WO1998020830A1 - Hospital bed - Google Patents

Hospital bed Download PDF

Info

Publication number
WO1998020830A1
WO1998020830A1 PCT/SE1997/001814 SE9701814W WO9820830A1 WO 1998020830 A1 WO1998020830 A1 WO 1998020830A1 SE 9701814 W SE9701814 W SE 9701814W WO 9820830 A1 WO9820830 A1 WO 9820830A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheels
bed
pair
hospital bed
articulated
Prior art date
Application number
PCT/SE1997/001814
Other languages
French (fr)
Inventor
Tommy Karlsson
Original Assignee
Ergosafe 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 Ergosafe Ab filed Critical Ergosafe Ab
Priority to EP97913581A priority Critical patent/EP1024777A1/en
Publication of WO1998020830A1 publication Critical patent/WO1998020830A1/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
    • A61G7/05—Parts, details or accessories of beds
    • 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
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/0528—Steering or braking devices for castor wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/025—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using form-fit, e.g. front teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2200/00—Type of product being used or applied
    • B60B2200/20—Furniture or medical appliances
    • B60B2200/24—Beds
    • B60B2200/242—Hospital beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0023—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of specific adaptations to the form of the object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0039—Single wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/021—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/08—Wheel arrangements; Steering; Stability; Wheel suspension comprising additional wheels to increase stability

Definitions

  • the present invention relates to a hospital bed having a frame with two articulated pairs of wheels, between which is arranged an articulated or non-articulated pair of wheels.
  • articulated wheel here means a wheel supported by a bearing housing pivotable about a vertical axis.
  • the object of the present invention is to provide a solution to these and other associated problems.
  • the hospital bed according to the invention is characterized in that the intermediate pair of wheels is spring-supported at the frame, and in that a ratchet for the intermediate pair of wheels is arranged on the bed and designed to block the direction of movement of the wheels and possibly also lock this pair of wheels and, in unlocked position, to allow the wheels in this pair to move freely.
  • the construction is intended to facilitate transport of the bed from place to place. Transport of such a bed can easily be performed by one person since the bed pivots about a fulcrum at the intermediate pair of wheels.
  • the intermediate pair of wheels being spring-supported means that, even when the bed is stationary, all six wheels reach the floor, the middle pair under a certain pressure, thus ensuring that a person lying in the bed is not subjected to unpleasant tilting, while at the same time the intermediate pair of wheels facilitates transport of the bed from place to place.
  • the bed frame can be used for old beds as well as new ones.
  • Figure 1 shows a bed frame, seen from the side.
  • Figure 2 is a section along the line A - A in Figure 1
  • Figure 3 is a section along the line B - B in Figure 1.
  • Figure 1 shows the frame (1) of a hospital bed according to the invention.
  • the bed (frame) is provided in conventional manner with two articulated pairs of wheels (9), with one wheel at each corner.
  • the wheels are articulated and, as mentioned, manipulation of a bed with only these wheels is cumbersome.
  • the bed is provided with an intermediate pair of wheels (2), the two wheels of which are supported by vertical shafts (3) arranged in the frame.
  • the intermediate wheels are spring-supported in relation to the frame (1), in this case by helical springs (4) around the support shafts (3), the springs being clamped between washers (6) welded to the support shafts and wheel houses for these wheels (2). See Figure 3.
  • the aim is that, when the bed is stationary and during transport, all six wheels shall be in contact with the floor, the intermediate wheels being under a certain pressure. When the bed is stationary, therefore, it cannot tip over. At the same time these intermediate wheels contribute to facilitating transport of the bed.
  • Hexagonal apertures (5) for a hexagon bar (7) are provided in the support shafts (3).
  • the bar is manipulated from the end of the bed between a locked position (8) and a movable position (8').
  • the locked position primarily locks the direction of movement but may also lock the wheels.
  • the bed may also be provided with brake members (not shown). Since the bed always stands on six wheels there is no risk of rocking.
  • the ratchet means is also shown in Figures 2 and 3. Turning the hexagon bar (7) either locks or releases the middle pair of wheels (2).

Abstract

The present invention relates to a hospital bed having a frame (1) with two articulated pairs of wheels (9), between which is arranged an articulated or non-articulated pair of wheels (2). The invention is characterized in that the intermediate pair of wheels (2) is spring-supported (4) at the frame (1) in order to facilitate transport of the bed from place to place.

Description

HOSPITAL BED
Technical field:
The present invention relates to a hospital bed having a frame with two articulated pairs of wheels, between which is arranged an articulated or non-articulated pair of wheels. The term "articulated wheel" here means a wheel supported by a bearing housing pivotable about a vertical axis.
Background art:
It is difficult for one person to move such a bed and two people are generally required to carry out this transport simply and practically.
Description of the invention: The object of the present invention is to provide a solution to these and other associated problems. The hospital bed according to the invention is characterized in that the intermediate pair of wheels is spring-supported at the frame, and in that a ratchet for the intermediate pair of wheels is arranged on the bed and designed to block the direction of movement of the wheels and possibly also lock this pair of wheels and, in unlocked position, to allow the wheels in this pair to move freely. The construction is intended to facilitate transport of the bed from place to place. Transport of such a bed can easily be performed by one person since the bed pivots about a fulcrum at the intermediate pair of wheels. The intermediate pair of wheels being spring-supported means that, even when the bed is stationary, all six wheels reach the floor, the middle pair under a certain pressure, thus ensuring that a person lying in the bed is not subjected to unpleasant tilting, while at the same time the intermediate pair of wheels facilitates transport of the bed from place to place. The bed frame can be used for old beds as well as new ones.
Brief description of the drawings:
The invention is illustrated in the accompanying drawings in which Figure 1 shows a bed frame, seen from the side. Figure 2 is a section along the line A - A in Figure 1, and Figure 3 is a section along the line B - B in Figure 1.
Description of embodiment: Figure 1 shows the frame (1) of a hospital bed according to the invention. The bed (frame) is provided in conventional manner with two articulated pairs of wheels (9), with one wheel at each corner. The wheels are articulated and, as mentioned, manipulation of a bed with only these wheels is cumbersome. The bed is provided with an intermediate pair of wheels (2), the two wheels of which are supported by vertical shafts (3) arranged in the frame. The intermediate wheels are spring-supported in relation to the frame (1), in this case by helical springs (4) around the support shafts (3), the springs being clamped between washers (6) welded to the support shafts and wheel houses for these wheels (2). See Figure 3. The aim is that, when the bed is stationary and during transport, all six wheels shall be in contact with the floor, the intermediate wheels being under a certain pressure. When the bed is stationary, therefore, it cannot tip over. At the same time these intermediate wheels contribute to facilitating transport of the bed.
Hexagonal apertures (5) for a hexagon bar (7) are provided in the support shafts (3). The bar is manipulated from the end of the bed between a locked position (8) and a movable position (8'). The locked position primarily locks the direction of movement but may also lock the wheels. The bed may also be provided with brake members (not shown). Since the bed always stands on six wheels there is no risk of rocking. The ratchet means is also shown in Figures 2 and 3. Turning the hexagon bar (7) either locks or releases the middle pair of wheels (2).
The invention can be varied in many ways within the scope of the appended claims.

Claims

1. A hospital bed having a frame (1) with two articulated pairs of wheels (9), between which is arranged an articulated or non- articulated pair of wheels (2), characterized in that the intermediate pair of wheels (2) is spring-supported (4) at the frame (1), and in that a ratchet (7) for the intermediate pair of wheels (2) is arranged on the bed and designed to block the direction of movement of the wheels and possibly also lock this pair of wheels and, in unlocked position, to allow the wheels (2) in this pair to move freely, which construction is intended to facilitate transport of the bed from place to place.
2. A hospital bed as claimed in claim 1, characterized in that the spring-loaded wheels (2) are so arranged that they always exert a pressure on the floor, both when stationary and during transport.
3. A hospital bed as claimed in claims 1-2, characterized in that the frame (1) can be applied on both new and old beds.
4. A hospital bed as claimed in claim 1, characterized in that the ratchet includes a hexagon bar (7) for insertion into a corresponding aperture (5) in the vertical support shafts (3) for the intermediate pair of wheels (2).
5. A hospital bed as claimed in claim 4, characterized in that the ratchet is arranged to be operated from the end of the bed.
6. A hospital bed as claimed in any of the preceding claims, characterized in that the resilient means consist of helical springs (4) wound around the vertical support shafts (3) and clamped between washers (6) welded around these shafts, and the intermediate pair of wheels (2).
PCT/SE1997/001814 1996-11-13 1997-10-30 Hospital bed WO1998020830A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97913581A EP1024777A1 (en) 1996-11-13 1997-10-30 Hospital bed

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9604130A SE511048C2 (en) 1996-11-13 1996-11-13 Hospital bed showing an intermediate, resiliently supported wheel pair
SE9604130-6 1996-11-13

Publications (1)

Publication Number Publication Date
WO1998020830A1 true WO1998020830A1 (en) 1998-05-22

Family

ID=20404573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/001814 WO1998020830A1 (en) 1996-11-13 1997-10-30 Hospital bed

Country Status (3)

Country Link
EP (1) EP1024777A1 (en)
SE (1) SE511048C2 (en)
WO (1) WO1998020830A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999016402A1 (en) * 1997-09-29 1999-04-08 Huntleigh Technology Plc Accident and emergency trolley
WO2005041837A2 (en) 2003-10-30 2005-05-12 Savion Industries (1987) Ltd. Maneuverable device for transporting loads over a surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348326A (en) * 1993-03-02 1994-09-20 Hill-Rom Company, Inc. Carrier with deployable center wheels
EP0618088A2 (en) * 1993-03-31 1994-10-05 Hill-Rom, Inc. Hospital bed castor control mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348326A (en) * 1993-03-02 1994-09-20 Hill-Rom Company, Inc. Carrier with deployable center wheels
EP0618088A2 (en) * 1993-03-31 1994-10-05 Hill-Rom, Inc. Hospital bed castor control mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999016402A1 (en) * 1997-09-29 1999-04-08 Huntleigh Technology Plc Accident and emergency trolley
WO2005041837A2 (en) 2003-10-30 2005-05-12 Savion Industries (1987) Ltd. Maneuverable device for transporting loads over a surface

Also Published As

Publication number Publication date
SE511048C2 (en) 1999-07-26
EP1024777A1 (en) 2000-08-09
SE9604130L (en) 1998-05-14
SE9604130D0 (en) 1996-11-13

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