EP1743614B1 - Bath lift - Google Patents

Bath lift Download PDF

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Publication number
EP1743614B1
EP1743614B1 EP06116747A EP06116747A EP1743614B1 EP 1743614 B1 EP1743614 B1 EP 1743614B1 EP 06116747 A EP06116747 A EP 06116747A EP 06116747 A EP06116747 A EP 06116747A EP 1743614 B1 EP1743614 B1 EP 1743614B1
Authority
EP
European Patent Office
Prior art keywords
backrest
seat plate
locking
lifting tube
bath tub
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.)
Not-in-force
Application number
EP06116747A
Other languages
German (de)
French (fr)
Other versions
EP1743614A1 (en
Inventor
Harald Arnold
Martin Wirth
Robert Kempter
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.)
Aquatec Operations GmbH
Original Assignee
Aquatec 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
Application filed by Aquatec GmbH filed Critical Aquatec GmbH
Publication of EP1743614A1 publication Critical patent/EP1743614A1/en
Application granted granted Critical
Publication of EP1743614B1 publication Critical patent/EP1743614B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1001—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications
    • A61G7/1003—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications mounted on or in combination with a bath-tub
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1019—Vertical extending columns or mechanisms
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049—Attachment, suspending or supporting means for patients
    • A61G7/1059—Seats
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1073—Parts, details or accessories
    • A61G7/1082—Rests specially adapted for
    • A61G7/1088—Back

Definitions

  • Bathtub lifters of the type mentioned are used for example in nursing homes and hospitals to simplify the bathing or washing of the sick, the disabled or the elderly in bathtubs or the like.
  • a disadvantage of these known Badewannenliftem that often the backrest and the seat plate are not or only with some effort separable from each other. These bath tub lifters are therefore often completely transported or taken out of the bathtub with great physical effort.
  • the EP 0 853 936 A2 discloses a bathtub lifter for elderly or disabled with a floor frame for resting on a floor of a bathtub, a seat plate and a related backrest, a lifting device for height adjustment of the seat plate and the backrest between a lowermost and an uppermost end position, wherein the lifting device a comprises drive means mounted on the backrest, and having a telescoping lifting tube which can be actuated by the drive direction and having a spindle foot communicating with the lifting tube for supporting the base frame.
  • a provided in this known bath lifter locking release device by means of which the backrest and the seat plate coupled together above the lowest end position and the backrest and the seat plate are released from each other in the lowest end position, has securing means which must be operated manually. The separation of the backrest and seat plate thus requires not only a movement of the seat plate in the lowest position and a folding of the backrest forward, but also the manual operation of a separate securing means.
  • the invention is based on the object to design a bath lifter for the elderly or the disabled so that the removal or transporting a Badewannenlifters is possible without much effort.
  • the locking release device has at least one locking bolt for coupling the backrest and the seat plate.
  • At least one locking bolt is mounted on the backrest.
  • the at least one locking bolt between a release position and a locking position movable.
  • the release position the backrest and the seat plate are released from each other, while they are coupled together in the locked position on the other hand.
  • the corresponding states are achieved by the respective position of the locking bolt.
  • the seat plate has at least one locking recess for receiving the at least one locking bolt in its locking position. This configuration causes a secure connection between the seat plate and the backrest in the locking position of the locking bolt.
  • a compression spring is provided which engages the backrest and presses the at least one Arrener bolt on the lifting tube.
  • the at least one locking bolt is thus acted upon by a force that presses against the lifting tube. Complicated mechanisms are not required.
  • the spindle foot has at least one guide recess for cooperation with the at least one locking bolt in the lowest end position. As a result, a simple actuation or displacement of the locking bolt is achieved.
  • the lifting tube has a lifting tube jacket. It is advantageous if the guide recess has a sloping section extending obliquely downwards from the lifting tube jacket and a release section offset inwardly relative to the lifting tube jacket for releasing the backrest and the seat plate from one another. The inclined portion causes actuation of the locking bolt between its corresponding positions.
  • a bath tub lifter not shown as a whole in the figures comprises a floor frame 1 to be laid on a floor of a bath not shown, a seat plate 2 and a back rest 3 pivotally connected thereto.
  • the seat plate 2 provides a flat seating surface for a person to be bathed, while the backrest 3 offers a flat investment opportunity.
  • the bath lifter further comprises a controllable lifting device.
  • the lifting device comprises a telescopic lifting tube 4 and a drive device for actuating the lifting tube 4.
  • the lifting tube 4 is connected to the floor frame 1 and the backrest 3 in connection.
  • the floor frame 1 has a substantially rectangular basic shape. On the underside of the floor frame 1, d. H. on the opposite side in use as a bathtub floor, four feet 5 are provided. These are used for secure positioning of the floor frame 1 in a bathtub and for supporting the floor frame 1 with respect to a bathtub floor.
  • two spaced-apart bearing approach pairs 6 are provided, in which ends 7 of a scissors 8 are pivotally mounted. Other ends of the scissors 8 are hinged at the bottom of the seat plate 2. Between the bearing-approach pairs 6, a bearing device 9 is provided for supporting the lifting tube 4.
  • the drive device is designed as an electric motor and can be actuated by a corresponding control unit, for example, by a user of Badewannenlifters or a caregiver, the drive means is connected to the lifting tube 4 in torque transmitting Way in touch.
  • a corresponding control unit for example, by a user of Badewannenlifters or a caregiver
  • the drive means is connected to the lifting tube 4 in torque transmitting Way in touch.
  • an inner tube or inner tubes of the lifting tube 4 is extended or retracted. This extension or retraction movement is achieved by the drive device.
  • Each locking bolt 10 has a longitudinal center axis 11 and is axially movably mounted on the backrest 3.
  • corresponding bearing lugs 12 are integrally formed on the back of the backrest 3.
  • the bearing lugs 12 on the outer shape of the locking pin 10 matched closed openings, which pass through the locking bolts 10.
  • the locking bolts 10 are aligned with each other, but are spaced from each other. They are arranged horizontally extending and are approximately perpendicular to the lifting tube. 4
  • Each locking bolt 10 further has an inner end 13, the ends 13 of the two locking bolts 10 are in the in Fig. 1 shown position of the seat plate 2 and the backrest 3 on the outside of the lifting tube 4 at. They are facing each other. Furthermore, each locking bolt 10 has an outer end portion 14, which is annular or circular in cross section. The end portions 14 of the locking bolts 10 can be engaged with corresponding locking recesses in the seat plate 2 opposite each other. In the locking position of the locking bolt 10, the seat plate 2 and the backrest 3 are coupled together, that is, inextricably linked.
  • each locking pin 10 sits a helical compression spring 15 which is supported on a bearing neck 12 of the backrest 3.
  • This bearing approach 12 forms an abutment, so to speak, the coil spring 15 can also be supported at a different point of the backrest 3.
  • Each helical compression spring 15 is also applied to a power transmission ring 16 which is axially fixed on the corresponding locking pin 10. From the abutment forming bearing shoulder 12, each helical compression spring 15 extends inwardly in the direction of the lifting tube 4 to the respective power transmission ring 16.
  • the inner ends 13 have a planar contact surface 17.
  • the contact surface 17 may also be adapted to the outer shape of the lifting tube 4, d. H. it can also have a corresponding curvature.
  • a spindle foot 18 is connected. This communicates with the bearing device 9 of the floor frame 1 in detachable articulated connection and supports the lifting tube 4 from there.
  • the spindle root 18 has a symmetrical shape. It comprises two opposite guide recesses 19, which each extend downward. Each guide recess has a lower straight release portion 20 and an adjoining inclined portion 21.
  • the release sections 20 of the two guide recesses 19 extend parallel to one another and extend in the direction of the longitudinal center axis 22 of the lifting tube 4. They are opposite to the circular jacket of the lifting tube 4 inwards, ie, offset from each other.
  • the inclined sections 21 extend from the release sections 20 upwardly outward - ie away from each other - and end at the bottom of the jacket of the lifting tube 4. They are in the region of the lifting tube 4, where this has its largest diameter.
  • the width of the release and oblique sections 20, 21 corresponds approximately the width of the contact surfaces 17 of the locking bolt 10.
  • the guide recesses 19 are open to the outside and are bounded on one side by a guide wall 23.
  • the function of the bathtub lifter according to the invention will be described in more detail below.
  • the lifting tube 4 is switched on or extended by the actuatable drive means.
  • the seat plate 2 and the backrest 3 can be adjusted as desired in height, the scissors 8 causes a guide.
  • Fig. 1 are the seat plate 2 and the backrest 3 in a raised position, which lies between the lowermost and the uppermost end position, the seat plate 2 and the backrest 3 are therefore driven slightly upwards.
  • the locking bolts 10 rest with their contact surfaces 17 against the jacket of the lifting tube 4. This is achieved by the helical compression springs 15 which press the locking bolts 10 to the lifting tube 4.
  • the contact surfaces 17 In a height adjustment of the seat plate 2 and the backrest 3, the contact surfaces 17 always move along the lifting tube 4 on the jacket.
  • the locking bolts 10 engage in the locking recesses of the seat plate 2.
  • the locking bolts 10 When lowering the seat plate 2 and the backrest 3 in the lowest end position, the locking bolts 10 come into the area of the spindle base 18.
  • the contact surfaces 17 are now pressed by the helical compression springs 15 in the guide recesses 19 of the spindle base 18.
  • the helical compression springs 15 develop such a large compressive force that the contact surfaces 17 always follow the contours of the guide recesses 19.
  • the inclined sections 21 the represent a connection between the jacket of the lifting tube 4 and the release portions 20, the locking bolts 10 are gradually moved from the corresponding locking recesses in the seat plate 2 by the helical compression springs 15.
  • the locking bolts 10 are guided completely out of the locking recesses in the seat plate 2, so that in this position the backrest 3 can be removed from the seat plate 2.
  • the guide wall 23 ensures a secure guidance of the locking bolts 10 in the guide recesses 19.
  • the locking bolts 10 are guided by the inclined portions 21 in the reverse manner in the corresponding locking recesses in the seat plate 2, whereby a coupling of the seat plate 2 and the backrest 3 is reached.
  • the lock between the seat plate 2 and the backrest 3 is thus controlled by the normal movement of the seat plate 2 and backrest 3.
  • the locking is thereby automatically brought about when the seat plate 2 and the backrest 3 are moved from the lowest end position upwards. When lowering to the lowest end position, this lock is automatically canceled.

Abstract

The lifting seat for use by the elderly and handicapped in a bath has a seat plate (2) and back rest (3) which are mounted on a vertical telescopic tube (4). This has a spindle (18) at its base which raises the seat. The seat plate and back rest have a lock which is automatically released when the seat reaches its lowest position. An independent claim is included for the lock.

Description

Die Erfindung betrifft einen Badewannenlifter für Senioren oder Behinderte, umfassend

  • ein Bodengestell zur Auflage auf einem Boden einer Badewanne,
  • eine Sitzplatte und eine mit dieser in Verbindung stehende Rückenlehne,
  • eine Hubeinrichtung zur Höhenverstellung der Sitzplatte und der Rückenlehne zwischen einer untersten und einer obersten Endposition, wobei die Hubeinrichtung
    • -- eine an der Rückenlehne angebrachte Antriebseinrichtung aufweist, und
    • -- ein durch die Antriebseinrichtung betätigbares teleskopierbares Hubrohr aufweist, und
  • einen mit dem Hubrohr in Verbindung stehenden Spindelfuß zur Abstützung gegenüber dem Bodengestell.
The invention relates to a bathtub lifter for elderly or disabled, comprising
  • a floor frame to rest on a floor of a bathtub,
  • a seat panel and a backrest associated therewith,
  • a lifting device for height adjustment of the seat plate and the backrest between a lowermost and an uppermost end position, wherein the lifting device
    • - Has a mounted on the backrest drive means, and
    • - Has an actuatable by the drive means telescopic lifting tube, and
  • one associated with the lifting tube spindle foot for support against the bottom frame.

Badewannenlifter der eingangs genannten Art werden beispielsweise in Altenheimen und Krankenhäusern eingesetzt, um das Baden bzw. Waschen von Kranken, Behinderten oder älteren Personen in Badewannen oder dergleichen zu vereinfachen. Nachteilig bei diesen bekannten Badewannenliftem ist, dass oftmals die Rückenlehne und die Sitzplatte nicht bzw. nur mit einem gewissen Aufwand voneinander trennbar sind. Diese Badewannenlifter werden daher häufig unter großen körperlichen Anstrengungen komplett transportiert oder aus der Badewanne herausgenommen.Bathtub lifters of the type mentioned are used for example in nursing homes and hospitals to simplify the bathing or washing of the sick, the disabled or the elderly in bathtubs or the like. A disadvantage of these known Badewannenliftem that often the backrest and the seat plate are not or only with some effort separable from each other. These bath tub lifters are therefore often completely transported or taken out of the bathtub with great physical effort.

Die EP 0 853 936 A2 offenbart einen Badewannenlifter für Senioren oder Behinderte mit einem Bodengestell zur Auflage auf einem Boden einer Badewanne, einer Sitzplatte und einer mit dieser in Verbindung stehenden Rückenlehne, einer Hubeinrichtung zur Höhenverstellung der Sitzplatte und der Rückenlehne zwischen einer untersten und einer obersten Endposition, wobei die Hubeinrichtung eine an der Rückenlehne angebrachte Antriebseinrichtung aufweist, und ein durch die Antriebsrichtung betätigbares teleskopierbares Hubrohr aufweist und mit einem mit dem Hubrohr in Verbindung stehenden Spindelfuß zur Abstützung gegenüber dem Bodengestell. Eine bei diesem bekannten Badewannenlifter vorgesehene Arretier-Freigabe-Einrichtung, mittels derer die Rückenlehne und die Sitzplatte oberhalb der untersten Endposition miteinander gekoppelt und die Rückenlehne und die Sitzplatte in der untersten Endposition voneinander freigegeben sind, weist sicherungsmittel auf, welche manuell bedient werden müssen. Das Trennen der Rückenlehne und Sitzplatte erfordert somit nicht nur ein Verbringen der Sitzplatte in die unterste Stellung und ein Umlegen der Rückenlehne nach vorne, sondern zudem die manuelle Betätigung eines separaten Sicherungsmittels.The EP 0 853 936 A2 discloses a bathtub lifter for elderly or disabled with a floor frame for resting on a floor of a bathtub, a seat plate and a related backrest, a lifting device for height adjustment of the seat plate and the backrest between a lowermost and an uppermost end position, wherein the lifting device a comprises drive means mounted on the backrest, and having a telescoping lifting tube which can be actuated by the drive direction and having a spindle foot communicating with the lifting tube for supporting the base frame. A provided in this known bath lifter locking release device, by means of which the backrest and the seat plate coupled together above the lowest end position and the backrest and the seat plate are released from each other in the lowest end position, has securing means which must be operated manually. The separation of the backrest and seat plate thus requires not only a movement of the seat plate in the lowest position and a folding of the backrest forward, but also the manual operation of a separate securing means.

Hiervon ausgehend liegt der Erfindung die Aufgabe zu Grunde, einen Badewannenlifter für Senioren oder Behinderte derart auszugestalten, dass das Herausnehmen bzw. Transportieren eines Badewannenlifters ohne größere Anstrengungen möglich ist.On this basis, the invention is based on the object to design a bath lifter for the elderly or the disabled so that the removal or transporting a Badewannenlifters is possible without much effort.

Diese Aufgabe wird erfindungsgemäß gelöst durch einen Badewannenlifter gemäß Patentanspruch 1.This object is achieved by a bath tub lifter according to claim 1.

Wenn also die Sitzplatte und die Rückenlehne in die unterste Endposition ihres Verfahrwegs gefahren werden, werden die Rückenlehne und die Sitzplatte dort automatisch voneinander getrennt. Entsprechendes Werkzeug wie es einige aus dem Stand der Technik bekannten Badewannenlifter hierfür erfordern ist nicht notwendig. Die Rückenlehne mit der Antriebseinrichtung kann also separat entnommen werden.So when the seat plate and the backrest are moved to the lowest end position of their travel, the backrest and the seat plate are automatically separated from each other. Appropriate tool as some require known from the prior art Badewannenlifter this is not necessary. The backrest with the drive device can therefore be removed separately.

Die Arretier-Freigabe-Einrichtung weist mindestens einen Arretier-Bolzen zur Kopplung der Rückenlehne und der Sitzplatte auf. Durch diesen ist die Rückenlehne sicher an der Sitzplatte angebracht, wenn sich die Rückenlehne und die Sitzplatte oberhalb der untersten Endposition befinden.The locking release device has at least one locking bolt for coupling the backrest and the seat plate. By this, the backrest is securely attached to the seat plate, when the backrest and the seat plate are located above the lowest end position.

Es ist mindestens ein Arretier-Bolzen an der Rückenlehne gelagert. Hierdurch wird eine besonders einfache Ausgestaltung des Badewannenlifters erzielt.At least one locking bolt is mounted on the backrest. As a result, a particularly simple embodiment of the bathtub lifter is achieved.

Der mindestens eine Arretier-Bolzen zwischen einer Freigabe-Position und einer Arretier-Position beweglich. In der Freigabe-Position sind die Rückenlehne und die Sitzplatte voneinander freigegeben, während sie in der Arretier-Position dagegen miteinander gekoppelt sind. Die entsprechenden Zustände werden durch die jeweilige Stellung des Arretier-Bolzens erzielt.The at least one locking bolt between a release position and a locking position movable. In the release position, the backrest and the seat plate are released from each other, while they are coupled together in the locked position on the other hand. The corresponding states are achieved by the respective position of the locking bolt.

Vorzugsweise weist die Sitzplatte mindestens eine Arretier-Ausnehmung zur Aufnahme des mindestens einen Arretier-Bolzens in dessen Arretier-position auf. Diese Ausgestaltung bewirkt eine sichere Verbindung zwischen der Sitzplatte und der Rückenlehne in der Arretier-Position des Arretier-Bolzens.Preferably, the seat plate has at least one locking recess for receiving the at least one locking bolt in its locking position. This configuration causes a secure connection between the seat plate and the backrest in the locking position of the locking bolt.

Es ist von Vorteil, wenn eine Druckfeder vorgesehen ist, die an der Rückenlehne angreift und den mindestens einen Arrener-Bolzen an das Hubrohr drückt. Der mindestens eine Arretier-Bolzen wird also durch eine Kraft beaufschlagt, die diesen gegen das Hubrohr drückt. Komplizierte Mechanismen sind nicht erforderlich.It is advantageous if a compression spring is provided which engages the backrest and presses the at least one Arrener bolt on the lifting tube. The at least one locking bolt is thus acted upon by a force that presses against the lifting tube. Complicated mechanisms are not required.

Vorteilhafterweise weist der Spindelfuß mindestens eine Führungs-Ausnehmung zum Zusammenwirken mit dem mindestens einen Arretier-Bolzen in der untersten Endposition auf. Hierdurch wird eine einfache Betätigung bzw. Versetzung des Arretier-Bolzens erreicht.Advantageously, the spindle foot has at least one guide recess for cooperation with the at least one locking bolt in the lowest end position. As a result, a simple actuation or displacement of the locking bolt is achieved.

Gemäß einer vorteilhaften Ausgestaltung weist das Hubrohr einen Hubrohr-Mantel auf. Es ist vorteilhaft, wenn die Führungs-Ausnehmung einen von dem Hubrohr-Mantel schräg nach unten verlaufenden Schräg-Abschnitt und einen gegenüber dem Hubrohr-Mantel nach innen versetzten Freigabe-Abschnitt zur Freigabe der Rückenlehne und der Sitzplatte voneinander aufweist. Der Schrägabschnitt bewirkt eine Betätigung des Arretier-Bolzens zwischen seinen entsprechenden Positionen.According to an advantageous embodiment, the lifting tube has a lifting tube jacket. It is advantageous if the guide recess has a sloping section extending obliquely downwards from the lifting tube jacket and a release section offset inwardly relative to the lifting tube jacket for releasing the backrest and the seat plate from one another. The inclined portion causes actuation of the locking bolt between its corresponding positions.

Nachfolgend wird die Erfindung an Hand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung näher beschrieben. Dabei zeigen:

Fig. 1
eine Teilansicht eines erfindungsgemäßen Badewannenlifters von hinten, und
Fig. 2
eine seitliche Teilansicht des in Fig. 1 dargestellten Badewannenlifters.
The invention will be described with reference to a preferred embodiment in conjunction with the drawings. Showing:
Fig. 1
a partial view of a Badewannenlifters invention from the back, and
Fig. 2
a partial side view of the in Fig. 1 illustrated bath lifters.

Ein im Ganzen in den Figuren nicht dargestellter Badewannenlifter umfasst ein auf einen Boden einer nicht gezeigten Badewanne zu legendes Bodengestell 1, eine Sitzplatte 2 und eine mit dieser in schwenkbarer Verbindung stehende Rückenlehne 3. Die Sitzplatte 2 liefert eine ebene Sitzfläche für eine zu badende Person, während die Rückenlehne 3 eine ebene Anlagemöglichkeit bietet. Zur Höhenverstellung der Sitzplatte 2 und der Rückenlehne 3 weist der Badewannenlifter ferner eine steuerbare Hubeinrichtung auf. Die Hubeinrichtung umfasst ein teleskopierbares Hubrohr 4 und eine Antriebseinrichtung zur Betätigung des Hubrohrs 4. Das Hubrohr 4 steht mit dem Bodengestell 1 und der Rückenlehne 3 in Verbindung.A bath tub lifter not shown as a whole in the figures comprises a floor frame 1 to be laid on a floor of a bath not shown, a seat plate 2 and a back rest 3 pivotally connected thereto. The seat plate 2 provides a flat seating surface for a person to be bathed, while the backrest 3 offers a flat investment opportunity. For height adjustment of the seat plate 2 and the backrest 3, the bath lifter further comprises a controllable lifting device. The lifting device comprises a telescopic lifting tube 4 and a drive device for actuating the lifting tube 4. The lifting tube 4 is connected to the floor frame 1 and the backrest 3 in connection.

Das Bodengestell 1 weist eine im Wesentlichen rechteckige Grundform auf. Auf der Unterseite des Bodengestells 1, d. h. auf der im bestimmungsgemäßen Gebrauch einem Badewannen-Boden gegenüberliegenden Seite, sind vier Standfüße 5 vorgesehen. Diese dienen zur sicheren Positionierung des Bodengestells 1 in einer Badewanne und zur Abstützung des Bodengestells 1 gegenüber einem Badewannen-Boden. Im hinteren Bereich des Bodengestells 1 sind zwei voneinander beabstandete Lager-Ansatz-Paare 6 vorgesehen, in welchen Enden 7 einer Hubschere 8 schwenkbar gelagert sind. Weitere Enden der Hubschere 8 sind unten an der Sitzplatte 2 angelenkt. Zwischen den Lager-Ansatz-Paaren 6 ist eine Lager-Einrichtung 9 zur Lagerung des Hubrohrs 4 vorgesehen.The floor frame 1 has a substantially rectangular basic shape. On the underside of the floor frame 1, d. H. on the opposite side in use as a bathtub floor, four feet 5 are provided. These are used for secure positioning of the floor frame 1 in a bathtub and for supporting the floor frame 1 with respect to a bathtub floor. In the rear region of the floor frame 1, two spaced-apart bearing approach pairs 6 are provided, in which ends 7 of a scissors 8 are pivotally mounted. Other ends of the scissors 8 are hinged at the bottom of the seat plate 2. Between the bearing-approach pairs 6, a bearing device 9 is provided for supporting the lifting tube 4.

An der Rückenlehne 3 ist rückseitig die Antriebseinrichtung der Hubeinrichtung angebracht, Die Antriebseinrichtung ist als Elektromotor ausgebildet und ist durch ein entsprechendes Bedienteil beispielsweise von einem Benutzer des Badewannenlifters oder einer Pflegekraft betätigbar, Die Antriebseinrichtung steht mit dem Hubrohr 4 in drehmomentübertragender Weise in Verbindung. Zum Anheben bzw. Absenken der Sitzplatte 2 und der Rückenlehne 3 wird ein Innenrohr bzw. Innenrohre des Hubrohrs 4 ausgefahren bzw. eingefahren. Diese Ausfahr- bzw, Einfahrbewegung wird durch die Antriebseinrichtung erzielt.The drive device is designed as an electric motor and can be actuated by a corresponding control unit, for example, by a user of Badewannenlifters or a caregiver, the drive means is connected to the lifting tube 4 in torque transmitting Way in touch. To raise or lower the seat plate 2 and the backrest 3, an inner tube or inner tubes of the lifting tube 4 is extended or retracted. This extension or retraction movement is achieved by the drive device.

Zur Verbindung der Rückenlehne 3 mit der Sitzplatte 2 sind zwei identisch ausgebildete Arretier-Bolzen 10 vorgesehen. Jeder Arretier-Bolzen 10 weist eine Längs-Mittel-Achse 11 auf und ist an der Rückenlehne 3 axial beweglich gelagert. Hierzu sind entsprechende Lager-Ansätze 12 an der Rückseite der Rückenlehne 3 angeformt. Vorzugsweise weisen die Lager-Ansätze 12 an die Außenform der Arretier-Bolzen 10 angepasste geschlossene Öffnungen auf, welche die Arretier-Bolzen 10 durchsetzen. Hierdurch wird eine Führung der Arretier-Bolzen 10 längs deren Längs-Mittel-Achse 11 erzielt. Die Arretier-Bolzen 10 fluchten miteinander, sind aber zueinander beabstandet. Sie sind horizontal verlaufend angeordnet und stehen ungefähr senkrecht zu dem Hubrohr 4.To connect the backrest 3 with the seat plate 2, two identically designed locking bolts 10 are provided. Each locking bolt 10 has a longitudinal center axis 11 and is axially movably mounted on the backrest 3. For this purpose, corresponding bearing lugs 12 are integrally formed on the back of the backrest 3. Preferably, the bearing lugs 12 on the outer shape of the locking pin 10 matched closed openings, which pass through the locking bolts 10. As a result, a guide of the locking bolt 10 along the longitudinal center axis 11 is achieved. The locking bolts 10 are aligned with each other, but are spaced from each other. They are arranged horizontally extending and are approximately perpendicular to the lifting tube. 4

Jeder Arretier-Bolzen 10 weist des Weiteren ein inneres Ende 13 auf, Die Enden 13 der beiden Arretier-Bolzen 10 liegen in der in Fig. 1 dargestellten Position der Sitzplatte 2 und der Rückenlehne 3 außenseitig an dem Hubrohr 4 an. Sie sind dabei einander zugewandt. Ferner weist jeder Arretier-Bolzen 10 einen äußeren End-Abschnitt 14 auf, der im Querschnitt kreisringförmig oder kreisförmig ausgebildet ist. Die End-Abschnitte 14 der Arretier-Bolzen 10 können mit entsprechenden, einander gegenüberliegenden Arretier-Ausnehmungen in der Sitzplatte 2 in Eingriff gebracht werden. In der Arretier-Position der Arretier-Bolzen 10 sind die Sitzplatte 2 und die Rückenlehne 3 miteinander gekoppelt, d. h. unlösbar miteinander verbunden.Each locking bolt 10 further has an inner end 13, the ends 13 of the two locking bolts 10 are in the in Fig. 1 shown position of the seat plate 2 and the backrest 3 on the outside of the lifting tube 4 at. They are facing each other. Furthermore, each locking bolt 10 has an outer end portion 14, which is annular or circular in cross section. The end portions 14 of the locking bolts 10 can be engaged with corresponding locking recesses in the seat plate 2 opposite each other. In the locking position of the locking bolt 10, the seat plate 2 and the backrest 3 are coupled together, that is, inextricably linked.

Auf jedem Arretier-Bolzen 10 sitzt eine Schraubendruckfeder 15, die sich an einem Lager-Ansatz 12 der Rückenlehne 3 abstützt. Dieser Lager-Ansatz 12 bildet quasi ein Widerlager, Die Schraubenfeder 15 kann sich auch an einer anderen Stelle der Rückenlehne 3 abstützen. Jede Schraubendruckfeder 15 liegt außerdem an einem Kraft-Übertragungs-Ring 16 an, der auf dem entsprechenden Arretier-Bolzen 10 axial festgelegt ist. Von dem das Widerlager bildenden Lager-Ansatz 12 erstreckt sich jede Schraubendruckfeder 15 nach innen in Richtung auf das Hubrohr 4 zu dem jeweiligen Kraft-Übertragungs-Ring 16. Durch die Schraubendruckfedern 15 werden die Arretier-Bolzen 10 mit ihren inneren Enden 13 an das Hubrohr 4 gedrückt. Die inneren Enden 13 weisen eine ebene Anlagefläche 17 auf. Die Anlagefläche 17 kann auch an die Außenform des Hubrohrs 4 angepasst sein, d. h. sie kann auch eine entsprechende Krümmung aufweisen.On each locking pin 10 sits a helical compression spring 15 which is supported on a bearing neck 12 of the backrest 3. This bearing approach 12 forms an abutment, so to speak, the coil spring 15 can also be supported at a different point of the backrest 3. Each helical compression spring 15 is also applied to a power transmission ring 16 which is axially fixed on the corresponding locking pin 10. From the abutment forming bearing shoulder 12, each helical compression spring 15 extends inwardly in the direction of the lifting tube 4 to the respective power transmission ring 16. By the helical compression springs 15, the locking bolts 10 with their inner ends 13 to the lifting tube 4 pressed. The inner ends 13 have a planar contact surface 17. The contact surface 17 may also be adapted to the outer shape of the lifting tube 4, d. H. it can also have a corresponding curvature.

Mit dem unteren Ende des Hubrohrs 4 ist ein Spindelfuß 18 verbunden. Dieser steht mit der Lager-Einrichtung 9 des Bodengestells 1 in lösbarer gelenkiger Verbindung und stützt dort das Hubrohr 4 ab. Der Spindelfuß 18 weist eine symmetrische Gestalt auf. Er umfasst zwei gegenüberliegende Führungs-Ausnehmungen 19, die sich jeweils nach unten erweitern. Jede Führungs-Ausnehmung weist einen unteren geraden Freigabe-Abschnitt 20 und einen sich an diesen anschließenden Schräg-Abschnitt 21 auf. Die Freigabe-Abschnitte 20 der beiden Führungs-Ausnehmungen 19 verlaufen parallel zueinander und erstrecken sich in Richtung der Längs-Mittel-Achse 22 des Hubrohrs 4. Sie sind gegenüber dem runden Mantel des Hubrohrs 4 nach innen, d.h, aufeinander zu versetzt. Die Schräg-Abschnitte 21 verlaufen von den Freigabe-Abschnitten 20 nach oben außen - also voneinander weg - und enden unten an dem Mantel des Hubrohrs 4. Sie befinden sich in dem Bereich des Hubrohrs 4, wo dieses seinen größten Durchmesser aufweist. Die Breite der Freigabe- und Schräg-Abschnitte 20, 21 entspricht in etwa der Breite der Anlageflächen 17 der Arretier-Bolzen 10. Die Führungs-Ausnehmungen 19 sind nach außen offen und sind einseitig durch eine Führungs-Wand 23 begrenzt.With the lower end of the lifting tube 4, a spindle foot 18 is connected. This communicates with the bearing device 9 of the floor frame 1 in detachable articulated connection and supports the lifting tube 4 from there. The spindle root 18 has a symmetrical shape. It comprises two opposite guide recesses 19, which each extend downward. Each guide recess has a lower straight release portion 20 and an adjoining inclined portion 21. The release sections 20 of the two guide recesses 19 extend parallel to one another and extend in the direction of the longitudinal center axis 22 of the lifting tube 4. They are opposite to the circular jacket of the lifting tube 4 inwards, ie, offset from each other. The inclined sections 21 extend from the release sections 20 upwardly outward - ie away from each other - and end at the bottom of the jacket of the lifting tube 4. They are in the region of the lifting tube 4, where this has its largest diameter. The width of the release and oblique sections 20, 21 corresponds approximately the width of the contact surfaces 17 of the locking bolt 10. The guide recesses 19 are open to the outside and are bounded on one side by a guide wall 23.

Nachfolgend wird die Funktion des erfindungsgemäßen Badewannenlifters näher beschrieben. Das Hubrohr 4 ist durch die betätigbare Antriebseinrichtung ein- bzw. ausfahrbar. Hierdurch können die Sitzplatte 2 und die Rückenlehne 3 wunschgemäß in der Höhe verstellt werden, Die Hubschere 8 bewirkt dabei eine Führung.The function of the bathtub lifter according to the invention will be described in more detail below. The lifting tube 4 is switched on or extended by the actuatable drive means. As a result, the seat plate 2 and the backrest 3 can be adjusted as desired in height, the scissors 8 causes a guide.

Gemäß Fig. 1 befinden sich die Sitzplatte 2 und die Rückenlehne 3 in einer angehobenen Position, die zwischen der untersten und der obersten Endposition liegt, Die Sitzplatte 2 und die Rückenlehne 3 sind also etwas nach oben gefahren. Die Arretier-Bolzen 10 liegen mit ihren Anlageflächen 17 an dem Mantel des Hubrohrs 4 an. Dies wird durch die Schraubendruckfedern 15 erzielt, die die Arretier-Bolzen 10 an das Hubrohr 4 drücken. Bei einer Höhenverstellung der Sitzplatte 2 und der Rückenlehne 3 bewegen sich die Anlageflächen 17 stets entlang des Hubrohrs 4 auf dessen Mantel. Die Arretier-Bolzen 10 greifen in die Arretier-Ausnehmungen der Sitzplatte 2 ein.According to Fig. 1 are the seat plate 2 and the backrest 3 in a raised position, which lies between the lowermost and the uppermost end position, the seat plate 2 and the backrest 3 are therefore driven slightly upwards. The locking bolts 10 rest with their contact surfaces 17 against the jacket of the lifting tube 4. This is achieved by the helical compression springs 15 which press the locking bolts 10 to the lifting tube 4. In a height adjustment of the seat plate 2 and the backrest 3, the contact surfaces 17 always move along the lifting tube 4 on the jacket. The locking bolts 10 engage in the locking recesses of the seat plate 2.

Beim Absenken der Sitzplatte 2 und der Rückenlehne 3 in die unterste Endposition kommen die Arretier-Bolzen 10 in den Bereich des Spindelfußes 18. Beim Spindelfuß 18 endet die Anlage der Anlageflächen 17 der Arretier-Bolzen 10 an dem Hubrohr 4. Die Anlageflächen 17 werden nun durch die Schraubendruckfedern 15 in die Führungs-Ausnehmungen 19 des Spindelfußes 18 gedrückt. Die Schraubendruckfedern 15 entfalten eine derart große Druckkraft, dass die Anlageflächen 17 stets den Konturen der Führungs-Ausnehmungen 19 folgen. Bei den Schräg-Abschnitten 21, die eine Verbindung zwischen dem Mantel des Hubrohrs 4 und den Freigabe-Abschnitten 20 darstellen, werden die Arretier-Bolzen 10 allmählich aus den entsprechenden Arretier-Ausnehmungen in der Sitzplatte 2 durch die Schraubendruckfedern 15 bewegt. Im Bereich der Freigabe-Abschnitte 20 sind die Arretier-Bolzen 10 vollständig aus den Arretier-Ausnehmungen in der Sitzplatte 2 geführt, so dass in dieser Position die Rückenlehne 3 von der Sitzplatte 2 abnehmbar ist. Die Führungs-Wand 23 sorgt für eine sichere Führung der Arretier-Bolzen 10 in den Führungs-Ausnehmungen 19.When lowering the seat plate 2 and the backrest 3 in the lowest end position, the locking bolts 10 come into the area of the spindle base 18. The spindle foot 18, the system of contact surfaces 17 of the locking pin 10 ends on the lifting tube 4. The contact surfaces 17 are now pressed by the helical compression springs 15 in the guide recesses 19 of the spindle base 18. The helical compression springs 15 develop such a large compressive force that the contact surfaces 17 always follow the contours of the guide recesses 19. In the inclined sections 21, the represent a connection between the jacket of the lifting tube 4 and the release portions 20, the locking bolts 10 are gradually moved from the corresponding locking recesses in the seat plate 2 by the helical compression springs 15. In the area of the release sections 20, the locking bolts 10 are guided completely out of the locking recesses in the seat plate 2, so that in this position the backrest 3 can be removed from the seat plate 2. The guide wall 23 ensures a secure guidance of the locking bolts 10 in the guide recesses 19.

Wenn die Sitzplatte 2 und die Rückenlehne 3 aus dieser untersten Endposition wieder nach oben verfahren werden, werden die Arretier-Bolzen 10 durch die Schräg-Abschnitte 21 in umgekehrter Weise in die entsprechenden Arretier-Ausnehmungen in der Sitzplatte 2 geführt, wodurch eine Kopplung der Sitzplatte 2 und der Rückenlehne 3 erreicht wird.If the seat plate 2 and the backrest 3 are moved back up from this lowest end position, the locking bolts 10 are guided by the inclined portions 21 in the reverse manner in the corresponding locking recesses in the seat plate 2, whereby a coupling of the seat plate 2 and the backrest 3 is reached.

Die Verriegelung zwischen Sitzplatte 2 und Rückenlehne 3 wird also durch den normalen Bewegungsablauf der Sitzplatte 2 und Rückenlehne 3 gesteuert. Die Verriegelung wird dabei selbsttätig herbeigeführt, wenn die Sitzplatte 2 und die Rückenlehne 3 aus der untersten Endposition nach oben gefahren werden. Beim Absenken in die unterste Endposition wird diese Verriegelung selbsttätig aufgehoben.The lock between the seat plate 2 and the backrest 3 is thus controlled by the normal movement of the seat plate 2 and backrest 3. The locking is thereby automatically brought about when the seat plate 2 and the backrest 3 are moved from the lowest end position upwards. When lowering to the lowest end position, this lock is automatically canceled.

Claims (6)

  1. Bath tub lifter for seniors or disabled persons, comprising
    - a floor frame (1) for resting on the floor of a bath tub,
    - a seat plate (2) and a backrest (3) in connection therewith,
    - a lifting means for adjusting the height of the seat plate (2) and the backrest (3) between a lowermost and an uppermost end position, wherein the lifting means
    - comprises a drive means attached to the backrest (3), and
    - comprises a telescopic lifting tube (4) to be actuated by the drive means, and
    - a spindle base (18) in connection with the lifting tube (4) for providing support against the floor frame (1), and
    - an automatic locking-release means which
    - couples the backrest (3) and the seat plate (2) to one another above the lowermost end position, and
    - releases the backrest (3) and the seat plate (2) in the lowermost end position,
    wherein the locking-release means comprises at least one locking pin (10) for coupling the backrest (3) and the seat plate (2),
    the at least one locking pin (10) is held at the backrest (3), and
    the at least one locking pin (10) can be moved between a release position and a locking position.
  2. Bath tub lifter according to claim 1, characterized in that the seat plate (2) comprises at least one locking recess for receiving the at least one locking pin (10) in its locking position.
  3. Bath tub lifter according to claim 1, characterized by a pressure spring (15) acting on the backrest (3) and pressing the at least one locking pin (10) to the lifting tube (4).
  4. Bath tub lifter according to claim 1, characterized in that the spindle base (18) comprises at least one guiding recess (19) for cooperating with the at least one locking pin (10) in the lowermost end position.
  5. Bath tub lifter according to claim 1, characterized in that the lifting tube (4) comprises a lifting tube casing.
  6. Bath tub lifter according to claim 4 or 5, characterized in that the at least one guiding recess (19) comprises a diagonal section (21) extending diagonally downwards from the lifting tube casing, and a release section (20) offset inwards with respect to the lifting tube casing for releasing the backrest (3) and the seat plate (2) from one another.
EP06116747A 2005-07-14 2006-07-06 Bath lift Not-in-force EP1743614B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005011259U DE202005011259U1 (en) 2005-07-14 2005-07-14 Lifting seat for use by elderly and handicapped in bath has seat plate and back rest which are mounted on vertical telescopic tube with spindle at its base which raises them

Publications (2)

Publication Number Publication Date
EP1743614A1 EP1743614A1 (en) 2007-01-17
EP1743614B1 true EP1743614B1 (en) 2010-03-03

Family

ID=35160753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06116747A Not-in-force EP1743614B1 (en) 2005-07-14 2006-07-06 Bath lift

Country Status (3)

Country Link
EP (1) EP1743614B1 (en)
AT (1) ATE459324T1 (en)
DE (2) DE202005011259U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103070750B (en) * 2013-01-08 2015-12-30 太仓市康辉科技发展有限公司 Nursing chair and the pregnant care appliances of the old,weak,sick and disabled
US11654066B2 (en) * 2019-06-13 2023-05-23 Drive Medical Gmbh & Co. Kg Bathtub lift

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853936B1 (en) 1997-01-18 2002-06-19 Aquatec Peter Schmidt GmbH Bath lift for elderly and disabled persons
DE19839176A1 (en) * 1998-08-28 2000-03-02 Wolfgang Dentler Bath lift for handicapped and frail also ill persons with base element seat plate and guide unit arranged between base element and seat

Also Published As

Publication number Publication date
EP1743614A1 (en) 2007-01-17
DE202005011259U1 (en) 2005-10-13
ATE459324T1 (en) 2010-03-15
DE502006006309D1 (en) 2010-04-15

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