US1692805A - Drawer support - Google Patents

Description

Nov. 27, 1928.

A. H. ANpERssoN DRAWER SUFPORI` Fild F01). 7, 1924 wim@ l,Patented Nov. 127,` 1928.

" UNI-TED; STATI-:s

PATENTLOFFICE.

AXEL H. ANnERssoN, or nENToN HARBOR, iurcnn'sfmxr,`.,AssIcflaoa, BY MESNE AssIeNMEN'rs, 'ToenE'nmjG'roN 'Horror DELAWARE.

i Application ilcd February My invention relates to that class of supports for drawerslargely used in sectional metal filing cases wherein the drawer is sup ported on roller-supported extension slides arranged to support the [drawer while permitting its Withdrawal to nearly the front line of the casing.' The object`l of my inventionis tozprovide an improved drawersup-l port of this type which shall be compact and In the drawing Figure' 1 is a central l longitudinal section` of a sectional filing case unit to which my invention is .shown applied, the drawer and parts beyond the'plane of .thesection being shown in elevation; F 2 is a perspective ofthe drawer support members alone; and Fig. 3 is a transverse section of the dsupport throughone pair of d0uvble rollers -near the center of one ofthe pair of intermediate. extension members of the same. f The same reference characters indicate the same parts in all the figures of the drawing.

As in other devices of this character the support comprises two counterpart sets of three members each, one setlatfeach side `of the dra-wer. Each setA includes a stationary trackimember' secured to the inside face of the adjacent casing, a loating intermediate extension member,` and a drawer member secured to thefdrawerand movable relatively to the floating member. In my improved form of` a sheet-metal. strip 1 formed with vVertical outer portions 2-2 separated by a central rib 3, and havingupper and lower horizontal llanges, marked 4e and 5, respectively. The central ribs of the two track 4members affords spacing surfaces for guidiing the adjacent faces of the floating members later to be described with minimum frictional contact, and the upper and lower anges provide track)y surfaces for thelrol1 able manner,l asby' spotwelding.

"DRAWER surromf. A

"f,y 1924. seriaijnq. veer-12a ers of such members. The track members are secured to the drawer casmg RAN D INC., OF .TONA\VA.NDA, :NIE- YORK, CORPORA- inany suitvrlhe lfloating members, 6-6 are-formed of y Strips of sheet-metalfwhich in the present in- /stance are inwardly-flanged at-the Vbottom f' and connected to -cross-strips 7 7. Near the frontend of each member' upon itsvertical or bodyA portion is mounted a front lower roller whlch extends through' anopening cut 1n the bottom flange a-suflicient distance to .ride upon the bottom flange 5 of the track y member. Adjacent the center, each floating memberV is provided wit-lr. an upper intermediate roller 9 arranged to cooperate with the upper Hang'e lof the track member, and a lower intermediate roller 10. which extends.

through an opening. cut in the bottom flange of the`f1oating mem-ber to permit it to cooper'- ate with the-lower ilange 5 of the station-- ary track member. This lower intermediate roller is loosely mdunted .to permit it to automatically adjust` itself to slight vari-.. ations in the faces of'the track members and shift slightly without binding under the changing` stresses to which it is subjectedI as .the drawer is moved out and in. At the rear end of each Heating member is arranged an upper rear roller 11 which is so positioned as to cooperate with the upper flange 4 of the track member.- f

-The rails l2 which support the .drawer are in the present instances strips of channel iron secured to the outer face ofthe drawer in any suitablemanner, as byspot welding. The

upper and lower flanges of the rails are ar ranged to passbetween thepairs of-rollers 9 and' 10, the lower vflanges resting upon the front rollers 8 and the upper'flanges being arranged to cooperate with the upper rollers 11 in the operation of the drawer.

Si'litably-positioned stops are provided to limit the movements of the parts. To'this end, the floating frame consistmg-of the meme bers 6 and cross-bars 7 is provided withlaterally extending blocks 6a secured to the', bottom'of the opposite flanges of the members 6 and arranged to'bring up at theV limit of outward movement of the frame against lugsla extending: inwardly from thev bottom lange of the stationary track. .The drawer is provided with' a buffer 7l arranged in' an l open-front box 7 which is secured` tothe under face of the bottom wall of the drawer,

$0 ment and assemblage l s6of-fstation'ary' trac A 'arlvertical intermediate portion secured to jthe drawer casing yand horizontal upper and j lowerangesextending towards each other;

l ".thiibuller being arranged to cooperate with l alli ",7! struck up from the front cross bar 7:10 .the ffloatingframe.

4 The top flan e 4'of each track member may be longitudina ly lslitted for a short distance )t a pomt'about midway of its length, to per- ;'.mit a"lop 4.* to be bent down below the level' '.1 offthe'top of the associated-floating member 6 for the purpose of.preventing.lateral'disenf 10 ggement of the parts under abnormal strains to .which the structure might occasionally be a subjected inuse. 1 i 'Ina'smuch asthe mode of operation of the l parts is well known in the art it will suffice Q15 to explain that whether the center yof gravity of the'drawer is in front .of or to the rear of therollersin the act of shifting the drawer v 'in jor out; the rails 12 will be forced to bear upon the/loosely-pivoted rollers 10 and cause '90 themto roll upon the lower horizontal flanges v of'thej .stationary-track members, thus causin g. the; floating frame to move in. the same.

= u ,direction as lthe drawer at one-half its speedl I vinco Y' fof the ro ers in their bearn s in the floatuence of the action of the pivots frame.` My invention as' efore indica-t- ,cientmechanical construction and arrangeof the parts, associated md related ls ascribed, throu h which `the drawer is thusfsupported an guided. 'Ielaim:.`- l "LA drawer'su port .comprising .a pairmembers each having f-a pair of lfloating members `each having a f .5 4vertical bodportion arranged parallel and" track members and.A A al* bottom extending toad'aeent sai stationa ed resides not inl thls known mode of oper. ation-broadly, but in the compact andellif`A v .severa the plane of said rstfmentioned horizontal lower flange anda pair of intermediate 50. 'rollers and an upper rear roller below theA plane of said upper flange;- said floatingV members being rigidly secured together-by' cross-bars secured to their horizontal bot?A j tom flanges; and a pairof railssecured to 5.5

the drawer and `eac arranged to pass below thesaid upper rollers and above said lower rollers of its corresponding floating: member.

2. A? drawer' support comprising a .pair 00 of stationary track members each 1 aving a vertical intermediate port-ion secured to the drawer .casing and horizontal upper and" if lower flanges extending towardseach other;a

v'a pair of 'floating members each havin a 65 j vertical body portion arranged parallel wlth and adjacent said stationary track member and havin four rollers mounted on the inf .ner sle t ereof, the said rollers including a front bottom roller above the plane' of. the 70v b''ttom flange. and a pair of upper and I owe intermediate rollers andan upper rear roller below the plane of said upper flange, the Y .upper flanges of the -track members being severally longitudinally slitted and the. por- 75' tion of each memberadjacent its slit'lbe-v ying bent down in a short loo below the level of the top of the associated oating member" and a pair of rails-secured'to the drawer an rollers and above -gsai lower rollers o its corresponding `floating member.

f- AXEL fri.A

y arranged to lpass below ysaid-u per l

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