US2260726A - Lower rail for venetian blinds - Google Patents

Description

Oct.- 28, 1941. H. s. ROSENBAUM LOWER RAIL FOR VENETIAN BLINDS File'dNov. 25, 1940 In venior JVarrg S. fibsen 110,

A iiomey with the rolled edges ll.

Patented Oct. 19 41 I LOWER BAIL FOB VENETIAN BLINDS Harry S. Rosenbaum, Baltimore, Md. Application November 25, 1940, Serial No. 387,113

Claims.

This invention relates to Venetian blinds and. has particular reference to the construction of the bottom rail of such blinds.

It is an object of the present invention to provide a bottom rail formed entirely of metal so A constructed as to avoid the possibility of warping or twisting, while at the'same time being extremely light in weight and ornamental in appearance.

A further object of the invention resides in the construction of a bottom rail so formed as to permit the attachment of the conventional blind tapes and operating cords without the use of external means such as tacks or the like, such attaching means being easily and quickly performed without the aid of tools.

Another and important object of theinvention is the provision of a bottom rail that is extremely simple in construction, is strong, durable,

cheap to manufacture and is highly convenient in use.

Other and important objects of the invention will present themselves during'the course of the following description, accompanying drawing, wherein Figure 1 is a fragmentary side elevation of the lower part of a Venetian blind showing the invention in use,

' Figure 2 is an enlarged end elevation thereof.

Figure 3 is a fragmentary perspective view of one end of the bottom rail,

Figure 4 is a transverse section taken on line HofFigureland, v

Figure 5 is a fragmentary plan view of one end of the rail.

Referring specifically to the drawing, the numeral 5 designates a Venetian blind as a whole, having the usual slats 8. Supporting tapes I are employed for the slats as is-customary. It should 'be noted here that the tapes as here employed ends formed in an integral loop have their lower instead of the usual separate attaching ends.

The numeral 8 indicates the lower rail as a whole, embodying an elongated channel body portion 9 having inclined sides III. The sides l0 have their upper free edges formed into rolled portions ll. L The channel body 8 is closed by ends ii. The channel 8 is adapted to be closed by a sliding cover i3 arched throughout its length and having its edges engaging beneath the rolled portionsllofthesideslll.

Arranged inwardly of the ends of the rail 8 and formed in the side walls It, are slots ll. The slots ll areformed in the walls ID in parallelism Arran ed intermedireference being had to the namental and attractive ate the ends of the slots H' are vertically arranged slotsll, communicating with the slots H and passing entirely through the rolled edges ll. As clearly shown. the slots l4 and I! are arranged in pairs diametrically opposite to each other in the side walls ill. As shown, when in use the slide II normally closes the slots [5. The

slots I4 and ll serve as a means for attaching the tapes I.

The numeral ll designates slots formed in the slide member II, the number of such slots corresponding to the number of slots l4 and ii. The slots l6 terminate in enlarged circular opening i1 and IS, the opening I! being relatively larger in diameter than the opening l8. The

slots l6 and openings I1 and it serve as attach- I ing means for the lift cords It. The cords l9 azenknotted at their lower attaching ends as a In use, when it is desired to assemble the blinds, the slats 8 are first mounted in the usual way on the supporting tapes 1 with the lift cord passing throughv all the slatsand projecting for a substantial distance below the lowermost slat. The cord is then knotted at its'end as shown at 20. As before pointed out, the tapes are formed in a complete loop at their lower ends. The slide II is then moved outwardly of the channel a distance sumcient to uncover the slots IS. The loops of the tapes are then inserted edgewise through the slots I! and into the slots ll. The slide I3 is then moved into its normal position to cover the slots ll, thus providing a means for preventing accidental displacement of the tapes from the'slots ll. The knots 20 are then inserted through the large openings l1 and moved longitudinally of the slots l6 to lie beneath the smaller openings Id. The openings [8 are of such size as to prevent passage of the knots therethrough. a

It will be seen from the foregoing that an extremely simple means has been provided for mounting the lower rail of the blind. The meth- 0d of assembly is such as will permit the attachment of the lower rail with a minimum of efiort.

Removal of the rail for any purpose is equally simple. -No tools are required to assemble or disassemblethe device. The rail is formed of light gauge metal and its design presents an orappearance.

It is to be understood that the invention is not limited to the precise construction shown, but

that it includes within its purview whatever changes fairly come within either the rterms or the spirit of the appended claims.

ing the loops in the slots and means formed" the channel for attaching the knotted end oi the cords.

2. In a Venetian blind, the combination with a lower rail, supporting tapes for the blind having their lower extremities formed in a continuous loop, lift cords for the blind having their lower ends knotted, said lower rail being of channel formation having a removable top, slots formed in the channel for the reception o! the tape loops, slots formed in the removable top for the reception of the knotted ends of the cords and .means whereby said removable top serves to retain said tapes in the first named slots.

3. In combination a Venetian blind having supporting tapes and lift cords, of a lower rail for said blind, said rail being of channel format-ion having a removable top,'said channel having slots formed in its opposite side walls for the reception of said tapes, said top having slots iormed therein for the reception oi said cords,

said top when in the closed position serving to retain the tapes in the first named slots.

4. A lower rail for Venetian blinds comprising an elongated channel member, a slidable top for closing-said channel, T-shaped slots formed in said channel tor the reception of tapes carried by the blind, said slidable top when. in position serving to close said slots. slots formed in said top and terminating in enlarged opening, said last named slots adapted to receive the ends or lift cords carried by the blind.

5. A rail of the character described comprising an elongated channel member having closed ends and inclined sides, said sides having their upper edges rolled, a top member for the channel slid able under the rolled edges. said top member formed convex transversely, diametrically oppositely arranged transverse pairs ,of slots formed in the sides, vertical slots intersecting said slots and the rolled edges, said top provided with 101; gitudinal slots, said last named slots terminating in enlarged circular openings, as purposes specified.

and for HARRY s, nosnrznspu.

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