US1780792A - Convertible single or double bed - Google Patents

Description

Nov. 4, 1930. w. LEwls v 1,780,792

CONVERTIBLE SINGLE OR DOUBLE BED Filed Sept. 2, 1927 2 Sheets-Sheet l NOV. 4, 1930. w, LEWIS 1,780,792

CONVERTIBLE SINGLE OR DOUBLE BED Filed Sept. 2, 1927 2 Sheets-SheetA 2 Patented Nov. 4, 1930 WILLIAM LEWIS, OF UTICA, NEVI YORK 'ooNvERrIBLE SINGLE on DOUBLE `Bru) A Appiictiqn sied september 2, i927. semaine. 217,115. g

This inventio-n relates to a convertible single and double bed involving the use of separate mattress-supporting frames, one 'of which is nslidable horizontally j upon the other, and separate spring`-v mattresses for said frames, one of which is hingedly con-v nected to the main fra-me to swing from the extended sliding frame toa position above the other mattress and vice versa.

The main object is to provide a bed of this character in which the sliding frame maintains approximately the saine level slightly below the other frame in both extreme positions of adjustment and to enable themat-v tress for-the sliding frame to bemoved in dependently thereof from an operative position on the slidingtrame to an inverted position in superposed relation to theother mattress ,to form a single or double bed and to enable the coverings -or both mattresses to'be concealed betweenl themfwhen the mat'- tress for the sliding frame is adjusted over and uponthe other mattress to forma single bed or couch.

both trames-separate from Veach other is to maintain the 'resiliency vof each throughout its area without affecting theres'iliencyof the other mattress when the 'frames are rela#A tively adjusted for-use as a double 'ortwin bed and also to obtain the combined -resiliency of `both mattresses whenk placedV one upon the other forguse asa single bedlor couch. f

A further object is to-Ymake the mattresses of unequal resiliencyso that onemay be used for lighter weights and the otherfor heavier weights'. t

40 parts of the bed will be brought outvin the following description. l i ,Y

i In the drawings:- j Figure lis avperspective view cfa cronvertible single andfdouble bed embodying thev various features ofgmy invention ad- Vjustved for use as a single bed or couch, the

dotted-'lines' indicating the sliding frame'v asv extended for use. -v Figure 2 is an enlarged transverse verti# @o cal sectional view taken inV the `plane of line The object in makingth'e mattresses forV Other objects and uses relating to 242, Figurev l, the dotted linesjindicating l Y the sliding frame" with the" mattress thereon adjusted for use asa twin ordouble bed.

y Figure 3 is an enlarged detail .sectionalV i view taken in the plane of line 3443, Figure 2. I

l Figure lt'is an enlarged longitudinal "ver-4 tical sectional View, partly.` broken( away, taken on line 4 4, Figure l.

Figure 5 is .an enlarged'detail sectional view of a portion of one of the posts and one of the adjacent supportingstraps for the mattress of the sliding frame showing the sliding pivotal connection-betweensaid mattress and the main frame for the other mattress, the

iii the form of square tubes.` i Y Y Y Figure 6 is `an enlarged horizontaljseo-V tional View throughv the portion of thejbed taken in the planeor"v lowerfright hand lined-T6 Figure4,ex'cept'that'the sliding frame is drawn outwardly tothe limit of its outward movement and`v portionso'f both trames are 'broken away;

Figure 7 is an enlarged perspective vview of the lower right hand cornerofthe main: traine -sliown'in Figure`4 showingmore:par`4 c ticularly the adjacent guideV r'ails'lfor "the n of the attaching' sliding frame Vvand one straps for the mattress frame, the cornery posts square tubes. r Y j As illustrated; this bed for zsaid j sliding posts being, in this instance, j

' being i shown .as

. frame --l--,Y al supporting z frame '-"-2-, L and separate spring mattressesf-3-` and together with lsuitable connections between the mattress and fr aine #l-n to permit s aidl mattress to be movedto and fromy a position in superposed relationitothe"niattress -'3- without disconnecting ity from explained.

` The `main' frame-l-A is substantially rectangular in top plane and coinprises`op-- *Y i posite parallel'side rails andopposite end rails-S- together with suitable corner posts *#7-V all of whicharepreferably vina'de of angle irons rigidlyv fse the corners. The side rails -'5-' a cured i together at re arranged with 'comprises amai'n v -saidframe as will` behereinafterj-.more iully their angles at the lower outer edges ofthe frame so that two of the yflanges will be disposed in vertical planes while the remaining flanges will be disposed in a horizontal plane Y lextending inwardly from' the first named flanges. y a

The end flanges are arranged with their l anglesat the upperouter edges of the'ends ofthe frame with two of the flanges disposed in vertical planes and the remaining flanges projecting downwardly from thelu'pper-edges *ofy the horizontalflanges which overlap upon 'Y the horizontal flanges of the lengthwise -rails and areriveted or otherwise rigidly7 secured to the underside thereof.r f'

The posts are arranged with theirV f angles at Vthe corners so thattlie overlapping Vportions of the side and end rails are seated againstthe inner faces of theV flanges'Y of the posts with their upright vflanges riveted or otherwise secured to said posts someV distance fromv the lower-, ends thereof to forni. afrigid .unitary frame structure as shown more clear- 4-lyin Figures 3 and 7, f

, The lower Vhorizontal flanges of f. theV side l rails are. connected by a series of slats l f8- of spring metal arranged in uniformly "rails and riveted orotherwise securedtherespaced'parallel relationlengthwise ofthe end "The-upperflanges of the end rails -6- are l' springymetalarranged in uniformly spaced '-slats saidslats being riveted o'rother'V Y d also .injsupp'orting the mattress The parallelirelsation transversallyrofthe frame y preferfal'ilyv extending i under i the.` 'cross wise securedltothefendirails and are also end faces of lengthwise rails 5w are disposed in the sameverticalplanes as the outer faces i, of the Y outer flanges of the end rails `while the endfaces of the end rails arel disposed in substantiallythe same planeas the' outer' faces. of the side railsisothat the( corners ofthe a frame g mayl yfit'- snugly and when` riveted together-'in thejmanner described establishesVv` 'rigid connection bev-Y tweenfthe postsfand'frame. Y, l Y c As showniin Figures l'ito 6 inclusive sui t:

, ablebraclrets 9+ lare Ariveted 4cir-otherwise secured to the A inner vfaces' of cornerfposts to project inwardly v'toward xeachother Y Y from the ends Vof the; frame in planes just ysupporting fagpair o-f'guiderails l0-"which flanges ertending .inwardly from the before named flangesto form supports for the' supplemental vframe -2- presently described.

This supplemental frame -2- is also rectangular and ofy approximately the samev under main frame -l-' and also to and from a position mainly at the front side of main frainejy the guide rails -l0-- being parallel and preferably made in the form ofangle irons arranged soth'a't two ofthe flanges will be ina horizontal planel projecting toward each other fronitlie remaining flanges as shown in Figure 4.a y

As illustratedthis ysupplemental orsliding i frame 2f-comprises opposite*V frontand rear parallel lengthwise .irailsvllkand +12- and opposite endrails riveted or otherwise secured together inoverlapping relationvat the rcorners to form a rigid-,unitary structure, l

These railsffjl'l-ilQ-,and are Y preferably made of angleiron's theffront and rear rails beingiarranged v,with their outere most flanges disposed in vertical planes and; their remaining flanges projecting inwardly in horizontal planes butin reverse orderV while the end rails -.,-13- are-preferably are ranged with their outermost flanges disposed in vertical planes and their innermost flanges.

projecting planes.

aco

-jllfand E912# areVL disposedl in substan-v A tially the same horizontal planebut the over;V

tical flanges ofthe front railk extends upc wardly to forma limiting lstopgcooperating with" the front vrail of themaini-fr'ame for limiting lthe innerward sliding` movement of the supplemental or, sliding frame whil'ethe vertical jflang'esfof the rear rail-f-12 prforjectingf-downwardly Vfromv Avthe lhorizontal flanges to forma limitingstop cooperating with'stop pins-v-flll-Von' the front endsof 'thel guide rails-10- as shown in {Figure-s, n f `6,andf7 for'vlimitingthe outward movementyy y in `the angles'V of the postf-,ff-'f-*as .shown 1 more clearly in Figure lthus permitting relay Vtively broad bearings for the postv and frame f frame is providedwith resilient bottom" comparallel cross slats lf ofl spring -nie'talV rivetedor'o'th'erW-ise secured to thelengthwise slats at the crossing, saidfslatshaving their; ends riveted orotherwise secured ,l to the end yrails an'dto the side rails. 1- g` The lfront rail l1-aofthe,slidingf-iame w2M is providedy near its Yends with; down.

.wardly extending legsf`.-,17-'zj havin-g their;

upper ends riveted or otherwise securedjjto` said vfront rail and their llowerfende;prof vided with castersfI-e-llfgadapted tdfroll rupon the.1110erV toioopret With theigulde l rails -10- in holding the sliding frame in a substantially horizontal plane when adjusted for use.

The mattress -3- is of substantially the same length and breadth as the slat bottom of said frame between the upright anges of the lengthwise side rails -5- which serve to hold the mattress against forward and rearward displacement and permit it to be readily removed from the frame when desired by upward displacement.

As illustrated this mattress -3- comprises a pair of similar rectangular wire frames 1Q- and -19"- extending around the marginal edges of the mattress and having their opposite sides and opposite ends connected by a system of lengthwise and transverse wires crossing each other at right angles in spaced relation to form resilient supports for a system of coiled springs -20-.

The construction of the mattress -4- is somewhat similar to the mattress --3-- in that it comprises a pair of rectangular marginal wire frames --23- and -24- having their lengthwise sides and ends connected by cross wires forming resilient supports for a system of coiled springs -25- which are interposed between the cross wires of the lower and upper frames 23- andl Q4- yieldingly holding them in normally spaced parallel relation.

It will be noted, however, that the ends of the frames -23- and 24- are connected near one of their lengthwise sides by 24- to hold those portions of the frames ,in fixed spaced relation and also to formV suitable support for a pair of hinge straps These hinge straps -28- are riveted or otherwise secured to the intermediate portions of the braces -26- at opposite ends ofl and between the frames -23- and -24- to extend slightly beyond the corresponding edge of the mattress for vreceiving and supporting a pair of pivotal studs -29- carrying suitable rollers -30- which in turn are movable in vertical guides -31-- on the front side of the main frame -1- near the front corner thereof as shown more clearly in Figures 2, 3 and 5.

When the posts -7- are made of angle virons the` guides 3lwill also be made of square tubes in which case the guide slot -31-- may be formed in a separate U- shaped strap or bracket S2- having its ends secured Vto the face of the square post -7 as shown in Figure 5 or in some instances the guide slots -31- may be formed directly in the inner walls of the square y posts -7- as shown in Figure 7.

In each of these modifications the straps -28- and studs -29- together with the slotted guides constitute vertically slidable pivotal connections between the mattress mit said mattress to move vertically and also to swing from a horizontal position* directly over the mattress -3- to an inverted position beneath the mattress to a positionA mainly at one side thereof and vice versa,

the corner posts adjacent said'side of the main frame being provided with vertical` slots Wholly Vabove the supplemental frame, and an additional mattressl provided with pivotal pins slidable vertically in said slots and having pivotal connection therewith to permit the additional mattress tobe moved vertically relativelyv to and independently of the first named mattress to a position at one side thereof directly over'the supple- Ifnental frame when the latter is extended or use.

In witness whereof I have hereunto set day of August, 1927.

my hand this 22d c WILLIAM LEWIS.

In some instances the posts may be made the latter is extended Y iso

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