US2395699A - Operating means for inclinable mattress sections - Google Patents

Description

Feb.-"26,11946. M, T WLDO 2,395,699

OPERATING MEANS FOR INCLINABLE MATTRESS SECTIONS Filed Sept'. 2, 1941 4 Sheets-Sheet 1 3 v26"" 27 '53 2* v ,MIZ-* Z ECS',

Feb. 26, 1946.* M. T WALDQ 2,395,699

' OPERATING MEANS FOR INCLINABLE MATTRESS SECTIONS I Filed Sept. 2, 1941 4 Sheets-Sheet 2 M. T. WALDO Fak. 26,

OPERATING MEANS FOR INCLINABLE MATTRESS SECTIONS Filed s ept. 2. 1941 4 Sheets-Sheet 3 M. .T. WALDO F eb. 26, 1946.

OPERATING MEANS FOR TNCLINABLE MATTRESS sEcTToNs Filed sept. 2, 194i 4 Sheets-Sheet 4 m. mm 7 Patented Feb. 26, 1946 OPERATING MEANS FOR INCLINAELE MATTRESS SECTIONS Mabel Theresa Waldo, Chicago, Ill., assigner of one-fourth to Harold 0. Mulks, Chicago, Ill.

Application September 2, 1941, Serial No. 409,182

, 2 claims. (c1. 5-77) This invention relates to mattresses, and its objects are:

First: To provide a mattress with a separately i constructed section, adapted to support the head, trunk and arms of the occupant, that can be hingedly connected to the stationary part of the mattress in such manner that it can be inclined in a vertical plane, either for comfort, or to meet the needs of invalids or ailing persons.

Second: To provide a manually operative device for inclining and manipulating the inclinable section of a mattress constructed as above described, detachably connected to the mattress, and supported by a frame, detachably connected to the head board of a bed, which will yield a sucient mechanical advantage to render the inclinable section of the mattress easily manipuvlatable.

with the upper surfaces of the inclinable and stationary sections.

Fifth: To construct a mattress of the character above described in such a manner that it can be completely enclosed by a uid-proof covering when the inclinable section is inclined and when it is reclined.

With the above specified and other objects. in view, this invention consists: in the novel construction of a mattress that is adapted to be supported by a bed frame of ordinary construction, of two sections, in such a manner that one section that is adapted to support the head, trunk and arms of the occupant, may be inclined; and in the novel construction of a fluid-proof covering therefor; and in the novel construction of a hinge joint between the two sections of the mattress; and in the construction of a novel device to manipulate the inclinable section of.

the mattress; and in the novel construction of resilient members to support the. inclinable'section of the mattress; and in the novel construction of intermediate connectors, adapted to transmit motion from the manipulating device to the inclinable section of the mattress; as is hereinafter disclosed, described and claimed. It is my intention to claim not only the objects, uses and functions that are herein specifically described and enumerated, but also every object, use and purpose to which this invention and each distinct part thereof may be adapted.

In the drawings:

Figure l is a fragmentary longitudinal section, taken on the line I-I of Figure 2.

Figure 2 is a fragmentary plan View of the mattress and the manipulating device, partly in section.

Figure 3 is a sectional view taken on the line 3--3 of Figure 1.

Figure 4 is a perspective view of the frame, by

which the manipulating device is supported, clamped to the head board of a bed.

Figure 5 is a fragmentary sectional view taken on the line 5 5 of Figure 2.

Figure 6 is a fragmentary sectional view of the modified form of the transverse member 32.

Figure 7 is a sectional view taken on Athe line 'I-l of Figure 2.

Figure 8 is a sectional view taken on the line 8-8 of Figure '7.

Figure 9 is a sectional viewA taken on the line Y 9 9 of Figure 7.

Figure 10 is a sectional View taken on the lin ID-IU of Figure 2.

Figure 11 is a fragmentary sectional view taken on the line II--I I of Figure 2. o Fig. 12 is a perspective of the mattress in a closed position, enclosed in its cover. Y

Fig. `13 is a perspective of the mattress in an open position, enclosed in its cover.

Fig. 14 is a sectionalview taken on the line* I4-I4 of Fig. 12.

Fig. 15 is a sectional view taken on the line I5-I5 of Fig. 12.

Fig. 16 is a view of the apron which encloses the space between the stationary part of the mattress and the inclinable section.

Referring to the drawings in detail, the numeral I5 designates the stationary or main body portion of the mattress, and I 8 designates the inclinable section thereof. The upper head-end portion of the member I5 is provided with a recess, substantially equal in length to the length of the member I8, and to a depth substantially equal to the thickness of said member, and is adapted to receive and support the member I8, when said member is reclined, and the member I Iil is hingedly connected to the member I5 on the upper edge of the declivity of the recess formed thereon, as is shown in Figures 1 and: 1,1.

The width of the member I8, is substantially equal to the width of the member I5, and the length of the member I8 is substantially equal to the length of the recess formed on the member I5, and the member I8 is so shaped and dimensioned that its sides, head-end and upper surface are substantially flush, when it is reclined, with the corresponding surfaces of the member I5. The member I8 is connected to the member l5 by ahinge-joint that is formed of the series o transversely apertured lugs 2l that are attached to section I8, by any suitable means, and disposed transversely and substantially equdistantly, and that project longitudinally; and a series of transversely apertured lugs 29, attached to the stationary part l5, by any suitable means,

and disposed transversely and substantially equidistantly, and that project oppositely, to series 2=I and are so arranged in spatial relation to series 2l that the apertures in one series coincide with the apertures in the other series, and the projections of one series are received in correspond- ,inginterstices of the other series, and form thereby substantially a continuoussurface. The transverse bar I9 extends through the apertures in the two series of lugs and is compactly secured in ,position on both sides of the mattress, by any suitable means. f V

By this Vmeans the section I8 'may be rotated -on the rod I9 as its axis, within limits hereinafter stated, and a hinge-joint is thereby formed that is sufficiently stable and durable to withstand the stresses to which it is subjected, and Ylateral motion in the section t8 in relation to section I'5 is restrained.

Section I8. is supported by a rectangular Vframe `composed of two vlongitudinal members 22', 22 (one of which is shown in Figure 1)-, that-are con*- nectedV by any suitable means to the transverse members 22,22-, cross `sections of which are shown in Figure 1. The supporting rods 23, 23, with eyes 23', 23 integral therewith, are rigidly se- 'cured to an outer transverse member 22 of Athe frame. A transverse lifting member 24 -is `inserted through the eyes 23', 23', and is secured in position by a spring Cotter 24.' in order to provide'a means whereby the member 24 caribe readily removed, and the manipulating-device lcan be ldetached from section I8.

A bed frame I6, constructed Ain the ordinary manner, supports the mattress I5 by transverse members 3|. In 4order'to prevent the'stationary part of the mattress from being `mcvedwlfien section I8 isbeing inclined, the part I5 is -se- -cured t'o the frame I6 by straps 6I. Theghead board I1 of the bed is connected to the frame by any suitablemeans.

To the head board I1 of the bed, a rectangular metallic frame -35 is secured by brackets 31, 31, 31, and wing nuts 38, 38, 38. The frame consists of two upright vmembers 41; 41 that arecon- 4'nected by the hinges 5|, y5I to the upper transverse member 48A of the frame, and are detach- Yably connected to the lower transverse member I50 by the tenons `55 and 56, and secured thereto by the rods '53` and 54, or by any 'other suitable means.

The interior sides of the vertical members 41, 41 ofthe frame 35 are mortised, vas shown at 58, 58, to engage thereby the tenoned ends of the .vertically operative member 32, whichis apertured annularly, and interiorly threaded at 29, as is shown in Figure 5. The vertically-operative'member 32 comprises a :cross-shaped and vinteriorly threaded nut 29, which Ais threfadedly 'connected on either side to adjustable and detachable arms A screw shaft '35 is vertically positioned in the frame 35, so that its axis is substantially in line with the longitudinal axis of the mattress, and is journaled inthe upper and lower transverse members of the frame at 36, 36, as is shown in Figure 3. The screwk shaft 38 interpenetrates and engages threadedly the 'cross-shaped nut 29, in the vertically operative transverse member 32, as is shown in Figures 5 'and 6. The lower end of the screw shaft 3U is threaded at 33, as is shown in Figures 4 and 1, in order that it may be engaged by the worm 44, that is rigidly secured to the transverse driving member 43. x

. The horizontal driving member 43 is supported by vhangers 4I, 4I that form sliding rits with the brackets 4G, 45, which are made integrally, with the lower transverse member 50 of the frame. The hangers 4I, 4I are secured in position to the brackets 40, 4B by set screws 412, 42. Longitudinal motion is restrained 'in the transverse member 43, and said member is securedfin yposition by spring cotters 46, 4B. The'en'dyof the Ytransverse member li3 -is squared at '45, in order that 'it `may be engaged yby a socket -in a Wheel or'crank, as a prime mover. The vertically operative transverse member 32 from which, b'y means ofintermediate connectors, motionis transmitted to the lifting member 24 'that is 'connected to the inclinable section of the mattress, canfthus be manipulated by turning the prime mover.

The linkages 25'., l2li a're' pivotally connected respectively 'to the member 32, on veither 'side of the vertical member 30, `at points substantially equidistant from the axis of said member and vpivotally connected `to 'the transverse member `24. Each of the linkages 126', 26', comprises: a bar `251that is pivotally connected'to a lbar 21, at 26; and'leach is provided with an adjustable elliptical Aspring `63' that `is positioned between 'the interior surfaces. of the bars 25 and 21, as is shown on Figures 5,'8'and 9.'

Each of the springs 68 is constructed of two semi-elliptical leaves, that are joined `at their Aends `by longitudinal rivets 13, 118, which pass -through the leaves and'retaining washers 1-1, 11.. Annul'ar apertures are made in the joints iat' each end to receive the cylindrical rod 116. :A helical spring 19 is positioned around the 'member 16 between the headffl thereof and a retaining washer 11, at one end of each of the springs 68', and-between a nut 80 and -a .retainingvvasher 11 at the other end of each of the springs 68.

One'en'd of each of the members 16 is threadedly 'engaged by a nut BEI,V whereby Vthe tension ofthe spring 68' may be regulated and adjusted. Each ofthe elliptical'springsf' is :rigidly secured to a brace-68 by a bolt 1-l vthat passes through the Ilower 'leaf 1D and the brace 68, and is secured on the opposite side by a nut 12.V The braces 68, 168, are integrally formed with the -links v21.

The undersidesof the members 2-5, 25am-charnfered so as to formarced recesses therein, the length, width and ydepth of each of which is such that it is adapted to receive, substantially onehalfof'the periphery of the corresponding-'leaf '69,as shownin VFigure '1. i

Rollers 14, 14 are suspended by shafts 15, 15

Ythat extend between the downwardly projecting lugs or hangers 13,v 13, 13, 13` that are integrally formed on each edge of each of the leaves 59, 69, substantially at the apexes thereof, as is shown in Figures 7, 8 and 9. Apertures are formed in the members 69, 69, substantially at the apeXes thereof, that are adapted to allow segments of the rollers "I, 11i to project therethrough and above the apexes of the members 59, 59, so as to form rolling contacts with the members 25, 25 in the chamfered recesses 51, 51 thereof.

When section I8 is reclined the centers of the pivot pins 25, 26 lie substantially in the plane of the longitudinal axis of the members 35; and the longitudinal axes of the members 25, 25 are substantially perpendicular to the longitudinal axes of the members 21, 21, as is shown in dotted lines in Figure 1. The elliptical springs 68', 68' perform the dual function of rendering the linkage resilient and also of checking and retarding relative motion between the members 25, 25 and the members 21, 21, suiciently to transmit motion to the transverse lifting member 24 when the screw actuated elevating mechanism is manipulated. When the elevating mechanism is manipulated, the members 25, 25 are therebyT subjected to a stress, and each of the springs 58", 58 is compressed and moves in relation to the corresponding member 25 until its tension withstands the stress to which it is subjected.

Each of the upper leaves 69, 59 is provided with a roller 11i in order that it can readily move into such position. By turning the nuts 80, 80, the tension of the springs 68', 68can be varied and adjusted in accordance with the load that is being carried by section I8, and the axes of the members 25, 25 can be thereby caused to remain substantially at right angles to the axes of the members 21, 21, when section I8 is inclined. The springs 68', 68' will check and retard relative motion between the members 25, 25 and the members 21, 21, when the resilient linkage is being elevated and when section i8 is carrying any load that it is designed to carry, as long as the longitudinal axes of the members 25, 25 form substantial angles with a perpendicular. Thus by adjusting the tension of the springs 58', 68', so that the longitudinal axes of the members 25, 25 form angles of substantially 90 degrees with the longitudinal axes of the members 21, 21, the resilient linkage can be elevated as long as the angles formed between the longitudinal axes of the members 21, 21 and the longitudinal axes of the member 38 are substantially less than 90 degrees. The length of the member 30 is such that when the upper edge of the nut 29 is in contact with the upper transverse member 48 of the frame, that the angles formed between the longitudinal axes of the members 21, 21 and the longitudinal axis of the member 3!) are substantially less than 90 degrees.

In order to provide a means whereby all parts of the mattress may be protected and preserved in a sanitary condition, when the inclinable section I8 is inclined and when it is reclined, a covering I' made of any fluid-proof fabric is provided that is dimensioned to iit the mattress as a unit. The cover comprises a casing adapted to cover, enclose and fit the main-body portion of the mattress, and to enclose and t the recessed head-end of the main-body portion, and a casing adapted to cover, enclose and t the inclinable section of the mattress, the top of which is integrally formed with the top of the casing for the main-body portion of the mattress. A rectangular apron 52, that is made of the same ymaterial as the covering I5', with tapered ends, formed integrally therewith, and adapted to enclosefthe space between the section I8 and the stationary part I 5 when the section I8 is inclined, is detachably connected on its upper edge to the coverking I5 by a plurality of studs and grommets 62'. The lower edge of the apron 62 is secured to the covering I5 in a similar manner. ,Aperturesare madein the covering I5', suiicientto allow the supporting rods 23, 23 to project therethrough. The upper part of the covering I5', is secured to the inclinable section I8 by a plurality of studs and grommets 56. The lower part of the covering I5 is secured to the corresponding part ofthe stationary section I5 of the mattress by a plurality of studs and grommets 65. That part of the stationary section I5, that is adapted to support the inclinable section I8 when reclined, is beveled at 63,- on both sides and the end thereof, to form recesses into which the apron 62 can fold when the section I8 is reclined. The apposed'surfaces of the inclinable and stationary parts of the mattress are covered with coverings 63', 53', made of any suciently durable material. The mouth-end of the mattress is completely covered by the rectangularly shaped part 64 of the apron 62, as is shown in Figure 1.

Having thus completely and accurately described my invention, what I claim is:

1. Anarticulated mattress of the kind described comprising a main body portion provided with a recess on its upper head-end portion, adapted to receive and to support an inclinable section, an inclinable section hingedly connected to said main body portion on the upper edge of the declivity of said recess, and adapted to be received in said recess, and adapted to be rotated around said hinged connection, and so shaped and dimensioned, that its sides, head-end and upper surface are substantially flush, when it is reclined, with the corresponding surfaces of the main body portion, a frame to support said inclinable section, connected thereto, and connected with a lifting member that is adapted for engagement'with a manipulating mechanism, a hinged connection between the inclinable section and main body portion that comprises a series of transversely apertured lugs, transversely disposed, and projecting longitudinally, and secured to the inclinable section; which lugs are received between the interstices of a series of transversely apertured lugs, transversely disposed and projecting oppositely longitudinally, that are attached to the stationary section, and a transverse bar extending through the apertures in the two series of lugs.

2. A device of the kind described, for resiliently manipulating and supporting an inclinable section of an articulated mattress, comprising a rectangular frame composed of two upright members and two transverse members, and adapted to be secured to the interior side of the head board of a bed, and provided with mortises on the interior sides of its upright'members for engagement with the ends of a vertically operative transverse member, to restrain rotatory motion of said transverse member; a vertically positioned screw shaft journaled in the upper and lower members of said frame substantially in the center thereof, that interpenetrates and threadedly engages said transverse member, provided Vwith threads on its lower end for engagement with a transversely positioned screw actuating driving member; a two-bar linkage pivotally connected to said vertically-operative transverse member on l essere@ eaeh side of fsaid `vertically positioned screw shaft, substantially equidis'tant therefrom, anni pivotally connected to a lifting 'member Lsecured to the inclinable section Vof the mattress; lan adjustable elliptical spring positioned 'between the interior y'surfaces of 'the bars of each of said linkages, whereby the inclinable section of the mattress can be resiliently manipulated and 4supported by said link'agesg/the bar of each of said linkages adiacen't to said lifting member, being provided 10

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