US3865670A - Breaker-tread assembly transfer ring size changing mechanism - Google Patents

Breaker-tread assembly transfer ring size changing mechanism Download PDF

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Publication number
US3865670A
US3865670A US319354A US31935472A US3865670A US 3865670 A US3865670 A US 3865670A US 319354 A US319354 A US 319354A US 31935472 A US31935472 A US 31935472A US 3865670 A US3865670 A US 3865670A
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Prior art keywords
ring
cam
segments
breaker
central axis
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Expired - Lifetime
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US319354A
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English (en)
Inventor
William Charles Habert
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UG Licensing Services Inc
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Uniroyal Inc
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Application filed by Uniroyal Inc filed Critical Uniroyal Inc
Priority to US319354A priority Critical patent/US3865670A/en
Priority to CA172,463A priority patent/CA988016A/en
Priority to AU62835/73A priority patent/AU483616B2/en
Priority to GB5558373A priority patent/GB1456672A/en
Priority to NL7316553A priority patent/NL7316553A/xx
Priority to DE2360879A priority patent/DE2360879A1/de
Priority to IT70633/73A priority patent/IT999946B/it
Priority to FR7345812A priority patent/FR2212232B1/fr
Priority to BE139106A priority patent/BE808908A/xx
Priority to PL1973167655A priority patent/PL93323B1/pl
Priority to SU731981233A priority patent/SU586828A3/ru
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Publication of US3865670A publication Critical patent/US3865670A/en
Assigned to UNIROYAL TIRE COMPANY, INC., WORLD HEADQUARTERS, MIDDLEBURY, CT. 06749, A CORP. OF NJ reassignment UNIROYAL TIRE COMPANY, INC., WORLD HEADQUARTERS, MIDDLEBURY, CT. 06749, A CORP. OF NJ ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNIROYAL, INC., A CORP. OF NJ
Assigned to UNIROYAL GOODRICH TIRE COMPANY THE, A NY. GENERAL PARTNERSHIP reassignment UNIROYAL GOODRICH TIRE COMPANY THE, A NY. GENERAL PARTNERSHIP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNIROYAL TIRE COMPANY, INC., A CORP OF NJ.
Assigned to FIRST NATIONAL BANK OF CHICAGO, THE reassignment FIRST NATIONAL BANK OF CHICAGO, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNIROYAL GOODRICH TIRE COMPANY, THE
Assigned to UGTC, INC., 600 SOUTH MAIN STREET, AKRON, OH 44397-0001, A DE CORP. reassignment UGTC, INC., 600 SOUTH MAIN STREET, AKRON, OH 44397-0001, A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNIROYAL GOODRICH TIRE COMPANY, THE
Assigned to UNIROYAL GOODRICH TIRE COMPANY, THE reassignment UNIROYAL GOODRICH TIRE COMPANY, THE CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 11/01/1990 Assignors: UGTC, INC.
Anticipated expiration legal-status Critical
Assigned to MICHELIN FINANCE (PAYS-BAS) reassignment MICHELIN FINANCE (PAYS-BAS) SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FIRST NATIONAL BANK OF CHICAGO, THE
Assigned to UNIROYAL GOODRICH TIRE COMPANY, THE reassignment UNIROYAL GOODRICH TIRE COMPANY, THE PARTIAL RELEASE Assignors: MICHELIN FINANCE (PAYS-BAS) B.V.
Assigned to UNIROYAL GOODRICH INTELLECTUAL PROPERTY, INC. reassignment UNIROYAL GOODRICH INTELLECTUAL PROPERTY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNIROYAL GOODRICH TIRE COMPANY, THE
Assigned to UNIROYAL GOODRICH LICENSING SERVICES, INC. reassignment UNIROYAL GOODRICH LICENSING SERVICES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNIROYAL GOODRICH INTELLECTUAL PROPERTY, INC.
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D30/2607—Devices for transferring annular tyre components during the building-up stage, e.g. from the first stage to the second stage building drum

Definitions

  • the transfer ring includes front and back support rings rigidly coupled to one another, and a cam ring formed with a plurality of cam races disposed in an annular sequence therein rotatably carried between the front and back rings.
  • a plurality of arcuate segments are slidably positioned between the cam ring and the back ring and are arranged circumferentially about a central axis.
  • Cam followers on the segments engage the cam races of the cam ring, and the segments are constrained to move in a substantially radial direction relative to the central axis in response to the relative rotation of the cam ring with respect to the front and back rings.
  • Two power cylinders are connected between the front ring and the cam ring for rotating the latter relative to the front and back rings, and an adjustable control unit is coupled between the front ring and the cam ring for limiting the rotation of the latter and thereby constraining the radial movement of the segments between selected limits.
  • This invention relates to tire building apparatus and more particularly to a transfer ring for conveying breaker-tread assemblies from a breaker-tread assembly building drum to a tire carcass mounted on a tire shaping drum.
  • a two stage process is conventionally employed.
  • a cylindrical tire carcass is formed, having one or more rubbercovered cord plies anchored to and interconnecting axially spaced, parallel, co-axial bead cores, and a layer of rubber sidewall stock on each sidewall area of the carcass intermediate the eventual crown'area thereof and the two bead areas thereof.
  • a carcass is referred to herein as a first stage carcass.
  • the shape of the first stage carcass is changed from a cylinder to a toroid, and one or more rubber-covered cord breaker plies and a rubber tread slab are added to the crown portion ofthe tire carcass to form what is termed herein a second stage carcass.
  • rubber as used herein is intended to cover natural and synthetic rubbers and rubber-like materials, as well as blends thereof.
  • cord as used herein is intended to cover single or multiple strands, filaments. wires or cables ofnat ural and/or synthetic textile materials such as cotton, rayon, nylon, polyester, glass fiber, and the like, metal and/or such other materials as may be used as reinforcements in pneumatic vehicle tires.
  • the shape of the first stage carcass is changed during the second stage of building from a cylinder to a toroid, and breaker plies and a rubber tread slab are added to the tire carcass to form the aforementioned second stage carcass.
  • Machines of the type presently known in the art for building tires frequently utilize two stations to perform this function.
  • the first station is utilized to fabricate the breakertread assembly by successively winding the various plies of each breaker and the tread slab about a radially expansible and contractible breaker building drum.
  • a radially expansible and contractible and axially movable transfer ring is then utilized to convey the breakertread assembly from the first station to the second station at which is positioned the aforementioned cylindrical carcass, the second station including support and shaping disks and movable, conical, shaping rings engageable with the carcass sidewalls for shaping the first stage carcass into the second stage carcass during inflation thereof.
  • the breaker-tread assembly is transferred from the outer surface of the breaker building drum to the inner surface of the radially expansible and contractible transfer ring, by bringing. the ring, in its radially expanded condition, into a position surrounding the breaker-tread assembly and then radially contracting the ring into engagement with the assembly.
  • the breaker-tread assembly building drum is contracted to allow movement of the transfer ring, with the breaker-tread assembly contained therein, to a suitable position relative to the inflatable first stage carcass.
  • This suitable position to which the transfer ring moves each breaker-tread assembly is a position encircling the eventual crown area of the first stage carcass which is positioned on the aforementioned support and shaping disks.
  • the carcass is then inflated and the crown area thereof expands into pressurized contact with. and adheres to, the inner surface of the breaker-tread assembly in the transfer ring to form the desired second stage carcass.
  • the transfer ring is then radially expanded, releasing the breaker-tread assembly, and moved axially away from the second stage carcass, allowing the carcass to be deflated and removed from the support and shaping disks.
  • the primary object of the present invention is to provide an improved tire building apparatus.
  • Another object of this invention is to provide an improved tire building apparatus for precisely and uniformly conveying a breaker-tread assembly from a building drum in a tire building machine to a tire carcass mounted on a shaping mechanism.
  • Another object of this invention is to provide an improved breaker-tread assembly transfer ring which has greater flexibility than presently known transfer rings so that it may be easily and quickly converted to enable the manufacture of tires of a size different from that of tires previously being manufactured in conjunction therewith.
  • an expansible and contractible transfer ring for conveying a breakertread assembly from the breaker building drum of the tire building machine to a tire carcass mounted on a shaping mechanism.
  • the transfer ring includes a support means, annular cam means mounted on said support means for relative rotation therebetween, a plural ity of arcuate ring segments coupled to said cam means and slidably mounted on said support means in a circular arrangement having a central axis, said segments being constrained to radially inward and outward movements relative to said central axis in response to corresponding relative rotational movements between said cam means and said support means and having respective radially inwardly directed surfaces for engagement with the outer surface of a tread constituting a part of a breaker-tread assembly, drive means interconnected between said support means and said cam means for effecting said relative rotation between said 3 cam means and said support means and adjustable control means coupled between said support means and said cam means for adjustably limiting the extent of said relative rotation and of the
  • FIG. 1 is a partially sectional side elevational view of a tire building machine including a breaker-tread assembly transfer ring embodyingthe present invention
  • FIG. 2 is a front elevational view of the transfer ring taken along the line 22 in FIG. 1;
  • FIG. 3 is an enlarged side elevational view of the transfer ring
  • FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;
  • FIG. 5 is a partially sectioned, exploded, perspective detailed view of a portion of the transfer ring shown in FIG. 4;
  • FIG. 6 is a fragmentary bottom plan view of a portion of the structure shown in FIG. 5, the view being taken in the direction of arrow A;
  • FIG. 7 is an enlarged fragmentary view of the transfer ring shown in FIG. 2 and illustrates details of the adjusting mechanism
  • FIG. 8 is a fragmentary sectional view taken along the line 8-8 in FIG. 7;
  • FIG. 9 is a fragmentary sectional viewtaken along the line 9-9 in FIG. 7.
  • the tire building machine generally comprises a radially expansible and contractible, rotatable building drum, shown generally at 1, upon which breaker-tread assemblies are formed.
  • the breaker ply structure to which the tread is ultimately applied is built up on a magnetized, outer surface 2 of the drum, which drum may be of the type shown in US Pat. No. 3,676,262 to Jean Leblond.
  • the magnetized outer surface of the drum serves to attract the metallic cords of the breaker to drum 1 to aid in holding the breaker properly on the drum.
  • Suitable driving means is provided for rotating the drum via suitable drive belts 4.
  • the machine further includes a transfer ring 5 for transferring or conveying the breaker-tread assembly formed on drum 1 in an axial direction from the drum to a tire carcass shaping mechanism, shown generally at S.
  • the transfer ring 5 is provided with a radially expansible and contractible discontinuous segmental ring 6 (FIG. 2), each segment having an inwardly directed tread engaging surface 7 conforming generally to the contour of the outer surface of the tread in the breakertread assembly formed on building drum 1.
  • the transfer ring 5 is arranged for axial movement along the base of the machine, in one direction from the position shown in FIG. 1 to a position in which it surrounds the building drum 1 in the median plane of symmetry BB of the surface 2, and in the other direction from the FIG.
  • the means for movingthe transfer ring includes a power cylinder 8, the piston rod 8a of which is connected to a sliding block 8b movable in a guide track 9 affixed to the machine base, the sliding block 8b being rigidly connected to and serving as the support for the transfer ring 5.
  • suitable means is-provided on transfer ring 5 .for radially contracting segmental ring 6 into contact with the outer surface of a breaker-tread assembly on building drum 1.
  • the drum is radially contracted to transfer sole control over the breaker-tread assembly to the transfer ring 5.
  • this ring is axially shifted to the right, as viewed in FIG. 1, into vertical alignment with the median equatorial plane, indicated at M-M, ofa first stage carcass (not shown) mounted on end plates or disks l0 and 11 which comprise the carcass supporting portion of the tire carcass shaping mechanism S.
  • the sidewall shaping portions of the tire shaping mechanism S comprising conical shaping rings 25 and 26, are now movedtoward the median equatorial plane of the tire M-M, into contact with the bead portions of the carcass which are sealingly engaged by the disks l0 and 11.
  • the interior of the carcass on the disks 10 and 11 is inflated with fluid under pressure via conduit 24, and the shaping rings 25 and 26 and the disks I0 and 11 are axially moved .closer to plane M-M to cause thefirst stage carcass to expand into contact with both the interior of the breaker-tread assembly, carried in transfer ring 5, and the conical interior surfaces 27 and 28 of the shaping rings 25 and 26 respectively.
  • the conical configuration of the interior surfaces 27 and 28 of the shaping rings confines the expansion of the carcass to a symmetrically centered pattern with respect to the breaker-tread assembly and the beads of the carcass.
  • the shaping rings 25 and 26 are moved axially away from the carcass, the segmental ring 6 of the transfer ring 5 is expanded radially outward to free it from contact with the tread portion of the breaker-tread assembly, the transfer ring 5 is shifted axially out of alignment with the median equatorial plane M-M of the tire to a point clear of the carcass, the carcass is stitched, the pressure in the carcass is relieved, and the disks 10and 11 are moved closer together to break the adhesion of the carcass therewith. Thereafter, the carcass is removed from the machine and the machine is returned to the condition shown in FIG. 1, ready to be recycled for the building of a new breaker-tread assembly and for the application of this new assembly to a new first stage carcass.
  • Transfer ring 5 includes a front ring or member formed with a pair of annular flanges 30a and 30b (FIGS. 4 and 5), one flange being at the outer periphery of member 30 and the other flange being at the inner periphery thereof.
  • a cam ring 31 formed with a plurality of arcuate cam races 32, each extending from the outer periphery to the inner periphery of the cam ring as most clearly seen in FIG. 2, fits into and is guided by the recess formed in member 30 between flanges 30a and 30b.
  • a back ring or member 33 formed with a plurality of projections 34 (FIGS. 4-6) disposed at circumferentially spaced locations thereabout, is maintained in fixed spaced relation to said front ring 30 by screws 35, or other suitable connecting means.
  • the screws 35 extend through aligned holes 36 and 37 formed in front ring 30 and projections 34 respectively, the holes 37 being threaded for engagement by the threads of screws 35.
  • a plurality of tee shaped segments 40 are mounted for reciprocal, radial, sliding movement at circumferentially spaced locations about a central axis between cam ring 31 and back ring 33.
  • Each segment 40 is coupled to cam ring 30 by a cam roll mechanism or cam follower 42 which engages a corresponding one of the races 32.
  • Each cam follower 42 is fastened to its respective segment 40 by a thread shaft 43 and a nut 44.
  • Each segment 40 is maintained in sliding engagement with back ring 33 by means of a pair of guide rods 46, the opposite ends of which rods are fixed to the base 40a and the lip 41 of the segment.
  • each lip 41 is accommodated in a corresponding one of a plurality of guide recesses 47 formed in the back ring 33, between projections 34.
  • a bushing or guide block 48 fixedly carried by back ring 33 in each recess 47 slideably supports and guides the rods 48 interjacent their ends by means of a pair of ball bushing assemblies 49 which are held in place by retainer rings 50.
  • the guide blocks 48 are fixed to the back ring 33 by screws 51.
  • the tee shaped arcuate segments 40 will move in a substantially radial direction with respect to their central axis in response to rotation of cam ring 31 relative to front ring 30 and back ring 33.
  • the plurality of segments 40 thus form the expansible and contractible discontinuous segmental ring 6 which grips the breaker-tread assembly.
  • FIG. 5 it is seen that with cam follower 42 engaging cam race 32, rotation of cam 31 in the clockwise direction, i.e., in the direction of arrow 61, will move segment 40 in a radially inward direction, contracting transfer ring 5.
  • FIGS. 4 and 5 illustrate a segment 40 in various radially extended positions. Segment 40 is shown in its most radially outward position with respect to the central axis, i.e., with transfer ring 5 expanded, in solid lines in FIG. 4, and in its most radially inward position, corresponding to contraction of transfer ring 5, in broken lines in said FIG.
  • FIG. 5 illustrates segment 40 in broken lines at 62, its radially most inward position, which position corresponds to cam follower 42 enga'gingportion 63 of cam race 32.
  • Segment 40 is shown in solid lines at its radially most outward position, which position corresponds to cam follower 42 engaging portion 64 of cam race 32, and it is shown in broken lines at 65, a partially extended position, indicating engagement of cam follower 42 with race 32 at a point between positions 63 and 64.
  • FIG. 6 is a view of the transfer ring taken in the direction of arrow A in FIG. 5. It illustrates the arcuate base 40a of a segment 40 in detail and shows the relative positions thereon of a pair of prongs 66.
  • the prongs which may be of a rigid material such as steel, extend radially inward from base 40a and enable the segment to securely grip a breaker-tread assembly upon contraction of the transfer ring and during conveyance of the assembly from the building drum to the first stage carcass.
  • FIG. 2 there is illustrated a front elevational view of the instant transfer ring 5.
  • Front ring 30 is indicated in solid lines
  • cam ring 31 and cam races 32 are indicated in broken lines
  • back ring 33 is substantially hidden except for a flange which extends downwardly from the bottom of the transfer ring and serves as a means by which the transfer ring is fastened to and supported by the sliding block 8b(FIG. 1).
  • the expansible and contractible ring 6 comprises the above discussed plurality of substantially identical, arcuate, radially movable segments 40, there being 19 such segments shown, for purposes of example only, in the present embodiment.
  • the segments 40 When the segments 40 are joined together as illustrated at broken lines 71 they form a hollow cylinder, the axial cross-sectional profile of the inner surface 7 of which preferably corresponds in shape to the outer surface of the breaker-tread assembly that is to be conveyed. Radial movement of segments 40 is limited by the structure of the transfer ring so far discussed to positions between that indicated at 71 and the expanded position of transfer ring 5 indicated by the interrupted solid line 72 in FIG. 2.
  • FIG. 2 shows that cam ring 31 is rotated relative to front ring 30 by a pair of synchronously operated power cylinders 73 and 74, it being understood of course that any suitable drive means could be used in place of the illustrated cylinders.
  • Cylinders 73 and 74 are pivotally connected by pivots 75 and 76, respectively, to brackets 77 and 78, respectively, which are fixedly attached to front ring 30.
  • Power cylinders 73 and 74 each have pistons, not shown, operatively associated therewith, which pistons are provided with piston rods 79 and 80, respectively, the piston rods extending out of the ends of the power cylinders remote from brackets 77 and 78.
  • Piston rods 79 and 80 are pivotally connected by means of respective adapters90 and 91 to'respective transverse rods 92 and 93 which are affixed to cam ring 31, this being most readily seen in FIGS. 4 and 5.
  • Transverse rods 92 and 93 extend through respective elongated arcuate slots 94 and 95 formed in ring 30 and provide the coupling by which cylinders 73 and 74 may effectively rotate cam ring 31 relative to front ring 30 and back ring 33.
  • cam ring 31 As previously stated with respect to FIGS. 2 and 5, the clockwise rotation of cam ring 31 relative to rings 30 and 33 will urge segments 40 in a radially inward direction causing contraction of transfer ring and enabling it to grip, with the aid of prongs 66, a breakertread assembly. It will be understood of course that' as power cylinders 73 and 74 drive respective transverse rods 92 and 93 from one end to the other or their corresponding slots, thereby rotating cam ring 31, segments 40 will move radially inwardly and outwardly, contracting and expanding transfer ring 5 between the positions indicated at 71 and 72.
  • FIG. 7 illustrates the control unit 100. It includes an elongated lead screw 101, a handle 102 connected thereto and an F-shaped blocking bracket 103 cantilevered on and in threaded engagement with the screw 101 for reciprocal movement therealong. Bracket 103 slidingly engages guide rods 104 and 105 and supports a limit switch 106 which is actuated by contact. A tongue or rod 107 is connected to and extends perpendicularly from cam ring 31 and a threaded bolt 108 extends through a threaded aperture 109 formed therein (FIG. 8).
  • Tongue 107 extends through an arcuate slot 110 formed in front ring 30, tongue 107 beinng in alignment with limit switch 106 and supporting the bolt 108 in alignment with the upper portion of bracket 103.
  • Limit switch 106 extends a distance X to the left of bracket 103, as viewed in FIG. 8, in the direction of tongue 107, and bolt 108 is adjusted to extend slightly less than the distance X" to the right of tongue 107, as viewed in FIG. 8, in the direction of bracket 103.
  • cylinders 73 and 74 cause cam ring 31 to rotate relative to rings and 33 in a clockwise direction as viewed in FIG.
  • Adjustable control means is also designed to provide a means to adjustably limit the radially outward movement of segments 40.
  • the control means 100 includes an arm or flange which is connected perpendicularly to front ring 30 by a mounting bracket 12].
  • a threaded bolt 122 is provided which extends through a threaded aperture 123 formed in arm 120 and serves to limit the travel of cam ring 31.
  • tongue 107(FIG. 8) moves toward bolt 122 until they contact one another. This stops the movement of the cam ring and effectively limits the expansion of transfer ring 5
  • the radially outward stopping position of segments 40 may thus bechanged by adjusting the position of bolt 122 relative to arm 120.
  • an indicia means for example av counter 124 (FIG. 7) of any suitable type, is mounted on a bracket 125 connected to front ring 30.
  • the counter is coupled by a shaft 126 and an adapter 127 to threaded shaft 101 and displays information relative to the rotation of shaft 101. This information, in turn, is indicative of the diameter of the breaker-tread assembly which can be accomodated by transfer ring 5.
  • Appropriate conversion charts maybe provided to correlate the turns of the screw with the position of bracket 103, the various positions of bracket 103 in turn corresponding to the diameters of the breakertread assemblies to be carried by the transfer ring.
  • Suitable known electrical and fluid control circuits may be provided to initiate simultaneous operation of power cylinders 73 and 74 at proper times during operation of the machine shown in FIG. 1 to move the segments 40 from their contracted position to their expanded position and vice versa. Such circuits would also control the operation of power cylinder 8 and would be operatively associated with control circuits of the remaining components of the machine.
  • this invention provides an improved tire building apparatus for transferring or conveying breaker-tread assemblies from a building drum in a tire building machine to tire carcasses mounted on a shaping mechanisin, the improved apparatus comprising .a transfer ring which can be quickly and easily adjusted to accept breaker-tread assemblies of significantly different diameters.
  • An expansible and contractible transfer ring for conveying a breaker-tread assembly from a building drum in a tire building machine to a tire carcass mounted on a tire shaping mechanism spaced apart from said drum, said transfer ring comprising:
  • annular cam means mounted on said support means for relative rotation therebetween;
  • each of said segments being constrained to radially inward and outward movements relative to said central axis in response to corresponding relative rotational movements between said cam means and said support means and having respective radially inwardly directed surfaces for engagement with the outer surface of a tread constituting a part of a breaker-tread assembly;
  • adjustable control means coupled between said support means and said cam means for adjustably limiting the extent of said relative rotation and of the resultant radial movements of said segments.
  • An expansible and contractible transfer ring for conveying a breaker-tread assembly from a building drum in a tire building machine to a tire carcass mounted on a tire shaping mechanism spaced apart from said drum, said transfer ring comprising:
  • annular cam means mounted on said support means for relative rotation therebetween;
  • each of said segments being constrained to radially inward and outward movements relative to said central axis in response to corresponding relative rotational movements between said cam means and said support means and having respective radially inwardly directed surfaces for engagement with the outer surface of a tread constituting a part of a breaker-tread assembly;
  • adjustable control means coupled between said support means and said cam means for adjustably limiting the extent of said relative rotation and of the resultant radial movements of said segments;
  • control means comprising:
  • arresting means movably carried by said support means in alignment with said tongue and adapted to be positioned at aselected point along at least a portion of the length of said arcuate slot; and 5 placement means coupled to said arresting means for positioning said arresting means a selected distance from said tongue.
  • said placement means includes a screw rotatably mounted on said support member and in threaded engagement with said bracket for reciprocatingly moving said bracket in response to rotation of said screw;
  • control means further includes indicia means responsive to the rotation of said screw for indicating the diameter of the breaker-tread assembly for which the transfer ring is set.
  • An expansible and contractible transfer ring according to claim 1 further comprising:
  • cam followers one connected to each of said segments and in sliding engagement with one of said races, for moving said segments in said radial direction in response to said relative rotation.
  • An expansible and contractible transfer ring according to claim 4 further comprising:
  • a power cylinder pivotally coupled to one or the other of said support means and said cam means
  • each of said segments comprises:
  • An expansible and contractible transfer ring for conveying a breaker-tread assembly from a breaker building drum in a tire building machine to a tire carcass mounted on a tire shaping mechanism spaced apart from said drum, said transfer ring comprising:
  • a front ring disposed about a central axis having a pair of annular flanges at theinner and outer peripheries thereof thereby forming a recess between said flanges
  • a back ring maintained in fixed spaced relation with said front ring, said back ring having a plurality of radially extending, circumferentially spaced, guide recesses formed therein;
  • each of said segments including a cam follower in engagement with one of said races for moving said segments in a response to corresponding relative rotational movements between said cam ring and and slideably positioned in said guide recessesfor constraining the movement of said segments to radially inward and outward movement relative to said central axis;
  • adjustable control means coupled between said cam ring and one or the other of said front ring and back ring for adjustably limiting the extent of said relative rotation and of the resultant radial movements of said segments.
  • An expansible and contractible transfer ring for conveying a breaker-tread assembly from a breaker building drum in a tire building machine to a tire carcass mounted on a tire shaping mechanism spaced apart from said drum, said transfer ring comprising:
  • a front ring disposed about a central axis having a pair of annular flanges at the inner and outer peripheries thereof thereby forming a recess between said flanges
  • cam ring supported in said recess for relative rotation between said front ring and said cam ring, the latter having a plurality of arcuate cam races disposed in an annular spaced sequence thereabout,
  • a back ring maintained in fixed spaced relation with said front ring, said back ring having a plurality of radially extending, circumferentially spaced, guide recesses formed therein;
  • each of said segments including a cam follower in engagement with one of said races for moving said segments in response to corresponding relative rotational movements between said cam ring and said front ring and having a radially inward directed surface for engagement with the outer surface of a tread constituting a part of a breaker-tread assemy;
  • a plurality of guide means coupled to said segments and slideably positioned in said guide recesses for constraining the movement of said segments to radially inward and outward movement relative to said central axis;
  • adjustable control means coupled between said cam ring and one or the other of said front ring and back ring for adjustably limiting the extent of said relative rotation and of the resultant radial movements of said segments;
  • control means comprising: i
  • arresting means movably carried by said front ring in alignment with said tongue and adapted to be positioned at a selected point along at least a portion of the length of said arcuate slot;
  • said placement means includes a screw rotatably mounted on said support member-and in threaded engagement with said bracket for reciprocatingly moving said bracket in response to rotation of said screw;
  • control, means further includes indicia means responsive to the rotation of said screw for indic ating the diameter of the breaker-tread assembly for which the transfer ring is set.
  • An expansible and contractible transfer ring according to claim 2 further comprising: i v
  • cam followers one connected to each of said segments and in sliding engagement with one of said races, for moving'said segments in said radial direction in response to said relative rotation.
  • An expansible and contractible transfer ring according to claim 11 further comprising:
  • a plurality of guide means connected to said segments and radially movably positioned in said recesses for constraining the movement of said segments to radial movement relative to said central axis.
  • a power cylinder pivotally coupled to one or the other of said support means and said cam means
  • each of said segments comprises:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
US319354A 1972-12-29 1972-12-29 Breaker-tread assembly transfer ring size changing mechanism Expired - Lifetime US3865670A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US319354A US3865670A (en) 1972-12-29 1972-12-29 Breaker-tread assembly transfer ring size changing mechanism
CA172,463A CA988016A (en) 1972-12-29 1973-05-28 Breaker-tread assembly transfer ring size changing mechanism
AU62835/73A AU483616B2 (en) 1972-12-29 1973-11-23 Breaker-tread assembly transferring size changing mechanism
GB5558373A GB1456672A (en) 1972-12-29 1973-11-30 Tyre building apparatus
NL7316553A NL7316553A (de) 1972-12-29 1973-12-04
DE2360879A DE2360879A1 (de) 1972-12-29 1973-12-06 Uebertragungsring zum ueberfuehren einer guertel-laufflaecheneinheit
IT70633/73A IT999946B (it) 1972-12-29 1973-12-10 Dispositivo variatore delle dimensioni dell anello di trasferta nel le macchine per la costruzione dei pneumatici
FR7345812A FR2212232B1 (de) 1972-12-29 1973-12-20
BE139106A BE808908A (fr) 1972-12-29 1973-12-20 Dispositif de changement de dimension de couronne de transfert d'un ensemble de ceinture et de bande de roulement pour machine de fabrication d'enveloppes de bandage pneumatique de roue
PL1973167655A PL93323B1 (de) 1972-12-29 1973-12-27
SU731981233A SU586828A3 (ru) 1972-12-29 1973-12-28 Устройство дл транспортировани брекерно-протекторных браслетов

Applications Claiming Priority (1)

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US319354A US3865670A (en) 1972-12-29 1972-12-29 Breaker-tread assembly transfer ring size changing mechanism

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US3865670A true US3865670A (en) 1975-02-11

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US (1) US3865670A (de)
BE (1) BE808908A (de)
CA (1) CA988016A (de)
DE (1) DE2360879A1 (de)
FR (1) FR2212232B1 (de)
GB (1) GB1456672A (de)
IT (1) IT999946B (de)
NL (1) NL7316553A (de)
PL (1) PL93323B1 (de)
SU (1) SU586828A3 (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976532A (en) * 1974-12-23 1976-08-24 Tred-X Corporation Tread applying machine
US4007068A (en) * 1974-06-13 1977-02-08 Mitsubishi Jukogyo Kabushiki Kaisha Method for press-bonding molding of breaker layers for radial tires
US4039366A (en) * 1974-10-25 1977-08-02 Bridgestone Tire Company Limited Apparatus for building green tires
US4093495A (en) * 1976-06-28 1978-06-06 Industrie Pirelli S.P.A. Apparatus for removing a tire from a building drum of a tire building machine
US4105486A (en) * 1977-03-30 1978-08-08 Nrm Corporation Tire component transfer
US4105487A (en) * 1975-12-27 1978-08-08 Bridgestone Tire Company Limited Process of and an apparatus for producing green tires
US4128450A (en) * 1977-03-30 1978-12-05 Nrm Corporation Tire component building drum
US4149926A (en) * 1976-04-26 1979-04-17 Victor E. Buehrle Method and apparatus for bonding treads to tires
US4230517A (en) * 1978-03-15 1980-10-28 Nrm Corporation Modular tire building machine
US5441587A (en) * 1994-08-12 1995-08-15 Wyko, Inc. Transfer ring having selective adjustability of shoe movement
DE10252207B3 (de) * 2002-11-09 2004-02-26 Bohmann, Dirk, Dr.-Ing. Formteil als Kern eines Sandwichs
US20040231779A1 (en) * 2003-05-20 2004-11-25 Jean-Claude Girard Method and apparatus for tread belt assembly
US20110126962A1 (en) * 2008-04-18 2011-06-02 Gianni Mancini Process and apparatus for assembling tyres
US20120037318A1 (en) * 2010-08-10 2012-02-16 Bps Engineering, Llc Transfer ring which resists backdriving forces during a tire construction process
EP2425963A1 (de) * 2010-09-01 2012-03-07 Continental Reifen Deutschland GmbH Vorrichtung zum Halten und Transportieren eines Reifengürtels für die Herstellung eines Fahrzeugreifens
US8991804B2 (en) 2011-10-07 2015-03-31 The Goodyear Tire & Rubber Company Method and apparatus for adjusting a tire building machine
CN106904532A (zh) * 2017-04-20 2017-06-30 明阳智慧能源集团股份公司 一种风电齿轮箱无外圈圆柱滚子轴承吊具
CN106946156A (zh) * 2017-04-20 2017-07-14 明阳智慧能源集团股份公司 一种大兆瓦风电齿轮箱无外圈圆柱滚子轴承的装配方法

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CH651814A5 (de) * 1981-06-12 1985-10-15 Maag Zahnraeder & Maschinen Ag Greifer eines hebezeuges.
US5141587A (en) * 1988-07-14 1992-08-25 Bridgestone Corporation Two stage tire building apparatus
CN113427820B (zh) * 2021-07-06 2023-02-28 江西高安建发油脂有限公司 一种双旋多油口的榨油机

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US3078204A (en) * 1959-08-25 1963-02-19 Goodyear Tire & Rubber Method of and apparatus for building tires
US3434897A (en) * 1964-07-24 1969-03-25 Pirelli Method for manufacturing pneumatic tires
US3674603A (en) * 1969-06-30 1972-07-04 Uniroyal Englebert France Expansible and contractible transfer ring
US3676262A (en) * 1967-07-06 1972-07-11 Uniroyal Englebert France Tire building drum having a magnetized surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078204A (en) * 1959-08-25 1963-02-19 Goodyear Tire & Rubber Method of and apparatus for building tires
US3434897A (en) * 1964-07-24 1969-03-25 Pirelli Method for manufacturing pneumatic tires
US3676262A (en) * 1967-07-06 1972-07-11 Uniroyal Englebert France Tire building drum having a magnetized surface
US3674603A (en) * 1969-06-30 1972-07-04 Uniroyal Englebert France Expansible and contractible transfer ring

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007068A (en) * 1974-06-13 1977-02-08 Mitsubishi Jukogyo Kabushiki Kaisha Method for press-bonding molding of breaker layers for radial tires
US4039366A (en) * 1974-10-25 1977-08-02 Bridgestone Tire Company Limited Apparatus for building green tires
US3976532A (en) * 1974-12-23 1976-08-24 Tred-X Corporation Tread applying machine
US4105487A (en) * 1975-12-27 1978-08-08 Bridgestone Tire Company Limited Process of and an apparatus for producing green tires
US4149926A (en) * 1976-04-26 1979-04-17 Victor E. Buehrle Method and apparatus for bonding treads to tires
US4093495A (en) * 1976-06-28 1978-06-06 Industrie Pirelli S.P.A. Apparatus for removing a tire from a building drum of a tire building machine
US4128450A (en) * 1977-03-30 1978-12-05 Nrm Corporation Tire component building drum
JPS53146778A (en) * 1977-03-30 1978-12-20 Nrm Corp Apparatus for transfering tire element
US4105486A (en) * 1977-03-30 1978-08-08 Nrm Corporation Tire component transfer
US4230517A (en) * 1978-03-15 1980-10-28 Nrm Corporation Modular tire building machine
US5441587A (en) * 1994-08-12 1995-08-15 Wyko, Inc. Transfer ring having selective adjustability of shoe movement
US5558733A (en) * 1994-08-12 1996-09-24 Wyco, Inc. Belt and tread transfer method using transfer ring having selective adjustability of shoe movement
DE10252207B3 (de) * 2002-11-09 2004-02-26 Bohmann, Dirk, Dr.-Ing. Formteil als Kern eines Sandwichs
US20050252611A1 (en) * 2003-05-20 2005-11-17 The Goodyear Tire & Rubber Company Apparatus for tread belt assembly
US7384499B2 (en) 2003-05-20 2008-06-10 The Goodyear Tire & Rubber Company Apparatus for tread belt assembly
US20040231779A1 (en) * 2003-05-20 2004-11-25 Jean-Claude Girard Method and apparatus for tread belt assembly
US10065382B2 (en) * 2008-04-18 2018-09-04 Pirelli Tyre S.P.A. Process and apparatus for assembling tyres
US20110126962A1 (en) * 2008-04-18 2011-06-02 Gianni Mancini Process and apparatus for assembling tyres
US8986480B2 (en) * 2008-04-18 2015-03-24 Pirelli Tyre S.P.A. Process and apparatus for assembling tyres
US10377101B2 (en) * 2008-04-18 2019-08-13 Pirelli Tyre S.P.A. Process and apparatus for assembling types
US20150158261A1 (en) * 2008-04-18 2015-06-11 Pirelli Tyre S.P.A. Process and apparatus for assembling tyres
US20150321432A1 (en) * 2008-04-18 2015-11-12 Pirelli Tyre S.P.A Process and apparatus for assembling tyres
US20120037318A1 (en) * 2010-08-10 2012-02-16 Bps Engineering, Llc Transfer ring which resists backdriving forces during a tire construction process
US8505605B2 (en) * 2010-08-10 2013-08-13 Bps Engineering, Llc Transfer ring which resists backdriving forces during a tire construction process
EP2425963A1 (de) * 2010-09-01 2012-03-07 Continental Reifen Deutschland GmbH Vorrichtung zum Halten und Transportieren eines Reifengürtels für die Herstellung eines Fahrzeugreifens
US9662848B2 (en) 2011-10-07 2017-05-30 The Goodyear Tire & Rubber Company Method and apparatus for adjusting a tire building machine
US8991804B2 (en) 2011-10-07 2015-03-31 The Goodyear Tire & Rubber Company Method and apparatus for adjusting a tire building machine
CN106904532A (zh) * 2017-04-20 2017-06-30 明阳智慧能源集团股份公司 一种风电齿轮箱无外圈圆柱滚子轴承吊具
CN106946156A (zh) * 2017-04-20 2017-07-14 明阳智慧能源集团股份公司 一种大兆瓦风电齿轮箱无外圈圆柱滚子轴承的装配方法
CN106946156B (zh) * 2017-04-20 2018-02-13 明阳智慧能源集团股份公司 一种大兆瓦风电齿轮箱无外圈圆柱滚子轴承的装配方法

Also Published As

Publication number Publication date
PL93323B1 (de) 1977-05-30
CA988016A (en) 1976-04-27
IT999946B (it) 1976-03-10
FR2212232B1 (de) 1976-11-19
BE808908A (fr) 1974-06-20
FR2212232A1 (de) 1974-07-26
DE2360879A1 (de) 1974-07-04
AU6283573A (en) 1975-05-29
GB1456672A (en) 1976-11-24
SU586828A3 (ru) 1977-12-30
NL7316553A (de) 1974-07-02

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