EP0586720B1 - Wooden chair and method of manufacture - Google Patents
Wooden chair and method of manufacture Download PDFInfo
- Publication number
- EP0586720B1 EP0586720B1 EP92114829A EP92114829A EP0586720B1 EP 0586720 B1 EP0586720 B1 EP 0586720B1 EP 92114829 A EP92114829 A EP 92114829A EP 92114829 A EP92114829 A EP 92114829A EP 0586720 B1 EP0586720 B1 EP 0586720B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- chair
- grooves
- middle piece
- glued
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/14—Chairs of special materials characterised by the use of laminated wood
Definitions
- the present invention relates to a chair consisting of only one material, namely wood, and the method for its production.
- Wooden chairs are known in many different versions and in various forms in the trade.
- This chair is neither stackable nor suitable for mass seating.
- the supports are connected by means of a base element lying on the floor, through which the stability of the chair is achieved.
- the object of the invention was therefore to develop a stackable chair which takes account of the attributes described, has a particular stability and, moreover, can be disposed of in an environmentally friendly and uncomplicated manner after the end of the useful life.
- the task was solved by a stackable metal-free wooden chair, which only consists of glued, press-formed wooden parts made of sheet-like wood and the wooden parts consist of a left (A) and a right (B) side part, as well as a middle part forming the seat and the backrest (C) , which are joined and glued by means of tongue (2) and groove (1), the side parts (A, B) each having supports bent downwards obliquely from a horizontal center piece, the tongue and groove connection of the side parts (A, B) with the middle part (C) in the area of the middle piece and close to the bend of the front support in such a way that the side parts have shaped notches (1) on the inside and the middle part (C) is provided with counterpart springs (2).
- the advantages of the new chair are many.
- the chair is made from only three wood-based parts, namely a left and a right side leg in which the groove for inserting the middle part is located, and a middle part which represents the seat and backrest surface, on the sides of which the tongue formation is designed for insertion into the side leg groove.
- a chair can be made in any size, whether for adults or toddlers.
- the chair width can be adjusted to the available space.
- the production can practically be carried out in a continuous assembly line production.
- the new chair is stackable to save space. It can be surface-finished, especially if the effort involved in keeping it clean plays a role.
- the disposal of the chair after the period of use is unproblematic and is most conveniently carried out by the bulky waste disposal and subsequent incineration.
- the material burns very harmlessly to harmless wood ash and carbon dioxide, very environmentally friendly.
- the chair also rots in conventional landfill sites at relatively short notice without putting a strain on the landfill.
- the material thickness of the chair components depends in detail on the type of wood used, the chip strength of the woodwork part to be glued and the type of gluing in relation to the glue and the gluing temperature.
- the woodwork component statics and the statics of the ready-to-use chair are adapted to the respective requirements by means of load tests.
- the chair manufacturing process consists in the fact that the chair components A, B and C are manufactured according to known processes as press-formed wooden parts.
- Parts A and B are provided with grooves that are designed in such a way that they correspond perfectly to the static of the chair.
- the middle part C is then provided with springs that fit exactly into the grooves of parts A and B.
- the slot is provided with the exact amount of glue required for chair assembly. It can be a quick-setting aqueous cold glue, or so-called reactive resin glue. However, hot-melt adhesives are particularly suitable.
- Hot melt adhesives make it easier to operate the chair assembly process using the robot process.
- the melt adhesive is applied in the required amount in the molten state on the groove bottom of the side parts A and B. Then the middle part C with the side springs 2 is immediately placed in the grooves 1 of parts A and B and the three parts are pressed together in the horizontal direction. The gluing takes place spontaneously.
- the new chair and the process for its manufacture make a special contribution to environmentally friendly production.
- the complete absence of metal leads to significant productivity advantages, especially when assembling the chair.
Abstract
Description
Die vorliegende Erfindung betrifft einen Stuhl, der aus nur einem Werkstoff nämlich Holz besteht, und das Verfahren zu dessen Herstellung.The present invention relates to a chair consisting of only one material, namely wood, and the method for its production.
Holzstühle sind in vielfälltigen Varianten bekannt und in den verschiedensten Formen im Handel.Wooden chairs are known in many different versions and in various forms in the trade.
Im Zeitalter der Massengesellschaften ist jedoch vor allem der Bedarf für eine möglichst einfache aber trotzdem komfortable und körpergerechte, platzsparende, in der Herstellung billige und einfach herstellbare Sitzmöglichkeit dringend gefragt.In the age of mass societies, however, there is an urgent need for a seat that is as simple as possible, yet comfortable and ergonomic, space-saving, cheap to manufacture and easy to manufacture.
Vor allem spielen heute umweltrelevante Aspekte bezüglich dem zur Herstellung eines Artikels verwendeten Material und dem Produktionsverfahren zur Herstellung des Produktes eine immer entscheidendere Rolle beim Innovationsfortschritt.Above all, environmentally relevant aspects with regard to the material used for the manufacture of an article and the production process for the manufacture of the product play an increasingly decisive role in the progress of innovation.
Aus der US-A- 2 215 540 ist ein metallfreier Entspannungsholzstuhl bekanntgeworden, der lediglich aus verleimten pressgeformten Holzwerkteilen aus flächenförmigem Holz besteht und die Holzwerkteile aus einem linken und einem rechten Seitenteil bestehen, sowie einem den Sitz und die Rückenlehne bildenden Mittelteil, die mittels Feder und Nut zusammengefügt und verleimt werden, vgl. die Figuren 5,6,10 und 11 in der US-Patentschrift.From US-A-2 215 540 a metal-free relaxation wooden chair is known, which consists only of glued press-formed wooden parts made of sheet-like wood and the wooden parts consist of a left and a right side part, as well as a middle part forming the seat and the backrest, which is by means of a spring and groove are joined and glued, cf. Figures 5,6,10 and 11 in the US patent.
Dieser Stuhl ist weder stapelbar noch zur Massenbestuhlung geeignet. Bei diesem Stuhl sind die Abstützungen mittels eines auf dem Boden aufliegenden Basiselement verbunden, durch welches die Stabilität des Stuhls erzielt wird.This chair is neither stackable nor suitable for mass seating. In this chair, the supports are connected by means of a base element lying on the floor, through which the stability of the chair is achieved.
Aufgabe der Erfindung war es deshalb einen stapelbaren Stuhl zu entwickeln der den geschilderten Attributen Rechnung trägt, eine besondere Stabilität aufweist und darüberhinaus nach dem Ende der Nutzungsdauer umweltverträglich und in unkomplizierter Weise entsorgt werden kann.The object of the invention was therefore to develop a stackable chair which takes account of the attributes described, has a particular stability and, moreover, can be disposed of in an environmentally friendly and uncomplicated manner after the end of the useful life.
Die Aufgabe wurde gelöst durch einen stapelbaren metallfreien Holzstuhl, der lediglich aus verleimten pressgeformten Holzwerkteilen aus flächenförmigem Holz besteht und die Holzwerkteile aus einem linken (A) und einem rechten (B) Seitenteil bestehen, sowie einem den Sitz und die Rückenlehne bildenden Mittelteil (C), die mittels Feder (2) und Nut (1) zusammengefügt und verleimt werden, wobei die Seitenteile (A,B) jeweils von einem horizontalen Mittelstück schräg nach unten abgebogene Abstützungen aufweisen, die Feder-Nut-Verbindung der Seitenteile (A,B) mit dem Mittelteil (C) im Bereich des Mittelstücks und nahe der Abbiegung der vorderen Abstützung derart ausgebildet ist, daß die Seitenteile auf der jeweiligen Innenseite mitförmige Auskerbungen (1) besitzen und der Mittelteil (C) mit gegenpartigen Federn (2) versehen ist.The task was solved by a stackable metal-free wooden chair, which only consists of glued, press-formed wooden parts made of sheet-like wood and the wooden parts consist of a left (A) and a right (B) side part, as well as a middle part forming the seat and the backrest (C) , which are joined and glued by means of tongue (2) and groove (1), the side parts (A, B) each having supports bent downwards obliquely from a horizontal center piece, the tongue and groove connection of the side parts (A, B) with the middle part (C) in the area of the middle piece and close to the bend of the front support in such a way that the side parts have shaped notches (1) on the inside and the middle part (C) is provided with counterpart springs (2).
Die Vorteile des neuen Stuhls sind vielfälltig. So wird der Stuhl aus lediglich drei Holzwerkstoffteilen hergestellt, nämlich einem linken und einem rechten Seitenschenkel in denen sich der Nut zur Einfügung des Mittelteils befindet, sowie einem Mittelteil
welches die Sitz- und Rückenlehnfläche darstellt, an deren Seiten die Federausbildung zur Einfügung in die Seitenschenkelnute ausgebildet ist.The advantages of the new chair are many. The chair is made from only three wood-based parts, namely a left and a right side leg in which the groove for inserting the middle part is located, and a middle part
which represents the seat and backrest surface, on the sides of which the tongue formation is designed for insertion into the side leg groove.
Durch Variation der Massstäbe dieser Teile kann ein Stuhl in beliebiger Grösse, ob für Erwachsene oder Kleinkinder, hergestellt werden.By varying the scale of these parts, a chair can be made in any size, whether for adults or toddlers.
Durch Variation des Breitenmasses des Stuhlmittelteils kann ein schmälerer oder breiterer Stuhl hergestellt werden. Bei einer Massenbestuhlung kann so die Stuhlbreite dem vorhandenen Platzangebot angepasst werden.By varying the width of the middle part of the chair, a narrower or wider chair can be produced. With mass seating, the chair width can be adjusted to the available space.
Dies begünstigt eine geringe Zwischenproduktlagerung, da bei gleicher Masshöhe des Stuhls immer nur die gleichen Seitenschenkelgrössen erforderlich sind.This favors a low level of intermediate product storage, since only the same side leg sizes are required for the same height of the chair.
Dies stützt die moderne just-in-time Produktion.This supports modern just-in-time production.
Die Produktion kann in einer fortlaufenden Fliessbandproduktion praktisch aus dem Stand abgewickelt werden.The production can practically be carried out in a continuous assembly line production.
Angefangen von der Produktion der Stuhlbestandteile bis zum fertigen Stuhl ist EDV-gesteuert eine kurze Zykluszeit realisierbar.Starting with the production of the chair components through to the finished chair, a short cycle time can be realized by computer control.
Der neue Stuhl ist raumsparend stapelbar. Er kann oberflächenveredelt werden, insbesondere, wenn der Aufwand für die Reinhaltung eine Rolle spielt.The new chair is stackable to save space. It can be surface-finished, especially if the effort involved in keeping it clean plays a role.
Die Entsorgung des Stuhls nach der Gebrauchsdauer ist unproblematisch und erfolgt am zweckmässigsten durch die Sperrmüllabfuhr und anschliessende Verbrennung.The disposal of the chair after the period of use is unproblematic and is most conveniently carried out by the bulky waste disposal and subsequent incineration.
Das Material verbrennt sehr rückstandsarm zu harmloser Holzasche und zu Kohlendioxid, sehr umweltfreundlich.The material burns very harmlessly to harmless wood ash and carbon dioxide, very environmentally friendly.
Der Stuhl verrottet aber auch auf herkömmlichen Mülldeponien relativ kurzfristig ohne die Deponie rückstandserschwerend zu belasten.However, the chair also rots in conventional landfill sites at relatively short notice without putting a strain on the landfill.
Die Erfindung wird durch die folgenden Figuren demonstriert.
- Fig. 1
- zeigt die perspektivistische Darstellung des Stuhls in gebrauchsfertigem Zustand
- Fig. 2
- zeigt die Bestandteile des Stuhls, den linken Seitenteil A, den rechten Seitenteil B, sowie den Sitz und die Rückenlehne bildenden Mittelteil C.
Die Figur zeigt wie die Seitenteile des Stuhls mit ausgefrästem Nut 1 mit dem Mittelteil, das die dem Nut entsprechendausgebildete Feder 2 besitzt, während der Montage zusammengefügt und verleimt werden. - Fig. 3
- zeigt einen Stapel von fünf ineinander gestellten Stühlen.
Die raumsparende Anordnung wird aus dieser Darstellung deutlich sichtbar. - Fig 4
- zeigt einen gebrauchsfertigen Normstuhl für erwachsene Personen.
Die Zahlen sind beispielhafte Werte für die Abmessungen eines solchen Stuhls in Millimetern bezüglich der Materialstärke und räumlichen Abmessung.
- Fig. 1
- shows the perspective view of the chair in ready-to-use condition
- Fig. 2
- shows the components of the chair, the left side part A, the right side part B, as well as the middle part C forming the seat and the backrest.
The figure shows how the side parts of the chair with milled groove 1 are joined and glued together during assembly with the middle part, which has thetongue 2 designed corresponding to the groove. - Fig. 3
- shows a stack of five nesting chairs.
The space-saving arrangement is clearly visible from this illustration. - Fig. 4
- shows a ready-to-use standard chair for adults.
The numbers are exemplary values for the dimensions of such a chair in millimeters with regard to the material thickness and spatial dimensions.
Die Materialstärke der Stuhlbestandteile hängt im Detail von der angewandten Holzart, der Spanstärke des zu verleimenden Holzwerkteils und der Art der Verleimung in Bezug auf den Leim und die Verleimungstemperatur ab.The material thickness of the chair components depends in detail on the type of wood used, the chip strength of the woodwork part to be glued and the type of gluing in relation to the glue and the gluing temperature.
Die Holzwerkteilstatik sowie die Statik des gebrauchsfertigen Stuhls wird mittels Belastungstests den jeweiligen Anforderungen angepasst.The woodwork component statics and the statics of the ready-to-use chair are adapted to the respective requirements by means of load tests.
Das Stuhlherstellverfahren besteht darin, dass die Stuhlbestandteile A,B und C, nach bekannten Verfahren als pressgeformte Holzwerkteile hergestellt werden.The chair manufacturing process consists in the fact that the chair components A, B and C are manufactured according to known processes as press-formed wooden parts.
Die Teile A und B werden mit Nuten versehen, die so augebildet sind, dass sie der Stuhlstatik bestens entsprechen.Parts A and B are provided with grooves that are designed in such a way that they correspond perfectly to the static of the chair.
Als Gegenpart ist dann das Mittelteil C mit Federn versehen, die exakt in die Nuten der Teile A und B passen.As a counterpart, the middle part C is then provided with springs that fit exactly into the grooves of parts A and B.
Der Nutschlitz wird zur Stuhlmontage mit genau erforderlicher Leimmenge versehen. Dabei kann es sich um schnellbindenden wässrigen Kaltleim handeln, oder sogenannte Reaktivharzleime. Insbesondere geeignet sind jedoch Schmelzkleber.The slot is provided with the exact amount of glue required for chair assembly. It can be a quick-setting aqueous cold glue, or so-called reactive resin glue. However, hot-melt adhesives are particularly suitable.
Schmelzkleber ermöglichen es besser das Stuhlmontageverfahren im Roboterverfahren zu betreiben.Hot melt adhesives make it easier to operate the chair assembly process using the robot process.
Der Schmelzkleber wird in der erforderlichen Menge in geschmolzenem Zustand auf den Nutboden der Seitenteile A und B aufgetragen. Danach wird sofort das Mittelteil C mit den Seitenfedern 2 in die Nuten 1 der Teile A und B gesetzt und die drei Teile werden in waagerechter Richtung zusammengepresst. Die Verleimung erfolgt spontan.The melt adhesive is applied in the required amount in the molten state on the groove bottom of the side parts A and B. Then the middle part C with the
Der neue Stuhl und das Verfahren zu deren Herstellung stellen einen besonderen Beitrag zur umweltschonenden Produktion dar. Die vollkommene Absenz von Metall führt zu bedeutenden Produktivitätsvorteilen insbesondere bei der Montage des Stuhls.The new chair and the process for its manufacture make a special contribution to environmentally friendly production. The complete absence of metal leads to significant productivity advantages, especially when assembling the chair.
Claims (2)
- Pilable, metal free wooden chair, which consists entirely out of glued, pressformed woodwork parts made from wooden panels and the woodwork parts of said chair exist as one left side-part (A) and one right side-part (B) and one middle piece (C) forming the seat and the backrest, which are mount together by tongue (2) and groove (1) and the use of glue, and where the side-parts consist out of a horizontal middle part with oblique downleading stays on each end and where the tongue and groove joints of the side parts (A)(B) with the middle piece (C) are located on the horizontal part at the respective inner side of the side-parts close to the frontal curve of the oblique stays and where the side-parts (A)(B) have grooves (1) at that specific location that fit together with the respective tongues (2) on each side of the middle piece (C).
- Method for manufacturing of a metal free, pilable wooden chair according to Claim 1, made from pressformed, glued woodwork parts, wherein said chair consists only out of three parts, a left side-part (A), a right side-part (B) both having grooves (1) on their respective inner side and one middle piece that forms the seat and the backrest (C), that has tongues (2) on each side which fit exactly in the respective grooves (1) of the respective side-part (A)(B), and that the grooves are filled with glue and that afterwards the tongues (2) of the middle piece (C) are put in the respective grooves of the side-parts (A) and (B) and all three parts are pressed together.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59201619T DE59201619D1 (en) | 1992-08-31 | 1992-08-31 | Wooden chair and manufacturing process. |
| DK92114829.2T DK0586720T3 (en) | 1992-08-31 | 1992-08-31 | Wooden chair and method of making such a chair |
| AT92114829T ATE119364T1 (en) | 1992-08-31 | 1992-08-31 | WOODEN CHAIR AND PRODUCTION PROCESS. |
| EP92114829A EP0586720B1 (en) | 1992-08-31 | 1992-08-31 | Wooden chair and method of manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92114829A EP0586720B1 (en) | 1992-08-31 | 1992-08-31 | Wooden chair and method of manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0586720A1 EP0586720A1 (en) | 1994-03-16 |
| EP0586720B1 true EP0586720B1 (en) | 1995-03-08 |
Family
ID=8209961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92114829A Expired - Lifetime EP0586720B1 (en) | 1992-08-31 | 1992-08-31 | Wooden chair and method of manufacture |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0586720B1 (en) |
| AT (1) | ATE119364T1 (en) |
| DE (1) | DE59201619D1 (en) |
| DK (1) | DK0586720T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD751329S1 (en) | 2013-11-25 | 2016-03-15 | Lifetime Products, Inc. | Chair |
| USD753945S1 (en) | 2012-11-26 | 2016-04-19 | Lifetime Products, Inc. | Chair |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2215540A (en) * | 1936-07-10 | 1940-09-24 | Breuer Marcel | Chair |
| BE491612A (en) * | 1948-11-15 | 1949-10-31 | ||
| FR1333136A (en) * | 1962-06-08 | 1963-07-26 | Grosfillex Freres | Seat assembled in row and stackable in column |
-
1992
- 1992-08-31 AT AT92114829T patent/ATE119364T1/en not_active IP Right Cessation
- 1992-08-31 DE DE59201619T patent/DE59201619D1/en not_active Expired - Fee Related
- 1992-08-31 DK DK92114829.2T patent/DK0586720T3/en active
- 1992-08-31 EP EP92114829A patent/EP0586720B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD753945S1 (en) | 2012-11-26 | 2016-04-19 | Lifetime Products, Inc. | Chair |
| USD751329S1 (en) | 2013-11-25 | 2016-03-15 | Lifetime Products, Inc. | Chair |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0586720A1 (en) | 1994-03-16 |
| ATE119364T1 (en) | 1995-03-15 |
| DK0586720T3 (en) | 1995-08-07 |
| DE59201619D1 (en) | 1995-04-13 |
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