EP1757259A2 - Entraînement pivotant - Google Patents

Entraînement pivotant Download PDF

Info

Publication number
EP1757259A2
EP1757259A2 EP06017656A EP06017656A EP1757259A2 EP 1757259 A2 EP1757259 A2 EP 1757259A2 EP 06017656 A EP06017656 A EP 06017656A EP 06017656 A EP06017656 A EP 06017656A EP 1757259 A2 EP1757259 A2 EP 1757259A2
Authority
EP
European Patent Office
Prior art keywords
cover plate
drive
spindle
drive mechanism
underside
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
EP06017656A
Other languages
German (de)
English (en)
Other versions
EP1757259A3 (fr
EP1757259B1 (fr
Inventor
Michael Reich
Reinhard Ueberschär
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.)
Hanning Elektro Werke GmbH and Co KG
Original Assignee
Hanning Elektro Werke GmbH and Co KG
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 Hanning Elektro Werke GmbH and Co KG filed Critical Hanning Elektro Werke GmbH and Co KG
Publication of EP1757259A2 publication Critical patent/EP1757259A2/fr
Publication of EP1757259A3 publication Critical patent/EP1757259A3/fr
Application granted granted Critical
Publication of EP1757259B1 publication Critical patent/EP1757259B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/02—Chairs with means to adjust position of patient; Controls therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A61G13/04—Adjustable operating tables; Controls therefor tiltable around transverse or longitudinal axis

Definitions

  • the invention relates to a pivot drive for a structure arranged on a subframe, such as an operating table, a dentist's chair or the like, with a drive mechanism arranged in the subframe.
  • Operating tables which are to be used here only as an example of facilities with a rotary actuator according to the invention, are often on bases in the form of several telescopically movable columns that form an enclosed space in the drive means for a height adjustment of the column and also drive means for Pivoting movements of the structure, so the table surface of the operating table can be arranged.
  • An example of such a solution shows the DE-OS 2 260 140 .
  • a height adjustment of the entire column is possible and on the other hand, a pivoting of the operating table by the individual vertical spindles are extended to different heights.
  • the DE 43 41 779 C2 the the U.S. Patent 5,621,933 corresponds, shows and describes a lifting column for a liftable and lowerable support element, in particular for a storage area, a patient bed or for other applications.
  • the lifting column is composed of telescopically displaceable column elements. In the cavity formed thereby are vertically arranged lifting cylinder. By different extension of the lifting cylinder, the bearing surface can be tilted.
  • the JP-A-08173492 shows and describes a multipurpose operating table which is mounted on a telescopic column. This column allows for a height adjustment. Incidentally, a part of the table surface is pivotable upwards and downwards. This multi-purpose operating table should be suitable for orthopedic surgery on the one hand and for brain surgery on the other hand.
  • the invention has for its object to provide a rotary actuator of the above type, which allows independent of the height adjustment of the undercarriage, a stable and largely backlash-free pivoting of the structure with respect to the undercarriage.
  • the pivoting drive according to the invention is characterized in that the drive mechanism is mounted on the underside of a frame-fixed cover plate of the undercarriage and a by a passage of the cover plate off and retractable drive member comprises.
  • the pivoting of the structure does not take place via relatively long threaded spindles or cylinders from the lower region of the underframe, but rather from a fixed position directly below the cover plate.
  • the cover plate forms, for example, the upper end of a telescopically displaceable column section.
  • the structure can be pivotally mounted on the cover plate and connected to the other with the drive member through which the structure can be pivoted. This results in a very stable arrangement that is less subject to play.
  • the drive member is preferably a spindle, which is axially extendable and retractable by means of a rotatable, connected to a motor, pivotally mounted on the underside of the cover plate spindle nut.
  • the drive member may also be a chain which can be pulled or pushed out of a passage in the cover plate.
  • the chain may be connected to a pulling spindle or a rack, which can be moved by a drive arranged below the cover plate.
  • the chain can also be guided over a sprocket.
  • Fig. 1 shows a base in the form of a telescopic column with three telescopically movable column sections 10,12,14.
  • the inner column section 10 is mounted on a base plate 16.
  • the outer pillar portion 14 is closed at its upper end by a cover plate 18.
  • cover plate 18 On closer details of the telescopic column will not be discussed here, since such columns are known per se.
  • the lifting cylinder 20 serves to lift the cover plate 18 together with the outer pillar portion 14 and, following this, the central pillar portion 12. In this way, with the aid of the cover plate 18, not shown, mounted on the cover plate structure, such as a lying surface raised and be lowered.
  • lifting cylinder 20 may be provided a spindle or a rack drive.
  • a spindle 22 For pivoting the structure, not shown, such as a lying surface, a spindle 22 is provided.
  • the spindle 22 passes through a spindle gear 24 with a spindle nut, not shown in detail, which receives the spindle.
  • the spindle gear 24 is pivotally mounted in an axis 26 on the underside of the cover plate 18. With the spindle gear 24, an electric motor 28 is connected, which is pivoted together with the spindle gear 24 with respect to the axis 26.
  • Fig. 1 shows that the spindle can be moved both along its own longitudinal axis by the spindle nut is rotated in a suitable manner, as well as about the axis 26 which is perpendicular to the plane in Fig. 1, together with the spindle gear and the Electric motor 28 can be pivoted.
  • an eye 32 which can receive, for example, a screw for connection to a patient bed, not shown, or the like.
  • This patient bed can for example be fixed by means of a pivot axis on the cover plate 18 and connected in another position with the eye 32 of the spindle. In this way, the patient bed can be pivoted in the desired manner.
  • the arrangement of spindle gear 24 and electric motor 28 is mounted directly on the underside of the cover plate 18. It is therefore not necessary to lead several spindles or lifting cylinder of the bottom plate 16 up to the patient bed upwards in order to achieve in this way the pivoting.
  • the connection from the pivot drive, i. the spindle gear on a direct route to the couch to be pivoted, is relatively short. This connection is less susceptible to play and very stable.
  • the entire swing mechanism is housed inside the undercarriage. The outside of the base is completely smooth and can therefore be easily kept clean. This is particularly important in the medical field of high importance, since there are particularly high demands on hygiene.
  • Fig. 2 shows another embodiment of the invention
  • the subframe is also designed as a telescopic column with three column sections 10,12,14.
  • the base plate 16 and the cover plate 18 are provided as in the first embodiment.
  • An adjusting motor / drive 20 according to the variable motor / drive shown in the first embodiment connects the base plate 16 with the cover plate 18, as described above.
  • a vertically downwardly directed tube 34 is fastened by means of screws 36.
  • an electric motor 38 is mounted, which is connected to a gear, not shown in detail, comprising a rotatable, fixed in the axial direction of the spindle nut.
  • a spindle 40 is screwed, which can be moved by rotation of the spindle nut in the tube 34 upwards and downwards.
  • Fig. 2 shows that the spindle accommodates a serving as rotation lock nut 42 in its end, which is longitudinally displaceable, but not rotatably guided together with the spindle in the tube 34.
  • a chain 44 is fixed in a manner not shown, which extends upward through a passage 46 in the cover plate 18 and above the cover plate 14 is guided over a guide wheel 48 and can be deflected in a horizontal plane.
  • the chain is attached with its outer end to a frame part 50, which belongs for example to a patient bed, a dentist's chair or other device of the type of interest here.
  • the frame part 50 is mounted by means of a pivot axis 52 at the top of the cover plate 18.
  • the design of the undercarriage as a lifting column with a number of nested column sections 10,12,14 appears to be particularly advantageous because in this way an interior is formed in which the pivot drive can be accommodated to save space and in which the pivot drive is covered to the outside.
  • the lifting column has a relatively smooth outer surface, so that no dirt corners can form.
  • a lifting column forms a stable guide, which can absorb high tilting and torsional forces.
  • the function of the rotary actuator is independent of the position of the lifting column.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP20060017656 2005-08-26 2006-08-24 Entraînement pivotant Expired - Fee Related EP1757259B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510040402 DE102005040402B3 (de) 2005-08-26 2005-08-26 Schwenkantrieb für einen auf einem Untergstell angeordneten Aufbau, vorzugsweise für einen Operationstisch oder einen Zahnarztstuhl

Publications (3)

Publication Number Publication Date
EP1757259A2 true EP1757259A2 (fr) 2007-02-28
EP1757259A3 EP1757259A3 (fr) 2007-11-21
EP1757259B1 EP1757259B1 (fr) 2009-05-06

Family

ID=37603120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060017656 Expired - Fee Related EP1757259B1 (fr) 2005-08-26 2006-08-24 Entraînement pivotant

Country Status (3)

Country Link
EP (1) EP1757259B1 (fr)
DE (2) DE102005040402B3 (fr)
DK (1) DK1757259T3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260140A1 (de) 1972-12-08 1974-06-12 Stille Werner Ab Operationstisch
DE4341779C2 (de) 1993-12-08 1995-12-07 Knapp Juergen Michael Hubsäule für ein heb- und senkbares Tragelement, insbesondere für eine Lagerfläche einer Patientenliege oder für industrielle Anwendungen sowie eine Patientenliege mit einer solchen Hubsäule
JPH08173492A (ja) 1994-12-21 1996-07-09 Takeuchi Seisakusho:Kk 多目的手術台
DE19853271A1 (de) 1998-11-18 2000-05-25 Maquet Ag Untersuchungsstuhl

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR974225A (fr) * 1941-06-05 1951-02-20 Perfectionnements apportés aux articles tels, notamment, que tables chirurgicales, tables à dessiner, etc.
DE19544545C1 (de) * 1995-11-29 1997-01-16 Siemens Ag Vorrichtung zur zwangsgekoppelten Verstellung von Sitz und Rückenlehne eines zahnärztlichen Patientenstuhls
US5826286A (en) * 1996-10-09 1998-10-27 Vssi, Inc. Veterinary surgical table
US6209463B1 (en) * 1999-03-12 2001-04-03 United Metal Fabricators, Inc. Medical examination table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260140A1 (de) 1972-12-08 1974-06-12 Stille Werner Ab Operationstisch
DE4341779C2 (de) 1993-12-08 1995-12-07 Knapp Juergen Michael Hubsäule für ein heb- und senkbares Tragelement, insbesondere für eine Lagerfläche einer Patientenliege oder für industrielle Anwendungen sowie eine Patientenliege mit einer solchen Hubsäule
US5621933A (en) 1993-12-08 1997-04-22 Knapp; Juergen Lift column for a surgical support
JPH08173492A (ja) 1994-12-21 1996-07-09 Takeuchi Seisakusho:Kk 多目的手術台
DE19853271A1 (de) 1998-11-18 2000-05-25 Maquet Ag Untersuchungsstuhl

Also Published As

Publication number Publication date
EP1757259A3 (fr) 2007-11-21
EP1757259B1 (fr) 2009-05-06
DK1757259T3 (da) 2009-07-27
DE502006003654D1 (de) 2009-06-18
DE102005040402B3 (de) 2007-05-03

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