EP2331444A2

EP2331444A2 - Tractive device for an elevator system

Info

Publication number: EP2331444A2
Application number: EP09809059A
Authority: EP
Inventors: Volker Fritz
Original assignee: ELT Electronic Lift Thoma GmbH
Current assignee: THOMA AUFZUEGE GmbH
Priority date: 2008-12-18
Filing date: 2009-12-17
Publication date: 2011-06-15
Anticipated expiration: 2029-12-17
Also published as: CA2738594C; JP5578477B2; US20110266413A1; US20110232226A1; CN102232047B; WO2010069571A3; WO2010069572A1; AU2009328561B2; ES2461915T3; CA2738595A1; RU2011112041A; EP2358625B1; US8991560B2; AU2009328553A1; ES2397517T3; US20120037459A1; CA2738594A1; JP2012512792A; EP2356056B1; AU2009328562B2

Abstract

The invention relates to a tractive device (208) for an elevator system (103), which can be arranged in a shaft scaffold (102) or a lift shaft (100) and serves to accommodate a load-receiving means (200) which is moved up and down in the shaft scaffold (102) or the lift shaft (100) by means of at least one drive shaft (204) connected to a drive engine (126) and mounted to the shaft scaffold (102) or on the lift shaft (100) and by means of carrying means, especially a tractive device (208). The aim of the invention is to produce the shaft scaffold and the corresponding drive device for an elevator system in a simple and cost-effective manner while ensuring optimum use of space. According to the invention, this aim is achieved by the fact that the tractive device (208) is designed as a pulley block (209) and provided with two or more, particularly four, deflection disks (206, 212, 214, 219), the axes of which are arranged one beneath the other in a plane that extends approximately vertically, wherein at least one deflection disk (206) is mounted in the lift shaft or on the shaft scaffold (102) above the elevator system (103), another deflection disk (219) is arranged beneath the elevator system (103) in the lift shaft or on the shaft scaffold (102) and one or several, especially two, deflection disks (212, 214) are mounted on a side element (202) of the load-receiving means, essentially a drive platform (200).

Description

applicant:

Electronic Lift Thoma GmbH Schoenberger Weg 6 - 10 60488 Frankfurt am Main

Zugmitteleinrichtung for an elevator system

Zugmitteleinrichtung for an elevator system that can be arranged in a shaft scaffold or a shaft and serves to receive a lifting device, which is connected via at least one connected to a drive motor, mounted on the shaft frame or on the shaft drive shaft and support means, in particular a traction means in the shaft scaffolding or driving - shaft is moved up and down.

There are already generally simplified elevator systems for the disabled known. These are mainly used in private residential areas for the barrier-free transport of persons with disabilities and are known in common usage under the term "home lift".

In the absence of a harmonized European standard, which has hitherto been available only in the form of prEN 81-41: 2007 as draft for examination and public opinion, for example in Germany following the requirements of Directive 2006/42 / EC - simplified Machinery Directive called - manufactured and installed. This guideline allows z. Example, by using a Todmannsteuerung, d. H. the lift can only be moved as long as an operating button is pressed manually, at a maximum operating speed of 0.15 m / s and other measures to dispense with a cabin door. Furthermore, the Machinery Directive allows reduced over- (shaft heads) and underpasses (shaft pits) to execute.

The shelters required for the maintenance and inspection of the facilities are temporarily made. For elevator systems of this kind, as a rule, up to a delivery height of 3 m, there is no safety-related acceptance by means of a if the manufacturer has appropriate manufacturer's certificates. The lift height is the travel distance that the platform can cover at maximum.

Simplified elevator systems of this type can be used in lift shafts, which i. d. R. bricked or concreted are mounted. In most applications, however, these systems are delivered with a hoistway scaffold. This can be mounted as a load-bearing or self-supporting shaft scaffolding indoors or outdoors. The load-bearing shaft framework con- sists of posts or longitudinal struts and bars in the form of steel profiles, usually hollow steel sections. In order to create a barrier that is closed at least over the travel path, shaft scaffolds are often lined with glass, façade panels or other material.

As a drive system mainly spindle drives and hydraulic drive systems are offered on the elevator market. Here, the drive spindle or the hydraulic ram and the guide system are mounted on a side wall or the rear wall. The elevator platforms are guided cantilevered on one side as a "backpack system". The drive motor or the hydraulic unit is located either on the drive side behind a veneer (spindle drives) or outside the elevator shaft (hydraulic units).

In both drive systems, a side or rear wall is installed by the required technology (drive spindle, hydraulic ram, guide rails, etc.). This wall side can, if architecturally desired, be clad. In shear and crushing hazards by the driving motion such a wall cladding is mandatory. With glass elevators, the resulting reduced transparency is distracting.

The clad wall side can also not be used for a possible car access and requires additional space. In addition, "backpack systems" in comparison to centrally suspended systems have poorer handling characteristics, which can be achieved, for example, by stick-slip effect. and resulting car vibrations during travel. Among other things, this leads to higher noise emissions, which in homes lead to impaired living comfort.

Furthermore, an elevator installation with at least two stops from EP 1 741 660 A1 is known which has a drive motor with a vertically extending drive axle and a traction sheave and carrying means fastened thereto. The elevator system is equipped with an elevator platform with a traveling frame, which is carried by the support means and moved up and down. The support means for the elevator platform run, inter alia, diagonally across the corner and on both sides of the elevator system, so that a lot of space is required for the drive device. With a transmission ratio of 2: 1 or greater, additional space is needed at the top or bottom shaft end. This arrangement also requires additional space for the pulleys above or below the cabin. Furthermore, only cables, usually steel cables, can be used as suspension means, since the suspension elements must be bent at least twice by 90 ° about the cable axis. In addition, more than two support means are required to accommodate large loads. The known system always needs a counterweight. As a result, additional space in the shaft cross section is required. Such a drive device is complicated, complicated and therefore expensive to manufacture.

In the elevator installation according to US Pat. No. 6,035,974, the drive motor with the horizontally extending drive shaft is located above the elevator platform and the suspension elements run on both sides of the opposite side parts of the elevator platform. For the arrangement of the guide system, the suspension means and the two counterweights a lot of space is required. The arrangement of access to the long sides of the platform is excluded.

The invention has for its object to produce the shaft scaffold and the associated drive device for an elevator system in a simple and cost-effective manner with optimal space utilization. The object is achieved in that the Zugmitteleinrichtung is equipped as a pulley with two or more, especially four, deflecting discs, whose axes are arranged on an approximately vertical plane with each other, wherein at least one deflection pulley in the shaft or on the shaft frame above the Elevator installation, another deflection plate below the elevator installation in the lift shaft or at the shaft scaffold and one or more, in particular two, deflection disks are mounted on a side element of the load suspension device, in particular the travel platform. Since the device, which is designed as a traction mechanism and operates on the principle of the flap mechanism, is equipped with two or more deflecting pulleys whose axes are arranged on an approximately vertical plane with each other, the traction mechanism can be placed in a very small space between the platform and the shaft wall, especially in the near area of the side parts of the platform. Thus, the surface of the platform can be optimally designed and chosen very large. One or more, in particular two, of the fixed deflecting disks in the driving shaft are connected to the drive shaft (s) and move the load receiving means up and down.

This is achieved in that an anchorage for the traction means of the pulley in the shaft or on the shaft scaffold above the elevator installation and a further anchorage for the traction means of the pulley is connected below the elevator installation in the shaft or on the shaft framework. The anchorages are space-saving in the same vertical plane as the pulleys. In contrast to conventional systems so the traction means must not be wound on a drum or connected to a counterweight.

It is advantageous that the pulley is designed as a factor pulley and two pulleys against close to two side elements of the load-carrying means, in particular a driving platform, are provided. Further, it is advantageous that the pulley is designed as a factor pulley and two pulleys against close to two side elements of the lifting device, in particular a driving platform, are provided and that at least two pulleys in the area each outside of the load-receiving means, in particular the car or the driving platform the elevator installation, are provided diagonally opposite one another in two corner regions of the elevator installation.

In a further embodiment of the invention, it is advantageous that the corner region is formed by two approximately at an angle converging walls of the driving shaft and a side member, wherein the side member is arranged such that it forms a free space together with the walls, which is such a large area, in particular triangular , is formed so that in the corner region of the vertically oriented pulley can be arranged.

It is also advantageous that the cross section of the shaft frame and / or the load receiving means, in particular the driving platform, oval, round, polygonal, rectangular preferably square and the ends of the drive shafts associated suspension means of the traction means are arranged diagonally opposite and in the immediate Close and parallel to the corner regions forming, vertically extending longitudinal sides of the shaft framework.

Since the suspension elements, the guide system and all other technical components are provided exclusively in the lateral area, in particular in the corner area, of the shaft framework, a very large clearance is created in the central area of the shaft framework for the load handling device, in particular for the traveling platform.

For this purpose, the corner regions of the driving platform, which are adapted to the inner cross section of the shaft frame, cut off in an advantageous manner, so that by the two in the corner area running along the long sides of the shaft frame and the opposite end edge of the platform when this has a rectangular or square base, a triangular in the view is created from above, in which the support means, the guide system and the braking system for the driving platform can be optimally accommodated. Since the triangular area requires very little space to place the suspension elements at this point, the access openings to the driving platform are also optimally enlarged. Overall, you get in the smallest space optimal space utilization for the required technology of the entire system. In this way, more than 70% of the installation surface of the system can be made available for the driving platform. The use of a square-shaped platform also simplifies the planning of an architect significantly, since he can easily integrate such a building in a building. In addition, an optimal access to the driving platform is created by the device according to the invention on all four sides at the stops. For the use of the elevator system by a wheelchair user, the square basic shape of the platform provides an optimal turning possibility. This movement takes place in a circle, so that the beveled corners of the cabin walls are not needed.

For this purpose, it is advantageous for a drive shaft or two drive shafts aligned coaxially to one another to extend between the oppositely lying corner regions of the shaft frame and to be operatively connected to the drive motor, or for each drive shaft to be operatively connected to one drive motor each. The drive shaft may advantageously be formed as a single-piece continuous drive shaft or in two parts or may also be provided two drive shafts. Advantageously, the one-piece drive shaft is supported at its two outer ends on the shaft frame or on the walls of the driving shaft. If the drive shaft is split in two, it can be supported on the outer end of the shaft framework or on the walls of the driving shaft and supported with its inner ends on a arranged in the upper region of the shaft frame traverse, which also serves to accommodate the drive motor. Since a clearance is created in the two opposite corner areas, as already mentioned, the suspension elements with the associated deflecting or traction sheaves, the guide system of Fahrplatt- form as well as in the corner area or in the framework corners of the shaft framework advantageously and space-saving. Furthermore, this measure also ensures that the bending moments acting on the drive shaft can be kept very small so that the drive shaft does not need to be dimensioned as strongly as before. As a result, material costs can also be saved.

An additional possibility, according to a development of the invention, that the drive motor has an output shaft whose axis of rotation is arranged approximately at right angles to a rotational axis of the drive shaft of the support means, in particular traction means. This gives optimum space utilization for the drive units.

Furthermore, it is advantageous for the load-receiving means to be a traveling platform which has at least two side elements which are upright in the end edge region and / or in the corner region of the driving platform and which are connected to the suspension elements.

It is also advantageous that the suspension element is arranged between side elements of the platform and the longitudinal sides of the shaft framework forming the corner region. The advantageously placed side elements allow optimally large passage openings on all four sides of the drive platform. At the same time, they also serve as a protective device, since they cover the supporting means provided in the corner regions and protect persons located on the load-carrying means, in particular the platform, since they prevent them from coming into contact with the suspension elements.

It is also advantageous that the traction means is designed as a pulley and has one or more deflection pulleys and all axes of the deflection discs are arranged approximately on a vertically extending plane with each other. As a result, in a simple space-saving manner, the pulley can be accommodated in the corner area of the traveling platform and shaft frame. Of particular importance for the present invention that for the Zugmitteleinrichtung, in particular the pulley, chains, steel cables or timing belt can be used as traction means. The traction devices are only fixed in the end positions with releasable clamp holders, so that the previously necessary counterweights can be dispensed with in a space-saving and cost-saving manner. The use of timing belts has the advantage that they do not stretch even after prolonged use, have no slippage and can be used quietly. Furthermore, timing belts are resistant to various environmental influences such as very high or low temperatures, solar radiation, moisture etc. and do not require maintenance.

Furthermore, it is advantageous that the pulley has a transmission ratio of 1: 1, 2: 1, 3: 1, 4: 1, 5: 1 or greater. The advantageous use of a pulley with the appropriate gear ratio and the execution of a weight-reduced lifting device in the form of a platform, consisting of a bottom and a surrounding frame, also make it possible to dispense with counterweights and still keep the drive power low. With an outside dimension of the driving platform of approx. 1.4 x 1.4 m and the corresponding gear ratio of 2: 1, a low driving speed and the low mass of the driving platform, the drive motor achieves a drive power of only approx. 2 kW , Advantageously, a frequency control can be used and thereby generates the three phases required by the drive, via the frequency control and the starting current can be reduced. The elevator system can thus be connected to conventional sockets.

It is also advantageous that the load-receiving means, in particular the traveling platform, is guided in the shaft frame by means of at least one guide, in particular a guide rail arranged on the shaft frame, the guide being at least in a corner region of the shaft frame and / or in the immediate vicinity of the suspension element, in particular the pulley, is arranged. Furthermore, it is advantageous that the drive motor is arranged with the drive shaft in a shaft head of the shaft framework or in a shaft pit.

It is also advantageous that one or more access openings on the platform can be closed by means of cabin walls and / or doors.

An additional possibility is, according to a development of the invention, that the upright side elements of the driving platform are arranged in the corner region of the driving platform such that a free access opening to the driving platform is present on at least four sides. In this way, a shaft scaffolding designed in this way with the traveling platform adapted to the shaft scaffold can also be easily attached to existing buildings free-standing or subsequently integrated into the building without major alterations.

If desired, the access openings on the drive platform can be provided with a cabin wall when not needed. There are no higher demands on the strength of this cabin wall. The cabin wall can be made filigree so that a glass wall can be used.

If the cabin walls are omitted, or if these are made of glass, and if the shaft framework is also provided with a glass cladding on all sides, this results in an architecturally appealing design with the maximum possible transparency.

According to another embodiment, it is advantageous that the shaft framework consists of at least two diagonally opposite, vertically extending posts on which the support means guide rails and at least one upper and one lower deflection plate are arranged directly or indirectly and that the shaft framework and / or the diagonally opposite, vertically extending posts and / or the traverse in the corner region of the shaft framework middle or directly attached to at least one inner wall of the driving shaft is closing. This gives a very inexpensive elevator system that can be easily installed in a lift shaft.

According to another embodiment, it is advantageous that the Zugmitteleinrich- device for an installable in the shaft scaffold lift system, which can be arranged free-standing and / or in a lift shaft and serves to receive a lifting device, which is mounted on at least one connected to at least one drive motor on the shaft frame Drive shaft by means of support means, in particular a traction means, in the shaft frame up and down is moved. For this purpose, the traction means as pulley, in particular factor pulley, with two or more, in particular four, deflecting wheels, equipped whose axes are arranged approximately on a vertically extending plane with each other, wherein at least one deflection pulley in the shaft or in the shaft frame above the elevator system, a ne further deflection pulley below the elevator installation in the lift shaft or in the shaft frame and one or more, in particular two, deflection pulleys are mounted on the shaft frame, wherein an anchorage for the traction means of the pulley in the lift shaft or in the shaft frame above the elevator installation and another anchorage for the traction means of the pulley is connected below the elevator system to the anchorage in the shaft or in the shaft framework.

It is also advantageous that the suspension element, in particular the toothed belt, is bent only in one direction in all deflecting disks. As a result, the toothed belt also needs to be provided with teeth on only one side, so that the service life of the toothed belt can be substantially increased. Instead of the toothed belt, as already mentioned, also differently trained traction means z. B. V-belts are used.

A cost saving can be achieved also by the fact that the two diagonally opposite guide rails, similar to the traverse, are fastened directly and / or with the aid of a holder to the shaft walls or to the inner wall of the driving shaft. Further advantages and details of the invention are explained in the patent claims and in the description and illustrated in the figures. Showing:

Figure 1 is a partial perspective view of the upper part of the shaft frame for a lift system, which can be arranged free-standing and / or in a lift shaft.

Fig. 2a, the shaft frame with arranged in the upper region

Drive device as a schematic sectional view along the line A - A of FIG. 5;

FIG. 2b shows a schematic perspective view of the shaft frame according to FIG. 2a; FIG.

3 shows a longitudinal section of the shaft frame along the drive shaft.

4 shows a perspective view of the driving platform with side parts arranged opposite one another;

5 shows a view of the shaft frame with drive device in the view from above according to FIG. 1;

6 shows a perspective view of a further exemplary embodiment of the driving platform with side elements and a cable pulling device arranged in the corner region of the traveling platform;

7 shows a schematic representation of the cable pull device according to FIG. 6 in side view; 8 shows a further embodiment of the cable pulling device according to FIG. 6 in side view;

9 is a partial view of the cable pulling device with a toothed belt, which is guided over an upper drive pulley and a lower deflection pulley.

10 is a view of another embodiment of the shaft frame with drive device in the top view of FIG. 1st

11 is a view of another embodiment of the shaft frame with drive device in the top view of FIG. 1st

In the drawing, a well structure 102 is shown for an elevator installation 103, which can be arranged free-standing or in a drive shaft 100. In the driving shaft 100, the shaft frame 102 can be arranged free-standing or be supported by means of connecting elements on not shown in the drawing side walls of the driving shaft 100.

According to Fig. 2a, a floor ceiling 116 is supported on a lower section 104 of the shaft frame 102 from. For this purpose, there is an opening 118 in the floor ceiling 116, by means of which the load receiving means, in particular a traveling platform 200 (FIG. 4), is moved vertically upwards and downwards by means of suspension elements 208 (FIG. The lower section 104 of the shaft frame 102 stands with the aid of adjustable feet 112 in a shaft pit 114.

An upper section 106 of the shaft frame 102 is located above the floor ceiling 116 and is referred to as shaft head 124. In this section according to the embodiment shown in Fig. 2a, the drive assembly with a drive motor 126 and a transmission, in particular worm gear 125, is shown. The drive motor 126 with a drive The shaft 204 may be arranged in the shaft head 124 of the shaft frame 102 or in the shaft pit 114.

The upper section 106 of the elevator shaft frame 102 is arranged on the floor ceiling 116. In this way, the shaft frame 102 from floor to floor or, with a correspondingly large opening, be arranged as a continuous construction. An entire shaft frame height 120 can span several floors, with a delivery height 122 can also be more than three meters.

According to FIG. 1, a load-receiving means, in particular a traveling platform 200, is arranged in a height-adjustable manner in the shaft frame 102. The cross section of the shaft frame 102 and / or of the load receiving means, in particular of the traveling platform 200, is oval or polygonal, preferably of square design.

The load-receiving means 200 or the drive platform of square design in the exemplary embodiment has at least two in the end edge region and / or in a corner region 105 of the travel platform 200, two diagonally opposite upright side elements 202, which are connected to support means 208. The suspension element 208 can be a cable arrangement or a pulley arrangement operating on the principle of a pulley 209.

With the help of the pulley 209, the amount of force to be applied, z. For moving the elevator load. The pulley consists of fixed and / or loose pulleys or rollers and a traction device or a rope. The toothed belt train follows the same principle, except that a toothed belt is used instead of a rope. In the case of the cable pull or pulley 209 used here, two fixed anchors 216 and 218 are used according to the invention. However, the decisive factor is always the number of load-bearing ropes on which the load is distributed. In the illustrated basic form of the pulley tension σ is the same at each point of the rope. The weight F _{L of} the mass is therefore uniform to all n-compounds distributed between the lower and upper rollers and the carrying ropes. The tensile force at the end of the rope is proportional to the tension in the rope and thus: F _z = F | / n = mg / n.

The pulley 209 according to the invention may have a transmission ratio of 1: 1, 2: 1, 3: 1, 4: 1, 5: 1 or greater. In this way, among other things, a counterweight can be dispensed with.

The two diagonally opposite side elements 202 are connected to one another at their upper end via an upper cross member 203. Apart from the two diagonally opposite side elements 202, the load-receiving means, in particular the traveling platform 200, has no further side parts. In this way, you get four free access openings 128. According to another embodiment of FIG. 6, the driving platform in addition to the two side members 202 additional z. B. glass, metal or formed from a plastic material side walls.

The load-receiving means, in particular the traveling platform 200, is guided vertically in the shaft frame 102 with the aid of at least one guide, in particular a guide rail 220 (FIG. 7) arranged on the shaft frame 102. The guide is arranged at least in a corner region 105 (FIG. 5) of the shaft frame 102 and / or in the immediate vicinity of the suspension element 208, in particular the pulley block 209.

For this purpose, the support frame 202 is provided with vertically extending recesses-having guides 222 which are guided on the guide rail 220 (FIG. 7) arranged on the support frame 202 or on the side element 202. If the suspension element 208 or the drive axle breaks, an emergency brake device 224 is automatically activated, which is fixedly mounted on the support frame 202 (FIGS. 7, 9).

In a square, rectangular load-receiving means, in particular the driving platform 200, the corner edges of the traveling platform are cut off, so that the front edges of the driving platform 200 with two adjacent, converging in a corner longitudinal sides 109, 111 and 113 and 115 with the opposite, oblique front edge of the driving platform 200 form a triangular cutout ie the corner region 105 which is so large that the support means 208 can be accommodated in the free space. The other cross-sectional shapes are handled in a similar way.

As is apparent from FIGS. 1 and 5, the drive motor 126 is arranged on a cross member 127 which is located in the upper shaft head 124. The traverse 127 is arranged between the two diagonally opposite corner regions 105 of the shaft frame 102 and connected thereto. However, it is also possible to firmly connect the traverse 127 with the corner regions 105 of the wall elements of the driving shaft 100. At least one horizontally extending drive shaft 204 or two horizontally extending drive shafts are connected to the drive motor 126 with the aid of the worm gear 125. Between the opposite corner regions 105 of the shaft frame 102, a drive shaft or two coaxial with each other aligned drive shafts 204 may extend, which are in operative connection with the drive motor 126. Furthermore, it is possible for each drive shaft to be operatively connected to one drive motor each. Also, the drive motor may be arranged at any other angle to the drive axle or the drive axles or at a distance from the drive axle.

The traverse 127 and the drive shaft 204 intersect each other at right angles and thus extend in each case into the opposite corner regions 105. As already mentioned, they are firmly connected to the shaft frame 102 or to a wall of the driving shaft 100 or stored there. By connecting the traverse 127 and the drive shaft 204 on the shaft frame 102, the torsional stiffness of the shaft frame 102 is substantially improved.

The drive motor 126 has an output shaft whose rotation axis 117 is arranged approximately at right angles to a rotation axis 119 of the drive shaft 204 of the suspension element, in particular traction device 208. The support means 208 associated with the ends of the drive shafts 204 extend in the immediate vicinity of and parallel to the vertically extending longitudinal sides 109, 111, 113, 115 of the shaft frame 102 forming the corner regions and / or to a longitudinal central axis 107.

Furthermore, each one support means 208 is arranged to save space in the two diagonally opposite corner regions 105. The support means 208 are each provided between a side element 202 of the traveling platform 200 and the approximately triangular-shaped corner region 105 forming longitudinal sides 109, 111, 113, 115 of the shaft frame 102 or the walls of the driving shaft 100.

The shaft frame 102 consists of four vertically aligned longitudinal sides 109, 111, 113 and 115 which are aligned at right angles to one another. Each longitudinal side 109, 111, 113 and 115 consists of a rectangular frame with posts or longitudinal struts 129, which are connected via a plurality of cross struts Latches 201 can be firmly connected to each other. Depending on the embodiment, the central transverse strut 201 can be dispensed with so that each longitudinal side 109, 111, 113 and 115 also has a free access opening 128 to the load receiving means, in particular to the traveling platform.

In the embodiment according to FIG. 1, the access opening 128 can be closed by means of a pivotably arranged door 123. Likewise, one or more access openings 128 can be closed by means of a shaft lining wall or a door 123. The door 123 is advantageously arranged on the shaft frame 102. But it can also be arranged additional doors on the platform or platform on a driver's cab, not shown here.

The traveling platform 200 is preferably of square design and the support means 208 associated with the ends of the drive shafts 204 extend in the immediate vicinity of and parallel to the vertically extending longitudinal sides 109, 111, 113, 115 of the shaft structure 102 forming the corner regions. The Zugmitteleinrichtung 208 operates on the principle of a pulley and is therefore hereinafter referred to as pulley 209. It has one or more deflection pulleys 206, 212, 214, 219.

The support means 208 arranged on both sides of the travel platform 200 run from the end suspension or anchoring 216 provided in the shaft head 124 to the wall of the drive shaft 100 or the shaft frame 102 via the deflection disk 212 to the drive pulley 206 and from there further via the shaft 104 located in the shaft pit or on the wall of the driving shaft 100 or on the shaft frame 102 by means of anchoring 218 fixedly connected deflecting plate 219. From there, the support means 208 continues over the on the side member or support frame 202 arranged deflecting pulley 214 to the end suspension or anchoring 218, either on Schachtge- scaffold 102 or in the pit 114 is attached.

The drive pulley 206 and the individual deflection disks 212, 214, 219 all have the same diameter, so that no different bending loads of the suspension elements occur. The suspension elements 208 are bent only in the same direction, i. h., They are not subject to a bending but only a deflection. In the exemplary embodiment, the support means 208 are all bent in the clockwise direction. Viewed from the end suspension 218 in the direction of the floor ceiling 216, the support means in Fig. 7 experiences only a right bend. So that the support means do not rub against each other, z. B. the deflecting discs 212, 214 slightly opposite to the drive pulley and the fixed pulleys 219 of FIG. 8 are arranged slightly laterally offset.

All axes of the drive pulley 206 and the deflection pulleys 212, 214, 219 are arranged as shown in FIG. 7 approximately on a vertically extending plane with each other. As a result, in a simple space-saving manner, the pulley can be accommodated very well in the corner region of the travel platform 200 and shaft frame 102. The drive pulley 206 or the deflection pulleys 212, 214, 219 may be, for example, groove-shaped traction sheaves, sprocket or timing belt pulleys.

The illustration according to FIG. 9 shows a schematic side view. The support means 208 run via the drive disks 206 attached to the ends of the drive shaft 204 to the deflection disks 212, 214 of the deflection disk in the shaft pit 219 and to the end suspensions 216 and 218 located on the support frame 202. The suspension elements 208 used can be, for example, steel cables with and without plastic sheathing, toothed belt or steel chains.

The drive disk 206 or the drive disk 206 connected to the drive shaft 204 (FIG. 7) is mounted above the travel platform 200 in the drive shaft 100 or in the shaft frame 102 in the region of the shaft head 124 (FIG. Another deflecting plate 219 is mounted below the elevator installation 103 in the section 104 in the driving shaft or on the shaft frame 102. One or more, in particular two, deflecting disks 212, 214 are mounted in or on the side elements 202 of the driving platform 200.

The anchoring 216 for the traction means 208 of the pulley system 209 is in the elevator shaft 100 or on the shaft frame 102 above the elevator installation 103 and another anchoring 218 is connected to the traction means of the flat fence 209 below the elevator installation 103 in the elevator shaft 100 or in the shaft structure 102.

The anchoring 218 can, according to FIG. 9, each have two flat pieces 221, 225 held together by means of bolts, of which the flat piece 225 has a toothing. Between the flat pieces 221, 225, the support means 208 can be clamped. In this way, a bias of the traction means is achieved.

According to a further embodiment according to FIG. 10, deviating from the embodiment according to FIGS. 1 and 5, the shaft framework 102 can be made of at least at least two diagonally opposite, vertically extending in cross-section rectangular posts 226 exist. Due to their rectangular cross-section, the posts 226 can be connected very well in the corner region 105 of the shaft frame 102 directly or indirectly to at least one inner wall 227 of the driving shaft 100 and additionally stand on the floor of the driving shaft 100. It is also possible to dispense with the posts 226 if the guide rails 107 with holders 230 are fastened directly to the chess walls or to the inner wall 227 of the driving shaft 100.

Furthermore, the traverse 127 in the corner region 105 of the shaft frame 102 may be directly or indirectly connected to at least one inner wall 227 of the driving shaft 100 and, in particular with the aid of a holder 229, be attached to the inner wall 227 to save space.

At the post 226, the support means 208, guide rails 220 and at least one upper and one lower deflection pulley 206, 219 are arranged directly or indirectly.

The axis of rotation 117 of the drive motor 126 and the axis of rotation 119 of the drive shaft 204 close as shown in FIG. 5 and 10 an angle α of 90 °. However, if the cross-sectional area of the shaft frame 102 or the driving shaft 100 has a cross-sectional shape deviating from the rectangular cross-section, the angle α may be larger or smaller than 90 °.

According to a further Aufrührungsbeispiel according to FIG. 11, the guide rails 102 can be attached directly and / or with the aid of a holder 230 in the corner region 105 on the shaft walls or on the inner wall 227 of the driving shaft 100. As is apparent from FIGS. 7 and 11, the guide rail 220 is formed as a T-rail and the rail foot firmly connected to the shaft walls or with the inner wall 227 of the driving shaft 100. The rail web 220, which is designed as a T-rail, serves as a guide to the displaceable Recording the arranged on the support frame or side member 202 guide 222nd

LIST OF REFERENCE NUMBERS

100 driving shaft

102 shaft frame

103 elevator system

104 lower section

105 corner area

106 upper section

107 longitudinal central axis

109 long side

111 long side

112 adjustable foot

113 long side

114 pit

115 long side

116 floor ceiling

117 axis of rotation of the drive motor

118 opening

119 Rotation axis of the drive shaft

120 pit height

122 delivery height

123 door

124 shaft head

125 gearbox, worm gear

126 drive motor

127 traverse

128 access opening

129 posts, longitudinal strut

200 load-carrying equipment, driving platform

201 cross strut, bolt

202 supporting frame, side element

203 cross member

204 drive shaft 206 deflection pulley, drive pulley

208 supporting means, in particular traction means preferably cable pulling device for a pulley 209, in particular factor pulley 209 traction means, pulley

212 deflecting pulley

214 deflection pulley

216 anchoring, upper end suspension

218 Anchorage, lower end suspension 219 Deflection pulley

220 guide rail on the shaft frame 102

221 flat piece

222 Guiding on the driving frame 224 Emergency braking device 225 Flat piece, toothing

226 posts

227 inner wall

229 bracket

230 bracket

Claims

claims

1. Zugmitteleinrichtung (208) for an elevator installation (103), which can be arranged in a shaft frame (102) or a driving shaft (100) and for receiving a load receiving means (200) connected via at least one with a drive motor (126) , on the shaft frame (102) or the drive shaft (100) mounted drive shaft (204) and suspension means, in particular a Zugmitteleinrichtung (208), in the shaft frame (102) or in the lift shaft (100) is moved up and down, characterized in that the Zugmitteleinrichtung (208) as a pulley (209) with two or more, in particular with four deflection pulleys (206, 212, 214, 219), equipped, whose axes are arranged on an approximately vertical plane with each other, wherein at least one deflection plate ( 206) in the lift shaft or on the shaft framework (102) above the elevator installation (103), another deflection disk (219) beneath the elevator installation (103) in the lift shaft or on the shaft framework (102) and the like and one or more, in particular two, deflecting disks (212, 214) are mounted on a side element (202) of the load-receiving means, in particular traveling platform (200).

2. Zugmitteleinrichtung according to claim 1, characterized in that an anchoring (216) for the traction means of the pulley (209) in the shaft or on the shaft frame (102) above the elevator system (103) and a further anchoring (218) for the traction means of the flat pull (209) is connected below the elevator installation (103) to the anchorage (218) in the lift shaft or the shaft framework (102).

3. Zugmitteleinrichtung according to claim 1, characterized in that the pulley (209) is designed as a factor pulley and two pulleys against close to two side elements (202) of the lifting device, in particular a driving platform (200) are provided.

4. Zugmitteleinrichtung according to claim 1, characterized in that at least two pulleys (209) in each case an outer side of the lifting device, in particular the car or the driving platform (200) of the elevator system (103), diagonally opposite in two corner regions (105) of the elevator system (103) are provided.

5. Zugmitteleinrichtung according to claim 1, characterized in that the corner region (105) is formed by two approximately at an angle converging walls (227) of the driving shaft (100) and a side member (202), wherein the side member (202) is arranged such that it forms, together with the walls (227), a free space which is formed over such a large area, in particular triangular, that the vertically oriented pulley block (209) can be arranged in the corner area (105).

6. Zugmitteleinrichtung according to claim 1, characterized in that the cross section of the shaft frame (102) and / or the load receiving means, in particular traveling platform (200), oval, round, polygonal, rectangular preferably square and the ends of the drive shafts (204) associated support means (208) of the Zugmitteleinrichtung (209) are arranged diagonally opposite and in the immediate vicinity and parallel to the corner regions (105) forming, vertically extending longitudinal sides (109, 111, 113, 115) of the shaft frame (102).

7. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that extending between the opposite corner regions (105) of the shaft frame (102) the drive shaft or two coaxially aligned drive shafts (204) which are in operative connection with the drive motor (126) or that each drive shaft is in operative connection with one drive motor each.

8. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the drive motor (126) has an output shaft whose axis of rotation (117) approximately at right angles to an axis of rotation (119) of the drive shaft (204) of the support means, in particular traction means (208), is arranged.

9. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the load-receiving means (200) is a driving platform, the at least two in the front edge region and / or in the corner region (105) of the driving platform (200) upstanding side elements (202), which on the Supporting means (208) are connected.

10. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the support means (208) between the side members (202) of the traveling platform (200) and the corner region (105) forming the longitudinal sides (109, 111, 113, 115) of the shaft framework ( 102) is arranged.

11. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the Zugmitteleinrichtung (208) according to the principle of a pulley (209) is formed and one or more deflection pulleys (206, 212, 214, 219).

12. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that all the axes of the deflection pulleys (206, 212, 214, 219) are arranged on an approximately vertical plane with each other.

13. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the pulley (209) has a transmission ratio of 1: 1, 2: 1, 3: 1, 4: 1, 5: 1 or greater.

14. shaft frame according to one of the preceding claims, characterized in that the load-receiving means, in particular the traveling platform (200) by means of at least one guide, in particular a shaft frame (102) arranged guide rail (220) in the shaft frame (102) is guided, wherein the guide is arranged at least in a corner region (105) of the shaft frame (102) and / or in the immediate vicinity of the suspension element (208), in particular the pulley block (209).

15. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the drive motor (126) with the drive shaft (204) in a shaft head (124) of the shaft frame (102) or in a shaft pit (114) is arranged.

16. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the upright frame parts, in particular side members (202), the driving platform (200) in the corner region (105) of the driving platform (200) are arranged such that on at least four sides a free access opening (128) is present.

17. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that one or more access openings (128) on the platform (200) by means of cabin walls and / or doors can be closed.

18. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the shaft framework (102) consists of at least two diagonally opposite, vertically extending posts (226), in which the support means (208), guide rails (220) and at least one upper and one lower deflecting disc (206, 219) are arranged directly or indirectly.

19. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the shaft frame (102) and / or the diagonally opposite, vertically extending posts (226) and / or a traverse (127) in the corner region (105) of the shaft frame (102) means - Or directly to at least one inner wall (227) of the driving shaft (100) is connected.

20. Zugmitteleinrichtung according to any one of the preceding claims, characterized in that the guide rail (220) directly and / or by means of a holding tion (230) on the shaft walls or on the inner wall (227) of the driving shaft (100) is attached.

21 Zugmitteleinrichtung (208) according to any one of the preceding claims, characterized in that the support means (208), in particular the toothed belt, is bent in all deflecting only in one direction.