US1686466A

US1686466A - Bead-covering machine

Info

Publication number: US1686466A
Application number: US12243A
Authority: US
Inventors: Edward D Putt
Original assignee: Firestone Tire and Rubber Co
Current assignee: Bridgestone Firestone Inc
Priority date: 1925-02-23
Filing date: 1925-02-23
Publication date: 1928-10-02
Anticipated expiration: 1945-10-02

Description

' E. D. PUTT BEAD COVERING MACHINE Filed Feb. 28, 1925 3 Sheets-Sheet 1 H K5 Q Q I a m INVENTOR.

[DIV/1RD .D. F1177 ATTORNE Oct 2,1928a E. D. PUTT BEAD covmnme MACHINE Filed Feb. 28, 1925 INVENTOR.

[awn/ma Parr BY 6 z ATTORN 5-SheetS-Sheet 2 m mm 1L1 r \W/J W wm 8 mw mm N6 3 R & wk ow Oct. 2, 1928.

1,686,466 E. D. PUTT BEAD COVERING MACHINE Filed Feb. 28, 1925 3 Sheets-Sheet 3 mink ATTORNEY.

- INVENTOR.

Patented Get, 2, 19280 EDWARD D. rum, or ARR-on, orno, Assren'on- TO THE FIRESE'ONE 'rrnnnnn n'cBBnn I COMPANY, or Anson, 0310, A cenrone rron or ornd i 4 BEAD-CGVEBING MACHINE.

' Application filed February 1925. Serial 110.12 .243.

and instrumentalities for progressively foldinz the fabric strip about the bead strip.

The foregoing and other objects are obtained bythe construction shown in the accompanying drawings and; described in detail below. It is to be understood thatthe invention is not limited to the specific construction shown and described.

Of the accompanying drawings:

Figure 1 is'a plan of a machine constructed in accordance with the invention and illus trated as in operation; I r v Figure 2 is a side elevation thereof;

Figure 3 is a section on line 3-3 of Figure 1; p i

Figure 41 is a section on line 44 of Figure 1; v I Figure 5is a section on line 5'-5 of ure 1; V

Figure 6 is a section on-line (S -6 of Fig; ure 1;. V Figure 7 is a section online 7+7 of Fig urel; V r

Figure 8 is a section on line 88-of Figure 1 i a 7 Figure 9 is a section on line 9-9 of Fig ure 1; V

Figure 10 is'a section: on line 1 0-1O of Figure 1; and I r Figure 11 is a section on line 11+11 of Figure 1. I r i I Referringto the accompanying drawings 10 represents a table forming a part of the machine and mounted on a suitable standard 11. For guiding the covering wardly curved guide member 13 is secured onto one-end of'table 10 the member 13 hav ing upstanding guidingfiangges as indicated at 14 thereon. vFor accurately 'positioning the fabric strip 12 on the table 10, guide bars 15,

strip 12 -ontotable 10 from anysuitable source aidown- I 15 are provided between 'whichthe: strip passes from guide 13. The bars 15 are ar-' ranged to be secured in various adjusted positions from or toward each other withfrespect to table 10 being secured on tableflO by

thumb screws

16,16 operable in slots l'l,

1? in an extension plate 18 secured on the leading end of table 10; After passing-from between the bars 15 the strip 12is folded over the bead strip away from the near side of'the machine as shown in Figure 1 and to pro}? vent the'strip12 from beinrr'drawn out of place between the guides 15 by this action a" r roller 19 1s iournaledover the near bar 15' so as to overlie the strip. i

Arranged for guiding the bead strip indi-, cated at 20 into, proper relationshipyonto-the strip 12 on table 10,'a roller 21iormedith a transversely grooved face is, journaled on a bracket arm'22 so as vto'overlie guide 13-a nd adapted to have the bead strip 20 passthereover. A pair of nuidesbrackets23' and 24' are alsoemployed to accurately position the bead strip 20 on thefabric strip 12 One of these brackets 23 vis secured on plate 18 and the other24 is slidable thereon being :no'rin ally urged toward bracketv 23 by acompression spring 25. Aispindle-26 is secured-in bracket 23 by a compression spring {25. IA, spindle 26 is secured in bracket 23'anda third bracket27 on plate 18 and-extends through bracket '2t-and spring: 25. A rollerf28 is orly' positioned 'thereover and to this "end a I pres'ser roller-29 is providech the roller 29 be- }ingadapted to engage strip 20' as shown'i'n Figured The roller 29 preferably is jfou'rnaled on extension 30* on bracket 23. A

,journaled on spindle 26 between brackets 23 f ositioninc' roller 31 isarrancedto en race z; I P. 3.

under the heel otthebead strip 20 to pre'- vent lateral displacement of the-bead stripon nailed on a bracket 32 secured onto bracket 24-. and is accordingly yielding-lyurged aga nst strip 20 by spring 25.

,60. strip'12 by roller 29. Theroller .31 iisjour f roller 29 by a knurled roller 33 operating I through a'l slot 34in the table '1O1andwhic'h may be and preterably'is drivehto feed the strips 12- and 20 :over table 10 as 1 table and yieldingly urgedlagamst the bead 11 adapted to be driven by suitable power 1' means (not shown) Extending longitudinally of table 10 is a 'plate42 on which the various folding; instrumentalities aremounted and overwhich the strips 12 and are accordingly conducted. For first folding one side of strip 12 7 over bead 20 a folding shoe 3is mounted on plate 42 in the path of strip 12 (see Figure For holding strip 20 against the folding action of shoe 43 a roller 44 is provided for engaging under the heel of the bead strip and is held thereagainst fby beingjournaled on an arm 45, pivoted at 46 on table 10 and secured in place by a screw 15*. I

To continue-the folding action of shoe 13 a 1 series of folding rollers 49, 50, and .51 are provided, each roller being-journaled on vertical stud respectivelyindi'cated at e9, 50?, and '51(Figures 5,6, and 7). Eachroller 19, 5O, andi51 is formed with a peripheral groove of the profile of the Ftoe of bead strip 20 so as to press -strip 12 thereagainst and each-is formed with an upper flange 49, 5O and 51 progres- "sively increasing in diameter in the order named to progressively fold and press the :strip 20'onto the upper surfaceof the bead.

I fitting into the groovesin said rollers, a series Inordertohold the strip 20 against the rollers 4 9, 50, and 51 with the toe thereof snugly of

rollers

52, 52 similar to rollers 1 1 are provided for engagement under the Fheel of the .bead strip; 1 The rollers 52 are also similarly mounted on

arms

53, 53 pivoted at 54:, 75 1 on strip 20 by

springs

55, 55 connected between the various arrns53 and a stud 48, For coinp'leting the folding of strip 12 onto the upper surface'of strip 20 a final pressure roller 56 1s employed (Figure 8). This roller is cylindrical and is journaled on a bracket 57 secured on'pla' te 42. Since pressure of the

va rious rollers

49, 50,51 and 56 onthe str1p20 would tend to cause great friction of the V tackyistock 12 on plate 42, a series of

bearing rollers

58, 58 are journaledunder said pressurerollers in a slot 59in plate 12 to prevent binding-of the stock in the machine. KArranged for the next operation on

strlps

12 and 20,n'a mely folding the former about the heeli 'of'the latter, a roller 60 is provided.

The roller 60 is in the form of a'disk rotatable in a verticalplane on a spindle61 secured in .abracket 62 on table 10., and is adapted to fold strip 12 about the heel "of strip 20 in the manner shown inFigure 9.

,iThesi'de of the bead 20 under the heel is concave in sectionan'd accordingly for forming the strip 12'about this portion, there is sprocket 88 on shaft 72.

83 is driven in unison and at the-same speed ,with

rollers

33 and 70.

next provided a roller 63 formedwith a peripheral profile adapting it to fit'said side of bead 20 (Figure 10). The roller 63 is journaled on an inclined spindle 6ft mountedin a bracket 65 adjustable on a second bracket 65 which latter is mounted on frame 10. v The upper portion of roller 63 is roughened or knurled as at 63 for engagement with the strip 12 over the heel of the bead to insure To provide a bearing for strip 20 under rollers 63 ands-66 and also'to drive the strip, a roughened roller 70 operating through a slot 71 in table 10 is arranged to engage the under side ofthe strip; The roller 70 is secured on a shaft 2 journaled under table 10 and driven by a sprocket 73 over which passes a chain 74 driven by a sprocket75 on-shaft 35 Y so

thatrollers

33 and 70 are driven in'unison and at the same speed. i T

A set of

rollers

76 and 83 are arranged for a final bead pressing and driving action. The roller 76 is formed with a peripheral groove of the profile of'the top of the bead strip (Figure 11') and 'isjournaled on an arm 77 pivoted at 7 8 on table lOfand urged by a spring 79'downwardly againstthe strip 20, the pressure of spring 79 being adjustable by operation of a thumb-screw 80 011 a threaded rod 81, encircled by the spring and extending through an apertured lug 82 on arm 77, the rod 81 being securedon table 10.

The roughened roller 83 rotates through a slot 8 1 in table 10 and engages the under surface of strip 20 (Figure 11) I It is driven by a shaft 851' ournaled on the under side of table lOand driven by a sprocket86 over which is trained a chain 87 which "is driven by a Accordingly roller The operation of the device which will be inn understood from the foregoing maybe briefly summarized as follows:

I A strip 12 from a suitable source (not :1 shown) is guided onto table 10 between bars 7 21 under roller 28 between guides 23 and 2 1* and under roller29 onto strip 12. The

rollers

33, 70, and 83 are then continuously driven and strips 12 and 20 are thus drawn through the machine, the strip 12 being progressively formed about the bead strip 20 in the manner shownin Figures 3 to 11 which illustrate the operations of the machine in the sequence in which they are performed. The portion 112".v of strip 12 is left unfolded as shown in Fi ure 11 to provide means for anchoring the head in a tire carcass. i

It will be apparent from the foregoing that i the machine of the invention is adapted rapidly and effectively to cover continuous bead strips in preparation for use in tire building.

' Modifications of the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.

' What is claimed is 1. Apparatus for continuously folding astrip of fabric about and pressing it onto a stripof bead material comprising a support including a series of rollers on which said strips are carried, means for guiding thev strips nto Contact with each other on-said" prising a support, means for guiding a fabric strip thereon, means for guiding a'bead strip thereon means for ressin said stri 38 together, means for progressively folding said fabric strip about .said head strip,said means including a series of rollers journaled on said support so that their axes are substantially perpendicular to said support with their peripheral portions positioned to be tangential to the bead strip and formed with flanges for overlying said bead strip, said flanges being of progressively increasing diameters, and

means for holding the bead strip against the rollers.

3. Apparatus of the class described comprising a support, means for feeding a strip of fabric havinga strip of bead 'inaterial thereon over said support means for folding and'shaping said fabric about said bead materialincluding a series of rollers journaled' on said support, the axes of saidrollers being substantially perpendicular to sa d support with the peripheries thereof positioned to be tangential to the bead material and said rollers being formed with progressively larger folding flanges for overlying said bead strip, and means for guiding the core strip into contact with the peripheries of the rollers.

4:. Apparatus oftheclassdescribed 0011b,

prising a support, including a seriesof bear ing rollers, means for feeding a stripof fabric having a strip of bead material thereon over said support means for folding and shaping said fabric about said bead material including a series of-rollers journaled on said support, the axes of said rollers being substantially perpendicular to'said support and the peripheries thereof being so positioned as to be tangential to the bead material andsaid rollers being formed with progressively larger fold- 1 ing flanges overlying said bead strip,.a nd

means for guiding said head material in contact with the peripheries of said rollers.

5. Apparatus ofthe' class described, comprising means for continuously feeding a core strip and a covering strip intojuxtaposition,

means for folding the covering strip about the core strip comprising a Series'of rollers, the peripheries of which are adapted to be tangent'ally engaged by one edge of the core I strip, said rollers havingflanges for extending over the core strip, said flanges being of progressively increasing diameter, and means I for urging the core strip against the periphe cries of said rollers including a series of roll 'ers yieldingly urged against the other edge of the core strip.

6. Apparatus of the class 7 described, coma prising means for continuously feeding a corestrip and a covering strip into juxtaposition,

means for folding the covering strip about the core strip comprising a series of rollersythe peripheries of which are adaptedto be tangentially engaged by one edge of the core strip, said rollers having flanges forlextenll ing over the core strip, said flanges being of progressively increasing diameters, and

ripheries of said rollers.

prising means for continuously feeding a core strip and a covering strip into juxtaposition, and means for ,folding, the covering strip about the core strip comprising. a series of rollers, the peripheries of which are adapted to he tangentially engaged by one edgei of the core strip, said rollers having flanges for 6X5 means for urging the core strip against the pe- 7. Apparatus of the class described, com-h tending over .the'core strip, said fiangesbeing 7 of progressively increasing diameters.

EDW n; PUTT. I