EP0836821A2 - Tragbarer Sitz und Kniestütze - Google Patents

Tragbarer Sitz und Kniestütze Download PDF

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Publication number
EP0836821A2
EP0836821A2 EP97307818A EP97307818A EP0836821A2 EP 0836821 A2 EP0836821 A2 EP 0836821A2 EP 97307818 A EP97307818 A EP 97307818A EP 97307818 A EP97307818 A EP 97307818A EP 0836821 A2 EP0836821 A2 EP 0836821A2
Authority
EP
European Patent Office
Prior art keywords
knee
rest
seat
leg
user
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Withdrawn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
EP97307818A
Other languages
English (en)
French (fr)
Other versions
EP0836821A3 (de
Inventor
Michael Iaverdino
Janusz Lucien Holland
Mark Christopher Hughes
Colin Parks
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.)
Kneel Easy Ltd
Original Assignee
Kneel Easy 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
Application filed by Kneel Easy Ltd filed Critical Kneel Easy Ltd
Publication of EP0836821A2 publication Critical patent/EP0836821A2/de
Publication of EP0836821A3 publication Critical patent/EP0836821A3/de
Withdrawn legal-status Critical Current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
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools; Workshop stools
    • A47C9/027—Stools for work at ground level
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
    • A47C9/005—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects with forwardly inclined seat, e.g. with a knee-support

Definitions

  • the present invention relates to an improved portable seat and knee-rest apparatus particularly for use when kneeling to work.
  • a variety of jobs require a person to crouch or kneel in order to carry out the work in hand, for example, house maintenance jobs such as plumbing and decorating, car maintenance and gardening.
  • house maintenance jobs such as plumbing and decorating, car maintenance and gardening.
  • This position puts strain on a person's knees and/or lower back which can lead to muscular tensions with possible long term effects on a person's health and fitness.
  • the use of a small, low level stool to sit on and a cushion for kneeling on are often employed for such purposes but are far from satisfactory.
  • a device which provides both a seat and knee-rest for working at low levels is described in European Patent Application No. 92860015.2.
  • This comprises an adjustable J-frame having at its respective ends a transversal knee-supporting panel and a transversal seat supporting panel, the knee-supporting panel being pivotally connected to the frame.
  • the device may also be provided with straps for securement to the leg of the user.
  • the pivotal knee-supporting panel is intended to accommodate bending at the knee when the user moves between an upright and a kneeling position.
  • knee-supporting panel is also engaged by the upper end of the tibia as well as the knee-cap and it has been found that the use of a single knee-supporting panel can inhibit relative movement therebetween and that this may give rise to user discomfort.
  • An aim of the present invention is to provide an improved seat and knee-rest apparatus for use when kneeling to work.
  • the present invention provides a portable seat and knee-rest apparatus for attachment to a leg of a person for use when kneeling to work, the apparatus comprises a frame carrying in spaced relation a seat member and a knee-rest, in use, the seat member provides support for a buttock of the user and the knee-rest is engaged by the lower leg and the knee of the user, means is provided to secure the apparatus to the user, and characterised in that the knee-rest comprises two or more relatively movable parts.
  • the knee-rest compnses two parts, one of which is fixedly secured to the frame and the other is movable with respect to the said one part.
  • relative movement between the two parts of the knee-rest is by means of a hinge which affords pivoting of one part with respect to the other. Pivoting is usually in response to bending of the leg.
  • the part which is fixed to the frame is usually contacted by the upper end of the tibia, whilst the pivotal part is contacted by the knee-cap.
  • the knee-rest section is preferably attached to the free end of the long limb of the L-shaped members.
  • the two parts of the knee-rest are attached to one another by means of a living hinge, ie. a thin area of flexible plastics material. Padding is provided on the knee-rest parts for cushioning purposes.
  • the framework preferably comprises two parallel profiled substantially L-shaped members, the long limb of the members being positioned at either side of the leg when the device is secured to the user.
  • the long limbs of the framework are arcuate to follow the curve of the lower part of the person's leg.
  • the seat member is preferably attached between ends of the short limb of the L-shaped members.
  • the seat member is attached to the end of the short limb nearest the long limb of the L-shaped members with the free ends of the short limb of the members providing legs for supporting the seat when the apparatus is in use.
  • the free ends of the short limbs taper outwards to provide a foot for enhanced stabilisation of the device when in the operative position.
  • the seat member is preferably a moulded component supported between two spaced-apart legs extending perpendicularly therefrom for attachment to the framework.
  • the upper surface of the seat member is preferably provided with padding for cushioning purposes.
  • a foam plastics material is preferred. It may be fabric-covered.
  • the height of the seat member is adjustable, for example by the provision of a series of complementary holes in the legs of the seat member and the framework which holes may be aligned and the components secured at the required height by retaining means received in the aligned holes.
  • the underside of the seat member is profiled to form a reception location, for example, an arch to received the user's leg.
  • the reception location may be provided with padding to cushion the leg/heel of the user when the device is in use.
  • the knee-rest parts are preferably moulded components. Indeed, preferably all the individual components, ie. the parts of the knee-rest, seat member and framework are moulded components of a reinforced plastics material.
  • the framework may be secured to the leg of the user by any suitable means.
  • adjustable straps are used, for example being secured using buckles or Velcro (registered trade mark).
  • the straps are preferably positioned to secure the framework around the ankle and just below the knee of the user. In this manner the device may be carried along with the user when moving to a new work position.
  • the apparatus is portable and comprises a seat member 4 and an articulated knee-rest section 6 which are spaced apart from one another and are secured with respect to a framework 8.
  • the seat member and knee-rest are provided with padding 10 to cushion a buttock and knee of the user when the apparatus is in use.
  • Adjustable straps 12a, 12b are provided to secure the apparatus to the leg of the user.
  • knee it will be understood that we refer to that portion of the leg which normally contacts the ground when kneeling and that this usually includes the upper end of the tibia and the knee-cap.
  • knee-rest is engaged by these parts.
  • the framework 8 is made up of two parallel profiled substantially L-shaped members, the free end of the long limb 7 having attached to it the knee-rest 6 and the ends of the short limb 9 nearest the long limb 7 (in the illustrated embodiment) having connected thereto the seat member 4.
  • the long limb is arcuate such that it follows the natural curve of the leg of the user when the device is in use (see Figures I and 3) and is attached to the knee-rest by retaining means 16.
  • the short limb 9 of the L-shaped frame member is wider than the long limb 7.
  • the free ends of the short limbs opposite the ends attached to the seat section provide ground engaging legs 18 for supporting the seat and taper outwards to form a wider base area or foot 20. This assists in stabilisation of the device when in use.
  • Gripping means may also be provided on the underside of the base area to prevent movement of the device when in use.
  • the seat member 4 is a moulded plastics component comprising a transverse seat element 21 supported between two, spaced-apart legs 22 extending perpendicularly therefrom for attachment to the L-shaped members (see Figure 4).
  • the height of the seat member 4 is relative to the ground engaging foot is adjustable to enable a satisfactory height to be chosen by the user of the device. Adjustment may be by the provision of a series of complementary holes 30 in the legs 22 of the seat member and the short limbs 9 of the members 5 which may be aligned and secured at the required height by suitable retaining means.
  • the transverse seat region has padding 10, such as foam, which may be fabric covered, on its upper surface to enhance the comfort for the user.
  • transverse seat region may be varied, but preferably is rectangular with a slightly curved surface.
  • the legs 22 of the seat member preferably converge towards to the transverse seat region 21 to provide a reception location 40 (shown as an inverted V-shape in Figure 2).
  • the reception location may also be provided with padding 10 to cushion the back of the leg/heel of the user.
  • the leg is held in contact with the padded surface by strapping 12.
  • the knee-rest 6 of the apparatus comprises two parts 6a and 6b hingedly mounted with respect to one another.
  • the parts are joined by means of a living hinge 52 consisting of a region where the plastics material of the two sections is substantially reduced in thickness to enable the bending of the material. This allows the part 6b to pivot with respect to part 6a as denoted by arrow A.
  • the smaller part 6a of the knee-rest is attached non-movably to the long limb 9 of the framework by retaining means 60. Both sections carry resilient padding for cushioning purposes. A foam plastics material is preferred.
  • An adjustable strap 12b having buckles 14a and 14b is provided on the smaller part 6a to secure the apparatus to the leg of the user by passing around the back of the knee.
  • the buckles connect with headed pins 15a, 15b respectively.
  • the user In operation, the user is able to balance his weight between the seat 4 and knee-rest 6 depending on the operation being performed. If the user has to move to a new working position, the apparatus can remain attached to the leg such that it is carried along with the user.
  • moulded lightweight reinforced plastics components for the portable seat and knee-rest apparatus of the present invention result in a less bulky and heavy device than was available prior hereto.
  • the individual components may also be replaced independently of one another if required, for example due to damage or wear and tear.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Special Chairs (AREA)
EP97307818A 1996-10-18 1997-10-03 Tragbarer Sitz und Kniestütze Withdrawn EP0836821A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9621721.1A GB9621721D0 (en) 1996-10-18 1996-10-18 An improved portable seat and knee-rest apparatus
GB9621721 1996-10-18

Publications (2)

Publication Number Publication Date
EP0836821A2 true EP0836821A2 (de) 1998-04-22
EP0836821A3 EP0836821A3 (de) 2000-03-01

Family

ID=10801622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97307818A Withdrawn EP0836821A3 (de) 1996-10-18 1997-10-03 Tragbarer Sitz und Kniestütze

Country Status (3)

Country Link
EP (1) EP0836821A3 (de)
JP (1) JPH10309216A (de)
GB (1) GB9621721D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003000093A1 (en) * 2001-06-22 2003-01-03 The Government Of The United States Of America As Represented By The Secretary, Department Of Healthand Human Services, Centers For Disease Control And Prevention Wearable kneel-sit support device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100955565B1 (ko) 2008-02-14 2010-04-30 영진전문대학 산학협력단 좌식 작업용 다리 보조 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU610826B2 (en) * 1986-06-03 1991-05-30 Hans C. Mengshoel Support device
US5038761A (en) * 1990-04-02 1991-08-13 Richardson Beverly J Therapeutic apparatus for physically impaired children

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003000093A1 (en) * 2001-06-22 2003-01-03 The Government Of The United States Of America As Represented By The Secretary, Department Of Healthand Human Services, Centers For Disease Control And Prevention Wearable kneel-sit support device
US7152919B2 (en) 2001-06-22 2006-12-26 The United States Of America As Represented By The Department Of Health And Human Services, Centers For Disease Control And Prevention Wearable kneel-sit support device

Also Published As

Publication number Publication date
EP0836821A3 (de) 2000-03-01
GB9621721D0 (en) 1996-12-11
JPH10309216A (ja) 1998-11-24

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