US20020134202A1 - Composite blade - Google Patents

Composite blade Download PDF

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Publication number
US20020134202A1
US20020134202A1 US09/815,754 US81575401A US2002134202A1 US 20020134202 A1 US20020134202 A1 US 20020134202A1 US 81575401 A US81575401 A US 81575401A US 2002134202 A1 US2002134202 A1 US 2002134202A1
Authority
US
United States
Prior art keywords
blade
strip
blade portions
composite
blades
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.)
Abandoned
Application number
US09/815,754
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English (en)
Inventor
Andre Domange
Patrick Louis
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.)
Individual
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
Priority to US09/815,754 priority Critical patent/US20020134202A1/en
Priority to BR0200777-0A priority patent/BR0200777A/pt
Priority to EP02100259A priority patent/EP1243390B1/en
Priority to DE60213498T priority patent/DE60213498T2/de
Priority to JP2002083292A priority patent/JP2002355822A/ja
Publication of US20020134202A1 publication Critical patent/US20020134202A1/en
Priority to US10/336,269 priority patent/US20030101851A1/en
Abandoned legal-status Critical Current

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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)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • 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
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0613—Means, e.g. sipes or blade-like elements, for forming narrow recesses in the tyres, e.g. cuts or incisions for winter tyres

Definitions

  • the present invention relates to blades for curing molds. More particularly to composite type blades that have thicknesses which can easily be tailored to the tire tread property requirements and a method of fabricating such composite blades.
  • Blades for tire curing molds are well known in the art of tire manufacture. Such blades are conventionally made from a running length or strip of a metallic material such as steel, stainless steel or brass.
  • the strip is generally about 0.4 mm to 1 mm thick and has a length of about 10 to 40 mm. Sometimes the strips are of solid form; other times perforated strips are used to form the blades.
  • U.S. Pat. No. 3,880,020 a method and apparatus for making blades, is disclosed which enables small quantity lots of a multiplicity of different styles of blades to be made rapidly and economically.
  • the method and apparatus permits blades to be blanked out from the stack of material by a plurality of punch and die sets while the stock remains securely attached to an endless loop carrier. If so desired, a plurality of sub-presses are used for forming bends in the blade.
  • WO 99/21701 discloses a method of fabricating a composite blade employing the steps of forming a blade blank and encapsulating at least one end in a second material by placing the end in a die and molding an enlarged cross-section of a second material around the end.
  • the second material is a powdered metal.
  • the blades create sipes in a tread during the vulcanization step of a green tire in a curing mold.
  • a sipe is a narrow groove or incision in the tread and closes when located in the footprint, i.e., in the contact patch of the tire tread with a flat surface at zero speed and under normal load and inflation pressure.
  • the sipes may extend circumferentially or laterally about the tread in a straight, curved or zig-zag manner and may be as deep as the block and rib defining grooves.
  • the sipes may pass through or cut one or both sides of the ribs and blocks or be confined to their interior.
  • sipes lying in planes which are not perpendicular to tangents to the surface of the tread at their point of intersection. It is further known to use sipes having a depth which varies along their length as well as sipes which have varying thicknesses. However, the manufacturing of such blades is expensive and lacks flexibility.
  • the invention provides a method of manufacturing a composite blade having at least two blade portions for a tire curing mold comprising the steps of: providing a first strip of metallic material commonly used to form blades for tire curing molds; stamping or punching out from the strip various shapes to make main blade portions; providing a second strip of metallic material; stamping or punching out from the second strip a set of second blade portions having longitudinal and lateral dimensions; assembling a main portion and at least one of the second blade portions; and affixing the different blade portions together to form the composite blade.
  • the blade portions are affixed by the step of welding or soldering the blade portions together.
  • the method further may have the steps of providing further strips of metallic material; stamping or punching out from the further strips further sets of blade portions having a longitudinal and lateral dimensions which are preferably at most equal to those of the main blade portions; assembling a main and at least one of the second blade portions together with at least one of the further portions; and affixing the different blade portions together.
  • a composite blade obtained through the method is also disclosed.
  • the second strip of metallic material has the same thickness as the first strip and the metal of the second strip of metallic material has the same composition as the first strip.
  • the composite blades may have any number of slots or cuts to form various projections.
  • a mold including the blade and a tire cured in the mold are also disclosed.
  • FIG. 1 is a view of a first strip used to form the main portion of the composite blade according to the invention
  • FIGS. 2 to 4 show various main portions of differing shapes used in assembling the composite blades according to the invention.
  • FIG. 5 is a view of a second strip used to form second portions of the composite blade according to the invention.
  • FIGS. 6 to 10 show various second blade portions of differing shapes used in assembling the blades according to the invention
  • FIGS. 11 to 17 are views of substantially flat composite blades obtained by using the process according to the invention.
  • FIGS. 18 to 20 are side views of composite blades having varying depths obtained by using the process according to the invention.
  • FIGS. 20 to 23 are top views on composite blades according to the invention.
  • FIGS. 24 to 25 are schematic sections across a block of rubbery tread material.
  • FIG. 1 a portion of a first strip ( 100 ) of metallic material commonly used to form blades for tire curing molds is shown.
  • the resultant blades are stamped or punched out from the strip ( 100 ) and take various shapes as shown in FIGS. 2 to 4 .
  • the blades may have any number of slots ( 120 ) or cuts ( 121 ) to form the various projections ( 122 ).
  • the blades may be wavy as shown in FIG. 3 or have bends at their extremities (see FIG. 4).
  • a second strip ( 200 ) of metallic material commonly used to form blades for tire curing molds is stamped or punched to form a second set of blade portions out from the strip ( 200 ) which may take various shapes as shown in FIGS. 6 to 10 .
  • This second strip ( 200 ) of metallic material may have the same thickness as the first strip ( 100 ), a somewhat higher or smaller thickness. Usually the thickness of the first strip ( 100 ) ranges between 0.3 and 1 mm and the thickness of the second strip ( 200 ) between 0.3 and 0.8 mm.
  • the metallic material of the second strip ( 200 ) may be the same as the one of the first strip ( 100 ).
  • Preferred metallic material is steel because of its low cost.
  • the main blade portion ( 101 ) made out of the first strip ( 100 ) is usually at least partly anchored in the mold by holes ( 21 ) (see FIG. 2). This anchoring must be sufficient to insure that the composite blades do not pull out when the tread is extracted from the tire curing mold.
  • the blade portion ( 201 ) made out of the second strip ( 200 ) is or is not anchored in the mold, depending on the design of the blade.
  • the second blade portions ( 201 ) made out of the second strip ( 200 ) may take the shape of a rectangle (FIG. 6), parallelogram (FIG. 7), triangle (FIG. 9), trapezoid (FIG. 10) and may basically have any geometrical shape which is considered by a man skilled in the art to confer favorable properties to the tire tread. They may be flat as shown in FIGS. 6 and 7, or they may be given a curved or wavy shape as shown in FIG. 8, depending on the fact that they will be assembled to a corresponding flat, curved or wavy main portion obtained out of the first strip ( 100 ). Alternatively the main portion ( 101 ) and the second portion ( 201 ) may be given at first a flat shape and after assembly stamped in order to obtain the desired wavy, sinusoidal or crimped or similar shape.
  • the main and second blade portions ( 101 , 201 ) are affixed together. This may be done by gluing using a high temperature epoxy adhesive or a high temperature cement. Another possibility is to subject the assembled portions to a combined compression and heat treatment. A still further possibility is to braze or solder the two portions. The presently preferred way is to weld the different portions together along their lateral adjacent sides, or at multiple points called “spot welding”.
  • the composite blades ( 300 through 312 ), according to the invention, may be fabricated at low cost in a great variety of shapes.
  • FIGS. 11 through 23 illustrate a few of these exemplary shapes, featuring different depths, widths and lengths.
  • FIG. 11 shows a blade ( 300 ) providing a sipe having a greater width in its radially middle portion
  • FIG. 12 shows a blade ( 301 ) having substantially a width double to the one offered by single metallic strips ( 100 ) or ( 200 ).
  • FIG. 13 shows blades ( 302 , 303 , 304 ) providing sipes with laterally stepped off widths, allowing to tailor the elastomeric block stiffness to the requirements; such sipes influence locally transverse deformation of the blocks they are included in.
  • FIG. 16 shows a blade ( 305 ) providing a sipe having on part of its lateral length and on part of its radially inner portion, a higher width.
  • FIG. 17 shows a blade ( 306 ) producing a sipe having on part of its length a higher width, which length decreases towards the tread surface.
  • FIG. 18 shows a blade ( 307 ) providing a sipe having on both sides a higher width and a depth decreasing from both sides towards the center.
  • FIG. 19 shows a blade ( 308 ) providing a sipe having a first side a higher width and a depth decreasing towards the second side.
  • FIG. 20 shows a blade ( 309 ) providing a sipe having a lateral length decreasing radially towards the tread bottom and a higher sipe width portion with a width and length remaining constant.
  • the blades ( 310 , 311 ) obtained according to the method of the invention may include the steps of bending.
  • the bending step may take place before or after assembly of the different blade portions.
  • the blades may fuirther be crimped, notching or perforated before or after assembly.
  • a blade ( 312 ) is shown where only part of the two metal sheets ( 101 and 201 ) overlap.
  • the sheets ( 101 ) and ( 201 ) can have the same height or different heights.
  • FIGS. 24 and 25 the possibility of making interlocking sipes in the tread blocks is illustrated.
  • a block includes usually several sipes. In the instant case, the further sipes may have the same section than the one shown in the drawing.
  • a block ( 241 ) is defined by laterally and circumferentially extending grooves ( 242 ), wherefrom only one kind can be represented in this cross-section.
  • the block ( 241 ) includes sipe ( 245 ) which has in the case of the drawing throughout its height, substantially uniform thickness.
  • the sipe ( 245 ) shows a protrusion ( 243 ) on one side and a recess ( 247 ) on the other.
  • Such sipe ( 245 ) is easily obtained according to the inventive method by assembling to the radially outer part of a first side of a main portion ( 101 ) as shown in FIG. 2, a second blade portion ( 201 ) as shown in FIG. 6; a further similar second blade portion ( 201 ), as shown in FIG. 6 is assembled to the radially inner part of main portion ( 101 ).
  • a block ( 251 ) is defined by laterally and circumferentially extending grooves ( 252 ).
  • the block includes sipe ( 255 ) which has in the case of the drawing throughout its height, substantially uniform thickness. However, slightly above half-height, the sipe shows a protrusion ( 254 ) on one side and a recess ( 253 ) on the other.
  • Such sipe is easily obtained according to the inventive method by assembling to a main portion ( 101 ) as shown in FIG. 2, two blade portion as shown in FIG. 6, to one side, and more specifically a first one ( 101 ) to its radially outer portion and a second one ( 201 ) to its radially inner portion, leaving a free portion in the middle of the main portion ( 101 ), which free portion defines in the cured tire the protrusion ( 254 ).
  • a blade portion ( 201 ) as shown in FIG. 6 is assembled, which blade portion defines the recess ( 253 ) in the cured tire.
  • the loss due to wear of the non-directional interlocking (FIG. 24) or the change from non-directional to directional of the interlocking (FIG. 25) may be controlled by giving the recess ( 247 , 253 ) and similarly the protrusion ( 243 , 254 ) a small inclination. This can easily be implemented by assembling second blade portions ( 201 ), as shown in FIG. 7 to the main portion ( 101 ) of the composite blade ( 300 through 312 ).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
US09/815,754 2001-03-23 2001-03-23 Composite blade Abandoned US20020134202A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US09/815,754 US20020134202A1 (en) 2001-03-23 2001-03-23 Composite blade
BR0200777-0A BR0200777A (pt) 2001-03-23 2002-03-13 Lâmina compósita
EP02100259A EP1243390B1 (en) 2001-03-23 2002-03-15 Composite blade for a tire curing mould
DE60213498T DE60213498T2 (de) 2001-03-23 2002-03-15 Verbundblatt für ein Reifenvulkanisierformwerkzeug
JP2002083292A JP2002355822A (ja) 2001-03-23 2002-03-25 複合ブレード
US10/336,269 US20030101851A1 (en) 2001-03-23 2003-01-03 Composite blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/815,754 US20020134202A1 (en) 2001-03-23 2001-03-23 Composite blade

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/336,269 Division US20030101851A1 (en) 2001-03-23 2003-01-03 Composite blade

Publications (1)

Publication Number Publication Date
US20020134202A1 true US20020134202A1 (en) 2002-09-26

Family

ID=25218749

Family Applications (2)

Application Number Title Priority Date Filing Date
US09/815,754 Abandoned US20020134202A1 (en) 2001-03-23 2001-03-23 Composite blade
US10/336,269 Abandoned US20030101851A1 (en) 2001-03-23 2003-01-03 Composite blade

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/336,269 Abandoned US20030101851A1 (en) 2001-03-23 2003-01-03 Composite blade

Country Status (5)

Country Link
US (2) US20020134202A1 (enExample)
EP (1) EP1243390B1 (enExample)
JP (1) JP2002355822A (enExample)
BR (1) BR0200777A (enExample)
DE (1) DE60213498T2 (enExample)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080152741A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for manufacturing a sunken groove in a tire tread
US20080152740A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for manufacturing a sunken groove or surface tie bar in a tire tread
US20080152744A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for manufacturing a sunken groove in a tire tread
US20080152743A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible enrobed molding device for manufacturing a sunken groove in a tire tread
US20080152745A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for molding a sunk groove, a sunk blade, and a large keyhole sipe in tire tread
WO2017102499A1 (fr) * 2015-12-18 2017-06-22 Compagnie Generale Des Etablissements Michelin Lamelles de garniture pour moule de pneumatique et procédé de fabrication associé
FR3053920A1 (fr) * 2016-07-18 2018-01-19 Compagnie Generale Des Etablissements Michelin Insert texture pour garniture d’un moule destine a la vulcanisation d’un pneumatique
WO2018062507A3 (en) * 2016-09-29 2018-05-17 Compagnie Generale Des Etablissements Michelin Molding element for manufacturing a noise reducing tread
US10343464B2 (en) * 2014-12-25 2019-07-09 Toyo Tire Corporation Pneumatic tire and molding die thereof
CN112154060A (zh) * 2018-05-25 2020-12-29 米其林集团总公司 模制元件的组件
US20220355559A1 (en) * 2019-06-14 2022-11-10 Compagnie Generale Des Etablissements Michelin Two-part mold for vulcanizing tires
EP4159484A1 (en) * 2021-09-29 2023-04-05 Ceat Limited Pneumatic tire with three-dimensional sipe
US20240066821A1 (en) * 2021-02-09 2024-02-29 Bridgestone Corporation Sipe blade, tire molding mold, and tire manufacturing method

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US7143799B2 (en) * 2003-11-20 2006-12-05 The Goodyear Tire & Rubber Company Three-dimensional sipes for treads
FR2871735B1 (fr) * 2004-06-16 2006-08-04 Michelin Soc Tech Bande de roulement ayant des incisions zigzag et lames pour le moulage de telles incisions
US7468153B2 (en) 2004-12-30 2008-12-23 The Goodyear Tire & Rubber Co. Degradable blading for tire curing molds
US7360568B2 (en) * 2005-01-27 2008-04-22 Bridgestone Firestone North American Tire, Llc Tire having narrowing sipes
DE102005030176A1 (de) * 2005-06-29 2007-01-04 Continental Aktiengesellschaft Form zur Ausformung der Profilierung eines Fahrzeugluftreifens
JP4751164B2 (ja) * 2005-10-06 2011-08-17 株式会社ブリヂストン 空気入りタイヤ
WO2008066527A1 (en) * 2006-11-29 2008-06-05 Societe De Technologie Michelin Mold having elements for sole side of tread, method of using mold and tread
JP4318148B2 (ja) * 2007-05-29 2009-08-19 東洋ゴム工業株式会社 空気入りタイヤ
JP4404922B2 (ja) * 2007-08-24 2010-01-27 東洋ゴム工業株式会社 空気入りタイヤ
JP5261783B2 (ja) * 2007-09-26 2013-08-14 東洋ゴム工業株式会社 空気入りタイヤ
JP4446077B2 (ja) * 2007-12-28 2010-04-07 東洋ゴム工業株式会社 空気入りタイヤ
JP2009248819A (ja) * 2008-04-08 2009-10-29 Toyo Tire & Rubber Co Ltd 空気入りタイヤ
CN102171029B (zh) * 2008-10-03 2017-08-04 米其林集团总公司 起伏状的改进的轮胎模具元件
JP5270407B2 (ja) * 2009-03-09 2013-08-21 東洋ゴム工業株式会社 空気入りタイヤ
JP4394161B1 (ja) * 2009-04-17 2010-01-06 横浜ゴム株式会社 空気入りタイヤ
JP5562727B2 (ja) * 2010-06-01 2014-07-30 東洋ゴム工業株式会社 空気入りタイヤ
JP5797452B2 (ja) * 2011-05-16 2015-10-21 東洋ゴム工業株式会社 サイプブレード及びタイヤ製造方法
EP2817162B1 (en) * 2012-01-31 2018-08-15 Compagnie Générale des Etablissements Michelin Projecting features molded within submerged tread voids
FR3000424B1 (fr) * 2012-12-28 2015-05-15 Michelin & Cie Element de moule comportant des moyens de decoupe pour le moulage et la vulcanisation d'une bande de roulement d'un pneumatique
JP5957405B2 (ja) * 2013-03-19 2016-07-27 住友ゴム工業株式会社 空気入りタイヤ
JP5690375B2 (ja) * 2013-06-05 2015-03-25 株式会社ブリヂストン タイヤ
US10882362B2 (en) 2014-09-30 2021-01-05 Compagnie Generale Des Etablissements Michelin Stiffeners for sipe-molding members
WO2017058226A1 (en) 2015-09-30 2017-04-06 Compagnie Generale Des Etablissements Michelin Variable thickness sipes
WO2017058224A1 (en) 2015-09-30 2017-04-06 Compagnie Generale Des Etablissements Michelin Egg crate sidewall features for sipes
DE102016204416A1 (de) * 2016-03-17 2017-09-21 Herbert Maschinenbau GmbH & Co. KG Matrize für eine Reifenform, Reifenform und Verfahren zur Herstellung
KR101782621B1 (ko) * 2016-06-28 2017-09-27 넥센타이어 주식회사 타이어
FR3053919A1 (fr) * 2016-07-18 2018-01-19 Compagnie Generale Des Etablissements Michelin Lamelle hybride de garniture d’un moule pour pneumatique
JP6885176B2 (ja) * 2017-04-18 2021-06-09 住友ゴム工業株式会社 タイヤ
JP6904783B2 (ja) * 2017-05-15 2021-07-21 Ｔｏｙｏ Ｔｉｒｅ株式会社 タイヤ加硫金型及びタイヤ加硫金型の製造方法
WO2020190402A1 (en) * 2019-03-20 2020-09-24 Bridgestone Americas Tire Operations, Llc Mold segment irregular wear and noise countermeasure
US20210268758A1 (en) * 2020-02-28 2021-09-02 Bridgestone Americas Tire Operations, Llc Reinforced tire sipe blade

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080152741A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for manufacturing a sunken groove in a tire tread
US20080152740A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for manufacturing a sunken groove or surface tie bar in a tire tread
US20080152744A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for manufacturing a sunken groove in a tire tread
US20080152743A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible enrobed molding device for manufacturing a sunken groove in a tire tread
US20080152745A1 (en) * 2006-12-21 2008-06-26 Gia-Van Nguyen Flexible molding device for molding a sunk groove, a sunk blade, and a large keyhole sipe in tire tread
US7507078B2 (en) * 2006-12-21 2009-03-24 The Goodyear Tire & Rubber Company Flexible molding device for molding a sunk groove, a sunk blade, and a large keyhole sipe in tire tread
US7544054B2 (en) * 2006-12-21 2009-06-09 The Goodyear Tire & Rubber Company Flexible molding device for manufacturing a sunken groove in a tire tread
US7544053B2 (en) * 2006-12-21 2009-06-09 The Goodyear Tire And Rubber Company Flexible molding device for manufacturing a sunken groove or surface tie bar in a tire tread
US7566213B2 (en) * 2006-12-21 2009-07-28 The Goodyear Tire & Rubber Company Flexible enrobed molding device for manufacturing a sunken groove in a tire tread
US7575424B2 (en) * 2006-12-21 2009-08-18 The Goodyear Tire & Rubber Company Flexible molding device for manufacturing a sunken groove in a tire tread
US10343464B2 (en) * 2014-12-25 2019-07-09 Toyo Tire Corporation Pneumatic tire and molding die thereof
FR3045452A1 (fr) * 2015-12-18 2017-06-23 Michelin & Cie Lamelles de garniture pour moule de pneumatique et procede de fabrication associe
WO2017102499A1 (fr) * 2015-12-18 2017-06-22 Compagnie Generale Des Etablissements Michelin Lamelles de garniture pour moule de pneumatique et procédé de fabrication associé
US10434734B2 (en) 2015-12-18 2019-10-08 Compagnie Generale Des Etablissements Michelin Sipes for lining a tire mould and associated manufacturing method
FR3053920A1 (fr) * 2016-07-18 2018-01-19 Compagnie Generale Des Etablissements Michelin Insert texture pour garniture d’un moule destine a la vulcanisation d’un pneumatique
WO2018015631A1 (fr) * 2016-07-18 2018-01-25 Compagnie Generale Des Etablissements Michelin Lamelle texturee pour garniture d'un moule destine a la vulcanisation d'un pneumatique
WO2018062507A3 (en) * 2016-09-29 2018-05-17 Compagnie Generale Des Etablissements Michelin Molding element for manufacturing a noise reducing tread
CN112154060A (zh) * 2018-05-25 2020-12-29 米其林集团总公司 模制元件的组件
US20220355559A1 (en) * 2019-06-14 2022-11-10 Compagnie Generale Des Etablissements Michelin Two-part mold for vulcanizing tires
US20240066821A1 (en) * 2021-02-09 2024-02-29 Bridgestone Corporation Sipe blade, tire molding mold, and tire manufacturing method
EP4159484A1 (en) * 2021-09-29 2023-04-05 Ceat Limited Pneumatic tire with three-dimensional sipe

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US20030101851A1 (en) 2003-06-05
DE60213498D1 (de) 2006-09-14
EP1243390A3 (en) 2004-01-02
DE60213498T2 (de) 2007-10-18
EP1243390B1 (en) 2006-08-02
JP2002355822A (ja) 2002-12-10
EP1243390A2 (en) 2002-09-25
BR0200777A (pt) 2003-01-07

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