Belt clamping device for belts of belt-driven elevator systems

Abstract

The invention relates to a belt clamping device (10) for at least two belts (1; 1.1, 1.2, 1.3) of belt-driven elevator systems (100), comprising two plates (11, 12) and positive-locking / force-locking clamping means (13) for clamping the plates (11, 12) against each other. The plates (11, 12) each have at least one friction section (14) designed to bear against the belts (1). To provide a versatile and reliable aid for various maintenance situations, the belt clamping device (10) has a load-bearing eyelet (15) or similar fastening means on at least one of the plates (11, 12). It is dimensioned and designed for the simultaneous clamping and clamping of at least two adjacent belt sections (1a, 1b) of at least two belts (1) between the friction sections (14).This enables efficient handling of several belts (1) simultaneously, for example to secure a counterweight (102) or to couple with a chain hoist (103.1) of an extension device (103).

Description

TECHNICAL AREA

[0001] The present invention relates to a belt clamping device for at least two belts of belt-driven elevator systems, comprising two plates and positive-locking / force-locking clamping means for clamping the plates against each other, wherein the plates each have a static friction section configured for contact with at least one belt. Furthermore, the present invention relates to a method for securing, holding, or coupling belts by clamping belt sections of at least two belts of belt-driven elevator systems in at least one static friction section between two plates by clamping the plates against each other. Finally, the present invention also relates to the use of such a belt clamping device for clamping belts with a predefined pretension for the static friction clamping of belt sections, particularly in combination with the application of a coupling to the belt clamping device.The invention relates to a coupling chain hoist of an extension device. In particular, it relates to a device and a method according to the preamble of the respective independent claim. BACKGROUND OF THE INVENTION

[0002] Maintenance and repair work is also required for belt-driven elevator systems. For example, the drive and / or a braking device may need to be replaced. Such replacement or maintenance work may also be necessary for the suspensions and guides for the traction elements or belts. Overall, at least three different situations typically arise in which skilled workers require the use of tools: securing at least one counterweight, especially when a belt comes loose on one side; working with a pulling device to extract the car or the counterweight(s) from the catch; and working to adjust belt tension.

[0003] According to current technology, each of these situations requires a situation-specific approach, more or less improvised, possibly with the aid of various tools. Therefore, there is interest in improved equipment to be able to handle several of these situations safely and efficiently.

[0004] Currently, no tools or aids are known that can adequately and easily support work on the belt suspensions. For example, the counterweight in the pit must be placed on a suitable support and additionally secured against falling with a further safety measure before the driver's cabin can be lifted and the belts relieved of tension for further work.

[0005] As an example, publication DE 10 2024 118 449 A1 can be cited, which describes a so-called load-bearing connector with plate clamping elements for the friction-fit engagement of belt sections of a (single) belt acting as a load-bearing element in the drive train of an elevator system. The plate clamping elements can be clamped against each other using fasteners, e.g., screws, to relieve the load on the section of the load-bearing element supporting the car. Using such a load-bearing connector, two belt sections can be fixed against each other in an overlapping section, thus preventing any height adjustment. This eliminates the need for ceiling supports and / or dismantling measures, e.g., concerning track lining sheet metal structures, particularly during maintenance work at the shaft head.

[0006] Based on the current state of the art, there is a need for improved and simplified measures in connection with as many of the different situations of maintenance and repair work on belt-driven elevator systems as possible. Description - Technical Solution

[0007] The objective is to provide a device and method for clamping belts in elevator systems, enabling the coverage and safeguarding of as many different maintenance and repair situations as possible while maintaining good variability, safety, and efficiency. Furthermore, the objective is to design such devices and methods in such a way that they can be implemented and used as generally as possible, even with the specific belt drive configurations of individual systems.

[0008] This problem is solved by a belt clamping device according to claim 1, by a method according to the dependent method claim, and by uses according to the corresponding dependent use claims. Advantageous embodiments of the invention are explained in the respective dependent claims. The features of the exemplary embodiments described below can be combined with one another unless explicitly stated otherwise.

[0009] A belt clamping device for at least two belts of belt-driven elevator systems is provided, comprising two plates and form-fit / force-fit clamping means for clamping the plates against each other, wherein the plates each have at least one friction section designed to rest against at least one belt;

[0010] According to the invention, it is proposed that the belt clamping device has a load-bearing eyelet or similar load-bearing fastening element or fastening option on at least one of the plates and is dimensioned and configured for enclosing and tensioning at least two adjacent belt sections of at least two belts, which contact the plates between the static friction sections, i.e., in contact with the at least one static friction section of the respective plate. This provides a tool or aid by means of which several belts can be handled simultaneously in a simple, effective, and safe manner in different situations or for different purposes.The belt clamping device can be used for a single belt (especially two overlapping belt sections), two belts arranged side by side, or three or more belts arranged side by side. Thanks to the load-bearing eyelet, coupling with a chain hoist or similar traction device (different from the clamped belt(s)) is also possible in a simple and time-efficient manner. The width of the plates can be adapted to the number of drive belts in the belt drive, for example, to approximately match the width of the drive zone. In other words, the device can be used for various testing or inspection situations without requiring any modifications to the device itself or to the elevator system components.Consequently, a considerable degree of additional safety can be created for such testing and maintenance situations.

[0011] Personalized terms, unless explicitly formulated in the neuter gender, may refer to all genders within the context of this disclosure. Any foreign-language expressions or abbreviations used here are standard industry terms and are familiar to those skilled in the art. Any synonymous German terms used / available may be indicated here in parentheses for the sake of completeness, or vice versa.

[0012] The belt clamping device can be advantageously used for several purposes and tasks. In particular, belt clamping can be performed on the counterweight: When replacing the drive or service brake, when working on the rope suspension on the car, when replacing defective sensors (especially load sensors) or for their zero-point adjustment, when replacing pulleys on the car, or for similar measures, it may be necessary to release the belts from their fastenings on one side. Previously, the counterweight had to be secured in the pit in the elevator shaft using a support and a suitable secondary fall protection device, a process that was complex. In contrast, the belt clamping device according to the invention allows for easier and safer handling. It is proposed to press up to three belts against each other simultaneously and to hold the counterweight in place through static friction.It has been shown that the mutual frictional pressing action can be induced or realized so reliably that further securing measures are unnecessary. This also results in advantages such as time savings, simplified handling, and a minimized use of larger / heavier tools or equipment.

[0013] Furthermore, the belt clamping device described here can also be used to implement a one-sided belt clamp in conjunction with an extension device. During some inspections by approval authorities, unintended activation of the safety gear can occur, particularly in the upper shaft area near the car. In many situations, it is then impossible to pull the car out of the safety gear, especially since the drive power may be insufficient. For this situation, some elevator systems have a so-called extension device or...

[0014] The extension device is then used. It is proposed that the belt clamping device described here be used as an extension to the tools used in connection with an extension device. The belts can advantageously be clamped on one side on the counterweight side, and a chain hoist or similar pulling device (other than the drive belts) can be attached to at least one eyelet and thus coupled to at least one of the plates. Then the plate(s) along with the belt(s) are pulled downwards. During this process, the belts slide over the drive zones of the belt drive unit, and the passenger cabin is pulled upwards out of the catch.

[0015] Furthermore, the belt clamping device described here can also be used to implement a one-sided belt clamping system, similar to a belt tensioning device. After belt installation or replacement, it may be necessary to adjust the tension of all belts and check for uniformity. This is a time-consuming and complex procedure that, if performed incorrectly, can lead to malfunctions and system downtime. The belt clamping device described here can also be advantageously used as an aid in this context. It is suggested that the belt clamping device be installed on one side only. The belts can then be individually clamped. A chain hoist or similar traction device (different from the drive belts) can be attached to at least one eyelet.Now, the belts are pulled, and the tension on the plates is released evenly until all belts slip uniformly, i.e., a predefined level of sliding friction is present. This procedure is advantageously performed on both sides of the drive zone and with all belts simultaneously. Thanks to the belt clamping device, a significant time saving can be achieved with this procedure and application compared to previous methods; furthermore, no additional measuring equipment is required for belt tension. Therefore, even with new installations, a pre-existing, functional load measuring device is no longer necessary.

[0016] According to one embodiment, the belt clamping device is configured, in an unchanged design, to act or be used as a safety measure, preferably only temporarily required, or at least as an aid, preferably only temporarily required, in at least the following three situations or for the following three tasks: securing at least one counterweight, coupling an extension device of the elevator system to pull one or more of the elevator car or counterweights from the elevator system's catch, and adjusting belt tensions. This provides, not least, a high degree of variability and flexibility.

[0017] According to one embodiment, the load-bearing eyelet or similar load-bearing fastening element or a corresponding load-bearing fastening option is provided laterally on at least one of the plates, in particular at least approximately centrally in the transverse direction. This also facilitates a simple and robust coupling method, especially with a traction element (not a drive belt) of an extension device. Optionally, both plates can each be equipped with such a load-bearing eyelet, particularly in a mirror-image arrangement.

[0018] According to one embodiment, the load-bearing eyelet or similar load-bearing fastening element is movably mounted on at least one of the plates about at least one spatial axis, in particular tiltable about a tilting axis and / or pivotable about a pivot axis that is at least approximately horizontally oriented (where the pivot axis can correspond to the fastening axis formed on or defined by the respective plate). This also improves the method of coupling and force transmission, especially in conjunction with a traction element of a pull-out device.

[0019] According to one embodiment, the belt clamping device is configured to grip at least one of at least three belt sections of at least three belts, in particular all three belt sections arranged simultaneously side by side in the transverse direction, and to press the plates together in a frictional manner. This also facilitates an advantageous process, particularly in the context of checking or adjusting belt tension.

[0020] According to one embodiment, the plates are arranged to be clamped against each other at at least four, preferably at least six, and more preferably at least eight clamping points, in particular at eight clamping points designed as feedthroughs through which, for example, clamping screws can be guided, wherein the at least two belt sections of at least two belts, which are to be arranged side by side and which contact the plates, are advantageously arranged between at least two of the clamping points. This also facilitates the targeted adjustment of a static friction force, in particular metered depending on a preload (e.g., screw force) at the clamping points. In other words: Advantageously, each belt (or two overlapping belt sections) is pressed between laterally arranged clamping points (i.e., four clamping points).held in a frictional or, alternatively, a sliding frictional connection.

[0021] According to one embodiment, the plates define a plurality of clamping points, preferably at least eight, which are arranged in the transverse direction at at least three different locations, and between which at least two static friction sections are provided for contact by at least one belt each, particularly with the plates having a width / extent, when properly oriented in the transverse direction, that is greater than a factor of 3 of the belt width of one of the enclosed belts. Such a design offers the advantage, especially with two, three, or even more parallel belts, that individual belts can be enclosed and clamped in a specific manner, so that, for example, a specific static friction force can be generated for each belt, particularly for belt tension tests. This also facilitates an efficient procedure for tension testing of a particular belt.

[0022] According to one embodiment, the belt clamping device is designed to interact with at least one chain drive or similar traction element (other than a drive belt) via the load-bearing eyelet or similar load-bearing fastening element. This further expands the range of applications for the belt clamping device, particularly with regard to advantageous uses in combination with an extension mechanism of the elevator system.

[0023] The aforementioned problem is also solved by a method according to the corresponding dependent method claim, namely by a method for securing, holding, or coupling belts by clamping belt sections of at least two belts of belt-driven elevator systems in at least one static friction section between two plates by tensioning the plates against each other; wherein the method is carried out by means of a belt clamping device according to the present disclosure for at least two adjacent belt sections of at least two belts, in particular comprising the step of tensioning at least one of the belts with a first predefined pretension in a static friction section between the plates that is pretensioned specifically for the corresponding belt. This results in the aforementioned advantages.Alternatively, at least one more of the belts can be pre-tensioned with a second predefined pre-tension that differs from the first pre-tension.

[0024] According to one embodiment, the load-bearing eyelet or similar load-bearing fastening element of the belt clamping device is coupled to a chain hoist or similar pulling device of the elevator system. This facilitates a particularly efficient and safe procedure, also in connection with the use of an extension device of the elevator system.

[0025] The aforementioned problem is also solved by using a belt clamping device according to the present disclosure for the frictional clamping of belt sections of at least two adjacent belts simultaneously. This allows the aforementioned advantages to be realized.

[0026] The aforementioned problem is also solved by using a belt clamping device according to the present disclosure for clamping belts on one side on the counterweight side, wherein the load-bearing eyelet or similar load-bearing fastening element is coupled to a chain hoist or similar pulling element of an extension device of the elevator system. This allows the aforementioned advantages to be realized.

[0027] The aforementioned problem is also solved by using a belt clamping device according to the present disclosure for clamping individual belts with a predefined pretension, wherein the load-bearing eyelet or similar load-bearing fastening element of the belt clamping device is coupled to a chain hoist or similar pulling element of an extension device of an elevator system and placed under a predefined tensile load, in particular for the purpose of determining and adjusting the belt tension. This allows the aforementioned advantages to be realized.

[0028] It is understood that, based on the present disclosure, a person skilled in the art can conduct investigations and further developments to optimize the relative arrangement of the belt clamping device and the manner of enclosing and tensioning the belts or belt sections, in particular also experimental investigations and / or simulations regarding the achievable static and kinetic friction forces. In doing so, the person skilled in the art can also make use of common methods for computer-aided generation of action options and / or for computer-aided identification of optimization potential. Specifically within the scope of the present invention, a person skilled in the art is to be considered to be an engineer with several years of professional experience in the field of implementing belt-driven elevator systems.

[0029] Summary: Belt-driven elevator systems require different types of maintenance and repair measures, e.g. in connection with the drive and / or a braking device or with regard to suspensions and guides for the traction elements or belts.A belt clamping device for at least two belts of belt-driven elevator systems is provided, comprising two plates and positive-locking / force-locking clamping means for clamping the plates against each other, wherein each plate has a frictional section designed for contact with at least one belt; according to the invention, the belt clamping device has a load-bearing eyelet or similar load-bearing fastening means or load-bearing fastening option on at least one of the plates and is dimensioned and designed for enclosing and clamping at least two adjacent belt sections of at least two belts between the frictional sections, each contacting the plates. This also provides a tool or aid that can be used simply, effectively, and safely in various situations.It can be used for different purposes, especially for multiple belts simultaneously. Brief description of the drawings

[0030] The invention is described in more detail in the following drawings, whereby reference numerals not explicitly described in a particular drawing are made to the other drawings. They show: Fig. 1 in perspective side view a belt clamping device according to an embodiment; Fig. 2 in a perspective side view of an elevator shaft of an elevator system, a belt clamping device according to embodiments, which simultaneously encloses three belts arranged next to each other and presses their overlapping belt sections in pairs in a friction section provided for each belt between two plates; Fig. 3 in side view in schematic representation a belt clamping device according to embodiments in use on several belts of a belt drive of an elevator system in a situation according to a first of several possible uses; Fig. 4 in side view in schematic representation a belt clamping device according to exemplary embodiments in use on several belts of a belt drive of an elevator system on one side on the counterweight side in a situation according to a second of several possible uses; and Fig. 5 in side view in schematic representation a belt clamping device according to embodiments in use on individual belts of a belt drive of an elevator system in a situation according to a third possible use, namely in combination with an extension device. Detailed description of the drawings

[0031] The invention will first be explained with general reference to all reference numerals and figures. Specific features or individual aspects, or aspects of the present invention that are clearly visible / representable in the respective figure, will be addressed individually in connection with that figure.

[0032] A belt clamping device 10 for at least two belts 1; 1.1, 1.2, 1.3 of belt-driven elevator systems 100 is provided, comprising two plates 11, 12 and positive-locking clamping means 13 for clamping the plates against each other, wherein the plates 11, 12 each have at least one friction section 14 designed to contact at least one belt 1; wherein the belt clamping device 10 has a load-bearing eyelet 15 or the like on at least one of the plates 11, 12, and is dimensioned and designed to enclose and clamp at least two belt sections 1a, 1b of at least two belts 1; 1.1, 1.2, 1.3 arranged side by side and contacting the plates 11, 12 between the friction sections 14.

[0033] The belt-driven elevator system 100 comprises in particular the following components: at least one cabin 101, at least one counterweight 102, at least one belt drive 104 with, for example, a drive zone designed for two, three or more belts, optionally also an extension device or extension device 103.

[0034] The belt(s) 1 or the belt-like traction elements described here can be divided into several individual belts, each of which is guided over the drive zone of a belt drive, e.g. into a first belt 1.1, a second belt 1.2 and a third belt 1.3, and each belt can be divided into at least two different belt sections 1a, 1b, in particular into a downward-running belt section (which can function as a load side or slack side) and into an upward-running belt section 1b (which can also function as a load side or slack side, depending on the operating situation).

[0035] The belt clamping device 10 comprises a first plate 11 and a second plate 12, as well as a positive-locking / force-locking clamping element 13, e.g., in the form of screw connections including corresponding through-holes or bores in the plates. At least one static friction section 14 is provided on each plate, e.g., with a specific surface finish, in particular a surface structure or roughness / roughness, for a static friction effect or sliding friction effect as desired depending on the application.

[0036] At least one of the plates, advantageously both plates, has a load-bearing eyelet 15 or similar load-bearing fastening element or fastening device provided facing outwards, preferably centrally. Advantageously, the eyelet 15 is movable so that when the eyelet is coupled to a traction element other than a drive belt, the eyelet can align itself in the direction of the tensile force and ensure the most uniform possible transmission of the tensile force to the belts. Advantageously, the eyelet is movably mounted on the corresponding plate about a tilting axis 16 and also about a pivoting axis 17, the pivoting axis being the same as the mounting axis of the eyelet on the plate.

[0037] The following section explains special features of the invention with reference to individual figures or embodiments.

[0038] In Fig. Figure 1 shows the belt clamping device 10 in perspective side view to perspective top view; this embodiment of the belt clamping device 10 comprises four pairs of positive / positive locking clamping elements 13, each implemented here as a screw connection. The eyelet 15 is movably mounted about the tilting axis 16 and the pivoting axis 17 and is positioned at least approximately centrally on the plate 11. The second plate (12) is arranged behind the first plate 11 shown / visible here, i.e., in the view according to Figure 1. Fig. 1 is obscured, therefore the corresponding reference symbol is only indicated. The at least one static friction section 14 per plate is also in Fig. 1 merely schematically indicates a track or a specific arrangement of one of the belts between pairs of tensioning devices 13. The in Fig. The plate shown can optionally have three individual static friction sections 14, each located between the axes of the clamping devices 13, or alternatively, a single continuous static friction surface extending at least approximately across the entire width of the plate can be provided. The term "static friction section" does not preclude the use of the plates in the context of sliding friction, as has already been explained elsewhere with reference to so-called slippage (compare, for example, the use of the belt clamping device 10 according to the [reference to be added]). Fig. 5 described procedure).

[0039] In other words, the belt clamping device 10 can be provided, in particular, by two metal plates with holes for screws to clamp the belts, wherein, advantageously, individual friction sections for gripping one belt or two overlapping belt sections are provided or designed between one or more pairs of screws 13. Advantageously, the holes are located on the outer sides and between the individual belts to be clamped. A load-bearing eyelet movable about at least one spatial axis, in particular a tilting axis, is located on the outer side of at least one of the plates, preferably on each of the two clamping plates. The load-bearing eyelet only bears a load if another device or a tensioning element is coupled to it, e.g., the one described here in the context of the Fig. 4 described pull-out device.

[0040] In Fig. Figure 2 shows an arrangement of the belt clamping device 10 in which all drive belts for the corresponding driver's cab are simultaneously clamped and tensioned / pressed, e.g. for a procedure such as in connection with Fig. 3 described. In the Fig. In the embodiment shown, the eyelet described here is not yet attached to the plate, but can be retrofitted, e.g. screwed on, as soon as coupling with a traction device other than a belt drive traction device is desired / required.

[0041] In Fig. Figure 3 indicates components of a belt-driven elevator system 100, in particular the car 101, counterweight 102, and belt drive 104. The arrangement of the belt clamping device 10 shown serves in particular to secure or hold the counterweight. Fig. In addition, the spatial directions x, y, z (first transverse direction, second transverse direction, vertical direction) are indicated.

[0042] In Fig. Figure 4 also indicates the extension device 103 with chain drive 103.1 of the elevator system 100. The belt 1 is simply pressed, i.e., without two belt sections of the same belt overlapping in the friction section. The extension device 103 and an interacting chain drive 103.1, which can be coupled to at least one of the plates of the belt clamping device 10 via the eyelet (not shown in detail here), are shown in Fig. 4 is only indicated schematically. The cabin can be pulled upwards by means of the extension device 103, in particular out of a catch (not shown).

[0043] In Fig.Figure 5 shows a situation in which two belt clamping devices 10 can be used simultaneously. Each belt clamping device 10 is held upwards by a chain or similar counter bearing, and the belts are tensioned (downward tensile force). The pressing force or pretension applied by the respective belt clamping device 10 is then reduced uniformly, belt-specifically, until one of the belts slips.

[0044] In the drawing figures, the reference numbers 1a, 1b are used only as examples, without this being to be understood as restricting the current load state of the respective belt section in the situation shown. Reference symbol list 1 strap or strap-like pulling device 1a down belt section 1b upward-running strap section 1.1 first belt 1.2 second belt 1.3 third belt 10 Belt clamping device 11 first record 12 second record 13 positive / non-positive clamping devices 14. Friction section 15 load-bearing eyelets or the like 16 tipping axle 17 Swivel axis, mounting axis 100 belt-driven elevator systems 101 Driver's Cab 102 Counterweight 103 Extension device or pull-out device 103.1 Chain hoist 104 Belt drive x, y, z spatial directions QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2024 118 449 A1

[0005]

Claims

[1] Belt clamping device (10) for at least two belts (1; 1.1, 1.2, 1.3) of belt-driven elevator systems (100), comprising two plates (11, 12) and positive-locking clamping means (13) for clamping the plates against each other, wherein the plates (11, 12) each have at least one friction section (14) provided for contact with at least one belt (1); characterized by , that the belt clamping device (10) has a load-bearing eyelet (15) or similar load-bearing fastening means or load-bearing fastening option on at least one of the plates (11, 12) and is dimensioned and designed to enclose and clamp at least two belt sections (1a, 1b) of at least two belts (1; 1.1, 1.2, 1.3) arranged side by side and contacting the plates (11, 12) between the friction sections (14). [2] Belt clamping device according to claim 1, wherein the belt clamping device is configured to act or be used, in an unchanged design, at least in the following three situations or for the following three tasks as a safety measure preferably only to be used temporarily or at least as an aid preferably only required temporarily: securing at least one counterweight, coupling an extension device of the elevator system for pulling a car or a counterweight of the elevator system out of a catch of the elevator system, balancing belt tensions. [3] Belt clamping device according to claim 1 or 2, wherein the load-bearing eyelet or similar load-bearing fastening means or a corresponding load-bearing fastening option is provided laterally on at least one of the plates, in particular at least approximately centrally in the transverse direction. [4] Belt clamping device according to one of the preceding claims, wherein the load-bearing eyelet or similar load-bearing fastening means is movably mounted about at least one spatial axis on at least one of the plates, in particular tiltable about a tilting axis and / or pivotable about a pivoting axis that is at least approximately horizontally oriented. [5] Belt clamping device according to one of the preceding claims, wherein the belt clamping device is configured to enclose at least one of at least three belt sections of at least three belts, in particular all three belt sections arranged simultaneously next to each other in a transverse direction, and to press the plates between the plates in a frictional manner. [6] Belt clamping device according to one of the preceding claims, wherein the plates are arranged to be clamped against each other at at least four, preferably at least six, further preferably at least eight clamping points, in particular at eight clamping points designed as feedthroughs through which, for example, clamping screws can be guided, wherein the at least two belt sections of at least two belts to be arranged next to each other and contacting the plates are advantageously arranged between at least two of the clamping points. [7] Belt clamping device according to one of the preceding claims, wherein the plates define a plurality of clamping points, preferably at least eight, which are arranged in the transverse direction at at least three different locations, and between which at least two friction sections are provided for contact by at least one belt each, in particular with the plates having a width / extent when oriented as intended in the transverse direction which is greater than a factor of 3 of the belt width of one of the enclosed belts. [8] Belt clamping device according to one of the preceding claims, wherein the belt clamping device is configured to cooperate with at least one chain traction element or similar traction element other than a drive belt via the load-bearing eyelet or similar load-bearing fastening element. [9] Method for securing or holding or coupling belts (1; 1.1, 1.2, 1.3) by clamping belt sections (1a, 1b) of at least two belts (1; 1.1, 1.2, 1.3) of belt-driven lift installations (100) in at least one friction section (14) between two plates (11, 12) by clamping the plates against each other; characterized by , that the method is carried out by means of a belt clamping device (10) according to one of the preceding claims for at least two adjacent belt sections (1a, 1b) of at least two belts (1; 1.1, 1.2, 1.3), in particular comprising the step: tensioning at least one of the belts (1; 1.1, 1.2, 1.3) with a first predefined pretension in a belt-specific static friction section (14) between the plates (11, 12). [10] Method according to the preceding method claim, wherein the load-bearing eyelet or similar load-bearing fastening means of the belt clamping device is coupled to a chain hoist or similar pulling means of a / the elevator system. [11] Use of a belt clamping device (10) according to one of claims 1 to 8 for clamping belt sections (1a, 1b) of at least two belts (1; 1.1, 1.2, 1.3) mounted side by side by friction. [12] Use of a belt clamping device (10) according to any one of claims 1 to 8 for clamping belts (1; 1.1, 1.2, 1.3) on one side on the counterweight side of a lift system (100), wherein the load-bearing eyelet (15) or similar load-bearing fastening means is coupled to a chain hoist (103.1) or similar pulling means of an extension device (103) of the lift system. [13] Use of a belt clamping device (10) according to any one of claims 1 to 8 for clamping individual belts (1; 1.1, 1.2, 1.3) with a predefined pretension, wherein the load-bearing eyelet (15) or similar load-bearing fastening means of the belt clamping device (10) is coupled to a chain hoist (103.1) or similar pulling means of an extension device (103) of a / the elevator system (100) and is placed under a predefined tensile load, in particular for the purpose of determining and adjusting the belt tension.

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