JPH02121309U - - Google Patents
Info
- Publication number
- JPH02121309U JPH02121309U JP2900689U JP2900689U JPH02121309U JP H02121309 U JPH02121309 U JP H02121309U JP 2900689 U JP2900689 U JP 2900689U JP 2900689 U JP2900689 U JP 2900689U JP H02121309 U JPH02121309 U JP H02121309U
- Authority
- JP
- Japan
- Prior art keywords
- bead
- bead bottom
- carcass
- maximum height
- tread portion
- 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
- 239000011324 bead Substances 0.000 claims description 16
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例を示すタイヤ右半分
断面図、第２図はそのビード部を拡大して示す断
面図、第３図はビード底面の輪郭を示す線図、第
４図は従来技術を示す断面図である。
２……ビードコア、３……ビード部、４……サ
イドウオール部、５……トレツド部、６……カー
カス、７……ベルト層、９……リムシート、１０
……リムフランジ、１１……ビード底面、１２…
…ビード側面、１４……凹部、１５……外斜面、
１６……内斜面、Ａ……外端、Ｂ……内端、Ｈ…
…最大高さ部分の高さ、Ｌ……ビード底面の巾、
Ｏ……基点、Ｍ……最大高さ部分、Ｗ……支点間
の長さ、Ｘ，Ｙ……支点。
Fig. 1 is a sectional view of the right half of a tire showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the bead, Fig. 3 is a diagram showing the outline of the bottom of the bead, and Fig. 4 is a sectional view of the right half of the tire showing an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a conventional technique. 2... Bead core, 3... Bead part, 4... Side wall part, 5... Treaded part, 6... Carcass, 7... Belt layer, 9... Rim sheet, 10
...Rim flange, 11...Bead bottom, 12...
...bead side surface, 14...concavity, 15...outer slope,
16...Inner slope, A...Outer end, B...Inner end, H...
...height of the maximum height part, L...width of the bottom of the bead,
O: base point, M: maximum height, W: length between fulcrums, X, Y: fulcrums.
Claims (1)
部のビードコアの周りを折返すカーカスと、該カ
ーカスの半径方向外側からトレツド部の内方に配
されるベルト層とが設けられ、かつ該ビード部は
、リムシートに着座するビード底面とリムフラン
ジに接する略半径方向にのびるビード側面とを具
えるとともに、前記ビード底面に、前記ビード側
面からタイヤ軸方向内側に向かつてビード底面の
巾Ｌの０．５倍の距離を隔てる位置を基点として
該基点の３mmの範囲に位置する最大高さ部分から
外方にのびかつ下端がビード底面の外端内方で該
ビード底面と交わる外斜面および内方にのびかつ
下端がビード底面の内端内方で外ビード底面と交
わる内斜面を有する略三角形状の凹部を周方向に
連続して形成する一方、ビード底面から前記最大
高さ部分までの高さＨは０．５〜１．５mmかつ内
、外斜面の前記交点間の長さＷを５〜１０mmとし
た重荷重用空気入りタイヤ。 A carcass that passes from the tread portion through the sidewall portion and folds around the bead core of the bead portion, and a belt layer disposed from the radially outer side of the carcass to the inside of the tread portion, and the bead portion includes: The bead bottom surface is provided with a bead bottom surface that sits on the rim seat and a bead side surface that extends in a substantially radial direction in contact with the rim flange. Extending outward from the maximum height part located within 3 mm of the base point from a position separated by a distance of A substantially triangular concave portion having an inner slope whose lower end intersects with the outer bead bottom surface inside the inner end of the bead bottom surface is formed continuously in the circumferential direction, while the height H from the bead bottom surface to the maximum height portion is 0. A pneumatic tire for heavy loads, in which the length W between the intersection points of the inner and outer slopes is 5 to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2900689U JPH02121309U (en) | 1989-03-13 | 1989-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2900689U JPH02121309U (en) | 1989-03-13 | 1989-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02121309U true JPH02121309U (en) | 1990-10-02 |
Family
ID=31252834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2900689U Pending JPH02121309U (en) | 1989-03-13 | 1989-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02121309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011213314A (en) * | 2010-04-02 | 2011-10-27 | Bridgestone Corp | Pneumatic tire |
-
1989
- 1989-03-13 JP JP2900689U patent/JPH02121309U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011213314A (en) * | 2010-04-02 | 2011-10-27 | Bridgestone Corp | Pneumatic tire |
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