US2318565A - Window shade attachment - Google Patents

Description

May 4, 1943- F. SNYDER WINDOW SHADE ATTACHMENT Filed Aug. 19, 1941 INVENTOR.

ATTORNEYS.

Patented May 4, 1943 WINDOW SHADE ATTACHMENT Harry F; Snyder, Montpelier, Ind., assignor to Clopay Corporation, Cincinnati, Ohio, a corps ration of-Maryland Application August 19, 1941, Serial No. 407,463

Claims.

This invention relates to window shades and is particularly concerned with the problem of securing such shades to the rollers on which they are conventionally wound. The invention is also concerned with the problem of the construction of reversible window shades; that is, window shades in which both ends of the shade are equally adapted to be secured to the roller so that when the extended margin of the shade has become worn the positioning of the shade may be reversed and the worn end positioned adjacent the roller where it will not be conspicuous. In shades of this type it is necessary that there be provided marginal pockets at either end of the shade for the reception of a stiffening slat no matter how the shade is positioned on the roller.

In the use of the present invention in connection with both conventional window shades and reversible window shades, the primary object has been to provide means for fastening the shade to a roller so that there will be no tearing or marring of the shade at the point of attachment as is the case when tacks, nails or adhesive are used for this purpose.

Another object has been to provide means for. attaching the shade, which means is directly associated with the shade itself and does not constitute a separate element.

Another object has been to provide shade attaching means which are adapted to cooperate with any conventional roller in preventing rela tive movement between the shade and the roller.

Another object has been to provide shade attaching means which are simply and easily formed as an integral part of the shade at very slight additional expense.

Other and further objects and advantages will be apparent from a consideration of a further and more detailed description of the invention when considered in conjunction with the drawing in which:

Figure 1 represents an elevation of a shade embodying the present invention extended from a roller.

Figure 2 is a section along the line 22, Figure 1.

Figure 3 is a similar section showing the shade partially wound on the roller,

The shade indicated generally at I, Figure 1, may be farmed from conventional materials and is suspended from a roller indicated generally at 2. This roller has been inserted in a hem pocket 3 formed by the stitched line 4. A second hem pocket 5 is formed by the stitch line 5 at the extended margin of the shade.

As best illustrated in Figure 2, the hem pockets 3 and 5 have been formed by doubling the shade margin so as to provide a loose end I which forms a secondary loop or pocket inside the main pocket. The purpose of this loop or pocket 8 is to provide means for snubbing or gripping the outer surface of the roller to prevent relative movement between the shade and the roller as the roller is turned. This secondary pocket which is preferably loosely formed from the extended end of the shade operates to frictionally engage with any roughened surface and thereby exerts a snubbing action which permits winding of the shade on the roller. Obviously, there is no tearing or marring of either end of the shade and the loop formed by the extended end is completely inconspicuous from any direction that it may be viewed.

If desired it is possible to secure the loose end I of the extended portion to some other part of the extended portion or to the hem pocket to form a smaller closed pocket interior of the hem pocket. However, it has been found in practice that this is unnecessary and that the preferred form in which the end I is left loose works equally well.

Figure 3 illustrates the manner in which this extended end grips the outer surface of the roller to permit winding of the shade.

The extended marginal hem pocket of the shade such as 5 is adapted to receive a stiffening slat (not shown) and this slat may be inserted equally well in the inner pocket 8 formed by the extended end 1. If desired, the slat can likewise be positioned between the folds of the outer pocket and the inner pocket. The exact length of the extended end 1 is immaterial except that it is preferable that it be sufficiently long to provide at least one complete loop or pocket interior of the main pocket.

In a reversible shade such as that shown in the drawing the roller may first be inserted in the hem pocket at one end of the shade and a stiffening slat may be placed in the hem pocket at the other end. When it is desired toreverse and forming a secondary pocket for the reception of a shade roller,

2. In a window shade a hem pocket formed adjacent an end thereof, the extreme end portion of said shade being coiled interior of the pocket, forming a secondary pocket for the reception of a shade roller.

3. A window shade comprising an extended length of material, a hem formed adjacent one end thereof and snubbing means positioned interior of said hem for preventing relative movement between the shade and its roller; said snubbing means including an extended length of fabric adapted to be coiled around a roller inserted in the hem.

4. A window shade comprising an extended length of fabric; one end of said fabric being folded over and hemmed to form a roller receiving pocket, the marginal end of the fabric being extended within the pocket and being of suficient length to encircle a roller inserted in the pocket and snub the same against relative movement with respect to the shade as the roller is turned.

5. In a window shade having a hem pocket formed at an end thereof for the reception of a shade roller, a snubbing element for preventing relative movement between the inner surfaces of the pocket and the shade roller without puncturing or marring the surfaces of the pocket, said snubbing element being positioned within the pocket.

HARRY F. SNYDER.

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