WO1994016600A1 - Siege reglable - Google Patents

Siege reglable Download PDF

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Publication number
WO1994016600A1
WO1994016600A1 PCT/DE1994/000064 DE9400064W WO9416600A1 WO 1994016600 A1 WO1994016600 A1 WO 1994016600A1 DE 9400064 W DE9400064 W DE 9400064W WO 9416600 A1 WO9416600 A1 WO 9416600A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
joint
back part
lever
support element
Prior art date
Application number
PCT/DE1994/000064
Other languages
German (de)
English (en)
Inventor
Horst Sondergeld
Original Assignee
Horst Sondergeld
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 Horst Sondergeld filed Critical Horst Sondergeld
Priority to JP6516563A priority Critical patent/JPH07506515A/ja
Publication of WO1994016600A1 publication Critical patent/WO1994016600A1/fr

Links

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
    • A47C1/03294—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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs

Definitions

  • the invention relates to a seat of the type specified in the preamble of claim 1.
  • a known seat of this type (DE 38 00 754 AI)
  • the seat and the back part simultaneously form the support for a seat and back cushion.
  • a seat can be used to set numerous angles between the seat and back sections between an extreme sitting and lying position, the sitting or lying comfort is not yet optimal.
  • seats have become known (DE 38 44 102 AI), in which only the back part is in one part, the seat part, on the other hand, is in two parts and is provided with a front and rear seat part section.
  • the rear seat section has the shape of a pelvic seat shell and is pivotally connected to both the front seat section and the back section about freely suspended axes. All three parts of the seat are otherwise provided with the usual upholstery. This makes it possible not only to freely adjust the angles between the thighs and the pelvis of the user and / or the horizontal, but also the angles of the thighs / pelvis and pelvis / spine, which are important for the human body, and thus also the degree of curvature of the spine . In addition, ergonomically favorable conditions can be created in all desired seating positions.
  • the seat in contrast to the first two seats, is not well balanced in all applications due to the use of the pelvic seat shell and is not suitable for all sizes and weights of the users equally well suited.
  • the seat is e.g. used as a motor vehicle seat, there is a risk, in particular in the case of abrupt changes in speed, such as, in particular, when accelerating or braking a motor vehicle, that the back part pivots automatically about the axis of rotation of the joint by means of which it is fastened to the rear part of the seat part, which affects driving safety. It would therefore either be necessary to fix the back part by means of a locking device, which is undesirable because the back part can then no longer be adjusted by simply shifting body weight while driving.
  • a force in particular spring force, would have to be provided which is greater than the centrifugal forces which occur and which tries to pivot the back part in a direction dependent on the direction of force.
  • springs are undesirable, however, because they have to be overcome by the body forces during the adjustment of the seat and the spring force has to be constantly balanced by the body force in a multitude of sitting positions. Apart from this, spring forces cannot normally be optimally adapted to all occurring sizes or weights of the users of the seat.
  • the invention is therefore based on the object of designing the seat of the type described at the outset in such a way that it combines the advantages of the known seats mentioned and also when a three-part cushion cover is used in all seat and reclining positions and even when centrifugal forces occur assumes a largely stable, neutral equilibrium position from which it can be moved to another sitting or lying position, particularly by shifting body weight.
  • FIG. 1 shows a roughly simplified, schematic side view of a known seat construction which can be used as a substructure for the seat according to the invention
  • FIG. 2 shows a schematic side view of a seat according to the invention with a substructure constructed analogously to FIG. 1;
  • Fig. 3 is an isometric view of the seat of Fig. 2;
  • FIG. 4 shows a seat according to FIG. 2 with additional braking devices
  • FIGS. 5 and 6 are schematic side views of two further embodiments of the seat according to the invention.
  • a known seat for example suitable for an office chair (DE 38 00 754 AI, FIG. 6), contains a frame 1 with, for example, five as a supporting element arms arranged in a star shape, ' at the ends of which wheels or rollers 2 are rotatably attached.
  • a tube 3 protrudes vertically upward from the center of the frame 1, in which an axis 4 of a U-shaped support 5 is rotatably mounted and, if necessary, adjustable in height.
  • the carrier 5 has a crosspiece 6 which is preferably arranged perpendicular to the axis 4 and two legs which are fastened at the ends and preferably arranged parallel to the axis 4 and which form support arms which preferably consist of frame-shaped side parts 7 arranged in parallel.
  • the cross piece 6 and the side parts 7 are preferably rigidly connected to one another in part or made from one piece.
  • Each side part 7 is designed like a half ring and has a lower, circular arc-shaped frame part 8, which extends, for example, about a third of a circle.
  • One end of the frame part 8 is connected to the one end of a web 9, which runs essentially perpendicular to the axis 4 and at the same time can be designed as an armrest, while the other end of the frame part 8 via a web 10 to the other end of the Web 9 is connected.
  • the other side part 7 is designed accordingly.
  • the upper region of the side parts 7 formed from the webs 9, 10 can alternatively be designed freely or can also be omitted.
  • the actual seat is suspended on the carrier 5. It consists of a seat part 14 and a back part 15, which at their rear or lower ends and preferably on both sides are rotatably or pivotally connected to one another by at least one first, freely suspended joint 16, which e.g. has an axis extending through both parts.
  • the seat each has supporting elements which consist, for example, of pins 17 provided on both sides of the seat part 14 and pins 18 attached to both sides of the back part 15, which are arranged parallel to the axis of rotation of the joint 16.
  • the pins 17 each protrude into slot guides 19 which run in the form of an arc of a circle and are formed in front sections of the arcuate frame parts 8, while the pins 18 each protrude into slot guides 20 which run in the form of an arc of a circle and are formed in rear sections of the frame parts 8.
  • the lower limits of the slot guides 19, 20 act as control curves for the pins 17 and 18 resting on them and guided by them.
  • the joint 16 is free arranged so that the pins 17 of the seat part 14 can be moved back and forth as desired in the slot guides 19 when the back part 15 is held or the pins 18 of the back part 15 can be moved back and forth in the slot guides 20 with the seat part 14 held in place.
  • Combined movements of both the seat and the back part 14 or 15 or movements of the entire seat at a constant angle between the seat and back part 14, 15 are also possible, in particular if the slot guides 19, 20 are arranged on the same circular arc.
  • the frame part 8 with its slot guides 19 and 20 thus constitutes a forced guide for the support elements of the seat or back part designed as pins 17 and 18.
  • the pins 17, 18 are also expediently cylindrical and rotatable in the slot guides 19 and 20 stored so that they can turn when adjusting the seat or back section.
  • Fig. 1 also shows three different positions that the seat or back part 14 and 15 can take, with solid, dotted or dashed lines. The length of the adjustment path is given by the length of the slots 19, 20. With locking devices, not shown separately, it is also possible to rigidly fix the seat to the carrier 5 in any desired position.
  • the movement of the pins 17, 18 takes place expediently on cylindrical tracks around an imaginary axis 21, the slot guides 19, 20 being able to be replaced by articulated arms, one end of which is pivotably suspended with a joint having the axis 21 as the pivot axis, and the other ends of which are pivotally connected to the pins 17, 18 or the like.
  • FIG. 2 and 3 show a carrier 23, which is designed analogously to FIG. 1, but is mainly to be installed in a motor vehicle.
  • the carrier 23 in the usual manner in motor vehicles on rails 24 or the like instead of on rollers 2 and pushed back and forth.
  • the carrier 23 contains two side parts 25 arranged in parallel, in which slot guides 26 and 27 which preferably run in the form of a circular arc and which correspond to the slot guides 19 and 20 according to FIG. 1 are formed.
  • the bearing pins 28, 29 corresponding to the pins 19, 20 of FIG. 1 are displaceably and preferably rotatably mounted, which are pivotably mounted on central sections of a first and second support element 30 and 31.
  • the bearing journals 28, 29 consist e.g. from internally threaded bushings which are screwed onto threaded bolts located on the support elements 30, 31 in such a way that they can rotate freely on the latter in the areas predetermined by the slot guides 26, 27.
  • the support elements 30 and 31 are pivotally connected to one another at mutually facing ends by a first, freely floating joint 32 having a first axis of rotation.
  • the carrying elements 30, 31 can carry out the same movements as was explained with reference to FIG. 1 for the seat and back parts 14 and 15.
  • the slot guides 26, 27 could therefore also be replaced by articulated arms 33, 34 indicated by dashed lines, which are suspended at one end from a fixed articulation and are pivotally connected at their other ends to the support elements 30, 31.
  • the fixed joint is preferably arranged in the imaginary center of gravity 35 of the seat when used by a user.
  • the support elements 30, 31 do not form any direct supports for seat or back cushions, as is the case for the seat and back parts 14, 15 according to FIG. 1. Instead, the support elements 30, 31 consist only of flat levers, for example made of sheet metal, a pair of levers 30, 31 being arranged directly on each of the two side parts 25.
  • the actual seat is pivotally suspended on the support arms 30, 31. It consists of a front seat section 36 designed as a thigh seat shell, a rear seat section 37 designed as a pelvic seat shell and a back section 38 designed as a spinal seat section 38.
  • the rear seat section 37 is on both Ends articulated or pivotably connected by a freely floating joint 39 or 40 to an associated end of the back part 38 or the front seat section 36, the joints 39, 40 being able to consist, for example, of axes or shafts extending across the width of the seat that protrude through the respective parts or bearing bushes attached to them.
  • One joint 39 is arranged on one side and the other joint 40 on the other side of the first axis of rotation (joint 32) * .
  • the seat according to the invention is pivotally suspended from the supporting elements 30, 31 by means of additional compensating joints 41, 42.
  • the compensating joint 41 is e.g. from a short lever, one end of which is preferably pivotably mounted in a front region of the support element 30 and the other end preferably in a central section of the front seat section 36 by means of corresponding bearing pins 43 and 44, respectively.
  • the compensating joint 42 consists of a short lever, one end of which is preferably in a rear (upper) region of the support element 31 and the other end of which is preferably in a central section of the
  • Back part 38 is pivotally mounted by means of corresponding bearing pins 45 and 46, respectively.
  • the rear seat section 37 is also pivotably mounted by means of the first joint 32.
  • This contains e.g. a shaft or axis projecting through the seat section 37 and a bore of the support elements 30, 31 each.
  • the journals 44, 46 can also consist of parts 36 or 38 which project through shafts or axles which project with their ends into bores in the compensating joints or levers 41 or 42. Therefore, the actual seat, which contains the three parts 36, 37 and 38, is articulated on the support elements 30, 31, which in turn are guided in the side parts 25 in a pivotable and displaceable manner by means of positive guides, as in FIG. 1. Otherwise, the parts 36, 37 and 38 each extend over the entire width of the overall construction, which is determined by the spacing of the side parts 25, all three parts 36, 37 and 38 also serving as supports for a cushion 47, which in each can be designed appropriately.
  • the entire system based on the center of gravity 35, is located in almost all producible seating positions in one and only slightly by centrifugal forces in the direction of travel influenceable equilibrium, since forces acting in opposite directions essentially cancel each other out. It is therefore possible to leave the seat in an unlocked state even while driving, so that the user can change his seat position at any time by shifting his body weight, without having to laboriously search for locking devices and to actuate them and without fear must that the seat position once set changes unintentionally while driving.
  • the compensating joints 41 and 42 should lie outside an imaginary quadrilateral formed by the axes of rotation of the parts 28, 29, 32 and 35.
  • the journals 28, 29 should expediently each be arranged between the journals or pivot points 43, 32 and 45, 32, respectively.
  • At least one locking device to the seat, for example in the form of a hydraulic brake.
  • This is indicated in FIG. 4 by locking devices 48, 49 and 50, by means of which, for example, the movements of the bearing journals fen 43 and thus also the bearing pin 28 in the slot guides 26 or relative movements about the axis of rotation of the joint 39 can be made more difficult or prevented.
  • shock-like movements such as those that occur in accidents, can be avoided, in particular, while slow, slow, desired movements are possible.
  • FIGS. 2 and 3 it is possible to permanently rigidly connect the back part 38 to the rear seat part section 37, which is preferably designed as a pelvic shell, by using both e.g. to form a one-piece back part 51 (FIG. 5), which is made up of sections 51a, 51b.
  • the support elements 31 and the joints 42 can be omitted.
  • the back part 51 is itself guided in the slot guide 27 by means of a support element 52 and a bearing journal 53 or the like fastened thereon.
  • the coupling of the support elements 30 to the back part 51 nevertheless takes place analogously to FIGS. 2 and 3, preferably in a central region of the imaginary pelvic part 51a integrated into the back part 51. Otherwise, the same reference numerals as in FIGS. 2 and 3 are used for the same parts.
  • FIG. 6 differs from that according to FIG. 5 in that the front and rear seat part sections 36, 37 (FIGS. 2 and 3) are formed by a one-piece, but otherwise appropriately shaped seat part 54 are replaced, each having an imaginary front and rear seat portion 54a, 54b.
  • the support elements 30 and the joints 41 can be omitted.
  • the seat part 54 is itself guided in the slot guide 26 by means of a support element 55 and a bearing pin 56 or the like fastened thereon.
  • the coupling of the support elements 31 to the seat part 54 is nevertheless carried out analogously to FIGS. 2 and 3, preferably in a central region of the imaginary rear seat part section or pelvis part 54b integrated into the seat part 54.
  • the compensating joints 41, 42 serve the purpose of reducing the relative movements or longitudinal displacements that arise due to the use of the lever-like support elements 30, 31 between these and the associated seat and back parts 36, 37 and 38 to enable.
  • 5 and 6 show in particular, movements between the parts 36, 51 (FIG. 5) or 38, 54 (FIG. 6) impossible if the bearing pins 43 and 45 were used for the direct connection of the parts 30, 36 and the parts 31, 38 with the omission of the compensating joints 41, 42.
  • the distance between the bearing pins 43, 44 and 45, 46 is therefore dimensioned such that the seat part 36 (FIG. 5) or the back part 38 (FIG. 6) can follow any movements of the 5 support elements 30, 31 instead of them prevent.
  • FIGS. 2 and 3 The same applies to the exemplary embodiment according to FIGS. 2 and 3.
  • the support element 30 is directly connected to the front seat part section 36 by a joint 58 and the support element 31 is directly connected to the back part 38 by a joint 59.
  • the compensation is provided at another location, in that the joint 32 as a compensating
  • the joint 32 is articulated with two short levers 60 and 61, which articulate the joint 32, which is only coupled to the rear seat section 37 here, with trunnions 62, 63, which are attached to the free ends of the support elements 30 and 31, respectively.
  • trunnions 62, 63 which are attached to the free ends of the support elements 30 and 31, respectively.
  • Each compensating joint 63, 64 here contains a bearing pin 65 or 66, which is attached to one end of the support element 30, 31, and which fits into a correspondingly large, e.g. formed as .Longloch recess 67,68 of the front seat portion 36 and the back part 38 protrudes.
  • a bearing pin 65 or 66 which is attached to one end of the support element 30, 31, and which fits into a correspondingly large, e.g. formed as .Longloch recess 67,68 of the front seat portion 36 and the back part 38 protrudes.
  • the arrangement could also be such that the cutouts 67, 68 in one on the support element
  • the invention is not limited to the exemplary embodiments described, which relate to can be modified in many ways. This applies in particular to the positive guides formed from the slot guides 26, 27 and bearing journals 28, 29, which can also be designed in a different way and in particular as is explained in detail in the documents mentioned at the beginning of the prior art. Furthermore, other locking devices, not shown and which can be actuated, for example, in the manner of a central locking, can be assigned to the seat in order to lock the seat in a position which is once felt to be pleasant. Furthermore, it goes without saying that other setting options than those shown could be provided, for example by designing the slot guides 26, 27 as cylindrical tracks with different radii or as tracks with a shape deviating from the cylindrical shape.
  • seat width 480 mm
  • length of the front seat section 36 320 mm
  • length of the rear seat section 37 280 mm
  • Length (or height) of the back part 38 370 mm
  • distance 32/28 essentially also distance 32/40

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

La présente invention concerne un siège réglable dont les éléments siège et dossier (36 et 38) sont réglables notamment par déplacement du corps. Le siège (36) et le dossier (38) pivotent l'un par rapport à l'autre, par leurs parties qui se font face, au moyen d'au moins une première articulation librement suspendue (40 et 39). En outre, ils sont suspendus en pivot à un support (23) en des points situés à une certaine distance de la première articulation (40 et 39) au moyen d'un premier et d'un deuxième élément porteurs au moins mobiles par guidage forcé (26, 27) sur un tracé défini par ce dernier. Le premier et/ou le deuxième élément porteurs (30, 31) comportent à cet effet un levier suspendu par le premier ou le deuxième guidage forcé (26, 27) sur le support (23). Ce levier est relié par un mécanisme à levier et articulation aux éléments siège et dossier (36 et 38) de façon à permettre des déplacements relatifs limités entre le premier et/ou le deuxième élément porteurs (30, 31) ainsi que le siège et/ou le dossier.
PCT/DE1994/000064 1993-01-26 1994-01-22 Siege reglable WO1994016600A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6516563A JPH07506515A (ja) 1993-01-26 1994-01-22 調整可能な座席

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9300997U DE9300997U1 (de) 1993-01-26 1993-01-26 Verstellbarer Sitz
DEG9300997.6 1993-01-26

Publications (1)

Publication Number Publication Date
WO1994016600A1 true WO1994016600A1 (fr) 1994-08-04

Family

ID=6888565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/000064 WO1994016600A1 (fr) 1993-01-26 1994-01-22 Siege reglable

Country Status (3)

Country Link
JP (1) JPH07506515A (fr)
DE (1) DE9300997U1 (fr)
WO (1) WO1994016600A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361865A (en) * 2000-05-06 2001-11-07 Seymour Powell Ltd Seat, such as aeroplane seat, with opening out/ rocking around common virtual axis action
EP1483987A1 (fr) * 2003-06-04 2004-12-08 Pierre-René Mayer Siège de relaxation comportant un organe souple de soutien de l'utilisateur conjointement porté par un dossier et une assise articulés entre eux montés mobiles en glissement sur un châssis
GB2486597A (en) * 2007-04-26 2012-06-20 Integrated Furniture Technologies Ltd Adjustable furniture
WO2012177142A1 (fr) * 2011-06-20 2012-12-27 Sandvik Møbler As Ferrure pour un élément de siège
US9554955B2 (en) 2007-10-01 2017-01-31 Pride Mobility Products Corporation Dual-track tilt mechanism

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404425A1 (de) * 1994-02-11 1995-08-17 Rudolf Goeckel Vorrichtung zur diffusen Ausleuchtung transparenter Flächen oder Körper
DE29600821U1 (de) * 1996-01-18 1997-05-28 Grammer Ag, 92224 Amberg Stuhl, insbesondere Bürostuhl
DE19853156B4 (de) * 1998-11-18 2006-04-13 Girsberger Holding Ag Sitz
DE10147021B4 (de) * 2001-09-25 2004-12-23 Heyde, Marcus, Dipl.-Designer Gestell für ein Sitzmöbel
JP6150597B2 (ja) * 2013-04-19 2017-06-21 コイト電工株式会社 座席装置
JP6715537B2 (ja) * 2017-07-31 2020-07-01 ユキ技研株式会社 リクライニングシート及びリクライニングシートを備えた車椅子

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430577A (en) * 1943-12-30 1947-11-11 Lorenz Anton Adjustable reclining chair
US3572829A (en) * 1968-07-18 1971-03-30 Companie Nationale Air France Tiltable air plane seat
US4877291A (en) * 1987-12-14 1989-10-31 Taylor William P Reclining chair
DE3844102A1 (de) * 1988-12-28 1990-07-05 Sondergeld Horst Dipl Designer Sitz fuer einen buerostuhl od. dgl.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430577A (en) * 1943-12-30 1947-11-11 Lorenz Anton Adjustable reclining chair
US3572829A (en) * 1968-07-18 1971-03-30 Companie Nationale Air France Tiltable air plane seat
US4877291A (en) * 1987-12-14 1989-10-31 Taylor William P Reclining chair
DE3844102A1 (de) * 1988-12-28 1990-07-05 Sondergeld Horst Dipl Designer Sitz fuer einen buerostuhl od. dgl.

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361865A (en) * 2000-05-06 2001-11-07 Seymour Powell Ltd Seat, such as aeroplane seat, with opening out/ rocking around common virtual axis action
GB2390804A (en) * 2000-05-06 2004-01-21 Seymour Powell Ltd Aeroplane seat with pivoting seat support portion
GB2390803A (en) * 2000-05-06 2004-01-21 Seymour Powell Ltd Low-loft aeroplane seat
GB2390806A (en) * 2000-05-06 2004-01-21 Seymour Powell Ltd Aeroplane seat with inflatable section
EP1483987A1 (fr) * 2003-06-04 2004-12-08 Pierre-René Mayer Siège de relaxation comportant un organe souple de soutien de l'utilisateur conjointement porté par un dossier et une assise articulés entre eux montés mobiles en glissement sur un châssis
FR2855728A1 (fr) * 2003-06-04 2004-12-10 Pierre Rene Mayer Siege de relaxation comportant une organe souple de soutien de l'utilisateur conjointement porte par un dossier et une assise articules entre eux et montes mobiles en glissement sur un chassis
GB2486597A (en) * 2007-04-26 2012-06-20 Integrated Furniture Technologies Ltd Adjustable furniture
GB2486597B (en) * 2007-04-26 2012-11-07 Integrated Furniture Technologies Ltd Adjustable furniture
US9554955B2 (en) 2007-10-01 2017-01-31 Pride Mobility Products Corporation Dual-track tilt mechanism
WO2012177142A1 (fr) * 2011-06-20 2012-12-27 Sandvik Møbler As Ferrure pour un élément de siège

Also Published As

Publication number Publication date
DE9300997U1 (de) 1994-05-26
JPH07506515A (ja) 1995-07-20

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