US2513167A

US2513167A - Folding cot or bed

Info

Publication number: US2513167A
Application number: US759090A
Authority: US
Inventors: Gottlieb Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-07-05
Filing date: 1947-07-05
Publication date: 1950-06-27
Anticipated expiration: 1967-06-27

Description

June 27, 1950 E. GoTTLlEB FOLDING COT OR BED 5 Sheets-Sheet l INVENTOR.

Filed July 5, 1947 June 27, 1950 E. Go'rTLlEB FOLDING coT 0R BED 3 Sheets-Sheet 2 Filed July 5, 1947 INVENTOR.

June 27, 1950 E. GoTTLn-:B 2,513,167

FOLDING COT OR BED Filed July 5, 1947 3 Sheets-Sheet 5 Patented June 27, 1950 UNITED STATES PATENT OFFICE FOLDING COT OR BED Edward Gottlieb, Brooklyn, N. Y.

Application July 5, 1947, Serial No. 759,090

3 Claims.

This invention relates to new and useful improvements in folding cots and beds.

The invention more particularly relates to a folding cot or a bed which is provided with a pair of pivotally connected crossed legs at one end and a single leg at the other end. Cots and beds of this type are folded by lifting the end with the single leg and swinging it around over the end with the crossed legs. Heretofore the linkage used in automatically folding the legs when the cot or bed was folded closed, projected above the mattress supporting surface of the cot or bed. The height of the mattress was relied upon to support a person above the projecting links to prevent injury. However, in a short time the mattress sags and then the cot or bed may be dangerous. Men may be ruptured by sitting down unintentionally on the linkage. Women may also be seriously injured.

It is an important object of this invention to avoid projecting any operating linkage above the mattress supporting surface of the folding cot or bed.

Another object of the invention resides in so constructing the connecting linkage that the folding cot or bed when in an open position will be locked open so as not to accidentally close when a persons weight is placed on any point on the cot or bed.

Another object of the invention is to so construct the cot or bed that it will not sag or bend at the center under a persons weight while in an open condition.

It is a further object of this invention to construct a folding cot or bed embodying the advantages outlined above, which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a ma- Fig. 5 is a transverse sectional view taken on the line 5--5 of Fig. 4.

Fig. 6 is a fragmentary enlarged transverse vertical sectional view taken on the line 6-6 of Fig. 1.

f Fig. '7 is a fragmentary horizontal sectional view taken on the line 'l-l of Fig. 2.

Fig. 8 is a fragmentary enlarged transverse sectional view taken on the line 8-8 of Fig. 2.

Fig. 9 is a side elevational View similar to Fig. 2 but illustrating the cot or bed in a partially folded closed position.

Fig. 10 is an elevational view similar to Fig. 9 but illustrating the cot or bed completely folded closed.

Fig. 11 is a fragmentary plan view of a portion of Fig. 10 looking in the direction of the line II--II thereof.

Fig. 12 is a front elevational view of Fig. 11 but illustrated with certain front parts broken away to disclose underparts., j

The folding cot or bed, in accordance with this invention, includes a mattress supporting frame I5 having a horizontal U-shaped head section I6,.a horizontal U-shaped foot section Il,

a pair of horizontal central arm sections I8 between and pivotally connected with the opposed ends of the arms of said U-shaped sections IB and I l, and a flexible mattress support member I8 mounted between said sections I6, I'I and I8. The head section I6 is pivotally connected with the central arm sections I8 with pintle rivets 20. The foot section I'I is pivotally connected with thecentral arm sections I8 with pintle rivets 2|.

The sections I6, I'I and I8 are formed from angle members arranged with one of their arms horizontally at the top and extended inwards, and the other of their arms outside and extended vertically downwards. The central arm sections I8 are setupon the ends of the arms of the U- shaped head section I6 and the pintles- 20 are engaged through the adjacent vertical arms of the angle members forming said sections I6 and I8. Thel ends of thearms of rthe U-shaped foot section I 'l are set upon the adjacent ends of the central arm sections I8 and the pintle rivets 2| are engaged through the adjacent vertical arms of the angle members forming said sections II and I8. Y

lMeans is provided for limiting downward pivoting of the horizontal central arm sections I8 in relation with said .horizontal U-shaped head sectionV I6 and for limiting upward pivoting of said horizontal central arm sections I8 to right angmsginrelatiop tosaid horizontal u-snapaiv head section I6. This limiting means comprises notched-out portions 24 formed in the top arms of the angle members forming the central arm sections I8. The edge portions of the notches 24 rest upon the end portions of the arms of the U-shaped head section I6 and in this way the central arm sections I8 are limited from pivoting downwards. The notches 24 are so designed that, the. central arm sections. i8 may pivot upwards to positions at right angles to the head section I8 and then the edges of the notches 24' strike the top face of the head section IB, as clearly illustrated in Fig. 12.

Means is also provided for limiting downwardpivoting of the horizontal U-shaped foot section I 'I in relation with said horizontal central arm sections I8 and limiting upward pivoting. of said horizontal U-shaped foot section I'I to right angles with and in relation to said' horizontal central arm sections I8. This means comprises notched-out portions'25'formed in thetop arms of the angle members formi-ng the U- shaped' foot section IIL The edge portions of the notches 25 rest on the edge portions of the central arm sections I8 limiting downward-A plv#vr oting of the foot section I'Ilv in relation with said horizontal central arm section-s I8. "ll-her foot section I1 may Ipivot upwardsto rig/ht angles in relation to said horizontalcentral arm` sections I8'rv in which positionsV the edges of the notches 25 will strike thev top facesl of thecentral arm sections IB, as clearly illustrated in Fig'. 12".'

Said exible mattress support member' |91 may be of any design and construction. It illus'- trated as a sheet of canvas or other clothV ma? terial` which is mounted betweeny the sections IG-, IF and; I8V with a plurality oiisprings 2T con# necting the edge portions of said slieet withjth'e top' arms of the angle' members forIn-ingf the sections I6', I'I- and P91" A single leg 28\ piv otally connected with said footY section Ilf at aI point near itsL outer' end' and' extends downwards. This single leg,- 28 is of' Ueshape hav;- ing a il'at` bottom portion 29 which rests on the noon. and arms 3'I' extending upwardly andpivotally connected'bypintlesw to the inside faces of the vertical arms oik the angle members forming, the foot section I'I.A

A pair .of pivotall'y connected, cross legs '3221: and 33 have the inner ones of' theirk top ends pivotally` connected with said head section I 6- nearsaid central arm sections F8 with saidpintle rivets 20 which are also used`r to pivotally con'y nect theA head section I6' with thej centralarm sections I8. The outer' ends of the crossed legs 32 and 33v have their top ends; slidablyconnected'- with the head sectionv IS byL pintle' sliderivets 34 slidablyf'engaging in'- sl'otsl 35i-formed' inthevertical arms or the Aangle memberv form'i ing the headV section I6.' Theseslide rivets" 3@ and slots 35 vare neark the' outer end ofthe headAA section L6.; The leg 3%" isl or Iii-shape'havingl a flat bottomv 36E andside arms' 3'Ii` It1 is con'-l structed' of angle material arranged withfonel of its arms verticall and at v,the out posi-tion; andi the other of theirl arms extending 'inwards and' at the down position; The leg 33; is also of` UL shape having a relatively-v at bottom 39r and side arms 40. The legI 33 is formed of flat ma: terial. The sidearms 3l' and* 40 ofv said

legs

32 and 33 are pivotally' connected withv each' other withpintles 4I. Casters, 42 are mountedv upon' the bottom portions of the'v crossed legs' 32" and"3,3 andnormally rest on the ground; An angle memberbrac'e 43'is mountedfbetween' the side arms 3l of the leg 32 at a point between the pivots 4I and the slide rivets 34 for reinforcing the leg structure. The upper ends of the side arms 31 are disposed adjacent the inner iaces of the vertical arms of the angle member forming the head sections I6.

Stretcher rods 45 positioned below the top of the mattress support frame i5 pivotally conneet with the slide rivets 34 of. said leg 32 and pivotally connect with oney of the sections of the frame I5 other than section I 6, at a point in the vicinity of the pivot points of said sections il and I 8. More particularly, the stretchery rods 45 pivotally connect with the central arm sections I8 by the pintle rivets 46. The central arm sections I8 have end portions 4l adjacentthe; end of the foot section I'I bent downwards, for example see Fig. 4. The pintle rivets 48 are mounted upon these down bent ends 4l. The pintle rivets 46 are located short distances beneatl'r the pintlesV 2i so as to lock the central arm section-s: I8.Y with respect to the head section I6 when the. cot or Ibed is'. in the open position Aas illustrated in Fig. 2*; A U- shaped Ibra-ce 49 rigidlyl connects the said.r cen-y tral? arm sectionsi I8. This brace 49 is1 formed' from angle.I material. It. has a relatively datv bottom. 58. andi side arms 5I. The side arms 5I extend' upwards and engage the inner faces of the'sid'e arms of the angle material' forming the central armf sections l'and.' are welded at these points. to: said central' arm sections I8'.

Ti'e'rod's1-5'3 are disposed' below the top of the mattress support. frame I5 and' are connected with said centrallarm-sections. I8; more specifi'- cally; with the downturned end portions 41' thereof, withC pin-tlerivets, 54. The tie rods 53: extend.4 towardsv the single leg 28` and are piv. otally connected therewith with pintle rivets 55. In order tok prevent Ibinding of the parts washers 56' are engagedu'pon the pintle rivets 551'between the tie rods 53. andv the single legV 28.

Washers 5'I are engaged upon the pintle 54T be-4 tween thel downturned ends 4'! and the tie rods 53'. The downturned ends 4l are formedv with notches 581 formed irrone of the arms of' the angle materi'aifrom which the central arm sectionsl P81 are made, so asto provide room for the tie rods 53 to pivot during the closing of thel cotor bed?. The end portions 530i the tierods 53' arey suitably bent or oifset so that the tie rods 53 may extend upwards along the sides of the downturned end portions 41, as for example illustratedfin Fig. 9, during the folding opera tion of the bedlv Washers 60 are engaged on the pintlerivets 46 between theend's of the stretcher rods 45" and the downturned portions 41 of the arm sections I 8. Moreover. the end portions 6I oi" the stretcher rods 45' are bent outwardly (see particul'arly-r Fig. 3) sor` as-v to make room for thel moving ofthe-stretcher rods 45 when the cot or l-loed isJ folded' closed. Washers 62 are engaged upon the pintley slide rivets 34 betweenthe upper ends of" the-leg 32- and theY vertical arms oil the angle member forming the head section IS. Washersy may also be engaged at other points, ybut only the more important points havebeen clearly speciedl Resilientmeans is connected between the lbottom end portions ofthe crossed legs 32v and 33'l for assisting in opening thefolding cot or' bed after 'it' has beenV closed. This resilient means comprises angle members B5 pivotally connected' byv pintles 64 with the bottomportions ofthe side arms 40 of the leg 33. Tension springs BSI are connected with the angle `members 65 and with brackets 61 mountedv upon` the side arms 31 of the leg 32.l Casters`68 laremounted upon the `outer ends of the head'section I6 and foot secti-on I'I. The outer ends of said sections I3 and I'I are, also providedl with a latch compris'- ing a headed stud 69 mounted' upon the head section I6 and cooperative with a pivotally mounted bolt 'l0' mounted on the foot section Il. 4'Ihe bolt 'I0 is pivotallyrsupported with a pintle II (see Fig. 6). The outer end of the bolt 'Hly is provided' with a bayonetslot 'I2 en# gageable on the Vheaded stud 69 forl locking the cotor bed closed. l

The operation of the folding cot and bed may be understood from the following: j

In Figs. 1 and 2 the cot or Ibed is 'shown in'its open position. It may be folded closed by manually gripping the foot section I1 .andv pivoting it upwards until it assumes a position atright angles to the central arm sections I8, as illustrated in Fig. 9. This automatically folds closed the single leg 28. Then the foot section I1 is further` moved so as to cause the central arm sections I8 to pivot upwards'handtso as to dispose the foot section I'I above the-*head section I6, as illustrated in Fig. 10.` During. this motion `the stretcher rods d5 `will automatically move the slide rivets 34 alongV the slots 35 and fold closed the crossedlegsr32 and 33. The latch bolt is nowengaged-onthe headed stud 69. Itlshould be understood-that a mattress, not illustrated, for the folding bed orcot may be tied to and remain thereon while it is folded and will assume a position in the space loetween the foot section I7 and head section I8.

For clarity of illustration the single leg 28 has not been shown fully lclosed in Fig. 10. It may be squeezed downwards into a lower position substantially into the plane of the foot section Il. Similarly, the

cross legs

32 and 33 are not illustrated fully closed. Pressure may be applied upon the top of the cot so as to fold these legs further so that they are substantially in a common plane with the head section I6. In the further folded position of the crossed

legs

32 and 33 the members 65 and springs 66 will assume positions substantially across the pintles 4I locking the

cross legs

32 and 33 in a closed position.

The bed or cot may be reopened by first opening the latch bolt I0 and then pulling upwards on the single leg 28, and nally lifting the foot section Il to pivot it upwards so that the central arm sections I8 turn back to their horizontal position, as shown in Fig. 9. When the parts assume this position the crossed

legs

32 and 33 will automatically open. During this motion it may be necessary to pull upwards on the foot section I'l and -slightly shake the cot to cause the folded crossed

legs

32 and 33 to drop slightly downwards, or the operator may step with one foot on the crossed legs 32 while pulling upwards on the foot section I'I so as to force the crossed legs downwards out of their locked position. Immediately the springs 66 will assist in opening the crossed legs to their full positions. Finally, the foot section I1 is dropped downwards to its horizontal position which automatically o-pens the single leg 28 and now the cot is again as illustrated in Fig. 2.

An important feature of the invention resides in the fact that the stretcher rods 45 and the tie rods 53 are below the mattress supporting surface of the mattress support frame I5. For

this reason ino matter how badly'a mattress on the 'cot iorbedlsagsor becomes worn-there is no possibility? of la. person-sittingdown on upwardly projecting parts which might cause injury. A nother important feature ofk the vinvention `resides in the specific arrangement vofthe centralarm sections I8 'and the stretcher rods 45`iand tie rods 53. ThisA arrangement is such-v as fto lock the parts in their open positions resistingfdownward sagging at the center of the cot 4or bed while in the open position.A The cot or bed can onlyy be closed bylifting the outer endsfof the foot section I1 o'r the head section I6, or bothA simultaneously, butthe cot cannot be closed by downward pressure at its center.

While I have illustrated and described the 'preferred embodiment of myinvention, it is tobe understood that' I do not'limit myself to the precise construction herein' disclosed andthe right is reserved 'tof-allfchanges and modifications coming within the fscope of the invention as defined in the appended claims; l f l Having thus "described .my` invention, whatI claim'as'mew' and desire to' secure by United States Letters Patentis:

1. Injalfolding cot'or bed,"a mattress'support frame having a 'horizontal' U-shaped head section; a horizontal U-shaped'foot section, a pair of horizontalfcentral arm sections between and pivotally connected'with the opposed end's of the arms of said U-shaped"sections`, and a flexible mattress support member mounted between said sections, means for limiting downward pivoting Ofsaid horizontalfcentralarm sections in relation with'sa'id horizo'ntaIU-shaped head section, means for limiting downward pivoting of said horizontal U-shaped foot section in relation with said horizontal central arm sections, a single leg pivotally connected with said foot section at a point near its outer end and extending downwards, a pair of pivotally connected crossed legs having the inner one of their top ends pivotally connected with said head sections near said central arm sections and having the outer one of their top ends slidably connected with said head section near the outer end of the head section, stretcher rods below the top of said mattress support frame in order that persons sitting on said cot or bed cannot possibly be hurt by said stretcher rods projecting above said mattress support frame, and said stretcher rods being pivotally connected with the slidable end of said crossed legs and pivotally connected with one of said sections other than said head section at a point in the Vicinity of the pivot points of said sections, and tie rods below the top of said mattress support frame in order that persons sitting on said cot or bed cannot possibly be hurt by said tie rods projecting above said mattress support frame, and said tie rods being pivotally connected with said central arm sections and with said single leg at points below the pivots of said sections. d

2. In a folding cot or bed, a horizontal mattress support frame having three adjacent horizontal sections in single rile and in end alignment with each other, said three sections being designated first, second and third,- respectively, from one end of said single le to the other end, means for pivotally connecting together the adjacent ends of said adjacent sections, means for limiting pivoting of said adjacent sections downwards from said horizontal position, a pair of pivotally connected crossed legs beneath said first section and having the inner end of their top ends pivotally connected-'withssai nrs i seetiom ata@ ness' said second sections ondchaying; theouterfonef, of their-f top; ends-simonly: connected withssadzfxrst seetiomnean tneouterf endstlreroofa eodxstreteher rodsrfonf closingsy saidv orosodaless;:whenssadeseos ond; andi third seetonsfaref @Metodi-onwards relate duetto; saidfrstseetiomsaid stsetener rodsv beine pit/:otaliy connected, with thefsldeblefend of seid crossed; legsfandA pivotallssoonneetedtwitte one of said; sections other than; s-eidirst-seetioosond sais stretcher. rods beine; below-x the ton et; seid mattress sunpostieeme wleile-fssidiramefis; its horizontal-.position erden that; persons sitting emsaidrootor bedioannottnossiblsfbeiflslirtbaseid stretcher rods projecting abou@ saidv mattress supportiromef.;

3: Ina ioloineoetsosbed; othorioontetmottsess sonnent frame: hay-mea ediaeoent horizontal seetionsv in single: filefand/ end; alienmentwith eaehtothet; said' tbr ee seotons loting; desienated 11net. seeond and ttmsd.Y respeotiyeiyeiimm; one; end of said single Iile to the other onmmeenstos pvotally eonneetinsf. togethetvthe ff adiaeent ends os said adjaeentfseetionsemeensffois limitinesnivs oting of said adjacent seionssdnwnwsdse from said;horizeritaliposition, een 'r offinisotella oonnetted crossed.leesfbeneatlrsod rstzseotioorend' having the; endottleeir top. .,-ndspsoteiis connected with; said`V rst. section at at seidzseeond section; and havinszthef enter one'ofthe-r ton ends siidaleiiz:A oenneotedi withy said;A irst seotio-is mean the@` entes end theeeot; sts-.atmen resistor clos-ina said crossed less; when: saisis sees ond and third-.seotionsfate piyoted: upwards telas tive toesaidf-irstfseetionf,d saidistretoher rodslee.

iniepitotollt'f oonneeted with the.- sldable end of seid., crossed, lees and. pivotallwoonneeted with one off; said section-sf other.` than Said* first, section', and: said stretcher rods being below the: top. of said mattress support, trarne whilev said -flalrlloL is in; its horiZQntal position in orderthat, persons sitting. on sadgootorbed cannot possibly, be hurt saidstretcher rods projecting abovesaid mattress. Supportbframe, a single, leg pivotally connected with, said third. section andv extending downwards, andltie rods for closing said single 119g` when,y saidl secondandgthird sections are pit/- o tedv upwards relativey to, said rst. section, said tie rods being pivotally connected Withsad, seo,- ond section and with said single leg at points below the pivotsy ofl said sections, and, said tie rods, being below thel top of said mattress supportiramein, order thatpersons sitting` on said ooit; or, bed cannot, possibly be hurt by seid; to rods. projecting. above soldi mattress support frame..

EDWARD. G20.5I"1.',LI,E.1.3l-v

ItEFERENCES CITED The, following/ references. are., of record. in; the

` filev 0f thisvpatent;

UNITED STATES PATENTS;