CN101934684B - Pneumatic tyre with diamond-shape section and without bead rings, and rim thereof - Google Patents
Pneumatic tyre with diamond-shape section and without bead rings, and rim thereof Download PDFInfo
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- CN101934684B CN101934684B CN201010266279XA CN201010266279A CN101934684B CN 101934684 B CN101934684 B CN 101934684B CN 201010266279X A CN201010266279X A CN 201010266279XA CN 201010266279 A CN201010266279 A CN 201010266279A CN 101934684 B CN101934684 B CN 101934684B
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Abstract
The invention discloses a pneumatic tyre with a diamond-shape section and without bead rings, and a rim thereof. The tyre comprises an inner liner, a tyre body casing ply, tyre body casing ply terminations, tyre abdomen glue, tyre side glue, tyre shoulder filling glue, tyre surface glue, a belt ply and an inflating valve, wherein the inner liner is arranged on the most inside of a tyre; the inner liner is coated with the tyre body casing ply; both ends of the tyre body casing ply are both connected with a tyre body casing ply termination; the two tyre body casing ply terminations overlap with each other; both ends of a flat level of the rim are respectively provided with a transition step; the outer side of each transition step is provided with a curve arc; and the outer side of each curve arc is provided with a curling edge. The invention completely abandons the bead ring structure of the traditional tyre, and uses a tyre body structure that any section of a tyre presents nearly elliptic cyclic annular closing like a ring. The tyre and the rim thereof with the structure have enough lateral stiffness and cornering stiffness during use, and have no relative slip.
Description
Technical field
The present invention relates to a kind of wheel.
Background technology
Since radial-ply tyre was invented the forties in 20th century by Michelin, through the development in more than halfth century, it is perfect that tyre performance has become.In the representative type radial-ply tyre structure; In bead part, it is areal of stress concentration that the carcass cord is walked around the formed anti-package of bead coil termination, particularly when carcass adopts wirecord fabric; Tire in use often comes to nothing because of cord anti-package termination, and causes occurring the various symptom of tire bead infantile failure.Tyre bead plays an important role in the use of tire: 1, bead coil is fixed on tire on the wheel rim and passes through its base material banding compression; Make the static friction force that forms between tyre bead and wheel rim greater than the static friction force between tread surface and ground, prevent the slide relative between tire and rim for automobile wheel when vehicle is advanced.Because in case slide relative occurs, tire does not just possess the key property of transferring power, and tire bead is damaged rapidly.The profilograph of wheel rim and wheel hub match with tyre bead, bear the outside axial thrust that tyre bead forms under interior pressure effect, realize the axial location to tyre bead; Bear the radially banding compressive force of tyre bead simultaneously, form the friction force of wheel rim to the tire transferring power, this is the radical function of traditional wheel rim.2, at the tire bead position; A leg-of-mutton rubber content member is arranged between bead coil end face, carcass anti-package end and carcass cord; Effect is to make bending stiffness be smoothly transitted into the position, sidewall from tyre bead portion; And for tire provides enough lateral rigidity and lateral deviation rigidity, thereby make tire possess necessary maneuvering performance.
How handling the problem of carcass cord anti-package termination stress concentration well, always is one of important goal of tire optimal design pursuit.U.S. Pat 4265293 in the described simplification closed loop radial-ply tyre, has adopted the carcass closed loop; Though avoided the appearance of anti-package termination, this closed loop fails to embody the repertoire of bead part, therefore; Also need design the bead coil parts is fixed on tire on the wheel rim; Or adopt adhesion agent to adhere to tire on the wheel rim, and this type tire do not possess the lateral rigidity and the lateral deviation rigidity of tire, thereby this type tire does not possess in-use performance.
U.S. Pat 4057445, carcass have also adopted closed-loop structure, still adopt bead coil that the closed loop carcass is fixed on the wheel rim, and the lateral rigidity of tire and lateral deviation rigidity still lack.
European patent EP 0894645A1; Carcass has also adopted closed-loop structure, and triangle glue adopts external design, also is designed with bead coil and fabric ring in the triangle glue and strengthens; Though can keep the function of the tyre bead of original typical radial-ply tyre basically; But the lateral rigidity of tire and lateral deviation rigidity be reduction widely, and tire weight is compared with typical radial-ply tyre does not have big variation, and structure does not have advantage.
U.S. Pat 4682640, it is structurally similar basically with above-mentioned U.S. Pat 4057445, and defective is identical.
Summary of the invention
The objective of the invention is to cause tire bead the various symptom problems of infantile failure to occur in order to solve in use normal the coming to nothing of existing tire because of carcass cord anti-package termination; Fundamentally eliminate the fault of construction of former typical tire tyre bead portion, and then provide that a kind of to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof.
The present invention; Section is that the no bead coil air-inflation tyre of diamond ring shape is realized through following technical scheme; The present invention includes: air-retaining liner, casingply, casingply termination, tire abdomen glue, sidewall rubber, tire shoulder are filled glue, tread-rubber, bracing ply and tire tube valve; Said air-retaining liner is arranged on the most inboard of tire, and said casingply is coated on the outside of air-retaining liner, and the end of casingply is the casingply termination; Two casingply terminations overlap each other; Be disposed with tire abdomen glue, sidewall rubber, tire shoulder on the outside face of casingply and fill glue and tread-rubber, be provided with bracing ply between casingply and the tread-rubber, tire tube valve is fixed on tire abdomen one side and through air-retaining liner and casingply; The height in tire chamber is H; The height of curve arc is h, and the span of h is at 0.35H～0.6H; Simultaneously, after wheel rim and tire assembled by the standard inflation, the sectional curve total length of wheel rim and tire contact surface reached more than 0.6 times of tire nominal aperture; Rim surface has certain roughness, makes friction coefficient＞0.4 between itself and rubber; The cooresponding rim surface of curve arc and flat level is long-pending to be S0; When being inflated to governing criterion air pressure P0 after diamond ring shape tire and the assembling of rim contour curve; Diamond ring shape tire section and rim contour curve contact wire length overall are L; Make L >=0.8* (2*L41+L43) after the unitized design optimization; And the average pressure P >=0.2*P0 on wheel rim and the diamond ring shape tire contact surface, the static friction force of wheel rim and diamond ring shape tire is: 0.8*S0*0.2*P0*0.4=0.64*S0*P0; If loading of tire is LL, the limit coefficient of static friction between tire and ground is 1.6, and design should be satisfied: 0.64*S0*P0 >=1.6*LL; Its shape facility is; Described wheel rim comprises crimped edge, curve arc, transition shoulder and flat level; Respectively there is a transition shoulder at the two ends of flat level, and the outside of each transition shoulder is provided with a curve arc, and all there is a crimped edge in the outside of each curve arc.
Beneficial effect of the present invention: the technical scheme that the present invention proposes, casted off the bead coil structure of existing tire once and for all, adopt tire carcass layer structure to be nearly elliptical annular closure or semi-closed as ring at tire arbitrary cross-section place.The structure of this technical scheme is compared with typical radial-ply tyre structure; Be equal on the basis at driving performance and maneuvering performance; Improved the abrasion and the service life of tire, greatly reduced the early stage quality problems that occur during tire uses, tire weight reduces by 10～25%; Realize the tire lightweight, thereby can further reduce fuel oil consumption.
The present invention is applicable to all air-inflation tyres, comprising: passenger vehicle tyre, contest are with tire, light truck tire, medium-sized and heavy duty truck tire and passenger tyre, off-the-road tyre, industrial tire, agricultural tyre and aircraft tyre.
Description of drawings
Fig. 1 is the section structure scheme drawing of tire diamond ring shape section of the present invention and wheel rim,
Fig. 2 is the structural representation of tire diamond ring shape section of the present invention,
Fig. 3 is the section structure scheme drawing of wheel rim of the present invention,
Fig. 4 is the section structure scheme drawing of existing representative type radial-ply tyre.
Reference numeral 1-air-retaining liner in more than scheming, the 2-casingply, 3-casingply termination, glue, 5-tire abdomen glue, 6-sidewall rubber are filled in the 4-termination; The 7-tire shoulder is filled glue, 8-tread-rubber, 9-bracing ply, 10-tire tube valve, 11-wheel rim, 20-bead coil; Triangle is filled glue under the 21-, and the last triangle of 22-is filled glue, 23-steel bead wire infantees, 24-carcass metal-cord, 25-carcass metal-cord anti-package termination, 26-inside liner; The wear-resisting glue of 27-tyre bead, glue is filled on the 28-sidewall, the 29-sidewall rubber, the 30-tire shoulder is filled glue, 31-tread-rubber; 32-single or multiple lift bracing ply, 40-crimped edge, 41-curve arc, 42-transition shoulder, 43-flat level.
The specific embodiment
The specific embodiment one: seeing figures.1.and.2 describes; Preferable technical scheme comprises: air-retaining liner 1, casingply 2, casingply termination 3, tire abdomen glue 5, sidewall rubber 6, tire shoulder are filled glue 7, tread-rubber 8, bracing ply 9 and tire tube valve 10; Said air-retaining liner 1 is arranged on the most inboard of tire; Said casingply 2 is coated on the outside of air-retaining liner 1; The two ends of casingply 2 all are connected with 3, two casingply terminations, a casingply termination, 3 mutual overlap joints or nearly closed butt joint, are disposed with tire abdomen glue 5, sidewall rubber 6, tire shoulder filling glue 7 and tread-rubber 8 on the outside face of casingply 2; Be provided with bracing ply 9 between casingply 2 and the tread-rubber 8, tire tube valve 10 is fixed on tire abdomen one side and through tire abdomen glue 5, casingply 2 and air-retaining liner 1.
The specific embodiment two: seeing figures.1.and.2 describes, and the lap-joint of said two the casingply terminations 3 of this embodiment is in the inboard of bracing ply 9.Other are identical with the specific embodiment one.
The specific embodiment three: seeing figures.1.and.2 describes, and this embodiment also comprises two terminations filling glue 4, and the section that glue 4 is filled in the termination is a triangle, and the outer end of each casingply termination 3 is provided with a termination and fills glue 4.Other are identical with the specific embodiment two.
The specific embodiment four: seeing figures.1.and.2 describes, and the said bracing ply 9 of this embodiment is a single layer structure.Other are identical with the specific embodiment three.
The specific embodiment five: seeing figures.1.and.2 describes, and the said bracing ply 9 of this embodiment is a multiple-structure.Other are identical with the specific embodiment three.
The specific embodiment six: describe with reference to Fig. 2 and Fig. 3; The described wheel rim 11 of this embodiment comprises crimped edge 40, curve arc 41, transition shoulder 42 and flat level 43; Respectively there is a transition shoulder 42 at the two ends of flat level 43; The outside of each transition shoulder 42 is provided with a curve arc 41, and all there is a crimped edge 40 in the outside of each curve arc 41.
The specific embodiment seven: describe with reference to Fig. 2 and Fig. 3, the radius of the said crimped edge 40 of this embodiment is 10mm.Other and specific embodiment six phase are together.
The specific embodiment eight: describe with reference to Fig. 2 and Fig. 3, the height of the said transition shoulder 42 of this embodiment is 5mm.Other are identical with the specific embodiment seven.
The specific embodiment nine: describe with reference to Fig. 2 and Fig. 3, the width of the said transition shoulder 42 of this embodiment is 6.35mm.Other are identical with the specific embodiment eight.
Diamond ring shape tire carcass of the present invention adopts closed-loop structure; Compare with typical radial-ply tyre structure (Fig. 4); Former tyre bead portion disappears; That is: no bead coil 20, no carcass metal-cord anti-package termination 25, no steel bead wire infantees 23, do not have down triangle and fill glue 21 and last triangle filling glue 22, thereby diamond ring shape tire self do not have former tyre bead portion yet tire is fixed on the wheel rim, and the enough lateral rigidities and the function of lateral deviation rigidity is provided for tire.Core of the present invention is through the combination of diamond ring shape tire and wheel rim the function of former typical radial-ply tyre structure tyre bead portion to be transferred on the wheel rim; Make diamond ring shape tire outside possessing the various excellent in-use performance of former typical radial-ply tyre structure comprehensively; Because the fault of construction at former typical radial-ply tyre tyre bead position has fundamentally been eliminated in the disappearance of carcass metal-cord anti-package termination 25.Simultaneously, because former tyre bead portion disappears, the corresponding former typical radial-ply tyre of diamond ring shape tire and in-use performance is compared, carcass forms seal force system, more reasonable stress, even, and tire is heavy to alleviate 10～25%.
Fig. 2 is a diamond ring shape tire construction cross sectional drawing, and the Inflatable balance contour shape in tire chamber is the basic foundation of design rim contour curve: the annular tire cavity volume that profile forms in the Inflatable balance of diamond ring shape tire is V1, and tire chamber cross-sectional area is S1, and the height in tire chamber is H; Diamond ring shape tire (Fig. 2) is as shown in Figure 1 with the combination of wheel rim.The rim contour curve is formed (Fig. 3) by four area segments: radius is that crimped edge 40, the curve arc 41 of 10mm is transition shoulder 42 and the flat level 43 of 6.35mm for 5mm, width highly.Transition shoulder 42 is tangent by the lower extreme point of one section radius camber line that is 5mm and curve arc 41, and crimped edge 40 is tangent with the upper extreme point of curve arc 41.Curve arc 41 can be to be made up of one section camber line, also can be several sections tangent being formed by connecting of arc.The height of curve arc 41 is h.The span of h is generally at 0.35H～0.6H.Curve arc 41 camber lines are long to be L41, and flat level 43 length are L43.Rim surface has certain roughness, makes friction coefficient＞0.4 between itself and rubber.Curve arc 41 is long-pending with flat level 43 cooresponding rim surfaces to be S0.
The whole matching design feature of above-mentioned this combination is: the tire cavity volume after the combination is V2, and tire chamber cross-sectional area is S2, and V1＞V2 is arranged, S1＞S2; When being inflated to governing criterion air pressure P0 after diamond ring shape tire and the assembling of rim contour curve, diamond ring shape tire section and rim contour curve contact wire length overall are L, make L >=0.8* (2*L41+L43) after the unitized design optimization, and L41 is meant the length of wheel rim curve arc; L43 is meant the length of wheel rim flat level, and the average pressure P >=0.2*P0 on wheel rim and the diamond ring shape tire contact surface, and the static friction force of wheel rim and diamond ring shape tire does
0.8*S0*0.2*P0*0.4＝0.64*S0*P0
If loading of tire is LL, the limit coefficient of static friction between tire and ground is 1.6, and design should be satisfied:
0.64*S0*P0≥1.6*LL
At this moment, the combination of diamond ring shape tire and wheel rim has realized in vehicle is advanced, preventing the slide relative between tire and wheel rim; The height of segment of curve 41 is through the finite element analysis optimal design, can guarantee that diamond ring shape tire embodies in actual use and has enough lateral rigidities and lateral deviation rigidity; When tire receives before side force reaches 1.6LL, tire begins slippage on the ground, and diamond ring shape tire and wheel rim separation phenomenon can not occur at the contact surface of segment of curve 41, and this is just like there being invisible bead coil to be fixed on the wheel rim diamond ring shape tire the same.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical personnel of being familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
- One kind to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof; It is characterized in that; Tire comprises: air-retaining liner (1), casingply (2), casingply termination (3), tire abdomen glue (5), sidewall rubber (6), tire shoulder are filled glue (7), tread-rubber (8), bracing ply (9) and tire tube valve (10); Said air-retaining liner (1) is arranged on the most inboard of tire; Said casingply (2) is coated on the outside of air-retaining liner (1); The end of casingply (2) is casingply termination (3), and two casingply terminations (3) are overlap joint each other, is disposed with tire abdomen glue (5), sidewall rubber (6), tire shoulder filling glue (7) and tread-rubber (8) on the outside face of casingply (2); Be provided with bracing ply (9) between casingply (2) and the tread-rubber (8), tire tube valve (10) is fixed on tire abdomen one side and through air-retaining liner (1) and casingply (2); The height in tire chamber is H; The height of curve arc (41) is h, and the span of h is at 0.35H～0.6H; Simultaneously, after wheel rim and tire assembled by the standard inflation, the sectional curve total length of wheel rim and tire contact surface reached more than 0.6 times of tire nominal aperture; Rim surface has certain roughness, makes friction coefficient＞0.4 between itself and rubber; Curve arc (41) is long-pending with the cooresponding rim surface of flat level (43) to be S0; When being inflated to governing criterion air pressure P0 after diamond ring shape tire and the assembling of rim contour curve, diamond ring shape tire section and rim contour curve contact wire length overall are L, make L >=0.8* (2*L41+L43) after the unitized design optimization, and L41 is meant the length of wheel rim curve arc; L43 is meant the length of wheel rim flat level, and the average pressure P >=0.2*P0 on wheel rim and the diamond ring shape tire contact surface, and the static friction force of wheel rim and diamond ring shape tire is: 0.8*S0*0.2*P0*0.4=0.64*S0*P0; If loading of tire is LL, the limit coefficient of static friction between tire and ground is 1.6, and design should be satisfied: 0.64*S0*P0 >=1.6*LL; Described wheel rim (11) comprises crimped edge (40), curve arc (41), transition shoulder (42) and flat level (43); Respectively there is a transition shoulder (42) at the two ends of flat level (43); The outside of each transition shoulder (42) is provided with a curve arc (41), and all there is a crimped edge (40) in the outside of each curve arc (41).
- 2. according to claim 1 to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof, it is characterized in that the lap-joint of said two casingply terminations (3) is in the inboard of bracing ply (9).
- It is 3. according to claim 2 that to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof; It is characterized in that; Also comprise two terminations filling glue (4); The section that glue (4) is filled in the termination is a triangle, and the outer end of each casingply termination (3) is provided with a termination and fills glue (4).
- 4. according to claim 3 to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof, it is characterized in that said bracing ply (9) is a single layer structure.
- 5. according to claim 4 to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof, it is characterized in that said bracing ply (9) is a multiple-structure.
- 6. according to claim 5 to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof, it is characterized in that the radius of said crimped edge (40) is 10mm.
- 7. according to claim 6 to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof, it is characterized in that the height of said transition shoulder (42) is 5mm.
- 8. according to claim 7 to have no bead coil inflatable section be the tire of diamond ring shape and the wheel of wheel rim thereof, it is characterized in that the width of said transition shoulder (42) is 6.35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010266279XA CN101934684B (en) | 2010-08-30 | 2010-08-30 | Pneumatic tyre with diamond-shape section and without bead rings, and rim thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010266279XA CN101934684B (en) | 2010-08-30 | 2010-08-30 | Pneumatic tyre with diamond-shape section and without bead rings, and rim thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101934684A CN101934684A (en) | 2011-01-05 |
| CN101934684B true CN101934684B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010266279XA Active CN101934684B (en) | 2010-08-30 | 2010-08-30 | Pneumatic tyre with diamond-shape section and without bead rings, and rim thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3606921A (en) * | 1969-06-23 | 1971-09-21 | Caterpillar Tractor Co | Belted oval pneumatic tube-tire |
| US4265293A (en) * | 1978-07-31 | 1981-05-05 | The Goodyear Tire & Rubber Company | Closed tube simplified radial tire, tire/rim assembly and method of making same |
| US5042546A (en) * | 1987-11-16 | 1991-08-27 | The Goodyear Tire & Rubber Company | Radial ply pneumatic tire with reverse curvature carcass ply |
| CN201089338Y (en) * | 2006-12-24 | 2008-07-23 | 邓昆 | Inflation fully-closed tubeless non-motor, motor, electric vehicle tire |
-
2010
- 2010-08-30 CN CN201010266279XA patent/CN101934684B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3606921A (en) * | 1969-06-23 | 1971-09-21 | Caterpillar Tractor Co | Belted oval pneumatic tube-tire |
| US4265293A (en) * | 1978-07-31 | 1981-05-05 | The Goodyear Tire & Rubber Company | Closed tube simplified radial tire, tire/rim assembly and method of making same |
| US5042546A (en) * | 1987-11-16 | 1991-08-27 | The Goodyear Tire & Rubber Company | Radial ply pneumatic tire with reverse curvature carcass ply |
| CN201089338Y (en) * | 2006-12-24 | 2008-07-23 | 邓昆 | Inflation fully-closed tubeless non-motor, motor, electric vehicle tire |
Non-Patent Citations (1)
| Title |
|---|
| 说明书附图1. |
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