US1775364A - Curtain-roller construction - Google Patents

Description

' Sezpt` 9, 1930. T. w. HOL-r Er AL 1,775,364'

CURTAIN` ROLLER CONSTRUCTION Fired Feb. 8, 1929 2 Sheets-Sheet 1 I N VENTORS f ATTORNEY.

Sept. 9, 1930. K T. w. Ho| 1 ET AL 1,775,364

CURTAIN ROLLER coNs'rRUc'rIoN Filed Feb. 8, 1929 -2 Shats-Shet 2 INVENTORS: Gzfm/ w. z/fz ae, BY frn/nf ATTORNEY.

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Patented Sept. 9, 1930` cURTnIN companion nLKnnn'r, infiamma, A CORPORATION or DELAWARE j CURTAIN-ROLLER CONSTRUCTION f y npiineanon flied February e, "1929. serial No. 338,55?.

I This inventionrelates to curtainrollers and thelike and has for its object, a particularly simple and economical construction of a curtain roller and more especially the assembly o the head of the barrel, the mandrel mounted therein to Which the spring of the roller` is, attached and means for holding the head and the'mandrel` in assembled relation.

The invention consists in the novel features and in the combinations and Constructionshlereinalter set'tort-h and claimed.

` Infdescribing this'invention, reference is had to the" accompanying drawing in which in all the views." y i y y *Figure l isvan elevation, partly in section, of 'a roller. embodying our invention.

Figure 2 is ran enlarged fragmentary sectionalview oit' the head and the mandrel and contiguous parts.V

Figure 3 is an end elevation of parts seen in Figure 2.V u

i Figure 4 is a face View of V,one of the brackets for supporting the roller. `H y Figure 5 is an enlarged. fragmentary detail view illustrating the interlocking of the cross bar of the Washer-With the bifurcated end of the mandrel.

like characters designate correspondingparts u `Figure is an-enlarged perspective view of the hea-d,` mandrel and. contiguous `parts shown as separated. Y

` This roller comprises generally, a barrel, heads at the ends ofthe barrel, a mandrel mountedin thebarrel and extending through one of` the headsthereoif, the part projecting beyond the heads forming an axle for the roller, this partbeing bifurcated providing` i separated tongues and means for securing the head to the aXleto hold them from `relative axial l movement, said means including a thrust member or Washer having a diametri-l cally extending bar for ventering between the bifurcations and4 said bifurcations having means for interlocking With the cross bar andiholding the thrust member or Washer rom'axial movement, the annular `part of the body of thethrust member `or Washer holding `the bifurcated end from spreading unuse of 'the roller.

der 'the torque action of the cross barl in the silient spring tongues.

may beef any suitable forni, size and con ws1-mf@Fee-1E THOMAS W. nom .Ann JOHN F. Leven, or nLKH-An'n iNnIANn,Ass1eivons ToEXonL 1 struction, it being here shown as rolled-up from sheet metal into tubular 'form and also formed with a lengthwise groove E2 in which the curtain isvsecured or in Whichthe means which isattacl ed to the `curtain is secured. The barrel construction :forms no part of this invention. A

3 ande designate the heads or flanges at 0pposite ends ot the barrel. The heads are secured in the barrel in any suitable manner. As. iere illustrated, each head is formed With prongs 5 arranged'tosnugly iit Within the barrel and these prongs maybe secured tothe barrel byindenting the barrel intothe` g prongs or they may be frictionally held in position. The prongs extend on opposite sides of the Walls of the groove 2 so that the walls of the groove serve asa key or spline to key the heads to the barrel, These prongs i are preferably struck up from a discoidal base C lying against the adj acentheadand secured thereto in any suitable manner as by riveting. This feature forms no partof this in ifention.v C i l The head l is formed with a central opening 7 for receiving a stud provided on the supporting bracket 8. ,i f y 9` is amandrel rolled upv ott sheet metal into tubular form, the mandrel being arranged coaxially et' the roller andprojecting beyond the head 3 forming an axle for coacting ivith a suijiportmgbracket l0. The mandrel 9 at its inner endextendsthrough anV opening 1l in an internal bearing disk 12 fixed in the barrel and is journall'ed at its outer end in the head 3.

f 13 is a torque spring coiled about the inan-` drel and anchored at one` end at 14 thereto and at its other end to the prongs 5 Which are secured to the head 3. Thus, the spring `when tensioned, tends to turn the roller l,

assuming ofcourse, that the mandrel is held trom turning movement.` The mandrel at its outer end is formed; bifurcated by forming diametrically opposite lengthwise slots 9EL therein. As the mandrelis Jformed of resilient sheet metal, these slots provide rerl`he means for holding the head 3 and hence, the barrel from axial movement on the mandrel or the barrel and the mandrel from relative axial movement, comprises one or more thrust members 15, 1S. As here shown, there are two thrust members, one located on the inner and the other on the outer side of the head The member 15 is a thrust Washer fitting on the mandrel and having a cross bar 17 extending through the slots 9a of the mandrel, that between the bifurcations at the end of the mandrel, the cross bar abutting against the bottoms or inner ends of the slots. rlfhe thrust Washer 15 overlies the discoidal body on which the prongs are provided and usually an ordinary fiber Washer 5 is interposed between the member and the discoidal body 6.

The member for holding the head 3 and mandrel l from relative axial movement outwardly, comprises a Washer 18 having a diametrically extending cross bar 19 extending between the bifurcations at the end of the mandrel, the bifurcations being formed with means for interlocking with the cross bar 19 With a snap action, this means being here shown as ratchet teeth 2O projecting into the slots 9 in order to engage behind the cross bar 18 When it has reached its final assembled position.

Preferably, the inner portion of the slots between the bifurcations are Wider than between the outer or entrance portions and the cross bar 19 is of greater Width than the outer portions of the slots providing the ratchet teeth 20, so when the Washers are placed in position, particularly the outer Washer 18, the bar 1S) Will tend to spread somewhat, the resilient bifurcations and hence, when the cross bar reaches its final position in the Wider portions of the slots. the spring arms will 'eact causing the teeth 2O to ratchet or snap into engagement with the cross bar and hold the member 1S from outward displacement. The annular part of washer holds the bifurcations or prongs from distorting due to torque applied by the crossbar to the rotating roller during the winding and unwinding thereof.

The member 18 is formed with peripheral ratchet teeth 21 for coacting with parvis 22 on the head of the roller in the usual ma ner. The bifurcated outer end of the mandrel also enters a socliet in the support-ing bracket l() and moves astride a cross bar in said socket. T he inner end of the mandrel is similarly bifurcated at 25 and has a Washer 26 thereon having its cross-bar similarly interlocled with the bifurcated inner end. This Washer 2G coacts with the disk 12. The disk 12 and mandrel are assembled as a unit and hence, are removable and replaceable in the barrel as a unit through one end ofthe barrel.

Owing to the resilient bifurcations and the projections or ratchet teeth thereon and the cross bars of the Washers 15 and 18, the washers are assembled in a particularly simple and economical manner and owing to the fact that the mandrel is formed hollow or rolled up from a strip of sheet metal, the resilient bifurcations are economically provided.

lVhat we claim is:

1. A curtain roller construction comprising a barrel. heads at the ends of the barrel, a hollow mancrel mounted in the barrel and ortei'iding through one of the heads thereof,

he part projecting beyond the head forming an axle for the roller, a torque spring encircling the mandrel and anchored at one end to the barrel and at its other end to the mandrel., the end of the mandrel which projects through the head being formed of resilient material and with a lengthwise slot forming the axle end of the mandrel bifurcated, the slot providing the mandrel with resilient tongues on opposite sides of the slot, a thrust member mounted on the bifurcated end adjacent the head and having a diametrically extending cross bar. for ente-ring the slots of the axle and thrustingr against the bottom of the slot, said thrust member being located on the inner side of the head,a second thrust member mounted on the axle outside of the head and having a diametrically extending cross bar located in said slot, the cross bar of the second member and the Walls of the slot having means for interlocking With a snap action to hold the second member from endwise movement when it is in its final position. l

2. A curtain roller construction comprising a barrel, heads at the ends of the barrel, a hollow mandrel mounted in the barrel and extending throughvone of the heads thereof, the part projecting beyond the head forming an axle for the roller and said part being formed of resilient material and bifurcated forming spring tongues and a bracket formed with a socket for receiving the axle and a diametrically extending cross bar for entering between the spring tongues.

3. A curtain roller construction comprising a barrel, heads at the ends of the barrel, a mandrel mounted in the barrel, and extendthrough one of the heads, the part proj ectiug beyond the head forming an axle and being formed of resilient material and bifureated forming spring tongues and means for holding the mandrel from axial movement relatively to the head comprising a thrust member mounted on the bifurcated axle and having a diametricalily extending cross bar for entering 'between the bifurcations, the bifurcations being formed with ratchet teeth for engaging the cross bar and holding the thrust member from endwise movement.

Ll. A. curtain roller construction comprising a barrel, heads at the ends of the barrel, a mandrel mounted in the barrel and extendiso ing through one of the heads thereof, the part projecting lbeyond the headl forming an axle for the roller and being formed of resilient material and bifurcated thereby providing spring tengues,means fitting on the mandrel thrustingagainst the inner and outer faces of the headin which the axle is mounted, said means comprising washers fitting the man thereof, the part projecting beyond the head forming an axle for the roller, said axle being formed of resilient material and bifurcated thereby providing opposing spring tongues and means for holding the mandrel from axial movement relatively to the head,

said means comprising `a washer fitting theL periphery of the mandrel and having a cross bar extending between the bifurcations.

6. A curtain rollerconstruction comprising a barrel, heads at the ends of the barrel, a hollow mandrel mounted in the barrel and *extending through one of theV heads thereof,

the part projecting beyond the head forming an axle for the roller, said axle being formed of resilient material and bifurcated, thereby providing opposing spring tongues and means for holding themandrel from axial movement` relatively to the head, said means having a portion extending between the bifurcations, said means and the bifurcations having means for interlocking with a ratchet action when said means is placed in final position on the mandrel and thereby preventing` relative axial movement of the mandrel and the head.

7. A curtain roller construction compris`- ing a barrel, a bearing member in the barrel, ahead at one end of the barrel, a hollow tubular mandrel mounted Vin said bearing member and the head and having its ends bifurcated, the bifurcations being of resili` ent metal thereby providing spring tongues,

means for holding the mandrel from axial displacement comprising washers itting the bifurcated ends and each having a cross-bar extendingbetween the bifurcations at each end.

8. A mandrel for curtain rollers and the like, said mandrel vbeing tubular and slotted at one end to form a bifurcated end, said end being formed of resilient metal, a thrust member comprising a washer fitting the mandrel and having a cross bar extending through the slotted end.

9. A mandrel for curtain rollers and the like, said mandrel being tubular and slotted at one end to forma bifurcated end, said end being formed of resilient metal, `a lthrust member comprising a washei fitting the mandrel and having a cross bar extending through the slotted end, the cross bar and the bifurcations at saidend having means for intery locking.` y

l0. A curtain roller construction comprising'a barrel, heads at the ends of thefbarrel,

a hollow tubular mandrel formed a strip, of sheet metal rolled in tubular form, a portion of the mandrel extending beyond one of the heads forming the axle for theroller, a

torque spring located inthe barrel and connecting the barrel and themandrel, the axle formed of resilient metal, thereby providing two tongues and means for holding tlie mandrel from axial movement comprising a washer abutting against the hea-d and having a cross bar extending between the tongues.

11. A curtain roller construction comprising a barrel, heads at the ends of the barrel, a hollow tubular mandrel formed in a strip of sheet metal rolled in tubular form, a portion of the mandrel extending beyond one of the heads forming the `axle for the roller, a torque spring located in the barrel and connecting the barrel and the mandrel, the axle being bifurcated at one end, said end being formed of resilient metal, thereby providing i two tongues and means for holding the mandrel from axial movement comprising a washer abutting against the head and having a cross bar extending between the tongues, the tongues having teeth for snapping into engagement with the cross bar.

l2. A curtain roller construction comprise ing a barrel, heads at the ends of the barrel,

a hollow resilient sheet metal mandrel mount` ed in the barrel and extending through one of the heads thereof, the part projecting beyond the head forming an axle for the roller, said axle having lengthwise slots atits ends bifurcating the axle, the projection part being formed of resilient metal, whereby the bifurcations provide spring tongues, a thrust member for holding the head and mandrel `from relative axial movement comprising a washer having a cross bar extending transversely through the slots, the slots being wider toward their inner ends than their outer ends providing ratchet teeth and the cross bar being wider than .the narrow portions of the slots.

In testimony whereof, we have hereunto signed our names, at Syracuse, in the county of* Onondaga, and in the State of New York, this 28th day of January, 1929.

THOMAS W. HOLT.

JOHN F. LEVAN.

being bifurcated at one end, said end being.

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