EP2324562A1 - Plateforme élévatrice de chargement - Google Patents

Plateforme élévatrice de chargement

Info

Publication number
EP2324562A1
EP2324562A1 EP09778410A EP09778410A EP2324562A1 EP 2324562 A1 EP2324562 A1 EP 2324562A1 EP 09778410 A EP09778410 A EP 09778410A EP 09778410 A EP09778410 A EP 09778410A EP 2324562 A1 EP2324562 A1 EP 2324562A1
Authority
EP
European Patent Office
Prior art keywords
spindle
electric motors
drive
linear drive
tail lift
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.)
Withdrawn
Application number
EP09778410A
Other languages
German (de)
English (en)
Inventor
Martin Zimmermann
Thomas HÄRTEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Palfinger Tail Lifts GmbH
Original Assignee
MBB Palfinger GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MBB Palfinger GmbH filed Critical MBB Palfinger GmbH
Publication of EP2324562A1 publication Critical patent/EP2324562A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/44—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element
    • B60P1/4471—General means for controlling movements of the loading platform, e.g. hydraulic systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2087—Arrangements for driving the actuator using planetary gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H25/2454—Brakes; Rotational locks

Definitions

  • the invention relates to a tail lift for attachment to a vehicle according to the preamble of claim 1.
  • Tail lifts are used to facilitate the loading and unloading of vehicles with particularly heavy objects.
  • Such a tail lift has a preferably at the rear of a structure of a vehicle raised and lowered and usually hinged hinged loading platform.
  • the loading platform is movable by means of a hoist.
  • Conventional hoists have a linear drive or two linear drives for lifting and lowering the loading platform and a linear drive or two linear drives for pivoting the loading platform.
  • the linear drives known tail lifts are designed as hydraulic cylinders. Although so far almost all tail lifts for moving load platforms with hydraulic cylinders work, this has a significant disadvantage. This is that a hydraulic unit is required to operate the hydraulic cylinder and hydraulic hoses are to be laid from the hydraulic unit to the hydraulic cylinders. Another disadvantage of hydraulic cylinders results in damage, especially a leak in a hydraulic hose. Then oil escapes, causing serious pollution and environmental damage.
  • the invention is an object of the invention to provide a tail lift, which has simple, inexpensive and nevertheless reliable linear actuators for lifting, lowering and / or pivoting their loading platform.
  • a tail lift to solve this problem has the features of claim 1. Accordingly, it is provided that at least one linear drive has a plurality of electric motors. Each linear drive preferably has a plurality of electric motors both for lifting and lowering and for pivoting the loading platform. Because the respective linear drive has a plurality of electric motors, each electric motor only needs to apply a portion of the power required to actuate the lifting mechanism. Such electric motors can be relatively small, in particular slim, be formed. As a result, the electric motors can be accommodated in a space-saving manner in the linear drive, so that the linear drive builds only insignificantly larger than a hydraulic cylinder.
  • Each linear drive has a spindle drive, to which all electric motors of the respective linear drive are assigned in such a way that they simultaneously drive the spindle drive.
  • the sum of the driving forces of all electric motors thus gives the required force to drive the respective spindle drive.
  • the spindle drive has a threaded spindle and a corresponding spindle nut.
  • a spindle drive is provided that all electric motors of the linear drive of the spindle nut are assigned.
  • the spindle nut can be driven simultaneously by all electric motors. If necessary, the drive of the spindle nut can also be done only by a few electric motors.
  • the spindle nut is simultaneously driven to rotate by all or possibly only a few electric motors of the respective spindle drive. Due to the rotationally driven spindle nut, the non-rotatable threaded spindle can be retracted and extended like a piston rod of a hydraulic cylinder so that the lifting mechanism can be actuated by the linear drive according to the invention as well as by hydraulic cylinders; only not hydraulic, but electromechanical. Due to this electromechanical drive, the tail lift requires neither a hydraulic power pack nor hydraulic hoses to operate the lifting gear. According to a development of the invention, the electric motors of each linear drive are preferably arranged uniformly around the threaded spindle.
  • the electric motors are space-saving arranged in a star shape around the threaded spindle around. Because the individual electric motors only have to have a relatively small power, small and above all slender, in particular rod-shaped, electric motors can be used, which can be arranged in a space-saving manner in a star shape around the threaded spindle. This makes it possible to form a particularly compact electro-mechanical spindle drive. It is preferably provided to arrange the electric motors of each linear drive around the threaded spindle such that the longitudinal center axes of all the electric motors of the respective linear drive lie on a partial circular path extending concentrically to the longitudinal central axis of the threaded spindle and are preferably evenly distributed on the partial circular path. The electric motors are so planetary distributed around the threaded spindle around.
  • a preferred embodiment of the invention provides that the electric motors have a pinion and mesh the pinion of all electric motors of the respective linear drive with a common gear from which the spindle nut is driven.
  • the gear wheel driven jointly by the pinions of all the electric motors preferably surrounds all the pinions of the electric motors arranged in a star shape around the threaded spindle.
  • the gear is formed by a ring with an internal toothing, in which engage the pinion of all electric motors of the respective linear drive, wherein the gear concentrically surrounds the threaded spindle.
  • all electric motors drive the spindle nut of the respective linear drive via a planetary gear with a relatively large reduction. Due to this large reduction of the planetary gearbox, the relatively small electric motors generate one high lifting capacity of the linear drive, which corresponds to those of common hydraulic cylinders.
  • the pinions of the electric motors form planetary gears, which rotate only about their own axes and not - as usual in planetary gear - even around a circular path around the threaded spindle.
  • the linear drive is preferably provided with at least one brake.
  • the brake ensures that when the electric motors are stationary, the spindle nut can not rotate around the threaded spindle and thus does not automatically change the length of the spindle drive even with loaded loading platform. It is conceivable to assign each motor its own brake. Alternatively, however, it can also be provided to associate only the spindle nut with a single brake.
  • the brakes may be those that are automatically effective whenever the electric motors are stopped, thus not driving the spindle nuts in rotation.
  • brakes are particularly suitable, which are effective in interruptions of the power supply to the electric motors and automatically solve when the electric motors are powered by electricity.
  • the spindle drive is preferably designed as a roller screw drive.
  • a roller screw has a good efficiency and works essentially free of play.
  • Roller screw can also be designed self-locking, so that by the load on the loading platform with stationary electric motors of the
  • Threaded spindle spindle nuts can not be rotated and thereby the position of the threaded spindle does not change when the electric motors are stationary. In this case, brakes may be omitted.
  • the roller screw has a spindle nut, the rolling or rolling body has.
  • the rolling or rolling bodies are provided with a thread which is formed corresponding to the thread of the threaded spindle and meshes with this thread substantially free of play.
  • the threaded spindle can be moved axially forward and backward with relatively little friction by turning the spindle nut for retracting and extending the linear drive.
  • the linear drive has a housing in which on the one hand the spindle nut is rotatable and on the other hand, the threaded spindle is mounted axially displaceable. Furthermore, it is provided to accommodate in the housing also all the respective linear drive associated with electric motors.
  • the electric motors are mounted non-rotatably in the housing, whereby the rotatable pinions of the electric motors rotate the spindle nut in the housing.
  • the rotationally driven spindle nut rolls on the thread of the threaded spindle, whereby the threaded spindle is axially displaced. This displacement takes place on the longitudinal center axis of the housing, on which also the longitudinal center axis of the threaded spindle is located.
  • the threaded spindle is more or less pushed out of one end of the housing, depending on in which direction of the electric motors, the spindle nut is driven.
  • FIG. 1 is a view of a rear part of a vehicle with a Hublade- stage
  • Fig. 2 is a perspective view of the interior of a linear drive of the tail lift of Fig. 1, and
  • Fig. 3 is a central longitudinal section through the linear drive.
  • Fig. 1 shows a rear part of a vehicle, namely a truck 10.
  • the truck 10 has a structure 11, which is a so-called box body in the illustrated embodiment.
  • the structure 11 has an at least partially open or openable rear side 12.
  • This rear side 12 of the truck 10 is assigned a tail lift 13.
  • the tail lift 13 has a hoist 14, which is attached to a vehicle frame 15 of the truck 10 shown only schematically in the figure, for example, on a transverse support tube 16.
  • the tail lift 13 further has a loading platform 17.
  • the loading platform 17 is at a (As shown in FIG. 1) lower transverse edge 18 pivotally hinged to the lifting gear 14.
  • the loading platform 17 is also lowered and lifted by the hoist 14.
  • the closed position of the tail lift 13 is shown, in which the loading platform 17 is raised from the hoist 14 and pivoted in a vertical position behind the body 11 of the truck 10. In this position, the loading platform 17 is completely behind the body 11 of the truck 10th
  • the hoist 14 only partially shown in FIG. 1 has two identical, in parallel, vertical planes synchronously pivotable link arms 19.
  • the link arms 19 are articulated hinged to the lower transverse edge 18 of the loading platform 17.
  • the lifting mechanism 14 shown in the figure has a linear drive 20 for pivoting the loading platform 17 and a linear drive 21 for raising or lowering the loading platform 17 in the region of each of the two link arms 19.
  • Fig. 1 only the forward arm 19 associated linear drives 21 and 21 are shown.
  • the two remaining linear drives 20, 21, which are assigned to a rear link arm, are hidden in FIG. 1 by the front linear drives 20, 21 and thus are not visible.
  • tail lift 13 shown has two serving for pivoting the loading platform 17 linear actuators 20 and two for raising and lowering the loading platform 17 serving linear drives 21, it is also conceivable that the tail lift 13 only a single linear actuator 20 for pivoting the loading platform 17 and a single Linear drive 21 for lifting and lowering the loading platform 17 has. All linear drives 20 and 21 have the same dimensions. However, it is also conceivable that the linear drives 20 for pivoting the loading platform 17 have a different length than the linear drives 21 for lifting and lowering the loading platform 17.
  • linear drives 20 and 21 are designed as electromechanical linear drives 20 and 21.
  • Figs. 2 and 3 is the Linear drive 20 shown. This will be described in more detail below.
  • the linear drive 21 is formed. If necessary, it can also have the same dimensions.
  • the linear drive 20 has a spindle drive 22 with a threaded spindle 23 and a spindle nut 24 and according to the invention a plurality of rod-shaped electric motors 25. All electric motors 25 are preferably identical, in particular as a DC electric motors from the electrical system of the truck 10 with a voltage of in usually 24 V and possibly also 12 V can be supplied with energy.
  • a plurality of identical electric motors 25 are arranged in a star shape around the central threaded spindle 23 of the spindle drive 22.
  • five rod-shaped electric motors 25 are arranged around the threaded spindle 23 around.
  • the electric motors 25 are uniformly distributed around the threaded spindle 23 around, in such a way that the longitudinal center axes 26 are evenly distributed on a pitch circle 27, the center of which is located on a longitudinal central axis 28 of the threaded spindle 23.
  • the elongate electric motors 25, the diameter of which is insignificantly larger than the diameter of the threaded spindle 23, are distributed in a star-shaped manner around the threaded spindle 23, so that the threaded spindle 23 can still extend between the electric motors 25 (FIG. 2).
  • the electric motors 25 are all drivable simultaneously. If necessary, it is also conceivable to operate only a few electric motors 25.
  • a drive shaft stub 29 projecting from an end face of each electric motor 25 is provided with a pinion 30.
  • the pinions 30 of all electric motors 25 mesh in the manner of planet gears with internal teeth 31 of a sleeve-like gear 32.
  • the internal teeth 31 of the gear 32 surrounds all pinions 30 as an enveloping gear, whereby a transmission in the manner of a planetary gear with a relatively large reduction, in particular one more than tenfold reduction arises.
  • the sleeve-like or tubular Gear 32 is rotatably connected at one end face with the spindle nut 24 of the spindle drive 22, in particular screwed. This way is from the gear
  • the spindle nut 24 about the longitudinal central axis 28 of the threaded spindle 23 around rotating driven.
  • the pinions 30 of the electric motors 25 may also be arranged from the outside around a gear with an external toothing around.
  • the components of the linear drives 20, 21 are in a cylindrical housing
  • the housing 33 has a cylindrical housing tube 34 and end pieces 35, 36 on opposite end faces of the housing tube 34.
  • the housing tube 34 at the end faces preferably closed liquid-tight.
  • the end pieces 35, 36 are screwed to the end faces of the housing tube 34 and sealed by seals not shown in the figures.
  • All electric motors 25 of the linear drive 20 and 21 are fixed, namely non-rotatably and axially non-displaceably arranged or mounted in the housing 33.
  • the end piece 35 lying behind the electric motors 25 is provided with a fastening projection 37 which has a transverse through-bore 38.
  • the linear drive 20 or 21 is articulated with a fixed part of the vehicle frame 15, in particular the support tube 16 connected.
  • the opposite end piece 36 of the housing 33 has a central opening through which a free end 41 of the threaded spindle 23 extends.
  • the threaded spindle 23 - By turning the spindle nut 24, the threaded spindle 23 - depending on the direction of rotation - in the housing 33 retractable and moved out of the same.
  • the non-rotatable by a coupling to the loading platform 17 threaded spindle 23 is guided on opposite sides of the spindle nut 24 axially movable in the housing 33 substantially free of play, in bearings 46, 47.
  • the threaded spindle 23 only in the Store spindle nut 24.
  • Fig. 3 shows the fully retracted threaded spindle 23.
  • the spindle nut 24 is rotatable with bearings 42, but stored axially immovable in the housing tube 34.
  • the spindle nut 24 shown in the figures only with their outer contours has in the simplest case a corresponding to the external thread on the threaded spindle 23 internal thread. This can be single or multi-start fine thread.
  • the spindle drive 22 is provided with a plurality of rolling or rolling body having spindle nut 24.
  • the roller or roller bodies have on the outside at least partially a thread which corresponds to the external thread of the threaded spindle 23, namely that is in meshing engagement.
  • Such a trained spindle nut 24 is used for smooth Ste Trentsungsrud conversion of the rotational movement of the spindle nut 24 in an axial movement of the threaded spindle 23rd
  • spindle drive 22 is also conceivable to form the spindle drive 22 as a roller or recirculating ball drive, in particular a roller screw drive.
  • the spindle drive 22 may be self-locking. It is also conceivable a spindle drive 22 without a self-locking.
  • the linear drive 20 or 21 furthermore has a brake 43.
  • the brake 43 is designed so that it blocks the rotatability of the tubular or cup-shaped gear 32 for driving the spindle nut 24.
  • the brake 43 has an axially movable on the longitudinal central axis 28 of the threaded spindle 23 brake disc 44, against an annular surface 45 of the cup-shaped, hollow gear 32 presses when the brake is active, namely the rotatability of the spindle nut 24 is prevented.
  • the brake 43 is active when the electric motors 25 are stopped, so are not supplied with power.
  • the brake disk 44 is then mechanically pressed by at least one spring or magnetically by at least one permanent magnet against the annular surface 45 of the hollow gear 32.
  • the brake 43 is electrically disabled during operation of the electric motors 25, for example, by an electromagnet, the brake disc 44 is moved away from the annular surface 45 of the gear 32 and lifted off.
  • all electric motors 25 of the respective linear drive 20, 21 are driven simultaneously, with the same speed. But it is also conceivable, in particular when lowering the loading platform 18 or even when swiveling down the same, for which less force is required to drive only a single electric motor 25 or a part of the electric motors 25 of each linear drive 20, 21.
  • the selected driven electric motors 25 can be operated at a higher speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

Des plateformes élévatrices de chargement pour des camions comportent une plateforme de chargement pouvant être soulevée et abaissée ainsi que basculée par un dispositif de levage. Le dispositif de levage dispose d'un vérin hydraulique destiné à soulever et abaisser ainsi que basculer la plateforme de chargement. Le fonctionnement du vérin hydraulique nécessite un groupe hydraulique et des conduites hydrauliques relativement épaisses. L'invention concerne une plateforme élévatrice de chargement qui est soulevée, abaissée et basculée par des entraînements linéaires électriques (20). Les entraînements linéaires (20) sont équipés d'une manière particulière de plusieurs moteurs électriques (25) en forme de barres qui entraînent ensemble une roue d'engrenage (32). La roue d'engrenage (32) peut faire tourner un écrou (24) sur une broche filetée (23). De cette manière, la broche filetée (23) peut être décalée axialement comme des tiges de piston de vérins hydrauliques. En raison des entraînements linéaires électriques (20), la plateforme élévatrice de chargement de l'invention n'a besoin ni de groupe hydraulique ni de conduite hydraulique.
EP09778410A 2008-09-16 2009-09-08 Plateforme élévatrice de chargement Withdrawn EP2324562A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008047521A DE102008047521A1 (de) 2008-09-16 2008-09-16 Hubladebühne
PCT/EP2009/006521 WO2010031511A1 (fr) 2008-09-16 2009-09-08 Plateforme élévatrice de chargement

Publications (1)

Publication Number Publication Date
EP2324562A1 true EP2324562A1 (fr) 2011-05-25

Family

ID=41466731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09778410A Withdrawn EP2324562A1 (fr) 2008-09-16 2009-09-08 Plateforme élévatrice de chargement

Country Status (4)

Country Link
US (1) US20110280699A1 (fr)
EP (1) EP2324562A1 (fr)
DE (1) DE102008047521A1 (fr)
WO (1) WO2010031511A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021431B1 (nl) * 2013-04-30 2015-11-19 Jana Nv Hydraulisch liftsysteem
DE102014203999A1 (de) 2014-03-05 2015-09-24 Volkswagen Aktiengesellschaft Elektrischer Antrieb, Verfahren zu dessen Betrieb und serieller Hybridantriebsstrang für ein Kraftfahrzeug
US10100541B1 (en) 2017-03-30 2018-10-16 Joe Green Pte. Ltd. Precast lightweight wall panel installation machine
GB2569992B (en) * 2018-01-08 2022-11-30 Franksson Gretar Linear actuator
EP3715667B1 (fr) * 2019-03-26 2024-03-06 Tana Oy Dispositif de gestion de déchets et système d'alimentation modulaire pour un tel dispositif
WO2022119607A1 (fr) * 2020-12-04 2022-06-09 Safe Isolations Llc Système d'activation pour un bouchon de pipeline
DE102021124585A1 (de) 2021-09-22 2023-04-06 Palfinger Tail Lifts Gmbh Hubladebühne

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DE2136840A1 (de) * 1971-07-23 1973-02-01 Friedrich Meyer Elektromotorisches antriebs-aggregat
DE102006000994A1 (de) * 2005-07-22 2007-02-01 Mb-Metallbaubeteiligungsgesellschaft Mbh Ladebordwand

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GB8408346D0 (en) * 1984-03-30 1984-05-10 Airlec Vehicles Ltd Mobile lift loaders
DE3501477A1 (de) * 1985-01-15 1986-07-17 Jaroslav Dipl.-Ing. 1000 Berlin Tecinsky Vorrichtung zur automatischen steuerung der bewegung der ventilregelachse von motorbetriebenen hochleistungsventilen
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US5588793A (en) * 1995-03-02 1996-12-31 Chang; Hueng-San Elevator mechanism for vehicle
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EP1541412A1 (fr) * 2003-12-09 2005-06-15 Sörensen Hydraulik Zweigniederlassung, Ulfborg, Filial af Sörensen Hydraulik GmbH, Tyskland Système de hayon élévateur
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Publication number Priority date Publication date Assignee Title
DE2136840A1 (de) * 1971-07-23 1973-02-01 Friedrich Meyer Elektromotorisches antriebs-aggregat
DE102006000994A1 (de) * 2005-07-22 2007-02-01 Mb-Metallbaubeteiligungsgesellschaft Mbh Ladebordwand

Non-Patent Citations (1)

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Title
See also references of WO2010031511A1 *

Also Published As

Publication number Publication date
DE102008047521A1 (de) 2010-04-15
WO2010031511A1 (fr) 2010-03-25
US20110280699A1 (en) 2011-11-17

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