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EP0088957B1 - Fauteuil de soins dentaires - Google Patents

Fauteuil de soins dentaires Download PDF

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Publication number
EP0088957B1
EP0088957B1 EP83102087A EP83102087A EP0088957B1 EP 0088957 B1 EP0088957 B1 EP 0088957B1 EP 83102087 A EP83102087 A EP 83102087A EP 83102087 A EP83102087 A EP 83102087A EP 0088957 B1 EP0088957 B1 EP 0088957B1
Authority
EP
European Patent Office
Prior art keywords
head support
spindle
casing
headrest
dental treatment
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
EP83102087A
Other languages
German (de)
English (en)
Other versions
EP0088957A2 (fr
EP0088957A3 (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 EP0088957A2 publication Critical patent/EP0088957A2/fr
Publication of EP0088957A3 publication Critical patent/EP0088957A3/de
Application granted granted Critical
Publication of EP0088957B1 publication Critical patent/EP0088957B1/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
    • A61G15/10—Parts, details or accessories
    • A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
    • A61G15/125—Head-rests

Definitions

  • the invention relates to a dental treatment chair, on the 'backrest by means of a support member a headrest which is displaceable in the longitudinal axis of the backrest is held, which can be adjusted by means of an adjusting device arranged in the headrest housing about a horizontal transverse axis in various inclination positions, can be locked in these positions and can be operated by hand Release member is unlockable again.
  • a headrest for a dental treatment chair in which two mutually engaging by spring force, and disengageable by pressing a button toothed coupling members are available, one of which with the headrest housing and the other with the Backrest or the support member is connected.
  • a disadvantage of such a construction is that when the headrest is loaded, ie when a patient is in the chair and the head rests on the headrest, the device is relatively difficult to unlock. Unlocking the device can only be facilitated by relieving the headrest.
  • Another disadvantage is that the headrest requires two-hand operation; the release link must be operated with one hand and the headrest must be held against tipping over with the other hand.
  • Another disadvantage is that only a stepless adjustment of the headrest is possible due to the teeth.
  • a headrest for a treatment chair in which the headrest is divided by longitudinal division into a headrest frame and a headrest connected to the frame via a hinge joint.
  • a linkage is arranged between the two parts and is adjustable by means of a handle that can be actuated from the outside.
  • the horizontal transverse axis via which the inclination of the headrest relative to the backrest can be adjusted, contains a latching catch that can be disengaged against the force of a spring by lateral pressure on the axis.
  • the inclined position of the headrest can be adjusted after unlocking the pawl latch by subsequent actuation of the handle, the two headrest parts connected by the hinge joint also being adjusted relative to one another depending on the pivoting movement of the headrest.
  • a headrest arrangement is known in which a linkage is also arranged within the headrest housing to adjust the inclination of the headrest.
  • a locking mechanism is provided for locking the headrest in any inclination position, which can be unlocked by hand using a handle provided on the rear of the headrest.
  • the support member which is adjustably held in the backrest, consists of two parts, which can be adjusted both together and relative to one another along the backrest.
  • the headrest is articulated at the lower end to one part and approximately in the middle to the other part of the support member parts, the latter part also containing another joint, which forms a joint triangle with the other two joints.
  • this articulated connection can either be used to extend and retract the entire headrest along the backrest or, when the two support link parts are in relative position, to change the inclination of the headrest relative to the backrest.
  • the linkage which is necessary to form the joint triangle and to be able to bring the headrest into the desired inclination positions, requires a relatively large amount of space, which makes it impossible to make the headrest relatively flat and without projecting linkage parts.
  • the invention specified in claim 1 has for its object to improve a treatment chair of the type mentioned in such a way that a stepless headrest adjustment in one-hand operation is possible even in a loaded state without great effort for the operator and the headrest is relatively flat and without protruding mechanical linkages can be trained.
  • FIG. 1 shows a dental treatment chair, on the backrest 1 of which a headrest 2 can be pulled out by means of a support member 3, that is to say is adjustable in the direction of the arrow 4.
  • the support member 3 is for this purpose in a known manner held in the backrest by means of a suitable longitudinal guide.
  • Fig. 2 which shows a top view of the headrest 2 with the cushion cover removed, reveals the inner structure of the adjusting device, with which an adjustment of the headrest in different inclination positions in the direction of arrow 5 in Fig. 1 is made possible.
  • a spindle 7 is rotatably mounted, which is driven by a belt 8 by an electric motor 9 fastened there approximately in the middle of the housing.
  • a spindle nut 10 which, as can be seen from FIG. 3, is secured against rotation by a tongue and groove guide 11.
  • a rocker arm 12 is seated on the nut 10 and is pivotably mounted on the opposite longitudinal side of the headrest 2 by means of a bearing 13.
  • a pull rod 15 is mounted by means of a further bearing 14, which is articulated on an extension of the support member 3, designated 16.
  • Fig. 4 shows that the axle bearing 17 of the pull and push rod 15 on the attachment part 16 to the bearing axis 18, with which the headrest housing 6 is articulated on the support member 3, forms a lever arm a.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (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 (4)

1. Fauteuil pour soins dentaires, sur le dossier (1) duquel se trouve maintenu, à l'aide d'un organe de soutien (3), un appui-tête (2) déplaçable suivant l'axe longitudinal du dossier et qui peut être réglé à l'aide d'un dispositif de réglage disposé dans le logement (6) de l'appui-tête, autour d'un axe transversal horizontal (18), dans différentes positions inclinées, peut être bloqué dans ces positions et peut être à nouveau déverrouillé au moyen d'un organe de déclenchement (20) pouvant être actionné manuellement, caractérisé par le fait que le dispositif de réglage contient un moteur électrique (9) pouvant être branché et débranché à l'aide de l'organe de déclenchement (20), et une broche (7) disposée dans le logement (6) de l'appui-tête, suivant la direction longitudinale de ce dernier, et entraînée par le moteur électrique (9), et un écrou de broche (10) engrenant avec la broche et qui est attaqué par un levier basculant (12) disposé transversalement par rapport à la direction longitudinale du logement (6) de l'appui-tête, et qui est monté (13) de manière à pouvoir pivoter sur le logement (6) de l'appui-tête, sur le côté situé à l'opposé de la broche (7), et qu'il est prévu une barre de traction ou de pression (15) qui est articulée d'une part au voisinage du tourillon d'axe (13) sur le levier basculant (12) et d'autre part sur un appendice saillant (16) de l'organe de soutien (3), à une distance (a) formant un bras de levier (a) par rapport à l'axe transversal (18).
2. Fauteuil de traitement suivant la revendication 1, caractérisé par le fait que le moteur électrique (9) est disposé approximativement au centre du logement (6) de l'appui-tête et que la broche (7) est entraînée par l'intermédiaire d'une courroie (8).
3. Fauteuil de traitement suivant la revendication 1, caractérisé par le fait que le levier (12), qui attaque l'écrou de broche (10), s'appuie sur l'écrou, uniquement dans une direction de réglage correspondant au mouvement d'inclinaison de l'appui-tête vers l'arrière, tandis qu'il peut être déplacé librement dans l'autre direction de réglage.
4. Fauteuil de traitement suivant la revendication 1, caractérisé par le fait que l'écrou de broche (7) est guidé par l'intermédiaire d'un dispositif de guidage à écrou/ressort (11) le long de la broche (7), contre toute rotation, sur le logement (6) de l'appui-tête.
EP83102087A 1982-03-17 1983-03-03 Fauteuil de soins dentaires Expired EP0088957B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8207541U 1982-03-17
DE8207541 1982-03-17

Publications (3)

Publication Number Publication Date
EP0088957A2 EP0088957A2 (fr) 1983-09-21
EP0088957A3 EP0088957A3 (en) 1984-04-25
EP0088957B1 true EP0088957B1 (fr) 1986-12-30

Family

ID=6738113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102087A Expired EP0088957B1 (fr) 1982-03-17 1983-03-03 Fauteuil de soins dentaires

Country Status (3)

Country Link
EP (1) EP0088957B1 (fr)
JP (1) JPS58169448A (fr)
DE (1) DE3368515D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0346755Y2 (fr) * 1986-12-11 1991-10-03
DE59105010D1 (de) * 1991-06-10 1995-04-27 Siemens Ag Zahnärztlicher Patientenstuhl mit verstellbarer Kopfstütze.
DE10014063A1 (de) * 2000-03-22 2001-09-27 Kaltenbach & Voigt Medizinischer oder dentalmedizinischer Behandlungsstuhl oder eine Kopfstütze für einen solchen Behandlungsstuhl
DE102006055211B3 (de) * 2006-11-21 2008-05-21 Sirona Dental Systems Gmbh Verstellbare Kopfstütze für einen Dentalarbeitsplatz

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471198A (en) * 1967-10-16 1969-10-07 Lear Siegler Inc Headrest assembly
US3603642A (en) * 1969-10-13 1971-09-07 Sybron Corp Articulated headrest for dental chairs and the like
US3817576A (en) * 1972-10-02 1974-06-18 Pennwalt Corp Dental chair with adjustable headrest
DE2932344A1 (de) * 1979-08-09 1981-02-26 Ritter Ag Vorrichtung zur verstellung einer kopfstuetze
JPS5746979Y2 (fr) * 1979-12-27 1982-10-15

Also Published As

Publication number Publication date
EP0088957A2 (fr) 1983-09-21
EP0088957A3 (en) 1984-04-25
DE3368515D1 (en) 1987-02-05
JPH0310334B2 (fr) 1991-02-13
JPS58169448A (ja) 1983-10-05

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