US2782848A

US2782848A - Venetian blind

Info

Publication number: US2782848A
Application number: US377123A
Authority: US
Inventors: Cereceda Ramiro
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-08-28
Filing date: 1953-08-28
Publication date: 1957-02-26
Anticipated expiration: 1974-02-26

Description

Filed Aug. 28, 1953 2 Sheets-Sheet l INVENTOR.

/Fam/'ro Cere ceczcz R. CERECEDA VENETIAN BLIND Feb. 26, 1957 2 Sheets-Sheet 2 Filed Aug. 28, 1953 INVEN'TOR. Ram /ro Cere ce da BY. l

A TTY,

2,782,848 Patented Feb. 26, 1957 VENETIAN BLIND Ramiro Cereceda, Los Angeles, Calif.

Application August 28, 1953, Serial No. 377,123

' 1 Claim. (ci.` 16o- 172) y This invention is directed to improvements in window blinds of the typerthat are hung on the inner side of a window and it relates particularly to improvements in Venetian-type blinds.

A principal object of the present invention is to provide an improved vertical Venetian blind wherein a novel, simplified, webbing control mechanism is provided which employs a great deal less number of parts than are required in other vertical Venetian blinds, as a result of which cost of producing the present blind structure is materially less than in other types.

Another object of the invention is to provide an improved vertical Venetian blind structure wherein a novel means is provided for suspending the blind slats and for shifting the same to opened and closed position.

Other objects and advantages of the invention will become apparent as the description of the same proceeds and the invention will be best understood from `a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of the specification, with the understanding, however, that the invention is not to be limited to the exact details of construction shown and described since obvious modications will occur to a person skilled in the art.

In the drawings:

Figure 1 is a detailed, sectional view through one side of a Venetian blind header, showing the improved mechanism of the present invention for supporting and operating the vertically suspended slats.

Figure 2 is a horizontal section taken substantially on a line 2 2 of Figure 1.

Figure 3 is a vertical section taken substantially on line 3-3 of Figure l. Y Y

Figure 4 is a vertical section taken substantially on line 4 4 of Figure l.

Figure 5 is a detailed section taken substantially on lline 5-5 of Figure l.

Figure 6 is a detailed section taken substantially on line 6-6 of Figure 5..

Figure 7 is a detailed section taken substantially on line 7-7 of Figure 1.

Figure 8 is a View in side elevation of the supporting bracket for the vertical and horizontal shafts which control the shifting of the slat turning webbing.

Figure 9 is a view of the bracket of Figure 8 looking at the same from the outer side.

Referring now more particularly to the drawing the numeral 10 generally designates the header board which is horizontally disposed across the top part of a window opening, not shown, and from the underside of which board, the parts supporting the Venetian blind are suspended.

The numeral 12 designates one end panel forming a part of the header structure.

It will be understood, of course, that in association with the header 10 and panel 12, there would be employed an opposite end panel and a front valance board, which are not shown as an illustration of the same is not necessary to a description and understanding of the present invention.

In accordance with the present invention, there is provided an elongate track which is generally designated 14 and which is in the form of a channel bar which is secured to the underside of the header 10. This channel bar comprises the at back portion 16, which is secured to the underside of the header bar by screws 18, and the longitudinal anges 20 which extend along sides of the back portion 16 and hang down from the header 10 as shown in Figure 4.

Formed integral with the freeedges of the ilanges 20 and extending lengthwise thereof, are the inwardly projecting tracks 22 the function of which will be hereinafter set forth.

At the right hand end of the track structure there is secured to the underside of the header ltl a pulley bracket which'is generally designated 24 and which comprises the top plate 26 which is secured to the underside of the header by screws 2S, and the depending side wings 30.

Extending transversely of this bracket 24 is a pulley shaft 31 which has its ends rotatably mounted in and supported by the wings 30 and on the shaft is supported the pulley 32having therein the two cord grooves 33.

Disposed within the channel track structure and extending across and resting upon the tracks 22 are a number of slide plates 34, each of which has suspended therefrom la hook 35 which engages in an aperture 36 formed through the upper end of a blind slat 37, upon the longitudinal center of the latter.

As will be readily seen, the slats 37 will be moved together to uncover the window opening, not shown, when the slide plates 34 are shifted to one end of the track structure, as, for example, .when they are all shifted to the right end of the structure as viewed in Figure l,

For effecting the shifting of the slat carrying slide plates there is provided a control cord 38 which has one half 38a passing over the pulley 32 and lying in one groove thereof. This half or side 38a of the pull cord extends the length of the track 16 over the tops of the slide plates to anV outer pulley 32a. The cord 38 passes around the outer pulley 32a and then extends back in the second half 38b parallel with the half 38a and passes down over the pulley 32 in a groove thereof as shown in Figures 2 and 4. The cord half 38!) is secured as at 39 to the slide plate 34 nearest to the left or outer end of the track, as shown in Figures l an-d 2, so that when the side 38h is pulled, the slide plate at the outer end of the group will be drawn across, carrying the other plates with it to close the blind and when the cord side 38a is pulled the slats will be moved apart.

Secured to the underside of the header 10 adjacent t0 the bracket 24 is a shaft supporting bracket which is generally designated 40 and which comprises -a top plate 41 which is secured to the header by screws 42, the depending back wall 43 and the horizontally extending platform 44 which is joined to the bottom edge of the wall 43.

In order to stilen or make the shaft supporting bracket 40 more rigid, the top 41 and back wall 43 are connected by the triangular corner plates or gussets 45.

The platform 44 has formed integrally therewith the depending panel 46 in which are formed the two slots 47 as shown in Figure 8 and the top edge of this panel has a semicircular recess 4S therein which is in line with corresponding upwardly and downwardly struck semicircular guide loops 49 which are formed from the platform material and are aligned transversely thereof. These guide loops form bearings for a worm shaft 50 which is disposed across the width of the platform and between 3 the innermost guides 49 the platform is provided with an opening 51 which provides a clearance for a worm 52 which is carried on the shaft 50 as illustrated most clearly in Figures 2 and 3.

The forward end of the shaft 50 has secured thereon a control cord pulley 53 about which is engaged the hanging cord 54 by means of which hereinafter described webs are moved.

The face of the hanging panel has secured thereto a pair of cord guides 55, each cf which has a vertically disposed mounting portion 56 which is provided with a lug 57 which is engaged in a slot 47 and has its back end swaged as shown in Figure 3 to secure it in position so as to maintain the guide 55 vertically disposed. The gui-des 55 are relatively closely spaced as shown i'n Figure 1 so that the control cord 54 must be brought around and under the pulley before it passes through the guides and thereby insuring that the cord will not jump off of the pulley when it is in use.

The outer or right hand edge of the platform 44 has an extension 58 which is provided with an aperture 59 for the reception of a vertical or hanging shaft 60. The upper end of the shaft above the extension 58 has secured thereto the gear segment 61 which is in toothed connection with the worm 52 as shown in Figure 2.

The lower end of the han-ging shaft 60 is rotatably conlined in the vertical sleeve bearing 62 which is formed integral with an outwardly extending tongue 63 which is secured at its outer end, as at 64, to the inner face of the end panel 12.

Disposed transversely of the hanging shaft 60 is an oblong plate 65 which is secured midway of its ends to the shaft and which has at its outer ends the transverse slots 66. The plate 65 is of a length slightly greater than the width of the slats 37 so that the slots 66 lie outside the planes of the longitudinal edges of the slats when the latter are in open position or, in other words, have the wide faces parallel with the shaft 50.

Extending through each of the slots 66 is an end portion 67 of a blind slat controlling tape or web 68, the end portion 67 being turned back and secured by staples 69 or in any other suitable manner, to the body of the tape. The tapes 68 extend across the width of the blind structure and across the longitudinal edges of the slats 57 and extending across between the long tapes 68 are the short transverse tapes 70 each of which extends across and lies against a face of a blind slat 37 as shown most clearly in Figures and 6. y

The outer ends of the tapes are secured to the last or outer slat 37, in a suitable manner, as shown.

Each of the blind slats 37 has struck therefrom, a tongue 71 which is located in a position where when it is turned upwardly as shown in Figure 5, it will extend across the adjacent cross-tape 70 and secure the latter to the slat. l

ln the operation of the present Venetian blind structure it will be seen that by manipulating the

cords

38 and 39 the slats 37 of the blind can be pulled together or separated as desired and when it may be desired to turn the slats so as to partially close the blind, this is accomplished by pulling one side of the cord 54 to effect the rotation of the worm shaft 50 and through this and the worm 52 bring about the turning of the gear segment 61 and shaft 60.

This will then turn the plate to slacken one of the tapes 68 and pull on the other. Consequently the attached ends of the short cross tapes 70 will move in opposite directions and eifect the rotation of the slats 37, it being understood, 'of course, that the shanks of the hooks 35 which are attached to the slide plates 34, can rotate with respect to the plates 34 to permit the desired turning of the slats 37 on their long or longitudinal axes.

It will also be readily apparent from the foregoing that there is provided a mechanism which is of relatively simple construction and comprises very few working parts. Thus it will be apparent thatthe structure can be economically assembled and marketedV and alsoA because of the small number of parts and simplicity of the construction, the possibility of having to make frequent repairs or replacements is reduced to a minimum.

I claim: l y

In Venetian blind construction, a header board having an end panel, an elongated channel member secured to said header board, the legs of said channel member being provided with opposed, spaced apart flanges, loose plates transversely bridging the flanges of the channel member for slide movement thereon, revoluble hooks centrally depending from said loose plates, elongate blind slats vertically depending from said hooks, a pair of spaced apart, parallel tapes adjacent the suspended ends of said slats arid disposed horizontally across the edges of the slats and having'the slats therebetween, said tapes provided with transverse, spaced apart interconnecting tapes, securing means between the interconnecting tapes and the slats, a vertical shaft, means secured to the header board end panel for supporting the shaft for turning movement, a cross plate of greater length than the width of the slats intermediately secured to said shaft, each parallel tape of the rst named tapes being attached to an end of said plate, means for turning the shaft to move lthe first tapes an-d to rotate the said slats land hooks relative to the loose plates, and further means for causing translational movement of the loose plates on the said flanges to separate or cause approach of the slats.

References Cited in the file of this patent UNITED STATES PATENTS 2,158,454 Zubiria May 16, 1939 2,311,716 Walker Feb. 23, 1943 2,388,000 Larson Oct. 30, 1945 2,587,859 King Mar. 4, 1952 2,597,578 Gantner May 20, 1952 2,604,159 Wright July 22, 1952 FOREIGN PATENTS 735,886 Germany May 31, 1943