DE202013011355U1 - clamping device - Google Patents

Abstract

Clamping device (10), comprising: a guide track (12) running along a guide direction (F) for guiding a cable element (100) through the clamping device, at least one clamping body (14, 16) movably mounted in the guide track (12) for clamping the Rope element (100) in the guideway, if it is pulled through the guideway (12) against the guiding direction (F), at least one pretensioning element (18), by means of the pretensioning force of which the clamping body (14, 16) is forced from a release position into a clamping position , in which it narrows the guideway (12) more than in the release position, characterized by an actuation mechanism (30) for adjusting the clamping body (14, 16) from the clamp position to the release position with two actuation sections (32, 34) which are for actuation of the actuating mechanism can be moved towards one another by pressure force (X).

Description

The invention relates to a clamping device with a guideway extending along a guide direction for guiding a cable element through the clamping device, at least one clamping body movably mounted in the guideway for clamping the rope element in the guideway, if this is pulled against the guide direction by the guideway, and at least one Biasing element, through the biasing force of the clamping body is urged from a release position into a clamping position in which it narrows the guideway more than in the release position.

Both in climbing sport as well as for industrial applications, the climber can secure a rope, which runs between him and a second security person or a fixed point, or he can hook for example by means of a carabiner to a permanently installed rope element. The fixed cable element can be laid along a rock wall, a building, on a mast or the like. The latter method of securing is generally used in fixed rope climbing in mountain sports, which have permanently laid wire ropes on which the climber can hook by means of a carabiner. In the context of the present invention, rope element is generally understood to mean a rope-shaped element such as a natural fiber or synthetic fiber rope, a wire rope, a chain, a cable, a rope, a cord or the like which is suitable for guiding through a carabiner opening.

To secure the climber on a via ferrata you need a via ferrata set, which regularly has two carabiners, a shock absorber and a binding device. Both carabiners of the set are always hooked into the rope element. At each anchoring of the rope element then first one, then the other carabiner of the set must be umgehängt so that the climber is secured at any time on at least one carabiner. Nevertheless, in case of a fall, the climber usually falls over several meters unobstructed down despite securing, because the anchorages are several meters apart. Therefore, falls on via ferrata should be avoided at all costs.

On roofs, masts u. Like. By means of a rope securing system, which is firmly connected to the building or the structure. Sliding systems for horizontal or slightly inclined surfaces as well as fixed rope clamps for vertical or steep structures are used here.

To safely climb a mountain wall or building wall, it is essential to reattach the carabiners behind each anchorage to reduce the fall path in the event of a fall. The fall paths can nevertheless be considerable. Rebuilding the karabiner behind each anchorage takes time, so a climber who uses a conventional via ferrata set-up properly slows down considerably faster than a climber who does not hitch up behind any anchorage.

In order to provide a climbing protection device which allows a safer climbing, therefore, a clamping device was provided as in the document WO 2010/142690 is described. This clamp replaces one of the carbines of the traditional via ferrata set.

In this clamping device, two clamping bodies protrude laterally into a guide track in which the cable element is guided. The guideway has a wedge-shaped inner profile, which tapers along a central axis of the cable element, wherein the clamping body are mounted so movable in the guideway that they can assume a clamping position in which the clamping body between an inner wall of the guideway and the cable element are clamped. Thus, a relative movement between the cable element and the guideway is prevented due to the jammed clamping body in one direction, while it is released in the other direction.

The direction in which a rope element can be pulled through the guideway, without any jamming of the rope element, is hereinafter referred to as the guiding direction. The clamping device can be pulled when climbing in a climbing direction along the cable element, wherein the climbing direction of the guide direction is opposite (here is not drawn on the cable element, but on the clamping device held thereon). When the cable element is pulled against the guide direction by the clamping device, the clamping body are guided by the wedge-shaped region of the guide track in the radial direction to the middle of the rope, that the guide track is narrowed, so that the clamping body are pressed against the cable element. Further pulling of the cable by the clamping device against the guide direction is thus prevented.

By the action of a biasing element, the clamping bodies are urged in the direction of the center of the cable element, so that the clamping body at all times abut the outside of the cable element. This has the consequence that the clamping effect in the event of a crash engages directly. However, when the clamp when climbing in front of a Anchoring be taken from the rope element and to be put back on the rope element after anchoring, it is necessary to move the clamping body against the action of this biasing member radially outward, so that the caused by the clamp body narrowing of the guideway is repealed. Only then is it possible to remove the clamping device from the rope and put it on another area of the rope. A position in which the clamping bodies are so far away from a center of the guideway that the cable element can be easily inserted into the guideway is referred to below as the release position. The adjustment of the clamping position in the release position is in the publication WO 2010/142690 A1 described clamping device laboriously, since this requires a complex mechanism must be operated. Possibly. the climber shy away from the effort associated with moving the clamping device at seemingly simple climbing sites, which can lead to dangerous situations and climbing accidents.

In view of the described problems, it is the object of the present invention to provide a climbing device for use in climbing, which offers a high fall protection with a good ease of use and ease of use.

This object is achieved by a development of the clamping device described above, which is characterized essentially by an actuating mechanism for adjusting the clamping body from the clamping position to the release position with two operating portions which are movable towards each other for actuating the actuating mechanism by pressing force.

In other words, the clamping body can be adjusted from a clamping position narrowing the guideway into a release position which releases the guideway for insertion of the rope element, in that two actuating sections of an actuating mechanism are moved toward one another. Preferably, the one operating section is moved towards the guide track starting from one side of the guide track and the second actuating section moves toward the guide track starting from the opposite side of the guide track.

The invention is based on the knowledge that in the document WO 2010/142690 A1 described rotary-push mechanism for adjusting in the release position is not optimally adapted to the anatomy of a human hand. The simplest and most comfortable hand movement, which can apply a considerable amount of force quickly and easily, is a pressure movement between the thumb and the residual fingers of one hand. The thumb can actuate the first actuating element in the clamping device according to the invention, while the residual finger or the index finger can actuate the second actuating element, wherein the actuating portions are moved towards each other by the opposing pressure forces acting thereby, whereby the actuating portion is actuated.

In other words, the two actuating portions are coupled by means of the actuating mechanism to the at least one clamping body such that a movement of the actuating portions toward one another displaces the clamping body from the clamping position into the release position, in which it narrows the guideway less strongly. For this purpose, the actuating mechanism may comprise various types of force deflection mechanisms, of which a force deflection mechanism will be described below by way of example.

With regard to a good backup when climbing, it has proven to be advantageous that when releasing the previously actuated operating sections in the release position of the clamping body is pushed back by the action of the biasing member back into the clamping position in which he narrows the guideway back more. Conversely, when adjusting the clamping body in the release position by the action of the compressive force on the actuating portions, the biasing member is biased reinforced, so that when releasing the operating portions can be made an automatic return to the clamping position by the action of the biasing member.

With regard to a particularly comfortable operation of the actuating portions, it has proven to be expedient that the actuating portions are each parts of a lever, wherein the two levers are preferably pivotable about transversely, in particular approximately perpendicular to the guide direction axes of rotation. The levers may extend in the unactuated state substantially parallel to the guide direction laterally next to the guideway, wherein they are arranged on opposite sides of the guideway. The pivoting of the lever can take place in such a way that a rear end of the lever which has the actuating portion is pivoted onto the guide track. In the release position, the levers then run at an angle to the guideway.

In this case, the two levers can be arranged substantially symmetrically about the guide track and each have at a front end the axis of rotation and at a rear end of the actuating portion. The actuating portion may be an outer surface facing away from the guideway be the lever, the outer surfaces are particularly well grasped by the fingers of a hand and can be moved towards each other. Parts of the inner surfaces of the lever can strike each in the release position on an outer wall of the guideway. The user is directly displayed in this way that the release position is reached and the cable element can now be placed in the released guideway. The front ends of the levers can each be attached to a base part of the clamping device via a pivot pin or the like, so that a pivoting of the levers relative to the guide track is possible.

A better clamping effect can be achieved by two movable in the guideway clamp body, between which the cable element can be clamped in the clamping position, and which are each arranged closer in the clamping position in the middle of the guideway than in the release position. The middle of the guideway corresponds essentially to the center of the guided in the guideway rope element. Upon actuation of the actuating sections, the two clamping bodies can be moved in such a way that they move away from the center of the guide track and thereby increase the clear width of the guide track.

The clamping action can be further improved in that the clamping body in the clamping position abut against opposite side walls of the guide track, wherein the side walls gradually diverge in the guide direction. In other words, the side walls of the guideway can form a wedge-like or gradually widening profile. In the clamping position, when the cable element is pulled against the guide direction by the guide track, this leads to the clamping of the clamping body between each of the cable element and the associated side wall, whereby the clamping action is made possible.

The movement guidance of the clamping body can be effected in that each of the clamping body is guided in a guide groove extending along the guide direction, wherein the guide grooves extending from a clamping portion in which the clamping body are guided in the clamping position to a release portion in which the clamping body in the release position are guided, wherein the two release portions are spaced from each other further than the two clamping portions. When the two actuating sections are actuated, the two clamping bodies can be guided along the guide grooves, in each case, from the clamping sections into the release sections which are further apart, so that a narrowing of the guide track is released. The guide grooves may be arranged in a plate-like bottom surface of the guideway substantially symmetrical to the center of the guideway, wherein the two clamping body can protrude starting from the respective guide groove in the interior of the guideway. The closest mutual distance of the two clamping sections perpendicular to the guide direction can be less than 1 cm, preferably less than 0.6 cm, while the widest mutual distance of the two release sections can be more than 2 cm, preferably more than 3 cm.

With regard to a good clamping action between the clamping bodies, which at the same time enables a quick adjustment into the release position, it has proved expedient that an angle between the clamping sections of the guide grooves and the guide direction is in each case smaller than 30 °, preferably smaller than 15 °, but preferably greater than 5 °, while an angle between the release portions of the guide and the guide direction is greater than 30 °, preferably greater than 60 °. In the area of the clamping sections, the guide grooves in the guide direction can be removed at an acute angle of less than 30 ° from the center of the guide track. This small angle leads in the unactuated state at any time to a close concern of the clamping body on the cable element guided therebetween, even if act through the cable element transversely directed forces on the clamping body. An angle greater than 5 ° is useful so that the clamping body approach the cable element in its movement against the guide direction. In the area of the release sections, the angle between guide groove and guide direction can gradually increase up to more than 30 °, preferably more than 60 °. As a result, when the operating sections are actuated, the clamping bodies last quickly move away from one another in the radial direction, so that the cable element can be easily inserted therebetween.

According to a further aspect of the invention is to be reliably prevented that an unintentional force on only one of the actuating portions displaces the clamping body in the release position. An unintentional release of the cable element could cause the clamping action is no longer sufficiently fast attacks, or in extreme cases even to a drop of the clamping device from the rope and thus to a loss of security. Such unintentional force is, for example, possible if the clamping device is accidentally pressed while pulling along the cable element against the rock wall o.

An inventive locking mechanism provides that the clamping body, although by an amount substantially identical pressure force on the two operating sections of the Clamping position in the release position are adjustable, while on the other hand, the actuating mechanism by greatly differing in amount pressure forces on the two actuating portions, in particular a compressive force on only one of the two actuating portions, is adjustable in a blocking position, in the further movement of the two operating sections towards each other is blocked. It is virtually ruled out that both operating sections are inadvertently actuated essentially with an equal compressive force in the amount, so that the risk of unintentional adjustment into the release position is minimized according to the invention.

When the magnitude of the compressive forces acting on the two actuating portions is identical or substantially identical (with the compressive forces in the opposite direction), the two actuating portions are movable towards each other, thereby moving the clamping bodies to the release position. "Essentially identical" may include cases where the magnitude of the force varies by +/- 30% or +/- 50%. However, if the amounts of force differ even more, and in particular when only one of the actuating portions a compressive force acts, the actuating mechanism is guided into a blocking position in which further movement of the actuating portions is blocked to each other. Then also an increase of the unilaterally (asymmetrically) acting pressure forces does not cause the clamping body to move into the release position. Rather, the clamp body remain in the clamping position.

Such a blocking position can be realized according to the invention by two guide tracks, each with a substantially parallel to the guide track extending release track, run into the guide elements guided therein when adjusting in the release position, and each having a branching off barrier track, in which the guide elements when adjusting in the Restrict locking position. The locking tracks do not run essentially parallel to the guide track, but transversely thereto, preferably starting from the release track in the direction of the guide track. The guide tracks and the guide elements guided therein are each assigned to one of the two actuating sections, wherein the joint actuation of the two actuating sections with essentially the same compressive force leads to a run-in of the guide elements into the release tracks. The release tracks are sufficiently long so that the guide elements guided therein reach a front end of the release track at the earliest when the clamping bodies are arranged in the release position. In an asymmetrical, especially in a single-sided force on the operating sections that the actuating portion associated guide element, which acts on the smaller or no force, pressed by the one-sided load to the inner edge of the guide track, so that the guide element ultimately in the locking track enters. The locking track is short so that the guide element guided therein already reaches a front end of the locking track when the clamping bodies are still arranged in the clamping position and not yet in the release position.

Preferably, the guide tracks are introduced into the rear portions of the lever having the actuating portions. The guided in the guide tracks guide elements may be guide pins and / or guide pins, which are forcibly guided in a pivoting of the lever along the guide tracks so that they move a coupled thereto via articulated struts carriage along the guide direction. Due to the symmetrical arrangement of the lever with guide tracks introduced therein as well as the symmetrical arrangement of the struts with guide elements attached thereto about the guide track, the pressure force of the climber acting transversely to the guide track can be deflected into a thrust force directed in the guide direction in the direction of the guide track which shifts the slide ,

In other words, the actuating mechanism may comprise a force deflection mechanism which transmits the compressive force acting on the two actuating sections when actuated transversely to the guide direction onto a carriage such that the carriage with the clamping body coupled thereto is movable in the guide direction. As a result, can be moved in the direction of the guideway by the pressing force of the climber, which is laterally directed to the guideway.

The carriage may be arranged on a rail in such a way that it is positively guided in the guide direction upon actuation of the actuating sections along the rail. The coupled thereto clamping body, which are guided in the guide grooves, are moved away from each other during a movement in the guide direction by the increasing distance between the guide grooves when they are pushed by the carriage in the guide direction.

In order to enable this radially directed movement of the clamping body, the clamping device may have two guided by the carriage in the guide direction and each having a side wall of the guideway enclosing holding parts, to each of which one of the clamping body is attached. The holding parts may be arranged between the front and rear contact surfaces of the carriage such that they only follow a movement of the carriage in and against the guide direction, while their movement is released transversely to the guide direction. Since the holding parts engage around the side walls of the guideway, they follow the radial course of the side walls during a movement in the axial direction, the course of the side walls of the guideway corresponding to the course of the two guide grooves.

The biasing member for returning the clamp body to the clamped position may be a spring member such as a coil spring mounted on the carriage and on a base portion of the clamp device. Due to the bias of the spring element of the carriage can be pulled against the guide direction, which in turn leads to the coupled to the carriage clamp body are guided against the guide direction in the clamping portions of the guide grooves in which they narrow the guideway, and what the other causes the operating portions to be urged outwardly away from the track to an unactuated condition.

With regard to a simple insertion of the rope element in the guideway, it has proven to be expedient that the guideway has a unilaterally open profile such as a U-shaped or a C-shaped profile. The rope element can then be inserted into the guideway via the open profile side. A bottom wall of the guide track may have the rail for guiding the carriage along the guide track on the side facing away from the guide track.

In order to prevent the clamping device from accidentally falling off the cable element, a cover element may be provided for at least partially closing the open profile side in the clamping position and for releasing the open profile side in the release position. The cover element covers the open side in the clamping position at least so far that the cable element can not be removed via the open profile side. For this purpose, a rod-shaped or rod-shaped cover element may be sufficient that the guide track at least partially spans in the transverse direction, so that the guide track is at least partially closed. Preferably, however, the cover element is plate-shaped.

With regard to a user-friendly handling of the clamping device, it has been found to be advantageous that the cover element is directly or indirectly coupled to the clamping body and is movable together with this by actuation of the two operating sections. A Aufeinanderzubewegung the two operating sections causes so on the one hand, an adjustment of the clamping body in the release position and on the other hand, a release of the open side of the guideway. In the release position, the cable element can thus be easily removed from the guideway, while it is particularly securely received in the clamping position in the preferably completely closed guideway.

Preferably, at least two cover elements, each preferably in the form of a plate, are provided, of which each cover element is coupled to a clamping body, and which preferably overlap one another at least partially in the clamping position. Both the clamping body and the cover elements are moved by the actuation of the actuating portions radially outwardly away from the center of the guideway and release the guideway. In the unactuated state, the first cover element covers the open profile side of the guideway, starting from a first side at least partially, while the second cover element covers the open profile side of the guideway, starting from a second side at least partially. Since the cover elements overlap at least partially, the open side of the guideway is completely covered. If the cover elements are each formed in the form of a plate extending in the axial direction, the guide track in the clamping position becomes an annular closed, tubular guide channel in which the cable element is received in a particularly secure manner.

Alternatively or additionally, the clamping body may be selected from a body from the group consisting of spherical clamping bodies, cylindrical clamping bodies, parallelepipedal clamping bodies, pyramidal clamping bodies, polygonal clamping bodies and roller-shaped clamping bodies.

In a particularly preferred embodiment, the clamping body is substantially cylindrical with at least one flattened area, a corrugated area, a notch and / or a groove. As a result, the cable element can be clamped firmly between two clamping bodies.

Preferably, the clamping device has a receiving device, in particular an opening formed in a base body for a tether. The clamp body can then be easily attached to a conventional via ferrata set.

The invention further relates to a method for securing an object, in particular a person, to a cable element with a clamping device according to the invention, characterized by the following steps: inserting the cable element into the cable Guideway after the adjustment of the clamping body in the release position by actuation of the actuating portions, adjusting the clamping body in the clamping position by releasing the operating sections, guiding the rope element along the guideway.

In the following description, the invention will be explained with reference to the accompanying drawings, to which reference is expressly made with regard to details essential to the invention. In the drawing shows:

1 a perspective view of a clamping device according to the invention with removed cover plate,

2 a view of the clamping device according to the invention from the front,

3 a view of the clamping device according to the invention from the side,

4 a view of the clamping device according to the invention from below,

5 a view of the clamping device according to the invention from above,

6 a perspective view showing the clamping device according to the invention from below, while it is held on a cable element,

7 3 is a perspective view showing the clamping device according to the invention from above, while it is held on a cable element,

8th a perspective view showing the clamping device according to the invention from below while it releases the cable element in the release position,

9 a perspective view showing the clamping device according to the invention from above, while releasing the cable element in the release position,

10 a view of the clamping device according to the invention in the release position from above,

11 a view of the clamping device according to the invention in the release position from below,

12 a view of the clamping device according to the invention in the blocking position from above

13 a view of the clamping device according to the invention in the locked position from below

14 a translucent view of the clamping device according to the invention in the blocking position from above, and

15 a translucent view of the clamping device according to the invention in the locked position from below.

1 shows a clamping device according to the invention 10 in a perspective view from above. An optional protective cover 70 is shown in a detached state, giving a view of an actuating mechanism 30 and a biasing element 18 is released in the form of a spring.

The clamping device 10 has a guideway running along a guide direction F. 12 for picking up a rope element 100 on. That in the guideway 12 recorded rope element 100 is in the 6 and 7 shown. In the guide direction F, the cable element 100 be pulled through the guideway without it going through in the guideway 12 arranged clamp body 14 . 16 is clamped. When on the rope element 100 However, contrary to the guide direction F is pulled, clamp the clamp body 14 . 16 fixed the cable element, so that a further relative movement of the clamping device relative to the cable element 100 is prevented.

The central axis, along the guideway 12 is also referred to as axial direction, while a direction perpendicular thereto is referred to as a radial direction. 2 shows a view from the front into the guideway 12 into it. As in 2 is particularly clearly shown, the two clamping body 14 . 16 for clamping the rope element 100 in the guideway 12 arrange and narrow these. The rope element 100 is between the two clamping bodies 14 . 16 passed. The reference numerals 14 . 16 in 1 do not show the clamp body itself, but merely indicate the positions, starting from which the clamp body 14 . 16 in a clamping position down into the guideway 12 protrude.

The two clamp bodies 14 . 16 are essentially cylindrical and have a corrugated surface, leaving a rope element 100 Especially between them can be trapped. An upper area of the clamp body 14 . 16 is each in a guide groove 20 . 22 guided, wherein the guide grooves in a bottom wall of the guideway 12 are formed.

The course of the guide grooves 20 . 22 is particularly evident in the 4 and 5 shown: They each point to a clamping section 23 on, at the in the guide direction F a release section 24 followed. The release sections 24 the two guide grooves 20 . 22 are in a lateral direction that in 4 from top to bottom, more spaced apart than the clamping portions 23 , This causes the clear width of the guideway 12 is severely narrowed when the two clamp body 14 . 16 in the clamping sections 23 are guided while the clear width of the guideway is increased when the two clamp body 14 . 16 are guided in the release sections. The two clamp bodies 14 . 16 be from the clamp sections 23 in the release sections 24 moved so that the clamping device 10 before anchoring the rope element 100 can be removed and after anchoring back on the rope element 100 can be put on. The guide grooves 20 . 22 run symmetrically about the center M of the guideway 12 ,

The clamping sections 23 each include an angle α of about 10 ° with respect to the guide direction F, so that the distance between the clamping portions in the guide direction increases only slowly, while the release portions 24 Include an angle β of more than 50 ° with the guide direction, so that the distance between the guide portions increases rapidly in the guide direction.

Laterally outside the guide grooves 20 . 22 the side walls run 37 the guideway 12 , These sidewalls 37 in their course correspond to the course of the guide grooves 20 . 22 , In other words, the sidewalls are running 37 in the guide direction F gradually apart, leaving the guideway 12 in the guide direction F gradually widened gradually. In case of a crash of the climber, when the rope element 100 moved against the guide direction F by the clamping device, so that the clamping body in the direction of the clamping portions 23 be moved, the two clamp body 14 . 16 between the side walls 37 the guideway 12 and the rope element 100 clamped and press from both sides firmly against the intervening rope element 100 , Another movement of the clamping device 10 opposite the rope element 10 is prevented by this clamping action.

The biasing element 18 in the form of a spring is so on the clamping device 10 attached that by its action the clamping bodies 14 . 16 be pulled into the clamping position in which they are the guideway 12 narrowing further than in the 8th to 11 shown release position.

For this purpose, the biasing element 18 on the one hand to a sledge 33 coupled, in turn, the clamping body 14 . 16 coupled, and on the other to the outside of the bottom wall of the guideway 12 coupled, so that the biasing element 18 the sled 33 pushes against the guide direction, causing the clamping body in the direction of the clamping portions 23 the guide grooves 20 . 22 be urged.

The clamping device according to the invention 10 also has the actuating mechanism 30 with two operating sections 32 . 34 on, by the user of the clamping device 10 for adjusting the clamping body 14 . 16 can be actuated in the release position. In the 1 to 7 is the operating mechanism 30 shown in the unactuated state while in the 8th to 11 is shown in the actuated state, in which the clamping body 14 . 16 are arranged in the release position.

To operate the two operating sections 32 . 34 moved towards each other by a pressing force of the user. The direction of this pressure force is in the 4 and 5 denoted by X.

The operating sections 32 . 34 are at the back ends of levers 36 . 38 arranged, wherein the two levers via a perpendicular to the guide direction F extending axis of rotation 39 opposite the guideway 12 pivotable on both sides of the guideway 12 are attached. Outwardly facing surfaces of the levers 36 . 38 form the operating sections 32 . 34 that easily grabbed by hand and in the direction of the guideway 12 can be pressed. In the unactuated state, the two levers run 36 . 38 essentially parallel to the guideway 12 with the center axis M of the guideway as the axis of symmetry. This symmetrical arrangement of the levers around the guideway 12 is in the 4 and 5 shown particularly clearly. The axes of rotation 39 The levers pivot on the guideway 12 , with the rear ends of the lever 36 . 38 move towards each other when the levers are in the direction of the guideway 12 be pivoted.

Furthermore, the clamping device according to the invention 10 a force deflection mechanism 31 on, through which the transverse to the guideway 12 on the operating sections 32 . 34 acting pressure forces X of the user are deflected so that the carriage 33 upon actuation of the operating sections 32 . 34 moves in the guide direction F, and through which the operating portions 32 . 34 by the bias of the biasing member 18 away from each other back to the starting position to be moved when the operating sections 32 . 34 be let go. For this purpose, a plurality of hingedly connected and obliquely opposite to the guide direction F and the extension direction of the lever arranged struts 41 provided the sled 33 can push in the direction of leadership. Important here is the symmetrical arrangement of the struts 41 around the guideway 12 as the axis of symmetry, so that the forces directed transversely to the guide direction, the forces on the struts 41 on the sled 33 act, compensate each other, while the along the guide direction F directed force components, the over the struts 41 on the sled 33 acting on each other to a resultant pushing force on the carriage 33 complete. The sled 33 can along a linear rail 43 be guided in an outer surface of the bottom wall of the guideway 12 is arranged.

The force deflection mechanism 31 has a guide track on each side of the guideway 26 on, in which a guide element 29 is guided. About the movable in the guide tracks 26 mounted guide elements 29 are the back parts of the lever 36 . 38 that the operating sections 32 . 34 exhibit, to the struts 41 coupled. The levers facing the ends of the struts 41 can be between two plate-shaped from the rear ends of the lever in the direction of the guideway 12 be received protruding projections.

The guide tracks 26 each have a preferably substantially parallel to the guideway 12 running release track 27 and a transverse thereto and branching off barrier track 28 on. If the two operating sections 32 . 34 are operated with a substantially identical compressive force X, the press in the guide tracks 26 guided guide elements 29 each with substantially equal force against the radially outer edge of the guide tracks 26 so that the guide elements 29 in the movement of the operating sections 32 . 34 along the length of the guideway 12 running release traces 27 be guided. The release traces 27 are so long in the axial direction that the guide elements 29 reach their end at the earliest when the levers are pivoted so far inward, that the clamping body are arranged in the release position.

The release position is particularly clear in the 8th to 11 shown: The operating sections 32 . 34 are moved far toward each other and the levers are pivoted far inward, leaving the guide elements 29 at the front ends of the release tracks 27 attacks. At the same time are the sled 33 and thus also the clamping body 14 . 16 moved far to the right in the guide direction F. The clamp body 14 . 16 are in the release sections 24 the guide grooves 20 . 22 arranged where they are far from each other and the guideway 12 release. The open guideway, ready to insert the rope element 100 is, is particularly evident in 11 shown the clamping device 10 in the release position from below shows.

If only one of the operating sections 32 is subjected to a compressive force X, the guide element 29 on the opposite side of the guideway 12 not against the outer edge of the guide track 26 pressed. Rather, the guide element runs 29 that the non-actuated operating section 34 is assigned, in the radially inwardly branching off and shorter in the axial direction locking track 28 one. The guide element 29 already beats at the end of the barrier track 27 on, when the levers 36 . 38 not yet fully pivoted inward. At this time is the sled 33 not completely shifted to the right and the clamp body 14 . 16 narrow the clear width of the guideway still. This blocking position is in the 12 to 15 shown. By this locking mechanism is prevented that only one-sided or a strong asymmetric operation offset the clamping device in the release position.

In the 6 and 8th is particularly clearly shown that the guideway 12 in the form of a one-sided open profile 50 is formed. About the open profile page 52 can the rope element 100 in the guideway 12 be inserted when the clamping device 100 is in the release position. The opposite is the open profile page 52 in the clamping position of two plate-like cover elements 54 . 55 covered, which overlap at least partially (see 6 ). The cover elements 54 . 55 are so to the clamp body 14 . 16 coupled so that they move together with these in the release direction and at the same time radially outward or counter to the release direction and at the same time radially inward. The cover elements may alternatively be rod-shaped, rod-shaped o. The like. Be formed, provided that they are in the unactuated state, the open profile side 52 the guideway 12 close so far that the guided in the guideway rope element 100 not over the open profile side of the guideway 12 can get.

According to the invention causes an actuation of the two operating sections 32 . 34 So not only a movement of the clamping body in the guideway in a release position, but also a movement of the cover elements 54 . 55 in a release position in which they open the profile page 52 release the guideway. Conversely, the biasing element urges 18 in the unactuated state, not only the clamp body 14 . 16 in the clamping position, but also the cover elements 54 . 55 in a closed position in which they cover the open profile side of the guideway and a drop of the clamping device of the rope element 100 prevent.

The simultaneous movement of the cover elements 54 . 55 and the clamp body 14 . 16 is caused by the fact that the cover elements and the clamping body in each case to holding parts 35 are arranged, which are the side walls 37 the guideway 12 embrace and each between two laterally projecting contact surfaces 45 of the sled 33 are arranged so that they move the carriage 33 in and against the guide direction F follow, while their movement is released transversely to the guide direction (see. 5 and 10 ), so that they are in the radial direction the course of the side walls 37 and the guide grooves 20 . 22 can follow. The clamp body 14 . 16 may be starting from a cover plate of the holding elements 35 through the guideway 12 extend through, while at the lower ends of the clamp body 14 . 16 the cover elements 54 . 55 can be attached. A side wall of the holding parts 35 can along an outside of the sidewall 37 the guideway 12 run so that the side wall 37 the guideway 12 between the side wall of the holding part 35 and the clamp body 14 . 16 is included.

With the clamping device according to the invention described, a person can secure himself to a rope element by performing the following steps: Inserting the rope element 100 in the guideway 12 after adjusting the clamping body in the release position by actuating the actuating portions, adjusting the clamping body in the clamping position by letting go of the operating sections, guiding the cable element along the guideway. The clamping device can be pulled against the guide direction along a cable element, while the cable element is clamped when pulled in the opposite direction between the clamping body.

LIST OF REFERENCE NUMBERS

10

clamping device

12

guideway

14

first clamp body

16

second clamping body

18

biasing member

20

first guide groove

22

second guide groove

23

clamping portions

24

release members

26

guide tracks

27

releasing trail

28

blocking lanes

29

guide elements

30

actuating mechanism

31

Kraftumlenkmechanismus

32

first operating section

33

carriage

34

second operating section

35

holding parts

36

first lever

37

Side wall of the guideway

38

second lever

39

axis of rotation

41

pursuit

43

Rail for guiding the carriage

45

Contact surfaces of the carriage

50

C-shaped profile

52

open profile page

54

first cover element

55

second cover element

60

recording device

70

protective cover

100

cable element

F

guide direction

M

Middle of the guideway

X

compressive forces

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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 assumes no liability for any errors or omissions.

Cited patent literature

• WO 2010/142690 [0006]
• WO 2010/142690 A1 [0009, 0013]

Claims (16)

Clamping device ( 10 ), comprising: a guideway running along a guiding direction (F) ( 12 ) for guiding a cable element ( 100 ) by the clamping device, at least one in the guideway ( 12 ) movably mounted clamping body ( 14 . 16 ) for clamping the cable element ( 100 ) in the guideway when this against the guide direction (F) through the guideway ( 12 ), at least one biasing element ( 18 ), by the biasing force of the clamping body ( 14 . 16 ) is urged from a release position into a clamping position in which he the guideway ( 12 ) narrowed more than in the release position, characterized by an actuating mechanism ( 30 ) for adjusting the clamping body ( 14 . 16 ) from the clamping position into the release position with two operating sections ( 32 . 34 ) which are movable towards each other for actuating the operating mechanism by pressing force (X). Clamping device according to claim 1, characterized in that the actuating sections ( 32 . 34 ) each part of a lever ( 36 . 38 ), the two levers ( 36 . 38 ) preferably around transverse, in particular approximately perpendicular to the guide direction extending axes of rotation ( 39 ) are pivotable. Clamping device according to claim 2, characterized in that the two levers ( 36 . 38 ) substantially symmetrical about the guideway ( 12 ) are arranged, and in each case at a front end of the axis of rotation ( 39 ) and at a rear end of the operating section ( 32 . 34 ) exhibit. Clamping device according to one of the preceding claims, characterized by two in the guideway ( 12 ) movably mounted clamping bodies ( 14 . 16 ) between which the cable element ( 100 ) can be clamped in the clamping position, and each closer in the clamping position in the middle (M) of the guideway ( 12 ) are arranged as in the release position. Clamping device according to claim 4, characterized in that the clamping body ( 14 . 16 ) each in a along the guide direction (F) extending guide groove ( 20 . 22 ) are guided, wherein the guide grooves ( 20 . 22 ) starting from a clamping section ( 23 ), in which the clamping body ( 14 . 16 ) are guided in the clamping position, to a release section ( 24 ), in which the clamping bodies are guided in the release position, wherein the two release portions are further spaced from each other than the two clamping portions. Clamping device according to claim 5, characterized in that an angle (α) between the clamping portions ( 23 ) of the guide grooves and the guide direction (F) is in each case smaller than 30 °, preferably smaller than 10 °, while an angle (β) between the release sections ( 24 ) of the guide grooves and the guide direction (F) is greater than 30 °, preferably greater than 60 °. Clamping device according to one of the preceding claims, characterized in that the actuating mechanism ( 30 ) at a pressure force on only one of the two actuating portions and / or by differing pressure forces (X) on the two actuating portions ( 32 . 34 ) is adjustable in a locking position, in which a movement of the two operating portions is blocked to each other. Clamping device according to claim 7, characterized by two guide tracks ( 26 ) each having a substantially along the guideway ( 12 ) release track ( 27 ), in which guided guide elements ( 29 ) enter when adjusting in the release position, and each with a branching off barrier track ( 28 ), wherein in the blocking position, at least one guide element in one of the locking tracks ( 28 ) is arranged. Clamping device according to one of the preceding claims, characterized in that the actuating mechanism ( 30 ) a force deflection mechanism ( 31 ), which corresponds to the two operating sections ( 32 . 34 ) upon actuation transversely to the guide direction (F) acting compressive force (X) in such a way on a carriage ( 33 ) transmits that the carriage ( 33 ) with the clamping body coupled thereto ( 14 . 16 ) is movable in the guide direction (F). Clamping device according to claim 9, characterized by two of the carriage ( 33 ) guided along the guide direction (F) and in each case one side wall ( 37 ) of the guideway ( 12 ) encompassing holding parts ( 35 ) each having at least one clamping body ( 14 . 16 ). Clamping device according to one of the preceding claims, characterized in that the guideway is a ( 12 ) unilaterally open profile such as a U-shaped or a C-shaped profile ( 50 ) for inserting the cable element ( 100 ) in the guideway ( 12 ) via the open profile page ( 52 ) having. Clamping device according to claim 11, characterized by at least one cover element ( 54 . 55 ) for at least partially closing the open profile page ( 52 ) in the clamping position and to release the open profile page ( 52 ) in the release position. Clamping device according to claim 12, characterized in that the at least one cover element ( 54 . 55 ) directly or indirectly to the clamping body ( 14 . 16 ) is coupled and together with this by actuation of the two operating sections ( 32 . 34 ) is movable Clamping device according to claim 12 or 13, characterized by two cover elements preferably each formed in the form of a plate ( 54 . 55 ), of which each cover element is attached to a clamping body ( 14 . 16 ), and which preferably at least partially overlap one another in the clamping position. Clamping device according to one of the preceding claims, characterized in that the clamping body ( 14 . 16 ) is selected from a body selected from the group consisting of spherical clamping bodies, cylindrical clamping bodies, cuboid clamping bodies, pyramidal clamping bodies, polygonal clamping bodies and roller-shaped clamping bodies. Clamping device according to one of the preceding claims, characterized by a receiving device ( 60 ) for a tether, preferably in the form of a through hole.

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