EP2291573B1 - Drive system for driving and guiding a wall element for a room partition system - Google Patents
Drive system for driving and guiding a wall element for a room partition system Download PDFInfo
- Publication number
- EP2291573B1 EP2291573B1 EP09765523.7A EP09765523A EP2291573B1 EP 2291573 B1 EP2291573 B1 EP 2291573B1 EP 09765523 A EP09765523 A EP 09765523A EP 2291573 B1 EP2291573 B1 EP 2291573B1
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- EP
- European Patent Office
- Prior art keywords
- drive
- carriage
- unit
- roller carriage
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012423 maintenance Methods 0.000 description 3
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- 125000006850 spacer group Chemical group 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000000638 solvent extraction Methods 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/635—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by push-pull mechanisms, e.g. flexible or rigid rack-and-pinion arrangements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/43—Motors
- E05Y2201/434—Electromotors; Details thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/684—Rails; Tracks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/688—Rollers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/32—Position control, detection or monitoring
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/40—Control units therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/61—Power supply
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/65—Power or signal transmission
- E05Y2400/656—Power or signal transmission by travelling contacts
- E05Y2400/658—Power or signal transmission by travelling contacts with current rails
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
- E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/20—Combinations of elements
- E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/142—Partition walls
Definitions
- the present invention relates to a drive system for driving and guiding a wall element, in particular for a room partitioning system, comprising a carriage unit, which is longitudinally movably guided in a guide rail, wherein the carriage unit comprises a roller carriage, which is arranged within the guide rail and has a drive unit which is arranged below the guide rail.
- Drive systems for driving and guiding a wall element for room dividing wall systems are well known.
- the drive systems have carriage units with respective drives, so that the carriage units can move automatically in the guide rail.
- carriage units are known with different configurations, which usually have a roller carriage, which is located within the guide rail, wherein at this a drive unit is mounted, in which at least the drive motor and optionally a transmission is added.
- a drive system for driving and guiding a wall element for a room dividing wall system is disclosed.
- a carriage unit is provided which is longitudinally movably received on rollers in the guide rail, wherein the rollers are driven by a drive unit.
- guide rollers are provided, the upper side of the roller carriage Carriage unit are guided in predetermined guideways within the guide rail.
- Complex guide geometries within the guide rail are required for the guide, which makes assembly, disassembly and maintenance considerably more difficult. Due to the upper-side arrangement of the guide device, it is necessary to arrange required pantograph and associated busbars laterally adjacent to the travel path of the carriage unit, whereby the design dimensions of the drive system are considerably increased.
- a drive system of a carriage unit for a room partition wall system which has a plurality of guide rollers and within the guide rail further guide means are required, which cooperate with the guide rollers.
- this structural design of the carriage unit which is taken longitudinally movable within the guide rail and used to process the wall elements, requires considerable space, so that the guide rail requires considerably larger dimensions.
- it is desirable to minimize the height dimension of the drive system so that an improved basic structure of the drive system and in particular the carriage unit is required.
- the EP 0953706 A1 describes a sliding stack wall, in which the drive motor is arranged below the running rail in a horizontal arrangement in the upper profile of the sliding wall. This will change the profile The glass plate is stuck and the engine is to record, very high, which affects the visual appearance of the partition and make it seem very clunky.
- the US 2006/0144529 shows the visible arrangement of a drive on a Faltschiebee, each one drive motor on one side or on both sides of the door leaf drives a friction wheel drive.
- the invention includes the technical teaching that a guide means is provided in the transition between the roller carriage and the drive unit, which cooperates with the guide rail for guiding the carriage unit.
- the invention is based on the idea that the basic structure of the carriage unit is formed from three components, namely from the roller carriage, which is received within the guide rail and guided in this, the guide device and the drive unit.
- the guide device is arranged between the roller carriage and the drive unit, wherein the cross section of the guide rail is C-shaped and thus forms a slot guide in the C-opening, through which the guide means extends and the Connection between the inner roller carriage and the outer drive unit forms. Due to this structural design of the carriage unit of the installation space is minimized, since the guide device does not have to be integrated within the box-like cavity of the guide rail.
- the guide device has at least one and preferably two guide rollers, which roll for guiding the carriage unit on laterally adjacent to the guide means guide surfaces. If the guide device has two guide rollers, the roller carriage is guided in the longitudinal direction of the guide rail. If the guide rail has a curvature or if the carriage unit passes through a branch, then the roller carriage can follow the course of the guide rail through the guide by means of the two guide rollers. The guide rollers roll against the guide surfaces which are formed on the guide rail and located in the lower area.
- the guide rail forms a box-like hollow profile with a C-shaped cross-section and consequently with a lower-side opening, through which the guide device extends.
- the carriage unit is rotatably mounted on the wall element, wherein the wall element may be guided by two carriage units in the guide rail, of which a carriage unit is driven.
- the second carriage unit only serves to guide the wall element within the guide rail without a drive function.
- the carriage units are therefore rotatably arranged on the wall element, so that the roller carriage can follow the curvature of the guide rail.
- the guide rails may have folding elements at the point of the switch, which in the manner of a rail switch can specify the direction of the drive of the carriage unit.
- a further embodiment of the carriage unit has a gutter extending between the roller carriage and the drive unit.
- a mechanical connection can be created to connect the drive unit with the roller carriage.
- extending through the guide means and the roller carriage at least two connecting elements on which the guide rollers are each rotatably received.
- a plurality of intermediate webs may be provided, on which also a rotatable mounting of the guide rollers is made possible.
- the connecting elements can likewise serve for the mechanical connection between the roller carriage and the drive unit.
- the roller carriage may consist of an upper part and a lower part, wherein the intermediate web extends as Anformung on the lower part in the direction of the drive unit.
- the connecting elements are screwed through a thread in the upper part of the roller carriage to add the upper part and the lower part of the roller carriage to each other, and to attach next to the rotatable receiving the guide rollers, the drive unit on the roller carriage.
- the roller carriage has at least one current collector, which cooperates with at least one associated and introduced in the guide rail power rail current transmitting to receive a recorded in the drive unit drive motor, which serves for moving the wall element in the guide rail.
- the busbars are mounted longitudinally within the guide rail inside and top side. Moves the roller carriage in the longitudinal direction of the guide rail, so a permanent power contact between the pantograph and the busbar can be maintained.
- the current collector serves both to transmit the power supply of the drive motor and to transmit the necessary control signals.
- the pantograph is over Guide pins received, wherein the guide pins are guided longitudinally movable in the connecting elements. By means of spring elements, the guide pins are brought spring-loaded against the busbars in contact.
- the pantographs are spring-biased twice to ensure double contact between each pantograph against an associated busbar.
- the fasteners thus take several functions. On the one hand, they serve to mount the upper part and the lower part of the roller carriage, and at the same time the connection between the roller carriage and the drive unit is made possible.
- the guide rollers of the guide means can be rotatably received on roller bearings on the connecting elements. In addition to these functions, the pantograph is at the same time received via the connecting elements in the roller carriage, so that the connecting elements act as central structural elements of the carriage unit according to the invention.
- the roller carriage has a first electrical unit which forms at least one interface with the current collector.
- a second electrical unit is accommodated in the drive unit, which forms at least one interface to the drive motor.
- Both the first and the second electrical unit is in the form of a respective electrical circuit board, wherein an electrical connection extends between the electrical units. This is attached via brackets to the carriage unit, wherein a first bracket is located on the roller carriage and a second bracket is attached to the drive unit.
- the electrical connection may be a cable or a harness extending laterally to the guide rollers. Moving the carriage unit within the guide rail, the electrical connection can not come into contact with the guide rail, so that damage to the electrical connection can be excluded.
- the guide rail is mounted on the ceiling of a room, wherein the drive motor extends in the vertical direction below the guide rail away and is taken together with the second electrical unit in a support plate.
- the extension direction of the drive motor in the vertical direction corresponds to the arrangement of the axis of rotation of the motor shaft, so that it is perpendicular to the direction of movement of the roller carriage within the guide rail.
- the drive motor essentially has a cylindrical basic structure around which the support plate extends.
- the support plate is U-shaped bent and provided with a U-opening, which is arranged directed vertically downwards.
- the second electrical unit is further arranged adjacent to the drive motor and attached to the support plate.
- a first transmission concept envisages that a drive shaft guided through the intermediate web extends from the drive motor into the roller carriage, wherein the roller carriage has at least one roller mounted on at least one roller carriage axis which can be driven via a worm gear between the drive shaft and the roller carriage axis.
- a worm gear forms a simple gear shape, which includes only one gear stage.
- the toothing of the worm gear can be designed such that in the absence of energization of the drive motor, a manual movement of the wall elements and consequently a method of the roller carriage within the guide rail is possible.
- the vertically arranged and received in the support plate drive motor may be arranged concentrically to the drive shaft, and the worm of the worm gear is seated directly on the motor shaft.
- Another transmission concept between the drive motor and the roller carriage comprises a spur gear, wherein the drive motor has a lateral offset to the drive shaft.
- the drive motor itself can be attached to the housing of the spur gear, wherein the spur gear and the drive motor can also form a mechanical unit.
- the spur gear forms the first gear stage between the drive motor and the roller carriage, wherein between the drive shaft and the roller carriage axis, an angle gear is arranged to form a second gear stage.
- the bevel gear can be designed as a crown toothing, as bevel gear teeth or as other toothing to transmit the rotational movement of the vertically extending drive shaft to the horizontally extending and transverse to the direction of travel of the roller carriage within the guide rail roller carriage axis.
- On the outside of the roller carriage axle rollers are mounted, of which at least one is driven by the drive motor.
- the roller carriage may further comprise a roller carriage axle with two rollers, wherein one of the rollers is driven on one side of the roller carriage and the oppositely disposed second roller is mounted freely rotatably.
- roller carriage two embodiments of the roller carriage are shown, wherein a first embodiment has two rollers on a roller carriage axis, of which only one roller is driven. The opposite roller is freely rotatable.
- the second embodiment of the roller carriage has two roller carriage axles, each receiving two rollers. Two rollers on one side of the roller carriage are driven thereby, wherein the oppositely arranged two further rollers are mounted freely rotatably. This avoids the problem; that the roller carriage tends to straight ahead at a curvature in the guide rail.
- By unilaterally driven rollers the roller carriage can follow a curvature in the guide rail, without this leading to jamming or tilting of the roller carriage in the guide rail.
- all four rollers may be driven with the roller carriage axle having a differential for compensating for the difference in rotational speed of a curved inner roller relative to an outer roller.
- a drive system is provided with a carriage unit which, due to its basic structure consisting of roller carriage, guide device and drive unit, permits a multiplicity of embodiments.
- various types of transmissions are mentioned in order to translate the drive by the drive motor to the roller carriage axis.
- a further transmission concept can be provided, in which the transmission is arranged next to the drive motor within the support plate.
- the transmission of the rotational movement between the drive motor and the transmission can take place via a belt drive which has at least one first and one second pulley.
- the bevel gear within the roller carriage may comprise a gear worm and a worm wheel in a roller carriage with a roller carriage axis, wherein at two roller carriage axles a worm gear drives a worm gear, for example for the first roller carriage axle, and the second roller carriage axle is driven by an intermediate shaft.
- the drive shaft can also drive two roller carriage axles in which a bevel gear on the drive shaft drives a bevel gear on a roller carriage axis and the second roller carriage axis is driven with the interposition of an intermediate shaft.
- FIG. 1 shows an embodiment of a drive system 1 according to the present invention.
- the drive system 1 serves to drive and guide a wall element, which is used in particular for a room partition wall system and is not shown in detail in the figure.
- the wall element can be mounted on a carriage unit 2, wherein the carriage unit 2 is longitudinally movably guided within a guide rail 3 and wherein the direction of movement of the carriage unit 2 perpendicular to the plane of the plane FIG. 1 lies.
- the carriage unit 2 is divided according to the present invention into a roller carriage 4, the is located in the box-like cavity of the guide rail 3.
- a drive unit 5 is provided which comprises at least one drive motor 13 in order to drive the roller carriage 4.
- a guide device 6 is arranged, wherein both the roller carriage 4, the guide device 6 and the drive unit 5 are indicated with respect to their respective vertical sections. Consequently, the guide means 6 extends between the roller carriage 4 and the drive unit 5, wherein at the same time the mechanical connection between the roller carriage 4 and the drive unit 5 is formed by the guide means 6.
- the guide device 6 has at least one guide roller 7, which is guided both against the left side and against the right side by guide surfaces 8. These are formed on the guide rail 3 and form a kind of longitudinal slot which extends in the running direction of the guide rail 3.
- the guide surfaces 8 are formed by the flanks of the longitudinal slot, on which the guide roller 7 can roll on either the left or the right side.
- the roller carriage 4 has on the upper side pantograph 11, which are in respective contact with busbars 12.
- the busbars 12 are received in the upper side of the guide rail 3 via insulators. If the carriage unit 2 moves within the guide rail 3, a permanent current and / or signal contact between the carriage unit 2 and the stationarily inserted busbars 12 is ensured.
- FIG. 2 shows a perspective view of the carriage unit 2 according to the invention, which is divided into the roller carriage 4, the guide means 6 and the drive unit 5.
- the roller carriage 4 has a roller carriage upper part 4a and a roller carriage lower part 4b, wherein on the roller carriage upper part 4a abutment surfaces 30 are provided to limit tilting or lifting of the carriage unit 2 within the guide rail by the stop surface 30 comes against the inside of the guide rail to the plant.
- the roller carriage 4 has a roller carriage axle 21, wherein two rollers 22 are rotatably received on the roller carriage axle 21 according to the illustrated embodiment.
- One of the two rollers 22 can be driven by a drive motor 13, wherein the drive via a transmission, e.g. a spur gear 23, and both the drive motor 13 and the transmission are received in the drive unit 5.
- a transmission e.g. a spur gear 23
- pantograph 11 In the roller carriage 4 three pantograph 11 can be seen, which is provided for current-transmitting contact against busbars, which are laid in the guide rail.
- the drive unit 5 consists essentially of a support plate 18, in which the drive motor 13 and a second electrical unit 17 are received. Between the first electrical unit 16 on the roller carriage 4 and the second electrical unit 17 within the drive unit 5 extends an electrical connection 19, which is fastened via attachment points 31 on both the roller carriage 4 and the support plate 18 on the carriage unit 2.
- the support plate 18 is designed in the lateral direction, which corresponds to the running direction of the carriage unit 2, with mechanical stops 32, which form a respective projection in the direction of travel.
- the baffle 18 is bent in a U-shape with the U-opening directed vertically downwards.
- a support member 27 In the U-opening of the support plate is a support member 27 to which a support pin 28 is rotatably received via a bearing assembly 33.
- the support pin 28 has a hollow bore to guide a further electrical connection 34 through the support pin 28 so that it extends between the drive unit 5 and the wall member which is received on the support pin 28.
- the drive motor 13 may be arranged concentrically to the drive shaft 20.
- space is provided on at least one side of the support plate 18 in order to arrange the second electrical unit 17, which may be in the form of a circuit board, laterally on a support plate 18 within the drive unit 5.
- the second electrical unit 17 serves at least to control the drive motor 13, wherein a further electrical connection 34 is guided through a cable guide 38, which is located within the support bolt 28.
- FIG. 3 a side view of the carriage unit 2 is shown, wherein at least the roller carriage 4, the guide means 6, the support member 27 and the support pin 28 are shown cut.
- the drive motor 13 is arranged on a spur gear 23, from which a drive shaft 20 extends vertically upwards into the roller carriage 4 inside.
- an angular gear 24 is formed in the form of a bevel gear or crown gear, so that the roller carriage axle 21 and consequently the rollers 22 can be set in rotary motion by operation of the drive motor 13.
- the drive shaft 20 is rotatably supported by bearing bushes 35 in the roller carriage lower part 4b.
- two connecting elements 10 extend, which are similar in their essential shape screw elements. These are screwed in from the direction of the drive unit 5, wherein the connecting elements 10 extend through the trolley bottom part 4b and are bolted to a respective thread 37 in the roller carriage upper part 4a.
- spacers 36 are provided, which are braced by the connecting elements 10 against the roller carriage lower part 4b.
- the spacers 36 thus act as a roller bearing, since the left side and the right side of the drive shaft 20 each have a guide roller 7 is arranged to guide the carriage unit 2 in the guide rail.
- the drive shaft 20 passes through a gutter 9, which is integrally formed below the roller carriage lower part 4b.
- the connecting elements 10 are also used for spring-loaded receiving a current collector 11. This is supported by two guide pins 14, which are each received in an associated connecting element 10.
- the guide pins 14 are loaded by spring elements 15, so that the current collector 11 can be pressed against the busbar, which is located above the current collector 11.
- a first electrical unit 16 is provided, which forms an interface to the current collector 11.
- a second electrical unit 17 is accommodated, with an electrical connection 19 extending between the two electrical units 16 and 17.
- the second electrical unit 17 serves at least to control the drive motor 13, wherein a further electrical connection 34 is guided through a cable guide 38 which is located within the support pin 28.
- the support bolt 28, the support member 27 and the bearing assembly 33 are shown in a sectional manner schematically, so that it is illustrated that the support pin 28 is rotatably received in the support member 27.
- the support member 27 is mounted on the support plate 18 of the drive unit 5, wherein the support plate 18 is shown only by the rear half.
- both a sensor 25 and a sensor 26 is arranged on the drive unit 5.
- the encoder 25 may be embodied for example in the form of a permanent magnet, wherein the sensor 26 may be a reed contact. If a plurality of wall elements is moved in the guide rail, a distance control by means of the encoder 25 and the sensor 26 is possible.
- the sensor 26 cooperates with a sensor 25 of a further adjacent moving carriage unit 2.
- the sensor 26 is connected to the second electrical unit 17 so that control of the electric drive motor 13 can be controlled as a function of a detected approximation of another carriage unit 2.
- FIGS. 4a and 4b indicate a further embodiment of a gear arrangement of the carriage unit 2.
- a worm gear 39 is located between the drive motor 13 and the roller carriage axis 21.
- the drive motor 13 may be arranged concentrically to the drive shaft 20, which extends through the guide device 6 shown abstracted into the roller carriage 4.
- the roller carriage 4 comprises only one roller carriage axle 21 with two on this recorded rollers 22, of which only one is driven.
- FIGS. 5a and 5b specify a further embodiment of a carriage unit 2, wherein the drive motor 13 is arranged offset to a planetary gear 40, which is coaxial with the drive shaft 20.
- pulleys 41 are provided which can allow either a synchronous speed or an over or under ratio between the drive motor 13 and the planetary gear 40.
- the roller carriage 4 has two roller carriage axles 21 each with two rollers 22.
- the drive shaft 20 cooperates with an intermediate shaft 42, wherein an angle gear 24 is again arranged to implement the rotational movement between the drive shaft 20 and the intermediate shaft 42.
- Casters 22 shown on the left are driven by the drive shaft 20, whereas the rollers 22 shown on the right are freely rotatable via freewheel bearings 43.
- FIG. 6a a further embodiment of a carriage unit 2 is shown, wherein the drive motor 13 is added to a spur gear 23 offset from the drive shaft 20 in the drive unit 5.
- an intermediate shaft 42 is shown, which is driven by an angle gear 24 of the drive shaft 20 and in the same manner as in FIG. 5b described, allows a drive of the two rollers 22 shown on the left side.
- FIGS. 7a and 7b show a final embodiment of a transmission arrangement between the drive motor 13 and the roller carriage axles 21.
- a worm gear 39 is proposed, which cooperates with an intermediate shaft 42 to to drive these.
- the intermediate shaft 42 extends parallel between the two roller carriage axles 21, wherein between the intermediate shaft 42 and the roller carriage axles 21 a further spur gear 44 is arranged.
- the invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use.
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Description
Die vorliegende Erfindung betrifft ein Antriebssystem zum Antrieb und zur Führung eines Wandelementes, insbesondere für ein Raumtrennwandsystem, mit einer Wageneinheit, die in einer Führungsschiene längsbeweglich geführt ist, wobei die Wageneinheit einen Rollenwagen aufweist, der innerhalb der Führungsschiene angeordnet ist und eine Antriebseinheit aufweist, die unterhalb der Führungsschiene angeordnet ist.The present invention relates to a drive system for driving and guiding a wall element, in particular for a room partitioning system, comprising a carriage unit, which is longitudinally movably guided in a guide rail, wherein the carriage unit comprises a roller carriage, which is arranged within the guide rail and has a drive unit which is arranged below the guide rail.
Antriebssysteme zum Antrieb und zur Führung eines Wandelementes für Raumtrennwandsysteme sind hinreichend bekannt. Die Antriebssysteme verfügen über Wageneinheiten mit jeweiligen Antrieben, so dass die Wageneinheiten selbsttätig in der Führungsschiene verfahren können. Hierfür sind Wageneinheiten mit verschiedenen Ausbildungen bekannt, die zumeist einen Rollenwagen aufweisen, der sich innerhalb der Führungsschiene befindet, wobei an diesem eine Antriebseinheit angebracht ist, in der wenigstens der Antriebsmotor und optional ein Getriebe aufgenommen ist.Drive systems for driving and guiding a wall element for room dividing wall systems are well known. The drive systems have carriage units with respective drives, so that the carriage units can move automatically in the guide rail. For this purpose, carriage units are known with different configurations, which usually have a roller carriage, which is located within the guide rail, wherein at this a drive unit is mounted, in which at least the drive motor and optionally a transmission is added.
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Es ist daher die Aufgabe der vorliegenden Erfindung, ein Antriebssystem zum Antrieb und zur Führung eines Wandelementes für ein Raumtrennwandsystem zu schaffen, das eine verbesserte Konstruktion aufweist und geringere Abmessungen ermöglicht.It is therefore the object of the present invention to provide a drive system for driving and guiding a wall element for a room dividing wall system, which has an improved construction and allows smaller dimensions.
Diese Aufgabe wird ausgehend von einem Antriebssystem mit einer in einer Führungsschiene längsbeweglich geführten Wageneinheit gemäß dem Oberbegriff des Anspruches 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved starting from a drive system with a longitudinally movably guided in a guide rail carriage unit according to the preamble of
Die Erfindung schließt die technische Lehre ein, dass im Übergang zwischen dem Rollenwagen und der Antriebseinheit eine Führungseinrichtung vorgesehen ist, die mit der Führungsschiene zur Führung der Wageneinheit zusammenwirkt.The invention includes the technical teaching that a guide means is provided in the transition between the roller carriage and the drive unit, which cooperates with the guide rail for guiding the carriage unit.
Die Erfindung geht dabei von dem Gedanken aus, dass die Grundstruktur der Wageneinheit aus drei Komponenten gebildet ist, nämlich aus dem Rollenwagen, der innerhalb der Führungsschiene aufgenommen und in dieser geführt ist, der Führungseinrichtung und der Antriebseinheit. Die Führungseinrichtung ist dabei zwischen dem Rollenwagen und der Antriebseinheit angeordnet, wobei der Querschnitt der Führungsschiene C-förmig ausgeführt ist und folglich in der C-Öffnung eine Schlitzführung bildet, durch die sich die Führungseinrichtung hindurch erstreckt und die Verbindung zwischen dem inneren Rollenwagen und der äußeren Antriebseinheit bildet. Durch diese konstruktive Gestaltung der Wageneinheit ist der Bauraum minimiert, da die Führungseinrichtung nicht innerhalb des kastenartigen Hohlraums der Führungsschiene integriert werden muss.The invention is based on the idea that the basic structure of the carriage unit is formed from three components, namely from the roller carriage, which is received within the guide rail and guided in this, the guide device and the drive unit. The guide device is arranged between the roller carriage and the drive unit, wherein the cross section of the guide rail is C-shaped and thus forms a slot guide in the C-opening, through which the guide means extends and the Connection between the inner roller carriage and the outer drive unit forms. Due to this structural design of the carriage unit of the installation space is minimized, since the guide device does not have to be integrated within the box-like cavity of the guide rail.
Vorteilhafterweise weist die Führungseinrichtung zumindest eine und bevorzugt zwei Führungsrollen auf, die zur Führung der Wageneinheit auf seitlich an die Führungseinrichtung angrenzende Führungsflächen abrollen. Weist die Führungseinrichtung zwei Führungsrollen auf, wird der Rollenwagen in Längsrichtung der Führungsschiene geführt. Besitzt die Führungsschiene eine Krümmung oder durchläuft die Wageneinheit eine Abzweigung, so kann der Rollenwagen durch die Führung mittels der zwei Führungsrollen dem Verlauf der Führungsschiene folgen. Die Führungsrollen wälzen gegen die Führungsflächen ab, die an der Führungsschiene ausgebildet sind und sich im unteren Bereich befinden. Die Führungsschiene bildet ein kastenartiges Hohlprofil mit C-förmigem Querschnitt und folglich mit einer unterseitigen Öffnung, durch die sich die Führungseinrichtung hindurch erstreckt. Die Wageneinheit ist drehbar am Wandelement angeordnet, wobei das Wandelement durch zwei Wageneinheiten in der Führungsschiene geführt sein kann, von denen eine Wageneinheit angetrieben ist. Die zweite Wageneinheit dient lediglich der Führung des Wandelementes innerhalb der Führungsschiene ohne Antriebsfunktion. Die Wageneinheiten sind daher drehbar an dem Wandelement angeordnet, so dass der Rollenwagen dem Krümmungsverlauf der Führungsschiene folgen kann. Durchquert die Wageneinheit eine Weiche, so sind Mittel erforderlich, die derart mit der Führungseinrichtung zusammenwirken, dass die Verfahrrichtung der Wageneinheit der gewünschten Richtung entspricht. Hierzu können die Führungsschienen am Ort der Weiche Klappelemente aufweisen, die nach Art einer Schienenweiche die Richtung der Weiterfahrt der Wageneinheit vorgeben können.Advantageously, the guide device has at least one and preferably two guide rollers, which roll for guiding the carriage unit on laterally adjacent to the guide means guide surfaces. If the guide device has two guide rollers, the roller carriage is guided in the longitudinal direction of the guide rail. If the guide rail has a curvature or if the carriage unit passes through a branch, then the roller carriage can follow the course of the guide rail through the guide by means of the two guide rollers. The guide rollers roll against the guide surfaces which are formed on the guide rail and located in the lower area. The guide rail forms a box-like hollow profile with a C-shaped cross-section and consequently with a lower-side opening, through which the guide device extends. The carriage unit is rotatably mounted on the wall element, wherein the wall element may be guided by two carriage units in the guide rail, of which a carriage unit is driven. The second carriage unit only serves to guide the wall element within the guide rail without a drive function. The carriage units are therefore rotatably arranged on the wall element, so that the roller carriage can follow the curvature of the guide rail. If the carriage unit passes through a switch, means are required which interact with the guide device such that the direction of travel of the carriage unit corresponds to the desired direction. For this purpose, the guide rails may have folding elements at the point of the switch, which in the manner of a rail switch can specify the direction of the drive of the carriage unit.
Eine weitere Ausgestaltung der Wageneinheit weist einen Zwischensteg auf, der sich zwischen dem Rollenwagen und der Antriebseinheit erstreckt. Damit kann eine mechanische Verbindung geschaffen werden, um die Antriebseinheit mit dem Rollenwagen zu verbinden. Ferner erstrecken sich durch die Führungseinrichtung und den Rollenwagen wenigstens zwei Verbindungselemente, auf denen die Führungsrollen jeweils drehbar aufgenommen sind. Alternativ können mehrere Zwischenstege vorgesehen sein, auf denen ebenfalls eine drehbare Lagerung der Führungsrollen ermöglicht ist. Die Verbindungselemente können hingegen ebenfalls zur mechanischen Verbindung zwischen dem Rollenwagen und der Antriebseinheit dienen. Der Rollenwagen kann aus einem Oberteil und einem Unterteil bestehen, wobei sich der Zwischensteg als Anformung am Unterteil in Richtung zur Antriebseinheit hin erstreckt. Vorzugsweise sind die Verbindungselemente über ein Gewinde in dem Oberteil des Rollenwagens eingeschraubt, um den Oberteil und den Unterteil des Rollenwagen aufeinander zu fügen, und um neben der drehbaren Aufnahme der Führungsrollen die Antriebseinheit am Rollenwagen zu befestigen.A further embodiment of the carriage unit has a gutter extending between the roller carriage and the drive unit. Thus, a mechanical connection can be created to connect the drive unit with the roller carriage. Furthermore, extending through the guide means and the roller carriage at least two connecting elements on which the guide rollers are each rotatably received. Alternatively, a plurality of intermediate webs may be provided, on which also a rotatable mounting of the guide rollers is made possible. By contrast, the connecting elements can likewise serve for the mechanical connection between the roller carriage and the drive unit. The roller carriage may consist of an upper part and a lower part, wherein the intermediate web extends as Anformung on the lower part in the direction of the drive unit. Preferably, the connecting elements are screwed through a thread in the upper part of the roller carriage to add the upper part and the lower part of the roller carriage to each other, and to attach next to the rotatable receiving the guide rollers, the drive unit on the roller carriage.
Der Rollenwagen weist zumindest einen Stromabnehmer auf, der mit wenigstens einer zugeordneten und in der Führungsschiene eingebrachten Stromschiene stromübertragend zusammenwirkt, um einen in der Antriebseinheit aufgenommenen Antriebsmotor zu speisen, der zum Verfahren des Wandelementes in der Führungsschiene dient. Die Stromschienen sind in Längsrichtung innerhalb der Führungsschiene innenliegend und oberseitig angebracht. Verfährt der Rollenwagen in Längsrichtung der Führungsschiene, so kann ein dauerhafter Stromkontakt zwischen dem Stromabnehmer und der Stromschiene aufrecht erhalten werden. Der Stromabnehmer dient sowohl zur Übertragung der Leistungsversorgung des Antriebsmotors als auch zur Übertragung notwendiger Steuersignale. Der Stromabnehmer ist über Führungsstifte aufgenommen, wobei die Führungsstifte in den Verbindungselementen längsbeweglich geführt sind. Mittels Federelementen werden die Führungsstifte gegen die Stromschienen federbelastet in Kontakt gebracht. Die Stromabnehmer sind 2-fach federvorgespannt, um einen Doppelkontakt zwischen jedem Stromabnehmer gegen eine zugeordnete Stromschiene sicherzustellen. Die Verbindungselemente nehmen folglich mehrere Funktionen war. Einerseits dienen sie der Montage des Oberteils und des Unterteils des Rollenwagens, und zugleich wird die Verbindung zwischen dem Rollenwagen und der Antriebseinheit ermöglicht. Andererseits können die Führungsrollen der Führungseinrichtung über Rollenlager auf den Verbindungselementen drehbar aufgenommen. Neben diesen Funktionen wird zugleich der Stromabnehmer über die Verbindungselemente im Rollenwagen aufgenommen, so dass die Verbindungselemente als zentrale Strukturelemente der erfindungsgemäßen Wageneinheit wirken.The roller carriage has at least one current collector, which cooperates with at least one associated and introduced in the guide rail power rail current transmitting to receive a recorded in the drive unit drive motor, which serves for moving the wall element in the guide rail. The busbars are mounted longitudinally within the guide rail inside and top side. Moves the roller carriage in the longitudinal direction of the guide rail, so a permanent power contact between the pantograph and the busbar can be maintained. The current collector serves both to transmit the power supply of the drive motor and to transmit the necessary control signals. The pantograph is over Guide pins received, wherein the guide pins are guided longitudinally movable in the connecting elements. By means of spring elements, the guide pins are brought spring-loaded against the busbars in contact. The pantographs are spring-biased twice to ensure double contact between each pantograph against an associated busbar. The fasteners thus take several functions. On the one hand, they serve to mount the upper part and the lower part of the roller carriage, and at the same time the connection between the roller carriage and the drive unit is made possible. On the other hand, the guide rollers of the guide means can be rotatably received on roller bearings on the connecting elements. In addition to these functions, the pantograph is at the same time received via the connecting elements in the roller carriage, so that the connecting elements act as central structural elements of the carriage unit according to the invention.
Der Rollenwagen besitzt eine erste elektrische Einheit, die wenigstens eine Schnittstelle zum Stromabnehmer bildet. Eine zweite elektrische Einheit ist in der Antriebseinheit aufgenommen, die wenigstens eine Schnittstelle zum Antriebsmotor bildet. Sowohl die erste als auch die zweite elektrische Einheit ist in Gestalt einer jeweiligen elektrischen Platine ausgeführt, wobei sich eine elektrische Verbindung zwischen den elektrischen Einheiten erstreckt. Diese ist über Halterungen an der Wageneinheit befestigt, wobei sich eine erste Halterung am Rollenwagen befindet und eine zweite Halterung an der Antriebseinheit angebracht ist. Die elektrische Verbindung kann ein Kabel oder ein Kabelstrang sein, der seitlich zu den Führungsrollen verläuft. Verfährt die Wageneinheit innerhalb der Führungsschiene, so kann die elektrische Verbindung nicht mit der Führungsschiene in Kontakt geraten, so dass eine Beschädigung der elektrischen Verbindung ausgeschlossen werden kann.The roller carriage has a first electrical unit which forms at least one interface with the current collector. A second electrical unit is accommodated in the drive unit, which forms at least one interface to the drive motor. Both the first and the second electrical unit is in the form of a respective electrical circuit board, wherein an electrical connection extends between the electrical units. This is attached via brackets to the carriage unit, wherein a first bracket is located on the roller carriage and a second bracket is attached to the drive unit. The electrical connection may be a cable or a harness extending laterally to the guide rollers. Moving the carriage unit within the guide rail, the electrical connection can not come into contact with the guide rail, so that damage to the electrical connection can be excluded.
Die Führungsschiene ist an der Decke eines Raumes angebracht, wobei sich der Antriebsmotor in vertikaler Richtung unterseitig der Führungsschiene hinweg erstreckt und gemeinsam mit der zweiten elektrischen Einheit in einem Tragblech aufgenommen ist. Die Erstreckungsrichtung des Antriebsmotors in vertikaler Richtung entspricht der Anordnung der Rotationsachse der Motorwelle, so dass sich diese senkrecht zur Bewegungsrichtung des Rollenwagens innerhalb der Führungsschiene befindet. Der Antriebsmotor weist im Wesentlichen eine zylinderförmige Grundstruktur auf, um die sich das Tragblech herum erstreckt. Hingegen ist das Tragblech U-förmig gebogen ausgeführt und mit einer U-Öffnung versehen, die vertikal nach unten gerichtet angeordnet ist. Innerhalb des U-förmigen Tragbleches ist neben dem Antriebsmotor ferner die zweite elektrische Einheit benachbart zum Antriebsmotor angeordnet und am Tragblech befestigt.The guide rail is mounted on the ceiling of a room, wherein the drive motor extends in the vertical direction below the guide rail away and is taken together with the second electrical unit in a support plate. The extension direction of the drive motor in the vertical direction corresponds to the arrangement of the axis of rotation of the motor shaft, so that it is perpendicular to the direction of movement of the roller carriage within the guide rail. The drive motor essentially has a cylindrical basic structure around which the support plate extends. By contrast, the support plate is U-shaped bent and provided with a U-opening, which is arranged directed vertically downwards. Within the U-shaped support plate, in addition to the drive motor, the second electrical unit is further arranged adjacent to the drive motor and attached to the support plate.
Zum Antrieb des Rollenwagens können verschiedene Getriebekonzepte vorgesehen sein, um den oberhalb der Führungseinrichtung angeordneten Rollenwagen durch den unterhalb der Führungseinrichtung angeordneten Antriebsmotor anzutreiben. Ein erstes Getriebekonzept sieht vor, dass sich vom Antriebsmotor in den Rollenwagen hinein eine durch den Zwischensteg hindurch geführte Antriebswelle erstreckt, wobei der Rollenwagen wenigstens eine auf zumindest einer Rollenwagenachse gelagerte Laufrolle aufweist, die über ein Schneckenradgetriebe zwischen der Antriebswelle und der Rollenwagenachse antreibbar ist. Ein Schneckenradgetriebe bildet eine einfache Getriebeform, die lediglich eine Verzahnungsstufe umfasst. Die Verzahnung des Schneckenradgetriebes kann derart ausgelegt sein, dass bei einer fehlenden Bestromung des Antriebsmotors eine manuelle Bewegung der Wandelemente und folglich ein Verfahren des Rollenwagens innerhalb der Führungsschiene möglich ist. Der vertikal angeordnete und im Tragblech aufgenommene Antriebsmotor kann konzentrisch zur Antriebswelle angeordnet sein, und die Schnecke des Schneckenradgetriebes sitzt direkt auf der Motorwelle.To drive the roller carriage, various transmission concepts can be provided in order to drive the roller carriage arranged above the guide device through the drive motor arranged below the guide device. A first transmission concept envisages that a drive shaft guided through the intermediate web extends from the drive motor into the roller carriage, wherein the roller carriage has at least one roller mounted on at least one roller carriage axis which can be driven via a worm gear between the drive shaft and the roller carriage axis. A worm gear forms a simple gear shape, which includes only one gear stage. The toothing of the worm gear can be designed such that in the absence of energization of the drive motor, a manual movement of the wall elements and consequently a method of the roller carriage within the guide rail is possible. The vertically arranged and received in the support plate drive motor may be arranged concentrically to the drive shaft, and the worm of the worm gear is seated directly on the motor shaft.
Ein weiteres Getriebekonzept zwischen dem Antriebsmotor und dem Rollenwagen umfasst ein Stirnradgetriebe, wobei der Antriebsmotor einen seitlichen Versatz zur Antriebswelle aufweist. Der Antriebsmotor selbst kann am Gehäuse des Stirnradgetriebes befestigt sein, wobei das Stirnradgetriebe und der Antriebsmotor auch eine mechanische Einheit bilden können.Another transmission concept between the drive motor and the roller carriage comprises a spur gear, wherein the drive motor has a lateral offset to the drive shaft. The drive motor itself can be attached to the housing of the spur gear, wherein the spur gear and the drive motor can also form a mechanical unit.
Vorteilhafterweise bildet das Stirnradgetriebe die erste Getriebestufe zwischen dem Antriebsmotor und dem Rollenwagen, wobei zwischen der Antriebswelle und der Rollenwagenachse ein Winkelgetriebe angeordnet ist, um eine zweite Getriebestufe zu bilden. Das Winkelgetriebe kann als Kronenverzahnung, als Kegelradverzahnung oder als sonstige Verzahnung ausgeführt sein, um die Drehbewegung der vertikal verlaufenden Antriebswelle auf die horizontal verlaufende und quer zur Verfahrrichtung des Rollenwagens innerhalb der Führungsschiene angeordnete Rollenwagenachse zu übertragen. Außenseitig sind an der Rollenwagenachse Laufrollen gelagert, von denen wenigstens eine durch den Antriebsmotor angetrieben wird. Der Rollenwagen kann ferner eine Rollenwagenachse mit zwei Laufrollen aufweisen, wobei eine der Laufrollen auf einer Seite des Rollenwagens angetrieben ist und die gegenüberliegend angeordnete zweite Laufrolle freidrehend gelagert ist. Hierdurch werden zwei Ausführungsformen des Rollenwagens aufgezeigt, wobei eine erste Ausführungsform zwei Laufrollen auf einer Rollenwagenachse aufweist, von denen nur eine Laufrolle angetrieben wird. Die gegenüberliegende Laufrolle ist dabei frei drehbar. Die zweite Ausführungsform des Rollenwagens weist zwei Rollenwagenachsen auf, die jeweils zwei Laufrollen aufnehmen. Zwei Laufrollen auf einer Seite des Rollenwagens sind dabei angetrieben, wobei die gegenüberliegend angeordneten zwei weiteren Rollen freidrehend gelagert sind. Hierdurch wird die Problematik vermieden; dass der Rollenwagen bei einer Krümmung in der Führungsschiene zum Geradeauslauf neigt. Durch einseitig angetriebene Laufrollen kann der Rollenwagen einer Krümmung in der Führungsschiene folgen, ohne dass dies zu einem Verklemmen oder einem Verkanten des Rollenwagens in der Führungsschiene führt. Alternativ können alle vier Laufrollen angetrieben werden, wobei die Rollenwagenachse ein Differenzial aufweist, um die Differenz der Drehgeschwindigkeit einer in einer Krümmung innenliegenden Laufrolle im Vergleich zu einer außenliegenden Laufrolle auszugleichen.Advantageously, the spur gear forms the first gear stage between the drive motor and the roller carriage, wherein between the drive shaft and the roller carriage axis, an angle gear is arranged to form a second gear stage. The bevel gear can be designed as a crown toothing, as bevel gear teeth or as other toothing to transmit the rotational movement of the vertically extending drive shaft to the horizontally extending and transverse to the direction of travel of the roller carriage within the guide rail roller carriage axis. On the outside of the roller carriage axle rollers are mounted, of which at least one is driven by the drive motor. The roller carriage may further comprise a roller carriage axle with two rollers, wherein one of the rollers is driven on one side of the roller carriage and the oppositely disposed second roller is mounted freely rotatably. As a result, two embodiments of the roller carriage are shown, wherein a first embodiment has two rollers on a roller carriage axis, of which only one roller is driven. The opposite roller is freely rotatable. The second embodiment of the roller carriage has two roller carriage axles, each receiving two rollers. Two rollers on one side of the roller carriage are driven thereby, wherein the oppositely arranged two further rollers are mounted freely rotatably. This avoids the problem; that the roller carriage tends to straight ahead at a curvature in the guide rail. By unilaterally driven rollers, the roller carriage can follow a curvature in the guide rail, without this leading to jamming or tilting of the roller carriage in the guide rail. Alternatively, all four rollers may be driven with the roller carriage axle having a differential for compensating for the difference in rotational speed of a curved inner roller relative to an outer roller.
Vorliegend wird ein Antriebssystem mit einer Wageneinheit geschaffen, die aufgrund ihrer Grundstruktur, bestehend aus Rollenwagen, Führungseinrichtung und Antriebseinheit, eine Vielzahl von Ausführungsformen zulässt. Insbesondere seien verschiedene Getriebeformen erwähnt, um den Antrieb durch den Antriebsmotor auf die Rollenwagenachse zu übersetzen. Neben einem Schneckentrieb und einem Stirnradgetriebe, über das der Antriebsmotor im Tragblech angeordnet ist, kann ein weiteres Getriebekonzept vorgesehen sein, bei dem das Getriebe neben dem Antriebsmotor innerhalb des Tragbleches angeordnet ist. Die Übertragung der Drehbewegung zwischen dem Antriebsmotor und dem Getriebe kann über einen Riementrieb erfolgen, der wenigstens eine erste und eine zweite Riemenscheibe aufweist.In the present case, a drive system is provided with a carriage unit which, due to its basic structure consisting of roller carriage, guide device and drive unit, permits a multiplicity of embodiments. In particular, various types of transmissions are mentioned in order to translate the drive by the drive motor to the roller carriage axis. In addition to a worm gear and a spur gear, via which the drive motor is arranged in the support plate, a further transmission concept can be provided, in which the transmission is arranged next to the drive motor within the support plate. The transmission of the rotational movement between the drive motor and the transmission can take place via a belt drive which has at least one first and one second pulley.
Das Winkelgetriebe innerhalb des Rollenwagens kann bei einem Rollenwagen mit einer Rollenwagenachse eine Getriebeschnecke und ein Schneckenrad umfassen, wobei bei zwei Rollenwagenachsen eine Getriebeschnecke ein Schneckenrad z.B. für die erste Rollenwagenachse antreibt, und die zweite Rollenwagenachse durch eine Zwischenwelle angetrieben wird. Ist eine Kegelradverzahnung zwischen der Antriebswelle und der Rollenwagenachse vorgesehen, so kann die Antriebswelle auch zwei Rollenwagenachsen antreiben, in dem ein Kegelrad auf der Antriebswelle ein Kegelrad auf einer Rollenwagenachse antreibt und die zweite Rollenwagenachse unter Zwischenschaltung einer Zwischenwelle angetrieben wird.The bevel gear within the roller carriage may comprise a gear worm and a worm wheel in a roller carriage with a roller carriage axis, wherein at two roller carriage axles a worm gear drives a worm gear, for example for the first roller carriage axle, and the second roller carriage axle is driven by an intermediate shaft. If a bevel gear between the drive shaft and the roller carriage axis provided, the drive shaft can also drive two roller carriage axles in which a bevel gear on the drive shaft drives a bevel gear on a roller carriage axis and the second roller carriage axis is driven with the interposition of an intermediate shaft.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt.Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS.
Es zeigt:
Figur 1- ein Ausführungsbeispiel eines erfindungsgemäßen Antriebssystems zum Antrieb und zur Führung eines Wandelementes mit einer erfindungsgemäßen Wageneinheit;
Figur 2- eine perspektivische Ansicht der Wageneinheit mit einem Rollenwagen, einer Antriebseinheit und einer zwischen dem Rollenwagen und der Antriebseinheit angeordneten Führungseinrichtung;
Figur 3- eine Schnittansicht der Wageneinheit, wobei zwischen dem Antriebsmotor und der Rollenwagenachse ein Stirnradgetriebe sowie eine Winkelverzahnung angeordnet ist;
- Figur 4a
- eine perspektivische Ansicht einer Wageneinheit mit einem Schneckenradgetriebe;
Figur 4b- eine Schnittansicht durch den Rollenwagen gemäß
Figur 4a , in der das Schneckenradgetriebe dargestellt ist; - Figur 5a
- eine Wageneinheit mit einem Antriebsmotor und einem Getriebe, wobei der Antriebsmotor einen seitlichen Versatz zur Antriebswelle aufweist;
- Figur 5b
- eine Schnittansicht durch einen Rollenwagen einer Wageneinheit gemäß
Figur 5a , wobei zwei Rollenwagenachsen vorgesehen sind, die über eine Zwischenwelle durch ein Winkelgetriebe angetrieben sind; - Figur 6a
- eine Wageneinheit mit einem Stirnradgetriebe, wobei der Antriebsmotor einen seitlichen Versatz zur Antriebswelle aufweist;
- Figur 6b
- eine Schnittansicht durch einen Rollenwagen einer Wageneinheit gemäß
Figur 6a , wobei zwei Rollenwagenachsen vorgesehen sind, die über eine Zwischenwelle durch ein Winkelgetriebe angetrieben sind; - Figur 7a
- eine Wageneinheit mit einem Antriebsmotor, der konzentrisch zur Antriebswelle angeordnet ist, wobei sich die Antriebswelle außermittig in den Rollenwagen hinein erstreckt und
- Figur 7b
- eine Schnittansicht des Rollenwagens der Wageneinheit gemäß
Figur 7a mit einer außermittig angeordneten Antriebswelle, die über eine Zwischenwelle sowohl eine erste Rollenwagenachse als auch eine zweite Rollenwagenachse antreibt.
- FIG. 1
- An embodiment of a drive system according to the invention for driving and for guiding a wall element with a carriage unit according to the invention;
- FIG. 2
- a perspective view of the carriage unit with a roller carriage, a drive unit and arranged between the roller carriage and the drive unit guide means;
- FIG. 3
- a sectional view of the carriage unit, wherein between the drive motor and the roller carriage axis a spur gear and an angular toothing is arranged;
- FIG. 4a
- a perspective view of a carriage unit with a worm gear;
- FIG. 4b
- a sectional view through the roller carriage according to
FIG. 4a in which the worm gear is shown; - FIG. 5a
- a carriage unit having a drive motor and a transmission, the drive motor having a lateral offset to the drive shaft;
- FIG. 5b
- a sectional view through a roller carriage of a carriage unit according to
FIG. 5a where two roller carriage axles are provided, which are driven via an intermediate shaft by an angle gear; - FIG. 6a
- a carriage unit having a spur gear, wherein the drive motor has a lateral offset from the drive shaft;
- FIG. 6b
- a sectional view through a roller carriage of a carriage unit according to
FIG. 6a wherein two roller carriage axles are provided, which are driven via an intermediate shaft by an angle gear; - Figure 7a
- a carriage unit with a drive motor which is arranged concentrically to the drive shaft, wherein the drive shaft extends eccentrically into the roller carriage in and
- FIG. 7b
- a sectional view of the roller carriage of the carriage unit according to
Figure 7a with an off-center drive shaft, which drives both a first roller carriage axis and a second roller carriage axis via an intermediate shaft.
Die Führungseinrichtung 6 weist wenigstens eine Führungsrolle 7 auf, die sowohl gegen die linke Seite als auch gegen die rechte Seite durch Führungsflächen 8 geführt ist. Diese sind an der Führungsschiene 3 ausgebildet und bilden eine Art Längsschlitz, der in Laufrichtung der Führungsschiene 3 verläuft. Die Führungsflächen 8 werden durch die Flanken des Längsschlitzes gebildet, auf denen die Führungsrolle 7 entweder an der linken oder der rechten Seite abrollen kann. Im Ergebnis wird eine Wageneinheit 2 vorgeschlagen, die eine platzsparende und vorteilhafte Führungseinrichtung 6 aufweist, die zugleich eine vorhandene Querschnittsform einer Führungsschiene 3 nutzt, indem an dieser Führungsflächen 8 angebracht sind.The
Der Rollenwagen 4 weist oberseitig Stromabnehmer 11 auf, die in jeweiligem Kontakt mit Stromschienen 12 stehen. Die Stromschienen 12 sind über Isolatoren in der Oberseite der Führungsschiene 3 aufgenommen. Verfährt die Wageneinheit 2 innerhalb der Führungsschiene 3, so ist ein dauerhafter Strom- und/oder Signalkontakt zwischen der Wageneinheit 2 und den ortsfest eingebrachten Stromschienen 12 gewährleistet.The
Der Rollenwagen 4 weist eine Rollenwagenachse 21 auf, wobei gemäß des dargestellten Ausführungsbeispiels zwei Laufrollen 22 auf der Rollenwagenachse 21 drehbar aufgenommen sind. Eine der beiden Laufrollen 22 kann dabei durch einen Antriebsmotor 13 angetrieben werden, wobei der Antrieb über ein Getriebe, z.B. ein Stirnradgetriebe 23, erfolgt und sowohl der Antriebsmotor 13 als auch das Getriebe sind in der Antriebseinheit 5 aufgenommen.The
Im Rollenwagen 4 sind drei Stromabnehmer 11 erkennbar, die zum stromübertragenden Kontakt gegen Stromschienen vorgesehen ist, die in der Führungsschiene verlegt sind.In the
Die Antriebseinheit 5 besteht im Wesentlichen aus einem Tragblech 18, in dem der Antriebsmotor 13 und eine zweite elektrische Einheit 17 aufgenommen sind. Zwischen der ersten elektrischen Einheit 16 auf dem Rollenwagen 4 und der zweiten elektrischen Einheit 17 innerhalb der Antriebseinheit 5 erstreckt sich eine elektrische Verbindung 19, die über Befestigungspunkte 31 sowohl am Rollenwagen 4 als auch am Tragblech 18 an der Wageneinheit 2 befestigt ist.The
Das Tragblech 18 ist in seitlicher Richtung, die der Laufrichtung der Wageneinheit 2 entspricht, mit mechanischen Anschlägen 32 ausgeführt, die einen jeweiligen Vorsprung in Verfahrrichtung bilden. Das Tragblech 18 ist U-förmig gebogen, wobei die U-Öffnung vertikal nach unten gerichtet angeordnet ist. In der U-Öffnung des Tragbleches befindet sich ein Tragelement 27, an dem ein Tragbolzen 28 über eine Lageranordnung 33 drehbar aufgenommen ist. Der Tragbolzen 28 besitzt eine Hohlbohrung, um eine weitere elektrische Verbindung 34 durch den Tragbolzen 28 hindurch zu führen, so dass sich diese zwischen der Antriebseinheit 5 und dem Wandelement, das am Tragbolzen 28 aufgenommen ist, erstreckt.The
Der Antriebsmotor 13 kann konzentrisch zur Antriebswelle 20 angeordnet sein. Dadurch wird an mindestens einer Seite des Tragbleches 18 Platz geschaffen, um die zweite elektrische Einheit 17, die in Form einer Platine ausgebildet sein kann, seitlich an einem Tragblech 18 innerhalb der Antriebseinheit 5 anzuordnen. Dies bietet den Vorteil, dass im Wartungsfall die zweite elektrische Einheit 17, der Antriebsmotor 13 und das Getriebe 23, 39, 40 gewartet und gegebenenfalls ausgetauscht werden können, ohne den in der Führungsschiene laufenden Rollenwagen 4 ausbauen zu müssen. Die zweite elektrische Einheit 17 dient wenigstens zur Steuerung des Antriebsmotors 13, wobei eine weitere elektrische Verbindung 34 durch eine Kabelführung 38 hindurch geführt ist, die sich innerhalb des Tragbolzens 28 befindet. Damit kann eine weitere Verbindung zwischen der Wageneinheit 2 und einem Wandelement hergestellt werden.The
In
Durch den Rollenwagenunterteil 4b und den Rollenwagenoberteil 4a erstrecken sich zwei Verbindungselemente 10, die in ihrer wesentlichen Gestalt Schraubenelementen ähneln. Diese sind aus Richtung der Antriebseinheit 5 eingeschraubt, wobei sich die Verbindungselemente 10 durch den Rollwagenunterteil 4b hindurch erstrecken und über ein jeweiliges Gewinde 37 im Rollenwagenoberteil 4a verschraubt sind. Um die Führungsrollen 7 zu lagern, sind Distanzbuchsen 36 vorgesehen, die durch die Verbindungselemente 10 gegen den Rollenwagenunterteil 4b verspannt werden. Die Distanzbuchsen 36 wirken folglich als Rollenlager, da linksseitig als auch rechtsseitig der Antriebswelle 20 jeweils eine Führungsrolle 7 zur Führung der Wageneinheit 2 in der Führungsschiene angeordnet ist. Die Antriebswelle 20 läuft durch einen Zwischensteg 9, der mittig unter dem Rollenwagenunterteil 4b angeformt ist.Through the roller carriage
Die Verbindungselemente 10 dienen ferner zur federbelasteten Aufnahme eines Stromabnehmers 11. Dieser wird durch zwei Führungsstifte 14 gelagert, die jeweils in einem zugeordneten Verbindungselement 10 aufgenommen sind. Die Führungsstifte 14 sind durch Federelemente 15 belastet, so dass der Stromabnehmer 11 gegen die Stromschiene gedrückt werden kann, die sich oberhalb der Stromabnehmer 11 befindet. Auf dem Rollenwagen 4 ist eine erste elektrische Einheit 16 vorgesehen, die eine Schnittstelle zum Stromabnehmer 11 bildet. In der Antriebseinheit 5 ist eine zweite elektrische Einheit 17 aufgenommen, wobei sich zwischen den beiden elektrischen Einheiten 16 und 17 eine elektrische Verbindung 19 erstreckt. Die zweite elektrische Einheit 17 dient wenigstens zur Steuerung des Antriebsmotors 13, wobei eine weitere elektrische Verbindung 34 durch eine Kabelführung 38 hindurch geführt ist, die sich innerhalb des Tragbolzens 28 befindet. Damit kann eine weitere Verbindung zwischen der Wageneinheit 2 und einem Wandelement hergestellt werden. Der Tragbolzen 28, das Tragelement 27 sowie die Lageranordnung 33 sind in geschnittener Weise schematisch dargestellt, so dass verdeutlicht ist, dass der Tragbolzen 28 drehbar in dem Tragelement 27 aufgenommen ist. Das Tragelement 27 ist am Tragblech 18 der Antriebseinheit 5 angebracht, wobei das Tragblech 18 lediglich durch die hintere Hälfte dargestellt ist.The connecting
An der Antriebseinheit 5 ist sowohl ein Messgeber 25 als auch ein Messaufnehmer 26 angeordnet. Der Messgeber 25 kann beispielsweise in Gestalt eines Permanentmagneten ausgeführt sein, wobei der Messaufnehmer 26 ein Reed-Kontakt sein kann. Werden mehrere Wandelemente in der Führungsschiene bewegt, so ist eine Abstandskontrolle mittels des Messgebers 25 und des Messaufnehmers 26 möglich. Der Messaufnehmer 26 wirkt dabei mit einem Messgeber 25 einer weiteren benachbart verfahrenden Wageneinheit 2 zusammen. Der Messaufnehmer 26 ist dabei mit der zweiten elektrischen Einheit 17 verbunden, so dass eine Steuerung des elektrischen Antriebsmotors 13 in Abhängigkeit einer detektierten Näherung einer weiteren Wageneinheit 2 gesteuert werden kann.On the
Die
Die
In den
Die
Die Erfindung beschränkt sich in ihrer Ausführung nicht auf das vorstehend angegebene bevorzugte Ausführungsbeispiel. Vielmehr ist eine Anzahl von Varianten denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch macht.The invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use.
Claims (15)
- A drive system (1) for operating and for guiding a wall element, including a carriage unit (2), which• is guided to be longitudinally movable in a guiding rail (3), and• wherein the carriage unit (2) includes a roller carriage (4), whichwherein- is disposed within the guiding rail (3),- includes a drive unit (5) with a drive motor (13), which is disposed underneath the guiding rail (3), and- includes at least one current collector (11), which, in a power transmitting manner, cooperates with at least one associated power rail (12) which is incorporated into the guiding rail (3), in order to feed a drive motor (13) which is accommodated in the drive unit (5) and serves to displace the wall element in the guiding rail (3).• a guiding device (6) is provided in the transition area between the roller carriage (4) and the drive unit (5), which device cooperates with the guiding rail (3) for guiding the carriage unit (2),• the roller carriage (4) includes a first electrical unit (16), which forms the at least one interface to the current collector (11),• the drive unit (5) includes a second electrical unit (17), which forms the at least one interface to the drive motor (3), wherein an electrical connection (19) is established between the first electrical unit (16) and the second electrical unit (17,)• the guiding rail (3) is affixed to the ceiling of a room,• the drive motor (13)characterized in that- extends in vertical direction on the underside of the guiding rail (3)• the drive motor (13)- together with the second electrical unit (17) is accommodated in a sheet metal support (18),- is disposed at a first gear system (23, 39, 40), from which a drive shaft (20) extends vertically upwards into the roller carriage (4), and- is disposed laterally offset with regard to the drive shaft (20),• the roller carriage (4) presents at least one running roller (22), which is supported on at least one roller carriage shaft (21), which can be driven via another gear system (23, 44) between the drive shaft (20) and the roller carriage shaft (21), and• the second electrical unit (17)- is disposed neighbouring the drive motor (13) next to the latter and affixed to the sheet metal support (18).
- The drive system (1) according to claim 1, characterized in that the guiding device (6) has at least one guiding roller (7), which, for guiding the carriage unit (2), roll on guiding surfaces (8) which laterally adjoin the guiding device (6).
- The drive system (1) according to claim 1 oder or 2, characterized in that an intermediate web (9) extends between the roller carriage (4) and the drive unit (5), in order to establish a mechanical connection, wherein the intermediate web (9) is disposed between the guiding rollers (7).
- The drive system (1) according to claim 1, characterized in that at least two connecting elements (10), on which the guiding rollers (7) are respectively rotatably accommodated, extend through the guiding device (6) and the roller carriage (4).
- The drive system (1) according to any of the preceding claims, characterized in that the current collector (11) is accommodated via guiding pins (14) and is resiliently guided with spring elements (15) in the connecting elements (10) in order to establish a spring-loaded mechanical contact of the current collector (11) at the current rail (12) for picking up current and/or signals.
- The drive system (1) according to any of the preceding claims, characterized in that the first and the second electrical units (16, 17) are configured in the shape of a printed circuit board.
- The drive unit (1) according to claim 3, characterized in that• the drive shaft (20) extends from the drive motor (13) into the roller carriage (4) and is guided passing through the intermediate web (9), and• the roller carriage (4) presents at least one running roller (22), which is supported on at least one roller carriage shaft (21), which can be driven via worm gear system between the drive shaft (20) and the roller carriage shaft (21).
- The drive system (1) according to any of the preceding claims, characterized in that• the sheet metal support (18) is configured in a U-shape and is disposed with the U-opening being oriented vertically downwards, and• a cylindrical gear system (23) is disposed in the sheet metal support (18).
- The drive system (1) according to claim 8, characterized in that in that the drive motor (13) is mechanically linked to the cylindrical gear system (23).
- The drive system (1) according to claim 8 to 9, characterized in that the cylindrical gear system (23) forms a first gearing stage, wherein an angular gear system (24) is disposed between the drive shaft (20) and the roller carriage shaft (21) in order to form a second gearing stage.
- The drive system (1) according to claim 1, characterized in that the carriage unit (2) has at least one distance measuring unit with a measuring transducer (25) and a measuring encoder (26), in order to detect a distance between at least two carriage units (26).
- The drive system (1) according to claim 8, characterized in that a carrying element (27) is accommodated in the U-opening of the sheet metal support (18), at which element a carrying bolt (28) is disposed for connecting the wall element to the carriage unit (2).
- The drive system (1) according to claim 12, characterized in that the carrying bolt (28) has a cable conduit for guiding at least one other electrical connection (34) from the carriage unit (2) in the direction of the wall element.
- The drive system (1) according to claim 1, characterized in that the roller carriage (4) has a roller carriage shaft (21) with two running rollers (22), wherein one of the running rollers (22) is driven on one side of the roller carriage (4) and the second running roller (22), disposed on the opposite side, is supported to be freely rotating.
- The drive system (1) according to claim 1, characterized in that the roller carriage (4) has two roller carriage shafts (21) with respectively two running rollers (22), wherein two running rollers (22) are driven on one side of the roller carriage (4), and the two running rollers (22), disposed on the opposite side, are supported to be freely rotating.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008028831A DE102008028831C5 (en) | 2008-06-19 | 2008-06-19 | Drive system for driving and guiding a wall element for a room dividing wall system |
PCT/EP2009/003857 WO2009152943A1 (en) | 2008-06-19 | 2009-05-29 | Drive system for driving and guiding a wall element for a room partition system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2291573A1 EP2291573A1 (en) | 2011-03-09 |
EP2291573B1 true EP2291573B1 (en) | 2015-04-15 |
Family
ID=40886266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09765523.7A Active EP2291573B1 (en) | 2008-06-19 | 2009-05-29 | Drive system for driving and guiding a wall element for a room partition system |
Country Status (7)
Country | Link |
---|---|
US (1) | US8479447B2 (en) |
EP (1) | EP2291573B1 (en) |
CN (1) | CN102066683B (en) |
AU (1) | AU2009259703A1 (en) |
DE (1) | DE102008028831C5 (en) |
ES (1) | ES2541669T3 (en) |
WO (1) | WO2009152943A1 (en) |
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2008
- 2008-06-19 DE DE102008028831A patent/DE102008028831C5/en not_active Expired - Fee Related
-
2009
- 2009-05-29 AU AU2009259703A patent/AU2009259703A1/en not_active Abandoned
- 2009-05-29 US US13/000,285 patent/US8479447B2/en not_active Expired - Fee Related
- 2009-05-29 EP EP09765523.7A patent/EP2291573B1/en active Active
- 2009-05-29 WO PCT/EP2009/003857 patent/WO2009152943A1/en active Application Filing
- 2009-05-29 CN CN200980122799.9A patent/CN102066683B/en active Active
- 2009-05-29 ES ES09765523.7T patent/ES2541669T3/en active Active
Also Published As
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US20110113693A1 (en) | 2011-05-19 |
US8479447B2 (en) | 2013-07-09 |
ES2541669T3 (en) | 2015-07-23 |
DE102008028831A1 (en) | 2010-01-14 |
CN102066683B (en) | 2016-08-17 |
EP2291573A1 (en) | 2011-03-09 |
CN102066683A (en) | 2011-05-18 |
AU2009259703A1 (en) | 2009-12-23 |
DE102008028831B4 (en) | 2010-06-10 |
WO2009152943A1 (en) | 2009-12-23 |
DE102008028831C5 (en) | 2013-06-06 |
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