounted on the second fastening tab (16), is coupled to the guide carriage (38) by means of a tensioning element (36) and is coupled to the clamping element (19), so that the clamping device (14) is operatively coupled to the damping element (37) and the safety cable (4) can be tensioned by means of the tensioning element (36) in the direction of the holding bracket (12) or the tensioning direction (18). Fall protection system (1) according to Claim 10 or 11 , characterized in that the rod-shaped connecting element (35) is a screw, a threaded rod or a bolt with at least one threaded portion on one end of the bolt and that the clamping element (36) is a threaded nut which can be coupled to the rod-shaped connecting element (35). Fall protection system (1) according to one of the preceding claims, characterized in that the fall protection system (1) further comprises at least one fall indicator (39), wherein the at least one fall indicator (39) is designed as a marking element that can be fixed to the safety rope (4) and is positioned in the assembly position of the fall protection system (1) on the safety rope (4) in the safety section (8) such that the marking element touches the clamping element (19). Fall protection system (1) according to one of the preceding claims, characterized in that the fall protection system (1) comprises a second fastening device (3), which second fastening device (3) can be fixed to a position-fixed second holding element (7) spaced from the position-fixed first holding element (5), wherein the safety rope (4) can be tensioned between the holding elements (5, 7) by means of the fastening devices (2, 3), so that the safety section (8) extends between the fastening devices (2, 3). Fall protection system (1) according to Claim 14 , characterized in that the at least one first fastening device (2) comprises a coupling device (13) according to Claim 11 and that the second fastening device (3) comprises a coupling device (13) according to Claim 10 having.

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