EP1732840A1 - Lifting device - Google Patents
Lifting deviceInfo
- 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
Links
- 238000000034 method Methods 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004016728A DE102004016728A1 (en) | 2004-04-05 | 2004-04-05 | hoist |
PCT/EP2005/051223 WO2005097662A1 (en) | 2004-04-05 | 2005-03-16 | Lifting device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1732840A1 true EP1732840A1 (en) | 2006-12-20 |
EP1732840B1 EP1732840B1 (en) | 2011-04-27 |
Family
ID=34963362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05729517A Active EP1732840B1 (en) | 2004-04-05 | 2005-03-16 | Lifting device |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070221895A1 (en) |
EP (1) | EP1732840B1 (en) |
CN (1) | CN100564230C (en) |
DE (2) | DE102004016728A1 (en) |
WO (1) | WO2005097662A1 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 (en) * | 2006-12-28 | 2008-02-27 | Curtiembres Fonseca S A | DEVICE FOR DEFAULT OF AGING MATERIALS BEFORE THE LIGHT EXHIBITION |
US20090230368A1 (en) * | 2008-03-14 | 2009-09-17 | Bae Systems Land & Armaments L.P. | Adaptable beam lifter element (able) system |
DE102009027972A1 (en) * | 2009-07-23 | 2011-02-03 | Waldner Labor- Und Schuleinrichtungen Gmbh | scissor lift |
CN101993016B (en) | 2009-08-12 | 2014-07-09 | 鸿富锦精密工业(深圳)有限公司 | Elevating mechanism |
TWI417236B (en) * | 2009-08-20 | 2013-12-01 | Hon Hai Prec Ind Co Ltd | Lifting mechanism |
CN102879692B (en) * | 2012-10-16 | 2014-11-05 | 山东电力集团公司电力科学研究院 | Method and device for detecting insulator through multi-rotor unmanned aerial vehicle |
CN103169580B (en) * | 2013-03-20 | 2016-03-16 | 三峡大学 | Lumbar vertebra cervical vertebra conditioning bed |
WO2015031237A1 (en) * | 2013-08-30 | 2015-03-05 | General Electric Company | Table driving system for patient table |
CN103787231A (en) * | 2014-02-27 | 2014-05-14 | 张家港市华机环保新能源科技有限公司 | Double shear type lifting platform |
DE102014209016A1 (en) | 2014-05-13 | 2015-11-19 | Siemens Aktiengesellschaft | A tiltable patient support apparatus and method for tilting a patient support apparatus |
DE102014210253B4 (en) | 2014-05-28 | 2016-02-11 | Aktiebolaget Skf | Transmission for a height-adjustable shelf and method for changing a height of a shelf |
DE102014210250B4 (en) | 2014-05-28 | 2021-04-01 | Ewellix AB | Adjusting device for a height-adjustable shelf and method for changing the height of a shelf |
CN104217780B (en) * | 2014-09-25 | 2017-01-18 | 深圳市沃尔核材股份有限公司 | Irradiation transmission device |
CN107406197B (en) | 2015-01-14 | 2019-12-10 | 福康精准医疗***公司 | Balancing device and/or method for supporting a load |
CN104739594A (en) * | 2015-03-27 | 2015-07-01 | 苏州市天烨医疗设备有限公司 | Medical lifting device |
JP2018527144A (en) | 2015-08-27 | 2018-09-20 | フォーカル ヘルスケア インコーポレイテッド | Movable connector between stepper and stabilizer |
CN107473143A (en) * | 2016-06-08 | 2017-12-15 | 长沙华恒机器人***有限公司 | A kind of heavy hydraulic walking lift cart |
CN106629485A (en) * | 2017-01-10 | 2017-05-10 | 成都聚立汇信科技有限公司 | Novel lifting platform for electric power |
CN107284303B (en) * | 2017-05-26 | 2023-04-18 | 安道拓(重庆)汽车部件有限公司 | Automobile seat headrest with front and back telescopic function |
CN107601347A (en) * | 2017-11-07 | 2018-01-19 | 中山市巨洋金属制品有限公司 | A kind of hoistable platform |
CN108309773A (en) * | 2018-02-11 | 2018-07-24 | 安徽鑫诺医疗设备有限公司 | A kind of automation mixibustion bed |
CN109061707A (en) * | 2018-07-23 | 2018-12-21 | 河南省核工业放射性核素检测中心 | Nuclear pollution region nuclear radiation monitoring system and method based on unmanned plane |
CN110464581A (en) * | 2019-08-26 | 2019-11-19 | 青岛大学附属医院 | A kind of Portable clinical department of anesthesia Supplementary Anesthesia device |
CN113307174A (en) * | 2020-02-27 | 2021-08-27 | 沈阳新松机器人自动化股份有限公司 | Lifting equipment of push rod structure |
CN112223768A (en) * | 2020-08-26 | 2021-01-15 | 深圳市航世科技有限公司 | Production process of scissor legs |
CA3193557A1 (en) * | 2020-10-01 | 2022-04-07 | Chairman, Defence Research & Development Organisation (DRDO) | An article handling system |
USD1022380S1 (en) * | 2021-05-06 | 2024-04-09 | Chester Brown Industries Pty Ltd | Impact bit lifter |
USD1022379S1 (en) * | 2021-05-06 | 2024-04-09 | Chester Brown Industries Pty Ltd | Rotary bit lifter |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2975868A (en) * | 1957-11-26 | 1961-03-21 | John C Long | Elevator |
US3378231A (en) * | 1966-10-05 | 1968-04-16 | Wallace A. Rapp | High capacity fluid pressure jack |
US4447041A (en) * | 1981-07-13 | 1984-05-08 | Osaka Taiyo Co., Ltd. | Device for lifting a table |
US4638610A (en) * | 1983-03-03 | 1987-01-27 | Elevator Gmbh | Theatrical stage |
FR2708638B1 (en) * | 1993-08-04 | 1995-10-13 | Campenon Bernard Sge | Metal beam element for producing a mixed elongated structure with a cross-section of the box type, method for implementing this element, and elongated structure produced by implementing this method. |
US5379855A (en) * | 1994-01-13 | 1995-01-10 | Juang; Jenn-Ming | Elevating mechanism |
NL1005797C2 (en) | 1997-04-11 | 1998-10-14 | Konings Beheer B V L | Device suitable for translation of an object in the translation direction as well as a patient table. |
FR2780638B1 (en) | 1998-07-01 | 2000-09-29 | Hill Rom Sas | CARE BED WITH TELESCOPIC COLUMN SET |
DE10012767B4 (en) * | 2000-03-16 | 2007-05-24 | Webasto Ag | Charging system for the loading space of a vehicle |
JP2002332197A (en) * | 2001-05-08 | 2002-11-22 | Aitec:Kk | Lift device |
DE20118952U1 (en) * | 2001-11-20 | 2002-02-14 | Koetter Helmut | Lifting column for hospital or nursing beds |
GB2386062B (en) * | 2002-03-07 | 2004-04-28 | Huntleigh Technology Plc | Adjustable bed |
DE20316058U1 (en) * | 2003-10-21 | 2004-04-08 | Langguth & Co. Gmbh | Lifting unit to be used for bed or table, comprising scissor-type mechanism positioned at two sides |
CN2782649Y (en) * | 2005-01-25 | 2006-05-24 | 中国国际海运集装箱(集团)股份有限公司 | Lifting/lowering mechanism for conveyer |
-
2004
- 2004-04-05 DE DE102004016728A patent/DE102004016728A1/en not_active Ceased
-
2005
- 2005-03-16 CN CNB2005800108994A patent/CN100564230C/en active Active
- 2005-03-16 EP EP05729517A patent/EP1732840B1/en active Active
- 2005-03-16 DE DE502005011301T patent/DE502005011301D1/en active Active
- 2005-03-16 WO PCT/EP2005/051223 patent/WO2005097662A1/en active Application Filing
- 2005-03-16 US US10/594,745 patent/US20070221895A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2005097662A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004016728A1 (en) | 2005-10-13 |
DE502005011301D1 (en) | 2011-06-09 |
US20070221895A1 (en) | 2007-09-27 |
WO2005097662A1 (en) | 2005-10-20 |
EP1732840B1 (en) | 2011-04-27 |
CN100564230C (en) | 2009-12-02 |
CN101014530A (en) | 2007-08-08 |
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