GB2575343A - A reclining mechanism - Google Patents

A reclining mechanism Download PDF

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Publication number
GB2575343A
GB2575343A GB1906601.8A GB201906601A GB2575343A GB 2575343 A GB2575343 A GB 2575343A GB 201906601 A GB201906601 A GB 201906601A GB 2575343 A GB2575343 A GB 2575343A
Authority
GB
United Kingdom
Prior art keywords
frame
seat frame
seat
stop assembly
reclining mechanism
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.)
Withdrawn
Application number
GB1906601.8A
Other versions
GB201906601D0 (en
Inventor
Whittington Mark
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.)
Integral Care Tech Ltd
Original Assignee
Integral Care Tech Ltd
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 claimed from AU2018901723A external-priority patent/AU2018901723A0/en
Application filed by Integral Care Tech Ltd filed Critical Integral Care Tech Ltd
Publication of GB201906601D0 publication Critical patent/GB201906601D0/en
Publication of GB2575343A publication Critical patent/GB2575343A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/027—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of clamps or friction locking members
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/028—Reclining or easy chairs having independently-adjustable supporting parts for changing a straight chair into an easy chair, e.g. by inverting or tilting seat and back-rest in the base frame or by overturning the whole chair
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/028—Reclining or easy chairs having independently-adjustable supporting parts for changing a straight chair into an easy chair, e.g. by inverting or tilting seat and back-rest in the base frame or by overturning the whole chair
    • A47C1/029—Reclining or easy chairs having independently-adjustable supporting parts for changing a straight chair into an easy chair, e.g. by inverting or tilting seat and back-rest in the base frame or by overturning the whole chair by changing the length or the inclination of the legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/122—Rests specially adapted therefor, e.g. for the head or the feet for the back
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/124—Rests specially adapted therefor, e.g. for the head or the feet for pelvis or buttocks
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/127—Rests specially adapted therefor, e.g. for the head or the feet for lower legs

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

A mechanism for a reclining chair including a base frame 12, a seat frame 14 rotatably attached to the base and movable between first and second positions where in the second, a front portion of the seat frame is raised, a back frame 18 rotatably attached to the seat frame and movable between a raised and a lowered position, and a stop assembly 22 rotatably attached to the base frame and slidably attached to the seat frame, slidable between an unlocked position when the seat frame is in the first position, and a locked position when the seat frame is in the second position and the back frame is in the raised position. When the back frame is in the lowered position part of the back frame inhibits the stop assembly from locking, preventing the seat frame from moving to the second position, and when the stop assembly is in the locked position a portion of the stop assembly inhibits the back frame from moving into the lowered position. The arrangement prevents a user (for example, a patient or disabled person) from putting the chair into a configuration where their legs are above their head (a Trendelenburg position).

Description

A RECLINING MECHANISM
FIELD OF INVENTION
The present invention relates to a reclining mechanism. Reference will be made in the specification to the use of the invention with respect to reclining chairs. The patent specification describes this use but it is by way of example only and the invention is not limited to this use.
BACKGROUND OF THE INVENTION
Reclining chairs are used for people with limited mobility to relieve pressure. Some chairs provide a tiltable seat portion to provide leg elevation.
A problem with multi positional reclining chairs is that some positions can be dangerous to an occupant sitting in the chair. In particular, a chair could be inadvertently reclined and tilted such that an occupant’s head would be in a Trendelenburg position (below the heart and elevated legs) which if left unattended can be dangerous. Additionally, in such a position, the occupant could slide out of the chair if left unattended.
This problem has been solved by the prior art by limiting the amount that the back portion is able to recline so that the back portion is unable to recline to a fully horizontal position.
OBJECT OF THE INVENTION
It is an object of the present invention to overcome or at least alleviate one or more of the abovementioned problems with reclining chairs and/or provide the consumer with a useful or commercial choice.
SUMMARY OF THE INVENTION
In one aspect, the present invention broadly resides in a reclining mechanism for a reclining chair including a base frame;
a seat frame rotatably attached to the base frame, the seat frame movable between a first position and a second position in which a front portion of the seat frame is raised relative to the front portion in the first position;
-2a back frame rotatably attached to the seat frame and movable between a raised position and a lowered position; and a stop assembly rotatably attached relative to the base frame and slidably attached to the seat frame for slidable movement between an unlocked position when the seat frame is in the first position, and a locked position when the seat frame is in the second position and the back frame is in the raised position, wherein when the back frame is in the lowered position a portion of the back frame inhibits the stop assembly from moving to the locked position, inhibiting the seat frame from moving to the second position, and wherein when the stop assembly is in the locked position a portion of the stop assembly inhibits the back frame from moving into the lowered position.
The base frame preferably includes wheels which allow the reclining chair to be moved. The base frame is preferably made substantially from tubular material. Preferably the tubular material is tubular steel.
The base frame preferably includes a mount to which the stop assembly is rotatably attached.
The base frame preferably includes at least one hinge to which the seat frame is attached. More preferably the base frame includes two hinges to which the seat frame is attached. The two hinges are preferably attached towards lateral sides of the base frame. The mount is preferably located lower than the at least one hinge.
The seat frame is preferably adjustably attached to the base frame. More preferably, the seat frame is selectively lockable relative to the base frame. Preferably the reclining mechanism includes a locking mechanism to selectively lock the seat frame in position relative to the base frame. Preferably a seat support is attached to the seat frame. Preferably the seat support includes a seat cushion. In one embodiment, the seat frame includes a seat support. In another embodiment, the seat support includes adjustable air cushioning. In a further embodiment, the seat support includes a dynamic air cushion, a static polyurethane foam, or a gel cell.
The seat frame preferably includes at least one mounting portion to which the back frame is rotatably attached. The seat frame preferably includes a portion to which the stop assembly is slidably attached. In one embodiment, the stop assembly is slidably attached to one of the at least one mounting portion. Preferably
-3the at least one mounting portion is two mounting portions. Preferably the two mounting portions are attached towards lateral sides of the seat frame.
The seat frame preferably includes at least one side member. The at least one side member preferably inhibits an occupant from sliding sideways off the seat support. Preferably the at least one side member is two side members located on lateral sides of the seat frame. Preferably the at least one side members is selectively attachable to the seat frame. Preferably each of the at least one side member is a side bumper.
Preferably, the stop assembly includes an elongate member. The elongate member is preferably rotatably attached relative to the base frame. More preferably the elongate member is rotatably attached to the mount. The stop assembly preferably includes a sliding portion which is slidably attached to the seat frame. The stop assembly is preferably slidably attached to one of the at least one mounting portion. More preferably, the sliding portion is slidably attached to one of the at least one mounting portion. Preferably the elongate member is rotatably connected to the sliding portion.
Preferably the reclining mechanism includes a second stop assembly. Preferably the second stop assembly operates in substantially the same manner as the stop assembly. Preferably the second stop assembly is rotatably attached relative to the base frame and slidably attached to the seat frame for slidable movement between an unlocked position when the seat frame is in the first position, and a locked position when the seat frame is in the second position and the back frame is in the raised position, wherein when the back frame is in the lowered position a portion of the back frame inhibits the second stop assembly from moving to the locked position, inhibiting the seat frame from moving to the second position, and wherein when the second stop assembly is in the locked position a portion of the second stop assembly inhibits the back frame from moving into the lowered position.
The second stop assembly is preferably rotatably attached to a second mount on the base frame. The second stop assembly is preferably slidably attached to one of the at least one mounting portion.
Preferably, the second stop assembly includes an elongate member. The elongate member is preferably rotatably attached relative to the base frame. More preferably the elongate member is rotatably attached to the second mount. The second stop assembly preferably includes a sliding portion which is slidably attached
-4to the seat frame. Preferably, the sliding portion is slidably attached to one of the at least one mounting portion. Preferably the elongate member is rotatably connected to the sliding portion.
The back frame is preferably adjustably attached to the seat frame. More preferably, the back frame is selectively lockable relative to the seat frame. Preferably the reclining mechanism includes a locking mechanism to selectively lock the back frame in position relative to the seat frame. Preferably a back support is attached to the back frame. Preferably the back support includes a back cushion. In one embodiment, the back frame includes a back support. In another embodiment, the back support includes adjustable air cushioning. In a further embodiment, the back support includes a dynamic air cushion, a static polyurethane foam, or a gel cell.
The back frame preferably includes at least one side member. The at least one side member preferably inhibits an occupant from sliding sideways off the back support. Preferably the at least one side member is two side members located on lateral sides of the back frame. Preferably the at least one side members is selectively attachable to the back frame. Preferably each of the at least one side member is a side bumper.
Preferably a portion of the back frame is shaped to abut the stop assembly in the locked position. Preferably the portion of the back frame adapted to abut the stop assembly in the locked position is located in proximity to the where the back frame is rotatably attached to one of the at least one mounting portion on the seat frame. Preferably a portion of the back frame is shaped to abut the second stop assembly in the locked position. Preferably the portion of the back frame adapted to abut the second stop assembly in the locked position is located in proximity to the where the back frame is rotatably attached to one of the at least one mounting portion on the seat frame.
Preferably reclining mechanism further includes a leg frame rotatably attached to the seat frame. The leg frame is preferably adjustably attached to the seat frame. More preferably, the leg frame is selectively lockable relative to the seat frame. Preferably the reclining mechanism includes a locking mechanism to selectively lock the leg frame in position relative to the seat frame. Preferably a leg support is attached to the leg frame. Preferably the leg support includes a leg cushion. In one
-5embodiment, the leg frame includes a leg support. In another embodiment, the leg support includes adjustable air cushioning.
In another aspect, the present invention broadly resides in a reclining chair having a reclining mechanism, the reclining mechanism including a base frame;
a seat frame rotatably attached to the base frame, the seat frame movable between a first position and a second position in which a front portion of the seat frame is raised relative to the front portion in the first position;
a back frame rotatably attached to the seat frame and movable between a raised position and a lowered position; and a stop assembly rotatably attached relative to the base frame and slidably attached to the seat frame for slidable movement between an unlocked position when the seat frame is in the first position, and a locked position when the seat frame is in the second position and the back frame is in the raised position, wherein when the back frame is in the lowered position a portion of the back frame inhibits the stop assembly from moving to the locked position, inhibiting the seat frame from moving to the second position, and wherein when the stop assembly is in the locked position a portion of the stop assembly inhibits the back frame from moving into the lowered position.
In a further aspect, the present invention broadly resides in a method of using a reclining mechanism as described in the specification, including the steps of moving the seat frame to the second position, causing the stop assembly to move to the locked position and preventing the back frame from moving to the lowered position;
moving the seat frame to the first position, causing the stop assembly to move to the unlocked position; and moving the back frame to the lowered position, preventing the stop assembly from moving to the locked position and preventing the seat frame from moving to the second position.
Preferably the method further includes the step of securing the position of the seat frame relative to the base frame.
Preferably the method further includes the step of securing the position of the back frame relative to the seat frame.
-6Preferably the method further includes the step of attaching side members to the seat frame.
Preferably the method further includes the step of attaching side members to the back frame.
The features described with respect to one aspect also apply where applicable to all other aspects of the invention. Furthermore, different combinations of described features are herein described and claimed even when not expressly stated.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that the present invention can be more readily understood reference will now be made to the accompanying drawings which illustrate a preferred embodiment of the invention and wherein:
Figure 1 is a schematic view of a reclining mechanism according to an embodiment of the present invention;
Figure 2 is a side view of the reclining mechanism of Figure 1;
Figure 3 is a detailed view of the stop assembly of Figure 1 in the locked position;
Figure 4 is a side view of the stop assembly of Figure 3;
Figure 5 is a perspective view of the stop assembly of Figure 3;
Figure 6 is a view of the reclining mechanism of Figure 1 with the back frame in a lowered position;
Figure 7 is a detailed view of the stop assembly of Figure 6 in the unlocked position;
Figure 8 is a side view of the stop assembly of Figure 6;
Figure 9 is a detailed view of the stop assembly of Figure 1 when the seat frame is in a substantially horizontal orientation;
Figure 10 is a perspective view of the stop assembly of Figure 9;
Figure 11 is a perspective view of the reclining mechanism of Figure 1 when the seat frame is in a substantially horizontal orientation;
Figure 12 is a side view of the reclining mechanism of Figure 11;
Figure 13 shows a reclining chair having a reclining mechanism as shown in Figure 1 with the back frame in the lowered position;
-7 Figure 14 is a perspective view of the reclining chair of Figure 13 with the side panels removed for clarity; and
Figure 15 is a side view of a reclining chair having a reclining mechanism as shown in Figure 1 with the back frame in the raised position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to Figures 1 to 5, there is shown a reclining mechanism 10 according to an embodiment of the present invention. The reclining mechanism 10 includes a base frame 12. A seat frame 14 is rotatably attached to the base frame 12 by hinges 16. The seat frame 14 is movable between a first position and a second position (shown) in which a front portion of the seat frame is raised relative to the front portion in the first position.
A back frame 18 is rotatably attached to the seat frame 14 by mounting portions 20. The back frame is movable between a raised position (shown) and a lowered position.
A stop assembly 22 and a second stop assembly 24 are rotatably attached to mounts 26 on the base frame 12. The stop assembly 22 has an elongate member 28 that is rotatably attached to mount 26, and a sliding portion 30 which is slidably attached to the mounting portion 20. Mounting portion 20 includes a slot 32 along which the sliding portion 30 can slide. The elongate member 28 is rotatably attached to the sliding portion 30. The sliding portion 30 is slidable between unlocked position when the seat frame 14 is in the first position, and a locked position (shown) when the seat frame 14 is in the second position (shown) and the back frame is in the raised position (shown). The sliding portion 30 is shaped to abut a portion of the back frame 18 in the locked position inhibiting the back frame 18 from moving into the lowered position. The second stop assembly 24 works in a similar manner to stop assembly 22.
With reference to figures 6 to 8, there is shown a reclining mechanism 10 with the seat frame 14 in the first position, and the back frame 18 in a lowered position. With the seat frame 14 in this position, the sliding portion 30 is in an unlocked position (shown), and the back frame 18 can be moved into the lowered position (shown). In this position, when the back frame 18 is in the lowered position a portion of the back frame 18 inhibits the sliding portion 30 from moving to the locked position, inhibiting the seat frame 14 from moving to the second position.
-8As can be seen in Figure 6 to 8, a front portion of the seat frame 14 is lower than a rear portion of the seat frame 14, in this position, the reclined back frame 18 and the seat frame 14 are not horizontal and retain an occupant (not shown) in a position where the occupant’s head is above a level of their heart and feet.
With reference to figures 9 to 12, there is shown a reclining mechanism 10 with the seat frame 14 in a horizontal position relative to the base frame 12. In this position, the sliding portion 30 extends beyond a hinge point 34 where the back frame 18 is rotatably attached to the seat frame 14. In this position the sliding portion 30 prevents the back frame 18 from reclining to a fully horizontal position.
With reference to figures 13 and 14, there is shown a reclining chair 40 having a reclining mechanism 10. An occupant 60 is located on the reclining chair 40. The reclining chair 40 includes a seat support in the form of a seat cushion 42 attached to the seat frame 14. The reclining chair 40 includes a back support in the form of a back cushion 44 attached to the back frame 18. The reclining chair 40 includes a leg support in the form of a leg cushion 46 attached to a leg frame (not shown).
As can be seen in figures 13 and 14 the reclined back frame 18 and the seat frame 14 are not horizontal and retain the occupant 60 in a position where the occupant’s head is above a level of their heart and feet.
Figure 13 shows a side member in the form of a side bumper 48 attached to the seat frame 14 and a side member in the form of a side bumper 50 attached to the back frame 18. The side bumpers 48,50 inhibit the occupant 60 from falling sideways of the reclining chair 40. Additional side bumpers (not shown) are attached to the other side in a similar manner.
With reference to Figure 15, there is shown a reclining chair 40 with the seat frame 14 in a horizontal position. In this position, the sliding portion 30 extends beyond a hinge point 34 where the back frame 18 is rotatably attached to the seat frame 14. In this position the sliding portion 30 prevents the back frame 18 from reclining to a fully horizontal position.
ADVANTAGES
An advantage of the preferred embodiment of the reclining mechanism includes preventing the back portion from reclining to a position in which an occupants head would be in a Trendelenburg position. Another advantage of the preferred embodiment of the reclining mechanism includes the ability to recline to a
-9full or substantially horizontal orientation. A further advantage of the preferred embodiment of the reclining mechanism includes being able to tilt the seat portion to elevate an occupant’s legs when it is safe to do so.
VARIATIONS
While the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth.
Throughout the description and claims of this specification the word “comprise” and variations of that word such as “comprises” and “comprising”, are not intended to exclude other additives, components, integers or steps.

Claims (20)

1. A reclining mechanism for a reclining chair including a base frame;
a seat frame rotatably attached to the base frame, the seat frame movable between a first position and a second position in which a front portion of the seat frame is raised relative to the front portion in the first position;
a back frame rotatably attached to the seat frame and movable between a raised position and a lowered position; and a stop assembly rotatably attached relative to the base frame and slidably attached to the seat frame for slidable movement between an unlocked position when the seat frame is in the first position, and a locked position when the seat frame is in the second position and the back frame is in the raised position, wherein when the back frame is in the lowered position a portion of the back frame inhibits the stop assembly from moving to the locked position, inhibiting the seat frame from moving to the second position, and wherein when the stop assembly is in the locked position a portion of the stop assembly inhibits the back frame from moving into the lowered position.
2. A reclining mechanism as claimed in claim 1, wherein the base frame includes a mount to which the stop assembly is rotatably attached.
3. A reclining mechanism as claimed in claim 2, wherein the base frame includes at least one hinge to which the seat frame is attached.
4. A reclining mechanism as claimed in claim 3, wherein the mount is located lower than the at least one hinge.
5. A reclining mechanism as claimed in any one of the preceding claims, wherein the seat frame is adjustably attached to the base frame.
6. A reclining mechanism as claimed in claim 5, wherein the seat frame is selectively lockable relative to the base frame.
7. A reclining mechanism as claimed in any one of the preceding claims, wherein the seat frame includes or is attached to a seat support.
8. A reclining mechanism as claimed in claim 7, wherein the seat support includes a seat cushion, adjustable air cushioning, a dynamic air cushion, a static polyurethane foam, or a gel cell.
9. A reclining mechanism as claimed in any one of the preceding claims, wherein the stop assembly includes an elongate member, the elongate member rotatably attached relative to the base frame.
10. A reclining mechanism as claimed in claim 9, wherein the stop assembly includes a sliding portion which is slidably attached to the seat frame, and wherein the elongate member is rotatably connected to the sliding portion.
11. A reclining mechanism as claimed in any one of the preceding claims, wherein the back frame includes or is attached to a back support.
12. A reclining mechanism as claimed in claim 11, wherein the back support includes a back cushion, adjustable air cushioning, a dynamic air cushion, a static polyurethane foam, or a gel cell.
13. A reclining mechanism as claimed in any one of the preceding claims, wherein the seat frame includes at least one side member adapted to inhibit an occupant from sliding sideways off the seat support, and wherein the at least one side member is selectively attachable to the seat frame.
14. A reclining mechanism as claimed in any one of the preceding claims, wherein the back frame includes at least one side member, adapted to inhibit an occupant from sliding sideways off the back support, and wherein the at least one side member is selectively attachable to the back frame.
15. A reclining mechanism as claimed in any one of the preceding claims, further including a leg frame rotatably attached to the seat frame, the leg frame being
- 12adjustably attached to the seat frame and selectively lockable relative to the seat frame.
16. A reclining mechanism as claimed in any one of the preceding claims, wherein the base frame is made substantially from tubular material.
17. A reclining chair having a reclining mechanism, the reclining mechanism including a base frame;
a seat frame rotatably attached to the base frame, the seat frame movable between a first position and a second position in which a front portion of the seat frame is raised relative to the front portion in the first position;
a back frame rotatably attached to the seat frame and movable between a raised position and a lowered position; and a stop assembly rotatably attached relative to the base frame and slidably attached to the seat frame for slidable movement between an unlocked position when the seat frame is in the first position, and a locked position when the seat frame is in the second position and the back frame is in the raised position, wherein when the back frame is in the lowered position a portion of the back frame inhibits the stop assembly from moving to the locked position, inhibiting the seat frame from moving to the second position, and wherein when the stop assembly is in the locked position a portion of the stop assembly inhibits the back frame from moving into the lowered position.
18. A method of using a reclining mechanism as described in the specification, including the steps of moving the seat frame to the second position, causing the stop assembly to move to the locked position and preventing the back frame from moving to the lowered position;
moving the seat frame to the first position, causing the stop assembly to move to the unlocked position; and moving the back frame to the lowered position, preventing the stop assembly from moving to the locked position and preventing the seat frame from moving to the second position.
19. A method as claimed in claim 18, further including the step of securing the position of the seat frame relative to the base frame.
5
20. A method as claimed in claim 18 or claim 19, further including the step of securing the position of the back frame relative to the seat frame.
GB1906601.8A 2018-05-17 2019-05-10 A reclining mechanism Withdrawn GB2575343A (en)

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AU2018901723A AU2018901723A0 (en) 2018-05-17 A reclining mechanism

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060186718A1 (en) * 2005-02-18 2006-08-24 Griepentrog Dennis G Reclining and convertible seating furniture with trendelenburg feature
US9743770B1 (en) * 2013-10-01 2017-08-29 Golden Technologies, Inc. Multi-positioning recliner chair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060186718A1 (en) * 2005-02-18 2006-08-24 Griepentrog Dennis G Reclining and convertible seating furniture with trendelenburg feature
US9743770B1 (en) * 2013-10-01 2017-08-29 Golden Technologies, Inc. Multi-positioning recliner chair

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AU2019203440A1 (en) 2019-12-05

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