WO2019044514A1 - Bandage pneumatique - Google Patents

Bandage pneumatique Download PDF

Info

Publication number
WO2019044514A1
WO2019044514A1 PCT/JP2018/030389 JP2018030389W WO2019044514A1 WO 2019044514 A1 WO2019044514 A1 WO 2019044514A1 JP 2018030389 W JP2018030389 W JP 2018030389W WO 2019044514 A1 WO2019044514 A1 WO 2019044514A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
extending
circumferential direction
protrusion
pneumatic tire
Prior art date
Application number
PCT/JP2018/030389
Other languages
English (en)
Japanese (ja)
Inventor
智一 安永
二朗 谷口
Original Assignee
Ｔｏｙｏ Ｔｉｒｅ株式会社
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 Ｔｏｙｏ Ｔｉｒｅ株式会社 filed Critical Ｔｏｙｏ Ｔｉｒｅ株式会社
Priority to RU2020106012A priority Critical patent/RU2748524C1/ru
Priority to CN201880051800.2A priority patent/CN111094017B/zh
Priority to CA3073189A priority patent/CA3073189C/fr
Publication of WO2019044514A1 publication Critical patent/WO2019044514A1/fr

Links

Images

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
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • 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
    • 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

Definitions

  • the present invention relates to a pneumatic tire.
  • the present invention not only has the anti-traumatic performance and the cooling performance, but also can enhance the rigidity of the auxiliary rib to improve the traction performance, and can suppress the amount of longitudinal deflection of the side portion while improving the snow removal performance in the lateral grooves.
  • An object is to provide a pneumatic tire.
  • One aspect of the present invention is A plurality of shoulder blocks provided in the side portion and extending in the circumferential direction of the tire, and a plurality of shoulder blocks partitioned by lateral grooves extending in the lateral direction of the tire and arranged in parallel in the circumferential direction of the tire; An auxiliary rib provided on the side portion and extending in the tire circumferential direction along the shoulder block; A projection provided on the side portion and extending from the auxiliary rib into the lateral groove; Equipped with
  • the protrusion protects the side portion, and the rigidity of the reinforcing rib can be enhanced to improve the traction performance.
  • the projections allow the air passing through the surface to be turbulent and exhibit cooling performance. The projections also function to properly discharge the snow that has entered the lateral grooves.
  • the projections have different dimensions of projection into the lateral grooves, and include first and second projections alternately arranged in the tire circumferential direction.
  • the protrusion preferably has a width that gradually decreases toward the tip.
  • the projection has an inclined surface that approaches the bottom of the lateral groove as it goes to the tip.
  • the projection extending from the reinforcing rib into the lateral groove is formed, not only the trauma resistance and the cooling performance are improved, but also the rigidity of the reinforcing rib is enhanced to exert the traction performance, It is easier to snow from
  • FIG. 1 Partially enlarged view of Figure 2 Longitudinal section of the first projection of FIG. 3A Longitudinal cross-sectional view of the second protrusion of FIG. 3A
  • FIG. 1 is a perspective view showing a part of the pneumatic tire according to the present embodiment. Although this pneumatic tire is not illustrated, it has a structure in which a carcass is bridged between a pair of bead cores, a belt is wound around the outer periphery of the middle portion of the carcass and reinforced, and the tread portion 1 is disposed on the tire outer diameter side. . In FIG. 1, the sipe 9 formed on the land portion 3 of the tread portion 1 is omitted.
  • FIG. 2 is a partially developed view showing a tread pattern of the pneumatic tire shown in FIG.
  • the tread pattern includes a tread portion 1 in contact with the road surface and side portions 2 on both sides thereof.
  • the center of the tire width direction (indicated by arrow W in FIG. 2) is connected to the tire circumferential direction (indicated by arrow R in FIG. 2), and from there the tire circumference
  • the tire extends in the tire width direction at predetermined intervals in the direction.
  • a portion of the land portion 3 connected in the tire circumferential direction at the center in the tire width direction is a center rib 4. Further, in the land portion 3, portions extending in the tire width direction are the center block portion 5 and the shoulder block 6.
  • the center block portion 5 and the shoulder block 6 are formed at predetermined intervals in the tire circumferential direction, and communicate with the lateral grooves 7 inclined in the tire circumferential direction toward the outer side in the tire width direction and the lateral grooves adjacent in the tire circumferential direction A groove 8 is formed.
  • the lateral groove 7 comprises a first lateral groove 7a and a second lateral groove 7b wider than the first lateral groove.
  • the first lateral grooves 7a and the second lateral grooves 7b are alternately arranged in the tire circumferential direction. Further, the positions where the lateral grooves 7 are formed are shifted in the tire width direction and the tire circumferential direction on both sides of the center line O (tire center line) in the tire width direction.
  • the communication groove 8 includes a first communication groove 8a formed on the tire center line side and a second communication groove 8b formed on the outer side in the tire width direction.
  • the first communication grooves 8a and the second communication grooves 8b are alternately formed in the tire circumferential direction.
  • the first center block portion 5a and the first shoulder block 6a are separated by the first communication groove 8a.
  • a second center block portion 5b longer than the first center block portion 5a and a second shoulder block 6b shorter than the first shoulder block 6a are separated by the second communication groove 8b.
  • a plurality of sipes 9 are formed in the center rib 4 and the center block portion 5 at predetermined intervals so as to intersect the extending direction.
  • Each sipe 9 is comprised by the linear part 9a connected to the horizontal groove 7 of both sides, and the waveform part 9b which connects linear parts.
  • sipes 9 are formed in three rows along the extending direction. In each sipe 9, one straight portion communicates with the communication groove 8, and the end of the other straight portion is located at the boundary between the tread portion 1 and the side portion 2.
  • an auxiliary rib 10 annularly connected in the tire circumferential direction is formed.
  • Protrusions 11 extending from the auxiliary rib 10 toward the respective lateral grooves 7 are respectively formed.
  • the protrusion 11 includes a first protrusion 11a extending in the first lateral groove and a second protrusion 11b extending in the second lateral groove.
  • the first protrusion 11a has a reduced projection dimension L1 (the length in the tire outer diameter direction from the inner peripheral edge of the auxiliary rib 10) into the first lateral groove 7a.
  • the protrusion dimension L1 is 5 to 50 mm (here, 20 mm).
  • the height H (height from the surface of the side portion 2) of the first protrusion 11a is the same height as the auxiliary rib 10, and is 0.5 to 10 mm (here, 1.2 mm).
  • An inclined surface 11c gradually approaching the bottom of the lateral groove 7 is formed at the end of the first projection 11a.
  • the angle ⁇ between the inclined surface 11c and the upper surface 11d is 10 to 80 ° (here, 35 °).
  • the first protrusion 11a is gradually narrowed toward the tip, and the angle ⁇ 1 between the two side surfaces is 3 to 30 ° (here, 14 °).
  • the angle ⁇ 1 is set larger than the angle ⁇ 2 formed by the side portions 2 on both side surfaces of the first lateral groove 7a.
  • the formation range of the inclined surface 11c is a range from the tip of the first protrusion 11a to the length L2.
  • the length L2 is 3 to 50 mm (here, 7.5 mm).
  • the width dimension w1 of the tip portion of the first protrusion 11a is 1 to 20 mm (here, 1.8 mm), and the width dimension w2 of the first horizontal groove 7a at that position is 3 to 30 mm (here, 9.9) mm).
  • the center line C1 of the first protrusion 11a substantially coincides with the center line C2 of the first lateral groove 7a.
  • the second protrusion 11b has a large protrusion dimension L3 from the auxiliary rib 10 as compared to the first protrusion, and extends to the vicinity of the boundary position between the tread portion 1 and the side portion 2.
  • the protrusion dimension L3 is 10 to 70 mm (here, 26 mm).
  • the height H of the second protrusion 11 b is the same as that of the first protrusion 11 a.
  • an inclined surface 11e similar to the first protrusion 11a is formed at the tip end portion of the second protrusion 11b.
  • the angle ⁇ between the inclined surface 11e and the upper surface 11f is 10 to 80 ° (here, 40 °).
  • the second protrusion 11b is gradually narrowed toward the tip, and the angle ⁇ 3 between the side surfaces is 3 to 30 ° (here, 9 °).
  • the angle ⁇ 3 is set to be larger than the angle ⁇ 4 formed by the side portions 2 on both sides of the second lateral groove 7b.
  • the formation range of the inclined surface 11e is a range from the tip of the second protrusion 11b to the length L4.
  • the length L4 is 5 to 60 mm (here, 13 mm).
  • the width dimension w3 of the tip portion of the second projection 11b is 1 to 20 mm (here, 2.2 mm), and the width dimension w4 of the second horizontal groove 7b at that position is 3 to 30 mm (here, 10.2) mm).
  • the center line C3 of the second protrusion 11b substantially coincides with the center line C4 of the second lateral groove 7b.
  • the first shoulder blocks 6a and the second shoulder blocks 6b having different lengths are formed.
  • the rigidity balance at the side portion 2 can be made appropriate.
  • shoulder stiffness is different between shoulder blocks 6a and 6b due to differences in length, so-called heel and toe wear is likely to occur during traveling, but the first shoulder block 6a and the second shoulder 11b are made by the first projection 11a and the second projection 11b.
  • the rigidity of the shoulder block 6b can be enhanced to make it difficult to deform, and the occurrence of heel and toe wear can be suppressed.
  • the decrease in the rigidity is suppressed by the projections 11, so that a desired cornering performance can be obtained.
  • each projection 11 is gradually narrowed toward the tip to form the inclined surface 11 c at the tip portion, even when snow remains in the lateral groove 7, the side when the tread portion 1 is in contact with the ground By the deformation of the part 2, the projections 11 can be made to enter the bottom side of the snow in the lateral groove 7 and the snow can be smoothly removed.
  • a convex portion 12 is formed at an outer end in the tire width direction of each shoulder block 6.
  • the convex part 12 is comprised by the saw-tooth-shaped 1st convex part 12a, and the two 2nd convex parts 12b which made the parallelogram formed along each tooth part.
  • the projections 11 suppress the contact of foreign substances such as curbs on the side portions 2, so that excellent anti-traumatic performance can be exhibited.
  • the wind generated when the projection 11 travels can be made to be a turbulent flow, the heat dissipation can be enhanced to exhibit excellent cooling performance.
  • the projections 11 enhance and stiffen the rigidity of the auxiliary rib 10, so that excellent traction performance can be exhibited.

Landscapes

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

Abstract

L'invention concerne un bandage pneumatique comprenant : une pluralité de blocs d'épaulement (6), qui sont disposés dans des sections latérales (2), sont définis par des rainures de communication (8) s'étendant dans une direction circonférentielle du pneu et par des rainures latérales (7) s'étendant dans une direction de la largeur du pneu et sont disposés les uns à côté des autres dans la direction circonférentielle du pneu ; des nervures auxiliaires (10) disposées sur les sections latérales (2) et s'étendant dans la direction circonférentielle du pneu le long des blocs d'épaulement (6) ; et des saillies (11) disposées sur les sections latérales (2) et s'étendant à partir des nervures auxiliaires (10) dans les rainures latérales (7). Grâce à cette configuration, le bandage pneumatique présente une bonne résistance aux dommages externes, de bonnes performances de refroidissement et de bonnes performances de traction, la rigidité des nervures auxiliaires peut être augmentée, les rainures latérales présentent une bonne performance d'évacuation de neige, et une quantité suffisante de déviation longitudinale de la section latérale est assurée.
PCT/JP2018/030389 2017-08-31 2018-08-16 Bandage pneumatique WO2019044514A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2020106012A RU2748524C1 (ru) 2017-08-31 2018-08-16 Пневматическая шина
CN201880051800.2A CN111094017B (zh) 2017-08-31 2018-08-16 充气轮胎
CA3073189A CA3073189C (fr) 2017-08-31 2018-08-16 Bandage pneumatique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017167116A JP6912973B2 (ja) 2017-08-31 2017-08-31 空気入りタイヤ
JP2017-167116 2017-08-31

Publications (1)

Publication Number Publication Date
WO2019044514A1 true WO2019044514A1 (fr) 2019-03-07

Family

ID=65525353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/030389 WO2019044514A1 (fr) 2017-08-31 2018-08-16 Bandage pneumatique

Country Status (5)

Country Link
JP (1) JP6912973B2 (fr)
CN (1) CN111094017B (fr)
CA (1) CA3073189C (fr)
RU (1) RU2748524C1 (fr)
WO (1) WO2019044514A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7298334B2 (ja) * 2019-06-25 2023-06-27 住友ゴム工業株式会社 空気入りタイヤ

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237771A2 (fr) * 1973-07-18 1975-02-14 Kleber Colombes
JPS6277001U (fr) * 1985-11-05 1987-05-16
JPH0377702U (fr) * 1989-11-15 1991-08-06
JP2007203970A (ja) * 2006-02-03 2007-08-16 Yokohama Rubber Co Ltd:The 空気入りタイヤ
US20080210355A1 (en) * 2007-03-02 2008-09-04 Delwyn Lovell Harvey Pneumatic tire
US20090107600A1 (en) * 2007-10-31 2009-04-30 Lisa Marie Missik-Gaffney Grip tire with added puncture protection
JP2010179819A (ja) * 2009-02-06 2010-08-19 Toyo Tire & Rubber Co Ltd 空気入りタイヤ
JP2010264962A (ja) * 2009-05-18 2010-11-25 Toyo Tire & Rubber Co Ltd 空気入りタイヤ
JP2013124046A (ja) * 2011-12-15 2013-06-24 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2015168301A (ja) * 2014-03-05 2015-09-28 横浜ゴム株式会社 空気入りタイヤ
WO2018135484A1 (fr) * 2017-01-17 2018-07-26 横浜ゴム株式会社 Pneu

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06320915A (ja) * 1993-05-18 1994-11-22 Ohtsu Tire & Rubber Co Ltd :The 農用タイヤ
HUP0003214A3 (en) * 1996-12-19 2001-03-28 Michelin Soc Tech Sacrificial ribs for improved tire wear
JP3391692B2 (ja) * 1998-04-03 2003-03-31 住友ゴム工業株式会社 空気入りタイヤ
US6189586B1 (en) * 1998-10-15 2001-02-20 Warren L. Guidry Pneumatic rubber tire for on/off-road vehicles
US7048022B2 (en) * 2003-11-14 2006-05-23 The Goodyear Tire & Rubber Company Tire tread with anti-puncture pads
EP1580033A1 (fr) * 2004-03-26 2005-09-28 Continental Aktiengesellschaft Bandage pneumatique
JP4919258B2 (ja) * 2006-02-15 2012-04-18 株式会社ブリヂストン 空気入りタイヤ
JP4959255B2 (ja) * 2006-08-22 2012-06-20 東洋ゴム工業株式会社 空気入りタイヤ及びその製造方法
JP4938387B2 (ja) * 2006-08-31 2012-05-23 東洋ゴム工業株式会社 空気入りタイヤ
US9174499B2 (en) * 2007-03-12 2015-11-03 Bridgestone Corporation Pneumatic tire
JP5343429B2 (ja) * 2008-07-09 2013-11-13 横浜ゴム株式会社 空気入りタイヤ
JP5771407B2 (ja) * 2011-02-16 2015-08-26 株式会社ブリヂストン 空気入りタイヤ
JP5893370B2 (ja) * 2011-12-06 2016-03-23 東洋ゴム工業株式会社 空気入りラジアルタイヤ
CN102774243B (zh) * 2012-07-31 2014-12-10 厦门正新橡胶工业有限公司 电动自行车用充气轮胎
JP6139843B2 (ja) * 2012-10-05 2017-05-31 株式会社ブリヂストン 空気入りタイヤ
CN203496579U (zh) * 2013-10-29 2014-03-26 正新橡胶（中国）有限公司 一种充气轮胎
EP3118022B1 (fr) * 2014-03-26 2020-05-06 Sumitomo Rubber Industries, Ltd. Pneumatique
JP6291356B2 (ja) * 2014-05-30 2018-03-14 東洋ゴム工業株式会社 空気入りタイヤ
JP6699193B2 (ja) * 2016-01-21 2020-05-27 住友ゴム工業株式会社 空気入りタイヤ
CN106183643B (zh) * 2016-08-18 2018-07-17 赛轮金宇集团股份有限公司 非公路型路面越野车轮胎
JP6443509B1 (ja) * 2017-07-27 2018-12-26 横浜ゴム株式会社 空気入りタイヤ

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237771A2 (fr) * 1973-07-18 1975-02-14 Kleber Colombes
JPS6277001U (fr) * 1985-11-05 1987-05-16
JPH0377702U (fr) * 1989-11-15 1991-08-06
JP2007203970A (ja) * 2006-02-03 2007-08-16 Yokohama Rubber Co Ltd:The 空気入りタイヤ
US20080210355A1 (en) * 2007-03-02 2008-09-04 Delwyn Lovell Harvey Pneumatic tire
US20090107600A1 (en) * 2007-10-31 2009-04-30 Lisa Marie Missik-Gaffney Grip tire with added puncture protection
JP2010179819A (ja) * 2009-02-06 2010-08-19 Toyo Tire & Rubber Co Ltd 空気入りタイヤ
JP2010264962A (ja) * 2009-05-18 2010-11-25 Toyo Tire & Rubber Co Ltd 空気入りタイヤ
JP2013124046A (ja) * 2011-12-15 2013-06-24 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2015168301A (ja) * 2014-03-05 2015-09-28 横浜ゴム株式会社 空気入りタイヤ
WO2018135484A1 (fr) * 2017-01-17 2018-07-26 横浜ゴム株式会社 Pneu

Also Published As

Publication number Publication date
CA3073189C (fr) 2021-12-28
CN111094017B (zh) 2022-02-11
CN111094017A (zh) 2020-05-01
RU2748524C1 (ru) 2021-05-26
JP6912973B2 (ja) 2021-08-04
CA3073189A1 (fr) 2019-03-07
JP2019043310A (ja) 2019-03-22

Similar Documents

Publication Publication Date Title
JP6142930B1 (ja) 空気入りタイヤ
US9555669B2 (en) Pneumatic tire
US20170253090A1 (en) Pneumatic tire
JP2018079741A (ja) タイヤ
US11203234B2 (en) Pneumatic tire
US8333226B2 (en) Pneumatic tire with tread having first axial grooves and circumferential grooves including wavy circumferential groove
US9469159B2 (en) Pneumatic tire
US20190030957A1 (en) Pneumatic Tire
JP4548534B2 (ja) 空気入りタイヤ
US10155418B2 (en) Heavy duty pneumatic tire
JP5440584B2 (ja) 空気入りタイヤ
US20080271826A1 (en) Pnuematic tire
US11472231B2 (en) Pneumatic tire
US8162015B2 (en) Pneumatic tire having asymmetrical tread pattern
JP2019081510A (ja) 空気入りタイヤ
JP5923917B2 (ja) 空気入りタイヤ
KR101631758B1 (ko) 커프 구조 및 그를 포함하는 공기입 타이어
JP2000225815A (ja) 空気入りタイヤ
WO2016027647A1 (fr) Bandage pneumatique
JP2011240750A (ja) 空気入りタイヤ
US11433710B2 (en) Pneumatic tire
CN109421438A (zh) 充气轮胎
US20180134087A1 (en) Tire
WO2019044514A1 (fr) Bandage pneumatique
KR20150008551A (ko) 공기입 래디얼 타이어

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: 18852373

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3073189

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18852373

Country of ref document: EP

Kind code of ref document: A1