EP1131034B1 - Examination chair - Google Patents

Examination chair Download PDF

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Publication number
EP1131034B1
EP1131034B1 EP99964488A EP99964488A EP1131034B1 EP 1131034 B1 EP1131034 B1 EP 1131034B1 EP 99964488 A EP99964488 A EP 99964488A EP 99964488 A EP99964488 A EP 99964488A EP 1131034 B1 EP1131034 B1 EP 1131034B1
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EP
European Patent Office
Prior art keywords
backrest
seat
axis
column
stop
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 - Lifetime
Application number
EP99964488A
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German (de)
French (fr)
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EP1131034A1 (en
Inventor
Ivan Boruta
Vilém; NEUMAN
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Maquet GmbH
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Maquet GmbH
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Publication date
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Publication of EP1131034A1 publication Critical patent/EP1131034A1/en
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Publication of EP1131034B1 publication Critical patent/EP1131034B1/en
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    • 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
    • A61G15/005—Chairs specially adapted for gynaecological purposes, e.g. obstetrical chairs
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person

Definitions

  • the invention relates to an examination chair for gynecological and urological Investigations, comprising a chair part with a seat and a Backrest, a support column with a height adjustable by an actuator Column head on which the chair part is arranged and means for the seat part and Adjust the backrest relative to the support column, with the backrest on the column head mounted and pivotable about a horizontal first pivot axis a swivel drive is pivotable and the seat on the backrest about a second pivot axis parallel to the first pivot axis is pivotally mounted.
  • Such an examination chair is known from DE-U-94 10 779.
  • DE 25 08 034 C2 is an examination chair for gynecological and urological Studies known in which the chair part with the backrest on a support frame is pivotally pivoted about a stationary tilt axis and can be pivoted as a whole using an actuating cylinder.
  • the actuating cylinder engages on the one hand on the support frame and on the other hand directly on the Back of the chair section.
  • the seat remains in its relative position to the backrest unchanged, but can be in an approximately horizontal position the backrest can be folded down.
  • a simultaneous adjustment the backrest and seat are relative to the support column and relative to each other not provided.
  • the invention has for its object an examination chair of the beginning Specify the type mentioned, with relatively little technical effort Backrest and seat relative to the support column and relative to each other can be adjusted synchronously.
  • the seat with the Backrest also over one of the two swivel axes, a fixed seat Joint axis and a free joint axis comprising a quadrilateral joint and that the connecting the first pivot axis with the free hinge axis Leg of the four-bar linkage a first lever arm of a two-armed control lever is and with a column-fixed stop to determine a basic position the seat cooperates while the second lever arm of the control lever to adjust the seat to interact with a backrest-fixed stop is determined.
  • the basic position of the seat is, for example, a horizontal sitting position. Relative to this basic position of the seat, the backrest can be in one certain angular range can be adjusted, the seat due to the connection with the backrest horizontally through the four-bar linkage in its basic position is moved. Only when the backrest is over a certain one Is tilted backwards, the backrest-fixed stop occurs with the second lever arm of the control lever in contact and pivots over the The control lever and the four-bar linkage synchronize the seat with the backrest.
  • the pivoting movement the control lever from its position corresponding to the basic position of the seat Position is limited by a second column-fixed stop and that the backrest-fixed stop can be deflected against spring force. This gives the opportunity the seat in a certain pivoted position by the fixed column Hold the stop while the backrest extends beyond this position can be pivoted by deflecting the backrest-fixed stop, so that seat part and backrest, for example, brought into an almost extended position can be.
  • the swivel drive is preferably a linear drive, for example a spindle drive, one end with the column head and the other end with the backrest is articulated.
  • the examination chair shown in FIG. 1 comprises a foot part 10 and a rigidly connected to this support column 12, one generally designated 14 Part of the chair.
  • the support column has a rigidly connected to the foot part 10 Guide body 16 and a telescopically guided column head 18.
  • Guide part 16 and column head 18 can be cylindrical, for example his.
  • the column head 18 can be relative to the guide part 16 by a first Spindle drive 20 can be adjusted up and down in the direction of the double arrow A.
  • the chair part 14 has a seat 22 and a backrest 24.
  • the backrest 24 is on a bearing head 26 rigidly connected to the column head 18 a horizontal pivot axis 28 pivotally mounted and can by a the spindle drive 30 forming the pivot drive is pivoted about the axis 28 become.
  • the spindle drive 30 is on the one hand with a bracket 32 with the column head 18 and on the other hand articulated with a lever 34 fixed to the backrest connected.
  • the backrest 24 At the lower end of the backrest 24 is about a parallel to the pivot axis 28 second pivot axis 36 hinged the seat part 22.
  • the seat part 22 is also with the backrest 24 is connected via a four-bar link 38, which is a further seat-fixed Hinge axis 40 and a free hinge axis 42 includes the Joint axis 40 via a lever 44 and with the first pivot axis 28 via a lever arm 46 is connected.
  • the lever arm 46 is part of a two-armed control lever, generally designated 48, the other lever arm 50 at an angle of less than 90 ° the first lever arm 46 is directed and in turn in the form of an angle lever is formed, the free leg 52 at least approximately parallel to the first lever arm 46 is directed.
  • the lever arm 46 of the control lever 48 is located on a first column head Stop 54 on.
  • the second lever arm 50 has at its apex an abutment surface 56 which is fixed to a second column head Stop 58 is determined.
  • the free end of the lever leg 52 is for Interaction with a stop 60 is determined, which is formed by a roller and is arranged at the free end of a lever arm of an angle lever 62 is which is pivotally mounted about an axis 64 on the backrest 14 and by a compression spring 66 in the position shown in Figure 1 in the counterclockwise direction is biased.
  • the compression spring 66 is supported on a backrest-fixed Abutment 68 from.
  • FIG. 2 shows the examination chair in a position in which the backrest 14 compared to the position according to FIG. 1 by shortening the linear drive 30 has been pivoted clockwise about axis 28 and until the End of the lever arm 52 is pushed against the backrest-fixed stop 60.
  • the seat 22 maintains its horizontal position, because of the articulated connection between the seat surface 22 and the backrest 24 there is no possibility of pivoting the seat surface 22.
  • the lever arm 46 resting against the stop 54 of the column head 18 the quadrilateral 38 fixes the seat 22 in the horizontal position, whereby the seat surface 22 is horizontal only in FIG. 1 via the four-bar linkage 38 is shifted to the left.
  • the backrest 24 is further shortened by the linear drive 30 the position shown in Figure 2 pivoted clockwise, so the backrest-fixed stop 60 presses on the free end of the lever arm 52 of the control lever 48 and pivots it about the axis 28, so that now Backrest 24 and seat 22 synchronously without changing their relative position be pivoted about the axis 28 until the position in Figure 3 is reached.
  • the surface 56 of the control lever 48 strikes the second column head-fixed Stop 58 on, whereby a further pivoting movement of the Control lever 48 and thus the seat 22 prevented clockwise becomes.
  • FIG. 5 again shows the sections of those described above Adjustment movement, with those plotted on the abscissa and ordinate Angle values for the swivel angle of the backrest and seat are of course freely selectable.
  • a swiveling movement of the backrest out of the Angular position 51 ° ( Figure 1) in the angular position 30 ° ( Figure 2) remains the seat 22 horizontal. It is only moved in the horizontal direction.
  • the seat 22 is also the same angular amount (a total of 25 °) pivoted until the position shown in FIG. 3 is reached is.
  • the seat surface 22 retains its position Angular position at.
  • a major advantage of the solution according to the invention is not only that with the help of a single actuator seat and backrest together in different positions can be adjusted, but also the seat 22 can always be folded up freely in all positions if it is collides with an obstacle by lowering the column head 18. This prevents that people when lowering the column head 18 between the floor or the foot part 10 and the seat 22 can be clamped.

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Gynecology & Obstetrics (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
  • Crushing And Grinding (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Eye Examination Apparatus (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

An examination chair for gynecological and urological examinations, comprising a chair part (14) with a seat (22) and a backrest (24), and a support column (12) that has a column head which can be adjusted heightwise through an actuator (20), on which the chair section is mounted, the backrest (24) being pivotally mounted on the column head (18) for movement about a horizontal pivot axis (28) and being so pivotable by a drive mechanism (30), the seat (22) being pivotally mounted on the backrest (24) for movement about a second pivot axis (36) parallel to the axis (28) and also connected to the backrest (24) by a four-corner linkage (38) that includes both pivot axes (28,36), a link axis (40) fixed to the seat, and a free link axis (42), the link (46) of the linkage (38) connecting the first pivot axis (28) to the free axis (42) being a first lever arm of a two-armed control lever (48) and cooperating with a stop (54) secured to the column to determine the fundamental position of the seat (22), the second lever arm (50) of the control lever (48) being designed to cooperate with a stop (60) on the backrest.

Description

Die Erfindung betrifft einen Untersuchungsstuhl für gynäkologische und urologische Untersuchungen, umfassend einen Stuhlteil mit einer Sitzfläche und einer Rückenlehne, eine Stützsäule mit einem durch einen Stellantrieb höhenverstellbaren Säulenkopf, an dem der Stuhlteil angeordnet ist, und Mittel, um Sitzteil und Rückenlehne relativ zur Stützsäule zu verstellen, wobei die Rückenlehne am Säulenkopf um eine horizontale erste Schwenkachse schwenkbar gelagert und durch einen Schwenkantrieb verschwenkbar ist und wobei die Sitzfläche an der Rückenlehne um eine zur ersten Schwenkachse parallele zweite Schwenkachse schwenkbar gelagert ist.The invention relates to an examination chair for gynecological and urological Investigations, comprising a chair part with a seat and a Backrest, a support column with a height adjustable by an actuator Column head on which the chair part is arranged and means for the seat part and Adjust the backrest relative to the support column, with the backrest on the column head mounted and pivotable about a horizontal first pivot axis a swivel drive is pivotable and the seat on the backrest about a second pivot axis parallel to the first pivot axis is pivotally mounted.

Ein solcher Untersuchungsstuhl ist aus der DE-U-94 10 779 bekannt.Such an examination chair is known from DE-U-94 10 779.

Aus der DE 25 08 034 C2 ist ein Untersuchungsstuhl für gynäkologische und urologische Untersuchungen bekannt, bei dem der Stuhlteil mit der Rückenlehne an einem Stützgestell um eine ortsfeste Kippachse verschwenkbar angelenkt ist und mit Hilfe eines Stellzylinders als Ganzes verschwenkt werden kann. Der Stellzylinder greift dabei einerseits am Stützgestell und andererseits unmittelbar an der Rückenlehne des Stuhlteils an. Die Sitzfläche bleibt dabei in ihrer Stellung relativ zur Rückenlehne unverändert, kann jedoch bei annähernd horizontaler Stellung der Rückenlehne nach unten abgeklappt werden. Eine gleichzeitige Verstellung der Rückenlehne und Sitzfläche relativ zur Stützsäule und relativ zueinander ist nicht vorgesehen.DE 25 08 034 C2 is an examination chair for gynecological and urological Studies known in which the chair part with the backrest on a support frame is pivotally pivoted about a stationary tilt axis and can be pivoted as a whole using an actuating cylinder. The actuating cylinder engages on the one hand on the support frame and on the other hand directly on the Back of the chair section. The seat remains in its relative position to the backrest unchanged, but can be in an approximately horizontal position the backrest can be folded down. A simultaneous adjustment the backrest and seat are relative to the support column and relative to each other not provided.

Bei Operationstischen ist es bekannt, die einzelnen Abschnitte der Patientenliegefläche jeweils über eigene Antriebe relativ zueinander zu verstellen. Dies erfordert einen relativ hohen technischen Aufwand. In the case of operating tables, it is known for the individual sections of the patient bed to be adjusted relative to each other via their own drives. This requires a relatively high technical effort.

Der Erfindung liegt die Aufgabe zugrunde, einen Untersuchungsstuhl der eingangs genannten Art anzugeben, bei dem mit relativ geringem technischen Aufwand Rückenlehne und Sitzfläche relativ zur Stützsäule und relativ zueinander synchron verstellt werden können.The invention has for its object an examination chair of the beginning Specify the type mentioned, with relatively little technical effort Backrest and seat relative to the support column and relative to each other can be adjusted synchronously.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Sitzfläche mit der Rückenlehne femer über ein die beiden Schwenkachsen, eine sitzflächenfeste Gelenkachse und eine freie Gelenkachse umfassendes Gelenkviereck verbunden ist und daß der die erste Schwenkachse mit der freien Gelenkachse verbindende Schenkel des Gelenkvierecks ein erster Hebelarm eines zweiarmigen Steuerhebels ist und mit einem säulenfesten Anschlag zur Festlegung einer Grundstellung der Sitzfläche zusammenwirkt, während der zweite Hebelarm des Steuerhebels zur Verstellung der Sitzfläche zum Zusammenwirken mit einem lehnenfesten Anschlag bestimmt ist.This object is achieved in that the seat with the Backrest also over one of the two swivel axes, a fixed seat Joint axis and a free joint axis comprising a quadrilateral joint and that the connecting the first pivot axis with the free hinge axis Leg of the four-bar linkage a first lever arm of a two-armed control lever is and with a column-fixed stop to determine a basic position the seat cooperates while the second lever arm of the control lever to adjust the seat to interact with a backrest-fixed stop is determined.

Die Grundstellung der Sitzfläche ist beispielsweise eine horizontale Sitzposition. Relativ zu dieser Grundstellung der Sitzfläche kann die Rückenlehne in einem gewissen Winkelbereich verstellt werden, wobei die Sitzfläche aufgrund der Verbindung mit der Rückenlehne durch das Gelenkviereck in ihrer Grundstellung horizontal verschoben wird. Erst wenn die Rückenlehne über einen bestimmten Winkel hinaus nach rückwärts gekippt wird, tritt der lehnenfeste Anschlag mit dem zweiten Hebelarm des Steuerhebels in Berührung und verschwenkt über den Steuerhebel und das Gelenkviereck die Sitzfläche synchron mit der Rückenlehne.The basic position of the seat is, for example, a horizontal sitting position. Relative to this basic position of the seat, the backrest can be in one certain angular range can be adjusted, the seat due to the connection with the backrest horizontally through the four-bar linkage in its basic position is moved. Only when the backrest is over a certain one Is tilted backwards, the backrest-fixed stop occurs with the second lever arm of the control lever in contact and pivots over the The control lever and the four-bar linkage synchronize the seat with the backrest.

Bei einer bevorzugten Ausführungsform ist vorgesehen, daß die Schwenkbewegung des Steuerhebels aus seiner der Grundstellung der Sitzfläche entsprechenden Stellung durch einen zweiten säulenfesten Anschlag begrenzt ist und daß der lehnenfeste Anschlag gegen Federkraft auslenkbar ist. Dies gibt die Möglichkeit, die Sitzfläche in einer bestimmten verschwenkten Stellung durch den säulenfesten Anschlag festzuhalten, während die Rückenlehne über diese Stellung hinaus durch das Auslenken des lehnenfesten Anschlages verschwenkt werden kann, so daß Sitzteil und Rückenlehne beispielsweise in eine fast gestreckte Lage gebracht werden können. In a preferred embodiment it is provided that the pivoting movement the control lever from its position corresponding to the basic position of the seat Position is limited by a second column-fixed stop and that the backrest-fixed stop can be deflected against spring force. This gives the opportunity the seat in a certain pivoted position by the fixed column Hold the stop while the backrest extends beyond this position can be pivoted by deflecting the backrest-fixed stop, so that seat part and backrest, for example, brought into an almost extended position can be.

Der Schwenkantrieb ist vorzugsweise ein Linearantrieb, beispielsweise ein Spindelantrieb, dessen eines Ende mit dem Säulenkopf und dessen anderes Ende mit der Rückenlehne gelenkig verbunden ist.The swivel drive is preferably a linear drive, for example a spindle drive, one end with the column head and the other end with the backrest is articulated.

Auf diese Weise lassen sich mit einem einzigen Schwenkantrieb Sitzfläche und Rückenlehne in verschiedene Stellungen relativ zur Stützsäule und relativ zueinander verstellen.In this way, the seat surface and Backrest in different positions relative to the support column and relative to each other adjust.

Weiterer Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung, welche in Verbindung mit den beigefügten Zeichnungen die Erfindung an Hand eines Ausführungsbeispieles erläutert. Es zeigen:

Figur 1
eine schematische Seitenansicht eines erfindungsgemäßen Untersuchungsstuhles in einer ersten Stellung von Sitzteil und Rückenlehne,
Figur 2
eine der Figur 1 entsprechende Ansicht in einer zweiten Stellung von Sitzteil und Rückenlehne,
Figur 3
eine der Figur 1 entsprechende Ansicht in einer dritten Stellung von Sitzteil und Rückenlehne,
Figur 4
eine der Figur 1 entsprechende Ansicht in einer vierten Stellung von Rückenlehne und Sitzteil, und
Figur 5
ein Diagramm zur Erläuterung der Bereiche, in denen entweder nur die Rückenlehne oder die Rückenlehne zusammen mit der Sitzfläche verschwenkt wird.
Further features and advantages of the invention will become apparent from the following description, which explains the invention using an exemplary embodiment in conjunction with the accompanying drawings. Show it:
Figure 1
2 shows a schematic side view of an examination chair according to the invention in a first position of the seat part and backrest,
Figure 2
2 shows a view corresponding to FIG. 1 in a second position of the seat part and backrest,
Figure 3
2 shows a view corresponding to FIG. 1 in a third position of the seat part and backrest,
Figure 4
a view corresponding to Figure 1 in a fourth position of the backrest and seat part, and
Figure 5
a diagram for explaining the areas in which either only the backrest or the backrest is pivoted together with the seat.

Der in der Figur 1 dargestellte Untersuchungsstuhl umfaßt ein Fußteil 10 und eine starr mit diesem verbundene Stützsäule 12, die einen allgemein mit 14 bezeichneten Stuhlteil trägt. Die Stützsäule hat einen starr mit dem Fußteil 10 verbundenen Führungskörper 16 und einen teleskopisch an diesem geführten Säulenkopf 18. Führungsteil 16 und Säulenkopf 18 können beispielsweise zylindrisch ausgebildet sein. Der Säulenkopf 18 kann relativ zum Führungsteil 16 durch einen ersten Spindeltrieb 20 in Richtung des Doppelpfeiles A auf und ab verstellt werden. The examination chair shown in FIG. 1 comprises a foot part 10 and a rigidly connected to this support column 12, one generally designated 14 Part of the chair. The support column has a rigidly connected to the foot part 10 Guide body 16 and a telescopically guided column head 18. Guide part 16 and column head 18 can be cylindrical, for example his. The column head 18 can be relative to the guide part 16 by a first Spindle drive 20 can be adjusted up and down in the direction of the double arrow A.

Der Stuhlteil 14 hat eine Sitzfläche 22 und eine Rückenlehne 24. Die Rückenlehne 24 ist an einem mit dem Säulenkopf 18 starr verbundenen Lagerkopf 26 um eine horizontale Schwenkachse 28 schwenkbar gelagert und kann durch einen den Schwenkantrieb bildenden Spindeltrieb 30 um die Achse 28 verschwenkt werden. Der Spindeitrieb 30 ist über eine Halterung 32 einerseits mit dem Säulenkopf 18 und andererseits mit einem rückenlehnenfesten Hebel 34 jeweils gelenkig verbunden.The chair part 14 has a seat 22 and a backrest 24. The backrest 24 is on a bearing head 26 rigidly connected to the column head 18 a horizontal pivot axis 28 pivotally mounted and can by a the spindle drive 30 forming the pivot drive is pivoted about the axis 28 become. The spindle drive 30 is on the one hand with a bracket 32 with the column head 18 and on the other hand articulated with a lever 34 fixed to the backrest connected.

Am unteren Ende der Rückenlehne 24 ist um eine zur Schwenkachse 28 parallele zweite Schwenkachse 36 das Sitzteil 22 angelenkt. Das Sitzteil 22 ist ferner mit der Rückenlehne 24 über ein Gelenkviereck 38 verbunden, das eine weitere sitzflächenfeste Gelenkachse 40 und eine freie Gelenkachse 42 umfaßt, die mit der Gelenkachse 40 über einen Hebel 44 und mit der ersten Schwenkachse 28 über einen Hebelarm 46 verbunden ist.At the lower end of the backrest 24 is about a parallel to the pivot axis 28 second pivot axis 36 hinged the seat part 22. The seat part 22 is also with the backrest 24 is connected via a four-bar link 38, which is a further seat-fixed Hinge axis 40 and a free hinge axis 42 includes the Joint axis 40 via a lever 44 and with the first pivot axis 28 via a lever arm 46 is connected.

Der Hebelarm 46 ist Teil eines allgemein mit 48 bezeichneten zweiarmigen Steuerhebels, dessen anderer Hebelarm 50 in einem Winkel von weniger als 90° zu dem ersten Hebelarm 46 gerichtet ist und seinerseits in Form eines Winkelhebels ausgebildet ist, dessen freier Schenkel 52 zumindest annähernd parallel zu dem ersten Hebelarm 46 gerichtet ist.The lever arm 46 is part of a two-armed control lever, generally designated 48, the other lever arm 50 at an angle of less than 90 ° the first lever arm 46 is directed and in turn in the form of an angle lever is formed, the free leg 52 at least approximately parallel to the first lever arm 46 is directed.

In der Figur 1 liegt der Hebelarm 46 des Steuerhebels 48 an einem ersten säulenkopffesten Anschlag 54 an. Der zweite Hebelarm 50 hat an seinem Winkelscheitel eine Anschlagfläche 56, die zur Anlage an einem zweiten säulenkopffesten Anschlag 58 bestimmt ist. Das freie Ende des Hebelschenkels 52 ist zum Zusammenwirken mit einem Anschlag 60 bestimmt, der von einer Rolle gebildet ist und an dem freien Ende eines Hebelarmes eines Winkelhebels 62 angeordnet ist, der um eine Achse 64 an der Rückenlehne 14 schwenkbar gelagert ist und durch eine Druckfeder 66 in die in der Figur 1 dargestellte Stellung im Gegenuhrzeigersinn vorgespannt wird. Die Druckfeder 66 stützt sich dabei an einem lehnenfesten Widerlager 68 ab.In Figure 1, the lever arm 46 of the control lever 48 is located on a first column head Stop 54 on. The second lever arm 50 has at its apex an abutment surface 56 which is fixed to a second column head Stop 58 is determined. The free end of the lever leg 52 is for Interaction with a stop 60 is determined, which is formed by a roller and is arranged at the free end of a lever arm of an angle lever 62 is which is pivotally mounted about an axis 64 on the backrest 14 and by a compression spring 66 in the position shown in Figure 1 in the counterclockwise direction is biased. The compression spring 66 is supported on a backrest-fixed Abutment 68 from.

An Hand der Figuren 2 bis 5 soll nun im folgenden die Kinematik der Verstellung von Sitzfläche und Rückenlehne des soweit beschriebenen Untersuchungsstuhles erläutert werden. The kinematics of the adjustment will now be described below with reference to FIGS of the seat and backrest of the examination chair described so far are explained.

Figur 2 zeigt den Untersuchungsstuhl in einer Stellung, in der die Rückenlehne 14 gegenüber der Stellung gemäß Figur 1 durch Verkürzen des Linearantriebes 30 im Uhrzeigersinn um die Achse 28 verschwenkt wurde und zwar soweit, bis das Ende des Hebelschenkels 52 an dem lehnenfesten Anschlag 60 angestoßen ist. Bei der Bewegung der Rückenlehne aus der Stellung gemäß Figur 1 in die Stellung gemäß Figur 2 behält die Sitzfläche 22 ihre horizontale Stellung bei, da aufgrund der gelenkigen Verbindung zwischen Sitzfläche 22 und Rückenlehne 24 keine Möglichkeit besteht, die Sitzfläche 22 mit zu verschwenken. Andererseits hält der an dem Anschlag 54 des Säulenkopfes 18 anliegende Hebelarm 46 über das Gelenkviereck 38 die Sitzfläche 22 in der horizontalen Stellung fest, wobei die Sitzfläche 22 lediglich über das Gelenkviereck 38 horizontal in der Figur 1 nach links verschoben wird.FIG. 2 shows the examination chair in a position in which the backrest 14 compared to the position according to FIG. 1 by shortening the linear drive 30 has been pivoted clockwise about axis 28 and until the End of the lever arm 52 is pushed against the backrest-fixed stop 60. When moving the backrest from the position shown in Figure 1 in the position according to Figure 2, the seat 22 maintains its horizontal position, because of the articulated connection between the seat surface 22 and the backrest 24 there is no possibility of pivoting the seat surface 22. on the other hand holds the lever arm 46 resting against the stop 54 of the column head 18 the quadrilateral 38 fixes the seat 22 in the horizontal position, whereby the seat surface 22 is horizontal only in FIG. 1 via the four-bar linkage 38 is shifted to the left.

Wird die Rückenlehne 24 durch weiteres Verkürzen des Linearantriebes 30 über die in Figur 2 dargestellte Stellung hinaus im Uhrzeigersinn verschwenkt, so drückt der rückenlehnenfeste Anschlag 60 auf das freie Ende des Hebelschenkels 52 des Steuerhebels 48 und schwenkt diesen um die Achse 28, so daß nun Rückenlehne 24 und Sitzfläche 22 ohne Änderung ihrer relativen Lage synchron um die Achse 28 verschwenkt werden, bis die Stellung in Figur 3 erreicht ist. In dieser Stellung schlägt die Fläche 56 des Steuerhebels 48 an dem zweiten säulenkopffesten Anschlag 58 an, wodurch eine weiter Schwenkbewegung des Steuerhebels 48 und damit auch der Sitzfläche 22 im Uhrzeigersinn verhindert wird.The backrest 24 is further shortened by the linear drive 30 the position shown in Figure 2 pivoted clockwise, so the backrest-fixed stop 60 presses on the free end of the lever arm 52 of the control lever 48 and pivots it about the axis 28, so that now Backrest 24 and seat 22 synchronously without changing their relative position be pivoted about the axis 28 until the position in Figure 3 is reached. In in this position, the surface 56 of the control lever 48 strikes the second column head-fixed Stop 58 on, whereby a further pivoting movement of the Control lever 48 and thus the seat 22 prevented clockwise becomes.

Aufgrund der federnden Lagerung des lehnenfesten Anschlages 60 kann jedoch die Rückenlehne 24 allein weiter im Uhrzeigersinn in die in der Figur 4 dargestellte Stellung verschwenkt werden, in der Rückenlehne 24 und Sitzfläche 22 zumindest annähernd in einer Ebene liegen. Dabei wird die Druckfeder 66 zusammengepreßt. Die Stellvorgänge im Gegenuhrzeigersinn laufen in der umgekehrten Reihenfolge ab, bis Rückenlehne und Sitzfläche wieder die in der Figur 1 dargestellte Stellung erreicht haben, aus der heraus die Rückenlehne auch noch weiter im Gegenuhrzeigersinn verschwenkt werden kann, bis sie eine aufrechte Stellung erreicht hat.However, due to the resilient mounting of the backrest-fixed stop 60 the backrest 24 alone further clockwise into that shown in Figure 4 Position swiveled in the backrest 24 and seat 22nd are at least approximately in one plane. The compression spring 66 is pressed together. The counterclockwise actuations run in the opposite direction Order from until the backrest and seat are again as shown in Figure 1 have reached the position shown, from the backrest also can be pivoted further counterclockwise until it is upright Has reached position.

Das Diagramm der Figur 5 zeigt noch einmal die Abschnitte der vorstehend beschriebenen Stellbewegung, wobei die auf der Abszisse und der Ordinate aufgetragenen Winkelwerte für die Schwenkwinkel von Rückenlehne und Sitzfläche natürlich frei wählbar sind. Für eine Schwenkbewegung der Rückenlehne aus der Winkelstellung 51° (Figur 1) in die Winkelstellung 30° (Figur 2) bleibt die Sitzfläche 22 horizontal. Sie wird lediglich in horizontaler Richtung verschoben. Für eine weitere Schwenkbewegung der Rückenlehne 24 aus der Winkelstellung 30° in die Winkelstellung 5° (Figur 3) wird auch die Sitzfläche 22 um denselben Winkelbetrag (insgesamt 25°) verschwenkt, bis die Stellung gemäß Figur 3 erreicht ist. Bei der weiteren Schwenkbewegung der Rückenlehne aus der Winkelstellung 5° (Figur 3) in die Winkelstellung -11 ° (Figur 4) behält die Sitzfläche 22 wieder ihre Winkelstellung bei.The diagram in FIG. 5 again shows the sections of those described above Adjustment movement, with those plotted on the abscissa and ordinate Angle values for the swivel angle of the backrest and seat are of course freely selectable. For a swiveling movement of the backrest out of the Angular position 51 ° (Figure 1) in the angular position 30 ° (Figure 2) remains the seat 22 horizontal. It is only moved in the horizontal direction. For one further pivoting movement of the backrest 24 from the angular position 30 ° in the Angular position 5 ° (Figure 3), the seat 22 is also the same angular amount (a total of 25 °) pivoted until the position shown in FIG. 3 is reached is. With the further pivoting movement of the backrest from the angular position 5 ° (FIG. 3) into the angular position -11 ° (FIG. 4), the seat surface 22 retains its position Angular position at.

Ein wesentlicher Vorteil der erfindungsgemäßen Lösung liegt nicht nur darin, daß mit Hilfe eines einzigen Stellantriebes Sitzfläche und Rückenlehne gemeinsam in verschiedene Stellungen verstellt werden können, sondern daß auch die Sitzfläche 22 in allen Stellungen stets frei nach oben geklappt werden kann, wenn sie durch Absenken des Säulenkopfes 18 gegen ein Hindernis stößt. Damit wird verhindert, daß Personen beim Absenken des Säulenkopfes 18 zwischen dem Fußboden bzw. dem Fußteil 10 und der Sitzfläche 22 eingeklemmt werden können.A major advantage of the solution according to the invention is not only that with the help of a single actuator seat and backrest together in different positions can be adjusted, but also the seat 22 can always be folded up freely in all positions if it is collides with an obstacle by lowering the column head 18. This prevents that people when lowering the column head 18 between the floor or the foot part 10 and the seat 22 can be clamped.

Claims (3)

  1. An examination chair, especially for gynaecological and urological examinations, including a chair part (14) with a seat (22) and a backrest (24, a support column (12) with a column head (18) height adjustable by an adjusting drive (20), on which column head the chair part (14) is arranged, and means (30) being provided for adjusting the seat (22) and the backrest (24) relative to the supporting column (12), with the backrest (24) being pivotally supported on the column head (18) for movement about a horizontal first pivot axis (28) and being pivotal by a pivot drive (30) and with the seat (22) being supported on the backrest (24) for pivotal movement about a second pivot axis (36) parallel to the first pivot axis (28) and with the examination chair being characterized in that the seat (22) is further connected with the backrest (24) through a four-bar linkage (38) including the two pivot axes (28, 36), a linkage axis (40) fixed to the seat and a free linkage axis (42), and in that the link (46) of the four-bar linkage (38) which connects the first pivot axis (38) with the free linkage axis (42) is a first lever arm of a two-arm control lever (48) and cooperates with a stop (54) fixed to the support column for establishing a fundamental position of the seat (22), with the second lever arm (50) of the control lever (48) for adjusting the seat (22) being designed for cooperation with a stop (60) on the backrest.
  2. An examination chair according to claim 1, characterized in that the pivotal movement of the control lever (48) out of its position which corresponds to the fundamental position of the seat (22) is limited by a second stop (58) fixed to the column head and that the stop (60) on the backrest is deflectable against a spring force.
  3. An examination chair according to claim 1 or 2, characterized in that the pivot drive (30) is a linear drive having one end connected to the column head (18) and another end pivotally connected with the backrest (24).
EP99964488A 1998-11-18 1999-11-17 Examination chair Expired - Lifetime EP1131034B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19853271A DE19853271A1 (en) 1998-11-18 1998-11-18 Examination chair
DE19853271 1998-11-18
PCT/EP1999/008814 WO2000028938A1 (en) 1998-11-18 1999-11-17 Examination chair

Publications (2)

Publication Number Publication Date
EP1131034A1 EP1131034A1 (en) 2001-09-12
EP1131034B1 true EP1131034B1 (en) 2004-11-10

Family

ID=7888272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99964488A Expired - Lifetime EP1131034B1 (en) 1998-11-18 1999-11-17 Examination chair

Country Status (11)

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US (1) US6672668B1 (en)
EP (1) EP1131034B1 (en)
JP (1) JP2002529198A (en)
KR (1) KR100572096B1 (en)
AT (1) ATE281814T1 (en)
CZ (1) CZ298482B6 (en)
DE (2) DE19853271A1 (en)
ES (1) ES2233093T3 (en)
PL (1) PL192666B1 (en)
TW (1) TW473385B (en)
WO (1) WO2000028938A1 (en)

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US7063383B2 (en) * 2004-10-18 2006-06-20 Shang Neng Wu Sliding assembly of dynamic mechanism of a massage chair
DE102005040402B3 (en) 2005-08-26 2007-05-03 Hanning Elektro-Werke Gmbh & Co. Kg Pivoting drive for a arranged on a Untergstell structure, preferably for an operating table or a dentist chair
CN101700194B (en) * 2009-11-26 2013-05-01 谭建铭 Digitization intelligent diagnosis and treatment system
US9603453B2 (en) * 2010-12-29 2017-03-28 Ultra-Mek, Inc. Reclining chair with tilting action to provide heart-rest position
DE102012102699B4 (en) * 2012-03-29 2013-10-17 medica - Medizintechnik GmbH Aufstehtrainer
CN103054648B (en) * 2013-01-04 2017-10-31 河南科技大学第一附属医院 A kind of gynaecological examination chair
US20140306495A1 (en) * 2013-04-11 2014-10-16 University Health Network Patient carrier
DE102015109078B4 (en) * 2015-06-09 2019-01-03 MAQUET GmbH operating table
NO339533B1 (en) * 2015-09-01 2016-12-27 Norsap As Operator chair
CN108888454A (en) * 2018-04-28 2018-11-27 安徽工程大学 A kind of gynaecology's rotatable monitor station of angle
CN112076055B (en) * 2020-09-27 2022-06-21 王守云 Medical foldable and unfoldable gynecological medicine feeding chair

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US6237172B1 (en) * 1998-10-01 2001-05-29 Morgan Medesign, Inc. Patient support table

Also Published As

Publication number Publication date
EP1131034A1 (en) 2001-09-12
ES2233093T3 (en) 2005-06-01
CZ298482B6 (en) 2007-10-17
PL347660A1 (en) 2002-04-22
ATE281814T1 (en) 2004-11-15
CZ20011687A3 (en) 2002-01-16
US6672668B1 (en) 2004-01-06
DE59911060D1 (en) 2004-12-16
KR20010075704A (en) 2001-08-09
WO2000028938A1 (en) 2000-05-25
JP2002529198A (en) 2002-09-10
TW473385B (en) 2002-01-21
DE19853271A1 (en) 2000-05-25
PL192666B1 (en) 2006-11-30
KR100572096B1 (en) 2006-04-17

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