EP1944141A2 - Procédé de fabrication de coques pour sièges - Google Patents
Procédé de fabrication de coques pour sièges Download PDFInfo
- Publication number
- EP1944141A2 EP1944141A2 EP08000422A EP08000422A EP1944141A2 EP 1944141 A2 EP1944141 A2 EP 1944141A2 EP 08000422 A EP08000422 A EP 08000422A EP 08000422 A EP08000422 A EP 08000422A EP 1944141 A2 EP1944141 A2 EP 1944141A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layers
- gluing
- fibers
- flocking
- layer
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- 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 method for producing curved, multi-layered seat shells, in particular of chairs, in which the multiple layers of the seat are glued together using pressure and heat.
- the gluing of the individual layers takes place in large presses, wherein the layers are pressed from their next flat shape at the same time in the desired curved final shape of the seat.
- High-pressure laminates High Pressure Laminates
- the outer layers which may consist of colored papers impregnated with synthetic resin, such as melamine, because they have very good and durable surface properties. The surface does not have to be aftertreated in this case.
- Melamine is compatible with common wood glue.
- presses for gluing such layers by means of wood glue are in particular high-frequency presses, in which the wood glue is heated due to the water contained in it by the high-frequency radiation and thereby activated.
- the press and the individual layers - at least when they are essentially dry - are less affected by the high-frequency radiation and remain relatively cold.
- the seats are superficially smooth and thus quite slippery. It is known to apply an anti-slip on the seat, but this requires a subsequent operation.
- the invention has as its object to provide a rational method for producing an improved seat shell of the type mentioned, which is not slippery at least in the area of the seat and also looks good and appealing.
- the solution of this task according to the invention is that at least one of the two outer layers of the seat shell is provided on the outside before Verleiem with the other layers in the still flat state at least partially with a flocking.
- the layer to be flocked is provided with an adhesive application, after which fibers are applied to this adhesive application. Under the action of electrostatic forces, the fibers align themselves perpendicularly to the adhesive application and are fixed in this position during setting or when solidifying the adhesive. The result is a velvety surface.
- the flocking is virtually unaffected by the subsequent pressure and heat treatment in the press to glue the multiple plies and retains virtually 100% of its beneficial properties. This is especially true if the gluing is performed in such a high frequency press that the individual layers including the Belockung and the press remain relatively cold and immediately practically only the glue is heated and this only to an activation temperature of 100 ° C. for
- the adhesive application must be carried out using a sufficiently heat-resistant adhesive which is not adversely affected by the heat applied during the gluing of the layers. Suitable
- two-component adhesives which have a heat resistance greater than 100 °.
- the fibers used must also be sufficiently heat-resistant. Fibers made of a polyamide, such as polyamide 6.6, which have this property are particularly suitable for use in the process according to the invention.
- the application of the adhesive as well as of the fibers is substantially facilitated by the "flat state" of the layer to be flocked, wherein the term "flat state” should also include a one-dimensionally bent state of the layer, so that the layer is e.g. how a sheet of paper could be redirected around a roll in a printer while being coated with the adhesive and / or fibers.
- the application of adhesive can be applied over the entire surface of the surface to be flocked by brushing or spraying. Preferably, however, it is applied only over part of the area, for which the screen printing process is particularly suitable. It can also be decorative surface patterns and with appropriate color choice of the fibers and interesting to be flocked position color contrasts are generated.
- the flocking layer being very thin with a thickness of e.g. only about 1 mm can be performed.
- the flocking layer may also be substantially thicker, e.g. up to 4 mm thick.
- the thickness depends on the length of the fibers, the fibers being used in the process according to the invention e.g. may have a length between 0.5 - 4 mm and a thickness of 1 - 20 dtex. Particular preference is given to fibers of about 1 mm in length and about 3.3 dtex in thickness.
- the flocks of the type considered are extremely durable, hard-wearing and abrasion-resistant and are not inferior to good upholstery fabrics in terms of resilience and durability. They are air-conditioning, easy to clean, waterproof, skin-friendly, protective and equal tolerances. They contain enough air to prevent sweating, which is of particular importance for seats.
- Fig. 1 1 denotes a layer of a high pressure laminate (HPL) based on a plurality of kraft papers impregnated with melamine resin. The individual layers of the high-pressure laminate are not shown.
- the thickness of the layer 1 is for example 0.6 mm.
- the layer 1 could be a so-called endless web, which in Fig. 1 running from left to right through the area shown and, for example, unrolled in front of the area shown on the left of a roll and cut to the right behind the area shown in individual pieces.
- the layer 1 is provided over the entire surface by brushing with an adhesive 3 and thus coated under a fiber application device 4 moves through.
- the application device 4 short, negatively charged fibers 5 are uniformly applied to the lying at a positive potential layer 1. Due to the electrostatic charge, the fibers 5 are aligned parallel to one another perpendicular to the layer 1.
- the fibers 5 With the setting or hardening of the adhesive of the adhesive application 3, the fibers 5 are fixed. Excess, not fixed fibers 7 are finally removed by suction with a suction device 6. On the layer 1 results in a velvety flock 8.
- Fig. 2 shows a layer 1 with a flocking 8 as the top layer of a package from a total of 7 not yet interconnected layers, the flocking 8 is on the outside.
- the inner layers, designated in total by 9, are, for example, thin wooden furs with a thickness of, for example, 1.2 mm.
- the bottommost layer 10 could, like the uppermost layer, consist of a high-pressure laminate, but this is provided on the outside instead of with a flocking, for example with a printed or colored decorative layer 11. However, flocking would also be possible here.
- a seat shell 14 can be made, for example, for a chair.
- Fig. 3 schematically shows such a press 12 in the still open state, in which a package 13 from several layers according to Fig. 2 is inserted.
- the glue required for bonding between the layers is not shown.
- the thin and thus flexible layers adapt when inserted into the press essentially already to their desired final shape.
- the press 12 is preferably a high-frequency press and the glue is a water-based wood glue.
- Fig. 4 shows under a) a finished seat 14 with seat 15 and backrest 16, as shown by the gluing of the package 13 in the molding press 12 of Fig. 3 results.
- the seat shell 14 is on one side over the entire surface, on the top of the seat 15 and the front of the backrest 16, provided with a flock 8.
- the flock 8 applied prior to gluing on the uppermost layer 1 was not affected by the pressing process in the press 12.
- FIG. 4 shows under b) a corresponding Embodiment.
- c) and d) shows Fig. 4 two further examples in which a partial area flocking pattern is applied on a partial surface such as the seat surface 15, namely in the form of several strips in Fig. 4c) and in the form of a dot pattern in Fig. 4 d) ,
- a different application technique such as the screen printing technique must be used in softer remaining patterns can be produced.
- the flocking may contrast in color to non-flocked surfaces.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007002623A DE102007002623A1 (de) | 2007-01-12 | 2007-01-12 | Verfahren zur Herstellung von Sitzschalen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1944141A2 true EP1944141A2 (fr) | 2008-07-16 |
EP1944141A3 EP1944141A3 (fr) | 2008-07-23 |
EP1944141B1 EP1944141B1 (fr) | 2012-01-04 |
Family
ID=39295928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08000422A Not-in-force EP1944141B1 (fr) | 2007-01-12 | 2008-01-10 | Procédé de fabrication de coques pour sièges |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1944141B1 (fr) |
AT (1) | ATE539863T1 (fr) |
DE (1) | DE102007002623A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD20110055A1 (it) * | 2011-04-11 | 2012-10-12 | Vernifer Mav S R L | Procedimento di nobilitazione di un elemento di seduta o parti di esso e relativo elemento di seduta o parti di esso |
CN103692506A (zh) * | 2013-12-24 | 2014-04-02 | 南京工业大学 | 一种基于木材气干密度参数的胶合木构件加压制备工艺 |
CN104526823A (zh) * | 2014-12-05 | 2015-04-22 | 柳州柏豪家具有限公司 | 一种单板弯曲木家具的定位精度补偿工艺 |
CN106378849A (zh) * | 2016-09-09 | 2017-02-08 | 南京工业大学 | 基于木材塑性的弧形胶合木构件成型方法 |
WO2017162833A1 (fr) * | 2016-03-25 | 2017-09-28 | Jmvl Developpement | Procede d'impression et de mise en forme d'un mobilier en bois |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB895167A (en) * | 1959-12-24 | 1962-05-02 | Austin Motor Co Ltd | Improvements in or relating to seats |
DE1454988A1 (de) * | 1965-05-03 | 1969-05-08 | Basf Ag | Verfahren zur Herstellung von Formkoerpern,die aus mit faserigen Substanzen verstaerkten Thermoplasten bestehen |
EP1844927A2 (fr) * | 2006-04-05 | 2007-10-17 | Azdel, Inc. | Feuilles thermoplastiques légères incluant des revêtements de renfort |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1854546U (de) * | 1961-10-05 | 1962-07-05 | Fraenkische Holzwarenfabrik Os | Buerostuhl oder aehnliche sitzgelegenheit. |
DE7907295U1 (de) * | 1979-03-15 | 1984-07-26 | Alkor GmbH Kunststoffverkauf, 8000 München | Traegerplatte mit einer darauf befindlichen dekorschicht |
-
2007
- 2007-01-12 DE DE102007002623A patent/DE102007002623A1/de not_active Withdrawn
-
2008
- 2008-01-10 AT AT08000422T patent/ATE539863T1/de active
- 2008-01-10 EP EP08000422A patent/EP1944141B1/fr not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB895167A (en) * | 1959-12-24 | 1962-05-02 | Austin Motor Co Ltd | Improvements in or relating to seats |
DE1454988A1 (de) * | 1965-05-03 | 1969-05-08 | Basf Ag | Verfahren zur Herstellung von Formkoerpern,die aus mit faserigen Substanzen verstaerkten Thermoplasten bestehen |
EP1844927A2 (fr) * | 2006-04-05 | 2007-10-17 | Azdel, Inc. | Feuilles thermoplastiques légères incluant des revêtements de renfort |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD20110055A1 (it) * | 2011-04-11 | 2012-10-12 | Vernifer Mav S R L | Procedimento di nobilitazione di un elemento di seduta o parti di esso e relativo elemento di seduta o parti di esso |
CN103692506A (zh) * | 2013-12-24 | 2014-04-02 | 南京工业大学 | 一种基于木材气干密度参数的胶合木构件加压制备工艺 |
CN103692506B (zh) * | 2013-12-24 | 2015-06-10 | 南京工业大学 | 一种基于木材气干密度参数的胶合木构件加压制备工艺 |
CN104526823A (zh) * | 2014-12-05 | 2015-04-22 | 柳州柏豪家具有限公司 | 一种单板弯曲木家具的定位精度补偿工艺 |
WO2017162833A1 (fr) * | 2016-03-25 | 2017-09-28 | Jmvl Developpement | Procede d'impression et de mise en forme d'un mobilier en bois |
FR3049208A1 (fr) * | 2016-03-25 | 2017-09-29 | Jmvl Dev | Procede d'impression et de mise en forme d'un mobilier en bois |
CN106378849A (zh) * | 2016-09-09 | 2017-02-08 | 南京工业大学 | 基于木材塑性的弧形胶合木构件成型方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1944141A3 (fr) | 2008-07-23 |
ATE539863T1 (de) | 2012-01-15 |
EP1944141B1 (fr) | 2012-01-04 |
DE102007002623A1 (de) | 2008-07-17 |
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