CA1194621A - Process for the production of elastic manufactured articles for making mattresses and other items, and mattresses made using such process - Google Patents
Process for the production of elastic manufactured articles for making mattresses and other items, and mattresses made using such processInfo
- Publication number
- CA1194621A CA1194621A CA000423651A CA423651A CA1194621A CA 1194621 A CA1194621 A CA 1194621A CA 000423651 A CA000423651 A CA 000423651A CA 423651 A CA423651 A CA 423651A CA 1194621 A CA1194621 A CA 1194621A
- Authority
- CA
- Canada
- Prior art keywords
- elastic
- elements
- article
- articles
- strip elements
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/063—Spring inlays wrapped or otherwise protected
- A47C27/064—Pocketed springs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/062—Spring inlays of different resiliencies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G9/00—Placing upholstery springs in pockets; Fitting springs in upholstery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Springs (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Nonwoven Fabrics (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A mattress or similar article includes springs housed in ribbon-shaped members. which form a series of pockets for receiving the springs and are closed at each end to secure the springs in the pockets. Several ribbon-shaped members are placed side-by-side and two ribbon-shaped flexible layers are connected to opposite sides of the members and glued. to said members to join them together. Single ribbon-shaped members or groups of adjacent ribbon shaped members differ from contiguous members or groups of contiguous members in terms of their elasticity (in addition to the distance separating contiguous members) to impart to the manufactured article differing characteristics in a direction at right angles to that of the members side-by-side.
A mattress or similar article includes springs housed in ribbon-shaped members. which form a series of pockets for receiving the springs and are closed at each end to secure the springs in the pockets. Several ribbon-shaped members are placed side-by-side and two ribbon-shaped flexible layers are connected to opposite sides of the members and glued. to said members to join them together. Single ribbon-shaped members or groups of adjacent ribbon shaped members differ from contiguous members or groups of contiguous members in terms of their elasticity (in addition to the distance separating contiguous members) to impart to the manufactured article differing characteristics in a direction at right angles to that of the members side-by-side.
Description
~ 9~
BACKGROUND OF T~ INVENTION
Technical Field The present invention relates to a method producing elastic artieles and also such elastic articles which 5 are suitable for use in the manufacture of matresses or other similar upholstered articles.
Prior Art Elastic articles may be produced from a plurality of elongate strip elements each of which includes a series 10 of pockets in whlch a spring is received. ~he pockets are closed-off at their upper and lower ends.
SUMMARY OF THE INVENTION
.
The present invention provides a method of producing an elastic article from a plurality of elongate strip 15 elements each defining a series of pockets having closed upper and lower ends, and having a spring received in each said pocket, including the steps of assembling said plurality of elongate strip elements in side-by-side configuration, adhering a respective flexible layer to 20 the upper and lower ends of said assembled elements to hold them together, and dividing said assem~led elements transverse to said elongate direction to produce said elastic articles, wherein the property of elastic resilience and/or the transverse separation of ~he 25 elements is such that the property of elastic resilience 6'~
~ 2 -varies across the article transverse of said elongate d:irection with the lowest yie~ding quality towards the centre of the article.
5 The invention also provides a method of producing an elastic article from a plurality of part articles, each part article being produced from a plurality of elongate strip elements each defining a series of pockets having closed upper and lower ends, and having a spring received 10 in each said pocket, including the steps of assembling said plurality of elongate strip elements in side-by~side configuration, adhering a respective flexible layer to the upper and lower ends of said assembled elements to hold them together, and dividing said assembled elements 15 transverse to said elonga~e direction to produce substan-tially rectangular elastic part articles, and assembling a plurality o said part articles in coplanar arrangement such that the adjacent part articles in at least one direction have different properties of elastic 20 resilience.
l~e invention also includes a mattress formed from an elastic article produced by a method as defined above.
BRIEF DESCRIPTION OF T~E DRAWINGS
Fig. 1 sho~s a constructi,on o~ an elasti,c article with rows of elongate strip elements, which rows are parallel and have'elast~city cha,racteristics which vary in a gradual manner;
Fig. ~ shows an eIast~c article made up o several part articles;
Figs~.. 3 and 4 sho~ a t~o-layer construction of an elastic article'made up of part articles;
FIgs. 5 and 6 sho~ an altern~t~:ve two~layer construction;
Fig. 7 shows two diagrams o c~aracteristics of the components, of the~article of ~igs. 5 and 6;
Fig. 8 shows two diagrams ~imilar to those of Fig.
7, but relating to the construction of Figs. 3 and 4;
Fig 9 sh.ows a piece o~ an elongate strip element as usPd as the elastic articles of Figures 1 to 5;
Figs .lO, ll and 12 show i.n t~o pe~spective and a plan vie~ ~ith. . cut-away portions, th.e structure of an elastIc article; and FIg. 13 s~ows a perspectiye vi.ew to illustrate -the manufacture of elastic articles in a continuous manner.
DE~CRIPTION'OF PREFERRED EMBODIMENTS
Re~err~ng initially to Figs. ~ to 12, ~ continuous Plong~
ate strip eIement is used a a s~t~ng ~ticle to prod-uce the mattxes~ ~txuc~ures. The s~p lement încludes amainly wQven p~t~on which de~ne~ p~ckets 1 J ~nside which helical springs 3 are'~nse~ed. The ~pr~ngs are then held in the pockets 1 ~y clQs~ng ~ ~ se~ng Q~
otherwise - the longitud~nal ~Iap~ 5 ~ the poekets until something in th~ manner of ~n upper fle~le' r~ is constituted. Thus the p~ckets a~e cl~ea at ~t~ uppe~
and lower ends.
These elements ~re'already ~n use ~or t~e ~ormation of pillow or like structures, w~t~ h~nd stitching or Qther equivalent jQining, where~y a sect~n q~ ~uch a continu-ous strip element ~s arranged ~n zig-z~g f~s~i~n to constitute the surface of the p~llo~, The ~ody of the actual pillo~ ls farmed from adjacent reYersed sections of the ele~ent.
To enable automation, an eIastic structuxe is made up of a plurality of piece~ of the ab~Ye~mentioned element, den~ted ~y 7 in Figs . 10 t~ 12 ~ ~?la,ced s~de-by-~ide and j oined at the top - ~,nd b~ttc~ t~ cont~nuous flexible layers 9 and lO, which are glue~ to the upper and lower ends of the pockets l,to provide a c~ntinuous connection.
Layers 9 and lO ~ay be o~ any ~teri,a,l ~nd design, to afford flexibi,lity and ~es.~$;t~nce, ~n particular these layers 9 and 10 may be m~de Q~.a~i.c~ ~f va~ying degrees of thi,ckness e.g.~ nett~ng, knitted fabrics, non-woven fahr~cs (,i.e. of l~yexs o~ res ~hich are not arranged in particular o~de~ o~ s,pun, ~hich are made to adhere togeth.er by felting ~th~ required, dressing and sizing), o~ of other suit~le matexi~ls, which may have varying consistency and elasti,city.
To obtain springy structures or el,a,sti,c articles ~r use in pr~ducing mattresses, a. continuous method is adopted, In this method a desired num,~.e~ of continuous elongate strip elements o~ the type ~h~n in Fig. ~
are fed ~o that they lie'side~y-s~de in a, plane in which the p~ckets 1 and thexe~o~e the'spxings 3 of the various elements are aligned pe~pendicular t~ the plane. ~s is shown in particular by re~erence 17 in Fig. 13, these continuous ele~ents 1~ are guided in this side-by-side confi,guration ~ntil they are placed in between two strips of the ~atexial intended to form layers 9 and lO, wh.ich s-tri,ps ~e denoted by ,:1~ and 20 and a~re sho~n as originating fr~ ~eels Al9 and ~20.
The strips of material 19 and 20 ~e:pxoYided with adhesive on the ~urface to be brough.t ~longside the elements 17 in such a manner that, when the two strips of materi~ and 20 are placed adja.cent the opposite ends ~f the assem~led elong~te ~tXip element~ 17 they adhere ~nd become joined to s,a,,i~d ele~ent~ 17, ~o~ming a con~inuous ~ticle. Ela,st~c a~ticles, ~y ~e prod-uced from this continuqus a,~ti,cle'~y ~eans o~ successiYe transverse cuts.
Referring ta Fig. 1, a manu$actured eI~$tic ~rticl.e 101 for use in producing a m~ttre~s,~ i.$ made up of parallel rows of elongate strip el'e~ents w~th inco~po~-ated springs which extend ovex the ent~re length or at any rate for the entirety ~f one of the two princ-ipal dimensions of th.e manu~actu~ed ~xticle.' .The springs 15 in each strIp element po$se$:s the same'characteristics of elasticity, dimens~ning ~,nd sep~r~,t~on. The stxip elements of the various ro~s are denqted ~y the letters A, B, C,..,.H ~ith an arrangement symmetric~l about the centre line in the direction Qf th.e x~s. The t~o 20 elements A are the tWQ Quter one$ and the element H. is the central ~ne. The oute~m~st elements starting at lea~t from B, axe more yielding than the inner ones, a,nd the most central one$ may haye the same characteristi,cs for a strip c~prising a predetermined 25 nu~ber o~ rows, The elements ~aking up the central rows have cha,r~cteristics of greater res.istance to compression and deformation rela.t~i.ve to the outer Qnes.
-- 7-- .
A mattress mus:t normally be more resistant to compressi,on in th.e central area than ~n the periphe~al area, consi,dered in plan, A ~ari,a,t~,on may fie produc~d also by means of a Yariation ~n the t~ans,~erse sepa~ati~n 5 bet~een adjacent ro~s. The variat~n Qf ch~acteristics may be continuous for thR ~r~Qus ele~ents ~, B, C, ...H., ....C, B, A, or such ~ variati,Qn may he d~scontinous, by providing groups of rows o~ st~ip elements s~.de-by~side~
the various ele~ents of which each:ha~e the same eIastic~
10 ity characterisics, and the groups ~,n a pxogxessively outward movement ~rom the centre h~Y.i,ng characteristics of greater yielding.
Fig. 2 shQ~s an eL~stic article ~n ~h~ch,t~,e concepts 15 set out above may he implemented, ~ut ~th the additi~n of variatian of the eIastic ch,a,rActexIst~cs ~n a long-itudinal direction in addition to a tra,ns~erse direc~ion.
In Fig. 2 the elongate strip eleT~Ients with their incorporated springs e~tend in the direction indic~ted,by th.e double
BACKGROUND OF T~ INVENTION
Technical Field The present invention relates to a method producing elastic artieles and also such elastic articles which 5 are suitable for use in the manufacture of matresses or other similar upholstered articles.
Prior Art Elastic articles may be produced from a plurality of elongate strip elements each of which includes a series 10 of pockets in whlch a spring is received. ~he pockets are closed-off at their upper and lower ends.
SUMMARY OF THE INVENTION
.
The present invention provides a method of producing an elastic article from a plurality of elongate strip 15 elements each defining a series of pockets having closed upper and lower ends, and having a spring received in each said pocket, including the steps of assembling said plurality of elongate strip elements in side-by-side configuration, adhering a respective flexible layer to 20 the upper and lower ends of said assembled elements to hold them together, and dividing said assem~led elements transverse to said elongate direction to produce said elastic articles, wherein the property of elastic resilience and/or the transverse separation of ~he 25 elements is such that the property of elastic resilience 6'~
~ 2 -varies across the article transverse of said elongate d:irection with the lowest yie~ding quality towards the centre of the article.
5 The invention also provides a method of producing an elastic article from a plurality of part articles, each part article being produced from a plurality of elongate strip elements each defining a series of pockets having closed upper and lower ends, and having a spring received 10 in each said pocket, including the steps of assembling said plurality of elongate strip elements in side-by~side configuration, adhering a respective flexible layer to the upper and lower ends of said assembled elements to hold them together, and dividing said assembled elements 15 transverse to said elonga~e direction to produce substan-tially rectangular elastic part articles, and assembling a plurality o said part articles in coplanar arrangement such that the adjacent part articles in at least one direction have different properties of elastic 20 resilience.
l~e invention also includes a mattress formed from an elastic article produced by a method as defined above.
BRIEF DESCRIPTION OF T~E DRAWINGS
Fig. 1 sho~s a constructi,on o~ an elasti,c article with rows of elongate strip elements, which rows are parallel and have'elast~city cha,racteristics which vary in a gradual manner;
Fig. ~ shows an eIast~c article made up o several part articles;
Figs~.. 3 and 4 sho~ a t~o-layer construction of an elastic article'made up of part articles;
FIgs. 5 and 6 sho~ an altern~t~:ve two~layer construction;
Fig. 7 shows two diagrams o c~aracteristics of the components, of the~article of ~igs. 5 and 6;
Fig. 8 shows two diagrams ~imilar to those of Fig.
7, but relating to the construction of Figs. 3 and 4;
Fig 9 sh.ows a piece o~ an elongate strip element as usPd as the elastic articles of Figures 1 to 5;
Figs .lO, ll and 12 show i.n t~o pe~spective and a plan vie~ ~ith. . cut-away portions, th.e structure of an elastIc article; and FIg. 13 s~ows a perspectiye vi.ew to illustrate -the manufacture of elastic articles in a continuous manner.
DE~CRIPTION'OF PREFERRED EMBODIMENTS
Re~err~ng initially to Figs. ~ to 12, ~ continuous Plong~
ate strip eIement is used a a s~t~ng ~ticle to prod-uce the mattxes~ ~txuc~ures. The s~p lement încludes amainly wQven p~t~on which de~ne~ p~ckets 1 J ~nside which helical springs 3 are'~nse~ed. The ~pr~ngs are then held in the pockets 1 ~y clQs~ng ~ ~ se~ng Q~
otherwise - the longitud~nal ~Iap~ 5 ~ the poekets until something in th~ manner of ~n upper fle~le' r~ is constituted. Thus the p~ckets a~e cl~ea at ~t~ uppe~
and lower ends.
These elements ~re'already ~n use ~or t~e ~ormation of pillow or like structures, w~t~ h~nd stitching or Qther equivalent jQining, where~y a sect~n q~ ~uch a continu-ous strip element ~s arranged ~n zig-z~g f~s~i~n to constitute the surface of the p~llo~, The ~ody of the actual pillo~ ls farmed from adjacent reYersed sections of the ele~ent.
To enable automation, an eIastic structuxe is made up of a plurality of piece~ of the ab~Ye~mentioned element, den~ted ~y 7 in Figs . 10 t~ 12 ~ ~?la,ced s~de-by-~ide and j oined at the top - ~,nd b~ttc~ t~ cont~nuous flexible layers 9 and lO, which are glue~ to the upper and lower ends of the pockets l,to provide a c~ntinuous connection.
Layers 9 and lO ~ay be o~ any ~teri,a,l ~nd design, to afford flexibi,lity and ~es.~$;t~nce, ~n particular these layers 9 and 10 may be m~de Q~.a~i.c~ ~f va~ying degrees of thi,ckness e.g.~ nett~ng, knitted fabrics, non-woven fahr~cs (,i.e. of l~yexs o~ res ~hich are not arranged in particular o~de~ o~ s,pun, ~hich are made to adhere togeth.er by felting ~th~ required, dressing and sizing), o~ of other suit~le matexi~ls, which may have varying consistency and elasti,city.
To obtain springy structures or el,a,sti,c articles ~r use in pr~ducing mattresses, a. continuous method is adopted, In this method a desired num,~.e~ of continuous elongate strip elements o~ the type ~h~n in Fig. ~
are fed ~o that they lie'side~y-s~de in a, plane in which the p~ckets 1 and thexe~o~e the'spxings 3 of the various elements are aligned pe~pendicular t~ the plane. ~s is shown in particular by re~erence 17 in Fig. 13, these continuous ele~ents 1~ are guided in this side-by-side confi,guration ~ntil they are placed in between two strips of the ~atexial intended to form layers 9 and lO, wh.ich s-tri,ps ~e denoted by ,:1~ and 20 and a~re sho~n as originating fr~ ~eels Al9 and ~20.
The strips of material 19 and 20 ~e:pxoYided with adhesive on the ~urface to be brough.t ~longside the elements 17 in such a manner that, when the two strips of materi~ and 20 are placed adja.cent the opposite ends ~f the assem~led elong~te ~tXip element~ 17 they adhere ~nd become joined to s,a,,i~d ele~ent~ 17, ~o~ming a con~inuous ~ticle. Ela,st~c a~ticles, ~y ~e prod-uced from this continuqus a,~ti,cle'~y ~eans o~ successiYe transverse cuts.
Referring ta Fig. 1, a manu$actured eI~$tic ~rticl.e 101 for use in producing a m~ttre~s,~ i.$ made up of parallel rows of elongate strip el'e~ents w~th inco~po~-ated springs which extend ovex the ent~re length or at any rate for the entirety ~f one of the two princ-ipal dimensions of th.e manu~actu~ed ~xticle.' .The springs 15 in each strIp element po$se$:s the same'characteristics of elasticity, dimens~ning ~,nd sep~r~,t~on. The stxip elements of the various ro~s are denqted ~y the letters A, B, C,..,.H ~ith an arrangement symmetric~l about the centre line in the direction Qf th.e x~s. The t~o 20 elements A are the tWQ Quter one$ and the element H. is the central ~ne. The oute~m~st elements starting at lea~t from B, axe more yielding than the inner ones, a,nd the most central one$ may haye the same characteristi,cs for a strip c~prising a predetermined 25 nu~ber o~ rows, The elements ~aking up the central rows have cha,r~cteristics of greater res.istance to compression and deformation rela.t~i.ve to the outer Qnes.
-- 7-- .
A mattress mus:t normally be more resistant to compressi,on in th.e central area than ~n the periphe~al area, consi,dered in plan, A ~ari,a,t~,on may fie produc~d also by means of a Yariation ~n the t~ans,~erse sepa~ati~n 5 bet~een adjacent ro~s. The variat~n Qf ch~acteristics may be continuous for thR ~r~Qus ele~ents ~, B, C, ...H., ....C, B, A, or such ~ variati,Qn may he d~scontinous, by providing groups of rows o~ st~ip elements s~.de-by~side~
the various ele~ents of which each:ha~e the same eIastic~
10 ity characterisics, and the groups ~,n a pxogxessively outward movement ~rom the centre h~Y.i,ng characteristics of greater yielding.
Fig. 2 shQ~s an eL~stic article ~n ~h~ch,t~,e concepts 15 set out above may he implemented, ~ut ~th the additi~n of variatian of the eIastic ch,a,rActexIst~cs ~n a long-itudinal direction in addition to a tra,ns~erse direc~ion.
In Fig. 2 the elongate strip eleT~Ients with their incorporated springs e~tend in the direction indic~ted,by th.e double
2~ arrow' flO2, and the a~ticle'~s ~de ~p of several part articles 103 t.o 119. The part Article lQ3 ~ay be con-structed in ~uch ~ mannex as t~ h~ye ~aximum ~esist~nce to compress,ion de~oxmation; t~o art~cles 105 ~nd 107 situ~ted alon~si.,de lQ3 in ~ t~ans~e~se di,recti~n may 25 haye a suppleness greater than th~,t o~ a~ti.cle 103; the part articles', 111, 113, and 117 a,nd llq a,t the corners may have çven greater suppleness, ~,e,'~ m~xi.mum supplness;
part ar-ti.cles 109 and 115 may have intermediate supple-ness which may co~respond, fo.r example, to that of art-icles 105 and 107.
S It is also poss.ible for part ~rticles lQ5, 103 and 107 to have the same characteristics of elastic~ty ~ lesser suppleness relatiye to that of the ~thPr ~t~cles which may have, relative to one an~ther thP s.~me ox different degreesof suppleness.
In Fig~o3 and 4 an e-lastic a~ticle c~n$truction is shown which is formed of two l~yers, e~ch ~ ~.hich ~.s made up o~ ~hree part articles. 201, 203, ~nd 205 denote ~hree part articles in which.the elqngate stXip elements may extend perpendicular or parallel to th~ adjacent edges of the side-by-side part art~cle$:. In either case the part article 203 has a ~esilient suppleness smaller than that of the part articles 201 and 205. ~. second layer of part articles is consti.tuted ~y three longit-20 udinal part articles 207~ 209 and 211, th.e adjacent edgesqf which are pe~pendicular to ~hose ~f the adjace.nt edges o~:p~t~a~ticles 201, 203, 205. Part articles 207 may ha~e a s.uppleness smaller than that of elements 209 and 211. The rows of elong~te strip elements in these part articles are parallel to their adjacent edges. Thus~
with only six elements, there is obtained an arrangemen-t which is functionally similar to that of the article i 9C~A ~ '?~1 of ~ig. 2, which is made up of nine elements.
In eve~y case the connection of the ,adjacent pa~t articles may be ach~eYed ~ith.connection la,ye~s e~tending through-5 ou~ the are~ o~ ~he ~rt~cle, o~ pa,~tly~ along adjacentareas. At the end, the adjacent p~rt axticles may be joined with ~he same connectI.on la,yexs prQvided for the adjacent str~p elements ~h~ch.constitu~e'the ~axious part articles.
Fig. 5 and 6 sh~ an arti.cle o~ mattres'$ t~pe whi.ch is made up of tWQ part articles, one'of ~h~,ch.301 has the strip elements extending in the d~xecti~n o~ the arrow f301, while the other part ~rticle'305 h~s the stxip 15 elements extending in ~he di~ection of t~e a~w f305, i.e., perpendicular t~ the'directi.4n ~f the elements of the part article 301. Each of the t~Q part ~rticles 301, 305 may he made up with elong~te ~tri:p eIements with incorporated springs w,hich.h~ye continuously or dis-20 continuously varying characteristics between the centrearea and the periphexal area~, This y~riation is obtain-able in part by v~iati4ns ~f dista.nce bet~een centre lines of the elements, In th~s ~ay there is obtained a variation Q~ characteristics ~et~een the centre Q~ the 25 article.and each.o~ th.e sides, 6Z~
Figure 7 sho~s by means of t~Q diagrams the approximate variatIon o~ rigidity in the l~ngitudinal and transverse di~ectiQn ~o~ the'arti.cle Qf ~l.gure$ 5 ~nd 6, wh.~ch vaxiation i.s seen ~o be cont~nu~us..
Fig. 8 sho~s a double diagra,~ ~h.~ch shQ~ discontinuous variations, such.as may be Qbta~,ned ~n an art~cle like that of Fig. 3. The t~o dia.g~s ~ ure 8 refer to the variation of ri.gidity ~l~n~ t~o perpendicular sections, longitudi,nal and t~a,nsye~se.' To obtain a certain periph~al stah~ ty of the mattress, it is preferable that the el'o~gate'strip ele~ents which are arranged al~ng ~he ed~es: ~f th.e article, should have springs less yielding th~n those o~ the adjacent members, as shown in the 'd~,a,g~ams ~f Figs, 7 and 8.
part ar-ti.cles 109 and 115 may have intermediate supple-ness which may co~respond, fo.r example, to that of art-icles 105 and 107.
S It is also poss.ible for part ~rticles lQ5, 103 and 107 to have the same characteristics of elastic~ty ~ lesser suppleness relatiye to that of the ~thPr ~t~cles which may have, relative to one an~ther thP s.~me ox different degreesof suppleness.
In Fig~o3 and 4 an e-lastic a~ticle c~n$truction is shown which is formed of two l~yers, e~ch ~ ~.hich ~.s made up o~ ~hree part articles. 201, 203, ~nd 205 denote ~hree part articles in which.the elqngate stXip elements may extend perpendicular or parallel to th~ adjacent edges of the side-by-side part art~cle$:. In either case the part article 203 has a ~esilient suppleness smaller than that of the part articles 201 and 205. ~. second layer of part articles is consti.tuted ~y three longit-20 udinal part articles 207~ 209 and 211, th.e adjacent edgesqf which are pe~pendicular to ~hose ~f the adjace.nt edges o~:p~t~a~ticles 201, 203, 205. Part articles 207 may ha~e a s.uppleness smaller than that of elements 209 and 211. The rows of elong~te strip elements in these part articles are parallel to their adjacent edges. Thus~
with only six elements, there is obtained an arrangemen-t which is functionally similar to that of the article i 9C~A ~ '?~1 of ~ig. 2, which is made up of nine elements.
In eve~y case the connection of the ,adjacent pa~t articles may be ach~eYed ~ith.connection la,ye~s e~tending through-5 ou~ the are~ o~ ~he ~rt~cle, o~ pa,~tly~ along adjacentareas. At the end, the adjacent p~rt axticles may be joined with ~he same connectI.on la,yexs prQvided for the adjacent str~p elements ~h~ch.constitu~e'the ~axious part articles.
Fig. 5 and 6 sh~ an arti.cle o~ mattres'$ t~pe whi.ch is made up of tWQ part articles, one'of ~h~,ch.301 has the strip elements extending in the d~xecti~n o~ the arrow f301, while the other part ~rticle'305 h~s the stxip 15 elements extending in ~he di~ection of t~e a~w f305, i.e., perpendicular t~ the'directi.4n ~f the elements of the part article 301. Each of the t~Q part ~rticles 301, 305 may he made up with elong~te ~tri:p eIements with incorporated springs w,hich.h~ye continuously or dis-20 continuously varying characteristics between the centrearea and the periphexal area~, This y~riation is obtain-able in part by v~iati4ns ~f dista.nce bet~een centre lines of the elements, In th~s ~ay there is obtained a variation Q~ characteristics ~et~een the centre Q~ the 25 article.and each.o~ th.e sides, 6Z~
Figure 7 sho~s by means of t~Q diagrams the approximate variatIon o~ rigidity in the l~ngitudinal and transverse di~ectiQn ~o~ the'arti.cle Qf ~l.gure$ 5 ~nd 6, wh.~ch vaxiation i.s seen ~o be cont~nu~us..
Fig. 8 sho~s a double diagra,~ ~h.~ch shQ~ discontinuous variations, such.as may be Qbta~,ned ~n an art~cle like that of Fig. 3. The t~o dia.g~s ~ ure 8 refer to the variation of ri.gidity ~l~n~ t~o perpendicular sections, longitudi,nal and t~a,nsye~se.' To obtain a certain periph~al stah~ ty of the mattress, it is preferable that the el'o~gate'strip ele~ents which are arranged al~ng ~he ed~es: ~f th.e article, should have springs less yielding th~n those o~ the adjacent members, as shown in the 'd~,a,g~ams ~f Figs, 7 and 8.
Claims (8)
1. A method of producing an elastic article from a plurality of elongate strip elements each defining a series of pockets having closed upper and lower ends, and having a spring received in each said pocket, including the steps of assembling said plurality of elongate strip elements in side-by-side configuration, adhering a respective flexible layer to the upper and lower ends of said assembles elements to hold them together, and dividing said assembled elements transverse to said elongate direction to produce said elastic articles, wherein the property of elastic resilience and/or the transverse separation of the elements is such that the property of elastic resilience varies across the article transverse to said elongate direction with the lowest yielding quality towards the centre of the article.
2. A method of producing an elastic article from a plurality of part articles, each part article being produced from a plurality of elongate strip elements each defining a series of pockets having closed upper and lower ends, and having a spring received in each said pocket, including the steps of assembling said plurality of elongate strip elements in side-by-side configuration, adhering a respective flexiblelayer to the upper and lower ends of said assembled elements to hold them together, and dividing said assembled elements transverse to said elongate direction to produce substantially rectangular elastic part articles, and assembling a plurality of said part articles in coplanar arrangements, such that the adjacent part articles in at least one direction have different properties of elastic resilience.
3. A method of producing an elastic article including the step of arranging two elastic articles produced by a method according to claim 2, one above the other such that the strip elements of one said elastic article extend in a direction perpendicular to that of the strip elements of the other elastic article.
4. A method according to claim 3, in which each said elastic article comprises at least three part articles, the property of elastic resilience of the central part article being such that this central part article is less deformable than the adjacent part articles.
5. A method as claimed in claim 1, wherein the elastic resilience of the strip element extending along the edges of the articles are such that these elements are less yielding than adjacent elements.
6. A method of producing an elastic article including the step of arranging two elastic articles produced by a method according to claim 1, one above the other such that the strip elements of one said elastic article extend in a direction perpendicular to that of the strip elements of the other elastic article.
7. An elastic mattress element including a plurality of elongate strip elements each defining a series of pockets having closed upper and lower ends, and having a spring received in each said pocket, said strip elements being arranged side-by-side, the side-wise spacing between adjacent strip elements and/or the properties of said springs in said adjacent strip elements being such that the properties of elastic resilience of the mattress element vary at least from side to side so that the mattress element has its lowest yielding quality towards the centre.
8. A mattress element including two mattress elements according to claim 7, arranged one above the other with the strip elements of one mattress element extending substantially perpen-dicular to those of the other said mattress element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT9361A/82 | 1982-03-17 | ||
| IT09361/82A IT1192390B (en) | 1982-03-17 | 1982-03-17 | PROCESS FOR THE PRODUCTION OF ELASTIC MANUFACTURES FOR THE FORMATION OF MATTRESSES OR OTHER, AND MATTRESSES WITH SUCH PROCEDURE REALIZED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1194621A true CA1194621A (en) | 1985-10-01 |
Family
ID=11128983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000423651A Expired CA1194621A (en) | 1982-03-17 | 1983-03-15 | Process for the production of elastic manufactured articles for making mattresses and other items, and mattresses made using such process |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0089789B1 (en) |
| AT (1) | ATE25232T1 (en) |
| CA (1) | CA1194621A (en) |
| DE (1) | DE3369500D1 (en) |
| IT (1) | IT1192390B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5669093A (en) * | 1996-07-17 | 1997-09-23 | L & P Property Management Company | Pocketed coil spring assembly |
| US5957438A (en) * | 1998-02-04 | 1999-09-28 | L&P Property Management Company | Spring retainer assembly |
| US6036181A (en) * | 1998-02-04 | 2000-03-14 | L&L Property Management Company | Spring assembly |
| US6173464B1 (en) | 1999-05-07 | 2001-01-16 | L&P Property Management Company | Pocketed bedding or seating product |
| US6256820B1 (en) * | 2000-02-09 | 2001-07-10 | L&P Property Management Company | Multilayered pocketed bedding or seating product |
| US6272706B1 (en) | 1999-02-05 | 2001-08-14 | L&P Property Management Company | Bedding or seating product having bands of springs |
| US6829798B2 (en) | 2003-01-08 | 2004-12-14 | L&P Property Management Company | Low density pocketed spring assembly and method of manufacture |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578834A (en) * | 1984-03-09 | 1986-04-01 | Simmons U.S.A. Corporation | Innerspring construction |
| GB2227654B (en) * | 1989-02-07 | 1993-05-05 | Nelsons | Machine for assembling upholstery springs into an upholstery unit |
| BE1003536A4 (en) * | 1989-10-05 | 1992-04-14 | B Linea | Construction for spring mattresses, pillows and the like and method for manufacturing of the construction. |
| PT100923B (en) * | 1992-10-01 | 1997-09-30 | Joao Roberto Dias De Magalhaes | ELASTIC ELEMENTS AND THEIR COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS - NON METALLIC - INTENDED FOR MATTRESSES, SEATS OR OTHER PURPOSES |
| DK56893D0 (en) * | 1993-05-14 | 1993-05-14 | Toledo Fjederindlaeg As | PROCEDURE FOR THE PREPARATION OF A SPRING INSTALLATION |
| US5987678A (en) * | 1995-05-10 | 1999-11-23 | Simmons Company | Multiple firmness mattress |
| ZA963856B (en) * | 1995-05-15 | 1996-11-21 | Sleepyhead Manufacturing Compa | Securement of flexible sheet material |
| FR2747118B1 (en) * | 1996-04-09 | 1998-09-25 | Oniris Sa | METHOD FOR MANUFACTURING A MATTRESS WITH POCKET SPRINGS AND MATTRESS OBTAINED BY SAID METHOD |
| US6159319A (en) * | 1996-04-29 | 2000-12-12 | L&P Property Management Company | Method and apparatus for forming pocketed coil spring mattresses |
| US6175997B1 (en) | 1998-01-22 | 2001-01-23 | L&P Property Management Company | Pocketed coil spring mattress cores |
| JPH11253278A (en) * | 1998-03-10 | 1999-09-21 | Matsushita Kogyo Kk | Inner spring which is fitted in furniture or bed, and its manufacture |
| US6574811B1 (en) | 1998-07-24 | 2003-06-10 | L & P Property Management Company | Pocketed spring assembly and associated method |
| US6295673B1 (en) | 1998-07-24 | 2001-10-02 | L & P Property Management Company | Reinforced pocketed spring assembly |
| US6374442B1 (en) | 2000-01-28 | 2002-04-23 | L&P Property Management Co. | Pocketed coil spring unit with combination of top and bottom sheets and inter-row bonding |
| SE516172C2 (en) | 2000-11-30 | 2001-11-26 | Stjernfjaedrar Ab | Separate pocket mattress |
| AU2002302754A1 (en) * | 2002-05-17 | 2003-12-02 | Springform Technology Limited | A coil spring assembly |
| KR100503556B1 (en) * | 2003-01-07 | 2005-07-25 | 주식회사 에이스침대 | Structure and Mnaufacture method of pocket spring set using in matress |
| GB0404823D0 (en) * | 2004-03-04 | 2004-04-07 | Harrison Bedding Ltd | Pocketted spring units |
| GB0519009D0 (en) * | 2005-09-17 | 2005-10-26 | Harrison Bedding Ltd | Pocketted spring units |
| GB2495499B (en) | 2011-10-11 | 2019-02-06 | Hs Products Ltd | Hybrid spring |
| GB2506104B (en) | 2012-08-10 | 2018-12-12 | Hs Products Ltd | Resilient unit with different major surfaces |
| GB201401606D0 (en) | 2014-01-30 | 2014-03-19 | Harrison Spinks Components Ltd | Pocketed spring unit and method and apparatus for forming the same |
| GB201602378D0 (en) * | 2016-02-10 | 2016-03-23 | Harrison Spinks Components Ltd | Resilient unit and method of manufacture |
| GB201708639D0 (en) | 2017-05-31 | 2017-07-12 | Hs Products Ltd | Transportation Apparatus and method |
| GB201708635D0 (en) | 2017-05-31 | 2017-07-12 | Hs Products Ltd | Pocketed spring unit and method manufacture |
| DE102017117831A1 (en) * | 2017-08-07 | 2019-02-07 | Agro Holding Gmbh | Pocket spring core and method for its production |
| DE102017117833A1 (en) * | 2017-08-07 | 2019-02-07 | Agro Holding Gmbh | Pocket spring core and method for its production |
| RU2701259C1 (en) * | 2019-04-23 | 2019-09-25 | Артем Андреевич Монахов | Mattress manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1747374A (en) * | 1927-06-25 | 1930-02-18 | James L Macinerney | Spring construction |
| GB2073015B (en) * | 1980-02-19 | 1984-07-11 | Rondel Ltd | Mattress |
-
1982
- 1982-03-17 IT IT09361/82A patent/IT1192390B/en active
-
1983
- 1983-03-10 EP EP83301324A patent/EP0089789B1/en not_active Expired
- 1983-03-10 DE DE8383301324T patent/DE3369500D1/en not_active Expired
- 1983-03-10 AT AT83301324T patent/ATE25232T1/en not_active IP Right Cessation
- 1983-03-15 CA CA000423651A patent/CA1194621A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5669093A (en) * | 1996-07-17 | 1997-09-23 | L & P Property Management Company | Pocketed coil spring assembly |
| US5761784A (en) * | 1996-07-17 | 1998-06-09 | L&P Property Management Co. | Method of manufacturing a pocketed spring assembly |
| US5957438A (en) * | 1998-02-04 | 1999-09-28 | L&P Property Management Company | Spring retainer assembly |
| US6036181A (en) * | 1998-02-04 | 2000-03-14 | L&L Property Management Company | Spring assembly |
| US6085397A (en) * | 1998-02-04 | 2000-07-11 | L&P Property Management Company | Method of making pocketed spring assembly |
| US6098968A (en) * | 1998-02-04 | 2000-08-08 | L&P Property Management Company | Pocketed spring assembly |
| US6272706B1 (en) | 1999-02-05 | 2001-08-14 | L&P Property Management Company | Bedding or seating product having bands of springs |
| US6173464B1 (en) | 1999-05-07 | 2001-01-16 | L&P Property Management Company | Pocketed bedding or seating product |
| US6256820B1 (en) * | 2000-02-09 | 2001-07-10 | L&P Property Management Company | Multilayered pocketed bedding or seating product |
| WO2001058316A1 (en) * | 2000-02-09 | 2001-08-16 | L & P Property Management Company | Multilayered pocketed bedding or seating product |
| US6829798B2 (en) | 2003-01-08 | 2004-12-14 | L&P Property Management Company | Low density pocketed spring assembly and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1192390B (en) | 1988-04-13 |
| DE3369500D1 (en) | 1987-03-05 |
| EP0089789B1 (en) | 1987-01-28 |
| ATE25232T1 (en) | 1987-02-15 |
| IT8209361A0 (en) | 1982-03-17 |
| EP0089789A1 (en) | 1983-09-28 |
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