US1670886A - Collapsible rewinder - Google Patents

Description

' May 22, 1928.

l w. c. FELLows co'LLAP'sIBLE REWINDER Filed Feb. 1e, 192e 2 sheets-sheet 1 d' .-LO

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w. c. FELLows COLLAPSIBLE REWINDEH Wa/ler fie/hws.

Patented Mey z2, 1928..

UNITED STATES PATENT OFFICE.

WALTER o. FELLOWS, or PHILADELPHIA, PENNSYLVANIA, AssIGNoR 'ro C. E. CABVE COMPANY, A ooRPoRATIoN oF PENNSYLVANIA. f

coLLAPsIELE REWINDEE;

taglio printing die or plate, and wherein the f `rewinder is adapted for quick and effective release of the paper cloth or other lweb after the same has been wound in roll form about the Winder and preliminary to the replacement by another web.

More specifically, my improvements'comprise a shaft adapted to be positively rotated and provided with a plurality of longi-y tudinal bars spaced about the shaft and two or more of which are lhinged adjacent'to one end thereof and are normally held in parallel lrelation with the axis of the shaft by aslidy ing sleeve having cam surfaces, said sleeve arranged adjacent to the other end of the shaft and providing an outward thrustupon the hinged bars for holding them in distended parallel relation with the shaft and for allowing them to collapse when it is desired to remove the wound web roll, rand wherein further, the shaft is provided with locking means for engaging the sliding sleeve and retaining it in a locked position when the bars have been spread to their maximum capacity, the said locking means preferably formed of a sliding collar` which, in one position, may be moved away from the sleeve when collapsing the rewinder, and

in another position moved toward the sleeve when expanding the rewinder', and being locked in such position by a. slight rotation upon the shaft.

My invention also comprises features'of construction which, together with those above enumerated, are more fully described hereinafter and specifically pointed out in the claims.

My invention will be better understood by reference to the drawings, in which: Fig. 1 is a side elevation of my improved rewinder in operative position with supporting and actuating parts of a machine; Fig. 2 is a longitudinal and vertical section of they same, taken on line 2-2 of 3; Fig. 3 is a transverse sectional view of the same, taken on line 3-3 of Fig. l; Fig. 4 is a view corresponding to the right hand end of Fig. 2 and'also corresponding to a section taken on line 4 4 of Fig. 5, and showing a modiication of the expanding and collapsing means shown in Fig. 2; Fig. 5 is a transverse section taken on line 5-5 of Fig. 4; Fig. 6 is a sideelevation of my inventionin which toggle collapsing means are provided in place of cams; and Fig. 7 is a transverse sectional view taken on line 7-7 of Fig. 6.

Referring first to Figs. l, 2 and 3, 2 isa longitudinal shaft having at one end a head or spider 3 made with radial projections 4 arranged in pairs and providing ybetweenthe projections of each pair a longitudinal slot ll, and the other or distant end oft-he shaft is preferably reduced in diameter as yat 2l whereby it is adaptedto be received in a slotted bearing 19 against which it is shouldered. The` head '3 is preferably formed with a square hub 7 having a tapered bore or socket 8 in its end adapted to t over and v be centered by a stud 2l upon a rotating shaft by'which the rewinder is supported; Furthermore, the square end of the hub 7 fits between lugs 22 on a rotated member 20a whichma be frictionallydriven by'a member 20. he present invention, however, is not concernedwith the particular' means for driving the rewinder. e

5. are four longitudinal bars eachrespectively fitting one of the slots 11 in the head 3 and hinged therein by a transverse pin 6. As shown, these pins are preferably adjacent to the web side of the slots so as to leave a greater guiding capacity to the slots for the heel extensions 5c of the bars. The bars have their free ends 5a beveled on their inner panding the rewinder, as shown in Fig. 1.

` In this position, the outer edges of the bars 5 are preferably parallel, in which case they would lie in the perimeter of a cylinder whose axis would be coincident with the axis of the shaft 2.

Asshown in Fig. 2, the shaft 2 is reduced in diameterl along a portion of its length, as at 2a, and providing shoulder 2C between the sai-d part 2 and the main part ,adjacent to the bars, and it will ,be imderstood that when the sliding,l sleeve 9 is moved to the position shown in Fig. 1, it vcontacts with the shoulder 2 to limit its movement when expanding` the rewind-er. furthermore, slotted and is held against rotation upon the shaft by the 'spline 111 arranged along the part 2 of 'the shaft and also received in the longiitndi-nall slot in the sleeve. rllhe relation of the slot and the spline 14 is more clearly indicated in Fin'. Vhen the sleeve is moved to the eXpandini;l

position, it is as shown in Fig. 1, and when it is moved to the collapsing position, .it is as shown in Fig. 2, and its movement in this latter direction is limited by reason 'of resting` against the collar 15, said collar'being limited in its movement to the rightl by the stud or pin 18 in the shaft portion Qa. lt is manifest, that if'the screw or pin not employed, the stud or pin 17 will act alimit stop for the sliding' sleeve 9. lt is, therefore, not important whether the collar 15 or the stud 17 limit the collapsing' movement of the sleeve 9. The principal purpose of the screw or pin 18 is to normally retain the locking` collar 15 upon the shaft and to permit it to be removed when dismantling or taking-the rewnder apart.

The sleeve 9 is preferably provided with a `milled hub. 13by which it may be `ojrasped and moved. The locking collar 15 is circular and bored to slidably fit the shaft portion 2a and is slotted at 16 to permit its movement longitudinally upon the shaft ortion 2a notwithstandino` the 'iresence of v s l theI stud 17. In Fig. 2., it will be seen that whenthe collar 15 is moved to its extreme unlocking position, this stud 17 within the slot 16. When, however, the sleeve 9 is moved to the expanding` position, the lock` ing,T collar 1 5 moved to the left over the stud 17, and thence, by a partial rotation, the slot 16 is moved'oiit of alinement with the stud and thereafter the collar forms a hub of the sliding sleeve 9, with the result that the latter is then locked in its expandrllhe sleeve 9 is,`

than would be the maximum radial position of the outer edges of the bars between the fulcrums or pins 6 and the free ends 5a' of the bars, and which, when the bars are collapsed, would make the extended ends 5C bind upon the paperor other web roll formed about the bars, and thereby'male it more difficult to remove the same when vthe rewinder was collapsed. To prevent thisl dii'liculty, the ends 5 of the bars, beyond the fnlcrnm pin, are beveled en ,their outer edges, as at 5d, to such an extent that when the bars are collapsed, as in Fig. 2, these beveled edges 5d will lie in substantial alinen'lent as would constitute continuations of the bars 5 when in the eX sanded osition of Fie. 1

and thereby prevent the objectionable bindseen that the longitudinal bars 5 are positivesl ly hinged at one end and with their greatest width held radially by the slots 11, and have their free ends 5ZL relatively positioned and guided in slots 10 provided by the slidingq sleeve 9, the slots in which also coop-crate in holding the greatest width of the bars in a radial direction whereby the narrow edges 'of the bars alone contact with the interior of the paper or other web. roll. lt will also be seen that as the sleeve 9 is splined upon the shaft 2, it revolves positively with the shaft, and lconseopientlythe slotted portions 10 of the sleeve support andV positively drive` he ends 5a of the bars in a rotary path just as positively as is accomplished at the other ends of the bars by the head or spid'erS; Furthermore, the heel extensions 5 of the bars 5 rest `upon the bottom of the slots 11 when the bars are fully expanded to the position shown in Fig. 1, so that the saidv bars have only a limited rotary movement and 'consequently are more satisfaetory'to handle vand prevent the disengagement'of lthe ends 5" with the slots in the sleeve 9 Vat any time during the normal operation of the device.

The operation of the rewinder will now be understood. lll/dien the parts are positioned, as shown in Fig. 1, the. end of the paper or other web is wrapped about the parallel bars 5 and is clamped thereon by the initial rotation of the Winder, and thereafter, the Winder in rotating', whether vcontinuously or intermittently, winds the web into roll form wherein the layers of the web press'one upon the other. lVhen the pressure is on thebars,

duo to 'the web being tightly wound on the rewinder, the pressure of the barsvon the cam sleeve 9 causes it to press upon the locking collar 15 and thereby prevents it turning upon the shaft 22k `lillhen it is desired to remove the web roll, the winder is removed from the machine by lifting the end @ont of the. bearing;v 19 and withdrawing the winder from the stud 21. The collar ltll) is brought into alinementwith the stud 17. The collar is then moved over the stud until it comes in contactwith .the stud orvpin 18, as shown in Fig. Thereafter, the sleeve 9 is moved toward the collar until it rests contact with it, as shown in Fig. 2, permitting the free ends of the bars to move toward each other. lVhen thisl condition of the parts is obtained, the bars will have collapsed relatively to the roll of webbing and will have removed the friction' thereon, whereupon the Winder in its collapsed 'condition may be withdrawnfi'om the web roll by pulling upon the head 3 or by resting vthe shaft end 2b upon the floor and pushing the web roll downward toward the collapsed ends of the bars and from which it'may be readily removed. It will be seen that when the collapsed condition of the bars takes place, as in Fig. A2, the beveled ends 5d on the edge of the. heel extensions 5c of thevbars do not rise-.above the main edges of the bars when in their expanded condition shown in Fig. 1, and consequentlydo not put any binding action upon the roll even Where the web is of a width which would extend over the fulcrum pins 6. i While I have shown in Figs. 1, 2 and 3, the construction of my improved Winder wherein 'four collapsible bars-5A are employed, it will be understood that it will suffice `if two of said bars only are made collapsible, and this modification is shown'fin F 4t and 5 which illustrate the sliding Isleeve end of the Winder. The only'difference in the construction `shown in Figs. 4 and 5 from what is shown in Figs. 1 and 2 resides in the fact that the beveled edgesh of two of the bars are omitted and the slots 10L1 which receive the modified bars do not Ahave inclined or cam-shaped bottoms 12,

but instead, the bottoms of the slottedportions 10L are parallel to the axis of the shaft 2, and consequently the flat ends 5C`of the bars which fit them permit the sliding sleeve to be shifted without collapsing said bars. The remaining two bars, however,are adapted to vbe collapsed or'expanded as shown in Figs.` 4' and r5, precisely' in the same manner that all of the bars 'are eollapsed or expanded in Figs.f1 and 2.

Referring to the modification shown in Figs. 6 and 7, thel bars 5, 5X are hinged to the head or spider 3, asin thecaseof Figs. 1 and 1, but the manner ofisiipporting two of thel bars against collapsing and the re maining two bars for collapsingr is differently constructed in this ease than in either of the other constructions of said figures. In this ease, the bars 5X are held in rdefinite positions parallel tothe axis of the Winder by means of arms 211 fiXedly bolted tothe shaft 2 of the Winder. In the casevof the remaining two bars 5, these are connected with a: sliding sleeve 9b by links 23, said links being hinged at one end to the sleeve at '26a and at theother end to the bars 5 by .pins. .26. The sleeve 9b is slidably mounted upon the shaft 2 and held thereon against rotation and otherwise is combined With the hub part 13 and locking collar 15 in all mal terial respects similar to the corresponding parts previously described. In the present case, the shaft 2 is made square Where it receives the sleeve/and thel Asleeve is provided with a` square hole fitting the shaft, and thereby `is held against rotationthereon. It will be understood, however, that the ai'- rangement of the slee-ve upon the shaft may be the rsaine as in Figs. 1 .to 5, if so desired. It will nowbe understood that vwhen the sleeve is reciprocated, the bars 5 are collapsed or expandeclfunder the action of the link and sleeve. In Figs. 6 and 7, the parts are shown in their expanded condition, but wheiithe sleeve is `moved to the right, the

vlinlisxwill pull the free ends 5a of the bars downward toward the l,shaft in a positive "apaeity to release the roll ofpaper'or other In` view of the fact that in somev material. machines, the web is tightly wound upon :the rewinder, itis desii'able that more than one of the. bars shall be collapsible and, in the preferred form, all of the bars ai'e colla'p'sible.

The rewinder embodying my improve.- mcnts Tis simple in construction and operation and embodiesa minimum of working parts and'coiisequeiitly is not liable to get out of vworking order. Furthermore, the collapsible bars are .hinged on fixed fulerum .pins at one end and are, therefore, collapsible throughout their entire length when kreleasing the paper roll, and all of the collapsing means are arranged at the end most distant from the fulcruni points. All adjusting screws or clamping devices requiring the operation of screws, nuts or bolts are eliminated, thereby simplifying the construction of the windet'.

It will ,now be apparent that I have devised anovel and useful construction which embodies the features of advantage enumeratedy as desirable, and while 'I have in the present instance shown and described the preferred embodiment thereof which has been'found lin practice vto give satisfactory yand reliable results, it is to be understood that I do not restrict myself to the details, as the same are susceptible of modification in various. particulars without departing from thespirit or scope-fof the invention.

Having now described my invention, what I claim: and desire to secure by Letters Patent is:

13A collapsible 13e-Winder, comprising a shaft adapted to be supported and rotated, combined with a plurality of longitudinal bars having` their outer' edges parallel with the axis of thev shaft when said bars are in expanded position, one or morel off' said bars being hinged at one end to the shaft' and radially collapsible at the other end relai- 'tivelfy' to the sh aft, means slidably mounted upon the shaft for supporting and radially adjusting: the free ends of the collapsible bars, and locking means for holding the slid-ableI means in its position of adjustment for holding' the bars inf expanded condition, and wherein further, the slidabl'e means is provided about its perimeter with slots re'- ceivi-ng,- the ends of the bars and having portions of-those of the slots which receive the expansible members of' said bars formed with cum surfaces whereby said bar orV bars are collapsible when the sleeve is shifted in one direction and radially expandedwhen the sleeve is adjusted in the opposite direction.

' 2'.- A- collapsible rewin-der, comprising a shaft adapted to be supported and rotated` combined with a plurality of longitudinal v bars. having1 their outer edges parallel with the axis of the shaft when said bars are 1n expanded position, one or morel of said bars being hingedv at one end to theshaft and radially collapsible at the other end relatively tothe shaft, means slida-bl'y mounted upon the shaft for supporting and radially adjusting the free ends of the collapsible bars, and locking' means for holding the slidable means in its position olf adjustment for holding the' bars in expanded condition, and wherein further, the locking,` means comprises a pin projecting from the shaft and a collar sleeved upon the shaft and having a longitudinal slot to permit 'the collar to be moved longitudinally of the shaft over the pin and to a. position intermediate of said pin and the slidably mounted means, and in which position the collar is rotatable to move its slotted portion out of alinement with the' pin, and whereby the collar `fills the space between the pin and the slidable means.. i

A collapsible rewinder, comprising a shaft adapted to be supported and rotated, combined with a plurality of longitudinal bars havingy their outer edges parallel with the axis of the shaft when said bars are in expanded position, one or more of said bars being hinged at one' end to the shaft and radially collapsible at the other end relatively to theshaft, means slidably mounted upon the shaft for supporting and radially adjusting th-e free yends of the collapsible bars, and locking means for holding the Lemans combine-dr with a 1ihir'alitv of longitudinal.

bars havingtheir outer edges parallel with the: axis;` of the shaft when said bars are in expanded. position, one or more of said bars being hinged at one end tothe shaft and radially collapsible at the' other end relirti've'ly to the shaft, `means slida'hly mounted ufpon. the shaft for supporting and radially adjusting` the free' ends of the collapsiblev bars', and locking; means for holding the slidabl-"e means in itsv positron of adjustmentV for holding' the bars in expanded condition, a'nd wherein the slida-ble means comprisesy a sleeve-like structure looselyy s-plined tothe shaft so asr to vJositiveliy rotate withit and having radial slots in? which' the ends of the b-a'rs are received and/guided', and wherein further, cam means are arranged' between the bottoms of Vthe slots and the which arel radially movable whereby said bars may be expanded or collapsed A`by the reciprocations of the sleeve.

5. A collapsible rewind'er, comprisingv a sha-ft adapted to' be supported and rotated,

combined with a plurality of longitudinal bars having their outer edges parallel with the axis of thev shaft when saidI bars are in expanded position, one or more of said bars being' hinge-d' at one" end' to the shaft and radially Collapsible at the other endrelatively tothe shaft, means sl'i'dably mounted. upon: the shaft for supporting and radially adjusting thefree ends of the collapsible bars, and locking means for holdingthe slidableA means# in its position of adjustment for holding the bars in expanded condition, and, wherein further', the ends of the bars adjacent toi their hinges-'are provided with heel extensions which' arel guided in slotted portions of a head or spider secured to the shaft,i said heel extensions beveled at their outer edges so that when the collapsible bars are collapsed, the said heel Vextensions shall :not project beyond the/normal maxi.

in their eX- liao upon the shaft for' supporting and radially adjusting the ree ends of the collapsible bars, and locking means for holding the slidable means in its position of adjustment for holding the bars in expanded condition, land wherein further, the ends of the bars adjacent to their hinges are provided with heel extensions which are guided in slotted portions of a head or spider secured to the shaft, said heel extensions contacting with the bottoms of the slots to prevent the other or dista-nt ends of the bars from disengagement with the slidably mounted means.

In testimony of which invention, I hereunto set my hand. WALTER C. FELLOWS.

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