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Publication numberUS2490318 A
Publication typeGrant
Publication dateDec 6, 1949
Filing dateApr 18, 1947
Priority dateApr 18, 1947
Publication numberUS 2490318 A, US 2490318A, US-A-2490318, US2490318 A, US2490318A
InventorsPadon Preston M
Original AssigneePadon Preston M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Folding table legs with actuator gravity lock
US 2490318 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Dec. 6 1949 P. M. PADON 2,490,318

FOLDING TABLE LEGS WITH ACTUATOR GRAVITY LOCK Filed April 18, 1947 I 2 Shets-Sheet l Dec. 6, W49 P. M. PADON 2,499,313

FOLDING TABLE LEGS WITH ACTUATOR GRAVITY LOCK Filed April 18, 1947 2 Sheets-Sheet 2 wimwe PRESTON M. PADON Patented Dec. 6, 1949 UNITED STATES TENT OFFICE FOLDING TABLE LEGS WITH ACTUATOR GRAVITY LOCK 2 Claims.

This invention relates to folding tables, and more particularly to folding tables of the type known as card or bridge tables.

An object of the invention is to provide an improved folding table of the type indicated having hinged leg members with a locking mechanism of an improved and simplified structure adapted to operate by gravitation and without the use of springs.

A further object of the invention is to provide an improved and simplified card table of the type indicated conforming in design with the modern metal type of furniture and embodying an improved locking mechanism operable either by gravity or manually as desired, Without the use of springs or spring-controlled catches.

Further objects will more particularly appear in the course of the following description.

The invention consists in the novel construction, arrangement and combinations of parts hereinafter more particularly described and claimed.

Two sheets of drawings accompany is specification as part thereof in which like reference characters indicate like parts throughout.

In the drawings:

Figure l is a perspective View of a table embodying the present invention looking up from underside;

Figure 2 is a bottom plan View showing legs nested on top;

Figure 3 is a section taken on line 3-3 of Figure 2 with legs dotted in open position;

Figure 4 is a transverse cross section taken on line l-t of Figure 3;

Figure 5 is a cross section taken on line 5-5 of Figure 1 under edge of the table where the end of the locking rod is guided;

Figure 6 is a perspective view of the locking member and rod, and

Figure '7 is a fragmentary perspective illustrating the medial locking loop on the hinged side of the leg frames.

In the embodiment of the invention illustrate in the drawings, the table comprises a rectangular top a having a depending peripheral flange 2 within which the leg frames are adapted to nest when the table is not in use.

To the table top are hingedly secured two substantially rectangular leg frames of which the opposed sides 4-4 function as legs; one side 5 connects the bottoms of the legs when the table is opened, and the opposed side 'i is hingedly secured to the under face of the table top as by hinges 3-8. The two leg frames which as entireties are identified as 3, are hinged to the under face of the table top so that these leg frames are substantially parallel when opened and each leg frame is slightly spaced from the adjacent side of the peripheral flange 2 in a manner to cooperate with said flange in a manner hereinafter more particularly explained.

The hinged side of each leg frame and the opposite side 5 are provided with medial aligned loops adapted to cooperate with a locking rod i i of sufficient length to extend across the table on its underside with its ends freely slidable in guideways it formed transversely of the peripheral flange 2, as illustrated in Figures 1 and 3. Adjacent each end of the locking IOd i4 is fixedly secured a relatively heavy locking bar iii herein illustrated as of rectangular shape and adapted to cooperate with the loops formed in the leg frames to lock .said leg frames in either open or closed position, as will hereinafter appear.

For the purpose of securing the leg frames in the open position the hinged side I of each leg frame is provided with a medial loop well illustrated in Figures 1 and 5, which comprises spaced arms iii-l0 extending perpendicular to the ad- .iacent aligned portions of the side ?--l, and which legs Ill-l0 are continued perpendicularly through portions H ll which are again extended through portions 12-42, which portions |2--'i 2 are in alignment and substantially parallel with the portions of the sides 1-4 but spaced in two directions therefrom. The portions l2-l2 are further extended into a medial loop E3 of a size and shape conforming to the size and shape of the locking rod it so as to receive said looking rod and permit said locking rod to gravitate into said loop, as illustrated in Figure 7. From that figure it will also be observed that when the locking rod [4 has gravitated into the position illustrated in that figure, the locking bar E5 fits snugly within the rectangular portion of the loop formed by the opposed arms |l--H and l2!2, the portions of the loop [2-42 and loop it being disposed when this position between the locking bar is and the adjacent side of the peripheral flange 2 which is removed from Figure '2. When the leg frame is in folded position, as illustrated in Figure 2, it will be observed. that the portions iii-NJ of the loop lie against the under face of the table top while portions 1 i--H stand perpendicular with respect to the table top and the portions i'2l2 and medial loop is overlie the lockin rod Hi.

The side of the leg frame 5 opposed to the hinged side thus described, is formed with a single medial loop 6 which when the table is in open position extends outwardly with respect to the leg frame, but which when the leg frames are folded into nested position, extends over and frictionally engages the end portions of the locking rod [4 intermediate each of the locking bars l and the adjacent side 2 of the peripheral flange of the table, thus frictionally securing the leg frames in their folded position. As one leg will overlie the other when in folded position, the loop 6 is offset on one leg frame as by bends I! to give added depth to that loop 6.

In operation with the table folded as illustrated in Figure 2, to open, the opposed sides 5 of each leg frame are engaged by the fingers of a hand and opened sufficiently to disengage the medial loop 6 from its frictional engagement with the end of the locking rod M. The table then being inverted, the leg frames will rock of their own accord to open vertical position, and as they do so the locking rod M with its associated locking bars will drop by gravity into the medial loops l3 formed in the hinged sides 'I'! of the leg frames, as shown in Figures 1 and 5, in which position the table legs are locked in their open position.

To close the table the locking rod I4 may be lifted by hand to disengage the locking bars [5 and thus permit the folding of the leg frames to their folded position, or alternatively, the table can be inverted whereupon the locking rod I4 and its associated locking bars [5 will gravitate to the unlocked position, thus permitting the leg frames to be folded down into locked position, such as illustrated in Figure 2.

The precise size, shape and formation of the various parts may be modified to conform with the desired design for ornamental purposes within the scope of the present invention as pointed out in the appended claims.

Having thus fully described my invention, I claim:

1. Folding table comprising a top having a depending peripheral flange, two pairs of legs, each pair of legs connected at their upper ends by aligned hinge parts, and a medial locking loop, said locking loop formed with spaced arms parallel with the legs, parts perpendicular to the arms extending therefrom, aligned parts extending perpendicular to said last mentioned parts and parallel with the hinge parts and a medial loop connecting the inner ends of said last mentioned aligned part disposed perpendicular thereto and parallel with the spaced arms, complementary hinge members for securing the hinge parts to the under face of the table, oppositely disposed guide slots formed in the flange of the top in alignment with the medial loops in the locking loops, and a locking rod having its ends slidable in the said guide slots, said locking rod formed with transverse locking bars conforming in size and shape with the locking loops and adapted to gravitate into said locking loops when the legs are in open position, with the medial loops thereof disposed intermediate the table flange and locking loop and with the locking rod supported by said medial loops.

2. Folding table comprising a top having a peripheral flange, said flange formed with oppositely disposed guideways perpendicular to the face of the top, a locking rod formed with transversely disposed locking bars adjacent each end and arranged to slide freely with its ends disposed in said guideways, legs arranged in pairs, the legs of each pair connected at their upper ends with aligned hinge parts, and a locking loop, said looking loop including an offset medial loop formed and proportioned to receive portions of the locking rod, when the legs are in their open position,

intermediate the locking bars and the table flange, adjacent the lower ends of the guideways and to raise and support said rod adjacent the under face of the table when the legs are in their folded position and complementary hinge parts securing the hinge parts of the legs against the underface of the top and perpendicular to the locking rod. PRESTON M. PADON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 965,338 Smiljanic July 26, 1910 1,709,928 Whitney Apr. 23, 1929 FOREIGN PATENTS Number Country Date 319,262 France Nov. 8, 1902

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US965338 *Aug 14, 1909Jul 26, 1910Mark SmiljanicCollapsible table or seat.
US1709928 *Aug 3, 1926Apr 23, 1929Samuel ZimmerService tray
FR319262A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2572474 *Jul 23, 1948Oct 23, 1951Hamilton Bertis FCollapsible table with lock means for paired legs
US2682216 *Mar 16, 1950Jun 29, 1954Shields James JEndless conveyer press for flattening bags
US2723173 *Jan 15, 1954Nov 8, 1955Gerald S CarrickRetractable supports and actuating means therefor
US2829019 *Dec 31, 1956Apr 1, 1958American Seating CoFolding paired leg table with lock
US3259080 *Dec 3, 1965Jul 5, 1966Andre LarocheCollapsible spring stand
US4557200 *Aug 15, 1983Dec 10, 1985New Products I, Ltd.Tray with folding legs
US6253688 *Mar 10, 2000Jul 3, 2001Frank LorPortable table
US6561107 *May 18, 2001May 13, 2003Lockermate CorporationFoldable shelf assembly
US6712009 *Jan 25, 2002Mar 30, 2004Sedus Stoll AgTable with folding legs
US8490554Jun 29, 2012Jul 23, 2013Ki Ho JinFoldable table
US20060288917 *Jun 22, 2005Dec 28, 2006Wood George WTall portable locker table with embedded peg hanger
Classifications
U.S. Classification108/131
International ClassificationA47B3/00, A47B3/08
Cooperative ClassificationA47B3/08
European ClassificationA47B3/08