US2523038A - Venetian blind - Google Patents

Description

Selpt. 19, 1950 S, F. MAYER VENETIAN BLIND Filed Feb. 13, 1948 g j j ,//f//////////. .A

t Patented Sept. 1,9, 1950 VENETIAN 'BLIND Siegfried F. Mayer, Lock Haven, Pa., assignor to "May-Sloan Inc., Mill H of Pennsylvania all, Pa., a corporation t ApplicationFebruary 13, 1948,` Serial No. l8,2'05

(Cl. i60- 173) 4 Claims.

The `present `invention relates to Venetian blinds and aims generally to improve the constructionof .existing blinds of that type.

A primary object of the invention is the provision of an improved Venetian blind of the metal or flexibleslattypein -which the slats are readily .removable from the blind for cleaning and replacement.

A further objectof thelinvention .is the provisionof an improved Venetian blind construction The base bar IUI is further suspended fro-inthe side rail by the usual fabrictapes I3 and L4 disposed on opposite sides of the bar and connected at their lower ends thereto as `by being clamped between .the opposed plates comprising the bar I0. The tapes I3 and I4 are disposed on opposite which ,will be of pleasing appearancevas well as of vsimple construction and of economical cost of manufacture.

.Other aims and objectsof the invention will be apparent topersons skilled in the art to Which the inventionrelates `from ,a consideration of the accompanyingdrawings and annexed specificationillustrating and.. describing ahpreferred form of the invention. s f

In the drawings- Fig. .lis a perspective view of aportio-n of a Venetian blind construction illustrating particularly the construction v,and yarrangement of the base bar,'tapes, elevating cord and slattherefor;

Fig. 2 is a similar view illustrating 'the man` nerofremovingor,inserting a slat in the blind;

Fig. 3 is a vertical sectional View of the blind as taken in the plane ofthe elevating cords;

Fig. l is a horizontal sectional View as taken onithe line 4 4 of Fig. 3; and 4 Fig. 5 is an end elevation ofthe portion of the blind shoWn'inFig. l.

Referring to the drawings, the Venetian blind ofthe-.invention comprises abase-.bar or bottom railllu, of suitable length toflt betweenfthe side rails of a `#window frame in which the .blind is used, ,and which advantageously mayrcomprise aipair of opposed angularly bentplates secured inv-assembled relation as by means of a screw or nail I I, said basebar IU'being suspended from an upper rail (not shown) by means of elevating cords I2, as is usual in the art. As illustrated, the base bar or bottom rail may be formed of tubular sheet metal construction, and has suicient weight to insure that the blind will hang evenly.

The lower terminal ends of the elevating cords I2 are suitably secured to the base bar I0 adjacent the ends thereof, and preferably are secured thereto inwardly of the terminal ends of the bar IU, a distance not greater than the Width of the sides ofthe elevating cords, and thus are disposed adjacentv the end of the bar toenhance the attractive appearance of the blind. The tapes I3 and I4 are of the ladder type, being interconnected by means of a plurality of vertically spaced Slat-supporting cross tapes or webs I5 lof the textile material, secured as by stitching rIii to the inner faces of the tapes I3and I4. The cross tapes I5 are of less width than the tapes I3 and I4, and at least some of them are secured to the tapes I3 and IA adjacent the outer edges thereof, so as to be disposed outwardly of the elevating cords I2. This insures proper alignment of the tapes and slatsrelative to the elevating cords I2`. As herein illustrated, alternate tapes I5 may be secured to tapes I3 and I4 along' opposite edges so as to be staggered on opposite sides of the cords I2.

The slats 2t of the blind are preferably formed i ofthe usual metal Venetian blind slats,'being .The end-portions of the slats 20 are slotted for l a short -distance approximately equa1 to onehalf the Width of thepslat to receive the elevator cords I2. Such slotted portion includes a restricted longitudinal slo-t 2| open at the ends of theslots and a transverse cord guideway 422 of substantially greater width than the slot 2|. Preferably, the combined slots may be T-shaped, the guideway portion 22 being of suitable length and width to permit free tilting and raising and lowering of the slats relative to the cords I2. The slot 2| is preferably much narrower and substantially less in Width than the diameter of the cord I2. Due to the flexibility of the material of the Slat 20, the end portions on opposite sides of the slot 2| readily separate to permit the cord I2 being passed therethrough, as is illustrated in Fig. 2.

To facilitate entry of the `slats 2n between the 3 tapes I3-III and around the cords I2, the corners, between the sides and ends as well as between the ends and sides of the slot 2|, are rounded as at 23.

As will be apparent from Fig. 1, the ends of the slats 20 rest loosely on and are supported by the cross webs I5. Being of flexible sheet material, they are readily bendable along a transverse'line intermediate their ends to shorten the effective length of the slats 20 and permit the slotted end portions thereof to be pulled past the cords I2 to remove the slats from the blind. In this action the resilient end portions on opposite sides of the slots 2I readily flex outwardly to permit passage of the cord I2 therethrough lwithout deforming the shape of the slat.

From the above it will be seen that the invention provides a Venetian blind of extremely simple construction and which may be economically manufactured. The slats may be quickly and easily removed from the rblind while the blind is in lowered position and between the side rails of a window frame. The disposition of the supporting tapes I3 and I4 at the terminal ends of the blind and on opposite sides of the cords II enhances the attractiveness of the blind.

The present application is a continuation in part of my prior copending application Serial No. 662,783, filed April 17, 1946, now abandoned.

Although I have illustrated and described a preferred embodiment of the invention, I do not intend to be limited to the specific details thereof as the scope of the invention is best defined in the appended claims.

I claim:

1. A Venetian blind comprising a horizontally disposed base bar, a pair of elevating cords each secured at one end to said base bar adjacent an end thereof, a pair of tapes secured to said base bar adjacent opposite ends thereof and having portions disposed on opposite sides thereof in transverse alignment with said cords, a plurality of vertically spaced transverse Slat-supporting webs disposed between opposed portions of each tape at least some of which are disposed outwardly of said elevating cords and a plurality of slats of flexible sheet material having longitudinally slotted ends supported on said webs, the slotted ends of said slats including an end opening longitudinal slot of less width than said cord and an angularly disposed cord-receiving guide, the end portions of said slats opposite said end opening longitudinal slots being flexible, said flexible slats being transversely bendable intermediate their ends to permit movement of the longitudinally slotted end portions thereof past said elevating cords.

2. A Venetian blind having removable flexible sheet metal slats comprising a base bar, a pair of each pair and disposed adjacent to and outwardly of said cords, and a plurality of flexible sheet metal slats supported adjacent their ends on said webs, the end portions of said slats including a longitudinal slot of less width than said cord extending inwardly from the ends of said slats and an enlarged cord-receiving opening at the inner end of said slot.

3. A Venetian blind comprising a horizontal weight providing base bar, a pair of ladder-tapes connected at their lower ends to one end portion of said base bar, the outer vertical edges of the tapes .being adjacent the end portions of said bar, a lifting and lowering cord connected at its lower end to the end portion of said base bar and extending upwardly between said laddertapes, a plurality of cross-tapes between said ladder-tapes and defining supporting steps for adjacent end portions of insertable and removable slats, and bendable sheet metal slats each having a keyhole slot in one end thereof, said slotted one end being adapted to rest on the cross-tape and said slat being attachable to said cord by way of the slot, at least some of said cross-tapes disposed outwardly of said cord preventing accidental displacement thereof from said slot.

4. A Venetian blind comprising a freely hanging heavy metal horizontally disposable base bar made up of complemental sections, a pair of ladder-tapes connected at their lower ends to one end portion of said base bar, the outer vertical edges of the tapes being adjacent the end portions of said bar, a, lifting and lowering cord connected at its lower end to the end portion of said base bar and extending upwardly between said ladder-tapes, a plurality 0f cross-tapes between said ladder tapes and defining supporting steps for adjacent end portions of insertable and removable slats, said cross-tapes being disposed outwardly of and adjacent said cord, and a plurality of thin steel slats having keyhole shaped slots in their end portions, said slats being bendable whereby said end portions may be inserted between the ladder-tapes to rest on the crosstapes and said keyhole shaped slots releasably engaged with said cord, said cross-tapes preventing accidental dislodgment of said cord from said keyhole slot.

SIEGFRIED F. MAYE'R..

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

UNITED STATES PATENTS Number Name Date 279,835 Smith June 19, 1883 691,603 Coveney Jan. 21, 1902 803,696 Long Nov. 7, 1905 2,033,834 Kirsch Mar. 10, 1936 2,123,010 Kahn July 6, 1938 2,387,419 Thexton Oct. 23, 1945

Images