EP0619994A1 - Plaque tournante faisant fonction de siège pour invalides - Google Patents

Plaque tournante faisant fonction de siège pour invalides Download PDF

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Publication number
EP0619994A1
EP0619994A1 EP93104199A EP93104199A EP0619994A1 EP 0619994 A1 EP0619994 A1 EP 0619994A1 EP 93104199 A EP93104199 A EP 93104199A EP 93104199 A EP93104199 A EP 93104199A EP 0619994 A1 EP0619994 A1 EP 0619994A1
Authority
EP
European Patent Office
Prior art keywords
cover plate
retaining ring
outer edge
edge
turntable according
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.)
Granted
Application number
EP93104199A
Other languages
German (de)
English (en)
Other versions
EP0619994B1 (fr
Inventor
Klaus Janisch
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.)
Schmidt and Lenhardt GmbH and Co OHG
Original Assignee
Schmidt and Lenhardt GmbH and Co OHG
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 to DE59300599T priority Critical patent/DE59300599D1/de
Priority to DK93104199.0T priority patent/DK0619994T3/da
Priority to ES93104199T priority patent/ES2076804T3/es
Priority to EP93104199A priority patent/EP0619994B1/fr
Priority to AT93104199T priority patent/ATE127678T1/de
Application filed by Schmidt and Lenhardt GmbH and Co OHG filed Critical Schmidt and Lenhardt GmbH and Co OHG
Priority to US08/205,943 priority patent/US5441329A/en
Priority to CA002119042A priority patent/CA2119042A1/fr
Priority to JP6071635A priority patent/JP2537138B2/ja
Publication of EP0619994A1 publication Critical patent/EP0619994A1/fr
Application granted granted Critical
Publication of EP0619994B1 publication Critical patent/EP0619994B1/fr
Priority to GR950402911T priority patent/GR3017808T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1073—Parts, details or accessories
    • A61G7/1076—Means for rotating around a vertical axis
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/18—Chairs or stools with rotatable seat
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/34—Specific positions of the patient sitting

Definitions

  • the invention relates to a turntable as a seat for the disabled, with a base plate, a cover plate rotatably mounted thereon, a cushion mat arranged centrally on this and a circularly contoured retaining ring which overlaps this on its peripheral edge and is detachably fastened to the cover plate and also the outer edge of the Cover plate overlaps.
  • the retaining ring here consists of a number of circumferentially lined up individual ring segments which have bottom-side locking pins which are detachably locked in corresponding holes in the rotatable cover plate. Thanks to this segmental construction of the retaining ring, production is inexpensive. Although the retaining ring could also be produced in one piece, there are then fitting problems because the cover plate must be made of a different plastic material than the retaining ring due to the required sliding properties and due to the different coefficients of thermal expansion, there would be fitting errors with regard to the exact latching of the retaining ring of the cover plate. A one-piece retaining ring would be preferable to simplify assembly and disassembly for cleaning.
  • the object of the invention is to improve the turntable of the above type in such a way that any fit problems between the retaining ring and the cover plate can be avoided and the handling during assembly and disassembly of the retaining ring is simplified without negatively influencing the holding effect of the cushion mat on the cover plate.
  • the outer edge of the cover plate has a regular polygonal contour with a plurality of equally long, at least approximately rectilinear edge parts, that the retaining ring is formed in one piece and has an axially sectioned, elastically deformable outer edge , which engages under the cover plate at least at the transitions between each two of its adjacent edge parts and rests against these transitions on the outer edge of the cover plate.
  • the retaining ring requires only very little elastic deformability, because when the retaining ring is assembled, the outer ring is pressed over a few corners of the polygonal outer edge of the cover plate, the retaining ring being able to deform like a tendon in the neighboring areas of these polygonal corners , which results in a local increase in diameter of the retaining ring in the region of one or more adjacent corners of the cover plate.
  • the corners between two at least approximately straight Edge parts of the cover plate are preferably rounded.
  • the new turntable is further characterized in that the outer edge of the retaining ring rests on a plurality of spaced apart areas on the cover plate and a gap is formed between each of such contact areas between the retaining ring and cover plate.
  • the width of this gap changes continuously in the circumferential direction. It is zero in the area of the polygon corners, then rises steadily to the middle of the straight edge parts of the cover plate and then gradually decreases again in the circumferential direction to the value of zero in the area of the next polygon corner.
  • a further embodiment of the invention can be seen in the fact that the axial section contour of the outer edge of the cover plate is at least approximately semicircular.
  • the outer edge of the retaining ring is preferably formed with a clamping surface which tapers conically towards the bottom plane of the retaining ring. This clamping surface bears against the rounded polygon corner regions in the lower half of the outer edge of the cover plate, the retaining ring being supported directly on the top surface of the cover plate. Between this support surface of the retaining ring and its clamping surface there is a slight undersize in comparison to the corresponding contact surfaces of the Cover plate, so that a certain deformation of the outer edge of the retaining ring occurs when it is mounted on the cover plate.
  • the retaining ring is clamped both radially and axially on the cover plate, with the result that the cushion mat is held securely against sliding on the cover plate. Nevertheless, disassembly of the turntable for cleaning purposes is very easy to carry out, since only a lifting axial force has to be exerted on the outer edge of the retaining ring, which can be done for example by means of two fingers. Due to this axial force and the free spaces formed between the polygon corners between the retaining ring and the cover plate, the retaining ring can stretch like a chord between two polygon corners, which results in an increase in the diameter of the retaining ring in the area of the polygon corner, which allows the retaining ring to be easily lifted off the cover plate.
  • the outer edge of the retaining ring which is hook-shaped in axial section, has a circumferential lip which engages under the outer edge of the cover plate, which is convexly rounded in cross section, and at least approximately linearly rests against it under prestress.
  • This clamping line contact between the peripheral lip of the retaining ring and the cover plate is advantageous both for the clamping effect and for the easy assembly and disassembly of the retaining ring.
  • the inner edge of the retaining ring preferably tapers radially inward in cross section. The inner end of this inner edge is then still below the surface of the cushion mat in its uncompressed area.
  • a circumferential rib penetrating into the cushion mat is provided on the inside, which improves the hold of the cushion mat on the cover plate. This circumferential rib can be interrupted at circumferential intervals.
  • the turntable 10 has a base plate 12, a cover plate 14, a soft compressible support mat 16 and a retaining ring 18.
  • the base plate 12 and the cover plate 14 each have a central bore, that of the base plate being stepped. Both plates 12, 14 are connected to one another by means of a central clip 20 which has spring tongues on the bottom which engage under an annular shoulder in the stepped bore of the base plate 12.
  • the cover plate can be lifted off the base plate by radial inward movement of the spring tongues of the central clip 20.
  • the subsequent reassembly only requires the alignment of the two holes in the base plate and cover plate, after which the central clip 20 is inserted axially. His spring tongues automatically move inwards and then automatically snap into the ring shoulder of the base plate 12. Assembly and disassembly are possible in the shortest possible time without tools.
  • the cover plate 14 has a new type of outer contour, because it has rounded corners 22 at equal angular intervals 18, between which straight edge parts 24 each extend.
  • the cover plate 14 is thus formed polygon-like on its outer circumference.
  • the retaining ring 18 is rotationally symmetrical, that is to say it has a circular contour. Its inner surface lies only in the transitions 22 between two rectilinear edge parts 24 of the cover plate 14, and between each of these transitions 22, which are formed by the rounded polygon corners, there remains a circular segment-shaped gap 26, the gap width of which is in the middle of the straight line Edge parts 24 is largest and then steadily decreases on both sides down to the value zero in the area of the transitions 22.
  • a circularly contoured outer edge of the retaining ring 18 and a polygon-like contoured outer edge of the cover plate 14 allows the holder ring 18 to be designed with only a slight elastic deformability and nevertheless can be easily clamped onto the cover plate 14 and detached from it.
  • an axial lifting force on the outer edge of the retaining ring in any circumferential area is sufficient. The retaining ring 18 then deforms from the in FIG.
  • the cover plate 14 has a convexly rounded contour in axial section, which here is semicircular.
  • the diameter of the cover plate 14 in the middle height range is therefore the largest and decreases upwards and downwards.
  • the reduction in diameter in the lower half of the cover plate 14 is important so that the retaining ring 18 can reach under the cover plate.
  • the retaining ring 18 has a hook-shaped outer edge 28 and an inner edge 30 which overlaps the support mat 16 and which has a conically upwardly facing inner surface 32 on which a peripheral rib 34 is formed which penetrates into the support mat 16 in a form-fitting manner.
  • the thickness of the inner edge 30 decreases continuously radially inwards.
  • the cross section of the inner edge 30 is essentially triangular.
  • the outer edge 28 of the retaining ring 18 has, in axial section, an inner surface 36 rounded in the upper region, which delimits a crescent-shaped cavity 40 with the convex outer surface 38 of the cover plate 14.
  • the inner surface 36, rounded in axial section, of the outer edge 28 of the retaining ring 18 merges into a conical clamping surface 42, which ends at the lower end of the retaining ring outer edge 28. With the bottom surface of the outer edge, this clamping surface 42 forms a circumferential lip 44 which engages under the outer edge 46 of the cover plate 14.
  • the retaining ring 16 does not lie along the entire circumference on the outer edge 46 of the cover plate 14, which is in contact rather, only in the area of the transitions 22 between two rectilinear edge parts 24 of the cover plate 14. Between the inner edge 30 and the outer edge 28 of the retaining ring 18, the latter has an inside support surface 48 which lies all around on a complementary flat annular surface of the cover plate 14.
  • the distance between this support surface 48 and the conical clamping surface 42 on the lower lip 44 of the retaining ring 18 is dimensioned somewhat smaller than the corresponding distance of the counter surfaces on the cover plate 14, so that in the assembled state there is a slight deformation of the lip 44 of the retaining ring 18, as a result of which Retaining ring 18 is clamped to the cover plate 14 both in the radial direction and in the axial direction.
  • the peripheral lip 44 ensures that the support surface 48 of the retaining ring is pulled axially against the annular surface of the cover plate 14.
  • the contour of the outer edge 46 is shown in dashed lines in the middle of the straight edge part 24 of the cover plate 14. In this area, the outer edge 28 of the retaining ring 18 does not engage under the cover plate 14.
  • the retaining ring 18 can be detached from the cover plate 14 with a slight finger pressure. You run your finger between them Retaining ring 18 and base plate 12 and presses the retaining ring 18 away from the base plate 12 in any circumferential area. Since the clamping contact between the holding ring 18 and the cover plate 14 is only present within a small circumferential area within the transitions 22, the outer edge 28 of the holding ring 18 deforms on both sides adjacent to this clamping zone, namely the circularly contoured outer edge 28 is stretched like a chord (FIG. 4), whereby the gap 26 decreases in width. As a result, the diameter of the outer edge 28 increases in the area of the transitions 22 and the circumferential lip 44 is released from the outer edge 46 of the cover plate 14 in this area. The retaining ring 18 can then simply be pivoted upward away from the cover plate 14.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Chairs Characterized By Structure (AREA)
  • Seats For Vehicles (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Adornments (AREA)
  • Switches With Compound Operations (AREA)
  • Polarising Elements (AREA)
  • Mechanically-Actuated Valves (AREA)
EP93104199A 1993-03-16 1993-03-16 Plaque tournante faisant fonction de siège pour invalides Expired - Lifetime EP0619994B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK93104199.0T DK0619994T3 (da) 1993-03-16 1993-03-16 Drejebord til siddeflade for handicappede
ES93104199T ES2076804T3 (es) 1993-03-16 1993-03-16 Plato giratorio como superficie de asiento para personas impedidas.
EP93104199A EP0619994B1 (fr) 1993-03-16 1993-03-16 Plaque tournante faisant fonction de siège pour invalides
AT93104199T ATE127678T1 (de) 1993-03-16 1993-03-16 Drehteller als sitzfläche für behinderte.
DE59300599T DE59300599D1 (de) 1993-03-16 1993-03-16 Drehteller als Sitzfläche für Behinderte.
US08/205,943 US5441329A (en) 1993-03-16 1994-03-02 Rotatable seat
CA002119042A CA2119042A1 (fr) 1993-03-16 1994-03-15 Siege rotatif
JP6071635A JP2537138B2 (ja) 1993-03-16 1994-03-16 身体障害者用着座面としての回転円板装置
GR950402911T GR3017808T3 (en) 1993-03-16 1995-10-18 Turning plate as a seat for the disabled.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93104199A EP0619994B1 (fr) 1993-03-16 1993-03-16 Plaque tournante faisant fonction de siège pour invalides

Publications (2)

Publication Number Publication Date
EP0619994A1 true EP0619994A1 (fr) 1994-10-19
EP0619994B1 EP0619994B1 (fr) 1995-09-13

Family

ID=8212698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104199A Expired - Lifetime EP0619994B1 (fr) 1993-03-16 1993-03-16 Plaque tournante faisant fonction de siège pour invalides

Country Status (9)

Country Link
US (1) US5441329A (fr)
EP (1) EP0619994B1 (fr)
JP (1) JP2537138B2 (fr)
AT (1) ATE127678T1 (fr)
CA (1) CA2119042A1 (fr)
DE (1) DE59300599D1 (fr)
DK (1) DK0619994T3 (fr)
ES (1) ES2076804T3 (fr)
GR (1) GR3017808T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298845A (en) * 1995-03-16 1996-09-18 Phillip Walter Strong Rotary Transfer Aid

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE511162C2 (sv) * 1996-11-26 1999-08-16 Volvo Ab Anordning för frigörbar fasthållning av föremål vid en mobil enhet
US5904399A (en) * 1997-09-25 1999-05-18 Hanil Company Ltd. Rotary table of a seat for automobiles
US5984129A (en) * 1997-12-29 1999-11-16 Pasinski; Tom Movable paint tray assembly for applying a liquid to a roller
US6053572A (en) * 1999-03-08 2000-04-25 Doran; Michele R. Device for facilitating access to sitting position on car seat
EP1403131A3 (fr) * 2002-09-27 2005-06-15 Combi Corporation Siège enfant pour véhicule automobile
US20040226954A1 (en) * 2003-02-24 2004-11-18 Tom Pasinski Assembly for the movement of a paint tray
DE20318391U1 (de) * 2003-11-28 2005-04-14 Lear Corporation, Southfield Drehsitz
US7159940B1 (en) 2005-07-25 2007-01-09 Jerry Mac Atkins Eccentrically rotatable swivel seat device
KR101033787B1 (ko) * 2007-12-18 2011-05-13 현대자동차주식회사 운전석과 조수석의 위치 변경장치
US8302221B1 (en) 2009-03-03 2012-11-06 Pivot Assist, Llc Medical assist device with lift seat
US10857907B2 (en) 2018-04-05 2020-12-08 Sears Manufacturing Co. In-cushion seat swivel
US11389001B1 (en) * 2021-03-05 2022-07-19 Michael David Daily Back saver

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713619A (en) * 1970-10-28 1973-01-30 F Marty Revolvable device for aiding the movement of a partially disabled person
US4561695A (en) * 1984-02-23 1985-12-31 Michigan Seat Company Seat with foam snap-on cover
DE9113964U1 (fr) * 1991-11-09 1992-01-02 Schwarz, Roland, 8970 Immenstadt, De
EP0364746B1 (fr) * 1988-10-19 1992-04-29 Schmidt & Lenhardt GmbH & Co. oHG Plaque tournante comme siège pour invalides

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232662A (en) * 1965-03-25 1966-02-01 Harold C Graves Combination tray and seat apparatus
US4034947A (en) * 1975-07-24 1977-07-12 Anthony Geisel Rotating seat device
US4969290A (en) * 1989-05-09 1990-11-13 Rudolph Skoretz Apparatus for even exposure of plants to sunlight
DE9006002U1 (fr) * 1990-05-26 1990-08-02 Grundmann, Ernst H., 4005 Meerbusch, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713619A (en) * 1970-10-28 1973-01-30 F Marty Revolvable device for aiding the movement of a partially disabled person
US4561695A (en) * 1984-02-23 1985-12-31 Michigan Seat Company Seat with foam snap-on cover
EP0364746B1 (fr) * 1988-10-19 1992-04-29 Schmidt & Lenhardt GmbH & Co. oHG Plaque tournante comme siège pour invalides
DE9113964U1 (fr) * 1991-11-09 1992-01-02 Schwarz, Roland, 8970 Immenstadt, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298845A (en) * 1995-03-16 1996-09-18 Phillip Walter Strong Rotary Transfer Aid
GB2298845B (en) * 1995-03-16 1998-08-26 Phillip Walter Strong Rotary Transfer Aid

Also Published As

Publication number Publication date
ATE127678T1 (de) 1995-09-15
CA2119042A1 (fr) 1994-09-17
DE59300599D1 (de) 1995-10-19
JP2537138B2 (ja) 1996-09-25
ES2076804T3 (es) 1995-11-01
DK0619994T3 (da) 1996-01-29
JPH06296650A (ja) 1994-10-25
EP0619994B1 (fr) 1995-09-13
US5441329A (en) 1995-08-15
GR3017808T3 (en) 1996-01-31

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