US2695657A

US2695657A - Spring cushion structure

Info

Publication number: US2695657A
Application number: US43489A
Authority: US
Inventors: William A Clark
Original assignee: LA Young Spring and Wire Corp
Current assignee: LA Young Spring and Wire Corp
Priority date: 1948-08-10
Filing date: 1948-08-10
Publication date: 1954-11-30
Anticipated expiration: 1971-11-30

Description

Nov. 30, 1954 W. A. CLARK SPRING CUSHION STRUCTURE Filed Aug. 10, 1948 INVENTOR.

[WY/[W27 7. 670? cushion structure. part .of certain features .tof my 1 application "for letters =Patent, Serial No. 508,1filed January 5, 194.8,,Patent No. 2,568,055 issued September 18, 19.51, and particularly the bracing features thereof.

SPRING CUSHION STRUCTURE William A. Clark, Detroit, Mich.,rassignr 'tmLa A. Young Spring & Wire Corporation,Detr0it,,.Mich.

Application August.1!) 1948,- SerialNo. 43,489

Claims. (Cl. 155-173) United States Patent .This invention arelates :lto improvements iiIl :spring- This application is :a continuationrin- The main objects -.of-thisiinvention are:

First,.to provide a .spring cushionstructure comprising upright body stprings or upholstery supporting'springs with bracing means .toapreventgobjectionableaswaying,

which is effective for the purpose and at zthesame time,

tura-l details thereof. Fig. 2 is an enlarged fragmentary top view with the upholstery removed, parts being shown conventionally,

illustrating details .of .one of .the'rbracing units .of my invention.

"The embodiment. of .my invention illustrated in the accompanying .drawings comprises. a base border frame 1 provided witha downwardly facing channel having a tacking insert 2. Longitudinal basebars 3 :and-transverse bars i4 are secured .to :this frame preferably -.by welding. The longitudinal and transverse bars are preferably welded together at their crossing points as indicated at 5.

The base border frame and these longitudinal and transverse base bars provide a strong, rigid base upon which the body springs 6 are mounted. These body springs 6 are arranged in rows and are supported on the base bars, being secured thereto by means of the clips 7. The rows of springs are arranged in rows of connected pockets 8 as is more fully shown in my said application for Letters Patent. This particular detail, however, forms no part of my present invention except that there is a relationship between the bracing elements and the springs and their pocket strips which will be presently described or pointed out.

The structure illustrated comprises a top border and upholstery supporting frame designated generally by the numeral 9 and comprising the outer member 10 and the inner member 11, disposed in parallel spaced relation thereto and secured or rigidly connected thereto by means of the clips or struts 12. This border frame is an adaptation and is, in some respects, a modification of the Asaro Patent No. 2,336,975, issued December 14, 1943. The border frame is provided with a tongue 13 struck from the web portion of the strut or clip 12 and pivotally embracing the laterally disposed arm 14 at the upper or outer end of the brace 15.

The brace 15 is formed of wire or light rod stock and the tongue 13 engages the arm to prevent tilting of the arm relative to the frame while permitting its pivotal movement. The brace is provided at its inner or lower end with a helical-like coil or hook 16 which is engaged with one of the longitudinal bars 3 and with one of the transverse bars at their crossing points. It will be noted that the brace shaft extends tangentially from this helical-like hook or coil so that it is above the longitudinal bar 3, with which the hook is engaged while the commercial embodiment 10f my invention. attempted to illustrate ordescribe-other adaptationsor modificationswhich l contemplate as it is believed that -.hook passes vhelically aroundgand closely embraces the longitudinal bar ;with the tip portion 17 of. the I hook in thrust sustaining engagement with the bar ,3. and extend- :ingi upwardly at-thesidecf the transverse baropposite from .the shaft; portion of ;the I brace, thereby preventing transverse shifting. This arrangement permits a very rapid assembling 70f the brace .and ,avoids -the .use -.of

special clips. -It will be understood-that aslmany braces are .used

as desired, only two being-illustratedin theiaccompanying drawing.

The =,pocketed body springs are spaced, the pockets being :connected :bythe web .portions :18 and .thebraces are .threaded through these .web ,portions. advantage of preventing shifting of the springs so t-hat This '.has the they are not a likelyto. contact the-brace and cause ,noise.

Inuse, the-braces are subjected -to quite heavy stresses which tendgto .bow or bend the braces usually in the direction of ,the arrow in. Fig. 2. ,To,prevent thisben'd- ,-ing-or counteract thistendency, applicant-forms the brace with .awbend. 19 resulting in a-relatively short, .angularly disposed section 20. adjacent the hook. This :angularly disposed sectionlis disposed-intthe plane of theiarm 14 .of the brace. Commercial use .has demonstrated that this bend. or. angularly settsection isefrective inpreventing the objectionable bowing of the shaft of the brace.

The upholstery Zlisprovided with suitableupholstery .paddingZZ which is supported on the springs tbynieans .of the mat 23. :The skirt portion 24 of the upholstery covering isbrought aroundrthe base border frame and secured to the tacking insert strip as bythetacks 25.

I have illustrated and .described a highly practical I have not this disclosurewill enable thoseskilledin the art to-embody or adaptwthe sameas may be -desired.

Having thus described my invention what I'claimtas new and desire to secure by Letters Patent is:

I. A spring-structure comprisingza base framerand longitudinal and transverse base bars, rows of body springs mounted ton-said base and having their bottom .coilsnseeured :thereto .to support the "body springs in spaced upright :relation, .the rows of body springs being inconnected pockets a top border frame carried by the border body springs and comprising outer and inner members connected at intervals by struts, certain of said struts being provided with bendable tongues, and diagonally disposed braces having laterally disposed arms at their upper ends engaged by said tongues of said border frame struts, said braces having laterally disposed helicallike coils at their other ends projecting oppositely from their said arms, the helical-like coils being engaged with one of the longitudinal base bars and the transverse base bars at their crossing points, the axes of said helical-like coils coinciding with the longitudinal axis of said longitudinal bar and each helical-like coil having axially spaced portions disposed on opposite sides of a transverse bar at its crossing point with said longitudinal bar, the portion of each coil between said axially spaced portions being of helical-like form and in engagement with the longitudinal bar on the side thereof opposite from the side on which the crossing transverse bar is disposed whereby the longitudinal bar so engaged sustains the end thrust of the braces and the transverse bars prevent lateral shifting of their said other ends, the braces being arranged between and out of contact with adjacent body springs and extending through the connections for adjacent spring pockets.

2. A spring structure comprising a base frame and longitudinal and transverse base bars, rows of body springs mounted on said base and having their bottom coils secured thereto to support the body springs in spaced upright relation, a top border frame carried by the border body springs and comprising outer and inner members connected at intervals by struts, certain of said struts being provided with bendable tongues, and diagonally disposed braces having laterally disposed arms at their upper ends engaged by said tongues of said border frame struts, said braces having laterally disposed helicallike coils at their other ends, the helical-like coils being engaged with one of the longitudinal base bars and the transverse base bars at their crossing points, the axes of said helical-like coils coinciding with the longitudinal axis of said longitudinal bar and each helicallike coil having axially spaced portions disposed on opposite sides of a transverse bar at its crossing point with said longitudinal bar, the portion of each coil between said axially spaced portions being of helical-like form and in engagement with the longitudinal bar on the side thereof opposite from the side on which the crossing transverse bar is disposed whereby the longitudinal bar so engaged sustains the end thrust of the braces and the transverse bars prevent lateral shifting of their said other ends, the braces being arranged between and out of contact with adjacent body springs.

3. In a spring structure, the combination of a base comprising a border frame and longitudinal and transverse bars, body springs mounted on said base, a top border frame yieldably supported by the body springs and connected thereto, said top border frame comprising outer and inner members connected by a strut having a bendable tongue, and a diagonally disposed brace provided at one end with a laterally disposed arm engaged by said tongue and pivotally and non-tiltably connected to said top border frame by said strut, said brace having a helical-like coil at its other'end projecting oppositely from said arm and engaged with a longitudinal base bar and a transverse base bar at their crossing points with the longitudinal bar sustaining the end thrust of the brace and the transverse bar the lateral shifting stress on the brace, the coil closely embracing the longitudinal bar and the axis of the coil coinciding with the longitudinal axis of the longitudinal bar, the brace having an angular bend adjacent to but spaced from the coil and disposed in the plane of the brace and its laterally projecting arm.

4. In a spring structure, the combination of a base comprising a border frame and longitudinal and trans verse bars, body springs mounted on said base, a top border frame yieldably supported by the body springs and connected thereto, said top border frame comprising outer and inner members connected bya strut having a bendable tongue, and a diagonally disposed brace provided at one end with a laterally disposed arm engaged by said tongue and pivotally and non-tiltably connected to said top border frame by said strut, said brace having a helical-like coil at its other end projecting oppositely from said arm and engaged with a longitudinal base bar and a transverse base bar at its crossing point with the longitudinal bar sustaining the end thrust of the brace and the transverse'bar the lateral shifting stress on the brace, the coil closely embracing the longitudinal bar and the axis of the coil coinciding with the longitudinal axis of the longitudinal bar and the coil having axially spaced portions disposed on opposite sides of the transverse bar, the portion of the coil between said axially spaced portions being of helical-like form and in engagement with the longitudinal bar on the side thereof opposite from the side on which the crossing transverse bar is disposed.

5. In a spring structure, the combination with a base comprising a border frame and longitudinal and trans-' verse bars disposed in crossing relation, body springs mounted on said base, a top border frame carried by the body springs, a diagonally disposed rod-like brace having a laterally disposed arm at its upper end pivotally and non-tiltably secured to the top border frame, said brace having a laterally disposed helical-like hook at its lower end extending oppositely from its said arm and engaged with one of the longitudinal bars and having axially spaced portions disposed on opposite 'sides of one of the transverse bars at their crossing point'with the longitudinal bar sustaining the end thrust of the brace and the transverse bar sustaining the lower end of the brace against lateral shifting, the portion of the coil between said axially spaced portions being of helical-like form and in engagement with the longitudinal bar on the side thereof opposite from the side on which the crossing transverse bar is disposed, the brace having an angular bend therein adjacent its hook providing a relatively short angularly disposed section in the plane of the braceand its arm and acting to counteract bowing or bending of the brace between its said arm and hook.

3 References Cited in the file of this patent UNITED STATES PATENTS Number Name Date Re 18,860 Costigan June 6, 1933 999,816 Macy Aug. 8, 1911 1,103,526 Mellon July 14, 1914 1,592,870 Scholzen July 20, 1926 1,859,630 Oldham May .24, 1932 2,002,157 Reed May 21, 1935 2,199,382 Widman May 7, 1940 2,364,948 Clark Dec. 12, 1944 2,469,216 Spunt et al. May 3, 1949