CN102407741A - Tire bead structure capable of preventing translocation of tire bead for off-the-road tire with inner tube - Google Patents
Tire bead structure capable of preventing translocation of tire bead for off-the-road tire with inner tube Download PDFInfo
- Publication number
- CN102407741A CN102407741A CN2011102534955A CN201110253495A CN102407741A CN 102407741 A CN102407741 A CN 102407741A CN 2011102534955 A CN2011102534955 A CN 2011102534955A CN 201110253495 A CN201110253495 A CN 201110253495A CN 102407741 A CN102407741 A CN 102407741A
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- tire
- tire bead
- bead
- wheel rim
- tyre
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Abstract
The invention discloses a tire bead structure capable of preventing translocation of a tire bead for an off-the-road tire with an inner tube. The invention comprises a tire bead body and is characterized in that: the tire bead bottom diameter Dr of the tire bead structure is 1 mm shorter than a specified rim diameter D; a tire bead bottom angle is 1 degree smaller than a rim contacting surface angle which is 5 degrees. According to the invention, the design of the tire bead structure in the invention enables the interior shape of the tire bead not to be changed and extra reinforcing members to be utilized at the exterior of the tire; mainly through reasonable cooperation between a tire bead part and a wheel rim, deformation of the tire bead part towards the transverse outer flank of the tire and circumferential rotation displacement towards the wheel rim can be effectively inhibited when the tire is in a state of high load driving, and damage of the tire bead in an early stage caused by wearing at contact sites where the tire bead part contacts with the flange and the bottom of the wheel rim is avoided.
Description
Technical field
The present invention relates to tire, specifically is the bead structure that inner tube of a tyre off-the-road tyre is arranged that prevents the tyre bead transposition.
Background technology
The air pressure of off-the-road tyre is lower; It is more serious to overload, and squeegee action is bigger, and this type of tire all is in the mine usually or other building-site uses; Road conditions are complicated abominable; Need bear huge moment of torsion when road conditions such as tip and hard objects such as rock are many, ditch is many, sloping Lu Duo make the tire normal operation, bad if tire cooperates with wheel rim, often cause between tire and the wheel rim transposition takes place and bead chafing appears, the rim of the mouth is quick-fried and tire infantile failure such as bead part tyre cavity fracture.
Many in the past tires producer produces the tire transposition for off-the-road tyre is unlikely when transmitting powerful tractive force; Often adopt the mode of big interference fit, the powerful friction force that produces by the big compression modulus between bead base and the wheel rim comes transferring power and suppresses the tire transposition.But this mode can be brought the adverse effect of following several respects: 1) cause the powerful interference loss of bead coil, cause cost to improve for guaranteeing the powerful steel wire quantity that increases of tyre bead; 2) owing to the huge friction force inhibition of bead base, thereby the outside contact pressure minimizing with wheel rim of tyre bead also diminishes the friction force at this position thereupon, the partial offset total frictional force; 3) big interference fit influences the comfort feature and the handling labor efficient of tire loading and unloading greatly.
Summary of the invention
The objective of the invention is to provide a kind of is installed on 5 ° of wheel rims; Easy to loading and unloading; And can effectively prevent the bead structure of the off-the-road tyre that the inner tube of a tyre is arranged of tyre bead transposition; This structure can effectively suppress tire when under high load capacity, going, and tyre bead rushes at the distortion of tire lateral outer side and the circumferential rotation displacement of wheel rim relatively, avoids contacts site such as tyre bead portion and rim flange, bottom that wearing and tearing take place and causes early stage tyre bead damage.
The technical scheme that realizes the object of the invention is:
Dr is littler than wheel rim nominal diameter D for this tire bead structure bead base diameter, and guaranteeing has closely cooperating of appropriateness between tyre and rim, makes each position contact pressure rationally, evenly.The bead base angle mainly is to make things convenient for tire one side tyre bead to put into wheel rim easily than little with 5 ° of wheel rim mating surfaces angles, and the opposite side tyre bead is gone in a rim under the dismounting and a side pressure of bead seat, accomplishes the installation of tire and wheel rim together.
Described bead base diameter Dr is than the little 1mm of wheel rim nominal diameter D;
Described bead base angle ratio and 5 ° little 1 ° of wheel rim mating surfaces angle.
Advantage of the present invention is: adopt the bead base structure design of this invention, can change tyre bead interior shape and outside tires additive incrementation reinforcement.Main reasonable cooperation through bead part and wheel rim; In the time of can effectively suppressing to go under the tire high load capacity; Bead part is to the distortion of tire lateral outer side and the circumferential rotation displacement of wheel rim relatively, avoids contacts site such as tyre bead portion and rim flange, bottom that wearing and tearing take place and causes early stage tyre bead damage.
Description of drawings
Fig. 1 is a bead structure scheme drawing of the present invention.
Among the figure: 1. bead base 2. wheel rims 3. bead base diameter Dr 4. wheel rim nominal diameter D.
The specific embodiment
During tire design, bead base diameter Dr3 is littler than wheel rim nominal diameter D4, and D-Dr is 1mm.Tyre bead bottom surface angle is than little with 5 ° of wheel rim mating surfaces angles, and value is 4 °.
This kind air-inflation tyre can be assemblied in the above standard rim of 24in, has the carcass of symmetrical tyre bead portion.Can guarantee has closely cooperating of appropriateness between tyre and rim, make each position contact pressure rationally, evenly.The bead base angle mainly is to make things convenient for tire one side tyre bead to put into wheel rim easily than little with 5 ° of wheel rim mating surfaces angles, and the opposite side tyre bead is gone in a rim under the dismounting and a side pressure of bead seat, accomplishes the installation of tire and wheel rim together.
Claims (2)
1. one kind prevents the bead structure tyre bead transposition, that inner tube of a tyre off-the-road tyre is arranged, comprises the tyre bead body, and it is characterized in that: bead base diameter Dr is littler than wheel rim nominal diameter D; The bead base angle is than little with 5 ° of wheel rim mating surfaces angles.
2. bead structure according to claim 1 is characterized in that: described bead base diameter Dr is than the little 1mm of wheel rim nominal diameter D; Bead base angle ratio and 5 ° little 1 ° of wheel rim mating surfaces angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102534955A CN102407741A (en) | 2011-08-31 | 2011-08-31 | Tire bead structure capable of preventing translocation of tire bead for off-the-road tire with inner tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102534955A CN102407741A (en) | 2011-08-31 | 2011-08-31 | Tire bead structure capable of preventing translocation of tire bead for off-the-road tire with inner tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102407741A true CN102407741A (en) | 2012-04-11 |
Family
ID=45910203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102534955A Pending CN102407741A (en) | 2011-08-31 | 2011-08-31 | Tire bead structure capable of preventing translocation of tire bead for off-the-road tire with inner tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102407741A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010017180A1 (en) * | 2000-02-15 | 2001-08-30 | The Yokohama Rubber Co., Ltd. | Pneumatic tire and assembly of tire and wheel |
| CN2675435Y (en) * | 2004-01-09 | 2005-02-02 | 关晶 | Load carried bias tyre |
| CN101380874A (en) * | 2008-09-29 | 2009-03-11 | 中橡集团曙光橡胶工业研究设计院 | Method for preventing aerotyre from positioning |
| CN202242814U (en) * | 2011-08-31 | 2012-05-30 | 中橡集团曙光橡胶工业研究设计院 | Tire bead structure with inner tube engineering machinery tire for preventing inversion of tire bead |
-
2011
- 2011-08-31 CN CN2011102534955A patent/CN102407741A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010017180A1 (en) * | 2000-02-15 | 2001-08-30 | The Yokohama Rubber Co., Ltd. | Pneumatic tire and assembly of tire and wheel |
| CN2675435Y (en) * | 2004-01-09 | 2005-02-02 | 关晶 | Load carried bias tyre |
| CN101380874A (en) * | 2008-09-29 | 2009-03-11 | 中橡集团曙光橡胶工业研究设计院 | Method for preventing aerotyre from positioning |
| CN202242814U (en) * | 2011-08-31 | 2012-05-30 | 中橡集团曙光橡胶工业研究设计院 | Tire bead structure with inner tube engineering machinery tire for preventing inversion of tire bead |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |