|Publication number||US1028956 A|
|Publication date||Jun 11, 1912|
|Filing date||Aug 28, 1911|
|Priority date||Aug 28, 1911|
|Publication number||US 1028956 A, US 1028956A, US-A-1028956, US1028956 A, US1028956A|
|Inventors||Lars M Peterson|
|Original Assignee||Lars M Peterson|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
L. M. PETERSON.
COMBINATION CHAIR. APPLICATION 111.21) 1111a. 28, 1911.
1,028,956. Patented J1me11,1912.
F IG. 1 1
, I F/G 2 WITNESSES, I I w INVENTOR A TTORNEY COLUMBIA PLANOGRAPH CO.,WASHINUTON. n. C.
LABS lVI. PETERSON, OF BINGHAM CANYON, UTAH.
Specification of Letters Patent.
Application filed August 28, 1911.
Patented June 11, 1912.
Serial No. 646,524.
To all whom it may concern:
Be it known that I, Luis M. PETERSON, a citizen of the United States, residing at Bingham Canyon, county of Salt Lake, and State of Utah, have invented certain new and useful Improvements in Combination- Chairs, of which the following is a specification.
This invention relates to chairs which are convertible into cots and adjustable into various positions as chairs to suit the comfort and convenience of the user.
The object of the invention is to provide a simplified form of construction of the particular type of chair to which my invention relates, and with this object in view the invention consists in the novel construction, combination and arrangement of parts hereinafter described in detail, illustrated in the accompanying drawing and incorporated in the appended claims.
In the drawingFigure l is a perspective View of a chair and cot combination embodying my invention. Fig. 2 is a side elevation, partly in section, of the chair with its back and foot rest arranged for a reclining position of the user, and showing how the flexible back adjusts itself into a pillow portion.
In the several, views2/ represents the seat portion of thechair, or the frame for the seat, covered by a piece of upholstery, canvas or flexible covering 2, which is shown extending upwardly over a back-frame 3 as a back upholstery 3. The frame 3 of the back, which includes the rigid portion 3 and the flexible covering 3, is pivoted at 13 at the sides of the seat frame 2 and near its rear end. Slightly in the rear of the pivot ing 13, namely at 9, is fulcrumed at each side of the chair a lever 8. The two levers 8 support the back 3 and 3 by being pivoted at 12 (both sides of the chair being alike) to the sides of a strut or support 10 itself pivoted at 11 to the chair-backframe 3. To the front end of the seat frame 2 is pivoted at 4 the upper end of a 1eg-rest 4, and to the lower end of the latter is pivoted at 31 a foot-rest 5. The back, leg rest and foot rest are connected for synchronous or simultaneous movementsof adjustment through a connecting bar 14 at each side of the chair, the rear end of this bar being pivoted at 1 1 to the lower end of the lever 8. The forward portion of the bar is a portion thereof bent at an angle to the body of the bar and is separately designated by the numeral 16. This bent portion is pivoted at its junction with the body of the bar, at 15, to the lower end of the leg-rest and its extreme forward end is provided with a rod or pin 17 which engages a slot 18 in the edge of the foot rest. The forward legs of the chair are labeled 6 and the rear legs are labeled 7. These legs may take any suitable and desired form of ornamentation as their peculiar construction is not involved in the working mechanism of the chair.
At the top of the back is a pillow-board or support 33 about which the upper end of the flexible back 3 is wrapped as shown in Fig.2. The construction and arrangement of the back in connection with the pivoting of the levers 8 and strut or support 10, are such as to convert a portion of the flexible back into a pillow portion when the back is lowered as in Fig. 2. This is accomplished by permitting the body of the back 3 to drop lower than that part which covers the pillow support 33. At the bend in the flexible portion 2 and 3, or where the horizontal portion joins the back portion, along, say, the axis of 13 or 9 there is a tendency to take up slack by the bending of the flexible covering 2' and 3 in raising the back from reclining position to upright position. Again by comparing Figs. 2 and 1 it will portion 3 are brought substantially into alinement. These supports are cross-pieces or slats 8 between the levers 8 and the pillow-support 33 on the back-frame 3. In Fig. 2 the pivots 11 and 12 are alined on a line at substantially right angles to the plane of the back and the levers 8, while in Fig. 1 these pivots are on a line substantially parallel to the back. In this manner the automatic pillow adjustment is effected without providing any special mechanism or parts and by the mere manner in which the levers, back and back support 10 are pivoted together.
A mechanism for supporting the adjustable parts in their adjusted position with the aid of the above-described connections, is arranged-underneath the seat or chair bottom 2 and 2 and consists of a suitably be noted that the supports for the flexible mounted transverse shaft 29 which may be rocked by a short lever 30 arranged on one of the ends of the shaft. To the respective ends of this shaft are keyed a pair of arms 27 and 28. To thefree ends of these arms are pivoted the upper ends of connecting rods 25 and 26 and the lower ends of the latter are, in turn, pivoted to the rear ends of a pair of quadrants 19 and 20 pivoted forwardly to the foot. or leg rest at 21 and 22 and having notches 2a therein. These notches are adapted to engage a rod 23 mounted in and between the chair-legs 6. Thus by simply pulling backward on the lever or handle 30 the notches 24: in engagement with the rod 23 will be released from said rod. The leg and foot'rests will then, together with the back, be free to swing on their respective pivots into horizontal positions and make the whole structure a bed or cot. As the back is lowered the levers 8 are caused to travel in advance of the backframe 3 until when the Fig. 2 position is reached the head rest is as much higher than the support 8 for the balance of the flexible back, as the distance between the pivots 11 and 12, which distance may, of course, be varied to individual requirements. In the Fig. 2 position the distance from the center 13 to the points 11 and 12 is substantially the same, but in raising the parts of the back from this position the levers 8 swing about the center 9 while the back frame 3 swings about the center 13 and describes a larger arc. The result is that in the raised position the flexible part 3 of the back is stretched to the eXtent'of the distance between centers 13 and 9. In other words the head-rest 33 is in the upright position of the back substantially raised to the extent of the distance between the centers 13 and 9. This opera tion of stretching the raised back is supplemented by the substantial alining of the rear supports for the flexible part 3. This provision which places the pillow-end of the back higher than the body of the back, when the latter is lowered, is accomplished without the use of any additional mechanism for that purpose other than that employed for automatically placing the rest 10 in a vertical position under the back when the latter is inclined as in Fig. 2. This automatic or positive movement of the back 10 insures its proper position and obviates the risk of a loosely pivoted support 10 of the latter taking a position, or being accidentally positioned, at such an angle as to make the support insecure, or as to permit the back to drop to the floor.
It will be noted that the levers 8 are in such position that they may cover the edges of the back as a whole, or form side-pieces, as it were, for the back-portion 3. In such capacity their outlines may be adapted, for the sake of appearances, to whatever design may be desired for the chair-back. Such ornamental features are purposely avoided in the drawing for the sake of more clearly distinguishing the different parts. The position of the side-bar 14 at each side is also such as to simulate a part of the ordinary chair construction, such as the ordinary round, brace, or connecting bar between the front and rear leg at each side.
For a rearward inclination of the back, short of the inclination shown in Fig. 2,
. the back has very firm support in the double pivoting thereof at 9 and 13 and the positive engagement of the notches with the bar 23. Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with a chair-seat and its supports or legs, of a back-frame pivoted to said seat, a head-rest mounted at the upper end of said back-frame, a leg-rest pivoted to said seat, a foot-rest pivoted to said legrest, connections between said backframe, leg-rest and foot-rest which move said leg-rest and back-frame angularly and said foot-rest parallel to said seat when said back-frame is swung pivotally, a flexible covering on saidseat, back-frame and headrest, a strut-support for said back frame, means for maintaining its normally suspended or substantially vertical position throughout the movements of said pivoted parts, and means for locking all of the said pivoted or movable parts against movement.
2. The combination with a chair-seat and its supports, of a back-frame havinga headrest thereon, said back-frame pivoted to said seat for tilting movement relative thereto, a flexible covering for said seat, back-frame and head-rest, a strut-support pivotally suspended 011 said back-frame at substantially the lower edge of said head-rest, a leg-rest pivotally suspended from said seat, a footrest pivoted to said leg-rest, a pair of levers pivoted to said strut-support and to said seat, connecting-bars pivoted to said levers and .to said leg-rest and foot-rest, said levers supporting said foot-rest in its horizontal position throughout its movements and also supporting said strut-support in its vertical suspended position, the I pivoting of said strut-support to said, levers being below the pivoting thereof to said back-frame, whereby a pillow-offset is formed between the levers and head-rest, and slats 8 on said levers for supporting the back-portion of said flexible covering below the plane of said head-rest when said back-frame is tilted into a horizontal position. 4
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
LABS M. PETERSON. Witnesses:
FRANK E. MOCARTY, CHARLES RAY SUNDBERG.
Copies of this patent may be obtained for five cents each, by'addressing the Commissioner of I'atents,
Washington, D. G.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4600189 *||Apr 11, 1984||Jul 15, 1986||Lifeing, Inc.||Multi-function exercise system|