US2271842A

US2271842A - Cushion unit for upholstery and method of making the same

Info

Publication number: US2271842A
Application number: US283597D
Authority: US
Inventors: Jr Fred A Nachman
Original assignee: NACHMAN SPRINGFILLED CORP
Current assignee: NACHMAN SPRINGFILLED Corp
Priority date: 1939-07-10
Filing date: 1939-07-10
Publication date: 1942-02-03
Anticipated expiration: 1959-02-03

Description

CUSHION UNIT FOR UPHOLSTERY AND METHOD OF MAKING THESAME 5J; e y f ,f2.5 3 gV/f/f/ '2 2 mumgm MMM n@ 2 Il'. A. NAcHMAN, JR 2,271,842 CUSHION UNIT FOR UPHOLSTERY AND METHOD 0F MAKING THE`SAME Feb. 3, 1942.

Fired July 1o, 1939 2 sheets-sheet 2 Patented Feb. 3, 1942 CUSHION UNIT FOR UPHOLSTERY AND METHOD OF MAKING THE SAME Fred A. Nachman, Jr., Chicago, Ill., assignor to Nachman Springfilled Corporation, Chicago,y Ill., a corporation of Illinois Application July 10, 1939, Serial No. 283,59

7 Claims.

The invention relates to improvements in the upholstery art and particularly to the manufacture of spring assemblies for incorporation into mattresses and cushions and a method of pro- 1 ducing the same at very small cost.

More particularly, the invention relates to what may be termed jacketed spring assemblies wherein an all-metal spring structure is enveloped in an upholstery batt and is secured thereto in such manner that the securing means serve several useful purposes as hereinafter fully described.

Several embodiments of the invention are illustrated in theaccompanying drawings, wherein,

Fig. 1 is a vertical longitudinal sectional view, partly broken away, of a cushion unit constructed in accordance with the invention. A

Fig. 2 is a Vertical transverse sectional viewv of the same, also partly broken away, taken on the line 2-2 of Fig. i.

Fig. 3 is a perspective view illustrating a modilied form cf the construction shown in Figs. l

and 2 with parts broken away.

Fig. 4 is an end elevation of a strip of brous padding, such as a conventional type of sisal fibre batt constructed in accordance with the present Y may be of any conventional type, an exemplary Said spring assemportions of the batt l are spaced from 'each other substantially a distance equal to or slightly less than the width of the spring assembly to be enveloped by the batt and are spaced, preferably, equidistantly from the side edges of the batt for a substantial distance.

A batt of the type shown in Fig. 4 is made ofv I somewhat greater width than the spring assembly 4 and is preferably of suicient length to completely envelope said spring assembly, which type being shown in Fig. 1. bly may be 'equipped with or devoid of border Wires or other marginal frame elements also common in the art.

In the instance of Fig. 1, the length of the batt or pad is such that 'its ends meet at the point 5. The width of the batt,as above stated, is somewhat greater than the, width or length of the spring assembly to be enveloped thereby, depending upon whether the batt is disposed to extend transversely about an assembly for a mattress or cushion or longitudinally thereof, but in the case ci a spring assembly for seat cushions, the batt the subsequent overlap of the-ends of the batt, Y

- as shown at the right hand end of Fig. 6, being on the line 9,-9 of'Fig. 8.

Fig. '10 is a view similar to Fig. 2 on a smaller scale showing another embodiment of the in'- Vention. Y y

As shown in Fig. 4, `a-fibre batt or pad l, of any ofthe conventional types commonlyaxsed in upholstery, and which may be composed ofv stitched sisal fibre of a conventional type, is equipped along its .sideedge portionswith strips 2 of fabric secured thereto by stitch chains 3 spaced from the side edges of the batt and disd posed between the side edges of ,said strips 2.

will be so disposed about the said lassembly as to have the side edges of the batt extend along the longitudinal edges of the spring assembly with thel verticallydisposed portions of the batt at front and rear of the spring assembly. y

The said batt i is lapped about the spring assembly so that the fabric strips 2 are disposed upon the outer face of the same.

After the batt l has been so disposed about the` spring assembly, as shown in Fig. 1, the outwardly projecting portions or flaps of the strips 2' are drawn downwardly from the upper edges 'of the horizontal face of the batt and upwardly from the lower face of the-,batt so that their edges meet and said meeting edges are then secured together along a horizontal plane substantially midway between the upper and lower faces of the spring assembly by means of stitch chains `l. 'I'he last-named flaps or anges are drawn i sembly or slightly less, the tautness of the portions joined by the stitch chains 6 will stretch The said stitch chains 3 along opposite edge 55 the batt tautly over the faces of the assembly and will causethe stitch chains 3 to become aligned substantially with the planes of the upper and lower faces of said assembly'and will crowd the portions of the batts pierced by said stitch chains 3 and normally compressed by them, to hug the side edges of the assembly very closely and will also cause the outermost adjacent free side edge portions of the batt to turn inwardly to underlie the side edge portions of the top and bottom faces of said assembly. As these side edges are relatively sharp, or rough, the batt thus becomes so firmly secured against displacement as to obviate the use of further securing means.y

The strips 2 extend the entire length of the batt I and become folded transversely at their middle portions, the stitch chains 6 extending substantially the entire lengthof said strips. The meeting edges of the batt may be stitched together by means of loop stitches 1 if desired and thus the spring assembly becomes completely housed by said batt and the last-named portions of the strips 2.

After the said strips 2 have been secured together by the stitch chains 6, an endless band 3 of resilient foamed latex compound is disposed about the spring assembly and the batt enveloping the same with the side edges of said band disposed ush or substantially flush with the outermost edges of the side edge portions of the batt aligned with the stitch chains 6. The.

other or inwardly extending portions of the strips 2 are then cemented to the opposed side edges of the band 8 to secure the latter firmly in place. The band 8 is stretched slightly to receive Lthe batt-enveloped spring assembly 4` and is thus rendered self-retained in place and acts also to secure the batt more firmly against displacement relatively to the spring assembly 4.

As shown in Fig. 3, instead of using an endless band 8 of said foamed latex, pads 9 of the same material, equal in width and length to the battenveloped spring assembly, may be disposed upon the upper and-lower faces of the batt and se'- cured in place by means of the said last-named l upwardly and downwardly extending portions of the strips 2 and, if desired, strips IIJ of fabric may be cemented to the front and rear edges of said pads to cover the front and rear face portions of 'the foamed latex pads 9 to further secure the same to the spring assembly.

Obviously, if desired, only one of said pads 9 may be employed 'to cover the upper face of the structure, leaving the lower face free of any covering except the ultimate outer cover fabric common to all cushions and mattresses.

In instances (as exemplified in Figs. 5to 9) foamed latex or other additional layers of padding, it is preferred to secure strips 2a of a suitable fabric to the outer faces of the side edge downwardly from the upper portion and upwardly from the lower portion of the batt into position to be joined by means of stitch chains I8 identical with the stitch chains E of Figs. 1 and 3, the spring assembly being (as in the case of Figs. 1-3 inclusive) of any of the various conventionaly types. I'hus the outer edge portions of the batt I I become reversed in position and the side edge portions of the batt I are not only -drawn downwardly to cover the corresponding peripheral edges of the spring assembly, but also inwardly to cover the lower faces of the peripheral edge portionsy of the top and bottom parts of the spring assembly, the joined and tensioned flaps 2a 'being then disposed in vertical planes substantially aligned vertically ,with the outermost peripheral portions of the spring assembly which is generally and most commonly equipped with a suitable border wire I9'along its top and bottom edges as shown in Fig. 7.

Obviously, the

strips

2 or 2a when stitched together-by ,stitch chains 6 and I8, respectively, serve not only to maintain the top and bottom portions of the batt in place on the spring assembly against lateral movement, but also serve to hold said respective batts against longitudinal movement relatively to or about the spring assembly. In each instance the peripheral edges of the batt along the top and bottom faces of the spring assembly are nicely rounded and particularly so in the instances of Figs. 5-9 inclusive. This is advantageous in inserting the spring assemblies into the cover fabrics of the mattresses and cushions, said batts being further advantageous in that they thoroughly pad the border wire frames of the spring assembly.

place it, will be transmitted to the opposite pad as welly as to the batt and by the latter to the corners along the top and bottom of the spring assembly in line with the direction of' stress.V The batt obtains a strong frictional hold on the assembly along the top and bottom 4corners of the latter so that displacement of anypart of the structure relatively to any other part thereof is substantially impossible.

Thus, as exemplified in Fig. 10, each of the I webs 2a may be of such width as to include porlwhere the spring assembly is sold devoid of the U spring assembly, but also to cause the end portions I3 of the batt to be overlapped, as shown in Fig. 6, said overlapped edge portions being stitched together by means of stitching Il.

In Athis instance the batt Il will also be of greater width than the spring assembly enveloped thereby and after said batt has been disposed about the spring assembly, as shownin Fig. 7, the portions 2a of the fabric strips stitched to the batt along its side edge portions are turned

tions

20 or 2|, one of which is disposed to completely cover the batt I which it borders and be secured by stitching 22 along its outer or normally free edge tothe extensionportion 2| of the other web 2a adjacent the stitch chain 3 which secures the latter to said batt. The last-named extension portion 2| may beof even greater length and disposed to overlie the top and sides of the resilient pad 9 and be secured along its initially free edge portion to the other web 2a by stitching 23 adjacent th( stitch chain 3 which secures the latter to said batt.

Additionally, the extension portion 2l may be provided with hems 24 so disposed as to be lo' cated at the corners of the resilient pad 9 and to which the meeting edges of the boxing strip and cover fabric of the casing of the ultimate mattress or cushion may be secured in a well known manner.

Obviously, the freel edge portions ofthe upwardly and downwardly projecting portions of the

strips

2 and 2a cemented to peripheral faces of the resilient pad, provide flanges 25 to which the meeting edges of the boxing strip and cover springs thereof, and are connected with the next adjacent inner springs, which is common in the art, the periphery of the assembly is of greater height than the middle portionthereof. In such instances the

webs

2 and 2a, respectively, are drawn so taut as to reduce the height of the periphery of the assembly to that of the middle vportion of the same.

tending upwardly from said webs in the vertical planes of the said Webs, and a unitary resilient pad offoamed latex or the like disposed over the last-named face of said batt covered assembly and having side faces disposed in the planes of said Webs and secured to said free portions of the latter.

3. A cushion unit comprising a springassembly,4batt coverings of greater width than the top and bottom faces thereof completely covering the latter, fabric strips secure'd to the outer faces of said coverings along side edge portions thereof by means of stitch chains disposed initially in substantial alignment with the`vertical planes of the side edges of the assembly and diposed in spaced relation to the side edges .of said fabric strips and' spaced from the side edges of said coverings, the outer edge portions ofthe said The batts used may be of any type composed of long bre, such as sisal, wherein the fibres are held against relative displacement by stitching and which may be devoid of or equipped with a backing sheet of fabric through which the said passes, or the same may be of the quilted type wherein the fibrous constituent is disposed between fabric sheets. All of these types of batts as so well known to those skilled in the artvthat illustrated and lparticular description thereof yis deemed to be unnecessary.

Obviously in instances where the batt is equipped with fabric sheet backing or is quilted,- as aforesaid, the stitch chains 3 will be passed through the fabric also.

'I he Width of the portions of the fabric strips 2, which are shown and described as cemented to the latex pad may be appreciably'greater than shown with outermost portions overlying or otherwise arranged 'relatively to said latex pad,- but in such manner as to secure the latter in place.

I claim as my invention:

1. A. cushion unit for upholstery comprisingA a conventional spring assembly, a continuous batt structure of greater width than said assembly disposed about thesame with its side edge portions .embracing the peripheral edges of the top and bottom portions of the latter, fabric strips secured between their side edges to side edge -portions of the said batt and presenting oppositely :xtending flaps along the sides of said assembly, opposed portions of vsaid flaps being secured together in a plane substantially midway between the top and bottom portions of said assembly and providing side closures for the latter, correspending other -portions of said flaps extending outwardly from a load-supporting face of the batt-enveloped assembly'along the side edges thereof, and a. resilient unitary pad of foamed latex or the like disposed between andsecured to the assembly and spaced outwardlyv from the same, free extension portions of said @webs vexstrips at top and bottom of the structure being drawn toward each other` and secured together to `oppose and close the sides of said assembly and cause said stitch chains to become disposed substantially in the planes of the top and bottom faces of the assembly with the free edge side portions of said coverings projecting inwardly of theA side edges of said assembly, the other edge y portions of said strips'constituting initially free flaps and a Aunitary resilient pad of foamed latex or the like disposed over the last-named face of said batt-covered assembly and having side faces disposed in the planes of said webs and secured to said free iiaps.

4. An upholstery unit comprising a spring assembly, batt elements covering both faces thereof and having their side-edge portions disposed in embracing relation to the side-edge portionsv of the upper and lower faces of the assembly, a web of fabric secured along .opposite side edge portions to the opposed edge portions of said batt elements by means of stitch-chains spaced from the sideV edges of said batt elements and from the side edge portions of said webs, the portions .of the latter' disposed between the said stitch- "chains being of less depth than the normal depth of the space between the portions of said `batt elements 'connected with said webs by thel 5. An upholstery unit comprising a spring as' sembly having batt covered upper and lower.

faces, the cover batts of said faces being of greater width than the latter with their side edge portions constituting anges, turned inwardly into embracing relation to the upper and lower side edges of the spring assembly,.a pair of fabric webs secured lalong their upper and lower edge portions to said flanges by means of stitchchains spaced from the said edges of said webs and from the inner' edges of said flanges and spaced apart a distance less than the depth of space between the opposed inturned edges of said flanges, the edge portions of said webs constituting flanges, and -a pad element disposed over one of said cover batts and secured along its side edges to the last-named flanges, said webs acting to maintain the side fsprings, of the assembly partly compressed and to maintain the said cover-batts taut and the side flanges thereof in said embracing relation to the side edges of the assembly.

' 6. A structure of the type specified comprising -a conventional spring assembly, batt coverings of the upper and lower faces of said assembly, with free edge portions thereof turned inwardly, and in embracing relation thereto, and a pair of substantially taut fabric webs secured along upper and lower side edge portions to` the said inwardly turned edge portions by rows of fastening means spaced from the free edges of said coverings, said webs disposed substantially in the planes of the embraced edges of said assembly and constituting means whereby the batt coverings are maintained in place.

7. The hereindescribed method of making a pad-covered spring assemblyy which consists in first providing batt coverings of greater width than the spring assembly, then securing to each of the side edge portions of each of said batt coverings upon their outer faces a strip of fabric tance substantially equal to or slightly less than the width of said assembly and extending through said coverings, then disposing said coverings over the faces of said assembly, then turning said fabric strips over the side edge portions of said coverings to thereby cause the free side edge portions of the latter to overhang the side edges of the upper and lower faces of the assembly and thereafter, while the side edge portions 'of said assembly are maintained free, securing i stitch chains at each side of the assembly, and

by means of stitch chains spaced apart a disthen allowing the side edge portions of the latter to expand and thereby tensioning the webs and the coverings and causing the free edge portions of said coverings to embrace the edges of the assembly and said webs to become disposed in the planes of the edges of the assembly so enveloped.

FRED A. NACI-IMAN. JR4