EP0141881B1 - Nursing bed - Google Patents

Nursing bed Download PDF

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Publication number
EP0141881B1
EP0141881B1 EP83201634A EP83201634A EP0141881B1 EP 0141881 B1 EP0141881 B1 EP 0141881B1 EP 83201634 A EP83201634 A EP 83201634A EP 83201634 A EP83201634 A EP 83201634A EP 0141881 B1 EP0141881 B1 EP 0141881B1
Authority
EP
European Patent Office
Prior art keywords
gas spring
bed
nursing bed
lever
parts
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
Application number
EP83201634A
Other languages
German (de)
French (fr)
Other versions
EP0141881A1 (en
Inventor
Jan Johannes De Bruin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83201634T priority Critical patent/ATE32027T1/en
Priority to EP83201634A priority patent/EP0141881B1/en
Priority to DE8383201634T priority patent/DE3375372D1/en
Publication of EP0141881A1 publication Critical patent/EP0141881A1/en
Application granted granted Critical
Publication of EP0141881B1 publication Critical patent/EP0141881B1/en
Expired 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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame

Definitions

  • the present invention relates to a nursing bed having legs each consisting of two parts which are slidably telescoped one into the other, and each e.g. being provided with a locking means to lock the telescopic parts in a desired position with respect to one another, an elastic element being housed within the cross-section of each leg and being interposed between the telescopic parts of each leg.
  • US-A-2,698,442 discloses such a nursing bed wherein the elastic element is a coil spring.
  • the elastic element is a coil spring.
  • a disadvantage of a coil spring is that the heavierthe coil spring is, the larger its cross-section becomes.
  • the operating range of a coil spring is not large enough to permit location of the mattress of a bed on the high level which is convenient for nurses to tend to a patient and on the low level which is convenient for a patient to get in and out of the bed.
  • the cross-section of coil springs causes the cross-section of the legs to be much larger than the cross-section of ordinary legs without springs and such large cross-sectioned legs do not look very attractive.
  • each leg of the novel nursing bed embodied in the invention has a gas spring.
  • the novel nursing bed is further characterized in that one end of the gas spring is a piston which is movable with respect to the rest of the gas spring, the piston being movable by means of a bolt-and-nut assembly in order to adjust the gas pressure in the gas spring.
  • the novel nursing bed is preferably characterized in that the locking means comprises a locking/ releasing valve for the gas spring.
  • each side of the bed is provided with two levers, each lever having two end parts, the one end part being positioned close to the middle of the bed side in question and cooperating with the adjacent end part of the other lever at the same bed side, while the other end part cooperates with the adjacent end part of a lever mounted on the adjacent side of the bed in order to operate the locking/releasing valves of the gas springs by means of control means located beneath said adjacent end parts.
  • an embodiment of the invented nursing-bed comprises a mattress support 1 and four telescopic legs which each comprise parts 2 and 3 which are slidably telescoped one into the other.
  • locking means 4 are provided as shown in figure 2 as well.
  • gas spring 5 is provided between sliding parts 2 and 3 of each telescopic leg.
  • gas spring 5 tends to raise the mattress support 1 notwithstanding its weight and the weight of a patient. If the strength of gas spring 5 is well chosen, it permits a nurse to lift or lower the bed without much effort.
  • each gas spring works independently and in a continuous way, it is possible to move the mattress support into *an unrestricted number of height levels and tilted positions. In particular, tilting is possible about the longitudinal or transversal axis of the mattress support but also about any other axis between these axes.
  • FIG 3 shows a gas spring provided with adjusting means adapted to counterbalance the difference in weight of potential patients.
  • This gas spring comprises a cylinder 7 defining an inner chamber 8 filled with pressurized gas which produces an upward force on a piston 9 slidingly located in the cylinder 7.
  • an adjustable piston 10 which allows the pressure of the gas in chamber 8to be modified.
  • two legs 11 are fixed, an nut 12 being welded between the lower ends of said legs.
  • Under the cylinder 7 a knurled headed screw 13 cooperating with the nut 12 is located.
  • a rail 14 prevents piston 10 from being pushed out of cylinder 7 by pressurized gas.
  • piston 10 slides into cylinder 7 and thereby the volume of chamber 8 is modified and thus the pressure of gas within chamber 8 is adjusted.
  • a guide system 15, 16 is provided in order to prevent piston 10 from rotating with screw 13, a guide system 15, 16 is provided.
  • a well-known valve system control means 18 may be used, said control means being located on the rod 17 of the active piston as is shown in figure 4.
  • Such a control means may be used in the lever system shown in figure 5.
  • This lever system comprises levers 19 which are pivotably mounted on mattress support 1 by means of axles 20, each lever 19 having a flat portion 21 adapted to push on control means 18 and a steering portion 22 at the other end of the lever 19.
  • These levers steer one another so as to act on two or more control means.
  • figure 5 shows that raising the steering portion 22 of lever A will also raise steering portion 22 of lever B and will lower flat portion 21 of lever A which will lower flat portion 21 of lever C and thus the steering portion 22 of lever C will rise, which results in the rising of steering portion 22 of lever D.
  • FIG 6 shows levers A to H acting on gas springs situated in the corners 31, 32, 33 and 34 of the nursing bed.

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)
  • Invalid Beds And Related Equipment (AREA)

Abstract

This nursing bed comprises gassprings (5) located between sliding parts (2, 3) of telescopic legs. Locking and releasing means (18) are provided. Calibrating means (13) adapted to counterbalance the difference of weight of potential patients are also provided.

Description

  • The present invention relates to a nursing bed having legs each consisting of two parts which are slidably telescoped one into the other, and each e.g. being provided with a locking means to lock the telescopic parts in a desired position with respect to one another, an elastic element being housed within the cross-section of each leg and being interposed between the telescopic parts of each leg.
  • US-A-2,698,442 discloses such a nursing bed wherein the elastic element is a coil spring. A disadvantage of a coil spring is that the heavierthe coil spring is, the larger its cross-section becomes.
  • Also the operating range of a coil spring is not large enough to permit location of the mattress of a bed on the high level which is convenient for nurses to tend to a patient and on the low level which is convenient for a patient to get in and out of the bed. Finally, the cross-section of coil springs causes the cross-section of the legs to be much larger than the cross-section of ordinary legs without springs and such large cross-sectioned legs do not look very attractive.
  • Accordingly, it is an object of the present invention to provide a nursing bed being suitable for a large range of weights of patients, wherein the height of the mattress is moreover adjustable to a large range of heights.
  • In order to achieve these objects each leg of the novel nursing bed embodied in the invention has a gas spring.
  • Preferably the novel nursing bed is further characterized in that one end of the gas spring is a piston which is movable with respect to the rest of the gas spring, the piston being movable by means of a bolt-and-nut assembly in order to adjust the gas pressure in the gas spring.
  • In orderto adjust the strength of each gas spring to the weight of a patient and to its position near the heavier upper or lighter lower part of a patient, the novel nursing bed is preferably characterized in that the locking means comprises a locking/ releasing valve for the gas spring.
  • The novel nursing bed is also preferably characterized in that each side of the bed is provided with two levers, each lever having two end parts, the one end part being positioned close to the middle of the bed side in question and cooperating with the adjacent end part of the other lever at the same bed side, while the other end part cooperates with the adjacent end part of a lever mounted on the adjacent side of the bed in order to operate the locking/releasing valves of the gas springs by means of control means located beneath said adjacent end parts.
  • The invention will be more clearly understood from the following description of the embodiments, given by way of example only, with reference in the accompanying drawings in which:
    • - figure 1 is a perspective view of a nursing bed with telescopic legs according to the invention.
    • - figure 2 is a vertical section of one of the legs of the nursing bed embodied in the invention.
    • -figure 3 is a vertical section of a leg and a gas spring provided with adjusting means for the strength of the gas spring according to the invention.
    • - figure 4 is a vertical section of one of the legs of the nursing bed according to the invention, the gas spring being provided with valve control means.
    • - figure 5 is a side view of a part of the lever system according to the invention and
    • - figure 6 is a schematic view of the complete lever system of which figure 5 shows a part.
  • As illustrated in figure 1, an embodiment of the invented nursing-bed comprises a mattress support 1 and four telescopic legs which each comprise parts 2 and 3 which are slidably telescoped one into the other. In order to maintain a selected length for each leg, locking means 4 are provided as shown in figure 2 as well.
  • According to the invention a gas spring 5 is provided between sliding parts 2 and 3 of each telescopic leg. When the locking means 4 is unlocked, gas spring 5 tends to raise the mattress support 1 notwithstanding its weight and the weight of a patient. If the strength of gas spring 5 is well chosen, it permits a nurse to lift or lower the bed without much effort.
  • As each gas spring works independently and in a continuous way, it is possible to move the mattress support into *an unrestricted number of height levels and tilted positions. In particular, tilting is possible about the longitudinal or transversal axis of the mattress support but also about any other axis between these axes.
  • Figure 3 shows a gas spring provided with adjusting means adapted to counterbalance the difference in weight of potential patients. This gas spring comprises a cylinder 7 defining an inner chamber 8 filled with pressurized gas which produces an upward force on a piston 9 slidingly located in the cylinder 7. At the end of the cylinder 7 facing the active piston 9 is an adjustable piston 10 which allows the pressure of the gas in chamber 8to be modified. On the lower side of piston 10 two legs 11 are fixed, an nut 12 being welded between the lower ends of said legs. Under the cylinder 7 a knurled headed screw 13 cooperating with the nut 12 is located.
  • A rail 14 prevents piston 10 from being pushed out of cylinder 7 by pressurized gas. By turning screw 13 piston 10 slides into cylinder 7 and thereby the volume of chamber 8 is modified and thus the pressure of gas within chamber 8 is adjusted. In order to prevent piston 10 from rotating with screw 13, a guide system 15, 16 is provided. Instead of mechanical locking and releasing means 4 a well-known valve system control means 18 may be used, said control means being located on the rod 17 of the active piston as is shown in figure 4.
  • Such a control means may be used in the lever system shown in figure 5. This lever system comprises levers 19 which are pivotably mounted on mattress support 1 by means of axles 20, each lever 19 having a flat portion 21 adapted to push on control means 18 and a steering portion 22 at the other end of the lever 19. These levers steer one another so as to act on two or more control means. For instance, figure 5 shows that raising the steering portion 22 of lever A will also raise steering portion 22 of lever B and will lower flat portion 21 of lever A which will lower flat portion 21 of lever C and thus the steering portion 22 of lever C will rise, which results in the rising of steering portion 22 of lever D. With these levers it is possible to act on one, two or all of the gas springs at the same time, as shown in figure 6, which shows levers A to H acting on gas springs situated in the corners 31, 32, 33 and 34 of the nursing bed.

Claims (4)

1. Nursing bed (1) having legs each consisting of two parts (2, 3) which are slidably telescoped one into the other, and each leg being provided with a locking means (4) to lock the telescopic parts in a desired position with respect to one another, an elastic element (5) being housed within the cross-section of each leg and being interposed between the telescopic parts of each leg, characterized in that each elastic element (5) is a gas spring.
2. Nursing bed according to claim 1, characterized in that one end of the gas spring (5) is a piston (10) which is movable with respect to the rest of the gas spring, the piston being movable by means of a bolt-and-nut assembly (12, 13) in order to adjust the gas pressure in the gas spring.
3. Nursing bed according to claim 2, characterized in that the locking means comprises a locking/releasing valve for the gas spring.
4. Nursing bed according to claim 3, characterized in that each side of the bed is provided with two levers (A, B; C, D; E, F; G, H), each lever having two end parts (21, 22), the one end part (22) being positioned close to the middle of the bed side in question and cooperating with the adjacent end part (22) of the other lever at the same bed side, while the other end part (21) cooperates with the adjacent end part (21) of a lever mounted on the adjacent side of the bed in order to operate the locking/releasing valves of the gas springs by means of control means (18) located beneath said adjacent end parts (21).
EP83201634A 1983-11-17 1983-11-17 Nursing bed Expired EP0141881B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT83201634T ATE32027T1 (en) 1983-11-17 1983-11-17 CARE BED.
EP83201634A EP0141881B1 (en) 1983-11-17 1983-11-17 Nursing bed
DE8383201634T DE3375372D1 (en) 1983-11-17 1983-11-17 Nursing bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83201634A EP0141881B1 (en) 1983-11-17 1983-11-17 Nursing bed

Publications (2)

Publication Number Publication Date
EP0141881A1 EP0141881A1 (en) 1985-05-22
EP0141881B1 true EP0141881B1 (en) 1988-01-20

Family

ID=8191012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201634A Expired EP0141881B1 (en) 1983-11-17 1983-11-17 Nursing bed

Country Status (3)

Country Link
EP (1) EP0141881B1 (en)
AT (1) ATE32027T1 (en)
DE (1) DE3375372D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919207C1 (en) * 1989-06-13 1990-11-08 Voelker Moebelproduktionsgesellschaft Mbh, 5810 Witten, De Support leg for hospital bed - has corner posts with telescopic leg sections having drive linkage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209464A (en) * 1987-03-20 1989-05-17 Wu Dynamic Limited Multi-positional bed: control arrangement
US7761310B2 (en) 2005-12-09 2010-07-20 Samarion, Inc. Methods and systems for monitoring quality and performance at a healthcare facility

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698442A (en) * 1949-11-09 1955-01-04 Simmons Co Variable height bed
FR1168393A (en) * 1957-01-09 1958-12-08 Le Lit Tous Soins Improvements to medical beds
US3039118A (en) * 1960-11-22 1962-06-19 Clyde B Hutt Adjustable height bed
NL7105381A (en) * 1971-04-21 1972-10-24
DE2165209C3 (en) * 1971-12-29 1974-07-18 Bremshey Ag, 5650 Solingen Bed, especially sick bed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919207C1 (en) * 1989-06-13 1990-11-08 Voelker Moebelproduktionsgesellschaft Mbh, 5810 Witten, De Support leg for hospital bed - has corner posts with telescopic leg sections having drive linkage

Also Published As

Publication number Publication date
EP0141881A1 (en) 1985-05-22
DE3375372D1 (en) 1988-02-25
ATE32027T1 (en) 1988-02-15

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