US1852913A

US1852913A - Flexible blind structure

Info

Publication number: US1852913A
Application number: US451252A
Authority: US
Inventors: Bauer Conrad
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-05-10
Filing date: 1930-05-10
Publication date: 1932-04-05
Anticipated expiration: 1949-04-05

Description

April 5, 1932. c. BAUER FLEXIBLE BLIND STRUCTURE Filed May 10, 1930 Patented :Apr. 5,

coNnAnBAUnR, onmoun'r omvna, rnNnsYILvANrA v FLEXIBLE BLIND srancmunn Application filed May 10,

and durable and at the same time inexpensive to manufacture and wherein the slats may either spread apart to treely'admit light and air or may be brought snugly together to exclude sunlight or rain.

For this purpose I have invented a novel slatted blind structure wherein the slats are connected togetherby means of links whose ends are slidably connected to adjacent slats whereby a limited relative movement of the slats is obtained. Specifically the links are formed of flat metal and have longitudinally slotted holes in their ends, which holes are engaged by pins on the two adj alap and are engaged by the same pins.

The links are formed of resilient metal so 1 In the accompanying drawings wherein I have illustrated a practical embodiment. of the principles of my invention, Fig. 1 is a diagrammatic view in side elevation illustrating my improved blind depending from a roller and its edge engaging a guide.

Fig.2 is a front elevation joining a por tion of the blind with its edges engaging the guides. j t I Fig. 3 is a broken rear elevation showing the link connection between the slats. c

Fig. 4 is a sectional view taken along the line H in Fig. 3.

Fig. 5 is a view showing the blank from which one of the boxings is made.

Fig. :6 is a view of one of the links. Fig. 7 is a broken elevation showing the method of attaching the bottom bar to the lowermost slat.

Referring to the drawings,- 1 represents the cent slats. The ends of adjacent links over- I flexible flat metal, such, for. instance, as cop- :70,-

1930. 1 Serial Nd. 451,252.

roller at the top of the window opening and upon which the blind is rolled, and'whose'rotation infthe proper direction raises or low- I ers the blind. I r

2 represents the guide atthe sides of the window frame and in which the edges of the blind are contained and move. Theseguides may beofchanne-l cross sectional shape."

The blind is composed ofa plurality of horizontally disposed slats 3 which may be of 5' wood. At its lower :end the .blind is provided with a bar 4 which also may be of wood a and when the blind is fully lowered said bar rests onthe'cross bar 5 which connects the lower ends of the guides 2. I i

The slats are connected together adjacent to their ends and also at their centers bythe links 6. One of these links is shown separately inFig. 6, and said links are formed of The links 6 may be stamped out and are of substantially the shape shown, being pro I vided at either end with a longitudinally elongated hole or slot 7. 7

The links 6 are disposed atright angles to the slats and have their opposite ends engaged by pins which are specifically the. screws 8 and which are driven into the slats. Thus a pair otadjacent slats are movably connected together and may be brought. into snug contact with eaohother' as illustrated in? the upperportion of Fig. 1 Qor may be separated as illustrated in the lower portion of Fig. 1 and also inFigs. 2, 3 and 4. The degree of separationofcourse depends'upon 1 the lengthot the slots 7 A slat 3 is inlike 1 manner connected by the link 6 to the slat above and below it and the ends of the links overlap as best illustrated in. Fig. 4,the adjacent slots being engaged by the screw 8..

' To hold the links in proper alinement and I relation with the slats, I provide metal boxings mounted on the slats and in which the ends of they links slide. Y

These boxings may be formed of strips 9 of sheet metal, as for =instance, cop'per, and simi- I lar in shape to that. shown in Fig. 5.. At one end "said strips are provided with a tonguelO of substantially the samewidth as the links 6, and adjacent to the other end the strip 9 is provided with a transversely disposed slot 11. Above the center of the strip 9, as shown in Fig. 5, the strip is provided with a second slot 12. The slots are of sufficient width to permit the links 6 to slide freely through the same. Below the upper slot 12 the body of the strip is pressed outwardly along vertical lines to form the box 13. Above the box 13 in Fig. 5 the strip is provided with a screw hole 14.

The strip 9 is bent around the slat 3 as best shown in Fig. 4 and the tongue 10 is inserted down through the slot 11 and bent up on the outside.

The boxing is held in place by the screw 8 which is inserted through the hole 14 and driven into the slat 3, the screw crossing the interior of the box 13 and engaging the slots 7 in the overlapped ends of the upper and lower links 6.

It is evident that when the blind is depending from the roller 1 with the bar 4 without under support, the slats will be separated, thus permitting air and light to enter. However, if the bar 4 rests upon the cross bar 5 and suflicient slack is provided in the blind, the slats will move into snug engagement with each other. The adjacent edges of the slats are formed to engage together to insure tight jointure. A like engagement is provided between the bottom edges of the lowermost slat and the bar 4.

The bar 4 may be similarly connected to the bottom slat 3. Thus I have shown vertically disposed plates 15, attached as by screws 16. to the rear face of the bar 4 and whose upper ends are provided with vertically elongated holes or slots 17. The upper ends of the plates 15 are within the boxes 13 of the lowermost slat and are engaged by the screws 8, the hole 17 being of sufiicient length to permit the slat to descend into snug engagement with the bottom bar or to be raised therefrom to the desired degree.

The links are preferably mounted on the inner side of the blind, thus being concealed and being protected from the weather.

It is evident from the foregoing that my improved blind structure is of simple and inexpensive construction, durable, and not liable to breakage, sufiiciently flexible to be readily wound up upon a roller or unwound therefrom with ease, and capable of being arranged to freely admit light and air or to be impervious to the entrance of sunlight or rain.

What I claim is In a flexible blind structure, the combination with a slat, of a boxing fitting on said slat and consisting of a single strip of sheet metal having a relatively wide body portion of sufficient length to entirely surround the slat with one end of the body overlapping the other, said body portion having a transverse slot in the overlapping end and provided with a second slot spaced from the remaining end of the body, the portion between the second slot and the last mentioned end being offset from the slat along the central portion of the body and the overlapping end being similarly offset, and a tongue on the overlapped end extending through the first slot and bent backwardly to lie against said overlapping end.

Signed at Mt. Oliver, Pa., this 8th day of May, 1930.

CONRAD BAUER.