US2855025A

US2855025A - Folding chair-cot

Info

Publication number: US2855025A
Application number: US452613A
Authority: US
Inventors: John E Griffith
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-08-27
Filing date: 1954-08-27
Publication date: 1958-10-07
Anticipated expiration: 1975-10-07

Description

Oct.v 7, 1958 J. E. GRIFFITH FOLDING CHAIR-cow s sheets-sheet 1 Filed Aug. Isa?. 1954 INVENTOR John E Griffith ATTORNEY J. E. GRIFFITH FOLDING CHAIR-cor oct.. 7, 195s 5 Sheets-Sheet 2 Filed Aug. 27. 1954 INVENTOR John E. Griffith ATTORNEY J. E.' GRIFFITH FOLDING CHAIR-COT ocr. 7, 195s 3 Sheets-Sheet 3 Filed Aug. 27. 1954 INVENTOR John E. Griffith BY 7, M

ATTORNEY United States Patent() 2,855,025 FOLDING CHAIR-COT John E. Griffith, South Pittsburg, Tenn.

Application August 27, 1954, Serial N0.,452,613

1 Claim. (Cl. 155-45) This invention relates to a folding and collapsible chaircot.

An object of my invention is to provide a chair-cot which may be folded and set up for use as a Chair or folded and set up for use as a cot, `or folded into a corn- -pact spa-ce for purposes of transportation.

A further object is to provide a folding chair-cot having a canvas portion which may be utilized as a combined back and seat when the chair-cot is arranged to be used as a chair.

A further object is to provide a folding chair-cot hav-v ing a canvas portion which may be positioned to provide a body support when the chair-cot is set up for use as a cot.

A still further yobject is to provide a folding chair-cot t having a canvas supporting element which may be extended to serve partially as a sun visor at the time that the chair-cot isset up as a chair.

A still further object is to provide a folding chair-cot having braces and supporting elements which serve las arms and legs when set up into a chair position and which elements serve as side rails and legs when set up into a cot position.

Further objects will become obvious from the description contained in the following specification.

ln the figures:

Fig. 1 is a view in side elevation of the chair-cot when it is set upas a chair;

Fig. 2 is a top plan view of the chair-cot when set up as a chair;

Fig. 3 is a view in side elevation showing the chair-cot practically folded for purposes of transportation or storage;

Fig. 4 is a top plan view of the chair-cot when Vset up for use as a cot;

Fig. 5 is a View in side elevation of the chair-cot when set up for use as a cot;

Fig. 6 is a view in end elevation of the chair-cot when set up as a cot;

Fig. 7 is an enlarged fragmentary view in perspective `showing the side rails as aligned when the chair-cot is set up as a cot;

Fig. 8 is an enlarged cross-section on the line 8-8 of Fig. 5 taken in the direction of the arrows;

Fig. 9 is an enlarged transverse cross-section showing the clip for supporting the canvas in position for use as a cot, the latch being disengaged;

Fig. 10 is an enlarged transverse cross-section showing the latch in its closed or latched position;

Fig. ll is an enlarged cross-section taken on the line 11-11 of Fig. l() looking in the direction yof the arrows;

Fig. l2 is an enlarged fragmentary view partly broken away showing the chair arm and seat canvas; and

Fig. 13 is a cross-section taken on the line 13-13 of Fig. 12 and looking in the direction of the arrows.

Preferably, my folding chair is made of relatively light weight, but strong, wooden strips, although it will be obvious that the chair cot may be constructed of metal ICC material or suitable tubular material with or without an `attachable cushion.

Side rails

10 and 12 are pivotally secured together and spaced apart by a transverse rod 14. Near one end of the side rail 1 0, a rod 16 is pivotally attached by a transverse stub shaft 18 and extends upwardly (at ,the time that the chair-cot is to be set up as a chair). Approximately equidistant from the ends of the side rails 10, arms 20are pivotally secured thereto by stub shafts or rivets 22 in position so that when they are folded into an approximate horizontal position, the rod 16 may be inserted into U.- shaped cuts 24 in the ends thereof.

At the ends of the side rail 10, 4remote lfrom the stub shafts 18, I provide a transverse rod Z6 which extends` therebetween and holds adjacent to the side rails 10 relatively short rails 28, the ends of which remote from the transverse rod 26 are provided with U-shaped cuts 30, the

purpose of which will be described more fully hereinafter.

The rails 28 are spaced apart and held in their spaced apart position by

transverse rods

32 and 34 over which a strip of canvas 36 is positioned and fastened thereto. One end `of the strip of canvas 36 is attached to the transverse rod 32 from which it extends over the rod 34 and drops in a catenary curve to be positioned over a transverse rod 3S attached between and spacing apart the rods 16, from which it extends to a rod 4@ to which it is secured, the function of which Awill be described more fully 4hereinafter.

Approximately intermediate between the stub shaft 22 and the transverse rod 26, I pivota'lly secure braces 42 to the side rails 10 by means of stub shafts 44. At the end of the braces 42 'remote from their pivotal connection with the side rails 1t), I provide a transverse rod 46 which secures the ends of the braces 42 in spaced apart relationship equal to the spaced apart distance between them at their point of connection to the side rails v10.

At the time Athat my chair-cot is set up as a chair, as sho-wn more particularly in Figs. l and 2, the transverse rod 46 is adapted to be inserted in an U-shaped notch in the side rail 12 thereby to hold the side rail 10 in the position in which it is shown in Fig. l of the drawings.

When the chair-cot is set up in the position vin which it is shown in Fig. l, the side rail l0 will be at an angle of approximately 45 to vertical and horizontal; the side rail 12 will extend downwardly from the side rail l0 so that `rnate horizontal position, and the canvas strip 36 in an approximate catenary curve, as it is clearly disclosed in Fig. l of the drawings.

The end of the canvas strip 36 is secured to the transverse rod 4@ which is adapted to be positioned on the upper edges of the side rails 12 and bear against a transverse strip 50, which is also adapted to space the two side legs 52 a suitable distance apart adjacent to the side rails 12. Thus when pressure is placed upon thecanvas strip 36 by virtue of an individual sitting on the chair, the transverse rod 40 will be pulled tightly into the angle formed between the upper edge of the side rail 12 and the transverse strip 50.

Pivotally secured to each side rail 12, I provide a leg 52 which is pivoted to the side rails 12 by suitable stub shafts or rivets 54, and are frictionally held in alignment when the chair-cot is set up as a chair. The function of these legs 52 will be described more fully hereinafter.

At the time that my chair-cot is set up into position to be utilized as `a chair, as fully disclosed in Figs. l and 2, the weight of the individual who is sitting thereon will obviously stretch the canvas strip 36, pulling the same taut around the

transverse rods

26 and 38 which will con- `sequently urge the rod 40 snugly against the edges of the side rail 12 and the transverse strip 50. It will be obvious that when an individual is seated upon the chair, his weight will rest upon the canvas strip 36 and the arms 20 will be in position to be conveniently used as is customary with a chair which is provided with a conventional arm rest.

At the time that the chair-cot is to be prepared for use as a cot or bed, the side rail 12 is pivoted on the transverse rod 14 so'that it will be in alignment with the side rail 10, as it is clearly disclosed in Figs. 4 and 5. At this time the

apertures

56 and 58 in the

side rails

10 and 12 respectively, will be aligned so that a conventional pin may be inserted therethrough to hold the side rails in their Ialigned positions. To additionally assure the stability of alignment between the side rails and 12, I provide an angle clip 60 which is suitably secured to the side rail 10 and is adapted to provide a stop support for the side rail 12 t0 prevent it from being hinged beyond proper alignment with the side rail 10. At the time that the chaircot is to be positioned las a cot, the rails 28 are swung around on their transverse rod 26 so that the U-shaped cut 30 may be placed over the transverse rod 46, spacing apart the ends of the braces 42 remote from their point of pivotal connection with the side rail 10. Also the arms are pivotally swung over, from the position in which they 'are shown in Fig. 1, on their stub shafts or rivets 22, as are the rods 16 swung downwardly from the side rails 10 around their stub shafts 18 into the position in Which they are shown in Fig. 5. The rods 16 are at that time introduced into the U-shaped cuts 24 in the ends of the arms 20. Also the transverse rod 40 is placed into the notch 48 to hold the canvas strip 36 in its taut position.

1n order to provide additional support for the canvas 36, which at the time that the chair-cot is prepared as a cot or bed extends from the transverse rod 26 over the transverse rod 40, I provide suitable canvas or pliable strips 62 which are positioned diagonally crosswise between the

side rails

10 and 12.

The pliable strips 62 are provided at their ends, and at the points at which they are folded over to extend from one side rail diagonally to the side rail on the opposite side of the cot, with eyes 64. Secured to the

side rails

10 and 12, I provide a strap or link 66 to which is pivotally secured an arm 68 which is adapted to carry a hook 70.

be pulled by the arm 68 into the position in which it is shown in Fig. 10 to hold the pliable strip 62 stretched between the side rails 10 on the opposite sides of the cot. With the strips 62 thus tautly positioned, ample support is given to the canvas strip 36 which will form a horizontal surface adapted lto serve as an ample support for an individual wishing to use the assembled cot as a bed on which to recline.

It will be understood that minor `changes may be made in the device with-out departing from the spirit of the invention and the scope of the appended claim.

I claim:

A folding convertible chair cot including two pair of pivotally connected side rails, transverse rods spacing the side rails of each pair apart, braces pivoted to the said rails of one pair, said braces adapted to engage said other pair of rails, arms pivoted to the side rails of said pair, rods pivoted to the side rails of said pair and removably engaging the ends of said arms remote from their pivot points, a pair of short side rails pivoted to the ends of said pair of side rails, rods spacing said short rails apart, a pliable strip secured at one end thereof to said transverse rod at one end of the rst mentioned pair of side rails, passing over a transverse spacing rod at the pivot point of the said pairs of side rails and secured at its other end to a transverse rod removably held by said other pair of side rails, legs pivoted to the other pair of side rails, said legs being swingable downwardly as well as the said braces, the arms and pivoted rods being foldable to the reverse side of their side rails, said short arms being swingable downwardly to engage said braces in their downward position, the pairs of side rails being swingable into alignment to form a cot, eye clamps secured to said side rails, and pliable strips secured to said eye clamps when in a cot position, said strips adapted to cross from one side to the other of said side rails beneath the rst mentioned pliable strip.

References Cited in the le of this patent UNITED STATES PATENTS 157,042 Vass Nov. 17, 1874 322,354 Davey July 14, 1885 654,221 Brodeur July 24, 1900 722,758 Savidge Mar. 17, 1903 1,378,505 White May 17, 1921 1,984,786 Dujardin Dec. 18, 1934 2,006,277 Olsen June 25, 1935 2,011,874 Ricketts Aug. 20, 1935 2,611,418 Antelman Sept. 23, 1952 FOREIGN PATENTS 583,299 Great Britain Dec. 13, 1946