EP1505938A1 - Treatment chair for dental patients - Google Patents

Treatment chair for dental patients

Info

Publication number
EP1505938A1
EP1505938A1 EP03725184A EP03725184A EP1505938A1 EP 1505938 A1 EP1505938 A1 EP 1505938A1 EP 03725184 A EP03725184 A EP 03725184A EP 03725184 A EP03725184 A EP 03725184A EP 1505938 A1 EP1505938 A1 EP 1505938A1
Authority
EP
European Patent Office
Prior art keywords
seat
backrest
levers
bar linkage
treatment chair
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
EP03725184A
Other languages
German (de)
French (fr)
Other versions
EP1505938B1 (en
Inventor
Michael Grimm
Helmut Baur
Alexander Rauh-Hirschauer
Reinhold Von Bank
Karlheinz Rapp
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.)
Kaltenbach and Voigt GmbH
Original Assignee
Kaltenbach and Voigt GmbH
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
Priority claimed from DE10244724A external-priority patent/DE10244724A1/en
Application filed by Kaltenbach and Voigt GmbH filed Critical Kaltenbach and Voigt GmbH
Publication of EP1505938A1 publication Critical patent/EP1505938A1/en
Application granted granted Critical
Publication of EP1505938B1 publication Critical patent/EP1505938B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 treatment chair for dental patients, as specified in the preamble of claim 1.
  • Dental chairs for dental patients are versatile adjustable so that the patient can be brought into an optimal position for treatment by the dentist.
  • the backrest can be pivoted so that the patient can be brought into a lying position.
  • the suspension of the backrest on the seat support is designed in such a way that the pivot axis of the backrest lies somewhat above the seat plane by a distance, as shown in FIG. 1.
  • this means that the lower end of the backrest is offset by a distance A from the plane of the seat.
  • This distance is designed for patients of average size.
  • the object of the invention is accordingly to design a dental treatment chair so that even in the case of small patients in a lying position
  • Thighs are supported by the seat of the treatment chair.
  • Figure 1 shows a conventional treatment chair in a lying position with a normal sized patient.
  • FIG. 1 shows the treatment chair of Figure 1 in the same
  • Figure 3 shows a treatment chair according to an embodiment of the invention with a locking mechanism.
  • Figures 4a and 4b show a further embodiment with a
  • Parallelogram guide as a setting device.
  • Figures 5a and 5b show an embodiment with a motor-driven Nerstellvorraum.
  • FIGS. 6a and 6b show a further exemplary embodiment with a motor-driven ner adjusting device.
  • the treatment chair according to FIG. 1 which represents the prior art, has a seat support 1, to which a seat 2 is fastened with two suspensions 12, 13. On the seat support 1 there is also an upwardly projecting support 11, on which the backrest 3 is suspended rotatably about a pivot axis 31. At the upper end of the backrest 3 there is a headrest 4, which is relative to the
  • Backrest 3 is adjustable.
  • the pivot axis 31 is at a distance A from the plane E of the seat 2 (extended beyond the end of the seat). Accordingly, there is also a distance between the lower end 32 of the backrest 3 and the seat 2.
  • the patient's thighs lie on level E of the seat 2 in the lying position of the treatment chair shown.
  • the seat 2 on the front suspension 12 can be pivoted about an axis S.
  • the rear suspension is designed as a ner setting device 15.
  • it consists of a support 16 projecting downward from the seat, which has slots 17 arranged at regular intervals, in which a pivot lever 18 engages.
  • the seat 2 is held in different pivot positions.
  • two carriers 16 and two pivot levers 18 can also be provided for locking them.
  • the seat is pivoted upward in accordance with FIG. 3 such that the end of the seat facing the backrest supports the patient's thighs.
  • the ner adjusting device 15 for example toggle levers, spindles, locking elements, pneumatic or hydraulic devices, motor and in particular electromotive actuators can be used, which in turn via a program control simultaneously with the headrest, the backrest and the seat in that of the body size appropriate position of the patient can be moved.
  • the seat 2 is fastened to the seat support 1 with a four-bar linkage 20 with pivotable levers 21a, 21b.
  • This quadrilateral joint 20 can form a parallelogram, so that when the seat is lifted it is moved parallel to the plane of the seat support, as shown in FIGS. 4a, 4b.
  • FIGS. 4a, 4b According to FIGS.
  • the quadrilateral joint 20 can also be designed as an oblique parallelogram.
  • the adjustment can take place in such a way that one of the articulated levers 20a, 20b has a lock nut 24 which is rotatably fastened to it and into which a motor-operated spindle 22 engages, this spindle 22 itself being pivotably suspended, so that none when the lock nut 24 is pulled in or out Canting occurs.
  • the lock nut 24 is moved forwards or backwards on the spindle 22 and thus the seat 2 is raised or lowered in accordance with the four-bar linkage 20.
  • the slotted support 16 shown in FIG. 3 is replaced by an arrangement of two levers 19a, 19b which are pivotally connected to one another, a lock nut 24 being inserted at the connection point, into which a motor-driven spindle 22 engages , Depending on the direction of rotation of the motor 23, the angle between the two levers 19a, 19b is increased or decreased, so that the seat 2 is raised or lowered.
  • FIGS. 4a, 4b, 5a, 5b and 6a, 6b have the advantage over the embodiment according to FIG. 3 that they allow a continuous adjustment.
  • the drive with an electric motor also allows program-controlled adjustment by measuring the number of revolutions of the motor and executing the adjustment movement as a function thereof.
  • a servomotor is expediently used as the drive motor.

Abstract

The seat (2) of a dental treatment chair is pivotally mounted on the seat support (1). The distance of the level of the seat from the lower end of the seat back (3) of the treatment chair can be adjusted by an adjusting device (15).

Description

Behandlungsstuhl für zahnärztliche Patienten Dental chair for dental patients
Die Erfindung betrifft einen Behandlungsstuhl für zahnärztliche Patienten, wie er im Oberbegriff des Patentanspruches 1 angegeben ist.The invention relates to a treatment chair for dental patients, as specified in the preamble of claim 1.
Behandlungsstühle für zahnärztliche Patienten sind vielseitig verstellbar, damit der Patient in eine für die Behandlung durch den Zahnarzt optimale Lage gebracht werden kann. Insbesondere ist die Rückenlehne verschwenkbar, damit der Patient in eine Liegeposition gebracht werden kann. Aus anatomischen Gründen ist die Aufhängung der Rückenlehne an dem Sitzträger dabei so gestaltet, dass die Schwenkachse der Rückenlehne um einen Abstand etwas oberhalb der Sitzebene liegt, wie dies in Figur 1 dargestellt ist. In der Liegeposition führt das dazu, dass das untere Ende der Rückenlehne gegenüber der Ebene der Sitzbank um einen Abstand A versetzt ist. Dieser Abstand ist für Patienten durchschnittlicher Größe bemessen. Für die Lagerung kleiner Patienten und insbesondere von Kindern führt dies zu einer Liegeposition, die nicht ihrer Anatomie entspricht, da das Becken, wie in Figur 2 dargestellt, am unteren Ende der Rückenlehne aufliegt und infolge des Abstandes der Ebene der Sitzbank von dem Ende der Rückenlehne die Oberschenkel nicht von der Sitzbank abgestützt werden, sondern sich zwischen den Oberschenkeln und der Sitzbankebene ein freier Raum B bildet.Dental chairs for dental patients are versatile adjustable so that the patient can be brought into an optimal position for treatment by the dentist. In particular, the backrest can be pivoted so that the patient can be brought into a lying position. For anatomical reasons, the suspension of the backrest on the seat support is designed in such a way that the pivot axis of the backrest lies somewhat above the seat plane by a distance, as shown in FIG. 1. In the lying position, this means that the lower end of the backrest is offset by a distance A from the plane of the seat. This distance is designed for patients of average size. For the positioning of small patients and especially children, this leads to a lying position which does not correspond to their anatomy, since the pelvis, as shown in FIG. 2, rests on the lower end of the backrest and due to the distance of the plane of the seat from the end of the backrest the thighs are not supported by the seat, but a free space B is formed between the thighs and the seat level.
Um diesen Mangel auszugleichen ist bereits ein spezieller Kindersitz entwickelt worden, der auf den Behandlungsstuhl aufgelegt wird und dadurch den genannten Abstand ausgleicht. Es handelt sich um eine Zusatzausrüstung, die für jeden Einsatz montiert werden und danach für die Behandlung von normal großen Patienten wieder entfernt werden muss. Aufgabe der Erfindung ist dementsprechend, einen zahnärztlichen Behandlungsstuhl so auszubilden, dass auch bei kleinen Patienten in einer Liegeposition dieTo compensate for this shortcoming, a special child seat has already been developed, which is placed on the treatment chair and thereby compensates for the distance mentioned. It is an additional piece of equipment that must be installed for every application and then removed for the treatment of normal-sized patients. The object of the invention is accordingly to design a dental treatment chair so that even in the case of small patients in a lying position
Oberschenkel durch die Sitzbank des Behandlungsstuhles abgestützt werden.Thighs are supported by the seat of the treatment chair.
Diese Aufgabe wird mit einem Behandlungsstuhl nach dem Oberbegriff des Patentanspruches 1 gelöst, der erfindungsgemäß die im Kennzeichenteil des Anspruches 1 genannten Merkmale aufweist.This object is achieved with a treatment chair according to the preamble of claim 1, which according to the invention has the features mentioned in the characterizing part of claim 1.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unter ansprächen.Advantageous developments of the invention result from the sub-claims.
Im Folgenden wird die Erfindung anhand der Figuren beschrieben und näher erläutert.The invention is described below and explained in more detail with reference to the figures.
Figur 1 zeigt einen herkömmlichen Behandlungsstuhl in Liegeposition mit einem normal großen Patienten.Figure 1 shows a conventional treatment chair in a lying position with a normal sized patient.
Figur 2 zeigt den Behandlungsstuhl nach Figur 1 in der gleichenFigure 2 shows the treatment chair of Figure 1 in the same
Liegeposition mit einem kleinen Patienten.Lying position with a small patient.
Figur 3 zeigt einen Behandlungsstuhl gemäß einem Ausführungsbeispiel der Erfindung mit einem Rastmechanismus.Figure 3 shows a treatment chair according to an embodiment of the invention with a locking mechanism.
Figuren 4a und 4b zeigen ein weiteres Ausführungsbeispiel mit einerFigures 4a and 4b show a further embodiment with a
Parallelogramm-Führung als Nerstellvorrichtung.Parallelogram guide as a setting device.
Figuren 5a und 5b zeigen ein Ausführungsbeispiel mit einer motorisch angetriebenen Nerstellvorrichtung.Figures 5a and 5b show an embodiment with a motor-driven Nerstellvorrichtung.
Figuren 6a und 6b zeigen ein weiteres Ausführungsbeispiel mit einer motorisch angetriebenen Nerstellvorrichtung.FIGS. 6a and 6b show a further exemplary embodiment with a motor-driven ner adjusting device.
Der Behandlungsstuhl nach Figur 1, der den Stand der Technik darstellt, weist einen Sitzträger 1 auf, an dem mit zwei Aufhängungen 12, 13 eine Sitzbank 2 befestigt ist. An dem Sitzträger 1 befindet sich weiter ein nach oben vorstehender Träger 11, an dem die Rückenlehne 3 um eine Schwenkachse 31 drehbar aufgehängt ist. Am oberen Ende der Rückenlehne 3 befindet sich eine Kopfstütze 4, die relativ zurThe treatment chair according to FIG. 1, which represents the prior art, has a seat support 1, to which a seat 2 is fastened with two suspensions 12, 13. On the seat support 1 there is also an upwardly projecting support 11, on which the backrest 3 is suspended rotatably about a pivot axis 31. At the upper end of the backrest 3 there is a headrest 4, which is relative to the
Rückenlehne 3 einstellbar ist. Die Schwenkachse 31 hat in dem dargestellten Beispiel einen Abstand A von der (über das Ende der Sitzbank hinaus verlängerten) Ebene E der Sitzbank 2. Demzufolge besteht auch ein Abstand zwischen dem unteren Ende 32 der Rückenlehne 3 und der Sitzbank 2. Bei normal großen Patienten liegen in der dargestellten Liegeposition des Behandlungsstuhles die Oberschenkel des Patienten auf der Ebene E der Sitzbank 2 auf.Backrest 3 is adjustable. In the example shown, the pivot axis 31 is at a distance A from the plane E of the seat 2 (extended beyond the end of the seat). Accordingly, there is also a distance between the lower end 32 of the backrest 3 and the seat 2. In the case of normal-sized patients the patient's thighs lie on level E of the seat 2 in the lying position of the treatment chair shown.
Bei kleinen Patienten ist selbst bei ganz eingeschobener Kopfstütze 4 die Rückenlehne 3 noch zu lang, so dass das Becken des Patienten ganz auf der Rückenlehne aufliegt und demzufolge zwischen den Oberschenkeln des Patienten und der Sitzbank 2 ein Zwischenraum B entsteht, vergleiche Figur 2.In the case of small patients, even when the headrest 4 is pushed in completely, the backrest 3 is still too long, so that the patient's pelvis lies completely on the backrest and consequently an intermediate space B is created between the patient's thighs and the seat 2, see FIG. 2.
Um diesen Zwischenraum zu verhindern ist gemäß der Erfindung vorgesehen, dass entsprechend Figur 3 die Sitzbank 2 an der vorderen Aufhängung 12 um eine Achse S schwenkbar ist. Die hintere Aufhängung ist als Nerstelleinrichtung 15 ausgebildet. In dem dargestellten Ausführungsbeispiel besteht sie aus einem von der Sitzbank nach unten vorstehenden Träger 16, der in regelmäßigem Abstand untereinander angeordnete Schlitze 17 aufweist, in die ein Schwenkhebel 18 eingreift. Durch Auswahl der entsprechenden Schlitze 17 wird die Sitzbank 2 in verschiedenen Schwenkpositionen gehalten. Zur Erhöhung der seitlichen Stabilität können auch zwei Träger 16 und zwei Schwenkhebel 18 zu deren Arretierung vorgesehen sein. Bei kleinen Patienten wird die Sitzbank entsprechend Figur 3 so nach oben geschwenkt, dass das der Rückenlehne zugewandte Ende der Sitzbank die Oberschenkel des Patienten abstützt. Für die Nerstelleinrichtung 15 sind verschiedene Ausführungen denkbar, beispielsweise können Kniehebel, Spindeln, Rastelemente, pneumatische oder hydraulische Vorrichtungen, motorische und insbesondere elektromotorische Stelltriebe verwendet werden, wobei diese wiederum über eine Programmsteuerung zugleich mit der Kopfstütze, der Rückenlehne und der Sitzbank in die der Körpergröße des Patienten entsprechende Position gefahren werden können. Nach einer in den Figuren 4a, 4b dargestellten alternativen Ausführungsform ist die Sitzbank 2 mit einem Gelenkviereck 20 mit schwenkbaren Hebeln 21a, 21b am Sitzträger 1 befestigt. Dieses Gelenkviereck 20 kann ein Parallelogramm bilden, so dass beim Anheben die Sitzbank parallel zur Ebene des Sitzträgers verschoben wird, wie dies in den Figuren 4a, 4b dargestellt ist. Entsprechend den Figuren 5a, 5b kann das Gelenkviereck 20 auch als schiefes Parallelogramm ausgebildet sein. Die Verstellung kann in der Weise erfolgen, dass einer der Gelenkhebel 20a, 20b eine an ihm drehbar befestigte Schlossmutter 24 aufweist, in die eine motorbetriebene Spindel 22 eingreift, wobei diese Spindel 22 selbst schwenkbar aufgehängt ist, damit beim Heranziehen oder Herausfahren der Schlossmutter 24 keine Verkantung auftritt. Je nach Drehrichtung des Motors wird die Schlossmutter 24 auf der Spindel 22 vor- oder zurückgefahren und damit entsprechend dem Gelenkviereck 20 die Sitzbank 2 angehoben oder abgesenkt.In order to prevent this gap, it is provided according to the invention that, according to FIG. 3, the seat 2 on the front suspension 12 can be pivoted about an axis S. The rear suspension is designed as a ner setting device 15. In the exemplary embodiment shown, it consists of a support 16 projecting downward from the seat, which has slots 17 arranged at regular intervals, in which a pivot lever 18 engages. By selecting the appropriate slots 17, the seat 2 is held in different pivot positions. To increase the lateral stability, two carriers 16 and two pivot levers 18 can also be provided for locking them. In the case of small patients, the seat is pivoted upward in accordance with FIG. 3 such that the end of the seat facing the backrest supports the patient's thighs. Various designs are conceivable for the ner adjusting device 15, for example toggle levers, spindles, locking elements, pneumatic or hydraulic devices, motor and in particular electromotive actuators can be used, which in turn via a program control simultaneously with the headrest, the backrest and the seat in that of the body size appropriate position of the patient can be moved. According to an alternative embodiment shown in FIGS. 4a, 4b, the seat 2 is fastened to the seat support 1 with a four-bar linkage 20 with pivotable levers 21a, 21b. This quadrilateral joint 20 can form a parallelogram, so that when the seat is lifted it is moved parallel to the plane of the seat support, as shown in FIGS. 4a, 4b. According to FIGS. 5a, 5b, the quadrilateral joint 20 can also be designed as an oblique parallelogram. The adjustment can take place in such a way that one of the articulated levers 20a, 20b has a lock nut 24 which is rotatably fastened to it and into which a motor-operated spindle 22 engages, this spindle 22 itself being pivotably suspended, so that none when the lock nut 24 is pulled in or out Canting occurs. Depending on the direction of rotation of the motor, the lock nut 24 is moved forwards or backwards on the spindle 22 and thus the seat 2 is raised or lowered in accordance with the four-bar linkage 20.
Nach der in den Figuren 6a, 6b dargestellten Ausführungsform ist der in Figur 3 dargestellte geschlitzte Träger 16 durch eine Anordnung aus zwei schwenkbar miteinander verbundenen Hebeln 19a, 19b ersetzt, wobei an der Verbindungsstelle eine Schlossmutter 24 eingesetzt ist, in die eine motorbetriebene Spindel 22 eingreift. Je nach Drehrichtung des Motors 23 wird der Winkel zwischen den beiden Hebeln 19a, 19b vergrößert oder verkleinert, so dass die Sitzbank 2 angehoben oder abgesenkt wird.According to the embodiment shown in FIGS. 6a, 6b, the slotted support 16 shown in FIG. 3 is replaced by an arrangement of two levers 19a, 19b which are pivotally connected to one another, a lock nut 24 being inserted at the connection point, into which a motor-driven spindle 22 engages , Depending on the direction of rotation of the motor 23, the angle between the two levers 19a, 19b is increased or decreased, so that the seat 2 is raised or lowered.
Die Ausführangsformen nach den Figuren 4a, 4b, 5a, 5b und 6a, 6b haben gegenüber der Ausführungsform nach der Figur 3 den Vorteil, dass sie eine stufenlose Verstellung erlauben. Der Antrieb mit einem Elektromotor erlaubt auch eine programmgesteuerte Verstellung, indem die Zahl der Umdrehungen des Motor gemessen und in Abhängigkeit davon die Verstellbewegung ausgeführt wird. Zweckmäßigerweise wird als Antriebsmotor ein Stellmotor eingesetzt. The embodiments according to FIGS. 4a, 4b, 5a, 5b and 6a, 6b have the advantage over the embodiment according to FIG. 3 that they allow a continuous adjustment. The drive with an electric motor also allows program-controlled adjustment by measuring the number of revolutions of the motor and executing the adjustment movement as a function thereof. A servomotor is expediently used as the drive motor.

Claims

Patentansprüche claims
1. Behandlungsstuhl für zahnärztliche Patienten mit einem Sitzträger (1), an dem eine Sitzbank (2) befestigt und eine Rückenlehne (3) an ihrem unteren Ende schwenkbar angeordnet ist, und mit einer gegenüber der Rückenlehne (3) verstellbaren Kopfstütze (4), dadurch gekennzeichnet, dass die Sitzbank (2) schwenkbar am Sitzträger (1) angeordnet und der1. Dental chair for dental patients with a seat support (1) to which a seat (2) is attached and a backrest (3) is pivotably arranged at its lower end, and with a headrest (4) that is adjustable relative to the backrest (3), characterized in that the seat (2) is pivotally arranged on the seat support (1) and the
Abstand der Ebene (E) der Sitzbank (2) von dem der Sitzbank zugewandten unteren Ende (32) der Rückenlehne (3) mit einer Verstellvorrichtung (15) einstellbar ist.The distance of the plane (E) of the seat (2) from the lower end (32) of the backrest (3) facing the seat can be adjusted with an adjusting device (15).
2. Behandlungsstuhl nach Anspruch 1, dadurch gekennzeichnet, dass die Schwenkachse (S) der Sitzbank (2) im vorderen Bereich des Sitzträgers (1) angeordnet ist.2. Treatment chair according to claim 1, characterized in that the pivot axis (S) of the seat (2) is arranged in the front region of the seat carrier (1).
Behandlungsstuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Verstellvorrichtung (15) als Gelenkviereck ausgebildet ist.Treatment chair according to claim 1 or 2, characterized in that the adjusting device (15) is designed as a four-bar linkage.
4. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Sitzbank einen nach unten vorstehenden Träger (16) aufweist, der in regelmäßigem Abstand angeordnete Schlitze (17) besitzt, in welche ein4. The device according to claim 1 or 2, characterized in that the seat has a downwardly projecting carrier (16) which has slots (17) arranged at regular intervals, into which a
Schwenkhebel (18) einrückbar ist. Vorrichtung nach einem der Anspräche 1 oder 2, dadurch gekennzeichnet, dass die Verstellvorrichtung (15) eine Anordnung aus zwei gelenkig miteinander verbundenen Hebeln (19a, 19b) aufweist, wobei der eine Hebel (19a) gelenkig an der Sitzbank (2) und der andere Hebel (19b) gelenkig an dem Sitzträger (1) angeordnet ist.Swivel lever (18) can be engaged. Device according to one of Claims 1 or 2, characterized in that the adjusting device (15) has an arrangement of two levers (19a, 19b) which are connected to one another in an articulated manner, one lever (19a) being articulated on the seat (2) and the other Lever (19b) is articulated on the seat support (1).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Gelenkverbindung der beiden Hebel (19a, 19b) eine Schlossmutter (24) aufweist, in die eine von einem Motor (23) getriebene Spindel (22) eingreift.6. The device according to claim 5, characterized in that the articulated connection of the two levers (19a, 19b) has a lock nut (24) into which a spindle (22) driven by a motor (23) engages.
7. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Verstellvorrichtung (15) ein Gelenkviereck (20) mit zwei Hebeln (21a, 21b) aufweist.7. The device according to claim 1 or 2, characterized in that the adjusting device (15) has a four-bar linkage (20) with two levers (21a, 21b).
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass das Gelenkviereck (20) ein Parallelogramm bildet.8. The device according to claim 7, characterized in that the four-bar linkage (20) forms a parallelogram.
9. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass das Gelenkviereck (20) ein schiefes Parallelogramm bildet. 9. The device according to claim 7, characterized in that the four-bar linkage (20) forms a skewed parallelogram.
10. Vorrichtung nach Anspruch 7 bis 9, dadurch gekennzeichnet, dass einer der Hebel (21a, 21b) des Gelenkvierecks (20) mit einer Schlossmutter (24) versehen ist, in die eine motorbetriebene Spindel (22) eingreift.10. The device according to claim 7 to 9, characterized in that one of the levers (21a, 21b) of the four-bar linkage (20) is provided with a lock nut (24) into which a motor-driven spindle (22) engages.
11. Behandlungsstuhl nach einem der Anspräche 1 bis 10, dadurch gekennzeichnet, dass die Verstellvorrichtung (15) programmsteuerbar ist. 11. Dental chair according to one of claims 1 to 10, characterized in that the adjusting device (15) is program-controllable.
EP03725184A 2002-05-22 2003-05-09 Treatment chair for dental patients Expired - Lifetime EP1505938B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10222659 2002-05-22
DE10222659 2002-05-22
DE10244724 2002-09-25
DE10244724A DE10244724A1 (en) 2002-05-22 2002-09-25 Dental chair for dental patients
PCT/EP2003/004887 WO2003096959A1 (en) 2002-05-22 2003-05-09 Treatment chair for dental patients

Publications (2)

Publication Number Publication Date
EP1505938A1 true EP1505938A1 (en) 2005-02-16
EP1505938B1 EP1505938B1 (en) 2010-02-03

Family

ID=29550942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03725184A Expired - Lifetime EP1505938B1 (en) 2002-05-22 2003-05-09 Treatment chair for dental patients

Country Status (3)

Country Link
EP (1) EP1505938B1 (en)
JP (1) JP4275619B2 (en)
WO (1) WO2003096959A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5129467B2 (en) * 2006-07-27 2013-01-30 株式会社吉田製作所 Dental treatment chair
CN108042309B (en) * 2017-12-22 2024-03-26 佛山市中创医疗器械有限公司 High turning point dental unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747644A (en) * 1928-06-21 1930-02-18 Xorol R Oliver Chair for practicing electrolysis
US3041121A (en) * 1960-09-26 1962-06-26 Ritter Co Inc Surgical table
DE1430929A1 (en) * 1964-08-27 1968-11-21 Daimler Benz Ag Adjustable seat, especially for commercial vehicles
GB1455009A (en) * 1972-12-22 1976-11-10 Sirot R A Adjustable seats particularly for use in aircraft
CA2122294A1 (en) * 1994-04-27 1995-10-28 Peter C. Boetzkes Dental patient's chair

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03096959A1 *

Also Published As

Publication number Publication date
EP1505938B1 (en) 2010-02-03
JP4275619B2 (en) 2009-06-10
JP2005529644A (en) 2005-10-06
WO2003096959A1 (en) 2003-11-27

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