JPH02303908A - Pneumatic tire provided with sipe having part different in width - Google Patents
Pneumatic tire provided with sipe having part different in widthInfo
- Publication number
- JPH02303908A JPH02303908A JP1125597A JP12559789A JPH02303908A JP H02303908 A JPH02303908 A JP H02303908A JP 1125597 A JP1125597 A JP 1125597A JP 12559789 A JP12559789 A JP 12559789A JP H02303908 A JPH02303908 A JP H02303908A
- Authority
- JP
- Japan
- Prior art keywords
- sipe
- width
- tread
- narrow
- tire
- 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.)
- Pending
Links
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 12
- 239000004575 stone Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000723353 Chrysanthemum Species 0.000 description 1
- 235000007516 Chrysanthemum Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B60C11/1272—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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は湿潤路における駆動、制動性能に優れ、且つ偏
摩耗を防止し、或いは石噛を防止しつる空気入りタイヤ
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pneumatic tire that has excellent driving and braking performance on wet roads, and that prevents uneven wear or stone bite.
タイヤのトレッド周面にタイヤ周方向に沿って延びる主
溝や、主溝から分岐してのびる横溝等のトレッド溝につ
いては、特開昭６１−１６６７０８号公報に示すように
、トレッド溝の中に段部を設け、トレッド溝の下半部の
幅を狭くして、トレッド溝の石噛みを防止する・方法、
特公昭５７−９９６７号公報に示すように、横溝の一部
で溝内の下部の幅を極めて狭くして偏摩耗を防止する方
法、特開昭５８−６１００８号公報に示すように、溝幅
がトレッド表面より溝底部で大きい横溝をショルダーリ
ブに配設して、ウェット性能の向上と偏摩耗防止を図る
方法が知られ、トレッド溝については、部分的に幅を変
えて石噛みゃ偏摩耗を防止することが行われている。Regarding tread grooves such as main grooves extending along the tire circumferential direction on the tread circumferential surface of a tire, and lateral grooves branching off from the main grooves, there are A method for preventing stone-grabbing in the tread groove by providing a step and narrowing the width of the lower half of the tread groove;
As shown in Japanese Patent Publication No. 57-9967, a method of preventing uneven wear by extremely narrowing the width of the lower part of the groove in a part of the horizontal groove, and as shown in Japanese Patent Application Publication No. 58-61008, a method of reducing the groove width A known method is to improve wet performance and prevent uneven wear by arranging horizontal grooves in the shoulder ribs that are larger at the bottom of the groove than on the tread surface. Efforts are being made to prevent this.
上記の主溝及び横溝よりなるトレッド溝により区分され
た接地隆起部であるブロックの表面に、略タイヤの幅方
向に沿って、幅の狭い溝、所謂サイプが、主として湿潤
路におけるエツジ効果と排水効果による、駆動、制動性
能の向上を目的として設けられるが、このサイプは、常
に一定の幅のものが用いられ、一枚のサイプの中で部分
的に幅を変えることは全く知られていない。On the surface of the block, which is a ground-contact ridge divided by the tread grooves consisting of the above-mentioned main grooves and lateral grooves, there are narrow grooves, so-called sipes, along the width direction of the tire, mainly for edge effects and drainage on wet roads. This sipe is provided for the purpose of improving driving and braking performance by increasing the effect, but this sipe is always of a constant width, and it is completely unknown that the width can be changed partially within a single sipe. .
従来の一定の狭い幅のサイプでは、接地時の圧力により
、ブロック表面においてサイプが閉じてしまい、湿潤路
におけるエツジ効果及び排水効果が充分発揮できない。With conventional sipes having a constant narrow width, the sipes close on the block surface due to the pressure at the time of ground contact, and the edge effect and drainage effect in the wet path cannot be sufficiently exerted.
サイプの幅を大きくすると接地時に閉鎮され難くなるが
、サイプの両側で摩耗速度に差が生じ、所謂トウアンド
ヒール摩耗が発生する虞があり、又幅の広いサイプはト
レッド溝と同様に石噛みを生じ易く、サイプ底部のクラ
ック発生やベルトの損傷の虞がある。Increasing the width of the sipe will make it more difficult for the sipe to close during ground contact, but there will be a difference in the rate of wear on both sides of the sipe, causing so-called toe-and-heel wear.In addition, wide sipes may be susceptible to stones as well as tread grooves. It is easy to get stuck, and there is a risk of cracking at the bottom of the sipe and damage to the belt.
従って本発明はトウアンドヒール摩耗摩耗等の偏摩耗の
発生や石噛みを防止しつつ、湿潤路における駆動、制動
性能を向上させることができる新規なサイプを備えた空
気入りタイヤを提供することを目的とする。Therefore, it is an object of the present invention to provide a pneumatic tire equipped with novel sipes that can improve driving and braking performance on wet roads while preventing the occurrence of uneven wear such as toe-and-heel wear and stone bite. purpose.
上記目的を達成すべく、本発明者は鋭意研究を重ねた結
果、一枚のサイプの中で幅の広い部分と狭い部分を設け
ることにより、接地時のサイプの全面的な閉鎖を防ぎ、
排水性を確保しつつ、サイプにより区分された小ブロッ
クの動きを抑え、トウアンドヒール摩耗等の偏摩耗を防
止しうろこと、更にトレッド表面におけるサイプ幅を狭
くすることにより、サイプの石嗜みを防止しうることを
見出し、本発明を完成するに至った。In order to achieve the above object, the inventor of the present invention has conducted intensive research and found that by providing a wide part and a narrow part in a single sipe, the sipe is prevented from completely closing when touching the ground.
While ensuring drainage, the movement of the small blocks divided by sipes is suppressed, preventing uneven wear such as toe and heel wear, and by narrowing the sipe width on the tread surface, the sipe's stone taste is reduced. We have discovered that this can be prevented, and have completed the present invention.
即ち、本発明はトレッドの周面にトレッド溝とトレッド
溝により区分された隆起部よりなるブロックを有し、該
ブロックの表面に開口する幅の狭い切込み溝よりなるサ
イプを多数備えた空気入りタイヤにおいて、該サイプが
一枚のサイプ内に、サイプの両側の内壁面間の幅の狭い
狭幅部とその幅の広い広幅部とを有することを特徴とす
る幅の異なる部分を有するサイプを備えた空気入りタイ
ヤを要旨とする。That is, the present invention provides a pneumatic tire having a block on the circumferential surface of the tread consisting of tread grooves and a raised part separated by the tread grooves, and a large number of sipes consisting of narrow cut grooves opening on the surface of the block. , the sipe includes a sipe having portions with different widths, characterized in that the sipe has a narrow portion with a narrow width between the inner wall surfaces on both sides of the sipe and a wide portion with a wide width. This article focuses on pneumatic tires.
次に本発明の内容を図面により詳細に説明する。Next, the content of the present invention will be explained in detail with reference to the drawings.
第１図は本発明のタイヤの一例のトレッドの１つのブロ
ックの斜視図、第２図及び第３図は同Ａ−Ａ及びＢ−Ｂ
断面図、第４図は同Ｃ−Ｃ断面図である。（１）はトレ
ッド周面に略周方向に訃けた主溝であり、主溝（１）と
交わる方向に少なくとも一端が主溝（１）に連通ずる横
溝（２）を設ける。主溝（１）と横溝（２）により区分
されてトレンド表面に隆起するブロック（３）が多数配
列される。各ブロック（３）上には１本または複数本の
サイプ（４）を略タイヤ幅方向に設ける。サイプ（４）
は少なくとも一端が主溝（１）に開口する。各サイプ（
４）はその幅ｄが一様ではなく、一枚のサイプ（４）に
幅ｄの広い広幅部（５）と、幅ｄの狭い狭幅部（６）を
有する。狭幅部（６）の幅ｄ＋は０．２〜０゜６ｍｍ、
広幅Ｂ（５）の幅ｄ２は狭幅部（６）の幅ｄＩの１．５
〜５倍であることが望ましい。FIG. 1 is a perspective view of one block of a tread of an example of the tire of the present invention, and FIGS. 2 and 3 are A-A and B-B of the same.
The sectional view and FIG. 4 are the CC sectional views. (1) is a main groove extending substantially circumferentially on the tread circumferential surface, and a lateral groove (2) is provided in a direction intersecting with the main groove (1), with at least one end communicating with the main groove (1). A large number of blocks (3) are arranged, separated by main grooves (1) and lateral grooves (2), and raised on the trend surface. One or more sipes (4) are provided on each block (3) substantially in the width direction of the tire. Sipe (4)
has at least one end opening into the main groove (1). Each sipe (
4) is not uniform in width d, and has a wide part (5) with a wide width d and a narrow part (6) with a narrow width d in one sipe (4). The width d+ of the narrow part (6) is 0.2 to 0°6 mm,
Width d2 of wide width B (5) is 1.5 of width dI of narrow width part (6)
It is desirable that it be ~5 times.
一枚のサイプ（４）内の広幅部（５）と狭幅部（６）の
配置は種々の配置が可能であり、その配置により異なる
効果が達成されるので、必要に応じて適切な配置を選択
することができる。第１〜４図に示す配置では、サイプ
（４）の内壁面（７）の中央上部に狭幅部（６）を、こ
れを囲む凹字形の部分を広幅部（５）とする。Various arrangements are possible for the wide part (5) and narrow part (6) within a single sipe (4), and different effects can be achieved depending on the arrangement, so appropriate arrangement can be made as necessary. can be selected. In the arrangement shown in FIGS. 1 to 4, a narrow portion (6) is provided at the upper center of the inner wall surface (7) of the sipe (4), and a concave portion surrounding the narrow portion (6) is provided as a wide portion (5).
第５図及び第６図に示す実施態様では、サイプ（４）の
下部に広幅部（５）を、上部に狭幅部（６）を設けてあ
り、第７図及び第８図に示す実施態様ではサイプ（４）
の上部及び下部に横に延びる広幅部（５）を設け、上下
の広幅部（５）に挟まれる部分を狭幅部（６）とする。In the embodiment shown in FIGS. 5 and 6, a wide part (5) is provided at the lower part of the sipe (4) and a narrow part (6) is provided at the upper part, and the embodiment shown in FIGS. Sipe in aspect (4)
A horizontally extending wide portion (5) is provided at the upper and lower portions, and the portion sandwiched between the upper and lower wide portions (5) is defined as a narrow portion (6).
第９図に示すように、サイプ（４）の内壁面（７）の中
央部にのみ狭幅部（６）を設け、その周囲を口字状に広
幅部（５）とすることもできる。或いは第１０図及び第
１１図に示すように、広幅部（５）をＬ字状又はコ字状
に配置することもできる。広幅部（５）と狭幅部（６）
の配置はこれらに限定されないが、サイプ（４）の排水
効果を高めるためには、少なくともサイプ（４）の下部
は、サイプ底（８）からサイプ（４）深さＨの２５％の
高さまでの部分全体を広幅部（５）とするのが望ましい
。As shown in FIG. 9, the narrow part (6) may be provided only in the center of the inner wall surface (7) of the sipe (4), and the wide part (5) may be formed around the narrow part (6) in a mouth shape. Alternatively, as shown in FIGS. 10 and 11, the wide portion (5) may be arranged in an L-shape or a U-shape. Wide part (5) and narrow part (6)
Although the arrangement of the sipes (4) is not limited to these, in order to enhance the drainage effect of the sipes (4), at least the lower part of the sipes (4) should be at a height of 25% of the sipe (4) depth H from the sipe bottom (8). It is desirable that the entire portion be the wide portion (5).
サイプ（４）内壁面（７）における広幅部（５）と狭幅
部（６）の面積は種々選択可能であるが、広幅部（５）
はサイプ（４）内壁面（７）の３０〜８０％とするのが
好ましい。The areas of the wide part (5) and the narrow part (6) on the inner wall surface (7) of the sipe (4) can be selected from various options, but the wide part (5)
is preferably 30 to 80% of the inner wall surface (7) of the sipe (4).
広幅部（５）の面積がこれよりも小さくなると接地時に
サイプ（４）の殆ど全面が閉じてしまい、サイプ（４）
の排水効果が小さくなる。又広幅部（５）の面積がこれ
より大きいと、狭幅部（６）の面積が小さくなり、接地
時に狭幅部（６）でサイプ（４）両面が密着してサイプ
（４）の両側の小ブロック（９）の動きを抑制する摩擦
力が小さくなり、偏摩耗を防止する効果が小さくなる。If the area of the wide part (5) is smaller than this, almost the entire surface of the sipe (4) will close when it touches the ground, causing the sipe (4) to
The drainage effect becomes smaller. If the area of the wide part (5) is larger than this, the area of the narrow part (6) will become smaller, and both sides of the sipe (4) will come into close contact with the narrow part (6) at the time of contact with the ground. The frictional force that suppresses the movement of the small block (9) becomes smaller, and the effect of preventing uneven wear becomes smaller.
サイプ（４）の上部に広幅部（５）を設ける時は狭幅部
（６）の上端までの深さｈは、サイプ（４）深さＨの３
０％以下であることが望ましい。この深さｈが大きいと
、石噛みを生じ易くなり、偏摩耗が発生する虞もある。When the wide part (5) is provided at the top of the sipe (4), the depth h to the top of the narrow part (6) is 3 of the depth H of the sipe (4).
It is desirable that it is 0% or less. If the depth h is large, stone bite is likely to occur, and uneven wear may occur.
狭幅部（６）の下端の位置はサイプ底（８）からサイプ
深さＨの５０％より下にあるのが望ましい。狭幅部〔６
）の下端がこれよりも高い位置にあると、早期に狭幅部
（６）の下端までトレッドゴムが摩耗してしまい、広幅
部（５）のみが残り、サイプ（４）全体の幅を広くした
のと同じ状態になるため、トウアンドヒール摩耗等の偏
摩耗及び石噛みが発生し易くなる。It is desirable that the lower end of the narrow portion (6) be located below 50% of the sipe depth H from the sipe bottom (8). Narrow part [6
) is at a higher position than this, the tread rubber will wear down to the lower end of the narrow part (6) prematurely, leaving only the wide part (5) and making the entire width of the sipe (4) wider. Since the condition is the same as that in the previous process, uneven wear such as toe-and-heel wear and stone encrustation are likely to occur.
第２図に示すように、広幅部（５）は狭幅部（６）から
その内面が両側に拡がるように設けることもできるし、
第１２図に示すように狭幅部（６）の片側に拡がるよう
に設けることも可能である。また狭幅部（６）から広幅
部（５）への移行は階段的に移行する必要はなく連続的
に移行してもよい。一枚のサイプ（４）で狭幅部（６）
を２個所以上に分割して設けることもできる。As shown in FIG. 2, the wide part (5) can be provided so that its inner surface expands from the narrow part (6) to both sides,
As shown in FIG. 12, it is also possible to provide it so as to extend to one side of the narrow portion (6). Further, the transition from the narrow width portion (6) to the wide width portion (5) does not need to be stepped and may be transitioned continuously. Narrow width part (6) with one sipe (4)
It is also possible to divide it into two or more locations.
本発明のタイヤの幅の異なる部分のあるサイプ（４）は
、タイヤの略幅方向に沿って設けるのが、タイヤのウェ
ット性能の向上には望ましいが、タイヤの略周方向に沿
って、或いは周方向に対して斜め方向に設けることも可
能である。It is desirable that the sipes (4) with different width portions of the tire of the present invention be provided along the width direction of the tire in order to improve the wet performance of the tire. It is also possible to provide it in an oblique direction with respect to the circumferential direction.
本発明の幅の異なる部分を有するサイプを備えた空気入
りタイヤによれば、タイヤの接地部で接地圧によりトレ
ッドゴムが変形してサイプ（菊が狭められた時、狭幅部
（６）のみが閉鎖して、広幅部（５）は閉鎖されないた
め、広幅部（５）を通じて貯水性及び排水性が確保され
る。また第１図のごとく、サイプ（４）のトレッド表面
に開口する部分に狭幅部（６）と広幅部（５）が共に存
在する場合は、接地時に狭幅部（６）の開口部が閉鎖さ
れても、広幅部（５）の開口部は閉鎖されないため、広
幅部（５）の開口部のエツジ効果は失われなず、これら
貯水、排水性およびエツジ効果により、タイヤの湿潤路
における駆動、制動性能が向上する。同時に接地時に閉
鎖された狭幅部（６）の摩擦力により、サイプ（４）の
両側の小ブロック（９）のゴムのタイヤ周方向の動きを
抑え、トウアンドヒール摩耗等の偏摩耗を防止する。更
にサイプ（４）のトレッド表面に近い部分に狭幅部（６
）を配置することにより、トレッド表面のサイプ（４）
の開口幅が狭くなり、サイプ（４）の石噛みを防止する
ことができる。According to the pneumatic tire equipped with sipes having portions with different widths according to the present invention, when the tread rubber is deformed by ground pressure at the ground contact portion of the tire and the sipes (chrysanthemums) are narrowed, only the narrow portion (6) is closed and the wide part (5) is not closed, so water storage and drainage performance is ensured through the wide part (5).Also, as shown in Figure 1, the part of the sipe (4) that opens to the tread surface is If both the narrow part (6) and the wide part (5) exist, even if the opening of the narrow part (6) is closed when touching the ground, the opening of the wide part (5) will not be closed. The edge effect of the opening in section (5) is not lost, and these water storage, drainage properties, and edge effects improve the driving and braking performance of the tire on wet roads.At the same time, the narrow section (6 ) suppresses the movement of the rubber of the small blocks (9) on both sides of the sipe (4) in the tire circumferential direction, preventing uneven wear such as toe and heel wear.Furthermore, the tread surface of the sipe (4) The narrow part (6
) on the tread surface (4)
The opening width of the sipe (4) becomes narrower, and it is possible to prevent the sipe (4) from getting stuck in stones.
本発明の幅の異なる部分を有するサイプを備えた空気入
りタイヤによれば、トウアンドヒール摩耗等の偏摩耗や
石噛みの発生の虞なしに、サイプの貯水、排水性を高め
、タイヤの湿潤路における駆動、制動性能を高めること
ができる。According to the pneumatic tire equipped with sipes having portions of different widths according to the present invention, there is no risk of uneven wear such as toe-and-heel abrasion or occurrence of stone entrainment, and the water storage and drainage performance of the sipe is improved, and the tire is kept moist. Driving and braking performance on roads can be improved.
第１図は本発明のタイヤの一例のトレッドの１つのブロ
ックの斜視図、第２図及び第３図は同Ａ−Ａ及びＢ−Ｂ
断面図、第４図は同Ｃ−Ｃ断面図である。第５図は本発
明のタイヤのサイプの他の実施態様の長手方向の断面図
、第６図は同Ｃ−Ｃ断面図、第７図は本発明のタイヤの
サイプの別の実施態様の長手方向の断面図、第８図は同
Ｃ−Ｃ断面図、第８〜１１図は本発明のタイヤのサイプ
の更に別の実施態様の長手方向の断面図、第１２は同幅
方向の断面図である。
（１）主溝、′（２）横溝、
（３） ブロック、 （４） サイプ、（５
〕 広幅部、 （６）狭幅部、（７）内壁面
、 （８）サイプ底、（９） 小ブロック。
第２図
７ 内壁面
８ サイプ底
９ 小ブロック 第４図第７図
第３図
０−・」 Ｄ
第５図 第６図
ｒ＝Ｄ
Ｌ、、−Ｄ
第７図 第３図
Ｌ・４Ｅ
第７２図
第９図
第７０図FIG. 1 is a perspective view of one block of a tread of an example of the tire of the present invention, and FIGS. 2 and 3 are A-A and B-B of the same.
The sectional view and FIG. 4 are the CC sectional views. FIG. 5 is a longitudinal cross-sectional view of another embodiment of the tire sipe of the present invention, FIG. 6 is a C-C cross-sectional view of the same, and FIG. 7 is a longitudinal cross-sectional view of another embodiment of the tire sipe of the present invention. 8 is a sectional view taken along the line CC, FIGS. 8 to 11 are longitudinal sectional views of still another embodiment of the tire sipe of the present invention, and 12th is a sectional view taken along the same width direction. It is. (1) Main groove, '(2) Lateral groove, (3) Block, (4) Sipe, (5
] Wide part, (6) Narrow part, (7) Inner wall surface, (8) Sipe bottom, (9) Small block. Fig. 2 7 Inner wall surface 8 Sipe bottom 9 Small block Fig. 4 Fig. 7 Fig. 3 0-・D Fig. 5 Fig. 6 r=D L,, -D Fig. 7 Fig. 3 L・4E Figure 72 Figure 9 Figure 70
Claims (3)
区分された隆起部よりなるブロックを有し、該ブロック
の表面に開口する幅の狭い切込み溝よりなるサイプを多
数備えた空気入りタイヤにおいて、該サイプが一枚のサ
イプ内に、サイプの両側の内壁面間の幅の狭い狭幅部と
その幅の広い広幅部とを有することを特徴とする幅の異
なる部分を有するサイプを備えた空気入りタイヤ。(1) A pneumatic tire having a block on the circumferential surface of the tread consisting of tread grooves and a raised part separated by the tread grooves, and a number of sipes consisting of narrow cut grooves opening on the surface of the block, The air is equipped with sipes having different width parts, characterized in that the sipe has a narrow part between the inner wall surfaces on both sides of the sipe and a wide part with a wider width in one sipe. Included tires.
狭幅部を、サイプ底に近い部分に該広幅部を設けた請求
項１記載の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。(2) An air vent equipped with sipes having different width parts according to claim 1, wherein the narrow width part is provided in a part of the tread surface of the sipe near the opening, and the wide part is provided in a part near the bottom of the sipe. tire.
該広幅部を設けた請求項１又は２記載の幅の異なる部分
を有するサイプを備えた空気入りタイヤ。(3) A pneumatic tire equipped with a sipe having portions with different widths according to claim 1 or 2, wherein the wide portion is provided along an opening of the sipe into a tread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1125597A JPH02303908A (en) | 1989-05-18 | 1989-05-18 | Pneumatic tire provided with sipe having part different in width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1125597A JPH02303908A (en) | 1989-05-18 | 1989-05-18 | Pneumatic tire provided with sipe having part different in width |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02303908A true JPH02303908A (en) | 1990-12-17 |
Family
ID=14914083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1125597A Pending JPH02303908A (en) | 1989-05-18 | 1989-05-18 | Pneumatic tire provided with sipe having part different in width |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02303908A (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2804905A1 (en) * | 2000-02-16 | 2001-08-17 | Michelin Soc Tech | PNEUMATIC ROLLER BAND AND MOLD |
| EP1127715A2 (en) * | 2000-02-21 | 2001-08-29 | Bridgestone Corporation | Block structure in pneumatic tire |
| US6315018B1 (en) * | 1997-11-19 | 2001-11-13 | Bridgestone Corporation | Pneumatic tire having sipe structured by narrow groove portion and wide groove portion |
| JP2005247105A (en) * | 2004-03-03 | 2005-09-15 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2006036102A (en) * | 2004-07-29 | 2006-02-09 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| JP2006188225A (en) * | 2004-12-28 | 2006-07-20 | Goodyear Tire & Rubber Co:The | Tire tread with sipe having lateral rigidity |
| US7213625B2 (en) * | 2001-01-29 | 2007-05-08 | Michelin Recherche Et Technique S.A. | Tread which reduces running noise |
| JP2007276662A (en) * | 2006-04-07 | 2007-10-25 | Yokohama Rubber Co Ltd:The | Pneumatic tire, and pneumatic tire molding die |
| US7360568B2 (en) * | 2005-01-27 | 2008-04-22 | Bridgestone Firestone North American Tire, Llc | Tire having narrowing sipes |
| JP2010247713A (en) * | 2009-04-16 | 2010-11-04 | Bridgestone Corp | Tire |
| WO2012041876A1 (en) | 2010-09-30 | 2012-04-05 | Societe De Technologie Michelin | Improved tyre tread |
| WO2012093000A1 (en) * | 2011-01-04 | 2012-07-12 | Continental Reifen Deutschland Gmbh | Pneumatic vehicle tire having sipes in the tread and finned plate for forming a sipe in the tread |
| CN103935191A (en) * | 2014-04-14 | 2014-07-23 | 江苏通用科技股份有限公司 | Tire pattern structure with hidden patterns for truck and passenger car |
| US20150053320A1 (en) * | 2013-08-20 | 2015-02-26 | The Goodyear Tire & Rubber Company | Pneumatic tire tread with sipes and mold blade |
| CN106852135A (en) * | 2014-09-30 | 2017-06-13 | 米其林集团总公司 | The tire tread of the variable thickness tread groove in region including reducing with multiple thickness |
| US20180272637A1 (en) * | 2015-09-30 | 2018-09-27 | Compagnie Generale Des Etablissements Michelin | Hybrid sipes and methods for forming a tire tread |
| EP3450214A1 (en) * | 2017-09-04 | 2019-03-06 | Continental Reifen Deutschland GmbH | Tread profile of a vehicle tyre |
| US10343464B2 (en) | 2014-12-25 | 2019-07-09 | Toyo Tire Corporation | Pneumatic tire and molding die thereof |
| WO2021053913A1 (en) * | 2019-09-19 | 2021-03-25 | 株式会社ブリヂストン | Pneumatic tire |
| US11186054B2 (en) | 2015-09-30 | 2021-11-30 | Compagnie Generale Des Etablissements Michelin | Variable thickness sipes |
| US11186124B2 (en) * | 2017-04-04 | 2021-11-30 | Compagnie Generale Des Etablissements Michelin | Tire with improved performances having cuts with a protuberance that locally reduce a width of a cut in the tread |
| US11338618B2 (en) | 2015-09-30 | 2022-05-24 | Compagnie Generale Des Etablissements Michelin | Egg crate sidewall features for sipes |
| WO2023208292A1 (en) * | 2022-04-29 | 2023-11-02 | Continental Reifen Deutschland Gmbh | Vehicle tire |
-
1989
- 1989-05-18 JP JP1125597A patent/JPH02303908A/en active Pending
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|---|---|---|---|---|
| US6315018B1 (en) * | 1997-11-19 | 2001-11-13 | Bridgestone Corporation | Pneumatic tire having sipe structured by narrow groove portion and wide groove portion |
| FR2804905A1 (en) * | 2000-02-16 | 2001-08-17 | Michelin Soc Tech | PNEUMATIC ROLLER BAND AND MOLD |
| WO2001060642A1 (en) * | 2000-02-16 | 2001-08-23 | Societe De Technologie Michelin | Tyre tread |
| EP1127715A2 (en) * | 2000-02-21 | 2001-08-29 | Bridgestone Corporation | Block structure in pneumatic tire |
| EP1127715A3 (en) * | 2000-02-21 | 2002-06-12 | Bridgestone Corporation | Block structure in pneumatic tire |
| US6561242B2 (en) * | 2000-02-21 | 2003-05-13 | Bridgestone Corporation | Block structure in pneumatic tire |
| US7213625B2 (en) * | 2001-01-29 | 2007-05-08 | Michelin Recherche Et Technique S.A. | Tread which reduces running noise |
| JP2005247105A (en) * | 2004-03-03 | 2005-09-15 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2006036102A (en) * | 2004-07-29 | 2006-02-09 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| JP2006188225A (en) * | 2004-12-28 | 2006-07-20 | Goodyear Tire & Rubber Co:The | Tire tread with sipe having lateral rigidity |
| US7188650B2 (en) * | 2004-12-28 | 2007-03-13 | The Goodyear Tire & Rubber Company | Siped tire tread with high transverse stiffness |
| US7360568B2 (en) * | 2005-01-27 | 2008-04-22 | Bridgestone Firestone North American Tire, Llc | Tire having narrowing sipes |
| JP2007276662A (en) * | 2006-04-07 | 2007-10-25 | Yokohama Rubber Co Ltd:The | Pneumatic tire, and pneumatic tire molding die |
| JP2010247713A (en) * | 2009-04-16 | 2010-11-04 | Bridgestone Corp | Tire |
| CN103140361B (en) * | 2010-09-30 | 2015-11-25 | 米其林集团总公司 | The tire protector improved |
| WO2012041876A1 (en) | 2010-09-30 | 2012-04-05 | Societe De Technologie Michelin | Improved tyre tread |
| CN103140361A (en) * | 2010-09-30 | 2013-06-05 | 米其林集团总公司 | Improved tyre tread |
| DE202011110278U1 (en) | 2010-09-30 | 2013-09-02 | Compagnie Generale Des Etablissements Michelin | Improved tire tread |
| WO2012093000A1 (en) * | 2011-01-04 | 2012-07-12 | Continental Reifen Deutschland Gmbh | Pneumatic vehicle tire having sipes in the tread and finned plate for forming a sipe in the tread |
| US20150053320A1 (en) * | 2013-08-20 | 2015-02-26 | The Goodyear Tire & Rubber Company | Pneumatic tire tread with sipes and mold blade |
| CN104417276A (en) * | 2013-08-20 | 2015-03-18 | 固特异轮胎和橡胶公司 | Pneumatic tire tread with sipes and mold blade |
| EP2853417A3 (en) * | 2013-08-20 | 2015-08-12 | The Goodyear Tire & Rubber Company | Pneumatic tire tread with sipes and mold blade |
| US9463672B2 (en) | 2013-08-20 | 2016-10-11 | The Goodyear Tire & Rubber Company | Pneumatic tire tread with sipes and mold blade |
| CN103935191A (en) * | 2014-04-14 | 2014-07-23 | 江苏通用科技股份有限公司 | Tire pattern structure with hidden patterns for truck and passenger car |
| US10773556B2 (en) | 2014-09-30 | 2020-09-15 | Compagnie Generale Des Etablissements Michelin | Tire tread comprising variable thickness sipes with multiple areas of reduced thickness |
| US20170225517A1 (en) * | 2014-09-30 | 2017-08-10 | Compagnie Generale Des Etablissements Michelin | A tire tread comprising variable thickness sipes with multiple areas of reduced thickness |
| JP2017534512A (en) * | 2014-09-30 | 2017-11-24 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Tire tread having a sipe of variable thickness having a plurality of regions with reduced thickness |
| CN106852135A (en) * | 2014-09-30 | 2017-06-13 | 米其林集团总公司 | The tire tread of the variable thickness tread groove in region including reducing with multiple thickness |
| US10882362B2 (en) | 2014-09-30 | 2021-01-05 | Compagnie Generale Des Etablissements Michelin | Stiffeners for sipe-molding members |
| EP3201011B1 (en) * | 2014-09-30 | 2019-08-07 | Compagnie Générale des Etablissements Michelin | A tire tread comprising variable thickness sipes with multiple areas of reduced thickness |
| US10343464B2 (en) | 2014-12-25 | 2019-07-09 | Toyo Tire Corporation | Pneumatic tire and molding die thereof |
| US20180272637A1 (en) * | 2015-09-30 | 2018-09-27 | Compagnie Generale Des Etablissements Michelin | Hybrid sipes and methods for forming a tire tread |
| US11186054B2 (en) | 2015-09-30 | 2021-11-30 | Compagnie Generale Des Etablissements Michelin | Variable thickness sipes |
| US11338618B2 (en) | 2015-09-30 | 2022-05-24 | Compagnie Generale Des Etablissements Michelin | Egg crate sidewall features for sipes |
| US11186124B2 (en) * | 2017-04-04 | 2021-11-30 | Compagnie Generale Des Etablissements Michelin | Tire with improved performances having cuts with a protuberance that locally reduce a width of a cut in the tread |
| EP3450214A1 (en) * | 2017-09-04 | 2019-03-06 | Continental Reifen Deutschland GmbH | Tread profile of a vehicle tyre |
| WO2021053913A1 (en) * | 2019-09-19 | 2021-03-25 | 株式会社ブリヂストン | Pneumatic tire |
| JP2021046133A (en) * | 2019-09-19 | 2021-03-25 | 株式会社ブリヂストン | Pneumatic tire |
| WO2023208292A1 (en) * | 2022-04-29 | 2023-11-02 | Continental Reifen Deutschland Gmbh | Vehicle tire |
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