EP0619106B1 - Lift insertable in a bathtub - Google Patents

Lift insertable in a bathtub Download PDF

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Publication number
EP0619106B1
EP0619106B1 EP93103521A EP93103521A EP0619106B1 EP 0619106 B1 EP0619106 B1 EP 0619106B1 EP 93103521 A EP93103521 A EP 93103521A EP 93103521 A EP93103521 A EP 93103521A EP 0619106 B1 EP0619106 B1 EP 0619106B1
Authority
EP
European Patent Office
Prior art keywords
valve
servo
manual control
lift according
valves
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
EP93103521A
Other languages
German (de)
French (fr)
Other versions
EP0619106A1 (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 EP93103521A priority Critical patent/EP0619106B1/en
Application filed by Schmidt and Lenhardt GmbH and Co OHG filed Critical Schmidt and Lenhardt GmbH and Co OHG
Priority to ES93103521T priority patent/ES2096119T3/en
Priority to AT93103521T priority patent/ATE146671T1/en
Priority to DE59304901T priority patent/DE59304901D1/en
Priority to US08/199,384 priority patent/US5392474A/en
Priority to ZA941227A priority patent/ZA941227B/en
Priority to AU56476/94A priority patent/AU663457B2/en
Priority to CA002116931A priority patent/CA2116931A1/en
Priority to JP6062063A priority patent/JP2527408B2/en
Publication of EP0619106A1 publication Critical patent/EP0619106A1/en
Application granted granted Critical
Publication of EP0619106B1 publication Critical patent/EP0619106B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/22—Lifting frames, e.g. for lifting vehicles; Platform lifts with tiltable platforms
    • 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
    • A61G7/1013—Lifting of patients by
    • A61G7/1021—Inflatable cushions
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/22—Lazy-tongs mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated

Definitions

  • a bathtub usable lifter for the disabled which has a floor frame, a lifting plate, a guide frame connecting this to the floor frame, and a hydraulic lifting device with a valve device arranged below the floor level of the lifting plate, and a hand control unit connected to it.
  • Such a lifter is known from DE-A-3 908 231.
  • the hand control unit has a slide which is connected to the valve device by means of a Bowden cable.
  • Two working valves of the valve device lie in axial alignment in a bore in which a tappet slide is slidably mounted, into which a double-armed lever engages, at the other end of which the soul of the Bowden cable is attached.
  • the balls of the working valves are prestressed in the closed position by means of springs and are additionally loaded by the supply pressure in the line system.
  • the slide of the manual control valve must overcome the closing forces of the balls of the working valves in both directions in order to move them to the open position. For a disabled person who cannot always fully control his movements, the operation is problematic.
  • the known valve device only enables the lifting process and the lowering process of the lifting plate to be controlled. Any other hydraulic drives would require a separate valve device with an additional manual control valve.
  • EP-A-0622042 falling under Article 54 (3) shows a lifter with a backrest, the inclination of which can be changed by means of a hydraulic swivel device.
  • a second valve device with a separate manual control valve would therefore be required for its actuation.
  • the object of the invention is to further develop the lifter of the type mentioned in such a way that the actuating forces on the hand control valve from the actuating forces in the Working valves are made independent, so that even large-area working valves with very low forces can be opened on the hand control valve.
  • the manual control device is connected to the valve device by means of a plurality of flexible hoses and has a number of essentially identically designed manually operable servo valves, each of which has a control chamber on one side of a valve seat, in which opens one of the hoses, that a pressure chamber is formed in each servo valve on the other side of the valve seat, that the pressure chambers of all servo valves are connected to a common hose of the plurality of hoses, that all servo valves are hydraulically and / or mechanically pretensioned in the closed position, that the control chamber of each servo valve is connected in its closed position to a drain line and that each servo valve has a manually operable actuator which from a rest position against the action of a restoring force in one or more A Working positions is movable, in which or which the pressure chamber communicates with the control chamber, but this is blocked off from the drain line.
  • the servo valves can be made very small and therefore only require extremely low actuating forces.
  • the valve device can comprise any number of working valves. The number depends on the number of hydraulic drives on the lifter. The number of servo valves in the hand control unit corresponds to the number of working valves. Any number of hydraulic drives can be controlled with one and the same hand control device.
  • the manual actuator has a spherical cap-shaped bearing part which is pivotally mounted on complementary spherical surfaces of the housing of the hand control device in at least two mutually perpendicular planes, the lifting plate being moved up and down in one pivot plane and the inclination of the backrest being changed in the other plane.
  • This bearing part either has a circumferentially closed outer flange or at least four circumferentially distributed radial arms. In the neutral position of the manual actuator, the four spring-actuated actuators press against this outer flange or the radial arms on the end face, so that the actuator is held in its central position.
  • a lifter 10 which can be used in bathtubs consists of a floor frame or frame 13, on which a scissor arm-like guide frame 14 is arranged, which carries a lifting plate 16, a lifting device 12 in the form of an end-closed pressure-resistant hose extending between this and the floor frame 13.
  • a backrest 18 is detachably arranged on the lifting plate 16 by means of a swivel fitting.
  • a hydraulic swivel device 19 is used to adjust the inclination of the backrest 18.
  • a multi-valve housing 20 On the underside of the lifting plate 16 is a multi-valve housing 20, into which a pressurized water supply line 22, a connecting hose 24 leading to the lifting hose 12, a connecting hose 26 leading to the pivoting device 19 and a spiral cable 28 open, at the end of which a hand control device 30 is arranged.
  • the multi-valve housing 20 contains four working valves which are controlled hydraulically. Manual controls on the multi-valve housing 20 are therefore omitted.
  • the lifting plate 18 does not require any openings in the area of the multi-valve housing 20.
  • the hand control device 30 consists of a two-part housing 32 in which there is a servo valve device with four servo valves 34, the axes of which are perpendicular to the bottom surface of the housing 32 and intersect the corners of a square.
  • the spiral cable 28 contains six thin hoses, namely four control hoses 36, a pressurized water supply hose 38 and an emptying hose 40.
  • the six hoses are sheathed by the spiral cable 28, which has a length of approximately 1.5 meters.
  • the drain hose 40 could be omitted, in which case the cavities formed between the outer surfaces of the hoses 36, 38 and the inner surface of the spiral cable 28 ensure the water backflow into the multi-valve housing 20.
  • the spiral cable has a rotatable screw sleeve in which a coupling insert is located , to which the six lines, each with a hole, are connected are.
  • a coupling insert On the multi-valve housing 20 there is a complementary counter-coupling piece into which the coupling insert of the cable 28 can be inserted.
  • the screw sleeve is then screwed onto the counterpart and the six lines 36, 38, 40 of the cable 28 are pressure-tightly connected to a corresponding channel system in the multi-valve housing 20.
  • the four control hoses 36 each lead to one of the four working valves in the multi-valve housing.
  • FIGURES 2 and 3 show control unit 30 in actual size.
  • the servo valve device in the hand control unit 30 comprises a base plate 42, which is part of the lower housing part, furthermore a middle plate 44 and a cover plate 46.
  • the three plates 42-46 are screwed together with a sealing washer by means of a bolt 48.
  • the four control hoses 36 and the pressure water supply hose 38 open in a row side by side (FIG. 6) in the middle plate at the same height.
  • Three coaxial longitudinal bores 48 of the hoses 36 open directly into cylinder chambers 50 of the servo valves 34.
  • the fourth longitudinal bore 52 is connected to the cylinder bore 50 of the fourth control hose 36 via a transverse channel 54.
  • each cylinder bore 50 there is an insert sleeve 56 in which a cylindrical actuator 58 with radial play is arranged.
  • a central housing head 62 has four pot-like depressions near its outer circumference, which engage in the cylindrical bores 50 and in turn guide the actuators 58.
  • the housing head 62 has a hemispherical bearing surface 64 for a circularly contoured bearing plate 66, which is formed in the central central region with a spherical cap-shaped counter surface 68.
  • the bearing plate 66 carries an actuating lever 70 which is vertical when the bearing plate 66 is horizontal and which extends through a link insert 72 and protrudes upward from the housing.
  • the link insert 72 has two intersecting guide slots 74, which limit the possibility of movement of the lever 70 to the longitudinal plane and the transverse plane.
  • the four actuators 58 are each pressed by means of a spring 76 upwards into contact with the bearing plate 66, which is thus held in the horizontal position. A compressible ring on the top stabilizes this position.
  • chambers 80 with an enlarged diameter are formed between the base plate 42 and the middle plate 44, in which there are spherical valve bodies 82 which are pressed against a valve seat 86 by means of springs 84.
  • the bottom plate 42 has a circumferential groove 88 which the chambers 80 together connects and into which in turn a longitudinal groove 90 (FIG. 6) opens, which is connected to the pressurized water supply hose 38 via a vertical bore 92.
  • the pressure chambers 80 are thus constantly filled with pressurized water.
  • the actuators 58 have axial bores which open at the end face at the bottom.
  • These axial bores are connected via radial bores to the annular gap between actuator 58 and insert sleeve 56, and these annular spaces communicate via at least one radial bore 94 in insert sleeve 56 and four radial bores 96 in housing cover plate 46 with the annular chamber 98 formed therein.
  • the drain line 40 is inserted into the servo valve housing in the area of the cover plate 46 and is connected to the drain channel system via an axial bore 100.
  • the control chambers 102 above the valve seat 86 are therefore depressurized, since they constantly communicate with the drainage channel system, which in turn connects the drainage line 40 to the multi-valve housing 20.
  • this drain line is brought up to a housing mouth, so that this line can constantly drain into the bathtub.
  • the spring 76 of the actuated actuator 58 ensures that the actuator is reset, as a result of which the closing body 82 blocks the corresponding control hose 36 from the pressurized water supply and at the same time connects it to the drain line 40.
  • the pressurized water that has entered the working valve in the multi-valve housing 20 is thus pressed back into the manual control device 30 via the control line 36, which is ensured by a mechanical spring in the working valve.
  • the water that is pushed back then passes through the drain line 40 again into the multi-way valve 20 and runs from there into the tub.
  • the working valve closes.
  • the hand control lever 70 has returned to its neutral position.
  • the manual control valve 30 has a narrow elongated handle 104 and a widened and raised head 106.
  • the bottom plate 42 of the housing 30 is extended beyond the upper housing part.
  • a suspension eye 108 is formed in this extension part.
  • the hand control device 30 has a length of approximately 100 mm to 110 mm without a suspension eye 108.
  • the width of the handle 104 is 30 mm.
  • FIGURES 2 and 3 show the hand control device 30 in natural size.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Nursing (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

The lifting plate (16) of a lifter (10) can be moved up and down by means of a hydraulically actuated lifting device (12). The back rest (18) can be pivoted forwards and backwards by means of a pivoting device (19) which is likewise operated hydraulically. Both working devices (12, 19) are connected to a multi-valve housing (20) which is located below the lifting plate (16) and does not have any manually operated devices. By contrast, the actuation takes place hydraulically via remote control. For this purpose, a manual control unit (30) having a number of in-built servo valves is connected to the multi-valve housing (20) via a flexible cable (28) which comprises a number of thin control tubes and a pressure water supply tube. <IMAGE>

Description

In eine Badewanne einsetzbarer Lifter für Behinderte, der ein Bodengestell, eine Hubplatte, ein diese mit dem Bodengestell verbindendes Führungsgestell, sowie eine hydraulische Hubvorrichtung mit einer unterhalb der Bodenebene der Hubplatte angeordneten Ventileinrichtung sowie ein, an diese angeschlossenes Handsteuergerät aufweist.In a bathtub usable lifter for the disabled, which has a floor frame, a lifting plate, a guide frame connecting this to the floor frame, and a hydraulic lifting device with a valve device arranged below the floor level of the lifting plate, and a hand control unit connected to it.

Ein derartiger Lifter ist aus der DE-A-3 908 231 bekannt. Das Handsteuergerät weist einen Schieber auf, der mittels eines Bowdenzuges an die Ventileinrichtung angeschlossen ist. Zwei Arbeitsventile der Ventileinrichtung liegen in axialer Ausfluchtung in einer Bohrung, in der ein Stößelschieber verschiebbar gelagert ist, in den ein doppelarmiger Hebel eingreift, an dessen anderem Ende die Seele des Bowdenzuges befestigt ist. Die Kugeln der Arbeitsventile sind mittels Federn in Schließstellung vorgespannt und werden zusätzlich vom Versorgungsdruck im Leitungssystem belastet. Der Schieber des Handsteuerventils muß in beiden Richtungen die Schließkräfte der Kugeln der Arbeitsventile überwinden, um sie jeweils in die Offenstellung zu verschieben. Für einen Behinderten, der seine Bewegungen nicht immer vollstänig kontrollieren kann, ist die Betätigung daher problematisch. Außerdem ermöglicht die bekannte Ventileinrichtung nur das Ansteuern des Hubvorganges und des Absenkvorganges der Hubplatte. Etwaige weitere hydraulische Antriebe würden eine eigene Ventileinrichtung mit einem weiteren Handsteuerventil erfordern.Such a lifter is known from DE-A-3 908 231. The hand control unit has a slide which is connected to the valve device by means of a Bowden cable. Two working valves of the valve device lie in axial alignment in a bore in which a tappet slide is slidably mounted, into which a double-armed lever engages, at the other end of which the soul of the Bowden cable is attached. The balls of the working valves are prestressed in the closed position by means of springs and are additionally loaded by the supply pressure in the line system. The slide of the manual control valve must overcome the closing forces of the balls of the working valves in both directions in order to move them to the open position. For a disabled person who cannot always fully control his movements, the operation is problematic. In addition, the known valve device only enables the lifting process and the lowering process of the lifting plate to be controlled. Any other hydraulic drives would require a separate valve device with an additional manual control valve.

So zeigt die unter Artikel 54 (3) fallende EP-A-0622042 einen Lifter mit Rückenlehne, deren Neigung mittels einer hydraulischen Schwenkeinrichtung veränderbar ist. Für deren Betätigung wäre also eine zweite Ventileinrichtung mit separatem Handsteuerventil erforderlich.For example, EP-A-0622042 falling under Article 54 (3) shows a lifter with a backrest, the inclination of which can be changed by means of a hydraulic swivel device. A second valve device with a separate manual control valve would therefore be required for its actuation.

Aufgabe der Erfindung ist es, den Lifter der eingangs genannten Art dahingehend weiter auszubilden, daß die Stellkräfte am Handsteuerventil von den Betätigungskräften in den Arbeitsventilen unabhängig gemacht werden, so daß auch großflächige Arbeitsventile mit sehr niedrigen Kräften am Handsteuerventil geöffnet werden können.The object of the invention is to further develop the lifter of the type mentioned in such a way that the actuating forces on the hand control valve from the actuating forces in the Working valves are made independent, so that even large-area working valves with very low forces can be opened on the hand control valve.

Diese Aufgabe wird erfindungsgemäß bei einem Lifter der eingangs genannten Art dadurch gelöst, daß das Handsteuergerät mittels einer Mehrzahl flexibler Schläuche an die Ventileinrichtung angeschlossen ist und eine Anzahl im wesentlichen gleich ausgebildeter handbetätigbarer Servoventile aufweist, die auf einer Seite eines Ventilsitzes je eine Steuerkammer aufweisen, in die einer der Schläuche mündet, daß in jedem Servoventil auf der anderen Seite des Ventilsitzes eine Druckkammer gebildet ist, daß die Druckkammern aller Servoventile an einen gemeinsamen Schlauch der Mehrzahl von Schläuchen angeschlossen sind, daß alle Servoventile hydraulisch und/oder mechanisch in Schließstellung vorgespannt sind, daß die Steuerkammer jedes Servoventiles in dessen Schließstellung an eine Entleerungsleitung angeschlossen ist und daß jedes Servoventil ein von Hand betätigbares Stellglied aufweist, das aus einer Ruhestellung gegen die Wirkung einer Rückstellkraft in eine oder mehrere Arbeitsstellungen bewegbar ist, in welcher oder welchen die Druckkammer mit der Steuerkammer kommuniziert, diese jedoch gegenüber der Entleerungsleitung abgesperrt ist.This object is achieved according to the invention in a lifter of the type mentioned at the outset in that the manual control device is connected to the valve device by means of a plurality of flexible hoses and has a number of essentially identically designed manually operable servo valves, each of which has a control chamber on one side of a valve seat, in which opens one of the hoses, that a pressure chamber is formed in each servo valve on the other side of the valve seat, that the pressure chambers of all servo valves are connected to a common hose of the plurality of hoses, that all servo valves are hydraulically and / or mechanically pretensioned in the closed position, that the control chamber of each servo valve is connected in its closed position to a drain line and that each servo valve has a manually operable actuator which from a rest position against the action of a restoring force in one or more A Working positions is movable, in which or which the pressure chamber communicates with the control chamber, but this is blocked off from the drain line.

Im Gegensatz zu den Arbeitsventilen, die einen ausreichend großen Querschnitt haben müssen, können die Servoventile sehr klein ausgebildet sein und benötigen deswegen auch nur äußerst geringe Stellkräfte. Die Ventileinrichtung kann eine beliebige Zahl von Arbeitsventilen umfassen. Die Zahl richtet sich nach der Anzahl der hydraulischen Antriebe des Lifters. Die Zahl der Servoventile im Handsteuergerät entspricht der Zahl der Arbeitsventile. Mit ein und demselben Handsteuergerät läßt sich eine beliebige Zahl von hydraulischen Antrieben ansteuern.In contrast to the work valves, which have to have a sufficiently large cross-section, the servo valves can be made very small and therefore only require extremely low actuating forces. The valve device can comprise any number of working valves. The number depends on the number of hydraulic drives on the lifter. The number of servo valves in the hand control unit corresponds to the number of working valves. Any number of hydraulic drives can be controlled with one and the same hand control device.

Gemäß einer Ausgestaltung der Erfindung sind vier Servoventile im Handsteuergerät achsparallel angeordnet und ihre Achsen schneiden die Ecken eines Quadrates. Das Handbetätigungsorgan weist ein kugelkalottenförmiges Lagerteil auf, das an komplementären Kugeloberflächen des Gehäuses des Handsteuergerätes in mindestens zwei zueinander senkrechten Ebenen schwenkbar gelagert ist, wobei in der einen Schwenkebene die Hubplatte auf- und abbewegt und in der anderen Ebene die Neigung der Rückenlehne verändert wird. Dieses Lagerteil hat entweder einen umfangsgeschlossenen Außenflansch oder mindestens vier umfangsverteilte Radialarme. In der Neutralstellung des Handbetätigungsorgans drücken die vier federbetätigten Stellorgane stirnseitig gegen diesen Außenflansch oder die Radialarme, so daß das Betätigungsorgan in seiner Mittelstellung gehalten wird.According to one embodiment of the invention, four servo valves are arranged axially parallel in the hand control device and their axes intersect the corners of a square. The manual actuator has a spherical cap-shaped bearing part which is pivotally mounted on complementary spherical surfaces of the housing of the hand control device in at least two mutually perpendicular planes, the lifting plate being moved up and down in one pivot plane and the inclination of the backrest being changed in the other plane. This bearing part either has a circumferentially closed outer flange or at least four circumferentially distributed radial arms. In the neutral position of the manual actuator, the four spring-actuated actuators press against this outer flange or the radial arms on the end face, so that the actuator is held in its central position.

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 schematische Seitenansicht eines Lifters mit hydraulischen Betätigungsvorrichtungen sowie einem Handsteuergerät,
FIG. 2
eine Draufsicht auf das Handsteuergerät,
FIG. 3
eine Seitenansicht des Handsteuergerätes,
FIG. 4
eine Längsschnittansicht durch das Handsteuergerät,
FIG. 5
eine Längsschnittansicht durch das Handsteuergerät im Bereich einer Servoventileinrichtung in größerem Maßstab und
FIG. 6
eine Querschnittansicht längs der Linie 6-6 der FIGUR 5.
It shows:
FIG. 1
is a schematic side view of a lifter with hydraulic actuators and a Hand control unit,
FIG. 2nd
a plan view of the hand control device,
FIG. 3rd
a side view of the hand control device,
FIG. 4th
2 shows a longitudinal sectional view through the hand control device,
FIG. 5
a longitudinal sectional view through the hand control device in the area of a servo valve device on a larger scale and
FIG. 6
a cross-sectional view taken along line 6-6 of FIGURE 5.

Ein in Badewannen einsetzbarer Lifter 10 besteht aus einem Bodenrahmen oder-gestell 13, auf dem ein scherenarmartiges Führungsgestell 14 angeordnet ist, das eine Hubplatte 16 trägt, wobei sich zwischen dieser und dem Bodenrahmen 13 eine Hubvorrichtung 12 in Form eines endseitig geschlossenen druckfesten Schlauches erstreckt. Auf der Hubplatte 16 ist eine Rückenlehne 18 mittels eines Schwenkbeschlages lösbar angeordnet. Eine hydraulische Schwenkvorrichtung 19 dient zur Neigungsverstellung der Rückenlehne 18.A lifter 10 which can be used in bathtubs consists of a floor frame or frame 13, on which a scissor arm-like guide frame 14 is arranged, which carries a lifting plate 16, a lifting device 12 in the form of an end-closed pressure-resistant hose extending between this and the floor frame 13. A backrest 18 is detachably arranged on the lifting plate 16 by means of a swivel fitting. A hydraulic swivel device 19 is used to adjust the inclination of the backrest 18.

An der Unterseite der Hubplatte 16 ist ein Mehrventilgehäuse 20 befestigt, in das eine Druckwasserversorgungsleitung 22, ein zum Hubschlauch 12 führender Verbindungsschlauch 24, ein zur Schwenkvorrichtung 19 führender Verbindungsschlauch 26 und ein Spiralkabel 28 münden, an dessen Ende ein Handsteuergerät 30 angeordnet ist. Das Mehrventilgehäuse 20 enthält vier Arbeitsventile, die hydraulisch angesteuert werden. Handbedienungselemente am Mehrventilgehäuse 20 entfallen also. Die Hubplatte 18 benötigt im Bereich des Mehrventilgehäuses 20 keinerlei Durchbrüche.On the underside of the lifting plate 16 is a multi-valve housing 20, into which a pressurized water supply line 22, a connecting hose 24 leading to the lifting hose 12, a connecting hose 26 leading to the pivoting device 19 and a spiral cable 28 open, at the end of which a hand control device 30 is arranged. The multi-valve housing 20 contains four working valves which are controlled hydraulically. Manual controls on the multi-valve housing 20 are therefore omitted. The lifting plate 18 does not require any openings in the area of the multi-valve housing 20.

Das Handsteuergerät 30 besteht aus einem zweiteiligen Gehäuse 32, in dem sich eine Servoventileinrichtung mit vier Servoventilen 34 befinden, deren Achsen auf der Bodenfläche des Gehäuses 32 senkrecht stehen und die Ecken eines Quadrates schneiden. Das Spiralkabel 28 enthält sechs dünne Schläuche, nämlich vier Steuerschläuche 36, einen Druckwasserversorgungsschlauch 38 und einen Entleerungsschlauch 40. Die sechs Schläuche werden von dem Spiralkabel 28 ummantelt, das eine Länge von ca. 1,5 Metern hat. Der Entleerungsschlauch 40 könnte entfallen, wobei dann die zwischen den Außenflächen der Schläuche 36,38 und der Innenfläche des Spiralkabels 28 gebildeten Hohlräume für den Wasserrückfluß in das Mehrventilgehäuse 20 sorgen.Am lifterseitigen Ende hat das Spiralkabel eine drehbare Schraubmuffe, in der sich ein Kupplungseinsatz befindet, an den die sechs Leitungen mit jeweils einer Bohrung angeschlossen sind. Am Mehrventilgehäuse 20 befindet sich ein komplementäres Gegenkupplungsstück, in das der Kupplungseinsatz des Kabels 28 eingesteckt werden kann. Die Schraubhülse wird dann auf das Gegenstück aufgeschraubt und die sechs Leitungen 36, 38, 40 des Kabels 28 sind mit einem entsprechenden Kanalsystem im Mehrventilgehäuse 20 druckdicht verbunden. Die vier Steuerschläuche 36 führen jeweils zu einem der vier Arbeitsventile im Mehrventilgehäuse. Die FIGUREN 2 und 3 zeigen das Steuergerät 30 in tatsächlicher Größe.The hand control device 30 consists of a two-part housing 32 in which there is a servo valve device with four servo valves 34, the axes of which are perpendicular to the bottom surface of the housing 32 and intersect the corners of a square. The spiral cable 28 contains six thin hoses, namely four control hoses 36, a pressurized water supply hose 38 and an emptying hose 40. The six hoses are sheathed by the spiral cable 28, which has a length of approximately 1.5 meters. The drain hose 40 could be omitted, in which case the cavities formed between the outer surfaces of the hoses 36, 38 and the inner surface of the spiral cable 28 ensure the water backflow into the multi-valve housing 20. At the end on the lifter side, the spiral cable has a rotatable screw sleeve in which a coupling insert is located , to which the six lines, each with a hole, are connected are. On the multi-valve housing 20 there is a complementary counter-coupling piece into which the coupling insert of the cable 28 can be inserted. The screw sleeve is then screwed onto the counterpart and the six lines 36, 38, 40 of the cable 28 are pressure-tightly connected to a corresponding channel system in the multi-valve housing 20. The four control hoses 36 each lead to one of the four working valves in the multi-valve housing. FIGURES 2 and 3 show control unit 30 in actual size.

Die Servoventileinrichtung im Handsteuergerät 30 umfaßt eine Bodenplatte 42, die Bestandteil des Gehäuseunterteils ist, weiterhin eine Mittelplatte 44 und eine Deckplatte 46. Die drei Platten 42-46 sind unter Zwischenlage von Dichtungsscheiben mittels eines Bolzens 48 verschraubt. Die vier Steuerschläuche 36 und der Druckwasserversorgungsschlauch 38 münden in einer Reihe nebeneinanderliegend (FIG. 6) in der Mittelplatte auf gleicher Höhe. Drei koaxiale Längsbohrungen 48 der Schläuche 36 münden direkt in Zylinderkammern 50 der Servoventile 34. Die vierte Längsbohrung 52 ist über einen Querkanal 54 mit der Zylinderbohrung 50 des vierten Steuerschlauches 36 verbunden. In jeder Zylinderbohrung 50 befindet sich eine Einsatzhülse 56, in der ein zylindrisches Stellglied 58 mit Radialspiel angeordnet ist. An beiden Stirnseiten der Einsatzhülsen 56 befinden sich O-Dichtungen 60, die das Stellglied 58 gegenüber dem Ventilgehäuse und den Einsatzhülsen abdichten.Ein zentraler Gehäusekopf 62 hat nahe seinem Außenumfang vier topfartige Vertiefungen, die in die zylindrischen Bohrungen 50 eingreifen und ihrerseits die Stellglieder 58 führen. Im Mittelbereich hat der Gehäusekopf 62 eine halbkugelförmige Lagerfläche 64 für eine kreisförmig konturierte Lagerplatte 66, die im zentralen Mittelbereich mit einer kugelkalottenförmigen Gegenfläche 68 ausgebildet ist. Die Lagerplatte 66 trägt einen Betätigungshebel 70, der bei waagerechter Lagerplatte 66 senkrecht steht und durch einen Kulisseneinsatz 72 hindurchgreift und aus dem Gehäuse nach oben herausragt. Der Kulisseneinsatz 72 hat zwei einander kreuzende Führungsschlitze 74, die die Bewegungsmöglichkeit des Hebels 70 auf die Längsebene und die Querebene beschränken.The servo valve device in the hand control unit 30 comprises a base plate 42, which is part of the lower housing part, furthermore a middle plate 44 and a cover plate 46. The three plates 42-46 are screwed together with a sealing washer by means of a bolt 48. The four control hoses 36 and the pressure water supply hose 38 open in a row side by side (FIG. 6) in the middle plate at the same height. Three coaxial longitudinal bores 48 of the hoses 36 open directly into cylinder chambers 50 of the servo valves 34. The fourth longitudinal bore 52 is connected to the cylinder bore 50 of the fourth control hose 36 via a transverse channel 54. In each cylinder bore 50 there is an insert sleeve 56 in which a cylindrical actuator 58 with radial play is arranged. There are O seals 60 on both end faces of the insert sleeves 56, which seal the actuator 58 with respect to the valve housing and seal the insert sleeves. A central housing head 62 has four pot-like depressions near its outer circumference, which engage in the cylindrical bores 50 and in turn guide the actuators 58. In the central region, the housing head 62 has a hemispherical bearing surface 64 for a circularly contoured bearing plate 66, which is formed in the central central region with a spherical cap-shaped counter surface 68. The bearing plate 66 carries an actuating lever 70 which is vertical when the bearing plate 66 is horizontal and which extends through a link insert 72 and protrudes upward from the housing. The link insert 72 has two intersecting guide slots 74, which limit the possibility of movement of the lever 70 to the longitudinal plane and the transverse plane.

Die vier Stellglieder 58 werden je mittels einer Feder 76 nach oben in Anlage an die Lagerplatte 66 gedrückt, die somit in der Horizontalstellung gehalten wird. Ein deckseitiger kompressibler Ring stabilisiert diese Position.The four actuators 58 are each pressed by means of a spring 76 upwards into contact with the bearing plate 66, which is thus held in the horizontal position. A compressible ring on the top stabilizes this position.

In koaxialer Verlängerung der zylindrischen Bohrungen 50 sind zwischen Bodenplatte 42 und Mittelplatte 44 im Durchmesser vergrößerte Kammern 80 gebildet, in denen sich kugelförmige Ventilkörper 82 befinden, die mittels Federn 84 an einen Ventilsitz 86 gedrückt werden. Die Bodenplatte 42 hat eine Umfangsnut 88, die die Kammern 80 miteinander verbindet und in die ihrerseits eine Längsnut 90 (FIG. 6) mündet, welche über eine Vertikalbohrung 92 mit dem Druckwasserversorgungsschlauch 38 in Verbindung steht. Die Druckkammern 80 sind somit ständig mit Druckwasser gefüllt. Wie am besten aus FIGUR 5 hervorgeht, haben die Stellglieder 58 Axialbohrungen, die unten stirnseitig münden. Diese Axialbohrungen stehen über Radialbohrungen mit dem Ringspalt zwischen Stellglied 58 und Einsatzhülse 56 in Verbindung und diese Ringräume kommunizieren über mindestens eine Radialbohrung 94 in der Einsatzhülse 56 sowie vier Radialbohrungen 96 in der Gehäusedeckplatte 46 mit der in dieser gebildeten Ringkammer 98.In coaxial extension of the cylindrical bores 50, chambers 80 with an enlarged diameter are formed between the base plate 42 and the middle plate 44, in which there are spherical valve bodies 82 which are pressed against a valve seat 86 by means of springs 84. The bottom plate 42 has a circumferential groove 88 which the chambers 80 together connects and into which in turn a longitudinal groove 90 (FIG. 6) opens, which is connected to the pressurized water supply hose 38 via a vertical bore 92. The pressure chambers 80 are thus constantly filled with pressurized water. As can best be seen from FIGURE 5, the actuators 58 have axial bores which open at the end face at the bottom. These axial bores are connected via radial bores to the annular gap between actuator 58 and insert sleeve 56, and these annular spaces communicate via at least one radial bore 94 in insert sleeve 56 and four radial bores 96 in housing cover plate 46 with the annular chamber 98 formed therein.

Die Entleerungsleitung 40 wird im Bereich der Deckplatte 46 in das Servoventilgehäuse eingeführt und ist über eine Axialbohrung 100 an das Entleerungskanalsystem angeschlossen. In der Neutralstellung des Handhebels 70 sind somit die Steuerkammern 102 oberhalb des Ventilsitzes 86 drucklos, da sie ständig mit dem Entleerungskanalsystem kommunizieren, das seinerseits die Entleerungsleitung 40 an das Mehrventilgehäuse 20 anschließt. Im Inneren des Mehrventilgehäuses 20 wird diese Entleerungsleitung an eine Gehäusemündung herangeführt, sodaß diese Leitung ständig in die Badewanne entleeren kann.The drain line 40 is inserted into the servo valve housing in the area of the cover plate 46 and is connected to the drain channel system via an axial bore 100. In the neutral position of the hand lever 70, the control chambers 102 above the valve seat 86 are therefore depressurized, since they constantly communicate with the drainage channel system, which in turn connects the drainage line 40 to the multi-valve housing 20. In the interior of the multi-valve housing 20, this drain line is brought up to a housing mouth, so that this line can constantly drain into the bathtub.

Wird nun der Hebel 70 des Handsteuergerätes 30 in einer der vier Richtungen verschwenkt, bewegt sich das ensprechende Stellglied 58 gegen die Wirkung der Rückstellfeder 76 abwärts, stößt dabei auf den Ventilkörper 82 und sperrt die Steuerkammer 102 gegenüber der Entleerungsleitung 40 ab. Das Stellglied 58 hebt dann den Ventilkörper 82 vom Ventilsitz 86 ab, sodaß der entsprechende Steuerschlauch 36 mit der Druckkammer 80 verbunden wird. Über diesen Steuerschlauch 36 fließt dem angeschlossenen Arbeitsventil im Mehrventilgehäuse 20 Druckwasser zu, das somit vorübergehend öffnet und eine der beiden hydraulischen Vorrichtungen 12 oder 19 betätigt. Dieses Arbeitsventil ist solange offen, wie der Handsteuerhebel 70 am Handsteuergerät 30 in ausgeschwenkter Stellung gehalten wird. Läßt man den Hebel 70 los, sorgt die Feder 76 des betätigten Stellgliedes 58 für eine Rückstellung des Stellgliedes, wodurch der Schließkörper 82 den entsprechenden Steuerschlauch 36 von der Druckwasserversorgung absperrt und ihn gleichzeitig mit der Entleerungsleitung 40 verbindet. Das in das Arbeitsventil im Mehrventilgehäuse 20 gelangte Druckwasser wird somit über die Steuerleitung 36 in das Handsteuergerät 30 zurückgedrückt, wofür eine mechanische Feder im Arbeitsventil sorgt. Das zurückgedrückte Wasser gelangt dann über die Entleerungsleitung 40 erneut in das Mehrwegeventil 20 und läuft von dort in die Wanne ab. Das Arbeitsventil schließt somit. Der Handsteuerhebel 70 hat seine Neutralposition wieder angenommen.If the lever 70 of the hand control device 30 is now pivoted in one of the four directions, the corresponding one moves Actuator 58 against the action of the return spring 76 downward, strikes the valve body 82 and blocks the control chamber 102 from the drain line 40. The actuator 58 then lifts the valve body 82 from the valve seat 86, so that the corresponding control hose 36 is connected to the pressure chamber 80. Via this control hose 36, the connected working valve in the multi-valve housing 20 receives pressurized water, which thus opens temporarily and actuates one of the two hydraulic devices 12 or 19. This working valve is open as long as the hand control lever 70 is held in the swung-out position on the hand control device 30. If you let go of the lever 70, the spring 76 of the actuated actuator 58 ensures that the actuator is reset, as a result of which the closing body 82 blocks the corresponding control hose 36 from the pressurized water supply and at the same time connects it to the drain line 40. The pressurized water that has entered the working valve in the multi-valve housing 20 is thus pressed back into the manual control device 30 via the control line 36, which is ensured by a mechanical spring in the working valve. The water that is pushed back then passes through the drain line 40 again into the multi-way valve 20 and runs from there into the tub. The working valve closes. The hand control lever 70 has returned to its neutral position.

Zur äußeren Form des Handsteuerventils 30 ist zu bemerken, daß es einen schmalen länglichen Handgriff 104 und einen verbreiterten und erhöhten Kopf 106 aufweist. Die Bodenplatte 42 des Gehäuses 30 ist über das Gehäuseoberteil hinaus verlängert. In diesem Verlängerungsteil wird eine Aufhängeöse 108 gebildet. Das Handsteuergerät 30 hat ohne Aufhängeöse 108 eine Länge von ca. 100 mm bis 110 mm. Die Breite des Handgriffes 104 beträgt 30 mm. Die FIGUREN 2 und 3 zeigen das Handsteuergerät 30 in natürlicher Größe.Regarding the external shape of the manual control valve 30, it should be noted that that it has a narrow elongated handle 104 and a widened and raised head 106. The bottom plate 42 of the housing 30 is extended beyond the upper housing part. A suspension eye 108 is formed in this extension part. The hand control device 30 has a length of approximately 100 mm to 110 mm without a suspension eye 108. The width of the handle 104 is 30 mm. FIGURES 2 and 3 show the hand control device 30 in natural size.

Claims (10)

  1. A lift (10), insertable into a bathtub, for disabled people, comprising a base frame (13), a lifting plate (16), a guide frame (14) connecting the lifting plate (16) to the base frame (13), a hydraulic lifting device (12) having a valve arrangement (20) arranged below the bottom plane of the lifting plate (16), and a manual control unit (30) connected to the valve arrangement (20), characterised in that the manual control unit (30) is connected to the valve arrangement (20) by means of a plurality of flexible tubes and has a number of manually operable servo valves (34) of substantially like construction each having a control chamber (102) on one side of a valve seat (86), one of the tubes (34) [sic - 36] opening into the control chamber (102), in that a pressure chamber (88) [sic - 80] is formed in each servo valve (34) on the other side of the valve seat (86), in that the pressure chambers (80) of all the servo valves (34) are connected to a common tube (38) of the plurality of tubes (36, 38), in that all the servo valves (34) are hydraulically and/or mechanically loaded in the closed position, in that the control chamber (102) of each servo valve (34), in the closed position thereof, is connected to a discharge line (40), and in that each servo valve (34) has a manually operable actuating member (58) movable from a rest position against the action of a restoring force into one or more operating positions in which the pressure chamber (80) communicates with the control chamber (102), but the latter is sealed off from the discharge line (40).
  2. A lift according to claim 1, characterised in that a back rest (18) is pivotably arranged on the lifting plate (16) and is acted upon by a hydraulic pivoting device (19), in that the valve arrangement (20) has at least four operating valves and the manual control unit (30) has the same number of servo valves (34), and in that each operating valve is connected to a servo valve (34) by a separate control tube (36).
  3. A lift according to claim 1 or 2, characterised in that each servo valve (34) is formed so that its control chamber (102) is always connected either to the discharge line (40) or to the pressure chamber (80).
  4. A lift according to any one of claims 1 to 3, characterised in that each servo valve (34) has a spring-operated closing member (82) placeable against the valve seat (86) and movable by the actuating member (58), and in that the actuating member (58), when moved out of its rest position, seals the control chamber (102) off from the discharge line (40).
  5. A lift according to claim 4, characterised in that the actuating member (58) has an axial bore opening at the end and communicating with the discharge line (40) via a radial bore, in that the actuating member (58), in its rest position, is at a distance from the closing member (82), the axial bore of the actuating member (58) opening into the control chamber (102), and in that, when the servo valve (34) is operated, the actuating member (58) comes to rest against the closing member (82) during a first part of the stroke, thereby closing the end opening, and lifts the closing member (82) from the valve seat (86) during the remainder of the stroke.
  6. A lift according to any one of claims 2 to 5, characterised in that the four servo valves (34) are arranged so as to be axially parallel and their axes intersect the corners of a square.
  7. A lift according to any one of claims 1 to 6, characterised in that all the servo valves (34) have a common central manual control member (70) having a plurality of control positions (74).
  8. A lift according to claim 7, characterised in that the manual control member (70) has a cup-shaped bearing member (66) mounted on complementary spherical surfaces (68) of the casing (32) or of a casing head (62, 64) of the manual control unit (30) so as to be pivotable in at least two mutually perpendicular planes, and in that the bearing member (66) has a circumferentially closed outer flange or at least four radial arms distributed over the circumference and engaging over the ends of the actuating members (58) of the servo valves (34).
  9. A lift according to any one of claims 1 to 8, characterised in that the actuating member (58) of each servo valve (34) is loaded by means of a spring (76) in the rest position, and in that the non-operated manual control member (70) is held in the central position by the actuating members (58).
  10. A lift according to any one of claims 1 to 9, characterised in that the manual control member (70) comprises a pivoting lever projecting from the casing (32) of the manual control unit (30) and guided in a gate (74) having two guide slots intersecting one another at right angles.
EP93103521A 1993-03-05 1993-03-05 Lift insertable in a bathtub Expired - Lifetime EP0619106B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES93103521T ES2096119T3 (en) 1993-03-05 1993-03-05 LIFT USABLE IN A BATHTUB.
AT93103521T ATE146671T1 (en) 1993-03-05 1993-03-05 LIFTER THAT CAN BE FITTED IN A BATHTUB
DE59304901T DE59304901D1 (en) 1993-03-05 1993-03-05 Lifter that can be used in a bathtub
EP93103521A EP0619106B1 (en) 1993-03-05 1993-03-05 Lift insertable in a bathtub
US08/199,384 US5392474A (en) 1993-03-05 1994-02-18 Bathtub-insertable lifting apparatus
ZA941227A ZA941227B (en) 1993-03-05 1994-02-23 Bathtub-insertable lifting apparatus
AU56476/94A AU663457B2 (en) 1993-03-05 1994-03-01 Bathtub-insertable lifting apparatus
CA002116931A CA2116931A1 (en) 1993-03-05 1994-03-03 Bathtub-insertable lifting apparatus
JP6062063A JP2527408B2 (en) 1993-03-05 1994-03-07 Lifting device to put a physically handicapped person in the bathtub

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93103521A EP0619106B1 (en) 1993-03-05 1993-03-05 Lift insertable in a bathtub

Publications (2)

Publication Number Publication Date
EP0619106A1 EP0619106A1 (en) 1994-10-12
EP0619106B1 true EP0619106B1 (en) 1996-12-27

Family

ID=8212663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103521A Expired - Lifetime EP0619106B1 (en) 1993-03-05 1993-03-05 Lift insertable in a bathtub

Country Status (9)

Country Link
US (1) US5392474A (en)
EP (1) EP0619106B1 (en)
JP (1) JP2527408B2 (en)
AT (1) ATE146671T1 (en)
AU (1) AU663457B2 (en)
CA (1) CA2116931A1 (en)
DE (1) DE59304901D1 (en)
ES (1) ES2096119T3 (en)
ZA (1) ZA941227B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0757199A1 (en) 1995-07-31 1997-02-05 Schmidt &amp; Lenhardt GmbH &amp; Co. oHG Shower head with integrated manual control lever for a bath lift for disabled persons
DE59506901D1 (en) 1995-07-31 1999-10-28 Schmidt & Lenhardt Gmbh & Co Manual control device for lift devices that can be used in bathtubs
US6336230B1 (en) 2000-12-01 2002-01-08 Sylvia M. Lane Device for lifting persons into and out of a bathtub
ES2390722B1 (en) * 2011-02-24 2013-08-09 Javier MORENO BERTOMEU HYDRAULIC PLATFORM FOR CANINE BATHROOM WITH SUBJECTION OF THE PET TO THE ADJUSTABLE MOBILE SUPERIOR TRAY IN HEIGHT

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419044A (en) * 1965-09-29 1968-12-31 William A. Daniels Bath lift control valve
US3545013A (en) * 1969-05-23 1970-12-08 Harlen A Discoe Hydro bathtub safety aid
GB2210411B (en) * 1987-09-30 1992-05-27 Mangar Aids Ltd Improvements in or relating to compressed air supply apparatus
DE3821192A1 (en) * 1988-06-23 1989-12-28 Peter Schmidt BACKREST FOR SEAT OR LYING PANELS
DE3908231A1 (en) * 1989-03-14 1990-09-20 Wolfgang Dentler Bathtub insert with lifting device

Also Published As

Publication number Publication date
US5392474A (en) 1995-02-28
ES2096119T3 (en) 1997-03-01
DE59304901D1 (en) 1997-02-06
ATE146671T1 (en) 1997-01-15
JPH06296648A (en) 1994-10-25
AU5647694A (en) 1994-09-08
AU663457B2 (en) 1995-10-05
CA2116931A1 (en) 1994-09-06
EP0619106A1 (en) 1994-10-12
ZA941227B (en) 1994-10-18
JP2527408B2 (en) 1996-08-21

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