CA2160061A1 - Chair upholstery set - Google Patents
Chair upholstery setInfo
- Publication number
- CA2160061A1 CA2160061A1 CA 2160061 CA2160061A CA2160061A1 CA 2160061 A1 CA2160061 A1 CA 2160061A1 CA 2160061 CA2160061 CA 2160061 CA 2160061 A CA2160061 A CA 2160061A CA 2160061 A1 CA2160061 A1 CA 2160061A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- glue
- elastic
- distributing
- set according
- 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.)
- Abandoned
Links
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
Landscapes
- Laminated Bodies (AREA)
Abstract
An elastic upholstery set, more in particular - but not exclusively - for the upholstery of chairs, seats and the like as preferably used in public buildings and in vehicles for public transport, for example, whereby the elastic upholstery set is provided with a resilient armouring part and a pressure-distributing part, whereby - said joint parts are at least substantially comprised of an armoured pressure-distributing padding, on which a flexible layer is provided, or whereby - said armouring part is at least substantially comprised of a resilient armouring layer, whilst the pressure-distributing part is at least substantially comprised of a pressure-distributing layer provided thereon, characterized in that at least two adjacent parts/layers of said elastic upholstery set are bonded together.
Description
.
The invention xelates to an elas~ic uph~ls~e~y set, more in parti~ular - but not exclu~ively - for the upholstery of chairs, se~t~ and ~he like as preferably used in public ~uildings and in vehi~les for public transport, for example, whereby the ela8~ic upholstery ~e~ is provided with a re~ilient armouring p~rt and a pressur~-di~tribu~ing part, ~hereby - said joint parts are a~ least substan~ially comprised of an armoured pressure -di~tributin~ padding, on which a flexible layer is provided, or where~y - ~aid armourin~ part is at leas~ subs~antially comprised of a resilient armouring layer, whilst the pressure-distributing part is at lea~t ~ubs~antially comprised of a pressure-distributing layer provided thereon.
Such an elastic uphols~ery set is known fro~ European patent No. 0 35~ 87~, also in ~he name of Ems~a Breda B.V.
The $urniture used in public buildings or in vehicles for public transport is often a target for all sorts of ~5 vandalism. The resulting damage inflicted wi~h, for instance, a knife is generally so serious th~t the ~urniture i9 no lcnger ~uitable for fur~her use. Such acts of vandalism entail a great deal of expense, for example for municipal authorities, si~ce furniture whic~ ha~ thus 3~ been damaged and rendered unsui~able for fur~ex use needs ~o be - of~en even completely - re~laced. In one emhodiment o~ the elastic upholster~ ~et di~clo~ed in ~he aforesaid European pa~en~ the pr~ssure-distributing part is co~prised of two pres~ure-distxibutin~ layers made o~ haircloth or natur~l fibres, the technica~ ~rm ~or said fihr~s beln~
hairlock/~ocolock fibres, ~et~een which the resili~nt armouring layer, ~or example a me~al mesh ~rmouring, is sa~dwiched In ano~her em~odiment the resil ient armouring -part and the ~re~ure-distributi~g part form a reinforced padding of a foam ma~erial.
Another elastic uphol~tery set is known from French paten~
applica~ion No. 2,5~ 3~. The elastic up~olstery disclosed therein co~pxises an anti-wear top layer, a flexlble layer of ~y~the~ic aramid fibre~ evlar'l~, a r~silient armouring in ~he form of a metal mesh, as well as a waterproof layer, for ~xample made of polyurethane, The flexible ~ayer of aynt~etic aramid fibres and the me~al mesh are inte~ded to be able to withs~and the impa~t of knives wielded by vandals. A drawback of the elastic upholste~y set di~clos~d in Fren~h p~tent app~ica~lon No.
The invention xelates to an elas~ic uph~ls~e~y set, more in parti~ular - but not exclu~ively - for the upholstery of chairs, se~t~ and ~he like as preferably used in public ~uildings and in vehi~les for public transport, for example, whereby the ela8~ic upholstery ~e~ is provided with a re~ilient armouring p~rt and a pressur~-di~tribu~ing part, ~hereby - said joint parts are a~ least substan~ially comprised of an armoured pressure -di~tributin~ padding, on which a flexible layer is provided, or where~y - ~aid armourin~ part is at leas~ subs~antially comprised of a resilient armouring layer, whilst the pressure-distributing part is at lea~t ~ubs~antially comprised of a pressure-distributing layer provided thereon.
Such an elastic uphols~ery set is known fro~ European patent No. 0 35~ 87~, also in ~he name of Ems~a Breda B.V.
The $urniture used in public buildings or in vehicles for public transport is often a target for all sorts of ~5 vandalism. The resulting damage inflicted wi~h, for instance, a knife is generally so serious th~t the ~urniture i9 no lcnger ~uitable for fur~her use. Such acts of vandalism entail a great deal of expense, for example for municipal authorities, si~ce furniture whic~ ha~ thus 3~ been damaged and rendered unsui~able for fur~ex use needs ~o be - of~en even completely - re~laced. In one emhodiment o~ the elastic upholster~ ~et di~clo~ed in ~he aforesaid European pa~en~ the pr~ssure-distributing part is co~prised of two pres~ure-distxibutin~ layers made o~ haircloth or natur~l fibres, the technica~ ~rm ~or said fihr~s beln~
hairlock/~ocolock fibres, ~et~een which the resili~nt armouring layer, ~or example a me~al mesh ~rmouring, is sa~dwiched In ano~her em~odiment the resil ient armouring -part and the ~re~ure-distributi~g part form a reinforced padding of a foam ma~erial.
Another elastic uphol~tery set is known from French paten~
applica~ion No. 2,5~ 3~. The elastic up~olstery disclosed therein co~pxises an anti-wear top layer, a flexlble layer of ~y~the~ic aramid fibre~ evlar'l~, a r~silient armouring in ~he form of a metal mesh, as well as a waterproof layer, for ~xample made of polyurethane, The flexible ~ayer of aynt~etic aramid fibres and the me~al mesh are inte~ded to be able to withs~and the impa~t of knives wielded by vandals. A drawback of the elastic upholste~y set di~clos~d in Fren~h p~tent app~ica~lon No.
2,5g~,334 is th~t in pr~ctice a person using the ~eat will ~5 be bothered by the metal me~h, which makes the sea~ less comfor~A~le in case o$ prolonged use, whilst the ability of the known elasti~ upholstery et ~o ~i~hstand the impact o$
knives in case of vandal action is not completely sati~f~or~.
An elastic ~pholstery se~ known from Dutch paten~
application No. 80002~7 include~ a re~atively pl~a~ic, flexible a~d thick upholstery material, which is armoured with a ~e~al me~h ~o as to be able to wi~hstand ~he impact o ~nives in case of vandal ac~ion. Said pla~tic, ~lexible and thi~k upholstery ma~erial is made of polyvi~yl ~hloride, whilat said mesh const ~s of a layer of met~l spiral spring~ of ~he type used in ~ox-~pxing mattresses. A
draw~ack of ~his known elastic uphol~tery set is that in practice it has pro~ed to ~e insufficiently able to w~th~tand the i~pact of k~ives in ca~e of vandal a~tion, since the plas~i~, flexible ~nd ~hick upholQtery material can ~ill be dama~ed with a knife, ~4r example in places ~oc~ted between part~ o~ the ~e~ spiral ~pri~s. A
3S further dr~wba~k of thiR k~own elastic uphol~tery set is that it is not able to re~ist fire in c~se of vandal ~ction. Although ~he polyvinyl ~hloride layers of the ` , 2160061 -plasti~, flexible and thick uphols~exy ma~erial can ~ made fire ~e~istan~ by an additio~al ~reatment, such a treatment appears to be costly, whilst in ~ddition to th~ does not appear to be entirely ~ffectiv~ in prac~i~e~
The object of the inventio~ is to provide a strong and comfor~a~le, elas~ic uph.ol~tery set, which is able to withst~nd ~he impact of knives ~s well ~ fire, for example in case of vandal a~ion, and whi~h can be ~anufactured O ~ne~pensively, whereby adja~ent parts/layers of ~he ~lastic upholstery ~et are ~ttached together in an efficient ~nner, and whe~eb~ ~n en~iron~ent-frlendly ~ecycling or rep~ir/repl~cement of these parts/laye~s can efficiently be a~hieved.
To this end a~ elastic uphol~tery se~ of ~he kind men~ioned in the introdu~tion is ac~ording to the invention ~harac~eriz~d in th~t at least two adjacent parts/l~ye~ of the ela3ti~ upholstery set are glued together by ~ean~ of a ~o ~hermopla~tic glue which looses adhesive power at ~
temperature lying between 80¢ and 1~0¢, par~i~ularly be~ween 85C ~nd 110C, preferabl~ 100C. Thus a very strong and ~omfor~able elas~i~ uphol~ery se~ is p~ovided, which not only is able to withstand the impact of for 2S exa~ple knives (~ecause of it~ p~es~u~e-dist~i~uting proper~ies) a~ well as fi~e, ~ut which also fo~ms ~ compact ~nd st~ong unit, sin~e adjacent parts/layers of the elast~c upholstery set are "fixedly" i~te~connected. A significan~
advantage o~ the Illoosenin~ empera~ure is that the ~la~ti~ upholstery set will readily delaminate up~n being hea~ed to this temperature, 80 th~t p~rt~ yera formin~
part of the elasti~ uphol~texy se~ can be separated fxom ea~h o~her. This makes it possihle to separa~e ~he re~y~lable parts/layer~ of the ela~tic uphol~tery ~et from the nonrecyclable parts/layer~, whi~h is an environme~-friendly aspec~. A fuxther ad~a~ta~e is that a par~Jlayer forming part of ~he upholstery se~ ~ccording to the .
invention ~an tpar~ially3 be cleaned, repaired or even rep~aced independently from the other par~s/layer~ ~hereof, withou~ the need of repla~ement of ~he complete uphol~tery ~et. I~ will be evident tha~ the top (velours) layer of the S upholstery ~et need~ regul~r cleaning and ~epair.
In embodiment of an uphols~exy ~et according to the inven~ion, ~he glue has an adhesive po~er lying be~ween 2 and ~ N/mm, partiçularly betwee~ 3 and 5 N/mm, prefera~ly 4 N/m~, taken between adjacent parts/la~ers of the upholste~y ~et.
pref~rred to u~e a ~lue which h~s ~ 11 (i.e.
"~emory'~) of e~asticity, tha~ is, a glue which will ~eturn to its initial position a~ter havin~ been loaded by a user of the elasti~ upholstery se~, or after havin~ been (pointj loaded by ~ knife in case of vandal action. Thi~ re~ults in a very comfortable el~s~ic upholstery se~, whereby adjac~nt p~rts~layexs of s~id elastic upholstery set ~re prevented 2~ from moving with re~pect to each other, The ~lue i8 pre~e~ably o~ the so-called ho~-melt type ~i.e.
the ~lue is appli~d as a liquid, thereby ideally pentr~ting into the parts/layer~ of ~he upholstery set, ~hus e~u~ing 2S e~el~ent ad~e~ive properties) and based on polyamide or polyur~thane. In anothe~ embodi~ent said glue is pre~erable a two ~omponent glue based o~ poly~hloroprene. A glue o~
this type has appeared to produce very ~ood re~ult~ in practiee. Such a ~lue in a prefe~red embodi~ent exhibi~s the ~ollowing proper~ies as regards its ~wo ~omponent~
and B:
A
Pase polychloropre~e polyisocyanate 3S Colour ~eige da~k brown ~isçosity at 25~C approx ~50 mPa.s approx. 5 mP~.
Density approx. ~40 kg/m3 ~ppro~. ~0 kg~m~
S~lid matter conte~t approx. 13~ approx. 30 ~_ 5 Fl~h poin~ below 0~ below 0C
Solvents ~ mlxture o:E aliphates esters and esters Another embodiment of an elastic upholstery set according to the invention is characterized in that ~he pressuxe-distribu~in~ part/th~ pressure-di~ri~uting layer and/or the fle~ible layer are made of syn~hetic fi~res, preferably aramid fibres. In practice aramid fibres, whi~h are for example marketed under the brand names T~a~o~ and Kevlar, appear to be ~ery well able to withst~nd the impact of kni~es (because of their pressure-di~tributing properties) and fire in c~se o~ va~dal action.
The in~entio~ furthermo~ relates to a chair or a seat provided wi~h an elastic uphols~ery ~et according ~o the i~ven~ion.
The i~vention will be explained in more detail below with ~0 reference to ~he ~igure ~hown in the accompanying drawing, which is a perspective view of ~n elastic uphol~ery set açcoxding to the inve~ion.
The Fisure ~hows a "stab and flame-resistan~" elasti~
uphol~tery set a~cording to the inventio~, comprising an u~holstery material (l) of velours of the so-called Delcar-SNCF type, of a re~ilient armouxing part (2) in the form of a met~1 mesh ar~ouring, which is positioned ke~ween two layexs (3,4) of aramid f i~res . The layers (3,4~ n~t o~ly 3~ function to make t~e unit able to wi~hst~d ~or exam~le fire and the impact of knives, ~ut they also function as pres~ure-distribu~ing l~yers, which makes ~he ~t very comfort~ble, e~en i~ case of prolonged use. A foam padding (5~ or preferably an aluminium frame construc~ion (5~
3~ comprisin~ zi~zag Bprin~s pro~ides the elas~ic upholstery set with an~ additional comfort that i~ required.
., 2l 6oo6l -The wei~h~ of the layer (3) of aramid fi~res preferably ranges from 240 - ~80 g/m2, more preferably 260 g/m2. The weight of the layer (4) of aramid fibres pxeferably ranges fro~ 1~0 - 180 g/m2, more preferably 170 g/m~. In a preferred em~odiment ~he metal mesh armouring (2~ has a wire ~hicknesR ran~ing from 0,5 - 3 mm, prefer~bly 1 ~
(with interspaces having a diameter of S ~m~, whilst the ~esh ~rmouring (2) is prefera~ly a~le to withsta~d a point load of 3 - 5 k~, more preferably 4 kg. The velours upholstery material (1) fina~ly has a~ adhesive powe~ of mo~e than ~ N/mm, preferably 4 N/mm with ~e~pect to the laye~ (3) of aramid fibre~.
~djacent laye~s (1, 2, 3, 4, 5) of the elasti~ uphols~ery set are ~lued together ~y mean~ o~ a thermopla~ic glue (6) h~ving recall of elasticity. The ~lue (~ will return ~o its in~tial (unloaded) condi~ion after having been loaded by a u~er of the elastic upholstery ~et, or af ter h~ving been (poin~ loaded by a kni~e in ~ase of vandal action.
The ~lue (6) looses its adhe~iv~ power a~ temper~ture lying between ~O~C and 1~0C (preferably at 100C), so that ~he uphol~tery ~et according to the inve~tion wlll readily del~minate upon being hea~ed to ~hi~ temperature. This has the advanta~e ~h~ part~ of the ~phols~ery set (the velours mate~ial (1) and the other layers ~2,3,4,5)) can be separa~ed f~om each o~her, and s~bsequently ~an be recycled indep~ndently o~ ea~h othe~. A f~rther adv~tage is that the above-mentioned separation of p~rts of the upholstexy se~ m~kes it possible to ~partially) repair or ~eplace a spe~ific part thereof, without the need o~ re~lacement of the complete upholster~ s~t. For ex~mple, by a suita~le heati~g ~o the ~emperatu~e mentioned earlier, the layer of upholstery materi~l ~1) can be separate~ rom the rest of the uphol~ery ~et, ~fter which (partial~ cle~ning, rep~ir or even replaceme~t of the material (1~ ~an t~ke pl~ce.
After having been cleaned or rep~ired, for example, the material (1) can then be glued in plac~ to the res~ of the upholstery set, so that a "~ewll co~ple~e uphol~tery set at low costs is achieved ready for ~e. The ahove-men~ioned te~parature ~ange has been found after extensive S experi~e~ts, in view of the differe~t behaviour of physical and che~ical properties of part~ of the uphol~tery ~et when heated.
knives in case of vandal action is not completely sati~f~or~.
An elastic ~pholstery se~ known from Dutch paten~
application No. 80002~7 include~ a re~atively pl~a~ic, flexible a~d thick upholstery material, which is armoured with a ~e~al me~h ~o as to be able to wi~hstand ~he impact o ~nives in case of vandal ac~ion. Said pla~tic, ~lexible and thi~k upholstery ma~erial is made of polyvi~yl ~hloride, whilat said mesh const ~s of a layer of met~l spiral spring~ of ~he type used in ~ox-~pxing mattresses. A
draw~ack of ~his known elastic uphol~tery set is that in practice it has pro~ed to ~e insufficiently able to w~th~tand the i~pact of k~ives in ca~e of vandal a~tion, since the plas~i~, flexible ~nd ~hick upholQtery material can ~ill be dama~ed with a knife, ~4r example in places ~oc~ted between part~ o~ the ~e~ spiral ~pri~s. A
3S further dr~wba~k of thiR k~own elastic uphol~tery set is that it is not able to re~ist fire in c~se of vandal ~ction. Although ~he polyvinyl ~hloride layers of the ` , 2160061 -plasti~, flexible and thick uphols~exy ma~erial can ~ made fire ~e~istan~ by an additio~al ~reatment, such a treatment appears to be costly, whilst in ~ddition to th~ does not appear to be entirely ~ffectiv~ in prac~i~e~
The object of the inventio~ is to provide a strong and comfor~a~le, elas~ic uph.ol~tery set, which is able to withst~nd ~he impact of knives ~s well ~ fire, for example in case of vandal a~ion, and whi~h can be ~anufactured O ~ne~pensively, whereby adja~ent parts/layers of ~he ~lastic upholstery ~et are ~ttached together in an efficient ~nner, and whe~eb~ ~n en~iron~ent-frlendly ~ecycling or rep~ir/repl~cement of these parts/laye~s can efficiently be a~hieved.
To this end a~ elastic uphol~tery se~ of ~he kind men~ioned in the introdu~tion is ac~ording to the invention ~harac~eriz~d in th~t at least two adjacent parts/l~ye~ of the ela3ti~ upholstery set are glued together by ~ean~ of a ~o ~hermopla~tic glue which looses adhesive power at ~
temperature lying between 80¢ and 1~0¢, par~i~ularly be~ween 85C ~nd 110C, preferabl~ 100C. Thus a very strong and ~omfor~able elas~i~ uphol~ery se~ is p~ovided, which not only is able to withstand the impact of for 2S exa~ple knives (~ecause of it~ p~es~u~e-dist~i~uting proper~ies) a~ well as fi~e, ~ut which also fo~ms ~ compact ~nd st~ong unit, sin~e adjacent parts/layers of the elast~c upholstery set are "fixedly" i~te~connected. A significan~
advantage o~ the Illoosenin~ empera~ure is that the ~la~ti~ upholstery set will readily delaminate up~n being hea~ed to this temperature, 80 th~t p~rt~ yera formin~
part of the elasti~ uphol~texy se~ can be separated fxom ea~h o~her. This makes it possihle to separa~e ~he re~y~lable parts/layer~ of the ela~tic uphol~tery ~et from the nonrecyclable parts/layer~, whi~h is an environme~-friendly aspec~. A fuxther ad~a~ta~e is that a par~Jlayer forming part of ~he upholstery se~ ~ccording to the .
invention ~an tpar~ially3 be cleaned, repaired or even rep~aced independently from the other par~s/layer~ ~hereof, withou~ the need of repla~ement of ~he complete uphol~tery ~et. I~ will be evident tha~ the top (velours) layer of the S upholstery ~et need~ regul~r cleaning and ~epair.
In embodiment of an uphols~exy ~et according to the inven~ion, ~he glue has an adhesive po~er lying be~ween 2 and ~ N/mm, partiçularly betwee~ 3 and 5 N/mm, prefera~ly 4 N/m~, taken between adjacent parts/la~ers of the upholste~y ~et.
pref~rred to u~e a ~lue which h~s ~ 11 (i.e.
"~emory'~) of e~asticity, tha~ is, a glue which will ~eturn to its initial position a~ter havin~ been loaded by a user of the elasti~ upholstery se~, or after havin~ been (pointj loaded by ~ knife in case of vandal action. Thi~ re~ults in a very comfortable el~s~ic upholstery se~, whereby adjac~nt p~rts~layexs of s~id elastic upholstery set ~re prevented 2~ from moving with re~pect to each other, The ~lue i8 pre~e~ably o~ the so-called ho~-melt type ~i.e.
the ~lue is appli~d as a liquid, thereby ideally pentr~ting into the parts/layer~ of ~he upholstery set, ~hus e~u~ing 2S e~el~ent ad~e~ive properties) and based on polyamide or polyur~thane. In anothe~ embodi~ent said glue is pre~erable a two ~omponent glue based o~ poly~hloroprene. A glue o~
this type has appeared to produce very ~ood re~ult~ in practiee. Such a ~lue in a prefe~red embodi~ent exhibi~s the ~ollowing proper~ies as regards its ~wo ~omponent~
and B:
A
Pase polychloropre~e polyisocyanate 3S Colour ~eige da~k brown ~isçosity at 25~C approx ~50 mPa.s approx. 5 mP~.
Density approx. ~40 kg/m3 ~ppro~. ~0 kg~m~
S~lid matter conte~t approx. 13~ approx. 30 ~_ 5 Fl~h poin~ below 0~ below 0C
Solvents ~ mlxture o:E aliphates esters and esters Another embodiment of an elastic upholstery set according to the invention is characterized in that ~he pressuxe-distribu~in~ part/th~ pressure-di~ri~uting layer and/or the fle~ible layer are made of syn~hetic fi~res, preferably aramid fibres. In practice aramid fibres, whi~h are for example marketed under the brand names T~a~o~ and Kevlar, appear to be ~ery well able to withst~nd the impact of kni~es (because of their pressure-di~tributing properties) and fire in c~se o~ va~dal action.
The in~entio~ furthermo~ relates to a chair or a seat provided wi~h an elastic uphols~ery ~et according ~o the i~ven~ion.
The i~vention will be explained in more detail below with ~0 reference to ~he ~igure ~hown in the accompanying drawing, which is a perspective view of ~n elastic uphol~ery set açcoxding to the inve~ion.
The Fisure ~hows a "stab and flame-resistan~" elasti~
uphol~tery set a~cording to the inventio~, comprising an u~holstery material (l) of velours of the so-called Delcar-SNCF type, of a re~ilient armouxing part (2) in the form of a met~1 mesh ar~ouring, which is positioned ke~ween two layexs (3,4) of aramid f i~res . The layers (3,4~ n~t o~ly 3~ function to make t~e unit able to wi~hst~d ~or exam~le fire and the impact of knives, ~ut they also function as pres~ure-distribu~ing l~yers, which makes ~he ~t very comfort~ble, e~en i~ case of prolonged use. A foam padding (5~ or preferably an aluminium frame construc~ion (5~
3~ comprisin~ zi~zag Bprin~s pro~ides the elas~ic upholstery set with an~ additional comfort that i~ required.
., 2l 6oo6l -The wei~h~ of the layer (3) of aramid fi~res preferably ranges from 240 - ~80 g/m2, more preferably 260 g/m2. The weight of the layer (4) of aramid fibres pxeferably ranges fro~ 1~0 - 180 g/m2, more preferably 170 g/m~. In a preferred em~odiment ~he metal mesh armouring (2~ has a wire ~hicknesR ran~ing from 0,5 - 3 mm, prefer~bly 1 ~
(with interspaces having a diameter of S ~m~, whilst the ~esh ~rmouring (2) is prefera~ly a~le to withsta~d a point load of 3 - 5 k~, more preferably 4 kg. The velours upholstery material (1) fina~ly has a~ adhesive powe~ of mo~e than ~ N/mm, preferably 4 N/mm with ~e~pect to the laye~ (3) of aramid fibre~.
~djacent laye~s (1, 2, 3, 4, 5) of the elasti~ uphols~ery set are ~lued together ~y mean~ o~ a thermopla~ic glue (6) h~ving recall of elasticity. The ~lue (~ will return ~o its in~tial (unloaded) condi~ion after having been loaded by a u~er of the elastic upholstery ~et, or af ter h~ving been (poin~ loaded by a kni~e in ~ase of vandal action.
The ~lue (6) looses its adhe~iv~ power a~ temper~ture lying between ~O~C and 1~0C (preferably at 100C), so that ~he uphol~tery ~et according to the inve~tion wlll readily del~minate upon being hea~ed to ~hi~ temperature. This has the advanta~e ~h~ part~ of the ~phols~ery set (the velours mate~ial (1) and the other layers ~2,3,4,5)) can be separa~ed f~om each o~her, and s~bsequently ~an be recycled indep~ndently o~ ea~h othe~. A f~rther adv~tage is that the above-mentioned separation of p~rts of the upholstexy se~ m~kes it possible to ~partially) repair or ~eplace a spe~ific part thereof, without the need o~ re~lacement of the complete upholster~ s~t. For ex~mple, by a suita~le heati~g ~o the ~emperatu~e mentioned earlier, the layer of upholstery materi~l ~1) can be separate~ rom the rest of the uphol~ery ~et, ~fter which (partial~ cle~ning, rep~ir or even replaceme~t of the material (1~ ~an t~ke pl~ce.
After having been cleaned or rep~ired, for example, the material (1) can then be glued in plac~ to the res~ of the upholstery set, so that a "~ewll co~ple~e uphol~tery set at low costs is achieved ready for ~e. The ahove-men~ioned te~parature ~ange has been found after extensive S experi~e~ts, in view of the differe~t behaviour of physical and che~ical properties of part~ of the uphol~tery ~et when heated.
Claims (8)
1. An elastic upholstery set, more in particular - but not exclusively - for the upholstery of chairs, seats and the like as preferably used in public buildings and in vehicles for public transport, for example, whereby the elastic upholstery set is provided with a resilient armouring part and a pressure-distributing part, whereby - said joint parts are at least substantially comprised of an armoured pressure-distributing padding, on which a flexible layer is provided, or whereby - said armouring part is at least substantially comprised of a resilient armouring layer, whilst the pressure-distributing part is at least substantially comprised of a pressure-distributing layer provided thereon, characterized in that at least two adjacent parts/layers of said elastic upholstery set are glued together by means of a thermoplastic glue which looses adhesive power at a temperature lying between 80°C and 120°C, particularly between 85°C and 110°C, preferably 100°C.
2. An elastic upholstery set according to claim 1, characterized in that the glue has an adhesive power lying between 2 and 6 N/mm, particularly between 3 and 5 N/mm, preferably 4 N/mm.
3. An elastic upholstery set according to claim 1 or 2, characterized in that the pressure-distributing part/the pressure-distributing layer and/or the flexible layer are made of synthetic fibres.
preferably aramid fibres.
preferably aramid fibres.
4. An elastic upholstery set according to claim 1, 2 or 3, characterized in that said glue has recall of elasticity.
5. An elastic upholstery set according to any one of the preceeding claims 1 through 4, characterized in that said glue is based on polyamide or polyurethane.
6. An elastic upholstery set according to any one of the preceding claims 1 through 4, characterized in that said glue is a two component glue based on polychloroprene.
7. An elastic upholstery set according to claim 6, characterized in that said glue exhibits the following properties as regards its two components A and B:
A B
Base polychloroprene polyisocyanate Colour beige dark brown Viscosity at 25°C approx. 350 mPa.s approx. 5mPa.s Density approx. 840 kg/m3 approx. 980 kg/m3 Solid matter content approx. 19% approx. 30%
Flash point below 0°C below 0°C
Solvents a mixture of esters aliphates and esters
A B
Base polychloroprene polyisocyanate Colour beige dark brown Viscosity at 25°C approx. 350 mPa.s approx. 5mPa.s Density approx. 840 kg/m3 approx. 980 kg/m3 Solid matter content approx. 19% approx. 30%
Flash point below 0°C below 0°C
Solvents a mixture of esters aliphates and esters
8. A chair or a seat provided with an elastic upholstery set according to any one of the preceding claims 1 through 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLNL9401653 | 1994-10-07 | ||
| NL9401653A NL9401653A (en) | 1994-10-07 | 1994-10-07 | Chair set. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2160061A1 true CA2160061A1 (en) | 1996-04-08 |
Family
ID=19864746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2160061 Abandoned CA2160061A1 (en) | 1994-10-07 | 1995-10-06 | Chair upholstery set |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0705550A1 (en) |
| CA (1) | CA2160061A1 (en) |
| NL (1) | NL9401653A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2573969A1 (en) * | 1984-12-03 | 1986-06-06 | Quinette Internal Sa | Covering sheet intended in particular to cover seats |
| FR2592334B1 (en) * | 1985-12-27 | 1987-12-18 | Sable | COMPOSITE SHEET FOR SEAT COVERING AND MANUFACTURING METHOD THEREOF |
| ATE129615T1 (en) * | 1991-05-06 | 1995-11-15 | Greiner & Soehne C A | SEAT, IN PARTICULAR SEAT CUSHION FOR PUBLIC TRANSPORT. |
-
1994
- 1994-10-07 NL NL9401653A patent/NL9401653A/en not_active Application Discontinuation
-
1995
- 1995-10-06 CA CA 2160061 patent/CA2160061A1/en not_active Abandoned
- 1995-10-09 EP EP95202715A patent/EP0705550A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0705550A1 (en) | 1996-04-10 |
| NL9401653A (en) | 1996-05-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |