US2341440A - Shade - Google Patents

Description

' N. HAMMER Feb. 8, 1944.

SHADE Filed Nov. 19, 41942 MAGNET/c Il Mgg/m Y@ ATTE RN EYS Patented Feb. 8, 1944 UNITED STATES PATENT OFFICE SHADE Nathan Hammer, New York, N. Y.

Application November 19, 1942, Serial No. 466,160

3 Claims. (Cl. 160-298) My invention relates to windows, and has among its objects and advantages the provision of an improved shade wherein novel means are provided for supporting the shade in different positions without the aid of springs, ratchet devices and the like.

In the accompanying drawing:

Figure l is a fragmentary face view of a shade in accordance with my invention.

` Figure 2 is an enlarged sectional View along the line 2--2 of Figure 1.

Figure 3 is a sectional view along the line 3-3 of Figure 2.

Figure 4 is a perspective View of a roller cap, and

Figure 5 is a perspective View of a modified bracket.

In the embodiment of the invention selected for illustration, I make use of a wooden roller I0 comprising sections I2I and I4 between which the end margin I6 of a shade I8 is clamped, as through the medium of staples 28 driven through the thinner section I4 and into the section I2. Each end of the roller I8 is provided with a cap 22 driven thereon and slotted at 24 to accommodate the shade I8 so that the latter may have a width corresponding to the length of the roller I8.

Figure 1 illustrates brackets 26 mounted on the window frame 28 for supporting the roller IU. Pins 30 and 32 are driven into the endsrof the roller I8 and are rotatably journaled in the brackets 26 to rotatably mount the roller.

Figure 3 illustrates a reel 34 mounted on the pin 32 and keyed at 36 to the roller I0. This reel comprises a permanent magnet and is located between the cap 22 and a cord guide bracket 38 flxedly secured to the adjacent bracket 26. A flange 40 is provided on the pin 32', which ange lies Within a correspondingly shaped opening in the bracket 38.

Upon the reel 34 is wound a cord 42, which cord is reversely wound with respect to the shade I8 wound about the roller I0. The upper end of the cord 42 is fixed to the reel 34, as by passing one end through an opening 44 in the reel. The cord hangs downwardly from the reel and passes through a large opening 46 in a fiange or cord guide 48 on the bracket 38. Thelower end of the cord 42 is attached at 58 to the lower end of the shade I8.

In operation, lowering of the shade I8 winds the cord 42 on the reel 34 while raising of the shade unwinds cord from the reel. Thus the cord 42 hangin-g from the reel is always easily accessible. The shade I8 is wound on the roller I0 by exerting a downward pull on the cord 42. The shade may be lowered by grasping the shade in the usual manner.

Because of the permanent magnet characteristic of the reel 34, the latter has frictional engagement with the bracket 38 so as t0 restrain the roller II) from accidental rotation, as by the weight of the shade. Thus the shade I8 is held firmly in all positions, and the reel 34 functions as a latch which frictionally supports the roller against accidental rotation and at the same time permits the shade to be raised or lowered with little effort. The reel is of relatively simple construction and eliminates the necessity of more complicated spring actions and the like. The lowered shade remains securely in that position and does not accidentally wind up, as is true of spring actions. Thus my construction provides a good black-out shade, in addition to performing ordinary shade functions.

Figure 5 illustrates a bracket 52 which is of a one piece construction. rl'his bracket is bent from sheet metal and includes a flange 54 adapted for connection with the frame 28, in addition to a ange 56 which lies in the position of the flange 38. A third flange 58 is provided with a slot 60 for cord guiding purposes.

Without further elaboration, the foregoing will so fully explain myinvention, that other may, by applying current knowledge, readily adapt the same for use under various conditions of service.

I claim:

1. In a window shade, the combination of a rotatably mounted roller, a relatively fixed body subject to magnetic inuence, and a permanent magnet Xed to said roller and attracted against said body to yieldingly restrain the roller from accidental rotation.

2. In a window shade, the combination of a roller, a relatively fixed bracket rotatably supporting an end of the roller, and a permanent magnet attached to the roller and engaging said bracket to magnetically restrain the roller from accidental rotation.

3. In a window shade having a rotatable roller, a bracket for supporting an end of the roller, a line guide carried by the bracket, said guide being of magnetically sensitive material, and a magnet reel attached to an end of the roller in co-acting relation with the base of the guide to yieldingly restrain rotation of the roller.

NATI-IAN HAMNIER.

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