CN100436168C - Tyre ring structure capable of increasing durability of lorry tyre - Google Patents
Tyre ring structure capable of increasing durability of lorry tyre Download PDFInfo
- Publication number
- CN100436168C CN100436168C CNB2005101259917A CN200510125991A CN100436168C CN 100436168 C CN100436168 C CN 100436168C CN B2005101259917 A CNB2005101259917 A CN B2005101259917A CN 200510125991 A CN200510125991 A CN 200510125991A CN 100436168 C CN100436168 C CN 100436168C
- Authority
- CN
- China
- Prior art keywords
- tyre
- steel wire
- tire
- carcass
- wire infantees
- 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.)
- Expired - Fee Related
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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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
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- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
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- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides a tyre ring structure of lorry tyre, wherein a bare tyre ring (1) is encased by a tyre ring filling (2), and the bare tyre ring (1) and the tyre ring filling (2) are encased by a tyre body (3) and a steel wire wrapping cloth (4), and the steel wire wrapping cloth (4) and a rubber sheet (5) are attached with a nylon reinforcing material (6). A steel wire cord (4a) of the steel wire wrapping cloth (4) of the tyre body (3) is arranged horizontally to form an inclined angle of 20 degree to 45 degree with respect to a steel wire cord (3a) of the tyre body (3) in the radial direction of the tyre, thereby increasing fatigue durability of tyre after persistent overloading in bad conditions.
Description
Technical field
The present invention relates to be installed in the bead structure of the tire on bus, the truck etc., in more detail, can improve the bead structure of the tire for heavy load use of fatigue durability.In the process of moving, described fatigue durability can become the subject matter of tire for heavy load use under abominable usage condition.
Background technology
Generally, substantially be divided into tyre surface (Tread), carcass (Carcass), interlayer (Breaker) and tyre bead (Bead) four parts with tire and bus with the structure of the tire for heavy load use of tire as truck.Wherein, tyre surface comprises successively as the rubber layer in the outside that covers carcass and interlayer: the sidewall (Side wall) and the wheel rim buffer part (Rim cushion) of the crown (Crown) that contacts with ground and be made of the thicker part of thickness, tire shoulder (Shoulder) portion, thinner thickness.
In addition, carcass is as being equivalent to the part of the skeleton of tire, facing one direction cord (Cord) carried out stacked, formed layer (Ply), plays the effect that loading of tire, impact and filling air are pressed that puts on of bearing.
In addition, interlayer plays following effects as the bracing ply that is arranged between carcass and the tyre surface, promptly, the impulsive force of the tire that is subjected to from the outside under steam of buffering, prevent that tyre surface from taking place break (Crack) and wound directly arrives carcass, and prevent that described tyre surface and carcass from peeling off.
In addition, tyre bead plays following effects, that is, prevent to press and the breakage of the shape of external force generation because of inflation of tire, and tire stably is placed on the wheel rim, so that et out of order not under steam.
Tire for heavy load use with said structure is because of factors such as overweight, superpressure can be under the abominable usage condition.In actual conditions, under 150%～250% the usage condition of overload for the maximum load load-carrying of tire, the incidence of accident is obviously high.
On the other hand, with reference to Fig. 3, have a look the bead structure of the heavy duty radial tire of prior art.Be that the center is when being provided with the carcass 33 that forms wheel mechanism for tire skeleton with the naked-beads 31 that constitutes by a plurality of high tensile steel wire cords that form main intensity layer, the Compression and Expansion effect repeatedly that continues to travel because of overload condition, in the winding terminal part 33b of this carcass 33, produce high shearing stress especially, can cause early stage accident.
In order to prevent the problems referred to above; general steel wire infantees (Steelchafer) the 34 protection carcasses 33 that constitute by wirecord fabric that use; in order to improve its effect; as shown in Figure 4; the angle of the wirecord fabric 34a of steel wire infantees 34 keeps 20 °～60 ° degree with respect to radially (Radial direction: it refers to the wirecord fabric 33a direction of carcass 33); and this wirecord fabric 34a arranges with respect to the imaginary center line left and right symmetrically of tire, forms vee shape on the whole.
Above-mentioned existing structure is in tire production, because bending phenomenon occurs and distortion (warp) phenomenon for the wirecord fabric 34a angle of the wirecord fabric 33a invar silk infantees 34 of the carcass of bead part 37, have directivity, therefore, become the reason of rapid reduction tyre bead durability.
In addition, the bead part of prior art is because the inner edge 34c position of steel wire infantees 34 is improper, when overload, cause the reduction of durability and the cut-out accident of the carcass cord around the inner edge, particularly the position of the winding terminal part 33b of carcass 33 also is unfavorable for durability, so be necessary to make improvements.
Summary of the invention
In order to solve above-mentioned existing issue, the objective of the invention is to, even provide a kind of under steam overload and cross the bead structure that also can improve the tire for heavy load use of fatigue durability under the abominable usage condition of air pressure.
In order to achieve the above object, in the bead structure of tire for heavy load use of the present invention, naked-beads is encased by the tyre bead filler, described naked-beads and tyre bead filler are encased by carcass and steel wire infantees, described steel wire infantees and sheet rubber are pasted with the nylon reinforcement material, it is characterized in that, the wirecord fabric of the steel wire infantees that described carcass is strengthened is 20 °～45 ° with respect to the angle of inclination of the wirecord fabric of carcass, and the wirecord fabric of described steel wire infantees is parallel to each other in the orientation of described naked-beads left and right sides.
Description of drawings
Fig. 1 is the partial section of the tire of expression bead part of the present invention;
Fig. 2 is the enlarged drawing of the A deployed condition partly of schematic cutaway 1;
Fig. 3 is the partial section of the tire of the bead part of the existing tire of expression;
Fig. 4 is the enlarged drawing of the A deployed condition partly of schematic cutaway 3.
The specific embodiment
Below, the present invention is described in detail with reference to accompanying drawing.
In accompanying drawing of the present invention, to prior art figure in identical part, used identical drawing reference numeral.
Fig. 1 is the section drawing of the bead part of expression tire for heavy load use of the present invention, and Fig. 2 is the enlarged drawing of the A part of schematic cutaway 1, in the A part wirecord fabric of steel wire infantees and the wirecord fabric direction of carcass is compared.
In the bead structure of tire for heavy load use of the present invention, encase naked-beads 1, encase described naked-beads 1 and tyre bead filler 2, and nylon reinforcement material 6 is pasted to described steel wire infantees 4 and sheet rubber 5 with carcass 3 and steel wire infantees 4 with tyre bead filler 2.Wherein, the wirecord fabric 4a of the steel wire infantees 4 that described carcass 3 is strengthened is 20 °～45 ° with respect to the angle of inclination of the wirecord fabric 3a of carcass 3, and described wirecord fabric 4a is parallel to each other in the orientation of naked-beads 1 left and right sides.
In addition, the position of the edge part 4c of position, the inboard of the tire of described steel wire infantees 4 (fills with air side just) is lower than the terminal part 4b of the winding terminal part 3b of the carcass 3 of the tire outside (wheel rim installation side) and steel wire infantees 4, the height m of the edge part 4c of this steel wire infantees 4 is set to: the line of centers H with naked-beads 1 is a benchmark, is 30～50% of the whole height K of tyre bead filler 2.
In addition, the whole height K of the relative tyre bead filler 2 of height n of the winding terminal part 3b of described carcass 3 is 50～75%, be provided with chock shape sheet rubber 5 at described winding terminal part 3b,, further used the nylon reinforcement material of strengthening with nylon material 6 more than for anti-overload.
Following table 1 is at the indoor table as a result that the durability of bead part of the present invention and existing bead part is estimated.Therefrom as can be known, the present invention has good tyre bead durability under identical experiment condition.
| Project | Prior art | The present invention | Relatively |
| The durability factor of tyre bead | 100 | 160 | Improve 60% |
Experiment condition:
Load-carrying: 200% of the maximum load load-carrying of tire;
Speed: 60km/hr;
Air is pressed: 145% of the maximum empty air pressure of tire
As mentioned above, the structure of the tyre bead of tire for heavy load use of the present invention has following advantage: can improve the fatigue durability when bearing sustained overload under the tire abominable usage condition under steam.
Claims (3)
1. the bead structure of a tire for heavy load use, wherein, naked-beads (1) is encased by tyre bead filler (2), described naked-beads (1) and tyre bead filler (2) are encased by carcass (3) and steel wire infantees (4), described steel wire infantees (4) and sheet rubber (5) are pasted with nylon reinforcement material (6), it is characterized in that
The wirecord fabric (4a) of the described steel wire infantees (4) that described carcass (3) is strengthened is 20 °～45 ° with respect to the angle of inclination of the wirecord fabric (3a) of described carcass (3), and described wirecord fabric (4a) is parallel to each other in the orientation of naked-beads (1) left and right sides.
2. the bead structure of tire for heavy load use as claimed in claim 1, it is characterized in that, the position of the edge part as the fills with air side of the tire inboard of described steel wire infantees (4) (4c) is lower than the terminal part (4b) of the winding terminal part (3b) of the described carcass (3) of the wheel rim installation side in the tire outside and described steel wire infantees (4), the height (m) of the edge part (4c) of described steel wire infantees (4) is set to: the line of centers (H) with described naked-beads (1) is a benchmark, is 30～50% of the whole height (K) of described tyre bead filler (2).
3. the bead structure of tire for heavy load use as claimed in claim 1 is characterized in that, the height (n) of the winding terminal part (3b) of described carcass (3) be described tyre bead filler (2) whole height (K) 50～75%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040099358 | 2004-11-30 | ||
| KR1020040099358A KR20060060317A (en) | 2004-11-30 | 2004-11-30 | Bead structure of tire for truck and bus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1781743A CN1781743A (en) | 2006-06-07 |
| CN100436168C true CN100436168C (en) | 2008-11-26 |
Family
ID=36772503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101259917A Expired - Fee Related CN100436168C (en) | 2004-11-30 | 2005-11-30 | Tyre ring structure capable of increasing durability of lorry tyre |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060060317A (en) |
| CN (1) | CN100436168C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100812060B1 (en) * | 2006-12-06 | 2008-03-07 | 한국타이어 주식회사 | Pneumatic tire improved bead member |
| KR100821550B1 (en) * | 2006-12-28 | 2008-04-15 | 금호타이어 주식회사 | The heavy-duty pneumatic radial tire improving the durability of the bead section |
| JP4966687B2 (en) * | 2007-02-15 | 2012-07-04 | 株式会社ブリヂストン | Pneumatic tire |
| KR101040639B1 (en) * | 2008-12-02 | 2011-06-13 | 한국타이어 주식회사 | Vehicle tire improved bead member |
| KR101046395B1 (en) * | 2009-12-15 | 2011-07-05 | 한국타이어 주식회사 | Code structure of steel chafer for suppressing carcass cutting |
| CN103192668B (en) * | 2013-04-15 | 2015-09-02 | 山东万鑫轮胎有限公司 | Middle-long distance high speed high-mechanic automobile radial tire |
| JP6261121B2 (en) * | 2014-01-20 | 2018-01-17 | 住友ゴム工業株式会社 | Pneumatic tire |
| US20190184765A1 (en) * | 2017-12-15 | 2019-06-20 | The Goodyear Tire & Rubber Company | Pneumatic tire with a robust ply ending structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790366A (en) * | 1984-11-16 | 1988-12-13 | Bridgestone Corporation | Pneumatic radial tire for heavy duty vehicle |
| CN1298354A (en) * | 1998-03-20 | 2001-06-06 | 米什兰集团总公司 | Radial tyre reinforced bead |
| WO2003006267A1 (en) * | 2001-07-10 | 2003-01-23 | Bridgestone Corporation | Pneumatic tire |
| CN1426909A (en) * | 1995-11-29 | 2003-07-02 | 株式会社普利司通 | Inflatable radial tyre mounted on rim with 15 deg. deep gutter |
-
2004
- 2004-11-30 KR KR1020040099358A patent/KR20060060317A/en not_active Application Discontinuation
-
2005
- 2005-11-30 CN CNB2005101259917A patent/CN100436168C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790366A (en) * | 1984-11-16 | 1988-12-13 | Bridgestone Corporation | Pneumatic radial tire for heavy duty vehicle |
| CN1426909A (en) * | 1995-11-29 | 2003-07-02 | 株式会社普利司通 | Inflatable radial tyre mounted on rim with 15 deg. deep gutter |
| CN1298354A (en) * | 1998-03-20 | 2001-06-06 | 米什兰集团总公司 | Radial tyre reinforced bead |
| WO2003006267A1 (en) * | 2001-07-10 | 2003-01-23 | Bridgestone Corporation | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1781743A (en) | 2006-06-07 |
| KR20060060317A (en) | 2006-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |