US2836237A

US2836237A - Venetian blind construction

Info

Publication number: US2836237A
Application number: US562065A
Authority: US
Inventors: Robert A Hogin; Seth S Belcher
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-01-30
Filing date: 1956-01-30
Publication date: 1958-05-27
Anticipated expiration: 1975-05-27

Description

May 27, 1958 VENETIAN BLIND CONSTRUCTION Filed Jan. 30, 1956 R. A. HOGIN HA1. 2,

Robert A. Hog/n Seth 5. Be/cher Fig.2 Fig.3 Fig.4 40 40 40 IN V EN TORS 40% M -May United States Patent Q BLIND CONSTRUCTION Robert A. Hogin, Montgomery, and Seth S. Belcher, Tallahassee, Ala.

Application January 30, 1956, Serial No. 562,065

1 Claim. (Cl. 160-115) The present invention relates to Venetian blinds and particularly to a Venetian blind which is capable of mul tiple adjustments in order that the admission of light and air may be independently controlled depending on the prerogative of the room occupant.

An object of the present invention is to provide a practical Venetian blind which is made in an upper and lower section, there being means for regulating the tilt of the slats of the upper section independently of the adjustment of the lower section slats, so that the admission of light and air through the upper and lower parts of standard windows may be regulated in accordance with the needs and demands of the occupants of room or other enclosure wherein the Venetian blinds are used.

A more specific object of the invention is to provide a Venetian blind which includes an upper and a lower section, each section having its tapes and cross tapes together with slats and means for independently adjusting the tapes in order to thereby adjust the angularity of the slats, the lower section having elongated tapes between which the tapes and slats of the upper section are located whereby a single mechanism for elevating the entire blind may be used for both sections yet leaving control for the tilt of the slats of each section for independent operation.

Another general object of the invention is to provide a very simple Venetian blind which is easily installed and operated, the blind being in the nature of two independent blinds wherein each section may be entirely opened and closed independently of the other sections, but the blind being a single one in that both sections may be adjusted so that the tilt of the slats is the same throughout and moreover a single lifting device, for example, a rope, is used for elevating both sections simultaneously.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a fragmentary elevational view of a typical blind which embodies the principles of the invention;

Figure 2 is a vertical sectional view of the blind in Figure 1;

Figure 3 is a vertical sectional view of the blind in Figure l, the upper section having its slats at one angularity'while the lower slats are at a difierent angularity; and

Figure 4 is a vertical sectional view of the blind in Figure l with the adjustment of the slats being altered from that shown in Figures 2 or 3.

In the accompanying drawing there is illustrated a Venetian blind which is made of an upper section 12 and a lower section 14. The upper section has standard slats 16 in it while the lower section has identical slats 17 therein.

The head box 20 is only partially shown, the portion 2,836,237 Patented May 27, 1958 2 that is illustrated consisting of an upwardly opening channel 22 having upstanding brackets 24 at each end and accommodating the tilt bar or roller 26. This roller has trunnions extending from the opposite ends thereof, these trunnions being mounted for rotation in the brackets 24. A standard device for tilting the tilt box 26 for the lower section 14 is operatively connected to the tilt bar. Such a standard device is schematically shown at 30 in Figure 1 and comprises a groove wheel having a cord 32 entrained around it, this groove wheel being connected to drive a gear train which in turn rotates the tilt bar 26 about its aligned trunnions as an axis.

There are two or more tapes 34, the number being determined by the width of the Venetian blind. The illustrated tape 34 has a number of cross tapes 36 connected to it on which the slats 17 are disposed. The upper ends of tape 34 are fastened as by being stapled, screwed or nailed in the V-notch 40 in the tilt bar 26. The lower ends of the tape 34 are suitably fastened to the lower tilt bar 44 of section 14.

Means for elevating the Venetian blind are attached to it and consist of a rope 48 that has its ends pass through vertically aligned openings in all of the

slats

16 and 17. The extremities of rope 48 are attached to the lower tilt bar 44 of the Venetian blind, while the loop formed by an intermediate part of the rope 48 (unshown) is utilized for pulling the Venetian blind in such manner as to elevate it. The Venetian blind described to this point operates in a manner very similar to the Ordinary blind now commercially available. The distinction so far is that the cross tapes 36 on tapes 34 are located only at the bottom of tapes 34, there being in the illustrated embodiment six slats. It is obvious that a larger or smaller number of slats may be used in the lower section 14, the point being that from the lower section upper end to the header box 20 tapes 34 have no cross tapes. This is for the accommodation of the upper section 12 of the Venetian blind.

The upper section 12 of the Venetian blind 10 consists of an upper tilt bar 50 from whose ends trunnions protrude. These trunnions are mounted for rotation in a pair of brackets 52 (one of which is shown in Figure 1), the latter being suspended from the header box 26. A standard device 54 constitutes the means for tilting the tilt bar 50, the device 54 being identical to the device 30 and having a tilt cord 56 connected with it. Two or more tapes 58 are attached at their upper ends to the tilt bar 50. They are attached at their lower ends to the lower tilt bar 60 of the upper section 12. Accordingly, upon actuation of the tilt mechanism 54 the slats 16 disposed on the cross tapes 64 of tapes 58, are correspondingly tilted. This provides for independent control of the angle of slats 16 with respect to the angularity of slats 17. Light and/ or air admission or discharge from a room may be regulated by selected adjustment of the angles of the

slats

16 and 17.

Since numerous modifications and changes will readily occur to those skilled in this art, it is not desired to limit the invention to the exact construction shown and described. Accordingly, all suitable modifications and equivalents, for example, various selections of materials of construction, color and appearance may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

A Venetian blind comprising a header box, an upper tilt bar mounted for rotation in said box, means connected to said tilt bar for adjusting said tilt bar, a pair of tape ladders, each ladder comprising a front and a rear tape secured to said tilt bar, cross tapes secured to and extending between the front and rear tapes and at only the lower part of said front and rear tapes, apertured slats of the Venetial blind which is adjustable in response to V V actuation of said tilt bar the upper section of the Venetian blind comprising a second pair of tape ladders, each tape ladder of said second pair comprising a front and rear tape between whic h there are'cross tapes, apertnred slats on the last mentioned cross tapes, a second tilt bar for said second section, the upper ends of both of the tapes of each of said second pairs of ladder tapes being secured to'said second tilt bar, means independent of the blind rom t e w r end of pwar y, enema tilt bar located beneath sajd header box and shorter than said header box and the slats which it supports, said actuating means for said second tilt bar located .at one' end of said second tilt bar, and said actuating means for said first tilt bar disposed near one end of said first mentioned tilt bar and on the same side of the Venetian t blind as said actuating means for said second tilt bar.

' References Cited in the file of this patent UNITED STATES PATENTS 2,706,522 7 White Apr. 19, 1955 2,757,726 7 Rice et al. Aug. 7, 19576 Collier 2- Mar. 4, 1952