US2729279A

US2729279A - Folding chair seat fastener

Info

Publication number: US2729279A
Application number: US339758A
Authority: US
Inventors: Willard G Axtell; Darold T Beggs; Diamond A Amorose
Original assignee: SHWAYDER BROTHERS
Current assignee: SHWAYDER BROTHERS
Priority date: 1953-03-02
Filing date: 1953-03-02
Publication date: 1956-01-03
Anticipated expiration: 1973-01-03

Description

Jan. 3, 1956 w. G. AXTELL ETAL FOLDING CHAIR SEAT FASTENER Filed March 2, 1953 2 Sheets-Sheet 1 s Ham K m m a Nnu m4 5 ma n 000 H RMMW RM m W D 1956 w. G. AXTELL ETAL FOLDING CHAIR SEAT FASTENER 2 Sheets-Sheet 2 Filed March 2, 1953 m M S m5 ma H Mrs M W 4 M. 2 T 5 www 4 2% M A. 4

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United States PatentO 2,129,279 r 'FOLDINGCHAIR SEAT FASTENER with! G. Am", Denver, Colo., and Darold r. Beggs and Diamond A. Amorose, Lincoln Park, Mich., as- "lignors'to Shvvayder Brothers, Denver, Colo., a corporation'of Colorado i e r v Application March 2,1953, Serial No.339,75s I 2 Claims. (Cl. 155-196) This invention relates to tables, and more particularly to atable top mounting. Itis the object of the present invention to provide-a novel means of securing a. platform upon a tubular frame. 1 It is the further object of this inventionto utilize this novel means in a table construction.

Itisthe further object of this invention novel means ina chair construction,

It is the still further object of this invention to provide a simplified yet effective device for securing a table top upona tubular frame in such fashion that it maybe removed, if desired, for replacement or repair. a I These and other objects will be seen from the following specification and claims in conjunction with the appended drawings. in which: 1.

to provide this Fig. .1 is a fragmentary side elevational view of-a card table with. the legs broken away. Fig. 2 is a section taken on line 22 of Fig. l. 'Fig. 3. is a section taken on line 3-3 of Fig. 2.

Fig. 4 is a plan view illustrating the table top fastener as pivotally mounted upon the table top, which is,fra gmentarily shown.

Fig. 5 is a side elevational view thereof.

Fig. 6 is a right end elevational view thereof.

Fig. 7 illustrates the present fastening device in conjunction with a tubular frame of slightly different con struction.

Fig. 8 is an elevational view illustrating aslightlydifferent type of fasteningdevice for the table top.

Fig. 9,.is a leftside elevational view thereof.

Fig. 10 is a fragmentary elevational section similar to Fig. 8 illustrating a slightly different form of fastener.

Fig. 11 is a side elevational view of a chair utilizing the present fastening device for the chair platform upon the tubular seat frame.

Fig. 12 is a section taken on.line'12-12 of Fig. 11.

Fig. 13 is a fragmentary elevational section illustrating the securing of the seat platform to the seat frame; and

Fig. 14 is a section taken on line 14- 14 of Fig. 13.

It will be understood that the above drawings illustrate merely several preferred embodiments of the invention and that other embodiments are contemplated within the scope of the claims hereafter set forth.

Referring to the drawings, a table is'generallyindicated at 11 having a hollow rectangular tubular frame 12, which is ofsubstantially elliptical shape in cross-section, the corners of said rectangular frame being roundedat l3.

Said tubular frame includes an inner substantiallyupright wall 14, an outer convex wall 15 and top and bot? tom arcuate edges 16 and 17 constructed of a radii less than the radius of outer wall 15.

The rectangularly shaped top 18 is positioned upon the top arcuate edge 16 of tubular frame 12 and isjsecured thereto by the pivotal clips 25 in the manner hereafter described. J

Arranged in each of the corners 13 of frame 12 and suitably secured thereto, as by welding, are leg mounting brackets 19 with inwardly directed vU-shaped extensions 20 within which the respective. legs 21 are pivotally mounted at their upper ends. The slotted stay 22 is pivotally connected at oneeud to the frame and receives within its slot the headed pin 23 which projects from leg 7 spaced longitudinally extending slots 24 adapted to have swung thereinto the offset projections 28 of the table top locking clips 25, which are positioned upon the undersurface of said table top and pivotally joined thereto as bythe rivets 26, Fig.3.

*Clip 25 .towards its outer end has an upright wall 27 which terminates in the offset clip end 28 as'shown in Fig. 3. It will be noted that the side edge 29 of clip 25 is shorter than the side edge '30, so that the clip wall 27 at the upper end thereof, as in Fig. 4, is closer to pivot 26 than the other end of said upright wall 27. It therefore follows that the upright. wall 27 lies. in a plane at an acute angle to the longitudinal axis of clip -25, as indicated at 31, Fig. 4, to thereby facilitate the rotation'of clip 25 and the introduction of the clip end 28 within the slot 2.4,

By this. construction, when the clip 25 is at right anglestothe adjacent wall portion of the frame 12, the outer surface of upright element 27 as atpoint 33 operatively engages the outer upright wall portion 14 of said frame adjacent slot 24.

As' shown inFigs. s and 6, the offset clip end 28 is It -will be noted that the 'clips 25 are initially secured.

to.-the undersurface of table 18 and swivelled thereon by the rivets 26 and are in engagement with the under surface of top 18.

Referring to Fig. 7, there is shown a slightly different cross-sectional shape of tubular table frame which includes the convex outer surface 34, rounded top surface.

35, inwardly directed shoulder portion 36, upright inner wall portion 37 and rounded bottom edge 38. The table top 39 has swivelled thereunder a plurality of clips 40 joined thereto by the rivets 41, which clips are substantially the same as the clips ,25 above described withrespect to Figs. 4, 5 and 6. Said clips include the downwardly extending upright wall 42, which terminates in the outwardly projecting clip end 43 which operatively engages under the shoulder 36 of the frame shown in Fig. 7; The upright wall 42 upon .its outer surface operatively engages the internal portion of frame element- 35, and at the same time the clip end 43 wedgingly engages shoulder 36 when said clip is rotated so as to be at right angles to the adjacent wall 37 of said tubular frame.

This construction is similar to the frame construction above described except that the slots 24 are omitted and substituted therefore is the shoulder formation 36.

Figs. 8 and 9 also show a slight variation in a clip construction for securing table top 50 to the tubular frame shown in Fig. 8. Said frame includes the convex outer surface 44, top and bottom

arcuate edges

45 and 46 and the inner upright wall '47 which has a plurality of longi' tudinally spaced slots 48 formed therein. v

The securingclip 49 is positioned upon the under surface of top'50 and pivotally joined thereto by rivet 50'. Clip 49 has rightangular depending portion 51 with an inturned lip 52 at its free end to facilitate the downward positioning of the respective clip elements 51 into the hollow rectangular formed frame. Within the depending clip element 51 there is provided a struck out Patented Jan. 3, 1956 portion 53 cut out from" element 51 on three sides and bent outwardly asat 53 in Fig. 8 and. adapted for cooperative retaining positioning within the respective transverse slot 48 formed in the inner wall 47 of said frame.

Once the locking: elements 53' are within the said slots, the top 50 may not be removed from said frame without manually bending clips element 51 inwardly s'ufiicien-tly as to disengage locking element 53 from the-top'bounding Wall, which defines transverse slot 48.

Fig. 10 illustrates still another variations-of the clip shown in Fig. 8. The clip 55 is swivelly 'mountedupon the undersurface of top 54 by the rivet 56. Said clip has a' downwardly depending portion 57 and a' formed struck out element with an outtur-ned end portion 61, which extendsthrough the transverse' slot 59-formed--;in clip element 57 by the striking' outof the'lock' element 60'61. Here also said clip element has an inturned lip 58 similar to lip 52 of- Fig, 8 to facilitate insertion of clip' element 57 within the frame. The locking end 61 projects beyond the upright'wall of clip element-'57 and While Figs. 1-10 illustrate the application of ate-tnvention to acard table construction or other table,- Figs. 11- 14 illustrate an embodiment of the invention incorporated into a folding chair.

Such a chair includes the inverted U-shapedtubular frame 63 terminating in the spaced front legs'64 and 65, there being a formed back rest 66 secured within the upper portion of said frame.

A; substantially rectangular seat, generally indicated at 67, 18 positioned between the

legs

64 and 65 and pivotallyjoined thereto by the transverse rivets 72. The seat 67 includes the lJ-shaped tubular frame 68, the free ends of which have caps 69. The free ends are interconnected by the cross bar or strip 70 whose ends are projected into corresponding transverse apertures 71 adjacent the caps 69. Rivets- 72 extend through

legs

64 and 65 and through corresponding adjacent portions of the tubular frame68' u'pon opposite sides of said seat and intermediate itsfront and rear edges.

There are also provided a pair of upright

rear legs

73 and 74 arranged at an acute angle respectively to

front legs

64 and 65, in advance of said legs or lying in substantially the same plane. Said legs adjacent their upper ends and upon their interior surfaces having secured'thereto the mounting brackets 73' which pivotally connect as by the rivets 74 rear portions of tubular frame 68. Caps 75 are provided for the upper ends of said rear legs, and in the fully opened position of the chair shown in Fig. 11, said caps operatively engage the undersurface of 64 and 65.

Links '76 are pivotally connected at their one ends at 77 to

legs

73 and 74 and at their other ends are pivotaily connected at 78 to the front legs to complete the chair assembly.

A substantially rectangular seat platform 79 is posigoneitliupon the top surface of frame 68 as shownin Referring to Fig. 13, the frame 68 has an outer convex surface and top and bottom arcuate edges 81 andfi respectively and an inner upright wall portion 82.

Said wall portion 82 has at spaced points thereon a plurality of horizontally extending slots 83 whichare adapted to cooperatively receive the offset ends the clips 84.

Said clips are rotatively positioned against the under surface of platform 79 and secured thereto by the-rivets" when 4 t 85, so that the clip ends 90 will be cooperatively and retainingly positioned within slots 83 of frame 68- whensaid clips are at right angles to an adjacent portion of said frame, as in Fig. 14.

Clip 84 has toward one end the upright wall portion 86 which is so formed as to be arranged at an acute angle to the longitudinal axis of clip 84 inasmuch as the side edge 87 is shorter than the opposite side edge 88. Thisinclination of the substantially upright wall 86 provides the clearance opening 89 to facilitate rotation of clip 84 so that the clip end 90 enters slot 83 and so that a portion of the upright wall 86 will operatively engage wall portion 82 of said frame when the clip is in the position shown in Fig. 14.

Furthermore, the clip end 90 is inclined as at 91 whereby upon adjusting said clip to the position shown in Fig. 13, the trailing undersurface of clip end-91 will operatively and wedgingly engage the wall'portion of said frame, which defines the slot 83, to thereby tightly draw up the platform 79 against the top edge 81 of'the tubular frame 68.

The rear undersurface portion of platform 79 is secured to the strip 70 bya pair of right angular clips 92 riveted at 93 to the undersurface of platform 79 and riveted at 94 to said strip.

Having described our invention reference should now bolted to the claims which follow for determining the scope thereof.

We claim:

1. In a folding chair having a pair of front legs, a pair of rear legs and a seat between said pairs of legs and pivotally mounted thereon, said seat comprising a hollow tubular frame lying in a single plane, said frame having a plurality of spaced horizontally extending coplanar slots formed in its inner wall, a platform positioned upon said frame, and a plurality of locking clips pivotally secured upon the under surface of said platform adjacent said frame, each clip being vertically offset below said platform extending horizontally through and retainingly positioned in an adjacent frame slot, the offset end of each clip lying in a plane inclined laterally to the plane of said clip for wedging engagement with a portion of said frame forming the top boundary of the slot for drawing up said 'platform'into tight engagement with said frame.

2. The combination of claim 1, there being an upright wall on each clip joining said offset, and said wall operatively engaging the outside wall of said frame adjacent said platform when said clips are in platform locking position at right angles to the corresponding inner wall of said frame.

References Cited in the file of this patent UNITED STATES PATENTS 486,305 Thompson Nov. 15, 1892 631,750 Pleukharp Aug. 22, 1899 661,404 Hubbard- Nov. 8, 1900 834,462 Faught Oct. 30, 1906 894,020 Levick July 21, 1908 950,739 Baum Mar. 1, 1910 1,071,509 Courson Aug. 28, 1913 1,095,636 Hummer May 5, 1914 1,385,102 -Winters et a1. July 19, 1921 1,411,621 Goodard Apr. 4, 1922 1,844,262 Pierson Feb. 9, 1932 1,873,932 Hunter Aug. 23, 1932 1,905,862 Harman Apr. 25, 1933 2,390,878 Greitzer Dec. 11, 1945 2,516,933 Wallance Aug. 1, 1950 2,525,126 Greitzer Oct. 10, 1950 2,584,471 Kohen Feb. 5, 1952 2,615,770 Curtis Oct. 28, 1952 2,619,394 Mahr Nov. 25, 1952 2,632,498 Curtis Mar. 24., 1953 2,656,881 Hamilton Oct. 27, 1953 2,666,478 Shwayder Ian. 19, 1954