WO2000024294A1 - Chair with a backrest - Google Patents
Chair with a backrest Download PDFInfo
- Publication number
- WO2000024294A1 WO2000024294A1 PCT/IB1999/001725 IB9901725W WO0024294A1 WO 2000024294 A1 WO2000024294 A1 WO 2000024294A1 IB 9901725 W IB9901725 W IB 9901725W WO 0024294 A1 WO0024294 A1 WO 0024294A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat plate
- backrest
- legs
- cross tube
- armrest
- Prior art date
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
- A47C1/12—Theatre, auditorium, or similar chairs
- A47C1/124—Separate chairs, connectible together into a row
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/68—Arm-rest tables ; or back-rest tables
- A47C7/70—Arm-rest tables ; or back-rest tables of foldable type
-
- 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
- A47C3/04—Stackable chairs; Nesting chairs
- A47C3/045—Stackable chairs; Nesting chairs with tipping-up seats
Definitions
- the invention relates to a four-legged chair with a backrest, which can be stacked to save space.
- the seat plate of the chair can be folded up.
- armrests, a swivel-in shelf and a full range of coupling elements for connection with the row connection to the neighboring chairs can be attached.
- the four legs of the chair are attached to the side of the seat plate and preferably on a transversely arranged support tube, the front legs protruding from the seat plate.
- Such chairs are used in particular at mass events or when the seating offer can be expanded spontaneously.
- a type according to CH-A-562 591 has two U-shaped legs, the upper ends of which are connected in two joints. A swiveling, semicircular backrest is fastened in these joints. On each side, a tab extends between the legs, which is articulated on the front leg and hangs on a pin on the rear leg, which runs in a longitudinal slot of the tab. When the legs are folded together, the pins move forward in the longitudinal slots, the tabs swivel upwards at the rear and the seat plate lowers at the front. Disadvantages here are the very narrow, hardly supportive backrest and the uncomfortable armrest on the front area of the backrest.
- a folding chair with two U-shaped legs is known from NL-A-8 401 170, the rear leg being articulated below the seat plate, while the front leg extends into the backrest in its extension.
- the seat plate is articulated at the transition between the front leg and backrest.
- the front and rear legs are connected in an X-shaped and articulated manner below the seat plate. When the legs are folded, the seat plate swivels in the vertical direction towards the backrest.
- This folding chair does not offer the option of attaching armrests through modular additions and the backrest cannot be folded in, so that the chair is also bulky during transport or when parked.
- DE-A-29 30 140 proposes a folding chair where the front and rear legs, seat frame and back and armrests are pivotally fixed together in two nodes lying on an axis.
- the nodes represent complex articulated connections that have to be tensioned or released by the user.
- the folding chair according to WO-A-88 06019 also has two U-shaped legs, which are X-shaped and articulated below the seat level. Cross struts extend between the legs at the front and rear, to which a flexible seat cover is attached. A bow-shaped armrest, which engages behind the backrest, is articulated to the upper ends of the rear leg, which is connected to the upper ends of the rear leg projecting. When the legs are folded up, the seat cover folds up and the armrest swings downwards.
- This chair is not very suitable for long periods of sitting, as the backrest is only a small height, has little support due to its fabric covering and the seat is also formed by a flexible, flexible covering.
- EP-A-0 365 012 shows a folding chair with two front legs and a bow-shaped arm attached to the floor. Armrests projecting to the rear are articulated at the upper ends of the front legs, which merge into the backrest and are bent upwards. Between the front legs, a seat plate is rotatably supported below the armrest, which hangs at the rear on two articulated vertical struts, which are rotatably fastened at the transition between the armrests and the backrest. Folding is done by swiveling the armrests up, which also pulls up the seat plate. When folded, this chair with its bulky frame takes up a lot of space, so that it is also little for individual transport suitable is. Furthermore, the backrest with the textile covering and the upper, transverse backrest arch is not optimally supportive for longer sitting.
- US-A-4 278 287 describes a folding chair with a U-shaped curved front leg and a bow frame, the lower part of which forms the rear leg and the upper part of which forms the backrest. The upper ends of the front leg are hinged to the backrest and the seat frame to the rear leg. There is a cross strut on the front leg on which the covered seat frame rests. When folded, the front leg and frame come to one level and the seat falls down.
- This chair also has a bulky frame with the disadvantages mentioned and the armrests designed as side struts hardly fulfill this function
- WO-A-89 00390 proposes a collapsible chair with two front and two rear legs, a seat plate and a backrest.
- the seat plate is articulated on the front and rear legs.
- the backrest is articulated at the upper ends of the front and rear legs.
- the four legs are spread like a goat, the seat plate extends horizontally and the backrest vertically, the articulation point between the seat plate and the front legs being above the second, rear articulation point of the seat plate.
- the point of articulation between the backrest and the front legs is above and in front of the second articulation point of the backrest, so that the front legs extend upward over the rear legs.
- the legs, the seat plate and the backrest lie in one plane and the articulation points are rearranged.
- the front edge of the seat plate and the upper edge of the backrest swivel downwards, at the same time the upper ends of the rear legs protrude above the upper ends of the front legs. Armrests are missing on this chair for longer, comfortable sitting and the rigid backrest is not very comfortable.
- the subject of EP-A-0 835 619 is a chair that can be dismantled with a seat part, a backrest part and rod-shaped feet.
- the seat part has a seat shell with, in principle, vertically arranged pipe sections.
- On the backrest part there are pipe sockets complementary to the pipe sections.
- In the pipe socket there is a receiving contour in which a counter contour provided at the upper end of the feet can be fixed when the feet protrude through the pipe pieces with their upper plug-in part.
- the receiving contour and the countercontour are preferably formed by an internal thread and an external thread complementary thereto.
- the object of the invention is to propose a chair with a well-supporting backrest, which can be flexibly adapted to the individual body contours and body movements.
- the chair should be stacked - one above the other and leaned against each other - to save space.
- the seat plate of the chair should be foldable, armrests and a pivoting shelf must be attachable and a quickly detachable connection to neighboring chairs must be realized in order to form To facilitate rows of chairs.
- Elementary principles are that the chair stands firmly when the user takes a seat and stands up, general stability and consideration of ergonomic criteria.
- the chair should be able to be mass-produced in a rational manner and at low cost.
- the construction must enable a design that corresponds to the taste of the time.
- An essential feature of the invention are elastic bridging pieces within the overlong front legs of the chair, which also support the elastic backrest part.
- the bridge pieces are either inserted between them as separate components or are connected in one piece to the backrest part.
- the front legs protrude through a cross tube on which the seat plate is fixed or folded up.
- these supporting brackets are rigidly attached to the cross tube.
- the brackets can be swiveled by means of rotary bearings fixed in the cross tube.
- armrests and their supports are inserted into the cross tube.
- the armrests can be swung out horizontally for stacking several chairs.
- a spring-loaded swivel mechanism is inserted between the armrest and the support supporting the armrest - this is attached to the top of the support - which pulls the armrest onto the support.
- an armrest preferably to the right of the user, has an eccentric swivel side shelf with the insertion of a tilt-swivel mechanism.
- the tilt-swivel mechanism is equipped with an overload safety device so that when the side shelf is turned, cams with inclined surfaces disengage against the resistance of a spring and the side shelf falls into the vertical rest position.
- Coupling elements are arranged on both sides of the cross tube to form rows of interconnected chairs.
- the chair according to the invention is distinguished by its utility properties with solid stability, good seating comfort, easy handling and small space requirement due to its stackability.
- the chair can be set up in a row with neighboring chairs and can be mass-produced in a rational manner.
- Figure 1A a chair according to the invention as a whole, in the use position, as a perspective view;
- Figure 1 B the chair according to Figure 1A with a foldable seat plate (rest position) put together with a second chair, as a perspective view
- 1C the chair according to FIG. 1A with a second chair, per se in the use position, one above the other, as a perspective view;
- Figure 2A a backrest to be attached to the base of the chair
- FIG. 2B the chair according to FIG. 1A with a seat cushion to be applied to the seat plate
- FIG. 2C the chair according to FIG. 1A with a backrest cushion to be applied to the backrest part;
- Figure 3A a base of the chair according to Figure 1A as a perspective view
- Figure 3B a pivot bearing with console and attached seat plate, as a partial section
- Figure 3C the pivot bearing with bracket according to Figure 3A and a cross tube, separated from each other, as a perspective view
- Figure 3D a seat plate according to Figure 3B, as a perspective partial section;
- FIG. 4 a front and rear leg inserted into the cross tube with a cover cap, right side of the chair, as a perspective view;
- Figure 5A an armrest with armrest support and armrest as a whole, as
- FIG. 5B the swivel mechanism of the armrest as an enlargement from FIG. 5A, as a partial section;
- Figure 5C the pivoting of the armrest as a schematic diagram
- Figure 6A the chair according to Figure 1A in the use position, completed with armrests according to Figure 5A and a side shelf, as a perspective view
- FIG. 6B an attached side shelf according to FIG. 6A, pivoted away in the rest position, as a perspective view;
- FIG. 6C the horizontal joint of a tilt-swivel mechanism on the side shelf according to FIG. 6A, in the swiveled out position, as an exploded view
- FIG. 6D the representation according to FIG. 6C, with the side shelf in the pivoted-in use position, as an exploded view;
- Figure 6E the vertical joint of the tilt-swivel mechanism on the side shelf according to Figure 6A, as an exploded view;
- FIG. 6F the vertical joint according to FIG. 6E, put together as a top view
- FIG. 6G the side shelf attached to the armrest in accordance with FIG. 5A with the tilt-swivel mechanism in the use position, as a vertical section;
- FIG. 7A a pair of coupling elements from two adjacent chairs according to FIG. 1A, as a perspective illustration
- Figure 7B the coupling elements according to Figure 7A, as a vertical section.
- the chair has a right and a left front leg 1,1 'as a base and a right and a left rear leg 2,2'.
- the legs 1, 1 '; 2.2' sit on the floor in a bock-like manner, spread out, the straight front legs 1, 1 'protruding through a supporting cross tube 3 at the top and the rear legs 2,2' to the front legs 1, 1 'offset inwards, are attached to the cross tube 3.
- a seat plate 4 is placed on the cross tube 3 between the back parts 10, 10 'of the front legs 1, 1' 'projecting beyond the cross tube 3.
- the rear legs 2, 2' are preferably attached to the cross tube 3 by welding, as are the front legs penetrating the cross tube 3 1, 1 'are welded to the cross tube 3.
- the seat plate 4 is either rigidly attached to the cross tube 3, for example welded, or can be folded up by additional components.
- the backrest 5, which consists of a right and a left side strut 50.50 "and the backrest part 51, which spans between the two side struts 50.50 ', is placed on the open ends 100, 100" of the backrest section 10, 10'.
- the side struts 50, 50 ' have an at least sectionally elastic bridge piece 500, 500' which lies between the upper end 100, 100 'of the backrest section 10, 10' and the connection to the backrest part 51.
- Each side strut 50, 50 ' advantageously has an upper and lower plug end 501, 501'; 502, 502 'which attaches to the bridge piece 500, 500'.
- the upper plug ends 501, 501 ' are inserted on both sides into the backrest part 51 and the lower plug ends 502, 502' into the open upper end 100, 100 'of the backrest section 10, 10'.
- the ergonomically shaped backrest part 51 is also elastic, so that when leaning against the backrest 5, the bridge pieces 500, 500 ', adapted to the load exerted by the user and his body shape, yield resiliently in all directions and the backrest part 51 also experiences an elastically adapted deformation .
- the chairs can be placed close together in a space-saving manner when the seat plate 4 is folded up, so that the back of a chair faces the front of the neighboring chair and the rear legs 2.2 "laterally into the spread legs 1, 1 '; 2.2' protrude.
- the seat plates 4 are horizontal; this form of stackability is possible regardless of whether the seat plates 4 are foldable or not.
- the pair of front legs 1, 1 '- these have a further distance than the rear legs 2,2' - protrude down next to the seat plate 4 of the chair below.
- the front legs 1, 1 'of all the chairs stacked one on top of the other lie on a horizontal plane, as do their rear legs 2,2'.
- bridge pieces 500, 500 'as separate components with upper and lower plug ends 501, 502, but in one piece together with the backrest part 51, preferably in plastic. fabric spraying process.
- these bridge pieces 500, 500 ' have lower plug ends 502, 502' for insertion into the open ends 100, 100 '.
- the cross sections of the bridge sections 500, 500 ', the legs 1, 1', 2.2 'and the connection part on the backrest part 51, quasi their side struts 50, 50' are designed essentially the same, so that there are harmonious transitions from the ends 100, 100 'of the front legs 1, 1' to the bridge pieces 500, 500 'and from here to the backrest part 51.
- an oval chair can be used to create an elegant chair.
- the seat plate 4 can be provided with a cushion 42, which consists of a lower plate-shaped cushion carrier 420, the padding 421 applied on top and a cover 422.
- the cushion 42 is fastened, for example, practically by means of screws 423 engaging through the seat plate 4 in the cushion support 420.
- the backrest part 51 can be equipped with a cushion 52, which consists of a rear plate-shaped cushion support 520, the padding 521 applied on the user side and one Coating 522 exists.
- the upholstery 52 is fastened in a similar manner, for example again by means of screws 523 which engage into the upholstery support 520 through the backrest part 51.
- Figure 3A
- brackets 6 spaced apart from one another are placed on the cross tube 3 and serve to hold a seat plate 4 attached to the brackets 6.
- the brackets 6 are rigidly connected to the cross tube 3, e.g. welded.
- the brackets 6 are pivotally mounted about the main axis D.
- FIGS. 3B and 3D On the underside of the seat plate 4, an open pocket 40 is provided on the one hand for the main axis D and on the other hand a fastening web 41 for the main axis D.
- the console 6 has a plug end 60 on one end face and, opposite this, a shaft end 61. In the assembled state, the plug end 60 is pushed into the pocket 40 and the shaft end 61 is connected to the fastening web 41, e.g. screwed.
- the bracket 6 has 7 bearing tongues (62) for receiving the pivot bearing around both sides.
- the console 6 consists of a U-profile open at the bottom.
- the roller-shaped rotary bearing 7 is fixed on the main axis D in a jacket recess 31 in the cross tube 3.
- the rotation lock is achieved by a flag 32 bent into the jacket recess 31 by the cross tube 3 and an indentation 73 on the curved jacket surface of the pivot bearing 7.
- the flag 32 is screwed into the recess 73.
- the two side surfaces 70 of the rotary bearing 7 are penetrated by the main axis D. There are 70 stop shoulders on the side surfaces. 71.72. From the bracket 6, the two bearing tongues 62 encompass both side surfaces 70 of the pivot bearing 7, so that the advantageously used two brackets 6, 6 'on the main axis D are pivotally fixed about the pivot bearings 7 positioned in the cross tube 3.
- the rear leg 2 inserted into the openings 302 of the cross tube 3 offers an upwardly open insertion opening 200 for inserting an armrest; if such is not provided, the insertion opening 200 is closed for aesthetic reasons with a cover cap 38 which has a pin 380 and a screen 381, the screen 381 encompassing the upper side of the cross tube 3 and the pin 380 being inserted in the insertion opening 200.
- An armrest 8 initially consists of a support 80, the plug end 800 below which is intended for insertion into the insertion openings 200, 200 ', which are provided on the rear legs 2, 2' and as an opening in the cross tube 3.
- the fixation against pulling out occurs e.g. by screwing from the side of the cross tube 3.
- the support 81 which holds the armrest 82, attaches to the support 80 at the top.
- a pivot mechanism 83 with the axis of rotation D1 sits between the carrier 81 and the armrest 82.
- the pivot mechanism 83 aims to pivot the armrest 82 outward from the use position about the axis of rotation D1 into the rest position. In the rest position, the armrest 82 is pivoted out so far that it does not hinder the stacked next higher chair.
- the swivel mechanism 83 Arranged around the axis of rotation D1, the swivel mechanism 83 has a spring 830, against the force of which the armrest 82 can be swiveled out of a locking device 831 in the use position.
- This lock 831 can also act in the rest position of the armrest 82.
- the locking device 831 consists of a nose 820 projecting on the underside of the armrest 82 and a complementary counter-contour 810 present on the top of the carrier 81.
- a side shelf 9 is mounted, which by means of a tilt-swivel mechanism 90 from the vertically hanging rest position to the horizontal use position in front of the
- the tilt-swivel mechanism 90 consists of a horizontal joint 91 and a vertical joint 92 attached to it at an angle.
- the horizontal joint 91 is composed of a base sleeve 910 with a stop cam 911 and a sleeve piece 912 arranged eccentrically below the side shelf 9 Recess 913.
- the sleeve piece 912 sits with its recess 913 on the base sleeve 910 and the stop cam 911 moves when the side shelf 9 is pivoted horizontally within the recess 913.
- the base sleeve 910 and the sleeve piece 912 are for locking the use position of the side shelf 9 Locking elements 914.914 'v
- a secured axle bolt 915 extends upright through the base sleeve 910, onto which the sleeve piece 912 is attached, so that the side shelf 9 can be lifted off.
- the vertical joint 92 of the tilt-swivel mechanism 90 consists of a receiving sleeve 920 and an insertion pin 922 inserted into the receiving sleeve 920, which can be pulled out to a limited extent against a spring 924.
- the receiving sleeve attaches 920 to the upper end of the support 80 of the armrest 8.
- the insertion pin 922 is angled onto the base sleeve 910 of the horizontal joint 91.
- a wedge cam 921 is arranged on the receiving sleeve 920 and a wedge-shaped complementary cam 923 is arranged on the insertion pin 922. Wedge cams 921 and complementary cams 923 work together as overload protection.
- Figures 7A and 7B in a row of chairs placed side by side can be quickly hooked into each other, so that a systematic seating of a larger area is achieved with the same spacing and the individual chair has better stability.
- mutually complementary coupling elements 39, 39 ' are fixedly arranged on the cross tube 3 on both outer sides penetrating the main axis D, which quasi extend the cross tube 3 on both sides.
- the coupling element 39 on one side of the chair has an undercut pin 390 that extends in the direction of the main axis D.
- the coupling element 39 'on the other side of the chair has an undercut engagement 390' for hanging the pin 390, the hanging being done from above.
- the attachment of the coupling elements 39, 39 ' is e.g. realized by screwing axially from the outside.
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002316368A CA2316368A1 (en) | 1998-10-22 | 1999-10-22 | Chair with a backrest |
EP99949278A EP1039817A1 (en) | 1998-10-22 | 1999-10-22 | Chair with a backrest |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98811055A EP0995376A1 (en) | 1998-10-22 | 1998-10-22 | Chair with backrest |
EP98811055.7 | 1998-10-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000024294A1 true WO2000024294A1 (en) | 2000-05-04 |
Family
ID=8236400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1999/001725 WO2000024294A1 (en) | 1998-10-22 | 1999-10-22 | Chair with a backrest |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP0995376A1 (en) |
CA (1) | CA2316368A1 (en) |
WO (1) | WO2000024294A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6481789B1 (en) | 1999-06-18 | 2002-11-19 | Center For Design Research And Development N.V. | Stackable chair |
US7156459B2 (en) | 2002-10-18 | 2007-01-02 | Center For Design Research And Development N.V. C/O Open Ark B.V. | Stackable chair |
ES2294879A1 (en) * | 2005-01-12 | 2008-04-01 | Eredu, S. Coop. | Anti panic writing table for seats |
DE202008007476U1 (en) | 2008-06-04 | 2008-07-31 | Vitra Patente Ag | Chair with elastic backrest |
CN110432679A (en) * | 2017-04-15 | 2019-11-12 | 段建辉 | A kind of operation control method of the adjustable tip-up set in classroom |
DE102019212963A1 (en) * | 2019-08-29 | 2021-03-04 | Volkswagen Aktiengesellschaft | Seat, in particular vehicle seat, made from completely biodegradable components |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10048778A1 (en) * | 2000-09-29 | 2002-04-18 | Stoll Sedus Ag | Stackable chair |
ITTO20010576A1 (en) * | 2001-06-15 | 2002-12-15 | Pro Cord Spa | CHAIR WITH WRITING BOARD. |
ITTO20010940A1 (en) * | 2001-10-04 | 2003-04-04 | Pro Cord Spa | ,,CHAIR,, |
AU2003222711A1 (en) * | 2002-05-24 | 2003-12-12 | Provenda Marketing Ag | Seat |
EP1410739A1 (en) * | 2002-10-14 | 2004-04-21 | Sedus Stoll AG | Folding chair |
EP1537806B1 (en) * | 2003-12-05 | 2007-11-28 | Pro-Cord Spa | A chair with a writing tablet |
US8696056B2 (en) | 2010-02-01 | 2014-04-15 | Steelcase Inc. | Seating unit |
US8960104B2 (en) | 2012-04-27 | 2015-02-24 | Steelcase Inc. | Table |
CN106419234A (en) * | 2016-11-17 | 2017-02-22 | 广西大学 | Chair for both babies and adults |
Citations (15)
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DE1264002B (en) * | 1961-12-13 | 1968-03-21 | Hermann Bode | Spring-loaded support for the back of seating furniture |
US3610686A (en) * | 1969-10-10 | 1971-10-05 | Shelby Williams Ind | Cast-aluminum stack chair |
CH562591A5 (en) | 1972-07-13 | 1975-06-13 | Hille Int Ltd | Folding chairs |
US4046422A (en) * | 1976-09-07 | 1977-09-06 | Center For Design Research And Development N.V. | Chair |
DE2930140A1 (en) | 1979-07-25 | 1981-02-12 | Ludwig Roner | Collapsible stackable chair with common connecting points - has supports with eyelet-like connecting heads for restricted swivel movement |
US4278287A (en) | 1979-09-04 | 1981-07-14 | Scott Paper Company | Folding seating piece |
DE3016685A1 (en) | 1980-04-30 | 1981-11-05 | Xaver 8385 Pilsting Leonhart | Folding chair with fewer points of articulation - has three steel tubes bent in U=shape with transverse connecting webs |
NL8401170A (en) | 1983-10-21 | 1985-05-17 | Acamp Freizeitmoebel Gmbh | FOLDING CHAIR. |
US4580836A (en) * | 1982-12-23 | 1986-04-08 | Intercollection Development S.A. Gyrenmoos | Chair |
WO1988006019A1 (en) | 1987-02-20 | 1988-08-25 | The Tyke Corporation | Folding 3-piece chair with link control |
WO1989000390A1 (en) | 1987-07-17 | 1989-01-26 | Jungersen, Troels | Folding chair |
EP0365012A1 (en) | 1988-10-21 | 1990-04-25 | Simon Desanta | Folding chair |
FR2649871A1 (en) * | 1989-07-20 | 1991-01-25 | Laurent Bloch Sa | Seat on beam |
US5524966A (en) * | 1993-05-27 | 1996-06-11 | Pro-Cord S.R.L. | Folding chair with tilting backrest |
EP0835619A1 (en) | 1996-10-11 | 1998-04-15 | Protoned B.V. | Demountable chair |
-
1998
- 1998-10-22 EP EP98811055A patent/EP0995376A1/en not_active Withdrawn
-
1999
- 1999-10-22 EP EP99949278A patent/EP1039817A1/en not_active Withdrawn
- 1999-10-22 WO PCT/IB1999/001725 patent/WO2000024294A1/en not_active Application Discontinuation
- 1999-10-22 CA CA002316368A patent/CA2316368A1/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1264002B (en) * | 1961-12-13 | 1968-03-21 | Hermann Bode | Spring-loaded support for the back of seating furniture |
US3610686A (en) * | 1969-10-10 | 1971-10-05 | Shelby Williams Ind | Cast-aluminum stack chair |
CH562591A5 (en) | 1972-07-13 | 1975-06-13 | Hille Int Ltd | Folding chairs |
US4046422A (en) * | 1976-09-07 | 1977-09-06 | Center For Design Research And Development N.V. | Chair |
DE2930140A1 (en) | 1979-07-25 | 1981-02-12 | Ludwig Roner | Collapsible stackable chair with common connecting points - has supports with eyelet-like connecting heads for restricted swivel movement |
US4278287A (en) | 1979-09-04 | 1981-07-14 | Scott Paper Company | Folding seating piece |
DE3016685A1 (en) | 1980-04-30 | 1981-11-05 | Xaver 8385 Pilsting Leonhart | Folding chair with fewer points of articulation - has three steel tubes bent in U=shape with transverse connecting webs |
US4580836A (en) * | 1982-12-23 | 1986-04-08 | Intercollection Development S.A. Gyrenmoos | Chair |
NL8401170A (en) | 1983-10-21 | 1985-05-17 | Acamp Freizeitmoebel Gmbh | FOLDING CHAIR. |
WO1988006019A1 (en) | 1987-02-20 | 1988-08-25 | The Tyke Corporation | Folding 3-piece chair with link control |
WO1989000390A1 (en) | 1987-07-17 | 1989-01-26 | Jungersen, Troels | Folding chair |
EP0365012A1 (en) | 1988-10-21 | 1990-04-25 | Simon Desanta | Folding chair |
FR2649871A1 (en) * | 1989-07-20 | 1991-01-25 | Laurent Bloch Sa | Seat on beam |
US5524966A (en) * | 1993-05-27 | 1996-06-11 | Pro-Cord S.R.L. | Folding chair with tilting backrest |
EP0835619A1 (en) | 1996-10-11 | 1998-04-15 | Protoned B.V. | Demountable chair |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6481789B1 (en) | 1999-06-18 | 2002-11-19 | Center For Design Research And Development N.V. | Stackable chair |
US7156459B2 (en) | 2002-10-18 | 2007-01-02 | Center For Design Research And Development N.V. C/O Open Ark B.V. | Stackable chair |
ES2294879A1 (en) * | 2005-01-12 | 2008-04-01 | Eredu, S. Coop. | Anti panic writing table for seats |
DE202008007476U1 (en) | 2008-06-04 | 2008-07-31 | Vitra Patente Ag | Chair with elastic backrest |
EP2130456A1 (en) | 2008-06-04 | 2009-12-09 | Vitra Patente AG | Chair with elastic backrest |
CN110432679A (en) * | 2017-04-15 | 2019-11-12 | 段建辉 | A kind of operation control method of the adjustable tip-up set in classroom |
DE102019212963A1 (en) * | 2019-08-29 | 2021-03-04 | Volkswagen Aktiengesellschaft | Seat, in particular vehicle seat, made from completely biodegradable components |
Also Published As
Publication number | Publication date |
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EP0995376A1 (en) | 2000-04-26 |
CA2316368A1 (en) | 2000-05-04 |
EP1039817A1 (en) | 2000-10-04 |
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