USRE18860E - Spring structure - Google Patents

Description

W.S. COSTIGAN SPRING STRUCTURE f' Re. 18,860 .'5 Sheets-Sheet 2 June 6, 1933.

original FiledfFebQ 2. 192e IN VEN TOR. ta'ymg ATTORNEY. l

W. S. COSTIGAN SPRING STRUCTURE June 6, 1933.

original Filed Feb. 2,'1928 INVENYOR A TTORNEY.

and connected to the springs ecimed June s, 1933 STATI-:s PAT-ENT ori-fics wNsLnIff s.-qos*rIGN,-"or IIILLSnALia MICHIGAN, LassIGNon 'ro REYNOLDS SPRING comm, or JAcxsoN, MICHIGAN s SPRING s'rmcrunn l Urllnal No.' 1,843,848, datedebruary'; 1932. Serial No. 251,370. led February 2, 1928. Application tur reissue mea august 4, 1932. seria; No. 627,542.

This invention relates to spring structures. One object ofthe invention is to provide a springembodying rows of springs with Hexible strips to separate the adjacent rows of springs with the strips connected at their upper and lower edges to the top and bottom coils of the springs t0 normally hold 'the springs under a predetermined compression to maintain an effective thickness of the lo spring structure and operating tolimit the` recoil of the .springsy upon expansion incident to ycompression of the compressed springs.

Another object of the invention is to pro- 15 vide a spring structure for automobile or other seats embodying rows of springs withY strips of fabric or other suitable material arranged to form partitions between the adjacent rows of springs, separating the rows, to hol-d `the springs under a given compression and operating to limit the recoils of the springs incident to expansionsubsequent to compression of the springs in use and thereby preventing the rider from being thrown upwardly olf of the spring seat structure.

A still further object of the invention is to provide a resilient soft spring cuslon seat yfor automobiles and the like embodying suc-h characteristics as to provide easy and comfortable riding for the occupant and to prevent a complete compression of 'the sprlngs incident to vabnormaljars and thereby prevent the rider from-striking the bottom of the structurel and b v reason of means connecting the tops and bottoms of the springs to limit recoil thereby preventing therider frqm'v'being thrown olf the seat a ainst the top of the car in the event of jar ue-to uneven roadways.

spring structure wherein the springs are arranged. in rows between flexible partition strips of suitable material which se arate `the rows and are connected `at their ye ges to thetop and bottom coilsof adjacent rows and operating springs according to the-width of said strips and the recoil of the-springs.

It is st ill further designed to providea' 'to control the height ofnthe so as to control `the thickness of the structure" l lVith the above and 'other objects in View,

the invention consists in the construction and-novel combination and arrangement of parts hereinafter described, illustrated inthe accompanying drawings, and set forth in the clalms hereto appended, it being understood 4that various changes in the form, size, and

minor details of construction may be resorted to without departing from the spirit of the invention or sacrificing iany of the ad-I vantages thereof.

In the drawings:

Fig. 1 is an inverted plan view,vthe fabric being broken away. e

Fig. 2 is an en arged transverse sectional view of the structure.

Fig. 3 is an enlarged tudinal sectional views:

Fig. 4 is a .plan viebv with parts broken awa Flg. 5 is an enlarged detail sectional view fragmentary longiof one lower corner of the spring structure.

Fig. 6 is an enlarged detail sectionalview lshowing the connection of one of the intermediate p-artitions with the upper coils of adjacent springs.

Referring now more particularly to the accompanying drawings, the reference character 10 indicates a base frame of sheet metal provided with a. continuousinner groove 11 and a continuous outer groove 12 adapted to receive a wood insert to which the lower edge of the usual upholsteryskirt (not shown) may be secured by tacking. Any other suitable type of base frame may be employed. v

Supporting wires 1 4 transversely disposed and spaced apart have their ends connected to the base frame 10, and in the base frame shown, said ends are disposed in said inner groove in which they may be secured by compressing or pinching one of the walls of the inner groove at 'the point of connection of the wires with said groove as shown at 15. A longitudinally disposed supporting wire 16 intersects With'the transverse wires 14 and the ends thereof may besecured in the said inner groove 11 in the same manner as the ends of the wires 14.

A spring supporting reticulated lframe 17 is mounted within the basey frame and has the same shapel or contour thereof and is maintained slightly spaced from the inner walls of the base frame. This reticulated frame is preferably of metal and composed of a border wire 18 and wavy or slightly kinked transverse wires 194 intersecting and interlaced with similarly formed longitudinal wires 20 both of which have their ends securedto the border wire, andas shown these ends are bent' around the border wire 18 as' indicated at 2l. The wires 19 and 20 of each set are disposed relatively close together to provide an open framework having relative ly small openings 22. Thus, there is pro# vided a lattice or open framework or spring support in which the open work may obviously be formed of strips of sheet metal instead of wires.

A sheet of burlap or other fabric o r suitable material 23 is disposed over the top of the reticulated frame 17 and clipped or secured thereto in-any/suitable manner. The transverse and long g'itudinal wires 19 and 20 are connected to the aforesaid supporting wires 14 and 16 by means of suitable fastenings 24 whereby to secure the covered reticulated fr'ame to the wires 14 and 16 and maintain the reticulated frame within the base 10 and slightly spacedv from the latter and provide a substantial support for the body springs 25 of the structure.

The body springs 25 are illustrated as being of double cone knotted type but they may be unknotted or knotted or cylindrical or barrel or other suitable type. They are arranged in rows relatively close together and have their base coils resting directly upon the aforesaid burlap or other covering material 23 so that by reason of the interposed soft material 23 between the springsl and the reticulated frame the rubbing or contact between the metal springs and metal reticulated frame is prevented by the said soft material 23 which acts as a silencer to prevent noise incident to metallic contact between the springs and said frame. Thus, it 4will be understood that the body springs have their base coils disposed directly upon the burlap or other suitable soft material 23.

A strip of burlap or other suitable fabric or material 27 is arranged between rows of springs 25. There is front burlap or other strip 28 and a-rear burlap or other strip 29.V

bothmof which: cooperate with ,the aforesaid strips 27 for the purpose of controlling the effective' height of the body springs and the thickness of the structure and to prevent recoil of the springs limit. -To these ends, the strips 27, 28 and 29 have a width determined by the length of initially compressed springs and have their longitudinal edges connected :to the top and bottom coils of the body springs. More specically as illustrated, each fiexible strip27,

beyond a predetermined 28 and 29 has'its opposite longitudinal edges folded over a longitudinal light gauge wlre reinforcement 30 which may be retainedin the respective fold by'stitches, as at 31.` Suitable fastening devices 32 connect the upper and lower reinforced edges of the strips 27, 28 and 29 to the top and bottom coils of the springs. .The fastening devices 32 also secure the up er and lower reinforced edges of the border'strips 28 and 29 to the bor er frame 18 of the reticulated frame and to the upper border wire 33; the strips 27 located between adjacent springs 25, as well as the wires reinforcing their upper edges, are unlconnected from the upper border 33, as shown' in Figs. 3 and 4, to permit the same to follow the llexurc of the adjacent springs. The 'reinforced edges of the strips are secured to i the coils of the spring after the springs have been initially compressed the desired degrec, and the strips maintain this initial compression of the springs and thereby govern or control the thickness of the cushion and operate to limit recoil of the springs to prevent an occupant of the seat from being thrown upwardly into the top of the car incident to jars due to uneven roadways as well as preventing undue stress or wear upon the outer covering or usual upholstery finishing material. There is no friction between the partition strips and the springs which does away withy unnecessary wear on the fabric stripsgdue to the firm connection of the strips withthe springs.

. One edge of thetop of the border frame 33 is extended outwardly. For instance, a Wire 35 has its ends bent, as at 36, and connected tothe upper border wire 33 by means of suitable clips 37, the border wire 33 having loops 38 which extend outwardly to the wire 35 and connected to the latter by means If desired, the structure may be braced by braces40, each of which has bent ends 41. The .braces preferably extend, diagonally from top to bottom of the structure, passing through the partitions 27. The upper bent end 441 of each brace or stay 40v is connected preferably to the upper frame by means of suitable clips 42. The lower bent end of each brace or stay is preferably connected to the border wire of the reticulated frame. f

Prior to placing thel finishing upholstery material 1 (not shown) on the structure it is preferable to close the top and ends of the structure with burlap or other suitable material as show'n.

What is claimed is:

1. In a springlstructure, a base frame including a marginal element having an inwardly opening longitudinal groove, transf versely disposed wires spaced apart and having their ends fitted in said groove and punched therein, a longitudinally disposed supporting wireintersecting said'transverse wires and having its ends litted in the groove of the base frame and pinched therein,- a reticulated sprin supporting frame disposed within the base rame and mounted on said longitudinal and transverse wires and supported thereby, a fabric covering disposed on said reticulated frame, means piercing said fabric covering and embracing portions of the reticulated frame to secure said covering to the reticulated frame, and springs mounted on said fabric covering and secured to saidJ reticulated frame. A

42. In a spring structure, a base frame, an upper frame, rows of springs arranged within and between said frames, certain of said springs constituting bordeig'prings, strips ofV fabric of less height lthan the normal expansion of said springs arranged betweenadjalcent rows of springs engaging the springsV only upon two sides., members reinforcing the longitudinal edges of said strips of whichV at least the upper members are llexible, fastening means `securing said members to' said springs to place the same under compression, said upper members having sufficient flexibilto permit substantially individualaction it lofy the springs and permitting substantially individual action betweeny said upper frame and the springs within the border springs.

3. In a spring structure, a base frame, an.` upper frame,` rows of springs arranged withl in and between said frames, certain of said springs constituting border springs, fabric of less height than the normal expansionof said springs arranged between adjecent rows of springs enga 'ng the springs only upon two sides, ilexib e members reinforcing the longitudinal edges o f said strips,

of springs engaging the springs fastening'means securing said members to i said springs to place the same under compression, said members and strips cooperating to said yspi-ings arrangedbetween adjacent rows of springs engagingthe springs only upon two sides,'lleiiible members, reinforcing the springs engaging the springs only upon two sides,. wire members reinforcing the longitudinal edges oi"sa.id strips of which at least the upper members are flexible, fastenin means piercing said strips and embracing sai members securing said strips to said'spgringsl independent of the upperto place thel same under coinpressior said means flxedly engaging said stri' s an ably embra`c1ng'` said members, w ereby said vsprings are spaced lbngitudinally of the structure by said strips .and have substantially individual action.

In testimony whereof I hereunto ailix my signature.

WESLEY S. COSTIGAN.

strips of y definitely position said springs within said I upper frame relative to eacli other' and having interconnections -with said u per frame of a character enabling substantia ly individual action between said upper frame and the springs within the border springs.

4.. In a spring structure', a base fra-me, an upper frame, rows of springs arranged within and between saidframes, strips of fabric of less height than the normal expansion of said springs arranged between adjacent rows onl upon two sides, flexible members reinforcing the longitudinal edges of said strips, fastening means securing said members to said sprin to place the saine under compression, said said upper frame at least at one flexible members' being unconnected with end whereby the same may vfollow the ileimre of said 5. 'n a spring structure, a base frame, an upper frame,

of less height than the normal expansion of' slidv ioo CERTIMCATE or coRREeTIoN. f

Reissue No. 18,860. y i June e, 1933.

I WESLEY s. CosTIGAN.

It is hereby certified that error app-ears in the printed specification of vthe above numbered patent requiring correction as follows: Page 2, line 128, claim l. for "punched" read "pinched"; and that the said Letters Patent should be read with this correction therein that the same may'conform to the record of the case in the Patent (lffice.

Signed and sealed this 15th day of August. A. D. 1933.

M. J. Moore.

(Seal) I v Acting Commissioner of Patents.

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