EP1641700B1 - Lift with a cable-driven cabin - Google Patents

Abstract

An elevator comprises a cable-driven car to which vertical guide rails are allocated. The cables are arranged on both sides of the car, each in a housing and acted upon by a common driving wheel.

Description

The invention relates to an elevator with a cable-driven cabin, which are associated with vertical guide rails.

An elevator is usually installed inside a vertical shaft that is part of or rigidly connected to a building structure so that it forms a unit with it. The shaft is made of concrete, metal, glass or a combination of these materials and represents a heavy and expensive component. However, the shaft is imperative to protect the cables connected to the cabin from the weather, in particular from moisture, since moisture negatively affects the friction between the cables and the associated traction sheave. To avoid a complicated shaft in an elevator arranged outdoors, it is known from practice to move the cabin of the elevator with a reciprocating directly or in conjunction with ropes under a translation of 2: 1 in the vertical direction. In such an elevator, however, the delivery height is very limited and the speed of the cabin must not exceed 1 m / s. Another elevator arranged outdoors is disclosed in JP49 074 884 A, which is considered to be the closest prior art.

It is an object of the invention to provide an elevator of the type mentioned, which is to operate with a simple structure and guaranteed safety outdoors.

According to the invention the object is achieved in that the cables are arranged on both sides of the cabin in each case a housing and acted upon by a common traction sheave.

Due to this measure, it is not necessary to install a shaft in order to protect the ropes from the weather, in particular moisture, when the elevator is operated outdoors. By placing the ropes in the housing, a reliable operation of the elevator is ensured.

Conveniently, the ropes are coupled on each side of the cabin on the one hand with the cabin and on the other with a counterweight. This is accompanied by a uniform load on the cables and a reduction in the power of the drive of the traction sheave, since the forces cancel each other. To achieve a compact design, the counterweight and the cabin are located on opposite sides of a vertical support supporting the guide rail. The vertical supports arranged on both sides of the cabin are the only essential static components of the elevator. They can be arranged, for example, in the area of the door-equipped front of the cabin and connected to a building. In addition, a free installation of the elevator is possible, in which the vertical support are held, for example by means of tension cables. This type of installation of the vertical support and thus the elevator is possible, for example, when used in a tent or on a stand or the like relatively unstable components.

In order to perform the vertical support both bending and kink-resistant and pressure-stable, each vertical support is preferably designed as a double-T-carrier and arranged in the housing. For example, the vertical beams can be mounted on at least one foundation in such a way that the entire elevator can be installed free-standing, that is without further supports.

For a space-saving implementation of the leadership of the ropes, the vertical support are preferably provided at their upper ends with a bracket for supporting the traction sheave and a plurality of pulleys for the ropes, wherein the console extends like a bridge between the two vertical beams. The deflection pulleys are of course arranged in such a way to the traction sheave that it is encompassed by the cables in wrap angles, which correspond to the relevant technical rules. Appropriately, mounted on the console with the interposition of a transmission, the traction sheave driving motor. With a corresponding design of the engine can be dispensed with the transmission, the drive so be executed "gearless". In addition, the console carries a control electronics. Of course it is also possible the control electronics, the engine and the transmission below the To arrange the cabin stationary and to guide the ropes over corresponding pulleys to the cabin.

Preferably, the vertical beams are fixed with the console opposite end in a pit. The, for example, concreted, pit ensures on the one hand a secure attachment of the vertical support and provides the other a free space below the cabin in its lowest end position available. For additional reinforcement, the vertical supports are connected to one another by means of a plurality of mutually spaced cross members.

Preferably, the web of each vertical support is aligned parallel to the cabin and carries on the side facing the cabin, the guide rail. Thus, the guide rail is disposed within the spanned by the flanges and the web of the vertical support U-shaped space. To prevent uncontrollable oscillating movements of the counterweight, according to a development of the invention, the flanges on the opposite side of the guide rail of the vertical support on guide means to support the counterweight in the corresponding U-shaped recess of the vertical support. Due to the arrangement of the counterweight and the guide rail to the web of the vertical support undergoes the vertical support substantially a compressive stress.

In order to realize a relatively low-wear guidance of the counterweight, the guide means are expediently designed as angle profiles fastened to the flanges opposite to one another, on which fastened to the counterweight Support guide rollers. In this case, for example, the tip of the angle profile in the direction of the counterweight and the guide rollers are aligned so that their treads over the entire surface roll over the legs of the angle profile.

Preferably, the cross-sectionally T-shaped guide rail is set with the interposition of a holder profile on the web of the vertical support that its foot is parallel to the web of the vertical support and her between the cabin-side rollers guided web points in the direction of the cabin. Since there are both guide rails and rollers on both sides of the cabin, the cabin is reliably supported, whereby the storage only allows an upward and downward movement of the cabin.

To accomplish a relatively low-distortion mounting of the guide rail, this can for example be attached to the holding profile by means of clamping claws and the holding profile in turn be welded to the vertical support. According to a further embodiment of the invention, the rollers are mounted on a U-profile, which is connected via an angle bracket with a frame of the cabin. Instead of an angle bracket, for example, a carrier made of a U or flat profile can be used and the U-profile can be replaced for example by an angle profile.

Conveniently, the frame is composed of U-shaped profiles in cross-section, wherein the extending over the height of the cabin profiles point with their legs in the direction of the respective associated vertical support and one leg of the profile is connected to a leg of the angle profile, the other leg of which supports the U-profile. Because of this relatively rigid construction, a concern of the roles is always guaranteed on the associated guide rail.

In order to protect the coupling region between the cabin and the vertical beams or the associated guide rails from the weather, the cabin is preferably assigned on both sides over the height extending protective housing that covers the corresponding profiles of the frame and the one passage for the corresponding profile having associated leg of the angle leg, which projects through a slot of the housing receiving the associated vertical support. Thus, the openings, namely on the one hand, the passage of the protective housing and on the other, the slot of the housing, penetrate through the moisture could be kept relatively small, while still ensuring a reliable storage of the car between the vertical beams. Conveniently, the passage between two projections of the protective housing is formed, which protrude through the slot of the housing. Thus, the housing is nested with the protective housing in the region of the openings and prevents the ingress of water. Preferably, the housing carries on both sides of the slot V-shaped mutually aligned sealing lips, which bear against the projections of the protective housing. This prevents that rain or snow, which impinges on the protective housing or the housing passes into the interior of the same and there leads to an impairment of the cables or the guides.

Conveniently, a trigger of a safety gear is assigned within the respective housing of a guide rail electric cable and the other guide rail. Preferably, the electrical cables protrude through the slot of the housing and the passage of the protective housing in the interior of the cabin. Thus, the electric cables, which serve to supply energy to consumers within the cabin and the other to control the elevator and the trigger of the safety gear, which acts as known from the prior art, the two guide rails, weatherproof housed within the housing.

Preferably, the traction sheave and the deflecting discs are covered by a hood. Of course, under this hood are also engine, transmission and control equipment, which are thus weatherproof, so that the elevator is suitable for outdoor installation. The hood may be pivotally hinged for maintenance or have a flap or door.

According to a further advantageous embodiment of the invention, a wire rope is attached to both sides of the cab to the respective counterweight and the other to the cabin, wherein the wire runs below the associated vertical support and supports a pulley with a tension weight. To release the safety gear, so an emergency braking device, a hoist is attached to the wire to pull the cabin with the drive brake either up or down. Because the cabin is both uphill and downhill can catch in catch, different approaches for releasing the safety gear are required. After an emergency stop during a descent, the cabin must be moved upwards. For this purpose, one end of a hoist is attached to the counterweight associated portion of the wire rope, the other end of which, in contrast, further down in a pit in which the pulley is located with the tension weight, is set. Upon loading the hoist to tension the hoist, the counterweight is lowered and, as a result, the cab is moved upwardly so that the safety gear is disengaged. After the emergency braking during an upward movement, it is necessary to move the cabin down, for which purpose on the counterweight associated portion of the wire rope one end of the hoist is attached, the other end, however, is determined above. The tension weight is fixed for example by fixing the deflection roller. Subsequently, after releasing the drive brake of the elevator, the cabin is pulled down to bring the safety gear out of operative engagement.

So that users of the elevator or its drive parts are protected from cold and / or heat, the cabin and / or the area covered by the hood are expediently connected to a heating and / or air conditioning system for temperature control.

In order to allow the users of the elevator installed in front of a building a comfortable transition from the cabin to the building, it is advantageous to have in the plane of a floor of each floor a balcony between one Exterior door of the elevator and a building arranged. The balconies also serve as a roof for underlying balconies, with above the balcony for the top floor, of course, a roofing can be provided. Furthermore, it is possible to dimension the balconies so that they can be used as a seat.

Preferably, several balconies are interconnected by means of a scaffold. Conveniently, the framework is free-standing or attached to the building and / or to the vertical beams. Alternatively, the balconies are arranged on the vertical beams.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the respectively specified combination but also in other combinations. The scope of the present invention is defined only by the claims.

Fig. 1

eine Schnittdarstellung des erfindungsgemäßen Aufzugs,

Fig. 2

eine vergrößerte Darstellung einer Einzelheit II gemäß Fig. 1,

Fig. 3

eine Vorderansicht einer Antriebseinheit des Aufzugs gemäß Fig. 2,

Fig. 4

eine Draufsicht auf die Darstellung nach Fig. 3,

Fig. 5

eine Ansicht der Einzelheit II gemäß Fig. 1 von unten und

Fig. 6

eine Seitenansicht der Darstellung nach Fig. 5.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it:

Fig. 1

a sectional view of the elevator according to the invention,

Fig. 2

an enlarged view of a detail II of FIG. 1,

Fig. 3

a front view of a drive unit of the elevator of FIG. 2,

Fig. 4

a top view of the illustration of FIG. 3,

Fig. 5

a view of the detail II of FIG. 1 from below and

Fig. 6

a side view of the illustration of FIG. 5th

The elevator comprises a cab 1 suitable for transporting a plurality of persons, which is provided with a door 2 and which is reinforced by a frame 4 composed of profiles 3, the frame 4 being arranged in the region of the cabin 2 having the door 2 , Before each floor, the elevator has an outside door 52 and a balcony 53 associated with it to ensure a comfortable transition from the cabin 1 into a building. The profiles 3 have a U-shaped cross-section, which are aligned over the height of the car 1 extending profiles 3 with their webs 5 in the direction of the cabin 1 and the legs 6 of the profiles 3 are perpendicular to the outer wall 7 of the car 1 , One of the legs 6 of the profile 3 is fixedly connected to a leg 8 of an angle profile 9, the other leg 10 extends spaced above the profile 3 and a U-profile 11 on the side facing away from the car 1 holds. On the U-profile 11 12 cooperating with both vertical guide rails rollers 13 are mounted and attached to one end of ropes 14 whose other end is fixed to a counterweight 15. The cross-sectionally T-shaped guide rail 12 is with the interposition of a holding profile 16 with a web 17 of a designed as a double-T carrier vertical support 18th connected, wherein the foot 19 of the guide rail 12 is fixed parallel to the web 17 of the vertical support 18 extending by means of clamping claws 20 on the welded to the vertical support 18 holding profile 16. The pointing in the direction of the car 1 web 21 of the guide rail 12 is guided both with its parallel longitudinal sides and the front side between the rollers 13. Since this type of storage is present on both sides of the cabin 1, it has degrees of freedom only in the vertical direction.

On the guide rail 12 opposite side of the vertical support 18 guide means 22 are provided for supporting the counterweight 15 in the corresponding U-shaped recess 23 of the vertical support 18, wherein the guide means 22 fixed to the opposite flanges 24 of the vertical support 18 angle profiles 25 and to the counterweight 15 mounted guide rollers 26 include. The tips of the fixed with clamping claws 27 on the flanges 24 of the vertical beam 18 angle sections 25 point in the direction of the counterweight 15 and are arranged in the middle. The guide rollers 26 are aligned such that their running surfaces 28 roll on the associated legs 29 of the angle section 25.

At the upper end of the two vertical support 18, a console 30 is arranged on which a traction sheave 31 is mounted, which is driven by a motor 32 with the interposition of a transmission 33. Starting from the counterweight 15, the cable 14 arranged on the left side of the car 1 runs via a first deflecting disk 34 via the traction sheave 31 and one below the traction sheave 31 and the first one Deflection pulley 34 arranged second deflecting pulley 35 to the U-profile 11 to which it is attached. Depending on the lifting capacity of the elevator, of course, several cables 14 can follow this course. In the present embodiment, three adjacent ropes 14 are provided. The ropes 14 on the right side of the cabin 1 are guided, starting from the associated counterweight 15, to a third deflection pulley 36 and from there via the traction sheave 31 and a downstream fourth deflection pulley 37 and a fifth deflection pulley 38 to the cabin-side attachment. The arrangement of all pulleys 34, 35, 36, 37, 38 to the traction sheave 31 is selected such that the ropes 14, the traction sheave 31 uniformly enclose at a certain angle, on the one hand to prevent slippage of the ropes 14 and on the other a uniform drive To ensure the cabin 1.

To protect against the weather, especially moisture, a hood 39 is arranged on the console 30, which spans all drive parts 40 of the elevator. The hood 39 is connected on both sides of the cabin 1 with housings 41 in which the ropes 14 extend and the vertical support 18 and the guide rails 12 and the counterweights 15 are received and extending over the entire height of the vertical support 18. In addition, over the height of the cabin 1 on both sides extending protective housing for receiving the profiles 3 of the frame 4 are provided. For coupling the car 1 with the guide rail 12, the protective housing 42 has a passage 43 for the profile 3 of the frame 4 associated leg 8 of the angle section 9, which has a slot 44th of the housing 41 protrudes. The passage 43 is formed between two projections 45 of the protective housing 42 and has an elliptical shape whose large diameter extends along the height of the car 1. The two projections 45 extend through the slot 44 of the housing 41. For sealing 41 V-shaped mutually aligned sealing lips 46 are provided on both sides of the slot 44 of the housing, which bear against the projections 45 of the protective housing 42. Due to the elliptical shape of the passage 43, the sealing lips 46 are located above and below the passage 43 in mutual abutment and otherwise follow the geometry of the projections 45, so that the ingress of water in both the housing 41 and in the protective housing 42 is effectively prevented ,

In order to provide electrical equipment within the cabin 1 with voltage and to accomplish the control of the elevator, electrical cables 47 are disposed in the housing 41 provided on the left side of the cabin 1. These electric cables lead to a console 30 and the other through the slot 44 of the housing 41 and the passage 43 of the protective housing 42 in the cabin 1. On the right side of the cab 1, a tensioning cable of a safety gear 48 is arranged in a known manner acting on the guide rails 12.

To release the cooperating with the vertical beams 18 safety gear 48 is on both sides of the car 1, a wire rope 49 is fixed on the one hand to the respective counterweight 15 and the other bottom side of the car 1. The wire ropes 49 extend below the associated vertical support 18 in a pit and each support a pulley 50 with a tension weight 51st

LIST OF REFERENCE NUMBERS

1.

cabin

Second

door

Third

profile

4th

frame

5th

Footbridge of 3

6th

Thighs of 3

7th

Outer wall of 1

8th.

Thighs of 9

9th

angle section

10th

Thighs of 9

11th

U-profile

12th

guide rail

13th

role

14th

rope

15th

counterweight

16th

retaining profile

17th

Footbridge of 18

18th

vertical support

19th

Foot of 12

20th

clamping shoe

21st

Footbridge of 12

22nd

guide means

23rd

Recess of 18

24th

Flange of 18

25th

angle section

26th

leadership

27th

clamping shoe

28th

tread

29th

Thighs of 25

30th

console

31st

traction sheave

32nd

engine

33rd

transmission

34th

first deflection pulley

35th

second deflection pulley

36th

third deflection pulley

37th

fourth deflection pulley

38th

fifth deflection pulley

39th

Hood

40th

driving part

41st

casing

42nd

housing

43rd

passage

44th

slot

45th

head Start

46th

sealing lip

47th

electric cable

48th

safety gear

49th

Wire rope

50th

idler pulley

51st

tension weight

52nd

Front door

53rd

balcony

Claims (27)

1. Elevator with a cable-driven car (1), to which vertical guide rails (12) are allocated, characterized in that the cables (14) are arranged on both sides of the car (1), each in a housing (41), and are acted upon by a common driving wheel (31).
2. Elevator according to Claim 1, characterized in that the cables (14) are coupled on each side of the car (1), first to the car (1) and second to a counterweight (15).
3. Elevator according to Claim 2, characterized in that the counterweight (15) and the car (1) are located on opposite sides of a vertical carrier (18) holding the guide rails (12).
4. Elevator according to Claim 3, characterized in that 2. each vertical carrier (18) is formed as a double-T carrier and arranged in the housing (41).
5. Elevator according to Claim 3 or 4, characterized in that the vertical carriers (18) are provided on their upper ends with a girder (30) for supporting the driving wheel (31) and also several deflection rollers (34, 35, 36, 37, 38) for the cables (14), with the girder (30) extending like a bridge between the two vertical carriers (18).
6. Elevator according to Claims 5, characterized in that a motor (32) driving the driving wheel (31) under intermediate connection of a driving gear (33) for the driving wheel is mounted on the girder (30).
7. Elevator according to Claim 5 or 6, characterized in that the girder (30) carries control electronics.
8. Elevator according to one of Claims 3 to 7, characterized in that the vertical carriers (18) are fixed with the end opposite the girder (30) in a shaft pit.
9. Elevator according to one of Claims 3 to 8, characterized in that the vertical carriers (18) are connected to each other by means of several crossbars at a distance to each other.
10. Elevator according to one of Claims 3 to 9, characterized in that the connecting piece (17) of each vertical carrier (18) is aligned parallel to the car (1) and carries the guide rails (12) on the side facing the car (1).
11. Elevator according to one of Claims 3 to 10, characterized in that the flanges (24) feature guide means (22) on the side of the vertical carrier (18) opposite the guide rail (12), in order to support the counterweight (15) in the corresponding U-shaped recess (23) of the vertical carrier (18).
12. Elevator according to Claim 11, characterized in that the guide means (22) are formed as angular profiles (25), which are fixed opposite the flanges (24) and on which guide rollers (26) fixed to the counterweight (15) are supported.
13. Elevator according to one of Claims 1 to 10, characterized in that the guide rail (12) with a T-shaped cross section is fixed to the connecting piece (17) of the vertical carrier (18) under intermediate arrangement of a holder profile (16), such that its foot (19) runs parallel to the connecting piece (17) of the vertical carrier (18) and its connecting piece (21) guided between the car-side rollers (13) points in the direction of the car (1).
14. Elevator according to Claim 13, characterized in that the rollers (13) are supported on a U-profile (11), which is connected via an angular profile (9) to a frame (4) of the car (1).
15. Elevator according to Claim 14, characterized in that the frame (4) is assembled from profiles (3) with U-shaped cross sections, with the profiles (3) extending over the height of the car (1) pointing with their legs (6) in the direction of the associated vertical carrier (18) and with one leg (6) of the profile (3) being connected to one leg (8) of the angular profile (9), whose other leg (10) holds the U-profile (11).
16. Elevator according to one of Claims 1 to 15, characterized in that a protective housing (42), which extends over the height of the car and which covers the corresponding profiles (3) of the frame (4) and which features a passage (43) for the legs (8) of the angular profile (9) that is allocated to the corresponding profile (3) and that passes through a slot (44) of the housing (41) that holds the associated vertical carrier (18), is arranged on both sides of the car (1).
17. Elevator according to Claim 16, characterized in that the passage (43) is formed between two projections (45) of the protective housing (42), which pass through the slot (44) of the housing (41).
18. Elevator according to Claim 17, characterized in that the housing (41) carries sealing lips (46), which are aligned in a V-shape relative to each other and which contact the projections (45) of the protective housing (42), on both sides of the slot (44).
19. Elevator according to one of Claims 1 to 18, characterized in that within the corresponding housing (41) of one guide rail (12) there are electric cables (47) and within the other guide rail (12) there is a trigger device for a safety catch (48).
20. Elevator according to Claim 19, characterized in that the electric cables (47) project through the slot (44) of the housing (41) and the passage (43) of the protective housing (42) into the interior of the car (1).
21. Elevator according to one of Claims 1 to 20, characterized in that the driving wheel (31) and the deflection rollers (34, 35, 36, 37, 38) are covered by a hood (39).
22. Elevator according to one of Claims 1 to 21, characterized in that a wire cable (49) is fixed, first, to the corresponding counterweight (15) and, second, to the car (1) on both sides of the car (1), with the wire cable (49) running underneath the associated vertical carrier (18) and holding a deflection roller (50) with a tension weight (51).
23. Elevator according to one of Claims 1-24, characterized in that the car (1) and/or the area covered by the hood (39) are connected to a heating and/or cooling system for climate control.
24. Elevator according to one of Claims 1-23, characterized in that a balcony (53) is arranged between an outside door (52) of the elevator and a building in the area of the floor of each story.
25. Elevator according to Claim 24, characterized in that several balconies are connected to one another by means of a skeleton.
26. Elevator according to Claim 25, characterized in that the skeleton is free-standing or fastened to the building and/or the vertical carriers (18).
27. Elevator according to Claim 24, characterized in that the balconies (53) are arranged on the vertical carriers (18).

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