US1112969A

US1112969A - Chair.

Info

Publication number: US1112969A
Application number: US72775212A
Authority: US
Inventors: John K Bergmark
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-10-25
Filing date: 1912-10-25
Publication date: 1914-10-06
Anticipated expiration: 1931-10-06

Description

J. K. BERGMARK.

GHAIR.

APPLICATION FILED 001 .25, 1912v Patented Oct. 6, 1914.

FIG. 2 5

INVENTOR %9A an? M BY a ATTORNEY THE NORRIS PETERS c0 PHOTO-Linda. WASHINGTON. D. C.

\ UTE STATES PAT QFFIQE- JOHNKYJJBERGMARK, or CADILLAC, Mrcnrean;

T (ZZZ whom itmag concern Be it known that I, JonnyK. BERGMARK, a subject of the King of Sweden, and a resident of the city of Cadillac, in the county of WVexford and State of Michigan, have invented certain new and useful Improvements in Chairs, of which thefollowingis a specification. 1

My invention relates to furniture and has particular reference to an improvement in chairs. j j

The object of the invention is to provide a simple type of dining room chair convertible into a reclining chair adapted for use after dinner, say, on the veranda as a comfortable reclining chair.

With this object in view the invention consists in the novel construction. of chair, its combination and arrangement of parts, all as hereinafter described indetail, illustrated in the accoinpanyingfdrawing and incorporated in the appen ded claims.

In the drawingFigure 1 is a perspective view of a chair embodying my invention. Fig. 2 is a side elevationshowing the back of the chairin recliningposition.

In the several views 2 represents the seat, 3 the back provided with legs or

extensions

4 and 5 and 6 the chair legs. The lower ends of the

legs

4 and 5 are pivoted on pivots 7 and 8 in holes9 and 10 which pass through the chair seat at an inclination so as to form rear rests for said chair which are parallel to the arms when the latter are tilted backwardthe full extent of the backward tilting movement. As shown the

arms

4 and 5 project a short distance below the chair seat and, preferably, to one of these arms and to one of the chair legs a coiled spring 11 is attached and tensioned to pull the back toward its normal or\nearly upright position shown in Fig. 1. A rod 12 is revolubly mounted on

staples

13 and 14 on the underside of the seat. Extending at right angles from the ends of this rod are arms or struts or

braces

15, and 16 which normally support the

arms

4 and 5 against backward tilting. In the

braces

15 and 16 are a series of

holes

17 and 18 through which pins may be inserted to form stops against which the lower ends of the

arms

4 and 5 may rest when it is desired ,to support the back at an inclination intermediate of the positions in which it is shownin Figs. 1

. CHAIR.

f Specification of Letters Patent.

and 2r The lower ends of the

arms

4 and 5 are normally supported against the ends of the

braces

15 and 16 when the chair. is used as a dining room chair. A spring 19 coiled around the rod 12 and having ends, 20 and 21 securedto, respectively, the chair seat and the brace 16 is tensioned to turnthe rod 12 to raise the arms or

braces

15 and 16 into engagement with the lower ends of arms14 and 5 and thereby. make the engagement automatic when the chair back is, pulled Fig. 1. A forwardly projecting leverarm 22 onthe rod 12 serves as a handle upon the rod whereby it may be turned to release the

braces

15 and 16 from the

arms

4 and 5 by swinging said braces downward, or, in other words, by pressing the lever upward. The location of the lever is such asto make this very convenient, the lever beingat the edge of the chair that is naturally grasped by the sitter.

Thetension of the spring or springs tending to draw the back to its normal position may be varied from just sufficient to swing the back to a resistance which offers a partial support against the sitters pressure against said back. Hence if the sit- Patented Octrfi, 1914. Application filed. October 25, 1912 SerialNo. 727,752.

forward toward its raised position as in ter bears against the back but lightly it may be rocked to and fro, and when the sitter leaves the chair it will:automatically .assume its rigidity as a whole, or as a dining roonrchair. Seen from the top it pre sents no mechanism and has all the simplicity of the plain chairwith the exception of the extension of the holes for the

arms

4 and 5, which extensions are in the rear of the arms in their normal position.

Various devices for permitting the tilting of the back have been provided, but they have uniformly failedto preserve substantially intact the simplicity and usual appcarance of the diningroom chair and the cost of production has usually been prohibitive so far as the purpose of the present invention is concerned.

The provision of holes for pin stops in the braces is to adapt the chair for some possible special purpose where, for instance, it is desired to adjust the back for a sick person atan inclination intermediate of its normal and extreme tilting, and is not designed for ordinary use. The usual ratchet bar would serve such intermediate adjustments better, but would involve a mechanism and construction which would defeat the purpose of providing an armless dining room chair with the t ltlng feature as well as with the normal rigidity of the back.

The rod, its braces and the lever or arm for turning the rod and braces, may beconveniently formed'out of a single heavy wire or light rod, by bending the wire over von itself to form the braces, and therefore 0bviating the material increase in expense that this invention, among other things, is clesigned to overcome in chairs of this type.

The coiled springs attached to the lower ends of the arms 4: and 5, either or both, and to the rear chair legs are staple articles of commerce, as is also such springs as the coiled spring 19, and add but a trifle to the cost of the ordinary dining room chair.

The construction of the brace or braces for supporting the legs 4: and 5 in normal 7 position, their position underneath the chair seat and the arrangement to connect same wlth the portion of the back pro ect1ng beneath the seat, may, of course, be varied in g I l 7 1,112,969

numerous Ways without departing from the spirit of my invention.

I claim as my invention The combination with a chair having opening, through the rear portion of its seat, of a back having lever-arms which pass through said openings, are pivoted therein and project below said seat, pivoted struts which abut against the projecting portions of said arms and support same in a substantially rigid and normally raised position, means for swinging said struts, and means. causing an automatic engagement of said struts and arms and the raising of said back to its normal position.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN K. BERGMARK;

Vifit'nesses CHAS. G. MOI-IL, ARTHUR W. PENNY.

Gopiesof this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' T Washington, I). C.