EP0088956B1 - Fauteuil de dentiste - Google Patents

Fauteuil de dentiste Download PDF

Info

Publication number
EP0088956B1
EP0088956B1 EP83102086A EP83102086A EP0088956B1 EP 0088956 B1 EP0088956 B1 EP 0088956B1 EP 83102086 A EP83102086 A EP 83102086A EP 83102086 A EP83102086 A EP 83102086A EP 0088956 B1 EP0088956 B1 EP 0088956B1
Authority
EP
European Patent Office
Prior art keywords
chair
seat
roller
articulated
seat frame
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.)
Expired
Application number
EP83102086A
Other languages
German (de)
English (en)
Other versions
EP0088956A2 (fr
EP0088956A3 (en
Inventor
Klaus Stöckl
Reinhard Engert
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 EP0088956A2 publication Critical patent/EP0088956A2/fr
Publication of EP0088956A3 publication Critical patent/EP0088956A3/de
Application granted granted Critical
Publication of EP0088956B1 publication Critical patent/EP0088956B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a dental patient chair with a chair lower part and a chair and a pivotable articulated backrest containing the upper part of the chair, arranged between the lower and upper part of the chair, designed as a straight guide, by means of which a seat frame supporting the upper part of the chair can be moved along the lower part of the chair , Means are provided which, when the backrest is inclined, on the one hand shift the seat in the longitudinal direction of the chair relative to the lower part of the chair and, on the other hand, tilt about a transverse axis with the aid of a run-off roller supported on a running track.
  • the upper part of the chair is positively guided in the sense of the described combined movement by means of a rigid handlebar designed as an armrest, which is articulated on the one hand to the backrest and on the other hand to the lower part of the chair.
  • the object of the present invention is; to improve a dental patient chair of the type mentioned at the outset in such a way that the above-described combined movement can be achieved without lateral armrests or similar steering linkages attached to the outside of the chair and interfering with free access to the chair, but nevertheless adequate stability without arrangement a particularly torsion-resistant support frame is given.
  • the pivot bearing for the backrest is arranged in a stationary manner on the seat frame, approximately in the region of the hip joint of a person sitting in the chair, that the bearing part on which the backrest is arranged is connected to the backrest in an angularly rigid manner , downward opening into the seat frame, on which a pull / push rod is articulated, and that a two lever arms roller lever is articulated on the seat frame, on one arm the pull / push rod is articulated and on the other arm the roller is mounted, which is supported on the arranged on the lower part of the chair and determining the tilting movement of the seat.
  • the construction according to the invention has the advantage that, after the swivel bearing for the backrest lies approximately in the area of the hip joint of a person sitting in the chair, there is practically no “pull-out effect”, that the backrest is practically self-supporting, therefore does not require a torsionally rigid support frame, and that both sides of the chair are free of a steering or armrest linkage.
  • Another advantage of the construction according to the invention can be seen in the fact that the backrest has no mechanical coupling in the direction of the steep position, that is to say that it can be raised freely in each inclination phase and thus complies with the required safety regulations.
  • the proposed construction for guiding the upper part of the chair also has the advantage that no counterweights are to be provided in the area of the leg rest, as is the case with known chairs for safety reasons, in order to avoid possible tilting movements in extreme chair positions.
  • Fig. 1 shows a dental patient chair in a side view with a base part 1, a height adjustment device 2, not shown, and a support frame 3 existing chair lower part and a chair part formed from the seat 4 and backrest 5.
  • Seat 4 and backrest 5 are connected to one another by means of a joint 6.
  • the joint 6 is present on both sides of the chair (FIG. 2) and is located approximately in the area of the hip joint of a person sitting in the chair.
  • the two joints 6 each consist of a pin 8 arranged on the seat frame 7 and a bearing part 9 pivotable about this pivotable bearing part 9, on the one hand, a fastening part 10 for the backrest 5 and, on the other hand, an extension 11 which plunges downward into the seat frame 7 are fastened at an angle-resistant manner.
  • a pull / push rod 13 is articulated by means of a joint 12, at the free end of which a lever arm 15 of a roller lever 16 is articulated by means of a joint 14.
  • the roller lever 16 is fixed in place on the seat frame 7 by means of a joint 17; On the second lever arm 18, a roller 19 is mounted, which is supported on a track 20 fastened to the support frame 3 of the lower part of the chair.
  • the two joints 14, 17 and the roller 19 form an isosceles triangle.
  • the dimensioning of the lever arms as well as the arrangement of the bearing point and the inclination of the concavely curved plane of the raceway 20 are such that when the backrest 5 is inclined, the seat 4 is moved in the desired manner in the direction of the arrow indicated in the image to the right and at the same time the legrest is slightly raised towards the backrest. The guidance necessary for this is explained in more detail with reference to FIG. 4.
  • Guide rods 21, 22 are arranged on the seat frame 7 on both sides.
  • the mounting blocks required for this are designated by 23.
  • the guide rods 21, 22 are arranged in pairs (21, 21 a; 22, 22a) and one behind the other.
  • Guide bushings 24, 24a run on the guide rods; 25, 25a, these guide bushes 24, 25 are each articulated by means of a joint 26 (FIG. 3) in brackets 27 on the support frame 3, that is to say on the lower part of the chair.
  • a spindle drive 30 is provided in a manner known per se with a spindle nut 31 and a threaded spindle 32.
  • the spindle drive 30 is suspended from the seat frame 7 by means of trunnions 33 and brackets 34.
  • the spindle nut 31 is also articulated by means of a joint 35 and brackets 36 on the support frame 3, that is to say on the lower part of the chair.
  • the threaded spindle 32 is moved along the spindle nut 31 when the drive 30 is switched on; due to the coupling of the drive to the seat frame 7, the seat 4 is adjusted in the longitudinal direction of the chair.
  • the guide bushes 24, 25 are adjusted along the guide rods 21, 22.
  • the roller 19 runs on the inclined plane of the track 20.
  • the roller is pressed onto the track 20 by the weight of the backrest.
  • the roller lever 16 tilts about the articulation axis 17, with the result that the pull arm 15 / Push rod 13 is moved to the right in the display plane.
  • the seat and leg support are slightly raised when pushed forward.
  • the angle of inclination of the guide rods 21, 22 determines the degree of lifting of the seat and leg support.
  • the arrangement of the guide rods 21, 22 is advantageously in pairs; An embodiment with only a paired arrangement of the rods 21, 21 and only one guide rod in the front area is also conceivable.

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)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Claims (7)

1. Fauteuil de patient pour dentisterie possédant une partie inférieure comportant un châssis de support (3) et une partie supérieure comportant un siège (4) et un dossier (5) articulé de façon à pouvoir pivoter sur le siège, et comportant un dispositif de décalage (21-25) disposé entre le chassis de support (3) et la partie supérieure du fauteuil et réalisé sous la forme d'un système de guidage rectiligne, et à l'aide duquel un cadre (7) du siège, qui porte la partie supérieure du fauteuil, est déplaçable le long de la partie inférieure dudit fauteuil, tandis qu'il est prévu des moyens qui, lors de l'inclinaison du dossier, d'une part déplacent le siège suivant la direction longitudinale du fauteuil par rapport à la partie inférieure de ce dernier et d'autre part font basculer le siège autour d'un axe transversale, à l'aide d'un galet (19) prenant appui sur une piste de roulement (20), caractérisé par le fait que le palier pivotant (6) est monté fixe sur le cadre (7) du siège, approximativement au niveau de l'articulation de la hanche d'une personne assise sur le fauteuil, et que la partie (9) du palier (6), sur laquelle le dossier (5) est disposé, comporte un appendice saillant (11) relié au dossier (5) en faisant avec lui un angle fixe et pénétrant vers le bas dans le cadre (7) du siège et sur lequel une barre de traction/pression (13) est articulée, et que sur le cadre (7) du siège se trouve articulé un levier à galet (16) comportant deux bras de levier (15, 18) et sur un bras de levier (15) duquel la barre de traction/pression (13) est articulée et sur l'autre bras (18) duquel se trouve monté le galet (19) qui s'appuie sur la piste de roulement (20) située sur le châssis de support (3) de la partie inférieure du fauteuil et déterminant le mouvement de basculement du siège.
2. Fauteuil pour patient suivant la revendication 1, caractérisé par le fait que l'appendice saillant (11 ), la barre de traction/pression (13) et le levier à galet (16) sont disposés des deux côtés du dossier (5).
3. Fauteuil pour patient suivant le revendication 1 ou 2, caractérisé par le fait que le levier à galet (16) forme, avec les deux articulations (14,17) et le palier du galet (19), un triangle de préférence équilatéral.
4. Fauteuil pour patient suivant la revendication 3, caractérisé par le fait que le levier à galet (16) comporte des bras de levier en forme de V (15, 18), qui sont articulés au niveau de leur point d'intersection, au moyen de paliers (17), sur le châssis (3) de support du siège.
5. Fauteuil pour patient suivant l'une des revendications 1-4, caractérisé par le fait que le système de guidage rectiligne est formé par deux barres de guidage longitudinales (21, 22), disposées l'une derrière l'autre en étant inclinées d'un angle obtus l'une par rapport à l'autre et maintenue sur le cadre (7) du siège et par des manchons coulissants (24, 25) associés à ces barres et montés de façon articulée sur le châssis de support (3) de la partie inférieure du fauteuil.
6. Fauteuil pour patient suivant la revendication 5, caractérisé par le fait que les deux barres de guidage (21, 22) situées l'une derrière l'autre sont disposées en étant respectivement inclinées d'un angle de 10° par rapport à l'horizontale.
7. Fauteuil pour patient suivant l'une des revendications 5 ou 6, caractérisé par le fait que les barres de guidage (21, 22) sont montées par couples.
EP83102086A 1982-03-17 1983-03-03 Fauteuil de dentiste Expired EP0088956B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823209773 DE3209773A1 (de) 1982-03-17 1982-03-17 Zahnaerztlicher patientenstuhl
DE3209773 1982-03-17

Publications (3)

Publication Number Publication Date
EP0088956A2 EP0088956A2 (fr) 1983-09-21
EP0088956A3 EP0088956A3 (en) 1984-05-02
EP0088956B1 true EP0088956B1 (fr) 1986-06-25

Family

ID=6158532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102086A Expired EP0088956B1 (fr) 1982-03-17 1983-03-03 Fauteuil de dentiste

Country Status (4)

Country Link
US (1) US4505514A (fr)
EP (1) EP0088956B1 (fr)
JP (1) JPS58169449A (fr)
DE (2) DE3209773A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541671A (en) * 1982-11-05 1985-09-17 Syntex (U.S.A.) Inc. Patient support
US4563784A (en) * 1984-08-17 1986-01-14 Fred Shrock Power actuated seat-bed assembly
IT206947Z2 (it) * 1986-06-12 1987-10-26 Pro Cord Srl Sedia con schienale articolato
JP2926980B2 (ja) * 1990-11-30 1999-07-28 アイシン精機株式会社 車両用シート
US5624159A (en) * 1993-05-11 1997-04-29 Vess Chairs, Inc. Adaptive seating device for diagnostic testing
CA2122294A1 (fr) * 1994-04-27 1995-10-28 Peter C. Boetzkes Fauteuil de dentiste
FR2766430B1 (fr) * 1997-07-24 1999-10-08 Faure Bertrand Equipements Sa Siege ergonomique pour vehicule
US6106065A (en) * 1997-10-24 2000-08-22 Reliance Medical Products, Inc. Examination chair with lifting and tilting mechanism
US6030043A (en) * 1997-12-18 2000-02-29 Bertrand Faure Sitztechnik Gmbh & Co. Kg Motor vehicle seat, in particular back seat
USD418339S (en) * 1998-10-22 2000-01-04 Reliance Medical Products, Inc. Chair back cushion
USD418686S (en) * 1998-10-23 2000-01-11 Reliance Medical Prodcuts, Inc. Combined outer chair frame with armrests and a footrest
USD419343S (en) * 1999-05-12 2000-01-25 Reliance Medical Products, Inc. Outer frame cover for a chair
USD420233S (en) * 1999-05-12 2000-02-08 Reliance Medical Products, Inc. Chair armrest
USD423262S (en) * 1999-05-13 2000-04-25 Reliance Medical Products, Inc. Chair footrest
USD425735S (en) * 1999-08-18 2000-05-30 Reliance Medical Products, Inc. Chair cushion
USD424337S (en) * 1999-08-18 2000-05-09 Reliance Medical Products, Inc. Chair cushion
USD425341S (en) * 1999-08-18 2000-05-23 Reliance Medical Products, Inc. Combined chair cushion and headrest unit
US6406294B1 (en) 1999-11-24 2002-06-18 Bell Dental Products, Llc Self contained dental chair with integrated compressor and vacuum pump and methods
WO2008094865A1 (fr) 2007-01-29 2008-08-07 Herman Miller, Inc. Structure de siège et procédés d'utilisation
DE102007026600B4 (de) * 2007-06-05 2009-02-19 Recaro Gmbh & Co. Kg Fahrzeugsitz, insbesondere Kraftfahrzeugsitz
CN105380769A (zh) * 2015-12-25 2016-03-09 刘淑芬 一种靠背角度可调且由传感器控制的医疗用椅
CN105380768A (zh) * 2015-12-25 2016-03-09 尚庆光 一种靠背角度可调且带传感器和耐磨垫的医疗用椅
US11779501B2 (en) * 2019-09-17 2023-10-10 Engle Dental Systems, LLC Traverse dental chair and a sensor assembly for monitoring positions thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA620822A (en) * 1961-05-23 Anton Lorenz Leg rest mechanism for reclining articles of furniture
US30648A (en) * 1860-11-13 Heel-shave
US2578708A (en) * 1946-02-26 1951-12-18 Lorenz Anton Reclining article of furniture
US2714922A (en) * 1952-10-17 1955-08-09 Joseph L Mckibban Adjustable reclining chair
US2860691A (en) * 1955-02-24 1958-11-18 Orville S Caesar Reclining chair for passenger vehicles
DE1248860B (de) * 1963-06-19 1967-08-31 Kabushiki Kaisha Monta Sersakusho Kyoto (Japan) Zahnarztlicher Behandlungsstuhl
US3405900A (en) * 1966-02-23 1968-10-15 Lear Siegler Inc Wedge actuated seat adjuster
US3719391A (en) * 1970-04-17 1973-03-06 V Neri Chair for use in dentistry
DE2141022C3 (de) * 1971-08-16 1978-04-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Zahnärztlicher Patientenstuhl mit neigbarer Rückenlehne und verstellbarem Sitz
DE2226572C3 (de) * 1972-05-31 1980-08-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Zahnärztlicher Patientenstuhl mit neigbarer Rückenlehne und verstellbarem Sitz
US3934929A (en) * 1974-09-03 1976-01-27 Sybron Corporation Adjustable dental chair
US3948559A (en) * 1975-02-21 1976-04-06 Dentsply Research & Development Corporation Adjustable chair
CH624575A5 (en) * 1978-02-03 1981-08-14 Reinhard P Mikrona Ag Treatment chair, especially for orthodontic treatments
DE3130444C2 (de) * 1981-07-23 1986-02-06 Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid Fahrzeugsitz

Also Published As

Publication number Publication date
EP0088956A2 (fr) 1983-09-21
JPS58169449A (ja) 1983-10-05
JPH0246218B2 (fr) 1990-10-15
DE3209773A1 (de) 1983-09-22
US4505514A (en) 1985-03-19
EP0088956A3 (en) 1984-05-02
DE3364237D1 (en) 1986-07-31

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