CN1259909A - Tire with improved carcass ply turnup configuration - Google Patents
Tire with improved carcass ply turnup configuration Download PDFInfo
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- CN1259909A CN1259909A CN 97182285 CN97182285A CN1259909A CN 1259909 A CN1259909 A CN 1259909A CN 97182285 CN97182285 CN 97182285 CN 97182285 A CN97182285 A CN 97182285A CN 1259909 A CN1259909 A CN 1259909A
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Abstract
An improved track belt tire is constructed of a removable tread belt assembly mounted to the outer circumferential surface of a multi-layered tire carcass with an embedded carcass ply having ply turnup ends about the bead wires. The outermost ends of the first and second turnup enes being located radically outward at a distance equal to between about 2 and 3 times the diameters of the bead wires so that the ends of the turnup ends are supported by the flange ends of the tire rim when a tire carcass mounted to the tire rim is deflected. The turnup ends are also spported by first, second, third, and fourth apex elements disposed about each of the bead wires. The ply line of the carcass ply can also follow the natural ply line.
Description
Technical field
The present invention relates to a kind of air-inflation tyre that has removable tread, more specifically say and relate to a kind of air-inflation tyre that has improved removable tire tread belt, constitute by the removable tire tread belt on the tire carcass that is installed in an improved band tyre bead of radially strengthening, generally be used for the earthwork vehicle.
Background of invention
The air-inflation tyre of band removable tread of the present invention is generally used for bearing very high stress and load on the large-scale earthwork vehicle and under harsh environmental conditions, for example in the stone pit, and the mine, foundry plant, and tire bears other building sites of piercing through with abrasive conditions.
As U.S. US4,351,380 are discussed, and the removable tread assembly of some prior art comprises one group of that open around the peripheral intervals of supporting structure and ground ingear cover tire.Heavy load on cover tire causes producing very big stress, and these stress cause early stage tyre failure sometimes.4,351, No. 380 patent relates to a kind of improved removable tread assembly, and it comprises one group of cover tire, opens and is fixed on the stiffening band structure around the peripheral intervals of a load supporting structure, and the latter is positioned at a side of cover tire, and it is opposite that this side and cover tire mesh a ground-surface side.
The large-scale air-inflation tyre that is generally used for the earthwork vehicle lost efficacy because of heavily stressed that the harsh and unforgiving environments condition caused of their work and load sometimes.Compare with other inefficacy roots, these large-scale prior art tires at three tire positions or regional most probable lost efficacy.The anti-package end that first problematic zone is a cordline ruptures by the sidewall of tire sometimes.Second problematic zone is in the bead region tyre failure.The 3rd problematic zone is that crown district and/or the shoulder area at tire may lose efficacy.
In the prior art, the traditional solution of these problems is comprised the thickness that increases sidewall,, improve the rigidity and the intensity of bead region, and reduce the load distortion of tire down by improving sidewall thickness to improve bending stiffness.For further improving the durability of tire, the cordline anti-package part of tire is generally all strengthened.
Have with the common receipts of the present invention and allow people's US4, in 609,023, be provided with the sidewall inserts in tire carcass, the cordline structure meets its intrinsic shape when the tire inflation to allow.
Along with the continuous effort that improves earthmoving equipment, press for a kind of new mode and tire design that is used to improve the durability of earthmoving equipment tire.The present invention just relates to a kind of improved air-inflation tyre and removable tread assembly, takes this obviously to have reduced the frequency of early stage tyre failure.The invention still further relates to provides a kind of improved air-inflation tyre and removable tread assembly, be designed to allow to divide several sections transportation giant tire and assemble in the building ground then, with the problem that solution is difficult to transport giant tire, these tires surpass 13 inches high and nearly 8000 to 15000 pound weights sometimes.In addition, the present invention relates to a kind of improved air-inflation tyre and removable tread assembly, take this to change more economically the drive performance of tire, and can reduce the stock of the spare tyre of common needs.
Purpose of the present invention and general introduction
The purpose of this invention is to provide a kind of air-inflation tyre that is used for the earthwork vehicle, in this air-inflation tyre such as the claims one or more limited, and have to be constituted as and can realize wherein one or more following purpose abilities.
Another object of the present invention provides a kind of improved tire and removable tread assembly that is used for the earthwork vehicle, wherein can obviously reduce the frequency of early stage tyre failure.
Another object of the present invention relates to provides a kind of improved tire and removable tread assembly, and it is designed to allow branch several sections transportation giant tire, is sending to the place assembling then.
An also purpose of the present invention provides a kind of improved tire and removable tread assembly, and taking this can be rapidly and change the drive performance of tire economically.
An also purpose of the present invention provides a kind of improved tire and removable tread assembly, takes this to reduce the quantity of the tire spare part that stores at storehouse.
An also purpose of the present invention provides a kind of improved tire and removable tire tread belt assembly, has a carcass ply turnup configuration, with supporting anti-package end under very high deflection force.
A present invention also purpose provides a kind of improved tire and removable tire tread belt assembly, has a carcass ply turnup configuration, so that rim flange supports the anti-package end under very high deflection force.
A present invention also purpose provides a kind of improved tire and removable tire tread belt assembly, and wherein the cordline curve of body ply is followed intrinsic cordline curve.
According to one embodiment of present invention, a kind of air-inflation tyre of improved band removable tread comprises a detouchable removable tread assembly, is installed on the external peripheral surface of an expandable multi-layer tyre body.This tire carcass comprises one group of cordline, a pair of steel bead wire that separates and a pair of sidewall sections that extends to the external peripheral surface of described multi-layer tyre body from described steel bead wire.One first body ply is embedded in the described multi-layer tyre body and intactly around the circumferential extension of tire, and the anti-package end holds steel bead wire and axially stretch out from described steel bead wire.The outermost end of described anti-package end radially outward is positioned at about 2 to the 3 times distance that equals the steel bead wire diameter, this distance is that the intersection point from a line of centers and a straight line records to another straight line, wherein said line of centers passes the center of steel bead wire and extends, the most radially inner surface of described straight line and body ply is tangent, body ply anti-package end holds steel bead wire herein, and described another straight line is then vertical with described line of centers and tangent with the outer end of the anti-package end of cordline.
And, according to one embodiment of present invention, the air-inflation tyre of this band removable tread be included in that each steel bead wire top radially is provided with first, second, the third and fourth triangular rubber core spare, first of triangular rubber core spare is in abutting connection with each steel bead wire, second of triangular rubber core spare is arranged between the overlapping side of anti-package end of body ply, the 3rd of triangular rubber core spare is arranged between the axial inboard of the inner surface portion of its body ply during near steel bead wire and carcass anti-package end, and the 4th arranged outside against the anti-package end of body ply of triangular rubber core spare, the anti-package end just is clipped in the second and the 4th triangular rubber core like this.
And according to one embodiment of present invention, this first triangular rubber core spare is made of first elastic body, and described first elastic body is harder than second elastic body that constitutes the second, the third and fourth triangular rubber core spare.First elastic body is than second elastic body that constitutes the second, the third and fourth triangular rubber core spare firmly at least 20% to about 50%.
And according to one embodiment of present invention, the air-inflation tyre of this band removable tread comprises an interlocking structure, in order to detouchable removable tread assembly is fixed on the tire carcass.This interlocking structure is included in the interlocking tread structure on the inside face of detouchable removable tread assembly, in order to the outer circumferential surface of inflatable tyre carcass on the interlocking supporting structure engagement of complementation.
According to the present invention, the interlocking tread structure comprises one group of boss and groove of circumferentially extending; And the interlocking supporting structure comprises one group of boss and groove of circumferentially extending, be oriented with the removable tread module inner on the boss and the engagement of complementation of circumferential extension, move axially with respect to the circumferential periphery of inflatable load supporting structure to prevent the removable tread assembly.
According to the present invention, the cordline curve of body ply is followed intrinsic cordline curve.Promptly when tire inflation arrived normal operation pressure, body ply was roughly parallel to the axial inside face of rim flange towards the approaching angle of steel bead wire.
Brief description of drawings
Fig. 1 is a cross sectional drawing, shows an improved tire, has removable tire tread belt constructed in accordance;
Fig. 2 is a cross sectional drawing that amplifies, show shown in Figure 1 according to symmetrical tire of the present invention a side or half.
Fig. 2 A is a cross sectional drawing that amplifies, and shows the bead region of tire shown in Figure 2.
Definition
" triangular rubber core " refers to unstrengthened elastomer, around the bead core radial location.
" tire section height and Width " refers to its profile height (SH) and its section width (SW) Ratio, multiply by 100%, represent with percentage.
" axial " and " axially " refers to be parallel to straight line or the direction of tire axis of rotation.
" tyre bead " refers to the part of tire, comprises the anti-part of opening of an annular, by the glue-line cord Hold and be configured as with rim design and cooperate, band or be not with other reinforcements, for example wire loop Outsourcing cloth, tire are followed enhancement Layer, triangular rubber core, are protected toe glue and chafer.
" belt or cushion are strengthened structure " refers at least two-layer weaving or non-woven putting down The row cord ply is arranged on below the tyre surface, do not anchor on the tyre bead, and with respect in the tire Heart plane has scope at left and right two cord angles of 17 degree to 33 degree.
" cross-ply " refers to the tire with so a kind of carcass, at the skeleton of this carcass Strengthen in the layer cord with respect to the central plane of tire from the bead core to the bead core with about 25 °-50 ° Angle obliquely cross tire and extend. Cord extends with opposite angle in the layer that replaces.
" circumferential " refers to direction perpendicular to axial direction along the periphery extension on the surface of annular tire tread Line or direction.
" chafer " refers to the strip of material around the tyre bead arranged outside, to prevent because of wheel rim Aging and the wearing and tearing of cord ply that cause with respect to the motion of tire.
" tire is with enhancement Layer " refers to be arranged on the interior reinforcement material of bead part of tire.
" cord " refers to a line feeder thigh, and the cord ply in the tire is made of it.
" central plane (EP) " refers to such plane, and this plane is perpendicular to tire Pivot center also passes the center of its tyre surface.
" wire loop outsourcing cloth " refers to the reinforcement fabric that holds around bead core and triangular rubber core.
" ground connection impression " refer to tire tread under load and pressure with the connecing an of flat surfaces Ground area or contact area.
" inner liner " refers to layer that elastomer or other materials consist of or several layers, and it has formed The inner surface of tubeless tyre also comprises tire interior charge air conditioning or fluid.
The ratio of the gross area " payload space with " contacts road surface when being meant in the ground connection impression tire protector rubber is grounded the ratio that impression inner tread area (the noncontact area that comprises groove and so on) removes gained.
" nominal rim diameter " is meant that the steel bead wire of tire seals the diameter of the wheel rim base portion of part.
" normal inflation " is meant that suitable normal structure is the customised design inflation pressure under the specific load set of the condition of sevice of tire.
" rated load " is meant that suitable normal structure is that the customised design inflation pressure customised design down that the condition of sevice of tire are set is inflated load.
" cordline " is meant the pantostrat that the gluing parallel cord constitutes.
" radially " and " radially " be meant towards or leave the direction that the pivot center of tire radially extends.
" radial-ply tyre " be meant band bundle or the circumferential air-inflation tyre of constraint, wherein the cordline that extends to tyre bead from tyre bead is to lay with the cord angle between 65 °-90 ° with respect to the centre plane of tire.
" section height (SH) " is meant at the centre plane of the tire radial distance from the nominal rim diameter of tire to external diameter.
The detailed description of invention
With reference to Fig. 1, wherein show the section of the air-inflation tyre 10 of an improved band removable tread, this tire is the earthmoving equipment tire of a 60/80R63 specification and/or a 70/68R63 specification in this specific embodiment.The tire of 60/80R63 specification has the maximum inflation external diameter of 162 inches (411.48cm), the maximum inflation axial width of 60.00 inches (152.40cm) and the nominal tyre bead diameter of 63 inches (160.02cm).The tire of 70/68R63 specification has the maximum inflation external diameter of 162 inches (411.45cm), the maximum inflation axial width of 70.0 inches (177.80cm) and the nominal tyre bead diameter of 63 inches (160.02cm).Generally with air sometimes with the miscellaneous gas of air/nitrogen with described inflation of tire to the about 100 pounds/pressure of (psi) per square inch.
The air-inflation tyre 10 of improved band removable tread comprises a removable tread 12 that circumferentially extends with ground ingear edge, and the latter is installed on the tire carcass 14 of a band tyre bead of radially strengthening.The tire carcass 14 of band tyre bead generally includes a pair of lower tire side wall 16,18, extends radially inwardly and their radial extremity terminates in pair of bead steel wire 22,24 respectively from the outer surface 20 of tire carcass.Sidewall 16,18 respectively has a top 16a, 18a, lay respectively at the interior radially inner side that reaches the maximum section width of tire carcass of shoulder area of tire carcass 14, also respectively have a bottom 16b, 18b, lay respectively near the steel bead wire 22,24 and the radially inner side of the maximum section width of tire carcass 14.To describe the details of the structure of tire carcass 14 below in detail.
Tire carcass
With reference to Fig. 1 and 2, show the details of tire carcass 14.Axially inside surface 28 is inner glue layer linings 26 that form inside liner, in order to keep the air pressure of air-inflation tyre 10.Inner glue layer lining 26 covers the whole towards inside face 28 and in order to keep being used for making tire 10 gas filed air in the carcass of tire carcass 14.Zone at the sweep of inner surface 28 in tire carcass 12 is provided with fabric barrier layer 30 and 32, is extruded cord by cordline 34 with thinking that the top that intercepts rubber layer 36 provides supporting and prevents to intercept rubber.Although show two barrier layers 30 and 32, the needs according to customised design also can use one to four barrier layer within the scope of the invention.
Be one to intercept rubber layer 36 between inside liner 26 and cordline 34, the latter supports the whole length of cordline 34 and is made of the soft compound of the rubber that bears against cordline 34.Here the annular rigid pipe that is called triangular rubber core or triangular rubber core spare 38,39 respectively has the shape of general triangular and is separately positioned on the radial outside of steel bead wire 22,24 and intercepts between rubber 36 and the inside liner 26.Triangular rubber core 38,39 extends from the zone of steel bead wire 22,24 radially outer sidewall middle parts and inside liner 26 respectively, in order to improve the rigidity of bead region, so that prevent that tire is crooked on flange 35.From triangular rubber core 38,39 axially outwards and between the cordline 34 of steel bead wire 22,24 anti-packages, be respectively arranged with bottom sizing material chafer 40,41, the latter is positioned at the zone of dress tire wheel rim 42, supports steel bead wire 22 respectively, 24, so that prevent that tire is by adjacent dress tire wheel rim wearing and tearing.Against bottom sizing material chafer 40,41 and tire lower sides 16b, 18b is respectively arranged with top sizing material chafer 44,45, so that be that steel bead wire 22,24 provides supporting in the zone of flange 35, and prevents that tire is by adjacent dress tire wheel rim wearing and tearing.
Zone at local envelopment steel bead wire 22,24 is provided with wire bead infantees layer 46,47 between bottom chafer 40,41 and rubber barrier layer 36, in order to support steel bead wire 22,24 respectively.From Fig. 2 and 2A as seen, wire bead infantees layer 46 is mainly against the inward-facing surface setting of bottom chafer 40,41.Be respectively arranged with bead coil outsourcing cloth 48,49 between the inside face of cordline and steel bead wire 22 and 24, the latter is strengthened by the textile material that holds bead coil and one of them triangular rubber core at least a portion.At the end of cordline 34 34a, the both sides of 34b are two steel wire rubberised layers 50 and 52, in order to covering the end 34a of cordline 34 respectively, 34b also makes cordline 34 can be moving between rubberised layer 50 and 51 unlikelyly when crooked expose steel wire in cordline 34 in that tire manufacturing or tire are serious.
The structure of triangular rubber core
Here be called triangular rubber core 54,55 and roughly be tetragonal two annular rigid pipes and be separately positioned on steel bead wire 22,24 radial outside, at bead coil outsourcing cloth 48, between 49 and outside triangular rubber core 58,59, in order to improve respectively around steel bead wire 22, the rigidity in 24 zone, crooked on flange 35 to prevent tire.Triangular rubber core 54,55 also is arranged between the inner, bottom and anti-package end 34a and 34b of gluing cordline 34.Reclining triangular rubber core 54 and 55 and outward radial extends from it is two annular rigid pipes are called triangular rubber core 58 and 59 here, in order to help the end 34a and the 34b of supporting gluing cordline 34.Triangular rubber core 54,55 is made of harder compound, and its modulus is about 12.2-14.9megapascals/cm under 200% stretching
2Respectively from triangular rubber core 58 and 59 axially outside be outside triangular rubber core 62 and 64.
The location of body ply anti-package end
The location of cord layer reverse-packed end 34a and 34b is an importance of the present invention.Shown in Fig. 2 A, anti-package end 34a and 34b radially outward are arranged on a distance of about 2 to 3 times of bead coil diameters, this distance is that intersection point from line of centers 66 and straight line 67 is to straight line 68, wherein line of centers 66 extends by the center of steel bead wire 22,24, and straight line 67 is tangent with the most radially inner surface of body ply 34, body cord layer segment 34a herein, 34b is around steel bead wire 22,24, and straight line 68 is then vertical and tangent with the outer end of cordline 34 with line of centers 66.The anti-package end 34a of cordline 34, the importance of this position of the outer end of 34b is towards cordline end applied pressure, this pressure is enough to sometimes cause that the cordline end ruptures by sidewall in the prior art structure, and extend at the middle part of the more close lower tire side wall of anti-package end in the prior art.Make the anti-package end 34a of body ply 34, the outer end of 34b is anti-package end 34a of cordline 34 when service conditions makes tire to extrinsic deflection more leaning on upper/lower positions near the advantage of the radially outer of flange 35, and the outer end of 34b will be by flange 35 supportings.This scheme has significantly reduced anti-package end 34a, and the possibility of be full of cracks is caused in the outer end of 34b on the sidewall of tire carcass 14, and anti-package end 34a, and the outer end of 34b axially outwards penetrates the possibility of the sidewall of tire carcass 14.
Intrinsic cordline curve
The cordline curve of cordline 34 is followed intrinsic cordline curve, in case this means and expand that it has been in its intrinsic shape.Body ply 34 keeps its intrinsic shape to reduce the expansion strain on the tire when expanding.The part that extends downwardly into the cord of bead coil 22 similarly supports along the axial inside face 37 of its length by rim flange 35, and this axial inside face 37 is roughly parallel to the line of centers 66 that passes bead coil 22,24.
Removable tread
The removable tread that circumferentially extends with the ground ingear is removably mounted on the tire carcass 14.As shown in Figure 1, the downside of removable tread 12 or inner peripheral surface 70 comprise one group of boss 76 and groove 78 ingear boss 72 and groove 74 with tire carcass 14, with constraint removable tread 12 with respect to the side direction of carcass 14 or axial motion.Tire removable tread 12 comprises a tread portion 80 and one group of tyre surface bracing ply 82,84,86 and 88 (82-88).Although show four bracing ply 82-88, the tyre surface cordline that uses other quantity on demand also within the scope of the invention.Make up detouchable tire removable tread and tire carcass for being used for large-scale earthmoving equipment, its importance is in for example tire removable tread or the tire carcass wearing and tearing and under other parts situation in working order of the part of tire, enable the part of changing of tire, but not whole tire.And, also may wish to have dissimilar tread design, for example drive or turn to tread design.This feature allows a kind of low-cost means that change tire protector, to constitute the desirable tire of suitable type.This feature will greatly reduce the cost of spare tire storage, even can prolong the work-hours of tire.
A unique aspect of the present invention is to have adopted zero degree steel wire 90.Zero degree steel wire 90 is around the tire removable tread and be arranged to retrain because the removable tread that serious skew causes in the tire carcass radially outward swells.By preventing that the tire removable tread from radially outward swelling, tire protector can keep a more smooth tire tread contour, and the latter will improve tread life and durability.It also can provide many layer steel wires, to prevent cutting and to pierce through.Zero degree steel wire 90 is set in the annular boss 72 of tire protector 12 two additional advantages are arranged.The first, when being installed in removable tread on the tire carcass, tire carcass is expanded and outwards compressing, make its boss 76 be pressed in the circular groove 74 that the inside face around removable tread 12 is provided with.With the same manner, the boss 72 that comprises the removable tread of zero degree steel wire 90 just is pressed in the groove 20 of tire carcass 14.Yet because steel wire 90 stops annular boss 76 radially outward to be expanded from the crown of tire carcass 14, boss 76 just is pressed in the groove 70 that forms on the removable tread 12.Because removable tread can more slightly not expanded, so just having, annular boss 76 deeper is pressed into the interior tendency of circular groove 74, with the removable tread 12 on the supporting tire carcass 14 better in having the zone of zero degree steel wire 90.Although shown zero degree steel wire 90 is to be in the annular boss 72, the zero degree steel wire that comprises an extra play also within the scope of the invention, wherein this zero degree steel wire is embedded in the removable tread between boss 71 and annular boss 72.
In whole specification sheets, the technical terms rubber composite is meant any elastomeric compound.
Clearly, provide equipment and the method that is used to constitute an improvement tire and detouchable removable tread assembly according to the present invention, wherein by comprising that improved triangular rubber core structure has obviously increased the durability of tire.Improved tire and detouchable removable tread assembly allow the form transportation large scale tire with minute several sections, assemble in the arrival place then.In addition, detouchable removable tread assembly allows to adopt different removable treads on a tire carcass, so that promptly and economically change the drive performance of tire.And detouchable removable tread assembly provides the removable tread of the uniqueness that a kind of radially outer expansion is restricted, so tire protector will keep more smooth tire tread contour, and the latter has further improved the life-span and the durability of tyre surface.The structure of removable tread provides the protection of piercing through that improves.Tire carcass also has cord layer reverse-packed end in the position near steel bead wire, with the end by tyre rim supporting anti-package end.
Although described the present invention in conjunction with the embodiments, clearly those skilled in the art can obviously find out many other changes and variation according to above-mentioned instruction.Therefore, the invention is intended to comprise all these changes and variation owing to fall into the spirit and scope of the present invention.
Claims (14)
1. air-inflation tyre with removable tread comprises:
One detouchable removable tread assembly is installed on the external peripheral surface of an expandable multi-layer tyre body;
This tire carcass comprises at least one first body ply, a pair of steel bead wire that separates and a pair ofly extend to the sidewall sections of the external peripheral surface of described multi-layer tyre body from described steel bead wire, and a tread portion around the circumference of tire carcass;
Described at least one first body ply is embedded in the described multi-layer tyre body and intactly around the circumferential extension of tire, and has the steel bead wire of holding and from the axial outward extending first and second anti-package ends of described steel bead wire;
The outermost end of the described first and second anti-package ends radially outward is positioned at about 2 to the 3 times distance that equals the steel bead wire diameter, this distance is that the intersection point from a line of centers and a straight line records to another straight line, wherein said line of centers passes the center of steel bead wire and extends, the most radially inner surface of described straight line and body ply is tangent, body ply anti-package part is around steel bead wire herein, and described another straight line is then vertical with described line of centers and tangent with the outer end of the anti-package end of cordline.
2. the air-inflation tyre of band removable tread as claimed in claim 1, also comprise around first of each steel bead wire setting, second, the third and fourth triangular rubber core spare, first of triangular rubber core spare is provided with radially outwardly in abutting connection with each steel bead wire and from described steel bead wire, first of second described triangular rubber core spare of adjacency of triangular rubber core spare also is provided with radially outwardly from it, and the part of the first and second anti-package ends of the part of first body ply that extends from the circumference of tire carcass to steel bead wire and body ply, the 3rd the axial inside side against the first and second anti-package ends of first body ply of triangular rubber core spare is provided with, and the 4th the axial outside side against the first and second anti-package ends of triangular rubber core spare is provided with.
3. the air-inflation tyre of band removable tread as claimed in claim 2, wherein the first triangular rubber core spare is made of first elastic body, and described first elastic body is harder than second elastic body that constitutes the second, the third and fourth triangular rubber core spare.
4. the air-inflation tyre of band removable tread as claimed in claim 3, wherein the first triangular rubber core spare is made of first elastic body, and described first elastic body is than second elastic body that constitutes the second, the third and fourth triangular rubber core spare firmly at least 20% to about 50%.
5. the air-inflation tyre of band removable tread as claimed in claim 1 also comprises an interlocking structure, in order to detouchable removable tread assembly is fixed on the tire carcass.
6. the air-inflation tyre of band removable tread as claimed in claim 5, wherein interlocking structure is included in the interlocking tread structure on the inside face of detouchable removable tread assembly, in order to the outer circumferential surface of inflatable load supporting structure on the interlocking supporting structure engagement of complementation.
7. the air-inflation tyre of band removable tread as claimed in claim 6, wherein:
The interlocking tread structure comprises one group of boss and groove of circumferentially extending; And
The interlocking supporting structure comprises one group of boss and groove of circumferentially extending, be oriented with the removable tread module inner on the boss and the engagement of complementation of circumferential extension, move axially with respect to the circumferential periphery of inflatable load supporting structure to prevent the removable tread assembly.
8. the air-inflation tyre of band removable tread as claimed in claim 1, wherein the removable tread assembly comprises tread portion and one group of boss and groove that circumferentially extends of kiss the earth on its outer surface, and the latter is oriented and prevents that the removable tread assembly from moving axially with respect to the circumferential periphery of tire carcass.
9. the air-inflation tyre of band removable tread as claimed in claim 1, wherein the cordline curve of first body ply is followed intrinsic cordline curve.
10. air-inflation tyre comprises:
One expandable tire carcass has a tread package around its external peripheral surface setting;
This tire carcass comprises at least one first body ply, a pair of steel bead wire that separates and a pair of sidewall sections that extends to the external peripheral surface of described multi-layer tyre body from described steel bead wire;
Described at least one first body ply is embedded in the described multi-layer tyre body and intactly around the circumferential extension of tire, and has the steel bead wire of holding and from the axial outward extending first and second anti-package ends of described steel bead wire;
The outermost end of the described first and second anti-package ends radially outward is positioned at the about 2 and 3 times distance that equals the steel bead wire diameter, this distance is that the intersection point from a line of centers and a straight line records to another straight line, wherein said line of centers passes the center of steel bead wire and extends, the most radially inner surface of described straight line and body ply is tangent, body ply anti-package part is around steel bead wire herein, and described another straight line is then vertical with described line of centers and tangent with the outer end of the anti-package end of body ply.
11. the air-inflation tyre of band removable tread as claimed in claim 10, also comprise around first of each steel bead wire setting, second, the third and fourth triangular rubber core spare, first of triangular rubber core spare is provided with radially outwardly in abutting connection with each steel bead wire and from described steel bead wire, first of second described triangular rubber core spare of adjacency of triangular rubber core spare also is provided with radially outwardly from it, and the part of the first and second anti-package ends of the part of first body ply that extends from the circumference of tire carcass to steel bead wire and body ply, the 3rd the axial inside side against the first and second anti-package ends of first body ply of triangular rubber core spare is provided with, and the 4th the axial outside side against the first and second anti-package ends of triangular rubber core spare is provided with.
12. the air-inflation tyre of band removable tread as claimed in claim 11, wherein the first triangular rubber core spare is made of first elastic body, and described first elastic body is harder than second elastic body that constitutes the second, the third and fourth triangular rubber core spare.
13. the air-inflation tyre of band removable tread as claimed in claim 12, wherein the first triangular rubber core spare is made of first elastic body, and described first elastic body ratio constitutes second elastic body of the second, the third and fourth triangular rubber core spare firmly at least about 20% to about 50%.
14. the air-inflation tyre of band removable tread as claimed in claim 10, the cordline curve of wherein said first body ply is followed intrinsic cordline curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97182285 CN1259909A (en) | 1997-05-20 | 1997-05-20 | Tire with improved carcass ply turnup configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97182285 CN1259909A (en) | 1997-05-20 | 1997-05-20 | Tire with improved carcass ply turnup configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1259909A true CN1259909A (en) | 2000-07-12 |
Family
ID=5178376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97182285 Pending CN1259909A (en) | 1997-05-20 | 1997-05-20 | Tire with improved carcass ply turnup configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1259909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554007C (en) * | 2005-12-15 | 2009-10-28 | 固特异轮胎和橡胶公司 | The radial agricultural tyre that is used for high gap spraying machine |
-
1997
- 1997-05-20 CN CN 97182285 patent/CN1259909A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554007C (en) * | 2005-12-15 | 2009-10-28 | 固特异轮胎和橡胶公司 | The radial agricultural tyre that is used for high gap spraying machine |
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