CN111629985A

CN111629985A - Elevator rope support reel, elevator installation and method for realizing rope type compensation weight in prolonging climbing elevator

Info

Publication number: CN111629985A
Application number: CN201980009573.1A
Authority: CN
Inventors: 加布里埃勒·比佐杰罗; 简·布伦谢; 卢卡斯·克里斯蒂安; 斯特凡·韦伯
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2018-04-20
Filing date: 2019-04-18
Publication date: 2020-09-04
Anticipated expiration: 2039-04-18
Also published as: CN111629985B; WO2019202089A1

Abstract

The invention relates to an elevator rope support reel (1) which can be used in particular for realizing a rope-like compensation weight when extending an extendable elevator installation in the form of a climbing elevator. An elevator rope load-bearing spool (1) comprises a load-bearing spool (3) and an elevator rope (5) wound on the load-bearing spool (3). The carrier spool (3) also has a spool core (9) extending in the axial direction (7). Furthermore, the support bobbins (3) each have a smaller side delimiting part (11) extending in a plane transverse to the axial direction on the end of the bobbin core (9) opposite in the axial direction (7). Furthermore, the support bobbin (3) has, on the end of the bobbin core (9) opposite in the axial direction (7), and in relation to the smaller side delimitation piece (11), in the axial direction (7), for example further outwards, a larger side delimitation piece (13) extending in a plane transverse to the axial direction (7). The larger side dividing element (13) has a larger diameter (D2) than the smaller side dividing element (11). The larger side dividing element (13) is designed as a separable part on the elevator rope support spool (1). For extended climbing of the elevator, the previously used weight compensation chain (39) can be replaced by elevator ropes (5) serving as weight compensation ropes (31). Here, a first partial length of the weight compensating rope (31) can be unwound from the elevator rope carrying spool (1) and suspended to the elevator car (23) and counterweight (25). Then, after removal of the larger side delimiters (13), the elevator rope carrying spool (1) can be secured together with the part of the weight compensating rope (31) remaining on the elevator rope carrying spool, saving space, on the counterweight (25).

Description

Elevator rope support reel, elevator installation and method for realizing rope type compensation weight in prolonging climbing elevator

Technical Field

The invention relates to an elevator rope carrying spool on which an elevator rope is wound, for example in the form of a weight compensating rope. The invention also relates to an elevator installation having such an elevator rope carrier spool. The invention also relates to a method for realizing the rope type compensation weight when the climbing elevator is prolonged.

Background

In elevator installations, the elevator car and the counterweight are typically vertically movable within an elevator shaft. Both the elevator car and the counterweight are held by a common roped elevator support means. A "roped" elevator support means is understood here to mean a support means which is elongate and can be subjected to high loads in the direction of extension, but which can be bent transversely to the direction of extension. The roped elevator support means can have, for example, one or more support ropes or support belts. In the elevator installation there is also a drive means in order to move the elevator support means and in this way to move the elevator car and the counterweight in opposite directions in the elevator shaft.

Especially in elevator installations for very high buildings, the elevator support means must be very long, e.g. more than 200m long, in some cases up to 500m or more. The weight of the elevator support means, which on the one hand holds the counterweight and on the other hand the elevator car, is here usually of a similar magnitude or even greater than the weight of the counterweight or of the elevator car itself. The length and thus the weight of the overhang of the part of the elevator support means holding the counterweight or elevator car depends inter alia on where the two oppositely moving elevator components are currently located in the elevator shaft.

In order to compensate for the difference in weight between the part of the elevator support means holding the counterweight and the part of the elevator support means holding the elevator car, the compensating weight in rope form between the elevator car and the counterweight is usually suspended hanging downwards when the elevator installation is high. Such a compensating weight in the form of a rope can be, for example, a compensating chain or a compensating rope.

In the construction of higher buildings, so-called climbing elevators, sometimes also called climbing elevators (climblifts), can be used. Such climbing elevators can be extended in their transport length, i.e. in their lifting height, by: e.g. the platform on which the drive of the elevator is arranged is lifted to a higher level in the elevator shaft. In order to be able to serve all floors below the landing as far as possible, the length of the support means of the roped elevator must also be extended. This in turn makes it possible to extend the length of the rope compensation weight also when climbing an elevator.

In climbing elevators requiring a height difference typically in the range of up to about 175m ± 50m, rope-like compensation weights can mostly be implemented by means of a compensation chain. In order to extend the cabled compensation weight, such a compensation chain can be extended by means of the additionally suspended chain links. However, compensation chains having a length greater than typically about 200m cannot generally be used, particularly for strength reasons.

If climbing elevators require a larger height difference for the service, it is therefore mostly necessary to use a rope-like compensating weight in the form of a compensating rope. However, such compensating ropes cannot simply be supplemented in terms of their length, but must have been provided in advance with a length sufficient for the intended use thereof. In this case, the very long compensating ropes are usually supplied wound on an elevator rope carrier spool and then unwound from the elevator rope carrier spool for installation in the elevator installation.

It has been observed that handling elevator rope load-bearing spools having long compensating ropes wound thereon can be expensive. In particular, elevator rope load-bearing spools can be very large and/or very heavy. It has furthermore been observed that it may be difficult to provide such a compensating rope for an elevator installation, i.e. the compensating rope can be lengthened as required, especially in an elevator installation designed as a climbing elevator, and can thus "grow together" with the length of the climbing elevator.

Disclosure of Invention

Therefore, there is a need, above all, for an elevator rope support reel and an elevator installation equipped with such an elevator rope support reel, in which the compensating rope can be provided in an advantageous manner, i.e. for example with little space requirement and/or with a relatively small weight, and can be increased in its length if necessary. Furthermore, a method for realizing a rope compensation weight in the extension of an extendable climbing elevator would be required, in which method the length of the compensation rope can be extended in an advantageous manner as a rope compensation weight.

This need may be met by the subject-matter according to one of the independent claims. Advantageous embodiments are defined in the dependent claims and/or set forth in the following description.

According to a first aspect of the invention, an elevator rope load spool is presented having a load spool and an elevator rope wound on the load spool. The carrier spool has a spool core extending in the axial direction. Furthermore, the carrier spool has smaller side delimiters on the axially opposite ends of the spool core, respectively, which extend in a plane transverse to the axial direction. Furthermore, the carrier spool has, on the axially opposite ends of the spool core, in each case a larger side delimiting part extending in a plane transverse to the axial direction. The larger side dividing element has a larger diameter than the smaller side dividing element. In addition, the larger side demarcation is constructed as a separable part on the elevator rope support spool.

According to a second aspect of the invention, an elevator installation is proposed, which has: an elevator car; a counterweight; rope-type elevator support means acting not only on the elevator car but also on the counterweight; and a drive for moving the elevator support means and thus the elevator car and the counterweight in opposite directions. Additionally, the elevator installation has an elevator rope carrying spool according to an embodiment of the first aspect of the invention, which is fixed on the counterweight, and the wound elevator rope of the elevator rope carrying spool is suspended as weight compensating rope at least in part length hanging downwards between the elevator car and the counterweight.

According to a third aspect of the invention, a method is presented for achieving a rope-like compensation weight when extending an extendable climbing elevator. Before the lengthening, a weight compensation chain is suspended in a climbing elevator in a downward overhang between the elevator car and the counterweight. To lengthen the climbing elevator, the weight compensating chain is removed and replaced by weight compensating ropes. The weight compensating rope is pre-wound on an elevator rope load-bearing spool according to an embodiment of the first aspect of the invention. Here, a first partial length of the weight compensating rope, which is used instead of the weight compensating chain, is unwound from an elevator rope carrying spool and is suspended, hanging downwards on one side, on the elevator car and, on the other side, on the counterweight. In addition, the elevator rope load-bearing reel is fixed to the counterweight together with the remaining second partial length of the weight compensating rope wound on the load-bearing reel.

The possible features and advantages of embodiments of the present invention can be primarily, and not exclusively, considered as being based on the ideas and cognition described below.

As already indicated at the outset, particularly in the case of a need to extend a climbing elevator beyond a certain height, it is necessary or at least advantageous to replace the weight compensation chain by an elevator rope in the form of a weight compensation rope, wherein the weight compensation chain forms a rope-like compensation weight for the climbing elevator until then already suspended between the elevator car and the counterweight. The elevator ropes can be designed similarly to roped elevator load bearing mechanisms as desired but not mandatory. In particular, the elevator rope can be constructed as a round rope, a flat belt or the like. For example, the elevator rope can be constructed as a wire rope with a multi-strand core. The elevator ropes designed as weight compensating ropes may have a similar weight to a roped elevator load bearing mechanism for each elevator rope length, need to have, but not necessarily have, the same load bearing capacity.

Here, the elevator ropes used as weight compensating ropes may have at least one length corresponding to the weight compensating chain as a basic length. Furthermore, the elevator ropes can have a complementary length which is set such that the climbing elevator can be extended until the height of the originally available weight compensation chain is significantly exceeded and the elevator ropes can act here as a compensation weight.

The total length of the elevator rope, which is obtained from the sum of the basic length and the supplementary length, can be provided wound onto a support reel. The carrier spool can be constructed in its structure and/or function like a winch, cable drum or drum. In particular, the support reel can have a reel core extending in the axial direction, on the lateral surface of which the elevator rope can be wound, and on which side delimiters are provided at the ends opposite in the axial direction, by means of which the wound elevator rope is prevented from slipping laterally off the reel core.

The bobbin core can be designed rotationally symmetrically, in particular cylindrically, with respect to the axial direction, or such a lateral surface can be designed. Alternatively, the spool core can be formed, like in a winch, by a plurality of struts extending parallel to the axial direction, so that the elevator rope can then be wound in its entirety around said struts. The lateral surface of such a bobbin core consisting of struts can be understood virtually as the surface which is stretched between the struts.

The side dividers project transversely, in particular perpendicularly, to the bobbin core, i.e. in the radial direction, beyond the bobbin core. In other words, the side dividers have a larger diameter than the spool core. The side delimiting elements may be configured as disks, in particular circular disks. The side boundary pieces are here required, but not necessarily, to be designed as full-surface disks. The disk can be constructed in one piece, in two pieces or in multiple pieces. For example, the disc to form one of the side interface members may be composed of two half discs or a plurality of partial discs. Alternatively, the side delimiters may, for example, be configured with struts or spokes extending in the radial direction, which struts or spokes may be connected to one another by rings extending in the circumferential direction. The diameter of the side boundary piece is in this case to be understood as the dimension of the side boundary piece in the radial direction.

The elevator rope can be wound on the load-bearing reel in a plurality of turns, wherein further windings can be arranged side by side in a spiral shape and a plurality of windings can be arranged on top of each other in the radial direction of the load-bearing reel. In a coil structure as tight as possible, the windings may be arranged slightly offset from one another in the axial direction from the winding positions adjacent in the radial direction.

The elevator rope support spools on which the weight compensating ropes are wound with their total length are usually relatively large and heavy here, because the weight compensating ropes should compensate as much as possible for the weight difference adjusted in the elevator support means depending on the current position of the counterweight and elevator car relative to each other.

It can now be seen as advantageous if the elevator rope carrying spool not only has integral side delimiters between which the elevator rope is wound on the spool core, but alternatively at least two-part side delimiters are provided on each axially opposite end of the spool core. Each side interface element is formed in pairs from a smaller side interface element and a larger side interface element. In this case, one of the larger side dividers can be arranged in the axial direction directly next to the smaller side divider assigned to it in pairs or directly adjacent to the smaller side divider. Alternatively, the larger side boundary piece may be arranged slightly spaced apart from the associated smaller side boundary piece in the axial direction, wherein the gap between the larger and smaller side boundary pieces should be significantly smaller than the distance in the axial direction between two smaller side boundary pieces, i.e. the width of the gap should be, for example, less than 20% or less than 10%. As a further alternative, the larger side interface may also be connected to the smaller side interface in the radial direction, i.e. the larger side interface may have a recess in its centre in which the smaller side interface can be accommodated.

In this case, the two-part side interface should be designed such that, for example, smaller side interfaces which are located closer to the center of the spindle core in the axial direction have a smaller diameter than larger side interfaces which are located farther away from the center of the spindle core in this example. For example, according to one embodiment, the diameter of the larger side interface may be at least 10% larger, preferably at least 20% or at least 30% or at least 50% larger than the diameter of the smaller side interface.

More specifically, according to one embodiment, the elevator rope to be wound on the load-bearing spool has a total length consisting of a basic length and a supplemental length. In this case, the diameter of the larger side delimitation can be set in such a way that the larger side delimitation of the elevator rope carrying spool protrudes in the radial direction beyond the elevator rope wound with its total length as tightly as possible onto the spool core. Furthermore, the diameter of the smaller side demarcation element can be set in such a way that it projects in the radial direction beyond the elevator rope wound as tightly as possible onto the spool core only with its complementary length.

In other words, the dimensions of the larger side delimiters and the smaller side delimiters in the radial direction of the elevator rope carrying spool can be selected in such a way that such larger side delimiters project beyond the shell surface of the spool core in the radial direction to such an extent that, between the larger side delimiters, the elevator rope can be wound onto the spool core over the entire length of the elevator rope and then be delimited in the axial direction by the larger side delimiters. The larger side demarcation pieces thus prevent all of the windings of the entire elevator rope from slipping off the load-bearing spool in the axial direction. In contrast, the smaller side delimiting elements are of smaller diameter, i.e. they protrude to a lesser extent beyond the lateral surface of the spool core than the larger side delimiting elements. The diameter of the smaller side delimitation element should, however, be selected at least to such an extent that the smaller side delimitation element delimits the winding of the elevator rope at least laterally in the axial direction for a supplementary length of elevator rope corresponding to winding as tightly as possible onto the bobbin core. In other words, the smaller side demarcation should protrude beyond the shell surface of the spool core to a sufficient extent such that after a substantial length of the elevator rope is unwound from the elevator rope carrying spool, at least the remaining supplemental length of elevator rope still wound on the spool core is prevented from slipping axially off the spool core by the smaller side demarcation.

According to one embodiment, the basic length of the elevator rope can here be greater than 99m, preferably greater than 149m or 199m, and the complementary length of the elevator rope can be greater than 19m, preferably greater than 49 m. In particular elevator ropes having a basic length of e.g. 200m or more can be used instead of e.g. a weight compensating chain in a climbing elevator, after which a supplementary length of the elevator rope can be used to be able to correspondingly lengthen the weight compensating rope formed by the elevator rope upon further lengthening of the climbing elevator.

In an embodiment of the method according to the third aspect of the invention, which method can be used for achieving a rope-like compensation weight when climbing an elevator in an extended period, the proposed elevator rope load-bearing reel can be used as follows:

until the climbing elevator reaches a certain minimum height (e.g. 130m), the compensating chain is suspended downwards between the elevator car and the counterweight. The compensating chain can "grow together" as the height of the climbing elevator increases, as required, wherein the compensating chain is supplemented with further chain links.

If the climbing elevator needs to be extended beyond the above-mentioned minimum height, the weight-compensating chain is removed and replaced by weight-compensating ropes. Here, the weight compensating rope is wound with its total length onto the above-mentioned elevator rope carrying spool. The total length needs to be significantly longer than for a climbing elevator with only a minimum height, i.e. the wound elevator rope comprises a considerable amount (substentiell) of supplementary length in addition to the basic length. To replace the weight compensating chain, a first partial length of the weight compensating rope, which corresponds approximately to the basic length, is now first unwound from the elevator rope carrying spool. The part of the weight compensating rope is then mounted on the elevator car on one side and on the counterweight on the other side, so that the part of the weight compensating rope hangs down between the elevator car and the counterweight and can thus be used as a compensating weight. A second partial length of the weight compensating rope, which corresponds substantially to the supplemental length, is first retained on the elevator rope load spool.

In the partially unwound state, the elevator rope carrying spool is then fixed on the counterweight of the elevator installation together with the weight compensating rope wound thereon in the second partial length. During the subsequent run of the elevator installation, the elevator rope carrier spool is thus moved together with the counterweight through the elevator shaft.

In order to be able to more easily handle the elevator rope carrying spool and/or to be able to more easily fix the elevator rope carrying spool on the counterweight, the larger side delimiters of the elevator rope carrying spool can be removed before the elevator rope carrying spool is fixed on the counterweight. As a result, the elevator rope load-bearing spools become not only smaller but also lighter.

For this purpose, the larger side demarcation element is formed as a separable part on the elevator rope support spool. In other words, the larger side demarcation can be constructed in such a way that it can be separated from the rest of the elevator rope load bearing spool without damaging the rest. It may be particularly preferred that the larger side demarcation can be released from the rest of the elevator rope carrying spool without tools or with only simple tools, such as a screwdriver or wrench.

Particularly preferably, according to one embodiment of the invention, the larger side demarcation element is configured reversibly separable from the rest of the elevator rope support spool. In other words, the larger side demarcation can be mounted on the rest of the elevator rope carrying spool in such a way that it can be released without damage and, if necessary, can be mounted again on the rest of the elevator rope carrying spool at a later point in time. The elevator rope carrying spool can thus be designed, for example, to be reusable, so that after the elevator rope carrying spool has been used, for example in a climbing elevator, the larger side demarcation can be used again to be able to wind the elevator rope over its entire length after it has been installed again.

According to a preferred embodiment, the larger side interface is arranged further outwards in the axial direction with respect to the axial centre of the spool core than the smaller side interface. In other words, the larger side dividers can be arranged on opposite ends of the spool core in such a way that the larger side dividers accommodate the smaller side dividers between the larger side dividers in the axial direction. In this case, the larger side interface may be easily separated from the smaller side interface.

It is alternatively conceivable for the larger side delimiting element to be configured as a side delimiting element located inside in the axial direction. In this case, the larger side dividers are accommodated between the smaller side dividers in the axial direction. In order to be able to separate the larger side dividers, they can be designed in multiple parts, for example as two half discs which can be releasably connected to one another.

In a further alternative, the larger side dividers may extend in the same plane as the smaller side dividers, wherein the larger side dividers may each have a recess in which one of the smaller side dividers may each be received, so that the larger side divider is connected to the smaller side divider in the radial direction, for example flush. Also in this case, the larger side interface may be easily separated from the smaller side interface.

The described elevator rope carrier spool is therefore particularly suitable for use in elevator installations designed as climbing elevators. In such climbing elevators, the drive is vertically movably configured in the elevator shaft. For example, the drive can be lifted in the elevator shaft together with the platform supporting the drive and then fixed in a higher position to "grow" the climbing elevator.

Here, the climbing elevator can be further lengthened when it "grows out" of a certain height, the weight compensation chain is replaced by a weight compensation rope and the elevator rope carrying spool is fixed on the counterweight. According to one embodiment of the invention, in order to further extend the climbing elevator from the remaining second part length of the weight compensating rope wound on the elevator rope carrying spool in the manner described above, at least one part can be unwound in order to extend the first part length of the weight compensating rope suspended between the elevator car and the counterweight. The climbing elevator can thus be further "grown", i.e. lengthened in one or more steps over its height, and where the weight compensating rope is adjusted over its length as required, in such a way that: an additional partial length is unwound from the elevator rope load spool. If necessary, the thus reduced weight of the elevator rope carrying spool can be compensated on the counterweight by compensating the weight, i.e. e.g. by means of counterweight blocks placed in the counterweight.

According to one embodiment of the elevator installation according to the second aspect of the invention, the elevator rope carrying spools arranged above the counterweight can be fixed to the counterweight. Although it is in principle conceivable to mount the elevator rope support spools at any position on the counterweight. However, it is considered advantageous to arrange the elevator rope carrying spools above the counterweight and then to hang the weight compensating ropes down alongside the counterweight.

It should be noted that some possible features and advantages of the invention are described herein with reference to different embodiments relating to elevator rope load-bearing spools, to elevator installations and/or to methods for achieving rope compensation weights in extended climbing of elevators. Those skilled in the art will appreciate that these features can be combined, reversed, adapted or substituted in a suitable manner in order to realize other embodiments of the invention.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings, wherein neither the drawings nor the description should limit the invention.

Fig. 1 shows an elevator installation according to one embodiment of the invention in the form of a climbing elevator.

Fig. 2 shows a cross-sectional view of an elevator rope load bearing spool according to the present invention.

Fig. 3 shows an exploded cross-sectional view of an elevator rope load bearing spool according to the present invention.

Fig. 4 shows a side view of an elevator rope load bearing spool according to the present invention.

Fig. 5 shows a perspective view of a plurality of elevator rope load bearing spools according to the invention mounted on a counterweight.

The figures are merely schematic and not true to scale. The same reference numbers in different drawings identify the same or functionally similar features.

Detailed Description

Fig. 1 shows an embodiment of an elevator installation 21 according to the invention. The elevator installation 21 comprises an elevator car 23 and a counterweight 25, which are vertically movable inside an elevator shaft 33. The elevator car 23 and the counterweight 25 are held and also moved by means of a roped elevator support means 27. For this purpose, the elevator support means 27 can be driven by means of a drive 29.

The elevator installation 21 is designed as a climbing elevator 35. For this purpose, the drive 29 can be fixed together with the platform 51 at different heights in the elevator shaft 33 by means of a latch mechanism 53. In order to be able to serve floors lying at a lower level as a whole after such a movement of the drive 29 with the elevator installation 21, transport rollers 55 are additionally provided, on which a complementary length of the elevator support means 27 is wound, in order to be able to extend the length of the elevator support means 27 in the elevator shaft 33 by unwinding parts of the elevator support means 27 from the transport rollers 55.

Depending on the height of the elevator car 23 and correspondingly also the counterweight 25 in the elevator shaft 33, the two elevator components are held by parts of different length of the elevator support means 27. Especially when the elevator is very high, the deadweight of the elevator support means 27 or the unbalanced weight between the part of the elevator support means 27 holding the elevator car 23 and the part holding the counterweight 25 generates a considerable part of the load that needs to be moved by the drive 29.

In order to compensate for the above, a downwardly depending weight compensating chain 39 or downwardly depending weight compensating ropes 31 are arranged between the elevator car 23 and the counterweight 25, which weight compensating chain and weight compensating ropes constitute a compensating weight 37.

When the climbing elevator 35 is extended, the weight compensating chain 39 can be extended accordingly by suspending further chain links. However, starting from a certain length, or when the elevator car is to travel at more than a predetermined speed, e.g. more than 3m/s, the mechanical strength of the weight compensating chain 39 is no longer sufficient. If the climbing elevator 35 is to be extended further or run faster, the weight-compensating chain 39 is in this case removed and replaced by the weight-compensating rope 31.

Since the weight compensating ropes 31 cannot be extended easily in the case of a need for further extension of the climbing elevator 35, the weight compensating ropes 31 of fixed length will not simply be fixed with their ends to the elevator car 23 and counterweight 25, since then new weight compensating ropes 31 will have to be provided for use during each extension.

Instead, a weight compensating rope 31 is provided on the elevator rope load spool 1. Here, the total length of the weight compensating rope 31 wound on the elevator rope load-bearing spool 1 comprises a basic length, which substantially corresponds to the length of the maximum available weight compensating chain 39. Furthermore, the total length of the wound weight compensating rope 31 comprises a supplementary length, which should be selected to be long enough to be able to further lengthen the climbing elevator 35 by a desired amount.

Fig. 2 shows the elevator rope carrier spool 1 in cross-section. Fig. 3 and 4 show in exploded sectional view and side view the load carrying spool 3, which here accommodates an elevator rope 5 in the form of a weight compensation rope 31.

The elevator rope load spool 1 comprises a load spool 3 and elevator rope 5 wound on the load spool 3. The carrier bobbin 3 has a bobbin core 9 extending in the axial direction 7. The bobbin core 9 may be formed, for example, by a cylindrical body or by a plurality of struts 10 which are arranged parallel to the axial direction 7 and spaced apart from the central axis of the carrier bobbin 3. A plurality of turns of the elevator rope 5 are wound on the spool core 9.

In order to prevent the wound elevator rope 5 from slipping off the spool core 9 in the axial direction 7, the load-bearing spools 3 each have a side delimitation at the end opposite in the axial direction 7. Each side interface is designed in two parts and comprises a smaller side interface 11 and a larger side interface 13. In this example, the smaller side demarcation is closer to the center of the spool core 9 than the larger side demarcation 13, i.e. the smaller side demarcation 11 may be considered the inner side demarcation and the larger side demarcation 13 may be considered the outer side demarcation. The smaller side demarcation piece 11 may be fixedly or even integrally connected to the spool core 9. The larger side demarcation piece 13 is constructed as a separable part on the elevator rope support spool 1. In particular, the larger side delimiting element 13 may be arranged reversibly releasably on the smaller side delimiting element 11 and/or on the bobbin core 9, for example by means of bolts 41 or other technical means. The spool core 9, the smaller side boundary piece 11 and/or the larger side boundary piece 13 can be of proportionally simple construction and made of a material that is easy to machine, for example wood, plastic or metal. Furthermore, a fixedly screwed and preferably non-detachable screw 43 can be provided in the carrier spool 3.

The smaller side delimiting elements 11 have a diameter D1, the diameter D1 being greater than the diameter D of the bobbin core 9 (wherein the diameter D corresponds to the maximum distance between the struts 10 opposite in relation to the axial direction 7 for the case of a bobbin core 9 formed by the struts 10). The larger side interface member 13 has a significantly larger diameter D2 than the smaller side interface member 11.

In order to provide a weight compensating rope 31 for the elevator installation 21 and to replace it with, for example, the weight compensating chain 39 previously used therein, the compensating rope 31 is wound with its total length onto the load-bearing reel 3 of the elevator rope load-bearing reel 1. The larger side delimiting part 13 is set here with respect to its diameter D2 in such a way that: as long as the weight compensation ropes 31 are wound as tightly as possible, the entire weight compensation rope 31 has a space between the larger side delimiters 13.

Then, in place of the weight compensating chain 39, a basic length of weight compensating rope 31 corresponding to the length of the weight compensating chain 39 is unwound from the elevator rope carrying spool 1. Then, one end of the compensating rope 31 is fixed to the elevator car 23. The elevator rope carrying spool 1 is then fixed on the counterweight 25 together with the remaining complementary length of the compensating rope 31 wound thereon, so that the compensating rope 31 hangs down into the elevator shaft 33 between the counterweight 25 and the elevator car 23. In order to reduce the space requirement for the elevator rope support spools 1 or for a plurality of elevator rope support spools 1 to be provided, the larger side delimiters 13 can be detached from the respective elevator rope support spool 1 beforehand. Here, the remaining smaller side interface 11 has a diameter D1 which is sufficient for: after the unwinding of the basic length, the remaining portion of the weight compensation rope 31 on the load-bearing spool 3 can be accommodated between the smaller side delimiters and the weight compensation rope 31 can be prevented from slipping off in the axial direction 7.

If the climbing elevator 35 needs further elongation, a suitable partial length can be unwound from the supplementary length of the compensating ropes 31 in order to further lengthen the weight compensating ropes 31 extending between the counterweight 25 and the elevator car 23.

Fig. 5 shows a possible arrangement of how a plurality of elevator rope load bearing spools 1 are secured to a counterweight 25. The elevator rope support spools 1 are all arranged here above the counterweight 25 and are fixed to the counterweight 25 by means of support brackets 45. The threaded rod 47 extends vertically through the bearing bracket 45 and can be embedded at the upper end of the bearing bracket in a holder of a deflecting roller (not shown), by means of which the counterweight 25 is held on the elevator support means 27. The deflector plate 49 serves to deflect the weight compensating ropes 31 (not shown) extending downwardly from the respective elevator rope load spool 1 and prevent contact with the counterweight 25 which may be sharp edged.

Finally, it is pointed out that terms such as "having," "including," and the like do not exclude other elements or steps, and that terms such as "a" or "an" do not exclude a plurality. Furthermore, it should be pointed out that characteristics or steps which have been described with reference to one of the above embodiments can also be used in combination with other characteristics or steps of other embodiments described above. Reference signs in the claims shall not be construed as limiting.

List of reference numerals

1 Elevator rope load-bearing reel

3 load-bearing reel

5 Elevator rope

7 axial direction

8 radial direction

9 spool core

10 support post

11 minor side demarcation

13 larger side demarcation piece

21 Elevator installation

23 Elevator car

25 counter weight

27 rope elevator support means

29 drive device

31 weight compensating rope

33 Elevator shaft

35 climbing elevator

37 offset weight

39 weight compensation chain

41 bolt

43 screw rod

45 supporting frame

47 screw for steering wheel

49 turning plate

51 platform

53 latch mechanism

55 feed roller for elevator support means

diameter of d-axis core

D1 diameter of smaller side interface

D2 diameter of larger side interface

Claims

1. An elevator rope load-bearing spool (1) having:

a carrier spool (3), and

an elevator rope (5) wound on a load-bearing reel (3),

wherein the carrier spool (3) has a spool core (9) extending in an axial direction (7),

the carrier spool (3) also has smaller side delimiters (11) extending in planes transverse to the axial direction on the ends of the spool core (9) opposite in the axial direction (7),

the support spool (3) also has, on the ends of the spool core (9) opposite in the axial direction (7), in each case a larger side delimiting part (13) extending in a plane transverse to the axial direction (7),

the larger side boundary member (13) has a larger diameter (D2) than the smaller side boundary member (11), and

the larger side dividing element (13) is designed as a separable part on the elevator rope support spool (1).

2. The elevator rope load bearing spool of claim 1,

wherein the diameter (D2) of the larger side interface 13 is at least 10% larger than the diameter (D1) of the smaller side interface 11.

3. The elevator rope load bearing spool of any of the preceding claims,

wherein the elevator ropes (5) have a total length consisting of a basic length and a supplementary length,

the diameter (D2) of the larger side delimiting element (13) is set in the following manner: so that the larger side delimitation piece (13) protrudes in the radial direction (8) beyond the elevator rope (5) wound onto the spool core as tightly as possible over its total length, and

the diameter (D1) of the smaller side delimiting element (11) is set in the following manner: so that the smaller side delimitation pieces (11) project in the radial direction (8) beyond the elevator rope (5) wound as tightly as possible onto the axle core (9) only with its complementary length.

4. The elevator rope load bearing spool of claim 3,

wherein the basic length is greater than 99m, preferably greater than 149m, more preferably greater than 199m, and the supplementary length is greater than 19m, preferably greater than 49 m.

5. The elevator rope load bearing spool of any of the preceding claims,

wherein the larger side demarcation (13) is reversibly separable from the remainder of the elevator rope load bearing spool (1).

6. An elevator rope carrying spool according to any preceding claim, wherein the larger side demarcation (13) is arranged further outward in the axial direction (7) relative to the axial centre of the spool core (9) than the smaller side demarcation (11).

7. An elevator installation (21) having:

an elevator car (23);

a counterweight (25);

a rope-type elevator support means (27) which acts both on the elevator car (23) and on the counterweight (25);

a drive (29) for moving the elevator support means (27) and thus the elevator car (23) and the counterweight (25) in opposite directions;

elevator rope carrying spool (1) according to any one of claims 1-6, which is fixed on a counterweight (25), the wound elevator rope (5) of which is suspended as weight compensating rope (31) at least partially hanging down between the elevator car (23) and the counterweight (25).

8. The elevator installation according to claim 7,

wherein the elevator installation (21) is designed as a climbing elevator (35) and the drive (29) is designed to be vertically movable in an elevator shaft (33).

9. Elevator installation according to one of claims 7 and 8,

wherein an elevator rope-carrying spool (1) arranged above a counterweight (25) is fixed on the counterweight (25).

10. A method for realizing a rope-type compensation weight (37) in the extension of an extendable climbing elevator (35),

wherein in the climbing elevator (35), before extension, a weight compensating chain (39) is suspended downwardly between the elevator car (23) and the counterweight (25);

for extending the climbing elevator (35), the weight compensation chain (39) is removed and replaced by weight compensation ropes (31),

the weight compensation rope (31) being pre-wound on an elevator rope carrying spool (1) according to any of claims 1 to 6,

unwinding a first part of the length of weight compensating rope (31) for replacing a weight compensating chain (39) from an elevator rope carrying spool (1) and hanging down on the one hand on an elevator car (23) and on the other hand on a counterweight (25),

-fixing the elevator rope carrying spool (1) together with the remaining second part length of the weight compensating rope (31) wound thereon on a counterweight (25).

11. Method according to claim 10, wherein the larger side demarcation (13) of the elevator rope load-bearing spool (1) is removed before fixing the elevator rope load-bearing spool (1) on the counterweight (25).

12. Method according to any of claims 10 and 11, wherein, for further lengthening the climbing elevator (35), at least a part is unwound from the remaining second part of the length of the weight compensation rope (31) wound on the elevator rope carrying spool (1) in order to lengthen the first part of the length of the weight compensation rope (31) suspended between the elevator car (23) and the counterweight (25).