US1890089A - Resilient bottom - Google Patents

Description

Dec. 6, 1932. KRONHEIM 1,890,089

RESILIENT BOTTOM Filed Feb. 27,1930 2 Sheets-Sheet 1 H INVENTOR 1/9005 kkmvHE/M ATTORNEY Dec. 6, 1932. J. KRONHEIM RESILI'ENT BOTTOM Filed Feb. 27; 1930 2. sneetsa'sneet 2 INVENTOR J'lrz'oa KRONHE/M ATTORNEY Patented Dec. 6, 1932 PA'IEN'D OFFICE moon KBONHEIM, or CLEVELAND, 01110 RESILIENT BOTTOM Application filed February 27, 1930. Serial No. 431,781.

My invention relates to resilient bottoms for chairs, couches, and similar upholstered furniture, and my object in generalflis to provide simple and eflicient means for constructing and installing such. bottoms with expedition and dispatch and with a material saving in time and labor as compared with customary practices. Thus, in the accompanying drawings I show the invention applied to a chair or'couch seat, Fig. 1 rep: resenting aplan view of the device, partly in section; Fig. 2 showing a front elevation or edge view projected from Fig. 1; Fig. 3 a vertical cross section on line 8-8 of Fig. 1;

and Fig. 1 is an enlarged sectional view of :1 portion of the seat secured removably within the frame of a chair or couch.

Fig. 5, Sheet 2, is a sectional view of a chair or couch seat embodying a modified form of the invention, and Fig. 6 is a perspective view on a larger scale of a portion of the rail and wire members shown in Fig. 5. Fig. 7 is a perspective view corresponding to Fig. 6. showing a further modification, and Fig. 8 is an enlarged perspective view of one of the wire members used in the seat shown in Figs. 1 to 4. The present improvement resides largely in the particular means employed for suspending a flexible bottom member A by means of coiled springsB within an angularly-sided open frame C. This open frame may be a fixed part of a piece of furniture, such as a chair or couch, or it may be a removable part thereof, such as a removable seat mounted within or upon another frame having supporting feet or legs. In either case, the open frame C comprises four angularlyrelated rails 2, each having openings or slots bored transversely therethrough at spaced intervals lengthwise of the rail. Preferably, the outer face of each rail or side member 2 is also provided with a longitudinal groove or channel l in communication with or open to the outer ends of the slots or openings 3. Thus, the grooves or channels 4: have a plurality of transverse openings or slots extendingtherefrom through the rail or side member to the inside face thereof, wherein a suitable tie member D made of wire maybe inserted and fixedly confined. The main body of this tie member D is straight and'of a length corresponding to the groove in the rail and it has relatively long branches or loops 5 bent or formed therefrom. atright V angles and at equi-distant places therein. The lateral branches or loops 5 correspond in spacing to the openings or slots 3 in the rails so that they may be jointly introduced therein and caused to project therethrough at their eye or loop ends 6 where doubled back on parallel lines. Only the eye or loop end 6 remains exposed on one side of the rail when the straight body of the tiemember is seated within the longitudinal groove 4 on the other side. In some cases, a separate molding strip 7 is affixed to the outer face of rail 2 to cover the groove and wire body, but if desired these parts may be covered and concealed by the upholstering material only when it is tacked in place.

No special means need be employed to fasten the tie member D to the rail, inasmuch as the coiled springs B are hooked to theloop ends or eyes 6 of this element while it is confined within the rail, and because the springs are always under tension when connected to the flexible bottom A which is stretched taut by the springs. Accordingly, it is a simple matter to assemble a seating structure such as described, the operations merely consisting in slipping four of the wire elements D into the four rails, and then hooking the springs to the protruding eyes'6, and connecting the flexible bottom member A to.the springs, or if the springs are first attached to the bottom member, then the springs are connected to the eyes 6.

The assembled parts may now be padded and upholstered, either separately on frame C, or after all said parts are mounted within an independent chair or couch frame.

In Figs. 5 to 7, Ishow a modification of the'invention which is. of especial utility in producing a chair or couch seat having a bank or group of compression springs E built up on and supported by flexible bottom member A. Such springs are usually placed under tension before upholstering by tying them together and to the frame by means of hemp cords F, and to facilitate that operation a tie member D may be employed having all the characteristics and features already described, together with a second series of 5 branches or loops 5 formed from the main body of the Wire but in a plane at right angles to the first set of branches or loops 5. Agreater number of the secondary loops 5 may be employed and these extend vertically or upright in respect to frame C and loops 5, and their respective eyes or loop ends 6 protrude and are exposed above the top surface of the rails Where the cords F may be readily threaded through them or tied thereto, as shown in 5 Fig. 5. In Fig. 6, a single relatively long up right looped branch 5 is formed 'between each succeeding pair of horizontal loops 5, thus disclosing that tie element D may be fashioned in various Ways Without departing materially from the concept and invention described and shown herein.

lVhat I claim, is: 1 1. In a structure as described, a frame having a side rail formed with transverse openings, in combination with a separate tie member of elongated form provided at intervals with vertically extending branches, the main body of said tie member being seated in anchoring relation against the outer side of said rail opposite the transverse openings therein, helical springs connected to said tie member at the openings in said rail, a flexible bottom connected to and held under tension by said springs, compression springs seated upon said flexible bottom, and means tying said springs to the vertical branches of said tie member.

2. In a structure as described, a frame having a rail provided with openings at spaced 4o intervals. and a tie member havingbranches atspaced intervals adapted to extend through said openings and also having a series of branches extending at an angle to said first branches and adjacent one side of said rail.

4 3. In a structure as described, an open frame having a rail formed with a series of transverse openings, and a tie. member having loop portions extending through said openings and other loop portions projecting at right angles to the plane of said first loops.

In testimony whereof I allix my signature.

JACOB KRo'NHnrM.

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