EP1732840B1 - Dispositif de levage - Google Patents

Dispositif de levage Download PDF

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Publication number
EP1732840B1
EP1732840B1 EP05729517A EP05729517A EP1732840B1 EP 1732840 B1 EP1732840 B1 EP 1732840B1 EP 05729517 A EP05729517 A EP 05729517A EP 05729517 A EP05729517 A EP 05729517A EP 1732840 B1 EP1732840 B1 EP 1732840B1
Authority
EP
European Patent Office
Prior art keywords
lifting device
lifting
linkage
drive unit
bottom part
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.)
Active
Application number
EP05729517A
Other languages
German (de)
English (en)
Other versions
EP1732840A1 (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
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Siemens AG
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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

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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 link connecting the upper part to the lower part with at least two sub-linkages interconnected via a central joint and with a drive unit for adjusting the height of the upper part.
  • Such lifting devices are known from the prior art. So shows, for example WO 98/46137 Such a lifting device for height adjustment of a patient bed.
  • Parallelogram constructions are used as lifting rods.
  • a disadvantage of the known constructions is that they require a relatively large amount of space.
  • particularly large forces are required for height adjustment, which are also not constant. Also occur in the height adjustment different traversing speeds.
  • the known solutions are in other words too large, too expensive to construct and require too complicated control.
  • the drive unit engages a center joint of a multi-part lifting linkage. This makes possible a particularly simple and compact design of the lifting device.
  • a scissors construction is used as a partial linkage.
  • the space required for the lifting device can be greatly minimized compared to known types. If the lifting linkage consists, for example, of two articulated scissor-type constructions, then a height adjustment of a patient couch provided on the upper scissors packet can be carried out in a confined space with this double scissors.
  • a triple or quadruple scissoring mechanism can be used, if required by the application. Due to the design, the use of a multiple scissors construction also results in a particularly high rigidity and deflection resistance in the absorption of laterally occurring forces.
  • the drive unit is designed for a rectilinear movement of the central joint in the vertical direction. This is preferably achieved in that the drive unit acts directly below the middle joint. This not only achieves a constant travel speed.
  • the device according to the invention is also characterized by almost constant effective forces and a particularly exact synchronization. Since preferably only a single drive unit is used, no separate synchronization control is required. An arcuate pivoting of the lifting linkage and an associated increased space requirements are avoided.
  • the drive unit has a spindle and a motor.
  • this type of drive unit is relatively low maintenance.
  • a particularly advantageous in this context has a Arrangement proven in which a vertically extending spindle is driven via a corresponding gear by an electric motor whose axis of rotation is perpendicular to the spindle axis. As a result, a particularly space-saving construction of the lifting device is possible.
  • the spindle is preferably a trapezoidal spindle is used. Instead of this self-locking spindle type other spindles, such as ball screws can be used.
  • Spindle, motor and gear are preferably designed such that the spindle flanks are always under load. In contrast to hydraulic cylinders whose working distances vary during operation, the present drive unit is therefore backlash-free, i. 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 above the engine for the engine control. In addition, no moving cable guide is required.
  • a movable motor is provided in an alternative embodiment, which is fixed to the center joint and on the spindle moves up and down.
  • 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 linkage, cf. FIG. 1 ,
  • the lifting linkage is designed as a double scissor mechanism or double scissors 4. In other words, it comprises two scissor packs 5, 6 as partial linkages, which are articulated to one another.
  • the lower scissors package 6 is pivotally connected with its front scissor feet 7 with the bottom plate 2.
  • the rear scissor feet 8 of the lower pair of scissors 6 are connected to each other via a runner 9, which when opening and closing the double scissors 4 on a fixed to the bottom plate 2 running rail 10 in the running direction 11 reciprocates (see. FIG. 2 ).
  • a horizontally arranged electric motor 12 is mounted on the bottom plate 2.
  • a hand crank for the emergency operation of the lifting device 1 can be recognized (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 is sufficient space for the arrangement of a motor controller (not shown).
  • a gear transmission 14 which converts the rotational movement of the electric motor 12 into a linear movement of a perpendicular to the axis of rotation 13 of the electric motor 12 extending telescopic spindle 15, which is between the front scissor feet 7 and below the front center joint 16 of the double scissors is arranged.
  • the telescopic spindle 15 is formed as a trapezoidal screw spindle (ACME spindle) and hinged to its spindle head via a transverse connection 17 with the front center joint 16 of the double shear 4.
  • the electric motor 12 is turned on and the telescopic spindle 15 extended or retracted.
  • the center joint 16 of the double scissors 4 performs a rectilinear 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 transmission 14 is a self-locking transmission.
  • 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 mounted directly on the telescopic spindle 15 (not shown).
  • a movable motor 19 is provided, cf. FIG. 2 ,
  • the electric motor 19 is fixed to the center joint 16 of the double shear 4 and moves when opening and closing the double scissors 4 on a fixed to the bottom plate 2 screw 20 up and down.
  • this embodiment is consistent with the embodiment described above, in particular with regard to the principles of action.
  • FIG. 3 In which a top view is shown on a lifting device without the upper part.

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).

Claims (7)

  1. Dispositif de levage (1) comprenant
    - une partie supérieure (3) et une partie inférieure (2),
    - une tringle de levage (4) reliant la partie supérieure (3) à la partie inférieure (2), laquelle comprend au moins deux tringles partielles (5, 6) reliées l'une à l'autre par une articulation centrale (16) et conçues sous forme de constructions à ciseaux, et
    - une unité d'entraînement (12, 14, 15, 19) pour le réglage en hauteur de la partie supérieure (3),
    caractérisé en ce que l'unité d'entraînement (12, 14, 15, 19) a prise sur l'articulation centrale (16) de telle sorte que celle-ci et donc la tringle de levage (4) peuvent se déplacer dans la direction verticale, la tringle de levage (4) s'appuyant avec des pieds à ciseaux (7, 8), espacés les uns des autres, de la tringle partielle (6) inférieure sur la partie inférieure (2).
  2. Dispositif de levage (1) selon la revendication 1,
    caractérisé en ce que l'unité d'entraînement (12, 14, 15, 19) présente une broche (15) fixée sur l'articulation centrale (16) et un moteur (12, 19).
  3. Dispositif de levage (1) selon la revendication 2,
    caractérisé en ce que la broche (15) est une broche en trapèze.
  4. Dispositif de levage (1) selon la revendication 2 ou 3,
    caractérisé en ce que le moteur (12) est fixé sur la partie inférieure (2).
  5. Dispositif de levage (1) selon la revendication 2 ou 3,
    caractérisé en ce que le moteur (19) est fixé sur l'articulation centrale (16).
  6. Dispositif de levage (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la tringle partielle (6) est reliée par ses pieds à ciseaux (7) avant de façon articulée à la partie inférieure (2) et est fixée avec ses pieds à ciseaux (8) arrière sur la partie inférieure (2) de telle sorte que, lors du réglage de la hauteur de la partie supérieure (3), ils se déplacent sur la partie inférieure (2).
  7. Procédé pour régler en hauteur une partie supérieure (3) d'un dispositif de levage (1) au moyen d'une unité d'entraînement (12, 14, 15, 19), la partie supérieure (3) étant reliée par une tringle de levage (4) à une partie inférieure (2) et la tringle de levage (4) présentant au moins deux tringles partielles (5, 6) reliées l'une à l'autre par une articulation centrale (16) et conçues sous forme de constructions à ciseaux, caractérisé en ce que l'unité d'entraînement (12, 14, 15, 19) a prise sur l'articulation centrale (16) de telle sorte que celle-ci et donc la tringle de levage (4) peuvent être déplacées dans la direction verticale, la tringle de levage (4) s'appuyant avec des pieds à ciseaux (7, 8), espacés les uns des autres, de la tringle partielle (6) inférieure sur la partie inférieure (2).
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 EP1732840A1 (fr) 2006-12-20
EP1732840B1 true 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10813815B2 (en) 2014-05-13 2020-10-27 Siemens Healthcare Gmbh Tiltable patient-supporting apparatus and method of tilting a patient-supporting apparatus

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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
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WO2015031237A1 (fr) * 2013-08-30 2015-03-05 General Electric Company Système d'entraînement de table pour table de patient
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
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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
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
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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
EP3340919B1 (fr) 2015-08-27 2020-09-30 Focal Healthcare Inc. Assemblage avec une interface mobile et un moteur pas-à-pas
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
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USD1022380S1 (en) * 2021-05-06 2024-04-09 Chester Brown Industries Pty Ltd Impact bit lifter

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Publication number Priority date Publication date Assignee Title
US10813815B2 (en) 2014-05-13 2020-10-27 Siemens Healthcare Gmbh Tiltable patient-supporting apparatus and method of tilting a patient-supporting apparatus

Also Published As

Publication number Publication date
EP1732840A1 (fr) 2006-12-20
CN101014530A (zh) 2007-08-08
CN100564230C (zh) 2009-12-02
US20070221895A1 (en) 2007-09-27
DE502005011301D1 (de) 2011-06-09
DE102004016728A1 (de) 2005-10-13
WO2005097662A1 (fr) 2005-10-20

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