US2807031A - Davenport bed - Google Patents

Description

M. FOX

DAVENPORT BED Sept. 24, 1957 4 Sheets-Sheet 1 Filed July 22, 1955 Sept. 24, 1957 M. Fox 2,807,031

' DAVENPORT BED A 4 sheets-sheet 2 lFiled July 22, 1955 3652 V7-f a Sept, Z4, 1957 l l MQ Fox l 2,807,031

. DAVENPORT BED Filed July 22, 1955 4 sheets-sheet s Sept. 24, 1957 n/n. Fox 2,807,031

DAVENPORT BED Filed July 22.` 1955 4 Sheets-Sheet 4 2,807,031 I DAVENPORT BEDv Martin. Fox, Chicago, Ill., assignor to The Seng Company, a corporation of Illinois Application July 22,1955, Serial No.` 523,774 2 Claims. (c1. s'1s) This invention relates to anx improvementin davenport bed. constructions, and in particular it relates to the type of davenport bed in which the. front sectionoi. a plurality of articulatedbed sectionsris inverted to serve as a seat frame in davenport position. v

The principal object of the invention is to.` provide. a davenport bed structure in whichf theI front bed section when it is inverted to serve as the seat frame. in. davenport position, is'irmlyI locked down by a rocking lockr and linkage arrangement. s

A further object isto provide adavenport bed, in. which thelock arrangement is operative even though a thick mattress and a considerable amount ofbeddingk are ou4 thev bed when itis folded. 4

The invention isillustrated in a preferred embodiment in. the. accompanying drawings, in which:

Fig.. 1 is a longitudinal. sectional view. of. a davenport' bed constructed in accordance with the invention with the articulated bed section. in` bed position, the bed sec.- tions and bed linkage mechanism being: shown; in elevation; Y

Fig. Zisa view similar to Fig. 1 onA an enlarged scale with the bed sections. in. an. intermediate. position which they occupy during movement from-bed-porsitionto davenportA position or the. reverse;

. Fig. 3. is a View similar to. Fig. 2 with thebed' sections in. davenport position; 1

. Fig. 4. is a fragmentary side..elevational` view of a -p.or-

tion of the. bed. mechanism. with the supporting linkageg eliminated. to. more. clearlyY show the look` construction; Fig,5 is a fragmentary'sectiontakenzas indicated. along thelineSr-Sof Fig..4; j v Fig.. 6. is a. side elevational. view otranenlargedscale.

of. the4 locking plate. used inl the. locking, mechanism; anda Fig. 7. isa frontelevationalvview of-.the lock-ingy mech:`

anism, viewing. Fig.. 6 from. the.- left.. Y Y

4Referring tothexdrawingsin. greater detail, antlrefer-y ring first. to Figs. 14,. inclusive, the davenPQlt. bed; off

thisfinvention is provided with a.woodendavenportrframe, indicated.. generally. at 10, said. frame ineludingga.l base portion. 1-1), back portion' 12, and arm.portionss13..1?he

base portionincludes a front rail'14, a back.rail;15,end: members. 16' and front and! rear feet 17 'andy ltlgifrespeef` tively;` Extending-upwardly. ati each.end, of the` front rail'v 14. is an arm. front.l member 19,` and at' each'end of ther back. rail 15 is an;- upright. backv end'frame member:` 20.2. Arm top frame pieces 21 extend from front towre'ar of.V

Patented Sept.. 24, 1957 ice tothe base: endy membersv 16 are a pair of front pivot p1ates29.

The. bed structure itself is formed of four articulated bedc sections 30, 31, 32 and 33 which are pivotally connected at 34, 35 and 36, the pivots for said connections bei'ngmounted in nylonbearings. Each of the articulated bed sections is formed in the conventional manner from angle members which. are riveted together, and a continuousv wire spring structure of conventional type (not shown) is supported in said bed sections. The front bed section 33 occupies an inverted position to serve as a seat frame when the mechanism is in davenport position, and Will therefore sometimes. be referred to hereinas the. seat frame. Transverse brace members 38 and 39 arev positioned adjacent thepivots 34, and about midway between the pivots 35 and 36, respectively, to resist twisting of the bed frame as. itr is folded or unfolded.

The bed sections are supported in the davenport frame 11k by meansv of apair of tri-pivot links 40 whichy are pivoted to support brackets 28 at 41 and have intermediate. pivots 42A andV pitman pivots 43. The tri-pivot links 40 are' pivotally connected to the rear bed section 30 by mea-ns of pins which. form the intermediate pivotsV 42 andinipale hollow bosses of pivot extension brackets 44 on the. bed section 30.` Pitmans 45 are connected' to the pitmanpivots43 on the tri-pivot links 40 and are pivotally connected tothe bed section 31 by pivots 46'Which are ashort distance` forwardV of the pivots 34 whichconnect the bed sections 3'0= and. 3-1.

A pair of supporting arms 47 are pivoted at 48 on the front. mounting` plates 29,4 and said supporting arms are bent at 49 so that in. bed position they extend further forward of the front rail 14 than they would if they were straight.. At the outer endof each supporting arm 47 isa. pivot 50 which provides the connection for a link 51 which. has its. opposite end pivoted to a bracket 52 on the bedI section 30. A tension spring 53 extends from each supporting'arm 47' to the adjacent pitman 45 to assist initial movement. of the mechanism from davenport position.

On. thebed section 31 immediately forward of each supporting. arm. 47 is a pivot 54 for a short truss link 54a` which has its. upper end alsoconnected to the pivot 50 on the supportl arm 47.- The truss link 54a cooperates with the link 51 and` thesupport arm 47 to form a truss linkage-which.prevents'collapse of the bed sections30 and 31 at. the pivot. 34.

Y Abouthalfway froml the pivots 54` for the truss links 54a to the pivots35 between thel bed section 31- and the: bed. section- 32.; are pivots 55ay for locking plates 55 which are. part' of the locking mechanism fortheV davenport-bed. As bestseen infFigs. 2, 32 and 4, the locking pl'a'te'SSY is. beneath the-forward portion of the'seat frame which isi provided by the-foot bed-section' 33=when thebed struc# ture1isin=thedavenport position of Fig.. 3.. Thelocking" plate 55-is designed to rockon its pivot 55a, andin order to provide)y the necessary rocking action as the bed secl tions are movedfrom-the intermediate position-of Fig. 2" to the davenport` position of Fig. 3 'an actuating link Sr for the locking plate 55 is pivotallyl connected ati 54C, to' thetruss link5'4afandV at'SSb to the locking plate-55';l

The pivotsV 35V betweenl the bed sections 31 andi 32,' also servegas mounting pivots for folding intermediate.

legs 56- which are connected together by astransverse-V 4cross brace 57` and. which are providedwith pivots 58.' for links 59h55 means of, whichthe intermediatelegs. 56

are Ilinked to thelocking.;y platesSS through pivots60-mul their'other ends pivotally connected to the bed section 32 at 64.`

Also connected to the pivots 64 are guide links 65 which have pivots 66 at their outer endsto make pivotal connection with latch( pitmans 67 whichV in turn are pivoted at 68 to the front bed section 33. The guide links 65 and latch pitmans 67 constitute the other major portion ofthe locking mechanism,` and cooperate in this rrespect `with the locking platesv 55. Mounted on the bed flame'Sl is a pair of angle brackets 69 to receive a front; trim board 70 which surmounts the front rail 14 ofthe base frame. 11 when Athe mechanism is in davenport position, as seen in Fig. 3. Spring covering fabric 7l ,extends loosely from the front trim board 70 to the end railg72 of the-front bed section 33 so that the davenportfcushions do not rest directly uponthe spring. At

sheet metal, and has a notch 78 one margin 79 of which is arcuate 4and the other margin of which includes a long dislled guide flange 80 which extends upwardly as a continuation of the rear margin of the notch 78. As best seen'in Fig. l, the notch 78 is upwardly open in hed position and the guide flange 80 is in an upright position,-while as seen in Figs, 3 and 4 in davenport position the notch 78 is faced generally forward, and the guid'llanges extends generally longitudinally of the Stl'ttt'ztureand` is engaged with a projecting stud-like portion 66a ofthe pivot 66 between the latch pitman 67 and the" guide link 65. Thus, when the mechanism is in davenport position as seen in Figs. 3 and 4, the latch pitman 67 extends downwardly from the seat frame 33, and the stud-like projecting portion of the pivot 66 is firmly engaged in the notch 78 of `the locking plate 55 `so thatr all the bed sections, and particularly the front bed section 33 which forms the seat frame, are firmly locked together. The guide link 65, pivoted on the bed section 32 and 64, assures that the stud-like projection Vonthe pivot 66 is properly positioned to be engaged by the'rlatch notch 78 as the mechanism is moved from intermediate position toward davenport position.

The operation of the locking mechanism is believed As the 'to be clear from the foregoing description. davenport bedmechanism is shifted from the bed posiv tion ofPg. 4l to the intermediate position of Fig. 2 the iside link 65 swings the latch pitman 67 from the genorally ,longitudinal position of Fig. 1 to the upright posi- 2 and positions the latch stud 66a adjacent the plate 55. On subsequent movement from the te position of Fig. 2 to the davenport posi- 3, as the bedsections 31 and 32 are folded them thai pivots 34,.the link 51 of the truss linkage and i `tlm Support Varms 47 cooperate to cause the truss links to accommodate a substantial amount more bedding and thickness of mattress than would be possible if, for example, the locking plate 55 were positioned more rearwardly, as in the location of the truss link 54a. At the rsame time, the locking mechanism can function Vproperly even though the upright camming flange 80 is not very long. In order for the locking mechanism to accommodate as great a thicknessof mattress and bedding with the locking plate 55 occupying the position now occupied by the truss link 54a it would be necessary for the camming surface to be a great deal higher than is necessary with the locking plate 55 in its present location. This added height is undesirable because of the fact that a person sitting on the edge of the bed may bruise himself on the upstanding end of the locking plate if it projects too high.

The foregoing detailed description is given for clearness of understanding only and no unnecessary limitations are to be understood therefrom, as some modifications will be obvious to those skilled in the art.

I claim:

1. In a `davenport bed having a davenport frame: a plurality of articulated bed sections including a foot bed section and a rearward bed section which are movable from a coplanar bed position to an intermediate position with said foot bed section inverted above and generally parallel to said rearward bed section; supporting linkage means mounting the bed sections in the davenport frame for swinging movement from said intermediate position to a davenport position folded in the davenport frame with said foot bed section serving as a seat frame; a latch member pivotally mounted on said rearward bed section at a point which is beneath the forward portion of said seat frame and spaced a substantial distance forward of said supporting linkage, said latch member having ian elongated camming surface which is generally upright in intermediate position and terminates at its lower end in an upwardly open notch; a latch pitman pivotally mounted on said seat frame, said pitman having a stud adjacent its free end; guide means connected to said pitman to locate it in an intermediate position with Isaid stud adjacent the latch plate; and operating link means connecting said latch plate to a portion of said supporting linkage means to rock said latch plate over the stud during said second movement.

2. In a davenport bed having a davenport frame: a plurality of articulated bed sections including a foot bed section and a rearward bed section which are movable from a coplanar bed position to an intermediate position with said foot bed section inverted above and generally parallel to said rearward bed section; supporting linkage means mounting the bed sections in the davenport frame for swinging movement from said intermediate position to a davenport position folded in the davenport frame with said foot bed section serving as a seat frame, said supporting linkage means including a support arm pivoted on the forward portion of the davenport frame and truss links connecting said arm to said rearward bed section and to another bed section; a latch member pivotally mounted on said rearward bed section at a point which is beneath the forward portion of said seat frame, said latch member having an elongated camming surface which'is generally uprighty in intermediate position and terminates at its lower end in an upwardly open notch; a latch pitman pivotally mounted on said seat frame,said pitman having a stud adjacent its free end; guide means connected to said pitman to locate it in an intermediate position with said stud adjacent the latch plate; and a link connecting said latch plate to one of said truss links to rock said latch plate over the stud during said second movement.

References Cited in the file of this patent UNITED STATES PATENTS 1,296,612 Bartlett Mar. 11, 1919 2,445,241 Pokorny et al. July 13, 1948 2,634,428 Fox Apr. 14, 1953

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