DE102020135031A1 - Arrangement for attaching components to the ends of a flexible cord - Google Patents

Abstract

The invention relates to an arrangement for fastening components to the ends of a flexible strand, having a press socket and another component, the component having a foot for insertion into the press socket, the foot having a shaft and an end region of the shaft at the proximal end of the foot, wherein the end portion of the shank of the foot, when viewed in cross-section or in plan side view, has a T-shape or a B-shape or a cross-sectional shape resulting therefrom. The invention further relates to a press socket for clamping a blunt end of a flexible strand, such as a rope, cable or rope, the press socket having a corrugation and the press socket being designed such that the press socket deforms when force is applied from the outside and so between the material of the flexible strand and the press fitting and the foot of another component creates a form fit. The invention further relates to a flexible strand which has a press fitting according to the invention at at least one end. The press fitting according to the invention is particularly suitable for permanently clamping the blunt ends of cables, ropes or ropes made of plastic materials, with the form fit between the material of the cable, rope or rope and the press fitting withstanding very high pull-out forces. The press fitting according to the invention and flexible strands provided with it are particularly suitable for the production of safety ropes for transportable objects which have an integrated lock, such as bicycle locks. Furthermore, the invention relates to a method for attaching the press socket to blunt ends of flexible strands.

Description

field of invention

The invention relates to an arrangement for fastening components to the ends of a flexible strand, having a press socket and another component, the component having a foot for insertion into the press socket, the foot having a shaft and an end region of the shaft at the proximal end of the foot, wherein the end portion of the shank of the foot, when viewed in cross-section or in plan side view, has a T-shape, a B-shape or a cross-sectional shape resulting therefrom. The invention further relates to a press socket for clamping a blunt end of a flexible cord, such as a rope, cable or rope, the press socket having a corrugation and the press socket being designed such that the press socket deforms when force is applied from the outside and so between the material of the flexible strand and the press fitting and the foot of another component creates a form fit. The invention further relates to a flexible strand which has a press fitting according to the invention at at least one end. The press fitting according to the invention is particularly suitable for permanently clamping the blunt ends of cables, ropes or ropes made of plastic materials, with the form fit between the material of the cable, rope or rope and the press fitting withstanding very high pull-out forces. The press fitting according to the invention and flexible strands provided with it are particularly suitable for the production of safety ropes for transportable objects which have an integrated lock, such as bicycle locks. Furthermore, the invention relates to a method for attaching the press fitting to blunt ends of flexible strands.

Background of the Invention

A type of rope commonly used today consists of braided plastic fibers. Synthetic ropes are very beneficial because they are lightweight, strong, and very flexible. Plastics are also resistant to the effects of water and weather. Wear and tear from water and weather. Therefore, water sports activities, such as tying boats to a dock or winter sports activities, plastic ropes are often used. Plastic ropes are also increasingly being used as a component of security cords for mobile objects, such as bicycle locks. However, plastic ropes are very smooth and slippery or slippery. A problem when using braided plastic ropes is to attach components, such as eyelets or locking bolts, to the ends of the rope in such a way that these components are not detachably connected to the ends of the rope or withstand high pull-out forces.

The use of press mounts is known, for example, for attachment to cable ends of steel cables. WO 2011/103640 and U.S. 2015/0132050 disclose in this connection a press socket which contains an inner lining made of a deformable material such as aluminum, this inner lining deforming when the press socket is pressed onto the steel cable and the press socket is thereby fastened to the steel cable. Due to the smooth surface of synthetic ropes, the in WO 2011/103640 and U.S. 2015/0132050 disclosed press sockets not suitable for the production of a non-detachable attachment to the ends of the plastic cables.

From the U.S. 4,455,717 and the U.S. 4,157,602 the use of press fittings to create loops on rope ends is known. One end of the rope is laid as a loop and attached to the same end of the rope with the help of the press fitting. However, the embodiments shown here are not suitable for creating non-detachable connections on blunt rope ends, in particular on ropes made of plastic.

DE 94 07 461 U1 describes a very complicated structure for attaching a hook to the end of an expander rope, rubber rope or the like, the hook having a foot piece with clamping elements which overlaps the free end of the rope and a head piece which overlaps the foot piece, characterized in that the hook foot piece and hook head piece are provided with screw threads, when screwing the clamping elements can be driven into the free end of the rope. The same applies to them DE 92 05 945 U1 , which also deals with the attachment of a hook to a rope end, the hook having a foot part, and in the foot part a clamping groove formed by two tong elements, which can be narrowed by the action of force and serves to clamp the end of the rope between the tong elements, is formed, and that at a locking part for locking the tong elements in the clamping connection with the rope end is arranged on the tong elements.

the US5706679A relates to a bicycle lock, which proposes a combination of a U-lock with a cord lock. The strand lock can consist of any suitable flexible material, but a cable or a chain is preferred. The cable ends are secured by compression in aluminum sleeves, which have a recess for receiving a bolt, with the help of which the aluminum sleeve can be rotatably connected to a lock body.

Proceeding from the prior art, the invention was based on the object of providing a device for fastening components to the butt ends of flexible strands that is simple in construction, easy to attach and suitable for producing non-detachable connections, particularly at the ends of plastic cables.

Description of the invention

The object of the invention is achieved by an arrangement for fastening components to the ends of a flexible strand according to claim 1, comprising a press socket and a further component, the component having a foot for introduction into the press socket, the foot having a shank and a end portion of the shaft at the proximal end of the foot, wherein the end portion of the shaft of the foot, when viewed in cross-section or in plan side view, has a T-shape or a B-shape or a cross-sectional shape resulting therefrom.

The invention is further achieved by a press socket for clamping a blunt end of a flexible strand, which is part of the arrangement according to claim 1, characterized in that the press socket has an internal structure in the form of a corrugation, the press socket being set up to the press fitting is deformed when force is applied from the outside and a form fit is created between the material of the rope or rope.

The press fitting is preferably designed in one piece and is therefore easy to produce and attachable to the blunt ends of flexible strands in a simple manner. In cross section, the press socket preferably has an annular or elliptical shape. The corrugation is also elliptical or ring-shaped according to the cross-sectional shape of the press mount and is arranged circumferentially inside the press mount. In one embodiment, the corrugation has 1-10, preferably 2-9 or 3-8, particularly preferably 4-7, 4-6 or 4-5 corrugations. The corrugations are designed in such a way that damage to the end of a flexible strand, such as the corrugations cutting into the flexible strand, is avoided when the press fitting is pressed on.

It has also proven to be advantageous if the corrugations of the press fitting have barbs which prevent the flexible strand from slipping out of the press fitting under high loads.

The press mount according to the invention is preferably made of a material that can be deformed by pressing but still has sufficient strength and stability for producing a non-detachable connection with the flexible strand. It has proven particularly advantageous if the press holder consists of a metal, preferably selected from steel, stainless steel, copper or a metal alloy. Suitable metal alloys are, for example, bronze, brass or iron alloys.

In a further embodiment of the invention, the press socket can have an opening for receiving a fastener, as a result of which the press socket can be connected to a housing, for example the housing of a locking device. Suitable fasteners are screws, rivets, bolts or cylindrical pins. Fastening means that can be pressed into the opening provided for this purpose in the press mount are particularly preferred for the production of non-detachable connections with the housing, i.e. particularly preferred fastening means are bolts or cylinder pins.

In a further embodiment of the invention, the press fitting also has a circumferential collar. This circumferential collar is preferably directed inwards and is preferably located at the distal end of the press socket. The shape of the collar corresponds to the shape of the cross section of the press socket and is, for example, circular or elliptical. The peripheral collar interacts with a corresponding counterpart of a foot of additional components that can be attached to the end of the flexible cord, as will be described below. The press mount according to the invention is therefore particularly advantageous since the press mount is intended to accommodate a further component in order to provide the flexible strand with functions.

A further aspect of the invention relates to a flexible strand which has a press fitting according to the invention at at least one end, preferably at both ends. For use for a wide variety of purposes, the flexible strand can have a further component at the end having the press fitting. For attachment to the distal end of the press socket, the further components are equipped with a foot which is set up in such a way that it interacts with the inwardly directed collar of the press socket. In the simplest case, the base of a further component has a circumferential groove into which the inwardly directed circumferential collar of the press mount engages. For attaching another component to one end of a flexible strand the foot of another component is introduced into the distal opening of the press socket, so that the peripheral collar of the press socket is opposite the groove of the foot of the further component. When a press socket is pressed on, another component can be attached to one end of a flexible strand in a very simple manner by pressing together in a non-detachable manner.

Examples of other components that can be attached to an end of a flexible cord are selected from eyelets, snap-in bolts, mate bolts or any other type of functional means. It is particularly preferred if the further component is formed in one piece with the respective functional unit and the foot.

Depending on the strength and resilience requirements, the further component is preferably made of a metal, particularly preferably selected from steel, stainless steel, copper or a metal alloy such as bronze, brass or an iron alloy.

The construction of the foot of the additional component has proven to be particularly important. The pull-out force to which the press mount is exposed depends on the construction of the foot of the additional component.

In a first embodiment, the foot has a shank, a groove and an end area of the shank at its proximal end, which is inserted into the press socket, the shank and the end area of the shank having the same diameter. However, this design has proven to be disadvantageous, since only insufficient strength of the connection between the press mount and the other component could be achieved, i.e. with a large number of connections created between the press mount and another component, the mobility (wobbling) of the other component was in of the press version too high, which led to high reject rates during production.

In a preferred embodiment, the foot has a shank, a groove and an end area of the shank at its proximal end, which is inserted into the press socket, the end area of the shank having a larger diameter than the shank.

A larger diameter means that the end area of the shaft has a diameter of 1 to 6 mm, preferably 2 to 5 mm, particularly preferably 3 to 4 mm. The end portion of the foot in this embodiment has a T-shape when viewed in cross-section or in plan side view. The shortcomings in relation to the insufficient strength of the connection between the press mount and the further component could be overcome with this embodiment of the foot, i.e. the further component in the press mount no longer wobbled. However, this embodiment of the foot also proved to be disadvantageous, specifically with regard to the pull-out forces that the positive connection between the material of the flexible strand, the press mount and the foot of the additional component must withstand. Due to frequent breaks in the end area of the shaft, only pull-out forces of up to 10 kN could be withstood. However, this is insufficient for use on safety ropes.

In a particularly preferred embodiment, the foot has a shank, a groove and an end area of the shank at its proximal end, which is inserted into the press fitting, the end area of the shank having a larger diameter than the shank. A larger diameter means that the end area of the shaft has a diameter of 1 to 6 mm, preferably 2 to 5 mm, particularly preferably 3 to 4 mm. In this embodiment, the end area of the shank has a B-shape when viewed in cross section or in a top view of a side view, i.e. the end area of the shank in B-shape has a material reinforcement compared to the end area of the shank in T-shape. All deficiencies in relation to the insufficient strength of the connection between the press mount and the other component and in relation to the lack of resistance to pull-out forces could be overcome with this embodiment of the foot, i.e. there was no more wobbling of the other component in the press mount and due to the material reinforcement at the end of the foot shaft, fractures in this area of the foot could be prevented. This made it possible for the form fit between the material of the flexible strand, the press fitting and the foot of the other component to withstand pull-out forces of around 16 kN. This is sufficient for use on safety ropes.

For the embodiments of the foot with an end area of the shaft in a T-shape or in a B-shape or a resulting cross-sectional shape, the groove in the shaft of the foot is designed in such a way that it either connects with the collar of the press mount or the optionally included Crush ring interacts when attaching the press socket to the end of a flexible strand.

For all of the mentioned embodiments of the foot, the end region of the shaft has a Opening for the introduction of a fastener, such as a straight pin, may have.

In a further aspect, the invention relates to an arrangement comprising a press socket according to the invention and a further component, the press socket interacting with a foot of the further component in such a way that the further component can be fastened to one end of a flexible strand.

In the arrangement according to the invention, the further component and the press fitting have the properties and the structure as described above. Preferably, the further component in the arrangement according to the invention has an end region which, when viewed in cross section or in a top view of a side view, has a T-shape or a cross-sectional shape resulting therefrom. It is particularly preferred if the further component in the arrangement according to the invention has an end region which, when viewed in cross section or in a top view of a side view, has a B shape or a cross-sectional shape resulting therefrom. Optionally, the press socket in the arrangement according to the invention can have a compression ring as described above.

The press fitting according to the invention with the described internal structure is particularly advantageous since the form fit between the material of the flexible strand and the press fitting withstands pull-out forces of 10 kN and more, preferably 13 kN and more, particularly preferably 15 kN and more or 20 kN and more . This is sufficient, for example, if the flexible strand with press fittings according to the invention is used as a safety cable for securing or fastening portable objects, such as a bicycle lock.

The flexible strand, which can be permanently connected to a press fitting according to the invention, preferably contains metal components, metal fibers, synthetic fiber material, natural fibers or a mixture of these fibers.

Within the meaning of the invention, a flexible strand is understood to mean a rope, a cable or a rope. It is particularly preferred if the flexible line is a safety cable or safety line for objects that can be moved, for example with the aim of preventing theft.

Safety ropes or safety strands are used in practice, for example, in cable locks for two-wheeled vehicles. Particularly suitable safety ropes or safety strands are, for example, in WO2019/115430 described.

• • das Sicherungsseil drei, vier oder mehr Gelege, Geflechte oder Gewebe aus Fasern oder Garnen aufweist,
• • wobei die Geflechte oder Gewebe übereinander angeordnet sind,
• • und das Sicherungsseil optional als Kern eine Kette aufweisen kann.

According to this, a suitable safety rope for securing objects is characterized in that

• • the safety rope has three, four or more scrims, braids or fabrics made of fibers or yarns,
• • wherein the braids or weaves are arranged one on top of the other,
• • and the safety rope can optionally have a chain as the core.

This construction of the lifeline ensures both improved protection against mechanical impacts such as saws, bolt cutters, tearing or diamond tools due to the presence of the three, four or more braids or weaves of fibers or yarns, as well as improved cut resistance against sharp-edged objects such as knives, due to the presence of the chain. The choice of materials used to manufacture the scrims, braids or fabrics also enables effective protection against the effects of heat and cold.

A non-crimp fabric is a textile fabric that consists of one or more layers of parallel, stretched threads. The threads are usually fixed at the crossing points. The fixation takes place either by material connection or mechanically by friction and/or form fit. Non-crimp fabrics can be single-layer or multi-layer. The thread layers in multi-layer scrims can all have different orientations and also consist of different thread densities and different thread counts. In contrast to fabrics, non-crimp fabrics used as reinforcement structures in fiber-plastic composites have better mechanical properties, since the threads are in a stretched form and therefore there is no additional structural elongation and the orientation of the threads can be specifically defined for the respective application.

Typically, the scrims for use in the lifeline are aligned in parallel or are stranded.

Braids consist of several regularly intertwined strands, such as fibers, yarn, metal wires, etc.

Typically, the braids for use in the lifeline of the present invention are formed as tubular layers.

With regard to the type of material of the fibers or yarns, the same applies to the scrims, braids or fabrics that make up the sheath-like or tubular layers of the safety rope according to the invention.

The fibers or yarns for the formation of the scrims, braids and/or fabrics of the safety strand are preferably selected from chemical fibers and natural fibers or yarns made from them.

Preferred chemical fibers for use in the individual layers of the safety rope are selected from fibers made from natural polymers, fibers made from synthetic polymers, fibers made from inorganic substances and metal fibers.

In one embodiment, the natural polymer fibers are selected from regenerated cellulosic fibers such as viscose, modal, lycocell and cupro; fibers of cellulose esters such as acetate fibers and triacetate fibers; protein fibers such as regenerated protein fibers, modified soybean protein fibers, zein fibers, casein fibers and artificial spider fibers; Polylactide fibres, alginate fibres, chitin fibres, elastodiene fibres, and bio-based polyimide fibres.

In another embodiment, the synthetic polymer fibers are selected from fibers of polyesters such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), and polybutylene terephthalate (PBT); Polyamide (PA), polyimide, polyamideimide, aramid, polyacrylic, modacrylic, polytetrafluoroethylene (PTFE), polyethylene (PE), polypropylene (PP, polychloride, elastane, polybenzoxazole, polybenzimidazole, polyurea, melamine, polyphenylene sulfide, trivynil, elastolefin, elastomultiester, polyvinyl alcohol , vinylal, polycarbonate, and polystyrene.

In a further embodiment, the inorganic material fibers are selected from ceramic fibers, quartz fibers, glass fibers, basalt fibers, carbon fibers, boron fibers, crystal fibers, slag fibers and nanotube fibers.

In another embodiment, the fibers or yarns are selected from polyester fibers (PES), aramid fibers, glass fibers and high modulus polyethylene (HMPE) fibers.

It is particularly preferred if the laid, braided and/or woven fabrics contain mixtures or combinations of the fibers or yarns described above.

In a further embodiment, the safety cable according to the invention or the safety line according to the invention contains a chain. The chain is preferably arranged centrally inside the safety cable or safety line. The chain can be made of different materials, for example metal or plastic.

In a preferred embodiment, the chain is made of metal, such as steel, hardened steel, galvanized steel, stainless steel, titanium, aluminum or a metal alloy.

In a likewise preferred embodiment of the invention, the chain consists of plastic or a composite material. Suitable composite materials are, for example, metal-plastic composite materials, fiber-reinforced or glass-containing composite materials.

In one embodiment, the safety rope also has a sheathing that is preferably designed to be UV-impermeable. In addition, the casing can comprise a plastic material, in particular Teflon, acrylic and/or silicone. This effectively protects the textile fibers from the weather. In addition, this sheathing also holds textile fibers protruding from the fiber composite together. Additional textile fibres, scrims, braids or fabrics can be arranged over the sheathing, which do not necessarily have to fulfill security aspects, but can be printed on to give the strand lock a special graphic design. Alternatively, the sheathing can be printed or color-matched to achieve a desired design.

In a further embodiment, the weather-resistant casing or overlying textile fibers, scrims, braids or fabrics can be designed in such a way that additional safety aspects, for example improved road safety, are ensured. For this purpose, the casing can be equipped with reflective optical elements. Suitable optical elements are known per se and can be selected from lenses or prisms or spheres embedded in the cladding or combinations thereof. Alternatively, a plastic layer containing such optical elements can be arranged on the textile fibers, scrims, braids or fabrics lying over the sheathing.

A further advantageous embodiment of the safety rope consists in the fact that a metallic layer can be arranged between each scrim, mesh or fabric layer. The metallic layer preferably contains metal wires or metal foil. Alternatively, the textile fibers can also be equipped with a metallic coating, the metallic layer being in particular closed. This arrangement of the metallic layers is particularly advantageous and increases the flame resistance of the safety rope. However, non-closed layers can also be present, which in particular have a single wire that is advantageously laid in a spiral shape. This arrangement also helps to improve flame resistance, but in particular increases the tensile, cut and tear resistance of the lifeline.

In a further preferred embodiment, the sheathing of the safety rope can contain abrasive substances. Suitable abrasive substances are, for example, particles that are preferably selected from the group consisting of aluminum oxide, corundum, boron carbide, silicon dioxide, silicon carbide, sand and glass particles. Instead of or in addition to the sheath, the abrasive substances can be contained in layers that are additionally arranged between the individual scrim, mesh or fabric layers. These abrasive materials blunt sharp tools in attempted theft.

The sheathing or intermediate layers arranged between the individual scrim, mesh or fabric layers can contain further additives. Conductive substances, flame retardants, luminescent substances and metals can be contained as additives.

The conductive substances can be selected from the group containing soot, carbon fibers, metal powder and nanoparticles, in particular carbon nanotubes. Combinations of these substances can also be used. Conductive substances can be used to equip the safety rope with smart functions or an electronic anti-theft device. Phosphates, borates, in particular ammonium polyphosphate, tris(tribromoneopentyl)phosphate, zinc borate or boric acid complexes of polyhydric alcohols are preferably used as flame retardants. These additives contribute to increased protection of the safety rope against the effects of heat and fire. Fluorescent and/or phosphorescent substances on an inorganic or organic basis, in particular zinc sulfide and alkaline earth metal aluminates, are preferred as luminescent substances. These additives can contribute to increasing traffic safety (being seen in the dark).

In a further advantageous embodiment, the safety rope can have a water-repellent impregnation. The water-repellent impregnation is preferably applied to the outer casing. However, it is also possible to provide one or more of the scrim, mesh or fabric layers with a water-repellent impregnation.

It is particularly preferred if the individual layers of scrims, braids and/or fabrics consist of or contain fibers and/or yarns of different materials. This allows optimal properties of the safety rope to be created. For example, more interior layers may have high tensile strength and more exterior layers may have high cut, heat and cold resistance, respectively.

Intelligent securing of the strand lock is possible if at least one electrical conductor is arranged in the safety cable and alarm means are provided which trigger an alarm when the electrical conductor is severed. This alert could then be transmitted directly to an application of a mobile computer device, a mobile phone, a smartphone or a tablet PC using suitable transmission means.

In order to ensure protection against theft, the safety rope must be able to be connected to a suitable locking or safety device at both ends.

In principle, all conventional locking devices that are used or can be used to prevent theft of movable objects are suitable. If the locking device is not attached directly to the safety rope, the safety rope preferably has further components or devices at both ends, with which a locking device, such as a padlock, can be connected. In one embodiment, the safety cable therefore has an eyelet at both ends. The eyelets can have different shapes and can be circular or O-shaped, for example. The eyelets can be formed by separate components, for example made of metal or, as described above for the chain, made of a composite material, which can be firmly connected to the respective end of the safety rope by means of the press fitting according to the invention. Steel eyelets are preferably used. Hardened steel eyelets are particularly preferred to improve anti-theft protection. To improve corrosion protection, the eyelets can be provided with corrosion-inhibiting coatings, such as a PVC coating. Alternatively, the eyelets can be galvanized. The size, especially the diameter of the eyelets can vary. Preferably, the eyelets of safety ropes in the area of the anti-theft device of moving objects, an internal diameter in the range from 8 mm to 200 mm, preferably from 8 to 150 mm or from 8 to 100 mm, more preferably from 8 to 90 mm, 8 to 80 mm, 8 to 70 mm or 8 to 60 mm, particularly preferably from 8 to 50 mm, 8 to 40 mm, 8 to 30 mm or 8 to 20 mm.

It may be useful to connect the ends of the safety rope to a locking or safety device that is rigidly connected to the movable object. In a further embodiment, the safety rope can therefore have an eyelet or loop at one end and a suitable safety element at the other end, which can be locked in a locking or safety device permanently installed on the movable object. Objects could be secured by guiding the safety rope around the object, pulling the free end through the eyelet or loop and then locking the free end. Such a permanently installed locking or security device is, for example, a frame lock. The suitable safety element is selected, for example, from a bolt or a block, which is pressed firmly and undetachably into the press socket according to the invention at one end of the safety rope by means of a foot, as already described above.

Furthermore, it is preferred if the safety rope has parts of a locking or safety device at the ends, which interact with one another. Such locking devices are known to those skilled in the field of bicycle locks. In one embodiment of the invention, the locking or safety device is designed as a lock. In a preferred embodiment, the locking or safety device is designed as a lock that can be locked with a key. A combination lock is also conceivable as a locking device. The parts of the locking device that are attached to the ends of the safety rope are preferably pressed firmly and non-detachably into the press socket according to the invention at one end of the safety rope by means of a foot, as already described above. The locking or security device can also contain a motion sensor for alarm purposes.

The length of the safety rope of the invention can be selected differently according to the intended use. In the area of securing two-wheelers, lengths between 50 cm and 200 cm are suitable. Lengths between 50 cm and 160 cm, in particular between 50 cm and 100 cm, are particularly suitable. If other moving objects, such as boats, are to be secured, a correspondingly greater length of safety rope is selected. The same applies to the safety rope according to the invention in the field of industrial applications.

Accordingly, in a particularly preferred embodiment, the invention provides a safety rope for mobile objects, having a press socket according to the invention at a first end, the press socket being connected to a housing, for example a locking device, with the aid of a fastening means; and furthermore having at a second end a press fitting according to the invention with a further component, the further component being pressed together with the safety cable in the press fitting by means of a foot. The additional component is preferably selected from an eyelet, a snap-in bolt or a mate bolt.

In a particularly preferred embodiment, the safety rope according to the invention has a locking device with a locking cylinder in a housing which is accommodated in a protective cover.

• • Einführen des Endes des flexiblen Stranges in das proximal Ende der Pressfassung;
• • Kraftaufbringung von außen, wobei die Pressfassung derart verformt wird, dass die Riffelung der Pressfassung in das Material des flexiblen Stranges eingreift und ein Formschluss zwischen dem Material des flexiblen Stranges ausgebildet wird.

In a further aspect, the invention relates to a method for producing a connection between a blunt end of a flexible strand and a press fitting according to the invention, characterized in that the method comprises the steps:

• • inserting the end of the flexible strand into the proximal end of the ferrule;
• • Application of force from the outside, with the press fitting being deformed in such a way that the ribbing of the press fitting engages in the material of the flexible strand and a positive connection is formed between the material of the flexible strand.

To produce a non-detachable connection between the flexible strand and the press socket, it has proven to be advantageous if a pressure in the range of 0.5 to 1.0 kN/cm ² is applied when the press socket is pressed against the flexible strand and if the diameter of the press socket is reduced by 3 to 8 mm by deformation.

In order to ensure that the form fit between the material of the flexible strand and the press fitting withstands pull-out forces of 10 kN and more, preferably 13 kN and more, particularly preferably 15 kN and more or 20 kN and more, in addition to the aforementioned parameters when pressing of the press fitting to the flexible cord, the diameter and the nature of the flexible cord are chosen so that the flexible cord has sufficient resistance, ie sufficient Has strength for the production of the form fit with the press mount.

In a preferred embodiment of the method according to the invention, when a connection is made between a first end of a flexible strand and a press mount according to the invention, a further component, as described above, is simultaneously pressed in the press mount by means of a foot. The foot of the further component preferably has a groove in which the collar of the press fitting engages in such a way that a non-detachable connection is formed between the further component and the flexible strand.

In a further preferred embodiment of the method according to the invention, the second end of a flexible strand is also connected to a press socket according to the invention, wherein, for use of the flexible strand in connection with a closing device, the second end of the flexible strand is connected to the press socket in the sleeve of a closing device is attached. The second end of the flexible strand is fastened to the press socket in the sleeve using a fastening means which can preferably be pressed into the opening in the press socket provided for this purpose. Suitable connection means that can be pressed in are preferably bolts or cylindrical pins. In a particularly preferred embodiment, a bolt or cylindrical pin is inserted and pressed in completely continuously through the press mount.

When the fastening means is pressed into the opening of the press mount provided for this purpose, the opening is deformed according to the invention in such a way that the press mount and the housing are permanently connected to one another.

The method according to the invention makes it possible in an advantageous manner for the housing to have a planar surface after the fastening means has been pressed in, which has no points of attack for pulling out the bolt or cylinder pin. When using such a fastening on a safety cable for mobile objects, theft security can be further improved.

The invention is explained in more detail below with reference to 14 drawings.

• 1: die generelle Ansicht einer erfindungsgemäßen Pressfassung;
• 2: eine Schnittdarstellung durch eine erfindungsgemäße Pressfassung;
• 3: eine mit einem flexiblen Strang verbundene Pressfassung;
• 4: eine Schnittdarstellung durch eine mit einem flexiblen Strang verbundene Pressfassung;
• 5: eine Ausführungsform des Fußes weiterer Bauteile;
• 6A und 6B: bevorzugte Ausführungsformen des Fußes weiterer Bauteile;
• 7: eine mit einem flexiblen Strang verbundene Pressfassung, die ein weiteres Bauteil aufweist;
• 8: eine Schnittdarstellung durch eine erfindungsgemäße Pressfassung mit einem weiteren Bauteil;
• 9: eine Schnittdarstellung der Ausführungsform gemäß 5;
• 10: eine mit einem flexiblen Strang verbundene Pressfassung, die ein weiteres Bauteil aufweist;
• 11: eine mit einem flexiblen Strang verbundene Pressfassung, die ein weiteres Bauteil aufweist;
• 12: eine Schnittdarstellung der Ausführungsform gemäß 9;
• 13: eine mit einem flexiblen Strang verbundene Pressfassung zur Anbringung in einem Gehäuse;
• 14: das Anbringen eines flexiblen Stranges mit einer Pressfassung an einem Gehäuse;
• 15: eine mit einem flexiblen Strang verbundene Pressfassung, angebracht an einem Gehäuse;
• 16 bis 19: Sicherungsseile in verschiedenen Ausführungsformen.

Show it:

• 1 : the general view of a press socket according to the invention;
• 2 : a sectional view through a press mount according to the invention;
• 3 : a press fitting connected to a flexible strand;
• 4 : a sectional view through a press fitting connected to a flexible strand;
• 5 : an embodiment of the base of further components;
• 6A and 6B : preferred embodiments of the foot of further components;
• 7 : a press fitting connected to a flexible cord and having a further component;
• 8th : a sectional view through a press mount according to the invention with a further component;
• 9 : a sectional view of the embodiment according to FIG 5 ;
• 10 : a press fitting connected to a flexible cord and having a further component;
• 11 : a press fitting connected to a flexible cord and having a further component;
• 12 : a sectional view of the embodiment according to FIG 9 ;
• 13 : a press fitting connected to a flexible cord for mounting in a housing;
• 14 : attaching a flexible cord with a press fitting to a housing;
• 15 : a press fitting connected to a flexible cord, attached to a housing;
• 16 until 19 : Safety ropes in various designs.

1 Figure 12 illustrates the general view of a crimp socket 10 according to the invention into which a flexible strand 20 can be inserted from the proximal end 11 . A further component can be introduced into the distal opening 16 and pressed with the press socket 10 when it is attached to the flexible strand 20 . In the embodiment shown here, the press socket 10 also has an opening 12 for a fastening means 61, for example for fastening the press socket 10 to a housing 60 of a locking device 100.

2 shows a sectional view through a press fitting 10 according to the invention and a schematically illustrated flexible strand 20 corresponding to the embodiment shown in FIG form. In the sectional view, the internal structure of the press mount 10 can be seen in the form of a corrugation with, for example, four circumferential annular corrugations 13 . The corrugations 13 are designed in such a way that damage to the end of a flexible strand 20, such as the corrugations 13 cutting into the flexible strand, is avoided when the press mount 10 is pressed on. The corrugations 13 can also have barbs (not shown), which prevent the flexible strand 20 from slipping out of the press socket under high loads and which enable the form fit between the material of the flexible strand 20 and the press socket 10 to be subjected to pull-out forces of 10 kN and more , preferably withstands 15 kN and more, particularly preferably 20 kN and more.

3 shows schematically a press socket 10 connected to a flexible strand 20 with an optional opening 12 for receiving a fastener 61 for attaching the press socket to the housing 60, for example a locking device 100.

4 shows a sectional view through a press fitting 10 connected to a flexible strand 20 according to the embodiment in FIG 3 . In the sectional view, the inner structure of the press mount 10 can be seen in the form of a corrugation with, for example, four circumferential annular corrugations 13 .

5A shows an embodiment of a further component 30 in the form of an eyelet, in which the foot 31 has a shank 33, a groove 32 and an end region of the shank 34 at its proximal end, which is inserted into a press socket 10, the shank 33 and the end portion of the shaft 34 have the same diameter. This construction has the disadvantage that only insufficient strength of the connection between press mount 10 and the further component 30 could be achieved, ie with a large number of connections produced between press mount 10 and a further component 30 the mobility (wobbling) of the further component was 30 in the press version 10 too high, which led to high reject rates during production. The embodiment of the further component 30 shown here also has an opening 35 at the proximal end of the foot 31 for the introduction of a fastening means 61, such as a cylinder pin, for an additional fastening of the foot 31 of the further component 30 in the press socket 10.

6A shows an embodiment of a further component 30 in the form of an eyelet, wherein the foot 31 has a shank 33, a groove 32 and an end region of the shank 34 at its proximal end, which is inserted into a press socket 10, and the end region of the shank 34 has a larger diameter than the shank 33 by about 4 mm. The end portion of the shank 34 in this embodiment has a T-shape when viewed in cross-section or in plan side view. The deficiencies in relation to the insufficient strength of the connection between the press mount 10 and the further component 30 could be overcome with this embodiment of the foot 31, ie the further component 30 in the press mount 10 no longer wobbled. However, the resistance of this embodiment to pull-out forces, which the positive connection between the material of the flexible strand 20, the press fitting 10 and the further component 30 has to withstand, was too low. Because of frequently occurring breaks in the material of the end area of the shaft 34, only pull-out forces in the range of up to 10 kN could be withstood. The embodiment of the further component 30 shown here also has an opening 35 at the proximal end of the foot 31 for the introduction of a fastening means 61, such as a cylinder pin, for an additional fastening of the foot 31 of the further component 30 in the press socket 10.

6B 1 shows an embodiment of a further component 30 in the form of an eyelet, in which the foot 31 has a shank 33, a groove 32 and an end region of the shank 34 at its proximal end which is inserted into the press socket 10, the end region of the shank 34 has an approximately 4 mm larger diameter than the shaft 33. The end portion of the shank 34 in this embodiment has a B-shape when viewed in cross-section or in plan view from the side, ie the end portion of the shank 34 in B-shape faces the end portion of the shank 34 in T-shape in FIG 5B a material reinforcement. All deficiencies relating to the insufficient strength of the connection between the press mount 10 and the further component 30 and in relation to the lack of resistance to pull-out forces could be overcome with this embodiment of the foot 31, ie the further component 30 in the press mount 10 no longer wobbled on and through the material reinforcement at the end area of the foot shaft 34, fractures in this area of the foot 31 could be prevented. It was thus possible for the positive connection between the material of the flexible strand 20, the press fitting 10 and the further component 30 to withstand pull-out forces of around 16 kN. The embodiment of the further component 30 shown here also has an opening 35 at the proximal end of the foot 31 for the introduction of a fastening means 61, such as a cylinder pin, for an additional fastening of the foot 31 of the further component 30 in the press socket 10.

7 shows a press fitting 10 which is connected to a flexible strand 20 and which has a further component, here by way of example in the embodiment of an eyelet 30 .

8th shows a sectional view through a press fitting 10 according to the invention with an eyelet 30 as a further component. The eyelet 30 is molded in one piece and has a foot 31 with a groove 32 in the preferred embodiment of the B foot. The embodiment of the press socket 10 shown here has at the distal end 16 an inwardly directed, circular collar 14 . The collar 14 interacts with the groove 32 when the press fitting 10 is pressed with the flexible strand 20 and the eyelet 30, as a result of which the eyelet 30 is permanently connected to the press fitting 10. In the sectional view, the inner structure of the press mount 10 can be seen in the form of a corrugation with, for example, four circumferential annular corrugations 13 .

9 shows a sectional view shows a sectional view through a press mount 10 according to the invention with an eyelet 30 as a further component, pressed onto a flexible strand 20. The eyelet 30 is formed in one piece and has a foot 31 in the preferred embodiment of the B foot with a groove 32 . The embodiment of the press socket 10 shown here has at the distal end 16 an inwardly directed, circular collar 14 . The collar 14 interacts with the groove 32 when the press fitting 10 is pressed with the flexible strand 20 and the eyelet 30, as a result of which the eyelet 30 is permanently connected to the press fitting 10. In the sectional view, the inner structure of the press mount 10 can be seen in the form of a corrugation with, for example, four circumferential annular corrugations 13 .

10 FIG. 12 shows a press socket 10 connected to a flexible strand 20 and having another component, here in the form of a snap-in bolt.

11 shows a press socket 10 connected to a flexible strand 20, which has another component, here in the form of a mate bolt 50.

12 shows a sectional view of a press socket 10 connected to a flexible strand 20, which has a further component, here in the form of a mate bolt 50. The mate bolt 50 is formed in one piece and has a foot 31 in the preferred embodiment of the B foot a groove 32 on. The embodiment of the press socket 10 shown here has at the distal end 16 an inwardly directed, circular collar 14 . The collar 14 interacts with the groove 32 when the ferrule 10 is crimped to the flexible strand 20 and the mate pin 50 , thereby permanently connecting the mate pin 50 to the ferrule 10 . In the sectional view, the inner structure of the press mount 10 can be seen in the form of a corrugation with, for example, four circumferential annular corrugations 13 .

13 shows a press socket 10 connected to a flexible strand 20 for attachment in a housing 60, for example a locking device 100.

14 illustrates the attachment of a flexible strand 20 with a press socket 10 to a housing 60, the press socket 10 being inserted into a side opening of the housing 60 and by pressing a fastener 61 from above through the housing 60 into the opening 12 provided for this purpose (not to see) of the press socket 10 is permanently connected, since the opening 12 is deformed when the fastener 61 is pressed in. In the embodiment shown here, a cylinder pin is used as the fastening means 61 .

15 shows a press socket 10 connected to a flexible strand 20 and fastened to a housing 60 by means of a fastener 61 .

16 shows a safety rope 20 for securing transportable objects, each with an eyelet 30 and a press socket 10 at each end.

17 Figure 12 shows a lifeline 20 for securing transportable objects having an eyelet 30 and a press socket 10 at one end and a mate bolt 50 and press socket at the other end.

18 shows a safety rope 20 for securing transportable objects with an eyelet 30 and a press socket 10 at one end and a frame lock 101, which is attached to the safety rope 20 with a press socket 10, the press socket 10 also being surrounded by a protective cover.

19 Figure 12 shows details of various embodiments of bicycle locks having a safety line or cable 20 and a locking device 100 at one end ( 10A with L-shape lock and 10C with T-shape lock) and a latch bolt 40 at the other end, the latch bolt being fixed to the lifeline 20 with a press socket 10 .

Reference List

10

press version

11

proximal end of the press fitting

12

Opening for fasteners

13

corrugation, barbs

14

collar

15

protective sleeve

16

distal end of the press socket

20

flexible cord, lifeline, cable, rope

30

eyelet

31

Foot

32

groove

33

shaft

34

end of the shaft

35

Hole for fasteners, straight pin

40

locking bolt

50

mate bolt

60

Housing

61

fasteners, cylindrical pin

70

Protective cover for locking body

80

crush ring

81

Opening of the crush ring

82

outer edge of the opening of the crush ring

83

inner area of the opening of the crush ring

84

surveys

100

Closing device, integrated closure

101

frame lock

QUOTES INCLUDED IN DESCRIPTION

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

Patent Literature Cited

• WO 2011/103640 [0003]
• US2015/0132050 [0003]
• US4455717 [0004]
• US4157602 [0004]
• DE 9407461 U1 [0005]
• DE 9205945 U1 [0005]
• US5706679A [0006]
• WO 2019/115430 [0030]

Claims (26)

Arrangement for the attachment of components at the ends of a flexible strand (20), having a press socket (10) and a further component (30, 40, 50), wherein the component (30, 40, 50) has a foot (31) for insertion into the press socket (10), the foot (31) having a shank (33) and an end region of the shank (34) at the proximal end of the foot (31), the end region of the shank (34) of the foot (31) , when viewed in cross section or in top view of a side view, has a T-shape or a B-shape or a cross-sectional shape resulting therefrom. arrangement according to claim 1 , characterized in that the foot (31) of the further component (30, 40, 50) has a groove (32) into which a collar (14) of the press fitting (10) engages. arrangement according to claim 1 or 2 , wherein the press socket (10) is configured for clamping a blunt end of a flexible strand (20), characterized in that the press socket (10) has an internal structure in the form of a corrugation (13), the press socket (10) being set up for this purpose is that the press mount (10) deforms when force is applied from the outside and a form fit is produced between the material of the flexible strand (20) and the press mount (10). Arrangement according to one of the preceding claims, characterized in that the corrugation (13) of the press fitting (10) has 1-10, preferably 2-9 or 3-8, particularly preferably 4-7, 4-6 or 4-5 corrugations. Arrangement according to one of the preceding claims, characterized in that the corrugation (13) of the press fitting (10) has barbs. Arrangement according to one of the preceding claims, characterized in that the positive connection between the material of the flexible strand (20), the press fitting (10) and the further component (30, 40, 50) withstands pull-out forces of more than 15 kN. Arrangement according to one of the preceding claims, characterized in that the press fitting (10) consists of a metal, preferably selected from steel, stainless steel, copper or a metal alloy. Arrangement according to one of the preceding claims, characterized in that the press socket (10) also has an opening (12) for receiving a fastening means (61) for fastening the press socket (10) in a housing (60). Arrangement according to one of the preceding claims, characterized in that the press fitting (10) also has a circumferential collar (14). Flexible strand (20), characterized in that the flexible strand (20) has a press fitting (10) or an arrangement according to one of the preceding claims at at least one end. Flexible strand (20) after claim 10 , characterized in that the flexible strand (20) has a further component (30, 40, 50) at the end having the press fitting (10). Arrangement or flexible strand (20) according to one of the preceding claims, characterized in that the further component (30, 40, 50) is selected from an eyelet (30), a locking bolt (40) or a mate bolt (50). Arrangement or flexible strand (20) according to one of the preceding claims, characterized in that the further component (30, 40, 50) consists of a metal, preferably selected from steel, stainless steel, copper or a metal alloy. Flexible strand (20) according to any one of Claims 10 until 13 , characterized in that the flexible strand (20) contains metal fibers, plastic fiber material, natural fibers or a mixture of these fibers. Flexible strand (20) according to any one of Claims 10 until 14 characterized in that the flexible strand (20) is selected from a rope, cable, rope, safety line for transportable objects, a bicycle lock or the like. Safety cable (20) for mobile objects, having at a first end an arrangement or a press fitting (10) according to one of Claims 1 until 13 , wherein the press socket (10) is connected to a housing (60) by means of a fastening means (61); and further comprising at a second end an assembly or press fitting (10) according to any one of Claims 1 until 13 with a further component (30, 40, 50), wherein the further component (30, 40, 50) is pressed together with the end of the safety cable (20) by means of a foot (31) in the press socket (10). Safety rope (20) after Claim 16 , characterized in that the further component (30, 40, 50) is selected from an eyelet (30), a locking bolt (40) or a mate bolt (50). Safety rope (20) after Claim 17 , further comprising a locking device (100) or a frame lock (101). A method of making a connection between an end of a flexible strand (20) and an assembly or a press fitting (10) according to any one of Claims 1 until 13 , characterized in that the method comprises the steps of: • inserting the end of the flexible strand (20) into the proximal end (11) of the crimp socket (10); • Application of force from the outside, with the press socket (10) being deformed in such a way that the ribbing (13) of the press socket (10) engages in the material of the flexible strand (20) and a form fit between the material of the flexible strand (20) and the Press socket (10) is formed. procedure after claim 20 , characterized in that a force of 0.5 to 1.0 kN/cm ² is applied and that the diameter of the press socket (10) is reduced by about 3 to 8 mm. Procedure according to one of claims 19 or 20 , characterized in that in the production of a connection between a first end of a flexible strand (20) and an arrangement or a press socket (10) according to one of Claims 1 until 13 at the same time another component (30, 40, 50) is pressed in the press socket (10) by means of a foot (31). Procedure according to one of claims 19 until 21 , characterized in that the foot (31) of the further component (30, 40, 50) s has a groove (32) into which the collar (14) of the press mount (10) engages in such a way that a non-detachable connection between the further Component (30, 40, 50) and the flexible strand (20), wherein the foot (31) further comprises a shank (33) and an end portion of the shank (34) having a T-shape or a B-shape having. Procedure according to one of claims 19 until 22 , characterized in that the second end of a flexible strand (20) with an arrangement or a press fitting (10) according to any one of Claims 1 until 13 is connected, and that the second end of the flexible cord (20) is fixed to the press socket (10) in the sleeve (60) of a closure device (100). procedure after Claim 23 , characterized in that the second end of the flexible strand (20) with the press fitting (10) takes place in the sleeve (60) with a fastening means (61), preferably a bolt or cylindrical pin. procedure after Claim 24 , characterized in that the fastening means (61) is pressed into an opening (12) provided for this purpose in the press socket (10), the opening (12) deforming in such a way that the press socket (10) and the housing are permanently connected to one another. procedure after Claim 25 , characterized in that the housing (60) after the pressing in of the fastener (61) has a flat surface which has no points of attack for pulling out the bolt or cylinder pin (61).

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