EP0804134B1 - Assise elevatrice pour siege de toilettes - Google Patents

Assise elevatrice pour siege de toilettes Download PDF

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Publication number
EP0804134B1
EP0804134B1 EP94917070A EP94917070A EP0804134B1 EP 0804134 B1 EP0804134 B1 EP 0804134B1 EP 94917070 A EP94917070 A EP 94917070A EP 94917070 A EP94917070 A EP 94917070A EP 0804134 B1 EP0804134 B1 EP 0804134B1
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EP
European Patent Office
Prior art keywords
spring
rising seat
top section
seat
springs
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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 - Lifetime
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EP94917070A
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German (de)
English (en)
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EP0804134A1 (fr
Inventor
John Bernard Paxon
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Individual
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Individual
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Priority claimed from PCT/GB1994/001134 external-priority patent/WO1995031953A1/fr
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  • the present invention relates to a rising seat for chairs and settees and which can be readily adapted for use on toilets for handicapped people.
  • Most rising seats or lift seats by which name they are widely known are fitted to a frame on a chair and are operated by a spring or gas mechanism the angle and bulk of which is easily fitted into an existing chair where ample space permits bulky and at times heavy mechanisms to be used, and they are usually assembled during the manufacture of the furniture for which they are designed.
  • T.Wear Smith GB-A-2193886 teaches a torsion spring the end of which is coiled around and fixed to two torsion bars one being moveable by threading a bolt into the bar to move the bar and force spring upwards to increase its tension.
  • Renray GB-A-1578395 teaches a number of springs one leg of each having fixed to it an adjustment means, the selected springs being inoperable by inserting a screw into adjustment means and forcing the spring leg/s away from the pivoted seat, thereby adjusting the resilience required for a pre-determined load.
  • the advantage of a portable lift seat providing it is fairly simple in its construction and which can be adjusted easily by the user to suit his weight without the need to have a supply of additional springs or other parts to fix to the riser seat, and which can be kept stable on a chair seat for example, include : the practical and economic aspects of using an existing chair without having to purchase a more expensive chair with built-in lift- seat mechanism and, being portable and easily adjustable preferably, it can be used in most chairs in the users house, and can even be carried on a journey for use in seating provided by other people.
  • the current invention is easily adjustable without the use of a tool whether permanently or releaseably fixed to a chair or settee.
  • the object of the invention is to provide a rising seat and one that raises the sitter easily from a sitting position and which lowers him gently into a sitting position from a standing position and which can be so located on an existing seat in a manner to ensure its stability when in use and one that can be readily adapted to suit the weight of most users, without removal or replacement of working parts.
  • a rising seat for seating and toilets comprising in combination at least one torsion spring on a torsion bar, each leg of any selected spring being activated by its at least indirect contact with the inside surface of the rising seat's top and bottom sections said sections being pivotly-hinged together, and a means of rendering any selected number of springs ineffective by removing the pressure from the spring legs and then positioning a leg of each spring not required into one of any number of openings localised on at least one of the sections, such positioning/s preventing the top section from activating the said-positioned springs and so governing the degree of ease at which the top section is lowered on to the bottom section and enabling the user to select only the spring/s required to render the top section resilient enough to lower him gently into a sitting position and to raise him from a sitting position to a standing position.
  • the degree of ease at which the top section is lowered may be governed by moving the torsion bar on which the spring/s is/ are placed, and the mechanism can be applied to a lift seat permanently fixed to seating or toilets. It incorporates a means of lowering the top section on to the bottom section free of resilience, for carrying if portable, or to give the appearance of a standard seat.
  • the rising seat may have attached to its surface a suitable carrying handle. It may have a method of locking it down against the resilience of the spring and a method of adjustment to enable it to remain stable and effective irrespective of the width and depth of the seat in which it is placed.
  • FIG 1 is a side view of rising seat in a low position when not in use.
  • FIG 2 is a bottom underside view in perspective of top section of a rising seat that shows method of adjustment to a neutral position that enables top section to be lowered without resilience from the spring/s.
  • FIG 3 shows an open plan view in which a spring leg travels into a cavity over which it has been positioned when pressure is away from the spring leg, the cavity being in the top section, said cavity being covered.
  • FIG 4 is an underside view of top section opened out to expose both sections shows method of substituting a weaker spring mechanism for example for a stronger one.
  • FIG 5 is an underside view when top section is opened out with the bottom section of the rising seat. Neutralising the torsion spring is shown by moving the torsion bar on which the spring/s is/are located.
  • FIG 6 is an underside view - shows the method of increasing or decreasing the strength of a torsion spring.
  • FIG 7 is a side view open plan of torsion bar fixed away from edge of bottom section.
  • FIG 8 is a top view of method of determining the ease at which top section can be lowered using sliding base.
  • FIG 9 is a side view of hollowed out top section hinged on bottom section, or directly on to toilet.
  • FIG 10 shows a side view in open plan of rising seat located in a chair by tongue-shaped extension to the bottom section.
  • FIG 11 shows an open plan view of chair from front with bottom section of rising seat incorporating extended sides shaped to fit under arms of chair.
  • FIG 12 shows an underside view of bottom section with extendable sides to fit a wide chair.
  • FIG 1 shows seat 1 folded for carrying.
  • the top section 2 of the rising seat shown as 2 may be lowered or folded or hinged down on to the bottom section 3 after neutralizing the resilient action of the torsion spring that in its'active' or positive mode is used to enable the user to lower himself gently on to the chair, the top section of the seat pivoting against the resilience of the said spring that also enables the sitter to raise himself from a sitting to a standing position.
  • Pressure may be released from the spring by moving a part of the top and bottom sections away from the spring/s. Hinge is 4.
  • Neutralizing the resilience of the spring is shown in FIGS 2 and 4.
  • the hinge-pin 4 also acts as a torsion bar that is circular and rests across the ends of either section of the riser seat.
  • any selected number of torsion springs 5 are placed over the bar.
  • the main body of the spring so coiled to leave ample room for contraction as weight is applied to the ends of the spring, one leg of each spring coming into contact at least indirectly with the inner face of the top section and the other leg coming into contact at least indirectly with the bottom section 3 as weight is applied and the top section 2 is pivoted downwards towards the bottom section.
  • the angle of the torsion spring 5 is such that when the top section is opened outwards to form a configuration similar to that of an open book the spring/s can be moved along the torsion bar unhindered by the pressure of either board or section.
  • the spring leg drops into the cavity 6 - See FIG 2 - the spring then has no surface against which it can be pressed to give the spring and the top board resilience when the top section is lowered so that the top section can thus be freely lowered to rest on the bottom section enabling it to be easily carried or to be placed in a chair without the top section being raised.
  • the cavity 6 may be covered on the opposite surface of the rising seat 1 this being shown in FIG 3 - so that the leg of the spring does not dig into the face of the rising seat cover.
  • the spring leg can be covered by a dome-shaped cover 7 that can be placed either over the area where the spring leg 5 would otherwise protrude or the whole of the top surface 2 of the rising seat as seen can be covered and then upholstered over the hard surface of a larger dome-shaped cover 7.
  • the method of neuttralizing the effect of the spring can also be used for adjusting the resilience of the top section of the rising seat either by having blind-hole cavities of different depths that will decrease the tension of a spring by lengthening the distance between the end of the leg or point of contact of a spring in relation to the top section or by neutralizing totally the resilience of a selected number of springs of varying strengths, and positioning only that spring or springs of a predetermined strength so that it/ they become resilient only if its/their legs are positioned away from the cavities & on to a firm surface of the board around the said cavities.
  • each set can be a different thickness and strength.
  • Two sets 8 & 9 can be located with their legs over holes 10 & 11 so that they cannot be under resilience when the top section 2 of the rising seat shown is pressed down by the weight of the user, leaving the selected spring set 12 only to to be compressed on to the inner surface of one of the boards 3 as the top section board is lowered, the pressure of the board activating the resilience of the spring set 12 selected for the resilience needed to suit the weight of the user; the selection of the springs can either be numerical or by thickness of the spring/s that could be calibrated to suit a variance in body weights.
  • the spring can instead be located on the torsion bar 4 so that when the torsion bar or hinge-pin, if also used as a hinge-pin, on which the top section pivots on the bottom section, is moved one way or the other, it carries with it at least one spring that can, with the two boards opened out and free of pressure of the spring legs in that opened out position, be located over a cavity, so that when the top section is lowered on to the bottom section 3 no resilience is felt from that spring or set of springs in the cavities. Movement of the springs for adjustment or neutralizing the tension can be assisted by small rollers 13 on the spring legs if springs are near to the boards. Grooves are shown as 14 into which spring leg is placed to prevent slippage as shown in FIGS 4, 5 and 6.
  • FIG 5 An alternative method of creating a neutral position that enables the top section to be lowered without resilience from the spring or springs is to move a separate torsion bar 15 on which the springs 5 would be located towards the centre of the board; in which the torsion bar can be fitted in a guide 16 fitted to one of the boards.
  • the torsion bar 15 is moved, preferably in guides 16 to stabilise its movement, so one of the ends or legs of at least one spring, depending on the number of springs placed on the torsion bar, is drawn away from one of the boards thereby neutralising the effectiveness of the spring when the top section 2 is lowered on to the bottom section 3 of the aforesaid rising seat both spring legs of each spring resting over one board only.
  • the strengthening of individual torsion springs can be made by raising the spring 5 by locating at least one leg of the spring either directly or perhaps indirectly on a wedge-shaped base 18 with groove 14 that is moveable on the board by a screw mechanism 19 that holds the wedge in position under the spring when adjustment has been made as shown in FIG 6 in which the top section is 2, bottom section is 3, roller 13 and cavity is 6.
  • the top section 2 may be placed on a hinge 4a (See FIG 7).
  • the hinge being positioned two to four inches approximately away from the edge of the bottom section 3, that is to say the front edge, so that when the spring leg 5 travels through the cavity 6 the spring leg if in line or forming a large angle with its opposite leg will rest on the end of the bottom section when the top section is lowered freely without resilience from the spring, and will not jut out from the front of the rising seat.
  • the spring 5 when determining the degree of ease at which the top section 2 can be lowered on to the bottom section 3 of the rising seat shown, the spring 5 may be placed on the torsion bar 4 transversley, and spaced protrusions or blocks 20 on a sliding section 21 located under spring legs 5 selected by the user or they may be so moved away from the spring legs altogether so that the spring legs are positioned over gaps between the blocks so that when the top section is lowered on to the bottom section there is no resilience from the springs and it may be so folded down into a neutral position to facilitate its carrying. Gaps are shown as 22.
  • the blocks & gaps may be incorporated on a fixed section and the spring legs placed on to the blocks or over the gaps between the blocks as required by either sliding the springs along the torsion bar or by locating the springs to the torsion bar and moving the bar until the spring legs are aligned with the blocks or gaps between the blocks as required thereby determining the degree of ease at which the top section 2 can be lowered on to the bottom section 3.
  • the gaps may be formed from cut-outs in a solid block that may be fixed to the inside face of one of the sections that is to say the top or bottom section or may be located to slide on one of the sections for positioning spring legs in the latter construction that would preferably be fixed transversely along the torsion bar.
  • top section 2 When used as a toilet seat 23 there shall be an opening in the top and bottom sections and at least one spring leg under the seat rim, its opposite leg resting on the toilet edge or attachment thereto.
  • Top section 2, lower section 3 and hinge 4a See FIG 9).
  • the rising seat 1 is kept firmly fixed to a chair 24 by a tongue-shaped extension 25 attached to or being part of the bottom section 3 of the rising seat and the extension is wedged between the seat of the chair and the vertical back of the chair 24.
  • the same type of extension also shown as 25 in FIG 11 can be used to protrude over the chair seat and under the arm/s such room generally being found for that purpose in most lounge-type seating and also in many types of lighter seating and chairs in which the arms are filled in to the seat of the chair the extensions ideally being placed under such arm where the arm joins the chair seat and the said extensions being fixed one on each side of the rising seat .
  • the chair is shown as 24.
  • the bottom section 3 of the rising seat shown can be made adjustable by having an adjustable frame 26 for example that can be moved outwards into the sides and/or back of the chair 24 in which it is resting. This adjustment facility could be affectively utilised in a chair that might be otherwise too wide for the rising seat.
  • the sections may be padded with foam and covered by material tacked on to them.

Landscapes

  • Chairs Characterized By Structure (AREA)

Claims (25)

  1. Un siège à ressorts pour chaises, fauteuils et toilettes comprenant les éléments suivants combinés:
    (a) au moins un ressort de torsion (12) enroulé autour d'une barre de torsion (4) et dont les extremites sont en contact direct ou indirect avec la surface interne des parties, ici un panneau supérieur (2) et un panneau inférieur (3) du siège qui sont relies l'un a l'autre par une charnière qui leur permet de pivoter
    (b) et un système qui permet de rendre inéfficace un (ou plusieurs) ressort(s) en relevant la pression exercée sur les extrémités du celui-ci puis, en placant la tige des ressorts non-désirés par exemple (5) ou (8) et (9) dans les trous (6) ou (10 et 11) ou situés sur au moins un des deux panneaux, annulant ainsi l'action de ces ressorts par exemple quand le panneau superieur (2) du siège est repliée; l'utilisateur peut ainsi choisir le degré de flexibilité du panneau supérieur lorsque celui-ci est replié sur le panneau inférieur(3) du siège, et aussi choisir le (ou les) ressort(s) adapté(s) (12) à son poids; il peut donc faire varier la résistance du panneau superieur de façon à s'asseoir en douceur et à bénéficier d'un soutien lorsq'il veut se relever.
  2. Un siège à ressorts selon la revendication 1 caracterisé par des ressorts de torsion situés sur l'axe (4) de la charnière qui sert aussi de barre de torsion (4).
  3. Un siège à ressorts selon la revendication 1 caraterisé par les ressorts de torsion situés sur une barre de torsion (15) distincte de la charnière du siège (4).
  4. Un siège à ressorts selon la revendications 1 caracterisé par son panneau supérieur (2) qui s'ouvre vers l'extérieur donnant au siège l'aspect d'un livre ouvert et relachant la pression exercée sur les ressorts (8),(9) et (12) de façon à permettre un libre déplacement des ressorts sur leur axe.
  5. Un siège à ressorts selon la revendication 1 caracterisé par une partie d'une ou des panneaux (2) et (3) et/ou sur laquelle les resorts de torsion reposent directement ou indirectement pouvant être déplacée de manière à ne pas faire pression sur les ressorts non-désirés et ainsi permettre la variation de la flexibilité de la charnière.
  6. Un siège à ressorts selon les revendication 1, 2 et 3 caracterisé par un (ou des) ressort(s) de torsion(5) fixé(s) à une barre de torsion(4) coulissante qui permet au(x) ressort(s) d'être déplacés latéralement dans la position choisie.
  7. Un siège à ressorts selon les revendication 1 et 8 caracterisé par un (ou des) ressort(s) (5) pouvant être déplacés latéralement sur une barre de torsion(4) pour être placés soit dans une position dans dans laquelle ils sont en contact direct ou indirect avec les panneaux (2) et (3), soit dans une position neutre, à l'intérieur d'une cavité (6) située sur ou dans le(s) panneau(x) (2) ou (3).
  8. Un siège à ressorts selon les revendication 1 et 2 caracterisé par des ressorts (5) (8), (9) et (12) qui coulissent le long d'une barre de torsion fixe.
  9. Un siège à ressorts selon les revendications 1 et 20 caracterisé par au moins un trou (cavité) (6) (FIG 2) sur au moins le panneau inférieur du siège (3), et dans lequel le ressort s'enfonce qui devient inéfficace lorsque l'on rabat le panneau supérieur(2); tous les ressorts ainsi positionnés deviennent inéfficaces et si tous les ressorts sont placés dans les trous, le panneau supérieur pourra être replié sans aucune résistance, facilitant ainsi le transport du siège.
  10. Un siège à ressorts selon la revendication 1 caracterisé par un positionnement des tiges(12) des ressorts de torsion sur une surface rigide des deux panneaux(2) et(3) faisant fonctionner les ressorts et laissant à l'utilisateur le choix du degré de flexibilité adapté à son poids qui est nécessaire afin de replier le siège.
  11. Un siège à ressorts selon les revendications 1 et 3 caracterisé par une barre de torsion (15) sur laquelle sont enroules les ressorts de torsion (5) par example pouvant être t'eloigner de la charnier, mettant les ressorts hors de portée du panneau supérieur (2) lorsque l'on entame le repli du siège; en outre, des trous (17) situés au moins dans le panneau inférieur et dans lesquels les tiges des ressorts (5) on-désirés viennet se glisser, les rendant ainsi inéfficaces.
  12. Un siège à ressorts selon la revendication 1 caracterisé par au moins deux ressorts (8) fixés l'un a l'autre de facon à pouvoir déplacer plusieurs ressorts simultanément.
  13. Un siège à ressorts selon la revendication 1 caracterisé par des fentes (14) dans lesquelles les tiges des ressorts (12) sont calées pour éviter tout glissement lorsque le panneau superieur (2) est rabattue sur le panneau infèrieur (3)
  14. Un siège à ressorts selon les revendications 1 et 9 caracterisé par un capuchon (7) situé sur la partie externe de/des panneau/x au dessus ou sous de chaque trou (6) de façon à éviter toute perforation des tissus du siège.
  15. Un siège à ressorts selon la revendication 1 caracterisé par une cale (18) coulissante sur laquelle le ressort (5) repose, pouvant être déplace sur un axe à vis (19) de façon à faire varier le degré de résistance de ce ressort qui repose directement ou indirectement sur l'autre panneau du siège.
  16. Un siège à ressorts selon la revendication 1 caracterisé par une poignée de transport (FIG 1)
  17. Un siège à ressorts selon la revendication 1 caracterisé par une charnière (5) située en retrait par l'intersection des deux panneaux (3)(FIG7)
  18. Un siège à ressorts selon la revendication 1 caracterisé par les ressorts (8)(9) et (12) situés sur la barre de torsion dans une position transversale.
  19. Un siège à ressorts selon la revendication 1 caracterisé par des blocs (20) situés sur la face interne au moins d'un panneau, et sur lequels les tiges des ressorts (5) choisis reposent pour appliquer la résistance souhaitée lors du repli du siège.
  20. Un siège à ressorts selon les revendications 1 et 19 caracterisé par des espaces (22) entre les blocs (20) permettant d'abaisser les ressorts non-désirés par utilisateur et de les rendre innéfficaces; chaque ressort à son propre espace, donc,le siège peut être replié sans qu'aucun d'eux n'oppose de résistance; les blocs sont fixes ou coulissant sur au moins un des deux panneaux.
  21. Un siège à ressorts selon la revendication 1 caracterisé par deux panneaux dans lesquels une ouverture à été creusée, le panneau supérieur (2) servant de lunette de toilettes; le siège est fixé aux toilettes par le panneau inférieur (3) et les ressorts y reposent au moins indirectement, l'autre extrémité des ressorts reposent sur la panneau supérieur et la charnière (4) sera placée en avant des toilettes (23)
  22. Un siège à ressorts selon la revendication 1 caracterisé par deux panneaux (2) et (3) rigides articulés par une charnière qui les relie directement ou indirectement l'un à l'autre.
  23. Un siège à ressorts selon les revendications 1 et 22 caracterisé par son panneau inférieur (3) qui est biseauté (25) de façon a pouvoir être glissé entre le dossier et l'assise d'un fauteuil (24)
  24. Un siège à ressorts selon les revendications 1 et 22 caracterisé par son panneau inférieur (3) qui possède des tiges extensibles ou une tige extensible (26) sur le/les côté/s de façon a pouvoir coincer le siège à ressorts entre les accoudoirs/ l'accoudoire(24) d'un fauteuil.
  25. Un siège à ressorts selon la revendication 1 caractérisé par la possibilité qu'l a d'être construit directement dans un fauteuil standard.
EP94917070A 1994-05-24 1994-05-24 Assise elevatrice pour siege de toilettes Expired - Lifetime EP0804134B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1994/001134 WO1995031953A1 (fr) 1992-10-15 1994-05-24 Assise elevatrice pour siege de toilettes

Publications (2)

Publication Number Publication Date
EP0804134A1 EP0804134A1 (fr) 1997-11-05
EP0804134B1 true EP0804134B1 (fr) 2001-02-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94917070A Expired - Lifetime EP0804134B1 (fr) 1994-05-24 1994-05-24 Assise elevatrice pour siege de toilettes

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EP (1) EP0804134B1 (fr)
DE (1) DE69426784D1 (fr)

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Publication number Publication date
DE69426784D1 (de) 2001-04-05
EP0804134A1 (fr) 1997-11-05

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