US1380448A - wheildon and e - Google Patents

Description

W. M. WHEILDON AND E. H. ANGIER.

WRAPPING MACHINE FOR ANNULAR ARTICLES.

' APFHCATION HLED APR-26,1912" 1,380,448 Patented Jun 7, 1921.

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W. M. WHElLDON AND E. H. ANGIER.

WRAPPlNG MACHINE FOR ANNULAR ARTICLES.-

APPLICA ION FILED APR.26,19!7.

Patented June 7, 1921.

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WRAPPING MACHINE FOR ANNULAR ARTICLES.

APPUCATION'FILED APR. 26, 1917,

1 80,448 Patented June 7,1921.

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UNITED STATES PATE-T OFFICE.

WILLIAM M. WHEILDON, 0F ASHLAND, AND EDWARD H. ANGIER, OF FRAMINGHAM, MASSACHUSETTS; SAID WHEILDON ASSIGNOR 'IO SAID ANGIER.

WRAPPING-MACHINE FOR ANNULAR ARTICLES.

Specification of Letters Patent.

Patented June 7, 1921.

Application filed April 26, 1917. Serial No. 164,825.

To all whom it may concern Be it known that we, WVILLIAM M. WVHEIL- DON and ED'WARI) H. ANGIER, citizens of the United States, and residents of Ashland and Framingham, respectively, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Wrapping-lvlachines for Annular Articles, of

.which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This; invention relates to wrapping machines and the purpose is to provide a device which will neatly and expeditiously wrap an annular article, such for example as a pneumatic vehicle tire, with a strip of paper.

Our invention will best be understood by reference to the following description of an illustrative embodiment thereof shown in the accompanying drawings wherein Figure l is a front elevation of one suitable form of machine;

Fig. 2 is a central longitudinal section;

Fig. 3 is a transverse section;

'Fig. i is a detail of the mechanism used for plaiting the wrapping strip;

Figs. 5 and 6 are sections taken along one of the elements of the cylindrical supporting drum and show the parts in different positions which they take during the operation of the machine; and

Fig. 7 is a central transverse section through a vehicle tire shoe inclosed in a wrapping applied by the machine shown.

While our invention is applicable for use in wrapping various annular or toric articles a conspicuous instance of such an article is a pneumatic vehicle tire and for convenienco in description we shall refer to a tire as exemplary of other articles of similar form and we have herein shown the machine at work in wrapping a tire.

An understanding of the mechanism herein disclosed will be facilitated by a brief description of the package formed by its operation. \Ve refer therefore to Fig. 7 in which we have shown a pneumatic tire shoe incloscd in a wrapping such as would be applied by the machine illustrated. The tire a is inclosed by a strip of paper 6, fitting the cross sectional circumference thereof. This'strip of paper I) encircles the inner circumference of the tire and has edges inclosing the sides of the tire and presented in opposition to each other, herein adjacentthe tread, where they are secured together as for example by means of a sealing strip 0. It will be understood that the circumference of the tire is greater from the rim side outwardly. In order to permit the paper to be fitted to the shape of the tire therefore it is provided with transverse plaits (Z and as the edges ofthe paper strip extend up around the tire sides these plaits are opened out to a greater or less extent as may be necessary to accommodate the increased dimension of the tire.

Referring therefore to the mechanism chosen for illustration, and referring particularly to Figs. 1 and 2, the machine shown embodies a suitable frame 9, having standards 10 and 11 at either end, in one of which as the standard 10 at the left of Fig. 1 is journaled a shaft 13. its shown in Fig. 1, this shaft may be driven from an electric motor 15 mounted on one of the standardsby means of a suitable train of gearing 17 The shaft 13 carries a support for the tire which is to be wrapped, which support herein takes the form of a drum 19, the cylindrical surface of which is a flange extending from a disk 21 fixed on the shaft. The surface of the drum may also be supported by webs 23, the outer portions of which are conveniently bifurcated, as seen best in Fig. 8, for a purpose presently to be described.

With certain parts in the dotted line position shown in Fig. 1, description of which parts we for the present postpone, the tire a may be placed upon the drum 19. Guiding and centering means are provided for the tire, conveniently in the form of rolls 25, 27 and 29, which form a set concentric with the drum 19. To move these supporting rolls in and out away from the center of the drum, to permit the tire to be placed in position and then to be engaged by the rolls, which, as seen in Figs. 1 and 2, conveniently have concave peripheries to fit the tire tread, the several rolls are mounted (Fig. 3) on bell-crank levers 31, 33 and 35 pivoted on an are shaped plate 36 which rises from the base 9 and partially encircles drum 19. The several levers are connected by links 87 and 39 arranged to be actuated the foot pedal will swing the ration or to permit the tl rum 1 bell-cranks so as to more the seceral ro outwardly and thus permit the assembled with the drum.

air meshing Ll in tread of the tire as illustrate As has been explained, the purp machine here shown is to wra 57 which wil CK new.

rip of p is adjust be operated by pech.

lerstoml that it l 7 the 80 which i will be um leh with a st iper whle 1o grully over the inner eirciuniterenee i and has its edges joined to term a co inclosing easing. li e hare uirthermo plained that the paper is ti by plaits. of

used in wl' re is The strip upping the t1 the drum bletl therewith on tire itself, the drum tor-min t D e 1m e Q JO l t n 1 G L Y li t R 1 1 U17. 1

0 Di i u e 3 5 F 1 m m S 3 w im .1 16 6h mt t H 1 e 5 G C on 3 1 1 J drum to cause inrlepentl- 85 1e rolls.

2r tl the .1: .1

tent hen tl f thi a trensver suitabl tecl on the s iclth of t invention a roll of in Fig. 3, is menu the drum, the adapted for the purpose in. erabl not 'rea ire. ;e in 90 "1p pi g the er The end 0 J rum.

, machine to l? led th iat rough .exlso ti of the drum at whi mounted rolls e5 (see and ire onto 95 r l9 ls unenor will depress the 1 s5, 2 slip e t mo. into the plane merino the ZOl then t io

drawn out to the surrace 0 0 before or after the tire s a ll line ill n the mac l o l T he on (l peoel is then released anr on "the outer r/, us iuzheati for vitlecl mechanism for strip as it is brought outer surface of the (lr this purpose we may 1 nu Th 0 m n w v M t S u t a e h .M t i v] 1 1.... 4m to B Q .1 1

anism but eon' ei in detail in Fi 4 with reference figure and to Fig. 3 we describe it.

motor the drum l9 throu gh which roe meeh

eecl to shall next 40 Referrir 7 from the rol roll the surnice thereof lg to Fig.

l 423, betw eing a drive titled. wi h suitable recesses operate with teeth 0 9 1 S 1 b p e 1 r 4.4L S r0 oarent that t l suitable tightly For this in to be ee nulle 8t 13o be elem aner i ace tl 1 posi one point slightly As seen in 1 i ter ramus so tio , it will be 1' sid he recesses 01 and will eession of open loops. clown into flat plaits the por roll 49 between the teeth 58 rises or portions o1 grea the rolls turn and these par operation with the strip ward taster than at other time mouth of the loop which 11 by a cooperating tooth a the strip is thus delivered tlwith the portions on eithe 60 in close proximity and that therefore will roll down the loop into a flat plait as illustrated. Fi 3, the shaft of the re mounted to permit the high poin G5 the roll 17.

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and the tire and paper thus firmly secured in position.

We shall next describe the mechanism whereby the edges of the strip of paper are raised from the surface of the drum and folded up about the sides of the tire and in doing so we shall refer chiefly to Figs. 3, 5 and 6. At suitable points about the circumference of the drum are pivoted folding arms 83, conveniently in opposed pairs. Corresponding elements of each pair form a set which is pivoted on a circumferential line adjacent the tire holding portion 77 of the drum. The surface of the drum may be provided with slots to receive these arms the bifurcated outer portions of the webs 28, clearly seen in Figs. 2 and 3, providing for the support of the drum at either side of these slots. As seen in Fig. 3, connecting members 87 are provided connected by universal oints, as shown, to the arms at their pivotal points, so that movement of one arm of the set will cause corresponding movement of the other arms. The tire, paper strip and folding arms 85 being in the position shown in Fig. 5, the operator will grasp one arm of each set and fold the two upwardly to the position shown in Fig. 6 and it will be understood that because of the connecting members 87 the other pairs of arms all around the circumference of the tire will be similarly actuated and consequently the paper strip 6 will be folded up around the sides of the tire all around its circumference and that the several plaits therein will open out to permit it to be thus folded. In order to insure smooth and uniform application of the paper to the sides of the tire the outer ends of the arm 85 are connected by close wound springs 89, best seen in Fig. 3, so that the paper is subjected to a folding and smoothing out action all around the circumferenee. The springs 89 considered as a unit form an expansible and contractible ring which is normally positioned free of the tire but of which the circumference may be altered to move the paper and press it against the sides of the tire throughout the circumference of the same. As best seen in Figs. 5 and 6 the surface of the drum may be provided "with circumferential slots 91 to receive the springs 89 when the arms 83 are folded down. Then the arms are in this position the springs will assume a polygonal form as shown in Fig. 3 and will exert no tendency to lift the arms 83 from the slots 85. 7

After the paper has been folded upabout the tire in the manner illustrated in Fig. 6 it is preferable to provide means for more closely fitting it thereto and forsmoothing out the plaits more neatly than might be possible because of their spontaneous opening when the paper is forced outwardly by arms .83 and connecting springs 89. For this purpose I provide mold members 98 and 95 having faces corresponding to'the profile of the tire. The member 93 is carried by a sleeve 97 slidable as regards the shaft 13, as will be readily understood from inspection of Fig. 2, so that it may stand clear of the drum 19 as illustrated in that figure or be moved over the surface thereof into cooperation with the sides of the tire. The member 95 is mounted on a shaft 99 slidable in a bearing in the left-hand standard 11. the shaft 99 being in alinement with the shaft 13. Member 95 has three positions. First the dotted line position of Fig. 1 which is further to the right than the position illustrated in Fig. 2. In this position the member 95 is spaced away from the shaft 13 and drum 19 providing a space through which the tire may be introduced to place itupon the circumference of the drum. The second position is that shown in the drawing. The third position is farther to the left so that the face of the member 95 cooperates with the side of the tire and presses the paper therearound.

The mold members 93 and 95, as seen in Fig. 1, may be actuated by a handle 101 pivoted to the frame at 103 and connected by a link 105 to a hub on member 95. The lever 101 also carries a link 107 secured by a lost motion connection to a lever 109 pivoted on the frame and having a bifurcated end secured to the hub of member 93. The lever 105 may be provided with a dog 111 adapted to cooperate with a rack 113 on the frame to hold the lever in adjusted position.

Assuming the parts to be as shown in Fig.

1, if the dog is raised and the lever swung to the right to the dotted line position the mold member 95 will be carried to the right to the dotted line position. This movement of the lever will of course swing the link 107 to the left but the lost motion connection of the link permits the member 93 to stay at rest. The parts of the machine are now in position to permit the tire to be placed upon the support of the drum. The lever 101 may then be rocked to the right to the full line position thus returning the member 95. After the arms 83 have acted as described to fold the edges of the paper 6 about the sides of the tire, they are again swung down to the position shown in Fig. 5 and the lever 101 is rocked still farther to the left advancing both of the members 93 and 95 into cooperation with the sides of the tire.

As best seen in Fig. 1 the outer surfaces of the mold members may be provided. with series of spring fingers 115, inwardly directed. This construction allows for expansion and provides a drawing action which tightens the wrapper about the tire and folds over the extreme edges of the paper into close proximityready for sealing.

If desired. the motor 15 may now be startmembers ass described c0111- "111% e of the class 101i ubio moisie;

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the esse on which scribed com- 115 and wrappil tire for the in ed;

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12. A. machine of the class described comprising a support for the tire and wrapping strip, means to fold the edges of the strip over the tire sides, members having a profile corresponding to the sides of the tire and means for closing said members in against the tire, said members and the tire on its support being relatively rotatable.

13. A. machine of the class described, comprising a drum, strip supply means to deliver a strip from the inner side thereof to the surface thereof and means for rotating said drum and also operating said means or for rotating said drum independently.

14;. machine of the class described comprising a supporting drum, strip supply means to deliver a wrapping strip from the inner side thereof to the surface thereof, means for holding the strip folded about an annular article on said support and means for rotating said drum and also operating said means or for rotating said drum independently.

15. A machine of the class described comprising a cylindrical support, a set of positioning members about the same and means for moving said members iii-and out towvard said support, said members in their inner position lying along a circle concentric with said support and being adapted to engage and suspend a tire by its outer circumference in spaced relation to said support whereby wrapping material can be introduced over said support and encircling the inner circumference of the tire.

16. A machine of the class described comprising a cylindrical support, members concentrically positioned about the same and means for moving said members in and out from they center, said members in their inner position lying along a circle concentric with said support and being adapted to engage and suspend a tire by its outer circumference in spaced relation to said support whereby wrapping material can be intro duced over said support and encircling the inner circumference of the tire.

17. A. machine of the class described comprising a cylindrical support, members concentrically positioned about and yieldingly pressed toward the same and means for moving said members outwardly against such yielding pressure, said members in their inner position lying along a circle concentric With said support and being adapted to engage and suspend a tire by its outer circumference in spaced relation to said support whereby wrapping material can be introduced over said support and encircling the inner circumference of the tire.

18. A machine of the class described comprising a drum, paper supply means adj acent sair drum to permit delivery of a strip to the surface of the drum in encircling relation thereto, strip-folding mechanism for folding over the margins of the strip throughout the circumference of the drum and a sealing-strip carrier mounted opposite the drum.

19. A machine of the class described comprising a drum, paper supply means adjacent said drum to permit delivery of a strip to the surface of the drum and strip plaiting mechanism located between the supply means and the drum surface.

20. A machine of the class described comprising a cylindrical drum having a slit corresponding to an element of the cylinder, means within the drum to support a supply of strip and strip plaiting mechanism between the supporting means and the slit.

21. A machine of the class described comprising means for supporting a tire by its outer periphery, means to support a wrapping strip in encircling relation to its inner circumference and means to fold both edges of the strip up over the sides of the tire.

22. A machine of the class described comprising means to support a tire with a wrapping strip encircling 1ts inner circumference and means to fold both edges of the strip u over the sides of the tire.

23. n a machine of the class described, a supporting drum for receiving a paper strip thereabout having a relatively narrow, eX-' pansible, ring-shaped portion 77 for clamping the tire and folding mechanism for lifting the paper from the drum to place it about the clamped tire.

In testimony whereof we have signed our names to this specification.

WILLIAM M. WHEILDON. ED'WARD H. ANGIER.

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