Arrangement and method for building elevator

Abstract

The invention relates to a method for building an elevator, comprising: providing a protective cover (1) in a first position in a hoistway (2), the protective cover (1) dividing the hoistway (2) into a lower part (P1) and an upper part (P2); and providing in the hoistway (2) an elevator car (3) and a counterweight (4), which are connected to each other by a lifting cable (5) and are vertically movable in the hoistway (2) below the protective cover (1), the car (3) being movable flush with the plurality of pallets (L) for loading and / or unloading the car; and blocking movement of the counterweight (4) beyond a first limit distance (D1) below the limit position by at least one counterweight buffer (6) when the car (3) is in its upper limit position, in which the car (3) is flush with the uppermost one of the plurality of floors (L, Lu), and blocking movement of the counterweight (4) beyond the first limit distance (D1) below the limit position by means of the at least one counterweight buffer (6) when the car (3) is in its upper limit position, in which the car (3) is flush with the uppermost one of the plurality of floors (L, Lu); and moving the elevator car (3) in the lower portion (P1) of the hoistway (2) for transporting passengers and / or goods; and performing the construction work in the upper portion (P2) of the hoistway (2). According to the invention, the first limit distance (D1) is less than 1.0 m and the height of the car interior (I) is greater than 2.5 m, and the protective cover (1) is at least partially lower than the horizontal plane of the lower edge (e1) of the opening (O) of the landing (Lu + 1) immediately above the uppermost landing (Lu). The invention also relates to an elevator device implementing the method.

Description

Technical Field

[0001] The present invention relates to an apparatus and a method for building an elevator. The elevator is preferably an elevator for transporting passengers and / or goods. Background Art

[0002] Such construction time elevators are known, also referred to below as mezzanine elevators, in which the bottom part of the elevator shaft has been put into use while the upper part of the building and the shaft are still under construction or even do not exist. In such projects, the upper part of the building and the top part of the elevator shaft can be built at the same time, because the elevator moving in the bottom part of the elevator shaft already serves people on the lower floor of the building under construction. Typically, in mezzanine elevators, during construction time use, the elevator car moving in the lower part of the elevator shaft is supported and moved by a hoist supported on a machine room that can move vertically in the elevator shaft. Such mezzanine elevators are also known, in which the hoist is supported on guide rails.

[0003] In an elevator installation as described above, the construction of the upper part of the elevator shaft and the placement of elevator components in the shaft can be a safety risk for people and elevator components. Objects such as placement tools or construction parts can fall from the upper part of the shaft and hit and damage people or elevator components located in the lower part of the shaft.

[0004] In order to protect the lower part of the shaft, it is known to use a protective cover in the shaft, which substantially completely covers the cross section of the shaft and is able to block falling objects. The protective cover divides the shaft into a lower part and an upper part. The elevator car can be safely operated and serviced in the lower part below the protective cover, while construction work can be safely performed in the upper part above the protective cover. For example, different protective structures have been disclosed in the prior art documents WO2010010226A1 and WO2021170847A1.

[0005] When the part of the elevator shaft that was built higher than the hoist has reached a sufficient stage of completion, the finished part of the elevator shaft can be put into service. At this stage, a "jump" is performed, in which the hoist is lifted higher in the elevator shaft. Thereafter, the car can reach a higher position than before the jump and start servicing the additional floor. In addition, as part of the jump, the protective cover is removed from its position. If construction is also to be carried out above the hoist while the hoist is in its new position, it can be placed in a new position, for example, above the hoist, so that the shaft is divided into two parts again.

[0006] In the prior art, one drawback is that if the protective cover is to be made reliable, safe, strong and easy and quick to install in the shaft, it takes up a lot of space in the vertical direction. Another challenge is that there needs to be space between the top of the car and the protective cover in order to leave room for the car to move forward a distance and come to a complete stop if it (accidentally) runs above the level of its uppermost predetermined position. This safe space on the top of the car and the height of the protective cover together cover the space in real life, so that the protective cover needs to be placed next to the landing door, thereby blocking the construction at this level in the shaft. For this reason, entering the shaft and performing construction work therein can only be carried out relatively far above the position of the hoist and / or the uppermost landing served by the car. Therefore, it is now concluded that the space efficiency is not optimal.

[0007] A further disadvantage of the prior art is that the interior height of the car is standard and therefore does not allow very long objects to be transported. Long objects have therefore been transported to the floor by other means, such as via other special construction time lifts (such as lifts that travel along the exterior surface of a building), cranes or lifts such as those used in some other hoistways. Summary of the invention

[0008] The object of the present invention is to introduce an improved construction time elevator solution which is safe and has a large carrying capacity while allowing construction work and elevator access to the uppermost landing served by the construction time elevator car.

[0009] One object is in particular to introduce a solution by which one or more of the above-mentioned problems of the prior art and / or the disadvantages discussed or suggested elsewhere in the specification may be alleviated.

[0010] Among other things, embodiments are described in which it is possible to use an elevator car with a particularly high transport headroom and still be able to enter the hoistway and perform construction work at a landing point directly above the uppermost landing served by the elevator car at the time of construction.

[0011] A new method for building a lift is proposed, including

[0012] providing a protective cover at a first position in the hoistway, the protective cover dividing the hoistway into a lower portion and an upper portion; and

[0013] providing an elevator car and a counterweight in the hoistway, the elevator car and the counterweight being interconnected by hoisting cables and being movable vertically in the hoistway beneath a protective cover, the car being movable to be flush with a plurality of landings for loading and / or unloading the car; and

[0014] When the car is in its upper limit position, blocking the counterweight from moving below the limit position beyond a first limit distance (D1) by at least one counterweight buffer, in which the car is flush with an uppermost landing (Lu) of the plurality of landings; and moving the elevator car in the lower part of the hoistway for transporting passengers and / or cargo, in particular, the movement being controlled by the elevator control system in response to a car call signal received by the elevator control system from one or more user interfaces located at one or more landings and / or inside the car; and

[0015] Construction work is performed in the upper part of the hoistway.

[0016] The first limit distance (D1) is less than 1.0 m, the height inside the car is greater than 2.5 m, and the protective cover is at least partially below the level of the lower edge (e1) of the opening of the landing (Lu+1) immediately above the uppermost landing (Lu).

[0017] With this solution, one or more of the above-mentioned objectives may be facilitated.

[0018] Preferred further details of the method are presented below, which can be combined with the method alone or in any combination.

[0019] In a preferred embodiment, when the car is in its upper limit position, the distance (D2) between the car and the protective cover is at least equal to the first limit distance (D1), but preferably greater than the first limit distance (D1), wherein the distance (D2) is the distance the car moves upward from its upper limit position until it partially contacts the protective cover.

[0020] In a preferred embodiment, the support point, on which the protective cover is mounted, is located between the level of the upper edge (e2) of the opening of the uppermost platform and the level of the lower edge (e1) of the opening of the platform (LU+1) immediately above the uppermost platform.

[0021] In a preferred embodiment, the protective cover comprises a top plate which is at least partially below the level of the lower edge (e1) of the opening of the stage (LU+1) immediately above said uppermost stage.

[0022] In a preferred embodiment, the protective cover is in said first position which is completely above the level of the upper edge (e2) of the opening of the uppermost landing.

[0023] In a preferred embodiment, the counterweight buffer has a frame and a buffer head, the frame is fixedly mounted in the hoistway, preferably mounted on the bottom plate of the hoistway, the buffer head is arranged in the collision path with the counterweight, and the buffer head can move a distance in the vertical direction relative to the frame, the distance being less than 1.0 meter. Preferably, if the counterweight moves below the extreme position, the counterweight is arranged to contact the buffer head.

[0024] In a preferred embodiment, the method comprises providing one or more guide rails in the hoistway for guiding the car and / or the counterweight.

[0025] In a preferred embodiment, the construction work in the upper part of the hoistway comprises placing an additional one or more guide rail sections (8a, 9a) on top of one or more of the guide rails for extending it / them higher in the hoistway.

[0026] In a preferred embodiment, the method comprises installing a hoisting machine at a first position in the hoistway for moving the hoisting cables, preferably installing the hoisting machine on at least one of said guide rails so as to be vertically supported by said at least one guide rail.

[0027] In a preferred embodiment, the support point comprises one or more support points, wherein the protective cover is mounted on at least one of the guide rails for guiding the car and / or the counterweight and is vertically supported by the at least one guide rail.

[0028] In a preferred embodiment, the upper end of the car is at least partially alongside the hoisting machine when the car is in its upper limit position.

[0029] In a preferred embodiment the hoisting machine is mounted in said first position and / or in said second position beside the path of the car, preferably on the rear side of the guide rails for guiding the elevator car, which is the opposite side to which the car is arranged.

[0030] In a preferred embodiment, the lifter and the protective cover are separate from each other.

[0031] In a preferred embodiment, the method comprises performing a configuration change after a period of time of moving the elevator car in the lower part of the hoistway for transporting passengers and / or freight, and thereafter again moving the elevator car in the lower part of the hoistway for transporting passengers and / or freight, wherein the configuration change comprises

[0032] lifting and reinstalling the protective cover to a second position higher than the first position, thereby increasing the height of the lower portion of the hoistway; and

[0033] The hoist is raised and reinstalled to a second position (of the hoist) higher than the first position, thereby increasing its lifting range to reach a higher position in the hoistway.

[0034] In a preferred embodiment, the configuration change comprises releasing the releasable rope clamping device and moving an additional length of rope from the rope supply storage through the releasable rope clamping device and thereafter closing the releasable rope clamping device.

[0035] In a preferred embodiment, the method includes performing a final configuration change, wherein one or more of the following actions are performed:

[0036] Install the second (final) hoist in the machine room in or above the hoistway 2;

[0037] installing new lifting cables;

[0038] replacing the car with another car or modifying the car;

[0039] Make the limit distance longer.

[0040] In a preferred embodiment, the method comprises providing a further cable connecting the counterweight and the car and suspended between them and passing around a sheave arrangement mounted in the bottom end of the lower section.

[0041] In a preferred embodiment, the counterweight buffer is preferably a telescopic buffer, in particular a telescopic buffer having a stroke length. The stroke length is preferably at least 50 cm.

[0042] A new device (A) for constructing a lift is also proposed, comprising

[0043] Well;

[0044] Multiple levels;

[0045] a protective cover, the protective cover being located at a first position in the shaft, the protective cover dividing the shaft into a lower portion and an upper portion;

[0046] an elevator car and a counterweight connected to each other by hoisting cables and movable vertically in a hoistway beneath a protective cover, the car being movable to be flush with a plurality of landings for loading and / or unloading the car;

[0047] Wherein when the car is in its upper limit position, the counterweight is blocked by at least one counterweight buffer from moving beyond a first limit distance (D1) below its lower limit position, in which upper limit position the car is flush with the uppermost landing of the plurality of landings.

[0048] The first limit distance (D1) is less than 1.0 m, the height of the car interior is greater than 2.5 m, and the protective cover is at least partially below the level of the lower edge of the opening of the landing immediately above the uppermost landing.

[0049] With this solution, one or more of the above-mentioned objectives may be facilitated.

[0050] Preferred additional details of the device have been described above and will be described below, and these additional details can be combined with the device alone or in any combination.

[0051] In a preferred embodiment, when the car is in its upper limit position, the distance (D2) between the car and the protective cover is at least equal to the limit distance (D1), but preferably greater than the limit distance (D1), wherein the distance (D2) is the distance the car moves upward from its upper limit position until a part of the car contacts a part of the protective cover.

[0052] In a preferred embodiment, the support point (p) is located between the horizontal plane of the upper edge (e2) of the opening of the uppermost platform and the horizontal plane of the lower edge (e1) of the opening of the platform (LU+1) immediately above the uppermost platform, and the protective cover is mounted on this support point.

[0053] In a preferred embodiment, the protective cover comprises a top plate (1a) which is at least partially below the level of the lower edge (e1) of the opening of the landing (LU+1) immediately above said uppermost landing.

[0054] In a preferred embodiment, the counterweight buffer has a frame and a buffer head, the frame is fixedly mounted in the hoistway, preferably mounted on the bottom plate of the hoistway, the buffer head is arranged in the collision path with the counterweight, and the buffer head can move a distance in the vertical direction relative to the frame, the distance being less than 1.0 meter. Preferably, if the counterweight moves below the extreme position, the counterweight is arranged to contact the buffer head.

[0055] In a preferred embodiment, the device includes one or more guide rails and a hoist, wherein the one or more guide rails are located in the hoistway for guiding the car and / or counterweight, and the hoist is used to move the hoisting cable, and the hoist is mounted on at least one of the guide rails and is vertically supported by the at least one guide rail.

[0056] In a preferred embodiment, the lifter and the protective cover are separate from each other.

[0057] In a preferred embodiment, the device comprises a hoisting cable. Preferably, the rope of the hoisting cable extends via a releasable rope gripping device into a rope supply storage in the form of one or more rope reels, from which additional rope can be taken out. For example, the rope supply storage can preferably be installed on the landing or in the pit of the hoistway.

[0058] In a preferred embodiment, the upper end of the car is at least partially alongside the hoisting machine when the car is in its upper limit position.

[0059] In a preferred embodiment the hoisting machine is mounted in said first position and / or in said second position beside the path of the car, preferably on the rear side of the guide rails for guiding the elevator car, which is the opposite side to which the car is arranged.

[0060] In a preferred embodiment, the device includes a working device in the upper part of the hoistway.

[0061] In a preferred embodiment, the device includes an elevator control system, which is configured to control the movement of the elevator car in the lower part of the shaft, and in particular to control the movement of the elevator car in the lower part of the shaft in response to a car call signal, which car call signal is received by the elevator control system from one or more user interfaces located at one or more landings and / or inside the car.

[0062] In a preferred embodiment, the protective cover is completely above the level of the upper edge (e2) of the opening of the uppermost landing.

[0063] In a preferred embodiment, the device comprises an additional cable, also called compensating cable or corresponding cable, which connects the counterweight and the car and is suspended between them and passes around a sheave arrangement installed in the bottom end of the lower part.

[0064] In a preferred embodiment, the car comprises an interior in which passengers and / or cargo can be transported. The car preferably also comprises one or more doors by which the interior can be opened and closed. The doors are preferably automatic doors, whereby the lift solution can provide comfortable and safe lift use. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In the following, the present invention will be described in more detail by way of examples and with reference to the accompanying drawings, in which

[0066] Figure 1 An embodiment of an apparatus for building an elevator and stages of a method for building an elevator are illustrated, the car being shown in its upper extreme position.

[0067] Figure 2 The diagram shows the situation when the car is below its upper limit position. Figure 1 Embodiment of the invention.

[0068] Figure 3 Illustrated are stages in a method for building an elevator, wherein configuration changes are being performed.

[0069] Figure 4 Picture shows Figure 3The phase after which configuration changes have been completed.

[0070] Figure 5 The diagram shows the extreme position Figure 1 of counterweight, at which point the car is in its upper limit position.

[0071] Figure 6 The diagram shows that when the first limit distance is below Figure 5 Counterweight in extreme positions shown.

[0072] Figure 7 Preferred details of the control system are illustrated.

[0073] Figure 8 Preferred details of further cables are schematically illustrated. DETAILED DESCRIPTION

[0074] Figure 1 An embodiment of an apparatus A for building an elevator and stages of a method for building an elevator are illustrated.

[0075] This method includes Figure 1 The first position in the hoistway 2 shown provides a protective cover 1 which divides the hoistway 2 into a lower part P1 and an upper part P2.

[0076] The method also includes providing an elevator car 3 and a counterweight 4 in the hoistway 2, which are connected to each other by a lifting cable 5 and can be moved vertically in the hoistway 2 under the protective cover 1, and the car 3 can be moved to be flush with multiple landings L for loading and / or unloading the car. Therefore, it can be moved between landings for transporting goods between landings. When the door s of the car 3 is flush with the lower edge e0 of the opening O of the landing L, the car 3 is considered to be flush with the landing L.

[0077] The method comprises providing one or more guide rails 8 for guiding the car 3 and / or one or more guide rails 9 for guiding the counterweight 4 in the hoistway 2. The method comprises installing a hoisting machine 7 at a first position in the hoistway for moving the hoisting rope 5, preferably installing the hoisting machine on at least one guide rail 8 of the guide rails 8, 9 so as to be vertically supported by the at least one guide rail 8.

[0078] The method comprises moving an elevator car 3 in a lower portion P1 of a hoistway 2 for transporting passengers and / or cargo, in particular in response to a car call signal, by Figure 7 The movement is controlled by an elevator control system 100 schematically illustrated in FIG. 1 , which receives the car call signal from one or more user interfaces 101 located at one or more landings and / or inside the car 3 .

[0079] The method consists in carrying out construction work in the upper portion P2 of the hoistway 2. Thus, the lower portion P1 is intended to be transported by the car 3 while the upper portion P2 is being built.

[0080] The method comprises blocking the counterweight 4 from moving beyond a first limit distance D1 below its lower limit position by at least one counterweight buffer 6, when the car 3 is in its upper limit position, in which the car 3 is flush with the uppermost horizontal surface Lu of the plurality of landings L.

[0081] In the method and device A shown, the first limit distance D1 is less than 1.0 m, and the height I of the car interior is greater than 2.5 m, and the protective cover 1 is at least partially below the level of the lower edge e1 of the opening O of the landing Lu+1 immediately above the uppermost landing. Thus, a car with a particularly large transport space can be used for transport during construction, and it is also possible to enter the shaft from the landing directly above the uppermost landing served by the construction-time elevator car and to perform construction work at a point to the right of the landing. A limit distance D1 of less than 1.0 m is an exception in elevator solutions designed for relatively high lifting heights and therefore having buffers that are sized to stop the counterweight with a long buffer stroke. This is usually the case with split-level elevators, since the dimensions of their components are such that they function throughout the construction process until the usually relatively high final height is reached. The counterweight buffer (s) 6 ensure that the counterweight 4 stops more than this distance below its lower limit position, thereby preventing the car 3 from being pulled more than this same distance above its upper limit position, in which the car 3 is flush with the uppermost Lu of the plurality of landings L. Thus, the overspeeding of the car 3 from its upper limit position upwards is limited by the counterweight buffer 6 within the limit distance D1. After being stopped by the buffer 6, the counterweight 4 can no longer pull the car 3 upwards. Furthermore, safety is further promoted if a compensating cable or corresponding cable (optional; hereinafter referred to as an additional cable 14) connects the counterweight 4 and the car 3 and is suspended between them, passing around a sheave device installed in the bottom end of the lower part P1, because in this case, the stopping of the counterweight 3 not only stops its upward pulling action on the car, but said stopping of the counterweight 3 can also cause a downward pulling force on the car 3 via the compensating cable or corresponding cable. In any case, the limit distance D1 is very short, which helps the car to stop in a short distance in the case of overrunning, in which case the car travels above its limit position. The reduction in the length of the overrunning stroke allows the protective cover 1 to be positioned close to the upper limit position, or even so low that the protective cover 1 is at least partially below the level of the lower edge e1 of the opening O of the landing L immediately above the uppermost landing, which is difficult in typical building designs if the car is particularly tall as described above. A tall car 3 is advantageous because long objects can be transported in this way, which helps the usability of the elevator in construction work.

[0082] In the method and device A shown, when the car is in its upper limit position, the distance D2 between the car and the protective cover 1 is at least equal to the limit distance D1, but preferably greater than the limit distance D1, wherein the distance D2 is the distance that the car 3 can move upward from its upper limit position until it partially contacts the portion of the protective cover 1. Therefore, within the overspeed travel movement range of the car 3 defined by the limit distance D1, no collision occurs between the car 3 and the protective cover 1.

[0083] When in the first position, the support point p is located between the horizontal plane of the upper edge e2 of the opening O of the aforementioned uppermost platform L and the horizontal plane of the lower edge e1 of the opening O of the platform L immediately above the uppermost platform, and the protective cover 1 is mounted on the support point. In the method and device A shown, the support point p includes one or more support points p, wherein the protective cover 1 is mounted on at least one guide rail 9 of the guide rails 8, 9 and is vertically supported by the at least one guide rail 9, for example Figure 1 This helps to position and support the protective cover 1 relatively freely, stably and quickly. The support points p may alternatively or additionally include one or more support points p, where the protective cover 1 is mounted on the shaft wall, for example Figure 1 (support point p on the left-hand side).

[0084] In the method and device A shown, the protective cover 1 is completely above the level of the upper edge e2 of the opening O of the uppermost stage Lu.

[0085] In the method and device A shown, the protective cover 1 includes a top plate 1a, which is at least partially below the level of the lower edge e1 of the opening O of the landing L immediately above the uppermost landing L. The top plate 1a forms the upper side of the protective cover 1. The top plate 1a is preferably inclined. From a vertical direction, it preferably covers at least 80% of the cross-sectional area of ​​the shaft. The protective cover 1 may include an opening through which one or more guide rails 8, 9 may extend, so that one or more guide rails 8, 9 extend through the protective cover. Therefore, the guide rails 8, 9 can be continuous from the lower part P1 to the upper part P2 without vertical gaps. This makes the installation process of the guide rails 8, 9 easier.

[0086] In the method and device A shown, the counterweight buffer 6 has a frame 6a and a buffer head 6b, the frame is fixedly mounted in the shaft 2, preferably mounted on the bottom plate F of the shaft 2, the buffer head is arranged in the collision path with the counterweight 4, and the buffer head 6b can move a distance D3 in the vertical direction relative to the frame 6a, which is less than the limit distance D1, that is, less than 1.0 meters. The distance D3 depends on the existence and height of the gap between the buffer head 6b and the counterweight 4 when the counterweight 4 is in its lowest limit position. If the counterweight moves below the limit position, the counterweight 4 is arranged to contact the buffer head 6b. The buffer is preferably a telescopic buffer with a stroke length. The stroke length is preferably at least 50cm. This type of buffer facilitates it to be able to relatively gently exert an upward force on the counterweight 4 to stop its movement.

[0087] The construction work in the upper part P2 of the shaft 2 comprises placing an additional one or more guide rail sections 8a, 9a on top of one or more of the guide rails 8, 9 so that it / they extend higher in the shaft 2. To facilitate said construction work, the method preferably comprises installing a vertically movable work platform 10 in the upper part P1.

[0088] The hoist 7 is installed beside the path of the car 3 in the first position, preferably on the rear side of the guide rails 8 for guiding the elevator car 3, which is the opposite side to the car 3. When the hoist 7 is in its upper limit position, the upper end of the car 3 is at least partially beside the hoist 7. This makes it easy to drive the car 3 very close to the protective cover 1 without the hoist 7 causing any obstruction.

[0089] In the method and device A shown, the lifting machine 7 and the protective cover 1 are separated from each other. This allows them to be designed, dimensioned and moved independently of each other. This facilitates lightness and low space consumption of these components and the mounting structure used.

[0090] The method comprises performing a configuration change after a period of time in which the elevator car is moved in the lower part of the hoistway 2 for transporting passengers and / or freight, in particular after a period of time in which construction work is performed in the upper part P2 of the hoistway 2 . Figure 3 The diagram shows the stage at which the configuration change is in progress. Figure 4 The diagram shows the stage after the configuration change is completed.

[0091] The configuration changes include

[0092] lifting the protective cover 1 and reinstalling it to a second position (of the protective cover 1 ) higher than the first position (of the protective cover 1 ) so as to increase the height of the lower part P2 of the hoistway 2 ; and

[0093] The hoist 7 is lifted and reinstalled to a second position (of the hoist 7) ​​higher than the first position (of the hoist 7) ​​for increasing its lifting range to reach a higher position in the hoistway 2.

[0094] Preferably, the rope of the lifting cable 5 extends via a releasable rope clamping device 11 into a rope supply storage 12 in the form of one or more rope reels, where additional rope can be taken out. Therefore, a configuration change does not require the installation of new lifting cables to adapt to the changed configuration. Furthermore, the configuration change comprises releasing the releasable rope clamping device 11 and moving the additional length of rope from the rope supply storage 12 through the releasable rope clamping device and then closing the releasable rope clamping device 11.

[0095] After the configuration change, as Figure 4 As shown, the method comprises moving the elevator car 3 again in the lower part P1 of the hoistway 2 for transporting passengers and / or freight.

[0096] In said configuration change, the releasable rope clamp 11 , the rope supply storage 12 and the rope terminal 13 are preferably lifted so that they are also in a higher position after the configuration change.

[0097] After said configuration change, the hoist 7 is in its second position and the car 3 has a new higher upper limit position, wherein the car 3 is flush with the new uppermost landing Lu2, higher than the previous uppermost landing Lu2.

[0098] In the configuration change, when the protective cover 1 and the hoist 5 are in their first position, they are preferably installed in a similar manner as before. Therefore, after the configuration change, the first limit distance D1 is less than 1.0 meters, and the height of the car interior I is greater than 2.5 meters, and the protective cover 1 is at least partially below the level of the lower edge e1 of the opening O of the landing Lu2+1 immediately above the new uppermost landing Lu. Therefore, after the configuration change, the car 3 can serve the new uppermost landing Lu2, and the hoistway can be entered from the new landing Lu2+1 immediately above the uppermost landing Lu2.

[0099] In the above, already in Figure 4 An embodiment is described and illustrated in , wherein the configuration change involves a jump, in which an additional jump will be made. In this case, after the aforementioned configuration change, another similar configuration change will be made. Between configuration changes, the elevator car will move in the lower part of the shaft 2 for transporting passengers and / or cargo, and construction work will be performed in the existing upper part of the shaft 2.

[0100] However, alternatively, by Figure 1 It is possible to implement the configuration change by converting the construction time device A to the final lift. Then, the upper part P2 of the hoistway will be put into use, but not necessarily used. Figure 1 All parts visible in .

[0101] Generally speaking, the method preferably finally includes performing a final configuration change. In said step, one or more of the following actions are performed:

[0102] Install the second final hoist in the machine room in or above hoistway 2;

[0103] installing new lifting cables;

[0104] Replace car 3 with another car or modify car 3;

[0105] Changing the limit distance D1 to be longer comprises modifying at least one counterweight buffer 6, in particular its properties or position, and / or installing new counterweight buffer(s) with different properties, such as, in the case where the new buffer(s) are, for example, telescopic buffers, preferably with a longer stroke length.

[0106] Each of the above actions is optional, as the elevator installation used during construction time use may not require replacement or modification of parts used during construction time use. However, the aforementioned step of changing the limit distance D1 to be longer is preferred, as then the final elevator will not have the same limitations as the construction time elevator. In the final elevator above the car, there is a protective cover that does not need to take up space, but it is possible to build a larger overhead space. Therefore, the distance D1 that prevails during construction time can be temporary and changed to be longer in the final elevator installation. Making the distance D1 longer in the final elevator installation also makes it possible to increase the speed of the car approaching its limit position.

[0107] Referenced above Figure 1 An apparatus A for building an elevator according to an embodiment is discussed. The apparatus A comprises a shaft 2; a plurality of landings L; a protective cover 1, which is located at a first position in the shaft 2, the protective cover 1 dividing the shaft 2 into a lower part P1 and an upper part P2; an elevator car 3 and a counterweight 4, which are connected to each other by lifting cables 5 and can be moved vertically in the shaft 2 below the protective cover 1, and the car 3 can be moved to be flush with the plurality of landings L for loading and / or unloading the car. When the car 3 is in its upper limit position, the counterweight 4 is blocked by the buffer 6 from moving below its lower limit position beyond a first limit distance D1, in which the car 3 is flush with the uppermost landing of the plurality of landings L; and the first limit distance D1 is less than 1.0 meters, and the height h of the car interior I is greater than 2.5 meters, and the protective cover 1 is at least partially below the level of the lower edge of the opening O of the landing L immediately above the uppermost landing L. The device A comprises a construction work device C in the upper part of the hoistway 2. The construction work device C preferably comprises a vertically movable work platform 10 located in the upper part of P1. The construction work device C preferably comprises a hoist (not shown) for moving the work platform 10.

[0108] The method comprises moving an elevator car 3 in a lower portion P1 of a hoistway 2 for transporting passengers and / or cargo, in particular in response to a car call signal, by Figure 7 The movement is controlled by an elevator control system 100 schematically illustrated in FIG. 1 , which receives the car call signal from one or more user interfaces 101 located at one or more landings and / or inside the car 3 .

[0109] like Figure 7 As shown, device A preferably includes an elevator control system 100, which is configured to control the movement of the elevator car 3 in the lower part of the shaft 2, and in particular to control the movement of the elevator car 3 in the lower part of the shaft 2 in response to a car call signal, which is received by the elevator control system from one or more user interfaces 101 located at one or more landings and / or inside the car.

[0110] like Figure 8 As shown, the arrangement A preferably also comprises a further cable 14, also called compensating cable or corresponding cable, which connects the counterweight 4 and the car 3 and is suspended between them and passes around a sheave device 17 installed in the bottom end of the lower part P1. Thus, the stopping of the counterweight 3 not only stops its upward pulling effect on the car 3, but said stopping of the counterweight 3 can also generate a downward pull on the car 3 via the further cable 14. The rope of the further cable 14 preferably also extends via a releasable rope gripping device 15 into a rope supply storage 16, which can be in the form of one or more rope reels, from which additional rope can be taken out, in particular in the case of the configuration changes discussed above.

[0111] Generally speaking, it is preferred that the moving car speed of the elevator car 3 for transporting passengers and / or cargo in the lower part P1 of the shaft 2 is controlled by the elevator control system 100 so that the car 3 reaches its topmost landing Lu at a relatively slow speed to ensure that the counterweight buffer (one or more) 6 can reliably stop the car within the first limit distance D1.

[0112] Generally speaking, it is preferred that the hoisting machine 7 preferably comprises an electric motor 7a and a driving pulley 7b for engaging the hoisting cable 5. The driving pulley 7b can then be rotated by the electric motor 7a.

[0113] Generally speaking, as shown, the suspension ratio of the car 3 and the counterweight 4 may be 2: 1. However, alternatively, some other suspension ratios may be used, such as 1: 1 or 4: 1, or any combination of the above suspension ratios.

[0114] It should be understood that the above description and accompanying drawings are only intended to teach the best way to manufacture and use the present invention known to the inventor. For those skilled in the art, it is obvious that the concept of the present invention can be implemented in various ways. As those skilled in the art understand according to the above teachings, the above-mentioned embodiments of the present invention can therefore be modified or changed without departing from the present invention. Therefore, it should be understood that the present invention and its embodiments are not limited to the above-mentioned examples, but can be changed within the scope of the claims.

Claims

1. A method for constructing an elevator, comprising: providing a protective cover (1) at a first position in the shaft (2), said protective cover (1) dividing said shaft (2) into a lower part (P1) and an upper part (P2); and A lift car (3) and a counterweight (4) are provided in the hoistway (2), the lift car (3) and the counterweight (4) being connected to each other by a lifting cable (5) and being able to move vertically in the hoistway (2) below the protective cover (1), the car (3) being able to be moved flush with a plurality of landings (L) for loading and / or unloading the car; and When the car (3) is in its upper limit position, the counterweight (4) is blocked from moving beyond a first limit distance (D1) below its lower limit position by at least one counterweight buffer (6), wherein the car is flush with the uppermost landing (Lu) of the plurality of landings (L, Lu); and moving the elevator car (3) in the lower part (P1) of the hoistway (2) for transporting passengers and / or cargo; and performing construction work in the upper portion (P2) of the hoistway (2), It is characterized in that The first limit distance (D1) is less than 1.0 meters, and the height of the interior of the car (I) is greater than 2.5 meters, and the protective cover (1) is at least partially below the level of the lower edge (e1) of the opening (O) of the platform (Lu+1) immediately above the uppermost platform (Lu).

2. The method according to claim 1, wherein when the car (3) is in its upper limit position, the distance (D2) between the car (3) and the protective cover (1) is at least equal to the limit distance (D1), preferably greater than the limit distance (D1), wherein the distance (D2) is the distance that the car (3) can be moved upward from its upper limit position until a part of the car contacts a part of the protective cover (1).

3. A method according to any one of the preceding claims, wherein a supporting point (p) is located between a horizontal plane of an upper edge (e2) of the opening (O) of the uppermost platform (Lu) and a horizontal plane of a lower edge (e1) of the opening (O) of the platform (Lu+1) immediately above the uppermost platform (Lu), and the protective cover (1) is mounted on the supporting point.

4. A method according to any one of the preceding claims, wherein the protective cover (1) includes a top plate (1a) which is at least partially below the horizontal plane of the lower edge (e1) of the opening (O) of the step (Lu+1) immediately above the uppermost step (Lu).

5. A method according to any one of the preceding claims, wherein the protective cover (1) is in the first position, which is completely above the horizontal plane of the upper edge (e2) of the opening (O) of the uppermost platform (Lu).

6. A method according to any one of the preceding claims, wherein the counterweight buffer (6) has a frame (6a) and a buffer head (6b), the frame is fixedly installed in the shaft (2), preferably installed on the bottom plate (F) of the shaft (2), the buffer head is arranged in a collision path with the counterweight (4), and the buffer head (6b) can move a distance in the vertical direction relative to the frame (6a), and the distance is less than 1.0 meter.

7. A method according to any one of the preceding claims, wherein the method comprises providing one or more guide rails (8, 9) in the hoistway (2) for guiding the car (3) and / or the counterweight (4).

8. A method according to any of the preceding claims, wherein the construction work in the upper part (P2) of the shaft (2) includes placing one or more additional guide rail sections (8a, 9a) on top of one or more of the guide rails (8, 9) to extend it / them higher in the shaft (2).

9. A method according to any one of the preceding claims, wherein the method comprises installing a hoist (7) at a first position in the shaft (2) for moving the hoisting cable (5), preferably installing the hoist on at least one of the guide rails (8, 9) (8) so as to be vertically supported by the at least one guide rail (8).

10. Method according to any of the preceding claims, wherein the upper end of the car (3) is at least partially located alongside the hoisting machine (7) when the car (3) is in its upper limit position.

11. A method according to any of the preceding claims, wherein the hoist (7) is installed in the first position and / or the second position beside the path of the car (3), preferably installed on the rear side of the guide rail (8) for guiding the elevator car (3), the rear side being the opposite side to which the car (3) is arranged.

12. Method according to any of the preceding claims, wherein the lifting machine (7) and the protective cover (1) are separated from each other.

13. A method according to any one of the preceding claims, wherein the method comprises, after a period of time of moving the elevator car (3) in the lower part (P1) of the shaft (2) for transporting passengers and / or cargo, performing a configuration change and thereafter moving the elevator car (3) in the lower part (P1) of the shaft (2) again for transporting passengers and / or cargo, wherein the configuration change comprises lifting the protective cover (1) and reinstalling it to a second position higher than the first position, thereby increasing the height of the lower portion (P1) of the hoistway (2); and The hoist (7) is lifted and reinstalled in a second position higher than the first position, thereby increasing its lifting range to reach a higher position in the hoistway (2).

14. Method according to any of the preceding claims, wherein the configuration change comprises releasing a releasable rope clamping device (11) and moving an additional length of rope from a rope supply storage (12) through the releasable rope clamping device (11) and thereafter closing the releasable rope clamping device (11).

15. A method according to any one of the preceding claims, wherein the method comprises performing a final configuration change, wherein one or more of the following actions are performed: Installing a second hoist in the hoistway (2) or in a machine room above the hoistway (2); installing new lifting cables; Replacing the car (3) with another car or modifying the car (3); The limit distance (D1) is made longer.

16. A method according to any one of the preceding claims, wherein the method comprises providing a further cable (14) connecting the counterweight (4) and the car (3) and suspended between them and passing around a sheave device (17) installed in the bottom end of the lower part (P1).

17. A method according to any one of the preceding claims, wherein the method comprises controlling the movement of the car (3) by an elevator control system (100) in response to a car call signal, wherein the car call signal is received by the elevator control system (100) from one or more user interfaces (101) located at one or more landings (L) and / or inside the car (3).

18. A method according to any one of the preceding claims, wherein the support point (p) comprises one or more support points (p), wherein the protective cover (1) is mounted on at least one guide rail (9) of the guide rails (8, 9) and is vertically supported by the at least one guide rail (9).

19. A device (A) for constructing an elevator, comprising: Well (2); Multiple platforms (L); a protective cover (1), the protective cover being in a first position in the shaft (2), the protective cover (1) dividing the shaft (2) into a lower part (P1) and an upper part (P2); an elevator car (3) and a counterweight (4), the elevator car (3) and the counterweight (4) being connected to each other by a lifting cable (5) and being able to move vertically in the hoistway (2) below the protective cover (1), the car (3) being able to be moved flush with a plurality of landings (L) for loading and / or unloading the car; wherein when the car (3) is in its upper limit position, the counterweight (4) is blocked by at least one counterweight buffer (6) from moving beyond a first limit distance (D1) below its lower limit position, in which the car is flush with the uppermost landing of the plurality of landings (L); Characterized in that the first limit distance (D1) is less than 1.0 meters, and the height (h) of the interior of the car (I) is greater than 2.5 meters, and the protective cover (1) is at least partially below the horizontal plane of the lower edge (e1) of the opening (O) of the platform (Lu+1) immediately above the uppermost platform (Lu).

20. An apparatus according to the preceding claim, wherein when the car (3) is in its upper limit position, the distance (D2) between the car (3) and the protective cover (1) is at least equal to the limit distance (D1), preferably greater than the limit distance (D1), wherein the distance (D2) is the distance that the car (3) can move upward from its upper limit position until a part of the car contacts a part of the protective cover (1).

21. A device according to any one of the preceding claims, wherein a supporting point (p) is located between a horizontal plane of an upper edge (e2) of the opening (O) of the uppermost platform (Lu) and a horizontal plane of a lower edge (e1) of the opening (O) of the platform (Lu+1) immediately above the uppermost platform (Lu), and the protective cover (1) is mounted on the supporting point.

22. A device according to any one of the preceding claims, wherein the protective cover (1) includes a top plate (1a) which is at least partially below the horizontal plane of the lower edge (e1) of the opening (O) of the platform (Lu+1) immediately above the uppermost platform (Lu).

23. Device according to any of the preceding claims, wherein the protective cover (1) is completely above the level of the upper edge (e2) of the opening (O) of the uppermost stage (Lu).

24. An apparatus according to any one of the preceding claims, wherein the counterweight buffer (6) has a frame (6a) and a buffer head (6b), the frame being fixedly mounted in the shaft (2), preferably mounted on the bottom plate (F) of the shaft (2), the buffer head being arranged in a collision path with the counterweight (4), and the buffer head (6b) being capable of moving a distance in a vertical direction relative to the frame (6a), the distance being less than 1.0 meter.

25. An apparatus according to any one of the preceding claims, wherein the apparatus comprises one or more guide rails (8, 9) and a hoist (7), wherein the one or more guide rails are located in the shaft (2) for guiding the car (3) and / or the counterweight (4), the hoist is used to move the hoisting cable (5), and the hoist (7) is mounted on at least one guide rail (8) among the guide rails (8, 9) and is vertically supported by the at least one guide rail (8).

26. Device according to any of the preceding claims, wherein the lifting machine (7) and the protective cover (1) are separate from each other.

27. A device according to any of the preceding claims, wherein the device (A) comprises a lifting cable (5), the rope of which preferably extends via a releasable rope clamping device (11) into a rope supply storage (12), the rope supply storage (12) preferably being in the form of one or more rope reels, from which additional rope can be taken out.

28. An arrangement according to any one of the preceding claims, wherein the upper end of the car (3) is at least partially located alongside the hoist (7) when the car (3) is in its upper limit position.

29. An apparatus according to any of the preceding claims, wherein the hoist (7) is mounted at the first position and / or the second position beside the path of the car (3), preferably mounted on the rear side of the guide rail (8) for guiding the elevator car (3), the rear side being the opposite side to which the car (3) is arranged.

30. Device according to any of the preceding claims, wherein said device (A) comprises a working device (C) located in said upper part (P2) of said hoistway (2).

31. An apparatus according to any one of the preceding claims, wherein the apparatus (A) comprises an elevator control system (100), the elevator control system being configured to control the movement of the elevator car (3) in the lower part (P1) of the shaft (2), in particular the elevator control system controlling the movement of the elevator car in response to a car call signal, the car call signal being received by the elevator control system (100) from one or more user interfaces (101) located at one or more landings and / or inside the car (3).

32. A device according to any of the preceding claims, wherein the device (A) comprises a further cable (14) connecting the counterweight (4) and the car (3) and suspended between them and passing around a sheave device (17) installed in the bottom end of the lower part (P1) of the hoistway (2).

33. A method or device according to any one of the preceding claims, wherein each of the counterweight buffers (6) is a telescopic buffer, preferably having a stroke length of at least 50 cm.

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