EP0804134B1 - Hebevorrichtung für sitze, unter anderem toilettensitze - Google Patents

Hebevorrichtung für sitze, unter anderem toilettensitze 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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Expired - Lifetime
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EP94917070A
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English (en)
French (fr)
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EP0804134A1 (de
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John Bernard Paxon
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Individual
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Priority claimed from PCT/GB1994/001134 external-priority patent/WO1995031953A1/en
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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. Ein aufstehender sitz für einen sitzplatz mit toilette und press kombination:-
    (a) mindestens eine Kräftige wiederstandsfähige feder (12) auf einer starken wiederstands stange (4) jeder fuss der feder ist bestätigt mit mindestens direcktem kentakt mit der inneren oberfläche des aufstehendem sitz, wie oberfläche und boden (3) sind drehbahr, abhänig, zusammen.
    (b) und die möglichkeit zur übertragung jeder ausgewählter nummer der federn umwirksam herausnenehmendem druck von dem federfuss und dann auf der stelle am fuss jeder feder (5) oder (8) + (9) mühelos in eine der anderen nummern der öffnungen (6) oder (10) + (11) zusammen an mindestens einer section, solche position/en holten die obere section (2) bestätigt die position der federn und so bestimmen den messen leichtigkeit der oberen section welche ist tiefer zur Bodensection (3) und er möglichen den Benutzer zu wählen welche der Ferder/n zu wünchen (12) zum abgelen der oberen section ist Kräftig genug um ihn langsam runter zu bringen in eine sitzende position und ihn wieder zur stehenden position bringen.
  2. Ein aufstehende zitz als anspruch 1 ist kennbar an der wiederstands fähigen feder, sichtbar an dem scharnierstift (4) dus wivkt als eine starke stange.(4).
  3. Ein aufstehender sitz als anspruch 1 ist erkennbar sichtlich an der wiederstands feder(5) wie gesehen an der starken stange (15) gesondert von der scharnier (4)
  4. Ein aufstehender sitz als anspruch 1 ist er jennbar an der oberen section (2) ist nach aussen geöffnet wie der figur am boden (3) eines offenes Buches um den druck der füsse zu mindern von den federn (8) (9) und (12) um raum zu machen für wenigstens einer feder in ihrer position.
  5. Ein aufstehender sitz als anspruch 1 ist er känntlih an der be weglichen section (nicht gezeigt) (2) und/oder (3) an welche die feder/n ist mindestens millelbar (indireckt) und lehnen weg vom boden der feder/n welche nicht in operation um mit leichtigkeit zu bestimmen wie die obere section auf die untere section gebracht werden kann.
  6. Ein aufstehender sitz als anspruch 1, 2 und 3 ist erkanntlich an der wiederstands feder (5) befestigt zur eine starken stange (4) be weglich über dem aufstehendem sitz trägt die feder zur richtigen position.
  7. Ein aufstehender sitz/stuhl als anspruch 1 und 8 ist erkennbar bei der beweglichen feder/n (5) an der kräftigen stange (4) um einen der füsse über die position der lucke (6) oder wenigstens mittlebar (indireckley) auf der harten fläche in section (2) oder (3)
  8. Ein aufstehender sitz als anspruch 1 und 2 ist erkennbar bei den federn (5)(8) und (9) und (12)welche beweglich an der kräfligen stange ist.
  9. Ein aufstehender sitz als anspruch 1 und 20 ist erkennbahr dargestellt bei mindestens einer lücke (6) (FIG 2) an mindestens der boden section (3) in welche lücke/n die feder/n beweglich an der oberen section kommt runder, so alle feder/n in ihrer position sind unbetätig das erlault die obere section (2) runter zubringen zur boden section frei vom druck der oberen section der feder/n wobei neutralesirung der kräfttigkeit der positierten feder/n leichter trägt am aufstehendem sitz.
  10. Ein aufstehender sitz als anspruch 1 ist erkennbahr bei der position der feder füsse (12) an der harten innerenseite oben und unten in section (2) und (3) um zu bestimmen die leichtig keit der oberen section zur unteren section um das notwendige gewicht des Benützers gegen die obere section und untere kräftige feder zu niedrigen.
  11. Ein aufstehender sitz als anspruch 1 und 3 ist erkennbahr bei der beweglichen kräftigen stange (15) an weder mindestens eine feder (5) lage weg ist,bei der kannte in section (3) am boden, und nicht im bereich der oberen section ist (2) dabei versuchen das keine kraft erfolgt von den federn zwischen des langsamen niederung der oberen section nieder zum boden section in löchern, (17) und mindestens der boden section durch welche löcher die füsse der feder/n (5) reiehen und unbetätig werden.
  12. Ein aufstehender sitz als anspruch 1 ist erkennbahr bei nicht weniger denn zwei federn (8) zusammen gesetzt, als gruppe die federn sind-be weglich mit mehr denn eine feder in einer funktion.
  13. Ein aufstehender sitz als anspruch 1 ist erkennbahr bei rillen (14) in welche jeder federnfuss (12) sitzt umein ver schieben zu ursacher wie in der obersten section (2) und genierdrigt zum boden section. (3)
  14. Ein aufstehender sitz als anspruche 1 und 9 ist erkennbahr mit einer kapsul (7) über der lücke (6) in welcjes der federfuss sich bewegt (5) die kapsul verhindern den federfuss durchzudringen zur füllung des steigendem sitz.
  15. Ein aufstehender sitz als anspruch 1 ist erkennbahr mit einen keil (18) wo die feder aufruht (5) der keil ist verstellbar gegen über oder weg von der feder in beziehung zur rolle mit einer verstellung schraube (19) die wobie zu nehmend oder abnehmend die kraft der feder auf dem anderen ende ist mittlebar (indirekt) auf der harten fläche gegen - über.
  16. Ein aufstehender sitz als anspruch 1 ist erkennbahr an einem träger (FIG 1)
  17. Ein austehender sitz als anspruch in 1 ist erkennbahr der scharnier ist weg von derkannte am boden. (3) (FIG 7).
  18. Ein austehender sitz als anspruch in 1 ist erkennbahr bei federn (8) (9) und (12) sie sind horizontally dargestellt an der stange.
  19. Ein austehender sitz als anspruch in 1 ist erkennbahr bei klotzen (20) innen im zitzdeckel, elie klotzen wählen die federfüsse (5) in derlage, wenn kraft ist gebraucht in der oberen section.(2)
  20. Ein austehender sitz als anspruch in 1 und 19 ist erkennbahr bei Lücken (22) zwischen den klotzen (20) in welches ein fuss jeder feder fällt jede gebrauchte feder benützen die falle frei ohne kraft, wie der oberen section (2) ist erniedrigt wobei die funktion stops, klotzen sind auf der section oder ist gleiten an einer section.
  21. Ein austehender sitz als anspruch in 1 ist erkennbahr bei seiner ausgehöhlten section im oberen teil des sitzes (2) für eine toilette, der hergestellte sitz ist am boden befästigt(3) an einem ende der stragen-feder/n und ist mindestens mittlebahr auf der oberen section hanglich (4) auf die untere section (3) an der kante toilette. (23)
  22. Ein austehender sitz als anspruch in 1 ist erkennbahr bei der der obersten section (3) und unteren section (3) hergestellt mit zwei harten brettern und in der mitte zusammen hängen.
  23. Ein austehender sitz als anspruch in 1 und 22 ist erkennbahr an der boden section (3) mit zwei keilen (25) unter der seite/ rücken des sitzes. (24)
  24. Ein austehender sitz als anspruch in 1 und 22 ist erkennbahr bei einer ver längeren boden section (26) zur inncren seite des gesichtes auf dem arm eines gröfseren stuhls (sitz) (24)
  25. Ein aufstender sitz als anspruch in 1 ist erkennbahr und ist so eingebaut dafsehr in jede normale/standard sitzung passt.
EP94917070A 1994-05-24 1994-05-24 Hebevorrichtung für sitze, unter anderem toilettensitze Expired - Lifetime EP0804134B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1994/001134 WO1995031953A1 (en) 1992-10-15 1994-05-24 Rising seat for seating including toilets

Publications (2)

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

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94917070A Expired - Lifetime EP0804134B1 (de) 1994-05-24 1994-05-24 Hebevorrichtung für sitze, unter anderem toilettensitze

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EP (1) EP0804134B1 (de)
DE (1) DE69426784D1 (de)

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DE69426784D1 (de) 2001-04-05
EP0804134A1 (de) 1997-11-05

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