WO2012093000A1 - Pneumatiques pour véhicule, munis de rainures ménagées dans la bande de roulement et tôle lamellaire pour façonner une rainure dans la bande de roulement - Google Patents

Pneumatiques pour véhicule, munis de rainures ménagées dans la bande de roulement et tôle lamellaire pour façonner une rainure dans la bande de roulement Download PDF

Info

Publication number
WO2012093000A1
WO2012093000A1 PCT/EP2011/071105 EP2011071105W WO2012093000A1 WO 2012093000 A1 WO2012093000 A1 WO 2012093000A1 EP 2011071105 W EP2011071105 W EP 2011071105W WO 2012093000 A1 WO2012093000 A1 WO 2012093000A1
Authority
WO
WIPO (PCT)
Prior art keywords
tread
pneumatic vehicle
vehicle tire
pocket
bead
Prior art date
Application number
PCT/EP2011/071105
Other languages
German (de)
English (en)
Inventor
Michael Seidel
Paul Pape
Original Assignee
Continental Reifen Deutschland 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
Application filed by Continental Reifen Deutschland Gmbh filed Critical Continental Reifen Deutschland Gmbh
Publication of WO2012093000A1 publication Critical patent/WO2012093000A1/fr

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
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1259—Depth of the sipe
    • B60C11/1263—Depth of the sipe different within the same sipe
    • 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
    • B60C11/0306—Patterns comprising block rows or discontinuous ribs
    • 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
    • B60C11/1272—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

Definitions

  • the invention relates to a pneumatic vehicle tire with a tread with in
  • Tread ribs which are traversed by at least substantially parallel to each other and at least substantially running in the tread transverse direction incisions, which in the radial direction, starting at the tread outer side, a base portion and in the central region of the base portion of this subsequent
  • the invention further relates to a slat plate for
  • the invention is therefore an object of the invention to improve a pneumatic vehicle tire of the type mentioned in this regard.
  • the pocket portion is circulated by a bead-like widening. Due to the inventive design of the pocket portions of the incisions with a circumferential bead-like widening the forces acting in the recess base of the pocket portions when rolling the tire forces are on the one hand reduced and on the other hand evenly distributed. This reduces the risk of tearing in the pockets.
  • the measure according to the invention opens up the possibility, depending on the design of the incisions and the bead-like widening of the pocket sections and their dimensioning influence on the profile stiffness and thus on the abrasion properties and on the
  • a lamination sheet according to the invention which is fastened in a molded part or in a mold segment of a tire vulcanization mold, an incision in
  • Tread of a green tire ausformt and having an incision in the tread forming sheet metal part and an anchored in the molding or mold segment sheet metal part is characterized in that the incision forming sheet metal part has a portion which is circulated by a bead-like thickening.
  • the base portion may have a width between 0.4 mm and 5 mm, the
  • Pocket section a width between 0.4 mm and 0.8 mm.
  • both the base portion and the pocket portion preferably have a constant width.
  • the base section can be the same width as the
  • Have pocket portion or the pocket portion may have a smaller width than the base portion.
  • the selected widths of the pocket portion and the base portion there are different possibilities for influencing certain properties, for example the circumferential rigidity, the tread wear and the like.
  • the bead-like widening in the pocket portion is advantageously carried out such that it has a radial height and at its widest point an axial width, which in each case 1.5 to 5 times the width of the pocket portion on Approach of broadening. Within these ranges can be the
  • the rigidity of the profile positive - the tread ribs or the tread blocks - can be additionally influenced by the fact that the incision base of the sections of the base section with a bead-like widening, analogous to the bead-like
  • the extent of the positive effects which can be achieved with incisions made according to the invention is also dependent on the extent to which the radial depth of the base portion and the pocket portion extend. In this context, it is particularly favorable if the base section extends to a depth of 30% to 70% of the tread depth and if the pocket section, which adjoins the base section in the radial direction, extends at most to the intended tread depth.
  • the lamella plate according to the invention for shaping incisions made in accordance with the invention is designed in particular such that the portion which is surrounded by a bead-like thickening and forms the pocket portion in the tread has a smaller thickness than the sheet metal part which forms the base portion.
  • Lamellar sheets are provided according to the invention with an embossed structure, they can be removed from the mold particularly easily after the vulcanization of the tire. Due to an embossed structure in the lamella sheet, different three-dimensional structures are created in the cut walls, depending on the embossing. Further features, advantages and details of the invention will now be explained in more detail with reference to the schematic drawing illustrating several embodiments. 1 shows a plan view of some profile ribs of a tread of a pneumatic vehicle tire with an embodiment of the invention,
  • FIG. 1 is an oblique view of a section of a profile rib of FIG.
  • FIG. 4 to Fig. 7 further embodiments of the invention in to Fig. 2 analog
  • Fig. 8 is a lamella plate.
  • Fig. 1 shows a plan view of the tread of a pneumatic vehicle tire in
  • Circumferential direction (see double arrow U in Fig. 1) extending profile ribs 2, 2 'of a tread 1.
  • the tread ribs 2, 2' are circumferential in the circumferential direction
  • tread ribs instead of tread ribs also tread block rows can be provided in the tread 1.
  • Each recess 6 has, as shown in Fig. 2, in the radial direction two sections, a base section 6a and a pocket section 6b.
  • Base portion 6a extends over the entire longitudinal extent of the incision 6 and has a particular constant width, which may be between 0.4 mm and 5 mm. In the embodiment variants shown in the drawing figures, the base portion 6a has a width of about 1.5 mm to 2 mm. In the middle part of the
  • Base portion 6a connects centrally and in the radial direction over a length of one third to three quarters of the longitudinal extent of the base portion 6a of the pocket portion 6b, whose width is between 0.4 mm and 0.8 mm.
  • the base portion 6a may be made the same width as or wider than the pocket portion 6b.
  • the pocket portion 6b is narrower than the base portion 6a and forms a U-shaped pocket in the tread rubber.
  • Sectional views in Figures 3a, 3b and 3c show the described embodiment of the base portion 6a and the pocket portion 6b.
  • the base portion 6a extends to a depth t which preferably corresponds to between 20% and 70% of the tread depth - the depth of the circumferential grooves 4.
  • the pocket portion 6b extends to a depth TA which corresponds at most to the tread depth.
  • the pocket portion 6b is surrounded by a bead-shaped widening 8, which in the radial direction has a height ai of 1.5 to 5 times the width b of the pocket portion 6b at the base of the bead-like widening 8, the largest width a 2 of the bead-like Broadening 8 is also on the order of 1.5 to 5 times the width b.
  • Pocket section 6b is the lower the height ai and the maximum width a 2 of the widening 8 are selected.
  • the bead-like widening 8 is preferably circular in cross-section, but may have any other, in particular rounded, cross-sectional shape, for example a teardrop shape, an oval shape and the like.
  • FIG. 4 shows an incision 6 ', which is a variant of that shown in FIG.
  • FIG. 6 corresponds, except for the embodiment of the pocket section 6" b, which forms a V-shaped pocket, that according to FIG. 2.
  • FIG. 7 also shows an incision 6 "', which has a variant of the incision 6 shown in FIG. 2 and has a pocket portion 6 "'b, which forms a pocket whose outer contour resembles a funnel cross-section.
  • the pocket sections 6'b, 6 "b and 6" 'b are also surrounded by a bead-like widening 8 whose radial extension and greatest width depend on the width b of the pocket sections 6'b, 6 "b, 6"' b between corresponding to 1.5 and 5 times the width b.
  • the incisions may extend zigzag or wavy in plan view at least in sections.
  • Notches made in accordance with the invention are formed in a vulcanization mold in a known manner during vulcanization of the green tire.
  • Tread-forming mold segments or moldings of the vulcanization mold are anchored lamellar plates, which represent the positives of the incisions to be formed and are shaped or embossed so that the protruding from the mold sheet metal part has a portion which is shaped according to the manufactured bag portion and a bead-like thickening is circulating.
  • FIG. 8 shows, by way of example and schematically, a lamination sheet 5 which forms the cut shown in FIG. 2.
  • the protruding from the mold and penetrating into the tread of the green tire sheet metal part is denoted by 5a and has a rectangular portion 5b, which is peripherally surrounded by a bead-like thickening 3.
  • the lamellar plates in not shown but known Way be provided with embossed structures. Laminated sheets with embossed structures are also easier to remove than those with smooth surfaces.
  • Incisions 6 designed in accordance with the invention help to reduce the forces acting on the tire during rolling, on the one hand, and to distribute it more evenly on the other hand. This reduces the risk of cracking in the pocket portions of the incisions.
  • Incisions 6 designed in accordance with the invention help to reduce the forces acting on the tire during rolling, on the one hand, and to distribute it more evenly on the other hand. This reduces the risk of cracking in the pocket portions of the incisions.
  • Abrasion properties and traction in the life cycle of the tire can be adjusted specifically.

Landscapes

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

Abstract

L'invention concerne un pneumatique pour véhicule, comprenant une bande de roulement qui présente des éléments en relief répartis en périphérie, en particulier des rangées de pavés ou des nervures (2) sculptés, qui sont traversés respectivement par des rainures au moins sensiblement parallèles et s'étendant au moins essentiellement dans la direction de la bande de roulement, lesdites rainures présentant dans le sens radial, à partir de la face extérieure de la bande de roulement, un segment de base (6a) et un segment de poche (6b) jouxtant le précédent dans la zone médiane dudit segment de base (6a). Le segment de poche (6b) est entouré d'une partie évasée (8) se présentant sous forme de bourrelet.
PCT/EP2011/071105 2011-01-04 2011-11-28 Pneumatiques pour véhicule, munis de rainures ménagées dans la bande de roulement et tôle lamellaire pour façonner une rainure dans la bande de roulement WO2012093000A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011000035A DE102011000035A1 (de) 2011-01-04 2011-01-04 Fahrzeugluftreifen mit Einschnitten im Laufstreifen und Lamellenblech zur Ausformung eines Einschnittes im Laufstreifen
DE102011000035.6 2011-01-04

Publications (1)

Publication Number Publication Date
WO2012093000A1 true WO2012093000A1 (fr) 2012-07-12

Family

ID=45099070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/071105 WO2012093000A1 (fr) 2011-01-04 2011-11-28 Pneumatiques pour véhicule, munis de rainures ménagées dans la bande de roulement et tôle lamellaire pour façonner une rainure dans la bande de roulement

Country Status (2)

Country Link
DE (1) DE102011000035A1 (fr)
WO (1) WO2012093000A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3219512A1 (fr) * 2016-03-18 2017-09-20 Sumitomo Rubber Industries, Ltd. Pneumatique
CN109421440A (zh) * 2017-08-31 2019-03-05 东洋橡胶工业株式会社 充气轮胎
CN109421441A (zh) * 2017-08-31 2019-03-05 东洋橡胶工业株式会社 充气轮胎
CN114144318A (zh) * 2019-07-25 2022-03-04 大陆轮胎德国有限公司 车辆充气轮胎

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0195913A (ja) * 1987-10-09 1989-04-14 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JPH02303908A (ja) * 1989-05-18 1990-12-17 Toyo Tire & Rubber Co Ltd 幅の異なる部分を有するサイプを備えた空気入りタイヤ
JPH031910A (ja) * 1989-05-30 1991-01-08 Toyo Tire & Rubber Co Ltd 空気入りタイヤ成形用金型
WO2011049062A1 (fr) * 2009-10-20 2011-04-28 株式会社ブリヂストン Bandage pneumatique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0195913A (ja) * 1987-10-09 1989-04-14 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JPH02303908A (ja) * 1989-05-18 1990-12-17 Toyo Tire & Rubber Co Ltd 幅の異なる部分を有するサイプを備えた空気入りタイヤ
JPH031910A (ja) * 1989-05-30 1991-01-08 Toyo Tire & Rubber Co Ltd 空気入りタイヤ成形用金型
WO2011049062A1 (fr) * 2009-10-20 2011-04-28 株式会社ブリヂストン Bandage pneumatique

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3219512A1 (fr) * 2016-03-18 2017-09-20 Sumitomo Rubber Industries, Ltd. Pneumatique
CN107199834A (zh) * 2016-03-18 2017-09-26 住友橡胶工业株式会社 充气轮胎
US10486472B2 (en) 2016-03-18 2019-11-26 Sumitomo Rubber Industries, Ltd. Pneumatic tire
CN107199834B (zh) * 2016-03-18 2020-08-11 住友橡胶工业株式会社 充气轮胎
CN109421440A (zh) * 2017-08-31 2019-03-05 东洋橡胶工业株式会社 充气轮胎
CN109421441A (zh) * 2017-08-31 2019-03-05 东洋橡胶工业株式会社 充气轮胎
CN109421441B (zh) * 2017-08-31 2020-12-08 东洋橡胶工业株式会社 充气轮胎
CN109421440B (zh) * 2017-08-31 2021-01-15 东洋橡胶工业株式会社 充气轮胎
CN114144318A (zh) * 2019-07-25 2022-03-04 大陆轮胎德国有限公司 车辆充气轮胎
CN114144318B (zh) * 2019-07-25 2024-02-27 大陆轮胎德国有限公司 车辆充气轮胎

Also Published As

Publication number Publication date
DE102011000035A1 (de) 2012-07-05

Similar Documents

Publication Publication Date Title
DE102009051278B4 (de) Luftreifen
DE102008039069B4 (de) Luftreifen
DE102010012595B4 (de) Luftreifen
DE102008062610B4 (de) Luftreifen
DE102008024983B4 (de) Luftreifen
DE112014004035B4 (de) Luftreifen
EP1580034B1 (fr) Pneumatique pour vehicule
DE102011079281B4 (de) Luftreifen
EP2531361B1 (fr) Pneu
DE102011105467A1 (de) Luftreifen
DE102009004476B4 (de) Luftreifen
WO2012093000A1 (fr) Pneumatiques pour véhicule, munis de rainures ménagées dans la bande de roulement et tôle lamellaire pour façonner une rainure dans la bande de roulement
DE102009004477B4 (de) Luftreifen
EP3446893B1 (fr) Pneumatique de véhicule
EP0934836B1 (fr) Bandage pneumatique pour véhicule et moule de vulcanisation de pneu muni de lamelles
EP2660081A1 (fr) Profil de bande de roulement dýun pneu de véhicule
EP2803501B1 (fr) Pneu de véhicule
EP3554855B1 (fr) Pneumatique de véhicule
EP2006124B1 (fr) Pneus de véhicule avec des incisions en forme à trois dimensions
EP3890995B1 (fr) Pneumatique de véhicule
EP3612401A1 (fr) Pneumatique de véhicule automobile muni d'une entaille fine dans un élément de bloc de profilé
DE10343614A1 (de) Fahrzeugluftreifen
EP2554404B1 (fr) Profil de bande de roulement d´un pneu de véhicule
DE102020215900A1 (de) Fahrzeugluftreifen
EP2554405A1 (fr) Profil de bande de roulement d´un pneu de véhicule

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11791510

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 11791510

Country of ref document: EP

Kind code of ref document: A1