Патент USA US2408338код для вставки
2,408,337 Patented Sept. 24, 1946 y UNITED STAT *es> PATENT oFFlCE A 2,408,337 nNocKnowN sTooL on THE LIKE William c. Panzenchi'eago, 11,1. . Application october so, 1944, serial No. 560,921 4 Claims. (o1. 155-194) y "This ì ` invention relates 1 to knock-dow n stools _ or the'like and more particularly such a 'stool made largely from sheet metal. f ‘adjacent but spaced below its extreme upper-end and which provides a downwardly facing shoulder I'I and' an upwardly facing shoulder I8. The downwardly facing shoulder I'Í mates with the Among other objects the invention aims to pro ‘vide a simple and inexpensive structure for this purpose, the separate parts for which can be pro duced in large quantities from sheet metal at low cost and Iwhich parts may be assembled, «say after upwardly facing shoulder I9 on the skirt at the . lower margin of viillet VI4 and the upwardly facing shoulder I8 supports the lower edge 20 ofthe skirt._ >The‘extremey upper end 2l 'of the leg is shipment to a given destination, with extreme receivedin the interior channel I5 produced »by simplicity and-rapidity of operation, the location ofthe parts being advantageously predetermined ranged'the various interengaging shoulders re ~by interengaging- formations thereon which not the embossed fillet I4. »So constructed and ar-Y ferred to- are desirably still within the extreme only prevents incorrect assembly but also speeds outer periphery of the stool top as represented by up the rate of assemblyand reduces the number --of fastening elements required. At thesame time Vinterengaging formations and the minimum number of fastening elements contribute to en the exterior face of the fillet I4. » f ` Thus the downward stresses on the stool top are transmitted directly to the legs of the stool through the material of the top and leg them selves and particularly by the vetrically aligned interengaging'shoulders just referred to and with Theseand other advantageous objects will be 20 out dependence upon extraneous fastening'means. yTo further enhance this desirable interfitting in readilyapparent from the following description, terlock, the extreme lowerk edge of the skirt I3 taken together with the accompanying drawing, hance the appearance of the'stool and comfort -of use. '- ' ' " >of an illustrative construction following the pres -ent invention, andY in which drawing- ’ Figure 1 is an elevational View of a stool em bodying the present invention; ` may be turned inwardly as at the flange 22 >and the leg may be further channeled inwardly as at r3 to receive this turned-in edge 22.V >Turning now tothe interñtting formations of the band II and legs I2, and as best shown in Figure 3, the band is extruded outwardly in a Figure 2 is an enlarged vertical sectional View taken on the line 2~-2 of Figure l, and showing number of places, corresponding to the number the interengaging formations between the stool of legs, as at the bulge 24, and the leg, which has 30 top and the legs; and , an arcuate curvature as at 25, mates with this Figure 3 is a fragmentary cross-section taken bulge to> predetermine the position of the leg cir on the line 3-3 of Figure 1 and showing the in» cumferentially of the band. In .this instance, the terengaging formations between the band and the stresses tending to displace the legs are lateral legs. Referring in detail to the illustrative construc 35 stresses ratherthan the vertical stresses which more frequently occur at the upper end of the tion shown in the drawing, the stool ofthe pres leg, and these lateral stresses on the legs in the ent invention contemplates a minimum number vicinity of the band YII are transmitted directly of parts, and in this instancer the top I0, band H to the band by the shoulders which occur as at and legs I2, of which there .may be at least three and commonly four. These parts may be advan 40 26 at each side of the inner face of the bulge 24, and again eliminating reliance upon extraneous fastenings for this purpose. Thus in both instances, the normal stresses, namely the vertical stresses adjacent the upper For this purpose, the stool top I0 has a depend ing annular skirt I3 about the periphery of which 45 ends of the legs and the lateral stresses adjacent their lower end, are accommodated by the inter and vertically intermedial of the skirt is an em ñtting interlocking formations ofthe parts at bossed ñllet portion I4 providing an exterior tageously formed of sheet metal and produced in large quantities at low cost, for later assembly ' into the stool as shown. these places respectively. » . somewhat wide band about `the skirt and of in To fix the assembly, suitable releasable fas terior channel-like formation as at I5. Each leg, at its upper end, has formations 50 tener'elements may be provided such as the sin gle screw 21 here shown passing through the thereon adapted to interengage in a predeter band bulge 24 centrally into the leg at this mined manner with the top formation just de point and nut 28 which may be turned onto the Y scribed. To this end, as here shown, and as best Y screw 21 within the hollow part of the leg. Simi seen from Figure 2, each leg has an inwardly offset portion or exteriorly channeled portion i6 55 larly at the upper end of the leg a pair of screws 2,408,337 3 4 such as here shown at 29 may be employed which again are secured in position by the nuts 3D within the hollow interior of the stool top. It will be understood of course that suitable formations including an exteriorly channeled perforations are provided in the parts at regis in said exteriorly channeled portion, a. further tering places therein when the legs are positioned as indicated by their interfitting formations in the top and band, and that thus as so guided by these pre-fabricated arrangements, the parts of the stools may be shipped each in bulk, with a minimum of space occupied thereby and the in skirt and each leg respectively, said interengaging portion at the upper end of each leg, a shoul dered formation on said skirt matingly received exteriorly channeled portion in said first men tioned channeled portion, and an inturned flange at the lower end of said skirt matingly received in said further exteriorly channeled portion, and fastener elements extending between said skirt and said >legs respectively. dividual stools assembled from the separate parts 3. In a knock-down sheet metal stool embody as here shown with great accuracy and rapidity, ing a top and at least three legs, the combina in any quantity desired. tion of a band encircling said legs, a depending To further minimize the number of parts, the 15 skirt on said top spaced substantially above said stool I0 is shown recessed on its upper surface band, interengaging formations on said skirt and as at 3l to a sufficient extent .to receive a non each leg respectively, said interengaging forma metallic part as shown at 32 to provide a seat tions including an exteriorly channeled portion secured in place by a suitable cement. The part at the upper end of each leg, a shouldered forma 32 is preferably of a fabric or fabric-like material 20 tion on said skirt matingly received in said eX and of a layer extending not higher than the teriorlychanneled portion, a further exteriorly rounded rim 33 of the stool and thus being channeled portion in said first mentioned chan desirably flush therewith ~to avoid danger of acci neled portion, and an inturned ñange at the lower dental removal of the part 32. end of said skirt matingly received in said further It is to be understood that the invention is 25 exteriorly channeled portion and whereby to pre not intended to be limited to‘ details of con determine the respective positions of the parts, struction shown for purposes of exemplification screws extending between said skirt and said legs of the invention and that such changes may be and between said band and said legs, and nuts on made therein as fall within the scope of the ap said screws. pended claims without departing therefrom. 4. In a stool embodying parts comprising »a Having thus fully described my invention, what top and a leg, the combination of a depending I claim as new and desire to secure by Letters skirt on said top, means for supporting said top Patent is: ' on said leg by attachment of the upper end of 1. In a. stool embodying a top and at least the leg to the inside .face of the said skirt includ three legs, the combination of a depending skirt 35 ing interengaging formations on said parts, said on said top, interengaging formations on said interengaging formations comprising a chan >skirt and each leg respectively, said interengaging formations including an exteriorly channeled portion at the upper end of each leg and a shouldered formation on said skirt matingly re ceived in said exteriorly channeled portion, and fastener elements extending between said skirt and said legs respectively. neled portion on one of said parts and a shoul dered formation on the other part received in said channeled portion by relative lateral move ment of the parts, and laterally extending fas tener elements extending between said skirt -and said leg, whereby the skirt outer face is unin terrupted by the leg upper end .and the down ward stresses on said top are taken by said inter 2. In a stool embodying a top and at least three legs, the combination of a depending skirt 45 engaging formations. on said top, interengaging formations on said WILLIAM C. PANZER.