WO2008025598A1 - Procédé de fabrication d'un bandage cru ou d'une carcasse de bandage cru sur un tambour de confection de bandages - Google Patents

Procédé de fabrication d'un bandage cru ou d'une carcasse de bandage cru sur un tambour de confection de bandages Download PDF

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Publication number
WO2008025598A1
WO2008025598A1 PCT/EP2007/056922 EP2007056922W WO2008025598A1 WO 2008025598 A1 WO2008025598 A1 WO 2008025598A1 EP 2007056922 W EP2007056922 W EP 2007056922W WO 2008025598 A1 WO2008025598 A1 WO 2008025598A1
Authority
WO
WIPO (PCT)
Prior art keywords
profiles
carcass
bead
tire
core
Prior art date
Application number
PCT/EP2007/056922
Other languages
German (de)
English (en)
Inventor
Udo Frerichs
Original Assignee
Continental Aktiengesellschaft
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 Continental Aktiengesellschaft filed Critical Continental Aktiengesellschaft
Publication of WO2008025598A1 publication Critical patent/WO2008025598A1/fr

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
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D30/3021—Applying the layers; Guiding or stretching the layers during application by feeding a continuous band and winding it spirally, i.e. the band is fed without relative movement along the drum axis, to form an annular element
    • 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
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D30/3028—Applying the layers; Guiding or stretching the layers during application by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the drum axis, to form an annular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/0009—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/0009—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts
    • B60C17/0018—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts two or more inserts in each sidewall portion
    • 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
    • B29D2030/201—Manufacturing run-flat tyres
    • 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)
    • B29D30/72—Side-walls
    • B29D2030/724—Stiffening the sidewalls, e.g. by using additional inserts, e.g. made of rubber, plastics or other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C2001/0033—Compositions of the sidewall inserts, e.g. for runflat

Definitions

  • the invention relates to a method for building a green tire or a green tire carcass on a tire building drum, consisting of an inner layer, reinforcing profiles for side walls, at least one carcass ply and bead areas with bead cores and core profiles, wherein the tire building drum is provided with circumferential pockets for receiving the reinforcing profiles and wherein the tire building drum first the inner layer, then the reinforcing profiles and the carcass ply (s) and finally the bead cores and the core profiles are applied.
  • Self-supporting pneumatic vehicle tires which are provided in the area of the side walls with reinforcing profiles, which usually have a crescent-shaped
  • Tire building drum to be provided with recesses or circumferential pockets, in which the reinforcing profiles are positioned on the inner layer, so that subsequently the carcass ply can be placed at least substantially along a cylindrical surface.
  • US 5,114,512 it is also known to build the approximately triangular in cross-section core profiles by spirally winding a strip of material from a rubber mixture.
  • WO 2005/105419 it is known to produce a runnable tire according to a method in which on a primary tire building drum, a tire carcass with at least one pair of
  • Reinforcement profiles and at least one carcass ply is constructed, then the tire carcass is brought into a toroidal shape and is joined together with a belt bandage with at least one belt layer.
  • the reinforcing profiles which are constructed from at least one strip of material of a rubber mix by spirally winding on a service drum, are transferred from the service drum to the primary tire building drum before the carcass ply is positioned.
  • the invention is based on the object to be able to provide variably designed reinforcement profiles in a method of the type mentioned in a simple manner.
  • the stated object is achieved in that the reinforcing profiles by coils of one or more strips of material (s) or by coils of strips of material made of different materials is or will be.
  • Tire building drum formed by coils of material strips. This allows a very flexible design of the reinforcing profiles, in particular a very variable forming the profile outlets in the direction of the tire shoulder or the later belt and in the direction of (not yet set in this stage) bead cores.
  • the reinforcing profiles can also be constructed of strips of varying width and thickness to ensure the desired cross-sectional shape of the reinforcing profiles.
  • a multipart, particularly rigid reinforcing insert can be produced simply by positioning a carcass ply on a layer of the coiled material strip, to which another layer is wound.
  • the expansion of the reinforcing profiles in the direction of the bead core and / or Reifenzenit can be easily select or set, in which the strip of material from at least one of the layers, in particular with little or no overlap towards the direction later bead and / or direction of the drum center is spooled.
  • strips of material are used which contain short fibers, which are preferably longitudinally oriented.
  • the core profiles are likewise constructed by spirally winding or winding at least one strip of material from a rubber mixture.
  • particularly stiff core profiles can be formed, wherein for the core profiles and the material strip, which is used for the structure of Verstärkungspro file, can be used.
  • the coils of the core profiles opens up a number of advantageous ways to build the core profiles in different variants.
  • One of these preferred variants consists in that the core profiles are built up on the carcass ply which has already been turned over on itself by winding the material strip.
  • a two-part core profile can be constructed with the core profile parts separated from one another by the carcass turn-up or a separate bead reinforcing ply.
  • the invention further relates to a vehicle pneumatic tire produced according to the method of the invention. Further features, advantages and details of the invention will now be described with reference to the schematic drawing illustrating several exemplary embodiments. Show
  • FIG. 2 is a sectional view of a part of the peripheral portion of a building drum for manufacturing a tire carcass at a stage during tire building;
  • Fig. 3 is a Fig. 2 corresponding view with a later stage of the tire structure
  • FIGS. 4 to 6 show different variants of the formation of core profiles during tire construction.
  • Fig. 1 shows in cross-section a self-supporting radial tire, which is in a position where a pressure loss in the event of a breakdown in a position to be as sustainable that a drive over a certain time and at reduced speed is possible.
  • the essential components of the tire are a profiled tread 1, a preferably two-ply belt 2, a carcass ply 3, an airtight inner layer 4, bead areas 5 with bead cores 6 and core profiles 7, side walls 8 and one cross-sectionally approximately crescent-shaped reinforcing profile 9 in each side wall 8
  • the layers of the belt 2 may consist in known manner of reinforcements embedded in a rubber compound, preferably steel cords, which run parallel to one another within each layer, the steel cords in one layer intersecting the steel cords in the other layer and one with the tire circumferential direction Angle, which is between 15 ° and 30 ° include.
  • the reinforcing profiles 9 are arranged between the inner layer 4 and the carcass ply 3 and extend over the shoulder regions of the tire to below the edges of the belt 2 and into the vicinity of the bead cores 6 or also as far as the bead cores 6.
  • the carcass ply 3 is guided in each bead region 5 coming from axially inside around the bead core 6 and extends in the direction of the belt 2 to a certain height and thus forms the high-lift 3a.
  • the core profile 7 is located between the high impact 3a and the carcass ply 3 radially outward on the bead cores 6 sitting.
  • the reinforcing profiles 9 and optionally also the core profiles 7 have been produced in the manufacture of the tire by winding material strips of rubber mixtures. This will now be explained in more detail with reference to FIGS. 2 to 6.
  • the construction of the tire takes place from still unvulcanized components, wherein the so-called tire carcass is built up on a cylindrical tire building drum in the usual two-stage construction process, which has the inner layer 4, the reinforcing profiles 9, the carcass ply 3, the bead cores 6 and the core profiles 7 as main components.
  • Fig. 2 and 3 show a section of a peripheral portion of a cylindrically designed tire building drum 10.
  • the tire building drum 10 is provided over its circumference with two circumferential recesses or pockets 11 for the Verstärkungspro file 9, so that the carcass ply 3 after positioning the inner layer 4 and the Forming the reinforcing profiles 9 can be placed at least substantially along a cylinder jacket surface.
  • the circumferential pockets 11 are adapted with respect to their inner contour to the cross-sectional contour of the reinforcing profiles 9 to be formed.
  • the rubber compound plate constituting the later inner layer 4 of the tire is placed on the tire building drum 10 and pressed into the pockets 11.
  • the material strip 12 may consist of a rubber compound that is common and suitable for reinforcing profiles in sidewalls of tires.
  • the strips of material 12 are extruded as a mixture strand, which is deformed into a strip having a width of about 5 mm to 20 mm and a thickness of about 1 mm to 2 mm.
  • a layer of strips of material 12 is initially spooled overlapping roof tiles.
  • a second layer of the same or another strip of material 12 is preferably oriented in opposite directions to the strip of material 12 in the first layer, likewise wrapped or ragged like a roof tile overlapping the circumference of the drum.
  • the material strip 12 of one of the layers, preferably the second layer is also wound in the direction of the drum center a piece, here with less or no overlap.
  • the strip of material 12 may also be wound beyond the drum shoulders to adjacent the later position of the bead cores to provide an approximately uniformly rigid circumferential band in the tire with a corresponding overlap zone extending radially from the bead core to about two-thirds of the tire cross-sectional area and then expires to the belt edge area.
  • the material strip or strips 12 used to form the reinforcing profiles 9 may be fiber-reinforced.
  • textile short fibers are mixed into the rubber mixture for the material strips 12, which in the strip 12 either no preferred orientation or an orientation in the longitudinal direction of
  • Material strip 12 have. It may also be provided a layer of a fiber-reinforced material between the two coiled layers.
  • the carcass ply 3 is put around the tire building drum 10 and the bead cores 6 are set.
  • the cores 6 can already be set with prepositioned core profiles 7 or, according to a preferred embodiment of the invention, the core profiles 7 can also be formed by winding a material strip 13.
  • a strip of material 13 starting at the respective bead core 6 in several turns wound on each other with changing overlap, as shown in Fig. 3.
  • Core profiles 7 are made of a rubber compound that is common for core profiles, wherein the same material as for the reinforcing profiles 9 can be used. By the coils, it is possible, in particular, to form very stiff core profiles 7.
  • carcass plies can be provided. These can be arranged one above the other, thus also be guided together around the core and have staggered arranged staggered each other.
  • the one carcass ply after the coils of the one layer of the material strip 12 already positioned, then the second layer of the material strip 12 wound or wound and then positioned the second carcass ply.
  • the bead cores 6, possibly together with core profiles 7, are set and the two carcass plies are guided around the core together, whereby staggered stacks are also formed.
  • Fig. 4 to 6 show different embodiments of the formation of the core profiles 7 with different arrangements of the carcass ply 3 and the high blow 3 a in the construction of the tire.
  • the carcass ply 3 can be performed completely around the bead core 6 before the Kernpro fil 7 is placed by winding a MaterailstMails 13 on the drum circumference, so that in the finished tire of the bump 3 a on the inside of the Kernpro fils 7 is.
  • Fig. 5 shows a variant in which a two-part core profile 7 consisting of parts 7a, 7b is produced by coils of material strip 13, wherein first a short core profile 7a is wound on the bead core 6 of a strip of material 13, then the high blow 3 a of Carcass ply 3 is formed and then at the
  • the second core profile part 7b is constructed by winding a strip of material 13.
  • a bead reinforcing layer 14 is positioned between two core profile parts 7'a, 7'b, the carcass turnup 3a is located outside the second core profile part 7'b.
  • the structure of the two core profile parts 7'a, 7'b takes place as already described.
  • the invention is not limited to the illustrated and described embodiments.
  • material strips of different rubber mixtures when building up the reinforcing profiles, and also material strips whose cross-sectional areas are varied over their longitudinal extent.
  • the strip of material can or can be wound in more than two layers.
  • the construction of multi-part reinforcing profiles with and without running between reinforcing layers or carcass layers is possible.

Landscapes

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

Abstract

L'invention concerne un procédé de fabrication d'un bandage cru (1) ou d'une carcasse de bandage cru (2) sur un tambour de confection de bandages (10), comprenant une couche interne (4), des profils de renforcement (9) pour les parois latérales (8), au moins une nappe carcasse (3) et des zones de talon (5) présentant des tringles de talon (6) et des profilés de noyau (7). Le tambour de confection de bandages est muni de poches rotatives (11) destinées à loger les profils de renforcement (9). La couche interne (4) est d'abord appliquée sur le tambour de confection de bandages (10), puis les profils de renforcement (9) et la ou les nappes carcasse (3), et enfin les tringles de talon (6) et les profilés de noyau (7). Les profils de renforcement (9) sont formés par l'enroulement d'une ou de plusieurs bandes de matériau (12) ou par l'enroulement de bandes de matériau constituées de différents matériaux.
PCT/EP2007/056922 2006-08-29 2007-07-09 Procédé de fabrication d'un bandage cru ou d'une carcasse de bandage cru sur un tambour de confection de bandages WO2008025598A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006040413.0 2006-08-29
DE200610040413 DE102006040413A1 (de) 2006-08-29 2006-08-29 Verfahren zum Aufbauen eines Rohreifens oder einer Rohreifenkarkasse auf einer Reifenaufbautrommel

Publications (1)

Publication Number Publication Date
WO2008025598A1 true WO2008025598A1 (fr) 2008-03-06

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ID=38578690

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PCT/EP2007/056922 WO2008025598A1 (fr) 2006-08-29 2007-07-09 Procédé de fabrication d'un bandage cru ou d'une carcasse de bandage cru sur un tambour de confection de bandages

Country Status (2)

Country Link
DE (1) DE102006040413A1 (fr)
WO (1) WO2008025598A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110139328A1 (en) * 2008-08-11 2011-06-16 Pirelli Tyre S.P.A. Process for building green tyre for vehicle wheels and tyres built by said process
US10040262B2 (en) 2014-02-07 2018-08-07 Davian Enterprises, LLC Expandable belt and tread drum with varied curvature segments
US10189221B2 (en) 2012-08-10 2019-01-29 Davian Enterprises, LLC Transfer ring shoe and transfer ring having varied shoe profile
US11358356B2 (en) 2018-09-27 2022-06-14 Davian Enterprises, LLC Transfer ring with block and rail system
US11548251B2 (en) 2019-01-28 2023-01-10 Davian Enterprises, LLC Expandable belt and tread drum with reverse offset fingers
US11993043B2 (en) 2021-12-03 2024-05-28 Davian Enterprises, LLC Expandable belt and tread drum with magnetic deck fixing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100024960A1 (en) * 2005-09-01 2010-02-04 Bridgestone Americas Tire Operations, Llc Body ply and insert assembly method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634266A2 (fr) * 1993-07-16 1995-01-18 The Goodyear Tire & Rubber Company Tambour profilé de confection de pneumatiques et procédé de fabrication d'un pneu à plus grande mobilité
EP1142695A2 (fr) * 2000-04-07 2001-10-10 Bridgestone Corporation Procédé pour la confection de pneus
US20030102088A1 (en) * 2001-01-31 2003-06-05 Shuhei Iiduka Tire manufacturing method
JP2005280534A (ja) * 2004-03-30 2005-10-13 Sumitomo Rubber Ind Ltd ランフラットタイヤ
EP1650012A1 (fr) * 2003-07-29 2006-04-26 Bridgestone Corporation Procede de production de pneumatique et pneumatique
DE102004059771A1 (de) * 2004-12-11 2006-06-14 Continental Aktiengesellschaft Fahrzeugluftreifen und Verfahren zur Herstellung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634266A2 (fr) * 1993-07-16 1995-01-18 The Goodyear Tire & Rubber Company Tambour profilé de confection de pneumatiques et procédé de fabrication d'un pneu à plus grande mobilité
EP1142695A2 (fr) * 2000-04-07 2001-10-10 Bridgestone Corporation Procédé pour la confection de pneus
US20030102088A1 (en) * 2001-01-31 2003-06-05 Shuhei Iiduka Tire manufacturing method
EP1650012A1 (fr) * 2003-07-29 2006-04-26 Bridgestone Corporation Procede de production de pneumatique et pneumatique
JP2005280534A (ja) * 2004-03-30 2005-10-13 Sumitomo Rubber Ind Ltd ランフラットタイヤ
DE102004059771A1 (de) * 2004-12-11 2006-06-14 Continental Aktiengesellschaft Fahrzeugluftreifen und Verfahren zur Herstellung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110139328A1 (en) * 2008-08-11 2011-06-16 Pirelli Tyre S.P.A. Process for building green tyre for vehicle wheels and tyres built by said process
US10189221B2 (en) 2012-08-10 2019-01-29 Davian Enterprises, LLC Transfer ring shoe and transfer ring having varied shoe profile
US10328647B2 (en) 2013-08-12 2019-06-25 Davian Enterprises, LLC Expandable belt and tread drum having irregular segment profiles
US10040262B2 (en) 2014-02-07 2018-08-07 Davian Enterprises, LLC Expandable belt and tread drum with varied curvature segments
US11358356B2 (en) 2018-09-27 2022-06-14 Davian Enterprises, LLC Transfer ring with block and rail system
US11548251B2 (en) 2019-01-28 2023-01-10 Davian Enterprises, LLC Expandable belt and tread drum with reverse offset fingers
US11993043B2 (en) 2021-12-03 2024-05-28 Davian Enterprises, LLC Expandable belt and tread drum with magnetic deck fixing

Also Published As

Publication number Publication date
DE102006040413A1 (de) 2008-03-06

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