EP0302859A1 - Bath tub lifting device. - Google Patents

Bath tub lifting device.

Info

Publication number
EP0302859A1
EP0302859A1 EP19870901729 EP87901729A EP0302859A1 EP 0302859 A1 EP0302859 A1 EP 0302859A1 EP 19870901729 EP19870901729 EP 19870901729 EP 87901729 A EP87901729 A EP 87901729A EP 0302859 A1 EP0302859 A1 EP 0302859A1
Authority
EP
European Patent Office
Prior art keywords
bath tub
jack
lifting device
bath
column part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19870901729
Other languages
German (de)
French (fr)
Other versions
EP0302859B1 (en
Inventor
Lars Gustaf Ekman
Original Assignee
Electrolux AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux AB filed Critical Electrolux AB
Publication of EP0302859A1 publication Critical patent/EP0302859A1/en
Application granted granted Critical
Publication of EP0302859B1 publication Critical patent/EP0302859B1/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1001—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications
    • A61G7/1003—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications mounted on or in combination with a bath-tub
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1019—Vertical extending columns or mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049—Attachment, suspending or supporting means for patients
    • A61G7/1057—Supported platforms, frames or sheets for patient in lying position
    • 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
    • A61G2200/32—Specific positions of the patient lying

Definitions

  • the invention refers to a bath tub lifting device comprising a jack to raise and lower a bath tub.
  • Such a lifting device which is known through e.g. U.S. patent No. 3,889,304, is intended to make bathing of a patient easy, a lowered position of the bath tub facilitating the transferring of the patient to and from the bath tub, respectively, and a raised position facilitating the work for a person who stands beside the bath tub and bathes the patient.
  • the jack is constituted by a fluid motor dimensioned to lift the entire weight of the bath tub, the bath -water and the patient in the bath tub. Said weight is considerable and a high fluid pressure or a large fluid motor is therefore required.
  • the object of the invention is to substantially reduce the necessary lifting force of the jack thereby simplifying the driving of the lifting device.
  • the necessary lifting force of the jack can be reduced so that the jack advantageously can be driven by an electric motor without the electric amperage becoming too great.
  • the jack is driven by an electric motor.
  • the numeral 10 designates a lower part which shows a frame 12 resting on a floor 14, and a lower column part 16 on which an upper column part 18 is displaceably journalled in vertical direction.
  • the upper column part 18 is vertical ⁇ ly adjustable by a jack 20 which is operable by an electric motor 22 driving a longitudinal screw inside the jack.
  • the screw engages a nut connected to a rod 24 of the jack, so that the rod 24 is displaced in its longitudinal direction relative to a lower part 26 of the jack, when the screw rotates.
  • Arms 28 carrying a bath tub 30 are rigidly connected to the upper column part 18.
  • the rod 24 is rigidly connected to the upper column part 18.
  • the lower part 26 of the jack is rigidly connected to the lower part 10.
  • the jack 20 is unloaded by means of a so-called gas spring 32, the one end of which being rigidly connected to the upper column part 18 and the other end of which being rigidly connected to the lower part 10.
  • the gas spring 32 the force of which being substantially constant during the whole stroke of the gas spring as is character- istic for gas springs, is arranged to lift the upper column part with a force which is substantially equal to the weight of the parts (including the bath tub, the bath-water and the patient) of the lifting device, which move in vertical direction together with the upper column part 18.
  • the jack then substantially only has to be dimensioned to overcome the friction forces which arise, when the bath tub is lifted from the lowered position to the raised position and after that is lowered from the raised position to the lowered position.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

Dans un dispositif de levage pour baignoire actionné par un vérin (20), le vérin est déchargé par une suspension (32) à gaz.In a lifting device for a bathtub actuated by a jack (20), the jack is discharged by a gas suspension (32).

Description

- Λ -
Bath tub lifting device
The invention refers to a bath tub lifting device comprising a jack to raise and lower a bath tub.
Such a lifting device, which is known through e.g. U.S. patent No. 3,889,304, is intended to make bathing of a patient easy, a lowered position of the bath tub facilitating the transferring of the patient to and from the bath tub, respectively, and a raised position facilitating the work for a person who stands beside the bath tub and bathes the patient.
At the known lifting device the jack is constituted by a fluid motor dimensioned to lift the entire weight of the bath tub, the bath -water and the patient in the bath tub. Said weight is considerable and a high fluid pressure or a large fluid motor is therefore required.
The object of the invention is to substantially reduce the necessary lifting force of the jack thereby simplifying the driving of the lifting device.
This object is reached by the bath tub lifting device according to the invention by a so-called gas spring which is arranged to unload the jack.
Through the invention the necessary lifting force of the jack can be reduced so that the jack advantageously can be driven by an electric motor without the electric amperage becoming too great. Therfore, according to a further develop¬ ment of the invention the jack is driven by an electric motor. An embodiment of a bath tub lifting device according to the invention will be described in the following with reference to the figure of the accompanying drawing.
The numeral 10 designates a lower part which shows a frame 12 resting on a floor 14, and a lower column part 16 on which an upper column part 18 is displaceably journalled in vertical direction. The upper column part 18 is vertical¬ ly adjustable by a jack 20 which is operable by an electric motor 22 driving a longitudinal screw inside the jack. The screw engages a nut connected to a rod 24 of the jack, so that the rod 24 is displaced in its longitudinal direction relative to a lower part 26 of the jack, when the screw rotates. Arms 28 carrying a bath tub 30 are rigidly connected to the upper column part 18.
The rod 24 is rigidly connected to the upper column part 18. The lower part 26 of the jack is rigidly connected to the lower part 10. The jack 20 is unloaded by means of a so-called gas spring 32, the one end of which being rigidly connected to the upper column part 18 and the other end of which being rigidly connected to the lower part 10. The gas spring 32, the force of which being substantially constant during the whole stroke of the gas spring as is character- istic for gas springs, is arranged to lift the upper column part with a force which is substantially equal to the weight of the parts (including the bath tub, the bath-water and the patient) of the lifting device, which move in vertical direction together with the upper column part 18.
If the bath-water is filled up and emptied, respectively, and the patient is transferred to and from the bath tub, respectively, when the bath tub is located in its lowered position, the jack then substantially only has to be dimensioned to overcome the friction forces which arise, when the bath tub is lifted from the lowered position to the raised position and after that is lowered from the raised position to the lowered position.

Claims

Claims
1. Bath tub lifting device comprising a jack (20) to raise and lower a bath tub (30), characterized by a so-called gas spring (32) which is arranged to unload the jack.
2. Bath tub lifting device according to Claim 1, characterized in that the jack is driven by an electric motor (22).
EP19870901729 1987-02-26 1987-02-26 Bath tub lifting device Expired EP0302859B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1987/000095 WO1988006422A1 (en) 1987-02-26 1987-02-26 Bath tub lifting device

Publications (2)

Publication Number Publication Date
EP0302859A1 true EP0302859A1 (en) 1989-02-15
EP0302859B1 EP0302859B1 (en) 1990-07-04

Family

ID=20367144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870901729 Expired EP0302859B1 (en) 1987-02-26 1987-02-26 Bath tub lifting device

Country Status (3)

Country Link
EP (1) EP0302859B1 (en)
DE (1) DE3763589D1 (en)
WO (1) WO1988006422A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600837A1 (en) * 1992-12-01 1994-06-08 Mobil-Bad Ag Rotating bath

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE303359B (en) * 1965-06-16 1968-08-26 Electrolux Ab
GB1386222A (en) * 1973-05-24 1975-03-05 Soederberg Tollam Ab Device for handling invalided persons during bathing and similar treatment
SE449427B (en) * 1985-08-27 1987-05-04 Lars Gustaf Ekman Raisable and lowerable bath tub

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8806422A1 *

Also Published As

Publication number Publication date
WO1988006422A1 (en) 1988-09-07
DE3763589D1 (en) 1990-08-09
EP0302859B1 (en) 1990-07-04

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