EP0100490A2 - Dispositif d'élévation notamment pour fauteuil dentaire - Google Patents

Dispositif d'élévation notamment pour fauteuil dentaire Download PDF

Info

Publication number
EP0100490A2
EP0100490A2 EP83107114A EP83107114A EP0100490A2 EP 0100490 A2 EP0100490 A2 EP 0100490A2 EP 83107114 A EP83107114 A EP 83107114A EP 83107114 A EP83107114 A EP 83107114A EP 0100490 A2 EP0100490 A2 EP 0100490A2
Authority
EP
European Patent Office
Prior art keywords
lifting device
scissor arm
support
scissor
height
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
EP83107114A
Other languages
German (de)
English (en)
Other versions
EP0100490B1 (fr
EP0100490A3 (en
Inventor
Klaus Stöckl
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 EP0100490A2 publication Critical patent/EP0100490A2/fr
Publication of EP0100490A3 publication Critical patent/EP0100490A3/de
Application granted granted Critical
Publication of EP0100490B1 publication Critical patent/EP0100490B1/fr
Expired legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle

Definitions

  • the invention relates to a lifting device for a dental patient chair in particular, with scissor-like support arms arranged between a base part and a height-adjustable support part and connected to one another by an axis, which are arranged in pairs parallel to one another at a distance and one end of which is attached to a stationary part , The other ends are articulated on the movable part of a horizontal guide, on the one hand the base part and on the other hand the height-adjustable support part.
  • Such a lifting device is known for example from US Pat. No. 3,522,925.
  • the lifting device is designed there as a double scissor arm construction with double scissor arms arranged on both sides of the chair, each connected by joints.
  • Such a lifting device is structurally complex and has a relatively large number of bearing points, which, in order to obtain sufficient stability, have to be very precise and therefore complex in terms of production technology.
  • Another disadvantage is that the scissor arms cannot be folded extremely deep.
  • the aim of the present invention is to provide a lifting device which is simpler in comparison, but still sufficiently stable, with a sufficiently high usable lifting path and an extremely low lowest position, whereby the construction should aim to reduce the width of the support arm construction without impairing the stability.
  • one of the support arms arranged in pairs is shortened to the axle bearing and both support arms are connected to each other by a transverse reinforcement and so form a torsionally rigid unit that the two support arm assemblies are arranged reversely facing each other, and that the free end of the long support arm of each assembly is hinged to the horizontal guide, which is arranged for one assembly on the stationary base part and for the other on the height-adjustable support part.
  • the lifting device according to the invention is a very compact, very small construction, which is sufficiently stable and can be used particularly advantageously as a height adjustment device in a dental patient chair.
  • Advantageous refinements and developments are contained in the subclaims.
  • FIG. 1 shows a diagrammatic representation of a dental work station, consisting of a patient chair 1, a doctor's device 2 arranged to the right of the patient as viewed from the patient and a helper device 3 arranged to the left of the patient chair .
  • the lower part of the chair contains a base part 4, in which a horizontal guide 5 for the doctor's device 2, which will be explained in more detail later, and electrical and / or pneumatic supply modules combined in a junction box 6 are arranged, as well as a height adjustment device for the seat and Backrest existing chair upper part 8.
  • the device 3 is also by means of. a horizontal guide 9 (Fig.
  • the horizontal guide 9 for the assistant's device 3 on the height-adjustable chair top support 10 only extends over its length.
  • FIG. 3 shows the structure of the lower chair part including upper chair part support 10 in an exploded view. The view is from the side from which FIG. 2 is to be viewed.
  • the base part 4 is essentially formed from a base plate 11 which is rectangular in plan and which has all the supporting parts, in particular the height adjustment device designated by 60 and the support 10 for the chair upper part 8, and a frame surrounding the base plate 11, which in turn is formed from two end pieces 12 arranged on the shorter sides and from cladding parts 13 and profile elements 14 arranged on the longer sides.
  • the end pieces 12 are designed as corner profiles, ie they have end parts 12a which are angled at right angles and encompass the shorter sides of the base plate 11 and into which elastic connecting elements 15 are inserted, to which the trim parts 13 or the profile elements 14 can be fastened.
  • the right end piece 12 shown in the figure contains a shoulder 16, on which the lower end of the bellows 7 is hung.
  • the end pieces 12 are screwed to the base plate 11, for which purpose fastening tabs 17 and 12 end pieces 18 1 are arranged on the end pieces.
  • the full-surface covering parts 13 are cross-divided into a section 13a, which essentially corresponds to the length of the chair upper part carrier 10 or the bellows 7 surrounding the height adjustment device, and a section 13b, which corresponds to the remaining length, essentially the length of the connection box 6.
  • a holding part 20 is arranged on the base plate 11 or on a strip 19 connected to it, adapted to the profile of the covering parts 13, onto which the covering parts 13a, 13b are pushed with their one ends for fixing before they are attached to theirs other ends are connected to the end pieces 12 by means of the elastic connecting elements 15.
  • the trim part 13a like the right end piece 12, also contains one Approach 16, on which the bellows 7 is hung.
  • the cross division is also present in the angle profiles 14; here, too, the individual parts are connected to one another by elastic connecting elements 15; the upper angle section 14a, like the covering part 13a, contains a corresponding extension 16 in order to be able to fasten the bellows 7.
  • a major advantage of the transverse division of the trim parts and angle profiles in the manner described can be seen in the fact that the same trim parts can be used for the trim of both the seat support and the base part, namely for a chair construction with a short base part, e.g. without connection box, as well as with a long base part, e.g. with junction box.
  • the two angle profiles 14 form a slot 21, from which a connecting or supporting part 22 projects, on which the support column 23 (FIG. 1), which is bent off at the bottom, can be fastened for the device 2.
  • the support part 22 is fixedly connected to a slide 24 which is guided within the base part 4 over the entire length of the slot 21 in the horizontal guide 5.
  • the slot 21 is covered in each position of the slide 24 by a belt 25 suspended on the slide 24, which is guided as an endless belt over deflection rollers 26 approximately rectangular.
  • various supply lines 27 which are joined to form a flat band and which bring the media (air and / or water and / or electrical current) required in the device 2 from a central supply source in the connection box 6 to the support part 22.
  • the chair upper part support 10 also consists of a base plate 31 which is rectangular in plan and has the same width as the base plate 11 and a frame consisting, on the one hand, of end pieces 32 on both sides and, on the other hand, trim parts 33 and angle profiles 34, which in turn are attached by means of corresponding elastic connecting elements 35 are attached to the end pieces.
  • a base plate 31 which is rectangular in plan and has the same width as the base plate 11
  • a frame consisting, on the one hand, of end pieces 32 on both sides and, on the other hand, trim parts 33 and angle profiles 34, which in turn are attached by means of corresponding elastic connecting elements 35 are attached to the end pieces.
  • trim parts 33 and angle profiles 34 which in turn are attached by means of corresponding elastic connecting elements 35 are attached to the end pieces.
  • approaches 36 On the end pieces and on the angle profiles are approaches 36, on which the bellows 7 can be hung.
  • the end pieces 32 are identical to the end pieces 12, that is to say they have fastening tabs 38 in the same place and at the same height; the associated brackets 37 are provided in the base plate 31.
  • the trim parts 33 also have the same dimensions as the trim sections 13a, which among other things simplifies the storage of the parts and also makes it possible to exchange the parts with one another.
  • the right end piece 12 provided with a shoulder can be used from the base part 4 to cover the upper part carrier.
  • connection or support part 42 to which the support column 43 (FIG. 2) of the device 3 is attached either directly or via a support arm.
  • the slot is covered by a webbing 45.
  • Base parts 61 are formed on the base plate 11 of the base part 4, on which a box-shaped frame 62 which is open at the top and bottom is fastened.
  • a scissor arm construction formed from two parts 63, 64 is articulated on the one hand on the frame 62 and on the other hand on the chair upper part support 10.
  • the scissor arm parts 63, 64 have the same structure except for the pivot point of a drive which will be explained in more detail later, i.e. they each form a long support arm 63a, a shorter support arm 63b and a transverse stiffener 63c in between.
  • the shorter support arm 63b, 64b has approximately half the length of the longer support arm 63a, 64a and is guided in a common axle bearing 65.
  • the ends 66 of the parallel support arms 63a, 63b, which end at the same height, are mounted on the upper chair support 10; the free end 67 of the longer support arm 63a is articulated to a bush 68 which, together with a guide rod 69 attached to the frame 62, forms a horizontal guide.
  • the two scissor arm parts 63 and 64 are arranged relative to one another in such a way that the legs of the U-shaped support arms face one another.
  • the two scissor arm parts can thus be arranged horizontally in the lowest position (FIG. 6).
  • the intermeshing of the scissor arm parts would make an even lower end position possible if this were necessary due to certain design requirements.
  • the design of the lifting device in the manner described makes it possible to make the entire lifting device extremely narrow, as a result of which more space is created to the side of the scissor arm parts compared to other designs.
  • Another advantage is that below the scissor arms lying horizontally in the lowest position sufficient storage space is formed for the accommodation of the supply lines.
  • Base part 4 and upper chair part 10 form on each side of the height adjustment device 60 a space 78 and 79, respectively, serving as a cable duct for the cables 27 and 28.
  • This space extends parallel to the longitudinal axis of the chair and is on the one hand through the base and frame parts 61, 62 and on the other hand limited by the bellows 7.
  • the supply lines 27, 28 are combined in the manner of a ribbon cable and laid in the cable ducts 78, 79 to form a loop 50 so that they can follow the movement of the devices.
  • One end of the lines ends in the carriage 24 or 44, thus moving along the guideway, the other end opens in the junction box 6.
  • the length of the lines there is dimensioned such that they are still adequately guided in the respective end positions within the cable duct.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Chairs Characterized By Structure (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
EP83107114A 1982-08-02 1983-07-20 Dispositif d'élévation notamment pour fauteuil dentaire Expired EP0100490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823228834 DE3228834A1 (de) 1982-08-02 1982-08-02 Hubvorrichtung fuer insbesondere einen zahnaerztlichen patientenstuhl
DE3228834 1982-08-02

Publications (3)

Publication Number Publication Date
EP0100490A2 true EP0100490A2 (fr) 1984-02-15
EP0100490A3 EP0100490A3 (en) 1984-12-27
EP0100490B1 EP0100490B1 (fr) 1986-10-29

Family

ID=6169937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107114A Expired EP0100490B1 (fr) 1982-08-02 1983-07-20 Dispositif d'élévation notamment pour fauteuil dentaire

Country Status (4)

Country Link
US (1) US4533106A (fr)
EP (1) EP0100490B1 (fr)
JP (1) JPS5948395A (fr)
DE (2) DE3228834A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373245A1 (fr) * 1988-12-14 1990-06-20 Siemens Aktiengesellschaft Fauteuil de dentiste

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611436A1 (de) * 1986-04-05 1987-10-08 Medical Res & Dev Ag Liege fuer patienten
NO171945C (no) * 1988-01-11 1993-05-26 Zenit Holding As Elektrisk drevet og trinnloes hoeyderegulerbar rullestol
US5466046A (en) * 1988-05-20 1995-11-14 La-Z-Boy Chair Co. Linear actuation drive mechanism for power-assisted chairs
US5651580A (en) * 1988-05-20 1997-07-29 La-Z-Boy Chair Company Linear actuation drive mechanism for power-assisted chairs and base therefor
CA1299989C (fr) * 1988-05-20 1992-05-05 Larry P. Lapointe Fauteuil a bascule a positionneur motorise
US5482350A (en) * 1988-05-20 1996-01-09 La-Z-Boy Chair Company Linear actuation drive mechanism for power-assisted chairs
US5061010A (en) * 1988-05-20 1991-10-29 La-Z-Boy Chair Co. Cam guide drive mechanism for power-assisted chairs and the like
DE8903118U1 (de) * 1989-02-16 1989-06-22 J.D. Moeller Optische Werke Gmbh, 2000 Wedel Operateurstuhl
DE9202049U1 (de) * 1992-02-18 1992-05-21 M&K Therapie-Geräte-Vertrieb GmbH & Co. KG, 35460 Staufenberg Hub- und Kippscherensystem
US5586740A (en) * 1994-12-19 1996-12-24 General Motors Corporation Chuckless power seat adjuster slide
US5735500A (en) * 1995-10-26 1998-04-07 General Motors Corporation Chuckless power seat adjuster slide
US5967471A (en) * 1997-12-17 1999-10-19 Lear Corporation Vehicle parallel seat lift with stable linkage
US8733508B2 (en) 2010-04-02 2014-05-27 Herkules Equipment Corporation Scissor lift assembly
US8622362B2 (en) 2010-05-25 2014-01-07 Deere & Company Suspension system
US20120181826A1 (en) * 2011-01-13 2012-07-19 Toyota Motor Engineering & Manufacturing North America, Inc. Occupant Classification System Sensor Covers and Seat Assemblies With Protected Occupant Classification System Sensors
PL235416B1 (pl) 2014-10-21 2020-07-27 Reac Poland Spolka Z Ograniczona Odpowiedzialnoscia Podnośnik, zwłaszcza do zmiany położenia siedziska w wózku inwalidzkim
US11932148B2 (en) * 2020-11-23 2024-03-19 Seats Incorporated Bellows for seat assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522925A (en) * 1968-04-08 1970-08-04 Weber Dental Mfg Co Dental chair jack construction
US3804460A (en) * 1972-05-30 1974-04-16 Pelton & Crane Co Power operated treatment chair
DE2837471A1 (de) * 1977-09-12 1979-03-15 Morita Mfg Verstellmechanismus fuer einen behandlungstisch oder -stuhl sowie mit einem solchen verstellmechanismus ausgeruesteter behandlungstisch oder -stuhl
GB2024616A (en) * 1978-06-26 1980-01-16 Machlett Lab Inc X-ray apparatus with adjustable table

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086742A (en) * 1960-12-20 1963-04-23 Clark Equipment Co Seat suspension
US3182947A (en) * 1963-01-29 1965-05-11 Gen Motors Corp Seat adjuster
EP0010387B1 (fr) * 1978-10-19 1983-02-16 Uop Inc. Améliorations des suspensions élastiques pour sièges de véhicule

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522925A (en) * 1968-04-08 1970-08-04 Weber Dental Mfg Co Dental chair jack construction
US3804460A (en) * 1972-05-30 1974-04-16 Pelton & Crane Co Power operated treatment chair
DE2837471A1 (de) * 1977-09-12 1979-03-15 Morita Mfg Verstellmechanismus fuer einen behandlungstisch oder -stuhl sowie mit einem solchen verstellmechanismus ausgeruesteter behandlungstisch oder -stuhl
GB2024616A (en) * 1978-06-26 1980-01-16 Machlett Lab Inc X-ray apparatus with adjustable table

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373245A1 (fr) * 1988-12-14 1990-06-20 Siemens Aktiengesellschaft Fauteuil de dentiste
US5015035A (en) * 1988-12-14 1991-05-14 Siemens Aktiengesellschaft Dental patient chair

Also Published As

Publication number Publication date
JPS5948395A (ja) 1984-03-19
DE3367161D1 (en) 1986-12-04
EP0100490B1 (fr) 1986-10-29
EP0100490A3 (en) 1984-12-27
JPH0567559B2 (fr) 1993-09-27
US4533106A (en) 1985-08-06
DE3228834A1 (de) 1984-02-02

Similar Documents

Publication Publication Date Title
EP0100490B1 (fr) Dispositif d'élévation notamment pour fauteuil dentaire
EP0100492B1 (fr) Fauteuil dentaire
DE4113770C2 (de) Tisch zur Verwendung beim Verstellen eines Werkstücks in eine vorbestimmte Position
DE3727193A1 (de) Arbeitstisch
DE4021248A1 (de) Bausatz zur herstellung von buero-arbeitstischen
DE2826155C3 (de) Verwindungsweicher Drehgestellrahmen für Schienenfahrzeuge
EP0100491B1 (fr) Fauteuil dentaire
DE4217698A1 (de) Entlang einer Förderbahn bewegbarer Tisch
DE3505010C2 (de) Sicherheitssitz für Kinder in Kraftfahrzeugen
DE8612867U1 (de) Röntgenuntersuchungsgerät mit einer ein Röntgensystem tragenden Säule
DE3425682C2 (de) Regalbediengerät
EP0681891A1 (fr) Table de travail et de montage
DE3727759A1 (de) Vorrichtung zum heben und senken und/oder neigen von gegenstaenden, insbesondere einer tischplatte, einem zeichenbrett oder dergleichen
DE3308345C2 (fr)
DE2606806C2 (de) Mobile Richtvorrichtung, insbesondere für Kraftfahrzeug-Karosserien
DE2448689C3 (de) Scharnierarm aus Metallblech
DE3541256A1 (de) Pantograph
DE69321388T2 (de) Primärfederung für Schienenfahrzeuge
DE9414692U1 (de) Fahrgestell für ein medizinisches Gerät
DE4001256C2 (fr)
AT408424B (de) Vorrichtung zur positionierung und zum zusammenbau von karosserieteilen eines kraftfahrzeuges
DE1245763B (de) Rahmenendteil fuer Tragwerke von Kraftfahrzeugen
DE2251809A1 (de) Zahnaerztlicher patientenstuhl mit parallelogrammtragarm
EP0132448B1 (fr) Table à plateau réglable
EP0100489B1 (fr) Appareil dentaire

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19841217

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 3367161

Country of ref document: DE

Date of ref document: 19861204

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910625

Year of fee payment: 9

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920720

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920720

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020719

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020806

Year of fee payment: 20