EP0622042B1 - Backrest for a bathtub lift assembly - Google Patents

Backrest for a bathtub lift assembly Download PDF

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Publication number
EP0622042B1
EP0622042B1 EP92122107A EP92122107A EP0622042B1 EP 0622042 B1 EP0622042 B1 EP 0622042B1 EP 92122107 A EP92122107 A EP 92122107A EP 92122107 A EP92122107 A EP 92122107A EP 0622042 B1 EP0622042 B1 EP 0622042B1
Authority
EP
European Patent Office
Prior art keywords
plate
foot
backrest
wall
side walls
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
EP92122107A
Other languages
German (de)
French (fr)
Other versions
EP0622042A1 (en
Inventor
Peter Schmidt
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.)
Schmidt and Lenhardt GmbH and Co OHG
Original Assignee
Schmidt and Lenhardt GmbH and Co OHG
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 to ES92122107T priority Critical patent/ES2083062T3/en
Priority to EP92122107A priority patent/EP0622042B1/en
Priority to DE59205324T priority patent/DE59205324D1/en
Priority to AT92122107T priority patent/ATE133842T1/en
Priority to DK92122107.3T priority patent/DK0622042T3/en
Application filed by Schmidt and Lenhardt GmbH and Co OHG filed Critical Schmidt and Lenhardt GmbH and Co OHG
Priority to US08/173,647 priority patent/US5381565A/en
Priority to CA002112328A priority patent/CA2112328A1/en
Priority to JP5348416A priority patent/JP2578723B2/en
Publication of EP0622042A1 publication Critical patent/EP0622042A1/en
Application granted granted Critical
Publication of EP0622042B1 publication Critical patent/EP0622042B1/en
Priority to GR960400873T priority patent/GR3019485T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • 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
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0244—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by fluid means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/12—Separate seats or body supports
    • A47K3/122—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
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/34—Specific positions of the patient sitting
    • 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
    • A61G7/1021—Inflatable cushions

Definitions

  • the invention relates to a back support for lift devices usable in bathtubs, with a plate that can be pivoted on a lifting plate of the lift device as a backrest, and an adjusting device that effects an inclination adjustment of the plate, which is arranged on the back of the plate, can be filled with pressurized water, and is closed at the end from flexible, im essential non-stretch material, which is connected to a multi-way hand control valve.
  • Such a back support is known from WO-A-82 03 002.
  • the tube piece is arranged directly on the back of the plate and is completely free.
  • the piece of hose should be supported on the bathtub during operation. But if the backrest is loaded by the upper body of a person, it can happen that when the hose piece is pressurized, the plate is not pivoted in the direction of the steep position, but the entire lift device is moved in the tub. Furthermore, a gusset-shaped gap is formed between the inclined plate and the bathtub, so that the plate is at a distance from the bathtub in the region of the tube piece.
  • the diameter of the piece of hose must now be very large, because when filling the hose this distance is first overcome before any inclination adjustment can take place.
  • the very large diameter of the hose section makes the known lift device more expensive, continues to be a hindrance in handling and delays the response time considerably, since several liters of water have to flow into the hose section before the plate swivels effectively.
  • FR-A-21 36 526 shows a lounger with a base frame on which two pieces of hose which can be actuated by pressure medium are arranged in order to pivot frame parts of the lounger. These frame parts each have a tubular support bracket that presses on the tube piece. Since the hose section is located directly under the swivel bearing of the adjustable parts of the bed, there are unfavorable power transmission conditions and since the contact surface of the support bracket that comes into contact with the hose section is very small, because the diameter of the bracket has only a fraction of the diameter of the hose section, only a very limited lifting force can be achieved. In the steep position of the plate, the support bracket not only flattens the tube piece in the contact zone, but also deforms the tube wall in a concave manner, as a result of which the tube is subjected to high local loads.
  • the object of the invention is to provide a back support of the type mentioned in such a way that there is no need to support the piece of tubing on the bath tub and the piece of tubing is positioned so that it is displaceable in such a way that with a minimal size of the piece of tubing a sufficient inclination adjustment of the plate with a high plate pivoting moment is achieved.
  • the plate is mounted on a foot that can be placed on the lifting plate of the lifting device, that between the plate and the foot a, at least for the most part, closed chamber is formed, in which the piece of tubing at a distance from the Plate is securely positioned and is supported on the base on the foot, and that the plate has a support wall on the back, which extends parallel to the plate pivot axis at a distance from it at least over the largest part of the length of the tube piece, the bottom wall at least in the central region, the diameter of the Has adapted pressure-filled hose section concave curvature with a wide contact surface on the hose section.
  • Another advantage of the invention is that the foot only has to protrude slightly beyond the plate forming the backrest, with the result that in the steep position of the plate, in which it forms an angle of approximately 15 ° with the vertical, the solder from the upper edge of the plate touches the rear foot end.
  • the tangential plane of the support surface of the support wall intersects at least approximately the axis of the pivot bearing of the plate, whereby the support wall is directed essentially radially with respect to the pivot bearing axis.
  • the support wall In the steep position of the backrest plate, the support wall forms an angle with the horizontal of approximately 30 ° to approximately 40 ° and in the flat inclination position, this support wall extends approximately horizontally, ie parallel to the bottom of the foot.
  • the back support 10 consists of a foot 12 and a plate 14 forming the backrest, as well as an end piece of hose 16.
  • the plate 14 has Parallel stiffening walls 18 running from the bottom upwards, to which two side walls 20 adjoin in the lower region, which are connected to one another by a rear wall 22 (cf. FIG. 2) and form a box which is open at the bottom.
  • the foot 12 consists of a base plate 24, two side walls 26 and a rear wall 28.
  • the side walls 26 together with the base 24 and the rear wall 28 form a housing in which the tube piece 16 is received.
  • a standing front wall 30 and a rear partition 32 are provided to secure the position of the tube piece 16 are shown in FIG. 3 still a standing front wall 30 and a rear partition 32 are provided.
  • the two walls 30 and 32 position the hose section 16.
  • a pivot axis 34 extends at a certain distance above the bottom of the foot, which projects outwards from the two side walls 26 and into corresponding bores in the ribs 18 of the plate 14 and / or other holes in the side walls 20 of the plate 14 engage. In this way, the plate 14 is pivotally mounted on the base 12.
  • the bottom 24 of the foot 12 has a flat lower surface which is intended to rest on a lifting plate of a lifting device.
  • the bottom 24 also has two lateral edge reinforcements, in which parallel channels 36 are formed, in which metal rods 38 are inserted, which protrude from the base 12 with their front ends and are bent off at the projecting ends, as in FIGS.
  • the hose section 16 lies transversely to the longitudinal direction of the back support 10 and the lift device. Its two ends are connected pressure-tight by means of clamping pieces 40. Two clamping pieces 40 are mortised and / or riveted together, including the edge of the hose piece. The total length of the tube piece 16 with the pairs of clamping pieces on both sides is equal to the clear width of the foot 12, measured between the two side walls 26. In the middle of the in FIG. 4, a tube with a comparatively small cross-section is pressed in on the left-hand side of the hose section, which is connected to a fitting 42 which belongs to a connecting line by means of which the hose section 16 is connected to a manual control multi-way valve.
  • a support wall 44 is provided, the bottom tangential plane of which intersects the axis of the pivot bearing 34. This plane forms an angle of approximately 45 ° with the plane of the plate 14 and the support wall 44 is located at a sufficient distance from the rear surface of the plate 14 and from the pivot bearing 34, so that this support wall 44 can work effectively with the tube piece 16 to the To pivot plate 14 even with strong counterforce with sufficient lever arm.
  • the central region of the support wall 44 is concavely curved on the bottom. This concave curvature 46 extends over the entire length of the support wall 44 measured in the direction of the swivel axis. This curvature 46 is adapted to the diameter of the filled tube piece 16, thereby creating a wide-area support.
  • the hose piece takes 16 a cylindrical shape and is supported both on the bottom 24 and on the rear intermediate wall 32 of the foot 12 and presses the plate 14 by means of the support wall 44 into a steep position in which the plate 14 is at an angle of approximately 15 with the vertical ° forms. If the pressure water is let out of the hose section 16, the plate 14 swings slowly backwards, the hose section 16 becoming increasingly flattened.
  • the plate 14 can be fixed in any inclination position.
  • the full swivel angle is 30 ° in the exemplary embodiment.
  • the plate 14 then forms an angle of 45 ° with the vertical. This position is shown in FIG. 2 shown. In this flat inclination position, the support wall 44 is essentially horizontal.
  • a gas tension spring 48 biases the plate 14 in the direction of this flat inclination position (cf. FIG. 2), so that plate 14 and foot 12 cannot be pivoted freely relative to one another, which would also interfere with transportation, for example.
  • this tension spring 48 secures the plate 14 even in the intermediate positions predetermined by the pressurized water filling in the hose section 16.

Abstract

A backrest (10) which can be fitted on a lifting plate of a lift assembly has a foot (12) and a plate (14) which can be pivoted on the latter about a pivoting axis (34) and forms the backrest. On the back, a transversely extending support wall (44) is attached or moulded onto the plate (14) with sufficient distance from the pivoting axis (34). Arranged between the support wall (44) and the bottom (24) of the foot (12) is a piece of tube (16) which lies transversely, is arranged parallel to the pivoting axis (34), is closed at the end, and is connected via a hand control valve to the compressed-water system of the lift assembly. By filling the piece of tube (16), the plate (14) is raised via the support wall (44) into a steep position, even if the upper body of a user is loading the plate (14). By letting off compressed water in a controlled manner, the plate (14) moves infinitely variably into different positions of inclination right into a flat inclined position in which a rear attachment of the plate (14) strikes against the foot (12). <IMAGE>

Description

Die Erfindung betrifft eine Rückenstütze für in Badewannen einsetzbare Liftgeräte, mit einer, an einer Hubplatte des Liftgerätes schwenkbaren Platte als Rückenlehne, sowie einer, eine Neigungsverstellung der Platte bewirkenden Einstellvorrichtung, die ein plattenrückseitig angeordnetes, mit Druckwasser füllbares, endseitig geschlossenes Schlauchstück aus flexiblem, im wesentlichen nicht dehnbarem Material aufweist, das an ein Mehrwege-Handsteuerventil angeschlossen ist.The invention relates to a back support for lift devices usable in bathtubs, with a plate that can be pivoted on a lifting plate of the lift device as a backrest, and an adjusting device that effects an inclination adjustment of the plate, which is arranged on the back of the plate, can be filled with pressurized water, and is closed at the end from flexible, im essential non-stretch material, which is connected to a multi-way hand control valve.

Eine derartige Rückenstütze ist aus der WO-A-82 03 002 bekannt. Bei dieser bekannten Rückenstütze ist das Schlauchstück unmittelbar an der Rückseite der Platte angeordnet und liegt vollkommen frei. Das Schlauchstück soll sich im Betrieb an der Badewanne abstützen. Wird aber die Rückenlehne vom Oberkörper einer Person belastet, so kann es passieren, daß bei Druckbeaufschlagung des Schlauchstückes nicht die Platte in Richtung der Steilstellung verschwenkt wird, sondern das ganze Liftgerät in der Wanne verschoben wird. Weiterhin wird zwischen der geneigten Platte und der Badewanne ein zwickelförmiger Spalt gebildet , sodaß die Platte im Bereich des Schlauchstückes einen Abstand von der Badewanne aufweist. Der Durchmesser des Schlauchstückes muß nun sehr groß sein, weil beim Füllen des Schlauches erst einmal dieser Abstand überwunden wird, bevor überhaupt eine Neigungsverstellung erfolgen kann. Der sehr große Durchmesser des Schlauchstückes verteuert das bekannte Liftgerät, stellt weiterhin eine Behinderung in der Handhabung dar und verzögert die Ansprechzeit erheblich, da erst etliche Liter Wasser in das Schlauchstück einströmen müssen, bevor ein wirksames Verschwenken der Platte eintritt.Such a back support is known from WO-A-82 03 002. In this known back support, the tube piece is arranged directly on the back of the plate and is completely free. The piece of hose should be supported on the bathtub during operation. But if the backrest is loaded by the upper body of a person, it can happen that when the hose piece is pressurized, the plate is not pivoted in the direction of the steep position, but the entire lift device is moved in the tub. Furthermore, a gusset-shaped gap is formed between the inclined plate and the bathtub, so that the plate is at a distance from the bathtub in the region of the tube piece. The diameter of the piece of hose must now be very large, because when filling the hose this distance is first overcome before any inclination adjustment can take place. The very large diameter of the hose section makes the known lift device more expensive, continues to be a hindrance in handling and delays the response time considerably, since several liters of water have to flow into the hose section before the plate swivels effectively.

Die FR-A-21 36 526 zeigt eine Liege mit einem Bodengestell, auf dem zwei druckmittelbetätigbare Schlauchstücke angeordnet sind, um Rahmenteile der Liege zu verschwenken. Dabei weisen diese Rahmenteile jeweils einen rohrförmigen Stützbügel auf, der auf das Schlauchstück drückt. Da das Schlauchstück sich unmittelbar unter dem Schwenklager der verstellbaren Teile der Liege befindet, ergeben sich ungünstige Kraftübertragungsverhältnisse und da weiterhin die mit dem Schlauchstück in Kontakt tretende Auflagefläche des Stützbügels sehr klein ist, denn der Durchmesser des Bügels hat nur einen Bruchteil des Durchmessers des Schlauchstückes, kann nur eine sehr begrenzte Hubkraft erzielt werden. Der Stützbügel flacht in der Steilstellung der Platte das Schlauchstück in der Kontaktzone nicht nur ab, sondern verformt die Schlauchwand konkav, wodurch der Schlauch lokal hoch belastet wird.FR-A-21 36 526 shows a lounger with a base frame on which two pieces of hose which can be actuated by pressure medium are arranged in order to pivot frame parts of the lounger. These frame parts each have a tubular support bracket that presses on the tube piece. Since the hose section is located directly under the swivel bearing of the adjustable parts of the bed, there are unfavorable power transmission conditions and since the contact surface of the support bracket that comes into contact with the hose section is very small, because the diameter of the bracket has only a fraction of the diameter of the hose section, only a very limited lifting force can be achieved. In the steep position of the plate, the support bracket not only flattens the tube piece in the contact zone, but also deforms the tube wall in a concave manner, as a result of which the tube is subjected to high local loads.

Aufgabe der Erfindung ist es, eine Rückenstütze der eingangs genannten Art so auszubilden, daß eine Abstützung des Schlauchstückes an der Badewanne entbehrlich wird und das Schlauchstück verschiebesicher so positioniert wird, daß bei minimaler Größe des Schlauchstückes eine ausreichende Neigungsverstellung der Platte mit hohem Plattenschwenkmoment erreicht wird.The object of the invention is to provide a back support of the type mentioned in such a way that there is no need to support the piece of tubing on the bath tub and the piece of tubing is positioned so that it is displaceable in such a way that with a minimal size of the piece of tubing a sufficient inclination adjustment of the plate with a high plate pivoting moment is achieved.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß die Platte an einem, auf der Hubplatte des Liftgerätes aufsetzbaren Fuß gelagert ist, daß zwischen der Platte und dem Fuß eine, wenigstens zum größten Teil geschlossene Kammer ausgebildet ist, in der das Schlauchstück im Abstand von der Platte lagesicher positioniert ist und sich bodenseitig auf dem Fuß abstützt, und daß die Platte rückseitig eine, sich parallel zur Plattenschwenkachse im Abstand von dieser wenigstens über den größten Teil der Länge des Schlauchstückes erstreckende Stützwand aufweist, die bodenseitig wenigstens im Mittelbereich eine, dem Durchmesser des druckwassergefüllten Schlauchstückes angepaßte konkave Wölbung mit breiter Auflagefläche auf dem Schlauchstück aufweist.To solve this problem it is provided according to the invention that the plate is mounted on a foot that can be placed on the lifting plate of the lifting device, that between the plate and the foot a, at least for the most part, closed chamber is formed, in which the piece of tubing at a distance from the Plate is securely positioned and is supported on the base on the foot, and that the plate has a support wall on the back, which extends parallel to the plate pivot axis at a distance from it at least over the largest part of the length of the tube piece, the bottom wall at least in the central region, the diameter of the Has adapted pressure-filled hose section concave curvature with a wide contact surface on the hose section.

Um ein Schlauchstück mit begrenztem Durchmesser einsetzen zu können, muß dieses der Schwenkachse benachbart angeordnet werden. Wegen des notwendigerweise kurzen Hebelarmes der Stützwand liegt diese breitflächig auf dem Schlauchstück auf, sodaß beim Füllen des Schlauchstückes eine hohe Hubkraft erzielt wird. Dank der konkaven Wölbung an der Bodenseite der Stützwand wird auch eine breite Auflagefläche bei gefülltem Schlauchstück erzielt.In order to be able to use a piece of hose with a limited diameter, it must be arranged adjacent to the pivot axis. Because of the necessarily short lever arm of the support wall, it rests over a large area on the hose section, so that a high lifting force is achieved when the hose section is filled. Thanks to the concave curvature on the bottom side of the retaining wall, a wide contact surface is also achieved when the hose section is full.

Ein weiterer Vorteil der Erfindung besteht darin, daß der Fuß nur wenig über die, die Rückenlehne bildende Platte nach hinten vorzustehen braucht, wobei erreicht wird, daß in der Steilstellung der Platte, in der diese mit der Vertikalen einen Winkel von etwa 15° bildet, das Lot vom Oberrand der Platte etwa das hintere Fußende tangiert.Another advantage of the invention is that the foot only has to protrude slightly beyond the plate forming the backrest, with the result that in the steep position of the plate, in which it forms an angle of approximately 15 ° with the vertical, the solder from the upper edge of the plate touches the rear foot end.

Eine vorteilhafte Weiterbildung der Erfindung besteht darin, daß die Tangentialebene der Auflagefläche der Stützwand wenigstens angenähert die Achse des Schwenklagers der Platte schneidet, wodurch die Stützwand bezüglich der Schwenklagerachse im wesentlichen radial gerichtet ist. In der Steilstellung der Rückenlehnenplatte bildet die Stützwand mit der Horizontalen einen Winkel von etwa 30° bis etwa 40° und in der Flachneigungsstellung erstreckt sich diese Stützwand etwa horizontal, d.h. parallel zum Boden des Fußes.An advantageous development of the invention is that the tangential plane of the support surface of the support wall intersects at least approximately the axis of the pivot bearing of the plate, whereby the support wall is directed essentially radially with respect to the pivot bearing axis. In the steep position of the backrest plate, the support wall forms an angle with the horizontal of approximately 30 ° to approximately 40 ° and in the flat inclination position, this support wall extends approximately horizontally, ie parallel to the bottom of the foot.

Anhand der Zeichnung, die ein Ausführungsbeispiel darstellt, wird die Erfindung näher beschrieben.The invention is described in more detail with reference to the drawing, which represents an exemplary embodiment.

Es zeigt:

FIG. 1
Eine Seitenansicht der neuen Rückenstütze in Steilstellung,
FIG. 2
eine Seitenansicht der Rückenstütze in größerem Maßstab, jedoch in Flachneigungsstellung,
FIG. 3
eine Seitenansicht des Fußes der Rückenstütze mit eingelegtem Schlauchstück und
FIG. 4
eine rückseitige Ansicht des Fußes mit eingelegtem Schlauchstück unter Weglassung der Fuß-Rückwand.
It shows:
FIG. 1
A side view of the new back support in a steep position,
FIG. 2nd
a side view of the back support on a larger scale, but in a flat inclination position,
FIG. 3rd
a side view of the foot of the back support with inserted piece of tubing and
FIG. 4th
a rear view of the foot with an inserted piece of tubing, omitting the rear wall of the foot.

Die Rückenstütze 10 besteht aus einem Fuß 12 und einer, die Rückenlehne bildenden Platte 14, sowie einem endseitig geschlossenen Schlauchstück 16. Die Platte 14 hat rückseitig von unten nach oben verlaufende parallele Versteifungswände 18, an die sich im unteren Bereich zwei Seitenwände 20 anschließen, die durch eine Rückwand 22 (vgl. FIG. 2) miteinander verbunden sind und einen nach unten offenen Kasten bilden.The back support 10 consists of a foot 12 and a plate 14 forming the backrest, as well as an end piece of hose 16. The plate 14 has Parallel stiffening walls 18 running from the bottom upwards, to which two side walls 20 adjoin in the lower region, which are connected to one another by a rear wall 22 (cf. FIG. 2) and form a box which is open at the bottom.

Der Fuß 12 besteht aus einer Bodenplatte 24, zwei Seitenwänden 26 und einer Rückwand 28. Die Seitenwände 26 bilden zusammen mit dem Boden 24 und der Rückwand 28 ein Gehäuse, in dem das Schlauchstück 16 aufgenommen ist. Zur Lagesicherung des Schlauchstückes 16 sind gemäß FIG. 3 noch eine hochstehende Vorderwand 30 und eine hintere Zwischenwand 32 vorgesehen. Die beiden Wände 30 und 32 positionieren das Schlauchstück 16. Zwischen den beiden Seitenwänden 26 erstreckt sich im vorderen Bereich des Fußes 12 in gewissem Abstand oberhalb der Fußunterseite eine Schwenkachse 34, die aus den beiden Seitenwänden 26 nach außen herausragt und in entsprechende Bohrungen in den Rippen 18 der Platte 14 und/oder weiteren Bohrungen in den Seitenwänden 20 der Platte 14 eingreifen. Auf diese Weise wird die Platte 14 am Fuß 12 schwenkbar gelagert.The foot 12 consists of a base plate 24, two side walls 26 and a rear wall 28. The side walls 26 together with the base 24 and the rear wall 28 form a housing in which the tube piece 16 is received. To secure the position of the tube piece 16 are shown in FIG. 3 still a standing front wall 30 and a rear partition 32 are provided. The two walls 30 and 32 position the hose section 16. Between the two side walls 26, in the front region of the foot 12, a pivot axis 34 extends at a certain distance above the bottom of the foot, which projects outwards from the two side walls 26 and into corresponding bores in the ribs 18 of the plate 14 and / or other holes in the side walls 20 of the plate 14 engage. In this way, the plate 14 is pivotally mounted on the base 12.

Sowohl in der Steilstellung (FIG. 1) der Platte 14 und erst recht in der Flachneigungsstellung gemäß FIG. 2 überlappt der unten offene Kasten - gebildet durch die Rückwand 22 und die Seitenwände 20 mit der Platte selbst - das nach oben offene Gehäuse des Fußes 12, das durch die Seitenwände 26 und die Rückwand 28 gebildet wird. Die im Fuß 12 ausgebildete Kammer für das Schlauchstück 16 ist also in allen Betriebsstellungen der Rückenstütze 10 geschlossen. Der Boden 24 des Fußes 12 hat eine ebene Unterfläche, die zur Auflage auf einer Hubplatte eines Liftgerätes bestimmt ist. Der Boden 24 hat weiterhin zwei seitliche Randverstärkungen, in denen parallele Kanäle 36 ausgebildet sind, in welchen Metallstäbe 38 eingesetzt sind, die mit ihren Vorderenden aus dem Fuß 12 herausragen und an den herausragenden Enden abgekröpft sind, wie in den Figuren 1, 2 und 3 gezeigt ist. Diese Mehrfachabkröpfung erlaubt es, die Rückenstütze 10 auf einfache Weise an der Hubplatte des Liftgerätes zu verankern, indem nämlich die abgekröpften Enden der Stäbe 38 von oben her in entsprechende Löcher der Hubplatte eingefahren werden. Das kurze geradlinige Vorderende jedes Stabes 38 untergreift dann die Hubplatte des Liftgerätes, wenn der Fuß 12 der Rückenstütze auf dieser Hubplatte aufliegt.Both in the steep position (FIG. 1) of the plate 14 and especially in the flat inclination position according to FIG. 2 the box open at the bottom - formed by the rear wall 22 and the side walls 20 with the plate itself - overlaps this open top housing of the foot 12, which is formed by the side walls 26 and the rear wall 28. The chamber formed in the foot 12 for the hose section 16 is therefore closed in all operating positions of the back support 10. The bottom 24 of the foot 12 has a flat lower surface which is intended to rest on a lifting plate of a lifting device. The bottom 24 also has two lateral edge reinforcements, in which parallel channels 36 are formed, in which metal rods 38 are inserted, which protrude from the base 12 with their front ends and are bent off at the projecting ends, as in FIGS. 1, 2 and 3 is shown. This multiple offset allows the backrest 10 to be anchored in a simple manner to the lifting plate of the lifting device, namely by the bent ends of the rods 38 being inserted from above into corresponding holes in the lifting plate. The short straight front end of each bar 38 then engages under the lifting plate of the lifting device when the foot 12 of the backrest rests on this lifting plate.

Das Schlauchstück 16 liegt quer zur Längsrichtung der Rückenstütze 10 und des Liftgerätes. Seine beiden Enden sind mittels Klemmstücken 40 druckdicht verbunden. Je zwei Klemmstücke 40 sind unter Einschluß des Schlauchstückrandes miteinander verzapft und/oder vernietet. Die Gesamtlänge des Schlauchstückes 16 mit den beidseitigen Klemmstückpaaren ist gleich der lichten Breite des Fußes 12, gemessen zwischen den beiden Seitenwänden 26. In der Mitte des in FIG. 4 linksseitig dargestellten Schlauchstückendes wird ein Röhrchen mit einem vergleichsweise geringen Querschnitt mit eingepresst, das mit einem Fitting 42 verbunden ist, welches zu einer Verbindungsleitung gehört, mittels deren das Schlauchstück 16 mit einem Handsteuer-Mehrwegeventil verbunden wird.The hose section 16 lies transversely to the longitudinal direction of the back support 10 and the lift device. Its two ends are connected pressure-tight by means of clamping pieces 40. Two clamping pieces 40 are mortised and / or riveted together, including the edge of the hose piece. The total length of the tube piece 16 with the pairs of clamping pieces on both sides is equal to the clear width of the foot 12, measured between the two side walls 26. In the middle of the in FIG. 4, a tube with a comparatively small cross-section is pressed in on the left-hand side of the hose section, which is connected to a fitting 42 which belongs to a connecting line by means of which the hose section 16 is connected to a manual control multi-way valve.

Zwischen den Seitenwänden 20 der die Rückenlehne bildenden Platte 14 ist eine Stutzwand 44 vorgesehen, deren bodenseitige Tangentialebene die Achse des Schwenklagers 34 schneidet. Diese Ebene bildet mit der Ebene der Platte 14 einen Winkel von etwa 45° und die Stützwand 44 befindet sich in ausreichendem Abstand von der Rückseitenfläche der Platte 14 und vom Schwenklager 34, sodaß diese Stützwand 44 mit dem Schlauchstück 16 wirksam zusammen arbeiten kann, um die Platte 14 auch bei starker Gegenkraft mit ausreichendem Hebelarm zu verschwenken. Wie die Figuren 1 und 3 veranschaulichen ist der Mittelbereich der Stützwand 44 bodenseitig konkav gewölbt. Diese konkave Wölbung46 erstreckt sich über die ganze, in Schwenkachsrichtung gemessene Länge der Stützwand 44. Diese Wölbung 46 ist dem Durchmesser des gefüllten Schlauchstückes 16 angepaßt, wodurch eine breitflächige Auflage geschaffen wird.Between the side walls 20 of the plate 14 forming the backrest, a support wall 44 is provided, the bottom tangential plane of which intersects the axis of the pivot bearing 34. This plane forms an angle of approximately 45 ° with the plane of the plate 14 and the support wall 44 is located at a sufficient distance from the rear surface of the plate 14 and from the pivot bearing 34, so that this support wall 44 can work effectively with the tube piece 16 to the To pivot plate 14 even with strong counterforce with sufficient lever arm. As FIGS. 1 and 3 illustrate, the central region of the support wall 44 is concavely curved on the bottom. This concave curvature 46 extends over the entire length of the support wall 44 measured in the direction of the swivel axis. This curvature 46 is adapted to the diameter of the filled tube piece 16, thereby creating a wide-area support.

Im mit Druckwasser gefüllten Zustand nimmt das Schlauchstück 16 eine zylindrische Form ein und stützt sich dabei sowohl am Boden 24 als auch an der hinteren Zwischenwand 32 des Fußes 12 ab und drückt die Platte 14 mittels der Stützwand 44 in eine Steilstellung, in welcher die Platte 14 mit der Vertikalen einen Winkel von etwa 15° bildet. Läßt man das Druckwasser aus dem Schlauchstück 16 ab, so schwenkt die Platte 14 langsam nach hinten, wobei sich das Schlauchstück 16 zunehmend abflacht. Durch Loslassen des Handsteuerventilhebels kann die Platte 14 in jeder beliebigen Neigungsstellung festgelegt werden. Der volle Schwenkwinkel beträgt im Ausführungsbeispiel 30°. Die Platte 14 bildet dann mit der Vertikalen einen Winkel von 45°. Diese Stellung ist in FIG. 2 dargestellt. In dieser Flachneigungsstellung liegt die Stützwand 44 im wesentlichen horizontal. Das gleiche gilt für die Bodenränder der Seitenwände 20 der Platte 14 und eine Versteifungswand 50 des Halters 14 ruht auf dem oberen Rand der Rückwand 28 des Fußes 12. Das Schlauchstück 16 ist in dieser Stellung der Platte 14 entlastet, da die Platte 14 am Fuß 12 mechanisch abgestützt ist.In the state filled with pressurized water, the hose piece takes 16 a cylindrical shape and is supported both on the bottom 24 and on the rear intermediate wall 32 of the foot 12 and presses the plate 14 by means of the support wall 44 into a steep position in which the plate 14 is at an angle of approximately 15 with the vertical ° forms. If the pressure water is let out of the hose section 16, the plate 14 swings slowly backwards, the hose section 16 becoming increasingly flattened. By releasing the manual control valve lever, the plate 14 can be fixed in any inclination position. The full swivel angle is 30 ° in the exemplary embodiment. The plate 14 then forms an angle of 45 ° with the vertical. This position is shown in FIG. 2 shown. In this flat inclination position, the support wall 44 is essentially horizontal. The same applies to the bottom edges of the side walls 20 of the plate 14 and a stiffening wall 50 of the holder 14 rests on the upper edge of the rear wall 28 of the foot 12. The tube piece 16 is relieved in this position of the plate 14, since the plate 14 on the foot 12 is mechanically supported.

Eine Gaszugfeder 48 spannt die Platte 14 in Richtung dieser Flachneigungsstellung vor (vgl. FIG. 2), sodaß Platte 14 und Fuß 12 nicht relativ zueinander frei verschwenkbar sind, was beispielsweise auch beim Transport stören würde. Außerdem sichert diese Zugfeder 48 die Platte 14 auch in den durch die Druckwasserfüllung im Schlauchstück 16 vorgegebenen Zwischenstellungen.A gas tension spring 48 biases the plate 14 in the direction of this flat inclination position (cf. FIG. 2), so that plate 14 and foot 12 cannot be pivoted freely relative to one another, which would also interfere with transportation, for example. In addition, this tension spring 48 secures the plate 14 even in the intermediate positions predetermined by the pressurized water filling in the hose section 16.

Claims (7)

  1. A backrest for a bathtub lift assembly with a plate (14), as the chair back, pivotable on a lifting plate of the lift assembly, and an adjusting device adjusting the inclination of the plate (14) and having a hose member (16) closed at the ends, fillable with pressurised water, arranged on the back of the plate, made of substantially non-expandable material and connected to a multiway manual control valve, characterized in that the plate (14) is mounted on a foot (12) attachable to the lifting plate of the lifting assembly, that a chamber, at least most of which is closed, is formed between the plate (14) and the foot (12), and the hose member (16) is positioned so as to be mounted securely in the chamber at a distance from the plate (14) and its bottom is supported on the foot (12), and that the back of the plate (14) has a supporting wall (44) extending parallel to the plate pivotal axle (34) at a distance therefrom at least over the largest part of the length of the hose member (16) and with its bottom, at least in the central region, having a concave arch (46) having a wide surface resting on the hose member (16) and being adapted to the diameter of the hose member (16) filled with pressurised water at the bottom at least in the central area.
  2. A backrest according to Claim 1, characterised in that the supporting wall (44) is connected to two downwardly pointing side walls (20) of the plate (14).
  3. A backrest according to one of the Claims 1 or 2, characterised in that the tangential plane of the resting surface of the supporting wall (44) intersects at least approximately the axle of the pivoting bearing (34) of the plate (14).
  4. A backrest according to any one of Claims 1 to 3, characterized in that the chamber in the region of the foot is bounded by an upright back wall (28) and also upright side walls (26), and that a box opening downwards is provided on the rear side of the plate (14) and its side walls (20) and back wall (22) point downwards and overlap those of the foot (12) at least in the gradual sloping position of the plate (14).
  5. A backrest according to Claim 4, characterized in that the box of the plate (14) opening downwards covers the outside of the side walls (26) and the back wall (28) of the foot (12).
  6. A backrest according to any one of Claims 1-5, characterised in that the resting surface of the supporting wall (44) is substantially horizontal in the gradual sloping position of the plate (14).
  7. A backrest according to any one of Claims 4-6, characterized in that the back of the plate (14) has a partition wall (50) having a stop surface arranged at a distance from the plate (14) and supported in the gradual sloping position of the plate (14) on one of the upright walls (26, 28) of the foot (12).
EP92122107A 1992-12-29 1992-12-29 Backrest for a bathtub lift assembly Expired - Lifetime EP0622042B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP92122107A EP0622042B1 (en) 1992-12-29 1992-12-29 Backrest for a bathtub lift assembly
DE59205324T DE59205324D1 (en) 1992-12-29 1992-12-29 Back support for lift devices that can be used in bathtubs
AT92122107T ATE133842T1 (en) 1992-12-29 1992-12-29 BACK SUPPORT FOR LIFT DEVICES USED IN BATHTUBS
DK92122107.3T DK0622042T3 (en) 1992-12-29 1992-12-29 Backrest for lifting device used in bathtub
ES92122107T ES2083062T3 (en) 1992-12-29 1992-12-29 BACK FOR LIFTING APPLIANCES USABLE IN BATHTUBS.
US08/173,647 US5381565A (en) 1992-12-29 1993-12-22 Back rest for a lifting apparatus
CA002112328A CA2112328A1 (en) 1992-12-29 1993-12-23 Back rest for a lifting apparatus
JP5348416A JP2578723B2 (en) 1992-12-29 1993-12-27 Backrest of bathtub fitting lifting device
GR960400873T GR3019485T3 (en) 1992-12-29 1996-04-02 Backrest for a bathtub lift assembly.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92122107A EP0622042B1 (en) 1992-12-29 1992-12-29 Backrest for a bathtub lift assembly

Publications (2)

Publication Number Publication Date
EP0622042A1 EP0622042A1 (en) 1994-11-02
EP0622042B1 true EP0622042B1 (en) 1996-02-07

Family

ID=8210339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92122107A Expired - Lifetime EP0622042B1 (en) 1992-12-29 1992-12-29 Backrest for a bathtub lift assembly

Country Status (9)

Country Link
US (1) US5381565A (en)
EP (1) EP0622042B1 (en)
JP (1) JP2578723B2 (en)
AT (1) ATE133842T1 (en)
CA (1) CA2112328A1 (en)
DE (1) DE59205324D1 (en)
DK (1) DK0622042T3 (en)
ES (1) ES2083062T3 (en)
GR (1) GR3019485T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769285B1 (en) 1995-07-31 1997-05-28 Schmidt &amp; Lenhardt GmbH &amp; Co. oHG Bath lift and method for the extension of the device
ATE166570T1 (en) * 1996-03-14 1998-06-15 Schmidt & Lenhardt Gmbh & Co BACK SUPPORT FOR BATH LIFT
DE19720963B4 (en) * 1996-05-22 2007-02-22 A & S Bäder GmbH Back support for bathtubs
US5926876A (en) * 1996-11-19 1999-07-27 Compacta International, Ltd. Surgical operating table accessory for shoulder procedures
US6643866B1 (en) 2002-10-02 2003-11-11 Robert L. Stewart Toilet-seat positioner
ES2244300B1 (en) * 2003-11-21 2007-09-16 Julio Fernando Garrido Corchon ADAPTER FOR GYNECOLOGICAL POSITION ON ANY FLAT.
CN107126321A (en) * 2016-06-07 2017-09-05 许畅 Care appliances

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781928A (en) * 1971-04-05 1974-01-01 Erik Pettersson Device for raising the head end and/or foot end of a bed
CH538859A (en) * 1971-04-19 1973-07-15 Veenendaal & Co Actuating drive arrangement on a bed frame having a folding part
US3931653A (en) * 1974-09-30 1976-01-13 Bien Jack M Power operated back rest
US4185342A (en) * 1978-06-16 1980-01-29 Young Raymond E Portable, adjustable backrest for beds and the like
EP0073757A4 (en) * 1981-03-09 1984-04-24 Harry H Herman Jr Improved bathtub cushion lift assembly.
GB2097250B (en) * 1981-04-29 1985-02-27 Garman David Edmund Talbot Apparatus for supporting disabled persons
DE3337536A1 (en) * 1983-10-14 1985-05-02 Wolfgang 7970 Leutkirch Dentler LIFTING DEVICE FOR A BATHTUB INSERT
DE3400804A1 (en) * 1984-01-12 1985-07-18 Daniel Kollbrunn Küng DEVICE FOR ADJUSTING THE BED OF A BED IN THE AREA OF THE HEAD OR FOOT
DE3546578C2 (en) * 1985-03-07 1988-10-06 Peter 7989 Eisenharz De Schmidt Bath tub insert
US4782542A (en) * 1985-11-04 1988-11-08 Michiko Tsuchiya Pneumatic mat with safety apparatus
US5014378A (en) * 1989-11-07 1991-05-14 Michiko Tsuchiya Pneumatic mat with safety apparatus
JPH05503861A (en) * 1990-01-30 1993-06-24 アンスコーム―ブラック、ウィリアム・アレクサンダー・ブルース bath seat assembly

Also Published As

Publication number Publication date
ATE133842T1 (en) 1996-02-15
JPH06304224A (en) 1994-11-01
ES2083062T3 (en) 1996-04-01
DE59205324D1 (en) 1996-03-21
JP2578723B2 (en) 1997-02-05
GR3019485T3 (en) 1996-07-31
EP0622042A1 (en) 1994-11-02
US5381565A (en) 1995-01-17
DK0622042T3 (en) 1996-03-18
CA2112328A1 (en) 1994-06-30

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