EP1954479A2 - Procede et appareil de formage sous vide d'un pneumatique elastomere - Google Patents

Procede et appareil de formage sous vide d'un pneumatique elastomere

Info

Publication number
EP1954479A2
EP1954479A2 EP05857805A EP05857805A EP1954479A2 EP 1954479 A2 EP1954479 A2 EP 1954479A2 EP 05857805 A EP05857805 A EP 05857805A EP 05857805 A EP05857805 A EP 05857805A EP 1954479 A2 EP1954479 A2 EP 1954479A2
Authority
EP
European Patent Office
Prior art keywords
mold
canister
cover
core
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05857805A
Other languages
German (de)
English (en)
Inventor
Richard A. Steinke
Theodore M. Love
James G. Moore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Love Theodore M
MOORE, JAMES G.
STEINKE, RICHARD A.
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1954479A2 publication Critical patent/EP1954479A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • 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)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0661—Rigid cores therefor, e.g. annular or substantially toroidal cores

Definitions

  • This invention pertains to methods and apparatus for vacuum forming an elastomeric transport tire containing a core of belts, plies and beads.
  • the present invention is in a new and unique vacuum forming apparatus for use in an automated method for forming a transport tire from an elastomeric material that includes a core of optimally positioned belts, plies and beads, to provide a balanced transport tire.
  • U.S. Patent No.4,573,394 sets out a tire mold having a cavity that is for receiving and finally shaping the tire.
  • the patent is defined by a surface that is for contacting the exterior of the tire during tire curing .
  • the cavity is fluid connected to a single vacuum source for evacuating air from within the cavity during an early portion of a tire curing cycle to prevent air and any other iluid from becoming trapped between the tire and the surface that defines the cavity that will become the tire
  • the present invention provides for both an
  • a core of plies, belts and beads for use in the vacuum forming apparatus of the invention is set out in a U.S. Patent Application for a "Tire Core Package for Use in Manufacturing a Tire With Belts, Plies and Beads and Process of Tire Manufacture" Serial No. 10/143,678, filed 05/13/2002,
  • the present invention is a new approach to forming a transport tire from an elastomeric
  • Patent Applications of two of the inventors entitled, "Method and Apparatus for Forming a Core of Plies, Belts and Beads and For Positioning the Core in a Mold For Forming an Elastomeric Tire
  • Another object of the present invention is to provide a vacuum apparatus for forming an elastomeric tire with a core of plies, belts and beads is encapsulated therein in a single operation, where air is removed from the elastomeric material mixture prior to its passage into the mold and the elastomeric material is pulled, under vacuum, through the mold, filling essentially all the voids
  • Another object of the present invention is to provide a vacuum casting apparatus that includes
  • a canister that is initially placed under a deep vacuum as it receives a volume of mixed elastomer
  • Another object of the present invention is to provide a mold with a cavity as a component
  • a top end to receive a mix of elastomeric material constituents and is subj ected to a deep vacuum that
  • Another object of the present invention is to provide for connection of the reservoir canister
  • elastomeric material mix is pulled into the mold cavity, traveling through and across, to fully encapsulate, the tire core, forming a homogenous tire.
  • Another object of the present invention is to provide a vacuum forming apparatus where a
  • Still another object of the present invention is to provide a vacuum forming apparatus for
  • the elastomeric material mixture before its passage into a mold wherethrough the material is pulled, under a low level vacuum, to completely permeate througn ana arouna a core oi piics, oelts and beads and spacers maintained in the mold cavity, forming, in a single molding operation, a tire that
  • Still another object of the present invention is to provide, a mandrel whereon a core of plies,
  • canister to receive a mixture of elastomeric material constituents for connection to a vacuum source
  • the air-free mixture then passed through a valve into the mold cavity that is connected to a low level
  • Still another object of the present invention is to provide for seals for maintaining canister
  • Still another object of the present invention is to provide a vacuum forming apparatus for casting a transport tire containing a core of plies, belts and beads in a single operation, producing a
  • the present invention is in a vacuum forming apparatus that receives a mold arranged
  • a mold canister which outer mold is easily opened to allow for removal of a tire formed therein.
  • vacuums that are preferably generated by separate vacuum sources.
  • the canister Upon receipt of a set volume of the elastomeric material mix the canister is sealed and is
  • the vacuum is pulled through a port in the cannister, and is operated
  • the canister is opened through a needle valve and is open to outside air
  • the needle valve is required to be closed before the canister is empty and comes under ambient air conditions as are present in the canister. After cooling, the mold is broken open and a completed transport tire
  • a transport tire includes : passing a volume of mixed elastomeric material constituents into
  • a mold canister that is preferably, but may not necessarily be, centered in the mold that includes inner
  • the inner mold to function as, or includes a mandrel portion, whereon a core of plie, belts
  • the invention may take physical form in certain parts and arrangement of parts, used to form
  • Fig. 1 shows an exploded perspective view taken from above a bottom hub plate whereto a
  • cylindrical hub manifold is being fitted with studs turned into the bottom hub plate, forming an inner
  • Fig. 2A shows the inner mold components of Fig. 1 receiving a pair of hard foam core
  • Fig. 2B shows all but a pair of the hard foam core segments assembled to the bottom hub as a mandrel for receiving a core of plies, belts and beads for a transport tire core laid-up thereon;
  • Fig. 3 A shows the completion of the hard foam core segments assembly and with a top hub
  • Fig. 3B shows the top hub plate being bolted onto the top of the cylindrical hub manifold
  • Fig.4A shows the hard core assembly of Fig. 3B as having been mounted onto an axle that is fitted to a pivoting arm, with the hard core assembly shown rotated ninety degrees, showing an
  • Fig.4B shows a top plan sectional view taken along the line 4B- 4B of Fig.4A looking down on the hard foam core assembly with the expander cone large diameter end slid along the expander cone to the center of the hard core assembly, showing the plies sleeve aligned for fitting over the
  • Fig. AC is a view like that of Fig.4B except that the plies sleeve end has been drawn over and
  • Fig. 5A is a view like that of Fig. 4C only showing a pair of bladder and hard plate
  • Fig. 5B is a view like that of Fig. 5 A only showing the left bladder and hard plate assembly
  • Fig. 5C is a view like that of Fig. 5B that additionally shows the right bladder and hard plate fitted into the plies cords sleeve end and showing a bead maintained by the hard plate edge against
  • Fig. 5D is a view like that of Fig. 5C only showing a press plate engaging the expanded left
  • Fig. 5E is a view like that of Fig. 5D only showing the press plate as having been urged
  • Fig. 5F is a view like that of Fig. 5E only showing the press plate as having been moved to
  • Fig. 6A shows a top plan view like that of Fig. 4B except that the expander cone is shown fitted over the hard core assembly whereon the plies and beads have been assembled, and a separator, that is a layer of cotton batting, as having been applied therearound, and showing a first belt sleeve
  • Fig. 6B shows the hard core assembly with the plies ends extending up the hard core
  • Fig. 7A shows a view like that of Fig. 6B only showing a layer of cotton batting wound
  • Fig. 7B shows a view like that of Fig. 7A and additionally illustrates, with a spool, that a continuous cord is being rolled off the spool, and is wound around the crown that has been covered by a separator layer of cotton batting;
  • Fig. 7C shows a view like that of Fig. 7B only with the wound tire cord shown as covering the crown;
  • Fig. 8A shows the hard core assembly, with the tire core wound thereon, removed from the axle and positioned onto a mold base;
  • Fig. 8B shows one of a number of tread segments that are fitted together to form the exterior or outer mold
  • Fig. 8C shows the tread segments of Fig. 8B assembled into the mold outer wall
  • Fig. 8D shows a top plate installed onto the assembly of Fig. 8C showing a center opening
  • Fig. 8E shows a view like that of Fig. 8D only showing a dome shaped cover mounting a head end of center cylindrical canister fitted onto the outer mold cover with the center cylindrical canister fitted into, and extending upwardly from, a center opening, and showing first and second vacuum ports fitted, respectively, into the side of the center cylindrical canister and the top of the dome shaped cover;
  • Fig.9 A shows a sectional view taken along the line 9 A - 9A of Fig.8E with the dome shaped cover lifted off of the outer mold top, with arrows B illustrating the dome cover as being lowered onto the outer mold top that contains the core of belts, plies and beads laid up on an inner mold mandrel portion, showing, with arrow C, movement of a pouring head into an opening through the top of a deep vacuum canister, and showing with arrow D movement of a needle valve into a bottom end throat of the deep vacuum cylindrical canister;
  • Fig. 9B is a view like that of Fig.9A only showing the dome shaped cover as having closed over the outer mold top, with a pour of an elastomeric material, arrow E, passed through the pouring head into the deep vacuum canister and showing, with arrow F, a high level vacuum being pulled through a canister port, with that pulled air, shown as arrows G, passing out of the elastomeric material pour, and shows a low level vacuum, shown as arrow H, being pulled through a cover port, pulling air, shown as arrows I, from within the mold cavity and area under the cover;
  • Fig. 9C is a view like that of Fig. 9B, only showing the pouring head closed, with the elastomeric material sans air contained in the deep vacuum canister and with the canister port shown as open, admitting ambient air, arrow K, into the canister, and showing the needle valve at the bottom of the canister as just opening, passing a flow of the elastomeric material therefrom, pushing
  • Fig.9D is a view like that of Fig.9C only showing most of the elastomeric material as having
  • Fig. 10 shows a side elevation exploded sectional view of a section of a tire manufactured
  • Fig. 11 shows an assembled view of the tire of Fig. 10.
  • Fig. 12 shows a block flow schematic of the steps practiced to form a tire of Figs. 10 and 11
  • the invention is in a process and apparatus for forming a transport tire with vacuum forming apparatus 90 of the invention, wherein a core of belts, plies and beads is optimumally positioned,
  • the vacuum forming apparatus 90 like
  • the Prior Art section of the present application provides for forming, in a single operation, an essentially perfectly balanced transport tire containing plies, belts and beads, with the tire then pulled from the mold.
  • Figs. 8E and 9A through 9D 3 employs a mold containing a mandrel
  • tread segments 45a and 45b into a cylinder, as shown in Figs. 2 A and 2B, to have the shape of a
  • an inner mold hub base 31 a as shown in Fig. 1 , is used.
  • the inner mold base 31 a is shown as having a center dish 32 with a center opening 33 that includes spaced elliptical
  • post includes a threaded nut 37 that is secured onto each post end 36a. Outwardly from the posts 36,
  • the hub base 31a is stepped upwardly into a Hp 38 and, outwardly from the Hp 38, it is stepped downwardly into a flat portion 39 that extends to the plate edge.
  • a cylindrical hub 40 is fitted onto the mold hub base 31a. Which cylindrical hub has a center opening 42 therethrough, has its lower end aligned to fit onto the center dish area 32, and is positioned thereon to align spaced elliptical ports 41 with the spaced elliptical ports 34 of the hub base.
  • the cylindrical hub 40 is maintained in position by fitting a rod 43 through a side longitudinal hole 44 and turning a rod threaded end 43a into a threaded hole 44a that is formed into a side of the hub base 31a.
  • Fig.2 A shows the hub 40 fitted onto the inner mold hub base 31a and is maintained thereon by the rod 43 threaded end 43a turned into the hub base threaded hole 44a, as shown in Fig. 1.
  • Fig. 2 A shows mounting holes of the hard foam core top and bottom sections 45 and 45b, respectively, that form the mandrel, with each hard form core section receiving one of the posts 36 fitted therethrough.
  • Fig.2B all but one pair of hard foam core top and bottom sections 45a,and 45b have been fitted onto posts 36, and nuts 37 are shown as having been turned onto the post threaded ends 36a.
  • Fig.3 A shows the top of the hub 40 with the hard foam core top and bottom sections 45 a and 45b assembled thereon, forming the mandrel, that is aligned with a hub top 31b with, it should be understood, the hub base and top, 31a and 3 Ib, respectively, being a mirror image of one another.
  • Fig. 3B shows the hub top 31b fitted onto the top of hub 40, with spaced elliptical ports 41 formed through the hub top 3 Ib that includes elliptical ports 47 that align with the elliptical ports 41 in hub 40 and the elliptical ports 34 in the hub base 31a, proving flow paths through the assembly, and showing bolts 47 each aligned for turning through the hub top 3 Ib and into a nut 37. With each nut 37 shown as having been turned onto a threaded end 36a of each post 36, completing the assembly of the inner mold 30, where the assembled hard foam core sections function as a mandrel for
  • axle 48 mounted through the aligned center openings 33 in the hub base and top 31 a and 31 b, as
  • pivot post 49 preferably includes a pivoting joint 50 that allows the inner mold 30 to be
  • a layer of spacing material 52 is wrapped around the inner mold 30 crown, that is preferably at least a two ply or layers of cotton batting.
  • An expander cone 53 that is shown as a truncated cone having a greater diameter forward end 53a and a lesser diameter rear end 53b, is fitted onto, to slide along axle 48.
  • the expander cone 53 is to receive a sleeve 54 that is sleeve woven from plies cord that, for a
  • Fig.4B shows the expander cone 53 as having had its forward end 53a moved over the edge
  • which expander cone, to allow such movement includes spaced parallel forward and rear inner walls 55a and 55b, respectively, that each have a center hole 56a and 56b therethrough that align to
  • axle 48 supports and guides the expander cone 53 as it is slid back and forth
  • Fig.4C shows the components of Fig.4B except that the forward portion of the plies sleeve
  • Fig. 5 A shows the view of Fig.4C, except that a pair of bladder and hard plate 60 have been
  • Each bladder and hard plate 60 includes a flexible bladder 62
  • hard plate 61 which hard plate is a hard metal or plastic and is for centering a bead to a side of the core in the core formation process.
  • the hard plate 61 is mounted onto a side of a balloon type bladder 62 that is to be filled with air under pressure through a valve stem 63. Beads 59 are shown
  • the sleeve 54 is shown as having been passed thereover.
  • Fig. 5B is a view like that of Fig. 5 A only showing the left side bladder and hard plate 60 as
  • Fig. 5C is a view like that of Fig. 5B only showing both of the bladder and hard plates 60 as
  • Fig. 5D is a view like that of Fig. 5C only showing the plies sleeve ends as having been cut
  • the plies sleeve 54 can be of lesser length to avoid having to cut
  • the plies sleeve ends 54a and 54b are off the sleeve ends and, also within the scope of this disclosure, the plies sleeve ends 54a and 54b
  • Fig. 5E shows the pressure plate 64 as having advanced into the bladder 63, as air is being withdrawn from the bladder, as illustrated by an outwardly pointing arrow, and shows the bladder as tending to fold around the shoulder of the inner mold 30. Which bladder folding tends to urge the
  • Fig. 5F is a view like that of Fig. 5E only showing the bladder 62 as having been further
  • bladder and hard plate 60 is identical, and which bladders and hard plates 60 can operate
  • plies ends can be folded across the mandrel crown, crossing one another,
  • Fig. 6A Shown in Fig. 6A the core of plies and belts of Figs.5 A through 5F has received a separator layer or layers 67 that are preferably sections of cotton batting installed around the inner mold 30 mandrel crown. Thereafter, a belt expander 68, that is like and functions like, and in practice may
  • a first belt 69 So arranged, as shown in Fig. 6A, a first belt 69
  • a second belt 69a can be passed over the belt expander 68 lesser diameter end and
  • the first belt 69 is fitted across the inner mold 30 crown,
  • a preferred spacing material is a four layer
  • a tire cord 72 that is shown in Fig. 7B being wound off of a spool illustrating a continuous
  • cord is applied by winding a strand of tire cord around the belt circumference, with the winding
  • a layer of a separator 70 that is a gauze material
  • the second belt 69a is installed over the separator 70. Should additional belts be required, each belt is separated from the belts below and above by a
  • a final separator layer 71 is applied over
  • a tire wrap 72 consisting of a winding of tire cord, that is preferably a Kevlar cord, is
  • the core 75 shown in Figs. 8A, 8C and 10, is turned and is moved onto an outer mold base 85, shown in Fig. 8C, that receives tread segments 86 or a ring having a tread formed around the
  • tread segments are individually numbered and are fitted
  • tread segments 86 for practicing the invention
  • seals 86a shown in Figs. 9A through 9D, fitted between the adjacent tread segments 86 and
  • tread segment seals 86a are provided for blocking a flow under vacuum of the
  • a seal 96 is fitted between an edge of a center hole 88a formed through
  • the core 75 is positioned.
  • the outer mold base 85 apparatus bottom plate 87 supports a combination bead alignment and needle valve positioning plate 92b, and has an outer grooved e ⁇ ge yJD tnat, ii ⁇ e rne rop bead alignment plate outer grooved edge 93a, supports the bead 59, and further includes a center opening 96a wherethrough a neck mid-portion 101 of a needle valve 100 travels up and down in operation
  • a plug 110 is provided that is fitted
  • the outer surface of the cylindrical canister 95 funnel area 107 and has a longitudinal center opening
  • a seal 112 is provides between the nozzle end 108 and plug hole 111 to prohibit a flow of elastomeric material up the
  • cylindrical canister 95 during vacuum forming operations.
  • the nozzle end 108 of the cylindrical canister 95 includes seal 112 and functions as a seat for the needle valve 100 head end 103 that is shown as having a cone shape, with the cone point to travel into the cylindrical canister 95 nozzle end until the slope of the head end 103 contacts the edge of the nozzle end 108, sealing off flow. Which head end 103 travel is provided when the needle
  • valve body 101 is moved up and down by lifting or lowering the valve body lower end 102.
  • nozzle end 108 can provide for needle valve movement, opening and closing the cylindrical canister to a flow of elastomeric materials out from the nozzle end 108, as set out herein below.
  • the cylindrical canister 95 is to receive a mixture of elastomeric constituents that, after
  • FIG.9B which pouring head 116 has a funnel shaped pouring end that is an inwardly sloping cone section that connects to a cylindrical nozzle end 117. Shown
  • the cylindrical housing top end 95b is ported to open through a pouring seat 118 that has
  • the cover 90 is lowered,
  • pouring head 116 is lowered into the pouring seat 118 as illustrated by arrow C, and the needle valve is moved upwardly, as illustrated at arrow D, to close the nozzle end 108. Thereafter, as shown in Fig. 9B, a measured amount of an elastomeric mix of constituents 126 is poured into
  • cylindrical canister 95 through the pouring seat 118, with an operator observing the canister filling through a sight glass 122 mounted in the surface 95a of the cylindrical canister.
  • a deep vacuum source Prior to which pouring, a deep vacuum source is connected to cylindrical canister port 125 that is fitted into
  • forming apparatus 90 to receive a flow of elastomeric material into the cylindrical canister 95, as illustrated in Fig. 9B.
  • Which elastomeric material is a mixture of constituents that are combined
  • the preferred constituents are a
  • FIG. 9B is a view like Fig. 9a and additionally shows the pouring head 116 as having been seated in the pouring seat 118 with aurethane pour 126, as shown by arrow E, being poured through
  • cylindrical canister 95 port 125 pulling air out of the elastomeric materials mixture that was
  • a low level vacuum shown as arrow H, is pulled
  • Fig.9C is a view like that of Fig. 9B and additionally shows a desired volume of elastomeric material mix as having been poured into the cylindrical canister 95. Whereafter, the high level vacuum is removed from the canister port 125 that is opened to atmosphere, illustrated by arrow J,
  • bottom bead alignment plate 92b to flow into the annular moid cavity and through the core 75 of
  • Fig. 9D is a view like that of Fig.9C and additionally shows the elastomeric materials pour as having passed through the needle valve 100 and is distributed throughout the mold cavity that is the annular area between the inner and outer molds that contains the core 75 of plies, belts and beads,
  • valve head end 103 which elastomeric material is shown as having filled the cavity and is just
  • the cylindrical canister 95 port remains open, shown as arrow J, to ambient air during which elastomeric material flow through the cavity between the inner and outer molds as air is exhausted from beneath the cover 89 through the port 97.
  • the cover 89 is lifted off of the outer mold top 88 and the outer mold is broken apart to remove the finished tire therefrom.
  • Which finished tire is like the tire 130 shown in Fig. 11 that includes the core 75 of Fig. 10.
  • Fig. 12 shows a block flow schematic of a summary of the steps performed in forming an elastomeric tire utilizing the vacuum forming apparatus 90 as described above.
  • Blocks 201 and 202
  • a dome shaped cover is fitted over the outer mold top surface, engaging seals
  • the pouring head has
  • a canister port pulling air out from the canister, as illustrated by block 205, and a low level vacuum of at least eighty five (85) per cent, and not greater than ninety five (95) per cent, is pulled through a port through the cover, pulling air out from beneath the cover and the mold, as illustrate by block 206.
  • a low level vacuum of at least eighty five (85) per cent, and not greater than ninety five (95) per cent, is pulled through a port through the cover, pulling air out from beneath the cover and the mold, as illustrate by block 206.
  • an elastomeric material that has been recently mixed from constituents is poured through the canister top, as illustrated by block 207, with the high level
  • the needle valve is opened, as illustrated by block 209, and the elastomeric material is

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Tyre Moulding (AREA)

Abstract

L'invention concerne un appareil de formage sous vide et un procédé d'utilisation dudit appareil dans le formage d'un pneumatique de transport à partir d'un élastomère, lequel appareil comprend un moule présentant une cavité ou une zone annulaire, une âme de plis, ceintures et talons de pneumatique de transport étant disposée sur un mandrin situé à l'intérieur du moule. Ce moule reçoit un couvercle ajusté de manière étanche sur la partie supérieure du moule et un récipient métallique cylindrique est inséré à travers le centre du couvercle et le centre du moule, ouvert à une extrémité supérieure pour recevoir une coulée d'un mélange élastomère et pourvu, à son extrémité inférieure, d'une soupape à pointeau qui s'ouvre dans une extrémité de la zone annulaire du moule. Le récipient métallique cylindrique présente un orifice de raccordement à une source à vide fort et le couvercle présente un orifice de raccordement à une source à vide faible, le vide fort servant à éliminer l'air du mélange élastomère à mesure qu'il est versé dans le récipient métallique. Après le remplissage, l'orifice est ouvert à l'atmosphère et la soupape à pointeau est ouverte afin de libérer le mélange dans la chambre annulaire du moule dans laquelle ce mélange est aspiré par le vide faible à travers l'orifice du couvercle, afin de remplir la cavité annulaire du moule et d'imprégner complètement le noyau maintenu à l'intérieur.
EP05857805A 2005-11-23 2005-11-23 Procede et appareil de formage sous vide d'un pneumatique elastomere Withdrawn EP1954479A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/026911 WO2007061399A2 (fr) 2005-11-23 2005-11-23 Procede et appareil de formage sous vide d'un pneumatique elastomere

Publications (1)

Publication Number Publication Date
EP1954479A2 true EP1954479A2 (fr) 2008-08-13

Family

ID=38066743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05857805A Withdrawn EP1954479A2 (fr) 2005-11-23 2005-11-23 Procede et appareil de formage sous vide d'un pneumatique elastomere

Country Status (5)

Country Link
EP (1) EP1954479A2 (fr)
JP (1) JP2009516609A (fr)
CN (1) CN101287590A (fr)
CA (1) CA2554804A1 (fr)
WO (1) WO2007061399A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112022003382A2 (pt) * 2019-09-03 2022-05-17 Andrew Mcghee James Válvula de segurança, conjunto e veículo

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL302462A (fr) * 1962-02-15
JPS533422B2 (fr) * 1973-08-07 1978-02-06
JPS55150340A (en) * 1979-05-12 1980-11-22 Ohtsu Tire & Rubber Co Ltd Flexible hollow core for manufacturing casting tire
US4287930A (en) * 1980-04-11 1981-09-08 The Goodyear Tire & Rubber Company Tire and method of reinforcement
US4272309A (en) * 1980-05-01 1981-06-09 The Goodyear Tire & Rubber Company Process for molding reinforced articles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007061399A3 *

Also Published As

Publication number Publication date
JP2009516609A (ja) 2009-04-23
WO2007061399A2 (fr) 2007-05-31
WO2007061399A3 (fr) 2008-04-24
CN101287590A (zh) 2008-10-15
CA2554804A1 (fr) 2007-05-23

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