WO2003033281A1 - Bande de roulement comportant des incisions et lamelle pour mouler ces incisions - Google Patents
Bande de roulement comportant des incisions et lamelle pour mouler ces incisions Download PDFInfo
- Publication number
- WO2003033281A1 WO2003033281A1 PCT/EP2002/011112 EP0211112W WO03033281A1 WO 2003033281 A1 WO2003033281 A1 WO 2003033281A1 EP 0211112 W EP0211112 W EP 0211112W WO 03033281 A1 WO03033281 A1 WO 03033281A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lines
- series
- wall
- incision
- tread
- 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.)
- Ceased
Links
Classifications
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
-
- 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
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
- B60C11/1218—Three-dimensional shape with regard to depth and extending direction
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1272—Width of the sipe
- B60C11/1281—Width of the sipe different within the same sipe, i.e. enlarged width portion at sipe bottom or along its length
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S152/00—Resilient tires and wheels
- Y10S152/03—Slits in threads
Definitions
- the invention relates to the field of tread patterns for tires. It relates more particularly to the incisions molded in the treads as well as the molding elements used to mold such incisions.
- patent US4794965 describes a particular arrangement of zigzag incisions in the thickness of a tread
- patent US5783002 describes an incision whose opposite walls are provided with relief patterns intended to overlap one another in the passage in the footprint with the roadway.
- the tire according to the invention comprises a tread having a tread surface intended to be in contact with the roadway during the rolling of said tire.
- This strip is provided with a plurality of incisions extending in the thickness of the strip, each incision of average thickness e being delimited by walls of rubbery mixture opposite, each incision having a medium surface.
- this strip being characterized in that at least one of the walls delimiting each incision comprises: at least one series of lines of patterns in relief with respect to said wall and having a maximum height measured perpendicular to said wall at least equal to 1/10 of the width e, each series of lines comprising a plurality of lines substantially parallel to each other, and in that at least one of the walls delimiting each incision comprises : over its entire surface, a plurality of elements of relief regularly distributed over said wall and forming a roughness on this wall surface average between 1/100 and
- a first series and a second series of lines of relief patterns are formed on at least one wall, the maximum height of which measured perpendicular to said wall is at least equal to 1/10 of the width e, the lines of the first series crossing the lines of the second series.
- the lines of the first series make with the lines of the second series an acute angle at least equal to 45 °.
- the incision according to the invention makes it possible, with the same rubber material, to substantially increase the equivalent coefficient of friction of the walls of the parts of the rubber mixture delimiting said incision.
- This increase in the coefficient of friction is particularly effective in reducing the small relative displacements of a wall with respect to the opposite wall and in particular near the surface of contact with the roadway.
- the combined presence of relief lines (comparable to macro roughness) and surface roughness (comparable to micro roughness) unexpectedly increases the blocking effect of a wall on the opposite wall mainly in the field of low or medium loads.
- the tire provided with incisions according to the invention is less sensitive to the presence of water on the road, the predominant influence of which is known on the coefficient of friction between two smooth walls of the same mixture rubber (reduction of said coefficient of up to 50% or even more).
- the invention finds applications for use in the treads of tires of passenger vehicles or heavy goods vehicles; in each respective case, the values of macro roughness and micro roughness can be easily adapted as a function of the average widths of the incisions which can range up to 3 mm.
- the lines of relief patterns of each series of at least one wall are substantially inclined by an angle ⁇ between 10 ° and 80 ° with a direction perpendicular to the running surface of the strip, and this on at least part of their length.
- Another object of the invention relates to a strip intended to equip a tread mold made of elastomeric material, this strip having main faces for molding in a strip opposite walls delimiting an incision of average thickness e , at least one of the main faces of the strip having at least one series of lines of recessed patterns with respect to said wall and having a maximum depth measured perpendicular to said wall at least equal to 1/10 of the width e, each series lines of patterns comprising a plurality of lines substantially parallel to one another, at least one of the main faces of the strip having over its entire surface an equivalent average roughness of between 1/100 and 1/10 of the width e of the incision.
- line of intaglio patterns we can have a continuous line or a line formed by discontinuous patterns.
- at least one main face of the strip according to the invention is provided with a first series and a second series of lines of recessed patterns, the lines of each series extending in the same direction, and the lines of the first series crossing the lines of the second series to make an average acute angle ⁇ at least equal to 45 °.
- Figure 1 shows a metal strip used to mold an incision according to the invention
- Figure 2 shows a sectional view along line II-II of the strip shown in Figure 1;
- Figure 3 shows a rubber wall of an incision according to the invention made in a tread.
- FIG 1 there is a strip 1 of planar overall geometry having two main faces 2, 2 'intended for molding the facing walls delimiting an incision according to the invention in a tread.
- the thickness of the strip measured between the two main faces is equal in the case described to 0.6 mm.
- the average surface of this strip is here a flat surface dividing the strip into two parts of the same volume and passing at half thickness.
- each main face 2 and 2 ′ On the whole of each main face 2 and 2 ′, a surface treatment by shot blasting was carried out in order to obtain on the walls of rubber material molded with the strip a uniform micro roughness of between 1/10 and 1/100 of l 'thickness of the coverslip.
- This surface treatment produces a plurality of cavities 3 and 3 'regularly distributed over the main faces of the strip, said cavities in the present case having a maximum depth of between 40 and 50 ⁇ m.
- These cavities 3 and 3 ′ are visible more particularly in FIG. 2 showing a sectional view along line II-II of the strip 1.
- the grooves 31 of the first series 3 have a triangular cross section and have a maximum depth equal to 0.1 mm and a maximum width equal to 0.5 mm; these grooves 31 are, in this case, rectilinear and parallel to each other and spaced from each other by an average pitch equal to 1 mm.
- the average pitch between the grooves is preferably at least equal to 5% of the average length L] of the incision and at most equal to 20% of this same length L t (this length L in the present case equal to 20 mm, being measured parallel to a direction parallel to the running surface of a tread molded in a mold provided with said strip).
- the grooves 31 of the wall 2 make an angle ⁇ equal to 25 ° with a direction perpendicular to the running surface of the strip (this direction is perpendicular to the direction along which the length L is measured).
- the grooves 41 of the second series 4 on the same main face 2 have the same characteristics as those of the first series and cross them by making an average acute angle ⁇ equal to 45 °.
- the series of grooves made on the other main face 2 ′ of the strip have characteristics similar to those which have just been described. It is of course possible to make grooves on the second main face having orientations different from those made on the first main face in order to further improve the interaction between the facing faces of the molded incision with this coverslip.
- incisions can be made to have medium surfaces whose geometrical shapes are suitable for allowing mechanical cooperation by nesting the opposite walls delimiting said incisions.
- This mechanical cooperation offers the advantage of taking over from the blockages obtained with the micro and macro roughness according to the invention when the stresses increase significantly.
- FIG. 3 shows a wall 20 of an incision according to the invention, this incision being molded in a sculpture block 10 of a rubber tread.
- This wall 20 of width L comprises undulations 11 around a direction X perpendicular to said width L (this direction X extends in the thickness of the sculpture block 10), said undulations extending over this entire length L. These undulations are formed on the opposite walls delimiting the incision and allow a mechanical meshing of one wall on the other in the passage in contact with the roadway.
- the wall 20 comprises a combination of micro roughness and macro roughness (the latter having the form of ribs being represented schematically by the lines 310 and 410). In the case described with FIG.
- micro roughnesses are identical to those obtained by molding with the strip described with the support of FIG. 1.
- the combination of mechanical meshing by the presence of corrugations, micro roughness and macro roughness as defined here gives the tire provided with a tread according to the invention further improved performance and in particular when putting in anti-lock or traction control system.
- the series of reliefs molded on the walls delimiting an incision may have, seen in projection on a flat surface tangent to one of the walls, non-rectilinear traces in particular circular shapes concentric or not, zigzag shapes, wavy shapes, etc.
- the relief lines can be formed by sections of lines forming kinds of discontinuous lines, the space separating each section being less than the average length of said sections.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Tyre Moulding (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02782823A EP1444104B1 (fr) | 2001-10-11 | 2002-10-04 | Bande de roulement comportant des incisions et lamelle pour mouler ces incisions |
| JP2003536045A JP2005505456A (ja) | 2001-10-11 | 2002-10-04 | 切り込みを備えたトレッド、およびこれらの切り込みを成形する層板 |
| DE60222161T DE60222161T2 (de) | 2001-10-11 | 2002-10-04 | Reifenlauffläche mit einschnitten und zur formung der einschnitte verwendetes messer |
| US10/820,860 US7225844B2 (en) | 2001-10-11 | 2004-04-09 | Tread comprising incisions and lamella for molding these incisions |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0113137 | 2001-10-11 | ||
| FR01/13137 | 2001-10-11 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/820,860 Continuation US7225844B2 (en) | 2001-10-11 | 2004-04-09 | Tread comprising incisions and lamella for molding these incisions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003033281A1 true WO2003033281A1 (fr) | 2003-04-24 |
Family
ID=8868201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2002/011112 Ceased WO2003033281A1 (fr) | 2001-10-11 | 2002-10-04 | Bande de roulement comportant des incisions et lamelle pour mouler ces incisions |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7225844B2 (fr) |
| EP (1) | EP1444104B1 (fr) |
| JP (1) | JP2005505456A (fr) |
| KR (1) | KR20050033526A (fr) |
| CN (1) | CN1313290C (fr) |
| AT (1) | ATE371547T1 (fr) |
| DE (1) | DE60222161T2 (fr) |
| WO (1) | WO2003033281A1 (fr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2008009696A1 (fr) * | 2006-07-21 | 2008-01-24 | Carnehammar, Lars Bertil | Pneu avec surface interne dotée d'une nanostructure |
| CN101678723B (zh) | 2007-05-29 | 2011-10-26 | 株式会社普利司通 | 充气轮胎 |
| WO2009082394A1 (fr) * | 2007-12-21 | 2009-07-02 | Societe De Technologie Michelin | Mécanismes d'éjection d'objets d'une bande de roulement de pneumatique |
| JP5117238B2 (ja) * | 2008-03-25 | 2013-01-16 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
| EP2412792A1 (fr) | 2010-07-29 | 2012-02-01 | The Procter & Gamble Company | Composition de détergent liquide |
| HUP1100389A2 (en) * | 2011-07-19 | 2013-03-28 | Tauform Abroncsformagyarto Kft | Blades for producing sipes, tires with sipes, method for forming blades |
| FR3022830B1 (fr) * | 2014-06-30 | 2017-05-19 | Michelin & Cie | Element de moule pour pneumatique comportant une texture a fort contraste |
| FR3022831B1 (fr) * | 2014-06-30 | 2017-03-03 | Michelin & Cie | Insert de moule pour pneumatique comportant une texture a fort contraste |
| FR3027256A1 (fr) * | 2014-10-21 | 2016-04-22 | Michelin & Cie | Dispositif de protection dun flanc de pneu |
| JP6472023B2 (ja) | 2014-12-25 | 2019-02-20 | Toyo Tire株式会社 | 空気入りタイヤ及びその成形型 |
| FR3044969B1 (fr) * | 2015-12-13 | 2018-07-13 | Compagnie Generale Des Etablissements Michelin | Bande de roulement de pneumatique comportant des incisions |
| DE102020215900A1 (de) | 2020-12-15 | 2022-06-15 | Continental Reifen Deutschland Gmbh | Fahrzeugluftreifen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3608602A (en) * | 1968-12-03 | 1971-09-28 | Uniroyal Inc | Stone rejecting tire tread and mold insert therefor |
| EP0564435A1 (fr) * | 1992-04-03 | 1993-10-06 | Semperit Reifen Aktiengesellschaft | Bandage pneumatique pour véhicule |
| FR2703002A1 (fr) * | 1993-03-25 | 1994-09-30 | Michelin & Cie | Bande de roulement pour pneumatique radial ayant des éléments en relief pourvus d'incisions. |
| JPH08175115A (ja) * | 1994-12-22 | 1996-07-09 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
| JPH1080923A (ja) * | 1996-09-09 | 1998-03-31 | Bridgestone Corp | 空気入りタイヤおよび該空気入りタイヤの加硫用金型 |
| JP2001219716A (ja) * | 1999-11-30 | 2001-08-14 | Ohtsu Tire & Rubber Co Ltd :The | 空気入りタイヤ |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3692090A (en) * | 1970-07-20 | 1972-09-19 | Goodyear Tire & Rubber | Method of making a vented tire mold |
| FR2612129B1 (fr) * | 1987-03-10 | 1989-09-29 | Michelin & Cie | Bande de roulement pour pneumatique radial dont les elements en relief sont pourvus d'incisions presentant des traces en ligne brisee ou ondulee dans le sens de leurs profondeurs |
| JPH02310108A (ja) * | 1989-05-24 | 1990-12-25 | Toyo Tire & Rubber Co Ltd | 空気入りタイヤのトレッド外皮 |
| FR2722144B1 (fr) * | 1994-07-05 | 1996-09-27 | Michelin & Cie | Bande de roulement pour pneumatique |
| US6116310A (en) * | 1996-07-24 | 2000-09-12 | Bridgestone Corporation | Pneumatic tire |
| JP2001071330A (ja) * | 1999-09-07 | 2001-03-21 | Bridgestone Corp | 空気入りタイヤ及びモールド |
| JP2002192916A (ja) * | 2000-12-22 | 2002-07-10 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及び空気入りタイヤ製造用金型 |
| JP3811045B2 (ja) * | 2001-03-27 | 2006-08-16 | 日本碍子株式会社 | サイプブレード成形用金型及びその製造方法 |
-
2002
- 2002-10-04 EP EP02782823A patent/EP1444104B1/fr not_active Expired - Lifetime
- 2002-10-04 JP JP2003536045A patent/JP2005505456A/ja active Pending
- 2002-10-04 WO PCT/EP2002/011112 patent/WO2003033281A1/fr not_active Ceased
- 2002-10-04 DE DE60222161T patent/DE60222161T2/de not_active Expired - Lifetime
- 2002-10-04 AT AT02782823T patent/ATE371547T1/de not_active IP Right Cessation
- 2002-10-04 KR KR1020047005153A patent/KR20050033526A/ko not_active Withdrawn
- 2002-10-04 CN CNB028200365A patent/CN1313290C/zh not_active Expired - Fee Related
-
2004
- 2004-04-09 US US10/820,860 patent/US7225844B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3608602A (en) * | 1968-12-03 | 1971-09-28 | Uniroyal Inc | Stone rejecting tire tread and mold insert therefor |
| EP0564435A1 (fr) * | 1992-04-03 | 1993-10-06 | Semperit Reifen Aktiengesellschaft | Bandage pneumatique pour véhicule |
| FR2703002A1 (fr) * | 1993-03-25 | 1994-09-30 | Michelin & Cie | Bande de roulement pour pneumatique radial ayant des éléments en relief pourvus d'incisions. |
| JPH08175115A (ja) * | 1994-12-22 | 1996-07-09 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
| JPH1080923A (ja) * | 1996-09-09 | 1998-03-31 | Bridgestone Corp | 空気入りタイヤおよび該空気入りタイヤの加硫用金型 |
| JP2001219716A (ja) * | 1999-11-30 | 2001-08-14 | Ohtsu Tire & Rubber Co Ltd :The | 空気入りタイヤ |
Non-Patent Citations (3)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11 29 November 1996 (1996-11-29) * |
| PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30) * |
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25 12 April 2001 (2001-04-12) * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE371547T1 (de) | 2007-09-15 |
| CN1313290C (zh) | 2007-05-02 |
| KR20050033526A (ko) | 2005-04-12 |
| DE60222161D1 (de) | 2007-10-11 |
| JP2005505456A (ja) | 2005-02-24 |
| EP1444104A1 (fr) | 2004-08-11 |
| EP1444104B1 (fr) | 2007-08-29 |
| CN1568266A (zh) | 2005-01-19 |
| DE60222161T2 (de) | 2008-06-12 |
| US20040187993A1 (en) | 2004-09-30 |
| US7225844B2 (en) | 2007-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2013037B1 (fr) | Incision de bande de roulement comprenant des parties de blocage | |
| CA2428572C (fr) | Bande de roulement de pneumatique | |
| EP1758743B1 (fr) | Bande de roulement ayant des incisions zigzag et lames pour le moulage de telles incisions | |
| EP2203318B1 (fr) | Bande de roulement de pneu comprenant des plots de gomme pourvus d'encoche. | |
| CA2351781C (fr) | Bande de roulement pour pneumatique portant de lourdes charges | |
| EP1444104B1 (fr) | Bande de roulement comportant des incisions et lamelle pour mouler ces incisions | |
| US6026875A (en) | Vehicle tire with a tread exhibiting sipes substantially running in the axial direction | |
| EP2895338A1 (fr) | Bande de roulement et pneu pour poids lourd | |
| EP1901929B1 (fr) | Bande de roulement comportant une sculpture avec des incisions | |
| EP3325284A1 (fr) | Bande de roulement pour pneu de poids lourd ameliorant le bruit en roulage | |
| FR2790717A1 (fr) | Sculpture de bande de roulement et moule | |
| EP1097826B1 (fr) | Motif de sculpture d'une bande de roulement | |
| WO2001060642A1 (fr) | Bande de roulement de pneumatique | |
| EP3386776B1 (fr) | Bande de roulement de pneumatique comportant des incisions | |
| EP2825399B1 (fr) | Bande de roulement de grande épaisseur pour pneu de génie civil | |
| WO2022090651A1 (fr) | Bande de roulement de pneumatique pour véhicule poids lourd à robustesse améliorée | |
| EP3898279B1 (fr) | Bande de roulement comportant des cavites cachees et des rainures | |
| FR3130691A1 (fr) | Pneumatique présentant un compromis de performances entre adhérence sur neige et bruit de roulement | |
| WO2025082834A1 (fr) | Pneumatique pour véhicule poids lourd avec une bande de roulement à usure améliorée | |
| EP3383673A1 (fr) | Géométrie de blocs d'une bande de roulement pour pneu | |
| BE903080A (fr) | Pneumatique a proprietes ameliorees et procede pour sa production. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VN YU ZA ZM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2002782823 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020047005153 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10820860 Country of ref document: US Ref document number: 20028200365 Country of ref document: CN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2003536045 Country of ref document: JP |
|
| WWP | Wipo information: published in national office |
Ref document number: 2002782823 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2002782823 Country of ref document: EP |