FI108431B - Hissijõrjestelmõ - Google Patents

Description

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108431 LIFT SYSTEM

The invention relates to a system as defined in the preamble of claim 1 for use during the construction of an elevator.

When constructing tall buildings, lifts are required before ..5 than when the building is completed. Either the lifts are needed for building use or the lower floors are completed earlier, when the lifts that serve them need to be available. As construction progresses, the elevator must be able to serve as high floor levels as possible.

10 The so-called jump lifts have been developed for use during construction, in which the lifting height of the lift is gradually increased as construction work progresses. The engine room of the elevator is moved to the upper level and the length of the elevator cable used is increased accordingly. Generally, elevators are required to be fully accessible and fully functional. Thus, other parts dependent on the lifting height, such as basket cables, compensation ropes, speed limiters and shaft electrification and shaft cables, must be extended to the entire length of the finished shaft.

From US 5,033,586 there is previously known a solution in which the elevator machine room can be raised and secured to a desired height. In this solution, a second level is provided above the engine room with rope storage. When moving the machine room ··, the elevator car is locked to a standstill »1» 1 25 in relation to the engine room and the required rope feed is fed from the rope storage. This solution requires lifting of rope storage • »·" ... along with the engine room and the construction of an extra level, and • t 1 complex equipment for feeding an additional rope. 2 2 ·

JP 7-97157 discloses an earlier solution for the use of the elevator '1 '30 during construction. In this solution, the elevator ropes are arranged from the elevator car traveling in connection with the elevator machine. machine, and thereafter the elevator rope is arranged to travel to the outside of the shaft rope storage t '35.

108431 2

It is an object of the present invention to provide an inexpensive elevator for use during construction, which can be easily raised to a higher operating level as construction progresses, and which is also suitable for the actual elevator of the building.

The system according to the invention during operation of the elevator during construction i is characterized by what is disclosed in the characterizing part of claim 1. As to the features of other preferred embodiments of the invention, reference is made to the dependent claims.

The solution according to the invention makes it easy to add the rope as the building height increases. All lift components are always available as soon as you move to a new level of operation without complicated adjustments and settings. The parts of the lifting rope and the compensating rope, which are not yet in use, can be freely placed in a suitable place even in the space outside the building. The equipment in the engine room during the use of the building constitutes the complete part of the elevator in the engine room, where applicable.

The invention will now be described in detail with reference to an embodiment, with reference to the drawings, in which: - Figure 1 shows an elevator according to the invention and - Figure 2 shows another elevator according to the invention.

Fig. 1 illustrates an elevator system according to the invention.

: **: At the top of the finished elevator shaft, delimited by side walls 28 and 30 and • · ·; * · *: 25, a machine room level 22 is attached to which is mounted the elevator drive unit 18. The drive unit 18 consists of the elevator motor spin wheel. The elevator rope 4 is adapted to pass over the traction sheave and is secured at one end to a carriage 2} 30 or to a carcass. On one side of the traction sheave, the elevator rope passes over the diverting pulley 20 via the diverting pulley 54 at the top of the counterweight 56 to the engine room level 22. Elevator ·. the rope 4 is further guided over the diverting pulley 5 and fastened ____: substantially at the machine room level 22 by a bracket 3 108431 24 attached to the shaft or building structures. In this example, the elevator car is implemented with a 1: 1 suspension, whereby the peripheral speed of the drive wheel corresponds to the speed of the elevator car. The counterweight, on the other hand, has a 1: 2 suspension, whereby the speed of the counterweight 5 is half that of the drive wheel. A compensation rope 10 is connected to the lower part of the body 2 in a manner known per se, which is guided through a pivoting wheel 12 at the lower part of the shaft through a pivoting wheel 58 attached to the lower part of the shaft 1: 1 on the elevator car side and 1: 2 on the counterweight side. With regard to the lift hoisting machinery and the compensation rope hoist, the elevator operates normally.

The elevator rope part 6, which is not in use during construction, 15 is free below the bracket 24 and the additional rope is wound on the rope reels 8 of the rope storage 8. The rope storage is preferably located in the lower part of the building at or below the level of the first temporary machine room level position. Correspondingly, the excess of the compensation rope 14 behind the bracket 26 is stored on the coils of the rope storage 16.

The speed limiter rope 32 is fastened at one end to the body and guided to pass through the folding wheel 35 at the bottom of the shaft to the speed limiter wheel 34. A speed rope 32 rope 32 is secured to a rack mount 36 * on the roof of the car and rope portion 38 is stored in a rope storage 40 of the ridge 40 on the car roof 42.

On the machine room level or in its proximity to the second level 48, there is a space provided for the control panel 52 and the elevator control unit *! * 30 50. The level 48 is connected to the level 22 so that both levels can be raised together to further the construction work. ·',_/ you. The power supply to the elevator car and the control of the basket devices are arranged in a manner known per se by a basket cable 43 which is attached to the elevator car 2 and the elevator control unit 50 respectively. For future lifting heights, the car cable storage 44 is provided The shaft cable storage 46 reserved for the machine room level 22 is also provided.

Figure 2 shows another exemplary embodiment of the invention in which the compensation apparatus is implemented with chains 60-Yh-5 and there is no need for a rope stock, but when moving the machine room to an upper level, the compensation chain 60 is extended by the required amount. In other respects, the arrangement of Fig. 2 corresponds to the solution of Fig. 1, and the corresponding parts are numbered with the same reference numerals as in ku-10 in Fig. 1.

When the elevator engine room must be raised to the next level, proceed as follows. The elevator car is driven to the highest possible position during the service run. The counterweight is then down and supported and locked in place. After this, the basket is supported in place by, for example, locking in the guides or in another reliable manner. The rope clips of the lifting and compensating ropes are removed, whereupon the necessary rope addition from the rope stores can be fed. The speed limiter rope attachment is released to allow the speed limiter rope to slip during lifting of the engine room. The wiring connected to the elevator control panel is disconnected.

: ,, t; The machine room of the elevator and its support beams are slightly raised by a hoist or a construction hoist (not shown), whereby the support means of the machine room structure can be removed. The engine room is raised ♦ * ·: * · *: 25 to the next machine room level by a hoist or other suitable lifting method. During the lifting, the lifting and compensating ropes pass freely from the coils of the rope stores. Also, the speed limiter rope ... on the roof of the elevator car ... runs the speed limiter rope. Correspondingly, for machine '1 * 30 room level basket and shaft cable coils ··· V: The amount of basket and shaft cable corresponding to the lifting is released.

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After raising the engine room level, the engine room support means are active; The speed limiter rope is secured to the roof of the carriage 35. the shaft cables are attached and connected to the control panel, and the elevator is then ready to serve the new layers.

In elevators where the compensation equipment is implemented with chains, the compensation chain is continued prior to raising the engine room to a new operating level.

Numerous different implementation options are available to support the body and 10 counterweights during lifting the engine room. Similarly, lifting the engine room and lifting the basket can be accomplished in a number of alternative ways. In practice, locking of ropes during construction can also be accomplished by several methods. Correspondingly, the supply of rope from the rope stores can be arranged by different means. The location of the rope storage is selectable according to the facilities available on each site. The engine room control panels and elevator control unit may also be flush with the hoisting machine.

Once the building has reached its final height, the engine room with its lifting machinery and other machine room equipment during construction can be left permanently forming a corresponding part of the engine room. Of course, rope stores and other equipment used during construction will be removed unnecessarily.

The above disclosure is not to be construed as limiting the scope of the patent, but embodiments of the invention may freely vary within the scope of the claims.

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Claims (12)

6 108431 A system for use during the lifetime of an elevator, the system comprising an elevator car (2), an elevator rope (4), a counterweight (56), and a machine room level (22) provided with an elevator machine (18) in which the elevator ropes (4) are to travel from the elevator car (2) to the traction sheave (54) arranged on the drive gear connected to the elevator machine (18) and further to the counterweight (56) to the machine room plane (22) so that the elevator rope (4) that the attachment of the aforementioned elevator cable (4) is arranged substantially in the vicinity of the aforementioned engine room plane (22). System according to Claim 1, characterized in that the rope storage (8) is located below the machine room plane (22). System according to Claim 1, characterized in that the elevator rope (4) from the counterweight (56) is arranged to pass over the diverting wheel (5) 20 on the machine room plane (22) and that the elevator rope (4) 24). i A system according to claim 1, characterized by The system comprises a compensating rope (10) secured to the lower part of the elevator car (2) and arranged to pass • · * 'y through a deflection wheel (12) underneath the car to an opposing deflection wheel (58) and further to the area of the shaft -, to the compensation rope bracket (26) in the part and, after the point of attachment, to the compensation rope storage (16). • · • · · A system as claimed in claim 1, characterized in that it comprises stores for a basket cable (43), cable glands (45) and a speed limiter cable (32). System according to claim 1, characterized in that the elevator control and operating system (50) is arranged substantially in connection with the machine room level (22). 7 108431 System according to one of Claims 1 to 6, characterized in that the machine room plane (22) can be raised upwards. System according to claim 7, characterized in that the elevator car (2) and counterweight (54) can be locked immobile when the machine room level (22) is raised. System according to one of Claims 7 to 8, characterized in that a quantity of rope corresponding to the lifting of the machine room level (22) can be fed from the rope stores (8,16). System according to one of Claims 1 to 9, characterized in that the engine room plane (22) is supported in the building. System according to one of Claims 1 to 10, characterized in that, when the building is at its final height, the engine room level (22) forms the engine room or part of the engine room. System according to one of Claims 1 to 11, characterized in that the elevator components of the use during construction are essentially retained in the elevator of the finished building. • · · * · * • «· • •« * · '• · «• · <(· • • • • •••••••••• 108 108