EP1746061A1 - Belt termination device for attaching an elevator traction belt - Google Patents

Abstract

Bearing device connection (9) comprises an adhesive, welded or mechanical connection between the cable or cable strands of a bearing device (6) and the cable casing. Independent claims are also included for: (1) Lift installation comprising the above bearing device connection; and (2) Processes for fixing a bearing device in a lift installation. Preferred Features: The cable or cable strands are made of plastic fibers or a metallic material.

Description

The present invention relates to a suspension element end connection for fastening one end of a suspension element in an elevator installation, to an elevator installation with suspension element end connection and to a method for fastening one end of a suspension element in an elevator installation.

An elevator system usually consists of a car and a counterweight, which are moved in opposite directions in an elevator shaft. Cab and counterweight are connected and supported by means of suspension. One end of the suspension element is fastened with a Tragmittelendverbindung to the cabin, or at the counterweight or in the elevator shaft. The suspension element end connection accordingly has to transmit the force acting in the suspension element to the car or the counterweight or to the elevator shaft. It must be designed so that it can safely transmit a required load capacity of the suspension element.
Today more suspension means are used in which several ropes or rope strands are joined together to form a suspension. The support means consists of at least two spaced apart ropes or rope strands and a common cable sheath. The ropes or rope strands serve essentially to transmit carrying and movement forces, and the cable casing protects the cables, or the cable strands, from external influences and improves the transmission capability of drive forces which are introduced into the suspension elements by drive machines.

In known embodiments of Tragmittelendverbindungen the support means is held by a wedge in a wedge pocket.

Out WO 00/40497 is a Tragmittelendverbindung for an elastomeric sheath provided suspension means known. The elastomeric sheath envelopes and / or separates the individual ropes or rope strands and defines a force transmission surface to the prime mover. In this suspension element end connection, a wedge angle is to be selected such that the pressure load generated by the wedge, given a given length and width, on the suspension element causes smaller values than the permissible pressure loading of the elastomeric envelope.
In this embodiment, although a proposal for the introduction of force from the Tragmittelendverbindung made to the cable sheath of the support means, but not the transfer of the power from the sheath in the actually supporting rope, or rope strands is not solved. The coefficients of friction within a wire rope or a rope are in many cases less than from the cable sheath to the connecting parts. As a result, a wire rope or a rope is held only insufficiently within the cable sheath, whereby the permissible load capacity of the suspension element is limited.

Object of the present invention is to provide an optimized Tragmittelendverbindung, which maximizes the carrying capacity of the support means and safely transmits.
This has the advantage that a cost-effective elevator installation can be provided. The force transmission into the supporting ropes or rope strands can be ensured, the overall stresses in the suspension element can be optimized and a long service life of the suspension element can be achieved.
In addition, the suspension means end connection can be made resistant to elevated ambient temperatures and can be easily mounted.

The object is achieved by the invention according to the definition of claims 1, 10, 11 and 12. Advantageous developments are described in the dependent claims.

The invention relates to a suspension element end connection for fastening a suspension element end in an elevator installation and to a method for fastening a suspension element in an elevator installation according to the definition of the claims.
The elevator system consists of a car and a counterweight, which are moved in opposite directions in an elevator shaft. Cab and counterweight are connected and supported by means of suspension. The support means consists of at least one rope or rope strand and a cable sheath which encloses the rope or the rope strand. The rope or the rope strand is made of optionally impregnated synthetic fibers or of metallic material, preferably steel wires.
Several of these support means together form a suspension element strand.

One end of the suspension element is fastened to the car or counterweight or in the elevator shaft by means of a suspension element end connection. The suspension element is held in the suspension element end connection by means of a wedge which fixes the suspension element in a wedge pocket. The wedge-containing part of the Tragmittelendverbindung is formed by a wedge housing. The support means has at its unloaded end on a loose Trumm. This loose strand runs on a, inclined to the vertical direction, Keiltaschenhaftfläche and is there pressed by the wedge, by means of its wedge adhesion surface on the Keettaschenhaftfläche. The support means is further guided around a wedge arc and extends between a mutual Keilgleitfläche and the Keiltaschengleitfläche, which is oriented substantially vertically, or in the pulling direction of the support means to the supporting run of the support means. The support means wraps around the wedge. The tensile force of the suspension element is thus applied by a pressure along the wedge and wedge pocket surfaces and the wrap of the wedge. The support means is held by the wedge in the wedge pocket and the support means extends between the wedge and wedge pocket.
A tolerable tensile force of the suspension element is significantly influenced by the design of the contacting surfaces and the type of power flow from the Tragmittelendverbindung to the sheath and the ropes, or the rope strands.

According to the invention, the rope, or the rope strand, is adhesively bonded, fused or mechanically connected in the regions of the suspension element end connection to the cable sheath. The bonding, merging or mechanical connection of the rope, or the rope strands with each other and with the cable sheath causes no relative movement can take place within the suspension means. A frictional force which is transmitted from the surfaces of the key pocket or the wedge to the cable sheath, is forwarded directly into the load-bearing core of the suspension element, to the cables or rope strands. The sustainable tensile force in the suspension element is increased.

Bonding takes place, for example, by dropping or pouring a predefined amount of low-viscosity adhesive at the end of the suspension element into the individual ropes or cable strands. Due to the force of gravity and capillary action, the adhesive pulls in between the rope or rope strand and the sheathing and permanently bonds these parts. In the case of impregnated ropes or rope strands, the adhesive in particular also combines with the impregnating agent, for example polyurethane. The adhesive should have a sufficiently low surface tension. This bond forms a cost effective method for producing a Tragmittelendbefestigung.

A fusion can take place by means of a heat source from the outside, or via a source of ultrasound a selective fusion of the cladding material with the ropes, or the rope strands done. Particularly advantageous is a fusion when using similar materials such as polyurethane, in the Seillitzenimprägnierung and the coat.

A mechanical connection is made by, for example, a pin is inserted into the end of the rope or rope rope, which increase the local pressures. Particularly advantageous is the use of a wood screw, or one expiring in a Spitz Eindrehstiftes which (r) is screwed into one end of the support means, or its ropes or rope strands.

This version is particularly cost-optimal and the wood screw causes an increase in the sustainable pull-out force in two respects. On the one hand, the local pressure is increased and, on the other hand, the head of the wood screw is attached to the housing or the wedge in the event of slippage. This increases the sustainable pull-out force.

Another mechanical connection can also be achieved by a knotting or intertwining the ends of the rope strands, or ropes of the suspension element. This compound is preferably used for thin and correspondingly flexible cables or rope ends

Particularly advantageous solutions shown are used in ropes or rope strands made of synthetic fibers. Synthetic fibers generally have less favorable adhesive properties. Using the illustrated invention, a sustainable pull-out force can be increased. Preferably, the cable sheath consists essentially of thermoplastic or elastomer.

An advantageous embodiment provides that a wedge adhesion surface or Keiltaschenhaftfläche closer to the loose Trumm of the support means is provided with a Längskeilrille. This is particularly advantageous because under load of the support means resulting from the drawing of the wedge pressing force of the wedge on the wedge pocket in particular increases the possible retention force in the support means on the side of the Keiltaschenhaftfläche and the rope, or the rope seats with each other and with the cable sheath compresses - since this surface has Längskeilrillen -, whereby the max. possible Tragmittelkraft, as a result of the deflection around the wedge arch, increased. The power is continuously increased, as the increase in power is further built on the side of the loose Trumms. In addition, the key groove can be made over the arch of the wedge.

In another embodiment, the looseness of the support means closer Keettaschenhaftfläche and / or wedge adhesion surface is provided with a relation to the remaining surface of the wedge pocket, or the wedge increased roughness, or these surfaces are provided with transverse grooves or transverse grooves. This is advantageous because under load of the support means resulting from the pulling of the wedge pressing force of the wedge on the key pocket in particular the possible Load capacity in the support means on the side of the Keiltaschen- or wedge adhesive surface increases - since this surface has an increased roughness, or transverse grooves or transverse grooves -, resulting in the max. possible Tragmittelkraft, as a result of the deflection around the wedge arch, increased. The force is continuously increased, since the initial force is built on the side of the loose Trumms. The loose run of the suspension element is held securely and it can be transmitted a high load capacity. In addition, the Keiltaschengleitfläche on which the support member slides during the loading process, designed with a corresponding lower roughness, which counteracts damage to the suspension element, since its surface is not damaged. By means of this invention, a low-cost carrying means end connection with high load capacity can be provided.

Alternatively or additionally, a wedge sliding surface and / or wedge pocket sliding surface which is closer to the supporting run of the suspension element is provided with coefficient of friction reducing measures. Reibwertreduzierende measures are for example a sliding spray, an intermediate layer of lubricious plastic or a surface coating. This allows a sliding of the support means during the loading process which counteracts damage to the support means on the tensile side of the Tragmittelendverbindung because its surface is not injured and a load in the jacket and rope or rope rope is uniform. By means of this embodiment, a low-cost Tragmittelendverbindung can be provided with high load capacity.

In another embodiment variant, a wedge sliding surface or wedge slipper sliding surface closer to the supporting run of the suspension element has a first and a second surface area, wherein the first surface area is arranged at the zone of the outlet of the suspension element from the suspension end mounting and this first surface area has a larger wedge angle than the wedge sliding surface second surface area, which adjoins the first surface area and which forms the transition to a further surface area or to the upper end of the wedge pocket surface or the wedge surface. The first surface area moves away towards the outlet side wedge end increasingly from the corresponding counter surface. Advantageously, the transitions between the individual surface areas continuously executed. In an optimized embodiment, the surface regions are designed in such a way that a transition from the first to the nth surface region runs continuously, ie according to a transitional contour, wherein the nth surface region determines the main pressing region.

These solutions cause a continuous decrease in the pressure of the support means over a definable outlet path of the support means from the Tragmittelendverbindung. Advantageously, the first surface area extends over less than 50% of the total wedge or Keetaschengleitfläche. The suspension element undergoes no sudden load transitions. This increases the service life of the support system.

Further, the zugseilseitigen ends of the Keilgleitfläche and the Keiltaschengleitfläche are advantageously provided with radii or curved. The use of a radius or curved transitions causes a pressure of the suspension element to be gradually built up. There are no forced changes in tension forced and a sliding of the support means in the highly loaded tensile zone of the support means is made possible without damaging the support means.

Alternatively, the wedge is designed to be resilient at its wedge-shaped end. This leads to a slow reduction of the pressing force of the suspension element. Also by the suspension means undergoes no sudden load transitions. This increases the service life of the support system.

In a further embodiment, the wedge adhesion surface of the loose strand is connected to the wedge sliding surface of the supporting run at the upper end of the wedge by means of the wedge arc and this wedge arch connects tangentially to the two-sided wedge surfaces, in this further embodiment, the radius of curvature of the bow to the wedge adhesion surface of the loose strand gets smaller. A smaller radius of curvature causes a greater curvature of the support means and thereby indexed greater deformation stresses in the support means itself. At the same time decreases the tensile force acting in the suspension means, according to the Eytelwein'schen Umschlingungsgesetz from loose Trumm down, which causes decreasing tensile stresses in the suspension element. Increasing deformation stresses thus face decreasing tensile stresses and ideally compensate each other. This causes an optimization of the total stress in the suspension element and extends the life of the suspension element as a whole.

An advantageous Tragmittelendverbindung the type shown results in the use of a support means in the form of a multiple rope. The support means consists of at least two spaced apart ropes or rope strands and the cable sheath encloses the rope or Seillitzenverbund and he separates the individual ropes or rope strands from each other. The support means in this case has a longitudinal structure, preferably longitudinal grooves.

The longitudinal structure may be an image of a single rope, or a set of ropes or rope strands may be fitted in a longitudinal structure. The cable sheath can be specially profiled depending on the desired groove structure. Any execution of the wedge pocket or wedge is preferably aligned with the nature of the longitudinal structure. This allows the provision of a particularly inexpensive Tragmittelendverbindung.

Advantageously, in each case a rope, or Seillitzentrumm is clamped by means of an associated longitudinal wedge groove of the wedge, or the wedge pocket.

This allows a particularly good introduction of force of the suspension element force in the Tragmittelendverbindung.

In addition, one end of the illustrated suspension element or of the multiple rope is separated onto individual cable or rope trunks, and in each case a cable or cable core trump is clamped by means of an associated longitudinal wedge groove of the wedge or wedge pocket. The separation of the suspension element into individual rope or Seillitzentrumms can be done manually, for example by cutting or tearing or it can be done inevitably by a central web, which results from the formation of the longitudinal grooves on the wedge surface or Keiltaschenfläche.

Further advantageous embodiments are described in the further dependent claims.

Fig. 1:

eine Aufzugsanlage, mit Unterschlingung, mit im Aufzugsschacht befestigter Tragmittelendbefestigung.

Fig.2:

eine Aufzugsanlage, direkt aufgehängt, mit an einer Kabine, bzw. einem Gegengewicht befestigter Tragmittelendbefestigung.

Fig.3:

Beispiel einer Tragmittelendbefestigung welche an einer Kabine bzw. an einem Gegengewicht befestigt ist, mit nach oben wirkender Abzugskraft.

Fig. 4:

Beispiel einer Tragmittelendbefestigung welche im Schacht befestigt ist, mit nach unten wirkender Abzugskraft.

Fig. 5:

Beispiel eines Tragmittels mit beabstandeten Seilen

Fig. 6:

Beispiel eines Tragmittels mit beabstandeten Seillitzen Fig. 7: Beispiel einer Tragmittelendverbindung

Fig. 7a:

Einbringen von Klebstoff in ein Ende eines Tragmittels

Fig. 8:

Detail einer Tragmittelendbefestigung mit am Keil angeordneten Längskeilrillen und einem in Einzelstränge aufgeteilten riemenförmigen Tragmittel.

Fig. 8a:

Detail einer Tragmittelendbefestigung mit an einer Keiltasche angeordneten Längskeilrillen und einem in Einzelstränge aufgeteilten riemenförmigen Tragmittel.

Fig. 8c:

Detail einer Tragmittelendbefestigung mit an einer Keiltasche angeordneten Längskeilrillen und einem riemenförmigen Tragmittel mit geschmolzener Ummantelung.

Fig. 9:

Detail einer Tragmittelendbefestigung mit an einem Keil angeordneten Längskeilrillen und einem in Einzelstränge aufgeteilten Tragmittel.

Fig. 9a:

Detail einer Tragmittelendbefestigung mit an einer Keiltasche angeordneten Längskeilrillen und einem in Einzelstränge aufgeteilten Tragmittel.

Fig. 10:

Eine Tragmittelendverbindung mit mehreren Keilgleitflächenbereichen und einem mechanisch verbundenen Tragmittelende

Fig. 11:

Eine Tragmittelendverbindung mit Einlegeplatte

Fig. 12:

Einen Keil zu einer Tragmittelendverbindung mit federnd ausgeführtem Keilende und beschichteter Oberfläche sowie variablem Radius am Keilbogen.

In the following, the invention and further advantageous embodiments will be explained in detail with reference to exemplary embodiments according to FIGS. 1 to 12. Hereby show:

Fig. 1:

an elevator installation, with underlayment, with Tragmittelendbefestigung fastened in the elevator shaft.

Figure 2:

an elevator system, suspended directly, with attached to a car, or a counterweight Tragmittelendbefestigung.

Figure 3:

Example of a Tragmittelendbefestigung which is attached to a car or to a counterweight, with upward pull-off force.

4:

Example of Tragmittelendbefestigung which is mounted in the shaft, with downward pull-off force.

Fig. 5:

Example of a suspension with spaced ropes

Fig. 6:

Example of a Supporting Device with Spaced Wire Ropes Fig. 7: Example of a suspension element end connection

Fig. 7a:

Introducing adhesive into one end of a suspension element

Fig. 8:

Detail of a Tragmittelendbefestigung with arranged on the wedge Längskeilrillen and a divided into individual strands belt-shaped support means.

8a:

Detail of Tragmittelendbefestigung with arranged on a wedge pocket Längskeilrillen and a divided into individual strands belt-shaped support means.

8c:

Detail of a Tragmittelendbefestigung arranged on a wedge pocket Längskeilrillen and a belt-shaped support means with molten sheath.

Fig. 9:

Detail of a Tragmittelendbefestigung with arranged on a wedge Längskeilrillen and a divided into individual strands support means.

Fig. 9a:

Detail of Tragmittelendbefestigung arranged on a wedge pocket Längskeilrillen and a divided into individual strands support means.

Fig. 10:

A support means end connection having a plurality of Keilgleitflächenbereichen and a mechanically connected Tragmittelende

Fig. 11:

A Tragmittelendverbindung with insert plate

Fig. 12:

A wedge to a Tragmittelendverbindung with springy wedge end and coated surface and variable radius wedge arch.

An elevator installation 1 consists, as shown in FIGS. 1 and 2, of a cabin 3 and a counterweight 4, which are moved in opposite directions in a lift shaft 2, along guideways 5. Cabin 3 and counterweight 4 are connected to each other by means of support 6 and carried. One end of the suspension element 6 is fastened to the car 3, or counterweight 4, according to FIG. 2, or to the elevator shaft 2, according to FIG. 1, by means of a suspension element end connection 9. The location of the attachment depends on the embodiment of the elevator installation 1. FIG. 1 shows a 2: 1 suspended elevator installation and FIG. 2 shows a 1: 1 suspended elevator installation.

In Figs. 3 and 4 it can be seen how the support means 6 in the Tragmittelendverbindung 9 by means of a wedge 12, which fixes the support means in a wedge pocket 11 is held. The Tragmittelendbefestigung 9 may be mounted in different mounting position. In Fig. 3, the withdrawal direction is directed upward. In Fig. 4, the withdrawal direction is directed downwards as it is usually applied to a suspended elevator system according to Fig. 1.

Fig. 5 shows a support means 6 in the form of a "twin-ropes". In this case, individual strands 6c, which are made of synthetic fibers in the example shown, are stranded into a multi-layered cable 6a. The cable 6a is comprised of a thermoplastic or an elastomeric cable sheath 6b. An outer cable shroud 6d is in this case generally connected to the casing 6b areally. In order to obtain a flexible rope rope inner rings 6e are connected only by stranding. In the example shown, two such ropes 6a are arranged at a distance from each other and covered by a common cable sheath 6b.

Fig. 6 shows a support means 6 in the form of a V-ribbed belt in which a plurality of cable strands 6c are surrounded by a sheath 6b, wherein the V-ribs forms the required for generating a driving profiling. In each case a double strand of rope strands 6c are assigned in the example shown a rib.

Fig. 7 shows the basic structure of a Tragmittelendverbindung. One end of the suspension element 6 is fastened to the suspension element end connection 9 on the car or counterweight or in the elevator shaft. The support means 6 is held in the Tragmittelendverbindung 9 by means of a wedge 12 which fixes the support means 6 in a wedge pocket 11. The wedge pocket 11 containing part of Tragmittelendverbindung 9 is formed by a wedge housing 10. The support means 6 has a loose Trumm 7 at its unloaded end. This loose Trumm 7 runs on a tilted to the vertical direction Keettaschenhaftfläche 15 and is pressed there by the wedge 12, by means of its wedge adhesion surface 13.2, on the Keiltaschenhaftfläche 15. The support means 6 is further guided around a wedge arch 14 and extends between a mutual Keilgleitfläche 13.3 and a Keiltaschengleitfläche16, which is oriented vertically, or in the pulling direction of the support means 6, to the supporting run 8 of the support means 6. The tensile force of the support means 6 thus applied by the pressure along the wedge and wedge pocket surfaces 13.2, 13.3, 15, 16 and the wrap of the wedge arc 14. The support means 6 is held by means of the wedge 12 in the wedge pocket 11 and the support means 6 extends between wedge 12 and wedge pocket eleventh

A tolerable tensile force of the suspension element is thereby significantly influenced by the design of the contacting surfaces and the type of force flow from the Tragmittelendverbindung 9 for sheathing of the rope, or the rope strands.
The wedge housing 10 is connected in the example shown by means of a pull rod 17 to a connection point. In addition, the wedge 12 is secured by means of a captive 19 and cotter pin 20 against slipping out and the loose Trumm 7 is fixed by means of plastic trusses 23 to the supporting Trumm 8.
Fig. 7a illustrates a bonding process. A defined amount of liquid adhesive 26 is instilled into one end of the support means 6. The rope 6a or the rope strands 6c attract the liquid adhesive 26, essentially by capillary action. The instillation is repeated until a predetermined amount of the liquid adhesive is incorporated. This amount is usually determined experimentally on a pattern support means. Advantageously, the amount of adhesive is determined in such a way that a penetration length L results which covers the area of the wedge adhesion surface 13.2, the region of the wedge arc 14 and a part of the wedge sliding surface 13.3.

Figures 8, 8a, 8c, 9 and 9a show exemplary embodiments of the wedge pocket and wedge surfaces.
In Fig. 8, the key face 15, 16 of the housing 10 is made substantially smooth and the wedge surface 13.2, 13.3 is provided with Längskeilrillen. The Längskeilrillen are executed according to a profiling of the support means 6. The support means 6 is divided in this example in the areas of the longitudinal wedge grooves of the wedge 12 on individual suspension element strands 24. In the example shown, two rope strands 6c are each assigned to a suspension element strand. The support means 6 is excellently pressed by the groove pressing and a holding force can be transmitted through the jacket of the suspension element in the rope strands.
Fig. 8a shows a similar solution in which, however, the wedge pocket surface 15, 16 of the housing 10 is provided with Längskeilrillen and the wedge surface 13.2, 13.3 is made substantially smooth. The Längskeilrille is advantageously at the Keptaschenhaftfläche 15 arranged. This results in an optimum adhesion of the support means in loose Trumm 7 of the support means 6. Particularly advantageous proves in this solution, as shown in Fig. 8c that stranded strands 24 of the support means 6 can also be clamped when the cable sheath, for example due to fire, melts.
In Fig. 9, the key pocket surface 15, 16 of the housing 10 is made substantially smooth and the wedge surface 13.2, 13.3 is provided with Längskeilrillen. The Längskeilrillen are designed similar to the spline of a traction disc. The support means 6 is divided in the regions of the longitudinal wedge grooves of the wedge 12 on individual suspension element strands 24. In the example shown, a respective cable 6a is assigned to a single suspension element strand 24. The support means 6 is excellently pressed by the groove pressing and a holding force can be transmitted through the jacket of the suspension element in the rope strands.
9a shows a similar solution, in which, however, the wedge pocket surface 15, 16 of the housing 10 is provided with longitudinal wedge grooves and the wedge face 13.2, 13.3 is substantially smooth. The longitudinal wedge groove is advantageously arranged on the wedge pocket adhesion surface 15. This results in an optimum adhesion of the support means in loose Trumm 7 of the support means. 6

10 shows an example of an executed suspension element end connection 9. The suspension element 6 is divided at its end into individual suspension element strands 24 as shown in FIG. The rope is mechanically connected at its end, or at the end of the loose Trumms 7 using a screw 27, such as a wood screw, with the cable sheath. When screwing the screw 27 into the end of the suspension element strand 24 there is a bruising of the end fibers of the rope. As a result, the pressure force generated by the wedge 12 is increased and the power transmission from the cable core to the jacket is increased. In addition, the screw head prevents the support element from tearing out by being present on the wedge 12 or on the housing 10. This additionally increases the maximum sustainable tensile force in the suspension element.

The wedge 12 used in FIG. 10 also has a first surface region 13.1 and a second surface region 13.4 at the wedge sliding surface 13.3 closer to the supporting strand 8 of the suspension element 6, wherein the first surface region 13.1 at the zone of the outlet of the suspension element 6 from the Tragmittelendbefestigung 9, or is arranged to the outlet side wedge end and this first surface area 13.1 has a larger wedge angle α _K1 than the second surface area 13.4, which adjoins the first surface area 13.1 and which forms the upper end of the wedge surface 13.3 in this example. As a result, the first surface area 13.1 moves away from the associated counter-surface 16 increasingly towards the outlet-side wedge end. Of course, many configurations of this wedge shape are possible. Several or many partial areas can then be arranged next to each other or indefinitely small areas can be used, resulting in a continuous curve. Furthermore, the Tragmittelendverbindung shown a Verlierschutz 19 on the wedge 12 secures in the key pocket 11.
Alternatively or additionally, the wedge pocket sliding surface 16 has a first surface area 16.1 and a second area area 16.2, respectively. Here, too, the first area 16.1 is designed in such a way that it moves away from the corresponding wedge-sliding area towards the exit-side wedge end.

11 shows a Tragmittelendverbindung in which the Keiltaschenfläche 15 is carried out by means of an insert 25. This is advantageous because the housing 10 can be used for various support means 6 by only the insert part 25 is replaced. In the illustrated embodiment, the insert member 25 is provided with transverse grooves, which increase the adhesive force in the areas of the Keettaschenhaftfläche 15.

12 shows an advantageous embodiment of the wedge 12. The wedge 12 has a wedge core 12.2, which is made for example of steel. The wedge core 12.2 has at its lower end an incision 12.3. The notch 12.3 causes that the lower end portion of the wedge 12 is sprung. The lower region of the wedge surface 13.1 is thus made resilient and a pressure caused by the wedge decreases in the direction of the lower end of the wedge 12. The wedge core 12.2 has a coating 12.1 which defines the wedge surfaces and which with the support means 6 (in this Figure not shown) is in contact. The coating 12.1 is advantageously made of a lubricious plastic-like material. The coating 12.1 is shaped, for example, according to the need of the support means contour. The wedge arc 14 is, in the example shown, divided into several radii sections. In the example shown, a first radius section 14.1 adjoins the wedge adhesion surface 13.2. The radius section 14.1 has a small radius, which adjoins the wedge sliding surface towards an increasing radius section 14.2.

The examples shown are exemplary embodiments. The different versions can be combined. Thus, the insert plates 25 shown in FIG. 11 can be combined with wedge embodiments according to FIG. 10 or 12. The insert plate 25 may be coated. It can also be arranged on the side of the supporting strand 8. Of course, with knowledge of the present invention, the set shapes and arrangements can be changed arbitrarily. For example, the suspension element end connection can also be used in a horizontal installation position.

Claims (12)

Tragmittelendverbindung for mounting a suspension in an elevator system, wherein the support means (6) consists of a rope (6a) or rope strands (6c) and a cable sheath (6b), the cable sheath (6b) the rope (6a), or the rope strand (6 6c) encloses, the support means (6) by means of a wedge (12) in a wedge pocket (11) is held, the support means (6) between the wedge (12) and wedge pocket (11), wherein the support means (6) wraps around the wedge characterized,
that the cable (6a), or the wire rope (6c) in the region of Tragmittelendverbindung (9) with the cable sheath (6b) glued, fused or mechanically connected. Tragmittelendverbindung according to claim 1, characterized in that for bonding a low-viscosity adhesive is preferably used with low surface tension. Tragmittelendverbindung (9) according to claim 1, characterized in that a wedge adhesion surface (13.2) and / or wedge pocket adhesion surface (15) which is closer to a loose run (7) of the suspension element (6) is provided with a longitudinal key groove and / or - That the loose Trumm (7) of the support means (6) closer Keettaschenhaftfläche (15) and / or wedge adhesion surface (13.2) is provided with an over the remaining surface of the wedge pocket (11) increased surface roughness and / or in that the wedge pocket adhesion surface (15) and / or wedge adhesion surface (13.2) which is closer to the loose run (7) of the support means (6) is provided with transverse grooves or transverse grooves and / or - That a bearing Trumm (8) of the support means (6) closer Keilgleitfläche (13.3) and / or Keiltaschengleitfläche (16) is provided with reibwertreduzierenden measures. Tragmittelendverbindung according to one of the preceding claims, characterized - That the supporting Trumm (8) of the support means (6) closer Keilgleitfläche (13.3) and / or Keiltaschengleitfläche (16) has a first surface area (13.1, 16.1) and a second surface area (13.4, 16.2), wherein the first surface area (13.1, 16.1) increasingly towards the outlet side wedge end away from the associated mating surface (16.1, 13.1) and / or, - That the wedge (12) is designed to be resilient at its outlet end. Tragmittelendverbindung according to one of the preceding claims, characterized in that the wedge adhesion surface (13.2) of the loose Trumms (7) with the Keilgleitfläche (13.3) of the supporting Trumms (8) at the upper end of the wedge (12) by means of wedge arc (14) is connected, which tangential to the two-sided wedge surfaces (13.2,13.3) connects and the radius of curvature of the sheet (14) to the wedge adhesion surface (13.2) of the loose Trumms (7) decreases towards. Tragmittelendverbindung according to one of the preceding claims, characterized in that the support means (6) consists of at least two spaced apart ropes (6a) or rope strands (6c) and the cable sheath (6b) the individual cables (6a) or rope strands (6c) separates, wherein the support means (6) has a longitudinal structure, preferably longitudinal grooves. Tragmittelendverbindung according to one of the preceding claims, characterized in that individual cable, or Seillitzentrumms (24) by means of an associated longitudinal wedge groove of the wedge (12), or the wedge pockets (11) is clamped. Tragmittelendverbindung according to one of the preceding claims, characterized in that the mechanical connection of the rope (6a), or the rope strands (6c) with each other and with the cable sheath (6b) by means of a Pin (27), preferably a wood screw, takes place, which is screwed into one end of the rope (6 a) or the rope strand (6 c). Tragmittelendverbindung according to one of the preceding claims, characterized in that the cable (6a) or rope strand (6c) consists of synthetic fibers, or of metallic material. Elevator installation with a suspension element end connection (9) according to one of claims 1 to 8. Method for fastening a suspension element in an elevator installation, wherein the suspension element (6) consists of a cable (6a) or rope strands (6c) and a cable sheath (6b), the cable sheath (6b) the cable (6a) or the rope strand (6) 6c) encloses, the support means (6) by means of a wedge (12) in a wedge pocket (11) is held, the support means (6) between the wedge (12) and wedge pocket (11), wherein the support means (6) wraps around the wedge characterized,
that a predefined amount of liquid adhesive (26) is poured or cast into the rope (s) (24) at the end of the suspension element (6) and the rope (6a) or rope strand (6c) with each other and with the sheath (6b) be connected by means of liquid adhesive (26). Method for fastening a suspension element in an elevator installation, wherein the suspension element (6) consists of a cable (6a) or rope strands (6c) and a cable sheath (6b), the cable sheath (6b) the cable (6a) or the rope strand (6) 6c) encloses, the support means (6) by means of a wedge (12) in a wedge pocket (11) is held, the support means (6) between the wedge (12) and wedge pocket (11), wherein the support means (6) wraps around the wedge characterized,
that the cable (6a), or the wire rope (6c) in the region of Tragmittelendverbindung (9) with the cable sheath (6b) glued, fused or mechanically connected.

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