US1782977A - Metallic shade roller - Google Patents

Description

Nov. 25, 1930. w. o. N. SODERQVIST METALLIC SHADE ROLLER Filed Oct. 29, 1929 Patented Nov. 25, 1930 UNI-TE? i 7WILLIAM osfieitniconans siinnnovispri orirnxoriiqe; 1 7

*7 SHADE semen A pim tiqnjmea cqc ob r 29,1959, Serial 170,403,231; and in- Swedeii October 3,1929;

*Thisinvention relates to shade rollers and more especially to such rollers made of metal. One objectsof this invention isto provide shade rollers-of metal which are easy to'manwufacturen 7, 7

1 Another obj e ct of my invention are metallic shaderolle'rs which are-rather light so 1 that they do notn'eed but rather simple suspension means. 1-; w A further object of this invention is a metallic shade roller that maybe manufacetured in standard lengths and easily extended or restricted i inmits'standard length when procured to suit a certain window casing or 15*oth'e'r place forutilization. 7

"Still a further object of the invention is 7 the provision of ready means for attaching the shade to the metallic roller so that such an operationcan be carried out by anybody without preparatory experience. 5

3 ments of my invention are illustrated where- 1 Fig. 1 shows the new shade roller in its simplest embodiment applied to awindow caslB igJQ shows the same parts but the roller 1 of an extensibleembodiment,,

Fig, 3 shows on an enlarged scale end portion of an extensible roller illustratingin detail the mechanismfor its extension,

Fi 4: is across section on the broken line I A 7CD in, Fig. 3' {looking in the direction of the arrows, 7

Fig; 5is a cross sectionon the line EF in Fig. 3 looking in1 the direction of thearrows, 7 Fig.6 isa'planviewof a stiffening bracket before its mounting, 7 7' 7 7 Figi7 is across section online' G -H'in roller showingthe attachment of the shade 7 llQr 7 9 71, l i

as said attachmeiit.

7 GF ig. 9, is a: view clamping member:

FiguresiS and 9 are one still more enlarged I scale than the other figures. All figuresexcept Figs'fi and 9 show'the parts wholly or partially in section. 7 t .w 77

, In the drawing similar parts are designated with the same figures or reference.7 7

The shade roller 1 is built up like askeleton of longitudinal strips or hands 2 of ironor steel orsome other suitable metal,stifiened by suitably spaced brackets 3 of sheetmetal.

,The body of the brackets 3 has a substantially'circular form with a central boring 4 to reduce the weight and to allow the throughgoing of a rod orothen members which can be wanted for some needs which do not belongto this invention andtherefore'are not shown nor describedhere in order not to complicate the drawing and-description. Said members for instance can be such spiral springswhich are generally knownas motors for automati- 1 A :In thefaccompanying drawing two embodically operated window shades. Thebands 2, which preferably are hardened and annealed to a'springing ability in order to afford a better firmness of the roller; are spaced round. the circular brackets 3 asclearlyshown in Figs k and 5 so that the outer appearance of the complete roller equalsa cyliny drical member such asarethensual window the oneshade rollers of wood or metal tubes; The two ends. of the roller are closed by Covers or brackets 5 0f substantially the same appearance as the brackets 3 but withoutboring 4 andinstead provided each with a projecting pin 6 as journals for the rotary suspension of the roller inbrackets? on the window casing 8 or generally: speaking on the place where the shade is tobe'utilized, These pins 7 6 can be substituted by; a rod whi ch passes through the entireroller through the borings 4 in the brackets 3 and constitutes the jour- $5 nals at both ends of the roller which rod may be fixed to thee'ndbrackets 5 in any convenient way'so that the rod will revolvein- )t'egmtwith theroller, 77

' Assuch a'rod and its attachmentto the roller can be effected in a plurality of manners which all are easily understood by anybody, and as these means do not make part of the invention they are not shown in the drawing. Likewise I have not illustrated any means for operating the roller as such means can be of different classes, all of some known design. For instance the roller can be provided at one end with a sheave and a core for the old fashioned method of operating a rolling shade by pulling the core, .or it can be provided with a spiral spring motor for the automatic revolving of the roller. In the last mentioned case the bracket 5 at the spring provided end ofthe roller must be substituted by some revolving member. Such devices, however, are well known in automatically operated shades and do not belong to this invention and they do not want to be illustrated here.

The attachment between the strips 2 and the brackets 3 and 5 is carried out in the following way. Each bracket 3 is provided with so many tongues or lugs 9 as is the number of longitudinal strips 2 which lugs project radially as shown in Figs. 6 and 7 when the bracket 3 not yet has been mounted in the roller skeleton. In the shown example there are three such strips 2, and consequently the lugs 9 are three in number on each bracket. Each strip 2 on the spot where a bracket 3 is to be applied is provided with a substantially rectangular hole 10 of the same length as the width of a lug 9, and the same width as the thickness of said lug. Said holes 10 are produced in the strips 2 by pressing down a portion 11 of the strip, by which down pressing the hole 10 appears in the one wall of said recess. Between each two lugs 9 each bracket 3 has a flange 12 directed at right angle to the surface of the bracket as shown in Fig. 7.

When assembling the skeleton the lugs 9 of the brackets 3 are inserted each through a hole 10 in the strips 2 and bent down in the length direction of the strips 2 whereby the lugs fill up their respective recesses 11 so that the outer surface of the strips 2 comes in flush with the outer surface of the down bent lugs 9 as can be clearly seen in Fig. 3. Hereby the flanges 12 register with the interspaces between two adjacent strips 2 as shown in Figs. .4 and 5, and as a result the whole circumference of the assembled roller will be a substantially continuous circular line. The brackets 5- are provided with a collar 13 projecting at right angle from the surface of the bracket, so that when assembled the outer surface of collar 13 lies in flush with the outer surface of the strips 2 which are bent down at their ends as shown by 14 in Figs. 1, 2 and 3, and passed through substantially rectangular holes in the brackets5 close inside the collar 13. On the outer surface of brackets 5 the throughgoing ends 15 of the strips 2 are bent down as shown in Fig. 3.

Figs. 2 and 3 show how the roller can be adjusted as to the length by means of an end piece 17 built up substantially of similar scantlings as the body portion of the roller, viz. of strips 2 and an end bracket 5 whereby the body portion of the roller at this end can be left without such an end bracket as shown in Fig. 3. The extensible strips 2 are provided on both .sides with lugs 18 which are bent down so as to embrace the adjacent strips 2 as shown in Fig. 5, and thereby assembling the extensible portion 17 with the body portion. The strips 2 of the body portion are recessed Within the range of the entensible portion 17 as shown by 19 in Figs. 2 and 3 so that the extensible strips 2 come in flush with the body strips 2 as it concerns their outer surface. When the extensible portion 17 has been slided along the body portion, guided by the clamping lugs 18, until the total lengthof the roller suits the window casing8 .where the shade is to be suspended, the lugs :18 are compressed around the body strips '2, and thus the roller made rigid as an integral piece of a certain length.

If a roller specimen is to be removed from its present place, and to be used at "another place with some other width, the rollerrcan be further extended or reduced as the case may be by slight hammering knocks on the respective ends of the extensible strips 2 whereby these will slide along the body strips 2 until the wanted new total lengthis reached.

The shade 20 can be readily applied to the roller 1 by means of clamps 21, shown in Figs. 8 and 9 which clamps comprise narrow metal strips with double bent ends'22 with sharpened points. These clamps are 'laid above the upper portion of the shade 20 which has been applied to one of the strips 2 (and the corresponding extensible strips 2 in the case of the extensible embodiment) whereupon the ends 22 are bent over as shown in Fig. 8, whereby the sharp point at the down end of the clamp 21 penetrates the shade. By compressing the double bent ends 22 the clamps are fixed to the strips 2 (2) and thus the shade stationarily attached.

Having thus described my invention what I claim is:

1. A shade roller'c'omprising a plurality of circularly alined strips, "said strips having formed therein apertures and adjacent recesses, said recesses being'below the plane of the strips, circular brackets confined by the strips and having peripheral projecting lugs passable through said aperturesand bendable into said recesses, brackets upon the ends of the roller, and means carried by the latter brackets for rotata 'liily "supporting the roller.

2..A shade roller consisting of a plurality of circularly alined metal strips, circular brackets confined by the strips, said strips having apertures therein, recesses adjacent said apertures, said brackets having peripheral lugs passable through the apertures and bendable into the recesses, axially extending flanges carried by the brackets, said flanges having their side edges intimately engaged with the sides of the strips between which they engage, said flanges being of a length less than the strips, brackets upon the ends of the roller, and means carried thereby for rotating the supporting roller.

In testimony whereof I have aflixed my signature.

WILLIAM OSKAR mcouws sonrnovls'r.

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