EP0100335A1 - Pneus a ceinture ou a carcasse radiale, appareil et procede de fabrication des memes - Google Patents

Pneus a ceinture ou a carcasse radiale, appareil et procede de fabrication des memes

Info

Publication number
EP0100335A1
EP0100335A1 EP83900557A EP83900557A EP0100335A1 EP 0100335 A1 EP0100335 A1 EP 0100335A1 EP 83900557 A EP83900557 A EP 83900557A EP 83900557 A EP83900557 A EP 83900557A EP 0100335 A1 EP0100335 A1 EP 0100335A1
Authority
EP
European Patent Office
Prior art keywords
carcass
thread
cord
retaining rings
loops
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Withdrawn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
EP83900557A
Other languages
German (de)
English (en)
Inventor
Jonny Janus
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.)
JANUS GmbH
Original Assignee
JANUS GmbH
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
Priority claimed from DE19823204676 external-priority patent/DE3204676A1/de
Application filed by JANUS GmbH filed Critical JANUS GmbH
Publication of EP0100335A1 publication Critical patent/EP0100335A1/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Withdrawn legal-status Critical Current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
    • B29D30/34—Building tyres by jointly covering two bead-rings, located parallel to each other at a distance apart, with fabric or cord layers

Definitions

  • the invention relates to a belt or radial tire according to the preamble of claim 1 and further relates to a method and an apparatus for producing such
  • Belted or radial tires usually have a carcass reinforcement with transversely to the running direction, spatially curved rubber tracks with inserted cord reinforcements.
  • a carcass reinforcement is difficult to machine because of the complicated geometry of the predominantly multi-layer rubber-band sections and the thread guidance, which is essentially parallel to the tire circumference and increasingly spread towards the tire flanks, and requires a great deal of manual production effort. This results in a variety of loads, which primarily affect the uniformity of manufacture, the concentricity of the finished tire, the large wall thickness, which has an unfavorable effect on flexibility (flexibility), as well as the production costs and the tire weight.
  • a further disadvantage of this known method is that the thread loops wound around the annular hollow body have a smaller mutual distance on the inner circumference of the hollow body than on the outer circumference. This is important insofar as the inner loop sections have to be brought to the same mutual distance as the outer loop sections during the pressing in and subsequent protuberances to the outer circumference of the hollow body, but this is practically impossible is. In any case, it is practically impossible to spread the adjacent sections of the thread loops evenly outwards, which is indispensable for the correct and uniform manufacture of such tire carcasses. In addition, the outer sections of the thread loops and close the inner sections which are curved from the inside outward press the correspondingly compressed tubular hollow body between them.
  • firstly outer strands are wrapped with a band-shaped reinforcing insert, the oblique threads of which cross in the layers lying on both sides of the bead strands.
  • a subsequent, uniform, bulging out onto the full carcass cross-section is extremely difficult.
  • the two bead strands do not form a bead core in the sense of a tire bead, but only represent production aids for the attachment of additional fabric bands with the actual bead cores or retaining rings.
  • the invention has for its object to belt or radial tire according to the preamble of claim 1 in particular visually to improve the structure, their rolling behavior (rolling resistance) and the uniformity of the carcass body and to simplify the manufacturing process so that a largely mechanical production of the carcass body becomes possible.
  • the components of the carcass body which act in a positive and negative relation to one another are to be prefabricated so precisely and uniformly by machine that after they have been put together, a very substantial improvement in the existing criteria in the manufacture of belted or radial tires with one piece Carcass body is machined from pre-made components.
  • This object is achieved according to the invention in wesent union by the characterizing part of claim 1, while in the claims 2 to 15 particularly advantageous manufacturing process and in the claims 16 to 20 devices for performing these methods are characterized.
  • the invention results in an extremely simple and smooth tire construction with the possibility of producing the defined construction of the reinforcement (carcass) exactly as specified. While the relatively high rolling resistance of conventional tires is essentially due to the fact that the internal motive forces are very large due to the relative thickness and the structural design of the tires, the carcass structure according to the invention, on the other hand, can be kept much thinner on all sides since thickenings or reinforcements only on those Places must be provided where they are really needed, for example on the tread or on the side of the tire as abrasion protection. As a result, in the carcass shape according to the invention, the internal motive forces which arise as a result of running on the roadway or due to deflection in the form of flexing can be kept considerably lower.
  • the method according to the invention leads to a fully mechanical production of the carcass body suitable for any type of belt or radial tire, the method according to the invention, with an extremely material and cost-saving construction of the carcass body, making even better use of the tensile strength used cord or steel threads is reached.
  • the static or dynamic performance of the reinforcement is limited solely by the permissible tensile stress of the threads used and no longer, for example, by the transshipment surfaces of the rubberized fabric webs used today in tire construction which are subject to shearing.
  • the very precise manufacturing method according to the invention also makes it possible to avoid kr consuming flexing work to reduce the rolling resistance of the tire body so significantly that it results in sustainable economic advantages for vehicle operation through fuel savings, increased service life, but also benefits for driving behavior.
  • the manufacturing method according to the invention also results in a particularly light, uniformly shaped, high-strength carcass body which, thanks to the toroidal cross-section similar to the conventional belt or radial tires, readily and without any restriction for further processing to the existing heating and vulcanizing units ⁇ directions is suitable.
  • the practically endless cord or steel wire thread used as a reinforcing insert which can have a thickness of a few tenths of a millimeter "to one millimeter or more, is formed from the flanks to the toroidal zenith forming the tread area arched carcass body in numerous, each arranged in the same plane next to each other arranged loops ..
  • the thread guide of the thread thus guided around the two retaining rings or bead cores can be specified geometrically differently depending on the task, the beginning and the end of the one-piece , continuous thread can be attached to one of the retaining rings after completion of each carcass blank.
  • a device for carrying out the manufacturing method according to the invention with an annular aligning device enclosing the carcass body to be manufactured from the outside is characterized in claim 16, while the modified embodiment claimed in claim 17 is designed with devices which body the carcass to be manufactured bulge from the inside between the two retaining rings.
  • the molded body used as an alignment body on these devices which is designed as an essentially toroidal or wheel-shaped, thin-walled rubber hollow body which is open on the inside and has a cross section corresponding to the carcass cross section, can in known process engineering in each case in appropriately designed, heatable internal and external shapes getting produced.
  • the lexible hollow body used as the molded body is the transverse seat or guide grooves on its outer surface, which correspond exactly to the mathematically and constructively determined loop course of the continuous cord or steel wire thread on the carcass body.
  • the groove structure serves to hold and thus fix the thread loops from one of the two holding
  • the groove structure acts like an assembly gauge, the thread loops forming the first component covering the rubber hollow body forming the second component of the carcass body in an ideal uniformity like a net.
  • the carcass parts which are inserted into one another form a self-contained construction unit due to the arrangement of the thread loops which is immovable on the cash register body.
  • a preliminary gluing of the two components is not absolutely necessary, since in the course of the vulcanization which takes place later under high pressure, a monolithic or one-piece solid connection is produced anyway.
  • a particular advantage of the flexible hollow body forming the second component is the insertion of longitudinal reinforcement threads in the running direction of the radial belt tire to be produced. In this way, the larger distances on the carcass circumference caused by the radial spreading of the thread loops are reduced and the penetrability of the carcass is reduced, without this resulting in a stiffening of the carcass flanks, as is the case with conventional tire carcasses due to various radial internals or even double-layered rubber fabric webs in the flank area.
  • the threads of the .loops can be guided between the bead cores on the same level. From the flank area to the zenith, they are next to each other and not crosswise.
  • the threads of the loops are not covered with rubber or the like.
  • the slings are aligned in two steps:
  • the invention improves the following criteria over the known tire constructions and manufacturing processes:
  • the threads of the individual loops of the reinforcing body can neither become longer or shorter during the further processing, nor can their basic order - side by side - be changed.
  • the entire reinforcing body is not only aligned uniformly, but the material used is also evenly distributed.
  • the tensile forces acting on the loop threads of the strength body occur equally everywhere. There are no unequal tensile forces which lead to torques in the area of the bead cores or which only strain part of the loop thread layer used in the construction.
  • the even distribution of the material also applies to the flexible rubber mold used for assembly, since the semicircular open design makes it possible to manufacture this component with great accuracy in a mold with an inner and an outer part.
  • the rolling resistance of a tire is determined in a significant way the fuel consumption of the vehicle, and since each vehicle has four wheels / so including four tires, multi plied ⁇ the rolling behavior of a tire accordingly.
  • the rolling resistance arises from the inner bending resistance of the flanks and the tread of the rolling tire.
  • the tire Due to the vehicle weight but also due to dynamic influences (unevenness of the road), the tire is pressed in the tread area and in the subsequent flank area - it deforms.
  • the rolling resistance can be effectively reduced by reducing the statically and dynamically effective "thickness" of the reinforcement body, as is achieved in the present case by the staggered looping of the loop threads.
  • the reduction in the tire weight also results primarily from a reduction in the flank wall, but also through a simplification of the fastening of the reinforcement body to the bead core.
  • the reduction in costs is primarily possible through a machine-compatible production of the reinforcing body (automatic unwinding of the thread around the two bead core rings - semicircular widening and fastening of the loops to the bead cores).
  • OMPI 1 is a perspective view of a partially radially cut prefabricated carcass body for belt or radial tires
  • FIG. 3 shows a further manufacturing stage following the stage of FIG. 2,
  • FIGS. 4 shows a perspective view of the first production stage of a production form modified compared to FIGS. 2 and 3,
  • FIG. 5 shows an associated end view in the direction of arrow IV of FIG. 4,
  • FIG. 6 shows a further manufacturing step following FIG. 5,
  • FIGS. 8 shows a further method step for arching the intermediate structures produced according to FIGS. 2 to 7 in a first embodiment
  • FIG. 10 is a partial section along section line X - X of FIG. 11 shows a molded body for the production method from FIG. 8 in a perspective partial view,
  • FIG. 15 shows a method step following FIG. 14 in the production of a carcass body
  • FIGS. 11 to 15 an enlarged partial representation of a molded body with seat or guide grooves for the thread loops compared to FIGS. 11 to 15,
  • Fig. * 17 is a section through the mold body according to Thomas ⁇ line XVII -. XVII of Figure 16,
  • FIGS. 16 and 17 show an embodiment of such a shaped body which is modified compared to FIGS. 16 and 17,
  • FIG. 19 is an associated sectional view according to section line XIX - XIX of FIG. 18,
  • 20A to 20D are schematic views of differently shaped alignment elements for the thread loops on the shaped bodies
  • FIG. 29 is an associated sectional view according to section XXIX - XXIX of FIG. 28,
  • FIG. 31 is a plan view of FIG. 30,
  • Fig. 1 shows a partially cut carcass body by 1 'for a belt or radial tire, which consists of two inner retaining rings or bead cores 25, 26 which are arranged in the bead spacing 34 of the tire body to be manufactured a and between which there is at least the circumference of the cross section of the till a continuous cord or wire thread 2 extends in wholly or partially continuous loops, which are aligned in a fan-like plane lying on the circumference of the retaining rings or bead cores 25, 26, essentially radially outward and arranged in a fan-like manner.
  • the cord or wire thread - as usual - can have a diameter of a few tenths of a millimeter up to 1 mm or more and lies directly on the retaining rings or bead cores in a tight loop.
  • the procedure is such that, as shown in FIG. 2, the cord or wire thread 2 is wrapped in a continuous operation in adjacent sections 2a, 2b and adjoining loops the two closed or still open retaining rings 25, 26 are placed around, the retaining rings, as shown in FIGS. 4 to 7, also initially lying flat or flat * , for example after the removal of supply rolls, with the cord or wire thread 2 umschlun and can be connected on the edge.
  • FIGS. 4 to 7 show the wrapping of two closed retaining rings 2 26 with a practically endless cord or wire thread 2, while in FIGS. 4 to 7 the wrapping of two wire or band-shaped retaining rings or bead cores 25a, 26a, which are still lying flat and have been pulled off a supply roll is shown.
  • the sections 2a, 2 of the cord or wire thread 2 which form the reinforcing inserts can, after tightly laying around the still lying or already closed retaining rings 25a, 26a or 25, 26 by a between the retaining rings 25, 26 inserted expandable toroidal hollow bodies are bulged outwards or are provided with an airtight layer 32 (FIG. 1) on the inside for expansion by applying an internal pressure.
  • the retaining rings 25, 26 or 25a, 26a are initially held at such a wide mutual distance 33 that the thread loops 2a, 2b, after their two winding layers, as shown in FIG. 6 into a common plane tangent to the retaining rings or bead cores 25a, 26a or according to FIG. 7 into a common plane running through the retaining rings, after a subsequent reduction in the distance 33 between the retaining rings in the course of further production, for example to the bead spacing 34 of the carcass body 1 to be produced are brought together and expanded to the full cross-section thereof.
  • the thread loops on the retaining rings or bead cores can be attached to the bead spacing 34 before or after the retaining rings have been brought together, for example by gluing or soldering, or only clamping jaws 40, 41 are used initially bring the retaining rings together and at the same time hold the thread loops on them at an even distance, as shown in FIG. 3.
  • a particularly advantageous fastening is when the retaining rings 25a, 26a; 25, 26 before wrapping the threads with a thin layer of fastening material, into which the threads of the loops e.g. sink in when exposed to heat and are permanently attached after cooling.
  • FIG. 8 shows schematically how the retaining rings 25, 26 and 25a, 26a are brought together by suitable devices in the direction of the two lateral arrows 42, 43 up to the bead spacing 34 of the carcass body 1 'to be produced, wherein the thread loops forming the carcass structure are expanded, for example, by a radially or toroidally curved hollow body 44 in the direction of arrow 45 to the outside.
  • a one-part or multi-part toroidal hollow body 44a is not wrapped around from inside but from the outside around the arched thread loops up to the retaining rings 25, 26 or 25a, 26a, as shown in the sectional view of FIG. 10 is shown.
  • This method can be used in particular when the cord or wire threads have sufficient inherent rigidity to be evenly bulged outwards when the retaining rings or bead cores are brought together.
  • the shaped bodies 44, 44a can consist of a rubber film and have comb-like or rib-like guides for the thread loops on the surfaces facing the thread loops, as is shown in the sectional view of FIG. 10 and in the partial views of FIGS. 11 and 12 of such a shaped body can be recognized with external seat or guide grooves 46.
  • Each thread loop is assigned a seat or guide groove 46 extending over the outer circumference of the body 44 such that the thread loops each lay in the seat or guide grooves in a fan-like manner and at constant distances from the adjacent loops.
  • the hollow body 44 also has longitudinal reinforcing threads 44 'inserted next to one another in the running direction of the tire, by means of which the ' spaces between the transverse thread loops are reduced without the ease of bending of the thin wall thicknesses of tires with such carcass bodies achieved by the invention to impair.
  • the thread loops can be aligned evenly on the outside of the hollow rubber body 44 by rotating alignment brushes 50, alignment rollers 5T, alignment combs 52, roller wheels or the like, as shown in FIGS. 13 and 14, and into the seat or guide grooves 46 on the two flanks and brushed, combed, rolled or tumbled at the zenith of the hollow body 44.
  • Comb-shaped ring segments 53 or longitudinally flexible spiral-shaped alignment devices, such as wire spirals 54, can also serve as additional alignment tools.
  • Fig. 14 it is also shown how a band-shaped rubber ring 60 with a serving as an assembly tool toroidal hollow body 44c is pressed from the inside against the zenith of the arched thread loops and glued to them.
  • preformed band-shaped rubber rings 61, 62 on the flanks up to the shoulders of the carcass body 1 'can then be pressed on from both sides of the inner rubber ring 60 and bonded to the inner rubber ring 60 at least at the edge.
  • the hollow body 44 extends to the retaining rings or bead cores 25, 26 or 25a, 26a and has on its outer side a number of seat or guide grooves 46 corresponding to the number of thread loops, it being possible for alignment or guide cams 47 to protrude outwards to be provided at the spreading points between the thread loops.
  • the hollow body 44 can also have a smooth surface, on which, as shown in FIGS. 18 and 19, spacer cams 47 48 projecting outwards for adjacent thread loops are arranged in the spreading area of the thread loops and in the shoulder area.
  • spacer cams 47, 48 can, as shown in detail in FIG. 20A, have a heart shape, triangular shape, circular disk shape, the shape of a heraldic shield or the like.
  • 21 shows an isosceles spreading on both sides of the thread loops over the flanks and tread of the carcass
  • FIG. 16 again shows a one-sided partial spreading of the thread loops in the flank area and parallel guidance over the tread area in each case up to the opposite tering
  • FIG. 17 shows an isosceles full-width spreading on both sides in the flank area and a parallel guidance of the thread loops in the tread area.
  • the thread spread is chosen to be larger than normal, only for the sake of clarity. It can also be narrower.
  • 25 to 27 show an end-side connection of the two abutting ends of a so-called open retaining ring 25a, 26a by means of a bow-shaped butt coupling 70 which extends over the two ring ends and which, with its two legs 71, 72, either on one side according to FIG be attached to the ring ends or around both ends as shown in FIG. 27.
  • a bow-shaped butt coupling 70 which extends over the two ring ends and which, with its two legs 71, 72, either on one side according to FIG be attached to the ring ends or around both ends as shown in FIG. 27.
  • a corresponding section 73 can be punched out, milled off or removed in some other suitable manner in the area of the bracket opening.
  • the assembly of the hollow body 44 begins in the radial reinforcement insert with a precisely fitting mounting marks 49a, 49b, which are arranged according to FIG. 12 on the two retaining rings and on the inner circumference of the hollow body 44. This ensures the symmetrical position of the two prefabricated components from the start of assembly.
  • the thread loops or thread loops which are initially still unordered, are brushed, combed, rolled or tumbled by the alignment devices shown in FIGS.
  • the correct position of the thread loops is predetermined at the starting point above each retaining ring by the seat or guide groove 46 and the alignment cam 47.
  • an internal rubber ring 44 is pressed against the thread loops by a rotating pressure wheel 80 at the zenith of the carcass cross section. This is expediently done in the lower part of the carcass body 1 ', where the thread loops sag approximately downwards from the retaining rings or bead cores and can therefore be aligned particularly easily and precisely.
  • the checkout body between the retaining rings 25a, 26a is bulged from the inside.
  • the still open retaining rings 25a, 26a are brought together on the bead spacing 34 of the carcass body 1 'and a one or more part, essentially toroidal, thin-walled hollow body 44b is used to expand the thread loops, the outer diameter and cross section of which correspond to the inner diameter and cross section corresponds to the expanded carcass body 1 '.
  • This hollow body has cross on the outside
  • OMPI running seat or guide grooves 46 the course of which corresponds to the mathematically and constructively determined loop course on the carcass body 1 '.
  • This device works in such a way that the still open retaining rings or bead cores with the thread loops around them are fed in sections or continuously in a band form and are closed by a butt coupling only after the thread loops have bulged at their butt ends.
  • gripping wheels 81, 81a, 82, 82a, 81 ', 82 " which are arranged opposite each other in pairs in several stages one after the other and can also engage loops on the top of the thread, the thread loops are grasped individually next to each other, whereby the gripping wheels have a progressively increasing circumference and are driven in such a way that the thread loop, which they grasp on the outer circumference in gripping grooves 83, gripping groove between gripping teeth or the like, in each case in mutual alignment and with increasing distance to the outside on the circumference of the toroidal shaped body 44b be passed for the carcass body 1 '.
  • the rubber ring 60a initially has a zigzag-shaped transverse fold 60b with which it is between the still flat, substantially parallel sections 2a, 2b on the inside of the carcass body to be produced 1 'and is brought into the elongated circumferential shape only when the thread loops subsequently bulge.
  • the distance between the transverse folds on the stretched rubber ring 60a corresponds to the distance between the thread loops on the finished carcass body 1 '.
  • a band-shaped rubber strip 60c can be placed from the outside
  • the carcass body 1 ' can then be further processed normally and can then be provided with the outer belt layers and other tires.
  • This extremely rational production method can be used advantageously for the production of the flank reinforcement of belted tire constructions of all kinds, both with an open tire cross section and with an integrated rim.
  • a particularly advantageous geometry of the thread guide results on the one hand due to the wrapping around and on the other hand due to the thread spreading.
  • the thread runs with one pull (loop) below or inside — and with another pull above or outside the bead core, spreads slightly towards the zenith or tread.
  • the thread loops come closer again as a result of the spreading up to the next opposing looping point. Due to the larger circumference in the zenith, however, there is usually approximately the same maximum thread spacing as in the flanks.
  • the threads in the calendered webs of conventional tires are parallel next to each other in the overlap zone and spread apart on the flanks in parallel at the zenith.
  • the problem here is in the area of the smallest diameter, i.e. where the fabric sheets are wrapped around the bead cores.
  • the thread coulters at the bead core areas must be guided very close together (for example, 100 threads over a 10 cm length) without the threads being allowed to touch .
  • the looping creates the space urgently needed here with the same number of threads (loops).
  • the threads are initially spatially separated from one another in two planes according to the cross section of the retaining rings, until they converge on the flank into a common plane.
  • there are also fifty wrap points in the case of a hundred threads likewise related to a 10 cm circumferential distance, that is to say more space for the tightest thread guidance in the tire zenith. This means additional space for more threads in just one layer of thread, which means greater resilience with the same thickness and the lowest bending resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)

Abstract

Pneus à ceinture ou à carcasse radiale qui contiennent une carcasse formée d'un corset protecteur intérieur de renforcement dont les éléments sont disposés transversalement à la direction de marche. Cette carcasse se compose de cordes ou fils métalliques (2) continus qui passent entre les anneaux de retenue ou tringles de talon (25, 26) du corps du pneu et sont enroulés en boucles alignées les unes à côté des autres, formant ainsi une circonférence torique commune au niveau de la périphérie de la section transversale de la carcasse. Cet agencement de la carcasse permet de produire des pneus à ceinture ou à carcasse radiale selon un procédé de fabrication particulièrement simple et avantageux. Des appareilsparticulièrement avantageux pour réaliser ce procédé de fabrication sont également décrits.
EP83900557A 1982-02-11 1983-02-03 Pneus a ceinture ou a carcasse radiale, appareil et procede de fabrication des memes Withdrawn EP0100335A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3204676 1982-02-11
DE19823204676 DE3204676A1 (de) 1982-02-11 1982-02-11 Fahrzeugrad mit reifenkoerper und verfahren zu dessen herstellung
DE3225996 1982-07-12
DE3225996 1982-07-12

Publications (1)

Publication Number Publication Date
EP0100335A1 true EP0100335A1 (fr) 1984-02-15

Family

ID=25799503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900557A Withdrawn EP0100335A1 (fr) 1982-02-11 1983-02-03 Pneus a ceinture ou a carcasse radiale, appareil et procede de fabrication des memes

Country Status (4)

Country Link
EP (1) EP0100335A1 (fr)
JP (1) JPS59500169A (fr)
IT (1) IT1226866B (fr)
WO (1) WO1983002749A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585632A1 (fr) * 1985-08-03 1987-02-06 Apsley Metals Ltd Pneumatique comportant des moyens perfectionnes d'accrochage du pli de carcasse sur les talons

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597784B1 (fr) * 1986-04-25 1990-10-26 Michelin & Cie Procede et appareil de fabrication de renforcements pour pneumatiques
FR2627430B1 (fr) * 1988-02-19 1990-06-15 Michelin & Cie Arret de la fabrication d'un renforcement pour pneumatique a partir d'un seul fil
FR2628033B1 (fr) * 1988-03-07 1990-06-29 Michelin & Cie Moyens de retenue de fil pour appareil de fabrication de pneumatiques et ensemble constitue par lesdits moyens de retenue et par des moyens de presentation du fil
FR2635043B1 (fr) * 1988-08-05 1990-09-28 Michelin & Cie Appareil de fabrication d'un renforcement pour pneumatiques, ledit renforcement etant constitue a partir d'un seul fil
FR2656564B1 (fr) * 1989-12-28 1992-04-10 Michelin & Cie Paire de crochets pour un appareil de fabrication d'un renforcement pour pneumatiques, et appareil comportant une telle paire de crochets.
IT1241331B (it) * 1990-12-04 1994-01-10 Firestone Int Dev Spa Metodo per la realizzazione di un componente armato tubolare di una carcassa di pneumatico di veicolo
GB2327390A (en) * 1997-07-23 1999-01-27 Holroyd Associates Ltd Tyre manufacture
GB2327391B (en) * 1997-07-23 2001-06-13 Holroyd Associates Ltd Improvements in tyre manufacture
JP4800504B2 (ja) * 2001-05-25 2011-10-26 東洋ゴム工業株式会社 空気入りタイヤ

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US1328006A (en) * 1916-09-18 1920-01-13 Nelson W Mcleod Method of making pneumatic tires
FR505019A (fr) * 1919-10-17 1920-07-21 Alexandre Octave Remy Perfectionnement à la fabrication des carcasses en cordes pour pneumatiques à tringles
US2139840A (en) * 1936-06-06 1938-12-13 Charles W Mckone Process of making pneumatic tires
US3240250A (en) * 1964-06-11 1966-03-15 Nat Standard Co Pneumatic tires
US3375150A (en) * 1965-05-27 1968-03-26 Ind Ovens Inc Tire manufacturing methods
US3336964A (en) * 1965-05-27 1967-08-22 Ind Ovens Inc Radial type tire
MX153272A (es) * 1978-09-08 1986-09-08 Lim Kunststoff Tech Gmbh Procedimiento y aparato para la fabricacion de una llanta neumatica mejorada

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See references of WO8302749A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585632A1 (fr) * 1985-08-03 1987-02-06 Apsley Metals Ltd Pneumatique comportant des moyens perfectionnes d'accrochage du pli de carcasse sur les talons
FR2585620A1 (fr) * 1985-08-03 1987-02-06 Apsley Metals Ltd Procede et appareillage de fabrication de pneumatiques

Also Published As

Publication number Publication date
WO1983002749A1 (fr) 1983-08-18
IT1226866B (it) 1991-02-21
IT8309337A0 (it) 1983-02-11
JPS59500169A (ja) 1984-02-02

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