US431825A - sundback - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

G. J. SUNDBAGK.

FOLDING BED.

N0.431,825. Patented July 8, 1890.

' INVENTDR.

WITNESSES:

s PETERS co., mom-mum, wAsHmuYnN, n. c.

(No Model.)

2 Sheets-Sheet 2. O. J. SUNDBAOK.

FOLDING BED.

No. 431,825. Patented July 8, 1890.

| P m: l

Azls filiarn ey UNITED STATES PATENT OFFICE.

CARL J. SUNDBAOK, OF SALT LAKE CITY, UTAII TERRITORY.

FOLDING B ED.

SPECIFICATION forming part of Letters Patent No. 431,825, dated July 8, 1890.

Application filed June 17, 1889. $erial No. 314,544. (No model.)

To all whom it may concern:

Be it known that I, CARL J. SUNDBACK, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and Territory of Utah, have invented certain new I and useful Improvements in Folding Beds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention consists of the bedstead made in two longitudinal sections separated at the middle and pivoted on a short base, so as to swing upright side by side into the form of a cabinet-case, of which the said base forms the lower part, both the sections being balanced by a spring for convenience of handling, and being adapted for ready adjustment to any desired inclination of either section for the convenience of invalids, and also so that one section may be used alone for a childs bed, when required, all as hereinafter fully de scribed, reference being made to the accompanying drawings, in which Figure 1 is a side elevation of the bed folded up as a cabinet-case with some parts broken out. Fig. 2 is a side elevation of the bed with one section turned down, as for a childs bed, and with the end plate of the base removed. Fig. 3 is a side elevation with both sections turned down for a full-sizedbedand withparts broken out to show some of the balancing apparatus, and also with the end plate of the base detached. Fig. 4 is a plan of the bottom of the base, showing the balancingsprings applied to continuous rods extending from end to end of the base. Fig. 5 is a plan of a portion of the base, showing short rods for the individual springs. Fig. 6 represents sections of part of one of the sections of the bedstead, illustrating more fully the balancing apparatus. Fig. 7 is a transverse section of the base and part of one of the sections of the bedstead turned upright and part of the other down.

I provide a base a, as wide as the folded bed is to be when set up as a cabinet-case, Fig. 1, and as long as the width of the bedstead, and having a standard-plate 1) near each end, but inside of the end casing c, and make the bedstead of two longitudinal sections d, separated transversely at the middle, and pivot them to the standard-plates b at e, respectively, so as to swing up together side by side, as in Fig. 1, and down either singly or both, as in Figs. 2 and 3, so that in one condition I the bedstead and the base represent a cabinetcase, in another they become a childs bed, and in a third condition a full-sized bed, the base being the entire support of the cabinetcase and the middle support of the bedstead, the ends of which have the folding legs '9, which drop into the supporting condition when the bed-sections are turned down. To balance the sections of the bedstead, I make them with the segmental circles 77.,having the pivot-centers e for their axis, and couple them by cords or chains 2' over said circles with the pulleys j on the spring-rollers 7t, located in the base and so adjusted that as the bedsections swing down the springs contract and allow such operation, while balancing the weight, or nearly so, according as they are adjusted, and the recoil of the springs returns the sections to the upright position with a slight assistance of the operator. The segmental circles h are suitably grooved for carrying the chains or cords, as in Fig. 6.

The spring-rollers may extend the whole length of the base and have a pulley on each end with a chain or cordt' to each side of the bed-frame, as in Fig. 4, or short separate spring-rollers to each side may be used, as in The pulleys j are placed on the angular ends of the spring-rollers detachably, Figs. 2 and 3, and they are located behind the detachable end piece 0 of the base, so that they are readily accessible and detachable for- By having the standards I) of the base inside of the sides of the parts dtwo important advantages are obtained: First, the stand IOC ards, which are of necessity so high as to make an objectionable appearance if outside, are concealed, and the lower end casings may be placed outside instead of them to represent a base finish similar to that on the front side, and thus conceal to a greater extent the indications of abed when folded up, and, second, these end casings being removable, as above stated, expose, when taken oft, the pulleys j much more accessibly for adjustment, as above described, to vary the tension of the springs than if the standards were outside, in which case the pulleys would have to be inside.

When the standard I) is made of wood, as it will generally be preferred to make it, it will be re-enforced with a metallic strip m to support the pivot c, said strip being set in flush with the surface and fastened by screws p, and the sides of the parts (1 are similarly re-enforced with plates at to sustain the thrusts of the pivots. These plates n also have stop-studs 0, which swing in'recesses q of the standard, and come to rest on the upper edge of the bars m when the sections of the bedstead reach the upright position and prevents them from passing beyond under the influence of the springs.

The base has a permanent plate 8, eXtend-' ing across from standard to standard, level with and occupying the space between the ends of the bottom of the bedstead-sections d, when turned down, on which the edges of the mattress if made in two parts or the fold if made in one part, so as to double when the bed is folded up, rest when so folded up. The space thus occupied by said plate is that which necessarily exists between the said end portions of the bedstead, because of being pivoted at the opposite sides of the base. In Fig. 7 .this plate is represented in two separate parts, one of which is about as much higher than the other as the thickness of the plate the purpose of which is to allow the lower edge of the bottom of that section of the bedstead which is the front of the cabinet-case when folded up to swing under said higher portion of plate 8 when turned down, said bottom or front being necessarily made a little longer to close with the inner upper edge of the front of the base when folded up than will permit of its terminating flush with the edge of plate 5 when folded down if said part of plate 8 were in the plane of said bottom when folded down. One of the sections d has a head-piece t, pivoted at u, so as to swing slightly with stops 4; to limit the same, and is made with cleats w on the lower margins to drop over the upper end of the other sect-ion, as indicated in Figs. 1 and 2-, to retain both parts in the upright position. In this example I represent the mode of fastening the cords or chains to the bedsteadsections d, above the segments h, to consist of inserting them through the hole 00 (dotted line Fig. 6) and the recess 3 to the inside of the side piece of the bedstead and knotened to the standards in the axes of the folding sections without provision for and where notaecessible for adj ustability. My invention is distinguished from the devices of this patent in that I use spring-rollers of the well known construction adapted for ready adjustment to vary the tension of the spring and locate them in the bottom of the middle section, where they are readily accessible for .adjusment, which is a very necessary condition in folding beds, and being so located I connect the rollers to the folding sections by the segmental pulley and chain device intermediate to said springs and folding sections. These have no equivalent in said patent.

I am also aware of the patent to Rieckert, N 0. 235,293, in which a spring-roller is used of substantially the same character as mine, and connected by a strap and pulley totlie short arms of the folding section of a folding bed in which the whole length folds from one side,

but without the segmental pulley on the folding section. My invention is distinguished from this device in that the chains of the spring-rollers are connected to the segmental pulley ends of the folding sections of the bedstead, so that while the power of the springs lessens by their expansion the leverage remains the same, and thus they hold up the folding sections better than when the letter the power of the springs.

I claim 1. In a folding bed comprising the middle base-section and the two end sections pivoted .to opposite sides thereof, the combination of the headpiece or cover withsaid end sections and hinged to one of them and also connected to the same by the stops limiting the opening of the cover, said cover having the cleats on the margins of the lower side closing over the upper end of the other end section to retain the two end sections in close connection in the upright position, substantially as described.

- 2. In a folding bed comprising the middle base-section b and the two end portions (1, pivoted to the opposite sides of said middle sec- .tion, respectively, and having the segmental circles h, of a spring-roller to each pivoted end portion and arranged side by side under the said middle base-section, cords or chains connecting said spring-rollers and segmental circles of the said end portions of the bed,

and re-enforcing plates at on the sides of parts d and having the stop-studs 0, and bars 'm on and re-enforcing standards b and forming age diminishes together with the lessening of located in the planes of said circular ends and the end casings c of the middle'base-section exterior to the sides of the folding end sections, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

- CARL J. SUNDBACK. Witnesses:

W. J. MORGAN,

W. B. EARLL.

Images