EP1732840A1 - Dispositif de levage - Google Patents

Dispositif de levage

Info

Publication number
EP1732840A1
EP1732840A1 EP05729517A EP05729517A EP1732840A1 EP 1732840 A1 EP1732840 A1 EP 1732840A1 EP 05729517 A EP05729517 A EP 05729517A EP 05729517 A EP05729517 A EP 05729517A EP 1732840 A1 EP1732840 A1 EP 1732840A1
Authority
EP
European Patent Office
Prior art keywords
lifting device
drive unit
central joint
spindle
lifting
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.)
Granted
Application number
EP05729517A
Other languages
German (de)
English (en)
Other versions
EP1732840B1 (fr
Inventor
Paul Weidner
Konrad Pieger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1732840A1 publication Critical patent/EP1732840A1/fr
Application granted granted Critical
Publication of EP1732840B1 publication Critical patent/EP1732840B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0666—Multiple scissor linkages vertically arranged

Definitions

  • the invention relates to a lifting device with an upper part and a lower part, with a lifting linkage connecting the upper part to the lower part, with at least two partial linkages connected to one another via a central joint, and with a drive unit for adjusting the height of the upper part.
  • WO 98/46137 shows such a lifting device for height adjustment of a patient couch.
  • Parallelogram constructions are used as lifting rods.
  • a disadvantage of the known constructions is that they require a relatively large amount of space.
  • particularly high forces are required for height adjustment, which are also not constant. Different travel speeds also occur when adjusting the height.
  • the known solutions are too large, structurally complex and require control that is too complicated.
  • a scissor construction is used as a partial linkage.
  • the installation space required for the lifting device can be greatly minimized compared to known designs. If, for example, the lifting linkage consists of two articulated scissor structures, this double scissor can be used to adjust the height of a patient bed provided on the upper scissor pack in a confined space.
  • a triple or quadruple scissor mechanism can be used if the application requires it. Due to the design, the use of a multi-scissor construction also results in a particularly high degree of rigidity and deflection resistance when absorbing lateral forces.
  • the drive unit is designed for a linear movement of the central joint in the vertical direction. This is preferably achieved by the drive unit engaging directly below the central joint. This not only achieves a constant travel speed.
  • the device according to the invention is also characterized by almost constant active forces and particularly precise synchronism. Since preferably only a single drive unit is used, no separate synchronization control is required. An arcuate pivoting of the lifting rod and the associated increased space requirements are avoided.
  • the drive unit has a spindle and a motor.
  • this type of drive unit is comparatively low-maintenance.
  • it has proven particularly advantageous ne proven arrangement in which a vertically extending spindle is driven by a corresponding gear from an electric motor, the axis of rotation of which is perpendicular to the spindle axis. This enables a particularly space-saving construction of the lifting device.
  • a trapezoidal spindle is preferably used as the spindle.
  • spindle instead of this self-locking type of spindle, other spindles, for example ball screws, can also be used.
  • the spindle, motor and transmission are preferably designed such that the spindle flanks are always under load. In contrast to hydraulic cylinders, the working paths of which vary in the course of operation due to the design, the present drive unit is therefore free of play, i.e. there is no return game.
  • the motor is attached to the lower part, for example on a base plate. This has the advantage that there is sufficient space for the motor control above the motor. In addition, no movable cable routing is required.
  • a movable motor is provided in an alternative embodiment, which is attached to the central joint and moves up and down on the spindle.
  • FIG. 1 shows a perspective view of a first embodiment of the invention
  • FIG. 2 shows a perspective view of a second embodiment of the invention
  • the lifting device 1 essentially consists of a lower part in the form of a base plate 2, an upper part in the form of a patient couch 3 and a lifting rod, cf. FIG 1.
  • the lifting linkage is designed as a double scissor mechanism or double scissors 4. In other words, it comprises two scissors packages 5, 6 aJ s Tei 1 linkage, which are articulated together.
  • the lower pair of scissors 6 is articulated to the base plate 2 with its front scissor feet 7.
  • the rear scissor feet 8 of the lower pair of scissors 6 are connected to one another by a runner 9 which, when the double scissors 4 open and close, runs back and forth in the running direction 11 on a running rail 10 fastened to the base plate 2 (cf. FIG. 2).
  • a horizontally arranged electric motor 12 is fastened on the base plate 2.
  • a hand crank for the emergency operation of the lifting device 1 can be attached to the end of the electric motor 12 facing the rear scissor feet 8 (not shown).
  • the axis of rotation 13 of the electric motor 12 runs parallel to the running direction 11 of the rotor 9. Above the electric motor 12 there is sufficient space for the arrangement of a motor control (not shown).
  • a gear transmission 14 is located between the front scissor feet 7, which converts the rotary movement of the electric motor 12 into a linear movement of a telescopic spindle 15 running perpendicular to the axis of rotation 13 of the electric motor 12, which between the front scissor feet 7 and below the front central joint 16 of the double scissors 4 is arranged.
  • the telescopic spindle 15 is designed as a trapezoidal screw joint (ACME spindle) and is articulated with its spindle head via a cross connection 17 to the front central joint 16 of the double scissors 4.
  • the electric motor 12 is switched on and the telescopic spindle 15 is extended or retracted.
  • the central joint 16 of the double scissors 4 executes a linear movement in the vertical direction 18 at a constant travel speed, while the rotor 9 moves in the running direction 11.
  • the axis of rotation 13 of the electric motor 12 extends perpendicular to the spindle axis.
  • the gear 14 is a self-locking gear.
  • the spindle flanks are always under load, so that the telescopic spindle 15 has no return play.
  • the absolute encoder of a measuring system is attached directly to the telescopic spindle 15 (not shown).
  • a movable motor 19 is provided, cf. FIG. 2.
  • the electric motor 19 is fixed on the central joint 16 of the double scissors 4 and moves up and down when the double scissors 4 are opened and closed on a screw spindle 20 fixed on the lifting plate 2.
  • this embodiment corresponds to the embodiment described above, in particular with regard to the principles of action.
  • the invention enables a lifting device 1 that is particularly small

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

L'invention concerne un dispositif de levage (1) comportant une partie supérieure (3), une partie inférieure (2), une tringlerie de levage (4) connectant la partie supérieure (3) à la partie inférieure (2), présentant au moins deux tringleries partielles (5, 6) connectées par l'intermédiaire d'une articulation centrale (16), et une unité d'entraînement (12, 14, 15, 19) destinée au réglage en hauteur de la partie supérieure (3). Pour mettre en oeuvre un dispositif de levage particulièrement simple (1), l'unité d'entraînement (12, 14, 15, 19) entre en prise avec l'articulation centrale (16).
EP05729517A 2004-04-05 2005-03-16 Dispositif de levage Active EP1732840B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004016728A DE102004016728A1 (de) 2004-04-05 2004-04-05 Hebevorrichtung
PCT/EP2005/051223 WO2005097662A1 (fr) 2004-04-05 2005-03-16 Dispositif de levage

Publications (2)

Publication Number Publication Date
EP1732840A1 true EP1732840A1 (fr) 2006-12-20
EP1732840B1 EP1732840B1 (fr) 2011-04-27

Family

ID=34963362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05729517A Active EP1732840B1 (fr) 2004-04-05 2005-03-16 Dispositif de levage

Country Status (5)

Country Link
US (1) US20070221895A1 (fr)
EP (1) EP1732840B1 (fr)
CN (1) CN100564230C (fr)
DE (2) DE102004016728A1 (fr)
WO (1) WO2005097662A1 (fr)

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US8016266B2 (en) * 2006-12-04 2011-09-13 Bogert Richard W Portable apparatus and method for lifting a vehicle that compensates for lateral motion of the vehicle
AR058881A1 (es) * 2006-12-28 2008-02-27 Curtiembres Fonseca S A Aparato para predeterminacion del envejecimiento de materiales ante la exposicion luminica
US20090230368A1 (en) * 2008-03-14 2009-09-17 Bae Systems Land & Armaments L.P. Adaptable beam lifter element (able) system
DE102009027972A1 (de) * 2009-07-23 2011-02-03 Waldner Labor- Und Schuleinrichtungen Gmbh Scherenhubvorrichtung
CN101993016B (zh) 2009-08-12 2014-07-09 鸿富锦精密工业（深圳）有限公司 升降机构
TWI417236B (zh) * 2009-08-20 2013-12-01 Hon Hai Prec Ind Co Ltd 升降機構
CN102879692B (zh) * 2012-10-16 2014-11-05 山东电力集团公司电力科学研究院 一种多旋翼无人机检测绝缘子方法与装置
CN103169580B (zh) * 2013-03-20 2016-03-16 三峡大学 腰椎颈椎调理床
US20160213541A1 (en) * 2013-08-30 2016-07-28 General Electric Company Table driving system for patient table
CN103787231A (zh) * 2014-02-27 2014-05-14 张家港市华机环保新能源科技有限公司 一种双剪叉式升降平台
DE102014209016A1 (de) 2014-05-13 2015-11-19 Siemens Aktiengesellschaft Kippbare Patientenlagerungsvorrichtung und Verfahren zum Kippen einer Patientenlagerungsvorrichtung
DE102014210250B4 (de) * 2014-05-28 2021-04-01 Ewellix AB Verstelleinrichtung für eine in einer Höhe verstellbare Ablage sowie Verfahren zum Verändern einer Höhe einer Ablage
DE102014210253B4 (de) 2014-05-28 2016-02-11 Aktiebolaget Skf Getriebe für eine in einer Höhe verstellbare Ablage sowie Verfahren zum Verändern einer Höhe einer Ablage
CN104217780B (zh) * 2014-09-25 2017-01-18 深圳市沃尔核材股份有限公司 辐照传送装置
WO2016112452A1 (fr) 2015-01-14 2016-07-21 Centre For Imaging Technology Commercialization (Cimtec) Appareil d'équilibrage et/ou procédé de support de charge
CN104739594A (zh) * 2015-03-27 2015-07-01 苏州市天烨医疗设备有限公司 医用升降装置
WO2017031600A1 (fr) 2015-08-27 2017-03-02 Focal Healthcare Inc. Interface mobile entre un moteur pas-à-pas et un stabilisateur
CN107473143A (zh) * 2016-06-08 2017-12-15 长沙华恒机器人系统有限公司 一种重型液压行走升降小车
CN106629485A (zh) * 2017-01-10 2017-05-10 成都聚立汇信科技有限公司 新型电力用升降平台
CN107284303B (zh) * 2017-05-26 2023-04-18 安道拓(重庆)汽车部件有限公司 具有前后伸缩功能的汽车座椅头枕
CN107601347A (zh) * 2017-11-07 2018-01-19 中山市巨洋金属制品有限公司 一种升降平台
CN108309773A (zh) * 2018-02-11 2018-07-24 安徽鑫诺医疗设备有限公司 一种自动化艾灸床
CN109061707A (zh) * 2018-07-23 2018-12-21 河南省核工业放射性核素检测中心 基于无人机的核污染区域核辐射监测系统及方法
CN110464581A (zh) * 2019-08-26 2019-11-19 青岛大学附属医院 一种便捷式临床麻醉科用辅助麻醉装置
CN113307174A (zh) * 2020-02-27 2021-08-27 沈阳新松机器人自动化股份有限公司 推杆结构的举升设备
CN112223768A (zh) * 2020-08-26 2021-01-15 深圳市航世科技有限公司 一种剪刀脚的生产工艺
EP4222101A1 (fr) * 2020-10-01 2023-08-09 Chairman, Defence Research & Development Organisation (DRDO) Système de manipulation d'articles
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USD1022380S1 (en) * 2021-05-06 2024-04-09 Chester Brown Industries Pty Ltd Impact bit lifter

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Also Published As

Publication number Publication date
DE102004016728A1 (de) 2005-10-13
US20070221895A1 (en) 2007-09-27
CN101014530A (zh) 2007-08-08
EP1732840B1 (fr) 2011-04-27
DE502005011301D1 (de) 2011-06-09
CN100564230C (zh) 2009-12-02
WO2005097662A1 (fr) 2005-10-20

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