FI114458B - Method and apparatus for installing a lift during the construction phase of a building - Google Patents

Abstract

The invention also relates to a method for installing an elevator provided with a machine room and suspended by hoisting ropes (15) and moving along guide rails (2) during the construction stage of building. The elevator is provided with a hoisting device (17), by means of which the machine room (4), which is initially placed in the lower part of the elevator shaft (1), is lifted through one or more floor-to-floor distances at a time in the shaft in such manner that at least the vertical forces resulting from the lifting are transmitted to the bottom structures of the building substantially via the guide rails (2) already secured.

Description

114458

METHOD AND EQUIPMENT FOR THE INSTALLATION OF A LIFT IN THE CONSTRUCTION PHASE OF THE BUILDING

The invention relates to a method as defined in the preamble of claim 1 and to an apparatus as defined in the preamble of claim 6 for installing a lift during the construction phase of a building.

When constructing tall buildings, elevators are often needed during the construction phase before the building is completed. Elevators are needed eg. during construction, allowing builders to take the elevator from the bottom to the top of the building as much as possible. Similarly, when the lower floors of a building are completed earlier than the upper floors, the elevators must be able to be occupied by the people already using the building.

15 As construction progresses, the elevator must be able to serve the highest possible floor levels.

For such construction-time use, e.g. the so-called jump-lift, in which the lifting height of his-, · is increased by increments of one or more floors each time the construction work is advanced. high enough since the last jump. In this case, the elevator engine room is moved at one time upwards by the number of floors mentioned above, and all components related to lifting height such as' · 25 basket cables, speed limiter ropes and other non-bone components, shaft electrification, shaft cables, compensation ropes, etc.

h. According to the prior art, there is a. 30 used mm. the building's own building crane. The problem is that the installation of the lift is dependent on the use of a construction crane. A construction crane may be needed simultaneously in the rest of the building, whereby the crane will not be available for the desired 2 114458 hours or long enough. Similarly, construction crane operating aid for short-term operating needs can be extremely difficult to obtain.

Also known is PCT Publication No. WO00 / 07923, 5 solutions for installing an elevator which does not use a building crane but instead lifts the machine room of the elevator one by one by means of a support platform and lifting cylinders supported on the support platform. The problem with this solution is that the support base and the 10 engine room are already supported during the construction period in the storey floors of the building. The total weight of a group of several elevators can be several thousand kilograms, which is too high and a risky load for still partially unfinished floors. For example, the roof of the elevator lobby between the four elevator groups of 15 is relatively weak and cannot withstand the above loads. Another problem is that the builder may have to make additional openings in structures where reinforcements can be placed during the installation of the elevator. Another problem with this solution is that the machine room i can only be lifted one floor at a time, so that each lift causes all the same additional preparation and work, which requires a lot of '·' extra installation time.

It is an object of the invention to eliminate the aforesaid drawbacks and to facilitate and expedite the installation of a lift during construction by providing an inexpensive and easy to implement and reliable operation. system for installing the lift during construction. In addition; '30 aims to provide hardware for lift construction'; for early installation.

For the method according to the invention, the building materials for the elevator . characterized by what is stated in the characterizing part of claim 1 and 3,114,458 by the apparatus according to the invention for the erection of a lift during construction is characterized by what is stated in the characterizing part of claim 6.

Other embodiments of the invention are characterized by what is set forth in the other claims.

The invention can achieve one or more mm.

the following advantages: - lift installation can be started very early in the construction phase 10 - the elevator engine room and all equipment are lifted up by a lifting system developed specifically for the lift - no building crane is required so no other construction work is interrupted or delayed 15 - elevator installation independent the machine room does not need to be supported on the elevator shaft walls or floor intermediate floors - the weight of the engine room, elevator car and counterweight can be supported 20 or at least partially by the elevator cables during the elevator installation - no additional loads are imposed on the walls and floors allows at least four times the transport capacity and logistics utilization compared to a well-known elevator during construction: 30 - saves time and expense for builders and subcontractors aa the completion of the building ____ - less work required to lift the engine room - installation times for the elevator are shortened and the total installation time ;; cost reduction 4 114458 - safer installation environment - finished floors very quickly after completion in normal elevator use - building facade can be completed 5 times earlier - lower energy consumption than prior art - less space needed outside the building - easy to set up as a standard installation method.

10

The invention will now be described in more detail with reference to an exemplary embodiment, with reference to the accompanying simplified drawings, in which Fig. 1 is a schematic front elevational view of 20, Figure 3 is a schematic front view of the elevator installation of the invention, wherein the '' jumping lift is performed and the elevator car is · '/ · raised to the sixth floor; and Figure 4 is a schematic front view of the elevator installation of the ropes and the speed limiter rope are mounted at this height.

B! 30th The installation of the elevator in the main stage is carried out by the method according to the invention as follows. After the builder has first installed a movable and waterproof support platform 7 in shaft 1, which is supported, for example, on the fifth floor 35 floor level, the actual installation of elevator 5 114458 is started. Initially, a work platform 8 and an auxiliary hoist for lifting the elevator components are attached to the support platform 7. Slide shoes are also attached to the work platform 8, by means of which the work platform is controlled by the elevator guides. After this, in the actual first step of the installation, the elevator rails 2 and counterweight rails, which are not shown in the figures, are attached to the lower part of the shaft 1 for clarity. At this point, five guide bars are superimposed, of which the lowest guide bar 10 and the upper guide bar 10 are shorter than the other three bars of equal length. At normal floor height, the rails then extend up to almost the height of the fifth floor.

In the second phase of the installation, the counterweight 15 11 frame and level doors, as well as the shaft illumination and electrical installation, are installed as high as possible at this stage of the building. In this example, the installation is done at this stage up to the fifth floor.

In the third step of the installation, a temporary frame is built on the machine room 4 of the elevator * · '20, which the machine * reserves. · The room is placed on the ground floor of the lift by a hoisting machine; 'With work 5 and control panels. At the same time engine room. a speed limiter and a lateral lift 17, which performs jumping lifting to the engine room, is provided with lifting points for the hoisting rope 18 or the like, which are secured to the top of the lift rails by a special, easily removable fastening structure 19. in the engine room ♦ 30 and with the help of its hoisting rope or similar, which pulls the machine room upwards during the jump lift. If the worktop 8 is in the path of the fastening structure 19, the worktop '' may be moved to a suitable position 35 during the jump lift.

114458 6

Fig. 1 shows a fourth stage of installation, in which the engine room 4 is raised to the second floor and the elevator car 3 is mounted in the pit by constructing a basket frame and fixing the wall, ceiling and floor elements of the basket to each other and the frame. At this stage, the body can also be electrified. Likewise, the basket is provided with a door and the basket is completed. At this stage, the elevator is also equipped with a lifting rope, which is still on the rope drum. In connection with the tension phase, the elevator car 3 is also fastened to the engine room 4 for jumping, for example by means of chains 6.

In the fifth step of Fig. 2, the combination of the engine room and the elevator car is lifted by one lift upwards by means of the elevator 17 15 and supported on the already installed elevator guide rails 2. At the same time, the current upper tie plate of the elevator rails is also securely fixed.

In the sixth step of the installation, the waterproof '· 20 support level 7 is raised for 5 upcoming jump lifts: * above and supported on the floor level. The installation is now further advanced by carrying out the necessary plumbing and electrification, and by installing, in a five-story section, the elevator rails 2, counterweight, '25 rails and level doors.

In the seventh step shown in Figure 3, the actual hop lift is performed. In this case, the elevator machine room 4 is pulled up together with the elevator car 3, by five intervals, whereby the elevator car rises: 30 from the first floor to the sixth floor.

'' Lifting is effected by means of a hoist 17 such that the lifting points are at the top of the elevator rails 2. Then. . the load resulting from the lifting is evenly distributed over the elevator rails 2, and the lifting does not stress the building's own structures, such as walls, floor floors, or the walls of the elevator shaft. When the jumping lift is completed, the combination of the engine room and the elevator car is evenly supported on the already installed elevator rails 2. In addition, the current top rope of the elevator rails is securely fastened.

Figure 4 shows the eighth step of the elevator installation where the necessary rope is installed. The elevator ropes 13 are guided from the drive wheel 5 of the machine 5 to the attachment point around the diverting pulley 14 in the elevator frame 10, and the counterweight ropes 15, respectively, are guided to the attachment point of the diverting pulley 16 in the counterweight 11. In addition, a speed limiter rope 12 is installed. At this stage, the elevator is also balanced by adding the required weights to the counterweight frame. In addition, the necessary shaft components and switches are installed, after which the elevator is ready for inspection and use for the lower six floors.

In the next step, the waterproof support platform 7 is again raised five layers higher for future jumping lift and supported on the floor level. The installation is now continued for the next five layers, • similar to the steps described above: · in steps 6-8. This jumps five to 25 floors at a time and gives the elevator an even higher elevation as the building rises up.

It will be apparent to one skilled in the art that various embodiments of the invention are not limited to the Examples set forth above, but may vary within the scope of the claims set forth below. According to the examples described above, a person skilled in the art may vary the embodiment of the invention, for example, by using something other than the aforementioned jumping lift; five layers of floor space. Depending on the circumstances, any distance between the floors may be most appropriate. In this case, it is possible to mention all layers between 1 ... 8 and suitably for example between 3 ... 7 or 4 ... 6.

5 It will also be appreciated by one skilled in the art that the order and manner of operation of the various details of the installation method may vary. Likewise, the use and operation of the hoist used to lift the engine room may differ from the above.

Claims (9)

A method for installing an elevator with a machine room (4) supported by a hoisting rope (15) and guided (2) during the construction phase of the building, wherein the engine room (4) initially located in the lower part of the elevator shaft (1) is lifted one or more that the vertical forces caused by the lifting are conducted substantially along the already fixed guides (2) to the lower structures of the building. Method according to Claim 1, characterized in that, in connection with the lifting of the engine room (4), a lifting device (17) secured to the engine room is connected via a lifting rope (18) or the like to a supporting structure (19). Method according to Claim 1 or 2, characterized in that, when lifting the engine room (4), the elevator car (3) temporarily connected to the engine room is raised a corresponding distance upwards. • · '' 20 Method according to claim 1, 2 or 3, characterized in that the machine room (4) and the elevator car: (3) are lifted at a distance corresponding to 1 to 8 layers, suitably 3 to 7 layers, and preferably 5 | Floor matter. Method according to one of the preceding claims, characterized in that each machine room (4); and after lifting the elevator car (3), the engine room and elevator car are supported on the elevator rails (2), after which the fastening structure (19) of the lifting device (17) is detached from the upper end of the cables (2). . Apparatus for installing a 1 4458 elevator equipped with an engine room (4) supported by a hoisting rope (15) and running with rails (2) during the construction phase of a building, comprising at least a lifting device for lifting the engine room (4) temporarily located in the elevator shaft. 17), characterized in that the lifting device (17) is connected to the rails (2) already installed in the elevator so that the vertical forces caused by the lifting are substantially directed along the rails (2) to the lower structures of the building. Apparatus according to Claim 6, characterized in that the lifting device (17) is a lift fixed to the structure of the engine room (4) and connected to the upper end of the rails (2) already installed by means of a lifting rope (18). Apparatus according to claim 6 or 7, characterized in that the lifting device (17) is connected to the upper end of the already installed rails (2) by means of a removable fastening structure (19) arranged to equalize the vertical forces exerted by the lifting substantially on each of the rails (2). . : 20 Apparatus according to claim 6, 7 or 8, characterized in that the lifting rope j (18) or the like of the lifting device (17) is arranged in such a length. in that the machine room (4) can be lifted at least at intervals of 1 ... 8 layers at a time. 25 t * 114458