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Publication numberUS856058 A
Publication typeGrant
Publication dateJun 4, 1907
Filing dateFeb 16, 1906
Priority dateFeb 16, 1906
Publication numberUS 856058 A, US 856058A, US-A-856058, US856058 A, US856058A
InventorsJames E Hanger
Original AssigneeJames E Hanger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chair.
US 856058 A
Images(1)
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Description  (OCR text may contain errors)

No. 856,058. 4PATEN'IED JUNE 4, 1907.

- J. E. HANGER.

GHAIR.

APPLICATION TILED FBB.16, 1906.

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JAMES E. HANGER, OF WASHINGTON, DISTRICT OF COLUMBIA,

CHAIR.

Specification of Letters Patent.

Patented June 4, 1907.

Application tiled February 16, 1906. Serial No. 301,379.

.To all wiz/0m, it may concern.-

Be it known that I, JAMES E. HANGER, a citizen of the United States, residing at Vashington, District of Columbia, have invented certain new and useful Improvements in Chairs, of which the. following is a specification.

This invention relates to improvements in chairs, and more particularly to the construction and arrangement of the back and seat portions.

The object of my invention is to provide a chair back constructed of a series of slats curved'at or near their lower ends in such a manner as to forni a perfect support for the small of the back, and straight at their tops so as to properly support the shoulders, the i said slats being connected to each other and to the frame of the chair by a transverse spring or springs which allow the entire series as well as the individual slat to accommodate or adapt itself or themselves to the curvature or form of the back, and thus insure perfect ease and comfort to the occupant.

Another object of my invention is to pro vide a chair seat so mounted upon the frame as to have a rocking or oscillating` movement, which is controlled by a coiled spring so .arranged as to allow the seat to tilt backward sufficiently to adapt itself to the form of the occup ant and distributing the pressure evenly, thus affording great ease and comfort.

Iith these ends in view and such others as may hereinafter appear, my invention consists in certain component and co-operative part-s, and in the novel manner of combination and arrangement of said parts, all of which will be more fully described and specifically pointed out in the appended claims.

In the drawings formingva part of this specificationz-Figure 1, is a vertical sectional view of a chair illustrating my invention as applied 5 Fig. 2, is a front view of a chair illustrating theback; Fig. 3, is a plan 'view illustrating the slats and transverse springs g Fig. 4, is a similar view illust-rating a modification; Fig. 5, is a similar view illustrating another modification, and Figs. 6 and 7 are perspective views of the clamps for retaining the slats to the springs.

Referring by numerals to the drawings, 1 represents the legs of the chair which extend up sufliciently above the seat to form a support for the arms 2. These legs are secured together by horizontal braces 3, and transverse braces 4, and 5, the braces 8, support a transverse rod 6, which is a little front of the center of the chair and provides a pivotal support for the seat 7, the forward end of which is normally held against the transverse brace 4, by coiled springs 8, wound upon the rod 6, with one end extending forward and secured in the braces 3, while the other end extends in the opposite direction and engages the bottom of the seat which is limited in its movement by the transverse brace 5, however, a sufficient movement is provided to allow the seat to adapt itself to the'desired inclination to render ease and comfort to the occupant.

The frame for the back of the chair consists of parallel side sections 9 and transverse braces 10.- This frame may be stationary or pivoted, as desired, and provided with a head-rest 1 1, or such head-rest may be eliminated. Mounted upon transverse springs 12, which are secured at each end to the respective side sections 9, area series of slats 13, which are straight at their upper ends 14, and curved at or near the lower ends as shown at 15, to fit the small of the back. These transverse springs which maybe one or more, as desired, consists of a steel spring wire bent at regular intervals to form a U- shaped loop slightly contracted at the neck, to which is secured the slat 13, by means of clamps 16, and 17, which are so constructed as to allow a slight movement of the spring portion held therein.

On Fig. 4, I have shown a modification of the transverse spring wherein the spring consists of two steel wires 18 and 19, bent in a zig-zag manner in reverse directions and secured to the slats by the clamps 16 and 17, so that each wire will be permanently secured to every other slat, and have a slight movement in the clamp securing it to the intermediate slat, the permanent and loose clamps alternating throughout.

In Fig. 5 I have shown another modification wherein the transverse wire is coiled as shown at 20, around a stud 21, upon the back ofthe slat. This form as in the case of the forms above described, may be used separately or in conjunction with others, however, I have found that two of such springs give the best result-s.

Minor changes in the transverse spring, such as connecting the slats by intermediate spiral springs, and other details of construction, may be resorted to without sacrificing the advantages of my invention.

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Having thus described the various features of my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a chair back, the combination with the trame, a transverse spring, a plurality of independent slats secured to said spring, substantially as specified.

2. In a chair back, the combination with the frame, transverse springs secured upon theframe, a plurality of independent slats iecured to the springs, substantially as speci- 3. In a chair back, the combination with the frame, a series of transverse s rings secured to the sides of the frame, a p urality of independent slats clamped to the springs,

substantially as speciiied.

4. In a chair back, the combination with the frame, a transverse spring connecting the sides of the frame, a plurality of independentV slats secured upon the spring, the upper ends of the slats being straight and the lower ends curved, substantially as specied.

5. In a chair back, the combination with the frame, a series of transverse springs connecting the sides of the frame, a plurality of independent slats curved at their lower ends, ineans for securing the slats to the springs, substantially as specied.

6. In a chair back. the combination with the frame, two transverse springs composed of a series of loops connecting the sides ofthe frame, a plurality of independent slats curved at their lower ends, means for securing the slats to the loops, substantially as specified.

7. In a chair back, the combination with the frame, two transverse springs composed of a series of U-shaped loops the ends of which are secured to the sides of the frame, a plurality of independent slats being straight throughout a portion of their length and the other portion curved, and means for securing the slats to the said loops, substantially as speciiied.

8. In a chair back, in combination with the frame, a plurality of transverse springs, the respective ends of the springs being secured to the sides of the frame, each spring being composed of a series of loops, aiplurality of slats, each slat being straight throughout a portion of its length, and curved throughout the remaining portion, and means for securing the slats to the loops, substantially as specified.

f JAMES E. HANGER. WTitnesses:

OWEN II. FOWLER, WV. C. BALDERsToN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2893477 *Dec 12, 1955Jul 7, 1959Cali Quilt Furniture CorpFurniture construction
US2991124 *Feb 26, 1959Jul 4, 1961Schwarz JohannBack supporting attachment for seat backs
US3106423 *Nov 21, 1961Oct 8, 1963Johann SchwarzBack rest having an adjustable shaped element
US7857388Jun 1, 2007Dec 28, 2010Steelcase Inc.Seating unit with adjustable lumbar device
Classifications
Cooperative ClassificationA47C7/46