US 2756817 A
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Description (OCR text may contain errors)
July 31, 1956 A. J. TOT. 2,756,817
VERTICAL VENETIAN BLIND Filed Dec. 26, 1952 INVENTOR. ANDREW J- T077 ATTORNE United States Patent() VERTICAL V EN ETIAN- BLIND Andrew J. Toti, Modesto, Calif.
Application December 26, 1952, Serial No. 327,986
6 Claims. (Cl. 160-473) This invention relates to Venetian blinds in which the slats are suspended to hang vertically from their upper ends, and their lower ends are generally free. The object of the present invention is to provide means for stabilizing the lower ends of the slats to hold them from swinging about too freely and to tend'to keep them evenly spaced when separated more or less to control the light.
As the invention does not concern how the slats are suspended at their upper ends nor how they are shifted to spread across the window space or retracted to one side, nor tilted to control the light, the description will be confined to the stabilizing device.
7 In the drawings Fig. 1 is an elevation showing the slats opened or spaced as wide as they will go and with my improved stabilizer in place.
Fig. 2 is a top plan view of Fig. 1 and of course showing the broken off slats of Fig. 1 in section.
Fig. 3 shows the stabilizer folded to closed position with the slats omitted.
Fig. 4 shows the opposite side of Fig. 3.
Fig. 5 is an edge view of one of the short links of the stabilizer.
Fig. 6 is a side view of the short link of Fig. 5.
Fig. 7 is a side view of one of the long links of the stabilizer with its normally doubled over ends outfolded to fiat position as before bending.
Fig. 8 is a View taken on the line 88 of Fig. 2.
Fig. 9 shows a modified pivotal connection between the short and long links.
In further detail the slats are designated 1 and are indicated as plain flat slats but insofar as the invention is concerned they may be of the common arcuate or crowned sheet metal type. Numeral 2 designates the stabilizer considered as a whole, and comprises a connected series of short 3 and longer 4 thin flat light links with their ends pivotally connected as at 5, and each slat loosely connected to one of the links as at 7 through means of a ring 8 formed on one link of the stabilizer engaging the margin 9 or a hole 10 formed through the slat close to one of its vertical edges.
The margins 5 of the hole 10 and ring 8 are relatively narrow compared to the openings so that when engaged as shown in Figs. 2 and 8 it will provide a very loosely engaged coupling of one edge of each slat with a ring of the stabilizer so that each slat will be free to turn on its own vertical axis for closing and opening the blind.
The stabilizer links are provided with stops 11 and 12 to limit their slat opening movement to somewhat less than the widths of the slats so that the slats Will overlap on their vertical margins when revolved on their vertical axes to closed position, and when the slats are all pulled over to either end of their travel the links of the stabilizer will be touching each other as shown in Figs. 3 and 4.
The pivotal joints 5 may be any free Working pivot, such as holes 5 formed in one of the links and projections 6 formed on the other to permit very free movement in the holes, and the ends 4' and 4" of the long links are doubled over; along'the dotted lines 13' and 14' of Fig. 7 to l'oosely'embrace opposite sides of the shorter links 41t0 hold the: pivotal 'joi'nts from coming apart, and also to form the stops at; points 11 and 12 to stop further opening, movement of the stabilizer than required for-maximum desired opening: of: the slats, andat which point the links are still. slanting upwardly in; zig-zag'relation from their points: of; support: in.the2 openings. 10: at the edges of the slats as shown in Fig. 1 and still have a slight urge by the effect of gravity to open somewhat further were it not for the stops mentioned.
The rings 8 by which the stabilizer is suspended from the slats is shown struck up from one end of the long link 5 by bending it along the dotted line 15 of Fig. 7. To facilitate engagement of the rings 8 with the openings 10 in the margins of the slats the margins may be slit to the holes 10 as at 16 (shown in Fig. 8).
Instead of the pivotal joints being as described they may be any other free joints or as shown in Fig. 9 wherein both links 4a and 3a, may be simply apertured at their overlapping ends and held by a loose rivet or the pivot 17 may be the shank of a common snap fastener pushed into its socket ring 18 but with the shank of the snap fastener long enough to permit free pivotal action of the joint thus efiected. In this construction small lugs 19 bent up from the ends of the long link 4a form the stops 11 and 12 of Fig. 1, and the ring designated 8' in Fig. 9 may be formed on the short link as indicated. The links are preferably made of thin sheet aluminum so as to be fairly stiif or rigid yet light, though they may be of hard plastic, or wire.
In operation the series of links have no tendency to force the slats apart as they are independent, but spread as the slats are pulled apart and close as the slats are closed, and in whatever position the slats are they are stabilized in such position, both in spacing as well as in lateral alignment. It will also operate upside down but not so Well.
Having thus described my invention and the manner of its operation what I claim is:
1. A stabilizer for the lower free ends of vertically hanging Venetian blind slats comprising a series of links loosely pivotally connected together at their ends and extending horizontally across one side only of the blind and loosely connected with the vertical edges of successive slats adjacent every other pivotal connection of said series and with the intermediate connections of the series elevated so as to exert a slight downward pressure tending to spread the links, and stop means provided on said links to limit them to zig-zag arrangement when the series is fully extended.
2. In a structure as set out in claim 1 the loose connection of the links with the slats comprising marginal loops on the slats engaging loops carried by the links and suspending the series of links in horizontal extension against the vertical edges of the slats along one vertical side only of the blind.
3. In a structure as set out in claim 1 the loose connection of the links with the slats comprising marginal loops on the slats engaging loops carried by the links and suspending the series of links in horizontal extension against the vertical edges of the slats when open and against either side of the slats when closed either way respectively.
4. In a structure as set out in claim 1 said links being of thin flat material and their pivotal connections holding them in flatwise overlapping relation while free to articulate.
5. In a structure as set out in claim 1 said links being of thin flat material and their pivotal connections including return-bent ends embracing opposite sides of adjacent 3 links holding the series in flatwise relation while free to References Cited in the file of this patent artlculate- UNITED STATES PATENTS 6. A stabrhzer for the lower end of a Venetlan blmd having vertically hanging slats, comprising a series of 1858801 Bolard May 1932 links loosely pivotally connected end to end, means form- 5 2,135,647 PY 1938 ing a loose connection from each slat collectively sus- 2,158,454 ZQbma May 1939 pending said series in horizontal extension across the 2579910 Dlxon 1951 blind from points below the horizontal centerline of the 2602502 Betancourt Iuly 1952 series when so suspended, and means limiting the exten- 2616497 McCarthy 1952 sion of said series to maintain an up and down zig-zag 10 2680480 Harlu June 1954 relation of the links whereby a slight gravitational tendency to spread the links will be induced.