EP0689785B1 - Elément de siège résistant au vandalisme - Google Patents
Elément de siège résistant au vandalisme Download PDFInfo
- Publication number
- EP0689785B1 EP0689785B1 EP19950420170 EP95420170A EP0689785B1 EP 0689785 B1 EP0689785 B1 EP 0689785B1 EP 19950420170 EP19950420170 EP 19950420170 EP 95420170 A EP95420170 A EP 95420170A EP 0689785 B1 EP0689785 B1 EP 0689785B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- mesh
- foam
- cushion
- laceration
- 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
Links
- 239000006260 foam Substances 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 8
- 230000004927 fusion Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 54
- 208000034693 Laceration Diseases 0.000 description 19
- 238000000576 coating method Methods 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 17
- 230000032798 delamination Effects 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004080 punching Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009970 fire resistant effect Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 206010061218 Inflammation Diseases 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- A47C7/02—Seat parts
- A47C7/24—Upholstered seats
- A47C7/26—Upholstered seats with reinforcement of the external layer of the upholstery, e.g. vandal resistant
Definitions
- the seats of public transport are increasingly the object of acts vandalism consisting of either punching, puncturing, or lacerating with utensils sharp and sharp, either peel or delaminate them by tearing off the layers making up the covering the back and seat cushions, either covering them with paint or other dye product sprayable with a bomb, or finally to try to make them burn.
- U.S.-A-3,647,608 describes a composite seat element resistant to punching and laceration comprising a resistant outer layer, a layer anti-laceration formed from fibers or metallic threads, non-woven or forming meshes, and a comfort layer consisting of a synthetic foam in which the layer anti-laceration is submerged, the layers being bonded by foam.
- Patent EP-A-190,064 provides the anti-laceration coating, on the one hand, in replacing the metallic fibers and wires with a knitting of thin steel and multi-strand wires, and, on the other hand, by adding a protective layer constituted by an anti-fire complex.
- the various layers of the coating are linked by a flexible adhesive, for example based on polyurethane.
- One of the objects of the invention is to provide a seat element which does not have not the disadvantages of current elements, i.e. offering good resistance to delamination, without affecting comfort and anti-laceration function.
- the seat element according to the invention also aims to remedy this disadvantage.
- This seat element is of the compound type, as described in AU-B-591030, a foam cushion protected by a composite covering comprising a first layer of flexible outer covering, knitted, woven or nonwoven, one layer anti-laceration consisting of a lattice of knitted wire, and a bonding layer thin and made of a flexible synthetic material.
- the bonding layer is composed of two plies in polyethylene which, arranged on either side of the wire mesh, are linked to each other at through the lattice by localized fusion of their constituent material, after flame of one of their face, one of these plies being similarly bonded to the coating layer outside, while the cushion is made of compressible foam and has a thickness between 15 and 35 mm and that the face of the element coming into contact with the user is concave at least transversely.
- the comfort foam compresses to the maximum, without offering resistance allowing the sharp object to pass through the mesh and, therefore, pass through it. It result that the laceration is limited to the outer layer which, thanks to its fusion bond with the trellis, cannot be delaminated.
- the reference numeral 2 denotes the outer layer constituted by a fabric, by a textile substrate, woven or not, in natural and / or synthetic fibers
- the references 3a and 3b designate the two layers of a bonding layer trapping a wire mesh 4
- 5 denotes a comfort layer
- 6 a rigid metal or plastic wall.
- the sheets 3a and 3b are made of polyethylene.
- Layer 3a is linked to the tablecloth exterior 2 by fusion after flame.
- the sheet 3b is linked to the sheet 3a by fusion after flaming by enclosing the lattice 4, which is thus embedded between these two layers.
- the anti-laceration mesh 4 is, in known manner, obtained by knitting yarns mono or multi-metal metallic to offer flexibility allowing it to bend.
- the comfort layer 5 is made of polyurethane foam and has, according to the invention, a thickness between 15 and 35 mm. Its connection with the web 3b, is ensured either by partial melting of this sheet 3b after flame treatment, or by a layer of flexible glue.
- the material of the foam is chosen from the materials synthetic to obtain a sufficient density to ensure comfort, while with good compressibility to sharp action. Polyurethane foams or silicones meet this definition.
- the comfort of the user is ensured both by the foam of comfort 5, but also by the flexibility of the covering A formed by layers 2 to 4, layers which, thanks to their mode of connection, retain their natural flexibility and without altering the fluffy of the element.
- connection of the comfort layer 5 with the sheet 3b can very well be assured by a flexible adhesive depositing in the liquid state, and having a lesser adhesion than a viscous glue, since the delamination of coating A with respect to the layer 5 is impossible.
- the embodiment shown in Figure 3 differs from the previous one by the presence, between the ply 3b and the comfort layer 5, of a fire-resistant ply 8, composed for example of an aramid fiber felt.
- FIG. 6 illustrates a form of implementation of the method for manufacturing the composite coating A. It relates more particularly to the coating shown in the Figure 3 and composed of an outer layer 2, a ply 3a, a ply 3b, a ply fireproof 8 and a wire mesh 4. These different layers, sheets and mesh are continuously assembled at a station which they supply from a coil not shown. AT this station, the sheet 3a passes in front of a row of burners 10 whose flames 12 carry one of its faces has a temperature favoring the local melting of its constituent material. Immediately after the burners, the sheet 3a is pressed between two pressure rollers 13 against the outer layer 2 to which it bonds by fusion to form a complex 14.
- a another station a row of burners 15 produces flames 16 which locally carry the sheet 3b at its melting temperature. After this flaming, the sheet 3b passes between two pressure rollers 17 which press it against the fire-resistant layer 8 and thus ensure its connection positive with this layer to form a complex 15.
- the plies 3a and 3b are subjected by the pressure rollers 12, 17 and 19 to a reduction in their thickness.
- their initial thickness is of the order of 1.5 mm
- their final thickness is of the order of 0.8 mm, which leads to a composite coating A having a thickness of the order of 2 mm.
- each seat element is then formed, either by in situ molding, or by assembly.
- the coating A is previously conformed to the shape of the future element and arranged in the mold for forming the foam cushion, so that the resin constituting this cushion ensures the bond by adhesion of the cushion with the coating A and with the rigid part 6, also added to the mold.
- the foam cushion is molded separately and is bonded, on the one hand, to the plate support 6 and, on the other hand, with complex coating A.
- the seat element B or the back element C is shaped as a wafer. In the form shown in these figures, it is made up of coating A and foam 5 comfort and fits into a suitable housing 22 of the frame 23 of the seat. The bottom 22a of this housing replaces the plate 6 of the previous embodiments.
- Each element B or C is linked to the frame 23 by fixing means allowing its interchangeability.
- each element A or B has a face 20 coming into contact with the user who is concave at least transversely, so that in case of laceration of the outer layer, as shown in 24 in the figure 5, the edges of the slit thus produced tend to approach each other under the movements of the user while progressively masking the slit.
- This arrangement which provides self-closing of the slot, by elastic recovery and surface compression, discomfort delamination of the coating and makes the slit less visible, therefore less plausible for a vandalism.
- the sectioned strands remain included in the melted polyethylene of the plies 3a-3b and therefore do not risk injuring the user through the outer layer 2.
- the seat element according to the invention allows, by the combination of its components and their mode of connection, but also of its very form, to meet most of the anti vandalism constraints, namely laceration, punching, delamination and even fire resistance.
Landscapes
- Laminated Bodies (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Description
- la résistance à la pénétration, par exemple comme dans FR-A-2 592 334, en ajoutant au treillis métallique un treillis en fibres synthétiques,
- la résistance à l'inflammation, en remplaçant la couche externe textile par une couche en fibres synthétiques serrées comme dans FR-A-2 283 201,
- la transmission de la combustion, par ajout d'une nappe anti feu comme dans EP-A-190 064 et U.S. 4 673 613, ou en comprimant les nappes entourant le treillis métallique pour en éliminer les gaz, alors qu'elles ne sont pas encore durcies, comme dans FR-A-2 614 515.
Claims (1)
- Elément de siège résistant au vandalisme et venant en appui sur une surface rigide et indéformable, composé d'un coussin en mousse (5) protégé par un revêtement composite (A) comprenant une première couche (2) de revêtement extérieur souple, tricotée, tissée ou non tissée, une couche antilacération (4) constituée par un treillis de fils métalliques tricotés, et une couche de liaison de faible épaisseur et constituée par une matière synthétique souple, cette couche de liaison s'étendant de part et d'autre du treillis et étant liée d'un côté au revêtement extérieur souple et de l'autre côté du coussin, caractérisé en ce que la couche de liaison est composée de deux nappes en polyéthylène (3a, 3b) qui, disposées de part et d'autre du treillis métallique (4), sont liées l'une à l'autre à travers le treillis (4) par fusion localisée de leur matière constitutive après, flammage de l'une de leur face l'une (3a) de ces nappes étant liée de la même façon à la couche de revêtement extérieure (2), tandis que le coussin (5) est réalisé en mousse compressible et a une épaisseur comprise entre 15 et 35 mm et que la face (20) de l'élément venant en contact avec l'utilisateur est concave au moins transversalement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9408305 | 1994-06-29 | ||
| FR9408305A FR2721812B1 (fr) | 1994-06-29 | 1994-06-29 | Element de siege resistant au vandalisme |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0689785A1 EP0689785A1 (fr) | 1996-01-03 |
| EP0689785B1 true EP0689785B1 (fr) | 1998-08-12 |
Family
ID=9465030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19950420170 Expired - Lifetime EP0689785B1 (fr) | 1994-06-29 | 1995-06-27 | Elément de siège résistant au vandalisme |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0689785B1 (fr) |
| DE (1) | DE69503982T2 (fr) |
| ES (1) | ES2121322T3 (fr) |
| FR (1) | FR2721812B1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2317363A (en) * | 1996-09-20 | 1998-03-25 | C M I | Forming a cut resistant material |
| DE19825544C2 (de) * | 1998-06-08 | 2001-02-22 | Saxonia Weberei Gmbh | Verfahren und Vorrichtung zum Herstellen eines Sitzbezugsstoffes für schnittgeschützte Sitzpolster sowie Sitzbezugsstoff |
| RU2149784C1 (ru) * | 1998-08-18 | 2000-05-27 | Акционерное общество открытого типа "Одиссей-РТИ" | Элемент сиденья, устойчивого к вандализму и распространению огня |
| EP1719613A1 (fr) * | 2005-05-04 | 2006-11-08 | Dynatex S.A. | Materiaux composite résistant aux balles, aux coupures et aux piqures |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3647608A (en) | 1970-01-26 | 1972-03-07 | Gen Tire & Rubber Co | Cut-resistant foam article |
| FR2283201A1 (fr) | 1974-09-02 | 1976-03-26 | Compin Ets | Procede permettant d'empecher la combustion des mousses de polyurethane |
| US4423102A (en) * | 1979-02-27 | 1983-12-27 | Etablissements M. Duret & Fils | Covering structure for seating or the like |
| FR2576200B1 (fr) | 1985-01-21 | 1987-04-03 | Sofanor Sa | Revetement anti-vandalisme pour sieges |
| US4673613A (en) | 1985-03-21 | 1987-06-16 | Vickers Xatal Pty. Ltd. | Laminate material comprising polyurethane and metal mesh |
| FR2592334B1 (fr) | 1985-12-27 | 1987-12-18 | Sable | Feuille composite pour le revetement de sieges et son procede de fabrication |
| AU591030B2 (en) * | 1987-02-20 | 1989-11-23 | Vickers Xatal Pty. Ltd. | Seat upholstery |
| GB2204235B (en) | 1987-04-29 | 1990-10-03 | Henderson S Federal Spring Wor | Vandal resistant seat |
| EP0512382B1 (fr) * | 1991-05-06 | 1995-11-02 | C.A. Greiner & Söhne Gesellschaft M.B.H. | Siège, notamment siège rembourré pour transport commun |
-
1994
- 1994-06-29 FR FR9408305A patent/FR2721812B1/fr not_active Expired - Fee Related
-
1995
- 1995-06-27 EP EP19950420170 patent/EP0689785B1/fr not_active Expired - Lifetime
- 1995-06-27 DE DE1995603982 patent/DE69503982T2/de not_active Expired - Fee Related
- 1995-06-27 ES ES95420170T patent/ES2121322T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2721812B1 (fr) | 1996-08-30 |
| DE69503982T2 (de) | 1998-12-10 |
| EP0689785A1 (fr) | 1996-01-03 |
| ES2121322T3 (es) | 1998-11-16 |
| FR2721812A1 (fr) | 1996-01-05 |
| DE69503982D1 (de) | 1998-09-17 |
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