US1403340A - Shade-roller stop - Google Patents

Description

W. C. MOORS.

SHADE ROLLER STOP.

AvPucATloN man 1150.4. 1920.

15,4@3934Q0 Patented. Jan. W, 1922,

@intrisa liti a suene-ROLLER sro?.

Application filed December 4, 1920.

To @ZZ whom t may concern.

Be it known that I, femme C. Moons, a citizen of the United States, residing at Owensboro, in the county of Daviess and State or" Kentucky, have invented certain new and useful Improvements in Shade` Roller Stops, of which the following is a specilication, reference being had therein to the accompanying drawing.

The present invention relates to a shade roller stop or lock, and is particularly an improvement over the devices shown in my Patents llos. 1,242,362 and 1,329,092, granted Oct. 9, 1917, and J an. 27, 1920, respectively.

It is the object of the present invention to improve the construction and assemblage of the component elements, whereby the device can be more cheaply constructed and the parts readily assembled and applied to a shade roller, so that the device will operate to stop or lock the roller should it rotate at an excessive speed, and thereby avoid the cflying up and injury to the shade.

A further object is the provision of such a device comprising cap or terrule to lit over the end of a shade roller, and a disk fitted within said cap or ierrule and carrying the dog` and its spring, and means -for attaching said disk and cap together, whereby to provide a compact and e'liicient construction, said cap and disk being readily stamped from sheet metal.

llVith the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts hereinafter described and claimed, it being understood that changes can be made within the scope oiE what is claimed without departw i ng from the spirit of the invention.

rlhe invention is illustrated in the accompanying drawing, wherein Figure 1 is a front view oit the improved shade roller stop or lock, portions beingl broken away and shown in section.

Fig. 2 is a cross section on the line 2 2 ot `Fig. 3.

Fig. is a longitudinal horizontal section on the line 3 3 of Fig. 1.

Fig. 4c is a perspective view of the cap or ferrule.

Fig. 5 is a perspective view of a .modiiied form of bracket having a stop for the roller.

ln the drawing, there is illustrated a portion of a shade roller 1 on which the shade 2 wound, said roller being provided at one Specification of Letters Eatent.

Patented dan. 19, 1922. Serial No. 428,345.

end (not shown) which the usual pawl and ratchet device which releases by centrifugal action to permit the shade to be wound up as usual. The end oit' the roller shown has a pivot pin or spindle 3 mounted for rotation in the bracket 4; as usual, and this end of the roller is provided with the improved device.

rThe bracket 4: is provided with a lug or stop finger 5 extending at right angles therefrom parallel with and at one side of the axis of the roller 1, for the engagement oil the dog 6 which is pivotally connected to or mounted at the end of the roller l. This dog 6, as shown, is disposed loosely between a disk I and the disk or head 8 of a cap or ferrule, and said dog is pivotally mounted on a pin or rivet 9 secured to and carried by the disk 7. The rim 10 of the cap or ferrule is adapted to slip and fit over the end of the roller, in applying the device to the roller. and the disks 7 and 8 have apertures 11 through which the pin or spindle 3 extends. lThe device is readily applied by slipping it on the end of the roller over the spindle 3, and by substituting the ordinary bracket by the bracket l having the lug 5.

The outer edge of the dog 6 is curved, as at 12, and a doubled wire spring 15 is disposed between the disks 7 and S, and its bend embraces a headed lug or rivet 111 secured to and carried by the disk 7 diametrically opposite to the pin or rivet 9. The spring 13 entends partially around the spin die 3, with one terminal bearing against the outer curved edge 12 of the dog 6, and the other terminal of the spring bearing outwardly against the marginal flange 2O of the disk 7. rllhe dog is provided at its free end with an abutment 16, and with an inwardly extending portion 17 to contact with the spindle 3, for limiting the inward movement oit the dog. rThe spring 13 extends in the same general direction as the dog, and has its free terminal overlapping the dog, so that the iree end of the dog is unobstructed and capable of moving outwardly from between the disks.

The device is secured to the end of the shade by means of a screw 19 or other securing element extending through apertures in the disks 8 and 7 and taking into the roller, whereby to hold the device in place.

The marginal flange 2O of the disk 7 extends away from the roller toward the disk 8, and lits snugly within the rim 10 of the cap and abuts the disk 8. This flange 20 has Cil ears or lug's`2l extending therefrom at several points and passing through slots or apertures 22 in the disk' 8, and said ears' are bentl to overlap the disk 8, and thereby securely hold the disk 7 within the cap. Thus,-

in manufacture, the disk 7 and cap can be readily stamped from sheet metal,y and the dog 6 and spring 13 readily secured to the disk 7 by means of the pins or rivets 9 and 14. In assemblingk the device, the disk is inserted intoV the cap and the ears 2l inserted. through the apertures 22 and then bent. The rim l of' the cap and flange 2O have a slot or opening 23 for theoutward movement of the dog 6 to engage the lug 5.

During the normal speed ot' rotation, the roller l in Winding up the shade 2, the spring 3 will resist they tendency of the dog, G to swing outwardly by centrifugal force, so that the roller will not be locked or stopped accidentallyv during the winding up of the shade. However, should the shade slip out of the hand or be otherwise released so as to the shadeas well as -eliminating the annoy.

have a tendency to Hy up or wind up. at an excessive speed, the increased speed Ot rotation of the roller will result inthe added centrifugal force throwing the dog 6 outwardly so that its abutment 16 will pass over and engage the lug 5, as seen-in Fig. l, thereby stopping or locking the roller against further rotation. rlhis vwill avoid injury to ance of vunwinding same when completely wound up. By the provision ot a single lug 5, the remainder of the Circular path of the dog G is unobstructed, so that ythe dog is given a large arc in which to move outwardly to a position to engage the lug 5. The ortion 17 in contacting with the pin or spin le 3 willlimit the inward movement of the dog under the tension of the spring, when the roller is turned to release the dog from the lug 5.

thereof so asy to lie behind the roller and afford greater strength and to also require less'material or stock for the bracket.

Having thus described the invention, what is claimed as new is l. A shade roller stop comprising a cap t0 be fitted on the end of a roller for rotation therewith, a disk separate from and fitted within the cap to rotate. with it, anda dog carriedv by the disk between it andthe cap and swingable outwardlythrough the cap to engage a ixed stop. l

2. A shade roller stop comprising a cap to tit onY and .rotate with the end of' aroller, a disk separate from and iittedwithin the cap to rotate with it, anda dog-,carried by the disk Vmovable outwardly through the cap for engaging a stop to stop the roller.

3. .if-i shaderoller stop comprising ja cap to fit on androtate with the end of a roller, a disk separate from and ttedwithinthe cap to rotate with it, a dog carriedby the disk movable outwardly from the cap for. engaging stop to stop the roller, and va Vspring for the dog also carried by saidl disk for returning said dog.

a. A shaderoller stop comprising a cap, adapted to fit over the end of a roller, adisk within said cap having a marginal flange with portions engaging through thecap for securing the disk and cap together, a dog pivotally carried by saiddiskbetween it and the cap, the rim ot the cap having a slot through which said dog.y is movable outwardly for stopping the roller, and a spring carriedv by the disk vand disposed between saiddog and flange for. retraoting the dog within the cap. Y Y

In testimony whereof hereunto affix my signature.

-WALTER C. MOORS.

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