US2579137A

US2579137A - Venetian blind

Info

Publication number: US2579137A
Application number: US79339A
Authority: US
Inventors: Bruner Rudy
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-03-03
Filing date: 1949-03-03
Publication date: 1951-12-18
Anticipated expiration: 1968-12-18

Description

Dec. 18, 1951 R. BRUNER VENETIAN BLIND Filed March 3, 1949 IN VEN TOR.

Patented Dec. 18, 1951 1 UNITED STATES PATENT OFFICE VENETIAN BLIND Rudy Bruner, New York, N. Y. Application March 3, 1949, Serial No. 79,339 1 Claim. (Cl. 1 60-173) This invention relates to Venetian blinds and more particularly to tilt rail and bottom rail construction and their association with the tapes and cords of such devices.

An object of this invention is to provide a novel v and improved construction in hollow-type tilt rails made of parts reasonably cheap to manufacture, easy to assemble and afiording secure attachment in a very simple manner of the tapes as well as guiding and anchoring means for the cords; features of such construction being also adaptable for hollow-type bottom rails in Venetian blind assemblies.

- Another object hereof is to provide novel and improved tilt and bottom rail constructions, which are of sheet metal or the like, and which require no screws, bolts, staples or similar means for attachment of the tapes and cords thereto, which include brackets and casings of novel and improved design and function, associated in novel and improved manner so that the device is efficient in carrying out the purposes for which it is intended.

Other objects and advantages will become apparent as this disclosure proceeds.

In the accompanying drawings forming part of this specification, similar characters of refer ence indicate corresponding parts in all the views.

Fig. 1 is a front view of a Venetian blind embodying the teachings of this invention.

Fig.2 is a fragmentary perspective view showing channel and cover construction to be'cut in proper lengths for use as tilt rails, and bottom rails if desired, in Venetian blind assemblies as for instance shown in Fig. 1.

Fig. 3 is an exploded perspective view. it bracket I have devised, one of which is mounted at each station of the tapes, within the casing member illustrated in Fig. 2, is adapted to anchor the ends of an associated pair of tapes and provide a guiding means for one of the cords used to bunch the slats. The manner of forming the ends of the tapes is also shown, so that it may be received onto mounting fingers included in the bracket structure.

Fig. 4 is a section taken at line 4-4 in Fig. ,1, showing the manner of assembly of bracket arid casing, the manner of attachment of the tapes which are led out of the casing through slots, or else, if desired said tapes may be led out of the casing as shown in Fig. 5.

Fig. 5 is a section taken at line 5--5, showing use of the bracket shown in Fig. 3 within the bottom rail; said bracket being here minus its cord-guiding pulley, as such pulley is here unnecessary. The tapes as here shown, and of course adaptable in Fig. 4, are led out of the channel before the casing cover slat is inserted in place. i

In the drawings, the numeral I5 designates generally a 'Venetian blind, whose tilt rail is denoted by the numeral lfi, its bottom rail by I1, and the slats intermediate such rails by l8. Said rails are hollow casings made of sheet metal or other suitable sheet material. Each casing comprises a channel member I9 and its associated slat 2D to form a tubular structure, whose ends may be closed by cap members l6 and H. The cap members I6 at the ends of the tilt rail l5, may each have suitable pintles for mounting in end brackets 2| and 22, at opposite sides of the window frame 23. Tilter means, not shown, may be housed in bracket 2|, and operated by the cords 24. Lock for the cords may be housed within the tilt rail l6, and especially a bracket 25 at each pair of tapes, is mounted within the tilt rail. The cord lock is not shown, and likewise the cord system, which are well known in the art, and need no further explanation. -The slats 18 may be of sheet metal and their stock may be used for the cover slat 20. Their material has some resilience usually, and are trans-. versely archable. In Venetian blind assemblies, two tapes facing each other with the slats l8 between them, and a cord through all the-slats l8, and positioned parallel to the tapes, are at several stations across the Venetian blind l5, as is well known.

The feature of this invention is the manner and means of attachment of the tapes and cords and of the provision of pulley guides or their equivalent atthe regions of tape attachment, and the association of said means with the tilt and bottom rails, allof which I will now describe.

The base-of the channel I9 is preferably outwardly transversely arched slightly, so :that'the sides of the channel may be sprung. The channel sides are so formed that each has a pair of spaced channels along its entire length, preferably along the base of the channel l9 and. along the longitudinal free edge of the walls respectively. The channels and 3| in one of the walls being directly opposite the channels 30' and 3|, respectively in the other of the walls of channel 19; all channels in said walls, opening inwardly in the channel member [9. At each position of a pair of tapes, the base of channel I 9 is provided with a hole 32. At each such position, within the channel I9, is mounted a bracket 25, which may be a stamping out of a single blank of sheet metal.

The base of bracket 25 has a pair of opposite edges. 26 and 26', which are of such distance apart that such edges may be fitted to lie respectively within the respective channels 30 and 30'. From that surface of the base of bracket 25, which is next to the base of channel I9, extends a nipple 33. This nipple sets within hole 32 in channel l9, and locks the bracket 25 in proper position within the channel 29. From the an entrance at 36 between such parts 34 and 35,

so that the hemmed end 3'! of tape 38 may be mounted on such loop parts 34 and 35, one such tape on each pair of such parts 34 and 35.- Such hem is first received about part 34, and then let spread so that part 35 also enters the hem. The tape end is thus anchored.

For better identification, the tapes at the front of the Venetian blind 15, are designated by the numeral 38, While the tapes at the back thereof, are designated by the numeral 38". Also the parts 34 and 35 to receive the rear tape, are indicated as primed.

Attape positions on the tiltrail I6, where there is also a cord for the movement of the bottom rail I1, said bracket 25 which is used at such position, is provided with a cord-guiding means as for instance the pulley 40 to receive such cord which is positioned through the nipple 33. Tabs 4|, bent up from the. blank out of which the bracket is made, serve as supports for the pin shaft 42, carrying the pulley 40.

In the bottom rail, the casing used for the tiltrail I6 is used in inverted position as the bottom rail l'l shown in Fig. 5. Here the cord 39 is anchored by. a knot 43 at its end, after passingthrough nipple 33 of bracket 25'. This bracket 25' is the same as shown in Fig. 3, but has no pulley for none is needed.

Two different ways are shown of the manner in which the tapes enter the rail casing. In Fig. 4, the tapes are shown entering the casing through the slots 44 and 44 respectively. In Fig. 5, said tapes are held gripped between the channel member I 9' and its cover slat Either method of tape entrance into the rail casing is useable for the tilt and bottom rail assemblies.

The parts 34 and 35, and likewise the opposite set of parts 34 and 35, constituting thesplit loops' for attachment of the tapes, are spaced from the walls of the channel 19, to facilitate accessibility for mounting and removing the tapes. If parts 35 and 35 are omitted, then

parts

34 and 34 may serve as hooks to receive the hemmed ends of the tapes, respectively.

This-invention is capable of. numerous forms and various applications without departing from the essential features herein disclosed. It is therefore intended and desired that the embodiment herein described be deemedillustrative and not restrictive and that the patent shall cover all patentable novelty herein set forth; reference being had to the following claim rather than to the specific description herein to indicate the scope of this invention.

1 claim:

A bracket for mounting a pair of opposite tapes of a Venetian blind including a channel rail having a hole through its base wall and opposite channels, one suchchannel along each of its side walls at the base wall, said bracket being of a single piece of sheet metal and comprisinga base having an open-ended'nipple extending from one surface of said base and pre senting at its other surface a pair of spaced parallel hooks bent up from the base; each hook being'adapted to receive a hemmed end of a tape thereon; said bracket being adapted to be slid within the channel rail whereby opposite longitudinal edges of the base of the bracket are respectively positioned in the opposite channels along the walls of the channel member and is locked in position when said nipple enters and becomes removably engaged in the hole in the base wall of the channel member; each of said hooks lying. along one of said edges of the base member and respectively spaced fromthe side wall of the channel member when the bracket is so mounted within the channel member.

RUDY BRUNER.

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

UNITED STATES PATENTS Stuber et a1. Dec. 12, 1950