Cable rope clamp for a cable rope, cable rope having a cable rope clamp and method for clamp a cable rope clamp to a cable rope

By designing cable rope clamps with gaps, the problem of handling large-diameter cable ropes in the prior art requires a lot of manpower and easy damage under high tensile loads is solved, achieving more efficient clamping and damage reduction effects.

CN119546877APending Publication Date: 2025-02-28NEMACH INTELLECTUAL PROPERTY GMBH
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202380052876.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-06-16
Filing Date
2023-06-16
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

Existing cable rope clamps require a lot of manpower, time and energy when dealing with cable ropes of larger diameters, and are prone to damage the rope or reduce their efficiency under high tensile loads.

Method used

A cable rope clamp is designed, which includes a retainer and a rope wedge, which forms a gap between the rope clamping surface of the wedge and the support surface of the retainer, and the friction between the wedge surface and the wedge matching surface is lower than the friction between the clamping surface and the rope, which improves resistance to axial thrust.

Benefits of technology

It is achieved easier attachment and release of cable ropes under limited manpower, time and energy, and reduce damage and efficiency to cable ropes under high tensile loads.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119546877A_ABST
    Figure CN119546877A_ABST
Patent Text Reader

Abstract

There is provided a cable cord clamp for clamping a cable cord, comprising: a holder provided with an opening for receiving a cord and a cord wedge channel; a rope wedge disposed in the rope wedge channel; the invention relates to a retainer for a rope wedge comprising a rope clamping surface and a wedging surface, the retainer further being provided with a rope bearing surface and a wedge mating surface. The wedge mating surface of the retainer extends along the wedging surface of the cord wedge to mate with the wedging surface of the cord wedge in use. The rope clamping surface of the rope wedge frictionally engages the rope section by a first amount of friction and the wedging surface of the rope wedge frictionally engages the wedge mating surface by a second amount of friction, the second amount of friction being lower than the first amount of friction.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention generally relates to the clamping of cable ropes. Background Art

[0002] Cable rope, also referred to as steel cable (steel cable), comprises metal cable strands twisted into a rope. Such cable rope can be used dynamically, for example for lifting and hoisting or for the transmission of mechanical power, or statically, for example for the transmission of suspension or other forces. The cable rope discussed herein usually has a carbon steel cable. The cable rope discussed herein usually has a diameter of at least 10 mm, and the cable usually has a diameter of at least 0.5 mm. The cable rope can even have a diameter of at least 20 mm, at least 25 mm, or even 40 mm or more, or even 60 mm or more.

[0003] Cable ropes typically include connectors to connect the ropes, such as end connectors that connect the ends of the ropes to connection points, such as fixed mountings or attachment points for tools. Since cable ropes consist of rope-lay bundles with strands of relatively fragile individual cables, care should be taken that the coupling connectors do not unduly affect the efficiency, function, and life of the ropes. This can be achieved by permanently attaching the connectors to the cable ropes at the time of manufacture, such as by pressing the connectors onto the ropes, anchoring the connectors to the ropes, or embedding the strands of the cables of the ropes into the connectors in a controlled environment.

[0004] Sometimes a connector needs to be releasably attached to a cable rope and / or needs to be attached to a cable rope in the field. A typical example is connecting or disconnecting the free end of a crane's closing rope to or from a grab bucket in the field, for example to switch grabs or replace ropes. In this case, before the rope can be attached to the attachment point of the grab bucket, the free end of the rope first needs to be threaded through a number of pulleys that provide the necessary winding pattern for operating the grab bucket. Due to the restricted clearance of the rope at the pulleys, the free end of the rope will be threaded through without it being connected in place. In practice, the connection is then achieved by attaching a clamp to the rope, which carries the end connection.

[0005] Conventionally, a cable cord clamp known as a wedge socket is used, which comprises a holder and a cord wedge, the holder being provided with a cord opening for receiving the cable cord, a cord wedge channel, and the cord wedge being arranged in the cord wedge channel. In use, the free end of the cable cord is inserted through the cord opening, bent around the wedge and looped out via the cord opening. Next, the wedge is pulled into the holder using the cord, so that both sides of the cord loop are clamped against the holder.

[0006] The disadvantage of known cable rope clamps is that for larger diameters, for example greater than 20 mm or 40 mm, bending the rope around the wedge requires a lot of manpower, time and energy in practice. In addition, releasing the cable rope wedged in the retainer may also require a lot of manpower, time and energy.

[0007] An alternative rope clamp has been proposed, comprising a retainer and a rope wedge, the retainer being provided with a cable opening for receiving a cable rope, a rope wedge channel, and the rope wedge being arranged in the rope wedge channel. In such a clamp, the straight free end of the rope can be inserted into the rope wedge channel via the opening and can then be inserted symmetrically between the wedge segments. When the rope is pulled back, the wedge segments engage the opposite walls of the channel and the wedge segments clamp the rope between the wedge segments. Disadvantages of such a clamp include that axial thrusts transmitted to the clamp via the cable rope may push the segmented wedges out of engagement, and under high tensile loads, clamping the wedge segments may damage the rope and / or reduce its efficiency.

[0008] CN102701042, JPS5977150A, EP0179961A1 and US5392496A1 disclose cable rope clamps in which the cable rope is clamped between two wedges positioned on opposite sides of the cable rope. It has been observed that these cable rope clamps suffer from axial thrusts transmitted to the wedges via the cable rope, which, under high tensile loads, may push the wedges out of engagement and / or may damage the rope and / or reduce its efficiency. Summary of the invention

[0009] The present invention aims to provide a cable rope clamp which mitigates the above-mentioned disadvantages while substantially maintaining its advantages. In particular, the present invention aims to provide a cable rope clamp which can be relatively easily attached to and / or released from a rope, particularly in the field and with limited manpower, time and effort to attach. Furthermore, the present invention aims to provide such a cable rope clamp which has an improved resistance to axial thrust forces transmitted to the clamp via the cable rope and / or with which damage to the cable rope and / or reduction in efficiency under high tensile loads is reduced.

[0010] To this end, the present invention provides a cable rope clamp for clamping a cable rope according to claim 1, the cable rope clamp comprising:

[0011] - a retainer provided with an opening for receiving the rope and with a rope wedge passage,

[0012] - a rope wedge, which is arranged in a rope wedge channel,

[0013] the rope wedge comprises a rope gripping surface and a wedging surface, the wedging surface facing away from the rope gripping surface and extending at a rope wedging angle relative to the rope gripping surface,

[0014] - the retainer is also provided with a rope bearing surface and a wedge mating surface,

[0015] - the rope bearing surface of the retainer extends along the rope gripping surface of the rope wedge to form a gap therebetween, in which gap a rope section, in particular a straight rope section, such as a straight free end of a rope, extends in use, the rope section passing through the rope opening into the rope wedge channel of the retainer,

[0016] - a wedge mating surface of the retainer extends along the wedging surface of the rope wedge so as to cooperate with the wedging surface of the rope wedge in use,

[0017] - wherein the rope gripping surface of the rope wedge is arranged to frictionally engage the rope segment with a first amount of friction, and

[0018] - wherein the wedging surface of the rope wedge is arranged to frictionally engage the wedge counter surface with a second amount of friction, the second amount of friction being lower than the first amount of friction.

[0019] By providing a lower friction between the rope wedge and the mating surface than between the rope wedge and the rope, the rope wedge is relatively easily pulled into engagement by pulling back on the rope. Engagement of the clamp onto the rope can then be performed by simply inserting a straight section of the rope into the clamp via the rope insertion opening, for example, by axially inserting the free end of the rope through the opening into the rope wedge slot to extend in the gap between the rope wedge and the retainer, and then pulling back the rope until the slippage between the rope and the retainer stops at a given tensile load. Thus, the clamping force increases with the axial load on the rope and is related to the maximum axial load that has been applied to the rope. The lower friction between the rope wedge and the mating surface facilitates the disengagement of the rope wedge. Clamping the rope between the rope wedge and the retainer increases the resistance to axial thrust compared to clamping the rope between two rope wedges. As such, for any of the cable cord clamps disclosed herein, it is preferred that only a single side of the cord is pressed via one or more wedges, while the opposite side of the cord is pressed against a non-wedge element, such as a retainer.

[0020] In this context, the amount of friction can generally be defined as the amount (magnitude) of force that resists the movement of two objects relative to each other, such as the amount of force that resists the slip or sliding of two surfaces relative to each other. The amount of friction can be defined by the coefficient of friction between two contacting materials. The amount of friction can also be defined by two objects that are interlocked, which provides resistance to the relative movement of two objects, such as a cable rope and a rope wedge or retainer. For example, two objects can interlock when portions of the two objects overlap in a direction transverse to the pulling direction of the force pulling the objects away from each other. For example, sharp protrusions, profiles and / or grooves can be used to interlock two objects, thereby increasing the amount of friction. Friction reducing intermediate structures, such as load-bearing plates or roller groups, can be used to reduce the amount of friction.

[0021] By clamping a straight section on the rope in the gap between the rope clamping surface of the rope wedge and the supporting surface of the retainer, the wedge clamps the rope directly to the retainer and is only stressed in two opposite directions. This allows the rope to be flattened, with the strands of the cable repositioned transversely to the clamping force. This prevents the loss of rope efficiency caused by damage or pinching of the individual cables of the rope. Preferably, a portion of the periphery of the cable is left free to facilitate the cross-section of the rope to change in form, such as two opposite lateral areas of the periphery of the rope between the opposite areas that contact the wedging surface and the supporting surface respectively. In this way, the clamped rope can be loaded axially until approximately the same breaking load is reached without clamping. Preferably, the wedging surface and the rope supporting surface extend substantially parallel to each other. The rope clamp can be provided with a connector, such as an eye or a pin to connect the rope, such as connecting the rope to a connection point, such as a fixed mounting portion or an attachment point of a tool. The rope clamp may also be directly connected to an implement or tool, such as a grab at the end of the rope or a stopper attached midway along the rope. A straight section of a rope is generally defined as a section of the rope that does not bend back on itself, which would otherwise result in a generally U-shaped or C-shaped section of the rope. Preferably, for any embodiments disclosed herein, no portion of the rope, at least at or near the clamping end of the rope, bends back on itself.

[0022] The rope wedging angle (α) at ​​which the wedging surface extends relative to the rope gripping surface is advantageously chosen to be between 3° and 9° and is preferably 7°.

[0023] By arranging the wedging surface and / or the wedge mating surface as the bearing surface of the sliding bearing structure, a reduced friction between the wedging surface and its mating surface can be achieved relatively easily.Preferably, the sliding bearing structure is arranged on the main body part of the rope wedge.

[0024] By providing the sliding bearing structure with at least one of a plastic material, preferably PTFE or nylon, a composite material, bronze or cast iron, very low friction compared to, for example, steel-steel contact can be achieved while maintaining pressure resistance.

[0025] The main body of the rope wedge may comprise or may be made of high strength steel, preferably S690, especially when a roller set is used for cooperation between the wedging surface and the wedge mating surface. The main body of the retainer may comprise or may be made of low carbon steel, preferably S355.

[0026] The wedging surface and the wedge mating surface can cooperate via a friction reducing intermediate structure, which is preferably a bearing plate or a roller set. Such a roller set can, for example, include cylindrical rollers of hardened steel. As an alternative, such an intermediate structure can be embodied as a slide plate of a pressure-resistant low-friction material, for example as mentioned above for the sliding bearing structure.

[0027] Frictional engagement may be facilitated by providing the gripping surface of the rope wedge with a groove that receives a portion of the mantle surface of the rope in use. To further facilitate frictional engagement between the gripping member and the rope, the surface of the groove may be provided with a profile to grip the mantle surface of the rope in use. Such a profile may, for example, include ridges and / or notches. A gentle profile is preferred in order to prevent damage to the outer cable of the rope. The rope bearing surface is preferably smooth relative to the gripping surface to facilitate slippage of the rope relative to the rope bearing surface when the rope pulls the wedge surface into engagement with the wedge mating surface.

[0028] The mating surface may be disposed on a surface of the retainer. In this configuration, the boundary of the wedge slot may be formed by the mating surface on the retainer.

[0029] The mating surface may alternatively be disposed on the auxiliary wedge, forming a releasable portion of the retainer, and arranged between the rope wedge and the retainer. In this configuration, the boundary of the rope wedge channel may be formed by the mating surface on the auxiliary wedge. The auxiliary wedge may form a part of the retainer in use. In this way, it will be appreciated that, at least in use, an embodiment of the retainer may consist of a single body, such as a main body portion, or the retainer may include a plurality of bodies that may be connected or may at least have a contact surface in use. For example, the auxiliary wedge may be a releasable portion of the retainer. For example, in use, the auxiliary mating surface of the main body portion of the retainer may contact the auxiliary wedging surface of the auxiliary wedge.

[0030] Such an auxiliary wedge may be used as an option to facilitate disengagement of the clamp and may include an auxiliary wedging surface extending along the bearing surface of the retainer to cooperate with said bearing surface of the retainer in use. The auxiliary wedging surface may face away from the wedge mating surface and may extend at an auxiliary wedging angle (β) relative to the wedge mating surface. The auxiliary wedging angle at which the wedging surface extends relative to the rope clamping surface is advantageously selected to be between 7° and 20°, and preferably 12°.

[0031] The rope wedge and the auxiliary wedge can then be extended with a relatively large total wedging angle to facilitate the release of the wedge. In order to counteract accidental disengagement of the cable rope clamp during use, the rope wedge and / or the auxiliary wedge can be fixed to the retainer via a releasable fixing structure. Preferably, only the auxiliary wedge is fixed to the retainer. Such a releasable structure can be a fixing pin, screw or bolt, but can alternatively or additionally include a movable fixing catch.

[0032] The present invention also provides a cable rope, comprising a cable rope clamp as described above or in any of the variations discussed below, wherein a rope segment, in particular a straight free end of a rope, passes through a rope opening into a rope wedge channel of a retainer and is clamped in a gap between a rope wedging surface of the rope wedge and a rope supporting surface of the retainer, and wherein the rope clamping surface of the rope wedge frictionally engages the rope segment with a first amount of friction, and wherein the wedging surface of the rope wedge frictionally engages the wedge mating surface with a second amount of friction, the second amount of friction being lower than the first amount of friction.

[0033] To facilitate engagement of the cable rope clamp onto the cable rope, a portion of the rope section extending beyond the rope wedge may be provided with an auxiliary clamp to entrain the rope wedge and pull the rope section into engagement as the rope is withdrawn through the rope entry opening.

[0034] Furthermore, the present invention provides a method of clamping a cable rope clamp onto a cable rope using the cable rope clamp in any of the variations described above, wherein a section of the rope, in particular a straight free end of the rope, is inserted into a rope wedge channel through a rope entry opening of a retainer of the rope clamp so that the section of the rope extends through a gap between a rope clamping surface of the rope wedge and a rope supporting surface of the retainer, wherein rope retraction causes the rope to engage the rope wedge via the rope clamping surface and entrains the rope wedge so that the wedging surface of the rope clamp is pulled into engagement with the wedge mating surface and the rope clamping surface of the rope wedge clamps the section of the rope to the rope supporting surface of the retainer.

[0035] Usually, the shape of the rope clamping surface can be different from the outer shape of the cable rope to prevent the shape-closed connection formed by the outer shape of the rope clamping surface and the cable rope. On the contrary, preferably, a friction-based force connection is realized between the rope clamping surface and the cable rope.

[0036] When clamping the cable rope clamp onto the cable rope, as an option applicable to any method disclosed herein, it may be preferred that after inserting the rope through the rope entry opening and before the rope is retracted, the rope is coupled to the rope wedge and then, the rope is bent toward the rope wedge or at least bent relative to the rope wedge. When the cable rope is retracted, the bend formed by bending the rope can be used to retract the rope wedge further into the rope wedge channel in order to clamp the cable rope.

[0037] For example, the rope may be coupled to the rope wedge by a limiting member connected to or formed by the rear end of the rope wedge. The limiting member is arranged to limit the movement of the cable rope relative to the rope wedge when bending the rope to allow the rope to bend rather than deflect away from the rope wedge. As an option, the rope may be inserted into the channel of the limiting member before bending the rope toward the rope wedge.

[0038] The present disclosure also contemplates a method for loosening a cable rope clamp from a cable rope, wherein the cable rope is clamped between a rope bearing surface of a retainer of the cable rope clamp and a rope clamping surface of a rope wedge, the rope wedge being at least partially positioned in a rope wedge channel of the retainer together with an auxiliary wedge. The method comprises the steps of releasing the clamping connection between the auxiliary wedge, the retainer and the rope wedge, and removing the cable rope from the rope wedge channel, in particular in that order.

[0039] Since the cable rope clamp can be loosened from the cable rope by releasing the clamping connection between the auxiliary wedge, the retainer and the rope wedge, the auxiliary wedge can be designed to have a different purpose than the rope wedge: while the rope wedge can help clamp the cable rope when it is retracted so that the rope engages the rope wedge, the auxiliary wedge can help to easily release the cable rope from the cable rope clamp.

[0040] It should be understood that the cable rope clamp from which the cable rope is released can be any cable rope clamp disclosed herein.The cable rope clamp can have been clamped onto the cable rope using any method disclosed herein.

[0041] Preferably, but not necessarily, the method further comprises removing the auxiliary wedge and the rope wedge from the rope wedge channel.

[0042] The invention will be further explained based on the exemplary embodiments shown in the drawings. The exemplary embodiments of the invention are given by way of non-limiting illustration. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In the attached picture:

[0044] Figure 1A An embodiment of a cable cord clamp is shown in isometric schematic view;

[0045] Figure 1B The cable cord clamp is shown in side view;

[0046] Figure 2A The cable rope clamp is shown in a cross-sectional view taken along line BB;

[0047] Figure 2B A detailed view C is shown;

[0048] Figure 3A An embodiment of a rope wedge is shown in an isometric bottom view;

[0049] Figure 3B The rope wedge is shown in side view;

[0050] Figure 3C A cross-sectional view of the rope wedge is shown in cross-sectional view taken along line AA;

[0051] Figure 4A An alternative embodiment of a cable cord clamp is shown;

[0052] Figure 4B Another alternative embodiment of a cable cord clamp is shown;

[0053] Figure 5A and Figure 5B Another embodiment of the rope clamp 1 is shown in an isometric view and a sectional view, respectively;

[0054] Figure 5C A detailed cross-sectional view showing a particular embodiment of a rope wedge;

[0055] Fig. 6A A rear view is shown, and Figure 6B Shown is a partial side view of a rope wedge that may be used in any of the rope grips disclosed herein. DETAILED DESCRIPTION

[0056] Figure 1A An embodiment of a cable rope clamp 1 is shown in a schematic isometric view. Figure 1BA cable rope clamp 1 is shown in a side view, generally with dashed lines indicating parts that are not directly visible. The cable rope clamp 1 clamps onto a cable rope section 11, in particular a straight free end of a cable rope, which may be a lifting rope, for example. The rope section 11 has been inserted through the rope entry opening 3 of the holder 2 of the rope clamp 1. It will be understood that for the sake of clarity of the drawings, only a small part of the total length of the cable rope is depicted in the drawings.

[0057] The retainer 2 comprises a rope wedge channel 4 in which at least a portion of a rope wedge 5 is positioned. The rope wedge channel 4 is defined between a rope clamping surface 8 and a wedge mating surface 9 of an auxiliary wedge 17, so that the auxiliary wedge 17 is considered to be comprised by the retainer 2. The retainer 2 also comprises a retainer body portion 14, which is formed by a body separate from the auxiliary wedge 17, so that the auxiliary wedge 17 can be moved relative to the retainer body 14, at least during assembly of the rope clamp 1. The rope clamping surface 8 and the wedge mating surface 9 face each other and are oriented at a certain angle relative to each other. In particular, the rope wedge channel 4 tapers in a direction corresponding to the tensioning direction 25 of the cable rope, as shown in FIG. Figure 1B In other words, the rope wedge groove 4 tapers toward the opening 3 of the retainer 2.

[0058] Preferably, as an option, for example in Figure 1A In the option depicted in , the retainer 2 is formed as a solid body, i.e. a body without internal degrees of freedom such as hinged parts, at least around the rope wedge channel 4. In this case, the cable rope 11 must be inserted through the rope entry opening 3 in order to pass through the rope wedge channel 4 from the front to the rear of the retainer 2.

[0059] The auxiliary wedge 17 has a tapered shape and, in use, tapers towards a direction corresponding to the tensioning direction 25 of the cable rope.

[0060] The tapered shape of the auxiliary wedge 17 is obtained due to the angle between the wedge counter surface 9 of the auxiliary wedge 17 and the auxiliary wedging surface 18 on the opposite side of the auxiliary wedge 17 .

[0061] The auxiliary wedge 17 in this embodiment enables the angle α between the rope clamping surface 6 and the wedge mating surface 9 to be different from the angle α+β between the rope clamping surface 6 and the auxiliary wedge mating surface 9′ of the retainer 2. The angle between the rope clamping surface 6 and the auxiliary wedge mating surface 9′ of the retainer 2 thus corresponds to Figure 1BIn this way, different amounts of friction can be obtained between the wedging surface 7 of the rope wedge 5 and the wedge mating surface 9 and between the auxiliary wedging surface 18 of the auxiliary wedge 17 and the auxiliary wedge mating surface 9' on the retainer body part 14. Furthermore, the angle between the auxiliary wedge mating surface 9' and the rope clamping surface 6 can be varied, for example by varying one or both of the angles α and β. As in particular Figure 1B As can be seen in the cross-sectional view of the cable rope segment 11, the rope segment 11 is positioned in a gap 10 formed between the rope bearing surface 8 of the retainer 2 and the rope clamping surface 6 of the rope wedge 5. The rope bearing surface 8 and the rope clamping surface 6 preferably extend substantially parallel. This provides a clamping force on the cable rope segment 11 that is substantially perpendicular to the elongation direction of the cable rope segment. This in turn may advantageously allow the strands of the cable comprised by the cable rope segment 11 to be repositioned relative to each other, thereby allowing the cable rope segment 11 to be flattened. Preferably, a portion of the periphery of the cable rope segment 11 is free to facilitate the cross-sectional shape of the cable rope segment 11 to change form.

[0062] like Figure 1B As shown, in the cable rope clamp 1, different surfaces of different components can be forced against each other, especially when the rope section 11 is tensioned in the tensioning direction 25. Figure 1A In particular, the rope section 11 is preferably clamped directly against the rope bearing surface 8 of the retainer 2 and indirectly against the auxiliary wedge mating surface 9' via the rope wedge 5 and the auxiliary wedge 17.

[0063] In use, when the cable rope segment 11 has been positioned between the rope bearing surface 8 of the retainer 2 and the clamping surface 6 of the rope wedge 5, the cable rope segment 11 is pulled in the tensioning direction 25. During this pulling, the cable rope segment 11 contacts the rope bearing surface 8 as well as the clamping surface 6, for example due to gravity and / or manual positioning. Initially, the cable rope segment 11 may slide relative to the rope bearing surface 8 and even relative to the clamping surface 6. However, as the rope wedge 5 moves further towards the opening 3 of the retainer 2 due to the sliding of the wedge surface 7 relative to the wedge mating surface 9, the cable rope segment 11 only slides with the rope bearing surface 8 and substantially not with the clamping surface 6 of the rope wedge 5, so that the cable rope segment 11 pulls the rope wedge 5 further towards the opening 3.

[0064] As the rope wedge 5 is pulled further towards the opening 3 , the clamping force of the rope wedge 5 pressing the cable rope section 11 against the rope bearing surface 8 increases to a level such that the cable rope section 11 no longer slips relative to the rope wedge 5 .

[0065] The initial slippage between the wedging surface 7 and the wedge mating surface 9 is achieved by a first amount of friction between the rope clamping surface 6 and the rope segment 11 being higher than a second amount of friction between the wedging surface 7 and the wedge mating surface 9 of the rope wedge 5. A third amount of friction may be defined between the rope segment 11 and the rope bearing surface 8. Initially, as the cable rope segment 11 is tensioned, the third amount of friction is preferably lower than the first amount of friction between the rope clamping surface 6 and the rope segment 11, allowing the cable rope segment 11 to slip relative to the rope bearing surface 8 while the cable rope segment 11 frictionally engages the rope wedge 5. In use, i.e. when the cable rope segment 11 is tensioned and the cable rope is used, for example, for lifting, the third amount of friction is sufficient to prevent the cable rope segment 11 from slipping relative to the rope bearing surface 8. It will be appreciated that the third amount of friction between the rope segment 11 and the rope supporting surface 8 depends on the clamping force clamping the rope segment 11 between the rope supporting surface 8 and the rope clamping surface 6, which is oriented perpendicular to the rope supporting surface 8, and on the coefficient of friction between the rope segment 11 and the rope supporting surface 8. In order to release the cable rope segment 11 from the cable rope clamp 1, the tension on the cable rope segment 11 is preferably completely released. Next, one or both of the rope wedge 5 and the auxiliary wedge 17 are moved away from the opening 3 to release the clamping force squeezing the cable rope segment 11 between the rope clamping surface 6 of the rope wedge 5 and the rope supporting surface 8 of the retainer 2. In order to move the rope wedge 5 and / or the auxiliary wedge 17, the rope wedge 5 and / or the auxiliary wedge 17 may be impacted, for example using a hammer or other impact tool. To this end, preferably, a portion 17' of the auxiliary wedge 17 protrudes out of the opening 3, such as, for example, in Figure 1A 17 to facilitate impacting the auxiliary wedge 17. When the cable rope clamp 1 comprises a releasable fixing structure 23, it may be necessary to release the releasable fixing structure 23 before impacting the auxiliary wedge 17. Additionally or alternatively, the cable rope section 11 may be pulled in a direction opposite to the tensioning direction in use so as to move the rope wedge 5 and / or the auxiliary wedge 17 in a direction away from the opening 3.

[0066] The rope wedging angle α between the wedging surface 7 and the rope gripping surface 6 is Figure 1B Preferably, the angle α is selected between 3° and 9°, in particular between 5° and 8°, and is preferably 7° or about 7°. The angle β is Figure 1B β is also indicated as the auxiliary wedging angle between the auxiliary wedging surface 18 and the wedge counter surface 9. The angle β is preferably selected between 7° and 20°, in particular between 10° and 15°, and is preferably 12° or about 12°.

[0067] In order to prevent the auxiliary wedge 17 from being pushed away from the opening 3, the auxiliary wedge 17 is fixed to the holder 2 via a releasable fixing structure 23. In this particular embodiment, the releasable fixing structure 23 comprises a locking plate 24 fixed to the holder 23 using a bolt connection. The locking plate 24 is aligned with at least a portion of the auxiliary wedge 17 and thus prevents the auxiliary wedge 17 from being released, in particular when the tension load on the rope 11 is low or even absent, but also in examples when the tension load in the rope 11 is high, which may result in the force on the auxiliary wedge 17 having a force component in a direction opposite to the tensioning direction 25. A force having a force component in a direction opposite to the tensioning direction does not necessarily mean that the direction of the force is in line with the tensioning direction, and the force vector of the force on the auxiliary wedge can be described as the sum of: a force component in a direction opposite to the tensioning direction and in line with the tensioning direction, and another non-zero force component in a direction perpendicular to the tensioning direction. It will therefore be understood that in examples, the auxiliary wedge may not be self-locking. In other embodiments, the locking plate 24 may also be aligned with at least a portion of the rope wedge 5 to prevent the rope wedge 5 from being accidentally released.

[0068] The auxiliary wedge 17 and / or the rope wedge 5 can be pushed away from the opening 3 since the clamping force on the auxiliary wedge 17 is oriented perpendicularly to the auxiliary wedge mating surface 9 ′ and the clamping force on the rope wedge 5 is oriented perpendicularly to the wedge mating surface 9 .

[0069] exist Figure 1A and Figure 1B In the example of FIG. 2 , the cable cord clamp 1 is provided with a connection eye 26 to connect the cord 1 to a connection point, such as a fixed mounting portion or an attachment point of a tool.

[0070] Figure 2A A cross-sectional view taken along line BB is shown. Figure 1B Instructions. Figure 2A A cable rope section 11 is shown clamped between the rope bearing surface 8 and the clamping surface 6 of the rope wedge 5 .

[0071] Figure 2B A detailed view C is shown, as Figure 2A As indicated. Figure 2B In FIG. 5 , it can be seen that the gripping surface 6 of the rope wedge 5 is provided with a groove 22 in this embodiment. Figure 2B As depicted, the groove 22 receives a portion of an outer portion of the cable cord section 11 , which may include a cover surface.

[0072] from Figure 2A and Figure 2BAs can be seen in FIG. 1 , a portion of the circumference of the cable rope section 11 does not contact the retainer 2 or the rope wedge 5. This allows the cable rope section 11 to be clamped between the rope support surface 8 and the rope clamping surface 6. Figure 2B The cross-sectional shape of the cable rope section 11 is deformed as can be seen in FIG. In use, the cross-sectional shape of the cable rope section 11 may therefore be non-circular.

[0073] As an option not depicted in the figures, at least a portion of the surface of one or more grooves 22 may be provided with ridges, teeth, protrusions, notches and / or other surface objects that may increase the amount of friction between the cable rope segment 11 and the gripping surface 6 of the rope wedge 5 in which the grooves 22 are provided. The ridges, teeth, protrusions, notches and / or other surface objects may form a profile 16 to grip the covering surface of the rope segment 11 in use.

[0074] The rope bearing surface 8 of the retainer 2 is preferably substantially smooth and is therefore not provided with surface objects such as ridges, teeth, protrusions, recesses, which surface objects may increase the amount of friction between the cable rope section 11 and the rope bearing surface 8 when the rope 11 slides on the rope bearing surface 8 and / or prevent damage to the covering surface of the rope 11.

[0075] A gap having a non-zero height h is preferably present between the clamping surface 6 of the rope wedge 5 and the rope bearing surface 8 of the retainer 2. In use, the gap having a non-zero height h ensures that the clamping force is transmitted through the cable rope section 11, rather than directly between the rope wedge 5 and the retainer 2, to ensure that the cable rope section 11 is actually clamped in the cable rope clamp 1.

[0076] Figures 3A-3C An embodiment of a rope wedge 5 is shown in an isometric bottom view, a side view and a cross-sectional view along line AA, respectively, wherein dashed lines generally indicate components that cannot be seen directly.

[0077] like Figures 3A-3C As shown, the rope wedge 5 may include a rope wedge body part 13 and a sliding bearing structure 12, which may be connected to the rope wedge body part 13. The body part 13 may be provided with a rope clamping surface 6, and the sliding bearing structure 12 may be provided with a wedging surface 7. The body part 13 and the sliding bearing structure 12 may include different materials, optionally with different surface treatments. In this way, the friction coefficients of the rope clamping surface 6 and the wedging surface 7 may be independently adjusted by selecting different materials and / or surface treatments. In other embodiments, the material of the rope clamping surface 6 may even be different from the material included by the body part 13.

[0078] For example, the sliding bearing structure 12 may include a low-friction material, while the main body 13 includes a material with high stiffness that resists compression. Additionally or alternatively, the retainer main body 9 forming the wedge mating surface 9 or the auxiliary wedge mating surface 9' may include a low-friction material. When the clamp 1 includes an auxiliary wedge 17, at least a portion of one or both of the auxiliary wedging surface 18 and the auxiliary wedge mating surface 9' may include a low-friction material or be composed of a low-friction material. An example of a low-friction material is a composite material, for example including a braided fiber impregnated with a polyester resin, which is commercially available under the name Teclite. Other examples of low-friction materials are bronze, plastics, or any other material with a low coefficient of friction, such as a thermoplastic, for example PTFE or nylon. Instead of using a low-friction material or as an addition, one or more friction-reducing intermediate structures may be used.

[0079] Similarly, in an embodiment, the retainer 2 may comprise a retainer body portion 14 comprising a different material than the portion of the retainer 2 provided with the rope bearing surface 8 and / or the wedge mating surface 9 or the auxiliary wedge mating surface 9 ′.

[0080] Figure 4A A side view of an alternative embodiment of a cable cord clamp 1 is shown, comprising a retainer 2. Figure 4A In FIG. 2 , the dashed cross-sectional lines generally indicate the components inside the retainer 2 . Figure 1A and 1B In contrast to the embodiment of the cable cord clamp 1, in this particular embodiment of the cable cord clamp 1, the cord wedge 5 directly contacts the retainer body portion 14. In particular, the wedging surface 7 of the cord wedge 5 directly contacts the wedge mating surface 9 of the retainer 2. In this embodiment, the boundary of the wedge channel 4 is formed by the mating surface 9 of the retainer 2 and the cord bearing surface 8 of the retainer 2.

[0081] In this way, in particular when a tensioning force is applied to the cable rope section 11, the cable rope section 11 is clamped between the retainer 2 and the rope wedge 5, and the rope wedge 5 is clamped directly between the cable rope section 11 and the wedge mating surface 9 on the retainer 2, in particular the retainer body part 14 of the retainer 2. Figure 1A and Figure 1B Not using an auxiliary wedge may provide a simpler design compared to the embodiment shown in FIG. , which may be easier to assemble.

[0082] The amount of friction at which the rope clamping surface 6 of the rope wedge 5 engages the rope segment 11 is preferably higher than the amount of friction at which the wedging surface 7 of the rope wedge 5 engages the wedge mating surface 9 of the retainer 2. Thus, in use, initially when the cable rope segment 11 is tensioned, the rope wedge 5 takes longer to slide relative to the wedge mating surface 9 than the rope wedge takes to slide relative to the rope segment 11. This can reduce the risk of the cable rope segment 11 being pulled out of the clamp 1 when tensioned.

[0083] In order to reduce the amount of friction between the wedging surface 7 of the rope wedge 5 and the wedge mating surface 9, a sliding bearing structure 12 is provided. Figure 4A The sliding bearing structure 12 in the embodiment of the present invention is arranged on the main body 13 of the rope wedge 5, but the sliding bearing structure 12 can be additionally or alternatively positioned on the retainer 2. In this way, the wedging surface 7 and / or the wedge mating surface 9 can be arranged as the bearing surface of the sliding bearing structure 12. Preferably, the bearing surface comprises at least one of a plastic material, a composite material, bronze or cast iron, or any other material that is generally combined with the material of the surface against which the bearing surface is pressed and provides a low friction coefficient, and has sufficient compression resistance, and the plastic material is preferably PTFE or nylon.

[0084] Figure 4B Another alternative embodiment of a cable cord clamp 1 is shown in side view, comprising a retainer 2. Figure 4B In FIG. 2 , the dashed cross-sectional lines show the components inside the retainer 2. Figure 4B In an embodiment of the present invention, a set of cylindrical rollers 15 are provided which are rotatably mounted on a roller frame 21. The roller frame 21 is connected to the rope wedge 5 and faces away from the rope clamping surface 6. Alternatively, the roller frame 21 can be connected to an auxiliary wedge 17 facing toward the rope wedge 5. As a further alternative, Figure 4B The cable rope clamp 1 does not comprise an auxiliary wedge and the roller 15 may be rotatably connected to the holder 2 and may therefore be provided with a wedge mating surface 9. The roller 15 is an example of a friction reducing intermediate structure.

[0085] The rollers 15 may be rotationally connected to the roller frame 21, or even directly connected to the rope wedge 5 via a bearing, such as a plain bearing or a roller bearing capable of carrying a compressive load. The rollers 15 provide a small amount of friction between the rope wedge 5 and the auxiliary wedge 17, which allows the rope wedge 5 to move towards the opening 3 when clamping begins. Preferably, the rollers 15 comprise hardened steel.

[0086] Another example of a friction reducing intermediate structure is a plate of low friction material, which is provided with a wedging surface 7 or a wedge mating surface 9. In an embodiment, two bearing plates can be used as friction reducing intermediate structures, wherein the plates are provided with each of the wedging surface 7 and the wedge mating surface 9, and a low friction coefficient between the wedging surface 7 and the wedge mating surface 9.

[0087] Figure 5A and 5B A further embodiment of a cable clamp 1 is shown in an isometric view and in a sectional view, respectively. Figure 5C A detailed cross-sectional view of a particular embodiment of a rope wedge 5 is shown, which consists of Figure 5A and 5B The rope clamp 1 comprises:

[0088] exist Figure 5B and 5C The rope wedge 5 best depicted in the drawing comprises a rope wedge channel 28 through which the rope 11 can extend. The rope wedge channel 28 can be formed by a rear section 27 of the rope wedge 5. The rear section 27 is oriented away from the rope opening 3 and / or the rope wedge slot 4 in use. In use, the rope wedge channel 28 can be oriented at a certain angle relative to the rope wedge slot 4 and / or at an angle δ relative to the rope clamping surface 6, in particular an angle between 5 and 60 degrees, or an angle between 15 and 50 degrees, or even an angle between 30 and 45 degrees. In this way, a portion of the rope 11 can be curved or bent corresponding to the angle between the rope wedge channel 28 and the rope wedge slot 4, such as Figure 5B The rope wedge channel 28 can be completely surrounded by the rear section 27 of the rope wedge 5 or only partially surrounded by the rear section 27 of the rope wedge 5 .

[0089] When the rope 11 passes through the rope wedge passage 28 and the rope 11 is pulled in the tensioning direction 25, the bend or curve in the rope 11 can help the rope 11 to pull the rope wedge 5 towards the rope entry 3, or generally in the tensioning direction 25. Therefore, the method of clamping the cable rope clamp 1 to the cable rope 11 can include the steps of inserting the rope, especially the free end of the rope, through the optional rope wedge passage 28 of the rope wedge 5 and bending the rope relative to the rope clamping surface 6, especially before the rope is retracted.

[0090] Figure 5A and 5BThe D-shaped shackle 50 depicted in the figure is optional, and an embodiment of the rope clamp 1 is envisioned without said D-shaped shackle 50. In such an embodiment, the eye 51 in the auxiliary wedge 17, at which the D-shaped shackle is connected, may not be needed and may therefore be omitted. Furthermore, the additional D-shaped shackles 52, 53 are also optional and may be omitted.

[0091] Fig. 6A A rear view of the rope wedge 5 is shown, Figure 6B A partial side view of a rope wedge 5 is shown, which may be used in any rope clamp disclosed herein, such as but not limited to Figure 1A , 1B , the rope clamps depicted in 4A, 4B and 5A-5C. Fig. 6A and Figure 6B Also shown is a rope section 11. The rope wedge 5 comprises a wedge body part 13 and a sliding bearing structure 12 and is provided with a rope gripping surface 6.

[0092] Fig. 6A and 6B The rope wedge 5 includes a limiting member 60, which is positioned at the rear end 61 of the rope wedge 5 and is generally connected to the rear section 63 of the main body portion 13. It will be understood that in use, the rope wedge 5 will be inserted into the retainer 2 with the front end first. Any connecting element 66 can be used to connect the limiting member 60 to the main body portion 13. In an alternative embodiment, the limiting member 60 is formed by the rope wedge 5 itself.

[0093] exist Fig. 6A and 6B In the example of , the connecting element 66 allows the channel 65 to move relative to the rear section 63. This is achieved, for example, when a threaded connection is formed between the connecting element 66 and the rear section 63. In use, the cable cord 11 can be passed through the channel 65, and the channel 65 can then be moved toward the rear section 63 to bend the cable cord.

[0094] The restraining member 60 is generally used to couple the rope 11 to the rope wedge 5 so as to allow the rope 11 to bend relative to the wedge body portion 13 , preferably towards the rope gripping surface 6 . Fig. 6A and Figure 6B The example of the restraining member 60 depicted in FIG. 6 includes a restraining body 64 that defines a channel 65 for receiving a portion of the cable cord 11. Fig. 6AThe passage 65 is shown to be completely surrounded by the restriction body 64, but this is not necessary. Instead, it is sufficient if the restriction body 64 is able to sufficiently restrict movement between the cable cord 11 and the wedge body portion 13 to allow the cable cord 11 to bend toward the wedge body portion 13. For example, it is sufficient if a portion of the cable cord 11 is positioned between the rear section 63 of the body portion 13 and the restriction body 64.

[0095] from Fig. 6A It will be appreciated that it is contemplated, but not required, that the inner diameter Di of the passage 65 is greater than the outer diameter Do of the cable cord 11. This may allow the cable cord 11 to be easily inserted into the passage 65 and through the restriction body 64.

[0096] The angle ε decreases when the cable rope 11 bends towards the wedge body portion 13. For example, the angle ε may decrease from an angle between 20 and 40 degrees, such as approximately 30 degrees, to an angle of approximately 0 degrees.

[0097] Note that the drawings are only schematic representations given by way of non-limiting examples. In the drawings, identical or corresponding sections are marked with the same reference numerals.

[0098] Many variations will be apparent to those skilled in the art.For example, embodiments of the cable cord gripper are contemplated as any embodiment with or without auxiliary wedges, and optionally with a sliding bearing structure and / or a friction reducing intermediate structure.

[0099] Such modifications are to be understood as being included within the scope of the present invention as defined in the appended claims.

[0100] Reference numerals list

[0101] 1. Rope clamp

[0102] 2. Retainer

[0103] 3. Rope entry opening

[0104] 4. Rope wedge groove

[0105] 5. Rope wedge

[0106] 6. Rope gripping surface

[0107] 7. Wedged into the surface

[0108] 8. Rope bearing surface

[0109] 9. Wedge mating surface

[0110] 10. Clearance

[0111] 11. Rope section

[0112] 12. Sliding bearing structure

[0113] 13. Rope wedge main part

[0114] 14. Main body of the retainer

[0115] 15.Rollers

[0116] 16. Contour

[0117] 17. Auxiliary wedge

[0118] 18. Auxiliary wedging surface

[0119] 20. Auxiliary clamping member (not shown)

[0120] 21. Roller frame

[0121] 22. Grooves

[0122] 23. Releasable fixed structure

[0123] 24. Locking plate

[0124] 25.Tension direction

[0125] 26. Connecting Eyes

[0126] 27. Rear section of rope wedge

[0127] 28. Rope wedge channel

[0128] 50.D-shaped hook and loop

[0129] 51. Eye

[0130] 52.D-Shaped Hook

[0131] 53.D-Shaped Hook

[0132] 60. Restriction components

[0133] 61. Backend

[0134] 63. Rear section

[0135] 64. Restricted Subjects

[0136] 65. Channel

[0137] 66. Connecting elements

[0138] 9'. Auxiliary wedge mating surface

[0139] αRope wedging angle

[0140] β auxiliary wedging angle

[0141] hGap height

[0142] δ Angle relative to the rope gripping surface

[0143] ε is the angle between the cable rope and the main part of the wedge

[0144] Di inner diameter

[0145] Do Outer diameter

Claims

1. A cable rope clamp (1) for clamping a cable rope, comprising: - a retainer (2) provided with a rope opening (3) for receiving a rope and also provided with a rope wedge channel (4), a rope wedge (5) arranged in the rope wedge channel (4), the rope wedge (5) comprising a rope clamping surface (6) and a wedging surface (7), the wedging surface (7) facing away from the rope clamping surface (6) and extending at a rope wedging angle (α) relative to the rope clamping surface (6), The retainer (2) is also provided with a rope bearing surface (8) and a wedge mating surface (9), The rope support surface (8) of the retainer (2) extends along the rope clamping surface (6) of the rope wedge (5) to form a gap (10) between the rope support surface (8) and the rope clamping surface (6), in which gap (10) a rope section (11), in particular a free end of a rope, extends, in use, through the rope opening (3) into the rope wedge channel (4) of the retainer (2), a wedge mating surface (9) of the retainer (2) extending along the wedging surface (7) of the rope wedge (5) to cooperate with the wedging surface (7) of the rope wedge (5) in use, wherein the rope gripping surface (6) of the rope wedge (5) is arranged to frictionally engage the rope section (11) with a first amount of friction, and Wherein, the wedging surface (7) of the rope wedge (5) is arranged to frictionally engage the wedge mating surface (9) with a second amount of friction, the second amount of friction being lower than the first amount of friction.

2. The cable rope clamp (1) according to claim 1, characterized in that: The rope wedging angle (α) at ​​which the wedging surface (7) extends relative to the rope gripping surface (6) is between 3° and 9°, and is preferably 7°.

3. The cable rope clamp (1) according to claim 1 or 2, characterized in that: The wedging surface (7) and / or the wedge-shaped member mating surface (9) are arranged as bearing surfaces of a sliding bearing structure (12).

4. The cable rope clamp (1) according to claim 3, characterized in that: The sliding bearing structure (12) is arranged on the main body (13) of the rope wedge (5).

5. The cable rope clamp (1) according to claim 3 or 4, characterized in that: The sliding bearing structure (12) comprises at least one of a plastic material, a composite material, bronze or cast iron, and the plastic material is preferably PTFE or nylon.

6. The cable rope clamp (1) according to any one of the preceding claims, characterized in that The main body (13) of the rope wedge (5) comprises or is made of high-strength steel, preferably S690.

7. The cable rope clamp (1) according to any one of the preceding claims, characterized in that The body portion (14) of the retainer comprises or is made of low carbon steel, preferably S355.

8. The cable rope clamp (1) according to any one of the preceding claims, characterized in that The wedging surface (7) and the wedge mating surface (9) cooperate via a friction reducing intermediate structure, preferably a carrier plate or a set of rollers (15).

9. The cable rope clamp (1) according to any one of claims 1 to 8, characterized in that: The clamping surface (6) of the rope wedge (5) is provided with a groove (22) which, in use, receives a portion of the covering surface of the rope section (11).

10. The cable rope clamp according to claim 9, characterized in that: The surface of the groove is provided with a profile (16) to grip the covering surface of the rope section (11) in use.

11. The cable rope clamp according to any one of claims 1 to 10, characterized in that: The rope bearing surface (8) is smooth relative to the clamping surface (6) to facilitate sliding of the rope relative to the rope bearing surface (8) when the rope pulls the wedging surface (7) into engagement with the wedge mating surface (9).

12. The cable rope clamp (1) according to any one of the preceding claims, characterized in that The mating surface (9) is arranged on the surface of the holder (2).

13. The cable rope clamp (1) according to any one of the preceding claims 1 to 11, characterized in that The retainer (2) comprises a releasable auxiliary wedge (17) and the mating surface (9) is provided on the auxiliary wedge (17), the auxiliary wedge being arranged between the rope wedge (5) and the auxiliary wedge mating surface (9') of the retainer (2).

14. The cable rope clamp (1) according to claim 13, characterized in that: The auxiliary wedge (17) comprises an auxiliary wedging surface (18) extending along the auxiliary wedge mating surface (9') of the retainer (2) to cooperate with the auxiliary wedge mating surface (9') of the retainer (2) in use.

15. The cable rope clamp (1) according to claim 13 or 14, characterized in that: The auxiliary wedging surface (18) faces away from the wedge mating surface (9) and extends at an auxiliary wedging angle (β) relative to the wedge mating surface (9).

16. The cable rope clamp (1) according to claim 15, characterized in that: The auxiliary wedging angle (β) at which the auxiliary wedging surface (18) extends relative to the wedge mating surface (9) is between 7° and 20°, and is preferably 12°.

17. The cable rope according to any one of claims 13 to 16, characterized in that Both the rope wedge (5) and the auxiliary wedge (17) taper at least partially towards the rope opening (3).

18. The cable rope according to any one of claims 13 to 17, characterized in that A portion (17') of the auxiliary wedge (17) protrudes from the rope inlet opening (3) of the retainer (2).

19. The cable rope clamp (1) according to any one of the preceding claims, characterized in that The rope wedge (5) and / or the auxiliary wedge (17) are fixed to the retainer (2) via a releasable fixing structure (23).

20. The cable rope clamp (1) according to any one of the preceding claims, characterized in that The rope wedge (5) comprises a rope wedge channel (28) through which at least a portion of the rope section (11) can extend, the rope wedge channel being oriented at an angle (δ) relative to the rope clamping surface (6), in particular an angle between 5° and 60°.

21. A cable rope comprising a cable rope clamp (1) according to any one of the preceding claims, characterized in that A rope section (11), in particular a free end of the rope, such as a straight free end of the rope, passes through the rope opening (3) into the rope wedge groove (4) of the retainer (2) and is clamped in a gap between the rope wedging surface (7) of the rope wedge (5) and the rope supporting surface (8) of the retainer (2), and wherein the rope clamping surface (6) of the rope wedge (5) frictionally engages the rope section (11) with a first friction amount, and wherein the wedging surface (7) of the rope wedge (5) frictionally engages the wedge mating surface (9) with a second friction amount, which is lower than the first friction amount.

22. The cable rope according to claim 21, characterized in that A portion of the rope section extending beyond the rope wedge (5) has been provided with an auxiliary gripper (20) to entrain the rope wedge (5) and draw the rope section into engagement when the rope section is retracted through the rope inlet (3).

23. The cable rope according to any one of claims 21 to 22, characterized in that The portion of the rope extending through the rope wedge or through the rope wedge channel is bent, in particular at an angle relative to the rope clamping surface (6).

24. A method of clamping a cable rope clamp (1) onto a cable rope using the cable rope clamp (1) according to any one of claims 1 to 20, characterized in that: A section of the rope, in particular a free end of the rope, is inserted into the rope wedge groove (4) through the rope entry opening (3) of the retainer (2) of the rope clamp (1) so that the section of the rope extends through the gap (10) between the rope clamping surface (6) of the rope wedge (5) and the rope supporting surface (8) of the retainer (2), and wherein the rope is retracted so that the rope engages the rope wedge (5) via the rope clamping surface (6) and entrains the rope wedge (5) so that the wedging surface (7) of the rope clamp (5) is pulled into engagement with the wedge mating surface (9) and the rope clamping surface (6) of the rope wedge (5) clamps the section of the rope to the rope supporting surface (8) of the retainer (2).

25. The method according to claim 24, characterized in that The method also includes inserting the rope through the rope wedge passage (28) of the rope wedge (5) and bending the rope relative to the rope gripping surface (6), particularly before the rope is retracted.

26. The method according to claim 24 or 25, characterized in that Also included is, after inserting the rope through the rope entry opening (3) and before the rope is retracted, coupling the rope to the rope wedge (5) and subsequently bending the rope toward the rope wedge.

27. The method according to claim 26, characterized in that The rope is coupled to the rope wedge by a limiting member (60) which is connected to or formed by a rear end (61) of the rope wedge.

28. The method according to claim 27, characterized in that The rope is inserted into a channel (65) of the restraining member before bending the rope toward the rope wedge.

29. The method according to any one of claims 24 to 27, characterized in that It also includes positioning an auxiliary wedge (17) provided with the mating surface (9) between the rope wedge (5) and the auxiliary wedge mating surface (9') of the retainer (2) before retracting the rope.

30. A method for releasing a cable rope clamp (1) from a cable rope (11), characterized in that The cable rope is clamped between a rope bearing surface (8) of a retainer (2) of the cable rope clamp and a rope clamping surface (6) of a rope wedge (5), the rope wedge being at least partially positioned together with an auxiliary wedge (17) in a rope wedge channel (4) of the retainer, the method comprising the following steps: - releasing the clamping connection between the auxiliary wedge, the retainer and the rope wedge; and - Removing the cable rope from the rope wedge channel.

31. The method according to claim 30, characterized in that The cable rope clamp is clamped on the cable rope using the method of claim 29.

32. The method according to any one of claims 29 to 31, characterized in that Also included is removing the auxiliary wedge and the rope wedge from the rope wedge channel.

33. The method according to any one of claims 29 to 32, characterized in that The cable rope clamp is the cable rope clamp according to any one of claims 1 to 20.

Citation Information

Patent Citations

  • Gripping block for a linear winch

    EP0179961A1

  • Cable clamp

    US5392496A