US1775672A - Folding davenport - Google Patents

Description

Sept. 16, 1930. w. J. DUVALL 1,775,672

FGLDING DAVENPORI Filed Mafch 17, 1926 2 Sheets-She et 1 Mum/v J. pal A4 4,

Sept. 16, 1930. w 1 DUVALL 1,775,672

FOLDING DAVENPORT Filed March 1'7, 1926 2 Sheets-Sheet 2 12' 28 14 13 40 saw. um & iw Q L 1 2 32 8 6 0 ff! to I 7 u j I 1a 24 25 48 :E g-- o 17 8 l I 5 V l/ l I l I 3 34 33 0 19 {Lumen/U015:

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Patented Sept. 16, 1930 UNITED STATES PATENT OFFICE ILLIAM. J. DUVALL, or s'r. Louis, lvrrssounr, Assrenoa ros'MIrH a DAVIS MANU- FACTURING COMPANY, or sr. LOUIS, MISSOURI, n oonraoRA'rIoNor MISSOURI edges of the collapsible sections will stand culty has been experienced in providing a romaine nnvnnronr Application filed March .17', 192e; *=s ria1 No, 95,247.

davenport size, and furthermore, it is importantthat when extended, the adjacent close together so that. there will be no gap or sag in the middle of the bed.

I In designing such a structure, great diflimovement such that onesection may-not only {Another object is to provide a construction be collapsed to a position over the other, but during the collapsed movement the outer section must not only clear the inner section but must clear the folded mattress as well when said mattress is placed upon the inner section. One of the objects of this invention, therefore, is to provide a folding davenport bed structure in which one section may be col lapsed upon the other in such'a wayas to,

avoid interference between the sections.

Another object is to provide such astructure in which the movement is such that the edge of the folded mattress is carried out of the way of the collapsing section.

which will be b'alanced in allpositions so as to be simple and easy to operate'andwhi ch will lowing description taken in-connection with be strong and rigid in either extended or collapsed position.

Further ObJGCtS Wlll appear from'the folthe accompanying drawing,in which Figure 1 is a perspective view partly in section of a davenport embodying this invention.

Figure 2 is a section on line 22, Figure 1,

the initial'movement of the collapsing sections,and

tions.

Referring now to the accompanying drawing 1 designates the back and 2 the end sup- -port of the davenport. Supported on suitably constructed of angle iron as illus-m trated in the drawings; A suitable brace 5 joins the end supports 2 along the front of the device while said supports are connected at the reariby the back, 1, thus forming a suitable supporting" frame.

The bedconsists of two sections which hereinafter. be designated respectively the front and the rear sections. The rear section comprises a frameTconsisting of a pair of end bars GEjoined by longitudinal front and rear bars7. This frame carries the springs 8 whichmay be of any suitable construction.

The front section comprises a similar frame consisting of end members 9 and longitudinalmembers 10 carrying the springs 11. A mattress consisting ofjseparate half sections 12 and 13 oined by a flexible web 14, is adapted to fold in the middle when the davenport is to be collapsed'as illustrated in Figure 2.

The rear section is supported in, extended position as illustrated in Figure 5 by a link 15,

pivoted atits lower end to the bar 4 and at its upper end to the'cross-bar 6. There are, of

' course, two such links, one at each end. While the links 15 support the rear of the rear. I section the front of the same is supported by a .pair of toggles 16. The front section is supported at itsfront edge by a collapsible foot 17 which will be more fully described later, and at its rear by a pair of links 18 1 pivotedat 19 to the bar 4 and at'2O to the bar 9. Thelinks 1'8 each'have fixed thereto by rivets 21,a short bracket 22 carrying a supporting rod 23 which extends from end to end ofthe davenport connecting the brackets 22 at opposite. ends and upon which the bars 9 ofthe folding section rest when in extended at 25 to the links 18 and at 26 to the upper section of the toggle 16. This link serves to hold said toggle straight-when the device is inextended position as illustratedin Figure 5. The joint between the'two sections of eachtoggle16"is ma de with a pin-and-sl0t connection as shown to permit the toggle to position. A pair of links 24 are each pivoted adjust its length to accommodate the other parts. The upper end of the lower section of each toggle is squared off as shown so as to provide a support upon which the bar 6 rests when the bed is extended.

A pair of links 27 are each pivoted at 28 to the end bar 9 of the folding section and at 29 to the bar 4. Each of these links has pivoted thereto at 30 another link 31 extending rearwardly and pivoted at 32 to the rear end of the bar 6. Each link 27 is extended be yond its pivot 29 and has attached to its extended end at 33 a spring 34 whose other end is attached to the bar 4. Also pivoted at 30 to the link 27 is a loose link 45 to which is con nected one end of a spring 35 whose other end is also attached to the bar 4 at 36. The

springs 34 and 35 exert mutually opposed efforts upon the link 27, one spring being extended when the other is released. These springs are so adjusted as to balance the weight of the front section in all positions thereof. The foot 17 is pivoted at 37 to an angular brace 38 on the folding frame. The foot 17 extends upwardly beyond the pivot 37 and has pivoted thereto at 39 a link 40 whose other end is pivoted at 41 to the link 18 atv a point adjacent the pivot 20.

The operation of this device is as follows: With the device in extended position as illusstrated in Fig; 5, when it is desired to collapse the same the mattress 12 and 13 is first folded at the hinge 14 to the position illustrated in Figures 2, 3 and 4 upon the rear section. The

front section is then simply lifted. When the front section is lifted, the rear end thereof will rise upon a radius determined by the link 27 moving'about the pivot 29. As the front section rises the link18 pivots about its lowermost pivot 19. This movement of the link 18 causes the link 24 to move to the left, Fig. 5. This movement of the link 24 operates to break the toggle 16 which immediately collapses so as to lower the front edge of the rear section. At the same time, the movement of the link 27 will cause the link 31 to move the rear section bodily to the rear. This combined movement is illustrated in Figure 2, in which the initial stage of the collapsing movement is illustrated. The upper section of the toggle 16 is made considerably shorter than the lower section thereof and the pivot 26 atwhich the link 24 is attached to said upper section, is placed close to the upper pivot of said section to the bar 6. Accordingly, the toggle 16 will be collapsed very rapidly upon movement of the link 24. Accordingly, the front edge of the rear section will be immediately and rapidly dropped as the front section starts to rise. This movement, together with the bodily rearward movement of the rear section causes a wide clearance between the two sections to be established immediately after the movement begins so that the rearedge of the front section will easily clear the rear section with the mattress thereon.

As the movement continues, the breaking of the toggle 16 lowers the front edge of the rear section while the rear edge of the same is lowered by the swinging of the link 15. Meanwhile, the front :section swings rearwardly upon the links 27 and 18 as shown in Figure 4, until it finally comes to rest over the rear section in the position shown in Figure 3. In this position the cross bar 42 carried on the front of the front section is brought to rest upon the brace 5 while the bar 23 has turned over to the position shown in Figure 3 in which the bar 9 again rests thereon to support the front section in collapsed position.

The foot17 is collapsed during the above described movement by the operation of the link 40 which moves the upper end of the foot 17 forwardly as illustrated in Figure 4 cansing the same to pivot at 37 andfinally fold into a horizontal position as shown in Figure 3. The springs 34 and 35 serve to balance the weight of the moving parts, thespring35 being extended when the device is in extended position and the spring 34- when collapsed.

Itwill be seen, therefore, that in accordance with this invention a movement is provided which not only serves to' swing the front section out-or in with a simple movement but also provides an effective movement of the rear section such'as to prevent interference between the twosections duringtheir movement. The quick drop of the forward edge of the rear section together with the immediate rearward movement of that section are effective in establishing ample clearance between the two. Accordingly, this davenport can be swung out for use as-a bed with a simple movement-and can again be swung inwardly without the awkwardness of fouling the mattress. The weight of the moving section is balanced in all positions during the collapsing or extending movements.

It isobvious that variouschanges may be made in details of constructionwithoutdeparting from the spirit'of this invention; it is, therefore, to be understood that this invention is not to be limited to the specificdetails shownand described.

Having thus described the invention what is claimed is: v

1. In a folding davenport bed having end supports and bed sections movable thereon to extended position with one beside the-iother and 'to folded position with one above the other; a collapsible supporting device for wardly to folded position, and a toggle supporting the front of the rear section and connected for operation by one of said arms so as to break the toggle before the rear section moves downwardly.

2. In afolding davenport bed having end supports and bed sections movable thereon to extended position with one beside the other and to folded position with one above the other; a collapsible supporting device for the sections at each end thereof, comprising; a pair of arms pivoted to the front section and. to the support upon which that section may swing from extended to folded position, a link pivoted to the support and to the rear section movable rearwardly and downwardly to folded position, and a toggle supporting the front of the rear section and connected for operation by one of said arms so as to break the toggle before the rear section moves 7 downwardly.

3. In a folding davenport bed having end supports and bed sections movable thereon to extended position with one beside the other and to folded position with one above the other; a collapsible supporting device for the sections at each end thereof, comprising;

a pair of arms pivoted to the front section V and to the support upon which that section may swing from extended to folded position, hinged supporting means for the rear of the rear section movable rearwardly and downwardly to folded position, a toggle supporting the front of the rear section and connected for operation by one of said arms so as to break the toggle before the rearsection moves'downwardly, and mutuallyopposed springs connected to one of said arms adapted to counteract the weight of the front section on all positions during the folding operation.

In testimony whereof I afiix my signature this 8th day of March, 1926.

WILLIAM J. DUVALL.

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