DE29905756U1 - Holder for the guide device of a fall protection and fall protection with such a holder - Google Patents

Description

Seligenweg 10

D-95028 Hof
Federal Republic of Germany

Holder for the guide device of a fall protection device and fall protection with such a holder

Description

The invention relates to a holder for the guide device of a device for protecting people against falling (fall protection). A runner can be guided on the guide device, which acts as a movable anchor point. The holder can be attached to the surface, e.g. a brickwork, and contains means for slidably securing the guide device. The invention also relates to a fall protection device with such a holder.

Fall protection devices are required when climbing ladders on radio masts or chimneys, on crane runways, in shipping, for cleaning facades and in similar cases where there is a risk of falling.

The guide device can be a guide cable, a guide strand, a guide rail or a similar guide device used to guide a carriage or

House address / street address ·

Poschingerstrasse 6 D-81679 Munich - Bogenhausen

: : Xelefak: I '••+49-89-98 40 37*

eMail: info@abitz.de

runner of a fall protection or arrest system.

From DE-C-I 961 757 a fall protection device with a guide rail is known which has a C-profile, whereby the edges of the longitudinal opening of the C-profile act as guide flanges for a fall arrester or a runner.

DE-U-295 17 560 discloses an anchorage device for securing people against falls, in which the guide rail can run both horizontally and vertically. The guide rail for the sled or the fall arrester has a longitudinal profile web that is clamped by means of a screw to a mounting bracket that is attached, for example, to a crane runway or a roof edge.

From DE-U-297 19 485 it is known to fix the guide rail to holders so that it can move. The forces that act in the longitudinal direction of the guide rail in the event of a fall are reduced in end holders that are provided at one or both ends of the guide rail and that act as force-displacement limiters. In intermediate holders that are arranged at intervals in between, the guide rail is fixed so that it can move freely in the longitudinal direction, so that the guide rail cannot transfer large forces to the holders in the longitudinal direction.

In DE-U-299 02 810 it is proposed to pre-stress the guide rail with up to 50% of the breaking load. This pre-stress is applied by end brackets at the end of the rail, which also act as force-displacement limiters. Even with a guide rail cross-section of, for example, only 25 x 1 mm, additional intermediate brackets at intervals of 20 m are sufficient, in which the guide rail is fixed so that it can move freely. The guide rail is fixed in the intermediate and end brackets in a bracket head that completely supports the guide rail.

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The slider must have a sufficiently large internal cross-section so that it can travel over the holder heads. At the other points on the guide rail, the slider then has a lot of play, wobbles on the guide rail and jerks when it travels over the holder. Another problem is the rattling noises that can arise from the play of the guide rail in the holders. Temperature-related changes in the length of the guide rail also cause constant movement of the guide rail in the holders, which can lead to wear on the guide rail and the holders.

The object of the invention is a holder which, despite its lightweight construction, allows such movements of the rail without significant wear.

According to the invention, this object is achieved in that the holder has a displaceably guided receiving device to which the guide device can be fastened.

The receiving device can be guided in a bearing or block that can be fixed on the ground.

Because the guide device is firmly connected to the receiving device, no wear can occur on the guide device itself. Only the receiving device moves within the bearing. The receiving device and bearing can both be dimensioned in such a way that the wear is distributed over a larger area, even in the case of a delicate guide device.

The receiving device can be a receiving head with a cylindrical sliding body and a fastening web that protrudes radially from the outside and extends in the longitudinal direction. The bearing can be designed as a block with a guide channel that has a lateral opening that extends over the length of the guide channel. The sliding body is guided in the guide channel so that it can move.

wherein the fastening web projects radially through the opening. The guide device can be attached to the fastening web.

The receiving device can also be designed as a bracket. The bracket is C-shaped or Ω-shaped, with the guide device being attached to both ends of the bracket and the bent or offset middle section being attached to the base. The arrangement can also be reversed, i.e. the guide device is attached to the middle section and the two ends are attached to the base. The bracket can also have the shape of a closed rectangle, with the guide device attached to one side and the opposite side attached to the base. Finally, the bracket can also have a Z-shape or another shape that allows the guide device to be attached at a distance from the base. The only important thing is that the guide device is attached to the bracket in an immovable or non-displaceable manner, while the bracket itself is held or guided in a bearing so that it can move.

The bracket can be attached in a movable manner using a screw or a threaded bolt that extends through a slot in the bracket. The screw or threaded bolt is tightened with only a small amount of force, so that the bracket does not offer much resistance to any possible displacement, such as that caused by temperature changes.

The guide device is preferably a guide rail and this can have recesses or holes for a firm connection to the receiving device through which it can be screwed or riveted to the receiving device. The fastening can also be carried out by means of grooved nails, glued-in pins or in another suitable manner.

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Preferably, the recesses or holes are provided with a specific spacing grid. If the guide rail is constructed in layers from several layers of a stainless steel flat strip, the individual layers can then be riveted together at the holes or screwed together at the holders.

Through holes with a certain spacing grid, rail sections can also be easily joined together by the joint

The individual layers are offset from one another and the layers are riveted together at the holes. The runner, which acts as an attachment point, grips the guide rail. It slides easily over such a connection point. Another way of connecting individual rail sections is to let the rail sections butt together at the receiving head. The receiving head can be made a little longer for this purpose so that sufficient lengths of rail sections can be attached to the receiving head for the force transmission. This option can also be used for guide rails that only consist of a single layer of the flat strip.

Such a joint transfers the full tensile force and the holder can be easily assembled with the flat strip and can be run over by a runner whose inner profile corresponds to the cross-sectional profile of the guide rail. At most, a recess in the inner profile may be necessary for the heads of the screws. The smooth running of the runner on the guide rail is not affected by this.

The runner can be fixed to the belt in a form-fitting manner via the holes or recesses in the guide rail, meaning that the fall protection can also be used as a climbing protection device.

The impact force propagates over the entire length of the guide rail or other guide device and is finally preferably transferred to a force-displacement limiter.

The force is introduced by an end stop that is provided at one or both ends of the guide device. The design and construction of such an end stop allows the forces that occur during a fall and the fall path to be controlled.

The guide device can be supported in intermediate holders between the end holders. Intermediate holders for absorbing high transverse forces can be made of stainless steel or aluminum. Such a holder can be designed to apply a transverse force of 6 kN. As mentioned, the guide device is only guided in them, but not fixed.

The intermediate holder(s) can also be made of injected or extruded plastic and serve as clip or adhesive holders. Such a holder serves to guide and dampen vibrations of the guide device and thus prevent rattling noises. It is designed to absorb, for example, only around 1 kN of transverse force. In the event of an overload, the holder will detach from the surface or be destroyed.

The support device can be designed in such a way that it offers no or only minimal resistance to displacements over a certain distance, such as those caused by temperature-related changes in the length of the guide device, but that it offers as much resistance as possible to displacements over longer distances, such as those that occur when a person falls into the fall protection, up to the maximum permissible value. At least part of the fall energy can thus be dissipated in the intermediate holders, so that the dissipation of the fall energy is distributed over several holders and not all of the fall energy has to be dissipated in the end holder. There is also the advantage that less length of the guide device is required between the point of fall and the point where the fall energy or part of the fall energy is dissipated.

and the guide rail can therefore only stretch to a correspondingly less extent.

In a receiving device with a receiving head guided in a block, the receiving head is slightly longer than the guide channel in the block, namely by the amount necessary to compensate for temperature-related changes in the length of the guide rail. Dampers are attached to the ends of the receiving head, which have a slightly larger diameter than the guide channel and can therefore only be pulled or pushed into the guide channel with considerable force.

With a holding device in the form of a bracket that is slidably mounted on a slot, this graduated resistance to displacement can be achieved by making the slot's width in the middle section slightly larger than the diameter of the screw shaft. The length of the middle section corresponds to the maximum expected temperature-related change in length. This middle section is followed on both sides by narrower end sections that can only be pulled or pushed onto the screw shaft with considerable force.

Particularly when using a guide rail, the support device is preferably designed in such a way that when subjected to a heavy load it pivots or tilts to the side around its longitudinal axis in the direction of the load or deforms accordingly. Without this tilting or pivoting there would be a risk that the guide rail would be torn off the support device. The guide rail is generally mounted upright so that in the event of a fall the first rivet or screw used to attach the guide rail to the support device is subjected to the greatest stress and has to bear almost the entire load. It therefore tears off easily, whereupon the next screw is loaded and tears off, and so on.

When using a bracket as a support device, this can be achieved by appropriate dimensioning of the bracket, since a bracket formed from flat material has a defined rigidity in the transverse direction.
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If the guide device is attached to the free ends of the bracket and the sliding support of the bracket takes place in the middle area, the ends of the brackets between which a person is caught tilt to the side under the effect of the vertical component of the tensile stress in the guide device and also bend slightly downwards due to this vertical component. The ends of the bracket are bent to the side on which the guide device is attached, i.e. the guide device lies on the inside of the curve. The stress generated by the fall is therefore not concentrated on the first rivet or screw, but is distributed over several of them.

In order to distribute the load across several rivets or screws, the fastening web is preferably extended lengthwise at both ends by adding slim extensions in the embodiment with the receiving head. The extensions continue the fastening web beyond the sliding body, with the radial thickness decreasing towards the end. The ends therefore bend particularly easily under load, which means that the load is distributed over a larger area of the connection between the guide device or rail and the fastening web.

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An advantage of the holder according to the invention is that it can also be subsequently attached to the guide device.

The fixed connection of the guide device with the receiving device can be designed in such a way that the profile of the

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Guide device is not thickened in the area of the holders. The runner therefore has the same relatively small amount of play at the other points of the guide device as at the holders. The holders can be driven over without jolting and the runner does not wobble on the guide device. The runner can also be very simple and can be made from slippery plastic, for example. It can be made of two half-shells, each of which encloses one edge of the guide rail. The two half-shells are connected by a block that has a hole in which the snap hook of the safety harness is hooked.

The device according to the invention can be used to protect people from falling on both vertical climbing routes and horizontal routes. On vertical climbing routes, the runner is designed in such a way that it blocks downward movement in the event of a fall.

Embodiments of the invention are explained below with reference to the drawing.

Fig. 1 a horizontal guide rail which is attached to an intermediate holder and an end holder and on which a runner is guided;

Fig. 2 shows an intermediate holder with receiving head in elevation; Fig. 3 shows the intermediate holder of Fig. 2 from the side;

Fig. 4 shows an embodiment of an intermediate bracket intended for attachment to supports projecting from a facade;

Fig. 5 shows another embodiment of an intermediate bracket intended for attachment to beams projecting from a facade;

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Fig. 6 an intermediate holder with a mounting bracket,

Fig. 7 shows the fastening section of the intermediate holder of Fig. 6;

Fig. 8 an intermediate holder similar to that of Fig. 6 with eccentric fastening;

Fig. 9 shows the intermediate holder of Fig. 8 in a spatial representation;

Fig. 10 the intermediate holder of Fig. 9 in connection with a so-called sword;

Fig. 11 an intermediate holder, showing the deformation occurring under load;

Fig. 12 a particularly simple embodiment of the intermediate holder;

Fig. 13 and 14 show in section and in plan view an embodiment with eccentric fastening;

Fig. 15 to 17 an embodiment of the intermediate holder, which also enables guidance of the guide rail on a curved path while maintaining the preload;

Fig. 18 an end holder with connected curve piece; 30

Fig. 19 an end holder with exit lock; Fig. 20 an end holder in longitudinal section; Fig. 21 the end holder of Fig. 20 in a front view and

Fig. 22 to 27 different fastening options for a guide rope on the receiving device.

As shown in Fig. 1, a guide rail 10 is fastened to a base by means of an intermediate holder 12. A runner 14 with an eyelet 16 is guided on the guide rail 10, to which a person can be secured by means of a snap hook. The end of the guide rail 10 is held in an end holder 18, which pre-tensions the guide rail 10 and acts as a force-displacement limiter.

The guide rail 10 has holes 20 along its center line over the entire length at a distance of e.g. 1.5 cm. The guide rail 10 consists of one to three layers 22 of a flat strip which are riveted together. For example, a rivet 24 can be provided at every fifth or tenth hole 20. The flat strips 22 can also be glued together.

According to Figures 2 and 3, the intermediate holder 12 has a delta-shaped block 32 as a bearing and an elongated receiving head 34 sliding therein. The block 32 is anchored to the masonry or other substrate by means of a screw. The block 32 has a longitudinally extending guide channel 36 which has an inner, cylindrical section in the profile

3 8 and a narrower, outward-opening neck section

4 0 which, in the sectional view of Fig. 2, opens towards the tip of the delta-shaped block 32 and thus towards the guide rail 10. The receiving head 34 has a correspondingly profiled sliding body 42 which slides in the longitudinal direction in the guide channel 36. The receiving head 34 has a fastening web 44 which projects radially from the sliding body 42 and protrudes from the guide channel 3 6 and has an outwardly directed fastening surface to which the guide rail 10 is fastened by screws 46.

As shown in Fig. 3, the receiving head 34 is longer in the axial direction than the block 32. The difference in length is dimensioned such that it is sufficient to absorb the temperature-related changes in length of the guide rail 10 without one end of the receiving head 34 entering the guide channel 36 or even the receiving head 34 falling completely out of the guide channel 36.

As can be seen in Fig. 3, dampers 48 are attached to both ends of the receiving head 34, which, when they enter the guide channel 36, offer high resistance to further displacement of the receiving head 34. The dampers 48 have a slightly larger diameter than the sliding body and have an excess of, for example, 2/10 mm compared to the circular section 38 of the guide channel 36. The diameter of the dampers 48 is expediently dimensioned such that a constant displacement force is required. The fastening web 44 has slim run-outs 49 at both ends. The run-outs 49 extend the fastening web 44 beyond the sliding body 42, with their thickness continuously decreasing with the distance from the sliding body 42. In the event of a fall, the run-out 49 on the side of the fall deforms, whereby the load is distributed over several fastening screws 46.

On facades, so-called swords are often left to protrude horizontally as supports for walkways, onto which fall protection devices with a guide rope can be attached. The swords have a slotted hole at the free end through which a fastening device for the guide rope can be threaded.

Fig. 4 shows the use of such a sword 50 as a bearing instead of the block 32 of Fig. 2 and 3. The receiving device consists of a fastening element 56, which is similar to the receiving head 46 of the embodiment of Fig. 2 and 3, and a U-bracket 54, between the free ends of which the fastening element 56 is clamped. The U-bracket 54 is guided through the slot 52. The guide rail 10 is screwed onto the fastening element. The U-bracket 54

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can move in the elongated hole 52 in the direction of the guide rail 10, so that temperature-related changes in the length of the guide rail 10 are permitted.

In the embodiment of an intermediate holder 12 according to Fig. , the two ends 60 of a U-bracket are angled away from each other, so that a Ω-shaped bracket 62 is formed. The guide rail 10 is screwed directly onto the angled ends of the bracket 62. The cranked middle section 64 is guided in the elongated hole 52 by means of a sliding piece 66. The middle section 64 has a central longitudinal gap and the sliding piece 66 has a guide rib 70 that extends upwards into the longitudinal gap (see also Fig. 10). The length of the middle section 64 is sufficient to allow temperature-related changes in the length of the guide rail 10.

In the embodiment of Fig. 6 and 7, the bracket 62 is anchored to the substrate by means of an eccentric 72. The eccentric 72 has an anchoring shaft 74 and a clamping shaft 76 offset relative thereto, which are arranged on the opposite sides of an eccentric disk 78. The bracket 62 is placed with the longitudinal gap 68 on the clamping shaft 76, with a two-part sliding bush 80 also being inserted. The bracket 62 is secured to the eccentric 72 by means of a nut.

By screwing the anchoring shaft 74 into the ground to different depths, the bracket 62 can be adjusted in height. By turning the eccentric 72, an adjustment transverse to the guide rail 10 is possible. The bracket 62 can move longitudinally in the sliding bush 80. As can be seen in Fig. 7, the longitudinal gap 68 is somewhat wider in the middle, so that the bracket 62 can move relatively without resistance to compensate for temperature-related changes in the length of the guide rail 10. In the two end areas 82, however, the longitudinal gap 68 is narrower, so that a considerable force is required to pull or push the bracket 62 with one of these end areas 82 onto the sliding bush 80. In the event of a fall, the intermediate holder 12 can be pushed off by

Fig. 6 and 7 therefore absorb at least part of the falling energy.

In the embodiment of Fig. 8 and 9, the longitudinal gap 68 of the bracket 62 is continued into the supports 84 projecting at right angles from the central section 64 and the supports 84 are spread out somewhat so that the width of the longitudinal gap 68 is increased and a stronger clamping shaft 76 can be used. The intermediate holder 12 also has greater transverse rigidity as a result. As Fig. 10 shows, an intermediate holder 12 can also be formed by arranging such a bracket 62 in the elongated hole 52 of the sword 50 with an appropriately shaped sliding piece 66 in between.

Fig. 11 shows an intermediate holder 12 with a receiving device in the form of a rectangular ring 86, to one long side of which the guide rail 10 is attached, this long side being extended in both directions by slim run-outs 4 9. The opposite long side is held displaceably in a block 88. The run-out 49 on the left in Fig. 11 is shown with the bend that results in a fall. The end of the run-out 4 9 then points approximately in the direction of the deflection of the guide rail 10 due to the fall, so that in the case of the first screw 46 on this run-out 49 there is only a very small force component perpendicular to the guide rail 10. This vertical force component is therefore absorbed almost evenly by the screws 46 present within the bend. Without the run-out 49 leaning in the direction of pull, there would be a risk that one screw 46 after the other would be torn off the ring 86 from the edge. In addition, the entire intermediate holder 12 tilts or bends downwards. This bending is not shown in Fig. 11.

Fig. 12 shows an embodiment of an intermediate holder 12 in which the two ends of a U-bracket are angled towards each other so that a C-shaped bracket 90 is present. The

Bracket 90 is held in the clamp 88 so that it can move. In this simple form, the intermediate holder 12 is primarily suitable for preventing vibrations of the guide rail 10 or rattling noises. Due to the lack of outlets, this intermediate holder 12 is not suitable for absorbing large catching forces.

Fig. 13 and 14 show an embodiment in which the sliding guide of the receiving device is particularly simple. As in Fig. 6 and 12, the receiving device is an Ω or C-bracket 62, 90 made from a square bar, which is guided in a bearing. The receiving device can of course also be the rectangular ring 86 from Fig. 11. The bearing consists of a U-shaped bearing bracket 92, which encloses the section 64 of the bracket 62, 90 offset from the guide rail 10 on three sides, with a sliding insert 93 inserted between them. On the fourth side, an adjusting eccentric 94 is provided, which can rotate about an anchoring bolt 95. The anchoring bolt 95 extends through elongated holes 96 in the two legs of the bearing bracket 92. The sliding insert 93 is continued along the two flat surfaces of the adjusting eccentric 94. By turning the adjusting eccentric 94, the bracket 62/90 can be adjusted without play in the bearing bracket 92. The adjustment is then fixed by tightening the anchoring bolt 95. The bracket 62/90 is offset to the side so that the screws 46 for fastening the guide rail 10 are approximately aligned with the anchoring bolt 95, which anchors the bearing bracket 92 to the surface.

Fig. 15 to 17 show an intermediate holder 12 with which the guide rail 10 can be guided on a curved path. The receiving device is a plurality of small pins 100. In a larger area of the guide rail 10, a pin 100 is screwed to each hole 20 or at certain intervals. Each pin 100 has a slim shaft 102 and a widened foot 104. The pins 100 are guided in an undercut groove 106 of a sliding saddle 108, which functions here as a bearing. The sliding saddle 108 or at least

the area in which the groove 106 is located and the pins 100 are made of a sliding material. This intermediate holder 12 allows the guide rail 10 to be guided around an outside corner of a building, for example, whereby the guide rail 10 can also be moved around the outside corner to compensate for temperature-related changes in length. The radius of curvature is only limited by the flexibility of the guide rail 10. If the pins 100 and the sliding saddle 106 are designed to be sufficiently solid, the guide rail 10 can also be guided on an inside curve.

Fig. 18 shows an end holder 18 which functions as a force-displacement limiter. The receiving head 34 can also be moved relative to the block 32. However, the receiving head 34 is clamped against the block 32 by means of an adjusting spindle 107 and a clamping nut 108, so that a very high tension is exerted on the guide rail 10. To compensate for temperature-related changes in length, a very long helical compression spring 109 is inserted on the adjusting spindle 107 between the clamping nut 108 and the receiving head 34. For the construction and operation of this end holder 18, reference is made to the German utility model application DE-U-299 02 810 cited above and the description of the terminal therein (Fig. 12 to 15). As with the intermediate holders in Fig. 2 to 4, the guide rail 10 is screwed to the receiving head 34.

In the embodiment of Fig. 18, the guide rail 10 is continued by a curved piece 26, whereby there is no pre-tension in the curved piece 26. If, however, the guide rail 10 ends at the end holder 18, then, as shown in Fig. 19, a spring element 28 can be screwed to the end of the receiving head 34 as an exit stop, the free end of which protrudes slightly from the receiving head 34 so that it stops the runner 14. To travel over the exit stop, the spring element 28 must first be pressed against the receiving head 34.

Fig. 20 and 21 show an embodiment of the end holder 18, in which the receiving device is an inner tube element 110 with a radially projecting fastening web 112. The inner tube element 110 is guided in a slotted outer tube element 116 by means of sliding rings 114. The fastening web 112 protrudes through the slot 118 and the guide rail 10 is screwed to it. The fastening web 112 has a slim outlet 49 to reduce transverse forces, as in Fig. 3.

The outer tubular element 116 is rotatably held at both ends in a first and a second bearing cap 120, 122. The bearing caps 120, 122 are fastened to the substrate by anchoring bolts 95 in elongated holes. A transverse wall 124 is welded into the outer tubular element 116 in front of the first bearing cap 120, and the outer tubular element 116 is clamped against the first bearing cap 120 in a rotationally fixed manner up to a high torque by an axial brake screw 126 penetrating the transverse wall 124 and a brake disk 128 sitting on it. Only at high arresting forces of, for example, more than 1 kN with correspondingly high transverse forces does the outer tube element 116 and with it the entire receiving device rotate, as shown in Fig. 21, so that the transverse force acts as radially as possible on the two tube elements 120, 122 and the outlet can bend in the direction of the force.

A tensioning spindle 130 is screwed axially into the second bearing cap 122, on the end of which is located in the inner tube element 120 a tensioning disk 132 is seated. A helical compression spring 136 is clamped between the tensioning disk 132 and a tube plug 134 at the end of the inner tube element 120, which applies the force required to pre-tension the guide rail 10 to the inner tube element 120. The helical compression spring 136 is very long in order to make the pre-tension as independent of temperature as possible. The tension of the helical compression spring 136 and thus the pre-tension of the guide rail 10 can be adjusted using the tensioning spindle 130.

The guide rail 10 to be preloaded extends from the end of the end holder 18, where the second bearing cap and the clamping spindle 130 are located.

A clamping disk 140 is located in an annular groove 13 8 on the circumference of the clamping disk 132, which expands against the inner tubular element 120 and clamps it in the event of high displacement forces, such as those that occur during a fall, and the associated high displacement speeds, so that the full arresting force immediately acts directly from the inner tubular element 12 0 onto the clamping disk 132. On the side opposite the helical compression spring 136, the clamping disk 132 is provided with a shearing cone 142 with a shearing angle of approximately 15° relative to the thread of the clamping spindle 13 0. In the event of very high arresting forces, the shearing cone 142 shears off the threads of the clamping spindle 130, thereby absorbing falling energy and braking the fall with a constant force that is limited by the shearing process.

In the event of a fall, the falling energy is dissipated in the end brackets 18. The transverse component of the impact force is absorbed by the intermediate brackets 12, unless the fall occurs directly next to an end bracket 18. The intermediate brackets and of course also the end brackets 18 are therefore designed for a transverse load of 6 kN. In the exemplary embodiments in Fig. 2, 3; 6, 7 and 13, 14, at least part of the longitudinal component of the impact force is also dissipated in the intermediate brackets 12. Depending on the prestress and the cross-section of the guide rail 10, the intermediate brackets 12 are attached at intervals of approximately 6 to 20 m. At smaller intervals, similar intermediate brackets 12 can simply be glued to the masonry or the facade. These brackets 12 can only bear a load of approximately 1 kN and are only intended to absorb the basic load that occurs during work. In the event of a fall, the holders 12, which are only glued in place, may become detached from the masonry or break.

Fig. 22 and 27 show how different types of guide ropes and strands 150 can be used as a guide device.

In Fig. 22 and 23, a sewn flat rope is used as a guide rope 150, e.g. DIN 21 256, and is screwed by means of a counter plate 152 to an intermediate holder 12 according to one of the embodiments of Fig. 2 to 14. The guide rope 150 is fixed between the fastening web 44 and the counter plate 152 by means of the Ø screws 46.

The guide rope 150 can also be a flat strand or, as in Fig. 24, a sewn flat rope or a webbing with a plastic (PA or PE) sheath 154.

Fig. 25 shows the fastening of a round guide cable 150 to an intermediate holder 12. The guide cable 150 is held in a pressed-on clamp 156 which slides on a guide tube 158. The clamp 156 can also be part of the receiving head 34, a U- or Ω-bracket 54, 62 or a ring 86 or can be fastened thereto.

In the embodiment of Fig. 26 and 27, a hollow braided guide cable 150, which can be a synthetic or steel cable, is used. In the guide cable 150 there is an elongated receiving core 160 which slides over a connecting web which extends radially through the braiding of the guide cable 150 and a guide sleeve on a guide tube. The receiving core 160 is arranged inside the braided guide cable 150 by compressing or compressing the guide cable 150 in the longitudinal direction. The braided structure opens as a result and the receiving core 160 with the connecting web protruding from it in a T-shape and the guide sleeve can be pushed into the middle of the guide cable 150. When a tensile force is applied to the guide cable 150, the braided structure closes again.

The receiving core 160 is thereby held firmly in the guide cable 150.

List of reference symbols

10 Guide rail 86 ring 12 Intermediate holder 88 Clamp 14 runner 90 C-bracket 16 eyelet 92 Bearing bracket 18 End holder 93 Sliding insert 20 Holes 94 Adjusting eccentric 22 Flatband 95 Anchor bolts 24 Riveting 96 Long hole 26 Curve section 100 cone 28 Spring element 102 shaft 32 block 104 Foot 34 Recording head 106 Sliding saddle 36 Guide channel 107 Adjusting spindle 38 cylindrical section 108 Clamping nut 40 Neck section 109 Helical compression spring 42 Sliding body 110 inner tube element 44 Mounting bar 112 Mounting bar 46 screw 114 Sliding ring 48 mute 116 outer tube element 49 Outlet 118 slot 50 sword 120 first bearing cap 52 Long hole 122 second bearing cap 54 U-bracket 124 Cross wall 56 Fastener 126 Brake screw 58 Adjusting spindle 128 Brake disc 60 end up 130 Clamping spindle 62 &OHgr;-bracket 132 Clamping disc 64 Middle section 134 Pipe plug 66 Sliding piece 136 Helical compression spring 68 Longitudinal gap 138 Ring groove 70 Guide rib 140 Clamping disc 72 eccentric 142 Shear cone 74 Anchoring shaft 150 Guide rope 76 Clamping shaft 152 Counter plate 78 Eccentric disc 154 Wrapping 80 Sliding bush 156 clamp 82 End areas 158 Guide tube 84 support 160 Recording core · · · ·

Claims (10)

1. Holder ( 12 , 18 ) for the guide device ( 10 ) of the runner ( 14 ) of a fall protection device, with means for slidably securing the guide device ( 10 ), characterized by a slidably guided receiving device ( 34 ; 54 , 56 ; 62 ; 86 ; 110 , 112 ) to which the guide device ( 10 ) can be fastened. 2. Holder according to claim 1, characterized in that the receiving device is designed as a receiving head ( 34 ), has a sliding body ( 42 ) and a fastening web ( 44 ) for fastening the guide device ( 10 ) and is guided in a guide channel ( 36 ) of a bearing ( 32 ) which has a section ( 38 ) profiled corresponding to the sliding body ( 42 ) and a narrower neck section ( 40 ) through which the fastening web ( 44 ) projects laterally out of the guide channel ( 36 ). 3. Holder according to claim 2, characterized in that the receiving device is a bracket ( 54 ; 62 ) which is displaceably guided in a bearing ( 50 , 52 ; 72 ; 88 ). 4. Holder according to claim 3, characterized in that the bearing has an eccentric ( 72 ) for adjusting the holder ( 12 ) transversely to the guide rail ( 10 ). 5. Holder according to one of claims 1 to 4, characterized in that the receiving device ( 34 ; 62 ; 64 ) offers only a slight resistance to a displacement by a distance which corresponds approximately to the temperature-related change in length of the guide device ( 10 ), but offers a significantly greater resistance to a larger displacement. 6. Holder according to claim 5, characterized in that the receiving device ( 34 ; 62 ; 64 ) is profiled in such a way that the displacement of the receiving device is opposed by a small or significantly greater resistance. 7. Holder according to one of claims 1 to 6, characterized in that the receiving device ( 34 ; 54 , 56 ; 62 ; 86 ; 110 , 112 ) has a slim outlet ( 49 ) which is dimensioned such that it bends under high transverse forces. 8. Device for securing persons against falling, with a guide device ( 10 ) which is held by holders ( 12 , 18 ), wherein a runner ( 14 ) can be guided on the guide rail ( 10 ) and the person to be secured can attach himself to it, characterized in that the holders ( 12 , 18 ) are designed according to one of claims 1 to 7. 9. Device according to claim 8, characterized in that the guide device is a guide rail ( 10 ) which is perforated with a certain spacing grid. 10. Device according to claim 9, characterized in that the guide rail ( 10 ) is screwed to the receiving head ( 34 ).