阅读说明：本技术 在电梯设备中使用的测量带结构以及用于安装和运行电梯设备的方法 (Measuring belt structure for use in an elevator installation and method for installing and operating an elevator installation ) 是由 加布里埃勒·比佐杰罗 卢卡斯·克里斯蒂安 于 2020-03-13 设计创作，主要内容包括：本发明涉及一种在电梯设备中使用的用于确定电梯轿厢沿行进路径的位置的测量带结构。测量带结构具有沿行进路径布置的单件式测量带(36),沿测量带(36)可变化的位置信息被存储,基于所述位置信息,能够确定相对于测量带(36)的当前位置,测量带结构还具有要布置在行进路径的上端上的保持结构(52),在所述保持结构上,测量带(36)借助固定装置(66)固定在相对于行进路径固定的位置上。根据本发明,用于接收测量带储器(80)的接收装置(78)设置在保持结构(52)上,测量带储器(80)的测量带分段(82)设置用于,在行进路径伸长时,以伸长段向上沿着伸长段延伸。本发明还涉及一种使用上述测量带结构的方法。(The invention relates to a measuring belt arrangement for use in an elevator installation for determining the position of an elevator car along a travel path. The measuring belt arrangement has a one-piece measuring belt (36) arranged along the travel path, position information which is variable along the measuring belt (36) is stored, on the basis of which position information a current position relative to the measuring belt (36) can be determined, and a holding arrangement (52) to be arranged at the upper end of the travel path, on which holding arrangement the measuring belt (36) is fixed in a fixed position relative to the travel path by means of a fixing device (66). According to the invention, a receiving device (78) for receiving a measuring tape storage (80) is arranged on the holding structure (52), and a measuring tape section (82) of the measuring tape storage (80) is arranged to extend along the length of the length upwards when the travel path is extended. The invention also relates to a method using the above-mentioned measuring tape structure.)

1. A measurement belt structure for use in an elevator installation (10) for determining a position of an elevator car (12) along a path of travel (16), comprising:

a one-piece measuring band (36) to be arranged along the travel path (16), position information varying along the measuring band (36) being stored, by means of which position information a current position relative to the measuring band (36) can be determined;

a holding structure (52) to be arranged at one end (53) of the travel path (16), on which holding structure the measuring tape (36) is fixed in a fixed position relative to the travel path (16) by means of a fixing device (66);

it is characterized in that the preparation method is characterized in that,

a receiving device (78) for receiving a measuring tape storage (80) is arranged on the holding structure (52), and a measuring tape section (82) of the measuring tape storage (80) is arranged to be arranged with an extension (58) upwards along the extension (58) when the travel path (16) is extended.

2. A measurement band structure according to claim 2,

it is characterized in that the preparation method is characterized in that,

a holding structure (52) is provided for arrangement on an upper end (53) of the travel path (16).

3. Measurement band structure according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the receiving device (78) has:

a mounting face (84) designed and arranged in the following way: such that the measuring tape reservoir (80) can be supported down on the rest face (84) and horizontally on the holding structure (52), and

a closeout face (86) designed and arranged to: such that the measurement tape reservoir (80) to be supported on the rest face (84) is at least partially arranged between the holding structure (52) and the run-out face (86).

4. A measurement band structure according to claim 3,

it is characterized in that the preparation method is characterized in that,

the receiving device (78) has two opposite side walls (88) which are designed and arranged such that: such that horizontal displacement of the measurement tape reservoir (80) along the holding structure (52) is limited.

5. A measurement band structure according to claim 4,

it is characterized in that the preparation method is characterized in that,

at least one of the side jaws (88) has a support surface (90) opposite the trailing surface (86).

6. Measurement band structure according to claim 4 or 5,

it is characterized in that the preparation method is characterized in that,

at least one of the side jaws (88) has a web (94) by means of which the receiving device (78) can be fastened to the holding structure (52).

7. Measurement band structure according to any one of claims 1 to 6,

it is characterized in that the preparation method is characterized in that,

the receiving device (78) is embodied in one piece.

8. Measurement band structure according to any one of claims 1 to 7,

it is characterized in that the preparation method is characterized in that,

the fixing device (66) is designed and arranged in the following manner: so that the measuring band (36) is clamped and thereby held.

9. A measurement band structure according to claim 8,

it is characterized in that the preparation method is characterized in that,

the fastening device (66) has a clamping plate (74), wherein the clamping plate (74) can be fastened to the holding structure (52) such that the measuring tape (36) is clamped between the clamping plate (74) and the holding structure (52).

10. A measurement band structure according to claim 9,

it is characterized in that the preparation method is characterized in that,

the clamping plate (74) has a flanging (76) at its upper and/or lower edge, which is directed away from the holding structure (52).

11. Measurement band structure according to one of the claims 1 to 10,

it is characterized in that the preparation method is characterized in that,

the holding structure (52) is provided for fastening to a guide rail (34) of the elevator installation (10).

12. A position determination system for use in an elevator installation (10) for determining the position of an elevator car (12) along a path of travel (16), the position determination system having a measuring belt construction (96) according to claims 1 to 11.

13. An elevator installation having a position determination system (98) according to claim 12 for determining the position of an elevator car (12) along a travel path (16).

14. A method for installing and operating an elevator installation (10) in an elevator shaft (14) of a building (18) in a construction stage, the method comprising at least the steps of:

introducing a measuring belt structure (96) according to any one of claims 1 to 10 into an elevator shaft (14), wherein,

arranging a holding structure (52) of a measuring band structure (96) on an upper end (53) of the lower travel path segment (16),

fixing the measuring tape (36) on the holding structure (52) by means of a fixing device (66), and

arranging a measurement tape reservoir (80) in the receiving device (78);

upwardly extending the path of travel (16) in an elongate section (58), wherein,

separating the measuring tape (36) from the holding structure (52),

arranging a measuring tape segment (82) of a measuring tape reservoir (80) along the elongate section (58),

arranging a holding structure (52) of a measuring band structure (96) on the upper end (60) of the elongate section (58), and

fixing the measuring tape (36) to the holding structure (52) by means of a fixing device (66);

the elevator car (12) of the elevator installation (14) is displaced along the lower travel path section (16) and the extension (58), wherein the position of the elevator car (12) is determined by means of the above-mentioned measuring belt arrangement (96).

Technical Field

The invention relates to a measuring belt arrangement for use in an elevator installation for determining the position of an elevator car along a travel path according to the preamble of claim 1, and to a method for installing and operating an elevator installation in an elevator shaft of a building in its construction phase having the features of claim 14.

Background

The elevator installation has at least one elevator car which is movable within the elevator shaft along a vertical travel path between different levels or floors. The elevator car is moved by a drive, which is controlled by a control unit. In order to be able to move the elevator car accurately and to be able to stop e.g. with its floor flush with the floor of the floor, information about the current position of the elevator car must be available to the control.

In order to be able to set such information, special measuring systems are usually not provided in the elevator installation. For example, EP1412274B1 describes an elevator installation with a measuring system for determining the absolute position of the car.

In a certain type of measuring system, a belt is arranged along the travel path of an elevator car. Different position information is stored on this band. For example, the strip can be designed as a magnet strip on which position information is stored as locally variable magnetization. A reading device can be provided on the elevator car, by means of which the position information can be read. The position information can then be evaluated and transmitted to the control of the elevator installation, so that the control can deduce a current position of the elevator car relative to the belt on the basis of the position information. Thus, the band is referred to herein as a measurement band.

In the previously unpublished international patent application with the applicant's application number PCT/EP2019/051045, a measuring belt arrangement for use in an elevator installation for determining the position of an elevator car along a travel path is presented, wherein the travel path is not changed after installation and initial commissioning of the elevator installation. The measuring band structure has a measuring band that needs to be arranged along the travel path, and positional information that is variable along the measuring band is stored, on the basis of which the current position relative to the measuring band can be determined. The measuring tape also has a holding structure arranged at the upper end of the travel path, on which holding structure the measuring tape is fixed in a fixed position relative to the travel path by means of a fixing device.

Disclosure of Invention

In contrast, the object of the invention is, in particular, to provide a measuring belt construction and a method for installing and operating an elevator installation, which can be used particularly advantageously in buildings in their construction phase. In particular, it should be possible to spend less time and/or cost in installing the measuring tape arrangement. According to the invention, this object is achieved by a measuring band structure having the features of claim 1 and a method having the features of claim 14.

The embodiments described below are equally related to measurement band structures and methods. In other words, the features described below, for example with respect to the measuring band structure, can also be implemented as method steps and vice versa.

The measuring belt arrangement used in an elevator installation for determining the position of an elevator car along a travel path according to the invention has a one-piece or one-piece measuring belt arranged along the travel path, wherein position information which varies along the measuring belt is stored, by means of which position information the current position relative to the measuring belt can be determined. The measuring tape also has a holding structure which is to be arranged at one end of the travel path and on which the measuring tape is fixed in a fixed position relative to the travel path by means of a fixing device. The holding structure is provided in particular for arrangement at the upper end of the travel path. According to the invention, a receiving device for receiving a measuring tape reservoir is arranged on the holding structure, wherein a measuring tape section of the measuring tape reservoir is provided for being arranged along the extension section upwards with the extension section when the travel path is extended.

For elevator installations used in buildings in their construction phase, the travel path of the elevator car is usually extended or lengthened gradually upwards. The installation and operation of the elevator installation need not wait until the building is completely finished. Instead, the elevator installation is installed and operated as soon as some floors of the building, including the elevator shaft of the elevator installation of these floors, have been completed. This means that the elevator installation can already be used for vertical transport of people and/or material during the construction phase of the building. In this way, the elevators provided in particular for the transport tasks in the construction phase can, for example, omit elevators installed outside the building in whole or in part.

The elevator installation is therefore installed first in the lowermost section of the elevator shaft, for example, the guide rails for guiding the elevator car and, if appropriate, the counterweight are fixed to the shaft wall, so that the lowermost travel path section is provided for the elevator car. In order to be able to operate the elevator installation, a measuring belt with (variable) position information is also arranged along the lowermost travel path in sections, on the basis of which measuring belt the current position of the elevator car can be determined. After the installation of the elevator installation of the lowermost section of the elevator shaft, the elevator installation can be run in the lowermost section of the elevator shaft, i.e. the elevator car can be displaced vertically along the lowermost travel path section.

The elevator installation can also be installed in a second section of the elevator shaft arranged above the lowermost section and then run as soon as the installation of the other section of the building and thus also the second section of the elevator shaft has been completed. For this purpose, the guide rails must be fixed in the second section of the elevator shaft, for example. The travel path of the elevator car is thus elongated upwards in an elongated section. In order to be able to move the elevator car along the elongation as well, a measuring belt is also arranged along the elongation. This lengthening of the travel path is repeated for a long time until the building is finished and the elevator shaft thus reaches its final height. Said installation of the elevator installation can be carried out, for example, using a method according to the applicant's previously unpublished international patent application with application number PCT/EP 2018/075347.

Since the measuring belt of the measuring belt arrangement is implemented in one piece or integral, i.e. consists of only one piece, the measuring belt must start from the starting point with a length that can cover the final height of the elevator shaft and the final length of the travel path of the elevator car. As long as the path of travel does not extend beyond its final length, there is a measurement band reservoir that is needed in the subsequent elongation of the path of travel. One measuring tape segment from the measuring tape reservoir is arranged along the elongation of the travel path upon each elongation of the travel path; therefore, the measurement tape reservoir becomes small each time the travel path is elongated.

The arrangement according to the invention of the receiving device for receiving the described measuring tape reservoir on the holding structure is such that: the measuring band reservoir can be supplied quickly and easily after the measuring band has been arranged along the current travel path and is maintained during subsequent operation of the elevator installation. If the travel path extends upward, the holding structure must also move upward, which is typically done by the assembler. By arranging the receiving means on the holding structure, the fitter can also in this case directly intervene in the measuring tape reservoir, which also makes the installation quick and simple. If the measuring tape is removed from the container, for example a cardboard box, the solution of storing the measuring tape reservoir on the holding structure has the additional advantage that only a small part of the measuring tape has to be removed from the container, so that a large part can be left in the container, thus protecting against damage.

The position information that can be varied along the measuring zone can be realized in particular as locally variable magnetization of the magnet strip, which magnetization is arranged in a so-called pseudo-random code. By detecting the pseudo random code, the position of the elevator car relative to the measuring belt can be unambiguously deduced. The information can also be designed as visual information, for example, like a bar code or a so-called two-dimensional code.

The measuring tape is suspended from the support structure by fixing means. The holding structure and the fastening device can also be designed as a common component. The component can be guided or held at its end opposite the fastening device in order to prevent the end from swinging or wobbling. In particular, a tensioning device, for example in the form of a tensioning counterweight, is arranged on the end in order to keep the measuring belt under a certain tension.

The holding structure is designed in particular as a rail which is fixed in the elevator shaft and is therefore arranged in a fixed or positionally fixed position relative to the travel path. The receiving means for receiving the measuring tape reservoir are for example screwed, riveted, welded or glued to the holding structure. The holding structure and the receiving device can also be designed as a common component.

In one embodiment of the invention, the receiving device has a mounting surface which is designed and arranged such that the measuring tape reservoir can be supported down on the mounting surface and horizontally on the holding structure. The holding structure also has a run-out surface which is designed and arranged such that the measuring tape reservoir supported on the rest surface is arranged at least partially between the holding structure and the run-out surface. This enables the measuring tape reservoir to be held securely, while the structure of the holding device is simple and therefore inexpensive.

The mounting surface is oriented in particular horizontally and the terminating surface is oriented in particular vertically. In addition, the terminating surface is in particular directly connected to the receiving surface. The maximum extent of the placement surface along the holding structure is in particular smaller than the maximum extent of the run-out surface along the holding structure, wherein the maximum extent of the run-out surface along the holding structure is in particular formed above the holding structure. The receiving device is arranged in particular on the holding structure such that the run-out surface is arranged between the holding structure and a shaft wall of the elevator shaft, on which the holding structure is fixed at least indirectly.

In one configuration of the invention, the receiving device has two opposite side walls which are designed and arranged such that a horizontal displacement of the measurement tape reservoir along the holding structure is limited. This enables a particularly reliable reception of the measurement band reservoir.

Side jaw prevents: the measuring tape reservoir can be moved horizontally along the holding structure without restriction, which may result in it leaving the receiving device and thus falling into the elevator shaft. The lateral jaws receive the trailing face, in particular, laterally adjacent thereto and are oriented, in particular, at right angles to the trailing face. The side jaws extend in particular from the run-out face in the direction of the holding structure and are in particular arranged only above the holding structure.

In particular, at least one side jaw, in particular both side jaws, each have a support surface opposite the run-out surface. The support surface is oriented in particular parallel to the run-out surface. In particular, the support surface is designed as a narrow strip in comparison with the run-out surface.

The support surface, the run-out surface and the side jaws with the support surface are arranged in particular in such a way that a container, in particular a carton, receiving the measuring tape reservoir can be received with a precise fit, i.e. can be held very reliably.

In one embodiment of the invention, at least one, in particular both, of the side jaws of the receiving device has a web by means of which the receiving device can be fastened to the holding structure. This enables a particularly simple and therefore inexpensive connection between the receiving device and the holding structure. In particular, the web has a through-opening, through which the web and thus also the receiving device can be screwed to the holding structure.

In one embodiment of the invention, the receiving device is embodied in one piece or in one piece. The receiving device can therefore be produced particularly inexpensively. The receiving device is in particular made of a metal sheet from which corresponding contours are stamped and then made into the desired shape by bending or folding.

In one embodiment of the invention, the fixing device is designed and arranged such that the measuring tape is clamped and thus held. It is thereby achieved that the measuring tape can be fixed to the holding structure in a simple and cost-effective manner, that the measuring tape is also easy to detach again and that no damage is caused to the measuring tape used for fixing. Damage to the measuring belt used for fixing must be prevented in particular, since when the travel path is extended, the measuring belt is also arranged in the extension and its position information is used to determine the current position of the elevator car.

In one embodiment of the invention, the fixing device has a clamping plate which can be fixed to the holding structure such that the measuring tape is clamped between the clamping plate and the holding structure. This is particularly effective in enabling the measuring tape to be fixed to the holding structure without damaging the measuring tape.

In particular, the clamping plate is screwed directly or indirectly onto the holding structure and the measuring tape is clamped between the clamping plate and the holding structure. The measuring band may also be clamped in particular between the clamping plate and an intermediate plate arranged between the clamping plate and the holding structure. In this case, the measuring tape is merely indirectly clamped between the clamping plate and the holding structure. In particular, the intermediate plate is also screwed onto the holding structure. The clamping plate and/or the intermediate plate have in particular a rubber coating. This is particularly effective in preventing damage to the measuring tape from being caught.

In one embodiment of the invention, the clamping plate has a flanging at its upper edge and/or at its lower edge, which is directed away from the holding structure. This effectively prevents the measuring tape from being damaged by the clamping plate even if the measuring tape vibrates. The cuff has an angle of, for example, between 45 ° and 80 ° with respect to the region of the clamping plate on which the measuring tape is placed.

In one embodiment of the invention, the holding structure is provided for fastening to a guide rail of an elevator installation. This makes it possible to secure the holding structure in a particularly simple manner, in particular without drilling into the shaft wall of the elevator shaft. The holding structure can be fixed on the guide rail, for example, by means of suitable clamping elements.

In this configuration, the receiving means are arranged in particular between the holding structure and the shaft wall, said guide rail being fixed at least indirectly to the shaft wall.

The described measuring band arrangement can be used particularly advantageously in a position determination system used in an elevator installation for determining the position of an elevator car along a travel path. Such a position determination system can be used particularly advantageously in an elevator installation.

The above object is also achieved by a method for installing and operating an elevator installation in an elevator shaft during the construction phase of a building, which method has at least the following steps:

the above-mentioned measuring belt construction is introduced into the elevator shaft, in which,

a holding structure for the measuring tape structure is arranged at the upper end of the lower travel path segment,

the measuring tape is fixed to the holding structure by means of a fixing device, and

-arranging the measurement tape reservoir in the receiving means;

the travel path is elongated upwardly in elongated segments, wherein,

the measuring tape is detached from the holding structure,

the measuring tape section of the measuring tape reservoir is arranged along the elongated section,

arranging a holding structure of the measuring tape structure at the upper end of the elongate section, an

The measuring tape is fixed to the holding structure by means of a fixing device.

After the travel path is elongated, the elongated section forms an upper travel path segment.

The steps mentioned are in particular carried out in the order specified, but can also be carried out in a different order. In addition to the steps mentioned, further steps are performed in particular, for example fixing the guide rails in the elevator shaft.

Before the travel path is extended, the elevator car, in particular of the elevator installation, is moved along the lower travel path in sections, wherein the position of the elevator car is determined by means of the above-mentioned measuring belt structure.

After the travel path has been extended, in particular the elevator car of the elevator installation is moved along the lower travel path section and the extension section, the position of the elevator car being determined by means of the aforementioned measuring belt construction.

If the measuring tape is fixed to the holding structure by the fixing device by clamping, in order to release the measuring tape from the holding structure, only the clamping is released and the fixing device is pushed up along the measuring tape without removing the measuring tape from the fixing device. This can effectively prevent: the measuring tape twists as the travel path is elongated. Thus, the loosening of the measuring tape from the holding structure is understood to mean: the holding structure may be displaced relative to the measuring tape after release.

The elongation of the travel path may be repeated. In particular, the elongation process is repeated until the travel path extends over the entire elevator shaft of the completed building. When last extended, the presented holding structure can be replaced by a holding structure provided for an elevator installation, the travel path of which after installation and initial start-up is no longer changed, for example by a holding device according to the international patent application with the applicant's application number PCT/EP 2019/051045.

When using the measuring band structure according to the invention and when carrying out the method according to the invention, the measuring band is mounted from bottom to top. Thus, one end of the measuring belt is arranged at the lower end of the travel path and thus at the lower end of the elevator shaft, and the measuring belt is then guided upwards. Thus, in the holding configuration as described, the measurement tape reservoir is located at the upper end for the path of travel. When the elevator installation is first commissioned, a so-called learning run is usually carried out. For this purpose, the elevator car is moved slowly to all floors to be served and the position of the car on the floor is detected and saved. After the above-mentioned position is saved, the elevator car can be automatically moved to the floor. The described installation of the measuring belt from the bottom up has the advantage that after the elongation of the travel path, the learning run performed in a section of the travel path does not have to be repeated, since the correspondence between the position information of the measuring belt and the position of the elevator car remains unchanged in this section of the travel path. This would not be the case if the measuring band reservoir were held at the lower end of the elevator shaft and the end of the measuring band at the upper end of the travel path would be displaced upwards when the travel path is extended.

It is noted that some possible features and advantages of the invention are described herein, on the one hand, with reference to different embodiments of the measurement band structure according to the invention and, on the other hand, with reference to the method according to the invention. Those skilled in the art will recognize that these features can be combined, modified, dedicated, or interchanged in a suitable manner to arrive at further embodiments of the invention.

Drawings

Further advantages, features and details of the invention emerge from the following description of an embodiment and the drawing, in which identical or functionally identical elements have the same reference numerals. The figures are merely schematic and are not drawn to scale.

Here:

figure 1 shows an elevator installation with a measuring belt construction,

figure 2 shows a perspective view of a holding structure with a receiving means for receiving a measuring tape reservoir and a fixing means for fixing a measuring tape,

fig. 3 shows the holding structure in fig. 2 with the receiving device and the fastening device in a top view, an

Fig. 4 shows the fixing device of fig. 2 and 3 in an enlarged view.

Detailed Description

According to fig. 1, an elevator installation 10 has an elevator car 12, which is vertically movable within an elevator shaft 14 along a travel path 16. For this purpose, the elevator car 12 and the counterweight 20 are connected to one another by a belt structure 22, which belt structure 22 is guided by a drive pulley 26 and a deflection pulley 28 driven by a drive machine 24. Operation of the drive machine 24 is controlled by a controller 30. The drive machine 24, the driven drive wheel 26, the deflection wheel 28 and the control device 30 are arranged on the holding platform 25. During its movement along travel path 16, elevator car 12 is guided by guide shoes 32 that move along vertically extending guide rails 34. The elevator shaft 14 is arranged in a building 18 still in the construction phase. Construction is still taking place over the illustrated section of building 18.

In order to be able to determine the exact position of the elevator car 12 along its travel path 16, a measuring belt 36, for example in the form of a magnet belt, is mounted in the elevator shaft 14. The measuring belt 36 extends substantially along and preferably parallel to the entire travel path 16 that needs to be traversed by the elevator car 12. For example, the measuring tape 36 may run on or parallel to one of the guide rails 34.

A reading device 38 is provided on the elevator car 12, by means of which variable position information stored in the measuring belt 36 can be read. In the case of the measuring tape 36 being designed as a magnet tape, the variable position information is stored as locally varying magnetization in the magnetizable material of the magnet tape. These local magnetizations can be read by means of a magnetic read head 40 of the reading device 38 and a read sensor device 42 suitably designed for this purpose.

As the elevator car 12 moves through the elevator shaft 14, a reading device 38, which is fixed, for example, by a fixed block 44 on top of the elevator car 12, moves along the measuring belt 36 under the guidance of guide rollers 46. The position information read by the reading device 38 can be transmitted to an evaluation device 48, in which the position information is evaluated or at least preprocessed in order to be able to then be transmitted to the control 30 of the elevator installation 10 via the cable connection 50 or wirelessly.

Based on the respective determined absolute position of the elevator car 12, the controller 30 can then appropriately control the drive machine 24 so as to be able to move the elevator car 12 precisely to the desired position.

In order to be able to fix the measuring belt 36 in a suitable manner in the elevator shaft 14, the measuring belt 36 is fixed to the holding structure 52 by means of a fixing device (66 in fig. 2 to 4) which is not shown in fig. 1. The holding structure 52 is fixed on the guide rails 34 at the upper end 53 of the travel path 16 and is therefore arranged in a stationary or immovable manner in the elevator shaft 14. A measurement tape reservoir (80 in fig. 2), not shown in fig. 1, is also arranged on the holding structure 52. The measurement band reservoir includes at least one measurement band (82 in FIG. 2) for stretching or otherwise extending the path of travel 16. The lower end of the measuring belt 36 can be fixed in the lower region of the elevator shaft 14, for example on the floor of the elevator shaft 14, or can be provided with a tensioning counterweight, not shown.

The elevator installation 10 is first installed and operated only in the lowermost section 54 of the elevator shaft 14. Thus, elevator car 12 moves along travel path 16, which may also be referred to as a lower travel path segment. The position of the elevator car 12 is determined from the position information from the measuring belt 36.

Above the lowermost section 54 of the elevator shaft 14, the building 18 as well as the elevator shaft 14 are still under construction. In order to protect the lowermost section of the elevator shaft, a so-called, not shown, protective platform may be provided in the elevator shaft, which protective platform protects the lowermost section of the elevator shaft from objects falling down.

Once the construction of another part of the building 18 and thus also the second section 56 of the elevator shaft 14 arranged above the lowermost section 54 is completed, the elevator installation 10 is also installed in the second section 56 of the elevator shaft 14. For this purpose, the holding platform 25 with drive machine 24, driven drive wheel 26, deflecting wheel 28 and control 30 is first moved upwards by a construction crane, not shown, and fixed in the elevator shaft 14. All necessary components of the elevator installation 10, such as the guide rails 34, are then also installed in the second section 56 of the elevator shaft 14. Thus, the travel path 16 of the elevator car 12 extends upwardly with an extension 58. In order to be able to determine the position of the elevator car 12 also along the extension 58, a measuring belt 36 is also arranged along the extension 58. To do so, the measurement tape 36 is first separated from the holding structure 52, and then the measurement tape (82 in FIG. 2) of the measurement tape reservoir (80 in FIG. 2) is disposed along the elongate section 58. Finally, the holding structure 52 is arranged on the upper end 60 of the extension 58, and the measuring band 36 is fixed to the holding structure 52 by means of a fixing device (66 in fig. 2 and 3).

The elevator installation 10 can also be put into operation in the second section 56 of the elevator shaft 14 when all necessary installations in the second section 56 have been completed. Elevator car 12 is movable along lower travel path segment 16 and extension 58. The position of the elevator car 12 is also determined based on position information from the measuring belt 36.

This lengthening of the travel path is repeated until the building is finished and the elevator shaft 14 thus reaches its final height.

In fig. 2 and 3, a retaining structure 52 is shown with all components disposed thereon. The holding structure 52 is designed as an elongated rail which is fixed to the rail 34 by means of a clamping device 62. The holding structure 52 is arranged such that it rests against the rail foot 64 of the guide rail 34, i.e. e.g. between the guide rail 34 and the wall of the shaft to which the guide rail 34 of the elevator shaft 14 is fixed. A fastening device 66, shown enlarged in fig. 4, is arranged on the end of the holding structure 52 opposite the guide rail 23, by means of which the measuring tape 36 can be fastened to the holding structure 52. The fastening device 66 consists of an intermediate plate 68 which is fastened to the holding structure 52 by means of two bolt-and-nut connections 70 and a clamping plate 74 which has four further bolt-and-nut connections 72 and is fastened to the holding structure 52. The measuring tape 36 extends between the intermediate plate 68 and the clamping plate 74, said measuring tape 36 thereby being fixedly clamped between the clamping plate 74 and the intermediate plate 68. Since the intermediate plate 68 is fixed to the holding structure 52, the measuring tape 36 is at least indirectly clamped between the clamping plate 74 and the holding structure 52. The clamping plate 74 has a respective flange 76 at its upper and lower edge, which flange faces away from the retaining structure 52. The intermediate plate 68 and the clamping plate 74 may be provided with a rubber coating at least on their side facing the measuring tape 36.

A receiving device 78 for receiving a measuring tape reservoir 80, symbolically indicated as a circle, is also arranged on the holding structure 52. The measurement tape reservoir 80 includes a measurement tape segment 82, the measurement tape segment 82 being disposed along the elongate segment 58 when the path of travel 16 is extended. The receiving device 78 is embodied in one piece or in one piece. The receiving means has a horizontally extending rest surface 84 arranged below the holding structure 52. Thus, the measuring tape reservoir 80 can be supported down on the rest face 84 and on the holding structure 52 in a direction horizontally along the guide rail 34.

The receiving device 78 also has a run-out surface 86, which run at right angles to the placement surface 84 and which run mainly parallel to the holding structure 52 and is arranged at a distance from the holding structure 52. Here, the run-out faces upwardly from the retaining structure 52. In this case, the maximum extent of the run-out surface 86 in the region of the placement surface 84 along the holding structure 52 is smaller than the maximum extent of the run-out surface 86 above the supporting structure 52. Thus, the measurement tape reservoir 80 supported on the support structure 84 is partially disposed between the support structure 52 and the closeout face 86.

The receiving device 78 is terminated laterally by two opposite lateral jaws 88 which are connected to the terminating surface 86 and extend at right angles thereto and which delimit the amount of horizontal displacement of the measurement band magazine 80 along the holding structure 52. In addition, the two side jaws 88 each have a support surface 90 opposite the end surface 86, so that the receiving surface 90 and the side jaws 88 are also at right angles to one another. Furthermore, the two side jaws 88 each also have a web 94, and the side jaws 88 and thus also the receiving device 78 are screwed onto the holding structure 52 via the webs 94 and are thus fixed thereto. For this purpose, the tabs 94 each have a through-hole, not shown, through which a bolt can be inserted in order to screw onto the retaining structure 52.

The rest plane 84, the run-out plane 86 and the side jaws 88 with the rest plane 90 are arranged such that the containers, in particular the cartons 92, receiving the measuring tape reservoirs 80 can be received with an exact fit.

The measuring band 36, the holding structure 52, the fixing means 66 and the receiving means 78 together form a measuring band structure 96. The measuring band arrangement 96, the reading device 38 and the evaluation device 48 together form a position determination system 98 (see fig. 1).

Finally, it is noted that terms such as "having," "including," and the like do not exclude any 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.