WO1988006422A1 - Bath tub lifting device - Google Patents

Bath tub lifting device Download PDF

Info

Publication number
WO1988006422A1
WO1988006422A1 PCT/SE1987/000095 SE8700095W WO8806422A1 WO 1988006422 A1 WO1988006422 A1 WO 1988006422A1 SE 8700095 W SE8700095 W SE 8700095W WO 8806422 A1 WO8806422 A1 WO 8806422A1
Authority
WO
WIPO (PCT)
Prior art keywords
bath tub
jack
lifting device
bath
tub lifting
Prior art date
Application number
PCT/SE1987/000095
Other languages
French (fr)
Inventor
Lars Gustaf Ekman
Original Assignee
Aktiebolaget Electrolux
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 Aktiebolaget Electrolux filed Critical Aktiebolaget Electrolux
Priority to EP19870901729 priority Critical patent/EP0302859B1/en
Priority to PCT/SE1987/000095 priority patent/WO1988006422A1/en
Priority to DE8787901729T priority patent/DE3763589D1/en
Publication of WO1988006422A1 publication Critical patent/WO1988006422A1/en

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.

Abstract

In a bath tub lifting device operated by a jack (20), the jack is unloaded by a so-called gas spring (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).
PCT/SE1987/000095 1987-02-26 1987-02-26 Bath tub lifting device WO1988006422A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19870901729 EP0302859B1 (en) 1987-02-26 1987-02-26 Bath tub lifting device
PCT/SE1987/000095 WO1988006422A1 (en) 1987-02-26 1987-02-26 Bath tub lifting device
DE8787901729T DE3763589D1 (en) 1987-02-26 1987-02-26 LIFTING DEVICE FOR BATHTUBS.

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 (1)

Publication Number Publication Date
WO1988006422A1 true WO1988006422A1 (en) 1988-09-07

Family

ID=20367144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1987/000095 WO1988006422A1 (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)

Cited By (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

Citations (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
US3889304A (en) * 1973-05-24 1975-06-17 Soederberg Ab Tollam Bathing device for invalided persons
SE449427B (en) * 1985-08-27 1987-05-04 Lars Gustaf Ekman Raisable and lowerable bath tub

Patent Citations (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
US3889304A (en) * 1973-05-24 1975-06-17 Soederberg Ab Tollam Bathing device for invalided persons
SE449427B (en) * 1985-08-27 1987-05-04 Lars Gustaf Ekman Raisable and lowerable bath tub

Cited By (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

Also Published As

Publication number Publication date
EP0302859A1 (en) 1989-02-15
DE3763589D1 (en) 1990-08-09
EP0302859B1 (en) 1990-07-04

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