US1786054A - Roller-screen structure - Google Patents

Description

Dec. 23, 1930. vH jgnxsgN 1,786,054

ROLLER SCREEN STRUCTURE Filed Feb. 19, 1927 Patented Dec. 23, 1930 e rarer orties HARRYy DIXSO, OFPELLA, IOWA, ASSIGNR T0 ROLSClR-EEN COMPANY, 0F PELLA,

i Y IOWA ROLLER-SCREEN STRUCTURE Application. filed `February 19, 1927. Serial No. 169,554.

My invention has to do ina general way with the provision of certain improvements for screens for windows and the likeand particulark with screens of the t 3e which ma he roller up when not in use and unrolled to cover the window opening when desired.

It is my particular purpose to provide in such a screen structure, a case for the rolledup screen and guide tracks for ieceiving the side edges ofthe screen when the screen lis unrolled and withdrawn from the case, the guide tracks being adapted to permit the withdrawal of the screen edges without injury to the screen or tracks or case.

Particularly, it is my purpose to provide in this connection7 track and case structures which will permit the screen to move back into its normal place after having been withdrawn from the guide tracks without the necessity for disassembling the parts.`

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parte of my roller screen structure, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompany- Y ing drawings, in which:

Figure 1 1s a perspective view of a portion of a roller screen structure embodying my in- Figure 5 is a side elevation of one of the' tracks of a slightly modified form of cony struction; and

Figure 6 is a det-ail, sectional view taken on the line 6 6 of Figure 1.

In the accompanying drawings, I have used the reference numeral 10 to indicate general ly the screen case which is adapted to sup port and contain the shaft 12 upon which is V,ard construction is employed, whereby the roller is yieldinglymounted to rotate for rollthe screen upon the roller when the screen vis withdrawn from the case.

The case 10 has a portion of its bottom near itsfront end cutaway to leave a slot 18 for the passage of the screen 16.

The front wall of the case is preferably vcut away at its lower edge as indicated at 2O for theA purpose which will be liernaftermore fully explained. Y

When installed for windows7 the case l0 is.

mounted preferably at the top of the window and set into the windowy frame.

At the sides of the window frame below the case are opposite guides A. Each guide preferably is formed with the hat iange member the tubular portion 24 for-receiving the edge of the screen.

The tubular portion 24 is resilient and has theV longitudinal slot 26 between the narrow flanges 28.

The Ila-nge 22 may be double and isextendedr above the tubular portion 24 of each guide track and projected into the case 10 as iiidi cated at 30 in Figure-4.

The screen 16 has a stiff binder 32 at its either to pull the edges of the screen from the Y guidel tracks orV to injure the tracks or to tear the screen.

VTo avoid injuryto the tracks, screen. or

case, the tracks are made of resilient mate-V rial, so that when the screen is withdrawn from the case and 1s. subgected to'any blow 0f the kind under consideration, the side edges having the thickened lugs or the like 34 ma be pulled out of the guides through the slots Q6.

There then arises the problem of how to get the edges back into the tracks or to cause the screen to roll into the case and upon the roller without bucklin For accomplishing this returning of the screen to normal position, I have provided in he tracks the notches 3G, such tor'instance as are indicated in Figures l and 2.

In those ligures, I have shovn a portion et the screen below the notches pushed out ot the guide tracks.

lVhen this is done, and the screen is pushed upwardly for rolling it into the ease, the side edges et the s reen v7ill slide over the lower edges ot the notches d then enter the guide tracks, as illustrated in Figures l and 2.

The notches 36 are preferably cut in both sides or halves oil the guide tracks.

In that case, il the side edges of the screen are pushed out of the traelits, either inwardly or outwardly, the screen will readily travel back into piace, as it rolled up.

I find, however, that the result can be aC- complished by cutting a notch 36a in one member only of the guide track, as illustrated in Figure lVhere that structure is used, it the screen is punched out in the direction indicated by the arrow 38 in Figure 5, then when the screen is moved toward the case, its side edges will move back into the guide tracks in the way already explained.

It, on the other hand, the screen has been pusned out in the direction indicated by the arrow i0 in Figure 5, it will then be necessary to push that part of the screen which has been withdrawn from the tracks to the lett, and thereupon the movement of the screen toward the case will cause its side edges to move bael: into the guide tracks.

Sometimes, however, the screen is pulled out of the tracks above the notches 36 or 36a, as the ease may be.

For making it certain that the screen will not buckle upon being rolled up in such a case, I have eut away the lower front portion of the front wall of the case l() as indicated at 20 (see Figure 4).

When this is done and ,assuming` that thev screen does not return to position through the' slots 36 or 36a, it will be seen that the edges of the screen, which have been pulled out of the guide tracks will travel upwardly as the screen is rolled upV over the upper edge of the tubular portion 24 oit the screen and then slide through the openino` 20 to normal'position.

It is my intention to show in the drawings liled herewith certain forms in which my invention may be embodied, but it is not my purpose to limit myself by the drawings to anything less than the real invention disclosed.

I claim as my invention:

1. In a structure of the class described, a guide track having an attaching flange, a tubular portion provided with a slot opening away from the flange, said guide track being provided at a point spaced trom its ends with a notch extending from the slot substantially into the tubular portion and having its upper side edge arranged at an angle to horizontal.

2. In a structure of the class described, a guide track having an attaching tlange, a tubular portion provided with a slot opening away from the flange, said guide track being provided at a point spaced lrom its ends with a notch extending from the slot substantially into the tubular portion, the upper edge of the notch being inclined upwardly from the tubular portion towards the slot, whereby the side edge of a flexible screen having a tendency to normally straighten itself transversely and adapted to normally travel in said tubular portion may be rethreaded into said portion in the event ot its withdrawal theretrom by being accidentally bowed transversely.

Des Moines, Iowa, January 3l, 1927.

HARRY DIXSON.

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