US1721889A - Extensible bedstead - Google Patents

Description

July 23, 1929. D. c. TRAVIS EXTENSIBLE BEDSTEAD 4 Sheets-Sheet 1 Filed Nov. 10, 1925 .NN Nn. NN

July 23, 1929. D, c, TRAWS 1,721,889

EXTENS IBLE BEDSTEAD Filed Nov. 10, 1925 4 Sheets-Sheet 2 July 23, 1929. D. c. TRAVIS 1,721,889

EXTENSIBLE BED-STEM) Filed Nov. 10, 1925 4 Sheets-Sheet 5 Patented July 23, 1929.

rre] s DON CARL-OS TRAVIS,

'rss

'f OFFICE OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

EXTENSIBLE BEDSTEAD..

Application tiled November 10, 1925. Serial No- 68,102. i

My invention relates to extensible bedsteads of the type wherein one section of the bed is a stationary section and the other section is movable from a position overlying the stationary section to a co-planar` position, thereby forming a bed of double width..

The object of my invention is to provide such a bedstead wherein the movable section is provided with strong bracing means to prevent the collapse thereof, due to the pull of the bed fabric. Another object is to provide such a bed'which will be light in weight,

, of rigid construction and which. will be artistic in its appearance. Other objects and advantages will be understood by references had to the following specification when considered in connection' withthe aceon'ipanying drawings, wherein I have illustrated a selected embodiment of my invention, and in which Fig. 1 is a perspective view showing my bed partly extended.

Fig. 2 is an end elevation showing the bed folded.

Fig. 3 is an end elevation showing the parts partially extended as in Fig. 1.

Fig. 4 is an end elevation showing my bed fully exten-ded.

Fig. 5 is a section on the line 5 5 of Fig. 3, and

Fig. 6 is a section on the line 6 6 of Fig. 2.

Referring now to the drawings, 10 indicates the stationary section and 11 the movable or extensible section of my improved bedstead. The stationary section 10 includes end frames 12 and 13 which comprise legs'14 and 15, cross members 16, and top rail 17 and bed fabric 18 stretched between the said top members 17. rIhe two end frames 12 and 13 are spaced apart by side rails 19 and 19a on one side and 2O and 20a on the other side.

rilhe movable section 11 comprises end frames 21 and 22 which are made up of horizontally extending members 23 and downwardly extending legs 24, and bed fabric 25 stretched between the said horizontally exten ding members 23. rIhe said end frames 21 and 22 are spaced apart by means of side rails 26 and 27 extending between the said downwardly extending legs 24. The movable section is pivotally connected to the stationary section by means of a link 28 which is pivotally connected at its upper end to the end of the horizontal member 23 as indicated at 29, and to the cross member 16 of the stationary section at a point spaced from the lower end thereof as indicated at 30. In vorder to maintain the movable section in substantially horizontal position during the folding operation, I provide another link 31 which ls'pivoted at its ends tothe horizontal rail 23 of the movable section as `indicated at 32 and to the cross member 16 of the stationary section as indicated at 33. i

It will be apparent` from an inspection of the drawings that the bed fabric 25 of the movable section will have a strong tendency to pull the horizontally extending rails 23 toward each other, especially at the ends remote from the leg sides which are held spaced apart by means of the spacing bars 26 and 27 To overcome the collapsing tendency created by the bed fabric as above explained, I provide spacing bar 34, secured at its ends to the links 28 as indicated at 35 and 36 above the pivotal connection 30 and spacing bar 37 extending between the lower or freeends of the said links and likewise secured thereto. An additional bracing member 38 extending diagonally from the free end 39 of the link 28 to a point on the spacing bar 34, the said brace being secured at said free end and at a suitable point on the spacing bar as indicated at 40. It willbe noted that by pivoting the link 28 at a point spaced from its lower end, I am enabled to provide a diagonally extending brace which straddles the cross mem.- ber 16 and I am enabled thereby to effectively prevent the collapse of the inner ends of the horizontal rails 23. It is also to be noted that the spacing bar 37 may be dispensed with it' desired, and also that I may dispense with the spacing bar 34 and use only the bar 37, in which case I reverse the direction of the brace member 38. In that case the brace may be secured to the link 28 at a point such as indicated at 35 and to the spacing bar 37 at any suitable point.

To assist in the Jfolding or extending of my improved bedstead, I prefer to provide springs 41 and 42. One end of each of these springs may be connected to the legs 14 and 15 of the stationary section frames 12 and 13, as indicated at 43 and 44. The other end of these springs may be connected at the free end of the link 28 as indicated at 45.

.Itkwill be obvious that in the extending operation the spring 42 will, at the beginning of the operation, exert a considerable tension on the free end of the link 28 to raise the mov- CII able section to its highest position, at which time, it is approximately balanced in its pulling power by the spring 41. At this point, orwhen slightly over center, the weight of the movable section tends to quickly and forcibly complete the extending operation, but the spring 41 serves to check this acceleration and acts asa shock absorber, thereby preventing sudden and forceful landing of the legs 24 on the floor.

Ornament-al end frames 46 and 47 may be attached to the stationary section by means of angle plates 48 and 49 or by any other suitable means, and suitable corner bracing such as indicated at 50 and 51 on the stationary section 52 and 53 on movable section may be provided.

I am aware that changes in the construction and proportion of parts may be made without departing from the spirit of my invent-ion, and I reserve the right to make all such changes which fairly fall within the scope of the followingr claims which should be construed as broadly as possible, consist- I ent with the state of the art.

I claimy as my invention: In an extensible bedstead, the combination between and secured to said legs, a movable bed section including end frames, and means for movably connecting the end frames of said movable section to the corresponding end frames of said stationary section, said means including links pivotally mounted in termediate their ends on the outer sides of the cross members of the stationary section end fra-mes and pivotally connected at their respective upper ends to saidv movable section end frames, a spacing bar extending between said links above said intermediate pivots, a tie bar connecting said links below said intermediate pivots, and a brace between each link andthe spacing bar, each brace having its upper end secured to the spacing bar inwardly from the adjacent end of saidbar, and its lower end portion underlying the cross bar of the adjacent stationary end section and secured to the lower end of the adjacent link to clear the said cross bar during swinging movements of the link.

DON CARLOS TRAVIS.

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