EP3006388A1 - Under-floor lifting installation - Google Patents
Under-floor lifting installation Download PDFInfo
- Publication number
- EP3006388A1 EP3006388A1 EP15187909.5A EP15187909A EP3006388A1 EP 3006388 A1 EP3006388 A1 EP 3006388A1 EP 15187909 A EP15187909 A EP 15187909A EP 3006388 A1 EP3006388 A1 EP 3006388A1
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- EP
- European Patent Office
- Prior art keywords
- telescopic
- lifting means
- lifting
- spindle
- stage
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- 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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- 238000009434 installation Methods 0.000 title 1
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 2
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
Definitions
- the invention relates to an underfloor lifting system according to the preamble of claim 1.
- An underfloor lifting system from the DE 10 2005 022 478 A1 is known.
- the lift height to be effected, by which, for example, a bogie or a car body of a rail vehicle can be raised, is predetermined by the central lifting device in this known underfloor lifting system and corresponds to the lifting height of this central lifting device.
- the individual support elements extend from the central lifting device to the individual points at which the bogie or the car body is to be supported and raised.
- a pit In order to enable a certain lifting height, a pit must be created in the known underfloor lifting system, the depth of which has the degree of the desired lifting height.
- a lifting platform is known in which a hydraulic telescopic cylinder is provided as a common drive for two telescopic lifter, and a mobility of an upper compared to a lower telescopic stage of each telescopic lift is effected by a tension element and various pulleys.
- a device for changing underfloor components on rail vehicles wherein a central drive is provided for two lifting means of a telescopic lifter. This central drive is not arranged between the two lifting means, but on one side beyond the two lifting means.
- the invention has for its object to improve a generic underfloor lifting system to the effect that this with the lowest possible, d. H. flat as possible pit can be realized and is economically feasible.
- the invention proposes to design the lifting device with at least two telescopic stages, so that in the collapsed or retracted state, the lifting device requires considerably less height than in the extended state.
- the foundation for the underfloor lifting system can therefore be relatively flat and be considerably lower than the extended lifting device.
- the construction costs for the underfloor lifting system are advantageously influenced and secondly, a high degree of operational reliability is given, for example, in areas with high groundwater levels, in which by the corresponding flat design of a pit penetration of groundwater can be avoided.
- the lifting device has a plurality of telescopic lifters, so that in each case a telescopic lifter is provided below each point which is to be supported and lifted.
- a telescopic lifter has at least two telescopic stages, which are height-adjustable by means of so-called lifting means. It is proposed by the proposal that the lifting means of these two height-adjustable telescopic stages are coupled together and that in an economically advantageous embodiment, only a single central drive for this means of a telescopic lifter is provided.
- the coupling of the lifting means not only cost saving the purchase of a single drive instead of separate drives for each lift is possible, but it is also a complex synchronization between the individual lifting avoided by automatically actuated by the coupling both lifting means of two telescopic stages simultaneously and moved when the central drive acts on these two coupled lifting means.
- the lifting means of the lower of the two movable telescopic stages are arranged substantially below the carrying point at which the load is introduced into the relevant support element. In this way, comparatively small moments, which act on the telescopic column of the telescopic lifter, which also supports its most economical design, since the individual components of the telescopic lifter must accordingly only record the lowest possible loads.
- the lifting means designed as spindle drives, each with a spindle and a nut are. This not only represents a cost-effective and reliable design of the lifting means, but also causes a high degree of security, since the spindles are usually self-locking, so in case of failure of the drive the telescopic lifter maintain their respective position even under load and not automatically by the be lowered acting load.
- the spindle drives act according to the present proposal as follows: the spindle of the lifting means of the lower movable telescopic stage is rotatably mounted, and on the spindle either up or down running mother is connected to the lower movable telescopic stage, that the lower movable telescopic stage in common is vertically movable with the nut relative to the spindle.
- the spindle of the lifting means of the upper movable telescopic stage is rotatably mounted and connected to the upper movable telescopic stage such that this rotatable spindle is vertically movable relative to the mother of the lifting means of the upper movable telescopic stage.
- the ratios of the individual lifting means of one and the same telescopic lift can be designed differently, so that the respective higher telescopic stages are extended slightly less far, as an underlying telescopic stage.
- the ratios of the individual lifting means of one and the same telescopic lift can be designed differently, so that the respective higher telescopic stages are extended slightly less far, as an underlying telescopic stage.
- the individual telescopic stages of a telescopic lifter are guided into each other by means of sliding guides.
- This particularly economical embodiment of the telescopic lifter ensures a large-scale guidance of the respective telescopic stage and thus a reduction of the forces acting on the telescopic stage, so that also thereby a particularly economical embodiment of the underfloor lifting system is supported.
- the design of the telescopic lifter can be carried out differently in adaptation to the respective intended lifting situation:
- the lifting device can be used, for example, as a bogie lifter, so that the support elements lift, for example, a track bridge on which the relevant bogie is.
- the telescopic lifter can be arranged comparatively far laterally next to the track or repair track in a conventional manner, so that there is a comparatively large cantilever arm between the telescopic column of the telescopic lifter and the support point at which the load is introduced into the support element.
- the distance between the individual lifting means is also comparatively large, corresponding to the length of the cantilever.
- the central drive between two lifting means of two telescopic stages may be arranged so that the driving force is transmitted uniformly to the two lifting means.
- the lifting device can be used for example as Wagenkastenab 1. Since the car body has a greater width than the track of a rail vehicle and accordingly the car body receptacles are provided outside the track, in this case, the mentioned cantilever arm is comparatively short, so that advantageously the lifting means of two telescopic stages are arranged as close as possible adjacent to each other, too In this case, allow the lowest possible moments to act on the guides. Therefore, in this embodiment of the telescopic lifter advantageously the central drive for the lifting means on one side and beyond the two lifting means of two telescopic stages arranged, so that these two lifting means, for example, the aforementioned spindles, can be arranged in the smallest possible distance from each other.
- the lifting means are to be arranged at a small distance from one another, they can advantageously be connected directly to one another by means of a coupling, for example by being fastened with their two ends to a respective shaft journal of a lifting means.
- the two provided in this example shaft journals can thus almost touch, without additional, the distance-increasing intermediate elements are provided so that the horizontal offset between the two lifting means can be kept as low as possible.
- the two lifting means can advantageously be connected to one another by means of a compensating coupling.
- Compensation couplings are used to compensate for misalignment and / or angle errors and are commercially available.
- the above-mentioned coupling which can serve for the direct connection of the two closely adjacent lifting means, can for example be designed as a compensating coupling. But even if additional, the distance-increasing intermediate elements between the lifting means are provided, may advantageously be provided a compensating coupling to avoid or reduce tension or vibration while the lifting means are driven.
- the lifting means are arranged at a comparatively large distance from one another, they may advantageously be connected to one another in an advantageous manner by means of a propeller shaft as an alternative to the above-mentioned arrangement of a central drive between two lifting means, so that in this case the central drive for the lifting means on one side and beyond the two lifting means is arranged.
- a propeller shaft as an alternative to the above-mentioned arrangement of a central drive between two lifting means, so that in this case the central drive for the lifting means on one side and beyond the two lifting means is arranged.
- This allows a particularly economical embodiment of the underfloor lifting system, since it can be dispensed with a deflection or transfer case, which deflects or distributes the driving force in two different directions.
- the choice of the drive shaft length with simple and economical means of the distance of the two lifting means can be adapted to a variety of requirements, for example, as regards the particular structural conditions or the location of the points to be supported in the vehicles to be lifted.
- Fig. 1 is denoted by 1 in total an underfloor lifting system, wherein for foundation a pit 2 is provided and Fig. 1 a cross section through the pit 2 shows, looking in the track longitudinal direction.
- a telescopic jack 3 is provided in each case, wherein in the longitudinal direction of the track behind each other at least two such telescopic lifter are provided.
- Each telescopic jack 3 has three telescopic stages 4, 5 and 6, of which the two upper telescopic stages 5 and 6 are vertically movable, while the lower telescopic stage 4 is permanently installed.
- the uppermost telescopic stage 6 has a support member 7 in the form of a cantilever, which at its remote from the telescopic stage 6, free end has a carrying point 8, at which the load is introduced into the support member 7 and thus in the entire telescopic lifter 3.
- the telescopic lifter 3 are designed as a bogie jack so that the support member 7 has a comparatively long length and the support point 8 has a comparatively large distance from the telescopic column, for example, from the upper movable telescopic stage 6, to which the support member 7 connects.
- two lifting means 9 and 10 are provided which are each designed as a spindle gear.
- the lower lifting means 9 are used to move the lower movable telescopic stage 5, so the middle of the three telescopic stages, up and down, while the upper lifting means 10 allow the height mobility of the upper movable telescopic stage 6.
- the lower lifting means 9 are arranged substantially below the carrying point 8, so that under the line of action of the load only low frictional forces between the individual telescopic stages 4, 5 and 6 arise, so that the leadership of the two movable telescopic stages 5 and 6 advantageously effective over a large area and economically available sliding guides 11 can be effected.
- the drive for both lifting means 9 and 10 is centrally, with a transfer case 12 between the two lifting means 9 and 10 is arranged. From the transfer case 12, two short drive shafts 17 each extend to a stub shaft 16 of the lifting means 9 and 10th
- a spindle 9-1 of the lower lifting means 9 is fixedly arranged, namely non-rotatable and not movable in height.
- a nut 9-2 of the lower lifting means 9 selectively runs up or down, whereby this nut 9-2 is rotated by the transfer case 12. Accordingly, due to this movement of the nut 9-2, the transfer case 12 also changes in height with respect to the fixed spindle 9-1.
- a second output of the transfer case 12 acts on a spindle 10-1 of the upper lifting means 10 and rotates this spindle 10-1 in rotation, which cooperates with a fixed, non-rotatable nut 10-2 of the upper lifting means 10.
- the nut 10-2 is disposed in the upper movable telescopic stage 6, so that this telescopic stage 6 can be selectively moved upwards or downwards by means of the rotating spindle 10-1 of the upper lifting means 10 with respect to the transfer case 12 and its respective height position.
- the gear ratio in the individual spindle gears is chosen so that at the same drive speed, from the transfer case 12, the lifting means 9 travel a greater distance than the lifting means 10, so that the upper movable telescopic stage 6 to a lesser extent from the lower movable telescopic stage. 5 is extended when the lower movable telescopic stage 5 is extended from the fixed lowermost telescopic stage 4.
- the transfer case 12 designed such that at the same input speed, the two mentioned short drive shafts 17 of the transfer case 12 and thus also the stub shafts 16 of the both lifting means 9 and 10 run at the same speed, so that the lifting means 9 and 10 are driven at the same speed.
- the different gear ratios of the lifting means 9 and 10 are effected by the slopes of the respective spindle gear. Deviating from the illustrated embodiment, however, can also be provided to make the two spindle gear of the lifting means 9 and 10 similar and to run the two short drive shafts 17 of the transfer case 12 at different speeds, so that the lifting means 9 are driven at a higher speed than the Lifting means 10.
- Fig. 1 the two opposite telescopic lifter 3 are shown in different states: On the left, the telescopic lifter 3 is shown in its extended position, in which the support element 7 assumes its maximum achievable height. On the right, however, the telescopic jack 3 is shown in its retracted state, so that the support member 7 terminates at its upper edge level with the ground.
- a repair track which is provided for example on the support elements 7, and runs above the support points 8, would thus be at floor level when the telescopic lift 3 as in Fig. 1 are shown lowered to the right.
- Fig. 2 shows the two lifting means 9 and 10 and arranged therebetween transfer case 12 in an embodiment of a telescopic lifter 3 as based on Fig. 1 explained. It can be seen that the central drive 14 of the telescopic jack 3, an electric motor is provided which acts on the transfer case 12, which may be configured for example as bevel gear or as bevel gear.
- Fig. 3 shows the drive elements of a telescopic lifter 3 in one embodiment as Wagenkastenab Stirr.
- the parallel offset between the two lifting means 9 and 10 is significantly lower in this embodiment than in the embodiment according to Fig. 1 or 2 in which the telescopic lifter 3 are each designed as a bogie lifter.
- the central drive 14 is arranged on one side beyond the two lifting means 9 and 10, so that accordingly no transfer case 12 is provided.
- the electric motor of the central drive 14 may be configured as a gear motor, as in Fig. 3 is indicated with the gear 15 provided there.
- the two lifting means 9 and 10 Due to the small distance between the lifting means 9 and 10 whose adjacent stub shafts 16 may be aligned substantially aligned with each other and directly without the interposition of gears, intermediate shafts or the like by means of a coupling, in particular a compensating coupling may be provided. Also in this case, the two lifting means 9 and 10 are driven at the same speed and have different gear ratios due to their different spindle pitches.
- the stub shafts 16 of the two lifting means 9 and 10 are shown in all drawings, and the short drive shafts 17 of the transfer case 12 are in the Fig. 1 and 2 recognizable. Connecting elements such. B. the aforementioned compensating coupling are not shown, however, which serve to connect the stub shafts 16 with each other or with the short drive shafts 17.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Invalid Beds And Related Equipment (AREA)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Unterflur-Hebeanlage (1), mit einer Hubeinrichtung, welche auf und ab verfahrbare Tragelemente (7) aufweist, wobei jedes Tragelement (7) einen so genannten Tragepunkt (8) aufweist, an welchem die Traglast in das Tragelement (7) einleitbar ist, wobei die Unterflur-Hebeanlage (1) mehrere Teleskopheber (3) aufweist, und ein Teleskopheber (3) wenigstens zwei höhenbewegliche Teleskopstufen (5, 6) aufweist, die Hubmittel (9, 10) der Teleskopstufen (5, 6) eines Teleskophebers (3) miteinander gekoppelt sind, ein zentraler Antrieb (14) für diese Hubmittel (9, 10) vorgesehen ist, und die Hubmittel (9) der unteren beweglichen Teleskopstufe im Wesentlichen unterhalb des Tragepunkts (8) angeordnet sind, wobei die Hubmittel (9, 10) als Spindeltriebe mit jeweils einer Spindel (9-1, 10-1) und einer Mutter (9-2, 10-2) ausgestaltet sind, wobei die Spindel (9-1) der Hubmittel (9) der unteren beweglichen Teleskopstufe (5) drehfest angeordnet ist, und eine auf der Spindel (9-1) wahlweise auf oder ab laufende Mutter (9-2) mit der unteren beweglichen Teleskopstufe (5) verbunden ist, derart, dass die untere bewegliche Teleskopstufe (5) gemeinsam mit der Mutter (9-2) relativ zu der Spindel (9-1) höhenbeweglich ist, und die die Spindel (10-1) der Hubmittel (10) der oberen beweglichen Teleskopstufe (6) drehbar angeordnet ist, und mit der oberen beweglichen Teleskopstufe (5) verbunden ist, derart, dass die Spindel (10-1) relativ zu der Mutter (10-2) der Hubmittel (10) der oberen beweglichen Teleskopstufe (6) höhenbeweglich ist.Underfloor lifting system (1), with a lifting device, which has movable support elements (7) up and down, wherein each support element (7) has a so-called support point (8) on which the load in the support element (7) can be introduced wherein the underfloor lifting system (1) has a plurality of telescopic lifters (3), and a telescopic lifter (3) has at least two telescopic elevators (5, 6) which can be moved vertically, the lifting means (9, 10) of the telescopic stages (5, 6) of a telescopic lifter (3 ) are coupled together, a central drive (14) for this lifting means (9, 10) is provided, and the lifting means (9) of the lower movable telescopic stage are arranged substantially below the carrying point (8), in which the lifting means (9, 10) are designed as spindle drives, each having a spindle (9-1, 10-1) and a nut (9-2, 10-2), wherein the spindle (9-1) of the lifting means (9) the lower movable telescopic stage (5) is rotatably mounted, and on the spindle (9-1) either up or down running mother (9-2) with the lower movable telescopic stage (5) is connected, such that the lower movable telescopic stage (5) is vertically movable together with the nut (9-2) relative to the spindle (9-1), and the spindle (10-1) of the lifting means (10) of the upper movable telescopic stage (6) is rotatably arranged, and is connected to the upper movable telescopic stage (5), such that the spindle (10-1) relative to the nut (10-2) of the lifting means (10) of the upper movable telescopic stage (6) is vertically movable.
Description
Die Erfindung betrifft eine Unterflur-Hebeanlage nach dem Oberbegriff des Anspruchs 1.The invention relates to an underfloor lifting system according to the preamble of
Eine Unterflur-Hebeanlage aus der
Um eine bestimmte Hubhöhe zu ermöglichen, muss bei der bekannten Unterflur-Hebeanlage eine Grube geschaffen werden, deren Tiefe das Maß der gewünschten Hubhöhe aufweist.In order to enable a certain lifting height, a pit must be created in the known underfloor lifting system, the depth of which has the degree of the desired lifting height.
Aus der
Aus der
Aus der
Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Unterflur-Hebeanlage dahingehend zu verbessern, dass diese mit einer möglichst niedrigen, d. h. möglichst flachen Grube verwirklicht werden kann und möglichst wirtschaftlich herstellbar ist.The invention has for its object to improve a generic underfloor lifting system to the effect that this with the lowest possible, d. H. flat as possible pit can be realized and is economically feasible.
Diese Aufgabe wird durch eine Unterflur-Hebeanlage mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben.This object is achieved by an underfloor lifting system with the features of
Die Erfindung schlägt mit anderen Worten vor, die Hubeinrichtung mit wenigstens zwei Teleskopstufen auszugestalten, so dass im zusammengeschobenen bzw. eingefahrenen Zustand die Hubeinrichtung erheblich weniger Bauhöhe benötigt als im ausgefahrenen Zustand. Das Fundament für die Unterflur-Hebeanlage kann also vergleichsweise flach ausfallen und erheblich niedriger sein als die ausgefahrene Hubeinrichtung. Hierdurch werden einerseits die Baukosten für die Unterflur-Hebeanlage vorteilhaft beeinflusst und zum Zweiten wird ein hohes Maß an Betriebssicherheit gegeben, beispielsweise in Gebieten mit hohem Grundwasserstand, in denen durch die entsprechend flache Ausgestaltung einer Grube das Eindringen von Grundwasser vermieden werden kann.In other words, the invention proposes to design the lifting device with at least two telescopic stages, so that in the collapsed or retracted state, the lifting device requires considerably less height than in the extended state. The foundation for the underfloor lifting system can therefore be relatively flat and be considerably lower than the extended lifting device. As a result, on the one hand, the construction costs for the underfloor lifting system are advantageously influenced and secondly, a high degree of operational reliability is given, for example, in areas with high groundwater levels, in which by the corresponding flat design of a pit penetration of groundwater can be avoided.
Vorschlagsgemäß ist kein zentrales teleskopierbares Hubelement vorgesehen, sondern vielmehr weist die Hubeinrichtung mehrere Teleskopheber auf, so dass beispielsweise unter jedem Punkt, der unterstützt und angehoben werden soll, jeweils ein Teleskopheber vorgesehen ist. Ein solcher Teleskopheber weist wenigstens zwei Teleskopstufen auf, die mit Hilfe von so genannten Hubmitteln höhenbeweglich sind. Dabei ist vorschlagsgemäß vorgesehen, dass die Hubmittel dieser beiden höhenbeweglichen Teleskopstufen miteinander gekoppelt sind und dass in wirtschaftlich vorteilhafter Ausgestaltung lediglich ein einziger zentraler Antrieb für diese Mittel eines Teleskophebers vorgesehen ist. Durch die Kopplung der Hubmittel wird nicht nur kostensparend die Anschaffung eines einzelnen Antriebs statt separater Antriebe für jedes einzelne Hubmittel möglich, sondern es wird auch eine aufwendige Synchronisation zwischen den einzelnen Hubmitteln vermieden, indem durch die Kopplung automatisch beide Hubmittel zweier Teleskopstufen gleichzeitig betätigt und bewegt werden, wenn der zentrale Antrieb auf diese beiden miteinander gekoppelten Hubmittel einwirkt.According to the proposal, no central telescopic lifting element is provided, but rather the lifting device has a plurality of telescopic lifters, so that in each case a telescopic lifter is provided below each point which is to be supported and lifted. Such a telescopic lifter has at least two telescopic stages, which are height-adjustable by means of so-called lifting means. It is proposed by the proposal that the lifting means of these two height-adjustable telescopic stages are coupled together and that in an economically advantageous embodiment, only a single central drive for this means of a telescopic lifter is provided. The coupling of the lifting means not only cost saving the purchase of a single drive instead of separate drives for each lift is possible, but it is also a complex synchronization between the individual lifting avoided by automatically actuated by the coupling both lifting means of two telescopic stages simultaneously and moved when the central drive acts on these two coupled lifting means.
Vorschlagsgemäß ist weiterhin vorgesehen, dass die Hubmittel der unteren der beiden beweglichen Teleskopstufen im Wesentlichen unterhalb des Tragepunktes angeordnet sind, an welchem die Traglast in das betreffende Tragelement eingeleitet wird. Auf diese Weise ergeben sich vergleichsweise geringe Momente, die auf die Teleskopsäule des Teleskophebers einwirken, was ebenfalls dessen möglichst wirtschaftliche Ausgestaltung unterstützt, da die einzelnen Komponenten des Teleskophebers dementsprechend nur möglichst geringe Belastungen aufnehmen müssen.According to the proposal, it is further provided that the lifting means of the lower of the two movable telescopic stages are arranged substantially below the carrying point at which the load is introduced into the relevant support element. In this way, comparatively small moments, which act on the telescopic column of the telescopic lifter, which also supports its most economical design, since the individual components of the telescopic lifter must accordingly only record the lowest possible loads.
Schließlich ist vorschlagsgemäß vorgesehen, dass die Hubmittel als Spindeltriebe mit jeweils einer Spindel und einer Mutter ausgestaltet sind. Dies stellt nicht nur eine kostengünstige und betriebssichere Ausgestaltung der Hubmittel dar, sondern bewirkt auch ein hohes Maß an Sicherheit, da die Spindeln üblicherweise selbsthemmend ausgestaltet sind, also bei Versagen des Antriebs die Teleskopheber auch unter Last ihre jeweilige Position beibehalten und nicht etwa automatisch durch die einwirkende Last abgesenkt werden. Die Spindeltriebe wirken dabei gemäß dem vorliegenden Vorschlag wie folgt zusammen: die Spindel der Hubmittel der unteren beweglichen Teleskopstufe ist drehfest angeordnet, und eine auf der Spindel wahlweise auf oder ab laufende Mutter ist derart mit der unteren beweglichen Teleskopstufe verbunden, dass die untere bewegliche Teleskopstufe gemeinsam mit der Mutter relativ zu der Spindel höhenbeweglich ist. Die Spindel der Hubmittel der oberen beweglichen Teleskopstufe hingegen ist drehbar angeordnet und mit der oberen beweglichen Teleskopstufe derart verbunden, dass diese drehbewegliche Spindel relativ zu der Mutter der Hubmittel der oberen beweglichen Teleskopstufe höhenbeweglich ist.Finally, it is proposed that the lifting means designed as spindle drives, each with a spindle and a nut are. This not only represents a cost-effective and reliable design of the lifting means, but also causes a high degree of security, since the spindles are usually self-locking, so in case of failure of the drive the telescopic lifter maintain their respective position even under load and not automatically by the be lowered acting load. The spindle drives act according to the present proposal as follows: the spindle of the lifting means of the lower movable telescopic stage is rotatably mounted, and on the spindle either up or down running mother is connected to the lower movable telescopic stage, that the lower movable telescopic stage in common is vertically movable with the nut relative to the spindle. The spindle of the lifting means of the upper movable telescopic stage, however, is rotatably mounted and connected to the upper movable telescopic stage such that this rotatable spindle is vertically movable relative to the mother of the lifting means of the upper movable telescopic stage.
Vorteilhaft können die Übersetzungsverhältnisse der einzelnen Hubmittel ein und desselben Teleskophebers unterschiedlich ausgestaltet sein, so dass die jeweils höher angeordneten Teleskopstufen geringfügig weniger weit ausgefahren werden, als eine darunter befindliche Teleskopstufe. So wird mit zunehmender Höhe des Teleskophebers für die einzelnen Teleskopstufen stets ein immer größeres Überlappungsmaß zur darunter befindlichen Teleskopstufe bewirkt und auf diese Weise eine besonders stabile Führung der oberen Teleskopstufen sichergestellt.Advantageously, the ratios of the individual lifting means of one and the same telescopic lift can be designed differently, so that the respective higher telescopic stages are extended slightly less far, as an underlying telescopic stage. Thus, with increasing height of the telescopic lifter for the individual telescopic stages always an ever greater overlap to the underlying telescopic stage causes and ensures a particularly stable guidance of the upper telescopic stages in this way.
Vorteilhaft kann vorgesehen sein, dass die einzelnen Teleskopstufen eines Teleskophebers mit Hilfe von Gleitführungen ineinander geführt sind. Diese besonders wirtschaftliche Ausgestaltung des Teleskophebers stellt eine großflächige Führung der jeweiligen Teleskopstufe sicher und damit eine Reduzierung der auf die Teleskopstufe einwirkenden Kräfte, so dass auch hierdurch eine besonders wirtschaftliche Ausgestaltung der Unterflur-Hebeanlage unterstützt wird.Advantageously, it can be provided that the individual telescopic stages of a telescopic lifter are guided into each other by means of sliding guides. This particularly economical embodiment of the telescopic lifter ensures a large-scale guidance of the respective telescopic stage and thus a reduction of the forces acting on the telescopic stage, so that also thereby a particularly economical embodiment of the underfloor lifting system is supported.
Vorteilhaft kann in Anpassung an die jeweils vorgesehene Hebesituation die Ausgestaltung der Teleskopheber unterschiedlich erfolgen:Advantageously, the design of the telescopic lifter can be carried out differently in adaptation to the respective intended lifting situation:
In einer ersten Ausgestaltung kann die Hubeinrichtung beispielsweise als Drehgestellheber benutzt werden, so dass die Tragelemente beispielsweise eine Gleisbrücke anheben, auf welcher das betreffende Drehgestell steht. In diesem Fall können die Teleskopheber in an sich bekannter Weise vergleichsweise weit seitlich neben dem Gleis bzw. Reparaturgleis angeordnet sein, so dass sich ein vergleichsweise großer Kragarm zwischen der Teleskopsäule des Teleskophebers und dem Tragepunkt ergibt, an welchem die Traglast in das Tragelement eingeleitet wird. Um möglichst kleine Momente in den Führungen der Teleskopstufen zu erreichen, ist vorzugsweise der Abstand zwischen den einzelnen Hubmitteln ebenfalls vergleichsweise groß, entsprechend der Länge des Kragarms. In diesem Fall kann vorteilhaft der zentrale Antrieb zwischen zwei Hubmitteln zweier Teleskopstufen angeordnet sein, so dass die Antriebskraft gleichmäßig auf die beiden Hubmittel übertragen wird.In a first embodiment, the lifting device can be used, for example, as a bogie lifter, so that the support elements lift, for example, a track bridge on which the relevant bogie is. In this case, the telescopic lifter can be arranged comparatively far laterally next to the track or repair track in a conventional manner, so that there is a comparatively large cantilever arm between the telescopic column of the telescopic lifter and the support point at which the load is introduced into the support element. In order to achieve the smallest possible moments in the guides of the telescopic stages, preferably the distance between the individual lifting means is also comparatively large, corresponding to the length of the cantilever. In this case, advantageously, the central drive between two lifting means of two telescopic stages may be arranged so that the driving force is transmitted uniformly to the two lifting means.
In einer zweiten Ausgestaltung kann die Hubeinrichtung beispielsweise als Wagenkastenabstützer benutzt werden. Da der Wagenkasten eine größere Breite als die Spurweite eines Schienenfahrzeugs aufweist und dementsprechend auch die Wagenkastenaufnahmen außerhalb des Gleises vorgesehen sind, ist in diesem Fall der erwähnte Kragarm vergleichsweise kurz, so dass vorteilhaft auch die Hubmittel zweier Teleskopstufen möglichst nahe zueinander benachbart angeordnet werden, um auch in diesem Fall möglichst geringe Momente auf die Führungen einwirken zu lassen. Daher ist bei dieser Ausgestaltung der Teleskopheber vorteilhaft der zentrale Antrieb für die Hubmittel einseitig und jenseits der beiden Hubmittel zweier Teleskopstufen angeordnet, so dass diese beiden Hubmittel, beispielsweise die erwähnten Spindeln, in einem möglichst geringen Abstand zueinander angeordnet werden können.In a second embodiment, the lifting device can be used for example as Wagenkastenabstützer. Since the car body has a greater width than the track of a rail vehicle and accordingly the car body receptacles are provided outside the track, in this case, the mentioned cantilever arm is comparatively short, so that advantageously the lifting means of two telescopic stages are arranged as close as possible adjacent to each other, too In this case, allow the lowest possible moments to act on the guides. Therefore, in this embodiment of the telescopic lifter advantageously the central drive for the lifting means on one side and beyond the two lifting means of two telescopic stages arranged, so that these two lifting means, for example, the aforementioned spindles, can be arranged in the smallest possible distance from each other.
Wenn die Hubmittel in geringem Abstand zueinander angeordnet werden sollen, können sie vorteilhaft mittels einer Kupplung direkt miteinander verbunden sein, indem diese beispielsweise mit ihren beiden Enden an jeweils einem Wellenzapfen eines Hubmittels befestigt ist. Die beiden in diesem Beispiel vorgesehenen Wellenzapfen können sich also nahezu berühren, ohne dass zusätzliche, den Abstand vergrößernde Zwischenelemente vorgesehen sind, so dass der horizontale Versatz zwischen den beiden Hubmitteln möglichst gering gehalten werden kann.If the lifting means are to be arranged at a small distance from one another, they can advantageously be connected directly to one another by means of a coupling, for example by being fastened with their two ends to a respective shaft journal of a lifting means. The two provided in this example shaft journals can thus almost touch, without additional, the distance-increasing intermediate elements are provided so that the horizontal offset between the two lifting means can be kept as low as possible.
Wenn die beiden Hubmittel so angeordnet werden sollen, dass ihre Antriebsachsen miteinander fluchten, können die beiden Hubmittel vorteilhaft mittels einer Ausgleichskupplung miteinander verbunden sein. Ausgleichskupplungen dienen dazu, Fluchtungs- und / oder Winkelfehler auszugleichen und sind handelsüblich. Sie können beispielsweise zwei metallische Kupplungselemente aufweisen, die jeweils mit einem der beiden Hubmittel verbunden sind und zwischen denen ein Ausgleichselement aus einem Elastomerwerkstoff angeordnet ist, mit welchem die beiden Kupplungselemente jeweils durch einen Formschluss zur Übertragung der Antriebskräfte zusammenwirken.If the two lifting means are to be arranged so that their drive axles are aligned, the two lifting means can advantageously be connected to one another by means of a compensating coupling. Compensation couplings are used to compensate for misalignment and / or angle errors and are commercially available. You can, for example, have two metallic coupling elements, which are each connected to one of the two lifting means and between which a compensating element is arranged made of an elastomeric material with which the two coupling elements cooperate in each case by a positive connection for transmitting the driving forces.
Die oben erwähnte Kupplung, die zur direkten Verbindung der beiden nah benachbarten Hubmittel dienen kann, kann beispielsweise als Ausgleichskupplung ausgestaltet sein. Aber auch wenn zusätzliche, den Abstand vergrößernde Zwischenelemente zwischen den Hubmitteln vorgesehen sind, kann vorteilhaft eine Ausgleichskupplung vorgesehen sein, um Verspannungen oder Vibrationen zu vermeiden bzw. zu verringern, während die Hubmittel angetrieben werden.The above-mentioned coupling, which can serve for the direct connection of the two closely adjacent lifting means, can for example be designed as a compensating coupling. But even if additional, the distance-increasing intermediate elements between the lifting means are provided, may advantageously be provided a compensating coupling to avoid or reduce tension or vibration while the lifting means are driven.
Wenn die Hubmittel in einem vergleichsweise großen Abstand zueinander angeordnet sind, können sie alternativ zu der oben erwähnten Anordnung eines zentralen Antriebs zwischen zwei Hubmitteln vorteilhaft mittels einer Gelenkwelle antriebswirksam miteinander verbunden sein, so dass auch in diesem Fall der zentrale Antrieb für die Hubmittel einseitig und jenseits der beiden Hubmittel angeordnet ist. Dies ermöglicht eine besonders wirtschaftliche Ausgestaltung der Unterflur-Hebeanlage, da auf ein Umlenk- bzw. Verteilergetriebe verzichtet werden kann, welches die Antriebskraft in zwei unterschiedliche Richtungen umlenkt bzw. verteilt. Zudem kann durch die Wahl der Gelenkwellenlänge mit einfachen und wirtschaftlichen Mitteln der Abstand der beiden Hubmittel an unterschiedlichste Anforderungen angepasst werden, beispielsweise was die jeweiligen baulichen Gegebenheiten oder die Lage der zu unterstützenden Punkte bei den anzuhebenden Fahrzeugen angeht.If the lifting means are arranged at a comparatively large distance from one another, they may advantageously be connected to one another in an advantageous manner by means of a propeller shaft as an alternative to the above-mentioned arrangement of a central drive between two lifting means, so that in this case the central drive for the lifting means on one side and beyond the two lifting means is arranged. This allows a particularly economical embodiment of the underfloor lifting system, since it can be dispensed with a deflection or transfer case, which deflects or distributes the driving force in two different directions. In addition, by the choice of the drive shaft length with simple and economical means of the distance of the two lifting means can be adapted to a variety of requirements, for example, as regards the particular structural conditions or the location of the points to be supported in the vehicles to be lifted.
Ausführungsbeispiele der Erfindung werden anhand der rein schematischen Darstellungen nachfolgend näher erläutert. Dabei zeigt
- Fig. 1
- zwei in einer Grube angeordnete Teleskopheber einer Unterflur-Hebeanlage,
- Fig. 2
- eine perspektivische Ansicht auf den Antrieb und zwei Hubmittel eines Drehgestellhebers, und
- Fig. 3
- in ebenfalls perspektivischer und in teilweise weggebrochener Darstellung einen zentralen Antrieb und zwei Hubmittel eines Wagenkastenabstützers.
- Fig. 1
- two telescopic lifters of an underfloor lifting system arranged in a pit,
- Fig. 2
- a perspective view of the drive and two lifting means of a bogie jack, and
- Fig. 3
- in a likewise perspective and partially broken away view, a central drive and two lifting means of a Wagenkastenabstützers.
In
Die oberste Teleskopstufe 6 weist ein Tragelement 7 in Form eines Kragarms auf, der an seinem von der Teleskopstufe 6 entfernten, freien Ende einen Tragepunkt 8 aufweist, an welchem die Traglast in das Tragelement 7 und somit in den gesamten Teleskopheber 3 eingeleitet wird.The uppermost
Bei dem dargestellten Ausführungsbeispiel der
Für die Höhenbeweglichkeit der beiden oberen, beweglichen Teleskopstufen 5 und 6 sind zwei Hubmittel 9 und 10 vorgesehen, die jeweils als Spindelgetriebe ausgestaltet sind. Die unteren Hubmittel 9 dienen dazu, die untere bewegliche Teleskopstufe 5, also die mittlere der drei Teleskopstufen, auf und ab zu bewegen, während die oberen Hubmittel 10 die Höhenbeweglichkeit der oberen beweglichen Teleskopstufe 6 ermöglichen.For the height mobility of the two upper, movable
Die unteren Hubmittel 9 sind dabei im Wesentlichen unterhalb des Tragepunktes 8 angeordnet, so dass unter der Wirklinie der Traglast nur geringe Reibkräfte zwischen den einzelnen Teleskopstufen 4, 5 und 6 entstehen, so dass die Führung der beiden beweglichen Teleskopstufen 5 und 6 vorteilhaft durch großflächig wirksame und wirtschaftlich erhältliche Gleitführungen 11 bewirkt werden kann.The lower lifting means 9 are arranged substantially below the
Der Antrieb für beide Hubmittel 9 und 10 erfolgt zentral, wobei ein Verteilergetriebe 12 zwischen den beiden Hubmitteln 9 und 10 angeordnet ist. Von dem Verteilergetriebe 12 erstrecken sich zwei kurze Antriebswellen 17 jeweils zu einem Wellenstumpf 16 der Hubmittel 9 und 10.The drive for both lifting means 9 and 10 is centrally, with a
Eine Spindel 9-1 der unteren Hubmittel 9 ist feststehend angeordnet, nämlich nicht drehbar und auch nicht in der Höhe beweglich. An dieser Spindel 9-1 läuft eine Mutter 9-2 der unteren Hubmittel 9 wahlweise auf oder ab, wobei diese Mutter 9-2 durch das Verteilergetriebe 12 in Drehung versetzt wird. Aufgrund dieser Bewegung der Mutter 9-2 verändert dementsprechend auch das Verteilergetriebe 12 seine Höhe in Bezug auf die feststehende Spindel 9-1.A spindle 9-1 of the lower lifting means 9 is fixedly arranged, namely non-rotatable and not movable in height. On this spindle 9-1, a nut 9-2 of the lower lifting means 9 selectively runs up or down, whereby this nut 9-2 is rotated by the
Ein zweiter Ausgang des Verteilergetriebes 12 wirkt auf eine Spindel 10-1 der oberen Hubmittel 10 und versetzt diese Spindel 10-1 in Drehung, die mit einer feststehenden, nicht drehbaren Mutter 10-2 der oberen Hubmittel 10 zusammenwirkt. Die Mutter 10-2 ist in der oberen beweglichen Teleskopstufe 6 angeordnet, so dass diese Teleskopstufe 6 mittels der sich drehenden Spindel 10-1 der oberen Hubmittel 10 wahlweise aufwärts oder abwärts bewegt werden kann, bezogen auf das Verteilergetriebe 12 und dessen jeweilige Höhenposition.A second output of the
Die Getriebeübersetzung in den einzelnen Spindelgetrieben ist dabei so gewählt, dass bei gleicher Antriebsdrehzahl, vom Verteilergetriebe 12 aus, die Hubmittel 9 einen größeren Weg zurücklegen als die Hubmittel 10, so dass die obere bewegliche Teleskopstufe 6 um ein geringeres Maß aus der unteren beweglichen Teleskopstufe 5 ausgefahren wird, als die untere bewegliche Teleskopstufe 5 aus der fest stehenden untersten Teleskopstufe 4 ausgefahren wird.The gear ratio in the individual spindle gears is chosen so that at the same drive speed, from the
Bei dem dargestellten Ausführungsbeispiel der
In
Die Wellenstümpfe 16 der beiden Hubmittel 9 und 10 sind in allen Zeichnungen jeweils dargestellt, und die kurzen Antriebswellen 17 des Verteilergetriebes 12 sind in den
Claims (8)
mit einer Hubeinrichtung, welche auf und ab verfahrbare Tragelemente (7) aufweist,
wobei jedes Tragelement (7) einen so genannten Tragepunkt (8) aufweist, an welchem die Traglast in das Tragelement (7) einleitbar ist,
wobei die Unterflur-Hebeanlage (1) mehrere Teleskopheber (3) aufweist,
und ein Teleskopheber (3) wenigstens zwei höhenbewegliche Teleskopstufen (5, 6) aufweist,
die Hubmittel (9, 10) der Teleskopstufen (5, 6) eines Teleskophebers (3) miteinander gekoppelt sind,
ein zentraler Antrieb (14) für diese Hubmittel (9, 10) vorgesehen ist,
und die Hubmittel (9) der unteren beweglichen Teleskopstufe im Wesentlichen unterhalb des Tragepunkts (8) angeordnet sind,
dadurch gekennzeichnet,
dass die Hubmittel (9, 10) als Spindeltriebe mit jeweils einer Spindel (9-1, 10-1) und einer Mutter (9-2, 10-2) ausgestaltet sind,
wobei die Spindel (9-1) der Hubmittel (9) der unteren beweglichen Teleskopstufe (5) drehfest angeordnet ist,
und eine auf der Spindel (9-1) wahlweise auf oder ab laufende Mutter (9-2) mit der unteren beweglichen Teleskopstufe (5) verbunden ist,
derart, dass die untere bewegliche Teleskopstufe (5) gemeinsam mit der Mutter (9-2) relativ zu der Spindel (9-1) höhenbeweglich ist,
und die die Spindel (10-1) der Hubmittel (10) der oberen beweglichen Teleskopstufe (6) drehbar angeordnet ist, und mit der oberen beweglichen Teleskopstufe (5) verbunden ist,
derart, dass die Spindel (10-1) relativ zu der Mutter (10-2) der Hubmittel (10) der oberen beweglichen Teleskopstufe (6) höhenbeweglich ist.Underfloor lifting system (1),
with a lifting device, which has movable support elements (7) up and down,
each support element (7) having a so-called carrying point (8), on which the load can be introduced into the support element (7),
wherein the underfloor lifting system (1) has a plurality of telescopic lifters (3),
and a telescopic lifter (3) has at least two height-adjustable telescopic stages (5, 6),
the lifting means (9, 10) of the telescopic stages (5, 6) of a telescopic jack (3) are coupled together,
a central drive (14) is provided for these lifting means (9, 10),
and the lifting means (9) of the lower movable telescopic stage are arranged substantially below the carrying point (8),
characterized,
that the lifting means (9, 10) are constructed as spindle drives, each having a spindle (9-1, 10-1) and a nut (9-2, 10-2),
wherein the spindle (9-1) of the lifting means (9) of the lower movable telescopic stage (5) is arranged rotationally fixed,
and one on the spindle (9-1) selectively up or down running mother (9-2) is connected to the lower movable telescopic stage (5),
such that the lower movable telescopic stage (5) is vertically movable together with the nut (9-2) relative to the spindle (9-1),
and the spindle (10-1) of the lifting means (10) of the upper movable telescopic stage (6) is rotatably arranged and connected to the upper movable telescopic stage (5),
such that the spindle (10-1) is vertically movable relative to the nut (10-2) of the lifting means (10) of the upper movable telescopic stage (6).
dadurch gekennzeichnet,
dass die Hubmittel (10) einer oberen Teleskopstufe (6) eine geringere Ãœbersetzung aufweisen, bezogen auf den zentralen Antrieb (14), als die Hubmittel (9) einer darunter angeordneten Teleskopstufe (5),
derart, dass durch den zentralen Antrieb (14) beide Teleskopstufen (5, 6) gleichzeitig bewegbar sind und dabei die obere Teleskopstufe (6) einen geringeren Weg zurücklegt als die untere Teleskopstufe (5).Underfloor lifting system according to claim 1,
characterized,
in that the lifting means (10) of an upper telescopic stage (6) have a lower ratio, relative to the central drive (14), than the lifting means (9) of a telescopic stage (5) arranged underneath,
in such a way that both telescopic stages (5, 6) can be moved simultaneously by the central drive (14) and the upper telescopic stage (6) covers a smaller distance than the lower telescopic stage (5).
dadurch gekennzeichnet,
dass die Teleskopstufen (4, 5, 6) mittels Gleitführungen ineinander geführt sind.Underfloor lifting system according to one of the preceding claims,
characterized,
that the telescopic stages (4, 5, 6) are guided in one another by means of sliding guides.
dadurch gekennzeichnet,
dass der zentrale Antrieb (14) zwischen zwei Hubmitteln (9, 10) zweier Teleskopstufen (5, 6) angeordnet ist.Underfloor lifting system according to one of the preceding claims,
characterized,
that the central drive (14) between two lifting means (9, 10) of two telescopic stages (5, 6) is arranged.
dadurch gekennzeichnet,
dass der zentrale Antrieb (14) einseitig jenseits der Hubmittel (9, 10) zweier Teleskopstufen (5, 6) angeordnet ist.Underfloor lifting system according to one of claims 1 to 3,
characterized,
in that the central drive (14) is arranged on one side beyond the lifting means (9, 10) of two telescopic stages (5, 6).
dadurch gekennzeichnet,
dass die Hubmittel (9, 10) mittels einer Gelenkwelle antriebswirksam miteinander verbunden sind.Underfloor lifting system according to claim 5,
characterized,
in that the lifting means (9, 10) are connected to one another by means of a drive shaft in order to drive.
dadurch gekennzeichnet,
dass die Hubmittel (9, 10) mittels einer Kupplung antriebswirksam direkt miteinander verbunden sind.Underfloor lifting system according to claim 5 or 6,
characterized,
in that the lifting means (9, 10) are connected directly to one another by means of a coupling in order to drive.
dadurch gekennzeichnet,
dass zwischen den Hubmitteln (9, 10) eine Ausgleichskupplung vorgesehen ist.Underfloor lifting system according to one of the preceding claims,
characterized,
in that a compensation coupling is provided between the lifting means (9, 10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15187909T PL3006388T3 (en) | 2014-10-08 | 2015-10-01 | Under-floor lifting installation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014114583.6A DE102014114583A1 (en) | 2014-10-08 | 2014-10-08 | Underfloor lifting system |
Publications (2)
Publication Number | Publication Date |
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EP3006388A1 true EP3006388A1 (en) | 2016-04-13 |
EP3006388B1 EP3006388B1 (en) | 2017-10-04 |
Family
ID=54251449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15187909.5A Active EP3006388B1 (en) | 2014-10-08 | 2015-10-01 | Under-floor lifting installation |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3006388B1 (en) |
DE (1) | DE102014114583A1 (en) |
ES (1) | ES2655080T3 (en) |
HU (1) | HUE035513T2 (en) |
PL (1) | PL3006388T3 (en) |
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WO2013133830A2 (en) * | 2012-03-08 | 2013-09-12 | Thomson Industries, Inc. | Telescoping linear actuator with screw drives |
JP2013252955A (en) * | 2012-06-08 | 2013-12-19 | Shangyin Sci & Technol Co Ltd | Lifting and lowering device |
EP2840282A2 (en) * | 2013-06-26 | 2015-02-25 | Aktiebolaget SKF | Actuator comprising limit switches |
-
2014
- 2014-10-08 DE DE102014114583.6A patent/DE102014114583A1/en not_active Withdrawn
-
2015
- 2015-10-01 ES ES15187909.5T patent/ES2655080T3/en active Active
- 2015-10-01 EP EP15187909.5A patent/EP3006388B1/en active Active
- 2015-10-01 PL PL15187909T patent/PL3006388T3/en unknown
- 2015-10-01 HU HUE15187909A patent/HUE035513T2/en unknown
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JPS62283250A (en) * | 1986-05-29 | 1987-12-09 | Shimadzu Corp | Extending and contracting device |
JPS62288768A (en) * | 1986-06-07 | 1987-12-15 | Shimadzu Corp | Extension and contraction device |
DE4028484C2 (en) | 1990-09-07 | 1993-05-13 | Otto Nussbaum Gmbh & Co Kg, 7640 Kehl, De | |
DE4304553A1 (en) | 1993-02-16 | 1994-08-18 | Zippo Hebetechnik Gmbh | Lifting platform, in particular a motor-vehicle lifting platform |
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DE202006010225U1 (en) | 2006-06-29 | 2006-08-31 | De Fahrzeuginstandhaltung Gmbh | Low floor components e.g. bogie, changing device for e.g. clock train, has changing mechanism designed as assembly tray attached to sink hole, where tray is connected with track standing at angle to rail sections in lowered condition |
DE102010010729A1 (en) * | 2010-03-09 | 2011-09-15 | Schaeffler Technologies Gmbh & Co. Kg | Lifting mechanism for patient couch, has lifting table supported in rolling bearing-linear guides in vertical movable manner, where table is connected with carriage that is vertically movable along rail of rolling bearing-linear guides |
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Also Published As
Publication number | Publication date |
---|---|
PL3006388T3 (en) | 2018-04-30 |
EP3006388B1 (en) | 2017-10-04 |
HUE035513T2 (en) | 2018-05-02 |
DE102014114583A1 (en) | 2016-04-14 |
ES2655080T3 (en) | 2018-02-16 |
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